xref: /linux/drivers/scsi/qla2xxx/qla_nx.c (revision 1f652aa0)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * QLogic Fibre Channel HBA Driver
4  * Copyright (c)  2003-2014 QLogic Corporation
5  */
6 #include "qla_def.h"
7 #include <linux/delay.h>
8 #include <linux/io-64-nonatomic-lo-hi.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 static 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 const int MD_MIU_TEST_AGT_RDDATA[] = {
46 	0x410000A8, 0x410000AC,
47 	0x410000B8, 0x410000BC
48 };
49 
qla82xx_crb_addr_transform_setup(void)50 static void qla82xx_crb_addr_transform_setup(void)
51 {
52 	qla82xx_crb_addr_transform(XDMA);
53 	qla82xx_crb_addr_transform(TIMR);
54 	qla82xx_crb_addr_transform(SRE);
55 	qla82xx_crb_addr_transform(SQN3);
56 	qla82xx_crb_addr_transform(SQN2);
57 	qla82xx_crb_addr_transform(SQN1);
58 	qla82xx_crb_addr_transform(SQN0);
59 	qla82xx_crb_addr_transform(SQS3);
60 	qla82xx_crb_addr_transform(SQS2);
61 	qla82xx_crb_addr_transform(SQS1);
62 	qla82xx_crb_addr_transform(SQS0);
63 	qla82xx_crb_addr_transform(RPMX7);
64 	qla82xx_crb_addr_transform(RPMX6);
65 	qla82xx_crb_addr_transform(RPMX5);
66 	qla82xx_crb_addr_transform(RPMX4);
67 	qla82xx_crb_addr_transform(RPMX3);
68 	qla82xx_crb_addr_transform(RPMX2);
69 	qla82xx_crb_addr_transform(RPMX1);
70 	qla82xx_crb_addr_transform(RPMX0);
71 	qla82xx_crb_addr_transform(ROMUSB);
72 	qla82xx_crb_addr_transform(SN);
73 	qla82xx_crb_addr_transform(QMN);
74 	qla82xx_crb_addr_transform(QMS);
75 	qla82xx_crb_addr_transform(PGNI);
76 	qla82xx_crb_addr_transform(PGND);
77 	qla82xx_crb_addr_transform(PGN3);
78 	qla82xx_crb_addr_transform(PGN2);
79 	qla82xx_crb_addr_transform(PGN1);
80 	qla82xx_crb_addr_transform(PGN0);
81 	qla82xx_crb_addr_transform(PGSI);
82 	qla82xx_crb_addr_transform(PGSD);
83 	qla82xx_crb_addr_transform(PGS3);
84 	qla82xx_crb_addr_transform(PGS2);
85 	qla82xx_crb_addr_transform(PGS1);
86 	qla82xx_crb_addr_transform(PGS0);
87 	qla82xx_crb_addr_transform(PS);
88 	qla82xx_crb_addr_transform(PH);
89 	qla82xx_crb_addr_transform(NIU);
90 	qla82xx_crb_addr_transform(I2Q);
91 	qla82xx_crb_addr_transform(EG);
92 	qla82xx_crb_addr_transform(MN);
93 	qla82xx_crb_addr_transform(MS);
94 	qla82xx_crb_addr_transform(CAS2);
95 	qla82xx_crb_addr_transform(CAS1);
96 	qla82xx_crb_addr_transform(CAS0);
97 	qla82xx_crb_addr_transform(CAM);
98 	qla82xx_crb_addr_transform(C2C1);
99 	qla82xx_crb_addr_transform(C2C0);
100 	qla82xx_crb_addr_transform(SMB);
101 	qla82xx_crb_addr_transform(OCM0);
102 	/*
103 	 * Used only in P3 just define it for P2 also.
104 	 */
105 	qla82xx_crb_addr_transform(I2C0);
106 
107 	qla82xx_crb_table_initialized = 1;
108 }
109 
110 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
111 	{{{0, 0,         0,         0} } },
112 	{{{1, 0x0100000, 0x0102000, 0x120000},
113 	{1, 0x0110000, 0x0120000, 0x130000},
114 	{1, 0x0120000, 0x0122000, 0x124000},
115 	{1, 0x0130000, 0x0132000, 0x126000},
116 	{1, 0x0140000, 0x0142000, 0x128000},
117 	{1, 0x0150000, 0x0152000, 0x12a000},
118 	{1, 0x0160000, 0x0170000, 0x110000},
119 	{1, 0x0170000, 0x0172000, 0x12e000},
120 	{0, 0x0000000, 0x0000000, 0x000000},
121 	{0, 0x0000000, 0x0000000, 0x000000},
122 	{0, 0x0000000, 0x0000000, 0x000000},
123 	{0, 0x0000000, 0x0000000, 0x000000},
124 	{0, 0x0000000, 0x0000000, 0x000000},
125 	{0, 0x0000000, 0x0000000, 0x000000},
126 	{1, 0x01e0000, 0x01e0800, 0x122000},
127 	{0, 0x0000000, 0x0000000, 0x000000} } } ,
128 	{{{1, 0x0200000, 0x0210000, 0x180000} } },
129 	{{{0, 0,         0,         0} } },
130 	{{{1, 0x0400000, 0x0401000, 0x169000} } },
131 	{{{1, 0x0500000, 0x0510000, 0x140000} } },
132 	{{{1, 0x0600000, 0x0610000, 0x1c0000} } },
133 	{{{1, 0x0700000, 0x0704000, 0x1b8000} } },
134 	{{{1, 0x0800000, 0x0802000, 0x170000},
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 	{0, 0x0000000, 0x0000000, 0x000000},
145 	{0, 0x0000000, 0x0000000, 0x000000},
146 	{0, 0x0000000, 0x0000000, 0x000000},
147 	{0, 0x0000000, 0x0000000, 0x000000},
148 	{0, 0x0000000, 0x0000000, 0x000000},
149 	{1, 0x08f0000, 0x08f2000, 0x172000} } },
150 	{{{1, 0x0900000, 0x0902000, 0x174000},
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 	{0, 0x0000000, 0x0000000, 0x000000},
161 	{0, 0x0000000, 0x0000000, 0x000000},
162 	{0, 0x0000000, 0x0000000, 0x000000},
163 	{0, 0x0000000, 0x0000000, 0x000000},
164 	{0, 0x0000000, 0x0000000, 0x000000},
165 	{1, 0x09f0000, 0x09f2000, 0x176000} } },
166 	{{{0, 0x0a00000, 0x0a02000, 0x178000},
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 	{0, 0x0000000, 0x0000000, 0x000000},
177 	{0, 0x0000000, 0x0000000, 0x000000},
178 	{0, 0x0000000, 0x0000000, 0x000000},
179 	{0, 0x0000000, 0x0000000, 0x000000},
180 	{0, 0x0000000, 0x0000000, 0x000000},
181 	{1, 0x0af0000, 0x0af2000, 0x17a000} } },
182 	{{{0, 0x0b00000, 0x0b02000, 0x17c000},
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 	{0, 0x0000000, 0x0000000, 0x000000},
193 	{0, 0x0000000, 0x0000000, 0x000000},
194 	{0, 0x0000000, 0x0000000, 0x000000},
195 	{0, 0x0000000, 0x0000000, 0x000000},
196 	{0, 0x0000000, 0x0000000, 0x000000},
197 	{1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
198 	{{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
199 	{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
200 	{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
201 	{{{1, 0x0f00000, 0x0f01000, 0x164000} } },
202 	{{{0, 0x1000000, 0x1004000, 0x1a8000} } },
203 	{{{1, 0x1100000, 0x1101000, 0x160000} } },
204 	{{{1, 0x1200000, 0x1201000, 0x161000} } },
205 	{{{1, 0x1300000, 0x1301000, 0x162000} } },
206 	{{{1, 0x1400000, 0x1401000, 0x163000} } },
207 	{{{1, 0x1500000, 0x1501000, 0x165000} } },
208 	{{{1, 0x1600000, 0x1601000, 0x166000} } },
209 	{{{0, 0,         0,         0} } },
210 	{{{0, 0,         0,         0} } },
211 	{{{0, 0,         0,         0} } },
212 	{{{0, 0,         0,         0} } },
213 	{{{0, 0,         0,         0} } },
214 	{{{0, 0,         0,         0} } },
215 	{{{1, 0x1d00000, 0x1d10000, 0x190000} } },
216 	{{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
217 	{{{1, 0x1f00000, 0x1f10000, 0x150000} } },
218 	{{{0} } },
219 	{{{1, 0x2100000, 0x2102000, 0x120000},
220 	{1, 0x2110000, 0x2120000, 0x130000},
221 	{1, 0x2120000, 0x2122000, 0x124000},
222 	{1, 0x2130000, 0x2132000, 0x126000},
223 	{1, 0x2140000, 0x2142000, 0x128000},
224 	{1, 0x2150000, 0x2152000, 0x12a000},
225 	{1, 0x2160000, 0x2170000, 0x110000},
226 	{1, 0x2170000, 0x2172000, 0x12e000},
227 	{0, 0x0000000, 0x0000000, 0x000000},
228 	{0, 0x0000000, 0x0000000, 0x000000},
229 	{0, 0x0000000, 0x0000000, 0x000000},
230 	{0, 0x0000000, 0x0000000, 0x000000},
231 	{0, 0x0000000, 0x0000000, 0x000000},
232 	{0, 0x0000000, 0x0000000, 0x000000},
233 	{0, 0x0000000, 0x0000000, 0x000000},
234 	{0, 0x0000000, 0x0000000, 0x000000} } },
235 	{{{1, 0x2200000, 0x2204000, 0x1b0000} } },
236 	{{{0} } },
237 	{{{0} } },
238 	{{{0} } },
239 	{{{0} } },
240 	{{{0} } },
241 	{{{1, 0x2800000, 0x2804000, 0x1a4000} } },
242 	{{{1, 0x2900000, 0x2901000, 0x16b000} } },
243 	{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
244 	{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
245 	{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
246 	{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
247 	{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
248 	{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
249 	{{{1, 0x3000000, 0x3000400, 0x1adc00} } },
250 	{{{0, 0x3100000, 0x3104000, 0x1a8000} } },
251 	{{{1, 0x3200000, 0x3204000, 0x1d4000} } },
252 	{{{1, 0x3300000, 0x3304000, 0x1a0000} } },
253 	{{{0} } },
254 	{{{1, 0x3500000, 0x3500400, 0x1ac000} } },
255 	{{{1, 0x3600000, 0x3600400, 0x1ae000} } },
256 	{{{1, 0x3700000, 0x3700400, 0x1ae400} } },
257 	{{{1, 0x3800000, 0x3804000, 0x1d0000} } },
258 	{{{1, 0x3900000, 0x3904000, 0x1b4000} } },
259 	{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
260 	{{{0} } },
261 	{{{0} } },
262 	{{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
263 	{{{1, 0x3e00000, 0x3e01000, 0x167000} } },
264 	{{{1, 0x3f00000, 0x3f01000, 0x168000} } }
265 };
266 
267 /*
268  * top 12 bits of crb internal address (hub, agent)
269  */
270 static unsigned qla82xx_crb_hub_agt[64] = {
271 	0,
272 	QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
273 	QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
274 	QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
275 	0,
276 	QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
277 	QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
278 	QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
279 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
280 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
281 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
282 	QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
283 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
284 	QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
285 	QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
286 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
287 	QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
288 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
289 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
290 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
291 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
292 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
293 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
294 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
295 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
296 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
297 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
298 	0,
299 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
300 	QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
301 	0,
302 	QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
303 	0,
304 	QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
305 	QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
306 	0,
307 	0,
308 	0,
309 	0,
310 	0,
311 	QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
312 	0,
313 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
314 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
315 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
316 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
317 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
318 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
319 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
320 	QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
321 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
322 	QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
323 	0,
324 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
325 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
326 	QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
327 	QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
328 	0,
329 	QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
330 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
331 	QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
332 	0,
333 	QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
334 	0,
335 };
336 
337 /* Device states */
338 static const char *const q_dev_state[] = {
339 	[QLA8XXX_DEV_UNKNOWN]		= "Unknown",
340 	[QLA8XXX_DEV_COLD]		= "Cold/Re-init",
341 	[QLA8XXX_DEV_INITIALIZING]	= "Initializing",
342 	[QLA8XXX_DEV_READY]		= "Ready",
343 	[QLA8XXX_DEV_NEED_RESET]	= "Need Reset",
344 	[QLA8XXX_DEV_NEED_QUIESCENT]	= "Need Quiescent",
345 	[QLA8XXX_DEV_FAILED]		= "Failed",
346 	[QLA8XXX_DEV_QUIESCENT]		= "Quiescent",
347 };
348 
qdev_state(uint32_t dev_state)349 const char *qdev_state(uint32_t dev_state)
350 {
351 	return (dev_state < MAX_STATES) ? q_dev_state[dev_state] : "Unknown";
352 }
353 
354 /*
355  * In: 'off_in' is offset from CRB space in 128M pci map
356  * Out: 'off_out' is 2M pci map addr
357  * side effect: lock crb window
358  */
359 static void
qla82xx_pci_set_crbwindow_2M(struct qla_hw_data * ha,ulong off_in,void __iomem ** off_out)360 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in,
361 			     void __iomem **off_out)
362 {
363 	u32 win_read;
364 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
365 
366 	ha->crb_win = CRB_HI(off_in);
367 	writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase);
368 
369 	/* Read back value to make sure write has gone through before trying
370 	 * to use it.
371 	 */
372 	win_read = rd_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase);
373 	if (win_read != ha->crb_win) {
374 		ql_dbg(ql_dbg_p3p, vha, 0xb000,
375 		    "%s: Written crbwin (0x%x) "
376 		    "!= Read crbwin (0x%x), off=0x%lx.\n",
377 		    __func__, ha->crb_win, win_read, off_in);
378 	}
379 	*off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
380 }
381 
382 static int
qla82xx_pci_get_crb_addr_2M(struct qla_hw_data * ha,ulong off_in,void __iomem ** off_out)383 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in,
384 			    void __iomem **off_out)
385 {
386 	struct crb_128M_2M_sub_block_map *m;
387 
388 	if (off_in >= QLA82XX_CRB_MAX)
389 		return -1;
390 
391 	if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) {
392 		*off_out = (off_in - QLA82XX_PCI_CAMQM) +
393 		    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
394 		return 0;
395 	}
396 
397 	if (off_in < QLA82XX_PCI_CRBSPACE)
398 		return -1;
399 
400 	off_in -= QLA82XX_PCI_CRBSPACE;
401 
402 	/* Try direct map */
403 	m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)];
404 
405 	if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) {
406 		*off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase;
407 		return 0;
408 	}
409 	/* Not in direct map, use crb window */
410 	*off_out = (void __iomem *)off_in;
411 	return 1;
412 }
413 
414 #define CRB_WIN_LOCK_TIMEOUT 100000000
qla82xx_crb_win_lock(struct qla_hw_data * ha)415 static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
416 {
417 	int done = 0, timeout = 0;
418 
419 	while (!done) {
420 		/* acquire semaphore3 from PCI HW block */
421 		done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
422 		if (done == 1)
423 			break;
424 		if (timeout >= CRB_WIN_LOCK_TIMEOUT)
425 			return -1;
426 		timeout++;
427 	}
428 	qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
429 	return 0;
430 }
431 
432 int
qla82xx_wr_32(struct qla_hw_data * ha,ulong off_in,u32 data)433 qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data)
434 {
435 	void __iomem *off;
436 	unsigned long flags = 0;
437 	int rv;
438 
439 	rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
440 
441 	BUG_ON(rv == -1);
442 
443 	if (rv == 1) {
444 #ifndef __CHECKER__
445 		write_lock_irqsave(&ha->hw_lock, flags);
446 #endif
447 		qla82xx_crb_win_lock(ha);
448 		qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
449 	}
450 
451 	writel(data, (void __iomem *)off);
452 
453 	if (rv == 1) {
454 		qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
455 #ifndef __CHECKER__
456 		write_unlock_irqrestore(&ha->hw_lock, flags);
457 #endif
458 	}
459 	return 0;
460 }
461 
462 int
qla82xx_rd_32(struct qla_hw_data * ha,ulong off_in)463 qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in)
464 {
465 	void __iomem *off;
466 	unsigned long flags = 0;
467 	int rv;
468 	u32 data;
469 
470 	rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
471 
472 	BUG_ON(rv == -1);
473 
474 	if (rv == 1) {
475 #ifndef __CHECKER__
476 		write_lock_irqsave(&ha->hw_lock, flags);
477 #endif
478 		qla82xx_crb_win_lock(ha);
479 		qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
480 	}
481 	data = rd_reg_dword(off);
482 
483 	if (rv == 1) {
484 		qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
485 #ifndef __CHECKER__
486 		write_unlock_irqrestore(&ha->hw_lock, flags);
487 #endif
488 	}
489 	return data;
490 }
491 
492 /*
493  * Context: task, might sleep
494  */
qla82xx_idc_lock(struct qla_hw_data * ha)495 int qla82xx_idc_lock(struct qla_hw_data *ha)
496 {
497 	const int delay_ms = 100, timeout_ms = 2000;
498 	int done, total = 0;
499 
500 	might_sleep();
501 
502 	while (true) {
503 		/* acquire semaphore5 from PCI HW block */
504 		done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
505 		if (done == 1)
506 			break;
507 		if (WARN_ON_ONCE(total >= timeout_ms))
508 			return -1;
509 
510 		total += delay_ms;
511 		msleep(delay_ms);
512 	}
513 
514 	return 0;
515 }
516 
qla82xx_idc_unlock(struct qla_hw_data * ha)517 void qla82xx_idc_unlock(struct qla_hw_data *ha)
518 {
519 	qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
520 }
521 
522 /*
523  * check memory access boundary.
524  * used by test agent. support ddr access only for now
525  */
526 static unsigned long
qla82xx_pci_mem_bound_check(struct qla_hw_data * ha,unsigned long long addr,int size)527 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
528 	unsigned long long addr, int size)
529 {
530 	if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
531 		QLA82XX_ADDR_DDR_NET_MAX) ||
532 		!addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET,
533 		QLA82XX_ADDR_DDR_NET_MAX) ||
534 		((size != 1) && (size != 2) && (size != 4) && (size != 8)))
535 			return 0;
536 	else
537 		return 1;
538 }
539 
540 static int qla82xx_pci_set_window_warning_count;
541 
542 static unsigned long
qla82xx_pci_set_window(struct qla_hw_data * ha,unsigned long long addr)543 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
544 {
545 	int window;
546 	u32 win_read;
547 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
548 
549 	if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
550 		QLA82XX_ADDR_DDR_NET_MAX)) {
551 		/* DDR network side */
552 		window = MN_WIN(addr);
553 		ha->ddr_mn_window = window;
554 		qla82xx_wr_32(ha,
555 			ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
556 		win_read = qla82xx_rd_32(ha,
557 			ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
558 		if ((win_read << 17) != window) {
559 			ql_dbg(ql_dbg_p3p, vha, 0xb003,
560 			    "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
561 			    __func__, window, win_read);
562 		}
563 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
564 	} else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
565 		QLA82XX_ADDR_OCM0_MAX)) {
566 		unsigned int temp1;
567 
568 		if ((addr & 0x00ff800) == 0xff800) {
569 			ql_log(ql_log_warn, vha, 0xb004,
570 			    "%s: QM access not handled.\n", __func__);
571 			addr = -1UL;
572 		}
573 		window = OCM_WIN(addr);
574 		ha->ddr_mn_window = window;
575 		qla82xx_wr_32(ha,
576 			ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
577 		win_read = qla82xx_rd_32(ha,
578 			ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
579 		temp1 = ((window & 0x1FF) << 7) |
580 		    ((window & 0x0FFFE0000) >> 17);
581 		if (win_read != temp1) {
582 			ql_log(ql_log_warn, vha, 0xb005,
583 			    "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
584 			    __func__, temp1, win_read);
585 		}
586 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
587 
588 	} else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET,
589 		QLA82XX_P3_ADDR_QDR_NET_MAX)) {
590 		/* QDR network side */
591 		window = MS_WIN(addr);
592 		ha->qdr_sn_window = window;
593 		qla82xx_wr_32(ha,
594 			ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
595 		win_read = qla82xx_rd_32(ha,
596 			ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
597 		if (win_read != window) {
598 			ql_log(ql_log_warn, vha, 0xb006,
599 			    "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
600 			    __func__, window, win_read);
601 		}
602 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
603 	} else {
604 		/*
605 		 * peg gdb frequently accesses memory that doesn't exist,
606 		 * this limits the chit chat so debugging isn't slowed down.
607 		 */
608 		if ((qla82xx_pci_set_window_warning_count++ < 8) ||
609 		    (qla82xx_pci_set_window_warning_count%64 == 0)) {
610 			ql_log(ql_log_warn, vha, 0xb007,
611 			    "%s: Warning:%s Unknown address range!.\n",
612 			    __func__, QLA2XXX_DRIVER_NAME);
613 		}
614 		addr = -1UL;
615 	}
616 	return addr;
617 }
618 
619 /* check if address is in the same windows as the previous access */
qla82xx_pci_is_same_window(struct qla_hw_data * ha,unsigned long long addr)620 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
621 	unsigned long long addr)
622 {
623 	int			window;
624 	unsigned long long	qdr_max;
625 
626 	qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
627 
628 	/* DDR network side */
629 	if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
630 		QLA82XX_ADDR_DDR_NET_MAX))
631 		BUG();
632 	else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
633 		QLA82XX_ADDR_OCM0_MAX))
634 		return 1;
635 	else if (addr_in_range(addr, QLA82XX_ADDR_OCM1,
636 		QLA82XX_ADDR_OCM1_MAX))
637 		return 1;
638 	else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
639 		/* QDR network side */
640 		window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
641 		if (ha->qdr_sn_window == window)
642 			return 1;
643 	}
644 	return 0;
645 }
646 
qla82xx_pci_mem_read_direct(struct qla_hw_data * ha,u64 off,void * data,int size)647 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
648 	u64 off, void *data, int size)
649 {
650 	unsigned long   flags;
651 	void __iomem *addr = NULL;
652 	int             ret = 0;
653 	u64             start;
654 	uint8_t __iomem  *mem_ptr = NULL;
655 	unsigned long   mem_base;
656 	unsigned long   mem_page;
657 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
658 
659 	write_lock_irqsave(&ha->hw_lock, flags);
660 
661 	/*
662 	 * If attempting to access unknown address or straddle hw windows,
663 	 * do not access.
664 	 */
665 	start = qla82xx_pci_set_window(ha, off);
666 	if ((start == -1UL) ||
667 		(qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
668 		write_unlock_irqrestore(&ha->hw_lock, flags);
669 		ql_log(ql_log_fatal, vha, 0xb008,
670 		    "%s out of bound pci memory "
671 		    "access, offset is 0x%llx.\n",
672 		    QLA2XXX_DRIVER_NAME, off);
673 		return -1;
674 	}
675 
676 	write_unlock_irqrestore(&ha->hw_lock, flags);
677 	mem_base = pci_resource_start(ha->pdev, 0);
678 	mem_page = start & PAGE_MASK;
679 	/* Map two pages whenever user tries to access addresses in two
680 	* consecutive pages.
681 	*/
682 	if (mem_page != ((start + size - 1) & PAGE_MASK))
683 		mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
684 	else
685 		mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
686 	if (mem_ptr == NULL) {
687 		*(u8  *)data = 0;
688 		return -1;
689 	}
690 	addr = mem_ptr;
691 	addr += start & (PAGE_SIZE - 1);
692 	write_lock_irqsave(&ha->hw_lock, flags);
693 
694 	switch (size) {
695 	case 1:
696 		*(u8  *)data = readb(addr);
697 		break;
698 	case 2:
699 		*(u16 *)data = readw(addr);
700 		break;
701 	case 4:
702 		*(u32 *)data = readl(addr);
703 		break;
704 	case 8:
705 		*(u64 *)data = readq(addr);
706 		break;
707 	default:
708 		ret = -1;
709 		break;
710 	}
711 	write_unlock_irqrestore(&ha->hw_lock, flags);
712 
713 	if (mem_ptr)
714 		iounmap(mem_ptr);
715 	return ret;
716 }
717 
718 static int
qla82xx_pci_mem_write_direct(struct qla_hw_data * ha,u64 off,void * data,int size)719 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
720 	u64 off, void *data, int size)
721 {
722 	unsigned long   flags;
723 	void  __iomem *addr = NULL;
724 	int             ret = 0;
725 	u64             start;
726 	uint8_t __iomem *mem_ptr = NULL;
727 	unsigned long   mem_base;
728 	unsigned long   mem_page;
729 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
730 
731 	write_lock_irqsave(&ha->hw_lock, flags);
732 
733 	/*
734 	 * If attempting to access unknown address or straddle hw windows,
735 	 * do not access.
736 	 */
737 	start = qla82xx_pci_set_window(ha, off);
738 	if ((start == -1UL) ||
739 		(qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
740 		write_unlock_irqrestore(&ha->hw_lock, flags);
741 		ql_log(ql_log_fatal, vha, 0xb009,
742 		    "%s out of bound memory "
743 		    "access, offset is 0x%llx.\n",
744 		    QLA2XXX_DRIVER_NAME, off);
745 		return -1;
746 	}
747 
748 	write_unlock_irqrestore(&ha->hw_lock, flags);
749 	mem_base = pci_resource_start(ha->pdev, 0);
750 	mem_page = start & PAGE_MASK;
751 	/* Map two pages whenever user tries to access addresses in two
752 	 * consecutive pages.
753 	 */
754 	if (mem_page != ((start + size - 1) & PAGE_MASK))
755 		mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
756 	else
757 		mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
758 	if (mem_ptr == NULL)
759 		return -1;
760 
761 	addr = mem_ptr;
762 	addr += start & (PAGE_SIZE - 1);
763 	write_lock_irqsave(&ha->hw_lock, flags);
764 
765 	switch (size) {
766 	case 1:
767 		writeb(*(u8  *)data, addr);
768 		break;
769 	case 2:
770 		writew(*(u16 *)data, addr);
771 		break;
772 	case 4:
773 		writel(*(u32 *)data, addr);
774 		break;
775 	case 8:
776 		writeq(*(u64 *)data, addr);
777 		break;
778 	default:
779 		ret = -1;
780 		break;
781 	}
782 	write_unlock_irqrestore(&ha->hw_lock, flags);
783 	if (mem_ptr)
784 		iounmap(mem_ptr);
785 	return ret;
786 }
787 
788 #define MTU_FUDGE_FACTOR 100
789 static unsigned long
qla82xx_decode_crb_addr(unsigned long addr)790 qla82xx_decode_crb_addr(unsigned long addr)
791 {
792 	int i;
793 	unsigned long base_addr, offset, pci_base;
794 
795 	if (!qla82xx_crb_table_initialized)
796 		qla82xx_crb_addr_transform_setup();
797 
798 	pci_base = ADDR_ERROR;
799 	base_addr = addr & 0xfff00000;
800 	offset = addr & 0x000fffff;
801 
802 	for (i = 0; i < MAX_CRB_XFORM; i++) {
803 		if (crb_addr_xform[i] == base_addr) {
804 			pci_base = i << 20;
805 			break;
806 		}
807 	}
808 	if (pci_base == ADDR_ERROR)
809 		return pci_base;
810 	return pci_base + offset;
811 }
812 
813 static long rom_max_timeout = 100;
814 static long qla82xx_rom_lock_timeout = 100;
815 
816 static int
qla82xx_rom_lock(struct qla_hw_data * ha)817 qla82xx_rom_lock(struct qla_hw_data *ha)
818 {
819 	int done = 0, timeout = 0;
820 	uint32_t lock_owner = 0;
821 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
822 
823 	while (!done) {
824 		/* acquire semaphore2 from PCI HW block */
825 		done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
826 		if (done == 1)
827 			break;
828 		if (timeout >= qla82xx_rom_lock_timeout) {
829 			lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
830 			ql_dbg(ql_dbg_p3p, vha, 0xb157,
831 			    "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
832 			    __func__, ha->portnum, lock_owner);
833 			return -1;
834 		}
835 		timeout++;
836 	}
837 	qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ha->portnum);
838 	return 0;
839 }
840 
841 static void
qla82xx_rom_unlock(struct qla_hw_data * ha)842 qla82xx_rom_unlock(struct qla_hw_data *ha)
843 {
844 	qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, 0xffffffff);
845 	qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
846 }
847 
848 static int
qla82xx_wait_rom_busy(struct qla_hw_data * ha)849 qla82xx_wait_rom_busy(struct qla_hw_data *ha)
850 {
851 	long timeout = 0;
852 	long done = 0 ;
853 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
854 
855 	while (done == 0) {
856 		done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
857 		done &= 4;
858 		timeout++;
859 		if (timeout >= rom_max_timeout) {
860 			ql_dbg(ql_dbg_p3p, vha, 0xb00a,
861 			    "%s: Timeout reached waiting for rom busy.\n",
862 			    QLA2XXX_DRIVER_NAME);
863 			return -1;
864 		}
865 	}
866 	return 0;
867 }
868 
869 static int
qla82xx_wait_rom_done(struct qla_hw_data * ha)870 qla82xx_wait_rom_done(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 &= 2;
879 		timeout++;
880 		if (timeout >= rom_max_timeout) {
881 			ql_dbg(ql_dbg_p3p, vha, 0xb00b,
882 			    "%s: Timeout reached waiting for rom done.\n",
883 			    QLA2XXX_DRIVER_NAME);
884 			return -1;
885 		}
886 	}
887 	return 0;
888 }
889 
890 static int
qla82xx_md_rw_32(struct qla_hw_data * ha,uint32_t off,u32 data,uint8_t flag)891 qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
892 {
893 	uint32_t  off_value, rval = 0;
894 
895 	wrt_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000);
896 
897 	/* Read back value to make sure write has gone through */
898 	rd_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase);
899 	off_value  = (off & 0x0000FFFF);
900 
901 	if (flag)
902 		wrt_reg_dword(off_value + CRB_INDIRECT_2M + ha->nx_pcibase,
903 			      data);
904 	else
905 		rval = rd_reg_dword(off_value + CRB_INDIRECT_2M +
906 				    ha->nx_pcibase);
907 
908 	return rval;
909 }
910 
911 static int
qla82xx_do_rom_fast_read(struct qla_hw_data * ha,int addr,int * valp)912 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
913 {
914 	/* Dword reads to flash. */
915 	qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
916 	*valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
917 	    (addr & 0x0000FFFF), 0, 0);
918 
919 	return 0;
920 }
921 
922 static int
qla82xx_rom_fast_read(struct qla_hw_data * ha,int addr,int * valp)923 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
924 {
925 	int ret, loops = 0;
926 	uint32_t lock_owner = 0;
927 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
928 
929 	while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
930 		udelay(100);
931 		schedule();
932 		loops++;
933 	}
934 	if (loops >= 50000) {
935 		lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
936 		ql_log(ql_log_fatal, vha, 0x00b9,
937 		    "Failed to acquire SEM2 lock, Lock Owner %u.\n",
938 		    lock_owner);
939 		return -1;
940 	}
941 	ret = qla82xx_do_rom_fast_read(ha, addr, valp);
942 	qla82xx_rom_unlock(ha);
943 	return ret;
944 }
945 
946 static int
qla82xx_read_status_reg(struct qla_hw_data * ha,uint32_t * val)947 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
948 {
949 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
950 
951 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
952 	qla82xx_wait_rom_busy(ha);
953 	if (qla82xx_wait_rom_done(ha)) {
954 		ql_log(ql_log_warn, vha, 0xb00c,
955 		    "Error waiting for rom done.\n");
956 		return -1;
957 	}
958 	*val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
959 	return 0;
960 }
961 
962 static int
qla82xx_flash_wait_write_finish(struct qla_hw_data * ha)963 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
964 {
965 	uint32_t val = 0;
966 	int i, ret;
967 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
968 
969 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
970 	for (i = 0; i < 50000; i++) {
971 		ret = qla82xx_read_status_reg(ha, &val);
972 		if (ret < 0 || (val & 1) == 0)
973 			return ret;
974 		udelay(10);
975 		cond_resched();
976 	}
977 	ql_log(ql_log_warn, vha, 0xb00d,
978 	       "Timeout reached waiting for write finish.\n");
979 	return -1;
980 }
981 
982 static int
qla82xx_flash_set_write_enable(struct qla_hw_data * ha)983 qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
984 {
985 	uint32_t val;
986 
987 	qla82xx_wait_rom_busy(ha);
988 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
989 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
990 	qla82xx_wait_rom_busy(ha);
991 	if (qla82xx_wait_rom_done(ha))
992 		return -1;
993 	if (qla82xx_read_status_reg(ha, &val) != 0)
994 		return -1;
995 	if ((val & 2) != 2)
996 		return -1;
997 	return 0;
998 }
999 
1000 static int
qla82xx_write_status_reg(struct qla_hw_data * ha,uint32_t val)1001 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1002 {
1003 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1004 
1005 	if (qla82xx_flash_set_write_enable(ha))
1006 		return -1;
1007 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1008 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1009 	if (qla82xx_wait_rom_done(ha)) {
1010 		ql_log(ql_log_warn, vha, 0xb00e,
1011 		    "Error waiting for rom done.\n");
1012 		return -1;
1013 	}
1014 	return qla82xx_flash_wait_write_finish(ha);
1015 }
1016 
1017 static int
qla82xx_write_disable_flash(struct qla_hw_data * ha)1018 qla82xx_write_disable_flash(struct qla_hw_data *ha)
1019 {
1020 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1021 
1022 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1023 	if (qla82xx_wait_rom_done(ha)) {
1024 		ql_log(ql_log_warn, vha, 0xb00f,
1025 		    "Error waiting for rom done.\n");
1026 		return -1;
1027 	}
1028 	return 0;
1029 }
1030 
1031 static int
ql82xx_rom_lock_d(struct qla_hw_data * ha)1032 ql82xx_rom_lock_d(struct qla_hw_data *ha)
1033 {
1034 	int loops = 0;
1035 	uint32_t lock_owner = 0;
1036 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1037 
1038 	while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1039 		udelay(100);
1040 		cond_resched();
1041 		loops++;
1042 	}
1043 	if (loops >= 50000) {
1044 		lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
1045 		ql_log(ql_log_warn, vha, 0xb010,
1046 		    "ROM lock failed, Lock Owner %u.\n", lock_owner);
1047 		return -1;
1048 	}
1049 	return 0;
1050 }
1051 
1052 static int
qla82xx_write_flash_dword(struct qla_hw_data * ha,uint32_t flashaddr,uint32_t data)1053 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1054 	uint32_t data)
1055 {
1056 	int ret = 0;
1057 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1058 
1059 	ret = ql82xx_rom_lock_d(ha);
1060 	if (ret < 0) {
1061 		ql_log(ql_log_warn, vha, 0xb011,
1062 		    "ROM lock failed.\n");
1063 		return ret;
1064 	}
1065 
1066 	ret = qla82xx_flash_set_write_enable(ha);
1067 	if (ret < 0)
1068 		goto done_write;
1069 
1070 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1071 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1072 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1073 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1074 	qla82xx_wait_rom_busy(ha);
1075 	if (qla82xx_wait_rom_done(ha)) {
1076 		ql_log(ql_log_warn, vha, 0xb012,
1077 		    "Error waiting for rom done.\n");
1078 		ret = -1;
1079 		goto done_write;
1080 	}
1081 
1082 	ret = qla82xx_flash_wait_write_finish(ha);
1083 
1084 done_write:
1085 	qla82xx_rom_unlock(ha);
1086 	return ret;
1087 }
1088 
1089 /* This routine does CRB initialize sequence
1090  *  to put the ISP into operational state
1091  */
1092 static int
qla82xx_pinit_from_rom(scsi_qla_host_t * vha)1093 qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1094 {
1095 	int addr, val;
1096 	int i ;
1097 	struct crb_addr_pair *buf;
1098 	unsigned long off;
1099 	unsigned offset, n;
1100 	struct qla_hw_data *ha = vha->hw;
1101 
1102 	struct crb_addr_pair {
1103 		long addr;
1104 		long data;
1105 	};
1106 
1107 	/* Halt all the individual PEGs and other blocks of the ISP */
1108 	qla82xx_rom_lock(ha);
1109 
1110 	/* disable all I2Q */
1111 	qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1112 	qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1113 	qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1114 	qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1115 	qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1116 	qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1117 
1118 	/* disable all niu interrupts */
1119 	qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1120 	/* disable xge rx/tx */
1121 	qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1122 	/* disable xg1 rx/tx */
1123 	qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1124 	/* disable sideband mac */
1125 	qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1126 	/* disable ap0 mac */
1127 	qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1128 	/* disable ap1 mac */
1129 	qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1130 
1131 	/* halt sre */
1132 	val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1133 	qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1134 
1135 	/* halt epg */
1136 	qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1137 
1138 	/* halt timers */
1139 	qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1140 	qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1141 	qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1142 	qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1143 	qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1144 	qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1145 
1146 	/* halt pegs */
1147 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1148 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1149 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1150 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1151 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1152 	msleep(20);
1153 
1154 	/* big hammer */
1155 	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1156 		/* don't reset CAM block on reset */
1157 		qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1158 	else
1159 		qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1160 	qla82xx_rom_unlock(ha);
1161 
1162 	/* Read the signature value from the flash.
1163 	 * Offset 0: Contain signature (0xcafecafe)
1164 	 * Offset 4: Offset and number of addr/value pairs
1165 	 * that present in CRB initialize sequence
1166 	 */
1167 	n = 0;
1168 	if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1169 	    qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1170 		ql_log(ql_log_fatal, vha, 0x006e,
1171 		    "Error Reading crb_init area: n: %08x.\n", n);
1172 		return -1;
1173 	}
1174 
1175 	/* Offset in flash = lower 16 bits
1176 	 * Number of entries = upper 16 bits
1177 	 */
1178 	offset = n & 0xffffU;
1179 	n = (n >> 16) & 0xffffU;
1180 
1181 	/* number of addr/value pair should not exceed 1024 entries */
1182 	if (n  >= 1024) {
1183 		ql_log(ql_log_fatal, vha, 0x0071,
1184 		    "Card flash not initialized:n=0x%x.\n", n);
1185 		return -1;
1186 	}
1187 
1188 	ql_log(ql_log_info, vha, 0x0072,
1189 	    "%d CRB init values found in ROM.\n", n);
1190 
1191 	buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
1192 	if (buf == NULL) {
1193 		ql_log(ql_log_fatal, vha, 0x010c,
1194 		    "Unable to allocate memory.\n");
1195 		return -ENOMEM;
1196 	}
1197 
1198 	for (i = 0; i < n; i++) {
1199 		if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1200 		    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1201 			kfree(buf);
1202 			return -1;
1203 		}
1204 
1205 		buf[i].addr = addr;
1206 		buf[i].data = val;
1207 	}
1208 
1209 	for (i = 0; i < n; i++) {
1210 		/* Translate internal CRB initialization
1211 		 * address to PCI bus address
1212 		 */
1213 		off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1214 		    QLA82XX_PCI_CRBSPACE;
1215 		/* Not all CRB  addr/value pair to be written,
1216 		 * some of them are skipped
1217 		 */
1218 
1219 		/* skipping cold reboot MAGIC */
1220 		if (off == QLA82XX_CAM_RAM(0x1fc))
1221 			continue;
1222 
1223 		/* do not reset PCI */
1224 		if (off == (ROMUSB_GLB + 0xbc))
1225 			continue;
1226 
1227 		/* skip core clock, so that firmware can increase the clock */
1228 		if (off == (ROMUSB_GLB + 0xc8))
1229 			continue;
1230 
1231 		/* skip the function enable register */
1232 		if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1233 			continue;
1234 
1235 		if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1236 			continue;
1237 
1238 		if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1239 			continue;
1240 
1241 		if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1242 			continue;
1243 
1244 		if (off == ADDR_ERROR) {
1245 			ql_log(ql_log_fatal, vha, 0x0116,
1246 			    "Unknown addr: 0x%08lx.\n", buf[i].addr);
1247 			continue;
1248 		}
1249 
1250 		qla82xx_wr_32(ha, off, buf[i].data);
1251 
1252 		/* ISP requires much bigger delay to settle down,
1253 		 * else crb_window returns 0xffffffff
1254 		 */
1255 		if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1256 			msleep(1000);
1257 
1258 		/* ISP requires millisec delay between
1259 		 * successive CRB register updation
1260 		 */
1261 		msleep(1);
1262 	}
1263 
1264 	kfree(buf);
1265 
1266 	/* Resetting the data and instruction cache */
1267 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1268 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1269 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1270 
1271 	/* Clear all protocol processing engines */
1272 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1273 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1274 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1275 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1276 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1277 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1278 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1279 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1280 	return 0;
1281 }
1282 
1283 static int
qla82xx_pci_mem_write_2M(struct qla_hw_data * ha,u64 off,void * data,int size)1284 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1285 		u64 off, void *data, int size)
1286 {
1287 	int i, j, ret = 0, loop, sz[2], off0;
1288 	int scale, shift_amount, startword;
1289 	uint32_t temp;
1290 	uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1291 
1292 	/*
1293 	 * If not MN, go check for MS or invalid.
1294 	 */
1295 	if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1296 		mem_crb = QLA82XX_CRB_QDR_NET;
1297 	else {
1298 		mem_crb = QLA82XX_CRB_DDR_NET;
1299 		if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1300 			return qla82xx_pci_mem_write_direct(ha,
1301 			    off, data, size);
1302 	}
1303 
1304 	off0 = off & 0x7;
1305 	sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1306 	sz[1] = size - sz[0];
1307 
1308 	off8 = off & 0xfffffff0;
1309 	loop = (((off & 0xf) + size - 1) >> 4) + 1;
1310 	shift_amount = 4;
1311 	scale = 2;
1312 	startword = (off & 0xf)/8;
1313 
1314 	for (i = 0; i < loop; i++) {
1315 		if (qla82xx_pci_mem_read_2M(ha, off8 +
1316 		    (i << shift_amount), &word[i * scale], 8))
1317 			return -1;
1318 	}
1319 
1320 	switch (size) {
1321 	case 1:
1322 		tmpw = *((uint8_t *)data);
1323 		break;
1324 	case 2:
1325 		tmpw = *((uint16_t *)data);
1326 		break;
1327 	case 4:
1328 		tmpw = *((uint32_t *)data);
1329 		break;
1330 	case 8:
1331 	default:
1332 		tmpw = *((uint64_t *)data);
1333 		break;
1334 	}
1335 
1336 	if (sz[0] == 8) {
1337 		word[startword] = tmpw;
1338 	} else {
1339 		word[startword] &=
1340 			~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1341 		word[startword] |= tmpw << (off0 * 8);
1342 	}
1343 	if (sz[1] != 0) {
1344 		word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1345 		word[startword+1] |= tmpw >> (sz[0] * 8);
1346 	}
1347 
1348 	for (i = 0; i < loop; i++) {
1349 		temp = off8 + (i << shift_amount);
1350 		qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1351 		temp = 0;
1352 		qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1353 		temp = word[i * scale] & 0xffffffff;
1354 		qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1355 		temp = (word[i * scale] >> 32) & 0xffffffff;
1356 		qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1357 		temp = word[i*scale + 1] & 0xffffffff;
1358 		qla82xx_wr_32(ha, mem_crb +
1359 		    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1360 		temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1361 		qla82xx_wr_32(ha, mem_crb +
1362 		    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1363 
1364 		temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1365 		qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1366 		temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1367 		qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1368 
1369 		for (j = 0; j < MAX_CTL_CHECK; j++) {
1370 			temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1371 			if ((temp & MIU_TA_CTL_BUSY) == 0)
1372 				break;
1373 		}
1374 
1375 		if (j >= MAX_CTL_CHECK) {
1376 			if (printk_ratelimit())
1377 				dev_err(&ha->pdev->dev,
1378 				    "failed to write through agent.\n");
1379 			ret = -1;
1380 			break;
1381 		}
1382 	}
1383 
1384 	return ret;
1385 }
1386 
1387 static int
qla82xx_fw_load_from_flash(struct qla_hw_data * ha)1388 qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1389 {
1390 	int  i;
1391 	long size = 0;
1392 	long flashaddr = ha->flt_region_bootload << 2;
1393 	long memaddr = BOOTLD_START;
1394 	u64 data;
1395 	u32 high, low;
1396 
1397 	size = (IMAGE_START - BOOTLD_START) / 8;
1398 
1399 	for (i = 0; i < size; i++) {
1400 		if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1401 		    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1402 			return -1;
1403 		}
1404 		data = ((u64)high << 32) | low ;
1405 		qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1406 		flashaddr += 8;
1407 		memaddr += 8;
1408 
1409 		if (i % 0x1000 == 0)
1410 			msleep(1);
1411 	}
1412 	udelay(100);
1413 	read_lock(&ha->hw_lock);
1414 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1415 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1416 	read_unlock(&ha->hw_lock);
1417 	return 0;
1418 }
1419 
1420 int
qla82xx_pci_mem_read_2M(struct qla_hw_data * ha,u64 off,void * data,int size)1421 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1422 		u64 off, void *data, int size)
1423 {
1424 	int i, j = 0, k, start, end, loop, sz[2], off0[2];
1425 	int	      shift_amount;
1426 	uint32_t      temp;
1427 	uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1428 
1429 	/*
1430 	 * If not MN, go check for MS or invalid.
1431 	 */
1432 
1433 	if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1434 		mem_crb = QLA82XX_CRB_QDR_NET;
1435 	else {
1436 		mem_crb = QLA82XX_CRB_DDR_NET;
1437 		if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1438 			return qla82xx_pci_mem_read_direct(ha,
1439 			    off, data, size);
1440 	}
1441 
1442 	off8 = off & 0xfffffff0;
1443 	off0[0] = off & 0xf;
1444 	sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1445 	shift_amount = 4;
1446 	loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1447 	off0[1] = 0;
1448 	sz[1] = size - sz[0];
1449 
1450 	for (i = 0; i < loop; i++) {
1451 		temp = off8 + (i << shift_amount);
1452 		qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1453 		temp = 0;
1454 		qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1455 		temp = MIU_TA_CTL_ENABLE;
1456 		qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1457 		temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1458 		qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1459 
1460 		for (j = 0; j < MAX_CTL_CHECK; j++) {
1461 			temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1462 			if ((temp & MIU_TA_CTL_BUSY) == 0)
1463 				break;
1464 		}
1465 
1466 		if (j >= MAX_CTL_CHECK) {
1467 			if (printk_ratelimit())
1468 				dev_err(&ha->pdev->dev,
1469 				    "failed to read through agent.\n");
1470 			break;
1471 		}
1472 
1473 		start = off0[i] >> 2;
1474 		end   = (off0[i] + sz[i] - 1) >> 2;
1475 		for (k = start; k <= end; k++) {
1476 			temp = qla82xx_rd_32(ha,
1477 					mem_crb + MIU_TEST_AGT_RDDATA(k));
1478 			word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1479 		}
1480 	}
1481 
1482 	if (j >= MAX_CTL_CHECK)
1483 		return -1;
1484 
1485 	if ((off0[0] & 7) == 0) {
1486 		val = word[0];
1487 	} else {
1488 		val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1489 			((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1490 	}
1491 
1492 	switch (size) {
1493 	case 1:
1494 		*(uint8_t  *)data = val;
1495 		break;
1496 	case 2:
1497 		*(uint16_t *)data = val;
1498 		break;
1499 	case 4:
1500 		*(uint32_t *)data = val;
1501 		break;
1502 	case 8:
1503 		*(uint64_t *)data = val;
1504 		break;
1505 	}
1506 	return 0;
1507 }
1508 
1509 
1510 static struct qla82xx_uri_table_desc *
qla82xx_get_table_desc(const u8 * unirom,int section)1511 qla82xx_get_table_desc(const u8 *unirom, int section)
1512 {
1513 	uint32_t i;
1514 	struct qla82xx_uri_table_desc *directory =
1515 		(struct qla82xx_uri_table_desc *)&unirom[0];
1516 	uint32_t offset;
1517 	uint32_t tab_type;
1518 	uint32_t entries = le32_to_cpu(directory->num_entries);
1519 
1520 	for (i = 0; i < entries; i++) {
1521 		offset = le32_to_cpu(directory->findex) +
1522 		    (i * le32_to_cpu(directory->entry_size));
1523 		tab_type = get_unaligned_le32((u32 *)&unirom[offset] + 8);
1524 
1525 		if (tab_type == section)
1526 			return (struct qla82xx_uri_table_desc *)&unirom[offset];
1527 	}
1528 
1529 	return NULL;
1530 }
1531 
1532 static struct qla82xx_uri_data_desc *
qla82xx_get_data_desc(struct qla_hw_data * ha,u32 section,u32 idx_offset)1533 qla82xx_get_data_desc(struct qla_hw_data *ha,
1534 	u32 section, u32 idx_offset)
1535 {
1536 	const u8 *unirom = ha->hablob->fw->data;
1537 	int idx = get_unaligned_le32((u32 *)&unirom[ha->file_prd_off] +
1538 				     idx_offset);
1539 	struct qla82xx_uri_table_desc *tab_desc = NULL;
1540 	uint32_t offset;
1541 
1542 	tab_desc = qla82xx_get_table_desc(unirom, section);
1543 	if (!tab_desc)
1544 		return NULL;
1545 
1546 	offset = le32_to_cpu(tab_desc->findex) +
1547 	    (le32_to_cpu(tab_desc->entry_size) * idx);
1548 
1549 	return (struct qla82xx_uri_data_desc *)&unirom[offset];
1550 }
1551 
1552 static u8 *
qla82xx_get_bootld_offset(struct qla_hw_data * ha)1553 qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1554 {
1555 	u32 offset = BOOTLD_START;
1556 	struct qla82xx_uri_data_desc *uri_desc = NULL;
1557 
1558 	if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1559 		uri_desc = qla82xx_get_data_desc(ha,
1560 		    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1561 		if (uri_desc)
1562 			offset = le32_to_cpu(uri_desc->findex);
1563 	}
1564 
1565 	return (u8 *)&ha->hablob->fw->data[offset];
1566 }
1567 
qla82xx_get_fw_size(struct qla_hw_data * ha)1568 static u32 qla82xx_get_fw_size(struct qla_hw_data *ha)
1569 {
1570 	struct qla82xx_uri_data_desc *uri_desc = NULL;
1571 
1572 	if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1573 		uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1574 		    QLA82XX_URI_FIRMWARE_IDX_OFF);
1575 		if (uri_desc)
1576 			return le32_to_cpu(uri_desc->size);
1577 	}
1578 
1579 	return get_unaligned_le32(&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1580 }
1581 
1582 static u8 *
qla82xx_get_fw_offs(struct qla_hw_data * ha)1583 qla82xx_get_fw_offs(struct qla_hw_data *ha)
1584 {
1585 	u32 offset = IMAGE_START;
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 			offset = le32_to_cpu(uri_desc->findex);
1593 	}
1594 
1595 	return (u8 *)&ha->hablob->fw->data[offset];
1596 }
1597 
1598 /* PCI related functions */
qla82xx_pci_region_offset(struct pci_dev * pdev,int region)1599 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1600 {
1601 	unsigned long val = 0;
1602 	u32 control;
1603 
1604 	switch (region) {
1605 	case 0:
1606 		val = 0;
1607 		break;
1608 	case 1:
1609 		pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1610 		val = control + QLA82XX_MSIX_TBL_SPACE;
1611 		break;
1612 	}
1613 	return val;
1614 }
1615 
1616 
1617 int
qla82xx_iospace_config(struct qla_hw_data * ha)1618 qla82xx_iospace_config(struct qla_hw_data *ha)
1619 {
1620 	uint32_t len = 0;
1621 
1622 	if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1623 		ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1624 		    "Failed to reserver selected regions.\n");
1625 		goto iospace_error_exit;
1626 	}
1627 
1628 	/* Use MMIO operations for all accesses. */
1629 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1630 		ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1631 		    "Region #0 not an MMIO resource, aborting.\n");
1632 		goto iospace_error_exit;
1633 	}
1634 
1635 	len = pci_resource_len(ha->pdev, 0);
1636 	ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len);
1637 	if (!ha->nx_pcibase) {
1638 		ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1639 		    "Cannot remap pcibase MMIO, aborting.\n");
1640 		goto iospace_error_exit;
1641 	}
1642 
1643 	/* Mapping of IO base pointer */
1644 	if (IS_QLA8044(ha)) {
1645 		ha->iobase = ha->nx_pcibase;
1646 	} else if (IS_QLA82XX(ha)) {
1647 		ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11);
1648 	}
1649 
1650 	if (!ql2xdbwr) {
1651 		ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) +
1652 		    (ha->pdev->devfn << 12)), 4);
1653 		if (!ha->nxdb_wr_ptr) {
1654 			ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1655 			    "Cannot remap MMIO, aborting.\n");
1656 			goto iospace_error_exit;
1657 		}
1658 
1659 		/* Mapping of IO base pointer,
1660 		 * door bell read and write pointer
1661 		 */
1662 		ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) +
1663 		    (ha->pdev->devfn * 8);
1664 	} else {
1665 		ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ?
1666 			QLA82XX_CAMRAM_DB1 :
1667 			QLA82XX_CAMRAM_DB2);
1668 	}
1669 
1670 	ha->max_req_queues = ha->max_rsp_queues = 1;
1671 	ha->msix_count = ha->max_rsp_queues + 1;
1672 	ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1673 	    "nx_pci_base=%p iobase=%p "
1674 	    "max_req_queues=%d msix_count=%d.\n",
1675 	    ha->nx_pcibase, ha->iobase,
1676 	    ha->max_req_queues, ha->msix_count);
1677 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1678 	    "nx_pci_base=%p iobase=%p "
1679 	    "max_req_queues=%d msix_count=%d.\n",
1680 	    ha->nx_pcibase, ha->iobase,
1681 	    ha->max_req_queues, ha->msix_count);
1682 	return 0;
1683 
1684 iospace_error_exit:
1685 	return -ENOMEM;
1686 }
1687 
1688 /* GS related functions */
1689 
1690 /* Initialization related functions */
1691 
1692 /**
1693  * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1694  * @vha: HA context
1695  *
1696  * Returns 0 on success.
1697 */
1698 int
qla82xx_pci_config(scsi_qla_host_t * vha)1699 qla82xx_pci_config(scsi_qla_host_t *vha)
1700 {
1701 	struct qla_hw_data *ha = vha->hw;
1702 	int ret;
1703 
1704 	pci_set_master(ha->pdev);
1705 	ret = pci_set_mwi(ha->pdev);
1706 	ha->chip_revision = ha->pdev->revision;
1707 	ql_dbg(ql_dbg_init, vha, 0x0043,
1708 	    "Chip revision:%d; pci_set_mwi() returned %d.\n",
1709 	    ha->chip_revision, ret);
1710 	return 0;
1711 }
1712 
1713 /**
1714  * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1715  * @vha: HA context
1716  *
1717  * Returns 0 on success.
1718  */
1719 int
qla82xx_reset_chip(scsi_qla_host_t * vha)1720 qla82xx_reset_chip(scsi_qla_host_t *vha)
1721 {
1722 	struct qla_hw_data *ha = vha->hw;
1723 
1724 	ha->isp_ops->disable_intrs(ha);
1725 
1726 	return QLA_SUCCESS;
1727 }
1728 
qla82xx_config_rings(struct scsi_qla_host * vha)1729 void qla82xx_config_rings(struct scsi_qla_host *vha)
1730 {
1731 	struct qla_hw_data *ha = vha->hw;
1732 	struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1733 	struct init_cb_81xx *icb;
1734 	struct req_que *req = ha->req_q_map[0];
1735 	struct rsp_que *rsp = ha->rsp_q_map[0];
1736 
1737 	/* Setup ring parameters in initialization control block. */
1738 	icb = (struct init_cb_81xx *)ha->init_cb;
1739 	icb->request_q_outpointer = cpu_to_le16(0);
1740 	icb->response_q_inpointer = cpu_to_le16(0);
1741 	icb->request_q_length = cpu_to_le16(req->length);
1742 	icb->response_q_length = cpu_to_le16(rsp->length);
1743 	put_unaligned_le64(req->dma, &icb->request_q_address);
1744 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
1745 
1746 	wrt_reg_dword(&reg->req_q_out[0], 0);
1747 	wrt_reg_dword(&reg->rsp_q_in[0], 0);
1748 	wrt_reg_dword(&reg->rsp_q_out[0], 0);
1749 }
1750 
1751 static int
qla82xx_fw_load_from_blob(struct qla_hw_data * ha)1752 qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1753 {
1754 	u64 *ptr64;
1755 	u32 i, flashaddr, size;
1756 	__le64 data;
1757 
1758 	size = (IMAGE_START - BOOTLD_START) / 8;
1759 
1760 	ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1761 	flashaddr = BOOTLD_START;
1762 
1763 	for (i = 0; i < size; i++) {
1764 		data = cpu_to_le64(ptr64[i]);
1765 		if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1766 			return -EIO;
1767 		flashaddr += 8;
1768 	}
1769 
1770 	flashaddr = FLASH_ADDR_START;
1771 	size = qla82xx_get_fw_size(ha) / 8;
1772 	ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1773 
1774 	for (i = 0; i < size; i++) {
1775 		data = cpu_to_le64(ptr64[i]);
1776 
1777 		if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1778 			return -EIO;
1779 		flashaddr += 8;
1780 	}
1781 	udelay(100);
1782 
1783 	/* Write a magic value to CAMRAM register
1784 	 * at a specified offset to indicate
1785 	 * that all data is written and
1786 	 * ready for firmware to initialize.
1787 	 */
1788 	qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1789 
1790 	read_lock(&ha->hw_lock);
1791 	qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1792 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1793 	read_unlock(&ha->hw_lock);
1794 	return 0;
1795 }
1796 
1797 static int
qla82xx_set_product_offset(struct qla_hw_data * ha)1798 qla82xx_set_product_offset(struct qla_hw_data *ha)
1799 {
1800 	struct qla82xx_uri_table_desc *ptab_desc = NULL;
1801 	const uint8_t *unirom = ha->hablob->fw->data;
1802 	uint32_t i;
1803 	uint32_t entries;
1804 	uint32_t flags, file_chiprev, offset;
1805 	uint8_t chiprev = ha->chip_revision;
1806 	/* Hardcoding mn_present flag for P3P */
1807 	int mn_present = 0;
1808 	uint32_t flagbit;
1809 
1810 	ptab_desc = qla82xx_get_table_desc(unirom,
1811 		 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1812 	if (!ptab_desc)
1813 		return -1;
1814 
1815 	entries = le32_to_cpu(ptab_desc->num_entries);
1816 
1817 	for (i = 0; i < entries; i++) {
1818 		offset = le32_to_cpu(ptab_desc->findex) +
1819 			(i * le32_to_cpu(ptab_desc->entry_size));
1820 		flags = le32_to_cpu(*((__le32 *)&unirom[offset] +
1821 			QLA82XX_URI_FLAGS_OFF));
1822 		file_chiprev = le32_to_cpu(*((__le32 *)&unirom[offset] +
1823 			QLA82XX_URI_CHIP_REV_OFF));
1824 
1825 		flagbit = mn_present ? 1 : 2;
1826 
1827 		if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1828 			ha->file_prd_off = offset;
1829 			return 0;
1830 		}
1831 	}
1832 	return -1;
1833 }
1834 
1835 static int
qla82xx_validate_firmware_blob(scsi_qla_host_t * vha,uint8_t fw_type)1836 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1837 {
1838 	uint32_t val;
1839 	uint32_t min_size;
1840 	struct qla_hw_data *ha = vha->hw;
1841 	const struct firmware *fw = ha->hablob->fw;
1842 
1843 	ha->fw_type = fw_type;
1844 
1845 	if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1846 		if (qla82xx_set_product_offset(ha))
1847 			return -EINVAL;
1848 
1849 		min_size = QLA82XX_URI_FW_MIN_SIZE;
1850 	} else {
1851 		val = get_unaligned_le32(&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1852 		if (val != QLA82XX_BDINFO_MAGIC)
1853 			return -EINVAL;
1854 
1855 		min_size = QLA82XX_FW_MIN_SIZE;
1856 	}
1857 
1858 	if (fw->size < min_size)
1859 		return -EINVAL;
1860 	return 0;
1861 }
1862 
1863 static int
qla82xx_check_cmdpeg_state(struct qla_hw_data * ha)1864 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1865 {
1866 	u32 val = 0;
1867 	int retries = 60;
1868 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1869 
1870 	do {
1871 		read_lock(&ha->hw_lock);
1872 		val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1873 		read_unlock(&ha->hw_lock);
1874 
1875 		switch (val) {
1876 		case PHAN_INITIALIZE_COMPLETE:
1877 		case PHAN_INITIALIZE_ACK:
1878 			return QLA_SUCCESS;
1879 		case PHAN_INITIALIZE_FAILED:
1880 			break;
1881 		default:
1882 			break;
1883 		}
1884 		ql_log(ql_log_info, vha, 0x00a8,
1885 		    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1886 		    val, retries);
1887 
1888 		msleep(500);
1889 
1890 	} while (--retries);
1891 
1892 	ql_log(ql_log_fatal, vha, 0x00a9,
1893 	    "Cmd Peg initialization failed: 0x%x.\n", val);
1894 
1895 	val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1896 	read_lock(&ha->hw_lock);
1897 	qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1898 	read_unlock(&ha->hw_lock);
1899 	return QLA_FUNCTION_FAILED;
1900 }
1901 
1902 static int
qla82xx_check_rcvpeg_state(struct qla_hw_data * ha)1903 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1904 {
1905 	u32 val = 0;
1906 	int retries = 60;
1907 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1908 
1909 	do {
1910 		read_lock(&ha->hw_lock);
1911 		val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1912 		read_unlock(&ha->hw_lock);
1913 
1914 		switch (val) {
1915 		case PHAN_INITIALIZE_COMPLETE:
1916 		case PHAN_INITIALIZE_ACK:
1917 			return QLA_SUCCESS;
1918 		case PHAN_INITIALIZE_FAILED:
1919 			break;
1920 		default:
1921 			break;
1922 		}
1923 		ql_log(ql_log_info, vha, 0x00ab,
1924 		    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1925 		    val, retries);
1926 
1927 		msleep(500);
1928 
1929 	} while (--retries);
1930 
1931 	ql_log(ql_log_fatal, vha, 0x00ac,
1932 	    "Rcv Peg initialization failed: 0x%x.\n", val);
1933 	read_lock(&ha->hw_lock);
1934 	qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1935 	read_unlock(&ha->hw_lock);
1936 	return QLA_FUNCTION_FAILED;
1937 }
1938 
1939 /* ISR related functions */
1940 static struct qla82xx_legacy_intr_set legacy_intr[] =
1941 	QLA82XX_LEGACY_INTR_CONFIG;
1942 
1943 /*
1944  * qla82xx_mbx_completion() - Process mailbox command completions.
1945  * @ha: SCSI driver HA context
1946  * @mb0: Mailbox0 register
1947  */
1948 void
qla82xx_mbx_completion(scsi_qla_host_t * vha,uint16_t mb0)1949 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1950 {
1951 	uint16_t	cnt;
1952 	__le16 __iomem *wptr;
1953 	struct qla_hw_data *ha = vha->hw;
1954 	struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1955 
1956 	wptr = &reg->mailbox_out[1];
1957 
1958 	/* Load return mailbox registers. */
1959 	ha->flags.mbox_int = 1;
1960 	ha->mailbox_out[0] = mb0;
1961 
1962 	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1963 		ha->mailbox_out[cnt] = rd_reg_word(wptr);
1964 		wptr++;
1965 	}
1966 
1967 	if (!ha->mcp)
1968 		ql_dbg(ql_dbg_async, vha, 0x5053,
1969 		    "MBX pointer ERROR.\n");
1970 }
1971 
1972 /**
1973  * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1974  * @irq: interrupt number
1975  * @dev_id: SCSI driver HA context
1976  *
1977  * Called by system whenever the host adapter generates an interrupt.
1978  *
1979  * Returns handled flag.
1980  */
1981 irqreturn_t
qla82xx_intr_handler(int irq,void * dev_id)1982 qla82xx_intr_handler(int irq, void *dev_id)
1983 {
1984 	scsi_qla_host_t	*vha;
1985 	struct qla_hw_data *ha;
1986 	struct rsp_que *rsp;
1987 	struct device_reg_82xx __iomem *reg;
1988 	int status = 0, status1 = 0;
1989 	unsigned long	flags;
1990 	unsigned long	iter;
1991 	uint32_t	stat = 0;
1992 	uint16_t	mb[8];
1993 
1994 	rsp = (struct rsp_que *) dev_id;
1995 	if (!rsp) {
1996 		ql_log(ql_log_info, NULL, 0xb053,
1997 		    "%s: NULL response queue pointer.\n", __func__);
1998 		return IRQ_NONE;
1999 	}
2000 	ha = rsp->hw;
2001 
2002 	if (!ha->flags.msi_enabled) {
2003 		status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2004 		if (!(status & ha->nx_legacy_intr.int_vec_bit))
2005 			return IRQ_NONE;
2006 
2007 		status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2008 		if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2009 			return IRQ_NONE;
2010 	}
2011 
2012 	/* clear the interrupt */
2013 	qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2014 
2015 	/* read twice to ensure write is flushed */
2016 	qla82xx_rd_32(ha, ISR_INT_VECTOR);
2017 	qla82xx_rd_32(ha, ISR_INT_VECTOR);
2018 
2019 	reg = &ha->iobase->isp82;
2020 
2021 	spin_lock_irqsave(&ha->hardware_lock, flags);
2022 	vha = pci_get_drvdata(ha->pdev);
2023 	for (iter = 1; iter--; ) {
2024 
2025 		if (rd_reg_dword(&reg->host_int)) {
2026 			stat = rd_reg_dword(&reg->host_status);
2027 
2028 			switch (stat & 0xff) {
2029 			case 0x1:
2030 			case 0x2:
2031 			case 0x10:
2032 			case 0x11:
2033 				qla82xx_mbx_completion(vha, MSW(stat));
2034 				status |= MBX_INTERRUPT;
2035 				break;
2036 			case 0x12:
2037 				mb[0] = MSW(stat);
2038 				mb[1] = rd_reg_word(&reg->mailbox_out[1]);
2039 				mb[2] = rd_reg_word(&reg->mailbox_out[2]);
2040 				mb[3] = rd_reg_word(&reg->mailbox_out[3]);
2041 				qla2x00_async_event(vha, rsp, mb);
2042 				break;
2043 			case 0x13:
2044 				qla24xx_process_response_queue(vha, rsp);
2045 				break;
2046 			default:
2047 				ql_dbg(ql_dbg_async, vha, 0x5054,
2048 				    "Unrecognized interrupt type (%d).\n",
2049 				    stat & 0xff);
2050 				break;
2051 			}
2052 		}
2053 		wrt_reg_dword(&reg->host_int, 0);
2054 	}
2055 
2056 	qla2x00_handle_mbx_completion(ha, status);
2057 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2058 
2059 	if (!ha->flags.msi_enabled)
2060 		qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2061 
2062 	return IRQ_HANDLED;
2063 }
2064 
2065 irqreturn_t
qla82xx_msix_default(int irq,void * dev_id)2066 qla82xx_msix_default(int irq, void *dev_id)
2067 {
2068 	scsi_qla_host_t	*vha;
2069 	struct qla_hw_data *ha;
2070 	struct rsp_que *rsp;
2071 	struct device_reg_82xx __iomem *reg;
2072 	int status = 0;
2073 	unsigned long flags;
2074 	uint32_t stat = 0;
2075 	uint32_t host_int = 0;
2076 	uint16_t mb[8];
2077 
2078 	rsp = (struct rsp_que *) dev_id;
2079 	if (!rsp) {
2080 		printk(KERN_INFO
2081 			"%s(): NULL response queue pointer.\n", __func__);
2082 		return IRQ_NONE;
2083 	}
2084 	ha = rsp->hw;
2085 
2086 	reg = &ha->iobase->isp82;
2087 
2088 	spin_lock_irqsave(&ha->hardware_lock, flags);
2089 	vha = pci_get_drvdata(ha->pdev);
2090 	do {
2091 		host_int = rd_reg_dword(&reg->host_int);
2092 		if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2093 			break;
2094 		if (host_int) {
2095 			stat = rd_reg_dword(&reg->host_status);
2096 
2097 			switch (stat & 0xff) {
2098 			case 0x1:
2099 			case 0x2:
2100 			case 0x10:
2101 			case 0x11:
2102 				qla82xx_mbx_completion(vha, MSW(stat));
2103 				status |= MBX_INTERRUPT;
2104 				break;
2105 			case 0x12:
2106 				mb[0] = MSW(stat);
2107 				mb[1] = rd_reg_word(&reg->mailbox_out[1]);
2108 				mb[2] = rd_reg_word(&reg->mailbox_out[2]);
2109 				mb[3] = rd_reg_word(&reg->mailbox_out[3]);
2110 				qla2x00_async_event(vha, rsp, mb);
2111 				break;
2112 			case 0x13:
2113 				qla24xx_process_response_queue(vha, rsp);
2114 				break;
2115 			default:
2116 				ql_dbg(ql_dbg_async, vha, 0x5041,
2117 				    "Unrecognized interrupt type (%d).\n",
2118 				    stat & 0xff);
2119 				break;
2120 			}
2121 		}
2122 		wrt_reg_dword(&reg->host_int, 0);
2123 	} while (0);
2124 
2125 	qla2x00_handle_mbx_completion(ha, status);
2126 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2127 
2128 	return IRQ_HANDLED;
2129 }
2130 
2131 irqreturn_t
qla82xx_msix_rsp_q(int irq,void * dev_id)2132 qla82xx_msix_rsp_q(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 	unsigned long flags;
2139 	uint32_t host_int = 0;
2140 
2141 	rsp = (struct rsp_que *) dev_id;
2142 	if (!rsp) {
2143 		printk(KERN_INFO
2144 			"%s(): NULL response queue pointer.\n", __func__);
2145 		return IRQ_NONE;
2146 	}
2147 
2148 	ha = rsp->hw;
2149 	reg = &ha->iobase->isp82;
2150 	spin_lock_irqsave(&ha->hardware_lock, flags);
2151 	vha = pci_get_drvdata(ha->pdev);
2152 	host_int = rd_reg_dword(&reg->host_int);
2153 	if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2154 		goto out;
2155 	qla24xx_process_response_queue(vha, rsp);
2156 	wrt_reg_dword(&reg->host_int, 0);
2157 out:
2158 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2159 	return IRQ_HANDLED;
2160 }
2161 
2162 void
qla82xx_poll(int irq,void * dev_id)2163 qla82xx_poll(int irq, void *dev_id)
2164 {
2165 	scsi_qla_host_t	*vha;
2166 	struct qla_hw_data *ha;
2167 	struct rsp_que *rsp;
2168 	struct device_reg_82xx __iomem *reg;
2169 	uint32_t stat;
2170 	uint32_t host_int = 0;
2171 	uint16_t mb[8];
2172 	unsigned long flags;
2173 
2174 	rsp = (struct rsp_que *) dev_id;
2175 	if (!rsp) {
2176 		printk(KERN_INFO
2177 			"%s(): NULL response queue pointer.\n", __func__);
2178 		return;
2179 	}
2180 	ha = rsp->hw;
2181 
2182 	reg = &ha->iobase->isp82;
2183 	spin_lock_irqsave(&ha->hardware_lock, flags);
2184 	vha = pci_get_drvdata(ha->pdev);
2185 
2186 	host_int = rd_reg_dword(&reg->host_int);
2187 	if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2188 		goto out;
2189 	if (host_int) {
2190 		stat = rd_reg_dword(&reg->host_status);
2191 		switch (stat & 0xff) {
2192 		case 0x1:
2193 		case 0x2:
2194 		case 0x10:
2195 		case 0x11:
2196 			qla82xx_mbx_completion(vha, MSW(stat));
2197 			break;
2198 		case 0x12:
2199 			mb[0] = MSW(stat);
2200 			mb[1] = rd_reg_word(&reg->mailbox_out[1]);
2201 			mb[2] = rd_reg_word(&reg->mailbox_out[2]);
2202 			mb[3] = rd_reg_word(&reg->mailbox_out[3]);
2203 			qla2x00_async_event(vha, rsp, mb);
2204 			break;
2205 		case 0x13:
2206 			qla24xx_process_response_queue(vha, rsp);
2207 			break;
2208 		default:
2209 			ql_dbg(ql_dbg_p3p, vha, 0xb013,
2210 			    "Unrecognized interrupt type (%d).\n",
2211 			    stat * 0xff);
2212 			break;
2213 		}
2214 		wrt_reg_dword(&reg->host_int, 0);
2215 	}
2216 out:
2217 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2218 }
2219 
2220 void
qla82xx_enable_intrs(struct qla_hw_data * ha)2221 qla82xx_enable_intrs(struct qla_hw_data *ha)
2222 {
2223 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2224 
2225 	qla82xx_mbx_intr_enable(vha);
2226 	spin_lock_irq(&ha->hardware_lock);
2227 	if (IS_QLA8044(ha))
2228 		qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
2229 	else
2230 		qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2231 	spin_unlock_irq(&ha->hardware_lock);
2232 	ha->interrupts_on = 1;
2233 }
2234 
2235 void
qla82xx_disable_intrs(struct qla_hw_data * ha)2236 qla82xx_disable_intrs(struct qla_hw_data *ha)
2237 {
2238 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2239 
2240 	if (ha->interrupts_on)
2241 		qla82xx_mbx_intr_disable(vha);
2242 
2243 	spin_lock_irq(&ha->hardware_lock);
2244 	if (IS_QLA8044(ha))
2245 		qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
2246 	else
2247 		qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2248 	spin_unlock_irq(&ha->hardware_lock);
2249 	ha->interrupts_on = 0;
2250 }
2251 
qla82xx_init_flags(struct qla_hw_data * ha)2252 void qla82xx_init_flags(struct qla_hw_data *ha)
2253 {
2254 	struct qla82xx_legacy_intr_set *nx_legacy_intr;
2255 
2256 	/* ISP 8021 initializations */
2257 	rwlock_init(&ha->hw_lock);
2258 	ha->qdr_sn_window = -1;
2259 	ha->ddr_mn_window = -1;
2260 	ha->curr_window = 255;
2261 	ha->portnum = PCI_FUNC(ha->pdev->devfn);
2262 	nx_legacy_intr = &legacy_intr[ha->portnum];
2263 	ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2264 	ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2265 	ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2266 	ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2267 }
2268 
2269 static inline void
qla82xx_set_idc_version(scsi_qla_host_t * vha)2270 qla82xx_set_idc_version(scsi_qla_host_t *vha)
2271 {
2272 	int idc_ver;
2273 	uint32_t drv_active;
2274 	struct qla_hw_data *ha = vha->hw;
2275 
2276 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2277 	if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2278 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2279 		    QLA82XX_IDC_VERSION);
2280 		ql_log(ql_log_info, vha, 0xb082,
2281 		    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2282 	} else {
2283 		idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2284 		if (idc_ver != QLA82XX_IDC_VERSION)
2285 			ql_log(ql_log_info, vha, 0xb083,
2286 			    "qla2xxx driver IDC version %d is not compatible "
2287 			    "with IDC version %d of the other drivers\n",
2288 			    QLA82XX_IDC_VERSION, idc_ver);
2289 	}
2290 }
2291 
2292 inline void
qla82xx_set_drv_active(scsi_qla_host_t * vha)2293 qla82xx_set_drv_active(scsi_qla_host_t *vha)
2294 {
2295 	uint32_t drv_active;
2296 	struct qla_hw_data *ha = vha->hw;
2297 
2298 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2299 
2300 	/* If reset value is all FF's, initialize DRV_ACTIVE */
2301 	if (drv_active == 0xffffffff) {
2302 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2303 			QLA82XX_DRV_NOT_ACTIVE);
2304 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2305 	}
2306 	drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2307 	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2308 }
2309 
2310 inline void
qla82xx_clear_drv_active(struct qla_hw_data * ha)2311 qla82xx_clear_drv_active(struct qla_hw_data *ha)
2312 {
2313 	uint32_t drv_active;
2314 
2315 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2316 	drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2317 	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2318 }
2319 
2320 static inline int
qla82xx_need_reset(struct qla_hw_data * ha)2321 qla82xx_need_reset(struct qla_hw_data *ha)
2322 {
2323 	uint32_t drv_state;
2324 	int rval;
2325 
2326 	if (ha->flags.nic_core_reset_owner)
2327 		return 1;
2328 	else {
2329 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2330 		rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2331 		return rval;
2332 	}
2333 }
2334 
2335 static inline void
qla82xx_set_rst_ready(struct qla_hw_data * ha)2336 qla82xx_set_rst_ready(struct qla_hw_data *ha)
2337 {
2338 	uint32_t drv_state;
2339 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2340 
2341 	drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2342 
2343 	/* If reset value is all FF's, initialize DRV_STATE */
2344 	if (drv_state == 0xffffffff) {
2345 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2346 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2347 	}
2348 	drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2349 	ql_dbg(ql_dbg_init, vha, 0x00bb,
2350 	    "drv_state = 0x%08x.\n", drv_state);
2351 	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2352 }
2353 
2354 static inline void
qla82xx_clear_rst_ready(struct qla_hw_data * ha)2355 qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2356 {
2357 	uint32_t drv_state;
2358 
2359 	drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2360 	drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2361 	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2362 }
2363 
2364 static inline void
qla82xx_set_qsnt_ready(struct qla_hw_data * ha)2365 qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2366 {
2367 	uint32_t qsnt_state;
2368 
2369 	qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2370 	qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2371 	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2372 }
2373 
2374 void
qla82xx_clear_qsnt_ready(scsi_qla_host_t * vha)2375 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2376 {
2377 	struct qla_hw_data *ha = vha->hw;
2378 	uint32_t qsnt_state;
2379 
2380 	qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2381 	qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2382 	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2383 }
2384 
2385 static int
qla82xx_load_fw(scsi_qla_host_t * vha)2386 qla82xx_load_fw(scsi_qla_host_t *vha)
2387 {
2388 	int rst;
2389 	struct fw_blob *blob;
2390 	struct qla_hw_data *ha = vha->hw;
2391 
2392 	if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2393 		ql_log(ql_log_fatal, vha, 0x009f,
2394 		    "Error during CRB initialization.\n");
2395 		return QLA_FUNCTION_FAILED;
2396 	}
2397 	udelay(500);
2398 
2399 	/* Bring QM and CAMRAM out of reset */
2400 	rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2401 	rst &= ~((1 << 28) | (1 << 24));
2402 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2403 
2404 	/*
2405 	 * FW Load priority:
2406 	 * 1) Operational firmware residing in flash.
2407 	 * 2) Firmware via request-firmware interface (.bin file).
2408 	 */
2409 	if (ql2xfwloadbin == 2)
2410 		goto try_blob_fw;
2411 
2412 	ql_log(ql_log_info, vha, 0x00a0,
2413 	    "Attempting to load firmware from flash.\n");
2414 
2415 	if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2416 		ql_log(ql_log_info, vha, 0x00a1,
2417 		    "Firmware loaded successfully from flash.\n");
2418 		return QLA_SUCCESS;
2419 	} else {
2420 		ql_log(ql_log_warn, vha, 0x0108,
2421 		    "Firmware load from flash failed.\n");
2422 	}
2423 
2424 try_blob_fw:
2425 	ql_log(ql_log_info, vha, 0x00a2,
2426 	    "Attempting to load firmware from blob.\n");
2427 
2428 	/* Load firmware blob. */
2429 	blob = ha->hablob = qla2x00_request_firmware(vha);
2430 	if (!blob) {
2431 		ql_log(ql_log_fatal, vha, 0x00a3,
2432 		    "Firmware image not present.\n");
2433 		goto fw_load_failed;
2434 	}
2435 
2436 	/* Validating firmware blob */
2437 	if (qla82xx_validate_firmware_blob(vha,
2438 		QLA82XX_FLASH_ROMIMAGE)) {
2439 		/* Fallback to URI format */
2440 		if (qla82xx_validate_firmware_blob(vha,
2441 			QLA82XX_UNIFIED_ROMIMAGE)) {
2442 			ql_log(ql_log_fatal, vha, 0x00a4,
2443 			    "No valid firmware image found.\n");
2444 			return QLA_FUNCTION_FAILED;
2445 		}
2446 	}
2447 
2448 	if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2449 		ql_log(ql_log_info, vha, 0x00a5,
2450 		    "Firmware loaded successfully from binary blob.\n");
2451 		return QLA_SUCCESS;
2452 	}
2453 
2454 	ql_log(ql_log_fatal, vha, 0x00a6,
2455 	       "Firmware load failed for binary blob.\n");
2456 	blob->fw = NULL;
2457 	blob = NULL;
2458 
2459 fw_load_failed:
2460 	return QLA_FUNCTION_FAILED;
2461 }
2462 
2463 int
qla82xx_start_firmware(scsi_qla_host_t * vha)2464 qla82xx_start_firmware(scsi_qla_host_t *vha)
2465 {
2466 	uint16_t      lnk;
2467 	struct qla_hw_data *ha = vha->hw;
2468 
2469 	/* scrub dma mask expansion register */
2470 	qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2471 
2472 	/* Put both the PEG CMD and RCV PEG to default state
2473 	 * of 0 before resetting the hardware
2474 	 */
2475 	qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2476 	qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2477 
2478 	/* Overwrite stale initialization register values */
2479 	qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2480 	qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2481 
2482 	if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2483 		ql_log(ql_log_fatal, vha, 0x00a7,
2484 		    "Error trying to start fw.\n");
2485 		return QLA_FUNCTION_FAILED;
2486 	}
2487 
2488 	/* Handshake with the card before we register the devices. */
2489 	if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2490 		ql_log(ql_log_fatal, vha, 0x00aa,
2491 		    "Error during card handshake.\n");
2492 		return QLA_FUNCTION_FAILED;
2493 	}
2494 
2495 	/* Negotiated Link width */
2496 	pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2497 	ha->link_width = (lnk >> 4) & 0x3f;
2498 
2499 	/* Synchronize with Receive peg */
2500 	return qla82xx_check_rcvpeg_state(ha);
2501 }
2502 
2503 static __le32 *
qla82xx_read_flash_data(scsi_qla_host_t * vha,__le32 * dwptr,uint32_t faddr,uint32_t length)2504 qla82xx_read_flash_data(scsi_qla_host_t *vha, __le32 *dwptr, uint32_t faddr,
2505 	uint32_t length)
2506 {
2507 	uint32_t i;
2508 	uint32_t val;
2509 	struct qla_hw_data *ha = vha->hw;
2510 
2511 	/* Dword reads to flash. */
2512 	for (i = 0; i < length/4; i++, faddr += 4) {
2513 		if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2514 			ql_log(ql_log_warn, vha, 0x0106,
2515 			    "Do ROM fast read failed.\n");
2516 			goto done_read;
2517 		}
2518 		dwptr[i] = cpu_to_le32(val);
2519 	}
2520 done_read:
2521 	return dwptr;
2522 }
2523 
2524 static int
qla82xx_unprotect_flash(struct qla_hw_data * ha)2525 qla82xx_unprotect_flash(struct qla_hw_data *ha)
2526 {
2527 	int ret;
2528 	uint32_t val;
2529 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2530 
2531 	ret = ql82xx_rom_lock_d(ha);
2532 	if (ret < 0) {
2533 		ql_log(ql_log_warn, vha, 0xb014,
2534 		    "ROM Lock failed.\n");
2535 		return ret;
2536 	}
2537 
2538 	ret = qla82xx_read_status_reg(ha, &val);
2539 	if (ret < 0)
2540 		goto done_unprotect;
2541 
2542 	val &= ~(BLOCK_PROTECT_BITS << 2);
2543 	ret = qla82xx_write_status_reg(ha, val);
2544 	if (ret < 0) {
2545 		val |= (BLOCK_PROTECT_BITS << 2);
2546 		qla82xx_write_status_reg(ha, val);
2547 	}
2548 
2549 	if (qla82xx_write_disable_flash(ha) != 0)
2550 		ql_log(ql_log_warn, vha, 0xb015,
2551 		    "Write disable failed.\n");
2552 
2553 done_unprotect:
2554 	qla82xx_rom_unlock(ha);
2555 	return ret;
2556 }
2557 
2558 static int
qla82xx_protect_flash(struct qla_hw_data * ha)2559 qla82xx_protect_flash(struct qla_hw_data *ha)
2560 {
2561 	int ret;
2562 	uint32_t val;
2563 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2564 
2565 	ret = ql82xx_rom_lock_d(ha);
2566 	if (ret < 0) {
2567 		ql_log(ql_log_warn, vha, 0xb016,
2568 		    "ROM Lock failed.\n");
2569 		return ret;
2570 	}
2571 
2572 	ret = qla82xx_read_status_reg(ha, &val);
2573 	if (ret < 0)
2574 		goto done_protect;
2575 
2576 	val |= (BLOCK_PROTECT_BITS << 2);
2577 	/* LOCK all sectors */
2578 	ret = qla82xx_write_status_reg(ha, val);
2579 	if (ret < 0)
2580 		ql_log(ql_log_warn, vha, 0xb017,
2581 		    "Write status register failed.\n");
2582 
2583 	if (qla82xx_write_disable_flash(ha) != 0)
2584 		ql_log(ql_log_warn, vha, 0xb018,
2585 		    "Write disable failed.\n");
2586 done_protect:
2587 	qla82xx_rom_unlock(ha);
2588 	return ret;
2589 }
2590 
2591 static int
qla82xx_erase_sector(struct qla_hw_data * ha,int addr)2592 qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2593 {
2594 	int ret = 0;
2595 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2596 
2597 	ret = ql82xx_rom_lock_d(ha);
2598 	if (ret < 0) {
2599 		ql_log(ql_log_warn, vha, 0xb019,
2600 		    "ROM Lock failed.\n");
2601 		return ret;
2602 	}
2603 
2604 	qla82xx_flash_set_write_enable(ha);
2605 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2606 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2607 	qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2608 
2609 	if (qla82xx_wait_rom_done(ha)) {
2610 		ql_log(ql_log_warn, vha, 0xb01a,
2611 		    "Error waiting for rom done.\n");
2612 		ret = -1;
2613 		goto done;
2614 	}
2615 	ret = qla82xx_flash_wait_write_finish(ha);
2616 done:
2617 	qla82xx_rom_unlock(ha);
2618 	return ret;
2619 }
2620 
2621 /*
2622  * Address and length are byte address
2623  */
2624 void *
qla82xx_read_optrom_data(struct scsi_qla_host * vha,void * buf,uint32_t offset,uint32_t length)2625 qla82xx_read_optrom_data(struct scsi_qla_host *vha, void *buf,
2626 	uint32_t offset, uint32_t length)
2627 {
2628 	scsi_block_requests(vha->host);
2629 	qla82xx_read_flash_data(vha, buf, offset, length);
2630 	scsi_unblock_requests(vha->host);
2631 	return buf;
2632 }
2633 
2634 static int
qla82xx_write_flash_data(struct scsi_qla_host * vha,__le32 * dwptr,uint32_t faddr,uint32_t dwords)2635 qla82xx_write_flash_data(struct scsi_qla_host *vha, __le32 *dwptr,
2636 	uint32_t faddr, uint32_t dwords)
2637 {
2638 	int ret;
2639 	uint32_t liter;
2640 	uint32_t rest_addr;
2641 	dma_addr_t optrom_dma;
2642 	void *optrom = NULL;
2643 	int page_mode = 0;
2644 	struct qla_hw_data *ha = vha->hw;
2645 
2646 	ret = -1;
2647 
2648 	/* Prepare burst-capable write on supported ISPs. */
2649 	if (page_mode && !(faddr & 0xfff) &&
2650 	    dwords > OPTROM_BURST_DWORDS) {
2651 		optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2652 		    &optrom_dma, GFP_KERNEL);
2653 		if (!optrom) {
2654 			ql_log(ql_log_warn, vha, 0xb01b,
2655 			    "Unable to allocate memory "
2656 			    "for optrom burst write (%x KB).\n",
2657 			    OPTROM_BURST_SIZE / 1024);
2658 		}
2659 	}
2660 
2661 	rest_addr = ha->fdt_block_size - 1;
2662 
2663 	ret = qla82xx_unprotect_flash(ha);
2664 	if (ret) {
2665 		ql_log(ql_log_warn, vha, 0xb01c,
2666 		    "Unable to unprotect flash for update.\n");
2667 		goto write_done;
2668 	}
2669 
2670 	for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2671 		/* Are we at the beginning of a sector? */
2672 		if ((faddr & rest_addr) == 0) {
2673 
2674 			ret = qla82xx_erase_sector(ha, faddr);
2675 			if (ret) {
2676 				ql_log(ql_log_warn, vha, 0xb01d,
2677 				    "Unable to erase sector: address=%x.\n",
2678 				    faddr);
2679 				break;
2680 			}
2681 		}
2682 
2683 		/* Go with burst-write. */
2684 		if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2685 			/* Copy data to DMA'ble buffer. */
2686 			memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2687 
2688 			ret = qla2x00_load_ram(vha, optrom_dma,
2689 			    (ha->flash_data_off | faddr),
2690 			    OPTROM_BURST_DWORDS);
2691 			if (ret != QLA_SUCCESS) {
2692 				ql_log(ql_log_warn, vha, 0xb01e,
2693 				    "Unable to burst-write optrom segment "
2694 				    "(%x/%x/%llx).\n", ret,
2695 				    (ha->flash_data_off | faddr),
2696 				    (unsigned long long)optrom_dma);
2697 				ql_log(ql_log_warn, vha, 0xb01f,
2698 				    "Reverting to slow-write.\n");
2699 
2700 				dma_free_coherent(&ha->pdev->dev,
2701 				    OPTROM_BURST_SIZE, optrom, optrom_dma);
2702 				optrom = NULL;
2703 			} else {
2704 				liter += OPTROM_BURST_DWORDS - 1;
2705 				faddr += OPTROM_BURST_DWORDS - 1;
2706 				dwptr += OPTROM_BURST_DWORDS - 1;
2707 				continue;
2708 			}
2709 		}
2710 
2711 		ret = qla82xx_write_flash_dword(ha, faddr,
2712 						le32_to_cpu(*dwptr));
2713 		if (ret) {
2714 			ql_dbg(ql_dbg_p3p, vha, 0xb020,
2715 			    "Unable to program flash address=%x data=%x.\n",
2716 			    faddr, *dwptr);
2717 			break;
2718 		}
2719 	}
2720 
2721 	ret = qla82xx_protect_flash(ha);
2722 	if (ret)
2723 		ql_log(ql_log_warn, vha, 0xb021,
2724 		    "Unable to protect flash after update.\n");
2725 write_done:
2726 	if (optrom)
2727 		dma_free_coherent(&ha->pdev->dev,
2728 		    OPTROM_BURST_SIZE, optrom, optrom_dma);
2729 	return ret;
2730 }
2731 
2732 int
qla82xx_write_optrom_data(struct scsi_qla_host * vha,void * buf,uint32_t offset,uint32_t length)2733 qla82xx_write_optrom_data(struct scsi_qla_host *vha, void *buf,
2734 	uint32_t offset, uint32_t length)
2735 {
2736 	int rval;
2737 
2738 	/* Suspend HBA. */
2739 	scsi_block_requests(vha->host);
2740 	rval = qla82xx_write_flash_data(vha, buf, offset, length >> 2);
2741 	scsi_unblock_requests(vha->host);
2742 
2743 	/* Convert return ISP82xx to generic */
2744 	if (rval)
2745 		rval = QLA_FUNCTION_FAILED;
2746 	else
2747 		rval = QLA_SUCCESS;
2748 	return rval;
2749 }
2750 
2751 void
qla82xx_start_iocbs(scsi_qla_host_t * vha)2752 qla82xx_start_iocbs(scsi_qla_host_t *vha)
2753 {
2754 	struct qla_hw_data *ha = vha->hw;
2755 	struct req_que *req = ha->req_q_map[0];
2756 	uint32_t dbval;
2757 
2758 	/* Adjust ring index. */
2759 	req->ring_index++;
2760 	if (req->ring_index == req->length) {
2761 		req->ring_index = 0;
2762 		req->ring_ptr = req->ring;
2763 	} else
2764 		req->ring_ptr++;
2765 
2766 	dbval = 0x04 | (ha->portnum << 5);
2767 
2768 	dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2769 	if (ql2xdbwr)
2770 		qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval);
2771 	else {
2772 		wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
2773 		wmb();
2774 		while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
2775 			wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
2776 			wmb();
2777 		}
2778 	}
2779 }
2780 
2781 static void
qla82xx_rom_lock_recovery(struct qla_hw_data * ha)2782 qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2783 {
2784 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2785 	uint32_t lock_owner = 0;
2786 
2787 	if (qla82xx_rom_lock(ha)) {
2788 		lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
2789 		/* Someone else is holding the lock. */
2790 		ql_log(ql_log_info, vha, 0xb022,
2791 		    "Resetting rom_lock, Lock Owner %u.\n", lock_owner);
2792 	}
2793 	/*
2794 	 * Either we got the lock, or someone
2795 	 * else died while holding it.
2796 	 * In either case, unlock.
2797 	 */
2798 	qla82xx_rom_unlock(ha);
2799 }
2800 
2801 /*
2802  * qla82xx_device_bootstrap
2803  *    Initialize device, set DEV_READY, start fw
2804  *
2805  * Note:
2806  *      IDC lock must be held upon entry
2807  *
2808  * Return:
2809  *    Success : 0
2810  *    Failed  : 1
2811  */
2812 static int
qla82xx_device_bootstrap(scsi_qla_host_t * vha)2813 qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2814 {
2815 	int rval = QLA_SUCCESS;
2816 	int i;
2817 	uint32_t old_count, count;
2818 	struct qla_hw_data *ha = vha->hw;
2819 	int need_reset = 0;
2820 
2821 	need_reset = qla82xx_need_reset(ha);
2822 
2823 	if (need_reset) {
2824 		/* We are trying to perform a recovery here. */
2825 		if (ha->flags.isp82xx_fw_hung)
2826 			qla82xx_rom_lock_recovery(ha);
2827 	} else  {
2828 		old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2829 		for (i = 0; i < 10; i++) {
2830 			msleep(200);
2831 			count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2832 			if (count != old_count) {
2833 				rval = QLA_SUCCESS;
2834 				goto dev_ready;
2835 			}
2836 		}
2837 		qla82xx_rom_lock_recovery(ha);
2838 	}
2839 
2840 	/* set to DEV_INITIALIZING */
2841 	ql_log(ql_log_info, vha, 0x009e,
2842 	    "HW State: INITIALIZING.\n");
2843 	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2844 
2845 	qla82xx_idc_unlock(ha);
2846 	rval = qla82xx_start_firmware(vha);
2847 	qla82xx_idc_lock(ha);
2848 
2849 	if (rval != QLA_SUCCESS) {
2850 		ql_log(ql_log_fatal, vha, 0x00ad,
2851 		    "HW State: FAILED.\n");
2852 		qla82xx_clear_drv_active(ha);
2853 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2854 		return rval;
2855 	}
2856 
2857 dev_ready:
2858 	ql_log(ql_log_info, vha, 0x00ae,
2859 	    "HW State: READY.\n");
2860 	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2861 
2862 	return QLA_SUCCESS;
2863 }
2864 
2865 /*
2866 * qla82xx_need_qsnt_handler
2867 *    Code to start quiescence sequence
2868 *
2869 * Note:
2870 *      IDC lock must be held upon entry
2871 *
2872 * Return: void
2873 */
2874 
2875 static void
qla82xx_need_qsnt_handler(scsi_qla_host_t * vha)2876 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2877 {
2878 	struct qla_hw_data *ha = vha->hw;
2879 	uint32_t dev_state, drv_state, drv_active;
2880 	unsigned long reset_timeout;
2881 
2882 	if (vha->flags.online) {
2883 		/*Block any further I/O and wait for pending cmnds to complete*/
2884 		qla2x00_quiesce_io(vha);
2885 	}
2886 
2887 	/* Set the quiescence ready bit */
2888 	qla82xx_set_qsnt_ready(ha);
2889 
2890 	/*wait for 30 secs for other functions to ack */
2891 	reset_timeout = jiffies + (30 * HZ);
2892 
2893 	drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2894 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2895 	/* Its 2 that is written when qsnt is acked, moving one bit */
2896 	drv_active = drv_active << 0x01;
2897 
2898 	while (drv_state != drv_active) {
2899 
2900 		if (time_after_eq(jiffies, reset_timeout)) {
2901 			/* quiescence timeout, other functions didn't ack
2902 			 * changing the state to DEV_READY
2903 			 */
2904 			ql_log(ql_log_info, vha, 0xb023,
2905 			    "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2906 			    "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2907 			    drv_active, drv_state);
2908 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2909 			    QLA8XXX_DEV_READY);
2910 			ql_log(ql_log_info, vha, 0xb025,
2911 			    "HW State: DEV_READY.\n");
2912 			qla82xx_idc_unlock(ha);
2913 			qla2x00_perform_loop_resync(vha);
2914 			qla82xx_idc_lock(ha);
2915 
2916 			qla82xx_clear_qsnt_ready(vha);
2917 			return;
2918 		}
2919 
2920 		qla82xx_idc_unlock(ha);
2921 		msleep(1000);
2922 		qla82xx_idc_lock(ha);
2923 
2924 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2925 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2926 		drv_active = drv_active << 0x01;
2927 	}
2928 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2929 	/* everyone acked so set the state to DEV_QUIESCENCE */
2930 	if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2931 		ql_log(ql_log_info, vha, 0xb026,
2932 		    "HW State: DEV_QUIESCENT.\n");
2933 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2934 	}
2935 }
2936 
2937 /*
2938 * qla82xx_wait_for_state_change
2939 *    Wait for device state to change from given current state
2940 *
2941 * Note:
2942 *     IDC lock must not be held upon entry
2943 *
2944 * Return:
2945 *    Changed device state.
2946 */
2947 uint32_t
qla82xx_wait_for_state_change(scsi_qla_host_t * vha,uint32_t curr_state)2948 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2949 {
2950 	struct qla_hw_data *ha = vha->hw;
2951 	uint32_t dev_state;
2952 
2953 	do {
2954 		msleep(1000);
2955 		qla82xx_idc_lock(ha);
2956 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2957 		qla82xx_idc_unlock(ha);
2958 	} while (dev_state == curr_state);
2959 
2960 	return dev_state;
2961 }
2962 
2963 void
qla8xxx_dev_failed_handler(scsi_qla_host_t * vha)2964 qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
2965 {
2966 	struct qla_hw_data *ha = vha->hw;
2967 
2968 	/* Disable the board */
2969 	ql_log(ql_log_fatal, vha, 0x00b8,
2970 	    "Disabling the board.\n");
2971 
2972 	if (IS_QLA82XX(ha)) {
2973 		qla82xx_clear_drv_active(ha);
2974 		qla82xx_idc_unlock(ha);
2975 	} else if (IS_QLA8044(ha)) {
2976 		qla8044_clear_drv_active(ha);
2977 		qla8044_idc_unlock(ha);
2978 	}
2979 
2980 	/* Set DEV_FAILED flag to disable timer */
2981 	vha->device_flags |= DFLG_DEV_FAILED;
2982 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2983 	qla2x00_mark_all_devices_lost(vha);
2984 	vha->flags.online = 0;
2985 	vha->flags.init_done = 0;
2986 }
2987 
2988 /*
2989  * qla82xx_need_reset_handler
2990  *    Code to start reset sequence
2991  *
2992  * Note:
2993  *      IDC lock must be held upon entry
2994  *
2995  * Return:
2996  *    Success : 0
2997  *    Failed  : 1
2998  */
2999 static void
qla82xx_need_reset_handler(scsi_qla_host_t * vha)3000 qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3001 {
3002 	uint32_t dev_state, drv_state, drv_active;
3003 	uint32_t active_mask = 0;
3004 	unsigned long reset_timeout;
3005 	struct qla_hw_data *ha = vha->hw;
3006 	struct req_que *req = ha->req_q_map[0];
3007 
3008 	if (vha->flags.online) {
3009 		qla82xx_idc_unlock(ha);
3010 		qla2x00_abort_isp_cleanup(vha);
3011 		ha->isp_ops->get_flash_version(vha, req->ring);
3012 		ha->isp_ops->nvram_config(vha);
3013 		qla82xx_idc_lock(ha);
3014 	}
3015 
3016 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3017 	if (!ha->flags.nic_core_reset_owner) {
3018 		ql_dbg(ql_dbg_p3p, vha, 0xb028,
3019 		    "reset_acknowledged by 0x%x\n", ha->portnum);
3020 		qla82xx_set_rst_ready(ha);
3021 	} else {
3022 		active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3023 		drv_active &= active_mask;
3024 		ql_dbg(ql_dbg_p3p, vha, 0xb029,
3025 		    "active_mask: 0x%08x\n", active_mask);
3026 	}
3027 
3028 	/* wait for 10 seconds for reset ack from all functions */
3029 	reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3030 
3031 	drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3032 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3033 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3034 
3035 	ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3036 	    "drv_state: 0x%08x, drv_active: 0x%08x, "
3037 	    "dev_state: 0x%08x, active_mask: 0x%08x\n",
3038 	    drv_state, drv_active, dev_state, active_mask);
3039 
3040 	while (drv_state != drv_active &&
3041 	    dev_state != QLA8XXX_DEV_INITIALIZING) {
3042 		if (time_after_eq(jiffies, reset_timeout)) {
3043 			ql_log(ql_log_warn, vha, 0x00b5,
3044 			    "Reset timeout.\n");
3045 			break;
3046 		}
3047 		qla82xx_idc_unlock(ha);
3048 		msleep(1000);
3049 		qla82xx_idc_lock(ha);
3050 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3051 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3052 		if (ha->flags.nic_core_reset_owner)
3053 			drv_active &= active_mask;
3054 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3055 	}
3056 
3057 	ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3058 	    "drv_state: 0x%08x, drv_active: 0x%08x, "
3059 	    "dev_state: 0x%08x, active_mask: 0x%08x\n",
3060 	    drv_state, drv_active, dev_state, active_mask);
3061 
3062 	ql_log(ql_log_info, vha, 0x00b6,
3063 	    "Device state is 0x%x = %s.\n",
3064 	    dev_state, qdev_state(dev_state));
3065 
3066 	/* Force to DEV_COLD unless someone else is starting a reset */
3067 	if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3068 	    dev_state != QLA8XXX_DEV_COLD) {
3069 		ql_log(ql_log_info, vha, 0x00b7,
3070 		    "HW State: COLD/RE-INIT.\n");
3071 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3072 		qla82xx_set_rst_ready(ha);
3073 		if (ql2xmdenable) {
3074 			if (qla82xx_md_collect(vha))
3075 				ql_log(ql_log_warn, vha, 0xb02c,
3076 				    "Minidump not collected.\n");
3077 		} else
3078 			ql_log(ql_log_warn, vha, 0xb04f,
3079 			    "Minidump disabled.\n");
3080 	}
3081 }
3082 
3083 int
qla82xx_check_md_needed(scsi_qla_host_t * vha)3084 qla82xx_check_md_needed(scsi_qla_host_t *vha)
3085 {
3086 	struct qla_hw_data *ha = vha->hw;
3087 	uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3088 	int rval = QLA_SUCCESS;
3089 
3090 	fw_major_version = ha->fw_major_version;
3091 	fw_minor_version = ha->fw_minor_version;
3092 	fw_subminor_version = ha->fw_subminor_version;
3093 
3094 	rval = qla2x00_get_fw_version(vha);
3095 	if (rval != QLA_SUCCESS)
3096 		return rval;
3097 
3098 	if (ql2xmdenable) {
3099 		if (!ha->fw_dumped) {
3100 			if ((fw_major_version != ha->fw_major_version ||
3101 			    fw_minor_version != ha->fw_minor_version ||
3102 			    fw_subminor_version != ha->fw_subminor_version) ||
3103 			    (ha->prev_minidump_failed)) {
3104 				ql_dbg(ql_dbg_p3p, vha, 0xb02d,
3105 				    "Firmware version differs Previous version: %d:%d:%d - New version: %d:%d:%d, prev_minidump_failed: %d.\n",
3106 				    fw_major_version, fw_minor_version,
3107 				    fw_subminor_version,
3108 				    ha->fw_major_version,
3109 				    ha->fw_minor_version,
3110 				    ha->fw_subminor_version,
3111 				    ha->prev_minidump_failed);
3112 				/* Release MiniDump resources */
3113 				qla82xx_md_free(vha);
3114 				/* ALlocate MiniDump resources */
3115 				qla82xx_md_prep(vha);
3116 			}
3117 		} else
3118 			ql_log(ql_log_info, vha, 0xb02e,
3119 			    "Firmware dump available to retrieve\n");
3120 	}
3121 	return rval;
3122 }
3123 
3124 
3125 static int
qla82xx_check_fw_alive(scsi_qla_host_t * vha)3126 qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3127 {
3128 	uint32_t fw_heartbeat_counter;
3129 	int status = 0;
3130 
3131 	fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3132 		QLA82XX_PEG_ALIVE_COUNTER);
3133 	/* all 0xff, assume AER/EEH in progress, ignore */
3134 	if (fw_heartbeat_counter == 0xffffffff) {
3135 		ql_dbg(ql_dbg_timer, vha, 0x6003,
3136 		    "FW heartbeat counter is 0xffffffff, "
3137 		    "returning status=%d.\n", status);
3138 		return status;
3139 	}
3140 	if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3141 		vha->seconds_since_last_heartbeat++;
3142 		/* FW not alive after 2 seconds */
3143 		if (vha->seconds_since_last_heartbeat == 2) {
3144 			vha->seconds_since_last_heartbeat = 0;
3145 			status = 1;
3146 		}
3147 	} else
3148 		vha->seconds_since_last_heartbeat = 0;
3149 	vha->fw_heartbeat_counter = fw_heartbeat_counter;
3150 	if (status)
3151 		ql_dbg(ql_dbg_timer, vha, 0x6004,
3152 		    "Returning status=%d.\n", status);
3153 	return status;
3154 }
3155 
3156 /*
3157  * qla82xx_device_state_handler
3158  *	Main state handler
3159  *
3160  * Note:
3161  *      IDC lock must be held upon entry
3162  *
3163  * Return:
3164  *    Success : 0
3165  *    Failed  : 1
3166  */
3167 int
qla82xx_device_state_handler(scsi_qla_host_t * vha)3168 qla82xx_device_state_handler(scsi_qla_host_t *vha)
3169 {
3170 	uint32_t dev_state;
3171 	uint32_t old_dev_state;
3172 	int rval = QLA_SUCCESS;
3173 	unsigned long dev_init_timeout;
3174 	struct qla_hw_data *ha = vha->hw;
3175 	int loopcount = 0;
3176 
3177 	qla82xx_idc_lock(ha);
3178 	if (!vha->flags.init_done) {
3179 		qla82xx_set_drv_active(vha);
3180 		qla82xx_set_idc_version(vha);
3181 	}
3182 
3183 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3184 	old_dev_state = dev_state;
3185 	ql_log(ql_log_info, vha, 0x009b,
3186 	    "Device state is 0x%x = %s.\n",
3187 	    dev_state, qdev_state(dev_state));
3188 
3189 	/* wait for 30 seconds for device to go ready */
3190 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3191 
3192 	while (1) {
3193 
3194 		if (time_after_eq(jiffies, dev_init_timeout)) {
3195 			ql_log(ql_log_fatal, vha, 0x009c,
3196 			    "Device init failed.\n");
3197 			rval = QLA_FUNCTION_FAILED;
3198 			break;
3199 		}
3200 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3201 		if (old_dev_state != dev_state) {
3202 			loopcount = 0;
3203 			old_dev_state = dev_state;
3204 		}
3205 		if (loopcount < 5) {
3206 			ql_log(ql_log_info, vha, 0x009d,
3207 			    "Device state is 0x%x = %s.\n",
3208 			    dev_state, qdev_state(dev_state));
3209 		}
3210 
3211 		switch (dev_state) {
3212 		case QLA8XXX_DEV_READY:
3213 			ha->flags.nic_core_reset_owner = 0;
3214 			goto rel_lock;
3215 		case QLA8XXX_DEV_COLD:
3216 			rval = qla82xx_device_bootstrap(vha);
3217 			break;
3218 		case QLA8XXX_DEV_INITIALIZING:
3219 			qla82xx_idc_unlock(ha);
3220 			msleep(1000);
3221 			qla82xx_idc_lock(ha);
3222 			break;
3223 		case QLA8XXX_DEV_NEED_RESET:
3224 			if (!ql2xdontresethba)
3225 				qla82xx_need_reset_handler(vha);
3226 			else {
3227 				qla82xx_idc_unlock(ha);
3228 				msleep(1000);
3229 				qla82xx_idc_lock(ha);
3230 			}
3231 			dev_init_timeout = jiffies +
3232 			    (ha->fcoe_dev_init_timeout * HZ);
3233 			break;
3234 		case QLA8XXX_DEV_NEED_QUIESCENT:
3235 			qla82xx_need_qsnt_handler(vha);
3236 			/* Reset timeout value after quiescence handler */
3237 			dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout
3238 							 * HZ);
3239 			break;
3240 		case QLA8XXX_DEV_QUIESCENT:
3241 			/* Owner will exit and other will wait for the state
3242 			 * to get changed
3243 			 */
3244 			if (ha->flags.quiesce_owner)
3245 				goto rel_lock;
3246 
3247 			qla82xx_idc_unlock(ha);
3248 			msleep(1000);
3249 			qla82xx_idc_lock(ha);
3250 
3251 			/* Reset timeout value after quiescence handler */
3252 			dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout
3253 							 * HZ);
3254 			break;
3255 		case QLA8XXX_DEV_FAILED:
3256 			qla8xxx_dev_failed_handler(vha);
3257 			rval = QLA_FUNCTION_FAILED;
3258 			goto exit;
3259 		default:
3260 			qla82xx_idc_unlock(ha);
3261 			msleep(1000);
3262 			qla82xx_idc_lock(ha);
3263 		}
3264 		loopcount++;
3265 	}
3266 rel_lock:
3267 	qla82xx_idc_unlock(ha);
3268 exit:
3269 	return rval;
3270 }
3271 
qla82xx_check_temp(scsi_qla_host_t * vha)3272 static int qla82xx_check_temp(scsi_qla_host_t *vha)
3273 {
3274 	uint32_t temp, temp_state, temp_val;
3275 	struct qla_hw_data *ha = vha->hw;
3276 
3277 	temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3278 	temp_state = qla82xx_get_temp_state(temp);
3279 	temp_val = qla82xx_get_temp_val(temp);
3280 
3281 	if (temp_state == QLA82XX_TEMP_PANIC) {
3282 		ql_log(ql_log_warn, vha, 0x600e,
3283 		    "Device temperature %d degrees C exceeds "
3284 		    " maximum allowed. Hardware has been shut down.\n",
3285 		    temp_val);
3286 		return 1;
3287 	} else if (temp_state == QLA82XX_TEMP_WARN) {
3288 		ql_log(ql_log_warn, vha, 0x600f,
3289 		    "Device temperature %d degrees C exceeds "
3290 		    "operating range. Immediate action needed.\n",
3291 		    temp_val);
3292 	}
3293 	return 0;
3294 }
3295 
qla82xx_read_temperature(scsi_qla_host_t * vha)3296 int qla82xx_read_temperature(scsi_qla_host_t *vha)
3297 {
3298 	uint32_t temp;
3299 
3300 	temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
3301 	return qla82xx_get_temp_val(temp);
3302 }
3303 
qla82xx_clear_pending_mbx(scsi_qla_host_t * vha)3304 void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3305 {
3306 	struct qla_hw_data *ha = vha->hw;
3307 
3308 	if (ha->flags.mbox_busy) {
3309 		ha->flags.mbox_int = 1;
3310 		ha->flags.mbox_busy = 0;
3311 		ql_log(ql_log_warn, vha, 0x6010,
3312 		    "Doing premature completion of mbx command.\n");
3313 		if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3314 			complete(&ha->mbx_intr_comp);
3315 	}
3316 }
3317 
qla82xx_watchdog(scsi_qla_host_t * vha)3318 void qla82xx_watchdog(scsi_qla_host_t *vha)
3319 {
3320 	uint32_t dev_state, halt_status;
3321 	struct qla_hw_data *ha = vha->hw;
3322 
3323 	/* don't poll if reset is going on */
3324 	if (!ha->flags.nic_core_reset_hdlr_active) {
3325 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3326 		if (qla82xx_check_temp(vha)) {
3327 			set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3328 			ha->flags.isp82xx_fw_hung = 1;
3329 			qla82xx_clear_pending_mbx(vha);
3330 		} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3331 		    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3332 			ql_log(ql_log_warn, vha, 0x6001,
3333 			    "Adapter reset needed.\n");
3334 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3335 		} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3336 			!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3337 			ql_log(ql_log_warn, vha, 0x6002,
3338 			    "Quiescent needed.\n");
3339 			set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3340 		} else if (dev_state == QLA8XXX_DEV_FAILED &&
3341 			!test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3342 			vha->flags.online == 1) {
3343 			ql_log(ql_log_warn, vha, 0xb055,
3344 			    "Adapter state is failed. Offlining.\n");
3345 			set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3346 			ha->flags.isp82xx_fw_hung = 1;
3347 			qla82xx_clear_pending_mbx(vha);
3348 		} else {
3349 			if (qla82xx_check_fw_alive(vha)) {
3350 				ql_dbg(ql_dbg_timer, vha, 0x6011,
3351 				    "disabling pause transmit on port 0 & 1.\n");
3352 				qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3353 				    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3354 				halt_status = qla82xx_rd_32(ha,
3355 				    QLA82XX_PEG_HALT_STATUS1);
3356 				ql_log(ql_log_info, vha, 0x6005,
3357 				    "dumping hw/fw registers:.\n "
3358 				    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3359 				    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3360 				    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3361 				    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3362 				    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3363 				    qla82xx_rd_32(ha,
3364 					    QLA82XX_CRB_PEG_NET_0 + 0x3c),
3365 				    qla82xx_rd_32(ha,
3366 					    QLA82XX_CRB_PEG_NET_1 + 0x3c),
3367 				    qla82xx_rd_32(ha,
3368 					    QLA82XX_CRB_PEG_NET_2 + 0x3c),
3369 				    qla82xx_rd_32(ha,
3370 					    QLA82XX_CRB_PEG_NET_3 + 0x3c),
3371 				    qla82xx_rd_32(ha,
3372 					    QLA82XX_CRB_PEG_NET_4 + 0x3c));
3373 				if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3374 					ql_log(ql_log_warn, vha, 0xb052,
3375 					    "Firmware aborted with "
3376 					    "error code 0x00006700. Device is "
3377 					    "being reset.\n");
3378 				if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3379 					set_bit(ISP_UNRECOVERABLE,
3380 					    &vha->dpc_flags);
3381 				} else {
3382 					ql_log(ql_log_info, vha, 0x6006,
3383 					    "Detect abort  needed.\n");
3384 					set_bit(ISP_ABORT_NEEDED,
3385 					    &vha->dpc_flags);
3386 				}
3387 				ha->flags.isp82xx_fw_hung = 1;
3388 				ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3389 				qla82xx_clear_pending_mbx(vha);
3390 			}
3391 		}
3392 	}
3393 }
3394 
qla82xx_load_risc(scsi_qla_host_t * vha,uint32_t * srisc_addr)3395 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3396 {
3397 	int rval = -1;
3398 	struct qla_hw_data *ha = vha->hw;
3399 
3400 	if (IS_QLA82XX(ha))
3401 		rval = qla82xx_device_state_handler(vha);
3402 	else if (IS_QLA8044(ha)) {
3403 		qla8044_idc_lock(ha);
3404 		/* Decide the reset ownership */
3405 		qla83xx_reset_ownership(vha);
3406 		qla8044_idc_unlock(ha);
3407 		rval = qla8044_device_state_handler(vha);
3408 	}
3409 	return rval;
3410 }
3411 
3412 void
qla82xx_set_reset_owner(scsi_qla_host_t * vha)3413 qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3414 {
3415 	struct qla_hw_data *ha = vha->hw;
3416 	uint32_t dev_state = 0;
3417 
3418 	if (IS_QLA82XX(ha))
3419 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3420 	else if (IS_QLA8044(ha))
3421 		dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
3422 
3423 	if (dev_state == QLA8XXX_DEV_READY) {
3424 		ql_log(ql_log_info, vha, 0xb02f,
3425 		    "HW State: NEED RESET\n");
3426 		if (IS_QLA82XX(ha)) {
3427 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3428 			    QLA8XXX_DEV_NEED_RESET);
3429 			ha->flags.nic_core_reset_owner = 1;
3430 			ql_dbg(ql_dbg_p3p, vha, 0xb030,
3431 			    "reset_owner is 0x%x\n", ha->portnum);
3432 		} else if (IS_QLA8044(ha))
3433 			qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
3434 			    QLA8XXX_DEV_NEED_RESET);
3435 	} else
3436 		ql_log(ql_log_info, vha, 0xb031,
3437 		    "Device state is 0x%x = %s.\n",
3438 		    dev_state, qdev_state(dev_state));
3439 }
3440 
3441 /*
3442  *  qla82xx_abort_isp
3443  *      Resets ISP and aborts all outstanding commands.
3444  *
3445  * Input:
3446  *      ha           = adapter block pointer.
3447  *
3448  * Returns:
3449  *      0 = success
3450  */
3451 int
qla82xx_abort_isp(scsi_qla_host_t * vha)3452 qla82xx_abort_isp(scsi_qla_host_t *vha)
3453 {
3454 	int rval = -1;
3455 	struct qla_hw_data *ha = vha->hw;
3456 
3457 	if (vha->device_flags & DFLG_DEV_FAILED) {
3458 		ql_log(ql_log_warn, vha, 0x8024,
3459 		    "Device in failed state, exiting.\n");
3460 		return QLA_SUCCESS;
3461 	}
3462 	ha->flags.nic_core_reset_hdlr_active = 1;
3463 
3464 	qla82xx_idc_lock(ha);
3465 	qla82xx_set_reset_owner(vha);
3466 	qla82xx_idc_unlock(ha);
3467 
3468 	if (IS_QLA82XX(ha))
3469 		rval = qla82xx_device_state_handler(vha);
3470 	else if (IS_QLA8044(ha)) {
3471 		qla8044_idc_lock(ha);
3472 		/* Decide the reset ownership */
3473 		qla83xx_reset_ownership(vha);
3474 		qla8044_idc_unlock(ha);
3475 		rval = qla8044_device_state_handler(vha);
3476 	}
3477 
3478 	qla82xx_idc_lock(ha);
3479 	qla82xx_clear_rst_ready(ha);
3480 	qla82xx_idc_unlock(ha);
3481 
3482 	if (rval == QLA_SUCCESS) {
3483 		ha->flags.isp82xx_fw_hung = 0;
3484 		ha->flags.nic_core_reset_hdlr_active = 0;
3485 		qla82xx_restart_isp(vha);
3486 	}
3487 
3488 	if (rval) {
3489 		vha->flags.online = 1;
3490 		if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3491 			if (ha->isp_abort_cnt == 0) {
3492 				ql_log(ql_log_warn, vha, 0x8027,
3493 				    "ISP error recover failed - board "
3494 				    "disabled.\n");
3495 				/*
3496 				 * The next call disables the board
3497 				 * completely.
3498 				 */
3499 				ha->isp_ops->reset_adapter(vha);
3500 				vha->flags.online = 0;
3501 				clear_bit(ISP_ABORT_RETRY,
3502 				    &vha->dpc_flags);
3503 				rval = QLA_SUCCESS;
3504 			} else { /* schedule another ISP abort */
3505 				ha->isp_abort_cnt--;
3506 				ql_log(ql_log_warn, vha, 0x8036,
3507 				    "ISP abort - retry remaining %d.\n",
3508 				    ha->isp_abort_cnt);
3509 				rval = QLA_FUNCTION_FAILED;
3510 			}
3511 		} else {
3512 			ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3513 			ql_dbg(ql_dbg_taskm, vha, 0x8029,
3514 			    "ISP error recovery - retrying (%d) more times.\n",
3515 			    ha->isp_abort_cnt);
3516 			set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3517 			rval = QLA_FUNCTION_FAILED;
3518 		}
3519 	}
3520 	return rval;
3521 }
3522 
3523 /*
3524  *  qla82xx_fcoe_ctx_reset
3525  *      Perform a quick reset and aborts all outstanding commands.
3526  *      This will only perform an FCoE context reset and avoids a full blown
3527  *      chip reset.
3528  *
3529  * Input:
3530  *      ha = adapter block pointer.
3531  *      is_reset_path = flag for identifying the reset path.
3532  *
3533  * Returns:
3534  *      0 = success
3535  */
qla82xx_fcoe_ctx_reset(scsi_qla_host_t * vha)3536 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3537 {
3538 	int rval = QLA_FUNCTION_FAILED;
3539 
3540 	if (vha->flags.online) {
3541 		/* Abort all outstanding commands, so as to be requeued later */
3542 		qla2x00_abort_isp_cleanup(vha);
3543 	}
3544 
3545 	/* Stop currently executing firmware.
3546 	 * This will destroy existing FCoE context at the F/W end.
3547 	 */
3548 	qla2x00_try_to_stop_firmware(vha);
3549 
3550 	/* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3551 	rval = qla82xx_restart_isp(vha);
3552 
3553 	return rval;
3554 }
3555 
3556 /*
3557  * qla2x00_wait_for_fcoe_ctx_reset
3558  *    Wait till the FCoE context is reset.
3559  *
3560  * Note:
3561  *    Does context switching here.
3562  *    Release SPIN_LOCK (if any) before calling this routine.
3563  *
3564  * Return:
3565  *    Success (fcoe_ctx reset is done) : 0
3566  *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3567  */
qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t * vha)3568 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3569 {
3570 	int status = QLA_FUNCTION_FAILED;
3571 	unsigned long wait_reset;
3572 
3573 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3574 	while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3575 	    test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3576 	    && time_before(jiffies, wait_reset)) {
3577 
3578 		set_current_state(TASK_UNINTERRUPTIBLE);
3579 		schedule_timeout(HZ);
3580 
3581 		if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3582 		    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3583 			status = QLA_SUCCESS;
3584 			break;
3585 		}
3586 	}
3587 	ql_dbg(ql_dbg_p3p, vha, 0xb027,
3588 	       "%s: status=%d.\n", __func__, status);
3589 
3590 	return status;
3591 }
3592 
3593 void
qla82xx_chip_reset_cleanup(scsi_qla_host_t * vha)3594 qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3595 {
3596 	int i, fw_state = 0;
3597 	unsigned long flags;
3598 	struct qla_hw_data *ha = vha->hw;
3599 
3600 	/* Check if 82XX firmware is alive or not
3601 	 * We may have arrived here from NEED_RESET
3602 	 * detection only
3603 	 */
3604 	if (!ha->flags.isp82xx_fw_hung) {
3605 		for (i = 0; i < 2; i++) {
3606 			msleep(1000);
3607 			if (IS_QLA82XX(ha))
3608 				fw_state = qla82xx_check_fw_alive(vha);
3609 			else if (IS_QLA8044(ha))
3610 				fw_state = qla8044_check_fw_alive(vha);
3611 			if (fw_state) {
3612 				ha->flags.isp82xx_fw_hung = 1;
3613 				qla82xx_clear_pending_mbx(vha);
3614 				break;
3615 			}
3616 		}
3617 	}
3618 	ql_dbg(ql_dbg_init, vha, 0x00b0,
3619 	    "Entered %s fw_hung=%d.\n",
3620 	    __func__, ha->flags.isp82xx_fw_hung);
3621 
3622 	/* Abort all commands gracefully if fw NOT hung */
3623 	if (!ha->flags.isp82xx_fw_hung) {
3624 		int cnt, que;
3625 		srb_t *sp;
3626 		struct req_que *req;
3627 
3628 		spin_lock_irqsave(&ha->hardware_lock, flags);
3629 		for (que = 0; que < ha->max_req_queues; que++) {
3630 			req = ha->req_q_map[que];
3631 			if (!req)
3632 				continue;
3633 			for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
3634 				sp = req->outstanding_cmds[cnt];
3635 				if (sp) {
3636 					if ((!sp->u.scmd.crc_ctx ||
3637 					    (sp->flags &
3638 						SRB_FCP_CMND_DMA_VALID)) &&
3639 						!ha->flags.isp82xx_fw_hung) {
3640 						spin_unlock_irqrestore(
3641 						    &ha->hardware_lock, flags);
3642 						if (ha->isp_ops->abort_command(sp)) {
3643 							ql_log(ql_log_info, vha,
3644 							    0x00b1,
3645 							    "mbx abort failed.\n");
3646 						} else {
3647 							ql_log(ql_log_info, vha,
3648 							    0x00b2,
3649 							    "mbx abort success.\n");
3650 						}
3651 						spin_lock_irqsave(&ha->hardware_lock, flags);
3652 					}
3653 				}
3654 			}
3655 		}
3656 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3657 
3658 		/* Wait for pending cmds (physical and virtual) to complete */
3659 		if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3660 		    WAIT_HOST) == QLA_SUCCESS) {
3661 			ql_dbg(ql_dbg_init, vha, 0x00b3,
3662 			    "Done wait for "
3663 			    "pending commands.\n");
3664 		} else {
3665 			WARN_ON_ONCE(true);
3666 		}
3667 	}
3668 }
3669 
3670 /* Minidump related functions */
3671 static int
qla82xx_minidump_process_control(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3672 qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3673 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3674 {
3675 	struct qla_hw_data *ha = vha->hw;
3676 	struct qla82xx_md_entry_crb *crb_entry;
3677 	uint32_t read_value, opcode, poll_time;
3678 	uint32_t addr, index, crb_addr;
3679 	unsigned long wtime;
3680 	struct qla82xx_md_template_hdr *tmplt_hdr;
3681 	uint32_t rval = QLA_SUCCESS;
3682 	int i;
3683 
3684 	tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3685 	crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3686 	crb_addr = crb_entry->addr;
3687 
3688 	for (i = 0; i < crb_entry->op_count; i++) {
3689 		opcode = crb_entry->crb_ctrl.opcode;
3690 		if (opcode & QLA82XX_DBG_OPCODE_WR) {
3691 			qla82xx_md_rw_32(ha, crb_addr,
3692 			    crb_entry->value_1, 1);
3693 			opcode &= ~QLA82XX_DBG_OPCODE_WR;
3694 		}
3695 
3696 		if (opcode & QLA82XX_DBG_OPCODE_RW) {
3697 			read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3698 			qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3699 			opcode &= ~QLA82XX_DBG_OPCODE_RW;
3700 		}
3701 
3702 		if (opcode & QLA82XX_DBG_OPCODE_AND) {
3703 			read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3704 			read_value &= crb_entry->value_2;
3705 			opcode &= ~QLA82XX_DBG_OPCODE_AND;
3706 			if (opcode & QLA82XX_DBG_OPCODE_OR) {
3707 				read_value |= crb_entry->value_3;
3708 				opcode &= ~QLA82XX_DBG_OPCODE_OR;
3709 			}
3710 			qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3711 		}
3712 
3713 		if (opcode & QLA82XX_DBG_OPCODE_OR) {
3714 			read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3715 			read_value |= crb_entry->value_3;
3716 			qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3717 			opcode &= ~QLA82XX_DBG_OPCODE_OR;
3718 		}
3719 
3720 		if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3721 			poll_time = crb_entry->crb_strd.poll_timeout;
3722 			wtime = jiffies + poll_time;
3723 			read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3724 
3725 			do {
3726 				if ((read_value & crb_entry->value_2)
3727 				    == crb_entry->value_1)
3728 					break;
3729 				else if (time_after_eq(jiffies, wtime)) {
3730 					/* capturing dump failed */
3731 					rval = QLA_FUNCTION_FAILED;
3732 					break;
3733 				} else
3734 					read_value = qla82xx_md_rw_32(ha,
3735 					    crb_addr, 0, 0);
3736 			} while (1);
3737 			opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3738 		}
3739 
3740 		if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3741 			if (crb_entry->crb_strd.state_index_a) {
3742 				index = crb_entry->crb_strd.state_index_a;
3743 				addr = tmplt_hdr->saved_state_array[index];
3744 			} else
3745 				addr = crb_addr;
3746 
3747 			read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3748 			index = crb_entry->crb_ctrl.state_index_v;
3749 			tmplt_hdr->saved_state_array[index] = read_value;
3750 			opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3751 		}
3752 
3753 		if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3754 			if (crb_entry->crb_strd.state_index_a) {
3755 				index = crb_entry->crb_strd.state_index_a;
3756 				addr = tmplt_hdr->saved_state_array[index];
3757 			} else
3758 				addr = crb_addr;
3759 
3760 			if (crb_entry->crb_ctrl.state_index_v) {
3761 				index = crb_entry->crb_ctrl.state_index_v;
3762 				read_value =
3763 				    tmplt_hdr->saved_state_array[index];
3764 			} else
3765 				read_value = crb_entry->value_1;
3766 
3767 			qla82xx_md_rw_32(ha, addr, read_value, 1);
3768 			opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3769 		}
3770 
3771 		if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3772 			index = crb_entry->crb_ctrl.state_index_v;
3773 			read_value = tmplt_hdr->saved_state_array[index];
3774 			read_value <<= crb_entry->crb_ctrl.shl;
3775 			read_value >>= crb_entry->crb_ctrl.shr;
3776 			if (crb_entry->value_2)
3777 				read_value &= crb_entry->value_2;
3778 			read_value |= crb_entry->value_3;
3779 			read_value += crb_entry->value_1;
3780 			tmplt_hdr->saved_state_array[index] = read_value;
3781 			opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3782 		}
3783 		crb_addr += crb_entry->crb_strd.addr_stride;
3784 	}
3785 	return rval;
3786 }
3787 
3788 static void
qla82xx_minidump_process_rdocm(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3789 qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3790 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3791 {
3792 	struct qla_hw_data *ha = vha->hw;
3793 	uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3794 	struct qla82xx_md_entry_rdocm *ocm_hdr;
3795 	__le32 *data_ptr = *d_ptr;
3796 
3797 	ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3798 	r_addr = ocm_hdr->read_addr;
3799 	r_stride = ocm_hdr->read_addr_stride;
3800 	loop_cnt = ocm_hdr->op_count;
3801 
3802 	for (i = 0; i < loop_cnt; i++) {
3803 		r_value = rd_reg_dword(r_addr + ha->nx_pcibase);
3804 		*data_ptr++ = cpu_to_le32(r_value);
3805 		r_addr += r_stride;
3806 	}
3807 	*d_ptr = data_ptr;
3808 }
3809 
3810 static void
qla82xx_minidump_process_rdmux(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3811 qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3812 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3813 {
3814 	struct qla_hw_data *ha = vha->hw;
3815 	uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3816 	struct qla82xx_md_entry_mux *mux_hdr;
3817 	__le32 *data_ptr = *d_ptr;
3818 
3819 	mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3820 	r_addr = mux_hdr->read_addr;
3821 	s_addr = mux_hdr->select_addr;
3822 	s_stride = mux_hdr->select_value_stride;
3823 	s_value = mux_hdr->select_value;
3824 	loop_cnt = mux_hdr->op_count;
3825 
3826 	for (i = 0; i < loop_cnt; i++) {
3827 		qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3828 		r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3829 		*data_ptr++ = cpu_to_le32(s_value);
3830 		*data_ptr++ = cpu_to_le32(r_value);
3831 		s_value += s_stride;
3832 	}
3833 	*d_ptr = data_ptr;
3834 }
3835 
3836 static void
qla82xx_minidump_process_rdcrb(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3837 qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3838 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3839 {
3840 	struct qla_hw_data *ha = vha->hw;
3841 	uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3842 	struct qla82xx_md_entry_crb *crb_hdr;
3843 	__le32 *data_ptr = *d_ptr;
3844 
3845 	crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3846 	r_addr = crb_hdr->addr;
3847 	r_stride = crb_hdr->crb_strd.addr_stride;
3848 	loop_cnt = crb_hdr->op_count;
3849 
3850 	for (i = 0; i < loop_cnt; i++) {
3851 		r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3852 		*data_ptr++ = cpu_to_le32(r_addr);
3853 		*data_ptr++ = cpu_to_le32(r_value);
3854 		r_addr += r_stride;
3855 	}
3856 	*d_ptr = data_ptr;
3857 }
3858 
3859 static int
qla82xx_minidump_process_l2tag(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3860 qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3861 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3862 {
3863 	struct qla_hw_data *ha = vha->hw;
3864 	uint32_t addr, r_addr, c_addr, t_r_addr;
3865 	uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3866 	unsigned long p_wait, w_time, p_mask;
3867 	uint32_t c_value_w, c_value_r;
3868 	struct qla82xx_md_entry_cache *cache_hdr;
3869 	int rval = QLA_FUNCTION_FAILED;
3870 	__le32 *data_ptr = *d_ptr;
3871 
3872 	cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3873 	loop_count = cache_hdr->op_count;
3874 	r_addr = cache_hdr->read_addr;
3875 	c_addr = cache_hdr->control_addr;
3876 	c_value_w = cache_hdr->cache_ctrl.write_value;
3877 
3878 	t_r_addr = cache_hdr->tag_reg_addr;
3879 	t_value = cache_hdr->addr_ctrl.init_tag_value;
3880 	r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3881 	p_wait = cache_hdr->cache_ctrl.poll_wait;
3882 	p_mask = cache_hdr->cache_ctrl.poll_mask;
3883 
3884 	for (i = 0; i < loop_count; i++) {
3885 		qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3886 		if (c_value_w)
3887 			qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3888 
3889 		if (p_mask) {
3890 			w_time = jiffies + p_wait;
3891 			do {
3892 				c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3893 				if ((c_value_r & p_mask) == 0)
3894 					break;
3895 				else if (time_after_eq(jiffies, w_time)) {
3896 					/* capturing dump failed */
3897 					ql_dbg(ql_dbg_p3p, vha, 0xb032,
3898 					    "c_value_r: 0x%x, poll_mask: 0x%lx, "
3899 					    "w_time: 0x%lx\n",
3900 					    c_value_r, p_mask, w_time);
3901 					return rval;
3902 				}
3903 			} while (1);
3904 		}
3905 
3906 		addr = r_addr;
3907 		for (k = 0; k < r_cnt; k++) {
3908 			r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3909 			*data_ptr++ = cpu_to_le32(r_value);
3910 			addr += cache_hdr->read_ctrl.read_addr_stride;
3911 		}
3912 		t_value += cache_hdr->addr_ctrl.tag_value_stride;
3913 	}
3914 	*d_ptr = data_ptr;
3915 	return QLA_SUCCESS;
3916 }
3917 
3918 static void
qla82xx_minidump_process_l1cache(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3919 qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3920 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3921 {
3922 	struct qla_hw_data *ha = vha->hw;
3923 	uint32_t addr, r_addr, c_addr, t_r_addr;
3924 	uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3925 	uint32_t c_value_w;
3926 	struct qla82xx_md_entry_cache *cache_hdr;
3927 	__le32 *data_ptr = *d_ptr;
3928 
3929 	cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3930 	loop_count = cache_hdr->op_count;
3931 	r_addr = cache_hdr->read_addr;
3932 	c_addr = cache_hdr->control_addr;
3933 	c_value_w = cache_hdr->cache_ctrl.write_value;
3934 
3935 	t_r_addr = cache_hdr->tag_reg_addr;
3936 	t_value = cache_hdr->addr_ctrl.init_tag_value;
3937 	r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3938 
3939 	for (i = 0; i < loop_count; i++) {
3940 		qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3941 		qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3942 		addr = r_addr;
3943 		for (k = 0; k < r_cnt; k++) {
3944 			r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3945 			*data_ptr++ = cpu_to_le32(r_value);
3946 			addr += cache_hdr->read_ctrl.read_addr_stride;
3947 		}
3948 		t_value += cache_hdr->addr_ctrl.tag_value_stride;
3949 	}
3950 	*d_ptr = data_ptr;
3951 }
3952 
3953 static void
qla82xx_minidump_process_queue(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3954 qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3955 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3956 {
3957 	struct qla_hw_data *ha = vha->hw;
3958 	uint32_t s_addr, r_addr;
3959 	uint32_t r_stride, r_value, r_cnt, qid = 0;
3960 	uint32_t i, k, loop_cnt;
3961 	struct qla82xx_md_entry_queue *q_hdr;
3962 	__le32 *data_ptr = *d_ptr;
3963 
3964 	q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3965 	s_addr = q_hdr->select_addr;
3966 	r_cnt = q_hdr->rd_strd.read_addr_cnt;
3967 	r_stride = q_hdr->rd_strd.read_addr_stride;
3968 	loop_cnt = q_hdr->op_count;
3969 
3970 	for (i = 0; i < loop_cnt; i++) {
3971 		qla82xx_md_rw_32(ha, s_addr, qid, 1);
3972 		r_addr = q_hdr->read_addr;
3973 		for (k = 0; k < r_cnt; k++) {
3974 			r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3975 			*data_ptr++ = cpu_to_le32(r_value);
3976 			r_addr += r_stride;
3977 		}
3978 		qid += q_hdr->q_strd.queue_id_stride;
3979 	}
3980 	*d_ptr = data_ptr;
3981 }
3982 
3983 static void
qla82xx_minidump_process_rdrom(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)3984 qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
3985 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3986 {
3987 	struct qla_hw_data *ha = vha->hw;
3988 	uint32_t r_addr, r_value;
3989 	uint32_t i, loop_cnt;
3990 	struct qla82xx_md_entry_rdrom *rom_hdr;
3991 	__le32 *data_ptr = *d_ptr;
3992 
3993 	rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
3994 	r_addr = rom_hdr->read_addr;
3995 	loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
3996 
3997 	for (i = 0; i < loop_cnt; i++) {
3998 		qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
3999 		    (r_addr & 0xFFFF0000), 1);
4000 		r_value = qla82xx_md_rw_32(ha,
4001 		    MD_DIRECT_ROM_READ_BASE +
4002 		    (r_addr & 0x0000FFFF), 0, 0);
4003 		*data_ptr++ = cpu_to_le32(r_value);
4004 		r_addr += sizeof(uint32_t);
4005 	}
4006 	*d_ptr = data_ptr;
4007 }
4008 
4009 static int
qla82xx_minidump_process_rdmem(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,__le32 ** d_ptr)4010 qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4011 	qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
4012 {
4013 	struct qla_hw_data *ha = vha->hw;
4014 	uint32_t r_addr, r_value, r_data;
4015 	uint32_t i, j, loop_cnt;
4016 	struct qla82xx_md_entry_rdmem *m_hdr;
4017 	unsigned long flags;
4018 	int rval = QLA_FUNCTION_FAILED;
4019 	__le32 *data_ptr = *d_ptr;
4020 
4021 	m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4022 	r_addr = m_hdr->read_addr;
4023 	loop_cnt = m_hdr->read_data_size/16;
4024 
4025 	if (r_addr & 0xf) {
4026 		ql_log(ql_log_warn, vha, 0xb033,
4027 		    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4028 		return rval;
4029 	}
4030 
4031 	if (m_hdr->read_data_size % 16) {
4032 		ql_log(ql_log_warn, vha, 0xb034,
4033 		    "Read data[0x%x] not multiple of 16 bytes\n",
4034 		    m_hdr->read_data_size);
4035 		return rval;
4036 	}
4037 
4038 	ql_dbg(ql_dbg_p3p, vha, 0xb035,
4039 	    "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4040 	    __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4041 
4042 	write_lock_irqsave(&ha->hw_lock, flags);
4043 	for (i = 0; i < loop_cnt; i++) {
4044 		qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4045 		r_value = 0;
4046 		qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4047 		r_value = MIU_TA_CTL_ENABLE;
4048 		qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4049 		r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4050 		qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4051 
4052 		for (j = 0; j < MAX_CTL_CHECK; j++) {
4053 			r_value = qla82xx_md_rw_32(ha,
4054 			    MD_MIU_TEST_AGT_CTRL, 0, 0);
4055 			if ((r_value & MIU_TA_CTL_BUSY) == 0)
4056 				break;
4057 		}
4058 
4059 		if (j >= MAX_CTL_CHECK) {
4060 			printk_ratelimited(KERN_ERR
4061 			    "failed to read through agent\n");
4062 			write_unlock_irqrestore(&ha->hw_lock, flags);
4063 			return rval;
4064 		}
4065 
4066 		for (j = 0; j < 4; j++) {
4067 			r_data = qla82xx_md_rw_32(ha,
4068 			    MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4069 			*data_ptr++ = cpu_to_le32(r_data);
4070 		}
4071 		r_addr += 16;
4072 	}
4073 	write_unlock_irqrestore(&ha->hw_lock, flags);
4074 	*d_ptr = data_ptr;
4075 	return QLA_SUCCESS;
4076 }
4077 
4078 int
qla82xx_validate_template_chksum(scsi_qla_host_t * vha)4079 qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4080 {
4081 	struct qla_hw_data *ha = vha->hw;
4082 	uint64_t chksum = 0;
4083 	uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4084 	int count = ha->md_template_size/sizeof(uint32_t);
4085 
4086 	while (count-- > 0)
4087 		chksum += *d_ptr++;
4088 	while (chksum >> 32)
4089 		chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4090 	return ~chksum;
4091 }
4092 
4093 static void
qla82xx_mark_entry_skipped(scsi_qla_host_t * vha,qla82xx_md_entry_hdr_t * entry_hdr,int index)4094 qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4095 	qla82xx_md_entry_hdr_t *entry_hdr, int index)
4096 {
4097 	entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4098 	ql_dbg(ql_dbg_p3p, vha, 0xb036,
4099 	    "Skipping entry[%d]: "
4100 	    "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4101 	    index, entry_hdr->entry_type,
4102 	    entry_hdr->d_ctrl.entry_capture_mask);
4103 }
4104 
4105 int
qla82xx_md_collect(scsi_qla_host_t * vha)4106 qla82xx_md_collect(scsi_qla_host_t *vha)
4107 {
4108 	struct qla_hw_data *ha = vha->hw;
4109 	int no_entry_hdr = 0;
4110 	qla82xx_md_entry_hdr_t *entry_hdr;
4111 	struct qla82xx_md_template_hdr *tmplt_hdr;
4112 	__le32 *data_ptr;
4113 	uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4114 	int i = 0, rval = QLA_FUNCTION_FAILED;
4115 
4116 	tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4117 	data_ptr = ha->md_dump;
4118 
4119 	if (ha->fw_dumped) {
4120 		ql_log(ql_log_warn, vha, 0xb037,
4121 		    "Firmware has been previously dumped (%p) "
4122 		    "-- ignoring request.\n", ha->fw_dump);
4123 		goto md_failed;
4124 	}
4125 
4126 	ha->fw_dumped = false;
4127 
4128 	if (!ha->md_tmplt_hdr || !ha->md_dump) {
4129 		ql_log(ql_log_warn, vha, 0xb038,
4130 		    "Memory not allocated for minidump capture\n");
4131 		goto md_failed;
4132 	}
4133 
4134 	if (ha->flags.isp82xx_no_md_cap) {
4135 		ql_log(ql_log_warn, vha, 0xb054,
4136 		    "Forced reset from application, "
4137 		    "ignore minidump capture\n");
4138 		ha->flags.isp82xx_no_md_cap = 0;
4139 		goto md_failed;
4140 	}
4141 
4142 	if (qla82xx_validate_template_chksum(vha)) {
4143 		ql_log(ql_log_info, vha, 0xb039,
4144 		    "Template checksum validation error\n");
4145 		goto md_failed;
4146 	}
4147 
4148 	no_entry_hdr = tmplt_hdr->num_of_entries;
4149 	ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4150 	    "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4151 
4152 	ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4153 	    "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4154 
4155 	f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4156 
4157 	/* Validate whether required debug level is set */
4158 	if ((f_capture_mask & 0x3) != 0x3) {
4159 		ql_log(ql_log_warn, vha, 0xb03c,
4160 		    "Minimum required capture mask[0x%x] level not set\n",
4161 		    f_capture_mask);
4162 		goto md_failed;
4163 	}
4164 	tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4165 
4166 	tmplt_hdr->driver_info[0] = vha->host_no;
4167 	tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4168 	    (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4169 	    QLA_DRIVER_BETA_VER;
4170 
4171 	total_data_size = ha->md_dump_size;
4172 
4173 	ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4174 	    "Total minidump data_size 0x%x to be captured\n", total_data_size);
4175 
4176 	/* Check whether template obtained is valid */
4177 	if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4178 		ql_log(ql_log_warn, vha, 0xb04e,
4179 		    "Bad template header entry type: 0x%x obtained\n",
4180 		    tmplt_hdr->entry_type);
4181 		goto md_failed;
4182 	}
4183 
4184 	entry_hdr = (qla82xx_md_entry_hdr_t *)
4185 	    (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4186 
4187 	/* Walk through the entry headers */
4188 	for (i = 0; i < no_entry_hdr; i++) {
4189 
4190 		if (data_collected > total_data_size) {
4191 			ql_log(ql_log_warn, vha, 0xb03e,
4192 			    "More MiniDump data collected: [0x%x]\n",
4193 			    data_collected);
4194 			goto md_failed;
4195 		}
4196 
4197 		if (!(entry_hdr->d_ctrl.entry_capture_mask &
4198 		    ql2xmdcapmask)) {
4199 			entry_hdr->d_ctrl.driver_flags |=
4200 			    QLA82XX_DBG_SKIPPED_FLAG;
4201 			ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4202 			    "Skipping entry[%d]: "
4203 			    "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4204 			    i, entry_hdr->entry_type,
4205 			    entry_hdr->d_ctrl.entry_capture_mask);
4206 			goto skip_nxt_entry;
4207 		}
4208 
4209 		ql_dbg(ql_dbg_p3p, vha, 0xb040,
4210 		    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4211 		    "entry_type: 0x%x, capture_mask: 0x%x\n",
4212 		    __func__, i, data_ptr, entry_hdr,
4213 		    entry_hdr->entry_type,
4214 		    entry_hdr->d_ctrl.entry_capture_mask);
4215 
4216 		ql_dbg(ql_dbg_p3p, vha, 0xb041,
4217 		    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4218 		    data_collected, (ha->md_dump_size - data_collected));
4219 
4220 		/* Decode the entry type and take
4221 		 * required action to capture debug data */
4222 		switch (entry_hdr->entry_type) {
4223 		case QLA82XX_RDEND:
4224 			qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4225 			break;
4226 		case QLA82XX_CNTRL:
4227 			rval = qla82xx_minidump_process_control(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_RDCRB:
4235 			qla82xx_minidump_process_rdcrb(vha,
4236 			    entry_hdr, &data_ptr);
4237 			break;
4238 		case QLA82XX_RDMEM:
4239 			rval = qla82xx_minidump_process_rdmem(vha,
4240 			    entry_hdr, &data_ptr);
4241 			if (rval != QLA_SUCCESS) {
4242 				qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4243 				goto md_failed;
4244 			}
4245 			break;
4246 		case QLA82XX_BOARD:
4247 		case QLA82XX_RDROM:
4248 			qla82xx_minidump_process_rdrom(vha,
4249 			    entry_hdr, &data_ptr);
4250 			break;
4251 		case QLA82XX_L2DTG:
4252 		case QLA82XX_L2ITG:
4253 		case QLA82XX_L2DAT:
4254 		case QLA82XX_L2INS:
4255 			rval = qla82xx_minidump_process_l2tag(vha,
4256 			    entry_hdr, &data_ptr);
4257 			if (rval != QLA_SUCCESS) {
4258 				qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4259 				goto md_failed;
4260 			}
4261 			break;
4262 		case QLA82XX_L1DAT:
4263 		case QLA82XX_L1INS:
4264 			qla82xx_minidump_process_l1cache(vha,
4265 			    entry_hdr, &data_ptr);
4266 			break;
4267 		case QLA82XX_RDOCM:
4268 			qla82xx_minidump_process_rdocm(vha,
4269 			    entry_hdr, &data_ptr);
4270 			break;
4271 		case QLA82XX_RDMUX:
4272 			qla82xx_minidump_process_rdmux(vha,
4273 			    entry_hdr, &data_ptr);
4274 			break;
4275 		case QLA82XX_QUEUE:
4276 			qla82xx_minidump_process_queue(vha,
4277 			    entry_hdr, &data_ptr);
4278 			break;
4279 		case QLA82XX_RDNOP:
4280 		default:
4281 			qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4282 			break;
4283 		}
4284 
4285 		ql_dbg(ql_dbg_p3p, vha, 0xb042,
4286 		    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4287 
4288 		data_collected = (uint8_t *)data_ptr -
4289 		    (uint8_t *)ha->md_dump;
4290 skip_nxt_entry:
4291 		entry_hdr = (qla82xx_md_entry_hdr_t *)
4292 		    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4293 	}
4294 
4295 	if (data_collected != total_data_size) {
4296 		ql_dbg(ql_dbg_p3p, vha, 0xb043,
4297 		    "MiniDump data mismatch: Data collected: [0x%x],"
4298 		    "total_data_size:[0x%x]\n",
4299 		    data_collected, total_data_size);
4300 		goto md_failed;
4301 	}
4302 
4303 	ql_log(ql_log_info, vha, 0xb044,
4304 	    "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4305 	    vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4306 	ha->fw_dumped = true;
4307 	qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4308 
4309 md_failed:
4310 	return rval;
4311 }
4312 
4313 int
qla82xx_md_alloc(scsi_qla_host_t * vha)4314 qla82xx_md_alloc(scsi_qla_host_t *vha)
4315 {
4316 	struct qla_hw_data *ha = vha->hw;
4317 	int i, k;
4318 	struct qla82xx_md_template_hdr *tmplt_hdr;
4319 
4320 	tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4321 
4322 	if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4323 		ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4324 		ql_log(ql_log_info, vha, 0xb045,
4325 		    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4326 		    ql2xmdcapmask);
4327 	}
4328 
4329 	for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4330 		if (i & ql2xmdcapmask)
4331 			ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4332 	}
4333 
4334 	if (ha->md_dump) {
4335 		ql_log(ql_log_warn, vha, 0xb046,
4336 		    "Firmware dump previously allocated.\n");
4337 		return 1;
4338 	}
4339 
4340 	ha->md_dump = vmalloc(ha->md_dump_size);
4341 	if (ha->md_dump == NULL) {
4342 		ql_log(ql_log_warn, vha, 0xb047,
4343 		    "Unable to allocate memory for Minidump size "
4344 		    "(0x%x).\n", ha->md_dump_size);
4345 		return 1;
4346 	}
4347 	return 0;
4348 }
4349 
4350 void
qla82xx_md_free(scsi_qla_host_t * vha)4351 qla82xx_md_free(scsi_qla_host_t *vha)
4352 {
4353 	struct qla_hw_data *ha = vha->hw;
4354 
4355 	/* Release the template header allocated */
4356 	if (ha->md_tmplt_hdr) {
4357 		ql_log(ql_log_info, vha, 0xb048,
4358 		    "Free MiniDump template: %p, size (%d KB)\n",
4359 		    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4360 		dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4361 		    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4362 		ha->md_tmplt_hdr = NULL;
4363 	}
4364 
4365 	/* Release the template data buffer allocated */
4366 	if (ha->md_dump) {
4367 		ql_log(ql_log_info, vha, 0xb049,
4368 		    "Free MiniDump memory: %p, size (%d KB)\n",
4369 		    ha->md_dump, ha->md_dump_size / 1024);
4370 		vfree(ha->md_dump);
4371 		ha->md_dump_size = 0;
4372 		ha->md_dump = NULL;
4373 	}
4374 }
4375 
4376 void
qla82xx_md_prep(scsi_qla_host_t * vha)4377 qla82xx_md_prep(scsi_qla_host_t *vha)
4378 {
4379 	struct qla_hw_data *ha = vha->hw;
4380 	int rval;
4381 
4382 	/* Get Minidump template size */
4383 	rval = qla82xx_md_get_template_size(vha);
4384 	if (rval == QLA_SUCCESS) {
4385 		ql_log(ql_log_info, vha, 0xb04a,
4386 		    "MiniDump Template size obtained (%d KB)\n",
4387 		    ha->md_template_size / 1024);
4388 
4389 		/* Get Minidump template */
4390 		if (IS_QLA8044(ha))
4391 			rval = qla8044_md_get_template(vha);
4392 		else
4393 			rval = qla82xx_md_get_template(vha);
4394 
4395 		if (rval == QLA_SUCCESS) {
4396 			ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4397 			    "MiniDump Template obtained\n");
4398 
4399 			/* Allocate memory for minidump */
4400 			rval = qla82xx_md_alloc(vha);
4401 			if (rval == QLA_SUCCESS)
4402 				ql_log(ql_log_info, vha, 0xb04c,
4403 				    "MiniDump memory allocated (%d KB)\n",
4404 				    ha->md_dump_size / 1024);
4405 			else {
4406 				ql_log(ql_log_info, vha, 0xb04d,
4407 				    "Free MiniDump template: %p, size: (%d KB)\n",
4408 				    ha->md_tmplt_hdr,
4409 				    ha->md_template_size / 1024);
4410 				dma_free_coherent(&ha->pdev->dev,
4411 				    ha->md_template_size,
4412 				    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4413 				ha->md_tmplt_hdr = NULL;
4414 			}
4415 
4416 		}
4417 	}
4418 }
4419 
4420 int
qla82xx_beacon_on(struct scsi_qla_host * vha)4421 qla82xx_beacon_on(struct scsi_qla_host *vha)
4422 {
4423 
4424 	int rval;
4425 	struct qla_hw_data *ha = vha->hw;
4426 
4427 	qla82xx_idc_lock(ha);
4428 	rval = qla82xx_mbx_beacon_ctl(vha, 1);
4429 
4430 	if (rval) {
4431 		ql_log(ql_log_warn, vha, 0xb050,
4432 		    "mbx set led config failed in %s\n", __func__);
4433 		goto exit;
4434 	}
4435 	ha->beacon_blink_led = 1;
4436 exit:
4437 	qla82xx_idc_unlock(ha);
4438 	return rval;
4439 }
4440 
4441 int
qla82xx_beacon_off(struct scsi_qla_host * vha)4442 qla82xx_beacon_off(struct scsi_qla_host *vha)
4443 {
4444 
4445 	int rval;
4446 	struct qla_hw_data *ha = vha->hw;
4447 
4448 	qla82xx_idc_lock(ha);
4449 	rval = qla82xx_mbx_beacon_ctl(vha, 0);
4450 
4451 	if (rval) {
4452 		ql_log(ql_log_warn, vha, 0xb051,
4453 		    "mbx set led config failed in %s\n", __func__);
4454 		goto exit;
4455 	}
4456 	ha->beacon_blink_led = 0;
4457 exit:
4458 	qla82xx_idc_unlock(ha);
4459 	return rval;
4460 }
4461 
4462 void
qla82xx_fw_dump(scsi_qla_host_t * vha)4463 qla82xx_fw_dump(scsi_qla_host_t *vha)
4464 {
4465 	struct qla_hw_data *ha = vha->hw;
4466 
4467 	if (!ha->allow_cna_fw_dump)
4468 		return;
4469 
4470 	scsi_block_requests(vha->host);
4471 	ha->flags.isp82xx_no_md_cap = 1;
4472 	qla82xx_idc_lock(ha);
4473 	qla82xx_set_reset_owner(vha);
4474 	qla82xx_idc_unlock(ha);
4475 	qla2x00_wait_for_chip_reset(vha);
4476 	scsi_unblock_requests(vha->host);
4477 }
4478