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Merge branch 'linus' into perf/core, to fix conflicts
[deliverable/linux.git] / drivers / scsi / qla4xxx / ql4_nx.c
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7 #include <linux/delay.h>
8 #include <linux/io.h>
9 #include <linux/pci.h>
10 #include <linux/ratelimit.h>
11 #include "ql4_def.h"
12 #include "ql4_glbl.h"
13 #include "ql4_inline.h"
14
15 #include <asm-generic/io-64-nonatomic-lo-hi.h>
16
17 #define TIMEOUT_100_MS 100
18 #define MASK(n) DMA_BIT_MASK(n)
19 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
20 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
21 #define MS_WIN(addr) (addr & 0x0ffc0000)
22 #define QLA82XX_PCI_MN_2M (0)
23 #define QLA82XX_PCI_MS_2M (0x80000)
24 #define QLA82XX_PCI_OCM0_2M (0xc0000)
25 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
26 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
27
28 /* CRB window related */
29 #define CRB_BLK(off) ((off >> 20) & 0x3f)
30 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
31 #define CRB_WINDOW_2M (0x130060)
32 #define CRB_HI(off) ((qla4_82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
33 ((off) & 0xf0000))
34 #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
35 #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
36 #define CRB_INDIRECT_2M (0x1e0000UL)
37
38 static inline void __iomem *
39 qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off)
40 {
41 if ((off < ha->first_page_group_end) &&
42 (off >= ha->first_page_group_start))
43 return (void __iomem *)(ha->nx_pcibase + off);
44
45 return NULL;
46 }
47
48 #define MAX_CRB_XFORM 60
49 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
50 static int qla4_8xxx_crb_table_initialized;
51
52 #define qla4_8xxx_crb_addr_transform(name) \
53 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
54 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
55 static void
56 qla4_82xx_crb_addr_transform_setup(void)
57 {
58 qla4_8xxx_crb_addr_transform(XDMA);
59 qla4_8xxx_crb_addr_transform(TIMR);
60 qla4_8xxx_crb_addr_transform(SRE);
61 qla4_8xxx_crb_addr_transform(SQN3);
62 qla4_8xxx_crb_addr_transform(SQN2);
63 qla4_8xxx_crb_addr_transform(SQN1);
64 qla4_8xxx_crb_addr_transform(SQN0);
65 qla4_8xxx_crb_addr_transform(SQS3);
66 qla4_8xxx_crb_addr_transform(SQS2);
67 qla4_8xxx_crb_addr_transform(SQS1);
68 qla4_8xxx_crb_addr_transform(SQS0);
69 qla4_8xxx_crb_addr_transform(RPMX7);
70 qla4_8xxx_crb_addr_transform(RPMX6);
71 qla4_8xxx_crb_addr_transform(RPMX5);
72 qla4_8xxx_crb_addr_transform(RPMX4);
73 qla4_8xxx_crb_addr_transform(RPMX3);
74 qla4_8xxx_crb_addr_transform(RPMX2);
75 qla4_8xxx_crb_addr_transform(RPMX1);
76 qla4_8xxx_crb_addr_transform(RPMX0);
77 qla4_8xxx_crb_addr_transform(ROMUSB);
78 qla4_8xxx_crb_addr_transform(SN);
79 qla4_8xxx_crb_addr_transform(QMN);
80 qla4_8xxx_crb_addr_transform(QMS);
81 qla4_8xxx_crb_addr_transform(PGNI);
82 qla4_8xxx_crb_addr_transform(PGND);
83 qla4_8xxx_crb_addr_transform(PGN3);
84 qla4_8xxx_crb_addr_transform(PGN2);
85 qla4_8xxx_crb_addr_transform(PGN1);
86 qla4_8xxx_crb_addr_transform(PGN0);
87 qla4_8xxx_crb_addr_transform(PGSI);
88 qla4_8xxx_crb_addr_transform(PGSD);
89 qla4_8xxx_crb_addr_transform(PGS3);
90 qla4_8xxx_crb_addr_transform(PGS2);
91 qla4_8xxx_crb_addr_transform(PGS1);
92 qla4_8xxx_crb_addr_transform(PGS0);
93 qla4_8xxx_crb_addr_transform(PS);
94 qla4_8xxx_crb_addr_transform(PH);
95 qla4_8xxx_crb_addr_transform(NIU);
96 qla4_8xxx_crb_addr_transform(I2Q);
97 qla4_8xxx_crb_addr_transform(EG);
98 qla4_8xxx_crb_addr_transform(MN);
99 qla4_8xxx_crb_addr_transform(MS);
100 qla4_8xxx_crb_addr_transform(CAS2);
101 qla4_8xxx_crb_addr_transform(CAS1);
102 qla4_8xxx_crb_addr_transform(CAS0);
103 qla4_8xxx_crb_addr_transform(CAM);
104 qla4_8xxx_crb_addr_transform(C2C1);
105 qla4_8xxx_crb_addr_transform(C2C0);
106 qla4_8xxx_crb_addr_transform(SMB);
107 qla4_8xxx_crb_addr_transform(OCM0);
108 qla4_8xxx_crb_addr_transform(I2C0);
109
110 qla4_8xxx_crb_table_initialized = 1;
111 }
112
113 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
114 {{{0, 0, 0, 0} } }, /* 0: PCI */
115 {{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */
116 {1, 0x0110000, 0x0120000, 0x130000},
117 {1, 0x0120000, 0x0122000, 0x124000},
118 {1, 0x0130000, 0x0132000, 0x126000},
119 {1, 0x0140000, 0x0142000, 0x128000},
120 {1, 0x0150000, 0x0152000, 0x12a000},
121 {1, 0x0160000, 0x0170000, 0x110000},
122 {1, 0x0170000, 0x0172000, 0x12e000},
123 {0, 0x0000000, 0x0000000, 0x000000},
124 {0, 0x0000000, 0x0000000, 0x000000},
125 {0, 0x0000000, 0x0000000, 0x000000},
126 {0, 0x0000000, 0x0000000, 0x000000},
127 {0, 0x0000000, 0x0000000, 0x000000},
128 {0, 0x0000000, 0x0000000, 0x000000},
129 {1, 0x01e0000, 0x01e0800, 0x122000},
130 {0, 0x0000000, 0x0000000, 0x000000} } },
131 {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
132 {{{0, 0, 0, 0} } }, /* 3: */
133 {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
134 {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */
135 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */
136 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */
137 {{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */
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 {0, 0x0000000, 0x0000000, 0x000000},
150 {0, 0x0000000, 0x0000000, 0x000000},
151 {0, 0x0000000, 0x0000000, 0x000000},
152 {1, 0x08f0000, 0x08f2000, 0x172000} } },
153 {{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/
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 {0, 0x0000000, 0x0000000, 0x000000},
166 {0, 0x0000000, 0x0000000, 0x000000},
167 {0, 0x0000000, 0x0000000, 0x000000},
168 {1, 0x09f0000, 0x09f2000, 0x176000} } },
169 {{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/
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 {0, 0x0000000, 0x0000000, 0x000000},
182 {0, 0x0000000, 0x0000000, 0x000000},
183 {0, 0x0000000, 0x0000000, 0x000000},
184 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
185 {{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/
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 {0, 0x0000000, 0x0000000, 0x000000},
198 {0, 0x0000000, 0x0000000, 0x000000},
199 {0, 0x0000000, 0x0000000, 0x000000},
200 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
201 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
202 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
203 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
204 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
205 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
206 {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
207 {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
208 {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
209 {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
210 {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
211 {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
212 {{{0, 0, 0, 0} } }, /* 23: */
213 {{{0, 0, 0, 0} } }, /* 24: */
214 {{{0, 0, 0, 0} } }, /* 25: */
215 {{{0, 0, 0, 0} } }, /* 26: */
216 {{{0, 0, 0, 0} } }, /* 27: */
217 {{{0, 0, 0, 0} } }, /* 28: */
218 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
219 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
220 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
221 {{{0} } }, /* 32: PCI */
222 {{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */
223 {1, 0x2110000, 0x2120000, 0x130000},
224 {1, 0x2120000, 0x2122000, 0x124000},
225 {1, 0x2130000, 0x2132000, 0x126000},
226 {1, 0x2140000, 0x2142000, 0x128000},
227 {1, 0x2150000, 0x2152000, 0x12a000},
228 {1, 0x2160000, 0x2170000, 0x110000},
229 {1, 0x2170000, 0x2172000, 0x12e000},
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 {0, 0x0000000, 0x0000000, 0x000000},
236 {0, 0x0000000, 0x0000000, 0x000000},
237 {0, 0x0000000, 0x0000000, 0x000000} } },
238 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
239 {{{0} } }, /* 35: */
240 {{{0} } }, /* 36: */
241 {{{0} } }, /* 37: */
242 {{{0} } }, /* 38: */
243 {{{0} } }, /* 39: */
244 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
245 {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
246 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
247 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
248 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
249 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
250 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
251 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
252 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
253 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
254 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
255 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
256 {{{0} } }, /* 52: */
257 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
258 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
259 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
260 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
261 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
262 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
263 {{{0} } }, /* 59: I2C0 */
264 {{{0} } }, /* 60: I2C1 */
265 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
266 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
267 {{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */
268 };
269
270 /*
271 * top 12 bits of crb internal address (hub, agent)
272 */
273 static unsigned qla4_82xx_crb_hub_agt[64] = {
274 0,
275 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
276 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
278 0,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
280 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
291 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
293 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
294 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
296 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
298 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
299 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
300 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
301 0,
302 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
303 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
304 0,
305 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
306 0,
307 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
308 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
309 0,
310 0,
311 0,
312 0,
313 0,
314 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
315 0,
316 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
317 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
318 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
321 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
323 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
324 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
325 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
326 0,
327 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
328 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
329 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
330 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
331 0,
332 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
333 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
334 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
335 0,
336 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
337 0,
338 };
339
340 /* Device states */
341 static char *qdev_state[] = {
342 "Unknown",
343 "Cold",
344 "Initializing",
345 "Ready",
346 "Need Reset",
347 "Need Quiescent",
348 "Failed",
349 "Quiescent",
350 };
351
352 /*
353 * In: 'off' is offset from CRB space in 128M pci map
354 * Out: 'off' is 2M pci map addr
355 * side effect: lock crb window
356 */
357 static void
358 qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
359 {
360 u32 win_read;
361
362 ha->crb_win = CRB_HI(*off);
363 writel(ha->crb_win,
364 (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
365
366 /* Read back value to make sure write has gone through before trying
367 * to use it. */
368 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
369 if (win_read != ha->crb_win) {
370 DEBUG2(ql4_printk(KERN_INFO, ha,
371 "%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
372 " off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
373 }
374 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
375 }
376
377 void
378 qla4_82xx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
379 {
380 unsigned long flags = 0;
381 int rv;
382
383 rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
384
385 BUG_ON(rv == -1);
386
387 if (rv == 1) {
388 write_lock_irqsave(&ha->hw_lock, flags);
389 qla4_82xx_crb_win_lock(ha);
390 qla4_82xx_pci_set_crbwindow_2M(ha, &off);
391 }
392
393 writel(data, (void __iomem *)off);
394
395 if (rv == 1) {
396 qla4_82xx_crb_win_unlock(ha);
397 write_unlock_irqrestore(&ha->hw_lock, flags);
398 }
399 }
400
401 uint32_t qla4_82xx_rd_32(struct scsi_qla_host *ha, ulong off)
402 {
403 unsigned long flags = 0;
404 int rv;
405 u32 data;
406
407 rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
408
409 BUG_ON(rv == -1);
410
411 if (rv == 1) {
412 write_lock_irqsave(&ha->hw_lock, flags);
413 qla4_82xx_crb_win_lock(ha);
414 qla4_82xx_pci_set_crbwindow_2M(ha, &off);
415 }
416 data = readl((void __iomem *)off);
417
418 if (rv == 1) {
419 qla4_82xx_crb_win_unlock(ha);
420 write_unlock_irqrestore(&ha->hw_lock, flags);
421 }
422 return data;
423 }
424
425 /* Minidump related functions */
426 int qla4_82xx_md_rd_32(struct scsi_qla_host *ha, uint32_t off, uint32_t *data)
427 {
428 uint32_t win_read, off_value;
429 int rval = QLA_SUCCESS;
430
431 off_value = off & 0xFFFF0000;
432 writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
433
434 /*
435 * Read back value to make sure write has gone through before trying
436 * to use it.
437 */
438 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
439 if (win_read != off_value) {
440 DEBUG2(ql4_printk(KERN_INFO, ha,
441 "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
442 __func__, off_value, win_read, off));
443 rval = QLA_ERROR;
444 } else {
445 off_value = off & 0x0000FFFF;
446 *data = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
447 ha->nx_pcibase));
448 }
449 return rval;
450 }
451
452 int qla4_82xx_md_wr_32(struct scsi_qla_host *ha, uint32_t off, uint32_t data)
453 {
454 uint32_t win_read, off_value;
455 int rval = QLA_SUCCESS;
456
457 off_value = off & 0xFFFF0000;
458 writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
459
460 /* Read back value to make sure write has gone through before trying
461 * to use it.
462 */
463 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
464 if (win_read != off_value) {
465 DEBUG2(ql4_printk(KERN_INFO, ha,
466 "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
467 __func__, off_value, win_read, off));
468 rval = QLA_ERROR;
469 } else {
470 off_value = off & 0x0000FFFF;
471 writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
472 ha->nx_pcibase));
473 }
474 return rval;
475 }
476
477 #define CRB_WIN_LOCK_TIMEOUT 100000000
478
479 int qla4_82xx_crb_win_lock(struct scsi_qla_host *ha)
480 {
481 int i;
482 int done = 0, timeout = 0;
483
484 while (!done) {
485 /* acquire semaphore3 from PCI HW block */
486 done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
487 if (done == 1)
488 break;
489 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
490 return -1;
491
492 timeout++;
493
494 /* Yield CPU */
495 if (!in_interrupt())
496 schedule();
497 else {
498 for (i = 0; i < 20; i++)
499 cpu_relax(); /*This a nop instr on i386*/
500 }
501 }
502 qla4_82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
503 return 0;
504 }
505
506 void qla4_82xx_crb_win_unlock(struct scsi_qla_host *ha)
507 {
508 qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
509 }
510
511 #define IDC_LOCK_TIMEOUT 100000000
512
513 /**
514 * qla4_82xx_idc_lock - hw_lock
515 * @ha: pointer to adapter structure
516 *
517 * General purpose lock used to synchronize access to
518 * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
519 **/
520 int qla4_82xx_idc_lock(struct scsi_qla_host *ha)
521 {
522 int i;
523 int done = 0, timeout = 0;
524
525 while (!done) {
526 /* acquire semaphore5 from PCI HW block */
527 done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
528 if (done == 1)
529 break;
530 if (timeout >= IDC_LOCK_TIMEOUT)
531 return -1;
532
533 timeout++;
534
535 /* Yield CPU */
536 if (!in_interrupt())
537 schedule();
538 else {
539 for (i = 0; i < 20; i++)
540 cpu_relax(); /*This a nop instr on i386*/
541 }
542 }
543 return 0;
544 }
545
546 void qla4_82xx_idc_unlock(struct scsi_qla_host *ha)
547 {
548 qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
549 }
550
551 int
552 qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
553 {
554 struct crb_128M_2M_sub_block_map *m;
555
556 if (*off >= QLA82XX_CRB_MAX)
557 return -1;
558
559 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
560 *off = (*off - QLA82XX_PCI_CAMQM) +
561 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
562 return 0;
563 }
564
565 if (*off < QLA82XX_PCI_CRBSPACE)
566 return -1;
567
568 *off -= QLA82XX_PCI_CRBSPACE;
569 /*
570 * Try direct map
571 */
572
573 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
574
575 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
576 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
577 return 0;
578 }
579
580 /*
581 * Not in direct map, use crb window
582 */
583 return 1;
584 }
585
586 /*
587 * check memory access boundary.
588 * used by test agent. support ddr access only for now
589 */
590 static unsigned long
591 qla4_82xx_pci_mem_bound_check(struct scsi_qla_host *ha,
592 unsigned long long addr, int size)
593 {
594 if (!QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
595 QLA8XXX_ADDR_DDR_NET_MAX) ||
596 !QLA8XXX_ADDR_IN_RANGE(addr + size - 1,
597 QLA8XXX_ADDR_DDR_NET, QLA8XXX_ADDR_DDR_NET_MAX) ||
598 ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
599 return 0;
600 }
601 return 1;
602 }
603
604 static int qla4_82xx_pci_set_window_warning_count;
605
606 static unsigned long
607 qla4_82xx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
608 {
609 int window;
610 u32 win_read;
611
612 if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
613 QLA8XXX_ADDR_DDR_NET_MAX)) {
614 /* DDR network side */
615 window = MN_WIN(addr);
616 ha->ddr_mn_window = window;
617 qla4_82xx_wr_32(ha, ha->mn_win_crb |
618 QLA82XX_PCI_CRBSPACE, window);
619 win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
620 QLA82XX_PCI_CRBSPACE);
621 if ((win_read << 17) != window) {
622 ql4_printk(KERN_WARNING, ha,
623 "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
624 __func__, window, win_read);
625 }
626 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
627 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
628 QLA8XXX_ADDR_OCM0_MAX)) {
629 unsigned int temp1;
630 /* if bits 19:18&17:11 are on */
631 if ((addr & 0x00ff800) == 0xff800) {
632 printk("%s: QM access not handled.\n", __func__);
633 addr = -1UL;
634 }
635
636 window = OCM_WIN(addr);
637 ha->ddr_mn_window = window;
638 qla4_82xx_wr_32(ha, ha->mn_win_crb |
639 QLA82XX_PCI_CRBSPACE, window);
640 win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
641 QLA82XX_PCI_CRBSPACE);
642 temp1 = ((window & 0x1FF) << 7) |
643 ((window & 0x0FFFE0000) >> 17);
644 if (win_read != temp1) {
645 printk("%s: Written OCMwin (0x%x) != Read"
646 " OCMwin (0x%x)\n", __func__, temp1, win_read);
647 }
648 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
649
650 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
651 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
652 /* QDR network side */
653 window = MS_WIN(addr);
654 ha->qdr_sn_window = window;
655 qla4_82xx_wr_32(ha, ha->ms_win_crb |
656 QLA82XX_PCI_CRBSPACE, window);
657 win_read = qla4_82xx_rd_32(ha,
658 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
659 if (win_read != window) {
660 printk("%s: Written MSwin (0x%x) != Read "
661 "MSwin (0x%x)\n", __func__, window, win_read);
662 }
663 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
664
665 } else {
666 /*
667 * peg gdb frequently accesses memory that doesn't exist,
668 * this limits the chit chat so debugging isn't slowed down.
669 */
670 if ((qla4_82xx_pci_set_window_warning_count++ < 8) ||
671 (qla4_82xx_pci_set_window_warning_count%64 == 0)) {
672 printk("%s: Warning:%s Unknown address range!\n",
673 __func__, DRIVER_NAME);
674 }
675 addr = -1UL;
676 }
677 return addr;
678 }
679
680 /* check if address is in the same windows as the previous access */
681 static int qla4_82xx_pci_is_same_window(struct scsi_qla_host *ha,
682 unsigned long long addr)
683 {
684 int window;
685 unsigned long long qdr_max;
686
687 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
688
689 if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
690 QLA8XXX_ADDR_DDR_NET_MAX)) {
691 /* DDR network side */
692 BUG(); /* MN access can not come here */
693 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
694 QLA8XXX_ADDR_OCM0_MAX)) {
695 return 1;
696 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM1,
697 QLA8XXX_ADDR_OCM1_MAX)) {
698 return 1;
699 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
700 qdr_max)) {
701 /* QDR network side */
702 window = ((addr - QLA8XXX_ADDR_QDR_NET) >> 22) & 0x3f;
703 if (ha->qdr_sn_window == window)
704 return 1;
705 }
706
707 return 0;
708 }
709
710 static int qla4_82xx_pci_mem_read_direct(struct scsi_qla_host *ha,
711 u64 off, void *data, int size)
712 {
713 unsigned long flags;
714 void __iomem *addr;
715 int ret = 0;
716 u64 start;
717 void __iomem *mem_ptr = NULL;
718 unsigned long mem_base;
719 unsigned long mem_page;
720
721 write_lock_irqsave(&ha->hw_lock, flags);
722
723 /*
724 * If attempting to access unknown address or straddle hw windows,
725 * do not access.
726 */
727 start = qla4_82xx_pci_set_window(ha, off);
728 if ((start == -1UL) ||
729 (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
730 write_unlock_irqrestore(&ha->hw_lock, flags);
731 printk(KERN_ERR"%s out of bound pci memory access. "
732 "offset is 0x%llx\n", DRIVER_NAME, off);
733 return -1;
734 }
735
736 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
737 if (!addr) {
738 write_unlock_irqrestore(&ha->hw_lock, flags);
739 mem_base = pci_resource_start(ha->pdev, 0);
740 mem_page = start & PAGE_MASK;
741 /* Map two pages whenever user tries to access addresses in two
742 consecutive pages.
743 */
744 if (mem_page != ((start + size - 1) & PAGE_MASK))
745 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
746 else
747 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
748
749 if (mem_ptr == NULL) {
750 *(u8 *)data = 0;
751 return -1;
752 }
753 addr = mem_ptr;
754 addr += start & (PAGE_SIZE - 1);
755 write_lock_irqsave(&ha->hw_lock, flags);
756 }
757
758 switch (size) {
759 case 1:
760 *(u8 *)data = readb(addr);
761 break;
762 case 2:
763 *(u16 *)data = readw(addr);
764 break;
765 case 4:
766 *(u32 *)data = readl(addr);
767 break;
768 case 8:
769 *(u64 *)data = readq(addr);
770 break;
771 default:
772 ret = -1;
773 break;
774 }
775 write_unlock_irqrestore(&ha->hw_lock, flags);
776
777 if (mem_ptr)
778 iounmap(mem_ptr);
779 return ret;
780 }
781
782 static int
783 qla4_82xx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
784 void *data, int size)
785 {
786 unsigned long flags;
787 void __iomem *addr;
788 int ret = 0;
789 u64 start;
790 void __iomem *mem_ptr = NULL;
791 unsigned long mem_base;
792 unsigned long mem_page;
793
794 write_lock_irqsave(&ha->hw_lock, flags);
795
796 /*
797 * If attempting to access unknown address or straddle hw windows,
798 * do not access.
799 */
800 start = qla4_82xx_pci_set_window(ha, off);
801 if ((start == -1UL) ||
802 (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
803 write_unlock_irqrestore(&ha->hw_lock, flags);
804 printk(KERN_ERR"%s out of bound pci memory access. "
805 "offset is 0x%llx\n", DRIVER_NAME, off);
806 return -1;
807 }
808
809 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
810 if (!addr) {
811 write_unlock_irqrestore(&ha->hw_lock, flags);
812 mem_base = pci_resource_start(ha->pdev, 0);
813 mem_page = start & PAGE_MASK;
814 /* Map two pages whenever user tries to access addresses in two
815 consecutive pages.
816 */
817 if (mem_page != ((start + size - 1) & PAGE_MASK))
818 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
819 else
820 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
821 if (mem_ptr == NULL)
822 return -1;
823
824 addr = mem_ptr;
825 addr += start & (PAGE_SIZE - 1);
826 write_lock_irqsave(&ha->hw_lock, flags);
827 }
828
829 switch (size) {
830 case 1:
831 writeb(*(u8 *)data, addr);
832 break;
833 case 2:
834 writew(*(u16 *)data, addr);
835 break;
836 case 4:
837 writel(*(u32 *)data, addr);
838 break;
839 case 8:
840 writeq(*(u64 *)data, addr);
841 break;
842 default:
843 ret = -1;
844 break;
845 }
846 write_unlock_irqrestore(&ha->hw_lock, flags);
847 if (mem_ptr)
848 iounmap(mem_ptr);
849 return ret;
850 }
851
852 #define MTU_FUDGE_FACTOR 100
853
854 static unsigned long
855 qla4_82xx_decode_crb_addr(unsigned long addr)
856 {
857 int i;
858 unsigned long base_addr, offset, pci_base;
859
860 if (!qla4_8xxx_crb_table_initialized)
861 qla4_82xx_crb_addr_transform_setup();
862
863 pci_base = ADDR_ERROR;
864 base_addr = addr & 0xfff00000;
865 offset = addr & 0x000fffff;
866
867 for (i = 0; i < MAX_CRB_XFORM; i++) {
868 if (crb_addr_xform[i] == base_addr) {
869 pci_base = i << 20;
870 break;
871 }
872 }
873 if (pci_base == ADDR_ERROR)
874 return pci_base;
875 else
876 return pci_base + offset;
877 }
878
879 static long rom_max_timeout = 100;
880 static long qla4_82xx_rom_lock_timeout = 100;
881
882 static int
883 qla4_82xx_rom_lock(struct scsi_qla_host *ha)
884 {
885 int i;
886 int done = 0, timeout = 0;
887
888 while (!done) {
889 /* acquire semaphore2 from PCI HW block */
890
891 done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
892 if (done == 1)
893 break;
894 if (timeout >= qla4_82xx_rom_lock_timeout)
895 return -1;
896
897 timeout++;
898
899 /* Yield CPU */
900 if (!in_interrupt())
901 schedule();
902 else {
903 for (i = 0; i < 20; i++)
904 cpu_relax(); /*This a nop instr on i386*/
905 }
906 }
907 qla4_82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
908 return 0;
909 }
910
911 static void
912 qla4_82xx_rom_unlock(struct scsi_qla_host *ha)
913 {
914 qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
915 }
916
917 static int
918 qla4_82xx_wait_rom_done(struct scsi_qla_host *ha)
919 {
920 long timeout = 0;
921 long done = 0 ;
922
923 while (done == 0) {
924 done = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
925 done &= 2;
926 timeout++;
927 if (timeout >= rom_max_timeout) {
928 printk("%s: Timeout reached waiting for rom done",
929 DRIVER_NAME);
930 return -1;
931 }
932 }
933 return 0;
934 }
935
936 static int
937 qla4_82xx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
938 {
939 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
940 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
941 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
942 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
943 if (qla4_82xx_wait_rom_done(ha)) {
944 printk("%s: Error waiting for rom done\n", DRIVER_NAME);
945 return -1;
946 }
947 /* reset abyte_cnt and dummy_byte_cnt */
948 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
949 udelay(10);
950 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
951
952 *valp = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
953 return 0;
954 }
955
956 static int
957 qla4_82xx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
958 {
959 int ret, loops = 0;
960
961 while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
962 udelay(100);
963 loops++;
964 }
965 if (loops >= 50000) {
966 ql4_printk(KERN_WARNING, ha, "%s: qla4_82xx_rom_lock failed\n",
967 DRIVER_NAME);
968 return -1;
969 }
970 ret = qla4_82xx_do_rom_fast_read(ha, addr, valp);
971 qla4_82xx_rom_unlock(ha);
972 return ret;
973 }
974
975 /**
976 * This routine does CRB initialize sequence
977 * to put the ISP into operational state
978 **/
979 static int
980 qla4_82xx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
981 {
982 int addr, val;
983 int i ;
984 struct crb_addr_pair *buf;
985 unsigned long off;
986 unsigned offset, n;
987
988 struct crb_addr_pair {
989 long addr;
990 long data;
991 };
992
993 /* Halt all the indiviual PEGs and other blocks of the ISP */
994 qla4_82xx_rom_lock(ha);
995
996 /* disable all I2Q */
997 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
998 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
999 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1000 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1001 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1002 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1003
1004 /* disable all niu interrupts */
1005 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1006 /* disable xge rx/tx */
1007 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1008 /* disable xg1 rx/tx */
1009 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1010 /* disable sideband mac */
1011 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1012 /* disable ap0 mac */
1013 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1014 /* disable ap1 mac */
1015 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1016
1017 /* halt sre */
1018 val = qla4_82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1019 qla4_82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1020
1021 /* halt epg */
1022 qla4_82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1023
1024 /* halt timers */
1025 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1026 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1027 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1028 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1029 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1030 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1031
1032 /* halt pegs */
1033 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1034 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1035 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1036 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1037 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1038 msleep(5);
1039
1040 /* big hammer */
1041 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
1042 /* don't reset CAM block on reset */
1043 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1044 else
1045 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1046
1047 qla4_82xx_rom_unlock(ha);
1048
1049 /* Read the signature value from the flash.
1050 * Offset 0: Contain signature (0xcafecafe)
1051 * Offset 4: Offset and number of addr/value pairs
1052 * that present in CRB initialize sequence
1053 */
1054 if (qla4_82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1055 qla4_82xx_rom_fast_read(ha, 4, &n) != 0) {
1056 ql4_printk(KERN_WARNING, ha,
1057 "[ERROR] Reading crb_init area: n: %08x\n", n);
1058 return -1;
1059 }
1060
1061 /* Offset in flash = lower 16 bits
1062 * Number of enteries = upper 16 bits
1063 */
1064 offset = n & 0xffffU;
1065 n = (n >> 16) & 0xffffU;
1066
1067 /* number of addr/value pair should not exceed 1024 enteries */
1068 if (n >= 1024) {
1069 ql4_printk(KERN_WARNING, ha,
1070 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1071 DRIVER_NAME, __func__, n);
1072 return -1;
1073 }
1074
1075 ql4_printk(KERN_INFO, ha,
1076 "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1077
1078 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1079 if (buf == NULL) {
1080 ql4_printk(KERN_WARNING, ha,
1081 "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1082 return -1;
1083 }
1084
1085 for (i = 0; i < n; i++) {
1086 if (qla4_82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1087 qla4_82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1088 0) {
1089 kfree(buf);
1090 return -1;
1091 }
1092
1093 buf[i].addr = addr;
1094 buf[i].data = val;
1095 }
1096
1097 for (i = 0; i < n; i++) {
1098 /* Translate internal CRB initialization
1099 * address to PCI bus address
1100 */
1101 off = qla4_82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1102 QLA82XX_PCI_CRBSPACE;
1103 /* Not all CRB addr/value pair to be written,
1104 * some of them are skipped
1105 */
1106
1107 /* skip if LS bit is set*/
1108 if (off & 0x1) {
1109 DEBUG2(ql4_printk(KERN_WARNING, ha,
1110 "Skip CRB init replay for offset = 0x%lx\n", off));
1111 continue;
1112 }
1113
1114 /* skipping cold reboot MAGIC */
1115 if (off == QLA82XX_CAM_RAM(0x1fc))
1116 continue;
1117
1118 /* do not reset PCI */
1119 if (off == (ROMUSB_GLB + 0xbc))
1120 continue;
1121
1122 /* skip core clock, so that firmware can increase the clock */
1123 if (off == (ROMUSB_GLB + 0xc8))
1124 continue;
1125
1126 /* skip the function enable register */
1127 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1128 continue;
1129
1130 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1131 continue;
1132
1133 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1134 continue;
1135
1136 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1137 continue;
1138
1139 if (off == ADDR_ERROR) {
1140 ql4_printk(KERN_WARNING, ha,
1141 "%s: [ERROR] Unknown addr: 0x%08lx\n",
1142 DRIVER_NAME, buf[i].addr);
1143 continue;
1144 }
1145
1146 qla4_82xx_wr_32(ha, off, buf[i].data);
1147
1148 /* ISP requires much bigger delay to settle down,
1149 * else crb_window returns 0xffffffff
1150 */
1151 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1152 msleep(1000);
1153
1154 /* ISP requires millisec delay between
1155 * successive CRB register updation
1156 */
1157 msleep(1);
1158 }
1159
1160 kfree(buf);
1161
1162 /* Resetting the data and instruction cache */
1163 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1164 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1165 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1166
1167 /* Clear all protocol processing engines */
1168 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1169 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1170 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1171 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1172 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1173 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1174 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1175 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1176
1177 return 0;
1178 }
1179
1180 /**
1181 * qla4_8xxx_ms_mem_write_128b - Writes data to MS/off-chip memory
1182 * @ha: Pointer to adapter structure
1183 * @addr: Flash address to write to
1184 * @data: Data to be written
1185 * @count: word_count to be written
1186 *
1187 * Return: On success return QLA_SUCCESS
1188 * On error return QLA_ERROR
1189 **/
1190 int qla4_8xxx_ms_mem_write_128b(struct scsi_qla_host *ha, uint64_t addr,
1191 uint32_t *data, uint32_t count)
1192 {
1193 int i, j;
1194 uint32_t agt_ctrl;
1195 unsigned long flags;
1196 int ret_val = QLA_SUCCESS;
1197
1198 /* Only 128-bit aligned access */
1199 if (addr & 0xF) {
1200 ret_val = QLA_ERROR;
1201 goto exit_ms_mem_write;
1202 }
1203
1204 write_lock_irqsave(&ha->hw_lock, flags);
1205
1206 /* Write address */
1207 ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1208 if (ret_val == QLA_ERROR) {
1209 ql4_printk(KERN_ERR, ha, "%s: write to AGT_ADDR_HI failed\n",
1210 __func__);
1211 goto exit_ms_mem_write_unlock;
1212 }
1213
1214 for (i = 0; i < count; i++, addr += 16) {
1215 if (!((QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
1216 QLA8XXX_ADDR_QDR_NET_MAX)) ||
1217 (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
1218 QLA8XXX_ADDR_DDR_NET_MAX)))) {
1219 ret_val = QLA_ERROR;
1220 goto exit_ms_mem_write_unlock;
1221 }
1222
1223 ret_val = ha->isp_ops->wr_reg_indirect(ha,
1224 MD_MIU_TEST_AGT_ADDR_LO,
1225 addr);
1226 /* Write data */
1227 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1228 MD_MIU_TEST_AGT_WRDATA_LO,
1229 *data++);
1230 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1231 MD_MIU_TEST_AGT_WRDATA_HI,
1232 *data++);
1233 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1234 MD_MIU_TEST_AGT_WRDATA_ULO,
1235 *data++);
1236 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1237 MD_MIU_TEST_AGT_WRDATA_UHI,
1238 *data++);
1239 if (ret_val == QLA_ERROR) {
1240 ql4_printk(KERN_ERR, ha, "%s: write to AGT_WRDATA failed\n",
1241 __func__);
1242 goto exit_ms_mem_write_unlock;
1243 }
1244
1245 /* Check write status */
1246 ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
1247 MIU_TA_CTL_WRITE_ENABLE);
1248 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1249 MD_MIU_TEST_AGT_CTRL,
1250 MIU_TA_CTL_WRITE_START);
1251 if (ret_val == QLA_ERROR) {
1252 ql4_printk(KERN_ERR, ha, "%s: write to AGT_CTRL failed\n",
1253 __func__);
1254 goto exit_ms_mem_write_unlock;
1255 }
1256
1257 for (j = 0; j < MAX_CTL_CHECK; j++) {
1258 ret_val = ha->isp_ops->rd_reg_indirect(ha,
1259 MD_MIU_TEST_AGT_CTRL,
1260 &agt_ctrl);
1261 if (ret_val == QLA_ERROR) {
1262 ql4_printk(KERN_ERR, ha, "%s: failed to read MD_MIU_TEST_AGT_CTRL\n",
1263 __func__);
1264 goto exit_ms_mem_write_unlock;
1265 }
1266 if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1267 break;
1268 }
1269
1270 /* Status check failed */
1271 if (j >= MAX_CTL_CHECK) {
1272 printk_ratelimited(KERN_ERR "%s: MS memory write failed!\n",
1273 __func__);
1274 ret_val = QLA_ERROR;
1275 goto exit_ms_mem_write_unlock;
1276 }
1277 }
1278
1279 exit_ms_mem_write_unlock:
1280 write_unlock_irqrestore(&ha->hw_lock, flags);
1281
1282 exit_ms_mem_write:
1283 return ret_val;
1284 }
1285
1286 static int
1287 qla4_82xx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1288 {
1289 int i, rval = 0;
1290 long size = 0;
1291 long flashaddr, memaddr;
1292 u64 data;
1293 u32 high, low;
1294
1295 flashaddr = memaddr = ha->hw.flt_region_bootload;
1296 size = (image_start - flashaddr) / 8;
1297
1298 DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1299 ha->host_no, __func__, flashaddr, image_start));
1300
1301 for (i = 0; i < size; i++) {
1302 if ((qla4_82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1303 (qla4_82xx_rom_fast_read(ha, flashaddr + 4,
1304 (int *)&high))) {
1305 rval = -1;
1306 goto exit_load_from_flash;
1307 }
1308 data = ((u64)high << 32) | low ;
1309 rval = qla4_82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1310 if (rval)
1311 goto exit_load_from_flash;
1312
1313 flashaddr += 8;
1314 memaddr += 8;
1315
1316 if (i % 0x1000 == 0)
1317 msleep(1);
1318
1319 }
1320
1321 udelay(100);
1322
1323 read_lock(&ha->hw_lock);
1324 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1325 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1326 read_unlock(&ha->hw_lock);
1327
1328 exit_load_from_flash:
1329 return rval;
1330 }
1331
1332 static int qla4_82xx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1333 {
1334 u32 rst;
1335
1336 qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1337 if (qla4_82xx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1338 printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1339 __func__);
1340 return QLA_ERROR;
1341 }
1342
1343 udelay(500);
1344
1345 /* at this point, QM is in reset. This could be a problem if there are
1346 * incoming d* transition queue messages. QM/PCIE could wedge.
1347 * To get around this, QM is brought out of reset.
1348 */
1349
1350 rst = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1351 /* unreset qm */
1352 rst &= ~(1 << 28);
1353 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1354
1355 if (qla4_82xx_load_from_flash(ha, image_start)) {
1356 printk("%s: Error trying to load fw from flash!\n", __func__);
1357 return QLA_ERROR;
1358 }
1359
1360 return QLA_SUCCESS;
1361 }
1362
1363 int
1364 qla4_82xx_pci_mem_read_2M(struct scsi_qla_host *ha,
1365 u64 off, void *data, int size)
1366 {
1367 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1368 int shift_amount;
1369 uint32_t temp;
1370 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1371
1372 /*
1373 * If not MN, go check for MS or invalid.
1374 */
1375
1376 if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1377 mem_crb = QLA82XX_CRB_QDR_NET;
1378 else {
1379 mem_crb = QLA82XX_CRB_DDR_NET;
1380 if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1381 return qla4_82xx_pci_mem_read_direct(ha,
1382 off, data, size);
1383 }
1384
1385
1386 off8 = off & 0xfffffff0;
1387 off0[0] = off & 0xf;
1388 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1389 shift_amount = 4;
1390
1391 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1392 off0[1] = 0;
1393 sz[1] = size - sz[0];
1394
1395 for (i = 0; i < loop; i++) {
1396 temp = off8 + (i << shift_amount);
1397 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1398 temp = 0;
1399 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1400 temp = MIU_TA_CTL_ENABLE;
1401 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1402 temp = MIU_TA_CTL_START_ENABLE;
1403 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1404
1405 for (j = 0; j < MAX_CTL_CHECK; j++) {
1406 temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1407 if ((temp & MIU_TA_CTL_BUSY) == 0)
1408 break;
1409 }
1410
1411 if (j >= MAX_CTL_CHECK) {
1412 printk_ratelimited(KERN_ERR
1413 "%s: failed to read through agent\n",
1414 __func__);
1415 break;
1416 }
1417
1418 start = off0[i] >> 2;
1419 end = (off0[i] + sz[i] - 1) >> 2;
1420 for (k = start; k <= end; k++) {
1421 temp = qla4_82xx_rd_32(ha,
1422 mem_crb + MIU_TEST_AGT_RDDATA(k));
1423 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1424 }
1425 }
1426
1427 if (j >= MAX_CTL_CHECK)
1428 return -1;
1429
1430 if ((off0[0] & 7) == 0) {
1431 val = word[0];
1432 } else {
1433 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1434 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1435 }
1436
1437 switch (size) {
1438 case 1:
1439 *(uint8_t *)data = val;
1440 break;
1441 case 2:
1442 *(uint16_t *)data = val;
1443 break;
1444 case 4:
1445 *(uint32_t *)data = val;
1446 break;
1447 case 8:
1448 *(uint64_t *)data = val;
1449 break;
1450 }
1451 return 0;
1452 }
1453
1454 int
1455 qla4_82xx_pci_mem_write_2M(struct scsi_qla_host *ha,
1456 u64 off, void *data, int size)
1457 {
1458 int i, j, ret = 0, loop, sz[2], off0;
1459 int scale, shift_amount, startword;
1460 uint32_t temp;
1461 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1462
1463 /*
1464 * If not MN, go check for MS or invalid.
1465 */
1466 if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1467 mem_crb = QLA82XX_CRB_QDR_NET;
1468 else {
1469 mem_crb = QLA82XX_CRB_DDR_NET;
1470 if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1471 return qla4_82xx_pci_mem_write_direct(ha,
1472 off, data, size);
1473 }
1474
1475 off0 = off & 0x7;
1476 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1477 sz[1] = size - sz[0];
1478
1479 off8 = off & 0xfffffff0;
1480 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1481 shift_amount = 4;
1482 scale = 2;
1483 startword = (off & 0xf)/8;
1484
1485 for (i = 0; i < loop; i++) {
1486 if (qla4_82xx_pci_mem_read_2M(ha, off8 +
1487 (i << shift_amount), &word[i * scale], 8))
1488 return -1;
1489 }
1490
1491 switch (size) {
1492 case 1:
1493 tmpw = *((uint8_t *)data);
1494 break;
1495 case 2:
1496 tmpw = *((uint16_t *)data);
1497 break;
1498 case 4:
1499 tmpw = *((uint32_t *)data);
1500 break;
1501 case 8:
1502 default:
1503 tmpw = *((uint64_t *)data);
1504 break;
1505 }
1506
1507 if (sz[0] == 8)
1508 word[startword] = tmpw;
1509 else {
1510 word[startword] &=
1511 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1512 word[startword] |= tmpw << (off0 * 8);
1513 }
1514
1515 if (sz[1] != 0) {
1516 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1517 word[startword+1] |= tmpw >> (sz[0] * 8);
1518 }
1519
1520 for (i = 0; i < loop; i++) {
1521 temp = off8 + (i << shift_amount);
1522 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1523 temp = 0;
1524 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1525 temp = word[i * scale] & 0xffffffff;
1526 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1527 temp = (word[i * scale] >> 32) & 0xffffffff;
1528 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1529 temp = word[i*scale + 1] & 0xffffffff;
1530 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1531 temp);
1532 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1533 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1534 temp);
1535
1536 temp = MIU_TA_CTL_WRITE_ENABLE;
1537 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1538 temp = MIU_TA_CTL_WRITE_START;
1539 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1540
1541 for (j = 0; j < MAX_CTL_CHECK; j++) {
1542 temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1543 if ((temp & MIU_TA_CTL_BUSY) == 0)
1544 break;
1545 }
1546
1547 if (j >= MAX_CTL_CHECK) {
1548 if (printk_ratelimit())
1549 ql4_printk(KERN_ERR, ha,
1550 "%s: failed to read through agent\n",
1551 __func__);
1552 ret = -1;
1553 break;
1554 }
1555 }
1556
1557 return ret;
1558 }
1559
1560 static int qla4_82xx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
1561 {
1562 u32 val = 0;
1563 int retries = 60;
1564
1565 if (!pegtune_val) {
1566 do {
1567 val = qla4_82xx_rd_32(ha, CRB_CMDPEG_STATE);
1568 if ((val == PHAN_INITIALIZE_COMPLETE) ||
1569 (val == PHAN_INITIALIZE_ACK))
1570 return 0;
1571 set_current_state(TASK_UNINTERRUPTIBLE);
1572 schedule_timeout(500);
1573
1574 } while (--retries);
1575
1576 if (!retries) {
1577 pegtune_val = qla4_82xx_rd_32(ha,
1578 QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1579 printk(KERN_WARNING "%s: init failed, "
1580 "pegtune_val = %x\n", __func__, pegtune_val);
1581 return -1;
1582 }
1583 }
1584 return 0;
1585 }
1586
1587 static int qla4_82xx_rcvpeg_ready(struct scsi_qla_host *ha)
1588 {
1589 uint32_t state = 0;
1590 int loops = 0;
1591
1592 /* Window 1 call */
1593 read_lock(&ha->hw_lock);
1594 state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1595 read_unlock(&ha->hw_lock);
1596
1597 while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
1598 udelay(100);
1599 /* Window 1 call */
1600 read_lock(&ha->hw_lock);
1601 state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1602 read_unlock(&ha->hw_lock);
1603
1604 loops++;
1605 }
1606
1607 if (loops >= 30000) {
1608 DEBUG2(ql4_printk(KERN_INFO, ha,
1609 "Receive Peg initialization not complete: 0x%x.\n", state));
1610 return QLA_ERROR;
1611 }
1612
1613 return QLA_SUCCESS;
1614 }
1615
1616 void
1617 qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
1618 {
1619 uint32_t drv_active;
1620
1621 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1622
1623 /*
1624 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1625 * shift 1 by func_num to set a bit for the function.
1626 * For ISP8022, drv_active has 4 bits per function
1627 */
1628 if (is_qla8032(ha) || is_qla8042(ha))
1629 drv_active |= (1 << ha->func_num);
1630 else
1631 drv_active |= (1 << (ha->func_num * 4));
1632
1633 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1634 __func__, ha->host_no, drv_active);
1635 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1636 }
1637
1638 void
1639 qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1640 {
1641 uint32_t drv_active;
1642
1643 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1644
1645 /*
1646 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1647 * shift 1 by func_num to set a bit for the function.
1648 * For ISP8022, drv_active has 4 bits per function
1649 */
1650 if (is_qla8032(ha) || is_qla8042(ha))
1651 drv_active &= ~(1 << (ha->func_num));
1652 else
1653 drv_active &= ~(1 << (ha->func_num * 4));
1654
1655 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1656 __func__, ha->host_no, drv_active);
1657 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1658 }
1659
1660 inline int qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1661 {
1662 uint32_t drv_state, drv_active;
1663 int rval;
1664
1665 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1666 drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1667
1668 /*
1669 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1670 * shift 1 by func_num to set a bit for the function.
1671 * For ISP8022, drv_active has 4 bits per function
1672 */
1673 if (is_qla8032(ha) || is_qla8042(ha))
1674 rval = drv_state & (1 << ha->func_num);
1675 else
1676 rval = drv_state & (1 << (ha->func_num * 4));
1677
1678 if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1679 rval = 1;
1680
1681 return rval;
1682 }
1683
1684 void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1685 {
1686 uint32_t drv_state;
1687
1688 drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1689
1690 /*
1691 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1692 * shift 1 by func_num to set a bit for the function.
1693 * For ISP8022, drv_active has 4 bits per function
1694 */
1695 if (is_qla8032(ha) || is_qla8042(ha))
1696 drv_state |= (1 << ha->func_num);
1697 else
1698 drv_state |= (1 << (ha->func_num * 4));
1699
1700 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1701 __func__, ha->host_no, drv_state);
1702 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1703 }
1704
1705 void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1706 {
1707 uint32_t drv_state;
1708
1709 drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1710
1711 /*
1712 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1713 * shift 1 by func_num to set a bit for the function.
1714 * For ISP8022, drv_active has 4 bits per function
1715 */
1716 if (is_qla8032(ha) || is_qla8042(ha))
1717 drv_state &= ~(1 << ha->func_num);
1718 else
1719 drv_state &= ~(1 << (ha->func_num * 4));
1720
1721 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1722 __func__, ha->host_no, drv_state);
1723 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1724 }
1725
1726 static inline void
1727 qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1728 {
1729 uint32_t qsnt_state;
1730
1731 qsnt_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1732
1733 /*
1734 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1735 * shift 1 by func_num to set a bit for the function.
1736 * For ISP8022, drv_active has 4 bits per function.
1737 */
1738 if (is_qla8032(ha) || is_qla8042(ha))
1739 qsnt_state |= (1 << ha->func_num);
1740 else
1741 qsnt_state |= (2 << (ha->func_num * 4));
1742
1743 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, qsnt_state);
1744 }
1745
1746
1747 static int
1748 qla4_82xx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1749 {
1750 uint16_t lnk;
1751
1752 /* scrub dma mask expansion register */
1753 qla4_82xx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1754
1755 /* Overwrite stale initialization register values */
1756 qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1757 qla4_82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1758 qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1759 qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1760
1761 if (qla4_82xx_load_fw(ha, image_start) != QLA_SUCCESS) {
1762 printk("%s: Error trying to start fw!\n", __func__);
1763 return QLA_ERROR;
1764 }
1765
1766 /* Handshake with the card before we register the devices. */
1767 if (qla4_82xx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1768 printk("%s: Error during card handshake!\n", __func__);
1769 return QLA_ERROR;
1770 }
1771
1772 /* Negotiated Link width */
1773 pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
1774 ha->link_width = (lnk >> 4) & 0x3f;
1775
1776 /* Synchronize with Receive peg */
1777 return qla4_82xx_rcvpeg_ready(ha);
1778 }
1779
1780 int qla4_82xx_try_start_fw(struct scsi_qla_host *ha)
1781 {
1782 int rval = QLA_ERROR;
1783
1784 /*
1785 * FW Load priority:
1786 * 1) Operational firmware residing in flash.
1787 * 2) Fail
1788 */
1789
1790 ql4_printk(KERN_INFO, ha,
1791 "FW: Retrieving flash offsets from FLT/FDT ...\n");
1792 rval = qla4_8xxx_get_flash_info(ha);
1793 if (rval != QLA_SUCCESS)
1794 return rval;
1795
1796 ql4_printk(KERN_INFO, ha,
1797 "FW: Attempting to load firmware from flash...\n");
1798 rval = qla4_82xx_start_firmware(ha, ha->hw.flt_region_fw);
1799
1800 if (rval != QLA_SUCCESS) {
1801 ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1802 " FAILED...\n");
1803 return rval;
1804 }
1805
1806 return rval;
1807 }
1808
1809 void qla4_82xx_rom_lock_recovery(struct scsi_qla_host *ha)
1810 {
1811 if (qla4_82xx_rom_lock(ha)) {
1812 /* Someone else is holding the lock. */
1813 dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1814 }
1815
1816 /*
1817 * Either we got the lock, or someone
1818 * else died while holding it.
1819 * In either case, unlock.
1820 */
1821 qla4_82xx_rom_unlock(ha);
1822 }
1823
1824 static uint32_t ql4_84xx_poll_wait_for_ready(struct scsi_qla_host *ha,
1825 uint32_t addr1, uint32_t mask)
1826 {
1827 unsigned long timeout;
1828 uint32_t rval = QLA_SUCCESS;
1829 uint32_t temp;
1830
1831 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1832 do {
1833 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
1834 if ((temp & mask) != 0)
1835 break;
1836
1837 if (time_after_eq(jiffies, timeout)) {
1838 ql4_printk(KERN_INFO, ha, "Error in processing rdmdio entry\n");
1839 return QLA_ERROR;
1840 }
1841 } while (1);
1842
1843 return rval;
1844 }
1845
1846 uint32_t ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host *ha, uint32_t addr1,
1847 uint32_t addr3, uint32_t mask, uint32_t addr,
1848 uint32_t *data_ptr)
1849 {
1850 int rval = QLA_SUCCESS;
1851 uint32_t temp;
1852 uint32_t data;
1853
1854 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1855 if (rval)
1856 goto exit_ipmdio_rd_reg;
1857
1858 temp = (0x40000000 | addr);
1859 ha->isp_ops->wr_reg_indirect(ha, addr1, temp);
1860
1861 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1862 if (rval)
1863 goto exit_ipmdio_rd_reg;
1864
1865 ha->isp_ops->rd_reg_indirect(ha, addr3, &data);
1866 *data_ptr = data;
1867
1868 exit_ipmdio_rd_reg:
1869 return rval;
1870 }
1871
1872
1873 static uint32_t ql4_84xx_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *ha,
1874 uint32_t addr1,
1875 uint32_t addr2,
1876 uint32_t addr3,
1877 uint32_t mask)
1878 {
1879 unsigned long timeout;
1880 uint32_t temp;
1881 uint32_t rval = QLA_SUCCESS;
1882
1883 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1884 do {
1885 ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3, mask, addr2, &temp);
1886 if ((temp & 0x1) != 1)
1887 break;
1888 if (time_after_eq(jiffies, timeout)) {
1889 ql4_printk(KERN_INFO, ha, "Error in processing mdiobus idle\n");
1890 return QLA_ERROR;
1891 }
1892 } while (1);
1893
1894 return rval;
1895 }
1896
1897 static int ql4_84xx_ipmdio_wr_reg(struct scsi_qla_host *ha,
1898 uint32_t addr1, uint32_t addr3,
1899 uint32_t mask, uint32_t addr,
1900 uint32_t value)
1901 {
1902 int rval = QLA_SUCCESS;
1903
1904 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1905 if (rval)
1906 goto exit_ipmdio_wr_reg;
1907
1908 ha->isp_ops->wr_reg_indirect(ha, addr3, value);
1909 ha->isp_ops->wr_reg_indirect(ha, addr1, addr);
1910
1911 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1912 if (rval)
1913 goto exit_ipmdio_wr_reg;
1914
1915 exit_ipmdio_wr_reg:
1916 return rval;
1917 }
1918
1919 static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
1920 struct qla8xxx_minidump_entry_hdr *entry_hdr,
1921 uint32_t **d_ptr)
1922 {
1923 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
1924 struct qla8xxx_minidump_entry_crb *crb_hdr;
1925 uint32_t *data_ptr = *d_ptr;
1926
1927 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1928 crb_hdr = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
1929 r_addr = crb_hdr->addr;
1930 r_stride = crb_hdr->crb_strd.addr_stride;
1931 loop_cnt = crb_hdr->op_count;
1932
1933 for (i = 0; i < loop_cnt; i++) {
1934 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
1935 *data_ptr++ = cpu_to_le32(r_addr);
1936 *data_ptr++ = cpu_to_le32(r_value);
1937 r_addr += r_stride;
1938 }
1939 *d_ptr = data_ptr;
1940 }
1941
1942 static int qla4_83xx_check_dma_engine_state(struct scsi_qla_host *ha)
1943 {
1944 int rval = QLA_SUCCESS;
1945 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1946 uint64_t dma_base_addr = 0;
1947 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1948
1949 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1950 ha->fw_dump_tmplt_hdr;
1951 dma_eng_num =
1952 tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1953 dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1954 (dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1955
1956 /* Read the pex-dma's command-status-and-control register. */
1957 rval = ha->isp_ops->rd_reg_indirect(ha,
1958 (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
1959 &cmd_sts_and_cntrl);
1960
1961 if (rval)
1962 return QLA_ERROR;
1963
1964 /* Check if requested pex-dma engine is available. */
1965 if (cmd_sts_and_cntrl & BIT_31)
1966 return QLA_SUCCESS;
1967 else
1968 return QLA_ERROR;
1969 }
1970
1971 static int qla4_83xx_start_pex_dma(struct scsi_qla_host *ha,
1972 struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr)
1973 {
1974 int rval = QLA_SUCCESS, wait = 0;
1975 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1976 uint64_t dma_base_addr = 0;
1977 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1978
1979 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1980 ha->fw_dump_tmplt_hdr;
1981 dma_eng_num =
1982 tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1983 dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1984 (dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1985
1986 rval = ha->isp_ops->wr_reg_indirect(ha,
1987 dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_LOW,
1988 m_hdr->desc_card_addr);
1989 if (rval)
1990 goto error_exit;
1991
1992 rval = ha->isp_ops->wr_reg_indirect(ha,
1993 dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_HIGH, 0);
1994 if (rval)
1995 goto error_exit;
1996
1997 rval = ha->isp_ops->wr_reg_indirect(ha,
1998 dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL,
1999 m_hdr->start_dma_cmd);
2000 if (rval)
2001 goto error_exit;
2002
2003 /* Wait for dma operation to complete. */
2004 for (wait = 0; wait < QLA83XX_PEX_DMA_MAX_WAIT; wait++) {
2005 rval = ha->isp_ops->rd_reg_indirect(ha,
2006 (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
2007 &cmd_sts_and_cntrl);
2008 if (rval)
2009 goto error_exit;
2010
2011 if ((cmd_sts_and_cntrl & BIT_1) == 0)
2012 break;
2013 else
2014 udelay(10);
2015 }
2016
2017 /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2018 if (wait >= QLA83XX_PEX_DMA_MAX_WAIT) {
2019 rval = QLA_ERROR;
2020 goto error_exit;
2021 }
2022
2023 error_exit:
2024 return rval;
2025 }
2026
2027 static int qla4_8xxx_minidump_pex_dma_read(struct scsi_qla_host *ha,
2028 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2029 uint32_t **d_ptr)
2030 {
2031 int rval = QLA_SUCCESS;
2032 struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2033 uint32_t size, read_size;
2034 uint8_t *data_ptr = (uint8_t *)*d_ptr;
2035 void *rdmem_buffer = NULL;
2036 dma_addr_t rdmem_dma;
2037 struct qla4_83xx_pex_dma_descriptor dma_desc;
2038
2039 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2040
2041 rval = qla4_83xx_check_dma_engine_state(ha);
2042 if (rval != QLA_SUCCESS) {
2043 DEBUG2(ql4_printk(KERN_INFO, ha,
2044 "%s: DMA engine not available. Fallback to rdmem-read.\n",
2045 __func__));
2046 return QLA_ERROR;
2047 }
2048
2049 m_hdr = (struct qla4_83xx_minidump_entry_rdmem_pex_dma *)entry_hdr;
2050 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2051 QLA83XX_PEX_DMA_READ_SIZE,
2052 &rdmem_dma, GFP_KERNEL);
2053 if (!rdmem_buffer) {
2054 DEBUG2(ql4_printk(KERN_INFO, ha,
2055 "%s: Unable to allocate rdmem dma buffer\n",
2056 __func__));
2057 return QLA_ERROR;
2058 }
2059
2060 /* Prepare pex-dma descriptor to be written to MS memory. */
2061 /* dma-desc-cmd layout:
2062 * 0-3: dma-desc-cmd 0-3
2063 * 4-7: pcid function number
2064 * 8-15: dma-desc-cmd 8-15
2065 */
2066 dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2067 dma_desc.cmd.dma_desc_cmd |= ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2068 dma_desc.dma_bus_addr = rdmem_dma;
2069
2070 size = 0;
2071 read_size = 0;
2072 /*
2073 * Perform rdmem operation using pex-dma.
2074 * Prepare dma in chunks of QLA83XX_PEX_DMA_READ_SIZE.
2075 */
2076 while (read_size < m_hdr->read_data_size) {
2077 if (m_hdr->read_data_size - read_size >=
2078 QLA83XX_PEX_DMA_READ_SIZE)
2079 size = QLA83XX_PEX_DMA_READ_SIZE;
2080 else {
2081 size = (m_hdr->read_data_size - read_size);
2082
2083 if (rdmem_buffer)
2084 dma_free_coherent(&ha->pdev->dev,
2085 QLA83XX_PEX_DMA_READ_SIZE,
2086 rdmem_buffer, rdmem_dma);
2087
2088 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, size,
2089 &rdmem_dma,
2090 GFP_KERNEL);
2091 if (!rdmem_buffer) {
2092 DEBUG2(ql4_printk(KERN_INFO, ha,
2093 "%s: Unable to allocate rdmem dma buffer\n",
2094 __func__));
2095 return QLA_ERROR;
2096 }
2097 dma_desc.dma_bus_addr = rdmem_dma;
2098 }
2099
2100 dma_desc.src_addr = m_hdr->read_addr + read_size;
2101 dma_desc.cmd.read_data_size = size;
2102
2103 /* Prepare: Write pex-dma descriptor to MS memory. */
2104 rval = qla4_8xxx_ms_mem_write_128b(ha,
2105 (uint64_t)m_hdr->desc_card_addr,
2106 (uint32_t *)&dma_desc,
2107 (sizeof(struct qla4_83xx_pex_dma_descriptor)/16));
2108 if (rval != QLA_SUCCESS) {
2109 ql4_printk(KERN_INFO, ha,
2110 "%s: Error writing rdmem-dma-init to MS !!!\n",
2111 __func__);
2112 goto error_exit;
2113 }
2114
2115 DEBUG2(ql4_printk(KERN_INFO, ha,
2116 "%s: Dma-desc: Instruct for rdmem dma (size 0x%x).\n",
2117 __func__, size));
2118 /* Execute: Start pex-dma operation. */
2119 rval = qla4_83xx_start_pex_dma(ha, m_hdr);
2120 if (rval != QLA_SUCCESS) {
2121 DEBUG2(ql4_printk(KERN_INFO, ha,
2122 "scsi(%ld): start-pex-dma failed rval=0x%x\n",
2123 ha->host_no, rval));
2124 goto error_exit;
2125 }
2126
2127 memcpy(data_ptr, rdmem_buffer, size);
2128 data_ptr += size;
2129 read_size += size;
2130 }
2131
2132 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2133
2134 *d_ptr = (uint32_t *)data_ptr;
2135
2136 error_exit:
2137 if (rdmem_buffer)
2138 dma_free_coherent(&ha->pdev->dev, size, rdmem_buffer,
2139 rdmem_dma);
2140
2141 return rval;
2142 }
2143
2144 static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
2145 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2146 uint32_t **d_ptr)
2147 {
2148 uint32_t addr, r_addr, c_addr, t_r_addr;
2149 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2150 unsigned long p_wait, w_time, p_mask;
2151 uint32_t c_value_w, c_value_r;
2152 struct qla8xxx_minidump_entry_cache *cache_hdr;
2153 int rval = QLA_ERROR;
2154 uint32_t *data_ptr = *d_ptr;
2155
2156 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2157 cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2158
2159 loop_count = cache_hdr->op_count;
2160 r_addr = cache_hdr->read_addr;
2161 c_addr = cache_hdr->control_addr;
2162 c_value_w = cache_hdr->cache_ctrl.write_value;
2163
2164 t_r_addr = cache_hdr->tag_reg_addr;
2165 t_value = cache_hdr->addr_ctrl.init_tag_value;
2166 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2167 p_wait = cache_hdr->cache_ctrl.poll_wait;
2168 p_mask = cache_hdr->cache_ctrl.poll_mask;
2169
2170 for (i = 0; i < loop_count; i++) {
2171 ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2172
2173 if (c_value_w)
2174 ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2175
2176 if (p_mask) {
2177 w_time = jiffies + p_wait;
2178 do {
2179 ha->isp_ops->rd_reg_indirect(ha, c_addr,
2180 &c_value_r);
2181 if ((c_value_r & p_mask) == 0) {
2182 break;
2183 } else if (time_after_eq(jiffies, w_time)) {
2184 /* capturing dump failed */
2185 return rval;
2186 }
2187 } while (1);
2188 }
2189
2190 addr = r_addr;
2191 for (k = 0; k < r_cnt; k++) {
2192 ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2193 *data_ptr++ = cpu_to_le32(r_value);
2194 addr += cache_hdr->read_ctrl.read_addr_stride;
2195 }
2196
2197 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2198 }
2199 *d_ptr = data_ptr;
2200 return QLA_SUCCESS;
2201 }
2202
2203 static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
2204 struct qla8xxx_minidump_entry_hdr *entry_hdr)
2205 {
2206 struct qla8xxx_minidump_entry_crb *crb_entry;
2207 uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
2208 uint32_t crb_addr;
2209 unsigned long wtime;
2210 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2211 int i;
2212
2213 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2214 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
2215 ha->fw_dump_tmplt_hdr;
2216 crb_entry = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
2217
2218 crb_addr = crb_entry->addr;
2219 for (i = 0; i < crb_entry->op_count; i++) {
2220 opcode = crb_entry->crb_ctrl.opcode;
2221 if (opcode & QLA8XXX_DBG_OPCODE_WR) {
2222 ha->isp_ops->wr_reg_indirect(ha, crb_addr,
2223 crb_entry->value_1);
2224 opcode &= ~QLA8XXX_DBG_OPCODE_WR;
2225 }
2226 if (opcode & QLA8XXX_DBG_OPCODE_RW) {
2227 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2228 ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2229 opcode &= ~QLA8XXX_DBG_OPCODE_RW;
2230 }
2231 if (opcode & QLA8XXX_DBG_OPCODE_AND) {
2232 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2233 read_value &= crb_entry->value_2;
2234 opcode &= ~QLA8XXX_DBG_OPCODE_AND;
2235 if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2236 read_value |= crb_entry->value_3;
2237 opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2238 }
2239 ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2240 }
2241 if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2242 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2243 read_value |= crb_entry->value_3;
2244 ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2245 opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2246 }
2247 if (opcode & QLA8XXX_DBG_OPCODE_POLL) {
2248 poll_time = crb_entry->crb_strd.poll_timeout;
2249 wtime = jiffies + poll_time;
2250 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2251
2252 do {
2253 if ((read_value & crb_entry->value_2) ==
2254 crb_entry->value_1) {
2255 break;
2256 } else if (time_after_eq(jiffies, wtime)) {
2257 /* capturing dump failed */
2258 rval = QLA_ERROR;
2259 break;
2260 } else {
2261 ha->isp_ops->rd_reg_indirect(ha,
2262 crb_addr, &read_value);
2263 }
2264 } while (1);
2265 opcode &= ~QLA8XXX_DBG_OPCODE_POLL;
2266 }
2267
2268 if (opcode & QLA8XXX_DBG_OPCODE_RDSTATE) {
2269 if (crb_entry->crb_strd.state_index_a) {
2270 index = crb_entry->crb_strd.state_index_a;
2271 addr = tmplt_hdr->saved_state_array[index];
2272 } else {
2273 addr = crb_addr;
2274 }
2275
2276 ha->isp_ops->rd_reg_indirect(ha, addr, &read_value);
2277 index = crb_entry->crb_ctrl.state_index_v;
2278 tmplt_hdr->saved_state_array[index] = read_value;
2279 opcode &= ~QLA8XXX_DBG_OPCODE_RDSTATE;
2280 }
2281
2282 if (opcode & QLA8XXX_DBG_OPCODE_WRSTATE) {
2283 if (crb_entry->crb_strd.state_index_a) {
2284 index = crb_entry->crb_strd.state_index_a;
2285 addr = tmplt_hdr->saved_state_array[index];
2286 } else {
2287 addr = crb_addr;
2288 }
2289
2290 if (crb_entry->crb_ctrl.state_index_v) {
2291 index = crb_entry->crb_ctrl.state_index_v;
2292 read_value =
2293 tmplt_hdr->saved_state_array[index];
2294 } else {
2295 read_value = crb_entry->value_1;
2296 }
2297
2298 ha->isp_ops->wr_reg_indirect(ha, addr, read_value);
2299 opcode &= ~QLA8XXX_DBG_OPCODE_WRSTATE;
2300 }
2301
2302 if (opcode & QLA8XXX_DBG_OPCODE_MDSTATE) {
2303 index = crb_entry->crb_ctrl.state_index_v;
2304 read_value = tmplt_hdr->saved_state_array[index];
2305 read_value <<= crb_entry->crb_ctrl.shl;
2306 read_value >>= crb_entry->crb_ctrl.shr;
2307 if (crb_entry->value_2)
2308 read_value &= crb_entry->value_2;
2309 read_value |= crb_entry->value_3;
2310 read_value += crb_entry->value_1;
2311 tmplt_hdr->saved_state_array[index] = read_value;
2312 opcode &= ~QLA8XXX_DBG_OPCODE_MDSTATE;
2313 }
2314 crb_addr += crb_entry->crb_strd.addr_stride;
2315 }
2316 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2317 return rval;
2318 }
2319
2320 static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
2321 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2322 uint32_t **d_ptr)
2323 {
2324 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2325 struct qla8xxx_minidump_entry_rdocm *ocm_hdr;
2326 uint32_t *data_ptr = *d_ptr;
2327
2328 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2329 ocm_hdr = (struct qla8xxx_minidump_entry_rdocm *)entry_hdr;
2330 r_addr = ocm_hdr->read_addr;
2331 r_stride = ocm_hdr->read_addr_stride;
2332 loop_cnt = ocm_hdr->op_count;
2333
2334 DEBUG2(ql4_printk(KERN_INFO, ha,
2335 "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2336 __func__, r_addr, r_stride, loop_cnt));
2337
2338 for (i = 0; i < loop_cnt; i++) {
2339 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2340 *data_ptr++ = cpu_to_le32(r_value);
2341 r_addr += r_stride;
2342 }
2343 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
2344 __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))));
2345 *d_ptr = data_ptr;
2346 }
2347
2348 static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
2349 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2350 uint32_t **d_ptr)
2351 {
2352 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
2353 struct qla8xxx_minidump_entry_mux *mux_hdr;
2354 uint32_t *data_ptr = *d_ptr;
2355
2356 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2357 mux_hdr = (struct qla8xxx_minidump_entry_mux *)entry_hdr;
2358 r_addr = mux_hdr->read_addr;
2359 s_addr = mux_hdr->select_addr;
2360 s_stride = mux_hdr->select_value_stride;
2361 s_value = mux_hdr->select_value;
2362 loop_cnt = mux_hdr->op_count;
2363
2364 for (i = 0; i < loop_cnt; i++) {
2365 ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2366 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2367 *data_ptr++ = cpu_to_le32(s_value);
2368 *data_ptr++ = cpu_to_le32(r_value);
2369 s_value += s_stride;
2370 }
2371 *d_ptr = data_ptr;
2372 }
2373
2374 static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
2375 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2376 uint32_t **d_ptr)
2377 {
2378 uint32_t addr, r_addr, c_addr, t_r_addr;
2379 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2380 uint32_t c_value_w;
2381 struct qla8xxx_minidump_entry_cache *cache_hdr;
2382 uint32_t *data_ptr = *d_ptr;
2383
2384 cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2385 loop_count = cache_hdr->op_count;
2386 r_addr = cache_hdr->read_addr;
2387 c_addr = cache_hdr->control_addr;
2388 c_value_w = cache_hdr->cache_ctrl.write_value;
2389
2390 t_r_addr = cache_hdr->tag_reg_addr;
2391 t_value = cache_hdr->addr_ctrl.init_tag_value;
2392 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2393
2394 for (i = 0; i < loop_count; i++) {
2395 ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2396 ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2397 addr = r_addr;
2398 for (k = 0; k < r_cnt; k++) {
2399 ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2400 *data_ptr++ = cpu_to_le32(r_value);
2401 addr += cache_hdr->read_ctrl.read_addr_stride;
2402 }
2403 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2404 }
2405 *d_ptr = data_ptr;
2406 }
2407
2408 static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
2409 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2410 uint32_t **d_ptr)
2411 {
2412 uint32_t s_addr, r_addr;
2413 uint32_t r_stride, r_value, r_cnt, qid = 0;
2414 uint32_t i, k, loop_cnt;
2415 struct qla8xxx_minidump_entry_queue *q_hdr;
2416 uint32_t *data_ptr = *d_ptr;
2417
2418 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2419 q_hdr = (struct qla8xxx_minidump_entry_queue *)entry_hdr;
2420 s_addr = q_hdr->select_addr;
2421 r_cnt = q_hdr->rd_strd.read_addr_cnt;
2422 r_stride = q_hdr->rd_strd.read_addr_stride;
2423 loop_cnt = q_hdr->op_count;
2424
2425 for (i = 0; i < loop_cnt; i++) {
2426 ha->isp_ops->wr_reg_indirect(ha, s_addr, qid);
2427 r_addr = q_hdr->read_addr;
2428 for (k = 0; k < r_cnt; k++) {
2429 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2430 *data_ptr++ = cpu_to_le32(r_value);
2431 r_addr += r_stride;
2432 }
2433 qid += q_hdr->q_strd.queue_id_stride;
2434 }
2435 *d_ptr = data_ptr;
2436 }
2437
2438 #define MD_DIRECT_ROM_WINDOW 0x42110030
2439 #define MD_DIRECT_ROM_READ_BASE 0x42150000
2440
2441 static void qla4_82xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2442 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2443 uint32_t **d_ptr)
2444 {
2445 uint32_t r_addr, r_value;
2446 uint32_t i, loop_cnt;
2447 struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2448 uint32_t *data_ptr = *d_ptr;
2449
2450 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2451 rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2452 r_addr = rom_hdr->read_addr;
2453 loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
2454
2455 DEBUG2(ql4_printk(KERN_INFO, ha,
2456 "[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
2457 __func__, r_addr, loop_cnt));
2458
2459 for (i = 0; i < loop_cnt; i++) {
2460 ha->isp_ops->wr_reg_indirect(ha, MD_DIRECT_ROM_WINDOW,
2461 (r_addr & 0xFFFF0000));
2462 ha->isp_ops->rd_reg_indirect(ha,
2463 MD_DIRECT_ROM_READ_BASE + (r_addr & 0x0000FFFF),
2464 &r_value);
2465 *data_ptr++ = cpu_to_le32(r_value);
2466 r_addr += sizeof(uint32_t);
2467 }
2468 *d_ptr = data_ptr;
2469 }
2470
2471 #define MD_MIU_TEST_AGT_CTRL 0x41000090
2472 #define MD_MIU_TEST_AGT_ADDR_LO 0x41000094
2473 #define MD_MIU_TEST_AGT_ADDR_HI 0x41000098
2474
2475 static int __qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2476 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2477 uint32_t **d_ptr)
2478 {
2479 uint32_t r_addr, r_value, r_data;
2480 uint32_t i, j, loop_cnt;
2481 struct qla8xxx_minidump_entry_rdmem *m_hdr;
2482 unsigned long flags;
2483 uint32_t *data_ptr = *d_ptr;
2484
2485 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2486 m_hdr = (struct qla8xxx_minidump_entry_rdmem *)entry_hdr;
2487 r_addr = m_hdr->read_addr;
2488 loop_cnt = m_hdr->read_data_size/16;
2489
2490 DEBUG2(ql4_printk(KERN_INFO, ha,
2491 "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2492 __func__, r_addr, m_hdr->read_data_size));
2493
2494 if (r_addr & 0xf) {
2495 DEBUG2(ql4_printk(KERN_INFO, ha,
2496 "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2497 __func__, r_addr));
2498 return QLA_ERROR;
2499 }
2500
2501 if (m_hdr->read_data_size % 16) {
2502 DEBUG2(ql4_printk(KERN_INFO, ha,
2503 "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2504 __func__, m_hdr->read_data_size));
2505 return QLA_ERROR;
2506 }
2507
2508 DEBUG2(ql4_printk(KERN_INFO, ha,
2509 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2510 __func__, r_addr, m_hdr->read_data_size, loop_cnt));
2511
2512 write_lock_irqsave(&ha->hw_lock, flags);
2513 for (i = 0; i < loop_cnt; i++) {
2514 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_LO,
2515 r_addr);
2516 r_value = 0;
2517 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI,
2518 r_value);
2519 r_value = MIU_TA_CTL_ENABLE;
2520 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2521 r_value = MIU_TA_CTL_START_ENABLE;
2522 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2523
2524 for (j = 0; j < MAX_CTL_CHECK; j++) {
2525 ha->isp_ops->rd_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
2526 &r_value);
2527 if ((r_value & MIU_TA_CTL_BUSY) == 0)
2528 break;
2529 }
2530
2531 if (j >= MAX_CTL_CHECK) {
2532 printk_ratelimited(KERN_ERR
2533 "%s: failed to read through agent\n",
2534 __func__);
2535 write_unlock_irqrestore(&ha->hw_lock, flags);
2536 return QLA_SUCCESS;
2537 }
2538
2539 for (j = 0; j < 4; j++) {
2540 ha->isp_ops->rd_reg_indirect(ha,
2541 MD_MIU_TEST_AGT_RDDATA[j],
2542 &r_data);
2543 *data_ptr++ = cpu_to_le32(r_data);
2544 }
2545
2546 r_addr += 16;
2547 }
2548 write_unlock_irqrestore(&ha->hw_lock, flags);
2549
2550 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
2551 __func__, (loop_cnt * 16)));
2552
2553 *d_ptr = data_ptr;
2554 return QLA_SUCCESS;
2555 }
2556
2557 static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2558 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2559 uint32_t **d_ptr)
2560 {
2561 uint32_t *data_ptr = *d_ptr;
2562 int rval = QLA_SUCCESS;
2563
2564 rval = qla4_8xxx_minidump_pex_dma_read(ha, entry_hdr, &data_ptr);
2565 if (rval != QLA_SUCCESS)
2566 rval = __qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
2567 &data_ptr);
2568 *d_ptr = data_ptr;
2569 return rval;
2570 }
2571
2572 static void qla4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
2573 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2574 int index)
2575 {
2576 entry_hdr->d_ctrl.driver_flags |= QLA8XXX_DBG_SKIPPED_FLAG;
2577 DEBUG2(ql4_printk(KERN_INFO, ha,
2578 "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2579 ha->host_no, index, entry_hdr->entry_type,
2580 entry_hdr->d_ctrl.entry_capture_mask));
2581 /* If driver encounters a new entry type that it cannot process,
2582 * it should just skip the entry and adjust the total buffer size by
2583 * from subtracting the skipped bytes from it
2584 */
2585 ha->fw_dump_skip_size += entry_hdr->entry_capture_size;
2586 }
2587
2588 /* ISP83xx functions to process new minidump entries... */
2589 static uint32_t qla83xx_minidump_process_pollrd(struct scsi_qla_host *ha,
2590 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2591 uint32_t **d_ptr)
2592 {
2593 uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2594 uint16_t s_stride, i;
2595 uint32_t *data_ptr = *d_ptr;
2596 uint32_t rval = QLA_SUCCESS;
2597 struct qla83xx_minidump_entry_pollrd *pollrd_hdr;
2598
2599 pollrd_hdr = (struct qla83xx_minidump_entry_pollrd *)entry_hdr;
2600 s_addr = le32_to_cpu(pollrd_hdr->select_addr);
2601 r_addr = le32_to_cpu(pollrd_hdr->read_addr);
2602 s_value = le32_to_cpu(pollrd_hdr->select_value);
2603 s_stride = le32_to_cpu(pollrd_hdr->select_value_stride);
2604
2605 poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2606 poll_mask = le32_to_cpu(pollrd_hdr->poll_mask);
2607
2608 for (i = 0; i < le32_to_cpu(pollrd_hdr->op_count); i++) {
2609 ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2610 poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2611 while (1) {
2612 ha->isp_ops->rd_reg_indirect(ha, s_addr, &r_value);
2613
2614 if ((r_value & poll_mask) != 0) {
2615 break;
2616 } else {
2617 msleep(1);
2618 if (--poll_wait == 0) {
2619 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2620 __func__);
2621 rval = QLA_ERROR;
2622 goto exit_process_pollrd;
2623 }
2624 }
2625 }
2626 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2627 *data_ptr++ = cpu_to_le32(s_value);
2628 *data_ptr++ = cpu_to_le32(r_value);
2629 s_value += s_stride;
2630 }
2631
2632 *d_ptr = data_ptr;
2633
2634 exit_process_pollrd:
2635 return rval;
2636 }
2637
2638 static uint32_t qla4_84xx_minidump_process_rddfe(struct scsi_qla_host *ha,
2639 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2640 uint32_t **d_ptr)
2641 {
2642 int loop_cnt;
2643 uint32_t addr1, addr2, value, data, temp, wrval;
2644 uint8_t stride, stride2;
2645 uint16_t count;
2646 uint32_t poll, mask, data_size, modify_mask;
2647 uint32_t wait_count = 0;
2648 uint32_t *data_ptr = *d_ptr;
2649 struct qla8044_minidump_entry_rddfe *rddfe;
2650 uint32_t rval = QLA_SUCCESS;
2651
2652 rddfe = (struct qla8044_minidump_entry_rddfe *)entry_hdr;
2653 addr1 = le32_to_cpu(rddfe->addr_1);
2654 value = le32_to_cpu(rddfe->value);
2655 stride = le32_to_cpu(rddfe->stride);
2656 stride2 = le32_to_cpu(rddfe->stride2);
2657 count = le32_to_cpu(rddfe->count);
2658
2659 poll = le32_to_cpu(rddfe->poll);
2660 mask = le32_to_cpu(rddfe->mask);
2661 modify_mask = le32_to_cpu(rddfe->modify_mask);
2662 data_size = le32_to_cpu(rddfe->data_size);
2663
2664 addr2 = addr1 + stride;
2665
2666 for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
2667 ha->isp_ops->wr_reg_indirect(ha, addr1, (0x40000000 | value));
2668
2669 wait_count = 0;
2670 while (wait_count < poll) {
2671 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2672 if ((temp & mask) != 0)
2673 break;
2674 wait_count++;
2675 }
2676
2677 if (wait_count == poll) {
2678 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2679 rval = QLA_ERROR;
2680 goto exit_process_rddfe;
2681 } else {
2682 ha->isp_ops->rd_reg_indirect(ha, addr2, &temp);
2683 temp = temp & modify_mask;
2684 temp = (temp | ((loop_cnt << 16) | loop_cnt));
2685 wrval = ((temp << 16) | temp);
2686
2687 ha->isp_ops->wr_reg_indirect(ha, addr2, wrval);
2688 ha->isp_ops->wr_reg_indirect(ha, addr1, value);
2689
2690 wait_count = 0;
2691 while (wait_count < poll) {
2692 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2693 if ((temp & mask) != 0)
2694 break;
2695 wait_count++;
2696 }
2697 if (wait_count == poll) {
2698 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2699 __func__);
2700 rval = QLA_ERROR;
2701 goto exit_process_rddfe;
2702 }
2703
2704 ha->isp_ops->wr_reg_indirect(ha, addr1,
2705 ((0x40000000 | value) +
2706 stride2));
2707 wait_count = 0;
2708 while (wait_count < poll) {
2709 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2710 if ((temp & mask) != 0)
2711 break;
2712 wait_count++;
2713 }
2714
2715 if (wait_count == poll) {
2716 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2717 __func__);
2718 rval = QLA_ERROR;
2719 goto exit_process_rddfe;
2720 }
2721
2722 ha->isp_ops->rd_reg_indirect(ha, addr2, &data);
2723
2724 *data_ptr++ = cpu_to_le32(wrval);
2725 *data_ptr++ = cpu_to_le32(data);
2726 }
2727 }
2728
2729 *d_ptr = data_ptr;
2730 exit_process_rddfe:
2731 return rval;
2732 }
2733
2734 static uint32_t qla4_84xx_minidump_process_rdmdio(struct scsi_qla_host *ha,
2735 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2736 uint32_t **d_ptr)
2737 {
2738 int rval = QLA_SUCCESS;
2739 uint32_t addr1, addr2, value1, value2, data, selval;
2740 uint8_t stride1, stride2;
2741 uint32_t addr3, addr4, addr5, addr6, addr7;
2742 uint16_t count, loop_cnt;
2743 uint32_t poll, mask;
2744 uint32_t *data_ptr = *d_ptr;
2745 struct qla8044_minidump_entry_rdmdio *rdmdio;
2746
2747 rdmdio = (struct qla8044_minidump_entry_rdmdio *)entry_hdr;
2748 addr1 = le32_to_cpu(rdmdio->addr_1);
2749 addr2 = le32_to_cpu(rdmdio->addr_2);
2750 value1 = le32_to_cpu(rdmdio->value_1);
2751 stride1 = le32_to_cpu(rdmdio->stride_1);
2752 stride2 = le32_to_cpu(rdmdio->stride_2);
2753 count = le32_to_cpu(rdmdio->count);
2754
2755 poll = le32_to_cpu(rdmdio->poll);
2756 mask = le32_to_cpu(rdmdio->mask);
2757 value2 = le32_to_cpu(rdmdio->value_2);
2758
2759 addr3 = addr1 + stride1;
2760
2761 for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
2762 rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2763 addr3, mask);
2764 if (rval)
2765 goto exit_process_rdmdio;
2766
2767 addr4 = addr2 - stride1;
2768 rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr4,
2769 value2);
2770 if (rval)
2771 goto exit_process_rdmdio;
2772
2773 addr5 = addr2 - (2 * stride1);
2774 rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr5,
2775 value1);
2776 if (rval)
2777 goto exit_process_rdmdio;
2778
2779 addr6 = addr2 - (3 * stride1);
2780 rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask,
2781 addr6, 0x2);
2782 if (rval)
2783 goto exit_process_rdmdio;
2784
2785 rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2786 addr3, mask);
2787 if (rval)
2788 goto exit_process_rdmdio;
2789
2790 addr7 = addr2 - (4 * stride1);
2791 rval = ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3,
2792 mask, addr7, &data);
2793 if (rval)
2794 goto exit_process_rdmdio;
2795
2796 selval = (value2 << 18) | (value1 << 2) | 2;
2797
2798 stride2 = le32_to_cpu(rdmdio->stride_2);
2799 *data_ptr++ = cpu_to_le32(selval);
2800 *data_ptr++ = cpu_to_le32(data);
2801
2802 value1 = value1 + stride2;
2803 *d_ptr = data_ptr;
2804 }
2805
2806 exit_process_rdmdio:
2807 return rval;
2808 }
2809
2810 static uint32_t qla4_84xx_minidump_process_pollwr(struct scsi_qla_host *ha,
2811 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2812 uint32_t **d_ptr)
2813 {
2814 uint32_t addr1, addr2, value1, value2, poll, mask, r_value;
2815 struct qla8044_minidump_entry_pollwr *pollwr_hdr;
2816 uint32_t wait_count = 0;
2817 uint32_t rval = QLA_SUCCESS;
2818
2819 pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
2820 addr1 = le32_to_cpu(pollwr_hdr->addr_1);
2821 addr2 = le32_to_cpu(pollwr_hdr->addr_2);
2822 value1 = le32_to_cpu(pollwr_hdr->value_1);
2823 value2 = le32_to_cpu(pollwr_hdr->value_2);
2824
2825 poll = le32_to_cpu(pollwr_hdr->poll);
2826 mask = le32_to_cpu(pollwr_hdr->mask);
2827
2828 while (wait_count < poll) {
2829 ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2830
2831 if ((r_value & poll) != 0)
2832 break;
2833
2834 wait_count++;
2835 }
2836
2837 if (wait_count == poll) {
2838 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2839 rval = QLA_ERROR;
2840 goto exit_process_pollwr;
2841 }
2842
2843 ha->isp_ops->wr_reg_indirect(ha, addr2, value2);
2844 ha->isp_ops->wr_reg_indirect(ha, addr1, value1);
2845
2846 wait_count = 0;
2847 while (wait_count < poll) {
2848 ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2849
2850 if ((r_value & poll) != 0)
2851 break;
2852 wait_count++;
2853 }
2854
2855 exit_process_pollwr:
2856 return rval;
2857 }
2858
2859 static void qla83xx_minidump_process_rdmux2(struct scsi_qla_host *ha,
2860 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2861 uint32_t **d_ptr)
2862 {
2863 uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2864 uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2865 struct qla83xx_minidump_entry_rdmux2 *rdmux2_hdr;
2866 uint32_t *data_ptr = *d_ptr;
2867
2868 rdmux2_hdr = (struct qla83xx_minidump_entry_rdmux2 *)entry_hdr;
2869 sel_val1 = le32_to_cpu(rdmux2_hdr->select_value_1);
2870 sel_val2 = le32_to_cpu(rdmux2_hdr->select_value_2);
2871 sel_addr1 = le32_to_cpu(rdmux2_hdr->select_addr_1);
2872 sel_addr2 = le32_to_cpu(rdmux2_hdr->select_addr_2);
2873 sel_val_mask = le32_to_cpu(rdmux2_hdr->select_value_mask);
2874 read_addr = le32_to_cpu(rdmux2_hdr->read_addr);
2875
2876 for (i = 0; i < rdmux2_hdr->op_count; i++) {
2877 ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val1);
2878 t_sel_val = sel_val1 & sel_val_mask;
2879 *data_ptr++ = cpu_to_le32(t_sel_val);
2880
2881 ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2882 ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2883
2884 *data_ptr++ = cpu_to_le32(data);
2885
2886 ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val2);
2887 t_sel_val = sel_val2 & sel_val_mask;
2888 *data_ptr++ = cpu_to_le32(t_sel_val);
2889
2890 ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2891 ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2892
2893 *data_ptr++ = cpu_to_le32(data);
2894
2895 sel_val1 += rdmux2_hdr->select_value_stride;
2896 sel_val2 += rdmux2_hdr->select_value_stride;
2897 }
2898
2899 *d_ptr = data_ptr;
2900 }
2901
2902 static uint32_t qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host *ha,
2903 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2904 uint32_t **d_ptr)
2905 {
2906 uint32_t poll_wait, poll_mask, r_value, data;
2907 uint32_t addr_1, addr_2, value_1, value_2;
2908 uint32_t *data_ptr = *d_ptr;
2909 uint32_t rval = QLA_SUCCESS;
2910 struct qla83xx_minidump_entry_pollrdmwr *poll_hdr;
2911
2912 poll_hdr = (struct qla83xx_minidump_entry_pollrdmwr *)entry_hdr;
2913 addr_1 = le32_to_cpu(poll_hdr->addr_1);
2914 addr_2 = le32_to_cpu(poll_hdr->addr_2);
2915 value_1 = le32_to_cpu(poll_hdr->value_1);
2916 value_2 = le32_to_cpu(poll_hdr->value_2);
2917 poll_mask = le32_to_cpu(poll_hdr->poll_mask);
2918
2919 ha->isp_ops->wr_reg_indirect(ha, addr_1, value_1);
2920
2921 poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2922 while (1) {
2923 ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2924
2925 if ((r_value & poll_mask) != 0) {
2926 break;
2927 } else {
2928 msleep(1);
2929 if (--poll_wait == 0) {
2930 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_1\n",
2931 __func__);
2932 rval = QLA_ERROR;
2933 goto exit_process_pollrdmwr;
2934 }
2935 }
2936 }
2937
2938 ha->isp_ops->rd_reg_indirect(ha, addr_2, &data);
2939 data &= le32_to_cpu(poll_hdr->modify_mask);
2940 ha->isp_ops->wr_reg_indirect(ha, addr_2, data);
2941 ha->isp_ops->wr_reg_indirect(ha, addr_1, value_2);
2942
2943 poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2944 while (1) {
2945 ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2946
2947 if ((r_value & poll_mask) != 0) {
2948 break;
2949 } else {
2950 msleep(1);
2951 if (--poll_wait == 0) {
2952 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_2\n",
2953 __func__);
2954 rval = QLA_ERROR;
2955 goto exit_process_pollrdmwr;
2956 }
2957 }
2958 }
2959
2960 *data_ptr++ = cpu_to_le32(addr_2);
2961 *data_ptr++ = cpu_to_le32(data);
2962 *d_ptr = data_ptr;
2963
2964 exit_process_pollrdmwr:
2965 return rval;
2966 }
2967
2968 static uint32_t qla4_83xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2969 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2970 uint32_t **d_ptr)
2971 {
2972 uint32_t fl_addr, u32_count, rval;
2973 struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2974 uint32_t *data_ptr = *d_ptr;
2975
2976 rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2977 fl_addr = le32_to_cpu(rom_hdr->read_addr);
2978 u32_count = le32_to_cpu(rom_hdr->read_data_size)/sizeof(uint32_t);
2979
2980 DEBUG2(ql4_printk(KERN_INFO, ha, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2981 __func__, fl_addr, u32_count));
2982
2983 rval = qla4_83xx_lockless_flash_read_u32(ha, fl_addr,
2984 (u8 *)(data_ptr), u32_count);
2985
2986 if (rval == QLA_ERROR) {
2987 ql4_printk(KERN_ERR, ha, "%s: Flash Read Error,Count=%d\n",
2988 __func__, u32_count);
2989 goto exit_process_rdrom;
2990 }
2991
2992 data_ptr += u32_count;
2993 *d_ptr = data_ptr;
2994
2995 exit_process_rdrom:
2996 return rval;
2997 }
2998
2999 /**
3000 * qla4_8xxx_collect_md_data - Retrieve firmware minidump data.
3001 * @ha: pointer to adapter structure
3002 **/
3003 static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
3004 {
3005 int num_entry_hdr = 0;
3006 struct qla8xxx_minidump_entry_hdr *entry_hdr;
3007 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
3008 uint32_t *data_ptr;
3009 uint32_t data_collected = 0;
3010 int i, rval = QLA_ERROR;
3011 uint64_t now;
3012 uint32_t timestamp;
3013
3014 ha->fw_dump_skip_size = 0;
3015 if (!ha->fw_dump) {
3016 ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
3017 __func__, ha->host_no);
3018 return rval;
3019 }
3020
3021 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
3022 ha->fw_dump_tmplt_hdr;
3023 data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
3024 ha->fw_dump_tmplt_size);
3025 data_collected += ha->fw_dump_tmplt_size;
3026
3027 num_entry_hdr = tmplt_hdr->num_of_entries;
3028 ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
3029 __func__, data_ptr);
3030 ql4_printk(KERN_INFO, ha,
3031 "[%s]: no of entry headers in Template: 0x%x\n",
3032 __func__, num_entry_hdr);
3033 ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
3034 __func__, ha->fw_dump_capture_mask);
3035 ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
3036 __func__, ha->fw_dump_size, ha->fw_dump_size);
3037
3038 /* Update current timestamp before taking dump */
3039 now = get_jiffies_64();
3040 timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3041 tmplt_hdr->driver_timestamp = timestamp;
3042
3043 entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3044 (((uint8_t *)ha->fw_dump_tmplt_hdr) +
3045 tmplt_hdr->first_entry_offset);
3046
3047 if (is_qla8032(ha) || is_qla8042(ha))
3048 tmplt_hdr->saved_state_array[QLA83XX_SS_OCM_WNDREG_INDEX] =
3049 tmplt_hdr->ocm_window_reg[ha->func_num];
3050
3051 /* Walk through the entry headers - validate/perform required action */
3052 for (i = 0; i < num_entry_hdr; i++) {
3053 if (data_collected > ha->fw_dump_size) {
3054 ql4_printk(KERN_INFO, ha,
3055 "Data collected: [0x%x], Total Dump size: [0x%x]\n",
3056 data_collected, ha->fw_dump_size);
3057 return rval;
3058 }
3059
3060 if (!(entry_hdr->d_ctrl.entry_capture_mask &
3061 ha->fw_dump_capture_mask)) {
3062 entry_hdr->d_ctrl.driver_flags |=
3063 QLA8XXX_DBG_SKIPPED_FLAG;
3064 goto skip_nxt_entry;
3065 }
3066
3067 DEBUG2(ql4_printk(KERN_INFO, ha,
3068 "Data collected: [0x%x], Dump size left:[0x%x]\n",
3069 data_collected,
3070 (ha->fw_dump_size - data_collected)));
3071
3072 /* Decode the entry type and take required action to capture
3073 * debug data
3074 */
3075 switch (entry_hdr->entry_type) {
3076 case QLA8XXX_RDEND:
3077 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3078 break;
3079 case QLA8XXX_CNTRL:
3080 rval = qla4_8xxx_minidump_process_control(ha,
3081 entry_hdr);
3082 if (rval != QLA_SUCCESS) {
3083 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3084 goto md_failed;
3085 }
3086 break;
3087 case QLA8XXX_RDCRB:
3088 qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
3089 &data_ptr);
3090 break;
3091 case QLA8XXX_RDMEM:
3092 rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
3093 &data_ptr);
3094 if (rval != QLA_SUCCESS) {
3095 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3096 goto md_failed;
3097 }
3098 break;
3099 case QLA8XXX_BOARD:
3100 case QLA8XXX_RDROM:
3101 if (is_qla8022(ha)) {
3102 qla4_82xx_minidump_process_rdrom(ha, entry_hdr,
3103 &data_ptr);
3104 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3105 rval = qla4_83xx_minidump_process_rdrom(ha,
3106 entry_hdr,
3107 &data_ptr);
3108 if (rval != QLA_SUCCESS)
3109 qla4_8xxx_mark_entry_skipped(ha,
3110 entry_hdr,
3111 i);
3112 }
3113 break;
3114 case QLA8XXX_L2DTG:
3115 case QLA8XXX_L2ITG:
3116 case QLA8XXX_L2DAT:
3117 case QLA8XXX_L2INS:
3118 rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
3119 &data_ptr);
3120 if (rval != QLA_SUCCESS) {
3121 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3122 goto md_failed;
3123 }
3124 break;
3125 case QLA8XXX_L1DTG:
3126 case QLA8XXX_L1ITG:
3127 case QLA8XXX_L1DAT:
3128 case QLA8XXX_L1INS:
3129 qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
3130 &data_ptr);
3131 break;
3132 case QLA8XXX_RDOCM:
3133 qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
3134 &data_ptr);
3135 break;
3136 case QLA8XXX_RDMUX:
3137 qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
3138 &data_ptr);
3139 break;
3140 case QLA8XXX_QUEUE:
3141 qla4_8xxx_minidump_process_queue(ha, entry_hdr,
3142 &data_ptr);
3143 break;
3144 case QLA83XX_POLLRD:
3145 if (is_qla8022(ha)) {
3146 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3147 break;
3148 }
3149 rval = qla83xx_minidump_process_pollrd(ha, entry_hdr,
3150 &data_ptr);
3151 if (rval != QLA_SUCCESS)
3152 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3153 break;
3154 case QLA83XX_RDMUX2:
3155 if (is_qla8022(ha)) {
3156 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3157 break;
3158 }
3159 qla83xx_minidump_process_rdmux2(ha, entry_hdr,
3160 &data_ptr);
3161 break;
3162 case QLA83XX_POLLRDMWR:
3163 if (is_qla8022(ha)) {
3164 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3165 break;
3166 }
3167 rval = qla83xx_minidump_process_pollrdmwr(ha, entry_hdr,
3168 &data_ptr);
3169 if (rval != QLA_SUCCESS)
3170 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3171 break;
3172 case QLA8044_RDDFE:
3173 rval = qla4_84xx_minidump_process_rddfe(ha, entry_hdr,
3174 &data_ptr);
3175 if (rval != QLA_SUCCESS)
3176 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3177 break;
3178 case QLA8044_RDMDIO:
3179 rval = qla4_84xx_minidump_process_rdmdio(ha, entry_hdr,
3180 &data_ptr);
3181 if (rval != QLA_SUCCESS)
3182 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3183 break;
3184 case QLA8044_POLLWR:
3185 rval = qla4_84xx_minidump_process_pollwr(ha, entry_hdr,
3186 &data_ptr);
3187 if (rval != QLA_SUCCESS)
3188 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3189 break;
3190 case QLA8XXX_RDNOP:
3191 default:
3192 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3193 break;
3194 }
3195
3196 data_collected = (uint8_t *)data_ptr - (uint8_t *)ha->fw_dump;
3197 skip_nxt_entry:
3198 /* next entry in the template */
3199 entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3200 (((uint8_t *)entry_hdr) +
3201 entry_hdr->entry_size);
3202 }
3203
3204 if ((data_collected + ha->fw_dump_skip_size) != ha->fw_dump_size) {
3205 ql4_printk(KERN_INFO, ha,
3206 "Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
3207 data_collected, ha->fw_dump_size);
3208 rval = QLA_ERROR;
3209 goto md_failed;
3210 }
3211
3212 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
3213 __func__, i));
3214 md_failed:
3215 return rval;
3216 }
3217
3218 /**
3219 * qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
3220 * @ha: pointer to adapter structure
3221 **/
3222 static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
3223 {
3224 char event_string[40];
3225 char *envp[] = { event_string, NULL };
3226
3227 switch (code) {
3228 case QL4_UEVENT_CODE_FW_DUMP:
3229 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3230 ha->host_no);
3231 break;
3232 default:
3233 /*do nothing*/
3234 break;
3235 }
3236
3237 kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
3238 }
3239
3240 void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
3241 {
3242 if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
3243 !test_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
3244 if (!qla4_8xxx_collect_md_data(ha)) {
3245 qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
3246 set_bit(AF_82XX_FW_DUMPED, &ha->flags);
3247 } else {
3248 ql4_printk(KERN_INFO, ha, "%s: Unable to collect minidump\n",
3249 __func__);
3250 }
3251 }
3252 }
3253
3254 /**
3255 * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
3256 * @ha: pointer to adapter structure
3257 *
3258 * Note: IDC lock must be held upon entry
3259 **/
3260 int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
3261 {
3262 int rval = QLA_ERROR;
3263 int i;
3264 uint32_t old_count, count;
3265 int need_reset = 0;
3266
3267 need_reset = ha->isp_ops->need_reset(ha);
3268
3269 if (need_reset) {
3270 /* We are trying to perform a recovery here. */
3271 if (test_bit(AF_FW_RECOVERY, &ha->flags))
3272 ha->isp_ops->rom_lock_recovery(ha);
3273 } else {
3274 old_count = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
3275 for (i = 0; i < 10; i++) {
3276 msleep(200);
3277 count = qla4_8xxx_rd_direct(ha,
3278 QLA8XXX_PEG_ALIVE_COUNTER);
3279 if (count != old_count) {
3280 rval = QLA_SUCCESS;
3281 goto dev_ready;
3282 }
3283 }
3284 ha->isp_ops->rom_lock_recovery(ha);
3285 }
3286
3287 /* set to DEV_INITIALIZING */
3288 ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
3289 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3290 QLA8XXX_DEV_INITIALIZING);
3291
3292 ha->isp_ops->idc_unlock(ha);
3293
3294 if (is_qla8022(ha))
3295 qla4_8xxx_get_minidump(ha);
3296
3297 rval = ha->isp_ops->restart_firmware(ha);
3298 ha->isp_ops->idc_lock(ha);
3299
3300 if (rval != QLA_SUCCESS) {
3301 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3302 qla4_8xxx_clear_drv_active(ha);
3303 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3304 QLA8XXX_DEV_FAILED);
3305 return rval;
3306 }
3307
3308 dev_ready:
3309 ql4_printk(KERN_INFO, ha, "HW State: READY\n");
3310 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
3311
3312 return rval;
3313 }
3314
3315 /**
3316 * qla4_82xx_need_reset_handler - Code to start reset sequence
3317 * @ha: pointer to adapter structure
3318 *
3319 * Note: IDC lock must be held upon entry
3320 **/
3321 static void
3322 qla4_82xx_need_reset_handler(struct scsi_qla_host *ha)
3323 {
3324 uint32_t dev_state, drv_state, drv_active;
3325 uint32_t active_mask = 0xFFFFFFFF;
3326 unsigned long reset_timeout;
3327
3328 ql4_printk(KERN_INFO, ha,
3329 "Performing ISP error recovery\n");
3330
3331 if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
3332 qla4_82xx_idc_unlock(ha);
3333 ha->isp_ops->disable_intrs(ha);
3334 qla4_82xx_idc_lock(ha);
3335 }
3336
3337 if (!test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3338 DEBUG2(ql4_printk(KERN_INFO, ha,
3339 "%s(%ld): reset acknowledged\n",
3340 __func__, ha->host_no));
3341 qla4_8xxx_set_rst_ready(ha);
3342 } else {
3343 active_mask = (~(1 << (ha->func_num * 4)));
3344 }
3345
3346 /* wait for 10 seconds for reset ack from all functions */
3347 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3348
3349 drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3350 drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3351
3352 ql4_printk(KERN_INFO, ha,
3353 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3354 __func__, ha->host_no, drv_state, drv_active);
3355
3356 while (drv_state != (drv_active & active_mask)) {
3357 if (time_after_eq(jiffies, reset_timeout)) {
3358 ql4_printk(KERN_INFO, ha,
3359 "%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
3360 DRIVER_NAME, drv_state, drv_active);
3361 break;
3362 }
3363
3364 /*
3365 * When reset_owner times out, check which functions
3366 * acked/did not ack
3367 */
3368 if (test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3369 ql4_printk(KERN_INFO, ha,
3370 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3371 __func__, ha->host_no, drv_state,
3372 drv_active);
3373 }
3374 qla4_82xx_idc_unlock(ha);
3375 msleep(1000);
3376 qla4_82xx_idc_lock(ha);
3377
3378 drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3379 drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3380 }
3381
3382 /* Clear RESET OWNER as we are not going to use it any further */
3383 clear_bit(AF_8XXX_RST_OWNER, &ha->flags);
3384
3385 dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3386 ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
3387 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
3388
3389 /* Force to DEV_COLD unless someone else is starting a reset */
3390 if (dev_state != QLA8XXX_DEV_INITIALIZING) {
3391 ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
3392 qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3393 qla4_8xxx_set_rst_ready(ha);
3394 }
3395 }
3396
3397 /**
3398 * qla4_8xxx_need_qsnt_handler - Code to start qsnt
3399 * @ha: pointer to adapter structure
3400 **/
3401 void
3402 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
3403 {
3404 ha->isp_ops->idc_lock(ha);
3405 qla4_8xxx_set_qsnt_ready(ha);
3406 ha->isp_ops->idc_unlock(ha);
3407 }
3408
3409 static void qla4_82xx_set_idc_ver(struct scsi_qla_host *ha)
3410 {
3411 int idc_ver;
3412 uint32_t drv_active;
3413
3414 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3415 if (drv_active == (1 << (ha->func_num * 4))) {
3416 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION,
3417 QLA82XX_IDC_VERSION);
3418 ql4_printk(KERN_INFO, ha,
3419 "%s: IDC version updated to %d\n", __func__,
3420 QLA82XX_IDC_VERSION);
3421 } else {
3422 idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3423 if (QLA82XX_IDC_VERSION != idc_ver) {
3424 ql4_printk(KERN_INFO, ha,
3425 "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3426 __func__, QLA82XX_IDC_VERSION, idc_ver);
3427 }
3428 }
3429 }
3430
3431 static int qla4_83xx_set_idc_ver(struct scsi_qla_host *ha)
3432 {
3433 int idc_ver;
3434 uint32_t drv_active;
3435 int rval = QLA_SUCCESS;
3436
3437 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3438 if (drv_active == (1 << ha->func_num)) {
3439 idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3440 idc_ver &= (~0xFF);
3441 idc_ver |= QLA83XX_IDC_VER_MAJ_VALUE;
3442 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION, idc_ver);
3443 ql4_printk(KERN_INFO, ha,
3444 "%s: IDC version updated to %d\n", __func__,
3445 idc_ver);
3446 } else {
3447 idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3448 idc_ver &= 0xFF;
3449 if (QLA83XX_IDC_VER_MAJ_VALUE != idc_ver) {
3450 ql4_printk(KERN_INFO, ha,
3451 "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3452 __func__, QLA83XX_IDC_VER_MAJ_VALUE,
3453 idc_ver);
3454 rval = QLA_ERROR;
3455 goto exit_set_idc_ver;
3456 }
3457 }
3458
3459 /* Update IDC_MINOR_VERSION */
3460 idc_ver = qla4_83xx_rd_reg(ha, QLA83XX_CRB_IDC_VER_MINOR);
3461 idc_ver &= ~(0x03 << (ha->func_num * 2));
3462 idc_ver |= (QLA83XX_IDC_VER_MIN_VALUE << (ha->func_num * 2));
3463 qla4_83xx_wr_reg(ha, QLA83XX_CRB_IDC_VER_MINOR, idc_ver);
3464
3465 exit_set_idc_ver:
3466 return rval;
3467 }
3468
3469 int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha)
3470 {
3471 uint32_t drv_active;
3472 int rval = QLA_SUCCESS;
3473
3474 if (test_bit(AF_INIT_DONE, &ha->flags))
3475 goto exit_update_idc_reg;
3476
3477 ha->isp_ops->idc_lock(ha);
3478 qla4_8xxx_set_drv_active(ha);
3479
3480 /*
3481 * If we are the first driver to load and
3482 * ql4xdontresethba is not set, clear IDC_CTRL BIT0.
3483 */
3484 if (is_qla8032(ha) || is_qla8042(ha)) {
3485 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3486 if ((drv_active == (1 << ha->func_num)) && !ql4xdontresethba)
3487 qla4_83xx_clear_idc_dontreset(ha);
3488 }
3489
3490 if (is_qla8022(ha)) {
3491 qla4_82xx_set_idc_ver(ha);
3492 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3493 rval = qla4_83xx_set_idc_ver(ha);
3494 if (rval == QLA_ERROR)
3495 qla4_8xxx_clear_drv_active(ha);
3496 }
3497
3498 ha->isp_ops->idc_unlock(ha);
3499
3500 exit_update_idc_reg:
3501 return rval;
3502 }
3503
3504 /**
3505 * qla4_8xxx_device_state_handler - Adapter state machine
3506 * @ha: pointer to host adapter structure.
3507 *
3508 * Note: IDC lock must be UNLOCKED upon entry
3509 **/
3510 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
3511 {
3512 uint32_t dev_state;
3513 int rval = QLA_SUCCESS;
3514 unsigned long dev_init_timeout;
3515
3516 rval = qla4_8xxx_update_idc_reg(ha);
3517 if (rval == QLA_ERROR)
3518 goto exit_state_handler;
3519
3520 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3521 DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3522 dev_state, dev_state < MAX_STATES ?
3523 qdev_state[dev_state] : "Unknown"));
3524
3525 /* wait for 30 seconds for device to go ready */
3526 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3527
3528 ha->isp_ops->idc_lock(ha);
3529 while (1) {
3530
3531 if (time_after_eq(jiffies, dev_init_timeout)) {
3532 ql4_printk(KERN_WARNING, ha,
3533 "%s: Device Init Failed 0x%x = %s\n",
3534 DRIVER_NAME,
3535 dev_state, dev_state < MAX_STATES ?
3536 qdev_state[dev_state] : "Unknown");
3537 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3538 QLA8XXX_DEV_FAILED);
3539 }
3540
3541 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3542 ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3543 dev_state, dev_state < MAX_STATES ?
3544 qdev_state[dev_state] : "Unknown");
3545
3546 /* NOTE: Make sure idc unlocked upon exit of switch statement */
3547 switch (dev_state) {
3548 case QLA8XXX_DEV_READY:
3549 goto exit;
3550 case QLA8XXX_DEV_COLD:
3551 rval = qla4_8xxx_device_bootstrap(ha);
3552 goto exit;
3553 case QLA8XXX_DEV_INITIALIZING:
3554 ha->isp_ops->idc_unlock(ha);
3555 msleep(1000);
3556 ha->isp_ops->idc_lock(ha);
3557 break;
3558 case QLA8XXX_DEV_NEED_RESET:
3559 /*
3560 * For ISP8324 and ISP8042, if NEED_RESET is set by any
3561 * driver, it should be honored, irrespective of
3562 * IDC_CTRL DONTRESET_BIT0
3563 */
3564 if (is_qla8032(ha) || is_qla8042(ha)) {
3565 qla4_83xx_need_reset_handler(ha);
3566 } else if (is_qla8022(ha)) {
3567 if (!ql4xdontresethba) {
3568 qla4_82xx_need_reset_handler(ha);
3569 /* Update timeout value after need
3570 * reset handler */
3571 dev_init_timeout = jiffies +
3572 (ha->nx_dev_init_timeout * HZ);
3573 } else {
3574 ha->isp_ops->idc_unlock(ha);
3575 msleep(1000);
3576 ha->isp_ops->idc_lock(ha);
3577 }
3578 }
3579 break;
3580 case QLA8XXX_DEV_NEED_QUIESCENT:
3581 /* idc locked/unlocked in handler */
3582 qla4_8xxx_need_qsnt_handler(ha);
3583 break;
3584 case QLA8XXX_DEV_QUIESCENT:
3585 ha->isp_ops->idc_unlock(ha);
3586 msleep(1000);
3587 ha->isp_ops->idc_lock(ha);
3588 break;
3589 case QLA8XXX_DEV_FAILED:
3590 ha->isp_ops->idc_unlock(ha);
3591 qla4xxx_dead_adapter_cleanup(ha);
3592 rval = QLA_ERROR;
3593 ha->isp_ops->idc_lock(ha);
3594 goto exit;
3595 default:
3596 ha->isp_ops->idc_unlock(ha);
3597 qla4xxx_dead_adapter_cleanup(ha);
3598 rval = QLA_ERROR;
3599 ha->isp_ops->idc_lock(ha);
3600 goto exit;
3601 }
3602 }
3603 exit:
3604 ha->isp_ops->idc_unlock(ha);
3605 exit_state_handler:
3606 return rval;
3607 }
3608
3609 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
3610 {
3611 int retval;
3612
3613 /* clear the interrupt */
3614 if (is_qla8032(ha) || is_qla8042(ha)) {
3615 writel(0, &ha->qla4_83xx_reg->risc_intr);
3616 readl(&ha->qla4_83xx_reg->risc_intr);
3617 } else if (is_qla8022(ha)) {
3618 writel(0, &ha->qla4_82xx_reg->host_int);
3619 readl(&ha->qla4_82xx_reg->host_int);
3620 }
3621
3622 retval = qla4_8xxx_device_state_handler(ha);
3623
3624 /* Initialize request and response queues. */
3625 if (retval == QLA_SUCCESS)
3626 qla4xxx_init_rings(ha);
3627
3628 if (retval == QLA_SUCCESS && !test_bit(AF_IRQ_ATTACHED, &ha->flags))
3629 retval = qla4xxx_request_irqs(ha);
3630
3631 return retval;
3632 }
3633
3634 /*****************************************************************************/
3635 /* Flash Manipulation Routines */
3636 /*****************************************************************************/
3637
3638 #define OPTROM_BURST_SIZE 0x1000
3639 #define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
3640
3641 #define FARX_DATA_FLAG BIT_31
3642 #define FARX_ACCESS_FLASH_CONF 0x7FFD0000
3643 #define FARX_ACCESS_FLASH_DATA 0x7FF00000
3644
3645 static inline uint32_t
3646 flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
3647 {
3648 return hw->flash_conf_off | faddr;
3649 }
3650
3651 static inline uint32_t
3652 flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
3653 {
3654 return hw->flash_data_off | faddr;
3655 }
3656
3657 static uint32_t *
3658 qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
3659 uint32_t faddr, uint32_t length)
3660 {
3661 uint32_t i;
3662 uint32_t val;
3663 int loops = 0;
3664 while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
3665 udelay(100);
3666 cond_resched();
3667 loops++;
3668 }
3669 if (loops >= 50000) {
3670 ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
3671 return dwptr;
3672 }
3673
3674 /* Dword reads to flash. */
3675 for (i = 0; i < length/4; i++, faddr += 4) {
3676 if (qla4_82xx_do_rom_fast_read(ha, faddr, &val)) {
3677 ql4_printk(KERN_WARNING, ha,
3678 "Do ROM fast read failed\n");
3679 goto done_read;
3680 }
3681 dwptr[i] = __constant_cpu_to_le32(val);
3682 }
3683
3684 done_read:
3685 qla4_82xx_rom_unlock(ha);
3686 return dwptr;
3687 }
3688
3689 /**
3690 * Address and length are byte address
3691 **/
3692 static uint8_t *
3693 qla4_82xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
3694 uint32_t offset, uint32_t length)
3695 {
3696 qla4_82xx_read_flash_data(ha, (uint32_t *)buf, offset, length);
3697 return buf;
3698 }
3699
3700 static int
3701 qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
3702 {
3703 const char *loc, *locations[] = { "DEF", "PCI" };
3704
3705 /*
3706 * FLT-location structure resides after the last PCI region.
3707 */
3708
3709 /* Begin with sane defaults. */
3710 loc = locations[0];
3711 *start = FA_FLASH_LAYOUT_ADDR_82;
3712
3713 DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
3714 return QLA_SUCCESS;
3715 }
3716
3717 static void
3718 qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
3719 {
3720 const char *loc, *locations[] = { "DEF", "FLT" };
3721 uint16_t *wptr;
3722 uint16_t cnt, chksum;
3723 uint32_t start, status;
3724 struct qla_flt_header *flt;
3725 struct qla_flt_region *region;
3726 struct ql82xx_hw_data *hw = &ha->hw;
3727
3728 hw->flt_region_flt = flt_addr;
3729 wptr = (uint16_t *)ha->request_ring;
3730 flt = (struct qla_flt_header *)ha->request_ring;
3731 region = (struct qla_flt_region *)&flt[1];
3732
3733 if (is_qla8022(ha)) {
3734 qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3735 flt_addr << 2, OPTROM_BURST_SIZE);
3736 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3737 status = qla4_83xx_flash_read_u32(ha, flt_addr << 2,
3738 (uint8_t *)ha->request_ring,
3739 0x400);
3740 if (status != QLA_SUCCESS)
3741 goto no_flash_data;
3742 }
3743
3744 if (*wptr == __constant_cpu_to_le16(0xffff))
3745 goto no_flash_data;
3746 if (flt->version != __constant_cpu_to_le16(1)) {
3747 DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
3748 "version=0x%x length=0x%x checksum=0x%x.\n",
3749 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3750 le16_to_cpu(flt->checksum)));
3751 goto no_flash_data;
3752 }
3753
3754 cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
3755 for (chksum = 0; cnt; cnt--)
3756 chksum += le16_to_cpu(*wptr++);
3757 if (chksum) {
3758 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
3759 "version=0x%x length=0x%x checksum=0x%x.\n",
3760 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3761 chksum));
3762 goto no_flash_data;
3763 }
3764
3765 loc = locations[1];
3766 cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
3767 for ( ; cnt; cnt--, region++) {
3768 /* Store addresses as DWORD offsets. */
3769 start = le32_to_cpu(region->start) >> 2;
3770
3771 DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
3772 "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
3773 le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
3774
3775 switch (le32_to_cpu(region->code) & 0xff) {
3776 case FLT_REG_FDT:
3777 hw->flt_region_fdt = start;
3778 break;
3779 case FLT_REG_BOOT_CODE_82:
3780 hw->flt_region_boot = start;
3781 break;
3782 case FLT_REG_FW_82:
3783 case FLT_REG_FW_82_1:
3784 hw->flt_region_fw = start;
3785 break;
3786 case FLT_REG_BOOTLOAD_82:
3787 hw->flt_region_bootload = start;
3788 break;
3789 case FLT_REG_ISCSI_PARAM:
3790 hw->flt_iscsi_param = start;
3791 break;
3792 case FLT_REG_ISCSI_CHAP:
3793 hw->flt_region_chap = start;
3794 hw->flt_chap_size = le32_to_cpu(region->size);
3795 break;
3796 case FLT_REG_ISCSI_DDB:
3797 hw->flt_region_ddb = start;
3798 hw->flt_ddb_size = le32_to_cpu(region->size);
3799 break;
3800 }
3801 }
3802 goto done;
3803
3804 no_flash_data:
3805 /* Use hardcoded defaults. */
3806 loc = locations[0];
3807
3808 hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82;
3809 hw->flt_region_boot = FA_BOOT_CODE_ADDR_82;
3810 hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
3811 hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
3812 hw->flt_region_chap = FA_FLASH_ISCSI_CHAP >> 2;
3813 hw->flt_chap_size = FA_FLASH_CHAP_SIZE;
3814 hw->flt_region_ddb = FA_FLASH_ISCSI_DDB >> 2;
3815 hw->flt_ddb_size = FA_FLASH_DDB_SIZE;
3816
3817 done:
3818 DEBUG2(ql4_printk(KERN_INFO, ha,
3819 "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x chap_size=0x%x ddb=0x%x ddb_size=0x%x\n",
3820 loc, hw->flt_region_flt, hw->flt_region_fdt,
3821 hw->flt_region_boot, hw->flt_region_bootload,
3822 hw->flt_region_fw, hw->flt_region_chap,
3823 hw->flt_chap_size, hw->flt_region_ddb,
3824 hw->flt_ddb_size));
3825 }
3826
3827 static void
3828 qla4_82xx_get_fdt_info(struct scsi_qla_host *ha)
3829 {
3830 #define FLASH_BLK_SIZE_4K 0x1000
3831 #define FLASH_BLK_SIZE_32K 0x8000
3832 #define FLASH_BLK_SIZE_64K 0x10000
3833 const char *loc, *locations[] = { "MID", "FDT" };
3834 uint16_t cnt, chksum;
3835 uint16_t *wptr;
3836 struct qla_fdt_layout *fdt;
3837 uint16_t mid = 0;
3838 uint16_t fid = 0;
3839 struct ql82xx_hw_data *hw = &ha->hw;
3840
3841 hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3842 hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
3843
3844 wptr = (uint16_t *)ha->request_ring;
3845 fdt = (struct qla_fdt_layout *)ha->request_ring;
3846 qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3847 hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
3848
3849 if (*wptr == __constant_cpu_to_le16(0xffff))
3850 goto no_flash_data;
3851
3852 if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
3853 fdt->sig[3] != 'D')
3854 goto no_flash_data;
3855
3856 for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
3857 cnt++)
3858 chksum += le16_to_cpu(*wptr++);
3859
3860 if (chksum) {
3861 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
3862 "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
3863 le16_to_cpu(fdt->version)));
3864 goto no_flash_data;
3865 }
3866
3867 loc = locations[1];
3868 mid = le16_to_cpu(fdt->man_id);
3869 fid = le16_to_cpu(fdt->id);
3870 hw->fdt_wrt_disable = fdt->wrt_disable_bits;
3871 hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
3872 hw->fdt_block_size = le32_to_cpu(fdt->block_size);
3873
3874 if (fdt->unprotect_sec_cmd) {
3875 hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
3876 fdt->unprotect_sec_cmd);
3877 hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
3878 flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
3879 flash_conf_addr(hw, 0x0336);
3880 }
3881 goto done;
3882
3883 no_flash_data:
3884 loc = locations[0];
3885 hw->fdt_block_size = FLASH_BLK_SIZE_64K;
3886 done:
3887 DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
3888 "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
3889 hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
3890 hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
3891 hw->fdt_block_size));
3892 }
3893
3894 static void
3895 qla4_82xx_get_idc_param(struct scsi_qla_host *ha)
3896 {
3897 #define QLA82XX_IDC_PARAM_ADDR 0x003e885c
3898 uint32_t *wptr;
3899
3900 if (!is_qla8022(ha))
3901 return;
3902 wptr = (uint32_t *)ha->request_ring;
3903 qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3904 QLA82XX_IDC_PARAM_ADDR , 8);
3905
3906 if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
3907 ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
3908 ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
3909 } else {
3910 ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
3911 ha->nx_reset_timeout = le32_to_cpu(*wptr);
3912 }
3913
3914 DEBUG2(ql4_printk(KERN_DEBUG, ha,
3915 "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
3916 DEBUG2(ql4_printk(KERN_DEBUG, ha,
3917 "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
3918 return;
3919 }
3920
3921 void qla4_82xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
3922 int in_count)
3923 {
3924 int i;
3925
3926 /* Load all mailbox registers, except mailbox 0. */
3927 for (i = 1; i < in_count; i++)
3928 writel(mbx_cmd[i], &ha->qla4_82xx_reg->mailbox_in[i]);
3929
3930 /* Wakeup firmware */
3931 writel(mbx_cmd[0], &ha->qla4_82xx_reg->mailbox_in[0]);
3932 readl(&ha->qla4_82xx_reg->mailbox_in[0]);
3933 writel(HINT_MBX_INT_PENDING, &ha->qla4_82xx_reg->hint);
3934 readl(&ha->qla4_82xx_reg->hint);
3935 }
3936
3937 void qla4_82xx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
3938 {
3939 int intr_status;
3940
3941 intr_status = readl(&ha->qla4_82xx_reg->host_int);
3942 if (intr_status & ISRX_82XX_RISC_INT) {
3943 ha->mbox_status_count = out_count;
3944 intr_status = readl(&ha->qla4_82xx_reg->host_status);
3945 ha->isp_ops->interrupt_service_routine(ha, intr_status);
3946
3947 if (test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
3948 test_bit(AF_INTx_ENABLED, &ha->flags))
3949 qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
3950 0xfbff);
3951 }
3952 }
3953
3954 int
3955 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
3956 {
3957 int ret;
3958 uint32_t flt_addr;
3959
3960 ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
3961 if (ret != QLA_SUCCESS)
3962 return ret;
3963
3964 qla4_8xxx_get_flt_info(ha, flt_addr);
3965 if (is_qla8022(ha)) {
3966 qla4_82xx_get_fdt_info(ha);
3967 qla4_82xx_get_idc_param(ha);
3968 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3969 qla4_83xx_get_idc_param(ha);
3970 }
3971
3972 return QLA_SUCCESS;
3973 }
3974
3975 /**
3976 * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
3977 * @ha: pointer to host adapter structure.
3978 *
3979 * Remarks:
3980 * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
3981 * not be available after successful return. Driver must cleanup potential
3982 * outstanding I/O's after calling this funcion.
3983 **/
3984 int
3985 qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
3986 {
3987 int status;
3988 uint32_t mbox_cmd[MBOX_REG_COUNT];
3989 uint32_t mbox_sts[MBOX_REG_COUNT];
3990
3991 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
3992 memset(&mbox_sts, 0, sizeof(mbox_sts));
3993
3994 mbox_cmd[0] = MBOX_CMD_STOP_FW;
3995 status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
3996 &mbox_cmd[0], &mbox_sts[0]);
3997
3998 DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
3999 __func__, status));
4000 return status;
4001 }
4002
4003 /**
4004 * qla4_82xx_isp_reset - Resets ISP and aborts all outstanding commands.
4005 * @ha: pointer to host adapter structure.
4006 **/
4007 int
4008 qla4_82xx_isp_reset(struct scsi_qla_host *ha)
4009 {
4010 int rval;
4011 uint32_t dev_state;
4012
4013 qla4_82xx_idc_lock(ha);
4014 dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
4015
4016 if (dev_state == QLA8XXX_DEV_READY) {
4017 ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
4018 qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4019 QLA8XXX_DEV_NEED_RESET);
4020 set_bit(AF_8XXX_RST_OWNER, &ha->flags);
4021 } else
4022 ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
4023
4024 qla4_82xx_idc_unlock(ha);
4025
4026 rval = qla4_8xxx_device_state_handler(ha);
4027
4028 qla4_82xx_idc_lock(ha);
4029 qla4_8xxx_clear_rst_ready(ha);
4030 qla4_82xx_idc_unlock(ha);
4031
4032 if (rval == QLA_SUCCESS) {
4033 ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_82xx_isp_reset\n");
4034 clear_bit(AF_FW_RECOVERY, &ha->flags);
4035 }
4036
4037 return rval;
4038 }
4039
4040 /**
4041 * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
4042 * @ha: pointer to host adapter structure.
4043 *
4044 **/
4045 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
4046 {
4047 uint32_t mbox_cmd[MBOX_REG_COUNT];
4048 uint32_t mbox_sts[MBOX_REG_COUNT];
4049 struct mbx_sys_info *sys_info;
4050 dma_addr_t sys_info_dma;
4051 int status = QLA_ERROR;
4052
4053 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
4054 &sys_info_dma, GFP_KERNEL);
4055 if (sys_info == NULL) {
4056 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
4057 ha->host_no, __func__));
4058 return status;
4059 }
4060
4061 memset(sys_info, 0, sizeof(*sys_info));
4062 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4063 memset(&mbox_sts, 0, sizeof(mbox_sts));
4064
4065 mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
4066 mbox_cmd[1] = LSDW(sys_info_dma);
4067 mbox_cmd[2] = MSDW(sys_info_dma);
4068 mbox_cmd[4] = sizeof(*sys_info);
4069
4070 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
4071 &mbox_sts[0]) != QLA_SUCCESS) {
4072 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
4073 ha->host_no, __func__));
4074 goto exit_validate_mac82;
4075 }
4076
4077 /* Make sure we receive the minimum required data to cache internally */
4078 if (((is_qla8032(ha) || is_qla8042(ha)) ? mbox_sts[3] : mbox_sts[4]) <
4079 offsetof(struct mbx_sys_info, reserved)) {
4080 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
4081 " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
4082 goto exit_validate_mac82;
4083 }
4084
4085 /* Save M.A.C. address & serial_number */
4086 ha->port_num = sys_info->port_num;
4087 memcpy(ha->my_mac, &sys_info->mac_addr[0],
4088 min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
4089 memcpy(ha->serial_number, &sys_info->serial_number,
4090 min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
4091 memcpy(ha->model_name, &sys_info->board_id_str,
4092 min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
4093 ha->phy_port_cnt = sys_info->phys_port_cnt;
4094 ha->phy_port_num = sys_info->port_num;
4095 ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
4096
4097 DEBUG2(printk("scsi%ld: %s: "
4098 "mac %02x:%02x:%02x:%02x:%02x:%02x "
4099 "serial %s\n", ha->host_no, __func__,
4100 ha->my_mac[0], ha->my_mac[1], ha->my_mac[2],
4101 ha->my_mac[3], ha->my_mac[4], ha->my_mac[5],
4102 ha->serial_number));
4103
4104 status = QLA_SUCCESS;
4105
4106 exit_validate_mac82:
4107 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
4108 sys_info_dma);
4109 return status;
4110 }
4111
4112 /* Interrupt handling helpers. */
4113
4114 int qla4_8xxx_intr_enable(struct scsi_qla_host *ha)
4115 {
4116 uint32_t mbox_cmd[MBOX_REG_COUNT];
4117 uint32_t mbox_sts[MBOX_REG_COUNT];
4118
4119 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4120
4121 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4122 memset(&mbox_sts, 0, sizeof(mbox_sts));
4123 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4124 mbox_cmd[1] = INTR_ENABLE;
4125 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4126 &mbox_sts[0]) != QLA_SUCCESS) {
4127 DEBUG2(ql4_printk(KERN_INFO, ha,
4128 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4129 __func__, mbox_sts[0]));
4130 return QLA_ERROR;
4131 }
4132 return QLA_SUCCESS;
4133 }
4134
4135 int qla4_8xxx_intr_disable(struct scsi_qla_host *ha)
4136 {
4137 uint32_t mbox_cmd[MBOX_REG_COUNT];
4138 uint32_t mbox_sts[MBOX_REG_COUNT];
4139
4140 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4141
4142 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4143 memset(&mbox_sts, 0, sizeof(mbox_sts));
4144 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4145 mbox_cmd[1] = INTR_DISABLE;
4146 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4147 &mbox_sts[0]) != QLA_SUCCESS) {
4148 DEBUG2(ql4_printk(KERN_INFO, ha,
4149 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4150 __func__, mbox_sts[0]));
4151 return QLA_ERROR;
4152 }
4153
4154 return QLA_SUCCESS;
4155 }
4156
4157 void
4158 qla4_82xx_enable_intrs(struct scsi_qla_host *ha)
4159 {
4160 qla4_8xxx_intr_enable(ha);
4161
4162 spin_lock_irq(&ha->hardware_lock);
4163 /* BIT 10 - reset */
4164 qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
4165 spin_unlock_irq(&ha->hardware_lock);
4166 set_bit(AF_INTERRUPTS_ON, &ha->flags);
4167 }
4168
4169 void
4170 qla4_82xx_disable_intrs(struct scsi_qla_host *ha)
4171 {
4172 if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
4173 qla4_8xxx_intr_disable(ha);
4174
4175 spin_lock_irq(&ha->hardware_lock);
4176 /* BIT 10 - set */
4177 qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
4178 spin_unlock_irq(&ha->hardware_lock);
4179 }
4180
4181 struct ql4_init_msix_entry {
4182 uint16_t entry;
4183 uint16_t index;
4184 const char *name;
4185 irq_handler_t handler;
4186 };
4187
4188 static struct ql4_init_msix_entry qla4_8xxx_msix_entries[QLA_MSIX_ENTRIES] = {
4189 { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT,
4190 "qla4xxx (default)",
4191 (irq_handler_t)qla4_8xxx_default_intr_handler },
4192 { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q,
4193 "qla4xxx (rsp_q)", (irq_handler_t)qla4_8xxx_msix_rsp_q },
4194 };
4195
4196 void
4197 qla4_8xxx_disable_msix(struct scsi_qla_host *ha)
4198 {
4199 int i;
4200 struct ql4_msix_entry *qentry;
4201
4202 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
4203 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
4204 if (qentry->have_irq) {
4205 free_irq(qentry->msix_vector, ha);
4206 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
4207 __func__, qla4_8xxx_msix_entries[i].name));
4208 }
4209 }
4210 pci_disable_msix(ha->pdev);
4211 clear_bit(AF_MSIX_ENABLED, &ha->flags);
4212 }
4213
4214 int
4215 qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
4216 {
4217 int i, ret;
4218 struct msix_entry entries[QLA_MSIX_ENTRIES];
4219 struct ql4_msix_entry *qentry;
4220
4221 for (i = 0; i < QLA_MSIX_ENTRIES; i++)
4222 entries[i].entry = qla4_8xxx_msix_entries[i].entry;
4223
4224 ret = pci_enable_msix_exact(ha->pdev, entries, ARRAY_SIZE(entries));
4225 if (ret) {
4226 ql4_printk(KERN_WARNING, ha,
4227 "MSI-X: Failed to enable support -- %d/%d\n",
4228 QLA_MSIX_ENTRIES, ret);
4229 goto msix_out;
4230 }
4231 set_bit(AF_MSIX_ENABLED, &ha->flags);
4232
4233 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
4234 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
4235 qentry->msix_vector = entries[i].vector;
4236 qentry->msix_entry = entries[i].entry;
4237 qentry->have_irq = 0;
4238 ret = request_irq(qentry->msix_vector,
4239 qla4_8xxx_msix_entries[i].handler, 0,
4240 qla4_8xxx_msix_entries[i].name, ha);
4241 if (ret) {
4242 ql4_printk(KERN_WARNING, ha,
4243 "MSI-X: Unable to register handler -- %x/%d.\n",
4244 qla4_8xxx_msix_entries[i].index, ret);
4245 qla4_8xxx_disable_msix(ha);
4246 goto msix_out;
4247 }
4248 qentry->have_irq = 1;
4249 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
4250 __func__, qla4_8xxx_msix_entries[i].name));
4251 }
4252 msix_out:
4253 return ret;
4254 }
4255
4256 int qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host *ha)
4257 {
4258 int status = QLA_SUCCESS;
4259
4260 /* Dont retry adapter initialization if IRQ allocation failed */
4261 if (!test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
4262 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization as IRQs are not attached\n",
4263 __func__);
4264 status = QLA_ERROR;
4265 goto exit_init_adapter_failure;
4266 }
4267
4268 /* Since interrupts are registered in start_firmware for
4269 * 8xxx, release them here if initialize_adapter fails
4270 * and retry adapter initialization */
4271 qla4xxx_free_irqs(ha);
4272
4273 exit_init_adapter_failure:
4274 return status;
4275 }
Linux kernel - Deliverables
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