1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2010 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include <linux/delay.h> 9 #include <linux/pci.h> 10 11 #define MASK(n) ((1ULL<<(n))-1) 12 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \ 13 ((addr >> 25) & 0x3ff)) 14 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \ 15 ((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 #define BLOCK_PROTECT_BITS 0x0F 23 24 /* CRB window related */ 25 #define CRB_BLK(off) ((off >> 20) & 0x3f) 26 #define CRB_SUBBLK(off) ((off >> 16) & 0xf) 27 #define CRB_WINDOW_2M (0x130060) 28 #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL) 29 #define CRB_HI(off) ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \ 30 ((off) & 0xf0000)) 31 #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL) 32 #define CRB_INDIRECT_2M (0x1e0000UL) 33 34 #define MAX_CRB_XFORM 60 35 static unsigned long crb_addr_xform[MAX_CRB_XFORM]; 36 int qla82xx_crb_table_initialized; 37 38 #define qla82xx_crb_addr_transform(name) \ 39 (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \ 40 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20) 41 42 static void qla82xx_crb_addr_transform_setup(void) 43 { 44 qla82xx_crb_addr_transform(XDMA); 45 qla82xx_crb_addr_transform(TIMR); 46 qla82xx_crb_addr_transform(SRE); 47 qla82xx_crb_addr_transform(SQN3); 48 qla82xx_crb_addr_transform(SQN2); 49 qla82xx_crb_addr_transform(SQN1); 50 qla82xx_crb_addr_transform(SQN0); 51 qla82xx_crb_addr_transform(SQS3); 52 qla82xx_crb_addr_transform(SQS2); 53 qla82xx_crb_addr_transform(SQS1); 54 qla82xx_crb_addr_transform(SQS0); 55 qla82xx_crb_addr_transform(RPMX7); 56 qla82xx_crb_addr_transform(RPMX6); 57 qla82xx_crb_addr_transform(RPMX5); 58 qla82xx_crb_addr_transform(RPMX4); 59 qla82xx_crb_addr_transform(RPMX3); 60 qla82xx_crb_addr_transform(RPMX2); 61 qla82xx_crb_addr_transform(RPMX1); 62 qla82xx_crb_addr_transform(RPMX0); 63 qla82xx_crb_addr_transform(ROMUSB); 64 qla82xx_crb_addr_transform(SN); 65 qla82xx_crb_addr_transform(QMN); 66 qla82xx_crb_addr_transform(QMS); 67 qla82xx_crb_addr_transform(PGNI); 68 qla82xx_crb_addr_transform(PGND); 69 qla82xx_crb_addr_transform(PGN3); 70 qla82xx_crb_addr_transform(PGN2); 71 qla82xx_crb_addr_transform(PGN1); 72 qla82xx_crb_addr_transform(PGN0); 73 qla82xx_crb_addr_transform(PGSI); 74 qla82xx_crb_addr_transform(PGSD); 75 qla82xx_crb_addr_transform(PGS3); 76 qla82xx_crb_addr_transform(PGS2); 77 qla82xx_crb_addr_transform(PGS1); 78 qla82xx_crb_addr_transform(PGS0); 79 qla82xx_crb_addr_transform(PS); 80 qla82xx_crb_addr_transform(PH); 81 qla82xx_crb_addr_transform(NIU); 82 qla82xx_crb_addr_transform(I2Q); 83 qla82xx_crb_addr_transform(EG); 84 qla82xx_crb_addr_transform(MN); 85 qla82xx_crb_addr_transform(MS); 86 qla82xx_crb_addr_transform(CAS2); 87 qla82xx_crb_addr_transform(CAS1); 88 qla82xx_crb_addr_transform(CAS0); 89 qla82xx_crb_addr_transform(CAM); 90 qla82xx_crb_addr_transform(C2C1); 91 qla82xx_crb_addr_transform(C2C0); 92 qla82xx_crb_addr_transform(SMB); 93 qla82xx_crb_addr_transform(OCM0); 94 /* 95 * Used only in P3 just define it for P2 also. 96 */ 97 qla82xx_crb_addr_transform(I2C0); 98 99 qla82xx_crb_table_initialized = 1; 100 } 101 102 struct crb_128M_2M_block_map crb_128M_2M_map[64] = { 103 {{{0, 0, 0, 0} } }, 104 {{{1, 0x0100000, 0x0102000, 0x120000}, 105 {1, 0x0110000, 0x0120000, 0x130000}, 106 {1, 0x0120000, 0x0122000, 0x124000}, 107 {1, 0x0130000, 0x0132000, 0x126000}, 108 {1, 0x0140000, 0x0142000, 0x128000}, 109 {1, 0x0150000, 0x0152000, 0x12a000}, 110 {1, 0x0160000, 0x0170000, 0x110000}, 111 {1, 0x0170000, 0x0172000, 0x12e000}, 112 {0, 0x0000000, 0x0000000, 0x000000}, 113 {0, 0x0000000, 0x0000000, 0x000000}, 114 {0, 0x0000000, 0x0000000, 0x000000}, 115 {0, 0x0000000, 0x0000000, 0x000000}, 116 {0, 0x0000000, 0x0000000, 0x000000}, 117 {0, 0x0000000, 0x0000000, 0x000000}, 118 {1, 0x01e0000, 0x01e0800, 0x122000}, 119 {0, 0x0000000, 0x0000000, 0x000000} } } , 120 {{{1, 0x0200000, 0x0210000, 0x180000} } }, 121 {{{0, 0, 0, 0} } }, 122 {{{1, 0x0400000, 0x0401000, 0x169000} } }, 123 {{{1, 0x0500000, 0x0510000, 0x140000} } }, 124 {{{1, 0x0600000, 0x0610000, 0x1c0000} } }, 125 {{{1, 0x0700000, 0x0704000, 0x1b8000} } }, 126 {{{1, 0x0800000, 0x0802000, 0x170000}, 127 {0, 0x0000000, 0x0000000, 0x000000}, 128 {0, 0x0000000, 0x0000000, 0x000000}, 129 {0, 0x0000000, 0x0000000, 0x000000}, 130 {0, 0x0000000, 0x0000000, 0x000000}, 131 {0, 0x0000000, 0x0000000, 0x000000}, 132 {0, 0x0000000, 0x0000000, 0x000000}, 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 {1, 0x08f0000, 0x08f2000, 0x172000} } }, 142 {{{1, 0x0900000, 0x0902000, 0x174000}, 143 {0, 0x0000000, 0x0000000, 0x000000}, 144 {0, 0x0000000, 0x0000000, 0x000000}, 145 {0, 0x0000000, 0x0000000, 0x000000}, 146 {0, 0x0000000, 0x0000000, 0x000000}, 147 {0, 0x0000000, 0x0000000, 0x000000}, 148 {0, 0x0000000, 0x0000000, 0x000000}, 149 {0, 0x0000000, 0x0000000, 0x000000}, 150 {0, 0x0000000, 0x0000000, 0x000000}, 151 {0, 0x0000000, 0x0000000, 0x000000}, 152 {0, 0x0000000, 0x0000000, 0x000000}, 153 {0, 0x0000000, 0x0000000, 0x000000}, 154 {0, 0x0000000, 0x0000000, 0x000000}, 155 {0, 0x0000000, 0x0000000, 0x000000}, 156 {0, 0x0000000, 0x0000000, 0x000000}, 157 {1, 0x09f0000, 0x09f2000, 0x176000} } }, 158 {{{0, 0x0a00000, 0x0a02000, 0x178000}, 159 {0, 0x0000000, 0x0000000, 0x000000}, 160 {0, 0x0000000, 0x0000000, 0x000000}, 161 {0, 0x0000000, 0x0000000, 0x000000}, 162 {0, 0x0000000, 0x0000000, 0x000000}, 163 {0, 0x0000000, 0x0000000, 0x000000}, 164 {0, 0x0000000, 0x0000000, 0x000000}, 165 {0, 0x0000000, 0x0000000, 0x000000}, 166 {0, 0x0000000, 0x0000000, 0x000000}, 167 {0, 0x0000000, 0x0000000, 0x000000}, 168 {0, 0x0000000, 0x0000000, 0x000000}, 169 {0, 0x0000000, 0x0000000, 0x000000}, 170 {0, 0x0000000, 0x0000000, 0x000000}, 171 {0, 0x0000000, 0x0000000, 0x000000}, 172 {0, 0x0000000, 0x0000000, 0x000000}, 173 {1, 0x0af0000, 0x0af2000, 0x17a000} } }, 174 {{{0, 0x0b00000, 0x0b02000, 0x17c000}, 175 {0, 0x0000000, 0x0000000, 0x000000}, 176 {0, 0x0000000, 0x0000000, 0x000000}, 177 {0, 0x0000000, 0x0000000, 0x000000}, 178 {0, 0x0000000, 0x0000000, 0x000000}, 179 {0, 0x0000000, 0x0000000, 0x000000}, 180 {0, 0x0000000, 0x0000000, 0x000000}, 181 {0, 0x0000000, 0x0000000, 0x000000}, 182 {0, 0x0000000, 0x0000000, 0x000000}, 183 {0, 0x0000000, 0x0000000, 0x000000}, 184 {0, 0x0000000, 0x0000000, 0x000000}, 185 {0, 0x0000000, 0x0000000, 0x000000}, 186 {0, 0x0000000, 0x0000000, 0x000000}, 187 {0, 0x0000000, 0x0000000, 0x000000}, 188 {0, 0x0000000, 0x0000000, 0x000000}, 189 {1, 0x0bf0000, 0x0bf2000, 0x17e000} } }, 190 {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } }, 191 {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } }, 192 {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } }, 193 {{{1, 0x0f00000, 0x0f01000, 0x164000} } }, 194 {{{0, 0x1000000, 0x1004000, 0x1a8000} } }, 195 {{{1, 0x1100000, 0x1101000, 0x160000} } }, 196 {{{1, 0x1200000, 0x1201000, 0x161000} } }, 197 {{{1, 0x1300000, 0x1301000, 0x162000} } }, 198 {{{1, 0x1400000, 0x1401000, 0x163000} } }, 199 {{{1, 0x1500000, 0x1501000, 0x165000} } }, 200 {{{1, 0x1600000, 0x1601000, 0x166000} } }, 201 {{{0, 0, 0, 0} } }, 202 {{{0, 0, 0, 0} } }, 203 {{{0, 0, 0, 0} } }, 204 {{{0, 0, 0, 0} } }, 205 {{{0, 0, 0, 0} } }, 206 {{{0, 0, 0, 0} } }, 207 {{{1, 0x1d00000, 0x1d10000, 0x190000} } }, 208 {{{1, 0x1e00000, 0x1e01000, 0x16a000} } }, 209 {{{1, 0x1f00000, 0x1f10000, 0x150000} } }, 210 {{{0} } }, 211 {{{1, 0x2100000, 0x2102000, 0x120000}, 212 {1, 0x2110000, 0x2120000, 0x130000}, 213 {1, 0x2120000, 0x2122000, 0x124000}, 214 {1, 0x2130000, 0x2132000, 0x126000}, 215 {1, 0x2140000, 0x2142000, 0x128000}, 216 {1, 0x2150000, 0x2152000, 0x12a000}, 217 {1, 0x2160000, 0x2170000, 0x110000}, 218 {1, 0x2170000, 0x2172000, 0x12e000}, 219 {0, 0x0000000, 0x0000000, 0x000000}, 220 {0, 0x0000000, 0x0000000, 0x000000}, 221 {0, 0x0000000, 0x0000000, 0x000000}, 222 {0, 0x0000000, 0x0000000, 0x000000}, 223 {0, 0x0000000, 0x0000000, 0x000000}, 224 {0, 0x0000000, 0x0000000, 0x000000}, 225 {0, 0x0000000, 0x0000000, 0x000000}, 226 {0, 0x0000000, 0x0000000, 0x000000} } }, 227 {{{1, 0x2200000, 0x2204000, 0x1b0000} } }, 228 {{{0} } }, 229 {{{0} } }, 230 {{{0} } }, 231 {{{0} } }, 232 {{{0} } }, 233 {{{1, 0x2800000, 0x2804000, 0x1a4000} } }, 234 {{{1, 0x2900000, 0x2901000, 0x16b000} } }, 235 {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } }, 236 {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } }, 237 {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } }, 238 {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } }, 239 {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } }, 240 {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } }, 241 {{{1, 0x3000000, 0x3000400, 0x1adc00} } }, 242 {{{0, 0x3100000, 0x3104000, 0x1a8000} } }, 243 {{{1, 0x3200000, 0x3204000, 0x1d4000} } }, 244 {{{1, 0x3300000, 0x3304000, 0x1a0000} } }, 245 {{{0} } }, 246 {{{1, 0x3500000, 0x3500400, 0x1ac000} } }, 247 {{{1, 0x3600000, 0x3600400, 0x1ae000} } }, 248 {{{1, 0x3700000, 0x3700400, 0x1ae400} } }, 249 {{{1, 0x3800000, 0x3804000, 0x1d0000} } }, 250 {{{1, 0x3900000, 0x3904000, 0x1b4000} } }, 251 {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } }, 252 {{{0} } }, 253 {{{0} } }, 254 {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } }, 255 {{{1, 0x3e00000, 0x3e01000, 0x167000} } }, 256 {{{1, 0x3f00000, 0x3f01000, 0x168000} } } 257 }; 258 259 /* 260 * top 12 bits of crb internal address (hub, agent) 261 */ 262 unsigned qla82xx_crb_hub_agt[64] = { 263 0, 264 QLA82XX_HW_CRB_HUB_AGT_ADR_PS, 265 QLA82XX_HW_CRB_HUB_AGT_ADR_MN, 266 QLA82XX_HW_CRB_HUB_AGT_ADR_MS, 267 0, 268 QLA82XX_HW_CRB_HUB_AGT_ADR_SRE, 269 QLA82XX_HW_CRB_HUB_AGT_ADR_NIU, 270 QLA82XX_HW_CRB_HUB_AGT_ADR_QMN, 271 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0, 272 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1, 273 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2, 274 QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3, 275 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q, 276 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR, 277 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB, 278 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4, 279 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA, 280 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0, 281 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1, 282 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2, 283 QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3, 284 QLA82XX_HW_CRB_HUB_AGT_ADR_PGND, 285 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI, 286 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0, 287 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1, 288 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2, 289 QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3, 290 0, 291 QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI, 292 QLA82XX_HW_CRB_HUB_AGT_ADR_SN, 293 0, 294 QLA82XX_HW_CRB_HUB_AGT_ADR_EG, 295 0, 296 QLA82XX_HW_CRB_HUB_AGT_ADR_PS, 297 QLA82XX_HW_CRB_HUB_AGT_ADR_CAM, 298 0, 299 0, 300 0, 301 0, 302 0, 303 QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR, 304 0, 305 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1, 306 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2, 307 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3, 308 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4, 309 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5, 310 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6, 311 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7, 312 QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA, 313 QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q, 314 QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB, 315 0, 316 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0, 317 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8, 318 QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9, 319 QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0, 320 0, 321 QLA82XX_HW_CRB_HUB_AGT_ADR_SMB, 322 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0, 323 QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1, 324 0, 325 QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC, 326 0, 327 }; 328 329 /* Device states */ 330 char *qdev_state[] = { 331 "Unknown", 332 "Cold", 333 "Initializing", 334 "Ready", 335 "Need Reset", 336 "Need Quiescent", 337 "Failed", 338 "Quiescent", 339 }; 340 341 /* 342 * In: 'off' is offset from CRB space in 128M pci map 343 * Out: 'off' is 2M pci map addr 344 * side effect: lock crb window 345 */ 346 static void 347 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off) 348 { 349 u32 win_read; 350 351 ha->crb_win = CRB_HI(*off); 352 writel(ha->crb_win, 353 (void *)(CRB_WINDOW_2M + ha->nx_pcibase)); 354 355 /* Read back value to make sure write has gone through before trying 356 * to use it. 357 */ 358 win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase)); 359 if (win_read != ha->crb_win) { 360 DEBUG2(qla_printk(KERN_INFO, ha, 361 "%s: Written crbwin (0x%x) != Read crbwin (0x%x), " 362 "off=0x%lx\n", __func__, ha->crb_win, win_read, *off)); 363 } 364 *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase; 365 } 366 367 static inline unsigned long 368 qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off) 369 { 370 /* See if we are currently pointing to the region we want to use next */ 371 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) { 372 /* No need to change window. PCIX and PCIEregs are in both 373 * regs are in both windows. 374 */ 375 return off; 376 } 377 378 if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) { 379 /* We are in first CRB window */ 380 if (ha->curr_window != 0) 381 WARN_ON(1); 382 return off; 383 } 384 385 if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) { 386 /* We are in second CRB window */ 387 off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST; 388 389 if (ha->curr_window != 1) 390 return off; 391 392 /* We are in the QM or direct access 393 * register region - do nothing 394 */ 395 if ((off >= QLA82XX_PCI_DIRECT_CRB) && 396 (off < QLA82XX_PCI_CAMQM_MAX)) 397 return off; 398 } 399 /* strange address given */ 400 qla_printk(KERN_WARNING, ha, 401 "%s: Warning: unm_nic_pci_set_crbwindow called with" 402 " an unknown address(%llx)\n", QLA2XXX_DRIVER_NAME, off); 403 return off; 404 } 405 406 static int 407 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off) 408 { 409 struct crb_128M_2M_sub_block_map *m; 410 411 if (*off >= QLA82XX_CRB_MAX) 412 return -1; 413 414 if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) { 415 *off = (*off - QLA82XX_PCI_CAMQM) + 416 QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase; 417 return 0; 418 } 419 420 if (*off < QLA82XX_PCI_CRBSPACE) 421 return -1; 422 423 *off -= QLA82XX_PCI_CRBSPACE; 424 425 /* Try direct map */ 426 m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)]; 427 428 if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) { 429 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase; 430 return 0; 431 } 432 /* Not in direct map, use crb window */ 433 return 1; 434 } 435 436 #define CRB_WIN_LOCK_TIMEOUT 100000000 437 static int qla82xx_crb_win_lock(struct qla_hw_data *ha) 438 { 439 int done = 0, timeout = 0; 440 441 while (!done) { 442 /* acquire semaphore3 from PCI HW block */ 443 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK)); 444 if (done == 1) 445 break; 446 if (timeout >= CRB_WIN_LOCK_TIMEOUT) 447 return -1; 448 timeout++; 449 } 450 qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum); 451 return 0; 452 } 453 454 int 455 qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data) 456 { 457 unsigned long flags = 0; 458 int rv; 459 460 rv = qla82xx_pci_get_crb_addr_2M(ha, &off); 461 462 BUG_ON(rv == -1); 463 464 if (rv == 1) { 465 write_lock_irqsave(&ha->hw_lock, flags); 466 qla82xx_crb_win_lock(ha); 467 qla82xx_pci_set_crbwindow_2M(ha, &off); 468 } 469 470 writel(data, (void __iomem *)off); 471 472 if (rv == 1) { 473 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK)); 474 write_unlock_irqrestore(&ha->hw_lock, flags); 475 } 476 return 0; 477 } 478 479 int 480 qla82xx_rd_32(struct qla_hw_data *ha, ulong off) 481 { 482 unsigned long flags = 0; 483 int rv; 484 u32 data; 485 486 rv = qla82xx_pci_get_crb_addr_2M(ha, &off); 487 488 BUG_ON(rv == -1); 489 490 if (rv == 1) { 491 write_lock_irqsave(&ha->hw_lock, flags); 492 qla82xx_crb_win_lock(ha); 493 qla82xx_pci_set_crbwindow_2M(ha, &off); 494 } 495 data = RD_REG_DWORD((void __iomem *)off); 496 497 if (rv == 1) { 498 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK)); 499 write_unlock_irqrestore(&ha->hw_lock, flags); 500 } 501 return data; 502 } 503 504 #define IDC_LOCK_TIMEOUT 100000000 505 int qla82xx_idc_lock(struct qla_hw_data *ha) 506 { 507 int i; 508 int done = 0, timeout = 0; 509 510 while (!done) { 511 /* acquire semaphore5 from PCI HW block */ 512 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK)); 513 if (done == 1) 514 break; 515 if (timeout >= IDC_LOCK_TIMEOUT) 516 return -1; 517 518 timeout++; 519 520 /* Yield CPU */ 521 if (!in_interrupt()) 522 schedule(); 523 else { 524 for (i = 0; i < 20; i++) 525 cpu_relax(); 526 } 527 } 528 529 return 0; 530 } 531 532 void qla82xx_idc_unlock(struct qla_hw_data *ha) 533 { 534 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK)); 535 } 536 537 /* PCI Windowing for DDR regions. */ 538 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \ 539 (((addr) <= (high)) && ((addr) >= (low))) 540 /* 541 * check memory access boundary. 542 * used by test agent. support ddr access only for now 543 */ 544 static unsigned long 545 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha, 546 unsigned long long addr, int size) 547 { 548 if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, 549 QLA82XX_ADDR_DDR_NET_MAX) || 550 !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET, 551 QLA82XX_ADDR_DDR_NET_MAX) || 552 ((size != 1) && (size != 2) && (size != 4) && (size != 8))) 553 return 0; 554 else 555 return 1; 556 } 557 558 int qla82xx_pci_set_window_warning_count; 559 560 static unsigned long 561 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr) 562 { 563 int window; 564 u32 win_read; 565 566 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, 567 QLA82XX_ADDR_DDR_NET_MAX)) { 568 /* DDR network side */ 569 window = MN_WIN(addr); 570 ha->ddr_mn_window = window; 571 qla82xx_wr_32(ha, 572 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window); 573 win_read = qla82xx_rd_32(ha, 574 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE); 575 if ((win_read << 17) != window) { 576 qla_printk(KERN_WARNING, ha, 577 "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n", 578 __func__, window, win_read); 579 } 580 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET; 581 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0, 582 QLA82XX_ADDR_OCM0_MAX)) { 583 unsigned int temp1; 584 if ((addr & 0x00ff800) == 0xff800) { 585 qla_printk(KERN_WARNING, ha, 586 "%s: QM access not handled.\n", __func__); 587 addr = -1UL; 588 } 589 window = OCM_WIN(addr); 590 ha->ddr_mn_window = window; 591 qla82xx_wr_32(ha, 592 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window); 593 win_read = qla82xx_rd_32(ha, 594 ha->mn_win_crb | QLA82XX_PCI_CRBSPACE); 595 temp1 = ((window & 0x1FF) << 7) | 596 ((window & 0x0FFFE0000) >> 17); 597 if (win_read != temp1) { 598 qla_printk(KERN_WARNING, ha, 599 "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x)\n", 600 __func__, temp1, win_read); 601 } 602 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M; 603 604 } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, 605 QLA82XX_P3_ADDR_QDR_NET_MAX)) { 606 /* QDR network side */ 607 window = MS_WIN(addr); 608 ha->qdr_sn_window = window; 609 qla82xx_wr_32(ha, 610 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window); 611 win_read = qla82xx_rd_32(ha, 612 ha->ms_win_crb | QLA82XX_PCI_CRBSPACE); 613 if (win_read != window) { 614 qla_printk(KERN_WARNING, ha, 615 "%s: Written MSwin (0x%x) != Read MSwin (0x%x)\n", 616 __func__, window, win_read); 617 } 618 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET; 619 } else { 620 /* 621 * peg gdb frequently accesses memory that doesn't exist, 622 * this limits the chit chat so debugging isn't slowed down. 623 */ 624 if ((qla82xx_pci_set_window_warning_count++ < 8) || 625 (qla82xx_pci_set_window_warning_count%64 == 0)) { 626 qla_printk(KERN_WARNING, ha, 627 "%s: Warning:%s Unknown address range!\n", __func__, 628 QLA2XXX_DRIVER_NAME); 629 } 630 addr = -1UL; 631 } 632 return addr; 633 } 634 635 /* check if address is in the same windows as the previous access */ 636 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha, 637 unsigned long long addr) 638 { 639 int window; 640 unsigned long long qdr_max; 641 642 qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX; 643 644 /* DDR network side */ 645 if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, 646 QLA82XX_ADDR_DDR_NET_MAX)) 647 BUG(); 648 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0, 649 QLA82XX_ADDR_OCM0_MAX)) 650 return 1; 651 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1, 652 QLA82XX_ADDR_OCM1_MAX)) 653 return 1; 654 else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) { 655 /* QDR network side */ 656 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f; 657 if (ha->qdr_sn_window == window) 658 return 1; 659 } 660 return 0; 661 } 662 663 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha, 664 u64 off, void *data, int size) 665 { 666 unsigned long flags; 667 void *addr = NULL; 668 int ret = 0; 669 u64 start; 670 uint8_t *mem_ptr = NULL; 671 unsigned long mem_base; 672 unsigned long mem_page; 673 674 write_lock_irqsave(&ha->hw_lock, flags); 675 676 /* 677 * If attempting to access unknown address or straddle hw windows, 678 * do not access. 679 */ 680 start = qla82xx_pci_set_window(ha, off); 681 if ((start == -1UL) || 682 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) { 683 write_unlock_irqrestore(&ha->hw_lock, flags); 684 qla_printk(KERN_ERR, ha, 685 "%s out of bound pci memory access. " 686 "offset is 0x%llx\n", QLA2XXX_DRIVER_NAME, off); 687 return -1; 688 } 689 690 write_unlock_irqrestore(&ha->hw_lock, flags); 691 mem_base = pci_resource_start(ha->pdev, 0); 692 mem_page = start & PAGE_MASK; 693 /* Map two pages whenever user tries to access addresses in two 694 * consecutive pages. 695 */ 696 if (mem_page != ((start + size - 1) & PAGE_MASK)) 697 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2); 698 else 699 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE); 700 if (mem_ptr == 0UL) { 701 *(u8 *)data = 0; 702 return -1; 703 } 704 addr = mem_ptr; 705 addr += start & (PAGE_SIZE - 1); 706 write_lock_irqsave(&ha->hw_lock, flags); 707 708 switch (size) { 709 case 1: 710 *(u8 *)data = readb(addr); 711 break; 712 case 2: 713 *(u16 *)data = readw(addr); 714 break; 715 case 4: 716 *(u32 *)data = readl(addr); 717 break; 718 case 8: 719 *(u64 *)data = readq(addr); 720 break; 721 default: 722 ret = -1; 723 break; 724 } 725 write_unlock_irqrestore(&ha->hw_lock, flags); 726 727 if (mem_ptr) 728 iounmap(mem_ptr); 729 return ret; 730 } 731 732 static int 733 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha, 734 u64 off, void *data, int size) 735 { 736 unsigned long flags; 737 void *addr = NULL; 738 int ret = 0; 739 u64 start; 740 uint8_t *mem_ptr = NULL; 741 unsigned long mem_base; 742 unsigned long mem_page; 743 744 write_lock_irqsave(&ha->hw_lock, flags); 745 746 /* 747 * If attempting to access unknown address or straddle hw windows, 748 * do not access. 749 */ 750 start = qla82xx_pci_set_window(ha, off); 751 if ((start == -1UL) || 752 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) { 753 write_unlock_irqrestore(&ha->hw_lock, flags); 754 qla_printk(KERN_ERR, ha, 755 "%s out of bound pci memory access. " 756 "offset is 0x%llx\n", QLA2XXX_DRIVER_NAME, off); 757 return -1; 758 } 759 760 write_unlock_irqrestore(&ha->hw_lock, flags); 761 mem_base = pci_resource_start(ha->pdev, 0); 762 mem_page = start & PAGE_MASK; 763 /* Map two pages whenever user tries to access addresses in two 764 * consecutive pages. 765 */ 766 if (mem_page != ((start + size - 1) & PAGE_MASK)) 767 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2); 768 else 769 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE); 770 if (mem_ptr == 0UL) 771 return -1; 772 773 addr = mem_ptr; 774 addr += start & (PAGE_SIZE - 1); 775 write_lock_irqsave(&ha->hw_lock, flags); 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 static unsigned long 802 qla82xx_decode_crb_addr(unsigned long addr) 803 { 804 int i; 805 unsigned long base_addr, offset, pci_base; 806 807 if (!qla82xx_crb_table_initialized) 808 qla82xx_crb_addr_transform_setup(); 809 810 pci_base = ADDR_ERROR; 811 base_addr = addr & 0xfff00000; 812 offset = addr & 0x000fffff; 813 814 for (i = 0; i < MAX_CRB_XFORM; i++) { 815 if (crb_addr_xform[i] == base_addr) { 816 pci_base = i << 20; 817 break; 818 } 819 } 820 if (pci_base == ADDR_ERROR) 821 return pci_base; 822 return pci_base + offset; 823 } 824 825 static long rom_max_timeout = 100; 826 static long qla82xx_rom_lock_timeout = 100; 827 828 static int 829 qla82xx_rom_lock(struct qla_hw_data *ha) 830 { 831 int done = 0, timeout = 0; 832 833 while (!done) { 834 /* acquire semaphore2 from PCI HW block */ 835 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK)); 836 if (done == 1) 837 break; 838 if (timeout >= qla82xx_rom_lock_timeout) 839 return -1; 840 timeout++; 841 } 842 qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER); 843 return 0; 844 } 845 846 static int 847 qla82xx_wait_rom_busy(struct qla_hw_data *ha) 848 { 849 long timeout = 0; 850 long done = 0 ; 851 852 while (done == 0) { 853 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS); 854 done &= 4; 855 timeout++; 856 if (timeout >= rom_max_timeout) { 857 DEBUG(qla_printk(KERN_INFO, ha, 858 "%s: Timeout reached waiting for rom busy", 859 QLA2XXX_DRIVER_NAME)); 860 return -1; 861 } 862 } 863 return 0; 864 } 865 866 static int 867 qla82xx_wait_rom_done(struct qla_hw_data *ha) 868 { 869 long timeout = 0; 870 long done = 0 ; 871 872 while (done == 0) { 873 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS); 874 done &= 2; 875 timeout++; 876 if (timeout >= rom_max_timeout) { 877 DEBUG(qla_printk(KERN_INFO, ha, 878 "%s: Timeout reached waiting for rom done", 879 QLA2XXX_DRIVER_NAME)); 880 return -1; 881 } 882 } 883 return 0; 884 } 885 886 static int 887 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp) 888 { 889 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr); 890 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); 891 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3); 892 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb); 893 qla82xx_wait_rom_busy(ha); 894 if (qla82xx_wait_rom_done(ha)) { 895 qla_printk(KERN_WARNING, ha, 896 "%s: Error waiting for rom done\n", 897 QLA2XXX_DRIVER_NAME); 898 return -1; 899 } 900 /* Reset abyte_cnt and dummy_byte_cnt */ 901 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); 902 udelay(10); 903 cond_resched(); 904 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0); 905 *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA); 906 return 0; 907 } 908 909 static int 910 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp) 911 { 912 int ret, loops = 0; 913 914 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) { 915 udelay(100); 916 schedule(); 917 loops++; 918 } 919 if (loops >= 50000) { 920 qla_printk(KERN_INFO, ha, 921 "%s: qla82xx_rom_lock failed\n", 922 QLA2XXX_DRIVER_NAME); 923 return -1; 924 } 925 ret = qla82xx_do_rom_fast_read(ha, addr, valp); 926 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 927 return ret; 928 } 929 930 static int 931 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val) 932 { 933 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR); 934 qla82xx_wait_rom_busy(ha); 935 if (qla82xx_wait_rom_done(ha)) { 936 qla_printk(KERN_WARNING, ha, 937 "Error waiting for rom done\n"); 938 return -1; 939 } 940 *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA); 941 return 0; 942 } 943 944 static int 945 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha) 946 { 947 long timeout = 0; 948 uint32_t done = 1 ; 949 uint32_t val; 950 int ret = 0; 951 952 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0); 953 while ((done != 0) && (ret == 0)) { 954 ret = qla82xx_read_status_reg(ha, &val); 955 done = val & 1; 956 timeout++; 957 udelay(10); 958 cond_resched(); 959 if (timeout >= 50000) { 960 qla_printk(KERN_WARNING, ha, 961 "Timeout reached waiting for write finish"); 962 return -1; 963 } 964 } 965 return ret; 966 } 967 968 static int 969 qla82xx_flash_set_write_enable(struct qla_hw_data *ha) 970 { 971 uint32_t val; 972 qla82xx_wait_rom_busy(ha); 973 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0); 974 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN); 975 qla82xx_wait_rom_busy(ha); 976 if (qla82xx_wait_rom_done(ha)) 977 return -1; 978 if (qla82xx_read_status_reg(ha, &val) != 0) 979 return -1; 980 if ((val & 2) != 2) 981 return -1; 982 return 0; 983 } 984 985 static int 986 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val) 987 { 988 if (qla82xx_flash_set_write_enable(ha)) 989 return -1; 990 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val); 991 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1); 992 if (qla82xx_wait_rom_done(ha)) { 993 qla_printk(KERN_WARNING, ha, 994 "Error waiting for rom done\n"); 995 return -1; 996 } 997 return qla82xx_flash_wait_write_finish(ha); 998 } 999 1000 static int 1001 qla82xx_write_disable_flash(struct qla_hw_data *ha) 1002 { 1003 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI); 1004 if (qla82xx_wait_rom_done(ha)) { 1005 qla_printk(KERN_WARNING, ha, 1006 "Error waiting for rom done\n"); 1007 return -1; 1008 } 1009 return 0; 1010 } 1011 1012 static int 1013 ql82xx_rom_lock_d(struct qla_hw_data *ha) 1014 { 1015 int loops = 0; 1016 while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) { 1017 udelay(100); 1018 cond_resched(); 1019 loops++; 1020 } 1021 if (loops >= 50000) { 1022 qla_printk(KERN_WARNING, ha, "ROM lock failed\n"); 1023 return -1; 1024 } 1025 return 0;; 1026 } 1027 1028 static int 1029 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr, 1030 uint32_t data) 1031 { 1032 int ret = 0; 1033 1034 ret = ql82xx_rom_lock_d(ha); 1035 if (ret < 0) { 1036 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n"); 1037 return ret; 1038 } 1039 1040 if (qla82xx_flash_set_write_enable(ha)) 1041 goto done_write; 1042 1043 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data); 1044 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr); 1045 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3); 1046 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP); 1047 qla82xx_wait_rom_busy(ha); 1048 if (qla82xx_wait_rom_done(ha)) { 1049 qla_printk(KERN_WARNING, ha, 1050 "Error waiting for rom done\n"); 1051 ret = -1; 1052 goto done_write; 1053 } 1054 1055 ret = qla82xx_flash_wait_write_finish(ha); 1056 1057 done_write: 1058 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 1059 return ret; 1060 } 1061 1062 /* This routine does CRB initialize sequence 1063 * to put the ISP into operational state 1064 */ 1065 static int 1066 qla82xx_pinit_from_rom(scsi_qla_host_t *vha) 1067 { 1068 int addr, val; 1069 int i ; 1070 struct crb_addr_pair *buf; 1071 unsigned long off; 1072 unsigned offset, n; 1073 struct qla_hw_data *ha = vha->hw; 1074 1075 struct crb_addr_pair { 1076 long addr; 1077 long data; 1078 }; 1079 1080 /* Halt all the indiviual PEGs and other blocks of the ISP */ 1081 qla82xx_rom_lock(ha); 1082 1083 /* mask all niu interrupts */ 1084 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff); 1085 /* disable xge rx/tx */ 1086 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00); 1087 /* disable xg1 rx/tx */ 1088 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00); 1089 1090 /* halt sre */ 1091 val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000); 1092 qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1))); 1093 1094 /* halt epg */ 1095 qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1); 1096 1097 /* halt timers */ 1098 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0); 1099 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0); 1100 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0); 1101 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0); 1102 qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0); 1103 1104 /* halt pegs */ 1105 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1); 1106 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1); 1107 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1); 1108 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1); 1109 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1); 1110 1111 /* big hammer */ 1112 msleep(1000); 1113 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 1114 /* don't reset CAM block on reset */ 1115 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff); 1116 else 1117 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff); 1118 1119 /* reset ms */ 1120 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4); 1121 val |= (1 << 1); 1122 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val); 1123 msleep(20); 1124 1125 /* unreset ms */ 1126 val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4); 1127 val &= ~(1 << 1); 1128 qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val); 1129 msleep(20); 1130 1131 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 1132 1133 /* Read the signature value from the flash. 1134 * Offset 0: Contain signature (0xcafecafe) 1135 * Offset 4: Offset and number of addr/value pairs 1136 * that present in CRB initialize sequence 1137 */ 1138 if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL || 1139 qla82xx_rom_fast_read(ha, 4, &n) != 0) { 1140 qla_printk(KERN_WARNING, ha, 1141 "[ERROR] Reading crb_init area: n: %08x\n", n); 1142 return -1; 1143 } 1144 1145 /* Offset in flash = lower 16 bits 1146 * Number of enteries = upper 16 bits 1147 */ 1148 offset = n & 0xffffU; 1149 n = (n >> 16) & 0xffffU; 1150 1151 /* number of addr/value pair should not exceed 1024 enteries */ 1152 if (n >= 1024) { 1153 qla_printk(KERN_WARNING, ha, 1154 "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n", 1155 QLA2XXX_DRIVER_NAME, __func__, n); 1156 return -1; 1157 } 1158 1159 qla_printk(KERN_INFO, ha, 1160 "%s: %d CRB init values found in ROM.\n", QLA2XXX_DRIVER_NAME, n); 1161 1162 buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL); 1163 if (buf == NULL) { 1164 qla_printk(KERN_WARNING, ha, 1165 "%s: [ERROR] Unable to malloc memory.\n", 1166 QLA2XXX_DRIVER_NAME); 1167 return -1; 1168 } 1169 1170 for (i = 0; i < n; i++) { 1171 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 || 1172 qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) { 1173 kfree(buf); 1174 return -1; 1175 } 1176 1177 buf[i].addr = addr; 1178 buf[i].data = val; 1179 } 1180 1181 for (i = 0; i < n; i++) { 1182 /* Translate internal CRB initialization 1183 * address to PCI bus address 1184 */ 1185 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) + 1186 QLA82XX_PCI_CRBSPACE; 1187 /* Not all CRB addr/value pair to be written, 1188 * some of them are skipped 1189 */ 1190 1191 /* skipping cold reboot MAGIC */ 1192 if (off == QLA82XX_CAM_RAM(0x1fc)) 1193 continue; 1194 1195 /* do not reset PCI */ 1196 if (off == (ROMUSB_GLB + 0xbc)) 1197 continue; 1198 1199 /* skip core clock, so that firmware can increase the clock */ 1200 if (off == (ROMUSB_GLB + 0xc8)) 1201 continue; 1202 1203 /* skip the function enable register */ 1204 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION)) 1205 continue; 1206 1207 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2)) 1208 continue; 1209 1210 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB) 1211 continue; 1212 1213 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET) 1214 continue; 1215 1216 if (off == ADDR_ERROR) { 1217 qla_printk(KERN_WARNING, ha, 1218 "%s: [ERROR] Unknown addr: 0x%08lx\n", 1219 QLA2XXX_DRIVER_NAME, buf[i].addr); 1220 continue; 1221 } 1222 1223 qla82xx_wr_32(ha, off, buf[i].data); 1224 1225 /* ISP requires much bigger delay to settle down, 1226 * else crb_window returns 0xffffffff 1227 */ 1228 if (off == QLA82XX_ROMUSB_GLB_SW_RESET) 1229 msleep(1000); 1230 1231 /* ISP requires millisec delay between 1232 * successive CRB register updation 1233 */ 1234 msleep(1); 1235 } 1236 1237 kfree(buf); 1238 1239 /* Resetting the data and instruction cache */ 1240 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e); 1241 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8); 1242 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8); 1243 1244 /* Clear all protocol processing engines */ 1245 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0); 1246 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0); 1247 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0); 1248 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0); 1249 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0); 1250 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0); 1251 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0); 1252 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0); 1253 return 0; 1254 } 1255 1256 static int 1257 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha, 1258 u64 off, void *data, int size) 1259 { 1260 int i, j, ret = 0, loop, sz[2], off0; 1261 int scale, shift_amount, startword; 1262 uint32_t temp; 1263 uint64_t off8, mem_crb, tmpw, word[2] = {0, 0}; 1264 1265 /* 1266 * If not MN, go check for MS or invalid. 1267 */ 1268 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX) 1269 mem_crb = QLA82XX_CRB_QDR_NET; 1270 else { 1271 mem_crb = QLA82XX_CRB_DDR_NET; 1272 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0) 1273 return qla82xx_pci_mem_write_direct(ha, 1274 off, data, size); 1275 } 1276 1277 off0 = off & 0x7; 1278 sz[0] = (size < (8 - off0)) ? size : (8 - off0); 1279 sz[1] = size - sz[0]; 1280 1281 off8 = off & 0xfffffff0; 1282 loop = (((off & 0xf) + size - 1) >> 4) + 1; 1283 shift_amount = 4; 1284 scale = 2; 1285 startword = (off & 0xf)/8; 1286 1287 for (i = 0; i < loop; i++) { 1288 if (qla82xx_pci_mem_read_2M(ha, off8 + 1289 (i << shift_amount), &word[i * scale], 8)) 1290 return -1; 1291 } 1292 1293 switch (size) { 1294 case 1: 1295 tmpw = *((uint8_t *)data); 1296 break; 1297 case 2: 1298 tmpw = *((uint16_t *)data); 1299 break; 1300 case 4: 1301 tmpw = *((uint32_t *)data); 1302 break; 1303 case 8: 1304 default: 1305 tmpw = *((uint64_t *)data); 1306 break; 1307 } 1308 1309 if (sz[0] == 8) { 1310 word[startword] = tmpw; 1311 } else { 1312 word[startword] &= 1313 ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8)); 1314 word[startword] |= tmpw << (off0 * 8); 1315 } 1316 if (sz[1] != 0) { 1317 word[startword+1] &= ~(~0ULL << (sz[1] * 8)); 1318 word[startword+1] |= tmpw >> (sz[0] * 8); 1319 } 1320 1321 for (i = 0; i < loop; i++) { 1322 temp = off8 + (i << shift_amount); 1323 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp); 1324 temp = 0; 1325 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp); 1326 temp = word[i * scale] & 0xffffffff; 1327 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp); 1328 temp = (word[i * scale] >> 32) & 0xffffffff; 1329 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp); 1330 temp = word[i*scale + 1] & 0xffffffff; 1331 qla82xx_wr_32(ha, mem_crb + 1332 MIU_TEST_AGT_WRDATA_UPPER_LO, temp); 1333 temp = (word[i*scale + 1] >> 32) & 0xffffffff; 1334 qla82xx_wr_32(ha, mem_crb + 1335 MIU_TEST_AGT_WRDATA_UPPER_HI, temp); 1336 1337 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE; 1338 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp); 1339 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE; 1340 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp); 1341 1342 for (j = 0; j < MAX_CTL_CHECK; j++) { 1343 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL); 1344 if ((temp & MIU_TA_CTL_BUSY) == 0) 1345 break; 1346 } 1347 1348 if (j >= MAX_CTL_CHECK) { 1349 if (printk_ratelimit()) 1350 dev_err(&ha->pdev->dev, 1351 "failed to write through agent\n"); 1352 ret = -1; 1353 break; 1354 } 1355 } 1356 1357 return ret; 1358 } 1359 1360 static int 1361 qla82xx_fw_load_from_flash(struct qla_hw_data *ha) 1362 { 1363 int i; 1364 long size = 0; 1365 long flashaddr = ha->flt_region_bootload << 2; 1366 long memaddr = BOOTLD_START; 1367 u64 data; 1368 u32 high, low; 1369 size = (IMAGE_START - BOOTLD_START) / 8; 1370 1371 for (i = 0; i < size; i++) { 1372 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) || 1373 (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) { 1374 return -1; 1375 } 1376 data = ((u64)high << 32) | low ; 1377 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8); 1378 flashaddr += 8; 1379 memaddr += 8; 1380 1381 if (i % 0x1000 == 0) 1382 msleep(1); 1383 } 1384 udelay(100); 1385 read_lock(&ha->hw_lock); 1386 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020); 1387 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e); 1388 read_unlock(&ha->hw_lock); 1389 return 0; 1390 } 1391 1392 int 1393 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha, 1394 u64 off, void *data, int size) 1395 { 1396 int i, j = 0, k, start, end, loop, sz[2], off0[2]; 1397 int shift_amount; 1398 uint32_t temp; 1399 uint64_t off8, val, mem_crb, word[2] = {0, 0}; 1400 1401 /* 1402 * If not MN, go check for MS or invalid. 1403 */ 1404 1405 if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX) 1406 mem_crb = QLA82XX_CRB_QDR_NET; 1407 else { 1408 mem_crb = QLA82XX_CRB_DDR_NET; 1409 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0) 1410 return qla82xx_pci_mem_read_direct(ha, 1411 off, data, size); 1412 } 1413 1414 off8 = off & 0xfffffff0; 1415 off0[0] = off & 0xf; 1416 sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]); 1417 shift_amount = 4; 1418 loop = ((off0[0] + size - 1) >> shift_amount) + 1; 1419 off0[1] = 0; 1420 sz[1] = size - sz[0]; 1421 1422 for (i = 0; i < loop; i++) { 1423 temp = off8 + (i << shift_amount); 1424 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp); 1425 temp = 0; 1426 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp); 1427 temp = MIU_TA_CTL_ENABLE; 1428 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp); 1429 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE; 1430 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp); 1431 1432 for (j = 0; j < MAX_CTL_CHECK; j++) { 1433 temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL); 1434 if ((temp & MIU_TA_CTL_BUSY) == 0) 1435 break; 1436 } 1437 1438 if (j >= MAX_CTL_CHECK) { 1439 if (printk_ratelimit()) 1440 dev_err(&ha->pdev->dev, 1441 "failed to read through agent\n"); 1442 break; 1443 } 1444 1445 start = off0[i] >> 2; 1446 end = (off0[i] + sz[i] - 1) >> 2; 1447 for (k = start; k <= end; k++) { 1448 temp = qla82xx_rd_32(ha, 1449 mem_crb + MIU_TEST_AGT_RDDATA(k)); 1450 word[i] |= ((uint64_t)temp << (32 * (k & 1))); 1451 } 1452 } 1453 1454 if (j >= MAX_CTL_CHECK) 1455 return -1; 1456 1457 if ((off0[0] & 7) == 0) { 1458 val = word[0]; 1459 } else { 1460 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) | 1461 ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8)); 1462 } 1463 1464 switch (size) { 1465 case 1: 1466 *(uint8_t *)data = val; 1467 break; 1468 case 2: 1469 *(uint16_t *)data = val; 1470 break; 1471 case 4: 1472 *(uint32_t *)data = val; 1473 break; 1474 case 8: 1475 *(uint64_t *)data = val; 1476 break; 1477 } 1478 return 0; 1479 } 1480 1481 1482 static struct qla82xx_uri_table_desc * 1483 qla82xx_get_table_desc(const u8 *unirom, int section) 1484 { 1485 uint32_t i; 1486 struct qla82xx_uri_table_desc *directory = 1487 (struct qla82xx_uri_table_desc *)&unirom[0]; 1488 __le32 offset; 1489 __le32 tab_type; 1490 __le32 entries = cpu_to_le32(directory->num_entries); 1491 1492 for (i = 0; i < entries; i++) { 1493 offset = cpu_to_le32(directory->findex) + 1494 (i * cpu_to_le32(directory->entry_size)); 1495 tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8)); 1496 1497 if (tab_type == section) 1498 return (struct qla82xx_uri_table_desc *)&unirom[offset]; 1499 } 1500 1501 return NULL; 1502 } 1503 1504 static struct qla82xx_uri_data_desc * 1505 qla82xx_get_data_desc(struct qla_hw_data *ha, 1506 u32 section, u32 idx_offset) 1507 { 1508 const u8 *unirom = ha->hablob->fw->data; 1509 int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset)); 1510 struct qla82xx_uri_table_desc *tab_desc = NULL; 1511 __le32 offset; 1512 1513 tab_desc = qla82xx_get_table_desc(unirom, section); 1514 if (!tab_desc) 1515 return NULL; 1516 1517 offset = cpu_to_le32(tab_desc->findex) + 1518 (cpu_to_le32(tab_desc->entry_size) * idx); 1519 1520 return (struct qla82xx_uri_data_desc *)&unirom[offset]; 1521 } 1522 1523 static u8 * 1524 qla82xx_get_bootld_offset(struct qla_hw_data *ha) 1525 { 1526 u32 offset = BOOTLD_START; 1527 struct qla82xx_uri_data_desc *uri_desc = NULL; 1528 1529 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) { 1530 uri_desc = qla82xx_get_data_desc(ha, 1531 QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF); 1532 if (uri_desc) 1533 offset = cpu_to_le32(uri_desc->findex); 1534 } 1535 1536 return (u8 *)&ha->hablob->fw->data[offset]; 1537 } 1538 1539 static __le32 1540 qla82xx_get_fw_size(struct qla_hw_data *ha) 1541 { 1542 struct qla82xx_uri_data_desc *uri_desc = NULL; 1543 1544 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) { 1545 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW, 1546 QLA82XX_URI_FIRMWARE_IDX_OFF); 1547 if (uri_desc) 1548 return cpu_to_le32(uri_desc->size); 1549 } 1550 1551 return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]); 1552 } 1553 1554 static u8 * 1555 qla82xx_get_fw_offs(struct qla_hw_data *ha) 1556 { 1557 u32 offset = IMAGE_START; 1558 struct qla82xx_uri_data_desc *uri_desc = NULL; 1559 1560 if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) { 1561 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW, 1562 QLA82XX_URI_FIRMWARE_IDX_OFF); 1563 if (uri_desc) 1564 offset = cpu_to_le32(uri_desc->findex); 1565 } 1566 1567 return (u8 *)&ha->hablob->fw->data[offset]; 1568 } 1569 1570 /* PCI related functions */ 1571 char * 1572 qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str) 1573 { 1574 int pcie_reg; 1575 struct qla_hw_data *ha = vha->hw; 1576 char lwstr[6]; 1577 uint16_t lnk; 1578 1579 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP); 1580 pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk); 1581 ha->link_width = (lnk >> 4) & 0x3f; 1582 1583 strcpy(str, "PCIe ("); 1584 strcat(str, "2.5Gb/s "); 1585 snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width); 1586 strcat(str, lwstr); 1587 return str; 1588 } 1589 1590 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region) 1591 { 1592 unsigned long val = 0; 1593 u32 control; 1594 1595 switch (region) { 1596 case 0: 1597 val = 0; 1598 break; 1599 case 1: 1600 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control); 1601 val = control + QLA82XX_MSIX_TBL_SPACE; 1602 break; 1603 } 1604 return val; 1605 } 1606 1607 1608 int 1609 qla82xx_iospace_config(struct qla_hw_data *ha) 1610 { 1611 uint32_t len = 0; 1612 1613 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) { 1614 qla_printk(KERN_WARNING, ha, 1615 "Failed to reserve selected regions (%s)\n", 1616 pci_name(ha->pdev)); 1617 goto iospace_error_exit; 1618 } 1619 1620 /* Use MMIO operations for all accesses. */ 1621 if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) { 1622 qla_printk(KERN_ERR, ha, 1623 "region #0 not an MMIO resource (%s), aborting\n", 1624 pci_name(ha->pdev)); 1625 goto iospace_error_exit; 1626 } 1627 1628 len = pci_resource_len(ha->pdev, 0); 1629 ha->nx_pcibase = 1630 (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len); 1631 if (!ha->nx_pcibase) { 1632 qla_printk(KERN_ERR, ha, 1633 "cannot remap pcibase MMIO (%s), aborting\n", 1634 pci_name(ha->pdev)); 1635 pci_release_regions(ha->pdev); 1636 goto iospace_error_exit; 1637 } 1638 1639 /* Mapping of IO base pointer */ 1640 ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase + 1641 0xbc000 + (ha->pdev->devfn << 11)); 1642 1643 if (!ql2xdbwr) { 1644 ha->nxdb_wr_ptr = 1645 (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) + 1646 (ha->pdev->devfn << 12)), 4); 1647 if (!ha->nxdb_wr_ptr) { 1648 qla_printk(KERN_ERR, ha, 1649 "cannot remap MMIO (%s), aborting\n", 1650 pci_name(ha->pdev)); 1651 pci_release_regions(ha->pdev); 1652 goto iospace_error_exit; 1653 } 1654 1655 /* Mapping of IO base pointer, 1656 * door bell read and write pointer 1657 */ 1658 ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) + 1659 (ha->pdev->devfn * 8); 1660 } else { 1661 ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ? 1662 QLA82XX_CAMRAM_DB1 : 1663 QLA82XX_CAMRAM_DB2); 1664 } 1665 1666 ha->max_req_queues = ha->max_rsp_queues = 1; 1667 ha->msix_count = ha->max_rsp_queues + 1; 1668 return 0; 1669 1670 iospace_error_exit: 1671 return -ENOMEM; 1672 } 1673 1674 /* GS related functions */ 1675 1676 /* Initialization related functions */ 1677 1678 /** 1679 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers. 1680 * @ha: HA context 1681 * 1682 * Returns 0 on success. 1683 */ 1684 int 1685 qla82xx_pci_config(scsi_qla_host_t *vha) 1686 { 1687 struct qla_hw_data *ha = vha->hw; 1688 int ret; 1689 1690 pci_set_master(ha->pdev); 1691 ret = pci_set_mwi(ha->pdev); 1692 ha->chip_revision = ha->pdev->revision; 1693 return 0; 1694 } 1695 1696 /** 1697 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers. 1698 * @ha: HA context 1699 * 1700 * Returns 0 on success. 1701 */ 1702 void 1703 qla82xx_reset_chip(scsi_qla_host_t *vha) 1704 { 1705 struct qla_hw_data *ha = vha->hw; 1706 ha->isp_ops->disable_intrs(ha); 1707 } 1708 1709 void qla82xx_config_rings(struct scsi_qla_host *vha) 1710 { 1711 struct qla_hw_data *ha = vha->hw; 1712 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 1713 struct init_cb_81xx *icb; 1714 struct req_que *req = ha->req_q_map[0]; 1715 struct rsp_que *rsp = ha->rsp_q_map[0]; 1716 1717 /* Setup ring parameters in initialization control block. */ 1718 icb = (struct init_cb_81xx *)ha->init_cb; 1719 icb->request_q_outpointer = __constant_cpu_to_le16(0); 1720 icb->response_q_inpointer = __constant_cpu_to_le16(0); 1721 icb->request_q_length = cpu_to_le16(req->length); 1722 icb->response_q_length = cpu_to_le16(rsp->length); 1723 icb->request_q_address[0] = cpu_to_le32(LSD(req->dma)); 1724 icb->request_q_address[1] = cpu_to_le32(MSD(req->dma)); 1725 icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma)); 1726 icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma)); 1727 1728 WRT_REG_DWORD((unsigned long __iomem *)®->req_q_out[0], 0); 1729 WRT_REG_DWORD((unsigned long __iomem *)®->rsp_q_in[0], 0); 1730 WRT_REG_DWORD((unsigned long __iomem *)®->rsp_q_out[0], 0); 1731 } 1732 1733 void qla82xx_reset_adapter(struct scsi_qla_host *vha) 1734 { 1735 struct qla_hw_data *ha = vha->hw; 1736 vha->flags.online = 0; 1737 qla2x00_try_to_stop_firmware(vha); 1738 ha->isp_ops->disable_intrs(ha); 1739 } 1740 1741 static int 1742 qla82xx_fw_load_from_blob(struct qla_hw_data *ha) 1743 { 1744 u64 *ptr64; 1745 u32 i, flashaddr, size; 1746 __le64 data; 1747 1748 size = (IMAGE_START - BOOTLD_START) / 8; 1749 1750 ptr64 = (u64 *)qla82xx_get_bootld_offset(ha); 1751 flashaddr = BOOTLD_START; 1752 1753 for (i = 0; i < size; i++) { 1754 data = cpu_to_le64(ptr64[i]); 1755 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8)) 1756 return -EIO; 1757 flashaddr += 8; 1758 } 1759 1760 flashaddr = FLASH_ADDR_START; 1761 size = (__force u32)qla82xx_get_fw_size(ha) / 8; 1762 ptr64 = (u64 *)qla82xx_get_fw_offs(ha); 1763 1764 for (i = 0; i < size; i++) { 1765 data = cpu_to_le64(ptr64[i]); 1766 1767 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8)) 1768 return -EIO; 1769 flashaddr += 8; 1770 } 1771 udelay(100); 1772 1773 /* Write a magic value to CAMRAM register 1774 * at a specified offset to indicate 1775 * that all data is written and 1776 * ready for firmware to initialize. 1777 */ 1778 qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC); 1779 1780 read_lock(&ha->hw_lock); 1781 qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020); 1782 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e); 1783 read_unlock(&ha->hw_lock); 1784 return 0; 1785 } 1786 1787 static int 1788 qla82xx_set_product_offset(struct qla_hw_data *ha) 1789 { 1790 struct qla82xx_uri_table_desc *ptab_desc = NULL; 1791 const uint8_t *unirom = ha->hablob->fw->data; 1792 uint32_t i; 1793 __le32 entries; 1794 __le32 flags, file_chiprev, offset; 1795 uint8_t chiprev = ha->chip_revision; 1796 /* Hardcoding mn_present flag for P3P */ 1797 int mn_present = 0; 1798 uint32_t flagbit; 1799 1800 ptab_desc = qla82xx_get_table_desc(unirom, 1801 QLA82XX_URI_DIR_SECT_PRODUCT_TBL); 1802 if (!ptab_desc) 1803 return -1; 1804 1805 entries = cpu_to_le32(ptab_desc->num_entries); 1806 1807 for (i = 0; i < entries; i++) { 1808 offset = cpu_to_le32(ptab_desc->findex) + 1809 (i * cpu_to_le32(ptab_desc->entry_size)); 1810 flags = cpu_to_le32(*((int *)&unirom[offset] + 1811 QLA82XX_URI_FLAGS_OFF)); 1812 file_chiprev = cpu_to_le32(*((int *)&unirom[offset] + 1813 QLA82XX_URI_CHIP_REV_OFF)); 1814 1815 flagbit = mn_present ? 1 : 2; 1816 1817 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) { 1818 ha->file_prd_off = offset; 1819 return 0; 1820 } 1821 } 1822 return -1; 1823 } 1824 1825 int 1826 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type) 1827 { 1828 __le32 val; 1829 uint32_t min_size; 1830 struct qla_hw_data *ha = vha->hw; 1831 const struct firmware *fw = ha->hablob->fw; 1832 1833 ha->fw_type = fw_type; 1834 1835 if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) { 1836 if (qla82xx_set_product_offset(ha)) 1837 return -EINVAL; 1838 1839 min_size = QLA82XX_URI_FW_MIN_SIZE; 1840 } else { 1841 val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]); 1842 if ((__force u32)val != QLA82XX_BDINFO_MAGIC) 1843 return -EINVAL; 1844 1845 min_size = QLA82XX_FW_MIN_SIZE; 1846 } 1847 1848 if (fw->size < min_size) 1849 return -EINVAL; 1850 return 0; 1851 } 1852 1853 static int 1854 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha) 1855 { 1856 u32 val = 0; 1857 int retries = 60; 1858 1859 do { 1860 read_lock(&ha->hw_lock); 1861 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE); 1862 read_unlock(&ha->hw_lock); 1863 1864 switch (val) { 1865 case PHAN_INITIALIZE_COMPLETE: 1866 case PHAN_INITIALIZE_ACK: 1867 return QLA_SUCCESS; 1868 case PHAN_INITIALIZE_FAILED: 1869 break; 1870 default: 1871 break; 1872 } 1873 qla_printk(KERN_WARNING, ha, 1874 "CRB_CMDPEG_STATE: 0x%x and retries: 0x%x\n", 1875 val, retries); 1876 1877 msleep(500); 1878 1879 } while (--retries); 1880 1881 qla_printk(KERN_INFO, ha, 1882 "Cmd Peg initialization failed: 0x%x.\n", val); 1883 1884 val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE); 1885 read_lock(&ha->hw_lock); 1886 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED); 1887 read_unlock(&ha->hw_lock); 1888 return QLA_FUNCTION_FAILED; 1889 } 1890 1891 static int 1892 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha) 1893 { 1894 u32 val = 0; 1895 int retries = 60; 1896 1897 do { 1898 read_lock(&ha->hw_lock); 1899 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE); 1900 read_unlock(&ha->hw_lock); 1901 1902 switch (val) { 1903 case PHAN_INITIALIZE_COMPLETE: 1904 case PHAN_INITIALIZE_ACK: 1905 return QLA_SUCCESS; 1906 case PHAN_INITIALIZE_FAILED: 1907 break; 1908 default: 1909 break; 1910 } 1911 1912 qla_printk(KERN_WARNING, ha, 1913 "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x\n", 1914 val, retries); 1915 1916 msleep(500); 1917 1918 } while (--retries); 1919 1920 qla_printk(KERN_INFO, ha, 1921 "Rcv Peg initialization failed: 0x%x.\n", val); 1922 read_lock(&ha->hw_lock); 1923 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED); 1924 read_unlock(&ha->hw_lock); 1925 return QLA_FUNCTION_FAILED; 1926 } 1927 1928 /* ISR related functions */ 1929 uint32_t qla82xx_isr_int_target_mask_enable[8] = { 1930 ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1, 1931 ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3, 1932 ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5, 1933 ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7 1934 }; 1935 1936 uint32_t qla82xx_isr_int_target_status[8] = { 1937 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 1938 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 1939 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 1940 ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7 1941 }; 1942 1943 static struct qla82xx_legacy_intr_set legacy_intr[] = \ 1944 QLA82XX_LEGACY_INTR_CONFIG; 1945 1946 /* 1947 * qla82xx_mbx_completion() - Process mailbox command completions. 1948 * @ha: SCSI driver HA context 1949 * @mb0: Mailbox0 register 1950 */ 1951 static void 1952 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 1953 { 1954 uint16_t cnt; 1955 uint16_t __iomem *wptr; 1956 struct qla_hw_data *ha = vha->hw; 1957 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 1958 wptr = (uint16_t __iomem *)®->mailbox_out[1]; 1959 1960 /* Load return mailbox registers. */ 1961 ha->flags.mbox_int = 1; 1962 ha->mailbox_out[0] = mb0; 1963 1964 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 1965 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 1966 wptr++; 1967 } 1968 1969 if (ha->mcp) { 1970 DEBUG3_11(printk(KERN_INFO "%s(%ld): " 1971 "Got mailbox completion. cmd=%x.\n", 1972 __func__, vha->host_no, ha->mcp->mb[0])); 1973 } else { 1974 qla_printk(KERN_INFO, ha, 1975 "%s(%ld): MBX pointer ERROR!\n", 1976 __func__, vha->host_no); 1977 } 1978 } 1979 1980 /* 1981 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 1982 * @irq: 1983 * @dev_id: SCSI driver HA context 1984 * @regs: 1985 * 1986 * Called by system whenever the host adapter generates an interrupt. 1987 * 1988 * Returns handled flag. 1989 */ 1990 irqreturn_t 1991 qla82xx_intr_handler(int irq, void *dev_id) 1992 { 1993 scsi_qla_host_t *vha; 1994 struct qla_hw_data *ha; 1995 struct rsp_que *rsp; 1996 struct device_reg_82xx __iomem *reg; 1997 int status = 0, status1 = 0; 1998 unsigned long flags; 1999 unsigned long iter; 2000 uint32_t stat; 2001 uint16_t mb[4]; 2002 2003 rsp = (struct rsp_que *) dev_id; 2004 if (!rsp) { 2005 printk(KERN_INFO 2006 "%s(): NULL response queue pointer\n", __func__); 2007 return IRQ_NONE; 2008 } 2009 ha = rsp->hw; 2010 2011 if (!ha->flags.msi_enabled) { 2012 status = qla82xx_rd_32(ha, ISR_INT_VECTOR); 2013 if (!(status & ha->nx_legacy_intr.int_vec_bit)) 2014 return IRQ_NONE; 2015 2016 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG); 2017 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1)) 2018 return IRQ_NONE; 2019 } 2020 2021 /* clear the interrupt */ 2022 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff); 2023 2024 /* read twice to ensure write is flushed */ 2025 qla82xx_rd_32(ha, ISR_INT_VECTOR); 2026 qla82xx_rd_32(ha, ISR_INT_VECTOR); 2027 2028 reg = &ha->iobase->isp82; 2029 2030 spin_lock_irqsave(&ha->hardware_lock, flags); 2031 vha = pci_get_drvdata(ha->pdev); 2032 for (iter = 1; iter--; ) { 2033 2034 if (RD_REG_DWORD(®->host_int)) { 2035 stat = RD_REG_DWORD(®->host_status); 2036 2037 switch (stat & 0xff) { 2038 case 0x1: 2039 case 0x2: 2040 case 0x10: 2041 case 0x11: 2042 qla82xx_mbx_completion(vha, MSW(stat)); 2043 status |= MBX_INTERRUPT; 2044 break; 2045 case 0x12: 2046 mb[0] = MSW(stat); 2047 mb[1] = RD_REG_WORD(®->mailbox_out[1]); 2048 mb[2] = RD_REG_WORD(®->mailbox_out[2]); 2049 mb[3] = RD_REG_WORD(®->mailbox_out[3]); 2050 qla2x00_async_event(vha, rsp, mb); 2051 break; 2052 case 0x13: 2053 qla24xx_process_response_queue(vha, rsp); 2054 break; 2055 default: 2056 DEBUG2(printk("scsi(%ld): " 2057 " Unrecognized interrupt type (%d).\n", 2058 vha->host_no, stat & 0xff)); 2059 break; 2060 } 2061 } 2062 WRT_REG_DWORD(®->host_int, 0); 2063 } 2064 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2065 if (!ha->flags.msi_enabled) 2066 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff); 2067 2068 #ifdef QL_DEBUG_LEVEL_17 2069 if (!irq && ha->flags.eeh_busy) 2070 qla_printk(KERN_WARNING, ha, 2071 "isr: status %x, cmd_flags %lx, mbox_int %x, stat %x\n", 2072 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat); 2073 #endif 2074 2075 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2076 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2077 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2078 complete(&ha->mbx_intr_comp); 2079 } 2080 return IRQ_HANDLED; 2081 } 2082 2083 irqreturn_t 2084 qla82xx_msix_default(int irq, void *dev_id) 2085 { 2086 scsi_qla_host_t *vha; 2087 struct qla_hw_data *ha; 2088 struct rsp_que *rsp; 2089 struct device_reg_82xx __iomem *reg; 2090 int status = 0; 2091 unsigned long flags; 2092 uint32_t stat; 2093 uint16_t mb[4]; 2094 2095 rsp = (struct rsp_que *) dev_id; 2096 if (!rsp) { 2097 printk(KERN_INFO 2098 "%s(): NULL response queue pointer\n", __func__); 2099 return IRQ_NONE; 2100 } 2101 ha = rsp->hw; 2102 2103 reg = &ha->iobase->isp82; 2104 2105 spin_lock_irqsave(&ha->hardware_lock, flags); 2106 vha = pci_get_drvdata(ha->pdev); 2107 do { 2108 if (RD_REG_DWORD(®->host_int)) { 2109 stat = RD_REG_DWORD(®->host_status); 2110 2111 switch (stat & 0xff) { 2112 case 0x1: 2113 case 0x2: 2114 case 0x10: 2115 case 0x11: 2116 qla82xx_mbx_completion(vha, MSW(stat)); 2117 status |= MBX_INTERRUPT; 2118 break; 2119 case 0x12: 2120 mb[0] = MSW(stat); 2121 mb[1] = RD_REG_WORD(®->mailbox_out[1]); 2122 mb[2] = RD_REG_WORD(®->mailbox_out[2]); 2123 mb[3] = RD_REG_WORD(®->mailbox_out[3]); 2124 qla2x00_async_event(vha, rsp, mb); 2125 break; 2126 case 0x13: 2127 qla24xx_process_response_queue(vha, rsp); 2128 break; 2129 default: 2130 DEBUG2(printk("scsi(%ld): " 2131 " Unrecognized interrupt type (%d).\n", 2132 vha->host_no, stat & 0xff)); 2133 break; 2134 } 2135 } 2136 WRT_REG_DWORD(®->host_int, 0); 2137 } while (0); 2138 2139 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2140 2141 #ifdef QL_DEBUG_LEVEL_17 2142 if (!irq && ha->flags.eeh_busy) 2143 qla_printk(KERN_WARNING, ha, 2144 "isr: status %x, cmd_flags %lx, mbox_int %x, stat %x\n", 2145 status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat); 2146 #endif 2147 2148 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2149 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2150 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2151 complete(&ha->mbx_intr_comp); 2152 } 2153 return IRQ_HANDLED; 2154 } 2155 2156 irqreturn_t 2157 qla82xx_msix_rsp_q(int irq, void *dev_id) 2158 { 2159 scsi_qla_host_t *vha; 2160 struct qla_hw_data *ha; 2161 struct rsp_que *rsp; 2162 struct device_reg_82xx __iomem *reg; 2163 2164 rsp = (struct rsp_que *) dev_id; 2165 if (!rsp) { 2166 printk(KERN_INFO 2167 "%s(): NULL response queue pointer\n", __func__); 2168 return IRQ_NONE; 2169 } 2170 2171 ha = rsp->hw; 2172 reg = &ha->iobase->isp82; 2173 spin_lock_irq(&ha->hardware_lock); 2174 vha = pci_get_drvdata(ha->pdev); 2175 qla24xx_process_response_queue(vha, rsp); 2176 WRT_REG_DWORD(®->host_int, 0); 2177 spin_unlock_irq(&ha->hardware_lock); 2178 return IRQ_HANDLED; 2179 } 2180 2181 void 2182 qla82xx_poll(int irq, void *dev_id) 2183 { 2184 scsi_qla_host_t *vha; 2185 struct qla_hw_data *ha; 2186 struct rsp_que *rsp; 2187 struct device_reg_82xx __iomem *reg; 2188 int status = 0; 2189 uint32_t stat; 2190 uint16_t mb[4]; 2191 unsigned long flags; 2192 2193 rsp = (struct rsp_que *) dev_id; 2194 if (!rsp) { 2195 printk(KERN_INFO 2196 "%s(): NULL response queue pointer\n", __func__); 2197 return; 2198 } 2199 ha = rsp->hw; 2200 2201 reg = &ha->iobase->isp82; 2202 spin_lock_irqsave(&ha->hardware_lock, flags); 2203 vha = pci_get_drvdata(ha->pdev); 2204 2205 if (RD_REG_DWORD(®->host_int)) { 2206 stat = RD_REG_DWORD(®->host_status); 2207 switch (stat & 0xff) { 2208 case 0x1: 2209 case 0x2: 2210 case 0x10: 2211 case 0x11: 2212 qla82xx_mbx_completion(vha, MSW(stat)); 2213 status |= MBX_INTERRUPT; 2214 break; 2215 case 0x12: 2216 mb[0] = MSW(stat); 2217 mb[1] = RD_REG_WORD(®->mailbox_out[1]); 2218 mb[2] = RD_REG_WORD(®->mailbox_out[2]); 2219 mb[3] = RD_REG_WORD(®->mailbox_out[3]); 2220 qla2x00_async_event(vha, rsp, mb); 2221 break; 2222 case 0x13: 2223 qla24xx_process_response_queue(vha, rsp); 2224 break; 2225 default: 2226 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2227 "(%d).\n", 2228 vha->host_no, stat & 0xff)); 2229 break; 2230 } 2231 } 2232 WRT_REG_DWORD(®->host_int, 0); 2233 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2234 } 2235 2236 void 2237 qla82xx_enable_intrs(struct qla_hw_data *ha) 2238 { 2239 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 2240 qla82xx_mbx_intr_enable(vha); 2241 spin_lock_irq(&ha->hardware_lock); 2242 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff); 2243 spin_unlock_irq(&ha->hardware_lock); 2244 ha->interrupts_on = 1; 2245 } 2246 2247 void 2248 qla82xx_disable_intrs(struct qla_hw_data *ha) 2249 { 2250 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 2251 qla82xx_mbx_intr_disable(vha); 2252 spin_lock_irq(&ha->hardware_lock); 2253 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400); 2254 spin_unlock_irq(&ha->hardware_lock); 2255 ha->interrupts_on = 0; 2256 } 2257 2258 void qla82xx_init_flags(struct qla_hw_data *ha) 2259 { 2260 struct qla82xx_legacy_intr_set *nx_legacy_intr; 2261 2262 /* ISP 8021 initializations */ 2263 rwlock_init(&ha->hw_lock); 2264 ha->qdr_sn_window = -1; 2265 ha->ddr_mn_window = -1; 2266 ha->curr_window = 255; 2267 ha->portnum = PCI_FUNC(ha->pdev->devfn); 2268 nx_legacy_intr = &legacy_intr[ha->portnum]; 2269 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 2270 ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg; 2271 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 2272 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 2273 } 2274 2275 inline void 2276 qla82xx_set_drv_active(scsi_qla_host_t *vha) 2277 { 2278 uint32_t drv_active; 2279 struct qla_hw_data *ha = vha->hw; 2280 2281 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 2282 2283 /* If reset value is all FF's, initialize DRV_ACTIVE */ 2284 if (drv_active == 0xffffffff) { 2285 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, 2286 QLA82XX_DRV_NOT_ACTIVE); 2287 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 2288 } 2289 drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4)); 2290 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active); 2291 } 2292 2293 inline void 2294 qla82xx_clear_drv_active(struct qla_hw_data *ha) 2295 { 2296 uint32_t drv_active; 2297 2298 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 2299 drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4)); 2300 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active); 2301 } 2302 2303 static inline int 2304 qla82xx_need_reset(struct qla_hw_data *ha) 2305 { 2306 uint32_t drv_state; 2307 int rval; 2308 2309 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 2310 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4)); 2311 return rval; 2312 } 2313 2314 static inline void 2315 qla82xx_set_rst_ready(struct qla_hw_data *ha) 2316 { 2317 uint32_t drv_state; 2318 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 2319 2320 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 2321 2322 /* If reset value is all FF's, initialize DRV_STATE */ 2323 if (drv_state == 0xffffffff) { 2324 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY); 2325 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 2326 } 2327 drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4)); 2328 qla_printk(KERN_INFO, ha, 2329 "%s(%ld):drv_state = 0x%x\n", 2330 __func__, vha->host_no, drv_state); 2331 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state); 2332 } 2333 2334 static inline void 2335 qla82xx_clear_rst_ready(struct qla_hw_data *ha) 2336 { 2337 uint32_t drv_state; 2338 2339 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 2340 drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4)); 2341 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state); 2342 } 2343 2344 static inline void 2345 qla82xx_set_qsnt_ready(struct qla_hw_data *ha) 2346 { 2347 uint32_t qsnt_state; 2348 2349 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 2350 qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4)); 2351 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state); 2352 } 2353 2354 void 2355 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha) 2356 { 2357 struct qla_hw_data *ha = vha->hw; 2358 uint32_t qsnt_state; 2359 2360 qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 2361 qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4)); 2362 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state); 2363 } 2364 2365 static int 2366 qla82xx_load_fw(scsi_qla_host_t *vha) 2367 { 2368 int rst; 2369 struct fw_blob *blob; 2370 struct qla_hw_data *ha = vha->hw; 2371 2372 if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) { 2373 qla_printk(KERN_ERR, ha, 2374 "%s: Error during CRB Initialization\n", __func__); 2375 return QLA_FUNCTION_FAILED; 2376 } 2377 udelay(500); 2378 2379 /* Bring QM and CAMRAM out of reset */ 2380 rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET); 2381 rst &= ~((1 << 28) | (1 << 24)); 2382 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst); 2383 2384 /* 2385 * FW Load priority: 2386 * 1) Operational firmware residing in flash. 2387 * 2) Firmware via request-firmware interface (.bin file). 2388 */ 2389 if (ql2xfwloadbin == 2) 2390 goto try_blob_fw; 2391 2392 qla_printk(KERN_INFO, ha, 2393 "Attempting to load firmware from flash\n"); 2394 2395 if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) { 2396 qla_printk(KERN_ERR, ha, 2397 "Firmware loaded successfully from flash\n"); 2398 return QLA_SUCCESS; 2399 } 2400 try_blob_fw: 2401 qla_printk(KERN_INFO, ha, 2402 "Attempting to load firmware from blob\n"); 2403 2404 /* Load firmware blob. */ 2405 blob = ha->hablob = qla2x00_request_firmware(vha); 2406 if (!blob) { 2407 qla_printk(KERN_ERR, ha, 2408 "Firmware image not present.\n"); 2409 goto fw_load_failed; 2410 } 2411 2412 /* Validating firmware blob */ 2413 if (qla82xx_validate_firmware_blob(vha, 2414 QLA82XX_FLASH_ROMIMAGE)) { 2415 /* Fallback to URI format */ 2416 if (qla82xx_validate_firmware_blob(vha, 2417 QLA82XX_UNIFIED_ROMIMAGE)) { 2418 qla_printk(KERN_ERR, ha, 2419 "No valid firmware image found!!!"); 2420 return QLA_FUNCTION_FAILED; 2421 } 2422 } 2423 2424 if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) { 2425 qla_printk(KERN_ERR, ha, 2426 "%s: Firmware loaded successfully " 2427 " from binary blob\n", __func__); 2428 return QLA_SUCCESS; 2429 } else { 2430 qla_printk(KERN_ERR, ha, 2431 "Firmware load failed from binary blob\n"); 2432 blob->fw = NULL; 2433 blob = NULL; 2434 goto fw_load_failed; 2435 } 2436 return QLA_SUCCESS; 2437 2438 fw_load_failed: 2439 return QLA_FUNCTION_FAILED; 2440 } 2441 2442 int 2443 qla82xx_start_firmware(scsi_qla_host_t *vha) 2444 { 2445 int pcie_cap; 2446 uint16_t lnk; 2447 struct qla_hw_data *ha = vha->hw; 2448 2449 /* scrub dma mask expansion register */ 2450 qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE); 2451 2452 /* Put both the PEG CMD and RCV PEG to default state 2453 * of 0 before resetting the hardware 2454 */ 2455 qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0); 2456 qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0); 2457 2458 /* Overwrite stale initialization register values */ 2459 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0); 2460 qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0); 2461 2462 if (qla82xx_load_fw(vha) != QLA_SUCCESS) { 2463 qla_printk(KERN_INFO, ha, 2464 "%s: Error trying to start fw!\n", __func__); 2465 return QLA_FUNCTION_FAILED; 2466 } 2467 2468 /* Handshake with the card before we register the devices. */ 2469 if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) { 2470 qla_printk(KERN_INFO, ha, 2471 "%s: Error during card handshake!\n", __func__); 2472 return QLA_FUNCTION_FAILED; 2473 } 2474 2475 /* Negotiated Link width */ 2476 pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP); 2477 pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk); 2478 ha->link_width = (lnk >> 4) & 0x3f; 2479 2480 /* Synchronize with Receive peg */ 2481 return qla82xx_check_rcvpeg_state(ha); 2482 } 2483 2484 static inline int 2485 qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, 2486 uint16_t tot_dsds) 2487 { 2488 uint32_t *cur_dsd = NULL; 2489 scsi_qla_host_t *vha; 2490 struct qla_hw_data *ha; 2491 struct scsi_cmnd *cmd; 2492 struct scatterlist *cur_seg; 2493 uint32_t *dsd_seg; 2494 void *next_dsd; 2495 uint8_t avail_dsds; 2496 uint8_t first_iocb = 1; 2497 uint32_t dsd_list_len; 2498 struct dsd_dma *dsd_ptr; 2499 struct ct6_dsd *ctx; 2500 2501 cmd = sp->cmd; 2502 2503 /* Update entry type to indicate Command Type 3 IOCB */ 2504 *((uint32_t *)(&cmd_pkt->entry_type)) = 2505 __constant_cpu_to_le32(COMMAND_TYPE_6); 2506 2507 /* No data transfer */ 2508 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 2509 cmd_pkt->byte_count = __constant_cpu_to_le32(0); 2510 return 0; 2511 } 2512 2513 vha = sp->fcport->vha; 2514 ha = vha->hw; 2515 2516 /* Set transfer direction */ 2517 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 2518 cmd_pkt->control_flags = 2519 __constant_cpu_to_le16(CF_WRITE_DATA); 2520 ha->qla_stats.output_bytes += scsi_bufflen(cmd); 2521 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 2522 cmd_pkt->control_flags = 2523 __constant_cpu_to_le16(CF_READ_DATA); 2524 ha->qla_stats.input_bytes += scsi_bufflen(cmd); 2525 } 2526 2527 cur_seg = scsi_sglist(cmd); 2528 ctx = sp->ctx; 2529 2530 while (tot_dsds) { 2531 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? 2532 QLA_DSDS_PER_IOCB : tot_dsds; 2533 tot_dsds -= avail_dsds; 2534 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; 2535 2536 dsd_ptr = list_first_entry(&ha->gbl_dsd_list, 2537 struct dsd_dma, list); 2538 next_dsd = dsd_ptr->dsd_addr; 2539 list_del(&dsd_ptr->list); 2540 ha->gbl_dsd_avail--; 2541 list_add_tail(&dsd_ptr->list, &ctx->dsd_list); 2542 ctx->dsd_use_cnt++; 2543 ha->gbl_dsd_inuse++; 2544 2545 if (first_iocb) { 2546 first_iocb = 0; 2547 dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; 2548 *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 2549 *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 2550 cmd_pkt->fcp_data_dseg_len = dsd_list_len; 2551 } else { 2552 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 2553 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 2554 *cur_dsd++ = dsd_list_len; 2555 } 2556 cur_dsd = (uint32_t *)next_dsd; 2557 while (avail_dsds) { 2558 dma_addr_t sle_dma; 2559 2560 sle_dma = sg_dma_address(cur_seg); 2561 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2562 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2563 *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); 2564 cur_seg = sg_next(cur_seg); 2565 avail_dsds--; 2566 } 2567 } 2568 2569 /* Null termination */ 2570 *cur_dsd++ = 0; 2571 *cur_dsd++ = 0; 2572 *cur_dsd++ = 0; 2573 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; 2574 return 0; 2575 } 2576 2577 /* 2578 * qla82xx_calc_dsd_lists() - Determine number of DSD list required 2579 * for Command Type 6. 2580 * 2581 * @dsds: number of data segment decriptors needed 2582 * 2583 * Returns the number of dsd list needed to store @dsds. 2584 */ 2585 inline uint16_t 2586 qla82xx_calc_dsd_lists(uint16_t dsds) 2587 { 2588 uint16_t dsd_lists = 0; 2589 2590 dsd_lists = (dsds/QLA_DSDS_PER_IOCB); 2591 if (dsds % QLA_DSDS_PER_IOCB) 2592 dsd_lists++; 2593 return dsd_lists; 2594 } 2595 2596 /* 2597 * qla82xx_start_scsi() - Send a SCSI command to the ISP 2598 * @sp: command to send to the ISP 2599 * 2600 * Returns non-zero if a failure occured, else zero. 2601 */ 2602 int 2603 qla82xx_start_scsi(srb_t *sp) 2604 { 2605 int ret, nseg; 2606 unsigned long flags; 2607 struct scsi_cmnd *cmd; 2608 uint32_t *clr_ptr; 2609 uint32_t index; 2610 uint32_t handle; 2611 uint16_t cnt; 2612 uint16_t req_cnt; 2613 uint16_t tot_dsds; 2614 struct device_reg_82xx __iomem *reg; 2615 uint32_t dbval; 2616 uint32_t *fcp_dl; 2617 uint8_t additional_cdb_len; 2618 struct ct6_dsd *ctx; 2619 struct scsi_qla_host *vha = sp->fcport->vha; 2620 struct qla_hw_data *ha = vha->hw; 2621 struct req_que *req = NULL; 2622 struct rsp_que *rsp = NULL; 2623 2624 /* Setup device pointers. */ 2625 ret = 0; 2626 reg = &ha->iobase->isp82; 2627 cmd = sp->cmd; 2628 req = vha->req; 2629 rsp = ha->rsp_q_map[0]; 2630 2631 /* So we know we haven't pci_map'ed anything yet */ 2632 tot_dsds = 0; 2633 2634 dbval = 0x04 | (ha->portnum << 5); 2635 2636 /* Send marker if required */ 2637 if (vha->marker_needed != 0) { 2638 if (qla2x00_marker(vha, req, 2639 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 2640 return QLA_FUNCTION_FAILED; 2641 vha->marker_needed = 0; 2642 } 2643 2644 /* Acquire ring specific lock */ 2645 spin_lock_irqsave(&ha->hardware_lock, flags); 2646 2647 /* Check for room in outstanding command list. */ 2648 handle = req->current_outstanding_cmd; 2649 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { 2650 handle++; 2651 if (handle == MAX_OUTSTANDING_COMMANDS) 2652 handle = 1; 2653 if (!req->outstanding_cmds[handle]) 2654 break; 2655 } 2656 if (index == MAX_OUTSTANDING_COMMANDS) 2657 goto queuing_error; 2658 2659 /* Map the sg table so we have an accurate count of sg entries needed */ 2660 if (scsi_sg_count(cmd)) { 2661 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 2662 scsi_sg_count(cmd), cmd->sc_data_direction); 2663 if (unlikely(!nseg)) 2664 goto queuing_error; 2665 } else 2666 nseg = 0; 2667 2668 tot_dsds = nseg; 2669 2670 if (tot_dsds > ql2xshiftctondsd) { 2671 struct cmd_type_6 *cmd_pkt; 2672 uint16_t more_dsd_lists = 0; 2673 struct dsd_dma *dsd_ptr; 2674 uint16_t i; 2675 2676 more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds); 2677 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) 2678 goto queuing_error; 2679 2680 if (more_dsd_lists <= ha->gbl_dsd_avail) 2681 goto sufficient_dsds; 2682 else 2683 more_dsd_lists -= ha->gbl_dsd_avail; 2684 2685 for (i = 0; i < more_dsd_lists; i++) { 2686 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 2687 if (!dsd_ptr) 2688 goto queuing_error; 2689 2690 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 2691 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 2692 if (!dsd_ptr->dsd_addr) { 2693 kfree(dsd_ptr); 2694 goto queuing_error; 2695 } 2696 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); 2697 ha->gbl_dsd_avail++; 2698 } 2699 2700 sufficient_dsds: 2701 req_cnt = 1; 2702 2703 if (req->cnt < (req_cnt + 2)) { 2704 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 2705 ®->req_q_out[0]); 2706 if (req->ring_index < cnt) 2707 req->cnt = cnt - req->ring_index; 2708 else 2709 req->cnt = req->length - 2710 (req->ring_index - cnt); 2711 } 2712 2713 if (req->cnt < (req_cnt + 2)) 2714 goto queuing_error; 2715 2716 ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); 2717 if (!sp->ctx) { 2718 DEBUG(printk(KERN_INFO 2719 "%s(%ld): failed to allocate" 2720 " ctx.\n", __func__, vha->host_no)); 2721 goto queuing_error; 2722 } 2723 memset(ctx, 0, sizeof(struct ct6_dsd)); 2724 ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, 2725 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 2726 if (!ctx->fcp_cmnd) { 2727 DEBUG2_3(printk("%s(%ld): failed to allocate" 2728 " fcp_cmnd.\n", __func__, vha->host_no)); 2729 goto queuing_error_fcp_cmnd; 2730 } 2731 2732 /* Initialize the DSD list and dma handle */ 2733 INIT_LIST_HEAD(&ctx->dsd_list); 2734 ctx->dsd_use_cnt = 0; 2735 2736 if (cmd->cmd_len > 16) { 2737 additional_cdb_len = cmd->cmd_len - 16; 2738 if ((cmd->cmd_len % 4) != 0) { 2739 /* SCSI command bigger than 16 bytes must be 2740 * multiple of 4 2741 */ 2742 goto queuing_error_fcp_cmnd; 2743 } 2744 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 2745 } else { 2746 additional_cdb_len = 0; 2747 ctx->fcp_cmnd_len = 12 + 16 + 4; 2748 } 2749 2750 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 2751 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 2752 2753 /* Zero out remaining portion of packet. */ 2754 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 2755 clr_ptr = (uint32_t *)cmd_pkt + 2; 2756 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2757 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2758 2759 /* Set NPORT-ID and LUN number*/ 2760 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2761 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2762 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2763 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2764 cmd_pkt->vp_index = sp->fcport->vp_idx; 2765 2766 /* Build IOCB segments */ 2767 if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 2768 goto queuing_error_fcp_cmnd; 2769 2770 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); 2771 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2772 2773 /* build FCP_CMND IU */ 2774 memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); 2775 int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun); 2776 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 2777 2778 if (cmd->sc_data_direction == DMA_TO_DEVICE) 2779 ctx->fcp_cmnd->additional_cdb_len |= 1; 2780 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 2781 ctx->fcp_cmnd->additional_cdb_len |= 2; 2782 2783 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 2784 2785 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + 2786 additional_cdb_len); 2787 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 2788 2789 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 2790 cmd_pkt->fcp_cmnd_dseg_address[0] = 2791 cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); 2792 cmd_pkt->fcp_cmnd_dseg_address[1] = 2793 cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); 2794 2795 sp->flags |= SRB_FCP_CMND_DMA_VALID; 2796 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 2797 /* Set total data segment count. */ 2798 cmd_pkt->entry_count = (uint8_t)req_cnt; 2799 /* Specify response queue number where 2800 * completion should happen 2801 */ 2802 cmd_pkt->entry_status = (uint8_t) rsp->id; 2803 } else { 2804 struct cmd_type_7 *cmd_pkt; 2805 req_cnt = qla24xx_calc_iocbs(tot_dsds); 2806 if (req->cnt < (req_cnt + 2)) { 2807 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 2808 ®->req_q_out[0]); 2809 if (req->ring_index < cnt) 2810 req->cnt = cnt - req->ring_index; 2811 else 2812 req->cnt = req->length - 2813 (req->ring_index - cnt); 2814 } 2815 if (req->cnt < (req_cnt + 2)) 2816 goto queuing_error; 2817 2818 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 2819 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 2820 2821 /* Zero out remaining portion of packet. */ 2822 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 2823 clr_ptr = (uint32_t *)cmd_pkt + 2; 2824 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2825 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2826 2827 /* Set NPORT-ID and LUN number*/ 2828 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2829 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2830 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2831 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2832 cmd_pkt->vp_index = sp->fcport->vp_idx; 2833 2834 int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); 2835 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 2836 sizeof(cmd_pkt->lun)); 2837 2838 /* Load SCSI command packet. */ 2839 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 2840 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 2841 2842 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 2843 2844 /* Build IOCB segments */ 2845 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); 2846 2847 /* Set total data segment count. */ 2848 cmd_pkt->entry_count = (uint8_t)req_cnt; 2849 /* Specify response queue number where 2850 * completion should happen. 2851 */ 2852 cmd_pkt->entry_status = (uint8_t) rsp->id; 2853 2854 } 2855 /* Build command packet. */ 2856 req->current_outstanding_cmd = handle; 2857 req->outstanding_cmds[handle] = sp; 2858 sp->handle = handle; 2859 sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2860 req->cnt -= req_cnt; 2861 wmb(); 2862 2863 /* Adjust ring index. */ 2864 req->ring_index++; 2865 if (req->ring_index == req->length) { 2866 req->ring_index = 0; 2867 req->ring_ptr = req->ring; 2868 } else 2869 req->ring_ptr++; 2870 2871 sp->flags |= SRB_DMA_VALID; 2872 2873 /* Set chip new ring index. */ 2874 /* write, read and verify logic */ 2875 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 2876 if (ql2xdbwr) 2877 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); 2878 else { 2879 WRT_REG_DWORD( 2880 (unsigned long __iomem *)ha->nxdb_wr_ptr, 2881 dbval); 2882 wmb(); 2883 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { 2884 WRT_REG_DWORD( 2885 (unsigned long __iomem *)ha->nxdb_wr_ptr, 2886 dbval); 2887 wmb(); 2888 } 2889 } 2890 2891 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2892 if (vha->flags.process_response_queue && 2893 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2894 qla24xx_process_response_queue(vha, rsp); 2895 2896 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2897 return QLA_SUCCESS; 2898 2899 queuing_error_fcp_cmnd: 2900 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 2901 queuing_error: 2902 if (tot_dsds) 2903 scsi_dma_unmap(cmd); 2904 2905 if (sp->ctx) { 2906 mempool_free(sp->ctx, ha->ctx_mempool); 2907 sp->ctx = NULL; 2908 } 2909 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2910 2911 return QLA_FUNCTION_FAILED; 2912 } 2913 2914 static uint32_t * 2915 qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr, 2916 uint32_t length) 2917 { 2918 uint32_t i; 2919 uint32_t val; 2920 struct qla_hw_data *ha = vha->hw; 2921 2922 /* Dword reads to flash. */ 2923 for (i = 0; i < length/4; i++, faddr += 4) { 2924 if (qla82xx_rom_fast_read(ha, faddr, &val)) { 2925 qla_printk(KERN_WARNING, ha, 2926 "Do ROM fast read failed\n"); 2927 goto done_read; 2928 } 2929 dwptr[i] = __constant_cpu_to_le32(val); 2930 } 2931 done_read: 2932 return dwptr; 2933 } 2934 2935 static int 2936 qla82xx_unprotect_flash(struct qla_hw_data *ha) 2937 { 2938 int ret; 2939 uint32_t val; 2940 2941 ret = ql82xx_rom_lock_d(ha); 2942 if (ret < 0) { 2943 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n"); 2944 return ret; 2945 } 2946 2947 ret = qla82xx_read_status_reg(ha, &val); 2948 if (ret < 0) 2949 goto done_unprotect; 2950 2951 val &= ~(BLOCK_PROTECT_BITS << 2); 2952 ret = qla82xx_write_status_reg(ha, val); 2953 if (ret < 0) { 2954 val |= (BLOCK_PROTECT_BITS << 2); 2955 qla82xx_write_status_reg(ha, val); 2956 } 2957 2958 if (qla82xx_write_disable_flash(ha) != 0) 2959 qla_printk(KERN_WARNING, ha, "Write disable failed\n"); 2960 2961 done_unprotect: 2962 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 2963 return ret; 2964 } 2965 2966 static int 2967 qla82xx_protect_flash(struct qla_hw_data *ha) 2968 { 2969 int ret; 2970 uint32_t val; 2971 2972 ret = ql82xx_rom_lock_d(ha); 2973 if (ret < 0) { 2974 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n"); 2975 return ret; 2976 } 2977 2978 ret = qla82xx_read_status_reg(ha, &val); 2979 if (ret < 0) 2980 goto done_protect; 2981 2982 val |= (BLOCK_PROTECT_BITS << 2); 2983 /* LOCK all sectors */ 2984 ret = qla82xx_write_status_reg(ha, val); 2985 if (ret < 0) 2986 qla_printk(KERN_WARNING, ha, "Write status register failed\n"); 2987 2988 if (qla82xx_write_disable_flash(ha) != 0) 2989 qla_printk(KERN_WARNING, ha, "Write disable failed\n"); 2990 done_protect: 2991 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 2992 return ret; 2993 } 2994 2995 static int 2996 qla82xx_erase_sector(struct qla_hw_data *ha, int addr) 2997 { 2998 int ret = 0; 2999 3000 ret = ql82xx_rom_lock_d(ha); 3001 if (ret < 0) { 3002 qla_printk(KERN_WARNING, ha, "ROM Lock failed\n"); 3003 return ret; 3004 } 3005 3006 qla82xx_flash_set_write_enable(ha); 3007 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr); 3008 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3); 3009 qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE); 3010 3011 if (qla82xx_wait_rom_done(ha)) { 3012 qla_printk(KERN_WARNING, ha, 3013 "Error waiting for rom done\n"); 3014 ret = -1; 3015 goto done; 3016 } 3017 ret = qla82xx_flash_wait_write_finish(ha); 3018 done: 3019 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 3020 return ret; 3021 } 3022 3023 /* 3024 * Address and length are byte address 3025 */ 3026 uint8_t * 3027 qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, 3028 uint32_t offset, uint32_t length) 3029 { 3030 scsi_block_requests(vha->host); 3031 qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length); 3032 scsi_unblock_requests(vha->host); 3033 return buf; 3034 } 3035 3036 static int 3037 qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr, 3038 uint32_t faddr, uint32_t dwords) 3039 { 3040 int ret; 3041 uint32_t liter; 3042 uint32_t sec_mask, rest_addr; 3043 dma_addr_t optrom_dma; 3044 void *optrom = NULL; 3045 int page_mode = 0; 3046 struct qla_hw_data *ha = vha->hw; 3047 3048 ret = -1; 3049 3050 /* Prepare burst-capable write on supported ISPs. */ 3051 if (page_mode && !(faddr & 0xfff) && 3052 dwords > OPTROM_BURST_DWORDS) { 3053 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, 3054 &optrom_dma, GFP_KERNEL); 3055 if (!optrom) { 3056 qla_printk(KERN_DEBUG, ha, 3057 "Unable to allocate memory for optrom " 3058 "burst write (%x KB).\n", 3059 OPTROM_BURST_SIZE / 1024); 3060 } 3061 } 3062 3063 rest_addr = ha->fdt_block_size - 1; 3064 sec_mask = ~rest_addr; 3065 3066 ret = qla82xx_unprotect_flash(ha); 3067 if (ret) { 3068 qla_printk(KERN_WARNING, ha, 3069 "Unable to unprotect flash for update.\n"); 3070 goto write_done; 3071 } 3072 3073 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) { 3074 /* Are we at the beginning of a sector? */ 3075 if ((faddr & rest_addr) == 0) { 3076 3077 ret = qla82xx_erase_sector(ha, faddr); 3078 if (ret) { 3079 DEBUG9(qla_printk(KERN_ERR, ha, 3080 "Unable to erase sector: " 3081 "address=%x.\n", faddr)); 3082 break; 3083 } 3084 } 3085 3086 /* Go with burst-write. */ 3087 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) { 3088 /* Copy data to DMA'ble buffer. */ 3089 memcpy(optrom, dwptr, OPTROM_BURST_SIZE); 3090 3091 ret = qla2x00_load_ram(vha, optrom_dma, 3092 (ha->flash_data_off | faddr), 3093 OPTROM_BURST_DWORDS); 3094 if (ret != QLA_SUCCESS) { 3095 qla_printk(KERN_WARNING, ha, 3096 "Unable to burst-write optrom segment " 3097 "(%x/%x/%llx).\n", ret, 3098 (ha->flash_data_off | faddr), 3099 (unsigned long long)optrom_dma); 3100 qla_printk(KERN_WARNING, ha, 3101 "Reverting to slow-write.\n"); 3102 3103 dma_free_coherent(&ha->pdev->dev, 3104 OPTROM_BURST_SIZE, optrom, optrom_dma); 3105 optrom = NULL; 3106 } else { 3107 liter += OPTROM_BURST_DWORDS - 1; 3108 faddr += OPTROM_BURST_DWORDS - 1; 3109 dwptr += OPTROM_BURST_DWORDS - 1; 3110 continue; 3111 } 3112 } 3113 3114 ret = qla82xx_write_flash_dword(ha, faddr, 3115 cpu_to_le32(*dwptr)); 3116 if (ret) { 3117 DEBUG9(printk(KERN_DEBUG "%s(%ld) Unable to program" 3118 "flash address=%x data=%x.\n", __func__, 3119 ha->host_no, faddr, *dwptr)); 3120 break; 3121 } 3122 } 3123 3124 ret = qla82xx_protect_flash(ha); 3125 if (ret) 3126 qla_printk(KERN_WARNING, ha, 3127 "Unable to protect flash after update.\n"); 3128 write_done: 3129 if (optrom) 3130 dma_free_coherent(&ha->pdev->dev, 3131 OPTROM_BURST_SIZE, optrom, optrom_dma); 3132 return ret; 3133 } 3134 3135 int 3136 qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, 3137 uint32_t offset, uint32_t length) 3138 { 3139 int rval; 3140 3141 /* Suspend HBA. */ 3142 scsi_block_requests(vha->host); 3143 rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset, 3144 length >> 2); 3145 scsi_unblock_requests(vha->host); 3146 3147 /* Convert return ISP82xx to generic */ 3148 if (rval) 3149 rval = QLA_FUNCTION_FAILED; 3150 else 3151 rval = QLA_SUCCESS; 3152 return rval; 3153 } 3154 3155 void 3156 qla82xx_start_iocbs(srb_t *sp) 3157 { 3158 struct qla_hw_data *ha = sp->fcport->vha->hw; 3159 struct req_que *req = ha->req_q_map[0]; 3160 struct device_reg_82xx __iomem *reg; 3161 uint32_t dbval; 3162 3163 /* Adjust ring index. */ 3164 req->ring_index++; 3165 if (req->ring_index == req->length) { 3166 req->ring_index = 0; 3167 req->ring_ptr = req->ring; 3168 } else 3169 req->ring_ptr++; 3170 3171 reg = &ha->iobase->isp82; 3172 dbval = 0x04 | (ha->portnum << 5); 3173 3174 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3175 if (ql2xdbwr) 3176 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); 3177 else { 3178 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval); 3179 wmb(); 3180 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { 3181 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, 3182 dbval); 3183 wmb(); 3184 } 3185 } 3186 } 3187 3188 void qla82xx_rom_lock_recovery(struct qla_hw_data *ha) 3189 { 3190 if (qla82xx_rom_lock(ha)) 3191 /* Someone else is holding the lock. */ 3192 qla_printk(KERN_INFO, ha, "Resetting rom_lock\n"); 3193 3194 /* 3195 * Either we got the lock, or someone 3196 * else died while holding it. 3197 * In either case, unlock. 3198 */ 3199 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); 3200 } 3201 3202 /* 3203 * qla82xx_device_bootstrap 3204 * Initialize device, set DEV_READY, start fw 3205 * 3206 * Note: 3207 * IDC lock must be held upon entry 3208 * 3209 * Return: 3210 * Success : 0 3211 * Failed : 1 3212 */ 3213 static int 3214 qla82xx_device_bootstrap(scsi_qla_host_t *vha) 3215 { 3216 int rval = QLA_SUCCESS; 3217 int i, timeout; 3218 uint32_t old_count, count; 3219 struct qla_hw_data *ha = vha->hw; 3220 int need_reset = 0, peg_stuck = 1; 3221 3222 need_reset = qla82xx_need_reset(ha); 3223 3224 old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 3225 3226 for (i = 0; i < 10; i++) { 3227 timeout = msleep_interruptible(200); 3228 if (timeout) { 3229 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3230 QLA82XX_DEV_FAILED); 3231 return QLA_FUNCTION_FAILED; 3232 } 3233 3234 count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 3235 if (count != old_count) 3236 peg_stuck = 0; 3237 } 3238 3239 if (need_reset) { 3240 /* We are trying to perform a recovery here. */ 3241 if (peg_stuck) 3242 qla82xx_rom_lock_recovery(ha); 3243 goto dev_initialize; 3244 } else { 3245 /* Start of day for this ha context. */ 3246 if (peg_stuck) { 3247 /* Either we are the first or recovery in progress. */ 3248 qla82xx_rom_lock_recovery(ha); 3249 goto dev_initialize; 3250 } else 3251 /* Firmware already running. */ 3252 goto dev_ready; 3253 } 3254 3255 return rval; 3256 3257 dev_initialize: 3258 /* set to DEV_INITIALIZING */ 3259 qla_printk(KERN_INFO, ha, "HW State: INITIALIZING\n"); 3260 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING); 3261 3262 /* Driver that sets device state to initializating sets IDC version */ 3263 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION); 3264 3265 qla82xx_idc_unlock(ha); 3266 rval = qla82xx_start_firmware(vha); 3267 qla82xx_idc_lock(ha); 3268 3269 if (rval != QLA_SUCCESS) { 3270 qla_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3271 qla82xx_clear_drv_active(ha); 3272 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED); 3273 return rval; 3274 } 3275 3276 dev_ready: 3277 qla_printk(KERN_INFO, ha, "HW State: READY\n"); 3278 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY); 3279 3280 return QLA_SUCCESS; 3281 } 3282 3283 /* 3284 * qla82xx_need_qsnt_handler 3285 * Code to start quiescence sequence 3286 * 3287 * Note: 3288 * IDC lock must be held upon entry 3289 * 3290 * Return: void 3291 */ 3292 3293 static void 3294 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha) 3295 { 3296 struct qla_hw_data *ha = vha->hw; 3297 uint32_t dev_state, drv_state, drv_active; 3298 unsigned long reset_timeout; 3299 3300 if (vha->flags.online) { 3301 /*Block any further I/O and wait for pending cmnds to complete*/ 3302 qla82xx_quiescent_state_cleanup(vha); 3303 } 3304 3305 /* Set the quiescence ready bit */ 3306 qla82xx_set_qsnt_ready(ha); 3307 3308 /*wait for 30 secs for other functions to ack */ 3309 reset_timeout = jiffies + (30 * HZ); 3310 3311 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 3312 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 3313 /* Its 2 that is written when qsnt is acked, moving one bit */ 3314 drv_active = drv_active << 0x01; 3315 3316 while (drv_state != drv_active) { 3317 3318 if (time_after_eq(jiffies, reset_timeout)) { 3319 /* quiescence timeout, other functions didn't ack 3320 * changing the state to DEV_READY 3321 */ 3322 qla_printk(KERN_INFO, ha, 3323 "%s: QUIESCENT TIMEOUT\n", QLA2XXX_DRIVER_NAME); 3324 qla_printk(KERN_INFO, ha, 3325 "DRV_ACTIVE:%d DRV_STATE:%d\n", drv_active, 3326 drv_state); 3327 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3328 QLA82XX_DEV_READY); 3329 qla_printk(KERN_INFO, ha, 3330 "HW State: DEV_READY\n"); 3331 qla82xx_idc_unlock(ha); 3332 qla2x00_perform_loop_resync(vha); 3333 qla82xx_idc_lock(ha); 3334 3335 qla82xx_clear_qsnt_ready(vha); 3336 return; 3337 } 3338 3339 qla82xx_idc_unlock(ha); 3340 msleep(1000); 3341 qla82xx_idc_lock(ha); 3342 3343 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 3344 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 3345 drv_active = drv_active << 0x01; 3346 } 3347 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3348 /* everyone acked so set the state to DEV_QUIESCENCE */ 3349 if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) { 3350 qla_printk(KERN_INFO, ha, "HW State: DEV_QUIESCENT\n"); 3351 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT); 3352 } 3353 } 3354 3355 /* 3356 * qla82xx_wait_for_state_change 3357 * Wait for device state to change from given current state 3358 * 3359 * Note: 3360 * IDC lock must not be held upon entry 3361 * 3362 * Return: 3363 * Changed device state. 3364 */ 3365 uint32_t 3366 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state) 3367 { 3368 struct qla_hw_data *ha = vha->hw; 3369 uint32_t dev_state; 3370 3371 do { 3372 msleep(1000); 3373 qla82xx_idc_lock(ha); 3374 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3375 qla82xx_idc_unlock(ha); 3376 } while (dev_state == curr_state); 3377 3378 return dev_state; 3379 } 3380 3381 static void 3382 qla82xx_dev_failed_handler(scsi_qla_host_t *vha) 3383 { 3384 struct qla_hw_data *ha = vha->hw; 3385 3386 /* Disable the board */ 3387 qla_printk(KERN_INFO, ha, "Disabling the board\n"); 3388 3389 qla82xx_idc_lock(ha); 3390 qla82xx_clear_drv_active(ha); 3391 qla82xx_idc_unlock(ha); 3392 3393 /* Set DEV_FAILED flag to disable timer */ 3394 vha->device_flags |= DFLG_DEV_FAILED; 3395 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16); 3396 qla2x00_mark_all_devices_lost(vha, 0); 3397 vha->flags.online = 0; 3398 vha->flags.init_done = 0; 3399 } 3400 3401 /* 3402 * qla82xx_need_reset_handler 3403 * Code to start reset sequence 3404 * 3405 * Note: 3406 * IDC lock must be held upon entry 3407 * 3408 * Return: 3409 * Success : 0 3410 * Failed : 1 3411 */ 3412 static void 3413 qla82xx_need_reset_handler(scsi_qla_host_t *vha) 3414 { 3415 uint32_t dev_state, drv_state, drv_active; 3416 unsigned long reset_timeout; 3417 struct qla_hw_data *ha = vha->hw; 3418 struct req_que *req = ha->req_q_map[0]; 3419 3420 if (vha->flags.online) { 3421 qla82xx_idc_unlock(ha); 3422 qla2x00_abort_isp_cleanup(vha); 3423 ha->isp_ops->get_flash_version(vha, req->ring); 3424 ha->isp_ops->nvram_config(vha); 3425 qla82xx_idc_lock(ha); 3426 } 3427 3428 qla82xx_set_rst_ready(ha); 3429 3430 /* wait for 10 seconds for reset ack from all functions */ 3431 reset_timeout = jiffies + (ha->nx_reset_timeout * HZ); 3432 3433 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 3434 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 3435 3436 while (drv_state != drv_active) { 3437 if (time_after_eq(jiffies, reset_timeout)) { 3438 qla_printk(KERN_INFO, ha, 3439 "%s: RESET TIMEOUT!\n", QLA2XXX_DRIVER_NAME); 3440 break; 3441 } 3442 qla82xx_idc_unlock(ha); 3443 msleep(1000); 3444 qla82xx_idc_lock(ha); 3445 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE); 3446 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); 3447 } 3448 3449 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3450 qla_printk(KERN_INFO, ha, "3:Device state is 0x%x = %s\n", dev_state, 3451 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown"); 3452 3453 /* Force to DEV_COLD unless someone else is starting a reset */ 3454 if (dev_state != QLA82XX_DEV_INITIALIZING) { 3455 qla_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n"); 3456 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD); 3457 } 3458 } 3459 3460 static void 3461 qla82xx_check_fw_alive(scsi_qla_host_t *vha) 3462 { 3463 uint32_t fw_heartbeat_counter, halt_status; 3464 struct qla_hw_data *ha = vha->hw; 3465 3466 fw_heartbeat_counter = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 3467 /* all 0xff, assume AER/EEH in progress, ignore */ 3468 if (fw_heartbeat_counter == 0xffffffff) 3469 return; 3470 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) { 3471 vha->seconds_since_last_heartbeat++; 3472 /* FW not alive after 2 seconds */ 3473 if (vha->seconds_since_last_heartbeat == 2) { 3474 vha->seconds_since_last_heartbeat = 0; 3475 halt_status = qla82xx_rd_32(ha, 3476 QLA82XX_PEG_HALT_STATUS1); 3477 if (halt_status & HALT_STATUS_UNRECOVERABLE) { 3478 set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags); 3479 } else { 3480 qla_printk(KERN_INFO, ha, 3481 "scsi(%ld): %s - detect abort needed\n", 3482 vha->host_no, __func__); 3483 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 3484 } 3485 qla2xxx_wake_dpc(vha); 3486 ha->flags.fw_hung = 1; 3487 if (ha->flags.mbox_busy) { 3488 ha->flags.mbox_int = 1; 3489 DEBUG2(qla_printk(KERN_ERR, ha, 3490 "Due to fw hung, doing premature " 3491 "completion of mbx command\n")); 3492 if (test_bit(MBX_INTR_WAIT, 3493 &ha->mbx_cmd_flags)) 3494 complete(&ha->mbx_intr_comp); 3495 } 3496 } 3497 } else 3498 vha->seconds_since_last_heartbeat = 0; 3499 vha->fw_heartbeat_counter = fw_heartbeat_counter; 3500 } 3501 3502 /* 3503 * qla82xx_device_state_handler 3504 * Main state handler 3505 * 3506 * Note: 3507 * IDC lock must be held upon entry 3508 * 3509 * Return: 3510 * Success : 0 3511 * Failed : 1 3512 */ 3513 int 3514 qla82xx_device_state_handler(scsi_qla_host_t *vha) 3515 { 3516 uint32_t dev_state; 3517 int rval = QLA_SUCCESS; 3518 unsigned long dev_init_timeout; 3519 struct qla_hw_data *ha = vha->hw; 3520 3521 qla82xx_idc_lock(ha); 3522 if (!vha->flags.init_done) 3523 qla82xx_set_drv_active(vha); 3524 3525 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3526 qla_printk(KERN_INFO, ha, "1:Device state is 0x%x = %s\n", dev_state, 3527 dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown"); 3528 3529 /* wait for 30 seconds for device to go ready */ 3530 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ); 3531 3532 while (1) { 3533 3534 if (time_after_eq(jiffies, dev_init_timeout)) { 3535 DEBUG(qla_printk(KERN_INFO, ha, 3536 "%s: device init failed!\n", 3537 QLA2XXX_DRIVER_NAME)); 3538 rval = QLA_FUNCTION_FAILED; 3539 break; 3540 } 3541 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3542 qla_printk(KERN_INFO, ha, 3543 "2:Device state is 0x%x = %s\n", dev_state, 3544 dev_state < MAX_STATES ? 3545 qdev_state[dev_state] : "Unknown"); 3546 3547 switch (dev_state) { 3548 case QLA82XX_DEV_READY: 3549 goto exit; 3550 case QLA82XX_DEV_COLD: 3551 rval = qla82xx_device_bootstrap(vha); 3552 goto exit; 3553 case QLA82XX_DEV_INITIALIZING: 3554 qla82xx_idc_unlock(ha); 3555 msleep(1000); 3556 qla82xx_idc_lock(ha); 3557 break; 3558 case QLA82XX_DEV_NEED_RESET: 3559 qla82xx_need_reset_handler(vha); 3560 break; 3561 case QLA82XX_DEV_NEED_QUIESCENT: 3562 qla82xx_need_qsnt_handler(vha); 3563 /* Reset timeout value after quiescence handler */ 3564 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\ 3565 * HZ); 3566 break; 3567 case QLA82XX_DEV_QUIESCENT: 3568 /* Owner will exit and other will wait for the state 3569 * to get changed 3570 */ 3571 if (ha->flags.quiesce_owner) 3572 goto exit; 3573 3574 qla82xx_idc_unlock(ha); 3575 msleep(1000); 3576 qla82xx_idc_lock(ha); 3577 3578 /* Reset timeout value after quiescence handler */ 3579 dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\ 3580 * HZ); 3581 break; 3582 case QLA82XX_DEV_FAILED: 3583 qla82xx_dev_failed_handler(vha); 3584 rval = QLA_FUNCTION_FAILED; 3585 goto exit; 3586 default: 3587 qla82xx_idc_unlock(ha); 3588 msleep(1000); 3589 qla82xx_idc_lock(ha); 3590 } 3591 } 3592 exit: 3593 qla82xx_idc_unlock(ha); 3594 return rval; 3595 } 3596 3597 void qla82xx_watchdog(scsi_qla_host_t *vha) 3598 { 3599 uint32_t dev_state; 3600 struct qla_hw_data *ha = vha->hw; 3601 3602 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3603 3604 /* don't poll if reset is going on */ 3605 if (!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) || 3606 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || 3607 test_bit(ISP_ABORT_RETRY, &vha->dpc_flags))) { 3608 if (dev_state == QLA82XX_DEV_NEED_RESET) { 3609 qla_printk(KERN_WARNING, ha, 3610 "%s(): Adapter reset needed!\n", __func__); 3611 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 3612 qla2xxx_wake_dpc(vha); 3613 ha->flags.fw_hung = 1; 3614 if (ha->flags.mbox_busy) { 3615 ha->flags.mbox_int = 1; 3616 DEBUG2(qla_printk(KERN_ERR, ha, 3617 "Need reset, doing premature " 3618 "completion of mbx command\n")); 3619 if (test_bit(MBX_INTR_WAIT, 3620 &ha->mbx_cmd_flags)) 3621 complete(&ha->mbx_intr_comp); 3622 } 3623 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 3624 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) { 3625 DEBUG(qla_printk(KERN_INFO, ha, 3626 "scsi(%ld) %s - detected quiescence needed\n", 3627 vha->host_no, __func__)); 3628 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 3629 qla2xxx_wake_dpc(vha); 3630 } else { 3631 qla82xx_check_fw_alive(vha); 3632 } 3633 } 3634 } 3635 3636 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr) 3637 { 3638 int rval; 3639 rval = qla82xx_device_state_handler(vha); 3640 return rval; 3641 } 3642 3643 /* 3644 * qla82xx_abort_isp 3645 * Resets ISP and aborts all outstanding commands. 3646 * 3647 * Input: 3648 * ha = adapter block pointer. 3649 * 3650 * Returns: 3651 * 0 = success 3652 */ 3653 int 3654 qla82xx_abort_isp(scsi_qla_host_t *vha) 3655 { 3656 int rval; 3657 struct qla_hw_data *ha = vha->hw; 3658 uint32_t dev_state; 3659 3660 if (vha->device_flags & DFLG_DEV_FAILED) { 3661 qla_printk(KERN_WARNING, ha, 3662 "%s(%ld): Device in failed state, " 3663 "Exiting.\n", __func__, vha->host_no); 3664 return QLA_SUCCESS; 3665 } 3666 3667 qla82xx_idc_lock(ha); 3668 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3669 if (dev_state == QLA82XX_DEV_READY) { 3670 qla_printk(KERN_INFO, ha, "HW State: NEED RESET\n"); 3671 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3672 QLA82XX_DEV_NEED_RESET); 3673 } else 3674 qla_printk(KERN_INFO, ha, "HW State: %s\n", 3675 dev_state < MAX_STATES ? 3676 qdev_state[dev_state] : "Unknown"); 3677 qla82xx_idc_unlock(ha); 3678 3679 rval = qla82xx_device_state_handler(vha); 3680 3681 qla82xx_idc_lock(ha); 3682 qla82xx_clear_rst_ready(ha); 3683 qla82xx_idc_unlock(ha); 3684 3685 if (rval == QLA_SUCCESS) { 3686 ha->flags.fw_hung = 0; 3687 qla82xx_restart_isp(vha); 3688 } 3689 3690 if (rval) { 3691 vha->flags.online = 1; 3692 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) { 3693 if (ha->isp_abort_cnt == 0) { 3694 qla_printk(KERN_WARNING, ha, 3695 "ISP error recovery failed - " 3696 "board disabled\n"); 3697 /* 3698 * The next call disables the board 3699 * completely. 3700 */ 3701 ha->isp_ops->reset_adapter(vha); 3702 vha->flags.online = 0; 3703 clear_bit(ISP_ABORT_RETRY, 3704 &vha->dpc_flags); 3705 rval = QLA_SUCCESS; 3706 } else { /* schedule another ISP abort */ 3707 ha->isp_abort_cnt--; 3708 DEBUG(qla_printk(KERN_INFO, ha, 3709 "qla%ld: ISP abort - retry remaining %d\n", 3710 vha->host_no, ha->isp_abort_cnt)); 3711 rval = QLA_FUNCTION_FAILED; 3712 } 3713 } else { 3714 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT; 3715 DEBUG(qla_printk(KERN_INFO, ha, 3716 "(%ld): ISP error recovery - retrying (%d) " 3717 "more times\n", vha->host_no, ha->isp_abort_cnt)); 3718 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags); 3719 rval = QLA_FUNCTION_FAILED; 3720 } 3721 } 3722 return rval; 3723 } 3724 3725 /* 3726 * qla82xx_fcoe_ctx_reset 3727 * Perform a quick reset and aborts all outstanding commands. 3728 * This will only perform an FCoE context reset and avoids a full blown 3729 * chip reset. 3730 * 3731 * Input: 3732 * ha = adapter block pointer. 3733 * is_reset_path = flag for identifying the reset path. 3734 * 3735 * Returns: 3736 * 0 = success 3737 */ 3738 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha) 3739 { 3740 int rval = QLA_FUNCTION_FAILED; 3741 3742 if (vha->flags.online) { 3743 /* Abort all outstanding commands, so as to be requeued later */ 3744 qla2x00_abort_isp_cleanup(vha); 3745 } 3746 3747 /* Stop currently executing firmware. 3748 * This will destroy existing FCoE context at the F/W end. 3749 */ 3750 qla2x00_try_to_stop_firmware(vha); 3751 3752 /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */ 3753 rval = qla82xx_restart_isp(vha); 3754 3755 return rval; 3756 } 3757 3758 /* 3759 * qla2x00_wait_for_fcoe_ctx_reset 3760 * Wait till the FCoE context is reset. 3761 * 3762 * Note: 3763 * Does context switching here. 3764 * Release SPIN_LOCK (if any) before calling this routine. 3765 * 3766 * Return: 3767 * Success (fcoe_ctx reset is done) : 0 3768 * Failed (fcoe_ctx reset not completed within max loop timout ) : 1 3769 */ 3770 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha) 3771 { 3772 int status = QLA_FUNCTION_FAILED; 3773 unsigned long wait_reset; 3774 3775 wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ); 3776 while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) || 3777 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 3778 && time_before(jiffies, wait_reset)) { 3779 3780 set_current_state(TASK_UNINTERRUPTIBLE); 3781 schedule_timeout(HZ); 3782 3783 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) && 3784 !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 3785 status = QLA_SUCCESS; 3786 break; 3787 } 3788 } 3789 DEBUG2(printk(KERN_INFO 3790 "%s status=%d\n", __func__, status)); 3791 3792 return status; 3793 } 3794