Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* qlogicpti.c: Performance Technologies QlogicISP sbus card driver. |
| 2 | * |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 3 | * Copyright (C) 1996, 2006 David S. Miller (davem@davemloft.net) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
| 5 | * A lot of this driver was directly stolen from Erik H. Moe's PCI |
| 6 | * Qlogic ISP driver. Mucho kudos to him for this code. |
| 7 | * |
| 8 | * An even bigger kudos to John Grana at Performance Technologies |
| 9 | * for providing me with the hardware to write this driver, you rule |
| 10 | * John you really do. |
| 11 | * |
| 12 | * May, 2, 1997: Added support for QLGC,isp --jj |
| 13 | */ |
| 14 | |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/types.h> |
| 18 | #include <linux/string.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/blkdev.h> |
| 21 | #include <linux/proc_fs.h> |
| 22 | #include <linux/stat.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/spinlock.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/module.h> |
Marcelo Feitoza Parisi | 60c904a | 2006-03-28 01:56:47 -0800 | [diff] [blame] | 27 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | #include <asm/byteorder.h> |
| 30 | |
| 31 | #include "qlogicpti.h" |
| 32 | |
| 33 | #include <asm/sbus.h> |
| 34 | #include <asm/dma.h> |
| 35 | #include <asm/system.h> |
| 36 | #include <asm/ptrace.h> |
| 37 | #include <asm/pgtable.h> |
| 38 | #include <asm/oplib.h> |
| 39 | #include <asm/io.h> |
| 40 | #include <asm/irq.h> |
| 41 | |
| 42 | #include <scsi/scsi.h> |
| 43 | #include <scsi/scsi_cmnd.h> |
| 44 | #include <scsi/scsi_device.h> |
| 45 | #include <scsi/scsi_eh.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #include <scsi/scsi_tcq.h> |
| 47 | #include <scsi/scsi_host.h> |
| 48 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #define MAX_TARGETS 16 |
| 50 | #define MAX_LUNS 8 /* 32 for 1.31 F/W */ |
| 51 | |
| 52 | #define DEFAULT_LOOP_COUNT 10000 |
| 53 | |
| 54 | #include "qlogicpti_asm.c" |
| 55 | |
| 56 | static struct qlogicpti *qptichain = NULL; |
| 57 | static DEFINE_SPINLOCK(qptichain_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
| 59 | #define PACKB(a, b) (((a)<<4)|(b)) |
| 60 | |
| 61 | static const u_char mbox_param[] = { |
| 62 | PACKB(1, 1), /* MBOX_NO_OP */ |
| 63 | PACKB(5, 5), /* MBOX_LOAD_RAM */ |
| 64 | PACKB(2, 0), /* MBOX_EXEC_FIRMWARE */ |
| 65 | PACKB(5, 5), /* MBOX_DUMP_RAM */ |
| 66 | PACKB(3, 3), /* MBOX_WRITE_RAM_WORD */ |
| 67 | PACKB(2, 3), /* MBOX_READ_RAM_WORD */ |
| 68 | PACKB(6, 6), /* MBOX_MAILBOX_REG_TEST */ |
| 69 | PACKB(2, 3), /* MBOX_VERIFY_CHECKSUM */ |
| 70 | PACKB(1, 3), /* MBOX_ABOUT_FIRMWARE */ |
| 71 | PACKB(0, 0), /* 0x0009 */ |
| 72 | PACKB(0, 0), /* 0x000a */ |
| 73 | PACKB(0, 0), /* 0x000b */ |
| 74 | PACKB(0, 0), /* 0x000c */ |
| 75 | PACKB(0, 0), /* 0x000d */ |
| 76 | PACKB(1, 2), /* MBOX_CHECK_FIRMWARE */ |
| 77 | PACKB(0, 0), /* 0x000f */ |
| 78 | PACKB(5, 5), /* MBOX_INIT_REQ_QUEUE */ |
| 79 | PACKB(6, 6), /* MBOX_INIT_RES_QUEUE */ |
| 80 | PACKB(4, 4), /* MBOX_EXECUTE_IOCB */ |
| 81 | PACKB(2, 2), /* MBOX_WAKE_UP */ |
| 82 | PACKB(1, 6), /* MBOX_STOP_FIRMWARE */ |
| 83 | PACKB(4, 4), /* MBOX_ABORT */ |
| 84 | PACKB(2, 2), /* MBOX_ABORT_DEVICE */ |
| 85 | PACKB(3, 3), /* MBOX_ABORT_TARGET */ |
| 86 | PACKB(2, 2), /* MBOX_BUS_RESET */ |
| 87 | PACKB(2, 3), /* MBOX_STOP_QUEUE */ |
| 88 | PACKB(2, 3), /* MBOX_START_QUEUE */ |
| 89 | PACKB(2, 3), /* MBOX_SINGLE_STEP_QUEUE */ |
| 90 | PACKB(2, 3), /* MBOX_ABORT_QUEUE */ |
| 91 | PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_STATUS */ |
| 92 | PACKB(0, 0), /* 0x001e */ |
| 93 | PACKB(1, 3), /* MBOX_GET_FIRMWARE_STATUS */ |
| 94 | PACKB(1, 2), /* MBOX_GET_INIT_SCSI_ID */ |
| 95 | PACKB(1, 2), /* MBOX_GET_SELECT_TIMEOUT */ |
| 96 | PACKB(1, 3), /* MBOX_GET_RETRY_COUNT */ |
| 97 | PACKB(1, 2), /* MBOX_GET_TAG_AGE_LIMIT */ |
| 98 | PACKB(1, 2), /* MBOX_GET_CLOCK_RATE */ |
| 99 | PACKB(1, 2), /* MBOX_GET_ACT_NEG_STATE */ |
| 100 | PACKB(1, 2), /* MBOX_GET_ASYNC_DATA_SETUP_TIME */ |
| 101 | PACKB(1, 3), /* MBOX_GET_SBUS_PARAMS */ |
| 102 | PACKB(2, 4), /* MBOX_GET_TARGET_PARAMS */ |
| 103 | PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_PARAMS */ |
| 104 | PACKB(0, 0), /* 0x002a */ |
| 105 | PACKB(0, 0), /* 0x002b */ |
| 106 | PACKB(0, 0), /* 0x002c */ |
| 107 | PACKB(0, 0), /* 0x002d */ |
| 108 | PACKB(0, 0), /* 0x002e */ |
| 109 | PACKB(0, 0), /* 0x002f */ |
| 110 | PACKB(2, 2), /* MBOX_SET_INIT_SCSI_ID */ |
| 111 | PACKB(2, 2), /* MBOX_SET_SELECT_TIMEOUT */ |
| 112 | PACKB(3, 3), /* MBOX_SET_RETRY_COUNT */ |
| 113 | PACKB(2, 2), /* MBOX_SET_TAG_AGE_LIMIT */ |
| 114 | PACKB(2, 2), /* MBOX_SET_CLOCK_RATE */ |
| 115 | PACKB(2, 2), /* MBOX_SET_ACTIVE_NEG_STATE */ |
| 116 | PACKB(2, 2), /* MBOX_SET_ASYNC_DATA_SETUP_TIME */ |
| 117 | PACKB(3, 3), /* MBOX_SET_SBUS_CONTROL_PARAMS */ |
| 118 | PACKB(4, 4), /* MBOX_SET_TARGET_PARAMS */ |
| 119 | PACKB(4, 4), /* MBOX_SET_DEV_QUEUE_PARAMS */ |
| 120 | PACKB(0, 0), /* 0x003a */ |
| 121 | PACKB(0, 0), /* 0x003b */ |
| 122 | PACKB(0, 0), /* 0x003c */ |
| 123 | PACKB(0, 0), /* 0x003d */ |
| 124 | PACKB(0, 0), /* 0x003e */ |
| 125 | PACKB(0, 0), /* 0x003f */ |
| 126 | PACKB(0, 0), /* 0x0040 */ |
| 127 | PACKB(0, 0), /* 0x0041 */ |
| 128 | PACKB(0, 0) /* 0x0042 */ |
| 129 | }; |
| 130 | |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 131 | #define MAX_MBOX_COMMAND ARRAY_SIZE(mbox_param) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
| 133 | /* queue length's _must_ be power of two: */ |
| 134 | #define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql)) |
| 135 | #define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \ |
| 136 | QLOGICPTI_REQ_QUEUE_LEN) |
| 137 | #define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN) |
| 138 | |
| 139 | static inline void qlogicpti_enable_irqs(struct qlogicpti *qpti) |
| 140 | { |
| 141 | sbus_writew(SBUS_CTRL_ERIRQ | SBUS_CTRL_GENAB, |
| 142 | qpti->qregs + SBUS_CTRL); |
| 143 | } |
| 144 | |
| 145 | static inline void qlogicpti_disable_irqs(struct qlogicpti *qpti) |
| 146 | { |
| 147 | sbus_writew(0, qpti->qregs + SBUS_CTRL); |
| 148 | } |
| 149 | |
| 150 | static inline void set_sbus_cfg1(struct qlogicpti *qpti) |
| 151 | { |
| 152 | u16 val; |
| 153 | u8 bursts = qpti->bursts; |
| 154 | |
| 155 | #if 0 /* It appears that at least PTI cards do not support |
| 156 | * 64-byte bursts and that setting the B64 bit actually |
| 157 | * is a nop and the chip ends up using the smallest burst |
| 158 | * size. -DaveM |
| 159 | */ |
| 160 | if (sbus_can_burst64(qpti->sdev) && (bursts & DMA_BURST64)) { |
| 161 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B64); |
| 162 | } else |
| 163 | #endif |
| 164 | if (bursts & DMA_BURST32) { |
| 165 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B32); |
| 166 | } else if (bursts & DMA_BURST16) { |
| 167 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B16); |
| 168 | } else if (bursts & DMA_BURST8) { |
| 169 | val = (SBUS_CFG1_BENAB | SBUS_CFG1_B8); |
| 170 | } else { |
| 171 | val = 0; /* No sbus bursts for you... */ |
| 172 | } |
| 173 | sbus_writew(val, qpti->qregs + SBUS_CFG1); |
| 174 | } |
| 175 | |
| 176 | static int qlogicpti_mbox_command(struct qlogicpti *qpti, u_short param[], int force) |
| 177 | { |
| 178 | int loop_count; |
| 179 | u16 tmp; |
| 180 | |
| 181 | if (mbox_param[param[0]] == 0) |
| 182 | return 1; |
| 183 | |
| 184 | /* Set SBUS semaphore. */ |
| 185 | tmp = sbus_readw(qpti->qregs + SBUS_SEMAPHORE); |
| 186 | tmp |= SBUS_SEMAPHORE_LCK; |
| 187 | sbus_writew(tmp, qpti->qregs + SBUS_SEMAPHORE); |
| 188 | |
| 189 | /* Wait for host IRQ bit to clear. */ |
| 190 | loop_count = DEFAULT_LOOP_COUNT; |
| 191 | while (--loop_count && (sbus_readw(qpti->qregs + HCCTRL) & HCCTRL_HIRQ)) { |
| 192 | barrier(); |
| 193 | cpu_relax(); |
| 194 | } |
| 195 | if (!loop_count) |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 196 | printk(KERN_EMERG "qlogicpti%d: mbox_command loop timeout #1\n", |
| 197 | qpti->qpti_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
| 199 | /* Write mailbox command registers. */ |
| 200 | switch (mbox_param[param[0]] >> 4) { |
| 201 | case 6: sbus_writew(param[5], qpti->qregs + MBOX5); |
| 202 | case 5: sbus_writew(param[4], qpti->qregs + MBOX4); |
| 203 | case 4: sbus_writew(param[3], qpti->qregs + MBOX3); |
| 204 | case 3: sbus_writew(param[2], qpti->qregs + MBOX2); |
| 205 | case 2: sbus_writew(param[1], qpti->qregs + MBOX1); |
| 206 | case 1: sbus_writew(param[0], qpti->qregs + MBOX0); |
| 207 | } |
| 208 | |
| 209 | /* Clear RISC interrupt. */ |
| 210 | tmp = sbus_readw(qpti->qregs + HCCTRL); |
| 211 | tmp |= HCCTRL_CRIRQ; |
| 212 | sbus_writew(tmp, qpti->qregs + HCCTRL); |
| 213 | |
| 214 | /* Clear SBUS semaphore. */ |
| 215 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); |
| 216 | |
| 217 | /* Set HOST interrupt. */ |
| 218 | tmp = sbus_readw(qpti->qregs + HCCTRL); |
| 219 | tmp |= HCCTRL_SHIRQ; |
| 220 | sbus_writew(tmp, qpti->qregs + HCCTRL); |
| 221 | |
| 222 | /* Wait for HOST interrupt clears. */ |
| 223 | loop_count = DEFAULT_LOOP_COUNT; |
| 224 | while (--loop_count && |
| 225 | (sbus_readw(qpti->qregs + HCCTRL) & HCCTRL_CRIRQ)) |
| 226 | udelay(20); |
| 227 | if (!loop_count) |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 228 | printk(KERN_EMERG "qlogicpti%d: mbox_command[%04x] loop timeout #2\n", |
| 229 | qpti->qpti_id, param[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
| 231 | /* Wait for SBUS semaphore to get set. */ |
| 232 | loop_count = DEFAULT_LOOP_COUNT; |
| 233 | while (--loop_count && |
| 234 | !(sbus_readw(qpti->qregs + SBUS_SEMAPHORE) & SBUS_SEMAPHORE_LCK)) { |
| 235 | udelay(20); |
| 236 | |
| 237 | /* Workaround for some buggy chips. */ |
| 238 | if (sbus_readw(qpti->qregs + MBOX0) & 0x4000) |
| 239 | break; |
| 240 | } |
| 241 | if (!loop_count) |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 242 | printk(KERN_EMERG "qlogicpti%d: mbox_command[%04x] loop timeout #3\n", |
| 243 | qpti->qpti_id, param[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | |
| 245 | /* Wait for MBOX busy condition to go away. */ |
| 246 | loop_count = DEFAULT_LOOP_COUNT; |
| 247 | while (--loop_count && (sbus_readw(qpti->qregs + MBOX0) == 0x04)) |
| 248 | udelay(20); |
| 249 | if (!loop_count) |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 250 | printk(KERN_EMERG "qlogicpti%d: mbox_command[%04x] loop timeout #4\n", |
| 251 | qpti->qpti_id, param[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
| 253 | /* Read back output parameters. */ |
| 254 | switch (mbox_param[param[0]] & 0xf) { |
| 255 | case 6: param[5] = sbus_readw(qpti->qregs + MBOX5); |
| 256 | case 5: param[4] = sbus_readw(qpti->qregs + MBOX4); |
| 257 | case 4: param[3] = sbus_readw(qpti->qregs + MBOX3); |
| 258 | case 3: param[2] = sbus_readw(qpti->qregs + MBOX2); |
| 259 | case 2: param[1] = sbus_readw(qpti->qregs + MBOX1); |
| 260 | case 1: param[0] = sbus_readw(qpti->qregs + MBOX0); |
| 261 | } |
| 262 | |
| 263 | /* Clear RISC interrupt. */ |
| 264 | tmp = sbus_readw(qpti->qregs + HCCTRL); |
| 265 | tmp |= HCCTRL_CRIRQ; |
| 266 | sbus_writew(tmp, qpti->qregs + HCCTRL); |
| 267 | |
| 268 | /* Release SBUS semaphore. */ |
| 269 | tmp = sbus_readw(qpti->qregs + SBUS_SEMAPHORE); |
| 270 | tmp &= ~(SBUS_SEMAPHORE_LCK); |
| 271 | sbus_writew(tmp, qpti->qregs + SBUS_SEMAPHORE); |
| 272 | |
| 273 | /* We're done. */ |
| 274 | return 0; |
| 275 | } |
| 276 | |
| 277 | static inline void qlogicpti_set_hostdev_defaults(struct qlogicpti *qpti) |
| 278 | { |
| 279 | int i; |
| 280 | |
| 281 | qpti->host_param.initiator_scsi_id = qpti->scsi_id; |
| 282 | qpti->host_param.bus_reset_delay = 3; |
| 283 | qpti->host_param.retry_count = 0; |
| 284 | qpti->host_param.retry_delay = 5; |
| 285 | qpti->host_param.async_data_setup_time = 3; |
| 286 | qpti->host_param.req_ack_active_negation = 1; |
| 287 | qpti->host_param.data_line_active_negation = 1; |
| 288 | qpti->host_param.data_dma_burst_enable = 1; |
| 289 | qpti->host_param.command_dma_burst_enable = 1; |
| 290 | qpti->host_param.tag_aging = 8; |
| 291 | qpti->host_param.selection_timeout = 250; |
| 292 | qpti->host_param.max_queue_depth = 256; |
| 293 | |
| 294 | for(i = 0; i < MAX_TARGETS; i++) { |
| 295 | /* |
| 296 | * disconnect, parity, arq, reneg on reset, and, oddly enough |
| 297 | * tags...the midlayer's notion of tagged support has to match |
| 298 | * our device settings, and since we base whether we enable a |
| 299 | * tag on a per-cmnd basis upon what the midlayer sez, we |
| 300 | * actually enable the capability here. |
| 301 | */ |
| 302 | qpti->dev_param[i].device_flags = 0xcd; |
| 303 | qpti->dev_param[i].execution_throttle = 16; |
| 304 | if (qpti->ultra) { |
| 305 | qpti->dev_param[i].synchronous_period = 12; |
| 306 | qpti->dev_param[i].synchronous_offset = 8; |
| 307 | } else { |
| 308 | qpti->dev_param[i].synchronous_period = 25; |
| 309 | qpti->dev_param[i].synchronous_offset = 12; |
| 310 | } |
| 311 | qpti->dev_param[i].device_enable = 1; |
| 312 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | static int qlogicpti_reset_hardware(struct Scsi_Host *host) |
| 316 | { |
| 317 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; |
| 318 | u_short param[6]; |
| 319 | unsigned short risc_code_addr; |
| 320 | int loop_count, i; |
| 321 | unsigned long flags; |
| 322 | |
| 323 | risc_code_addr = 0x1000; /* all load addresses are at 0x1000 */ |
| 324 | |
| 325 | spin_lock_irqsave(host->host_lock, flags); |
| 326 | |
| 327 | sbus_writew(HCCTRL_PAUSE, qpti->qregs + HCCTRL); |
| 328 | |
| 329 | /* Only reset the scsi bus if it is not free. */ |
| 330 | if (sbus_readw(qpti->qregs + CPU_PCTRL) & CPU_PCTRL_BSY) { |
| 331 | sbus_writew(CPU_ORIDE_RMOD, qpti->qregs + CPU_ORIDE); |
| 332 | sbus_writew(CPU_CMD_BRESET, qpti->qregs + CPU_CMD); |
| 333 | udelay(400); |
| 334 | } |
| 335 | |
| 336 | sbus_writew(SBUS_CTRL_RESET, qpti->qregs + SBUS_CTRL); |
| 337 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + CMD_DMA_CTRL); |
| 338 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + DATA_DMA_CTRL); |
| 339 | |
| 340 | loop_count = DEFAULT_LOOP_COUNT; |
| 341 | while (--loop_count && ((sbus_readw(qpti->qregs + MBOX0) & 0xff) == 0x04)) |
| 342 | udelay(20); |
| 343 | if (!loop_count) |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 344 | printk(KERN_EMERG "qlogicpti%d: reset_hardware loop timeout\n", |
| 345 | qpti->qpti_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
| 347 | sbus_writew(HCCTRL_PAUSE, qpti->qregs + HCCTRL); |
| 348 | set_sbus_cfg1(qpti); |
| 349 | qlogicpti_enable_irqs(qpti); |
| 350 | |
| 351 | if (sbus_readw(qpti->qregs + RISC_PSR) & RISC_PSR_ULTRA) { |
| 352 | qpti->ultra = 1; |
| 353 | sbus_writew((RISC_MTREG_P0ULTRA | RISC_MTREG_P1ULTRA), |
| 354 | qpti->qregs + RISC_MTREG); |
| 355 | } else { |
| 356 | qpti->ultra = 0; |
| 357 | sbus_writew((RISC_MTREG_P0DFLT | RISC_MTREG_P1DFLT), |
| 358 | qpti->qregs + RISC_MTREG); |
| 359 | } |
| 360 | |
| 361 | /* reset adapter and per-device default values. */ |
| 362 | /* do it after finding out whether we're ultra mode capable */ |
| 363 | qlogicpti_set_hostdev_defaults(qpti); |
| 364 | |
| 365 | /* Release the RISC processor. */ |
| 366 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); |
| 367 | |
| 368 | /* Get RISC to start executing the firmware code. */ |
| 369 | param[0] = MBOX_EXEC_FIRMWARE; |
| 370 | param[1] = risc_code_addr; |
| 371 | if (qlogicpti_mbox_command(qpti, param, 1)) { |
| 372 | printk(KERN_EMERG "qlogicpti%d: Cannot execute ISP firmware.\n", |
| 373 | qpti->qpti_id); |
| 374 | spin_unlock_irqrestore(host->host_lock, flags); |
| 375 | return 1; |
| 376 | } |
| 377 | |
| 378 | /* Set initiator scsi ID. */ |
| 379 | param[0] = MBOX_SET_INIT_SCSI_ID; |
| 380 | param[1] = qpti->host_param.initiator_scsi_id; |
| 381 | if (qlogicpti_mbox_command(qpti, param, 1) || |
| 382 | (param[0] != MBOX_COMMAND_COMPLETE)) { |
| 383 | printk(KERN_EMERG "qlogicpti%d: Cannot set initiator SCSI ID.\n", |
| 384 | qpti->qpti_id); |
| 385 | spin_unlock_irqrestore(host->host_lock, flags); |
| 386 | return 1; |
| 387 | } |
| 388 | |
| 389 | /* Initialize state of the queues, both hw and sw. */ |
| 390 | qpti->req_in_ptr = qpti->res_out_ptr = 0; |
| 391 | |
| 392 | param[0] = MBOX_INIT_RES_QUEUE; |
| 393 | param[1] = RES_QUEUE_LEN + 1; |
| 394 | param[2] = (u_short) (qpti->res_dvma >> 16); |
| 395 | param[3] = (u_short) (qpti->res_dvma & 0xffff); |
| 396 | param[4] = param[5] = 0; |
| 397 | if (qlogicpti_mbox_command(qpti, param, 1)) { |
| 398 | printk(KERN_EMERG "qlogicpti%d: Cannot init response queue.\n", |
| 399 | qpti->qpti_id); |
| 400 | spin_unlock_irqrestore(host->host_lock, flags); |
| 401 | return 1; |
| 402 | } |
| 403 | |
| 404 | param[0] = MBOX_INIT_REQ_QUEUE; |
| 405 | param[1] = QLOGICPTI_REQ_QUEUE_LEN + 1; |
| 406 | param[2] = (u_short) (qpti->req_dvma >> 16); |
| 407 | param[3] = (u_short) (qpti->req_dvma & 0xffff); |
| 408 | param[4] = param[5] = 0; |
| 409 | if (qlogicpti_mbox_command(qpti, param, 1)) { |
| 410 | printk(KERN_EMERG "qlogicpti%d: Cannot init request queue.\n", |
| 411 | qpti->qpti_id); |
| 412 | spin_unlock_irqrestore(host->host_lock, flags); |
| 413 | return 1; |
| 414 | } |
| 415 | |
| 416 | param[0] = MBOX_SET_RETRY_COUNT; |
| 417 | param[1] = qpti->host_param.retry_count; |
| 418 | param[2] = qpti->host_param.retry_delay; |
| 419 | qlogicpti_mbox_command(qpti, param, 0); |
| 420 | |
| 421 | param[0] = MBOX_SET_TAG_AGE_LIMIT; |
| 422 | param[1] = qpti->host_param.tag_aging; |
| 423 | qlogicpti_mbox_command(qpti, param, 0); |
| 424 | |
| 425 | for (i = 0; i < MAX_TARGETS; i++) { |
| 426 | param[0] = MBOX_GET_DEV_QUEUE_PARAMS; |
| 427 | param[1] = (i << 8); |
| 428 | qlogicpti_mbox_command(qpti, param, 0); |
| 429 | } |
| 430 | |
| 431 | param[0] = MBOX_GET_FIRMWARE_STATUS; |
| 432 | qlogicpti_mbox_command(qpti, param, 0); |
| 433 | |
| 434 | param[0] = MBOX_SET_SELECT_TIMEOUT; |
| 435 | param[1] = qpti->host_param.selection_timeout; |
| 436 | qlogicpti_mbox_command(qpti, param, 0); |
| 437 | |
| 438 | for (i = 0; i < MAX_TARGETS; i++) { |
| 439 | param[0] = MBOX_SET_TARGET_PARAMS; |
| 440 | param[1] = (i << 8); |
| 441 | param[2] = (qpti->dev_param[i].device_flags << 8); |
| 442 | /* |
| 443 | * Since we're now loading 1.31 f/w, force narrow/async. |
| 444 | */ |
| 445 | param[2] |= 0xc0; |
| 446 | param[3] = 0; /* no offset, we do not have sync mode yet */ |
| 447 | qlogicpti_mbox_command(qpti, param, 0); |
| 448 | } |
| 449 | |
| 450 | /* |
| 451 | * Always (sigh) do an initial bus reset (kicks f/w). |
| 452 | */ |
| 453 | param[0] = MBOX_BUS_RESET; |
| 454 | param[1] = qpti->host_param.bus_reset_delay; |
| 455 | qlogicpti_mbox_command(qpti, param, 0); |
| 456 | qpti->send_marker = 1; |
| 457 | |
| 458 | spin_unlock_irqrestore(host->host_lock, flags); |
| 459 | return 0; |
| 460 | } |
| 461 | |
| 462 | #define PTI_RESET_LIMIT 400 |
| 463 | |
Ben Collins | b48194b | 2006-10-17 19:11:31 -0700 | [diff] [blame] | 464 | static int __devinit qlogicpti_load_firmware(struct qlogicpti *qpti) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | { |
| 466 | struct Scsi_Host *host = qpti->qhost; |
| 467 | unsigned short csum = 0; |
| 468 | unsigned short param[6]; |
| 469 | unsigned short *risc_code, risc_code_addr, risc_code_length; |
| 470 | unsigned long flags; |
| 471 | int i, timeout; |
| 472 | |
| 473 | risc_code = &sbus_risc_code01[0]; |
| 474 | risc_code_addr = 0x1000; /* all f/w modules load at 0x1000 */ |
| 475 | risc_code_length = sbus_risc_code_length01; |
| 476 | |
| 477 | spin_lock_irqsave(host->host_lock, flags); |
| 478 | |
| 479 | /* Verify the checksum twice, one before loading it, and once |
| 480 | * afterwards via the mailbox commands. |
| 481 | */ |
| 482 | for (i = 0; i < risc_code_length; i++) |
| 483 | csum += risc_code[i]; |
| 484 | if (csum) { |
| 485 | spin_unlock_irqrestore(host->host_lock, flags); |
| 486 | printk(KERN_EMERG "qlogicpti%d: Aieee, firmware checksum failed!", |
| 487 | qpti->qpti_id); |
| 488 | return 1; |
| 489 | } |
| 490 | sbus_writew(SBUS_CTRL_RESET, qpti->qregs + SBUS_CTRL); |
| 491 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + CMD_DMA_CTRL); |
| 492 | sbus_writew((DMA_CTRL_CCLEAR | DMA_CTRL_CIRQ), qpti->qregs + DATA_DMA_CTRL); |
| 493 | timeout = PTI_RESET_LIMIT; |
| 494 | while (--timeout && (sbus_readw(qpti->qregs + SBUS_CTRL) & SBUS_CTRL_RESET)) |
| 495 | udelay(20); |
| 496 | if (!timeout) { |
| 497 | spin_unlock_irqrestore(host->host_lock, flags); |
| 498 | printk(KERN_EMERG "qlogicpti%d: Cannot reset the ISP.", qpti->qpti_id); |
| 499 | return 1; |
| 500 | } |
| 501 | |
| 502 | sbus_writew(HCCTRL_RESET, qpti->qregs + HCCTRL); |
| 503 | mdelay(1); |
| 504 | |
| 505 | sbus_writew((SBUS_CTRL_GENAB | SBUS_CTRL_ERIRQ), qpti->qregs + SBUS_CTRL); |
| 506 | set_sbus_cfg1(qpti); |
| 507 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); |
| 508 | |
| 509 | if (sbus_readw(qpti->qregs + RISC_PSR) & RISC_PSR_ULTRA) { |
| 510 | qpti->ultra = 1; |
| 511 | sbus_writew((RISC_MTREG_P0ULTRA | RISC_MTREG_P1ULTRA), |
| 512 | qpti->qregs + RISC_MTREG); |
| 513 | } else { |
| 514 | qpti->ultra = 0; |
| 515 | sbus_writew((RISC_MTREG_P0DFLT | RISC_MTREG_P1DFLT), |
| 516 | qpti->qregs + RISC_MTREG); |
| 517 | } |
| 518 | |
| 519 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); |
| 520 | |
| 521 | /* Pin lines are only stable while RISC is paused. */ |
| 522 | sbus_writew(HCCTRL_PAUSE, qpti->qregs + HCCTRL); |
| 523 | if (sbus_readw(qpti->qregs + CPU_PDIFF) & CPU_PDIFF_MODE) |
| 524 | qpti->differential = 1; |
| 525 | else |
| 526 | qpti->differential = 0; |
| 527 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); |
| 528 | |
| 529 | /* This shouldn't be necessary- we've reset things so we should be |
| 530 | running from the ROM now.. */ |
| 531 | |
| 532 | param[0] = MBOX_STOP_FIRMWARE; |
| 533 | param[1] = param[2] = param[3] = param[4] = param[5] = 0; |
| 534 | if (qlogicpti_mbox_command(qpti, param, 1)) { |
| 535 | printk(KERN_EMERG "qlogicpti%d: Cannot stop firmware for reload.\n", |
| 536 | qpti->qpti_id); |
| 537 | spin_unlock_irqrestore(host->host_lock, flags); |
| 538 | return 1; |
| 539 | } |
| 540 | |
| 541 | /* Load it up.. */ |
| 542 | for (i = 0; i < risc_code_length; i++) { |
| 543 | param[0] = MBOX_WRITE_RAM_WORD; |
| 544 | param[1] = risc_code_addr + i; |
| 545 | param[2] = risc_code[i]; |
| 546 | if (qlogicpti_mbox_command(qpti, param, 1) || |
| 547 | param[0] != MBOX_COMMAND_COMPLETE) { |
| 548 | printk("qlogicpti%d: Firmware dload failed, I'm bolixed!\n", |
| 549 | qpti->qpti_id); |
| 550 | spin_unlock_irqrestore(host->host_lock, flags); |
| 551 | return 1; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | /* Reset the ISP again. */ |
| 556 | sbus_writew(HCCTRL_RESET, qpti->qregs + HCCTRL); |
| 557 | mdelay(1); |
| 558 | |
| 559 | qlogicpti_enable_irqs(qpti); |
| 560 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); |
| 561 | sbus_writew(HCCTRL_REL, qpti->qregs + HCCTRL); |
| 562 | |
| 563 | /* Ask ISP to verify the checksum of the new code. */ |
| 564 | param[0] = MBOX_VERIFY_CHECKSUM; |
| 565 | param[1] = risc_code_addr; |
| 566 | if (qlogicpti_mbox_command(qpti, param, 1) || |
| 567 | (param[0] != MBOX_COMMAND_COMPLETE)) { |
| 568 | printk(KERN_EMERG "qlogicpti%d: New firmware csum failure!\n", |
| 569 | qpti->qpti_id); |
| 570 | spin_unlock_irqrestore(host->host_lock, flags); |
| 571 | return 1; |
| 572 | } |
| 573 | |
| 574 | /* Start using newly downloaded firmware. */ |
| 575 | param[0] = MBOX_EXEC_FIRMWARE; |
| 576 | param[1] = risc_code_addr; |
| 577 | qlogicpti_mbox_command(qpti, param, 1); |
| 578 | |
| 579 | param[0] = MBOX_ABOUT_FIRMWARE; |
| 580 | if (qlogicpti_mbox_command(qpti, param, 1) || |
| 581 | (param[0] != MBOX_COMMAND_COMPLETE)) { |
| 582 | printk(KERN_EMERG "qlogicpti%d: AboutFirmware cmd fails.\n", |
| 583 | qpti->qpti_id); |
| 584 | spin_unlock_irqrestore(host->host_lock, flags); |
| 585 | return 1; |
| 586 | } |
| 587 | |
| 588 | /* Snag the major and minor revisions from the result. */ |
| 589 | qpti->fware_majrev = param[1]; |
| 590 | qpti->fware_minrev = param[2]; |
| 591 | qpti->fware_micrev = param[3]; |
| 592 | |
| 593 | /* Set the clock rate */ |
| 594 | param[0] = MBOX_SET_CLOCK_RATE; |
| 595 | param[1] = qpti->clock; |
| 596 | if (qlogicpti_mbox_command(qpti, param, 1) || |
| 597 | (param[0] != MBOX_COMMAND_COMPLETE)) { |
| 598 | printk(KERN_EMERG "qlogicpti%d: could not set clock rate.\n", |
| 599 | qpti->qpti_id); |
| 600 | spin_unlock_irqrestore(host->host_lock, flags); |
| 601 | return 1; |
| 602 | } |
| 603 | |
| 604 | if (qpti->is_pti != 0) { |
| 605 | /* Load scsi initiator ID and interrupt level into sbus static ram. */ |
| 606 | param[0] = MBOX_WRITE_RAM_WORD; |
| 607 | param[1] = 0xff80; |
| 608 | param[2] = (unsigned short) qpti->scsi_id; |
| 609 | qlogicpti_mbox_command(qpti, param, 1); |
| 610 | |
| 611 | param[0] = MBOX_WRITE_RAM_WORD; |
| 612 | param[1] = 0xff00; |
| 613 | param[2] = (unsigned short) 3; |
| 614 | qlogicpti_mbox_command(qpti, param, 1); |
| 615 | } |
| 616 | |
| 617 | spin_unlock_irqrestore(host->host_lock, flags); |
| 618 | return 0; |
| 619 | } |
| 620 | |
| 621 | static int qlogicpti_verify_tmon(struct qlogicpti *qpti) |
| 622 | { |
| 623 | int curstat = sbus_readb(qpti->sreg); |
| 624 | |
| 625 | curstat &= 0xf0; |
| 626 | if (!(curstat & SREG_FUSE) && (qpti->swsreg & SREG_FUSE)) |
| 627 | printk("qlogicpti%d: Fuse returned to normal state.\n", qpti->qpti_id); |
| 628 | if (!(curstat & SREG_TPOWER) && (qpti->swsreg & SREG_TPOWER)) |
| 629 | printk("qlogicpti%d: termpwr back to normal state.\n", qpti->qpti_id); |
| 630 | if (curstat != qpti->swsreg) { |
| 631 | int error = 0; |
| 632 | if (curstat & SREG_FUSE) { |
| 633 | error++; |
| 634 | printk("qlogicpti%d: Fuse is open!\n", qpti->qpti_id); |
| 635 | } |
| 636 | if (curstat & SREG_TPOWER) { |
| 637 | error++; |
| 638 | printk("qlogicpti%d: termpwr failure\n", qpti->qpti_id); |
| 639 | } |
| 640 | if (qpti->differential && |
| 641 | (curstat & SREG_DSENSE) != SREG_DSENSE) { |
| 642 | error++; |
| 643 | printk("qlogicpti%d: You have a single ended device on a " |
| 644 | "differential bus! Please fix!\n", qpti->qpti_id); |
| 645 | } |
| 646 | qpti->swsreg = curstat; |
| 647 | return error; |
| 648 | } |
| 649 | return 0; |
| 650 | } |
| 651 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 652 | static irqreturn_t qpti_intr(int irq, void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
| 654 | static void __init qpti_chain_add(struct qlogicpti *qpti) |
| 655 | { |
| 656 | spin_lock_irq(&qptichain_lock); |
| 657 | if (qptichain != NULL) { |
| 658 | struct qlogicpti *qlink = qptichain; |
| 659 | |
| 660 | while(qlink->next) |
| 661 | qlink = qlink->next; |
| 662 | qlink->next = qpti; |
| 663 | } else { |
| 664 | qptichain = qpti; |
| 665 | } |
| 666 | qpti->next = NULL; |
| 667 | spin_unlock_irq(&qptichain_lock); |
| 668 | } |
| 669 | |
| 670 | static void __init qpti_chain_del(struct qlogicpti *qpti) |
| 671 | { |
| 672 | spin_lock_irq(&qptichain_lock); |
| 673 | if (qptichain == qpti) { |
| 674 | qptichain = qpti->next; |
| 675 | } else { |
| 676 | struct qlogicpti *qlink = qptichain; |
| 677 | while(qlink->next != qpti) |
| 678 | qlink = qlink->next; |
| 679 | qlink->next = qpti->next; |
| 680 | } |
| 681 | qpti->next = NULL; |
| 682 | spin_unlock_irq(&qptichain_lock); |
| 683 | } |
| 684 | |
| 685 | static int __init qpti_map_regs(struct qlogicpti *qpti) |
| 686 | { |
| 687 | struct sbus_dev *sdev = qpti->sdev; |
| 688 | |
| 689 | qpti->qregs = sbus_ioremap(&sdev->resource[0], 0, |
| 690 | sdev->reg_addrs[0].reg_size, |
| 691 | "PTI Qlogic/ISP"); |
| 692 | if (!qpti->qregs) { |
| 693 | printk("PTI: Qlogic/ISP registers are unmappable\n"); |
| 694 | return -1; |
| 695 | } |
| 696 | if (qpti->is_pti) { |
| 697 | qpti->sreg = sbus_ioremap(&sdev->resource[0], (16 * 4096), |
| 698 | sizeof(unsigned char), |
| 699 | "PTI Qlogic/ISP statreg"); |
| 700 | if (!qpti->sreg) { |
| 701 | printk("PTI: Qlogic/ISP status register is unmappable\n"); |
| 702 | return -1; |
| 703 | } |
| 704 | } |
| 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | static int __init qpti_register_irq(struct qlogicpti *qpti) |
| 709 | { |
| 710 | struct sbus_dev *sdev = qpti->sdev; |
| 711 | |
| 712 | qpti->qhost->irq = qpti->irq = sdev->irqs[0]; |
| 713 | |
| 714 | /* We used to try various overly-clever things to |
| 715 | * reduce the interrupt processing overhead on |
| 716 | * sun4c/sun4m when multiple PTI's shared the |
| 717 | * same IRQ. It was too complex and messy to |
| 718 | * sanely maintain. |
| 719 | */ |
| 720 | if (request_irq(qpti->irq, qpti_intr, |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 721 | IRQF_SHARED, "Qlogic/PTI", qpti)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | goto fail; |
| 723 | |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 724 | printk("qlogicpti%d: IRQ %d ", qpti->qpti_id, qpti->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | |
| 726 | return 0; |
| 727 | |
| 728 | fail: |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 729 | printk("qlogicpti%d: Cannot acquire irq line\n", qpti->qpti_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | return -1; |
| 731 | } |
| 732 | |
| 733 | static void __init qpti_get_scsi_id(struct qlogicpti *qpti) |
| 734 | { |
| 735 | qpti->scsi_id = prom_getintdefault(qpti->prom_node, |
| 736 | "initiator-id", |
| 737 | -1); |
| 738 | if (qpti->scsi_id == -1) |
| 739 | qpti->scsi_id = prom_getintdefault(qpti->prom_node, |
| 740 | "scsi-initiator-id", |
| 741 | -1); |
| 742 | if (qpti->scsi_id == -1) |
| 743 | qpti->scsi_id = |
| 744 | prom_getintdefault(qpti->sdev->bus->prom_node, |
| 745 | "scsi-initiator-id", 7); |
| 746 | qpti->qhost->this_id = qpti->scsi_id; |
| 747 | qpti->qhost->max_sectors = 64; |
| 748 | |
| 749 | printk("SCSI ID %d ", qpti->scsi_id); |
| 750 | } |
| 751 | |
| 752 | static void qpti_get_bursts(struct qlogicpti *qpti) |
| 753 | { |
| 754 | struct sbus_dev *sdev = qpti->sdev; |
| 755 | u8 bursts, bmask; |
| 756 | |
| 757 | bursts = prom_getintdefault(qpti->prom_node, "burst-sizes", 0xff); |
| 758 | bmask = prom_getintdefault(sdev->bus->prom_node, |
| 759 | "burst-sizes", 0xff); |
| 760 | if (bmask != 0xff) |
| 761 | bursts &= bmask; |
| 762 | if (bursts == 0xff || |
| 763 | (bursts & DMA_BURST16) == 0 || |
| 764 | (bursts & DMA_BURST32) == 0) |
| 765 | bursts = (DMA_BURST32 - 1); |
| 766 | |
| 767 | qpti->bursts = bursts; |
| 768 | } |
| 769 | |
| 770 | static void qpti_get_clock(struct qlogicpti *qpti) |
| 771 | { |
| 772 | unsigned int cfreq; |
| 773 | |
| 774 | /* Check for what the clock input to this card is. |
| 775 | * Default to 40Mhz. |
| 776 | */ |
| 777 | cfreq = prom_getintdefault(qpti->prom_node,"clock-frequency",40000000); |
| 778 | qpti->clock = (cfreq + 500000)/1000000; |
| 779 | if (qpti->clock == 0) /* bullshit */ |
| 780 | qpti->clock = 40; |
| 781 | } |
| 782 | |
| 783 | /* The request and response queues must each be aligned |
| 784 | * on a page boundary. |
| 785 | */ |
| 786 | static int __init qpti_map_queues(struct qlogicpti *qpti) |
| 787 | { |
| 788 | struct sbus_dev *sdev = qpti->sdev; |
| 789 | |
| 790 | #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) |
| 791 | qpti->res_cpu = sbus_alloc_consistent(sdev, |
| 792 | QSIZE(RES_QUEUE_LEN), |
| 793 | &qpti->res_dvma); |
| 794 | if (qpti->res_cpu == NULL || |
| 795 | qpti->res_dvma == 0) { |
| 796 | printk("QPTI: Cannot map response queue.\n"); |
| 797 | return -1; |
| 798 | } |
| 799 | |
| 800 | qpti->req_cpu = sbus_alloc_consistent(sdev, |
| 801 | QSIZE(QLOGICPTI_REQ_QUEUE_LEN), |
| 802 | &qpti->req_dvma); |
| 803 | if (qpti->req_cpu == NULL || |
| 804 | qpti->req_dvma == 0) { |
| 805 | sbus_free_consistent(sdev, QSIZE(RES_QUEUE_LEN), |
| 806 | qpti->res_cpu, qpti->res_dvma); |
| 807 | printk("QPTI: Cannot map request queue.\n"); |
| 808 | return -1; |
| 809 | } |
| 810 | memset(qpti->res_cpu, 0, QSIZE(RES_QUEUE_LEN)); |
| 811 | memset(qpti->req_cpu, 0, QSIZE(QLOGICPTI_REQ_QUEUE_LEN)); |
| 812 | return 0; |
| 813 | } |
| 814 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | const char *qlogicpti_info(struct Scsi_Host *host) |
| 816 | { |
| 817 | static char buf[80]; |
| 818 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; |
| 819 | |
David S. Miller | c6387a4 | 2006-06-20 01:21:29 -0700 | [diff] [blame] | 820 | sprintf(buf, "PTI Qlogic,ISP SBUS SCSI irq %d regs at %p", |
| 821 | qpti->qhost->irq, qpti->qregs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | return buf; |
| 823 | } |
| 824 | |
| 825 | /* I am a certified frobtronicist. */ |
| 826 | static inline void marker_frob(struct Command_Entry *cmd) |
| 827 | { |
| 828 | struct Marker_Entry *marker = (struct Marker_Entry *) cmd; |
| 829 | |
| 830 | memset(marker, 0, sizeof(struct Marker_Entry)); |
| 831 | marker->hdr.entry_cnt = 1; |
| 832 | marker->hdr.entry_type = ENTRY_MARKER; |
| 833 | marker->modifier = SYNC_ALL; |
| 834 | marker->rsvd = 0; |
| 835 | } |
| 836 | |
| 837 | static inline void cmd_frob(struct Command_Entry *cmd, struct scsi_cmnd *Cmnd, |
| 838 | struct qlogicpti *qpti) |
| 839 | { |
| 840 | memset(cmd, 0, sizeof(struct Command_Entry)); |
| 841 | cmd->hdr.entry_cnt = 1; |
| 842 | cmd->hdr.entry_type = ENTRY_COMMAND; |
| 843 | cmd->target_id = Cmnd->device->id; |
| 844 | cmd->target_lun = Cmnd->device->lun; |
| 845 | cmd->cdb_length = Cmnd->cmd_len; |
| 846 | cmd->control_flags = 0; |
| 847 | if (Cmnd->device->tagged_supported) { |
| 848 | if (qpti->cmd_count[Cmnd->device->id] == 0) |
| 849 | qpti->tag_ages[Cmnd->device->id] = jiffies; |
Marcelo Feitoza Parisi | 60c904a | 2006-03-28 01:56:47 -0800 | [diff] [blame] | 850 | if (time_after(jiffies, qpti->tag_ages[Cmnd->device->id] + (5*HZ))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | cmd->control_flags = CFLAG_ORDERED_TAG; |
| 852 | qpti->tag_ages[Cmnd->device->id] = jiffies; |
| 853 | } else |
| 854 | cmd->control_flags = CFLAG_SIMPLE_TAG; |
| 855 | } |
| 856 | if ((Cmnd->cmnd[0] == WRITE_6) || |
| 857 | (Cmnd->cmnd[0] == WRITE_10) || |
| 858 | (Cmnd->cmnd[0] == WRITE_12)) |
| 859 | cmd->control_flags |= CFLAG_WRITE; |
| 860 | else |
| 861 | cmd->control_flags |= CFLAG_READ; |
| 862 | cmd->time_out = 30; |
| 863 | memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len); |
| 864 | } |
| 865 | |
| 866 | /* Do it to it baby. */ |
| 867 | static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd, |
| 868 | struct qlogicpti *qpti, u_int in_ptr, u_int out_ptr) |
| 869 | { |
| 870 | struct dataseg *ds; |
Jens Axboe | 2f08fe5 | 2007-05-09 13:43:12 +0200 | [diff] [blame] | 871 | struct scatterlist *sg, *s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | int i, n; |
| 873 | |
Boaz Harrosh | dfb104f | 2007-09-09 21:21:35 +0300 | [diff] [blame] | 874 | if (scsi_bufflen(Cmnd)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | int sg_count; |
| 876 | |
Boaz Harrosh | dfb104f | 2007-09-09 21:21:35 +0300 | [diff] [blame] | 877 | sg = scsi_sglist(Cmnd); |
| 878 | sg_count = sbus_map_sg(qpti->sdev, sg, scsi_sg_count(Cmnd), |
| 879 | Cmnd->sc_data_direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | |
| 881 | ds = cmd->dataseg; |
| 882 | cmd->segment_cnt = sg_count; |
| 883 | |
| 884 | /* Fill in first four sg entries: */ |
| 885 | n = sg_count; |
| 886 | if (n > 4) |
| 887 | n = 4; |
Jens Axboe | 2f08fe5 | 2007-05-09 13:43:12 +0200 | [diff] [blame] | 888 | for_each_sg(sg, s, n, i) { |
| 889 | ds[i].d_base = sg_dma_address(s); |
| 890 | ds[i].d_count = sg_dma_len(s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | } |
| 892 | sg_count -= 4; |
Jens Axboe | 2f08fe5 | 2007-05-09 13:43:12 +0200 | [diff] [blame] | 893 | sg = s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | while (sg_count > 0) { |
| 895 | struct Continuation_Entry *cont; |
| 896 | |
| 897 | ++cmd->hdr.entry_cnt; |
| 898 | cont = (struct Continuation_Entry *) &qpti->req_cpu[in_ptr]; |
| 899 | in_ptr = NEXT_REQ_PTR(in_ptr); |
| 900 | if (in_ptr == out_ptr) |
| 901 | return -1; |
| 902 | |
| 903 | cont->hdr.entry_type = ENTRY_CONTINUATION; |
| 904 | cont->hdr.entry_cnt = 0; |
| 905 | cont->hdr.sys_def_1 = 0; |
| 906 | cont->hdr.flags = 0; |
| 907 | cont->reserved = 0; |
| 908 | ds = cont->dataseg; |
| 909 | n = sg_count; |
| 910 | if (n > 7) |
| 911 | n = 7; |
Jens Axboe | 2f08fe5 | 2007-05-09 13:43:12 +0200 | [diff] [blame] | 912 | for_each_sg(sg, s, n, i) { |
| 913 | ds[i].d_base = sg_dma_address(s); |
| 914 | ds[i].d_count = sg_dma_len(s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | } |
| 916 | sg_count -= n; |
| 917 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | } else { |
| 919 | cmd->dataseg[0].d_base = 0; |
| 920 | cmd->dataseg[0].d_count = 0; |
| 921 | cmd->segment_cnt = 1; /* Shouldn't this be 0? */ |
| 922 | } |
| 923 | |
| 924 | /* Committed, record Scsi_Cmd so we can find it later. */ |
| 925 | cmd->handle = in_ptr; |
| 926 | qpti->cmd_slots[in_ptr] = Cmnd; |
| 927 | |
| 928 | qpti->cmd_count[Cmnd->device->id]++; |
| 929 | sbus_writew(in_ptr, qpti->qregs + MBOX4); |
| 930 | qpti->req_in_ptr = in_ptr; |
| 931 | |
| 932 | return in_ptr; |
| 933 | } |
| 934 | |
| 935 | static inline void update_can_queue(struct Scsi_Host *host, u_int in_ptr, u_int out_ptr) |
| 936 | { |
| 937 | /* Temporary workaround until bug is found and fixed (one bug has been found |
| 938 | already, but fixing it makes things even worse) -jj */ |
| 939 | int num_free = QLOGICPTI_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr) - 64; |
| 940 | host->can_queue = host->host_busy + num_free; |
| 941 | host->sg_tablesize = QLOGICPTI_MAX_SG(num_free); |
| 942 | } |
| 943 | |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 944 | static int qlogicpti_slave_configure(struct scsi_device *sdev) |
David S. Miller | f75884d | 2005-10-14 13:44:32 -0700 | [diff] [blame] | 945 | { |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 946 | struct qlogicpti *qpti = shost_priv(sdev->host); |
| 947 | int tgt = sdev->id; |
| 948 | u_short param[6]; |
David S. Miller | f75884d | 2005-10-14 13:44:32 -0700 | [diff] [blame] | 949 | |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 950 | /* tags handled in midlayer */ |
| 951 | /* enable sync mode? */ |
| 952 | if (sdev->sdtr) { |
| 953 | qpti->dev_param[tgt].device_flags |= 0x10; |
David S. Miller | f75884d | 2005-10-14 13:44:32 -0700 | [diff] [blame] | 954 | } else { |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 955 | qpti->dev_param[tgt].synchronous_offset = 0; |
| 956 | qpti->dev_param[tgt].synchronous_period = 0; |
David S. Miller | f75884d | 2005-10-14 13:44:32 -0700 | [diff] [blame] | 957 | } |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 958 | /* are we wide capable? */ |
| 959 | if (sdev->wdtr) |
| 960 | qpti->dev_param[tgt].device_flags |= 0x20; |
David S. Miller | f75884d | 2005-10-14 13:44:32 -0700 | [diff] [blame] | 961 | |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 962 | param[0] = MBOX_SET_TARGET_PARAMS; |
| 963 | param[1] = (tgt << 8); |
| 964 | param[2] = (qpti->dev_param[tgt].device_flags << 8); |
| 965 | if (qpti->dev_param[tgt].device_flags & 0x10) { |
| 966 | param[3] = (qpti->dev_param[tgt].synchronous_offset << 8) | |
| 967 | qpti->dev_param[tgt].synchronous_period; |
| 968 | } else { |
| 969 | param[3] = 0; |
David S. Miller | f75884d | 2005-10-14 13:44:32 -0700 | [diff] [blame] | 970 | } |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 971 | qlogicpti_mbox_command(qpti, param, 0); |
| 972 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | } |
| 974 | |
| 975 | /* |
| 976 | * The middle SCSI layer ensures that queuecommand never gets invoked |
| 977 | * concurrently with itself or the interrupt handler (though the |
| 978 | * interrupt handler may call this routine as part of |
| 979 | * request-completion handling). |
| 980 | * |
| 981 | * "This code must fly." -davem |
| 982 | */ |
| 983 | static int qlogicpti_queuecommand(struct scsi_cmnd *Cmnd, void (*done)(struct scsi_cmnd *)) |
| 984 | { |
| 985 | struct Scsi_Host *host = Cmnd->device->host; |
| 986 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; |
| 987 | struct Command_Entry *cmd; |
| 988 | u_int out_ptr; |
| 989 | int in_ptr; |
| 990 | |
| 991 | Cmnd->scsi_done = done; |
| 992 | |
| 993 | in_ptr = qpti->req_in_ptr; |
| 994 | cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr]; |
| 995 | out_ptr = sbus_readw(qpti->qregs + MBOX4); |
| 996 | in_ptr = NEXT_REQ_PTR(in_ptr); |
| 997 | if (in_ptr == out_ptr) |
| 998 | goto toss_command; |
| 999 | |
| 1000 | if (qpti->send_marker) { |
| 1001 | marker_frob(cmd); |
| 1002 | qpti->send_marker = 0; |
| 1003 | if (NEXT_REQ_PTR(in_ptr) == out_ptr) { |
| 1004 | sbus_writew(in_ptr, qpti->qregs + MBOX4); |
| 1005 | qpti->req_in_ptr = in_ptr; |
| 1006 | goto toss_command; |
| 1007 | } |
| 1008 | cmd = (struct Command_Entry *) &qpti->req_cpu[in_ptr]; |
| 1009 | in_ptr = NEXT_REQ_PTR(in_ptr); |
| 1010 | } |
| 1011 | cmd_frob(cmd, Cmnd, qpti); |
| 1012 | if ((in_ptr = load_cmd(Cmnd, cmd, qpti, in_ptr, out_ptr)) == -1) |
| 1013 | goto toss_command; |
| 1014 | |
| 1015 | update_can_queue(host, in_ptr, out_ptr); |
| 1016 | |
| 1017 | return 0; |
| 1018 | |
| 1019 | toss_command: |
| 1020 | printk(KERN_EMERG "qlogicpti%d: request queue overflow\n", |
| 1021 | qpti->qpti_id); |
| 1022 | |
| 1023 | /* Unfortunately, unless you use the new EH code, which |
| 1024 | * we don't, the midlayer will ignore the return value, |
| 1025 | * which is insane. We pick up the pieces like this. |
| 1026 | */ |
| 1027 | Cmnd->result = DID_BUS_BUSY; |
| 1028 | done(Cmnd); |
| 1029 | return 1; |
| 1030 | } |
| 1031 | |
| 1032 | static int qlogicpti_return_status(struct Status_Entry *sts, int id) |
| 1033 | { |
| 1034 | int host_status = DID_ERROR; |
| 1035 | |
| 1036 | switch (sts->completion_status) { |
| 1037 | case CS_COMPLETE: |
| 1038 | host_status = DID_OK; |
| 1039 | break; |
| 1040 | case CS_INCOMPLETE: |
| 1041 | if (!(sts->state_flags & SF_GOT_BUS)) |
| 1042 | host_status = DID_NO_CONNECT; |
| 1043 | else if (!(sts->state_flags & SF_GOT_TARGET)) |
| 1044 | host_status = DID_BAD_TARGET; |
| 1045 | else if (!(sts->state_flags & SF_SENT_CDB)) |
| 1046 | host_status = DID_ERROR; |
| 1047 | else if (!(sts->state_flags & SF_TRANSFERRED_DATA)) |
| 1048 | host_status = DID_ERROR; |
| 1049 | else if (!(sts->state_flags & SF_GOT_STATUS)) |
| 1050 | host_status = DID_ERROR; |
| 1051 | else if (!(sts->state_flags & SF_GOT_SENSE)) |
| 1052 | host_status = DID_ERROR; |
| 1053 | break; |
| 1054 | case CS_DMA_ERROR: |
| 1055 | case CS_TRANSPORT_ERROR: |
| 1056 | host_status = DID_ERROR; |
| 1057 | break; |
| 1058 | case CS_RESET_OCCURRED: |
| 1059 | case CS_BUS_RESET: |
| 1060 | host_status = DID_RESET; |
| 1061 | break; |
| 1062 | case CS_ABORTED: |
| 1063 | host_status = DID_ABORT; |
| 1064 | break; |
| 1065 | case CS_TIMEOUT: |
| 1066 | host_status = DID_TIME_OUT; |
| 1067 | break; |
| 1068 | case CS_DATA_OVERRUN: |
| 1069 | case CS_COMMAND_OVERRUN: |
| 1070 | case CS_STATUS_OVERRUN: |
| 1071 | case CS_BAD_MESSAGE: |
| 1072 | case CS_NO_MESSAGE_OUT: |
| 1073 | case CS_EXT_ID_FAILED: |
| 1074 | case CS_IDE_MSG_FAILED: |
| 1075 | case CS_ABORT_MSG_FAILED: |
| 1076 | case CS_NOP_MSG_FAILED: |
| 1077 | case CS_PARITY_ERROR_MSG_FAILED: |
| 1078 | case CS_DEVICE_RESET_MSG_FAILED: |
| 1079 | case CS_ID_MSG_FAILED: |
| 1080 | case CS_UNEXP_BUS_FREE: |
| 1081 | host_status = DID_ERROR; |
| 1082 | break; |
| 1083 | case CS_DATA_UNDERRUN: |
| 1084 | host_status = DID_OK; |
| 1085 | break; |
| 1086 | default: |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1087 | printk(KERN_EMERG "qlogicpti%d: unknown completion status 0x%04x\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | id, sts->completion_status); |
| 1089 | host_status = DID_ERROR; |
| 1090 | break; |
| 1091 | } |
| 1092 | |
| 1093 | return (sts->scsi_status & STATUS_MASK) | (host_status << 16); |
| 1094 | } |
| 1095 | |
| 1096 | static struct scsi_cmnd *qlogicpti_intr_handler(struct qlogicpti *qpti) |
| 1097 | { |
| 1098 | struct scsi_cmnd *Cmnd, *done_queue = NULL; |
| 1099 | struct Status_Entry *sts; |
| 1100 | u_int in_ptr, out_ptr; |
| 1101 | |
| 1102 | if (!(sbus_readw(qpti->qregs + SBUS_STAT) & SBUS_STAT_RINT)) |
| 1103 | return NULL; |
| 1104 | |
| 1105 | in_ptr = sbus_readw(qpti->qregs + MBOX5); |
| 1106 | sbus_writew(HCCTRL_CRIRQ, qpti->qregs + HCCTRL); |
| 1107 | if (sbus_readw(qpti->qregs + SBUS_SEMAPHORE) & SBUS_SEMAPHORE_LCK) { |
| 1108 | switch (sbus_readw(qpti->qregs + MBOX0)) { |
| 1109 | case ASYNC_SCSI_BUS_RESET: |
| 1110 | case EXECUTION_TIMEOUT_RESET: |
| 1111 | qpti->send_marker = 1; |
| 1112 | break; |
| 1113 | case INVALID_COMMAND: |
| 1114 | case HOST_INTERFACE_ERROR: |
| 1115 | case COMMAND_ERROR: |
| 1116 | case COMMAND_PARAM_ERROR: |
| 1117 | break; |
| 1118 | }; |
| 1119 | sbus_writew(0, qpti->qregs + SBUS_SEMAPHORE); |
| 1120 | } |
| 1121 | |
| 1122 | /* This looks like a network driver! */ |
| 1123 | out_ptr = qpti->res_out_ptr; |
| 1124 | while (out_ptr != in_ptr) { |
| 1125 | u_int cmd_slot; |
| 1126 | |
| 1127 | sts = (struct Status_Entry *) &qpti->res_cpu[out_ptr]; |
| 1128 | out_ptr = NEXT_RES_PTR(out_ptr); |
| 1129 | |
| 1130 | /* We store an index in the handle, not the pointer in |
| 1131 | * some form. This avoids problems due to the fact |
| 1132 | * that the handle provided is only 32-bits. -DaveM |
| 1133 | */ |
| 1134 | cmd_slot = sts->handle; |
| 1135 | Cmnd = qpti->cmd_slots[cmd_slot]; |
| 1136 | qpti->cmd_slots[cmd_slot] = NULL; |
| 1137 | |
| 1138 | if (sts->completion_status == CS_RESET_OCCURRED || |
| 1139 | sts->completion_status == CS_ABORTED || |
| 1140 | (sts->status_flags & STF_BUS_RESET)) |
| 1141 | qpti->send_marker = 1; |
| 1142 | |
| 1143 | if (sts->state_flags & SF_GOT_SENSE) |
| 1144 | memcpy(Cmnd->sense_buffer, sts->req_sense_data, |
FUJITA Tomonori | b80ca4f | 2008-01-13 15:46:13 +0900 | [diff] [blame] | 1145 | SCSI_SENSE_BUFFERSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | |
| 1147 | if (sts->hdr.entry_type == ENTRY_STATUS) |
| 1148 | Cmnd->result = |
| 1149 | qlogicpti_return_status(sts, qpti->qpti_id); |
| 1150 | else |
| 1151 | Cmnd->result = DID_ERROR << 16; |
| 1152 | |
Boaz Harrosh | dfb104f | 2007-09-09 21:21:35 +0300 | [diff] [blame] | 1153 | if (scsi_bufflen(Cmnd)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | sbus_unmap_sg(qpti->sdev, |
Boaz Harrosh | dfb104f | 2007-09-09 21:21:35 +0300 | [diff] [blame] | 1155 | scsi_sglist(Cmnd), scsi_sg_count(Cmnd), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | Cmnd->sc_data_direction); |
Boaz Harrosh | dfb104f | 2007-09-09 21:21:35 +0300 | [diff] [blame] | 1157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | qpti->cmd_count[Cmnd->device->id]--; |
| 1159 | sbus_writew(out_ptr, qpti->qregs + MBOX5); |
| 1160 | Cmnd->host_scribble = (unsigned char *) done_queue; |
| 1161 | done_queue = Cmnd; |
| 1162 | } |
| 1163 | qpti->res_out_ptr = out_ptr; |
| 1164 | |
| 1165 | return done_queue; |
| 1166 | } |
| 1167 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1168 | static irqreturn_t qpti_intr(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | { |
| 1170 | struct qlogicpti *qpti = dev_id; |
| 1171 | unsigned long flags; |
| 1172 | struct scsi_cmnd *dq; |
| 1173 | |
| 1174 | spin_lock_irqsave(qpti->qhost->host_lock, flags); |
| 1175 | dq = qlogicpti_intr_handler(qpti); |
| 1176 | |
| 1177 | if (dq != NULL) { |
| 1178 | do { |
| 1179 | struct scsi_cmnd *next; |
| 1180 | |
| 1181 | next = (struct scsi_cmnd *) dq->host_scribble; |
| 1182 | dq->scsi_done(dq); |
| 1183 | dq = next; |
| 1184 | } while (dq != NULL); |
| 1185 | } |
| 1186 | spin_unlock_irqrestore(qpti->qhost->host_lock, flags); |
| 1187 | |
| 1188 | return IRQ_HANDLED; |
| 1189 | } |
| 1190 | |
| 1191 | static int qlogicpti_abort(struct scsi_cmnd *Cmnd) |
| 1192 | { |
| 1193 | u_short param[6]; |
| 1194 | struct Scsi_Host *host = Cmnd->device->host; |
| 1195 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; |
| 1196 | int return_status = SUCCESS; |
| 1197 | u32 cmd_cookie; |
| 1198 | int i; |
| 1199 | |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1200 | printk(KERN_WARNING "qlogicpti%d: Aborting cmd for tgt[%d] lun[%d]\n", |
| 1201 | qpti->qpti_id, (int)Cmnd->device->id, (int)Cmnd->device->lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | |
| 1203 | qlogicpti_disable_irqs(qpti); |
| 1204 | |
| 1205 | /* Find the 32-bit cookie we gave to the firmware for |
| 1206 | * this command. |
| 1207 | */ |
| 1208 | for (i = 0; i < QLOGICPTI_REQ_QUEUE_LEN + 1; i++) |
| 1209 | if (qpti->cmd_slots[i] == Cmnd) |
| 1210 | break; |
| 1211 | cmd_cookie = i; |
| 1212 | |
| 1213 | param[0] = MBOX_ABORT; |
| 1214 | param[1] = (((u_short) Cmnd->device->id) << 8) | Cmnd->device->lun; |
| 1215 | param[2] = cmd_cookie >> 16; |
| 1216 | param[3] = cmd_cookie & 0xffff; |
| 1217 | if (qlogicpti_mbox_command(qpti, param, 0) || |
| 1218 | (param[0] != MBOX_COMMAND_COMPLETE)) { |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1219 | printk(KERN_EMERG "qlogicpti%d: scsi abort failure: %x\n", |
| 1220 | qpti->qpti_id, param[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | return_status = FAILED; |
| 1222 | } |
| 1223 | |
| 1224 | qlogicpti_enable_irqs(qpti); |
| 1225 | |
| 1226 | return return_status; |
| 1227 | } |
| 1228 | |
| 1229 | static int qlogicpti_reset(struct scsi_cmnd *Cmnd) |
| 1230 | { |
| 1231 | u_short param[6]; |
| 1232 | struct Scsi_Host *host = Cmnd->device->host; |
| 1233 | struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata; |
| 1234 | int return_status = SUCCESS; |
| 1235 | |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1236 | printk(KERN_WARNING "qlogicpti%d: Resetting SCSI bus!\n", |
| 1237 | qpti->qpti_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | |
| 1239 | qlogicpti_disable_irqs(qpti); |
| 1240 | |
| 1241 | param[0] = MBOX_BUS_RESET; |
| 1242 | param[1] = qpti->host_param.bus_reset_delay; |
| 1243 | if (qlogicpti_mbox_command(qpti, param, 0) || |
| 1244 | (param[0] != MBOX_COMMAND_COMPLETE)) { |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1245 | printk(KERN_EMERG "qlogicisp%d: scsi bus reset failure: %x\n", |
| 1246 | qpti->qpti_id, param[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1247 | return_status = FAILED; |
| 1248 | } |
| 1249 | |
| 1250 | qlogicpti_enable_irqs(qpti); |
| 1251 | |
| 1252 | return return_status; |
| 1253 | } |
| 1254 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1255 | static struct scsi_host_template qpti_template = { |
| 1256 | .module = THIS_MODULE, |
| 1257 | .name = "qlogicpti", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | .info = qlogicpti_info, |
Matthew Wilcox | 9ec76fb | 2007-10-01 08:07:52 -0600 | [diff] [blame] | 1259 | .queuecommand = qlogicpti_queuecommand, |
| 1260 | .slave_configure = qlogicpti_slave_configure, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1261 | .eh_abort_handler = qlogicpti_abort, |
| 1262 | .eh_bus_reset_handler = qlogicpti_reset, |
| 1263 | .can_queue = QLOGICPTI_REQ_QUEUE_LEN, |
| 1264 | .this_id = 7, |
| 1265 | .sg_tablesize = QLOGICPTI_MAX_SG(QLOGICPTI_REQ_QUEUE_LEN), |
| 1266 | .cmd_per_lun = 1, |
| 1267 | .use_clustering = ENABLE_CLUSTERING, |
| 1268 | }; |
| 1269 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1270 | static int __devinit qpti_sbus_probe(struct of_device *dev, const struct of_device_id *match) |
| 1271 | { |
| 1272 | static int nqptis; |
| 1273 | struct sbus_dev *sdev = to_sbus_device(&dev->dev); |
| 1274 | struct device_node *dp = dev->node; |
| 1275 | struct scsi_host_template *tpnt = match->data; |
| 1276 | struct Scsi_Host *host; |
| 1277 | struct qlogicpti *qpti; |
Stephen Rothwell | ccf0dec | 2007-03-29 00:49:54 -0700 | [diff] [blame] | 1278 | const char *fcode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1280 | /* Sometimes Antares cards come up not completely |
| 1281 | * setup, and we get a report of a zero IRQ. |
| 1282 | */ |
| 1283 | if (sdev->irqs[0] == 0) |
| 1284 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1286 | host = scsi_host_alloc(tpnt, sizeof(struct qlogicpti)); |
| 1287 | if (!host) |
| 1288 | return -ENOMEM; |
| 1289 | |
| 1290 | qpti = (struct qlogicpti *) host->hostdata; |
| 1291 | |
| 1292 | host->max_id = MAX_TARGETS; |
| 1293 | qpti->qhost = host; |
| 1294 | qpti->sdev = sdev; |
| 1295 | qpti->qpti_id = nqptis; |
| 1296 | qpti->prom_node = sdev->prom_node; |
| 1297 | strcpy(qpti->prom_name, sdev->ofdev.node->name); |
| 1298 | qpti->is_pti = strcmp(qpti->prom_name, "QLGC,isp"); |
| 1299 | |
| 1300 | if (qpti_map_regs(qpti) < 0) |
| 1301 | goto fail_unlink; |
| 1302 | |
| 1303 | if (qpti_register_irq(qpti) < 0) |
| 1304 | goto fail_unmap_regs; |
| 1305 | |
| 1306 | qpti_get_scsi_id(qpti); |
| 1307 | qpti_get_bursts(qpti); |
| 1308 | qpti_get_clock(qpti); |
| 1309 | |
| 1310 | /* Clear out scsi_cmnd array. */ |
| 1311 | memset(qpti->cmd_slots, 0, sizeof(qpti->cmd_slots)); |
| 1312 | |
| 1313 | if (qpti_map_queues(qpti) < 0) |
| 1314 | goto fail_free_irq; |
| 1315 | |
| 1316 | /* Load the firmware. */ |
| 1317 | if (qlogicpti_load_firmware(qpti)) |
| 1318 | goto fail_unmap_queues; |
| 1319 | if (qpti->is_pti) { |
| 1320 | /* Check the PTI status reg. */ |
| 1321 | if (qlogicpti_verify_tmon(qpti)) |
| 1322 | goto fail_unmap_queues; |
| 1323 | } |
| 1324 | |
| 1325 | /* Reset the ISP and init res/req queues. */ |
| 1326 | if (qlogicpti_reset_hardware(host)) |
| 1327 | goto fail_unmap_queues; |
| 1328 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1329 | printk("(Firmware v%d.%d.%d)", qpti->fware_majrev, |
| 1330 | qpti->fware_minrev, qpti->fware_micrev); |
| 1331 | |
| 1332 | fcode = of_get_property(dp, "isp-fcode", NULL); |
| 1333 | if (fcode && fcode[0]) |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1334 | printk("(FCode %s)", fcode); |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1335 | if (of_find_property(dp, "differential", NULL) != NULL) |
| 1336 | qpti->differential = 1; |
| 1337 | |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1338 | printk("\nqlogicpti%d: [%s Wide, using %s interface]\n", |
| 1339 | qpti->qpti_id, |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1340 | (qpti->ultra ? "Ultra" : "Fast"), |
| 1341 | (qpti->differential ? "differential" : "single ended")); |
| 1342 | |
Mark Fortescue | 585a8a5 | 2007-07-31 20:10:45 +0100 | [diff] [blame] | 1343 | if (scsi_add_host(host, &dev->dev)) { |
| 1344 | printk("qlogicpti%d: Failed scsi_add_host\n", qpti->qpti_id); |
| 1345 | goto fail_unmap_queues; |
| 1346 | } |
| 1347 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1348 | dev_set_drvdata(&sdev->ofdev.dev, qpti); |
| 1349 | |
| 1350 | qpti_chain_add(qpti); |
| 1351 | |
| 1352 | scsi_scan_host(host); |
| 1353 | nqptis++; |
| 1354 | |
| 1355 | return 0; |
| 1356 | |
| 1357 | fail_unmap_queues: |
| 1358 | #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) |
| 1359 | sbus_free_consistent(qpti->sdev, |
| 1360 | QSIZE(RES_QUEUE_LEN), |
| 1361 | qpti->res_cpu, qpti->res_dvma); |
| 1362 | sbus_free_consistent(qpti->sdev, |
| 1363 | QSIZE(QLOGICPTI_REQ_QUEUE_LEN), |
| 1364 | qpti->req_cpu, qpti->req_dvma); |
| 1365 | #undef QSIZE |
| 1366 | |
| 1367 | fail_unmap_regs: |
| 1368 | sbus_iounmap(qpti->qregs, |
| 1369 | qpti->sdev->reg_addrs[0].reg_size); |
| 1370 | if (qpti->is_pti) |
| 1371 | sbus_iounmap(qpti->sreg, sizeof(unsigned char)); |
| 1372 | |
| 1373 | fail_free_irq: |
| 1374 | free_irq(qpti->irq, qpti); |
| 1375 | |
| 1376 | fail_unlink: |
| 1377 | scsi_host_put(host); |
| 1378 | |
| 1379 | return -ENODEV; |
| 1380 | } |
| 1381 | |
| 1382 | static int __devexit qpti_sbus_remove(struct of_device *dev) |
| 1383 | { |
| 1384 | struct qlogicpti *qpti = dev_get_drvdata(&dev->dev); |
| 1385 | |
| 1386 | qpti_chain_del(qpti); |
| 1387 | |
| 1388 | scsi_remove_host(qpti->qhost); |
| 1389 | |
| 1390 | /* Shut up the card. */ |
| 1391 | sbus_writew(0, qpti->qregs + SBUS_CTRL); |
| 1392 | |
| 1393 | /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */ |
| 1394 | free_irq(qpti->irq, qpti); |
| 1395 | |
| 1396 | #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) |
| 1397 | sbus_free_consistent(qpti->sdev, |
| 1398 | QSIZE(RES_QUEUE_LEN), |
| 1399 | qpti->res_cpu, qpti->res_dvma); |
| 1400 | sbus_free_consistent(qpti->sdev, |
| 1401 | QSIZE(QLOGICPTI_REQ_QUEUE_LEN), |
| 1402 | qpti->req_cpu, qpti->req_dvma); |
| 1403 | #undef QSIZE |
| 1404 | |
| 1405 | sbus_iounmap(qpti->qregs, qpti->sdev->reg_addrs[0].reg_size); |
| 1406 | if (qpti->is_pti) |
| 1407 | sbus_iounmap(qpti->sreg, sizeof(unsigned char)); |
| 1408 | |
| 1409 | scsi_host_put(qpti->qhost); |
| 1410 | |
| 1411 | return 0; |
| 1412 | } |
| 1413 | |
| 1414 | static struct of_device_id qpti_match[] = { |
| 1415 | { |
| 1416 | .name = "ptisp", |
| 1417 | .data = &qpti_template, |
| 1418 | }, |
| 1419 | { |
| 1420 | .name = "PTI,ptisp", |
| 1421 | .data = &qpti_template, |
| 1422 | }, |
| 1423 | { |
| 1424 | .name = "QLGC,isp", |
| 1425 | .data = &qpti_template, |
| 1426 | }, |
| 1427 | { |
| 1428 | .name = "SUNW,isp", |
| 1429 | .data = &qpti_template, |
| 1430 | }, |
| 1431 | {}, |
| 1432 | }; |
| 1433 | MODULE_DEVICE_TABLE(of, qpti_match); |
| 1434 | |
| 1435 | static struct of_platform_driver qpti_sbus_driver = { |
| 1436 | .name = "qpti", |
| 1437 | .match_table = qpti_match, |
| 1438 | .probe = qpti_sbus_probe, |
| 1439 | .remove = __devexit_p(qpti_sbus_remove), |
| 1440 | }; |
| 1441 | |
| 1442 | static int __init qpti_init(void) |
| 1443 | { |
| 1444 | return of_register_driver(&qpti_sbus_driver, &sbus_bus_type); |
| 1445 | } |
| 1446 | |
| 1447 | static void __exit qpti_exit(void) |
| 1448 | { |
| 1449 | of_unregister_driver(&qpti_sbus_driver); |
| 1450 | } |
| 1451 | |
| 1452 | MODULE_DESCRIPTION("QlogicISP SBUS driver"); |
| 1453 | MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | MODULE_LICENSE("GPL"); |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1455 | MODULE_VERSION("2.0"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | |
David S. Miller | 3d4253d9 | 2006-06-23 22:00:34 -0700 | [diff] [blame] | 1457 | module_init(qpti_init); |
| 1458 | module_exit(qpti_exit); |