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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_sriov.c
CommitLineData
c0c050c5
MC		 1/* Broadcom NetXtreme-C/E network driver.
2 *
11f15ed3 3 * Copyright (c) 2014-2016 Broadcom Corporation
746df139 4 * Copyright (c) 2016-2018 Broadcom Limited
c0c050c5
MC		 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#include <linux/pci.h>
13#include <linux/netdevice.h>
14#include <linux/if_vlan.h>
15#include <linux/interrupt.h>
16#include <linux/etherdevice.h>
17#include "bnxt_hsi.h"
18#include "bnxt.h"
2f593846 19#include "bnxt_ulp.h"
c0c050c5 20#include "bnxt_sriov.h"
4ab0c6a8 21#include "bnxt_vfr.h"
c0c050c5
MC		 22#include "bnxt_ethtool.h"
23
24#ifdef CONFIG_BNXT_SRIOV
350a7149
EW		 25static int bnxt_hwrm_fwd_async_event_cmpl(struct bnxt *bp,
26 struct bnxt_vf_info *vf, u16 event_id)
27{
350a7149
EW		 28 struct hwrm_fwd_async_event_cmpl_input req = {0};
29 struct hwrm_async_event_cmpl *async_cmpl;
30 int rc = 0;
31
32 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FWD_ASYNC_EVENT_CMPL, -1, -1);
33 if (vf)
34 req.encap_async_event_target_id = cpu_to_le16(vf->fw_fid);
35 else
36 /* broadcast this async event to all VFs */
37 req.encap_async_event_target_id = cpu_to_le16(0xffff);
38 async_cmpl = (struct hwrm_async_event_cmpl *)req.encap_async_event_cmpl;
87c374de 39 async_cmpl->type = cpu_to_le16(ASYNC_EVENT_CMPL_TYPE_HWRM_ASYNC_EVENT);
350a7149
EW		 40 async_cmpl->event_id = cpu_to_le16(event_id);
41
a798302d
MC		 42 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
43 if (rc)
350a7149
EW		 44 netdev_err(bp->dev, "hwrm_fwd_async_event_cmpl failed. rc:%d\n",
45 rc);
350a7149
EW		 46 return rc;
47}
48
c0c050c5
MC		 49static int bnxt_vf_ndo_prep(struct bnxt *bp, int vf_id)
50{
caefe526 51 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
c0c050c5
MC		 52 netdev_err(bp->dev, "vf ndo called though PF is down\n");
53 return -EINVAL;
54 }
55 if (!bp->pf.active_vfs) {
56 netdev_err(bp->dev, "vf ndo called though sriov is disabled\n");
57 return -EINVAL;
58 }
78f30004 59 if (vf_id >= bp->pf.active_vfs) {
c0c050c5
MC		 60 netdev_err(bp->dev, "Invalid VF id %d\n", vf_id);
61 return -EINVAL;
62 }
63 return 0;
64}
65
66int bnxt_set_vf_spoofchk(struct net_device *dev, int vf_id, bool setting)
67{
68 struct hwrm_func_cfg_input req = {0};
69 struct bnxt *bp = netdev_priv(dev);
70 struct bnxt_vf_info *vf;
71 bool old_setting = false;
72 u32 func_flags;
73 int rc;
74
8eb992e8
MC		 75 if (bp->hwrm_spec_code < 0x10701)
76 return -ENOTSUPP;
77
c0c050c5
MC		 78 rc = bnxt_vf_ndo_prep(bp, vf_id);
79 if (rc)
80 return rc;
81
82 vf = &bp->pf.vf[vf_id];
83 if (vf->flags & BNXT_VF_SPOOFCHK)
84 old_setting = true;
85 if (old_setting == setting)
86 return 0;
87
c0c050c5 88 if (setting)
c71c4e49 89 func_flags = FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_ENABLE;
c0c050c5 90 else
c71c4e49 91 func_flags = FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_DISABLE;
c0c050c5
MC		 92 /*TODO: if the driver supports VLAN filter on guest VLAN,
93 * the spoof check should also include vlan anti-spoofing
94 */
95 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 96 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 97 req.flags = cpu_to_le32(func_flags);
98 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
99 if (!rc) {
c0c050c5
MC		 100 if (setting)
101 vf->flags |= BNXT_VF_SPOOFCHK;
102 else
103 vf->flags &= ~BNXT_VF_SPOOFCHK;
104 }
105 return rc;
106}
107
2a516444
MC		 108static int bnxt_hwrm_func_qcfg_flags(struct bnxt *bp, struct bnxt_vf_info *vf)
109{
110 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
111 struct hwrm_func_qcfg_input req = {0};
112 int rc;
113
114 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
115 req.fid = cpu_to_le16(vf->fw_fid);
116 mutex_lock(&bp->hwrm_cmd_lock);
117 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
118 if (rc) {
119 mutex_unlock(&bp->hwrm_cmd_lock);
d4f1420d 120 return rc;
2a516444
MC		 121 }
122 vf->func_qcfg_flags = le16_to_cpu(resp->flags);
123 mutex_unlock(&bp->hwrm_cmd_lock);
124 return 0;
125}
126
127static bool bnxt_is_trusted_vf(struct bnxt *bp, struct bnxt_vf_info *vf)
128{
129 if (!(bp->fw_cap & BNXT_FW_CAP_TRUSTED_VF))
130 return !!(vf->flags & BNXT_VF_TRUST);
131
132 bnxt_hwrm_func_qcfg_flags(bp, vf);
133 return !!(vf->func_qcfg_flags & FUNC_QCFG_RESP_FLAGS_TRUSTED_VF);
134}
135
136static int bnxt_hwrm_set_trusted_vf(struct bnxt *bp, struct bnxt_vf_info *vf)
137{
138 struct hwrm_func_cfg_input req = {0};
2a516444
MC		 139
140 if (!(bp->fw_cap & BNXT_FW_CAP_TRUSTED_VF))
141 return 0;
142
143 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
144 req.fid = cpu_to_le16(vf->fw_fid);
145 if (vf->flags & BNXT_VF_TRUST)
146 req.flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_ENABLE);
147 else
148 req.flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_DISABLE);
9f90445c 149 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
2a516444
MC		 150}
151
746df139
VV		 152int bnxt_set_vf_trust(struct net_device *dev, int vf_id, bool trusted)
153{
154 struct bnxt *bp = netdev_priv(dev);
155 struct bnxt_vf_info *vf;
156
157 if (bnxt_vf_ndo_prep(bp, vf_id))
158 return -EINVAL;
159
160 vf = &bp->pf.vf[vf_id];
161 if (trusted)
162 vf->flags |= BNXT_VF_TRUST;
163 else
164 vf->flags &= ~BNXT_VF_TRUST;
165
2a516444 166 bnxt_hwrm_set_trusted_vf(bp, vf);
746df139
VV		 167 return 0;
168}
169
c0c050c5
MC		 170int bnxt_get_vf_config(struct net_device *dev, int vf_id,
171 struct ifla_vf_info *ivi)
172{
173 struct bnxt *bp = netdev_priv(dev);
174 struct bnxt_vf_info *vf;
175 int rc;
176
177 rc = bnxt_vf_ndo_prep(bp, vf_id);
178 if (rc)
179 return rc;
180
181 ivi->vf = vf_id;
182 vf = &bp->pf.vf[vf_id];
183
91cdda40
VV		 184 if (is_valid_ether_addr(vf->mac_addr))
185 memcpy(&ivi->mac, vf->mac_addr, ETH_ALEN);
186 else
187 memcpy(&ivi->mac, vf->vf_mac_addr, ETH_ALEN);
c0c050c5
MC		 188 ivi->max_tx_rate = vf->max_tx_rate;
189 ivi->min_tx_rate = vf->min_tx_rate;
190 ivi->vlan = vf->vlan;
f0249056
MC		 191 if (vf->flags & BNXT_VF_QOS)
192 ivi->qos = vf->vlan >> VLAN_PRIO_SHIFT;
193 else
194 ivi->qos = 0;
195 ivi->spoofchk = !!(vf->flags & BNXT_VF_SPOOFCHK);
2a516444 196 ivi->trusted = bnxt_is_trusted_vf(bp, vf);
c0c050c5
MC		 197 if (!(vf->flags & BNXT_VF_LINK_FORCED))
198 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
199 else if (vf->flags & BNXT_VF_LINK_UP)
200 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
201 else
202 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
203
204 return 0;
205}
206
207int bnxt_set_vf_mac(struct net_device *dev, int vf_id, u8 *mac)
208{
209 struct hwrm_func_cfg_input req = {0};
210 struct bnxt *bp = netdev_priv(dev);
211 struct bnxt_vf_info *vf;
212 int rc;
213
214 rc = bnxt_vf_ndo_prep(bp, vf_id);
215 if (rc)
216 return rc;
217 /* reject bc or mc mac addr, zero mac addr means allow
218 * VF to use its own mac addr
219 */
220 if (is_multicast_ether_addr(mac)) {
221 netdev_err(dev, "Invalid VF ethernet address\n");
222 return -EINVAL;
223 }
224 vf = &bp->pf.vf[vf_id];
225
226 memcpy(vf->mac_addr, mac, ETH_ALEN);
227 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 228 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 229 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
230 memcpy(req.dflt_mac_addr, mac, ETH_ALEN);
231 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
232}
233
79aab093
MS		 234int bnxt_set_vf_vlan(struct net_device *dev, int vf_id, u16 vlan_id, u8 qos,
235 __be16 vlan_proto)
c0c050c5
MC		 236{
237 struct hwrm_func_cfg_input req = {0};
238 struct bnxt *bp = netdev_priv(dev);
239 struct bnxt_vf_info *vf;
240 u16 vlan_tag;
241 int rc;
242
cf6645f8
MC		 243 if (bp->hwrm_spec_code < 0x10201)
244 return -ENOTSUPP;
245
79aab093
MS		 246 if (vlan_proto != htons(ETH_P_8021Q))
247 return -EPROTONOSUPPORT;
248
c0c050c5
MC		 249 rc = bnxt_vf_ndo_prep(bp, vf_id);
250 if (rc)
251 return rc;
252
253 /* TODO: needed to implement proper handling of user priority,
254 * currently fail the command if there is valid priority
255 */
256 if (vlan_id > 4095 || qos)
257 return -EINVAL;
258
259 vf = &bp->pf.vf[vf_id];
260 vlan_tag = vlan_id;
261 if (vlan_tag == vf->vlan)
262 return 0;
263
264 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 265 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 266 req.dflt_vlan = cpu_to_le16(vlan_tag);
267 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_VLAN);
268 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
269 if (!rc)
270 vf->vlan = vlan_tag;
271 return rc;
272}
273
274int bnxt_set_vf_bw(struct net_device *dev, int vf_id, int min_tx_rate,
275 int max_tx_rate)
276{
277 struct hwrm_func_cfg_input req = {0};
278 struct bnxt *bp = netdev_priv(dev);
279 struct bnxt_vf_info *vf;
280 u32 pf_link_speed;
281 int rc;
282
283 rc = bnxt_vf_ndo_prep(bp, vf_id);
284 if (rc)
285 return rc;
286
287 vf = &bp->pf.vf[vf_id];
288 pf_link_speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
289 if (max_tx_rate > pf_link_speed) {
290 netdev_info(bp->dev, "max tx rate %d exceed PF link speed for VF %d\n",
291 max_tx_rate, vf_id);
292 return -EINVAL;
293 }
294
295 if (min_tx_rate > pf_link_speed || min_tx_rate > max_tx_rate) {
296 netdev_info(bp->dev, "min tx rate %d is invalid for VF %d\n",
297 min_tx_rate, vf_id);
298 return -EINVAL;
299 }
300 if (min_tx_rate == vf->min_tx_rate && max_tx_rate == vf->max_tx_rate)
301 return 0;
302 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 303 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 304 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MAX_BW);
305 req.max_bw = cpu_to_le32(max_tx_rate);
306 req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_MIN_BW);
307 req.min_bw = cpu_to_le32(min_tx_rate);
308 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
309 if (!rc) {
310 vf->min_tx_rate = min_tx_rate;
311 vf->max_tx_rate = max_tx_rate;
312 }
313 return rc;
314}
315
316int bnxt_set_vf_link_state(struct net_device *dev, int vf_id, int link)
317{
318 struct bnxt *bp = netdev_priv(dev);
319 struct bnxt_vf_info *vf;
320 int rc;
321
322 rc = bnxt_vf_ndo_prep(bp, vf_id);
323 if (rc)
324 return rc;
325
326 vf = &bp->pf.vf[vf_id];
327
328 vf->flags &= ~(BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED);
329 switch (link) {
330 case IFLA_VF_LINK_STATE_AUTO:
331 vf->flags |= BNXT_VF_LINK_UP;
332 break;
333 case IFLA_VF_LINK_STATE_DISABLE:
334 vf->flags |= BNXT_VF_LINK_FORCED;
335 break;
336 case IFLA_VF_LINK_STATE_ENABLE:
337 vf->flags |= BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED;
338 break;
339 default:
340 netdev_err(bp->dev, "Invalid link option\n");
341 rc = -EINVAL;
342 break;
343 }
350a7149
EW		 344 if (vf->flags & (BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED))
345 rc = bnxt_hwrm_fwd_async_event_cmpl(bp, vf,
87c374de 346 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE);
c0c050c5
MC		 347 return rc;
348}
349
350static int bnxt_set_vf_attr(struct bnxt *bp, int num_vfs)
351{
352 int i;
353 struct bnxt_vf_info *vf;
354
355 for (i = 0; i < num_vfs; i++) {
356 vf = &bp->pf.vf[i];
357 memset(vf, 0, sizeof(*vf));
c0c050c5
MC		 358 }
359 return 0;
360}
361
4bb6cdce 362static int bnxt_hwrm_func_vf_resource_free(struct bnxt *bp, int num_vfs)
c0c050c5
MC		 363{
364 int i, rc = 0;
365 struct bnxt_pf_info *pf = &bp->pf;
366 struct hwrm_func_vf_resc_free_input req = {0};
367
368 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESC_FREE, -1, -1);
369
370 mutex_lock(&bp->hwrm_cmd_lock);
4bb6cdce 371 for (i = pf->first_vf_id; i < pf->first_vf_id + num_vfs; i++) {
c0c050c5
MC		 372 req.vf_id = cpu_to_le16(i);
373 rc = _hwrm_send_message(bp, &req, sizeof(req),
374 HWRM_CMD_TIMEOUT);
375 if (rc)
376 break;
377 }
378 mutex_unlock(&bp->hwrm_cmd_lock);
379 return rc;
380}
381
382static void bnxt_free_vf_resources(struct bnxt *bp)
383{
384 struct pci_dev *pdev = bp->pdev;
385 int i;
386
387 kfree(bp->pf.vf_event_bmap);
388 bp->pf.vf_event_bmap = NULL;
389
390 for (i = 0; i < 4; i++) {
391 if (bp->pf.hwrm_cmd_req_addr[i]) {
392 dma_free_coherent(&pdev->dev, BNXT_PAGE_SIZE,
393 bp->pf.hwrm_cmd_req_addr[i],
394 bp->pf.hwrm_cmd_req_dma_addr[i]);
395 bp->pf.hwrm_cmd_req_addr[i] = NULL;
396 }
397 }
398
399 kfree(bp->pf.vf);
400 bp->pf.vf = NULL;
401}
402
403static int bnxt_alloc_vf_resources(struct bnxt *bp, int num_vfs)
404{
405 struct pci_dev *pdev = bp->pdev;
406 u32 nr_pages, size, i, j, k = 0;
407
408 bp->pf.vf = kcalloc(num_vfs, sizeof(struct bnxt_vf_info), GFP_KERNEL);
409 if (!bp->pf.vf)
410 return -ENOMEM;
411
412 bnxt_set_vf_attr(bp, num_vfs);
413
414 size = num_vfs * BNXT_HWRM_REQ_MAX_SIZE;
415 nr_pages = size / BNXT_PAGE_SIZE;
416 if (size & (BNXT_PAGE_SIZE - 1))
417 nr_pages++;
418
419 for (i = 0; i < nr_pages; i++) {
420 bp->pf.hwrm_cmd_req_addr[i] =
421 dma_alloc_coherent(&pdev->dev, BNXT_PAGE_SIZE,
422 &bp->pf.hwrm_cmd_req_dma_addr[i],
423 GFP_KERNEL);
424
425 if (!bp->pf.hwrm_cmd_req_addr[i])
426 return -ENOMEM;
427
428 for (j = 0; j < BNXT_HWRM_REQS_PER_PAGE && k < num_vfs; j++) {
429 struct bnxt_vf_info *vf = &bp->pf.vf[k];
430
431 vf->hwrm_cmd_req_addr = bp->pf.hwrm_cmd_req_addr[i] +
432 j * BNXT_HWRM_REQ_MAX_SIZE;
433 vf->hwrm_cmd_req_dma_addr =
434 bp->pf.hwrm_cmd_req_dma_addr[i] + j *
435 BNXT_HWRM_REQ_MAX_SIZE;
436 k++;
437 }
438 }
439
440 /* Max 128 VF's */
441 bp->pf.vf_event_bmap = kzalloc(16, GFP_KERNEL);
442 if (!bp->pf.vf_event_bmap)
443 return -ENOMEM;
444
445 bp->pf.hwrm_cmd_req_pages = nr_pages;
446 return 0;
447}
448
449static int bnxt_hwrm_func_buf_rgtr(struct bnxt *bp)
450{
451 struct hwrm_func_buf_rgtr_input req = {0};
452
453 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_BUF_RGTR, -1, -1);
454
455 req.req_buf_num_pages = cpu_to_le16(bp->pf.hwrm_cmd_req_pages);
456 req.req_buf_page_size = cpu_to_le16(BNXT_PAGE_SHIFT);
457 req.req_buf_len = cpu_to_le16(BNXT_HWRM_REQ_MAX_SIZE);
458 req.req_buf_page_addr0 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[0]);
459 req.req_buf_page_addr1 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[1]);
460 req.req_buf_page_addr2 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[2]);
461 req.req_buf_page_addr3 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[3]);
462
463 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
464}
465
2cd86968
VV		 466/* Caller holds bp->hwrm_cmd_lock mutex lock */
467static void __bnxt_set_vf_params(struct bnxt *bp, int vf_id)
468{
469 struct hwrm_func_cfg_input req = {0};
470 struct bnxt_vf_info *vf;
471
472 vf = &bp->pf.vf[vf_id];
473 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
474 req.fid = cpu_to_le16(vf->fw_fid);
2cd86968
VV		 475
476 if (is_valid_ether_addr(vf->mac_addr)) {
477 req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
478 memcpy(req.dflt_mac_addr, vf->mac_addr, ETH_ALEN);
479 }
480 if (vf->vlan) {
481 req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_VLAN);
482 req.dflt_vlan = cpu_to_le16(vf->vlan);
483 }
484 if (vf->max_tx_rate) {
485 req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_MAX_BW);
486 req.max_bw = cpu_to_le32(vf->max_tx_rate);
487#ifdef HAVE_IFLA_TX_RATE
488 req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_MIN_BW);
489 req.min_bw = cpu_to_le32(vf->min_tx_rate);
490#endif
491 }
492 if (vf->flags & BNXT_VF_TRUST)
493 req.flags |= cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_ENABLE);
494
495 _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
496}
497
4673d664
MC		 498/* Only called by PF to reserve resources for VFs, returns actual number of
499 * VFs configured, or < 0 on error.
500 */
2cd86968 501static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset)
4673d664
MC		 502{
503 struct hwrm_func_vf_resource_cfg_input req = {0};
504 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
505 u16 vf_tx_rings, vf_rx_rings, vf_cp_rings;
506 u16 vf_stat_ctx, vf_vnics, vf_ring_grps;
507 struct bnxt_pf_info *pf = &bp->pf;
bf82736d 508 int i, rc = 0, min = 1;
b16b6891 509 u16 vf_msix = 0;
1acefc9a 510 u16 vf_rss;
4673d664
MC		 511
512 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESOURCE_CFG, -1, -1);
513
b16b6891
MC		 514 if (bp->flags & BNXT_FLAG_CHIP_P5) {
515 vf_msix = hw_resc->max_nqs - bnxt_nq_rings_in_use(bp);
516 vf_ring_grps = 0;
517 } else {
518 vf_ring_grps = hw_resc->max_hw_ring_grps - bp->rx_nr_rings;
519 }
e916b081 520 vf_cp_rings = bnxt_get_avail_cp_rings_for_en(bp);
c027c6b4 521 vf_stat_ctx = bnxt_get_avail_stat_ctxs_for_en(bp);
4673d664
MC		 522 if (bp->flags & BNXT_FLAG_AGG_RINGS)
523 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings * 2;
524 else
525 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings;
4673d664
MC		 526 vf_tx_rings = hw_resc->max_tx_rings - bp->tx_nr_rings;
527 vf_vnics = hw_resc->max_vnics - bp->nr_vnics;
528 vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);
1acefc9a 529 vf_rss = hw_resc->max_rsscos_ctxs - bp->rsscos_nr_ctxs;
4673d664 530
86c3380d 531 req.min_rsscos_ctx = cpu_to_le16(BNXT_VF_MIN_RSS_CTX);
bf82736d
MC		 532 if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) {
533 min = 0;
534 req.min_rsscos_ctx = cpu_to_le16(min);
535 }
536 if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL ||
537 pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) {
538 req.min_cmpl_rings = cpu_to_le16(min);
539 req.min_tx_rings = cpu_to_le16(min);
540 req.min_rx_rings = cpu_to_le16(min);
541 req.min_l2_ctxs = cpu_to_le16(min);
542 req.min_vnics = cpu_to_le16(min);
543 req.min_stat_ctx = cpu_to_le16(min);
b16b6891
MC		 544 if (!(bp->flags & BNXT_FLAG_CHIP_P5))
545 req.min_hw_ring_grps = cpu_to_le16(min);
4673d664
MC		 546 } else {
547 vf_cp_rings /= num_vfs;
548 vf_tx_rings /= num_vfs;
549 vf_rx_rings /= num_vfs;
550 vf_vnics /= num_vfs;
551 vf_stat_ctx /= num_vfs;
552 vf_ring_grps /= num_vfs;
1acefc9a 553 vf_rss /= num_vfs;
4673d664
MC		 554
555 req.min_cmpl_rings = cpu_to_le16(vf_cp_rings);
556 req.min_tx_rings = cpu_to_le16(vf_tx_rings);
557 req.min_rx_rings = cpu_to_le16(vf_rx_rings);
86c3380d 558 req.min_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
4673d664
MC		 559 req.min_vnics = cpu_to_le16(vf_vnics);
560 req.min_stat_ctx = cpu_to_le16(vf_stat_ctx);
561 req.min_hw_ring_grps = cpu_to_le16(vf_ring_grps);
1acefc9a 562 req.min_rsscos_ctx = cpu_to_le16(vf_rss);
4673d664
MC		 563 }
564 req.max_cmpl_rings = cpu_to_le16(vf_cp_rings);
565 req.max_tx_rings = cpu_to_le16(vf_tx_rings);
566 req.max_rx_rings = cpu_to_le16(vf_rx_rings);
86c3380d 567 req.max_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
4673d664
MC		 568 req.max_vnics = cpu_to_le16(vf_vnics);
569 req.max_stat_ctx = cpu_to_le16(vf_stat_ctx);
570 req.max_hw_ring_grps = cpu_to_le16(vf_ring_grps);
1acefc9a 571 req.max_rsscos_ctx = cpu_to_le16(vf_rss);
b16b6891
MC		 572 if (bp->flags & BNXT_FLAG_CHIP_P5)
573 req.max_msix = cpu_to_le16(vf_msix / num_vfs);
4673d664
MC		 574
575 mutex_lock(&bp->hwrm_cmd_lock);
576 for (i = 0; i < num_vfs; i++) {
2cd86968
VV		 577 if (reset)
578 __bnxt_set_vf_params(bp, i);
579
4673d664
MC		 580 req.vf_id = cpu_to_le16(pf->first_vf_id + i);
581 rc = _hwrm_send_message(bp, &req, sizeof(req),
582 HWRM_CMD_TIMEOUT);
d4f1420d 583 if (rc)
4673d664 584 break;
4673d664
MC		 585 pf->active_vfs = i + 1;
586 pf->vf[i].fw_fid = pf->first_vf_id + i;
587 }
588 mutex_unlock(&bp->hwrm_cmd_lock);
589 if (pf->active_vfs) {
596f9d55 590 u16 n = pf->active_vfs;
4673d664 591
596f9d55
MC		 592 hw_resc->max_tx_rings -= le16_to_cpu(req.min_tx_rings) * n;
593 hw_resc->max_rx_rings -= le16_to_cpu(req.min_rx_rings) * n;
594 hw_resc->max_hw_ring_grps -= le16_to_cpu(req.min_hw_ring_grps) *
595 n;
596 hw_resc->max_cp_rings -= le16_to_cpu(req.min_cmpl_rings) * n;
1acefc9a 597 hw_resc->max_rsscos_ctxs -= le16_to_cpu(req.min_rsscos_ctx) * n;
596f9d55
MC		 598 hw_resc->max_stat_ctxs -= le16_to_cpu(req.min_stat_ctx) * n;
599 hw_resc->max_vnics -= le16_to_cpu(req.min_vnics) * n;
b16b6891
MC		 600 if (bp->flags & BNXT_FLAG_CHIP_P5)
601 hw_resc->max_irqs -= vf_msix * n;
4673d664
MC		 602
603 rc = pf->active_vfs;
604 }
605 return rc;
606}
607
608/* Only called by PF to reserve resources for VFs, returns actual number of
609 * VFs configured, or < 0 on error.
610 */
92268c32 611static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs)
c0c050c5
MC		 612{
613 u32 rc = 0, mtu, i;
614 u16 vf_tx_rings, vf_rx_rings, vf_cp_rings, vf_stat_ctx, vf_vnics;
6a4f2947 615 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
c0c050c5
MC		 616 struct hwrm_func_cfg_input req = {0};
617 struct bnxt_pf_info *pf = &bp->pf;
391be5c2 618 int total_vf_tx_rings = 0;
c027c6b4 619 u16 vf_ring_grps;
c0c050c5
MC		 620
621 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
622
623 /* Remaining rings are distributed equally amongs VF's for now */
e916b081 624 vf_cp_rings = bnxt_get_avail_cp_rings_for_en(bp) / num_vfs;
c027c6b4 625 vf_stat_ctx = bnxt_get_avail_stat_ctxs_for_en(bp) / num_vfs;
c0c050c5 626 if (bp->flags & BNXT_FLAG_AGG_RINGS)
6a4f2947 627 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings * 2) /
92268c32 628 num_vfs;
c0c050c5 629 else
6a4f2947
MC		 630 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings) /
631 num_vfs;
632 vf_ring_grps = (hw_resc->max_hw_ring_grps - bp->rx_nr_rings) / num_vfs;
633 vf_tx_rings = (hw_resc->max_tx_rings - bp->tx_nr_rings) / num_vfs;
634 vf_vnics = (hw_resc->max_vnics - bp->nr_vnics) / num_vfs;
8427af81 635 vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);
c0c050c5
MC		 636
637 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MTU |
638 FUNC_CFG_REQ_ENABLES_MRU |
639 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS |
640 FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS |
641 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
642 FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS |
643 FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS |
644 FUNC_CFG_REQ_ENABLES_NUM_L2_CTXS |
b72d4a68
MC		 645 FUNC_CFG_REQ_ENABLES_NUM_VNICS |
646 FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS);
c0c050c5
MC		 647
648 mtu = bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
649 req.mru = cpu_to_le16(mtu);
650 req.mtu = cpu_to_le16(mtu);
651
652 req.num_rsscos_ctxs = cpu_to_le16(1);
653 req.num_cmpl_rings = cpu_to_le16(vf_cp_rings);
654 req.num_tx_rings = cpu_to_le16(vf_tx_rings);
655 req.num_rx_rings = cpu_to_le16(vf_rx_rings);
b72d4a68 656 req.num_hw_ring_grps = cpu_to_le16(vf_ring_grps);
c0c050c5 657 req.num_l2_ctxs = cpu_to_le16(4);
c0c050c5
MC		 658
659 req.num_vnics = cpu_to_le16(vf_vnics);
660 /* FIXME spec currently uses 1 bit for stats ctx */
661 req.num_stat_ctxs = cpu_to_le16(vf_stat_ctx);
662
663 mutex_lock(&bp->hwrm_cmd_lock);
92268c32 664 for (i = 0; i < num_vfs; i++) {
391be5c2
MC		 665 int vf_tx_rsvd = vf_tx_rings;
666
c193554e 667 req.fid = cpu_to_le16(pf->first_vf_id + i);
c0c050c5
MC		 668 rc = _hwrm_send_message(bp, &req, sizeof(req),
669 HWRM_CMD_TIMEOUT);
670 if (rc)
671 break;
92268c32 672 pf->active_vfs = i + 1;
c193554e 673 pf->vf[i].fw_fid = le16_to_cpu(req.fid);
391be5c2
MC		 674 rc = __bnxt_hwrm_get_tx_rings(bp, pf->vf[i].fw_fid,
675 &vf_tx_rsvd);
676 if (rc)
677 break;
678 total_vf_tx_rings += vf_tx_rsvd;
c0c050c5
MC		 679 }
680 mutex_unlock(&bp->hwrm_cmd_lock);
4673d664 681 if (pf->active_vfs) {
6a4f2947
MC		 682 hw_resc->max_tx_rings -= total_vf_tx_rings;
683 hw_resc->max_rx_rings -= vf_rx_rings * num_vfs;
684 hw_resc->max_hw_ring_grps -= vf_ring_grps * num_vfs;
685 hw_resc->max_cp_rings -= vf_cp_rings * num_vfs;
686 hw_resc->max_rsscos_ctxs -= num_vfs;
687 hw_resc->max_stat_ctxs -= vf_stat_ctx * num_vfs;
688 hw_resc->max_vnics -= vf_vnics * num_vfs;
4673d664 689 rc = pf->active_vfs;
c0c050c5
MC		 690 }
691 return rc;
692}
693
2cd86968 694static int bnxt_func_cfg(struct bnxt *bp, int num_vfs, bool reset)
4673d664 695{
f1ca94de 696 if (BNXT_NEW_RM(bp))
2cd86968 697 return bnxt_hwrm_func_vf_resc_cfg(bp, num_vfs, reset);
4673d664
MC		 698 else
699 return bnxt_hwrm_func_cfg(bp, num_vfs);
700}
701
2cd86968 702int bnxt_cfg_hw_sriov(struct bnxt *bp, int *num_vfs, bool reset)
702d5011
MC		 703{
704 int rc;
705
91b9be48
VV		 706 /* Register buffers for VFs */
707 rc = bnxt_hwrm_func_buf_rgtr(bp);
708 if (rc)
709 return rc;
710
702d5011 711 /* Reserve resources for VFs */
2cd86968 712 rc = bnxt_func_cfg(bp, *num_vfs, reset);
702d5011
MC		 713 if (rc != *num_vfs) {
714 if (rc <= 0) {
715 netdev_warn(bp->dev, "Unable to reserve resources for SRIOV.\n");
716 *num_vfs = 0;
717 return rc;
718 }
719 netdev_warn(bp->dev, "Only able to reserve resources for %d VFs.\n",
720 rc);
721 *num_vfs = rc;
722 }
723
702d5011
MC		 724 bnxt_ulp_sriov_cfg(bp, *num_vfs);
725 return 0;
726}
727
c0c050c5
MC		 728static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)
729{
730 int rc = 0, vfs_supported;
731 int min_rx_rings, min_tx_rings, min_rss_ctxs;
6a4f2947 732 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
c0c050c5 733 int tx_ok = 0, rx_ok = 0, rss_ok = 0;
02157079 734 int avail_cp, avail_stat;
c0c050c5
MC		 735
736 /* Check if we can enable requested num of vf's. At a mininum
737 * we require 1 RX 1 TX rings for each VF. In this minimum conf
738 * features like TPA will not be available.
739 */
740 vfs_supported = *num_vfs;
741
e916b081 742 avail_cp = bnxt_get_avail_cp_rings_for_en(bp);
c027c6b4 743 avail_stat = bnxt_get_avail_stat_ctxs_for_en(bp);
02157079
MC		 744 avail_cp = min_t(int, avail_cp, avail_stat);
745
c0c050c5
MC		 746 while (vfs_supported) {
747 min_rx_rings = vfs_supported;
748 min_tx_rings = vfs_supported;
749 min_rss_ctxs = vfs_supported;
750
751 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
6a4f2947 752 if (hw_resc->max_rx_rings - bp->rx_nr_rings * 2 >=
c0c050c5
MC		 753 min_rx_rings)
754 rx_ok = 1;
755 } else {
6a4f2947 756 if (hw_resc->max_rx_rings - bp->rx_nr_rings >=
c0c050c5
MC		 757 min_rx_rings)
758 rx_ok = 1;
759 }
6a4f2947 760 if (hw_resc->max_vnics - bp->nr_vnics < min_rx_rings ||
02157079 761 avail_cp < min_rx_rings)
8427af81 762 rx_ok = 0;
c0c050c5 763
6a4f2947 764 if (hw_resc->max_tx_rings - bp->tx_nr_rings >= min_tx_rings &&
02157079 765 avail_cp >= min_tx_rings)
c0c050c5
MC		 766 tx_ok = 1;
767
6a4f2947
MC		 768 if (hw_resc->max_rsscos_ctxs - bp->rsscos_nr_ctxs >=
769 min_rss_ctxs)
c0c050c5
MC		 770 rss_ok = 1;
771
772 if (tx_ok && rx_ok && rss_ok)
773 break;
774
775 vfs_supported--;
776 }
777
778 if (!vfs_supported) {
779 netdev_err(bp->dev, "Cannot enable VF's as all resources are used by PF\n");
780 return -EINVAL;
781 }
782
783 if (vfs_supported != *num_vfs) {
784 netdev_info(bp->dev, "Requested VFs %d, can enable %d\n",
785 *num_vfs, vfs_supported);
786 *num_vfs = vfs_supported;
787 }
788
789 rc = bnxt_alloc_vf_resources(bp, *num_vfs);
790 if (rc)
791 goto err_out1;
792
2cd86968 793 rc = bnxt_cfg_hw_sriov(bp, num_vfs, false);
c0c050c5
MC		 794 if (rc)
795 goto err_out2;
796
797 rc = pci_enable_sriov(bp->pdev, *num_vfs);
798 if (rc)
799 goto err_out2;
800
801 return 0;
802
803err_out2:
804 /* Free the resources reserved for various VF's */
4bb6cdce 805 bnxt_hwrm_func_vf_resource_free(bp, *num_vfs);
c0c050c5
MC		 806
807err_out1:
808 bnxt_free_vf_resources(bp);
809
810 return rc;
811}
812
813void bnxt_sriov_disable(struct bnxt *bp)
814{
4bb6cdce 815 u16 num_vfs = pci_num_vf(bp->pdev);
c0c050c5 816
4bb6cdce
JH		 817 if (!num_vfs)
818 return;
c0c050c5 819
4ab0c6a8
SP		 820 /* synchronize VF and VF-rep create and destroy */
821 mutex_lock(&bp->sriov_lock);
822 bnxt_vf_reps_destroy(bp);
823
4bb6cdce 824 if (pci_vfs_assigned(bp->pdev)) {
19241368 825 bnxt_hwrm_fwd_async_event_cmpl(
87c374de 826 bp, NULL, ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD);
4bb6cdce
JH		 827 netdev_warn(bp->dev, "Unable to free %d VFs because some are assigned to VMs.\n",
828 num_vfs);
829 } else {
830 pci_disable_sriov(bp->pdev);
831 /* Free the HW resources reserved for various VF's */
832 bnxt_hwrm_func_vf_resource_free(bp, num_vfs);
833 }
4ab0c6a8 834 mutex_unlock(&bp->sriov_lock);
c0c050c5
MC		 835
836 bnxt_free_vf_resources(bp);
837
838 bp->pf.active_vfs = 0;
4a21b49b 839 /* Reclaim all resources for the PF. */
7b08f661
MC		 840 rtnl_lock();
841 bnxt_restore_pf_fw_resources(bp);
842 rtnl_unlock();
2f593846
MC		 843
844 bnxt_ulp_sriov_cfg(bp, 0);
c0c050c5
MC		 845}
846
847int bnxt_sriov_configure(struct pci_dev *pdev, int num_vfs)
848{
849 struct net_device *dev = pci_get_drvdata(pdev);
850 struct bnxt *bp = netdev_priv(dev);
851
852 if (!(bp->flags & BNXT_FLAG_USING_MSIX)) {
853 netdev_warn(dev, "Not allow SRIOV if the irq mode is not MSIX\n");
854 return 0;
855 }
856
857 rtnl_lock();
858 if (!netif_running(dev)) {
859 netdev_warn(dev, "Reject SRIOV config request since if is down!\n");
860 rtnl_unlock();
861 return 0;
862 }
3bc7d4a3
MC		 863 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
864 netdev_warn(dev, "Reject SRIOV config request when FW reset is in progress\n");
865 rtnl_unlock();
866 return 0;
867 }
c0c050c5
MC		 868 bp->sriov_cfg = true;
869 rtnl_unlock();
4bb6cdce
JH		 870
871 if (pci_vfs_assigned(bp->pdev)) {
872 netdev_warn(dev, "Unable to configure SRIOV since some VFs are assigned to VMs.\n");
873 num_vfs = 0;
874 goto sriov_cfg_exit;
c0c050c5
MC		 875 }
876
877 /* Check if enabled VFs is same as requested */
4bb6cdce
JH		 878 if (num_vfs && num_vfs == bp->pf.active_vfs)
879 goto sriov_cfg_exit;
880
881 /* if there are previous existing VFs, clean them up */
882 bnxt_sriov_disable(bp);
883 if (!num_vfs)
884 goto sriov_cfg_exit;
c0c050c5
MC		 885
886 bnxt_sriov_enable(bp, &num_vfs);
887
4bb6cdce 888sriov_cfg_exit:
c0c050c5
MC		 889 bp->sriov_cfg = false;
890 wake_up(&bp->sriov_cfg_wait);
891
892 return num_vfs;
893}
894
895static int bnxt_hwrm_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
896 void *encap_resp, __le64 encap_resp_addr,
897 __le16 encap_resp_cpr, u32 msg_size)
898{
899 int rc = 0;
900 struct hwrm_fwd_resp_input req = {0};
c0c050c5 901
59895f59
MC		 902 if (BNXT_FWD_RESP_SIZE_ERR(msg_size))
903 return -EINVAL;
904
c0c050c5
MC		 905 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FWD_RESP, -1, -1);
906
907 /* Set the new target id */
908 req.target_id = cpu_to_le16(vf->fw_fid);
c193554e 909 req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 910 req.encap_resp_len = cpu_to_le16(msg_size);
911 req.encap_resp_addr = encap_resp_addr;
912 req.encap_resp_cmpl_ring = encap_resp_cpr;
913 memcpy(req.encap_resp, encap_resp, msg_size);
914
a798302d
MC		 915 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
916 if (rc)
c0c050c5 917 netdev_err(bp->dev, "hwrm_fwd_resp failed. rc:%d\n", rc);
c0c050c5
MC		 918 return rc;
919}
920
921static int bnxt_hwrm_fwd_err_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
922 u32 msg_size)
923{
924 int rc = 0;
925 struct hwrm_reject_fwd_resp_input req = {0};
c0c050c5 926
59895f59
MC		 927 if (BNXT_REJ_FWD_RESP_SIZE_ERR(msg_size))
928 return -EINVAL;
929
c0c050c5
MC		 930 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_REJECT_FWD_RESP, -1, -1);
931 /* Set the new target id */
932 req.target_id = cpu_to_le16(vf->fw_fid);
c193554e 933 req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 934 memcpy(req.encap_request, vf->hwrm_cmd_req_addr, msg_size);
935
a798302d
MC		 936 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
937 if (rc)
c0c050c5 938 netdev_err(bp->dev, "hwrm_fwd_err_resp failed. rc:%d\n", rc);
c0c050c5
MC		 939 return rc;
940}
941
942static int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
943 u32 msg_size)
944{
945 int rc = 0;
946 struct hwrm_exec_fwd_resp_input req = {0};
c0c050c5 947
59895f59
MC		 948 if (BNXT_EXEC_FWD_RESP_SIZE_ERR(msg_size))
949 return -EINVAL;
950
c0c050c5
MC		 951 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_EXEC_FWD_RESP, -1, -1);
952 /* Set the new target id */
953 req.target_id = cpu_to_le16(vf->fw_fid);
c193554e 954 req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 955 memcpy(req.encap_request, vf->hwrm_cmd_req_addr, msg_size);
956
a798302d
MC		 957 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
958 if (rc)
c0c050c5 959 netdev_err(bp->dev, "hwrm_exec_fw_resp failed. rc:%d\n", rc);
c0c050c5
MC		 960 return rc;
961}
962
746df139 963static int bnxt_vf_configure_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
91cdda40
VV		 964{
965 u32 msg_size = sizeof(struct hwrm_func_vf_cfg_input);
966 struct hwrm_func_vf_cfg_input *req =
967 (struct hwrm_func_vf_cfg_input *)vf->hwrm_cmd_req_addr;
968
746df139
VV		 969 /* Allow VF to set a valid MAC address, if trust is set to on or
970 * if the PF assigned MAC address is zero
91cdda40
VV		 971 */
972 if (req->enables & cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR)) {
2a516444
MC		 973 bool trust = bnxt_is_trusted_vf(bp, vf);
974
91cdda40 975 if (is_valid_ether_addr(req->dflt_mac_addr) &&
2a516444 976 (trust || !is_valid_ether_addr(vf->mac_addr) ||
707e7e96 977 ether_addr_equal(req->dflt_mac_addr, vf->mac_addr))) {
91cdda40
VV		 978 ether_addr_copy(vf->vf_mac_addr, req->dflt_mac_addr);
979 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
980 }
981 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
982 }
983 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
984}
985
c0c050c5
MC		 986static int bnxt_vf_validate_set_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
987{
988 u32 msg_size = sizeof(struct hwrm_cfa_l2_filter_alloc_input);
989 struct hwrm_cfa_l2_filter_alloc_input *req =
990 (struct hwrm_cfa_l2_filter_alloc_input *)vf->hwrm_cmd_req_addr;
91cdda40 991 bool mac_ok = false;
c0c050c5 992
746df139
VV		 993 if (!is_valid_ether_addr((const u8 *)req->l2_addr))
994 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
995
996 /* Allow VF to set a valid MAC address, if trust is set to on.
997 * Or VF MAC address must first match MAC address in PF's context.
91cdda40
VV		 998 * Otherwise, it must match the VF MAC address if firmware spec >=
999 * 1.2.2
1000 */
2a516444 1001 if (bnxt_is_trusted_vf(bp, vf)) {
746df139
VV		 1002 mac_ok = true;
1003 } else if (is_valid_ether_addr(vf->mac_addr)) {
91cdda40
VV		 1004 if (ether_addr_equal((const u8 *)req->l2_addr, vf->mac_addr))
1005 mac_ok = true;
1006 } else if (is_valid_ether_addr(vf->vf_mac_addr)) {
1007 if (ether_addr_equal((const u8 *)req->l2_addr, vf->vf_mac_addr))
1008 mac_ok = true;
91cdda40 1009 } else {
6fd544c8
Y		 1010 /* There are two cases:
1011 * 1.If firmware spec < 0x10202,VF MAC address is not forwarded
1012 * to the PF and so it doesn't have to match
1013 * 2.Allow VF to modify it's own MAC when PF has not assigned a
1014 * valid MAC address and firmware spec >= 0x10202
1015 */
91cdda40
VV		 1016 mac_ok = true;
1017 }
1018 if (mac_ok)
c0c050c5 1019 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
91cdda40 1020 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
c0c050c5
MC		 1021}
1022
1023static int bnxt_vf_set_link(struct bnxt *bp, struct bnxt_vf_info *vf)
1024{
1025 int rc = 0;
1026
1027 if (!(vf->flags & BNXT_VF_LINK_FORCED)) {
1028 /* real link */
1029 rc = bnxt_hwrm_exec_fwd_resp(
1030 bp, vf, sizeof(struct hwrm_port_phy_qcfg_input));
1031 } else {
1032 struct hwrm_port_phy_qcfg_output phy_qcfg_resp;
1033 struct hwrm_port_phy_qcfg_input *phy_qcfg_req;
1034
1035 phy_qcfg_req =
1036 (struct hwrm_port_phy_qcfg_input *)vf->hwrm_cmd_req_addr;
1037 mutex_lock(&bp->hwrm_cmd_lock);
1038 memcpy(&phy_qcfg_resp, &bp->link_info.phy_qcfg_resp,
1039 sizeof(phy_qcfg_resp));
1040 mutex_unlock(&bp->hwrm_cmd_lock);
845adfe4 1041 phy_qcfg_resp.resp_len = cpu_to_le16(sizeof(phy_qcfg_resp));
c0c050c5 1042 phy_qcfg_resp.seq_id = phy_qcfg_req->seq_id;
845adfe4 1043 phy_qcfg_resp.valid = 1;
c0c050c5
MC		 1044
1045 if (vf->flags & BNXT_VF_LINK_UP) {
1046 /* if physical link is down, force link up on VF */
73b9bad6
MC		 1047 if (phy_qcfg_resp.link !=
1048 PORT_PHY_QCFG_RESP_LINK_LINK) {
c0c050c5
MC		 1049 phy_qcfg_resp.link =
1050 PORT_PHY_QCFG_RESP_LINK_LINK;
11f15ed3
MC		 1051 phy_qcfg_resp.link_speed = cpu_to_le16(
1052 PORT_PHY_QCFG_RESP_LINK_SPEED_10GB);
acb20054
MC		 1053 phy_qcfg_resp.duplex_cfg =
1054 PORT_PHY_QCFG_RESP_DUPLEX_CFG_FULL;
1055 phy_qcfg_resp.duplex_state =
1056 PORT_PHY_QCFG_RESP_DUPLEX_STATE_FULL;
c0c050c5
MC		 1057 phy_qcfg_resp.pause =
1058 (PORT_PHY_QCFG_RESP_PAUSE_TX |
1059 PORT_PHY_QCFG_RESP_PAUSE_RX);
1060 }
1061 } else {
1062 /* force link down */
1063 phy_qcfg_resp.link = PORT_PHY_QCFG_RESP_LINK_NO_LINK;
1064 phy_qcfg_resp.link_speed = 0;
acb20054
MC		 1065 phy_qcfg_resp.duplex_state =
1066 PORT_PHY_QCFG_RESP_DUPLEX_STATE_HALF;
c0c050c5
MC		 1067 phy_qcfg_resp.pause = 0;
1068 }
1069 rc = bnxt_hwrm_fwd_resp(bp, vf, &phy_qcfg_resp,
1070 phy_qcfg_req->resp_addr,
1071 phy_qcfg_req->cmpl_ring,
1072 sizeof(phy_qcfg_resp));
1073 }
1074 return rc;
1075}
1076
1077static int bnxt_vf_req_validate_snd(struct bnxt *bp, struct bnxt_vf_info *vf)
1078{
1079 int rc = 0;
a8643e16
MC		 1080 struct input *encap_req = vf->hwrm_cmd_req_addr;
1081 u32 req_type = le16_to_cpu(encap_req->req_type);
c0c050c5
MC		 1082
1083 switch (req_type) {
91cdda40 1084 case HWRM_FUNC_VF_CFG:
746df139 1085 rc = bnxt_vf_configure_mac(bp, vf);
91cdda40 1086 break;
c0c050c5
MC		 1087 case HWRM_CFA_L2_FILTER_ALLOC:
1088 rc = bnxt_vf_validate_set_mac(bp, vf);
1089 break;
1090 case HWRM_FUNC_CFG:
1091 /* TODO Validate if VF is allowed to change mac address,
1092 * mtu, num of rings etc
1093 */
1094 rc = bnxt_hwrm_exec_fwd_resp(
1095 bp, vf, sizeof(struct hwrm_func_cfg_input));
1096 break;
1097 case HWRM_PORT_PHY_QCFG:
1098 rc = bnxt_vf_set_link(bp, vf);
1099 break;
1100 default:
1101 break;
1102 }
1103 return rc;
1104}
1105
1106void bnxt_hwrm_exec_fwd_req(struct bnxt *bp)
1107{
1108 u32 i = 0, active_vfs = bp->pf.active_vfs, vf_id;
1109
1110 /* Scan through VF's and process commands */
1111 while (1) {
1112 vf_id = find_next_bit(bp->pf.vf_event_bmap, active_vfs, i);
1113 if (vf_id >= active_vfs)
1114 break;
1115
1116 clear_bit(vf_id, bp->pf.vf_event_bmap);
1117 bnxt_vf_req_validate_snd(bp, &bp->pf.vf[vf_id]);
1118 i = vf_id + 1;
1119 }
1120}
379a80a1
MC		 1121
1122void bnxt_update_vf_mac(struct bnxt *bp)
1123{
1124 struct hwrm_func_qcaps_input req = {0};
1125 struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
1126
1127 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1);
1128 req.fid = cpu_to_le16(0xffff);
1129
1130 mutex_lock(&bp->hwrm_cmd_lock);
1131 if (_hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT))
1132 goto update_vf_mac_exit;
1133
3874d6a8
JH		 1134 /* Store MAC address from the firmware. There are 2 cases:
1135 * 1. MAC address is valid. It is assigned from the PF and we
1136 * need to override the current VF MAC address with it.
1137 * 2. MAC address is zero. The VF will use a random MAC address by
1138 * default but the stored zero MAC will allow the VF user to change
1139 * the random MAC address using ndo_set_mac_address() if he wants.
1140 */
11f15ed3
MC		 1141 if (!ether_addr_equal(resp->mac_address, bp->vf.mac_addr))
1142 memcpy(bp->vf.mac_addr, resp->mac_address, ETH_ALEN);
3874d6a8
JH		 1143
1144 /* overwrite netdev dev_addr with admin VF MAC */
1145 if (is_valid_ether_addr(bp->vf.mac_addr))
1146 memcpy(bp->dev->dev_addr, bp->vf.mac_addr, ETH_ALEN);
379a80a1
MC		 1147update_vf_mac_exit:
1148 mutex_unlock(&bp->hwrm_cmd_lock);
1149}
1150
28ea334b 1151int bnxt_approve_mac(struct bnxt *bp, u8 *mac, bool strict)
84c33dd3
MC		 1152{
1153 struct hwrm_func_vf_cfg_input req = {0};
1154 int rc = 0;
1155
1156 if (!BNXT_VF(bp))
1157 return 0;
1158
1159 if (bp->hwrm_spec_code < 0x10202) {
1160 if (is_valid_ether_addr(bp->vf.mac_addr))
1161 rc = -EADDRNOTAVAIL;
1162 goto mac_done;
1163 }
1164 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1);
1165 req.enables = cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
1166 memcpy(req.dflt_mac_addr, mac, ETH_ALEN);
1167 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1168mac_done:
28ea334b 1169 if (rc && strict) {
84c33dd3
MC		 1170 rc = -EADDRNOTAVAIL;
1171 netdev_warn(bp->dev, "VF MAC address %pM not approved by the PF\n",
1172 mac);
28ea334b 1173 return rc;
84c33dd3 1174 }
28ea334b 1175 return 0;
84c33dd3 1176}
c0c050c5
MC		 1177#else
1178
2cd86968 1179int bnxt_cfg_hw_sriov(struct bnxt *bp, int *num_vfs, bool reset)
702d5011
MC		 1180{
1181 if (*num_vfs)
1182 return -EOPNOTSUPP;
1183 return 0;
1184}
1185
c0c050c5
MC		 1186void bnxt_sriov_disable(struct bnxt *bp)
1187{
1188}
1189
1190void bnxt_hwrm_exec_fwd_req(struct bnxt *bp)
1191{
379a80a1
MC		 1192 netdev_err(bp->dev, "Invalid VF message received when SRIOV is not enable\n");
1193}
1194
1195void bnxt_update_vf_mac(struct bnxt *bp)
1196{
c0c050c5 1197}
84c33dd3 1198
28ea334b 1199int bnxt_approve_mac(struct bnxt *bp, u8 *mac, bool strict)
84c33dd3
MC		 1200{
1201 return 0;
1202}
c0c050c5 1203#endif
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