b251b4d8a2ef34066ca7b3a56dc426d8165dc55d
[linux-2.6.git] / drivers / scsi / qla2xxx / qla_nx.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2011 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8 #include <linux/delay.h>
9 #include <linux/pci.h>
10 #include <linux/ratelimit.h>
11 #include <linux/vmalloc.h>
12 #include <scsi/scsi_tcq.h>
13
14 #define MASK(n)                 ((1ULL<<(n))-1)
15 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
16         ((addr >> 25) & 0x3ff))
17 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
18         ((addr >> 25) & 0x3ff))
19 #define MS_WIN(addr) (addr & 0x0ffc0000)
20 #define QLA82XX_PCI_MN_2M   (0)
21 #define QLA82XX_PCI_MS_2M   (0x80000)
22 #define QLA82XX_PCI_OCM0_2M (0xc0000)
23 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
24 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
25 #define BLOCK_PROTECT_BITS 0x0F
26
27 /* CRB window related */
28 #define CRB_BLK(off)    ((off >> 20) & 0x3f)
29 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
30 #define CRB_WINDOW_2M   (0x130060)
31 #define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
32 #define CRB_HI(off)     ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
33                         ((off) & 0xf0000))
34 #define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
35 #define CRB_INDIRECT_2M (0x1e0000UL)
36
37 #define MAX_CRB_XFORM 60
38 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
39 int qla82xx_crb_table_initialized;
40
41 #define qla82xx_crb_addr_transform(name) \
42         (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
43         QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
44
45 static void qla82xx_crb_addr_transform_setup(void)
46 {
47         qla82xx_crb_addr_transform(XDMA);
48         qla82xx_crb_addr_transform(TIMR);
49         qla82xx_crb_addr_transform(SRE);
50         qla82xx_crb_addr_transform(SQN3);
51         qla82xx_crb_addr_transform(SQN2);
52         qla82xx_crb_addr_transform(SQN1);
53         qla82xx_crb_addr_transform(SQN0);
54         qla82xx_crb_addr_transform(SQS3);
55         qla82xx_crb_addr_transform(SQS2);
56         qla82xx_crb_addr_transform(SQS1);
57         qla82xx_crb_addr_transform(SQS0);
58         qla82xx_crb_addr_transform(RPMX7);
59         qla82xx_crb_addr_transform(RPMX6);
60         qla82xx_crb_addr_transform(RPMX5);
61         qla82xx_crb_addr_transform(RPMX4);
62         qla82xx_crb_addr_transform(RPMX3);
63         qla82xx_crb_addr_transform(RPMX2);
64         qla82xx_crb_addr_transform(RPMX1);
65         qla82xx_crb_addr_transform(RPMX0);
66         qla82xx_crb_addr_transform(ROMUSB);
67         qla82xx_crb_addr_transform(SN);
68         qla82xx_crb_addr_transform(QMN);
69         qla82xx_crb_addr_transform(QMS);
70         qla82xx_crb_addr_transform(PGNI);
71         qla82xx_crb_addr_transform(PGND);
72         qla82xx_crb_addr_transform(PGN3);
73         qla82xx_crb_addr_transform(PGN2);
74         qla82xx_crb_addr_transform(PGN1);
75         qla82xx_crb_addr_transform(PGN0);
76         qla82xx_crb_addr_transform(PGSI);
77         qla82xx_crb_addr_transform(PGSD);
78         qla82xx_crb_addr_transform(PGS3);
79         qla82xx_crb_addr_transform(PGS2);
80         qla82xx_crb_addr_transform(PGS1);
81         qla82xx_crb_addr_transform(PGS0);
82         qla82xx_crb_addr_transform(PS);
83         qla82xx_crb_addr_transform(PH);
84         qla82xx_crb_addr_transform(NIU);
85         qla82xx_crb_addr_transform(I2Q);
86         qla82xx_crb_addr_transform(EG);
87         qla82xx_crb_addr_transform(MN);
88         qla82xx_crb_addr_transform(MS);
89         qla82xx_crb_addr_transform(CAS2);
90         qla82xx_crb_addr_transform(CAS1);
91         qla82xx_crb_addr_transform(CAS0);
92         qla82xx_crb_addr_transform(CAM);
93         qla82xx_crb_addr_transform(C2C1);
94         qla82xx_crb_addr_transform(C2C0);
95         qla82xx_crb_addr_transform(SMB);
96         qla82xx_crb_addr_transform(OCM0);
97         /*
98          * Used only in P3 just define it for P2 also.
99          */
100         qla82xx_crb_addr_transform(I2C0);
101
102         qla82xx_crb_table_initialized = 1;
103 }
104
105 struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
106         {{{0, 0,         0,         0} } },
107         {{{1, 0x0100000, 0x0102000, 0x120000},
108         {1, 0x0110000, 0x0120000, 0x130000},
109         {1, 0x0120000, 0x0122000, 0x124000},
110         {1, 0x0130000, 0x0132000, 0x126000},
111         {1, 0x0140000, 0x0142000, 0x128000},
112         {1, 0x0150000, 0x0152000, 0x12a000},
113         {1, 0x0160000, 0x0170000, 0x110000},
114         {1, 0x0170000, 0x0172000, 0x12e000},
115         {0, 0x0000000, 0x0000000, 0x000000},
116         {0, 0x0000000, 0x0000000, 0x000000},
117         {0, 0x0000000, 0x0000000, 0x000000},
118         {0, 0x0000000, 0x0000000, 0x000000},
119         {0, 0x0000000, 0x0000000, 0x000000},
120         {0, 0x0000000, 0x0000000, 0x000000},
121         {1, 0x01e0000, 0x01e0800, 0x122000},
122         {0, 0x0000000, 0x0000000, 0x000000} } } ,
123         {{{1, 0x0200000, 0x0210000, 0x180000} } },
124         {{{0, 0,         0,         0} } },
125         {{{1, 0x0400000, 0x0401000, 0x169000} } },
126         {{{1, 0x0500000, 0x0510000, 0x140000} } },
127         {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
128         {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
129         {{{1, 0x0800000, 0x0802000, 0x170000},
130         {0, 0x0000000, 0x0000000, 0x000000},
131         {0, 0x0000000, 0x0000000, 0x000000},
132         {0, 0x0000000, 0x0000000, 0x000000},
133         {0, 0x0000000, 0x0000000, 0x000000},
134         {0, 0x0000000, 0x0000000, 0x000000},
135         {0, 0x0000000, 0x0000000, 0x000000},
136         {0, 0x0000000, 0x0000000, 0x000000},
137         {0, 0x0000000, 0x0000000, 0x000000},
138         {0, 0x0000000, 0x0000000, 0x000000},
139         {0, 0x0000000, 0x0000000, 0x000000},
140         {0, 0x0000000, 0x0000000, 0x000000},
141         {0, 0x0000000, 0x0000000, 0x000000},
142         {0, 0x0000000, 0x0000000, 0x000000},
143         {0, 0x0000000, 0x0000000, 0x000000},
144         {1, 0x08f0000, 0x08f2000, 0x172000} } },
145         {{{1, 0x0900000, 0x0902000, 0x174000},
146         {0, 0x0000000, 0x0000000, 0x000000},
147         {0, 0x0000000, 0x0000000, 0x000000},
148         {0, 0x0000000, 0x0000000, 0x000000},
149         {0, 0x0000000, 0x0000000, 0x000000},
150         {0, 0x0000000, 0x0000000, 0x000000},
151         {0, 0x0000000, 0x0000000, 0x000000},
152         {0, 0x0000000, 0x0000000, 0x000000},
153         {0, 0x0000000, 0x0000000, 0x000000},
154         {0, 0x0000000, 0x0000000, 0x000000},
155         {0, 0x0000000, 0x0000000, 0x000000},
156         {0, 0x0000000, 0x0000000, 0x000000},
157         {0, 0x0000000, 0x0000000, 0x000000},
158         {0, 0x0000000, 0x0000000, 0x000000},
159         {0, 0x0000000, 0x0000000, 0x000000},
160         {1, 0x09f0000, 0x09f2000, 0x176000} } },
161         {{{0, 0x0a00000, 0x0a02000, 0x178000},
162         {0, 0x0000000, 0x0000000, 0x000000},
163         {0, 0x0000000, 0x0000000, 0x000000},
164         {0, 0x0000000, 0x0000000, 0x000000},
165         {0, 0x0000000, 0x0000000, 0x000000},
166         {0, 0x0000000, 0x0000000, 0x000000},
167         {0, 0x0000000, 0x0000000, 0x000000},
168         {0, 0x0000000, 0x0000000, 0x000000},
169         {0, 0x0000000, 0x0000000, 0x000000},
170         {0, 0x0000000, 0x0000000, 0x000000},
171         {0, 0x0000000, 0x0000000, 0x000000},
172         {0, 0x0000000, 0x0000000, 0x000000},
173         {0, 0x0000000, 0x0000000, 0x000000},
174         {0, 0x0000000, 0x0000000, 0x000000},
175         {0, 0x0000000, 0x0000000, 0x000000},
176         {1, 0x0af0000, 0x0af2000, 0x17a000} } },
177         {{{0, 0x0b00000, 0x0b02000, 0x17c000},
178         {0, 0x0000000, 0x0000000, 0x000000},
179         {0, 0x0000000, 0x0000000, 0x000000},
180         {0, 0x0000000, 0x0000000, 0x000000},
181         {0, 0x0000000, 0x0000000, 0x000000},
182         {0, 0x0000000, 0x0000000, 0x000000},
183         {0, 0x0000000, 0x0000000, 0x000000},
184         {0, 0x0000000, 0x0000000, 0x000000},
185         {0, 0x0000000, 0x0000000, 0x000000},
186         {0, 0x0000000, 0x0000000, 0x000000},
187         {0, 0x0000000, 0x0000000, 0x000000},
188         {0, 0x0000000, 0x0000000, 0x000000},
189         {0, 0x0000000, 0x0000000, 0x000000},
190         {0, 0x0000000, 0x0000000, 0x000000},
191         {0, 0x0000000, 0x0000000, 0x000000},
192         {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
193         {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
194         {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
195         {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
196         {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
197         {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
198         {{{1, 0x1100000, 0x1101000, 0x160000} } },
199         {{{1, 0x1200000, 0x1201000, 0x161000} } },
200         {{{1, 0x1300000, 0x1301000, 0x162000} } },
201         {{{1, 0x1400000, 0x1401000, 0x163000} } },
202         {{{1, 0x1500000, 0x1501000, 0x165000} } },
203         {{{1, 0x1600000, 0x1601000, 0x166000} } },
204         {{{0, 0,         0,         0} } },
205         {{{0, 0,         0,         0} } },
206         {{{0, 0,         0,         0} } },
207         {{{0, 0,         0,         0} } },
208         {{{0, 0,         0,         0} } },
209         {{{0, 0,         0,         0} } },
210         {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
211         {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
212         {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
213         {{{0} } },
214         {{{1, 0x2100000, 0x2102000, 0x120000},
215         {1, 0x2110000, 0x2120000, 0x130000},
216         {1, 0x2120000, 0x2122000, 0x124000},
217         {1, 0x2130000, 0x2132000, 0x126000},
218         {1, 0x2140000, 0x2142000, 0x128000},
219         {1, 0x2150000, 0x2152000, 0x12a000},
220         {1, 0x2160000, 0x2170000, 0x110000},
221         {1, 0x2170000, 0x2172000, 0x12e000},
222         {0, 0x0000000, 0x0000000, 0x000000},
223         {0, 0x0000000, 0x0000000, 0x000000},
224         {0, 0x0000000, 0x0000000, 0x000000},
225         {0, 0x0000000, 0x0000000, 0x000000},
226         {0, 0x0000000, 0x0000000, 0x000000},
227         {0, 0x0000000, 0x0000000, 0x000000},
228         {0, 0x0000000, 0x0000000, 0x000000},
229         {0, 0x0000000, 0x0000000, 0x000000} } },
230         {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
231         {{{0} } },
232         {{{0} } },
233         {{{0} } },
234         {{{0} } },
235         {{{0} } },
236         {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
237         {{{1, 0x2900000, 0x2901000, 0x16b000} } },
238         {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
239         {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
240         {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
241         {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
242         {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
243         {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
244         {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
245         {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
246         {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
247         {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
248         {{{0} } },
249         {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
250         {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
251         {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
252         {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
253         {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
254         {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
255         {{{0} } },
256         {{{0} } },
257         {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
258         {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
259         {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
260 };
261
262 /*
263  * top 12 bits of crb internal address (hub, agent)
264  */
265 unsigned qla82xx_crb_hub_agt[64] = {
266         0,
267         QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
268         QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
269         QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
270         0,
271         QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
272         QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
273         QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
274         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
275         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
276         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
277         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
278         QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
279         QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
280         QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
281         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
282         QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
283         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
284         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
285         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
286         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
287         QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
288         QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
289         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
290         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
291         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
292         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
293         0,
294         QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
295         QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
296         0,
297         QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
298         0,
299         QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
300         QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
301         0,
302         0,
303         0,
304         0,
305         0,
306         QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
307         0,
308         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
309         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
310         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
311         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
312         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
313         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
314         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
315         QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
316         QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
317         QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
318         0,
319         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
320         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
321         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
322         QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
323         0,
324         QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
325         QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
326         QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
327         0,
328         QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
329         0,
330 };
331
332 /* Device states */
333 char *q_dev_state[] = {
334          "Unknown",
335         "Cold",
336         "Initializing",
337         "Ready",
338         "Need Reset",
339         "Need Quiescent",
340         "Failed",
341         "Quiescent",
342 };
343
344 char *qdev_state(uint32_t dev_state)
345 {
346         return q_dev_state[dev_state];
347 }
348
349 /*
350  * In: 'off' is offset from CRB space in 128M pci map
351  * Out: 'off' is 2M pci map addr
352  * side effect: lock crb window
353  */
354 static void
355 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
356 {
357         u32 win_read;
358         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
359
360         ha->crb_win = CRB_HI(*off);
361         writel(ha->crb_win,
362                 (void *)(CRB_WINDOW_2M + ha->nx_pcibase));
363
364         /* Read back value to make sure write has gone through before trying
365          * to use it.
366          */
367         win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
368         if (win_read != ha->crb_win) {
369                 ql_dbg(ql_dbg_p3p, vha, 0xb000,
370                     "%s: Written crbwin (0x%x) "
371                     "!= Read crbwin (0x%x), off=0x%lx.\n",
372                     __func__, ha->crb_win, win_read, *off);
373         }
374         *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
375 }
376
377 static inline unsigned long
378 qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
379 {
380         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
381         /* See if we are currently pointing to the region we want to use next */
382         if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
383                 /* No need to change window. PCIX and PCIEregs are in both
384                  * regs are in both windows.
385                  */
386                 return off;
387         }
388
389         if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
390                 /* We are in first CRB window */
391                 if (ha->curr_window != 0)
392                         WARN_ON(1);
393                 return off;
394         }
395
396         if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
397                 /* We are in second CRB window */
398                 off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
399
400                 if (ha->curr_window != 1)
401                         return off;
402
403                 /* We are in the QM or direct access
404                  * register region - do nothing
405                  */
406                 if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
407                         (off < QLA82XX_PCI_CAMQM_MAX))
408                         return off;
409         }
410         /* strange address given */
411         ql_dbg(ql_dbg_p3p, vha, 0xb001,
412             "%s: Warning: unm_nic_pci_set_crbwindow "
413             "called with an unknown address(%llx).\n",
414             QLA2XXX_DRIVER_NAME, off);
415         return off;
416 }
417
418 static int
419 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
420 {
421         struct crb_128M_2M_sub_block_map *m;
422
423         if (*off >= QLA82XX_CRB_MAX)
424                 return -1;
425
426         if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
427                 *off = (*off - QLA82XX_PCI_CAMQM) +
428                     QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
429                 return 0;
430         }
431
432         if (*off < QLA82XX_PCI_CRBSPACE)
433                 return -1;
434
435         *off -= QLA82XX_PCI_CRBSPACE;
436
437         /* Try direct map */
438         m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
439
440         if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
441                 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
442                 return 0;
443         }
444         /* Not in direct map, use crb window */
445         return 1;
446 }
447
448 #define CRB_WIN_LOCK_TIMEOUT 100000000
449 static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
450 {
451         int done = 0, timeout = 0;
452
453         while (!done) {
454                 /* acquire semaphore3 from PCI HW block */
455                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
456                 if (done == 1)
457                         break;
458                 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
459                         return -1;
460                 timeout++;
461         }
462         qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
463         return 0;
464 }
465
466 int
467 qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
468 {
469         unsigned long flags = 0;
470         int rv;
471
472         rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
473
474         BUG_ON(rv == -1);
475
476         if (rv == 1) {
477                 write_lock_irqsave(&ha->hw_lock, flags);
478                 qla82xx_crb_win_lock(ha);
479                 qla82xx_pci_set_crbwindow_2M(ha, &off);
480         }
481
482         writel(data, (void __iomem *)off);
483
484         if (rv == 1) {
485                 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
486                 write_unlock_irqrestore(&ha->hw_lock, flags);
487         }
488         return 0;
489 }
490
491 int
492 qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
493 {
494         unsigned long flags = 0;
495         int rv;
496         u32 data;
497
498         rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
499
500         BUG_ON(rv == -1);
501
502         if (rv == 1) {
503                 write_lock_irqsave(&ha->hw_lock, flags);
504                 qla82xx_crb_win_lock(ha);
505                 qla82xx_pci_set_crbwindow_2M(ha, &off);
506         }
507         data = RD_REG_DWORD((void __iomem *)off);
508
509         if (rv == 1) {
510                 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
511                 write_unlock_irqrestore(&ha->hw_lock, flags);
512         }
513         return data;
514 }
515
516 #define IDC_LOCK_TIMEOUT 100000000
517 int qla82xx_idc_lock(struct qla_hw_data *ha)
518 {
519         int i;
520         int done = 0, timeout = 0;
521
522         while (!done) {
523                 /* acquire semaphore5 from PCI HW block */
524                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
525                 if (done == 1)
526                         break;
527                 if (timeout >= IDC_LOCK_TIMEOUT)
528                         return -1;
529
530                 timeout++;
531
532                 /* Yield CPU */
533                 if (!in_interrupt())
534                         schedule();
535                 else {
536                         for (i = 0; i < 20; i++)
537                                 cpu_relax();
538                 }
539         }
540
541         return 0;
542 }
543
544 void qla82xx_idc_unlock(struct qla_hw_data *ha)
545 {
546         qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
547 }
548
549 /*  PCI Windowing for DDR regions.  */
550 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
551         (((addr) <= (high)) && ((addr) >= (low)))
552 /*
553  * check memory access boundary.
554  * used by test agent. support ddr access only for now
555  */
556 static unsigned long
557 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
558         unsigned long long addr, int size)
559 {
560         if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
561                 QLA82XX_ADDR_DDR_NET_MAX) ||
562                 !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
563                 QLA82XX_ADDR_DDR_NET_MAX) ||
564                 ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
565                         return 0;
566         else
567                 return 1;
568 }
569
570 int qla82xx_pci_set_window_warning_count;
571
572 static unsigned long
573 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
574 {
575         int window;
576         u32 win_read;
577         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
578
579         if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
580                 QLA82XX_ADDR_DDR_NET_MAX)) {
581                 /* DDR network side */
582                 window = MN_WIN(addr);
583                 ha->ddr_mn_window = window;
584                 qla82xx_wr_32(ha,
585                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
586                 win_read = qla82xx_rd_32(ha,
587                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
588                 if ((win_read << 17) != window) {
589                         ql_dbg(ql_dbg_p3p, vha, 0xb003,
590                             "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
591                             __func__, window, win_read);
592                 }
593                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
594         } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
595                 QLA82XX_ADDR_OCM0_MAX)) {
596                 unsigned int temp1;
597                 if ((addr & 0x00ff800) == 0xff800) {
598                         ql_log(ql_log_warn, vha, 0xb004,
599                             "%s: QM access not handled.\n", __func__);
600                         addr = -1UL;
601                 }
602                 window = OCM_WIN(addr);
603                 ha->ddr_mn_window = window;
604                 qla82xx_wr_32(ha,
605                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
606                 win_read = qla82xx_rd_32(ha,
607                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
608                 temp1 = ((window & 0x1FF) << 7) |
609                     ((window & 0x0FFFE0000) >> 17);
610                 if (win_read != temp1) {
611                         ql_log(ql_log_warn, vha, 0xb005,
612                             "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
613                             __func__, temp1, win_read);
614                 }
615                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
616
617         } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
618                 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
619                 /* QDR network side */
620                 window = MS_WIN(addr);
621                 ha->qdr_sn_window = window;
622                 qla82xx_wr_32(ha,
623                         ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
624                 win_read = qla82xx_rd_32(ha,
625                         ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
626                 if (win_read != window) {
627                         ql_log(ql_log_warn, vha, 0xb006,
628                             "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
629                             __func__, window, win_read);
630                 }
631                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
632         } else {
633                 /*
634                  * peg gdb frequently accesses memory that doesn't exist,
635                  * this limits the chit chat so debugging isn't slowed down.
636                  */
637                 if ((qla82xx_pci_set_window_warning_count++ < 8) ||
638                     (qla82xx_pci_set_window_warning_count%64 == 0)) {
639                         ql_log(ql_log_warn, vha, 0xb007,
640                             "%s: Warning:%s Unknown address range!.\n",
641                             __func__, QLA2XXX_DRIVER_NAME);
642                 }
643                 addr = -1UL;
644         }
645         return addr;
646 }
647
648 /* check if address is in the same windows as the previous access */
649 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
650         unsigned long long addr)
651 {
652         int                     window;
653         unsigned long long      qdr_max;
654
655         qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
656
657         /* DDR network side */
658         if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
659                 QLA82XX_ADDR_DDR_NET_MAX))
660                 BUG();
661         else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
662                 QLA82XX_ADDR_OCM0_MAX))
663                 return 1;
664         else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
665                 QLA82XX_ADDR_OCM1_MAX))
666                 return 1;
667         else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
668                 /* QDR network side */
669                 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
670                 if (ha->qdr_sn_window == window)
671                         return 1;
672         }
673         return 0;
674 }
675
676 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
677         u64 off, void *data, int size)
678 {
679         unsigned long   flags;
680         void           *addr = NULL;
681         int             ret = 0;
682         u64             start;
683         uint8_t         *mem_ptr = NULL;
684         unsigned long   mem_base;
685         unsigned long   mem_page;
686         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
687
688         write_lock_irqsave(&ha->hw_lock, flags);
689
690         /*
691          * If attempting to access unknown address or straddle hw windows,
692          * do not access.
693          */
694         start = qla82xx_pci_set_window(ha, off);
695         if ((start == -1UL) ||
696                 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
697                 write_unlock_irqrestore(&ha->hw_lock, flags);
698                 ql_log(ql_log_fatal, vha, 0xb008,
699                     "%s out of bound pci memory "
700                     "access, offset is 0x%llx.\n",
701                     QLA2XXX_DRIVER_NAME, off);
702                 return -1;
703         }
704
705         write_unlock_irqrestore(&ha->hw_lock, flags);
706         mem_base = pci_resource_start(ha->pdev, 0);
707         mem_page = start & PAGE_MASK;
708         /* Map two pages whenever user tries to access addresses in two
709         * consecutive pages.
710         */
711         if (mem_page != ((start + size - 1) & PAGE_MASK))
712                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
713         else
714                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
715         if (mem_ptr == 0UL) {
716                 *(u8  *)data = 0;
717                 return -1;
718         }
719         addr = mem_ptr;
720         addr += start & (PAGE_SIZE - 1);
721         write_lock_irqsave(&ha->hw_lock, flags);
722
723         switch (size) {
724         case 1:
725                 *(u8  *)data = readb(addr);
726                 break;
727         case 2:
728                 *(u16 *)data = readw(addr);
729                 break;
730         case 4:
731                 *(u32 *)data = readl(addr);
732                 break;
733         case 8:
734                 *(u64 *)data = readq(addr);
735                 break;
736         default:
737                 ret = -1;
738                 break;
739         }
740         write_unlock_irqrestore(&ha->hw_lock, flags);
741
742         if (mem_ptr)
743                 iounmap(mem_ptr);
744         return ret;
745 }
746
747 static int
748 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
749         u64 off, void *data, int size)
750 {
751         unsigned long   flags;
752         void           *addr = NULL;
753         int             ret = 0;
754         u64             start;
755         uint8_t         *mem_ptr = NULL;
756         unsigned long   mem_base;
757         unsigned long   mem_page;
758         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
759
760         write_lock_irqsave(&ha->hw_lock, flags);
761
762         /*
763          * If attempting to access unknown address or straddle hw windows,
764          * do not access.
765          */
766         start = qla82xx_pci_set_window(ha, off);
767         if ((start == -1UL) ||
768                 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
769                 write_unlock_irqrestore(&ha->hw_lock, flags);
770                 ql_log(ql_log_fatal, vha, 0xb009,
771                     "%s out of bount memory "
772                     "access, offset is 0x%llx.\n",
773                     QLA2XXX_DRIVER_NAME, off);
774                 return -1;
775         }
776
777         write_unlock_irqrestore(&ha->hw_lock, flags);
778         mem_base = pci_resource_start(ha->pdev, 0);
779         mem_page = start & PAGE_MASK;
780         /* Map two pages whenever user tries to access addresses in two
781          * consecutive pages.
782          */
783         if (mem_page != ((start + size - 1) & PAGE_MASK))
784                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
785         else
786                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
787         if (mem_ptr == 0UL)
788                 return -1;
789
790         addr = mem_ptr;
791         addr += start & (PAGE_SIZE - 1);
792         write_lock_irqsave(&ha->hw_lock, flags);
793
794         switch (size) {
795         case 1:
796                 writeb(*(u8  *)data, addr);
797                 break;
798         case 2:
799                 writew(*(u16 *)data, addr);
800                 break;
801         case 4:
802                 writel(*(u32 *)data, addr);
803                 break;
804         case 8:
805                 writeq(*(u64 *)data, addr);
806                 break;
807         default:
808                 ret = -1;
809                 break;
810         }
811         write_unlock_irqrestore(&ha->hw_lock, flags);
812         if (mem_ptr)
813                 iounmap(mem_ptr);
814         return ret;
815 }
816
817 #define MTU_FUDGE_FACTOR 100
818 static unsigned long
819 qla82xx_decode_crb_addr(unsigned long addr)
820 {
821         int i;
822         unsigned long base_addr, offset, pci_base;
823
824         if (!qla82xx_crb_table_initialized)
825                 qla82xx_crb_addr_transform_setup();
826
827         pci_base = ADDR_ERROR;
828         base_addr = addr & 0xfff00000;
829         offset = addr & 0x000fffff;
830
831         for (i = 0; i < MAX_CRB_XFORM; i++) {
832                 if (crb_addr_xform[i] == base_addr) {
833                         pci_base = i << 20;
834                         break;
835                 }
836         }
837         if (pci_base == ADDR_ERROR)
838                 return pci_base;
839         return pci_base + offset;
840 }
841
842 static long rom_max_timeout = 100;
843 static long qla82xx_rom_lock_timeout = 100;
844
845 static int
846 qla82xx_rom_lock(struct qla_hw_data *ha)
847 {
848         int done = 0, timeout = 0;
849
850         while (!done) {
851                 /* acquire semaphore2 from PCI HW block */
852                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
853                 if (done == 1)
854                         break;
855                 if (timeout >= qla82xx_rom_lock_timeout)
856                         return -1;
857                 timeout++;
858         }
859         qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
860         return 0;
861 }
862
863 static void
864 qla82xx_rom_unlock(struct qla_hw_data *ha)
865 {
866         qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
867 }
868
869 static int
870 qla82xx_wait_rom_busy(struct qla_hw_data *ha)
871 {
872         long timeout = 0;
873         long done = 0 ;
874         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
875
876         while (done == 0) {
877                 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
878                 done &= 4;
879                 timeout++;
880                 if (timeout >= rom_max_timeout) {
881                         ql_dbg(ql_dbg_p3p, vha, 0xb00a,
882                             "%s: Timeout reached waiting for rom busy.\n",
883                             QLA2XXX_DRIVER_NAME);
884                         return -1;
885                 }
886         }
887         return 0;
888 }
889
890 static int
891 qla82xx_wait_rom_done(struct qla_hw_data *ha)
892 {
893         long timeout = 0;
894         long done = 0 ;
895         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
896
897         while (done == 0) {
898                 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
899                 done &= 2;
900                 timeout++;
901                 if (timeout >= rom_max_timeout) {
902                         ql_dbg(ql_dbg_p3p, vha, 0xb00b,
903                             "%s: Timeout reached waiting for rom done.\n",
904                             QLA2XXX_DRIVER_NAME);
905                         return -1;
906                 }
907         }
908         return 0;
909 }
910
911 int
912 qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
913 {
914         uint32_t  off_value, rval = 0;
915
916         WRT_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase),
917             (off & 0xFFFF0000));
918
919         /* Read back value to make sure write has gone through */
920         RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
921         off_value  = (off & 0x0000FFFF);
922
923         if (flag)
924                 WRT_REG_DWORD((void *)
925                     (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
926                     data);
927         else
928                 rval = RD_REG_DWORD((void *)
929                     (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
930
931         return rval;
932 }
933
934 static int
935 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
936 {
937         /* Dword reads to flash. */
938         qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
939         *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
940             (addr & 0x0000FFFF), 0, 0);
941
942         return 0;
943 }
944
945 static int
946 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
947 {
948         int ret, loops = 0;
949         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
950
951         while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
952                 udelay(100);
953                 schedule();
954                 loops++;
955         }
956         if (loops >= 50000) {
957                 ql_log(ql_log_fatal, vha, 0x00b9,
958                     "Failed to aquire SEM2 lock.\n");
959                 return -1;
960         }
961         ret = qla82xx_do_rom_fast_read(ha, addr, valp);
962         qla82xx_rom_unlock(ha);
963         return ret;
964 }
965
966 static int
967 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
968 {
969         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
970         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
971         qla82xx_wait_rom_busy(ha);
972         if (qla82xx_wait_rom_done(ha)) {
973                 ql_log(ql_log_warn, vha, 0xb00c,
974                     "Error waiting for rom done.\n");
975                 return -1;
976         }
977         *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
978         return 0;
979 }
980
981 static int
982 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
983 {
984         long timeout = 0;
985         uint32_t done = 1 ;
986         uint32_t val;
987         int ret = 0;
988         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
989
990         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
991         while ((done != 0) && (ret == 0)) {
992                 ret = qla82xx_read_status_reg(ha, &val);
993                 done = val & 1;
994                 timeout++;
995                 udelay(10);
996                 cond_resched();
997                 if (timeout >= 50000) {
998                         ql_log(ql_log_warn, vha, 0xb00d,
999                             "Timeout reached waiting for write finish.\n");
1000                         return -1;
1001                 }
1002         }
1003         return ret;
1004 }
1005
1006 static int
1007 qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
1008 {
1009         uint32_t val;
1010         qla82xx_wait_rom_busy(ha);
1011         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1012         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1013         qla82xx_wait_rom_busy(ha);
1014         if (qla82xx_wait_rom_done(ha))
1015                 return -1;
1016         if (qla82xx_read_status_reg(ha, &val) != 0)
1017                 return -1;
1018         if ((val & 2) != 2)
1019                 return -1;
1020         return 0;
1021 }
1022
1023 static int
1024 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1025 {
1026         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1027         if (qla82xx_flash_set_write_enable(ha))
1028                 return -1;
1029         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1030         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1031         if (qla82xx_wait_rom_done(ha)) {
1032                 ql_log(ql_log_warn, vha, 0xb00e,
1033                     "Error waiting for rom done.\n");
1034                 return -1;
1035         }
1036         return qla82xx_flash_wait_write_finish(ha);
1037 }
1038
1039 static int
1040 qla82xx_write_disable_flash(struct qla_hw_data *ha)
1041 {
1042         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1043         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1044         if (qla82xx_wait_rom_done(ha)) {
1045                 ql_log(ql_log_warn, vha, 0xb00f,
1046                     "Error waiting for rom done.\n");
1047                 return -1;
1048         }
1049         return 0;
1050 }
1051
1052 static int
1053 ql82xx_rom_lock_d(struct qla_hw_data *ha)
1054 {
1055         int loops = 0;
1056         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1057
1058         while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1059                 udelay(100);
1060                 cond_resched();
1061                 loops++;
1062         }
1063         if (loops >= 50000) {
1064                 ql_log(ql_log_warn, vha, 0xb010,
1065                     "ROM lock failed.\n");
1066                 return -1;
1067         }
1068         return 0;
1069 }
1070
1071 static int
1072 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1073         uint32_t data)
1074 {
1075         int ret = 0;
1076         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1077
1078         ret = ql82xx_rom_lock_d(ha);
1079         if (ret < 0) {
1080                 ql_log(ql_log_warn, vha, 0xb011,
1081                     "ROM lock failed.\n");
1082                 return ret;
1083         }
1084
1085         if (qla82xx_flash_set_write_enable(ha))
1086                 goto done_write;
1087
1088         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1089         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1090         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1091         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1092         qla82xx_wait_rom_busy(ha);
1093         if (qla82xx_wait_rom_done(ha)) {
1094                 ql_log(ql_log_warn, vha, 0xb012,
1095                     "Error waiting for rom done.\n");
1096                 ret = -1;
1097                 goto done_write;
1098         }
1099
1100         ret = qla82xx_flash_wait_write_finish(ha);
1101
1102 done_write:
1103         qla82xx_rom_unlock(ha);
1104         return ret;
1105 }
1106
1107 /* This routine does CRB initialize sequence
1108  *  to put the ISP into operational state
1109  */
1110 static int
1111 qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1112 {
1113         int addr, val;
1114         int i ;
1115         struct crb_addr_pair *buf;
1116         unsigned long off;
1117         unsigned offset, n;
1118         struct qla_hw_data *ha = vha->hw;
1119
1120         struct crb_addr_pair {
1121                 long addr;
1122                 long data;
1123         };
1124
1125         /* Halt all the indiviual PEGs and other blocks of the ISP */
1126         qla82xx_rom_lock(ha);
1127
1128         /* disable all I2Q */
1129         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1130         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1131         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1132         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1133         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1134         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1135
1136         /* disable all niu interrupts */
1137         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1138         /* disable xge rx/tx */
1139         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1140         /* disable xg1 rx/tx */
1141         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1142         /* disable sideband mac */
1143         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1144         /* disable ap0 mac */
1145         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1146         /* disable ap1 mac */
1147         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1148
1149         /* halt sre */
1150         val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1151         qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1152
1153         /* halt epg */
1154         qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1155
1156         /* halt timers */
1157         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1158         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1159         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1160         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1161         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1162         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1163
1164         /* halt pegs */
1165         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1166         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1167         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1168         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1169         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1170         msleep(20);
1171
1172         /* big hammer */
1173         if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1174                 /* don't reset CAM block on reset */
1175                 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1176         else
1177                 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1178         qla82xx_rom_unlock(ha);
1179
1180         /* Read the signature value from the flash.
1181          * Offset 0: Contain signature (0xcafecafe)
1182          * Offset 4: Offset and number of addr/value pairs
1183          * that present in CRB initialize sequence
1184          */
1185         if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1186             qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1187                 ql_log(ql_log_fatal, vha, 0x006e,
1188                     "Error Reading crb_init area: n: %08x.\n", n);
1189                 return -1;
1190         }
1191
1192         /* Offset in flash = lower 16 bits
1193          * Number of enteries = upper 16 bits
1194          */
1195         offset = n & 0xffffU;
1196         n = (n >> 16) & 0xffffU;
1197
1198         /* number of addr/value pair should not exceed 1024 enteries */
1199         if (n  >= 1024) {
1200                 ql_log(ql_log_fatal, vha, 0x0071,
1201                     "Card flash not initialized:n=0x%x.\n", n);
1202                 return -1;
1203         }
1204
1205         ql_log(ql_log_info, vha, 0x0072,
1206             "%d CRB init values found in ROM.\n", n);
1207
1208         buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1209         if (buf == NULL) {
1210                 ql_log(ql_log_fatal, vha, 0x010c,
1211                     "Unable to allocate memory.\n");
1212                 return -1;
1213         }
1214
1215         for (i = 0; i < n; i++) {
1216                 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1217                     qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1218                         kfree(buf);
1219                         return -1;
1220                 }
1221
1222                 buf[i].addr = addr;
1223                 buf[i].data = val;
1224         }
1225
1226         for (i = 0; i < n; i++) {
1227                 /* Translate internal CRB initialization
1228                  * address to PCI bus address
1229                  */
1230                 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1231                     QLA82XX_PCI_CRBSPACE;
1232                 /* Not all CRB  addr/value pair to be written,
1233                  * some of them are skipped
1234                  */
1235
1236                 /* skipping cold reboot MAGIC */
1237                 if (off == QLA82XX_CAM_RAM(0x1fc))
1238                         continue;
1239
1240                 /* do not reset PCI */
1241                 if (off == (ROMUSB_GLB + 0xbc))
1242                         continue;
1243
1244                 /* skip core clock, so that firmware can increase the clock */
1245                 if (off == (ROMUSB_GLB + 0xc8))
1246                         continue;
1247
1248                 /* skip the function enable register */
1249                 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1250                         continue;
1251
1252                 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1253                         continue;
1254
1255                 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1256                         continue;
1257
1258                 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1259                         continue;
1260
1261                 if (off == ADDR_ERROR) {
1262                         ql_log(ql_log_fatal, vha, 0x0116,
1263                             "Unknow addr: 0x%08lx.\n", buf[i].addr);
1264                         continue;
1265                 }
1266
1267                 qla82xx_wr_32(ha, off, buf[i].data);
1268
1269                 /* ISP requires much bigger delay to settle down,
1270                  * else crb_window returns 0xffffffff
1271                  */
1272                 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1273                         msleep(1000);
1274
1275                 /* ISP requires millisec delay between
1276                  * successive CRB register updation
1277                  */
1278                 msleep(1);
1279         }
1280
1281         kfree(buf);
1282
1283         /* Resetting the data and instruction cache */
1284         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1285         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1286         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1287
1288         /* Clear all protocol processing engines */
1289         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1290         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1291         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1292         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1293         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1294         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1295         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1296         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1297         return 0;
1298 }
1299
1300 static int
1301 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1302                 u64 off, void *data, int size)
1303 {
1304         int i, j, ret = 0, loop, sz[2], off0;
1305         int scale, shift_amount, startword;
1306         uint32_t temp;
1307         uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1308
1309         /*
1310          * If not MN, go check for MS or invalid.
1311          */
1312         if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1313                 mem_crb = QLA82XX_CRB_QDR_NET;
1314         else {
1315                 mem_crb = QLA82XX_CRB_DDR_NET;
1316                 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1317                         return qla82xx_pci_mem_write_direct(ha,
1318                             off, data, size);
1319         }
1320
1321         off0 = off & 0x7;
1322         sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1323         sz[1] = size - sz[0];
1324
1325         off8 = off & 0xfffffff0;
1326         loop = (((off & 0xf) + size - 1) >> 4) + 1;
1327         shift_amount = 4;
1328         scale = 2;
1329         startword = (off & 0xf)/8;
1330
1331         for (i = 0; i < loop; i++) {
1332                 if (qla82xx_pci_mem_read_2M(ha, off8 +
1333                     (i << shift_amount), &word[i * scale], 8))
1334                         return -1;
1335         }
1336
1337         switch (size) {
1338         case 1:
1339                 tmpw = *((uint8_t *)data);
1340                 break;
1341         case 2:
1342                 tmpw = *((uint16_t *)data);
1343                 break;
1344         case 4:
1345                 tmpw = *((uint32_t *)data);
1346                 break;
1347         case 8:
1348         default:
1349                 tmpw = *((uint64_t *)data);
1350                 break;
1351         }
1352
1353         if (sz[0] == 8) {
1354                 word[startword] = tmpw;
1355         } else {
1356                 word[startword] &=
1357                         ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1358                 word[startword] |= tmpw << (off0 * 8);
1359         }
1360         if (sz[1] != 0) {
1361                 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1362                 word[startword+1] |= tmpw >> (sz[0] * 8);
1363         }
1364
1365         for (i = 0; i < loop; i++) {
1366                 temp = off8 + (i << shift_amount);
1367                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1368                 temp = 0;
1369                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1370                 temp = word[i * scale] & 0xffffffff;
1371                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1372                 temp = (word[i * scale] >> 32) & 0xffffffff;
1373                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1374                 temp = word[i*scale + 1] & 0xffffffff;
1375                 qla82xx_wr_32(ha, mem_crb +
1376                     MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1377                 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1378                 qla82xx_wr_32(ha, mem_crb +
1379                     MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1380
1381                 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1382                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1383                 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1384                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1385
1386                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1387                         temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1388                         if ((temp & MIU_TA_CTL_BUSY) == 0)
1389                                 break;
1390                 }
1391
1392                 if (j >= MAX_CTL_CHECK) {
1393                         if (printk_ratelimit())
1394                                 dev_err(&ha->pdev->dev,
1395                                     "failed to write through agent.\n");
1396                         ret = -1;
1397                         break;
1398                 }
1399         }
1400
1401         return ret;
1402 }
1403
1404 static int
1405 qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1406 {
1407         int  i;
1408         long size = 0;
1409         long flashaddr = ha->flt_region_bootload << 2;
1410         long memaddr = BOOTLD_START;
1411         u64 data;
1412         u32 high, low;
1413         size = (IMAGE_START - BOOTLD_START) / 8;
1414
1415         for (i = 0; i < size; i++) {
1416                 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1417                     (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1418                         return -1;
1419                 }
1420                 data = ((u64)high << 32) | low ;
1421                 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1422                 flashaddr += 8;
1423                 memaddr += 8;
1424
1425                 if (i % 0x1000 == 0)
1426                         msleep(1);
1427         }
1428         udelay(100);
1429         read_lock(&ha->hw_lock);
1430         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1431         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1432         read_unlock(&ha->hw_lock);
1433         return 0;
1434 }
1435
1436 int
1437 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1438                 u64 off, void *data, int size)
1439 {
1440         int i, j = 0, k, start, end, loop, sz[2], off0[2];
1441         int           shift_amount;
1442         uint32_t      temp;
1443         uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1444
1445         /*
1446          * If not MN, go check for MS or invalid.
1447          */
1448
1449         if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1450                 mem_crb = QLA82XX_CRB_QDR_NET;
1451         else {
1452                 mem_crb = QLA82XX_CRB_DDR_NET;
1453                 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1454                         return qla82xx_pci_mem_read_direct(ha,
1455                             off, data, size);
1456         }
1457
1458         off8 = off & 0xfffffff0;
1459         off0[0] = off & 0xf;
1460         sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1461         shift_amount = 4;
1462         loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1463         off0[1] = 0;
1464         sz[1] = size - sz[0];
1465
1466         for (i = 0; i < loop; i++) {
1467                 temp = off8 + (i << shift_amount);
1468                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1469                 temp = 0;
1470                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1471                 temp = MIU_TA_CTL_ENABLE;
1472                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1473                 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1474                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1475
1476                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1477                         temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1478                         if ((temp & MIU_TA_CTL_BUSY) == 0)
1479                                 break;
1480                 }
1481
1482                 if (j >= MAX_CTL_CHECK) {
1483                         if (printk_ratelimit())
1484                                 dev_err(&ha->pdev->dev,
1485                                     "failed to read through agent.\n");
1486                         break;
1487                 }
1488
1489                 start = off0[i] >> 2;
1490                 end   = (off0[i] + sz[i] - 1) >> 2;
1491                 for (k = start; k <= end; k++) {
1492                         temp = qla82xx_rd_32(ha,
1493                                         mem_crb + MIU_TEST_AGT_RDDATA(k));
1494                         word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1495                 }
1496         }
1497
1498         if (j >= MAX_CTL_CHECK)
1499                 return -1;
1500
1501         if ((off0[0] & 7) == 0) {
1502                 val = word[0];
1503         } else {
1504                 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1505                         ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1506         }
1507
1508         switch (size) {
1509         case 1:
1510                 *(uint8_t  *)data = val;
1511                 break;
1512         case 2:
1513                 *(uint16_t *)data = val;
1514                 break;
1515         case 4:
1516                 *(uint32_t *)data = val;
1517                 break;
1518         case 8:
1519                 *(uint64_t *)data = val;
1520                 break;
1521         }
1522         return 0;
1523 }
1524
1525
1526 static struct qla82xx_uri_table_desc *
1527 qla82xx_get_table_desc(const u8 *unirom, int section)
1528 {
1529         uint32_t i;
1530         struct qla82xx_uri_table_desc *directory =
1531                 (struct qla82xx_uri_table_desc *)&unirom[0];
1532         __le32 offset;
1533         __le32 tab_type;
1534         __le32 entries = cpu_to_le32(directory->num_entries);
1535
1536         for (i = 0; i < entries; i++) {
1537                 offset = cpu_to_le32(directory->findex) +
1538                     (i * cpu_to_le32(directory->entry_size));
1539                 tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1540
1541                 if (tab_type == section)
1542                         return (struct qla82xx_uri_table_desc *)&unirom[offset];
1543         }
1544
1545         return NULL;
1546 }
1547
1548 static struct qla82xx_uri_data_desc *
1549 qla82xx_get_data_desc(struct qla_hw_data *ha,
1550         u32 section, u32 idx_offset)
1551 {
1552         const u8 *unirom = ha->hablob->fw->data;
1553         int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1554         struct qla82xx_uri_table_desc *tab_desc = NULL;
1555         __le32 offset;
1556
1557         tab_desc = qla82xx_get_table_desc(unirom, section);
1558         if (!tab_desc)
1559                 return NULL;
1560
1561         offset = cpu_to_le32(tab_desc->findex) +
1562             (cpu_to_le32(tab_desc->entry_size) * idx);
1563
1564         return (struct qla82xx_uri_data_desc *)&unirom[offset];
1565 }
1566
1567 static u8 *
1568 qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1569 {
1570         u32 offset = BOOTLD_START;
1571         struct qla82xx_uri_data_desc *uri_desc = NULL;
1572
1573         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1574                 uri_desc = qla82xx_get_data_desc(ha,
1575                     QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1576                 if (uri_desc)
1577                         offset = cpu_to_le32(uri_desc->findex);
1578         }
1579
1580         return (u8 *)&ha->hablob->fw->data[offset];
1581 }
1582
1583 static __le32
1584 qla82xx_get_fw_size(struct qla_hw_data *ha)
1585 {
1586         struct qla82xx_uri_data_desc *uri_desc = NULL;
1587
1588         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1589                 uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1590                     QLA82XX_URI_FIRMWARE_IDX_OFF);
1591                 if (uri_desc)
1592                         return cpu_to_le32(uri_desc->size);
1593         }
1594
1595         return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1596 }
1597
1598 static u8 *
1599 qla82xx_get_fw_offs(struct qla_hw_data *ha)
1600 {
1601         u32 offset = IMAGE_START;
1602         struct qla82xx_uri_data_desc *uri_desc = NULL;
1603
1604         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1605                 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1606                         QLA82XX_URI_FIRMWARE_IDX_OFF);
1607                 if (uri_desc)
1608                         offset = cpu_to_le32(uri_desc->findex);
1609         }
1610
1611         return (u8 *)&ha->hablob->fw->data[offset];
1612 }
1613
1614 /* PCI related functions */
1615 char *
1616 qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
1617 {
1618         int pcie_reg;
1619         struct qla_hw_data *ha = vha->hw;
1620         char lwstr[6];
1621         uint16_t lnk;
1622
1623         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1624         pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
1625         ha->link_width = (lnk >> 4) & 0x3f;
1626
1627         strcpy(str, "PCIe (");
1628         strcat(str, "2.5Gb/s ");
1629         snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
1630         strcat(str, lwstr);
1631         return str;
1632 }
1633
1634 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1635 {
1636         unsigned long val = 0;
1637         u32 control;
1638
1639         switch (region) {
1640         case 0:
1641                 val = 0;
1642                 break;
1643         case 1:
1644                 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1645                 val = control + QLA82XX_MSIX_TBL_SPACE;
1646                 break;
1647         }
1648         return val;
1649 }
1650
1651
1652 int
1653 qla82xx_iospace_config(struct qla_hw_data *ha)
1654 {
1655         uint32_t len = 0;
1656
1657         if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1658                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1659                     "Failed to reserver selected regions.\n");
1660                 goto iospace_error_exit;
1661         }
1662
1663         /* Use MMIO operations for all accesses. */
1664         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1665                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1666                     "Region #0 not an MMIO resource, aborting.\n");
1667                 goto iospace_error_exit;
1668         }
1669
1670         len = pci_resource_len(ha->pdev, 0);
1671         ha->nx_pcibase =
1672             (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1673         if (!ha->nx_pcibase) {
1674                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1675                     "Cannot remap pcibase MMIO, aborting.\n");
1676                 pci_release_regions(ha->pdev);
1677                 goto iospace_error_exit;
1678         }
1679
1680         /* Mapping of IO base pointer */
1681         ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1682             0xbc000 + (ha->pdev->devfn << 11));
1683
1684         if (!ql2xdbwr) {
1685                 ha->nxdb_wr_ptr =
1686                     (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1687                     (ha->pdev->devfn << 12)), 4);
1688                 if (!ha->nxdb_wr_ptr) {
1689                         ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1690                             "Cannot remap MMIO, aborting.\n");
1691                         pci_release_regions(ha->pdev);
1692                         goto iospace_error_exit;
1693                 }
1694
1695                 /* Mapping of IO base pointer,
1696                  * door bell read and write pointer
1697                  */
1698                 ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1699                     (ha->pdev->devfn * 8);
1700         } else {
1701                 ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1702                         QLA82XX_CAMRAM_DB1 :
1703                         QLA82XX_CAMRAM_DB2);
1704         }
1705
1706         ha->max_req_queues = ha->max_rsp_queues = 1;
1707         ha->msix_count = ha->max_rsp_queues + 1;
1708         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1709             "nx_pci_base=%p iobase=%p "
1710             "max_req_queues=%d msix_count=%d.\n",
1711             (void *)ha->nx_pcibase, ha->iobase,
1712             ha->max_req_queues, ha->msix_count);
1713         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1714             "nx_pci_base=%p iobase=%p "
1715             "max_req_queues=%d msix_count=%d.\n",
1716             (void *)ha->nx_pcibase, ha->iobase,
1717             ha->max_req_queues, ha->msix_count);
1718         return 0;
1719
1720 iospace_error_exit:
1721         return -ENOMEM;
1722 }
1723
1724 /* GS related functions */
1725
1726 /* Initialization related functions */
1727
1728 /**
1729  * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1730  * @ha: HA context
1731  *
1732  * Returns 0 on success.
1733 */
1734 int
1735 qla82xx_pci_config(scsi_qla_host_t *vha)
1736 {
1737         struct qla_hw_data *ha = vha->hw;
1738         int ret;
1739
1740         pci_set_master(ha->pdev);
1741         ret = pci_set_mwi(ha->pdev);
1742         ha->chip_revision = ha->pdev->revision;
1743         ql_dbg(ql_dbg_init, vha, 0x0043,
1744             "Chip revision:%d.\n",
1745             ha->chip_revision);
1746         return 0;
1747 }
1748
1749 /**
1750  * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1751  * @ha: HA context
1752  *
1753  * Returns 0 on success.
1754  */
1755 void
1756 qla82xx_reset_chip(scsi_qla_host_t *vha)
1757 {
1758         struct qla_hw_data *ha = vha->hw;
1759         ha->isp_ops->disable_intrs(ha);
1760 }
1761
1762 void qla82xx_config_rings(struct scsi_qla_host *vha)
1763 {
1764         struct qla_hw_data *ha = vha->hw;
1765         struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1766         struct init_cb_81xx *icb;
1767         struct req_que *req = ha->req_q_map[0];
1768         struct rsp_que *rsp = ha->rsp_q_map[0];
1769
1770         /* Setup ring parameters in initialization control block. */
1771         icb = (struct init_cb_81xx *)ha->init_cb;
1772         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1773         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1774         icb->request_q_length = cpu_to_le16(req->length);
1775         icb->response_q_length = cpu_to_le16(rsp->length);
1776         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1777         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1778         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1779         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1780
1781         WRT_REG_DWORD((unsigned long  __iomem *)&reg->req_q_out[0], 0);
1782         WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_in[0], 0);
1783         WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_out[0], 0);
1784 }
1785
1786 void qla82xx_reset_adapter(struct scsi_qla_host *vha)
1787 {
1788         struct qla_hw_data *ha = vha->hw;
1789         vha->flags.online = 0;
1790         qla2x00_try_to_stop_firmware(vha);
1791         ha->isp_ops->disable_intrs(ha);
1792 }
1793
1794 static int
1795 qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1796 {
1797         u64 *ptr64;
1798         u32 i, flashaddr, size;
1799         __le64 data;
1800
1801         size = (IMAGE_START - BOOTLD_START) / 8;
1802
1803         ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1804         flashaddr = BOOTLD_START;
1805
1806         for (i = 0; i < size; i++) {
1807                 data = cpu_to_le64(ptr64[i]);
1808                 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1809                         return -EIO;
1810                 flashaddr += 8;
1811         }
1812
1813         flashaddr = FLASH_ADDR_START;
1814         size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1815         ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1816
1817         for (i = 0; i < size; i++) {
1818                 data = cpu_to_le64(ptr64[i]);
1819
1820                 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1821                         return -EIO;
1822                 flashaddr += 8;
1823         }
1824         udelay(100);
1825
1826         /* Write a magic value to CAMRAM register
1827          * at a specified offset to indicate
1828          * that all data is written and
1829          * ready for firmware to initialize.
1830          */
1831         qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1832
1833         read_lock(&ha->hw_lock);
1834         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1835         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1836         read_unlock(&ha->hw_lock);
1837         return 0;
1838 }
1839
1840 static int
1841 qla82xx_set_product_offset(struct qla_hw_data *ha)
1842 {
1843         struct qla82xx_uri_table_desc *ptab_desc = NULL;
1844         const uint8_t *unirom = ha->hablob->fw->data;
1845         uint32_t i;
1846         __le32 entries;
1847         __le32 flags, file_chiprev, offset;
1848         uint8_t chiprev = ha->chip_revision;
1849         /* Hardcoding mn_present flag for P3P */
1850         int mn_present = 0;
1851         uint32_t flagbit;
1852
1853         ptab_desc = qla82xx_get_table_desc(unirom,
1854                  QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1855        if (!ptab_desc)
1856                 return -1;
1857
1858         entries = cpu_to_le32(ptab_desc->num_entries);
1859
1860         for (i = 0; i < entries; i++) {
1861                 offset = cpu_to_le32(ptab_desc->findex) +
1862                         (i * cpu_to_le32(ptab_desc->entry_size));
1863                 flags = cpu_to_le32(*((int *)&unirom[offset] +
1864                         QLA82XX_URI_FLAGS_OFF));
1865                 file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1866                         QLA82XX_URI_CHIP_REV_OFF));
1867
1868                 flagbit = mn_present ? 1 : 2;
1869
1870                 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1871                         ha->file_prd_off = offset;
1872                         return 0;
1873                 }
1874         }
1875         return -1;
1876 }
1877
1878 int
1879 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1880 {
1881         __le32 val;
1882         uint32_t min_size;
1883         struct qla_hw_data *ha = vha->hw;
1884         const struct firmware *fw = ha->hablob->fw;
1885
1886         ha->fw_type = fw_type;
1887
1888         if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1889                 if (qla82xx_set_product_offset(ha))
1890                         return -EINVAL;
1891
1892                 min_size = QLA82XX_URI_FW_MIN_SIZE;
1893         } else {
1894                 val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1895                 if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1896                         return -EINVAL;
1897
1898                 min_size = QLA82XX_FW_MIN_SIZE;
1899         }
1900
1901         if (fw->size < min_size)
1902                 return -EINVAL;
1903         return 0;
1904 }
1905
1906 static int
1907 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1908 {
1909         u32 val = 0;
1910         int retries = 60;
1911         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1912
1913         do {
1914                 read_lock(&ha->hw_lock);
1915                 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1916                 read_unlock(&ha->hw_lock);
1917
1918                 switch (val) {
1919                 case PHAN_INITIALIZE_COMPLETE:
1920                 case PHAN_INITIALIZE_ACK:
1921                         return QLA_SUCCESS;
1922                 case PHAN_INITIALIZE_FAILED:
1923                         break;
1924                 default:
1925                         break;
1926                 }
1927                 ql_log(ql_log_info, vha, 0x00a8,
1928                     "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1929                     val, retries);
1930
1931                 msleep(500);
1932
1933         } while (--retries);
1934
1935         ql_log(ql_log_fatal, vha, 0x00a9,
1936             "Cmd Peg initialization failed: 0x%x.\n", val);
1937
1938         val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1939         read_lock(&ha->hw_lock);
1940         qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1941         read_unlock(&ha->hw_lock);
1942         return QLA_FUNCTION_FAILED;
1943 }
1944
1945 static int
1946 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1947 {
1948         u32 val = 0;
1949         int retries = 60;
1950         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1951
1952         do {
1953                 read_lock(&ha->hw_lock);
1954                 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1955                 read_unlock(&ha->hw_lock);
1956
1957                 switch (val) {
1958                 case PHAN_INITIALIZE_COMPLETE:
1959                 case PHAN_INITIALIZE_ACK:
1960                         return QLA_SUCCESS;
1961                 case PHAN_INITIALIZE_FAILED:
1962                         break;
1963                 default:
1964                         break;
1965                 }
1966                 ql_log(ql_log_info, vha, 0x00ab,
1967                     "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1968                     val, retries);
1969
1970                 msleep(500);
1971
1972         } while (--retries);
1973
1974         ql_log(ql_log_fatal, vha, 0x00ac,
1975             "Rcv Peg initializatin failed: 0x%x.\n", val);
1976         read_lock(&ha->hw_lock);
1977         qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1978         read_unlock(&ha->hw_lock);
1979         return QLA_FUNCTION_FAILED;
1980 }
1981
1982 /* ISR related functions */
1983 uint32_t qla82xx_isr_int_target_mask_enable[8] = {
1984         ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
1985         ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
1986         ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
1987         ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
1988 };
1989
1990 uint32_t qla82xx_isr_int_target_status[8] = {
1991         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
1992         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
1993         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
1994         ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
1995 };
1996
1997 static struct qla82xx_legacy_intr_set legacy_intr[] = \
1998         QLA82XX_LEGACY_INTR_CONFIG;
1999
2000 /*
2001  * qla82xx_mbx_completion() - Process mailbox command completions.
2002  * @ha: SCSI driver HA context
2003  * @mb0: Mailbox0 register
2004  */
2005 static void
2006 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2007 {
2008         uint16_t        cnt;
2009         uint16_t __iomem *wptr;
2010         struct qla_hw_data *ha = vha->hw;
2011         struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2012         wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
2013
2014         /* Load return mailbox registers. */
2015         ha->flags.mbox_int = 1;
2016         ha->mailbox_out[0] = mb0;
2017
2018         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2019                 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2020                 wptr++;
2021         }
2022
2023         if (!ha->mcp)
2024                 ql_dbg(ql_dbg_async, vha, 0x5053,
2025                     "MBX pointer ERROR.\n");
2026 }
2027
2028 /*
2029  * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2030  * @irq:
2031  * @dev_id: SCSI driver HA context
2032  * @regs:
2033  *
2034  * Called by system whenever the host adapter generates an interrupt.
2035  *
2036  * Returns handled flag.
2037  */
2038 irqreturn_t
2039 qla82xx_intr_handler(int irq, void *dev_id)
2040 {
2041         scsi_qla_host_t *vha;
2042         struct qla_hw_data *ha;
2043         struct rsp_que *rsp;
2044         struct device_reg_82xx __iomem *reg;
2045         int status = 0, status1 = 0;
2046         unsigned long   flags;
2047         unsigned long   iter;
2048         uint32_t        stat = 0;
2049         uint16_t        mb[4];
2050
2051         rsp = (struct rsp_que *) dev_id;
2052         if (!rsp) {
2053                 ql_log(ql_log_info, NULL, 0xb054,
2054                     "%s: NULL response queue pointer.\n", __func__);
2055                 return IRQ_NONE;
2056         }
2057         ha = rsp->hw;
2058
2059         if (!ha->flags.msi_enabled) {
2060                 status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2061                 if (!(status & ha->nx_legacy_intr.int_vec_bit))
2062                         return IRQ_NONE;
2063
2064                 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2065                 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2066                         return IRQ_NONE;
2067         }
2068
2069         /* clear the interrupt */
2070         qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2071
2072         /* read twice to ensure write is flushed */
2073         qla82xx_rd_32(ha, ISR_INT_VECTOR);
2074         qla82xx_rd_32(ha, ISR_INT_VECTOR);
2075
2076         reg = &ha->iobase->isp82;
2077
2078         spin_lock_irqsave(&ha->hardware_lock, flags);
2079         vha = pci_get_drvdata(ha->pdev);
2080         for (iter = 1; iter--; ) {
2081
2082                 if (RD_REG_DWORD(&reg->host_int)) {
2083                         stat = RD_REG_DWORD(&reg->host_status);
2084
2085                         switch (stat & 0xff) {
2086                         case 0x1:
2087                         case 0x2:
2088                         case 0x10:
2089                         case 0x11:
2090                                 qla82xx_mbx_completion(vha, MSW(stat));
2091                                 status |= MBX_INTERRUPT;
2092                                 break;
2093                         case 0x12:
2094                                 mb[0] = MSW(stat);
2095                                 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2096                                 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2097                                 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2098                                 qla2x00_async_event(vha, rsp, mb);
2099                                 break;
2100                         case 0x13:
2101                                 qla24xx_process_response_queue(vha, rsp);
2102                                 break;
2103                         default:
2104                                 ql_dbg(ql_dbg_async, vha, 0x5054,
2105                                     "Unrecognized interrupt type (%d).\n",
2106                                     stat & 0xff);
2107                                 break;
2108                         }
2109                 }
2110                 WRT_REG_DWORD(&reg->host_int, 0);
2111         }
2112         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2113         if (!ha->flags.msi_enabled)
2114                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2115
2116 #ifdef QL_DEBUG_LEVEL_17
2117         if (!irq && ha->flags.eeh_busy)
2118                 ql_log(ql_log_warn, vha, 0x503d,
2119                     "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2120                     status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2121 #endif
2122
2123         if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2124             (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2125                 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2126                 complete(&ha->mbx_intr_comp);
2127         }
2128         return IRQ_HANDLED;
2129 }
2130
2131 irqreturn_t
2132 qla82xx_msix_default(int irq, void *dev_id)
2133 {
2134         scsi_qla_host_t *vha;
2135         struct qla_hw_data *ha;
2136         struct rsp_que *rsp;
2137         struct device_reg_82xx __iomem *reg;
2138         int status = 0;
2139         unsigned long flags;
2140         uint32_t stat = 0;
2141         uint16_t mb[4];
2142
2143         rsp = (struct rsp_que *) dev_id;
2144         if (!rsp) {
2145                 printk(KERN_INFO
2146                         "%s(): NULL response queue pointer.\n", __func__);
2147                 return IRQ_NONE;
2148         }
2149         ha = rsp->hw;
2150
2151         reg = &ha->iobase->isp82;
2152
2153         spin_lock_irqsave(&ha->hardware_lock, flags);
2154         vha = pci_get_drvdata(ha->pdev);
2155         do {
2156                 if (RD_REG_DWORD(&reg->host_int)) {
2157                         stat = RD_REG_DWORD(&reg->host_status);
2158
2159                         switch (stat & 0xff) {
2160                         case 0x1:
2161                         case 0x2:
2162                         case 0x10:
2163                         case 0x11:
2164                                 qla82xx_mbx_completion(vha, MSW(stat));
2165                                 status |= MBX_INTERRUPT;
2166                                 break;
2167                         case 0x12:
2168                                 mb[0] = MSW(stat);
2169                                 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2170                                 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2171                                 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2172                                 qla2x00_async_event(vha, rsp, mb);
2173                                 break;
2174                         case 0x13:
2175                                 qla24xx_process_response_queue(vha, rsp);
2176                                 break;
2177                         default:
2178                                 ql_dbg(ql_dbg_async, vha, 0x5041,
2179                                     "Unrecognized interrupt type (%d).\n",
2180                                     stat & 0xff);
2181                                 break;
2182                         }
2183                 }
2184                 WRT_REG_DWORD(&reg->host_int, 0);
2185         } while (0);
2186
2187         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2188
2189 #ifdef QL_DEBUG_LEVEL_17
2190         if (!irq && ha->flags.eeh_busy)
2191                 ql_log(ql_log_warn, vha, 0x5044,
2192                     "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2193                     status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2194 #endif
2195
2196         if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2197                 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2198                         set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2199                         complete(&ha->mbx_intr_comp);
2200         }
2201         return IRQ_HANDLED;
2202 }
2203
2204 irqreturn_t
2205 qla82xx_msix_rsp_q(int irq, void *dev_id)
2206 {
2207         scsi_qla_host_t *vha;
2208         struct qla_hw_data *ha;
2209         struct rsp_que *rsp;
2210         struct device_reg_82xx __iomem *reg;
2211         unsigned long flags;
2212
2213         rsp = (struct rsp_que *) dev_id;
2214         if (!rsp) {
2215                 printk(KERN_INFO
2216                         "%s(): NULL response queue pointer.\n", __func__);
2217                 return IRQ_NONE;
2218         }
2219
2220         ha = rsp->hw;
2221         reg = &ha->iobase->isp82;
2222         spin_lock_irqsave(&ha->hardware_lock, flags);
2223         vha = pci_get_drvdata(ha->pdev);
2224         qla24xx_process_response_queue(vha, rsp);
2225         WRT_REG_DWORD(&reg->host_int, 0);
2226         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2227         return IRQ_HANDLED;
2228 }
2229
2230 void
2231 qla82xx_poll(int irq, void *dev_id)
2232 {
2233         scsi_qla_host_t *vha;
2234         struct qla_hw_data *ha;
2235         struct rsp_que *rsp;
2236         struct device_reg_82xx __iomem *reg;
2237         int status = 0;
2238         uint32_t stat;
2239         uint16_t mb[4];
2240         unsigned long flags;
2241
2242         rsp = (struct rsp_que *) dev_id;
2243         if (!rsp) {
2244                 printk(KERN_INFO
2245                         "%s(): NULL response queue pointer.\n", __func__);
2246                 return;
2247         }
2248         ha = rsp->hw;
2249
2250         reg = &ha->iobase->isp82;
2251         spin_lock_irqsave(&ha->hardware_lock, flags);
2252         vha = pci_get_drvdata(ha->pdev);
2253
2254         if (RD_REG_DWORD(&reg->host_int)) {
2255                 stat = RD_REG_DWORD(&reg->host_status);
2256                 switch (stat & 0xff) {
2257                 case 0x1:
2258                 case 0x2:
2259                 case 0x10:
2260                 case 0x11:
2261                         qla82xx_mbx_completion(vha, MSW(stat));
2262                         status |= MBX_INTERRUPT;
2263                         break;
2264                 case 0x12:
2265                         mb[0] = MSW(stat);
2266                         mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2267                         mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2268                         mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2269                         qla2x00_async_event(vha, rsp, mb);
2270                         break;
2271                 case 0x13:
2272                         qla24xx_process_response_queue(vha, rsp);
2273                         break;
2274                 default:
2275                         ql_dbg(ql_dbg_p3p, vha, 0xb013,
2276                             "Unrecognized interrupt type (%d).\n",
2277                             stat * 0xff);
2278                         break;
2279                 }
2280         }
2281         WRT_REG_DWORD(&reg->host_int, 0);
2282         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2283 }
2284
2285 void
2286 qla82xx_enable_intrs(struct qla_hw_data *ha)
2287 {
2288         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2289         qla82xx_mbx_intr_enable(vha);
2290         spin_lock_irq(&ha->hardware_lock);
2291         qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2292         spin_unlock_irq(&ha->hardware_lock);
2293         ha->interrupts_on = 1;
2294 }
2295
2296 void
2297 qla82xx_disable_intrs(struct qla_hw_data *ha)
2298 {
2299         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2300         qla82xx_mbx_intr_disable(vha);
2301         spin_lock_irq(&ha->hardware_lock);
2302         qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2303         spin_unlock_irq(&ha->hardware_lock);
2304         ha->interrupts_on = 0;
2305 }
2306
2307 void qla82xx_init_flags(struct qla_hw_data *ha)
2308 {
2309         struct qla82xx_legacy_intr_set *nx_legacy_intr;
2310
2311         /* ISP 8021 initializations */
2312         rwlock_init(&ha->hw_lock);
2313         ha->qdr_sn_window = -1;
2314         ha->ddr_mn_window = -1;
2315         ha->curr_window = 255;
2316         ha->portnum = PCI_FUNC(ha->pdev->devfn);
2317         nx_legacy_intr = &legacy_intr[ha->portnum];
2318         ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2319         ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2320         ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2321         ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2322 }
2323
2324 inline void
2325 qla82xx_set_drv_active(scsi_qla_host_t *vha)
2326 {
2327         uint32_t drv_active;
2328         struct qla_hw_data *ha = vha->hw;
2329
2330         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2331
2332         /* If reset value is all FF's, initialize DRV_ACTIVE */
2333         if (drv_active == 0xffffffff) {
2334                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2335                         QLA82XX_DRV_NOT_ACTIVE);
2336                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2337         }
2338         drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2339         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2340 }
2341
2342 inline void
2343 qla82xx_clear_drv_active(struct qla_hw_data *ha)
2344 {
2345         uint32_t drv_active;
2346
2347         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2348         drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2349         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2350 }
2351
2352 static inline int
2353 qla82xx_need_reset(struct qla_hw_data *ha)
2354 {
2355         uint32_t drv_state;
2356         int rval;
2357
2358         if (ha->flags.isp82xx_reset_owner)
2359                 return 1;
2360         else {
2361                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2362                 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2363                 return rval;
2364         }
2365 }
2366
2367 static inline void
2368 qla82xx_set_rst_ready(struct qla_hw_data *ha)
2369 {
2370         uint32_t drv_state;
2371         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2372
2373         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2374
2375         /* If reset value is all FF's, initialize DRV_STATE */
2376         if (drv_state == 0xffffffff) {
2377                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2378                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2379         }
2380         drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2381         ql_dbg(ql_dbg_init, vha, 0x00bb,
2382             "drv_state = 0x%08x.\n", drv_state);
2383         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2384 }
2385
2386 static inline void
2387 qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2388 {
2389         uint32_t drv_state;
2390
2391         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2392         drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2393         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2394 }
2395
2396 static inline void
2397 qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2398 {
2399         uint32_t qsnt_state;
2400
2401         qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2402         qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2403         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2404 }
2405
2406 void
2407 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2408 {
2409         struct qla_hw_data *ha = vha->hw;
2410         uint32_t qsnt_state;
2411
2412         qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2413         qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2414         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2415 }
2416
2417 static int
2418 qla82xx_load_fw(scsi_qla_host_t *vha)
2419 {
2420         int rst;
2421         struct fw_blob *blob;
2422         struct qla_hw_data *ha = vha->hw;
2423
2424         if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2425                 ql_log(ql_log_fatal, vha, 0x009f,
2426                     "Error during CRB initialization.\n");
2427                 return QLA_FUNCTION_FAILED;
2428         }
2429         udelay(500);
2430
2431         /* Bring QM and CAMRAM out of reset */
2432         rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2433         rst &= ~((1 << 28) | (1 << 24));
2434         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2435
2436         /*
2437          * FW Load priority:
2438          * 1) Operational firmware residing in flash.
2439          * 2) Firmware via request-firmware interface (.bin file).
2440          */
2441         if (ql2xfwloadbin == 2)
2442                 goto try_blob_fw;
2443
2444         ql_log(ql_log_info, vha, 0x00a0,
2445             "Attempting to load firmware from flash.\n");
2446
2447         if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2448                 ql_log(ql_log_info, vha, 0x00a1,
2449                     "Firmware loaded successully from flash.\n");
2450                 return QLA_SUCCESS;
2451         } else {
2452                 ql_log(ql_log_warn, vha, 0x0108,
2453                     "Firmware load from flash failed.\n");
2454         }
2455
2456 try_blob_fw:
2457         ql_log(ql_log_info, vha, 0x00a2,
2458             "Attempting to load firmware from blob.\n");
2459
2460         /* Load firmware blob. */
2461         blob = ha->hablob = qla2x00_request_firmware(vha);
2462         if (!blob) {
2463                 ql_log(ql_log_fatal, vha, 0x00a3,
2464                     "Firmware image not preset.\n");
2465                 goto fw_load_failed;
2466         }
2467
2468         /* Validating firmware blob */
2469         if (qla82xx_validate_firmware_blob(vha,
2470                 QLA82XX_FLASH_ROMIMAGE)) {
2471                 /* Fallback to URI format */
2472                 if (qla82xx_validate_firmware_blob(vha,
2473                         QLA82XX_UNIFIED_ROMIMAGE)) {
2474                         ql_log(ql_log_fatal, vha, 0x00a4,
2475                             "No valid firmware image found.\n");
2476                         return QLA_FUNCTION_FAILED;
2477                 }
2478         }
2479
2480         if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2481                 ql_log(ql_log_info, vha, 0x00a5,
2482                     "Firmware loaded successfully from binary blob.\n");
2483                 return QLA_SUCCESS;
2484         } else {
2485                 ql_log(ql_log_fatal, vha, 0x00a6,
2486                     "Firmware load failed for binary blob.\n");
2487                 blob->fw = NULL;
2488                 blob = NULL;
2489                 goto fw_load_failed;
2490         }
2491         return QLA_SUCCESS;
2492
2493 fw_load_failed:
2494         return QLA_FUNCTION_FAILED;
2495 }
2496
2497 int
2498 qla82xx_start_firmware(scsi_qla_host_t *vha)
2499 {
2500         int           pcie_cap;
2501         uint16_t      lnk;
2502         struct qla_hw_data *ha = vha->hw;
2503
2504         /* scrub dma mask expansion register */
2505         qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2506
2507         /* Put both the PEG CMD and RCV PEG to default state
2508          * of 0 before resetting the hardware
2509          */
2510         qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2511         qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2512
2513         /* Overwrite stale initialization register values */
2514         qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2515         qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2516
2517         if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2518                 ql_log(ql_log_fatal, vha, 0x00a7,
2519                     "Error trying to start fw.\n");
2520                 return QLA_FUNCTION_FAILED;
2521         }
2522
2523         /* Handshake with the card before we register the devices. */
2524         if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2525                 ql_log(ql_log_fatal, vha, 0x00aa,
2526                     "Error during card handshake.\n");
2527                 return QLA_FUNCTION_FAILED;
2528         }
2529
2530         /* Negotiated Link width */
2531         pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
2532         pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
2533         ha->link_width = (lnk >> 4) & 0x3f;
2534
2535         /* Synchronize with Receive peg */
2536         return qla82xx_check_rcvpeg_state(ha);
2537 }
2538
2539 static uint32_t *
2540 qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2541         uint32_t length)
2542 {
2543         uint32_t i;
2544         uint32_t val;
2545         struct qla_hw_data *ha = vha->hw;
2546
2547         /* Dword reads to flash. */
2548         for (i = 0; i < length/4; i++, faddr += 4) {
2549                 if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2550                         ql_log(ql_log_warn, vha, 0x0106,
2551                             "Do ROM fast read failed.\n");
2552                         goto done_read;
2553                 }
2554                 dwptr[i] = __constant_cpu_to_le32(val);
2555         }
2556 done_read:
2557         return dwptr;
2558 }
2559
2560 static int
2561 qla82xx_unprotect_flash(struct qla_hw_data *ha)
2562 {
2563         int ret;
2564         uint32_t val;
2565         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2566
2567         ret = ql82xx_rom_lock_d(ha);
2568         if (ret < 0) {
2569                 ql_log(ql_log_warn, vha, 0xb014,
2570                     "ROM Lock failed.\n");
2571                 return ret;
2572         }
2573
2574         ret = qla82xx_read_status_reg(ha, &val);
2575         if (ret < 0)
2576                 goto done_unprotect;
2577
2578         val &= ~(BLOCK_PROTECT_BITS << 2);
2579         ret = qla82xx_write_status_reg(ha, val);
2580         if (ret < 0) {
2581                 val |= (BLOCK_PROTECT_BITS << 2);
2582                 qla82xx_write_status_reg(ha, val);
2583         }
2584
2585         if (qla82xx_write_disable_flash(ha) != 0)
2586                 ql_log(ql_log_warn, vha, 0xb015,
2587                     "Write disable failed.\n");
2588
2589 done_unprotect:
2590         qla82xx_rom_unlock(ha);
2591         return ret;
2592 }
2593
2594 static int
2595 qla82xx_protect_flash(struct qla_hw_data *ha)
2596 {
2597         int ret;
2598         uint32_t val;
2599         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2600
2601         ret = ql82xx_rom_lock_d(ha);
2602         if (ret < 0) {
2603                 ql_log(ql_log_warn, vha, 0xb016,
2604                     "ROM Lock failed.\n");
2605                 return ret;
2606         }
2607
2608         ret = qla82xx_read_status_reg(ha, &val);
2609         if (ret < 0)
2610                 goto done_protect;
2611
2612         val |= (BLOCK_PROTECT_BITS << 2);
2613         /* LOCK all sectors */
2614         ret = qla82xx_write_status_reg(ha, val);
2615         if (ret < 0)
2616                 ql_log(ql_log_warn, vha, 0xb017,
2617                     "Write status register failed.\n");
2618
2619         if (qla82xx_write_disable_flash(ha) != 0)
2620                 ql_log(ql_log_warn, vha, 0xb018,
2621                     "Write disable failed.\n");
2622 done_protect:
2623         qla82xx_rom_unlock(ha);
2624         return ret;
2625 }
2626
2627 static int
2628 qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2629 {
2630         int ret = 0;
2631         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2632
2633         ret = ql82xx_rom_lock_d(ha);
2634         if (ret < 0) {
2635                 ql_log(ql_log_warn, vha, 0xb019,
2636                     "ROM Lock failed.\n");
2637                 return ret;
2638         }
2639
2640         qla82xx_flash_set_write_enable(ha);
2641         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2642         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2643         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2644
2645         if (qla82xx_wait_rom_done(ha)) {
2646                 ql_log(ql_log_warn, vha, 0xb01a,
2647                     "Error waiting for rom done.\n");
2648                 ret = -1;
2649                 goto done;
2650         }
2651         ret = qla82xx_flash_wait_write_finish(ha);
2652 done:
2653         qla82xx_rom_unlock(ha);
2654         return ret;
2655 }
2656
2657 /*
2658  * Address and length are byte address
2659  */
2660 uint8_t *
2661 qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2662         uint32_t offset, uint32_t length)
2663 {
2664         scsi_block_requests(vha->host);
2665         qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2666         scsi_unblock_requests(vha->host);
2667         return buf;
2668 }
2669
2670 static int
2671 qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2672         uint32_t faddr, uint32_t dwords)
2673 {
2674         int ret;
2675         uint32_t liter;
2676         uint32_t sec_mask, rest_addr;
2677         dma_addr_t optrom_dma;
2678         void *optrom = NULL;
2679         int page_mode = 0;
2680         struct qla_hw_data *ha = vha->hw;
2681
2682         ret = -1;
2683
2684         /* Prepare burst-capable write on supported ISPs. */
2685         if (page_mode && !(faddr & 0xfff) &&
2686             dwords > OPTROM_BURST_DWORDS) {
2687                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2688                     &optrom_dma, GFP_KERNEL);
2689                 if (!optrom) {
2690                         ql_log(ql_log_warn, vha, 0xb01b,
2691                             "Unable to allocate memory "
2692                             "for optron burst write (%x KB).\n",
2693                             OPTROM_BURST_SIZE / 1024);
2694                 }
2695         }
2696
2697         rest_addr = ha->fdt_block_size - 1;
2698         sec_mask = ~rest_addr;
2699
2700         ret = qla82xx_unprotect_flash(ha);
2701         if (ret) {
2702                 ql_log(ql_log_warn, vha, 0xb01c,
2703                     "Unable to unprotect flash for update.\n");
2704                 goto write_done;
2705         }
2706
2707         for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2708                 /* Are we at the beginning of a sector? */
2709                 if ((faddr & rest_addr) == 0) {
2710
2711                         ret = qla82xx_erase_sector(ha, faddr);
2712                         if (ret) {
2713                                 ql_log(ql_log_warn, vha, 0xb01d,
2714                                     "Unable to erase sector: address=%x.\n",
2715                                     faddr);
2716                                 break;
2717                         }
2718                 }
2719
2720                 /* Go with burst-write. */
2721                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2722                         /* Copy data to DMA'ble buffer. */
2723                         memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2724
2725                         ret = qla2x00_load_ram(vha, optrom_dma,
2726                             (ha->flash_data_off | faddr),
2727                             OPTROM_BURST_DWORDS);
2728                         if (ret != QLA_SUCCESS) {
2729                                 ql_log(ql_log_warn, vha, 0xb01e,
2730                                     "Unable to burst-write optrom segment "
2731                                     "(%x/%x/%llx).\n", ret,
2732                                     (ha->flash_data_off | faddr),
2733                                     (unsigned long long)optrom_dma);
2734                                 ql_log(ql_log_warn, vha, 0xb01f,
2735                                     "Reverting to slow-write.\n");
2736
2737                                 dma_free_coherent(&ha->pdev->dev,
2738                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
2739                                 optrom = NULL;
2740                         } else {
2741                                 liter += OPTROM_BURST_DWORDS - 1;
2742                                 faddr += OPTROM_BURST_DWORDS - 1;
2743                                 dwptr += OPTROM_BURST_DWORDS - 1;
2744                                 continue;
2745                         }
2746                 }
2747
2748                 ret = qla82xx_write_flash_dword(ha, faddr,
2749                     cpu_to_le32(*dwptr));
2750                 if (ret) {
2751                         ql_dbg(ql_dbg_p3p, vha, 0xb020,
2752                             "Unable to program flash address=%x data=%x.\n",
2753                             faddr, *dwptr);
2754                         break;
2755                 }
2756         }
2757
2758         ret = qla82xx_protect_flash(ha);
2759         if (ret)
2760                 ql_log(ql_log_warn, vha, 0xb021,
2761                     "Unable to protect flash after update.\n");
2762 write_done:
2763         if (optrom)
2764                 dma_free_coherent(&ha->pdev->dev,
2765                     OPTROM_BURST_SIZE, optrom, optrom_dma);
2766         return ret;
2767 }
2768
2769 int
2770 qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2771         uint32_t offset, uint32_t length)
2772 {
2773         int rval;
2774
2775         /* Suspend HBA. */
2776         scsi_block_requests(vha->host);
2777         rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
2778                 length >> 2);
2779         scsi_unblock_requests(vha->host);
2780
2781         /* Convert return ISP82xx to generic */
2782         if (rval)
2783                 rval = QLA_FUNCTION_FAILED;
2784         else
2785                 rval = QLA_SUCCESS;
2786         return rval;
2787 }
2788
2789 void
2790 qla82xx_start_iocbs(scsi_qla_host_t *vha)
2791 {
2792         struct qla_hw_data *ha = vha->hw;
2793         struct req_que *req = ha->req_q_map[0];
2794         struct device_reg_82xx __iomem *reg;
2795         uint32_t dbval;
2796
2797         /* Adjust ring index. */
2798         req->ring_index++;
2799         if (req->ring_index == req->length) {
2800                 req->ring_index = 0;
2801                 req->ring_ptr = req->ring;
2802         } else
2803                 req->ring_ptr++;
2804
2805         reg = &ha->iobase->isp82;
2806         dbval = 0x04 | (ha->portnum << 5);
2807
2808         dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2809         if (ql2xdbwr)
2810                 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2811         else {
2812                 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
2813                 wmb();
2814                 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2815                         WRT_REG_DWORD((unsigned long  __iomem *)ha->nxdb_wr_ptr,
2816                                 dbval);
2817                         wmb();
2818                 }
2819         }
2820 }
2821
2822 void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2823 {
2824         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2825
2826         if (qla82xx_rom_lock(ha))
2827                 /* Someone else is holding the lock. */
2828                 ql_log(ql_log_info, vha, 0xb022,
2829                     "Resetting rom_lock.\n");
2830
2831         /*
2832          * Either we got the lock, or someone
2833          * else died while holding it.
2834          * In either case, unlock.
2835          */
2836         qla82xx_rom_unlock(ha);
2837 }
2838
2839 /*
2840  * qla82xx_device_bootstrap
2841  *    Initialize device, set DEV_READY, start fw
2842  *
2843  * Note:
2844  *      IDC lock must be held upon entry
2845  *
2846  * Return:
2847  *    Success : 0
2848  *    Failed  : 1
2849  */
2850 static int
2851 qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2852 {
2853         int rval = QLA_SUCCESS;
2854         int i, timeout;
2855         uint32_t old_count, count;
2856         struct qla_hw_data *ha = vha->hw;
2857         int need_reset = 0, peg_stuck = 1;
2858
2859         need_reset = qla82xx_need_reset(ha);
2860
2861         old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2862
2863         for (i = 0; i < 10; i++) {
2864                 timeout = msleep_interruptible(200);
2865                 if (timeout) {
2866                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2867                                 QLA82XX_DEV_FAILED);
2868                         return QLA_FUNCTION_FAILED;
2869                 }
2870
2871                 count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2872                 if (count != old_count)
2873                         peg_stuck = 0;
2874         }
2875
2876         if (need_reset) {
2877                 /* We are trying to perform a recovery here. */
2878                 if (peg_stuck)
2879                         qla82xx_rom_lock_recovery(ha);
2880                 goto dev_initialize;
2881         } else  {
2882                 /* Start of day for this ha context. */
2883                 if (peg_stuck) {
2884                         /* Either we are the first or recovery in progress. */
2885                         qla82xx_rom_lock_recovery(ha);
2886                         goto dev_initialize;
2887                 } else
2888                         /* Firmware already running. */
2889                         goto dev_ready;
2890         }
2891
2892         return rval;
2893
2894 dev_initialize:
2895         /* set to DEV_INITIALIZING */
2896         ql_log(ql_log_info, vha, 0x009e,
2897             "HW State: INITIALIZING.\n");
2898         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
2899
2900         /* Driver that sets device state to initializating sets IDC version */
2901         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
2902
2903         qla82xx_idc_unlock(ha);
2904         rval = qla82xx_start_firmware(vha);
2905         qla82xx_idc_lock(ha);
2906
2907         if (rval != QLA_SUCCESS) {
2908                 ql_log(ql_log_fatal, vha, 0x00ad,
2909                     "HW State: FAILED.\n");
2910                 qla82xx_clear_drv_active(ha);
2911                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
2912                 return rval;
2913         }
2914
2915 dev_ready:
2916         ql_log(ql_log_info, vha, 0x00ae,
2917             "HW State: READY.\n");
2918         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
2919
2920         return QLA_SUCCESS;
2921 }
2922
2923 /*
2924 * qla82xx_need_qsnt_handler
2925 *    Code to start quiescence sequence
2926 *
2927 * Note:
2928 *      IDC lock must be held upon entry
2929 *
2930 * Return: void
2931 */
2932
2933 static void
2934 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2935 {
2936         struct qla_hw_data *ha = vha->hw;
2937         uint32_t dev_state, drv_state, drv_active;
2938         unsigned long reset_timeout;
2939
2940         if (vha->flags.online) {
2941                 /*Block any further I/O and wait for pending cmnds to complete*/
2942                 qla82xx_quiescent_state_cleanup(vha);
2943         }
2944
2945         /* Set the quiescence ready bit */
2946         qla82xx_set_qsnt_ready(ha);
2947
2948         /*wait for 30 secs for other functions to ack */
2949         reset_timeout = jiffies + (30 * HZ);
2950
2951         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2952         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2953         /* Its 2 that is written when qsnt is acked, moving one bit */
2954         drv_active = drv_active << 0x01;
2955
2956         while (drv_state != drv_active) {
2957
2958                 if (time_after_eq(jiffies, reset_timeout)) {
2959                         /* quiescence timeout, other functions didn't ack
2960                          * changing the state to DEV_READY
2961                          */
2962                         ql_log(ql_log_info, vha, 0xb023,
2963                             "%s : QUIESCENT TIMEOUT.\n", QLA2XXX_DRIVER_NAME);
2964                         ql_log(ql_log_info, vha, 0xb024,
2965                             "DRV_ACTIVE:%d DRV_STATE:%d.\n",
2966                             drv_active, drv_state);
2967                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2968                             QLA82XX_DEV_READY);
2969                         ql_log(ql_log_info, vha, 0xb025,
2970                             "HW State: DEV_READY.\n");
2971                         qla82xx_idc_unlock(ha);
2972                         qla2x00_perform_loop_resync(vha);
2973                         qla82xx_idc_lock(ha);
2974
2975                         qla82xx_clear_qsnt_ready(vha);
2976                         return;
2977                 }
2978
2979                 qla82xx_idc_unlock(ha);
2980                 msleep(1000);
2981                 qla82xx_idc_lock(ha);
2982
2983                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2984                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2985                 drv_active = drv_active << 0x01;
2986         }
2987         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2988         /* everyone acked so set the state to DEV_QUIESCENCE */
2989         if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
2990                 ql_log(ql_log_info, vha, 0xb026,
2991                     "HW State: DEV_QUIESCENT.\n");
2992                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
2993         }
2994 }
2995
2996 /*
2997 * qla82xx_wait_for_state_change
2998 *    Wait for device state to change from given current state
2999 *
3000 * Note:
3001 *     IDC lock must not be held upon entry
3002 *
3003 * Return:
3004 *    Changed device state.
3005 */
3006 uint32_t
3007 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
3008 {
3009         struct qla_hw_data *ha = vha->hw;
3010         uint32_t dev_state;
3011
3012         do {
3013                 msleep(1000);
3014                 qla82xx_idc_lock(ha);
3015                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3016                 qla82xx_idc_unlock(ha);
3017         } while (dev_state == curr_state);
3018
3019         return dev_state;
3020 }
3021
3022 static void
3023 qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
3024 {
3025         struct qla_hw_data *ha = vha->hw;
3026
3027         /* Disable the board */
3028         ql_log(ql_log_fatal, vha, 0x00b8,
3029             "Disabling the board.\n");
3030
3031         qla82xx_idc_lock(ha);
3032         qla82xx_clear_drv_active(ha);
3033         qla82xx_idc_unlock(ha);
3034
3035         /* Set DEV_FAILED flag to disable timer */
3036         vha->device_flags |= DFLG_DEV_FAILED;
3037         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3038         qla2x00_mark_all_devices_lost(vha, 0);
3039         vha->flags.online = 0;
3040         vha->flags.init_done = 0;
3041 }
3042
3043 /*
3044  * qla82xx_need_reset_handler
3045  *    Code to start reset sequence
3046  *
3047  * Note:
3048  *      IDC lock must be held upon entry
3049  *
3050  * Return:
3051  *    Success : 0
3052  *    Failed  : 1
3053  */
3054 static void
3055 qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3056 {
3057         uint32_t dev_state, drv_state, drv_active;
3058         uint32_t active_mask = 0;
3059         unsigned long reset_timeout;
3060         struct qla_hw_data *ha = vha->hw;
3061         struct req_que *req = ha->req_q_map[0];
3062
3063         if (vha->flags.online) {
3064                 qla82xx_idc_unlock(ha);
3065                 qla2x00_abort_isp_cleanup(vha);
3066                 ha->isp_ops->get_flash_version(vha, req->ring);
3067                 ha->isp_ops->nvram_config(vha);
3068                 qla82xx_idc_lock(ha);
3069         }
3070
3071         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3072         if (!ha->flags.isp82xx_reset_owner) {
3073                 ql_dbg(ql_dbg_p3p, vha, 0xb028,
3074                     "reset_acknowledged by 0x%x\n", ha->portnum);
3075                 qla82xx_set_rst_ready(ha);
3076         } else {
3077                 active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3078                 drv_active &= active_mask;
3079                 ql_dbg(ql_dbg_p3p, vha, 0xb029,
3080                     "active_mask: 0x%08x\n", active_mask);
3081         }
3082
3083         /* wait for 10 seconds for reset ack from all functions */
3084         reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3085
3086         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3087         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3088         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3089
3090         ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3091             "drv_state: 0x%08x, drv_active: 0x%08x, "
3092             "dev_state: 0x%08x, active_mask: 0x%08x\n",
3093             drv_state, drv_active, dev_state, active_mask);
3094
3095         while (drv_state != drv_active &&
3096             dev_state != QLA82XX_DEV_INITIALIZING) {
3097                 if (time_after_eq(jiffies, reset_timeout)) {
3098                         ql_log(ql_log_warn, vha, 0x00b5,
3099                             "Reset timeout.\n");
3100                         break;
3101                 }
3102                 qla82xx_idc_unlock(ha);
3103                 msleep(1000);
3104                 qla82xx_idc_lock(ha);
3105                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3106                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3107                 if (ha->flags.isp82xx_reset_owner)
3108                         drv_active &= active_mask;
3109                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3110         }
3111
3112         ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3113             "drv_state: 0x%08x, drv_active: 0x%08x, "
3114             "dev_state: 0x%08x, active_mask: 0x%08x\n",
3115             drv_state, drv_active, dev_state, active_mask);
3116
3117         ql_log(ql_log_info, vha, 0x00b6,
3118             "Device state is 0x%x = %s.\n",
3119             dev_state,
3120             dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3121
3122         /* Force to DEV_COLD unless someone else is starting a reset */
3123         if (dev_state != QLA82XX_DEV_INITIALIZING &&
3124             dev_state != QLA82XX_DEV_COLD) {
3125                 ql_log(ql_log_info, vha, 0x00b7,
3126                     "HW State: COLD/RE-INIT.\n");
3127                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
3128                 if (ql2xmdenable) {
3129                         if (qla82xx_md_collect(vha))
3130                                 ql_log(ql_log_warn, vha, 0xb02c,
3131                                     "Not able to collect minidump.\n");
3132                 } else
3133                         ql_log(ql_log_warn, vha, 0xb04f,
3134                             "Minidump disabled.\n");
3135         }
3136 }
3137
3138 int
3139 qla82xx_check_md_needed(scsi_qla_host_t *vha)
3140 {
3141         struct qla_hw_data *ha = vha->hw;
3142         uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3143         int rval = QLA_SUCCESS;
3144
3145         fw_major_version = ha->fw_major_version;
3146         fw_minor_version = ha->fw_minor_version;
3147         fw_subminor_version = ha->fw_subminor_version;
3148
3149         rval = qla2x00_get_fw_version(vha);
3150         if (rval != QLA_SUCCESS)
3151                 return rval;
3152
3153         if (ql2xmdenable) {
3154                 if (!ha->fw_dumped) {
3155                         if (fw_major_version != ha->fw_major_version ||
3156                             fw_minor_version != ha->fw_minor_version ||
3157                             fw_subminor_version != ha->fw_subminor_version) {
3158                                 ql_log(ql_log_info, vha, 0xb02d,
3159                                     "Firmware version differs "
3160                                     "Previous version: %d:%d:%d - "
3161                                     "New version: %d:%d:%d\n",
3162                                     ha->fw_major_version,
3163                                     ha->fw_minor_version,
3164                                     ha->fw_subminor_version,
3165                                     fw_major_version, fw_minor_version,
3166                                     fw_subminor_version);
3167                                 /* Release MiniDump resources */
3168                                 qla82xx_md_free(vha);
3169                                 /* ALlocate MiniDump resources */
3170                                 qla82xx_md_prep(vha);
3171                         }
3172                 } else
3173                         ql_log(ql_log_info, vha, 0xb02e,
3174                             "Firmware dump available to retrieve\n");
3175         }
3176         return rval;
3177 }
3178
3179
3180 int
3181 qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3182 {
3183         uint32_t fw_heartbeat_counter;
3184         int status = 0;
3185
3186         fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3187                 QLA82XX_PEG_ALIVE_COUNTER);
3188         /* all 0xff, assume AER/EEH in progress, ignore */
3189         if (fw_heartbeat_counter == 0xffffffff) {
3190                 ql_dbg(ql_dbg_timer, vha, 0x6003,
3191                     "FW heartbeat counter is 0xffffffff, "
3192                     "returning status=%d.\n", status);
3193                 return status;
3194         }
3195         if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3196                 vha->seconds_since_last_heartbeat++;
3197                 /* FW not alive after 2 seconds */
3198                 if (vha->seconds_since_last_heartbeat == 2) {
3199                         vha->seconds_since_last_heartbeat = 0;
3200                         status = 1;
3201                 }
3202         } else
3203                 vha->seconds_since_last_heartbeat = 0;
3204         vha->fw_heartbeat_counter = fw_heartbeat_counter;
3205         if (status)
3206                 ql_dbg(ql_dbg_timer, vha, 0x6004,
3207                     "Returning status=%d.\n", status);
3208         return status;
3209 }
3210
3211 /*
3212  * qla82xx_device_state_handler
3213  *      Main state handler
3214  *
3215  * Note:
3216  *      IDC lock must be held upon entry
3217  *
3218  * Return:
3219  *    Success : 0
3220  *    Failed  : 1
3221  */
3222 int
3223 qla82xx_device_state_handler(scsi_qla_host_t *vha)
3224 {
3225         uint32_t dev_state;
3226         uint32_t old_dev_state;
3227         int rval = QLA_SUCCESS;
3228         unsigned long dev_init_timeout;
3229         struct qla_hw_data *ha = vha->hw;
3230         int loopcount = 0;
3231
3232         qla82xx_idc_lock(ha);
3233         if (!vha->flags.init_done)
3234                 qla82xx_set_drv_active(vha);
3235
3236         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3237         old_dev_state = dev_state;
3238         ql_log(ql_log_info, vha, 0x009b,
3239             "Device state is 0x%x = %s.\n",
3240             dev_state,
3241             dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3242
3243         /* wait for 30 seconds for device to go ready */
3244         dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3245
3246         while (1) {
3247
3248                 if (time_after_eq(jiffies, dev_init_timeout)) {
3249                         ql_log(ql_log_fatal, vha, 0x009c,
3250                             "Device init failed.\n");
3251                         rval = QLA_FUNCTION_FAILED;
3252                         break;
3253                 }
3254                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3255                 if (old_dev_state != dev_state) {
3256                         loopcount = 0;
3257                         old_dev_state = dev_state;
3258                 }
3259                 if (loopcount < 5) {
3260                         ql_log(ql_log_info, vha, 0x009d,
3261                             "Device state is 0x%x = %s.\n",
3262                             dev_state,
3263                             dev_state < MAX_STATES ? qdev_state(dev_state) :
3264                             "Unknown");
3265                 }
3266
3267                 switch (dev_state) {
3268                 case QLA82XX_DEV_READY:
3269                         ha->flags.isp82xx_reset_owner = 0;
3270                         goto exit;
3271                 case QLA82XX_DEV_COLD:
3272                         rval = qla82xx_device_bootstrap(vha);
3273                         break;
3274                 case QLA82XX_DEV_INITIALIZING:
3275                         qla82xx_idc_unlock(ha);
3276                         msleep(1000);
3277                         qla82xx_idc_lock(ha);
3278                         break;
3279                 case QLA82XX_DEV_NEED_RESET:
3280                         if (!ql2xdontresethba)
3281                                 qla82xx_need_reset_handler(vha);
3282                         else {
3283                                 qla82xx_idc_unlock(ha);
3284                                 msleep(1000);
3285                                 qla82xx_idc_lock(ha);
3286                         }
3287                         dev_init_timeout = jiffies +
3288                             (ha->nx_dev_init_timeout * HZ);
3289                         break;
3290                 case QLA82XX_DEV_NEED_QUIESCENT:
3291                         qla82xx_need_qsnt_handler(vha);
3292                         /* Reset timeout value after quiescence handler */
3293                         dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3294                                                          * HZ);
3295                         break;
3296                 case QLA82XX_DEV_QUIESCENT:
3297                         /* Owner will exit and other will wait for the state
3298                          * to get changed
3299                          */
3300                         if (ha->flags.quiesce_owner)
3301                                 goto exit;
3302
3303                         qla82xx_idc_unlock(ha);
3304                         msleep(1000);
3305                         qla82xx_idc_lock(ha);
3306
3307                         /* Reset timeout value after quiescence handler */
3308                         dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3309                                                          * HZ);
3310                         break;
3311                 case QLA82XX_DEV_FAILED:
3312                         qla82xx_dev_failed_handler(vha);
3313                         rval = QLA_FUNCTION_FAILED;
3314                         goto exit;
3315                 default:
3316                         qla82xx_idc_unlock(ha);
3317                         msleep(1000);
3318                         qla82xx_idc_lock(ha);
3319                 }
3320                 loopcount++;
3321         }
3322 exit:
3323         qla82xx_idc_unlock(ha);
3324         return rval;
3325 }
3326
3327 void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3328 {
3329         struct qla_hw_data *ha = vha->hw;
3330
3331         if (ha->flags.mbox_busy) {
3332                 ha->flags.mbox_int = 1;
3333                 ha->flags.mbox_busy = 0;
3334                 ql_log(ql_log_warn, vha, 0x6010,
3335                     "Doing premature completion of mbx command.\n");
3336                 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3337                         complete(&ha->mbx_intr_comp);
3338         }
3339 }
3340
3341 void qla82xx_watchdog(scsi_qla_host_t *vha)
3342 {
3343         uint32_t dev_state, halt_status;
3344         struct qla_hw_data *ha = vha->hw;
3345
3346         /* don't poll if reset is going on */
3347         if (!ha->flags.isp82xx_reset_hdlr_active) {
3348                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3349                 if (dev_state == QLA82XX_DEV_NEED_RESET &&
3350                     !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3351                         ql_log(ql_log_warn, vha, 0x6001,
3352                             "Adapter reset needed.\n");
3353                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3354                         qla2xxx_wake_dpc(vha);
3355                 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
3356                         !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3357                         ql_log(ql_log_warn, vha, 0x6002,
3358                             "Quiescent needed.\n");
3359                         set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3360                         qla2xxx_wake_dpc(vha);
3361                 } else {
3362                         if (qla82xx_check_fw_alive(vha)) {
3363                                 ql_dbg(ql_dbg_timer, vha, 0x6011,
3364                                     "disabling pause transmit on port 0 & 1.\n");
3365                                 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3366                                     CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3367                                 halt_status = qla82xx_rd_32(ha,
3368                                     QLA82XX_PEG_HALT_STATUS1);
3369                                 ql_log(ql_log_info, vha, 0x6005,
3370                                     "dumping hw/fw registers:.\n "
3371                                     " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3372                                     " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3373                                     " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3374                                     " PEG_NET_4_PC: 0x%x.\n", halt_status,
3375                                     qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3376                                     qla82xx_rd_32(ha,
3377                                             QLA82XX_CRB_PEG_NET_0 + 0x3c),
3378                                     qla82xx_rd_32(ha,
3379                                             QLA82XX_CRB_PEG_NET_1 + 0x3c),
3380                                     qla82xx_rd_32(ha,
3381                                             QLA82XX_CRB_PEG_NET_2 + 0x3c),
3382                                     qla82xx_rd_32(ha,
3383                                             QLA82XX_CRB_PEG_NET_3 + 0x3c),
3384                                     qla82xx_rd_32(ha,
3385                                             QLA82XX_CRB_PEG_NET_4 + 0x3c));
3386                                 if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3387                                         ql_log(ql_log_warn, vha, 0xb052,
3388                                             "Firmware aborted with "
3389                                             "error code 0x00006700. Device is "
3390                                             "being reset.\n");
3391                                 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3392                                         set_bit(ISP_UNRECOVERABLE,
3393                                             &vha->dpc_flags);
3394                                 } else {
3395                                         ql_log(ql_log_info, vha, 0x6006,
3396                                             "Detect abort  needed.\n");
3397                                         set_bit(ISP_ABORT_NEEDED,
3398                                             &vha->dpc_flags);
3399                                 }
3400                                 qla2xxx_wake_dpc(vha);
3401                                 ha->flags.isp82xx_fw_hung = 1;
3402                                 ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3403                                 qla82xx_clear_pending_mbx(vha);
3404                         }
3405                 }
3406         }
3407 }
3408
3409 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3410 {
3411         int rval;
3412         rval = qla82xx_device_state_handler(vha);
3413         return rval;
3414 }
3415
3416 void
3417 qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3418 {
3419         struct qla_hw_data *ha = vha->hw;
3420         uint32_t dev_state;
3421
3422         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3423         if (dev_state == QLA82XX_DEV_READY) {
3424                 ql_log(ql_log_info, vha, 0xb02f,
3425                     "HW State: NEED RESET\n");
3426                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3427                         QLA82XX_DEV_NEED_RESET);
3428                 ha->flags.isp82xx_reset_owner = 1;
3429                 ql_dbg(ql_dbg_p3p, vha, 0xb030,
3430                     "reset_owner is 0x%x\n", ha->portnum);
3431         } else
3432                 ql_log(ql_log_info, vha, 0xb031,
3433                     "Device state is 0x%x = %s.\n",
3434                     dev_state,
3435                     dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3436 }
3437
3438 /*
3439  *  qla82xx_abort_isp
3440  *      Resets ISP and aborts all outstanding commands.
3441  *
3442  * Input:
3443  *      ha           = adapter block pointer.
3444  *
3445  * Returns:
3446  *      0 = success
3447  */
3448 int
3449 qla82xx_abort_isp(scsi_qla_host_t *vha)
3450 {
3451         int rval;
3452         struct qla_hw_data *ha = vha->hw;
3453
3454         if (vha->device_flags & DFLG_DEV_FAILED) {
3455                 ql_log(ql_log_warn, vha, 0x8024,
3456                     "Device in failed state, exiting.\n");
3457                 return QLA_SUCCESS;
3458         }
3459         ha->flags.isp82xx_reset_hdlr_active = 1;
3460
3461         qla82xx_idc_lock(ha);
3462         qla82xx_set_reset_owner(vha);
3463         qla82xx_idc_unlock(ha);
3464
3465         rval = qla82xx_device_state_handler(vha);
3466
3467         qla82xx_idc_lock(ha);
3468         qla82xx_clear_rst_ready(ha);
3469         qla82xx_idc_unlock(ha);
3470
3471         if (rval == QLA_SUCCESS) {
3472                 ha->flags.isp82xx_fw_hung = 0;
3473                 ha->flags.isp82xx_reset_hdlr_active = 0;
3474                 qla82xx_restart_isp(vha);
3475         }
3476
3477         if (rval) {
3478                 vha->flags.online = 1;
3479                 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3480                         if (ha->isp_abort_cnt == 0) {
3481                                 ql_log(ql_log_warn, vha, 0x8027,
3482                                     "ISP error recover failed - board "
3483                                     "disabled.\n");
3484                                 /*
3485                                  * The next call disables the board
3486                                  * completely.
3487                                  */
3488                                 ha->isp_ops->reset_adapter(vha);
3489                                 vha->flags.online = 0;
3490                                 clear_bit(ISP_ABORT_RETRY,
3491                                     &vha->dpc_flags);
3492                                 rval = QLA_SUCCESS;
3493                         } else { /* schedule another ISP abort */
3494                                 ha->isp_abort_cnt--;
3495                                 ql_log(ql_log_warn, vha, 0x8036,
3496                                     "ISP abort - retry remaining %d.\n",
3497                                     ha->isp_abort_cnt);
3498                                 rval = QLA_FUNCTION_FAILED;
3499                         }
3500                 } else {
3501                         ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3502                         ql_dbg(ql_dbg_taskm, vha, 0x8029,
3503                             "ISP error recovery - retrying (%d) more times.\n",
3504                             ha->isp_abort_cnt);
3505                         set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3506                         rval = QLA_FUNCTION_FAILED;
3507                 }
3508         }
3509         return rval;
3510 }
3511
3512 /*
3513  *  qla82xx_fcoe_ctx_reset
3514  *      Perform a quick reset and aborts all outstanding commands.
3515  *      This will only perform an FCoE context reset and avoids a full blown
3516  *      chip reset.
3517  *
3518  * Input:
3519  *      ha = adapter block pointer.
3520  *      is_reset_path = flag for identifying the reset path.
3521  *
3522  * Returns:
3523  *      0 = success
3524  */
3525 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3526 {
3527         int rval = QLA_FUNCTION_FAILED;
3528
3529         if (vha->flags.online) {
3530                 /* Abort all outstanding commands, so as to be requeued later */
3531                 qla2x00_abort_isp_cleanup(vha);
3532         }
3533
3534         /* Stop currently executing firmware.
3535          * This will destroy existing FCoE context at the F/W end.
3536          */
3537         qla2x00_try_to_stop_firmware(vha);
3538
3539         /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3540         rval = qla82xx_restart_isp(vha);
3541
3542         return rval;
3543 }
3544
3545 /*
3546  * qla2x00_wait_for_fcoe_ctx_reset
3547  *    Wait till the FCoE context is reset.
3548  *
3549  * Note:
3550  *    Does context switching here.
3551  *    Release SPIN_LOCK (if any) before calling this routine.
3552  *
3553  * Return:
3554  *    Success (fcoe_ctx reset is done) : 0
3555  *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3556  */
3557 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3558 {
3559         int status = QLA_FUNCTION_FAILED;
3560         unsigned long wait_reset;
3561
3562         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3563         while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3564             test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3565             && time_before(jiffies, wait_reset)) {
3566
3567                 set_current_state(TASK_UNINTERRUPTIBLE);
3568                 schedule_timeout(HZ);
3569
3570                 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3571                     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3572                         status = QLA_SUCCESS;
3573                         break;
3574                 }
3575         }
3576         ql_dbg(ql_dbg_p3p, vha, 0xb027,
3577                "%s: status=%d.\n", __func__, status);
3578
3579         return status;
3580 }
3581
3582 void
3583 qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3584 {
3585         int i;
3586         unsigned long flags;
3587         struct qla_hw_data *ha = vha->hw;
3588
3589         /* Check if 82XX firmware is alive or not
3590          * We may have arrived here from NEED_RESET
3591          * detection only
3592          */
3593         if (!ha->flags.isp82xx_fw_hung) {
3594                 for (i = 0; i < 2; i++) {
3595                         msleep(1000);
3596                         if (qla82xx_check_fw_alive(vha)) {
3597                                 ha->flags.isp82xx_fw_hung = 1;
3598                                 qla82xx_clear_pending_mbx(vha);
3599                                 break;
3600                         }
3601                 }
3602         }
3603         ql_dbg(ql_dbg_init, vha, 0x00b0,
3604             "Entered %s fw_hung=%d.\n",
3605             __func__, ha->flags.isp82xx_fw_hung);
3606
3607         /* Abort all commands gracefully if fw NOT hung */
3608         if (!ha->flags.isp82xx_fw_hung) {
3609                 int cnt, que;
3610                 srb_t *sp;
3611                 struct req_que *req;
3612
3613                 spin_lock_irqsave(&ha->hardware_lock, flags);
3614                 for (que = 0; que < ha->max_req_queues; que++) {
3615                         req = ha->req_q_map[que];
3616                         if (!req)
3617                                 continue;
3618                         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3619                                 sp = req->outstanding_cmds[cnt];
3620                                 if (sp) {
3621                                         if (!sp->u.scmd.ctx ||
3622                                             (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3623                                                 spin_unlock_irqrestore(
3624                                                     &ha->hardware_lock, flags);
3625                                                 if (ha->isp_ops->abort_command(sp)) {
3626                                                         ql_log(ql_log_info, vha,
3627                                                             0x00b1,
3628                                                             "mbx abort failed.\n");
3629                                                 } else {
3630                                                         ql_log(ql_log_info, vha,
3631                                                             0x00b2,
3632                                                             "mbx abort success.\n");
3633                                                 }
3634                                                 spin_lock_irqsave(&ha->hardware_lock, flags);
3635                                         }
3636                                 }
3637                         }
3638                 }
3639                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3640
3641                 /* Wait for pending cmds (physical and virtual) to complete */
3642                 if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3643                     WAIT_HOST) == QLA_SUCCESS) {
3644                         ql_dbg(ql_dbg_init, vha, 0x00b3,
3645                             "Done wait for "
3646                             "pending commands.\n");
3647                 }
3648         }
3649 }
3650
3651 /* Minidump related functions */
3652 static int
3653 qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3654         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3655 {
3656         struct qla_hw_data *ha = vha->hw;
3657         struct qla82xx_md_entry_crb *crb_entry;
3658         uint32_t read_value, opcode, poll_time;
3659         uint32_t addr, index, crb_addr;
3660         unsigned long wtime;
3661         struct qla82xx_md_template_hdr *tmplt_hdr;
3662         uint32_t rval = QLA_SUCCESS;
3663         int i;
3664
3665         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3666         crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3667         crb_addr = crb_entry->addr;
3668
3669         for (i = 0; i < crb_entry->op_count; i++) {
3670                 opcode = crb_entry->crb_ctrl.opcode;
3671                 if (opcode & QLA82XX_DBG_OPCODE_WR) {
3672                         qla82xx_md_rw_32(ha, crb_addr,
3673                             crb_entry->value_1, 1);
3674                         opcode &= ~QLA82XX_DBG_OPCODE_WR;
3675                 }
3676
3677                 if (opcode & QLA82XX_DBG_OPCODE_RW) {
3678                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3679                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3680                         opcode &= ~QLA82XX_DBG_OPCODE_RW;
3681                 }
3682
3683                 if (opcode & QLA82XX_DBG_OPCODE_AND) {
3684                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3685                         read_value &= crb_entry->value_2;
3686                         opcode &= ~QLA82XX_DBG_OPCODE_AND;
3687                         if (opcode & QLA82XX_DBG_OPCODE_OR) {
3688                                 read_value |= crb_entry->value_3;
3689                                 opcode &= ~QLA82XX_DBG_OPCODE_OR;
3690                         }
3691                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3692                 }
3693
3694                 if (opcode & QLA82XX_DBG_OPCODE_OR) {
3695                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3696                         read_value |= crb_entry->value_3;
3697                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3698                         opcode &= ~QLA82XX_DBG_OPCODE_OR;
3699                 }
3700
3701                 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3702                         poll_time = crb_entry->crb_strd.poll_timeout;
3703                         wtime = jiffies + poll_time;
3704                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3705
3706                         do {
3707                                 if ((read_value & crb_entry->value_2)
3708                                     == crb_entry->value_1)
3709                                         break;
3710                                 else if (time_after_eq(jiffies, wtime)) {
3711                                         /* capturing dump failed */
3712                                         rval = QLA_FUNCTION_FAILED;
3713                                         break;
3714                                 } else
3715                                         read_value = qla82xx_md_rw_32(ha,
3716                                             crb_addr, 0, 0);
3717                         } while (1);
3718                         opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3719                 }
3720
3721                 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3722                         if (crb_entry->crb_strd.state_index_a) {
3723                                 index = crb_entry->crb_strd.state_index_a;
3724                                 addr = tmplt_hdr->saved_state_array[index];
3725                         } else
3726                                 addr = crb_addr;
3727
3728                         read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3729                         index = crb_entry->crb_ctrl.state_index_v;
3730                         tmplt_hdr->saved_state_array[index] = read_value;
3731                         opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3732                 }
3733
3734                 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3735                         if (crb_entry->crb_strd.state_index_a) {
3736                                 index = crb_entry->crb_strd.state_index_a;
3737                                 addr = tmplt_hdr->saved_state_array[index];
3738                         } else
3739                                 addr = crb_addr;
3740
3741                         if (crb_entry->crb_ctrl.state_index_v) {
3742                                 index = crb_entry->crb_ctrl.state_index_v;
3743                                 read_value =
3744                                     tmplt_hdr->saved_state_array[index];
3745                         } else
3746                                 read_value = crb_entry->value_1;
3747
3748                         qla82xx_md_rw_32(ha, addr, read_value, 1);
3749                         opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3750                 }
3751
3752                 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3753                         index = crb_entry->crb_ctrl.state_index_v;
3754                         read_value = tmplt_hdr->saved_state_array[index];
3755                         read_value <<= crb_entry->crb_ctrl.shl;
3756                         read_value >>= crb_entry->crb_ctrl.shr;
3757                         if (crb_entry->value_2)
3758                                 read_value &= crb_entry->value_2;
3759                         read_value |= crb_entry->value_3;
3760                         read_value += crb_entry->value_1;
3761                         tmplt_hdr->saved_state_array[index] = read_value;
3762                         opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3763                 }
3764                 crb_addr += crb_entry->crb_strd.addr_stride;
3765         }
3766         return rval;
3767 }
3768
3769 static void
3770 qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3771         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3772 {
3773         struct qla_hw_data *ha = vha->hw;
3774         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3775         struct qla82xx_md_entry_rdocm *ocm_hdr;
3776         uint32_t *data_ptr = *d_ptr;
3777
3778         ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3779         r_addr = ocm_hdr->read_addr;
3780         r_stride = ocm_hdr->read_addr_stride;
3781         loop_cnt = ocm_hdr->op_count;
3782
3783         for (i = 0; i < loop_cnt; i++) {
3784                 r_value = RD_REG_DWORD((void *)(r_addr + ha->nx_pcibase));
3785                 *data_ptr++ = cpu_to_le32(r_value);
3786                 r_addr += r_stride;
3787         }
3788         *d_ptr = data_ptr;
3789 }
3790
3791 static void
3792 qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3793         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3794 {
3795         struct qla_hw_data *ha = vha->hw;
3796         uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3797         struct qla82xx_md_entry_mux *mux_hdr;
3798         uint32_t *data_ptr = *d_ptr;
3799
3800         mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3801         r_addr = mux_hdr->read_addr;
3802         s_addr = mux_hdr->select_addr;
3803         s_stride = mux_hdr->select_value_stride;
3804         s_value = mux_hdr->select_value;
3805         loop_cnt = mux_hdr->op_count;
3806
3807         for (i = 0; i < loop_cnt; i++) {
3808                 qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3809                 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3810                 *data_ptr++ = cpu_to_le32(s_value);
3811                 *data_ptr++ = cpu_to_le32(r_value);
3812                 s_value += s_stride;
3813         }
3814         *d_ptr = data_ptr;
3815 }
3816
3817 static void
3818 qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3819         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3820 {
3821         struct qla_hw_data *ha = vha->hw;
3822         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3823         struct qla82xx_md_entry_crb *crb_hdr;
3824         uint32_t *data_ptr = *d_ptr;
3825
3826         crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3827         r_addr = crb_hdr->addr;
3828         r_stride = crb_hdr->crb_strd.addr_stride;
3829         loop_cnt = crb_hdr->op_count;
3830
3831         for (i = 0; i < loop_cnt; i++) {
3832                 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3833                 *data_ptr++ = cpu_to_le32(r_addr);
3834                 *data_ptr++ = cpu_to_le32(r_value);
3835                 r_addr += r_stride;
3836         }
3837         *d_ptr = data_ptr;
3838 }
3839
3840 static int
3841 qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3842         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3843 {
3844         struct qla_hw_data *ha = vha->hw;
3845         uint32_t addr, r_addr, c_addr, t_r_addr;
3846         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3847         unsigned long p_wait, w_time, p_mask;
3848         uint32_t c_value_w, c_value_r;
3849         struct qla82xx_md_entry_cache *cache_hdr;
3850         int rval = QLA_FUNCTION_FAILED;
3851         uint32_t *data_ptr = *d_ptr;
3852
3853         cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3854         loop_count = cache_hdr->op_count;
3855         r_addr = cache_hdr->read_addr;
3856         c_addr = cache_hdr->control_addr;
3857         c_value_w = cache_hdr->cache_ctrl.write_value;
3858
3859         t_r_addr = cache_hdr->tag_reg_addr;
3860         t_value = cache_hdr->addr_ctrl.init_tag_value;
3861         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3862         p_wait = cache_hdr->cache_ctrl.poll_wait;
3863         p_mask = cache_hdr->cache_ctrl.poll_mask;
3864
3865         for (i = 0; i < loop_count; i++) {
3866                 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3867                 if (c_value_w)
3868                         qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3869
3870                 if (p_mask) {
3871                         w_time = jiffies + p_wait;
3872                         do {
3873                                 c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3874                                 if ((c_value_r & p_mask) == 0)
3875                                         break;
3876                                 else if (time_after_eq(jiffies, w_time)) {
3877                                         /* capturing dump failed */
3878                                         ql_dbg(ql_dbg_p3p, vha, 0xb032,
3879                                             "c_value_r: 0x%x, poll_mask: 0x%lx, "
3880                                             "w_time: 0x%lx\n",
3881                                             c_value_r, p_mask, w_time);
3882                                         return rval;
3883                                 }
3884                         } while (1);
3885                 }
3886
3887                 addr = r_addr;
3888                 for (k = 0; k < r_cnt; k++) {
3889                         r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3890                         *data_ptr++ = cpu_to_le32(r_value);
3891                         addr += cache_hdr->read_ctrl.read_addr_stride;
3892                 }
3893                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
3894         }
3895         *d_ptr = data_ptr;
3896         return QLA_SUCCESS;
3897 }
3898
3899 static void
3900 qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3901         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3902 {
3903         struct qla_hw_data *ha = vha->hw;
3904         uint32_t addr, r_addr, c_addr, t_r_addr;
3905         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3906         uint32_t c_value_w;
3907         struct qla82xx_md_entry_cache *cache_hdr;
3908         uint32_t *data_ptr = *d_ptr;
3909
3910         cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3911         loop_count = cache_hdr->op_count;
3912         r_addr = cache_hdr->read_addr;
3913         c_addr = cache_hdr->control_addr;
3914         c_value_w = cache_hdr->cache_ctrl.write_value;
3915
3916         t_r_addr = cache_hdr->tag_reg_addr;
3917         t_value = cache_hdr->addr_ctrl.init_tag_value;
3918         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3919
3920         for (i = 0; i < loop_count; i++) {
3921                 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3922                 qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3923                 addr = r_addr;
3924                 for (k = 0; k < r_cnt; k++) {
3925                         r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3926                         *data_ptr++ = cpu_to_le32(r_value);
3927                         addr += cache_hdr->read_ctrl.read_addr_stride;
3928                 }
3929                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
3930         }
3931         *d_ptr = data_ptr;
3932 }
3933
3934 static void
3935 qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3936         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3937 {
3938         struct qla_hw_data *ha = vha->hw;
3939         uint32_t s_addr, r_addr;
3940         uint32_t r_stride, r_value, r_cnt, qid = 0;
3941         uint32_t i, k, loop_cnt;
3942         struct qla82xx_md_entry_queue *q_hdr;
3943         uint32_t *data_ptr = *d_ptr;
3944
3945         q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3946         s_addr = q_hdr->select_addr;
3947         r_cnt = q_hdr->rd_strd.read_addr_cnt;
3948         r_stride = q_hdr->rd_strd.read_addr_stride;
3949         loop_cnt = q_hdr->op_count;
3950
3951         for (i = 0; i < loop_cnt; i++) {
3952                 qla82xx_md_rw_32(ha, s_addr, qid, 1);
3953                 r_addr = q_hdr->read_addr;
3954                 for (k = 0; k < r_cnt; k++) {
3955                         r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3956                         *data_ptr++ = cpu_to_le32(r_value);
3957                         r_addr += r_stride;
3958                 }
3959                 qid += q_hdr->q_strd.queue_id_stride;
3960         }
3961         *d_ptr = data_ptr;
3962 }
3963
3964 static void
3965 qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
3966         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3967 {
3968         struct qla_hw_data *ha = vha->hw;
3969         uint32_t r_addr, r_value;
3970         uint32_t i, loop_cnt;
3971         struct qla82xx_md_entry_rdrom *rom_hdr;
3972         uint32_t *data_ptr = *d_ptr;
3973
3974         rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
3975         r_addr = rom_hdr->read_addr;
3976         loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
3977
3978         for (i = 0; i < loop_cnt; i++) {
3979                 qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
3980                     (r_addr & 0xFFFF0000), 1);
3981                 r_value = qla82xx_md_rw_32(ha,
3982                     MD_DIRECT_ROM_READ_BASE +
3983                     (r_addr & 0x0000FFFF), 0, 0);
3984                 *data_ptr++ = cpu_to_le32(r_value);
3985                 r_addr += sizeof(uint32_t);
3986         }
3987         *d_ptr = data_ptr;
3988 }
3989
3990 static int
3991 qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
3992         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3993 {
3994         struct qla_hw_data *ha = vha->hw;
3995         uint32_t r_addr, r_value, r_data;
3996         uint32_t i, j, loop_cnt;
3997         struct qla82xx_md_entry_rdmem *m_hdr;
3998         unsigned long flags;
3999         int rval = QLA_FUNCTION_FAILED;
4000         uint32_t *data_ptr = *d_ptr;
4001
4002         m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4003         r_addr = m_hdr->read_addr;
4004         loop_cnt = m_hdr->read_data_size/16;
4005
4006         if (r_addr & 0xf) {
4007                 ql_log(ql_log_warn, vha, 0xb033,
4008                     "Read addr 0x%x not 16 bytes alligned\n", r_addr);
4009                 return rval;
4010         }
4011
4012         if (m_hdr->read_data_size % 16) {
4013                 ql_log(ql_log_warn, vha, 0xb034,
4014                     "Read data[0x%x] not multiple of 16 bytes\n",
4015                     m_hdr->read_data_size);
4016                 return rval;
4017         }
4018
4019         ql_dbg(ql_dbg_p3p, vha, 0xb035,
4020             "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4021             __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4022
4023         write_lock_irqsave(&ha->hw_lock, flags);
4024         for (i = 0; i < loop_cnt; i++) {
4025                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4026                 r_value = 0;
4027                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4028                 r_value = MIU_TA_CTL_ENABLE;
4029                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4030                 r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4031                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4032
4033                 for (j = 0; j < MAX_CTL_CHECK; j++) {
4034                         r_value = qla82xx_md_rw_32(ha,
4035                             MD_MIU_TEST_AGT_CTRL, 0, 0);
4036                         if ((r_value & MIU_TA_CTL_BUSY) == 0)
4037                                 break;
4038                 }
4039
4040                 if (j >= MAX_CTL_CHECK) {
4041                         printk_ratelimited(KERN_ERR
4042                             "failed to read through agent\n");
4043                         write_unlock_irqrestore(&ha->hw_lock, flags);
4044                         return rval;
4045                 }
4046
4047                 for (j = 0; j < 4; j++) {
4048                         r_data = qla82xx_md_rw_32(ha,
4049                             MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4050                         *data_ptr++ = cpu_to_le32(r_data);
4051                 }
4052                 r_addr += 16;
4053         }
4054         write_unlock_irqrestore(&ha->hw_lock, flags);
4055         *d_ptr = data_ptr;
4056         return QLA_SUCCESS;
4057 }
4058
4059 static int
4060 qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4061 {
4062         struct qla_hw_data *ha = vha->hw;
4063         uint64_t chksum = 0;
4064         uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4065         int count = ha->md_template_size/sizeof(uint32_t);
4066
4067         while (count-- > 0)
4068                 chksum += *d_ptr++;
4069         while (chksum >> 32)
4070                 chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4071         return ~chksum;
4072 }
4073
4074 static void
4075 qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4076         qla82xx_md_entry_hdr_t *entry_hdr, int index)
4077 {
4078         entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4079         ql_dbg(ql_dbg_p3p, vha, 0xb036,
4080             "Skipping entry[%d]: "
4081             "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4082             index, entry_hdr->entry_type,
4083             entry_hdr->d_ctrl.entry_capture_mask);
4084 }
4085
4086 int
4087 qla82xx_md_collect(scsi_qla_host_t *vha)
4088 {
4089         struct qla_hw_data *ha = vha->hw;
4090         int no_entry_hdr = 0;
4091         qla82xx_md_entry_hdr_t *entry_hdr;
4092         struct qla82xx_md_template_hdr *tmplt_hdr;
4093         uint32_t *data_ptr;
4094         uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4095         int i = 0, rval = QLA_FUNCTION_FAILED;
4096
4097         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4098         data_ptr = (uint32_t *)ha->md_dump;
4099
4100         if (ha->fw_dumped) {
4101                 ql_log(ql_log_info, vha, 0xb037,
4102                     "Firmware dump available to retrive\n");
4103                 goto md_failed;
4104         }
4105
4106         ha->fw_dumped = 0;
4107
4108         if (!ha->md_tmplt_hdr || !ha->md_dump) {
4109                 ql_log(ql_log_warn, vha, 0xb038,
4110                     "Memory not allocated for minidump capture\n");
4111                 goto md_failed;
4112         }
4113
4114         if (qla82xx_validate_template_chksum(vha)) {
4115                 ql_log(ql_log_info, vha, 0xb039,
4116                     "Template checksum validation error\n");
4117                 goto md_failed;
4118         }
4119
4120         no_entry_hdr = tmplt_hdr->num_of_entries;
4121         ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4122             "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4123
4124         ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4125             "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4126
4127         f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4128
4129         /* Validate whether required debug level is set */
4130         if ((f_capture_mask & 0x3) != 0x3) {
4131                 ql_log(ql_log_warn, vha, 0xb03c,
4132                     "Minimum required capture mask[0x%x] level not set\n",
4133                     f_capture_mask);
4134                 goto md_failed;
4135         }
4136         tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4137
4138         tmplt_hdr->driver_info[0] = vha->host_no;
4139         tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4140             (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4141             QLA_DRIVER_BETA_VER;
4142
4143         total_data_size = ha->md_dump_size;
4144
4145         ql_dbg(ql_log_info, vha, 0xb03d,
4146             "Total minidump data_size 0x%x to be captured\n", total_data_size);
4147
4148         /* Check whether template obtained is valid */
4149         if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4150                 ql_log(ql_log_warn, vha, 0xb04e,
4151                     "Bad template header entry type: 0x%x obtained\n",
4152                     tmplt_hdr->entry_type);
4153                 goto md_failed;
4154         }
4155
4156         entry_hdr = (qla82xx_md_entry_hdr_t *) \
4157             (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4158
4159         /* Walk through the entry headers */
4160         for (i = 0; i < no_entry_hdr; i++) {
4161
4162                 if (data_collected > total_data_size) {
4163                         ql_log(ql_log_warn, vha, 0xb03e,
4164                             "More MiniDump data collected: [0x%x]\n",
4165                             data_collected);
4166                         goto md_failed;
4167                 }
4168
4169                 if (!(entry_hdr->d_ctrl.entry_capture_mask &
4170                     ql2xmdcapmask)) {
4171                         entry_hdr->d_ctrl.driver_flags |=
4172                             QLA82XX_DBG_SKIPPED_FLAG;
4173                         ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4174                             "Skipping entry[%d]: "
4175                             "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4176                             i, entry_hdr->entry_type,
4177                             entry_hdr->d_ctrl.entry_capture_mask);
4178                         goto skip_nxt_entry;
4179                 }
4180
4181                 ql_dbg(ql_dbg_p3p, vha, 0xb040,
4182                     "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4183                     "entry_type: 0x%x, captrue_mask: 0x%x\n",
4184                     __func__, i, data_ptr, entry_hdr,
4185                     entry_hdr->entry_type,
4186                     entry_hdr->d_ctrl.entry_capture_mask);
4187
4188                 ql_dbg(ql_dbg_p3p, vha, 0xb041,
4189                     "Data collected: [0x%x], Dump size left:[0x%x]\n",
4190                     data_collected, (ha->md_dump_size - data_collected));
4191
4192                 /* Decode the entry type and take
4193                  * required action to capture debug data */
4194                 switch (entry_hdr->entry_type) {
4195                 case QLA82XX_RDEND:
4196                         qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4197                         break;
4198                 case QLA82XX_CNTRL:
4199                         rval = qla82xx_minidump_process_control(vha,
4200                             entry_hdr, &data_ptr);
4201                         if (rval != QLA_SUCCESS) {
4202                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4203                                 goto md_failed;
4204                         }
4205                         break;
4206                 case QLA82XX_RDCRB:
4207                         qla82xx_minidump_process_rdcrb(vha,
4208                             entry_hdr, &data_ptr);
4209                         break;
4210                 case QLA82XX_RDMEM:
4211                         rval = qla82xx_minidump_process_rdmem(vha,
4212                             entry_hdr, &data_ptr);
4213                         if (rval != QLA_SUCCESS) {
4214                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4215                                 goto md_failed;
4216                         }
4217                         break;
4218                 case QLA82XX_BOARD:
4219                 case QLA82XX_RDROM:
4220                         qla82xx_minidump_process_rdrom(vha,
4221                             entry_hdr, &data_ptr);
4222                         break;
4223                 case QLA82XX_L2DTG:
4224                 case QLA82XX_L2ITG:
4225                 case QLA82XX_L2DAT:
4226                 case QLA82XX_L2INS:
4227                         rval = qla82xx_minidump_process_l2tag(vha,
4228                             entry_hdr, &data_ptr);
4229                         if (rval != QLA_SUCCESS) {
4230                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4231                                 goto md_failed;
4232                         }
4233                         break;
4234                 case QLA82XX_L1DAT:
4235                 case QLA82XX_L1INS:
4236                         qla82xx_minidump_process_l1cache(vha,
4237                             entry_hdr, &data_ptr);
4238                         break;
4239                 case QLA82XX_RDOCM:
4240                         qla82xx_minidump_process_rdocm(vha,
4241                             entry_hdr, &data_ptr);
4242                         break;
4243                 case QLA82XX_RDMUX:
4244                         qla82xx_minidump_process_rdmux(vha,
4245                             entry_hdr, &data_ptr);
4246                         break;
4247                 case QLA82XX_QUEUE:
4248                         qla82xx_minidump_process_queue(vha,
4249                             entry_hdr, &data_ptr);
4250                         break;
4251                 case QLA82XX_RDNOP:
4252                 default:
4253                         qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4254                         break;
4255                 }
4256
4257                 ql_dbg(ql_dbg_p3p, vha, 0xb042,
4258                     "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4259
4260                 data_collected = (uint8_t *)data_ptr -
4261                     (uint8_t *)ha->md_dump;
4262 skip_nxt_entry:
4263                 entry_hdr = (qla82xx_md_entry_hdr_t *) \
4264                     (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4265         }
4266
4267         if (data_collected != total_data_size) {
4268                 ql_dbg(ql_log_warn, vha, 0xb043,
4269                     "MiniDump data mismatch: Data collected: [0x%x],"
4270                     "total_data_size:[0x%x]\n",
4271                     data_collected, total_data_size);
4272                 goto md_failed;
4273         }
4274
4275         ql_log(ql_log_info, vha, 0xb044,
4276             "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4277             vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4278         ha->fw_dumped = 1;
4279         qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4280
4281 md_failed:
4282         return rval;
4283 }
4284
4285 int
4286 qla82xx_md_alloc(scsi_qla_host_t *vha)
4287 {
4288         struct qla_hw_data *ha = vha->hw;
4289         int i, k;
4290         struct qla82xx_md_template_hdr *tmplt_hdr;
4291
4292         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4293
4294         if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4295                 ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4296                 ql_log(ql_log_info, vha, 0xb045,
4297                     "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4298                     ql2xmdcapmask);
4299         }
4300
4301         for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4302                 if (i & ql2xmdcapmask)
4303                         ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4304         }
4305
4306         if (ha->md_dump) {
4307                 ql_log(ql_log_warn, vha, 0xb046,
4308                     "Firmware dump previously allocated.\n");
4309                 return 1;
4310         }
4311
4312         ha->md_dump = vmalloc(ha->md_dump_size);
4313         if (ha->md_dump == NULL) {
4314                 ql_log(ql_log_warn, vha, 0xb047,
4315                     "Unable to allocate memory for Minidump size "
4316                     "(0x%x).\n", ha->md_dump_size);
4317                 return 1;
4318         }
4319         return 0;
4320 }
4321
4322 void
4323 qla82xx_md_free(scsi_qla_host_t *vha)
4324 {
4325         struct qla_hw_data *ha = vha->hw;
4326
4327         /* Release the template header allocated */
4328         if (ha->md_tmplt_hdr) {
4329                 ql_log(ql_log_info, vha, 0xb048,
4330                     "Free MiniDump template: %p, size (%d KB)\n",
4331                     ha->md_tmplt_hdr, ha->md_template_size / 1024);
4332                 dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4333                     ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4334                 ha->md_tmplt_hdr = 0;
4335         }
4336
4337         /* Release the template data buffer allocated */
4338         if (ha->md_dump) {
4339                 ql_log(ql_log_info, vha, 0xb049,
4340                     "Free MiniDump memory: %p, size (%d KB)\n",
4341                     ha->md_dump, ha->md_dump_size / 1024);
4342                 vfree(ha->md_dump);
4343                 ha->md_dump_size = 0;
4344                 ha->md_dump = 0;
4345         }
4346 }
4347
4348 void
4349 qla82xx_md_prep(scsi_qla_host_t *vha)
4350 {
4351         struct qla_hw_data *ha = vha->hw;
4352         int rval;
4353
4354         /* Get Minidump template size */
4355         rval = qla82xx_md_get_template_size(vha);
4356         if (rval == QLA_SUCCESS) {
4357                 ql_log(ql_log_info, vha, 0xb04a,
4358                     "MiniDump Template size obtained (%d KB)\n",
4359                     ha->md_template_size / 1024);
4360
4361                 /* Get Minidump template */
4362                 rval = qla82xx_md_get_template(vha);
4363                 if (rval == QLA_SUCCESS) {
4364                         ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4365                             "MiniDump Template obtained\n");
4366
4367                         /* Allocate memory for minidump */
4368                         rval = qla82xx_md_alloc(vha);
4369                         if (rval == QLA_SUCCESS)
4370                                 ql_log(ql_log_info, vha, 0xb04c,
4371                                     "MiniDump memory allocated (%d KB)\n",
4372                                     ha->md_dump_size / 1024);
4373                         else {
4374                                 ql_log(ql_log_info, vha, 0xb04d,
4375                                     "Free MiniDump template: %p, size: (%d KB)\n",
4376                                     ha->md_tmplt_hdr,
4377                                     ha->md_template_size / 1024);
4378                                 dma_free_coherent(&ha->pdev->dev,
4379                                     ha->md_template_size,
4380                                     ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4381                                 ha->md_tmplt_hdr = 0;
4382                         }
4383
4384                 }
4385         }
4386 }
4387
4388 int
4389 qla82xx_beacon_on(struct scsi_qla_host *vha)
4390 {
4391
4392         int rval;
4393         struct qla_hw_data *ha = vha->hw;
4394         qla82xx_idc_lock(ha);
4395         rval = qla82xx_mbx_beacon_ctl(vha, 1);
4396
4397         if (rval) {
4398                 ql_log(ql_log_warn, vha, 0xb050,
4399                     "mbx set led config failed in %s\n", __func__);
4400                 goto exit;
4401         }
4402         ha->beacon_blink_led = 1;
4403 exit:
4404         qla82xx_idc_unlock(ha);
4405         return rval;
4406 }
4407
4408 int
4409 qla82xx_beacon_off(struct scsi_qla_host *vha)
4410 {
4411
4412         int rval;
4413         struct qla_hw_data *ha = vha->hw;
4414         qla82xx_idc_lock(ha);
4415         rval = qla82xx_mbx_beacon_ctl(vha, 0);
4416
4417         if (rval) {
4418                 ql_log(ql_log_warn, vha, 0xb051,
4419                     "mbx set led config failed in %s\n", __func__);
4420                 goto exit;
4421         }
4422         ha->beacon_blink_led = 0;
4423 exit:
4424         qla82xx_idc_unlock(ha);
4425         return rval;
4426 }