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Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / scsi / qla4xxx / ql4_nx.c
bloba539e1761f65663a3f9bea5bb82d83b6e43849f7
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 #ifndef readq
659 static inline __u64 readq(const volatile void __iomem *addr)
660 {
661 const volatile u32 __iomem *p = addr;
662 u32 low, high;
663
664 low = readl(p);
665 high = readl(p + 1);
666
667 return low + ((u64)high << 32);
668 }
669 #endif
670
671 #ifndef writeq
672 static inline void writeq(__u64 val, volatile void __iomem *addr)
673 {
674 writel(val, addr);
675 writel(val >> 32, addr+4);
676 }
677 #endif
678
679 static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
680 u64 off, void *data, int size)
681 {
682 unsigned long flags;
683 void __iomem *addr;
684 int ret = 0;
685 u64 start;
686 void __iomem *mem_ptr = NULL;
687 unsigned long mem_base;
688 unsigned long mem_page;
689
690 write_lock_irqsave(&ha->hw_lock, flags);
691
692 /*
693 * If attempting to access unknown address or straddle hw windows,
694 * do not access.
695 */
696 start = qla4_8xxx_pci_set_window(ha, off);
697 if ((start == -1UL) ||
698 (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
699 write_unlock_irqrestore(&ha->hw_lock, flags);
700 printk(KERN_ERR"%s out of bound pci memory access. "
701 "offset is 0x%llx\n", DRIVER_NAME, off);
702 return -1;
703 }
704
705 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
706 if (!addr) {
707 write_unlock_irqrestore(&ha->hw_lock, flags);
708 mem_base = pci_resource_start(ha->pdev, 0);
709 mem_page = start & PAGE_MASK;
710 /* Map two pages whenever user tries to access addresses in two
711 consecutive pages.
712 */
713 if (mem_page != ((start + size - 1) & PAGE_MASK))
714 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
715 else
716 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
717
718 if (mem_ptr == NULL) {
719 *(u8 *)data = 0;
720 return -1;
721 }
722 addr = mem_ptr;
723 addr += start & (PAGE_SIZE - 1);
724 write_lock_irqsave(&ha->hw_lock, flags);
725 }
726
727 switch (size) {
728 case 1:
729 *(u8 *)data = readb(addr);
730 break;
731 case 2:
732 *(u16 *)data = readw(addr);
733 break;
734 case 4:
735 *(u32 *)data = readl(addr);
736 break;
737 case 8:
738 *(u64 *)data = readq(addr);
739 break;
740 default:
741 ret = -1;
742 break;
743 }
744 write_unlock_irqrestore(&ha->hw_lock, flags);
745
746 if (mem_ptr)
747 iounmap(mem_ptr);
748 return ret;
749 }
750
751 static int
752 qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
753 void *data, int size)
754 {
755 unsigned long flags;
756 void __iomem *addr;
757 int ret = 0;
758 u64 start;
759 void __iomem *mem_ptr = NULL;
760 unsigned long mem_base;
761 unsigned long mem_page;
762
763 write_lock_irqsave(&ha->hw_lock, flags);
764
765 /*
766 * If attempting to access unknown address or straddle hw windows,
767 * do not access.
768 */
769 start = qla4_8xxx_pci_set_window(ha, off);
770 if ((start == -1UL) ||
771 (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
772 write_unlock_irqrestore(&ha->hw_lock, flags);
773 printk(KERN_ERR"%s out of bound pci memory access. "
774 "offset is 0x%llx\n", DRIVER_NAME, off);
775 return -1;
776 }
777
778 addr = qla4_8xxx_pci_base_offsetfset(ha, start);
779 if (!addr) {
780 write_unlock_irqrestore(&ha->hw_lock, flags);
781 mem_base = pci_resource_start(ha->pdev, 0);
782 mem_page = start & PAGE_MASK;
783 /* Map two pages whenever user tries to access addresses in two
784 consecutive pages.
785 */
786 if (mem_page != ((start + size - 1) & PAGE_MASK))
787 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
788 else
789 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
790 if (mem_ptr == NULL)
791 return -1;
792
793 addr = mem_ptr;
794 addr += start & (PAGE_SIZE - 1);
795 write_lock_irqsave(&ha->hw_lock, flags);
796 }
797
798 switch (size) {
799 case 1:
800 writeb(*(u8 *)data, addr);
801 break;
802 case 2:
803 writew(*(u16 *)data, addr);
804 break;
805 case 4:
806 writel(*(u32 *)data, addr);
807 break;
808 case 8:
809 writeq(*(u64 *)data, addr);
810 break;
811 default:
812 ret = -1;
813 break;
814 }
815 write_unlock_irqrestore(&ha->hw_lock, flags);
816 if (mem_ptr)
817 iounmap(mem_ptr);
818 return ret;
819 }
820
821 #define MTU_FUDGE_FACTOR 100
822
823 static unsigned long
824 qla4_8xxx_decode_crb_addr(unsigned long addr)
825 {
826 int i;
827 unsigned long base_addr, offset, pci_base;
828
829 if (!qla4_8xxx_crb_table_initialized)
830 qla4_8xxx_crb_addr_transform_setup();
831
832 pci_base = ADDR_ERROR;
833 base_addr = addr & 0xfff00000;
834 offset = addr & 0x000fffff;
835
836 for (i = 0; i < MAX_CRB_XFORM; i++) {
837 if (crb_addr_xform[i] == base_addr) {
838 pci_base = i << 20;
839 break;
840 }
841 }
842 if (pci_base == ADDR_ERROR)
843 return pci_base;
844 else
845 return pci_base + offset;
846 }
847
848 static long rom_max_timeout = 100;
849 static long qla4_8xxx_rom_lock_timeout = 100;
850
851 static int
852 qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
853 {
854 int i;
855 int done = 0, timeout = 0;
856
857 while (!done) {
858 /* acquire semaphore2 from PCI HW block */
859
860 done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
861 if (done == 1)
862 break;
863 if (timeout >= qla4_8xxx_rom_lock_timeout) {
864 ql4_printk(KERN_WARNING, ha,
865 "%s: Failed to acquire rom lock", __func__);
866 return -1;
867 }
868
869 timeout++;
870
871 /* Yield CPU */
872 if (!in_interrupt())
873 schedule();
874 else {
875 for (i = 0; i < 20; i++)
876 cpu_relax(); /*This a nop instr on i386*/
877 }
878 }
879 qla4_8xxx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
880 return 0;
881 }
882
883 static void
884 qla4_8xxx_rom_unlock(struct scsi_qla_host *ha)
885 {
886 qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
887 }
888
889 static int
890 qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha)
891 {
892 long timeout = 0;
893 long done = 0 ;
894
895 while (done == 0) {
896 done = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
897 done &= 2;
898 timeout++;
899 if (timeout >= rom_max_timeout) {
900 printk("%s: Timeout reached waiting for rom done",
901 DRIVER_NAME);
902 return -1;
903 }
904 }
905 return 0;
906 }
907
908 static int
909 qla4_8xxx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
910 {
911 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
912 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
913 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
914 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
915 if (qla4_8xxx_wait_rom_done(ha)) {
916 printk("%s: Error waiting for rom done\n", DRIVER_NAME);
917 return -1;
918 }
919 /* reset abyte_cnt and dummy_byte_cnt */
920 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
921 udelay(10);
922 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
923
924 *valp = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
925 return 0;
926 }
927
928 static int
929 qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
930 {
931 int ret, loops = 0;
932
933 while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
934 udelay(100);
935 loops++;
936 }
937 if (loops >= 50000) {
938 printk("%s: qla4_8xxx_rom_lock failed\n", DRIVER_NAME);
939 return -1;
940 }
941 ret = qla4_8xxx_do_rom_fast_read(ha, addr, valp);
942 qla4_8xxx_rom_unlock(ha);
943 return ret;
944 }
945
946 /**
947 * This routine does CRB initialize sequence
948 * to put the ISP into operational state
949 **/
950 static int
951 qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
952 {
953 int addr, val;
954 int i ;
955 struct crb_addr_pair *buf;
956 unsigned long off;
957 unsigned offset, n;
958
959 struct crb_addr_pair {
960 long addr;
961 long data;
962 };
963
964 /* Halt all the indiviual PEGs and other blocks of the ISP */
965 qla4_8xxx_rom_lock(ha);
966
967 /* disable all I2Q */
968 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
969 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
970 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
971 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
972 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
973 qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
974
975 /* disable all niu interrupts */
976 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
977 /* disable xge rx/tx */
978 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
979 /* disable xg1 rx/tx */
980 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
981 /* disable sideband mac */
982 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
983 /* disable ap0 mac */
984 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
985 /* disable ap1 mac */
986 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
987
988 /* halt sre */
989 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
990 qla4_8xxx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
991
992 /* halt epg */
993 qla4_8xxx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
994
995 /* halt timers */
996 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
997 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
998 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
999 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1000 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1001 qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1002
1003 /* halt pegs */
1004 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1005 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1006 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1007 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1008 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1009 msleep(5);
1010
1011 /* big hammer */
1012 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
1013 /* don't reset CAM block on reset */
1014 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1015 else
1016 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1017
1018 /* reset ms */
1019 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1020 val |= (1 << 1);
1021 qla4_8xxx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1022
1023 msleep(20);
1024 /* unreset ms */
1025 val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1026 val &= ~(1 << 1);
1027 qla4_8xxx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1028 msleep(20);
1029
1030 qla4_8xxx_rom_unlock(ha);
1031
1032 /* Read the signature value from the flash.
1033 * Offset 0: Contain signature (0xcafecafe)
1034 * Offset 4: Offset and number of addr/value pairs
1035 * that present in CRB initialize sequence
1036 */
1037 if (qla4_8xxx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1038 qla4_8xxx_rom_fast_read(ha, 4, &n) != 0) {
1039 ql4_printk(KERN_WARNING, ha,
1040 "[ERROR] Reading crb_init area: n: %08x\n", n);
1041 return -1;
1042 }
1043
1044 /* Offset in flash = lower 16 bits
1045 * Number of enteries = upper 16 bits
1046 */
1047 offset = n & 0xffffU;
1048 n = (n >> 16) & 0xffffU;
1049
1050 /* number of addr/value pair should not exceed 1024 enteries */
1051 if (n >= 1024) {
1052 ql4_printk(KERN_WARNING, ha,
1053 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1054 DRIVER_NAME, __func__, n);
1055 return -1;
1056 }
1057
1058 ql4_printk(KERN_INFO, ha,
1059 "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1060
1061 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1062 if (buf == NULL) {
1063 ql4_printk(KERN_WARNING, ha,
1064 "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1065 return -1;
1066 }
1067
1068 for (i = 0; i < n; i++) {
1069 if (qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1070 qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1071 0) {
1072 kfree(buf);
1073 return -1;
1074 }
1075
1076 buf[i].addr = addr;
1077 buf[i].data = val;
1078 }
1079
1080 for (i = 0; i < n; i++) {
1081 /* Translate internal CRB initialization
1082 * address to PCI bus address
1083 */
1084 off = qla4_8xxx_decode_crb_addr((unsigned long)buf[i].addr) +
1085 QLA82XX_PCI_CRBSPACE;
1086 /* Not all CRB addr/value pair to be written,
1087 * some of them are skipped
1088 */
1089
1090 /* skip if LS bit is set*/
1091 if (off & 0x1) {
1092 DEBUG2(ql4_printk(KERN_WARNING, ha,
1093 "Skip CRB init replay for offset = 0x%lx\n", off));
1094 continue;
1095 }
1096
1097 /* skipping cold reboot MAGIC */
1098 if (off == QLA82XX_CAM_RAM(0x1fc))
1099 continue;
1100
1101 /* do not reset PCI */
1102 if (off == (ROMUSB_GLB + 0xbc))
1103 continue;
1104
1105 /* skip core clock, so that firmware can increase the clock */
1106 if (off == (ROMUSB_GLB + 0xc8))
1107 continue;
1108
1109 /* skip the function enable register */
1110 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1111 continue;
1112
1113 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1114 continue;
1115
1116 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1117 continue;
1118
1119 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1120 continue;
1121
1122 if (off == ADDR_ERROR) {
1123 ql4_printk(KERN_WARNING, ha,
1124 "%s: [ERROR] Unknown addr: 0x%08lx\n",
1125 DRIVER_NAME, buf[i].addr);
1126 continue;
1127 }
1128
1129 qla4_8xxx_wr_32(ha, off, buf[i].data);
1130
1131 /* ISP requires much bigger delay to settle down,
1132 * else crb_window returns 0xffffffff
1133 */
1134 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1135 msleep(1000);
1136
1137 /* ISP requires millisec delay between
1138 * successive CRB register updation
1139 */
1140 msleep(1);
1141 }
1142
1143 kfree(buf);
1144
1145 /* Resetting the data and instruction cache */
1146 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1147 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1148 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1149
1150 /* Clear all protocol processing engines */
1151 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1152 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1153 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1154 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1155 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1156 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1157 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1158 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1159
1160 return 0;
1161 }
1162
1163 static int
1164 qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1165 {
1166 int i, rval = 0;
1167 long size = 0;
1168 long flashaddr, memaddr;
1169 u64 data;
1170 u32 high, low;
1171
1172 flashaddr = memaddr = ha->hw.flt_region_bootload;
1173 size = (image_start - flashaddr) / 8;
1174
1175 DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1176 ha->host_no, __func__, flashaddr, image_start));
1177
1178 for (i = 0; i < size; i++) {
1179 if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1180 (qla4_8xxx_rom_fast_read(ha, flashaddr + 4,
1181 (int *)&high))) {
1182 rval = -1;
1183 goto exit_load_from_flash;
1184 }
1185 data = ((u64)high << 32) | low ;
1186 rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
1187 if (rval)
1188 goto exit_load_from_flash;
1189
1190 flashaddr += 8;
1191 memaddr += 8;
1192
1193 if (i % 0x1000 == 0)
1194 msleep(1);
1195
1196 }
1197
1198 udelay(100);
1199
1200 read_lock(&ha->hw_lock);
1201 qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1202 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1203 read_unlock(&ha->hw_lock);
1204
1205 exit_load_from_flash:
1206 return rval;
1207 }
1208
1209 static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1210 {
1211 u32 rst;
1212
1213 qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1214 if (qla4_8xxx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1215 printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1216 __func__);
1217 return QLA_ERROR;
1218 }
1219
1220 udelay(500);
1221
1222 /* at this point, QM is in reset. This could be a problem if there are
1223 * incoming d* transition queue messages. QM/PCIE could wedge.
1224 * To get around this, QM is brought out of reset.
1225 */
1226
1227 rst = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1228 /* unreset qm */
1229 rst &= ~(1 << 28);
1230 qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1231
1232 if (qla4_8xxx_load_from_flash(ha, image_start)) {
1233 printk("%s: Error trying to load fw from flash!\n", __func__);
1234 return QLA_ERROR;
1235 }
1236
1237 return QLA_SUCCESS;
1238 }
1239
1240 int
1241 qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
1242 u64 off, void *data, int size)
1243 {
1244 int i, j = 0, k, start, end, loop, sz[2], off0[2];
1245 int shift_amount;
1246 uint32_t temp;
1247 uint64_t off8, val, mem_crb, word[2] = {0, 0};
1248
1249 /*
1250 * If not MN, go check for MS or invalid.
1251 */
1252
1253 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1254 mem_crb = QLA82XX_CRB_QDR_NET;
1255 else {
1256 mem_crb = QLA82XX_CRB_DDR_NET;
1257 if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
1258 return qla4_8xxx_pci_mem_read_direct(ha,
1259 off, data, size);
1260 }
1261
1262
1263 off8 = off & 0xfffffff0;
1264 off0[0] = off & 0xf;
1265 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1266 shift_amount = 4;
1267
1268 loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1269 off0[1] = 0;
1270 sz[1] = size - sz[0];
1271
1272 for (i = 0; i < loop; i++) {
1273 temp = off8 + (i << shift_amount);
1274 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1275 temp = 0;
1276 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1277 temp = MIU_TA_CTL_ENABLE;
1278 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1279 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1280 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1281
1282 for (j = 0; j < MAX_CTL_CHECK; j++) {
1283 temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1284 if ((temp & MIU_TA_CTL_BUSY) == 0)
1285 break;
1286 }
1287
1288 if (j >= MAX_CTL_CHECK) {
1289 if (printk_ratelimit())
1290 ql4_printk(KERN_ERR, ha,
1291 "failed to read through agent\n");
1292 break;
1293 }
1294
1295 start = off0[i] >> 2;
1296 end = (off0[i] + sz[i] - 1) >> 2;
1297 for (k = start; k <= end; k++) {
1298 temp = qla4_8xxx_rd_32(ha,
1299 mem_crb + MIU_TEST_AGT_RDDATA(k));
1300 word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1301 }
1302 }
1303
1304 if (j >= MAX_CTL_CHECK)
1305 return -1;
1306
1307 if ((off0[0] & 7) == 0) {
1308 val = word[0];
1309 } else {
1310 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1311 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1312 }
1313
1314 switch (size) {
1315 case 1:
1316 *(uint8_t *)data = val;
1317 break;
1318 case 2:
1319 *(uint16_t *)data = val;
1320 break;
1321 case 4:
1322 *(uint32_t *)data = val;
1323 break;
1324 case 8:
1325 *(uint64_t *)data = val;
1326 break;
1327 }
1328 return 0;
1329 }
1330
1331 int
1332 qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
1333 u64 off, void *data, int size)
1334 {
1335 int i, j, ret = 0, loop, sz[2], off0;
1336 int scale, shift_amount, startword;
1337 uint32_t temp;
1338 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1339
1340 /*
1341 * If not MN, go check for MS or invalid.
1342 */
1343 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1344 mem_crb = QLA82XX_CRB_QDR_NET;
1345 else {
1346 mem_crb = QLA82XX_CRB_DDR_NET;
1347 if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
1348 return qla4_8xxx_pci_mem_write_direct(ha,
1349 off, data, size);
1350 }
1351
1352 off0 = off & 0x7;
1353 sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1354 sz[1] = size - sz[0];
1355
1356 off8 = off & 0xfffffff0;
1357 loop = (((off & 0xf) + size - 1) >> 4) + 1;
1358 shift_amount = 4;
1359 scale = 2;
1360 startword = (off & 0xf)/8;
1361
1362 for (i = 0; i < loop; i++) {
1363 if (qla4_8xxx_pci_mem_read_2M(ha, off8 +
1364 (i << shift_amount), &word[i * scale], 8))
1365 return -1;
1366 }
1367
1368 switch (size) {
1369 case 1:
1370 tmpw = *((uint8_t *)data);
1371 break;
1372 case 2:
1373 tmpw = *((uint16_t *)data);
1374 break;
1375 case 4:
1376 tmpw = *((uint32_t *)data);
1377 break;
1378 case 8:
1379 default:
1380 tmpw = *((uint64_t *)data);
1381 break;
1382 }
1383
1384 if (sz[0] == 8)
1385 word[startword] = tmpw;
1386 else {
1387 word[startword] &=
1388 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1389 word[startword] |= tmpw << (off0 * 8);
1390 }
1391
1392 if (sz[1] != 0) {
1393 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1394 word[startword+1] |= tmpw >> (sz[0] * 8);
1395 }
1396
1397 for (i = 0; i < loop; i++) {
1398 temp = off8 + (i << shift_amount);
1399 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1400 temp = 0;
1401 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1402 temp = word[i * scale] & 0xffffffff;
1403 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1404 temp = (word[i * scale] >> 32) & 0xffffffff;
1405 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1406 temp = word[i*scale + 1] & 0xffffffff;
1407 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1408 temp);
1409 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1410 qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1411 temp);
1412
1413 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1414 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1415 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1416 qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1417
1418 for (j = 0; j < MAX_CTL_CHECK; j++) {
1419 temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1420 if ((temp & MIU_TA_CTL_BUSY) == 0)
1421 break;
1422 }
1423
1424 if (j >= MAX_CTL_CHECK) {
1425 if (printk_ratelimit())
1426 ql4_printk(KERN_ERR, ha,
1427 "failed to write through agent\n");
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 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
1500 }
1501
1502 void
1503 qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1504 {
1505 uint32_t drv_active;
1506
1507 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1508 drv_active &= ~(1 << (ha->func_num * 4));
1509 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
1510 }
1511
1512 static inline int
1513 qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1514 {
1515 uint32_t drv_state, drv_active;
1516 int rval;
1517
1518 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1519 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1520 rval = drv_state & (1 << (ha->func_num * 4));
1521 if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1522 rval = 1;
1523
1524 return rval;
1525 }
1526
1527 static inline void
1528 qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1529 {
1530 uint32_t drv_state;
1531
1532 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1533 drv_state |= (1 << (ha->func_num * 4));
1534 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
1535 }
1536
1537 static inline void
1538 qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1539 {
1540 uint32_t drv_state;
1541
1542 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1543 drv_state &= ~(1 << (ha->func_num * 4));
1544 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
1545 }
1546
1547 static inline void
1548 qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1549 {
1550 uint32_t qsnt_state;
1551
1552 qsnt_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1553 qsnt_state |= (2 << (ha->func_num * 4));
1554 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
1555 }
1556
1557
1558 static int
1559 qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1560 {
1561 int pcie_cap;
1562 uint16_t lnk;
1563
1564 /* scrub dma mask expansion register */
1565 qla4_8xxx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1566
1567 /* Overwrite stale initialization register values */
1568 qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1569 qla4_8xxx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1570 qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1571 qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1572
1573 if (qla4_8xxx_load_fw(ha, image_start) != QLA_SUCCESS) {
1574 printk("%s: Error trying to start fw!\n", __func__);
1575 return QLA_ERROR;
1576 }
1577
1578 /* Handshake with the card before we register the devices. */
1579 if (qla4_8xxx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1580 printk("%s: Error during card handshake!\n", __func__);
1581 return QLA_ERROR;
1582 }
1583
1584 /* Negotiated Link width */
1585 pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1586 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
1587 ha->link_width = (lnk >> 4) & 0x3f;
1588
1589 /* Synchronize with Receive peg */
1590 return qla4_8xxx_rcvpeg_ready(ha);
1591 }
1592
1593 static int
1594 qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
1595 {
1596 int rval = QLA_ERROR;
1597
1598 /*
1599 * FW Load priority:
1600 * 1) Operational firmware residing in flash.
1601 * 2) Fail
1602 */
1603
1604 ql4_printk(KERN_INFO, ha,
1605 "FW: Retrieving flash offsets from FLT/FDT ...\n");
1606 rval = qla4_8xxx_get_flash_info(ha);
1607 if (rval != QLA_SUCCESS)
1608 return rval;
1609
1610 ql4_printk(KERN_INFO, ha,
1611 "FW: Attempting to load firmware from flash...\n");
1612 rval = qla4_8xxx_start_firmware(ha, ha->hw.flt_region_fw);
1613
1614 if (rval != QLA_SUCCESS) {
1615 ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1616 " FAILED...\n");
1617 return rval;
1618 }
1619
1620 return rval;
1621 }
1622
1623 static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha)
1624 {
1625 if (qla4_8xxx_rom_lock(ha)) {
1626 /* Someone else is holding the lock. */
1627 dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1628 }
1629
1630 /*
1631 * Either we got the lock, or someone
1632 * else died while holding it.
1633 * In either case, unlock.
1634 */
1635 qla4_8xxx_rom_unlock(ha);
1636 }
1637
1638 /**
1639 * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
1640 * @ha: pointer to adapter structure
1641 *
1642 * Note: IDC lock must be held upon entry
1643 **/
1644 static int
1645 qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
1646 {
1647 int rval = QLA_ERROR;
1648 int i, timeout;
1649 uint32_t old_count, count;
1650 int need_reset = 0, peg_stuck = 1;
1651
1652 need_reset = qla4_8xxx_need_reset(ha);
1653
1654 old_count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
1655
1656 for (i = 0; i < 10; i++) {
1657 timeout = msleep_interruptible(200);
1658 if (timeout) {
1659 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
1660 QLA82XX_DEV_FAILED);
1661 return rval;
1662 }
1663
1664 count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
1665 if (count != old_count)
1666 peg_stuck = 0;
1667 }
1668
1669 if (need_reset) {
1670 /* We are trying to perform a recovery here. */
1671 if (peg_stuck)
1672 qla4_8xxx_rom_lock_recovery(ha);
1673 goto dev_initialize;
1674 } else {
1675 /* Start of day for this ha context. */
1676 if (peg_stuck) {
1677 /* Either we are the first or recovery in progress. */
1678 qla4_8xxx_rom_lock_recovery(ha);
1679 goto dev_initialize;
1680 } else {
1681 /* Firmware already running. */
1682 rval = QLA_SUCCESS;
1683 goto dev_ready;
1684 }
1685 }
1686
1687 dev_initialize:
1688 /* set to DEV_INITIALIZING */
1689 ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
1690 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
1691
1692 /* Driver that sets device state to initializating sets IDC version */
1693 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
1694
1695 qla4_8xxx_idc_unlock(ha);
1696 rval = qla4_8xxx_try_start_fw(ha);
1697 qla4_8xxx_idc_lock(ha);
1698
1699 if (rval != QLA_SUCCESS) {
1700 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
1701 qla4_8xxx_clear_drv_active(ha);
1702 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
1703 return rval;
1704 }
1705
1706 dev_ready:
1707 ql4_printk(KERN_INFO, ha, "HW State: READY\n");
1708 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
1709
1710 return rval;
1711 }
1712
1713 /**
1714 * qla4_8xxx_need_reset_handler - Code to start reset sequence
1715 * @ha: pointer to adapter structure
1716 *
1717 * Note: IDC lock must be held upon entry
1718 **/
1719 static void
1720 qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
1721 {
1722 uint32_t dev_state, drv_state, drv_active;
1723 unsigned long reset_timeout;
1724
1725 ql4_printk(KERN_INFO, ha,
1726 "Performing ISP error recovery\n");
1727
1728 if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
1729 qla4_8xxx_idc_unlock(ha);
1730 ha->isp_ops->disable_intrs(ha);
1731 qla4_8xxx_idc_lock(ha);
1732 }
1733
1734 qla4_8xxx_set_rst_ready(ha);
1735
1736 /* wait for 10 seconds for reset ack from all functions */
1737 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
1738
1739 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1740 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1741
1742 ql4_printk(KERN_INFO, ha,
1743 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
1744 __func__, ha->host_no, drv_state, drv_active);
1745
1746 while (drv_state != drv_active) {
1747 if (time_after_eq(jiffies, reset_timeout)) {
1748 printk("%s: RESET TIMEOUT!\n", DRIVER_NAME);
1749 break;
1750 }
1751
1752 qla4_8xxx_idc_unlock(ha);
1753 msleep(1000);
1754 qla4_8xxx_idc_lock(ha);
1755
1756 drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
1757 drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
1758 }
1759
1760 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
1761 ql4_printk(KERN_INFO, ha, "3:Device state is 0x%x = %s\n", dev_state,
1762 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
1763
1764 /* Force to DEV_COLD unless someone else is starting a reset */
1765 if (dev_state != QLA82XX_DEV_INITIALIZING) {
1766 ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
1767 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
1768 }
1769 }
1770
1771 /**
1772 * qla4_8xxx_need_qsnt_handler - Code to start qsnt
1773 * @ha: pointer to adapter structure
1774 **/
1775 void
1776 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
1777 {
1778 qla4_8xxx_idc_lock(ha);
1779 qla4_8xxx_set_qsnt_ready(ha);
1780 qla4_8xxx_idc_unlock(ha);
1781 }
1782
1783 /**
1784 * qla4_8xxx_device_state_handler - Adapter state machine
1785 * @ha: pointer to host adapter structure.
1786 *
1787 * Note: IDC lock must be UNLOCKED upon entry
1788 **/
1789 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
1790 {
1791 uint32_t dev_state;
1792 int rval = QLA_SUCCESS;
1793 unsigned long dev_init_timeout;
1794
1795 if (!test_bit(AF_INIT_DONE, &ha->flags))
1796 qla4_8xxx_set_drv_active(ha);
1797
1798 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
1799 ql4_printk(KERN_INFO, ha, "1:Device state is 0x%x = %s\n", dev_state,
1800 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
1801
1802 /* wait for 30 seconds for device to go ready */
1803 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
1804
1805 while (1) {
1806 qla4_8xxx_idc_lock(ha);
1807
1808 if (time_after_eq(jiffies, dev_init_timeout)) {
1809 ql4_printk(KERN_WARNING, ha, "Device init failed!\n");
1810 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
1811 QLA82XX_DEV_FAILED);
1812 }
1813
1814 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
1815 ql4_printk(KERN_INFO, ha,
1816 "2:Device state is 0x%x = %s\n", dev_state,
1817 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
1818
1819 /* NOTE: Make sure idc unlocked upon exit of switch statement */
1820 switch (dev_state) {
1821 case QLA82XX_DEV_READY:
1822 qla4_8xxx_idc_unlock(ha);
1823 goto exit;
1824 case QLA82XX_DEV_COLD:
1825 rval = qla4_8xxx_device_bootstrap(ha);
1826 qla4_8xxx_idc_unlock(ha);
1827 goto exit;
1828 case QLA82XX_DEV_INITIALIZING:
1829 qla4_8xxx_idc_unlock(ha);
1830 msleep(1000);
1831 break;
1832 case QLA82XX_DEV_NEED_RESET:
1833 if (!ql4xdontresethba) {
1834 qla4_8xxx_need_reset_handler(ha);
1835 /* Update timeout value after need
1836 * reset handler */
1837 dev_init_timeout = jiffies +
1838 (ha->nx_dev_init_timeout * HZ);
1839 }
1840 qla4_8xxx_idc_unlock(ha);
1841 break;
1842 case QLA82XX_DEV_NEED_QUIESCENT:
1843 qla4_8xxx_idc_unlock(ha);
1844 /* idc locked/unlocked in handler */
1845 qla4_8xxx_need_qsnt_handler(ha);
1846 qla4_8xxx_idc_lock(ha);
1847 /* fall thru needs idc_locked */
1848 case QLA82XX_DEV_QUIESCENT:
1849 qla4_8xxx_idc_unlock(ha);
1850 msleep(1000);
1851 break;
1852 case QLA82XX_DEV_FAILED:
1853 qla4_8xxx_idc_unlock(ha);
1854 qla4xxx_dead_adapter_cleanup(ha);
1855 rval = QLA_ERROR;
1856 goto exit;
1857 default:
1858 qla4_8xxx_idc_unlock(ha);
1859 qla4xxx_dead_adapter_cleanup(ha);
1860 rval = QLA_ERROR;
1861 goto exit;
1862 }
1863 }
1864 exit:
1865 return rval;
1866 }
1867
1868 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
1869 {
1870 int retval;
1871 retval = qla4_8xxx_device_state_handler(ha);
1872
1873 if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))
1874 retval = qla4xxx_request_irqs(ha);
1875
1876 return retval;
1877 }
1878
1879 /*****************************************************************************/
1880 /* Flash Manipulation Routines */
1881 /*****************************************************************************/
1882
1883 #define OPTROM_BURST_SIZE 0x1000
1884 #define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
1885
1886 #define FARX_DATA_FLAG BIT_31
1887 #define FARX_ACCESS_FLASH_CONF 0x7FFD0000
1888 #define FARX_ACCESS_FLASH_DATA 0x7FF00000
1889
1890 static inline uint32_t
1891 flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
1892 {
1893 return hw->flash_conf_off | faddr;
1894 }
1895
1896 static inline uint32_t
1897 flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
1898 {
1899 return hw->flash_data_off | faddr;
1900 }
1901
1902 static uint32_t *
1903 qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
1904 uint32_t faddr, uint32_t length)
1905 {
1906 uint32_t i;
1907 uint32_t val;
1908 int loops = 0;
1909 while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
1910 udelay(100);
1911 cond_resched();
1912 loops++;
1913 }
1914 if (loops >= 50000) {
1915 ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
1916 return dwptr;
1917 }
1918
1919 /* Dword reads to flash. */
1920 for (i = 0; i < length/4; i++, faddr += 4) {
1921 if (qla4_8xxx_do_rom_fast_read(ha, faddr, &val)) {
1922 ql4_printk(KERN_WARNING, ha,
1923 "Do ROM fast read failed\n");
1924 goto done_read;
1925 }
1926 dwptr[i] = __constant_cpu_to_le32(val);
1927 }
1928
1929 done_read:
1930 qla4_8xxx_rom_unlock(ha);
1931 return dwptr;
1932 }
1933
1934 /**
1935 * Address and length are byte address
1936 **/
1937 static uint8_t *
1938 qla4_8xxx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
1939 uint32_t offset, uint32_t length)
1940 {
1941 qla4_8xxx_read_flash_data(ha, (uint32_t *)buf, offset, length);
1942 return buf;
1943 }
1944
1945 static int
1946 qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
1947 {
1948 const char *loc, *locations[] = { "DEF", "PCI" };
1949
1950 /*
1951 * FLT-location structure resides after the last PCI region.
1952 */
1953
1954 /* Begin with sane defaults. */
1955 loc = locations[0];
1956 *start = FA_FLASH_LAYOUT_ADDR_82;
1957
1958 DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
1959 return QLA_SUCCESS;
1960 }
1961
1962 static void
1963 qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
1964 {
1965 const char *loc, *locations[] = { "DEF", "FLT" };
1966 uint16_t *wptr;
1967 uint16_t cnt, chksum;
1968 uint32_t start;
1969 struct qla_flt_header *flt;
1970 struct qla_flt_region *region;
1971 struct ql82xx_hw_data *hw = &ha->hw;
1972
1973 hw->flt_region_flt = flt_addr;
1974 wptr = (uint16_t *)ha->request_ring;
1975 flt = (struct qla_flt_header *)ha->request_ring;
1976 region = (struct qla_flt_region *)&flt[1];
1977 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
1978 flt_addr << 2, OPTROM_BURST_SIZE);
1979 if (*wptr == __constant_cpu_to_le16(0xffff))
1980 goto no_flash_data;
1981 if (flt->version != __constant_cpu_to_le16(1)) {
1982 DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
1983 "version=0x%x length=0x%x checksum=0x%x.\n",
1984 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
1985 le16_to_cpu(flt->checksum)));
1986 goto no_flash_data;
1987 }
1988
1989 cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
1990 for (chksum = 0; cnt; cnt--)
1991 chksum += le16_to_cpu(*wptr++);
1992 if (chksum) {
1993 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
1994 "version=0x%x length=0x%x checksum=0x%x.\n",
1995 le16_to_cpu(flt->version), le16_to_cpu(flt->length),
1996 chksum));
1997 goto no_flash_data;
1998 }
1999
2000 loc = locations[1];
2001 cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
2002 for ( ; cnt; cnt--, region++) {
2003 /* Store addresses as DWORD offsets. */
2004 start = le32_to_cpu(region->start) >> 2;
2005
2006 DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
2007 "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
2008 le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
2009
2010 switch (le32_to_cpu(region->code) & 0xff) {
2011 case FLT_REG_FDT:
2012 hw->flt_region_fdt = start;
2013 break;
2014 case FLT_REG_BOOT_CODE_82:
2015 hw->flt_region_boot = start;
2016 break;
2017 case FLT_REG_FW_82:
2018 hw->flt_region_fw = start;
2019 break;
2020 case FLT_REG_BOOTLOAD_82:
2021 hw->flt_region_bootload = start;
2022 break;
2023 case FLT_REG_ISCSI_PARAM:
2024 hw->flt_iscsi_param = start;
2025 break;
2026 }
2027 }
2028 goto done;
2029
2030 no_flash_data:
2031 /* Use hardcoded defaults. */
2032 loc = locations[0];
2033
2034 hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82;
2035 hw->flt_region_boot = FA_BOOT_CODE_ADDR_82;
2036 hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
2037 hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
2038 done:
2039 DEBUG2(ql4_printk(KERN_INFO, ha, "FLT[%s]: flt=0x%x fdt=0x%x "
2040 "boot=0x%x bootload=0x%x fw=0x%x\n", loc, hw->flt_region_flt,
2041 hw->flt_region_fdt, hw->flt_region_boot, hw->flt_region_bootload,
2042 hw->flt_region_fw));
2043 }
2044
2045 static void
2046 qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha)
2047 {
2048 #define FLASH_BLK_SIZE_4K 0x1000
2049 #define FLASH_BLK_SIZE_32K 0x8000
2050 #define FLASH_BLK_SIZE_64K 0x10000
2051 const char *loc, *locations[] = { "MID", "FDT" };
2052 uint16_t cnt, chksum;
2053 uint16_t *wptr;
2054 struct qla_fdt_layout *fdt;
2055 uint16_t mid = 0;
2056 uint16_t fid = 0;
2057 struct ql82xx_hw_data *hw = &ha->hw;
2058
2059 hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2060 hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
2061
2062 wptr = (uint16_t *)ha->request_ring;
2063 fdt = (struct qla_fdt_layout *)ha->request_ring;
2064 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2065 hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
2066
2067 if (*wptr == __constant_cpu_to_le16(0xffff))
2068 goto no_flash_data;
2069
2070 if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
2071 fdt->sig[3] != 'D')
2072 goto no_flash_data;
2073
2074 for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
2075 cnt++)
2076 chksum += le16_to_cpu(*wptr++);
2077
2078 if (chksum) {
2079 DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
2080 "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
2081 le16_to_cpu(fdt->version)));
2082 goto no_flash_data;
2083 }
2084
2085 loc = locations[1];
2086 mid = le16_to_cpu(fdt->man_id);
2087 fid = le16_to_cpu(fdt->id);
2088 hw->fdt_wrt_disable = fdt->wrt_disable_bits;
2089 hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
2090 hw->fdt_block_size = le32_to_cpu(fdt->block_size);
2091
2092 if (fdt->unprotect_sec_cmd) {
2093 hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
2094 fdt->unprotect_sec_cmd);
2095 hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
2096 flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
2097 flash_conf_addr(hw, 0x0336);
2098 }
2099 goto done;
2100
2101 no_flash_data:
2102 loc = locations[0];
2103 hw->fdt_block_size = FLASH_BLK_SIZE_64K;
2104 done:
2105 DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
2106 "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
2107 hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
2108 hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
2109 hw->fdt_block_size));
2110 }
2111
2112 static void
2113 qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
2114 {
2115 #define QLA82XX_IDC_PARAM_ADDR 0x003e885c
2116 uint32_t *wptr;
2117
2118 if (!is_qla8022(ha))
2119 return;
2120 wptr = (uint32_t *)ha->request_ring;
2121 qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
2122 QLA82XX_IDC_PARAM_ADDR , 8);
2123
2124 if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
2125 ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
2126 ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
2127 } else {
2128 ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
2129 ha->nx_reset_timeout = le32_to_cpu(*wptr);
2130 }
2131
2132 DEBUG2(ql4_printk(KERN_DEBUG, ha,
2133 "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
2134 DEBUG2(ql4_printk(KERN_DEBUG, ha,
2135 "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
2136 return;
2137 }
2138
2139 int
2140 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
2141 {
2142 int ret;
2143 uint32_t flt_addr;
2144
2145 ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
2146 if (ret != QLA_SUCCESS)
2147 return ret;
2148
2149 qla4_8xxx_get_flt_info(ha, flt_addr);
2150 qla4_8xxx_get_fdt_info(ha);
2151 qla4_8xxx_get_idc_param(ha);
2152
2153 return QLA_SUCCESS;
2154 }
2155
2156 /**
2157 * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
2158 * @ha: pointer to host adapter structure.
2159 *
2160 * Remarks:
2161 * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
2162 * not be available after successful return. Driver must cleanup potential
2163 * outstanding I/O's after calling this funcion.
2164 **/
2165 int
2166 qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
2167 {
2168 int status;
2169 uint32_t mbox_cmd[MBOX_REG_COUNT];
2170 uint32_t mbox_sts[MBOX_REG_COUNT];
2171
2172 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2173 memset(&mbox_sts, 0, sizeof(mbox_sts));
2174
2175 mbox_cmd[0] = MBOX_CMD_STOP_FW;
2176 status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
2177 &mbox_cmd[0], &mbox_sts[0]);
2178
2179 DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
2180 __func__, status));
2181 return status;
2182 }
2183
2184 /**
2185 * qla4_8xxx_isp_reset - Resets ISP and aborts all outstanding commands.
2186 * @ha: pointer to host adapter structure.
2187 **/
2188 int
2189 qla4_8xxx_isp_reset(struct scsi_qla_host *ha)
2190 {
2191 int rval;
2192 uint32_t dev_state;
2193
2194 qla4_8xxx_idc_lock(ha);
2195 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2196
2197 if (dev_state == QLA82XX_DEV_READY) {
2198 ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
2199 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2200 QLA82XX_DEV_NEED_RESET);
2201 } else
2202 ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
2203
2204 qla4_8xxx_idc_unlock(ha);
2205
2206 rval = qla4_8xxx_device_state_handler(ha);
2207
2208 qla4_8xxx_idc_lock(ha);
2209 qla4_8xxx_clear_rst_ready(ha);
2210 qla4_8xxx_idc_unlock(ha);
2211
2212 if (rval == QLA_SUCCESS)
2213 clear_bit(AF_FW_RECOVERY, &ha->flags);
2214
2215 return rval;
2216 }
2217
2218 /**
2219 * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
2220 * @ha: pointer to host adapter structure.
2221 *
2222 **/
2223 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
2224 {
2225 uint32_t mbox_cmd[MBOX_REG_COUNT];
2226 uint32_t mbox_sts[MBOX_REG_COUNT];
2227 struct mbx_sys_info *sys_info;
2228 dma_addr_t sys_info_dma;
2229 int status = QLA_ERROR;
2230
2231 sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
2232 &sys_info_dma, GFP_KERNEL);
2233 if (sys_info == NULL) {
2234 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
2235 ha->host_no, __func__));
2236 return status;
2237 }
2238
2239 memset(sys_info, 0, sizeof(*sys_info));
2240 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2241 memset(&mbox_sts, 0, sizeof(mbox_sts));
2242
2243 mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
2244 mbox_cmd[1] = LSDW(sys_info_dma);
2245 mbox_cmd[2] = MSDW(sys_info_dma);
2246 mbox_cmd[4] = sizeof(*sys_info);
2247
2248 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
2249 &mbox_sts[0]) != QLA_SUCCESS) {
2250 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
2251 ha->host_no, __func__));
2252 goto exit_validate_mac82;
2253 }
2254
2255 /* Make sure we receive the minimum required data to cache internally */
2256 if (mbox_sts[4] < offsetof(struct mbx_sys_info, reserved)) {
2257 DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
2258 " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
2259 goto exit_validate_mac82;
2260
2261 }
2262
2263 /* Save M.A.C. address & serial_number */
2264 ha->port_num = sys_info->port_num;
2265 memcpy(ha->my_mac, &sys_info->mac_addr[0],
2266 min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
2267 memcpy(ha->serial_number, &sys_info->serial_number,
2268 min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
2269 memcpy(ha->model_name, &sys_info->board_id_str,
2270 min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
2271 ha->phy_port_cnt = sys_info->phys_port_cnt;
2272 ha->phy_port_num = sys_info->port_num;
2273 ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
2274
2275 DEBUG2(printk("scsi%ld: %s: "
2276 "mac %02x:%02x:%02x:%02x:%02x:%02x "
2277 "serial %s\n", ha->host_no, __func__,
2278 ha->my_mac[0], ha->my_mac[1], ha->my_mac[2],
2279 ha->my_mac[3], ha->my_mac[4], ha->my_mac[5],
2280 ha->serial_number));
2281
2282 status = QLA_SUCCESS;
2283
2284 exit_validate_mac82:
2285 dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
2286 sys_info_dma);
2287 return status;
2288 }
2289
2290 /* Interrupt handling helpers. */
2291
2292 static int
2293 qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
2294 {
2295 uint32_t mbox_cmd[MBOX_REG_COUNT];
2296 uint32_t mbox_sts[MBOX_REG_COUNT];
2297
2298 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
2299
2300 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2301 memset(&mbox_sts, 0, sizeof(mbox_sts));
2302 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
2303 mbox_cmd[1] = INTR_ENABLE;
2304 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2305 &mbox_sts[0]) != QLA_SUCCESS) {
2306 DEBUG2(ql4_printk(KERN_INFO, ha,
2307 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
2308 __func__, mbox_sts[0]));
2309 return QLA_ERROR;
2310 }
2311 return QLA_SUCCESS;
2312 }
2313
2314 static int
2315 qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
2316 {
2317 uint32_t mbox_cmd[MBOX_REG_COUNT];
2318 uint32_t mbox_sts[MBOX_REG_COUNT];
2319
2320 DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
2321
2322 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2323 memset(&mbox_sts, 0, sizeof(mbox_sts));
2324 mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
2325 mbox_cmd[1] = INTR_DISABLE;
2326 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2327 &mbox_sts[0]) != QLA_SUCCESS) {
2328 DEBUG2(ql4_printk(KERN_INFO, ha,
2329 "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
2330 __func__, mbox_sts[0]));
2331 return QLA_ERROR;
2332 }
2333
2334 return QLA_SUCCESS;
2335 }
2336
2337 void
2338 qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
2339 {
2340 qla4_8xxx_mbx_intr_enable(ha);
2341
2342 spin_lock_irq(&ha->hardware_lock);
2343 /* BIT 10 - reset */
2344 qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2345 spin_unlock_irq(&ha->hardware_lock);
2346 set_bit(AF_INTERRUPTS_ON, &ha->flags);
2347 }
2348
2349 void
2350 qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
2351 {
2352 if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
2353 qla4_8xxx_mbx_intr_disable(ha);
2354
2355 spin_lock_irq(&ha->hardware_lock);
2356 /* BIT 10 - set */
2357 qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2358 spin_unlock_irq(&ha->hardware_lock);
2359 }
2360
2361 struct ql4_init_msix_entry {
2362 uint16_t entry;
2363 uint16_t index;
2364 const char *name;
2365 irq_handler_t handler;
2366 };
2367
2368 static struct ql4_init_msix_entry qla4_8xxx_msix_entries[QLA_MSIX_ENTRIES] = {
2369 { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT,
2370 "qla4xxx (default)",
2371 (irq_handler_t)qla4_8xxx_default_intr_handler },
2372 { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q,
2373 "qla4xxx (rsp_q)", (irq_handler_t)qla4_8xxx_msix_rsp_q },
2374 };
2375
2376 void
2377 qla4_8xxx_disable_msix(struct scsi_qla_host *ha)
2378 {
2379 int i;
2380 struct ql4_msix_entry *qentry;
2381
2382 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
2383 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
2384 if (qentry->have_irq) {
2385 free_irq(qentry->msix_vector, ha);
2386 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
2387 __func__, qla4_8xxx_msix_entries[i].name));
2388 }
2389 }
2390 pci_disable_msix(ha->pdev);
2391 clear_bit(AF_MSIX_ENABLED, &ha->flags);
2392 }
2393
2394 int
2395 qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
2396 {
2397 int i, ret;
2398 struct msix_entry entries[QLA_MSIX_ENTRIES];
2399 struct ql4_msix_entry *qentry;
2400
2401 for (i = 0; i < QLA_MSIX_ENTRIES; i++)
2402 entries[i].entry = qla4_8xxx_msix_entries[i].entry;
2403
2404 ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
2405 if (ret) {
2406 ql4_printk(KERN_WARNING, ha,
2407 "MSI-X: Failed to enable support -- %d/%d\n",
2408 QLA_MSIX_ENTRIES, ret);
2409 goto msix_out;
2410 }
2411 set_bit(AF_MSIX_ENABLED, &ha->flags);
2412
2413 for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
2414 qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
2415 qentry->msix_vector = entries[i].vector;
2416 qentry->msix_entry = entries[i].entry;
2417 qentry->have_irq = 0;
2418 ret = request_irq(qentry->msix_vector,
2419 qla4_8xxx_msix_entries[i].handler, 0,
2420 qla4_8xxx_msix_entries[i].name, ha);
2421 if (ret) {
2422 ql4_printk(KERN_WARNING, ha,
2423 "MSI-X: Unable to register handler -- %x/%d.\n",
2424 qla4_8xxx_msix_entries[i].index, ret);
2425 qla4_8xxx_disable_msix(ha);
2426 goto msix_out;
2427 }
2428 qentry->have_irq = 1;
2429 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
2430 __func__, qla4_8xxx_msix_entries[i].name));
2431 }
2432 msix_out:
2433 return ret;
2434 }
linux-next