?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
initial commit with v3.6.7
[linux-3.6.7-moxart.git] / drivers / scsi / qla4xxx / ql4_nx.c
blob939d7261c37a8faf664683d43badf2584796acc4
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2010 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
14 #include <asm-generic/io-64-nonatomic-lo-hi.h>
15
16 #define MASK(n) DMA_BIT_MASK(n)
17 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
18 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
19 #define MS_WIN(addr) (addr & 0x0ffc0000)
20 #define QLA82XX_PCI_MN_2M (0)
21 #define QLA82XX_PCI_MS_2M (0x80000)
22 #define QLA82XX_PCI_OCM0_2M (0xc0000)
23 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
24 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
25
26 /* CRB window related */
27 #define CRB_BLK(off) ((off >> 20) & 0x3f)
28 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
29 #define CRB_WINDOW_2M (0x130060)
30 #define CRB_HI(off) ((qla4_8xxx_crb_hub_agt[CRB_BLK(off)] << 20) | \
31 ((off) & 0xf0000))
32 #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
33 #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
34 #define CRB_INDIRECT_2M (0x1e0000UL)
35
36 static inline void __iomem *
37 qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off)
38 {
39 if ((off < ha->first_page_group_end) &&
40 (off >= ha->first_page_group_start))
41 return (void __iomem *)(ha->nx_pcibase + off);
42
43 return NULL;
44 }
45
46 #define MAX_CRB_XFORM 60
47 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
48 static int qla4_8xxx_crb_table_initialized;
49
50 #define qla4_8xxx_crb_addr_transform(name) \
51 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
52 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
53 static void
54 qla4_8xxx_crb_addr_transform_setup(void)
55 {
56 qla4_8xxx_crb_addr_transform(XDMA);
57 qla4_8xxx_crb_addr_transform(TIMR);
58 qla4_8xxx_crb_addr_transform(SRE);
59 qla4_8xxx_crb_addr_transform(SQN3);
60 qla4_8xxx_crb_addr_transform(SQN2);
61 qla4_8xxx_crb_addr_transform(SQN1);
62 qla4_8xxx_crb_addr_transform(SQN0);
63 qla4_8xxx_crb_addr_transform(SQS3);
64 qla4_8xxx_crb_addr_transform(SQS2);
65 qla4_8xxx_crb_addr_transform(SQS1);
66 qla4_8xxx_crb_addr_transform(SQS0);
67 qla4_8xxx_crb_addr_transform(RPMX7);
68 qla4_8xxx_crb_addr_transform(RPMX6);
69 qla4_8xxx_crb_addr_transform(RPMX5);
70 qla4_8xxx_crb_addr_transform(RPMX4);
71 qla4_8xxx_crb_addr_transform(RPMX3);
72 qla4_8xxx_crb_addr_transform(RPMX2);
73 qla4_8xxx_crb_addr_transform(RPMX1);
74 qla4_8xxx_crb_addr_transform(RPMX0);
75 qla4_8xxx_crb_addr_transform(ROMUSB);
76 qla4_8xxx_crb_addr_transform(SN);
77 qla4_8xxx_crb_addr_transform(QMN);
78 qla4_8xxx_crb_addr_transform(QMS);
79 qla4_8xxx_crb_addr_transform(PGNI);
80 qla4_8xxx_crb_addr_transform(PGND);
81 qla4_8xxx_crb_addr_transform(PGN3);
82 qla4_8xxx_crb_addr_transform(PGN2);
83 qla4_8xxx_crb_addr_transform(PGN1);
84 qla4_8xxx_crb_addr_transform(PGN0);
85 qla4_8xxx_crb_addr_transform(PGSI);
86 qla4_8xxx_crb_addr_transform(PGSD);
87 qla4_8xxx_crb_addr_transform(PGS3);
88 qla4_8xxx_crb_addr_transform(PGS2);
89 qla4_8xxx_crb_addr_transform(PGS1);
90 qla4_8xxx_crb_addr_transform(PGS0);
91 qla4_8xxx_crb_addr_transform(PS);
92 qla4_8xxx_crb_addr_transform(PH);
93 qla4_8xxx_crb_addr_transform(NIU);
94 qla4_8xxx_crb_addr_transform(I2Q);
95 qla4_8xxx_crb_addr_transform(EG);
96 qla4_8xxx_crb_addr_transform(MN);
97 qla4_8xxx_crb_addr_transform(MS);
98 qla4_8xxx_crb_addr_transform(CAS2);
99 qla4_8xxx_crb_addr_transform(CAS1);
100 qla4_8xxx_crb_addr_transform(CAS0);
101 qla4_8xxx_crb_addr_transform(CAM);
102 qla4_8xxx_crb_addr_transform(C2C1);
103 qla4_8xxx_crb_addr_transform(C2C0);
104 qla4_8xxx_crb_addr_transform(SMB);
105 qla4_8xxx_crb_addr_transform(OCM0);
106 qla4_8xxx_crb_addr_transform(I2C0);
107
108 qla4_8xxx_crb_table_initialized = 1;
109 }
110
111 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
112 {{{0, 0, 0, 0} } }, /* 0: PCI */
113 {{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */
114 {1, 0x0110000, 0x0120000, 0x130000},
115 {1, 0x0120000, 0x0122000, 0x124000},
116 {1, 0x0130000, 0x0132000, 0x126000},
117 {1, 0x0140000, 0x0142000, 0x128000},
118 {1, 0x0150000, 0x0152000, 0x12a000},
119 {1, 0x0160000, 0x0170000, 0x110000},
120 {1, 0x0170000, 0x0172000, 0x12e000},
121 {0, 0x0000000, 0x0000000, 0x000000},
122 {0, 0x0000000, 0x0000000, 0x000000},
123 {0, 0x0000000, 0x0000000, 0x000000},
124 {0, 0x0000000, 0x0000000, 0x000000},
125 {0, 0x0000000, 0x0000000, 0x000000},
126 {0, 0x0000000, 0x0000000, 0x000000},
127 {1, 0x01e0000, 0x01e0800, 0x122000},
128 {0, 0x0000000, 0x0000000, 0x000000} } },
129 {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
130 {{{0, 0, 0, 0} } }, /* 3: */
131 {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
132 {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */
133 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */
134 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */
135 {{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */
136 {0, 0x0000000, 0x0000000, 0x000000},
137 {0, 0x0000000, 0x0000000, 0x000000},
138 {0, 0x0000000, 0x0000000, 0x000000},
139 {0, 0x0000000, 0x0000000, 0x000000},
140 {0, 0x0000000, 0x0000000, 0x000000},
141 {0, 0x0000000, 0x0000000, 0x000000},
142 {0, 0x0000000, 0x0000000, 0x000000},
143 {0, 0x0000000, 0x0000000, 0x000000},
144 {0, 0x0000000, 0x0000000, 0x000000},
145 {0, 0x0000000, 0x0000000, 0x000000},
146 {0, 0x0000000, 0x0000000, 0x000000},
147 {0, 0x0000000, 0x0000000, 0x000000},
148 {0, 0x0000000, 0x0000000, 0x000000},
149 {0, 0x0000000, 0x0000000, 0x000000},
150 {1, 0x08f0000, 0x08f2000, 0x172000} } },
151 {{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/
152 {0, 0x0000000, 0x0000000, 0x000000},
153 {0, 0x0000000, 0x0000000, 0x000000},
154 {0, 0x0000000, 0x0000000, 0x000000},
155 {0, 0x0000000, 0x0000000, 0x000000},
156 {0, 0x0000000, 0x0000000, 0x000000},
157 {0, 0x0000000, 0x0000000, 0x000000},
158 {0, 0x0000000, 0x0000000, 0x000000},
159 {0, 0x0000000, 0x0000000, 0x000000},
160 {0, 0x0000000, 0x0000000, 0x000000},
161 {0, 0x0000000, 0x0000000, 0x000000},
162 {0, 0x0000000, 0x0000000, 0x000000},
163 {0, 0x0000000, 0x0000000, 0x000000},
164 {0, 0x0000000, 0x0000000, 0x000000},
165 {0, 0x0000000, 0x0000000, 0x000000},
166 {1, 0x09f0000, 0x09f2000, 0x176000} } },
167 {{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/
168 {0, 0x0000000, 0x0000000, 0x000000},
169 {0, 0x0000000, 0x0000000, 0x000000},
170 {0, 0x0000000, 0x0000000, 0x000000},
171 {0, 0x0000000, 0x0000000, 0x000000},
172 {0, 0x0000000, 0x0000000, 0x000000},
173 {0, 0x0000000, 0x0000000, 0x000000},
174 {0, 0x0000000, 0x0000000, 0x000000},
175 {0, 0x0000000, 0x0000000, 0x000000},
176 {0, 0x0000000, 0x0000000, 0x000000},
177 {0, 0x0000000, 0x0000000, 0x000000},
178 {0, 0x0000000, 0x0000000, 0x000000},
179 {0, 0x0000000, 0x0000000, 0x000000},
180 {0, 0x0000000, 0x0000000, 0x000000},
181 {0, 0x0000000, 0x0000000, 0x000000},
182 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
183 {{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/
184 {0, 0x0000000, 0x0000000, 0x000000},
185 {0, 0x0000000, 0x0000000, 0x000000},
186 {0, 0x0000000, 0x0000000, 0x000000},
187 {0, 0x0000000, 0x0000000, 0x000000},
188 {0, 0x0000000, 0x0000000, 0x000000},
189 {0, 0x0000000, 0x0000000, 0x000000},
190 {0, 0x0000000, 0x0000000, 0x000000},
191 {0, 0x0000000, 0x0000000, 0x000000},
192 {0, 0x0000000, 0x0000000, 0x000000},
193 {0, 0x0000000, 0x0000000, 0x000000},
194 {0, 0x0000000, 0x0000000, 0x000000},
195 {0, 0x0000000, 0x0000000, 0x000000},
196 {0, 0x0000000, 0x0000000, 0x000000},
197 {0, 0x0000000, 0x0000000, 0x000000},
198 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
199 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
200 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
201 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
202 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
203 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
204 {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
205 {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
206 {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
207 {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
208 {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
209 {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
210 {{{0, 0, 0, 0} } }, /* 23: */
211 {{{0, 0, 0, 0} } }, /* 24: */
212 {{{0, 0, 0, 0} } }, /* 25: */
213 {{{0, 0, 0, 0} } }, /* 26: */
214 {{{0, 0, 0, 0} } }, /* 27: */
215 {{{0, 0, 0, 0} } }, /* 28: */
216 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
217 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
218 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
219 {{{0} } }, /* 32: PCI */
220 {{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */
221 {1, 0x2110000, 0x2120000, 0x130000},
222 {1, 0x2120000, 0x2122000, 0x124000},
223 {1, 0x2130000, 0x2132000, 0x126000},
224 {1, 0x2140000, 0x2142000, 0x128000},
225 {1, 0x2150000, 0x2152000, 0x12a000},
226 {1, 0x2160000, 0x2170000, 0x110000},
227 {1, 0x2170000, 0x2172000, 0x12e000},
228 {0, 0x0000000, 0x0000000, 0x000000},
229 {0, 0x0000000, 0x0000000, 0x000000},
230 {0, 0x0000000, 0x0000000, 0x000000},
231 {0, 0x0000000, 0x0000000, 0x000000},
232 {0, 0x0000000, 0x0000000, 0x000000},
233 {0, 0x0000000, 0x0000000, 0x000000},
234 {0, 0x0000000, 0x0000000, 0x000000},
235 {0, 0x0000000, 0x0000000, 0x000000} } },
236 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
237 {{{0} } }, /* 35: */
238 {{{0} } }, /* 36: */
239 {{{0} } }, /* 37: */
240 {{{0} } }, /* 38: */
241 {{{0} } }, /* 39: */
242 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
243 {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
244 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
245 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
246 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
247 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
248 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
249 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
250 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
251 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
252 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
253 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
254 {{{0} } }, /* 52: */
255 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
256 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
257 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
258 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
259 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
260 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
261 {{{0} } }, /* 59: I2C0 */
262 {{{0} } }, /* 60: I2C1 */
263 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
264 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
265 {{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */
266 };
267
268 /*
269 * top 12 bits of crb internal address (hub, agent)
270 */
271 static unsigned qla4_8xxx_crb_hub_agt[64] = {
272 0,
273 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
274 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
275 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
276 0,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
278 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
280 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
291 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
293 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
294 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
296 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
298 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
299 0,
300 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
301 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
302 0,
303 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
304 0,
305 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
306 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
307 0,
308 0,
309 0,
310 0,
311 0,
312 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
313 0,
314 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
315 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
316 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
317 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
318 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
321 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
323 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
324 0,
325 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
326 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
327 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
328 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
329 0,
330 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
331 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
332 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
333 0,
334 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
335 0,
336 };
337
338 /* Device states */
339 static char *qdev_state[] = {
340 "Unknown",
341 "Cold",
342 "Initializing",
343 "Ready",
344 "Need Reset",
345 "Need Quiescent",
346 "Failed",
347 "Quiescent",
348 };
349
350 /*
351 * In: 'off' is offset from CRB space in 128M pci map
352 * Out: 'off' is 2M pci map addr
353 * side effect: lock crb window
354 */
355 static void
356 qla4_8xxx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
357 {
358 u32 win_read;
359
360 ha->crb_win = CRB_HI(*off);
361 writel(ha->crb_win,
362 (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
363
364 /* Read back value to make sure write has gone through before trying
365 * to use it. */
366 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
367 if (win_read != ha->crb_win) {
368 DEBUG2(ql4_printk(KERN_INFO, ha,
369 "%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
370 " off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
371 }
372 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
373 }
374
375 void
376 qla4_8xxx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
377 {
378 unsigned long flags = 0;
379 int rv;
380
381 rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
382
383 BUG_ON(rv == -1);
384
385 if (rv == 1) {
386 write_lock_irqsave(&ha->hw_lock, flags);
387 qla4_8xxx_crb_win_lock(ha);
388 qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
389 }
390
391 writel(data, (void __iomem *)off);
392
393 if (rv == 1) {
394 qla4_8xxx_crb_win_unlock(ha);
395 write_unlock_irqrestore(&ha->hw_lock, flags);
396 }
397 }
398
399 int
400 qla4_8xxx_rd_32(struct scsi_qla_host *ha, ulong off)
401 {
402 unsigned long flags = 0;
403 int rv;
404 u32 data;
405
406 rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
407
408 BUG_ON(rv == -1);
409
410 if (rv == 1) {
411 write_lock_irqsave(&ha->hw_lock, flags);
412 qla4_8xxx_crb_win_lock(ha);
413 qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
414 }
415 data = readl((void __iomem *)off);
416
417 if (rv == 1) {
418 qla4_8xxx_crb_win_unlock(ha);
419 write_unlock_irqrestore(&ha->hw_lock, flags);
420 }
421 return data;
422 }
423
424 /* Minidump related functions */
425 static int qla4_8xxx_md_rw_32(struct scsi_qla_host *ha, uint32_t off,
426 u32 data, uint8_t flag)
427 {
428 uint32_t win_read, off_value, rval = QLA_SUCCESS;
429
430 off_value = off & 0xFFFF0000;
431 writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
432
433 /* Read back value to make sure write has gone through before trying
434 * to use it.
435 */
436 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
437 if (win_read != off_value) {
438 DEBUG2(ql4_printk(KERN_INFO, ha,
439 "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
440 __func__, off_value, win_read, off));
441 return QLA_ERROR;
442 }
443
444 off_value = off & 0x0000FFFF;
445
446 if (flag)
447 writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
448 ha->nx_pcibase));
449 else
450 rval = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
451 ha->nx_pcibase));
452
453 return rval;
454 }
455
456 #define CRB_WIN_LOCK_TIMEOUT 100000000
457
458 int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha)
459 {
460 int i;
461 int done = 0, timeout = 0;
462
463 while (!done) {
464 /* acquire semaphore3 from PCI HW block */
465 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
466 if (done == 1)
467 break;
468 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
469 return -1;
470
471 timeout++;
472
473 /* Yield CPU */
474 if (!in_interrupt())
475 schedule();
476 else {
477 for (i = 0; i < 20; i++)
478 cpu_relax(); /*This a nop instr on i386*/
479 }
480 }
481 qla4_8xxx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
482 return 0;
483 }
484
485 void qla4_8xxx_crb_win_unlock(struct scsi_qla_host *ha)
486 {
487 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
488 }
489
490 #define IDC_LOCK_TIMEOUT 100000000
491
492 /**
493 * qla4_8xxx_idc_lock - hw_lock
494 * @ha: pointer to adapter structure
495 *
496 * General purpose lock used to synchronize access to
497 * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
498 **/
499 int qla4_8xxx_idc_lock(struct scsi_qla_host *ha)
500 {
501 int i;
502 int done = 0, timeout = 0;
503
504 while (!done) {
505 /* acquire semaphore5 from PCI HW block */
506 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
507 if (done == 1)
508 break;
509 if (timeout >= IDC_LOCK_TIMEOUT)
510 return -1;
511
512 timeout++;
513
514 /* Yield CPU */
515 if (!in_interrupt())
516 schedule();
517 else {
518 for (i = 0; i < 20; i++)
519 cpu_relax(); /*This a nop instr on i386*/
520 }
521 }
522 return 0;
523 }
524
525 void qla4_8xxx_idc_unlock(struct scsi_qla_host *ha)
526 {
527 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
528 }
529
530 int
531 qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
532 {
533 struct crb_128M_2M_sub_block_map *m;
534
535 if (*off >= QLA82XX_CRB_MAX)
536 return -1;
537
538 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
539 *off = (*off - QLA82XX_PCI_CAMQM) +
540 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
541 return 0;
542 }
543
544 if (*off < QLA82XX_PCI_CRBSPACE)
545 return -1;
546
547 *off -= QLA82XX_PCI_CRBSPACE;
548 /*
549 * Try direct map
550 */
551
552 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
553
554 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
555 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
556 return 0;
557 }
558
559 /*
560 * Not in direct map, use crb window
561 */
562 return 1;
563 }
564
565 /* PCI Windowing for DDR regions. */
566 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
567 (((addr) <= (high)) && ((addr) >= (low)))
568
569 /*
570 * check memory access boundary.
571 * used by test agent. support ddr access only for now
572 */
573 static unsigned long
574 qla4_8xxx_pci_mem_bound_check(struct scsi_qla_host *ha,
575 unsigned long long addr, int size)
576 {
577 if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
578 QLA82XX_ADDR_DDR_NET_MAX) ||
579 !QLA82XX_ADDR_IN_RANGE(addr + size - 1,
580 QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) ||
581 ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
582 return 0;
583 }
584 return 1;
585 }
586
587 static int qla4_8xxx_pci_set_window_warning_count;
588
589 static unsigned long
590 qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
591 {
592 int window;
593 u32 win_read;
594
595 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
596 QLA82XX_ADDR_DDR_NET_MAX)) {
597 /* DDR network side */
598 window = MN_WIN(addr);
599 ha->ddr_mn_window = window;
600 qla4_8xxx_wr_32(ha, ha->mn_win_crb |
601 QLA82XX_PCI_CRBSPACE, window);
602 win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
603 QLA82XX_PCI_CRBSPACE);
604 if ((win_read << 17) != window) {
605 ql4_printk(KERN_WARNING, ha,
606 "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
607 __func__, window, win_read);
608 }
609 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
610 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
611 QLA82XX_ADDR_OCM0_MAX)) {
612 unsigned int temp1;
613 /* if bits 19:18&17:11 are on */
614 if ((addr & 0x00ff800) == 0xff800) {
615 printk("%s: QM access not handled.\n", __func__);
616 addr = -1UL;
617 }
618
619 window = OCM_WIN(addr);
620 ha->ddr_mn_window = window;
621 qla4_8xxx_wr_32(ha, ha->mn_win_crb |
622 QLA82XX_PCI_CRBSPACE, window);
623 win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
624 QLA82XX_PCI_CRBSPACE);
625 temp1 = ((window & 0x1FF) << 7) |
626 ((window & 0x0FFFE0000) >> 17);
627 if (win_read != temp1) {
628 printk("%s: Written OCMwin (0x%x) != Read"
629 " OCMwin (0x%x)\n", __func__, temp1, win_read);
630 }
631 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
632
633 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
634 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
635 /* QDR network side */
636 window = MS_WIN(addr);
637 ha->qdr_sn_window = window;
638 qla4_8xxx_wr_32(ha, ha->ms_win_crb |
639 QLA82XX_PCI_CRBSPACE, window);
640 win_read = qla4_8xxx_rd_32(ha,
641 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
642 if (win_read != window) {
643 printk("%s: Written MSwin (0x%x) != Read "
644 "MSwin (0x%x)\n", __func__, window, win_read);
645 }
646 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
647
648 } else {
649 /*
650 * peg gdb frequently accesses memory that doesn't exist,
651 * this limits the chit chat so debugging isn't slowed down.
652 */
653 if ((qla4_8xxx_pci_set_window_warning_count++ < 8) ||
654 (qla4_8xxx_pci_set_window_warning_count%64 == 0)) {
655 printk("%s: Warning:%s Unknown address range!\n",
656 __func__, DRIVER_NAME);
657 }
658 addr = -1UL;
659 }
660 return addr;
661 }
662
663 /* check if address is in the same windows as the previous access */
664 static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha,
665 unsigned long long addr)
666 {
667 int window;
668 unsigned long long qdr_max;
669
670 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
671
672 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
673 QLA82XX_ADDR_DDR_NET_MAX)) {
674 /* DDR network side */
675 BUG(); /* MN access can not come here */
676 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
677 QLA82XX_ADDR_OCM0_MAX)) {
678 return 1;
679 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
680 QLA82XX_ADDR_OCM1_MAX)) {
681 return 1;
682 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
683 qdr_max)) {
684 /* QDR network side */
685 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
686 if (ha->qdr_sn_window == window)
687 return 1;
688 }
689
690 return 0;
691 }
692
693 static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
694 u64 off, void *data, int size)
695 {
696 unsigned long flags;
697 void __iomem *addr;
698 int ret = 0;
699 u64 start;
700 void __iomem *mem_ptr = NULL;
701 unsigned long mem_base;
702 unsigned long mem_page;
703
704 write_lock_irqsave(&ha->hw_lock, flags);
705
706 /*
707 * If attempting to access unknown address or straddle hw windows,
708 * do not access.
709 */
710 start = qla4_8xxx_pci_set_window(ha, off);
711 if ((start == -1UL) ||
712 (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
713 write_unlock_irqrestore(&ha->hw_lock, flags);
714 printk(KERN_ERR"%s out of bound pci memory access. "
715 "offset is 0x%llx\n", DRIVER_NAME, off);
716 return -1;
717 }
718
719 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
720 if (!addr) {
721 write_unlock_irqrestore(&ha->hw_lock, flags);
722 mem_base = pci_resource_start(ha->pdev, 0);
723 mem_page = start & PAGE_MASK;
724 /* Map two pages whenever user tries to access addresses in two
725 consecutive pages.
726 */
727 if (mem_page != ((start + size - 1) & PAGE_MASK))
728 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
729 else
730 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
731
732 if (mem_ptr == NULL) {
733 *(u8 *)data = 0;
734 return -1;
735 }
736 addr = mem_ptr;
737 addr += start & (PAGE_SIZE - 1);
738 write_lock_irqsave(&ha->hw_lock, flags);
739 }
740
741 switch (size) {
742 case 1:
743 *(u8 *)data = readb(addr);
744 break;
745 case 2:
746 *(u16 *)data = readw(addr);
747 break;
748 case 4:
749 *(u32 *)data = readl(addr);
750 break;
751 case 8:
752 *(u64 *)data = readq(addr);
753 break;
754 default:
755 ret = -1;
756 break;
757 }
758 write_unlock_irqrestore(&ha->hw_lock, flags);
759
760 if (mem_ptr)
761 iounmap(mem_ptr);
762 return ret;
763 }
764
765 static int
766 qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
767 void *data, int size)
768 {
769 unsigned long flags;
770 void __iomem *addr;
771 int ret = 0;
772 u64 start;
773 void __iomem *mem_ptr = NULL;
774 unsigned long mem_base;
775 unsigned long mem_page;
776
777 write_lock_irqsave(&ha->hw_lock, flags);
778
779 /*
780 * If attempting to access unknown address or straddle hw windows,
781 * do not access.
782 */
783 start = qla4_8xxx_pci_set_window(ha, off);
784 if ((start == -1UL) ||
785 (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
786 write_unlock_irqrestore(&ha->hw_lock, flags);
787 printk(KERN_ERR"%s out of bound pci memory access. "
788 "offset is 0x%llx\n", DRIVER_NAME, off);
789 return -1;
790 }
791
792 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
793 if (!addr) {
794 write_unlock_irqrestore(&ha->hw_lock, flags);
795 mem_base = pci_resource_start(ha->pdev, 0);
796 mem_page = start & PAGE_MASK;
797 /* Map two pages whenever user tries to access addresses in two
798 consecutive pages.
799 */
800 if (mem_page != ((start + size - 1) & PAGE_MASK))
801 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
802 else
803 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
804 if (mem_ptr == NULL)
805 return -1;
806
807 addr = mem_ptr;
808 addr += start & (PAGE_SIZE - 1);
809 write_lock_irqsave(&ha->hw_lock, flags);
810 }
811
812 switch (size) {
813 case 1:
814 writeb(*(u8 *)data, addr);
815 break;
816 case 2:
817 writew(*(u16 *)data, addr);
818 break;
819 case 4:
820 writel(*(u32 *)data, addr);
821 break;
822 case 8:
823 writeq(*(u64 *)data, addr);
824 break;
825 default:
826 ret = -1;
827 break;
828 }
829 write_unlock_irqrestore(&ha->hw_lock, flags);
830 if (mem_ptr)
831 iounmap(mem_ptr);
832 return ret;
833 }
834
835 #define MTU_FUDGE_FACTOR 100
836
837 static unsigned long
838 qla4_8xxx_decode_crb_addr(unsigned long addr)
839 {
840 int i;
841 unsigned long base_addr, offset, pci_base;
842
843 if (!qla4_8xxx_crb_table_initialized)
844 qla4_8xxx_crb_addr_transform_setup();
845
846 pci_base = ADDR_ERROR;
847 base_addr = addr & 0xfff00000;
848 offset = addr & 0x000fffff;
849
850 for (i = 0; i < MAX_CRB_XFORM; i++) {
851 if (crb_addr_xform[i] == base_addr) {
852 pci_base = i << 20;
853 break;
854 }
855 }
856 if (pci_base == ADDR_ERROR)
857 return pci_base;
858 else
859 return pci_base + offset;
860 }
861
862 static long rom_max_timeout = 100;
863 static long qla4_8xxx_rom_lock_timeout = 100;
864
865 static int
866 qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
867 {
868 int i;
869 int done = 0, timeout = 0;
870
871 while (!done) {
872 /* acquire semaphore2 from PCI HW block */
873
874 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
875 if (done == 1)
876 break;
877 if (timeout >= qla4_8xxx_rom_lock_timeout)
878 return -1;
879
880 timeout++;
881
882 /* Yield CPU */
883 if (!in_interrupt())
884 schedule();
885 else {
886 for (i = 0; i < 20; i++)
887 cpu_relax(); /*This a nop instr on i386*/
888 }
889 }
890 qla4_8xxx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
891 return 0;
892 }
893
894 static void
895 qla4_8xxx_rom_unlock(struct scsi_qla_host *ha)
896 {
897 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
898 }
899
900 static int
901 qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha)
902 {
903 long timeout = 0;
904 long done = 0 ;
905
906 while (done == 0) {
907 done = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
908 done &= 2;
909 timeout++;
910 if (timeout >= rom_max_timeout) {
911 printk("%s: Timeout reached waiting for rom done",
912 DRIVER_NAME);
913 return -1;
914 }
915 }
916 return 0;
917 }
918
919 static int
920 qla4_8xxx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
921 {
922 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
923 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
924 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
925 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
926 if (qla4_8xxx_wait_rom_done(ha)) {
927 printk("%s: Error waiting for rom done\n", DRIVER_NAME);
928 return -1;
929 }
930 /* reset abyte_cnt and dummy_byte_cnt */
931 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
932 udelay(10);
933 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
934
935 *valp = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
936 return 0;
937 }
938
939 static int
940 qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
941 {
942 int ret, loops = 0;
943
944 while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
945 udelay(100);
946 loops++;
947 }
948 if (loops >= 50000) {
949 printk("%s: qla4_8xxx_rom_lock failed\n", DRIVER_NAME);
950 return -1;
951 }
952 ret = qla4_8xxx_do_rom_fast_read(ha, addr, valp);
953 qla4_8xxx_rom_unlock(ha);
954 return ret;
955 }
956
957 /**
958 * This routine does CRB initialize sequence
959 * to put the ISP into operational state
960 **/
961 static int
962 qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
963 {
964 int addr, val;
965 int i ;
966 struct crb_addr_pair *buf;
967 unsigned long off;
968 unsigned offset, n;
969
970 struct crb_addr_pair {
971 long addr;
972 long data;
973 };
974
975 /* Halt all the indiviual PEGs and other blocks of the ISP */
976 qla4_8xxx_rom_lock(ha);
977
978 /* disable all I2Q */
979 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
980 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
981 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
982 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
983 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
984 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
985
986 /* disable all niu interrupts */
987 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
988 /* disable xge rx/tx */
989 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
990 /* disable xg1 rx/tx */
991 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
992 /* disable sideband mac */
993 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
994 /* disable ap0 mac */
995 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
996 /* disable ap1 mac */
997 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
998
999 /* halt sre */
1000 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1001 qla4_8xxx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1002
1003 /* halt epg */
1004 qla4_8xxx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1005
1006 /* halt timers */
1007 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1008 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1009 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1010 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1011 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1012 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1013
1014 /* halt pegs */
1015 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1016 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1017 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1018 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1019 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1020 msleep(5);
1021
1022 /* big hammer */
1023 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
1024 /* don't reset CAM block on reset */
1025 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1026 else
1027 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1028
1029 qla4_8xxx_rom_unlock(ha);
1030
1031 /* Read the signature value from the flash.
1032 * Offset 0: Contain signature (0xcafecafe)
1033 * Offset 4: Offset and number of addr/value pairs
1034 * that present in CRB initialize sequence
1035 */
1036 if (qla4_8xxx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1037 qla4_8xxx_rom_fast_read(ha, 4, &n) != 0) {
1038 ql4_printk(KERN_WARNING, ha,
1039 "[ERROR] Reading crb_init area: n: %08x\n", n);
1040 return -1;
1041 }
1042
1043 /* Offset in flash = lower 16 bits
1044 * Number of enteries = upper 16 bits
1045 */
1046 offset = n & 0xffffU;
1047 n = (n >> 16) & 0xffffU;
1048
1049 /* number of addr/value pair should not exceed 1024 enteries */
1050 if (n >= 1024) {
1051 ql4_printk(KERN_WARNING, ha,
1052 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1053 DRIVER_NAME, __func__, n);
1054 return -1;
1055 }
1056
1057 ql4_printk(KERN_INFO, ha,
1058 "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1059
1060 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1061 if (buf == NULL) {
1062 ql4_printk(KERN_WARNING, ha,
1063 "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1064 return -1;
1065 }
1066
1067 for (i = 0; i < n; i++) {
1068 if (qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1069 qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1070 0) {
1071 kfree(buf);
1072 return -1;
1073 }
1074
1075 buf[i].addr = addr;
1076 buf[i].data = val;
1077 }
1078
1079 for (i = 0; i < n; i++) {
1080 /* Translate internal CRB initialization
1081 * address to PCI bus address
1082 */
1083 off = qla4_8xxx_decode_crb_addr((unsigned long)buf[i].addr) +
1084 QLA82XX_PCI_CRBSPACE;
1085 /* Not all CRB addr/value pair to be written,
1086 * some of them are skipped
1087 */
1088
1089 /* skip if LS bit is set*/
1090 if (off & 0x1) {
1091 DEBUG2(ql4_printk(KERN_WARNING, ha,
1092 "Skip CRB init replay for offset = 0x%lx\n", off));
1093 continue;
1094 }
1095
1096 /* skipping cold reboot MAGIC */
1097 if (off == QLA82XX_CAM_RAM(0x1fc))
1098 continue;
1099
1100 /* do not reset PCI */
1101 if (off == (ROMUSB_GLB + 0xbc))
1102 continue;
1103
1104 /* skip core clock, so that firmware can increase the clock */
1105 if (off == (ROMUSB_GLB + 0xc8))
1106 continue;
1107
1108 /* skip the function enable register */
1109 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1110 continue;
1111
1112 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1113 continue;
1114
1115 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1116 continue;
1117
1118 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1119 continue;
1120
1121 if (off == ADDR_ERROR) {
1122 ql4_printk(KERN_WARNING, ha,
1123 "%s: [ERROR] Unknown addr: 0x%08lx\n",
1124 DRIVER_NAME, buf[i].addr);
1125 continue;
1126 }
1127
1128 qla4_8xxx_wr_32(ha, off, buf[i].data);
1129
1130 /* ISP requires much bigger delay to settle down,
1131 * else crb_window returns 0xffffffff
1132 */
1133 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1134 msleep(1000);
1135
1136 /* ISP requires millisec delay between
1137 * successive CRB register updation
1138 */
1139 msleep(1);
1140 }
1141
1142 kfree(buf);
1143
1144 /* Resetting the data and instruction cache */
1145 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1146 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1147 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1148
1149 /* Clear all protocol processing engines */
1150 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1151 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1152 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1153 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1154 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1155 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1156 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1157 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1158
1159 return 0;
1160 }
1161
1162 static int
1163 qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1164 {
1165 int i, rval = 0;
1166 long size = 0;
1167 long flashaddr, memaddr;
1168 u64 data;
1169 u32 high, low;
1170
1171 flashaddr = memaddr = ha->hw.flt_region_bootload;
1172 size = (image_start - flashaddr) / 8;
1173
1174 DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1175 ha->host_no, __func__, flashaddr, image_start));
1176
1177 for (i = 0; i < size; i++) {
1178 if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1179 (qla4_8xxx_rom_fast_read(ha, flashaddr + 4,
1180 (int *)&high))) {
1181 rval = -1;
1182 goto exit_load_from_flash;
1183 }
1184 data = ((u64)high << 32) | low ;
1185 rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
1186 if (rval)
1187 goto exit_load_from_flash;
1188
1189 flashaddr += 8;
1190 memaddr += 8;
1191
1192 if (i % 0x1000 == 0)
1193 msleep(1);
1194
1195 }
1196
1197 udelay(100);
1198
1199 read_lock(&ha->hw_lock);
1200 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1201 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1202 read_unlock(&ha->hw_lock);
1203
1204 exit_load_from_flash:
1205 return rval;
1206 }
1207
1208 static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1209 {
1210 u32 rst;
1211
1212 qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1213 if (qla4_8xxx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1214 printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1215 __func__);
1216 return QLA_ERROR;
1217 }
1218
1219 udelay(500);
1220
1221 /* at this point, QM is in reset. This could be a problem if there are
1222 * incoming d* transition queue messages. QM/PCIE could wedge.
1223 * To get around this, QM is brought out of reset.
1224 */
1225
1226 rst = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1227 /* unreset qm */
1228 rst &= ~(1 << 28);
1229 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1230
1231 if (qla4_8xxx_load_from_flash(ha, image_start)) {
1232 printk("%s: Error trying to load fw from flash!\n", __func__);
1233 return QLA_ERROR;
1234 }
1235
1236 return QLA_SUCCESS;
1237 }
1238
1239 int
1240 qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
1241 u64 off, void *data, int size)
1242 {
1243 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1244 int shift_amount;
1245 uint32_t temp;
1246 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1247
1248 /*
1249 * If not MN, go check for MS or invalid.
1250 */
1251
1252 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1253 mem_crb = QLA82XX_CRB_QDR_NET;
1254 else {
1255 mem_crb = QLA82XX_CRB_DDR_NET;
1256 if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
1257 return qla4_8xxx_pci_mem_read_direct(ha,
1258 off, data, size);
1259 }
1260
1261
1262 off8 = off & 0xfffffff0;
1263 off0[0] = off & 0xf;
1264 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1265 shift_amount = 4;
1266
1267 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1268 off0[1] = 0;
1269 sz[1] = size - sz[0];
1270
1271 for (i = 0; i < loop; i++) {
1272 temp = off8 + (i << shift_amount);
1273 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1274 temp = 0;
1275 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1276 temp = MIU_TA_CTL_ENABLE;
1277 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1278 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1279 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1280
1281 for (j = 0; j < MAX_CTL_CHECK; j++) {
1282 temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1283 if ((temp & MIU_TA_CTL_BUSY) == 0)
1284 break;
1285 }
1286
1287 if (j >= MAX_CTL_CHECK) {
1288 printk_ratelimited(KERN_ERR
1289 "%s: failed to read through agent\n",
1290 __func__);
1291 break;
1292 }
1293
1294 start = off0[i] >> 2;
1295 end = (off0[i] + sz[i] - 1) >> 2;
1296 for (k = start; k <= end; k++) {
1297 temp = qla4_8xxx_rd_32(ha,
1298 mem_crb + MIU_TEST_AGT_RDDATA(k));
1299 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1300 }
1301 }
1302
1303 if (j >= MAX_CTL_CHECK)
1304 return -1;
1305
1306 if ((off0[0] & 7) == 0) {
1307 val = word[0];
1308 } else {
1309 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1310 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1311 }
1312
1313 switch (size) {
1314 case 1:
1315 *(uint8_t *)data = val;
1316 break;
1317 case 2:
1318 *(uint16_t *)data = val;
1319 break;
1320 case 4:
1321 *(uint32_t *)data = val;
1322 break;
1323 case 8:
1324 *(uint64_t *)data = val;
1325 break;
1326 }
1327 return 0;
1328 }
1329
1330 int
1331 qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
1332 u64 off, void *data, int size)
1333 {
1334 int i, j, ret = 0, loop, sz[2], off0;
1335 int scale, shift_amount, startword;
1336 uint32_t temp;
1337 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1338
1339 /*
1340 * If not MN, go check for MS or invalid.
1341 */
1342 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1343 mem_crb = QLA82XX_CRB_QDR_NET;
1344 else {
1345 mem_crb = QLA82XX_CRB_DDR_NET;
1346 if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
1347 return qla4_8xxx_pci_mem_write_direct(ha,
1348 off, data, size);
1349 }
1350
1351 off0 = off & 0x7;
1352 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1353 sz[1] = size - sz[0];
1354
1355 off8 = off & 0xfffffff0;
1356 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1357 shift_amount = 4;
1358 scale = 2;
1359 startword = (off & 0xf)/8;
1360
1361 for (i = 0; i < loop; i++) {
1362 if (qla4_8xxx_pci_mem_read_2M(ha, off8 +
1363 (i << shift_amount), &word[i * scale], 8))
1364 return -1;
1365 }
1366
1367 switch (size) {
1368 case 1:
1369 tmpw = *((uint8_t *)data);
1370 break;
1371 case 2:
1372 tmpw = *((uint16_t *)data);
1373 break;
1374 case 4:
1375 tmpw = *((uint32_t *)data);
1376 break;
1377 case 8:
1378 default:
1379 tmpw = *((uint64_t *)data);
1380 break;
1381 }
1382
1383 if (sz[0] == 8)
1384 word[startword] = tmpw;
1385 else {
1386 word[startword] &=
1387 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1388 word[startword] |= tmpw << (off0 * 8);
1389 }
1390
1391 if (sz[1] != 0) {
1392 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1393 word[startword+1] |= tmpw >> (sz[0] * 8);
1394 }
1395
1396 for (i = 0; i < loop; i++) {
1397 temp = off8 + (i << shift_amount);
1398 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1399 temp = 0;
1400 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1401 temp = word[i * scale] & 0xffffffff;
1402 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1403 temp = (word[i * scale] >> 32) & 0xffffffff;
1404 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1405 temp = word[i*scale + 1] & 0xffffffff;
1406 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1407 temp);
1408 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1409 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1410 temp);
1411
1412 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1413 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1414 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1415 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1416
1417 for (j = 0; j < MAX_CTL_CHECK; j++) {
1418 temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1419 if ((temp & MIU_TA_CTL_BUSY) == 0)
1420 break;
1421 }
1422
1423 if (j >= MAX_CTL_CHECK) {
1424 if (printk_ratelimit())
1425 ql4_printk(KERN_ERR, ha,
1426 "%s: failed to read through agent\n",
1427 __func__);
1428 ret = -1;
1429 break;
1430 }
1431 }
1432
1433 return ret;
1434 }
1435
1436 static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
1437 {
1438 u32 val = 0;
1439 int retries = 60;
1440
1441 if (!pegtune_val) {
1442 do {
1443 val = qla4_8xxx_rd_32(ha, CRB_CMDPEG_STATE);
1444 if ((val == PHAN_INITIALIZE_COMPLETE) ||
1445 (val == PHAN_INITIALIZE_ACK))
1446 return 0;
1447 set_current_state(TASK_UNINTERRUPTIBLE);
1448 schedule_timeout(500);
1449
1450 } while (--retries);
1451
1452 if (!retries) {
1453 pegtune_val = qla4_8xxx_rd_32(ha,
1454 QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1455 printk(KERN_WARNING "%s: init failed, "
1456 "pegtune_val = %x\n", __func__, pegtune_val);
1457 return -1;
1458 }
1459 }
1460 return 0;
1461 }
1462
1463 static int qla4_8xxx_rcvpeg_ready(struct scsi_qla_host *ha)
1464 {
1465 uint32_t state = 0;
1466 int loops = 0;
1467
1468 /* Window 1 call */
1469 read_lock(&ha->hw_lock);
1470 state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
1471 read_unlock(&ha->hw_lock);
1472
1473 while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
1474 udelay(100);
1475 /* Window 1 call */
1476 read_lock(&ha->hw_lock);
1477 state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
1478 read_unlock(&ha->hw_lock);
1479
1480 loops++;
1481 }
1482
1483 if (loops >= 30000) {
1484 DEBUG2(ql4_printk(KERN_INFO, ha,
1485 "Receive Peg initialization not complete: 0x%x.\n", state));
1486 return QLA_ERROR;
1487 }
1488
1489 return QLA_SUCCESS;
1490 }
1491
1492 void
1493 qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
1494 {
1495 uint32_t drv_active;
1496
1497 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1498 drv_active |= (1 << (ha->func_num * 4));
1499 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1500 __func__, ha->host_no, drv_active);
1501 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
1502 }
1503
1504 void
1505 qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1506 {
1507 uint32_t drv_active;
1508
1509 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1510 drv_active &= ~(1 << (ha->func_num * 4));
1511 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1512 __func__, ha->host_no, drv_active);
1513 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
1514 }
1515
1516 static inline int
1517 qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1518 {
1519 uint32_t drv_state, drv_active;
1520 int rval;
1521
1522 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1523 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1524 rval = drv_state & (1 << (ha->func_num * 4));
1525 if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1526 rval = 1;
1527
1528 return rval;
1529 }
1530
1531 static inline void
1532 qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1533 {
1534 uint32_t drv_state;
1535
1536 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1537 drv_state |= (1 << (ha->func_num * 4));
1538 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1539 __func__, ha->host_no, drv_state);
1540 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
1541 }
1542
1543 static inline void
1544 qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1545 {
1546 uint32_t drv_state;
1547
1548 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1549 drv_state &= ~(1 << (ha->func_num * 4));
1550 ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1551 __func__, ha->host_no, drv_state);
1552 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
1553 }
1554
1555 static inline void
1556 qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1557 {
1558 uint32_t qsnt_state;
1559
1560 qsnt_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1561 qsnt_state |= (2 << (ha->func_num * 4));
1562 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
1563 }
1564
1565
1566 static int
1567 qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1568 {
1569 int pcie_cap;
1570 uint16_t lnk;
1571
1572 /* scrub dma mask expansion register */
1573 qla4_8xxx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1574
1575 /* Overwrite stale initialization register values */
1576 qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1577 qla4_8xxx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1578 qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1579 qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1580
1581 if (qla4_8xxx_load_fw(ha, image_start) != QLA_SUCCESS) {
1582 printk("%s: Error trying to start fw!\n", __func__);
1583 return QLA_ERROR;
1584 }
1585
1586 /* Handshake with the card before we register the devices. */
1587 if (qla4_8xxx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1588 printk("%s: Error during card handshake!\n", __func__);
1589 return QLA_ERROR;
1590 }
1591
1592 /* Negotiated Link width */
1593 pcie_cap = pci_pcie_cap(ha->pdev);
1594 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
1595 ha->link_width = (lnk >> 4) & 0x3f;
1596
1597 /* Synchronize with Receive peg */
1598 return qla4_8xxx_rcvpeg_ready(ha);
1599 }
1600
1601 static int
1602 qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
1603 {
1604 int rval = QLA_ERROR;
1605
1606 /*
1607 * FW Load priority:
1608 * 1) Operational firmware residing in flash.
1609 * 2) Fail
1610 */
1611
1612 ql4_printk(KERN_INFO, ha,
1613 "FW: Retrieving flash offsets from FLT/FDT ...\n");
1614 rval = qla4_8xxx_get_flash_info(ha);
1615 if (rval != QLA_SUCCESS)
1616 return rval;
1617
1618 ql4_printk(KERN_INFO, ha,
1619 "FW: Attempting to load firmware from flash...\n");
1620 rval = qla4_8xxx_start_firmware(ha, ha->hw.flt_region_fw);
1621
1622 if (rval != QLA_SUCCESS) {
1623 ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1624 " FAILED...\n");
1625 return rval;
1626 }
1627
1628 return rval;
1629 }
1630
1631 static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha)
1632 {
1633 if (qla4_8xxx_rom_lock(ha)) {
1634 /* Someone else is holding the lock. */
1635 dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1636 }
1637
1638 /*
1639 * Either we got the lock, or someone
1640 * else died while holding it.
1641 * In either case, unlock.
1642 */
1643 qla4_8xxx_rom_unlock(ha);
1644 }
1645
1646 static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
1647 struct qla82xx_minidump_entry_hdr *entry_hdr,
1648 uint32_t **d_ptr)
1649 {
1650 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
1651 struct qla82xx_minidump_entry_crb *crb_hdr;
1652 uint32_t *data_ptr = *d_ptr;
1653
1654 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1655 crb_hdr = (struct qla82xx_minidump_entry_crb *)entry_hdr;
1656 r_addr = crb_hdr->addr;
1657 r_stride = crb_hdr->crb_strd.addr_stride;
1658 loop_cnt = crb_hdr->op_count;
1659
1660 for (i = 0; i < loop_cnt; i++) {
1661 r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
1662 *data_ptr++ = cpu_to_le32(r_addr);
1663 *data_ptr++ = cpu_to_le32(r_value);
1664 r_addr += r_stride;
1665 }
1666 *d_ptr = data_ptr;
1667 }
1668
1669 static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
1670 struct qla82xx_minidump_entry_hdr *entry_hdr,
1671 uint32_t **d_ptr)
1672 {
1673 uint32_t addr, r_addr, c_addr, t_r_addr;
1674 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
1675 unsigned long p_wait, w_time, p_mask;
1676 uint32_t c_value_w, c_value_r;
1677 struct qla82xx_minidump_entry_cache *cache_hdr;
1678 int rval = QLA_ERROR;
1679 uint32_t *data_ptr = *d_ptr;
1680
1681 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1682 cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
1683
1684 loop_count = cache_hdr->op_count;
1685 r_addr = cache_hdr->read_addr;
1686 c_addr = cache_hdr->control_addr;
1687 c_value_w = cache_hdr->cache_ctrl.write_value;
1688
1689 t_r_addr = cache_hdr->tag_reg_addr;
1690 t_value = cache_hdr->addr_ctrl.init_tag_value;
1691 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
1692 p_wait = cache_hdr->cache_ctrl.poll_wait;
1693 p_mask = cache_hdr->cache_ctrl.poll_mask;
1694
1695 for (i = 0; i < loop_count; i++) {
1696 qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
1697
1698 if (c_value_w)
1699 qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
1700
1701 if (p_mask) {
1702 w_time = jiffies + p_wait;
1703 do {
1704 c_value_r = qla4_8xxx_md_rw_32(ha, c_addr,
1705 0, 0);
1706 if ((c_value_r & p_mask) == 0) {
1707 break;
1708 } else if (time_after_eq(jiffies, w_time)) {
1709 /* capturing dump failed */
1710 return rval;
1711 }
1712 } while (1);
1713 }
1714
1715 addr = r_addr;
1716 for (k = 0; k < r_cnt; k++) {
1717 r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
1718 *data_ptr++ = cpu_to_le32(r_value);
1719 addr += cache_hdr->read_ctrl.read_addr_stride;
1720 }
1721
1722 t_value += cache_hdr->addr_ctrl.tag_value_stride;
1723 }
1724 *d_ptr = data_ptr;
1725 return QLA_SUCCESS;
1726 }
1727
1728 static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
1729 struct qla82xx_minidump_entry_hdr *entry_hdr)
1730 {
1731 struct qla82xx_minidump_entry_crb *crb_entry;
1732 uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
1733 uint32_t crb_addr;
1734 unsigned long wtime;
1735 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
1736 int i;
1737
1738 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1739 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1740 ha->fw_dump_tmplt_hdr;
1741 crb_entry = (struct qla82xx_minidump_entry_crb *)entry_hdr;
1742
1743 crb_addr = crb_entry->addr;
1744 for (i = 0; i < crb_entry->op_count; i++) {
1745 opcode = crb_entry->crb_ctrl.opcode;
1746 if (opcode & QLA82XX_DBG_OPCODE_WR) {
1747 qla4_8xxx_md_rw_32(ha, crb_addr,
1748 crb_entry->value_1, 1);
1749 opcode &= ~QLA82XX_DBG_OPCODE_WR;
1750 }
1751 if (opcode & QLA82XX_DBG_OPCODE_RW) {
1752 read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
1753 qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
1754 opcode &= ~QLA82XX_DBG_OPCODE_RW;
1755 }
1756 if (opcode & QLA82XX_DBG_OPCODE_AND) {
1757 read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
1758 read_value &= crb_entry->value_2;
1759 opcode &= ~QLA82XX_DBG_OPCODE_AND;
1760 if (opcode & QLA82XX_DBG_OPCODE_OR) {
1761 read_value |= crb_entry->value_3;
1762 opcode &= ~QLA82XX_DBG_OPCODE_OR;
1763 }
1764 qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
1765 }
1766 if (opcode & QLA82XX_DBG_OPCODE_OR) {
1767 read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
1768 read_value |= crb_entry->value_3;
1769 qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
1770 opcode &= ~QLA82XX_DBG_OPCODE_OR;
1771 }
1772 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
1773 poll_time = crb_entry->crb_strd.poll_timeout;
1774 wtime = jiffies + poll_time;
1775 read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
1776
1777 do {
1778 if ((read_value & crb_entry->value_2) ==
1779 crb_entry->value_1)
1780 break;
1781 else if (time_after_eq(jiffies, wtime)) {
1782 /* capturing dump failed */
1783 rval = QLA_ERROR;
1784 break;
1785 } else
1786 read_value = qla4_8xxx_md_rw_32(ha,
1787 crb_addr, 0, 0);
1788 } while (1);
1789 opcode &= ~QLA82XX_DBG_OPCODE_POLL;
1790 }
1791
1792 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
1793 if (crb_entry->crb_strd.state_index_a) {
1794 index = crb_entry->crb_strd.state_index_a;
1795 addr = tmplt_hdr->saved_state_array[index];
1796 } else {
1797 addr = crb_addr;
1798 }
1799
1800 read_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
1801 index = crb_entry->crb_ctrl.state_index_v;
1802 tmplt_hdr->saved_state_array[index] = read_value;
1803 opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
1804 }
1805
1806 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
1807 if (crb_entry->crb_strd.state_index_a) {
1808 index = crb_entry->crb_strd.state_index_a;
1809 addr = tmplt_hdr->saved_state_array[index];
1810 } else {
1811 addr = crb_addr;
1812 }
1813
1814 if (crb_entry->crb_ctrl.state_index_v) {
1815 index = crb_entry->crb_ctrl.state_index_v;
1816 read_value =
1817 tmplt_hdr->saved_state_array[index];
1818 } else {
1819 read_value = crb_entry->value_1;
1820 }
1821
1822 qla4_8xxx_md_rw_32(ha, addr, read_value, 1);
1823 opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
1824 }
1825
1826 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
1827 index = crb_entry->crb_ctrl.state_index_v;
1828 read_value = tmplt_hdr->saved_state_array[index];
1829 read_value <<= crb_entry->crb_ctrl.shl;
1830 read_value >>= crb_entry->crb_ctrl.shr;
1831 if (crb_entry->value_2)
1832 read_value &= crb_entry->value_2;
1833 read_value |= crb_entry->value_3;
1834 read_value += crb_entry->value_1;
1835 tmplt_hdr->saved_state_array[index] = read_value;
1836 opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
1837 }
1838 crb_addr += crb_entry->crb_strd.addr_stride;
1839 }
1840 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
1841 return rval;
1842 }
1843
1844 static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
1845 struct qla82xx_minidump_entry_hdr *entry_hdr,
1846 uint32_t **d_ptr)
1847 {
1848 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
1849 struct qla82xx_minidump_entry_rdocm *ocm_hdr;
1850 uint32_t *data_ptr = *d_ptr;
1851
1852 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1853 ocm_hdr = (struct qla82xx_minidump_entry_rdocm *)entry_hdr;
1854 r_addr = ocm_hdr->read_addr;
1855 r_stride = ocm_hdr->read_addr_stride;
1856 loop_cnt = ocm_hdr->op_count;
1857
1858 DEBUG2(ql4_printk(KERN_INFO, ha,
1859 "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
1860 __func__, r_addr, r_stride, loop_cnt));
1861
1862 for (i = 0; i < loop_cnt; i++) {
1863 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
1864 *data_ptr++ = cpu_to_le32(r_value);
1865 r_addr += r_stride;
1866 }
1867 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
1868 __func__, (loop_cnt * sizeof(uint32_t))));
1869 *d_ptr = data_ptr;
1870 }
1871
1872 static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
1873 struct qla82xx_minidump_entry_hdr *entry_hdr,
1874 uint32_t **d_ptr)
1875 {
1876 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
1877 struct qla82xx_minidump_entry_mux *mux_hdr;
1878 uint32_t *data_ptr = *d_ptr;
1879
1880 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1881 mux_hdr = (struct qla82xx_minidump_entry_mux *)entry_hdr;
1882 r_addr = mux_hdr->read_addr;
1883 s_addr = mux_hdr->select_addr;
1884 s_stride = mux_hdr->select_value_stride;
1885 s_value = mux_hdr->select_value;
1886 loop_cnt = mux_hdr->op_count;
1887
1888 for (i = 0; i < loop_cnt; i++) {
1889 qla4_8xxx_md_rw_32(ha, s_addr, s_value, 1);
1890 r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
1891 *data_ptr++ = cpu_to_le32(s_value);
1892 *data_ptr++ = cpu_to_le32(r_value);
1893 s_value += s_stride;
1894 }
1895 *d_ptr = data_ptr;
1896 }
1897
1898 static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
1899 struct qla82xx_minidump_entry_hdr *entry_hdr,
1900 uint32_t **d_ptr)
1901 {
1902 uint32_t addr, r_addr, c_addr, t_r_addr;
1903 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
1904 uint32_t c_value_w;
1905 struct qla82xx_minidump_entry_cache *cache_hdr;
1906 uint32_t *data_ptr = *d_ptr;
1907
1908 cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
1909 loop_count = cache_hdr->op_count;
1910 r_addr = cache_hdr->read_addr;
1911 c_addr = cache_hdr->control_addr;
1912 c_value_w = cache_hdr->cache_ctrl.write_value;
1913
1914 t_r_addr = cache_hdr->tag_reg_addr;
1915 t_value = cache_hdr->addr_ctrl.init_tag_value;
1916 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
1917
1918 for (i = 0; i < loop_count; i++) {
1919 qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
1920 qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
1921 addr = r_addr;
1922 for (k = 0; k < r_cnt; k++) {
1923 r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
1924 *data_ptr++ = cpu_to_le32(r_value);
1925 addr += cache_hdr->read_ctrl.read_addr_stride;
1926 }
1927 t_value += cache_hdr->addr_ctrl.tag_value_stride;
1928 }
1929 *d_ptr = data_ptr;
1930 }
1931
1932 static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
1933 struct qla82xx_minidump_entry_hdr *entry_hdr,
1934 uint32_t **d_ptr)
1935 {
1936 uint32_t s_addr, r_addr;
1937 uint32_t r_stride, r_value, r_cnt, qid = 0;
1938 uint32_t i, k, loop_cnt;
1939 struct qla82xx_minidump_entry_queue *q_hdr;
1940 uint32_t *data_ptr = *d_ptr;
1941
1942 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1943 q_hdr = (struct qla82xx_minidump_entry_queue *)entry_hdr;
1944 s_addr = q_hdr->select_addr;
1945 r_cnt = q_hdr->rd_strd.read_addr_cnt;
1946 r_stride = q_hdr->rd_strd.read_addr_stride;
1947 loop_cnt = q_hdr->op_count;
1948
1949 for (i = 0; i < loop_cnt; i++) {
1950 qla4_8xxx_md_rw_32(ha, s_addr, qid, 1);
1951 r_addr = q_hdr->read_addr;
1952 for (k = 0; k < r_cnt; k++) {
1953 r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
1954 *data_ptr++ = cpu_to_le32(r_value);
1955 r_addr += r_stride;
1956 }
1957 qid += q_hdr->q_strd.queue_id_stride;
1958 }
1959 *d_ptr = data_ptr;
1960 }
1961
1962 #define MD_DIRECT_ROM_WINDOW 0x42110030
1963 #define MD_DIRECT_ROM_READ_BASE 0x42150000
1964
1965 static void qla4_8xxx_minidump_process_rdrom(struct scsi_qla_host *ha,
1966 struct qla82xx_minidump_entry_hdr *entry_hdr,
1967 uint32_t **d_ptr)
1968 {
1969 uint32_t r_addr, r_value;
1970 uint32_t i, loop_cnt;
1971 struct qla82xx_minidump_entry_rdrom *rom_hdr;
1972 uint32_t *data_ptr = *d_ptr;
1973
1974 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1975 rom_hdr = (struct qla82xx_minidump_entry_rdrom *)entry_hdr;
1976 r_addr = rom_hdr->read_addr;
1977 loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
1978
1979 DEBUG2(ql4_printk(KERN_INFO, ha,
1980 "[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
1981 __func__, r_addr, loop_cnt));
1982
1983 for (i = 0; i < loop_cnt; i++) {
1984 qla4_8xxx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
1985 (r_addr & 0xFFFF0000), 1);
1986 r_value = qla4_8xxx_md_rw_32(ha,
1987 MD_DIRECT_ROM_READ_BASE +
1988 (r_addr & 0x0000FFFF), 0, 0);
1989 *data_ptr++ = cpu_to_le32(r_value);
1990 r_addr += sizeof(uint32_t);
1991 }
1992 *d_ptr = data_ptr;
1993 }
1994
1995 #define MD_MIU_TEST_AGT_CTRL 0x41000090
1996 #define MD_MIU_TEST_AGT_ADDR_LO 0x41000094
1997 #define MD_MIU_TEST_AGT_ADDR_HI 0x41000098
1998
1999 static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2000 struct qla82xx_minidump_entry_hdr *entry_hdr,
2001 uint32_t **d_ptr)
2002 {
2003 uint32_t r_addr, r_value, r_data;
2004 uint32_t i, j, loop_cnt;
2005 struct qla82xx_minidump_entry_rdmem *m_hdr;
2006 unsigned long flags;
2007 uint32_t *data_ptr = *d_ptr;
2008
2009 DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2010 m_hdr = (struct qla82xx_minidump_entry_rdmem *)entry_hdr;
2011 r_addr = m_hdr->read_addr;
2012 loop_cnt = m_hdr->read_data_size/16;
2013
2014 DEBUG2(ql4_printk(KERN_INFO, ha,
2015 "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2016 __func__, r_addr, m_hdr->read_data_size));
2017
2018 if (r_addr & 0xf) {
2019 DEBUG2(ql4_printk(KERN_INFO, ha,
2020 "[%s]: Read addr 0x%x not 16 bytes alligned\n",
2021 __func__, r_addr));
2022 return QLA_ERROR;
2023 }
2024
2025 if (m_hdr->read_data_size % 16) {
2026 DEBUG2(ql4_printk(KERN_INFO, ha,
2027 "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2028 __func__, m_hdr->read_data_size));
2029 return QLA_ERROR;
2030 }
2031
2032 DEBUG2(ql4_printk(KERN_INFO, ha,
2033 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2034 __func__, r_addr, m_hdr->read_data_size, loop_cnt));
2035
2036 write_lock_irqsave(&ha->hw_lock, flags);
2037 for (i = 0; i < loop_cnt; i++) {
2038 qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
2039 r_value = 0;
2040 qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
2041 r_value = MIU_TA_CTL_ENABLE;
2042 qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
2043 r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
2044 qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
2045
2046 for (j = 0; j < MAX_CTL_CHECK; j++) {
2047 r_value = qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL,
2048 0, 0);
2049 if ((r_value & MIU_TA_CTL_BUSY) == 0)
2050 break;
2051 }
2052
2053 if (j >= MAX_CTL_CHECK) {
2054 printk_ratelimited(KERN_ERR
2055 "%s: failed to read through agent\n",
2056 __func__);
2057 write_unlock_irqrestore(&ha->hw_lock, flags);
2058 return QLA_SUCCESS;
2059 }
2060
2061 for (j = 0; j < 4; j++) {
2062 r_data = qla4_8xxx_md_rw_32(ha,
2063 MD_MIU_TEST_AGT_RDDATA[j],
2064 0, 0);
2065 *data_ptr++ = cpu_to_le32(r_data);
2066 }
2067
2068 r_addr += 16;
2069 }
2070 write_unlock_irqrestore(&ha->hw_lock, flags);
2071
2072 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
2073 __func__, (loop_cnt * 16)));
2074
2075 *d_ptr = data_ptr;
2076 return QLA_SUCCESS;
2077 }
2078
2079 static void ql4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
2080 struct qla82xx_minidump_entry_hdr *entry_hdr,
2081 int index)
2082 {
2083 entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
2084 DEBUG2(ql4_printk(KERN_INFO, ha,
2085 "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2086 ha->host_no, index, entry_hdr->entry_type,
2087 entry_hdr->d_ctrl.entry_capture_mask));
2088 }
2089
2090 /**
2091 * qla82xx_collect_md_data - Retrieve firmware minidump data.
2092 * @ha: pointer to adapter structure
2093 **/
2094 static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
2095 {
2096 int num_entry_hdr = 0;
2097 struct qla82xx_minidump_entry_hdr *entry_hdr;
2098 struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2099 uint32_t *data_ptr;
2100 uint32_t data_collected = 0;
2101 int i, rval = QLA_ERROR;
2102 uint64_t now;
2103 uint32_t timestamp;
2104
2105 if (!ha->fw_dump) {
2106 ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
2107 __func__, ha->host_no);
2108 return rval;
2109 }
2110
2111 tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
2112 ha->fw_dump_tmplt_hdr;
2113 data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
2114 ha->fw_dump_tmplt_size);
2115 data_collected += ha->fw_dump_tmplt_size;
2116
2117 num_entry_hdr = tmplt_hdr->num_of_entries;
2118 ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
2119 __func__, data_ptr);
2120 ql4_printk(KERN_INFO, ha,
2121 "[%s]: no of entry headers in Template: 0x%x\n",
2122 __func__, num_entry_hdr);
2123 ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
2124 __func__, ha->fw_dump_capture_mask);
2125 ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
2126 __func__, ha->fw_dump_size, ha->fw_dump_size);
2127
2128 /* Update current timestamp before taking dump */
2129 now = get_jiffies_64();
2130 timestamp = (u32)(jiffies_to_msecs(now) / 1000);
2131 tmplt_hdr->driver_timestamp = timestamp;
2132
2133 entry_hdr = (struct qla82xx_minidump_entry_hdr *)
2134 (((uint8_t *)ha->fw_dump_tmplt_hdr) +
2135 tmplt_hdr->first_entry_offset);
2136
2137 /* Walk through the entry headers - validate/perform required action */
2138 for (i = 0; i < num_entry_hdr; i++) {
2139 if (data_collected >= ha->fw_dump_size) {
2140 ql4_printk(KERN_INFO, ha,
2141 "Data collected: [0x%x], Total Dump size: [0x%x]\n",
2142 data_collected, ha->fw_dump_size);
2143 return rval;
2144 }
2145
2146 if (!(entry_hdr->d_ctrl.entry_capture_mask &
2147 ha->fw_dump_capture_mask)) {
2148 entry_hdr->d_ctrl.driver_flags |=
2149 QLA82XX_DBG_SKIPPED_FLAG;
2150 goto skip_nxt_entry;
2151 }
2152
2153 DEBUG2(ql4_printk(KERN_INFO, ha,
2154 "Data collected: [0x%x], Dump size left:[0x%x]\n",
2155 data_collected,
2156 (ha->fw_dump_size - data_collected)));
2157
2158 /* Decode the entry type and take required action to capture
2159 * debug data
2160 */
2161 switch (entry_hdr->entry_type) {
2162 case QLA82XX_RDEND:
2163 ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
2164 break;
2165 case QLA82XX_CNTRL:
2166 rval = qla4_8xxx_minidump_process_control(ha,
2167 entry_hdr);
2168 if (rval != QLA_SUCCESS) {
2169 ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
2170 goto md_failed;
2171 }
2172 break;
2173 case QLA82XX_RDCRB:
2174 qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
2175 &data_ptr);
2176 break;
2177 case QLA82XX_RDMEM:
2178 rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
2179 &data_ptr);
2180 if (rval != QLA_SUCCESS) {
2181 ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
2182 goto md_failed;
2183 }
2184 break;
2185 case QLA82XX_BOARD:
2186 case QLA82XX_RDROM:
2187 qla4_8xxx_minidump_process_rdrom(ha, entry_hdr,
2188 &data_ptr);
2189 break;
2190 case QLA82XX_L2DTG:
2191 case QLA82XX_L2ITG:
2192 case QLA82XX_L2DAT:
2193 case QLA82XX_L2INS:
2194 rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
2195 &data_ptr);
2196 if (rval != QLA_SUCCESS) {
2197 ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
2198 goto md_failed;
2199 }
2200 break;
2201 case QLA82XX_L1DAT:
2202 case QLA82XX_L1INS:
2203 qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
2204 &data_ptr);
2205 break;
2206 case QLA82XX_RDOCM:
2207 qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
2208 &data_ptr);
2209 break;
2210 case QLA82XX_RDMUX:
2211 qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
2212 &data_ptr);
2213 break;
2214 case QLA82XX_QUEUE:
2215 qla4_8xxx_minidump_process_queue(ha, entry_hdr,
2216 &data_ptr);
2217 break;
2218 case QLA82XX_RDNOP:
2219 default:
2220 ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
2221 break;
2222 }
2223
2224 data_collected = (uint8_t *)data_ptr -
2225 ((uint8_t *)((uint8_t *)ha->fw_dump +
2226 ha->fw_dump_tmplt_size));
2227 skip_nxt_entry:
2228 /* next entry in the template */
2229 entry_hdr = (struct qla82xx_minidump_entry_hdr *)
2230 (((uint8_t *)entry_hdr) +
2231 entry_hdr->entry_size);
2232 }
2233
2234 if ((data_collected + ha->fw_dump_tmplt_size) != ha->fw_dump_size) {
2235 ql4_printk(KERN_INFO, ha,
2236 "Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
2237 data_collected, ha->fw_dump_size);
2238 goto md_failed;
2239 }
2240
2241 DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
2242 __func__, i));
2243 md_failed:
2244 return rval;
2245 }
2246
2247 /**
2248 * qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
2249 * @ha: pointer to adapter structure
2250 **/
2251 static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
2252 {
2253 char event_string[40];
2254 char *envp[] = { event_string, NULL };
2255
2256 switch (code) {
2257 case QL4_UEVENT_CODE_FW_DUMP:
2258 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
2259 ha->host_no);
2260 break;
2261 default:
2262 /*do nothing*/
2263 break;
2264 }
2265
2266 kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
2267 }
2268
2269 /**
2270 * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
2271 * @ha: pointer to adapter structure
2272 *
2273 * Note: IDC lock must be held upon entry
2274 **/
2275 static int
2276 qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
2277 {
2278 int rval = QLA_ERROR;
2279 int i, timeout;
2280 uint32_t old_count, count;
2281 int need_reset = 0, peg_stuck = 1;
2282
2283 need_reset = qla4_8xxx_need_reset(ha);
2284
2285 old_count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2286
2287 for (i = 0; i < 10; i++) {
2288 timeout = msleep_interruptible(200);
2289 if (timeout) {
2290 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2291 QLA82XX_DEV_FAILED);
2292 return rval;
2293 }
2294
2295 count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2296 if (count != old_count)
2297 peg_stuck = 0;
2298 }
2299
2300 if (need_reset) {
2301 /* We are trying to perform a recovery here. */
2302 if (peg_stuck)
2303 qla4_8xxx_rom_lock_recovery(ha);
2304 goto dev_initialize;
2305 } else {
2306 /* Start of day for this ha context. */
2307 if (peg_stuck) {
2308 /* Either we are the first or recovery in progress. */
2309 qla4_8xxx_rom_lock_recovery(ha);
2310 goto dev_initialize;
2311 } else {
2312 /* Firmware already running. */
2313 rval = QLA_SUCCESS;
2314 goto dev_ready;
2315 }
2316 }
2317
2318 dev_initialize:
2319 /* set to DEV_INITIALIZING */
2320 ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
2321 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
2322
2323 /* Driver that sets device state to initializating sets IDC version */
2324 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
2325
2326 qla4_8xxx_idc_unlock(ha);
2327 if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
2328 !test_and_set_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
2329 if (!qla4_8xxx_collect_md_data(ha)) {
2330 qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
2331 } else {
2332 ql4_printk(KERN_INFO, ha, "Unable to collect minidump\n");
2333 clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
2334 }
2335 }
2336 rval = qla4_8xxx_try_start_fw(ha);
2337 qla4_8xxx_idc_lock(ha);
2338
2339 if (rval != QLA_SUCCESS) {
2340 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
2341 qla4_8xxx_clear_drv_active(ha);
2342 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
2343 return rval;
2344 }
2345
2346 dev_ready:
2347 ql4_printk(KERN_INFO, ha, "HW State: READY\n");
2348 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
2349
2350 return rval;
2351 }
2352
2353 /**
2354 * qla4_8xxx_need_reset_handler - Code to start reset sequence
2355 * @ha: pointer to adapter structure
2356 *
2357 * Note: IDC lock must be held upon entry
2358 **/
2359 static void
2360 qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
2361 {
2362 uint32_t dev_state, drv_state, drv_active;
2363 uint32_t active_mask = 0xFFFFFFFF;
2364 unsigned long reset_timeout;
2365
2366 ql4_printk(KERN_INFO, ha,
2367 "Performing ISP error recovery\n");
2368
2369 if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
2370 qla4_8xxx_idc_unlock(ha);
2371 ha->isp_ops->disable_intrs(ha);
2372 qla4_8xxx_idc_lock(ha);
2373 }
2374
2375 if (!test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
2376 DEBUG2(ql4_printk(KERN_INFO, ha,
2377 "%s(%ld): reset acknowledged\n",
2378 __func__, ha->host_no));
2379 qla4_8xxx_set_rst_ready(ha);
2380 } else {
2381 active_mask = (~(1 << (ha->func_num * 4)));
2382 }
2383
2384 /* wait for 10 seconds for reset ack from all functions */
2385 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
2386
2387 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2388 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2389
2390 ql4_printk(KERN_INFO, ha,
2391 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
2392 __func__, ha->host_no, drv_state, drv_active);
2393
2394 while (drv_state != (drv_active & active_mask)) {
2395 if (time_after_eq(jiffies, reset_timeout)) {
2396 ql4_printk(KERN_INFO, ha,
2397 "%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
2398 DRIVER_NAME, drv_state, drv_active);
2399 break;
2400 }
2401
2402 /*
2403 * When reset_owner times out, check which functions
2404 * acked/did not ack
2405 */
2406 if (test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
2407 ql4_printk(KERN_INFO, ha,
2408 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
2409 __func__, ha->host_no, drv_state,
2410 drv_active);
2411 }
2412 qla4_8xxx_idc_unlock(ha);
2413 msleep(1000);
2414 qla4_8xxx_idc_lock(ha);
2415
2416 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2417 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2418 }
2419
2420 /* Clear RESET OWNER as we are not going to use it any further */
2421 clear_bit(AF_82XX_RST_OWNER, &ha->flags);
2422
2423 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2424 ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
2425 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
2426
2427 /* Force to DEV_COLD unless someone else is starting a reset */
2428 if (dev_state != QLA82XX_DEV_INITIALIZING) {
2429 ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
2430 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
2431 qla4_8xxx_set_rst_ready(ha);
2432 }
2433 }
2434
2435 /**
2436 * qla4_8xxx_need_qsnt_handler - Code to start qsnt
2437 * @ha: pointer to adapter structure
2438 **/
2439 void
2440 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
2441 {
2442 qla4_8xxx_idc_lock(ha);
2443 qla4_8xxx_set_qsnt_ready(ha);
2444 qla4_8xxx_idc_unlock(ha);
2445 }
2446
2447 /**
2448 * qla4_8xxx_device_state_handler - Adapter state machine
2449 * @ha: pointer to host adapter structure.
2450 *
2451 * Note: IDC lock must be UNLOCKED upon entry
2452 **/
2453 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
2454 {
2455 uint32_t dev_state;
2456 int rval = QLA_SUCCESS;
2457 unsigned long dev_init_timeout;
2458
2459 if (!test_bit(AF_INIT_DONE, &ha->flags)) {
2460 qla4_8xxx_idc_lock(ha);
2461 qla4_8xxx_set_drv_active(ha);
2462 qla4_8xxx_idc_unlock(ha);
2463 }
2464
2465 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2466 DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
2467 dev_state, dev_state < MAX_STATES ?
2468 qdev_state[dev_state] : "Unknown"));
2469
2470 /* wait for 30 seconds for device to go ready */
2471 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
2472
2473 qla4_8xxx_idc_lock(ha);
2474 while (1) {
2475
2476 if (time_after_eq(jiffies, dev_init_timeout)) {
2477 ql4_printk(KERN_WARNING, ha,
2478 "%s: Device Init Failed 0x%x = %s\n",
2479 DRIVER_NAME,
2480 dev_state, dev_state < MAX_STATES ?
2481 qdev_state[dev_state] : "Unknown");
2482 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2483 QLA82XX_DEV_FAILED);
2484 }
2485
2486 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2487 ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
2488 dev_state, dev_state < MAX_STATES ?
2489 qdev_state[dev_state] : "Unknown");
2490
2491 /* NOTE: Make sure idc unlocked upon exit of switch statement */
2492 switch (dev_state) {
2493 case QLA82XX_DEV_READY:
2494 goto exit;
2495 case QLA82XX_DEV_COLD:
2496 rval = qla4_8xxx_device_bootstrap(ha);
2497 goto exit;
2498 case QLA82XX_DEV_INITIALIZING:
2499 qla4_8xxx_idc_unlock(ha);
2500 msleep(1000);
2501 qla4_8xxx_idc_lock(ha);
2502 break;
2503 case QLA82XX_DEV_NEED_RESET:
2504 if (!ql4xdontresethba) {
2505 qla4_8xxx_need_reset_handler(ha);
2506 /* Update timeout value after need
2507 * reset handler */
2508 dev_init_timeout = jiffies +
2509 (ha->nx_dev_init_timeout * HZ);
2510 } else {
2511 qla4_8xxx_idc_unlock(ha);
2512 msleep(1000);
2513 qla4_8xxx_idc_lock(ha);
2514 }
2515 break;
2516 case QLA82XX_DEV_NEED_QUIESCENT:
2517 /* idc locked/unlocked in handler */
2518 qla4_8xxx_need_qsnt_handler(ha);
2519 break;
2520 case QLA82XX_DEV_QUIESCENT:
2521 qla4_8xxx_idc_unlock(ha);
2522 msleep(1000);
2523 qla4_8xxx_idc_lock(ha);
2524 break;
2525 case QLA82XX_DEV_FAILED:
2526 qla4_8xxx_idc_unlock(ha);
2527 qla4xxx_dead_adapter_cleanup(ha);
2528 rval = QLA_ERROR;
2529 qla4_8xxx_idc_lock(ha);
2530 goto exit;
2531 default:
2532 qla4_8xxx_idc_unlock(ha);
2533 qla4xxx_dead_adapter_cleanup(ha);
2534 rval = QLA_ERROR;
2535 qla4_8xxx_idc_lock(ha);
2536 goto exit;
2537 }
2538 }
2539 exit:
2540 qla4_8xxx_idc_unlock(ha);
2541 return rval;
2542 }
2543
2544 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
2545 {
2546 int retval;
2547
2548 /* clear the interrupt */
2549 writel(0, &ha->qla4_8xxx_reg->host_int);
2550 readl(&ha->qla4_8xxx_reg->host_int);
2551
2552 retval = qla4_8xxx_device_state_handler(ha);
2553
2554 if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))
2555 retval = qla4xxx_request_irqs(ha);
2556
2557 return retval;
2558 }
2559
2560 /*****************************************************************************/
2561 /* Flash Manipulation Routines */
2562 /*****************************************************************************/
2563
2564 #define OPTROM_BURST_SIZE 0x1000
2565 #define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
2566
2567 #define FARX_DATA_FLAG BIT_31
2568 #define FARX_ACCESS_FLASH_CONF 0x7FFD0000
2569 #define FARX_ACCESS_FLASH_DATA 0x7FF00000
2570
2571 static inline uint32_t
2572 flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
2573 {
2574 return hw->flash_conf_off | faddr;
2575 }
2576
2577 static inline uint32_t
2578 flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
2579 {
2580 return hw->flash_data_off | faddr;
2581 }
2582
2583 static uint32_t *
2584 qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
2585 uint32_t faddr, uint32_t length)
2586 {
2587 uint32_t i;
2588 uint32_t val;
2589 int loops = 0;
2590 while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
2591 udelay(100);
2592 cond_resched();
2593 loops++;
2594 }
2595 if (loops >= 50000) {
2596 ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
2597 return dwptr;
2598 }
2599
2600 /* Dword reads to flash. */
2601 for (i = 0; i < length/4; i++, faddr += 4) {
2602 if (qla4_8xxx_do_rom_fast_read(ha, faddr, &val)) {
2603 ql4_printk(KERN_WARNING, ha,
2604 "Do ROM fast read failed\n");
2605 goto done_read;
2606 }
2607 dwptr[i] = __constant_cpu_to_le32(val);
2608 }
2609
2610 done_read:
2611 qla4_8xxx_rom_unlock(ha);
2612 return dwptr;
2613 }
2614
2615 /**
2616 * Address and length are byte address
2617 **/
2618 static uint8_t *
2619 qla4_8xxx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
2620 uint32_t offset, uint32_t length)
2621 {
2622 qla4_8xxx_read_flash_data(ha, (uint32_t *)buf, offset, length);
2623 return buf;
2624 }
2625
2626 static int
2627 qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
2628 {
2629 const char *loc, *locations[] = { "DEF", "PCI" };
2630
2631 /*
2632 * FLT-location structure resides after the last PCI region.
2633 */
2634
2635 /* Begin with sane defaults. */
2636 loc = locations[0];
2637 *start = FA_FLASH_LAYOUT_ADDR_82;
2638
2639 DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
2640 return QLA_SUCCESS;
2641 }
2642
2643 static void
2644 qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
2645 {
2646 const char *loc, *locations[] = { "DEF", "FLT" };
2647 uint16_t *wptr;
2648 uint16_t cnt, chksum;
2649 uint32_t start;
2650 struct qla_flt_header *flt;
2651 struct qla_flt_region *region;
2652 struct ql82xx_hw_data *hw = &ha->hw;
2653
2654 hw->flt_region_flt = flt_addr;
2655 wptr = (uint16_t *)ha->request_ring;
2656 flt = (struct qla_flt_header *)ha->request_ring;
2657 region = (struct qla_flt_region *)&flt[1];
2658 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2659 flt_addr << 2, OPTROM_BURST_SIZE);
2660 if (*wptr == __constant_cpu_to_le16(0xffff))
2661 goto no_flash_data;
2662 if (flt->version != __constant_cpu_to_le16(1)) {
2663 DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
2664 "version=0x%x length=0x%x checksum=0x%x.\n",
2665 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
2666 le16_to_cpu(flt->checksum)));
2667 goto no_flash_data;
2668 }
2669
2670 cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
2671 for (chksum = 0; cnt; cnt--)
2672 chksum += le16_to_cpu(*wptr++);
2673 if (chksum) {
2674 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
2675 "version=0x%x length=0x%x checksum=0x%x.\n",
2676 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
2677 chksum));
2678 goto no_flash_data;
2679 }
2680
2681 loc = locations[1];
2682 cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
2683 for ( ; cnt; cnt--, region++) {
2684 /* Store addresses as DWORD offsets. */
2685 start = le32_to_cpu(region->start) >> 2;
2686
2687 DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
2688 "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
2689 le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
2690
2691 switch (le32_to_cpu(region->code) & 0xff) {
2692 case FLT_REG_FDT:
2693 hw->flt_region_fdt = start;
2694 break;
2695 case FLT_REG_BOOT_CODE_82:
2696 hw->flt_region_boot = start;
2697 break;
2698 case FLT_REG_FW_82:
2699 case FLT_REG_FW_82_1:
2700 hw->flt_region_fw = start;
2701 break;
2702 case FLT_REG_BOOTLOAD_82:
2703 hw->flt_region_bootload = start;
2704 break;
2705 case FLT_REG_ISCSI_PARAM:
2706 hw->flt_iscsi_param = start;
2707 break;
2708 case FLT_REG_ISCSI_CHAP:
2709 hw->flt_region_chap = start;
2710 hw->flt_chap_size = le32_to_cpu(region->size);
2711 break;
2712 }
2713 }
2714 goto done;
2715
2716 no_flash_data:
2717 /* Use hardcoded defaults. */
2718 loc = locations[0];
2719
2720 hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82;
2721 hw->flt_region_boot = FA_BOOT_CODE_ADDR_82;
2722 hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
2723 hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
2724 hw->flt_region_chap = FA_FLASH_ISCSI_CHAP;
2725 hw->flt_chap_size = FA_FLASH_CHAP_SIZE;
2726
2727 done:
2728 DEBUG2(ql4_printk(KERN_INFO, ha, "FLT[%s]: flt=0x%x fdt=0x%x "
2729 "boot=0x%x bootload=0x%x fw=0x%x\n", loc, hw->flt_region_flt,
2730 hw->flt_region_fdt, hw->flt_region_boot, hw->flt_region_bootload,
2731 hw->flt_region_fw));
2732 }
2733
2734 static void
2735 qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha)
2736 {
2737 #define FLASH_BLK_SIZE_4K 0x1000
2738 #define FLASH_BLK_SIZE_32K 0x8000
2739 #define FLASH_BLK_SIZE_64K 0x10000
2740 const char *loc, *locations[] = { "MID", "FDT" };
2741 uint16_t cnt, chksum;
2742 uint16_t *wptr;
2743 struct qla_fdt_layout *fdt;
2744 uint16_t mid = 0;
2745 uint16_t fid = 0;
2746 struct ql82xx_hw_data *hw = &ha->hw;
2747
2748 hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2749 hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
2750
2751 wptr = (uint16_t *)ha->request_ring;
2752 fdt = (struct qla_fdt_layout *)ha->request_ring;
2753 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2754 hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
2755
2756 if (*wptr == __constant_cpu_to_le16(0xffff))
2757 goto no_flash_data;
2758
2759 if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
2760 fdt->sig[3] != 'D')
2761 goto no_flash_data;
2762
2763 for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
2764 cnt++)
2765 chksum += le16_to_cpu(*wptr++);
2766
2767 if (chksum) {
2768 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
2769 "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
2770 le16_to_cpu(fdt->version)));
2771 goto no_flash_data;
2772 }
2773
2774 loc = locations[1];
2775 mid = le16_to_cpu(fdt->man_id);
2776 fid = le16_to_cpu(fdt->id);
2777 hw->fdt_wrt_disable = fdt->wrt_disable_bits;
2778 hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
2779 hw->fdt_block_size = le32_to_cpu(fdt->block_size);
2780
2781 if (fdt->unprotect_sec_cmd) {
2782 hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
2783 fdt->unprotect_sec_cmd);
2784 hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
2785 flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
2786 flash_conf_addr(hw, 0x0336);
2787 }
2788 goto done;
2789
2790 no_flash_data:
2791 loc = locations[0];
2792 hw->fdt_block_size = FLASH_BLK_SIZE_64K;
2793 done:
2794 DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
2795 "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
2796 hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
2797 hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
2798 hw->fdt_block_size));
2799 }
2800
2801 static void
2802 qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
2803 {
2804 #define QLA82XX_IDC_PARAM_ADDR 0x003e885c
2805 uint32_t *wptr;
2806
2807 if (!is_qla8022(ha))
2808 return;
2809 wptr = (uint32_t *)ha->request_ring;
2810 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2811 QLA82XX_IDC_PARAM_ADDR , 8);
2812
2813 if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
2814 ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
2815 ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
2816 } else {
2817 ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
2818 ha->nx_reset_timeout = le32_to_cpu(*wptr);
2819 }
2820
2821 DEBUG2(ql4_printk(KERN_DEBUG, ha,
2822 "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
2823 DEBUG2(ql4_printk(KERN_DEBUG, ha,
2824 "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
2825 return;
2826 }
2827
2828 int
2829 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
2830 {
2831 int ret;
2832 uint32_t flt_addr;
2833
2834 ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
2835 if (ret != QLA_SUCCESS)
2836 return ret;
2837
2838 qla4_8xxx_get_flt_info(ha, flt_addr);
2839 qla4_8xxx_get_fdt_info(ha);
2840 qla4_8xxx_get_idc_param(ha);
2841
2842 return QLA_SUCCESS;
2843 }
2844
2845 /**
2846 * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
2847 * @ha: pointer to host adapter structure.
2848 *
2849 * Remarks:
2850 * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
2851 * not be available after successful return. Driver must cleanup potential
2852 * outstanding I/O's after calling this funcion.
2853 **/
2854 int
2855 qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
2856 {
2857 int status;
2858 uint32_t mbox_cmd[MBOX_REG_COUNT];
2859 uint32_t mbox_sts[MBOX_REG_COUNT];
2860
2861 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2862 memset(&mbox_sts, 0, sizeof(mbox_sts));
2863
2864 mbox_cmd[0] = MBOX_CMD_STOP_FW;
2865 status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
2866 &mbox_cmd[0], &mbox_sts[0]);
2867
2868 DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
2869 __func__, status));
2870 return status;
2871 }
2872
2873 /**
2874 * qla4_8xxx_isp_reset - Resets ISP and aborts all outstanding commands.
2875 * @ha: pointer to host adapter structure.
2876 **/
2877 int
2878 qla4_8xxx_isp_reset(struct scsi_qla_host *ha)
2879 {
2880 int rval;
2881 uint32_t dev_state;
2882
2883 qla4_8xxx_idc_lock(ha);
2884 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2885
2886 if (dev_state == QLA82XX_DEV_READY) {
2887 ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
2888 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2889 QLA82XX_DEV_NEED_RESET);
2890 set_bit(AF_82XX_RST_OWNER, &ha->flags);
2891 } else
2892 ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
2893
2894 qla4_8xxx_idc_unlock(ha);
2895
2896 rval = qla4_8xxx_device_state_handler(ha);
2897
2898 qla4_8xxx_idc_lock(ha);
2899 qla4_8xxx_clear_rst_ready(ha);
2900 qla4_8xxx_idc_unlock(ha);
2901
2902 if (rval == QLA_SUCCESS) {
2903 ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_8xxx_isp_reset\n");
2904 clear_bit(AF_FW_RECOVERY, &ha->flags);
2905 }
2906
2907 return rval;
2908 }
2909
2910 /**
2911 * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
2912 * @ha: pointer to host adapter structure.
2913 *
2914 **/
2915 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
2916 {
2917 uint32_t mbox_cmd[MBOX_REG_COUNT];
2918 uint32_t mbox_sts[MBOX_REG_COUNT];
2919 struct mbx_sys_info *sys_info;
2920 dma_addr_t sys_info_dma;
2921 int status = QLA_ERROR;
2922
2923 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
2924 &sys_info_dma, GFP_KERNEL);
2925 if (sys_info == NULL) {
2926 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
2927 ha->host_no, __func__));
2928 return status;
2929 }
2930
2931 memset(sys_info, 0, sizeof(*sys_info));
2932 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2933 memset(&mbox_sts, 0, sizeof(mbox_sts));
2934
2935 mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
2936 mbox_cmd[1] = LSDW(sys_info_dma);
2937 mbox_cmd[2] = MSDW(sys_info_dma);
2938 mbox_cmd[4] = sizeof(*sys_info);
2939
2940 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
2941 &mbox_sts[0]) != QLA_SUCCESS) {
2942 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
2943 ha->host_no, __func__));
2944 goto exit_validate_mac82;
2945 }
2946
2947 /* Make sure we receive the minimum required data to cache internally */
2948 if (mbox_sts[4] < offsetof(struct mbx_sys_info, reserved)) {
2949 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
2950 " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
2951 goto exit_validate_mac82;
2952
2953 }
2954
2955 /* Save M.A.C. address & serial_number */
2956 ha->port_num = sys_info->port_num;
2957 memcpy(ha->my_mac, &sys_info->mac_addr[0],
2958 min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
2959 memcpy(ha->serial_number, &sys_info->serial_number,
2960 min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
2961 memcpy(ha->model_name, &sys_info->board_id_str,
2962 min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
2963 ha->phy_port_cnt = sys_info->phys_port_cnt;
2964 ha->phy_port_num = sys_info->port_num;
2965 ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
2966
2967 DEBUG2(printk("scsi%ld: %s: "
2968 "mac %02x:%02x:%02x:%02x:%02x:%02x "
2969 "serial %s\n", ha->host_no, __func__,
2970 ha->my_mac[0], ha->my_mac[1], ha->my_mac[2],
2971 ha->my_mac[3], ha->my_mac[4], ha->my_mac[5],
2972 ha->serial_number));
2973
2974 status = QLA_SUCCESS;
2975
2976 exit_validate_mac82:
2977 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
2978 sys_info_dma);
2979 return status;
2980 }
2981
2982 /* Interrupt handling helpers. */
2983
2984 static int
2985 qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
2986 {
2987 uint32_t mbox_cmd[MBOX_REG_COUNT];
2988 uint32_t mbox_sts[MBOX_REG_COUNT];
2989
2990 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
2991
2992 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2993 memset(&mbox_sts, 0, sizeof(mbox_sts));
2994 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
2995 mbox_cmd[1] = INTR_ENABLE;
2996 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2997 &mbox_sts[0]) != QLA_SUCCESS) {
2998 DEBUG2(ql4_printk(KERN_INFO, ha,
2999 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
3000 __func__, mbox_sts[0]));
3001 return QLA_ERROR;
3002 }
3003 return QLA_SUCCESS;
3004 }
3005
3006 static int
3007 qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
3008 {
3009 uint32_t mbox_cmd[MBOX_REG_COUNT];
3010 uint32_t mbox_sts[MBOX_REG_COUNT];
3011
3012 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
3013
3014 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
3015 memset(&mbox_sts, 0, sizeof(mbox_sts));
3016 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
3017 mbox_cmd[1] = INTR_DISABLE;
3018 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
3019 &mbox_sts[0]) != QLA_SUCCESS) {
3020 DEBUG2(ql4_printk(KERN_INFO, ha,
3021 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
3022 __func__, mbox_sts[0]));
3023 return QLA_ERROR;
3024 }
3025
3026 return QLA_SUCCESS;
3027 }
3028
3029 void
3030 qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
3031 {
3032 qla4_8xxx_mbx_intr_enable(ha);
3033
3034 spin_lock_irq(&ha->hardware_lock);
3035 /* BIT 10 - reset */
3036 qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
3037 spin_unlock_irq(&ha->hardware_lock);
3038 set_bit(AF_INTERRUPTS_ON, &ha->flags);
3039 }
3040
3041 void
3042 qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
3043 {
3044 if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
3045 qla4_8xxx_mbx_intr_disable(ha);
3046
3047 spin_lock_irq(&ha->hardware_lock);
3048 /* BIT 10 - set */
3049 qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
3050 spin_unlock_irq(&ha->hardware_lock);
3051 }
3052
3053 struct ql4_init_msix_entry {
3054 uint16_t entry;
3055 uint16_t index;
3056 const char *name;
3057 irq_handler_t handler;
3058 };
3059
3060 static struct ql4_init_msix_entry qla4_8xxx_msix_entries[QLA_MSIX_ENTRIES] = {
3061 { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT,
3062 "qla4xxx (default)",
3063 (irq_handler_t)qla4_8xxx_default_intr_handler },
3064 { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q,
3065 "qla4xxx (rsp_q)", (irq_handler_t)qla4_8xxx_msix_rsp_q },
3066 };
3067
3068 void
3069 qla4_8xxx_disable_msix(struct scsi_qla_host *ha)
3070 {
3071 int i;
3072 struct ql4_msix_entry *qentry;
3073
3074 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
3075 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
3076 if (qentry->have_irq) {
3077 free_irq(qentry->msix_vector, ha);
3078 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
3079 __func__, qla4_8xxx_msix_entries[i].name));
3080 }
3081 }
3082 pci_disable_msix(ha->pdev);
3083 clear_bit(AF_MSIX_ENABLED, &ha->flags);
3084 }
3085
3086 int
3087 qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
3088 {
3089 int i, ret;
3090 struct msix_entry entries[QLA_MSIX_ENTRIES];
3091 struct ql4_msix_entry *qentry;
3092
3093 for (i = 0; i < QLA_MSIX_ENTRIES; i++)
3094 entries[i].entry = qla4_8xxx_msix_entries[i].entry;
3095
3096 ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
3097 if (ret) {
3098 ql4_printk(KERN_WARNING, ha,
3099 "MSI-X: Failed to enable support -- %d/%d\n",
3100 QLA_MSIX_ENTRIES, ret);
3101 goto msix_out;
3102 }
3103 set_bit(AF_MSIX_ENABLED, &ha->flags);
3104
3105 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
3106 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
3107 qentry->msix_vector = entries[i].vector;
3108 qentry->msix_entry = entries[i].entry;
3109 qentry->have_irq = 0;
3110 ret = request_irq(qentry->msix_vector,
3111 qla4_8xxx_msix_entries[i].handler, 0,
3112 qla4_8xxx_msix_entries[i].name, ha);
3113 if (ret) {
3114 ql4_printk(KERN_WARNING, ha,
3115 "MSI-X: Unable to register handler -- %x/%d.\n",
3116 qla4_8xxx_msix_entries[i].index, ret);
3117 qla4_8xxx_disable_msix(ha);
3118 goto msix_out;
3119 }
3120 qentry->have_irq = 1;
3121 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
3122 __func__, qla4_8xxx_msix_entries[i].name));
3123 }
3124 msix_out:
3125 return ret;
3126 }
Linux ARM platform port for MOXA ART SoC