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ath9k_hw: Add radio retention support for AR9480
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / qla2xxx / qla_nx.c
blobe1138bcc834c1e56b0bab79efbd94402d9116147
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 <scsi/scsi_tcq.h>
11
12 #define MASK(n) ((1ULL<<(n))-1)
13 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
14 ((addr >> 25) & 0x3ff))
15 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
16 ((addr >> 25) & 0x3ff))
17 #define MS_WIN(addr) (addr & 0x0ffc0000)
18 #define QLA82XX_PCI_MN_2M (0)
19 #define QLA82XX_PCI_MS_2M (0x80000)
20 #define QLA82XX_PCI_OCM0_2M (0xc0000)
21 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
22 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
23 #define BLOCK_PROTECT_BITS 0x0F
24
25 /* CRB window related */
26 #define CRB_BLK(off) ((off >> 20) & 0x3f)
27 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
28 #define CRB_WINDOW_2M (0x130060)
29 #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
30 #define CRB_HI(off) ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
31 ((off) & 0xf0000))
32 #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
33 #define CRB_INDIRECT_2M (0x1e0000UL)
34
35 #define MAX_CRB_XFORM 60
36 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
37 int qla82xx_crb_table_initialized;
38
39 #define qla82xx_crb_addr_transform(name) \
40 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
41 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
42
43 static void qla82xx_crb_addr_transform_setup(void)
44 {
45 qla82xx_crb_addr_transform(XDMA);
46 qla82xx_crb_addr_transform(TIMR);
47 qla82xx_crb_addr_transform(SRE);
48 qla82xx_crb_addr_transform(SQN3);
49 qla82xx_crb_addr_transform(SQN2);
50 qla82xx_crb_addr_transform(SQN1);
51 qla82xx_crb_addr_transform(SQN0);
52 qla82xx_crb_addr_transform(SQS3);
53 qla82xx_crb_addr_transform(SQS2);
54 qla82xx_crb_addr_transform(SQS1);
55 qla82xx_crb_addr_transform(SQS0);
56 qla82xx_crb_addr_transform(RPMX7);
57 qla82xx_crb_addr_transform(RPMX6);
58 qla82xx_crb_addr_transform(RPMX5);
59 qla82xx_crb_addr_transform(RPMX4);
60 qla82xx_crb_addr_transform(RPMX3);
61 qla82xx_crb_addr_transform(RPMX2);
62 qla82xx_crb_addr_transform(RPMX1);
63 qla82xx_crb_addr_transform(RPMX0);
64 qla82xx_crb_addr_transform(ROMUSB);
65 qla82xx_crb_addr_transform(SN);
66 qla82xx_crb_addr_transform(QMN);
67 qla82xx_crb_addr_transform(QMS);
68 qla82xx_crb_addr_transform(PGNI);
69 qla82xx_crb_addr_transform(PGND);
70 qla82xx_crb_addr_transform(PGN3);
71 qla82xx_crb_addr_transform(PGN2);
72 qla82xx_crb_addr_transform(PGN1);
73 qla82xx_crb_addr_transform(PGN0);
74 qla82xx_crb_addr_transform(PGSI);
75 qla82xx_crb_addr_transform(PGSD);
76 qla82xx_crb_addr_transform(PGS3);
77 qla82xx_crb_addr_transform(PGS2);
78 qla82xx_crb_addr_transform(PGS1);
79 qla82xx_crb_addr_transform(PGS0);
80 qla82xx_crb_addr_transform(PS);
81 qla82xx_crb_addr_transform(PH);
82 qla82xx_crb_addr_transform(NIU);
83 qla82xx_crb_addr_transform(I2Q);
84 qla82xx_crb_addr_transform(EG);
85 qla82xx_crb_addr_transform(MN);
86 qla82xx_crb_addr_transform(MS);
87 qla82xx_crb_addr_transform(CAS2);
88 qla82xx_crb_addr_transform(CAS1);
89 qla82xx_crb_addr_transform(CAS0);
90 qla82xx_crb_addr_transform(CAM);
91 qla82xx_crb_addr_transform(C2C1);
92 qla82xx_crb_addr_transform(C2C0);
93 qla82xx_crb_addr_transform(SMB);
94 qla82xx_crb_addr_transform(OCM0);
95 /*
96 * Used only in P3 just define it for P2 also.
97 */
98 qla82xx_crb_addr_transform(I2C0);
99
100 qla82xx_crb_table_initialized = 1;
101 }
102
103 struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
104 {{{0, 0, 0, 0} } },
105 {{{1, 0x0100000, 0x0102000, 0x120000},
106 {1, 0x0110000, 0x0120000, 0x130000},
107 {1, 0x0120000, 0x0122000, 0x124000},
108 {1, 0x0130000, 0x0132000, 0x126000},
109 {1, 0x0140000, 0x0142000, 0x128000},
110 {1, 0x0150000, 0x0152000, 0x12a000},
111 {1, 0x0160000, 0x0170000, 0x110000},
112 {1, 0x0170000, 0x0172000, 0x12e000},
113 {0, 0x0000000, 0x0000000, 0x000000},
114 {0, 0x0000000, 0x0000000, 0x000000},
115 {0, 0x0000000, 0x0000000, 0x000000},
116 {0, 0x0000000, 0x0000000, 0x000000},
117 {0, 0x0000000, 0x0000000, 0x000000},
118 {0, 0x0000000, 0x0000000, 0x000000},
119 {1, 0x01e0000, 0x01e0800, 0x122000},
120 {0, 0x0000000, 0x0000000, 0x000000} } } ,
121 {{{1, 0x0200000, 0x0210000, 0x180000} } },
122 {{{0, 0, 0, 0} } },
123 {{{1, 0x0400000, 0x0401000, 0x169000} } },
124 {{{1, 0x0500000, 0x0510000, 0x140000} } },
125 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
126 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
127 {{{1, 0x0800000, 0x0802000, 0x170000},
128 {0, 0x0000000, 0x0000000, 0x000000},
129 {0, 0x0000000, 0x0000000, 0x000000},
130 {0, 0x0000000, 0x0000000, 0x000000},
131 {0, 0x0000000, 0x0000000, 0x000000},
132 {0, 0x0000000, 0x0000000, 0x000000},
133 {0, 0x0000000, 0x0000000, 0x000000},
134 {0, 0x0000000, 0x0000000, 0x000000},
135 {0, 0x0000000, 0x0000000, 0x000000},
136 {0, 0x0000000, 0x0000000, 0x000000},
137 {0, 0x0000000, 0x0000000, 0x000000},
138 {0, 0x0000000, 0x0000000, 0x000000},
139 {0, 0x0000000, 0x0000000, 0x000000},
140 {0, 0x0000000, 0x0000000, 0x000000},
141 {0, 0x0000000, 0x0000000, 0x000000},
142 {1, 0x08f0000, 0x08f2000, 0x172000} } },
143 {{{1, 0x0900000, 0x0902000, 0x174000},
144 {0, 0x0000000, 0x0000000, 0x000000},
145 {0, 0x0000000, 0x0000000, 0x000000},
146 {0, 0x0000000, 0x0000000, 0x000000},
147 {0, 0x0000000, 0x0000000, 0x000000},
148 {0, 0x0000000, 0x0000000, 0x000000},
149 {0, 0x0000000, 0x0000000, 0x000000},
150 {0, 0x0000000, 0x0000000, 0x000000},
151 {0, 0x0000000, 0x0000000, 0x000000},
152 {0, 0x0000000, 0x0000000, 0x000000},
153 {0, 0x0000000, 0x0000000, 0x000000},
154 {0, 0x0000000, 0x0000000, 0x000000},
155 {0, 0x0000000, 0x0000000, 0x000000},
156 {0, 0x0000000, 0x0000000, 0x000000},
157 {0, 0x0000000, 0x0000000, 0x000000},
158 {1, 0x09f0000, 0x09f2000, 0x176000} } },
159 {{{0, 0x0a00000, 0x0a02000, 0x178000},
160 {0, 0x0000000, 0x0000000, 0x000000},
161 {0, 0x0000000, 0x0000000, 0x000000},
162 {0, 0x0000000, 0x0000000, 0x000000},
163 {0, 0x0000000, 0x0000000, 0x000000},
164 {0, 0x0000000, 0x0000000, 0x000000},
165 {0, 0x0000000, 0x0000000, 0x000000},
166 {0, 0x0000000, 0x0000000, 0x000000},
167 {0, 0x0000000, 0x0000000, 0x000000},
168 {0, 0x0000000, 0x0000000, 0x000000},
169 {0, 0x0000000, 0x0000000, 0x000000},
170 {0, 0x0000000, 0x0000000, 0x000000},
171 {0, 0x0000000, 0x0000000, 0x000000},
172 {0, 0x0000000, 0x0000000, 0x000000},
173 {0, 0x0000000, 0x0000000, 0x000000},
174 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
175 {{{0, 0x0b00000, 0x0b02000, 0x17c000},
176 {0, 0x0000000, 0x0000000, 0x000000},
177 {0, 0x0000000, 0x0000000, 0x000000},
178 {0, 0x0000000, 0x0000000, 0x000000},
179 {0, 0x0000000, 0x0000000, 0x000000},
180 {0, 0x0000000, 0x0000000, 0x000000},
181 {0, 0x0000000, 0x0000000, 0x000000},
182 {0, 0x0000000, 0x0000000, 0x000000},
183 {0, 0x0000000, 0x0000000, 0x000000},
184 {0, 0x0000000, 0x0000000, 0x000000},
185 {0, 0x0000000, 0x0000000, 0x000000},
186 {0, 0x0000000, 0x0000000, 0x000000},
187 {0, 0x0000000, 0x0000000, 0x000000},
188 {0, 0x0000000, 0x0000000, 0x000000},
189 {0, 0x0000000, 0x0000000, 0x000000},
190 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
191 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
192 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
193 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
194 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
195 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
196 {{{1, 0x1100000, 0x1101000, 0x160000} } },
197 {{{1, 0x1200000, 0x1201000, 0x161000} } },
198 {{{1, 0x1300000, 0x1301000, 0x162000} } },
199 {{{1, 0x1400000, 0x1401000, 0x163000} } },
200 {{{1, 0x1500000, 0x1501000, 0x165000} } },
201 {{{1, 0x1600000, 0x1601000, 0x166000} } },
202 {{{0, 0, 0, 0} } },
203 {{{0, 0, 0, 0} } },
204 {{{0, 0, 0, 0} } },
205 {{{0, 0, 0, 0} } },
206 {{{0, 0, 0, 0} } },
207 {{{0, 0, 0, 0} } },
208 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
209 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
210 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
211 {{{0} } },
212 {{{1, 0x2100000, 0x2102000, 0x120000},
213 {1, 0x2110000, 0x2120000, 0x130000},
214 {1, 0x2120000, 0x2122000, 0x124000},
215 {1, 0x2130000, 0x2132000, 0x126000},
216 {1, 0x2140000, 0x2142000, 0x128000},
217 {1, 0x2150000, 0x2152000, 0x12a000},
218 {1, 0x2160000, 0x2170000, 0x110000},
219 {1, 0x2170000, 0x2172000, 0x12e000},
220 {0, 0x0000000, 0x0000000, 0x000000},
221 {0, 0x0000000, 0x0000000, 0x000000},
222 {0, 0x0000000, 0x0000000, 0x000000},
223 {0, 0x0000000, 0x0000000, 0x000000},
224 {0, 0x0000000, 0x0000000, 0x000000},
225 {0, 0x0000000, 0x0000000, 0x000000},
226 {0, 0x0000000, 0x0000000, 0x000000},
227 {0, 0x0000000, 0x0000000, 0x000000} } },
228 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
229 {{{0} } },
230 {{{0} } },
231 {{{0} } },
232 {{{0} } },
233 {{{0} } },
234 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
235 {{{1, 0x2900000, 0x2901000, 0x16b000} } },
236 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
237 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
238 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
239 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
240 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
241 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
242 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
243 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
244 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
245 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
246 {{{0} } },
247 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
248 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
249 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
250 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
251 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
252 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
253 {{{0} } },
254 {{{0} } },
255 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
256 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
257 {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
258 };
259
260 /*
261 * top 12 bits of crb internal address (hub, agent)
262 */
263 unsigned qla82xx_crb_hub_agt[64] = {
264 0,
265 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
266 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
267 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
268 0,
269 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
270 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
271 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
272 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
273 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
274 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
275 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
276 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
278 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
280 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
291 0,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
293 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
294 0,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
296 0,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
298 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
299 0,
300 0,
301 0,
302 0,
303 0,
304 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
305 0,
306 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
307 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
308 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
309 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
310 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
311 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
312 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
313 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
314 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
315 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
316 0,
317 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
318 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
321 0,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
323 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
324 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
325 0,
326 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
327 0,
328 };
329
330 /* Device states */
331 char *qdev_state[] = {
332 "Unknown",
333 "Cold",
334 "Initializing",
335 "Ready",
336 "Need Reset",
337 "Need Quiescent",
338 "Failed",
339 "Quiescent",
340 };
341
342 /*
343 * In: 'off' is offset from CRB space in 128M pci map
344 * Out: 'off' is 2M pci map addr
345 * side effect: lock crb window
346 */
347 static void
348 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
349 {
350 u32 win_read;
351
352 ha->crb_win = CRB_HI(*off);
353 writel(ha->crb_win,
354 (void *)(CRB_WINDOW_2M + ha->nx_pcibase));
355
356 /* Read back value to make sure write has gone through before trying
357 * to use it.
358 */
359 win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
360 if (win_read != ha->crb_win) {
361 DEBUG2(qla_printk(KERN_INFO, ha,
362 "%s: Written crbwin (0x%x) != Read crbwin (0x%x), "
363 "off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
364 }
365 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
366 }
367
368 static inline unsigned long
369 qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
370 {
371 /* See if we are currently pointing to the region we want to use next */
372 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
373 /* No need to change window. PCIX and PCIEregs are in both
374 * regs are in both windows.
375 */
376 return off;
377 }
378
379 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
380 /* We are in first CRB window */
381 if (ha->curr_window != 0)
382 WARN_ON(1);
383 return off;
384 }
385
386 if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
387 /* We are in second CRB window */
388 off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
389
390 if (ha->curr_window != 1)
391 return off;
392
393 /* We are in the QM or direct access
394 * register region - do nothing
395 */
396 if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
397 (off < QLA82XX_PCI_CAMQM_MAX))
398 return off;
399 }
400 /* strange address given */
401 qla_printk(KERN_WARNING, ha,
402 "%s: Warning: unm_nic_pci_set_crbwindow called with"
403 " an unknown address(%llx)\n", QLA2XXX_DRIVER_NAME, off);
404 return off;
405 }
406
407 static int
408 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
409 {
410 struct crb_128M_2M_sub_block_map *m;
411
412 if (*off >= QLA82XX_CRB_MAX)
413 return -1;
414
415 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
416 *off = (*off - QLA82XX_PCI_CAMQM) +
417 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
418 return 0;
419 }
420
421 if (*off < QLA82XX_PCI_CRBSPACE)
422 return -1;
423
424 *off -= QLA82XX_PCI_CRBSPACE;
425
426 /* Try direct map */
427 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
428
429 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
430 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
431 return 0;
432 }
433 /* Not in direct map, use crb window */
434 return 1;
435 }
436
437 #define CRB_WIN_LOCK_TIMEOUT 100000000
438 static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
439 {
440 int done = 0, timeout = 0;
441
442 while (!done) {
443 /* acquire semaphore3 from PCI HW block */
444 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
445 if (done == 1)
446 break;
447 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
448 return -1;
449 timeout++;
450 }
451 qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
452 return 0;
453 }
454
455 int
456 qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
457 {
458 unsigned long flags = 0;
459 int rv;
460
461 rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
462
463 BUG_ON(rv == -1);
464
465 if (rv == 1) {
466 write_lock_irqsave(&ha->hw_lock, flags);
467 qla82xx_crb_win_lock(ha);
468 qla82xx_pci_set_crbwindow_2M(ha, &off);
469 }
470
471 writel(data, (void __iomem *)off);
472
473 if (rv == 1) {
474 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
475 write_unlock_irqrestore(&ha->hw_lock, flags);
476 }
477 return 0;
478 }
479
480 int
481 qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
482 {
483 unsigned long flags = 0;
484 int rv;
485 u32 data;
486
487 rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
488
489 BUG_ON(rv == -1);
490
491 if (rv == 1) {
492 write_lock_irqsave(&ha->hw_lock, flags);
493 qla82xx_crb_win_lock(ha);
494 qla82xx_pci_set_crbwindow_2M(ha, &off);
495 }
496 data = RD_REG_DWORD((void __iomem *)off);
497
498 if (rv == 1) {
499 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
500 write_unlock_irqrestore(&ha->hw_lock, flags);
501 }
502 return data;
503 }
504
505 #define IDC_LOCK_TIMEOUT 100000000
506 int qla82xx_idc_lock(struct qla_hw_data *ha)
507 {
508 int i;
509 int done = 0, timeout = 0;
510
511 while (!done) {
512 /* acquire semaphore5 from PCI HW block */
513 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
514 if (done == 1)
515 break;
516 if (timeout >= IDC_LOCK_TIMEOUT)
517 return -1;
518
519 timeout++;
520
521 /* Yield CPU */
522 if (!in_interrupt())
523 schedule();
524 else {
525 for (i = 0; i < 20; i++)
526 cpu_relax();
527 }
528 }
529
530 return 0;
531 }
532
533 void qla82xx_idc_unlock(struct qla_hw_data *ha)
534 {
535 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
536 }
537
538 /* PCI Windowing for DDR regions. */
539 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
540 (((addr) <= (high)) && ((addr) >= (low)))
541 /*
542 * check memory access boundary.
543 * used by test agent. support ddr access only for now
544 */
545 static unsigned long
546 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
547 unsigned long long addr, int size)
548 {
549 if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
550 QLA82XX_ADDR_DDR_NET_MAX) ||
551 !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
552 QLA82XX_ADDR_DDR_NET_MAX) ||
553 ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
554 return 0;
555 else
556 return 1;
557 }
558
559 int qla82xx_pci_set_window_warning_count;
560
561 static unsigned long
562 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
563 {
564 int window;
565 u32 win_read;
566
567 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
568 QLA82XX_ADDR_DDR_NET_MAX)) {
569 /* DDR network side */
570 window = MN_WIN(addr);
571 ha->ddr_mn_window = window;
572 qla82xx_wr_32(ha,
573 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
574 win_read = qla82xx_rd_32(ha,
575 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
576 if ((win_read << 17) != window) {
577 qla_printk(KERN_WARNING, ha,
578 "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
579 __func__, window, win_read);
580 }
581 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
582 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
583 QLA82XX_ADDR_OCM0_MAX)) {
584 unsigned int temp1;
585 if ((addr & 0x00ff800) == 0xff800) {
586 qla_printk(KERN_WARNING, ha,
587 "%s: QM access not handled.\n", __func__);
588 addr = -1UL;
589 }
590 window = OCM_WIN(addr);
591 ha->ddr_mn_window = window;
592 qla82xx_wr_32(ha,
593 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
594 win_read = qla82xx_rd_32(ha,
595 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
596 temp1 = ((window & 0x1FF) << 7) |
597 ((window & 0x0FFFE0000) >> 17);
598 if (win_read != temp1) {
599 qla_printk(KERN_WARNING, ha,
600 "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x)\n",
601 __func__, temp1, win_read);
602 }
603 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
604
605 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
606 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
607 /* QDR network side */
608 window = MS_WIN(addr);
609 ha->qdr_sn_window = window;
610 qla82xx_wr_32(ha,
611 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
612 win_read = qla82xx_rd_32(ha,
613 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
614 if (win_read != window) {
615 qla_printk(KERN_WARNING, ha,
616 "%s: Written MSwin (0x%x) != Read MSwin (0x%x)\n",
617 __func__, window, win_read);
618 }
619 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
620 } else {
621 /*
622 * peg gdb frequently accesses memory that doesn't exist,
623 * this limits the chit chat so debugging isn't slowed down.
624 */
625 if ((qla82xx_pci_set_window_warning_count++ < 8) ||
626 (qla82xx_pci_set_window_warning_count%64 == 0)) {
627 qla_printk(KERN_WARNING, ha,
628 "%s: Warning:%s Unknown address range!\n", __func__,
629 QLA2XXX_DRIVER_NAME);
630 }
631 addr = -1UL;
632 }
633 return addr;
634 }
635
636 /* check if address is in the same windows as the previous access */
637 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
638 unsigned long long addr)
639 {
640 int window;
641 unsigned long long qdr_max;
642
643 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
644
645 /* DDR network side */
646 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
647 QLA82XX_ADDR_DDR_NET_MAX))
648 BUG();
649 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
650 QLA82XX_ADDR_OCM0_MAX))
651 return 1;
652 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
653 QLA82XX_ADDR_OCM1_MAX))
654 return 1;
655 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
656 /* QDR network side */
657 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
658 if (ha->qdr_sn_window == window)
659 return 1;
660 }
661 return 0;
662 }
663
664 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
665 u64 off, void *data, int size)
666 {
667 unsigned long flags;
668 void *addr = NULL;
669 int ret = 0;
670 u64 start;
671 uint8_t *mem_ptr = NULL;
672 unsigned long mem_base;
673 unsigned long mem_page;
674
675 write_lock_irqsave(&ha->hw_lock, flags);
676
677 /*
678 * If attempting to access unknown address or straddle hw windows,
679 * do not access.
680 */
681 start = qla82xx_pci_set_window(ha, off);
682 if ((start == -1UL) ||
683 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
684 write_unlock_irqrestore(&ha->hw_lock, flags);
685 qla_printk(KERN_ERR, ha,
686 "%s out of bound pci memory access. "
687 "offset is 0x%llx\n", QLA2XXX_DRIVER_NAME, off);
688 return -1;
689 }
690
691 write_unlock_irqrestore(&ha->hw_lock, flags);
692 mem_base = pci_resource_start(ha->pdev, 0);
693 mem_page = start & PAGE_MASK;
694 /* Map two pages whenever user tries to access addresses in two
695 * consecutive pages.
696 */
697 if (mem_page != ((start + size - 1) & PAGE_MASK))
698 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
699 else
700 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
701 if (mem_ptr == 0UL) {
702 *(u8 *)data = 0;
703 return -1;
704 }
705 addr = mem_ptr;
706 addr += start & (PAGE_SIZE - 1);
707 write_lock_irqsave(&ha->hw_lock, flags);
708
709 switch (size) {
710 case 1:
711 *(u8 *)data = readb(addr);
712 break;
713 case 2:
714 *(u16 *)data = readw(addr);
715 break;
716 case 4:
717 *(u32 *)data = readl(addr);
718 break;
719 case 8:
720 *(u64 *)data = readq(addr);
721 break;
722 default:
723 ret = -1;
724 break;
725 }
726 write_unlock_irqrestore(&ha->hw_lock, flags);
727
728 if (mem_ptr)
729 iounmap(mem_ptr);
730 return ret;
731 }
732
733 static int
734 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
735 u64 off, void *data, int size)
736 {
737 unsigned long flags;
738 void *addr = NULL;
739 int ret = 0;
740 u64 start;
741 uint8_t *mem_ptr = NULL;
742 unsigned long mem_base;
743 unsigned long mem_page;
744
745 write_lock_irqsave(&ha->hw_lock, flags);
746
747 /*
748 * If attempting to access unknown address or straddle hw windows,
749 * do not access.
750 */
751 start = qla82xx_pci_set_window(ha, off);
752 if ((start == -1UL) ||
753 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
754 write_unlock_irqrestore(&ha->hw_lock, flags);
755 qla_printk(KERN_ERR, ha,
756 "%s out of bound pci memory access. "
757 "offset is 0x%llx\n", QLA2XXX_DRIVER_NAME, off);
758 return -1;
759 }
760
761 write_unlock_irqrestore(&ha->hw_lock, flags);
762 mem_base = pci_resource_start(ha->pdev, 0);
763 mem_page = start & PAGE_MASK;
764 /* Map two pages whenever user tries to access addresses in two
765 * consecutive pages.
766 */
767 if (mem_page != ((start + size - 1) & PAGE_MASK))
768 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
769 else
770 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
771 if (mem_ptr == 0UL)
772 return -1;
773
774 addr = mem_ptr;
775 addr += start & (PAGE_SIZE - 1);
776 write_lock_irqsave(&ha->hw_lock, flags);
777
778 switch (size) {
779 case 1:
780 writeb(*(u8 *)data, addr);
781 break;
782 case 2:
783 writew(*(u16 *)data, addr);
784 break;
785 case 4:
786 writel(*(u32 *)data, addr);
787 break;
788 case 8:
789 writeq(*(u64 *)data, addr);
790 break;
791 default:
792 ret = -1;
793 break;
794 }
795 write_unlock_irqrestore(&ha->hw_lock, flags);
796 if (mem_ptr)
797 iounmap(mem_ptr);
798 return ret;
799 }
800
801 #define MTU_FUDGE_FACTOR 100
802 static unsigned long
803 qla82xx_decode_crb_addr(unsigned long addr)
804 {
805 int i;
806 unsigned long base_addr, offset, pci_base;
807
808 if (!qla82xx_crb_table_initialized)
809 qla82xx_crb_addr_transform_setup();
810
811 pci_base = ADDR_ERROR;
812 base_addr = addr & 0xfff00000;
813 offset = addr & 0x000fffff;
814
815 for (i = 0; i < MAX_CRB_XFORM; i++) {
816 if (crb_addr_xform[i] == base_addr) {
817 pci_base = i << 20;
818 break;
819 }
820 }
821 if (pci_base == ADDR_ERROR)
822 return pci_base;
823 return pci_base + offset;
824 }
825
826 static long rom_max_timeout = 100;
827 static long qla82xx_rom_lock_timeout = 100;
828
829 static int
830 qla82xx_rom_lock(struct qla_hw_data *ha)
831 {
832 int done = 0, timeout = 0;
833
834 while (!done) {
835 /* acquire semaphore2 from PCI HW block */
836 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
837 if (done == 1)
838 break;
839 if (timeout >= qla82xx_rom_lock_timeout)
840 return -1;
841 timeout++;
842 }
843 qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
844 return 0;
845 }
846
847 static void
848 qla82xx_rom_unlock(struct qla_hw_data *ha)
849 {
850 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
851 }
852
853 static int
854 qla82xx_wait_rom_busy(struct qla_hw_data *ha)
855 {
856 long timeout = 0;
857 long done = 0 ;
858
859 while (done == 0) {
860 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
861 done &= 4;
862 timeout++;
863 if (timeout >= rom_max_timeout) {
864 DEBUG(qla_printk(KERN_INFO, ha,
865 "%s: Timeout reached waiting for rom busy",
866 QLA2XXX_DRIVER_NAME));
867 return -1;
868 }
869 }
870 return 0;
871 }
872
873 static int
874 qla82xx_wait_rom_done(struct qla_hw_data *ha)
875 {
876 long timeout = 0;
877 long done = 0 ;
878
879 while (done == 0) {
880 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
881 done &= 2;
882 timeout++;
883 if (timeout >= rom_max_timeout) {
884 DEBUG(qla_printk(KERN_INFO, ha,
885 "%s: Timeout reached waiting for rom done",
886 QLA2XXX_DRIVER_NAME));
887 return -1;
888 }
889 }
890 return 0;
891 }
892
893 static int
894 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
895 {
896 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
897 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
898 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
899 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
900 qla82xx_wait_rom_busy(ha);
901 if (qla82xx_wait_rom_done(ha)) {
902 qla_printk(KERN_WARNING, ha,
903 "%s: Error waiting for rom done\n",
904 QLA2XXX_DRIVER_NAME);
905 return -1;
906 }
907 /* Reset abyte_cnt and dummy_byte_cnt */
908 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
909 udelay(10);
910 cond_resched();
911 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
912 *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
913 return 0;
914 }
915
916 static int
917 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
918 {
919 int ret, loops = 0;
920
921 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
922 udelay(100);
923 schedule();
924 loops++;
925 }
926 if (loops >= 50000) {
927 qla_printk(KERN_INFO, ha,
928 "%s: qla82xx_rom_lock failed\n",
929 QLA2XXX_DRIVER_NAME);
930 return -1;
931 }
932 ret = qla82xx_do_rom_fast_read(ha, addr, valp);
933 qla82xx_rom_unlock(ha);
934 return ret;
935 }
936
937 static int
938 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
939 {
940 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
941 qla82xx_wait_rom_busy(ha);
942 if (qla82xx_wait_rom_done(ha)) {
943 qla_printk(KERN_WARNING, ha,
944 "Error waiting for rom done\n");
945 return -1;
946 }
947 *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
948 return 0;
949 }
950
951 static int
952 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
953 {
954 long timeout = 0;
955 uint32_t done = 1 ;
956 uint32_t val;
957 int ret = 0;
958
959 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
960 while ((done != 0) && (ret == 0)) {
961 ret = qla82xx_read_status_reg(ha, &val);
962 done = val & 1;
963 timeout++;
964 udelay(10);
965 cond_resched();
966 if (timeout >= 50000) {
967 qla_printk(KERN_WARNING, ha,
968 "Timeout reached waiting for write finish");
969 return -1;
970 }
971 }
972 return ret;
973 }
974
975 static int
976 qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
977 {
978 uint32_t val;
979 qla82xx_wait_rom_busy(ha);
980 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
981 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
982 qla82xx_wait_rom_busy(ha);
983 if (qla82xx_wait_rom_done(ha))
984 return -1;
985 if (qla82xx_read_status_reg(ha, &val) != 0)
986 return -1;
987 if ((val & 2) != 2)
988 return -1;
989 return 0;
990 }
991
992 static int
993 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
994 {
995 if (qla82xx_flash_set_write_enable(ha))
996 return -1;
997 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
998 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
999 if (qla82xx_wait_rom_done(ha)) {
1000 qla_printk(KERN_WARNING, ha,
1001 "Error waiting for rom done\n");
1002 return -1;
1003 }
1004 return qla82xx_flash_wait_write_finish(ha);
1005 }
1006
1007 static int
1008 qla82xx_write_disable_flash(struct qla_hw_data *ha)
1009 {
1010 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1011 if (qla82xx_wait_rom_done(ha)) {
1012 qla_printk(KERN_WARNING, ha,
1013 "Error waiting for rom done\n");
1014 return -1;
1015 }
1016 return 0;
1017 }
1018
1019 static int
1020 ql82xx_rom_lock_d(struct qla_hw_data *ha)
1021 {
1022 int loops = 0;
1023 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1024 udelay(100);
1025 cond_resched();
1026 loops++;
1027 }
1028 if (loops >= 50000) {
1029 qla_printk(KERN_WARNING, ha, "ROM lock failed\n");
1030 return -1;
1031 }
1032 return 0;;
1033 }
1034
1035 static int
1036 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1037 uint32_t data)
1038 {
1039 int ret = 0;
1040
1041 ret = ql82xx_rom_lock_d(ha);
1042 if (ret < 0) {
1043 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
1044 return ret;
1045 }
1046
1047 if (qla82xx_flash_set_write_enable(ha))
1048 goto done_write;
1049
1050 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1051 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1052 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1053 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1054 qla82xx_wait_rom_busy(ha);
1055 if (qla82xx_wait_rom_done(ha)) {
1056 qla_printk(KERN_WARNING, ha,
1057 "Error waiting for rom done\n");
1058 ret = -1;
1059 goto done_write;
1060 }
1061
1062 ret = qla82xx_flash_wait_write_finish(ha);
1063
1064 done_write:
1065 qla82xx_rom_unlock(ha);
1066 return ret;
1067 }
1068
1069 /* This routine does CRB initialize sequence
1070 * to put the ISP into operational state
1071 */
1072 static int
1073 qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1074 {
1075 int addr, val;
1076 int i ;
1077 struct crb_addr_pair *buf;
1078 unsigned long off;
1079 unsigned offset, n;
1080 struct qla_hw_data *ha = vha->hw;
1081
1082 struct crb_addr_pair {
1083 long addr;
1084 long data;
1085 };
1086
1087 /* Halt all the indiviual PEGs and other blocks of the ISP */
1088 qla82xx_rom_lock(ha);
1089
1090 /* disable all I2Q */
1091 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1092 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1093 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1094 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1095 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1096 qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1097
1098 /* disable all niu interrupts */
1099 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1100 /* disable xge rx/tx */
1101 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1102 /* disable xg1 rx/tx */
1103 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1104 /* disable sideband mac */
1105 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1106 /* disable ap0 mac */
1107 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1108 /* disable ap1 mac */
1109 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1110
1111 /* halt sre */
1112 val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1113 qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1114
1115 /* halt epg */
1116 qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1117
1118 /* halt timers */
1119 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1120 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1121 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1122 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1123 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1124 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1125
1126 /* halt pegs */
1127 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1128 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1129 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1130 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1131 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1132 msleep(20);
1133
1134 /* big hammer */
1135 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1136 /* don't reset CAM block on reset */
1137 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1138 else
1139 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1140
1141 /* reset ms */
1142 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1143 val |= (1 << 1);
1144 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1145 msleep(20);
1146
1147 /* unreset ms */
1148 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1149 val &= ~(1 << 1);
1150 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1151 msleep(20);
1152
1153 qla82xx_rom_unlock(ha);
1154
1155 /* Read the signature value from the flash.
1156 * Offset 0: Contain signature (0xcafecafe)
1157 * Offset 4: Offset and number of addr/value pairs
1158 * that present in CRB initialize sequence
1159 */
1160 if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1161 qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1162 qla_printk(KERN_WARNING, ha,
1163 "[ERROR] Reading crb_init area: n: %08x\n", n);
1164 return -1;
1165 }
1166
1167 /* Offset in flash = lower 16 bits
1168 * Number of enteries = upper 16 bits
1169 */
1170 offset = n & 0xffffU;
1171 n = (n >> 16) & 0xffffU;
1172
1173 /* number of addr/value pair should not exceed 1024 enteries */
1174 if (n >= 1024) {
1175 qla_printk(KERN_WARNING, ha,
1176 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1177 QLA2XXX_DRIVER_NAME, __func__, n);
1178 return -1;
1179 }
1180
1181 qla_printk(KERN_INFO, ha,
1182 "%s: %d CRB init values found in ROM.\n", QLA2XXX_DRIVER_NAME, n);
1183
1184 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1185 if (buf == NULL) {
1186 qla_printk(KERN_WARNING, ha,
1187 "%s: [ERROR] Unable to malloc memory.\n",
1188 QLA2XXX_DRIVER_NAME);
1189 return -1;
1190 }
1191
1192 for (i = 0; i < n; i++) {
1193 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1194 qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1195 kfree(buf);
1196 return -1;
1197 }
1198
1199 buf[i].addr = addr;
1200 buf[i].data = val;
1201 }
1202
1203 for (i = 0; i < n; i++) {
1204 /* Translate internal CRB initialization
1205 * address to PCI bus address
1206 */
1207 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1208 QLA82XX_PCI_CRBSPACE;
1209 /* Not all CRB addr/value pair to be written,
1210 * some of them are skipped
1211 */
1212
1213 /* skipping cold reboot MAGIC */
1214 if (off == QLA82XX_CAM_RAM(0x1fc))
1215 continue;
1216
1217 /* do not reset PCI */
1218 if (off == (ROMUSB_GLB + 0xbc))
1219 continue;
1220
1221 /* skip core clock, so that firmware can increase the clock */
1222 if (off == (ROMUSB_GLB + 0xc8))
1223 continue;
1224
1225 /* skip the function enable register */
1226 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1227 continue;
1228
1229 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1230 continue;
1231
1232 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1233 continue;
1234
1235 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1236 continue;
1237
1238 if (off == ADDR_ERROR) {
1239 qla_printk(KERN_WARNING, ha,
1240 "%s: [ERROR] Unknown addr: 0x%08lx\n",
1241 QLA2XXX_DRIVER_NAME, buf[i].addr);
1242 continue;
1243 }
1244
1245 qla82xx_wr_32(ha, off, buf[i].data);
1246
1247 /* ISP requires much bigger delay to settle down,
1248 * else crb_window returns 0xffffffff
1249 */
1250 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1251 msleep(1000);
1252
1253 /* ISP requires millisec delay between
1254 * successive CRB register updation
1255 */
1256 msleep(1);
1257 }
1258
1259 kfree(buf);
1260
1261 /* Resetting the data and instruction cache */
1262 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1263 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1264 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1265
1266 /* Clear all protocol processing engines */
1267 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1268 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1269 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1270 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1271 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1272 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1273 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1274 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1275 return 0;
1276 }
1277
1278 static int
1279 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1280 u64 off, void *data, int size)
1281 {
1282 int i, j, ret = 0, loop, sz[2], off0;
1283 int scale, shift_amount, startword;
1284 uint32_t temp;
1285 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1286
1287 /*
1288 * If not MN, go check for MS or invalid.
1289 */
1290 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1291 mem_crb = QLA82XX_CRB_QDR_NET;
1292 else {
1293 mem_crb = QLA82XX_CRB_DDR_NET;
1294 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1295 return qla82xx_pci_mem_write_direct(ha,
1296 off, data, size);
1297 }
1298
1299 off0 = off & 0x7;
1300 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1301 sz[1] = size - sz[0];
1302
1303 off8 = off & 0xfffffff0;
1304 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1305 shift_amount = 4;
1306 scale = 2;
1307 startword = (off & 0xf)/8;
1308
1309 for (i = 0; i < loop; i++) {
1310 if (qla82xx_pci_mem_read_2M(ha, off8 +
1311 (i << shift_amount), &word[i * scale], 8))
1312 return -1;
1313 }
1314
1315 switch (size) {
1316 case 1:
1317 tmpw = *((uint8_t *)data);
1318 break;
1319 case 2:
1320 tmpw = *((uint16_t *)data);
1321 break;
1322 case 4:
1323 tmpw = *((uint32_t *)data);
1324 break;
1325 case 8:
1326 default:
1327 tmpw = *((uint64_t *)data);
1328 break;
1329 }
1330
1331 if (sz[0] == 8) {
1332 word[startword] = tmpw;
1333 } else {
1334 word[startword] &=
1335 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1336 word[startword] |= tmpw << (off0 * 8);
1337 }
1338 if (sz[1] != 0) {
1339 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1340 word[startword+1] |= tmpw >> (sz[0] * 8);
1341 }
1342
1343 for (i = 0; i < loop; i++) {
1344 temp = off8 + (i << shift_amount);
1345 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1346 temp = 0;
1347 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1348 temp = word[i * scale] & 0xffffffff;
1349 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1350 temp = (word[i * scale] >> 32) & 0xffffffff;
1351 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1352 temp = word[i*scale + 1] & 0xffffffff;
1353 qla82xx_wr_32(ha, mem_crb +
1354 MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1355 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1356 qla82xx_wr_32(ha, mem_crb +
1357 MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1358
1359 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1360 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1361 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1362 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1363
1364 for (j = 0; j < MAX_CTL_CHECK; j++) {
1365 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1366 if ((temp & MIU_TA_CTL_BUSY) == 0)
1367 break;
1368 }
1369
1370 if (j >= MAX_CTL_CHECK) {
1371 if (printk_ratelimit())
1372 dev_err(&ha->pdev->dev,
1373 "failed to write through agent\n");
1374 ret = -1;
1375 break;
1376 }
1377 }
1378
1379 return ret;
1380 }
1381
1382 static int
1383 qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1384 {
1385 int i;
1386 long size = 0;
1387 long flashaddr = ha->flt_region_bootload << 2;
1388 long memaddr = BOOTLD_START;
1389 u64 data;
1390 u32 high, low;
1391 size = (IMAGE_START - BOOTLD_START) / 8;
1392
1393 for (i = 0; i < size; i++) {
1394 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1395 (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1396 return -1;
1397 }
1398 data = ((u64)high << 32) | low ;
1399 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1400 flashaddr += 8;
1401 memaddr += 8;
1402
1403 if (i % 0x1000 == 0)
1404 msleep(1);
1405 }
1406 udelay(100);
1407 read_lock(&ha->hw_lock);
1408 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1409 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1410 read_unlock(&ha->hw_lock);
1411 return 0;
1412 }
1413
1414 int
1415 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1416 u64 off, void *data, int size)
1417 {
1418 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1419 int shift_amount;
1420 uint32_t temp;
1421 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1422
1423 /*
1424 * If not MN, go check for MS or invalid.
1425 */
1426
1427 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1428 mem_crb = QLA82XX_CRB_QDR_NET;
1429 else {
1430 mem_crb = QLA82XX_CRB_DDR_NET;
1431 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1432 return qla82xx_pci_mem_read_direct(ha,
1433 off, data, size);
1434 }
1435
1436 off8 = off & 0xfffffff0;
1437 off0[0] = off & 0xf;
1438 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1439 shift_amount = 4;
1440 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1441 off0[1] = 0;
1442 sz[1] = size - sz[0];
1443
1444 for (i = 0; i < loop; i++) {
1445 temp = off8 + (i << shift_amount);
1446 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1447 temp = 0;
1448 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1449 temp = MIU_TA_CTL_ENABLE;
1450 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1451 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1452 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1453
1454 for (j = 0; j < MAX_CTL_CHECK; j++) {
1455 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1456 if ((temp & MIU_TA_CTL_BUSY) == 0)
1457 break;
1458 }
1459
1460 if (j >= MAX_CTL_CHECK) {
1461 if (printk_ratelimit())
1462 dev_err(&ha->pdev->dev,
1463 "failed to read through agent\n");
1464 break;
1465 }
1466
1467 start = off0[i] >> 2;
1468 end = (off0[i] + sz[i] - 1) >> 2;
1469 for (k = start; k <= end; k++) {
1470 temp = qla82xx_rd_32(ha,
1471 mem_crb + MIU_TEST_AGT_RDDATA(k));
1472 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1473 }
1474 }
1475
1476 if (j >= MAX_CTL_CHECK)
1477 return -1;
1478
1479 if ((off0[0] & 7) == 0) {
1480 val = word[0];
1481 } else {
1482 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1483 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1484 }
1485
1486 switch (size) {
1487 case 1:
1488 *(uint8_t *)data = val;
1489 break;
1490 case 2:
1491 *(uint16_t *)data = val;
1492 break;
1493 case 4:
1494 *(uint32_t *)data = val;
1495 break;
1496 case 8:
1497 *(uint64_t *)data = val;
1498 break;
1499 }
1500 return 0;
1501 }
1502
1503
1504 static struct qla82xx_uri_table_desc *
1505 qla82xx_get_table_desc(const u8 *unirom, int section)
1506 {
1507 uint32_t i;
1508 struct qla82xx_uri_table_desc *directory =
1509 (struct qla82xx_uri_table_desc *)&unirom[0];
1510 __le32 offset;
1511 __le32 tab_type;
1512 __le32 entries = cpu_to_le32(directory->num_entries);
1513
1514 for (i = 0; i < entries; i++) {
1515 offset = cpu_to_le32(directory->findex) +
1516 (i * cpu_to_le32(directory->entry_size));
1517 tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1518
1519 if (tab_type == section)
1520 return (struct qla82xx_uri_table_desc *)&unirom[offset];
1521 }
1522
1523 return NULL;
1524 }
1525
1526 static struct qla82xx_uri_data_desc *
1527 qla82xx_get_data_desc(struct qla_hw_data *ha,
1528 u32 section, u32 idx_offset)
1529 {
1530 const u8 *unirom = ha->hablob->fw->data;
1531 int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1532 struct qla82xx_uri_table_desc *tab_desc = NULL;
1533 __le32 offset;
1534
1535 tab_desc = qla82xx_get_table_desc(unirom, section);
1536 if (!tab_desc)
1537 return NULL;
1538
1539 offset = cpu_to_le32(tab_desc->findex) +
1540 (cpu_to_le32(tab_desc->entry_size) * idx);
1541
1542 return (struct qla82xx_uri_data_desc *)&unirom[offset];
1543 }
1544
1545 static u8 *
1546 qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1547 {
1548 u32 offset = BOOTLD_START;
1549 struct qla82xx_uri_data_desc *uri_desc = NULL;
1550
1551 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1552 uri_desc = qla82xx_get_data_desc(ha,
1553 QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1554 if (uri_desc)
1555 offset = cpu_to_le32(uri_desc->findex);
1556 }
1557
1558 return (u8 *)&ha->hablob->fw->data[offset];
1559 }
1560
1561 static __le32
1562 qla82xx_get_fw_size(struct qla_hw_data *ha)
1563 {
1564 struct qla82xx_uri_data_desc *uri_desc = NULL;
1565
1566 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1567 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1568 QLA82XX_URI_FIRMWARE_IDX_OFF);
1569 if (uri_desc)
1570 return cpu_to_le32(uri_desc->size);
1571 }
1572
1573 return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1574 }
1575
1576 static u8 *
1577 qla82xx_get_fw_offs(struct qla_hw_data *ha)
1578 {
1579 u32 offset = IMAGE_START;
1580 struct qla82xx_uri_data_desc *uri_desc = NULL;
1581
1582 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1583 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1584 QLA82XX_URI_FIRMWARE_IDX_OFF);
1585 if (uri_desc)
1586 offset = cpu_to_le32(uri_desc->findex);
1587 }
1588
1589 return (u8 *)&ha->hablob->fw->data[offset];
1590 }
1591
1592 /* PCI related functions */
1593 char *
1594 qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
1595 {
1596 int pcie_reg;
1597 struct qla_hw_data *ha = vha->hw;
1598 char lwstr[6];
1599 uint16_t lnk;
1600
1601 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1602 pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
1603 ha->link_width = (lnk >> 4) & 0x3f;
1604
1605 strcpy(str, "PCIe (");
1606 strcat(str, "2.5Gb/s ");
1607 snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
1608 strcat(str, lwstr);
1609 return str;
1610 }
1611
1612 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1613 {
1614 unsigned long val = 0;
1615 u32 control;
1616
1617 switch (region) {
1618 case 0:
1619 val = 0;
1620 break;
1621 case 1:
1622 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1623 val = control + QLA82XX_MSIX_TBL_SPACE;
1624 break;
1625 }
1626 return val;
1627 }
1628
1629
1630 int
1631 qla82xx_iospace_config(struct qla_hw_data *ha)
1632 {
1633 uint32_t len = 0;
1634
1635 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1636 qla_printk(KERN_WARNING, ha,
1637 "Failed to reserve selected regions (%s)\n",
1638 pci_name(ha->pdev));
1639 goto iospace_error_exit;
1640 }
1641
1642 /* Use MMIO operations for all accesses. */
1643 if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1644 qla_printk(KERN_ERR, ha,
1645 "region #0 not an MMIO resource (%s), aborting\n",
1646 pci_name(ha->pdev));
1647 goto iospace_error_exit;
1648 }
1649
1650 len = pci_resource_len(ha->pdev, 0);
1651 ha->nx_pcibase =
1652 (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1653 if (!ha->nx_pcibase) {
1654 qla_printk(KERN_ERR, ha,
1655 "cannot remap pcibase MMIO (%s), aborting\n",
1656 pci_name(ha->pdev));
1657 pci_release_regions(ha->pdev);
1658 goto iospace_error_exit;
1659 }
1660
1661 /* Mapping of IO base pointer */
1662 ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1663 0xbc000 + (ha->pdev->devfn << 11));
1664
1665 if (!ql2xdbwr) {
1666 ha->nxdb_wr_ptr =
1667 (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1668 (ha->pdev->devfn << 12)), 4);
1669 if (!ha->nxdb_wr_ptr) {
1670 qla_printk(KERN_ERR, ha,
1671 "cannot remap MMIO (%s), aborting\n",
1672 pci_name(ha->pdev));
1673 pci_release_regions(ha->pdev);
1674 goto iospace_error_exit;
1675 }
1676
1677 /* Mapping of IO base pointer,
1678 * door bell read and write pointer
1679 */
1680 ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1681 (ha->pdev->devfn * 8);
1682 } else {
1683 ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1684 QLA82XX_CAMRAM_DB1 :
1685 QLA82XX_CAMRAM_DB2);
1686 }
1687
1688 ha->max_req_queues = ha->max_rsp_queues = 1;
1689 ha->msix_count = ha->max_rsp_queues + 1;
1690 return 0;
1691
1692 iospace_error_exit:
1693 return -ENOMEM;
1694 }
1695
1696 /* GS related functions */
1697
1698 /* Initialization related functions */
1699
1700 /**
1701 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1702 * @ha: HA context
1703 *
1704 * Returns 0 on success.
1705 */
1706 int
1707 qla82xx_pci_config(scsi_qla_host_t *vha)
1708 {
1709 struct qla_hw_data *ha = vha->hw;
1710 int ret;
1711
1712 pci_set_master(ha->pdev);
1713 ret = pci_set_mwi(ha->pdev);
1714 ha->chip_revision = ha->pdev->revision;
1715 return 0;
1716 }
1717
1718 /**
1719 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1720 * @ha: HA context
1721 *
1722 * Returns 0 on success.
1723 */
1724 void
1725 qla82xx_reset_chip(scsi_qla_host_t *vha)
1726 {
1727 struct qla_hw_data *ha = vha->hw;
1728 ha->isp_ops->disable_intrs(ha);
1729 }
1730
1731 void qla82xx_config_rings(struct scsi_qla_host *vha)
1732 {
1733 struct qla_hw_data *ha = vha->hw;
1734 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1735 struct init_cb_81xx *icb;
1736 struct req_que *req = ha->req_q_map[0];
1737 struct rsp_que *rsp = ha->rsp_q_map[0];
1738
1739 /* Setup ring parameters in initialization control block. */
1740 icb = (struct init_cb_81xx *)ha->init_cb;
1741 icb->request_q_outpointer = __constant_cpu_to_le16(0);
1742 icb->response_q_inpointer = __constant_cpu_to_le16(0);
1743 icb->request_q_length = cpu_to_le16(req->length);
1744 icb->response_q_length = cpu_to_le16(rsp->length);
1745 icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1746 icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1747 icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1748 icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1749
1750 WRT_REG_DWORD((unsigned long __iomem *)&reg->req_q_out[0], 0);
1751 WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_in[0], 0);
1752 WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_out[0], 0);
1753 }
1754
1755 void qla82xx_reset_adapter(struct scsi_qla_host *vha)
1756 {
1757 struct qla_hw_data *ha = vha->hw;
1758 vha->flags.online = 0;
1759 qla2x00_try_to_stop_firmware(vha);
1760 ha->isp_ops->disable_intrs(ha);
1761 }
1762
1763 static int
1764 qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1765 {
1766 u64 *ptr64;
1767 u32 i, flashaddr, size;
1768 __le64 data;
1769
1770 size = (IMAGE_START - BOOTLD_START) / 8;
1771
1772 ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1773 flashaddr = BOOTLD_START;
1774
1775 for (i = 0; i < size; i++) {
1776 data = cpu_to_le64(ptr64[i]);
1777 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1778 return -EIO;
1779 flashaddr += 8;
1780 }
1781
1782 flashaddr = FLASH_ADDR_START;
1783 size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1784 ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1785
1786 for (i = 0; i < size; i++) {
1787 data = cpu_to_le64(ptr64[i]);
1788
1789 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1790 return -EIO;
1791 flashaddr += 8;
1792 }
1793 udelay(100);
1794
1795 /* Write a magic value to CAMRAM register
1796 * at a specified offset to indicate
1797 * that all data is written and
1798 * ready for firmware to initialize.
1799 */
1800 qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1801
1802 read_lock(&ha->hw_lock);
1803 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1804 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1805 read_unlock(&ha->hw_lock);
1806 return 0;
1807 }
1808
1809 static int
1810 qla82xx_set_product_offset(struct qla_hw_data *ha)
1811 {
1812 struct qla82xx_uri_table_desc *ptab_desc = NULL;
1813 const uint8_t *unirom = ha->hablob->fw->data;
1814 uint32_t i;
1815 __le32 entries;
1816 __le32 flags, file_chiprev, offset;
1817 uint8_t chiprev = ha->chip_revision;
1818 /* Hardcoding mn_present flag for P3P */
1819 int mn_present = 0;
1820 uint32_t flagbit;
1821
1822 ptab_desc = qla82xx_get_table_desc(unirom,
1823 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1824 if (!ptab_desc)
1825 return -1;
1826
1827 entries = cpu_to_le32(ptab_desc->num_entries);
1828
1829 for (i = 0; i < entries; i++) {
1830 offset = cpu_to_le32(ptab_desc->findex) +
1831 (i * cpu_to_le32(ptab_desc->entry_size));
1832 flags = cpu_to_le32(*((int *)&unirom[offset] +
1833 QLA82XX_URI_FLAGS_OFF));
1834 file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1835 QLA82XX_URI_CHIP_REV_OFF));
1836
1837 flagbit = mn_present ? 1 : 2;
1838
1839 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1840 ha->file_prd_off = offset;
1841 return 0;
1842 }
1843 }
1844 return -1;
1845 }
1846
1847 int
1848 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1849 {
1850 __le32 val;
1851 uint32_t min_size;
1852 struct qla_hw_data *ha = vha->hw;
1853 const struct firmware *fw = ha->hablob->fw;
1854
1855 ha->fw_type = fw_type;
1856
1857 if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1858 if (qla82xx_set_product_offset(ha))
1859 return -EINVAL;
1860
1861 min_size = QLA82XX_URI_FW_MIN_SIZE;
1862 } else {
1863 val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1864 if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1865 return -EINVAL;
1866
1867 min_size = QLA82XX_FW_MIN_SIZE;
1868 }
1869
1870 if (fw->size < min_size)
1871 return -EINVAL;
1872 return 0;
1873 }
1874
1875 static int
1876 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1877 {
1878 u32 val = 0;
1879 int retries = 60;
1880
1881 do {
1882 read_lock(&ha->hw_lock);
1883 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1884 read_unlock(&ha->hw_lock);
1885
1886 switch (val) {
1887 case PHAN_INITIALIZE_COMPLETE:
1888 case PHAN_INITIALIZE_ACK:
1889 return QLA_SUCCESS;
1890 case PHAN_INITIALIZE_FAILED:
1891 break;
1892 default:
1893 break;
1894 }
1895 qla_printk(KERN_WARNING, ha,
1896 "CRB_CMDPEG_STATE: 0x%x and retries: 0x%x\n",
1897 val, retries);
1898
1899 msleep(500);
1900
1901 } while (--retries);
1902
1903 qla_printk(KERN_INFO, ha,
1904 "Cmd Peg initialization failed: 0x%x.\n", val);
1905
1906 val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1907 read_lock(&ha->hw_lock);
1908 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1909 read_unlock(&ha->hw_lock);
1910 return QLA_FUNCTION_FAILED;
1911 }
1912
1913 static int
1914 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1915 {
1916 u32 val = 0;
1917 int retries = 60;
1918
1919 do {
1920 read_lock(&ha->hw_lock);
1921 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1922 read_unlock(&ha->hw_lock);
1923
1924 switch (val) {
1925 case PHAN_INITIALIZE_COMPLETE:
1926 case PHAN_INITIALIZE_ACK:
1927 return QLA_SUCCESS;
1928 case PHAN_INITIALIZE_FAILED:
1929 break;
1930 default:
1931 break;
1932 }
1933
1934 qla_printk(KERN_WARNING, ha,
1935 "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x\n",
1936 val, retries);
1937
1938 msleep(500);
1939
1940 } while (--retries);
1941
1942 qla_printk(KERN_INFO, ha,
1943 "Rcv Peg initialization failed: 0x%x.\n", val);
1944 read_lock(&ha->hw_lock);
1945 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1946 read_unlock(&ha->hw_lock);
1947 return QLA_FUNCTION_FAILED;
1948 }
1949
1950 /* ISR related functions */
1951 uint32_t qla82xx_isr_int_target_mask_enable[8] = {
1952 ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
1953 ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
1954 ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
1955 ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
1956 };
1957
1958 uint32_t qla82xx_isr_int_target_status[8] = {
1959 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
1960 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
1961 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
1962 ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
1963 };
1964
1965 static struct qla82xx_legacy_intr_set legacy_intr[] = \
1966 QLA82XX_LEGACY_INTR_CONFIG;
1967
1968 /*
1969 * qla82xx_mbx_completion() - Process mailbox command completions.
1970 * @ha: SCSI driver HA context
1971 * @mb0: Mailbox0 register
1972 */
1973 static void
1974 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1975 {
1976 uint16_t cnt;
1977 uint16_t __iomem *wptr;
1978 struct qla_hw_data *ha = vha->hw;
1979 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1980 wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
1981
1982 /* Load return mailbox registers. */
1983 ha->flags.mbox_int = 1;
1984 ha->mailbox_out[0] = mb0;
1985
1986 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1987 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1988 wptr++;
1989 }
1990
1991 if (ha->mcp) {
1992 DEBUG3_11(printk(KERN_INFO "%s(%ld): "
1993 "Got mailbox completion. cmd=%x.\n",
1994 __func__, vha->host_no, ha->mcp->mb[0]));
1995 } else {
1996 qla_printk(KERN_INFO, ha,
1997 "%s(%ld): MBX pointer ERROR!\n",
1998 __func__, vha->host_no);
1999 }
2000 }
2001
2002 /*
2003 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2004 * @irq:
2005 * @dev_id: SCSI driver HA context
2006 * @regs:
2007 *
2008 * Called by system whenever the host adapter generates an interrupt.
2009 *
2010 * Returns handled flag.
2011 */
2012 irqreturn_t
2013 qla82xx_intr_handler(int irq, void *dev_id)
2014 {
2015 scsi_qla_host_t *vha;
2016 struct qla_hw_data *ha;
2017 struct rsp_que *rsp;
2018 struct device_reg_82xx __iomem *reg;
2019 int status = 0, status1 = 0;
2020 unsigned long flags;
2021 unsigned long iter;
2022 uint32_t stat;
2023 uint16_t mb[4];
2024
2025 rsp = (struct rsp_que *) dev_id;
2026 if (!rsp) {
2027 printk(KERN_INFO
2028 "%s(): NULL response queue pointer\n", __func__);
2029 return IRQ_NONE;
2030 }
2031 ha = rsp->hw;
2032
2033 if (!ha->flags.msi_enabled) {
2034 status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2035 if (!(status & ha->nx_legacy_intr.int_vec_bit))
2036 return IRQ_NONE;
2037
2038 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2039 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2040 return IRQ_NONE;
2041 }
2042
2043 /* clear the interrupt */
2044 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2045
2046 /* read twice to ensure write is flushed */
2047 qla82xx_rd_32(ha, ISR_INT_VECTOR);
2048 qla82xx_rd_32(ha, ISR_INT_VECTOR);
2049
2050 reg = &ha->iobase->isp82;
2051
2052 spin_lock_irqsave(&ha->hardware_lock, flags);
2053 vha = pci_get_drvdata(ha->pdev);
2054 for (iter = 1; iter--; ) {
2055
2056 if (RD_REG_DWORD(&reg->host_int)) {
2057 stat = RD_REG_DWORD(&reg->host_status);
2058
2059 switch (stat & 0xff) {
2060 case 0x1:
2061 case 0x2:
2062 case 0x10:
2063 case 0x11:
2064 qla82xx_mbx_completion(vha, MSW(stat));
2065 status |= MBX_INTERRUPT;
2066 break;
2067 case 0x12:
2068 mb[0] = MSW(stat);
2069 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2070 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2071 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2072 qla2x00_async_event(vha, rsp, mb);
2073 break;
2074 case 0x13:
2075 qla24xx_process_response_queue(vha, rsp);
2076 break;
2077 default:
2078 DEBUG2(printk("scsi(%ld): "
2079 " Unrecognized interrupt type (%d).\n",
2080 vha->host_no, stat & 0xff));
2081 break;
2082 }
2083 }
2084 WRT_REG_DWORD(&reg->host_int, 0);
2085 }
2086 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2087 if (!ha->flags.msi_enabled)
2088 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2089
2090 #ifdef QL_DEBUG_LEVEL_17
2091 if (!irq && ha->flags.eeh_busy)
2092 qla_printk(KERN_WARNING, ha,
2093 "isr: status %x, cmd_flags %lx, mbox_int %x, stat %x\n",
2094 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2095 #endif
2096
2097 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2098 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2099 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2100 complete(&ha->mbx_intr_comp);
2101 }
2102 return IRQ_HANDLED;
2103 }
2104
2105 irqreturn_t
2106 qla82xx_msix_default(int irq, void *dev_id)
2107 {
2108 scsi_qla_host_t *vha;
2109 struct qla_hw_data *ha;
2110 struct rsp_que *rsp;
2111 struct device_reg_82xx __iomem *reg;
2112 int status = 0;
2113 unsigned long flags;
2114 uint32_t stat;
2115 uint16_t mb[4];
2116
2117 rsp = (struct rsp_que *) dev_id;
2118 if (!rsp) {
2119 printk(KERN_INFO
2120 "%s(): NULL response queue pointer\n", __func__);
2121 return IRQ_NONE;
2122 }
2123 ha = rsp->hw;
2124
2125 reg = &ha->iobase->isp82;
2126
2127 spin_lock_irqsave(&ha->hardware_lock, flags);
2128 vha = pci_get_drvdata(ha->pdev);
2129 do {
2130 if (RD_REG_DWORD(&reg->host_int)) {
2131 stat = RD_REG_DWORD(&reg->host_status);
2132
2133 switch (stat & 0xff) {
2134 case 0x1:
2135 case 0x2:
2136 case 0x10:
2137 case 0x11:
2138 qla82xx_mbx_completion(vha, MSW(stat));
2139 status |= MBX_INTERRUPT;
2140 break;
2141 case 0x12:
2142 mb[0] = MSW(stat);
2143 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2144 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2145 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2146 qla2x00_async_event(vha, rsp, mb);
2147 break;
2148 case 0x13:
2149 qla24xx_process_response_queue(vha, rsp);
2150 break;
2151 default:
2152 DEBUG2(printk("scsi(%ld): "
2153 " Unrecognized interrupt type (%d).\n",
2154 vha->host_no, stat & 0xff));
2155 break;
2156 }
2157 }
2158 WRT_REG_DWORD(&reg->host_int, 0);
2159 } while (0);
2160
2161 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2162
2163 #ifdef QL_DEBUG_LEVEL_17
2164 if (!irq && ha->flags.eeh_busy)
2165 qla_printk(KERN_WARNING, ha,
2166 "isr: status %x, cmd_flags %lx, mbox_int %x, stat %x\n",
2167 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2168 #endif
2169
2170 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2171 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2172 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2173 complete(&ha->mbx_intr_comp);
2174 }
2175 return IRQ_HANDLED;
2176 }
2177
2178 irqreturn_t
2179 qla82xx_msix_rsp_q(int irq, void *dev_id)
2180 {
2181 scsi_qla_host_t *vha;
2182 struct qla_hw_data *ha;
2183 struct rsp_que *rsp;
2184 struct device_reg_82xx __iomem *reg;
2185
2186 rsp = (struct rsp_que *) dev_id;
2187 if (!rsp) {
2188 printk(KERN_INFO
2189 "%s(): NULL response queue pointer\n", __func__);
2190 return IRQ_NONE;
2191 }
2192
2193 ha = rsp->hw;
2194 reg = &ha->iobase->isp82;
2195 spin_lock_irq(&ha->hardware_lock);
2196 vha = pci_get_drvdata(ha->pdev);
2197 qla24xx_process_response_queue(vha, rsp);
2198 WRT_REG_DWORD(&reg->host_int, 0);
2199 spin_unlock_irq(&ha->hardware_lock);
2200 return IRQ_HANDLED;
2201 }
2202
2203 void
2204 qla82xx_poll(int irq, void *dev_id)
2205 {
2206 scsi_qla_host_t *vha;
2207 struct qla_hw_data *ha;
2208 struct rsp_que *rsp;
2209 struct device_reg_82xx __iomem *reg;
2210 int status = 0;
2211 uint32_t stat;
2212 uint16_t mb[4];
2213 unsigned long flags;
2214
2215 rsp = (struct rsp_que *) dev_id;
2216 if (!rsp) {
2217 printk(KERN_INFO
2218 "%s(): NULL response queue pointer\n", __func__);
2219 return;
2220 }
2221 ha = rsp->hw;
2222
2223 reg = &ha->iobase->isp82;
2224 spin_lock_irqsave(&ha->hardware_lock, flags);
2225 vha = pci_get_drvdata(ha->pdev);
2226
2227 if (RD_REG_DWORD(&reg->host_int)) {
2228 stat = RD_REG_DWORD(&reg->host_status);
2229 switch (stat & 0xff) {
2230 case 0x1:
2231 case 0x2:
2232 case 0x10:
2233 case 0x11:
2234 qla82xx_mbx_completion(vha, MSW(stat));
2235 status |= MBX_INTERRUPT;
2236 break;
2237 case 0x12:
2238 mb[0] = MSW(stat);
2239 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2240 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2241 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2242 qla2x00_async_event(vha, rsp, mb);
2243 break;
2244 case 0x13:
2245 qla24xx_process_response_queue(vha, rsp);
2246 break;
2247 default:
2248 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2249 "(%d).\n",
2250 vha->host_no, stat & 0xff));
2251 break;
2252 }
2253 }
2254 WRT_REG_DWORD(&reg->host_int, 0);
2255 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2256 }
2257
2258 void
2259 qla82xx_enable_intrs(struct qla_hw_data *ha)
2260 {
2261 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2262 qla82xx_mbx_intr_enable(vha);
2263 spin_lock_irq(&ha->hardware_lock);
2264 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2265 spin_unlock_irq(&ha->hardware_lock);
2266 ha->interrupts_on = 1;
2267 }
2268
2269 void
2270 qla82xx_disable_intrs(struct qla_hw_data *ha)
2271 {
2272 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2273 qla82xx_mbx_intr_disable(vha);
2274 spin_lock_irq(&ha->hardware_lock);
2275 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2276 spin_unlock_irq(&ha->hardware_lock);
2277 ha->interrupts_on = 0;
2278 }
2279
2280 void qla82xx_init_flags(struct qla_hw_data *ha)
2281 {
2282 struct qla82xx_legacy_intr_set *nx_legacy_intr;
2283
2284 /* ISP 8021 initializations */
2285 rwlock_init(&ha->hw_lock);
2286 ha->qdr_sn_window = -1;
2287 ha->ddr_mn_window = -1;
2288 ha->curr_window = 255;
2289 ha->portnum = PCI_FUNC(ha->pdev->devfn);
2290 nx_legacy_intr = &legacy_intr[ha->portnum];
2291 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2292 ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2293 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2294 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2295 }
2296
2297 inline void
2298 qla82xx_set_drv_active(scsi_qla_host_t *vha)
2299 {
2300 uint32_t drv_active;
2301 struct qla_hw_data *ha = vha->hw;
2302
2303 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2304
2305 /* If reset value is all FF's, initialize DRV_ACTIVE */
2306 if (drv_active == 0xffffffff) {
2307 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2308 QLA82XX_DRV_NOT_ACTIVE);
2309 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2310 }
2311 drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2312 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2313 }
2314
2315 inline void
2316 qla82xx_clear_drv_active(struct qla_hw_data *ha)
2317 {
2318 uint32_t drv_active;
2319
2320 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2321 drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2322 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2323 }
2324
2325 static inline int
2326 qla82xx_need_reset(struct qla_hw_data *ha)
2327 {
2328 uint32_t drv_state;
2329 int rval;
2330
2331 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2332 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2333 return rval;
2334 }
2335
2336 static inline void
2337 qla82xx_set_rst_ready(struct qla_hw_data *ha)
2338 {
2339 uint32_t drv_state;
2340 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2341
2342 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2343
2344 /* If reset value is all FF's, initialize DRV_STATE */
2345 if (drv_state == 0xffffffff) {
2346 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2347 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2348 }
2349 drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2350 qla_printk(KERN_INFO, ha,
2351 "%s(%ld):drv_state = 0x%x\n",
2352 __func__, vha->host_no, drv_state);
2353 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2354 }
2355
2356 static inline void
2357 qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2358 {
2359 uint32_t drv_state;
2360
2361 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2362 drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2363 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2364 }
2365
2366 static inline void
2367 qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2368 {
2369 uint32_t qsnt_state;
2370
2371 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2372 qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2373 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2374 }
2375
2376 void
2377 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2378 {
2379 struct qla_hw_data *ha = vha->hw;
2380 uint32_t qsnt_state;
2381
2382 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2383 qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2384 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2385 }
2386
2387 static int
2388 qla82xx_load_fw(scsi_qla_host_t *vha)
2389 {
2390 int rst;
2391 struct fw_blob *blob;
2392 struct qla_hw_data *ha = vha->hw;
2393
2394 if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2395 qla_printk(KERN_ERR, ha,
2396 "%s: Error during CRB Initialization\n", __func__);
2397 return QLA_FUNCTION_FAILED;
2398 }
2399 udelay(500);
2400
2401 /* Bring QM and CAMRAM out of reset */
2402 rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2403 rst &= ~((1 << 28) | (1 << 24));
2404 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2405
2406 /*
2407 * FW Load priority:
2408 * 1) Operational firmware residing in flash.
2409 * 2) Firmware via request-firmware interface (.bin file).
2410 */
2411 if (ql2xfwloadbin == 2)
2412 goto try_blob_fw;
2413
2414 qla_printk(KERN_INFO, ha,
2415 "Attempting to load firmware from flash\n");
2416
2417 if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2418 qla_printk(KERN_ERR, ha,
2419 "Firmware loaded successfully from flash\n");
2420 return QLA_SUCCESS;
2421 } else {
2422 qla_printk(KERN_ERR, ha,
2423 "Firmware load from flash failed\n");
2424 }
2425
2426 try_blob_fw:
2427 qla_printk(KERN_INFO, ha,
2428 "Attempting to load firmware from blob\n");
2429
2430 /* Load firmware blob. */
2431 blob = ha->hablob = qla2x00_request_firmware(vha);
2432 if (!blob) {
2433 qla_printk(KERN_ERR, ha,
2434 "Firmware image not present.\n");
2435 goto fw_load_failed;
2436 }
2437
2438 /* Validating firmware blob */
2439 if (qla82xx_validate_firmware_blob(vha,
2440 QLA82XX_FLASH_ROMIMAGE)) {
2441 /* Fallback to URI format */
2442 if (qla82xx_validate_firmware_blob(vha,
2443 QLA82XX_UNIFIED_ROMIMAGE)) {
2444 qla_printk(KERN_ERR, ha,
2445 "No valid firmware image found!!!");
2446 return QLA_FUNCTION_FAILED;
2447 }
2448 }
2449
2450 if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2451 qla_printk(KERN_ERR, ha,
2452 "%s: Firmware loaded successfully "
2453 " from binary blob\n", __func__);
2454 return QLA_SUCCESS;
2455 } else {
2456 qla_printk(KERN_ERR, ha,
2457 "Firmware load failed from binary blob\n");
2458 blob->fw = NULL;
2459 blob = NULL;
2460 goto fw_load_failed;
2461 }
2462 return QLA_SUCCESS;
2463
2464 fw_load_failed:
2465 return QLA_FUNCTION_FAILED;
2466 }
2467
2468 int
2469 qla82xx_start_firmware(scsi_qla_host_t *vha)
2470 {
2471 int pcie_cap;
2472 uint16_t lnk;
2473 struct qla_hw_data *ha = vha->hw;
2474
2475 /* scrub dma mask expansion register */
2476 qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2477
2478 /* Put both the PEG CMD and RCV PEG to default state
2479 * of 0 before resetting the hardware
2480 */
2481 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2482 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2483
2484 /* Overwrite stale initialization register values */
2485 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2486 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2487
2488 if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2489 qla_printk(KERN_INFO, ha,
2490 "%s: Error trying to start fw!\n", __func__);
2491 return QLA_FUNCTION_FAILED;
2492 }
2493
2494 /* Handshake with the card before we register the devices. */
2495 if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2496 qla_printk(KERN_INFO, ha,
2497 "%s: Error during card handshake!\n", __func__);
2498 return QLA_FUNCTION_FAILED;
2499 }
2500
2501 /* Negotiated Link width */
2502 pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
2503 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
2504 ha->link_width = (lnk >> 4) & 0x3f;
2505
2506 /* Synchronize with Receive peg */
2507 return qla82xx_check_rcvpeg_state(ha);
2508 }
2509
2510 static inline int
2511 qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
2512 uint16_t tot_dsds)
2513 {
2514 uint32_t *cur_dsd = NULL;
2515 scsi_qla_host_t *vha;
2516 struct qla_hw_data *ha;
2517 struct scsi_cmnd *cmd;
2518 struct scatterlist *cur_seg;
2519 uint32_t *dsd_seg;
2520 void *next_dsd;
2521 uint8_t avail_dsds;
2522 uint8_t first_iocb = 1;
2523 uint32_t dsd_list_len;
2524 struct dsd_dma *dsd_ptr;
2525 struct ct6_dsd *ctx;
2526
2527 cmd = sp->cmd;
2528
2529 /* Update entry type to indicate Command Type 3 IOCB */
2530 *((uint32_t *)(&cmd_pkt->entry_type)) =
2531 __constant_cpu_to_le32(COMMAND_TYPE_6);
2532
2533 /* No data transfer */
2534 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
2535 cmd_pkt->byte_count = __constant_cpu_to_le32(0);
2536 return 0;
2537 }
2538
2539 vha = sp->fcport->vha;
2540 ha = vha->hw;
2541
2542 /* Set transfer direction */
2543 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
2544 cmd_pkt->control_flags =
2545 __constant_cpu_to_le16(CF_WRITE_DATA);
2546 ha->qla_stats.output_bytes += scsi_bufflen(cmd);
2547 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
2548 cmd_pkt->control_flags =
2549 __constant_cpu_to_le16(CF_READ_DATA);
2550 ha->qla_stats.input_bytes += scsi_bufflen(cmd);
2551 }
2552
2553 cur_seg = scsi_sglist(cmd);
2554 ctx = sp->ctx;
2555
2556 while (tot_dsds) {
2557 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
2558 QLA_DSDS_PER_IOCB : tot_dsds;
2559 tot_dsds -= avail_dsds;
2560 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
2561
2562 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
2563 struct dsd_dma, list);
2564 next_dsd = dsd_ptr->dsd_addr;
2565 list_del(&dsd_ptr->list);
2566 ha->gbl_dsd_avail--;
2567 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
2568 ctx->dsd_use_cnt++;
2569 ha->gbl_dsd_inuse++;
2570
2571 if (first_iocb) {
2572 first_iocb = 0;
2573 dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
2574 *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2575 *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
2576 *dsd_seg++ = cpu_to_le32(dsd_list_len);
2577 } else {
2578 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2579 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
2580 *cur_dsd++ = cpu_to_le32(dsd_list_len);
2581 }
2582 cur_dsd = (uint32_t *)next_dsd;
2583 while (avail_dsds) {
2584 dma_addr_t sle_dma;
2585
2586 sle_dma = sg_dma_address(cur_seg);
2587 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2588 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2589 *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
2590 cur_seg = sg_next(cur_seg);
2591 avail_dsds--;
2592 }
2593 }
2594
2595 /* Null termination */
2596 *cur_dsd++ = 0;
2597 *cur_dsd++ = 0;
2598 *cur_dsd++ = 0;
2599 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
2600 return 0;
2601 }
2602
2603 /*
2604 * qla82xx_calc_dsd_lists() - Determine number of DSD list required
2605 * for Command Type 6.
2606 *
2607 * @dsds: number of data segment decriptors needed
2608 *
2609 * Returns the number of dsd list needed to store @dsds.
2610 */
2611 inline uint16_t
2612 qla82xx_calc_dsd_lists(uint16_t dsds)
2613 {
2614 uint16_t dsd_lists = 0;
2615
2616 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
2617 if (dsds % QLA_DSDS_PER_IOCB)
2618 dsd_lists++;
2619 return dsd_lists;
2620 }
2621
2622 /*
2623 * qla82xx_start_scsi() - Send a SCSI command to the ISP
2624 * @sp: command to send to the ISP
2625 *
2626 * Returns non-zero if a failure occurred, else zero.
2627 */
2628 int
2629 qla82xx_start_scsi(srb_t *sp)
2630 {
2631 int ret, nseg;
2632 unsigned long flags;
2633 struct scsi_cmnd *cmd;
2634 uint32_t *clr_ptr;
2635 uint32_t index;
2636 uint32_t handle;
2637 uint16_t cnt;
2638 uint16_t req_cnt;
2639 uint16_t tot_dsds;
2640 struct device_reg_82xx __iomem *reg;
2641 uint32_t dbval;
2642 uint32_t *fcp_dl;
2643 uint8_t additional_cdb_len;
2644 struct ct6_dsd *ctx;
2645 struct scsi_qla_host *vha = sp->fcport->vha;
2646 struct qla_hw_data *ha = vha->hw;
2647 struct req_que *req = NULL;
2648 struct rsp_que *rsp = NULL;
2649 char tag[2];
2650
2651 /* Setup device pointers. */
2652 ret = 0;
2653 reg = &ha->iobase->isp82;
2654 cmd = sp->cmd;
2655 req = vha->req;
2656 rsp = ha->rsp_q_map[0];
2657
2658 /* So we know we haven't pci_map'ed anything yet */
2659 tot_dsds = 0;
2660
2661 dbval = 0x04 | (ha->portnum << 5);
2662
2663 /* Send marker if required */
2664 if (vha->marker_needed != 0) {
2665 if (qla2x00_marker(vha, req,
2666 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
2667 return QLA_FUNCTION_FAILED;
2668 vha->marker_needed = 0;
2669 }
2670
2671 /* Acquire ring specific lock */
2672 spin_lock_irqsave(&ha->hardware_lock, flags);
2673
2674 /* Check for room in outstanding command list. */
2675 handle = req->current_outstanding_cmd;
2676 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2677 handle++;
2678 if (handle == MAX_OUTSTANDING_COMMANDS)
2679 handle = 1;
2680 if (!req->outstanding_cmds[handle])
2681 break;
2682 }
2683 if (index == MAX_OUTSTANDING_COMMANDS)
2684 goto queuing_error;
2685
2686 /* Map the sg table so we have an accurate count of sg entries needed */
2687 if (scsi_sg_count(cmd)) {
2688 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2689 scsi_sg_count(cmd), cmd->sc_data_direction);
2690 if (unlikely(!nseg))
2691 goto queuing_error;
2692 } else
2693 nseg = 0;
2694
2695 tot_dsds = nseg;
2696
2697 if (tot_dsds > ql2xshiftctondsd) {
2698 struct cmd_type_6 *cmd_pkt;
2699 uint16_t more_dsd_lists = 0;
2700 struct dsd_dma *dsd_ptr;
2701 uint16_t i;
2702
2703 more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds);
2704 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN)
2705 goto queuing_error;
2706
2707 if (more_dsd_lists <= ha->gbl_dsd_avail)
2708 goto sufficient_dsds;
2709 else
2710 more_dsd_lists -= ha->gbl_dsd_avail;
2711
2712 for (i = 0; i < more_dsd_lists; i++) {
2713 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
2714 if (!dsd_ptr)
2715 goto queuing_error;
2716
2717 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
2718 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
2719 if (!dsd_ptr->dsd_addr) {
2720 kfree(dsd_ptr);
2721 goto queuing_error;
2722 }
2723 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
2724 ha->gbl_dsd_avail++;
2725 }
2726
2727 sufficient_dsds:
2728 req_cnt = 1;
2729
2730 if (req->cnt < (req_cnt + 2)) {
2731 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2732 &reg->req_q_out[0]);
2733 if (req->ring_index < cnt)
2734 req->cnt = cnt - req->ring_index;
2735 else
2736 req->cnt = req->length -
2737 (req->ring_index - cnt);
2738 }
2739
2740 if (req->cnt < (req_cnt + 2))
2741 goto queuing_error;
2742
2743 ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
2744 if (!sp->ctx) {
2745 DEBUG(printk(KERN_INFO
2746 "%s(%ld): failed to allocate"
2747 " ctx.\n", __func__, vha->host_no));
2748 goto queuing_error;
2749 }
2750 memset(ctx, 0, sizeof(struct ct6_dsd));
2751 ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
2752 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
2753 if (!ctx->fcp_cmnd) {
2754 DEBUG2_3(printk("%s(%ld): failed to allocate"
2755 " fcp_cmnd.\n", __func__, vha->host_no));
2756 goto queuing_error_fcp_cmnd;
2757 }
2758
2759 /* Initialize the DSD list and dma handle */
2760 INIT_LIST_HEAD(&ctx->dsd_list);
2761 ctx->dsd_use_cnt = 0;
2762
2763 if (cmd->cmd_len > 16) {
2764 additional_cdb_len = cmd->cmd_len - 16;
2765 if ((cmd->cmd_len % 4) != 0) {
2766 /* SCSI command bigger than 16 bytes must be
2767 * multiple of 4
2768 */
2769 goto queuing_error_fcp_cmnd;
2770 }
2771 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
2772 } else {
2773 additional_cdb_len = 0;
2774 ctx->fcp_cmnd_len = 12 + 16 + 4;
2775 }
2776
2777 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
2778 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2779
2780 /* Zero out remaining portion of packet. */
2781 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
2782 clr_ptr = (uint32_t *)cmd_pkt + 2;
2783 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2784 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2785
2786 /* Set NPORT-ID and LUN number*/
2787 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2788 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2789 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2790 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2791 cmd_pkt->vp_index = sp->fcport->vp_idx;
2792
2793 /* Build IOCB segments */
2794 if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
2795 goto queuing_error_fcp_cmnd;
2796
2797 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2798 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2799
2800 /*
2801 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2802 */
2803 if (scsi_populate_tag_msg(cmd, tag)) {
2804 switch (tag[0]) {
2805 case HEAD_OF_QUEUE_TAG:
2806 ctx->fcp_cmnd->task_attribute =
2807 TSK_HEAD_OF_QUEUE;
2808 break;
2809 case ORDERED_QUEUE_TAG:
2810 ctx->fcp_cmnd->task_attribute =
2811 TSK_ORDERED;
2812 break;
2813 }
2814 }
2815
2816 /* build FCP_CMND IU */
2817 memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
2818 int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
2819 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
2820
2821 if (cmd->sc_data_direction == DMA_TO_DEVICE)
2822 ctx->fcp_cmnd->additional_cdb_len |= 1;
2823 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
2824 ctx->fcp_cmnd->additional_cdb_len |= 2;
2825
2826 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
2827
2828 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
2829 additional_cdb_len);
2830 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
2831
2832 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
2833 cmd_pkt->fcp_cmnd_dseg_address[0] =
2834 cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
2835 cmd_pkt->fcp_cmnd_dseg_address[1] =
2836 cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
2837
2838 sp->flags |= SRB_FCP_CMND_DMA_VALID;
2839 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2840 /* Set total data segment count. */
2841 cmd_pkt->entry_count = (uint8_t)req_cnt;
2842 /* Specify response queue number where
2843 * completion should happen
2844 */
2845 cmd_pkt->entry_status = (uint8_t) rsp->id;
2846 } else {
2847 struct cmd_type_7 *cmd_pkt;
2848 req_cnt = qla24xx_calc_iocbs(tot_dsds);
2849 if (req->cnt < (req_cnt + 2)) {
2850 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2851 &reg->req_q_out[0]);
2852 if (req->ring_index < cnt)
2853 req->cnt = cnt - req->ring_index;
2854 else
2855 req->cnt = req->length -
2856 (req->ring_index - cnt);
2857 }
2858 if (req->cnt < (req_cnt + 2))
2859 goto queuing_error;
2860
2861 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
2862 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2863
2864 /* Zero out remaining portion of packet. */
2865 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
2866 clr_ptr = (uint32_t *)cmd_pkt + 2;
2867 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2868 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2869
2870 /* Set NPORT-ID and LUN number*/
2871 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2872 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2873 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2874 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2875 cmd_pkt->vp_index = sp->fcport->vp_idx;
2876
2877 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2878 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
2879 sizeof(cmd_pkt->lun));
2880
2881 /*
2882 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2883 */
2884 if (scsi_populate_tag_msg(cmd, tag)) {
2885 switch (tag[0]) {
2886 case HEAD_OF_QUEUE_TAG:
2887 cmd_pkt->task = TSK_HEAD_OF_QUEUE;
2888 break;
2889 case ORDERED_QUEUE_TAG:
2890 cmd_pkt->task = TSK_ORDERED;
2891 break;
2892 }
2893 }
2894
2895 /* Load SCSI command packet. */
2896 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2897 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2898
2899 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2900
2901 /* Build IOCB segments */
2902 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
2903
2904 /* Set total data segment count. */
2905 cmd_pkt->entry_count = (uint8_t)req_cnt;
2906 /* Specify response queue number where
2907 * completion should happen.
2908 */
2909 cmd_pkt->entry_status = (uint8_t) rsp->id;
2910
2911 }
2912 /* Build command packet. */
2913 req->current_outstanding_cmd = handle;
2914 req->outstanding_cmds[handle] = sp;
2915 sp->handle = handle;
2916 sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2917 req->cnt -= req_cnt;
2918 wmb();
2919
2920 /* Adjust ring index. */
2921 req->ring_index++;
2922 if (req->ring_index == req->length) {
2923 req->ring_index = 0;
2924 req->ring_ptr = req->ring;
2925 } else
2926 req->ring_ptr++;
2927
2928 sp->flags |= SRB_DMA_VALID;
2929
2930 /* Set chip new ring index. */
2931 /* write, read and verify logic */
2932 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2933 if (ql2xdbwr)
2934 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2935 else {
2936 WRT_REG_DWORD(
2937 (unsigned long __iomem *)ha->nxdb_wr_ptr,
2938 dbval);
2939 wmb();
2940 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2941 WRT_REG_DWORD(
2942 (unsigned long __iomem *)ha->nxdb_wr_ptr,
2943 dbval);
2944 wmb();
2945 }
2946 }
2947
2948 /* Manage unprocessed RIO/ZIO commands in response queue. */
2949 if (vha->flags.process_response_queue &&
2950 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2951 qla24xx_process_response_queue(vha, rsp);
2952
2953 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2954 return QLA_SUCCESS;
2955
2956 queuing_error_fcp_cmnd:
2957 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
2958 queuing_error:
2959 if (tot_dsds)
2960 scsi_dma_unmap(cmd);
2961
2962 if (sp->ctx) {
2963 mempool_free(sp->ctx, ha->ctx_mempool);
2964 sp->ctx = NULL;
2965 }
2966 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2967
2968 return QLA_FUNCTION_FAILED;
2969 }
2970
2971 static uint32_t *
2972 qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2973 uint32_t length)
2974 {
2975 uint32_t i;
2976 uint32_t val;
2977 struct qla_hw_data *ha = vha->hw;
2978
2979 /* Dword reads to flash. */
2980 for (i = 0; i < length/4; i++, faddr += 4) {
2981 if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2982 qla_printk(KERN_WARNING, ha,
2983 "Do ROM fast read failed\n");
2984 goto done_read;
2985 }
2986 dwptr[i] = __constant_cpu_to_le32(val);
2987 }
2988 done_read:
2989 return dwptr;
2990 }
2991
2992 static int
2993 qla82xx_unprotect_flash(struct qla_hw_data *ha)
2994 {
2995 int ret;
2996 uint32_t val;
2997
2998 ret = ql82xx_rom_lock_d(ha);
2999 if (ret < 0) {
3000 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
3001 return ret;
3002 }
3003
3004 ret = qla82xx_read_status_reg(ha, &val);
3005 if (ret < 0)
3006 goto done_unprotect;
3007
3008 val &= ~(BLOCK_PROTECT_BITS << 2);
3009 ret = qla82xx_write_status_reg(ha, val);
3010 if (ret < 0) {
3011 val |= (BLOCK_PROTECT_BITS << 2);
3012 qla82xx_write_status_reg(ha, val);
3013 }
3014
3015 if (qla82xx_write_disable_flash(ha) != 0)
3016 qla_printk(KERN_WARNING, ha, "Write disable failed\n");
3017
3018 done_unprotect:
3019 qla82xx_rom_unlock(ha);
3020 return ret;
3021 }
3022
3023 static int
3024 qla82xx_protect_flash(struct qla_hw_data *ha)
3025 {
3026 int ret;
3027 uint32_t val;
3028
3029 ret = ql82xx_rom_lock_d(ha);
3030 if (ret < 0) {
3031 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
3032 return ret;
3033 }
3034
3035 ret = qla82xx_read_status_reg(ha, &val);
3036 if (ret < 0)
3037 goto done_protect;
3038
3039 val |= (BLOCK_PROTECT_BITS << 2);
3040 /* LOCK all sectors */
3041 ret = qla82xx_write_status_reg(ha, val);
3042 if (ret < 0)
3043 qla_printk(KERN_WARNING, ha, "Write status register failed\n");
3044
3045 if (qla82xx_write_disable_flash(ha) != 0)
3046 qla_printk(KERN_WARNING, ha, "Write disable failed\n");
3047 done_protect:
3048 qla82xx_rom_unlock(ha);
3049 return ret;
3050 }
3051
3052 static int
3053 qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
3054 {
3055 int ret = 0;
3056
3057 ret = ql82xx_rom_lock_d(ha);
3058 if (ret < 0) {
3059 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
3060 return ret;
3061 }
3062
3063 qla82xx_flash_set_write_enable(ha);
3064 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
3065 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
3066 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
3067
3068 if (qla82xx_wait_rom_done(ha)) {
3069 qla_printk(KERN_WARNING, ha,
3070 "Error waiting for rom done\n");
3071 ret = -1;
3072 goto done;
3073 }
3074 ret = qla82xx_flash_wait_write_finish(ha);
3075 done:
3076 qla82xx_rom_unlock(ha);
3077 return ret;
3078 }
3079
3080 /*
3081 * Address and length are byte address
3082 */
3083 uint8_t *
3084 qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3085 uint32_t offset, uint32_t length)
3086 {
3087 scsi_block_requests(vha->host);
3088 qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
3089 scsi_unblock_requests(vha->host);
3090 return buf;
3091 }
3092
3093 static int
3094 qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
3095 uint32_t faddr, uint32_t dwords)
3096 {
3097 int ret;
3098 uint32_t liter;
3099 uint32_t sec_mask, rest_addr;
3100 dma_addr_t optrom_dma;
3101 void *optrom = NULL;
3102 int page_mode = 0;
3103 struct qla_hw_data *ha = vha->hw;
3104
3105 ret = -1;
3106
3107 /* Prepare burst-capable write on supported ISPs. */
3108 if (page_mode && !(faddr & 0xfff) &&
3109 dwords > OPTROM_BURST_DWORDS) {
3110 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
3111 &optrom_dma, GFP_KERNEL);
3112 if (!optrom) {
3113 qla_printk(KERN_DEBUG, ha,
3114 "Unable to allocate memory for optrom "
3115 "burst write (%x KB).\n",
3116 OPTROM_BURST_SIZE / 1024);
3117 }
3118 }
3119
3120 rest_addr = ha->fdt_block_size - 1;
3121 sec_mask = ~rest_addr;
3122
3123 ret = qla82xx_unprotect_flash(ha);
3124 if (ret) {
3125 qla_printk(KERN_WARNING, ha,
3126 "Unable to unprotect flash for update.\n");
3127 goto write_done;
3128 }
3129
3130 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3131 /* Are we at the beginning of a sector? */
3132 if ((faddr & rest_addr) == 0) {
3133
3134 ret = qla82xx_erase_sector(ha, faddr);
3135 if (ret) {
3136 DEBUG9(qla_printk(KERN_ERR, ha,
3137 "Unable to erase sector: "
3138 "address=%x.\n", faddr));
3139 break;
3140 }
3141 }
3142
3143 /* Go with burst-write. */
3144 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
3145 /* Copy data to DMA'ble buffer. */
3146 memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
3147
3148 ret = qla2x00_load_ram(vha, optrom_dma,
3149 (ha->flash_data_off | faddr),
3150 OPTROM_BURST_DWORDS);
3151 if (ret != QLA_SUCCESS) {
3152 qla_printk(KERN_WARNING, ha,
3153 "Unable to burst-write optrom segment "
3154 "(%x/%x/%llx).\n", ret,
3155 (ha->flash_data_off | faddr),
3156 (unsigned long long)optrom_dma);
3157 qla_printk(KERN_WARNING, ha,
3158 "Reverting to slow-write.\n");
3159
3160 dma_free_coherent(&ha->pdev->dev,
3161 OPTROM_BURST_SIZE, optrom, optrom_dma);
3162 optrom = NULL;
3163 } else {
3164 liter += OPTROM_BURST_DWORDS - 1;
3165 faddr += OPTROM_BURST_DWORDS - 1;
3166 dwptr += OPTROM_BURST_DWORDS - 1;
3167 continue;
3168 }
3169 }
3170
3171 ret = qla82xx_write_flash_dword(ha, faddr,
3172 cpu_to_le32(*dwptr));
3173 if (ret) {
3174 DEBUG9(printk(KERN_DEBUG "%s(%ld) Unable to program"
3175 "flash address=%x data=%x.\n", __func__,
3176 ha->host_no, faddr, *dwptr));
3177 break;
3178 }
3179 }
3180
3181 ret = qla82xx_protect_flash(ha);
3182 if (ret)
3183 qla_printk(KERN_WARNING, ha,
3184 "Unable to protect flash after update.\n");
3185 write_done:
3186 if (optrom)
3187 dma_free_coherent(&ha->pdev->dev,
3188 OPTROM_BURST_SIZE, optrom, optrom_dma);
3189 return ret;
3190 }
3191
3192 int
3193 qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3194 uint32_t offset, uint32_t length)
3195 {
3196 int rval;
3197
3198 /* Suspend HBA. */
3199 scsi_block_requests(vha->host);
3200 rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
3201 length >> 2);
3202 scsi_unblock_requests(vha->host);
3203
3204 /* Convert return ISP82xx to generic */
3205 if (rval)
3206 rval = QLA_FUNCTION_FAILED;
3207 else
3208 rval = QLA_SUCCESS;
3209 return rval;
3210 }
3211
3212 void
3213 qla82xx_start_iocbs(srb_t *sp)
3214 {
3215 struct qla_hw_data *ha = sp->fcport->vha->hw;
3216 struct req_que *req = ha->req_q_map[0];
3217 struct device_reg_82xx __iomem *reg;
3218 uint32_t dbval;
3219
3220 /* Adjust ring index. */
3221 req->ring_index++;
3222 if (req->ring_index == req->length) {
3223 req->ring_index = 0;
3224 req->ring_ptr = req->ring;
3225 } else
3226 req->ring_ptr++;
3227
3228 reg = &ha->iobase->isp82;
3229 dbval = 0x04 | (ha->portnum << 5);
3230
3231 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3232 if (ql2xdbwr)
3233 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
3234 else {
3235 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
3236 wmb();
3237 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
3238 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr,
3239 dbval);
3240 wmb();
3241 }
3242 }
3243 }
3244
3245 void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
3246 {
3247 if (qla82xx_rom_lock(ha))
3248 /* Someone else is holding the lock. */
3249 qla_printk(KERN_INFO, ha, "Resetting rom_lock\n");
3250
3251 /*
3252 * Either we got the lock, or someone
3253 * else died while holding it.
3254 * In either case, unlock.
3255 */
3256 qla82xx_rom_unlock(ha);
3257 }
3258
3259 /*
3260 * qla82xx_device_bootstrap
3261 * Initialize device, set DEV_READY, start fw
3262 *
3263 * Note:
3264 * IDC lock must be held upon entry
3265 *
3266 * Return:
3267 * Success : 0
3268 * Failed : 1
3269 */
3270 static int
3271 qla82xx_device_bootstrap(scsi_qla_host_t *vha)
3272 {
3273 int rval = QLA_SUCCESS;
3274 int i, timeout;
3275 uint32_t old_count, count;
3276 struct qla_hw_data *ha = vha->hw;
3277 int need_reset = 0, peg_stuck = 1;
3278
3279 need_reset = qla82xx_need_reset(ha);
3280
3281 old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3282
3283 for (i = 0; i < 10; i++) {
3284 timeout = msleep_interruptible(200);
3285 if (timeout) {
3286 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3287 QLA82XX_DEV_FAILED);
3288 return QLA_FUNCTION_FAILED;
3289 }
3290
3291 count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3292 if (count != old_count)
3293 peg_stuck = 0;
3294 }
3295
3296 if (need_reset) {
3297 /* We are trying to perform a recovery here. */
3298 if (peg_stuck)
3299 qla82xx_rom_lock_recovery(ha);
3300 goto dev_initialize;
3301 } else {
3302 /* Start of day for this ha context. */
3303 if (peg_stuck) {
3304 /* Either we are the first or recovery in progress. */
3305 qla82xx_rom_lock_recovery(ha);
3306 goto dev_initialize;
3307 } else
3308 /* Firmware already running. */
3309 goto dev_ready;
3310 }
3311
3312 return rval;
3313
3314 dev_initialize:
3315 /* set to DEV_INITIALIZING */
3316 qla_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
3317 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
3318
3319 /* Driver that sets device state to initializating sets IDC version */
3320 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
3321
3322 qla82xx_idc_unlock(ha);
3323 rval = qla82xx_start_firmware(vha);
3324 qla82xx_idc_lock(ha);
3325
3326 if (rval != QLA_SUCCESS) {
3327 qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
3328 qla82xx_clear_drv_active(ha);
3329 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
3330 return rval;
3331 }
3332
3333 dev_ready:
3334 qla_printk(KERN_INFO, ha, "HW State: READY\n");
3335 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
3336
3337 return QLA_SUCCESS;
3338 }
3339
3340 /*
3341 * qla82xx_need_qsnt_handler
3342 * Code to start quiescence sequence
3343 *
3344 * Note:
3345 * IDC lock must be held upon entry
3346 *
3347 * Return: void
3348 */
3349
3350 static void
3351 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
3352 {
3353 struct qla_hw_data *ha = vha->hw;
3354 uint32_t dev_state, drv_state, drv_active;
3355 unsigned long reset_timeout;
3356
3357 if (vha->flags.online) {
3358 /*Block any further I/O and wait for pending cmnds to complete*/
3359 qla82xx_quiescent_state_cleanup(vha);
3360 }
3361
3362 /* Set the quiescence ready bit */
3363 qla82xx_set_qsnt_ready(ha);
3364
3365 /*wait for 30 secs for other functions to ack */
3366 reset_timeout = jiffies + (30 * HZ);
3367
3368 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3369 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3370 /* Its 2 that is written when qsnt is acked, moving one bit */
3371 drv_active = drv_active << 0x01;
3372
3373 while (drv_state != drv_active) {
3374
3375 if (time_after_eq(jiffies, reset_timeout)) {
3376 /* quiescence timeout, other functions didn't ack
3377 * changing the state to DEV_READY
3378 */
3379 qla_printk(KERN_INFO, ha,
3380 "%s: QUIESCENT TIMEOUT\n", QLA2XXX_DRIVER_NAME);
3381 qla_printk(KERN_INFO, ha,
3382 "DRV_ACTIVE:%d DRV_STATE:%d\n", drv_active,
3383 drv_state);
3384 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3385 QLA82XX_DEV_READY);
3386 qla_printk(KERN_INFO, ha,
3387 "HW State: DEV_READY\n");
3388 qla82xx_idc_unlock(ha);
3389 qla2x00_perform_loop_resync(vha);
3390 qla82xx_idc_lock(ha);
3391
3392 qla82xx_clear_qsnt_ready(vha);
3393 return;
3394 }
3395
3396 qla82xx_idc_unlock(ha);
3397 msleep(1000);
3398 qla82xx_idc_lock(ha);
3399
3400 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3401 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3402 drv_active = drv_active << 0x01;
3403 }
3404 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3405 /* everyone acked so set the state to DEV_QUIESCENCE */
3406 if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
3407 qla_printk(KERN_INFO, ha, "HW State: DEV_QUIESCENT\n");
3408 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
3409 }
3410 }
3411
3412 /*
3413 * qla82xx_wait_for_state_change
3414 * Wait for device state to change from given current state
3415 *
3416 * Note:
3417 * IDC lock must not be held upon entry
3418 *
3419 * Return:
3420 * Changed device state.
3421 */
3422 uint32_t
3423 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
3424 {
3425 struct qla_hw_data *ha = vha->hw;
3426 uint32_t dev_state;
3427
3428 do {
3429 msleep(1000);
3430 qla82xx_idc_lock(ha);
3431 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3432 qla82xx_idc_unlock(ha);
3433 } while (dev_state == curr_state);
3434
3435 return dev_state;
3436 }
3437
3438 static void
3439 qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
3440 {
3441 struct qla_hw_data *ha = vha->hw;
3442
3443 /* Disable the board */
3444 qla_printk(KERN_INFO, ha, "Disabling the board\n");
3445
3446 qla82xx_idc_lock(ha);
3447 qla82xx_clear_drv_active(ha);
3448 qla82xx_idc_unlock(ha);
3449
3450 /* Set DEV_FAILED flag to disable timer */
3451 vha->device_flags |= DFLG_DEV_FAILED;
3452 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3453 qla2x00_mark_all_devices_lost(vha, 0);
3454 vha->flags.online = 0;
3455 vha->flags.init_done = 0;
3456 }
3457
3458 /*
3459 * qla82xx_need_reset_handler
3460 * Code to start reset sequence
3461 *
3462 * Note:
3463 * IDC lock must be held upon entry
3464 *
3465 * Return:
3466 * Success : 0
3467 * Failed : 1
3468 */
3469 static void
3470 qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3471 {
3472 uint32_t dev_state, drv_state, drv_active;
3473 unsigned long reset_timeout;
3474 struct qla_hw_data *ha = vha->hw;
3475 struct req_que *req = ha->req_q_map[0];
3476
3477 if (vha->flags.online) {
3478 qla82xx_idc_unlock(ha);
3479 qla2x00_abort_isp_cleanup(vha);
3480 ha->isp_ops->get_flash_version(vha, req->ring);
3481 ha->isp_ops->nvram_config(vha);
3482 qla82xx_idc_lock(ha);
3483 }
3484
3485 qla82xx_set_rst_ready(ha);
3486
3487 /* wait for 10 seconds for reset ack from all functions */
3488 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3489
3490 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3491 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3492
3493 while (drv_state != drv_active) {
3494 if (time_after_eq(jiffies, reset_timeout)) {
3495 qla_printk(KERN_INFO, ha,
3496 "%s: RESET TIMEOUT!\n", QLA2XXX_DRIVER_NAME);
3497 break;
3498 }
3499 qla82xx_idc_unlock(ha);
3500 msleep(1000);
3501 qla82xx_idc_lock(ha);
3502 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3503 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3504 }
3505
3506 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3507 qla_printk(KERN_INFO, ha, "3:Device state is 0x%x = %s\n", dev_state,
3508 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
3509
3510 /* Force to DEV_COLD unless someone else is starting a reset */
3511 if (dev_state != QLA82XX_DEV_INITIALIZING) {
3512 qla_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
3513 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
3514 }
3515 }
3516
3517 int
3518 qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3519 {
3520 uint32_t fw_heartbeat_counter;
3521 int status = 0;
3522
3523 fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3524 QLA82XX_PEG_ALIVE_COUNTER);
3525 /* all 0xff, assume AER/EEH in progress, ignore */
3526 if (fw_heartbeat_counter == 0xffffffff)
3527 return status;
3528 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3529 vha->seconds_since_last_heartbeat++;
3530 /* FW not alive after 2 seconds */
3531 if (vha->seconds_since_last_heartbeat == 2) {
3532 vha->seconds_since_last_heartbeat = 0;
3533 status = 1;
3534 }
3535 } else
3536 vha->seconds_since_last_heartbeat = 0;
3537 vha->fw_heartbeat_counter = fw_heartbeat_counter;
3538 return status;
3539 }
3540
3541 /*
3542 * qla82xx_device_state_handler
3543 * Main state handler
3544 *
3545 * Note:
3546 * IDC lock must be held upon entry
3547 *
3548 * Return:
3549 * Success : 0
3550 * Failed : 1
3551 */
3552 int
3553 qla82xx_device_state_handler(scsi_qla_host_t *vha)
3554 {
3555 uint32_t dev_state;
3556 uint32_t old_dev_state;
3557 int rval = QLA_SUCCESS;
3558 unsigned long dev_init_timeout;
3559 struct qla_hw_data *ha = vha->hw;
3560 int loopcount = 0;
3561
3562 qla82xx_idc_lock(ha);
3563 if (!vha->flags.init_done)
3564 qla82xx_set_drv_active(vha);
3565
3566 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3567 old_dev_state = dev_state;
3568 qla_printk(KERN_INFO, ha, "1:Device state is 0x%x = %s\n", dev_state,
3569 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
3570
3571 /* wait for 30 seconds for device to go ready */
3572 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3573
3574 while (1) {
3575
3576 if (time_after_eq(jiffies, dev_init_timeout)) {
3577 DEBUG(qla_printk(KERN_INFO, ha,
3578 "%s: device init failed!\n",
3579 QLA2XXX_DRIVER_NAME));
3580 rval = QLA_FUNCTION_FAILED;
3581 break;
3582 }
3583 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3584 if (old_dev_state != dev_state) {
3585 loopcount = 0;
3586 old_dev_state = dev_state;
3587 }
3588 if (loopcount < 5) {
3589 qla_printk(KERN_INFO, ha,
3590 "2:Device state is 0x%x = %s\n", dev_state,
3591 dev_state < MAX_STATES ?
3592 qdev_state[dev_state] : "Unknown");
3593 }
3594
3595 switch (dev_state) {
3596 case QLA82XX_DEV_READY:
3597 goto exit;
3598 case QLA82XX_DEV_COLD:
3599 rval = qla82xx_device_bootstrap(vha);
3600 goto exit;
3601 case QLA82XX_DEV_INITIALIZING:
3602 qla82xx_idc_unlock(ha);
3603 msleep(1000);
3604 qla82xx_idc_lock(ha);
3605 break;
3606 case QLA82XX_DEV_NEED_RESET:
3607 if (!ql2xdontresethba)
3608 qla82xx_need_reset_handler(vha);
3609 dev_init_timeout = jiffies +
3610 (ha->nx_dev_init_timeout * HZ);
3611 break;
3612 case QLA82XX_DEV_NEED_QUIESCENT:
3613 qla82xx_need_qsnt_handler(vha);
3614 /* Reset timeout value after quiescence handler */
3615 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3616 * HZ);
3617 break;
3618 case QLA82XX_DEV_QUIESCENT:
3619 /* Owner will exit and other will wait for the state
3620 * to get changed
3621 */
3622 if (ha->flags.quiesce_owner)
3623 goto exit;
3624
3625 qla82xx_idc_unlock(ha);
3626 msleep(1000);
3627 qla82xx_idc_lock(ha);
3628
3629 /* Reset timeout value after quiescence handler */
3630 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3631 * HZ);
3632 break;
3633 case QLA82XX_DEV_FAILED:
3634 qla82xx_dev_failed_handler(vha);
3635 rval = QLA_FUNCTION_FAILED;
3636 goto exit;
3637 default:
3638 qla82xx_idc_unlock(ha);
3639 msleep(1000);
3640 qla82xx_idc_lock(ha);
3641 }
3642 loopcount++;
3643 }
3644 exit:
3645 qla82xx_idc_unlock(ha);
3646 return rval;
3647 }
3648
3649 void qla82xx_watchdog(scsi_qla_host_t *vha)
3650 {
3651 uint32_t dev_state, halt_status;
3652 struct qla_hw_data *ha = vha->hw;
3653
3654 /* don't poll if reset is going on */
3655 if (!ha->flags.isp82xx_reset_hdlr_active) {
3656 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3657 if (dev_state == QLA82XX_DEV_NEED_RESET &&
3658 !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3659 qla_printk(KERN_WARNING, ha,
3660 "scsi(%ld) %s: Adapter reset needed!\n",
3661 vha->host_no, __func__);
3662 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3663 qla2xxx_wake_dpc(vha);
3664 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
3665 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3666 DEBUG(qla_printk(KERN_INFO, ha,
3667 "scsi(%ld) %s - detected quiescence needed\n",
3668 vha->host_no, __func__));
3669 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3670 qla2xxx_wake_dpc(vha);
3671 } else {
3672 if (qla82xx_check_fw_alive(vha)) {
3673 halt_status = qla82xx_rd_32(ha,
3674 QLA82XX_PEG_HALT_STATUS1);
3675 qla_printk(KERN_INFO, ha,
3676 "scsi(%ld): %s, Dumping hw/fw registers:\n "
3677 " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n "
3678 " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n "
3679 " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n "
3680 " PEG_NET_4_PC: 0x%x\n",
3681 vha->host_no, __func__, halt_status,
3682 qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3683 qla82xx_rd_32(ha,
3684 QLA82XX_CRB_PEG_NET_0 + 0x3c),
3685 qla82xx_rd_32(ha,
3686 QLA82XX_CRB_PEG_NET_1 + 0x3c),
3687 qla82xx_rd_32(ha,
3688 QLA82XX_CRB_PEG_NET_2 + 0x3c),
3689 qla82xx_rd_32(ha,
3690 QLA82XX_CRB_PEG_NET_3 + 0x3c),
3691 qla82xx_rd_32(ha,
3692 QLA82XX_CRB_PEG_NET_4 + 0x3c));
3693 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3694 set_bit(ISP_UNRECOVERABLE,
3695 &vha->dpc_flags);
3696 } else {
3697 qla_printk(KERN_INFO, ha,
3698 "scsi(%ld): %s - detect abort needed\n",
3699 vha->host_no, __func__);
3700 set_bit(ISP_ABORT_NEEDED,
3701 &vha->dpc_flags);
3702 }
3703 qla2xxx_wake_dpc(vha);
3704 ha->flags.isp82xx_fw_hung = 1;
3705 if (ha->flags.mbox_busy) {
3706 ha->flags.mbox_int = 1;
3707 DEBUG2(qla_printk(KERN_ERR, ha,
3708 "scsi(%ld) Due to fw hung, doing "
3709 "premature completion of mbx "
3710 "command\n", vha->host_no));
3711 if (test_bit(MBX_INTR_WAIT,
3712 &ha->mbx_cmd_flags))
3713 complete(&ha->mbx_intr_comp);
3714 }
3715 }
3716 }
3717 }
3718 }
3719
3720 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3721 {
3722 int rval;
3723 rval = qla82xx_device_state_handler(vha);
3724 return rval;
3725 }
3726
3727 /*
3728 * qla82xx_abort_isp
3729 * Resets ISP and aborts all outstanding commands.
3730 *
3731 * Input:
3732 * ha = adapter block pointer.
3733 *
3734 * Returns:
3735 * 0 = success
3736 */
3737 int
3738 qla82xx_abort_isp(scsi_qla_host_t *vha)
3739 {
3740 int rval;
3741 struct qla_hw_data *ha = vha->hw;
3742 uint32_t dev_state;
3743
3744 if (vha->device_flags & DFLG_DEV_FAILED) {
3745 qla_printk(KERN_WARNING, ha,
3746 "%s(%ld): Device in failed state, "
3747 "Exiting.\n", __func__, vha->host_no);
3748 return QLA_SUCCESS;
3749 }
3750 ha->flags.isp82xx_reset_hdlr_active = 1;
3751
3752 qla82xx_idc_lock(ha);
3753 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3754 if (dev_state == QLA82XX_DEV_READY) {
3755 qla_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
3756 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3757 QLA82XX_DEV_NEED_RESET);
3758 } else
3759 qla_printk(KERN_INFO, ha, "HW State: %s\n",
3760 dev_state < MAX_STATES ?
3761 qdev_state[dev_state] : "Unknown");
3762 qla82xx_idc_unlock(ha);
3763
3764 rval = qla82xx_device_state_handler(vha);
3765
3766 qla82xx_idc_lock(ha);
3767 qla82xx_clear_rst_ready(ha);
3768 qla82xx_idc_unlock(ha);
3769
3770 if (rval == QLA_SUCCESS) {
3771 ha->flags.isp82xx_fw_hung = 0;
3772 ha->flags.isp82xx_reset_hdlr_active = 0;
3773 qla82xx_restart_isp(vha);
3774 }
3775
3776 if (rval) {
3777 vha->flags.online = 1;
3778 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3779 if (ha->isp_abort_cnt == 0) {
3780 qla_printk(KERN_WARNING, ha,
3781 "ISP error recovery failed - "
3782 "board disabled\n");
3783 /*
3784 * The next call disables the board
3785 * completely.
3786 */
3787 ha->isp_ops->reset_adapter(vha);
3788 vha->flags.online = 0;
3789 clear_bit(ISP_ABORT_RETRY,
3790 &vha->dpc_flags);
3791 rval = QLA_SUCCESS;
3792 } else { /* schedule another ISP abort */
3793 ha->isp_abort_cnt--;
3794 DEBUG(qla_printk(KERN_INFO, ha,
3795 "qla%ld: ISP abort - retry remaining %d\n",
3796 vha->host_no, ha->isp_abort_cnt));
3797 rval = QLA_FUNCTION_FAILED;
3798 }
3799 } else {
3800 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3801 DEBUG(qla_printk(KERN_INFO, ha,
3802 "(%ld): ISP error recovery - retrying (%d) "
3803 "more times\n", vha->host_no, ha->isp_abort_cnt));
3804 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3805 rval = QLA_FUNCTION_FAILED;
3806 }
3807 }
3808 return rval;
3809 }
3810
3811 /*
3812 * qla82xx_fcoe_ctx_reset
3813 * Perform a quick reset and aborts all outstanding commands.
3814 * This will only perform an FCoE context reset and avoids a full blown
3815 * chip reset.
3816 *
3817 * Input:
3818 * ha = adapter block pointer.
3819 * is_reset_path = flag for identifying the reset path.
3820 *
3821 * Returns:
3822 * 0 = success
3823 */
3824 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3825 {
3826 int rval = QLA_FUNCTION_FAILED;
3827
3828 if (vha->flags.online) {
3829 /* Abort all outstanding commands, so as to be requeued later */
3830 qla2x00_abort_isp_cleanup(vha);
3831 }
3832
3833 /* Stop currently executing firmware.
3834 * This will destroy existing FCoE context at the F/W end.
3835 */
3836 qla2x00_try_to_stop_firmware(vha);
3837
3838 /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3839 rval = qla82xx_restart_isp(vha);
3840
3841 return rval;
3842 }
3843
3844 /*
3845 * qla2x00_wait_for_fcoe_ctx_reset
3846 * Wait till the FCoE context is reset.
3847 *
3848 * Note:
3849 * Does context switching here.
3850 * Release SPIN_LOCK (if any) before calling this routine.
3851 *
3852 * Return:
3853 * Success (fcoe_ctx reset is done) : 0
3854 * Failed (fcoe_ctx reset not completed within max loop timout ) : 1
3855 */
3856 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3857 {
3858 int status = QLA_FUNCTION_FAILED;
3859 unsigned long wait_reset;
3860
3861 wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3862 while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3863 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3864 && time_before(jiffies, wait_reset)) {
3865
3866 set_current_state(TASK_UNINTERRUPTIBLE);
3867 schedule_timeout(HZ);
3868
3869 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3870 !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3871 status = QLA_SUCCESS;
3872 break;
3873 }
3874 }
3875 DEBUG2(printk(KERN_INFO
3876 "%s status=%d\n", __func__, status));
3877
3878 return status;
3879 }
3880
3881 void
3882 qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3883 {
3884 int i;
3885 unsigned long flags;
3886 struct qla_hw_data *ha = vha->hw;
3887
3888 /* Check if 82XX firmware is alive or not
3889 * We may have arrived here from NEED_RESET
3890 * detection only
3891 */
3892 if (!ha->flags.isp82xx_fw_hung) {
3893 for (i = 0; i < 2; i++) {
3894 msleep(1000);
3895 if (qla82xx_check_fw_alive(vha)) {
3896 ha->flags.isp82xx_fw_hung = 1;
3897 if (ha->flags.mbox_busy) {
3898 ha->flags.mbox_int = 1;
3899 complete(&ha->mbx_intr_comp);
3900 }
3901 break;
3902 }
3903 }
3904 }
3905
3906 /* Abort all commands gracefully if fw NOT hung */
3907 if (!ha->flags.isp82xx_fw_hung) {
3908 int cnt, que;
3909 srb_t *sp;
3910 struct req_que *req;
3911
3912 spin_lock_irqsave(&ha->hardware_lock, flags);
3913 for (que = 0; que < ha->max_req_queues; que++) {
3914 req = ha->req_q_map[que];
3915 if (!req)
3916 continue;
3917 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3918 sp = req->outstanding_cmds[cnt];
3919 if (sp) {
3920 if (!sp->ctx ||
3921 (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3922 spin_unlock_irqrestore(
3923 &ha->hardware_lock, flags);
3924 if (ha->isp_ops->abort_command(sp)) {
3925 qla_printk(KERN_INFO, ha,
3926 "scsi(%ld): mbx abort command failed in %s\n",
3927 vha->host_no, __func__);
3928 } else {
3929 qla_printk(KERN_INFO, ha,
3930 "scsi(%ld): mbx abort command success in %s\n",
3931 vha->host_no, __func__);
3932 }
3933 spin_lock_irqsave(&ha->hardware_lock, flags);
3934 }
3935 }
3936 }
3937 }
3938 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3939
3940 /* Wait for pending cmds (physical and virtual) to complete */
3941 if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3942 WAIT_HOST) == QLA_SUCCESS) {
3943 DEBUG2(qla_printk(KERN_INFO, ha,
3944 "Done wait for pending commands\n"));
3945 }
3946 }
3947 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree