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Merge tag 'io_uring-5.7-2020-05-22' of git://git.kernel.dk/linux-block
[thirdparty/linux.git] / drivers / net / ethernet / broadcom / bnxt / bnxt.c
1 /* Broadcom NetXtreme-C/E network driver.
2 *
3 * Copyright (c) 2014-2016 Broadcom Corporation
4 * Copyright (c) 2016-2019 Broadcom Limited
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation.
9 */
10
11 #include <linux/module.h>
12
13 #include <linux/stringify.h>
14 #include <linux/kernel.h>
15 #include <linux/timer.h>
16 #include <linux/errno.h>
17 #include <linux/ioport.h>
18 #include <linux/slab.h>
19 #include <linux/vmalloc.h>
20 #include <linux/interrupt.h>
21 #include <linux/pci.h>
22 #include <linux/netdevice.h>
23 #include <linux/etherdevice.h>
24 #include <linux/skbuff.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/bitops.h>
27 #include <linux/io.h>
28 #include <linux/irq.h>
29 #include <linux/delay.h>
30 #include <asm/byteorder.h>
31 #include <asm/page.h>
32 #include <linux/time.h>
33 #include <linux/mii.h>
34 #include <linux/mdio.h>
35 #include <linux/if.h>
36 #include <linux/if_vlan.h>
37 #include <linux/if_bridge.h>
38 #include <linux/rtc.h>
39 #include <linux/bpf.h>
40 #include <net/ip.h>
41 #include <net/tcp.h>
42 #include <net/udp.h>
43 #include <net/checksum.h>
44 #include <net/ip6_checksum.h>
45 #include <net/udp_tunnel.h>
46 #include <linux/workqueue.h>
47 #include <linux/prefetch.h>
48 #include <linux/cache.h>
49 #include <linux/log2.h>
50 #include <linux/aer.h>
51 #include <linux/bitmap.h>
52 #include <linux/cpu_rmap.h>
53 #include <linux/cpumask.h>
54 #include <net/pkt_cls.h>
55 #include <linux/hwmon.h>
56 #include <linux/hwmon-sysfs.h>
57 #include <net/page_pool.h>
58
59 #include "bnxt_hsi.h"
60 #include "bnxt.h"
61 #include "bnxt_ulp.h"
62 #include "bnxt_sriov.h"
63 #include "bnxt_ethtool.h"
64 #include "bnxt_dcb.h"
65 #include "bnxt_xdp.h"
66 #include "bnxt_vfr.h"
67 #include "bnxt_tc.h"
68 #include "bnxt_devlink.h"
69 #include "bnxt_debugfs.h"
70
71 #define BNXT_TX_TIMEOUT (5 * HZ)
72
73 MODULE_LICENSE("GPL");
74 MODULE_DESCRIPTION("Broadcom BCM573xx network driver");
75
76 #define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN)
77 #define BNXT_RX_DMA_OFFSET NET_SKB_PAD
78 #define BNXT_RX_COPY_THRESH 256
79
80 #define BNXT_TX_PUSH_THRESH 164
81
82 enum board_idx {
83 BCM57301,
84 BCM57302,
85 BCM57304,
86 BCM57417_NPAR,
87 BCM58700,
88 BCM57311,
89 BCM57312,
90 BCM57402,
91 BCM57404,
92 BCM57406,
93 BCM57402_NPAR,
94 BCM57407,
95 BCM57412,
96 BCM57414,
97 BCM57416,
98 BCM57417,
99 BCM57412_NPAR,
100 BCM57314,
101 BCM57417_SFP,
102 BCM57416_SFP,
103 BCM57404_NPAR,
104 BCM57406_NPAR,
105 BCM57407_SFP,
106 BCM57407_NPAR,
107 BCM57414_NPAR,
108 BCM57416_NPAR,
109 BCM57452,
110 BCM57454,
111 BCM5745x_NPAR,
112 BCM57508,
113 BCM57504,
114 BCM57502,
115 BCM57508_NPAR,
116 BCM57504_NPAR,
117 BCM57502_NPAR,
118 BCM58802,
119 BCM58804,
120 BCM58808,
121 NETXTREME_E_VF,
122 NETXTREME_C_VF,
123 NETXTREME_S_VF,
124 NETXTREME_E_P5_VF,
125 };
126
127 /* indexed by enum above */
128 static const struct {
129 char *name;
130 } board_info[] = {
131 [BCM57301] = { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" },
132 [BCM57302] = { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" },
133 [BCM57304] = { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" },
134 [BCM57417_NPAR] = { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" },
135 [BCM58700] = { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" },
136 [BCM57311] = { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" },
137 [BCM57312] = { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" },
138 [BCM57402] = { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" },
139 [BCM57404] = { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" },
140 [BCM57406] = { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" },
141 [BCM57402_NPAR] = { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" },
142 [BCM57407] = { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" },
143 [BCM57412] = { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" },
144 [BCM57414] = { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" },
145 [BCM57416] = { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" },
146 [BCM57417] = { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" },
147 [BCM57412_NPAR] = { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" },
148 [BCM57314] = { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" },
149 [BCM57417_SFP] = { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" },
150 [BCM57416_SFP] = { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" },
151 [BCM57404_NPAR] = { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" },
152 [BCM57406_NPAR] = { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" },
153 [BCM57407_SFP] = { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" },
154 [BCM57407_NPAR] = { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" },
155 [BCM57414_NPAR] = { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" },
156 [BCM57416_NPAR] = { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" },
157 [BCM57452] = { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" },
158 [BCM57454] = { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
159 [BCM5745x_NPAR] = { "Broadcom BCM5745x NetXtreme-E Ethernet Partition" },
160 [BCM57508] = { "Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" },
161 [BCM57504] = { "Broadcom BCM57504 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" },
162 [BCM57502] = { "Broadcom BCM57502 NetXtreme-E 10Gb/25Gb/50Gb Ethernet" },
163 [BCM57508_NPAR] = { "Broadcom BCM57508 NetXtreme-E Ethernet Partition" },
164 [BCM57504_NPAR] = { "Broadcom BCM57504 NetXtreme-E Ethernet Partition" },
165 [BCM57502_NPAR] = { "Broadcom BCM57502 NetXtreme-E Ethernet Partition" },
166 [BCM58802] = { "Broadcom BCM58802 NetXtreme-S 10Gb/25Gb/40Gb/50Gb Ethernet" },
167 [BCM58804] = { "Broadcom BCM58804 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
168 [BCM58808] = { "Broadcom BCM58808 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
169 [NETXTREME_E_VF] = { "Broadcom NetXtreme-E Ethernet Virtual Function" },
170 [NETXTREME_C_VF] = { "Broadcom NetXtreme-C Ethernet Virtual Function" },
171 [NETXTREME_S_VF] = { "Broadcom NetXtreme-S Ethernet Virtual Function" },
172 [NETXTREME_E_P5_VF] = { "Broadcom BCM5750X NetXtreme-E Ethernet Virtual Function" },
173 };
174
175 static const struct pci_device_id bnxt_pci_tbl[] = {
176 { PCI_VDEVICE(BROADCOM, 0x1604), .driver_data = BCM5745x_NPAR },
177 { PCI_VDEVICE(BROADCOM, 0x1605), .driver_data = BCM5745x_NPAR },
178 { PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 },
179 { PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR },
180 { PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 },
181 { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 },
182 { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 },
183 { PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR },
184 { PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 },
185 { PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 },
186 { PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 },
187 { PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 },
188 { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 },
189 { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 },
190 { PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR },
191 { PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 },
192 { PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 },
193 { PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 },
194 { PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 },
195 { PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 },
196 { PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR },
197 { PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 },
198 { PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP },
199 { PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP },
200 { PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR },
201 { PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR },
202 { PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP },
203 { PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR },
204 { PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR },
205 { PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR },
206 { PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR },
207 { PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR },
208 { PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR },
209 { PCI_VDEVICE(BROADCOM, 0x16f0), .driver_data = BCM58808 },
210 { PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 },
211 { PCI_VDEVICE(BROADCOM, 0x1750), .driver_data = BCM57508 },
212 { PCI_VDEVICE(BROADCOM, 0x1751), .driver_data = BCM57504 },
213 { PCI_VDEVICE(BROADCOM, 0x1752), .driver_data = BCM57502 },
214 { PCI_VDEVICE(BROADCOM, 0x1800), .driver_data = BCM57508_NPAR },
215 { PCI_VDEVICE(BROADCOM, 0x1801), .driver_data = BCM57504_NPAR },
216 { PCI_VDEVICE(BROADCOM, 0x1802), .driver_data = BCM57502_NPAR },
217 { PCI_VDEVICE(BROADCOM, 0x1803), .driver_data = BCM57508_NPAR },
218 { PCI_VDEVICE(BROADCOM, 0x1804), .driver_data = BCM57504_NPAR },
219 { PCI_VDEVICE(BROADCOM, 0x1805), .driver_data = BCM57502_NPAR },
220 { PCI_VDEVICE(BROADCOM, 0xd802), .driver_data = BCM58802 },
221 { PCI_VDEVICE(BROADCOM, 0xd804), .driver_data = BCM58804 },
222 #ifdef CONFIG_BNXT_SRIOV
223 { PCI_VDEVICE(BROADCOM, 0x1606), .driver_data = NETXTREME_E_VF },
224 { PCI_VDEVICE(BROADCOM, 0x1609), .driver_data = NETXTREME_E_VF },
225 { PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF },
226 { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF },
227 { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF },
228 { PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF },
229 { PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF },
230 { PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF },
231 { PCI_VDEVICE(BROADCOM, 0x1806), .driver_data = NETXTREME_E_P5_VF },
232 { PCI_VDEVICE(BROADCOM, 0x1807), .driver_data = NETXTREME_E_P5_VF },
233 { PCI_VDEVICE(BROADCOM, 0xd800), .driver_data = NETXTREME_S_VF },
234 #endif
235 { 0 }
236 };
237
238 MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl);
239
240 static const u16 bnxt_vf_req_snif[] = {
241 HWRM_FUNC_CFG,
242 HWRM_FUNC_VF_CFG,
243 HWRM_PORT_PHY_QCFG,
244 HWRM_CFA_L2_FILTER_ALLOC,
245 };
246
247 static const u16 bnxt_async_events_arr[] = {
248 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE,
249 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE,
250 ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD,
251 ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED,
252 ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE,
253 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE,
254 ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE,
255 ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY,
256 ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY,
257 };
258
259 static struct workqueue_struct *bnxt_pf_wq;
260
261 static bool bnxt_vf_pciid(enum board_idx idx)
262 {
263 return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF ||
264 idx == NETXTREME_S_VF || idx == NETXTREME_E_P5_VF);
265 }
266
267 #define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID)
268 #define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
269 #define DB_CP_IRQ_DIS_FLAGS (DB_KEY_CP | DB_IRQ_DIS)
270
271 #define BNXT_CP_DB_IRQ_DIS(db) \
272 writel(DB_CP_IRQ_DIS_FLAGS, db)
273
274 #define BNXT_DB_CQ(db, idx) \
275 writel(DB_CP_FLAGS | RING_CMP(idx), (db)->doorbell)
276
277 #define BNXT_DB_NQ_P5(db, idx) \
278 writeq((db)->db_key64 | DBR_TYPE_NQ | RING_CMP(idx), (db)->doorbell)
279
280 #define BNXT_DB_CQ_ARM(db, idx) \
281 writel(DB_CP_REARM_FLAGS | RING_CMP(idx), (db)->doorbell)
282
283 #define BNXT_DB_NQ_ARM_P5(db, idx) \
284 writeq((db)->db_key64 | DBR_TYPE_NQ_ARM | RING_CMP(idx), (db)->doorbell)
285
286 static void bnxt_db_nq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx)
287 {
288 if (bp->flags & BNXT_FLAG_CHIP_P5)
289 BNXT_DB_NQ_P5(db, idx);
290 else
291 BNXT_DB_CQ(db, idx);
292 }
293
294 static void bnxt_db_nq_arm(struct bnxt *bp, struct bnxt_db_info *db, u32 idx)
295 {
296 if (bp->flags & BNXT_FLAG_CHIP_P5)
297 BNXT_DB_NQ_ARM_P5(db, idx);
298 else
299 BNXT_DB_CQ_ARM(db, idx);
300 }
301
302 static void bnxt_db_cq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx)
303 {
304 if (bp->flags & BNXT_FLAG_CHIP_P5)
305 writeq(db->db_key64 | DBR_TYPE_CQ_ARMALL | RING_CMP(idx),
306 db->doorbell);
307 else
308 BNXT_DB_CQ(db, idx);
309 }
310
311 const u16 bnxt_lhint_arr[] = {
312 TX_BD_FLAGS_LHINT_512_AND_SMALLER,
313 TX_BD_FLAGS_LHINT_512_TO_1023,
314 TX_BD_FLAGS_LHINT_1024_TO_2047,
315 TX_BD_FLAGS_LHINT_1024_TO_2047,
316 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
317 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
318 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
319 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
320 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
321 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
322 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
323 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
324 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
325 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
326 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
327 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
328 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
329 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
330 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
331 };
332
333 static u16 bnxt_xmit_get_cfa_action(struct sk_buff *skb)
334 {
335 struct metadata_dst *md_dst = skb_metadata_dst(skb);
336
337 if (!md_dst || md_dst->type != METADATA_HW_PORT_MUX)
338 return 0;
339
340 return md_dst->u.port_info.port_id;
341 }
342
343 static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
344 {
345 struct bnxt *bp = netdev_priv(dev);
346 struct tx_bd *txbd;
347 struct tx_bd_ext *txbd1;
348 struct netdev_queue *txq;
349 int i;
350 dma_addr_t mapping;
351 unsigned int length, pad = 0;
352 u32 len, free_size, vlan_tag_flags, cfa_action, flags;
353 u16 prod, last_frag;
354 struct pci_dev *pdev = bp->pdev;
355 struct bnxt_tx_ring_info *txr;
356 struct bnxt_sw_tx_bd *tx_buf;
357
358 i = skb_get_queue_mapping(skb);
359 if (unlikely(i >= bp->tx_nr_rings)) {
360 dev_kfree_skb_any(skb);
361 return NETDEV_TX_OK;
362 }
363
364 txq = netdev_get_tx_queue(dev, i);
365 txr = &bp->tx_ring[bp->tx_ring_map[i]];
366 prod = txr->tx_prod;
367
368 free_size = bnxt_tx_avail(bp, txr);
369 if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) {
370 netif_tx_stop_queue(txq);
371 return NETDEV_TX_BUSY;
372 }
373
374 length = skb->len;
375 len = skb_headlen(skb);
376 last_frag = skb_shinfo(skb)->nr_frags;
377
378 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
379
380 txbd->tx_bd_opaque = prod;
381
382 tx_buf = &txr->tx_buf_ring[prod];
383 tx_buf->skb = skb;
384 tx_buf->nr_frags = last_frag;
385
386 vlan_tag_flags = 0;
387 cfa_action = bnxt_xmit_get_cfa_action(skb);
388 if (skb_vlan_tag_present(skb)) {
389 vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN |
390 skb_vlan_tag_get(skb);
391 /* Currently supports 8021Q, 8021AD vlan offloads
392 * QINQ1, QINQ2, QINQ3 vlan headers are deprecated
393 */
394 if (skb->vlan_proto == htons(ETH_P_8021Q))
395 vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT;
396 }
397
398 if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh) {
399 struct tx_push_buffer *tx_push_buf = txr->tx_push;
400 struct tx_push_bd *tx_push = &tx_push_buf->push_bd;
401 struct tx_bd_ext *tx_push1 = &tx_push->txbd2;
402 void __iomem *db = txr->tx_db.doorbell;
403 void *pdata = tx_push_buf->data;
404 u64 *end;
405 int j, push_len;
406
407 /* Set COAL_NOW to be ready quickly for the next push */
408 tx_push->tx_bd_len_flags_type =
409 cpu_to_le32((length << TX_BD_LEN_SHIFT) |
410 TX_BD_TYPE_LONG_TX_BD |
411 TX_BD_FLAGS_LHINT_512_AND_SMALLER |
412 TX_BD_FLAGS_COAL_NOW |
413 TX_BD_FLAGS_PACKET_END |
414 (2 << TX_BD_FLAGS_BD_CNT_SHIFT));
415
416 if (skb->ip_summed == CHECKSUM_PARTIAL)
417 tx_push1->tx_bd_hsize_lflags =
418 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
419 else
420 tx_push1->tx_bd_hsize_lflags = 0;
421
422 tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
423 tx_push1->tx_bd_cfa_action =
424 cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT);
425
426 end = pdata + length;
427 end = PTR_ALIGN(end, 8) - 1;
428 *end = 0;
429
430 skb_copy_from_linear_data(skb, pdata, len);
431 pdata += len;
432 for (j = 0; j < last_frag; j++) {
433 skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
434 void *fptr;
435
436 fptr = skb_frag_address_safe(frag);
437 if (!fptr)
438 goto normal_tx;
439
440 memcpy(pdata, fptr, skb_frag_size(frag));
441 pdata += skb_frag_size(frag);
442 }
443
444 txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type;
445 txbd->tx_bd_haddr = txr->data_mapping;
446 prod = NEXT_TX(prod);
447 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
448 memcpy(txbd, tx_push1, sizeof(*txbd));
449 prod = NEXT_TX(prod);
450 tx_push->doorbell =
451 cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod);
452 txr->tx_prod = prod;
453
454 tx_buf->is_push = 1;
455 netdev_tx_sent_queue(txq, skb->len);
456 wmb(); /* Sync is_push and byte queue before pushing data */
457
458 push_len = (length + sizeof(*tx_push) + 7) / 8;
459 if (push_len > 16) {
460 __iowrite64_copy(db, tx_push_buf, 16);
461 __iowrite32_copy(db + 4, tx_push_buf + 1,
462 (push_len - 16) << 1);
463 } else {
464 __iowrite64_copy(db, tx_push_buf, push_len);
465 }
466
467 goto tx_done;
468 }
469
470 normal_tx:
471 if (length < BNXT_MIN_PKT_SIZE) {
472 pad = BNXT_MIN_PKT_SIZE - length;
473 if (skb_pad(skb, pad)) {
474 /* SKB already freed. */
475 tx_buf->skb = NULL;
476 return NETDEV_TX_OK;
477 }
478 length = BNXT_MIN_PKT_SIZE;
479 }
480
481 mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE);
482
483 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) {
484 dev_kfree_skb_any(skb);
485 tx_buf->skb = NULL;
486 return NETDEV_TX_OK;
487 }
488
489 dma_unmap_addr_set(tx_buf, mapping, mapping);
490 flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD |
491 ((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT);
492
493 txbd->tx_bd_haddr = cpu_to_le64(mapping);
494
495 prod = NEXT_TX(prod);
496 txbd1 = (struct tx_bd_ext *)
497 &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
498
499 txbd1->tx_bd_hsize_lflags = 0;
500 if (skb_is_gso(skb)) {
501 u32 hdr_len;
502
503 if (skb->encapsulation)
504 hdr_len = skb_inner_network_offset(skb) +
505 skb_inner_network_header_len(skb) +
506 inner_tcp_hdrlen(skb);
507 else
508 hdr_len = skb_transport_offset(skb) +
509 tcp_hdrlen(skb);
510
511 txbd1->tx_bd_hsize_lflags = cpu_to_le32(TX_BD_FLAGS_LSO |
512 TX_BD_FLAGS_T_IPID |
513 (hdr_len << (TX_BD_HSIZE_SHIFT - 1)));
514 length = skb_shinfo(skb)->gso_size;
515 txbd1->tx_bd_mss = cpu_to_le32(length);
516 length += hdr_len;
517 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
518 txbd1->tx_bd_hsize_lflags =
519 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
520 txbd1->tx_bd_mss = 0;
521 }
522
523 length >>= 9;
524 if (unlikely(length >= ARRAY_SIZE(bnxt_lhint_arr))) {
525 dev_warn_ratelimited(&pdev->dev, "Dropped oversize %d bytes TX packet.\n",
526 skb->len);
527 i = 0;
528 goto tx_dma_error;
529 }
530 flags |= bnxt_lhint_arr[length];
531 txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
532
533 txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
534 txbd1->tx_bd_cfa_action =
535 cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT);
536 for (i = 0; i < last_frag; i++) {
537 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
538
539 prod = NEXT_TX(prod);
540 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
541
542 len = skb_frag_size(frag);
543 mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len,
544 DMA_TO_DEVICE);
545
546 if (unlikely(dma_mapping_error(&pdev->dev, mapping)))
547 goto tx_dma_error;
548
549 tx_buf = &txr->tx_buf_ring[prod];
550 dma_unmap_addr_set(tx_buf, mapping, mapping);
551
552 txbd->tx_bd_haddr = cpu_to_le64(mapping);
553
554 flags = len << TX_BD_LEN_SHIFT;
555 txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
556 }
557
558 flags &= ~TX_BD_LEN;
559 txbd->tx_bd_len_flags_type =
560 cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags |
561 TX_BD_FLAGS_PACKET_END);
562
563 netdev_tx_sent_queue(txq, skb->len);
564
565 /* Sync BD data before updating doorbell */
566 wmb();
567
568 prod = NEXT_TX(prod);
569 txr->tx_prod = prod;
570
571 if (!netdev_xmit_more() || netif_xmit_stopped(txq))
572 bnxt_db_write(bp, &txr->tx_db, prod);
573
574 tx_done:
575
576 if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) {
577 if (netdev_xmit_more() && !tx_buf->is_push)
578 bnxt_db_write(bp, &txr->tx_db, prod);
579
580 netif_tx_stop_queue(txq);
581
582 /* netif_tx_stop_queue() must be done before checking
583 * tx index in bnxt_tx_avail() below, because in
584 * bnxt_tx_int(), we update tx index before checking for
585 * netif_tx_queue_stopped().
586 */
587 smp_mb();
588 if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)
589 netif_tx_wake_queue(txq);
590 }
591 return NETDEV_TX_OK;
592
593 tx_dma_error:
594 last_frag = i;
595
596 /* start back at beginning and unmap skb */
597 prod = txr->tx_prod;
598 tx_buf = &txr->tx_buf_ring[prod];
599 tx_buf->skb = NULL;
600 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
601 skb_headlen(skb), PCI_DMA_TODEVICE);
602 prod = NEXT_TX(prod);
603
604 /* unmap remaining mapped pages */
605 for (i = 0; i < last_frag; i++) {
606 prod = NEXT_TX(prod);
607 tx_buf = &txr->tx_buf_ring[prod];
608 dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
609 skb_frag_size(&skb_shinfo(skb)->frags[i]),
610 PCI_DMA_TODEVICE);
611 }
612
613 dev_kfree_skb_any(skb);
614 return NETDEV_TX_OK;
615 }
616
617 static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts)
618 {
619 struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
620 struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index);
621 u16 cons = txr->tx_cons;
622 struct pci_dev *pdev = bp->pdev;
623 int i;
624 unsigned int tx_bytes = 0;
625
626 for (i = 0; i < nr_pkts; i++) {
627 struct bnxt_sw_tx_bd *tx_buf;
628 struct sk_buff *skb;
629 int j, last;
630
631 tx_buf = &txr->tx_buf_ring[cons];
632 cons = NEXT_TX(cons);
633 skb = tx_buf->skb;
634 tx_buf->skb = NULL;
635
636 if (tx_buf->is_push) {
637 tx_buf->is_push = 0;
638 goto next_tx_int;
639 }
640
641 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
642 skb_headlen(skb), PCI_DMA_TODEVICE);
643 last = tx_buf->nr_frags;
644
645 for (j = 0; j < last; j++) {
646 cons = NEXT_TX(cons);
647 tx_buf = &txr->tx_buf_ring[cons];
648 dma_unmap_page(
649 &pdev->dev,
650 dma_unmap_addr(tx_buf, mapping),
651 skb_frag_size(&skb_shinfo(skb)->frags[j]),
652 PCI_DMA_TODEVICE);
653 }
654
655 next_tx_int:
656 cons = NEXT_TX(cons);
657
658 tx_bytes += skb->len;
659 dev_kfree_skb_any(skb);
660 }
661
662 netdev_tx_completed_queue(txq, nr_pkts, tx_bytes);
663 txr->tx_cons = cons;
664
665 /* Need to make the tx_cons update visible to bnxt_start_xmit()
666 * before checking for netif_tx_queue_stopped(). Without the
667 * memory barrier, there is a small possibility that bnxt_start_xmit()
668 * will miss it and cause the queue to be stopped forever.
669 */
670 smp_mb();
671
672 if (unlikely(netif_tx_queue_stopped(txq)) &&
673 (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)) {
674 __netif_tx_lock(txq, smp_processor_id());
675 if (netif_tx_queue_stopped(txq) &&
676 bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh &&
677 txr->dev_state != BNXT_DEV_STATE_CLOSING)
678 netif_tx_wake_queue(txq);
679 __netif_tx_unlock(txq);
680 }
681 }
682
683 static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping,
684 struct bnxt_rx_ring_info *rxr,
685 gfp_t gfp)
686 {
687 struct device *dev = &bp->pdev->dev;
688 struct page *page;
689
690 page = page_pool_dev_alloc_pages(rxr->page_pool);
691 if (!page)
692 return NULL;
693
694 *mapping = dma_map_page_attrs(dev, page, 0, PAGE_SIZE, bp->rx_dir,
695 DMA_ATTR_WEAK_ORDERING);
696 if (dma_mapping_error(dev, *mapping)) {
697 page_pool_recycle_direct(rxr->page_pool, page);
698 return NULL;
699 }
700 *mapping += bp->rx_dma_offset;
701 return page;
702 }
703
704 static inline u8 *__bnxt_alloc_rx_data(struct bnxt *bp, dma_addr_t *mapping,
705 gfp_t gfp)
706 {
707 u8 *data;
708 struct pci_dev *pdev = bp->pdev;
709
710 data = kmalloc(bp->rx_buf_size, gfp);
711 if (!data)
712 return NULL;
713
714 *mapping = dma_map_single_attrs(&pdev->dev, data + bp->rx_dma_offset,
715 bp->rx_buf_use_size, bp->rx_dir,
716 DMA_ATTR_WEAK_ORDERING);
717
718 if (dma_mapping_error(&pdev->dev, *mapping)) {
719 kfree(data);
720 data = NULL;
721 }
722 return data;
723 }
724
725 int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
726 u16 prod, gfp_t gfp)
727 {
728 struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
729 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod];
730 dma_addr_t mapping;
731
732 if (BNXT_RX_PAGE_MODE(bp)) {
733 struct page *page =
734 __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp);
735
736 if (!page)
737 return -ENOMEM;
738
739 rx_buf->data = page;
740 rx_buf->data_ptr = page_address(page) + bp->rx_offset;
741 } else {
742 u8 *data = __bnxt_alloc_rx_data(bp, &mapping, gfp);
743
744 if (!data)
745 return -ENOMEM;
746
747 rx_buf->data = data;
748 rx_buf->data_ptr = data + bp->rx_offset;
749 }
750 rx_buf->mapping = mapping;
751
752 rxbd->rx_bd_haddr = cpu_to_le64(mapping);
753 return 0;
754 }
755
756 void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data)
757 {
758 u16 prod = rxr->rx_prod;
759 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
760 struct rx_bd *cons_bd, *prod_bd;
761
762 prod_rx_buf = &rxr->rx_buf_ring[prod];
763 cons_rx_buf = &rxr->rx_buf_ring[cons];
764
765 prod_rx_buf->data = data;
766 prod_rx_buf->data_ptr = cons_rx_buf->data_ptr;
767
768 prod_rx_buf->mapping = cons_rx_buf->mapping;
769
770 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
771 cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)];
772
773 prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr;
774 }
775
776 static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
777 {
778 u16 next, max = rxr->rx_agg_bmap_size;
779
780 next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx);
781 if (next >= max)
782 next = find_first_zero_bit(rxr->rx_agg_bmap, max);
783 return next;
784 }
785
786 static inline int bnxt_alloc_rx_page(struct bnxt *bp,
787 struct bnxt_rx_ring_info *rxr,
788 u16 prod, gfp_t gfp)
789 {
790 struct rx_bd *rxbd =
791 &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
792 struct bnxt_sw_rx_agg_bd *rx_agg_buf;
793 struct pci_dev *pdev = bp->pdev;
794 struct page *page;
795 dma_addr_t mapping;
796 u16 sw_prod = rxr->rx_sw_agg_prod;
797 unsigned int offset = 0;
798
799 if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) {
800 page = rxr->rx_page;
801 if (!page) {
802 page = alloc_page(gfp);
803 if (!page)
804 return -ENOMEM;
805 rxr->rx_page = page;
806 rxr->rx_page_offset = 0;
807 }
808 offset = rxr->rx_page_offset;
809 rxr->rx_page_offset += BNXT_RX_PAGE_SIZE;
810 if (rxr->rx_page_offset == PAGE_SIZE)
811 rxr->rx_page = NULL;
812 else
813 get_page(page);
814 } else {
815 page = alloc_page(gfp);
816 if (!page)
817 return -ENOMEM;
818 }
819
820 mapping = dma_map_page_attrs(&pdev->dev, page, offset,
821 BNXT_RX_PAGE_SIZE, PCI_DMA_FROMDEVICE,
822 DMA_ATTR_WEAK_ORDERING);
823 if (dma_mapping_error(&pdev->dev, mapping)) {
824 __free_page(page);
825 return -EIO;
826 }
827
828 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
829 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);
830
831 __set_bit(sw_prod, rxr->rx_agg_bmap);
832 rx_agg_buf = &rxr->rx_agg_ring[sw_prod];
833 rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod);
834
835 rx_agg_buf->page = page;
836 rx_agg_buf->offset = offset;
837 rx_agg_buf->mapping = mapping;
838 rxbd->rx_bd_haddr = cpu_to_le64(mapping);
839 rxbd->rx_bd_opaque = sw_prod;
840 return 0;
841 }
842
843 static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp,
844 struct bnxt_cp_ring_info *cpr,
845 u16 cp_cons, u16 curr)
846 {
847 struct rx_agg_cmp *agg;
848
849 cp_cons = RING_CMP(ADV_RAW_CMP(cp_cons, curr));
850 agg = (struct rx_agg_cmp *)
851 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
852 return agg;
853 }
854
855 static struct rx_agg_cmp *bnxt_get_tpa_agg_p5(struct bnxt *bp,
856 struct bnxt_rx_ring_info *rxr,
857 u16 agg_id, u16 curr)
858 {
859 struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[agg_id];
860
861 return &tpa_info->agg_arr[curr];
862 }
863
864 static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx,
865 u16 start, u32 agg_bufs, bool tpa)
866 {
867 struct bnxt_napi *bnapi = cpr->bnapi;
868 struct bnxt *bp = bnapi->bp;
869 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
870 u16 prod = rxr->rx_agg_prod;
871 u16 sw_prod = rxr->rx_sw_agg_prod;
872 bool p5_tpa = false;
873 u32 i;
874
875 if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
876 p5_tpa = true;
877
878 for (i = 0; i < agg_bufs; i++) {
879 u16 cons;
880 struct rx_agg_cmp *agg;
881 struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf;
882 struct rx_bd *prod_bd;
883 struct page *page;
884
885 if (p5_tpa)
886 agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, start + i);
887 else
888 agg = bnxt_get_agg(bp, cpr, idx, start + i);
889 cons = agg->rx_agg_cmp_opaque;
890 __clear_bit(cons, rxr->rx_agg_bmap);
891
892 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
893 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);
894
895 __set_bit(sw_prod, rxr->rx_agg_bmap);
896 prod_rx_buf = &rxr->rx_agg_ring[sw_prod];
897 cons_rx_buf = &rxr->rx_agg_ring[cons];
898
899 /* It is possible for sw_prod to be equal to cons, so
900 * set cons_rx_buf->page to NULL first.
901 */
902 page = cons_rx_buf->page;
903 cons_rx_buf->page = NULL;
904 prod_rx_buf->page = page;
905 prod_rx_buf->offset = cons_rx_buf->offset;
906
907 prod_rx_buf->mapping = cons_rx_buf->mapping;
908
909 prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
910
911 prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping);
912 prod_bd->rx_bd_opaque = sw_prod;
913
914 prod = NEXT_RX_AGG(prod);
915 sw_prod = NEXT_RX_AGG(sw_prod);
916 }
917 rxr->rx_agg_prod = prod;
918 rxr->rx_sw_agg_prod = sw_prod;
919 }
920
921 static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp,
922 struct bnxt_rx_ring_info *rxr,
923 u16 cons, void *data, u8 *data_ptr,
924 dma_addr_t dma_addr,
925 unsigned int offset_and_len)
926 {
927 unsigned int payload = offset_and_len >> 16;
928 unsigned int len = offset_and_len & 0xffff;
929 skb_frag_t *frag;
930 struct page *page = data;
931 u16 prod = rxr->rx_prod;
932 struct sk_buff *skb;
933 int off, err;
934
935 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
936 if (unlikely(err)) {
937 bnxt_reuse_rx_data(rxr, cons, data);
938 return NULL;
939 }
940 dma_addr -= bp->rx_dma_offset;
941 dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir,
942 DMA_ATTR_WEAK_ORDERING);
943 page_pool_release_page(rxr->page_pool, page);
944
945 if (unlikely(!payload))
946 payload = eth_get_headlen(bp->dev, data_ptr, len);
947
948 skb = napi_alloc_skb(&rxr->bnapi->napi, payload);
949 if (!skb) {
950 __free_page(page);
951 return NULL;
952 }
953
954 off = (void *)data_ptr - page_address(page);
955 skb_add_rx_frag(skb, 0, page, off, len, PAGE_SIZE);
956 memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN,
957 payload + NET_IP_ALIGN);
958
959 frag = &skb_shinfo(skb)->frags[0];
960 skb_frag_size_sub(frag, payload);
961 skb_frag_off_add(frag, payload);
962 skb->data_len -= payload;
963 skb->tail += payload;
964
965 return skb;
966 }
967
968 static struct sk_buff *bnxt_rx_skb(struct bnxt *bp,
969 struct bnxt_rx_ring_info *rxr, u16 cons,
970 void *data, u8 *data_ptr,
971 dma_addr_t dma_addr,
972 unsigned int offset_and_len)
973 {
974 u16 prod = rxr->rx_prod;
975 struct sk_buff *skb;
976 int err;
977
978 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
979 if (unlikely(err)) {
980 bnxt_reuse_rx_data(rxr, cons, data);
981 return NULL;
982 }
983
984 skb = build_skb(data, 0);
985 dma_unmap_single_attrs(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
986 bp->rx_dir, DMA_ATTR_WEAK_ORDERING);
987 if (!skb) {
988 kfree(data);
989 return NULL;
990 }
991
992 skb_reserve(skb, bp->rx_offset);
993 skb_put(skb, offset_and_len & 0xffff);
994 return skb;
995 }
996
997 static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
998 struct bnxt_cp_ring_info *cpr,
999 struct sk_buff *skb, u16 idx,
1000 u32 agg_bufs, bool tpa)
1001 {
1002 struct bnxt_napi *bnapi = cpr->bnapi;
1003 struct pci_dev *pdev = bp->pdev;
1004 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1005 u16 prod = rxr->rx_agg_prod;
1006 bool p5_tpa = false;
1007 u32 i;
1008
1009 if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
1010 p5_tpa = true;
1011
1012 for (i = 0; i < agg_bufs; i++) {
1013 u16 cons, frag_len;
1014 struct rx_agg_cmp *agg;
1015 struct bnxt_sw_rx_agg_bd *cons_rx_buf;
1016 struct page *page;
1017 dma_addr_t mapping;
1018
1019 if (p5_tpa)
1020 agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, i);
1021 else
1022 agg = bnxt_get_agg(bp, cpr, idx, i);
1023 cons = agg->rx_agg_cmp_opaque;
1024 frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) &
1025 RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT;
1026
1027 cons_rx_buf = &rxr->rx_agg_ring[cons];
1028 skb_fill_page_desc(skb, i, cons_rx_buf->page,
1029 cons_rx_buf->offset, frag_len);
1030 __clear_bit(cons, rxr->rx_agg_bmap);
1031
1032 /* It is possible for bnxt_alloc_rx_page() to allocate
1033 * a sw_prod index that equals the cons index, so we
1034 * need to clear the cons entry now.
1035 */
1036 mapping = cons_rx_buf->mapping;
1037 page = cons_rx_buf->page;
1038 cons_rx_buf->page = NULL;
1039
1040 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) {
1041 struct skb_shared_info *shinfo;
1042 unsigned int nr_frags;
1043
1044 shinfo = skb_shinfo(skb);
1045 nr_frags = --shinfo->nr_frags;
1046 __skb_frag_set_page(&shinfo->frags[nr_frags], NULL);
1047
1048 dev_kfree_skb(skb);
1049
1050 cons_rx_buf->page = page;
1051
1052 /* Update prod since possibly some pages have been
1053 * allocated already.
1054 */
1055 rxr->rx_agg_prod = prod;
1056 bnxt_reuse_rx_agg_bufs(cpr, idx, i, agg_bufs - i, tpa);
1057 return NULL;
1058 }
1059
1060 dma_unmap_page_attrs(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE,
1061 PCI_DMA_FROMDEVICE,
1062 DMA_ATTR_WEAK_ORDERING);
1063
1064 skb->data_len += frag_len;
1065 skb->len += frag_len;
1066 skb->truesize += PAGE_SIZE;
1067
1068 prod = NEXT_RX_AGG(prod);
1069 }
1070 rxr->rx_agg_prod = prod;
1071 return skb;
1072 }
1073
1074 static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
1075 u8 agg_bufs, u32 *raw_cons)
1076 {
1077 u16 last;
1078 struct rx_agg_cmp *agg;
1079
1080 *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs);
1081 last = RING_CMP(*raw_cons);
1082 agg = (struct rx_agg_cmp *)
1083 &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)];
1084 return RX_AGG_CMP_VALID(agg, *raw_cons);
1085 }
1086
1087 static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data,
1088 unsigned int len,
1089 dma_addr_t mapping)
1090 {
1091 struct bnxt *bp = bnapi->bp;
1092 struct pci_dev *pdev = bp->pdev;
1093 struct sk_buff *skb;
1094
1095 skb = napi_alloc_skb(&bnapi->napi, len);
1096 if (!skb)
1097 return NULL;
1098
1099 dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copy_thresh,
1100 bp->rx_dir);
1101
1102 memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN,
1103 len + NET_IP_ALIGN);
1104
1105 dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copy_thresh,
1106 bp->rx_dir);
1107
1108 skb_put(skb, len);
1109 return skb;
1110 }
1111
1112 static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
1113 u32 *raw_cons, void *cmp)
1114 {
1115 struct rx_cmp *rxcmp = cmp;
1116 u32 tmp_raw_cons = *raw_cons;
1117 u8 cmp_type, agg_bufs = 0;
1118
1119 cmp_type = RX_CMP_TYPE(rxcmp);
1120
1121 if (cmp_type == CMP_TYPE_RX_L2_CMP) {
1122 agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) &
1123 RX_CMP_AGG_BUFS) >>
1124 RX_CMP_AGG_BUFS_SHIFT;
1125 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
1126 struct rx_tpa_end_cmp *tpa_end = cmp;
1127
1128 if (bp->flags & BNXT_FLAG_CHIP_P5)
1129 return 0;
1130
1131 agg_bufs = TPA_END_AGG_BUFS(tpa_end);
1132 }
1133
1134 if (agg_bufs) {
1135 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
1136 return -EBUSY;
1137 }
1138 *raw_cons = tmp_raw_cons;
1139 return 0;
1140 }
1141
1142 static void bnxt_queue_fw_reset_work(struct bnxt *bp, unsigned long delay)
1143 {
1144 if (BNXT_PF(bp))
1145 queue_delayed_work(bnxt_pf_wq, &bp->fw_reset_task, delay);
1146 else
1147 schedule_delayed_work(&bp->fw_reset_task, delay);
1148 }
1149
1150 static void bnxt_queue_sp_work(struct bnxt *bp)
1151 {
1152 if (BNXT_PF(bp))
1153 queue_work(bnxt_pf_wq, &bp->sp_task);
1154 else
1155 schedule_work(&bp->sp_task);
1156 }
1157
1158 static void bnxt_cancel_sp_work(struct bnxt *bp)
1159 {
1160 if (BNXT_PF(bp))
1161 flush_workqueue(bnxt_pf_wq);
1162 else
1163 cancel_work_sync(&bp->sp_task);
1164 }
1165
1166 static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
1167 {
1168 if (!rxr->bnapi->in_reset) {
1169 rxr->bnapi->in_reset = true;
1170 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
1171 bnxt_queue_sp_work(bp);
1172 }
1173 rxr->rx_next_cons = 0xffff;
1174 }
1175
1176 static u16 bnxt_alloc_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id)
1177 {
1178 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
1179 u16 idx = agg_id & MAX_TPA_P5_MASK;
1180
1181 if (test_bit(idx, map->agg_idx_bmap))
1182 idx = find_first_zero_bit(map->agg_idx_bmap,
1183 BNXT_AGG_IDX_BMAP_SIZE);
1184 __set_bit(idx, map->agg_idx_bmap);
1185 map->agg_id_tbl[agg_id] = idx;
1186 return idx;
1187 }
1188
1189 static void bnxt_free_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
1190 {
1191 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
1192
1193 __clear_bit(idx, map->agg_idx_bmap);
1194 }
1195
1196 static u16 bnxt_lookup_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id)
1197 {
1198 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
1199
1200 return map->agg_id_tbl[agg_id];
1201 }
1202
1203 static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
1204 struct rx_tpa_start_cmp *tpa_start,
1205 struct rx_tpa_start_cmp_ext *tpa_start1)
1206 {
1207 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
1208 struct bnxt_tpa_info *tpa_info;
1209 u16 cons, prod, agg_id;
1210 struct rx_bd *prod_bd;
1211 dma_addr_t mapping;
1212
1213 if (bp->flags & BNXT_FLAG_CHIP_P5) {
1214 agg_id = TPA_START_AGG_ID_P5(tpa_start);
1215 agg_id = bnxt_alloc_agg_idx(rxr, agg_id);
1216 } else {
1217 agg_id = TPA_START_AGG_ID(tpa_start);
1218 }
1219 cons = tpa_start->rx_tpa_start_cmp_opaque;
1220 prod = rxr->rx_prod;
1221 cons_rx_buf = &rxr->rx_buf_ring[cons];
1222 prod_rx_buf = &rxr->rx_buf_ring[prod];
1223 tpa_info = &rxr->rx_tpa[agg_id];
1224
1225 if (unlikely(cons != rxr->rx_next_cons ||
1226 TPA_START_ERROR(tpa_start))) {
1227 netdev_warn(bp->dev, "TPA cons %x, expected cons %x, error code %x\n",
1228 cons, rxr->rx_next_cons,
1229 TPA_START_ERROR_CODE(tpa_start1));
1230 bnxt_sched_reset(bp, rxr);
1231 return;
1232 }
1233 /* Store cfa_code in tpa_info to use in tpa_end
1234 * completion processing.
1235 */
1236 tpa_info->cfa_code = TPA_START_CFA_CODE(tpa_start1);
1237 prod_rx_buf->data = tpa_info->data;
1238 prod_rx_buf->data_ptr = tpa_info->data_ptr;
1239
1240 mapping = tpa_info->mapping;
1241 prod_rx_buf->mapping = mapping;
1242
1243 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
1244
1245 prod_bd->rx_bd_haddr = cpu_to_le64(mapping);
1246
1247 tpa_info->data = cons_rx_buf->data;
1248 tpa_info->data_ptr = cons_rx_buf->data_ptr;
1249 cons_rx_buf->data = NULL;
1250 tpa_info->mapping = cons_rx_buf->mapping;
1251
1252 tpa_info->len =
1253 le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >>
1254 RX_TPA_START_CMP_LEN_SHIFT;
1255 if (likely(TPA_START_HASH_VALID(tpa_start))) {
1256 u32 hash_type = TPA_START_HASH_TYPE(tpa_start);
1257
1258 tpa_info->hash_type = PKT_HASH_TYPE_L4;
1259 tpa_info->gso_type = SKB_GSO_TCPV4;
1260 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
1261 if (hash_type == 3 || TPA_START_IS_IPV6(tpa_start1))
1262 tpa_info->gso_type = SKB_GSO_TCPV6;
1263 tpa_info->rss_hash =
1264 le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash);
1265 } else {
1266 tpa_info->hash_type = PKT_HASH_TYPE_NONE;
1267 tpa_info->gso_type = 0;
1268 if (netif_msg_rx_err(bp))
1269 netdev_warn(bp->dev, "TPA packet without valid hash\n");
1270 }
1271 tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2);
1272 tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata);
1273 tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info);
1274 tpa_info->agg_count = 0;
1275
1276 rxr->rx_prod = NEXT_RX(prod);
1277 cons = NEXT_RX(cons);
1278 rxr->rx_next_cons = NEXT_RX(cons);
1279 cons_rx_buf = &rxr->rx_buf_ring[cons];
1280
1281 bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data);
1282 rxr->rx_prod = NEXT_RX(rxr->rx_prod);
1283 cons_rx_buf->data = NULL;
1284 }
1285
1286 static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs)
1287 {
1288 if (agg_bufs)
1289 bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true);
1290 }
1291
1292 #ifdef CONFIG_INET
1293 static void bnxt_gro_tunnel(struct sk_buff *skb, __be16 ip_proto)
1294 {
1295 struct udphdr *uh = NULL;
1296
1297 if (ip_proto == htons(ETH_P_IP)) {
1298 struct iphdr *iph = (struct iphdr *)skb->data;
1299
1300 if (iph->protocol == IPPROTO_UDP)
1301 uh = (struct udphdr *)(iph + 1);
1302 } else {
1303 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
1304
1305 if (iph->nexthdr == IPPROTO_UDP)
1306 uh = (struct udphdr *)(iph + 1);
1307 }
1308 if (uh) {
1309 if (uh->check)
1310 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL_CSUM;
1311 else
1312 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
1313 }
1314 }
1315 #endif
1316
1317 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
1318 int payload_off, int tcp_ts,
1319 struct sk_buff *skb)
1320 {
1321 #ifdef CONFIG_INET
1322 struct tcphdr *th;
1323 int len, nw_off;
1324 u16 outer_ip_off, inner_ip_off, inner_mac_off;
1325 u32 hdr_info = tpa_info->hdr_info;
1326 bool loopback = false;
1327
1328 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info);
1329 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info);
1330 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info);
1331
1332 /* If the packet is an internal loopback packet, the offsets will
1333 * have an extra 4 bytes.
1334 */
1335 if (inner_mac_off == 4) {
1336 loopback = true;
1337 } else if (inner_mac_off > 4) {
1338 __be16 proto = *((__be16 *)(skb->data + inner_ip_off -
1339 ETH_HLEN - 2));
1340
1341 /* We only support inner iPv4/ipv6. If we don't see the
1342 * correct protocol ID, it must be a loopback packet where
1343 * the offsets are off by 4.
1344 */
1345 if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6))
1346 loopback = true;
1347 }
1348 if (loopback) {
1349 /* internal loopback packet, subtract all offsets by 4 */
1350 inner_ip_off -= 4;
1351 inner_mac_off -= 4;
1352 outer_ip_off -= 4;
1353 }
1354
1355 nw_off = inner_ip_off - ETH_HLEN;
1356 skb_set_network_header(skb, nw_off);
1357 if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) {
1358 struct ipv6hdr *iph = ipv6_hdr(skb);
1359
1360 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
1361 len = skb->len - skb_transport_offset(skb);
1362 th = tcp_hdr(skb);
1363 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
1364 } else {
1365 struct iphdr *iph = ip_hdr(skb);
1366
1367 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
1368 len = skb->len - skb_transport_offset(skb);
1369 th = tcp_hdr(skb);
1370 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
1371 }
1372
1373 if (inner_mac_off) { /* tunnel */
1374 __be16 proto = *((__be16 *)(skb->data + outer_ip_off -
1375 ETH_HLEN - 2));
1376
1377 bnxt_gro_tunnel(skb, proto);
1378 }
1379 #endif
1380 return skb;
1381 }
1382
1383 static struct sk_buff *bnxt_gro_func_5750x(struct bnxt_tpa_info *tpa_info,
1384 int payload_off, int tcp_ts,
1385 struct sk_buff *skb)
1386 {
1387 #ifdef CONFIG_INET
1388 u16 outer_ip_off, inner_ip_off, inner_mac_off;
1389 u32 hdr_info = tpa_info->hdr_info;
1390 int iphdr_len, nw_off;
1391
1392 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info);
1393 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info);
1394 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info);
1395
1396 nw_off = inner_ip_off - ETH_HLEN;
1397 skb_set_network_header(skb, nw_off);
1398 iphdr_len = (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) ?
1399 sizeof(struct ipv6hdr) : sizeof(struct iphdr);
1400 skb_set_transport_header(skb, nw_off + iphdr_len);
1401
1402 if (inner_mac_off) { /* tunnel */
1403 __be16 proto = *((__be16 *)(skb->data + outer_ip_off -
1404 ETH_HLEN - 2));
1405
1406 bnxt_gro_tunnel(skb, proto);
1407 }
1408 #endif
1409 return skb;
1410 }
1411
1412 #define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr))
1413 #define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr))
1414
1415 static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info,
1416 int payload_off, int tcp_ts,
1417 struct sk_buff *skb)
1418 {
1419 #ifdef CONFIG_INET
1420 struct tcphdr *th;
1421 int len, nw_off, tcp_opt_len = 0;
1422
1423 if (tcp_ts)
1424 tcp_opt_len = 12;
1425
1426 if (tpa_info->gso_type == SKB_GSO_TCPV4) {
1427 struct iphdr *iph;
1428
1429 nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len -
1430 ETH_HLEN;
1431 skb_set_network_header(skb, nw_off);
1432 iph = ip_hdr(skb);
1433 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
1434 len = skb->len - skb_transport_offset(skb);
1435 th = tcp_hdr(skb);
1436 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
1437 } else if (tpa_info->gso_type == SKB_GSO_TCPV6) {
1438 struct ipv6hdr *iph;
1439
1440 nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len -
1441 ETH_HLEN;
1442 skb_set_network_header(skb, nw_off);
1443 iph = ipv6_hdr(skb);
1444 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
1445 len = skb->len - skb_transport_offset(skb);
1446 th = tcp_hdr(skb);
1447 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
1448 } else {
1449 dev_kfree_skb_any(skb);
1450 return NULL;
1451 }
1452
1453 if (nw_off) /* tunnel */
1454 bnxt_gro_tunnel(skb, skb->protocol);
1455 #endif
1456 return skb;
1457 }
1458
1459 static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp,
1460 struct bnxt_tpa_info *tpa_info,
1461 struct rx_tpa_end_cmp *tpa_end,
1462 struct rx_tpa_end_cmp_ext *tpa_end1,
1463 struct sk_buff *skb)
1464 {
1465 #ifdef CONFIG_INET
1466 int payload_off;
1467 u16 segs;
1468
1469 segs = TPA_END_TPA_SEGS(tpa_end);
1470 if (segs == 1)
1471 return skb;
1472
1473 NAPI_GRO_CB(skb)->count = segs;
1474 skb_shinfo(skb)->gso_size =
1475 le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len);
1476 skb_shinfo(skb)->gso_type = tpa_info->gso_type;
1477 if (bp->flags & BNXT_FLAG_CHIP_P5)
1478 payload_off = TPA_END_PAYLOAD_OFF_P5(tpa_end1);
1479 else
1480 payload_off = TPA_END_PAYLOAD_OFF(tpa_end);
1481 skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb);
1482 if (likely(skb))
1483 tcp_gro_complete(skb);
1484 #endif
1485 return skb;
1486 }
1487
1488 /* Given the cfa_code of a received packet determine which
1489 * netdev (vf-rep or PF) the packet is destined to.
1490 */
1491 static struct net_device *bnxt_get_pkt_dev(struct bnxt *bp, u16 cfa_code)
1492 {
1493 struct net_device *dev = bnxt_get_vf_rep(bp, cfa_code);
1494
1495 /* if vf-rep dev is NULL, the must belongs to the PF */
1496 return dev ? dev : bp->dev;
1497 }
1498
1499 static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
1500 struct bnxt_cp_ring_info *cpr,
1501 u32 *raw_cons,
1502 struct rx_tpa_end_cmp *tpa_end,
1503 struct rx_tpa_end_cmp_ext *tpa_end1,
1504 u8 *event)
1505 {
1506 struct bnxt_napi *bnapi = cpr->bnapi;
1507 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1508 u8 *data_ptr, agg_bufs;
1509 unsigned int len;
1510 struct bnxt_tpa_info *tpa_info;
1511 dma_addr_t mapping;
1512 struct sk_buff *skb;
1513 u16 idx = 0, agg_id;
1514 void *data;
1515 bool gro;
1516
1517 if (unlikely(bnapi->in_reset)) {
1518 int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end);
1519
1520 if (rc < 0)
1521 return ERR_PTR(-EBUSY);
1522 return NULL;
1523 }
1524
1525 if (bp->flags & BNXT_FLAG_CHIP_P5) {
1526 agg_id = TPA_END_AGG_ID_P5(tpa_end);
1527 agg_id = bnxt_lookup_agg_idx(rxr, agg_id);
1528 agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1);
1529 tpa_info = &rxr->rx_tpa[agg_id];
1530 if (unlikely(agg_bufs != tpa_info->agg_count)) {
1531 netdev_warn(bp->dev, "TPA end agg_buf %d != expected agg_bufs %d\n",
1532 agg_bufs, tpa_info->agg_count);
1533 agg_bufs = tpa_info->agg_count;
1534 }
1535 tpa_info->agg_count = 0;
1536 *event |= BNXT_AGG_EVENT;
1537 bnxt_free_agg_idx(rxr, agg_id);
1538 idx = agg_id;
1539 gro = !!(bp->flags & BNXT_FLAG_GRO);
1540 } else {
1541 agg_id = TPA_END_AGG_ID(tpa_end);
1542 agg_bufs = TPA_END_AGG_BUFS(tpa_end);
1543 tpa_info = &rxr->rx_tpa[agg_id];
1544 idx = RING_CMP(*raw_cons);
1545 if (agg_bufs) {
1546 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
1547 return ERR_PTR(-EBUSY);
1548
1549 *event |= BNXT_AGG_EVENT;
1550 idx = NEXT_CMP(idx);
1551 }
1552 gro = !!TPA_END_GRO(tpa_end);
1553 }
1554 data = tpa_info->data;
1555 data_ptr = tpa_info->data_ptr;
1556 prefetch(data_ptr);
1557 len = tpa_info->len;
1558 mapping = tpa_info->mapping;
1559
1560 if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) {
1561 bnxt_abort_tpa(cpr, idx, agg_bufs);
1562 if (agg_bufs > MAX_SKB_FRAGS)
1563 netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n",
1564 agg_bufs, (int)MAX_SKB_FRAGS);
1565 return NULL;
1566 }
1567
1568 if (len <= bp->rx_copy_thresh) {
1569 skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping);
1570 if (!skb) {
1571 bnxt_abort_tpa(cpr, idx, agg_bufs);
1572 return NULL;
1573 }
1574 } else {
1575 u8 *new_data;
1576 dma_addr_t new_mapping;
1577
1578 new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC);
1579 if (!new_data) {
1580 bnxt_abort_tpa(cpr, idx, agg_bufs);
1581 return NULL;
1582 }
1583
1584 tpa_info->data = new_data;
1585 tpa_info->data_ptr = new_data + bp->rx_offset;
1586 tpa_info->mapping = new_mapping;
1587
1588 skb = build_skb(data, 0);
1589 dma_unmap_single_attrs(&bp->pdev->dev, mapping,
1590 bp->rx_buf_use_size, bp->rx_dir,
1591 DMA_ATTR_WEAK_ORDERING);
1592
1593 if (!skb) {
1594 kfree(data);
1595 bnxt_abort_tpa(cpr, idx, agg_bufs);
1596 return NULL;
1597 }
1598 skb_reserve(skb, bp->rx_offset);
1599 skb_put(skb, len);
1600 }
1601
1602 if (agg_bufs) {
1603 skb = bnxt_rx_pages(bp, cpr, skb, idx, agg_bufs, true);
1604 if (!skb) {
1605 /* Page reuse already handled by bnxt_rx_pages(). */
1606 return NULL;
1607 }
1608 }
1609
1610 skb->protocol =
1611 eth_type_trans(skb, bnxt_get_pkt_dev(bp, tpa_info->cfa_code));
1612
1613 if (tpa_info->hash_type != PKT_HASH_TYPE_NONE)
1614 skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type);
1615
1616 if ((tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) &&
1617 (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) {
1618 u16 vlan_proto = tpa_info->metadata >>
1619 RX_CMP_FLAGS2_METADATA_TPID_SFT;
1620 u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_TCI_MASK;
1621
1622 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag);
1623 }
1624
1625 skb_checksum_none_assert(skb);
1626 if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) {
1627 skb->ip_summed = CHECKSUM_UNNECESSARY;
1628 skb->csum_level =
1629 (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3;
1630 }
1631
1632 if (gro)
1633 skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb);
1634
1635 return skb;
1636 }
1637
1638 static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
1639 struct rx_agg_cmp *rx_agg)
1640 {
1641 u16 agg_id = TPA_AGG_AGG_ID(rx_agg);
1642 struct bnxt_tpa_info *tpa_info;
1643
1644 agg_id = bnxt_lookup_agg_idx(rxr, agg_id);
1645 tpa_info = &rxr->rx_tpa[agg_id];
1646 BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS);
1647 tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg;
1648 }
1649
1650 static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi,
1651 struct sk_buff *skb)
1652 {
1653 if (skb->dev != bp->dev) {
1654 /* this packet belongs to a vf-rep */
1655 bnxt_vf_rep_rx(bp, skb);
1656 return;
1657 }
1658 skb_record_rx_queue(skb, bnapi->index);
1659 napi_gro_receive(&bnapi->napi, skb);
1660 }
1661
1662 /* returns the following:
1663 * 1 - 1 packet successfully received
1664 * 0 - successful TPA_START, packet not completed yet
1665 * -EBUSY - completion ring does not have all the agg buffers yet
1666 * -ENOMEM - packet aborted due to out of memory
1667 * -EIO - packet aborted due to hw error indicated in BD
1668 */
1669 static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
1670 u32 *raw_cons, u8 *event)
1671 {
1672 struct bnxt_napi *bnapi = cpr->bnapi;
1673 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1674 struct net_device *dev = bp->dev;
1675 struct rx_cmp *rxcmp;
1676 struct rx_cmp_ext *rxcmp1;
1677 u32 tmp_raw_cons = *raw_cons;
1678 u16 cfa_code, cons, prod, cp_cons = RING_CMP(tmp_raw_cons);
1679 struct bnxt_sw_rx_bd *rx_buf;
1680 unsigned int len;
1681 u8 *data_ptr, agg_bufs, cmp_type;
1682 dma_addr_t dma_addr;
1683 struct sk_buff *skb;
1684 void *data;
1685 int rc = 0;
1686 u32 misc;
1687
1688 rxcmp = (struct rx_cmp *)
1689 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1690
1691 cmp_type = RX_CMP_TYPE(rxcmp);
1692
1693 if (cmp_type == CMP_TYPE_RX_TPA_AGG_CMP) {
1694 bnxt_tpa_agg(bp, rxr, (struct rx_agg_cmp *)rxcmp);
1695 goto next_rx_no_prod_no_len;
1696 }
1697
1698 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
1699 cp_cons = RING_CMP(tmp_raw_cons);
1700 rxcmp1 = (struct rx_cmp_ext *)
1701 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1702
1703 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
1704 return -EBUSY;
1705
1706 prod = rxr->rx_prod;
1707
1708 if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) {
1709 bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp,
1710 (struct rx_tpa_start_cmp_ext *)rxcmp1);
1711
1712 *event |= BNXT_RX_EVENT;
1713 goto next_rx_no_prod_no_len;
1714
1715 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
1716 skb = bnxt_tpa_end(bp, cpr, &tmp_raw_cons,
1717 (struct rx_tpa_end_cmp *)rxcmp,
1718 (struct rx_tpa_end_cmp_ext *)rxcmp1, event);
1719
1720 if (IS_ERR(skb))
1721 return -EBUSY;
1722
1723 rc = -ENOMEM;
1724 if (likely(skb)) {
1725 bnxt_deliver_skb(bp, bnapi, skb);
1726 rc = 1;
1727 }
1728 *event |= BNXT_RX_EVENT;
1729 goto next_rx_no_prod_no_len;
1730 }
1731
1732 cons = rxcmp->rx_cmp_opaque;
1733 if (unlikely(cons != rxr->rx_next_cons)) {
1734 int rc1 = bnxt_discard_rx(bp, cpr, raw_cons, rxcmp);
1735
1736 netdev_warn(bp->dev, "RX cons %x != expected cons %x\n",
1737 cons, rxr->rx_next_cons);
1738 bnxt_sched_reset(bp, rxr);
1739 return rc1;
1740 }
1741 rx_buf = &rxr->rx_buf_ring[cons];
1742 data = rx_buf->data;
1743 data_ptr = rx_buf->data_ptr;
1744 prefetch(data_ptr);
1745
1746 misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1);
1747 agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT;
1748
1749 if (agg_bufs) {
1750 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
1751 return -EBUSY;
1752
1753 cp_cons = NEXT_CMP(cp_cons);
1754 *event |= BNXT_AGG_EVENT;
1755 }
1756 *event |= BNXT_RX_EVENT;
1757
1758 rx_buf->data = NULL;
1759 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) {
1760 u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2);
1761
1762 bnxt_reuse_rx_data(rxr, cons, data);
1763 if (agg_bufs)
1764 bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs,
1765 false);
1766
1767 rc = -EIO;
1768 if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) {
1769 bnapi->cp_ring.rx_buf_errors++;
1770 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) {
1771 netdev_warn(bp->dev, "RX buffer error %x\n",
1772 rx_err);
1773 bnxt_sched_reset(bp, rxr);
1774 }
1775 }
1776 goto next_rx_no_len;
1777 }
1778
1779 len = le32_to_cpu(rxcmp->rx_cmp_len_flags_type) >> RX_CMP_LEN_SHIFT;
1780 dma_addr = rx_buf->mapping;
1781
1782 if (bnxt_rx_xdp(bp, rxr, cons, data, &data_ptr, &len, event)) {
1783 rc = 1;
1784 goto next_rx;
1785 }
1786
1787 if (len <= bp->rx_copy_thresh) {
1788 skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr);
1789 bnxt_reuse_rx_data(rxr, cons, data);
1790 if (!skb) {
1791 if (agg_bufs)
1792 bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0,
1793 agg_bufs, false);
1794 rc = -ENOMEM;
1795 goto next_rx;
1796 }
1797 } else {
1798 u32 payload;
1799
1800 if (rx_buf->data_ptr == data_ptr)
1801 payload = misc & RX_CMP_PAYLOAD_OFFSET;
1802 else
1803 payload = 0;
1804 skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr,
1805 payload | len);
1806 if (!skb) {
1807 rc = -ENOMEM;
1808 goto next_rx;
1809 }
1810 }
1811
1812 if (agg_bufs) {
1813 skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs, false);
1814 if (!skb) {
1815 rc = -ENOMEM;
1816 goto next_rx;
1817 }
1818 }
1819
1820 if (RX_CMP_HASH_VALID(rxcmp)) {
1821 u32 hash_type = RX_CMP_HASH_TYPE(rxcmp);
1822 enum pkt_hash_types type = PKT_HASH_TYPE_L4;
1823
1824 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
1825 if (hash_type != 1 && hash_type != 3)
1826 type = PKT_HASH_TYPE_L3;
1827 skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type);
1828 }
1829
1830 cfa_code = RX_CMP_CFA_CODE(rxcmp1);
1831 skb->protocol = eth_type_trans(skb, bnxt_get_pkt_dev(bp, cfa_code));
1832
1833 if ((rxcmp1->rx_cmp_flags2 &
1834 cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) &&
1835 (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) {
1836 u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data);
1837 u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_TCI_MASK;
1838 u16 vlan_proto = meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT;
1839
1840 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag);
1841 }
1842
1843 skb_checksum_none_assert(skb);
1844 if (RX_CMP_L4_CS_OK(rxcmp1)) {
1845 if (dev->features & NETIF_F_RXCSUM) {
1846 skb->ip_summed = CHECKSUM_UNNECESSARY;
1847 skb->csum_level = RX_CMP_ENCAP(rxcmp1);
1848 }
1849 } else {
1850 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) {
1851 if (dev->features & NETIF_F_RXCSUM)
1852 bnapi->cp_ring.rx_l4_csum_errors++;
1853 }
1854 }
1855
1856 bnxt_deliver_skb(bp, bnapi, skb);
1857 rc = 1;
1858
1859 next_rx:
1860 cpr->rx_packets += 1;
1861 cpr->rx_bytes += len;
1862
1863 next_rx_no_len:
1864 rxr->rx_prod = NEXT_RX(prod);
1865 rxr->rx_next_cons = NEXT_RX(cons);
1866
1867 next_rx_no_prod_no_len:
1868 *raw_cons = tmp_raw_cons;
1869
1870 return rc;
1871 }
1872
1873 /* In netpoll mode, if we are using a combined completion ring, we need to
1874 * discard the rx packets and recycle the buffers.
1875 */
1876 static int bnxt_force_rx_discard(struct bnxt *bp,
1877 struct bnxt_cp_ring_info *cpr,
1878 u32 *raw_cons, u8 *event)
1879 {
1880 u32 tmp_raw_cons = *raw_cons;
1881 struct rx_cmp_ext *rxcmp1;
1882 struct rx_cmp *rxcmp;
1883 u16 cp_cons;
1884 u8 cmp_type;
1885
1886 cp_cons = RING_CMP(tmp_raw_cons);
1887 rxcmp = (struct rx_cmp *)
1888 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1889
1890 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
1891 cp_cons = RING_CMP(tmp_raw_cons);
1892 rxcmp1 = (struct rx_cmp_ext *)
1893 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1894
1895 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
1896 return -EBUSY;
1897
1898 cmp_type = RX_CMP_TYPE(rxcmp);
1899 if (cmp_type == CMP_TYPE_RX_L2_CMP) {
1900 rxcmp1->rx_cmp_cfa_code_errors_v2 |=
1901 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR);
1902 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
1903 struct rx_tpa_end_cmp_ext *tpa_end1;
1904
1905 tpa_end1 = (struct rx_tpa_end_cmp_ext *)rxcmp1;
1906 tpa_end1->rx_tpa_end_cmp_errors_v2 |=
1907 cpu_to_le32(RX_TPA_END_CMP_ERRORS);
1908 }
1909 return bnxt_rx_pkt(bp, cpr, raw_cons, event);
1910 }
1911
1912 u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx)
1913 {
1914 struct bnxt_fw_health *fw_health = bp->fw_health;
1915 u32 reg = fw_health->regs[reg_idx];
1916 u32 reg_type, reg_off, val = 0;
1917
1918 reg_type = BNXT_FW_HEALTH_REG_TYPE(reg);
1919 reg_off = BNXT_FW_HEALTH_REG_OFF(reg);
1920 switch (reg_type) {
1921 case BNXT_FW_HEALTH_REG_TYPE_CFG:
1922 pci_read_config_dword(bp->pdev, reg_off, &val);
1923 break;
1924 case BNXT_FW_HEALTH_REG_TYPE_GRC:
1925 reg_off = fw_health->mapped_regs[reg_idx];
1926 /* fall through */
1927 case BNXT_FW_HEALTH_REG_TYPE_BAR0:
1928 val = readl(bp->bar0 + reg_off);
1929 break;
1930 case BNXT_FW_HEALTH_REG_TYPE_BAR1:
1931 val = readl(bp->bar1 + reg_off);
1932 break;
1933 }
1934 if (reg_idx == BNXT_FW_RESET_INPROG_REG)
1935 val &= fw_health->fw_reset_inprog_reg_mask;
1936 return val;
1937 }
1938
1939 #define BNXT_GET_EVENT_PORT(data) \
1940 ((data) & \
1941 ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK)
1942
1943 static int bnxt_async_event_process(struct bnxt *bp,
1944 struct hwrm_async_event_cmpl *cmpl)
1945 {
1946 u16 event_id = le16_to_cpu(cmpl->event_id);
1947
1948 /* TODO CHIMP_FW: Define event id's for link change, error etc */
1949 switch (event_id) {
1950 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: {
1951 u32 data1 = le32_to_cpu(cmpl->event_data1);
1952 struct bnxt_link_info *link_info = &bp->link_info;
1953
1954 if (BNXT_VF(bp))
1955 goto async_event_process_exit;
1956
1957 /* print unsupported speed warning in forced speed mode only */
1958 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) &&
1959 (data1 & 0x20000)) {
1960 u16 fw_speed = link_info->force_link_speed;
1961 u32 speed = bnxt_fw_to_ethtool_speed(fw_speed);
1962
1963 if (speed != SPEED_UNKNOWN)
1964 netdev_warn(bp->dev, "Link speed %d no longer supported\n",
1965 speed);
1966 }
1967 set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event);
1968 }
1969 /* fall through */
1970 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
1971 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE:
1972 set_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, &bp->sp_event);
1973 /* fall through */
1974 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
1975 set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event);
1976 break;
1977 case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
1978 set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event);
1979 break;
1980 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: {
1981 u32 data1 = le32_to_cpu(cmpl->event_data1);
1982 u16 port_id = BNXT_GET_EVENT_PORT(data1);
1983
1984 if (BNXT_VF(bp))
1985 break;
1986
1987 if (bp->pf.port_id != port_id)
1988 break;
1989
1990 set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event);
1991 break;
1992 }
1993 case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
1994 if (BNXT_PF(bp))
1995 goto async_event_process_exit;
1996 set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event);
1997 break;
1998 case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY: {
1999 u32 data1 = le32_to_cpu(cmpl->event_data1);
2000
2001 if (!bp->fw_health)
2002 goto async_event_process_exit;
2003
2004 bp->fw_reset_timestamp = jiffies;
2005 bp->fw_reset_min_dsecs = cmpl->timestamp_lo;
2006 if (!bp->fw_reset_min_dsecs)
2007 bp->fw_reset_min_dsecs = BNXT_DFLT_FW_RST_MIN_DSECS;
2008 bp->fw_reset_max_dsecs = le16_to_cpu(cmpl->timestamp_hi);
2009 if (!bp->fw_reset_max_dsecs)
2010 bp->fw_reset_max_dsecs = BNXT_DFLT_FW_RST_MAX_DSECS;
2011 if (EVENT_DATA1_RESET_NOTIFY_FATAL(data1)) {
2012 netdev_warn(bp->dev, "Firmware fatal reset event received\n");
2013 set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
2014 } else {
2015 netdev_warn(bp->dev, "Firmware non-fatal reset event received, max wait time %d msec\n",
2016 bp->fw_reset_max_dsecs * 100);
2017 }
2018 set_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event);
2019 break;
2020 }
2021 case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY: {
2022 struct bnxt_fw_health *fw_health = bp->fw_health;
2023 u32 data1 = le32_to_cpu(cmpl->event_data1);
2024
2025 if (!fw_health)
2026 goto async_event_process_exit;
2027
2028 fw_health->enabled = EVENT_DATA1_RECOVERY_ENABLED(data1);
2029 fw_health->master = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1);
2030 if (!fw_health->enabled)
2031 break;
2032
2033 if (netif_msg_drv(bp))
2034 netdev_info(bp->dev, "Error recovery info: error recovery[%d], master[%d], reset count[0x%x], health status: 0x%x\n",
2035 fw_health->enabled, fw_health->master,
2036 bnxt_fw_health_readl(bp,
2037 BNXT_FW_RESET_CNT_REG),
2038 bnxt_fw_health_readl(bp,
2039 BNXT_FW_HEALTH_REG));
2040 fw_health->tmr_multiplier =
2041 DIV_ROUND_UP(fw_health->polling_dsecs * HZ,
2042 bp->current_interval * 10);
2043 fw_health->tmr_counter = fw_health->tmr_multiplier;
2044 fw_health->last_fw_heartbeat =
2045 bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
2046 fw_health->last_fw_reset_cnt =
2047 bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
2048 goto async_event_process_exit;
2049 }
2050 default:
2051 goto async_event_process_exit;
2052 }
2053 bnxt_queue_sp_work(bp);
2054 async_event_process_exit:
2055 bnxt_ulp_async_events(bp, cmpl);
2056 return 0;
2057 }
2058
2059 static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp)
2060 {
2061 u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id;
2062 struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp;
2063 struct hwrm_fwd_req_cmpl *fwd_req_cmpl =
2064 (struct hwrm_fwd_req_cmpl *)txcmp;
2065
2066 switch (cmpl_type) {
2067 case CMPL_BASE_TYPE_HWRM_DONE:
2068 seq_id = le16_to_cpu(h_cmpl->sequence_id);
2069 if (seq_id == bp->hwrm_intr_seq_id)
2070 bp->hwrm_intr_seq_id = (u16)~bp->hwrm_intr_seq_id;
2071 else
2072 netdev_err(bp->dev, "Invalid hwrm seq id %d\n", seq_id);
2073 break;
2074
2075 case CMPL_BASE_TYPE_HWRM_FWD_REQ:
2076 vf_id = le16_to_cpu(fwd_req_cmpl->source_id);
2077
2078 if ((vf_id < bp->pf.first_vf_id) ||
2079 (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) {
2080 netdev_err(bp->dev, "Msg contains invalid VF id %x\n",
2081 vf_id);
2082 return -EINVAL;
2083 }
2084
2085 set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap);
2086 set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event);
2087 bnxt_queue_sp_work(bp);
2088 break;
2089
2090 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
2091 bnxt_async_event_process(bp,
2092 (struct hwrm_async_event_cmpl *)txcmp);
2093
2094 default:
2095 break;
2096 }
2097
2098 return 0;
2099 }
2100
2101 static irqreturn_t bnxt_msix(int irq, void *dev_instance)
2102 {
2103 struct bnxt_napi *bnapi = dev_instance;
2104 struct bnxt *bp = bnapi->bp;
2105 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2106 u32 cons = RING_CMP(cpr->cp_raw_cons);
2107
2108 cpr->event_ctr++;
2109 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
2110 napi_schedule(&bnapi->napi);
2111 return IRQ_HANDLED;
2112 }
2113
2114 static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
2115 {
2116 u32 raw_cons = cpr->cp_raw_cons;
2117 u16 cons = RING_CMP(raw_cons);
2118 struct tx_cmp *txcmp;
2119
2120 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];
2121
2122 return TX_CMP_VALID(txcmp, raw_cons);
2123 }
2124
2125 static irqreturn_t bnxt_inta(int irq, void *dev_instance)
2126 {
2127 struct bnxt_napi *bnapi = dev_instance;
2128 struct bnxt *bp = bnapi->bp;
2129 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2130 u32 cons = RING_CMP(cpr->cp_raw_cons);
2131 u32 int_status;
2132
2133 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
2134
2135 if (!bnxt_has_work(bp, cpr)) {
2136 int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS);
2137 /* return if erroneous interrupt */
2138 if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id)))
2139 return IRQ_NONE;
2140 }
2141
2142 /* disable ring IRQ */
2143 BNXT_CP_DB_IRQ_DIS(cpr->cp_db.doorbell);
2144
2145 /* Return here if interrupt is shared and is disabled. */
2146 if (unlikely(atomic_read(&bp->intr_sem) != 0))
2147 return IRQ_HANDLED;
2148
2149 napi_schedule(&bnapi->napi);
2150 return IRQ_HANDLED;
2151 }
2152
2153 static int __bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
2154 int budget)
2155 {
2156 struct bnxt_napi *bnapi = cpr->bnapi;
2157 u32 raw_cons = cpr->cp_raw_cons;
2158 u32 cons;
2159 int tx_pkts = 0;
2160 int rx_pkts = 0;
2161 u8 event = 0;
2162 struct tx_cmp *txcmp;
2163
2164 cpr->has_more_work = 0;
2165 cpr->had_work_done = 1;
2166 while (1) {
2167 int rc;
2168
2169 cons = RING_CMP(raw_cons);
2170 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];
2171
2172 if (!TX_CMP_VALID(txcmp, raw_cons))
2173 break;
2174
2175 /* The valid test of the entry must be done first before
2176 * reading any further.
2177 */
2178 dma_rmb();
2179 if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
2180 tx_pkts++;
2181 /* return full budget so NAPI will complete. */
2182 if (unlikely(tx_pkts > bp->tx_wake_thresh)) {
2183 rx_pkts = budget;
2184 raw_cons = NEXT_RAW_CMP(raw_cons);
2185 if (budget)
2186 cpr->has_more_work = 1;
2187 break;
2188 }
2189 } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
2190 if (likely(budget))
2191 rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event);
2192 else
2193 rc = bnxt_force_rx_discard(bp, cpr, &raw_cons,
2194 &event);
2195 if (likely(rc >= 0))
2196 rx_pkts += rc;
2197 /* Increment rx_pkts when rc is -ENOMEM to count towards
2198 * the NAPI budget. Otherwise, we may potentially loop
2199 * here forever if we consistently cannot allocate
2200 * buffers.
2201 */
2202 else if (rc == -ENOMEM && budget)
2203 rx_pkts++;
2204 else if (rc == -EBUSY) /* partial completion */
2205 break;
2206 } else if (unlikely((TX_CMP_TYPE(txcmp) ==
2207 CMPL_BASE_TYPE_HWRM_DONE) ||
2208 (TX_CMP_TYPE(txcmp) ==
2209 CMPL_BASE_TYPE_HWRM_FWD_REQ) ||
2210 (TX_CMP_TYPE(txcmp) ==
2211 CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) {
2212 bnxt_hwrm_handler(bp, txcmp);
2213 }
2214 raw_cons = NEXT_RAW_CMP(raw_cons);
2215
2216 if (rx_pkts && rx_pkts == budget) {
2217 cpr->has_more_work = 1;
2218 break;
2219 }
2220 }
2221
2222 if (event & BNXT_REDIRECT_EVENT)
2223 xdp_do_flush_map();
2224
2225 if (event & BNXT_TX_EVENT) {
2226 struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
2227 u16 prod = txr->tx_prod;
2228
2229 /* Sync BD data before updating doorbell */
2230 wmb();
2231
2232 bnxt_db_write_relaxed(bp, &txr->tx_db, prod);
2233 }
2234
2235 cpr->cp_raw_cons = raw_cons;
2236 bnapi->tx_pkts += tx_pkts;
2237 bnapi->events |= event;
2238 return rx_pkts;
2239 }
2240
2241 static void __bnxt_poll_work_done(struct bnxt *bp, struct bnxt_napi *bnapi)
2242 {
2243 if (bnapi->tx_pkts) {
2244 bnapi->tx_int(bp, bnapi, bnapi->tx_pkts);
2245 bnapi->tx_pkts = 0;
2246 }
2247
2248 if (bnapi->events & BNXT_RX_EVENT) {
2249 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
2250
2251 if (bnapi->events & BNXT_AGG_EVENT)
2252 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
2253 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
2254 }
2255 bnapi->events = 0;
2256 }
2257
2258 static int bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
2259 int budget)
2260 {
2261 struct bnxt_napi *bnapi = cpr->bnapi;
2262 int rx_pkts;
2263
2264 rx_pkts = __bnxt_poll_work(bp, cpr, budget);
2265
2266 /* ACK completion ring before freeing tx ring and producing new
2267 * buffers in rx/agg rings to prevent overflowing the completion
2268 * ring.
2269 */
2270 bnxt_db_cq(bp, &cpr->cp_db, cpr->cp_raw_cons);
2271
2272 __bnxt_poll_work_done(bp, bnapi);
2273 return rx_pkts;
2274 }
2275
2276 static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget)
2277 {
2278 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
2279 struct bnxt *bp = bnapi->bp;
2280 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2281 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
2282 struct tx_cmp *txcmp;
2283 struct rx_cmp_ext *rxcmp1;
2284 u32 cp_cons, tmp_raw_cons;
2285 u32 raw_cons = cpr->cp_raw_cons;
2286 u32 rx_pkts = 0;
2287 u8 event = 0;
2288
2289 while (1) {
2290 int rc;
2291
2292 cp_cons = RING_CMP(raw_cons);
2293 txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
2294
2295 if (!TX_CMP_VALID(txcmp, raw_cons))
2296 break;
2297
2298 if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
2299 tmp_raw_cons = NEXT_RAW_CMP(raw_cons);
2300 cp_cons = RING_CMP(tmp_raw_cons);
2301 rxcmp1 = (struct rx_cmp_ext *)
2302 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
2303
2304 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
2305 break;
2306
2307 /* force an error to recycle the buffer */
2308 rxcmp1->rx_cmp_cfa_code_errors_v2 |=
2309 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR);
2310
2311 rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event);
2312 if (likely(rc == -EIO) && budget)
2313 rx_pkts++;
2314 else if (rc == -EBUSY) /* partial completion */
2315 break;
2316 } else if (unlikely(TX_CMP_TYPE(txcmp) ==
2317 CMPL_BASE_TYPE_HWRM_DONE)) {
2318 bnxt_hwrm_handler(bp, txcmp);
2319 } else {
2320 netdev_err(bp->dev,
2321 "Invalid completion received on special ring\n");
2322 }
2323 raw_cons = NEXT_RAW_CMP(raw_cons);
2324
2325 if (rx_pkts == budget)
2326 break;
2327 }
2328
2329 cpr->cp_raw_cons = raw_cons;
2330 BNXT_DB_CQ(&cpr->cp_db, cpr->cp_raw_cons);
2331 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
2332
2333 if (event & BNXT_AGG_EVENT)
2334 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
2335
2336 if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) {
2337 napi_complete_done(napi, rx_pkts);
2338 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons);
2339 }
2340 return rx_pkts;
2341 }
2342
2343 static int bnxt_poll(struct napi_struct *napi, int budget)
2344 {
2345 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
2346 struct bnxt *bp = bnapi->bp;
2347 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2348 int work_done = 0;
2349
2350 while (1) {
2351 work_done += bnxt_poll_work(bp, cpr, budget - work_done);
2352
2353 if (work_done >= budget) {
2354 if (!budget)
2355 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons);
2356 break;
2357 }
2358
2359 if (!bnxt_has_work(bp, cpr)) {
2360 if (napi_complete_done(napi, work_done))
2361 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons);
2362 break;
2363 }
2364 }
2365 if (bp->flags & BNXT_FLAG_DIM) {
2366 struct dim_sample dim_sample = {};
2367
2368 dim_update_sample(cpr->event_ctr,
2369 cpr->rx_packets,
2370 cpr->rx_bytes,
2371 &dim_sample);
2372 net_dim(&cpr->dim, dim_sample);
2373 }
2374 return work_done;
2375 }
2376
2377 static int __bnxt_poll_cqs(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
2378 {
2379 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2380 int i, work_done = 0;
2381
2382 for (i = 0; i < 2; i++) {
2383 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i];
2384
2385 if (cpr2) {
2386 work_done += __bnxt_poll_work(bp, cpr2,
2387 budget - work_done);
2388 cpr->has_more_work |= cpr2->has_more_work;
2389 }
2390 }
2391 return work_done;
2392 }
2393
2394 static void __bnxt_poll_cqs_done(struct bnxt *bp, struct bnxt_napi *bnapi,
2395 u64 dbr_type)
2396 {
2397 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2398 int i;
2399
2400 for (i = 0; i < 2; i++) {
2401 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i];
2402 struct bnxt_db_info *db;
2403
2404 if (cpr2 && cpr2->had_work_done) {
2405 db = &cpr2->cp_db;
2406 writeq(db->db_key64 | dbr_type |
2407 RING_CMP(cpr2->cp_raw_cons), db->doorbell);
2408 cpr2->had_work_done = 0;
2409 }
2410 }
2411 __bnxt_poll_work_done(bp, bnapi);
2412 }
2413
2414 static int bnxt_poll_p5(struct napi_struct *napi, int budget)
2415 {
2416 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
2417 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2418 u32 raw_cons = cpr->cp_raw_cons;
2419 struct bnxt *bp = bnapi->bp;
2420 struct nqe_cn *nqcmp;
2421 int work_done = 0;
2422 u32 cons;
2423
2424 if (cpr->has_more_work) {
2425 cpr->has_more_work = 0;
2426 work_done = __bnxt_poll_cqs(bp, bnapi, budget);
2427 }
2428 while (1) {
2429 cons = RING_CMP(raw_cons);
2430 nqcmp = &cpr->nq_desc_ring[CP_RING(cons)][CP_IDX(cons)];
2431
2432 if (!NQ_CMP_VALID(nqcmp, raw_cons)) {
2433 if (cpr->has_more_work)
2434 break;
2435
2436 __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ_ARMALL);
2437 cpr->cp_raw_cons = raw_cons;
2438 if (napi_complete_done(napi, work_done))
2439 BNXT_DB_NQ_ARM_P5(&cpr->cp_db,
2440 cpr->cp_raw_cons);
2441 return work_done;
2442 }
2443
2444 /* The valid test of the entry must be done first before
2445 * reading any further.
2446 */
2447 dma_rmb();
2448
2449 if (nqcmp->type == cpu_to_le16(NQ_CN_TYPE_CQ_NOTIFICATION)) {
2450 u32 idx = le32_to_cpu(nqcmp->cq_handle_low);
2451 struct bnxt_cp_ring_info *cpr2;
2452
2453 cpr2 = cpr->cp_ring_arr[idx];
2454 work_done += __bnxt_poll_work(bp, cpr2,
2455 budget - work_done);
2456 cpr->has_more_work |= cpr2->has_more_work;
2457 } else {
2458 bnxt_hwrm_handler(bp, (struct tx_cmp *)nqcmp);
2459 }
2460 raw_cons = NEXT_RAW_CMP(raw_cons);
2461 }
2462 __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ);
2463 if (raw_cons != cpr->cp_raw_cons) {
2464 cpr->cp_raw_cons = raw_cons;
2465 BNXT_DB_NQ_P5(&cpr->cp_db, raw_cons);
2466 }
2467 return work_done;
2468 }
2469
2470 static void bnxt_free_tx_skbs(struct bnxt *bp)
2471 {
2472 int i, max_idx;
2473 struct pci_dev *pdev = bp->pdev;
2474
2475 if (!bp->tx_ring)
2476 return;
2477
2478 max_idx = bp->tx_nr_pages * TX_DESC_CNT;
2479 for (i = 0; i < bp->tx_nr_rings; i++) {
2480 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
2481 int j;
2482
2483 for (j = 0; j < max_idx;) {
2484 struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
2485 struct sk_buff *skb;
2486 int k, last;
2487
2488 if (i < bp->tx_nr_rings_xdp &&
2489 tx_buf->action == XDP_REDIRECT) {
2490 dma_unmap_single(&pdev->dev,
2491 dma_unmap_addr(tx_buf, mapping),
2492 dma_unmap_len(tx_buf, len),
2493 PCI_DMA_TODEVICE);
2494 xdp_return_frame(tx_buf->xdpf);
2495 tx_buf->action = 0;
2496 tx_buf->xdpf = NULL;
2497 j++;
2498 continue;
2499 }
2500
2501 skb = tx_buf->skb;
2502 if (!skb) {
2503 j++;
2504 continue;
2505 }
2506
2507 tx_buf->skb = NULL;
2508
2509 if (tx_buf->is_push) {
2510 dev_kfree_skb(skb);
2511 j += 2;
2512 continue;
2513 }
2514
2515 dma_unmap_single(&pdev->dev,
2516 dma_unmap_addr(tx_buf, mapping),
2517 skb_headlen(skb),
2518 PCI_DMA_TODEVICE);
2519
2520 last = tx_buf->nr_frags;
2521 j += 2;
2522 for (k = 0; k < last; k++, j++) {
2523 int ring_idx = j & bp->tx_ring_mask;
2524 skb_frag_t *frag = &skb_shinfo(skb)->frags[k];
2525
2526 tx_buf = &txr->tx_buf_ring[ring_idx];
2527 dma_unmap_page(
2528 &pdev->dev,
2529 dma_unmap_addr(tx_buf, mapping),
2530 skb_frag_size(frag), PCI_DMA_TODEVICE);
2531 }
2532 dev_kfree_skb(skb);
2533 }
2534 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
2535 }
2536 }
2537
2538 static void bnxt_free_rx_skbs(struct bnxt *bp)
2539 {
2540 int i, max_idx, max_agg_idx;
2541 struct pci_dev *pdev = bp->pdev;
2542
2543 if (!bp->rx_ring)
2544 return;
2545
2546 max_idx = bp->rx_nr_pages * RX_DESC_CNT;
2547 max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT;
2548 for (i = 0; i < bp->rx_nr_rings; i++) {
2549 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2550 struct bnxt_tpa_idx_map *map;
2551 int j;
2552
2553 if (rxr->rx_tpa) {
2554 for (j = 0; j < bp->max_tpa; j++) {
2555 struct bnxt_tpa_info *tpa_info =
2556 &rxr->rx_tpa[j];
2557 u8 *data = tpa_info->data;
2558
2559 if (!data)
2560 continue;
2561
2562 dma_unmap_single_attrs(&pdev->dev,
2563 tpa_info->mapping,
2564 bp->rx_buf_use_size,
2565 bp->rx_dir,
2566 DMA_ATTR_WEAK_ORDERING);
2567
2568 tpa_info->data = NULL;
2569
2570 kfree(data);
2571 }
2572 }
2573
2574 for (j = 0; j < max_idx; j++) {
2575 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[j];
2576 dma_addr_t mapping = rx_buf->mapping;
2577 void *data = rx_buf->data;
2578
2579 if (!data)
2580 continue;
2581
2582 rx_buf->data = NULL;
2583
2584 if (BNXT_RX_PAGE_MODE(bp)) {
2585 mapping -= bp->rx_dma_offset;
2586 dma_unmap_page_attrs(&pdev->dev, mapping,
2587 PAGE_SIZE, bp->rx_dir,
2588 DMA_ATTR_WEAK_ORDERING);
2589 page_pool_recycle_direct(rxr->page_pool, data);
2590 } else {
2591 dma_unmap_single_attrs(&pdev->dev, mapping,
2592 bp->rx_buf_use_size,
2593 bp->rx_dir,
2594 DMA_ATTR_WEAK_ORDERING);
2595 kfree(data);
2596 }
2597 }
2598
2599 for (j = 0; j < max_agg_idx; j++) {
2600 struct bnxt_sw_rx_agg_bd *rx_agg_buf =
2601 &rxr->rx_agg_ring[j];
2602 struct page *page = rx_agg_buf->page;
2603
2604 if (!page)
2605 continue;
2606
2607 dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping,
2608 BNXT_RX_PAGE_SIZE,
2609 PCI_DMA_FROMDEVICE,
2610 DMA_ATTR_WEAK_ORDERING);
2611
2612 rx_agg_buf->page = NULL;
2613 __clear_bit(j, rxr->rx_agg_bmap);
2614
2615 __free_page(page);
2616 }
2617 if (rxr->rx_page) {
2618 __free_page(rxr->rx_page);
2619 rxr->rx_page = NULL;
2620 }
2621 map = rxr->rx_tpa_idx_map;
2622 if (map)
2623 memset(map->agg_idx_bmap, 0, sizeof(map->agg_idx_bmap));
2624 }
2625 }
2626
2627 static void bnxt_free_skbs(struct bnxt *bp)
2628 {
2629 bnxt_free_tx_skbs(bp);
2630 bnxt_free_rx_skbs(bp);
2631 }
2632
2633 static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
2634 {
2635 struct pci_dev *pdev = bp->pdev;
2636 int i;
2637
2638 for (i = 0; i < rmem->nr_pages; i++) {
2639 if (!rmem->pg_arr[i])
2640 continue;
2641
2642 dma_free_coherent(&pdev->dev, rmem->page_size,
2643 rmem->pg_arr[i], rmem->dma_arr[i]);
2644
2645 rmem->pg_arr[i] = NULL;
2646 }
2647 if (rmem->pg_tbl) {
2648 size_t pg_tbl_size = rmem->nr_pages * 8;
2649
2650 if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG)
2651 pg_tbl_size = rmem->page_size;
2652 dma_free_coherent(&pdev->dev, pg_tbl_size,
2653 rmem->pg_tbl, rmem->pg_tbl_map);
2654 rmem->pg_tbl = NULL;
2655 }
2656 if (rmem->vmem_size && *rmem->vmem) {
2657 vfree(*rmem->vmem);
2658 *rmem->vmem = NULL;
2659 }
2660 }
2661
2662 static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
2663 {
2664 struct pci_dev *pdev = bp->pdev;
2665 u64 valid_bit = 0;
2666 int i;
2667
2668 if (rmem->flags & (BNXT_RMEM_VALID_PTE_FLAG | BNXT_RMEM_RING_PTE_FLAG))
2669 valid_bit = PTU_PTE_VALID;
2670 if ((rmem->nr_pages > 1 || rmem->depth > 0) && !rmem->pg_tbl) {
2671 size_t pg_tbl_size = rmem->nr_pages * 8;
2672
2673 if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG)
2674 pg_tbl_size = rmem->page_size;
2675 rmem->pg_tbl = dma_alloc_coherent(&pdev->dev, pg_tbl_size,
2676 &rmem->pg_tbl_map,
2677 GFP_KERNEL);
2678 if (!rmem->pg_tbl)
2679 return -ENOMEM;
2680 }
2681
2682 for (i = 0; i < rmem->nr_pages; i++) {
2683 u64 extra_bits = valid_bit;
2684
2685 rmem->pg_arr[i] = dma_alloc_coherent(&pdev->dev,
2686 rmem->page_size,
2687 &rmem->dma_arr[i],
2688 GFP_KERNEL);
2689 if (!rmem->pg_arr[i])
2690 return -ENOMEM;
2691
2692 if (rmem->init_val)
2693 memset(rmem->pg_arr[i], rmem->init_val,
2694 rmem->page_size);
2695 if (rmem->nr_pages > 1 || rmem->depth > 0) {
2696 if (i == rmem->nr_pages - 2 &&
2697 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG))
2698 extra_bits |= PTU_PTE_NEXT_TO_LAST;
2699 else if (i == rmem->nr_pages - 1 &&
2700 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG))
2701 extra_bits |= PTU_PTE_LAST;
2702 rmem->pg_tbl[i] =
2703 cpu_to_le64(rmem->dma_arr[i] | extra_bits);
2704 }
2705 }
2706
2707 if (rmem->vmem_size) {
2708 *rmem->vmem = vzalloc(rmem->vmem_size);
2709 if (!(*rmem->vmem))
2710 return -ENOMEM;
2711 }
2712 return 0;
2713 }
2714
2715 static void bnxt_free_tpa_info(struct bnxt *bp)
2716 {
2717 int i;
2718
2719 for (i = 0; i < bp->rx_nr_rings; i++) {
2720 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2721
2722 kfree(rxr->rx_tpa_idx_map);
2723 rxr->rx_tpa_idx_map = NULL;
2724 if (rxr->rx_tpa) {
2725 kfree(rxr->rx_tpa[0].agg_arr);
2726 rxr->rx_tpa[0].agg_arr = NULL;
2727 }
2728 kfree(rxr->rx_tpa);
2729 rxr->rx_tpa = NULL;
2730 }
2731 }
2732
2733 static int bnxt_alloc_tpa_info(struct bnxt *bp)
2734 {
2735 int i, j, total_aggs = 0;
2736
2737 bp->max_tpa = MAX_TPA;
2738 if (bp->flags & BNXT_FLAG_CHIP_P5) {
2739 if (!bp->max_tpa_v2)
2740 return 0;
2741 bp->max_tpa = max_t(u16, bp->max_tpa_v2, MAX_TPA_P5);
2742 total_aggs = bp->max_tpa * MAX_SKB_FRAGS;
2743 }
2744
2745 for (i = 0; i < bp->rx_nr_rings; i++) {
2746 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2747 struct rx_agg_cmp *agg;
2748
2749 rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info),
2750 GFP_KERNEL);
2751 if (!rxr->rx_tpa)
2752 return -ENOMEM;
2753
2754 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
2755 continue;
2756 agg = kcalloc(total_aggs, sizeof(*agg), GFP_KERNEL);
2757 rxr->rx_tpa[0].agg_arr = agg;
2758 if (!agg)
2759 return -ENOMEM;
2760 for (j = 1; j < bp->max_tpa; j++)
2761 rxr->rx_tpa[j].agg_arr = agg + j * MAX_SKB_FRAGS;
2762 rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map),
2763 GFP_KERNEL);
2764 if (!rxr->rx_tpa_idx_map)
2765 return -ENOMEM;
2766 }
2767 return 0;
2768 }
2769
2770 static void bnxt_free_rx_rings(struct bnxt *bp)
2771 {
2772 int i;
2773
2774 if (!bp->rx_ring)
2775 return;
2776
2777 bnxt_free_tpa_info(bp);
2778 for (i = 0; i < bp->rx_nr_rings; i++) {
2779 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2780 struct bnxt_ring_struct *ring;
2781
2782 if (rxr->xdp_prog)
2783 bpf_prog_put(rxr->xdp_prog);
2784
2785 if (xdp_rxq_info_is_reg(&rxr->xdp_rxq))
2786 xdp_rxq_info_unreg(&rxr->xdp_rxq);
2787
2788 page_pool_destroy(rxr->page_pool);
2789 rxr->page_pool = NULL;
2790
2791 kfree(rxr->rx_agg_bmap);
2792 rxr->rx_agg_bmap = NULL;
2793
2794 ring = &rxr->rx_ring_struct;
2795 bnxt_free_ring(bp, &ring->ring_mem);
2796
2797 ring = &rxr->rx_agg_ring_struct;
2798 bnxt_free_ring(bp, &ring->ring_mem);
2799 }
2800 }
2801
2802 static int bnxt_alloc_rx_page_pool(struct bnxt *bp,
2803 struct bnxt_rx_ring_info *rxr)
2804 {
2805 struct page_pool_params pp = { 0 };
2806
2807 pp.pool_size = bp->rx_ring_size;
2808 pp.nid = dev_to_node(&bp->pdev->dev);
2809 pp.dev = &bp->pdev->dev;
2810 pp.dma_dir = DMA_BIDIRECTIONAL;
2811
2812 rxr->page_pool = page_pool_create(&pp);
2813 if (IS_ERR(rxr->page_pool)) {
2814 int err = PTR_ERR(rxr->page_pool);
2815
2816 rxr->page_pool = NULL;
2817 return err;
2818 }
2819 return 0;
2820 }
2821
2822 static int bnxt_alloc_rx_rings(struct bnxt *bp)
2823 {
2824 int i, rc = 0, agg_rings = 0;
2825
2826 if (!bp->rx_ring)
2827 return -ENOMEM;
2828
2829 if (bp->flags & BNXT_FLAG_AGG_RINGS)
2830 agg_rings = 1;
2831
2832 for (i = 0; i < bp->rx_nr_rings; i++) {
2833 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2834 struct bnxt_ring_struct *ring;
2835
2836 ring = &rxr->rx_ring_struct;
2837
2838 rc = bnxt_alloc_rx_page_pool(bp, rxr);
2839 if (rc)
2840 return rc;
2841
2842 rc = xdp_rxq_info_reg(&rxr->xdp_rxq, bp->dev, i);
2843 if (rc < 0)
2844 return rc;
2845
2846 rc = xdp_rxq_info_reg_mem_model(&rxr->xdp_rxq,
2847 MEM_TYPE_PAGE_POOL,
2848 rxr->page_pool);
2849 if (rc) {
2850 xdp_rxq_info_unreg(&rxr->xdp_rxq);
2851 return rc;
2852 }
2853
2854 rc = bnxt_alloc_ring(bp, &ring->ring_mem);
2855 if (rc)
2856 return rc;
2857
2858 ring->grp_idx = i;
2859 if (agg_rings) {
2860 u16 mem_size;
2861
2862 ring = &rxr->rx_agg_ring_struct;
2863 rc = bnxt_alloc_ring(bp, &ring->ring_mem);
2864 if (rc)
2865 return rc;
2866
2867 ring->grp_idx = i;
2868 rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1;
2869 mem_size = rxr->rx_agg_bmap_size / 8;
2870 rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL);
2871 if (!rxr->rx_agg_bmap)
2872 return -ENOMEM;
2873 }
2874 }
2875 if (bp->flags & BNXT_FLAG_TPA)
2876 rc = bnxt_alloc_tpa_info(bp);
2877 return rc;
2878 }
2879
2880 static void bnxt_free_tx_rings(struct bnxt *bp)
2881 {
2882 int i;
2883 struct pci_dev *pdev = bp->pdev;
2884
2885 if (!bp->tx_ring)
2886 return;
2887
2888 for (i = 0; i < bp->tx_nr_rings; i++) {
2889 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
2890 struct bnxt_ring_struct *ring;
2891
2892 if (txr->tx_push) {
2893 dma_free_coherent(&pdev->dev, bp->tx_push_size,
2894 txr->tx_push, txr->tx_push_mapping);
2895 txr->tx_push = NULL;
2896 }
2897
2898 ring = &txr->tx_ring_struct;
2899
2900 bnxt_free_ring(bp, &ring->ring_mem);
2901 }
2902 }
2903
2904 static int bnxt_alloc_tx_rings(struct bnxt *bp)
2905 {
2906 int i, j, rc;
2907 struct pci_dev *pdev = bp->pdev;
2908
2909 bp->tx_push_size = 0;
2910 if (bp->tx_push_thresh) {
2911 int push_size;
2912
2913 push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) +
2914 bp->tx_push_thresh);
2915
2916 if (push_size > 256) {
2917 push_size = 0;
2918 bp->tx_push_thresh = 0;
2919 }
2920
2921 bp->tx_push_size = push_size;
2922 }
2923
2924 for (i = 0, j = 0; i < bp->tx_nr_rings; i++) {
2925 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
2926 struct bnxt_ring_struct *ring;
2927 u8 qidx;
2928
2929 ring = &txr->tx_ring_struct;
2930
2931 rc = bnxt_alloc_ring(bp, &ring->ring_mem);
2932 if (rc)
2933 return rc;
2934
2935 ring->grp_idx = txr->bnapi->index;
2936 if (bp->tx_push_size) {
2937 dma_addr_t mapping;
2938
2939 /* One pre-allocated DMA buffer to backup
2940 * TX push operation
2941 */
2942 txr->tx_push = dma_alloc_coherent(&pdev->dev,
2943 bp->tx_push_size,
2944 &txr->tx_push_mapping,
2945 GFP_KERNEL);
2946
2947 if (!txr->tx_push)
2948 return -ENOMEM;
2949
2950 mapping = txr->tx_push_mapping +
2951 sizeof(struct tx_push_bd);
2952 txr->data_mapping = cpu_to_le64(mapping);
2953 }
2954 qidx = bp->tc_to_qidx[j];
2955 ring->queue_id = bp->q_info[qidx].queue_id;
2956 if (i < bp->tx_nr_rings_xdp)
2957 continue;
2958 if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1))
2959 j++;
2960 }
2961 return 0;
2962 }
2963
2964 static void bnxt_free_cp_rings(struct bnxt *bp)
2965 {
2966 int i;
2967
2968 if (!bp->bnapi)
2969 return;
2970
2971 for (i = 0; i < bp->cp_nr_rings; i++) {
2972 struct bnxt_napi *bnapi = bp->bnapi[i];
2973 struct bnxt_cp_ring_info *cpr;
2974 struct bnxt_ring_struct *ring;
2975 int j;
2976
2977 if (!bnapi)
2978 continue;
2979
2980 cpr = &bnapi->cp_ring;
2981 ring = &cpr->cp_ring_struct;
2982
2983 bnxt_free_ring(bp, &ring->ring_mem);
2984
2985 for (j = 0; j < 2; j++) {
2986 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];
2987
2988 if (cpr2) {
2989 ring = &cpr2->cp_ring_struct;
2990 bnxt_free_ring(bp, &ring->ring_mem);
2991 kfree(cpr2);
2992 cpr->cp_ring_arr[j] = NULL;
2993 }
2994 }
2995 }
2996 }
2997
2998 static struct bnxt_cp_ring_info *bnxt_alloc_cp_sub_ring(struct bnxt *bp)
2999 {
3000 struct bnxt_ring_mem_info *rmem;
3001 struct bnxt_ring_struct *ring;
3002 struct bnxt_cp_ring_info *cpr;
3003 int rc;
3004
3005 cpr = kzalloc(sizeof(*cpr), GFP_KERNEL);
3006 if (!cpr)
3007 return NULL;
3008
3009 ring = &cpr->cp_ring_struct;
3010 rmem = &ring->ring_mem;
3011 rmem->nr_pages = bp->cp_nr_pages;
3012 rmem->page_size = HW_CMPD_RING_SIZE;
3013 rmem->pg_arr = (void **)cpr->cp_desc_ring;
3014 rmem->dma_arr = cpr->cp_desc_mapping;
3015 rmem->flags = BNXT_RMEM_RING_PTE_FLAG;
3016 rc = bnxt_alloc_ring(bp, rmem);
3017 if (rc) {
3018 bnxt_free_ring(bp, rmem);
3019 kfree(cpr);
3020 cpr = NULL;
3021 }
3022 return cpr;
3023 }
3024
3025 static int bnxt_alloc_cp_rings(struct bnxt *bp)
3026 {
3027 bool sh = !!(bp->flags & BNXT_FLAG_SHARED_RINGS);
3028 int i, rc, ulp_base_vec, ulp_msix;
3029
3030 ulp_msix = bnxt_get_ulp_msix_num(bp);
3031 ulp_base_vec = bnxt_get_ulp_msix_base(bp);
3032 for (i = 0; i < bp->cp_nr_rings; i++) {
3033 struct bnxt_napi *bnapi = bp->bnapi[i];
3034 struct bnxt_cp_ring_info *cpr;
3035 struct bnxt_ring_struct *ring;
3036
3037 if (!bnapi)
3038 continue;
3039
3040 cpr = &bnapi->cp_ring;
3041 cpr->bnapi = bnapi;
3042 ring = &cpr->cp_ring_struct;
3043
3044 rc = bnxt_alloc_ring(bp, &ring->ring_mem);
3045 if (rc)
3046 return rc;
3047
3048 if (ulp_msix && i >= ulp_base_vec)
3049 ring->map_idx = i + ulp_msix;
3050 else
3051 ring->map_idx = i;
3052
3053 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
3054 continue;
3055
3056 if (i < bp->rx_nr_rings) {
3057 struct bnxt_cp_ring_info *cpr2 =
3058 bnxt_alloc_cp_sub_ring(bp);
3059
3060 cpr->cp_ring_arr[BNXT_RX_HDL] = cpr2;
3061 if (!cpr2)
3062 return -ENOMEM;
3063 cpr2->bnapi = bnapi;
3064 }
3065 if ((sh && i < bp->tx_nr_rings) ||
3066 (!sh && i >= bp->rx_nr_rings)) {
3067 struct bnxt_cp_ring_info *cpr2 =
3068 bnxt_alloc_cp_sub_ring(bp);
3069
3070 cpr->cp_ring_arr[BNXT_TX_HDL] = cpr2;
3071 if (!cpr2)
3072 return -ENOMEM;
3073 cpr2->bnapi = bnapi;
3074 }
3075 }
3076 return 0;
3077 }
3078
3079 static void bnxt_init_ring_struct(struct bnxt *bp)
3080 {
3081 int i;
3082
3083 for (i = 0; i < bp->cp_nr_rings; i++) {
3084 struct bnxt_napi *bnapi = bp->bnapi[i];
3085 struct bnxt_ring_mem_info *rmem;
3086 struct bnxt_cp_ring_info *cpr;
3087 struct bnxt_rx_ring_info *rxr;
3088 struct bnxt_tx_ring_info *txr;
3089 struct bnxt_ring_struct *ring;
3090
3091 if (!bnapi)
3092 continue;
3093
3094 cpr = &bnapi->cp_ring;
3095 ring = &cpr->cp_ring_struct;
3096 rmem = &ring->ring_mem;
3097 rmem->nr_pages = bp->cp_nr_pages;
3098 rmem->page_size = HW_CMPD_RING_SIZE;
3099 rmem->pg_arr = (void **)cpr->cp_desc_ring;
3100 rmem->dma_arr = cpr->cp_desc_mapping;
3101 rmem->vmem_size = 0;
3102
3103 rxr = bnapi->rx_ring;
3104 if (!rxr)
3105 goto skip_rx;
3106
3107 ring = &rxr->rx_ring_struct;
3108 rmem = &ring->ring_mem;
3109 rmem->nr_pages = bp->rx_nr_pages;
3110 rmem->page_size = HW_RXBD_RING_SIZE;
3111 rmem->pg_arr = (void **)rxr->rx_desc_ring;
3112 rmem->dma_arr = rxr->rx_desc_mapping;
3113 rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages;
3114 rmem->vmem = (void **)&rxr->rx_buf_ring;
3115
3116 ring = &rxr->rx_agg_ring_struct;
3117 rmem = &ring->ring_mem;
3118 rmem->nr_pages = bp->rx_agg_nr_pages;
3119 rmem->page_size = HW_RXBD_RING_SIZE;
3120 rmem->pg_arr = (void **)rxr->rx_agg_desc_ring;
3121 rmem->dma_arr = rxr->rx_agg_desc_mapping;
3122 rmem->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages;
3123 rmem->vmem = (void **)&rxr->rx_agg_ring;
3124
3125 skip_rx:
3126 txr = bnapi->tx_ring;
3127 if (!txr)
3128 continue;
3129
3130 ring = &txr->tx_ring_struct;
3131 rmem = &ring->ring_mem;
3132 rmem->nr_pages = bp->tx_nr_pages;
3133 rmem->page_size = HW_RXBD_RING_SIZE;
3134 rmem->pg_arr = (void **)txr->tx_desc_ring;
3135 rmem->dma_arr = txr->tx_desc_mapping;
3136 rmem->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages;
3137 rmem->vmem = (void **)&txr->tx_buf_ring;
3138 }
3139 }
3140
3141 static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type)
3142 {
3143 int i;
3144 u32 prod;
3145 struct rx_bd **rx_buf_ring;
3146
3147 rx_buf_ring = (struct rx_bd **)ring->ring_mem.pg_arr;
3148 for (i = 0, prod = 0; i < ring->ring_mem.nr_pages; i++) {
3149 int j;
3150 struct rx_bd *rxbd;
3151
3152 rxbd = rx_buf_ring[i];
3153 if (!rxbd)
3154 continue;
3155
3156 for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) {
3157 rxbd->rx_bd_len_flags_type = cpu_to_le32(type);
3158 rxbd->rx_bd_opaque = prod;
3159 }
3160 }
3161 }
3162
3163 static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr)
3164 {
3165 struct net_device *dev = bp->dev;
3166 struct bnxt_rx_ring_info *rxr;
3167 struct bnxt_ring_struct *ring;
3168 u32 prod, type;
3169 int i;
3170
3171 type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) |
3172 RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP;
3173
3174 if (NET_IP_ALIGN == 2)
3175 type |= RX_BD_FLAGS_SOP;
3176
3177 rxr = &bp->rx_ring[ring_nr];
3178 ring = &rxr->rx_ring_struct;
3179 bnxt_init_rxbd_pages(ring, type);
3180
3181 if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) {
3182 bpf_prog_add(bp->xdp_prog, 1);
3183 rxr->xdp_prog = bp->xdp_prog;
3184 }
3185 prod = rxr->rx_prod;
3186 for (i = 0; i < bp->rx_ring_size; i++) {
3187 if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL) != 0) {
3188 netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n",
3189 ring_nr, i, bp->rx_ring_size);
3190 break;
3191 }
3192 prod = NEXT_RX(prod);
3193 }
3194 rxr->rx_prod = prod;
3195 ring->fw_ring_id = INVALID_HW_RING_ID;
3196
3197 ring = &rxr->rx_agg_ring_struct;
3198 ring->fw_ring_id = INVALID_HW_RING_ID;
3199
3200 if (!(bp->flags & BNXT_FLAG_AGG_RINGS))
3201 return 0;
3202
3203 type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) |
3204 RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP;
3205
3206 bnxt_init_rxbd_pages(ring, type);
3207
3208 prod = rxr->rx_agg_prod;
3209 for (i = 0; i < bp->rx_agg_ring_size; i++) {
3210 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL) != 0) {
3211 netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n",
3212 ring_nr, i, bp->rx_ring_size);
3213 break;
3214 }
3215 prod = NEXT_RX_AGG(prod);
3216 }
3217 rxr->rx_agg_prod = prod;
3218
3219 if (bp->flags & BNXT_FLAG_TPA) {
3220 if (rxr->rx_tpa) {
3221 u8 *data;
3222 dma_addr_t mapping;
3223
3224 for (i = 0; i < bp->max_tpa; i++) {
3225 data = __bnxt_alloc_rx_data(bp, &mapping,
3226 GFP_KERNEL);
3227 if (!data)
3228 return -ENOMEM;
3229
3230 rxr->rx_tpa[i].data = data;
3231 rxr->rx_tpa[i].data_ptr = data + bp->rx_offset;
3232 rxr->rx_tpa[i].mapping = mapping;
3233 }
3234 } else {
3235 netdev_err(bp->dev, "No resource allocated for LRO/GRO\n");
3236 return -ENOMEM;
3237 }
3238 }
3239
3240 return 0;
3241 }
3242
3243 static void bnxt_init_cp_rings(struct bnxt *bp)
3244 {
3245 int i, j;
3246
3247 for (i = 0; i < bp->cp_nr_rings; i++) {
3248 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
3249 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
3250
3251 ring->fw_ring_id = INVALID_HW_RING_ID;
3252 cpr->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks;
3253 cpr->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs;
3254 for (j = 0; j < 2; j++) {
3255 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];
3256
3257 if (!cpr2)
3258 continue;
3259
3260 ring = &cpr2->cp_ring_struct;
3261 ring->fw_ring_id = INVALID_HW_RING_ID;
3262 cpr2->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks;
3263 cpr2->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs;
3264 }
3265 }
3266 }
3267
3268 static int bnxt_init_rx_rings(struct bnxt *bp)
3269 {
3270 int i, rc = 0;
3271
3272 if (BNXT_RX_PAGE_MODE(bp)) {
3273 bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM;
3274 bp->rx_dma_offset = XDP_PACKET_HEADROOM;
3275 } else {
3276 bp->rx_offset = BNXT_RX_OFFSET;
3277 bp->rx_dma_offset = BNXT_RX_DMA_OFFSET;
3278 }
3279
3280 for (i = 0; i < bp->rx_nr_rings; i++) {
3281 rc = bnxt_init_one_rx_ring(bp, i);
3282 if (rc)
3283 break;
3284 }
3285
3286 return rc;
3287 }
3288
3289 static int bnxt_init_tx_rings(struct bnxt *bp)
3290 {
3291 u16 i;
3292
3293 bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2,
3294 MAX_SKB_FRAGS + 1);
3295
3296 for (i = 0; i < bp->tx_nr_rings; i++) {
3297 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
3298 struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
3299
3300 ring->fw_ring_id = INVALID_HW_RING_ID;
3301 }
3302
3303 return 0;
3304 }
3305
3306 static void bnxt_free_ring_grps(struct bnxt *bp)
3307 {
3308 kfree(bp->grp_info);
3309 bp->grp_info = NULL;
3310 }
3311
3312 static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init)
3313 {
3314 int i;
3315
3316 if (irq_re_init) {
3317 bp->grp_info = kcalloc(bp->cp_nr_rings,
3318 sizeof(struct bnxt_ring_grp_info),
3319 GFP_KERNEL);
3320 if (!bp->grp_info)
3321 return -ENOMEM;
3322 }
3323 for (i = 0; i < bp->cp_nr_rings; i++) {
3324 if (irq_re_init)
3325 bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID;
3326 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
3327 bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID;
3328 bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID;
3329 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
3330 }
3331 return 0;
3332 }
3333
3334 static void bnxt_free_vnics(struct bnxt *bp)
3335 {
3336 kfree(bp->vnic_info);
3337 bp->vnic_info = NULL;
3338 bp->nr_vnics = 0;
3339 }
3340
3341 static int bnxt_alloc_vnics(struct bnxt *bp)
3342 {
3343 int num_vnics = 1;
3344
3345 #ifdef CONFIG_RFS_ACCEL
3346 if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS)
3347 num_vnics += bp->rx_nr_rings;
3348 #endif
3349
3350 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
3351 num_vnics++;
3352
3353 bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info),
3354 GFP_KERNEL);
3355 if (!bp->vnic_info)
3356 return -ENOMEM;
3357
3358 bp->nr_vnics = num_vnics;
3359 return 0;
3360 }
3361
3362 static void bnxt_init_vnics(struct bnxt *bp)
3363 {
3364 int i;
3365
3366 for (i = 0; i < bp->nr_vnics; i++) {
3367 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
3368 int j;
3369
3370 vnic->fw_vnic_id = INVALID_HW_RING_ID;
3371 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++)
3372 vnic->fw_rss_cos_lb_ctx[j] = INVALID_HW_RING_ID;
3373
3374 vnic->fw_l2_ctx_id = INVALID_HW_RING_ID;
3375
3376 if (bp->vnic_info[i].rss_hash_key) {
3377 if (i == 0)
3378 prandom_bytes(vnic->rss_hash_key,
3379 HW_HASH_KEY_SIZE);
3380 else
3381 memcpy(vnic->rss_hash_key,
3382 bp->vnic_info[0].rss_hash_key,
3383 HW_HASH_KEY_SIZE);
3384 }
3385 }
3386 }
3387
3388 static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg)
3389 {
3390 int pages;
3391
3392 pages = ring_size / desc_per_pg;
3393
3394 if (!pages)
3395 return 1;
3396
3397 pages++;
3398
3399 while (pages & (pages - 1))
3400 pages++;
3401
3402 return pages;
3403 }
3404
3405 void bnxt_set_tpa_flags(struct bnxt *bp)
3406 {
3407 bp->flags &= ~BNXT_FLAG_TPA;
3408 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
3409 return;
3410 if (bp->dev->features & NETIF_F_LRO)
3411 bp->flags |= BNXT_FLAG_LRO;
3412 else if (bp->dev->features & NETIF_F_GRO_HW)
3413 bp->flags |= BNXT_FLAG_GRO;
3414 }
3415
3416 /* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must
3417 * be set on entry.
3418 */
3419 void bnxt_set_ring_params(struct bnxt *bp)
3420 {
3421 u32 ring_size, rx_size, rx_space;
3422 u32 agg_factor = 0, agg_ring_size = 0;
3423
3424 /* 8 for CRC and VLAN */
3425 rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8);
3426
3427 rx_space = rx_size + NET_SKB_PAD +
3428 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
3429
3430 bp->rx_copy_thresh = BNXT_RX_COPY_THRESH;
3431 ring_size = bp->rx_ring_size;
3432 bp->rx_agg_ring_size = 0;
3433 bp->rx_agg_nr_pages = 0;
3434
3435 if (bp->flags & BNXT_FLAG_TPA)
3436 agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE);
3437
3438 bp->flags &= ~BNXT_FLAG_JUMBO;
3439 if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) {
3440 u32 jumbo_factor;
3441
3442 bp->flags |= BNXT_FLAG_JUMBO;
3443 jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
3444 if (jumbo_factor > agg_factor)
3445 agg_factor = jumbo_factor;
3446 }
3447 agg_ring_size = ring_size * agg_factor;
3448
3449 if (agg_ring_size) {
3450 bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size,
3451 RX_DESC_CNT);
3452 if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) {
3453 u32 tmp = agg_ring_size;
3454
3455 bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES;
3456 agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1;
3457 netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n",
3458 tmp, agg_ring_size);
3459 }
3460 bp->rx_agg_ring_size = agg_ring_size;
3461 bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1;
3462 rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN);
3463 rx_space = rx_size + NET_SKB_PAD +
3464 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
3465 }
3466
3467 bp->rx_buf_use_size = rx_size;
3468 bp->rx_buf_size = rx_space;
3469
3470 bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT);
3471 bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1;
3472
3473 ring_size = bp->tx_ring_size;
3474 bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT);
3475 bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1;
3476
3477 ring_size = bp->rx_ring_size * (2 + agg_factor) + bp->tx_ring_size;
3478 bp->cp_ring_size = ring_size;
3479
3480 bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT);
3481 if (bp->cp_nr_pages > MAX_CP_PAGES) {
3482 bp->cp_nr_pages = MAX_CP_PAGES;
3483 bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1;
3484 netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n",
3485 ring_size, bp->cp_ring_size);
3486 }
3487 bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT;
3488 bp->cp_ring_mask = bp->cp_bit - 1;
3489 }
3490
3491 /* Changing allocation mode of RX rings.
3492 * TODO: Update when extending xdp_rxq_info to support allocation modes.
3493 */
3494 int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
3495 {
3496 if (page_mode) {
3497 if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU)
3498 return -EOPNOTSUPP;
3499 bp->dev->max_mtu =
3500 min_t(u16, bp->max_mtu, BNXT_MAX_PAGE_MODE_MTU);
3501 bp->flags &= ~BNXT_FLAG_AGG_RINGS;
3502 bp->flags |= BNXT_FLAG_NO_AGG_RINGS | BNXT_FLAG_RX_PAGE_MODE;
3503 bp->rx_dir = DMA_BIDIRECTIONAL;
3504 bp->rx_skb_func = bnxt_rx_page_skb;
3505 /* Disable LRO or GRO_HW */
3506 netdev_update_features(bp->dev);
3507 } else {
3508 bp->dev->max_mtu = bp->max_mtu;
3509 bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE;
3510 bp->rx_dir = DMA_FROM_DEVICE;
3511 bp->rx_skb_func = bnxt_rx_skb;
3512 }
3513 return 0;
3514 }
3515
3516 static void bnxt_free_vnic_attributes(struct bnxt *bp)
3517 {
3518 int i;
3519 struct bnxt_vnic_info *vnic;
3520 struct pci_dev *pdev = bp->pdev;
3521
3522 if (!bp->vnic_info)
3523 return;
3524
3525 for (i = 0; i < bp->nr_vnics; i++) {
3526 vnic = &bp->vnic_info[i];
3527
3528 kfree(vnic->fw_grp_ids);
3529 vnic->fw_grp_ids = NULL;
3530
3531 kfree(vnic->uc_list);
3532 vnic->uc_list = NULL;
3533
3534 if (vnic->mc_list) {
3535 dma_free_coherent(&pdev->dev, vnic->mc_list_size,
3536 vnic->mc_list, vnic->mc_list_mapping);
3537 vnic->mc_list = NULL;
3538 }
3539
3540 if (vnic->rss_table) {
3541 dma_free_coherent(&pdev->dev, PAGE_SIZE,
3542 vnic->rss_table,
3543 vnic->rss_table_dma_addr);
3544 vnic->rss_table = NULL;
3545 }
3546
3547 vnic->rss_hash_key = NULL;
3548 vnic->flags = 0;
3549 }
3550 }
3551
3552 static int bnxt_alloc_vnic_attributes(struct bnxt *bp)
3553 {
3554 int i, rc = 0, size;
3555 struct bnxt_vnic_info *vnic;
3556 struct pci_dev *pdev = bp->pdev;
3557 int max_rings;
3558
3559 for (i = 0; i < bp->nr_vnics; i++) {
3560 vnic = &bp->vnic_info[i];
3561
3562 if (vnic->flags & BNXT_VNIC_UCAST_FLAG) {
3563 int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN;
3564
3565 if (mem_size > 0) {
3566 vnic->uc_list = kmalloc(mem_size, GFP_KERNEL);
3567 if (!vnic->uc_list) {
3568 rc = -ENOMEM;
3569 goto out;
3570 }
3571 }
3572 }
3573
3574 if (vnic->flags & BNXT_VNIC_MCAST_FLAG) {
3575 vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN;
3576 vnic->mc_list =
3577 dma_alloc_coherent(&pdev->dev,
3578 vnic->mc_list_size,
3579 &vnic->mc_list_mapping,
3580 GFP_KERNEL);
3581 if (!vnic->mc_list) {
3582 rc = -ENOMEM;
3583 goto out;
3584 }
3585 }
3586
3587 if (bp->flags & BNXT_FLAG_CHIP_P5)
3588 goto vnic_skip_grps;
3589
3590 if (vnic->flags & BNXT_VNIC_RSS_FLAG)
3591 max_rings = bp->rx_nr_rings;
3592 else
3593 max_rings = 1;
3594
3595 vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL);
3596 if (!vnic->fw_grp_ids) {
3597 rc = -ENOMEM;
3598 goto out;
3599 }
3600 vnic_skip_grps:
3601 if ((bp->flags & BNXT_FLAG_NEW_RSS_CAP) &&
3602 !(vnic->flags & BNXT_VNIC_RSS_FLAG))
3603 continue;
3604
3605 /* Allocate rss table and hash key */
3606 vnic->rss_table = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
3607 &vnic->rss_table_dma_addr,
3608 GFP_KERNEL);
3609 if (!vnic->rss_table) {
3610 rc = -ENOMEM;
3611 goto out;
3612 }
3613
3614 size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16));
3615
3616 vnic->rss_hash_key = ((void *)vnic->rss_table) + size;
3617 vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size;
3618 }
3619 return 0;
3620
3621 out:
3622 return rc;
3623 }
3624
3625 static void bnxt_free_hwrm_resources(struct bnxt *bp)
3626 {
3627 struct pci_dev *pdev = bp->pdev;
3628
3629 if (bp->hwrm_cmd_resp_addr) {
3630 dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr,
3631 bp->hwrm_cmd_resp_dma_addr);
3632 bp->hwrm_cmd_resp_addr = NULL;
3633 }
3634
3635 if (bp->hwrm_cmd_kong_resp_addr) {
3636 dma_free_coherent(&pdev->dev, PAGE_SIZE,
3637 bp->hwrm_cmd_kong_resp_addr,
3638 bp->hwrm_cmd_kong_resp_dma_addr);
3639 bp->hwrm_cmd_kong_resp_addr = NULL;
3640 }
3641 }
3642
3643 static int bnxt_alloc_kong_hwrm_resources(struct bnxt *bp)
3644 {
3645 struct pci_dev *pdev = bp->pdev;
3646
3647 if (bp->hwrm_cmd_kong_resp_addr)
3648 return 0;
3649
3650 bp->hwrm_cmd_kong_resp_addr =
3651 dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
3652 &bp->hwrm_cmd_kong_resp_dma_addr,
3653 GFP_KERNEL);
3654 if (!bp->hwrm_cmd_kong_resp_addr)
3655 return -ENOMEM;
3656
3657 return 0;
3658 }
3659
3660 static int bnxt_alloc_hwrm_resources(struct bnxt *bp)
3661 {
3662 struct pci_dev *pdev = bp->pdev;
3663
3664 bp->hwrm_cmd_resp_addr = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
3665 &bp->hwrm_cmd_resp_dma_addr,
3666 GFP_KERNEL);
3667 if (!bp->hwrm_cmd_resp_addr)
3668 return -ENOMEM;
3669
3670 return 0;
3671 }
3672
3673 static void bnxt_free_hwrm_short_cmd_req(struct bnxt *bp)
3674 {
3675 if (bp->hwrm_short_cmd_req_addr) {
3676 struct pci_dev *pdev = bp->pdev;
3677
3678 dma_free_coherent(&pdev->dev, bp->hwrm_max_ext_req_len,
3679 bp->hwrm_short_cmd_req_addr,
3680 bp->hwrm_short_cmd_req_dma_addr);
3681 bp->hwrm_short_cmd_req_addr = NULL;
3682 }
3683 }
3684
3685 static int bnxt_alloc_hwrm_short_cmd_req(struct bnxt *bp)
3686 {
3687 struct pci_dev *pdev = bp->pdev;
3688
3689 if (bp->hwrm_short_cmd_req_addr)
3690 return 0;
3691
3692 bp->hwrm_short_cmd_req_addr =
3693 dma_alloc_coherent(&pdev->dev, bp->hwrm_max_ext_req_len,
3694 &bp->hwrm_short_cmd_req_dma_addr,
3695 GFP_KERNEL);
3696 if (!bp->hwrm_short_cmd_req_addr)
3697 return -ENOMEM;
3698
3699 return 0;
3700 }
3701
3702 static void bnxt_free_port_stats(struct bnxt *bp)
3703 {
3704 struct pci_dev *pdev = bp->pdev;
3705
3706 bp->flags &= ~BNXT_FLAG_PORT_STATS;
3707 bp->flags &= ~BNXT_FLAG_PORT_STATS_EXT;
3708
3709 if (bp->hw_rx_port_stats) {
3710 dma_free_coherent(&pdev->dev, bp->hw_port_stats_size,
3711 bp->hw_rx_port_stats,
3712 bp->hw_rx_port_stats_map);
3713 bp->hw_rx_port_stats = NULL;
3714 }
3715
3716 if (bp->hw_tx_port_stats_ext) {
3717 dma_free_coherent(&pdev->dev, sizeof(struct tx_port_stats_ext),
3718 bp->hw_tx_port_stats_ext,
3719 bp->hw_tx_port_stats_ext_map);
3720 bp->hw_tx_port_stats_ext = NULL;
3721 }
3722
3723 if (bp->hw_rx_port_stats_ext) {
3724 dma_free_coherent(&pdev->dev, sizeof(struct rx_port_stats_ext),
3725 bp->hw_rx_port_stats_ext,
3726 bp->hw_rx_port_stats_ext_map);
3727 bp->hw_rx_port_stats_ext = NULL;
3728 }
3729
3730 if (bp->hw_pcie_stats) {
3731 dma_free_coherent(&pdev->dev, sizeof(struct pcie_ctx_hw_stats),
3732 bp->hw_pcie_stats, bp->hw_pcie_stats_map);
3733 bp->hw_pcie_stats = NULL;
3734 }
3735 }
3736
3737 static void bnxt_free_ring_stats(struct bnxt *bp)
3738 {
3739 struct pci_dev *pdev = bp->pdev;
3740 int size, i;
3741
3742 if (!bp->bnapi)
3743 return;
3744
3745 size = bp->hw_ring_stats_size;
3746
3747 for (i = 0; i < bp->cp_nr_rings; i++) {
3748 struct bnxt_napi *bnapi = bp->bnapi[i];
3749 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
3750
3751 if (cpr->hw_stats) {
3752 dma_free_coherent(&pdev->dev, size, cpr->hw_stats,
3753 cpr->hw_stats_map);
3754 cpr->hw_stats = NULL;
3755 }
3756 }
3757 }
3758
3759 static int bnxt_alloc_stats(struct bnxt *bp)
3760 {
3761 u32 size, i;
3762 struct pci_dev *pdev = bp->pdev;
3763
3764 size = bp->hw_ring_stats_size;
3765
3766 for (i = 0; i < bp->cp_nr_rings; i++) {
3767 struct bnxt_napi *bnapi = bp->bnapi[i];
3768 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
3769
3770 cpr->hw_stats = dma_alloc_coherent(&pdev->dev, size,
3771 &cpr->hw_stats_map,
3772 GFP_KERNEL);
3773 if (!cpr->hw_stats)
3774 return -ENOMEM;
3775
3776 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
3777 }
3778
3779 if (BNXT_VF(bp) || bp->chip_num == CHIP_NUM_58700)
3780 return 0;
3781
3782 if (bp->hw_rx_port_stats)
3783 goto alloc_ext_stats;
3784
3785 bp->hw_port_stats_size = sizeof(struct rx_port_stats) +
3786 sizeof(struct tx_port_stats) + 1024;
3787
3788 bp->hw_rx_port_stats =
3789 dma_alloc_coherent(&pdev->dev, bp->hw_port_stats_size,
3790 &bp->hw_rx_port_stats_map,
3791 GFP_KERNEL);
3792 if (!bp->hw_rx_port_stats)
3793 return -ENOMEM;
3794
3795 bp->hw_tx_port_stats = (void *)(bp->hw_rx_port_stats + 1) + 512;
3796 bp->hw_tx_port_stats_map = bp->hw_rx_port_stats_map +
3797 sizeof(struct rx_port_stats) + 512;
3798 bp->flags |= BNXT_FLAG_PORT_STATS;
3799
3800 alloc_ext_stats:
3801 /* Display extended statistics only if FW supports it */
3802 if (bp->hwrm_spec_code < 0x10804 || bp->hwrm_spec_code == 0x10900)
3803 if (!(bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED))
3804 return 0;
3805
3806 if (bp->hw_rx_port_stats_ext)
3807 goto alloc_tx_ext_stats;
3808
3809 bp->hw_rx_port_stats_ext =
3810 dma_alloc_coherent(&pdev->dev, sizeof(struct rx_port_stats_ext),
3811 &bp->hw_rx_port_stats_ext_map, GFP_KERNEL);
3812 if (!bp->hw_rx_port_stats_ext)
3813 return 0;
3814
3815 alloc_tx_ext_stats:
3816 if (bp->hw_tx_port_stats_ext)
3817 goto alloc_pcie_stats;
3818
3819 if (bp->hwrm_spec_code >= 0x10902 ||
3820 (bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) {
3821 bp->hw_tx_port_stats_ext =
3822 dma_alloc_coherent(&pdev->dev,
3823 sizeof(struct tx_port_stats_ext),
3824 &bp->hw_tx_port_stats_ext_map,
3825 GFP_KERNEL);
3826 }
3827 bp->flags |= BNXT_FLAG_PORT_STATS_EXT;
3828
3829 alloc_pcie_stats:
3830 if (bp->hw_pcie_stats ||
3831 !(bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED))
3832 return 0;
3833
3834 bp->hw_pcie_stats =
3835 dma_alloc_coherent(&pdev->dev, sizeof(struct pcie_ctx_hw_stats),
3836 &bp->hw_pcie_stats_map, GFP_KERNEL);
3837 if (!bp->hw_pcie_stats)
3838 return 0;
3839
3840 bp->flags |= BNXT_FLAG_PCIE_STATS;
3841 return 0;
3842 }
3843
3844 static void bnxt_clear_ring_indices(struct bnxt *bp)
3845 {
3846 int i;
3847
3848 if (!bp->bnapi)
3849 return;
3850
3851 for (i = 0; i < bp->cp_nr_rings; i++) {
3852 struct bnxt_napi *bnapi = bp->bnapi[i];
3853 struct bnxt_cp_ring_info *cpr;
3854 struct bnxt_rx_ring_info *rxr;
3855 struct bnxt_tx_ring_info *txr;
3856
3857 if (!bnapi)
3858 continue;
3859
3860 cpr = &bnapi->cp_ring;
3861 cpr->cp_raw_cons = 0;
3862
3863 txr = bnapi->tx_ring;
3864 if (txr) {
3865 txr->tx_prod = 0;
3866 txr->tx_cons = 0;
3867 }
3868
3869 rxr = bnapi->rx_ring;
3870 if (rxr) {
3871 rxr->rx_prod = 0;
3872 rxr->rx_agg_prod = 0;
3873 rxr->rx_sw_agg_prod = 0;
3874 rxr->rx_next_cons = 0;
3875 }
3876 }
3877 }
3878
3879 static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit)
3880 {
3881 #ifdef CONFIG_RFS_ACCEL
3882 int i;
3883
3884 /* Under rtnl_lock and all our NAPIs have been disabled. It's
3885 * safe to delete the hash table.
3886 */
3887 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
3888 struct hlist_head *head;
3889 struct hlist_node *tmp;
3890 struct bnxt_ntuple_filter *fltr;
3891
3892 head = &bp->ntp_fltr_hash_tbl[i];
3893 hlist_for_each_entry_safe(fltr, tmp, head, hash) {
3894 hlist_del(&fltr->hash);
3895 kfree(fltr);
3896 }
3897 }
3898 if (irq_reinit) {
3899 kfree(bp->ntp_fltr_bmap);
3900 bp->ntp_fltr_bmap = NULL;
3901 }
3902 bp->ntp_fltr_count = 0;
3903 #endif
3904 }
3905
3906 static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
3907 {
3908 #ifdef CONFIG_RFS_ACCEL
3909 int i, rc = 0;
3910
3911 if (!(bp->flags & BNXT_FLAG_RFS))
3912 return 0;
3913
3914 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++)
3915 INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);
3916
3917 bp->ntp_fltr_count = 0;
3918 bp->ntp_fltr_bmap = kcalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
3919 sizeof(long),
3920 GFP_KERNEL);
3921
3922 if (!bp->ntp_fltr_bmap)
3923 rc = -ENOMEM;
3924
3925 return rc;
3926 #else
3927 return 0;
3928 #endif
3929 }
3930
3931 static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init)
3932 {
3933 bnxt_free_vnic_attributes(bp);
3934 bnxt_free_tx_rings(bp);
3935 bnxt_free_rx_rings(bp);
3936 bnxt_free_cp_rings(bp);
3937 bnxt_free_ntp_fltrs(bp, irq_re_init);
3938 if (irq_re_init) {
3939 bnxt_free_ring_stats(bp);
3940 bnxt_free_ring_grps(bp);
3941 bnxt_free_vnics(bp);
3942 kfree(bp->tx_ring_map);
3943 bp->tx_ring_map = NULL;
3944 kfree(bp->tx_ring);
3945 bp->tx_ring = NULL;
3946 kfree(bp->rx_ring);
3947 bp->rx_ring = NULL;
3948 kfree(bp->bnapi);
3949 bp->bnapi = NULL;
3950 } else {
3951 bnxt_clear_ring_indices(bp);
3952 }
3953 }
3954
3955 static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
3956 {
3957 int i, j, rc, size, arr_size;
3958 void *bnapi;
3959
3960 if (irq_re_init) {
3961 /* Allocate bnapi mem pointer array and mem block for
3962 * all queues
3963 */
3964 arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) *
3965 bp->cp_nr_rings);
3966 size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi));
3967 bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL);
3968 if (!bnapi)
3969 return -ENOMEM;
3970
3971 bp->bnapi = bnapi;
3972 bnapi += arr_size;
3973 for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) {
3974 bp->bnapi[i] = bnapi;
3975 bp->bnapi[i]->index = i;
3976 bp->bnapi[i]->bp = bp;
3977 if (bp->flags & BNXT_FLAG_CHIP_P5) {
3978 struct bnxt_cp_ring_info *cpr =
3979 &bp->bnapi[i]->cp_ring;
3980
3981 cpr->cp_ring_struct.ring_mem.flags =
3982 BNXT_RMEM_RING_PTE_FLAG;
3983 }
3984 }
3985
3986 bp->rx_ring = kcalloc(bp->rx_nr_rings,
3987 sizeof(struct bnxt_rx_ring_info),
3988 GFP_KERNEL);
3989 if (!bp->rx_ring)
3990 return -ENOMEM;
3991
3992 for (i = 0; i < bp->rx_nr_rings; i++) {
3993 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
3994
3995 if (bp->flags & BNXT_FLAG_CHIP_P5) {
3996 rxr->rx_ring_struct.ring_mem.flags =
3997 BNXT_RMEM_RING_PTE_FLAG;
3998 rxr->rx_agg_ring_struct.ring_mem.flags =
3999 BNXT_RMEM_RING_PTE_FLAG;
4000 }
4001 rxr->bnapi = bp->bnapi[i];
4002 bp->bnapi[i]->rx_ring = &bp->rx_ring[i];
4003 }
4004
4005 bp->tx_ring = kcalloc(bp->tx_nr_rings,
4006 sizeof(struct bnxt_tx_ring_info),
4007 GFP_KERNEL);
4008 if (!bp->tx_ring)
4009 return -ENOMEM;
4010
4011 bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16),
4012 GFP_KERNEL);
4013
4014 if (!bp->tx_ring_map)
4015 return -ENOMEM;
4016
4017 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
4018 j = 0;
4019 else
4020 j = bp->rx_nr_rings;
4021
4022 for (i = 0; i < bp->tx_nr_rings; i++, j++) {
4023 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
4024
4025 if (bp->flags & BNXT_FLAG_CHIP_P5)
4026 txr->tx_ring_struct.ring_mem.flags =
4027 BNXT_RMEM_RING_PTE_FLAG;
4028 txr->bnapi = bp->bnapi[j];
4029 bp->bnapi[j]->tx_ring = txr;
4030 bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i;
4031 if (i >= bp->tx_nr_rings_xdp) {
4032 txr->txq_index = i - bp->tx_nr_rings_xdp;
4033 bp->bnapi[j]->tx_int = bnxt_tx_int;
4034 } else {
4035 bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP;
4036 bp->bnapi[j]->tx_int = bnxt_tx_int_xdp;
4037 }
4038 }
4039
4040 rc = bnxt_alloc_stats(bp);
4041 if (rc)
4042 goto alloc_mem_err;
4043
4044 rc = bnxt_alloc_ntp_fltrs(bp);
4045 if (rc)
4046 goto alloc_mem_err;
4047
4048 rc = bnxt_alloc_vnics(bp);
4049 if (rc)
4050 goto alloc_mem_err;
4051 }
4052
4053 bnxt_init_ring_struct(bp);
4054
4055 rc = bnxt_alloc_rx_rings(bp);
4056 if (rc)
4057 goto alloc_mem_err;
4058
4059 rc = bnxt_alloc_tx_rings(bp);
4060 if (rc)
4061 goto alloc_mem_err;
4062
4063 rc = bnxt_alloc_cp_rings(bp);
4064 if (rc)
4065 goto alloc_mem_err;
4066
4067 bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG |
4068 BNXT_VNIC_UCAST_FLAG;
4069 rc = bnxt_alloc_vnic_attributes(bp);
4070 if (rc)
4071 goto alloc_mem_err;
4072 return 0;
4073
4074 alloc_mem_err:
4075 bnxt_free_mem(bp, true);
4076 return rc;
4077 }
4078
4079 static void bnxt_disable_int(struct bnxt *bp)
4080 {
4081 int i;
4082
4083 if (!bp->bnapi)
4084 return;
4085
4086 for (i = 0; i < bp->cp_nr_rings; i++) {
4087 struct bnxt_napi *bnapi = bp->bnapi[i];
4088 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
4089 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
4090
4091 if (ring->fw_ring_id != INVALID_HW_RING_ID)
4092 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons);
4093 }
4094 }
4095
4096 static int bnxt_cp_num_to_irq_num(struct bnxt *bp, int n)
4097 {
4098 struct bnxt_napi *bnapi = bp->bnapi[n];
4099 struct bnxt_cp_ring_info *cpr;
4100
4101 cpr = &bnapi->cp_ring;
4102 return cpr->cp_ring_struct.map_idx;
4103 }
4104
4105 static void bnxt_disable_int_sync(struct bnxt *bp)
4106 {
4107 int i;
4108
4109 atomic_inc(&bp->intr_sem);
4110
4111 bnxt_disable_int(bp);
4112 for (i = 0; i < bp->cp_nr_rings; i++) {
4113 int map_idx = bnxt_cp_num_to_irq_num(bp, i);
4114
4115 synchronize_irq(bp->irq_tbl[map_idx].vector);
4116 }
4117 }
4118
4119 static void bnxt_enable_int(struct bnxt *bp)
4120 {
4121 int i;
4122
4123 atomic_set(&bp->intr_sem, 0);
4124 for (i = 0; i < bp->cp_nr_rings; i++) {
4125 struct bnxt_napi *bnapi = bp->bnapi[i];
4126 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
4127
4128 bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons);
4129 }
4130 }
4131
4132 void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type,
4133 u16 cmpl_ring, u16 target_id)
4134 {
4135 struct input *req = request;
4136
4137 req->req_type = cpu_to_le16(req_type);
4138 req->cmpl_ring = cpu_to_le16(cmpl_ring);
4139 req->target_id = cpu_to_le16(target_id);
4140 if (bnxt_kong_hwrm_message(bp, req))
4141 req->resp_addr = cpu_to_le64(bp->hwrm_cmd_kong_resp_dma_addr);
4142 else
4143 req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
4144 }
4145
4146 static int bnxt_hwrm_to_stderr(u32 hwrm_err)
4147 {
4148 switch (hwrm_err) {
4149 case HWRM_ERR_CODE_SUCCESS:
4150 return 0;
4151 case HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED:
4152 return -EACCES;
4153 case HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR:
4154 return -ENOSPC;
4155 case HWRM_ERR_CODE_INVALID_PARAMS:
4156 case HWRM_ERR_CODE_INVALID_FLAGS:
4157 case HWRM_ERR_CODE_INVALID_ENABLES:
4158 case HWRM_ERR_CODE_UNSUPPORTED_TLV:
4159 case HWRM_ERR_CODE_UNSUPPORTED_OPTION_ERR:
4160 return -EINVAL;
4161 case HWRM_ERR_CODE_NO_BUFFER:
4162 return -ENOMEM;
4163 case HWRM_ERR_CODE_HOT_RESET_PROGRESS:
4164 case HWRM_ERR_CODE_BUSY:
4165 return -EAGAIN;
4166 case HWRM_ERR_CODE_CMD_NOT_SUPPORTED:
4167 return -EOPNOTSUPP;
4168 default:
4169 return -EIO;
4170 }
4171 }
4172
4173 static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
4174 int timeout, bool silent)
4175 {
4176 int i, intr_process, rc, tmo_count;
4177 struct input *req = msg;
4178 u32 *data = msg;
4179 __le32 *resp_len;
4180 u8 *valid;
4181 u16 cp_ring_id, len = 0;
4182 struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr;
4183 u16 max_req_len = BNXT_HWRM_MAX_REQ_LEN;
4184 struct hwrm_short_input short_input = {0};
4185 u32 doorbell_offset = BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER;
4186 u8 *resp_addr = (u8 *)bp->hwrm_cmd_resp_addr;
4187 u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM;
4188 u16 dst = BNXT_HWRM_CHNL_CHIMP;
4189
4190 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
4191 return -EBUSY;
4192
4193 if (msg_len > BNXT_HWRM_MAX_REQ_LEN) {
4194 if (msg_len > bp->hwrm_max_ext_req_len ||
4195 !bp->hwrm_short_cmd_req_addr)
4196 return -EINVAL;
4197 }
4198
4199 if (bnxt_hwrm_kong_chnl(bp, req)) {
4200 dst = BNXT_HWRM_CHNL_KONG;
4201 bar_offset = BNXT_GRCPF_REG_KONG_COMM;
4202 doorbell_offset = BNXT_GRCPF_REG_KONG_COMM_TRIGGER;
4203 resp = bp->hwrm_cmd_kong_resp_addr;
4204 resp_addr = (u8 *)bp->hwrm_cmd_kong_resp_addr;
4205 }
4206
4207 memset(resp, 0, PAGE_SIZE);
4208 cp_ring_id = le16_to_cpu(req->cmpl_ring);
4209 intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1;
4210
4211 req->seq_id = cpu_to_le16(bnxt_get_hwrm_seq_id(bp, dst));
4212 /* currently supports only one outstanding message */
4213 if (intr_process)
4214 bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id);
4215
4216 if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
4217 msg_len > BNXT_HWRM_MAX_REQ_LEN) {
4218 void *short_cmd_req = bp->hwrm_short_cmd_req_addr;
4219 u16 max_msg_len;
4220
4221 /* Set boundary for maximum extended request length for short
4222 * cmd format. If passed up from device use the max supported
4223 * internal req length.
4224 */
4225 max_msg_len = bp->hwrm_max_ext_req_len;
4226
4227 memcpy(short_cmd_req, req, msg_len);
4228 if (msg_len < max_msg_len)
4229 memset(short_cmd_req + msg_len, 0,
4230 max_msg_len - msg_len);
4231
4232 short_input.req_type = req->req_type;
4233 short_input.signature =
4234 cpu_to_le16(SHORT_REQ_SIGNATURE_SHORT_CMD);
4235 short_input.size = cpu_to_le16(msg_len);
4236 short_input.req_addr =
4237 cpu_to_le64(bp->hwrm_short_cmd_req_dma_addr);
4238
4239 data = (u32 *)&short_input;
4240 msg_len = sizeof(short_input);
4241
4242 /* Sync memory write before updating doorbell */
4243 wmb();
4244
4245 max_req_len = BNXT_HWRM_SHORT_REQ_LEN;
4246 }
4247
4248 /* Write request msg to hwrm channel */
4249 __iowrite32_copy(bp->bar0 + bar_offset, data, msg_len / 4);
4250
4251 for (i = msg_len; i < max_req_len; i += 4)
4252 writel(0, bp->bar0 + bar_offset + i);
4253
4254 /* Ring channel doorbell */
4255 writel(1, bp->bar0 + doorbell_offset);
4256
4257 if (!pci_is_enabled(bp->pdev))
4258 return 0;
4259
4260 if (!timeout)
4261 timeout = DFLT_HWRM_CMD_TIMEOUT;
4262 /* convert timeout to usec */
4263 timeout *= 1000;
4264
4265 i = 0;
4266 /* Short timeout for the first few iterations:
4267 * number of loops = number of loops for short timeout +
4268 * number of loops for standard timeout.
4269 */
4270 tmo_count = HWRM_SHORT_TIMEOUT_COUNTER;
4271 timeout = timeout - HWRM_SHORT_MIN_TIMEOUT * HWRM_SHORT_TIMEOUT_COUNTER;
4272 tmo_count += DIV_ROUND_UP(timeout, HWRM_MIN_TIMEOUT);
4273 resp_len = (__le32 *)(resp_addr + HWRM_RESP_LEN_OFFSET);
4274
4275 if (intr_process) {
4276 u16 seq_id = bp->hwrm_intr_seq_id;
4277
4278 /* Wait until hwrm response cmpl interrupt is processed */
4279 while (bp->hwrm_intr_seq_id != (u16)~seq_id &&
4280 i++ < tmo_count) {
4281 /* Abort the wait for completion if the FW health
4282 * check has failed.
4283 */
4284 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
4285 return -EBUSY;
4286 /* on first few passes, just barely sleep */
4287 if (i < HWRM_SHORT_TIMEOUT_COUNTER)
4288 usleep_range(HWRM_SHORT_MIN_TIMEOUT,
4289 HWRM_SHORT_MAX_TIMEOUT);
4290 else
4291 usleep_range(HWRM_MIN_TIMEOUT,
4292 HWRM_MAX_TIMEOUT);
4293 }
4294
4295 if (bp->hwrm_intr_seq_id != (u16)~seq_id) {
4296 if (!silent)
4297 netdev_err(bp->dev, "Resp cmpl intr err msg: 0x%x\n",
4298 le16_to_cpu(req->req_type));
4299 return -EBUSY;
4300 }
4301 len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >>
4302 HWRM_RESP_LEN_SFT;
4303 valid = resp_addr + len - 1;
4304 } else {
4305 int j;
4306
4307 /* Check if response len is updated */
4308 for (i = 0; i < tmo_count; i++) {
4309 /* Abort the wait for completion if the FW health
4310 * check has failed.
4311 */
4312 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
4313 return -EBUSY;
4314 len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >>
4315 HWRM_RESP_LEN_SFT;
4316 if (len)
4317 break;
4318 /* on first few passes, just barely sleep */
4319 if (i < HWRM_SHORT_TIMEOUT_COUNTER)
4320 usleep_range(HWRM_SHORT_MIN_TIMEOUT,
4321 HWRM_SHORT_MAX_TIMEOUT);
4322 else
4323 usleep_range(HWRM_MIN_TIMEOUT,
4324 HWRM_MAX_TIMEOUT);
4325 }
4326
4327 if (i >= tmo_count) {
4328 if (!silent)
4329 netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n",
4330 HWRM_TOTAL_TIMEOUT(i),
4331 le16_to_cpu(req->req_type),
4332 le16_to_cpu(req->seq_id), len);
4333 return -EBUSY;
4334 }
4335
4336 /* Last byte of resp contains valid bit */
4337 valid = resp_addr + len - 1;
4338 for (j = 0; j < HWRM_VALID_BIT_DELAY_USEC; j++) {
4339 /* make sure we read from updated DMA memory */
4340 dma_rmb();
4341 if (*valid)
4342 break;
4343 usleep_range(1, 5);
4344 }
4345
4346 if (j >= HWRM_VALID_BIT_DELAY_USEC) {
4347 if (!silent)
4348 netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n",
4349 HWRM_TOTAL_TIMEOUT(i),
4350 le16_to_cpu(req->req_type),
4351 le16_to_cpu(req->seq_id), len,
4352 *valid);
4353 return -EBUSY;
4354 }
4355 }
4356
4357 /* Zero valid bit for compatibility. Valid bit in an older spec
4358 * may become a new field in a newer spec. We must make sure that
4359 * a new field not implemented by old spec will read zero.
4360 */
4361 *valid = 0;
4362 rc = le16_to_cpu(resp->error_code);
4363 if (rc && !silent)
4364 netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n",
4365 le16_to_cpu(resp->req_type),
4366 le16_to_cpu(resp->seq_id), rc);
4367 return bnxt_hwrm_to_stderr(rc);
4368 }
4369
4370 int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
4371 {
4372 return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false);
4373 }
4374
4375 int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
4376 int timeout)
4377 {
4378 return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
4379 }
4380
4381 int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
4382 {
4383 int rc;
4384
4385 mutex_lock(&bp->hwrm_cmd_lock);
4386 rc = _hwrm_send_message(bp, msg, msg_len, timeout);
4387 mutex_unlock(&bp->hwrm_cmd_lock);
4388 return rc;
4389 }
4390
4391 int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
4392 int timeout)
4393 {
4394 int rc;
4395
4396 mutex_lock(&bp->hwrm_cmd_lock);
4397 rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
4398 mutex_unlock(&bp->hwrm_cmd_lock);
4399 return rc;
4400 }
4401
4402 int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size,
4403 bool async_only)
4404 {
4405 struct hwrm_func_drv_rgtr_output *resp = bp->hwrm_cmd_resp_addr;
4406 struct hwrm_func_drv_rgtr_input req = {0};
4407 DECLARE_BITMAP(async_events_bmap, 256);
4408 u32 *events = (u32 *)async_events_bmap;
4409 u32 flags;
4410 int rc, i;
4411
4412 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_RGTR, -1, -1);
4413
4414 req.enables =
4415 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE |
4416 FUNC_DRV_RGTR_REQ_ENABLES_VER |
4417 FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD);
4418
4419 req.os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX);
4420 flags = FUNC_DRV_RGTR_REQ_FLAGS_16BIT_VER_MODE;
4421 if (bp->fw_cap & BNXT_FW_CAP_HOT_RESET)
4422 flags |= FUNC_DRV_RGTR_REQ_FLAGS_HOT_RESET_SUPPORT;
4423 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
4424 flags |= FUNC_DRV_RGTR_REQ_FLAGS_ERROR_RECOVERY_SUPPORT |
4425 FUNC_DRV_RGTR_REQ_FLAGS_MASTER_SUPPORT;
4426 req.flags = cpu_to_le32(flags);
4427 req.ver_maj_8b = DRV_VER_MAJ;
4428 req.ver_min_8b = DRV_VER_MIN;
4429 req.ver_upd_8b = DRV_VER_UPD;
4430 req.ver_maj = cpu_to_le16(DRV_VER_MAJ);
4431 req.ver_min = cpu_to_le16(DRV_VER_MIN);
4432 req.ver_upd = cpu_to_le16(DRV_VER_UPD);
4433
4434 if (BNXT_PF(bp)) {
4435 u32 data[8];
4436 int i;
4437
4438 memset(data, 0, sizeof(data));
4439 for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) {
4440 u16 cmd = bnxt_vf_req_snif[i];
4441 unsigned int bit, idx;
4442
4443 idx = cmd / 32;
4444 bit = cmd % 32;
4445 data[idx] |= 1 << bit;
4446 }
4447
4448 for (i = 0; i < 8; i++)
4449 req.vf_req_fwd[i] = cpu_to_le32(data[i]);
4450
4451 req.enables |=
4452 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD);
4453 }
4454
4455 if (bp->fw_cap & BNXT_FW_CAP_OVS_64BIT_HANDLE)
4456 req.flags |= cpu_to_le32(
4457 FUNC_DRV_RGTR_REQ_FLAGS_FLOW_HANDLE_64BIT_MODE);
4458
4459 memset(async_events_bmap, 0, sizeof(async_events_bmap));
4460 for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++) {
4461 u16 event_id = bnxt_async_events_arr[i];
4462
4463 if (event_id == ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY &&
4464 !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
4465 continue;
4466 __set_bit(bnxt_async_events_arr[i], async_events_bmap);
4467 }
4468 if (bmap && bmap_size) {
4469 for (i = 0; i < bmap_size; i++) {
4470 if (test_bit(i, bmap))
4471 __set_bit(i, async_events_bmap);
4472 }
4473 }
4474 for (i = 0; i < 8; i++)
4475 req.async_event_fwd[i] |= cpu_to_le32(events[i]);
4476
4477 if (async_only)
4478 req.enables =
4479 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD);
4480
4481 mutex_lock(&bp->hwrm_cmd_lock);
4482 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4483 if (!rc) {
4484 set_bit(BNXT_STATE_DRV_REGISTERED, &bp->state);
4485 if (resp->flags &
4486 cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED))
4487 bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE;
4488 }
4489 mutex_unlock(&bp->hwrm_cmd_lock);
4490 return rc;
4491 }
4492
4493 static int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp)
4494 {
4495 struct hwrm_func_drv_unrgtr_input req = {0};
4496
4497 if (!test_and_clear_bit(BNXT_STATE_DRV_REGISTERED, &bp->state))
4498 return 0;
4499
4500 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_UNRGTR, -1, -1);
4501 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4502 }
4503
4504 static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)
4505 {
4506 u32 rc = 0;
4507 struct hwrm_tunnel_dst_port_free_input req = {0};
4508
4509 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_FREE, -1, -1);
4510 req.tunnel_type = tunnel_type;
4511
4512 switch (tunnel_type) {
4513 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN:
4514 req.tunnel_dst_port_id = bp->vxlan_fw_dst_port_id;
4515 break;
4516 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE:
4517 req.tunnel_dst_port_id = bp->nge_fw_dst_port_id;
4518 break;
4519 default:
4520 break;
4521 }
4522
4523 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4524 if (rc)
4525 netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n",
4526 rc);
4527 return rc;
4528 }
4529
4530 static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port,
4531 u8 tunnel_type)
4532 {
4533 u32 rc = 0;
4534 struct hwrm_tunnel_dst_port_alloc_input req = {0};
4535 struct hwrm_tunnel_dst_port_alloc_output *resp = bp->hwrm_cmd_resp_addr;
4536
4537 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_ALLOC, -1, -1);
4538
4539 req.tunnel_type = tunnel_type;
4540 req.tunnel_dst_port_val = port;
4541
4542 mutex_lock(&bp->hwrm_cmd_lock);
4543 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4544 if (rc) {
4545 netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n",
4546 rc);
4547 goto err_out;
4548 }
4549
4550 switch (tunnel_type) {
4551 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN:
4552 bp->vxlan_fw_dst_port_id = resp->tunnel_dst_port_id;
4553 break;
4554 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE:
4555 bp->nge_fw_dst_port_id = resp->tunnel_dst_port_id;
4556 break;
4557 default:
4558 break;
4559 }
4560
4561 err_out:
4562 mutex_unlock(&bp->hwrm_cmd_lock);
4563 return rc;
4564 }
4565
4566 static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id)
4567 {
4568 struct hwrm_cfa_l2_set_rx_mask_input req = {0};
4569 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4570
4571 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_SET_RX_MASK, -1, -1);
4572 req.vnic_id = cpu_to_le32(vnic->fw_vnic_id);
4573
4574 req.num_mc_entries = cpu_to_le32(vnic->mc_list_count);
4575 req.mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping);
4576 req.mask = cpu_to_le32(vnic->rx_mask);
4577 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4578 }
4579
4580 #ifdef CONFIG_RFS_ACCEL
4581 static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
4582 struct bnxt_ntuple_filter *fltr)
4583 {
4584 struct hwrm_cfa_ntuple_filter_free_input req = {0};
4585
4586 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_FREE, -1, -1);
4587 req.ntuple_filter_id = fltr->filter_id;
4588 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4589 }
4590
4591 #define BNXT_NTP_FLTR_FLAGS \
4592 (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \
4593 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \
4594 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR | \
4595 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \
4596 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \
4597 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \
4598 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \
4599 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \
4600 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \
4601 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \
4602 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \
4603 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \
4604 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \
4605 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID)
4606
4607 #define BNXT_NTP_TUNNEL_FLTR_FLAG \
4608 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE
4609
4610 static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
4611 struct bnxt_ntuple_filter *fltr)
4612 {
4613 struct hwrm_cfa_ntuple_filter_alloc_input req = {0};
4614 struct hwrm_cfa_ntuple_filter_alloc_output *resp;
4615 struct flow_keys *keys = &fltr->fkeys;
4616 struct bnxt_vnic_info *vnic;
4617 u32 flags = 0;
4618 int rc = 0;
4619
4620 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_ALLOC, -1, -1);
4621 req.l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx];
4622
4623 if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) {
4624 flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX;
4625 req.dst_id = cpu_to_le16(fltr->rxq);
4626 } else {
4627 vnic = &bp->vnic_info[fltr->rxq + 1];
4628 req.dst_id = cpu_to_le16(vnic->fw_vnic_id);
4629 }
4630 req.flags = cpu_to_le32(flags);
4631 req.enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS);
4632
4633 req.ethertype = htons(ETH_P_IP);
4634 memcpy(req.src_macaddr, fltr->src_mac_addr, ETH_ALEN);
4635 req.ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4;
4636 req.ip_protocol = keys->basic.ip_proto;
4637
4638 if (keys->basic.n_proto == htons(ETH_P_IPV6)) {
4639 int i;
4640
4641 req.ethertype = htons(ETH_P_IPV6);
4642 req.ip_addr_type =
4643 CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6;
4644 *(struct in6_addr *)&req.src_ipaddr[0] =
4645 keys->addrs.v6addrs.src;
4646 *(struct in6_addr *)&req.dst_ipaddr[0] =
4647 keys->addrs.v6addrs.dst;
4648 for (i = 0; i < 4; i++) {
4649 req.src_ipaddr_mask[i] = cpu_to_be32(0xffffffff);
4650 req.dst_ipaddr_mask[i] = cpu_to_be32(0xffffffff);
4651 }
4652 } else {
4653 req.src_ipaddr[0] = keys->addrs.v4addrs.src;
4654 req.src_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
4655 req.dst_ipaddr[0] = keys->addrs.v4addrs.dst;
4656 req.dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
4657 }
4658 if (keys->control.flags & FLOW_DIS_ENCAPSULATION) {
4659 req.enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG);
4660 req.tunnel_type =
4661 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL;
4662 }
4663
4664 req.src_port = keys->ports.src;
4665 req.src_port_mask = cpu_to_be16(0xffff);
4666 req.dst_port = keys->ports.dst;
4667 req.dst_port_mask = cpu_to_be16(0xffff);
4668
4669 mutex_lock(&bp->hwrm_cmd_lock);
4670 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4671 if (!rc) {
4672 resp = bnxt_get_hwrm_resp_addr(bp, &req);
4673 fltr->filter_id = resp->ntuple_filter_id;
4674 }
4675 mutex_unlock(&bp->hwrm_cmd_lock);
4676 return rc;
4677 }
4678 #endif
4679
4680 static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx,
4681 u8 *mac_addr)
4682 {
4683 u32 rc = 0;
4684 struct hwrm_cfa_l2_filter_alloc_input req = {0};
4685 struct hwrm_cfa_l2_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr;
4686
4687 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_ALLOC, -1, -1);
4688 req.flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX);
4689 if (!BNXT_CHIP_TYPE_NITRO_A0(bp))
4690 req.flags |=
4691 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST);
4692 req.dst_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id);
4693 req.enables =
4694 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR |
4695 CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID |
4696 CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK);
4697 memcpy(req.l2_addr, mac_addr, ETH_ALEN);
4698 req.l2_addr_mask[0] = 0xff;
4699 req.l2_addr_mask[1] = 0xff;
4700 req.l2_addr_mask[2] = 0xff;
4701 req.l2_addr_mask[3] = 0xff;
4702 req.l2_addr_mask[4] = 0xff;
4703 req.l2_addr_mask[5] = 0xff;
4704
4705 mutex_lock(&bp->hwrm_cmd_lock);
4706 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4707 if (!rc)
4708 bp->vnic_info[vnic_id].fw_l2_filter_id[idx] =
4709 resp->l2_filter_id;
4710 mutex_unlock(&bp->hwrm_cmd_lock);
4711 return rc;
4712 }
4713
4714 static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp)
4715 {
4716 u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */
4717 int rc = 0;
4718
4719 /* Any associated ntuple filters will also be cleared by firmware. */
4720 mutex_lock(&bp->hwrm_cmd_lock);
4721 for (i = 0; i < num_of_vnics; i++) {
4722 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
4723
4724 for (j = 0; j < vnic->uc_filter_count; j++) {
4725 struct hwrm_cfa_l2_filter_free_input req = {0};
4726
4727 bnxt_hwrm_cmd_hdr_init(bp, &req,
4728 HWRM_CFA_L2_FILTER_FREE, -1, -1);
4729
4730 req.l2_filter_id = vnic->fw_l2_filter_id[j];
4731
4732 rc = _hwrm_send_message(bp, &req, sizeof(req),
4733 HWRM_CMD_TIMEOUT);
4734 }
4735 vnic->uc_filter_count = 0;
4736 }
4737 mutex_unlock(&bp->hwrm_cmd_lock);
4738
4739 return rc;
4740 }
4741
4742 static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
4743 {
4744 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4745 u16 max_aggs = VNIC_TPA_CFG_REQ_MAX_AGGS_MAX;
4746 struct hwrm_vnic_tpa_cfg_input req = {0};
4747
4748 if (vnic->fw_vnic_id == INVALID_HW_RING_ID)
4749 return 0;
4750
4751 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_TPA_CFG, -1, -1);
4752
4753 if (tpa_flags) {
4754 u16 mss = bp->dev->mtu - 40;
4755 u32 nsegs, n, segs = 0, flags;
4756
4757 flags = VNIC_TPA_CFG_REQ_FLAGS_TPA |
4758 VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA |
4759 VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE |
4760 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN |
4761 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ;
4762 if (tpa_flags & BNXT_FLAG_GRO)
4763 flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO;
4764
4765 req.flags = cpu_to_le32(flags);
4766
4767 req.enables =
4768 cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS |
4769 VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS |
4770 VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN);
4771
4772 /* Number of segs are log2 units, and first packet is not
4773 * included as part of this units.
4774 */
4775 if (mss <= BNXT_RX_PAGE_SIZE) {
4776 n = BNXT_RX_PAGE_SIZE / mss;
4777 nsegs = (MAX_SKB_FRAGS - 1) * n;
4778 } else {
4779 n = mss / BNXT_RX_PAGE_SIZE;
4780 if (mss & (BNXT_RX_PAGE_SIZE - 1))
4781 n++;
4782 nsegs = (MAX_SKB_FRAGS - n) / n;
4783 }
4784
4785 if (bp->flags & BNXT_FLAG_CHIP_P5) {
4786 segs = MAX_TPA_SEGS_P5;
4787 max_aggs = bp->max_tpa;
4788 } else {
4789 segs = ilog2(nsegs);
4790 }
4791 req.max_agg_segs = cpu_to_le16(segs);
4792 req.max_aggs = cpu_to_le16(max_aggs);
4793
4794 req.min_agg_len = cpu_to_le32(512);
4795 }
4796 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
4797
4798 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4799 }
4800
4801 static u16 bnxt_cp_ring_from_grp(struct bnxt *bp, struct bnxt_ring_struct *ring)
4802 {
4803 struct bnxt_ring_grp_info *grp_info;
4804
4805 grp_info = &bp->grp_info[ring->grp_idx];
4806 return grp_info->cp_fw_ring_id;
4807 }
4808
4809 static u16 bnxt_cp_ring_for_rx(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
4810 {
4811 if (bp->flags & BNXT_FLAG_CHIP_P5) {
4812 struct bnxt_napi *bnapi = rxr->bnapi;
4813 struct bnxt_cp_ring_info *cpr;
4814
4815 cpr = bnapi->cp_ring.cp_ring_arr[BNXT_RX_HDL];
4816 return cpr->cp_ring_struct.fw_ring_id;
4817 } else {
4818 return bnxt_cp_ring_from_grp(bp, &rxr->rx_ring_struct);
4819 }
4820 }
4821
4822 static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr)
4823 {
4824 if (bp->flags & BNXT_FLAG_CHIP_P5) {
4825 struct bnxt_napi *bnapi = txr->bnapi;
4826 struct bnxt_cp_ring_info *cpr;
4827
4828 cpr = bnapi->cp_ring.cp_ring_arr[BNXT_TX_HDL];
4829 return cpr->cp_ring_struct.fw_ring_id;
4830 } else {
4831 return bnxt_cp_ring_from_grp(bp, &txr->tx_ring_struct);
4832 }
4833 }
4834
4835 static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss)
4836 {
4837 u32 i, j, max_rings;
4838 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4839 struct hwrm_vnic_rss_cfg_input req = {0};
4840
4841 if ((bp->flags & BNXT_FLAG_CHIP_P5) ||
4842 vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID)
4843 return 0;
4844
4845 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_CFG, -1, -1);
4846 if (set_rss) {
4847 req.hash_type = cpu_to_le32(bp->rss_hash_cfg);
4848 req.hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT;
4849 if (vnic->flags & BNXT_VNIC_RSS_FLAG) {
4850 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
4851 max_rings = bp->rx_nr_rings - 1;
4852 else
4853 max_rings = bp->rx_nr_rings;
4854 } else {
4855 max_rings = 1;
4856 }
4857
4858 /* Fill the RSS indirection table with ring group ids */
4859 for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++, j++) {
4860 if (j == max_rings)
4861 j = 0;
4862 vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]);
4863 }
4864
4865 req.ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr);
4866 req.hash_key_tbl_addr =
4867 cpu_to_le64(vnic->rss_hash_key_dma_addr);
4868 }
4869 req.rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]);
4870 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4871 }
4872
4873 static int bnxt_hwrm_vnic_set_rss_p5(struct bnxt *bp, u16 vnic_id, bool set_rss)
4874 {
4875 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4876 u32 i, j, k, nr_ctxs, max_rings = bp->rx_nr_rings;
4877 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[0];
4878 struct hwrm_vnic_rss_cfg_input req = {0};
4879
4880 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_CFG, -1, -1);
4881 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
4882 if (!set_rss) {
4883 hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4884 return 0;
4885 }
4886 req.hash_type = cpu_to_le32(bp->rss_hash_cfg);
4887 req.hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT;
4888 req.ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr);
4889 req.hash_key_tbl_addr = cpu_to_le64(vnic->rss_hash_key_dma_addr);
4890 nr_ctxs = DIV_ROUND_UP(bp->rx_nr_rings, 64);
4891 for (i = 0, k = 0; i < nr_ctxs; i++) {
4892 __le16 *ring_tbl = vnic->rss_table;
4893 int rc;
4894
4895 req.ring_table_pair_index = i;
4896 req.rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[i]);
4897 for (j = 0; j < 64; j++) {
4898 u16 ring_id;
4899
4900 ring_id = rxr->rx_ring_struct.fw_ring_id;
4901 *ring_tbl++ = cpu_to_le16(ring_id);
4902 ring_id = bnxt_cp_ring_for_rx(bp, rxr);
4903 *ring_tbl++ = cpu_to_le16(ring_id);
4904 rxr++;
4905 k++;
4906 if (k == max_rings) {
4907 k = 0;
4908 rxr = &bp->rx_ring[0];
4909 }
4910 }
4911 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4912 if (rc)
4913 return rc;
4914 }
4915 return 0;
4916 }
4917
4918 static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id)
4919 {
4920 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4921 struct hwrm_vnic_plcmodes_cfg_input req = {0};
4922
4923 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_PLCMODES_CFG, -1, -1);
4924 req.flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT |
4925 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 |
4926 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6);
4927 req.enables =
4928 cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID |
4929 VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID);
4930 /* thresholds not implemented in firmware yet */
4931 req.jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh);
4932 req.hds_threshold = cpu_to_le16(bp->rx_copy_thresh);
4933 req.vnic_id = cpu_to_le32(vnic->fw_vnic_id);
4934 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4935 }
4936
4937 static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id,
4938 u16 ctx_idx)
4939 {
4940 struct hwrm_vnic_rss_cos_lb_ctx_free_input req = {0};
4941
4942 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_FREE, -1, -1);
4943 req.rss_cos_lb_ctx_id =
4944 cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx]);
4945
4946 hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4947 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID;
4948 }
4949
4950 static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp)
4951 {
4952 int i, j;
4953
4954 for (i = 0; i < bp->nr_vnics; i++) {
4955 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
4956
4957 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) {
4958 if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID)
4959 bnxt_hwrm_vnic_ctx_free_one(bp, i, j);
4960 }
4961 }
4962 bp->rsscos_nr_ctxs = 0;
4963 }
4964
4965 static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id, u16 ctx_idx)
4966 {
4967 int rc;
4968 struct hwrm_vnic_rss_cos_lb_ctx_alloc_input req = {0};
4969 struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp =
4970 bp->hwrm_cmd_resp_addr;
4971
4972 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC, -1,
4973 -1);
4974
4975 mutex_lock(&bp->hwrm_cmd_lock);
4976 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4977 if (!rc)
4978 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] =
4979 le16_to_cpu(resp->rss_cos_lb_ctx_id);
4980 mutex_unlock(&bp->hwrm_cmd_lock);
4981
4982 return rc;
4983 }
4984
4985 static u32 bnxt_get_roce_vnic_mode(struct bnxt *bp)
4986 {
4987 if (bp->flags & BNXT_FLAG_ROCE_MIRROR_CAP)
4988 return VNIC_CFG_REQ_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_MODE;
4989 return VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE;
4990 }
4991
4992 int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id)
4993 {
4994 unsigned int ring = 0, grp_idx;
4995 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4996 struct hwrm_vnic_cfg_input req = {0};
4997 u16 def_vlan = 0;
4998
4999 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_CFG, -1, -1);
5000
5001 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5002 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[0];
5003
5004 req.default_rx_ring_id =
5005 cpu_to_le16(rxr->rx_ring_struct.fw_ring_id);
5006 req.default_cmpl_ring_id =
5007 cpu_to_le16(bnxt_cp_ring_for_rx(bp, rxr));
5008 req.enables =
5009 cpu_to_le32(VNIC_CFG_REQ_ENABLES_DEFAULT_RX_RING_ID |
5010 VNIC_CFG_REQ_ENABLES_DEFAULT_CMPL_RING_ID);
5011 goto vnic_mru;
5012 }
5013 req.enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP);
5014 /* Only RSS support for now TBD: COS & LB */
5015 if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) {
5016 req.rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]);
5017 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE |
5018 VNIC_CFG_REQ_ENABLES_MRU);
5019 } else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) {
5020 req.rss_rule =
5021 cpu_to_le16(bp->vnic_info[0].fw_rss_cos_lb_ctx[0]);
5022 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE |
5023 VNIC_CFG_REQ_ENABLES_MRU);
5024 req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE);
5025 } else {
5026 req.rss_rule = cpu_to_le16(0xffff);
5027 }
5028
5029 if (BNXT_CHIP_TYPE_NITRO_A0(bp) &&
5030 (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) {
5031 req.cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]);
5032 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE);
5033 } else {
5034 req.cos_rule = cpu_to_le16(0xffff);
5035 }
5036
5037 if (vnic->flags & BNXT_VNIC_RSS_FLAG)
5038 ring = 0;
5039 else if (vnic->flags & BNXT_VNIC_RFS_FLAG)
5040 ring = vnic_id - 1;
5041 else if ((vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp))
5042 ring = bp->rx_nr_rings - 1;
5043
5044 grp_idx = bp->rx_ring[ring].bnapi->index;
5045 req.dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id);
5046 req.lb_rule = cpu_to_le16(0xffff);
5047 vnic_mru:
5048 req.mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN +
5049 VLAN_HLEN);
5050
5051 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
5052 #ifdef CONFIG_BNXT_SRIOV
5053 if (BNXT_VF(bp))
5054 def_vlan = bp->vf.vlan;
5055 #endif
5056 if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan)
5057 req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE);
5058 if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP))
5059 req.flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp));
5060
5061 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5062 }
5063
5064 static void bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id)
5065 {
5066 if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) {
5067 struct hwrm_vnic_free_input req = {0};
5068
5069 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_FREE, -1, -1);
5070 req.vnic_id =
5071 cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id);
5072
5073 hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5074 bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID;
5075 }
5076 }
5077
5078 static void bnxt_hwrm_vnic_free(struct bnxt *bp)
5079 {
5080 u16 i;
5081
5082 for (i = 0; i < bp->nr_vnics; i++)
5083 bnxt_hwrm_vnic_free_one(bp, i);
5084 }
5085
5086 static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id,
5087 unsigned int start_rx_ring_idx,
5088 unsigned int nr_rings)
5089 {
5090 int rc = 0;
5091 unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings;
5092 struct hwrm_vnic_alloc_input req = {0};
5093 struct hwrm_vnic_alloc_output *resp = bp->hwrm_cmd_resp_addr;
5094 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
5095
5096 if (bp->flags & BNXT_FLAG_CHIP_P5)
5097 goto vnic_no_ring_grps;
5098
5099 /* map ring groups to this vnic */
5100 for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) {
5101 grp_idx = bp->rx_ring[i].bnapi->index;
5102 if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) {
5103 netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n",
5104 j, nr_rings);
5105 break;
5106 }
5107 vnic->fw_grp_ids[j] = bp->grp_info[grp_idx].fw_grp_id;
5108 }
5109
5110 vnic_no_ring_grps:
5111 for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++)
5112 vnic->fw_rss_cos_lb_ctx[i] = INVALID_HW_RING_ID;
5113 if (vnic_id == 0)
5114 req.flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT);
5115
5116 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_ALLOC, -1, -1);
5117
5118 mutex_lock(&bp->hwrm_cmd_lock);
5119 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5120 if (!rc)
5121 vnic->fw_vnic_id = le32_to_cpu(resp->vnic_id);
5122 mutex_unlock(&bp->hwrm_cmd_lock);
5123 return rc;
5124 }
5125
5126 static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
5127 {
5128 struct hwrm_vnic_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
5129 struct hwrm_vnic_qcaps_input req = {0};
5130 int rc;
5131
5132 bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats);
5133 bp->flags &= ~(BNXT_FLAG_NEW_RSS_CAP | BNXT_FLAG_ROCE_MIRROR_CAP);
5134 if (bp->hwrm_spec_code < 0x10600)
5135 return 0;
5136
5137 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_QCAPS, -1, -1);
5138 mutex_lock(&bp->hwrm_cmd_lock);
5139 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5140 if (!rc) {
5141 u32 flags = le32_to_cpu(resp->flags);
5142
5143 if (!(bp->flags & BNXT_FLAG_CHIP_P5) &&
5144 (flags & VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP))
5145 bp->flags |= BNXT_FLAG_NEW_RSS_CAP;
5146 if (flags &
5147 VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP)
5148 bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP;
5149 bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported);
5150 if (bp->max_tpa_v2)
5151 bp->hw_ring_stats_size =
5152 sizeof(struct ctx_hw_stats_ext);
5153 }
5154 mutex_unlock(&bp->hwrm_cmd_lock);
5155 return rc;
5156 }
5157
5158 static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp)
5159 {
5160 u16 i;
5161 u32 rc = 0;
5162
5163 if (bp->flags & BNXT_FLAG_CHIP_P5)
5164 return 0;
5165
5166 mutex_lock(&bp->hwrm_cmd_lock);
5167 for (i = 0; i < bp->rx_nr_rings; i++) {
5168 struct hwrm_ring_grp_alloc_input req = {0};
5169 struct hwrm_ring_grp_alloc_output *resp =
5170 bp->hwrm_cmd_resp_addr;
5171 unsigned int grp_idx = bp->rx_ring[i].bnapi->index;
5172
5173 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_ALLOC, -1, -1);
5174
5175 req.cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id);
5176 req.rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id);
5177 req.ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id);
5178 req.sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx);
5179
5180 rc = _hwrm_send_message(bp, &req, sizeof(req),
5181 HWRM_CMD_TIMEOUT);
5182 if (rc)
5183 break;
5184
5185 bp->grp_info[grp_idx].fw_grp_id =
5186 le32_to_cpu(resp->ring_group_id);
5187 }
5188 mutex_unlock(&bp->hwrm_cmd_lock);
5189 return rc;
5190 }
5191
5192 static void bnxt_hwrm_ring_grp_free(struct bnxt *bp)
5193 {
5194 u16 i;
5195 struct hwrm_ring_grp_free_input req = {0};
5196
5197 if (!bp->grp_info || (bp->flags & BNXT_FLAG_CHIP_P5))
5198 return;
5199
5200 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_FREE, -1, -1);
5201
5202 mutex_lock(&bp->hwrm_cmd_lock);
5203 for (i = 0; i < bp->cp_nr_rings; i++) {
5204 if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID)
5205 continue;
5206 req.ring_group_id =
5207 cpu_to_le32(bp->grp_info[i].fw_grp_id);
5208
5209 _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5210 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
5211 }
5212 mutex_unlock(&bp->hwrm_cmd_lock);
5213 }
5214
5215 static int hwrm_ring_alloc_send_msg(struct bnxt *bp,
5216 struct bnxt_ring_struct *ring,
5217 u32 ring_type, u32 map_index)
5218 {
5219 int rc = 0, err = 0;
5220 struct hwrm_ring_alloc_input req = {0};
5221 struct hwrm_ring_alloc_output *resp = bp->hwrm_cmd_resp_addr;
5222 struct bnxt_ring_mem_info *rmem = &ring->ring_mem;
5223 struct bnxt_ring_grp_info *grp_info;
5224 u16 ring_id;
5225
5226 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_ALLOC, -1, -1);
5227
5228 req.enables = 0;
5229 if (rmem->nr_pages > 1) {
5230 req.page_tbl_addr = cpu_to_le64(rmem->pg_tbl_map);
5231 /* Page size is in log2 units */
5232 req.page_size = BNXT_PAGE_SHIFT;
5233 req.page_tbl_depth = 1;
5234 } else {
5235 req.page_tbl_addr = cpu_to_le64(rmem->dma_arr[0]);
5236 }
5237 req.fbo = 0;
5238 /* Association of ring index with doorbell index and MSIX number */
5239 req.logical_id = cpu_to_le16(map_index);
5240
5241 switch (ring_type) {
5242 case HWRM_RING_ALLOC_TX: {
5243 struct bnxt_tx_ring_info *txr;
5244
5245 txr = container_of(ring, struct bnxt_tx_ring_info,
5246 tx_ring_struct);
5247 req.ring_type = RING_ALLOC_REQ_RING_TYPE_TX;
5248 /* Association of transmit ring with completion ring */
5249 grp_info = &bp->grp_info[ring->grp_idx];
5250 req.cmpl_ring_id = cpu_to_le16(bnxt_cp_ring_for_tx(bp, txr));
5251 req.length = cpu_to_le32(bp->tx_ring_mask + 1);
5252 req.stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
5253 req.queue_id = cpu_to_le16(ring->queue_id);
5254 break;
5255 }
5256 case HWRM_RING_ALLOC_RX:
5257 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
5258 req.length = cpu_to_le32(bp->rx_ring_mask + 1);
5259 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5260 u16 flags = 0;
5261
5262 /* Association of rx ring with stats context */
5263 grp_info = &bp->grp_info[ring->grp_idx];
5264 req.rx_buf_size = cpu_to_le16(bp->rx_buf_use_size);
5265 req.stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
5266 req.enables |= cpu_to_le32(
5267 RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID);
5268 if (NET_IP_ALIGN == 2)
5269 flags = RING_ALLOC_REQ_FLAGS_RX_SOP_PAD;
5270 req.flags = cpu_to_le16(flags);
5271 }
5272 break;
5273 case HWRM_RING_ALLOC_AGG:
5274 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5275 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX_AGG;
5276 /* Association of agg ring with rx ring */
5277 grp_info = &bp->grp_info[ring->grp_idx];
5278 req.rx_ring_id = cpu_to_le16(grp_info->rx_fw_ring_id);
5279 req.rx_buf_size = cpu_to_le16(BNXT_RX_PAGE_SIZE);
5280 req.stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
5281 req.enables |= cpu_to_le32(
5282 RING_ALLOC_REQ_ENABLES_RX_RING_ID_VALID |
5283 RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID);
5284 } else {
5285 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
5286 }
5287 req.length = cpu_to_le32(bp->rx_agg_ring_mask + 1);
5288 break;
5289 case HWRM_RING_ALLOC_CMPL:
5290 req.ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL;
5291 req.length = cpu_to_le32(bp->cp_ring_mask + 1);
5292 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5293 /* Association of cp ring with nq */
5294 grp_info = &bp->grp_info[map_index];
5295 req.nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id);
5296 req.cq_handle = cpu_to_le64(ring->handle);
5297 req.enables |= cpu_to_le32(
5298 RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID);
5299 } else if (bp->flags & BNXT_FLAG_USING_MSIX) {
5300 req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
5301 }
5302 break;
5303 case HWRM_RING_ALLOC_NQ:
5304 req.ring_type = RING_ALLOC_REQ_RING_TYPE_NQ;
5305 req.length = cpu_to_le32(bp->cp_ring_mask + 1);
5306 if (bp->flags & BNXT_FLAG_USING_MSIX)
5307 req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
5308 break;
5309 default:
5310 netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n",
5311 ring_type);
5312 return -1;
5313 }
5314
5315 mutex_lock(&bp->hwrm_cmd_lock);
5316 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5317 err = le16_to_cpu(resp->error_code);
5318 ring_id = le16_to_cpu(resp->ring_id);
5319 mutex_unlock(&bp->hwrm_cmd_lock);
5320
5321 if (rc || err) {
5322 netdev_err(bp->dev, "hwrm_ring_alloc type %d failed. rc:%x err:%x\n",
5323 ring_type, rc, err);
5324 return -EIO;
5325 }
5326 ring->fw_ring_id = ring_id;
5327 return rc;
5328 }
5329
5330 static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx)
5331 {
5332 int rc;
5333
5334 if (BNXT_PF(bp)) {
5335 struct hwrm_func_cfg_input req = {0};
5336
5337 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
5338 req.fid = cpu_to_le16(0xffff);
5339 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR);
5340 req.async_event_cr = cpu_to_le16(idx);
5341 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5342 } else {
5343 struct hwrm_func_vf_cfg_input req = {0};
5344
5345 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1);
5346 req.enables =
5347 cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR);
5348 req.async_event_cr = cpu_to_le16(idx);
5349 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5350 }
5351 return rc;
5352 }
5353
5354 static void bnxt_set_db(struct bnxt *bp, struct bnxt_db_info *db, u32 ring_type,
5355 u32 map_idx, u32 xid)
5356 {
5357 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5358 if (BNXT_PF(bp))
5359 db->doorbell = bp->bar1 + 0x10000;
5360 else
5361 db->doorbell = bp->bar1 + 0x4000;
5362 switch (ring_type) {
5363 case HWRM_RING_ALLOC_TX:
5364 db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ;
5365 break;
5366 case HWRM_RING_ALLOC_RX:
5367 case HWRM_RING_ALLOC_AGG:
5368 db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ;
5369 break;
5370 case HWRM_RING_ALLOC_CMPL:
5371 db->db_key64 = DBR_PATH_L2;
5372 break;
5373 case HWRM_RING_ALLOC_NQ:
5374 db->db_key64 = DBR_PATH_L2;
5375 break;
5376 }
5377 db->db_key64 |= (u64)xid << DBR_XID_SFT;
5378 } else {
5379 db->doorbell = bp->bar1 + map_idx * 0x80;
5380 switch (ring_type) {
5381 case HWRM_RING_ALLOC_TX:
5382 db->db_key32 = DB_KEY_TX;
5383 break;
5384 case HWRM_RING_ALLOC_RX:
5385 case HWRM_RING_ALLOC_AGG:
5386 db->db_key32 = DB_KEY_RX;
5387 break;
5388 case HWRM_RING_ALLOC_CMPL:
5389 db->db_key32 = DB_KEY_CP;
5390 break;
5391 }
5392 }
5393 }
5394
5395 static int bnxt_hwrm_ring_alloc(struct bnxt *bp)
5396 {
5397 bool agg_rings = !!(bp->flags & BNXT_FLAG_AGG_RINGS);
5398 int i, rc = 0;
5399 u32 type;
5400
5401 if (bp->flags & BNXT_FLAG_CHIP_P5)
5402 type = HWRM_RING_ALLOC_NQ;
5403 else
5404 type = HWRM_RING_ALLOC_CMPL;
5405 for (i = 0; i < bp->cp_nr_rings; i++) {
5406 struct bnxt_napi *bnapi = bp->bnapi[i];
5407 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
5408 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
5409 u32 map_idx = ring->map_idx;
5410 unsigned int vector;
5411
5412 vector = bp->irq_tbl[map_idx].vector;
5413 disable_irq_nosync(vector);
5414 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
5415 if (rc) {
5416 enable_irq(vector);
5417 goto err_out;
5418 }
5419 bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id);
5420 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons);
5421 enable_irq(vector);
5422 bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id;
5423
5424 if (!i) {
5425 rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id);
5426 if (rc)
5427 netdev_warn(bp->dev, "Failed to set async event completion ring.\n");
5428 }
5429 }
5430
5431 type = HWRM_RING_ALLOC_TX;
5432 for (i = 0; i < bp->tx_nr_rings; i++) {
5433 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
5434 struct bnxt_ring_struct *ring;
5435 u32 map_idx;
5436
5437 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5438 struct bnxt_napi *bnapi = txr->bnapi;
5439 struct bnxt_cp_ring_info *cpr, *cpr2;
5440 u32 type2 = HWRM_RING_ALLOC_CMPL;
5441
5442 cpr = &bnapi->cp_ring;
5443 cpr2 = cpr->cp_ring_arr[BNXT_TX_HDL];
5444 ring = &cpr2->cp_ring_struct;
5445 ring->handle = BNXT_TX_HDL;
5446 map_idx = bnapi->index;
5447 rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx);
5448 if (rc)
5449 goto err_out;
5450 bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx,
5451 ring->fw_ring_id);
5452 bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons);
5453 }
5454 ring = &txr->tx_ring_struct;
5455 map_idx = i;
5456 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
5457 if (rc)
5458 goto err_out;
5459 bnxt_set_db(bp, &txr->tx_db, type, map_idx, ring->fw_ring_id);
5460 }
5461
5462 type = HWRM_RING_ALLOC_RX;
5463 for (i = 0; i < bp->rx_nr_rings; i++) {
5464 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
5465 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
5466 struct bnxt_napi *bnapi = rxr->bnapi;
5467 u32 map_idx = bnapi->index;
5468
5469 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
5470 if (rc)
5471 goto err_out;
5472 bnxt_set_db(bp, &rxr->rx_db, type, map_idx, ring->fw_ring_id);
5473 /* If we have agg rings, post agg buffers first. */
5474 if (!agg_rings)
5475 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
5476 bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id;
5477 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5478 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
5479 u32 type2 = HWRM_RING_ALLOC_CMPL;
5480 struct bnxt_cp_ring_info *cpr2;
5481
5482 cpr2 = cpr->cp_ring_arr[BNXT_RX_HDL];
5483 ring = &cpr2->cp_ring_struct;
5484 ring->handle = BNXT_RX_HDL;
5485 rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx);
5486 if (rc)
5487 goto err_out;
5488 bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx,
5489 ring->fw_ring_id);
5490 bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons);
5491 }
5492 }
5493
5494 if (agg_rings) {
5495 type = HWRM_RING_ALLOC_AGG;
5496 for (i = 0; i < bp->rx_nr_rings; i++) {
5497 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
5498 struct bnxt_ring_struct *ring =
5499 &rxr->rx_agg_ring_struct;
5500 u32 grp_idx = ring->grp_idx;
5501 u32 map_idx = grp_idx + bp->rx_nr_rings;
5502
5503 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
5504 if (rc)
5505 goto err_out;
5506
5507 bnxt_set_db(bp, &rxr->rx_agg_db, type, map_idx,
5508 ring->fw_ring_id);
5509 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
5510 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
5511 bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id;
5512 }
5513 }
5514 err_out:
5515 return rc;
5516 }
5517
5518 static int hwrm_ring_free_send_msg(struct bnxt *bp,
5519 struct bnxt_ring_struct *ring,
5520 u32 ring_type, int cmpl_ring_id)
5521 {
5522 int rc;
5523 struct hwrm_ring_free_input req = {0};
5524 struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr;
5525 u16 error_code;
5526
5527 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
5528 return 0;
5529
5530 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, cmpl_ring_id, -1);
5531 req.ring_type = ring_type;
5532 req.ring_id = cpu_to_le16(ring->fw_ring_id);
5533
5534 mutex_lock(&bp->hwrm_cmd_lock);
5535 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5536 error_code = le16_to_cpu(resp->error_code);
5537 mutex_unlock(&bp->hwrm_cmd_lock);
5538
5539 if (rc || error_code) {
5540 netdev_err(bp->dev, "hwrm_ring_free type %d failed. rc:%x err:%x\n",
5541 ring_type, rc, error_code);
5542 return -EIO;
5543 }
5544 return 0;
5545 }
5546
5547 static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path)
5548 {
5549 u32 type;
5550 int i;
5551
5552 if (!bp->bnapi)
5553 return;
5554
5555 for (i = 0; i < bp->tx_nr_rings; i++) {
5556 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
5557 struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
5558
5559 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
5560 u32 cmpl_ring_id = bnxt_cp_ring_for_tx(bp, txr);
5561
5562 hwrm_ring_free_send_msg(bp, ring,
5563 RING_FREE_REQ_RING_TYPE_TX,
5564 close_path ? cmpl_ring_id :
5565 INVALID_HW_RING_ID);
5566 ring->fw_ring_id = INVALID_HW_RING_ID;
5567 }
5568 }
5569
5570 for (i = 0; i < bp->rx_nr_rings; i++) {
5571 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
5572 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
5573 u32 grp_idx = rxr->bnapi->index;
5574
5575 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
5576 u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr);
5577
5578 hwrm_ring_free_send_msg(bp, ring,
5579 RING_FREE_REQ_RING_TYPE_RX,
5580 close_path ? cmpl_ring_id :
5581 INVALID_HW_RING_ID);
5582 ring->fw_ring_id = INVALID_HW_RING_ID;
5583 bp->grp_info[grp_idx].rx_fw_ring_id =
5584 INVALID_HW_RING_ID;
5585 }
5586 }
5587
5588 if (bp->flags & BNXT_FLAG_CHIP_P5)
5589 type = RING_FREE_REQ_RING_TYPE_RX_AGG;
5590 else
5591 type = RING_FREE_REQ_RING_TYPE_RX;
5592 for (i = 0; i < bp->rx_nr_rings; i++) {
5593 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
5594 struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct;
5595 u32 grp_idx = rxr->bnapi->index;
5596
5597 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
5598 u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr);
5599
5600 hwrm_ring_free_send_msg(bp, ring, type,
5601 close_path ? cmpl_ring_id :
5602 INVALID_HW_RING_ID);
5603 ring->fw_ring_id = INVALID_HW_RING_ID;
5604 bp->grp_info[grp_idx].agg_fw_ring_id =
5605 INVALID_HW_RING_ID;
5606 }
5607 }
5608
5609 /* The completion rings are about to be freed. After that the
5610 * IRQ doorbell will not work anymore. So we need to disable
5611 * IRQ here.
5612 */
5613 bnxt_disable_int_sync(bp);
5614
5615 if (bp->flags & BNXT_FLAG_CHIP_P5)
5616 type = RING_FREE_REQ_RING_TYPE_NQ;
5617 else
5618 type = RING_FREE_REQ_RING_TYPE_L2_CMPL;
5619 for (i = 0; i < bp->cp_nr_rings; i++) {
5620 struct bnxt_napi *bnapi = bp->bnapi[i];
5621 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
5622 struct bnxt_ring_struct *ring;
5623 int j;
5624
5625 for (j = 0; j < 2; j++) {
5626 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];
5627
5628 if (cpr2) {
5629 ring = &cpr2->cp_ring_struct;
5630 if (ring->fw_ring_id == INVALID_HW_RING_ID)
5631 continue;
5632 hwrm_ring_free_send_msg(bp, ring,
5633 RING_FREE_REQ_RING_TYPE_L2_CMPL,
5634 INVALID_HW_RING_ID);
5635 ring->fw_ring_id = INVALID_HW_RING_ID;
5636 }
5637 }
5638 ring = &cpr->cp_ring_struct;
5639 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
5640 hwrm_ring_free_send_msg(bp, ring, type,
5641 INVALID_HW_RING_ID);
5642 ring->fw_ring_id = INVALID_HW_RING_ID;
5643 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
5644 }
5645 }
5646 }
5647
5648 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max,
5649 bool shared);
5650
5651 static int bnxt_hwrm_get_rings(struct bnxt *bp)
5652 {
5653 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
5654 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
5655 struct hwrm_func_qcfg_input req = {0};
5656 int rc;
5657
5658 if (bp->hwrm_spec_code < 0x10601)
5659 return 0;
5660
5661 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
5662 req.fid = cpu_to_le16(0xffff);
5663 mutex_lock(&bp->hwrm_cmd_lock);
5664 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5665 if (rc) {
5666 mutex_unlock(&bp->hwrm_cmd_lock);
5667 return rc;
5668 }
5669
5670 hw_resc->resv_tx_rings = le16_to_cpu(resp->alloc_tx_rings);
5671 if (BNXT_NEW_RM(bp)) {
5672 u16 cp, stats;
5673
5674 hw_resc->resv_rx_rings = le16_to_cpu(resp->alloc_rx_rings);
5675 hw_resc->resv_hw_ring_grps =
5676 le32_to_cpu(resp->alloc_hw_ring_grps);
5677 hw_resc->resv_vnics = le16_to_cpu(resp->alloc_vnics);
5678 cp = le16_to_cpu(resp->alloc_cmpl_rings);
5679 stats = le16_to_cpu(resp->alloc_stat_ctx);
5680 hw_resc->resv_irqs = cp;
5681 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5682 int rx = hw_resc->resv_rx_rings;
5683 int tx = hw_resc->resv_tx_rings;
5684
5685 if (bp->flags & BNXT_FLAG_AGG_RINGS)
5686 rx >>= 1;
5687 if (cp < (rx + tx)) {
5688 bnxt_trim_rings(bp, &rx, &tx, cp, false);
5689 if (bp->flags & BNXT_FLAG_AGG_RINGS)
5690 rx <<= 1;
5691 hw_resc->resv_rx_rings = rx;
5692 hw_resc->resv_tx_rings = tx;
5693 }
5694 hw_resc->resv_irqs = le16_to_cpu(resp->alloc_msix);
5695 hw_resc->resv_hw_ring_grps = rx;
5696 }
5697 hw_resc->resv_cp_rings = cp;
5698 hw_resc->resv_stat_ctxs = stats;
5699 }
5700 mutex_unlock(&bp->hwrm_cmd_lock);
5701 return 0;
5702 }
5703
5704 /* Caller must hold bp->hwrm_cmd_lock */
5705 int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings)
5706 {
5707 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
5708 struct hwrm_func_qcfg_input req = {0};
5709 int rc;
5710
5711 if (bp->hwrm_spec_code < 0x10601)
5712 return 0;
5713
5714 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
5715 req.fid = cpu_to_le16(fid);
5716 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5717 if (!rc)
5718 *tx_rings = le16_to_cpu(resp->alloc_tx_rings);
5719
5720 return rc;
5721 }
5722
5723 static bool bnxt_rfs_supported(struct bnxt *bp);
5724
5725 static void
5726 __bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, struct hwrm_func_cfg_input *req,
5727 int tx_rings, int rx_rings, int ring_grps,
5728 int cp_rings, int stats, int vnics)
5729 {
5730 u32 enables = 0;
5731
5732 bnxt_hwrm_cmd_hdr_init(bp, req, HWRM_FUNC_CFG, -1, -1);
5733 req->fid = cpu_to_le16(0xffff);
5734 enables |= tx_rings ? FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
5735 req->num_tx_rings = cpu_to_le16(tx_rings);
5736 if (BNXT_NEW_RM(bp)) {
5737 enables |= rx_rings ? FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS : 0;
5738 enables |= stats ? FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0;
5739 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5740 enables |= cp_rings ? FUNC_CFG_REQ_ENABLES_NUM_MSIX : 0;
5741 enables |= tx_rings + ring_grps ?
5742 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
5743 enables |= rx_rings ?
5744 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0;
5745 } else {
5746 enables |= cp_rings ?
5747 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
5748 enables |= ring_grps ?
5749 FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS |
5750 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0;
5751 }
5752 enables |= vnics ? FUNC_CFG_REQ_ENABLES_NUM_VNICS : 0;
5753
5754 req->num_rx_rings = cpu_to_le16(rx_rings);
5755 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5756 req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps);
5757 req->num_msix = cpu_to_le16(cp_rings);
5758 req->num_rsscos_ctxs =
5759 cpu_to_le16(DIV_ROUND_UP(ring_grps, 64));
5760 } else {
5761 req->num_cmpl_rings = cpu_to_le16(cp_rings);
5762 req->num_hw_ring_grps = cpu_to_le16(ring_grps);
5763 req->num_rsscos_ctxs = cpu_to_le16(1);
5764 if (!(bp->flags & BNXT_FLAG_NEW_RSS_CAP) &&
5765 bnxt_rfs_supported(bp))
5766 req->num_rsscos_ctxs =
5767 cpu_to_le16(ring_grps + 1);
5768 }
5769 req->num_stat_ctxs = cpu_to_le16(stats);
5770 req->num_vnics = cpu_to_le16(vnics);
5771 }
5772 req->enables = cpu_to_le32(enables);
5773 }
5774
5775 static void
5776 __bnxt_hwrm_reserve_vf_rings(struct bnxt *bp,
5777 struct hwrm_func_vf_cfg_input *req, int tx_rings,
5778 int rx_rings, int ring_grps, int cp_rings,
5779 int stats, int vnics)
5780 {
5781 u32 enables = 0;
5782
5783 bnxt_hwrm_cmd_hdr_init(bp, req, HWRM_FUNC_VF_CFG, -1, -1);
5784 enables |= tx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
5785 enables |= rx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS |
5786 FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0;
5787 enables |= stats ? FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0;
5788 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5789 enables |= tx_rings + ring_grps ?
5790 FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
5791 } else {
5792 enables |= cp_rings ?
5793 FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
5794 enables |= ring_grps ?
5795 FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0;
5796 }
5797 enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0;
5798 enables |= FUNC_VF_CFG_REQ_ENABLES_NUM_L2_CTXS;
5799
5800 req->num_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
5801 req->num_tx_rings = cpu_to_le16(tx_rings);
5802 req->num_rx_rings = cpu_to_le16(rx_rings);
5803 if (bp->flags & BNXT_FLAG_CHIP_P5) {
5804 req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps);
5805 req->num_rsscos_ctxs = cpu_to_le16(DIV_ROUND_UP(ring_grps, 64));
5806 } else {
5807 req->num_cmpl_rings = cpu_to_le16(cp_rings);
5808 req->num_hw_ring_grps = cpu_to_le16(ring_grps);
5809 req->num_rsscos_ctxs = cpu_to_le16(BNXT_VF_MAX_RSS_CTX);
5810 }
5811 req->num_stat_ctxs = cpu_to_le16(stats);
5812 req->num_vnics = cpu_to_le16(vnics);
5813
5814 req->enables = cpu_to_le32(enables);
5815 }
5816
5817 static int
5818 bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
5819 int ring_grps, int cp_rings, int stats, int vnics)
5820 {
5821 struct hwrm_func_cfg_input req = {0};
5822 int rc;
5823
5824 __bnxt_hwrm_reserve_pf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
5825 cp_rings, stats, vnics);
5826 if (!req.enables)
5827 return 0;
5828
5829 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5830 if (rc)
5831 return rc;
5832
5833 if (bp->hwrm_spec_code < 0x10601)
5834 bp->hw_resc.resv_tx_rings = tx_rings;
5835
5836 return bnxt_hwrm_get_rings(bp);
5837 }
5838
5839 static int
5840 bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
5841 int ring_grps, int cp_rings, int stats, int vnics)
5842 {
5843 struct hwrm_func_vf_cfg_input req = {0};
5844 int rc;
5845
5846 if (!BNXT_NEW_RM(bp)) {
5847 bp->hw_resc.resv_tx_rings = tx_rings;
5848 return 0;
5849 }
5850
5851 __bnxt_hwrm_reserve_vf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
5852 cp_rings, stats, vnics);
5853 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5854 if (rc)
5855 return rc;
5856
5857 return bnxt_hwrm_get_rings(bp);
5858 }
5859
5860 static int bnxt_hwrm_reserve_rings(struct bnxt *bp, int tx, int rx, int grp,
5861 int cp, int stat, int vnic)
5862 {
5863 if (BNXT_PF(bp))
5864 return bnxt_hwrm_reserve_pf_rings(bp, tx, rx, grp, cp, stat,
5865 vnic);
5866 else
5867 return bnxt_hwrm_reserve_vf_rings(bp, tx, rx, grp, cp, stat,
5868 vnic);
5869 }
5870
5871 int bnxt_nq_rings_in_use(struct bnxt *bp)
5872 {
5873 int cp = bp->cp_nr_rings;
5874 int ulp_msix, ulp_base;
5875
5876 ulp_msix = bnxt_get_ulp_msix_num(bp);
5877 if (ulp_msix) {
5878 ulp_base = bnxt_get_ulp_msix_base(bp);
5879 cp += ulp_msix;
5880 if ((ulp_base + ulp_msix) > cp)
5881 cp = ulp_base + ulp_msix;
5882 }
5883 return cp;
5884 }
5885
5886 static int bnxt_cp_rings_in_use(struct bnxt *bp)
5887 {
5888 int cp;
5889
5890 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
5891 return bnxt_nq_rings_in_use(bp);
5892
5893 cp = bp->tx_nr_rings + bp->rx_nr_rings;
5894 return cp;
5895 }
5896
5897 static int bnxt_get_func_stat_ctxs(struct bnxt *bp)
5898 {
5899 int ulp_stat = bnxt_get_ulp_stat_ctxs(bp);
5900 int cp = bp->cp_nr_rings;
5901
5902 if (!ulp_stat)
5903 return cp;
5904
5905 if (bnxt_nq_rings_in_use(bp) > cp + bnxt_get_ulp_msix_num(bp))
5906 return bnxt_get_ulp_msix_base(bp) + ulp_stat;
5907
5908 return cp + ulp_stat;
5909 }
5910
5911 static bool bnxt_need_reserve_rings(struct bnxt *bp)
5912 {
5913 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
5914 int cp = bnxt_cp_rings_in_use(bp);
5915 int nq = bnxt_nq_rings_in_use(bp);
5916 int rx = bp->rx_nr_rings, stat;
5917 int vnic = 1, grp = rx;
5918
5919 if (bp->hwrm_spec_code < 0x10601)
5920 return false;
5921
5922 if (hw_resc->resv_tx_rings != bp->tx_nr_rings)
5923 return true;
5924
5925 if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5))
5926 vnic = rx + 1;
5927 if (bp->flags & BNXT_FLAG_AGG_RINGS)
5928 rx <<= 1;
5929 stat = bnxt_get_func_stat_ctxs(bp);
5930 if (BNXT_NEW_RM(bp) &&
5931 (hw_resc->resv_rx_rings != rx || hw_resc->resv_cp_rings != cp ||
5932 hw_resc->resv_vnics != vnic || hw_resc->resv_stat_ctxs != stat ||
5933 (hw_resc->resv_hw_ring_grps != grp &&
5934 !(bp->flags & BNXT_FLAG_CHIP_P5))))
5935 return true;
5936 if ((bp->flags & BNXT_FLAG_CHIP_P5) && BNXT_PF(bp) &&
5937 hw_resc->resv_irqs != nq)
5938 return true;
5939 return false;
5940 }
5941
5942 static int __bnxt_reserve_rings(struct bnxt *bp)
5943 {
5944 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
5945 int cp = bnxt_nq_rings_in_use(bp);
5946 int tx = bp->tx_nr_rings;
5947 int rx = bp->rx_nr_rings;
5948 int grp, rx_rings, rc;
5949 int vnic = 1, stat;
5950 bool sh = false;
5951
5952 if (!bnxt_need_reserve_rings(bp))
5953 return 0;
5954
5955 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
5956 sh = true;
5957 if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5))
5958 vnic = rx + 1;
5959 if (bp->flags & BNXT_FLAG_AGG_RINGS)
5960 rx <<= 1;
5961 grp = bp->rx_nr_rings;
5962 stat = bnxt_get_func_stat_ctxs(bp);
5963
5964 rc = bnxt_hwrm_reserve_rings(bp, tx, rx, grp, cp, stat, vnic);
5965 if (rc)
5966 return rc;
5967
5968 tx = hw_resc->resv_tx_rings;
5969 if (BNXT_NEW_RM(bp)) {
5970 rx = hw_resc->resv_rx_rings;
5971 cp = hw_resc->resv_irqs;
5972 grp = hw_resc->resv_hw_ring_grps;
5973 vnic = hw_resc->resv_vnics;
5974 stat = hw_resc->resv_stat_ctxs;
5975 }
5976
5977 rx_rings = rx;
5978 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
5979 if (rx >= 2) {
5980 rx_rings = rx >> 1;
5981 } else {
5982 if (netif_running(bp->dev))
5983 return -ENOMEM;
5984
5985 bp->flags &= ~BNXT_FLAG_AGG_RINGS;
5986 bp->flags |= BNXT_FLAG_NO_AGG_RINGS;
5987 bp->dev->hw_features &= ~NETIF_F_LRO;
5988 bp->dev->features &= ~NETIF_F_LRO;
5989 bnxt_set_ring_params(bp);
5990 }
5991 }
5992 rx_rings = min_t(int, rx_rings, grp);
5993 cp = min_t(int, cp, bp->cp_nr_rings);
5994 if (stat > bnxt_get_ulp_stat_ctxs(bp))
5995 stat -= bnxt_get_ulp_stat_ctxs(bp);
5996 cp = min_t(int, cp, stat);
5997 rc = bnxt_trim_rings(bp, &rx_rings, &tx, cp, sh);
5998 if (bp->flags & BNXT_FLAG_AGG_RINGS)
5999 rx = rx_rings << 1;
6000 cp = sh ? max_t(int, tx, rx_rings) : tx + rx_rings;
6001 bp->tx_nr_rings = tx;
6002 bp->rx_nr_rings = rx_rings;
6003 bp->cp_nr_rings = cp;
6004
6005 if (!tx || !rx || !cp || !grp || !vnic || !stat)
6006 return -ENOMEM;
6007
6008 return rc;
6009 }
6010
6011 static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
6012 int ring_grps, int cp_rings, int stats,
6013 int vnics)
6014 {
6015 struct hwrm_func_vf_cfg_input req = {0};
6016 u32 flags;
6017
6018 if (!BNXT_NEW_RM(bp))
6019 return 0;
6020
6021 __bnxt_hwrm_reserve_vf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
6022 cp_rings, stats, vnics);
6023 flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST |
6024 FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST |
6025 FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST |
6026 FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST |
6027 FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST |
6028 FUNC_VF_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST;
6029 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
6030 flags |= FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST;
6031
6032 req.flags = cpu_to_le32(flags);
6033 return hwrm_send_message_silent(bp, &req, sizeof(req),
6034 HWRM_CMD_TIMEOUT);
6035 }
6036
6037 static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
6038 int ring_grps, int cp_rings, int stats,
6039 int vnics)
6040 {
6041 struct hwrm_func_cfg_input req = {0};
6042 u32 flags;
6043
6044 __bnxt_hwrm_reserve_pf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
6045 cp_rings, stats, vnics);
6046 flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST;
6047 if (BNXT_NEW_RM(bp)) {
6048 flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST |
6049 FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST |
6050 FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST |
6051 FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST;
6052 if (bp->flags & BNXT_FLAG_CHIP_P5)
6053 flags |= FUNC_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST |
6054 FUNC_CFG_REQ_FLAGS_NQ_ASSETS_TEST;
6055 else
6056 flags |= FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST;
6057 }
6058
6059 req.flags = cpu_to_le32(flags);
6060 return hwrm_send_message_silent(bp, &req, sizeof(req),
6061 HWRM_CMD_TIMEOUT);
6062 }
6063
6064 static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings,
6065 int ring_grps, int cp_rings, int stats,
6066 int vnics)
6067 {
6068 if (bp->hwrm_spec_code < 0x10801)
6069 return 0;
6070
6071 if (BNXT_PF(bp))
6072 return bnxt_hwrm_check_pf_rings(bp, tx_rings, rx_rings,
6073 ring_grps, cp_rings, stats,
6074 vnics);
6075
6076 return bnxt_hwrm_check_vf_rings(bp, tx_rings, rx_rings, ring_grps,
6077 cp_rings, stats, vnics);
6078 }
6079
6080 static void bnxt_hwrm_coal_params_qcaps(struct bnxt *bp)
6081 {
6082 struct hwrm_ring_aggint_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
6083 struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
6084 struct hwrm_ring_aggint_qcaps_input req = {0};
6085 int rc;
6086
6087 coal_cap->cmpl_params = BNXT_LEGACY_COAL_CMPL_PARAMS;
6088 coal_cap->num_cmpl_dma_aggr_max = 63;
6089 coal_cap->num_cmpl_dma_aggr_during_int_max = 63;
6090 coal_cap->cmpl_aggr_dma_tmr_max = 65535;
6091 coal_cap->cmpl_aggr_dma_tmr_during_int_max = 65535;
6092 coal_cap->int_lat_tmr_min_max = 65535;
6093 coal_cap->int_lat_tmr_max_max = 65535;
6094 coal_cap->num_cmpl_aggr_int_max = 65535;
6095 coal_cap->timer_units = 80;
6096
6097 if (bp->hwrm_spec_code < 0x10902)
6098 return;
6099
6100 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_AGGINT_QCAPS, -1, -1);
6101 mutex_lock(&bp->hwrm_cmd_lock);
6102 rc = _hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
6103 if (!rc) {
6104 coal_cap->cmpl_params = le32_to_cpu(resp->cmpl_params);
6105 coal_cap->nq_params = le32_to_cpu(resp->nq_params);
6106 coal_cap->num_cmpl_dma_aggr_max =
6107 le16_to_cpu(resp->num_cmpl_dma_aggr_max);
6108 coal_cap->num_cmpl_dma_aggr_during_int_max =
6109 le16_to_cpu(resp->num_cmpl_dma_aggr_during_int_max);
6110 coal_cap->cmpl_aggr_dma_tmr_max =
6111 le16_to_cpu(resp->cmpl_aggr_dma_tmr_max);
6112 coal_cap->cmpl_aggr_dma_tmr_during_int_max =
6113 le16_to_cpu(resp->cmpl_aggr_dma_tmr_during_int_max);
6114 coal_cap->int_lat_tmr_min_max =
6115 le16_to_cpu(resp->int_lat_tmr_min_max);
6116 coal_cap->int_lat_tmr_max_max =
6117 le16_to_cpu(resp->int_lat_tmr_max_max);
6118 coal_cap->num_cmpl_aggr_int_max =
6119 le16_to_cpu(resp->num_cmpl_aggr_int_max);
6120 coal_cap->timer_units = le16_to_cpu(resp->timer_units);
6121 }
6122 mutex_unlock(&bp->hwrm_cmd_lock);
6123 }
6124
6125 static u16 bnxt_usec_to_coal_tmr(struct bnxt *bp, u16 usec)
6126 {
6127 struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
6128
6129 return usec * 1000 / coal_cap->timer_units;
6130 }
6131
6132 static void bnxt_hwrm_set_coal_params(struct bnxt *bp,
6133 struct bnxt_coal *hw_coal,
6134 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req)
6135 {
6136 struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
6137 u32 cmpl_params = coal_cap->cmpl_params;
6138 u16 val, tmr, max, flags = 0;
6139
6140 max = hw_coal->bufs_per_record * 128;
6141 if (hw_coal->budget)
6142 max = hw_coal->bufs_per_record * hw_coal->budget;
6143 max = min_t(u16, max, coal_cap->num_cmpl_aggr_int_max);
6144
6145 val = clamp_t(u16, hw_coal->coal_bufs, 1, max);
6146 req->num_cmpl_aggr_int = cpu_to_le16(val);
6147
6148 val = min_t(u16, val, coal_cap->num_cmpl_dma_aggr_max);
6149 req->num_cmpl_dma_aggr = cpu_to_le16(val);
6150
6151 val = clamp_t(u16, hw_coal->coal_bufs_irq, 1,
6152 coal_cap->num_cmpl_dma_aggr_during_int_max);
6153 req->num_cmpl_dma_aggr_during_int = cpu_to_le16(val);
6154
6155 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks);
6156 tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_max_max);
6157 req->int_lat_tmr_max = cpu_to_le16(tmr);
6158
6159 /* min timer set to 1/2 of interrupt timer */
6160 if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_INT_LAT_TMR_MIN) {
6161 val = tmr / 2;
6162 val = clamp_t(u16, val, 1, coal_cap->int_lat_tmr_min_max);
6163 req->int_lat_tmr_min = cpu_to_le16(val);
6164 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE);
6165 }
6166
6167 /* buf timer set to 1/4 of interrupt timer */
6168 val = clamp_t(u16, tmr / 4, 1, coal_cap->cmpl_aggr_dma_tmr_max);
6169 req->cmpl_aggr_dma_tmr = cpu_to_le16(val);
6170
6171 if (cmpl_params &
6172 RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_NUM_CMPL_DMA_AGGR_DURING_INT) {
6173 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks_irq);
6174 val = clamp_t(u16, tmr, 1,
6175 coal_cap->cmpl_aggr_dma_tmr_during_int_max);
6176 req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(val);
6177 req->enables |=
6178 cpu_to_le16(BNXT_COAL_CMPL_AGGR_TMR_DURING_INT_ENABLE);
6179 }
6180
6181 if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_TIMER_RESET)
6182 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET;
6183 if ((cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_RING_IDLE) &&
6184 hw_coal->idle_thresh && hw_coal->coal_ticks < hw_coal->idle_thresh)
6185 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE;
6186 req->flags = cpu_to_le16(flags);
6187 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_ENABLES);
6188 }
6189
6190 /* Caller holds bp->hwrm_cmd_lock */
6191 static int __bnxt_hwrm_set_coal_nq(struct bnxt *bp, struct bnxt_napi *bnapi,
6192 struct bnxt_coal *hw_coal)
6193 {
6194 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req = {0};
6195 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
6196 struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
6197 u32 nq_params = coal_cap->nq_params;
6198 u16 tmr;
6199
6200 if (!(nq_params & RING_AGGINT_QCAPS_RESP_NQ_PARAMS_INT_LAT_TMR_MIN))
6201 return 0;
6202
6203 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS,
6204 -1, -1);
6205 req.ring_id = cpu_to_le16(cpr->cp_ring_struct.fw_ring_id);
6206 req.flags =
6207 cpu_to_le16(RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_IS_NQ);
6208
6209 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks) / 2;
6210 tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_min_max);
6211 req.int_lat_tmr_min = cpu_to_le16(tmr);
6212 req.enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE);
6213 return _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
6214 }
6215
6216 int bnxt_hwrm_set_ring_coal(struct bnxt *bp, struct bnxt_napi *bnapi)
6217 {
6218 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req_rx = {0};
6219 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
6220 struct bnxt_coal coal;
6221
6222 /* Tick values in micro seconds.
6223 * 1 coal_buf x bufs_per_record = 1 completion record.
6224 */
6225 memcpy(&coal, &bp->rx_coal, sizeof(struct bnxt_coal));
6226
6227 coal.coal_ticks = cpr->rx_ring_coal.coal_ticks;
6228 coal.coal_bufs = cpr->rx_ring_coal.coal_bufs;
6229
6230 if (!bnapi->rx_ring)
6231 return -ENODEV;
6232
6233 bnxt_hwrm_cmd_hdr_init(bp, &req_rx,
6234 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1);
6235
6236 bnxt_hwrm_set_coal_params(bp, &coal, &req_rx);
6237
6238 req_rx.ring_id = cpu_to_le16(bnxt_cp_ring_for_rx(bp, bnapi->rx_ring));
6239
6240 return hwrm_send_message(bp, &req_rx, sizeof(req_rx),
6241 HWRM_CMD_TIMEOUT);
6242 }
6243
6244 int bnxt_hwrm_set_coal(struct bnxt *bp)
6245 {
6246 int i, rc = 0;
6247 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req_rx = {0},
6248 req_tx = {0}, *req;
6249
6250 bnxt_hwrm_cmd_hdr_init(bp, &req_rx,
6251 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1);
6252 bnxt_hwrm_cmd_hdr_init(bp, &req_tx,
6253 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1);
6254
6255 bnxt_hwrm_set_coal_params(bp, &bp->rx_coal, &req_rx);
6256 bnxt_hwrm_set_coal_params(bp, &bp->tx_coal, &req_tx);
6257
6258 mutex_lock(&bp->hwrm_cmd_lock);
6259 for (i = 0; i < bp->cp_nr_rings; i++) {
6260 struct bnxt_napi *bnapi = bp->bnapi[i];
6261 struct bnxt_coal *hw_coal;
6262 u16 ring_id;
6263
6264 req = &req_rx;
6265 if (!bnapi->rx_ring) {
6266 ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring);
6267 req = &req_tx;
6268 } else {
6269 ring_id = bnxt_cp_ring_for_rx(bp, bnapi->rx_ring);
6270 }
6271 req->ring_id = cpu_to_le16(ring_id);
6272
6273 rc = _hwrm_send_message(bp, req, sizeof(*req),
6274 HWRM_CMD_TIMEOUT);
6275 if (rc)
6276 break;
6277
6278 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
6279 continue;
6280
6281 if (bnapi->rx_ring && bnapi->tx_ring) {
6282 req = &req_tx;
6283 ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring);
6284 req->ring_id = cpu_to_le16(ring_id);
6285 rc = _hwrm_send_message(bp, req, sizeof(*req),
6286 HWRM_CMD_TIMEOUT);
6287 if (rc)
6288 break;
6289 }
6290 if (bnapi->rx_ring)
6291 hw_coal = &bp->rx_coal;
6292 else
6293 hw_coal = &bp->tx_coal;
6294 __bnxt_hwrm_set_coal_nq(bp, bnapi, hw_coal);
6295 }
6296 mutex_unlock(&bp->hwrm_cmd_lock);
6297 return rc;
6298 }
6299
6300 static void bnxt_hwrm_stat_ctx_free(struct bnxt *bp)
6301 {
6302 struct hwrm_stat_ctx_free_input req = {0};
6303 int i;
6304
6305 if (!bp->bnapi)
6306 return;
6307
6308 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
6309 return;
6310
6311 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_FREE, -1, -1);
6312
6313 mutex_lock(&bp->hwrm_cmd_lock);
6314 for (i = 0; i < bp->cp_nr_rings; i++) {
6315 struct bnxt_napi *bnapi = bp->bnapi[i];
6316 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
6317
6318 if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) {
6319 req.stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id);
6320
6321 _hwrm_send_message(bp, &req, sizeof(req),
6322 HWRM_CMD_TIMEOUT);
6323
6324 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
6325 }
6326 }
6327 mutex_unlock(&bp->hwrm_cmd_lock);
6328 }
6329
6330 static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp)
6331 {
6332 int rc = 0, i;
6333 struct hwrm_stat_ctx_alloc_input req = {0};
6334 struct hwrm_stat_ctx_alloc_output *resp = bp->hwrm_cmd_resp_addr;
6335
6336 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
6337 return 0;
6338
6339 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_ALLOC, -1, -1);
6340
6341 req.stats_dma_length = cpu_to_le16(bp->hw_ring_stats_size);
6342 req.update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000);
6343
6344 mutex_lock(&bp->hwrm_cmd_lock);
6345 for (i = 0; i < bp->cp_nr_rings; i++) {
6346 struct bnxt_napi *bnapi = bp->bnapi[i];
6347 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
6348
6349 req.stats_dma_addr = cpu_to_le64(cpr->hw_stats_map);
6350
6351 rc = _hwrm_send_message(bp, &req, sizeof(req),
6352 HWRM_CMD_TIMEOUT);
6353 if (rc)
6354 break;
6355
6356 cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id);
6357
6358 bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
6359 }
6360 mutex_unlock(&bp->hwrm_cmd_lock);
6361 return rc;
6362 }
6363
6364 static int bnxt_hwrm_func_qcfg(struct bnxt *bp)
6365 {
6366 struct hwrm_func_qcfg_input req = {0};
6367 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
6368 u16 flags;
6369 int rc;
6370
6371 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
6372 req.fid = cpu_to_le16(0xffff);
6373 mutex_lock(&bp->hwrm_cmd_lock);
6374 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
6375 if (rc)
6376 goto func_qcfg_exit;
6377
6378 #ifdef CONFIG_BNXT_SRIOV
6379 if (BNXT_VF(bp)) {
6380 struct bnxt_vf_info *vf = &bp->vf;
6381
6382 vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK;
6383 } else {
6384 bp->pf.registered_vfs = le16_to_cpu(resp->registered_vfs);
6385 }
6386 #endif
6387 flags = le16_to_cpu(resp->flags);
6388 if (flags & (FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED |
6389 FUNC_QCFG_RESP_FLAGS_FW_LLDP_AGENT_ENABLED)) {
6390 bp->fw_cap |= BNXT_FW_CAP_LLDP_AGENT;
6391 if (flags & FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED)
6392 bp->fw_cap |= BNXT_FW_CAP_DCBX_AGENT;
6393 }
6394 if (BNXT_PF(bp) && (flags & FUNC_QCFG_RESP_FLAGS_MULTI_HOST))
6395 bp->flags |= BNXT_FLAG_MULTI_HOST;
6396
6397 switch (resp->port_partition_type) {
6398 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0:
6399 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5:
6400 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0:
6401 bp->port_partition_type = resp->port_partition_type;
6402 break;
6403 }
6404 if (bp->hwrm_spec_code < 0x10707 ||
6405 resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEB)
6406 bp->br_mode = BRIDGE_MODE_VEB;
6407 else if (resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEPA)
6408 bp->br_mode = BRIDGE_MODE_VEPA;
6409 else
6410 bp->br_mode = BRIDGE_MODE_UNDEF;
6411
6412 bp->max_mtu = le16_to_cpu(resp->max_mtu_configured);
6413 if (!bp->max_mtu)
6414 bp->max_mtu = BNXT_MAX_MTU;
6415
6416 func_qcfg_exit:
6417 mutex_unlock(&bp->hwrm_cmd_lock);
6418 return rc;
6419 }
6420
6421 static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp)
6422 {
6423 struct hwrm_func_backing_store_qcaps_input req = {0};
6424 struct hwrm_func_backing_store_qcaps_output *resp =
6425 bp->hwrm_cmd_resp_addr;
6426 int rc;
6427
6428 if (bp->hwrm_spec_code < 0x10902 || BNXT_VF(bp) || bp->ctx)
6429 return 0;
6430
6431 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_BACKING_STORE_QCAPS, -1, -1);
6432 mutex_lock(&bp->hwrm_cmd_lock);
6433 rc = _hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
6434 if (!rc) {
6435 struct bnxt_ctx_pg_info *ctx_pg;
6436 struct bnxt_ctx_mem_info *ctx;
6437 int i;
6438
6439 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
6440 if (!ctx) {
6441 rc = -ENOMEM;
6442 goto ctx_err;
6443 }
6444 ctx_pg = kzalloc(sizeof(*ctx_pg) * (bp->max_q + 1), GFP_KERNEL);
6445 if (!ctx_pg) {
6446 kfree(ctx);
6447 rc = -ENOMEM;
6448 goto ctx_err;
6449 }
6450 for (i = 0; i < bp->max_q + 1; i++, ctx_pg++)
6451 ctx->tqm_mem[i] = ctx_pg;
6452
6453 bp->ctx = ctx;
6454 ctx->qp_max_entries = le32_to_cpu(resp->qp_max_entries);
6455 ctx->qp_min_qp1_entries = le16_to_cpu(resp->qp_min_qp1_entries);
6456 ctx->qp_max_l2_entries = le16_to_cpu(resp->qp_max_l2_entries);
6457 ctx->qp_entry_size = le16_to_cpu(resp->qp_entry_size);
6458 ctx->srq_max_l2_entries = le16_to_cpu(resp->srq_max_l2_entries);
6459 ctx->srq_max_entries = le32_to_cpu(resp->srq_max_entries);
6460 ctx->srq_entry_size = le16_to_cpu(resp->srq_entry_size);
6461 ctx->cq_max_l2_entries = le16_to_cpu(resp->cq_max_l2_entries);
6462 ctx->cq_max_entries = le32_to_cpu(resp->cq_max_entries);
6463 ctx->cq_entry_size = le16_to_cpu(resp->cq_entry_size);
6464 ctx->vnic_max_vnic_entries =
6465 le16_to_cpu(resp->vnic_max_vnic_entries);
6466 ctx->vnic_max_ring_table_entries =
6467 le16_to_cpu(resp->vnic_max_ring_table_entries);
6468 ctx->vnic_entry_size = le16_to_cpu(resp->vnic_entry_size);
6469 ctx->stat_max_entries = le32_to_cpu(resp->stat_max_entries);
6470 ctx->stat_entry_size = le16_to_cpu(resp->stat_entry_size);
6471 ctx->tqm_entry_size = le16_to_cpu(resp->tqm_entry_size);
6472 ctx->tqm_min_entries_per_ring =
6473 le32_to_cpu(resp->tqm_min_entries_per_ring);
6474 ctx->tqm_max_entries_per_ring =
6475 le32_to_cpu(resp->tqm_max_entries_per_ring);
6476 ctx->tqm_entries_multiple = resp->tqm_entries_multiple;
6477 if (!ctx->tqm_entries_multiple)
6478 ctx->tqm_entries_multiple = 1;
6479 ctx->mrav_max_entries = le32_to_cpu(resp->mrav_max_entries);
6480 ctx->mrav_entry_size = le16_to_cpu(resp->mrav_entry_size);
6481 ctx->mrav_num_entries_units =
6482 le16_to_cpu(resp->mrav_num_entries_units);
6483 ctx->tim_entry_size = le16_to_cpu(resp->tim_entry_size);
6484 ctx->tim_max_entries = le32_to_cpu(resp->tim_max_entries);
6485 ctx->ctx_kind_initializer = resp->ctx_kind_initializer;
6486 } else {
6487 rc = 0;
6488 }
6489 ctx_err:
6490 mutex_unlock(&bp->hwrm_cmd_lock);
6491 return rc;
6492 }
6493
6494 static void bnxt_hwrm_set_pg_attr(struct bnxt_ring_mem_info *rmem, u8 *pg_attr,
6495 __le64 *pg_dir)
6496 {
6497 u8 pg_size = 0;
6498
6499 if (BNXT_PAGE_SHIFT == 13)
6500 pg_size = 1 << 4;
6501 else if (BNXT_PAGE_SIZE == 16)
6502 pg_size = 2 << 4;
6503
6504 *pg_attr = pg_size;
6505 if (rmem->depth >= 1) {
6506 if (rmem->depth == 2)
6507 *pg_attr |= 2;
6508 else
6509 *pg_attr |= 1;
6510 *pg_dir = cpu_to_le64(rmem->pg_tbl_map);
6511 } else {
6512 *pg_dir = cpu_to_le64(rmem->dma_arr[0]);
6513 }
6514 }
6515
6516 #define FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES \
6517 (FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP | \
6518 FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ | \
6519 FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ | \
6520 FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC | \
6521 FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT)
6522
6523 static int bnxt_hwrm_func_backing_store_cfg(struct bnxt *bp, u32 enables)
6524 {
6525 struct hwrm_func_backing_store_cfg_input req = {0};
6526 struct bnxt_ctx_mem_info *ctx = bp->ctx;
6527 struct bnxt_ctx_pg_info *ctx_pg;
6528 __le32 *num_entries;
6529 __le64 *pg_dir;
6530 u32 flags = 0;
6531 u8 *pg_attr;
6532 u32 ena;
6533 int i;
6534
6535 if (!ctx)
6536 return 0;
6537
6538 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_BACKING_STORE_CFG, -1, -1);
6539 req.enables = cpu_to_le32(enables);
6540
6541 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP) {
6542 ctx_pg = &ctx->qp_mem;
6543 req.qp_num_entries = cpu_to_le32(ctx_pg->entries);
6544 req.qp_num_qp1_entries = cpu_to_le16(ctx->qp_min_qp1_entries);
6545 req.qp_num_l2_entries = cpu_to_le16(ctx->qp_max_l2_entries);
6546 req.qp_entry_size = cpu_to_le16(ctx->qp_entry_size);
6547 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
6548 &req.qpc_pg_size_qpc_lvl,
6549 &req.qpc_page_dir);
6550 }
6551 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ) {
6552 ctx_pg = &ctx->srq_mem;
6553 req.srq_num_entries = cpu_to_le32(ctx_pg->entries);
6554 req.srq_num_l2_entries = cpu_to_le16(ctx->srq_max_l2_entries);
6555 req.srq_entry_size = cpu_to_le16(ctx->srq_entry_size);
6556 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
6557 &req.srq_pg_size_srq_lvl,
6558 &req.srq_page_dir);
6559 }
6560 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ) {
6561 ctx_pg = &ctx->cq_mem;
6562 req.cq_num_entries = cpu_to_le32(ctx_pg->entries);
6563 req.cq_num_l2_entries = cpu_to_le16(ctx->cq_max_l2_entries);
6564 req.cq_entry_size = cpu_to_le16(ctx->cq_entry_size);
6565 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req.cq_pg_size_cq_lvl,
6566 &req.cq_page_dir);
6567 }
6568 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC) {
6569 ctx_pg = &ctx->vnic_mem;
6570 req.vnic_num_vnic_entries =
6571 cpu_to_le16(ctx->vnic_max_vnic_entries);
6572 req.vnic_num_ring_table_entries =
6573 cpu_to_le16(ctx->vnic_max_ring_table_entries);
6574 req.vnic_entry_size = cpu_to_le16(ctx->vnic_entry_size);
6575 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
6576 &req.vnic_pg_size_vnic_lvl,
6577 &req.vnic_page_dir);
6578 }
6579 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) {
6580 ctx_pg = &ctx->stat_mem;
6581 req.stat_num_entries = cpu_to_le32(ctx->stat_max_entries);
6582 req.stat_entry_size = cpu_to_le16(ctx->stat_entry_size);
6583 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
6584 &req.stat_pg_size_stat_lvl,
6585 &req.stat_page_dir);
6586 }
6587 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV) {
6588 ctx_pg = &ctx->mrav_mem;
6589 req.mrav_num_entries = cpu_to_le32(ctx_pg->entries);
6590 if (ctx->mrav_num_entries_units)
6591 flags |=
6592 FUNC_BACKING_STORE_CFG_REQ_FLAGS_MRAV_RESERVATION_SPLIT;
6593 req.mrav_entry_size = cpu_to_le16(ctx->mrav_entry_size);
6594 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
6595 &req.mrav_pg_size_mrav_lvl,
6596 &req.mrav_page_dir);
6597 }
6598 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM) {
6599 ctx_pg = &ctx->tim_mem;
6600 req.tim_num_entries = cpu_to_le32(ctx_pg->entries);
6601 req.tim_entry_size = cpu_to_le16(ctx->tim_entry_size);
6602 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
6603 &req.tim_pg_size_tim_lvl,
6604 &req.tim_page_dir);
6605 }
6606 for (i = 0, num_entries = &req.tqm_sp_num_entries,
6607 pg_attr = &req.tqm_sp_pg_size_tqm_sp_lvl,
6608 pg_dir = &req.tqm_sp_page_dir,
6609 ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP;
6610 i < 9; i++, num_entries++, pg_attr++, pg_dir++, ena <<= 1) {
6611 if (!(enables & ena))
6612 continue;
6613
6614 req.tqm_entry_size = cpu_to_le16(ctx->tqm_entry_size);
6615 ctx_pg = ctx->tqm_mem[i];
6616 *num_entries = cpu_to_le32(ctx_pg->entries);
6617 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, pg_attr, pg_dir);
6618 }
6619 req.flags = cpu_to_le32(flags);
6620 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
6621 }
6622
6623 static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp,
6624 struct bnxt_ctx_pg_info *ctx_pg)
6625 {
6626 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
6627
6628 rmem->page_size = BNXT_PAGE_SIZE;
6629 rmem->pg_arr = ctx_pg->ctx_pg_arr;
6630 rmem->dma_arr = ctx_pg->ctx_dma_arr;
6631 rmem->flags = BNXT_RMEM_VALID_PTE_FLAG;
6632 if (rmem->depth >= 1)
6633 rmem->flags |= BNXT_RMEM_USE_FULL_PAGE_FLAG;
6634 return bnxt_alloc_ring(bp, rmem);
6635 }
6636
6637 static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp,
6638 struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size,
6639 u8 depth, bool use_init_val)
6640 {
6641 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
6642 int rc;
6643
6644 if (!mem_size)
6645 return -EINVAL;
6646
6647 ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE);
6648 if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) {
6649 ctx_pg->nr_pages = 0;
6650 return -EINVAL;
6651 }
6652 if (ctx_pg->nr_pages > MAX_CTX_PAGES || depth > 1) {
6653 int nr_tbls, i;
6654
6655 rmem->depth = 2;
6656 ctx_pg->ctx_pg_tbl = kcalloc(MAX_CTX_PAGES, sizeof(ctx_pg),
6657 GFP_KERNEL);
6658 if (!ctx_pg->ctx_pg_tbl)
6659 return -ENOMEM;
6660 nr_tbls = DIV_ROUND_UP(ctx_pg->nr_pages, MAX_CTX_PAGES);
6661 rmem->nr_pages = nr_tbls;
6662 rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg);
6663 if (rc)
6664 return rc;
6665 for (i = 0; i < nr_tbls; i++) {
6666 struct bnxt_ctx_pg_info *pg_tbl;
6667
6668 pg_tbl = kzalloc(sizeof(*pg_tbl), GFP_KERNEL);
6669 if (!pg_tbl)
6670 return -ENOMEM;
6671 ctx_pg->ctx_pg_tbl[i] = pg_tbl;
6672 rmem = &pg_tbl->ring_mem;
6673 rmem->pg_tbl = ctx_pg->ctx_pg_arr[i];
6674 rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i];
6675 rmem->depth = 1;
6676 rmem->nr_pages = MAX_CTX_PAGES;
6677 if (use_init_val)
6678 rmem->init_val = bp->ctx->ctx_kind_initializer;
6679 if (i == (nr_tbls - 1)) {
6680 int rem = ctx_pg->nr_pages % MAX_CTX_PAGES;
6681
6682 if (rem)
6683 rmem->nr_pages = rem;
6684 }
6685 rc = bnxt_alloc_ctx_mem_blk(bp, pg_tbl);
6686 if (rc)
6687 break;
6688 }
6689 } else {
6690 rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE);
6691 if (rmem->nr_pages > 1 || depth)
6692 rmem->depth = 1;
6693 if (use_init_val)
6694 rmem->init_val = bp->ctx->ctx_kind_initializer;
6695 rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg);
6696 }
6697 return rc;
6698 }
6699
6700 static void bnxt_free_ctx_pg_tbls(struct bnxt *bp,
6701 struct bnxt_ctx_pg_info *ctx_pg)
6702 {
6703 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
6704
6705 if (rmem->depth > 1 || ctx_pg->nr_pages > MAX_CTX_PAGES ||
6706 ctx_pg->ctx_pg_tbl) {
6707 int i, nr_tbls = rmem->nr_pages;
6708
6709 for (i = 0; i < nr_tbls; i++) {
6710 struct bnxt_ctx_pg_info *pg_tbl;
6711 struct bnxt_ring_mem_info *rmem2;
6712
6713 pg_tbl = ctx_pg->ctx_pg_tbl[i];
6714 if (!pg_tbl)
6715 continue;
6716 rmem2 = &pg_tbl->ring_mem;
6717 bnxt_free_ring(bp, rmem2);
6718 ctx_pg->ctx_pg_arr[i] = NULL;
6719 kfree(pg_tbl);
6720 ctx_pg->ctx_pg_tbl[i] = NULL;
6721 }
6722 kfree(ctx_pg->ctx_pg_tbl);
6723 ctx_pg->ctx_pg_tbl = NULL;
6724 }
6725 bnxt_free_ring(bp, rmem);
6726 ctx_pg->nr_pages = 0;
6727 }
6728
6729 static void bnxt_free_ctx_mem(struct bnxt *bp)
6730 {
6731 struct bnxt_ctx_mem_info *ctx = bp->ctx;
6732 int i;
6733
6734 if (!ctx)
6735 return;
6736
6737 if (ctx->tqm_mem[0]) {
6738 for (i = 0; i < bp->max_q + 1; i++)
6739 bnxt_free_ctx_pg_tbls(bp, ctx->tqm_mem[i]);
6740 kfree(ctx->tqm_mem[0]);
6741 ctx->tqm_mem[0] = NULL;
6742 }
6743
6744 bnxt_free_ctx_pg_tbls(bp, &ctx->tim_mem);
6745 bnxt_free_ctx_pg_tbls(bp, &ctx->mrav_mem);
6746 bnxt_free_ctx_pg_tbls(bp, &ctx->stat_mem);
6747 bnxt_free_ctx_pg_tbls(bp, &ctx->vnic_mem);
6748 bnxt_free_ctx_pg_tbls(bp, &ctx->cq_mem);
6749 bnxt_free_ctx_pg_tbls(bp, &ctx->srq_mem);
6750 bnxt_free_ctx_pg_tbls(bp, &ctx->qp_mem);
6751 ctx->flags &= ~BNXT_CTX_FLAG_INITED;
6752 }
6753
6754 static int bnxt_alloc_ctx_mem(struct bnxt *bp)
6755 {
6756 struct bnxt_ctx_pg_info *ctx_pg;
6757 struct bnxt_ctx_mem_info *ctx;
6758 u32 mem_size, ena, entries;
6759 u32 num_mr, num_ah;
6760 u32 extra_srqs = 0;
6761 u32 extra_qps = 0;
6762 u8 pg_lvl = 1;
6763 int i, rc;
6764
6765 rc = bnxt_hwrm_func_backing_store_qcaps(bp);
6766 if (rc) {
6767 netdev_err(bp->dev, "Failed querying context mem capability, rc = %d.\n",
6768 rc);
6769 return rc;
6770 }
6771 ctx = bp->ctx;
6772 if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED))
6773 return 0;
6774
6775 if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) {
6776 pg_lvl = 2;
6777 extra_qps = 65536;
6778 extra_srqs = 8192;
6779 }
6780
6781 ctx_pg = &ctx->qp_mem;
6782 ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries +
6783 extra_qps;
6784 mem_size = ctx->qp_entry_size * ctx_pg->entries;
6785 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true);
6786 if (rc)
6787 return rc;
6788
6789 ctx_pg = &ctx->srq_mem;
6790 ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs;
6791 mem_size = ctx->srq_entry_size * ctx_pg->entries;
6792 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true);
6793 if (rc)
6794 return rc;
6795
6796 ctx_pg = &ctx->cq_mem;
6797 ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2;
6798 mem_size = ctx->cq_entry_size * ctx_pg->entries;
6799 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true);
6800 if (rc)
6801 return rc;
6802
6803 ctx_pg = &ctx->vnic_mem;
6804 ctx_pg->entries = ctx->vnic_max_vnic_entries +
6805 ctx->vnic_max_ring_table_entries;
6806 mem_size = ctx->vnic_entry_size * ctx_pg->entries;
6807 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, true);
6808 if (rc)
6809 return rc;
6810
6811 ctx_pg = &ctx->stat_mem;
6812 ctx_pg->entries = ctx->stat_max_entries;
6813 mem_size = ctx->stat_entry_size * ctx_pg->entries;
6814 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, true);
6815 if (rc)
6816 return rc;
6817
6818 ena = 0;
6819 if (!(bp->flags & BNXT_FLAG_ROCE_CAP))
6820 goto skip_rdma;
6821
6822 ctx_pg = &ctx->mrav_mem;
6823 /* 128K extra is needed to accommodate static AH context
6824 * allocation by f/w.
6825 */
6826 num_mr = 1024 * 256;
6827 num_ah = 1024 * 128;
6828 ctx_pg->entries = num_mr + num_ah;
6829 mem_size = ctx->mrav_entry_size * ctx_pg->entries;
6830 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2, true);
6831 if (rc)
6832 return rc;
6833 ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV;
6834 if (ctx->mrav_num_entries_units)
6835 ctx_pg->entries =
6836 ((num_mr / ctx->mrav_num_entries_units) << 16) |
6837 (num_ah / ctx->mrav_num_entries_units);
6838
6839 ctx_pg = &ctx->tim_mem;
6840 ctx_pg->entries = ctx->qp_mem.entries;
6841 mem_size = ctx->tim_entry_size * ctx_pg->entries;
6842 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false);
6843 if (rc)
6844 return rc;
6845 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM;
6846
6847 skip_rdma:
6848 entries = ctx->qp_max_l2_entries + extra_qps;
6849 entries = roundup(entries, ctx->tqm_entries_multiple);
6850 entries = clamp_t(u32, entries, ctx->tqm_min_entries_per_ring,
6851 ctx->tqm_max_entries_per_ring);
6852 for (i = 0; i < bp->max_q + 1; i++) {
6853 ctx_pg = ctx->tqm_mem[i];
6854 ctx_pg->entries = entries;
6855 mem_size = ctx->tqm_entry_size * entries;
6856 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false);
6857 if (rc)
6858 return rc;
6859 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i;
6860 }
6861 ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES;
6862 rc = bnxt_hwrm_func_backing_store_cfg(bp, ena);
6863 if (rc) {
6864 netdev_err(bp->dev, "Failed configuring context mem, rc = %d.\n",
6865 rc);
6866 return rc;
6867 }
6868 ctx->flags |= BNXT_CTX_FLAG_INITED;
6869 return 0;
6870 }
6871
6872 int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp, bool all)
6873 {
6874 struct hwrm_func_resource_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
6875 struct hwrm_func_resource_qcaps_input req = {0};
6876 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
6877 int rc;
6878
6879 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_RESOURCE_QCAPS, -1, -1);
6880 req.fid = cpu_to_le16(0xffff);
6881
6882 mutex_lock(&bp->hwrm_cmd_lock);
6883 rc = _hwrm_send_message_silent(bp, &req, sizeof(req),
6884 HWRM_CMD_TIMEOUT);
6885 if (rc)
6886 goto hwrm_func_resc_qcaps_exit;
6887
6888 hw_resc->max_tx_sch_inputs = le16_to_cpu(resp->max_tx_scheduler_inputs);
6889 if (!all)
6890 goto hwrm_func_resc_qcaps_exit;
6891
6892 hw_resc->min_rsscos_ctxs = le16_to_cpu(resp->min_rsscos_ctx);
6893 hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
6894 hw_resc->min_cp_rings = le16_to_cpu(resp->min_cmpl_rings);
6895 hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
6896 hw_resc->min_tx_rings = le16_to_cpu(resp->min_tx_rings);
6897 hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
6898 hw_resc->min_rx_rings = le16_to_cpu(resp->min_rx_rings);
6899 hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
6900 hw_resc->min_hw_ring_grps = le16_to_cpu(resp->min_hw_ring_grps);
6901 hw_resc->max_hw_ring_grps = le16_to_cpu(resp->max_hw_ring_grps);
6902 hw_resc->min_l2_ctxs = le16_to_cpu(resp->min_l2_ctxs);
6903 hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
6904 hw_resc->min_vnics = le16_to_cpu(resp->min_vnics);
6905 hw_resc->max_vnics = le16_to_cpu(resp->max_vnics);
6906 hw_resc->min_stat_ctxs = le16_to_cpu(resp->min_stat_ctx);
6907 hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
6908
6909 if (bp->flags & BNXT_FLAG_CHIP_P5) {
6910 u16 max_msix = le16_to_cpu(resp->max_msix);
6911
6912 hw_resc->max_nqs = max_msix;
6913 hw_resc->max_hw_ring_grps = hw_resc->max_rx_rings;
6914 }
6915
6916 if (BNXT_PF(bp)) {
6917 struct bnxt_pf_info *pf = &bp->pf;
6918
6919 pf->vf_resv_strategy =
6920 le16_to_cpu(resp->vf_reservation_strategy);
6921 if (pf->vf_resv_strategy > BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC)
6922 pf->vf_resv_strategy = BNXT_VF_RESV_STRATEGY_MAXIMAL;
6923 }
6924 hwrm_func_resc_qcaps_exit:
6925 mutex_unlock(&bp->hwrm_cmd_lock);
6926 return rc;
6927 }
6928
6929 static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
6930 {
6931 int rc = 0;
6932 struct hwrm_func_qcaps_input req = {0};
6933 struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
6934 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
6935 u32 flags;
6936
6937 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1);
6938 req.fid = cpu_to_le16(0xffff);
6939
6940 mutex_lock(&bp->hwrm_cmd_lock);
6941 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
6942 if (rc)
6943 goto hwrm_func_qcaps_exit;
6944
6945 flags = le32_to_cpu(resp->flags);
6946 if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED)
6947 bp->flags |= BNXT_FLAG_ROCEV1_CAP;
6948 if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED)
6949 bp->flags |= BNXT_FLAG_ROCEV2_CAP;
6950 if (flags & FUNC_QCAPS_RESP_FLAGS_PCIE_STATS_SUPPORTED)
6951 bp->fw_cap |= BNXT_FW_CAP_PCIE_STATS_SUPPORTED;
6952 if (flags & FUNC_QCAPS_RESP_FLAGS_HOT_RESET_CAPABLE)
6953 bp->fw_cap |= BNXT_FW_CAP_HOT_RESET;
6954 if (flags & FUNC_QCAPS_RESP_FLAGS_EXT_STATS_SUPPORTED)
6955 bp->fw_cap |= BNXT_FW_CAP_EXT_STATS_SUPPORTED;
6956 if (flags & FUNC_QCAPS_RESP_FLAGS_ERROR_RECOVERY_CAPABLE)
6957 bp->fw_cap |= BNXT_FW_CAP_ERROR_RECOVERY;
6958 if (flags & FUNC_QCAPS_RESP_FLAGS_ERR_RECOVER_RELOAD)
6959 bp->fw_cap |= BNXT_FW_CAP_ERR_RECOVER_RELOAD;
6960
6961 bp->tx_push_thresh = 0;
6962 if (flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED)
6963 bp->tx_push_thresh = BNXT_TX_PUSH_THRESH;
6964
6965 hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
6966 hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
6967 hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
6968 hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
6969 hw_resc->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps);
6970 if (!hw_resc->max_hw_ring_grps)
6971 hw_resc->max_hw_ring_grps = hw_resc->max_tx_rings;
6972 hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
6973 hw_resc->max_vnics = le16_to_cpu(resp->max_vnics);
6974 hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
6975
6976 if (BNXT_PF(bp)) {
6977 struct bnxt_pf_info *pf = &bp->pf;
6978
6979 pf->fw_fid = le16_to_cpu(resp->fid);
6980 pf->port_id = le16_to_cpu(resp->port_id);
6981 memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN);
6982 pf->first_vf_id = le16_to_cpu(resp->first_vf_id);
6983 pf->max_vfs = le16_to_cpu(resp->max_vfs);
6984 pf->max_encap_records = le32_to_cpu(resp->max_encap_records);
6985 pf->max_decap_records = le32_to_cpu(resp->max_decap_records);
6986 pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows);
6987 pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows);
6988 pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows);
6989 pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows);
6990 bp->flags &= ~BNXT_FLAG_WOL_CAP;
6991 if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED)
6992 bp->flags |= BNXT_FLAG_WOL_CAP;
6993 } else {
6994 #ifdef CONFIG_BNXT_SRIOV
6995 struct bnxt_vf_info *vf = &bp->vf;
6996
6997 vf->fw_fid = le16_to_cpu(resp->fid);
6998 memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN);
6999 #endif
7000 }
7001
7002 hwrm_func_qcaps_exit:
7003 mutex_unlock(&bp->hwrm_cmd_lock);
7004 return rc;
7005 }
7006
7007 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp);
7008
7009 static int bnxt_hwrm_func_qcaps(struct bnxt *bp)
7010 {
7011 int rc;
7012
7013 rc = __bnxt_hwrm_func_qcaps(bp);
7014 if (rc)
7015 return rc;
7016 rc = bnxt_hwrm_queue_qportcfg(bp);
7017 if (rc) {
7018 netdev_err(bp->dev, "hwrm query qportcfg failure rc: %d\n", rc);
7019 return rc;
7020 }
7021 if (bp->hwrm_spec_code >= 0x10803) {
7022 rc = bnxt_alloc_ctx_mem(bp);
7023 if (rc)
7024 return rc;
7025 rc = bnxt_hwrm_func_resc_qcaps(bp, true);
7026 if (!rc)
7027 bp->fw_cap |= BNXT_FW_CAP_NEW_RM;
7028 }
7029 return 0;
7030 }
7031
7032 static int bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(struct bnxt *bp)
7033 {
7034 struct hwrm_cfa_adv_flow_mgnt_qcaps_input req = {0};
7035 struct hwrm_cfa_adv_flow_mgnt_qcaps_output *resp;
7036 int rc = 0;
7037 u32 flags;
7038
7039 if (!(bp->fw_cap & BNXT_FW_CAP_CFA_ADV_FLOW))
7040 return 0;
7041
7042 resp = bp->hwrm_cmd_resp_addr;
7043 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_ADV_FLOW_MGNT_QCAPS, -1, -1);
7044
7045 mutex_lock(&bp->hwrm_cmd_lock);
7046 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7047 if (rc)
7048 goto hwrm_cfa_adv_qcaps_exit;
7049
7050 flags = le32_to_cpu(resp->flags);
7051 if (flags &
7052 CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_RFS_RING_TBL_IDX_V2_SUPPORTED)
7053 bp->fw_cap |= BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2;
7054
7055 hwrm_cfa_adv_qcaps_exit:
7056 mutex_unlock(&bp->hwrm_cmd_lock);
7057 return rc;
7058 }
7059
7060 static int bnxt_map_fw_health_regs(struct bnxt *bp)
7061 {
7062 struct bnxt_fw_health *fw_health = bp->fw_health;
7063 u32 reg_base = 0xffffffff;
7064 int i;
7065
7066 /* Only pre-map the monitoring GRC registers using window 3 */
7067 for (i = 0; i < 4; i++) {
7068 u32 reg = fw_health->regs[i];
7069
7070 if (BNXT_FW_HEALTH_REG_TYPE(reg) != BNXT_FW_HEALTH_REG_TYPE_GRC)
7071 continue;
7072 if (reg_base == 0xffffffff)
7073 reg_base = reg & BNXT_GRC_BASE_MASK;
7074 if ((reg & BNXT_GRC_BASE_MASK) != reg_base)
7075 return -ERANGE;
7076 fw_health->mapped_regs[i] = BNXT_FW_HEALTH_WIN_BASE +
7077 (reg & BNXT_GRC_OFFSET_MASK);
7078 }
7079 if (reg_base == 0xffffffff)
7080 return 0;
7081
7082 writel(reg_base, bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT +
7083 BNXT_FW_HEALTH_WIN_MAP_OFF);
7084 return 0;
7085 }
7086
7087 static int bnxt_hwrm_error_recovery_qcfg(struct bnxt *bp)
7088 {
7089 struct hwrm_error_recovery_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
7090 struct bnxt_fw_health *fw_health = bp->fw_health;
7091 struct hwrm_error_recovery_qcfg_input req = {0};
7092 int rc, i;
7093
7094 if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
7095 return 0;
7096
7097 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_ERROR_RECOVERY_QCFG, -1, -1);
7098 mutex_lock(&bp->hwrm_cmd_lock);
7099 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7100 if (rc)
7101 goto err_recovery_out;
7102 fw_health->flags = le32_to_cpu(resp->flags);
7103 if ((fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) &&
7104 !(bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL)) {
7105 rc = -EINVAL;
7106 goto err_recovery_out;
7107 }
7108 fw_health->polling_dsecs = le32_to_cpu(resp->driver_polling_freq);
7109 fw_health->master_func_wait_dsecs =
7110 le32_to_cpu(resp->master_func_wait_period);
7111 fw_health->normal_func_wait_dsecs =
7112 le32_to_cpu(resp->normal_func_wait_period);
7113 fw_health->post_reset_wait_dsecs =
7114 le32_to_cpu(resp->master_func_wait_period_after_reset);
7115 fw_health->post_reset_max_wait_dsecs =
7116 le32_to_cpu(resp->max_bailout_time_after_reset);
7117 fw_health->regs[BNXT_FW_HEALTH_REG] =
7118 le32_to_cpu(resp->fw_health_status_reg);
7119 fw_health->regs[BNXT_FW_HEARTBEAT_REG] =
7120 le32_to_cpu(resp->fw_heartbeat_reg);
7121 fw_health->regs[BNXT_FW_RESET_CNT_REG] =
7122 le32_to_cpu(resp->fw_reset_cnt_reg);
7123 fw_health->regs[BNXT_FW_RESET_INPROG_REG] =
7124 le32_to_cpu(resp->reset_inprogress_reg);
7125 fw_health->fw_reset_inprog_reg_mask =
7126 le32_to_cpu(resp->reset_inprogress_reg_mask);
7127 fw_health->fw_reset_seq_cnt = resp->reg_array_cnt;
7128 if (fw_health->fw_reset_seq_cnt >= 16) {
7129 rc = -EINVAL;
7130 goto err_recovery_out;
7131 }
7132 for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) {
7133 fw_health->fw_reset_seq_regs[i] =
7134 le32_to_cpu(resp->reset_reg[i]);
7135 fw_health->fw_reset_seq_vals[i] =
7136 le32_to_cpu(resp->reset_reg_val[i]);
7137 fw_health->fw_reset_seq_delay_msec[i] =
7138 resp->delay_after_reset[i];
7139 }
7140 err_recovery_out:
7141 mutex_unlock(&bp->hwrm_cmd_lock);
7142 if (!rc)
7143 rc = bnxt_map_fw_health_regs(bp);
7144 if (rc)
7145 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
7146 return rc;
7147 }
7148
7149 static int bnxt_hwrm_func_reset(struct bnxt *bp)
7150 {
7151 struct hwrm_func_reset_input req = {0};
7152
7153 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_RESET, -1, -1);
7154 req.enables = 0;
7155
7156 return hwrm_send_message(bp, &req, sizeof(req), HWRM_RESET_TIMEOUT);
7157 }
7158
7159 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp)
7160 {
7161 int rc = 0;
7162 struct hwrm_queue_qportcfg_input req = {0};
7163 struct hwrm_queue_qportcfg_output *resp = bp->hwrm_cmd_resp_addr;
7164 u8 i, j, *qptr;
7165 bool no_rdma;
7166
7167 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_QPORTCFG, -1, -1);
7168
7169 mutex_lock(&bp->hwrm_cmd_lock);
7170 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7171 if (rc)
7172 goto qportcfg_exit;
7173
7174 if (!resp->max_configurable_queues) {
7175 rc = -EINVAL;
7176 goto qportcfg_exit;
7177 }
7178 bp->max_tc = resp->max_configurable_queues;
7179 bp->max_lltc = resp->max_configurable_lossless_queues;
7180 if (bp->max_tc > BNXT_MAX_QUEUE)
7181 bp->max_tc = BNXT_MAX_QUEUE;
7182
7183 no_rdma = !(bp->flags & BNXT_FLAG_ROCE_CAP);
7184 qptr = &resp->queue_id0;
7185 for (i = 0, j = 0; i < bp->max_tc; i++) {
7186 bp->q_info[j].queue_id = *qptr;
7187 bp->q_ids[i] = *qptr++;
7188 bp->q_info[j].queue_profile = *qptr++;
7189 bp->tc_to_qidx[j] = j;
7190 if (!BNXT_CNPQ(bp->q_info[j].queue_profile) ||
7191 (no_rdma && BNXT_PF(bp)))
7192 j++;
7193 }
7194 bp->max_q = bp->max_tc;
7195 bp->max_tc = max_t(u8, j, 1);
7196
7197 if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG)
7198 bp->max_tc = 1;
7199
7200 if (bp->max_lltc > bp->max_tc)
7201 bp->max_lltc = bp->max_tc;
7202
7203 qportcfg_exit:
7204 mutex_unlock(&bp->hwrm_cmd_lock);
7205 return rc;
7206 }
7207
7208 static int __bnxt_hwrm_ver_get(struct bnxt *bp, bool silent)
7209 {
7210 struct hwrm_ver_get_input req = {0};
7211 int rc;
7212
7213 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VER_GET, -1, -1);
7214 req.hwrm_intf_maj = HWRM_VERSION_MAJOR;
7215 req.hwrm_intf_min = HWRM_VERSION_MINOR;
7216 req.hwrm_intf_upd = HWRM_VERSION_UPDATE;
7217
7218 rc = bnxt_hwrm_do_send_msg(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT,
7219 silent);
7220 return rc;
7221 }
7222
7223 static int bnxt_hwrm_ver_get(struct bnxt *bp)
7224 {
7225 struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr;
7226 u32 dev_caps_cfg, hwrm_ver;
7227 int rc;
7228
7229 bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN;
7230 mutex_lock(&bp->hwrm_cmd_lock);
7231 rc = __bnxt_hwrm_ver_get(bp, false);
7232 if (rc)
7233 goto hwrm_ver_get_exit;
7234
7235 memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output));
7236
7237 bp->hwrm_spec_code = resp->hwrm_intf_maj_8b << 16 |
7238 resp->hwrm_intf_min_8b << 8 |
7239 resp->hwrm_intf_upd_8b;
7240 if (resp->hwrm_intf_maj_8b < 1) {
7241 netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n",
7242 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
7243 resp->hwrm_intf_upd_8b);
7244 netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n");
7245 }
7246
7247 hwrm_ver = HWRM_VERSION_MAJOR << 16 | HWRM_VERSION_MINOR << 8 |
7248 HWRM_VERSION_UPDATE;
7249
7250 if (bp->hwrm_spec_code > hwrm_ver)
7251 snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d",
7252 HWRM_VERSION_MAJOR, HWRM_VERSION_MINOR,
7253 HWRM_VERSION_UPDATE);
7254 else
7255 snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d",
7256 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
7257 resp->hwrm_intf_upd_8b);
7258
7259 snprintf(bp->fw_ver_str, BC_HWRM_STR_LEN, "%d.%d.%d.%d",
7260 resp->hwrm_fw_maj_8b, resp->hwrm_fw_min_8b,
7261 resp->hwrm_fw_bld_8b, resp->hwrm_fw_rsvd_8b);
7262
7263 if (strlen(resp->active_pkg_name)) {
7264 int fw_ver_len = strlen(bp->fw_ver_str);
7265
7266 snprintf(bp->fw_ver_str + fw_ver_len,
7267 FW_VER_STR_LEN - fw_ver_len - 1, "/pkg %s",
7268 resp->active_pkg_name);
7269 bp->fw_cap |= BNXT_FW_CAP_PKG_VER;
7270 }
7271
7272 bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout);
7273 if (!bp->hwrm_cmd_timeout)
7274 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT;
7275
7276 if (resp->hwrm_intf_maj_8b >= 1) {
7277 bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len);
7278 bp->hwrm_max_ext_req_len = le16_to_cpu(resp->max_ext_req_len);
7279 }
7280 if (bp->hwrm_max_ext_req_len < HWRM_MAX_REQ_LEN)
7281 bp->hwrm_max_ext_req_len = HWRM_MAX_REQ_LEN;
7282
7283 bp->chip_num = le16_to_cpu(resp->chip_num);
7284 bp->chip_rev = resp->chip_rev;
7285 if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev &&
7286 !resp->chip_metal)
7287 bp->flags |= BNXT_FLAG_CHIP_NITRO_A0;
7288
7289 dev_caps_cfg = le32_to_cpu(resp->dev_caps_cfg);
7290 if ((dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_SUPPORTED) &&
7291 (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_REQUIRED))
7292 bp->fw_cap |= BNXT_FW_CAP_SHORT_CMD;
7293
7294 if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_KONG_MB_CHNL_SUPPORTED)
7295 bp->fw_cap |= BNXT_FW_CAP_KONG_MB_CHNL;
7296
7297 if (dev_caps_cfg &
7298 VER_GET_RESP_DEV_CAPS_CFG_FLOW_HANDLE_64BIT_SUPPORTED)
7299 bp->fw_cap |= BNXT_FW_CAP_OVS_64BIT_HANDLE;
7300
7301 if (dev_caps_cfg &
7302 VER_GET_RESP_DEV_CAPS_CFG_TRUSTED_VF_SUPPORTED)
7303 bp->fw_cap |= BNXT_FW_CAP_TRUSTED_VF;
7304
7305 if (dev_caps_cfg &
7306 VER_GET_RESP_DEV_CAPS_CFG_CFA_ADV_FLOW_MGNT_SUPPORTED)
7307 bp->fw_cap |= BNXT_FW_CAP_CFA_ADV_FLOW;
7308
7309 hwrm_ver_get_exit:
7310 mutex_unlock(&bp->hwrm_cmd_lock);
7311 return rc;
7312 }
7313
7314 int bnxt_hwrm_fw_set_time(struct bnxt *bp)
7315 {
7316 struct hwrm_fw_set_time_input req = {0};
7317 struct tm tm;
7318 time64_t now = ktime_get_real_seconds();
7319
7320 if ((BNXT_VF(bp) && bp->hwrm_spec_code < 0x10901) ||
7321 bp->hwrm_spec_code < 0x10400)
7322 return -EOPNOTSUPP;
7323
7324 time64_to_tm(now, 0, &tm);
7325 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_SET_TIME, -1, -1);
7326 req.year = cpu_to_le16(1900 + tm.tm_year);
7327 req.month = 1 + tm.tm_mon;
7328 req.day = tm.tm_mday;
7329 req.hour = tm.tm_hour;
7330 req.minute = tm.tm_min;
7331 req.second = tm.tm_sec;
7332 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7333 }
7334
7335 static int bnxt_hwrm_port_qstats(struct bnxt *bp)
7336 {
7337 struct bnxt_pf_info *pf = &bp->pf;
7338 struct hwrm_port_qstats_input req = {0};
7339
7340 if (!(bp->flags & BNXT_FLAG_PORT_STATS))
7341 return 0;
7342
7343 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_QSTATS, -1, -1);
7344 req.port_id = cpu_to_le16(pf->port_id);
7345 req.tx_stat_host_addr = cpu_to_le64(bp->hw_tx_port_stats_map);
7346 req.rx_stat_host_addr = cpu_to_le64(bp->hw_rx_port_stats_map);
7347 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7348 }
7349
7350 static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp)
7351 {
7352 struct hwrm_port_qstats_ext_output *resp = bp->hwrm_cmd_resp_addr;
7353 struct hwrm_queue_pri2cos_qcfg_input req2 = {0};
7354 struct hwrm_port_qstats_ext_input req = {0};
7355 struct bnxt_pf_info *pf = &bp->pf;
7356 u32 tx_stat_size;
7357 int rc;
7358
7359 if (!(bp->flags & BNXT_FLAG_PORT_STATS_EXT))
7360 return 0;
7361
7362 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_QSTATS_EXT, -1, -1);
7363 req.port_id = cpu_to_le16(pf->port_id);
7364 req.rx_stat_size = cpu_to_le16(sizeof(struct rx_port_stats_ext));
7365 req.rx_stat_host_addr = cpu_to_le64(bp->hw_rx_port_stats_ext_map);
7366 tx_stat_size = bp->hw_tx_port_stats_ext ?
7367 sizeof(*bp->hw_tx_port_stats_ext) : 0;
7368 req.tx_stat_size = cpu_to_le16(tx_stat_size);
7369 req.tx_stat_host_addr = cpu_to_le64(bp->hw_tx_port_stats_ext_map);
7370 mutex_lock(&bp->hwrm_cmd_lock);
7371 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7372 if (!rc) {
7373 bp->fw_rx_stats_ext_size = le16_to_cpu(resp->rx_stat_size) / 8;
7374 bp->fw_tx_stats_ext_size = tx_stat_size ?
7375 le16_to_cpu(resp->tx_stat_size) / 8 : 0;
7376 } else {
7377 bp->fw_rx_stats_ext_size = 0;
7378 bp->fw_tx_stats_ext_size = 0;
7379 }
7380 if (bp->fw_tx_stats_ext_size <=
7381 offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) {
7382 mutex_unlock(&bp->hwrm_cmd_lock);
7383 bp->pri2cos_valid = 0;
7384 return rc;
7385 }
7386
7387 bnxt_hwrm_cmd_hdr_init(bp, &req2, HWRM_QUEUE_PRI2COS_QCFG, -1, -1);
7388 req2.flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN);
7389
7390 rc = _hwrm_send_message(bp, &req2, sizeof(req2), HWRM_CMD_TIMEOUT);
7391 if (!rc) {
7392 struct hwrm_queue_pri2cos_qcfg_output *resp2;
7393 u8 *pri2cos;
7394 int i, j;
7395
7396 resp2 = bp->hwrm_cmd_resp_addr;
7397 pri2cos = &resp2->pri0_cos_queue_id;
7398 for (i = 0; i < 8; i++) {
7399 u8 queue_id = pri2cos[i];
7400 u8 queue_idx;
7401
7402 /* Per port queue IDs start from 0, 10, 20, etc */
7403 queue_idx = queue_id % 10;
7404 if (queue_idx > BNXT_MAX_QUEUE) {
7405 bp->pri2cos_valid = false;
7406 goto qstats_done;
7407 }
7408 for (j = 0; j < bp->max_q; j++) {
7409 if (bp->q_ids[j] == queue_id)
7410 bp->pri2cos_idx[i] = queue_idx;
7411 }
7412 }
7413 bp->pri2cos_valid = 1;
7414 }
7415 qstats_done:
7416 mutex_unlock(&bp->hwrm_cmd_lock);
7417 return rc;
7418 }
7419
7420 static int bnxt_hwrm_pcie_qstats(struct bnxt *bp)
7421 {
7422 struct hwrm_pcie_qstats_input req = {0};
7423
7424 if (!(bp->flags & BNXT_FLAG_PCIE_STATS))
7425 return 0;
7426
7427 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PCIE_QSTATS, -1, -1);
7428 req.pcie_stat_size = cpu_to_le16(sizeof(struct pcie_ctx_hw_stats));
7429 req.pcie_stat_host_addr = cpu_to_le64(bp->hw_pcie_stats_map);
7430 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7431 }
7432
7433 static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp)
7434 {
7435 if (bp->vxlan_port_cnt) {
7436 bnxt_hwrm_tunnel_dst_port_free(
7437 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
7438 }
7439 bp->vxlan_port_cnt = 0;
7440 if (bp->nge_port_cnt) {
7441 bnxt_hwrm_tunnel_dst_port_free(
7442 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
7443 }
7444 bp->nge_port_cnt = 0;
7445 }
7446
7447 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
7448 {
7449 int rc, i;
7450 u32 tpa_flags = 0;
7451
7452 if (set_tpa)
7453 tpa_flags = bp->flags & BNXT_FLAG_TPA;
7454 else if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
7455 return 0;
7456 for (i = 0; i < bp->nr_vnics; i++) {
7457 rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags);
7458 if (rc) {
7459 netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n",
7460 i, rc);
7461 return rc;
7462 }
7463 }
7464 return 0;
7465 }
7466
7467 static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp)
7468 {
7469 int i;
7470
7471 for (i = 0; i < bp->nr_vnics; i++)
7472 bnxt_hwrm_vnic_set_rss(bp, i, false);
7473 }
7474
7475 static void bnxt_clear_vnic(struct bnxt *bp)
7476 {
7477 if (!bp->vnic_info)
7478 return;
7479
7480 bnxt_hwrm_clear_vnic_filter(bp);
7481 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) {
7482 /* clear all RSS setting before free vnic ctx */
7483 bnxt_hwrm_clear_vnic_rss(bp);
7484 bnxt_hwrm_vnic_ctx_free(bp);
7485 }
7486 /* before free the vnic, undo the vnic tpa settings */
7487 if (bp->flags & BNXT_FLAG_TPA)
7488 bnxt_set_tpa(bp, false);
7489 bnxt_hwrm_vnic_free(bp);
7490 if (bp->flags & BNXT_FLAG_CHIP_P5)
7491 bnxt_hwrm_vnic_ctx_free(bp);
7492 }
7493
7494 static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path,
7495 bool irq_re_init)
7496 {
7497 bnxt_clear_vnic(bp);
7498 bnxt_hwrm_ring_free(bp, close_path);
7499 bnxt_hwrm_ring_grp_free(bp);
7500 if (irq_re_init) {
7501 bnxt_hwrm_stat_ctx_free(bp);
7502 bnxt_hwrm_free_tunnel_ports(bp);
7503 }
7504 }
7505
7506 static int bnxt_hwrm_set_br_mode(struct bnxt *bp, u16 br_mode)
7507 {
7508 struct hwrm_func_cfg_input req = {0};
7509
7510 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
7511 req.fid = cpu_to_le16(0xffff);
7512 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_EVB_MODE);
7513 if (br_mode == BRIDGE_MODE_VEB)
7514 req.evb_mode = FUNC_CFG_REQ_EVB_MODE_VEB;
7515 else if (br_mode == BRIDGE_MODE_VEPA)
7516 req.evb_mode = FUNC_CFG_REQ_EVB_MODE_VEPA;
7517 else
7518 return -EINVAL;
7519 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7520 }
7521
7522 static int bnxt_hwrm_set_cache_line_size(struct bnxt *bp, int size)
7523 {
7524 struct hwrm_func_cfg_input req = {0};
7525
7526 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10803)
7527 return 0;
7528
7529 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
7530 req.fid = cpu_to_le16(0xffff);
7531 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_CACHE_LINESIZE);
7532 req.options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_64;
7533 if (size == 128)
7534 req.options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_128;
7535
7536 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
7537 }
7538
7539 static int __bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
7540 {
7541 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
7542 int rc;
7543
7544 if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG)
7545 goto skip_rss_ctx;
7546
7547 /* allocate context for vnic */
7548 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 0);
7549 if (rc) {
7550 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
7551 vnic_id, rc);
7552 goto vnic_setup_err;
7553 }
7554 bp->rsscos_nr_ctxs++;
7555
7556 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
7557 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 1);
7558 if (rc) {
7559 netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n",
7560 vnic_id, rc);
7561 goto vnic_setup_err;
7562 }
7563 bp->rsscos_nr_ctxs++;
7564 }
7565
7566 skip_rss_ctx:
7567 /* configure default vnic, ring grp */
7568 rc = bnxt_hwrm_vnic_cfg(bp, vnic_id);
7569 if (rc) {
7570 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n",
7571 vnic_id, rc);
7572 goto vnic_setup_err;
7573 }
7574
7575 /* Enable RSS hashing on vnic */
7576 rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true);
7577 if (rc) {
7578 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n",
7579 vnic_id, rc);
7580 goto vnic_setup_err;
7581 }
7582
7583 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
7584 rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id);
7585 if (rc) {
7586 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n",
7587 vnic_id, rc);
7588 }
7589 }
7590
7591 vnic_setup_err:
7592 return rc;
7593 }
7594
7595 static int __bnxt_setup_vnic_p5(struct bnxt *bp, u16 vnic_id)
7596 {
7597 int rc, i, nr_ctxs;
7598
7599 nr_ctxs = DIV_ROUND_UP(bp->rx_nr_rings, 64);
7600 for (i = 0; i < nr_ctxs; i++) {
7601 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, i);
7602 if (rc) {
7603 netdev_err(bp->dev, "hwrm vnic %d ctx %d alloc failure rc: %x\n",
7604 vnic_id, i, rc);
7605 break;
7606 }
7607 bp->rsscos_nr_ctxs++;
7608 }
7609 if (i < nr_ctxs)
7610 return -ENOMEM;
7611
7612 rc = bnxt_hwrm_vnic_set_rss_p5(bp, vnic_id, true);
7613 if (rc) {
7614 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %d\n",
7615 vnic_id, rc);
7616 return rc;
7617 }
7618 rc = bnxt_hwrm_vnic_cfg(bp, vnic_id);
7619 if (rc) {
7620 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n",
7621 vnic_id, rc);
7622 return rc;
7623 }
7624 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
7625 rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id);
7626 if (rc) {
7627 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n",
7628 vnic_id, rc);
7629 }
7630 }
7631 return rc;
7632 }
7633
7634 static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
7635 {
7636 if (bp->flags & BNXT_FLAG_CHIP_P5)
7637 return __bnxt_setup_vnic_p5(bp, vnic_id);
7638 else
7639 return __bnxt_setup_vnic(bp, vnic_id);
7640 }
7641
7642 static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
7643 {
7644 #ifdef CONFIG_RFS_ACCEL
7645 int i, rc = 0;
7646
7647 if (bp->flags & BNXT_FLAG_CHIP_P5)
7648 return 0;
7649
7650 for (i = 0; i < bp->rx_nr_rings; i++) {
7651 struct bnxt_vnic_info *vnic;
7652 u16 vnic_id = i + 1;
7653 u16 ring_id = i;
7654
7655 if (vnic_id >= bp->nr_vnics)
7656 break;
7657
7658 vnic = &bp->vnic_info[vnic_id];
7659 vnic->flags |= BNXT_VNIC_RFS_FLAG;
7660 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
7661 vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG;
7662 rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, 1);
7663 if (rc) {
7664 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
7665 vnic_id, rc);
7666 break;
7667 }
7668 rc = bnxt_setup_vnic(bp, vnic_id);
7669 if (rc)
7670 break;
7671 }
7672 return rc;
7673 #else
7674 return 0;
7675 #endif
7676 }
7677
7678 /* Allow PF and VF with default VLAN to be in promiscuous mode */
7679 static bool bnxt_promisc_ok(struct bnxt *bp)
7680 {
7681 #ifdef CONFIG_BNXT_SRIOV
7682 if (BNXT_VF(bp) && !bp->vf.vlan)
7683 return false;
7684 #endif
7685 return true;
7686 }
7687
7688 static int bnxt_setup_nitroa0_vnic(struct bnxt *bp)
7689 {
7690 unsigned int rc = 0;
7691
7692 rc = bnxt_hwrm_vnic_alloc(bp, 1, bp->rx_nr_rings - 1, 1);
7693 if (rc) {
7694 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n",
7695 rc);
7696 return rc;
7697 }
7698
7699 rc = bnxt_hwrm_vnic_cfg(bp, 1);
7700 if (rc) {
7701 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n",
7702 rc);
7703 return rc;
7704 }
7705 return rc;
7706 }
7707
7708 static int bnxt_cfg_rx_mode(struct bnxt *);
7709 static bool bnxt_mc_list_updated(struct bnxt *, u32 *);
7710
7711 static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
7712 {
7713 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
7714 int rc = 0;
7715 unsigned int rx_nr_rings = bp->rx_nr_rings;
7716
7717 if (irq_re_init) {
7718 rc = bnxt_hwrm_stat_ctx_alloc(bp);
7719 if (rc) {
7720 netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n",
7721 rc);
7722 goto err_out;
7723 }
7724 }
7725
7726 rc = bnxt_hwrm_ring_alloc(bp);
7727 if (rc) {
7728 netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc);
7729 goto err_out;
7730 }
7731
7732 rc = bnxt_hwrm_ring_grp_alloc(bp);
7733 if (rc) {
7734 netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc);
7735 goto err_out;
7736 }
7737
7738 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
7739 rx_nr_rings--;
7740
7741 /* default vnic 0 */
7742 rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, rx_nr_rings);
7743 if (rc) {
7744 netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc);
7745 goto err_out;
7746 }
7747
7748 rc = bnxt_setup_vnic(bp, 0);
7749 if (rc)
7750 goto err_out;
7751
7752 if (bp->flags & BNXT_FLAG_RFS) {
7753 rc = bnxt_alloc_rfs_vnics(bp);
7754 if (rc)
7755 goto err_out;
7756 }
7757
7758 if (bp->flags & BNXT_FLAG_TPA) {
7759 rc = bnxt_set_tpa(bp, true);
7760 if (rc)
7761 goto err_out;
7762 }
7763
7764 if (BNXT_VF(bp))
7765 bnxt_update_vf_mac(bp);
7766
7767 /* Filter for default vnic 0 */
7768 rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr);
7769 if (rc) {
7770 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
7771 goto err_out;
7772 }
7773 vnic->uc_filter_count = 1;
7774
7775 vnic->rx_mask = 0;
7776 if (bp->dev->flags & IFF_BROADCAST)
7777 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
7778
7779 if ((bp->dev->flags & IFF_PROMISC) && bnxt_promisc_ok(bp))
7780 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
7781
7782 if (bp->dev->flags & IFF_ALLMULTI) {
7783 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
7784 vnic->mc_list_count = 0;
7785 } else {
7786 u32 mask = 0;
7787
7788 bnxt_mc_list_updated(bp, &mask);
7789 vnic->rx_mask |= mask;
7790 }
7791
7792 rc = bnxt_cfg_rx_mode(bp);
7793 if (rc)
7794 goto err_out;
7795
7796 rc = bnxt_hwrm_set_coal(bp);
7797 if (rc)
7798 netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n",
7799 rc);
7800
7801 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
7802 rc = bnxt_setup_nitroa0_vnic(bp);
7803 if (rc)
7804 netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n",
7805 rc);
7806 }
7807
7808 if (BNXT_VF(bp)) {
7809 bnxt_hwrm_func_qcfg(bp);
7810 netdev_update_features(bp->dev);
7811 }
7812
7813 return 0;
7814
7815 err_out:
7816 bnxt_hwrm_resource_free(bp, 0, true);
7817
7818 return rc;
7819 }
7820
7821 static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init)
7822 {
7823 bnxt_hwrm_resource_free(bp, 1, irq_re_init);
7824 return 0;
7825 }
7826
7827 static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init)
7828 {
7829 bnxt_init_cp_rings(bp);
7830 bnxt_init_rx_rings(bp);
7831 bnxt_init_tx_rings(bp);
7832 bnxt_init_ring_grps(bp, irq_re_init);
7833 bnxt_init_vnics(bp);
7834
7835 return bnxt_init_chip(bp, irq_re_init);
7836 }
7837
7838 static int bnxt_set_real_num_queues(struct bnxt *bp)
7839 {
7840 int rc;
7841 struct net_device *dev = bp->dev;
7842
7843 rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings -
7844 bp->tx_nr_rings_xdp);
7845 if (rc)
7846 return rc;
7847
7848 rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings);
7849 if (rc)
7850 return rc;
7851
7852 #ifdef CONFIG_RFS_ACCEL
7853 if (bp->flags & BNXT_FLAG_RFS)
7854 dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings);
7855 #endif
7856
7857 return rc;
7858 }
7859
7860 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max,
7861 bool shared)
7862 {
7863 int _rx = *rx, _tx = *tx;
7864
7865 if (shared) {
7866 *rx = min_t(int, _rx, max);
7867 *tx = min_t(int, _tx, max);
7868 } else {
7869 if (max < 2)
7870 return -ENOMEM;
7871
7872 while (_rx + _tx > max) {
7873 if (_rx > _tx && _rx > 1)
7874 _rx--;
7875 else if (_tx > 1)
7876 _tx--;
7877 }
7878 *rx = _rx;
7879 *tx = _tx;
7880 }
7881 return 0;
7882 }
7883
7884 static void bnxt_setup_msix(struct bnxt *bp)
7885 {
7886 const int len = sizeof(bp->irq_tbl[0].name);
7887 struct net_device *dev = bp->dev;
7888 int tcs, i;
7889
7890 tcs = netdev_get_num_tc(dev);
7891 if (tcs) {
7892 int i, off, count;
7893
7894 for (i = 0; i < tcs; i++) {
7895 count = bp->tx_nr_rings_per_tc;
7896 off = i * count;
7897 netdev_set_tc_queue(dev, i, count, off);
7898 }
7899 }
7900
7901 for (i = 0; i < bp->cp_nr_rings; i++) {
7902 int map_idx = bnxt_cp_num_to_irq_num(bp, i);
7903 char *attr;
7904
7905 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
7906 attr = "TxRx";
7907 else if (i < bp->rx_nr_rings)
7908 attr = "rx";
7909 else
7910 attr = "tx";
7911
7912 snprintf(bp->irq_tbl[map_idx].name, len, "%s-%s-%d", dev->name,
7913 attr, i);
7914 bp->irq_tbl[map_idx].handler = bnxt_msix;
7915 }
7916 }
7917
7918 static void bnxt_setup_inta(struct bnxt *bp)
7919 {
7920 const int len = sizeof(bp->irq_tbl[0].name);
7921
7922 if (netdev_get_num_tc(bp->dev))
7923 netdev_reset_tc(bp->dev);
7924
7925 snprintf(bp->irq_tbl[0].name, len, "%s-%s-%d", bp->dev->name, "TxRx",
7926 0);
7927 bp->irq_tbl[0].handler = bnxt_inta;
7928 }
7929
7930 static int bnxt_setup_int_mode(struct bnxt *bp)
7931 {
7932 int rc;
7933
7934 if (bp->flags & BNXT_FLAG_USING_MSIX)
7935 bnxt_setup_msix(bp);
7936 else
7937 bnxt_setup_inta(bp);
7938
7939 rc = bnxt_set_real_num_queues(bp);
7940 return rc;
7941 }
7942
7943 #ifdef CONFIG_RFS_ACCEL
7944 static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp)
7945 {
7946 return bp->hw_resc.max_rsscos_ctxs;
7947 }
7948
7949 static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp)
7950 {
7951 return bp->hw_resc.max_vnics;
7952 }
7953 #endif
7954
7955 unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp)
7956 {
7957 return bp->hw_resc.max_stat_ctxs;
7958 }
7959
7960 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp)
7961 {
7962 return bp->hw_resc.max_cp_rings;
7963 }
7964
7965 static unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp)
7966 {
7967 unsigned int cp = bp->hw_resc.max_cp_rings;
7968
7969 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
7970 cp -= bnxt_get_ulp_msix_num(bp);
7971
7972 return cp;
7973 }
7974
7975 static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp)
7976 {
7977 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
7978
7979 if (bp->flags & BNXT_FLAG_CHIP_P5)
7980 return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_nqs);
7981
7982 return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_cp_rings);
7983 }
7984
7985 static void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs)
7986 {
7987 bp->hw_resc.max_irqs = max_irqs;
7988 }
7989
7990 unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp)
7991 {
7992 unsigned int cp;
7993
7994 cp = bnxt_get_max_func_cp_rings_for_en(bp);
7995 if (bp->flags & BNXT_FLAG_CHIP_P5)
7996 return cp - bp->rx_nr_rings - bp->tx_nr_rings;
7997 else
7998 return cp - bp->cp_nr_rings;
7999 }
8000
8001 unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp)
8002 {
8003 return bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_func_stat_ctxs(bp);
8004 }
8005
8006 int bnxt_get_avail_msix(struct bnxt *bp, int num)
8007 {
8008 int max_cp = bnxt_get_max_func_cp_rings(bp);
8009 int max_irq = bnxt_get_max_func_irqs(bp);
8010 int total_req = bp->cp_nr_rings + num;
8011 int max_idx, avail_msix;
8012
8013 max_idx = bp->total_irqs;
8014 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
8015 max_idx = min_t(int, bp->total_irqs, max_cp);
8016 avail_msix = max_idx - bp->cp_nr_rings;
8017 if (!BNXT_NEW_RM(bp) || avail_msix >= num)
8018 return avail_msix;
8019
8020 if (max_irq < total_req) {
8021 num = max_irq - bp->cp_nr_rings;
8022 if (num <= 0)
8023 return 0;
8024 }
8025 return num;
8026 }
8027
8028 static int bnxt_get_num_msix(struct bnxt *bp)
8029 {
8030 if (!BNXT_NEW_RM(bp))
8031 return bnxt_get_max_func_irqs(bp);
8032
8033 return bnxt_nq_rings_in_use(bp);
8034 }
8035
8036 static int bnxt_init_msix(struct bnxt *bp)
8037 {
8038 int i, total_vecs, max, rc = 0, min = 1, ulp_msix;
8039 struct msix_entry *msix_ent;
8040
8041 total_vecs = bnxt_get_num_msix(bp);
8042 max = bnxt_get_max_func_irqs(bp);
8043 if (total_vecs > max)
8044 total_vecs = max;
8045
8046 if (!total_vecs)
8047 return 0;
8048
8049 msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL);
8050 if (!msix_ent)
8051 return -ENOMEM;
8052
8053 for (i = 0; i < total_vecs; i++) {
8054 msix_ent[i].entry = i;
8055 msix_ent[i].vector = 0;
8056 }
8057
8058 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
8059 min = 2;
8060
8061 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs);
8062 ulp_msix = bnxt_get_ulp_msix_num(bp);
8063 if (total_vecs < 0 || total_vecs < ulp_msix) {
8064 rc = -ENODEV;
8065 goto msix_setup_exit;
8066 }
8067
8068 bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL);
8069 if (bp->irq_tbl) {
8070 for (i = 0; i < total_vecs; i++)
8071 bp->irq_tbl[i].vector = msix_ent[i].vector;
8072
8073 bp->total_irqs = total_vecs;
8074 /* Trim rings based upon num of vectors allocated */
8075 rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings,
8076 total_vecs - ulp_msix, min == 1);
8077 if (rc)
8078 goto msix_setup_exit;
8079
8080 bp->cp_nr_rings = (min == 1) ?
8081 max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
8082 bp->tx_nr_rings + bp->rx_nr_rings;
8083
8084 } else {
8085 rc = -ENOMEM;
8086 goto msix_setup_exit;
8087 }
8088 bp->flags |= BNXT_FLAG_USING_MSIX;
8089 kfree(msix_ent);
8090 return 0;
8091
8092 msix_setup_exit:
8093 netdev_err(bp->dev, "bnxt_init_msix err: %x\n", rc);
8094 kfree(bp->irq_tbl);
8095 bp->irq_tbl = NULL;
8096 pci_disable_msix(bp->pdev);
8097 kfree(msix_ent);
8098 return rc;
8099 }
8100
8101 static int bnxt_init_inta(struct bnxt *bp)
8102 {
8103 bp->irq_tbl = kcalloc(1, sizeof(struct bnxt_irq), GFP_KERNEL);
8104 if (!bp->irq_tbl)
8105 return -ENOMEM;
8106
8107 bp->total_irqs = 1;
8108 bp->rx_nr_rings = 1;
8109 bp->tx_nr_rings = 1;
8110 bp->cp_nr_rings = 1;
8111 bp->flags |= BNXT_FLAG_SHARED_RINGS;
8112 bp->irq_tbl[0].vector = bp->pdev->irq;
8113 return 0;
8114 }
8115
8116 static int bnxt_init_int_mode(struct bnxt *bp)
8117 {
8118 int rc = 0;
8119
8120 if (bp->flags & BNXT_FLAG_MSIX_CAP)
8121 rc = bnxt_init_msix(bp);
8122
8123 if (!(bp->flags & BNXT_FLAG_USING_MSIX) && BNXT_PF(bp)) {
8124 /* fallback to INTA */
8125 rc = bnxt_init_inta(bp);
8126 }
8127 return rc;
8128 }
8129
8130 static void bnxt_clear_int_mode(struct bnxt *bp)
8131 {
8132 if (bp->flags & BNXT_FLAG_USING_MSIX)
8133 pci_disable_msix(bp->pdev);
8134
8135 kfree(bp->irq_tbl);
8136 bp->irq_tbl = NULL;
8137 bp->flags &= ~BNXT_FLAG_USING_MSIX;
8138 }
8139
8140 int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init)
8141 {
8142 int tcs = netdev_get_num_tc(bp->dev);
8143 bool irq_cleared = false;
8144 int rc;
8145
8146 if (!bnxt_need_reserve_rings(bp))
8147 return 0;
8148
8149 if (irq_re_init && BNXT_NEW_RM(bp) &&
8150 bnxt_get_num_msix(bp) != bp->total_irqs) {
8151 bnxt_ulp_irq_stop(bp);
8152 bnxt_clear_int_mode(bp);
8153 irq_cleared = true;
8154 }
8155 rc = __bnxt_reserve_rings(bp);
8156 if (irq_cleared) {
8157 if (!rc)
8158 rc = bnxt_init_int_mode(bp);
8159 bnxt_ulp_irq_restart(bp, rc);
8160 }
8161 if (rc) {
8162 netdev_err(bp->dev, "ring reservation/IRQ init failure rc: %d\n", rc);
8163 return rc;
8164 }
8165 if (tcs && (bp->tx_nr_rings_per_tc * tcs != bp->tx_nr_rings)) {
8166 netdev_err(bp->dev, "tx ring reservation failure\n");
8167 netdev_reset_tc(bp->dev);
8168 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
8169 return -ENOMEM;
8170 }
8171 return 0;
8172 }
8173
8174 static void bnxt_free_irq(struct bnxt *bp)
8175 {
8176 struct bnxt_irq *irq;
8177 int i;
8178
8179 #ifdef CONFIG_RFS_ACCEL
8180 free_irq_cpu_rmap(bp->dev->rx_cpu_rmap);
8181 bp->dev->rx_cpu_rmap = NULL;
8182 #endif
8183 if (!bp->irq_tbl || !bp->bnapi)
8184 return;
8185
8186 for (i = 0; i < bp->cp_nr_rings; i++) {
8187 int map_idx = bnxt_cp_num_to_irq_num(bp, i);
8188
8189 irq = &bp->irq_tbl[map_idx];
8190 if (irq->requested) {
8191 if (irq->have_cpumask) {
8192 irq_set_affinity_hint(irq->vector, NULL);
8193 free_cpumask_var(irq->cpu_mask);
8194 irq->have_cpumask = 0;
8195 }
8196 free_irq(irq->vector, bp->bnapi[i]);
8197 }
8198
8199 irq->requested = 0;
8200 }
8201 }
8202
8203 static int bnxt_request_irq(struct bnxt *bp)
8204 {
8205 int i, j, rc = 0;
8206 unsigned long flags = 0;
8207 #ifdef CONFIG_RFS_ACCEL
8208 struct cpu_rmap *rmap;
8209 #endif
8210
8211 rc = bnxt_setup_int_mode(bp);
8212 if (rc) {
8213 netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n",
8214 rc);
8215 return rc;
8216 }
8217 #ifdef CONFIG_RFS_ACCEL
8218 rmap = bp->dev->rx_cpu_rmap;
8219 #endif
8220 if (!(bp->flags & BNXT_FLAG_USING_MSIX))
8221 flags = IRQF_SHARED;
8222
8223 for (i = 0, j = 0; i < bp->cp_nr_rings; i++) {
8224 int map_idx = bnxt_cp_num_to_irq_num(bp, i);
8225 struct bnxt_irq *irq = &bp->irq_tbl[map_idx];
8226
8227 #ifdef CONFIG_RFS_ACCEL
8228 if (rmap && bp->bnapi[i]->rx_ring) {
8229 rc = irq_cpu_rmap_add(rmap, irq->vector);
8230 if (rc)
8231 netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n",
8232 j);
8233 j++;
8234 }
8235 #endif
8236 rc = request_irq(irq->vector, irq->handler, flags, irq->name,
8237 bp->bnapi[i]);
8238 if (rc)
8239 break;
8240
8241 irq->requested = 1;
8242
8243 if (zalloc_cpumask_var(&irq->cpu_mask, GFP_KERNEL)) {
8244 int numa_node = dev_to_node(&bp->pdev->dev);
8245
8246 irq->have_cpumask = 1;
8247 cpumask_set_cpu(cpumask_local_spread(i, numa_node),
8248 irq->cpu_mask);
8249 rc = irq_set_affinity_hint(irq->vector, irq->cpu_mask);
8250 if (rc) {
8251 netdev_warn(bp->dev,
8252 "Set affinity failed, IRQ = %d\n",
8253 irq->vector);
8254 break;
8255 }
8256 }
8257 }
8258 return rc;
8259 }
8260
8261 static void bnxt_del_napi(struct bnxt *bp)
8262 {
8263 int i;
8264
8265 if (!bp->bnapi)
8266 return;
8267
8268 for (i = 0; i < bp->cp_nr_rings; i++) {
8269 struct bnxt_napi *bnapi = bp->bnapi[i];
8270
8271 napi_hash_del(&bnapi->napi);
8272 netif_napi_del(&bnapi->napi);
8273 }
8274 /* We called napi_hash_del() before netif_napi_del(), we need
8275 * to respect an RCU grace period before freeing napi structures.
8276 */
8277 synchronize_net();
8278 }
8279
8280 static void bnxt_init_napi(struct bnxt *bp)
8281 {
8282 int i;
8283 unsigned int cp_nr_rings = bp->cp_nr_rings;
8284 struct bnxt_napi *bnapi;
8285
8286 if (bp->flags & BNXT_FLAG_USING_MSIX) {
8287 int (*poll_fn)(struct napi_struct *, int) = bnxt_poll;
8288
8289 if (bp->flags & BNXT_FLAG_CHIP_P5)
8290 poll_fn = bnxt_poll_p5;
8291 else if (BNXT_CHIP_TYPE_NITRO_A0(bp))
8292 cp_nr_rings--;
8293 for (i = 0; i < cp_nr_rings; i++) {
8294 bnapi = bp->bnapi[i];
8295 netif_napi_add(bp->dev, &bnapi->napi, poll_fn, 64);
8296 }
8297 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
8298 bnapi = bp->bnapi[cp_nr_rings];
8299 netif_napi_add(bp->dev, &bnapi->napi,
8300 bnxt_poll_nitroa0, 64);
8301 }
8302 } else {
8303 bnapi = bp->bnapi[0];
8304 netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64);
8305 }
8306 }
8307
8308 static void bnxt_disable_napi(struct bnxt *bp)
8309 {
8310 int i;
8311
8312 if (!bp->bnapi)
8313 return;
8314
8315 for (i = 0; i < bp->cp_nr_rings; i++) {
8316 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
8317
8318 if (bp->bnapi[i]->rx_ring)
8319 cancel_work_sync(&cpr->dim.work);
8320
8321 napi_disable(&bp->bnapi[i]->napi);
8322 }
8323 }
8324
8325 static void bnxt_enable_napi(struct bnxt *bp)
8326 {
8327 int i;
8328
8329 for (i = 0; i < bp->cp_nr_rings; i++) {
8330 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
8331 bp->bnapi[i]->in_reset = false;
8332
8333 if (bp->bnapi[i]->rx_ring) {
8334 INIT_WORK(&cpr->dim.work, bnxt_dim_work);
8335 cpr->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
8336 }
8337 napi_enable(&bp->bnapi[i]->napi);
8338 }
8339 }
8340
8341 void bnxt_tx_disable(struct bnxt *bp)
8342 {
8343 int i;
8344 struct bnxt_tx_ring_info *txr;
8345
8346 if (bp->tx_ring) {
8347 for (i = 0; i < bp->tx_nr_rings; i++) {
8348 txr = &bp->tx_ring[i];
8349 txr->dev_state = BNXT_DEV_STATE_CLOSING;
8350 }
8351 }
8352 /* Stop all TX queues */
8353 netif_tx_disable(bp->dev);
8354 netif_carrier_off(bp->dev);
8355 }
8356
8357 void bnxt_tx_enable(struct bnxt *bp)
8358 {
8359 int i;
8360 struct bnxt_tx_ring_info *txr;
8361
8362 for (i = 0; i < bp->tx_nr_rings; i++) {
8363 txr = &bp->tx_ring[i];
8364 txr->dev_state = 0;
8365 }
8366 netif_tx_wake_all_queues(bp->dev);
8367 if (bp->link_info.link_up)
8368 netif_carrier_on(bp->dev);
8369 }
8370
8371 static void bnxt_report_link(struct bnxt *bp)
8372 {
8373 if (bp->link_info.link_up) {
8374 const char *duplex;
8375 const char *flow_ctrl;
8376 u32 speed;
8377 u16 fec;
8378
8379 netif_carrier_on(bp->dev);
8380 if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
8381 duplex = "full";
8382 else
8383 duplex = "half";
8384 if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH)
8385 flow_ctrl = "ON - receive & transmit";
8386 else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX)
8387 flow_ctrl = "ON - transmit";
8388 else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX)
8389 flow_ctrl = "ON - receive";
8390 else
8391 flow_ctrl = "none";
8392 speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
8393 netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s duplex, Flow control: %s\n",
8394 speed, duplex, flow_ctrl);
8395 if (bp->flags & BNXT_FLAG_EEE_CAP)
8396 netdev_info(bp->dev, "EEE is %s\n",
8397 bp->eee.eee_active ? "active" :
8398 "not active");
8399 fec = bp->link_info.fec_cfg;
8400 if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED))
8401 netdev_info(bp->dev, "FEC autoneg %s encodings: %s\n",
8402 (fec & BNXT_FEC_AUTONEG) ? "on" : "off",
8403 (fec & BNXT_FEC_ENC_BASE_R) ? "BaseR" :
8404 (fec & BNXT_FEC_ENC_RS) ? "RS" : "None");
8405 } else {
8406 netif_carrier_off(bp->dev);
8407 netdev_err(bp->dev, "NIC Link is Down\n");
8408 }
8409 }
8410
8411 static int bnxt_hwrm_phy_qcaps(struct bnxt *bp)
8412 {
8413 int rc = 0;
8414 struct hwrm_port_phy_qcaps_input req = {0};
8415 struct hwrm_port_phy_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
8416 struct bnxt_link_info *link_info = &bp->link_info;
8417
8418 bp->flags &= ~BNXT_FLAG_EEE_CAP;
8419 if (bp->test_info)
8420 bp->test_info->flags &= ~(BNXT_TEST_FL_EXT_LPBK |
8421 BNXT_TEST_FL_AN_PHY_LPBK);
8422 if (bp->hwrm_spec_code < 0x10201)
8423 return 0;
8424
8425 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCAPS, -1, -1);
8426
8427 mutex_lock(&bp->hwrm_cmd_lock);
8428 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8429 if (rc)
8430 goto hwrm_phy_qcaps_exit;
8431
8432 if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_EEE_SUPPORTED) {
8433 struct ethtool_eee *eee = &bp->eee;
8434 u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode);
8435
8436 bp->flags |= BNXT_FLAG_EEE_CAP;
8437 eee->supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
8438 bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) &
8439 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK;
8440 bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) &
8441 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK;
8442 }
8443 if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_EXTERNAL_LPBK_SUPPORTED) {
8444 if (bp->test_info)
8445 bp->test_info->flags |= BNXT_TEST_FL_EXT_LPBK;
8446 }
8447 if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_AUTONEG_LPBK_SUPPORTED) {
8448 if (bp->test_info)
8449 bp->test_info->flags |= BNXT_TEST_FL_AN_PHY_LPBK;
8450 }
8451 if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_SHARED_PHY_CFG_SUPPORTED) {
8452 if (BNXT_PF(bp))
8453 bp->fw_cap |= BNXT_FW_CAP_SHARED_PORT_CFG;
8454 }
8455 if (resp->supported_speeds_auto_mode)
8456 link_info->support_auto_speeds =
8457 le16_to_cpu(resp->supported_speeds_auto_mode);
8458
8459 bp->port_count = resp->port_cnt;
8460
8461 hwrm_phy_qcaps_exit:
8462 mutex_unlock(&bp->hwrm_cmd_lock);
8463 return rc;
8464 }
8465
8466 static int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
8467 {
8468 int rc = 0;
8469 struct bnxt_link_info *link_info = &bp->link_info;
8470 struct hwrm_port_phy_qcfg_input req = {0};
8471 struct hwrm_port_phy_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
8472 u8 link_up = link_info->link_up;
8473 u16 diff;
8474
8475 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCFG, -1, -1);
8476
8477 mutex_lock(&bp->hwrm_cmd_lock);
8478 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8479 if (rc) {
8480 mutex_unlock(&bp->hwrm_cmd_lock);
8481 return rc;
8482 }
8483
8484 memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp));
8485 link_info->phy_link_status = resp->link;
8486 link_info->duplex = resp->duplex_cfg;
8487 if (bp->hwrm_spec_code >= 0x10800)
8488 link_info->duplex = resp->duplex_state;
8489 link_info->pause = resp->pause;
8490 link_info->auto_mode = resp->auto_mode;
8491 link_info->auto_pause_setting = resp->auto_pause;
8492 link_info->lp_pause = resp->link_partner_adv_pause;
8493 link_info->force_pause_setting = resp->force_pause;
8494 link_info->duplex_setting = resp->duplex_cfg;
8495 if (link_info->phy_link_status == BNXT_LINK_LINK)
8496 link_info->link_speed = le16_to_cpu(resp->link_speed);
8497 else
8498 link_info->link_speed = 0;
8499 link_info->force_link_speed = le16_to_cpu(resp->force_link_speed);
8500 link_info->support_speeds = le16_to_cpu(resp->support_speeds);
8501 link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask);
8502 link_info->lp_auto_link_speeds =
8503 le16_to_cpu(resp->link_partner_adv_speeds);
8504 link_info->preemphasis = le32_to_cpu(resp->preemphasis);
8505 link_info->phy_ver[0] = resp->phy_maj;
8506 link_info->phy_ver[1] = resp->phy_min;
8507 link_info->phy_ver[2] = resp->phy_bld;
8508 link_info->media_type = resp->media_type;
8509 link_info->phy_type = resp->phy_type;
8510 link_info->transceiver = resp->xcvr_pkg_type;
8511 link_info->phy_addr = resp->eee_config_phy_addr &
8512 PORT_PHY_QCFG_RESP_PHY_ADDR_MASK;
8513 link_info->module_status = resp->module_status;
8514
8515 if (bp->flags & BNXT_FLAG_EEE_CAP) {
8516 struct ethtool_eee *eee = &bp->eee;
8517 u16 fw_speeds;
8518
8519 eee->eee_active = 0;
8520 if (resp->eee_config_phy_addr &
8521 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) {
8522 eee->eee_active = 1;
8523 fw_speeds = le16_to_cpu(
8524 resp->link_partner_adv_eee_link_speed_mask);
8525 eee->lp_advertised =
8526 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
8527 }
8528
8529 /* Pull initial EEE config */
8530 if (!chng_link_state) {
8531 if (resp->eee_config_phy_addr &
8532 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED)
8533 eee->eee_enabled = 1;
8534
8535 fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask);
8536 eee->advertised =
8537 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
8538
8539 if (resp->eee_config_phy_addr &
8540 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) {
8541 __le32 tmr;
8542
8543 eee->tx_lpi_enabled = 1;
8544 tmr = resp->xcvr_identifier_type_tx_lpi_timer;
8545 eee->tx_lpi_timer = le32_to_cpu(tmr) &
8546 PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK;
8547 }
8548 }
8549 }
8550
8551 link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED;
8552 if (bp->hwrm_spec_code >= 0x10504)
8553 link_info->fec_cfg = le16_to_cpu(resp->fec_cfg);
8554
8555 /* TODO: need to add more logic to report VF link */
8556 if (chng_link_state) {
8557 if (link_info->phy_link_status == BNXT_LINK_LINK)
8558 link_info->link_up = 1;
8559 else
8560 link_info->link_up = 0;
8561 if (link_up != link_info->link_up)
8562 bnxt_report_link(bp);
8563 } else {
8564 /* alwasy link down if not require to update link state */
8565 link_info->link_up = 0;
8566 }
8567 mutex_unlock(&bp->hwrm_cmd_lock);
8568
8569 if (!BNXT_PHY_CFG_ABLE(bp))
8570 return 0;
8571
8572 diff = link_info->support_auto_speeds ^ link_info->advertising;
8573 if ((link_info->support_auto_speeds | diff) !=
8574 link_info->support_auto_speeds) {
8575 /* An advertised speed is no longer supported, so we need to
8576 * update the advertisement settings. Caller holds RTNL
8577 * so we can modify link settings.
8578 */
8579 link_info->advertising = link_info->support_auto_speeds;
8580 if (link_info->autoneg & BNXT_AUTONEG_SPEED)
8581 bnxt_hwrm_set_link_setting(bp, true, false);
8582 }
8583 return 0;
8584 }
8585
8586 static void bnxt_get_port_module_status(struct bnxt *bp)
8587 {
8588 struct bnxt_link_info *link_info = &bp->link_info;
8589 struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp;
8590 u8 module_status;
8591
8592 if (bnxt_update_link(bp, true))
8593 return;
8594
8595 module_status = link_info->module_status;
8596 switch (module_status) {
8597 case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX:
8598 case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN:
8599 case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG:
8600 netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n",
8601 bp->pf.port_id);
8602 if (bp->hwrm_spec_code >= 0x10201) {
8603 netdev_warn(bp->dev, "Module part number %s\n",
8604 resp->phy_vendor_partnumber);
8605 }
8606 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX)
8607 netdev_warn(bp->dev, "TX is disabled\n");
8608 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN)
8609 netdev_warn(bp->dev, "SFP+ module is shutdown\n");
8610 }
8611 }
8612
8613 static void
8614 bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req)
8615 {
8616 if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) {
8617 if (bp->hwrm_spec_code >= 0x10201)
8618 req->auto_pause =
8619 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE;
8620 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
8621 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX;
8622 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
8623 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX;
8624 req->enables |=
8625 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
8626 } else {
8627 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
8628 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX;
8629 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
8630 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX;
8631 req->enables |=
8632 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE);
8633 if (bp->hwrm_spec_code >= 0x10201) {
8634 req->auto_pause = req->force_pause;
8635 req->enables |= cpu_to_le32(
8636 PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
8637 }
8638 }
8639 }
8640
8641 static void bnxt_hwrm_set_link_common(struct bnxt *bp,
8642 struct hwrm_port_phy_cfg_input *req)
8643 {
8644 u8 autoneg = bp->link_info.autoneg;
8645 u16 fw_link_speed = bp->link_info.req_link_speed;
8646 u16 advertising = bp->link_info.advertising;
8647
8648 if (autoneg & BNXT_AUTONEG_SPEED) {
8649 req->auto_mode |=
8650 PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK;
8651
8652 req->enables |= cpu_to_le32(
8653 PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK);
8654 req->auto_link_speed_mask = cpu_to_le16(advertising);
8655
8656 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE);
8657 req->flags |=
8658 cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG);
8659 } else {
8660 req->force_link_speed = cpu_to_le16(fw_link_speed);
8661 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE);
8662 }
8663
8664 /* tell chimp that the setting takes effect immediately */
8665 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY);
8666 }
8667
8668 int bnxt_hwrm_set_pause(struct bnxt *bp)
8669 {
8670 struct hwrm_port_phy_cfg_input req = {0};
8671 int rc;
8672
8673 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
8674 bnxt_hwrm_set_pause_common(bp, &req);
8675
8676 if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) ||
8677 bp->link_info.force_link_chng)
8678 bnxt_hwrm_set_link_common(bp, &req);
8679
8680 mutex_lock(&bp->hwrm_cmd_lock);
8681 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8682 if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) {
8683 /* since changing of pause setting doesn't trigger any link
8684 * change event, the driver needs to update the current pause
8685 * result upon successfully return of the phy_cfg command
8686 */
8687 bp->link_info.pause =
8688 bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl;
8689 bp->link_info.auto_pause_setting = 0;
8690 if (!bp->link_info.force_link_chng)
8691 bnxt_report_link(bp);
8692 }
8693 bp->link_info.force_link_chng = false;
8694 mutex_unlock(&bp->hwrm_cmd_lock);
8695 return rc;
8696 }
8697
8698 static void bnxt_hwrm_set_eee(struct bnxt *bp,
8699 struct hwrm_port_phy_cfg_input *req)
8700 {
8701 struct ethtool_eee *eee = &bp->eee;
8702
8703 if (eee->eee_enabled) {
8704 u16 eee_speeds;
8705 u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE;
8706
8707 if (eee->tx_lpi_enabled)
8708 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE;
8709 else
8710 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE;
8711
8712 req->flags |= cpu_to_le32(flags);
8713 eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised);
8714 req->eee_link_speed_mask = cpu_to_le16(eee_speeds);
8715 req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer);
8716 } else {
8717 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE);
8718 }
8719 }
8720
8721 int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee)
8722 {
8723 struct hwrm_port_phy_cfg_input req = {0};
8724
8725 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
8726 if (set_pause)
8727 bnxt_hwrm_set_pause_common(bp, &req);
8728
8729 bnxt_hwrm_set_link_common(bp, &req);
8730
8731 if (set_eee)
8732 bnxt_hwrm_set_eee(bp, &req);
8733 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8734 }
8735
8736 static int bnxt_hwrm_shutdown_link(struct bnxt *bp)
8737 {
8738 struct hwrm_port_phy_cfg_input req = {0};
8739
8740 if (!BNXT_SINGLE_PF(bp))
8741 return 0;
8742
8743 if (pci_num_vf(bp->pdev))
8744 return 0;
8745
8746 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
8747 req.flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN);
8748 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8749 }
8750
8751 static int bnxt_fw_init_one(struct bnxt *bp);
8752
8753 static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
8754 {
8755 struct hwrm_func_drv_if_change_output *resp = bp->hwrm_cmd_resp_addr;
8756 struct hwrm_func_drv_if_change_input req = {0};
8757 bool resc_reinit = false, fw_reset = false;
8758 u32 flags = 0;
8759 int rc;
8760
8761 if (!(bp->fw_cap & BNXT_FW_CAP_IF_CHANGE))
8762 return 0;
8763
8764 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_IF_CHANGE, -1, -1);
8765 if (up)
8766 req.flags = cpu_to_le32(FUNC_DRV_IF_CHANGE_REQ_FLAGS_UP);
8767 mutex_lock(&bp->hwrm_cmd_lock);
8768 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8769 if (!rc)
8770 flags = le32_to_cpu(resp->flags);
8771 mutex_unlock(&bp->hwrm_cmd_lock);
8772 if (rc)
8773 return rc;
8774
8775 if (!up)
8776 return 0;
8777
8778 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_RESC_CHANGE)
8779 resc_reinit = true;
8780 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE)
8781 fw_reset = true;
8782
8783 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) {
8784 netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n");
8785 return -ENODEV;
8786 }
8787 if (resc_reinit || fw_reset) {
8788 if (fw_reset) {
8789 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
8790 bnxt_ulp_stop(bp);
8791 bnxt_free_ctx_mem(bp);
8792 kfree(bp->ctx);
8793 bp->ctx = NULL;
8794 bnxt_dcb_free(bp);
8795 rc = bnxt_fw_init_one(bp);
8796 if (rc) {
8797 set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
8798 return rc;
8799 }
8800 bnxt_clear_int_mode(bp);
8801 rc = bnxt_init_int_mode(bp);
8802 if (rc) {
8803 netdev_err(bp->dev, "init int mode failed\n");
8804 return rc;
8805 }
8806 set_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
8807 }
8808 if (BNXT_NEW_RM(bp)) {
8809 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
8810
8811 rc = bnxt_hwrm_func_resc_qcaps(bp, true);
8812 hw_resc->resv_cp_rings = 0;
8813 hw_resc->resv_stat_ctxs = 0;
8814 hw_resc->resv_irqs = 0;
8815 hw_resc->resv_tx_rings = 0;
8816 hw_resc->resv_rx_rings = 0;
8817 hw_resc->resv_hw_ring_grps = 0;
8818 hw_resc->resv_vnics = 0;
8819 if (!fw_reset) {
8820 bp->tx_nr_rings = 0;
8821 bp->rx_nr_rings = 0;
8822 }
8823 }
8824 }
8825 return 0;
8826 }
8827
8828 static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp)
8829 {
8830 struct hwrm_port_led_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
8831 struct hwrm_port_led_qcaps_input req = {0};
8832 struct bnxt_pf_info *pf = &bp->pf;
8833 int rc;
8834
8835 bp->num_leds = 0;
8836 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601)
8837 return 0;
8838
8839 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_LED_QCAPS, -1, -1);
8840 req.port_id = cpu_to_le16(pf->port_id);
8841 mutex_lock(&bp->hwrm_cmd_lock);
8842 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8843 if (rc) {
8844 mutex_unlock(&bp->hwrm_cmd_lock);
8845 return rc;
8846 }
8847 if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) {
8848 int i;
8849
8850 bp->num_leds = resp->num_leds;
8851 memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) *
8852 bp->num_leds);
8853 for (i = 0; i < bp->num_leds; i++) {
8854 struct bnxt_led_info *led = &bp->leds[i];
8855 __le16 caps = led->led_state_caps;
8856
8857 if (!led->led_group_id ||
8858 !BNXT_LED_ALT_BLINK_CAP(caps)) {
8859 bp->num_leds = 0;
8860 break;
8861 }
8862 }
8863 }
8864 mutex_unlock(&bp->hwrm_cmd_lock);
8865 return 0;
8866 }
8867
8868 int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp)
8869 {
8870 struct hwrm_wol_filter_alloc_input req = {0};
8871 struct hwrm_wol_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr;
8872 int rc;
8873
8874 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_WOL_FILTER_ALLOC, -1, -1);
8875 req.port_id = cpu_to_le16(bp->pf.port_id);
8876 req.wol_type = WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT;
8877 req.enables = cpu_to_le32(WOL_FILTER_ALLOC_REQ_ENABLES_MAC_ADDRESS);
8878 memcpy(req.mac_address, bp->dev->dev_addr, ETH_ALEN);
8879 mutex_lock(&bp->hwrm_cmd_lock);
8880 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8881 if (!rc)
8882 bp->wol_filter_id = resp->wol_filter_id;
8883 mutex_unlock(&bp->hwrm_cmd_lock);
8884 return rc;
8885 }
8886
8887 int bnxt_hwrm_free_wol_fltr(struct bnxt *bp)
8888 {
8889 struct hwrm_wol_filter_free_input req = {0};
8890
8891 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_WOL_FILTER_FREE, -1, -1);
8892 req.port_id = cpu_to_le16(bp->pf.port_id);
8893 req.enables = cpu_to_le32(WOL_FILTER_FREE_REQ_ENABLES_WOL_FILTER_ID);
8894 req.wol_filter_id = bp->wol_filter_id;
8895 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8896 }
8897
8898 static u16 bnxt_hwrm_get_wol_fltrs(struct bnxt *bp, u16 handle)
8899 {
8900 struct hwrm_wol_filter_qcfg_input req = {0};
8901 struct hwrm_wol_filter_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
8902 u16 next_handle = 0;
8903 int rc;
8904
8905 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_WOL_FILTER_QCFG, -1, -1);
8906 req.port_id = cpu_to_le16(bp->pf.port_id);
8907 req.handle = cpu_to_le16(handle);
8908 mutex_lock(&bp->hwrm_cmd_lock);
8909 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
8910 if (!rc) {
8911 next_handle = le16_to_cpu(resp->next_handle);
8912 if (next_handle != 0) {
8913 if (resp->wol_type ==
8914 WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT) {
8915 bp->wol = 1;
8916 bp->wol_filter_id = resp->wol_filter_id;
8917 }
8918 }
8919 }
8920 mutex_unlock(&bp->hwrm_cmd_lock);
8921 return next_handle;
8922 }
8923
8924 static void bnxt_get_wol_settings(struct bnxt *bp)
8925 {
8926 u16 handle = 0;
8927
8928 bp->wol = 0;
8929 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP))
8930 return;
8931
8932 do {
8933 handle = bnxt_hwrm_get_wol_fltrs(bp, handle);
8934 } while (handle && handle != 0xffff);
8935 }
8936
8937 #ifdef CONFIG_BNXT_HWMON
8938 static ssize_t bnxt_show_temp(struct device *dev,
8939 struct device_attribute *devattr, char *buf)
8940 {
8941 struct hwrm_temp_monitor_query_input req = {0};
8942 struct hwrm_temp_monitor_query_output *resp;
8943 struct bnxt *bp = dev_get_drvdata(dev);
8944 u32 temp = 0;
8945
8946 resp = bp->hwrm_cmd_resp_addr;
8947 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TEMP_MONITOR_QUERY, -1, -1);
8948 mutex_lock(&bp->hwrm_cmd_lock);
8949 if (!_hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT))
8950 temp = resp->temp * 1000; /* display millidegree */
8951 mutex_unlock(&bp->hwrm_cmd_lock);
8952
8953 return sprintf(buf, "%u\n", temp);
8954 }
8955 static SENSOR_DEVICE_ATTR(temp1_input, 0444, bnxt_show_temp, NULL, 0);
8956
8957 static struct attribute *bnxt_attrs[] = {
8958 &sensor_dev_attr_temp1_input.dev_attr.attr,
8959 NULL
8960 };
8961 ATTRIBUTE_GROUPS(bnxt);
8962
8963 static void bnxt_hwmon_close(struct bnxt *bp)
8964 {
8965 if (bp->hwmon_dev) {
8966 hwmon_device_unregister(bp->hwmon_dev);
8967 bp->hwmon_dev = NULL;
8968 }
8969 }
8970
8971 static void bnxt_hwmon_open(struct bnxt *bp)
8972 {
8973 struct pci_dev *pdev = bp->pdev;
8974
8975 if (bp->hwmon_dev)
8976 return;
8977
8978 bp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
8979 DRV_MODULE_NAME, bp,
8980 bnxt_groups);
8981 if (IS_ERR(bp->hwmon_dev)) {
8982 bp->hwmon_dev = NULL;
8983 dev_warn(&pdev->dev, "Cannot register hwmon device\n");
8984 }
8985 }
8986 #else
8987 static void bnxt_hwmon_close(struct bnxt *bp)
8988 {
8989 }
8990
8991 static void bnxt_hwmon_open(struct bnxt *bp)
8992 {
8993 }
8994 #endif
8995
8996 static bool bnxt_eee_config_ok(struct bnxt *bp)
8997 {
8998 struct ethtool_eee *eee = &bp->eee;
8999 struct bnxt_link_info *link_info = &bp->link_info;
9000
9001 if (!(bp->flags & BNXT_FLAG_EEE_CAP))
9002 return true;
9003
9004 if (eee->eee_enabled) {
9005 u32 advertising =
9006 _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0);
9007
9008 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
9009 eee->eee_enabled = 0;
9010 return false;
9011 }
9012 if (eee->advertised & ~advertising) {
9013 eee->advertised = advertising & eee->supported;
9014 return false;
9015 }
9016 }
9017 return true;
9018 }
9019
9020 static int bnxt_update_phy_setting(struct bnxt *bp)
9021 {
9022 int rc;
9023 bool update_link = false;
9024 bool update_pause = false;
9025 bool update_eee = false;
9026 struct bnxt_link_info *link_info = &bp->link_info;
9027
9028 rc = bnxt_update_link(bp, true);
9029 if (rc) {
9030 netdev_err(bp->dev, "failed to update link (rc: %x)\n",
9031 rc);
9032 return rc;
9033 }
9034 if (!BNXT_SINGLE_PF(bp))
9035 return 0;
9036
9037 if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
9038 (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) !=
9039 link_info->req_flow_ctrl)
9040 update_pause = true;
9041 if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
9042 link_info->force_pause_setting != link_info->req_flow_ctrl)
9043 update_pause = true;
9044 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
9045 if (BNXT_AUTO_MODE(link_info->auto_mode))
9046 update_link = true;
9047 if (link_info->req_link_speed != link_info->force_link_speed)
9048 update_link = true;
9049 if (link_info->req_duplex != link_info->duplex_setting)
9050 update_link = true;
9051 } else {
9052 if (link_info->auto_mode == BNXT_LINK_AUTO_NONE)
9053 update_link = true;
9054 if (link_info->advertising != link_info->auto_link_speeds)
9055 update_link = true;
9056 }
9057
9058 /* The last close may have shutdown the link, so need to call
9059 * PHY_CFG to bring it back up.
9060 */
9061 if (!bp->link_info.link_up)
9062 update_link = true;
9063
9064 if (!bnxt_eee_config_ok(bp))
9065 update_eee = true;
9066
9067 if (update_link)
9068 rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee);
9069 else if (update_pause)
9070 rc = bnxt_hwrm_set_pause(bp);
9071 if (rc) {
9072 netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n",
9073 rc);
9074 return rc;
9075 }
9076
9077 return rc;
9078 }
9079
9080 /* Common routine to pre-map certain register block to different GRC window.
9081 * A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows
9082 * in PF and 3 windows in VF that can be customized to map in different
9083 * register blocks.
9084 */
9085 static void bnxt_preset_reg_win(struct bnxt *bp)
9086 {
9087 if (BNXT_PF(bp)) {
9088 /* CAG registers map to GRC window #4 */
9089 writel(BNXT_CAG_REG_BASE,
9090 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12);
9091 }
9092 }
9093
9094 static int bnxt_init_dflt_ring_mode(struct bnxt *bp);
9095
9096 static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
9097 {
9098 int rc = 0;
9099
9100 bnxt_preset_reg_win(bp);
9101 netif_carrier_off(bp->dev);
9102 if (irq_re_init) {
9103 /* Reserve rings now if none were reserved at driver probe. */
9104 rc = bnxt_init_dflt_ring_mode(bp);
9105 if (rc) {
9106 netdev_err(bp->dev, "Failed to reserve default rings at open\n");
9107 return rc;
9108 }
9109 }
9110 rc = bnxt_reserve_rings(bp, irq_re_init);
9111 if (rc)
9112 return rc;
9113 if ((bp->flags & BNXT_FLAG_RFS) &&
9114 !(bp->flags & BNXT_FLAG_USING_MSIX)) {
9115 /* disable RFS if falling back to INTA */
9116 bp->dev->hw_features &= ~NETIF_F_NTUPLE;
9117 bp->flags &= ~BNXT_FLAG_RFS;
9118 }
9119
9120 rc = bnxt_alloc_mem(bp, irq_re_init);
9121 if (rc) {
9122 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
9123 goto open_err_free_mem;
9124 }
9125
9126 if (irq_re_init) {
9127 bnxt_init_napi(bp);
9128 rc = bnxt_request_irq(bp);
9129 if (rc) {
9130 netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc);
9131 goto open_err_irq;
9132 }
9133 }
9134
9135 bnxt_enable_napi(bp);
9136 bnxt_debug_dev_init(bp);
9137
9138 rc = bnxt_init_nic(bp, irq_re_init);
9139 if (rc) {
9140 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
9141 goto open_err;
9142 }
9143
9144 if (link_re_init) {
9145 mutex_lock(&bp->link_lock);
9146 rc = bnxt_update_phy_setting(bp);
9147 mutex_unlock(&bp->link_lock);
9148 if (rc) {
9149 netdev_warn(bp->dev, "failed to update phy settings\n");
9150 if (BNXT_SINGLE_PF(bp)) {
9151 bp->link_info.phy_retry = true;
9152 bp->link_info.phy_retry_expires =
9153 jiffies + 5 * HZ;
9154 }
9155 }
9156 }
9157
9158 if (irq_re_init)
9159 udp_tunnel_get_rx_info(bp->dev);
9160
9161 set_bit(BNXT_STATE_OPEN, &bp->state);
9162 bnxt_enable_int(bp);
9163 /* Enable TX queues */
9164 bnxt_tx_enable(bp);
9165 mod_timer(&bp->timer, jiffies + bp->current_interval);
9166 /* Poll link status and check for SFP+ module status */
9167 bnxt_get_port_module_status(bp);
9168
9169 /* VF-reps may need to be re-opened after the PF is re-opened */
9170 if (BNXT_PF(bp))
9171 bnxt_vf_reps_open(bp);
9172 return 0;
9173
9174 open_err:
9175 bnxt_debug_dev_exit(bp);
9176 bnxt_disable_napi(bp);
9177
9178 open_err_irq:
9179 bnxt_del_napi(bp);
9180
9181 open_err_free_mem:
9182 bnxt_free_skbs(bp);
9183 bnxt_free_irq(bp);
9184 bnxt_free_mem(bp, true);
9185 return rc;
9186 }
9187
9188 /* rtnl_lock held */
9189 int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
9190 {
9191 int rc = 0;
9192
9193 rc = __bnxt_open_nic(bp, irq_re_init, link_re_init);
9194 if (rc) {
9195 netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc);
9196 dev_close(bp->dev);
9197 }
9198 return rc;
9199 }
9200
9201 /* rtnl_lock held, open the NIC half way by allocating all resources, but
9202 * NAPI, IRQ, and TX are not enabled. This is mainly used for offline
9203 * self tests.
9204 */
9205 int bnxt_half_open_nic(struct bnxt *bp)
9206 {
9207 int rc = 0;
9208
9209 rc = bnxt_alloc_mem(bp, false);
9210 if (rc) {
9211 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
9212 goto half_open_err;
9213 }
9214 rc = bnxt_init_nic(bp, false);
9215 if (rc) {
9216 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
9217 goto half_open_err;
9218 }
9219 return 0;
9220
9221 half_open_err:
9222 bnxt_free_skbs(bp);
9223 bnxt_free_mem(bp, false);
9224 dev_close(bp->dev);
9225 return rc;
9226 }
9227
9228 /* rtnl_lock held, this call can only be made after a previous successful
9229 * call to bnxt_half_open_nic().
9230 */
9231 void bnxt_half_close_nic(struct bnxt *bp)
9232 {
9233 bnxt_hwrm_resource_free(bp, false, false);
9234 bnxt_free_skbs(bp);
9235 bnxt_free_mem(bp, false);
9236 }
9237
9238 static void bnxt_reenable_sriov(struct bnxt *bp)
9239 {
9240 if (BNXT_PF(bp)) {
9241 struct bnxt_pf_info *pf = &bp->pf;
9242 int n = pf->active_vfs;
9243
9244 if (n)
9245 bnxt_cfg_hw_sriov(bp, &n, true);
9246 }
9247 }
9248
9249 static int bnxt_open(struct net_device *dev)
9250 {
9251 struct bnxt *bp = netdev_priv(dev);
9252 int rc;
9253
9254 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
9255 netdev_err(bp->dev, "A previous firmware reset did not complete, aborting\n");
9256 return -ENODEV;
9257 }
9258
9259 rc = bnxt_hwrm_if_change(bp, true);
9260 if (rc)
9261 return rc;
9262 rc = __bnxt_open_nic(bp, true, true);
9263 if (rc) {
9264 bnxt_hwrm_if_change(bp, false);
9265 } else {
9266 if (test_and_clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) {
9267 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
9268 bnxt_ulp_start(bp, 0);
9269 bnxt_reenable_sriov(bp);
9270 }
9271 }
9272 bnxt_hwmon_open(bp);
9273 }
9274
9275 return rc;
9276 }
9277
9278 static bool bnxt_drv_busy(struct bnxt *bp)
9279 {
9280 return (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state) ||
9281 test_bit(BNXT_STATE_READ_STATS, &bp->state));
9282 }
9283
9284 static void bnxt_get_ring_stats(struct bnxt *bp,
9285 struct rtnl_link_stats64 *stats);
9286
9287 static void __bnxt_close_nic(struct bnxt *bp, bool irq_re_init,
9288 bool link_re_init)
9289 {
9290 /* Close the VF-reps before closing PF */
9291 if (BNXT_PF(bp))
9292 bnxt_vf_reps_close(bp);
9293
9294 /* Change device state to avoid TX queue wake up's */
9295 bnxt_tx_disable(bp);
9296
9297 clear_bit(BNXT_STATE_OPEN, &bp->state);
9298 smp_mb__after_atomic();
9299 while (bnxt_drv_busy(bp))
9300 msleep(20);
9301
9302 /* Flush rings and and disable interrupts */
9303 bnxt_shutdown_nic(bp, irq_re_init);
9304
9305 /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */
9306
9307 bnxt_debug_dev_exit(bp);
9308 bnxt_disable_napi(bp);
9309 del_timer_sync(&bp->timer);
9310 bnxt_free_skbs(bp);
9311
9312 /* Save ring stats before shutdown */
9313 if (bp->bnapi)
9314 bnxt_get_ring_stats(bp, &bp->net_stats_prev);
9315 if (irq_re_init) {
9316 bnxt_free_irq(bp);
9317 bnxt_del_napi(bp);
9318 }
9319 bnxt_free_mem(bp, irq_re_init);
9320 }
9321
9322 int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
9323 {
9324 int rc = 0;
9325
9326 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
9327 /* If we get here, it means firmware reset is in progress
9328 * while we are trying to close. We can safely proceed with
9329 * the close because we are holding rtnl_lock(). Some firmware
9330 * messages may fail as we proceed to close. We set the
9331 * ABORT_ERR flag here so that the FW reset thread will later
9332 * abort when it gets the rtnl_lock() and sees the flag.
9333 */
9334 netdev_warn(bp->dev, "FW reset in progress during close, FW reset will be aborted\n");
9335 set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
9336 }
9337
9338 #ifdef CONFIG_BNXT_SRIOV
9339 if (bp->sriov_cfg) {
9340 rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait,
9341 !bp->sriov_cfg,
9342 BNXT_SRIOV_CFG_WAIT_TMO);
9343 if (rc)
9344 netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n");
9345 }
9346 #endif
9347 __bnxt_close_nic(bp, irq_re_init, link_re_init);
9348 return rc;
9349 }
9350
9351 static int bnxt_close(struct net_device *dev)
9352 {
9353 struct bnxt *bp = netdev_priv(dev);
9354
9355 bnxt_hwmon_close(bp);
9356 bnxt_close_nic(bp, true, true);
9357 bnxt_hwrm_shutdown_link(bp);
9358 bnxt_hwrm_if_change(bp, false);
9359 return 0;
9360 }
9361
9362 static int bnxt_hwrm_port_phy_read(struct bnxt *bp, u16 phy_addr, u16 reg,
9363 u16 *val)
9364 {
9365 struct hwrm_port_phy_mdio_read_output *resp = bp->hwrm_cmd_resp_addr;
9366 struct hwrm_port_phy_mdio_read_input req = {0};
9367 int rc;
9368
9369 if (bp->hwrm_spec_code < 0x10a00)
9370 return -EOPNOTSUPP;
9371
9372 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_MDIO_READ, -1, -1);
9373 req.port_id = cpu_to_le16(bp->pf.port_id);
9374 req.phy_addr = phy_addr;
9375 req.reg_addr = cpu_to_le16(reg & 0x1f);
9376 if (mdio_phy_id_is_c45(phy_addr)) {
9377 req.cl45_mdio = 1;
9378 req.phy_addr = mdio_phy_id_prtad(phy_addr);
9379 req.dev_addr = mdio_phy_id_devad(phy_addr);
9380 req.reg_addr = cpu_to_le16(reg);
9381 }
9382
9383 mutex_lock(&bp->hwrm_cmd_lock);
9384 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
9385 if (!rc)
9386 *val = le16_to_cpu(resp->reg_data);
9387 mutex_unlock(&bp->hwrm_cmd_lock);
9388 return rc;
9389 }
9390
9391 static int bnxt_hwrm_port_phy_write(struct bnxt *bp, u16 phy_addr, u16 reg,
9392 u16 val)
9393 {
9394 struct hwrm_port_phy_mdio_write_input req = {0};
9395
9396 if (bp->hwrm_spec_code < 0x10a00)
9397 return -EOPNOTSUPP;
9398
9399 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_MDIO_WRITE, -1, -1);
9400 req.port_id = cpu_to_le16(bp->pf.port_id);
9401 req.phy_addr = phy_addr;
9402 req.reg_addr = cpu_to_le16(reg & 0x1f);
9403 if (mdio_phy_id_is_c45(phy_addr)) {
9404 req.cl45_mdio = 1;
9405 req.phy_addr = mdio_phy_id_prtad(phy_addr);
9406 req.dev_addr = mdio_phy_id_devad(phy_addr);
9407 req.reg_addr = cpu_to_le16(reg);
9408 }
9409 req.reg_data = cpu_to_le16(val);
9410
9411 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
9412 }
9413
9414 /* rtnl_lock held */
9415 static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
9416 {
9417 struct mii_ioctl_data *mdio = if_mii(ifr);
9418 struct bnxt *bp = netdev_priv(dev);
9419 int rc;
9420
9421 switch (cmd) {
9422 case SIOCGMIIPHY:
9423 mdio->phy_id = bp->link_info.phy_addr;
9424
9425 /* fallthru */
9426 case SIOCGMIIREG: {
9427 u16 mii_regval = 0;
9428
9429 if (!netif_running(dev))
9430 return -EAGAIN;
9431
9432 rc = bnxt_hwrm_port_phy_read(bp, mdio->phy_id, mdio->reg_num,
9433 &mii_regval);
9434 mdio->val_out = mii_regval;
9435 return rc;
9436 }
9437
9438 case SIOCSMIIREG:
9439 if (!netif_running(dev))
9440 return -EAGAIN;
9441
9442 return bnxt_hwrm_port_phy_write(bp, mdio->phy_id, mdio->reg_num,
9443 mdio->val_in);
9444
9445 default:
9446 /* do nothing */
9447 break;
9448 }
9449 return -EOPNOTSUPP;
9450 }
9451
9452 static void bnxt_get_ring_stats(struct bnxt *bp,
9453 struct rtnl_link_stats64 *stats)
9454 {
9455 int i;
9456
9457
9458 for (i = 0; i < bp->cp_nr_rings; i++) {
9459 struct bnxt_napi *bnapi = bp->bnapi[i];
9460 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
9461 struct ctx_hw_stats *hw_stats = cpr->hw_stats;
9462
9463 stats->rx_packets += le64_to_cpu(hw_stats->rx_ucast_pkts);
9464 stats->rx_packets += le64_to_cpu(hw_stats->rx_mcast_pkts);
9465 stats->rx_packets += le64_to_cpu(hw_stats->rx_bcast_pkts);
9466
9467 stats->tx_packets += le64_to_cpu(hw_stats->tx_ucast_pkts);
9468 stats->tx_packets += le64_to_cpu(hw_stats->tx_mcast_pkts);
9469 stats->tx_packets += le64_to_cpu(hw_stats->tx_bcast_pkts);
9470
9471 stats->rx_bytes += le64_to_cpu(hw_stats->rx_ucast_bytes);
9472 stats->rx_bytes += le64_to_cpu(hw_stats->rx_mcast_bytes);
9473 stats->rx_bytes += le64_to_cpu(hw_stats->rx_bcast_bytes);
9474
9475 stats->tx_bytes += le64_to_cpu(hw_stats->tx_ucast_bytes);
9476 stats->tx_bytes += le64_to_cpu(hw_stats->tx_mcast_bytes);
9477 stats->tx_bytes += le64_to_cpu(hw_stats->tx_bcast_bytes);
9478
9479 stats->rx_missed_errors +=
9480 le64_to_cpu(hw_stats->rx_discard_pkts);
9481
9482 stats->multicast += le64_to_cpu(hw_stats->rx_mcast_pkts);
9483
9484 stats->tx_dropped += le64_to_cpu(hw_stats->tx_drop_pkts);
9485 }
9486 }
9487
9488 static void bnxt_add_prev_stats(struct bnxt *bp,
9489 struct rtnl_link_stats64 *stats)
9490 {
9491 struct rtnl_link_stats64 *prev_stats = &bp->net_stats_prev;
9492
9493 stats->rx_packets += prev_stats->rx_packets;
9494 stats->tx_packets += prev_stats->tx_packets;
9495 stats->rx_bytes += prev_stats->rx_bytes;
9496 stats->tx_bytes += prev_stats->tx_bytes;
9497 stats->rx_missed_errors += prev_stats->rx_missed_errors;
9498 stats->multicast += prev_stats->multicast;
9499 stats->tx_dropped += prev_stats->tx_dropped;
9500 }
9501
9502 static void
9503 bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
9504 {
9505 struct bnxt *bp = netdev_priv(dev);
9506
9507 set_bit(BNXT_STATE_READ_STATS, &bp->state);
9508 /* Make sure bnxt_close_nic() sees that we are reading stats before
9509 * we check the BNXT_STATE_OPEN flag.
9510 */
9511 smp_mb__after_atomic();
9512 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
9513 clear_bit(BNXT_STATE_READ_STATS, &bp->state);
9514 *stats = bp->net_stats_prev;
9515 return;
9516 }
9517
9518 bnxt_get_ring_stats(bp, stats);
9519 bnxt_add_prev_stats(bp, stats);
9520
9521 if (bp->flags & BNXT_FLAG_PORT_STATS) {
9522 struct rx_port_stats *rx = bp->hw_rx_port_stats;
9523 struct tx_port_stats *tx = bp->hw_tx_port_stats;
9524
9525 stats->rx_crc_errors = le64_to_cpu(rx->rx_fcs_err_frames);
9526 stats->rx_frame_errors = le64_to_cpu(rx->rx_align_err_frames);
9527 stats->rx_length_errors = le64_to_cpu(rx->rx_undrsz_frames) +
9528 le64_to_cpu(rx->rx_ovrsz_frames) +
9529 le64_to_cpu(rx->rx_runt_frames);
9530 stats->rx_errors = le64_to_cpu(rx->rx_false_carrier_frames) +
9531 le64_to_cpu(rx->rx_jbr_frames);
9532 stats->collisions = le64_to_cpu(tx->tx_total_collisions);
9533 stats->tx_fifo_errors = le64_to_cpu(tx->tx_fifo_underruns);
9534 stats->tx_errors = le64_to_cpu(tx->tx_err);
9535 }
9536 clear_bit(BNXT_STATE_READ_STATS, &bp->state);
9537 }
9538
9539 static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask)
9540 {
9541 struct net_device *dev = bp->dev;
9542 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
9543 struct netdev_hw_addr *ha;
9544 u8 *haddr;
9545 int mc_count = 0;
9546 bool update = false;
9547 int off = 0;
9548
9549 netdev_for_each_mc_addr(ha, dev) {
9550 if (mc_count >= BNXT_MAX_MC_ADDRS) {
9551 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
9552 vnic->mc_list_count = 0;
9553 return false;
9554 }
9555 haddr = ha->addr;
9556 if (!ether_addr_equal(haddr, vnic->mc_list + off)) {
9557 memcpy(vnic->mc_list + off, haddr, ETH_ALEN);
9558 update = true;
9559 }
9560 off += ETH_ALEN;
9561 mc_count++;
9562 }
9563 if (mc_count)
9564 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST;
9565
9566 if (mc_count != vnic->mc_list_count) {
9567 vnic->mc_list_count = mc_count;
9568 update = true;
9569 }
9570 return update;
9571 }
9572
9573 static bool bnxt_uc_list_updated(struct bnxt *bp)
9574 {
9575 struct net_device *dev = bp->dev;
9576 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
9577 struct netdev_hw_addr *ha;
9578 int off = 0;
9579
9580 if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1))
9581 return true;
9582
9583 netdev_for_each_uc_addr(ha, dev) {
9584 if (!ether_addr_equal(ha->addr, vnic->uc_list + off))
9585 return true;
9586
9587 off += ETH_ALEN;
9588 }
9589 return false;
9590 }
9591
9592 static void bnxt_set_rx_mode(struct net_device *dev)
9593 {
9594 struct bnxt *bp = netdev_priv(dev);
9595 struct bnxt_vnic_info *vnic;
9596 bool mc_update = false;
9597 bool uc_update;
9598 u32 mask;
9599
9600 if (!test_bit(BNXT_STATE_OPEN, &bp->state))
9601 return;
9602
9603 vnic = &bp->vnic_info[0];
9604 mask = vnic->rx_mask;
9605 mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS |
9606 CFA_L2_SET_RX_MASK_REQ_MASK_MCAST |
9607 CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST |
9608 CFA_L2_SET_RX_MASK_REQ_MASK_BCAST);
9609
9610 if ((dev->flags & IFF_PROMISC) && bnxt_promisc_ok(bp))
9611 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
9612
9613 uc_update = bnxt_uc_list_updated(bp);
9614
9615 if (dev->flags & IFF_BROADCAST)
9616 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
9617 if (dev->flags & IFF_ALLMULTI) {
9618 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
9619 vnic->mc_list_count = 0;
9620 } else {
9621 mc_update = bnxt_mc_list_updated(bp, &mask);
9622 }
9623
9624 if (mask != vnic->rx_mask || uc_update || mc_update) {
9625 vnic->rx_mask = mask;
9626
9627 set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
9628 bnxt_queue_sp_work(bp);
9629 }
9630 }
9631
9632 static int bnxt_cfg_rx_mode(struct bnxt *bp)
9633 {
9634 struct net_device *dev = bp->dev;
9635 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
9636 struct netdev_hw_addr *ha;
9637 int i, off = 0, rc;
9638 bool uc_update;
9639
9640 netif_addr_lock_bh(dev);
9641 uc_update = bnxt_uc_list_updated(bp);
9642 netif_addr_unlock_bh(dev);
9643
9644 if (!uc_update)
9645 goto skip_uc;
9646
9647 mutex_lock(&bp->hwrm_cmd_lock);
9648 for (i = 1; i < vnic->uc_filter_count; i++) {
9649 struct hwrm_cfa_l2_filter_free_input req = {0};
9650
9651 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_FREE, -1,
9652 -1);
9653
9654 req.l2_filter_id = vnic->fw_l2_filter_id[i];
9655
9656 rc = _hwrm_send_message(bp, &req, sizeof(req),
9657 HWRM_CMD_TIMEOUT);
9658 }
9659 mutex_unlock(&bp->hwrm_cmd_lock);
9660
9661 vnic->uc_filter_count = 1;
9662
9663 netif_addr_lock_bh(dev);
9664 if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) {
9665 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
9666 } else {
9667 netdev_for_each_uc_addr(ha, dev) {
9668 memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN);
9669 off += ETH_ALEN;
9670 vnic->uc_filter_count++;
9671 }
9672 }
9673 netif_addr_unlock_bh(dev);
9674
9675 for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) {
9676 rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off);
9677 if (rc) {
9678 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n",
9679 rc);
9680 vnic->uc_filter_count = i;
9681 return rc;
9682 }
9683 }
9684
9685 skip_uc:
9686 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0);
9687 if (rc && vnic->mc_list_count) {
9688 netdev_info(bp->dev, "Failed setting MC filters rc: %d, turning on ALL_MCAST mode\n",
9689 rc);
9690 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
9691 vnic->mc_list_count = 0;
9692 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0);
9693 }
9694 if (rc)
9695 netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %d\n",
9696 rc);
9697
9698 return rc;
9699 }
9700
9701 static bool bnxt_can_reserve_rings(struct bnxt *bp)
9702 {
9703 #ifdef CONFIG_BNXT_SRIOV
9704 if (BNXT_NEW_RM(bp) && BNXT_VF(bp)) {
9705 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
9706
9707 /* No minimum rings were provisioned by the PF. Don't
9708 * reserve rings by default when device is down.
9709 */
9710 if (hw_resc->min_tx_rings || hw_resc->resv_tx_rings)
9711 return true;
9712
9713 if (!netif_running(bp->dev))
9714 return false;
9715 }
9716 #endif
9717 return true;
9718 }
9719
9720 /* If the chip and firmware supports RFS */
9721 static bool bnxt_rfs_supported(struct bnxt *bp)
9722 {
9723 if (bp->flags & BNXT_FLAG_CHIP_P5) {
9724 if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2)
9725 return true;
9726 return false;
9727 }
9728 if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp))
9729 return true;
9730 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
9731 return true;
9732 return false;
9733 }
9734
9735 /* If runtime conditions support RFS */
9736 static bool bnxt_rfs_capable(struct bnxt *bp)
9737 {
9738 #ifdef CONFIG_RFS_ACCEL
9739 int vnics, max_vnics, max_rss_ctxs;
9740
9741 if (bp->flags & BNXT_FLAG_CHIP_P5)
9742 return bnxt_rfs_supported(bp);
9743 if (!(bp->flags & BNXT_FLAG_MSIX_CAP) || !bnxt_can_reserve_rings(bp))
9744 return false;
9745
9746 vnics = 1 + bp->rx_nr_rings;
9747 max_vnics = bnxt_get_max_func_vnics(bp);
9748 max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp);
9749
9750 /* RSS contexts not a limiting factor */
9751 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
9752 max_rss_ctxs = max_vnics;
9753 if (vnics > max_vnics || vnics > max_rss_ctxs) {
9754 if (bp->rx_nr_rings > 1)
9755 netdev_warn(bp->dev,
9756 "Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n",
9757 min(max_rss_ctxs - 1, max_vnics - 1));
9758 return false;
9759 }
9760
9761 if (!BNXT_NEW_RM(bp))
9762 return true;
9763
9764 if (vnics == bp->hw_resc.resv_vnics)
9765 return true;
9766
9767 bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, vnics);
9768 if (vnics <= bp->hw_resc.resv_vnics)
9769 return true;
9770
9771 netdev_warn(bp->dev, "Unable to reserve resources to support NTUPLE filters.\n");
9772 bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, 1);
9773 return false;
9774 #else
9775 return false;
9776 #endif
9777 }
9778
9779 static netdev_features_t bnxt_fix_features(struct net_device *dev,
9780 netdev_features_t features)
9781 {
9782 struct bnxt *bp = netdev_priv(dev);
9783 netdev_features_t vlan_features;
9784
9785 if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp))
9786 features &= ~NETIF_F_NTUPLE;
9787
9788 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
9789 features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW);
9790
9791 if (!(features & NETIF_F_GRO))
9792 features &= ~NETIF_F_GRO_HW;
9793
9794 if (features & NETIF_F_GRO_HW)
9795 features &= ~NETIF_F_LRO;
9796
9797 /* Both CTAG and STAG VLAN accelaration on the RX side have to be
9798 * turned on or off together.
9799 */
9800 vlan_features = features & (NETIF_F_HW_VLAN_CTAG_RX |
9801 NETIF_F_HW_VLAN_STAG_RX);
9802 if (vlan_features != (NETIF_F_HW_VLAN_CTAG_RX |
9803 NETIF_F_HW_VLAN_STAG_RX)) {
9804 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
9805 features &= ~(NETIF_F_HW_VLAN_CTAG_RX |
9806 NETIF_F_HW_VLAN_STAG_RX);
9807 else if (vlan_features)
9808 features |= NETIF_F_HW_VLAN_CTAG_RX |
9809 NETIF_F_HW_VLAN_STAG_RX;
9810 }
9811 #ifdef CONFIG_BNXT_SRIOV
9812 if (BNXT_VF(bp)) {
9813 if (bp->vf.vlan) {
9814 features &= ~(NETIF_F_HW_VLAN_CTAG_RX |
9815 NETIF_F_HW_VLAN_STAG_RX);
9816 }
9817 }
9818 #endif
9819 return features;
9820 }
9821
9822 static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
9823 {
9824 struct bnxt *bp = netdev_priv(dev);
9825 u32 flags = bp->flags;
9826 u32 changes;
9827 int rc = 0;
9828 bool re_init = false;
9829 bool update_tpa = false;
9830
9831 flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS;
9832 if (features & NETIF_F_GRO_HW)
9833 flags |= BNXT_FLAG_GRO;
9834 else if (features & NETIF_F_LRO)
9835 flags |= BNXT_FLAG_LRO;
9836
9837 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
9838 flags &= ~BNXT_FLAG_TPA;
9839
9840 if (features & NETIF_F_HW_VLAN_CTAG_RX)
9841 flags |= BNXT_FLAG_STRIP_VLAN;
9842
9843 if (features & NETIF_F_NTUPLE)
9844 flags |= BNXT_FLAG_RFS;
9845
9846 changes = flags ^ bp->flags;
9847 if (changes & BNXT_FLAG_TPA) {
9848 update_tpa = true;
9849 if ((bp->flags & BNXT_FLAG_TPA) == 0 ||
9850 (flags & BNXT_FLAG_TPA) == 0 ||
9851 (bp->flags & BNXT_FLAG_CHIP_P5))
9852 re_init = true;
9853 }
9854
9855 if (changes & ~BNXT_FLAG_TPA)
9856 re_init = true;
9857
9858 if (flags != bp->flags) {
9859 u32 old_flags = bp->flags;
9860
9861 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
9862 bp->flags = flags;
9863 if (update_tpa)
9864 bnxt_set_ring_params(bp);
9865 return rc;
9866 }
9867
9868 if (re_init) {
9869 bnxt_close_nic(bp, false, false);
9870 bp->flags = flags;
9871 if (update_tpa)
9872 bnxt_set_ring_params(bp);
9873
9874 return bnxt_open_nic(bp, false, false);
9875 }
9876 if (update_tpa) {
9877 bp->flags = flags;
9878 rc = bnxt_set_tpa(bp,
9879 (flags & BNXT_FLAG_TPA) ?
9880 true : false);
9881 if (rc)
9882 bp->flags = old_flags;
9883 }
9884 }
9885 return rc;
9886 }
9887
9888 static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type,
9889 u32 ring_id, u32 *prod, u32 *cons)
9890 {
9891 struct hwrm_dbg_ring_info_get_output *resp = bp->hwrm_cmd_resp_addr;
9892 struct hwrm_dbg_ring_info_get_input req = {0};
9893 int rc;
9894
9895 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_DBG_RING_INFO_GET, -1, -1);
9896 req.ring_type = ring_type;
9897 req.fw_ring_id = cpu_to_le32(ring_id);
9898 mutex_lock(&bp->hwrm_cmd_lock);
9899 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
9900 if (!rc) {
9901 *prod = le32_to_cpu(resp->producer_index);
9902 *cons = le32_to_cpu(resp->consumer_index);
9903 }
9904 mutex_unlock(&bp->hwrm_cmd_lock);
9905 return rc;
9906 }
9907
9908 static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi)
9909 {
9910 struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
9911 int i = bnapi->index;
9912
9913 if (!txr)
9914 return;
9915
9916 netdev_info(bnapi->bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n",
9917 i, txr->tx_ring_struct.fw_ring_id, txr->tx_prod,
9918 txr->tx_cons);
9919 }
9920
9921 static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi)
9922 {
9923 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
9924 int i = bnapi->index;
9925
9926 if (!rxr)
9927 return;
9928
9929 netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n",
9930 i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod,
9931 rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod,
9932 rxr->rx_sw_agg_prod);
9933 }
9934
9935 static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi)
9936 {
9937 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
9938 int i = bnapi->index;
9939
9940 netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n",
9941 i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons);
9942 }
9943
9944 static void bnxt_dbg_dump_states(struct bnxt *bp)
9945 {
9946 int i;
9947 struct bnxt_napi *bnapi;
9948
9949 for (i = 0; i < bp->cp_nr_rings; i++) {
9950 bnapi = bp->bnapi[i];
9951 if (netif_msg_drv(bp)) {
9952 bnxt_dump_tx_sw_state(bnapi);
9953 bnxt_dump_rx_sw_state(bnapi);
9954 bnxt_dump_cp_sw_state(bnapi);
9955 }
9956 }
9957 }
9958
9959 static void bnxt_reset_task(struct bnxt *bp, bool silent)
9960 {
9961 if (!silent)
9962 bnxt_dbg_dump_states(bp);
9963 if (netif_running(bp->dev)) {
9964 int rc;
9965
9966 if (silent) {
9967 bnxt_close_nic(bp, false, false);
9968 bnxt_open_nic(bp, false, false);
9969 } else {
9970 bnxt_ulp_stop(bp);
9971 bnxt_close_nic(bp, true, false);
9972 rc = bnxt_open_nic(bp, true, false);
9973 bnxt_ulp_start(bp, rc);
9974 }
9975 }
9976 }
9977
9978 static void bnxt_tx_timeout(struct net_device *dev, unsigned int txqueue)
9979 {
9980 struct bnxt *bp = netdev_priv(dev);
9981
9982 netdev_err(bp->dev, "TX timeout detected, starting reset task!\n");
9983 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
9984 bnxt_queue_sp_work(bp);
9985 }
9986
9987 static void bnxt_fw_health_check(struct bnxt *bp)
9988 {
9989 struct bnxt_fw_health *fw_health = bp->fw_health;
9990 u32 val;
9991
9992 if (!fw_health->enabled || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
9993 return;
9994
9995 if (fw_health->tmr_counter) {
9996 fw_health->tmr_counter--;
9997 return;
9998 }
9999
10000 val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
10001 if (val == fw_health->last_fw_heartbeat)
10002 goto fw_reset;
10003
10004 fw_health->last_fw_heartbeat = val;
10005
10006 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
10007 if (val != fw_health->last_fw_reset_cnt)
10008 goto fw_reset;
10009
10010 fw_health->tmr_counter = fw_health->tmr_multiplier;
10011 return;
10012
10013 fw_reset:
10014 set_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event);
10015 bnxt_queue_sp_work(bp);
10016 }
10017
10018 static void bnxt_timer(struct timer_list *t)
10019 {
10020 struct bnxt *bp = from_timer(bp, t, timer);
10021 struct net_device *dev = bp->dev;
10022
10023 if (!netif_running(dev))
10024 return;
10025
10026 if (atomic_read(&bp->intr_sem) != 0)
10027 goto bnxt_restart_timer;
10028
10029 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
10030 bnxt_fw_health_check(bp);
10031
10032 if (bp->link_info.link_up && (bp->flags & BNXT_FLAG_PORT_STATS) &&
10033 bp->stats_coal_ticks) {
10034 set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event);
10035 bnxt_queue_sp_work(bp);
10036 }
10037
10038 if (bnxt_tc_flower_enabled(bp)) {
10039 set_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event);
10040 bnxt_queue_sp_work(bp);
10041 }
10042
10043 #ifdef CONFIG_RFS_ACCEL
10044 if ((bp->flags & BNXT_FLAG_RFS) && bp->ntp_fltr_count) {
10045 set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
10046 bnxt_queue_sp_work(bp);
10047 }
10048 #endif /*CONFIG_RFS_ACCEL*/
10049
10050 if (bp->link_info.phy_retry) {
10051 if (time_after(jiffies, bp->link_info.phy_retry_expires)) {
10052 bp->link_info.phy_retry = false;
10053 netdev_warn(bp->dev, "failed to update phy settings after maximum retries.\n");
10054 } else {
10055 set_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event);
10056 bnxt_queue_sp_work(bp);
10057 }
10058 }
10059
10060 if ((bp->flags & BNXT_FLAG_CHIP_P5) && !bp->chip_rev &&
10061 netif_carrier_ok(dev)) {
10062 set_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event);
10063 bnxt_queue_sp_work(bp);
10064 }
10065 bnxt_restart_timer:
10066 mod_timer(&bp->timer, jiffies + bp->current_interval);
10067 }
10068
10069 static void bnxt_rtnl_lock_sp(struct bnxt *bp)
10070 {
10071 /* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK
10072 * set. If the device is being closed, bnxt_close() may be holding
10073 * rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear. So we
10074 * must clear BNXT_STATE_IN_SP_TASK before holding rtnl().
10075 */
10076 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
10077 rtnl_lock();
10078 }
10079
10080 static void bnxt_rtnl_unlock_sp(struct bnxt *bp)
10081 {
10082 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
10083 rtnl_unlock();
10084 }
10085
10086 /* Only called from bnxt_sp_task() */
10087 static void bnxt_reset(struct bnxt *bp, bool silent)
10088 {
10089 bnxt_rtnl_lock_sp(bp);
10090 if (test_bit(BNXT_STATE_OPEN, &bp->state))
10091 bnxt_reset_task(bp, silent);
10092 bnxt_rtnl_unlock_sp(bp);
10093 }
10094
10095 static void bnxt_fw_reset_close(struct bnxt *bp)
10096 {
10097 bnxt_ulp_stop(bp);
10098 /* When firmware is fatal state, disable PCI device to prevent
10099 * any potential bad DMAs before freeing kernel memory.
10100 */
10101 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
10102 pci_disable_device(bp->pdev);
10103 __bnxt_close_nic(bp, true, false);
10104 bnxt_clear_int_mode(bp);
10105 bnxt_hwrm_func_drv_unrgtr(bp);
10106 if (pci_is_enabled(bp->pdev))
10107 pci_disable_device(bp->pdev);
10108 bnxt_free_ctx_mem(bp);
10109 kfree(bp->ctx);
10110 bp->ctx = NULL;
10111 }
10112
10113 static bool is_bnxt_fw_ok(struct bnxt *bp)
10114 {
10115 struct bnxt_fw_health *fw_health = bp->fw_health;
10116 bool no_heartbeat = false, has_reset = false;
10117 u32 val;
10118
10119 val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
10120 if (val == fw_health->last_fw_heartbeat)
10121 no_heartbeat = true;
10122
10123 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
10124 if (val != fw_health->last_fw_reset_cnt)
10125 has_reset = true;
10126
10127 if (!no_heartbeat && has_reset)
10128 return true;
10129
10130 return false;
10131 }
10132
10133 /* rtnl_lock is acquired before calling this function */
10134 static void bnxt_force_fw_reset(struct bnxt *bp)
10135 {
10136 struct bnxt_fw_health *fw_health = bp->fw_health;
10137 u32 wait_dsecs;
10138
10139 if (!test_bit(BNXT_STATE_OPEN, &bp->state) ||
10140 test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
10141 return;
10142
10143 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10144 bnxt_fw_reset_close(bp);
10145 wait_dsecs = fw_health->master_func_wait_dsecs;
10146 if (fw_health->master) {
10147 if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU)
10148 wait_dsecs = 0;
10149 bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW;
10150 } else {
10151 bp->fw_reset_timestamp = jiffies + wait_dsecs * HZ / 10;
10152 wait_dsecs = fw_health->normal_func_wait_dsecs;
10153 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
10154 }
10155
10156 bp->fw_reset_min_dsecs = fw_health->post_reset_wait_dsecs;
10157 bp->fw_reset_max_dsecs = fw_health->post_reset_max_wait_dsecs;
10158 bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10);
10159 }
10160
10161 void bnxt_fw_exception(struct bnxt *bp)
10162 {
10163 netdev_warn(bp->dev, "Detected firmware fatal condition, initiating reset\n");
10164 set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
10165 bnxt_rtnl_lock_sp(bp);
10166 bnxt_force_fw_reset(bp);
10167 bnxt_rtnl_unlock_sp(bp);
10168 }
10169
10170 /* Returns the number of registered VFs, or 1 if VF configuration is pending, or
10171 * < 0 on error.
10172 */
10173 static int bnxt_get_registered_vfs(struct bnxt *bp)
10174 {
10175 #ifdef CONFIG_BNXT_SRIOV
10176 int rc;
10177
10178 if (!BNXT_PF(bp))
10179 return 0;
10180
10181 rc = bnxt_hwrm_func_qcfg(bp);
10182 if (rc) {
10183 netdev_err(bp->dev, "func_qcfg cmd failed, rc = %d\n", rc);
10184 return rc;
10185 }
10186 if (bp->pf.registered_vfs)
10187 return bp->pf.registered_vfs;
10188 if (bp->sriov_cfg)
10189 return 1;
10190 #endif
10191 return 0;
10192 }
10193
10194 void bnxt_fw_reset(struct bnxt *bp)
10195 {
10196 bnxt_rtnl_lock_sp(bp);
10197 if (test_bit(BNXT_STATE_OPEN, &bp->state) &&
10198 !test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
10199 int n = 0, tmo;
10200
10201 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10202 if (bp->pf.active_vfs &&
10203 !test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
10204 n = bnxt_get_registered_vfs(bp);
10205 if (n < 0) {
10206 netdev_err(bp->dev, "Firmware reset aborted, rc = %d\n",
10207 n);
10208 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10209 dev_close(bp->dev);
10210 goto fw_reset_exit;
10211 } else if (n > 0) {
10212 u16 vf_tmo_dsecs = n * 10;
10213
10214 if (bp->fw_reset_max_dsecs < vf_tmo_dsecs)
10215 bp->fw_reset_max_dsecs = vf_tmo_dsecs;
10216 bp->fw_reset_state =
10217 BNXT_FW_RESET_STATE_POLL_VF;
10218 bnxt_queue_fw_reset_work(bp, HZ / 10);
10219 goto fw_reset_exit;
10220 }
10221 bnxt_fw_reset_close(bp);
10222 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
10223 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN;
10224 tmo = HZ / 10;
10225 } else {
10226 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
10227 tmo = bp->fw_reset_min_dsecs * HZ / 10;
10228 }
10229 bnxt_queue_fw_reset_work(bp, tmo);
10230 }
10231 fw_reset_exit:
10232 bnxt_rtnl_unlock_sp(bp);
10233 }
10234
10235 static void bnxt_chk_missed_irq(struct bnxt *bp)
10236 {
10237 int i;
10238
10239 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
10240 return;
10241
10242 for (i = 0; i < bp->cp_nr_rings; i++) {
10243 struct bnxt_napi *bnapi = bp->bnapi[i];
10244 struct bnxt_cp_ring_info *cpr;
10245 u32 fw_ring_id;
10246 int j;
10247
10248 if (!bnapi)
10249 continue;
10250
10251 cpr = &bnapi->cp_ring;
10252 for (j = 0; j < 2; j++) {
10253 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];
10254 u32 val[2];
10255
10256 if (!cpr2 || cpr2->has_more_work ||
10257 !bnxt_has_work(bp, cpr2))
10258 continue;
10259
10260 if (cpr2->cp_raw_cons != cpr2->last_cp_raw_cons) {
10261 cpr2->last_cp_raw_cons = cpr2->cp_raw_cons;
10262 continue;
10263 }
10264 fw_ring_id = cpr2->cp_ring_struct.fw_ring_id;
10265 bnxt_dbg_hwrm_ring_info_get(bp,
10266 DBG_RING_INFO_GET_REQ_RING_TYPE_L2_CMPL,
10267 fw_ring_id, &val[0], &val[1]);
10268 cpr->missed_irqs++;
10269 }
10270 }
10271 }
10272
10273 static void bnxt_cfg_ntp_filters(struct bnxt *);
10274
10275 static void bnxt_init_ethtool_link_settings(struct bnxt *bp)
10276 {
10277 struct bnxt_link_info *link_info = &bp->link_info;
10278
10279 if (BNXT_AUTO_MODE(link_info->auto_mode)) {
10280 link_info->autoneg = BNXT_AUTONEG_SPEED;
10281 if (bp->hwrm_spec_code >= 0x10201) {
10282 if (link_info->auto_pause_setting &
10283 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE)
10284 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
10285 } else {
10286 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
10287 }
10288 link_info->advertising = link_info->auto_link_speeds;
10289 } else {
10290 link_info->req_link_speed = link_info->force_link_speed;
10291 link_info->req_duplex = link_info->duplex_setting;
10292 }
10293 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
10294 link_info->req_flow_ctrl =
10295 link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH;
10296 else
10297 link_info->req_flow_ctrl = link_info->force_pause_setting;
10298 }
10299
10300 static void bnxt_sp_task(struct work_struct *work)
10301 {
10302 struct bnxt *bp = container_of(work, struct bnxt, sp_task);
10303
10304 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
10305 smp_mb__after_atomic();
10306 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
10307 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
10308 return;
10309 }
10310
10311 if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event))
10312 bnxt_cfg_rx_mode(bp);
10313
10314 if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event))
10315 bnxt_cfg_ntp_filters(bp);
10316 if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
10317 bnxt_hwrm_exec_fwd_req(bp);
10318 if (test_and_clear_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event)) {
10319 bnxt_hwrm_tunnel_dst_port_alloc(
10320 bp, bp->vxlan_port,
10321 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
10322 }
10323 if (test_and_clear_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event)) {
10324 bnxt_hwrm_tunnel_dst_port_free(
10325 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
10326 }
10327 if (test_and_clear_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event)) {
10328 bnxt_hwrm_tunnel_dst_port_alloc(
10329 bp, bp->nge_port,
10330 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
10331 }
10332 if (test_and_clear_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event)) {
10333 bnxt_hwrm_tunnel_dst_port_free(
10334 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
10335 }
10336 if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) {
10337 bnxt_hwrm_port_qstats(bp);
10338 bnxt_hwrm_port_qstats_ext(bp);
10339 bnxt_hwrm_pcie_qstats(bp);
10340 }
10341
10342 if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
10343 int rc;
10344
10345 mutex_lock(&bp->link_lock);
10346 if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT,
10347 &bp->sp_event))
10348 bnxt_hwrm_phy_qcaps(bp);
10349
10350 if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT,
10351 &bp->sp_event))
10352 bnxt_init_ethtool_link_settings(bp);
10353
10354 rc = bnxt_update_link(bp, true);
10355 mutex_unlock(&bp->link_lock);
10356 if (rc)
10357 netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
10358 rc);
10359 }
10360 if (test_and_clear_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event)) {
10361 int rc;
10362
10363 mutex_lock(&bp->link_lock);
10364 rc = bnxt_update_phy_setting(bp);
10365 mutex_unlock(&bp->link_lock);
10366 if (rc) {
10367 netdev_warn(bp->dev, "update phy settings retry failed\n");
10368 } else {
10369 bp->link_info.phy_retry = false;
10370 netdev_info(bp->dev, "update phy settings retry succeeded\n");
10371 }
10372 }
10373 if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) {
10374 mutex_lock(&bp->link_lock);
10375 bnxt_get_port_module_status(bp);
10376 mutex_unlock(&bp->link_lock);
10377 }
10378
10379 if (test_and_clear_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event))
10380 bnxt_tc_flow_stats_work(bp);
10381
10382 if (test_and_clear_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event))
10383 bnxt_chk_missed_irq(bp);
10384
10385 /* These functions below will clear BNXT_STATE_IN_SP_TASK. They
10386 * must be the last functions to be called before exiting.
10387 */
10388 if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event))
10389 bnxt_reset(bp, false);
10390
10391 if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event))
10392 bnxt_reset(bp, true);
10393
10394 if (test_and_clear_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event))
10395 bnxt_devlink_health_report(bp, BNXT_FW_RESET_NOTIFY_SP_EVENT);
10396
10397 if (test_and_clear_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event)) {
10398 if (!is_bnxt_fw_ok(bp))
10399 bnxt_devlink_health_report(bp,
10400 BNXT_FW_EXCEPTION_SP_EVENT);
10401 }
10402
10403 smp_mb__before_atomic();
10404 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
10405 }
10406
10407 /* Under rtnl_lock */
10408 int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
10409 int tx_xdp)
10410 {
10411 int max_rx, max_tx, tx_sets = 1;
10412 int tx_rings_needed, stats;
10413 int rx_rings = rx;
10414 int cp, vnics, rc;
10415
10416 if (tcs)
10417 tx_sets = tcs;
10418
10419 rc = bnxt_get_max_rings(bp, &max_rx, &max_tx, sh);
10420 if (rc)
10421 return rc;
10422
10423 if (max_rx < rx)
10424 return -ENOMEM;
10425
10426 tx_rings_needed = tx * tx_sets + tx_xdp;
10427 if (max_tx < tx_rings_needed)
10428 return -ENOMEM;
10429
10430 vnics = 1;
10431 if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS)
10432 vnics += rx_rings;
10433
10434 if (bp->flags & BNXT_FLAG_AGG_RINGS)
10435 rx_rings <<= 1;
10436 cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx;
10437 stats = cp;
10438 if (BNXT_NEW_RM(bp)) {
10439 cp += bnxt_get_ulp_msix_num(bp);
10440 stats += bnxt_get_ulp_stat_ctxs(bp);
10441 }
10442 return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp,
10443 stats, vnics);
10444 }
10445
10446 static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev)
10447 {
10448 if (bp->bar2) {
10449 pci_iounmap(pdev, bp->bar2);
10450 bp->bar2 = NULL;
10451 }
10452
10453 if (bp->bar1) {
10454 pci_iounmap(pdev, bp->bar1);
10455 bp->bar1 = NULL;
10456 }
10457
10458 if (bp->bar0) {
10459 pci_iounmap(pdev, bp->bar0);
10460 bp->bar0 = NULL;
10461 }
10462 }
10463
10464 static void bnxt_cleanup_pci(struct bnxt *bp)
10465 {
10466 bnxt_unmap_bars(bp, bp->pdev);
10467 pci_release_regions(bp->pdev);
10468 if (pci_is_enabled(bp->pdev))
10469 pci_disable_device(bp->pdev);
10470 }
10471
10472 static void bnxt_init_dflt_coal(struct bnxt *bp)
10473 {
10474 struct bnxt_coal *coal;
10475
10476 /* Tick values in micro seconds.
10477 * 1 coal_buf x bufs_per_record = 1 completion record.
10478 */
10479 coal = &bp->rx_coal;
10480 coal->coal_ticks = 10;
10481 coal->coal_bufs = 30;
10482 coal->coal_ticks_irq = 1;
10483 coal->coal_bufs_irq = 2;
10484 coal->idle_thresh = 50;
10485 coal->bufs_per_record = 2;
10486 coal->budget = 64; /* NAPI budget */
10487
10488 coal = &bp->tx_coal;
10489 coal->coal_ticks = 28;
10490 coal->coal_bufs = 30;
10491 coal->coal_ticks_irq = 2;
10492 coal->coal_bufs_irq = 2;
10493 coal->bufs_per_record = 1;
10494
10495 bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS;
10496 }
10497
10498 static void bnxt_alloc_fw_health(struct bnxt *bp)
10499 {
10500 if (bp->fw_health)
10501 return;
10502
10503 if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) &&
10504 !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
10505 return;
10506
10507 bp->fw_health = kzalloc(sizeof(*bp->fw_health), GFP_KERNEL);
10508 if (!bp->fw_health) {
10509 netdev_warn(bp->dev, "Failed to allocate fw_health\n");
10510 bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET;
10511 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
10512 }
10513 }
10514
10515 static int bnxt_fw_init_one_p1(struct bnxt *bp)
10516 {
10517 int rc;
10518
10519 bp->fw_cap = 0;
10520 rc = bnxt_hwrm_ver_get(bp);
10521 if (rc)
10522 return rc;
10523
10524 if (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL) {
10525 rc = bnxt_alloc_kong_hwrm_resources(bp);
10526 if (rc)
10527 bp->fw_cap &= ~BNXT_FW_CAP_KONG_MB_CHNL;
10528 }
10529
10530 if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
10531 bp->hwrm_max_ext_req_len > BNXT_HWRM_MAX_REQ_LEN) {
10532 rc = bnxt_alloc_hwrm_short_cmd_req(bp);
10533 if (rc)
10534 return rc;
10535 }
10536 rc = bnxt_hwrm_func_reset(bp);
10537 if (rc)
10538 return -ENODEV;
10539
10540 bnxt_hwrm_fw_set_time(bp);
10541 return 0;
10542 }
10543
10544 static int bnxt_fw_init_one_p2(struct bnxt *bp)
10545 {
10546 int rc;
10547
10548 /* Get the MAX capabilities for this function */
10549 rc = bnxt_hwrm_func_qcaps(bp);
10550 if (rc) {
10551 netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
10552 rc);
10553 return -ENODEV;
10554 }
10555
10556 rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp);
10557 if (rc)
10558 netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n",
10559 rc);
10560
10561 bnxt_alloc_fw_health(bp);
10562 rc = bnxt_hwrm_error_recovery_qcfg(bp);
10563 if (rc)
10564 netdev_warn(bp->dev, "hwrm query error recovery failure rc: %d\n",
10565 rc);
10566
10567 rc = bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false);
10568 if (rc)
10569 return -ENODEV;
10570
10571 bnxt_hwrm_func_qcfg(bp);
10572 bnxt_hwrm_vnic_qcaps(bp);
10573 bnxt_hwrm_port_led_qcaps(bp);
10574 bnxt_ethtool_init(bp);
10575 bnxt_dcb_init(bp);
10576 return 0;
10577 }
10578
10579 static void bnxt_set_dflt_rss_hash_type(struct bnxt *bp)
10580 {
10581 bp->flags &= ~BNXT_FLAG_UDP_RSS_CAP;
10582 bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 |
10583 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 |
10584 VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 |
10585 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6;
10586 if (BNXT_CHIP_P4_PLUS(bp) && bp->hwrm_spec_code >= 0x10501) {
10587 bp->flags |= BNXT_FLAG_UDP_RSS_CAP;
10588 bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 |
10589 VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6;
10590 }
10591 }
10592
10593 static void bnxt_set_dflt_rfs(struct bnxt *bp)
10594 {
10595 struct net_device *dev = bp->dev;
10596
10597 dev->hw_features &= ~NETIF_F_NTUPLE;
10598 dev->features &= ~NETIF_F_NTUPLE;
10599 bp->flags &= ~BNXT_FLAG_RFS;
10600 if (bnxt_rfs_supported(bp)) {
10601 dev->hw_features |= NETIF_F_NTUPLE;
10602 if (bnxt_rfs_capable(bp)) {
10603 bp->flags |= BNXT_FLAG_RFS;
10604 dev->features |= NETIF_F_NTUPLE;
10605 }
10606 }
10607 }
10608
10609 static void bnxt_fw_init_one_p3(struct bnxt *bp)
10610 {
10611 struct pci_dev *pdev = bp->pdev;
10612
10613 bnxt_set_dflt_rss_hash_type(bp);
10614 bnxt_set_dflt_rfs(bp);
10615
10616 bnxt_get_wol_settings(bp);
10617 if (bp->flags & BNXT_FLAG_WOL_CAP)
10618 device_set_wakeup_enable(&pdev->dev, bp->wol);
10619 else
10620 device_set_wakeup_capable(&pdev->dev, false);
10621
10622 bnxt_hwrm_set_cache_line_size(bp, cache_line_size());
10623 bnxt_hwrm_coal_params_qcaps(bp);
10624 }
10625
10626 static int bnxt_fw_init_one(struct bnxt *bp)
10627 {
10628 int rc;
10629
10630 rc = bnxt_fw_init_one_p1(bp);
10631 if (rc) {
10632 netdev_err(bp->dev, "Firmware init phase 1 failed\n");
10633 return rc;
10634 }
10635 rc = bnxt_fw_init_one_p2(bp);
10636 if (rc) {
10637 netdev_err(bp->dev, "Firmware init phase 2 failed\n");
10638 return rc;
10639 }
10640 rc = bnxt_approve_mac(bp, bp->dev->dev_addr, false);
10641 if (rc)
10642 return rc;
10643
10644 /* In case fw capabilities have changed, destroy the unneeded
10645 * reporters and create newly capable ones.
10646 */
10647 bnxt_dl_fw_reporters_destroy(bp, false);
10648 bnxt_dl_fw_reporters_create(bp);
10649 bnxt_fw_init_one_p3(bp);
10650 return 0;
10651 }
10652
10653 static void bnxt_fw_reset_writel(struct bnxt *bp, int reg_idx)
10654 {
10655 struct bnxt_fw_health *fw_health = bp->fw_health;
10656 u32 reg = fw_health->fw_reset_seq_regs[reg_idx];
10657 u32 val = fw_health->fw_reset_seq_vals[reg_idx];
10658 u32 reg_type, reg_off, delay_msecs;
10659
10660 delay_msecs = fw_health->fw_reset_seq_delay_msec[reg_idx];
10661 reg_type = BNXT_FW_HEALTH_REG_TYPE(reg);
10662 reg_off = BNXT_FW_HEALTH_REG_OFF(reg);
10663 switch (reg_type) {
10664 case BNXT_FW_HEALTH_REG_TYPE_CFG:
10665 pci_write_config_dword(bp->pdev, reg_off, val);
10666 break;
10667 case BNXT_FW_HEALTH_REG_TYPE_GRC:
10668 writel(reg_off & BNXT_GRC_BASE_MASK,
10669 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 4);
10670 reg_off = (reg_off & BNXT_GRC_OFFSET_MASK) + 0x2000;
10671 /* fall through */
10672 case BNXT_FW_HEALTH_REG_TYPE_BAR0:
10673 writel(val, bp->bar0 + reg_off);
10674 break;
10675 case BNXT_FW_HEALTH_REG_TYPE_BAR1:
10676 writel(val, bp->bar1 + reg_off);
10677 break;
10678 }
10679 if (delay_msecs) {
10680 pci_read_config_dword(bp->pdev, 0, &val);
10681 msleep(delay_msecs);
10682 }
10683 }
10684
10685 static void bnxt_reset_all(struct bnxt *bp)
10686 {
10687 struct bnxt_fw_health *fw_health = bp->fw_health;
10688 int i, rc;
10689
10690 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
10691 #ifdef CONFIG_TEE_BNXT_FW
10692 rc = tee_bnxt_fw_load();
10693 if (rc)
10694 netdev_err(bp->dev, "Unable to reset FW rc=%d\n", rc);
10695 bp->fw_reset_timestamp = jiffies;
10696 #endif
10697 return;
10698 }
10699
10700 if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_HOST) {
10701 for (i = 0; i < fw_health->fw_reset_seq_cnt; i++)
10702 bnxt_fw_reset_writel(bp, i);
10703 } else if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) {
10704 struct hwrm_fw_reset_input req = {0};
10705
10706 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
10707 req.resp_addr = cpu_to_le64(bp->hwrm_cmd_kong_resp_dma_addr);
10708 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP;
10709 req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP;
10710 req.flags = FW_RESET_REQ_FLAGS_RESET_GRACEFUL;
10711 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
10712 if (rc)
10713 netdev_warn(bp->dev, "Unable to reset FW rc=%d\n", rc);
10714 }
10715 bp->fw_reset_timestamp = jiffies;
10716 }
10717
10718 static void bnxt_fw_reset_task(struct work_struct *work)
10719 {
10720 struct bnxt *bp = container_of(work, struct bnxt, fw_reset_task.work);
10721 int rc;
10722
10723 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
10724 netdev_err(bp->dev, "bnxt_fw_reset_task() called when not in fw reset mode!\n");
10725 return;
10726 }
10727
10728 switch (bp->fw_reset_state) {
10729 case BNXT_FW_RESET_STATE_POLL_VF: {
10730 int n = bnxt_get_registered_vfs(bp);
10731 int tmo;
10732
10733 if (n < 0) {
10734 netdev_err(bp->dev, "Firmware reset aborted, subsequent func_qcfg cmd failed, rc = %d, %d msecs since reset timestamp\n",
10735 n, jiffies_to_msecs(jiffies -
10736 bp->fw_reset_timestamp));
10737 goto fw_reset_abort;
10738 } else if (n > 0) {
10739 if (time_after(jiffies, bp->fw_reset_timestamp +
10740 (bp->fw_reset_max_dsecs * HZ / 10))) {
10741 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10742 bp->fw_reset_state = 0;
10743 netdev_err(bp->dev, "Firmware reset aborted, bnxt_get_registered_vfs() returns %d\n",
10744 n);
10745 return;
10746 }
10747 bnxt_queue_fw_reset_work(bp, HZ / 10);
10748 return;
10749 }
10750 bp->fw_reset_timestamp = jiffies;
10751 rtnl_lock();
10752 bnxt_fw_reset_close(bp);
10753 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
10754 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN;
10755 tmo = HZ / 10;
10756 } else {
10757 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
10758 tmo = bp->fw_reset_min_dsecs * HZ / 10;
10759 }
10760 rtnl_unlock();
10761 bnxt_queue_fw_reset_work(bp, tmo);
10762 return;
10763 }
10764 case BNXT_FW_RESET_STATE_POLL_FW_DOWN: {
10765 u32 val;
10766
10767 val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
10768 if (!(val & BNXT_FW_STATUS_SHUTDOWN) &&
10769 !time_after(jiffies, bp->fw_reset_timestamp +
10770 (bp->fw_reset_max_dsecs * HZ / 10))) {
10771 bnxt_queue_fw_reset_work(bp, HZ / 5);
10772 return;
10773 }
10774
10775 if (!bp->fw_health->master) {
10776 u32 wait_dsecs = bp->fw_health->normal_func_wait_dsecs;
10777
10778 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
10779 bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10);
10780 return;
10781 }
10782 bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW;
10783 }
10784 /* fall through */
10785 case BNXT_FW_RESET_STATE_RESET_FW:
10786 bnxt_reset_all(bp);
10787 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
10788 bnxt_queue_fw_reset_work(bp, bp->fw_reset_min_dsecs * HZ / 10);
10789 return;
10790 case BNXT_FW_RESET_STATE_ENABLE_DEV:
10791 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) {
10792 u32 val;
10793
10794 val = bnxt_fw_health_readl(bp,
10795 BNXT_FW_RESET_INPROG_REG);
10796 if (val)
10797 netdev_warn(bp->dev, "FW reset inprog %x after min wait time.\n",
10798 val);
10799 }
10800 clear_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
10801 if (pci_enable_device(bp->pdev)) {
10802 netdev_err(bp->dev, "Cannot re-enable PCI device\n");
10803 goto fw_reset_abort;
10804 }
10805 pci_set_master(bp->pdev);
10806 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW;
10807 /* fall through */
10808 case BNXT_FW_RESET_STATE_POLL_FW:
10809 bp->hwrm_cmd_timeout = SHORT_HWRM_CMD_TIMEOUT;
10810 rc = __bnxt_hwrm_ver_get(bp, true);
10811 if (rc) {
10812 if (time_after(jiffies, bp->fw_reset_timestamp +
10813 (bp->fw_reset_max_dsecs * HZ / 10))) {
10814 netdev_err(bp->dev, "Firmware reset aborted\n");
10815 goto fw_reset_abort;
10816 }
10817 bnxt_queue_fw_reset_work(bp, HZ / 5);
10818 return;
10819 }
10820 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT;
10821 bp->fw_reset_state = BNXT_FW_RESET_STATE_OPENING;
10822 /* fall through */
10823 case BNXT_FW_RESET_STATE_OPENING:
10824 while (!rtnl_trylock()) {
10825 bnxt_queue_fw_reset_work(bp, HZ / 10);
10826 return;
10827 }
10828 rc = bnxt_open(bp->dev);
10829 if (rc) {
10830 netdev_err(bp->dev, "bnxt_open_nic() failed\n");
10831 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10832 dev_close(bp->dev);
10833 }
10834
10835 bp->fw_reset_state = 0;
10836 /* Make sure fw_reset_state is 0 before clearing the flag */
10837 smp_mb__before_atomic();
10838 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10839 bnxt_ulp_start(bp, rc);
10840 if (!rc)
10841 bnxt_reenable_sriov(bp);
10842 bnxt_dl_health_recovery_done(bp);
10843 bnxt_dl_health_status_update(bp, true);
10844 rtnl_unlock();
10845 break;
10846 }
10847 return;
10848
10849 fw_reset_abort:
10850 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
10851 if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF)
10852 bnxt_dl_health_status_update(bp, false);
10853 bp->fw_reset_state = 0;
10854 rtnl_lock();
10855 dev_close(bp->dev);
10856 rtnl_unlock();
10857 }
10858
10859 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
10860 {
10861 int rc;
10862 struct bnxt *bp = netdev_priv(dev);
10863
10864 SET_NETDEV_DEV(dev, &pdev->dev);
10865
10866 /* enable device (incl. PCI PM wakeup), and bus-mastering */
10867 rc = pci_enable_device(pdev);
10868 if (rc) {
10869 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
10870 goto init_err;
10871 }
10872
10873 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
10874 dev_err(&pdev->dev,
10875 "Cannot find PCI device base address, aborting\n");
10876 rc = -ENODEV;
10877 goto init_err_disable;
10878 }
10879
10880 rc = pci_request_regions(pdev, DRV_MODULE_NAME);
10881 if (rc) {
10882 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
10883 goto init_err_disable;
10884 }
10885
10886 if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 &&
10887 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
10888 dev_err(&pdev->dev, "System does not support DMA, aborting\n");
10889 goto init_err_disable;
10890 }
10891
10892 pci_set_master(pdev);
10893
10894 bp->dev = dev;
10895 bp->pdev = pdev;
10896
10897 bp->bar0 = pci_ioremap_bar(pdev, 0);
10898 if (!bp->bar0) {
10899 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
10900 rc = -ENOMEM;
10901 goto init_err_release;
10902 }
10903
10904 bp->bar1 = pci_ioremap_bar(pdev, 2);
10905 if (!bp->bar1) {
10906 dev_err(&pdev->dev, "Cannot map doorbell registers, aborting\n");
10907 rc = -ENOMEM;
10908 goto init_err_release;
10909 }
10910
10911 bp->bar2 = pci_ioremap_bar(pdev, 4);
10912 if (!bp->bar2) {
10913 dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n");
10914 rc = -ENOMEM;
10915 goto init_err_release;
10916 }
10917
10918 pci_enable_pcie_error_reporting(pdev);
10919
10920 INIT_WORK(&bp->sp_task, bnxt_sp_task);
10921 INIT_DELAYED_WORK(&bp->fw_reset_task, bnxt_fw_reset_task);
10922
10923 spin_lock_init(&bp->ntp_fltr_lock);
10924 #if BITS_PER_LONG == 32
10925 spin_lock_init(&bp->db_lock);
10926 #endif
10927
10928 bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE;
10929 bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE;
10930
10931 bnxt_init_dflt_coal(bp);
10932
10933 timer_setup(&bp->timer, bnxt_timer, 0);
10934 bp->current_interval = BNXT_TIMER_INTERVAL;
10935
10936 clear_bit(BNXT_STATE_OPEN, &bp->state);
10937 return 0;
10938
10939 init_err_release:
10940 bnxt_unmap_bars(bp, pdev);
10941 pci_release_regions(pdev);
10942
10943 init_err_disable:
10944 pci_disable_device(pdev);
10945
10946 init_err:
10947 return rc;
10948 }
10949
10950 /* rtnl_lock held */
10951 static int bnxt_change_mac_addr(struct net_device *dev, void *p)
10952 {
10953 struct sockaddr *addr = p;
10954 struct bnxt *bp = netdev_priv(dev);
10955 int rc = 0;
10956
10957 if (!is_valid_ether_addr(addr->sa_data))
10958 return -EADDRNOTAVAIL;
10959
10960 if (ether_addr_equal(addr->sa_data, dev->dev_addr))
10961 return 0;
10962
10963 rc = bnxt_approve_mac(bp, addr->sa_data, true);
10964 if (rc)
10965 return rc;
10966
10967 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
10968 if (netif_running(dev)) {
10969 bnxt_close_nic(bp, false, false);
10970 rc = bnxt_open_nic(bp, false, false);
10971 }
10972
10973 return rc;
10974 }
10975
10976 /* rtnl_lock held */
10977 static int bnxt_change_mtu(struct net_device *dev, int new_mtu)
10978 {
10979 struct bnxt *bp = netdev_priv(dev);
10980
10981 if (netif_running(dev))
10982 bnxt_close_nic(bp, true, false);
10983
10984 dev->mtu = new_mtu;
10985 bnxt_set_ring_params(bp);
10986
10987 if (netif_running(dev))
10988 return bnxt_open_nic(bp, true, false);
10989
10990 return 0;
10991 }
10992
10993 int bnxt_setup_mq_tc(struct net_device *dev, u8 tc)
10994 {
10995 struct bnxt *bp = netdev_priv(dev);
10996 bool sh = false;
10997 int rc;
10998
10999 if (tc > bp->max_tc) {
11000 netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n",
11001 tc, bp->max_tc);
11002 return -EINVAL;
11003 }
11004
11005 if (netdev_get_num_tc(dev) == tc)
11006 return 0;
11007
11008 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
11009 sh = true;
11010
11011 rc = bnxt_check_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
11012 sh, tc, bp->tx_nr_rings_xdp);
11013 if (rc)
11014 return rc;
11015
11016 /* Needs to close the device and do hw resource re-allocations */
11017 if (netif_running(bp->dev))
11018 bnxt_close_nic(bp, true, false);
11019
11020 if (tc) {
11021 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc;
11022 netdev_set_num_tc(dev, tc);
11023 } else {
11024 bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
11025 netdev_reset_tc(dev);
11026 }
11027 bp->tx_nr_rings += bp->tx_nr_rings_xdp;
11028 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
11029 bp->tx_nr_rings + bp->rx_nr_rings;
11030
11031 if (netif_running(bp->dev))
11032 return bnxt_open_nic(bp, true, false);
11033
11034 return 0;
11035 }
11036
11037 static int bnxt_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
11038 void *cb_priv)
11039 {
11040 struct bnxt *bp = cb_priv;
11041
11042 if (!bnxt_tc_flower_enabled(bp) ||
11043 !tc_cls_can_offload_and_chain0(bp->dev, type_data))
11044 return -EOPNOTSUPP;
11045
11046 switch (type) {
11047 case TC_SETUP_CLSFLOWER:
11048 return bnxt_tc_setup_flower(bp, bp->pf.fw_fid, type_data);
11049 default:
11050 return -EOPNOTSUPP;
11051 }
11052 }
11053
11054 LIST_HEAD(bnxt_block_cb_list);
11055
11056 static int bnxt_setup_tc(struct net_device *dev, enum tc_setup_type type,
11057 void *type_data)
11058 {
11059 struct bnxt *bp = netdev_priv(dev);
11060
11061 switch (type) {
11062 case TC_SETUP_BLOCK:
11063 return flow_block_cb_setup_simple(type_data,
11064 &bnxt_block_cb_list,
11065 bnxt_setup_tc_block_cb,
11066 bp, bp, true);
11067 case TC_SETUP_QDISC_MQPRIO: {
11068 struct tc_mqprio_qopt *mqprio = type_data;
11069
11070 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
11071
11072 return bnxt_setup_mq_tc(dev, mqprio->num_tc);
11073 }
11074 default:
11075 return -EOPNOTSUPP;
11076 }
11077 }
11078
11079 #ifdef CONFIG_RFS_ACCEL
11080 static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
11081 struct bnxt_ntuple_filter *f2)
11082 {
11083 struct flow_keys *keys1 = &f1->fkeys;
11084 struct flow_keys *keys2 = &f2->fkeys;
11085
11086 if (keys1->basic.n_proto != keys2->basic.n_proto ||
11087 keys1->basic.ip_proto != keys2->basic.ip_proto)
11088 return false;
11089
11090 if (keys1->basic.n_proto == htons(ETH_P_IP)) {
11091 if (keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src ||
11092 keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst)
11093 return false;
11094 } else {
11095 if (memcmp(&keys1->addrs.v6addrs.src, &keys2->addrs.v6addrs.src,
11096 sizeof(keys1->addrs.v6addrs.src)) ||
11097 memcmp(&keys1->addrs.v6addrs.dst, &keys2->addrs.v6addrs.dst,
11098 sizeof(keys1->addrs.v6addrs.dst)))
11099 return false;
11100 }
11101
11102 if (keys1->ports.ports == keys2->ports.ports &&
11103 keys1->control.flags == keys2->control.flags &&
11104 ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) &&
11105 ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr))
11106 return true;
11107
11108 return false;
11109 }
11110
11111 static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
11112 u16 rxq_index, u32 flow_id)
11113 {
11114 struct bnxt *bp = netdev_priv(dev);
11115 struct bnxt_ntuple_filter *fltr, *new_fltr;
11116 struct flow_keys *fkeys;
11117 struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb);
11118 int rc = 0, idx, bit_id, l2_idx = 0;
11119 struct hlist_head *head;
11120 u32 flags;
11121
11122 if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) {
11123 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
11124 int off = 0, j;
11125
11126 netif_addr_lock_bh(dev);
11127 for (j = 0; j < vnic->uc_filter_count; j++, off += ETH_ALEN) {
11128 if (ether_addr_equal(eth->h_dest,
11129 vnic->uc_list + off)) {
11130 l2_idx = j + 1;
11131 break;
11132 }
11133 }
11134 netif_addr_unlock_bh(dev);
11135 if (!l2_idx)
11136 return -EINVAL;
11137 }
11138 new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC);
11139 if (!new_fltr)
11140 return -ENOMEM;
11141
11142 fkeys = &new_fltr->fkeys;
11143 if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) {
11144 rc = -EPROTONOSUPPORT;
11145 goto err_free;
11146 }
11147
11148 if ((fkeys->basic.n_proto != htons(ETH_P_IP) &&
11149 fkeys->basic.n_proto != htons(ETH_P_IPV6)) ||
11150 ((fkeys->basic.ip_proto != IPPROTO_TCP) &&
11151 (fkeys->basic.ip_proto != IPPROTO_UDP))) {
11152 rc = -EPROTONOSUPPORT;
11153 goto err_free;
11154 }
11155 if (fkeys->basic.n_proto == htons(ETH_P_IPV6) &&
11156 bp->hwrm_spec_code < 0x10601) {
11157 rc = -EPROTONOSUPPORT;
11158 goto err_free;
11159 }
11160 flags = fkeys->control.flags;
11161 if (((flags & FLOW_DIS_ENCAPSULATION) &&
11162 bp->hwrm_spec_code < 0x10601) || (flags & FLOW_DIS_IS_FRAGMENT)) {
11163 rc = -EPROTONOSUPPORT;
11164 goto err_free;
11165 }
11166
11167 memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN);
11168 memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN);
11169
11170 idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK;
11171 head = &bp->ntp_fltr_hash_tbl[idx];
11172 rcu_read_lock();
11173 hlist_for_each_entry_rcu(fltr, head, hash) {
11174 if (bnxt_fltr_match(fltr, new_fltr)) {
11175 rcu_read_unlock();
11176 rc = 0;
11177 goto err_free;
11178 }
11179 }
11180 rcu_read_unlock();
11181
11182 spin_lock_bh(&bp->ntp_fltr_lock);
11183 bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap,
11184 BNXT_NTP_FLTR_MAX_FLTR, 0);
11185 if (bit_id < 0) {
11186 spin_unlock_bh(&bp->ntp_fltr_lock);
11187 rc = -ENOMEM;
11188 goto err_free;
11189 }
11190
11191 new_fltr->sw_id = (u16)bit_id;
11192 new_fltr->flow_id = flow_id;
11193 new_fltr->l2_fltr_idx = l2_idx;
11194 new_fltr->rxq = rxq_index;
11195 hlist_add_head_rcu(&new_fltr->hash, head);
11196 bp->ntp_fltr_count++;
11197 spin_unlock_bh(&bp->ntp_fltr_lock);
11198
11199 set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
11200 bnxt_queue_sp_work(bp);
11201
11202 return new_fltr->sw_id;
11203
11204 err_free:
11205 kfree(new_fltr);
11206 return rc;
11207 }
11208
11209 static void bnxt_cfg_ntp_filters(struct bnxt *bp)
11210 {
11211 int i;
11212
11213 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
11214 struct hlist_head *head;
11215 struct hlist_node *tmp;
11216 struct bnxt_ntuple_filter *fltr;
11217 int rc;
11218
11219 head = &bp->ntp_fltr_hash_tbl[i];
11220 hlist_for_each_entry_safe(fltr, tmp, head, hash) {
11221 bool del = false;
11222
11223 if (test_bit(BNXT_FLTR_VALID, &fltr->state)) {
11224 if (rps_may_expire_flow(bp->dev, fltr->rxq,
11225 fltr->flow_id,
11226 fltr->sw_id)) {
11227 bnxt_hwrm_cfa_ntuple_filter_free(bp,
11228 fltr);
11229 del = true;
11230 }
11231 } else {
11232 rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp,
11233 fltr);
11234 if (rc)
11235 del = true;
11236 else
11237 set_bit(BNXT_FLTR_VALID, &fltr->state);
11238 }
11239
11240 if (del) {
11241 spin_lock_bh(&bp->ntp_fltr_lock);
11242 hlist_del_rcu(&fltr->hash);
11243 bp->ntp_fltr_count--;
11244 spin_unlock_bh(&bp->ntp_fltr_lock);
11245 synchronize_rcu();
11246 clear_bit(fltr->sw_id, bp->ntp_fltr_bmap);
11247 kfree(fltr);
11248 }
11249 }
11250 }
11251 if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event))
11252 netdev_info(bp->dev, "Receive PF driver unload event!\n");
11253 }
11254
11255 #else
11256
11257 static void bnxt_cfg_ntp_filters(struct bnxt *bp)
11258 {
11259 }
11260
11261 #endif /* CONFIG_RFS_ACCEL */
11262
11263 static void bnxt_udp_tunnel_add(struct net_device *dev,
11264 struct udp_tunnel_info *ti)
11265 {
11266 struct bnxt *bp = netdev_priv(dev);
11267
11268 if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET)
11269 return;
11270
11271 if (!netif_running(dev))
11272 return;
11273
11274 switch (ti->type) {
11275 case UDP_TUNNEL_TYPE_VXLAN:
11276 if (bp->vxlan_port_cnt && bp->vxlan_port != ti->port)
11277 return;
11278
11279 bp->vxlan_port_cnt++;
11280 if (bp->vxlan_port_cnt == 1) {
11281 bp->vxlan_port = ti->port;
11282 set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event);
11283 bnxt_queue_sp_work(bp);
11284 }
11285 break;
11286 case UDP_TUNNEL_TYPE_GENEVE:
11287 if (bp->nge_port_cnt && bp->nge_port != ti->port)
11288 return;
11289
11290 bp->nge_port_cnt++;
11291 if (bp->nge_port_cnt == 1) {
11292 bp->nge_port = ti->port;
11293 set_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event);
11294 }
11295 break;
11296 default:
11297 return;
11298 }
11299
11300 bnxt_queue_sp_work(bp);
11301 }
11302
11303 static void bnxt_udp_tunnel_del(struct net_device *dev,
11304 struct udp_tunnel_info *ti)
11305 {
11306 struct bnxt *bp = netdev_priv(dev);
11307
11308 if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET)
11309 return;
11310
11311 if (!netif_running(dev))
11312 return;
11313
11314 switch (ti->type) {
11315 case UDP_TUNNEL_TYPE_VXLAN:
11316 if (!bp->vxlan_port_cnt || bp->vxlan_port != ti->port)
11317 return;
11318 bp->vxlan_port_cnt--;
11319
11320 if (bp->vxlan_port_cnt != 0)
11321 return;
11322
11323 set_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event);
11324 break;
11325 case UDP_TUNNEL_TYPE_GENEVE:
11326 if (!bp->nge_port_cnt || bp->nge_port != ti->port)
11327 return;
11328 bp->nge_port_cnt--;
11329
11330 if (bp->nge_port_cnt != 0)
11331 return;
11332
11333 set_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event);
11334 break;
11335 default:
11336 return;
11337 }
11338
11339 bnxt_queue_sp_work(bp);
11340 }
11341
11342 static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
11343 struct net_device *dev, u32 filter_mask,
11344 int nlflags)
11345 {
11346 struct bnxt *bp = netdev_priv(dev);
11347
11348 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bp->br_mode, 0, 0,
11349 nlflags, filter_mask, NULL);
11350 }
11351
11352 static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
11353 u16 flags, struct netlink_ext_ack *extack)
11354 {
11355 struct bnxt *bp = netdev_priv(dev);
11356 struct nlattr *attr, *br_spec;
11357 int rem, rc = 0;
11358
11359 if (bp->hwrm_spec_code < 0x10708 || !BNXT_SINGLE_PF(bp))
11360 return -EOPNOTSUPP;
11361
11362 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
11363 if (!br_spec)
11364 return -EINVAL;
11365
11366 nla_for_each_nested(attr, br_spec, rem) {
11367 u16 mode;
11368
11369 if (nla_type(attr) != IFLA_BRIDGE_MODE)
11370 continue;
11371
11372 if (nla_len(attr) < sizeof(mode))
11373 return -EINVAL;
11374
11375 mode = nla_get_u16(attr);
11376 if (mode == bp->br_mode)
11377 break;
11378
11379 rc = bnxt_hwrm_set_br_mode(bp, mode);
11380 if (!rc)
11381 bp->br_mode = mode;
11382 break;
11383 }
11384 return rc;
11385 }
11386
11387 int bnxt_get_port_parent_id(struct net_device *dev,
11388 struct netdev_phys_item_id *ppid)
11389 {
11390 struct bnxt *bp = netdev_priv(dev);
11391
11392 if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)
11393 return -EOPNOTSUPP;
11394
11395 /* The PF and it's VF-reps only support the switchdev framework */
11396 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_DSN_VALID))
11397 return -EOPNOTSUPP;
11398
11399 ppid->id_len = sizeof(bp->dsn);
11400 memcpy(ppid->id, bp->dsn, ppid->id_len);
11401
11402 return 0;
11403 }
11404
11405 static struct devlink_port *bnxt_get_devlink_port(struct net_device *dev)
11406 {
11407 struct bnxt *bp = netdev_priv(dev);
11408
11409 return &bp->dl_port;
11410 }
11411
11412 static const struct net_device_ops bnxt_netdev_ops = {
11413 .ndo_open = bnxt_open,
11414 .ndo_start_xmit = bnxt_start_xmit,
11415 .ndo_stop = bnxt_close,
11416 .ndo_get_stats64 = bnxt_get_stats64,
11417 .ndo_set_rx_mode = bnxt_set_rx_mode,
11418 .ndo_do_ioctl = bnxt_ioctl,
11419 .ndo_validate_addr = eth_validate_addr,
11420 .ndo_set_mac_address = bnxt_change_mac_addr,
11421 .ndo_change_mtu = bnxt_change_mtu,
11422 .ndo_fix_features = bnxt_fix_features,
11423 .ndo_set_features = bnxt_set_features,
11424 .ndo_tx_timeout = bnxt_tx_timeout,
11425 #ifdef CONFIG_BNXT_SRIOV
11426 .ndo_get_vf_config = bnxt_get_vf_config,
11427 .ndo_set_vf_mac = bnxt_set_vf_mac,
11428 .ndo_set_vf_vlan = bnxt_set_vf_vlan,
11429 .ndo_set_vf_rate = bnxt_set_vf_bw,
11430 .ndo_set_vf_link_state = bnxt_set_vf_link_state,
11431 .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk,
11432 .ndo_set_vf_trust = bnxt_set_vf_trust,
11433 #endif
11434 .ndo_setup_tc = bnxt_setup_tc,
11435 #ifdef CONFIG_RFS_ACCEL
11436 .ndo_rx_flow_steer = bnxt_rx_flow_steer,
11437 #endif
11438 .ndo_udp_tunnel_add = bnxt_udp_tunnel_add,
11439 .ndo_udp_tunnel_del = bnxt_udp_tunnel_del,
11440 .ndo_bpf = bnxt_xdp,
11441 .ndo_xdp_xmit = bnxt_xdp_xmit,
11442 .ndo_bridge_getlink = bnxt_bridge_getlink,
11443 .ndo_bridge_setlink = bnxt_bridge_setlink,
11444 .ndo_get_devlink_port = bnxt_get_devlink_port,
11445 };
11446
11447 static void bnxt_remove_one(struct pci_dev *pdev)
11448 {
11449 struct net_device *dev = pci_get_drvdata(pdev);
11450 struct bnxt *bp = netdev_priv(dev);
11451
11452 if (BNXT_PF(bp))
11453 bnxt_sriov_disable(bp);
11454
11455 bnxt_dl_fw_reporters_destroy(bp, true);
11456 if (BNXT_PF(bp))
11457 devlink_port_type_clear(&bp->dl_port);
11458 pci_disable_pcie_error_reporting(pdev);
11459 unregister_netdev(dev);
11460 bnxt_dl_unregister(bp);
11461 bnxt_shutdown_tc(bp);
11462 bnxt_cancel_sp_work(bp);
11463 bp->sp_event = 0;
11464
11465 bnxt_clear_int_mode(bp);
11466 bnxt_hwrm_func_drv_unrgtr(bp);
11467 bnxt_free_hwrm_resources(bp);
11468 bnxt_free_hwrm_short_cmd_req(bp);
11469 bnxt_ethtool_free(bp);
11470 bnxt_dcb_free(bp);
11471 kfree(bp->edev);
11472 bp->edev = NULL;
11473 kfree(bp->fw_health);
11474 bp->fw_health = NULL;
11475 bnxt_cleanup_pci(bp);
11476 bnxt_free_ctx_mem(bp);
11477 kfree(bp->ctx);
11478 bp->ctx = NULL;
11479 bnxt_free_port_stats(bp);
11480 free_netdev(dev);
11481 }
11482
11483 static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt)
11484 {
11485 int rc = 0;
11486 struct bnxt_link_info *link_info = &bp->link_info;
11487
11488 rc = bnxt_hwrm_phy_qcaps(bp);
11489 if (rc) {
11490 netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n",
11491 rc);
11492 return rc;
11493 }
11494 if (!fw_dflt)
11495 return 0;
11496
11497 rc = bnxt_update_link(bp, false);
11498 if (rc) {
11499 netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n",
11500 rc);
11501 return rc;
11502 }
11503
11504 /* Older firmware does not have supported_auto_speeds, so assume
11505 * that all supported speeds can be autonegotiated.
11506 */
11507 if (link_info->auto_link_speeds && !link_info->support_auto_speeds)
11508 link_info->support_auto_speeds = link_info->support_speeds;
11509
11510 bnxt_init_ethtool_link_settings(bp);
11511 return 0;
11512 }
11513
11514 static int bnxt_get_max_irq(struct pci_dev *pdev)
11515 {
11516 u16 ctrl;
11517
11518 if (!pdev->msix_cap)
11519 return 1;
11520
11521 pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
11522 return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
11523 }
11524
11525 static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx,
11526 int *max_cp)
11527 {
11528 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
11529 int max_ring_grps = 0, max_irq;
11530
11531 *max_tx = hw_resc->max_tx_rings;
11532 *max_rx = hw_resc->max_rx_rings;
11533 *max_cp = bnxt_get_max_func_cp_rings_for_en(bp);
11534 max_irq = min_t(int, bnxt_get_max_func_irqs(bp) -
11535 bnxt_get_ulp_msix_num(bp),
11536 hw_resc->max_stat_ctxs - bnxt_get_ulp_stat_ctxs(bp));
11537 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
11538 *max_cp = min_t(int, *max_cp, max_irq);
11539 max_ring_grps = hw_resc->max_hw_ring_grps;
11540 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) {
11541 *max_cp -= 1;
11542 *max_rx -= 2;
11543 }
11544 if (bp->flags & BNXT_FLAG_AGG_RINGS)
11545 *max_rx >>= 1;
11546 if (bp->flags & BNXT_FLAG_CHIP_P5) {
11547 bnxt_trim_rings(bp, max_rx, max_tx, *max_cp, false);
11548 /* On P5 chips, max_cp output param should be available NQs */
11549 *max_cp = max_irq;
11550 }
11551 *max_rx = min_t(int, *max_rx, max_ring_grps);
11552 }
11553
11554 int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared)
11555 {
11556 int rx, tx, cp;
11557
11558 _bnxt_get_max_rings(bp, &rx, &tx, &cp);
11559 *max_rx = rx;
11560 *max_tx = tx;
11561 if (!rx || !tx || !cp)
11562 return -ENOMEM;
11563
11564 return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared);
11565 }
11566
11567 static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx,
11568 bool shared)
11569 {
11570 int rc;
11571
11572 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared);
11573 if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) {
11574 /* Not enough rings, try disabling agg rings. */
11575 bp->flags &= ~BNXT_FLAG_AGG_RINGS;
11576 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared);
11577 if (rc) {
11578 /* set BNXT_FLAG_AGG_RINGS back for consistency */
11579 bp->flags |= BNXT_FLAG_AGG_RINGS;
11580 return rc;
11581 }
11582 bp->flags |= BNXT_FLAG_NO_AGG_RINGS;
11583 bp->dev->hw_features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW);
11584 bp->dev->features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW);
11585 bnxt_set_ring_params(bp);
11586 }
11587
11588 if (bp->flags & BNXT_FLAG_ROCE_CAP) {
11589 int max_cp, max_stat, max_irq;
11590
11591 /* Reserve minimum resources for RoCE */
11592 max_cp = bnxt_get_max_func_cp_rings(bp);
11593 max_stat = bnxt_get_max_func_stat_ctxs(bp);
11594 max_irq = bnxt_get_max_func_irqs(bp);
11595 if (max_cp <= BNXT_MIN_ROCE_CP_RINGS ||
11596 max_irq <= BNXT_MIN_ROCE_CP_RINGS ||
11597 max_stat <= BNXT_MIN_ROCE_STAT_CTXS)
11598 return 0;
11599
11600 max_cp -= BNXT_MIN_ROCE_CP_RINGS;
11601 max_irq -= BNXT_MIN_ROCE_CP_RINGS;
11602 max_stat -= BNXT_MIN_ROCE_STAT_CTXS;
11603 max_cp = min_t(int, max_cp, max_irq);
11604 max_cp = min_t(int, max_cp, max_stat);
11605 rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared);
11606 if (rc)
11607 rc = 0;
11608 }
11609 return rc;
11610 }
11611
11612 /* In initial default shared ring setting, each shared ring must have a
11613 * RX/TX ring pair.
11614 */
11615 static void bnxt_trim_dflt_sh_rings(struct bnxt *bp)
11616 {
11617 bp->cp_nr_rings = min_t(int, bp->tx_nr_rings_per_tc, bp->rx_nr_rings);
11618 bp->rx_nr_rings = bp->cp_nr_rings;
11619 bp->tx_nr_rings_per_tc = bp->cp_nr_rings;
11620 bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
11621 }
11622
11623 static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh)
11624 {
11625 int dflt_rings, max_rx_rings, max_tx_rings, rc;
11626
11627 if (!bnxt_can_reserve_rings(bp))
11628 return 0;
11629
11630 if (sh)
11631 bp->flags |= BNXT_FLAG_SHARED_RINGS;
11632 dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues();
11633 /* Reduce default rings on multi-port cards so that total default
11634 * rings do not exceed CPU count.
11635 */
11636 if (bp->port_count > 1) {
11637 int max_rings =
11638 max_t(int, num_online_cpus() / bp->port_count, 1);
11639
11640 dflt_rings = min_t(int, dflt_rings, max_rings);
11641 }
11642 rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh);
11643 if (rc)
11644 return rc;
11645 bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings);
11646 bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings);
11647 if (sh)
11648 bnxt_trim_dflt_sh_rings(bp);
11649 else
11650 bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings;
11651 bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
11652
11653 rc = __bnxt_reserve_rings(bp);
11654 if (rc)
11655 netdev_warn(bp->dev, "Unable to reserve tx rings\n");
11656 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
11657 if (sh)
11658 bnxt_trim_dflt_sh_rings(bp);
11659
11660 /* Rings may have been trimmed, re-reserve the trimmed rings. */
11661 if (bnxt_need_reserve_rings(bp)) {
11662 rc = __bnxt_reserve_rings(bp);
11663 if (rc)
11664 netdev_warn(bp->dev, "2nd rings reservation failed.\n");
11665 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
11666 }
11667 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
11668 bp->rx_nr_rings++;
11669 bp->cp_nr_rings++;
11670 }
11671 if (rc) {
11672 bp->tx_nr_rings = 0;
11673 bp->rx_nr_rings = 0;
11674 }
11675 return rc;
11676 }
11677
11678 static int bnxt_init_dflt_ring_mode(struct bnxt *bp)
11679 {
11680 int rc;
11681
11682 if (bp->tx_nr_rings)
11683 return 0;
11684
11685 bnxt_ulp_irq_stop(bp);
11686 bnxt_clear_int_mode(bp);
11687 rc = bnxt_set_dflt_rings(bp, true);
11688 if (rc) {
11689 netdev_err(bp->dev, "Not enough rings available.\n");
11690 goto init_dflt_ring_err;
11691 }
11692 rc = bnxt_init_int_mode(bp);
11693 if (rc)
11694 goto init_dflt_ring_err;
11695
11696 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
11697 if (bnxt_rfs_supported(bp) && bnxt_rfs_capable(bp)) {
11698 bp->flags |= BNXT_FLAG_RFS;
11699 bp->dev->features |= NETIF_F_NTUPLE;
11700 }
11701 init_dflt_ring_err:
11702 bnxt_ulp_irq_restart(bp, rc);
11703 return rc;
11704 }
11705
11706 int bnxt_restore_pf_fw_resources(struct bnxt *bp)
11707 {
11708 int rc;
11709
11710 ASSERT_RTNL();
11711 bnxt_hwrm_func_qcaps(bp);
11712
11713 if (netif_running(bp->dev))
11714 __bnxt_close_nic(bp, true, false);
11715
11716 bnxt_ulp_irq_stop(bp);
11717 bnxt_clear_int_mode(bp);
11718 rc = bnxt_init_int_mode(bp);
11719 bnxt_ulp_irq_restart(bp, rc);
11720
11721 if (netif_running(bp->dev)) {
11722 if (rc)
11723 dev_close(bp->dev);
11724 else
11725 rc = bnxt_open_nic(bp, true, false);
11726 }
11727
11728 return rc;
11729 }
11730
11731 static int bnxt_init_mac_addr(struct bnxt *bp)
11732 {
11733 int rc = 0;
11734
11735 if (BNXT_PF(bp)) {
11736 memcpy(bp->dev->dev_addr, bp->pf.mac_addr, ETH_ALEN);
11737 } else {
11738 #ifdef CONFIG_BNXT_SRIOV
11739 struct bnxt_vf_info *vf = &bp->vf;
11740 bool strict_approval = true;
11741
11742 if (is_valid_ether_addr(vf->mac_addr)) {
11743 /* overwrite netdev dev_addr with admin VF MAC */
11744 memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN);
11745 /* Older PF driver or firmware may not approve this
11746 * correctly.
11747 */
11748 strict_approval = false;
11749 } else {
11750 eth_hw_addr_random(bp->dev);
11751 }
11752 rc = bnxt_approve_mac(bp, bp->dev->dev_addr, strict_approval);
11753 #endif
11754 }
11755 return rc;
11756 }
11757
11758 #define BNXT_VPD_LEN 512
11759 static void bnxt_vpd_read_info(struct bnxt *bp)
11760 {
11761 struct pci_dev *pdev = bp->pdev;
11762 int i, len, pos, ro_size;
11763 ssize_t vpd_size;
11764 u8 *vpd_data;
11765
11766 vpd_data = kmalloc(BNXT_VPD_LEN, GFP_KERNEL);
11767 if (!vpd_data)
11768 return;
11769
11770 vpd_size = pci_read_vpd(pdev, 0, BNXT_VPD_LEN, vpd_data);
11771 if (vpd_size <= 0) {
11772 netdev_err(bp->dev, "Unable to read VPD\n");
11773 goto exit;
11774 }
11775
11776 i = pci_vpd_find_tag(vpd_data, 0, vpd_size, PCI_VPD_LRDT_RO_DATA);
11777 if (i < 0) {
11778 netdev_err(bp->dev, "VPD READ-Only not found\n");
11779 goto exit;
11780 }
11781
11782 ro_size = pci_vpd_lrdt_size(&vpd_data[i]);
11783 i += PCI_VPD_LRDT_TAG_SIZE;
11784 if (i + ro_size > vpd_size)
11785 goto exit;
11786
11787 pos = pci_vpd_find_info_keyword(vpd_data, i, ro_size,
11788 PCI_VPD_RO_KEYWORD_PARTNO);
11789 if (pos < 0)
11790 goto read_sn;
11791
11792 len = pci_vpd_info_field_size(&vpd_data[pos]);
11793 pos += PCI_VPD_INFO_FLD_HDR_SIZE;
11794 if (len + pos > vpd_size)
11795 goto read_sn;
11796
11797 strlcpy(bp->board_partno, &vpd_data[pos], min(len, BNXT_VPD_FLD_LEN));
11798
11799 read_sn:
11800 pos = pci_vpd_find_info_keyword(vpd_data, i, ro_size,
11801 PCI_VPD_RO_KEYWORD_SERIALNO);
11802 if (pos < 0)
11803 goto exit;
11804
11805 len = pci_vpd_info_field_size(&vpd_data[pos]);
11806 pos += PCI_VPD_INFO_FLD_HDR_SIZE;
11807 if (len + pos > vpd_size)
11808 goto exit;
11809
11810 strlcpy(bp->board_serialno, &vpd_data[pos], min(len, BNXT_VPD_FLD_LEN));
11811 exit:
11812 kfree(vpd_data);
11813 }
11814
11815 static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[])
11816 {
11817 struct pci_dev *pdev = bp->pdev;
11818 u64 qword;
11819
11820 qword = pci_get_dsn(pdev);
11821 if (!qword) {
11822 netdev_info(bp->dev, "Unable to read adapter's DSN\n");
11823 return -EOPNOTSUPP;
11824 }
11825
11826 put_unaligned_le64(qword, dsn);
11827
11828 bp->flags |= BNXT_FLAG_DSN_VALID;
11829 return 0;
11830 }
11831
11832 static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
11833 {
11834 struct net_device *dev;
11835 struct bnxt *bp;
11836 int rc, max_irqs;
11837
11838 if (pci_is_bridge(pdev))
11839 return -ENODEV;
11840
11841 /* Clear any pending DMA transactions from crash kernel
11842 * while loading driver in capture kernel.
11843 */
11844 if (is_kdump_kernel()) {
11845 pci_clear_master(pdev);
11846 pcie_flr(pdev);
11847 }
11848
11849 max_irqs = bnxt_get_max_irq(pdev);
11850 dev = alloc_etherdev_mq(sizeof(*bp), max_irqs);
11851 if (!dev)
11852 return -ENOMEM;
11853
11854 bp = netdev_priv(dev);
11855 bnxt_set_max_func_irqs(bp, max_irqs);
11856
11857 if (bnxt_vf_pciid(ent->driver_data))
11858 bp->flags |= BNXT_FLAG_VF;
11859
11860 if (pdev->msix_cap)
11861 bp->flags |= BNXT_FLAG_MSIX_CAP;
11862
11863 rc = bnxt_init_board(pdev, dev);
11864 if (rc < 0)
11865 goto init_err_free;
11866
11867 dev->netdev_ops = &bnxt_netdev_ops;
11868 dev->watchdog_timeo = BNXT_TX_TIMEOUT;
11869 dev->ethtool_ops = &bnxt_ethtool_ops;
11870 pci_set_drvdata(pdev, dev);
11871
11872 bnxt_vpd_read_info(bp);
11873
11874 rc = bnxt_alloc_hwrm_resources(bp);
11875 if (rc)
11876 goto init_err_pci_clean;
11877
11878 mutex_init(&bp->hwrm_cmd_lock);
11879 mutex_init(&bp->link_lock);
11880
11881 rc = bnxt_fw_init_one_p1(bp);
11882 if (rc)
11883 goto init_err_pci_clean;
11884
11885 if (BNXT_CHIP_P5(bp))
11886 bp->flags |= BNXT_FLAG_CHIP_P5;
11887
11888 rc = bnxt_fw_init_one_p2(bp);
11889 if (rc)
11890 goto init_err_pci_clean;
11891
11892 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
11893 NETIF_F_TSO | NETIF_F_TSO6 |
11894 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
11895 NETIF_F_GSO_IPXIP4 |
11896 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
11897 NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH |
11898 NETIF_F_RXCSUM | NETIF_F_GRO;
11899
11900 if (BNXT_SUPPORTS_TPA(bp))
11901 dev->hw_features |= NETIF_F_LRO;
11902
11903 dev->hw_enc_features =
11904 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
11905 NETIF_F_TSO | NETIF_F_TSO6 |
11906 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
11907 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
11908 NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL;
11909 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM |
11910 NETIF_F_GSO_GRE_CSUM;
11911 dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA;
11912 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX |
11913 NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX;
11914 if (BNXT_SUPPORTS_TPA(bp))
11915 dev->hw_features |= NETIF_F_GRO_HW;
11916 dev->features |= dev->hw_features | NETIF_F_HIGHDMA;
11917 if (dev->features & NETIF_F_GRO_HW)
11918 dev->features &= ~NETIF_F_LRO;
11919 dev->priv_flags |= IFF_UNICAST_FLT;
11920
11921 #ifdef CONFIG_BNXT_SRIOV
11922 init_waitqueue_head(&bp->sriov_cfg_wait);
11923 mutex_init(&bp->sriov_lock);
11924 #endif
11925 if (BNXT_SUPPORTS_TPA(bp)) {
11926 bp->gro_func = bnxt_gro_func_5730x;
11927 if (BNXT_CHIP_P4(bp))
11928 bp->gro_func = bnxt_gro_func_5731x;
11929 else if (BNXT_CHIP_P5(bp))
11930 bp->gro_func = bnxt_gro_func_5750x;
11931 }
11932 if (!BNXT_CHIP_P4_PLUS(bp))
11933 bp->flags |= BNXT_FLAG_DOUBLE_DB;
11934
11935 bp->ulp_probe = bnxt_ulp_probe;
11936
11937 rc = bnxt_init_mac_addr(bp);
11938 if (rc) {
11939 dev_err(&pdev->dev, "Unable to initialize mac address.\n");
11940 rc = -EADDRNOTAVAIL;
11941 goto init_err_pci_clean;
11942 }
11943
11944 if (BNXT_PF(bp)) {
11945 /* Read the adapter's DSN to use as the eswitch switch_id */
11946 rc = bnxt_pcie_dsn_get(bp, bp->dsn);
11947 }
11948
11949 /* MTU range: 60 - FW defined max */
11950 dev->min_mtu = ETH_ZLEN;
11951 dev->max_mtu = bp->max_mtu;
11952
11953 rc = bnxt_probe_phy(bp, true);
11954 if (rc)
11955 goto init_err_pci_clean;
11956
11957 bnxt_set_rx_skb_mode(bp, false);
11958 bnxt_set_tpa_flags(bp);
11959 bnxt_set_ring_params(bp);
11960 rc = bnxt_set_dflt_rings(bp, true);
11961 if (rc) {
11962 netdev_err(bp->dev, "Not enough rings available.\n");
11963 rc = -ENOMEM;
11964 goto init_err_pci_clean;
11965 }
11966
11967 bnxt_fw_init_one_p3(bp);
11968
11969 if (dev->hw_features & NETIF_F_HW_VLAN_CTAG_RX)
11970 bp->flags |= BNXT_FLAG_STRIP_VLAN;
11971
11972 rc = bnxt_init_int_mode(bp);
11973 if (rc)
11974 goto init_err_pci_clean;
11975
11976 /* No TC has been set yet and rings may have been trimmed due to
11977 * limited MSIX, so we re-initialize the TX rings per TC.
11978 */
11979 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
11980
11981 if (BNXT_PF(bp)) {
11982 if (!bnxt_pf_wq) {
11983 bnxt_pf_wq =
11984 create_singlethread_workqueue("bnxt_pf_wq");
11985 if (!bnxt_pf_wq) {
11986 dev_err(&pdev->dev, "Unable to create workqueue.\n");
11987 goto init_err_pci_clean;
11988 }
11989 }
11990 bnxt_init_tc(bp);
11991 }
11992
11993 bnxt_dl_register(bp);
11994
11995 rc = register_netdev(dev);
11996 if (rc)
11997 goto init_err_cleanup;
11998
11999 if (BNXT_PF(bp))
12000 devlink_port_type_eth_set(&bp->dl_port, bp->dev);
12001 bnxt_dl_fw_reporters_create(bp);
12002
12003 netdev_info(dev, "%s found at mem %lx, node addr %pM\n",
12004 board_info[ent->driver_data].name,
12005 (long)pci_resource_start(pdev, 0), dev->dev_addr);
12006 pcie_print_link_status(pdev);
12007
12008 return 0;
12009
12010 init_err_cleanup:
12011 bnxt_dl_unregister(bp);
12012 bnxt_shutdown_tc(bp);
12013 bnxt_clear_int_mode(bp);
12014
12015 init_err_pci_clean:
12016 bnxt_hwrm_func_drv_unrgtr(bp);
12017 bnxt_free_hwrm_short_cmd_req(bp);
12018 bnxt_free_hwrm_resources(bp);
12019 kfree(bp->fw_health);
12020 bp->fw_health = NULL;
12021 bnxt_cleanup_pci(bp);
12022 bnxt_free_ctx_mem(bp);
12023 kfree(bp->ctx);
12024 bp->ctx = NULL;
12025
12026 init_err_free:
12027 free_netdev(dev);
12028 return rc;
12029 }
12030
12031 static void bnxt_shutdown(struct pci_dev *pdev)
12032 {
12033 struct net_device *dev = pci_get_drvdata(pdev);
12034 struct bnxt *bp;
12035
12036 if (!dev)
12037 return;
12038
12039 rtnl_lock();
12040 bp = netdev_priv(dev);
12041 if (!bp)
12042 goto shutdown_exit;
12043
12044 if (netif_running(dev))
12045 dev_close(dev);
12046
12047 bnxt_ulp_shutdown(bp);
12048 bnxt_clear_int_mode(bp);
12049 pci_disable_device(pdev);
12050
12051 if (system_state == SYSTEM_POWER_OFF) {
12052 pci_wake_from_d3(pdev, bp->wol);
12053 pci_set_power_state(pdev, PCI_D3hot);
12054 }
12055
12056 shutdown_exit:
12057 rtnl_unlock();
12058 }
12059
12060 #ifdef CONFIG_PM_SLEEP
12061 static int bnxt_suspend(struct device *device)
12062 {
12063 struct net_device *dev = dev_get_drvdata(device);
12064 struct bnxt *bp = netdev_priv(dev);
12065 int rc = 0;
12066
12067 rtnl_lock();
12068 bnxt_ulp_stop(bp);
12069 if (netif_running(dev)) {
12070 netif_device_detach(dev);
12071 rc = bnxt_close(dev);
12072 }
12073 bnxt_hwrm_func_drv_unrgtr(bp);
12074 pci_disable_device(bp->pdev);
12075 bnxt_free_ctx_mem(bp);
12076 kfree(bp->ctx);
12077 bp->ctx = NULL;
12078 rtnl_unlock();
12079 return rc;
12080 }
12081
12082 static int bnxt_resume(struct device *device)
12083 {
12084 struct net_device *dev = dev_get_drvdata(device);
12085 struct bnxt *bp = netdev_priv(dev);
12086 int rc = 0;
12087
12088 rtnl_lock();
12089 rc = pci_enable_device(bp->pdev);
12090 if (rc) {
12091 netdev_err(dev, "Cannot re-enable PCI device during resume, err = %d\n",
12092 rc);
12093 goto resume_exit;
12094 }
12095 pci_set_master(bp->pdev);
12096 if (bnxt_hwrm_ver_get(bp)) {
12097 rc = -ENODEV;
12098 goto resume_exit;
12099 }
12100 rc = bnxt_hwrm_func_reset(bp);
12101 if (rc) {
12102 rc = -EBUSY;
12103 goto resume_exit;
12104 }
12105
12106 if (bnxt_hwrm_queue_qportcfg(bp)) {
12107 rc = -ENODEV;
12108 goto resume_exit;
12109 }
12110
12111 if (bp->hwrm_spec_code >= 0x10803) {
12112 if (bnxt_alloc_ctx_mem(bp)) {
12113 rc = -ENODEV;
12114 goto resume_exit;
12115 }
12116 }
12117 if (BNXT_NEW_RM(bp))
12118 bnxt_hwrm_func_resc_qcaps(bp, false);
12119
12120 if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) {
12121 rc = -ENODEV;
12122 goto resume_exit;
12123 }
12124
12125 bnxt_get_wol_settings(bp);
12126 if (netif_running(dev)) {
12127 rc = bnxt_open(dev);
12128 if (!rc)
12129 netif_device_attach(dev);
12130 }
12131
12132 resume_exit:
12133 bnxt_ulp_start(bp, rc);
12134 rtnl_unlock();
12135 return rc;
12136 }
12137
12138 static SIMPLE_DEV_PM_OPS(bnxt_pm_ops, bnxt_suspend, bnxt_resume);
12139 #define BNXT_PM_OPS (&bnxt_pm_ops)
12140
12141 #else
12142
12143 #define BNXT_PM_OPS NULL
12144
12145 #endif /* CONFIG_PM_SLEEP */
12146
12147 /**
12148 * bnxt_io_error_detected - called when PCI error is detected
12149 * @pdev: Pointer to PCI device
12150 * @state: The current pci connection state
12151 *
12152 * This function is called after a PCI bus error affecting
12153 * this device has been detected.
12154 */
12155 static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
12156 pci_channel_state_t state)
12157 {
12158 struct net_device *netdev = pci_get_drvdata(pdev);
12159 struct bnxt *bp = netdev_priv(netdev);
12160
12161 netdev_info(netdev, "PCI I/O error detected\n");
12162
12163 rtnl_lock();
12164 netif_device_detach(netdev);
12165
12166 bnxt_ulp_stop(bp);
12167
12168 if (state == pci_channel_io_perm_failure) {
12169 rtnl_unlock();
12170 return PCI_ERS_RESULT_DISCONNECT;
12171 }
12172
12173 if (netif_running(netdev))
12174 bnxt_close(netdev);
12175
12176 pci_disable_device(pdev);
12177 rtnl_unlock();
12178
12179 /* Request a slot slot reset. */
12180 return PCI_ERS_RESULT_NEED_RESET;
12181 }
12182
12183 /**
12184 * bnxt_io_slot_reset - called after the pci bus has been reset.
12185 * @pdev: Pointer to PCI device
12186 *
12187 * Restart the card from scratch, as if from a cold-boot.
12188 * At this point, the card has exprienced a hard reset,
12189 * followed by fixups by BIOS, and has its config space
12190 * set up identically to what it was at cold boot.
12191 */
12192 static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
12193 {
12194 struct net_device *netdev = pci_get_drvdata(pdev);
12195 struct bnxt *bp = netdev_priv(netdev);
12196 int err = 0;
12197 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
12198
12199 netdev_info(bp->dev, "PCI Slot Reset\n");
12200
12201 rtnl_lock();
12202
12203 if (pci_enable_device(pdev)) {
12204 dev_err(&pdev->dev,
12205 "Cannot re-enable PCI device after reset.\n");
12206 } else {
12207 pci_set_master(pdev);
12208
12209 err = bnxt_hwrm_func_reset(bp);
12210 if (!err && netif_running(netdev))
12211 err = bnxt_open(netdev);
12212
12213 if (!err)
12214 result = PCI_ERS_RESULT_RECOVERED;
12215 bnxt_ulp_start(bp, err);
12216 }
12217
12218 if (result != PCI_ERS_RESULT_RECOVERED) {
12219 if (netif_running(netdev))
12220 dev_close(netdev);
12221 pci_disable_device(pdev);
12222 }
12223
12224 rtnl_unlock();
12225
12226 return result;
12227 }
12228
12229 /**
12230 * bnxt_io_resume - called when traffic can start flowing again.
12231 * @pdev: Pointer to PCI device
12232 *
12233 * This callback is called when the error recovery driver tells
12234 * us that its OK to resume normal operation.
12235 */
12236 static void bnxt_io_resume(struct pci_dev *pdev)
12237 {
12238 struct net_device *netdev = pci_get_drvdata(pdev);
12239
12240 rtnl_lock();
12241
12242 netif_device_attach(netdev);
12243
12244 rtnl_unlock();
12245 }
12246
12247 static const struct pci_error_handlers bnxt_err_handler = {
12248 .error_detected = bnxt_io_error_detected,
12249 .slot_reset = bnxt_io_slot_reset,
12250 .resume = bnxt_io_resume
12251 };
12252
12253 static struct pci_driver bnxt_pci_driver = {
12254 .name = DRV_MODULE_NAME,
12255 .id_table = bnxt_pci_tbl,
12256 .probe = bnxt_init_one,
12257 .remove = bnxt_remove_one,
12258 .shutdown = bnxt_shutdown,
12259 .driver.pm = BNXT_PM_OPS,
12260 .err_handler = &bnxt_err_handler,
12261 #if defined(CONFIG_BNXT_SRIOV)
12262 .sriov_configure = bnxt_sriov_configure,
12263 #endif
12264 };
12265
12266 static int __init bnxt_init(void)
12267 {
12268 bnxt_debug_init();
12269 return pci_register_driver(&bnxt_pci_driver);
12270 }
12271
12272 static void __exit bnxt_exit(void)
12273 {
12274 pci_unregister_driver(&bnxt_pci_driver);
12275 if (bnxt_pf_wq)
12276 destroy_workqueue(bnxt_pf_wq);
12277 bnxt_debug_exit();
12278 }
12279
12280 module_init(bnxt_init);
12281 module_exit(bnxt_exit);
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