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 <linux/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 *
qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host * ha,unsigned long off)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 static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8,
49 0x410000AC, 0x410000B8, 0x410000BC };
50 #define MAX_CRB_XFORM 60
51 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
52 static int qla4_8xxx_crb_table_initialized;
53
54 #define qla4_8xxx_crb_addr_transform(name) \
55 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
56 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
57 static void
qla4_82xx_crb_addr_transform_setup(void)58 qla4_82xx_crb_addr_transform_setup(void)
59 {
60 qla4_8xxx_crb_addr_transform(XDMA);
61 qla4_8xxx_crb_addr_transform(TIMR);
62 qla4_8xxx_crb_addr_transform(SRE);
63 qla4_8xxx_crb_addr_transform(SQN3);
64 qla4_8xxx_crb_addr_transform(SQN2);
65 qla4_8xxx_crb_addr_transform(SQN1);
66 qla4_8xxx_crb_addr_transform(SQN0);
67 qla4_8xxx_crb_addr_transform(SQS3);
68 qla4_8xxx_crb_addr_transform(SQS2);
69 qla4_8xxx_crb_addr_transform(SQS1);
70 qla4_8xxx_crb_addr_transform(SQS0);
71 qla4_8xxx_crb_addr_transform(RPMX7);
72 qla4_8xxx_crb_addr_transform(RPMX6);
73 qla4_8xxx_crb_addr_transform(RPMX5);
74 qla4_8xxx_crb_addr_transform(RPMX4);
75 qla4_8xxx_crb_addr_transform(RPMX3);
76 qla4_8xxx_crb_addr_transform(RPMX2);
77 qla4_8xxx_crb_addr_transform(RPMX1);
78 qla4_8xxx_crb_addr_transform(RPMX0);
79 qla4_8xxx_crb_addr_transform(ROMUSB);
80 qla4_8xxx_crb_addr_transform(SN);
81 qla4_8xxx_crb_addr_transform(QMN);
82 qla4_8xxx_crb_addr_transform(QMS);
83 qla4_8xxx_crb_addr_transform(PGNI);
84 qla4_8xxx_crb_addr_transform(PGND);
85 qla4_8xxx_crb_addr_transform(PGN3);
86 qla4_8xxx_crb_addr_transform(PGN2);
87 qla4_8xxx_crb_addr_transform(PGN1);
88 qla4_8xxx_crb_addr_transform(PGN0);
89 qla4_8xxx_crb_addr_transform(PGSI);
90 qla4_8xxx_crb_addr_transform(PGSD);
91 qla4_8xxx_crb_addr_transform(PGS3);
92 qla4_8xxx_crb_addr_transform(PGS2);
93 qla4_8xxx_crb_addr_transform(PGS1);
94 qla4_8xxx_crb_addr_transform(PGS0);
95 qla4_8xxx_crb_addr_transform(PS);
96 qla4_8xxx_crb_addr_transform(PH);
97 qla4_8xxx_crb_addr_transform(NIU);
98 qla4_8xxx_crb_addr_transform(I2Q);
99 qla4_8xxx_crb_addr_transform(EG);
100 qla4_8xxx_crb_addr_transform(MN);
101 qla4_8xxx_crb_addr_transform(MS);
102 qla4_8xxx_crb_addr_transform(CAS2);
103 qla4_8xxx_crb_addr_transform(CAS1);
104 qla4_8xxx_crb_addr_transform(CAS0);
105 qla4_8xxx_crb_addr_transform(CAM);
106 qla4_8xxx_crb_addr_transform(C2C1);
107 qla4_8xxx_crb_addr_transform(C2C0);
108 qla4_8xxx_crb_addr_transform(SMB);
109 qla4_8xxx_crb_addr_transform(OCM0);
110 qla4_8xxx_crb_addr_transform(I2C0);
111
112 qla4_8xxx_crb_table_initialized = 1;
113 }
114
115 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
116 {{{0, 0, 0, 0} } }, /* 0: PCI */
117 {{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */
118 {1, 0x0110000, 0x0120000, 0x130000},
119 {1, 0x0120000, 0x0122000, 0x124000},
120 {1, 0x0130000, 0x0132000, 0x126000},
121 {1, 0x0140000, 0x0142000, 0x128000},
122 {1, 0x0150000, 0x0152000, 0x12a000},
123 {1, 0x0160000, 0x0170000, 0x110000},
124 {1, 0x0170000, 0x0172000, 0x12e000},
125 {0, 0x0000000, 0x0000000, 0x000000},
126 {0, 0x0000000, 0x0000000, 0x000000},
127 {0, 0x0000000, 0x0000000, 0x000000},
128 {0, 0x0000000, 0x0000000, 0x000000},
129 {0, 0x0000000, 0x0000000, 0x000000},
130 {0, 0x0000000, 0x0000000, 0x000000},
131 {1, 0x01e0000, 0x01e0800, 0x122000},
132 {0, 0x0000000, 0x0000000, 0x000000} } },
133 {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
134 {{{0, 0, 0, 0} } }, /* 3: */
135 {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
136 {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */
137 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */
138 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */
139 {{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */
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 {0, 0x0000000, 0x0000000, 0x000000},
153 {0, 0x0000000, 0x0000000, 0x000000},
154 {1, 0x08f0000, 0x08f2000, 0x172000} } },
155 {{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/
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 {0, 0x0000000, 0x0000000, 0x000000},
169 {0, 0x0000000, 0x0000000, 0x000000},
170 {1, 0x09f0000, 0x09f2000, 0x176000} } },
171 {{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/
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 {0, 0x0000000, 0x0000000, 0x000000},
185 {0, 0x0000000, 0x0000000, 0x000000},
186 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
187 {{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/
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 {0, 0x0000000, 0x0000000, 0x000000},
201 {0, 0x0000000, 0x0000000, 0x000000},
202 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
203 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
204 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
205 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
206 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
207 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
208 {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
209 {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
210 {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
211 {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
212 {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
213 {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
214 {{{0, 0, 0, 0} } }, /* 23: */
215 {{{0, 0, 0, 0} } }, /* 24: */
216 {{{0, 0, 0, 0} } }, /* 25: */
217 {{{0, 0, 0, 0} } }, /* 26: */
218 {{{0, 0, 0, 0} } }, /* 27: */
219 {{{0, 0, 0, 0} } }, /* 28: */
220 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
221 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
222 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
223 {{{0} } }, /* 32: PCI */
224 {{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */
225 {1, 0x2110000, 0x2120000, 0x130000},
226 {1, 0x2120000, 0x2122000, 0x124000},
227 {1, 0x2130000, 0x2132000, 0x126000},
228 {1, 0x2140000, 0x2142000, 0x128000},
229 {1, 0x2150000, 0x2152000, 0x12a000},
230 {1, 0x2160000, 0x2170000, 0x110000},
231 {1, 0x2170000, 0x2172000, 0x12e000},
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 {0, 0x0000000, 0x0000000, 0x000000},
239 {0, 0x0000000, 0x0000000, 0x000000} } },
240 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
241 {{{0} } }, /* 35: */
242 {{{0} } }, /* 36: */
243 {{{0} } }, /* 37: */
244 {{{0} } }, /* 38: */
245 {{{0} } }, /* 39: */
246 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
247 {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
248 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
249 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
250 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
251 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
252 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
253 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
254 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
255 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
256 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
257 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
258 {{{0} } }, /* 52: */
259 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
260 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
261 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
262 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
263 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
264 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
265 {{{0} } }, /* 59: I2C0 */
266 {{{0} } }, /* 60: I2C1 */
267 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
268 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
269 {{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */
270 };
271
272 /*
273 * top 12 bits of crb internal address (hub, agent)
274 */
275 static unsigned qla4_82xx_crb_hub_agt[64] = {
276 0,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
278 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
280 0,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
291 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
293 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
294 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
296 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
298 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
299 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
300 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
301 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
302 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
303 0,
304 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
305 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
306 0,
307 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
308 0,
309 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
310 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
311 0,
312 0,
313 0,
314 0,
315 0,
316 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
317 0,
318 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
321 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
323 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
324 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
325 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
326 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
327 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
328 0,
329 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
330 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
331 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
332 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
333 0,
334 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
335 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
336 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
337 0,
338 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
339 0,
340 };
341
342 /* Device states */
343 static char *qdev_state[] = {
344 "Unknown",
345 "Cold",
346 "Initializing",
347 "Ready",
348 "Need Reset",
349 "Need Quiescent",
350 "Failed",
351 "Quiescent",
352 };
353
354 /*
355 * In: 'off' is offset from CRB space in 128M pci map
356 * Out: 'off' is 2M pci map addr
357 * side effect: lock crb window
358 */
359 static void
qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host * ha,ulong * off)360 qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
361 {
362 u32 win_read;
363
364 ha->crb_win = CRB_HI(*off);
365 writel(ha->crb_win,
366 (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
367
368 /* Read back value to make sure write has gone through before trying
369 * to use it. */
370 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
371 if (win_read != ha->crb_win) {
372 DEBUG2(ql4_printk(KERN_INFO, ha,
373 "%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
374 " off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
375 }
376 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
377 }
378
379 void
qla4_82xx_wr_32(struct scsi_qla_host * ha,ulong off,u32 data)380 qla4_82xx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
381 {
382 unsigned long flags = 0;
383 int rv;
384
385 rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
386
387 BUG_ON(rv == -1);
388
389 if (rv == 1) {
390 write_lock_irqsave(&ha->hw_lock, flags);
391 qla4_82xx_crb_win_lock(ha);
392 qla4_82xx_pci_set_crbwindow_2M(ha, &off);
393 }
394
395 writel(data, (void __iomem *)off);
396
397 if (rv == 1) {
398 qla4_82xx_crb_win_unlock(ha);
399 write_unlock_irqrestore(&ha->hw_lock, flags);
400 }
401 }
402
qla4_82xx_rd_32(struct scsi_qla_host * ha,ulong off)403 uint32_t qla4_82xx_rd_32(struct scsi_qla_host *ha, ulong off)
404 {
405 unsigned long flags = 0;
406 int rv;
407 u32 data;
408
409 rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
410
411 BUG_ON(rv == -1);
412
413 if (rv == 1) {
414 write_lock_irqsave(&ha->hw_lock, flags);
415 qla4_82xx_crb_win_lock(ha);
416 qla4_82xx_pci_set_crbwindow_2M(ha, &off);
417 }
418 data = readl((void __iomem *)off);
419
420 if (rv == 1) {
421 qla4_82xx_crb_win_unlock(ha);
422 write_unlock_irqrestore(&ha->hw_lock, flags);
423 }
424 return data;
425 }
426
427 /* Minidump related functions */
qla4_82xx_md_rd_32(struct scsi_qla_host * ha,uint32_t off,uint32_t * data)428 int qla4_82xx_md_rd_32(struct scsi_qla_host *ha, uint32_t off, uint32_t *data)
429 {
430 uint32_t win_read, off_value;
431 int rval = QLA_SUCCESS;
432
433 off_value = off & 0xFFFF0000;
434 writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
435
436 /*
437 * Read back value to make sure write has gone through before trying
438 * to use it.
439 */
440 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
441 if (win_read != off_value) {
442 DEBUG2(ql4_printk(KERN_INFO, ha,
443 "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
444 __func__, off_value, win_read, off));
445 rval = QLA_ERROR;
446 } else {
447 off_value = off & 0x0000FFFF;
448 *data = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
449 ha->nx_pcibase));
450 }
451 return rval;
452 }
453
qla4_82xx_md_wr_32(struct scsi_qla_host * ha,uint32_t off,uint32_t data)454 int qla4_82xx_md_wr_32(struct scsi_qla_host *ha, uint32_t off, uint32_t data)
455 {
456 uint32_t win_read, off_value;
457 int rval = QLA_SUCCESS;
458
459 off_value = off & 0xFFFF0000;
460 writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
461
462 /* Read back value to make sure write has gone through before trying
463 * to use it.
464 */
465 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
466 if (win_read != off_value) {
467 DEBUG2(ql4_printk(KERN_INFO, ha,
468 "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
469 __func__, off_value, win_read, off));
470 rval = QLA_ERROR;
471 } else {
472 off_value = off & 0x0000FFFF;
473 writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
474 ha->nx_pcibase));
475 }
476 return rval;
477 }
478
479 #define CRB_WIN_LOCK_TIMEOUT 100000000
480
qla4_82xx_crb_win_lock(struct scsi_qla_host * ha)481 int qla4_82xx_crb_win_lock(struct scsi_qla_host *ha)
482 {
483 int i;
484 int done = 0, timeout = 0;
485
486 while (!done) {
487 /* acquire semaphore3 from PCI HW block */
488 done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
489 if (done == 1)
490 break;
491 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
492 return -1;
493
494 timeout++;
495
496 /* Yield CPU */
497 if (!in_interrupt())
498 schedule();
499 else {
500 for (i = 0; i < 20; i++)
501 cpu_relax(); /*This a nop instr on i386*/
502 }
503 }
504 qla4_82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
505 return 0;
506 }
507
qla4_82xx_crb_win_unlock(struct scsi_qla_host * ha)508 void qla4_82xx_crb_win_unlock(struct scsi_qla_host *ha)
509 {
510 qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
511 }
512
513 #define IDC_LOCK_TIMEOUT 100000000
514
515 /**
516 * qla4_82xx_idc_lock - hw_lock
517 * @ha: pointer to adapter structure
518 *
519 * General purpose lock used to synchronize access to
520 * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
521 **/
qla4_82xx_idc_lock(struct scsi_qla_host * ha)522 int qla4_82xx_idc_lock(struct scsi_qla_host *ha)
523 {
524 int i;
525 int done = 0, timeout = 0;
526
527 while (!done) {
528 /* acquire semaphore5 from PCI HW block */
529 done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
530 if (done == 1)
531 break;
532 if (timeout >= IDC_LOCK_TIMEOUT)
533 return -1;
534
535 timeout++;
536
537 /* Yield CPU */
538 if (!in_interrupt())
539 schedule();
540 else {
541 for (i = 0; i < 20; i++)
542 cpu_relax(); /*This a nop instr on i386*/
543 }
544 }
545 return 0;
546 }
547
qla4_82xx_idc_unlock(struct scsi_qla_host * ha)548 void qla4_82xx_idc_unlock(struct scsi_qla_host *ha)
549 {
550 qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
551 }
552
553 int
qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host * ha,ulong * off)554 qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
555 {
556 struct crb_128M_2M_sub_block_map *m;
557
558 if (*off >= QLA82XX_CRB_MAX)
559 return -1;
560
561 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
562 *off = (*off - QLA82XX_PCI_CAMQM) +
563 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
564 return 0;
565 }
566
567 if (*off < QLA82XX_PCI_CRBSPACE)
568 return -1;
569
570 *off -= QLA82XX_PCI_CRBSPACE;
571 /*
572 * Try direct map
573 */
574
575 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
576
577 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
578 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
579 return 0;
580 }
581
582 /*
583 * Not in direct map, use crb window
584 */
585 return 1;
586 }
587
588 /*
589 * check memory access boundary.
590 * used by test agent. support ddr access only for now
591 */
592 static unsigned long
qla4_82xx_pci_mem_bound_check(struct scsi_qla_host * ha,unsigned long long addr,int size)593 qla4_82xx_pci_mem_bound_check(struct scsi_qla_host *ha,
594 unsigned long long addr, int size)
595 {
596 if (!QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
597 QLA8XXX_ADDR_DDR_NET_MAX) ||
598 !QLA8XXX_ADDR_IN_RANGE(addr + size - 1,
599 QLA8XXX_ADDR_DDR_NET, QLA8XXX_ADDR_DDR_NET_MAX) ||
600 ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
601 return 0;
602 }
603 return 1;
604 }
605
606 static int qla4_82xx_pci_set_window_warning_count;
607
608 static unsigned long
qla4_82xx_pci_set_window(struct scsi_qla_host * ha,unsigned long long addr)609 qla4_82xx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
610 {
611 int window;
612 u32 win_read;
613
614 if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
615 QLA8XXX_ADDR_DDR_NET_MAX)) {
616 /* DDR network side */
617 window = MN_WIN(addr);
618 ha->ddr_mn_window = window;
619 qla4_82xx_wr_32(ha, ha->mn_win_crb |
620 QLA82XX_PCI_CRBSPACE, window);
621 win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
622 QLA82XX_PCI_CRBSPACE);
623 if ((win_read << 17) != window) {
624 ql4_printk(KERN_WARNING, ha,
625 "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
626 __func__, window, win_read);
627 }
628 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
629 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
630 QLA8XXX_ADDR_OCM0_MAX)) {
631 unsigned int temp1;
632 /* if bits 19:18&17:11 are on */
633 if ((addr & 0x00ff800) == 0xff800) {
634 printk("%s: QM access not handled.\n", __func__);
635 addr = -1UL;
636 }
637
638 window = OCM_WIN(addr);
639 ha->ddr_mn_window = window;
640 qla4_82xx_wr_32(ha, ha->mn_win_crb |
641 QLA82XX_PCI_CRBSPACE, window);
642 win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
643 QLA82XX_PCI_CRBSPACE);
644 temp1 = ((window & 0x1FF) << 7) |
645 ((window & 0x0FFFE0000) >> 17);
646 if (win_read != temp1) {
647 printk("%s: Written OCMwin (0x%x) != Read"
648 " OCMwin (0x%x)\n", __func__, temp1, win_read);
649 }
650 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
651
652 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
653 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
654 /* QDR network side */
655 window = MS_WIN(addr);
656 ha->qdr_sn_window = window;
657 qla4_82xx_wr_32(ha, ha->ms_win_crb |
658 QLA82XX_PCI_CRBSPACE, window);
659 win_read = qla4_82xx_rd_32(ha,
660 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
661 if (win_read != window) {
662 printk("%s: Written MSwin (0x%x) != Read "
663 "MSwin (0x%x)\n", __func__, window, win_read);
664 }
665 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
666
667 } else {
668 /*
669 * peg gdb frequently accesses memory that doesn't exist,
670 * this limits the chit chat so debugging isn't slowed down.
671 */
672 if ((qla4_82xx_pci_set_window_warning_count++ < 8) ||
673 (qla4_82xx_pci_set_window_warning_count%64 == 0)) {
674 printk("%s: Warning:%s Unknown address range!\n",
675 __func__, DRIVER_NAME);
676 }
677 addr = -1UL;
678 }
679 return addr;
680 }
681
682 /* check if address is in the same windows as the previous access */
qla4_82xx_pci_is_same_window(struct scsi_qla_host * ha,unsigned long long addr)683 static int qla4_82xx_pci_is_same_window(struct scsi_qla_host *ha,
684 unsigned long long addr)
685 {
686 int window;
687 unsigned long long qdr_max;
688
689 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
690
691 if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
692 QLA8XXX_ADDR_DDR_NET_MAX)) {
693 /* DDR network side */
694 BUG(); /* MN access can not come here */
695 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
696 QLA8XXX_ADDR_OCM0_MAX)) {
697 return 1;
698 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM1,
699 QLA8XXX_ADDR_OCM1_MAX)) {
700 return 1;
701 } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
702 qdr_max)) {
703 /* QDR network side */
704 window = ((addr - QLA8XXX_ADDR_QDR_NET) >> 22) & 0x3f;
705 if (ha->qdr_sn_window == window)
706 return 1;
707 }
708
709 return 0;
710 }
711
qla4_82xx_pci_mem_read_direct(struct scsi_qla_host * ha,u64 off,void * data,int size)712 static int qla4_82xx_pci_mem_read_direct(struct scsi_qla_host *ha,
713 u64 off, void *data, int size)
714 {
715 unsigned long flags;
716 void __iomem *addr;
717 int ret = 0;
718 u64 start;
719 void __iomem *mem_ptr = NULL;
720 unsigned long mem_base;
721 unsigned long mem_page;
722
723 write_lock_irqsave(&ha->hw_lock, flags);
724
725 /*
726 * If attempting to access unknown address or straddle hw windows,
727 * do not access.
728 */
729 start = qla4_82xx_pci_set_window(ha, off);
730 if ((start == -1UL) ||
731 (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
732 write_unlock_irqrestore(&ha->hw_lock, flags);
733 printk(KERN_ERR"%s out of bound pci memory access. "
734 "offset is 0x%llx\n", DRIVER_NAME, off);
735 return -1;
736 }
737
738 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
739 if (!addr) {
740 write_unlock_irqrestore(&ha->hw_lock, flags);
741 mem_base = pci_resource_start(ha->pdev, 0);
742 mem_page = start & PAGE_MASK;
743 /* Map two pages whenever user tries to access addresses in two
744 consecutive pages.
745 */
746 if (mem_page != ((start + size - 1) & PAGE_MASK))
747 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
748 else
749 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
750
751 if (mem_ptr == NULL) {
752 *(u8 *)data = 0;
753 return -1;
754 }
755 addr = mem_ptr;
756 addr += start & (PAGE_SIZE - 1);
757 write_lock_irqsave(&ha->hw_lock, flags);
758 }
759
760 switch (size) {
761 case 1:
762 *(u8 *)data = readb(addr);
763 break;
764 case 2:
765 *(u16 *)data = readw(addr);
766 break;
767 case 4:
768 *(u32 *)data = readl(addr);
769 break;
770 case 8:
771 *(u64 *)data = readq(addr);
772 break;
773 default:
774 ret = -1;
775 break;
776 }
777 write_unlock_irqrestore(&ha->hw_lock, flags);
778
779 if (mem_ptr)
780 iounmap(mem_ptr);
781 return ret;
782 }
783
784 static int
qla4_82xx_pci_mem_write_direct(struct scsi_qla_host * ha,u64 off,void * data,int size)785 qla4_82xx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
786 void *data, int size)
787 {
788 unsigned long flags;
789 void __iomem *addr;
790 int ret = 0;
791 u64 start;
792 void __iomem *mem_ptr = NULL;
793 unsigned long mem_base;
794 unsigned long mem_page;
795
796 write_lock_irqsave(&ha->hw_lock, flags);
797
798 /*
799 * If attempting to access unknown address or straddle hw windows,
800 * do not access.
801 */
802 start = qla4_82xx_pci_set_window(ha, off);
803 if ((start == -1UL) ||
804 (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
805 write_unlock_irqrestore(&ha->hw_lock, flags);
806 printk(KERN_ERR"%s out of bound pci memory access. "
807 "offset is 0x%llx\n", DRIVER_NAME, off);
808 return -1;
809 }
810
811 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
812 if (!addr) {
813 write_unlock_irqrestore(&ha->hw_lock, flags);
814 mem_base = pci_resource_start(ha->pdev, 0);
815 mem_page = start & PAGE_MASK;
816 /* Map two pages whenever user tries to access addresses in two
817 consecutive pages.
818 */
819 if (mem_page != ((start + size - 1) & PAGE_MASK))
820 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
821 else
822 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
823 if (mem_ptr == NULL)
824 return -1;
825
826 addr = mem_ptr;
827 addr += start & (PAGE_SIZE - 1);
828 write_lock_irqsave(&ha->hw_lock, flags);
829 }
830
831 switch (size) {
832 case 1:
833 writeb(*(u8 *)data, addr);
834 break;
835 case 2:
836 writew(*(u16 *)data, addr);
837 break;
838 case 4:
839 writel(*(u32 *)data, addr);
840 break;
841 case 8:
842 writeq(*(u64 *)data, addr);
843 break;
844 default:
845 ret = -1;
846 break;
847 }
848 write_unlock_irqrestore(&ha->hw_lock, flags);
849 if (mem_ptr)
850 iounmap(mem_ptr);
851 return ret;
852 }
853
854 #define MTU_FUDGE_FACTOR 100
855
856 static unsigned long
qla4_82xx_decode_crb_addr(unsigned long addr)857 qla4_82xx_decode_crb_addr(unsigned long addr)
858 {
859 int i;
860 unsigned long base_addr, offset, pci_base;
861
862 if (!qla4_8xxx_crb_table_initialized)
863 qla4_82xx_crb_addr_transform_setup();
864
865 pci_base = ADDR_ERROR;
866 base_addr = addr & 0xfff00000;
867 offset = addr & 0x000fffff;
868
869 for (i = 0; i < MAX_CRB_XFORM; i++) {
870 if (crb_addr_xform[i] == base_addr) {
871 pci_base = i << 20;
872 break;
873 }
874 }
875 if (pci_base == ADDR_ERROR)
876 return pci_base;
877 else
878 return pci_base + offset;
879 }
880
881 static long rom_max_timeout = 100;
882 static long qla4_82xx_rom_lock_timeout = 100;
883
884 static int
qla4_82xx_rom_lock(struct scsi_qla_host * ha)885 qla4_82xx_rom_lock(struct scsi_qla_host *ha)
886 {
887 int i;
888 int done = 0, timeout = 0;
889
890 while (!done) {
891 /* acquire semaphore2 from PCI HW block */
892
893 done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
894 if (done == 1)
895 break;
896 if (timeout >= qla4_82xx_rom_lock_timeout)
897 return -1;
898
899 timeout++;
900
901 /* Yield CPU */
902 if (!in_interrupt())
903 schedule();
904 else {
905 for (i = 0; i < 20; i++)
906 cpu_relax(); /*This a nop instr on i386*/
907 }
908 }
909 qla4_82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
910 return 0;
911 }
912
913 static void
qla4_82xx_rom_unlock(struct scsi_qla_host * ha)914 qla4_82xx_rom_unlock(struct scsi_qla_host *ha)
915 {
916 qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
917 }
918
919 static int
qla4_82xx_wait_rom_done(struct scsi_qla_host * ha)920 qla4_82xx_wait_rom_done(struct scsi_qla_host *ha)
921 {
922 long timeout = 0;
923 long done = 0 ;
924
925 while (done == 0) {
926 done = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
927 done &= 2;
928 timeout++;
929 if (timeout >= rom_max_timeout) {
930 printk("%s: Timeout reached waiting for rom done",
931 DRIVER_NAME);
932 return -1;
933 }
934 }
935 return 0;
936 }
937
938 static int
qla4_82xx_do_rom_fast_read(struct scsi_qla_host * ha,int addr,int * valp)939 qla4_82xx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
940 {
941 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
942 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
943 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
944 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
945 if (qla4_82xx_wait_rom_done(ha)) {
946 printk("%s: Error waiting for rom done\n", DRIVER_NAME);
947 return -1;
948 }
949 /* reset abyte_cnt and dummy_byte_cnt */
950 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
951 udelay(10);
952 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
953
954 *valp = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
955 return 0;
956 }
957
958 static int
qla4_82xx_rom_fast_read(struct scsi_qla_host * ha,int addr,int * valp)959 qla4_82xx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
960 {
961 int ret, loops = 0;
962
963 while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
964 udelay(100);
965 loops++;
966 }
967 if (loops >= 50000) {
968 ql4_printk(KERN_WARNING, ha, "%s: qla4_82xx_rom_lock failed\n",
969 DRIVER_NAME);
970 return -1;
971 }
972 ret = qla4_82xx_do_rom_fast_read(ha, addr, valp);
973 qla4_82xx_rom_unlock(ha);
974 return ret;
975 }
976
977 /**
978 * This routine does CRB initialize sequence
979 * to put the ISP into operational state
980 **/
981 static int
qla4_82xx_pinit_from_rom(struct scsi_qla_host * ha,int verbose)982 qla4_82xx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
983 {
984 int addr, val;
985 int i ;
986 struct crb_addr_pair *buf;
987 unsigned long off;
988 unsigned offset, n;
989
990 struct crb_addr_pair {
991 long addr;
992 long data;
993 };
994
995 /* Halt all the indiviual PEGs and other blocks of the ISP */
996 qla4_82xx_rom_lock(ha);
997
998 /* disable all I2Q */
999 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1000 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1001 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1002 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1003 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1004 qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1005
1006 /* disable all niu interrupts */
1007 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1008 /* disable xge rx/tx */
1009 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1010 /* disable xg1 rx/tx */
1011 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1012 /* disable sideband mac */
1013 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1014 /* disable ap0 mac */
1015 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1016 /* disable ap1 mac */
1017 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1018
1019 /* halt sre */
1020 val = qla4_82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1021 qla4_82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1022
1023 /* halt epg */
1024 qla4_82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1025
1026 /* halt timers */
1027 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1028 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1029 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1030 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1031 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1032 qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1033
1034 /* halt pegs */
1035 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1036 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1037 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1038 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1039 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1040 msleep(5);
1041
1042 /* big hammer */
1043 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
1044 /* don't reset CAM block on reset */
1045 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1046 else
1047 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1048
1049 qla4_82xx_rom_unlock(ha);
1050
1051 /* Read the signature value from the flash.
1052 * Offset 0: Contain signature (0xcafecafe)
1053 * Offset 4: Offset and number of addr/value pairs
1054 * that present in CRB initialize sequence
1055 */
1056 if (qla4_82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1057 qla4_82xx_rom_fast_read(ha, 4, &n) != 0) {
1058 ql4_printk(KERN_WARNING, ha,
1059 "[ERROR] Reading crb_init area: n: %08x\n", n);
1060 return -1;
1061 }
1062
1063 /* Offset in flash = lower 16 bits
1064 * Number of enteries = upper 16 bits
1065 */
1066 offset = n & 0xffffU;
1067 n = (n >> 16) & 0xffffU;
1068
1069 /* number of addr/value pair should not exceed 1024 enteries */
1070 if (n >= 1024) {
1071 ql4_printk(KERN_WARNING, ha,
1072 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1073 DRIVER_NAME, __func__, n);
1074 return -1;
1075 }
1076
1077 ql4_printk(KERN_INFO, ha,
1078 "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1079
1080 buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
1081 if (buf == NULL) {
1082 ql4_printk(KERN_WARNING, ha,
1083 "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1084 return -1;
1085 }
1086
1087 for (i = 0; i < n; i++) {
1088 if (qla4_82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1089 qla4_82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1090 0) {
1091 kfree(buf);
1092 return -1;
1093 }
1094
1095 buf[i].addr = addr;
1096 buf[i].data = val;
1097 }
1098
1099 for (i = 0; i < n; i++) {
1100 /* Translate internal CRB initialization
1101 * address to PCI bus address
1102 */
1103 off = qla4_82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1104 QLA82XX_PCI_CRBSPACE;
1105 /* Not all CRB addr/value pair to be written,
1106 * some of them are skipped
1107 */
1108
1109 /* skip if LS bit is set*/
1110 if (off & 0x1) {
1111 DEBUG2(ql4_printk(KERN_WARNING, ha,
1112 "Skip CRB init replay for offset = 0x%lx\n", off));
1113 continue;
1114 }
1115
1116 /* skipping cold reboot MAGIC */
1117 if (off == QLA82XX_CAM_RAM(0x1fc))
1118 continue;
1119
1120 /* do not reset PCI */
1121 if (off == (ROMUSB_GLB + 0xbc))
1122 continue;
1123
1124 /* skip core clock, so that firmware can increase the clock */
1125 if (off == (ROMUSB_GLB + 0xc8))
1126 continue;
1127
1128 /* skip the function enable register */
1129 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1130 continue;
1131
1132 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1133 continue;
1134
1135 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1136 continue;
1137
1138 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1139 continue;
1140
1141 if (off == ADDR_ERROR) {
1142 ql4_printk(KERN_WARNING, ha,
1143 "%s: [ERROR] Unknown addr: 0x%08lx\n",
1144 DRIVER_NAME, buf[i].addr);
1145 continue;
1146 }
1147
1148 qla4_82xx_wr_32(ha, off, buf[i].data);
1149
1150 /* ISP requires much bigger delay to settle down,
1151 * else crb_window returns 0xffffffff
1152 */
1153 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1154 msleep(1000);
1155
1156 /* ISP requires millisec delay between
1157 * successive CRB register updation
1158 */
1159 msleep(1);
1160 }
1161
1162 kfree(buf);
1163
1164 /* Resetting the data and instruction cache */
1165 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1166 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1167 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1168
1169 /* Clear all protocol processing engines */
1170 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1171 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1172 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1173 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1174 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1175 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1176 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1177 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1178
1179 return 0;
1180 }
1181
1182 /**
1183 * qla4_8xxx_ms_mem_write_128b - Writes data to MS/off-chip memory
1184 * @ha: Pointer to adapter structure
1185 * @addr: Flash address to write to
1186 * @data: Data to be written
1187 * @count: word_count to be written
1188 *
1189 * Return: On success return QLA_SUCCESS
1190 * On error return QLA_ERROR
1191 **/
qla4_8xxx_ms_mem_write_128b(struct scsi_qla_host * ha,uint64_t addr,uint32_t * data,uint32_t count)1192 int qla4_8xxx_ms_mem_write_128b(struct scsi_qla_host *ha, uint64_t addr,
1193 uint32_t *data, uint32_t count)
1194 {
1195 int i, j;
1196 uint32_t agt_ctrl;
1197 unsigned long flags;
1198 int ret_val = QLA_SUCCESS;
1199
1200 /* Only 128-bit aligned access */
1201 if (addr & 0xF) {
1202 ret_val = QLA_ERROR;
1203 goto exit_ms_mem_write;
1204 }
1205
1206 write_lock_irqsave(&ha->hw_lock, flags);
1207
1208 /* Write address */
1209 ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1210 if (ret_val == QLA_ERROR) {
1211 ql4_printk(KERN_ERR, ha, "%s: write to AGT_ADDR_HI failed\n",
1212 __func__);
1213 goto exit_ms_mem_write_unlock;
1214 }
1215
1216 for (i = 0; i < count; i++, addr += 16) {
1217 if (!((QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
1218 QLA8XXX_ADDR_QDR_NET_MAX)) ||
1219 (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
1220 QLA8XXX_ADDR_DDR_NET_MAX)))) {
1221 ret_val = QLA_ERROR;
1222 goto exit_ms_mem_write_unlock;
1223 }
1224
1225 ret_val = ha->isp_ops->wr_reg_indirect(ha,
1226 MD_MIU_TEST_AGT_ADDR_LO,
1227 addr);
1228 /* Write data */
1229 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1230 MD_MIU_TEST_AGT_WRDATA_LO,
1231 *data++);
1232 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1233 MD_MIU_TEST_AGT_WRDATA_HI,
1234 *data++);
1235 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1236 MD_MIU_TEST_AGT_WRDATA_ULO,
1237 *data++);
1238 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1239 MD_MIU_TEST_AGT_WRDATA_UHI,
1240 *data++);
1241 if (ret_val == QLA_ERROR) {
1242 ql4_printk(KERN_ERR, ha, "%s: write to AGT_WRDATA failed\n",
1243 __func__);
1244 goto exit_ms_mem_write_unlock;
1245 }
1246
1247 /* Check write status */
1248 ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
1249 MIU_TA_CTL_WRITE_ENABLE);
1250 ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1251 MD_MIU_TEST_AGT_CTRL,
1252 MIU_TA_CTL_WRITE_START);
1253 if (ret_val == QLA_ERROR) {
1254 ql4_printk(KERN_ERR, ha, "%s: write to AGT_CTRL failed\n",
1255 __func__);
1256 goto exit_ms_mem_write_unlock;
1257 }
1258
1259 for (j = 0; j < MAX_CTL_CHECK; j++) {
1260 ret_val = ha->isp_ops->rd_reg_indirect(ha,
1261 MD_MIU_TEST_AGT_CTRL,
1262 &agt_ctrl);
1263 if (ret_val == QLA_ERROR) {
1264 ql4_printk(KERN_ERR, ha, "%s: failed to read MD_MIU_TEST_AGT_CTRL\n",
1265 __func__);
1266 goto exit_ms_mem_write_unlock;
1267 }
1268 if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1269 break;
1270 }
1271
1272 /* Status check failed */
1273 if (j >= MAX_CTL_CHECK) {
1274 printk_ratelimited(KERN_ERR "%s: MS memory write failed!\n",
1275 __func__);
1276 ret_val = QLA_ERROR;
1277 goto exit_ms_mem_write_unlock;
1278 }
1279 }
1280
1281 exit_ms_mem_write_unlock:
1282 write_unlock_irqrestore(&ha->hw_lock, flags);
1283
1284 exit_ms_mem_write:
1285 return ret_val;
1286 }
1287
1288 static int
qla4_82xx_load_from_flash(struct scsi_qla_host * ha,uint32_t image_start)1289 qla4_82xx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1290 {
1291 int i, rval = 0;
1292 long size = 0;
1293 long flashaddr, memaddr;
1294 u64 data;
1295 u32 high, low;
1296
1297 flashaddr = memaddr = ha->hw.flt_region_bootload;
1298 size = (image_start - flashaddr) / 8;
1299
1300 DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1301 ha->host_no, __func__, flashaddr, image_start));
1302
1303 for (i = 0; i < size; i++) {
1304 if ((qla4_82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1305 (qla4_82xx_rom_fast_read(ha, flashaddr + 4,
1306 (int *)&high))) {
1307 rval = -1;
1308 goto exit_load_from_flash;
1309 }
1310 data = ((u64)high << 32) | low ;
1311 rval = qla4_82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1312 if (rval)
1313 goto exit_load_from_flash;
1314
1315 flashaddr += 8;
1316 memaddr += 8;
1317
1318 if (i % 0x1000 == 0)
1319 msleep(1);
1320
1321 }
1322
1323 udelay(100);
1324
1325 read_lock(&ha->hw_lock);
1326 qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1327 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1328 read_unlock(&ha->hw_lock);
1329
1330 exit_load_from_flash:
1331 return rval;
1332 }
1333
qla4_82xx_load_fw(struct scsi_qla_host * ha,uint32_t image_start)1334 static int qla4_82xx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1335 {
1336 u32 rst;
1337
1338 qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1339 if (qla4_82xx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1340 printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1341 __func__);
1342 return QLA_ERROR;
1343 }
1344
1345 udelay(500);
1346
1347 /* at this point, QM is in reset. This could be a problem if there are
1348 * incoming d* transition queue messages. QM/PCIE could wedge.
1349 * To get around this, QM is brought out of reset.
1350 */
1351
1352 rst = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1353 /* unreset qm */
1354 rst &= ~(1 << 28);
1355 qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1356
1357 if (qla4_82xx_load_from_flash(ha, image_start)) {
1358 printk("%s: Error trying to load fw from flash!\n", __func__);
1359 return QLA_ERROR;
1360 }
1361
1362 return QLA_SUCCESS;
1363 }
1364
1365 int
qla4_82xx_pci_mem_read_2M(struct scsi_qla_host * ha,u64 off,void * data,int size)1366 qla4_82xx_pci_mem_read_2M(struct scsi_qla_host *ha,
1367 u64 off, void *data, int size)
1368 {
1369 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1370 int shift_amount;
1371 uint32_t temp;
1372 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1373
1374 /*
1375 * If not MN, go check for MS or invalid.
1376 */
1377
1378 if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1379 mem_crb = QLA82XX_CRB_QDR_NET;
1380 else {
1381 mem_crb = QLA82XX_CRB_DDR_NET;
1382 if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1383 return qla4_82xx_pci_mem_read_direct(ha,
1384 off, data, size);
1385 }
1386
1387
1388 off8 = off & 0xfffffff0;
1389 off0[0] = off & 0xf;
1390 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1391 shift_amount = 4;
1392
1393 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1394 off0[1] = 0;
1395 sz[1] = size - sz[0];
1396
1397 for (i = 0; i < loop; i++) {
1398 temp = off8 + (i << shift_amount);
1399 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1400 temp = 0;
1401 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1402 temp = MIU_TA_CTL_ENABLE;
1403 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1404 temp = MIU_TA_CTL_START_ENABLE;
1405 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1406
1407 for (j = 0; j < MAX_CTL_CHECK; j++) {
1408 temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1409 if ((temp & MIU_TA_CTL_BUSY) == 0)
1410 break;
1411 }
1412
1413 if (j >= MAX_CTL_CHECK) {
1414 printk_ratelimited(KERN_ERR
1415 "%s: failed to read through agent\n",
1416 __func__);
1417 break;
1418 }
1419
1420 start = off0[i] >> 2;
1421 end = (off0[i] + sz[i] - 1) >> 2;
1422 for (k = start; k <= end; k++) {
1423 temp = qla4_82xx_rd_32(ha,
1424 mem_crb + MIU_TEST_AGT_RDDATA(k));
1425 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1426 }
1427 }
1428
1429 if (j >= MAX_CTL_CHECK)
1430 return -1;
1431
1432 if ((off0[0] & 7) == 0) {
1433 val = word[0];
1434 } else {
1435 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1436 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1437 }
1438
1439 switch (size) {
1440 case 1:
1441 *(uint8_t *)data = val;
1442 break;
1443 case 2:
1444 *(uint16_t *)data = val;
1445 break;
1446 case 4:
1447 *(uint32_t *)data = val;
1448 break;
1449 case 8:
1450 *(uint64_t *)data = val;
1451 break;
1452 }
1453 return 0;
1454 }
1455
1456 int
qla4_82xx_pci_mem_write_2M(struct scsi_qla_host * ha,u64 off,void * data,int size)1457 qla4_82xx_pci_mem_write_2M(struct scsi_qla_host *ha,
1458 u64 off, void *data, int size)
1459 {
1460 int i, j, ret = 0, loop, sz[2], off0;
1461 int scale, shift_amount, startword;
1462 uint32_t temp;
1463 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1464
1465 /*
1466 * If not MN, go check for MS or invalid.
1467 */
1468 if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1469 mem_crb = QLA82XX_CRB_QDR_NET;
1470 else {
1471 mem_crb = QLA82XX_CRB_DDR_NET;
1472 if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1473 return qla4_82xx_pci_mem_write_direct(ha,
1474 off, data, size);
1475 }
1476
1477 off0 = off & 0x7;
1478 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1479 sz[1] = size - sz[0];
1480
1481 off8 = off & 0xfffffff0;
1482 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1483 shift_amount = 4;
1484 scale = 2;
1485 startword = (off & 0xf)/8;
1486
1487 for (i = 0; i < loop; i++) {
1488 if (qla4_82xx_pci_mem_read_2M(ha, off8 +
1489 (i << shift_amount), &word[i * scale], 8))
1490 return -1;
1491 }
1492
1493 switch (size) {
1494 case 1:
1495 tmpw = *((uint8_t *)data);
1496 break;
1497 case 2:
1498 tmpw = *((uint16_t *)data);
1499 break;
1500 case 4:
1501 tmpw = *((uint32_t *)data);
1502 break;
1503 case 8:
1504 default:
1505 tmpw = *((uint64_t *)data);
1506 break;
1507 }
1508
1509 if (sz[0] == 8)
1510 word[startword] = tmpw;
1511 else {
1512 word[startword] &=
1513 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1514 word[startword] |= tmpw << (off0 * 8);
1515 }
1516
1517 if (sz[1] != 0) {
1518 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1519 word[startword+1] |= tmpw >> (sz[0] * 8);
1520 }
1521
1522 for (i = 0; i < loop; i++) {
1523 temp = off8 + (i << shift_amount);
1524 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1525 temp = 0;
1526 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1527 temp = word[i * scale] & 0xffffffff;
1528 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1529 temp = (word[i * scale] >> 32) & 0xffffffff;
1530 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1531 temp = word[i*scale + 1] & 0xffffffff;
1532 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1533 temp);
1534 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1535 qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1536 temp);
1537
1538 temp = MIU_TA_CTL_WRITE_ENABLE;
1539 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1540 temp = MIU_TA_CTL_WRITE_START;
1541 qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1542
1543 for (j = 0; j < MAX_CTL_CHECK; j++) {
1544 temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1545 if ((temp & MIU_TA_CTL_BUSY) == 0)
1546 break;
1547 }
1548
1549 if (j >= MAX_CTL_CHECK) {
1550 if (printk_ratelimit())
1551 ql4_printk(KERN_ERR, ha,
1552 "%s: failed to read through agent\n",
1553 __func__);
1554 ret = -1;
1555 break;
1556 }
1557 }
1558
1559 return ret;
1560 }
1561
qla4_82xx_cmdpeg_ready(struct scsi_qla_host * ha,int pegtune_val)1562 static int qla4_82xx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
1563 {
1564 u32 val = 0;
1565 int retries = 60;
1566
1567 if (!pegtune_val) {
1568 do {
1569 val = qla4_82xx_rd_32(ha, CRB_CMDPEG_STATE);
1570 if ((val == PHAN_INITIALIZE_COMPLETE) ||
1571 (val == PHAN_INITIALIZE_ACK))
1572 return 0;
1573 set_current_state(TASK_UNINTERRUPTIBLE);
1574 schedule_timeout(500);
1575
1576 } while (--retries);
1577
1578 if (!retries) {
1579 pegtune_val = qla4_82xx_rd_32(ha,
1580 QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1581 printk(KERN_WARNING "%s: init failed, "
1582 "pegtune_val = %x\n", __func__, pegtune_val);
1583 return -1;
1584 }
1585 }
1586 return 0;
1587 }
1588
qla4_82xx_rcvpeg_ready(struct scsi_qla_host * ha)1589 static int qla4_82xx_rcvpeg_ready(struct scsi_qla_host *ha)
1590 {
1591 uint32_t state = 0;
1592 int loops = 0;
1593
1594 /* Window 1 call */
1595 read_lock(&ha->hw_lock);
1596 state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1597 read_unlock(&ha->hw_lock);
1598
1599 while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
1600 udelay(100);
1601 /* Window 1 call */
1602 read_lock(&ha->hw_lock);
1603 state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1604 read_unlock(&ha->hw_lock);
1605
1606 loops++;
1607 }
1608
1609 if (loops >= 30000) {
1610 DEBUG2(ql4_printk(KERN_INFO, ha,
1611 "Receive Peg initialization not complete: 0x%x.\n", state));
1612 return QLA_ERROR;
1613 }
1614
1615 return QLA_SUCCESS;
1616 }
1617
1618 void
qla4_8xxx_set_drv_active(struct scsi_qla_host * ha)1619 qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
1620 {
1621 uint32_t drv_active;
1622
1623 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1624
1625 /*
1626 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1627 * shift 1 by func_num to set a bit for the function.
1628 * For ISP8022, drv_active has 4 bits per function
1629 */
1630 if (is_qla8032(ha) || is_qla8042(ha))
1631 drv_active |= (1 << ha->func_num);
1632 else
1633 drv_active |= (1 << (ha->func_num * 4));
1634
1635 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1636 __func__, ha->host_no, drv_active);
1637 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1638 }
1639
1640 void
qla4_8xxx_clear_drv_active(struct scsi_qla_host * ha)1641 qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1642 {
1643 uint32_t drv_active;
1644
1645 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1646
1647 /*
1648 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1649 * shift 1 by func_num to set a bit for the function.
1650 * For ISP8022, drv_active has 4 bits per function
1651 */
1652 if (is_qla8032(ha) || is_qla8042(ha))
1653 drv_active &= ~(1 << (ha->func_num));
1654 else
1655 drv_active &= ~(1 << (ha->func_num * 4));
1656
1657 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1658 __func__, ha->host_no, drv_active);
1659 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1660 }
1661
qla4_8xxx_need_reset(struct scsi_qla_host * ha)1662 inline int qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1663 {
1664 uint32_t drv_state, drv_active;
1665 int rval;
1666
1667 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1668 drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1669
1670 /*
1671 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1672 * shift 1 by func_num to set a bit for the function.
1673 * For ISP8022, drv_active has 4 bits per function
1674 */
1675 if (is_qla8032(ha) || is_qla8042(ha))
1676 rval = drv_state & (1 << ha->func_num);
1677 else
1678 rval = drv_state & (1 << (ha->func_num * 4));
1679
1680 if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1681 rval = 1;
1682
1683 return rval;
1684 }
1685
qla4_8xxx_set_rst_ready(struct scsi_qla_host * ha)1686 void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1687 {
1688 uint32_t drv_state;
1689
1690 drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1691
1692 /*
1693 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1694 * shift 1 by func_num to set a bit for the function.
1695 * For ISP8022, drv_active has 4 bits per function
1696 */
1697 if (is_qla8032(ha) || is_qla8042(ha))
1698 drv_state |= (1 << ha->func_num);
1699 else
1700 drv_state |= (1 << (ha->func_num * 4));
1701
1702 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1703 __func__, ha->host_no, drv_state);
1704 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1705 }
1706
qla4_8xxx_clear_rst_ready(struct scsi_qla_host * ha)1707 void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1708 {
1709 uint32_t drv_state;
1710
1711 drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1712
1713 /*
1714 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1715 * shift 1 by func_num to set a bit for the function.
1716 * For ISP8022, drv_active has 4 bits per function
1717 */
1718 if (is_qla8032(ha) || is_qla8042(ha))
1719 drv_state &= ~(1 << ha->func_num);
1720 else
1721 drv_state &= ~(1 << (ha->func_num * 4));
1722
1723 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1724 __func__, ha->host_no, drv_state);
1725 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1726 }
1727
1728 static inline void
qla4_8xxx_set_qsnt_ready(struct scsi_qla_host * ha)1729 qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1730 {
1731 uint32_t qsnt_state;
1732
1733 qsnt_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1734
1735 /*
1736 * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1737 * shift 1 by func_num to set a bit for the function.
1738 * For ISP8022, drv_active has 4 bits per function.
1739 */
1740 if (is_qla8032(ha) || is_qla8042(ha))
1741 qsnt_state |= (1 << ha->func_num);
1742 else
1743 qsnt_state |= (2 << (ha->func_num * 4));
1744
1745 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, qsnt_state);
1746 }
1747
1748
1749 static int
qla4_82xx_start_firmware(struct scsi_qla_host * ha,uint32_t image_start)1750 qla4_82xx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1751 {
1752 uint16_t lnk;
1753
1754 /* scrub dma mask expansion register */
1755 qla4_82xx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1756
1757 /* Overwrite stale initialization register values */
1758 qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1759 qla4_82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1760 qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1761 qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1762
1763 if (qla4_82xx_load_fw(ha, image_start) != QLA_SUCCESS) {
1764 printk("%s: Error trying to start fw!\n", __func__);
1765 return QLA_ERROR;
1766 }
1767
1768 /* Handshake with the card before we register the devices. */
1769 if (qla4_82xx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1770 printk("%s: Error during card handshake!\n", __func__);
1771 return QLA_ERROR;
1772 }
1773
1774 /* Negotiated Link width */
1775 pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
1776 ha->link_width = (lnk >> 4) & 0x3f;
1777
1778 /* Synchronize with Receive peg */
1779 return qla4_82xx_rcvpeg_ready(ha);
1780 }
1781
qla4_82xx_try_start_fw(struct scsi_qla_host * ha)1782 int qla4_82xx_try_start_fw(struct scsi_qla_host *ha)
1783 {
1784 int rval = QLA_ERROR;
1785
1786 /*
1787 * FW Load priority:
1788 * 1) Operational firmware residing in flash.
1789 * 2) Fail
1790 */
1791
1792 ql4_printk(KERN_INFO, ha,
1793 "FW: Retrieving flash offsets from FLT/FDT ...\n");
1794 rval = qla4_8xxx_get_flash_info(ha);
1795 if (rval != QLA_SUCCESS)
1796 return rval;
1797
1798 ql4_printk(KERN_INFO, ha,
1799 "FW: Attempting to load firmware from flash...\n");
1800 rval = qla4_82xx_start_firmware(ha, ha->hw.flt_region_fw);
1801
1802 if (rval != QLA_SUCCESS) {
1803 ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1804 " FAILED...\n");
1805 return rval;
1806 }
1807
1808 return rval;
1809 }
1810
qla4_82xx_rom_lock_recovery(struct scsi_qla_host * ha)1811 void qla4_82xx_rom_lock_recovery(struct scsi_qla_host *ha)
1812 {
1813 if (qla4_82xx_rom_lock(ha)) {
1814 /* Someone else is holding the lock. */
1815 dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1816 }
1817
1818 /*
1819 * Either we got the lock, or someone
1820 * else died while holding it.
1821 * In either case, unlock.
1822 */
1823 qla4_82xx_rom_unlock(ha);
1824 }
1825
ql4_84xx_poll_wait_for_ready(struct scsi_qla_host * ha,uint32_t addr1,uint32_t mask)1826 static uint32_t ql4_84xx_poll_wait_for_ready(struct scsi_qla_host *ha,
1827 uint32_t addr1, uint32_t mask)
1828 {
1829 unsigned long timeout;
1830 uint32_t rval = QLA_SUCCESS;
1831 uint32_t temp;
1832
1833 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1834 do {
1835 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
1836 if ((temp & mask) != 0)
1837 break;
1838
1839 if (time_after_eq(jiffies, timeout)) {
1840 ql4_printk(KERN_INFO, ha, "Error in processing rdmdio entry\n");
1841 return QLA_ERROR;
1842 }
1843 } while (1);
1844
1845 return rval;
1846 }
1847
ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host * ha,uint32_t addr1,uint32_t addr3,uint32_t mask,uint32_t addr,uint32_t * data_ptr)1848 static uint32_t ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host *ha, uint32_t addr1,
1849 uint32_t addr3, uint32_t mask, uint32_t addr,
1850 uint32_t *data_ptr)
1851 {
1852 int rval = QLA_SUCCESS;
1853 uint32_t temp;
1854 uint32_t data;
1855
1856 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1857 if (rval)
1858 goto exit_ipmdio_rd_reg;
1859
1860 temp = (0x40000000 | addr);
1861 ha->isp_ops->wr_reg_indirect(ha, addr1, temp);
1862
1863 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1864 if (rval)
1865 goto exit_ipmdio_rd_reg;
1866
1867 ha->isp_ops->rd_reg_indirect(ha, addr3, &data);
1868 *data_ptr = data;
1869
1870 exit_ipmdio_rd_reg:
1871 return rval;
1872 }
1873
1874
ql4_84xx_poll_wait_ipmdio_bus_idle(struct scsi_qla_host * ha,uint32_t addr1,uint32_t addr2,uint32_t addr3,uint32_t mask)1875 static uint32_t ql4_84xx_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *ha,
1876 uint32_t addr1,
1877 uint32_t addr2,
1878 uint32_t addr3,
1879 uint32_t mask)
1880 {
1881 unsigned long timeout;
1882 uint32_t temp;
1883 uint32_t rval = QLA_SUCCESS;
1884
1885 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1886 do {
1887 ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3, mask, addr2, &temp);
1888 if ((temp & 0x1) != 1)
1889 break;
1890 if (time_after_eq(jiffies, timeout)) {
1891 ql4_printk(KERN_INFO, ha, "Error in processing mdiobus idle\n");
1892 return QLA_ERROR;
1893 }
1894 } while (1);
1895
1896 return rval;
1897 }
1898
ql4_84xx_ipmdio_wr_reg(struct scsi_qla_host * ha,uint32_t addr1,uint32_t addr3,uint32_t mask,uint32_t addr,uint32_t value)1899 static int ql4_84xx_ipmdio_wr_reg(struct scsi_qla_host *ha,
1900 uint32_t addr1, uint32_t addr3,
1901 uint32_t mask, uint32_t addr,
1902 uint32_t value)
1903 {
1904 int rval = QLA_SUCCESS;
1905
1906 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1907 if (rval)
1908 goto exit_ipmdio_wr_reg;
1909
1910 ha->isp_ops->wr_reg_indirect(ha, addr3, value);
1911 ha->isp_ops->wr_reg_indirect(ha, addr1, addr);
1912
1913 rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1914 if (rval)
1915 goto exit_ipmdio_wr_reg;
1916
1917 exit_ipmdio_wr_reg:
1918 return rval;
1919 }
1920
qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)1921 static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
1922 struct qla8xxx_minidump_entry_hdr *entry_hdr,
1923 uint32_t **d_ptr)
1924 {
1925 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
1926 struct qla8xxx_minidump_entry_crb *crb_hdr;
1927 uint32_t *data_ptr = *d_ptr;
1928
1929 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1930 crb_hdr = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
1931 r_addr = crb_hdr->addr;
1932 r_stride = crb_hdr->crb_strd.addr_stride;
1933 loop_cnt = crb_hdr->op_count;
1934
1935 for (i = 0; i < loop_cnt; i++) {
1936 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
1937 *data_ptr++ = cpu_to_le32(r_addr);
1938 *data_ptr++ = cpu_to_le32(r_value);
1939 r_addr += r_stride;
1940 }
1941 *d_ptr = data_ptr;
1942 }
1943
qla4_83xx_check_dma_engine_state(struct scsi_qla_host * ha)1944 static int qla4_83xx_check_dma_engine_state(struct scsi_qla_host *ha)
1945 {
1946 int rval = QLA_SUCCESS;
1947 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1948 uint64_t dma_base_addr = 0;
1949 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1950
1951 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1952 ha->fw_dump_tmplt_hdr;
1953 dma_eng_num =
1954 tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1955 dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1956 (dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1957
1958 /* Read the pex-dma's command-status-and-control register. */
1959 rval = ha->isp_ops->rd_reg_indirect(ha,
1960 (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
1961 &cmd_sts_and_cntrl);
1962
1963 if (rval)
1964 return QLA_ERROR;
1965
1966 /* Check if requested pex-dma engine is available. */
1967 if (cmd_sts_and_cntrl & BIT_31)
1968 return QLA_SUCCESS;
1969 else
1970 return QLA_ERROR;
1971 }
1972
qla4_83xx_start_pex_dma(struct scsi_qla_host * ha,struct qla4_83xx_minidump_entry_rdmem_pex_dma * m_hdr)1973 static int qla4_83xx_start_pex_dma(struct scsi_qla_host *ha,
1974 struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr)
1975 {
1976 int rval = QLA_SUCCESS, wait = 0;
1977 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1978 uint64_t dma_base_addr = 0;
1979 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1980
1981 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1982 ha->fw_dump_tmplt_hdr;
1983 dma_eng_num =
1984 tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1985 dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1986 (dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1987
1988 rval = ha->isp_ops->wr_reg_indirect(ha,
1989 dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_LOW,
1990 m_hdr->desc_card_addr);
1991 if (rval)
1992 goto error_exit;
1993
1994 rval = ha->isp_ops->wr_reg_indirect(ha,
1995 dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_HIGH, 0);
1996 if (rval)
1997 goto error_exit;
1998
1999 rval = ha->isp_ops->wr_reg_indirect(ha,
2000 dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL,
2001 m_hdr->start_dma_cmd);
2002 if (rval)
2003 goto error_exit;
2004
2005 /* Wait for dma operation to complete. */
2006 for (wait = 0; wait < QLA83XX_PEX_DMA_MAX_WAIT; wait++) {
2007 rval = ha->isp_ops->rd_reg_indirect(ha,
2008 (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
2009 &cmd_sts_and_cntrl);
2010 if (rval)
2011 goto error_exit;
2012
2013 if ((cmd_sts_and_cntrl & BIT_1) == 0)
2014 break;
2015 else
2016 udelay(10);
2017 }
2018
2019 /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2020 if (wait >= QLA83XX_PEX_DMA_MAX_WAIT) {
2021 rval = QLA_ERROR;
2022 goto error_exit;
2023 }
2024
2025 error_exit:
2026 return rval;
2027 }
2028
qla4_8xxx_minidump_pex_dma_read(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2029 static int qla4_8xxx_minidump_pex_dma_read(struct scsi_qla_host *ha,
2030 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2031 uint32_t **d_ptr)
2032 {
2033 int rval = QLA_SUCCESS;
2034 struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2035 uint32_t size, read_size;
2036 uint8_t *data_ptr = (uint8_t *)*d_ptr;
2037 void *rdmem_buffer = NULL;
2038 dma_addr_t rdmem_dma;
2039 struct qla4_83xx_pex_dma_descriptor dma_desc;
2040
2041 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2042
2043 rval = qla4_83xx_check_dma_engine_state(ha);
2044 if (rval != QLA_SUCCESS) {
2045 DEBUG2(ql4_printk(KERN_INFO, ha,
2046 "%s: DMA engine not available. Fallback to rdmem-read.\n",
2047 __func__));
2048 return QLA_ERROR;
2049 }
2050
2051 m_hdr = (struct qla4_83xx_minidump_entry_rdmem_pex_dma *)entry_hdr;
2052 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2053 QLA83XX_PEX_DMA_READ_SIZE,
2054 &rdmem_dma, GFP_KERNEL);
2055 if (!rdmem_buffer) {
2056 DEBUG2(ql4_printk(KERN_INFO, ha,
2057 "%s: Unable to allocate rdmem dma buffer\n",
2058 __func__));
2059 return QLA_ERROR;
2060 }
2061
2062 /* Prepare pex-dma descriptor to be written to MS memory. */
2063 /* dma-desc-cmd layout:
2064 * 0-3: dma-desc-cmd 0-3
2065 * 4-7: pcid function number
2066 * 8-15: dma-desc-cmd 8-15
2067 */
2068 dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2069 dma_desc.cmd.dma_desc_cmd |= ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2070 dma_desc.dma_bus_addr = rdmem_dma;
2071
2072 size = 0;
2073 read_size = 0;
2074 /*
2075 * Perform rdmem operation using pex-dma.
2076 * Prepare dma in chunks of QLA83XX_PEX_DMA_READ_SIZE.
2077 */
2078 while (read_size < m_hdr->read_data_size) {
2079 if (m_hdr->read_data_size - read_size >=
2080 QLA83XX_PEX_DMA_READ_SIZE)
2081 size = QLA83XX_PEX_DMA_READ_SIZE;
2082 else {
2083 size = (m_hdr->read_data_size - read_size);
2084
2085 if (rdmem_buffer)
2086 dma_free_coherent(&ha->pdev->dev,
2087 QLA83XX_PEX_DMA_READ_SIZE,
2088 rdmem_buffer, rdmem_dma);
2089
2090 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, size,
2091 &rdmem_dma,
2092 GFP_KERNEL);
2093 if (!rdmem_buffer) {
2094 DEBUG2(ql4_printk(KERN_INFO, ha,
2095 "%s: Unable to allocate rdmem dma buffer\n",
2096 __func__));
2097 return QLA_ERROR;
2098 }
2099 dma_desc.dma_bus_addr = rdmem_dma;
2100 }
2101
2102 dma_desc.src_addr = m_hdr->read_addr + read_size;
2103 dma_desc.cmd.read_data_size = size;
2104
2105 /* Prepare: Write pex-dma descriptor to MS memory. */
2106 rval = qla4_8xxx_ms_mem_write_128b(ha,
2107 (uint64_t)m_hdr->desc_card_addr,
2108 (uint32_t *)&dma_desc,
2109 (sizeof(struct qla4_83xx_pex_dma_descriptor)/16));
2110 if (rval != QLA_SUCCESS) {
2111 ql4_printk(KERN_INFO, ha,
2112 "%s: Error writing rdmem-dma-init to MS !!!\n",
2113 __func__);
2114 goto error_exit;
2115 }
2116
2117 DEBUG2(ql4_printk(KERN_INFO, ha,
2118 "%s: Dma-desc: Instruct for rdmem dma (size 0x%x).\n",
2119 __func__, size));
2120 /* Execute: Start pex-dma operation. */
2121 rval = qla4_83xx_start_pex_dma(ha, m_hdr);
2122 if (rval != QLA_SUCCESS) {
2123 DEBUG2(ql4_printk(KERN_INFO, ha,
2124 "scsi(%ld): start-pex-dma failed rval=0x%x\n",
2125 ha->host_no, rval));
2126 goto error_exit;
2127 }
2128
2129 memcpy(data_ptr, rdmem_buffer, size);
2130 data_ptr += size;
2131 read_size += size;
2132 }
2133
2134 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2135
2136 *d_ptr = (uint32_t *)data_ptr;
2137
2138 error_exit:
2139 if (rdmem_buffer)
2140 dma_free_coherent(&ha->pdev->dev, size, rdmem_buffer,
2141 rdmem_dma);
2142
2143 return rval;
2144 }
2145
qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2146 static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
2147 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2148 uint32_t **d_ptr)
2149 {
2150 uint32_t addr, r_addr, c_addr, t_r_addr;
2151 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2152 unsigned long p_wait, w_time, p_mask;
2153 uint32_t c_value_w, c_value_r;
2154 struct qla8xxx_minidump_entry_cache *cache_hdr;
2155 int rval = QLA_ERROR;
2156 uint32_t *data_ptr = *d_ptr;
2157
2158 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2159 cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2160
2161 loop_count = cache_hdr->op_count;
2162 r_addr = cache_hdr->read_addr;
2163 c_addr = cache_hdr->control_addr;
2164 c_value_w = cache_hdr->cache_ctrl.write_value;
2165
2166 t_r_addr = cache_hdr->tag_reg_addr;
2167 t_value = cache_hdr->addr_ctrl.init_tag_value;
2168 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2169 p_wait = cache_hdr->cache_ctrl.poll_wait;
2170 p_mask = cache_hdr->cache_ctrl.poll_mask;
2171
2172 for (i = 0; i < loop_count; i++) {
2173 ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2174
2175 if (c_value_w)
2176 ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2177
2178 if (p_mask) {
2179 w_time = jiffies + p_wait;
2180 do {
2181 ha->isp_ops->rd_reg_indirect(ha, c_addr,
2182 &c_value_r);
2183 if ((c_value_r & p_mask) == 0) {
2184 break;
2185 } else if (time_after_eq(jiffies, w_time)) {
2186 /* capturing dump failed */
2187 return rval;
2188 }
2189 } while (1);
2190 }
2191
2192 addr = r_addr;
2193 for (k = 0; k < r_cnt; k++) {
2194 ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2195 *data_ptr++ = cpu_to_le32(r_value);
2196 addr += cache_hdr->read_ctrl.read_addr_stride;
2197 }
2198
2199 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2200 }
2201 *d_ptr = data_ptr;
2202 return QLA_SUCCESS;
2203 }
2204
qla4_8xxx_minidump_process_control(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr)2205 static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
2206 struct qla8xxx_minidump_entry_hdr *entry_hdr)
2207 {
2208 struct qla8xxx_minidump_entry_crb *crb_entry;
2209 uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
2210 uint32_t crb_addr;
2211 unsigned long wtime;
2212 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2213 int i;
2214
2215 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2216 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
2217 ha->fw_dump_tmplt_hdr;
2218 crb_entry = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
2219
2220 crb_addr = crb_entry->addr;
2221 for (i = 0; i < crb_entry->op_count; i++) {
2222 opcode = crb_entry->crb_ctrl.opcode;
2223 if (opcode & QLA8XXX_DBG_OPCODE_WR) {
2224 ha->isp_ops->wr_reg_indirect(ha, crb_addr,
2225 crb_entry->value_1);
2226 opcode &= ~QLA8XXX_DBG_OPCODE_WR;
2227 }
2228 if (opcode & QLA8XXX_DBG_OPCODE_RW) {
2229 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2230 ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2231 opcode &= ~QLA8XXX_DBG_OPCODE_RW;
2232 }
2233 if (opcode & QLA8XXX_DBG_OPCODE_AND) {
2234 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2235 read_value &= crb_entry->value_2;
2236 opcode &= ~QLA8XXX_DBG_OPCODE_AND;
2237 if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2238 read_value |= crb_entry->value_3;
2239 opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2240 }
2241 ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2242 }
2243 if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2244 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2245 read_value |= crb_entry->value_3;
2246 ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2247 opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2248 }
2249 if (opcode & QLA8XXX_DBG_OPCODE_POLL) {
2250 poll_time = crb_entry->crb_strd.poll_timeout;
2251 wtime = jiffies + poll_time;
2252 ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2253
2254 do {
2255 if ((read_value & crb_entry->value_2) ==
2256 crb_entry->value_1) {
2257 break;
2258 } else if (time_after_eq(jiffies, wtime)) {
2259 /* capturing dump failed */
2260 rval = QLA_ERROR;
2261 break;
2262 } else {
2263 ha->isp_ops->rd_reg_indirect(ha,
2264 crb_addr, &read_value);
2265 }
2266 } while (1);
2267 opcode &= ~QLA8XXX_DBG_OPCODE_POLL;
2268 }
2269
2270 if (opcode & QLA8XXX_DBG_OPCODE_RDSTATE) {
2271 if (crb_entry->crb_strd.state_index_a) {
2272 index = crb_entry->crb_strd.state_index_a;
2273 addr = tmplt_hdr->saved_state_array[index];
2274 } else {
2275 addr = crb_addr;
2276 }
2277
2278 ha->isp_ops->rd_reg_indirect(ha, addr, &read_value);
2279 index = crb_entry->crb_ctrl.state_index_v;
2280 tmplt_hdr->saved_state_array[index] = read_value;
2281 opcode &= ~QLA8XXX_DBG_OPCODE_RDSTATE;
2282 }
2283
2284 if (opcode & QLA8XXX_DBG_OPCODE_WRSTATE) {
2285 if (crb_entry->crb_strd.state_index_a) {
2286 index = crb_entry->crb_strd.state_index_a;
2287 addr = tmplt_hdr->saved_state_array[index];
2288 } else {
2289 addr = crb_addr;
2290 }
2291
2292 if (crb_entry->crb_ctrl.state_index_v) {
2293 index = crb_entry->crb_ctrl.state_index_v;
2294 read_value =
2295 tmplt_hdr->saved_state_array[index];
2296 } else {
2297 read_value = crb_entry->value_1;
2298 }
2299
2300 ha->isp_ops->wr_reg_indirect(ha, addr, read_value);
2301 opcode &= ~QLA8XXX_DBG_OPCODE_WRSTATE;
2302 }
2303
2304 if (opcode & QLA8XXX_DBG_OPCODE_MDSTATE) {
2305 index = crb_entry->crb_ctrl.state_index_v;
2306 read_value = tmplt_hdr->saved_state_array[index];
2307 read_value <<= crb_entry->crb_ctrl.shl;
2308 read_value >>= crb_entry->crb_ctrl.shr;
2309 if (crb_entry->value_2)
2310 read_value &= crb_entry->value_2;
2311 read_value |= crb_entry->value_3;
2312 read_value += crb_entry->value_1;
2313 tmplt_hdr->saved_state_array[index] = read_value;
2314 opcode &= ~QLA8XXX_DBG_OPCODE_MDSTATE;
2315 }
2316 crb_addr += crb_entry->crb_strd.addr_stride;
2317 }
2318 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2319 return rval;
2320 }
2321
qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2322 static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
2323 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2324 uint32_t **d_ptr)
2325 {
2326 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2327 struct qla8xxx_minidump_entry_rdocm *ocm_hdr;
2328 uint32_t *data_ptr = *d_ptr;
2329
2330 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2331 ocm_hdr = (struct qla8xxx_minidump_entry_rdocm *)entry_hdr;
2332 r_addr = ocm_hdr->read_addr;
2333 r_stride = ocm_hdr->read_addr_stride;
2334 loop_cnt = ocm_hdr->op_count;
2335
2336 DEBUG2(ql4_printk(KERN_INFO, ha,
2337 "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2338 __func__, r_addr, r_stride, loop_cnt));
2339
2340 for (i = 0; i < loop_cnt; i++) {
2341 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2342 *data_ptr++ = cpu_to_le32(r_value);
2343 r_addr += r_stride;
2344 }
2345 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
2346 __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))));
2347 *d_ptr = data_ptr;
2348 }
2349
qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2350 static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
2351 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2352 uint32_t **d_ptr)
2353 {
2354 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
2355 struct qla8xxx_minidump_entry_mux *mux_hdr;
2356 uint32_t *data_ptr = *d_ptr;
2357
2358 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2359 mux_hdr = (struct qla8xxx_minidump_entry_mux *)entry_hdr;
2360 r_addr = mux_hdr->read_addr;
2361 s_addr = mux_hdr->select_addr;
2362 s_stride = mux_hdr->select_value_stride;
2363 s_value = mux_hdr->select_value;
2364 loop_cnt = mux_hdr->op_count;
2365
2366 for (i = 0; i < loop_cnt; i++) {
2367 ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2368 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2369 *data_ptr++ = cpu_to_le32(s_value);
2370 *data_ptr++ = cpu_to_le32(r_value);
2371 s_value += s_stride;
2372 }
2373 *d_ptr = data_ptr;
2374 }
2375
qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2376 static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
2377 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2378 uint32_t **d_ptr)
2379 {
2380 uint32_t addr, r_addr, c_addr, t_r_addr;
2381 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2382 uint32_t c_value_w;
2383 struct qla8xxx_minidump_entry_cache *cache_hdr;
2384 uint32_t *data_ptr = *d_ptr;
2385
2386 cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2387 loop_count = cache_hdr->op_count;
2388 r_addr = cache_hdr->read_addr;
2389 c_addr = cache_hdr->control_addr;
2390 c_value_w = cache_hdr->cache_ctrl.write_value;
2391
2392 t_r_addr = cache_hdr->tag_reg_addr;
2393 t_value = cache_hdr->addr_ctrl.init_tag_value;
2394 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2395
2396 for (i = 0; i < loop_count; i++) {
2397 ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2398 ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2399 addr = r_addr;
2400 for (k = 0; k < r_cnt; k++) {
2401 ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2402 *data_ptr++ = cpu_to_le32(r_value);
2403 addr += cache_hdr->read_ctrl.read_addr_stride;
2404 }
2405 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2406 }
2407 *d_ptr = data_ptr;
2408 }
2409
qla4_8xxx_minidump_process_queue(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2410 static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
2411 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2412 uint32_t **d_ptr)
2413 {
2414 uint32_t s_addr, r_addr;
2415 uint32_t r_stride, r_value, r_cnt, qid = 0;
2416 uint32_t i, k, loop_cnt;
2417 struct qla8xxx_minidump_entry_queue *q_hdr;
2418 uint32_t *data_ptr = *d_ptr;
2419
2420 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2421 q_hdr = (struct qla8xxx_minidump_entry_queue *)entry_hdr;
2422 s_addr = q_hdr->select_addr;
2423 r_cnt = q_hdr->rd_strd.read_addr_cnt;
2424 r_stride = q_hdr->rd_strd.read_addr_stride;
2425 loop_cnt = q_hdr->op_count;
2426
2427 for (i = 0; i < loop_cnt; i++) {
2428 ha->isp_ops->wr_reg_indirect(ha, s_addr, qid);
2429 r_addr = q_hdr->read_addr;
2430 for (k = 0; k < r_cnt; k++) {
2431 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2432 *data_ptr++ = cpu_to_le32(r_value);
2433 r_addr += r_stride;
2434 }
2435 qid += q_hdr->q_strd.queue_id_stride;
2436 }
2437 *d_ptr = data_ptr;
2438 }
2439
2440 #define MD_DIRECT_ROM_WINDOW 0x42110030
2441 #define MD_DIRECT_ROM_READ_BASE 0x42150000
2442
qla4_82xx_minidump_process_rdrom(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2443 static void qla4_82xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2444 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2445 uint32_t **d_ptr)
2446 {
2447 uint32_t r_addr, r_value;
2448 uint32_t i, loop_cnt;
2449 struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2450 uint32_t *data_ptr = *d_ptr;
2451
2452 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2453 rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2454 r_addr = rom_hdr->read_addr;
2455 loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
2456
2457 DEBUG2(ql4_printk(KERN_INFO, ha,
2458 "[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
2459 __func__, r_addr, loop_cnt));
2460
2461 for (i = 0; i < loop_cnt; i++) {
2462 ha->isp_ops->wr_reg_indirect(ha, MD_DIRECT_ROM_WINDOW,
2463 (r_addr & 0xFFFF0000));
2464 ha->isp_ops->rd_reg_indirect(ha,
2465 MD_DIRECT_ROM_READ_BASE + (r_addr & 0x0000FFFF),
2466 &r_value);
2467 *data_ptr++ = cpu_to_le32(r_value);
2468 r_addr += sizeof(uint32_t);
2469 }
2470 *d_ptr = data_ptr;
2471 }
2472
2473 #define MD_MIU_TEST_AGT_CTRL 0x41000090
2474 #define MD_MIU_TEST_AGT_ADDR_LO 0x41000094
2475 #define MD_MIU_TEST_AGT_ADDR_HI 0x41000098
2476
__qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2477 static int __qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2478 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2479 uint32_t **d_ptr)
2480 {
2481 uint32_t r_addr, r_value, r_data;
2482 uint32_t i, j, loop_cnt;
2483 struct qla8xxx_minidump_entry_rdmem *m_hdr;
2484 unsigned long flags;
2485 uint32_t *data_ptr = *d_ptr;
2486
2487 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2488 m_hdr = (struct qla8xxx_minidump_entry_rdmem *)entry_hdr;
2489 r_addr = m_hdr->read_addr;
2490 loop_cnt = m_hdr->read_data_size/16;
2491
2492 DEBUG2(ql4_printk(KERN_INFO, ha,
2493 "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2494 __func__, r_addr, m_hdr->read_data_size));
2495
2496 if (r_addr & 0xf) {
2497 DEBUG2(ql4_printk(KERN_INFO, ha,
2498 "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2499 __func__, r_addr));
2500 return QLA_ERROR;
2501 }
2502
2503 if (m_hdr->read_data_size % 16) {
2504 DEBUG2(ql4_printk(KERN_INFO, ha,
2505 "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2506 __func__, m_hdr->read_data_size));
2507 return QLA_ERROR;
2508 }
2509
2510 DEBUG2(ql4_printk(KERN_INFO, ha,
2511 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2512 __func__, r_addr, m_hdr->read_data_size, loop_cnt));
2513
2514 write_lock_irqsave(&ha->hw_lock, flags);
2515 for (i = 0; i < loop_cnt; i++) {
2516 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_LO,
2517 r_addr);
2518 r_value = 0;
2519 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI,
2520 r_value);
2521 r_value = MIU_TA_CTL_ENABLE;
2522 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2523 r_value = MIU_TA_CTL_START_ENABLE;
2524 ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2525
2526 for (j = 0; j < MAX_CTL_CHECK; j++) {
2527 ha->isp_ops->rd_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
2528 &r_value);
2529 if ((r_value & MIU_TA_CTL_BUSY) == 0)
2530 break;
2531 }
2532
2533 if (j >= MAX_CTL_CHECK) {
2534 printk_ratelimited(KERN_ERR
2535 "%s: failed to read through agent\n",
2536 __func__);
2537 write_unlock_irqrestore(&ha->hw_lock, flags);
2538 return QLA_SUCCESS;
2539 }
2540
2541 for (j = 0; j < 4; j++) {
2542 ha->isp_ops->rd_reg_indirect(ha,
2543 MD_MIU_TEST_AGT_RDDATA[j],
2544 &r_data);
2545 *data_ptr++ = cpu_to_le32(r_data);
2546 }
2547
2548 r_addr += 16;
2549 }
2550 write_unlock_irqrestore(&ha->hw_lock, flags);
2551
2552 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
2553 __func__, (loop_cnt * 16)));
2554
2555 *d_ptr = data_ptr;
2556 return QLA_SUCCESS;
2557 }
2558
qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2559 static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2560 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2561 uint32_t **d_ptr)
2562 {
2563 uint32_t *data_ptr = *d_ptr;
2564 int rval = QLA_SUCCESS;
2565
2566 rval = qla4_8xxx_minidump_pex_dma_read(ha, entry_hdr, &data_ptr);
2567 if (rval != QLA_SUCCESS)
2568 rval = __qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
2569 &data_ptr);
2570 *d_ptr = data_ptr;
2571 return rval;
2572 }
2573
qla4_8xxx_mark_entry_skipped(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,int index)2574 static void qla4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
2575 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2576 int index)
2577 {
2578 entry_hdr->d_ctrl.driver_flags |= QLA8XXX_DBG_SKIPPED_FLAG;
2579 DEBUG2(ql4_printk(KERN_INFO, ha,
2580 "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2581 ha->host_no, index, entry_hdr->entry_type,
2582 entry_hdr->d_ctrl.entry_capture_mask));
2583 /* If driver encounters a new entry type that it cannot process,
2584 * it should just skip the entry and adjust the total buffer size by
2585 * from subtracting the skipped bytes from it
2586 */
2587 ha->fw_dump_skip_size += entry_hdr->entry_capture_size;
2588 }
2589
2590 /* ISP83xx functions to process new minidump entries... */
qla83xx_minidump_process_pollrd(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2591 static uint32_t qla83xx_minidump_process_pollrd(struct scsi_qla_host *ha,
2592 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2593 uint32_t **d_ptr)
2594 {
2595 uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2596 uint16_t s_stride, i;
2597 uint32_t *data_ptr = *d_ptr;
2598 uint32_t rval = QLA_SUCCESS;
2599 struct qla83xx_minidump_entry_pollrd *pollrd_hdr;
2600
2601 pollrd_hdr = (struct qla83xx_minidump_entry_pollrd *)entry_hdr;
2602 s_addr = le32_to_cpu(pollrd_hdr->select_addr);
2603 r_addr = le32_to_cpu(pollrd_hdr->read_addr);
2604 s_value = le32_to_cpu(pollrd_hdr->select_value);
2605 s_stride = le32_to_cpu(pollrd_hdr->select_value_stride);
2606
2607 poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2608 poll_mask = le32_to_cpu(pollrd_hdr->poll_mask);
2609
2610 for (i = 0; i < le32_to_cpu(pollrd_hdr->op_count); i++) {
2611 ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2612 poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2613 while (1) {
2614 ha->isp_ops->rd_reg_indirect(ha, s_addr, &r_value);
2615
2616 if ((r_value & poll_mask) != 0) {
2617 break;
2618 } else {
2619 msleep(1);
2620 if (--poll_wait == 0) {
2621 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2622 __func__);
2623 rval = QLA_ERROR;
2624 goto exit_process_pollrd;
2625 }
2626 }
2627 }
2628 ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2629 *data_ptr++ = cpu_to_le32(s_value);
2630 *data_ptr++ = cpu_to_le32(r_value);
2631 s_value += s_stride;
2632 }
2633
2634 *d_ptr = data_ptr;
2635
2636 exit_process_pollrd:
2637 return rval;
2638 }
2639
qla4_84xx_minidump_process_rddfe(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2640 static uint32_t qla4_84xx_minidump_process_rddfe(struct scsi_qla_host *ha,
2641 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2642 uint32_t **d_ptr)
2643 {
2644 int loop_cnt;
2645 uint32_t addr1, addr2, value, data, temp, wrval;
2646 uint8_t stride, stride2;
2647 uint16_t count;
2648 uint32_t poll, mask, data_size, modify_mask;
2649 uint32_t wait_count = 0;
2650 uint32_t *data_ptr = *d_ptr;
2651 struct qla8044_minidump_entry_rddfe *rddfe;
2652 uint32_t rval = QLA_SUCCESS;
2653
2654 rddfe = (struct qla8044_minidump_entry_rddfe *)entry_hdr;
2655 addr1 = le32_to_cpu(rddfe->addr_1);
2656 value = le32_to_cpu(rddfe->value);
2657 stride = le32_to_cpu(rddfe->stride);
2658 stride2 = le32_to_cpu(rddfe->stride2);
2659 count = le32_to_cpu(rddfe->count);
2660
2661 poll = le32_to_cpu(rddfe->poll);
2662 mask = le32_to_cpu(rddfe->mask);
2663 modify_mask = le32_to_cpu(rddfe->modify_mask);
2664 data_size = le32_to_cpu(rddfe->data_size);
2665
2666 addr2 = addr1 + stride;
2667
2668 for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
2669 ha->isp_ops->wr_reg_indirect(ha, addr1, (0x40000000 | value));
2670
2671 wait_count = 0;
2672 while (wait_count < poll) {
2673 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2674 if ((temp & mask) != 0)
2675 break;
2676 wait_count++;
2677 }
2678
2679 if (wait_count == poll) {
2680 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2681 rval = QLA_ERROR;
2682 goto exit_process_rddfe;
2683 } else {
2684 ha->isp_ops->rd_reg_indirect(ha, addr2, &temp);
2685 temp = temp & modify_mask;
2686 temp = (temp | ((loop_cnt << 16) | loop_cnt));
2687 wrval = ((temp << 16) | temp);
2688
2689 ha->isp_ops->wr_reg_indirect(ha, addr2, wrval);
2690 ha->isp_ops->wr_reg_indirect(ha, addr1, value);
2691
2692 wait_count = 0;
2693 while (wait_count < poll) {
2694 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2695 if ((temp & mask) != 0)
2696 break;
2697 wait_count++;
2698 }
2699 if (wait_count == poll) {
2700 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2701 __func__);
2702 rval = QLA_ERROR;
2703 goto exit_process_rddfe;
2704 }
2705
2706 ha->isp_ops->wr_reg_indirect(ha, addr1,
2707 ((0x40000000 | value) +
2708 stride2));
2709 wait_count = 0;
2710 while (wait_count < poll) {
2711 ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2712 if ((temp & mask) != 0)
2713 break;
2714 wait_count++;
2715 }
2716
2717 if (wait_count == poll) {
2718 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2719 __func__);
2720 rval = QLA_ERROR;
2721 goto exit_process_rddfe;
2722 }
2723
2724 ha->isp_ops->rd_reg_indirect(ha, addr2, &data);
2725
2726 *data_ptr++ = cpu_to_le32(wrval);
2727 *data_ptr++ = cpu_to_le32(data);
2728 }
2729 }
2730
2731 *d_ptr = data_ptr;
2732 exit_process_rddfe:
2733 return rval;
2734 }
2735
qla4_84xx_minidump_process_rdmdio(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2736 static uint32_t qla4_84xx_minidump_process_rdmdio(struct scsi_qla_host *ha,
2737 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2738 uint32_t **d_ptr)
2739 {
2740 int rval = QLA_SUCCESS;
2741 uint32_t addr1, addr2, value1, value2, data, selval;
2742 uint8_t stride1, stride2;
2743 uint32_t addr3, addr4, addr5, addr6, addr7;
2744 uint16_t count, loop_cnt;
2745 uint32_t poll, mask;
2746 uint32_t *data_ptr = *d_ptr;
2747 struct qla8044_minidump_entry_rdmdio *rdmdio;
2748
2749 rdmdio = (struct qla8044_minidump_entry_rdmdio *)entry_hdr;
2750 addr1 = le32_to_cpu(rdmdio->addr_1);
2751 addr2 = le32_to_cpu(rdmdio->addr_2);
2752 value1 = le32_to_cpu(rdmdio->value_1);
2753 stride1 = le32_to_cpu(rdmdio->stride_1);
2754 stride2 = le32_to_cpu(rdmdio->stride_2);
2755 count = le32_to_cpu(rdmdio->count);
2756
2757 poll = le32_to_cpu(rdmdio->poll);
2758 mask = le32_to_cpu(rdmdio->mask);
2759 value2 = le32_to_cpu(rdmdio->value_2);
2760
2761 addr3 = addr1 + stride1;
2762
2763 for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
2764 rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2765 addr3, mask);
2766 if (rval)
2767 goto exit_process_rdmdio;
2768
2769 addr4 = addr2 - stride1;
2770 rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr4,
2771 value2);
2772 if (rval)
2773 goto exit_process_rdmdio;
2774
2775 addr5 = addr2 - (2 * stride1);
2776 rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr5,
2777 value1);
2778 if (rval)
2779 goto exit_process_rdmdio;
2780
2781 addr6 = addr2 - (3 * stride1);
2782 rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask,
2783 addr6, 0x2);
2784 if (rval)
2785 goto exit_process_rdmdio;
2786
2787 rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2788 addr3, mask);
2789 if (rval)
2790 goto exit_process_rdmdio;
2791
2792 addr7 = addr2 - (4 * stride1);
2793 rval = ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3,
2794 mask, addr7, &data);
2795 if (rval)
2796 goto exit_process_rdmdio;
2797
2798 selval = (value2 << 18) | (value1 << 2) | 2;
2799
2800 stride2 = le32_to_cpu(rdmdio->stride_2);
2801 *data_ptr++ = cpu_to_le32(selval);
2802 *data_ptr++ = cpu_to_le32(data);
2803
2804 value1 = value1 + stride2;
2805 *d_ptr = data_ptr;
2806 }
2807
2808 exit_process_rdmdio:
2809 return rval;
2810 }
2811
qla4_84xx_minidump_process_pollwr(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2812 static uint32_t qla4_84xx_minidump_process_pollwr(struct scsi_qla_host *ha,
2813 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2814 uint32_t **d_ptr)
2815 {
2816 uint32_t addr1, addr2, value1, value2, poll, mask, r_value;
2817 struct qla8044_minidump_entry_pollwr *pollwr_hdr;
2818 uint32_t wait_count = 0;
2819 uint32_t rval = QLA_SUCCESS;
2820
2821 pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
2822 addr1 = le32_to_cpu(pollwr_hdr->addr_1);
2823 addr2 = le32_to_cpu(pollwr_hdr->addr_2);
2824 value1 = le32_to_cpu(pollwr_hdr->value_1);
2825 value2 = le32_to_cpu(pollwr_hdr->value_2);
2826
2827 poll = le32_to_cpu(pollwr_hdr->poll);
2828 mask = le32_to_cpu(pollwr_hdr->mask);
2829
2830 while (wait_count < poll) {
2831 ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2832
2833 if ((r_value & poll) != 0)
2834 break;
2835
2836 wait_count++;
2837 }
2838
2839 if (wait_count == poll) {
2840 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2841 rval = QLA_ERROR;
2842 goto exit_process_pollwr;
2843 }
2844
2845 ha->isp_ops->wr_reg_indirect(ha, addr2, value2);
2846 ha->isp_ops->wr_reg_indirect(ha, addr1, value1);
2847
2848 wait_count = 0;
2849 while (wait_count < poll) {
2850 ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2851
2852 if ((r_value & poll) != 0)
2853 break;
2854 wait_count++;
2855 }
2856
2857 exit_process_pollwr:
2858 return rval;
2859 }
2860
qla83xx_minidump_process_rdmux2(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2861 static void qla83xx_minidump_process_rdmux2(struct scsi_qla_host *ha,
2862 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2863 uint32_t **d_ptr)
2864 {
2865 uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2866 uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2867 struct qla83xx_minidump_entry_rdmux2 *rdmux2_hdr;
2868 uint32_t *data_ptr = *d_ptr;
2869
2870 rdmux2_hdr = (struct qla83xx_minidump_entry_rdmux2 *)entry_hdr;
2871 sel_val1 = le32_to_cpu(rdmux2_hdr->select_value_1);
2872 sel_val2 = le32_to_cpu(rdmux2_hdr->select_value_2);
2873 sel_addr1 = le32_to_cpu(rdmux2_hdr->select_addr_1);
2874 sel_addr2 = le32_to_cpu(rdmux2_hdr->select_addr_2);
2875 sel_val_mask = le32_to_cpu(rdmux2_hdr->select_value_mask);
2876 read_addr = le32_to_cpu(rdmux2_hdr->read_addr);
2877
2878 for (i = 0; i < rdmux2_hdr->op_count; i++) {
2879 ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val1);
2880 t_sel_val = sel_val1 & sel_val_mask;
2881 *data_ptr++ = cpu_to_le32(t_sel_val);
2882
2883 ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2884 ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2885
2886 *data_ptr++ = cpu_to_le32(data);
2887
2888 ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val2);
2889 t_sel_val = sel_val2 & sel_val_mask;
2890 *data_ptr++ = cpu_to_le32(t_sel_val);
2891
2892 ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2893 ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2894
2895 *data_ptr++ = cpu_to_le32(data);
2896
2897 sel_val1 += rdmux2_hdr->select_value_stride;
2898 sel_val2 += rdmux2_hdr->select_value_stride;
2899 }
2900
2901 *d_ptr = data_ptr;
2902 }
2903
qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2904 static uint32_t qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host *ha,
2905 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2906 uint32_t **d_ptr)
2907 {
2908 uint32_t poll_wait, poll_mask, r_value, data;
2909 uint32_t addr_1, addr_2, value_1, value_2;
2910 uint32_t *data_ptr = *d_ptr;
2911 uint32_t rval = QLA_SUCCESS;
2912 struct qla83xx_minidump_entry_pollrdmwr *poll_hdr;
2913
2914 poll_hdr = (struct qla83xx_minidump_entry_pollrdmwr *)entry_hdr;
2915 addr_1 = le32_to_cpu(poll_hdr->addr_1);
2916 addr_2 = le32_to_cpu(poll_hdr->addr_2);
2917 value_1 = le32_to_cpu(poll_hdr->value_1);
2918 value_2 = le32_to_cpu(poll_hdr->value_2);
2919 poll_mask = le32_to_cpu(poll_hdr->poll_mask);
2920
2921 ha->isp_ops->wr_reg_indirect(ha, addr_1, value_1);
2922
2923 poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2924 while (1) {
2925 ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2926
2927 if ((r_value & poll_mask) != 0) {
2928 break;
2929 } else {
2930 msleep(1);
2931 if (--poll_wait == 0) {
2932 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_1\n",
2933 __func__);
2934 rval = QLA_ERROR;
2935 goto exit_process_pollrdmwr;
2936 }
2937 }
2938 }
2939
2940 ha->isp_ops->rd_reg_indirect(ha, addr_2, &data);
2941 data &= le32_to_cpu(poll_hdr->modify_mask);
2942 ha->isp_ops->wr_reg_indirect(ha, addr_2, data);
2943 ha->isp_ops->wr_reg_indirect(ha, addr_1, value_2);
2944
2945 poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2946 while (1) {
2947 ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2948
2949 if ((r_value & poll_mask) != 0) {
2950 break;
2951 } else {
2952 msleep(1);
2953 if (--poll_wait == 0) {
2954 ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_2\n",
2955 __func__);
2956 rval = QLA_ERROR;
2957 goto exit_process_pollrdmwr;
2958 }
2959 }
2960 }
2961
2962 *data_ptr++ = cpu_to_le32(addr_2);
2963 *data_ptr++ = cpu_to_le32(data);
2964 *d_ptr = data_ptr;
2965
2966 exit_process_pollrdmwr:
2967 return rval;
2968 }
2969
qla4_83xx_minidump_process_rdrom(struct scsi_qla_host * ha,struct qla8xxx_minidump_entry_hdr * entry_hdr,uint32_t ** d_ptr)2970 static uint32_t qla4_83xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2971 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2972 uint32_t **d_ptr)
2973 {
2974 uint32_t fl_addr, u32_count, rval;
2975 struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2976 uint32_t *data_ptr = *d_ptr;
2977
2978 rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2979 fl_addr = le32_to_cpu(rom_hdr->read_addr);
2980 u32_count = le32_to_cpu(rom_hdr->read_data_size)/sizeof(uint32_t);
2981
2982 DEBUG2(ql4_printk(KERN_INFO, ha, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2983 __func__, fl_addr, u32_count));
2984
2985 rval = qla4_83xx_lockless_flash_read_u32(ha, fl_addr,
2986 (u8 *)(data_ptr), u32_count);
2987
2988 if (rval == QLA_ERROR) {
2989 ql4_printk(KERN_ERR, ha, "%s: Flash Read Error,Count=%d\n",
2990 __func__, u32_count);
2991 goto exit_process_rdrom;
2992 }
2993
2994 data_ptr += u32_count;
2995 *d_ptr = data_ptr;
2996
2997 exit_process_rdrom:
2998 return rval;
2999 }
3000
3001 /**
3002 * qla4_8xxx_collect_md_data - Retrieve firmware minidump data.
3003 * @ha: pointer to adapter structure
3004 **/
qla4_8xxx_collect_md_data(struct scsi_qla_host * ha)3005 static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
3006 {
3007 int num_entry_hdr = 0;
3008 struct qla8xxx_minidump_entry_hdr *entry_hdr;
3009 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
3010 uint32_t *data_ptr;
3011 uint32_t data_collected = 0;
3012 int i, rval = QLA_ERROR;
3013 uint64_t now;
3014 uint32_t timestamp;
3015
3016 ha->fw_dump_skip_size = 0;
3017 if (!ha->fw_dump) {
3018 ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
3019 __func__, ha->host_no);
3020 return rval;
3021 }
3022
3023 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
3024 ha->fw_dump_tmplt_hdr;
3025 data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
3026 ha->fw_dump_tmplt_size);
3027 data_collected += ha->fw_dump_tmplt_size;
3028
3029 num_entry_hdr = tmplt_hdr->num_of_entries;
3030 ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
3031 __func__, data_ptr);
3032 ql4_printk(KERN_INFO, ha,
3033 "[%s]: no of entry headers in Template: 0x%x\n",
3034 __func__, num_entry_hdr);
3035 ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
3036 __func__, ha->fw_dump_capture_mask);
3037 ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
3038 __func__, ha->fw_dump_size, ha->fw_dump_size);
3039
3040 /* Update current timestamp before taking dump */
3041 now = get_jiffies_64();
3042 timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3043 tmplt_hdr->driver_timestamp = timestamp;
3044
3045 entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3046 (((uint8_t *)ha->fw_dump_tmplt_hdr) +
3047 tmplt_hdr->first_entry_offset);
3048
3049 if (is_qla8032(ha) || is_qla8042(ha))
3050 tmplt_hdr->saved_state_array[QLA83XX_SS_OCM_WNDREG_INDEX] =
3051 tmplt_hdr->ocm_window_reg[ha->func_num];
3052
3053 /* Walk through the entry headers - validate/perform required action */
3054 for (i = 0; i < num_entry_hdr; i++) {
3055 if (data_collected > ha->fw_dump_size) {
3056 ql4_printk(KERN_INFO, ha,
3057 "Data collected: [0x%x], Total Dump size: [0x%x]\n",
3058 data_collected, ha->fw_dump_size);
3059 return rval;
3060 }
3061
3062 if (!(entry_hdr->d_ctrl.entry_capture_mask &
3063 ha->fw_dump_capture_mask)) {
3064 entry_hdr->d_ctrl.driver_flags |=
3065 QLA8XXX_DBG_SKIPPED_FLAG;
3066 goto skip_nxt_entry;
3067 }
3068
3069 DEBUG2(ql4_printk(KERN_INFO, ha,
3070 "Data collected: [0x%x], Dump size left:[0x%x]\n",
3071 data_collected,
3072 (ha->fw_dump_size - data_collected)));
3073
3074 /* Decode the entry type and take required action to capture
3075 * debug data
3076 */
3077 switch (entry_hdr->entry_type) {
3078 case QLA8XXX_RDEND:
3079 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3080 break;
3081 case QLA8XXX_CNTRL:
3082 rval = qla4_8xxx_minidump_process_control(ha,
3083 entry_hdr);
3084 if (rval != QLA_SUCCESS) {
3085 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3086 goto md_failed;
3087 }
3088 break;
3089 case QLA8XXX_RDCRB:
3090 qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
3091 &data_ptr);
3092 break;
3093 case QLA8XXX_RDMEM:
3094 rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
3095 &data_ptr);
3096 if (rval != QLA_SUCCESS) {
3097 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3098 goto md_failed;
3099 }
3100 break;
3101 case QLA8XXX_BOARD:
3102 case QLA8XXX_RDROM:
3103 if (is_qla8022(ha)) {
3104 qla4_82xx_minidump_process_rdrom(ha, entry_hdr,
3105 &data_ptr);
3106 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3107 rval = qla4_83xx_minidump_process_rdrom(ha,
3108 entry_hdr,
3109 &data_ptr);
3110 if (rval != QLA_SUCCESS)
3111 qla4_8xxx_mark_entry_skipped(ha,
3112 entry_hdr,
3113 i);
3114 }
3115 break;
3116 case QLA8XXX_L2DTG:
3117 case QLA8XXX_L2ITG:
3118 case QLA8XXX_L2DAT:
3119 case QLA8XXX_L2INS:
3120 rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
3121 &data_ptr);
3122 if (rval != QLA_SUCCESS) {
3123 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3124 goto md_failed;
3125 }
3126 break;
3127 case QLA8XXX_L1DTG:
3128 case QLA8XXX_L1ITG:
3129 case QLA8XXX_L1DAT:
3130 case QLA8XXX_L1INS:
3131 qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
3132 &data_ptr);
3133 break;
3134 case QLA8XXX_RDOCM:
3135 qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
3136 &data_ptr);
3137 break;
3138 case QLA8XXX_RDMUX:
3139 qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
3140 &data_ptr);
3141 break;
3142 case QLA8XXX_QUEUE:
3143 qla4_8xxx_minidump_process_queue(ha, entry_hdr,
3144 &data_ptr);
3145 break;
3146 case QLA83XX_POLLRD:
3147 if (is_qla8022(ha)) {
3148 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3149 break;
3150 }
3151 rval = qla83xx_minidump_process_pollrd(ha, entry_hdr,
3152 &data_ptr);
3153 if (rval != QLA_SUCCESS)
3154 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3155 break;
3156 case QLA83XX_RDMUX2:
3157 if (is_qla8022(ha)) {
3158 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3159 break;
3160 }
3161 qla83xx_minidump_process_rdmux2(ha, entry_hdr,
3162 &data_ptr);
3163 break;
3164 case QLA83XX_POLLRDMWR:
3165 if (is_qla8022(ha)) {
3166 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3167 break;
3168 }
3169 rval = qla83xx_minidump_process_pollrdmwr(ha, entry_hdr,
3170 &data_ptr);
3171 if (rval != QLA_SUCCESS)
3172 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3173 break;
3174 case QLA8044_RDDFE:
3175 rval = qla4_84xx_minidump_process_rddfe(ha, entry_hdr,
3176 &data_ptr);
3177 if (rval != QLA_SUCCESS)
3178 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3179 break;
3180 case QLA8044_RDMDIO:
3181 rval = qla4_84xx_minidump_process_rdmdio(ha, entry_hdr,
3182 &data_ptr);
3183 if (rval != QLA_SUCCESS)
3184 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3185 break;
3186 case QLA8044_POLLWR:
3187 rval = qla4_84xx_minidump_process_pollwr(ha, entry_hdr,
3188 &data_ptr);
3189 if (rval != QLA_SUCCESS)
3190 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3191 break;
3192 case QLA8XXX_RDNOP:
3193 default:
3194 qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3195 break;
3196 }
3197
3198 data_collected = (uint8_t *)data_ptr - (uint8_t *)ha->fw_dump;
3199 skip_nxt_entry:
3200 /* next entry in the template */
3201 entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3202 (((uint8_t *)entry_hdr) +
3203 entry_hdr->entry_size);
3204 }
3205
3206 if ((data_collected + ha->fw_dump_skip_size) != ha->fw_dump_size) {
3207 ql4_printk(KERN_INFO, ha,
3208 "Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
3209 data_collected, ha->fw_dump_size);
3210 rval = QLA_ERROR;
3211 goto md_failed;
3212 }
3213
3214 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
3215 __func__, i));
3216 md_failed:
3217 return rval;
3218 }
3219
3220 /**
3221 * qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
3222 * @ha: pointer to adapter structure
3223 **/
qla4_8xxx_uevent_emit(struct scsi_qla_host * ha,u32 code)3224 static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
3225 {
3226 char event_string[40];
3227 char *envp[] = { event_string, NULL };
3228
3229 switch (code) {
3230 case QL4_UEVENT_CODE_FW_DUMP:
3231 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3232 ha->host_no);
3233 break;
3234 default:
3235 /*do nothing*/
3236 break;
3237 }
3238
3239 kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
3240 }
3241
qla4_8xxx_get_minidump(struct scsi_qla_host * ha)3242 void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
3243 {
3244 if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
3245 !test_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
3246 if (!qla4_8xxx_collect_md_data(ha)) {
3247 qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
3248 set_bit(AF_82XX_FW_DUMPED, &ha->flags);
3249 } else {
3250 ql4_printk(KERN_INFO, ha, "%s: Unable to collect minidump\n",
3251 __func__);
3252 }
3253 }
3254 }
3255
3256 /**
3257 * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
3258 * @ha: pointer to adapter structure
3259 *
3260 * Note: IDC lock must be held upon entry
3261 **/
qla4_8xxx_device_bootstrap(struct scsi_qla_host * ha)3262 int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
3263 {
3264 int rval = QLA_ERROR;
3265 int i;
3266 uint32_t old_count, count;
3267 int need_reset = 0;
3268
3269 need_reset = ha->isp_ops->need_reset(ha);
3270
3271 if (need_reset) {
3272 /* We are trying to perform a recovery here. */
3273 if (test_bit(AF_FW_RECOVERY, &ha->flags))
3274 ha->isp_ops->rom_lock_recovery(ha);
3275 } else {
3276 old_count = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
3277 for (i = 0; i < 10; i++) {
3278 msleep(200);
3279 count = qla4_8xxx_rd_direct(ha,
3280 QLA8XXX_PEG_ALIVE_COUNTER);
3281 if (count != old_count) {
3282 rval = QLA_SUCCESS;
3283 goto dev_ready;
3284 }
3285 }
3286 ha->isp_ops->rom_lock_recovery(ha);
3287 }
3288
3289 /* set to DEV_INITIALIZING */
3290 ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
3291 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3292 QLA8XXX_DEV_INITIALIZING);
3293
3294 ha->isp_ops->idc_unlock(ha);
3295
3296 if (is_qla8022(ha))
3297 qla4_8xxx_get_minidump(ha);
3298
3299 rval = ha->isp_ops->restart_firmware(ha);
3300 ha->isp_ops->idc_lock(ha);
3301
3302 if (rval != QLA_SUCCESS) {
3303 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3304 qla4_8xxx_clear_drv_active(ha);
3305 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3306 QLA8XXX_DEV_FAILED);
3307 return rval;
3308 }
3309
3310 dev_ready:
3311 ql4_printk(KERN_INFO, ha, "HW State: READY\n");
3312 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
3313
3314 return rval;
3315 }
3316
3317 /**
3318 * qla4_82xx_need_reset_handler - Code to start reset sequence
3319 * @ha: pointer to adapter structure
3320 *
3321 * Note: IDC lock must be held upon entry
3322 **/
3323 static void
qla4_82xx_need_reset_handler(struct scsi_qla_host * ha)3324 qla4_82xx_need_reset_handler(struct scsi_qla_host *ha)
3325 {
3326 uint32_t dev_state, drv_state, drv_active;
3327 uint32_t active_mask = 0xFFFFFFFF;
3328 unsigned long reset_timeout;
3329
3330 ql4_printk(KERN_INFO, ha,
3331 "Performing ISP error recovery\n");
3332
3333 if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
3334 qla4_82xx_idc_unlock(ha);
3335 ha->isp_ops->disable_intrs(ha);
3336 qla4_82xx_idc_lock(ha);
3337 }
3338
3339 if (!test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3340 DEBUG2(ql4_printk(KERN_INFO, ha,
3341 "%s(%ld): reset acknowledged\n",
3342 __func__, ha->host_no));
3343 qla4_8xxx_set_rst_ready(ha);
3344 } else {
3345 active_mask = (~(1 << (ha->func_num * 4)));
3346 }
3347
3348 /* wait for 10 seconds for reset ack from all functions */
3349 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3350
3351 drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3352 drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3353
3354 ql4_printk(KERN_INFO, ha,
3355 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3356 __func__, ha->host_no, drv_state, drv_active);
3357
3358 while (drv_state != (drv_active & active_mask)) {
3359 if (time_after_eq(jiffies, reset_timeout)) {
3360 ql4_printk(KERN_INFO, ha,
3361 "%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
3362 DRIVER_NAME, drv_state, drv_active);
3363 break;
3364 }
3365
3366 /*
3367 * When reset_owner times out, check which functions
3368 * acked/did not ack
3369 */
3370 if (test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3371 ql4_printk(KERN_INFO, ha,
3372 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3373 __func__, ha->host_no, drv_state,
3374 drv_active);
3375 }
3376 qla4_82xx_idc_unlock(ha);
3377 msleep(1000);
3378 qla4_82xx_idc_lock(ha);
3379
3380 drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3381 drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3382 }
3383
3384 /* Clear RESET OWNER as we are not going to use it any further */
3385 clear_bit(AF_8XXX_RST_OWNER, &ha->flags);
3386
3387 dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3388 ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
3389 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
3390
3391 /* Force to DEV_COLD unless someone else is starting a reset */
3392 if (dev_state != QLA8XXX_DEV_INITIALIZING) {
3393 ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
3394 qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3395 qla4_8xxx_set_rst_ready(ha);
3396 }
3397 }
3398
3399 /**
3400 * qla4_8xxx_need_qsnt_handler - Code to start qsnt
3401 * @ha: pointer to adapter structure
3402 **/
3403 void
qla4_8xxx_need_qsnt_handler(struct scsi_qla_host * ha)3404 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
3405 {
3406 ha->isp_ops->idc_lock(ha);
3407 qla4_8xxx_set_qsnt_ready(ha);
3408 ha->isp_ops->idc_unlock(ha);
3409 }
3410
qla4_82xx_set_idc_ver(struct scsi_qla_host * ha)3411 static void qla4_82xx_set_idc_ver(struct scsi_qla_host *ha)
3412 {
3413 int idc_ver;
3414 uint32_t drv_active;
3415
3416 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3417 if (drv_active == (1 << (ha->func_num * 4))) {
3418 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION,
3419 QLA82XX_IDC_VERSION);
3420 ql4_printk(KERN_INFO, ha,
3421 "%s: IDC version updated to %d\n", __func__,
3422 QLA82XX_IDC_VERSION);
3423 } else {
3424 idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3425 if (QLA82XX_IDC_VERSION != idc_ver) {
3426 ql4_printk(KERN_INFO, ha,
3427 "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3428 __func__, QLA82XX_IDC_VERSION, idc_ver);
3429 }
3430 }
3431 }
3432
qla4_83xx_set_idc_ver(struct scsi_qla_host * ha)3433 static int qla4_83xx_set_idc_ver(struct scsi_qla_host *ha)
3434 {
3435 int idc_ver;
3436 uint32_t drv_active;
3437 int rval = QLA_SUCCESS;
3438
3439 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3440 if (drv_active == (1 << ha->func_num)) {
3441 idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3442 idc_ver &= (~0xFF);
3443 idc_ver |= QLA83XX_IDC_VER_MAJ_VALUE;
3444 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION, idc_ver);
3445 ql4_printk(KERN_INFO, ha,
3446 "%s: IDC version updated to %d\n", __func__,
3447 idc_ver);
3448 } else {
3449 idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3450 idc_ver &= 0xFF;
3451 if (QLA83XX_IDC_VER_MAJ_VALUE != idc_ver) {
3452 ql4_printk(KERN_INFO, ha,
3453 "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3454 __func__, QLA83XX_IDC_VER_MAJ_VALUE,
3455 idc_ver);
3456 rval = QLA_ERROR;
3457 goto exit_set_idc_ver;
3458 }
3459 }
3460
3461 /* Update IDC_MINOR_VERSION */
3462 idc_ver = qla4_83xx_rd_reg(ha, QLA83XX_CRB_IDC_VER_MINOR);
3463 idc_ver &= ~(0x03 << (ha->func_num * 2));
3464 idc_ver |= (QLA83XX_IDC_VER_MIN_VALUE << (ha->func_num * 2));
3465 qla4_83xx_wr_reg(ha, QLA83XX_CRB_IDC_VER_MINOR, idc_ver);
3466
3467 exit_set_idc_ver:
3468 return rval;
3469 }
3470
qla4_8xxx_update_idc_reg(struct scsi_qla_host * ha)3471 int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha)
3472 {
3473 uint32_t drv_active;
3474 int rval = QLA_SUCCESS;
3475
3476 if (test_bit(AF_INIT_DONE, &ha->flags))
3477 goto exit_update_idc_reg;
3478
3479 ha->isp_ops->idc_lock(ha);
3480 qla4_8xxx_set_drv_active(ha);
3481
3482 /*
3483 * If we are the first driver to load and
3484 * ql4xdontresethba is not set, clear IDC_CTRL BIT0.
3485 */
3486 if (is_qla8032(ha) || is_qla8042(ha)) {
3487 drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3488 if ((drv_active == (1 << ha->func_num)) && !ql4xdontresethba)
3489 qla4_83xx_clear_idc_dontreset(ha);
3490 }
3491
3492 if (is_qla8022(ha)) {
3493 qla4_82xx_set_idc_ver(ha);
3494 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3495 rval = qla4_83xx_set_idc_ver(ha);
3496 if (rval == QLA_ERROR)
3497 qla4_8xxx_clear_drv_active(ha);
3498 }
3499
3500 ha->isp_ops->idc_unlock(ha);
3501
3502 exit_update_idc_reg:
3503 return rval;
3504 }
3505
3506 /**
3507 * qla4_8xxx_device_state_handler - Adapter state machine
3508 * @ha: pointer to host adapter structure.
3509 *
3510 * Note: IDC lock must be UNLOCKED upon entry
3511 **/
qla4_8xxx_device_state_handler(struct scsi_qla_host * ha)3512 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
3513 {
3514 uint32_t dev_state;
3515 int rval = QLA_SUCCESS;
3516 unsigned long dev_init_timeout;
3517
3518 rval = qla4_8xxx_update_idc_reg(ha);
3519 if (rval == QLA_ERROR)
3520 goto exit_state_handler;
3521
3522 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3523 DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3524 dev_state, dev_state < MAX_STATES ?
3525 qdev_state[dev_state] : "Unknown"));
3526
3527 /* wait for 30 seconds for device to go ready */
3528 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3529
3530 ha->isp_ops->idc_lock(ha);
3531 while (1) {
3532
3533 if (time_after_eq(jiffies, dev_init_timeout)) {
3534 ql4_printk(KERN_WARNING, ha,
3535 "%s: Device Init Failed 0x%x = %s\n",
3536 DRIVER_NAME,
3537 dev_state, dev_state < MAX_STATES ?
3538 qdev_state[dev_state] : "Unknown");
3539 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3540 QLA8XXX_DEV_FAILED);
3541 }
3542
3543 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3544 ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3545 dev_state, dev_state < MAX_STATES ?
3546 qdev_state[dev_state] : "Unknown");
3547
3548 /* NOTE: Make sure idc unlocked upon exit of switch statement */
3549 switch (dev_state) {
3550 case QLA8XXX_DEV_READY:
3551 goto exit;
3552 case QLA8XXX_DEV_COLD:
3553 rval = qla4_8xxx_device_bootstrap(ha);
3554 goto exit;
3555 case QLA8XXX_DEV_INITIALIZING:
3556 ha->isp_ops->idc_unlock(ha);
3557 msleep(1000);
3558 ha->isp_ops->idc_lock(ha);
3559 break;
3560 case QLA8XXX_DEV_NEED_RESET:
3561 /*
3562 * For ISP8324 and ISP8042, if NEED_RESET is set by any
3563 * driver, it should be honored, irrespective of
3564 * IDC_CTRL DONTRESET_BIT0
3565 */
3566 if (is_qla8032(ha) || is_qla8042(ha)) {
3567 qla4_83xx_need_reset_handler(ha);
3568 } else if (is_qla8022(ha)) {
3569 if (!ql4xdontresethba) {
3570 qla4_82xx_need_reset_handler(ha);
3571 /* Update timeout value after need
3572 * reset handler */
3573 dev_init_timeout = jiffies +
3574 (ha->nx_dev_init_timeout * HZ);
3575 } else {
3576 ha->isp_ops->idc_unlock(ha);
3577 msleep(1000);
3578 ha->isp_ops->idc_lock(ha);
3579 }
3580 }
3581 break;
3582 case QLA8XXX_DEV_NEED_QUIESCENT:
3583 /* idc locked/unlocked in handler */
3584 qla4_8xxx_need_qsnt_handler(ha);
3585 break;
3586 case QLA8XXX_DEV_QUIESCENT:
3587 ha->isp_ops->idc_unlock(ha);
3588 msleep(1000);
3589 ha->isp_ops->idc_lock(ha);
3590 break;
3591 case QLA8XXX_DEV_FAILED:
3592 ha->isp_ops->idc_unlock(ha);
3593 qla4xxx_dead_adapter_cleanup(ha);
3594 rval = QLA_ERROR;
3595 ha->isp_ops->idc_lock(ha);
3596 goto exit;
3597 default:
3598 ha->isp_ops->idc_unlock(ha);
3599 qla4xxx_dead_adapter_cleanup(ha);
3600 rval = QLA_ERROR;
3601 ha->isp_ops->idc_lock(ha);
3602 goto exit;
3603 }
3604 }
3605 exit:
3606 ha->isp_ops->idc_unlock(ha);
3607 exit_state_handler:
3608 return rval;
3609 }
3610
qla4_8xxx_load_risc(struct scsi_qla_host * ha)3611 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
3612 {
3613 int retval;
3614
3615 /* clear the interrupt */
3616 if (is_qla8032(ha) || is_qla8042(ha)) {
3617 writel(0, &ha->qla4_83xx_reg->risc_intr);
3618 readl(&ha->qla4_83xx_reg->risc_intr);
3619 } else if (is_qla8022(ha)) {
3620 writel(0, &ha->qla4_82xx_reg->host_int);
3621 readl(&ha->qla4_82xx_reg->host_int);
3622 }
3623
3624 retval = qla4_8xxx_device_state_handler(ha);
3625
3626 /* Initialize request and response queues. */
3627 if (retval == QLA_SUCCESS)
3628 qla4xxx_init_rings(ha);
3629
3630 if (retval == QLA_SUCCESS && !test_bit(AF_IRQ_ATTACHED, &ha->flags))
3631 retval = qla4xxx_request_irqs(ha);
3632
3633 return retval;
3634 }
3635
3636 /*****************************************************************************/
3637 /* Flash Manipulation Routines */
3638 /*****************************************************************************/
3639
3640 #define OPTROM_BURST_SIZE 0x1000
3641 #define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
3642
3643 #define FARX_DATA_FLAG BIT_31
3644 #define FARX_ACCESS_FLASH_CONF 0x7FFD0000
3645 #define FARX_ACCESS_FLASH_DATA 0x7FF00000
3646
3647 static inline uint32_t
flash_conf_addr(struct ql82xx_hw_data * hw,uint32_t faddr)3648 flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
3649 {
3650 return hw->flash_conf_off | faddr;
3651 }
3652
3653 static inline uint32_t
flash_data_addr(struct ql82xx_hw_data * hw,uint32_t faddr)3654 flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
3655 {
3656 return hw->flash_data_off | faddr;
3657 }
3658
3659 static uint32_t *
qla4_82xx_read_flash_data(struct scsi_qla_host * ha,uint32_t * dwptr,uint32_t faddr,uint32_t length)3660 qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
3661 uint32_t faddr, uint32_t length)
3662 {
3663 uint32_t i;
3664 uint32_t val;
3665 int loops = 0;
3666 while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
3667 udelay(100);
3668 cond_resched();
3669 loops++;
3670 }
3671 if (loops >= 50000) {
3672 ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
3673 return dwptr;
3674 }
3675
3676 /* Dword reads to flash. */
3677 for (i = 0; i < length/4; i++, faddr += 4) {
3678 if (qla4_82xx_do_rom_fast_read(ha, faddr, &val)) {
3679 ql4_printk(KERN_WARNING, ha,
3680 "Do ROM fast read failed\n");
3681 goto done_read;
3682 }
3683 dwptr[i] = __constant_cpu_to_le32(val);
3684 }
3685
3686 done_read:
3687 qla4_82xx_rom_unlock(ha);
3688 return dwptr;
3689 }
3690
3691 /**
3692 * Address and length are byte address
3693 **/
3694 static uint8_t *
qla4_82xx_read_optrom_data(struct scsi_qla_host * ha,uint8_t * buf,uint32_t offset,uint32_t length)3695 qla4_82xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
3696 uint32_t offset, uint32_t length)
3697 {
3698 qla4_82xx_read_flash_data(ha, (uint32_t *)buf, offset, length);
3699 return buf;
3700 }
3701
3702 static int
qla4_8xxx_find_flt_start(struct scsi_qla_host * ha,uint32_t * start)3703 qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
3704 {
3705 const char *loc, *locations[] = { "DEF", "PCI" };
3706
3707 /*
3708 * FLT-location structure resides after the last PCI region.
3709 */
3710
3711 /* Begin with sane defaults. */
3712 loc = locations[0];
3713 *start = FA_FLASH_LAYOUT_ADDR_82;
3714
3715 DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
3716 return QLA_SUCCESS;
3717 }
3718
3719 static void
qla4_8xxx_get_flt_info(struct scsi_qla_host * ha,uint32_t flt_addr)3720 qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
3721 {
3722 const char *loc, *locations[] = { "DEF", "FLT" };
3723 uint16_t *wptr;
3724 uint16_t cnt, chksum;
3725 uint32_t start, status;
3726 struct qla_flt_header *flt;
3727 struct qla_flt_region *region;
3728 struct ql82xx_hw_data *hw = &ha->hw;
3729
3730 hw->flt_region_flt = flt_addr;
3731 wptr = (uint16_t *)ha->request_ring;
3732 flt = (struct qla_flt_header *)ha->request_ring;
3733 region = (struct qla_flt_region *)&flt[1];
3734
3735 if (is_qla8022(ha)) {
3736 qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3737 flt_addr << 2, OPTROM_BURST_SIZE);
3738 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3739 status = qla4_83xx_flash_read_u32(ha, flt_addr << 2,
3740 (uint8_t *)ha->request_ring,
3741 0x400);
3742 if (status != QLA_SUCCESS)
3743 goto no_flash_data;
3744 }
3745
3746 if (*wptr == __constant_cpu_to_le16(0xffff))
3747 goto no_flash_data;
3748 if (flt->version != __constant_cpu_to_le16(1)) {
3749 DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
3750 "version=0x%x length=0x%x checksum=0x%x.\n",
3751 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3752 le16_to_cpu(flt->checksum)));
3753 goto no_flash_data;
3754 }
3755
3756 cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
3757 for (chksum = 0; cnt; cnt--)
3758 chksum += le16_to_cpu(*wptr++);
3759 if (chksum) {
3760 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
3761 "version=0x%x length=0x%x checksum=0x%x.\n",
3762 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3763 chksum));
3764 goto no_flash_data;
3765 }
3766
3767 loc = locations[1];
3768 cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
3769 for ( ; cnt; cnt--, region++) {
3770 /* Store addresses as DWORD offsets. */
3771 start = le32_to_cpu(region->start) >> 2;
3772
3773 DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
3774 "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
3775 le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
3776
3777 switch (le32_to_cpu(region->code) & 0xff) {
3778 case FLT_REG_FDT:
3779 hw->flt_region_fdt = start;
3780 break;
3781 case FLT_REG_BOOT_CODE_82:
3782 hw->flt_region_boot = start;
3783 break;
3784 case FLT_REG_FW_82:
3785 case FLT_REG_FW_82_1:
3786 hw->flt_region_fw = start;
3787 break;
3788 case FLT_REG_BOOTLOAD_82:
3789 hw->flt_region_bootload = start;
3790 break;
3791 case FLT_REG_ISCSI_PARAM:
3792 hw->flt_iscsi_param = start;
3793 break;
3794 case FLT_REG_ISCSI_CHAP:
3795 hw->flt_region_chap = start;
3796 hw->flt_chap_size = le32_to_cpu(region->size);
3797 break;
3798 case FLT_REG_ISCSI_DDB:
3799 hw->flt_region_ddb = start;
3800 hw->flt_ddb_size = le32_to_cpu(region->size);
3801 break;
3802 }
3803 }
3804 goto done;
3805
3806 no_flash_data:
3807 /* Use hardcoded defaults. */
3808 loc = locations[0];
3809
3810 hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82;
3811 hw->flt_region_boot = FA_BOOT_CODE_ADDR_82;
3812 hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
3813 hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
3814 hw->flt_region_chap = FA_FLASH_ISCSI_CHAP >> 2;
3815 hw->flt_chap_size = FA_FLASH_CHAP_SIZE;
3816 hw->flt_region_ddb = FA_FLASH_ISCSI_DDB >> 2;
3817 hw->flt_ddb_size = FA_FLASH_DDB_SIZE;
3818
3819 done:
3820 DEBUG2(ql4_printk(KERN_INFO, ha,
3821 "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",
3822 loc, hw->flt_region_flt, hw->flt_region_fdt,
3823 hw->flt_region_boot, hw->flt_region_bootload,
3824 hw->flt_region_fw, hw->flt_region_chap,
3825 hw->flt_chap_size, hw->flt_region_ddb,
3826 hw->flt_ddb_size));
3827 }
3828
3829 static void
qla4_82xx_get_fdt_info(struct scsi_qla_host * ha)3830 qla4_82xx_get_fdt_info(struct scsi_qla_host *ha)
3831 {
3832 #define FLASH_BLK_SIZE_4K 0x1000
3833 #define FLASH_BLK_SIZE_32K 0x8000
3834 #define FLASH_BLK_SIZE_64K 0x10000
3835 const char *loc, *locations[] = { "MID", "FDT" };
3836 uint16_t cnt, chksum;
3837 uint16_t *wptr;
3838 struct qla_fdt_layout *fdt;
3839 uint16_t mid = 0;
3840 uint16_t fid = 0;
3841 struct ql82xx_hw_data *hw = &ha->hw;
3842
3843 hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3844 hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
3845
3846 wptr = (uint16_t *)ha->request_ring;
3847 fdt = (struct qla_fdt_layout *)ha->request_ring;
3848 qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3849 hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
3850
3851 if (*wptr == __constant_cpu_to_le16(0xffff))
3852 goto no_flash_data;
3853
3854 if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
3855 fdt->sig[3] != 'D')
3856 goto no_flash_data;
3857
3858 for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
3859 cnt++)
3860 chksum += le16_to_cpu(*wptr++);
3861
3862 if (chksum) {
3863 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
3864 "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
3865 le16_to_cpu(fdt->version)));
3866 goto no_flash_data;
3867 }
3868
3869 loc = locations[1];
3870 mid = le16_to_cpu(fdt->man_id);
3871 fid = le16_to_cpu(fdt->id);
3872 hw->fdt_wrt_disable = fdt->wrt_disable_bits;
3873 hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
3874 hw->fdt_block_size = le32_to_cpu(fdt->block_size);
3875
3876 if (fdt->unprotect_sec_cmd) {
3877 hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
3878 fdt->unprotect_sec_cmd);
3879 hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
3880 flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
3881 flash_conf_addr(hw, 0x0336);
3882 }
3883 goto done;
3884
3885 no_flash_data:
3886 loc = locations[0];
3887 hw->fdt_block_size = FLASH_BLK_SIZE_64K;
3888 done:
3889 DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
3890 "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
3891 hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
3892 hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
3893 hw->fdt_block_size));
3894 }
3895
3896 static void
qla4_82xx_get_idc_param(struct scsi_qla_host * ha)3897 qla4_82xx_get_idc_param(struct scsi_qla_host *ha)
3898 {
3899 #define QLA82XX_IDC_PARAM_ADDR 0x003e885c
3900 uint32_t *wptr;
3901
3902 if (!is_qla8022(ha))
3903 return;
3904 wptr = (uint32_t *)ha->request_ring;
3905 qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3906 QLA82XX_IDC_PARAM_ADDR , 8);
3907
3908 if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
3909 ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
3910 ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
3911 } else {
3912 ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
3913 ha->nx_reset_timeout = le32_to_cpu(*wptr);
3914 }
3915
3916 DEBUG2(ql4_printk(KERN_DEBUG, ha,
3917 "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
3918 DEBUG2(ql4_printk(KERN_DEBUG, ha,
3919 "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
3920 return;
3921 }
3922
qla4_82xx_queue_mbox_cmd(struct scsi_qla_host * ha,uint32_t * mbx_cmd,int in_count)3923 void qla4_82xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
3924 int in_count)
3925 {
3926 int i;
3927
3928 /* Load all mailbox registers, except mailbox 0. */
3929 for (i = 1; i < in_count; i++)
3930 writel(mbx_cmd[i], &ha->qla4_82xx_reg->mailbox_in[i]);
3931
3932 /* Wakeup firmware */
3933 writel(mbx_cmd[0], &ha->qla4_82xx_reg->mailbox_in[0]);
3934 readl(&ha->qla4_82xx_reg->mailbox_in[0]);
3935 writel(HINT_MBX_INT_PENDING, &ha->qla4_82xx_reg->hint);
3936 readl(&ha->qla4_82xx_reg->hint);
3937 }
3938
qla4_82xx_process_mbox_intr(struct scsi_qla_host * ha,int out_count)3939 void qla4_82xx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
3940 {
3941 int intr_status;
3942
3943 intr_status = readl(&ha->qla4_82xx_reg->host_int);
3944 if (intr_status & ISRX_82XX_RISC_INT) {
3945 ha->mbox_status_count = out_count;
3946 intr_status = readl(&ha->qla4_82xx_reg->host_status);
3947 ha->isp_ops->interrupt_service_routine(ha, intr_status);
3948
3949 if (test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
3950 (!ha->pdev->msi_enabled && !ha->pdev->msix_enabled))
3951 qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
3952 0xfbff);
3953 }
3954 }
3955
3956 int
qla4_8xxx_get_flash_info(struct scsi_qla_host * ha)3957 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
3958 {
3959 int ret;
3960 uint32_t flt_addr;
3961
3962 ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
3963 if (ret != QLA_SUCCESS)
3964 return ret;
3965
3966 qla4_8xxx_get_flt_info(ha, flt_addr);
3967 if (is_qla8022(ha)) {
3968 qla4_82xx_get_fdt_info(ha);
3969 qla4_82xx_get_idc_param(ha);
3970 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3971 qla4_83xx_get_idc_param(ha);
3972 }
3973
3974 return QLA_SUCCESS;
3975 }
3976
3977 /**
3978 * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
3979 * @ha: pointer to host adapter structure.
3980 *
3981 * Remarks:
3982 * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
3983 * not be available after successful return. Driver must cleanup potential
3984 * outstanding I/O's after calling this funcion.
3985 **/
3986 int
qla4_8xxx_stop_firmware(struct scsi_qla_host * ha)3987 qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
3988 {
3989 int status;
3990 uint32_t mbox_cmd[MBOX_REG_COUNT];
3991 uint32_t mbox_sts[MBOX_REG_COUNT];
3992
3993 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
3994 memset(&mbox_sts, 0, sizeof(mbox_sts));
3995
3996 mbox_cmd[0] = MBOX_CMD_STOP_FW;
3997 status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
3998 &mbox_cmd[0], &mbox_sts[0]);
3999
4000 DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
4001 __func__, status));
4002 return status;
4003 }
4004
4005 /**
4006 * qla4_82xx_isp_reset - Resets ISP and aborts all outstanding commands.
4007 * @ha: pointer to host adapter structure.
4008 **/
4009 int
qla4_82xx_isp_reset(struct scsi_qla_host * ha)4010 qla4_82xx_isp_reset(struct scsi_qla_host *ha)
4011 {
4012 int rval;
4013 uint32_t dev_state;
4014
4015 qla4_82xx_idc_lock(ha);
4016 dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
4017
4018 if (dev_state == QLA8XXX_DEV_READY) {
4019 ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
4020 qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4021 QLA8XXX_DEV_NEED_RESET);
4022 set_bit(AF_8XXX_RST_OWNER, &ha->flags);
4023 } else
4024 ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
4025
4026 qla4_82xx_idc_unlock(ha);
4027
4028 rval = qla4_8xxx_device_state_handler(ha);
4029
4030 qla4_82xx_idc_lock(ha);
4031 qla4_8xxx_clear_rst_ready(ha);
4032 qla4_82xx_idc_unlock(ha);
4033
4034 if (rval == QLA_SUCCESS) {
4035 ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_82xx_isp_reset\n");
4036 clear_bit(AF_FW_RECOVERY, &ha->flags);
4037 }
4038
4039 return rval;
4040 }
4041
4042 /**
4043 * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
4044 * @ha: pointer to host adapter structure.
4045 *
4046 **/
qla4_8xxx_get_sys_info(struct scsi_qla_host * ha)4047 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
4048 {
4049 uint32_t mbox_cmd[MBOX_REG_COUNT];
4050 uint32_t mbox_sts[MBOX_REG_COUNT];
4051 struct mbx_sys_info *sys_info;
4052 dma_addr_t sys_info_dma;
4053 int status = QLA_ERROR;
4054
4055 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
4056 &sys_info_dma, GFP_KERNEL);
4057 if (sys_info == NULL) {
4058 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
4059 ha->host_no, __func__));
4060 return status;
4061 }
4062
4063 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4064 memset(&mbox_sts, 0, sizeof(mbox_sts));
4065
4066 mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
4067 mbox_cmd[1] = LSDW(sys_info_dma);
4068 mbox_cmd[2] = MSDW(sys_info_dma);
4069 mbox_cmd[4] = sizeof(*sys_info);
4070
4071 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
4072 &mbox_sts[0]) != QLA_SUCCESS) {
4073 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
4074 ha->host_no, __func__));
4075 goto exit_validate_mac82;
4076 }
4077
4078 /* Make sure we receive the minimum required data to cache internally */
4079 if (((is_qla8032(ha) || is_qla8042(ha)) ? mbox_sts[3] : mbox_sts[4]) <
4080 offsetof(struct mbx_sys_info, reserved)) {
4081 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
4082 " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
4083 goto exit_validate_mac82;
4084 }
4085
4086 /* Save M.A.C. address & serial_number */
4087 ha->port_num = sys_info->port_num;
4088 memcpy(ha->my_mac, &sys_info->mac_addr[0],
4089 min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
4090 memcpy(ha->serial_number, &sys_info->serial_number,
4091 min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
4092 memcpy(ha->model_name, &sys_info->board_id_str,
4093 min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
4094 ha->phy_port_cnt = sys_info->phys_port_cnt;
4095 ha->phy_port_num = sys_info->port_num;
4096 ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
4097
4098 DEBUG2(printk("scsi%ld: %s: mac %pM serial %s\n",
4099 ha->host_no, __func__, ha->my_mac, ha->serial_number));
4100
4101 status = QLA_SUCCESS;
4102
4103 exit_validate_mac82:
4104 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
4105 sys_info_dma);
4106 return status;
4107 }
4108
4109 /* Interrupt handling helpers. */
4110
qla4_8xxx_intr_enable(struct scsi_qla_host * ha)4111 int qla4_8xxx_intr_enable(struct scsi_qla_host *ha)
4112 {
4113 uint32_t mbox_cmd[MBOX_REG_COUNT];
4114 uint32_t mbox_sts[MBOX_REG_COUNT];
4115
4116 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4117
4118 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4119 memset(&mbox_sts, 0, sizeof(mbox_sts));
4120 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4121 mbox_cmd[1] = INTR_ENABLE;
4122 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4123 &mbox_sts[0]) != QLA_SUCCESS) {
4124 DEBUG2(ql4_printk(KERN_INFO, ha,
4125 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4126 __func__, mbox_sts[0]));
4127 return QLA_ERROR;
4128 }
4129 return QLA_SUCCESS;
4130 }
4131
qla4_8xxx_intr_disable(struct scsi_qla_host * ha)4132 int qla4_8xxx_intr_disable(struct scsi_qla_host *ha)
4133 {
4134 uint32_t mbox_cmd[MBOX_REG_COUNT];
4135 uint32_t mbox_sts[MBOX_REG_COUNT];
4136
4137 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4138
4139 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4140 memset(&mbox_sts, 0, sizeof(mbox_sts));
4141 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4142 mbox_cmd[1] = INTR_DISABLE;
4143 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4144 &mbox_sts[0]) != QLA_SUCCESS) {
4145 DEBUG2(ql4_printk(KERN_INFO, ha,
4146 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4147 __func__, mbox_sts[0]));
4148 return QLA_ERROR;
4149 }
4150
4151 return QLA_SUCCESS;
4152 }
4153
4154 void
qla4_82xx_enable_intrs(struct scsi_qla_host * ha)4155 qla4_82xx_enable_intrs(struct scsi_qla_host *ha)
4156 {
4157 qla4_8xxx_intr_enable(ha);
4158
4159 spin_lock_irq(&ha->hardware_lock);
4160 /* BIT 10 - reset */
4161 qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
4162 spin_unlock_irq(&ha->hardware_lock);
4163 set_bit(AF_INTERRUPTS_ON, &ha->flags);
4164 }
4165
4166 void
qla4_82xx_disable_intrs(struct scsi_qla_host * ha)4167 qla4_82xx_disable_intrs(struct scsi_qla_host *ha)
4168 {
4169 if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
4170 qla4_8xxx_intr_disable(ha);
4171
4172 spin_lock_irq(&ha->hardware_lock);
4173 /* BIT 10 - set */
4174 qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
4175 spin_unlock_irq(&ha->hardware_lock);
4176 }
4177
4178 int
qla4_8xxx_enable_msix(struct scsi_qla_host * ha)4179 qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
4180 {
4181 int ret;
4182
4183 ret = pci_alloc_irq_vectors(ha->pdev, QLA_MSIX_ENTRIES,
4184 QLA_MSIX_ENTRIES, PCI_IRQ_MSIX);
4185 if (ret < 0) {
4186 ql4_printk(KERN_WARNING, ha,
4187 "MSI-X: Failed to enable support -- %d/%d\n",
4188 QLA_MSIX_ENTRIES, ret);
4189 return ret;
4190 }
4191
4192 ret = request_irq(pci_irq_vector(ha->pdev, 0),
4193 qla4_8xxx_default_intr_handler, 0, "qla4xxx (default)",
4194 ha);
4195 if (ret)
4196 goto out_free_vectors;
4197
4198 ret = request_irq(pci_irq_vector(ha->pdev, 1),
4199 qla4_8xxx_msix_rsp_q, 0, "qla4xxx (rsp_q)", ha);
4200 if (ret)
4201 goto out_free_default_irq;
4202
4203 return 0;
4204
4205 out_free_default_irq:
4206 free_irq(pci_irq_vector(ha->pdev, 0), ha);
4207 out_free_vectors:
4208 pci_free_irq_vectors(ha->pdev);
4209 return ret;
4210 }
4211
qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host * ha)4212 int qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host *ha)
4213 {
4214 int status = QLA_SUCCESS;
4215
4216 /* Dont retry adapter initialization if IRQ allocation failed */
4217 if (!test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
4218 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization as IRQs are not attached\n",
4219 __func__);
4220 status = QLA_ERROR;
4221 goto exit_init_adapter_failure;
4222 }
4223
4224 /* Since interrupts are registered in start_firmware for
4225 * 8xxx, release them here if initialize_adapter fails
4226 * and retry adapter initialization */
4227 qla4xxx_free_irqs(ha);
4228
4229 exit_init_adapter_failure:
4230 return status;
4231 }
4232
