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[SCSI] zfcp: support for hardware data router
[people/ms/linux.git] / drivers / scsi / qla2xxx / qla_nx.c
CommitLineData
a9083016
GM		 1/*
2 * QLogic Fibre Channel HBA Driver
07e264b7 3 * Copyright (c) 2003-2011 QLogic Corporation
a9083016
GM		 4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7#include "qla_def.h"
8#include <linux/delay.h>
9#include <linux/pci.h>
ff2fc42e 10#include <scsi/scsi_tcq.h>
a9083016
GM		 11
12#define MASK(n) ((1ULL<<(n))-1)
13#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
14 ((addr >> 25) & 0x3ff))
15#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
16 ((addr >> 25) & 0x3ff))
17#define MS_WIN(addr) (addr & 0x0ffc0000)
18#define QLA82XX_PCI_MN_2M (0)
19#define QLA82XX_PCI_MS_2M (0x80000)
20#define QLA82XX_PCI_OCM0_2M (0xc0000)
21#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
22#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
0547fb37 23#define BLOCK_PROTECT_BITS 0x0F
a9083016
GM		 24
25/* CRB window related */
26#define CRB_BLK(off) ((off >> 20) & 0x3f)
27#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
28#define CRB_WINDOW_2M (0x130060)
29#define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
30#define CRB_HI(off) ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
31 ((off) & 0xf0000))
32#define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
33#define CRB_INDIRECT_2M (0x1e0000UL)
34
a9083016
GM		 35#define MAX_CRB_XFORM 60
36static unsigned long crb_addr_xform[MAX_CRB_XFORM];
37int qla82xx_crb_table_initialized;
38
39#define qla82xx_crb_addr_transform(name) \
40 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
41 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
42
43static void qla82xx_crb_addr_transform_setup(void)
44{
45 qla82xx_crb_addr_transform(XDMA);
46 qla82xx_crb_addr_transform(TIMR);
47 qla82xx_crb_addr_transform(SRE);
48 qla82xx_crb_addr_transform(SQN3);
49 qla82xx_crb_addr_transform(SQN2);
50 qla82xx_crb_addr_transform(SQN1);
51 qla82xx_crb_addr_transform(SQN0);
52 qla82xx_crb_addr_transform(SQS3);
53 qla82xx_crb_addr_transform(SQS2);
54 qla82xx_crb_addr_transform(SQS1);
55 qla82xx_crb_addr_transform(SQS0);
56 qla82xx_crb_addr_transform(RPMX7);
57 qla82xx_crb_addr_transform(RPMX6);
58 qla82xx_crb_addr_transform(RPMX5);
59 qla82xx_crb_addr_transform(RPMX4);
60 qla82xx_crb_addr_transform(RPMX3);
61 qla82xx_crb_addr_transform(RPMX2);
62 qla82xx_crb_addr_transform(RPMX1);
63 qla82xx_crb_addr_transform(RPMX0);
64 qla82xx_crb_addr_transform(ROMUSB);
65 qla82xx_crb_addr_transform(SN);
66 qla82xx_crb_addr_transform(QMN);
67 qla82xx_crb_addr_transform(QMS);
68 qla82xx_crb_addr_transform(PGNI);
69 qla82xx_crb_addr_transform(PGND);
70 qla82xx_crb_addr_transform(PGN3);
71 qla82xx_crb_addr_transform(PGN2);
72 qla82xx_crb_addr_transform(PGN1);
73 qla82xx_crb_addr_transform(PGN0);
74 qla82xx_crb_addr_transform(PGSI);
75 qla82xx_crb_addr_transform(PGSD);
76 qla82xx_crb_addr_transform(PGS3);
77 qla82xx_crb_addr_transform(PGS2);
78 qla82xx_crb_addr_transform(PGS1);
79 qla82xx_crb_addr_transform(PGS0);
80 qla82xx_crb_addr_transform(PS);
81 qla82xx_crb_addr_transform(PH);
82 qla82xx_crb_addr_transform(NIU);
83 qla82xx_crb_addr_transform(I2Q);
84 qla82xx_crb_addr_transform(EG);
85 qla82xx_crb_addr_transform(MN);
86 qla82xx_crb_addr_transform(MS);
87 qla82xx_crb_addr_transform(CAS2);
88 qla82xx_crb_addr_transform(CAS1);
89 qla82xx_crb_addr_transform(CAS0);
90 qla82xx_crb_addr_transform(CAM);
91 qla82xx_crb_addr_transform(C2C1);
92 qla82xx_crb_addr_transform(C2C0);
93 qla82xx_crb_addr_transform(SMB);
94 qla82xx_crb_addr_transform(OCM0);
95 /*
96 * Used only in P3 just define it for P2 also.
97 */
98 qla82xx_crb_addr_transform(I2C0);
99
100 qla82xx_crb_table_initialized = 1;
101}
102
103struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
104 {{{0, 0, 0, 0} } },
105 {{{1, 0x0100000, 0x0102000, 0x120000},
106 {1, 0x0110000, 0x0120000, 0x130000},
107 {1, 0x0120000, 0x0122000, 0x124000},
108 {1, 0x0130000, 0x0132000, 0x126000},
109 {1, 0x0140000, 0x0142000, 0x128000},
110 {1, 0x0150000, 0x0152000, 0x12a000},
111 {1, 0x0160000, 0x0170000, 0x110000},
112 {1, 0x0170000, 0x0172000, 0x12e000},
113 {0, 0x0000000, 0x0000000, 0x000000},
114 {0, 0x0000000, 0x0000000, 0x000000},
115 {0, 0x0000000, 0x0000000, 0x000000},
116 {0, 0x0000000, 0x0000000, 0x000000},
117 {0, 0x0000000, 0x0000000, 0x000000},
118 {0, 0x0000000, 0x0000000, 0x000000},
119 {1, 0x01e0000, 0x01e0800, 0x122000},
120 {0, 0x0000000, 0x0000000, 0x000000} } } ,
121 {{{1, 0x0200000, 0x0210000, 0x180000} } },
122 {{{0, 0, 0, 0} } },
123 {{{1, 0x0400000, 0x0401000, 0x169000} } },
124 {{{1, 0x0500000, 0x0510000, 0x140000} } },
125 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
126 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
127 {{{1, 0x0800000, 0x0802000, 0x170000},
128 {0, 0x0000000, 0x0000000, 0x000000},
129 {0, 0x0000000, 0x0000000, 0x000000},
130 {0, 0x0000000, 0x0000000, 0x000000},
131 {0, 0x0000000, 0x0000000, 0x000000},
132 {0, 0x0000000, 0x0000000, 0x000000},
133 {0, 0x0000000, 0x0000000, 0x000000},
134 {0, 0x0000000, 0x0000000, 0x000000},
135 {0, 0x0000000, 0x0000000, 0x000000},
136 {0, 0x0000000, 0x0000000, 0x000000},
137 {0, 0x0000000, 0x0000000, 0x000000},
138 {0, 0x0000000, 0x0000000, 0x000000},
139 {0, 0x0000000, 0x0000000, 0x000000},
140 {0, 0x0000000, 0x0000000, 0x000000},
141 {0, 0x0000000, 0x0000000, 0x000000},
142 {1, 0x08f0000, 0x08f2000, 0x172000} } },
143 {{{1, 0x0900000, 0x0902000, 0x174000},
144 {0, 0x0000000, 0x0000000, 0x000000},
145 {0, 0x0000000, 0x0000000, 0x000000},
146 {0, 0x0000000, 0x0000000, 0x000000},
147 {0, 0x0000000, 0x0000000, 0x000000},
148 {0, 0x0000000, 0x0000000, 0x000000},
149 {0, 0x0000000, 0x0000000, 0x000000},
150 {0, 0x0000000, 0x0000000, 0x000000},
151 {0, 0x0000000, 0x0000000, 0x000000},
152 {0, 0x0000000, 0x0000000, 0x000000},
153 {0, 0x0000000, 0x0000000, 0x000000},
154 {0, 0x0000000, 0x0000000, 0x000000},
155 {0, 0x0000000, 0x0000000, 0x000000},
156 {0, 0x0000000, 0x0000000, 0x000000},
157 {0, 0x0000000, 0x0000000, 0x000000},
158 {1, 0x09f0000, 0x09f2000, 0x176000} } },
159 {{{0, 0x0a00000, 0x0a02000, 0x178000},
160 {0, 0x0000000, 0x0000000, 0x000000},
161 {0, 0x0000000, 0x0000000, 0x000000},
162 {0, 0x0000000, 0x0000000, 0x000000},
163 {0, 0x0000000, 0x0000000, 0x000000},
164 {0, 0x0000000, 0x0000000, 0x000000},
165 {0, 0x0000000, 0x0000000, 0x000000},
166 {0, 0x0000000, 0x0000000, 0x000000},
167 {0, 0x0000000, 0x0000000, 0x000000},
168 {0, 0x0000000, 0x0000000, 0x000000},
169 {0, 0x0000000, 0x0000000, 0x000000},
170 {0, 0x0000000, 0x0000000, 0x000000},
171 {0, 0x0000000, 0x0000000, 0x000000},
172 {0, 0x0000000, 0x0000000, 0x000000},
173 {0, 0x0000000, 0x0000000, 0x000000},
174 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
175 {{{0, 0x0b00000, 0x0b02000, 0x17c000},
176 {0, 0x0000000, 0x0000000, 0x000000},
177 {0, 0x0000000, 0x0000000, 0x000000},
178 {0, 0x0000000, 0x0000000, 0x000000},
179 {0, 0x0000000, 0x0000000, 0x000000},
180 {0, 0x0000000, 0x0000000, 0x000000},
181 {0, 0x0000000, 0x0000000, 0x000000},
182 {0, 0x0000000, 0x0000000, 0x000000},
183 {0, 0x0000000, 0x0000000, 0x000000},
184 {0, 0x0000000, 0x0000000, 0x000000},
185 {0, 0x0000000, 0x0000000, 0x000000},
186 {0, 0x0000000, 0x0000000, 0x000000},
187 {0, 0x0000000, 0x0000000, 0x000000},
188 {0, 0x0000000, 0x0000000, 0x000000},
189 {0, 0x0000000, 0x0000000, 0x000000},
190 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
191 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
192 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
193 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
194 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
195 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
196 {{{1, 0x1100000, 0x1101000, 0x160000} } },
197 {{{1, 0x1200000, 0x1201000, 0x161000} } },
198 {{{1, 0x1300000, 0x1301000, 0x162000} } },
199 {{{1, 0x1400000, 0x1401000, 0x163000} } },
200 {{{1, 0x1500000, 0x1501000, 0x165000} } },
201 {{{1, 0x1600000, 0x1601000, 0x166000} } },
202 {{{0, 0, 0, 0} } },
203 {{{0, 0, 0, 0} } },
204 {{{0, 0, 0, 0} } },
205 {{{0, 0, 0, 0} } },
206 {{{0, 0, 0, 0} } },
207 {{{0, 0, 0, 0} } },
208 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
209 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
210 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
211 {{{0} } },
212 {{{1, 0x2100000, 0x2102000, 0x120000},
213 {1, 0x2110000, 0x2120000, 0x130000},
214 {1, 0x2120000, 0x2122000, 0x124000},
215 {1, 0x2130000, 0x2132000, 0x126000},
216 {1, 0x2140000, 0x2142000, 0x128000},
217 {1, 0x2150000, 0x2152000, 0x12a000},
218 {1, 0x2160000, 0x2170000, 0x110000},
219 {1, 0x2170000, 0x2172000, 0x12e000},
220 {0, 0x0000000, 0x0000000, 0x000000},
221 {0, 0x0000000, 0x0000000, 0x000000},
222 {0, 0x0000000, 0x0000000, 0x000000},
223 {0, 0x0000000, 0x0000000, 0x000000},
224 {0, 0x0000000, 0x0000000, 0x000000},
225 {0, 0x0000000, 0x0000000, 0x000000},
226 {0, 0x0000000, 0x0000000, 0x000000},
227 {0, 0x0000000, 0x0000000, 0x000000} } },
228 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
229 {{{0} } },
230 {{{0} } },
231 {{{0} } },
232 {{{0} } },
233 {{{0} } },
234 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
235 {{{1, 0x2900000, 0x2901000, 0x16b000} } },
236 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
237 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
238 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
239 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
240 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
241 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
242 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
243 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
244 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
245 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
246 {{{0} } },
247 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
248 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
249 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
250 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
251 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
252 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
253 {{{0} } },
254 {{{0} } },
255 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
256 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
257 {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
258};
259
260/*
261 * top 12 bits of crb internal address (hub, agent)
262 */
263unsigned qla82xx_crb_hub_agt[64] = {
264 0,
265 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
266 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
267 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
268 0,
269 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
270 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
271 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
272 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
273 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
274 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
275 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
276 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
278 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
280 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
291 0,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
293 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
294 0,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
296 0,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
298 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
299 0,
300 0,
301 0,
302 0,
303 0,
304 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
305 0,
306 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
307 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
308 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
309 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
310 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
311 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
312 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
313 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
314 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
315 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
316 0,
317 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
318 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
321 0,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
323 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
324 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
325 0,
326 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
327 0,
328};
329
f1af6208
GM		 330/* Device states */
331char *qdev_state[] = {
332 "Unknown",
333 "Cold",
334 "Initializing",
335 "Ready",
336 "Need Reset",
337 "Need Quiescent",
338 "Failed",
339 "Quiescent",
340};
341
a9083016
GM		 342/*
343 * In: 'off' is offset from CRB space in 128M pci map
344 * Out: 'off' is 2M pci map addr
345 * side effect: lock crb window
346 */
347static void
348qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
349{
350 u32 win_read;
7c3df132 351 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 352
353 ha->crb_win = CRB_HI(*off);
354 writel(ha->crb_win,
355 (void *)(CRB_WINDOW_2M + ha->nx_pcibase));
356
357 /* Read back value to make sure write has gone through before trying
358 * to use it.
359 */
360 win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
361 if (win_read != ha->crb_win) {
7c3df132
SK		 362 ql_dbg(ql_dbg_p3p, vha, 0xb000,
363 "%s: Written crbwin (0x%x) "
364 "!= Read crbwin (0x%x), off=0x%lx.\n",
365 ha->crb_win, win_read, *off);
a9083016
GM		 366 }
367 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
368}
369
370static inline unsigned long
371qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
372{
7c3df132 373 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 374 /* See if we are currently pointing to the region we want to use next */
375 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
376 /* No need to change window. PCIX and PCIEregs are in both
377 * regs are in both windows.
378 */
379 return off;
380 }
381
382 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
383 /* We are in first CRB window */
384 if (ha->curr_window != 0)
385 WARN_ON(1);
386 return off;
387 }
388
389 if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
390 /* We are in second CRB window */
391 off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
392
393 if (ha->curr_window != 1)
394 return off;
395
396 /* We are in the QM or direct access
397 * register region - do nothing
398 */
399 if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
400 (off < QLA82XX_PCI_CAMQM_MAX))
401 return off;
402 }
403 /* strange address given */
7c3df132
SK		 404 ql_dbg(ql_dbg_p3p, vha, 0xb001,
405 "%x: Warning: unm_nic_pci_set_crbwindow "
406 "called with an unknown address(%llx).\n",
407 QLA2XXX_DRIVER_NAME, off);
a9083016
GM		 408 return off;
409}
410
77e334d2
GM		 411static int
412qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
413{
414 struct crb_128M_2M_sub_block_map *m;
415
416 if (*off >= QLA82XX_CRB_MAX)
417 return -1;
418
419 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
420 *off = (*off - QLA82XX_PCI_CAMQM) +
421 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
422 return 0;
423 }
424
425 if (*off < QLA82XX_PCI_CRBSPACE)
426 return -1;
427
428 *off -= QLA82XX_PCI_CRBSPACE;
429
430 /* Try direct map */
431 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
432
433 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
434 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
435 return 0;
436 }
437 /* Not in direct map, use crb window */
438 return 1;
439}
440
441#define CRB_WIN_LOCK_TIMEOUT 100000000
442static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
443{
444 int done = 0, timeout = 0;
445
446 while (!done) {
447 /* acquire semaphore3 from PCI HW block */
448 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
449 if (done == 1)
450 break;
451 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
452 return -1;
453 timeout++;
454 }
455 qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
456 return 0;
457}
458
a9083016
GM		 459int
460qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
461{
462 unsigned long flags = 0;
463 int rv;
464
465 rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
466
467 BUG_ON(rv == -1);
468
469 if (rv == 1) {
470 write_lock_irqsave(&ha->hw_lock, flags);
471 qla82xx_crb_win_lock(ha);
472 qla82xx_pci_set_crbwindow_2M(ha, &off);
473 }
474
475 writel(data, (void __iomem *)off);
476
477 if (rv == 1) {
478 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
479 write_unlock_irqrestore(&ha->hw_lock, flags);
480 }
481 return 0;
482}
483
484int
485qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
486{
487 unsigned long flags = 0;
488 int rv;
489 u32 data;
490
491 rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
492
493 BUG_ON(rv == -1);
494
495 if (rv == 1) {
496 write_lock_irqsave(&ha->hw_lock, flags);
497 qla82xx_crb_win_lock(ha);
498 qla82xx_pci_set_crbwindow_2M(ha, &off);
499 }
500 data = RD_REG_DWORD((void __iomem *)off);
501
502 if (rv == 1) {
503 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
504 write_unlock_irqrestore(&ha->hw_lock, flags);
505 }
506 return data;
507}
508
a9083016
GM		 509#define IDC_LOCK_TIMEOUT 100000000
510int qla82xx_idc_lock(struct qla_hw_data *ha)
511{
512 int i;
513 int done = 0, timeout = 0;
514
515 while (!done) {
516 /* acquire semaphore5 from PCI HW block */
517 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
518 if (done == 1)
519 break;
520 if (timeout >= IDC_LOCK_TIMEOUT)
521 return -1;
522
523 timeout++;
524
525 /* Yield CPU */
526 if (!in_interrupt())
527 schedule();
528 else {
529 for (i = 0; i < 20; i++)
530 cpu_relax();
531 }
532 }
533
534 return 0;
535}
536
537void qla82xx_idc_unlock(struct qla_hw_data *ha)
538{
539 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
540}
541
a9083016
GM		 542/* PCI Windowing for DDR regions. */
543#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
544 (((addr) <= (high)) && ((addr) >= (low)))
545/*
546 * check memory access boundary.
547 * used by test agent. support ddr access only for now
548 */
549static unsigned long
550qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
551 unsigned long long addr, int size)
552{
553 if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
554 QLA82XX_ADDR_DDR_NET_MAX) ||
555 !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
556 QLA82XX_ADDR_DDR_NET_MAX) ||
557 ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
558 return 0;
559 else
560 return 1;
561}
562
563int qla82xx_pci_set_window_warning_count;
564
77e334d2 565static unsigned long
a9083016
GM		 566qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
567{
568 int window;
569 u32 win_read;
7c3df132 570 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 571
572 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
573 QLA82XX_ADDR_DDR_NET_MAX)) {
574 /* DDR network side */
575 window = MN_WIN(addr);
576 ha->ddr_mn_window = window;
577 qla82xx_wr_32(ha,
578 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
579 win_read = qla82xx_rd_32(ha,
580 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
581 if ((win_read << 17) != window) {
7c3df132
SK		 582 ql_dbg(ql_dbg_p3p, vha, 0xb003,
583 "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
a9083016
GM		 584 __func__, window, win_read);
585 }
586 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
587 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
588 QLA82XX_ADDR_OCM0_MAX)) {
589 unsigned int temp1;
590 if ((addr & 0x00ff800) == 0xff800) {
7c3df132 591 ql_log(ql_log_warn, vha, 0xb004,
a9083016
GM		 592 "%s: QM access not handled.\n", __func__);
593 addr = -1UL;
594 }
595 window = OCM_WIN(addr);
596 ha->ddr_mn_window = window;
597 qla82xx_wr_32(ha,
598 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
599 win_read = qla82xx_rd_32(ha,
600 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
601 temp1 = ((window & 0x1FF) << 7) |
602 ((window & 0x0FFFE0000) >> 17);
603 if (win_read != temp1) {
7c3df132
SK		 604 ql_log(ql_log_warn, vha, 0xb005,
605 "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
a9083016
GM		 606 __func__, temp1, win_read);
607 }
608 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
609
610 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
611 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
612 /* QDR network side */
613 window = MS_WIN(addr);
614 ha->qdr_sn_window = window;
615 qla82xx_wr_32(ha,
616 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
617 win_read = qla82xx_rd_32(ha,
618 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
619 if (win_read != window) {
7c3df132
SK		 620 ql_log(ql_log_warn, vha, 0xb006,
621 "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
a9083016
GM		 622 __func__, window, win_read);
623 }
624 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
625 } else {
626 /*
627 * peg gdb frequently accesses memory that doesn't exist,
628 * this limits the chit chat so debugging isn't slowed down.
629 */
630 if ((qla82xx_pci_set_window_warning_count++ < 8) ||
631 (qla82xx_pci_set_window_warning_count%64 == 0)) {
7c3df132
SK		 632 ql_log(ql_log_warn, vha, 0xb007,
633 "%s: Warning:%s Unknown address range!.\n",
634 __func__, QLA2XXX_DRIVER_NAME);
a9083016
GM		 635 }
636 addr = -1UL;
637 }
638 return addr;
639}
640
641/* check if address is in the same windows as the previous access */
642static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
643 unsigned long long addr)
644{
645 int window;
646 unsigned long long qdr_max;
647
648 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
649
650 /* DDR network side */
651 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
652 QLA82XX_ADDR_DDR_NET_MAX))
653 BUG();
654 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
655 QLA82XX_ADDR_OCM0_MAX))
656 return 1;
657 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
658 QLA82XX_ADDR_OCM1_MAX))
659 return 1;
660 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
661 /* QDR network side */
662 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
663 if (ha->qdr_sn_window == window)
664 return 1;
665 }
666 return 0;
667}
668
669static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
670 u64 off, void *data, int size)
671{
672 unsigned long flags;
f1af6208 673 void *addr = NULL;
a9083016
GM		 674 int ret = 0;
675 u64 start;
676 uint8_t *mem_ptr = NULL;
677 unsigned long mem_base;
678 unsigned long mem_page;
7c3df132 679 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 680
681 write_lock_irqsave(&ha->hw_lock, flags);
682
683 /*
684 * If attempting to access unknown address or straddle hw windows,
685 * do not access.
686 */
687 start = qla82xx_pci_set_window(ha, off);
688 if ((start == -1UL) ||
689 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
690 write_unlock_irqrestore(&ha->hw_lock, flags);
7c3df132
SK		 691 ql_log(ql_log_fatal, vha, 0xb008,
692 "%s out of bound pci memory "
693 "access, offset is 0x%llx.\n",
694 QLA2XXX_DRIVER_NAME, off);
a9083016
GM		 695 return -1;
696 }
697
f1af6208
GM		 698 write_unlock_irqrestore(&ha->hw_lock, flags);
699 mem_base = pci_resource_start(ha->pdev, 0);
700 mem_page = start & PAGE_MASK;
701 /* Map two pages whenever user tries to access addresses in two
702 * consecutive pages.
703 */
704 if (mem_page != ((start + size - 1) & PAGE_MASK))
705 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
706 else
707 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
708 if (mem_ptr == 0UL) {
709 *(u8 *)data = 0;
710 return -1;
a9083016 711 }
f1af6208
GM		 712 addr = mem_ptr;
713 addr += start & (PAGE_SIZE - 1);
714 write_lock_irqsave(&ha->hw_lock, flags);
a9083016
GM		 715
716 switch (size) {
717 case 1:
718 *(u8 *)data = readb(addr);
719 break;
720 case 2:
721 *(u16 *)data = readw(addr);
722 break;
723 case 4:
724 *(u32 *)data = readl(addr);
725 break;
726 case 8:
727 *(u64 *)data = readq(addr);
728 break;
729 default:
730 ret = -1;
731 break;
732 }
733 write_unlock_irqrestore(&ha->hw_lock, flags);
734
735 if (mem_ptr)
736 iounmap(mem_ptr);
737 return ret;
738}
739
740static int
741qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
742 u64 off, void *data, int size)
743{
744 unsigned long flags;
f1af6208 745 void *addr = NULL;
a9083016
GM		 746 int ret = 0;
747 u64 start;
748 uint8_t *mem_ptr = NULL;
749 unsigned long mem_base;
750 unsigned long mem_page;
7c3df132 751 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 752
753 write_lock_irqsave(&ha->hw_lock, flags);
754
755 /*
756 * If attempting to access unknown address or straddle hw windows,
757 * do not access.
758 */
759 start = qla82xx_pci_set_window(ha, off);
760 if ((start == -1UL) ||
761 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
762 write_unlock_irqrestore(&ha->hw_lock, flags);
7c3df132
SK		 763 ql_log(ql_log_fatal, vha, 0xb009,
764 "%s out of bount memory "
765 "access, offset is 0x%llx.\n",
766 QLA2XXX_DRIVER_NAME, off);
a9083016
GM		 767 return -1;
768 }
769
f1af6208
GM		 770 write_unlock_irqrestore(&ha->hw_lock, flags);
771 mem_base = pci_resource_start(ha->pdev, 0);
772 mem_page = start & PAGE_MASK;
773 /* Map two pages whenever user tries to access addresses in two
774 * consecutive pages.
775 */
776 if (mem_page != ((start + size - 1) & PAGE_MASK))
777 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
778 else
779 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
780 if (mem_ptr == 0UL)
781 return -1;
a9083016 782
f1af6208
GM		 783 addr = mem_ptr;
784 addr += start & (PAGE_SIZE - 1);
785 write_lock_irqsave(&ha->hw_lock, flags);
a9083016
GM		 786
787 switch (size) {
788 case 1:
789 writeb(*(u8 *)data, addr);
790 break;
791 case 2:
792 writew(*(u16 *)data, addr);
793 break;
794 case 4:
795 writel(*(u32 *)data, addr);
796 break;
797 case 8:
798 writeq(*(u64 *)data, addr);
799 break;
800 default:
801 ret = -1;
802 break;
803 }
804 write_unlock_irqrestore(&ha->hw_lock, flags);
805 if (mem_ptr)
806 iounmap(mem_ptr);
807 return ret;
808}
809
a9083016 810#define MTU_FUDGE_FACTOR 100
77e334d2
GM		 811static unsigned long
812qla82xx_decode_crb_addr(unsigned long addr)
a9083016
GM		 813{
814 int i;
815 unsigned long base_addr, offset, pci_base;
816
817 if (!qla82xx_crb_table_initialized)
818 qla82xx_crb_addr_transform_setup();
819
820 pci_base = ADDR_ERROR;
821 base_addr = addr & 0xfff00000;
822 offset = addr & 0x000fffff;
823
824 for (i = 0; i < MAX_CRB_XFORM; i++) {
825 if (crb_addr_xform[i] == base_addr) {
826 pci_base = i << 20;
827 break;
828 }
829 }
830 if (pci_base == ADDR_ERROR)
831 return pci_base;
832 return pci_base + offset;
833}
834
835static long rom_max_timeout = 100;
836static long qla82xx_rom_lock_timeout = 100;
837
77e334d2 838static int
a9083016
GM		 839qla82xx_rom_lock(struct qla_hw_data *ha)
840{
841 int done = 0, timeout = 0;
842
843 while (!done) {
844 /* acquire semaphore2 from PCI HW block */
845 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
846 if (done == 1)
847 break;
848 if (timeout >= qla82xx_rom_lock_timeout)
849 return -1;
850 timeout++;
851 }
852 qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
853 return 0;
854}
855
d652e093
CD		 856static void
857qla82xx_rom_unlock(struct qla_hw_data *ha)
858{
859 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
860}
861
77e334d2 862static int
a9083016
GM		 863qla82xx_wait_rom_busy(struct qla_hw_data *ha)
864{
865 long timeout = 0;
866 long done = 0 ;
7c3df132 867 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 868
869 while (done == 0) {
870 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
871 done &= 4;
872 timeout++;
873 if (timeout >= rom_max_timeout) {
7c3df132
SK		 874 ql_dbg(ql_dbg_p3p, vha, 0xb00a,
875 "%s: Timeout reached waiting for rom busy.\n",
876 QLA2XXX_DRIVER_NAME);
a9083016
GM		 877 return -1;
878 }
879 }
880 return 0;
881}
882
77e334d2 883static int
a9083016
GM		 884qla82xx_wait_rom_done(struct qla_hw_data *ha)
885{
886 long timeout = 0;
887 long done = 0 ;
7c3df132 888 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 889
890 while (done == 0) {
891 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
892 done &= 2;
893 timeout++;
894 if (timeout >= rom_max_timeout) {
7c3df132
SK		 895 ql_dbg(ql_dbg_p3p, vha, 0xb00b,
896 "%s: Timeout reached waiting for rom done.\n",
897 QLA2XXX_DRIVER_NAME);
a9083016
GM		 898 return -1;
899 }
900 }
901 return 0;
902}
903
77e334d2 904static int
a9083016
GM		 905qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
906{
7c3df132
SK		 907 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
908
a9083016
GM		 909 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
910 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
911 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
912 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
913 qla82xx_wait_rom_busy(ha);
914 if (qla82xx_wait_rom_done(ha)) {
7c3df132
SK		 915 ql_log(ql_log_fatal, vha, 0x00ba,
916 "Error waiting for rom done.\n");
a9083016
GM		 917 return -1;
918 }
919 /* Reset abyte_cnt and dummy_byte_cnt */
920 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
921 udelay(10);
922 cond_resched();
923 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
924 *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
925 return 0;
926}
927
77e334d2 928static int
a9083016
GM		 929qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
930{
931 int ret, loops = 0;
7c3df132 932 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 933
934 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
935 udelay(100);
936 schedule();
937 loops++;
938 }
939 if (loops >= 50000) {
7c3df132
SK		 940 ql_log(ql_log_fatal, vha, 0x00b9,
941 "Failed to aquire SEM2 lock.\n");
a9083016
GM		 942 return -1;
943 }
944 ret = qla82xx_do_rom_fast_read(ha, addr, valp);
d652e093 945 qla82xx_rom_unlock(ha);
a9083016
GM		 946 return ret;
947}
948
77e334d2 949static int
a9083016
GM		 950qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
951{
7c3df132 952 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 953 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
954 qla82xx_wait_rom_busy(ha);
955 if (qla82xx_wait_rom_done(ha)) {
7c3df132
SK		 956 ql_log(ql_log_warn, vha, 0xb00c,
957 "Error waiting for rom done.\n");
a9083016
GM		 958 return -1;
959 }
960 *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
961 return 0;
962}
963
77e334d2 964static int
a9083016
GM		 965qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
966{
967 long timeout = 0;
968 uint32_t done = 1 ;
969 uint32_t val;
970 int ret = 0;
7c3df132 971 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 972
973 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
974 while ((done != 0) && (ret == 0)) {
975 ret = qla82xx_read_status_reg(ha, &val);
976 done = val & 1;
977 timeout++;
978 udelay(10);
979 cond_resched();
980 if (timeout >= 50000) {
7c3df132
SK		 981 ql_log(ql_log_warn, vha, 0xb00d,
982 "Timeout reached waiting for write finish.\n");
a9083016
GM		 983 return -1;
984 }
985 }
986 return ret;
987}
988
77e334d2 989static int
a9083016
GM		 990qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
991{
992 uint32_t val;
993 qla82xx_wait_rom_busy(ha);
994 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
995 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
996 qla82xx_wait_rom_busy(ha);
997 if (qla82xx_wait_rom_done(ha))
998 return -1;
999 if (qla82xx_read_status_reg(ha, &val) != 0)
1000 return -1;
1001 if ((val & 2) != 2)
1002 return -1;
1003 return 0;
1004}
1005
77e334d2 1006static int
a9083016
GM		 1007qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1008{
7c3df132 1009 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 1010 if (qla82xx_flash_set_write_enable(ha))
1011 return -1;
1012 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1013 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1014 if (qla82xx_wait_rom_done(ha)) {
7c3df132
SK		 1015 ql_log(ql_log_warn, vha, 0xb00e,
1016 "Error waiting for rom done.\n");
a9083016
GM		 1017 return -1;
1018 }
1019 return qla82xx_flash_wait_write_finish(ha);
1020}
1021
77e334d2 1022static int
a9083016
GM		 1023qla82xx_write_disable_flash(struct qla_hw_data *ha)
1024{
7c3df132 1025 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 1026 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1027 if (qla82xx_wait_rom_done(ha)) {
7c3df132
SK		 1028 ql_log(ql_log_warn, vha, 0xb00f,
1029 "Error waiting for rom done.\n");
a9083016
GM		 1030 return -1;
1031 }
1032 return 0;
1033}
1034
77e334d2 1035static int
a9083016
GM		 1036ql82xx_rom_lock_d(struct qla_hw_data *ha)
1037{
1038 int loops = 0;
7c3df132
SK		 1039 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1040
a9083016
GM		 1041 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1042 udelay(100);
1043 cond_resched();
1044 loops++;
1045 }
1046 if (loops >= 50000) {
7c3df132
SK		 1047 ql_log(ql_log_warn, vha, 0xb010,
1048 "ROM lock failed.\n");
a9083016
GM		 1049 return -1;
1050 }
1051 return 0;;
1052}
1053
77e334d2 1054static int
a9083016
GM		 1055qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1056 uint32_t data)
1057{
1058 int ret = 0;
7c3df132 1059 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 1060
1061 ret = ql82xx_rom_lock_d(ha);
1062 if (ret < 0) {
7c3df132
SK		 1063 ql_log(ql_log_warn, vha, 0xb011,
1064 "ROM lock failed.\n");
a9083016
GM		 1065 return ret;
1066 }
1067
1068 if (qla82xx_flash_set_write_enable(ha))
1069 goto done_write;
1070
1071 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1072 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1073 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1074 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1075 qla82xx_wait_rom_busy(ha);
1076 if (qla82xx_wait_rom_done(ha)) {
7c3df132
SK		 1077 ql_log(ql_log_warn, vha, 0xb012,
1078 "Error waiting for rom done.\n");
a9083016
GM		 1079 ret = -1;
1080 goto done_write;
1081 }
1082
1083 ret = qla82xx_flash_wait_write_finish(ha);
1084
1085done_write:
d652e093 1086 qla82xx_rom_unlock(ha);
a9083016
GM		 1087 return ret;
1088}
1089
1090/* This routine does CRB initialize sequence
1091 * to put the ISP into operational state
1092 */
77e334d2
GM		 1093static int
1094qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
a9083016
GM		 1095{
1096 int addr, val;
1097 int i ;
1098 struct crb_addr_pair *buf;
1099 unsigned long off;
1100 unsigned offset, n;
1101 struct qla_hw_data *ha = vha->hw;
1102
1103 struct crb_addr_pair {
1104 long addr;
1105 long data;
1106 };
1107
1108 /* Halt all the indiviual PEGs and other blocks of the ISP */
1109 qla82xx_rom_lock(ha);
c9e8fd5c 1110
02be2215
GM		 1111 /* disable all I2Q */
1112 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1113 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1114 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1115 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1116 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1117 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1118
1119 /* disable all niu interrupts */
c9e8fd5c
MI		 1120 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1121 /* disable xge rx/tx */
1122 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1123 /* disable xg1 rx/tx */
1124 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
02be2215
GM		 1125 /* disable sideband mac */
1126 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1127 /* disable ap0 mac */
1128 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1129 /* disable ap1 mac */
1130 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
c9e8fd5c
MI		 1131
1132 /* halt sre */
1133 val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1134 qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1135
1136 /* halt epg */
1137 qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1138
1139 /* halt timers */
1140 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1141 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1142 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1143 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1144 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
02be2215 1145 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
c9e8fd5c
MI		 1146
1147 /* halt pegs */
1148 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1149 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1150 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1151 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1152 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
02be2215 1153 msleep(20);
c9e8fd5c
MI		 1154
1155 /* big hammer */
a9083016
GM		 1156 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1157 /* don't reset CAM block on reset */
1158 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1159 else
1160 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
c9e8fd5c
MI		 1161
1162 /* reset ms */
1163 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1164 val |= (1 << 1);
1165 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1166 msleep(20);
1167
1168 /* unreset ms */
1169 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1170 val &= ~(1 << 1);
1171 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1172 msleep(20);
1173
d652e093 1174 qla82xx_rom_unlock(ha);
a9083016
GM		 1175
1176 /* Read the signature value from the flash.
1177 * Offset 0: Contain signature (0xcafecafe)
1178 * Offset 4: Offset and number of addr/value pairs
1179 * that present in CRB initialize sequence
1180 */
1181 if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1182 qla82xx_rom_fast_read(ha, 4, &n) != 0) {
7c3df132
SK		 1183 ql_log(ql_log_fatal, vha, 0x006e,
1184 "Error Reading crb_init area: n: %08x.\n", n);
a9083016
GM		 1185 return -1;
1186 }
1187
1188 /* Offset in flash = lower 16 bits
1189 * Number of enteries = upper 16 bits
1190 */
1191 offset = n & 0xffffU;
1192 n = (n >> 16) & 0xffffU;
1193
1194 /* number of addr/value pair should not exceed 1024 enteries */
1195 if (n >= 1024) {
7c3df132
SK		 1196 ql_log(ql_log_fatal, vha, 0x0071,
1197 "Card flash not initialized:n=0x%x.\n", n);
a9083016
GM		 1198 return -1;
1199 }
1200
7c3df132
SK		 1201 ql_log(ql_log_info, vha, 0x0072,
1202 "%d CRB init values found in ROM.\n", n);
a9083016
GM		 1203
1204 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1205 if (buf == NULL) {
7c3df132
SK		 1206 ql_log(ql_log_fatal, vha, 0x010c,
1207 "Unable to allocate memory.\n");
a9083016
GM		 1208 return -1;
1209 }
1210
1211 for (i = 0; i < n; i++) {
1212 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1213 qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1214 kfree(buf);
1215 return -1;
1216 }
1217
1218 buf[i].addr = addr;
1219 buf[i].data = val;
1220 }
1221
1222 for (i = 0; i < n; i++) {
1223 /* Translate internal CRB initialization
1224 * address to PCI bus address
1225 */
1226 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1227 QLA82XX_PCI_CRBSPACE;
1228 /* Not all CRB addr/value pair to be written,
1229 * some of them are skipped
1230 */
1231
1232 /* skipping cold reboot MAGIC */
1233 if (off == QLA82XX_CAM_RAM(0x1fc))
1234 continue;
1235
1236 /* do not reset PCI */
1237 if (off == (ROMUSB_GLB + 0xbc))
1238 continue;
1239
1240 /* skip core clock, so that firmware can increase the clock */
1241 if (off == (ROMUSB_GLB + 0xc8))
1242 continue;
1243
1244 /* skip the function enable register */
1245 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1246 continue;
1247
1248 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1249 continue;
1250
1251 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1252 continue;
1253
1254 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1255 continue;
1256
1257 if (off == ADDR_ERROR) {
7c3df132
SK		 1258 ql_log(ql_log_fatal, vha, 0x0116,
1259 "Unknow addr: 0x%08lx.\n", buf[i].addr);
a9083016
GM		 1260 continue;
1261 }
1262
a9083016
GM		 1263 qla82xx_wr_32(ha, off, buf[i].data);
1264
1265 /* ISP requires much bigger delay to settle down,
1266 * else crb_window returns 0xffffffff
1267 */
1268 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1269 msleep(1000);
1270
1271 /* ISP requires millisec delay between
1272 * successive CRB register updation
1273 */
1274 msleep(1);
1275 }
1276
1277 kfree(buf);
1278
1279 /* Resetting the data and instruction cache */
1280 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1281 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1282 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1283
1284 /* Clear all protocol processing engines */
1285 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1286 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1287 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1288 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1289 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1290 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1291 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1292 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1293 return 0;
1294}
1295
77e334d2
GM		 1296static int
1297qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1298 u64 off, void *data, int size)
1299{
1300 int i, j, ret = 0, loop, sz[2], off0;
1301 int scale, shift_amount, startword;
1302 uint32_t temp;
1303 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1304
1305 /*
1306 * If not MN, go check for MS or invalid.
1307 */
1308 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1309 mem_crb = QLA82XX_CRB_QDR_NET;
1310 else {
1311 mem_crb = QLA82XX_CRB_DDR_NET;
1312 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1313 return qla82xx_pci_mem_write_direct(ha,
1314 off, data, size);
1315 }
1316
1317 off0 = off & 0x7;
1318 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1319 sz[1] = size - sz[0];
1320
1321 off8 = off & 0xfffffff0;
1322 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1323 shift_amount = 4;
1324 scale = 2;
1325 startword = (off & 0xf)/8;
1326
1327 for (i = 0; i < loop; i++) {
1328 if (qla82xx_pci_mem_read_2M(ha, off8 +
1329 (i << shift_amount), &word[i * scale], 8))
1330 return -1;
1331 }
1332
1333 switch (size) {
1334 case 1:
1335 tmpw = *((uint8_t *)data);
1336 break;
1337 case 2:
1338 tmpw = *((uint16_t *)data);
1339 break;
1340 case 4:
1341 tmpw = *((uint32_t *)data);
1342 break;
1343 case 8:
1344 default:
1345 tmpw = *((uint64_t *)data);
1346 break;
1347 }
1348
1349 if (sz[0] == 8) {
1350 word[startword] = tmpw;
1351 } else {
1352 word[startword] &=
1353 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1354 word[startword] |= tmpw << (off0 * 8);
1355 }
1356 if (sz[1] != 0) {
1357 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1358 word[startword+1] |= tmpw >> (sz[0] * 8);
1359 }
1360
77e334d2
GM		 1361 for (i = 0; i < loop; i++) {
1362 temp = off8 + (i << shift_amount);
1363 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1364 temp = 0;
1365 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1366 temp = word[i * scale] & 0xffffffff;
1367 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1368 temp = (word[i * scale] >> 32) & 0xffffffff;
1369 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1370 temp = word[i*scale + 1] & 0xffffffff;
1371 qla82xx_wr_32(ha, mem_crb +
1372 MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1373 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1374 qla82xx_wr_32(ha, mem_crb +
1375 MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1376
1377 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1378 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1379 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1380 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1381
1382 for (j = 0; j < MAX_CTL_CHECK; j++) {
1383 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1384 if ((temp & MIU_TA_CTL_BUSY) == 0)
1385 break;
1386 }
1387
1388 if (j >= MAX_CTL_CHECK) {
1389 if (printk_ratelimit())
1390 dev_err(&ha->pdev->dev,
7c3df132 1391 "failed to write through agent.\n");
77e334d2
GM		 1392 ret = -1;
1393 break;
1394 }
1395 }
1396
1397 return ret;
1398}
1399
1400static int
a9083016
GM		 1401qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1402{
1403 int i;
1404 long size = 0;
9c2b2975
HZ		 1405 long flashaddr = ha->flt_region_bootload << 2;
1406 long memaddr = BOOTLD_START;
a9083016
GM		 1407 u64 data;
1408 u32 high, low;
1409 size = (IMAGE_START - BOOTLD_START) / 8;
1410
1411 for (i = 0; i < size; i++) {
1412 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1413 (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1414 return -1;
1415 }
1416 data = ((u64)high << 32) | low ;
1417 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1418 flashaddr += 8;
1419 memaddr += 8;
1420
1421 if (i % 0x1000 == 0)
1422 msleep(1);
1423 }
1424 udelay(100);
1425 read_lock(&ha->hw_lock);
3711333d
GM		 1426 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1427 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
a9083016
GM		 1428 read_unlock(&ha->hw_lock);
1429 return 0;
1430}
1431
1432int
1433qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1434 u64 off, void *data, int size)
1435{
1436 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1437 int shift_amount;
1438 uint32_t temp;
1439 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1440
1441 /*
1442 * If not MN, go check for MS or invalid.
1443 */
1444
1445 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1446 mem_crb = QLA82XX_CRB_QDR_NET;
1447 else {
1448 mem_crb = QLA82XX_CRB_DDR_NET;
1449 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1450 return qla82xx_pci_mem_read_direct(ha,
1451 off, data, size);
1452 }
1453
3711333d
GM		 1454 off8 = off & 0xfffffff0;
1455 off0[0] = off & 0xf;
1456 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1457 shift_amount = 4;
a9083016
GM		 1458 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1459 off0[1] = 0;
1460 sz[1] = size - sz[0];
1461
a9083016
GM		 1462 for (i = 0; i < loop; i++) {
1463 temp = off8 + (i << shift_amount);
1464 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1465 temp = 0;
1466 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1467 temp = MIU_TA_CTL_ENABLE;
1468 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1469 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1470 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1471
1472 for (j = 0; j < MAX_CTL_CHECK; j++) {
1473 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1474 if ((temp & MIU_TA_CTL_BUSY) == 0)
1475 break;
1476 }
1477
1478 if (j >= MAX_CTL_CHECK) {
1479 if (printk_ratelimit())
1480 dev_err(&ha->pdev->dev,
7c3df132 1481 "failed to read through agent.\n");
a9083016
GM		 1482 break;
1483 }
1484
1485 start = off0[i] >> 2;
1486 end = (off0[i] + sz[i] - 1) >> 2;
1487 for (k = start; k <= end; k++) {
1488 temp = qla82xx_rd_32(ha,
1489 mem_crb + MIU_TEST_AGT_RDDATA(k));
1490 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1491 }
1492 }
1493
a9083016
GM		 1494 if (j >= MAX_CTL_CHECK)
1495 return -1;
1496
1497 if ((off0[0] & 7) == 0) {
1498 val = word[0];
1499 } else {
1500 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1501 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1502 }
1503
1504 switch (size) {
1505 case 1:
1506 *(uint8_t *)data = val;
1507 break;
1508 case 2:
1509 *(uint16_t *)data = val;
1510 break;
1511 case 4:
1512 *(uint32_t *)data = val;
1513 break;
1514 case 8:
1515 *(uint64_t *)data = val;
1516 break;
1517 }
1518 return 0;
1519}
1520
a9083016 1521
9c2b2975
HZ		 1522static struct qla82xx_uri_table_desc *
1523qla82xx_get_table_desc(const u8 *unirom, int section)
1524{
1525 uint32_t i;
1526 struct qla82xx_uri_table_desc *directory =
1527 (struct qla82xx_uri_table_desc *)&unirom[0];
1528 __le32 offset;
1529 __le32 tab_type;
1530 __le32 entries = cpu_to_le32(directory->num_entries);
1531
1532 for (i = 0; i < entries; i++) {
1533 offset = cpu_to_le32(directory->findex) +
1534 (i * cpu_to_le32(directory->entry_size));
1535 tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1536
1537 if (tab_type == section)
1538 return (struct qla82xx_uri_table_desc *)&unirom[offset];
1539 }
1540
1541 return NULL;
1542}
1543
1544static struct qla82xx_uri_data_desc *
1545qla82xx_get_data_desc(struct qla_hw_data *ha,
1546 u32 section, u32 idx_offset)
1547{
1548 const u8 *unirom = ha->hablob->fw->data;
1549 int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1550 struct qla82xx_uri_table_desc *tab_desc = NULL;
1551 __le32 offset;
1552
1553 tab_desc = qla82xx_get_table_desc(unirom, section);
1554 if (!tab_desc)
1555 return NULL;
1556
1557 offset = cpu_to_le32(tab_desc->findex) +
1558 (cpu_to_le32(tab_desc->entry_size) * idx);
1559
1560 return (struct qla82xx_uri_data_desc *)&unirom[offset];
1561}
1562
1563static u8 *
1564qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1565{
1566 u32 offset = BOOTLD_START;
1567 struct qla82xx_uri_data_desc *uri_desc = NULL;
1568
1569 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1570 uri_desc = qla82xx_get_data_desc(ha,
1571 QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1572 if (uri_desc)
1573 offset = cpu_to_le32(uri_desc->findex);
1574 }
1575
1576 return (u8 *)&ha->hablob->fw->data[offset];
1577}
1578
1579static __le32
1580qla82xx_get_fw_size(struct qla_hw_data *ha)
1581{
1582 struct qla82xx_uri_data_desc *uri_desc = NULL;
1583
1584 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1585 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1586 QLA82XX_URI_FIRMWARE_IDX_OFF);
1587 if (uri_desc)
1588 return cpu_to_le32(uri_desc->size);
1589 }
1590
1591 return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1592}
1593
1594static u8 *
1595qla82xx_get_fw_offs(struct qla_hw_data *ha)
1596{
1597 u32 offset = IMAGE_START;
1598 struct qla82xx_uri_data_desc *uri_desc = NULL;
1599
1600 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1601 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1602 QLA82XX_URI_FIRMWARE_IDX_OFF);
1603 if (uri_desc)
1604 offset = cpu_to_le32(uri_desc->findex);
1605 }
1606
1607 return (u8 *)&ha->hablob->fw->data[offset];
1608}
1609
a9083016
GM		 1610/* PCI related functions */
1611char *
1612qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
1613{
1614 int pcie_reg;
1615 struct qla_hw_data *ha = vha->hw;
1616 char lwstr[6];
1617 uint16_t lnk;
1618
1619 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1620 pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
1621 ha->link_width = (lnk >> 4) & 0x3f;
1622
1623 strcpy(str, "PCIe (");
1624 strcat(str, "2.5Gb/s ");
1625 snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
1626 strcat(str, lwstr);
1627 return str;
1628}
1629
1630int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1631{
1632 unsigned long val = 0;
1633 u32 control;
1634
1635 switch (region) {
1636 case 0:
1637 val = 0;
1638 break;
1639 case 1:
1640 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1641 val = control + QLA82XX_MSIX_TBL_SPACE;
1642 break;
1643 }
1644 return val;
1645}
1646
a9083016
GM		 1647
1648int
1649qla82xx_iospace_config(struct qla_hw_data *ha)
1650{
1651 uint32_t len = 0;
1652
1653 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
7c3df132
SK		 1654 ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1655 "Failed to reserver selected regions.\n");
a9083016
GM		 1656 goto iospace_error_exit;
1657 }
1658
1659 /* Use MMIO operations for all accesses. */
1660 if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
7c3df132
SK		 1661 ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1662 "Region #0 not an MMIO resource, aborting.\n");
a9083016
GM		 1663 goto iospace_error_exit;
1664 }
1665
1666 len = pci_resource_len(ha->pdev, 0);
1667 ha->nx_pcibase =
1668 (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1669 if (!ha->nx_pcibase) {
7c3df132
SK		 1670 ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1671 "Cannot remap pcibase MMIO, aborting.\n");
a9083016
GM		 1672 pci_release_regions(ha->pdev);
1673 goto iospace_error_exit;
1674 }
1675
1676 /* Mapping of IO base pointer */
1677 ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1678 0xbc000 + (ha->pdev->devfn << 11));
1679
1680 if (!ql2xdbwr) {
1681 ha->nxdb_wr_ptr =
1682 (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1683 (ha->pdev->devfn << 12)), 4);
1684 if (!ha->nxdb_wr_ptr) {
7c3df132
SK		 1685 ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1686 "Cannot remap MMIO, aborting.\n");
a9083016
GM		 1687 pci_release_regions(ha->pdev);
1688 goto iospace_error_exit;
1689 }
1690
1691 /* Mapping of IO base pointer,
1692 * door bell read and write pointer
1693 */
1694 ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1695 (ha->pdev->devfn * 8);
1696 } else {
1697 ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1698 QLA82XX_CAMRAM_DB1 :
1699 QLA82XX_CAMRAM_DB2);
1700 }
1701
1702 ha->max_req_queues = ha->max_rsp_queues = 1;
1703 ha->msix_count = ha->max_rsp_queues + 1;
7c3df132
SK		 1704 ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1705 "nx_pci_base=%p iobase=%p "
1706 "max_req_queues=%d msix_count=%d.\n",
1707 ha->nx_pcibase, ha->iobase,
1708 ha->max_req_queues, ha->msix_count);
1709 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1710 "nx_pci_base=%p iobase=%p "
1711 "max_req_queues=%d msix_count=%d.\n",
1712 ha->nx_pcibase, ha->iobase,
1713 ha->max_req_queues, ha->msix_count);
a9083016
GM		 1714 return 0;
1715
1716iospace_error_exit:
1717 return -ENOMEM;
1718}
1719
1720/* GS related functions */
1721
1722/* Initialization related functions */
1723
1724/**
1725 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1726 * @ha: HA context
1727 *
1728 * Returns 0 on success.
1729*/
1730int
1731qla82xx_pci_config(scsi_qla_host_t *vha)
1732{
1733 struct qla_hw_data *ha = vha->hw;
1734 int ret;
1735
1736 pci_set_master(ha->pdev);
1737 ret = pci_set_mwi(ha->pdev);
1738 ha->chip_revision = ha->pdev->revision;
7c3df132
SK		 1739 ql_dbg(ql_dbg_init, vha, 0x0043,
1740 "Chip revision:%ld.\n",
1741 ha->chip_revision);
a9083016
GM		 1742 return 0;
1743}
1744
1745/**
1746 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1747 * @ha: HA context
1748 *
1749 * Returns 0 on success.
1750 */
1751void
1752qla82xx_reset_chip(scsi_qla_host_t *vha)
1753{
1754 struct qla_hw_data *ha = vha->hw;
1755 ha->isp_ops->disable_intrs(ha);
1756}
1757
1758void qla82xx_config_rings(struct scsi_qla_host *vha)
1759{
1760 struct qla_hw_data *ha = vha->hw;
1761 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1762 struct init_cb_81xx *icb;
1763 struct req_que *req = ha->req_q_map[0];
1764 struct rsp_que *rsp = ha->rsp_q_map[0];
1765
1766 /* Setup ring parameters in initialization control block. */
1767 icb = (struct init_cb_81xx *)ha->init_cb;
1768 icb->request_q_outpointer = __constant_cpu_to_le16(0);
1769 icb->response_q_inpointer = __constant_cpu_to_le16(0);
1770 icb->request_q_length = cpu_to_le16(req->length);
1771 icb->response_q_length = cpu_to_le16(rsp->length);
1772 icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1773 icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1774 icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1775 icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1776
a9083016
GM		 1777 WRT_REG_DWORD((unsigned long __iomem *)&reg->req_q_out[0], 0);
1778 WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_in[0], 0);
1779 WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_out[0], 0);
1780}
1781
f1af6208
GM		 1782void qla82xx_reset_adapter(struct scsi_qla_host *vha)
1783{
1784 struct qla_hw_data *ha = vha->hw;
1785 vha->flags.online = 0;
1786 qla2x00_try_to_stop_firmware(vha);
1787 ha->isp_ops->disable_intrs(ha);
1788}
1789
77e334d2
GM		 1790static int
1791qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
a9083016
GM		 1792{
1793 u64 *ptr64;
1794 u32 i, flashaddr, size;
1795 __le64 data;
1796
1797 size = (IMAGE_START - BOOTLD_START) / 8;
1798
9c2b2975 1799 ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
a9083016
GM		 1800 flashaddr = BOOTLD_START;
1801
1802 for (i = 0; i < size; i++) {
1803 data = cpu_to_le64(ptr64[i]);
9c2b2975
HZ		 1804 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1805 return -EIO;
a9083016
GM		 1806 flashaddr += 8;
1807 }
1808
a9083016 1809 flashaddr = FLASH_ADDR_START;
9c2b2975
HZ		 1810 size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1811 ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
a9083016
GM		 1812
1813 for (i = 0; i < size; i++) {
1814 data = cpu_to_le64(ptr64[i]);
1815
1816 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1817 return -EIO;
1818 flashaddr += 8;
1819 }
9c2b2975 1820 udelay(100);
a9083016
GM		 1821
1822 /* Write a magic value to CAMRAM register
1823 * at a specified offset to indicate
1824 * that all data is written and
1825 * ready for firmware to initialize.
1826 */
9c2b2975 1827 qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
a9083016 1828
9c2b2975 1829 read_lock(&ha->hw_lock);
3711333d
GM		 1830 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1831 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
9c2b2975
HZ		 1832 read_unlock(&ha->hw_lock);
1833 return 0;
1834}
1835
1836static int
1837qla82xx_set_product_offset(struct qla_hw_data *ha)
1838{
1839 struct qla82xx_uri_table_desc *ptab_desc = NULL;
1840 const uint8_t *unirom = ha->hablob->fw->data;
1841 uint32_t i;
1842 __le32 entries;
1843 __le32 flags, file_chiprev, offset;
1844 uint8_t chiprev = ha->chip_revision;
1845 /* Hardcoding mn_present flag for P3P */
1846 int mn_present = 0;
1847 uint32_t flagbit;
1848
1849 ptab_desc = qla82xx_get_table_desc(unirom,
1850 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1851 if (!ptab_desc)
1852 return -1;
1853
1854 entries = cpu_to_le32(ptab_desc->num_entries);
1855
1856 for (i = 0; i < entries; i++) {
1857 offset = cpu_to_le32(ptab_desc->findex) +
1858 (i * cpu_to_le32(ptab_desc->entry_size));
1859 flags = cpu_to_le32(*((int *)&unirom[offset] +
1860 QLA82XX_URI_FLAGS_OFF));
1861 file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1862 QLA82XX_URI_CHIP_REV_OFF));
1863
1864 flagbit = mn_present ? 1 : 2;
1865
1866 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1867 ha->file_prd_off = offset;
1868 return 0;
1869 }
1870 }
1871 return -1;
1872}
1873
1874int
1875qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1876{
1877 __le32 val;
1878 uint32_t min_size;
1879 struct qla_hw_data *ha = vha->hw;
1880 const struct firmware *fw = ha->hablob->fw;
1881
1882 ha->fw_type = fw_type;
1883
1884 if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1885 if (qla82xx_set_product_offset(ha))
1886 return -EINVAL;
1887
1888 min_size = QLA82XX_URI_FW_MIN_SIZE;
1889 } else {
1890 val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1891 if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1892 return -EINVAL;
1893
1894 min_size = QLA82XX_FW_MIN_SIZE;
1895 }
1896
1897 if (fw->size < min_size)
1898 return -EINVAL;
a9083016
GM		 1899 return 0;
1900}
1901
77e334d2
GM		 1902static int
1903qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
a9083016
GM		 1904{
1905 u32 val = 0;
1906 int retries = 60;
7c3df132 1907 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 1908
1909 do {
1910 read_lock(&ha->hw_lock);
1911 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1912 read_unlock(&ha->hw_lock);
1913
1914 switch (val) {
1915 case PHAN_INITIALIZE_COMPLETE:
1916 case PHAN_INITIALIZE_ACK:
1917 return QLA_SUCCESS;
1918 case PHAN_INITIALIZE_FAILED:
1919 break;
1920 default:
1921 break;
1922 }
7c3df132
SK		 1923 ql_log(ql_log_info, vha, 0x00a8,
1924 "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1925 val, retries);
a9083016
GM		 1926
1927 msleep(500);
1928
1929 } while (--retries);
1930
7c3df132 1931 ql_log(ql_log_fatal, vha, 0x00a9,
a9083016
GM		 1932 "Cmd Peg initialization failed: 0x%x.\n", val);
1933
a9083016
GM		 1934 val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1935 read_lock(&ha->hw_lock);
1936 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1937 read_unlock(&ha->hw_lock);
1938 return QLA_FUNCTION_FAILED;
1939}
1940
77e334d2
GM		 1941static int
1942qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
a9083016
GM		 1943{
1944 u32 val = 0;
1945 int retries = 60;
7c3df132 1946 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 1947
1948 do {
1949 read_lock(&ha->hw_lock);
1950 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1951 read_unlock(&ha->hw_lock);
1952
1953 switch (val) {
1954 case PHAN_INITIALIZE_COMPLETE:
1955 case PHAN_INITIALIZE_ACK:
1956 return QLA_SUCCESS;
1957 case PHAN_INITIALIZE_FAILED:
1958 break;
1959 default:
1960 break;
1961 }
7c3df132
SK		 1962 ql_log(ql_log_info, vha, 0x00ab,
1963 "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1964 val, retries);
a9083016
GM		 1965
1966 msleep(500);
1967
1968 } while (--retries);
1969
7c3df132
SK		 1970 ql_log(ql_log_fatal, vha, 0x00ac,
1971 "Rcv Peg initializatin failed: 0x%x.\n", val);
a9083016
GM		 1972 read_lock(&ha->hw_lock);
1973 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1974 read_unlock(&ha->hw_lock);
1975 return QLA_FUNCTION_FAILED;
1976}
1977
1978/* ISR related functions */
1979uint32_t qla82xx_isr_int_target_mask_enable[8] = {
1980 ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
1981 ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
1982 ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
1983 ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
1984};
1985
1986uint32_t qla82xx_isr_int_target_status[8] = {
1987 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
1988 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
1989 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
1990 ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
1991};
1992
1993static struct qla82xx_legacy_intr_set legacy_intr[] = \
1994 QLA82XX_LEGACY_INTR_CONFIG;
1995
1996/*
1997 * qla82xx_mbx_completion() - Process mailbox command completions.
1998 * @ha: SCSI driver HA context
1999 * @mb0: Mailbox0 register
2000 */
77e334d2 2001static void
a9083016
GM		 2002qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2003{
2004 uint16_t cnt;
2005 uint16_t __iomem *wptr;
2006 struct qla_hw_data *ha = vha->hw;
2007 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2008 wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
2009
2010 /* Load return mailbox registers. */
2011 ha->flags.mbox_int = 1;
2012 ha->mailbox_out[0] = mb0;
2013
2014 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2015 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2016 wptr++;
2017 }
2018
2019 if (ha->mcp) {
7c3df132
SK		 2020 ql_dbg(ql_dbg_async, vha, 0x5052,
2021 "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
a9083016 2022 } else {
7c3df132
SK		 2023 ql_dbg(ql_dbg_async, vha, 0x5053,
2024 "MBX pointer ERROR.\n");
a9083016
GM		 2025 }
2026}
2027
2028/*
2029 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2030 * @irq:
2031 * @dev_id: SCSI driver HA context
2032 * @regs:
2033 *
2034 * Called by system whenever the host adapter generates an interrupt.
2035 *
2036 * Returns handled flag.
2037 */
2038irqreturn_t
2039qla82xx_intr_handler(int irq, void *dev_id)
2040{
2041 scsi_qla_host_t *vha;
2042 struct qla_hw_data *ha;
2043 struct rsp_que *rsp;
2044 struct device_reg_82xx __iomem *reg;
2045 int status = 0, status1 = 0;
2046 unsigned long flags;
2047 unsigned long iter;
7c3df132 2048 uint32_t stat = 0;
a9083016
GM		 2049 uint16_t mb[4];
2050
2051 rsp = (struct rsp_que *) dev_id;
2052 if (!rsp) {
2053 printk(KERN_INFO
7c3df132 2054 "%s(): NULL response queue pointer.\n", __func__);
a9083016
GM		 2055 return IRQ_NONE;
2056 }
2057 ha = rsp->hw;
2058
2059 if (!ha->flags.msi_enabled) {
2060 status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2061 if (!(status & ha->nx_legacy_intr.int_vec_bit))
2062 return IRQ_NONE;
2063
2064 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2065 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2066 return IRQ_NONE;
2067 }
2068
2069 /* clear the interrupt */
2070 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2071
2072 /* read twice to ensure write is flushed */
2073 qla82xx_rd_32(ha, ISR_INT_VECTOR);
2074 qla82xx_rd_32(ha, ISR_INT_VECTOR);
2075
2076 reg = &ha->iobase->isp82;
2077
2078 spin_lock_irqsave(&ha->hardware_lock, flags);
2079 vha = pci_get_drvdata(ha->pdev);
2080 for (iter = 1; iter--; ) {
2081
2082 if (RD_REG_DWORD(&reg->host_int)) {
2083 stat = RD_REG_DWORD(&reg->host_status);
a9083016
GM		 2084
2085 switch (stat & 0xff) {
2086 case 0x1:
2087 case 0x2:
2088 case 0x10:
2089 case 0x11:
2090 qla82xx_mbx_completion(vha, MSW(stat));
2091 status |= MBX_INTERRUPT;
2092 break;
2093 case 0x12:
2094 mb[0] = MSW(stat);
2095 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2096 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2097 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2098 qla2x00_async_event(vha, rsp, mb);
2099 break;
2100 case 0x13:
2101 qla24xx_process_response_queue(vha, rsp);
2102 break;
2103 default:
7c3df132
SK		 2104 ql_dbg(ql_dbg_async, vha, 0x5054,
2105 "Unrecognized interrupt type (%d).\n",
2106 stat & 0xff);
a9083016
GM		 2107 break;
2108 }
2109 }
2110 WRT_REG_DWORD(&reg->host_int, 0);
2111 }
2112 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2113 if (!ha->flags.msi_enabled)
2114 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2115
2116#ifdef QL_DEBUG_LEVEL_17
2117 if (!irq && ha->flags.eeh_busy)
7c3df132
SK		 2118 ql_log(ql_log_warn, vha, 0x503d,
2119 "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
a9083016
GM		 2120 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2121#endif
2122
2123 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2124 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2125 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2126 complete(&ha->mbx_intr_comp);
2127 }
2128 return IRQ_HANDLED;
2129}
2130
2131irqreturn_t
2132qla82xx_msix_default(int irq, void *dev_id)
2133{
2134 scsi_qla_host_t *vha;
2135 struct qla_hw_data *ha;
2136 struct rsp_que *rsp;
2137 struct device_reg_82xx __iomem *reg;
2138 int status = 0;
2139 unsigned long flags;
7c3df132 2140 uint32_t stat = 0;
a9083016
GM		 2141 uint16_t mb[4];
2142
2143 rsp = (struct rsp_que *) dev_id;
2144 if (!rsp) {
2145 printk(KERN_INFO
7c3df132 2146 "%s(): NULL response queue pointer.\n", __func__);
a9083016
GM		 2147 return IRQ_NONE;
2148 }
2149 ha = rsp->hw;
2150
2151 reg = &ha->iobase->isp82;
2152
2153 spin_lock_irqsave(&ha->hardware_lock, flags);
2154 vha = pci_get_drvdata(ha->pdev);
2155 do {
2156 if (RD_REG_DWORD(&reg->host_int)) {
2157 stat = RD_REG_DWORD(&reg->host_status);
a9083016
GM		 2158
2159 switch (stat & 0xff) {
2160 case 0x1:
2161 case 0x2:
2162 case 0x10:
2163 case 0x11:
2164 qla82xx_mbx_completion(vha, MSW(stat));
2165 status |= MBX_INTERRUPT;
2166 break;
2167 case 0x12:
2168 mb[0] = MSW(stat);
2169 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2170 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2171 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2172 qla2x00_async_event(vha, rsp, mb);
2173 break;
2174 case 0x13:
2175 qla24xx_process_response_queue(vha, rsp);
2176 break;
2177 default:
7c3df132
SK		 2178 ql_dbg(ql_dbg_async, vha, 0x5041,
2179 "Unrecognized interrupt type (%d).\n",
2180 stat & 0xff);
a9083016
GM		 2181 break;
2182 }
2183 }
2184 WRT_REG_DWORD(&reg->host_int, 0);
2185 } while (0);
2186
2187 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2188
2189#ifdef QL_DEBUG_LEVEL_17
2190 if (!irq && ha->flags.eeh_busy)
7c3df132
SK		 2191 ql_log(ql_log_warn, vha, 0x5044,
2192 "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2193 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
a9083016
GM		 2194#endif
2195
2196 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2197 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2198 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2199 complete(&ha->mbx_intr_comp);
2200 }
2201 return IRQ_HANDLED;
2202}
2203
2204irqreturn_t
2205qla82xx_msix_rsp_q(int irq, void *dev_id)
2206{
2207 scsi_qla_host_t *vha;
2208 struct qla_hw_data *ha;
2209 struct rsp_que *rsp;
2210 struct device_reg_82xx __iomem *reg;
3553d343 2211 unsigned long flags;
a9083016
GM		 2212
2213 rsp = (struct rsp_que *) dev_id;
2214 if (!rsp) {
2215 printk(KERN_INFO
7c3df132 2216 "%s(): NULL response queue pointer.\n", __func__);
a9083016
GM		 2217 return IRQ_NONE;
2218 }
2219
2220 ha = rsp->hw;
2221 reg = &ha->iobase->isp82;
3553d343 2222 spin_lock_irqsave(&ha->hardware_lock, flags);
a9083016
GM		 2223 vha = pci_get_drvdata(ha->pdev);
2224 qla24xx_process_response_queue(vha, rsp);
2225 WRT_REG_DWORD(&reg->host_int, 0);
3553d343 2226 spin_unlock_irqrestore(&ha->hardware_lock, flags);
a9083016
GM		 2227 return IRQ_HANDLED;
2228}
2229
2230void
2231qla82xx_poll(int irq, void *dev_id)
2232{
2233 scsi_qla_host_t *vha;
2234 struct qla_hw_data *ha;
2235 struct rsp_que *rsp;
2236 struct device_reg_82xx __iomem *reg;
2237 int status = 0;
2238 uint32_t stat;
2239 uint16_t mb[4];
2240 unsigned long flags;
2241
2242 rsp = (struct rsp_que *) dev_id;
2243 if (!rsp) {
2244 printk(KERN_INFO
7c3df132 2245 "%s(): NULL response queue pointer.\n", __func__);
a9083016
GM		 2246 return;
2247 }
2248 ha = rsp->hw;
2249
2250 reg = &ha->iobase->isp82;
2251 spin_lock_irqsave(&ha->hardware_lock, flags);
2252 vha = pci_get_drvdata(ha->pdev);
2253
2254 if (RD_REG_DWORD(&reg->host_int)) {
2255 stat = RD_REG_DWORD(&reg->host_status);
2256 switch (stat & 0xff) {
2257 case 0x1:
2258 case 0x2:
2259 case 0x10:
2260 case 0x11:
2261 qla82xx_mbx_completion(vha, MSW(stat));
2262 status |= MBX_INTERRUPT;
2263 break;
2264 case 0x12:
2265 mb[0] = MSW(stat);
2266 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2267 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2268 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2269 qla2x00_async_event(vha, rsp, mb);
2270 break;
2271 case 0x13:
2272 qla24xx_process_response_queue(vha, rsp);
2273 break;
2274 default:
7c3df132
SK		 2275 ql_dbg(ql_dbg_p3p, vha, 0xb013,
2276 "Unrecognized interrupt type (%d).\n",
2277 stat * 0xff);
a9083016
GM		 2278 break;
2279 }
2280 }
2281 WRT_REG_DWORD(&reg->host_int, 0);
2282 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2283}
2284
2285void
2286qla82xx_enable_intrs(struct qla_hw_data *ha)
2287{
2288 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2289 qla82xx_mbx_intr_enable(vha);
2290 spin_lock_irq(&ha->hardware_lock);
2291 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2292 spin_unlock_irq(&ha->hardware_lock);
2293 ha->interrupts_on = 1;
2294}
2295
2296void
2297qla82xx_disable_intrs(struct qla_hw_data *ha)
2298{
2299 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2300 qla82xx_mbx_intr_disable(vha);
2301 spin_lock_irq(&ha->hardware_lock);
2302 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2303 spin_unlock_irq(&ha->hardware_lock);
2304 ha->interrupts_on = 0;
2305}
2306
2307void qla82xx_init_flags(struct qla_hw_data *ha)
2308{
2309 struct qla82xx_legacy_intr_set *nx_legacy_intr;
2310
2311 /* ISP 8021 initializations */
2312 rwlock_init(&ha->hw_lock);
2313 ha->qdr_sn_window = -1;
2314 ha->ddr_mn_window = -1;
2315 ha->curr_window = 255;
2316 ha->portnum = PCI_FUNC(ha->pdev->devfn);
2317 nx_legacy_intr = &legacy_intr[ha->portnum];
2318 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2319 ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2320 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2321 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2322}
2323
a5b36321 2324inline void
a9083016
GM		 2325qla82xx_set_drv_active(scsi_qla_host_t *vha)
2326{
2327 uint32_t drv_active;
2328 struct qla_hw_data *ha = vha->hw;
2329
2330 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2331
2332 /* If reset value is all FF's, initialize DRV_ACTIVE */
2333 if (drv_active == 0xffffffff) {
77e334d2
GM		 2334 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2335 QLA82XX_DRV_NOT_ACTIVE);
a9083016
GM		 2336 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2337 }
77e334d2 2338 drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
a9083016
GM		 2339 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2340}
2341
2342inline void
2343qla82xx_clear_drv_active(struct qla_hw_data *ha)
2344{
2345 uint32_t drv_active;
2346
2347 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
77e334d2 2348 drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
a9083016
GM		 2349 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2350}
2351
2352static inline int
2353qla82xx_need_reset(struct qla_hw_data *ha)
2354{
2355 uint32_t drv_state;
2356 int rval;
2357
2358 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
77e334d2 2359 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
a9083016
GM		 2360 return rval;
2361}
2362
2363static inline void
2364qla82xx_set_rst_ready(struct qla_hw_data *ha)
2365{
2366 uint32_t drv_state;
2367 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2368
2369 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2370
2371 /* If reset value is all FF's, initialize DRV_STATE */
2372 if (drv_state == 0xffffffff) {
77e334d2 2373 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
a9083016
GM		 2374 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2375 }
2376 drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
7c3df132
SK		 2377 ql_log(ql_log_info, vha, 0x00bb,
2378 "drv_state = 0x%x.\n", drv_state);
a9083016
GM		 2379 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2380}
2381
2382static inline void
2383qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2384{
2385 uint32_t drv_state;
2386
2387 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2388 drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2389 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2390}
2391
2392static inline void
2393qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2394{
2395 uint32_t qsnt_state;
2396
2397 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2398 qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2399 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2400}
2401
579d12b5
SK		 2402void
2403qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2404{
2405 struct qla_hw_data *ha = vha->hw;
2406 uint32_t qsnt_state;
2407
2408 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2409 qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2410 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2411}
2412
77e334d2
GM		 2413static int
2414qla82xx_load_fw(scsi_qla_host_t *vha)
a9083016
GM		 2415{
2416 int rst;
2417 struct fw_blob *blob;
2418 struct qla_hw_data *ha = vha->hw;
2419
a9083016 2420 if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
7c3df132
SK		 2421 ql_log(ql_log_fatal, vha, 0x009f,
2422 "Error during CRB initialization.\n");
a9083016
GM		 2423 return QLA_FUNCTION_FAILED;
2424 }
2425 udelay(500);
2426
2427 /* Bring QM and CAMRAM out of reset */
2428 rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2429 rst &= ~((1 << 28) | (1 << 24));
2430 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2431
2432 /*
2433 * FW Load priority:
2434 * 1) Operational firmware residing in flash.
2435 * 2) Firmware via request-firmware interface (.bin file).
2436 */
2437 if (ql2xfwloadbin == 2)
2438 goto try_blob_fw;
2439
7c3df132
SK		 2440 ql_log(ql_log_info, vha, 0x00a0,
2441 "Attempting to load firmware from flash.\n");
a9083016
GM		 2442
2443 if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
7c3df132
SK		 2444 ql_log(ql_log_info, vha, 0x00a1,
2445 "Firmware loaded successully from flash.\n");
a9083016 2446 return QLA_SUCCESS;
875efad7 2447 } else {
7c3df132
SK		 2448 ql_log(ql_log_warn, vha, 0x0108,
2449 "Firmware load from flash failed.\n");
a9083016 2450 }
875efad7 2451
a9083016 2452try_blob_fw:
7c3df132
SK		 2453 ql_log(ql_log_info, vha, 0x00a2,
2454 "Attempting to load firmware from blob.\n");
a9083016
GM		 2455
2456 /* Load firmware blob. */
2457 blob = ha->hablob = qla2x00_request_firmware(vha);
2458 if (!blob) {
7c3df132
SK		 2459 ql_log(ql_log_fatal, vha, 0x00a3,
2460 "Firmware image not preset.\n");
a9083016
GM		 2461 goto fw_load_failed;
2462 }
2463
9c2b2975
HZ		 2464 /* Validating firmware blob */
2465 if (qla82xx_validate_firmware_blob(vha,
2466 QLA82XX_FLASH_ROMIMAGE)) {
2467 /* Fallback to URI format */
2468 if (qla82xx_validate_firmware_blob(vha,
2469 QLA82XX_UNIFIED_ROMIMAGE)) {
7c3df132
SK		 2470 ql_log(ql_log_fatal, vha, 0x00a4,
2471 "No valid firmware image found.\n");
9c2b2975
HZ		 2472 return QLA_FUNCTION_FAILED;
2473 }
2474 }
2475
a9083016 2476 if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
7c3df132
SK		 2477 ql_log(ql_log_info, vha, 0x00a5,
2478 "Firmware loaded successfully from binary blob.\n");
a9083016
GM		 2479 return QLA_SUCCESS;
2480 } else {
7c3df132
SK		 2481 ql_log(ql_log_fatal, vha, 0x00a6,
2482 "Firmware load failed for binary blob.\n");
a9083016
GM		 2483 blob->fw = NULL;
2484 blob = NULL;
2485 goto fw_load_failed;
2486 }
2487 return QLA_SUCCESS;
2488
2489fw_load_failed:
2490 return QLA_FUNCTION_FAILED;
2491}
2492
a5b36321 2493int
a9083016
GM		 2494qla82xx_start_firmware(scsi_qla_host_t *vha)
2495{
2496 int pcie_cap;
2497 uint16_t lnk;
2498 struct qla_hw_data *ha = vha->hw;
2499
2500 /* scrub dma mask expansion register */
77e334d2 2501 qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
a9083016 2502
3711333d
GM		 2503 /* Put both the PEG CMD and RCV PEG to default state
2504 * of 0 before resetting the hardware
2505 */
2506 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2507 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2508
a9083016
GM		 2509 /* Overwrite stale initialization register values */
2510 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2511 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2512
2513 if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
7c3df132
SK		 2514 ql_log(ql_log_fatal, vha, 0x00a7,
2515 "Error trying to start fw.\n");
a9083016
GM		 2516 return QLA_FUNCTION_FAILED;
2517 }
2518
2519 /* Handshake with the card before we register the devices. */
2520 if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
7c3df132
SK		 2521 ql_log(ql_log_fatal, vha, 0x00aa,
2522 "Error during card handshake.\n");
a9083016
GM		 2523 return QLA_FUNCTION_FAILED;
2524 }
2525
2526 /* Negotiated Link width */
2527 pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
2528 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
2529 ha->link_width = (lnk >> 4) & 0x3f;
2530
2531 /* Synchronize with Receive peg */
2532 return qla82xx_check_rcvpeg_state(ha);
2533}
2534
2535static inline int
2536qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
2537 uint16_t tot_dsds)
2538{
2539 uint32_t *cur_dsd = NULL;
2540 scsi_qla_host_t *vha;
2541 struct qla_hw_data *ha;
2542 struct scsi_cmnd *cmd;
2543 struct scatterlist *cur_seg;
2544 uint32_t *dsd_seg;
2545 void *next_dsd;
2546 uint8_t avail_dsds;
2547 uint8_t first_iocb = 1;
2548 uint32_t dsd_list_len;
2549 struct dsd_dma *dsd_ptr;
2550 struct ct6_dsd *ctx;
2551
2552 cmd = sp->cmd;
2553
2554 /* Update entry type to indicate Command Type 3 IOCB */
2555 *((uint32_t *)(&cmd_pkt->entry_type)) =
2556 __constant_cpu_to_le32(COMMAND_TYPE_6);
2557
2558 /* No data transfer */
2559 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
2560 cmd_pkt->byte_count = __constant_cpu_to_le32(0);
2561 return 0;
2562 }
2563
2564 vha = sp->fcport->vha;
2565 ha = vha->hw;
2566
2567 /* Set transfer direction */
2568 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
2569 cmd_pkt->control_flags =
2570 __constant_cpu_to_le16(CF_WRITE_DATA);
2571 ha->qla_stats.output_bytes += scsi_bufflen(cmd);
2572 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
2573 cmd_pkt->control_flags =
2574 __constant_cpu_to_le16(CF_READ_DATA);
2575 ha->qla_stats.input_bytes += scsi_bufflen(cmd);
2576 }
2577
2578 cur_seg = scsi_sglist(cmd);
2579 ctx = sp->ctx;
2580
2581 while (tot_dsds) {
2582 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
2583 QLA_DSDS_PER_IOCB : tot_dsds;
2584 tot_dsds -= avail_dsds;
2585 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
2586
2587 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
2588 struct dsd_dma, list);
2589 next_dsd = dsd_ptr->dsd_addr;
2590 list_del(&dsd_ptr->list);
2591 ha->gbl_dsd_avail--;
2592 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
2593 ctx->dsd_use_cnt++;
2594 ha->gbl_dsd_inuse++;
2595
2596 if (first_iocb) {
2597 first_iocb = 0;
2598 dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
2599 *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2600 *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
fa96d927 2601 *dsd_seg++ = cpu_to_le32(dsd_list_len);
a9083016
GM		 2602 } else {
2603 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2604 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
fa96d927 2605 *cur_dsd++ = cpu_to_le32(dsd_list_len);
a9083016
GM		 2606 }
2607 cur_dsd = (uint32_t *)next_dsd;
2608 while (avail_dsds) {
2609 dma_addr_t sle_dma;
2610
2611 sle_dma = sg_dma_address(cur_seg);
2612 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2613 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2614 *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
aa5cbf8a 2615 cur_seg = sg_next(cur_seg);
a9083016
GM		 2616 avail_dsds--;
2617 }
2618 }
2619
2620 /* Null termination */
2621 *cur_dsd++ = 0;
2622 *cur_dsd++ = 0;
2623 *cur_dsd++ = 0;
2624 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
2625 return 0;
2626}
2627
2628/*
2629 * qla82xx_calc_dsd_lists() - Determine number of DSD list required
2630 * for Command Type 6.
2631 *
2632 * @dsds: number of data segment decriptors needed
2633 *
2634 * Returns the number of dsd list needed to store @dsds.
2635 */
2636inline uint16_t
2637qla82xx_calc_dsd_lists(uint16_t dsds)
2638{
2639 uint16_t dsd_lists = 0;
2640
2641 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
2642 if (dsds % QLA_DSDS_PER_IOCB)
2643 dsd_lists++;
2644 return dsd_lists;
2645}
2646
2647/*
2648 * qla82xx_start_scsi() - Send a SCSI command to the ISP
2649 * @sp: command to send to the ISP
2650 *
25985edc 2651 * Returns non-zero if a failure occurred, else zero.
a9083016
GM		 2652 */
2653int
2654qla82xx_start_scsi(srb_t *sp)
2655{
2656 int ret, nseg;
2657 unsigned long flags;
2658 struct scsi_cmnd *cmd;
2659 uint32_t *clr_ptr;
2660 uint32_t index;
2661 uint32_t handle;
2662 uint16_t cnt;
2663 uint16_t req_cnt;
2664 uint16_t tot_dsds;
2665 struct device_reg_82xx __iomem *reg;
2666 uint32_t dbval;
2667 uint32_t *fcp_dl;
2668 uint8_t additional_cdb_len;
2669 struct ct6_dsd *ctx;
2670 struct scsi_qla_host *vha = sp->fcport->vha;
2671 struct qla_hw_data *ha = vha->hw;
2672 struct req_que *req = NULL;
2673 struct rsp_que *rsp = NULL;
ff2fc42e 2674 char tag[2];
a9083016
GM		 2675
2676 /* Setup device pointers. */
2677 ret = 0;
2678 reg = &ha->iobase->isp82;
2679 cmd = sp->cmd;
2680 req = vha->req;
2681 rsp = ha->rsp_q_map[0];
2682
2683 /* So we know we haven't pci_map'ed anything yet */
2684 tot_dsds = 0;
2685
2686 dbval = 0x04 | (ha->portnum << 5);
2687
2688 /* Send marker if required */
2689 if (vha->marker_needed != 0) {
2690 if (qla2x00_marker(vha, req,
7c3df132
SK		 2691 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
2692 ql_log(ql_log_warn, vha, 0x300c,
2693 "qla2x00_marker failed for cmd=%p.\n", cmd);
a9083016 2694 return QLA_FUNCTION_FAILED;
7c3df132 2695 }
a9083016
GM		 2696 vha->marker_needed = 0;
2697 }
2698
2699 /* Acquire ring specific lock */
2700 spin_lock_irqsave(&ha->hardware_lock, flags);
2701
2702 /* Check for room in outstanding command list. */
2703 handle = req->current_outstanding_cmd;
2704 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2705 handle++;
2706 if (handle == MAX_OUTSTANDING_COMMANDS)
2707 handle = 1;
2708 if (!req->outstanding_cmds[handle])
2709 break;
2710 }
2711 if (index == MAX_OUTSTANDING_COMMANDS)
2712 goto queuing_error;
2713
2714 /* Map the sg table so we have an accurate count of sg entries needed */
2715 if (scsi_sg_count(cmd)) {
2716 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2717 scsi_sg_count(cmd), cmd->sc_data_direction);
2718 if (unlikely(!nseg))
2719 goto queuing_error;
2720 } else
2721 nseg = 0;
2722
2723 tot_dsds = nseg;
2724
2725 if (tot_dsds > ql2xshiftctondsd) {
2726 struct cmd_type_6 *cmd_pkt;
2727 uint16_t more_dsd_lists = 0;
2728 struct dsd_dma *dsd_ptr;
2729 uint16_t i;
2730
2731 more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds);
7c3df132
SK		 2732 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
2733 ql_dbg(ql_dbg_io, vha, 0x300d,
2734 "Num of DSD list %d is than %d for cmd=%p.\n",
2735 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
2736 cmd);
a9083016 2737 goto queuing_error;
7c3df132 2738 }
a9083016
GM		 2739
2740 if (more_dsd_lists <= ha->gbl_dsd_avail)
2741 goto sufficient_dsds;
2742 else
2743 more_dsd_lists -= ha->gbl_dsd_avail;
2744
2745 for (i = 0; i < more_dsd_lists; i++) {
2746 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
7c3df132
SK		 2747 if (!dsd_ptr) {
2748 ql_log(ql_log_fatal, vha, 0x300e,
2749 "Failed to allocate memory for dsd_dma "
2750 "for cmd=%p.\n", cmd);
a9083016 2751 goto queuing_error;
7c3df132 2752 }
a9083016
GM		 2753
2754 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
2755 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
2756 if (!dsd_ptr->dsd_addr) {
2757 kfree(dsd_ptr);
7c3df132
SK		 2758 ql_log(ql_log_fatal, vha, 0x300f,
2759 "Failed to allocate memory for dsd_addr "
2760 "for cmd=%p.\n", cmd);
a9083016
GM		 2761 goto queuing_error;
2762 }
2763 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
2764 ha->gbl_dsd_avail++;
2765 }
2766
2767sufficient_dsds:
2768 req_cnt = 1;
2769
1bd58b89
GM		 2770 if (req->cnt < (req_cnt + 2)) {
2771 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2772 &reg->req_q_out[0]);
2773 if (req->ring_index < cnt)
2774 req->cnt = cnt - req->ring_index;
2775 else
2776 req->cnt = req->length -
2777 (req->ring_index - cnt);
2778 }
2779
2780 if (req->cnt < (req_cnt + 2))
2781 goto queuing_error;
2782
a9083016
GM		 2783 ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
2784 if (!sp->ctx) {
7c3df132
SK		 2785 ql_log(ql_log_fatal, vha, 0x3010,
2786 "Failed to allocate ctx for cmd=%p.\n", cmd);
a9083016
GM		 2787 goto queuing_error;
2788 }
2789 memset(ctx, 0, sizeof(struct ct6_dsd));
2790 ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
2791 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
2792 if (!ctx->fcp_cmnd) {
7c3df132
SK		 2793 ql_log(ql_log_fatal, vha, 0x3011,
2794 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
a9083016
GM		 2795 goto queuing_error_fcp_cmnd;
2796 }
2797
2798 /* Initialize the DSD list and dma handle */
2799 INIT_LIST_HEAD(&ctx->dsd_list);
2800 ctx->dsd_use_cnt = 0;
2801
2802 if (cmd->cmd_len > 16) {
2803 additional_cdb_len = cmd->cmd_len - 16;
2804 if ((cmd->cmd_len % 4) != 0) {
2805 /* SCSI command bigger than 16 bytes must be
2806 * multiple of 4
2807 */
7c3df132
SK		 2808 ql_log(ql_log_warn, vha, 0x3012,
2809 "scsi cmd len %d not multiple of 4 "
2810 "for cmd=%p.\n", cmd->cmd_len, cmd);
a9083016
GM		 2811 goto queuing_error_fcp_cmnd;
2812 }
2813 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
2814 } else {
2815 additional_cdb_len = 0;
2816 ctx->fcp_cmnd_len = 12 + 16 + 4;
2817 }
2818
2819 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
2820 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2821
2822 /* Zero out remaining portion of packet. */
2823 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
2824 clr_ptr = (uint32_t *)cmd_pkt + 2;
2825 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2826 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2827
2828 /* Set NPORT-ID and LUN number*/
2829 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2830 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2831 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2832 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2833 cmd_pkt->vp_index = sp->fcport->vp_idx;
2834
2835 /* Build IOCB segments */
2836 if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
2837 goto queuing_error_fcp_cmnd;
2838
2839 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
85727e1f 2840 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
a9083016 2841
51cc9a8e
SK		 2842 /* build FCP_CMND IU */
2843 memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
2844 int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
2845 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
2846
2847 if (cmd->sc_data_direction == DMA_TO_DEVICE)
2848 ctx->fcp_cmnd->additional_cdb_len |= 1;
2849 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
2850 ctx->fcp_cmnd->additional_cdb_len |= 2;
2851
ff2fc42e
AV		 2852 /*
2853 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2854 */
2855 if (scsi_populate_tag_msg(cmd, tag)) {
2856 switch (tag[0]) {
2857 case HEAD_OF_QUEUE_TAG:
2858 ctx->fcp_cmnd->task_attribute =
2859 TSK_HEAD_OF_QUEUE;
2860 break;
2861 case ORDERED_QUEUE_TAG:
2862 ctx->fcp_cmnd->task_attribute =
2863 TSK_ORDERED;
2864 break;
2865 }
2866 }
2867
a9083016
GM		 2868 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
2869
2870 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
2871 additional_cdb_len);
2872 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
2873
2874 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
2875 cmd_pkt->fcp_cmnd_dseg_address[0] =
2876 cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
2877 cmd_pkt->fcp_cmnd_dseg_address[1] =
2878 cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
2879
2880 sp->flags |= SRB_FCP_CMND_DMA_VALID;
2881 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2882 /* Set total data segment count. */
2883 cmd_pkt->entry_count = (uint8_t)req_cnt;
2884 /* Specify response queue number where
2885 * completion should happen
2886 */
2887 cmd_pkt->entry_status = (uint8_t) rsp->id;
2888 } else {
2889 struct cmd_type_7 *cmd_pkt;
7c3df132 2890 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
a9083016
GM		 2891 if (req->cnt < (req_cnt + 2)) {
2892 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2893 &reg->req_q_out[0]);
2894 if (req->ring_index < cnt)
2895 req->cnt = cnt - req->ring_index;
2896 else
2897 req->cnt = req->length -
2898 (req->ring_index - cnt);
2899 }
2900 if (req->cnt < (req_cnt + 2))
2901 goto queuing_error;
2902
2903 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
2904 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2905
2906 /* Zero out remaining portion of packet. */
2907 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
2908 clr_ptr = (uint32_t *)cmd_pkt + 2;
2909 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2910 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2911
2912 /* Set NPORT-ID and LUN number*/
2913 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2914 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2915 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2916 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2917 cmd_pkt->vp_index = sp->fcport->vp_idx;
2918
2919 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2920 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
2921 sizeof(cmd_pkt->lun));
2922
ff2fc42e
AV		 2923 /*
2924 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2925 */
2926 if (scsi_populate_tag_msg(cmd, tag)) {
2927 switch (tag[0]) {
2928 case HEAD_OF_QUEUE_TAG:
2929 cmd_pkt->task = TSK_HEAD_OF_QUEUE;
2930 break;
2931 case ORDERED_QUEUE_TAG:
2932 cmd_pkt->task = TSK_ORDERED;
2933 break;
2934 }
2935 }
2936
a9083016
GM		 2937 /* Load SCSI command packet. */
2938 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2939 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2940
2941 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2942
2943 /* Build IOCB segments */
2944 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
2945
2946 /* Set total data segment count. */
2947 cmd_pkt->entry_count = (uint8_t)req_cnt;
2948 /* Specify response queue number where
2949 * completion should happen.
2950 */
2951 cmd_pkt->entry_status = (uint8_t) rsp->id;
2952
2953 }
2954 /* Build command packet. */
2955 req->current_outstanding_cmd = handle;
2956 req->outstanding_cmds[handle] = sp;
2957 sp->handle = handle;
2958 sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2959 req->cnt -= req_cnt;
2960 wmb();
2961
2962 /* Adjust ring index. */
2963 req->ring_index++;
2964 if (req->ring_index == req->length) {
2965 req->ring_index = 0;
2966 req->ring_ptr = req->ring;
2967 } else
2968 req->ring_ptr++;
2969
2970 sp->flags |= SRB_DMA_VALID;
2971
2972 /* Set chip new ring index. */
2973 /* write, read and verify logic */
2974 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2975 if (ql2xdbwr)
2976 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2977 else {
2978 WRT_REG_DWORD(
2979 (unsigned long __iomem *)ha->nxdb_wr_ptr,
2980 dbval);
2981 wmb();
2982 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2983 WRT_REG_DWORD(
2984 (unsigned long __iomem *)ha->nxdb_wr_ptr,
2985 dbval);
2986 wmb();
2987 }
2988 }
2989
2990 /* Manage unprocessed RIO/ZIO commands in response queue. */
2991 if (vha->flags.process_response_queue &&
2992 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2993 qla24xx_process_response_queue(vha, rsp);
2994
2995 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2996 return QLA_SUCCESS;
2997
2998queuing_error_fcp_cmnd:
2999 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3000queuing_error:
3001 if (tot_dsds)
3002 scsi_dma_unmap(cmd);
3003
3004 if (sp->ctx) {
3005 mempool_free(sp->ctx, ha->ctx_mempool);
3006 sp->ctx = NULL;
3007 }
3008 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3009
3010 return QLA_FUNCTION_FAILED;
3011}
3012
77e334d2 3013static uint32_t *
a9083016
GM		 3014qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
3015 uint32_t length)
3016{
3017 uint32_t i;
3018 uint32_t val;
3019 struct qla_hw_data *ha = vha->hw;
3020
3021 /* Dword reads to flash. */
3022 for (i = 0; i < length/4; i++, faddr += 4) {
3023 if (qla82xx_rom_fast_read(ha, faddr, &val)) {
7c3df132
SK		 3024 ql_log(ql_log_warn, vha, 0x0106,
3025 "Do ROM fast read failed.\n");
a9083016
GM		 3026 goto done_read;
3027 }
3028 dwptr[i] = __constant_cpu_to_le32(val);
3029 }
3030done_read:
3031 return dwptr;
3032}
3033
77e334d2 3034static int
a9083016
GM		 3035qla82xx_unprotect_flash(struct qla_hw_data *ha)
3036{
3037 int ret;
3038 uint32_t val;
7c3df132 3039 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 3040
3041 ret = ql82xx_rom_lock_d(ha);
3042 if (ret < 0) {
7c3df132
SK		 3043 ql_log(ql_log_warn, vha, 0xb014,
3044 "ROM Lock failed.\n");
a9083016
GM		 3045 return ret;
3046 }
3047
3048 ret = qla82xx_read_status_reg(ha, &val);
3049 if (ret < 0)
3050 goto done_unprotect;
3051
0547fb37 3052 val &= ~(BLOCK_PROTECT_BITS << 2);
a9083016
GM		 3053 ret = qla82xx_write_status_reg(ha, val);
3054 if (ret < 0) {
0547fb37 3055 val |= (BLOCK_PROTECT_BITS << 2);
a9083016
GM		 3056 qla82xx_write_status_reg(ha, val);
3057 }
3058
3059 if (qla82xx_write_disable_flash(ha) != 0)
7c3df132
SK		 3060 ql_log(ql_log_warn, vha, 0xb015,
3061 "Write disable failed.\n");
a9083016
GM		 3062
3063done_unprotect:
d652e093 3064 qla82xx_rom_unlock(ha);
a9083016
GM		 3065 return ret;
3066}
3067
77e334d2 3068static int
a9083016
GM		 3069qla82xx_protect_flash(struct qla_hw_data *ha)
3070{
3071 int ret;
3072 uint32_t val;
7c3df132 3073 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 3074
3075 ret = ql82xx_rom_lock_d(ha);
3076 if (ret < 0) {
7c3df132
SK		 3077 ql_log(ql_log_warn, vha, 0xb016,
3078 "ROM Lock failed.\n");
a9083016
GM		 3079 return ret;
3080 }
3081
3082 ret = qla82xx_read_status_reg(ha, &val);
3083 if (ret < 0)
3084 goto done_protect;
3085
0547fb37 3086 val |= (BLOCK_PROTECT_BITS << 2);
a9083016
GM		 3087 /* LOCK all sectors */
3088 ret = qla82xx_write_status_reg(ha, val);
3089 if (ret < 0)
7c3df132
SK		 3090 ql_log(ql_log_warn, vha, 0xb017,
3091 "Write status register failed.\n");
a9083016
GM		 3092
3093 if (qla82xx_write_disable_flash(ha) != 0)
7c3df132
SK		 3094 ql_log(ql_log_warn, vha, 0xb018,
3095 "Write disable failed.\n");
a9083016 3096done_protect:
d652e093 3097 qla82xx_rom_unlock(ha);
a9083016
GM		 3098 return ret;
3099}
3100
77e334d2 3101static int
a9083016
GM		 3102qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
3103{
3104 int ret = 0;
7c3df132 3105 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a9083016
GM		 3106
3107 ret = ql82xx_rom_lock_d(ha);
3108 if (ret < 0) {
7c3df132
SK		 3109 ql_log(ql_log_warn, vha, 0xb019,
3110 "ROM Lock failed.\n");
a9083016
GM		 3111 return ret;
3112 }
3113
3114 qla82xx_flash_set_write_enable(ha);
3115 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
3116 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
3117 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
3118
3119 if (qla82xx_wait_rom_done(ha)) {
7c3df132
SK		 3120 ql_log(ql_log_warn, vha, 0xb01a,
3121 "Error waiting for rom done.\n");
a9083016
GM		 3122 ret = -1;
3123 goto done;
3124 }
3125 ret = qla82xx_flash_wait_write_finish(ha);
3126done:
d652e093 3127 qla82xx_rom_unlock(ha);
a9083016
GM		 3128 return ret;
3129}
3130
3131/*
3132 * Address and length are byte address
3133 */
3134uint8_t *
3135qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3136 uint32_t offset, uint32_t length)
3137{
3138 scsi_block_requests(vha->host);
3139 qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
3140 scsi_unblock_requests(vha->host);
3141 return buf;
3142}
3143
3144static int
3145qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
3146 uint32_t faddr, uint32_t dwords)
3147{
3148 int ret;
3149 uint32_t liter;
3150 uint32_t sec_mask, rest_addr;
3151 dma_addr_t optrom_dma;
3152 void *optrom = NULL;
3153 int page_mode = 0;
3154 struct qla_hw_data *ha = vha->hw;
3155
3156 ret = -1;
3157
3158 /* Prepare burst-capable write on supported ISPs. */
3159 if (page_mode && !(faddr & 0xfff) &&
3160 dwords > OPTROM_BURST_DWORDS) {
3161 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
3162 &optrom_dma, GFP_KERNEL);
3163 if (!optrom) {
7c3df132
SK		 3164 ql_log(ql_log_warn, vha, 0xb01b,
3165 "Unable to allocate memory "
3166 "for optron burst write (%x KB).\n",
3167 OPTROM_BURST_SIZE / 1024);
a9083016
GM		 3168 }
3169 }
3170
3171 rest_addr = ha->fdt_block_size - 1;
3172 sec_mask = ~rest_addr;
3173
3174 ret = qla82xx_unprotect_flash(ha);
3175 if (ret) {
7c3df132
SK		 3176 ql_log(ql_log_warn, vha, 0xb01c,
3177 "Unable to unprotect flash for update.\n");
a9083016
GM		 3178 goto write_done;
3179 }
3180
3181 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3182 /* Are we at the beginning of a sector? */
3183 if ((faddr & rest_addr) == 0) {
3184
3185 ret = qla82xx_erase_sector(ha, faddr);
3186 if (ret) {
7c3df132
SK		 3187 ql_log(ql_log_warn, vha, 0xb01d,
3188 "Unable to erase sector: address=%x.\n",
3189 faddr);
a9083016
GM		 3190 break;
3191 }
3192 }
3193
3194 /* Go with burst-write. */
3195 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
3196 /* Copy data to DMA'ble buffer. */
3197 memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
3198
3199 ret = qla2x00_load_ram(vha, optrom_dma,
3200 (ha->flash_data_off | faddr),
3201 OPTROM_BURST_DWORDS);
3202 if (ret != QLA_SUCCESS) {
7c3df132 3203 ql_log(ql_log_warn, vha, 0xb01e,
a9083016
GM		 3204 "Unable to burst-write optrom segment "
3205 "(%x/%x/%llx).\n", ret,
3206 (ha->flash_data_off | faddr),
3207 (unsigned long long)optrom_dma);
7c3df132 3208 ql_log(ql_log_warn, vha, 0xb01f,
a9083016
GM		 3209 "Reverting to slow-write.\n");
3210
3211 dma_free_coherent(&ha->pdev->dev,
3212 OPTROM_BURST_SIZE, optrom, optrom_dma);
3213 optrom = NULL;
3214 } else {
3215 liter += OPTROM_BURST_DWORDS - 1;
3216 faddr += OPTROM_BURST_DWORDS - 1;
3217 dwptr += OPTROM_BURST_DWORDS - 1;
3218 continue;
3219 }
3220 }
3221
3222 ret = qla82xx_write_flash_dword(ha, faddr,
3223 cpu_to_le32(*dwptr));
3224 if (ret) {
7c3df132
SK		 3225 ql_dbg(ql_dbg_p3p, vha, 0xb020,
3226 "Unable to program flash address=%x data=%x.\n",
3227 faddr, *dwptr);
a9083016
GM		 3228 break;
3229 }
3230 }
3231
3232 ret = qla82xx_protect_flash(ha);
3233 if (ret)
7c3df132 3234 ql_log(ql_log_warn, vha, 0xb021,
a9083016
GM		 3235 "Unable to protect flash after update.\n");
3236write_done:
3237 if (optrom)
3238 dma_free_coherent(&ha->pdev->dev,
3239 OPTROM_BURST_SIZE, optrom, optrom_dma);
3240 return ret;
3241}
3242
3243int
3244qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3245 uint32_t offset, uint32_t length)
3246{
3247 int rval;
3248
3249 /* Suspend HBA. */
3250 scsi_block_requests(vha->host);
3251 rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
3252 length >> 2);
3253 scsi_unblock_requests(vha->host);
3254
3255 /* Convert return ISP82xx to generic */
3256 if (rval)
3257 rval = QLA_FUNCTION_FAILED;
3258 else
3259 rval = QLA_SUCCESS;
3260 return rval;
3261}
3262
3263void
3264qla82xx_start_iocbs(srb_t *sp)
3265{
3266 struct qla_hw_data *ha = sp->fcport->vha->hw;
3267 struct req_que *req = ha->req_q_map[0];
3268 struct device_reg_82xx __iomem *reg;
3269 uint32_t dbval;
3270
3271 /* Adjust ring index. */
3272 req->ring_index++;
3273 if (req->ring_index == req->length) {
3274 req->ring_index = 0;
3275 req->ring_ptr = req->ring;
3276 } else
3277 req->ring_ptr++;
3278
3279 reg = &ha->iobase->isp82;
3280 dbval = 0x04 | (ha->portnum << 5);
3281
3282 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
6907869d
GM		 3283 if (ql2xdbwr)
3284 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
3285 else {
3286 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
a9083016 3287 wmb();
6907869d
GM		 3288 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
3289 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr,
3290 dbval);
3291 wmb();
3292 }
a9083016
GM		 3293 }
3294}
3295
e6a4202a
SS		 3296void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
3297{
7c3df132
SK		 3298 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3299
e6a4202a
SS		 3300 if (qla82xx_rom_lock(ha))
3301 /* Someone else is holding the lock. */
7c3df132
SK		 3302 ql_log(ql_log_info, vha, 0xb022,
3303 "Resetting rom_lock.\n");
e6a4202a
SS		 3304
3305 /*
3306 * Either we got the lock, or someone
3307 * else died while holding it.
3308 * In either case, unlock.
3309 */
d652e093 3310 qla82xx_rom_unlock(ha);
e6a4202a
SS		 3311}
3312
a9083016
GM		 3313/*
3314 * qla82xx_device_bootstrap
3315 * Initialize device, set DEV_READY, start fw
3316 *
3317 * Note:
3318 * IDC lock must be held upon entry
3319 *
3320 * Return:
3321 * Success : 0
3322 * Failed : 1
3323 */
3324static int
3325qla82xx_device_bootstrap(scsi_qla_host_t *vha)
3326{
e6a4202a
SS		 3327 int rval = QLA_SUCCESS;
3328 int i, timeout;
a9083016
GM		 3329 uint32_t old_count, count;
3330 struct qla_hw_data *ha = vha->hw;
e6a4202a 3331 int need_reset = 0, peg_stuck = 1;
a9083016 3332
e6a4202a 3333 need_reset = qla82xx_need_reset(ha);
a9083016
GM		 3334
3335 old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3336
3337 for (i = 0; i < 10; i++) {
3338 timeout = msleep_interruptible(200);
3339 if (timeout) {
3340 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3341 QLA82XX_DEV_FAILED);
3342 return QLA_FUNCTION_FAILED;
3343 }
3344
3345 count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3346 if (count != old_count)
e6a4202a
SS		 3347 peg_stuck = 0;
3348 }
3349
3350 if (need_reset) {
3351 /* We are trying to perform a recovery here. */
3352 if (peg_stuck)
3353 qla82xx_rom_lock_recovery(ha);
3354 goto dev_initialize;
3355 } else {
3356 /* Start of day for this ha context. */
3357 if (peg_stuck) {
3358 /* Either we are the first or recovery in progress. */
3359 qla82xx_rom_lock_recovery(ha);
3360 goto dev_initialize;
3361 } else
3362 /* Firmware already running. */
a9083016
GM		 3363 goto dev_ready;
3364 }
3365
e6a4202a
SS		 3366 return rval;
3367
a9083016
GM		 3368dev_initialize:
3369 /* set to DEV_INITIALIZING */
7c3df132
SK		 3370 ql_log(ql_log_info, vha, 0x009e,
3371 "HW State: INITIALIZING.\n");
a9083016
GM		 3372 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
3373
3374 /* Driver that sets device state to initializating sets IDC version */
3375 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
3376
3377 qla82xx_idc_unlock(ha);
3378 rval = qla82xx_start_firmware(vha);
3379 qla82xx_idc_lock(ha);
3380
3381 if (rval != QLA_SUCCESS) {
7c3df132
SK		 3382 ql_log(ql_log_fatal, vha, 0x00ad,
3383 "HW State: FAILED.\n");
a9083016
GM		 3384 qla82xx_clear_drv_active(ha);
3385 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
3386 return rval;
3387 }
3388
3389dev_ready:
7c3df132
SK		 3390 ql_log(ql_log_info, vha, 0x00ae,
3391 "HW State: READY.\n");
a9083016
GM		 3392 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
3393
3394 return QLA_SUCCESS;
3395}
3396
579d12b5
SK		 3397/*
3398* qla82xx_need_qsnt_handler
3399* Code to start quiescence sequence
3400*
3401* Note:
3402* IDC lock must be held upon entry
3403*
3404* Return: void
3405*/
3406
3407static void
3408qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
3409{
3410 struct qla_hw_data *ha = vha->hw;
3411 uint32_t dev_state, drv_state, drv_active;
3412 unsigned long reset_timeout;
3413
3414 if (vha->flags.online) {
3415 /*Block any further I/O and wait for pending cmnds to complete*/
3416 qla82xx_quiescent_state_cleanup(vha);
3417 }
3418
3419 /* Set the quiescence ready bit */
3420 qla82xx_set_qsnt_ready(ha);
3421
3422 /*wait for 30 secs for other functions to ack */
3423 reset_timeout = jiffies + (30 * HZ);
3424
3425 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3426 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3427 /* Its 2 that is written when qsnt is acked, moving one bit */
3428 drv_active = drv_active << 0x01;
3429
3430 while (drv_state != drv_active) {
3431
3432 if (time_after_eq(jiffies, reset_timeout)) {
3433 /* quiescence timeout, other functions didn't ack
3434 * changing the state to DEV_READY
3435 */
7c3df132
SK		 3436 ql_log(ql_log_info, vha, 0xb023,
3437 "%s : QUIESCENT TIMEOUT.\n", QLA2XXX_DRIVER_NAME);
3438 ql_log(ql_log_info, vha, 0xb024,
3439 "DRV_ACTIVE:%d DRV_STATE:%d.\n",
3440 drv_active, drv_state);
579d12b5 3441 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
7c3df132
SK		 3442 QLA82XX_DEV_READY);
3443 ql_log(ql_log_info, vha, 0xb025,
3444 "HW State: DEV_READY.\n");
579d12b5
SK		 3445 qla82xx_idc_unlock(ha);
3446 qla2x00_perform_loop_resync(vha);
3447 qla82xx_idc_lock(ha);
3448
3449 qla82xx_clear_qsnt_ready(vha);
3450 return;
3451 }
3452
3453 qla82xx_idc_unlock(ha);
3454 msleep(1000);
3455 qla82xx_idc_lock(ha);
3456
3457 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3458 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3459 drv_active = drv_active << 0x01;
3460 }
3461 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3462 /* everyone acked so set the state to DEV_QUIESCENCE */
3463 if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
7c3df132
SK		 3464 ql_log(ql_log_info, vha, 0xb026,
3465 "HW State: DEV_QUIESCENT.\n");
579d12b5
SK		 3466 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
3467 }
3468}
3469
3470/*
3471* qla82xx_wait_for_state_change
3472* Wait for device state to change from given current state
3473*
3474* Note:
3475* IDC lock must not be held upon entry
3476*
3477* Return:
3478* Changed device state.
3479*/
3480uint32_t
3481qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
3482{
3483 struct qla_hw_data *ha = vha->hw;
3484 uint32_t dev_state;
3485
3486 do {
3487 msleep(1000);
3488 qla82xx_idc_lock(ha);
3489 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3490 qla82xx_idc_unlock(ha);
3491 } while (dev_state == curr_state);
3492
3493 return dev_state;
3494}
3495
a9083016
GM		 3496static void
3497qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
3498{
3499 struct qla_hw_data *ha = vha->hw;
3500
3501 /* Disable the board */
7c3df132
SK		 3502 ql_log(ql_log_fatal, vha, 0x00b8,
3503 "Disabling the board.\n");
a9083016 3504
b963752f
GM		 3505 qla82xx_idc_lock(ha);
3506 qla82xx_clear_drv_active(ha);
3507 qla82xx_idc_unlock(ha);
3508
a9083016
GM		 3509 /* Set DEV_FAILED flag to disable timer */
3510 vha->device_flags |= DFLG_DEV_FAILED;
3511 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3512 qla2x00_mark_all_devices_lost(vha, 0);
3513 vha->flags.online = 0;
3514 vha->flags.init_done = 0;
3515}
3516
3517/*
3518 * qla82xx_need_reset_handler
3519 * Code to start reset sequence
3520 *
3521 * Note:
3522 * IDC lock must be held upon entry
3523 *
3524 * Return:
3525 * Success : 0
3526 * Failed : 1
3527 */
3528static void
3529qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3530{
3531 uint32_t dev_state, drv_state, drv_active;
3532 unsigned long reset_timeout;
3533 struct qla_hw_data *ha = vha->hw;
3534 struct req_que *req = ha->req_q_map[0];
3535
3536 if (vha->flags.online) {
3537 qla82xx_idc_unlock(ha);
3538 qla2x00_abort_isp_cleanup(vha);
3539 ha->isp_ops->get_flash_version(vha, req->ring);
3540 ha->isp_ops->nvram_config(vha);
3541 qla82xx_idc_lock(ha);
3542 }
3543
3544 qla82xx_set_rst_ready(ha);
3545
3546 /* wait for 10 seconds for reset ack from all functions */
3547 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3548
3549 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3550 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3551
3552 while (drv_state != drv_active) {
3553 if (time_after_eq(jiffies, reset_timeout)) {
7c3df132
SK		 3554 ql_log(ql_log_warn, vha, 0x00b5,
3555 "Reset timeout.\n");
a9083016
GM		 3556 break;
3557 }
3558 qla82xx_idc_unlock(ha);
3559 msleep(1000);
3560 qla82xx_idc_lock(ha);
3561 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3562 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3563 }
3564
3565 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
7c3df132
SK		 3566 ql_log(ql_log_info, vha, 0x00b6,
3567 "Device state is 0x%x = %s.\n",
3568 dev_state,
3569 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
f1af6208 3570
a9083016
GM		 3571 /* Force to DEV_COLD unless someone else is starting a reset */
3572 if (dev_state != QLA82XX_DEV_INITIALIZING) {
7c3df132
SK		 3573 ql_log(ql_log_info, vha, 0x00b7,
3574 "HW State: COLD/RE-INIT.\n");
a9083016
GM		 3575 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
3576 }
3577}
3578
7190575f 3579int
a9083016
GM		 3580qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3581{
7190575f
GM		 3582 uint32_t fw_heartbeat_counter;
3583 int status = 0;
a9083016 3584
7190575f
GM		 3585 fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3586 QLA82XX_PEG_ALIVE_COUNTER);
a5b36321 3587 /* all 0xff, assume AER/EEH in progress, ignore */
7c3df132
SK		 3588 if (fw_heartbeat_counter == 0xffffffff) {
3589 ql_dbg(ql_dbg_timer, vha, 0x6003,
3590 "FW heartbeat counter is 0xffffffff, "
3591 "returning status=%d.\n", status);
7190575f 3592 return status;
7c3df132 3593 }
a9083016
GM		 3594 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3595 vha->seconds_since_last_heartbeat++;
3596 /* FW not alive after 2 seconds */
3597 if (vha->seconds_since_last_heartbeat == 2) {
3598 vha->seconds_since_last_heartbeat = 0;
7190575f 3599 status = 1;
a9083016 3600 }
efa786cc
LC		 3601 } else
3602 vha->seconds_since_last_heartbeat = 0;
a9083016 3603 vha->fw_heartbeat_counter = fw_heartbeat_counter;
7c3df132
SK		 3604 if (status)
3605 ql_dbg(ql_dbg_timer, vha, 0x6004,
3606 "Returning status=%d.\n", status);
7190575f 3607 return status;
a9083016
GM		 3608}
3609
3610/*
3611 * qla82xx_device_state_handler
3612 * Main state handler
3613 *
3614 * Note:
3615 * IDC lock must be held upon entry
3616 *
3617 * Return:
3618 * Success : 0
3619 * Failed : 1
3620 */
3621int
3622qla82xx_device_state_handler(scsi_qla_host_t *vha)
3623{
3624 uint32_t dev_state;
92dbf273 3625 uint32_t old_dev_state;
a9083016
GM		 3626 int rval = QLA_SUCCESS;
3627 unsigned long dev_init_timeout;
3628 struct qla_hw_data *ha = vha->hw;
92dbf273 3629 int loopcount = 0;
a9083016
GM		 3630
3631 qla82xx_idc_lock(ha);
3632 if (!vha->flags.init_done)
3633 qla82xx_set_drv_active(vha);
3634
f1af6208 3635 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
92dbf273 3636 old_dev_state = dev_state;
7c3df132
SK		 3637 ql_log(ql_log_info, vha, 0x009b,
3638 "Device state is 0x%x = %s.\n",
3639 dev_state,
3640 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
a9083016
GM		 3641
3642 /* wait for 30 seconds for device to go ready */
3643 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3644
3645 while (1) {
3646
3647 if (time_after_eq(jiffies, dev_init_timeout)) {
7c3df132
SK		 3648 ql_log(ql_log_fatal, vha, 0x009c,
3649 "Device init failed.\n");
a9083016
GM		 3650 rval = QLA_FUNCTION_FAILED;
3651 break;
3652 }
3653 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
92dbf273
GM		 3654 if (old_dev_state != dev_state) {
3655 loopcount = 0;
3656 old_dev_state = dev_state;
3657 }
3658 if (loopcount < 5) {
7c3df132
SK		 3659 ql_log(ql_log_info, vha, 0x009d,
3660 "Device state is 0x%x = %s.\n",
3661 dev_state,
3662 dev_state < MAX_STATES ? qdev_state[dev_state] :
3663 "Unknown");
92dbf273 3664 }
f1af6208 3665
a9083016
GM		 3666 switch (dev_state) {
3667 case QLA82XX_DEV_READY:
3668 goto exit;
3669 case QLA82XX_DEV_COLD:
3670 rval = qla82xx_device_bootstrap(vha);
3671 goto exit;
3672 case QLA82XX_DEV_INITIALIZING:
3673 qla82xx_idc_unlock(ha);
3674 msleep(1000);
3675 qla82xx_idc_lock(ha);
3676 break;
3677 case QLA82XX_DEV_NEED_RESET:
ed0de87c 3678 if (!ql2xdontresethba)
0ce87911 3679 qla82xx_need_reset_handler(vha);
0060ddf8
GM		 3680 dev_init_timeout = jiffies +
3681 (ha->nx_dev_init_timeout * HZ);
a9083016
GM		 3682 break;
3683 case QLA82XX_DEV_NEED_QUIESCENT:
579d12b5
SK		 3684 qla82xx_need_qsnt_handler(vha);
3685 /* Reset timeout value after quiescence handler */
3686 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3687 * HZ);
3688 break;
a9083016 3689 case QLA82XX_DEV_QUIESCENT:
579d12b5
SK		 3690 /* Owner will exit and other will wait for the state
3691 * to get changed
3692 */
3693 if (ha->flags.quiesce_owner)
3694 goto exit;
3695
a9083016
GM		 3696 qla82xx_idc_unlock(ha);
3697 msleep(1000);
3698 qla82xx_idc_lock(ha);
579d12b5
SK		 3699
3700 /* Reset timeout value after quiescence handler */
3701 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3702 * HZ);
a9083016
GM		 3703 break;
3704 case QLA82XX_DEV_FAILED:
3705 qla82xx_dev_failed_handler(vha);
3706 rval = QLA_FUNCTION_FAILED;
3707 goto exit;
3708 default:
3709 qla82xx_idc_unlock(ha);
3710 msleep(1000);
3711 qla82xx_idc_lock(ha);
3712 }
92dbf273 3713 loopcount++;
a9083016
GM		 3714 }
3715exit:
3716 qla82xx_idc_unlock(ha);
3717 return rval;
3718}
3719
3720void qla82xx_watchdog(scsi_qla_host_t *vha)
3721{
7190575f 3722 uint32_t dev_state, halt_status;
a9083016
GM		 3723 struct qla_hw_data *ha = vha->hw;
3724
a9083016 3725 /* don't poll if reset is going on */
7190575f
GM		 3726 if (!ha->flags.isp82xx_reset_hdlr_active) {
3727 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3728 if (dev_state == QLA82XX_DEV_NEED_RESET &&
3729 !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
7c3df132
SK		 3730 ql_log(ql_log_warn, vha, 0x6001,
3731 "Adapter reset needed.\n");
a9083016
GM		 3732 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3733 qla2xxx_wake_dpc(vha);
579d12b5
SK		 3734 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
3735 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
7c3df132
SK		 3736 ql_log(ql_log_warn, vha, 0x6002,
3737 "Quiescent needed.\n");
579d12b5
SK		 3738 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3739 qla2xxx_wake_dpc(vha);
a9083016 3740 } else {
7190575f
GM		 3741 if (qla82xx_check_fw_alive(vha)) {
3742 halt_status = qla82xx_rd_32(ha,
3743 QLA82XX_PEG_HALT_STATUS1);
7c3df132
SK		 3744 ql_dbg(ql_dbg_timer, vha, 0x6005,
3745 "dumping hw/fw registers:.\n "
3746 " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3747 " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3748 " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3749 " PEG_NET_4_PC: 0x%x.\n", halt_status,
0e8edb03
GM		 3750 qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3751 qla82xx_rd_32(ha,
3752 QLA82XX_CRB_PEG_NET_0 + 0x3c),
3753 qla82xx_rd_32(ha,
3754 QLA82XX_CRB_PEG_NET_1 + 0x3c),
3755 qla82xx_rd_32(ha,
3756 QLA82XX_CRB_PEG_NET_2 + 0x3c),
3757 qla82xx_rd_32(ha,
3758 QLA82XX_CRB_PEG_NET_3 + 0x3c),
3759 qla82xx_rd_32(ha,
3760 QLA82XX_CRB_PEG_NET_4 + 0x3c));
7190575f
GM		 3761 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3762 set_bit(ISP_UNRECOVERABLE,
3763 &vha->dpc_flags);
3764 } else {
7c3df132
SK		 3765 ql_log(ql_log_info, vha, 0x6006,
3766 "Detect abort needed.\n");
7190575f
GM		 3767 set_bit(ISP_ABORT_NEEDED,
3768 &vha->dpc_flags);
3769 }
3770 qla2xxx_wake_dpc(vha);
3771 ha->flags.isp82xx_fw_hung = 1;
3772 if (ha->flags.mbox_busy) {
3773 ha->flags.mbox_int = 1;
7c3df132
SK		 3774 ql_log(ql_log_warn, vha, 0x6007,
3775 "Due to FW hung, doing "
24014d04 3776 "premature completion of mbx "
7c3df132 3777 "command.\n");
7190575f
GM		 3778 if (test_bit(MBX_INTR_WAIT,
3779 &ha->mbx_cmd_flags))
3780 complete(&ha->mbx_intr_comp);
3781 }
3782 }
a9083016
GM		 3783 }
3784 }
3785}
3786
3787int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3788{
3789 int rval;
3790 rval = qla82xx_device_state_handler(vha);
3791 return rval;
3792}
3793
3794/*
3795 * qla82xx_abort_isp
3796 * Resets ISP and aborts all outstanding commands.
3797 *
3798 * Input:
3799 * ha = adapter block pointer.
3800 *
3801 * Returns:
3802 * 0 = success
3803 */
3804int
3805qla82xx_abort_isp(scsi_qla_host_t *vha)
3806{
3807 int rval;
3808 struct qla_hw_data *ha = vha->hw;
3809 uint32_t dev_state;
3810
3811 if (vha->device_flags & DFLG_DEV_FAILED) {
7c3df132
SK		 3812 ql_log(ql_log_warn, vha, 0x8024,
3813 "Device in failed state, exiting.\n");
a9083016
GM		 3814 return QLA_SUCCESS;
3815 }
7190575f 3816 ha->flags.isp82xx_reset_hdlr_active = 1;
a9083016
GM		 3817
3818 qla82xx_idc_lock(ha);
3819 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
f1af6208 3820 if (dev_state == QLA82XX_DEV_READY) {
7c3df132
SK		 3821 ql_log(ql_log_info, vha, 0x8025,
3822 "HW State: NEED RESET.\n");
a9083016
GM		 3823 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3824 QLA82XX_DEV_NEED_RESET);
3825 } else
7c3df132
SK		 3826 ql_log(ql_log_info, vha, 0x8026,
3827 "Hw State: %s.\n", dev_state < MAX_STATES ?
3828 qdev_state[dev_state] : "Unknown");
a9083016
GM		 3829 qla82xx_idc_unlock(ha);
3830
3831 rval = qla82xx_device_state_handler(vha);
3832
3833 qla82xx_idc_lock(ha);
3834 qla82xx_clear_rst_ready(ha);
3835 qla82xx_idc_unlock(ha);
3836
cdbb0a4f 3837 if (rval == QLA_SUCCESS) {
7190575f
GM		 3838 ha->flags.isp82xx_fw_hung = 0;
3839 ha->flags.isp82xx_reset_hdlr_active = 0;
a9083016 3840 qla82xx_restart_isp(vha);
cdbb0a4f 3841 }
f1af6208
GM		 3842
3843 if (rval) {
3844 vha->flags.online = 1;
3845 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3846 if (ha->isp_abort_cnt == 0) {
7c3df132
SK		 3847 ql_log(ql_log_warn, vha, 0x8027,
3848 "ISP error recover failed - board "
3849 "disabled.\n");
f1af6208
GM		 3850 /*
3851 * The next call disables the board
3852 * completely.
3853 */
3854 ha->isp_ops->reset_adapter(vha);
3855 vha->flags.online = 0;
3856 clear_bit(ISP_ABORT_RETRY,
3857 &vha->dpc_flags);
3858 rval = QLA_SUCCESS;
3859 } else { /* schedule another ISP abort */
3860 ha->isp_abort_cnt--;
7c3df132
SK		 3861 ql_log(ql_log_warn, vha, 0x8036,
3862 "ISP abort - retry remaining %d.\n",
3863 ha->isp_abort_cnt);
f1af6208
GM		 3864 rval = QLA_FUNCTION_FAILED;
3865 }
3866 } else {
3867 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
7c3df132
SK		 3868 ql_dbg(ql_dbg_taskm, vha, 0x8029,
3869 "ISP error recovery - retrying (%d) more times.\n",
3870 ha->isp_abort_cnt);
f1af6208
GM		 3871 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3872 rval = QLA_FUNCTION_FAILED;
3873 }
3874 }
a9083016
GM		 3875 return rval;
3876}
3877
3878/*
3879 * qla82xx_fcoe_ctx_reset
3880 * Perform a quick reset and aborts all outstanding commands.
3881 * This will only perform an FCoE context reset and avoids a full blown
3882 * chip reset.
3883 *
3884 * Input:
3885 * ha = adapter block pointer.
3886 * is_reset_path = flag for identifying the reset path.
3887 *
3888 * Returns:
3889 * 0 = success
3890 */
3891int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3892{
3893 int rval = QLA_FUNCTION_FAILED;
3894
3895 if (vha->flags.online) {
3896 /* Abort all outstanding commands, so as to be requeued later */
3897 qla2x00_abort_isp_cleanup(vha);
3898 }
3899
3900 /* Stop currently executing firmware.
3901 * This will destroy existing FCoE context at the F/W end.
3902 */
3903 qla2x00_try_to_stop_firmware(vha);
3904
3905 /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3906 rval = qla82xx_restart_isp(vha);
3907
3908 return rval;
3909}
3910
3911/*
3912 * qla2x00_wait_for_fcoe_ctx_reset
3913 * Wait till the FCoE context is reset.
3914 *
3915 * Note:
3916 * Does context switching here.
3917 * Release SPIN_LOCK (if any) before calling this routine.
3918 *
3919 * Return:
3920 * Success (fcoe_ctx reset is done) : 0
3921 * Failed (fcoe_ctx reset not completed within max loop timout ) : 1
3922 */
3923int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3924{
3925 int status = QLA_FUNCTION_FAILED;
3926 unsigned long wait_reset;
3927
3928 wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3929 while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3930 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3931 && time_before(jiffies, wait_reset)) {
3932
3933 set_current_state(TASK_UNINTERRUPTIBLE);
3934 schedule_timeout(HZ);
3935
3936 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3937 !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3938 status = QLA_SUCCESS;
3939 break;
3940 }
3941 }
7c3df132
SK		 3942 ql_dbg(ql_dbg_p3p, vha, 0xb027,
3943 "%s status=%d.\n", status);
a9083016
GM		 3944
3945 return status;
3946}
7190575f
GM		 3947
3948void
3949qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3950{
3951 int i;
3952 unsigned long flags;
3953 struct qla_hw_data *ha = vha->hw;
3954
3955 /* Check if 82XX firmware is alive or not
3956 * We may have arrived here from NEED_RESET
3957 * detection only
3958 */
3959 if (!ha->flags.isp82xx_fw_hung) {
3960 for (i = 0; i < 2; i++) {
3961 msleep(1000);
3962 if (qla82xx_check_fw_alive(vha)) {
3963 ha->flags.isp82xx_fw_hung = 1;
3964 if (ha->flags.mbox_busy) {
3965 ha->flags.mbox_int = 1;
3966 complete(&ha->mbx_intr_comp);
3967 }
3968 break;
3969 }
3970 }
3971 }
7c3df132
SK		 3972 ql_dbg(ql_dbg_init, vha, 0x00b0,
3973 "Entered %s fw_hung=%d.\n",
3974 __func__, ha->flags.isp82xx_fw_hung);
7190575f
GM		 3975
3976 /* Abort all commands gracefully if fw NOT hung */
3977 if (!ha->flags.isp82xx_fw_hung) {
3978 int cnt, que;
3979 srb_t *sp;
3980 struct req_que *req;
3981
3982 spin_lock_irqsave(&ha->hardware_lock, flags);
3983 for (que = 0; que < ha->max_req_queues; que++) {
3984 req = ha->req_q_map[que];
3985 if (!req)
3986 continue;
3987 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3988 sp = req->outstanding_cmds[cnt];
3989 if (sp) {
3990 if (!sp->ctx ||
3991 (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3992 spin_unlock_irqrestore(
3993 &ha->hardware_lock, flags);
3994 if (ha->isp_ops->abort_command(sp)) {
7c3df132
SK		 3995 ql_log(ql_log_info, vha,
3996 0x00b1,
3997 "mbx abort failed.\n");
7190575f 3998 } else {
7c3df132
SK		 3999 ql_log(ql_log_info, vha,
4000 0x00b2,
4001 "mbx abort success.\n");
7190575f
GM		 4002 }
4003 spin_lock_irqsave(&ha->hardware_lock, flags);
4004 }
4005 }
4006 }
4007 }
4008 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4009
4010 /* Wait for pending cmds (physical and virtual) to complete */
4011 if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
4012 WAIT_HOST) == QLA_SUCCESS) {
7c3df132
SK		 4013 ql_dbg(ql_dbg_init, vha, 0x00b3,
4014 "Done wait for "
4015 "pending commands.\n");
7190575f
GM		 4016 }
4017 }
4018}
Michael's Linux tree.