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Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / scsi / qla2xxx / qla_nx.c
blob94bded5ddce4fe2f958dcdb8387c471eeaf790cf
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2011 QLogic Corporation
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>
10 #include <linux/ratelimit.h>
11 #include <linux/vmalloc.h>
12 #include <scsi/scsi_tcq.h>
13
14 #define MASK(n) ((1ULL<<(n))-1)
15 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
16 ((addr >> 25) & 0x3ff))
17 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
18 ((addr >> 25) & 0x3ff))
19 #define MS_WIN(addr) (addr & 0x0ffc0000)
20 #define QLA82XX_PCI_MN_2M (0)
21 #define QLA82XX_PCI_MS_2M (0x80000)
22 #define QLA82XX_PCI_OCM0_2M (0xc0000)
23 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
24 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
25 #define BLOCK_PROTECT_BITS 0x0F
26
27 /* CRB window related */
28 #define CRB_BLK(off) ((off >> 20) & 0x3f)
29 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
30 #define CRB_WINDOW_2M (0x130060)
31 #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
32 #define CRB_HI(off) ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
33 ((off) & 0xf0000))
34 #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
35 #define CRB_INDIRECT_2M (0x1e0000UL)
36
37 #define MAX_CRB_XFORM 60
38 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
39 int qla82xx_crb_table_initialized;
40
41 #define qla82xx_crb_addr_transform(name) \
42 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
43 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
44
45 static void qla82xx_crb_addr_transform_setup(void)
46 {
47 qla82xx_crb_addr_transform(XDMA);
48 qla82xx_crb_addr_transform(TIMR);
49 qla82xx_crb_addr_transform(SRE);
50 qla82xx_crb_addr_transform(SQN3);
51 qla82xx_crb_addr_transform(SQN2);
52 qla82xx_crb_addr_transform(SQN1);
53 qla82xx_crb_addr_transform(SQN0);
54 qla82xx_crb_addr_transform(SQS3);
55 qla82xx_crb_addr_transform(SQS2);
56 qla82xx_crb_addr_transform(SQS1);
57 qla82xx_crb_addr_transform(SQS0);
58 qla82xx_crb_addr_transform(RPMX7);
59 qla82xx_crb_addr_transform(RPMX6);
60 qla82xx_crb_addr_transform(RPMX5);
61 qla82xx_crb_addr_transform(RPMX4);
62 qla82xx_crb_addr_transform(RPMX3);
63 qla82xx_crb_addr_transform(RPMX2);
64 qla82xx_crb_addr_transform(RPMX1);
65 qla82xx_crb_addr_transform(RPMX0);
66 qla82xx_crb_addr_transform(ROMUSB);
67 qla82xx_crb_addr_transform(SN);
68 qla82xx_crb_addr_transform(QMN);
69 qla82xx_crb_addr_transform(QMS);
70 qla82xx_crb_addr_transform(PGNI);
71 qla82xx_crb_addr_transform(PGND);
72 qla82xx_crb_addr_transform(PGN3);
73 qla82xx_crb_addr_transform(PGN2);
74 qla82xx_crb_addr_transform(PGN1);
75 qla82xx_crb_addr_transform(PGN0);
76 qla82xx_crb_addr_transform(PGSI);
77 qla82xx_crb_addr_transform(PGSD);
78 qla82xx_crb_addr_transform(PGS3);
79 qla82xx_crb_addr_transform(PGS2);
80 qla82xx_crb_addr_transform(PGS1);
81 qla82xx_crb_addr_transform(PGS0);
82 qla82xx_crb_addr_transform(PS);
83 qla82xx_crb_addr_transform(PH);
84 qla82xx_crb_addr_transform(NIU);
85 qla82xx_crb_addr_transform(I2Q);
86 qla82xx_crb_addr_transform(EG);
87 qla82xx_crb_addr_transform(MN);
88 qla82xx_crb_addr_transform(MS);
89 qla82xx_crb_addr_transform(CAS2);
90 qla82xx_crb_addr_transform(CAS1);
91 qla82xx_crb_addr_transform(CAS0);
92 qla82xx_crb_addr_transform(CAM);
93 qla82xx_crb_addr_transform(C2C1);
94 qla82xx_crb_addr_transform(C2C0);
95 qla82xx_crb_addr_transform(SMB);
96 qla82xx_crb_addr_transform(OCM0);
97 /*
98 * Used only in P3 just define it for P2 also.
99 */
100 qla82xx_crb_addr_transform(I2C0);
101
102 qla82xx_crb_table_initialized = 1;
103 }
104
105 struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
106 {{{0, 0, 0, 0} } },
107 {{{1, 0x0100000, 0x0102000, 0x120000},
108 {1, 0x0110000, 0x0120000, 0x130000},
109 {1, 0x0120000, 0x0122000, 0x124000},
110 {1, 0x0130000, 0x0132000, 0x126000},
111 {1, 0x0140000, 0x0142000, 0x128000},
112 {1, 0x0150000, 0x0152000, 0x12a000},
113 {1, 0x0160000, 0x0170000, 0x110000},
114 {1, 0x0170000, 0x0172000, 0x12e000},
115 {0, 0x0000000, 0x0000000, 0x000000},
116 {0, 0x0000000, 0x0000000, 0x000000},
117 {0, 0x0000000, 0x0000000, 0x000000},
118 {0, 0x0000000, 0x0000000, 0x000000},
119 {0, 0x0000000, 0x0000000, 0x000000},
120 {0, 0x0000000, 0x0000000, 0x000000},
121 {1, 0x01e0000, 0x01e0800, 0x122000},
122 {0, 0x0000000, 0x0000000, 0x000000} } } ,
123 {{{1, 0x0200000, 0x0210000, 0x180000} } },
124 {{{0, 0, 0, 0} } },
125 {{{1, 0x0400000, 0x0401000, 0x169000} } },
126 {{{1, 0x0500000, 0x0510000, 0x140000} } },
127 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
128 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
129 {{{1, 0x0800000, 0x0802000, 0x170000},
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 {0, 0x0000000, 0x0000000, 0x000000},
143 {0, 0x0000000, 0x0000000, 0x000000},
144 {1, 0x08f0000, 0x08f2000, 0x172000} } },
145 {{{1, 0x0900000, 0x0902000, 0x174000},
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 {0, 0x0000000, 0x0000000, 0x000000},
159 {0, 0x0000000, 0x0000000, 0x000000},
160 {1, 0x09f0000, 0x09f2000, 0x176000} } },
161 {{{0, 0x0a00000, 0x0a02000, 0x178000},
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 {0, 0x0000000, 0x0000000, 0x000000},
175 {0, 0x0000000, 0x0000000, 0x000000},
176 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
177 {{{0, 0x0b00000, 0x0b02000, 0x17c000},
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 {0, 0x0000000, 0x0000000, 0x000000},
191 {0, 0x0000000, 0x0000000, 0x000000},
192 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
193 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
194 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
195 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
196 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
197 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
198 {{{1, 0x1100000, 0x1101000, 0x160000} } },
199 {{{1, 0x1200000, 0x1201000, 0x161000} } },
200 {{{1, 0x1300000, 0x1301000, 0x162000} } },
201 {{{1, 0x1400000, 0x1401000, 0x163000} } },
202 {{{1, 0x1500000, 0x1501000, 0x165000} } },
203 {{{1, 0x1600000, 0x1601000, 0x166000} } },
204 {{{0, 0, 0, 0} } },
205 {{{0, 0, 0, 0} } },
206 {{{0, 0, 0, 0} } },
207 {{{0, 0, 0, 0} } },
208 {{{0, 0, 0, 0} } },
209 {{{0, 0, 0, 0} } },
210 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
211 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
212 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
213 {{{0} } },
214 {{{1, 0x2100000, 0x2102000, 0x120000},
215 {1, 0x2110000, 0x2120000, 0x130000},
216 {1, 0x2120000, 0x2122000, 0x124000},
217 {1, 0x2130000, 0x2132000, 0x126000},
218 {1, 0x2140000, 0x2142000, 0x128000},
219 {1, 0x2150000, 0x2152000, 0x12a000},
220 {1, 0x2160000, 0x2170000, 0x110000},
221 {1, 0x2170000, 0x2172000, 0x12e000},
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 {0, 0x0000000, 0x0000000, 0x000000},
229 {0, 0x0000000, 0x0000000, 0x000000} } },
230 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
231 {{{0} } },
232 {{{0} } },
233 {{{0} } },
234 {{{0} } },
235 {{{0} } },
236 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
237 {{{1, 0x2900000, 0x2901000, 0x16b000} } },
238 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
239 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
240 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
241 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
242 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
243 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
244 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
245 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
246 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
247 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
248 {{{0} } },
249 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
250 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
251 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
252 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
253 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
254 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
255 {{{0} } },
256 {{{0} } },
257 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
258 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
259 {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
260 };
261
262 /*
263 * top 12 bits of crb internal address (hub, agent)
264 */
265 unsigned qla82xx_crb_hub_agt[64] = {
266 0,
267 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
268 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
269 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
270 0,
271 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
272 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
273 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
274 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
275 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
276 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
278 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
280 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
291 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
293 0,
294 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
296 0,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
298 0,
299 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
300 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
301 0,
302 0,
303 0,
304 0,
305 0,
306 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
307 0,
308 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
309 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
310 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
311 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
312 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
313 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
314 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
315 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
316 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
317 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
318 0,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
321 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
323 0,
324 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
325 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
326 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
327 0,
328 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
329 0,
330 };
331
332 /* Device states */
333 char *q_dev_state[] = {
334 "Unknown",
335 "Cold",
336 "Initializing",
337 "Ready",
338 "Need Reset",
339 "Need Quiescent",
340 "Failed",
341 "Quiescent",
342 };
343
344 char *qdev_state(uint32_t dev_state)
345 {
346 return q_dev_state[dev_state];
347 }
348
349 /*
350 * In: 'off' is offset from CRB space in 128M pci map
351 * Out: 'off' is 2M pci map addr
352 * side effect: lock crb window
353 */
354 static void
355 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
356 {
357 u32 win_read;
358 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
359
360 ha->crb_win = CRB_HI(*off);
361 writel(ha->crb_win,
362 (void *)(CRB_WINDOW_2M + ha->nx_pcibase));
363
364 /* Read back value to make sure write has gone through before trying
365 * to use it.
366 */
367 win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
368 if (win_read != ha->crb_win) {
369 ql_dbg(ql_dbg_p3p, vha, 0xb000,
370 "%s: Written crbwin (0x%x) "
371 "!= Read crbwin (0x%x), off=0x%lx.\n",
372 ha->crb_win, win_read, *off);
373 }
374 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
375 }
376
377 static inline unsigned long
378 qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
379 {
380 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
381 /* See if we are currently pointing to the region we want to use next */
382 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
383 /* No need to change window. PCIX and PCIEregs are in both
384 * regs are in both windows.
385 */
386 return off;
387 }
388
389 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
390 /* We are in first CRB window */
391 if (ha->curr_window != 0)
392 WARN_ON(1);
393 return off;
394 }
395
396 if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
397 /* We are in second CRB window */
398 off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
399
400 if (ha->curr_window != 1)
401 return off;
402
403 /* We are in the QM or direct access
404 * register region - do nothing
405 */
406 if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
407 (off < QLA82XX_PCI_CAMQM_MAX))
408 return off;
409 }
410 /* strange address given */
411 ql_dbg(ql_dbg_p3p, vha, 0xb001,
412 "%x: Warning: unm_nic_pci_set_crbwindow "
413 "called with an unknown address(%llx).\n",
414 QLA2XXX_DRIVER_NAME, off);
415 return off;
416 }
417
418 static int
419 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
420 {
421 struct crb_128M_2M_sub_block_map *m;
422
423 if (*off >= QLA82XX_CRB_MAX)
424 return -1;
425
426 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
427 *off = (*off - QLA82XX_PCI_CAMQM) +
428 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
429 return 0;
430 }
431
432 if (*off < QLA82XX_PCI_CRBSPACE)
433 return -1;
434
435 *off -= QLA82XX_PCI_CRBSPACE;
436
437 /* Try direct map */
438 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
439
440 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
441 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
442 return 0;
443 }
444 /* Not in direct map, use crb window */
445 return 1;
446 }
447
448 #define CRB_WIN_LOCK_TIMEOUT 100000000
449 static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
450 {
451 int done = 0, timeout = 0;
452
453 while (!done) {
454 /* acquire semaphore3 from PCI HW block */
455 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
456 if (done == 1)
457 break;
458 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
459 return -1;
460 timeout++;
461 }
462 qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
463 return 0;
464 }
465
466 int
467 qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
468 {
469 unsigned long flags = 0;
470 int rv;
471
472 rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
473
474 BUG_ON(rv == -1);
475
476 if (rv == 1) {
477 write_lock_irqsave(&ha->hw_lock, flags);
478 qla82xx_crb_win_lock(ha);
479 qla82xx_pci_set_crbwindow_2M(ha, &off);
480 }
481
482 writel(data, (void __iomem *)off);
483
484 if (rv == 1) {
485 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
486 write_unlock_irqrestore(&ha->hw_lock, flags);
487 }
488 return 0;
489 }
490
491 int
492 qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
493 {
494 unsigned long flags = 0;
495 int rv;
496 u32 data;
497
498 rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
499
500 BUG_ON(rv == -1);
501
502 if (rv == 1) {
503 write_lock_irqsave(&ha->hw_lock, flags);
504 qla82xx_crb_win_lock(ha);
505 qla82xx_pci_set_crbwindow_2M(ha, &off);
506 }
507 data = RD_REG_DWORD((void __iomem *)off);
508
509 if (rv == 1) {
510 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
511 write_unlock_irqrestore(&ha->hw_lock, flags);
512 }
513 return data;
514 }
515
516 #define IDC_LOCK_TIMEOUT 100000000
517 int qla82xx_idc_lock(struct qla_hw_data *ha)
518 {
519 int i;
520 int done = 0, timeout = 0;
521
522 while (!done) {
523 /* acquire semaphore5 from PCI HW block */
524 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
525 if (done == 1)
526 break;
527 if (timeout >= IDC_LOCK_TIMEOUT)
528 return -1;
529
530 timeout++;
531
532 /* Yield CPU */
533 if (!in_interrupt())
534 schedule();
535 else {
536 for (i = 0; i < 20; i++)
537 cpu_relax();
538 }
539 }
540
541 return 0;
542 }
543
544 void qla82xx_idc_unlock(struct qla_hw_data *ha)
545 {
546 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
547 }
548
549 /* PCI Windowing for DDR regions. */
550 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
551 (((addr) <= (high)) && ((addr) >= (low)))
552 /*
553 * check memory access boundary.
554 * used by test agent. support ddr access only for now
555 */
556 static unsigned long
557 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
558 unsigned long long addr, int size)
559 {
560 if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
561 QLA82XX_ADDR_DDR_NET_MAX) ||
562 !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
563 QLA82XX_ADDR_DDR_NET_MAX) ||
564 ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
565 return 0;
566 else
567 return 1;
568 }
569
570 int qla82xx_pci_set_window_warning_count;
571
572 static unsigned long
573 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
574 {
575 int window;
576 u32 win_read;
577 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
578
579 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
580 QLA82XX_ADDR_DDR_NET_MAX)) {
581 /* DDR network side */
582 window = MN_WIN(addr);
583 ha->ddr_mn_window = window;
584 qla82xx_wr_32(ha,
585 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
586 win_read = qla82xx_rd_32(ha,
587 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
588 if ((win_read << 17) != window) {
589 ql_dbg(ql_dbg_p3p, vha, 0xb003,
590 "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
591 __func__, window, win_read);
592 }
593 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
594 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
595 QLA82XX_ADDR_OCM0_MAX)) {
596 unsigned int temp1;
597 if ((addr & 0x00ff800) == 0xff800) {
598 ql_log(ql_log_warn, vha, 0xb004,
599 "%s: QM access not handled.\n", __func__);
600 addr = -1UL;
601 }
602 window = OCM_WIN(addr);
603 ha->ddr_mn_window = window;
604 qla82xx_wr_32(ha,
605 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
606 win_read = qla82xx_rd_32(ha,
607 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
608 temp1 = ((window & 0x1FF) << 7) |
609 ((window & 0x0FFFE0000) >> 17);
610 if (win_read != temp1) {
611 ql_log(ql_log_warn, vha, 0xb005,
612 "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
613 __func__, temp1, win_read);
614 }
615 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
616
617 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
618 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
619 /* QDR network side */
620 window = MS_WIN(addr);
621 ha->qdr_sn_window = window;
622 qla82xx_wr_32(ha,
623 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
624 win_read = qla82xx_rd_32(ha,
625 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
626 if (win_read != window) {
627 ql_log(ql_log_warn, vha, 0xb006,
628 "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
629 __func__, window, win_read);
630 }
631 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
632 } else {
633 /*
634 * peg gdb frequently accesses memory that doesn't exist,
635 * this limits the chit chat so debugging isn't slowed down.
636 */
637 if ((qla82xx_pci_set_window_warning_count++ < 8) ||
638 (qla82xx_pci_set_window_warning_count%64 == 0)) {
639 ql_log(ql_log_warn, vha, 0xb007,
640 "%s: Warning:%s Unknown address range!.\n",
641 __func__, QLA2XXX_DRIVER_NAME);
642 }
643 addr = -1UL;
644 }
645 return addr;
646 }
647
648 /* check if address is in the same windows as the previous access */
649 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
650 unsigned long long addr)
651 {
652 int window;
653 unsigned long long qdr_max;
654
655 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
656
657 /* DDR network side */
658 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
659 QLA82XX_ADDR_DDR_NET_MAX))
660 BUG();
661 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
662 QLA82XX_ADDR_OCM0_MAX))
663 return 1;
664 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
665 QLA82XX_ADDR_OCM1_MAX))
666 return 1;
667 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
668 /* QDR network side */
669 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
670 if (ha->qdr_sn_window == window)
671 return 1;
672 }
673 return 0;
674 }
675
676 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
677 u64 off, void *data, int size)
678 {
679 unsigned long flags;
680 void *addr = NULL;
681 int ret = 0;
682 u64 start;
683 uint8_t *mem_ptr = NULL;
684 unsigned long mem_base;
685 unsigned long mem_page;
686 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
687
688 write_lock_irqsave(&ha->hw_lock, flags);
689
690 /*
691 * If attempting to access unknown address or straddle hw windows,
692 * do not access.
693 */
694 start = qla82xx_pci_set_window(ha, off);
695 if ((start == -1UL) ||
696 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
697 write_unlock_irqrestore(&ha->hw_lock, flags);
698 ql_log(ql_log_fatal, vha, 0xb008,
699 "%s out of bound pci memory "
700 "access, offset is 0x%llx.\n",
701 QLA2XXX_DRIVER_NAME, off);
702 return -1;
703 }
704
705 write_unlock_irqrestore(&ha->hw_lock, flags);
706 mem_base = pci_resource_start(ha->pdev, 0);
707 mem_page = start & PAGE_MASK;
708 /* Map two pages whenever user tries to access addresses in two
709 * consecutive pages.
710 */
711 if (mem_page != ((start + size - 1) & PAGE_MASK))
712 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
713 else
714 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
715 if (mem_ptr == 0UL) {
716 *(u8 *)data = 0;
717 return -1;
718 }
719 addr = mem_ptr;
720 addr += start & (PAGE_SIZE - 1);
721 write_lock_irqsave(&ha->hw_lock, flags);
722
723 switch (size) {
724 case 1:
725 *(u8 *)data = readb(addr);
726 break;
727 case 2:
728 *(u16 *)data = readw(addr);
729 break;
730 case 4:
731 *(u32 *)data = readl(addr);
732 break;
733 case 8:
734 *(u64 *)data = readq(addr);
735 break;
736 default:
737 ret = -1;
738 break;
739 }
740 write_unlock_irqrestore(&ha->hw_lock, flags);
741
742 if (mem_ptr)
743 iounmap(mem_ptr);
744 return ret;
745 }
746
747 static int
748 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
749 u64 off, void *data, int size)
750 {
751 unsigned long flags;
752 void *addr = NULL;
753 int ret = 0;
754 u64 start;
755 uint8_t *mem_ptr = NULL;
756 unsigned long mem_base;
757 unsigned long mem_page;
758 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
759
760 write_lock_irqsave(&ha->hw_lock, flags);
761
762 /*
763 * If attempting to access unknown address or straddle hw windows,
764 * do not access.
765 */
766 start = qla82xx_pci_set_window(ha, off);
767 if ((start == -1UL) ||
768 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
769 write_unlock_irqrestore(&ha->hw_lock, flags);
770 ql_log(ql_log_fatal, vha, 0xb009,
771 "%s out of bount memory "
772 "access, offset is 0x%llx.\n",
773 QLA2XXX_DRIVER_NAME, off);
774 return -1;
775 }
776
777 write_unlock_irqrestore(&ha->hw_lock, flags);
778 mem_base = pci_resource_start(ha->pdev, 0);
779 mem_page = start & PAGE_MASK;
780 /* Map two pages whenever user tries to access addresses in two
781 * consecutive pages.
782 */
783 if (mem_page != ((start + size - 1) & PAGE_MASK))
784 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
785 else
786 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
787 if (mem_ptr == 0UL)
788 return -1;
789
790 addr = mem_ptr;
791 addr += start & (PAGE_SIZE - 1);
792 write_lock_irqsave(&ha->hw_lock, flags);
793
794 switch (size) {
795 case 1:
796 writeb(*(u8 *)data, addr);
797 break;
798 case 2:
799 writew(*(u16 *)data, addr);
800 break;
801 case 4:
802 writel(*(u32 *)data, addr);
803 break;
804 case 8:
805 writeq(*(u64 *)data, addr);
806 break;
807 default:
808 ret = -1;
809 break;
810 }
811 write_unlock_irqrestore(&ha->hw_lock, flags);
812 if (mem_ptr)
813 iounmap(mem_ptr);
814 return ret;
815 }
816
817 #define MTU_FUDGE_FACTOR 100
818 static unsigned long
819 qla82xx_decode_crb_addr(unsigned long addr)
820 {
821 int i;
822 unsigned long base_addr, offset, pci_base;
823
824 if (!qla82xx_crb_table_initialized)
825 qla82xx_crb_addr_transform_setup();
826
827 pci_base = ADDR_ERROR;
828 base_addr = addr & 0xfff00000;
829 offset = addr & 0x000fffff;
830
831 for (i = 0; i < MAX_CRB_XFORM; i++) {
832 if (crb_addr_xform[i] == base_addr) {
833 pci_base = i << 20;
834 break;
835 }
836 }
837 if (pci_base == ADDR_ERROR)
838 return pci_base;
839 return pci_base + offset;
840 }
841
842 static long rom_max_timeout = 100;
843 static long qla82xx_rom_lock_timeout = 100;
844
845 static int
846 qla82xx_rom_lock(struct qla_hw_data *ha)
847 {
848 int done = 0, timeout = 0;
849
850 while (!done) {
851 /* acquire semaphore2 from PCI HW block */
852 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
853 if (done == 1)
854 break;
855 if (timeout >= qla82xx_rom_lock_timeout)
856 return -1;
857 timeout++;
858 }
859 qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
860 return 0;
861 }
862
863 static void
864 qla82xx_rom_unlock(struct qla_hw_data *ha)
865 {
866 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
867 }
868
869 static int
870 qla82xx_wait_rom_busy(struct qla_hw_data *ha)
871 {
872 long timeout = 0;
873 long done = 0 ;
874 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
875
876 while (done == 0) {
877 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
878 done &= 4;
879 timeout++;
880 if (timeout >= rom_max_timeout) {
881 ql_dbg(ql_dbg_p3p, vha, 0xb00a,
882 "%s: Timeout reached waiting for rom busy.\n",
883 QLA2XXX_DRIVER_NAME);
884 return -1;
885 }
886 }
887 return 0;
888 }
889
890 static int
891 qla82xx_wait_rom_done(struct qla_hw_data *ha)
892 {
893 long timeout = 0;
894 long done = 0 ;
895 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
896
897 while (done == 0) {
898 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
899 done &= 2;
900 timeout++;
901 if (timeout >= rom_max_timeout) {
902 ql_dbg(ql_dbg_p3p, vha, 0xb00b,
903 "%s: Timeout reached waiting for rom done.\n",
904 QLA2XXX_DRIVER_NAME);
905 return -1;
906 }
907 }
908 return 0;
909 }
910
911 static int
912 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
913 {
914 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
915
916 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
917 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
918 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
919 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
920 qla82xx_wait_rom_busy(ha);
921 if (qla82xx_wait_rom_done(ha)) {
922 ql_log(ql_log_fatal, vha, 0x00ba,
923 "Error waiting for rom done.\n");
924 return -1;
925 }
926 /* Reset abyte_cnt and dummy_byte_cnt */
927 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
928 udelay(10);
929 cond_resched();
930 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
931 *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
932 return 0;
933 }
934
935 static int
936 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
937 {
938 int ret, loops = 0;
939 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
940
941 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
942 udelay(100);
943 schedule();
944 loops++;
945 }
946 if (loops >= 50000) {
947 ql_log(ql_log_fatal, vha, 0x00b9,
948 "Failed to aquire SEM2 lock.\n");
949 return -1;
950 }
951 ret = qla82xx_do_rom_fast_read(ha, addr, valp);
952 qla82xx_rom_unlock(ha);
953 return ret;
954 }
955
956 static int
957 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
958 {
959 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
960 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
961 qla82xx_wait_rom_busy(ha);
962 if (qla82xx_wait_rom_done(ha)) {
963 ql_log(ql_log_warn, vha, 0xb00c,
964 "Error waiting for rom done.\n");
965 return -1;
966 }
967 *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
968 return 0;
969 }
970
971 static int
972 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
973 {
974 long timeout = 0;
975 uint32_t done = 1 ;
976 uint32_t val;
977 int ret = 0;
978 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
979
980 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
981 while ((done != 0) && (ret == 0)) {
982 ret = qla82xx_read_status_reg(ha, &val);
983 done = val & 1;
984 timeout++;
985 udelay(10);
986 cond_resched();
987 if (timeout >= 50000) {
988 ql_log(ql_log_warn, vha, 0xb00d,
989 "Timeout reached waiting for write finish.\n");
990 return -1;
991 }
992 }
993 return ret;
994 }
995
996 static int
997 qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
998 {
999 uint32_t val;
1000 qla82xx_wait_rom_busy(ha);
1001 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1002 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1003 qla82xx_wait_rom_busy(ha);
1004 if (qla82xx_wait_rom_done(ha))
1005 return -1;
1006 if (qla82xx_read_status_reg(ha, &val) != 0)
1007 return -1;
1008 if ((val & 2) != 2)
1009 return -1;
1010 return 0;
1011 }
1012
1013 static int
1014 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1015 {
1016 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1017 if (qla82xx_flash_set_write_enable(ha))
1018 return -1;
1019 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1020 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1021 if (qla82xx_wait_rom_done(ha)) {
1022 ql_log(ql_log_warn, vha, 0xb00e,
1023 "Error waiting for rom done.\n");
1024 return -1;
1025 }
1026 return qla82xx_flash_wait_write_finish(ha);
1027 }
1028
1029 static int
1030 qla82xx_write_disable_flash(struct qla_hw_data *ha)
1031 {
1032 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1033 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1034 if (qla82xx_wait_rom_done(ha)) {
1035 ql_log(ql_log_warn, vha, 0xb00f,
1036 "Error waiting for rom done.\n");
1037 return -1;
1038 }
1039 return 0;
1040 }
1041
1042 static int
1043 ql82xx_rom_lock_d(struct qla_hw_data *ha)
1044 {
1045 int loops = 0;
1046 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1047
1048 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1049 udelay(100);
1050 cond_resched();
1051 loops++;
1052 }
1053 if (loops >= 50000) {
1054 ql_log(ql_log_warn, vha, 0xb010,
1055 "ROM lock failed.\n");
1056 return -1;
1057 }
1058 return 0;;
1059 }
1060
1061 static int
1062 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1063 uint32_t data)
1064 {
1065 int ret = 0;
1066 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1067
1068 ret = ql82xx_rom_lock_d(ha);
1069 if (ret < 0) {
1070 ql_log(ql_log_warn, vha, 0xb011,
1071 "ROM lock failed.\n");
1072 return ret;
1073 }
1074
1075 if (qla82xx_flash_set_write_enable(ha))
1076 goto done_write;
1077
1078 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1079 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1080 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1081 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1082 qla82xx_wait_rom_busy(ha);
1083 if (qla82xx_wait_rom_done(ha)) {
1084 ql_log(ql_log_warn, vha, 0xb012,
1085 "Error waiting for rom done.\n");
1086 ret = -1;
1087 goto done_write;
1088 }
1089
1090 ret = qla82xx_flash_wait_write_finish(ha);
1091
1092 done_write:
1093 qla82xx_rom_unlock(ha);
1094 return ret;
1095 }
1096
1097 /* This routine does CRB initialize sequence
1098 * to put the ISP into operational state
1099 */
1100 static int
1101 qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1102 {
1103 int addr, val;
1104 int i ;
1105 struct crb_addr_pair *buf;
1106 unsigned long off;
1107 unsigned offset, n;
1108 struct qla_hw_data *ha = vha->hw;
1109
1110 struct crb_addr_pair {
1111 long addr;
1112 long data;
1113 };
1114
1115 /* Halt all the indiviual PEGs and other blocks of the ISP */
1116 qla82xx_rom_lock(ha);
1117
1118 /* disable all I2Q */
1119 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1120 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1121 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1122 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1123 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1124 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1125
1126 /* disable all niu interrupts */
1127 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1128 /* disable xge rx/tx */
1129 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1130 /* disable xg1 rx/tx */
1131 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1132 /* disable sideband mac */
1133 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1134 /* disable ap0 mac */
1135 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1136 /* disable ap1 mac */
1137 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1138
1139 /* halt sre */
1140 val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1141 qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1142
1143 /* halt epg */
1144 qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1145
1146 /* halt timers */
1147 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1148 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1149 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1150 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1151 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1152 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1153
1154 /* halt pegs */
1155 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1156 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1157 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1158 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1159 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1160 msleep(20);
1161
1162 /* big hammer */
1163 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1164 /* don't reset CAM block on reset */
1165 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1166 else
1167 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1168
1169 /* reset ms */
1170 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1171 val |= (1 << 1);
1172 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1173 msleep(20);
1174
1175 /* unreset ms */
1176 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1177 val &= ~(1 << 1);
1178 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1179 msleep(20);
1180
1181 qla82xx_rom_unlock(ha);
1182
1183 /* Read the signature value from the flash.
1184 * Offset 0: Contain signature (0xcafecafe)
1185 * Offset 4: Offset and number of addr/value pairs
1186 * that present in CRB initialize sequence
1187 */
1188 if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1189 qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1190 ql_log(ql_log_fatal, vha, 0x006e,
1191 "Error Reading crb_init area: n: %08x.\n", n);
1192 return -1;
1193 }
1194
1195 /* Offset in flash = lower 16 bits
1196 * Number of enteries = upper 16 bits
1197 */
1198 offset = n & 0xffffU;
1199 n = (n >> 16) & 0xffffU;
1200
1201 /* number of addr/value pair should not exceed 1024 enteries */
1202 if (n >= 1024) {
1203 ql_log(ql_log_fatal, vha, 0x0071,
1204 "Card flash not initialized:n=0x%x.\n", n);
1205 return -1;
1206 }
1207
1208 ql_log(ql_log_info, vha, 0x0072,
1209 "%d CRB init values found in ROM.\n", n);
1210
1211 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1212 if (buf == NULL) {
1213 ql_log(ql_log_fatal, vha, 0x010c,
1214 "Unable to allocate memory.\n");
1215 return -1;
1216 }
1217
1218 for (i = 0; i < n; i++) {
1219 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1220 qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1221 kfree(buf);
1222 return -1;
1223 }
1224
1225 buf[i].addr = addr;
1226 buf[i].data = val;
1227 }
1228
1229 for (i = 0; i < n; i++) {
1230 /* Translate internal CRB initialization
1231 * address to PCI bus address
1232 */
1233 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1234 QLA82XX_PCI_CRBSPACE;
1235 /* Not all CRB addr/value pair to be written,
1236 * some of them are skipped
1237 */
1238
1239 /* skipping cold reboot MAGIC */
1240 if (off == QLA82XX_CAM_RAM(0x1fc))
1241 continue;
1242
1243 /* do not reset PCI */
1244 if (off == (ROMUSB_GLB + 0xbc))
1245 continue;
1246
1247 /* skip core clock, so that firmware can increase the clock */
1248 if (off == (ROMUSB_GLB + 0xc8))
1249 continue;
1250
1251 /* skip the function enable register */
1252 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1253 continue;
1254
1255 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1256 continue;
1257
1258 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1259 continue;
1260
1261 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1262 continue;
1263
1264 if (off == ADDR_ERROR) {
1265 ql_log(ql_log_fatal, vha, 0x0116,
1266 "Unknow addr: 0x%08lx.\n", buf[i].addr);
1267 continue;
1268 }
1269
1270 qla82xx_wr_32(ha, off, buf[i].data);
1271
1272 /* ISP requires much bigger delay to settle down,
1273 * else crb_window returns 0xffffffff
1274 */
1275 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1276 msleep(1000);
1277
1278 /* ISP requires millisec delay between
1279 * successive CRB register updation
1280 */
1281 msleep(1);
1282 }
1283
1284 kfree(buf);
1285
1286 /* Resetting the data and instruction cache */
1287 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1288 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1289 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1290
1291 /* Clear all protocol processing engines */
1292 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1293 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1294 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1295 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1296 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1297 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1298 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1299 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1300 return 0;
1301 }
1302
1303 static int
1304 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1305 u64 off, void *data, int size)
1306 {
1307 int i, j, ret = 0, loop, sz[2], off0;
1308 int scale, shift_amount, startword;
1309 uint32_t temp;
1310 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1311
1312 /*
1313 * If not MN, go check for MS or invalid.
1314 */
1315 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1316 mem_crb = QLA82XX_CRB_QDR_NET;
1317 else {
1318 mem_crb = QLA82XX_CRB_DDR_NET;
1319 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1320 return qla82xx_pci_mem_write_direct(ha,
1321 off, data, size);
1322 }
1323
1324 off0 = off & 0x7;
1325 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1326 sz[1] = size - sz[0];
1327
1328 off8 = off & 0xfffffff0;
1329 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1330 shift_amount = 4;
1331 scale = 2;
1332 startword = (off & 0xf)/8;
1333
1334 for (i = 0; i < loop; i++) {
1335 if (qla82xx_pci_mem_read_2M(ha, off8 +
1336 (i << shift_amount), &word[i * scale], 8))
1337 return -1;
1338 }
1339
1340 switch (size) {
1341 case 1:
1342 tmpw = *((uint8_t *)data);
1343 break;
1344 case 2:
1345 tmpw = *((uint16_t *)data);
1346 break;
1347 case 4:
1348 tmpw = *((uint32_t *)data);
1349 break;
1350 case 8:
1351 default:
1352 tmpw = *((uint64_t *)data);
1353 break;
1354 }
1355
1356 if (sz[0] == 8) {
1357 word[startword] = tmpw;
1358 } else {
1359 word[startword] &=
1360 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1361 word[startword] |= tmpw << (off0 * 8);
1362 }
1363 if (sz[1] != 0) {
1364 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1365 word[startword+1] |= tmpw >> (sz[0] * 8);
1366 }
1367
1368 for (i = 0; i < loop; i++) {
1369 temp = off8 + (i << shift_amount);
1370 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1371 temp = 0;
1372 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1373 temp = word[i * scale] & 0xffffffff;
1374 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1375 temp = (word[i * scale] >> 32) & 0xffffffff;
1376 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1377 temp = word[i*scale + 1] & 0xffffffff;
1378 qla82xx_wr_32(ha, mem_crb +
1379 MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1380 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1381 qla82xx_wr_32(ha, mem_crb +
1382 MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1383
1384 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1385 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1386 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1387 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1388
1389 for (j = 0; j < MAX_CTL_CHECK; j++) {
1390 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1391 if ((temp & MIU_TA_CTL_BUSY) == 0)
1392 break;
1393 }
1394
1395 if (j >= MAX_CTL_CHECK) {
1396 if (printk_ratelimit())
1397 dev_err(&ha->pdev->dev,
1398 "failed to write through agent.\n");
1399 ret = -1;
1400 break;
1401 }
1402 }
1403
1404 return ret;
1405 }
1406
1407 static int
1408 qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1409 {
1410 int i;
1411 long size = 0;
1412 long flashaddr = ha->flt_region_bootload << 2;
1413 long memaddr = BOOTLD_START;
1414 u64 data;
1415 u32 high, low;
1416 size = (IMAGE_START - BOOTLD_START) / 8;
1417
1418 for (i = 0; i < size; i++) {
1419 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1420 (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1421 return -1;
1422 }
1423 data = ((u64)high << 32) | low ;
1424 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1425 flashaddr += 8;
1426 memaddr += 8;
1427
1428 if (i % 0x1000 == 0)
1429 msleep(1);
1430 }
1431 udelay(100);
1432 read_lock(&ha->hw_lock);
1433 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1434 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1435 read_unlock(&ha->hw_lock);
1436 return 0;
1437 }
1438
1439 int
1440 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1441 u64 off, void *data, int size)
1442 {
1443 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1444 int shift_amount;
1445 uint32_t temp;
1446 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1447
1448 /*
1449 * If not MN, go check for MS or invalid.
1450 */
1451
1452 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1453 mem_crb = QLA82XX_CRB_QDR_NET;
1454 else {
1455 mem_crb = QLA82XX_CRB_DDR_NET;
1456 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1457 return qla82xx_pci_mem_read_direct(ha,
1458 off, data, size);
1459 }
1460
1461 off8 = off & 0xfffffff0;
1462 off0[0] = off & 0xf;
1463 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1464 shift_amount = 4;
1465 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1466 off0[1] = 0;
1467 sz[1] = size - sz[0];
1468
1469 for (i = 0; i < loop; i++) {
1470 temp = off8 + (i << shift_amount);
1471 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1472 temp = 0;
1473 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1474 temp = MIU_TA_CTL_ENABLE;
1475 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1476 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1477 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1478
1479 for (j = 0; j < MAX_CTL_CHECK; j++) {
1480 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1481 if ((temp & MIU_TA_CTL_BUSY) == 0)
1482 break;
1483 }
1484
1485 if (j >= MAX_CTL_CHECK) {
1486 if (printk_ratelimit())
1487 dev_err(&ha->pdev->dev,
1488 "failed to read through agent.\n");
1489 break;
1490 }
1491
1492 start = off0[i] >> 2;
1493 end = (off0[i] + sz[i] - 1) >> 2;
1494 for (k = start; k <= end; k++) {
1495 temp = qla82xx_rd_32(ha,
1496 mem_crb + MIU_TEST_AGT_RDDATA(k));
1497 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1498 }
1499 }
1500
1501 if (j >= MAX_CTL_CHECK)
1502 return -1;
1503
1504 if ((off0[0] & 7) == 0) {
1505 val = word[0];
1506 } else {
1507 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1508 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1509 }
1510
1511 switch (size) {
1512 case 1:
1513 *(uint8_t *)data = val;
1514 break;
1515 case 2:
1516 *(uint16_t *)data = val;
1517 break;
1518 case 4:
1519 *(uint32_t *)data = val;
1520 break;
1521 case 8:
1522 *(uint64_t *)data = val;
1523 break;
1524 }
1525 return 0;
1526 }
1527
1528
1529 static struct qla82xx_uri_table_desc *
1530 qla82xx_get_table_desc(const u8 *unirom, int section)
1531 {
1532 uint32_t i;
1533 struct qla82xx_uri_table_desc *directory =
1534 (struct qla82xx_uri_table_desc *)&unirom[0];
1535 __le32 offset;
1536 __le32 tab_type;
1537 __le32 entries = cpu_to_le32(directory->num_entries);
1538
1539 for (i = 0; i < entries; i++) {
1540 offset = cpu_to_le32(directory->findex) +
1541 (i * cpu_to_le32(directory->entry_size));
1542 tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1543
1544 if (tab_type == section)
1545 return (struct qla82xx_uri_table_desc *)&unirom[offset];
1546 }
1547
1548 return NULL;
1549 }
1550
1551 static struct qla82xx_uri_data_desc *
1552 qla82xx_get_data_desc(struct qla_hw_data *ha,
1553 u32 section, u32 idx_offset)
1554 {
1555 const u8 *unirom = ha->hablob->fw->data;
1556 int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1557 struct qla82xx_uri_table_desc *tab_desc = NULL;
1558 __le32 offset;
1559
1560 tab_desc = qla82xx_get_table_desc(unirom, section);
1561 if (!tab_desc)
1562 return NULL;
1563
1564 offset = cpu_to_le32(tab_desc->findex) +
1565 (cpu_to_le32(tab_desc->entry_size) * idx);
1566
1567 return (struct qla82xx_uri_data_desc *)&unirom[offset];
1568 }
1569
1570 static u8 *
1571 qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1572 {
1573 u32 offset = BOOTLD_START;
1574 struct qla82xx_uri_data_desc *uri_desc = NULL;
1575
1576 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1577 uri_desc = qla82xx_get_data_desc(ha,
1578 QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1579 if (uri_desc)
1580 offset = cpu_to_le32(uri_desc->findex);
1581 }
1582
1583 return (u8 *)&ha->hablob->fw->data[offset];
1584 }
1585
1586 static __le32
1587 qla82xx_get_fw_size(struct qla_hw_data *ha)
1588 {
1589 struct qla82xx_uri_data_desc *uri_desc = NULL;
1590
1591 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1592 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1593 QLA82XX_URI_FIRMWARE_IDX_OFF);
1594 if (uri_desc)
1595 return cpu_to_le32(uri_desc->size);
1596 }
1597
1598 return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1599 }
1600
1601 static u8 *
1602 qla82xx_get_fw_offs(struct qla_hw_data *ha)
1603 {
1604 u32 offset = IMAGE_START;
1605 struct qla82xx_uri_data_desc *uri_desc = NULL;
1606
1607 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1608 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1609 QLA82XX_URI_FIRMWARE_IDX_OFF);
1610 if (uri_desc)
1611 offset = cpu_to_le32(uri_desc->findex);
1612 }
1613
1614 return (u8 *)&ha->hablob->fw->data[offset];
1615 }
1616
1617 /* PCI related functions */
1618 char *
1619 qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
1620 {
1621 int pcie_reg;
1622 struct qla_hw_data *ha = vha->hw;
1623 char lwstr[6];
1624 uint16_t lnk;
1625
1626 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1627 pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
1628 ha->link_width = (lnk >> 4) & 0x3f;
1629
1630 strcpy(str, "PCIe (");
1631 strcat(str, "2.5Gb/s ");
1632 snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
1633 strcat(str, lwstr);
1634 return str;
1635 }
1636
1637 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1638 {
1639 unsigned long val = 0;
1640 u32 control;
1641
1642 switch (region) {
1643 case 0:
1644 val = 0;
1645 break;
1646 case 1:
1647 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1648 val = control + QLA82XX_MSIX_TBL_SPACE;
1649 break;
1650 }
1651 return val;
1652 }
1653
1654
1655 int
1656 qla82xx_iospace_config(struct qla_hw_data *ha)
1657 {
1658 uint32_t len = 0;
1659
1660 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1661 ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1662 "Failed to reserver selected regions.\n");
1663 goto iospace_error_exit;
1664 }
1665
1666 /* Use MMIO operations for all accesses. */
1667 if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1668 ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1669 "Region #0 not an MMIO resource, aborting.\n");
1670 goto iospace_error_exit;
1671 }
1672
1673 len = pci_resource_len(ha->pdev, 0);
1674 ha->nx_pcibase =
1675 (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1676 if (!ha->nx_pcibase) {
1677 ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1678 "Cannot remap pcibase MMIO, aborting.\n");
1679 pci_release_regions(ha->pdev);
1680 goto iospace_error_exit;
1681 }
1682
1683 /* Mapping of IO base pointer */
1684 ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1685 0xbc000 + (ha->pdev->devfn << 11));
1686
1687 if (!ql2xdbwr) {
1688 ha->nxdb_wr_ptr =
1689 (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1690 (ha->pdev->devfn << 12)), 4);
1691 if (!ha->nxdb_wr_ptr) {
1692 ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1693 "Cannot remap MMIO, aborting.\n");
1694 pci_release_regions(ha->pdev);
1695 goto iospace_error_exit;
1696 }
1697
1698 /* Mapping of IO base pointer,
1699 * door bell read and write pointer
1700 */
1701 ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1702 (ha->pdev->devfn * 8);
1703 } else {
1704 ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1705 QLA82XX_CAMRAM_DB1 :
1706 QLA82XX_CAMRAM_DB2);
1707 }
1708
1709 ha->max_req_queues = ha->max_rsp_queues = 1;
1710 ha->msix_count = ha->max_rsp_queues + 1;
1711 ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1712 "nx_pci_base=%p iobase=%p "
1713 "max_req_queues=%d msix_count=%d.\n",
1714 ha->nx_pcibase, ha->iobase,
1715 ha->max_req_queues, ha->msix_count);
1716 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1717 "nx_pci_base=%p iobase=%p "
1718 "max_req_queues=%d msix_count=%d.\n",
1719 ha->nx_pcibase, ha->iobase,
1720 ha->max_req_queues, ha->msix_count);
1721 return 0;
1722
1723 iospace_error_exit:
1724 return -ENOMEM;
1725 }
1726
1727 /* GS related functions */
1728
1729 /* Initialization related functions */
1730
1731 /**
1732 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1733 * @ha: HA context
1734 *
1735 * Returns 0 on success.
1736 */
1737 int
1738 qla82xx_pci_config(scsi_qla_host_t *vha)
1739 {
1740 struct qla_hw_data *ha = vha->hw;
1741 int ret;
1742
1743 pci_set_master(ha->pdev);
1744 ret = pci_set_mwi(ha->pdev);
1745 ha->chip_revision = ha->pdev->revision;
1746 ql_dbg(ql_dbg_init, vha, 0x0043,
1747 "Chip revision:%ld.\n",
1748 ha->chip_revision);
1749 return 0;
1750 }
1751
1752 /**
1753 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1754 * @ha: HA context
1755 *
1756 * Returns 0 on success.
1757 */
1758 void
1759 qla82xx_reset_chip(scsi_qla_host_t *vha)
1760 {
1761 struct qla_hw_data *ha = vha->hw;
1762 ha->isp_ops->disable_intrs(ha);
1763 }
1764
1765 void qla82xx_config_rings(struct scsi_qla_host *vha)
1766 {
1767 struct qla_hw_data *ha = vha->hw;
1768 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1769 struct init_cb_81xx *icb;
1770 struct req_que *req = ha->req_q_map[0];
1771 struct rsp_que *rsp = ha->rsp_q_map[0];
1772
1773 /* Setup ring parameters in initialization control block. */
1774 icb = (struct init_cb_81xx *)ha->init_cb;
1775 icb->request_q_outpointer = __constant_cpu_to_le16(0);
1776 icb->response_q_inpointer = __constant_cpu_to_le16(0);
1777 icb->request_q_length = cpu_to_le16(req->length);
1778 icb->response_q_length = cpu_to_le16(rsp->length);
1779 icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1780 icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1781 icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1782 icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1783
1784 WRT_REG_DWORD((unsigned long __iomem *)&reg->req_q_out[0], 0);
1785 WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_in[0], 0);
1786 WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_out[0], 0);
1787 }
1788
1789 void qla82xx_reset_adapter(struct scsi_qla_host *vha)
1790 {
1791 struct qla_hw_data *ha = vha->hw;
1792 vha->flags.online = 0;
1793 qla2x00_try_to_stop_firmware(vha);
1794 ha->isp_ops->disable_intrs(ha);
1795 }
1796
1797 static int
1798 qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1799 {
1800 u64 *ptr64;
1801 u32 i, flashaddr, size;
1802 __le64 data;
1803
1804 size = (IMAGE_START - BOOTLD_START) / 8;
1805
1806 ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1807 flashaddr = BOOTLD_START;
1808
1809 for (i = 0; i < size; i++) {
1810 data = cpu_to_le64(ptr64[i]);
1811 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1812 return -EIO;
1813 flashaddr += 8;
1814 }
1815
1816 flashaddr = FLASH_ADDR_START;
1817 size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1818 ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1819
1820 for (i = 0; i < size; i++) {
1821 data = cpu_to_le64(ptr64[i]);
1822
1823 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1824 return -EIO;
1825 flashaddr += 8;
1826 }
1827 udelay(100);
1828
1829 /* Write a magic value to CAMRAM register
1830 * at a specified offset to indicate
1831 * that all data is written and
1832 * ready for firmware to initialize.
1833 */
1834 qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1835
1836 read_lock(&ha->hw_lock);
1837 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1838 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1839 read_unlock(&ha->hw_lock);
1840 return 0;
1841 }
1842
1843 static int
1844 qla82xx_set_product_offset(struct qla_hw_data *ha)
1845 {
1846 struct qla82xx_uri_table_desc *ptab_desc = NULL;
1847 const uint8_t *unirom = ha->hablob->fw->data;
1848 uint32_t i;
1849 __le32 entries;
1850 __le32 flags, file_chiprev, offset;
1851 uint8_t chiprev = ha->chip_revision;
1852 /* Hardcoding mn_present flag for P3P */
1853 int mn_present = 0;
1854 uint32_t flagbit;
1855
1856 ptab_desc = qla82xx_get_table_desc(unirom,
1857 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1858 if (!ptab_desc)
1859 return -1;
1860
1861 entries = cpu_to_le32(ptab_desc->num_entries);
1862
1863 for (i = 0; i < entries; i++) {
1864 offset = cpu_to_le32(ptab_desc->findex) +
1865 (i * cpu_to_le32(ptab_desc->entry_size));
1866 flags = cpu_to_le32(*((int *)&unirom[offset] +
1867 QLA82XX_URI_FLAGS_OFF));
1868 file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1869 QLA82XX_URI_CHIP_REV_OFF));
1870
1871 flagbit = mn_present ? 1 : 2;
1872
1873 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1874 ha->file_prd_off = offset;
1875 return 0;
1876 }
1877 }
1878 return -1;
1879 }
1880
1881 int
1882 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1883 {
1884 __le32 val;
1885 uint32_t min_size;
1886 struct qla_hw_data *ha = vha->hw;
1887 const struct firmware *fw = ha->hablob->fw;
1888
1889 ha->fw_type = fw_type;
1890
1891 if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1892 if (qla82xx_set_product_offset(ha))
1893 return -EINVAL;
1894
1895 min_size = QLA82XX_URI_FW_MIN_SIZE;
1896 } else {
1897 val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1898 if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1899 return -EINVAL;
1900
1901 min_size = QLA82XX_FW_MIN_SIZE;
1902 }
1903
1904 if (fw->size < min_size)
1905 return -EINVAL;
1906 return 0;
1907 }
1908
1909 static int
1910 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1911 {
1912 u32 val = 0;
1913 int retries = 60;
1914 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1915
1916 do {
1917 read_lock(&ha->hw_lock);
1918 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1919 read_unlock(&ha->hw_lock);
1920
1921 switch (val) {
1922 case PHAN_INITIALIZE_COMPLETE:
1923 case PHAN_INITIALIZE_ACK:
1924 return QLA_SUCCESS;
1925 case PHAN_INITIALIZE_FAILED:
1926 break;
1927 default:
1928 break;
1929 }
1930 ql_log(ql_log_info, vha, 0x00a8,
1931 "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1932 val, retries);
1933
1934 msleep(500);
1935
1936 } while (--retries);
1937
1938 ql_log(ql_log_fatal, vha, 0x00a9,
1939 "Cmd Peg initialization failed: 0x%x.\n", val);
1940
1941 val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1942 read_lock(&ha->hw_lock);
1943 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1944 read_unlock(&ha->hw_lock);
1945 return QLA_FUNCTION_FAILED;
1946 }
1947
1948 static int
1949 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1950 {
1951 u32 val = 0;
1952 int retries = 60;
1953 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1954
1955 do {
1956 read_lock(&ha->hw_lock);
1957 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1958 read_unlock(&ha->hw_lock);
1959
1960 switch (val) {
1961 case PHAN_INITIALIZE_COMPLETE:
1962 case PHAN_INITIALIZE_ACK:
1963 return QLA_SUCCESS;
1964 case PHAN_INITIALIZE_FAILED:
1965 break;
1966 default:
1967 break;
1968 }
1969 ql_log(ql_log_info, vha, 0x00ab,
1970 "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1971 val, retries);
1972
1973 msleep(500);
1974
1975 } while (--retries);
1976
1977 ql_log(ql_log_fatal, vha, 0x00ac,
1978 "Rcv Peg initializatin failed: 0x%x.\n", val);
1979 read_lock(&ha->hw_lock);
1980 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1981 read_unlock(&ha->hw_lock);
1982 return QLA_FUNCTION_FAILED;
1983 }
1984
1985 /* ISR related functions */
1986 uint32_t qla82xx_isr_int_target_mask_enable[8] = {
1987 ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
1988 ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
1989 ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
1990 ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
1991 };
1992
1993 uint32_t qla82xx_isr_int_target_status[8] = {
1994 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
1995 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
1996 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
1997 ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
1998 };
1999
2000 static struct qla82xx_legacy_intr_set legacy_intr[] = \
2001 QLA82XX_LEGACY_INTR_CONFIG;
2002
2003 /*
2004 * qla82xx_mbx_completion() - Process mailbox command completions.
2005 * @ha: SCSI driver HA context
2006 * @mb0: Mailbox0 register
2007 */
2008 static void
2009 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2010 {
2011 uint16_t cnt;
2012 uint16_t __iomem *wptr;
2013 struct qla_hw_data *ha = vha->hw;
2014 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2015 wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
2016
2017 /* Load return mailbox registers. */
2018 ha->flags.mbox_int = 1;
2019 ha->mailbox_out[0] = mb0;
2020
2021 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2022 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2023 wptr++;
2024 }
2025
2026 if (ha->mcp) {
2027 ql_dbg(ql_dbg_async, vha, 0x5052,
2028 "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
2029 } else {
2030 ql_dbg(ql_dbg_async, vha, 0x5053,
2031 "MBX pointer ERROR.\n");
2032 }
2033 }
2034
2035 /*
2036 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2037 * @irq:
2038 * @dev_id: SCSI driver HA context
2039 * @regs:
2040 *
2041 * Called by system whenever the host adapter generates an interrupt.
2042 *
2043 * Returns handled flag.
2044 */
2045 irqreturn_t
2046 qla82xx_intr_handler(int irq, void *dev_id)
2047 {
2048 scsi_qla_host_t *vha;
2049 struct qla_hw_data *ha;
2050 struct rsp_que *rsp;
2051 struct device_reg_82xx __iomem *reg;
2052 int status = 0, status1 = 0;
2053 unsigned long flags;
2054 unsigned long iter;
2055 uint32_t stat = 0;
2056 uint16_t mb[4];
2057
2058 rsp = (struct rsp_que *) dev_id;
2059 if (!rsp) {
2060 printk(KERN_INFO
2061 "%s(): NULL response queue pointer.\n", __func__);
2062 return IRQ_NONE;
2063 }
2064 ha = rsp->hw;
2065
2066 if (!ha->flags.msi_enabled) {
2067 status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2068 if (!(status & ha->nx_legacy_intr.int_vec_bit))
2069 return IRQ_NONE;
2070
2071 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2072 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2073 return IRQ_NONE;
2074 }
2075
2076 /* clear the interrupt */
2077 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2078
2079 /* read twice to ensure write is flushed */
2080 qla82xx_rd_32(ha, ISR_INT_VECTOR);
2081 qla82xx_rd_32(ha, ISR_INT_VECTOR);
2082
2083 reg = &ha->iobase->isp82;
2084
2085 spin_lock_irqsave(&ha->hardware_lock, flags);
2086 vha = pci_get_drvdata(ha->pdev);
2087 for (iter = 1; iter--; ) {
2088
2089 if (RD_REG_DWORD(&reg->host_int)) {
2090 stat = RD_REG_DWORD(&reg->host_status);
2091
2092 switch (stat & 0xff) {
2093 case 0x1:
2094 case 0x2:
2095 case 0x10:
2096 case 0x11:
2097 qla82xx_mbx_completion(vha, MSW(stat));
2098 status |= MBX_INTERRUPT;
2099 break;
2100 case 0x12:
2101 mb[0] = MSW(stat);
2102 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2103 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2104 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2105 qla2x00_async_event(vha, rsp, mb);
2106 break;
2107 case 0x13:
2108 qla24xx_process_response_queue(vha, rsp);
2109 break;
2110 default:
2111 ql_dbg(ql_dbg_async, vha, 0x5054,
2112 "Unrecognized interrupt type (%d).\n",
2113 stat & 0xff);
2114 break;
2115 }
2116 }
2117 WRT_REG_DWORD(&reg->host_int, 0);
2118 }
2119 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2120 if (!ha->flags.msi_enabled)
2121 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2122
2123 #ifdef QL_DEBUG_LEVEL_17
2124 if (!irq && ha->flags.eeh_busy)
2125 ql_log(ql_log_warn, vha, 0x503d,
2126 "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2127 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2128 #endif
2129
2130 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2131 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2132 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2133 complete(&ha->mbx_intr_comp);
2134 }
2135 return IRQ_HANDLED;
2136 }
2137
2138 irqreturn_t
2139 qla82xx_msix_default(int irq, void *dev_id)
2140 {
2141 scsi_qla_host_t *vha;
2142 struct qla_hw_data *ha;
2143 struct rsp_que *rsp;
2144 struct device_reg_82xx __iomem *reg;
2145 int status = 0;
2146 unsigned long flags;
2147 uint32_t stat = 0;
2148 uint16_t mb[4];
2149
2150 rsp = (struct rsp_que *) dev_id;
2151 if (!rsp) {
2152 printk(KERN_INFO
2153 "%s(): NULL response queue pointer.\n", __func__);
2154 return IRQ_NONE;
2155 }
2156 ha = rsp->hw;
2157
2158 reg = &ha->iobase->isp82;
2159
2160 spin_lock_irqsave(&ha->hardware_lock, flags);
2161 vha = pci_get_drvdata(ha->pdev);
2162 do {
2163 if (RD_REG_DWORD(&reg->host_int)) {
2164 stat = RD_REG_DWORD(&reg->host_status);
2165
2166 switch (stat & 0xff) {
2167 case 0x1:
2168 case 0x2:
2169 case 0x10:
2170 case 0x11:
2171 qla82xx_mbx_completion(vha, MSW(stat));
2172 status |= MBX_INTERRUPT;
2173 break;
2174 case 0x12:
2175 mb[0] = MSW(stat);
2176 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2177 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2178 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2179 qla2x00_async_event(vha, rsp, mb);
2180 break;
2181 case 0x13:
2182 qla24xx_process_response_queue(vha, rsp);
2183 break;
2184 default:
2185 ql_dbg(ql_dbg_async, vha, 0x5041,
2186 "Unrecognized interrupt type (%d).\n",
2187 stat & 0xff);
2188 break;
2189 }
2190 }
2191 WRT_REG_DWORD(&reg->host_int, 0);
2192 } while (0);
2193
2194 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2195
2196 #ifdef QL_DEBUG_LEVEL_17
2197 if (!irq && ha->flags.eeh_busy)
2198 ql_log(ql_log_warn, vha, 0x5044,
2199 "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2200 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2201 #endif
2202
2203 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2204 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2205 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2206 complete(&ha->mbx_intr_comp);
2207 }
2208 return IRQ_HANDLED;
2209 }
2210
2211 irqreturn_t
2212 qla82xx_msix_rsp_q(int irq, void *dev_id)
2213 {
2214 scsi_qla_host_t *vha;
2215 struct qla_hw_data *ha;
2216 struct rsp_que *rsp;
2217 struct device_reg_82xx __iomem *reg;
2218 unsigned long flags;
2219
2220 rsp = (struct rsp_que *) dev_id;
2221 if (!rsp) {
2222 printk(KERN_INFO
2223 "%s(): NULL response queue pointer.\n", __func__);
2224 return IRQ_NONE;
2225 }
2226
2227 ha = rsp->hw;
2228 reg = &ha->iobase->isp82;
2229 spin_lock_irqsave(&ha->hardware_lock, flags);
2230 vha = pci_get_drvdata(ha->pdev);
2231 qla24xx_process_response_queue(vha, rsp);
2232 WRT_REG_DWORD(&reg->host_int, 0);
2233 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2234 return IRQ_HANDLED;
2235 }
2236
2237 void
2238 qla82xx_poll(int irq, void *dev_id)
2239 {
2240 scsi_qla_host_t *vha;
2241 struct qla_hw_data *ha;
2242 struct rsp_que *rsp;
2243 struct device_reg_82xx __iomem *reg;
2244 int status = 0;
2245 uint32_t stat;
2246 uint16_t mb[4];
2247 unsigned long flags;
2248
2249 rsp = (struct rsp_que *) dev_id;
2250 if (!rsp) {
2251 printk(KERN_INFO
2252 "%s(): NULL response queue pointer.\n", __func__);
2253 return;
2254 }
2255 ha = rsp->hw;
2256
2257 reg = &ha->iobase->isp82;
2258 spin_lock_irqsave(&ha->hardware_lock, flags);
2259 vha = pci_get_drvdata(ha->pdev);
2260
2261 if (RD_REG_DWORD(&reg->host_int)) {
2262 stat = RD_REG_DWORD(&reg->host_status);
2263 switch (stat & 0xff) {
2264 case 0x1:
2265 case 0x2:
2266 case 0x10:
2267 case 0x11:
2268 qla82xx_mbx_completion(vha, MSW(stat));
2269 status |= MBX_INTERRUPT;
2270 break;
2271 case 0x12:
2272 mb[0] = MSW(stat);
2273 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2274 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2275 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2276 qla2x00_async_event(vha, rsp, mb);
2277 break;
2278 case 0x13:
2279 qla24xx_process_response_queue(vha, rsp);
2280 break;
2281 default:
2282 ql_dbg(ql_dbg_p3p, vha, 0xb013,
2283 "Unrecognized interrupt type (%d).\n",
2284 stat * 0xff);
2285 break;
2286 }
2287 }
2288 WRT_REG_DWORD(&reg->host_int, 0);
2289 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2290 }
2291
2292 void
2293 qla82xx_enable_intrs(struct qla_hw_data *ha)
2294 {
2295 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2296 qla82xx_mbx_intr_enable(vha);
2297 spin_lock_irq(&ha->hardware_lock);
2298 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2299 spin_unlock_irq(&ha->hardware_lock);
2300 ha->interrupts_on = 1;
2301 }
2302
2303 void
2304 qla82xx_disable_intrs(struct qla_hw_data *ha)
2305 {
2306 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2307 qla82xx_mbx_intr_disable(vha);
2308 spin_lock_irq(&ha->hardware_lock);
2309 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2310 spin_unlock_irq(&ha->hardware_lock);
2311 ha->interrupts_on = 0;
2312 }
2313
2314 void qla82xx_init_flags(struct qla_hw_data *ha)
2315 {
2316 struct qla82xx_legacy_intr_set *nx_legacy_intr;
2317
2318 /* ISP 8021 initializations */
2319 rwlock_init(&ha->hw_lock);
2320 ha->qdr_sn_window = -1;
2321 ha->ddr_mn_window = -1;
2322 ha->curr_window = 255;
2323 ha->portnum = PCI_FUNC(ha->pdev->devfn);
2324 nx_legacy_intr = &legacy_intr[ha->portnum];
2325 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2326 ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2327 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2328 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2329 }
2330
2331 inline void
2332 qla82xx_set_drv_active(scsi_qla_host_t *vha)
2333 {
2334 uint32_t drv_active;
2335 struct qla_hw_data *ha = vha->hw;
2336
2337 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2338
2339 /* If reset value is all FF's, initialize DRV_ACTIVE */
2340 if (drv_active == 0xffffffff) {
2341 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2342 QLA82XX_DRV_NOT_ACTIVE);
2343 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2344 }
2345 drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2346 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2347 }
2348
2349 inline void
2350 qla82xx_clear_drv_active(struct qla_hw_data *ha)
2351 {
2352 uint32_t drv_active;
2353
2354 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2355 drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2356 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2357 }
2358
2359 static inline int
2360 qla82xx_need_reset(struct qla_hw_data *ha)
2361 {
2362 uint32_t drv_state;
2363 int rval;
2364
2365 if (ha->flags.isp82xx_reset_owner)
2366 return 1;
2367 else {
2368 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2369 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2370 return rval;
2371 }
2372 }
2373
2374 static inline void
2375 qla82xx_set_rst_ready(struct qla_hw_data *ha)
2376 {
2377 uint32_t drv_state;
2378 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2379
2380 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2381
2382 /* If reset value is all FF's, initialize DRV_STATE */
2383 if (drv_state == 0xffffffff) {
2384 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2385 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2386 }
2387 drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2388 ql_dbg(ql_dbg_init, vha, 0x00bb,
2389 "drv_state = 0x%08x.\n", drv_state);
2390 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2391 }
2392
2393 static inline void
2394 qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2395 {
2396 uint32_t drv_state;
2397
2398 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2399 drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2400 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2401 }
2402
2403 static inline void
2404 qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2405 {
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
2413 void
2414 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2415 {
2416 struct qla_hw_data *ha = vha->hw;
2417 uint32_t qsnt_state;
2418
2419 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2420 qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2421 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2422 }
2423
2424 static int
2425 qla82xx_load_fw(scsi_qla_host_t *vha)
2426 {
2427 int rst;
2428 struct fw_blob *blob;
2429 struct qla_hw_data *ha = vha->hw;
2430
2431 if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2432 ql_log(ql_log_fatal, vha, 0x009f,
2433 "Error during CRB initialization.\n");
2434 return QLA_FUNCTION_FAILED;
2435 }
2436 udelay(500);
2437
2438 /* Bring QM and CAMRAM out of reset */
2439 rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2440 rst &= ~((1 << 28) | (1 << 24));
2441 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2442
2443 /*
2444 * FW Load priority:
2445 * 1) Operational firmware residing in flash.
2446 * 2) Firmware via request-firmware interface (.bin file).
2447 */
2448 if (ql2xfwloadbin == 2)
2449 goto try_blob_fw;
2450
2451 ql_log(ql_log_info, vha, 0x00a0,
2452 "Attempting to load firmware from flash.\n");
2453
2454 if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2455 ql_log(ql_log_info, vha, 0x00a1,
2456 "Firmware loaded successully from flash.\n");
2457 return QLA_SUCCESS;
2458 } else {
2459 ql_log(ql_log_warn, vha, 0x0108,
2460 "Firmware load from flash failed.\n");
2461 }
2462
2463 try_blob_fw:
2464 ql_log(ql_log_info, vha, 0x00a2,
2465 "Attempting to load firmware from blob.\n");
2466
2467 /* Load firmware blob. */
2468 blob = ha->hablob = qla2x00_request_firmware(vha);
2469 if (!blob) {
2470 ql_log(ql_log_fatal, vha, 0x00a3,
2471 "Firmware image not preset.\n");
2472 goto fw_load_failed;
2473 }
2474
2475 /* Validating firmware blob */
2476 if (qla82xx_validate_firmware_blob(vha,
2477 QLA82XX_FLASH_ROMIMAGE)) {
2478 /* Fallback to URI format */
2479 if (qla82xx_validate_firmware_blob(vha,
2480 QLA82XX_UNIFIED_ROMIMAGE)) {
2481 ql_log(ql_log_fatal, vha, 0x00a4,
2482 "No valid firmware image found.\n");
2483 return QLA_FUNCTION_FAILED;
2484 }
2485 }
2486
2487 if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2488 ql_log(ql_log_info, vha, 0x00a5,
2489 "Firmware loaded successfully from binary blob.\n");
2490 return QLA_SUCCESS;
2491 } else {
2492 ql_log(ql_log_fatal, vha, 0x00a6,
2493 "Firmware load failed for binary blob.\n");
2494 blob->fw = NULL;
2495 blob = NULL;
2496 goto fw_load_failed;
2497 }
2498 return QLA_SUCCESS;
2499
2500 fw_load_failed:
2501 return QLA_FUNCTION_FAILED;
2502 }
2503
2504 int
2505 qla82xx_start_firmware(scsi_qla_host_t *vha)
2506 {
2507 int pcie_cap;
2508 uint16_t lnk;
2509 struct qla_hw_data *ha = vha->hw;
2510
2511 /* scrub dma mask expansion register */
2512 qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2513
2514 /* Put both the PEG CMD and RCV PEG to default state
2515 * of 0 before resetting the hardware
2516 */
2517 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2518 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2519
2520 /* Overwrite stale initialization register values */
2521 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2522 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2523
2524 if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2525 ql_log(ql_log_fatal, vha, 0x00a7,
2526 "Error trying to start fw.\n");
2527 return QLA_FUNCTION_FAILED;
2528 }
2529
2530 /* Handshake with the card before we register the devices. */
2531 if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2532 ql_log(ql_log_fatal, vha, 0x00aa,
2533 "Error during card handshake.\n");
2534 return QLA_FUNCTION_FAILED;
2535 }
2536
2537 /* Negotiated Link width */
2538 pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
2539 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
2540 ha->link_width = (lnk >> 4) & 0x3f;
2541
2542 /* Synchronize with Receive peg */
2543 return qla82xx_check_rcvpeg_state(ha);
2544 }
2545
2546 static inline int
2547 qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
2548 uint16_t tot_dsds)
2549 {
2550 uint32_t *cur_dsd = NULL;
2551 scsi_qla_host_t *vha;
2552 struct qla_hw_data *ha;
2553 struct scsi_cmnd *cmd;
2554 struct scatterlist *cur_seg;
2555 uint32_t *dsd_seg;
2556 void *next_dsd;
2557 uint8_t avail_dsds;
2558 uint8_t first_iocb = 1;
2559 uint32_t dsd_list_len;
2560 struct dsd_dma *dsd_ptr;
2561 struct ct6_dsd *ctx;
2562
2563 cmd = sp->cmd;
2564
2565 /* Update entry type to indicate Command Type 3 IOCB */
2566 *((uint32_t *)(&cmd_pkt->entry_type)) =
2567 __constant_cpu_to_le32(COMMAND_TYPE_6);
2568
2569 /* No data transfer */
2570 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
2571 cmd_pkt->byte_count = __constant_cpu_to_le32(0);
2572 return 0;
2573 }
2574
2575 vha = sp->fcport->vha;
2576 ha = vha->hw;
2577
2578 /* Set transfer direction */
2579 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
2580 cmd_pkt->control_flags =
2581 __constant_cpu_to_le16(CF_WRITE_DATA);
2582 ha->qla_stats.output_bytes += scsi_bufflen(cmd);
2583 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
2584 cmd_pkt->control_flags =
2585 __constant_cpu_to_le16(CF_READ_DATA);
2586 ha->qla_stats.input_bytes += scsi_bufflen(cmd);
2587 }
2588
2589 cur_seg = scsi_sglist(cmd);
2590 ctx = sp->ctx;
2591
2592 while (tot_dsds) {
2593 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
2594 QLA_DSDS_PER_IOCB : tot_dsds;
2595 tot_dsds -= avail_dsds;
2596 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
2597
2598 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
2599 struct dsd_dma, list);
2600 next_dsd = dsd_ptr->dsd_addr;
2601 list_del(&dsd_ptr->list);
2602 ha->gbl_dsd_avail--;
2603 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
2604 ctx->dsd_use_cnt++;
2605 ha->gbl_dsd_inuse++;
2606
2607 if (first_iocb) {
2608 first_iocb = 0;
2609 dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
2610 *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2611 *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
2612 cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len);
2613 } else {
2614 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2615 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
2616 *cur_dsd++ = cpu_to_le32(dsd_list_len);
2617 }
2618 cur_dsd = (uint32_t *)next_dsd;
2619 while (avail_dsds) {
2620 dma_addr_t sle_dma;
2621
2622 sle_dma = sg_dma_address(cur_seg);
2623 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2624 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2625 *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
2626 cur_seg = sg_next(cur_seg);
2627 avail_dsds--;
2628 }
2629 }
2630
2631 /* Null termination */
2632 *cur_dsd++ = 0;
2633 *cur_dsd++ = 0;
2634 *cur_dsd++ = 0;
2635 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
2636 return 0;
2637 }
2638
2639 /*
2640 * qla82xx_calc_dsd_lists() - Determine number of DSD list required
2641 * for Command Type 6.
2642 *
2643 * @dsds: number of data segment decriptors needed
2644 *
2645 * Returns the number of dsd list needed to store @dsds.
2646 */
2647 inline uint16_t
2648 qla82xx_calc_dsd_lists(uint16_t dsds)
2649 {
2650 uint16_t dsd_lists = 0;
2651
2652 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
2653 if (dsds % QLA_DSDS_PER_IOCB)
2654 dsd_lists++;
2655 return dsd_lists;
2656 }
2657
2658 /*
2659 * qla82xx_start_scsi() - Send a SCSI command to the ISP
2660 * @sp: command to send to the ISP
2661 *
2662 * Returns non-zero if a failure occurred, else zero.
2663 */
2664 int
2665 qla82xx_start_scsi(srb_t *sp)
2666 {
2667 int ret, nseg;
2668 unsigned long flags;
2669 struct scsi_cmnd *cmd;
2670 uint32_t *clr_ptr;
2671 uint32_t index;
2672 uint32_t handle;
2673 uint16_t cnt;
2674 uint16_t req_cnt;
2675 uint16_t tot_dsds;
2676 struct device_reg_82xx __iomem *reg;
2677 uint32_t dbval;
2678 uint32_t *fcp_dl;
2679 uint8_t additional_cdb_len;
2680 struct ct6_dsd *ctx;
2681 struct scsi_qla_host *vha = sp->fcport->vha;
2682 struct qla_hw_data *ha = vha->hw;
2683 struct req_que *req = NULL;
2684 struct rsp_que *rsp = NULL;
2685 char tag[2];
2686
2687 /* Setup device pointers. */
2688 ret = 0;
2689 reg = &ha->iobase->isp82;
2690 cmd = sp->cmd;
2691 req = vha->req;
2692 rsp = ha->rsp_q_map[0];
2693
2694 /* So we know we haven't pci_map'ed anything yet */
2695 tot_dsds = 0;
2696
2697 dbval = 0x04 | (ha->portnum << 5);
2698
2699 /* Send marker if required */
2700 if (vha->marker_needed != 0) {
2701 if (qla2x00_marker(vha, req,
2702 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
2703 ql_log(ql_log_warn, vha, 0x300c,
2704 "qla2x00_marker failed for cmd=%p.\n", cmd);
2705 return QLA_FUNCTION_FAILED;
2706 }
2707 vha->marker_needed = 0;
2708 }
2709
2710 /* Acquire ring specific lock */
2711 spin_lock_irqsave(&ha->hardware_lock, flags);
2712
2713 /* Check for room in outstanding command list. */
2714 handle = req->current_outstanding_cmd;
2715 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2716 handle++;
2717 if (handle == MAX_OUTSTANDING_COMMANDS)
2718 handle = 1;
2719 if (!req->outstanding_cmds[handle])
2720 break;
2721 }
2722 if (index == MAX_OUTSTANDING_COMMANDS)
2723 goto queuing_error;
2724
2725 /* Map the sg table so we have an accurate count of sg entries needed */
2726 if (scsi_sg_count(cmd)) {
2727 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2728 scsi_sg_count(cmd), cmd->sc_data_direction);
2729 if (unlikely(!nseg))
2730 goto queuing_error;
2731 } else
2732 nseg = 0;
2733
2734 tot_dsds = nseg;
2735
2736 if (tot_dsds > ql2xshiftctondsd) {
2737 struct cmd_type_6 *cmd_pkt;
2738 uint16_t more_dsd_lists = 0;
2739 struct dsd_dma *dsd_ptr;
2740 uint16_t i;
2741
2742 more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds);
2743 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
2744 ql_dbg(ql_dbg_io, vha, 0x300d,
2745 "Num of DSD list %d is than %d for cmd=%p.\n",
2746 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
2747 cmd);
2748 goto queuing_error;
2749 }
2750
2751 if (more_dsd_lists <= ha->gbl_dsd_avail)
2752 goto sufficient_dsds;
2753 else
2754 more_dsd_lists -= ha->gbl_dsd_avail;
2755
2756 for (i = 0; i < more_dsd_lists; i++) {
2757 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
2758 if (!dsd_ptr) {
2759 ql_log(ql_log_fatal, vha, 0x300e,
2760 "Failed to allocate memory for dsd_dma "
2761 "for cmd=%p.\n", cmd);
2762 goto queuing_error;
2763 }
2764
2765 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
2766 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
2767 if (!dsd_ptr->dsd_addr) {
2768 kfree(dsd_ptr);
2769 ql_log(ql_log_fatal, vha, 0x300f,
2770 "Failed to allocate memory for dsd_addr "
2771 "for cmd=%p.\n", cmd);
2772 goto queuing_error;
2773 }
2774 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
2775 ha->gbl_dsd_avail++;
2776 }
2777
2778 sufficient_dsds:
2779 req_cnt = 1;
2780
2781 if (req->cnt < (req_cnt + 2)) {
2782 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2783 &reg->req_q_out[0]);
2784 if (req->ring_index < cnt)
2785 req->cnt = cnt - req->ring_index;
2786 else
2787 req->cnt = req->length -
2788 (req->ring_index - cnt);
2789 }
2790
2791 if (req->cnt < (req_cnt + 2))
2792 goto queuing_error;
2793
2794 ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
2795 if (!sp->ctx) {
2796 ql_log(ql_log_fatal, vha, 0x3010,
2797 "Failed to allocate ctx for cmd=%p.\n", cmd);
2798 goto queuing_error;
2799 }
2800 memset(ctx, 0, sizeof(struct ct6_dsd));
2801 ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
2802 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
2803 if (!ctx->fcp_cmnd) {
2804 ql_log(ql_log_fatal, vha, 0x3011,
2805 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
2806 goto queuing_error_fcp_cmnd;
2807 }
2808
2809 /* Initialize the DSD list and dma handle */
2810 INIT_LIST_HEAD(&ctx->dsd_list);
2811 ctx->dsd_use_cnt = 0;
2812
2813 if (cmd->cmd_len > 16) {
2814 additional_cdb_len = cmd->cmd_len - 16;
2815 if ((cmd->cmd_len % 4) != 0) {
2816 /* SCSI command bigger than 16 bytes must be
2817 * multiple of 4
2818 */
2819 ql_log(ql_log_warn, vha, 0x3012,
2820 "scsi cmd len %d not multiple of 4 "
2821 "for cmd=%p.\n", cmd->cmd_len, cmd);
2822 goto queuing_error_fcp_cmnd;
2823 }
2824 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
2825 } else {
2826 additional_cdb_len = 0;
2827 ctx->fcp_cmnd_len = 12 + 16 + 4;
2828 }
2829
2830 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
2831 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2832
2833 /* Zero out remaining portion of packet. */
2834 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
2835 clr_ptr = (uint32_t *)cmd_pkt + 2;
2836 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2837 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2838
2839 /* Set NPORT-ID and LUN number*/
2840 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2841 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2842 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2843 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2844 cmd_pkt->vp_index = sp->fcport->vp_idx;
2845
2846 /* Build IOCB segments */
2847 if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
2848 goto queuing_error_fcp_cmnd;
2849
2850 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2851 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2852
2853 /* build FCP_CMND IU */
2854 memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
2855 int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
2856 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
2857
2858 if (cmd->sc_data_direction == DMA_TO_DEVICE)
2859 ctx->fcp_cmnd->additional_cdb_len |= 1;
2860 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
2861 ctx->fcp_cmnd->additional_cdb_len |= 2;
2862
2863 /*
2864 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2865 */
2866 if (scsi_populate_tag_msg(cmd, tag)) {
2867 switch (tag[0]) {
2868 case HEAD_OF_QUEUE_TAG:
2869 ctx->fcp_cmnd->task_attribute =
2870 TSK_HEAD_OF_QUEUE;
2871 break;
2872 case ORDERED_QUEUE_TAG:
2873 ctx->fcp_cmnd->task_attribute =
2874 TSK_ORDERED;
2875 break;
2876 }
2877 }
2878
2879 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
2880
2881 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
2882 additional_cdb_len);
2883 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
2884
2885 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
2886 cmd_pkt->fcp_cmnd_dseg_address[0] =
2887 cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
2888 cmd_pkt->fcp_cmnd_dseg_address[1] =
2889 cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
2890
2891 sp->flags |= SRB_FCP_CMND_DMA_VALID;
2892 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2893 /* Set total data segment count. */
2894 cmd_pkt->entry_count = (uint8_t)req_cnt;
2895 /* Specify response queue number where
2896 * completion should happen
2897 */
2898 cmd_pkt->entry_status = (uint8_t) rsp->id;
2899 } else {
2900 struct cmd_type_7 *cmd_pkt;
2901 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
2902 if (req->cnt < (req_cnt + 2)) {
2903 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2904 &reg->req_q_out[0]);
2905 if (req->ring_index < cnt)
2906 req->cnt = cnt - req->ring_index;
2907 else
2908 req->cnt = req->length -
2909 (req->ring_index - cnt);
2910 }
2911 if (req->cnt < (req_cnt + 2))
2912 goto queuing_error;
2913
2914 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
2915 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2916
2917 /* Zero out remaining portion of packet. */
2918 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
2919 clr_ptr = (uint32_t *)cmd_pkt + 2;
2920 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2921 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2922
2923 /* Set NPORT-ID and LUN number*/
2924 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2925 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2926 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2927 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2928 cmd_pkt->vp_index = sp->fcport->vp_idx;
2929
2930 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2931 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
2932 sizeof(cmd_pkt->lun));
2933
2934 /*
2935 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2936 */
2937 if (scsi_populate_tag_msg(cmd, tag)) {
2938 switch (tag[0]) {
2939 case HEAD_OF_QUEUE_TAG:
2940 cmd_pkt->task = TSK_HEAD_OF_QUEUE;
2941 break;
2942 case ORDERED_QUEUE_TAG:
2943 cmd_pkt->task = TSK_ORDERED;
2944 break;
2945 }
2946 }
2947
2948 /* Load SCSI command packet. */
2949 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2950 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2951
2952 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2953
2954 /* Build IOCB segments */
2955 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
2956
2957 /* Set total data segment count. */
2958 cmd_pkt->entry_count = (uint8_t)req_cnt;
2959 /* Specify response queue number where
2960 * completion should happen.
2961 */
2962 cmd_pkt->entry_status = (uint8_t) rsp->id;
2963
2964 }
2965 /* Build command packet. */
2966 req->current_outstanding_cmd = handle;
2967 req->outstanding_cmds[handle] = sp;
2968 sp->handle = handle;
2969 sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2970 req->cnt -= req_cnt;
2971 wmb();
2972
2973 /* Adjust ring index. */
2974 req->ring_index++;
2975 if (req->ring_index == req->length) {
2976 req->ring_index = 0;
2977 req->ring_ptr = req->ring;
2978 } else
2979 req->ring_ptr++;
2980
2981 sp->flags |= SRB_DMA_VALID;
2982
2983 /* Set chip new ring index. */
2984 /* write, read and verify logic */
2985 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2986 if (ql2xdbwr)
2987 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2988 else {
2989 WRT_REG_DWORD(
2990 (unsigned long __iomem *)ha->nxdb_wr_ptr,
2991 dbval);
2992 wmb();
2993 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2994 WRT_REG_DWORD(
2995 (unsigned long __iomem *)ha->nxdb_wr_ptr,
2996 dbval);
2997 wmb();
2998 }
2999 }
3000
3001 /* Manage unprocessed RIO/ZIO commands in response queue. */
3002 if (vha->flags.process_response_queue &&
3003 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
3004 qla24xx_process_response_queue(vha, rsp);
3005
3006 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3007 return QLA_SUCCESS;
3008
3009 queuing_error_fcp_cmnd:
3010 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3011 queuing_error:
3012 if (tot_dsds)
3013 scsi_dma_unmap(cmd);
3014
3015 if (sp->ctx) {
3016 mempool_free(sp->ctx, ha->ctx_mempool);
3017 sp->ctx = NULL;
3018 }
3019 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3020
3021 return QLA_FUNCTION_FAILED;
3022 }
3023
3024 static uint32_t *
3025 qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
3026 uint32_t length)
3027 {
3028 uint32_t i;
3029 uint32_t val;
3030 struct qla_hw_data *ha = vha->hw;
3031
3032 /* Dword reads to flash. */
3033 for (i = 0; i < length/4; i++, faddr += 4) {
3034 if (qla82xx_rom_fast_read(ha, faddr, &val)) {
3035 ql_log(ql_log_warn, vha, 0x0106,
3036 "Do ROM fast read failed.\n");
3037 goto done_read;
3038 }
3039 dwptr[i] = __constant_cpu_to_le32(val);
3040 }
3041 done_read:
3042 return dwptr;
3043 }
3044
3045 static int
3046 qla82xx_unprotect_flash(struct qla_hw_data *ha)
3047 {
3048 int ret;
3049 uint32_t val;
3050 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3051
3052 ret = ql82xx_rom_lock_d(ha);
3053 if (ret < 0) {
3054 ql_log(ql_log_warn, vha, 0xb014,
3055 "ROM Lock failed.\n");
3056 return ret;
3057 }
3058
3059 ret = qla82xx_read_status_reg(ha, &val);
3060 if (ret < 0)
3061 goto done_unprotect;
3062
3063 val &= ~(BLOCK_PROTECT_BITS << 2);
3064 ret = qla82xx_write_status_reg(ha, val);
3065 if (ret < 0) {
3066 val |= (BLOCK_PROTECT_BITS << 2);
3067 qla82xx_write_status_reg(ha, val);
3068 }
3069
3070 if (qla82xx_write_disable_flash(ha) != 0)
3071 ql_log(ql_log_warn, vha, 0xb015,
3072 "Write disable failed.\n");
3073
3074 done_unprotect:
3075 qla82xx_rom_unlock(ha);
3076 return ret;
3077 }
3078
3079 static int
3080 qla82xx_protect_flash(struct qla_hw_data *ha)
3081 {
3082 int ret;
3083 uint32_t val;
3084 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3085
3086 ret = ql82xx_rom_lock_d(ha);
3087 if (ret < 0) {
3088 ql_log(ql_log_warn, vha, 0xb016,
3089 "ROM Lock failed.\n");
3090 return ret;
3091 }
3092
3093 ret = qla82xx_read_status_reg(ha, &val);
3094 if (ret < 0)
3095 goto done_protect;
3096
3097 val |= (BLOCK_PROTECT_BITS << 2);
3098 /* LOCK all sectors */
3099 ret = qla82xx_write_status_reg(ha, val);
3100 if (ret < 0)
3101 ql_log(ql_log_warn, vha, 0xb017,
3102 "Write status register failed.\n");
3103
3104 if (qla82xx_write_disable_flash(ha) != 0)
3105 ql_log(ql_log_warn, vha, 0xb018,
3106 "Write disable failed.\n");
3107 done_protect:
3108 qla82xx_rom_unlock(ha);
3109 return ret;
3110 }
3111
3112 static int
3113 qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
3114 {
3115 int ret = 0;
3116 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3117
3118 ret = ql82xx_rom_lock_d(ha);
3119 if (ret < 0) {
3120 ql_log(ql_log_warn, vha, 0xb019,
3121 "ROM Lock failed.\n");
3122 return ret;
3123 }
3124
3125 qla82xx_flash_set_write_enable(ha);
3126 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
3127 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
3128 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
3129
3130 if (qla82xx_wait_rom_done(ha)) {
3131 ql_log(ql_log_warn, vha, 0xb01a,
3132 "Error waiting for rom done.\n");
3133 ret = -1;
3134 goto done;
3135 }
3136 ret = qla82xx_flash_wait_write_finish(ha);
3137 done:
3138 qla82xx_rom_unlock(ha);
3139 return ret;
3140 }
3141
3142 /*
3143 * Address and length are byte address
3144 */
3145 uint8_t *
3146 qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3147 uint32_t offset, uint32_t length)
3148 {
3149 scsi_block_requests(vha->host);
3150 qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
3151 scsi_unblock_requests(vha->host);
3152 return buf;
3153 }
3154
3155 static int
3156 qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
3157 uint32_t faddr, uint32_t dwords)
3158 {
3159 int ret;
3160 uint32_t liter;
3161 uint32_t sec_mask, rest_addr;
3162 dma_addr_t optrom_dma;
3163 void *optrom = NULL;
3164 int page_mode = 0;
3165 struct qla_hw_data *ha = vha->hw;
3166
3167 ret = -1;
3168
3169 /* Prepare burst-capable write on supported ISPs. */
3170 if (page_mode && !(faddr & 0xfff) &&
3171 dwords > OPTROM_BURST_DWORDS) {
3172 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
3173 &optrom_dma, GFP_KERNEL);
3174 if (!optrom) {
3175 ql_log(ql_log_warn, vha, 0xb01b,
3176 "Unable to allocate memory "
3177 "for optron burst write (%x KB).\n",
3178 OPTROM_BURST_SIZE / 1024);
3179 }
3180 }
3181
3182 rest_addr = ha->fdt_block_size - 1;
3183 sec_mask = ~rest_addr;
3184
3185 ret = qla82xx_unprotect_flash(ha);
3186 if (ret) {
3187 ql_log(ql_log_warn, vha, 0xb01c,
3188 "Unable to unprotect flash for update.\n");
3189 goto write_done;
3190 }
3191
3192 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3193 /* Are we at the beginning of a sector? */
3194 if ((faddr & rest_addr) == 0) {
3195
3196 ret = qla82xx_erase_sector(ha, faddr);
3197 if (ret) {
3198 ql_log(ql_log_warn, vha, 0xb01d,
3199 "Unable to erase sector: address=%x.\n",
3200 faddr);
3201 break;
3202 }
3203 }
3204
3205 /* Go with burst-write. */
3206 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
3207 /* Copy data to DMA'ble buffer. */
3208 memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
3209
3210 ret = qla2x00_load_ram(vha, optrom_dma,
3211 (ha->flash_data_off | faddr),
3212 OPTROM_BURST_DWORDS);
3213 if (ret != QLA_SUCCESS) {
3214 ql_log(ql_log_warn, vha, 0xb01e,
3215 "Unable to burst-write optrom segment "
3216 "(%x/%x/%llx).\n", ret,
3217 (ha->flash_data_off | faddr),
3218 (unsigned long long)optrom_dma);
3219 ql_log(ql_log_warn, vha, 0xb01f,
3220 "Reverting to slow-write.\n");
3221
3222 dma_free_coherent(&ha->pdev->dev,
3223 OPTROM_BURST_SIZE, optrom, optrom_dma);
3224 optrom = NULL;
3225 } else {
3226 liter += OPTROM_BURST_DWORDS - 1;
3227 faddr += OPTROM_BURST_DWORDS - 1;
3228 dwptr += OPTROM_BURST_DWORDS - 1;
3229 continue;
3230 }
3231 }
3232
3233 ret = qla82xx_write_flash_dword(ha, faddr,
3234 cpu_to_le32(*dwptr));
3235 if (ret) {
3236 ql_dbg(ql_dbg_p3p, vha, 0xb020,
3237 "Unable to program flash address=%x data=%x.\n",
3238 faddr, *dwptr);
3239 break;
3240 }
3241 }
3242
3243 ret = qla82xx_protect_flash(ha);
3244 if (ret)
3245 ql_log(ql_log_warn, vha, 0xb021,
3246 "Unable to protect flash after update.\n");
3247 write_done:
3248 if (optrom)
3249 dma_free_coherent(&ha->pdev->dev,
3250 OPTROM_BURST_SIZE, optrom, optrom_dma);
3251 return ret;
3252 }
3253
3254 int
3255 qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3256 uint32_t offset, uint32_t length)
3257 {
3258 int rval;
3259
3260 /* Suspend HBA. */
3261 scsi_block_requests(vha->host);
3262 rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
3263 length >> 2);
3264 scsi_unblock_requests(vha->host);
3265
3266 /* Convert return ISP82xx to generic */
3267 if (rval)
3268 rval = QLA_FUNCTION_FAILED;
3269 else
3270 rval = QLA_SUCCESS;
3271 return rval;
3272 }
3273
3274 void
3275 qla82xx_start_iocbs(srb_t *sp)
3276 {
3277 struct qla_hw_data *ha = sp->fcport->vha->hw;
3278 struct req_que *req = ha->req_q_map[0];
3279 struct device_reg_82xx __iomem *reg;
3280 uint32_t dbval;
3281
3282 /* Adjust ring index. */
3283 req->ring_index++;
3284 if (req->ring_index == req->length) {
3285 req->ring_index = 0;
3286 req->ring_ptr = req->ring;
3287 } else
3288 req->ring_ptr++;
3289
3290 reg = &ha->iobase->isp82;
3291 dbval = 0x04 | (ha->portnum << 5);
3292
3293 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3294 if (ql2xdbwr)
3295 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
3296 else {
3297 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
3298 wmb();
3299 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
3300 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr,
3301 dbval);
3302 wmb();
3303 }
3304 }
3305 }
3306
3307 void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
3308 {
3309 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3310
3311 if (qla82xx_rom_lock(ha))
3312 /* Someone else is holding the lock. */
3313 ql_log(ql_log_info, vha, 0xb022,
3314 "Resetting rom_lock.\n");
3315
3316 /*
3317 * Either we got the lock, or someone
3318 * else died while holding it.
3319 * In either case, unlock.
3320 */
3321 qla82xx_rom_unlock(ha);
3322 }
3323
3324 /*
3325 * qla82xx_device_bootstrap
3326 * Initialize device, set DEV_READY, start fw
3327 *
3328 * Note:
3329 * IDC lock must be held upon entry
3330 *
3331 * Return:
3332 * Success : 0
3333 * Failed : 1
3334 */
3335 static int
3336 qla82xx_device_bootstrap(scsi_qla_host_t *vha)
3337 {
3338 int rval = QLA_SUCCESS;
3339 int i, timeout;
3340 uint32_t old_count, count;
3341 struct qla_hw_data *ha = vha->hw;
3342 int need_reset = 0, peg_stuck = 1;
3343
3344 need_reset = qla82xx_need_reset(ha);
3345
3346 old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3347
3348 for (i = 0; i < 10; i++) {
3349 timeout = msleep_interruptible(200);
3350 if (timeout) {
3351 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3352 QLA82XX_DEV_FAILED);
3353 return QLA_FUNCTION_FAILED;
3354 }
3355
3356 count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3357 if (count != old_count)
3358 peg_stuck = 0;
3359 }
3360
3361 if (need_reset) {
3362 /* We are trying to perform a recovery here. */
3363 if (peg_stuck)
3364 qla82xx_rom_lock_recovery(ha);
3365 goto dev_initialize;
3366 } else {
3367 /* Start of day for this ha context. */
3368 if (peg_stuck) {
3369 /* Either we are the first or recovery in progress. */
3370 qla82xx_rom_lock_recovery(ha);
3371 goto dev_initialize;
3372 } else
3373 /* Firmware already running. */
3374 goto dev_ready;
3375 }
3376
3377 return rval;
3378
3379 dev_initialize:
3380 /* set to DEV_INITIALIZING */
3381 ql_log(ql_log_info, vha, 0x009e,
3382 "HW State: INITIALIZING.\n");
3383 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
3384
3385 /* Driver that sets device state to initializating sets IDC version */
3386 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
3387
3388 qla82xx_idc_unlock(ha);
3389 rval = qla82xx_start_firmware(vha);
3390 qla82xx_idc_lock(ha);
3391
3392 if (rval != QLA_SUCCESS) {
3393 ql_log(ql_log_fatal, vha, 0x00ad,
3394 "HW State: FAILED.\n");
3395 qla82xx_clear_drv_active(ha);
3396 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
3397 return rval;
3398 }
3399
3400 dev_ready:
3401 ql_log(ql_log_info, vha, 0x00ae,
3402 "HW State: READY.\n");
3403 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
3404
3405 return QLA_SUCCESS;
3406 }
3407
3408 /*
3409 * qla82xx_need_qsnt_handler
3410 * Code to start quiescence sequence
3411 *
3412 * Note:
3413 * IDC lock must be held upon entry
3414 *
3415 * Return: void
3416 */
3417
3418 static void
3419 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
3420 {
3421 struct qla_hw_data *ha = vha->hw;
3422 uint32_t dev_state, drv_state, drv_active;
3423 unsigned long reset_timeout;
3424
3425 if (vha->flags.online) {
3426 /*Block any further I/O and wait for pending cmnds to complete*/
3427 qla82xx_quiescent_state_cleanup(vha);
3428 }
3429
3430 /* Set the quiescence ready bit */
3431 qla82xx_set_qsnt_ready(ha);
3432
3433 /*wait for 30 secs for other functions to ack */
3434 reset_timeout = jiffies + (30 * HZ);
3435
3436 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3437 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3438 /* Its 2 that is written when qsnt is acked, moving one bit */
3439 drv_active = drv_active << 0x01;
3440
3441 while (drv_state != drv_active) {
3442
3443 if (time_after_eq(jiffies, reset_timeout)) {
3444 /* quiescence timeout, other functions didn't ack
3445 * changing the state to DEV_READY
3446 */
3447 ql_log(ql_log_info, vha, 0xb023,
3448 "%s : QUIESCENT TIMEOUT.\n", QLA2XXX_DRIVER_NAME);
3449 ql_log(ql_log_info, vha, 0xb024,
3450 "DRV_ACTIVE:%d DRV_STATE:%d.\n",
3451 drv_active, drv_state);
3452 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3453 QLA82XX_DEV_READY);
3454 ql_log(ql_log_info, vha, 0xb025,
3455 "HW State: DEV_READY.\n");
3456 qla82xx_idc_unlock(ha);
3457 qla2x00_perform_loop_resync(vha);
3458 qla82xx_idc_lock(ha);
3459
3460 qla82xx_clear_qsnt_ready(vha);
3461 return;
3462 }
3463
3464 qla82xx_idc_unlock(ha);
3465 msleep(1000);
3466 qla82xx_idc_lock(ha);
3467
3468 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3469 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3470 drv_active = drv_active << 0x01;
3471 }
3472 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3473 /* everyone acked so set the state to DEV_QUIESCENCE */
3474 if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
3475 ql_log(ql_log_info, vha, 0xb026,
3476 "HW State: DEV_QUIESCENT.\n");
3477 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
3478 }
3479 }
3480
3481 /*
3482 * qla82xx_wait_for_state_change
3483 * Wait for device state to change from given current state
3484 *
3485 * Note:
3486 * IDC lock must not be held upon entry
3487 *
3488 * Return:
3489 * Changed device state.
3490 */
3491 uint32_t
3492 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
3493 {
3494 struct qla_hw_data *ha = vha->hw;
3495 uint32_t dev_state;
3496
3497 do {
3498 msleep(1000);
3499 qla82xx_idc_lock(ha);
3500 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3501 qla82xx_idc_unlock(ha);
3502 } while (dev_state == curr_state);
3503
3504 return dev_state;
3505 }
3506
3507 static void
3508 qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
3509 {
3510 struct qla_hw_data *ha = vha->hw;
3511
3512 /* Disable the board */
3513 ql_log(ql_log_fatal, vha, 0x00b8,
3514 "Disabling the board.\n");
3515
3516 qla82xx_idc_lock(ha);
3517 qla82xx_clear_drv_active(ha);
3518 qla82xx_idc_unlock(ha);
3519
3520 /* Set DEV_FAILED flag to disable timer */
3521 vha->device_flags |= DFLG_DEV_FAILED;
3522 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3523 qla2x00_mark_all_devices_lost(vha, 0);
3524 vha->flags.online = 0;
3525 vha->flags.init_done = 0;
3526 }
3527
3528 /*
3529 * qla82xx_need_reset_handler
3530 * Code to start reset sequence
3531 *
3532 * Note:
3533 * IDC lock must be held upon entry
3534 *
3535 * Return:
3536 * Success : 0
3537 * Failed : 1
3538 */
3539 static void
3540 qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3541 {
3542 uint32_t dev_state, drv_state, drv_active;
3543 uint32_t active_mask = 0;
3544 unsigned long reset_timeout;
3545 struct qla_hw_data *ha = vha->hw;
3546 struct req_que *req = ha->req_q_map[0];
3547
3548 if (vha->flags.online) {
3549 qla82xx_idc_unlock(ha);
3550 qla2x00_abort_isp_cleanup(vha);
3551 ha->isp_ops->get_flash_version(vha, req->ring);
3552 ha->isp_ops->nvram_config(vha);
3553 qla82xx_idc_lock(ha);
3554 }
3555
3556 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3557 if (!ha->flags.isp82xx_reset_owner) {
3558 ql_dbg(ql_dbg_p3p, vha, 0xb028,
3559 "reset_acknowledged by 0x%x\n", ha->portnum);
3560 qla82xx_set_rst_ready(ha);
3561 } else {
3562 active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3563 drv_active &= active_mask;
3564 ql_dbg(ql_dbg_p3p, vha, 0xb029,
3565 "active_mask: 0x%08x\n", active_mask);
3566 }
3567
3568 /* wait for 10 seconds for reset ack from all functions */
3569 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3570
3571 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3572 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3573 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3574
3575 ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3576 "drv_state: 0x%08x, drv_active: 0x%08x, "
3577 "dev_state: 0x%08x, active_mask: 0x%08x\n",
3578 drv_state, drv_active, dev_state, active_mask);
3579
3580 while (drv_state != drv_active &&
3581 dev_state != QLA82XX_DEV_INITIALIZING) {
3582 if (time_after_eq(jiffies, reset_timeout)) {
3583 ql_log(ql_log_warn, vha, 0x00b5,
3584 "Reset timeout.\n");
3585 break;
3586 }
3587 qla82xx_idc_unlock(ha);
3588 msleep(1000);
3589 qla82xx_idc_lock(ha);
3590 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3591 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3592 if (ha->flags.isp82xx_reset_owner)
3593 drv_active &= active_mask;
3594 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3595 }
3596
3597 ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3598 "drv_state: 0x%08x, drv_active: 0x%08x, "
3599 "dev_state: 0x%08x, active_mask: 0x%08x\n",
3600 drv_state, drv_active, dev_state, active_mask);
3601
3602 ql_log(ql_log_info, vha, 0x00b6,
3603 "Device state is 0x%x = %s.\n",
3604 dev_state,
3605 dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3606
3607 /* Force to DEV_COLD unless someone else is starting a reset */
3608 if (dev_state != QLA82XX_DEV_INITIALIZING &&
3609 dev_state != QLA82XX_DEV_COLD) {
3610 ql_log(ql_log_info, vha, 0x00b7,
3611 "HW State: COLD/RE-INIT.\n");
3612 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
3613 if (ql2xmdenable) {
3614 if (qla82xx_md_collect(vha))
3615 ql_log(ql_log_warn, vha, 0xb02c,
3616 "Not able to collect minidump.\n");
3617 } else
3618 ql_log(ql_log_warn, vha, 0xb04f,
3619 "Minidump disabled.\n");
3620 }
3621 }
3622
3623 int
3624 qla82xx_check_md_needed(scsi_qla_host_t *vha)
3625 {
3626 struct qla_hw_data *ha = vha->hw;
3627 uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3628 int rval = QLA_SUCCESS;
3629
3630 fw_major_version = ha->fw_major_version;
3631 fw_minor_version = ha->fw_minor_version;
3632 fw_subminor_version = ha->fw_subminor_version;
3633
3634 rval = qla2x00_get_fw_version(vha, &ha->fw_major_version,
3635 &ha->fw_minor_version, &ha->fw_subminor_version,
3636 &ha->fw_attributes, &ha->fw_memory_size,
3637 ha->mpi_version, &ha->mpi_capabilities,
3638 ha->phy_version);
3639
3640 if (rval != QLA_SUCCESS)
3641 return rval;
3642
3643 if (ql2xmdenable) {
3644 if (!ha->fw_dumped) {
3645 if (fw_major_version != ha->fw_major_version ||
3646 fw_minor_version != ha->fw_minor_version ||
3647 fw_subminor_version != ha->fw_subminor_version) {
3648
3649 ql_log(ql_log_info, vha, 0xb02d,
3650 "Firmware version differs "
3651 "Previous version: %d:%d:%d - "
3652 "New version: %d:%d:%d\n",
3653 ha->fw_major_version,
3654 ha->fw_minor_version,
3655 ha->fw_subminor_version,
3656 fw_major_version, fw_minor_version,
3657 fw_subminor_version);
3658 /* Release MiniDump resources */
3659 qla82xx_md_free(vha);
3660 /* ALlocate MiniDump resources */
3661 qla82xx_md_prep(vha);
3662 } else
3663 ql_log(ql_log_info, vha, 0xb02e,
3664 "Firmware dump available to retrieve\n",
3665 vha->host_no);
3666 }
3667 }
3668 return rval;
3669 }
3670
3671
3672 int
3673 qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3674 {
3675 uint32_t fw_heartbeat_counter;
3676 int status = 0;
3677
3678 fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3679 QLA82XX_PEG_ALIVE_COUNTER);
3680 /* all 0xff, assume AER/EEH in progress, ignore */
3681 if (fw_heartbeat_counter == 0xffffffff) {
3682 ql_dbg(ql_dbg_timer, vha, 0x6003,
3683 "FW heartbeat counter is 0xffffffff, "
3684 "returning status=%d.\n", status);
3685 return status;
3686 }
3687 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3688 vha->seconds_since_last_heartbeat++;
3689 /* FW not alive after 2 seconds */
3690 if (vha->seconds_since_last_heartbeat == 2) {
3691 vha->seconds_since_last_heartbeat = 0;
3692 status = 1;
3693 }
3694 } else
3695 vha->seconds_since_last_heartbeat = 0;
3696 vha->fw_heartbeat_counter = fw_heartbeat_counter;
3697 if (status)
3698 ql_dbg(ql_dbg_timer, vha, 0x6004,
3699 "Returning status=%d.\n", status);
3700 return status;
3701 }
3702
3703 /*
3704 * qla82xx_device_state_handler
3705 * Main state handler
3706 *
3707 * Note:
3708 * IDC lock must be held upon entry
3709 *
3710 * Return:
3711 * Success : 0
3712 * Failed : 1
3713 */
3714 int
3715 qla82xx_device_state_handler(scsi_qla_host_t *vha)
3716 {
3717 uint32_t dev_state;
3718 uint32_t old_dev_state;
3719 int rval = QLA_SUCCESS;
3720 unsigned long dev_init_timeout;
3721 struct qla_hw_data *ha = vha->hw;
3722 int loopcount = 0;
3723
3724 qla82xx_idc_lock(ha);
3725 if (!vha->flags.init_done)
3726 qla82xx_set_drv_active(vha);
3727
3728 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3729 old_dev_state = dev_state;
3730 ql_log(ql_log_info, vha, 0x009b,
3731 "Device state is 0x%x = %s.\n",
3732 dev_state,
3733 dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3734
3735 /* wait for 30 seconds for device to go ready */
3736 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3737
3738 while (1) {
3739
3740 if (time_after_eq(jiffies, dev_init_timeout)) {
3741 ql_log(ql_log_fatal, vha, 0x009c,
3742 "Device init failed.\n");
3743 rval = QLA_FUNCTION_FAILED;
3744 break;
3745 }
3746 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3747 if (old_dev_state != dev_state) {
3748 loopcount = 0;
3749 old_dev_state = dev_state;
3750 }
3751 if (loopcount < 5) {
3752 ql_log(ql_log_info, vha, 0x009d,
3753 "Device state is 0x%x = %s.\n",
3754 dev_state,
3755 dev_state < MAX_STATES ? qdev_state(dev_state) :
3756 "Unknown");
3757 }
3758
3759 switch (dev_state) {
3760 case QLA82XX_DEV_READY:
3761 qla82xx_check_md_needed(vha);
3762 ha->flags.isp82xx_reset_owner = 0;
3763 goto exit;
3764 case QLA82XX_DEV_COLD:
3765 rval = qla82xx_device_bootstrap(vha);
3766 break;
3767 case QLA82XX_DEV_INITIALIZING:
3768 qla82xx_idc_unlock(ha);
3769 msleep(1000);
3770 qla82xx_idc_lock(ha);
3771 break;
3772 case QLA82XX_DEV_NEED_RESET:
3773 if (!ql2xdontresethba)
3774 qla82xx_need_reset_handler(vha);
3775 else {
3776 qla82xx_idc_unlock(ha);
3777 msleep(1000);
3778 qla82xx_idc_lock(ha);
3779 }
3780 dev_init_timeout = jiffies +
3781 (ha->nx_dev_init_timeout * HZ);
3782 break;
3783 case QLA82XX_DEV_NEED_QUIESCENT:
3784 qla82xx_need_qsnt_handler(vha);
3785 /* Reset timeout value after quiescence handler */
3786 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3787 * HZ);
3788 break;
3789 case QLA82XX_DEV_QUIESCENT:
3790 /* Owner will exit and other will wait for the state
3791 * to get changed
3792 */
3793 if (ha->flags.quiesce_owner)
3794 goto exit;
3795
3796 qla82xx_idc_unlock(ha);
3797 msleep(1000);
3798 qla82xx_idc_lock(ha);
3799
3800 /* Reset timeout value after quiescence handler */
3801 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3802 * HZ);
3803 break;
3804 case QLA82XX_DEV_FAILED:
3805 qla82xx_dev_failed_handler(vha);
3806 rval = QLA_FUNCTION_FAILED;
3807 goto exit;
3808 default:
3809 qla82xx_idc_unlock(ha);
3810 msleep(1000);
3811 qla82xx_idc_lock(ha);
3812 }
3813 loopcount++;
3814 }
3815 exit:
3816 qla82xx_idc_unlock(ha);
3817 return rval;
3818 }
3819
3820 void qla82xx_watchdog(scsi_qla_host_t *vha)
3821 {
3822 uint32_t dev_state, halt_status;
3823 struct qla_hw_data *ha = vha->hw;
3824
3825 /* don't poll if reset is going on */
3826 if (!ha->flags.isp82xx_reset_hdlr_active) {
3827 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3828 if (dev_state == QLA82XX_DEV_NEED_RESET &&
3829 !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3830 ql_log(ql_log_warn, vha, 0x6001,
3831 "Adapter reset needed.\n");
3832 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3833 qla2xxx_wake_dpc(vha);
3834 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
3835 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3836 ql_log(ql_log_warn, vha, 0x6002,
3837 "Quiescent needed.\n");
3838 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3839 qla2xxx_wake_dpc(vha);
3840 } else {
3841 if (qla82xx_check_fw_alive(vha)) {
3842 halt_status = qla82xx_rd_32(ha,
3843 QLA82XX_PEG_HALT_STATUS1);
3844 ql_dbg(ql_dbg_timer, vha, 0x6005,
3845 "dumping hw/fw registers:.\n "
3846 " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3847 " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3848 " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3849 " PEG_NET_4_PC: 0x%x.\n", halt_status,
3850 qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3851 qla82xx_rd_32(ha,
3852 QLA82XX_CRB_PEG_NET_0 + 0x3c),
3853 qla82xx_rd_32(ha,
3854 QLA82XX_CRB_PEG_NET_1 + 0x3c),
3855 qla82xx_rd_32(ha,
3856 QLA82XX_CRB_PEG_NET_2 + 0x3c),
3857 qla82xx_rd_32(ha,
3858 QLA82XX_CRB_PEG_NET_3 + 0x3c),
3859 qla82xx_rd_32(ha,
3860 QLA82XX_CRB_PEG_NET_4 + 0x3c));
3861 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3862 set_bit(ISP_UNRECOVERABLE,
3863 &vha->dpc_flags);
3864 } else {
3865 ql_log(ql_log_info, vha, 0x6006,
3866 "Detect abort needed.\n");
3867 set_bit(ISP_ABORT_NEEDED,
3868 &vha->dpc_flags);
3869 }
3870 qla2xxx_wake_dpc(vha);
3871 ha->flags.isp82xx_fw_hung = 1;
3872 if (ha->flags.mbox_busy) {
3873 ha->flags.mbox_int = 1;
3874 ql_log(ql_log_warn, vha, 0x6007,
3875 "Due to FW hung, doing "
3876 "premature completion of mbx "
3877 "command.\n");
3878 if (test_bit(MBX_INTR_WAIT,
3879 &ha->mbx_cmd_flags))
3880 complete(&ha->mbx_intr_comp);
3881 }
3882 }
3883 }
3884 }
3885 }
3886
3887 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3888 {
3889 int rval;
3890 rval = qla82xx_device_state_handler(vha);
3891 return rval;
3892 }
3893
3894 void
3895 qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3896 {
3897 struct qla_hw_data *ha = vha->hw;
3898 uint32_t dev_state;
3899
3900 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3901 if (dev_state == QLA82XX_DEV_READY) {
3902 ql_log(ql_log_info, vha, 0xb02f,
3903 "HW State: NEED RESET\n");
3904 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3905 QLA82XX_DEV_NEED_RESET);
3906 ha->flags.isp82xx_reset_owner = 1;
3907 ql_dbg(ql_dbg_p3p, vha, 0xb030,
3908 "reset_owner is 0x%x\n", ha->portnum);
3909 } else
3910 ql_log(ql_log_info, vha, 0xb031,
3911 "Device state is 0x%x = %s.\n",
3912 dev_state,
3913 dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3914 }
3915
3916 /*
3917 * qla82xx_abort_isp
3918 * Resets ISP and aborts all outstanding commands.
3919 *
3920 * Input:
3921 * ha = adapter block pointer.
3922 *
3923 * Returns:
3924 * 0 = success
3925 */
3926 int
3927 qla82xx_abort_isp(scsi_qla_host_t *vha)
3928 {
3929 int rval;
3930 struct qla_hw_data *ha = vha->hw;
3931
3932 if (vha->device_flags & DFLG_DEV_FAILED) {
3933 ql_log(ql_log_warn, vha, 0x8024,
3934 "Device in failed state, exiting.\n");
3935 return QLA_SUCCESS;
3936 }
3937 ha->flags.isp82xx_reset_hdlr_active = 1;
3938
3939 qla82xx_idc_lock(ha);
3940 qla82xx_set_reset_owner(vha);
3941 qla82xx_idc_unlock(ha);
3942
3943 rval = qla82xx_device_state_handler(vha);
3944
3945 qla82xx_idc_lock(ha);
3946 qla82xx_clear_rst_ready(ha);
3947 qla82xx_idc_unlock(ha);
3948
3949 if (rval == QLA_SUCCESS) {
3950 ha->flags.isp82xx_fw_hung = 0;
3951 ha->flags.isp82xx_reset_hdlr_active = 0;
3952 qla82xx_restart_isp(vha);
3953 }
3954
3955 if (rval) {
3956 vha->flags.online = 1;
3957 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3958 if (ha->isp_abort_cnt == 0) {
3959 ql_log(ql_log_warn, vha, 0x8027,
3960 "ISP error recover failed - board "
3961 "disabled.\n");
3962 /*
3963 * The next call disables the board
3964 * completely.
3965 */
3966 ha->isp_ops->reset_adapter(vha);
3967 vha->flags.online = 0;
3968 clear_bit(ISP_ABORT_RETRY,
3969 &vha->dpc_flags);
3970 rval = QLA_SUCCESS;
3971 } else { /* schedule another ISP abort */
3972 ha->isp_abort_cnt--;
3973 ql_log(ql_log_warn, vha, 0x8036,
3974 "ISP abort - retry remaining %d.\n",
3975 ha->isp_abort_cnt);
3976 rval = QLA_FUNCTION_FAILED;
3977 }
3978 } else {
3979 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3980 ql_dbg(ql_dbg_taskm, vha, 0x8029,
3981 "ISP error recovery - retrying (%d) more times.\n",
3982 ha->isp_abort_cnt);
3983 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3984 rval = QLA_FUNCTION_FAILED;
3985 }
3986 }
3987 return rval;
3988 }
3989
3990 /*
3991 * qla82xx_fcoe_ctx_reset
3992 * Perform a quick reset and aborts all outstanding commands.
3993 * This will only perform an FCoE context reset and avoids a full blown
3994 * chip reset.
3995 *
3996 * Input:
3997 * ha = adapter block pointer.
3998 * is_reset_path = flag for identifying the reset path.
3999 *
4000 * Returns:
4001 * 0 = success
4002 */
4003 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
4004 {
4005 int rval = QLA_FUNCTION_FAILED;
4006
4007 if (vha->flags.online) {
4008 /* Abort all outstanding commands, so as to be requeued later */
4009 qla2x00_abort_isp_cleanup(vha);
4010 }
4011
4012 /* Stop currently executing firmware.
4013 * This will destroy existing FCoE context at the F/W end.
4014 */
4015 qla2x00_try_to_stop_firmware(vha);
4016
4017 /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
4018 rval = qla82xx_restart_isp(vha);
4019
4020 return rval;
4021 }
4022
4023 /*
4024 * qla2x00_wait_for_fcoe_ctx_reset
4025 * Wait till the FCoE context is reset.
4026 *
4027 * Note:
4028 * Does context switching here.
4029 * Release SPIN_LOCK (if any) before calling this routine.
4030 *
4031 * Return:
4032 * Success (fcoe_ctx reset is done) : 0
4033 * Failed (fcoe_ctx reset not completed within max loop timout ) : 1
4034 */
4035 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
4036 {
4037 int status = QLA_FUNCTION_FAILED;
4038 unsigned long wait_reset;
4039
4040 wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
4041 while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
4042 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
4043 && time_before(jiffies, wait_reset)) {
4044
4045 set_current_state(TASK_UNINTERRUPTIBLE);
4046 schedule_timeout(HZ);
4047
4048 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
4049 !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
4050 status = QLA_SUCCESS;
4051 break;
4052 }
4053 }
4054 ql_dbg(ql_dbg_p3p, vha, 0xb027,
4055 "%s status=%d.\n", status);
4056
4057 return status;
4058 }
4059
4060 void
4061 qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
4062 {
4063 int i;
4064 unsigned long flags;
4065 struct qla_hw_data *ha = vha->hw;
4066
4067 /* Check if 82XX firmware is alive or not
4068 * We may have arrived here from NEED_RESET
4069 * detection only
4070 */
4071 if (!ha->flags.isp82xx_fw_hung) {
4072 for (i = 0; i < 2; i++) {
4073 msleep(1000);
4074 if (qla82xx_check_fw_alive(vha)) {
4075 ha->flags.isp82xx_fw_hung = 1;
4076 if (ha->flags.mbox_busy) {
4077 ha->flags.mbox_int = 1;
4078 complete(&ha->mbx_intr_comp);
4079 }
4080 break;
4081 }
4082 }
4083 }
4084 ql_dbg(ql_dbg_init, vha, 0x00b0,
4085 "Entered %s fw_hung=%d.\n",
4086 __func__, ha->flags.isp82xx_fw_hung);
4087
4088 /* Abort all commands gracefully if fw NOT hung */
4089 if (!ha->flags.isp82xx_fw_hung) {
4090 int cnt, que;
4091 srb_t *sp;
4092 struct req_que *req;
4093
4094 spin_lock_irqsave(&ha->hardware_lock, flags);
4095 for (que = 0; que < ha->max_req_queues; que++) {
4096 req = ha->req_q_map[que];
4097 if (!req)
4098 continue;
4099 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
4100 sp = req->outstanding_cmds[cnt];
4101 if (sp) {
4102 if (!sp->ctx ||
4103 (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
4104 spin_unlock_irqrestore(
4105 &ha->hardware_lock, flags);
4106 if (ha->isp_ops->abort_command(sp)) {
4107 ql_log(ql_log_info, vha,
4108 0x00b1,
4109 "mbx abort failed.\n");
4110 } else {
4111 ql_log(ql_log_info, vha,
4112 0x00b2,
4113 "mbx abort success.\n");
4114 }
4115 spin_lock_irqsave(&ha->hardware_lock, flags);
4116 }
4117 }
4118 }
4119 }
4120 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4121
4122 /* Wait for pending cmds (physical and virtual) to complete */
4123 if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
4124 WAIT_HOST) == QLA_SUCCESS) {
4125 ql_dbg(ql_dbg_init, vha, 0x00b3,
4126 "Done wait for "
4127 "pending commands.\n");
4128 }
4129 }
4130 }
4131
4132 /* Minidump related functions */
4133 int
4134 qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
4135 {
4136 uint32_t off_value, rval = 0;
4137
4138 WRT_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase),
4139 (off & 0xFFFF0000));
4140
4141 /* Read back value to make sure write has gone through */
4142 RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
4143 off_value = (off & 0x0000FFFF);
4144
4145 if (flag)
4146 WRT_REG_DWORD((void *)
4147 (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
4148 data);
4149 else
4150 rval = RD_REG_DWORD((void *)
4151 (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
4152
4153 return rval;
4154 }
4155
4156 static int
4157 qla82xx_minidump_process_control(scsi_qla_host_t *vha,
4158 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4159 {
4160 struct qla_hw_data *ha = vha->hw;
4161 struct qla82xx_md_entry_crb *crb_entry;
4162 uint32_t read_value, opcode, poll_time;
4163 uint32_t addr, index, crb_addr;
4164 unsigned long wtime;
4165 struct qla82xx_md_template_hdr *tmplt_hdr;
4166 uint32_t rval = QLA_SUCCESS;
4167 int i;
4168
4169 tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4170 crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
4171 crb_addr = crb_entry->addr;
4172
4173 for (i = 0; i < crb_entry->op_count; i++) {
4174 opcode = crb_entry->crb_ctrl.opcode;
4175 if (opcode & QLA82XX_DBG_OPCODE_WR) {
4176 qla82xx_md_rw_32(ha, crb_addr,
4177 crb_entry->value_1, 1);
4178 opcode &= ~QLA82XX_DBG_OPCODE_WR;
4179 }
4180
4181 if (opcode & QLA82XX_DBG_OPCODE_RW) {
4182 read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4183 qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
4184 opcode &= ~QLA82XX_DBG_OPCODE_RW;
4185 }
4186
4187 if (opcode & QLA82XX_DBG_OPCODE_AND) {
4188 read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4189 read_value &= crb_entry->value_2;
4190 opcode &= ~QLA82XX_DBG_OPCODE_AND;
4191 if (opcode & QLA82XX_DBG_OPCODE_OR) {
4192 read_value |= crb_entry->value_3;
4193 opcode &= ~QLA82XX_DBG_OPCODE_OR;
4194 }
4195 qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
4196 }
4197
4198 if (opcode & QLA82XX_DBG_OPCODE_OR) {
4199 read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4200 read_value |= crb_entry->value_3;
4201 qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
4202 opcode &= ~QLA82XX_DBG_OPCODE_OR;
4203 }
4204
4205 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
4206 poll_time = crb_entry->crb_strd.poll_timeout;
4207 wtime = jiffies + poll_time;
4208 read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4209
4210 do {
4211 if ((read_value & crb_entry->value_2)
4212 == crb_entry->value_1)
4213 break;
4214 else if (time_after_eq(jiffies, wtime)) {
4215 /* capturing dump failed */
4216 rval = QLA_FUNCTION_FAILED;
4217 break;
4218 } else
4219 read_value = qla82xx_md_rw_32(ha,
4220 crb_addr, 0, 0);
4221 } while (1);
4222 opcode &= ~QLA82XX_DBG_OPCODE_POLL;
4223 }
4224
4225 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
4226 if (crb_entry->crb_strd.state_index_a) {
4227 index = crb_entry->crb_strd.state_index_a;
4228 addr = tmplt_hdr->saved_state_array[index];
4229 } else
4230 addr = crb_addr;
4231
4232 read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
4233 index = crb_entry->crb_ctrl.state_index_v;
4234 tmplt_hdr->saved_state_array[index] = read_value;
4235 opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
4236 }
4237
4238 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
4239 if (crb_entry->crb_strd.state_index_a) {
4240 index = crb_entry->crb_strd.state_index_a;
4241 addr = tmplt_hdr->saved_state_array[index];
4242 } else
4243 addr = crb_addr;
4244
4245 if (crb_entry->crb_ctrl.state_index_v) {
4246 index = crb_entry->crb_ctrl.state_index_v;
4247 read_value =
4248 tmplt_hdr->saved_state_array[index];
4249 } else
4250 read_value = crb_entry->value_1;
4251
4252 qla82xx_md_rw_32(ha, addr, read_value, 1);
4253 opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
4254 }
4255
4256 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
4257 index = crb_entry->crb_ctrl.state_index_v;
4258 read_value = tmplt_hdr->saved_state_array[index];
4259 read_value <<= crb_entry->crb_ctrl.shl;
4260 read_value >>= crb_entry->crb_ctrl.shr;
4261 if (crb_entry->value_2)
4262 read_value &= crb_entry->value_2;
4263 read_value |= crb_entry->value_3;
4264 read_value += crb_entry->value_1;
4265 tmplt_hdr->saved_state_array[index] = read_value;
4266 opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
4267 }
4268 crb_addr += crb_entry->crb_strd.addr_stride;
4269 }
4270 return rval;
4271 }
4272
4273 static void
4274 qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
4275 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4276 {
4277 struct qla_hw_data *ha = vha->hw;
4278 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
4279 struct qla82xx_md_entry_rdocm *ocm_hdr;
4280 uint32_t *data_ptr = *d_ptr;
4281
4282 ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
4283 r_addr = ocm_hdr->read_addr;
4284 r_stride = ocm_hdr->read_addr_stride;
4285 loop_cnt = ocm_hdr->op_count;
4286
4287 for (i = 0; i < loop_cnt; i++) {
4288 r_value = RD_REG_DWORD((void *)(r_addr + ha->nx_pcibase));
4289 *data_ptr++ = cpu_to_le32(r_value);
4290 r_addr += r_stride;
4291 }
4292 *d_ptr = data_ptr;
4293 }
4294
4295 static void
4296 qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
4297 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4298 {
4299 struct qla_hw_data *ha = vha->hw;
4300 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
4301 struct qla82xx_md_entry_mux *mux_hdr;
4302 uint32_t *data_ptr = *d_ptr;
4303
4304 mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
4305 r_addr = mux_hdr->read_addr;
4306 s_addr = mux_hdr->select_addr;
4307 s_stride = mux_hdr->select_value_stride;
4308 s_value = mux_hdr->select_value;
4309 loop_cnt = mux_hdr->op_count;
4310
4311 for (i = 0; i < loop_cnt; i++) {
4312 qla82xx_md_rw_32(ha, s_addr, s_value, 1);
4313 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4314 *data_ptr++ = cpu_to_le32(s_value);
4315 *data_ptr++ = cpu_to_le32(r_value);
4316 s_value += s_stride;
4317 }
4318 *d_ptr = data_ptr;
4319 }
4320
4321 static void
4322 qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
4323 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4324 {
4325 struct qla_hw_data *ha = vha->hw;
4326 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
4327 struct qla82xx_md_entry_crb *crb_hdr;
4328 uint32_t *data_ptr = *d_ptr;
4329
4330 crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
4331 r_addr = crb_hdr->addr;
4332 r_stride = crb_hdr->crb_strd.addr_stride;
4333 loop_cnt = crb_hdr->op_count;
4334
4335 for (i = 0; i < loop_cnt; i++) {
4336 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4337 *data_ptr++ = cpu_to_le32(r_addr);
4338 *data_ptr++ = cpu_to_le32(r_value);
4339 r_addr += r_stride;
4340 }
4341 *d_ptr = data_ptr;
4342 }
4343
4344 static int
4345 qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
4346 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4347 {
4348 struct qla_hw_data *ha = vha->hw;
4349 uint32_t addr, r_addr, c_addr, t_r_addr;
4350 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
4351 unsigned long p_wait, w_time, p_mask;
4352 uint32_t c_value_w, c_value_r;
4353 struct qla82xx_md_entry_cache *cache_hdr;
4354 int rval = QLA_FUNCTION_FAILED;
4355 uint32_t *data_ptr = *d_ptr;
4356
4357 cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
4358 loop_count = cache_hdr->op_count;
4359 r_addr = cache_hdr->read_addr;
4360 c_addr = cache_hdr->control_addr;
4361 c_value_w = cache_hdr->cache_ctrl.write_value;
4362
4363 t_r_addr = cache_hdr->tag_reg_addr;
4364 t_value = cache_hdr->addr_ctrl.init_tag_value;
4365 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
4366 p_wait = cache_hdr->cache_ctrl.poll_wait;
4367 p_mask = cache_hdr->cache_ctrl.poll_mask;
4368
4369 for (i = 0; i < loop_count; i++) {
4370 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
4371 if (c_value_w)
4372 qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
4373
4374 if (p_mask) {
4375 w_time = jiffies + p_wait;
4376 do {
4377 c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
4378 if ((c_value_r & p_mask) == 0)
4379 break;
4380 else if (time_after_eq(jiffies, w_time)) {
4381 /* capturing dump failed */
4382 ql_dbg(ql_dbg_p3p, vha, 0xb032,
4383 "c_value_r: 0x%x, poll_mask: 0x%lx, "
4384 "w_time: 0x%lx\n",
4385 c_value_r, p_mask, w_time);
4386 return rval;
4387 }
4388 } while (1);
4389 }
4390
4391 addr = r_addr;
4392 for (k = 0; k < r_cnt; k++) {
4393 r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
4394 *data_ptr++ = cpu_to_le32(r_value);
4395 addr += cache_hdr->read_ctrl.read_addr_stride;
4396 }
4397 t_value += cache_hdr->addr_ctrl.tag_value_stride;
4398 }
4399 *d_ptr = data_ptr;
4400 return QLA_SUCCESS;
4401 }
4402
4403 static void
4404 qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
4405 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4406 {
4407 struct qla_hw_data *ha = vha->hw;
4408 uint32_t addr, r_addr, c_addr, t_r_addr;
4409 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
4410 uint32_t c_value_w;
4411 struct qla82xx_md_entry_cache *cache_hdr;
4412 uint32_t *data_ptr = *d_ptr;
4413
4414 cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
4415 loop_count = cache_hdr->op_count;
4416 r_addr = cache_hdr->read_addr;
4417 c_addr = cache_hdr->control_addr;
4418 c_value_w = cache_hdr->cache_ctrl.write_value;
4419
4420 t_r_addr = cache_hdr->tag_reg_addr;
4421 t_value = cache_hdr->addr_ctrl.init_tag_value;
4422 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
4423
4424 for (i = 0; i < loop_count; i++) {
4425 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
4426 qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
4427 addr = r_addr;
4428 for (k = 0; k < r_cnt; k++) {
4429 r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
4430 *data_ptr++ = cpu_to_le32(r_value);
4431 addr += cache_hdr->read_ctrl.read_addr_stride;
4432 }
4433 t_value += cache_hdr->addr_ctrl.tag_value_stride;
4434 }
4435 *d_ptr = data_ptr;
4436 }
4437
4438 static void
4439 qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
4440 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4441 {
4442 struct qla_hw_data *ha = vha->hw;
4443 uint32_t s_addr, r_addr;
4444 uint32_t r_stride, r_value, r_cnt, qid = 0;
4445 uint32_t i, k, loop_cnt;
4446 struct qla82xx_md_entry_queue *q_hdr;
4447 uint32_t *data_ptr = *d_ptr;
4448
4449 q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
4450 s_addr = q_hdr->select_addr;
4451 r_cnt = q_hdr->rd_strd.read_addr_cnt;
4452 r_stride = q_hdr->rd_strd.read_addr_stride;
4453 loop_cnt = q_hdr->op_count;
4454
4455 for (i = 0; i < loop_cnt; i++) {
4456 qla82xx_md_rw_32(ha, s_addr, qid, 1);
4457 r_addr = q_hdr->read_addr;
4458 for (k = 0; k < r_cnt; k++) {
4459 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4460 *data_ptr++ = cpu_to_le32(r_value);
4461 r_addr += r_stride;
4462 }
4463 qid += q_hdr->q_strd.queue_id_stride;
4464 }
4465 *d_ptr = data_ptr;
4466 }
4467
4468 static void
4469 qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
4470 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4471 {
4472 struct qla_hw_data *ha = vha->hw;
4473 uint32_t r_addr, r_value;
4474 uint32_t i, loop_cnt;
4475 struct qla82xx_md_entry_rdrom *rom_hdr;
4476 uint32_t *data_ptr = *d_ptr;
4477
4478 rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4479 r_addr = rom_hdr->read_addr;
4480 loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4481
4482 for (i = 0; i < loop_cnt; i++) {
4483 qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4484 (r_addr & 0xFFFF0000), 1);
4485 r_value = qla82xx_md_rw_32(ha,
4486 MD_DIRECT_ROM_READ_BASE +
4487 (r_addr & 0x0000FFFF), 0, 0);
4488 *data_ptr++ = cpu_to_le32(r_value);
4489 r_addr += sizeof(uint32_t);
4490 }
4491 *d_ptr = data_ptr;
4492 }
4493
4494 static int
4495 qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4496 qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4497 {
4498 struct qla_hw_data *ha = vha->hw;
4499 uint32_t r_addr, r_value, r_data;
4500 uint32_t i, j, loop_cnt;
4501 struct qla82xx_md_entry_rdmem *m_hdr;
4502 unsigned long flags;
4503 int rval = QLA_FUNCTION_FAILED;
4504 uint32_t *data_ptr = *d_ptr;
4505
4506 m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4507 r_addr = m_hdr->read_addr;
4508 loop_cnt = m_hdr->read_data_size/16;
4509
4510 if (r_addr & 0xf) {
4511 ql_log(ql_log_warn, vha, 0xb033,
4512 "Read addr 0x%x not 16 bytes alligned\n", r_addr);
4513 return rval;
4514 }
4515
4516 if (m_hdr->read_data_size % 16) {
4517 ql_log(ql_log_warn, vha, 0xb034,
4518 "Read data[0x%x] not multiple of 16 bytes\n",
4519 m_hdr->read_data_size);
4520 return rval;
4521 }
4522
4523 ql_dbg(ql_dbg_p3p, vha, 0xb035,
4524 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4525 __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4526
4527 write_lock_irqsave(&ha->hw_lock, flags);
4528 for (i = 0; i < loop_cnt; i++) {
4529 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4530 r_value = 0;
4531 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4532 r_value = MIU_TA_CTL_ENABLE;
4533 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4534 r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4535 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4536
4537 for (j = 0; j < MAX_CTL_CHECK; j++) {
4538 r_value = qla82xx_md_rw_32(ha,
4539 MD_MIU_TEST_AGT_CTRL, 0, 0);
4540 if ((r_value & MIU_TA_CTL_BUSY) == 0)
4541 break;
4542 }
4543
4544 if (j >= MAX_CTL_CHECK) {
4545 printk_ratelimited(KERN_ERR
4546 "failed to read through agent\n");
4547 write_unlock_irqrestore(&ha->hw_lock, flags);
4548 return rval;
4549 }
4550
4551 for (j = 0; j < 4; j++) {
4552 r_data = qla82xx_md_rw_32(ha,
4553 MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4554 *data_ptr++ = cpu_to_le32(r_data);
4555 }
4556 r_addr += 16;
4557 }
4558 write_unlock_irqrestore(&ha->hw_lock, flags);
4559 *d_ptr = data_ptr;
4560 return QLA_SUCCESS;
4561 }
4562
4563 static int
4564 qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4565 {
4566 struct qla_hw_data *ha = vha->hw;
4567 uint64_t chksum = 0;
4568 uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4569 int count = ha->md_template_size/sizeof(uint32_t);
4570
4571 while (count-- > 0)
4572 chksum += *d_ptr++;
4573 while (chksum >> 32)
4574 chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4575 return ~chksum;
4576 }
4577
4578 static void
4579 qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4580 qla82xx_md_entry_hdr_t *entry_hdr, int index)
4581 {
4582 entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4583 ql_dbg(ql_dbg_p3p, vha, 0xb036,
4584 "Skipping entry[%d]: "
4585 "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4586 index, entry_hdr->entry_type,
4587 entry_hdr->d_ctrl.entry_capture_mask);
4588 }
4589
4590 int
4591 qla82xx_md_collect(scsi_qla_host_t *vha)
4592 {
4593 struct qla_hw_data *ha = vha->hw;
4594 int no_entry_hdr = 0;
4595 qla82xx_md_entry_hdr_t *entry_hdr;
4596 struct qla82xx_md_template_hdr *tmplt_hdr;
4597 uint32_t *data_ptr;
4598 uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4599 int i = 0, rval = QLA_FUNCTION_FAILED;
4600
4601 tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4602 data_ptr = (uint32_t *)ha->md_dump;
4603
4604 if (ha->fw_dumped) {
4605 ql_log(ql_log_info, vha, 0xb037,
4606 "Firmware dump available to retrive\n");
4607 goto md_failed;
4608 }
4609
4610 ha->fw_dumped = 0;
4611
4612 if (!ha->md_tmplt_hdr || !ha->md_dump) {
4613 ql_log(ql_log_warn, vha, 0xb038,
4614 "Memory not allocated for minidump capture\n");
4615 goto md_failed;
4616 }
4617
4618 if (qla82xx_validate_template_chksum(vha)) {
4619 ql_log(ql_log_info, vha, 0xb039,
4620 "Template checksum validation error\n");
4621 goto md_failed;
4622 }
4623
4624 no_entry_hdr = tmplt_hdr->num_of_entries;
4625 ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4626 "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4627
4628 ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4629 "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4630
4631 f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4632
4633 /* Validate whether required debug level is set */
4634 if ((f_capture_mask & 0x3) != 0x3) {
4635 ql_log(ql_log_warn, vha, 0xb03c,
4636 "Minimum required capture mask[0x%x] level not set\n",
4637 f_capture_mask);
4638 goto md_failed;
4639 }
4640 tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4641
4642 tmplt_hdr->driver_info[0] = vha->host_no;
4643 tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4644 (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4645 QLA_DRIVER_BETA_VER;
4646
4647 total_data_size = ha->md_dump_size;
4648
4649 ql_dbg(ql_log_info, vha, 0xb03d,
4650 "Total minidump data_size 0x%x to be captured\n", total_data_size);
4651
4652 /* Check whether template obtained is valid */
4653 if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4654 ql_log(ql_log_warn, vha, 0xb04e,
4655 "Bad template header entry type: 0x%x obtained\n",
4656 tmplt_hdr->entry_type);
4657 goto md_failed;
4658 }
4659
4660 entry_hdr = (qla82xx_md_entry_hdr_t *) \
4661 (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4662
4663 /* Walk through the entry headers */
4664 for (i = 0; i < no_entry_hdr; i++) {
4665
4666 if (data_collected > total_data_size) {
4667 ql_log(ql_log_warn, vha, 0xb03e,
4668 "More MiniDump data collected: [0x%x]\n",
4669 data_collected);
4670 goto md_failed;
4671 }
4672
4673 if (!(entry_hdr->d_ctrl.entry_capture_mask &
4674 ql2xmdcapmask)) {
4675 entry_hdr->d_ctrl.driver_flags |=
4676 QLA82XX_DBG_SKIPPED_FLAG;
4677 ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4678 "Skipping entry[%d]: "
4679 "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4680 i, entry_hdr->entry_type,
4681 entry_hdr->d_ctrl.entry_capture_mask);
4682 goto skip_nxt_entry;
4683 }
4684
4685 ql_dbg(ql_dbg_p3p, vha, 0xb040,
4686 "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4687 "entry_type: 0x%x, captrue_mask: 0x%x\n",
4688 __func__, i, data_ptr, entry_hdr,
4689 entry_hdr->entry_type,
4690 entry_hdr->d_ctrl.entry_capture_mask);
4691
4692 ql_dbg(ql_dbg_p3p, vha, 0xb041,
4693 "Data collected: [0x%x], Dump size left:[0x%x]\n",
4694 data_collected, (ha->md_dump_size - data_collected));
4695
4696 /* Decode the entry type and take
4697 * required action to capture debug data */
4698 switch (entry_hdr->entry_type) {
4699 case QLA82XX_RDEND:
4700 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4701 break;
4702 case QLA82XX_CNTRL:
4703 rval = qla82xx_minidump_process_control(vha,
4704 entry_hdr, &data_ptr);
4705 if (rval != QLA_SUCCESS) {
4706 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4707 goto md_failed;
4708 }
4709 break;
4710 case QLA82XX_RDCRB:
4711 qla82xx_minidump_process_rdcrb(vha,
4712 entry_hdr, &data_ptr);
4713 break;
4714 case QLA82XX_RDMEM:
4715 rval = qla82xx_minidump_process_rdmem(vha,
4716 entry_hdr, &data_ptr);
4717 if (rval != QLA_SUCCESS) {
4718 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4719 goto md_failed;
4720 }
4721 break;
4722 case QLA82XX_BOARD:
4723 case QLA82XX_RDROM:
4724 qla82xx_minidump_process_rdrom(vha,
4725 entry_hdr, &data_ptr);
4726 break;
4727 case QLA82XX_L2DTG:
4728 case QLA82XX_L2ITG:
4729 case QLA82XX_L2DAT:
4730 case QLA82XX_L2INS:
4731 rval = qla82xx_minidump_process_l2tag(vha,
4732 entry_hdr, &data_ptr);
4733 if (rval != QLA_SUCCESS) {
4734 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4735 goto md_failed;
4736 }
4737 break;
4738 case QLA82XX_L1DAT:
4739 case QLA82XX_L1INS:
4740 qla82xx_minidump_process_l1cache(vha,
4741 entry_hdr, &data_ptr);
4742 break;
4743 case QLA82XX_RDOCM:
4744 qla82xx_minidump_process_rdocm(vha,
4745 entry_hdr, &data_ptr);
4746 break;
4747 case QLA82XX_RDMUX:
4748 qla82xx_minidump_process_rdmux(vha,
4749 entry_hdr, &data_ptr);
4750 break;
4751 case QLA82XX_QUEUE:
4752 qla82xx_minidump_process_queue(vha,
4753 entry_hdr, &data_ptr);
4754 break;
4755 case QLA82XX_RDNOP:
4756 default:
4757 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4758 break;
4759 }
4760
4761 ql_dbg(ql_dbg_p3p, vha, 0xb042,
4762 "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4763
4764 data_collected = (uint8_t *)data_ptr -
4765 (uint8_t *)ha->md_dump;
4766 skip_nxt_entry:
4767 entry_hdr = (qla82xx_md_entry_hdr_t *) \
4768 (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4769 }
4770
4771 if (data_collected != total_data_size) {
4772 ql_dbg(ql_log_warn, vha, 0xb043,
4773 "MiniDump data mismatch: Data collected: [0x%x],"
4774 "total_data_size:[0x%x]\n",
4775 data_collected, total_data_size);
4776 goto md_failed;
4777 }
4778
4779 ql_log(ql_log_info, vha, 0xb044,
4780 "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4781 vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4782 ha->fw_dumped = 1;
4783 qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4784
4785 md_failed:
4786 return rval;
4787 }
4788
4789 int
4790 qla82xx_md_alloc(scsi_qla_host_t *vha)
4791 {
4792 struct qla_hw_data *ha = vha->hw;
4793 int i, k;
4794 struct qla82xx_md_template_hdr *tmplt_hdr;
4795
4796 tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4797
4798 if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4799 ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4800 ql_log(ql_log_info, vha, 0xb045,
4801 "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4802 ql2xmdcapmask);
4803 }
4804
4805 for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4806 if (i & ql2xmdcapmask)
4807 ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4808 }
4809
4810 if (ha->md_dump) {
4811 ql_log(ql_log_warn, vha, 0xb046,
4812 "Firmware dump previously allocated.\n");
4813 return 1;
4814 }
4815
4816 ha->md_dump = vmalloc(ha->md_dump_size);
4817 if (ha->md_dump == NULL) {
4818 ql_log(ql_log_warn, vha, 0xb047,
4819 "Unable to allocate memory for Minidump size "
4820 "(0x%x).\n", ha->md_dump_size);
4821 return 1;
4822 }
4823 return 0;
4824 }
4825
4826 void
4827 qla82xx_md_free(scsi_qla_host_t *vha)
4828 {
4829 struct qla_hw_data *ha = vha->hw;
4830
4831 /* Release the template header allocated */
4832 if (ha->md_tmplt_hdr) {
4833 ql_log(ql_log_info, vha, 0xb048,
4834 "Free MiniDump template: %p, size (%d KB)\n",
4835 ha->md_tmplt_hdr, ha->md_template_size / 1024);
4836 dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4837 ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4838 ha->md_tmplt_hdr = 0;
4839 }
4840
4841 /* Release the template data buffer allocated */
4842 if (ha->md_dump) {
4843 ql_log(ql_log_info, vha, 0xb049,
4844 "Free MiniDump memory: %p, size (%d KB)\n",
4845 ha->md_dump, ha->md_dump_size / 1024);
4846 vfree(ha->md_dump);
4847 ha->md_dump_size = 0;
4848 ha->md_dump = 0;
4849 }
4850 }
4851
4852 void
4853 qla82xx_md_prep(scsi_qla_host_t *vha)
4854 {
4855 struct qla_hw_data *ha = vha->hw;
4856 int rval;
4857
4858 /* Get Minidump template size */
4859 rval = qla82xx_md_get_template_size(vha);
4860 if (rval == QLA_SUCCESS) {
4861 ql_log(ql_log_info, vha, 0xb04a,
4862 "MiniDump Template size obtained (%d KB)\n",
4863 ha->md_template_size / 1024);
4864
4865 /* Get Minidump template */
4866 rval = qla82xx_md_get_template(vha);
4867 if (rval == QLA_SUCCESS) {
4868 ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4869 "MiniDump Template obtained\n");
4870
4871 /* Allocate memory for minidump */
4872 rval = qla82xx_md_alloc(vha);
4873 if (rval == QLA_SUCCESS)
4874 ql_log(ql_log_info, vha, 0xb04c,
4875 "MiniDump memory allocated (%d KB)\n",
4876 ha->md_dump_size / 1024);
4877 else {
4878 ql_log(ql_log_info, vha, 0xb04d,
4879 "Free MiniDump template: %p, size: (%d KB)\n",
4880 ha->md_tmplt_hdr,
4881 ha->md_template_size / 1024);
4882 dma_free_coherent(&ha->pdev->dev,
4883 ha->md_template_size,
4884 ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4885 ha->md_tmplt_hdr = 0;
4886 }
4887
4888 }
4889 }
4890 }
4891
4892 int
4893 qla82xx_beacon_on(struct scsi_qla_host *vha)
4894 {
4895
4896 int rval;
4897 struct qla_hw_data *ha = vha->hw;
4898 qla82xx_idc_lock(ha);
4899 rval = qla82xx_mbx_beacon_ctl(vha, 1);
4900
4901 if (rval) {
4902 ql_log(ql_log_warn, vha, 0xb050,
4903 "mbx set led config failed in %s\n", __func__);
4904 goto exit;
4905 }
4906 ha->beacon_blink_led = 1;
4907 exit:
4908 qla82xx_idc_unlock(ha);
4909 return rval;
4910 }
4911
4912 int
4913 qla82xx_beacon_off(struct scsi_qla_host *vha)
4914 {
4915
4916 int rval;
4917 struct qla_hw_data *ha = vha->hw;
4918 qla82xx_idc_lock(ha);
4919 rval = qla82xx_mbx_beacon_ctl(vha, 0);
4920
4921 if (rval) {
4922 ql_log(ql_log_warn, vha, 0xb051,
4923 "mbx set led config failed in %s\n", __func__);
4924 goto exit;
4925 }
4926 ha->beacon_blink_led = 0;
4927 exit:
4928 qla82xx_idc_unlock(ha);
4929 return rval;
4930 }
linux-next