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[SCSI] qla4xxx: Updated the Copyright header
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / qla4xxx / ql4_nx.c
blob3d5ef2df4134b84763a7f671fc630438844e2810
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 "ql4_def.h"
11 #include "ql4_glbl.h"
12
13 #define MASK(n) DMA_BIT_MASK(n)
14 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
15 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
16 #define MS_WIN(addr) (addr & 0x0ffc0000)
17 #define QLA82XX_PCI_MN_2M (0)
18 #define QLA82XX_PCI_MS_2M (0x80000)
19 #define QLA82XX_PCI_OCM0_2M (0xc0000)
20 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
21 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
22
23 /* CRB window related */
24 #define CRB_BLK(off) ((off >> 20) & 0x3f)
25 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
26 #define CRB_WINDOW_2M (0x130060)
27 #define CRB_HI(off) ((qla4_8xxx_crb_hub_agt[CRB_BLK(off)] << 20) | \
28 ((off) & 0xf0000))
29 #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
30 #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
31 #define CRB_INDIRECT_2M (0x1e0000UL)
32
33 static inline void __iomem *
34 qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off)
35 {
36 if ((off < ha->first_page_group_end) &&
37 (off >= ha->first_page_group_start))
38 return (void __iomem *)(ha->nx_pcibase + off);
39
40 return NULL;
41 }
42
43 #define MAX_CRB_XFORM 60
44 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
45 static int qla4_8xxx_crb_table_initialized;
46
47 #define qla4_8xxx_crb_addr_transform(name) \
48 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
49 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
50 static void
51 qla4_8xxx_crb_addr_transform_setup(void)
52 {
53 qla4_8xxx_crb_addr_transform(XDMA);
54 qla4_8xxx_crb_addr_transform(TIMR);
55 qla4_8xxx_crb_addr_transform(SRE);
56 qla4_8xxx_crb_addr_transform(SQN3);
57 qla4_8xxx_crb_addr_transform(SQN2);
58 qla4_8xxx_crb_addr_transform(SQN1);
59 qla4_8xxx_crb_addr_transform(SQN0);
60 qla4_8xxx_crb_addr_transform(SQS3);
61 qla4_8xxx_crb_addr_transform(SQS2);
62 qla4_8xxx_crb_addr_transform(SQS1);
63 qla4_8xxx_crb_addr_transform(SQS0);
64 qla4_8xxx_crb_addr_transform(RPMX7);
65 qla4_8xxx_crb_addr_transform(RPMX6);
66 qla4_8xxx_crb_addr_transform(RPMX5);
67 qla4_8xxx_crb_addr_transform(RPMX4);
68 qla4_8xxx_crb_addr_transform(RPMX3);
69 qla4_8xxx_crb_addr_transform(RPMX2);
70 qla4_8xxx_crb_addr_transform(RPMX1);
71 qla4_8xxx_crb_addr_transform(RPMX0);
72 qla4_8xxx_crb_addr_transform(ROMUSB);
73 qla4_8xxx_crb_addr_transform(SN);
74 qla4_8xxx_crb_addr_transform(QMN);
75 qla4_8xxx_crb_addr_transform(QMS);
76 qla4_8xxx_crb_addr_transform(PGNI);
77 qla4_8xxx_crb_addr_transform(PGND);
78 qla4_8xxx_crb_addr_transform(PGN3);
79 qla4_8xxx_crb_addr_transform(PGN2);
80 qla4_8xxx_crb_addr_transform(PGN1);
81 qla4_8xxx_crb_addr_transform(PGN0);
82 qla4_8xxx_crb_addr_transform(PGSI);
83 qla4_8xxx_crb_addr_transform(PGSD);
84 qla4_8xxx_crb_addr_transform(PGS3);
85 qla4_8xxx_crb_addr_transform(PGS2);
86 qla4_8xxx_crb_addr_transform(PGS1);
87 qla4_8xxx_crb_addr_transform(PGS0);
88 qla4_8xxx_crb_addr_transform(PS);
89 qla4_8xxx_crb_addr_transform(PH);
90 qla4_8xxx_crb_addr_transform(NIU);
91 qla4_8xxx_crb_addr_transform(I2Q);
92 qla4_8xxx_crb_addr_transform(EG);
93 qla4_8xxx_crb_addr_transform(MN);
94 qla4_8xxx_crb_addr_transform(MS);
95 qla4_8xxx_crb_addr_transform(CAS2);
96 qla4_8xxx_crb_addr_transform(CAS1);
97 qla4_8xxx_crb_addr_transform(CAS0);
98 qla4_8xxx_crb_addr_transform(CAM);
99 qla4_8xxx_crb_addr_transform(C2C1);
100 qla4_8xxx_crb_addr_transform(C2C0);
101 qla4_8xxx_crb_addr_transform(SMB);
102 qla4_8xxx_crb_addr_transform(OCM0);
103 qla4_8xxx_crb_addr_transform(I2C0);
104
105 qla4_8xxx_crb_table_initialized = 1;
106 }
107
108 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
109 {{{0, 0, 0, 0} } }, /* 0: PCI */
110 {{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */
111 {1, 0x0110000, 0x0120000, 0x130000},
112 {1, 0x0120000, 0x0122000, 0x124000},
113 {1, 0x0130000, 0x0132000, 0x126000},
114 {1, 0x0140000, 0x0142000, 0x128000},
115 {1, 0x0150000, 0x0152000, 0x12a000},
116 {1, 0x0160000, 0x0170000, 0x110000},
117 {1, 0x0170000, 0x0172000, 0x12e000},
118 {0, 0x0000000, 0x0000000, 0x000000},
119 {0, 0x0000000, 0x0000000, 0x000000},
120 {0, 0x0000000, 0x0000000, 0x000000},
121 {0, 0x0000000, 0x0000000, 0x000000},
122 {0, 0x0000000, 0x0000000, 0x000000},
123 {0, 0x0000000, 0x0000000, 0x000000},
124 {1, 0x01e0000, 0x01e0800, 0x122000},
125 {0, 0x0000000, 0x0000000, 0x000000} } },
126 {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
127 {{{0, 0, 0, 0} } }, /* 3: */
128 {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
129 {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */
130 {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */
131 {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */
132 {{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */
133 {0, 0x0000000, 0x0000000, 0x000000},
134 {0, 0x0000000, 0x0000000, 0x000000},
135 {0, 0x0000000, 0x0000000, 0x000000},
136 {0, 0x0000000, 0x0000000, 0x000000},
137 {0, 0x0000000, 0x0000000, 0x000000},
138 {0, 0x0000000, 0x0000000, 0x000000},
139 {0, 0x0000000, 0x0000000, 0x000000},
140 {0, 0x0000000, 0x0000000, 0x000000},
141 {0, 0x0000000, 0x0000000, 0x000000},
142 {0, 0x0000000, 0x0000000, 0x000000},
143 {0, 0x0000000, 0x0000000, 0x000000},
144 {0, 0x0000000, 0x0000000, 0x000000},
145 {0, 0x0000000, 0x0000000, 0x000000},
146 {0, 0x0000000, 0x0000000, 0x000000},
147 {1, 0x08f0000, 0x08f2000, 0x172000} } },
148 {{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/
149 {0, 0x0000000, 0x0000000, 0x000000},
150 {0, 0x0000000, 0x0000000, 0x000000},
151 {0, 0x0000000, 0x0000000, 0x000000},
152 {0, 0x0000000, 0x0000000, 0x000000},
153 {0, 0x0000000, 0x0000000, 0x000000},
154 {0, 0x0000000, 0x0000000, 0x000000},
155 {0, 0x0000000, 0x0000000, 0x000000},
156 {0, 0x0000000, 0x0000000, 0x000000},
157 {0, 0x0000000, 0x0000000, 0x000000},
158 {0, 0x0000000, 0x0000000, 0x000000},
159 {0, 0x0000000, 0x0000000, 0x000000},
160 {0, 0x0000000, 0x0000000, 0x000000},
161 {0, 0x0000000, 0x0000000, 0x000000},
162 {0, 0x0000000, 0x0000000, 0x000000},
163 {1, 0x09f0000, 0x09f2000, 0x176000} } },
164 {{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/
165 {0, 0x0000000, 0x0000000, 0x000000},
166 {0, 0x0000000, 0x0000000, 0x000000},
167 {0, 0x0000000, 0x0000000, 0x000000},
168 {0, 0x0000000, 0x0000000, 0x000000},
169 {0, 0x0000000, 0x0000000, 0x000000},
170 {0, 0x0000000, 0x0000000, 0x000000},
171 {0, 0x0000000, 0x0000000, 0x000000},
172 {0, 0x0000000, 0x0000000, 0x000000},
173 {0, 0x0000000, 0x0000000, 0x000000},
174 {0, 0x0000000, 0x0000000, 0x000000},
175 {0, 0x0000000, 0x0000000, 0x000000},
176 {0, 0x0000000, 0x0000000, 0x000000},
177 {0, 0x0000000, 0x0000000, 0x000000},
178 {0, 0x0000000, 0x0000000, 0x000000},
179 {1, 0x0af0000, 0x0af2000, 0x17a000} } },
180 {{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/
181 {0, 0x0000000, 0x0000000, 0x000000},
182 {0, 0x0000000, 0x0000000, 0x000000},
183 {0, 0x0000000, 0x0000000, 0x000000},
184 {0, 0x0000000, 0x0000000, 0x000000},
185 {0, 0x0000000, 0x0000000, 0x000000},
186 {0, 0x0000000, 0x0000000, 0x000000},
187 {0, 0x0000000, 0x0000000, 0x000000},
188 {0, 0x0000000, 0x0000000, 0x000000},
189 {0, 0x0000000, 0x0000000, 0x000000},
190 {0, 0x0000000, 0x0000000, 0x000000},
191 {0, 0x0000000, 0x0000000, 0x000000},
192 {0, 0x0000000, 0x0000000, 0x000000},
193 {0, 0x0000000, 0x0000000, 0x000000},
194 {0, 0x0000000, 0x0000000, 0x000000},
195 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
196 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
197 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
198 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
199 {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
200 {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
201 {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
202 {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
203 {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
204 {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
205 {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
206 {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
207 {{{0, 0, 0, 0} } }, /* 23: */
208 {{{0, 0, 0, 0} } }, /* 24: */
209 {{{0, 0, 0, 0} } }, /* 25: */
210 {{{0, 0, 0, 0} } }, /* 26: */
211 {{{0, 0, 0, 0} } }, /* 27: */
212 {{{0, 0, 0, 0} } }, /* 28: */
213 {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
214 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
215 {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
216 {{{0} } }, /* 32: PCI */
217 {{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */
218 {1, 0x2110000, 0x2120000, 0x130000},
219 {1, 0x2120000, 0x2122000, 0x124000},
220 {1, 0x2130000, 0x2132000, 0x126000},
221 {1, 0x2140000, 0x2142000, 0x128000},
222 {1, 0x2150000, 0x2152000, 0x12a000},
223 {1, 0x2160000, 0x2170000, 0x110000},
224 {1, 0x2170000, 0x2172000, 0x12e000},
225 {0, 0x0000000, 0x0000000, 0x000000},
226 {0, 0x0000000, 0x0000000, 0x000000},
227 {0, 0x0000000, 0x0000000, 0x000000},
228 {0, 0x0000000, 0x0000000, 0x000000},
229 {0, 0x0000000, 0x0000000, 0x000000},
230 {0, 0x0000000, 0x0000000, 0x000000},
231 {0, 0x0000000, 0x0000000, 0x000000},
232 {0, 0x0000000, 0x0000000, 0x000000} } },
233 {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
234 {{{0} } }, /* 35: */
235 {{{0} } }, /* 36: */
236 {{{0} } }, /* 37: */
237 {{{0} } }, /* 38: */
238 {{{0} } }, /* 39: */
239 {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
240 {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
241 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
242 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
243 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
244 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
245 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
246 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
247 {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
248 {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
249 {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
250 {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
251 {{{0} } }, /* 52: */
252 {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
253 {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
254 {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
255 {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
256 {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
257 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
258 {{{0} } }, /* 59: I2C0 */
259 {{{0} } }, /* 60: I2C1 */
260 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
261 {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
262 {{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */
263 };
264
265 /*
266 * top 12 bits of crb internal address (hub, agent)
267 */
268 static unsigned qla4_8xxx_crb_hub_agt[64] = {
269 0,
270 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
271 QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
272 QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
273 0,
274 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
275 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
276 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
277 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
278 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
279 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
280 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
281 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
282 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
283 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
284 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
285 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
286 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
287 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
288 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
290 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
291 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
292 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
293 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
294 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
295 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
296 0,
297 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
298 QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
299 0,
300 QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
301 0,
302 QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
303 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
304 0,
305 0,
306 0,
307 0,
308 0,
309 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
310 0,
311 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
312 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
313 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
314 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
315 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
316 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
317 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
318 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
319 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
320 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
321 0,
322 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
323 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
324 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
325 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
326 0,
327 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
328 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
329 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
330 0,
331 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
332 0,
333 };
334
335 /* Device states */
336 static char *qdev_state[] = {
337 "Unknown",
338 "Cold",
339 "Initializing",
340 "Ready",
341 "Need Reset",
342 "Need Quiescent",
343 "Failed",
344 "Quiescent",
345 };
346
347 /*
348 * In: 'off' is offset from CRB space in 128M pci map
349 * Out: 'off' is 2M pci map addr
350 * side effect: lock crb window
351 */
352 static void
353 qla4_8xxx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
354 {
355 u32 win_read;
356
357 ha->crb_win = CRB_HI(*off);
358 writel(ha->crb_win,
359 (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
360
361 /* Read back value to make sure write has gone through before trying
362 * to use it. */
363 win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
364 if (win_read != ha->crb_win) {
365 DEBUG2(ql4_printk(KERN_INFO, ha,
366 "%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
367 " off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
368 }
369 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
370 }
371
372 void
373 qla4_8xxx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
374 {
375 unsigned long flags = 0;
376 int rv;
377
378 rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
379
380 BUG_ON(rv == -1);
381
382 if (rv == 1) {
383 write_lock_irqsave(&ha->hw_lock, flags);
384 qla4_8xxx_crb_win_lock(ha);
385 qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
386 }
387
388 writel(data, (void __iomem *)off);
389
390 if (rv == 1) {
391 qla4_8xxx_crb_win_unlock(ha);
392 write_unlock_irqrestore(&ha->hw_lock, flags);
393 }
394 }
395
396 int
397 qla4_8xxx_rd_32(struct scsi_qla_host *ha, ulong off)
398 {
399 unsigned long flags = 0;
400 int rv;
401 u32 data;
402
403 rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
404
405 BUG_ON(rv == -1);
406
407 if (rv == 1) {
408 write_lock_irqsave(&ha->hw_lock, flags);
409 qla4_8xxx_crb_win_lock(ha);
410 qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
411 }
412 data = readl((void __iomem *)off);
413
414 if (rv == 1) {
415 qla4_8xxx_crb_win_unlock(ha);
416 write_unlock_irqrestore(&ha->hw_lock, flags);
417 }
418 return data;
419 }
420
421 #define CRB_WIN_LOCK_TIMEOUT 100000000
422
423 int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha)
424 {
425 int i;
426 int done = 0, timeout = 0;
427
428 while (!done) {
429 /* acquire semaphore3 from PCI HW block */
430 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
431 if (done == 1)
432 break;
433 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
434 return -1;
435
436 timeout++;
437
438 /* Yield CPU */
439 if (!in_interrupt())
440 schedule();
441 else {
442 for (i = 0; i < 20; i++)
443 cpu_relax(); /*This a nop instr on i386*/
444 }
445 }
446 qla4_8xxx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
447 return 0;
448 }
449
450 void qla4_8xxx_crb_win_unlock(struct scsi_qla_host *ha)
451 {
452 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
453 }
454
455 #define IDC_LOCK_TIMEOUT 100000000
456
457 /**
458 * qla4_8xxx_idc_lock - hw_lock
459 * @ha: pointer to adapter structure
460 *
461 * General purpose lock used to synchronize access to
462 * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
463 **/
464 int qla4_8xxx_idc_lock(struct scsi_qla_host *ha)
465 {
466 int i;
467 int done = 0, timeout = 0;
468
469 while (!done) {
470 /* acquire semaphore5 from PCI HW block */
471 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
472 if (done == 1)
473 break;
474 if (timeout >= IDC_LOCK_TIMEOUT)
475 return -1;
476
477 timeout++;
478
479 /* Yield CPU */
480 if (!in_interrupt())
481 schedule();
482 else {
483 for (i = 0; i < 20; i++)
484 cpu_relax(); /*This a nop instr on i386*/
485 }
486 }
487 return 0;
488 }
489
490 void qla4_8xxx_idc_unlock(struct scsi_qla_host *ha)
491 {
492 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
493 }
494
495 int
496 qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
497 {
498 struct crb_128M_2M_sub_block_map *m;
499
500 if (*off >= QLA82XX_CRB_MAX)
501 return -1;
502
503 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
504 *off = (*off - QLA82XX_PCI_CAMQM) +
505 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
506 return 0;
507 }
508
509 if (*off < QLA82XX_PCI_CRBSPACE)
510 return -1;
511
512 *off -= QLA82XX_PCI_CRBSPACE;
513 /*
514 * Try direct map
515 */
516
517 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
518
519 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
520 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
521 return 0;
522 }
523
524 /*
525 * Not in direct map, use crb window
526 */
527 return 1;
528 }
529
530 /* PCI Windowing for DDR regions. */
531 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
532 (((addr) <= (high)) && ((addr) >= (low)))
533
534 /*
535 * check memory access boundary.
536 * used by test agent. support ddr access only for now
537 */
538 static unsigned long
539 qla4_8xxx_pci_mem_bound_check(struct scsi_qla_host *ha,
540 unsigned long long addr, int size)
541 {
542 if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
543 QLA82XX_ADDR_DDR_NET_MAX) ||
544 !QLA82XX_ADDR_IN_RANGE(addr + size - 1,
545 QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) ||
546 ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
547 return 0;
548 }
549 return 1;
550 }
551
552 static int qla4_8xxx_pci_set_window_warning_count;
553
554 static unsigned long
555 qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
556 {
557 int window;
558 u32 win_read;
559
560 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
561 QLA82XX_ADDR_DDR_NET_MAX)) {
562 /* DDR network side */
563 window = MN_WIN(addr);
564 ha->ddr_mn_window = window;
565 qla4_8xxx_wr_32(ha, ha->mn_win_crb |
566 QLA82XX_PCI_CRBSPACE, window);
567 win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
568 QLA82XX_PCI_CRBSPACE);
569 if ((win_read << 17) != window) {
570 ql4_printk(KERN_WARNING, ha,
571 "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
572 __func__, window, win_read);
573 }
574 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
575 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
576 QLA82XX_ADDR_OCM0_MAX)) {
577 unsigned int temp1;
578 /* if bits 19:18&17:11 are on */
579 if ((addr & 0x00ff800) == 0xff800) {
580 printk("%s: QM access not handled.\n", __func__);
581 addr = -1UL;
582 }
583
584 window = OCM_WIN(addr);
585 ha->ddr_mn_window = window;
586 qla4_8xxx_wr_32(ha, ha->mn_win_crb |
587 QLA82XX_PCI_CRBSPACE, window);
588 win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
589 QLA82XX_PCI_CRBSPACE);
590 temp1 = ((window & 0x1FF) << 7) |
591 ((window & 0x0FFFE0000) >> 17);
592 if (win_read != temp1) {
593 printk("%s: Written OCMwin (0x%x) != Read"
594 " OCMwin (0x%x)\n", __func__, temp1, win_read);
595 }
596 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
597
598 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
599 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
600 /* QDR network side */
601 window = MS_WIN(addr);
602 ha->qdr_sn_window = window;
603 qla4_8xxx_wr_32(ha, ha->ms_win_crb |
604 QLA82XX_PCI_CRBSPACE, window);
605 win_read = qla4_8xxx_rd_32(ha,
606 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
607 if (win_read != window) {
608 printk("%s: Written MSwin (0x%x) != Read "
609 "MSwin (0x%x)\n", __func__, window, win_read);
610 }
611 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
612
613 } else {
614 /*
615 * peg gdb frequently accesses memory that doesn't exist,
616 * this limits the chit chat so debugging isn't slowed down.
617 */
618 if ((qla4_8xxx_pci_set_window_warning_count++ < 8) ||
619 (qla4_8xxx_pci_set_window_warning_count%64 == 0)) {
620 printk("%s: Warning:%s Unknown address range!\n",
621 __func__, DRIVER_NAME);
622 }
623 addr = -1UL;
624 }
625 return addr;
626 }
627
628 /* check if address is in the same windows as the previous access */
629 static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha,
630 unsigned long long addr)
631 {
632 int window;
633 unsigned long long qdr_max;
634
635 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
636
637 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
638 QLA82XX_ADDR_DDR_NET_MAX)) {
639 /* DDR network side */
640 BUG(); /* MN access can not come here */
641 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
642 QLA82XX_ADDR_OCM0_MAX)) {
643 return 1;
644 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
645 QLA82XX_ADDR_OCM1_MAX)) {
646 return 1;
647 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
648 qdr_max)) {
649 /* QDR network side */
650 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
651 if (ha->qdr_sn_window == window)
652 return 1;
653 }
654
655 return 0;
656 }
657
658 static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
659 u64 off, void *data, int size)
660 {
661 unsigned long flags;
662 void __iomem *addr;
663 int ret = 0;
664 u64 start;
665 void __iomem *mem_ptr = NULL;
666 unsigned long mem_base;
667 unsigned long mem_page;
668
669 write_lock_irqsave(&ha->hw_lock, flags);
670
671 /*
672 * If attempting to access unknown address or straddle hw windows,
673 * do not access.
674 */
675 start = qla4_8xxx_pci_set_window(ha, off);
676 if ((start == -1UL) ||
677 (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
678 write_unlock_irqrestore(&ha->hw_lock, flags);
679 printk(KERN_ERR"%s out of bound pci memory access. "
680 "offset is 0x%llx\n", DRIVER_NAME, off);
681 return -1;
682 }
683
684 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
685 if (!addr) {
686 write_unlock_irqrestore(&ha->hw_lock, flags);
687 mem_base = pci_resource_start(ha->pdev, 0);
688 mem_page = start & PAGE_MASK;
689 /* Map two pages whenever user tries to access addresses in two
690 consecutive pages.
691 */
692 if (mem_page != ((start + size - 1) & PAGE_MASK))
693 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
694 else
695 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
696
697 if (mem_ptr == NULL) {
698 *(u8 *)data = 0;
699 return -1;
700 }
701 addr = mem_ptr;
702 addr += start & (PAGE_SIZE - 1);
703 write_lock_irqsave(&ha->hw_lock, flags);
704 }
705
706 switch (size) {
707 case 1:
708 *(u8 *)data = readb(addr);
709 break;
710 case 2:
711 *(u16 *)data = readw(addr);
712 break;
713 case 4:
714 *(u32 *)data = readl(addr);
715 break;
716 case 8:
717 *(u64 *)data = readq(addr);
718 break;
719 default:
720 ret = -1;
721 break;
722 }
723 write_unlock_irqrestore(&ha->hw_lock, flags);
724
725 if (mem_ptr)
726 iounmap(mem_ptr);
727 return ret;
728 }
729
730 static int
731 qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
732 void *data, int size)
733 {
734 unsigned long flags;
735 void __iomem *addr;
736 int ret = 0;
737 u64 start;
738 void __iomem *mem_ptr = NULL;
739 unsigned long mem_base;
740 unsigned long mem_page;
741
742 write_lock_irqsave(&ha->hw_lock, flags);
743
744 /*
745 * If attempting to access unknown address or straddle hw windows,
746 * do not access.
747 */
748 start = qla4_8xxx_pci_set_window(ha, off);
749 if ((start == -1UL) ||
750 (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
751 write_unlock_irqrestore(&ha->hw_lock, flags);
752 printk(KERN_ERR"%s out of bound pci memory access. "
753 "offset is 0x%llx\n", DRIVER_NAME, off);
754 return -1;
755 }
756
757 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
758 if (!addr) {
759 write_unlock_irqrestore(&ha->hw_lock, flags);
760 mem_base = pci_resource_start(ha->pdev, 0);
761 mem_page = start & PAGE_MASK;
762 /* Map two pages whenever user tries to access addresses in two
763 consecutive pages.
764 */
765 if (mem_page != ((start + size - 1) & PAGE_MASK))
766 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
767 else
768 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
769 if (mem_ptr == NULL)
770 return -1;
771
772 addr = mem_ptr;
773 addr += start & (PAGE_SIZE - 1);
774 write_lock_irqsave(&ha->hw_lock, flags);
775 }
776
777 switch (size) {
778 case 1:
779 writeb(*(u8 *)data, addr);
780 break;
781 case 2:
782 writew(*(u16 *)data, addr);
783 break;
784 case 4:
785 writel(*(u32 *)data, addr);
786 break;
787 case 8:
788 writeq(*(u64 *)data, addr);
789 break;
790 default:
791 ret = -1;
792 break;
793 }
794 write_unlock_irqrestore(&ha->hw_lock, flags);
795 if (mem_ptr)
796 iounmap(mem_ptr);
797 return ret;
798 }
799
800 #define MTU_FUDGE_FACTOR 100
801
802 static unsigned long
803 qla4_8xxx_decode_crb_addr(unsigned long addr)
804 {
805 int i;
806 unsigned long base_addr, offset, pci_base;
807
808 if (!qla4_8xxx_crb_table_initialized)
809 qla4_8xxx_crb_addr_transform_setup();
810
811 pci_base = ADDR_ERROR;
812 base_addr = addr & 0xfff00000;
813 offset = addr & 0x000fffff;
814
815 for (i = 0; i < MAX_CRB_XFORM; i++) {
816 if (crb_addr_xform[i] == base_addr) {
817 pci_base = i << 20;
818 break;
819 }
820 }
821 if (pci_base == ADDR_ERROR)
822 return pci_base;
823 else
824 return pci_base + offset;
825 }
826
827 static long rom_max_timeout = 100;
828 static long qla4_8xxx_rom_lock_timeout = 100;
829
830 static int
831 qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
832 {
833 int i;
834 int done = 0, timeout = 0;
835
836 while (!done) {
837 /* acquire semaphore2 from PCI HW block */
838
839 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
840 if (done == 1)
841 break;
842 if (timeout >= qla4_8xxx_rom_lock_timeout) {
843 ql4_printk(KERN_WARNING, ha,
844 "%s: Failed to acquire rom lock", __func__);
845 return -1;
846 }
847
848 timeout++;
849
850 /* Yield CPU */
851 if (!in_interrupt())
852 schedule();
853 else {
854 for (i = 0; i < 20; i++)
855 cpu_relax(); /*This a nop instr on i386*/
856 }
857 }
858 qla4_8xxx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
859 return 0;
860 }
861
862 static void
863 qla4_8xxx_rom_unlock(struct scsi_qla_host *ha)
864 {
865 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
866 }
867
868 static int
869 qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha)
870 {
871 long timeout = 0;
872 long done = 0 ;
873
874 while (done == 0) {
875 done = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
876 done &= 2;
877 timeout++;
878 if (timeout >= rom_max_timeout) {
879 printk("%s: Timeout reached waiting for rom done",
880 DRIVER_NAME);
881 return -1;
882 }
883 }
884 return 0;
885 }
886
887 static int
888 qla4_8xxx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
889 {
890 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
891 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
892 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
893 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
894 if (qla4_8xxx_wait_rom_done(ha)) {
895 printk("%s: Error waiting for rom done\n", DRIVER_NAME);
896 return -1;
897 }
898 /* reset abyte_cnt and dummy_byte_cnt */
899 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
900 udelay(10);
901 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
902
903 *valp = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
904 return 0;
905 }
906
907 static int
908 qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
909 {
910 int ret, loops = 0;
911
912 while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
913 udelay(100);
914 loops++;
915 }
916 if (loops >= 50000) {
917 printk("%s: qla4_8xxx_rom_lock failed\n", DRIVER_NAME);
918 return -1;
919 }
920 ret = qla4_8xxx_do_rom_fast_read(ha, addr, valp);
921 qla4_8xxx_rom_unlock(ha);
922 return ret;
923 }
924
925 /**
926 * This routine does CRB initialize sequence
927 * to put the ISP into operational state
928 **/
929 static int
930 qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
931 {
932 int addr, val;
933 int i ;
934 struct crb_addr_pair *buf;
935 unsigned long off;
936 unsigned offset, n;
937
938 struct crb_addr_pair {
939 long addr;
940 long data;
941 };
942
943 /* Halt all the indiviual PEGs and other blocks of the ISP */
944 qla4_8xxx_rom_lock(ha);
945
946 /* mask all niu interrupts */
947 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
948 /* disable xge rx/tx */
949 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
950 /* disable xg1 rx/tx */
951 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
952
953 /* halt sre */
954 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
955 qla4_8xxx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
956
957 /* halt epg */
958 qla4_8xxx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
959
960 /* halt timers */
961 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
962 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
963 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
964 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
965 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
966
967 /* halt pegs */
968 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
969 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
970 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
971 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
972 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
973
974 /* big hammer */
975 msleep(1000);
976 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
977 /* don't reset CAM block on reset */
978 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
979 else
980 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
981
982 /* reset ms */
983 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
984 val |= (1 << 1);
985 qla4_8xxx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
986
987 msleep(20);
988 /* unreset ms */
989 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
990 val &= ~(1 << 1);
991 qla4_8xxx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
992 msleep(20);
993
994 qla4_8xxx_rom_unlock(ha);
995
996 /* Read the signature value from the flash.
997 * Offset 0: Contain signature (0xcafecafe)
998 * Offset 4: Offset and number of addr/value pairs
999 * that present in CRB initialize sequence
1000 */
1001 if (qla4_8xxx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1002 qla4_8xxx_rom_fast_read(ha, 4, &n) != 0) {
1003 ql4_printk(KERN_WARNING, ha,
1004 "[ERROR] Reading crb_init area: n: %08x\n", n);
1005 return -1;
1006 }
1007
1008 /* Offset in flash = lower 16 bits
1009 * Number of enteries = upper 16 bits
1010 */
1011 offset = n & 0xffffU;
1012 n = (n >> 16) & 0xffffU;
1013
1014 /* number of addr/value pair should not exceed 1024 enteries */
1015 if (n >= 1024) {
1016 ql4_printk(KERN_WARNING, ha,
1017 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1018 DRIVER_NAME, __func__, n);
1019 return -1;
1020 }
1021
1022 ql4_printk(KERN_INFO, ha,
1023 "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1024
1025 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1026 if (buf == NULL) {
1027 ql4_printk(KERN_WARNING, ha,
1028 "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1029 return -1;
1030 }
1031
1032 for (i = 0; i < n; i++) {
1033 if (qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1034 qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1035 0) {
1036 kfree(buf);
1037 return -1;
1038 }
1039
1040 buf[i].addr = addr;
1041 buf[i].data = val;
1042 }
1043
1044 for (i = 0; i < n; i++) {
1045 /* Translate internal CRB initialization
1046 * address to PCI bus address
1047 */
1048 off = qla4_8xxx_decode_crb_addr((unsigned long)buf[i].addr) +
1049 QLA82XX_PCI_CRBSPACE;
1050 /* Not all CRB addr/value pair to be written,
1051 * some of them are skipped
1052 */
1053
1054 /* skip if LS bit is set*/
1055 if (off & 0x1) {
1056 DEBUG2(ql4_printk(KERN_WARNING, ha,
1057 "Skip CRB init replay for offset = 0x%lx\n", off));
1058 continue;
1059 }
1060
1061 /* skipping cold reboot MAGIC */
1062 if (off == QLA82XX_CAM_RAM(0x1fc))
1063 continue;
1064
1065 /* do not reset PCI */
1066 if (off == (ROMUSB_GLB + 0xbc))
1067 continue;
1068
1069 /* skip core clock, so that firmware can increase the clock */
1070 if (off == (ROMUSB_GLB + 0xc8))
1071 continue;
1072
1073 /* skip the function enable register */
1074 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1075 continue;
1076
1077 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1078 continue;
1079
1080 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1081 continue;
1082
1083 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1084 continue;
1085
1086 if (off == ADDR_ERROR) {
1087 ql4_printk(KERN_WARNING, ha,
1088 "%s: [ERROR] Unknown addr: 0x%08lx\n",
1089 DRIVER_NAME, buf[i].addr);
1090 continue;
1091 }
1092
1093 qla4_8xxx_wr_32(ha, off, buf[i].data);
1094
1095 /* ISP requires much bigger delay to settle down,
1096 * else crb_window returns 0xffffffff
1097 */
1098 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1099 msleep(1000);
1100
1101 /* ISP requires millisec delay between
1102 * successive CRB register updation
1103 */
1104 msleep(1);
1105 }
1106
1107 kfree(buf);
1108
1109 /* Resetting the data and instruction cache */
1110 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1111 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1112 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1113
1114 /* Clear all protocol processing engines */
1115 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1116 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1117 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1118 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1119 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1120 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1121 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1122 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1123
1124 return 0;
1125 }
1126
1127 static int
1128 qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1129 {
1130 int i, rval = 0;
1131 long size = 0;
1132 long flashaddr, memaddr;
1133 u64 data;
1134 u32 high, low;
1135
1136 flashaddr = memaddr = ha->hw.flt_region_bootload;
1137 size = (image_start - flashaddr) / 8;
1138
1139 DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1140 ha->host_no, __func__, flashaddr, image_start));
1141
1142 for (i = 0; i < size; i++) {
1143 if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1144 (qla4_8xxx_rom_fast_read(ha, flashaddr + 4,
1145 (int *)&high))) {
1146 rval = -1;
1147 goto exit_load_from_flash;
1148 }
1149 data = ((u64)high << 32) | low ;
1150 rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
1151 if (rval)
1152 goto exit_load_from_flash;
1153
1154 flashaddr += 8;
1155 memaddr += 8;
1156
1157 if (i % 0x1000 == 0)
1158 msleep(1);
1159
1160 }
1161
1162 udelay(100);
1163
1164 read_lock(&ha->hw_lock);
1165 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1166 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1167 read_unlock(&ha->hw_lock);
1168
1169 exit_load_from_flash:
1170 return rval;
1171 }
1172
1173 static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1174 {
1175 u32 rst;
1176
1177 qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1178 if (qla4_8xxx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1179 printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1180 __func__);
1181 return QLA_ERROR;
1182 }
1183
1184 udelay(500);
1185
1186 /* at this point, QM is in reset. This could be a problem if there are
1187 * incoming d* transition queue messages. QM/PCIE could wedge.
1188 * To get around this, QM is brought out of reset.
1189 */
1190
1191 rst = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1192 /* unreset qm */
1193 rst &= ~(1 << 28);
1194 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1195
1196 if (qla4_8xxx_load_from_flash(ha, image_start)) {
1197 printk("%s: Error trying to load fw from flash!\n", __func__);
1198 return QLA_ERROR;
1199 }
1200
1201 return QLA_SUCCESS;
1202 }
1203
1204 int
1205 qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
1206 u64 off, void *data, int size)
1207 {
1208 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1209 int shift_amount;
1210 uint32_t temp;
1211 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1212
1213 /*
1214 * If not MN, go check for MS or invalid.
1215 */
1216
1217 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1218 mem_crb = QLA82XX_CRB_QDR_NET;
1219 else {
1220 mem_crb = QLA82XX_CRB_DDR_NET;
1221 if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
1222 return qla4_8xxx_pci_mem_read_direct(ha,
1223 off, data, size);
1224 }
1225
1226
1227 off8 = off & 0xfffffff0;
1228 off0[0] = off & 0xf;
1229 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1230 shift_amount = 4;
1231
1232 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1233 off0[1] = 0;
1234 sz[1] = size - sz[0];
1235
1236 for (i = 0; i < loop; i++) {
1237 temp = off8 + (i << shift_amount);
1238 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1239 temp = 0;
1240 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1241 temp = MIU_TA_CTL_ENABLE;
1242 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1243 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1244 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1245
1246 for (j = 0; j < MAX_CTL_CHECK; j++) {
1247 temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1248 if ((temp & MIU_TA_CTL_BUSY) == 0)
1249 break;
1250 }
1251
1252 if (j >= MAX_CTL_CHECK) {
1253 if (printk_ratelimit())
1254 ql4_printk(KERN_ERR, ha,
1255 "failed to read through agent\n");
1256 break;
1257 }
1258
1259 start = off0[i] >> 2;
1260 end = (off0[i] + sz[i] - 1) >> 2;
1261 for (k = start; k <= end; k++) {
1262 temp = qla4_8xxx_rd_32(ha,
1263 mem_crb + MIU_TEST_AGT_RDDATA(k));
1264 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1265 }
1266 }
1267
1268 if (j >= MAX_CTL_CHECK)
1269 return -1;
1270
1271 if ((off0[0] & 7) == 0) {
1272 val = word[0];
1273 } else {
1274 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1275 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1276 }
1277
1278 switch (size) {
1279 case 1:
1280 *(uint8_t *)data = val;
1281 break;
1282 case 2:
1283 *(uint16_t *)data = val;
1284 break;
1285 case 4:
1286 *(uint32_t *)data = val;
1287 break;
1288 case 8:
1289 *(uint64_t *)data = val;
1290 break;
1291 }
1292 return 0;
1293 }
1294
1295 int
1296 qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
1297 u64 off, void *data, int size)
1298 {
1299 int i, j, ret = 0, loop, sz[2], off0;
1300 int scale, shift_amount, startword;
1301 uint32_t temp;
1302 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1303
1304 /*
1305 * If not MN, go check for MS or invalid.
1306 */
1307 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1308 mem_crb = QLA82XX_CRB_QDR_NET;
1309 else {
1310 mem_crb = QLA82XX_CRB_DDR_NET;
1311 if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
1312 return qla4_8xxx_pci_mem_write_direct(ha,
1313 off, data, size);
1314 }
1315
1316 off0 = off & 0x7;
1317 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1318 sz[1] = size - sz[0];
1319
1320 off8 = off & 0xfffffff0;
1321 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1322 shift_amount = 4;
1323 scale = 2;
1324 startword = (off & 0xf)/8;
1325
1326 for (i = 0; i < loop; i++) {
1327 if (qla4_8xxx_pci_mem_read_2M(ha, off8 +
1328 (i << shift_amount), &word[i * scale], 8))
1329 return -1;
1330 }
1331
1332 switch (size) {
1333 case 1:
1334 tmpw = *((uint8_t *)data);
1335 break;
1336 case 2:
1337 tmpw = *((uint16_t *)data);
1338 break;
1339 case 4:
1340 tmpw = *((uint32_t *)data);
1341 break;
1342 case 8:
1343 default:
1344 tmpw = *((uint64_t *)data);
1345 break;
1346 }
1347
1348 if (sz[0] == 8)
1349 word[startword] = tmpw;
1350 else {
1351 word[startword] &=
1352 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1353 word[startword] |= tmpw << (off0 * 8);
1354 }
1355
1356 if (sz[1] != 0) {
1357 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1358 word[startword+1] |= tmpw >> (sz[0] * 8);
1359 }
1360
1361 for (i = 0; i < loop; i++) {
1362 temp = off8 + (i << shift_amount);
1363 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1364 temp = 0;
1365 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1366 temp = word[i * scale] & 0xffffffff;
1367 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1368 temp = (word[i * scale] >> 32) & 0xffffffff;
1369 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1370 temp = word[i*scale + 1] & 0xffffffff;
1371 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1372 temp);
1373 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1374 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1375 temp);
1376
1377 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1378 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1379 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1380 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1381
1382 for (j = 0; j < MAX_CTL_CHECK; j++) {
1383 temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1384 if ((temp & MIU_TA_CTL_BUSY) == 0)
1385 break;
1386 }
1387
1388 if (j >= MAX_CTL_CHECK) {
1389 if (printk_ratelimit())
1390 ql4_printk(KERN_ERR, ha,
1391 "failed to write through agent\n");
1392 ret = -1;
1393 break;
1394 }
1395 }
1396
1397 return ret;
1398 }
1399
1400 static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
1401 {
1402 u32 val = 0;
1403 int retries = 60;
1404
1405 if (!pegtune_val) {
1406 do {
1407 val = qla4_8xxx_rd_32(ha, CRB_CMDPEG_STATE);
1408 if ((val == PHAN_INITIALIZE_COMPLETE) ||
1409 (val == PHAN_INITIALIZE_ACK))
1410 return 0;
1411 set_current_state(TASK_UNINTERRUPTIBLE);
1412 schedule_timeout(500);
1413
1414 } while (--retries);
1415
1416 if (!retries) {
1417 pegtune_val = qla4_8xxx_rd_32(ha,
1418 QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1419 printk(KERN_WARNING "%s: init failed, "
1420 "pegtune_val = %x\n", __func__, pegtune_val);
1421 return -1;
1422 }
1423 }
1424 return 0;
1425 }
1426
1427 static int qla4_8xxx_rcvpeg_ready(struct scsi_qla_host *ha)
1428 {
1429 uint32_t state = 0;
1430 int loops = 0;
1431
1432 /* Window 1 call */
1433 read_lock(&ha->hw_lock);
1434 state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
1435 read_unlock(&ha->hw_lock);
1436
1437 while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
1438 udelay(100);
1439 /* Window 1 call */
1440 read_lock(&ha->hw_lock);
1441 state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
1442 read_unlock(&ha->hw_lock);
1443
1444 loops++;
1445 }
1446
1447 if (loops >= 30000) {
1448 DEBUG2(ql4_printk(KERN_INFO, ha,
1449 "Receive Peg initialization not complete: 0x%x.\n", state));
1450 return QLA_ERROR;
1451 }
1452
1453 return QLA_SUCCESS;
1454 }
1455
1456 void
1457 qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
1458 {
1459 uint32_t drv_active;
1460
1461 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1462 drv_active |= (1 << (ha->func_num * 4));
1463 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
1464 }
1465
1466 void
1467 qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1468 {
1469 uint32_t drv_active;
1470
1471 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1472 drv_active &= ~(1 << (ha->func_num * 4));
1473 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
1474 }
1475
1476 static inline int
1477 qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1478 {
1479 uint32_t drv_state, drv_active;
1480 int rval;
1481
1482 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1483 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1484 rval = drv_state & (1 << (ha->func_num * 4));
1485 if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1486 rval = 1;
1487
1488 return rval;
1489 }
1490
1491 static inline void
1492 qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1493 {
1494 uint32_t drv_state;
1495
1496 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1497 drv_state |= (1 << (ha->func_num * 4));
1498 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
1499 }
1500
1501 static inline void
1502 qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1503 {
1504 uint32_t drv_state;
1505
1506 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1507 drv_state &= ~(1 << (ha->func_num * 4));
1508 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
1509 }
1510
1511 static inline void
1512 qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1513 {
1514 uint32_t qsnt_state;
1515
1516 qsnt_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1517 qsnt_state |= (2 << (ha->func_num * 4));
1518 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
1519 }
1520
1521
1522 static int
1523 qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1524 {
1525 int pcie_cap;
1526 uint16_t lnk;
1527
1528 /* scrub dma mask expansion register */
1529 qla4_8xxx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1530
1531 /* Overwrite stale initialization register values */
1532 qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1533 qla4_8xxx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1534 qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1535 qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1536
1537 if (qla4_8xxx_load_fw(ha, image_start) != QLA_SUCCESS) {
1538 printk("%s: Error trying to start fw!\n", __func__);
1539 return QLA_ERROR;
1540 }
1541
1542 /* Handshake with the card before we register the devices. */
1543 if (qla4_8xxx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1544 printk("%s: Error during card handshake!\n", __func__);
1545 return QLA_ERROR;
1546 }
1547
1548 /* Negotiated Link width */
1549 pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1550 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
1551 ha->link_width = (lnk >> 4) & 0x3f;
1552
1553 /* Synchronize with Receive peg */
1554 return qla4_8xxx_rcvpeg_ready(ha);
1555 }
1556
1557 static int
1558 qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
1559 {
1560 int rval = QLA_ERROR;
1561
1562 /*
1563 * FW Load priority:
1564 * 1) Operational firmware residing in flash.
1565 * 2) Fail
1566 */
1567
1568 ql4_printk(KERN_INFO, ha,
1569 "FW: Retrieving flash offsets from FLT/FDT ...\n");
1570 rval = qla4_8xxx_get_flash_info(ha);
1571 if (rval != QLA_SUCCESS)
1572 return rval;
1573
1574 ql4_printk(KERN_INFO, ha,
1575 "FW: Attempting to load firmware from flash...\n");
1576 rval = qla4_8xxx_start_firmware(ha, ha->hw.flt_region_fw);
1577
1578 if (rval != QLA_SUCCESS) {
1579 ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1580 " FAILED...\n");
1581 return rval;
1582 }
1583
1584 return rval;
1585 }
1586
1587 static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha)
1588 {
1589 if (qla4_8xxx_rom_lock(ha)) {
1590 /* Someone else is holding the lock. */
1591 dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1592 }
1593
1594 /*
1595 * Either we got the lock, or someone
1596 * else died while holding it.
1597 * In either case, unlock.
1598 */
1599 qla4_8xxx_rom_unlock(ha);
1600 }
1601
1602 /**
1603 * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
1604 * @ha: pointer to adapter structure
1605 *
1606 * Note: IDC lock must be held upon entry
1607 **/
1608 static int
1609 qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
1610 {
1611 int rval = QLA_ERROR;
1612 int i, timeout;
1613 uint32_t old_count, count;
1614 int need_reset = 0, peg_stuck = 1;
1615
1616 need_reset = qla4_8xxx_need_reset(ha);
1617
1618 old_count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
1619
1620 for (i = 0; i < 10; i++) {
1621 timeout = msleep_interruptible(200);
1622 if (timeout) {
1623 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
1624 QLA82XX_DEV_FAILED);
1625 return rval;
1626 }
1627
1628 count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
1629 if (count != old_count)
1630 peg_stuck = 0;
1631 }
1632
1633 if (need_reset) {
1634 /* We are trying to perform a recovery here. */
1635 if (peg_stuck)
1636 qla4_8xxx_rom_lock_recovery(ha);
1637 goto dev_initialize;
1638 } else {
1639 /* Start of day for this ha context. */
1640 if (peg_stuck) {
1641 /* Either we are the first or recovery in progress. */
1642 qla4_8xxx_rom_lock_recovery(ha);
1643 goto dev_initialize;
1644 } else {
1645 /* Firmware already running. */
1646 rval = QLA_SUCCESS;
1647 goto dev_ready;
1648 }
1649 }
1650
1651 dev_initialize:
1652 /* set to DEV_INITIALIZING */
1653 ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
1654 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
1655
1656 /* Driver that sets device state to initializating sets IDC version */
1657 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
1658
1659 qla4_8xxx_idc_unlock(ha);
1660 rval = qla4_8xxx_try_start_fw(ha);
1661 qla4_8xxx_idc_lock(ha);
1662
1663 if (rval != QLA_SUCCESS) {
1664 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
1665 qla4_8xxx_clear_drv_active(ha);
1666 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
1667 return rval;
1668 }
1669
1670 dev_ready:
1671 ql4_printk(KERN_INFO, ha, "HW State: READY\n");
1672 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
1673
1674 return rval;
1675 }
1676
1677 /**
1678 * qla4_8xxx_need_reset_handler - Code to start reset sequence
1679 * @ha: pointer to adapter structure
1680 *
1681 * Note: IDC lock must be held upon entry
1682 **/
1683 static void
1684 qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
1685 {
1686 uint32_t dev_state, drv_state, drv_active;
1687 unsigned long reset_timeout;
1688
1689 ql4_printk(KERN_INFO, ha,
1690 "Performing ISP error recovery\n");
1691
1692 if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
1693 qla4_8xxx_idc_unlock(ha);
1694 ha->isp_ops->disable_intrs(ha);
1695 qla4_8xxx_idc_lock(ha);
1696 }
1697
1698 qla4_8xxx_set_rst_ready(ha);
1699
1700 /* wait for 10 seconds for reset ack from all functions */
1701 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
1702
1703 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1704 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1705
1706 ql4_printk(KERN_INFO, ha,
1707 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
1708 __func__, ha->host_no, drv_state, drv_active);
1709
1710 while (drv_state != drv_active) {
1711 if (time_after_eq(jiffies, reset_timeout)) {
1712 printk("%s: RESET TIMEOUT!\n", DRIVER_NAME);
1713 break;
1714 }
1715
1716 qla4_8xxx_idc_unlock(ha);
1717 msleep(1000);
1718 qla4_8xxx_idc_lock(ha);
1719
1720 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1721 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1722 }
1723
1724 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
1725 ql4_printk(KERN_INFO, ha, "3:Device state is 0x%x = %s\n", dev_state,
1726 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
1727
1728 /* Force to DEV_COLD unless someone else is starting a reset */
1729 if (dev_state != QLA82XX_DEV_INITIALIZING) {
1730 ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
1731 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
1732 }
1733 }
1734
1735 /**
1736 * qla4_8xxx_need_qsnt_handler - Code to start qsnt
1737 * @ha: pointer to adapter structure
1738 **/
1739 void
1740 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
1741 {
1742 qla4_8xxx_idc_lock(ha);
1743 qla4_8xxx_set_qsnt_ready(ha);
1744 qla4_8xxx_idc_unlock(ha);
1745 }
1746
1747 /**
1748 * qla4_8xxx_device_state_handler - Adapter state machine
1749 * @ha: pointer to host adapter structure.
1750 *
1751 * Note: IDC lock must be UNLOCKED upon entry
1752 **/
1753 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
1754 {
1755 uint32_t dev_state;
1756 int rval = QLA_SUCCESS;
1757 unsigned long dev_init_timeout;
1758
1759 if (!test_bit(AF_INIT_DONE, &ha->flags))
1760 qla4_8xxx_set_drv_active(ha);
1761
1762 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
1763 ql4_printk(KERN_INFO, ha, "1:Device state is 0x%x = %s\n", dev_state,
1764 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
1765
1766 /* wait for 30 seconds for device to go ready */
1767 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
1768
1769 while (1) {
1770 qla4_8xxx_idc_lock(ha);
1771
1772 if (time_after_eq(jiffies, dev_init_timeout)) {
1773 ql4_printk(KERN_WARNING, ha, "Device init failed!\n");
1774 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
1775 QLA82XX_DEV_FAILED);
1776 }
1777
1778 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
1779 ql4_printk(KERN_INFO, ha,
1780 "2:Device state is 0x%x = %s\n", dev_state,
1781 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
1782
1783 /* NOTE: Make sure idc unlocked upon exit of switch statement */
1784 switch (dev_state) {
1785 case QLA82XX_DEV_READY:
1786 qla4_8xxx_idc_unlock(ha);
1787 goto exit;
1788 case QLA82XX_DEV_COLD:
1789 rval = qla4_8xxx_device_bootstrap(ha);
1790 qla4_8xxx_idc_unlock(ha);
1791 goto exit;
1792 case QLA82XX_DEV_INITIALIZING:
1793 qla4_8xxx_idc_unlock(ha);
1794 msleep(1000);
1795 break;
1796 case QLA82XX_DEV_NEED_RESET:
1797 if (!ql4xdontresethba) {
1798 qla4_8xxx_need_reset_handler(ha);
1799 /* Update timeout value after need
1800 * reset handler */
1801 dev_init_timeout = jiffies +
1802 (ha->nx_dev_init_timeout * HZ);
1803 }
1804 qla4_8xxx_idc_unlock(ha);
1805 break;
1806 case QLA82XX_DEV_NEED_QUIESCENT:
1807 qla4_8xxx_idc_unlock(ha);
1808 /* idc locked/unlocked in handler */
1809 qla4_8xxx_need_qsnt_handler(ha);
1810 qla4_8xxx_idc_lock(ha);
1811 /* fall thru needs idc_locked */
1812 case QLA82XX_DEV_QUIESCENT:
1813 qla4_8xxx_idc_unlock(ha);
1814 msleep(1000);
1815 break;
1816 case QLA82XX_DEV_FAILED:
1817 qla4_8xxx_idc_unlock(ha);
1818 qla4xxx_dead_adapter_cleanup(ha);
1819 rval = QLA_ERROR;
1820 goto exit;
1821 default:
1822 qla4_8xxx_idc_unlock(ha);
1823 qla4xxx_dead_adapter_cleanup(ha);
1824 rval = QLA_ERROR;
1825 goto exit;
1826 }
1827 }
1828 exit:
1829 return rval;
1830 }
1831
1832 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
1833 {
1834 int retval;
1835 retval = qla4_8xxx_device_state_handler(ha);
1836
1837 if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))
1838 retval = qla4xxx_request_irqs(ha);
1839
1840 return retval;
1841 }
1842
1843 /*****************************************************************************/
1844 /* Flash Manipulation Routines */
1845 /*****************************************************************************/
1846
1847 #define OPTROM_BURST_SIZE 0x1000
1848 #define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
1849
1850 #define FARX_DATA_FLAG BIT_31
1851 #define FARX_ACCESS_FLASH_CONF 0x7FFD0000
1852 #define FARX_ACCESS_FLASH_DATA 0x7FF00000
1853
1854 static inline uint32_t
1855 flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
1856 {
1857 return hw->flash_conf_off | faddr;
1858 }
1859
1860 static inline uint32_t
1861 flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
1862 {
1863 return hw->flash_data_off | faddr;
1864 }
1865
1866 static uint32_t *
1867 qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
1868 uint32_t faddr, uint32_t length)
1869 {
1870 uint32_t i;
1871 uint32_t val;
1872 int loops = 0;
1873 while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
1874 udelay(100);
1875 cond_resched();
1876 loops++;
1877 }
1878 if (loops >= 50000) {
1879 ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
1880 return dwptr;
1881 }
1882
1883 /* Dword reads to flash. */
1884 for (i = 0; i < length/4; i++, faddr += 4) {
1885 if (qla4_8xxx_do_rom_fast_read(ha, faddr, &val)) {
1886 ql4_printk(KERN_WARNING, ha,
1887 "Do ROM fast read failed\n");
1888 goto done_read;
1889 }
1890 dwptr[i] = __constant_cpu_to_le32(val);
1891 }
1892
1893 done_read:
1894 qla4_8xxx_rom_unlock(ha);
1895 return dwptr;
1896 }
1897
1898 /**
1899 * Address and length are byte address
1900 **/
1901 static uint8_t *
1902 qla4_8xxx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
1903 uint32_t offset, uint32_t length)
1904 {
1905 qla4_8xxx_read_flash_data(ha, (uint32_t *)buf, offset, length);
1906 return buf;
1907 }
1908
1909 static int
1910 qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
1911 {
1912 const char *loc, *locations[] = { "DEF", "PCI" };
1913
1914 /*
1915 * FLT-location structure resides after the last PCI region.
1916 */
1917
1918 /* Begin with sane defaults. */
1919 loc = locations[0];
1920 *start = FA_FLASH_LAYOUT_ADDR_82;
1921
1922 DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
1923 return QLA_SUCCESS;
1924 }
1925
1926 static void
1927 qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
1928 {
1929 const char *loc, *locations[] = { "DEF", "FLT" };
1930 uint16_t *wptr;
1931 uint16_t cnt, chksum;
1932 uint32_t start;
1933 struct qla_flt_header *flt;
1934 struct qla_flt_region *region;
1935 struct ql82xx_hw_data *hw = &ha->hw;
1936
1937 hw->flt_region_flt = flt_addr;
1938 wptr = (uint16_t *)ha->request_ring;
1939 flt = (struct qla_flt_header *)ha->request_ring;
1940 region = (struct qla_flt_region *)&flt[1];
1941 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
1942 flt_addr << 2, OPTROM_BURST_SIZE);
1943 if (*wptr == __constant_cpu_to_le16(0xffff))
1944 goto no_flash_data;
1945 if (flt->version != __constant_cpu_to_le16(1)) {
1946 DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
1947 "version=0x%x length=0x%x checksum=0x%x.\n",
1948 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
1949 le16_to_cpu(flt->checksum)));
1950 goto no_flash_data;
1951 }
1952
1953 cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
1954 for (chksum = 0; cnt; cnt--)
1955 chksum += le16_to_cpu(*wptr++);
1956 if (chksum) {
1957 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
1958 "version=0x%x length=0x%x checksum=0x%x.\n",
1959 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
1960 chksum));
1961 goto no_flash_data;
1962 }
1963
1964 loc = locations[1];
1965 cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
1966 for ( ; cnt; cnt--, region++) {
1967 /* Store addresses as DWORD offsets. */
1968 start = le32_to_cpu(region->start) >> 2;
1969
1970 DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
1971 "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
1972 le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
1973
1974 switch (le32_to_cpu(region->code) & 0xff) {
1975 case FLT_REG_FDT:
1976 hw->flt_region_fdt = start;
1977 break;
1978 case FLT_REG_BOOT_CODE_82:
1979 hw->flt_region_boot = start;
1980 break;
1981 case FLT_REG_FW_82:
1982 hw->flt_region_fw = start;
1983 break;
1984 case FLT_REG_BOOTLOAD_82:
1985 hw->flt_region_bootload = start;
1986 break;
1987 }
1988 }
1989 goto done;
1990
1991 no_flash_data:
1992 /* Use hardcoded defaults. */
1993 loc = locations[0];
1994
1995 hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82;
1996 hw->flt_region_boot = FA_BOOT_CODE_ADDR_82;
1997 hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
1998 hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
1999 done:
2000 DEBUG2(ql4_printk(KERN_INFO, ha, "FLT[%s]: flt=0x%x fdt=0x%x "
2001 "boot=0x%x bootload=0x%x fw=0x%x\n", loc, hw->flt_region_flt,
2002 hw->flt_region_fdt, hw->flt_region_boot, hw->flt_region_bootload,
2003 hw->flt_region_fw));
2004 }
2005
2006 static void
2007 qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha)
2008 {
2009 #define FLASH_BLK_SIZE_4K 0x1000
2010 #define FLASH_BLK_SIZE_32K 0x8000
2011 #define FLASH_BLK_SIZE_64K 0x10000
2012 const char *loc, *locations[] = { "MID", "FDT" };
2013 uint16_t cnt, chksum;
2014 uint16_t *wptr;
2015 struct qla_fdt_layout *fdt;
2016 uint16_t mid = 0;
2017 uint16_t fid = 0;
2018 struct ql82xx_hw_data *hw = &ha->hw;
2019
2020 hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2021 hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
2022
2023 wptr = (uint16_t *)ha->request_ring;
2024 fdt = (struct qla_fdt_layout *)ha->request_ring;
2025 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2026 hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
2027
2028 if (*wptr == __constant_cpu_to_le16(0xffff))
2029 goto no_flash_data;
2030
2031 if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
2032 fdt->sig[3] != 'D')
2033 goto no_flash_data;
2034
2035 for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
2036 cnt++)
2037 chksum += le16_to_cpu(*wptr++);
2038
2039 if (chksum) {
2040 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
2041 "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
2042 le16_to_cpu(fdt->version)));
2043 goto no_flash_data;
2044 }
2045
2046 loc = locations[1];
2047 mid = le16_to_cpu(fdt->man_id);
2048 fid = le16_to_cpu(fdt->id);
2049 hw->fdt_wrt_disable = fdt->wrt_disable_bits;
2050 hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
2051 hw->fdt_block_size = le32_to_cpu(fdt->block_size);
2052
2053 if (fdt->unprotect_sec_cmd) {
2054 hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
2055 fdt->unprotect_sec_cmd);
2056 hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
2057 flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
2058 flash_conf_addr(hw, 0x0336);
2059 }
2060 goto done;
2061
2062 no_flash_data:
2063 loc = locations[0];
2064 hw->fdt_block_size = FLASH_BLK_SIZE_64K;
2065 done:
2066 DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
2067 "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
2068 hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
2069 hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
2070 hw->fdt_block_size));
2071 }
2072
2073 static void
2074 qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
2075 {
2076 #define QLA82XX_IDC_PARAM_ADDR 0x003e885c
2077 uint32_t *wptr;
2078
2079 if (!is_qla8022(ha))
2080 return;
2081 wptr = (uint32_t *)ha->request_ring;
2082 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2083 QLA82XX_IDC_PARAM_ADDR , 8);
2084
2085 if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
2086 ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
2087 ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
2088 } else {
2089 ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
2090 ha->nx_reset_timeout = le32_to_cpu(*wptr);
2091 }
2092
2093 DEBUG2(ql4_printk(KERN_DEBUG, ha,
2094 "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
2095 DEBUG2(ql4_printk(KERN_DEBUG, ha,
2096 "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
2097 return;
2098 }
2099
2100 int
2101 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
2102 {
2103 int ret;
2104 uint32_t flt_addr;
2105
2106 ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
2107 if (ret != QLA_SUCCESS)
2108 return ret;
2109
2110 qla4_8xxx_get_flt_info(ha, flt_addr);
2111 qla4_8xxx_get_fdt_info(ha);
2112 qla4_8xxx_get_idc_param(ha);
2113
2114 return QLA_SUCCESS;
2115 }
2116
2117 /**
2118 * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
2119 * @ha: pointer to host adapter structure.
2120 *
2121 * Remarks:
2122 * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
2123 * not be available after successful return. Driver must cleanup potential
2124 * outstanding I/O's after calling this funcion.
2125 **/
2126 int
2127 qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
2128 {
2129 int status;
2130 uint32_t mbox_cmd[MBOX_REG_COUNT];
2131 uint32_t mbox_sts[MBOX_REG_COUNT];
2132
2133 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2134 memset(&mbox_sts, 0, sizeof(mbox_sts));
2135
2136 mbox_cmd[0] = MBOX_CMD_STOP_FW;
2137 status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
2138 &mbox_cmd[0], &mbox_sts[0]);
2139
2140 DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
2141 __func__, status));
2142 return status;
2143 }
2144
2145 /**
2146 * qla4_8xxx_isp_reset - Resets ISP and aborts all outstanding commands.
2147 * @ha: pointer to host adapter structure.
2148 **/
2149 int
2150 qla4_8xxx_isp_reset(struct scsi_qla_host *ha)
2151 {
2152 int rval;
2153 uint32_t dev_state;
2154
2155 qla4_8xxx_idc_lock(ha);
2156 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2157
2158 if (dev_state == QLA82XX_DEV_READY) {
2159 ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
2160 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2161 QLA82XX_DEV_NEED_RESET);
2162 } else
2163 ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
2164
2165 qla4_8xxx_idc_unlock(ha);
2166
2167 rval = qla4_8xxx_device_state_handler(ha);
2168
2169 qla4_8xxx_idc_lock(ha);
2170 qla4_8xxx_clear_rst_ready(ha);
2171 qla4_8xxx_idc_unlock(ha);
2172
2173 if (rval == QLA_SUCCESS)
2174 clear_bit(AF_FW_RECOVERY, &ha->flags);
2175
2176 return rval;
2177 }
2178
2179 /**
2180 * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
2181 * @ha: pointer to host adapter structure.
2182 *
2183 **/
2184 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
2185 {
2186 uint32_t mbox_cmd[MBOX_REG_COUNT];
2187 uint32_t mbox_sts[MBOX_REG_COUNT];
2188 struct mbx_sys_info *sys_info;
2189 dma_addr_t sys_info_dma;
2190 int status = QLA_ERROR;
2191
2192 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
2193 &sys_info_dma, GFP_KERNEL);
2194 if (sys_info == NULL) {
2195 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
2196 ha->host_no, __func__));
2197 return status;
2198 }
2199
2200 memset(sys_info, 0, sizeof(*sys_info));
2201 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2202 memset(&mbox_sts, 0, sizeof(mbox_sts));
2203
2204 mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
2205 mbox_cmd[1] = LSDW(sys_info_dma);
2206 mbox_cmd[2] = MSDW(sys_info_dma);
2207 mbox_cmd[4] = sizeof(*sys_info);
2208
2209 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
2210 &mbox_sts[0]) != QLA_SUCCESS) {
2211 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
2212 ha->host_no, __func__));
2213 goto exit_validate_mac82;
2214 }
2215
2216 /* Make sure we receive the minimum required data to cache internally */
2217 if (mbox_sts[4] < offsetof(struct mbx_sys_info, reserved)) {
2218 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
2219 " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
2220 goto exit_validate_mac82;
2221
2222 }
2223
2224 /* Save M.A.C. address & serial_number */
2225 memcpy(ha->my_mac, &sys_info->mac_addr[0],
2226 min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
2227 memcpy(ha->serial_number, &sys_info->serial_number,
2228 min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
2229
2230 DEBUG2(printk("scsi%ld: %s: "
2231 "mac %02x:%02x:%02x:%02x:%02x:%02x "
2232 "serial %s\n", ha->host_no, __func__,
2233 ha->my_mac[0], ha->my_mac[1], ha->my_mac[2],
2234 ha->my_mac[3], ha->my_mac[4], ha->my_mac[5],
2235 ha->serial_number));
2236
2237 status = QLA_SUCCESS;
2238
2239 exit_validate_mac82:
2240 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
2241 sys_info_dma);
2242 return status;
2243 }
2244
2245 /* Interrupt handling helpers. */
2246
2247 static int
2248 qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
2249 {
2250 uint32_t mbox_cmd[MBOX_REG_COUNT];
2251 uint32_t mbox_sts[MBOX_REG_COUNT];
2252
2253 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
2254
2255 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2256 memset(&mbox_sts, 0, sizeof(mbox_sts));
2257 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
2258 mbox_cmd[1] = INTR_ENABLE;
2259 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2260 &mbox_sts[0]) != QLA_SUCCESS) {
2261 DEBUG2(ql4_printk(KERN_INFO, ha,
2262 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
2263 __func__, mbox_sts[0]));
2264 return QLA_ERROR;
2265 }
2266 return QLA_SUCCESS;
2267 }
2268
2269 static int
2270 qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
2271 {
2272 uint32_t mbox_cmd[MBOX_REG_COUNT];
2273 uint32_t mbox_sts[MBOX_REG_COUNT];
2274
2275 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
2276
2277 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2278 memset(&mbox_sts, 0, sizeof(mbox_sts));
2279 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
2280 mbox_cmd[1] = INTR_DISABLE;
2281 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2282 &mbox_sts[0]) != QLA_SUCCESS) {
2283 DEBUG2(ql4_printk(KERN_INFO, ha,
2284 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
2285 __func__, mbox_sts[0]));
2286 return QLA_ERROR;
2287 }
2288
2289 return QLA_SUCCESS;
2290 }
2291
2292 void
2293 qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
2294 {
2295 qla4_8xxx_mbx_intr_enable(ha);
2296
2297 spin_lock_irq(&ha->hardware_lock);
2298 /* BIT 10 - reset */
2299 qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2300 spin_unlock_irq(&ha->hardware_lock);
2301 set_bit(AF_INTERRUPTS_ON, &ha->flags);
2302 }
2303
2304 void
2305 qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
2306 {
2307 if (test_bit(AF_INTERRUPTS_ON, &ha->flags))
2308 qla4_8xxx_mbx_intr_disable(ha);
2309
2310 spin_lock_irq(&ha->hardware_lock);
2311 /* BIT 10 - set */
2312 qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2313 spin_unlock_irq(&ha->hardware_lock);
2314 clear_bit(AF_INTERRUPTS_ON, &ha->flags);
2315 }
2316
2317 struct ql4_init_msix_entry {
2318 uint16_t entry;
2319 uint16_t index;
2320 const char *name;
2321 irq_handler_t handler;
2322 };
2323
2324 static struct ql4_init_msix_entry qla4_8xxx_msix_entries[QLA_MSIX_ENTRIES] = {
2325 { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT,
2326 "qla4xxx (default)",
2327 (irq_handler_t)qla4_8xxx_default_intr_handler },
2328 { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q,
2329 "qla4xxx (rsp_q)", (irq_handler_t)qla4_8xxx_msix_rsp_q },
2330 };
2331
2332 void
2333 qla4_8xxx_disable_msix(struct scsi_qla_host *ha)
2334 {
2335 int i;
2336 struct ql4_msix_entry *qentry;
2337
2338 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
2339 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
2340 if (qentry->have_irq) {
2341 free_irq(qentry->msix_vector, ha);
2342 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
2343 __func__, qla4_8xxx_msix_entries[i].name));
2344 }
2345 }
2346 pci_disable_msix(ha->pdev);
2347 clear_bit(AF_MSIX_ENABLED, &ha->flags);
2348 }
2349
2350 int
2351 qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
2352 {
2353 int i, ret;
2354 struct msix_entry entries[QLA_MSIX_ENTRIES];
2355 struct ql4_msix_entry *qentry;
2356
2357 for (i = 0; i < QLA_MSIX_ENTRIES; i++)
2358 entries[i].entry = qla4_8xxx_msix_entries[i].entry;
2359
2360 ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
2361 if (ret) {
2362 ql4_printk(KERN_WARNING, ha,
2363 "MSI-X: Failed to enable support -- %d/%d\n",
2364 QLA_MSIX_ENTRIES, ret);
2365 goto msix_out;
2366 }
2367 set_bit(AF_MSIX_ENABLED, &ha->flags);
2368
2369 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
2370 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
2371 qentry->msix_vector = entries[i].vector;
2372 qentry->msix_entry = entries[i].entry;
2373 qentry->have_irq = 0;
2374 ret = request_irq(qentry->msix_vector,
2375 qla4_8xxx_msix_entries[i].handler, 0,
2376 qla4_8xxx_msix_entries[i].name, ha);
2377 if (ret) {
2378 ql4_printk(KERN_WARNING, ha,
2379 "MSI-X: Unable to register handler -- %x/%d.\n",
2380 qla4_8xxx_msix_entries[i].index, ret);
2381 qla4_8xxx_disable_msix(ha);
2382 goto msix_out;
2383 }
2384 qentry->have_irq = 1;
2385 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
2386 __func__, qla4_8xxx_msix_entries[i].name));
2387 }
2388 msix_out:
2389 return ret;
2390 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree