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0010 #include <linux/module.h>
0011 #include <linux/types.h>
0012 #include <linux/string.h>
0013 #include <linux/kernel.h>
0014 #include <linux/pci.h>
0015 #include <linux/interrupt.h>
0016 #include <linux/errno.h>
0017 #include <linux/delay.h>
0018 #include <linux/timer.h>
0019 #include <linux/spinlock.h>
0020 #include <linux/gfp.h>
0021 #include <linux/uaccess.h>
0022 #include <asm/io.h>
0023 #include <asm/div64.h>
0024 #include <scsi/scsi_cmnd.h>
0025 #include <scsi/scsi_device.h>
0026 #include <scsi/scsi.h>
0027 #include <scsi/scsi_tcq.h>
0028 #include <scsi/scsi_host.h>
0029
0030 #include "hptiop.h"
0031
0032 MODULE_AUTHOR("HighPoint Technologies, Inc.");
0033 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
0034
0035 static char driver_name[] = "hptiop";
0036 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
0037 static const char driver_ver[] = "v1.10.0";
0038
0039 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
0040 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
0041 struct hpt_iop_request_scsi_command *req);
0042 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
0043 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
0044 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
0045
0046 static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec)
0047 {
0048 u32 req = 0;
0049 int i;
0050
0051 for (i = 0; i < millisec; i++) {
0052 req = readl(&hba->u.itl.iop->inbound_queue);
0053 if (req != IOPMU_QUEUE_EMPTY)
0054 break;
0055 msleep(1);
0056 }
0057
0058 if (req != IOPMU_QUEUE_EMPTY) {
0059 writel(req, &hba->u.itl.iop->outbound_queue);
0060 readl(&hba->u.itl.iop->outbound_intstatus);
0061 return 0;
0062 }
0063
0064 return -1;
0065 }
0066
0067 static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec)
0068 {
0069 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
0070 }
0071
0072 static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec)
0073 {
0074 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
0075 }
0076
0077 static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
0078 {
0079 if (tag & IOPMU_QUEUE_ADDR_HOST_BIT)
0080 hptiop_host_request_callback_itl(hba,
0081 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
0082 else
0083 hptiop_iop_request_callback_itl(hba, tag);
0084 }
0085
0086 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba)
0087 {
0088 u32 req;
0089
0090 while ((req = readl(&hba->u.itl.iop->outbound_queue)) !=
0091 IOPMU_QUEUE_EMPTY) {
0092
0093 if (req & IOPMU_QUEUE_MASK_HOST_BITS)
0094 hptiop_request_callback_itl(hba, req);
0095 else {
0096 struct hpt_iop_request_header __iomem * p;
0097
0098 p = (struct hpt_iop_request_header __iomem *)
0099 ((char __iomem *)hba->u.itl.iop + req);
0100
0101 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
0102 if (readl(&p->context))
0103 hptiop_request_callback_itl(hba, req);
0104 else
0105 writel(1, &p->context);
0106 }
0107 else
0108 hptiop_request_callback_itl(hba, req);
0109 }
0110 }
0111 }
0112
0113 static int iop_intr_itl(struct hptiop_hba *hba)
0114 {
0115 struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop;
0116 void __iomem *plx = hba->u.itl.plx;
0117 u32 status;
0118 int ret = 0;
0119
0120 if (plx && readl(plx + 0x11C5C) & 0xf)
0121 writel(1, plx + 0x11C60);
0122
0123 status = readl(&iop->outbound_intstatus);
0124
0125 if (status & IOPMU_OUTBOUND_INT_MSG0) {
0126 u32 msg = readl(&iop->outbound_msgaddr0);
0127
0128 dprintk("received outbound msg %x\n", msg);
0129 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
0130 hptiop_message_callback(hba, msg);
0131 ret = 1;
0132 }
0133
0134 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
0135 hptiop_drain_outbound_queue_itl(hba);
0136 ret = 1;
0137 }
0138
0139 return ret;
0140 }
0141
0142 static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu)
0143 {
0144 u32 outbound_tail = readl(&mu->outbound_tail);
0145 u32 outbound_head = readl(&mu->outbound_head);
0146
0147 if (outbound_tail != outbound_head) {
0148 u64 p;
0149
0150 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8);
0151 outbound_tail++;
0152
0153 if (outbound_tail == MVIOP_QUEUE_LEN)
0154 outbound_tail = 0;
0155 writel(outbound_tail, &mu->outbound_tail);
0156 return p;
0157 } else
0158 return 0;
0159 }
0160
0161 static void mv_inbound_write(u64 p, struct hptiop_hba *hba)
0162 {
0163 u32 inbound_head = readl(&hba->u.mv.mu->inbound_head);
0164 u32 head = inbound_head + 1;
0165
0166 if (head == MVIOP_QUEUE_LEN)
0167 head = 0;
0168
0169 memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8);
0170 writel(head, &hba->u.mv.mu->inbound_head);
0171 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE,
0172 &hba->u.mv.regs->inbound_doorbell);
0173 }
0174
0175 static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag)
0176 {
0177 u32 req_type = (tag >> 5) & 0x7;
0178 struct hpt_iop_request_scsi_command *req;
0179
0180 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag);
0181
0182 BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0);
0183
0184 switch (req_type) {
0185 case IOP_REQUEST_TYPE_GET_CONFIG:
0186 case IOP_REQUEST_TYPE_SET_CONFIG:
0187 hba->msg_done = 1;
0188 break;
0189
0190 case IOP_REQUEST_TYPE_SCSI_COMMAND:
0191 req = hba->reqs[tag >> 8].req_virt;
0192 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT))
0193 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
0194
0195 hptiop_finish_scsi_req(hba, tag>>8, req);
0196 break;
0197
0198 default:
0199 break;
0200 }
0201 }
0202
0203 static int iop_intr_mv(struct hptiop_hba *hba)
0204 {
0205 u32 status;
0206 int ret = 0;
0207
0208 status = readl(&hba->u.mv.regs->outbound_doorbell);
0209 writel(~status, &hba->u.mv.regs->outbound_doorbell);
0210
0211 if (status & MVIOP_MU_OUTBOUND_INT_MSG) {
0212 u32 msg;
0213 msg = readl(&hba->u.mv.mu->outbound_msg);
0214 dprintk("received outbound msg %x\n", msg);
0215 hptiop_message_callback(hba, msg);
0216 ret = 1;
0217 }
0218
0219 if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) {
0220 u64 tag;
0221
0222 while ((tag = mv_outbound_read(hba->u.mv.mu)))
0223 hptiop_request_callback_mv(hba, tag);
0224 ret = 1;
0225 }
0226
0227 return ret;
0228 }
0229
0230 static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag)
0231 {
0232 u32 req_type = _tag & 0xf;
0233 struct hpt_iop_request_scsi_command *req;
0234
0235 switch (req_type) {
0236 case IOP_REQUEST_TYPE_GET_CONFIG:
0237 case IOP_REQUEST_TYPE_SET_CONFIG:
0238 hba->msg_done = 1;
0239 break;
0240
0241 case IOP_REQUEST_TYPE_SCSI_COMMAND:
0242 req = hba->reqs[(_tag >> 4) & 0xff].req_virt;
0243 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
0244 req->header.result = IOP_RESULT_SUCCESS;
0245 hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req);
0246 break;
0247
0248 default:
0249 break;
0250 }
0251 }
0252
0253 static int iop_intr_mvfrey(struct hptiop_hba *hba)
0254 {
0255 u32 _tag, status, cptr, cur_rptr;
0256 int ret = 0;
0257
0258 if (hba->initialized)
0259 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
0260
0261 status = readl(&(hba->u.mvfrey.mu->f0_doorbell));
0262 if (status) {
0263 writel(status, &(hba->u.mvfrey.mu->f0_doorbell));
0264 if (status & CPU_TO_F0_DRBL_MSG_BIT) {
0265 u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a));
0266 dprintk("received outbound msg %x\n", msg);
0267 hptiop_message_callback(hba, msg);
0268 }
0269 ret = 1;
0270 }
0271
0272 status = readl(&(hba->u.mvfrey.mu->isr_cause));
0273 if (status) {
0274 writel(status, &(hba->u.mvfrey.mu->isr_cause));
0275 do {
0276 cptr = *hba->u.mvfrey.outlist_cptr & 0xff;
0277 cur_rptr = hba->u.mvfrey.outlist_rptr;
0278 while (cur_rptr != cptr) {
0279 cur_rptr++;
0280 if (cur_rptr == hba->u.mvfrey.list_count)
0281 cur_rptr = 0;
0282
0283 _tag = hba->u.mvfrey.outlist[cur_rptr].val;
0284 BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS));
0285 hptiop_request_callback_mvfrey(hba, _tag);
0286 ret = 1;
0287 }
0288 hba->u.mvfrey.outlist_rptr = cur_rptr;
0289 } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff));
0290 }
0291
0292 if (hba->initialized)
0293 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
0294
0295 return ret;
0296 }
0297
0298 static int iop_send_sync_request_itl(struct hptiop_hba *hba,
0299 void __iomem *_req, u32 millisec)
0300 {
0301 struct hpt_iop_request_header __iomem *req = _req;
0302 u32 i;
0303
0304 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags);
0305 writel(0, &req->context);
0306 writel((unsigned long)req - (unsigned long)hba->u.itl.iop,
0307 &hba->u.itl.iop->inbound_queue);
0308 readl(&hba->u.itl.iop->outbound_intstatus);
0309
0310 for (i = 0; i < millisec; i++) {
0311 iop_intr_itl(hba);
0312 if (readl(&req->context))
0313 return 0;
0314 msleep(1);
0315 }
0316
0317 return -1;
0318 }
0319
0320 static int iop_send_sync_request_mv(struct hptiop_hba *hba,
0321 u32 size_bits, u32 millisec)
0322 {
0323 struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req;
0324 u32 i;
0325
0326 hba->msg_done = 0;
0327 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
0328 mv_inbound_write(hba->u.mv.internal_req_phy |
0329 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba);
0330
0331 for (i = 0; i < millisec; i++) {
0332 iop_intr_mv(hba);
0333 if (hba->msg_done)
0334 return 0;
0335 msleep(1);
0336 }
0337 return -1;
0338 }
0339
0340 static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba,
0341 u32 size_bits, u32 millisec)
0342 {
0343 struct hpt_iop_request_header *reqhdr =
0344 hba->u.mvfrey.internal_req.req_virt;
0345 u32 i;
0346
0347 hba->msg_done = 0;
0348 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
0349 hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req));
0350
0351 for (i = 0; i < millisec; i++) {
0352 iop_intr_mvfrey(hba);
0353 if (hba->msg_done)
0354 break;
0355 msleep(1);
0356 }
0357 return hba->msg_done ? 0 : -1;
0358 }
0359
0360 static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg)
0361 {
0362 writel(msg, &hba->u.itl.iop->inbound_msgaddr0);
0363 readl(&hba->u.itl.iop->outbound_intstatus);
0364 }
0365
0366 static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg)
0367 {
0368 writel(msg, &hba->u.mv.mu->inbound_msg);
0369 writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell);
0370 readl(&hba->u.mv.regs->inbound_doorbell);
0371 }
0372
0373 static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg)
0374 {
0375 writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a));
0376 readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a));
0377 }
0378
0379 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
0380 {
0381 u32 i;
0382
0383 hba->msg_done = 0;
0384 hba->ops->disable_intr(hba);
0385 hba->ops->post_msg(hba, msg);
0386
0387 for (i = 0; i < millisec; i++) {
0388 spin_lock_irq(hba->host->host_lock);
0389 hba->ops->iop_intr(hba);
0390 spin_unlock_irq(hba->host->host_lock);
0391 if (hba->msg_done)
0392 break;
0393 msleep(1);
0394 }
0395
0396 hba->ops->enable_intr(hba);
0397 return hba->msg_done? 0 : -1;
0398 }
0399
0400 static int iop_get_config_itl(struct hptiop_hba *hba,
0401 struct hpt_iop_request_get_config *config)
0402 {
0403 u32 req32;
0404 struct hpt_iop_request_get_config __iomem *req;
0405
0406 req32 = readl(&hba->u.itl.iop->inbound_queue);
0407 if (req32 == IOPMU_QUEUE_EMPTY)
0408 return -1;
0409
0410 req = (struct hpt_iop_request_get_config __iomem *)
0411 ((unsigned long)hba->u.itl.iop + req32);
0412
0413 writel(0, &req->header.flags);
0414 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
0415 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
0416 writel(IOP_RESULT_PENDING, &req->header.result);
0417
0418 if (iop_send_sync_request_itl(hba, req, 20000)) {
0419 dprintk("Get config send cmd failed\n");
0420 return -1;
0421 }
0422
0423 memcpy_fromio(config, req, sizeof(*config));
0424 writel(req32, &hba->u.itl.iop->outbound_queue);
0425 return 0;
0426 }
0427
0428 static int iop_get_config_mv(struct hptiop_hba *hba,
0429 struct hpt_iop_request_get_config *config)
0430 {
0431 struct hpt_iop_request_get_config *req = hba->u.mv.internal_req;
0432
0433 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
0434 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG);
0435 req->header.size =
0436 cpu_to_le32(sizeof(struct hpt_iop_request_get_config));
0437 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
0438 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5);
0439 req->header.context_hi32 = 0;
0440
0441 if (iop_send_sync_request_mv(hba, 0, 20000)) {
0442 dprintk("Get config send cmd failed\n");
0443 return -1;
0444 }
0445
0446 memcpy(config, req, sizeof(struct hpt_iop_request_get_config));
0447 return 0;
0448 }
0449
0450 static int iop_get_config_mvfrey(struct hptiop_hba *hba,
0451 struct hpt_iop_request_get_config *config)
0452 {
0453 struct hpt_iop_request_get_config *info = hba->u.mvfrey.config;
0454
0455 if (info->header.size != sizeof(struct hpt_iop_request_get_config) ||
0456 info->header.type != IOP_REQUEST_TYPE_GET_CONFIG)
0457 return -1;
0458
0459 config->interface_version = info->interface_version;
0460 config->firmware_version = info->firmware_version;
0461 config->max_requests = info->max_requests;
0462 config->request_size = info->request_size;
0463 config->max_sg_count = info->max_sg_count;
0464 config->data_transfer_length = info->data_transfer_length;
0465 config->alignment_mask = info->alignment_mask;
0466 config->max_devices = info->max_devices;
0467 config->sdram_size = info->sdram_size;
0468
0469 return 0;
0470 }
0471
0472 static int iop_set_config_itl(struct hptiop_hba *hba,
0473 struct hpt_iop_request_set_config *config)
0474 {
0475 u32 req32;
0476 struct hpt_iop_request_set_config __iomem *req;
0477
0478 req32 = readl(&hba->u.itl.iop->inbound_queue);
0479 if (req32 == IOPMU_QUEUE_EMPTY)
0480 return -1;
0481
0482 req = (struct hpt_iop_request_set_config __iomem *)
0483 ((unsigned long)hba->u.itl.iop + req32);
0484
0485 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
0486 (u8 *)config + sizeof(struct hpt_iop_request_header),
0487 sizeof(struct hpt_iop_request_set_config) -
0488 sizeof(struct hpt_iop_request_header));
0489
0490 writel(0, &req->header.flags);
0491 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type);
0492 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
0493 writel(IOP_RESULT_PENDING, &req->header.result);
0494
0495 if (iop_send_sync_request_itl(hba, req, 20000)) {
0496 dprintk("Set config send cmd failed\n");
0497 return -1;
0498 }
0499
0500 writel(req32, &hba->u.itl.iop->outbound_queue);
0501 return 0;
0502 }
0503
0504 static int iop_set_config_mv(struct hptiop_hba *hba,
0505 struct hpt_iop_request_set_config *config)
0506 {
0507 struct hpt_iop_request_set_config *req = hba->u.mv.internal_req;
0508
0509 memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
0510 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
0511 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
0512 req->header.size =
0513 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
0514 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
0515 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
0516 req->header.context_hi32 = 0;
0517
0518 if (iop_send_sync_request_mv(hba, 0, 20000)) {
0519 dprintk("Set config send cmd failed\n");
0520 return -1;
0521 }
0522
0523 return 0;
0524 }
0525
0526 static int iop_set_config_mvfrey(struct hptiop_hba *hba,
0527 struct hpt_iop_request_set_config *config)
0528 {
0529 struct hpt_iop_request_set_config *req =
0530 hba->u.mvfrey.internal_req.req_virt;
0531
0532 memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
0533 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
0534 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
0535 req->header.size =
0536 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
0537 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
0538 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
0539 req->header.context_hi32 = 0;
0540
0541 if (iop_send_sync_request_mvfrey(hba, 0, 20000)) {
0542 dprintk("Set config send cmd failed\n");
0543 return -1;
0544 }
0545
0546 return 0;
0547 }
0548
0549 static void hptiop_enable_intr_itl(struct hptiop_hba *hba)
0550 {
0551 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
0552 &hba->u.itl.iop->outbound_intmask);
0553 }
0554
0555 static void hptiop_enable_intr_mv(struct hptiop_hba *hba)
0556 {
0557 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG,
0558 &hba->u.mv.regs->outbound_intmask);
0559 }
0560
0561 static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba)
0562 {
0563 writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable));
0564 writel(0x1, &(hba->u.mvfrey.mu->isr_enable));
0565 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
0566 }
0567
0568 static int hptiop_initialize_iop(struct hptiop_hba *hba)
0569 {
0570
0571 hba->ops->enable_intr(hba);
0572
0573 hba->initialized = 1;
0574
0575
0576 if (iop_send_sync_msg(hba,
0577 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
0578 printk(KERN_ERR "scsi%d: fail to start background task\n",
0579 hba->host->host_no);
0580 return -1;
0581 }
0582 return 0;
0583 }
0584
0585 static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
0586 {
0587 u32 mem_base_phy, length;
0588 void __iomem *mem_base_virt;
0589
0590 struct pci_dev *pcidev = hba->pcidev;
0591
0592
0593 if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) {
0594 printk(KERN_ERR "scsi%d: pci resource invalid\n",
0595 hba->host->host_no);
0596 return NULL;
0597 }
0598
0599 mem_base_phy = pci_resource_start(pcidev, index);
0600 length = pci_resource_len(pcidev, index);
0601 mem_base_virt = ioremap(mem_base_phy, length);
0602
0603 if (!mem_base_virt) {
0604 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
0605 hba->host->host_no);
0606 return NULL;
0607 }
0608 return mem_base_virt;
0609 }
0610
0611 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba)
0612 {
0613 struct pci_dev *pcidev = hba->pcidev;
0614 hba->u.itl.iop = hptiop_map_pci_bar(hba, 0);
0615 if (hba->u.itl.iop == NULL)
0616 return -1;
0617 if ((pcidev->device & 0xff00) == 0x4400) {
0618 hba->u.itl.plx = hba->u.itl.iop;
0619 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2);
0620 if (hba->u.itl.iop == NULL) {
0621 iounmap(hba->u.itl.plx);
0622 return -1;
0623 }
0624 }
0625 return 0;
0626 }
0627
0628 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
0629 {
0630 if (hba->u.itl.plx)
0631 iounmap(hba->u.itl.plx);
0632 iounmap(hba->u.itl.iop);
0633 }
0634
0635 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba)
0636 {
0637 hba->u.mv.regs = hptiop_map_pci_bar(hba, 0);
0638 if (hba->u.mv.regs == NULL)
0639 return -1;
0640
0641 hba->u.mv.mu = hptiop_map_pci_bar(hba, 2);
0642 if (hba->u.mv.mu == NULL) {
0643 iounmap(hba->u.mv.regs);
0644 return -1;
0645 }
0646
0647 return 0;
0648 }
0649
0650 static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba)
0651 {
0652 hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0);
0653 if (hba->u.mvfrey.config == NULL)
0654 return -1;
0655
0656 hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2);
0657 if (hba->u.mvfrey.mu == NULL) {
0658 iounmap(hba->u.mvfrey.config);
0659 return -1;
0660 }
0661
0662 return 0;
0663 }
0664
0665 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba)
0666 {
0667 iounmap(hba->u.mv.regs);
0668 iounmap(hba->u.mv.mu);
0669 }
0670
0671 static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba)
0672 {
0673 iounmap(hba->u.mvfrey.config);
0674 iounmap(hba->u.mvfrey.mu);
0675 }
0676
0677 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
0678 {
0679 dprintk("iop message 0x%x\n", msg);
0680
0681 if (msg == IOPMU_INBOUND_MSG0_NOP ||
0682 msg == IOPMU_INBOUND_MSG0_RESET_COMM)
0683 hba->msg_done = 1;
0684
0685 if (!hba->initialized)
0686 return;
0687
0688 if (msg == IOPMU_INBOUND_MSG0_RESET) {
0689 atomic_set(&hba->resetting, 0);
0690 wake_up(&hba->reset_wq);
0691 }
0692 else if (msg <= IOPMU_INBOUND_MSG0_MAX)
0693 hba->msg_done = 1;
0694 }
0695
0696 static struct hptiop_request *get_req(struct hptiop_hba *hba)
0697 {
0698 struct hptiop_request *ret;
0699
0700 dprintk("get_req : req=%p\n", hba->req_list);
0701
0702 ret = hba->req_list;
0703 if (ret)
0704 hba->req_list = ret->next;
0705
0706 return ret;
0707 }
0708
0709 static void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
0710 {
0711 dprintk("free_req(%d, %p)\n", req->index, req);
0712 req->next = hba->req_list;
0713 hba->req_list = req;
0714 }
0715
0716 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
0717 struct hpt_iop_request_scsi_command *req)
0718 {
0719 struct scsi_cmnd *scp;
0720
0721 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, "
0722 "result=%d, context=0x%x tag=%d\n",
0723 req, req->header.type, req->header.result,
0724 req->header.context, tag);
0725
0726 BUG_ON(!req->header.result);
0727 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND));
0728
0729 scp = hba->reqs[tag].scp;
0730
0731 if (HPT_SCP(scp)->mapped)
0732 scsi_dma_unmap(scp);
0733
0734 switch (le32_to_cpu(req->header.result)) {
0735 case IOP_RESULT_SUCCESS:
0736 scsi_set_resid(scp,
0737 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
0738 scp->result = (DID_OK<<16);
0739 break;
0740 case IOP_RESULT_BAD_TARGET:
0741 scp->result = (DID_BAD_TARGET<<16);
0742 break;
0743 case IOP_RESULT_BUSY:
0744 scp->result = (DID_BUS_BUSY<<16);
0745 break;
0746 case IOP_RESULT_RESET:
0747 scp->result = (DID_RESET<<16);
0748 break;
0749 case IOP_RESULT_FAIL:
0750 scp->result = (DID_ERROR<<16);
0751 break;
0752 case IOP_RESULT_INVALID_REQUEST:
0753 scp->result = (DID_ABORT<<16);
0754 break;
0755 case IOP_RESULT_CHECK_CONDITION:
0756 scsi_set_resid(scp,
0757 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
0758 scp->result = SAM_STAT_CHECK_CONDITION;
0759 memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE);
0760 goto skip_resid;
0761
0762 default:
0763 scp->result = DID_ABORT << 16;
0764 break;
0765 }
0766
0767 scsi_set_resid(scp,
0768 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
0769
0770 skip_resid:
0771 dprintk("scsi_done(%p)\n", scp);
0772 scsi_done(scp);
0773 free_req(hba, &hba->reqs[tag]);
0774 }
0775
0776 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag)
0777 {
0778 struct hpt_iop_request_scsi_command *req;
0779 u32 tag;
0780
0781 if (hba->iopintf_v2) {
0782 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT;
0783 req = hba->reqs[tag].req_virt;
0784 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
0785 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
0786 } else {
0787 tag = _tag;
0788 req = hba->reqs[tag].req_virt;
0789 }
0790
0791 hptiop_finish_scsi_req(hba, tag, req);
0792 }
0793
0794 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
0795 {
0796 struct hpt_iop_request_header __iomem *req;
0797 struct hpt_iop_request_ioctl_command __iomem *p;
0798 struct hpt_ioctl_k *arg;
0799
0800 req = (struct hpt_iop_request_header __iomem *)
0801 ((unsigned long)hba->u.itl.iop + tag);
0802 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
0803 "result=%d, context=0x%x tag=%d\n",
0804 req, readl(&req->type), readl(&req->result),
0805 readl(&req->context), tag);
0806
0807 BUG_ON(!readl(&req->result));
0808 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
0809
0810 p = (struct hpt_iop_request_ioctl_command __iomem *)req;
0811 arg = (struct hpt_ioctl_k *)(unsigned long)
0812 (readl(&req->context) |
0813 ((u64)readl(&req->context_hi32)<<32));
0814
0815 if (readl(&req->result) == IOP_RESULT_SUCCESS) {
0816 arg->result = HPT_IOCTL_RESULT_OK;
0817
0818 if (arg->outbuf_size)
0819 memcpy_fromio(arg->outbuf,
0820 &p->buf[(readl(&p->inbuf_size) + 3)& ~3],
0821 arg->outbuf_size);
0822
0823 if (arg->bytes_returned)
0824 *arg->bytes_returned = arg->outbuf_size;
0825 }
0826 else
0827 arg->result = HPT_IOCTL_RESULT_FAILED;
0828
0829 arg->done(arg);
0830 writel(tag, &hba->u.itl.iop->outbound_queue);
0831 }
0832
0833 static irqreturn_t hptiop_intr(int irq, void *dev_id)
0834 {
0835 struct hptiop_hba *hba = dev_id;
0836 int handled;
0837 unsigned long flags;
0838
0839 spin_lock_irqsave(hba->host->host_lock, flags);
0840 handled = hba->ops->iop_intr(hba);
0841 spin_unlock_irqrestore(hba->host->host_lock, flags);
0842
0843 return handled;
0844 }
0845
0846 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
0847 {
0848 struct Scsi_Host *host = scp->device->host;
0849 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
0850 struct scatterlist *sg;
0851 int idx, nseg;
0852
0853 nseg = scsi_dma_map(scp);
0854 BUG_ON(nseg < 0);
0855 if (!nseg)
0856 return 0;
0857
0858 HPT_SCP(scp)->sgcnt = nseg;
0859 HPT_SCP(scp)->mapped = 1;
0860
0861 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
0862
0863 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) {
0864 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) |
0865 hba->ops->host_phy_flag;
0866 psg[idx].size = cpu_to_le32(sg_dma_len(sg));
0867 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
0868 cpu_to_le32(1) : 0;
0869 }
0870 return HPT_SCP(scp)->sgcnt;
0871 }
0872
0873 static void hptiop_post_req_itl(struct hptiop_hba *hba,
0874 struct hptiop_request *_req)
0875 {
0876 struct hpt_iop_request_header *reqhdr = _req->req_virt;
0877
0878 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
0879 (u32)_req->index);
0880 reqhdr->context_hi32 = 0;
0881
0882 if (hba->iopintf_v2) {
0883 u32 size, size_bits;
0884
0885 size = le32_to_cpu(reqhdr->size);
0886 if (size < 256)
0887 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
0888 else if (size < 512)
0889 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
0890 else
0891 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
0892 IOPMU_QUEUE_ADDR_HOST_BIT;
0893 writel(_req->req_shifted_phy | size_bits,
0894 &hba->u.itl.iop->inbound_queue);
0895 } else
0896 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
0897 &hba->u.itl.iop->inbound_queue);
0898 }
0899
0900 static void hptiop_post_req_mv(struct hptiop_hba *hba,
0901 struct hptiop_request *_req)
0902 {
0903 struct hpt_iop_request_header *reqhdr = _req->req_virt;
0904 u32 size, size_bit;
0905
0906 reqhdr->context = cpu_to_le32(_req->index<<8 |
0907 IOP_REQUEST_TYPE_SCSI_COMMAND<<5);
0908 reqhdr->context_hi32 = 0;
0909 size = le32_to_cpu(reqhdr->size);
0910
0911 if (size <= 256)
0912 size_bit = 0;
0913 else if (size <= 256*2)
0914 size_bit = 1;
0915 else if (size <= 256*3)
0916 size_bit = 2;
0917 else
0918 size_bit = 3;
0919
0920 mv_inbound_write((_req->req_shifted_phy << 5) |
0921 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba);
0922 }
0923
0924 static void hptiop_post_req_mvfrey(struct hptiop_hba *hba,
0925 struct hptiop_request *_req)
0926 {
0927 struct hpt_iop_request_header *reqhdr = _req->req_virt;
0928 u32 index;
0929
0930 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT |
0931 IOP_REQUEST_FLAG_ADDR_BITS |
0932 ((_req->req_shifted_phy >> 11) & 0xffff0000));
0933 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
0934 (_req->index << 4) | reqhdr->type);
0935 reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) &
0936 0xffffffff);
0937
0938 hba->u.mvfrey.inlist_wptr++;
0939 index = hba->u.mvfrey.inlist_wptr & 0x3fff;
0940
0941 if (index == hba->u.mvfrey.list_count) {
0942 index = 0;
0943 hba->u.mvfrey.inlist_wptr &= ~0x3fff;
0944 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE;
0945 }
0946
0947 hba->u.mvfrey.inlist[index].addr =
0948 (dma_addr_t)_req->req_shifted_phy << 5;
0949 hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4;
0950 writel(hba->u.mvfrey.inlist_wptr,
0951 &(hba->u.mvfrey.mu->inbound_write_ptr));
0952 readl(&(hba->u.mvfrey.mu->inbound_write_ptr));
0953 }
0954
0955 static int hptiop_reset_comm_itl(struct hptiop_hba *hba)
0956 {
0957 return 0;
0958 }
0959
0960 static int hptiop_reset_comm_mv(struct hptiop_hba *hba)
0961 {
0962 return 0;
0963 }
0964
0965 static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba)
0966 {
0967 u32 list_count = hba->u.mvfrey.list_count;
0968
0969 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000))
0970 return -1;
0971
0972
0973 msleep(100);
0974
0975 writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff),
0976 &(hba->u.mvfrey.mu->inbound_base));
0977 writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16),
0978 &(hba->u.mvfrey.mu->inbound_base_high));
0979
0980 writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff),
0981 &(hba->u.mvfrey.mu->outbound_base));
0982 writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16),
0983 &(hba->u.mvfrey.mu->outbound_base_high));
0984
0985 writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff),
0986 &(hba->u.mvfrey.mu->outbound_shadow_base));
0987 writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16),
0988 &(hba->u.mvfrey.mu->outbound_shadow_base_high));
0989
0990 hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE;
0991 *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE;
0992 hba->u.mvfrey.outlist_rptr = list_count - 1;
0993 return 0;
0994 }
0995
0996 static int hptiop_queuecommand_lck(struct scsi_cmnd *scp)
0997 {
0998 struct Scsi_Host *host = scp->device->host;
0999 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1000 struct hpt_iop_request_scsi_command *req;
1001 int sg_count = 0;
1002 struct hptiop_request *_req;
1003
1004 _req = get_req(hba);
1005 if (_req == NULL) {
1006 dprintk("hptiop_queuecmd : no free req\n");
1007 return SCSI_MLQUEUE_HOST_BUSY;
1008 }
1009
1010 _req->scp = scp;
1011
1012 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) "
1013 "req_index=%d, req=%p\n",
1014 scp,
1015 host->host_no, scp->device->channel,
1016 scp->device->id, scp->device->lun,
1017 cpu_to_be32(((u32 *)scp->cmnd)[0]),
1018 cpu_to_be32(((u32 *)scp->cmnd)[1]),
1019 cpu_to_be32(((u32 *)scp->cmnd)[2]),
1020 cpu_to_be32(((u32 *)scp->cmnd)[3]),
1021 _req->index, _req->req_virt);
1022
1023 scp->result = 0;
1024
1025 if (scp->device->channel ||
1026 (scp->device->id > hba->max_devices) ||
1027 ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
1028 scp->result = DID_BAD_TARGET << 16;
1029 free_req(hba, _req);
1030 goto cmd_done;
1031 }
1032
1033 req = _req->req_virt;
1034
1035
1036 sg_count = hptiop_buildsgl(scp, req->sg_list);
1037 if (!sg_count)
1038 HPT_SCP(scp)->mapped = 0;
1039
1040 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
1041 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
1042 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
1043 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
1044 req->channel = scp->device->channel;
1045 req->target = scp->device->id;
1046 req->lun = scp->device->lun;
1047 req->header.size = cpu_to_le32(
1048 sizeof(struct hpt_iop_request_scsi_command)
1049 - sizeof(struct hpt_iopsg)
1050 + sg_count * sizeof(struct hpt_iopsg));
1051
1052 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
1053 hba->ops->post_req(hba, _req);
1054 return 0;
1055
1056 cmd_done:
1057 dprintk("scsi_done(scp=%p)\n", scp);
1058 scsi_done(scp);
1059 return 0;
1060 }
1061
1062 static DEF_SCSI_QCMD(hptiop_queuecommand)
1063
1064 static const char *hptiop_info(struct Scsi_Host *host)
1065 {
1066 return driver_name_long;
1067 }
1068
1069 static int hptiop_reset_hba(struct hptiop_hba *hba)
1070 {
1071 if (atomic_xchg(&hba->resetting, 1) == 0) {
1072 atomic_inc(&hba->reset_count);
1073 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
1074 }
1075
1076 wait_event_timeout(hba->reset_wq,
1077 atomic_read(&hba->resetting) == 0, 60 * HZ);
1078
1079 if (atomic_read(&hba->resetting)) {
1080
1081 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
1082 return -1;
1083 }
1084
1085 if (iop_send_sync_msg(hba,
1086 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
1087 dprintk("scsi%d: fail to start background task\n",
1088 hba->host->host_no);
1089 }
1090
1091 return 0;
1092 }
1093
1094 static int hptiop_reset(struct scsi_cmnd *scp)
1095 {
1096 struct hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata;
1097
1098 printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n",
1099 scp->device->host->host_no, -1, -1);
1100
1101 return hptiop_reset_hba(hba)? FAILED : SUCCESS;
1102 }
1103
1104 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
1105 int queue_depth)
1106 {
1107 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
1108
1109 if (queue_depth > hba->max_requests)
1110 queue_depth = hba->max_requests;
1111 return scsi_change_queue_depth(sdev, queue_depth);
1112 }
1113
1114 static ssize_t hptiop_show_version(struct device *dev,
1115 struct device_attribute *attr, char *buf)
1116 {
1117 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
1118 }
1119
1120 static ssize_t hptiop_show_fw_version(struct device *dev,
1121 struct device_attribute *attr, char *buf)
1122 {
1123 struct Scsi_Host *host = class_to_shost(dev);
1124 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1125
1126 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
1127 hba->firmware_version >> 24,
1128 (hba->firmware_version >> 16) & 0xff,
1129 (hba->firmware_version >> 8) & 0xff,
1130 hba->firmware_version & 0xff);
1131 }
1132
1133 static struct device_attribute hptiop_attr_version = {
1134 .attr = {
1135 .name = "driver-version",
1136 .mode = S_IRUGO,
1137 },
1138 .show = hptiop_show_version,
1139 };
1140
1141 static struct device_attribute hptiop_attr_fw_version = {
1142 .attr = {
1143 .name = "firmware-version",
1144 .mode = S_IRUGO,
1145 },
1146 .show = hptiop_show_fw_version,
1147 };
1148
1149 static struct attribute *hptiop_host_attrs[] = {
1150 &hptiop_attr_version.attr,
1151 &hptiop_attr_fw_version.attr,
1152 NULL
1153 };
1154
1155 ATTRIBUTE_GROUPS(hptiop_host);
1156
1157 static int hptiop_slave_config(struct scsi_device *sdev)
1158 {
1159 if (sdev->type == TYPE_TAPE)
1160 blk_queue_max_hw_sectors(sdev->request_queue, 8192);
1161
1162 return 0;
1163 }
1164
1165 static struct scsi_host_template driver_template = {
1166 .module = THIS_MODULE,
1167 .name = driver_name,
1168 .queuecommand = hptiop_queuecommand,
1169 .eh_host_reset_handler = hptiop_reset,
1170 .info = hptiop_info,
1171 .emulated = 0,
1172 .proc_name = driver_name,
1173 .shost_groups = hptiop_host_groups,
1174 .slave_configure = hptiop_slave_config,
1175 .this_id = -1,
1176 .change_queue_depth = hptiop_adjust_disk_queue_depth,
1177 .cmd_size = sizeof(struct hpt_cmd_priv),
1178 };
1179
1180 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba)
1181 {
1182 return 0;
1183 }
1184
1185 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
1186 {
1187 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
1188 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
1189 if (hba->u.mv.internal_req)
1190 return 0;
1191 else
1192 return -1;
1193 }
1194
1195 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba)
1196 {
1197 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl);
1198 char *p;
1199 dma_addr_t phy;
1200
1201 BUG_ON(hba->max_request_size == 0);
1202
1203 if (list_count == 0) {
1204 BUG_ON(1);
1205 return -1;
1206 }
1207
1208 list_count >>= 16;
1209
1210 hba->u.mvfrey.list_count = list_count;
1211 hba->u.mvfrey.internal_mem_size = 0x800 +
1212 list_count * sizeof(struct mvfrey_inlist_entry) +
1213 list_count * sizeof(struct mvfrey_outlist_entry) +
1214 sizeof(int);
1215
1216 p = dma_alloc_coherent(&hba->pcidev->dev,
1217 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL);
1218 if (!p)
1219 return -1;
1220
1221 hba->u.mvfrey.internal_req.req_virt = p;
1222 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5;
1223 hba->u.mvfrey.internal_req.scp = NULL;
1224 hba->u.mvfrey.internal_req.next = NULL;
1225
1226 p += 0x800;
1227 phy += 0x800;
1228
1229 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p;
1230 hba->u.mvfrey.inlist_phy = phy;
1231
1232 p += list_count * sizeof(struct mvfrey_inlist_entry);
1233 phy += list_count * sizeof(struct mvfrey_inlist_entry);
1234
1235 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p;
1236 hba->u.mvfrey.outlist_phy = phy;
1237
1238 p += list_count * sizeof(struct mvfrey_outlist_entry);
1239 phy += list_count * sizeof(struct mvfrey_outlist_entry);
1240
1241 hba->u.mvfrey.outlist_cptr = (__le32 *)p;
1242 hba->u.mvfrey.outlist_cptr_phy = phy;
1243
1244 return 0;
1245 }
1246
1247 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba)
1248 {
1249 return 0;
1250 }
1251
1252 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
1253 {
1254 if (hba->u.mv.internal_req) {
1255 dma_free_coherent(&hba->pcidev->dev, 0x800,
1256 hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
1257 return 0;
1258 } else
1259 return -1;
1260 }
1261
1262 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba)
1263 {
1264 if (hba->u.mvfrey.internal_req.req_virt) {
1265 dma_free_coherent(&hba->pcidev->dev,
1266 hba->u.mvfrey.internal_mem_size,
1267 hba->u.mvfrey.internal_req.req_virt,
1268 (dma_addr_t)
1269 hba->u.mvfrey.internal_req.req_shifted_phy << 5);
1270 return 0;
1271 } else
1272 return -1;
1273 }
1274
1275 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
1276 {
1277 struct Scsi_Host *host = NULL;
1278 struct hptiop_hba *hba;
1279 struct hptiop_adapter_ops *iop_ops;
1280 struct hpt_iop_request_get_config iop_config;
1281 struct hpt_iop_request_set_config set_config;
1282 dma_addr_t start_phy;
1283 void *start_virt;
1284 u32 offset, i, req_size;
1285 int rc;
1286
1287 dprintk("hptiop_probe(%p)\n", pcidev);
1288
1289 if (pci_enable_device(pcidev)) {
1290 printk(KERN_ERR "hptiop: fail to enable pci device\n");
1291 return -ENODEV;
1292 }
1293
1294 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
1295 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
1296 pcidev->irq);
1297
1298 pci_set_master(pcidev);
1299
1300
1301 iop_ops = (struct hptiop_adapter_ops *)id->driver_data;
1302 rc = dma_set_mask(&pcidev->dev,
1303 DMA_BIT_MASK(iop_ops->hw_dma_bit_mask));
1304 if (rc)
1305 rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32));
1306
1307 if (rc) {
1308 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
1309 goto disable_pci_device;
1310 }
1311
1312 if (pci_request_regions(pcidev, driver_name)) {
1313 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
1314 goto disable_pci_device;
1315 }
1316
1317 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
1318 if (!host) {
1319 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
1320 goto free_pci_regions;
1321 }
1322
1323 hba = (struct hptiop_hba *)host->hostdata;
1324 memset(hba, 0, sizeof(struct hptiop_hba));
1325
1326 hba->ops = iop_ops;
1327 hba->pcidev = pcidev;
1328 hba->host = host;
1329 hba->initialized = 0;
1330 hba->iopintf_v2 = 0;
1331
1332 atomic_set(&hba->resetting, 0);
1333 atomic_set(&hba->reset_count, 0);
1334
1335 init_waitqueue_head(&hba->reset_wq);
1336 init_waitqueue_head(&hba->ioctl_wq);
1337
1338 host->max_lun = 128;
1339 host->max_channel = 0;
1340 host->io_port = 0;
1341 host->n_io_port = 0;
1342 host->irq = pcidev->irq;
1343
1344 if (hba->ops->map_pci_bar(hba))
1345 goto free_scsi_host;
1346
1347 if (hba->ops->iop_wait_ready(hba, 20000)) {
1348 printk(KERN_ERR "scsi%d: firmware not ready\n",
1349 hba->host->host_no);
1350 goto unmap_pci_bar;
1351 }
1352
1353 if (hba->ops->family == MV_BASED_IOP) {
1354 if (hba->ops->internal_memalloc(hba)) {
1355 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1356 hba->host->host_no);
1357 goto unmap_pci_bar;
1358 }
1359 }
1360
1361 if (hba->ops->get_config(hba, &iop_config)) {
1362 printk(KERN_ERR "scsi%d: get config failed\n",
1363 hba->host->host_no);
1364 goto unmap_pci_bar;
1365 }
1366
1367 hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1368 HPTIOP_MAX_REQUESTS);
1369 hba->max_devices = le32_to_cpu(iop_config.max_devices);
1370 hba->max_request_size = le32_to_cpu(iop_config.request_size);
1371 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1372 hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1373 hba->interface_version = le32_to_cpu(iop_config.interface_version);
1374 hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1375
1376 if (hba->ops->family == MVFREY_BASED_IOP) {
1377 if (hba->ops->internal_memalloc(hba)) {
1378 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1379 hba->host->host_no);
1380 goto unmap_pci_bar;
1381 }
1382 if (hba->ops->reset_comm(hba)) {
1383 printk(KERN_ERR "scsi%d: reset comm failed\n",
1384 hba->host->host_no);
1385 goto unmap_pci_bar;
1386 }
1387 }
1388
1389 if (hba->firmware_version > 0x01020000 ||
1390 hba->interface_version > 0x01020000)
1391 hba->iopintf_v2 = 1;
1392
1393 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1394 host->max_id = le32_to_cpu(iop_config.max_devices);
1395 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1396 host->can_queue = le32_to_cpu(iop_config.max_requests);
1397 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1398 host->max_cmd_len = 16;
1399
1400 req_size = sizeof(struct hpt_iop_request_scsi_command)
1401 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
1402 if ((req_size & 0x1f) != 0)
1403 req_size = (req_size + 0x1f) & ~0x1f;
1404
1405 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config));
1406 set_config.iop_id = cpu_to_le32(host->host_no);
1407 set_config.vbus_id = cpu_to_le16(host->host_no);
1408 set_config.max_host_request_size = cpu_to_le16(req_size);
1409
1410 if (hba->ops->set_config(hba, &set_config)) {
1411 printk(KERN_ERR "scsi%d: set config failed\n",
1412 hba->host->host_no);
1413 goto unmap_pci_bar;
1414 }
1415
1416 pci_set_drvdata(pcidev, host);
1417
1418 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
1419 driver_name, hba)) {
1420 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1421 hba->host->host_no, pcidev->irq);
1422 goto unmap_pci_bar;
1423 }
1424
1425
1426
1427 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1428
1429 hba->req_size = req_size;
1430 hba->req_list = NULL;
1431
1432 for (i = 0; i < hba->max_requests; i++) {
1433 start_virt = dma_alloc_coherent(&pcidev->dev,
1434 hba->req_size + 0x20,
1435 &start_phy, GFP_KERNEL);
1436
1437 if (!start_virt) {
1438 printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1439 hba->host->host_no);
1440 goto free_request_mem;
1441 }
1442
1443 hba->dma_coherent[i] = start_virt;
1444 hba->dma_coherent_handle[i] = start_phy;
1445
1446 if ((start_phy & 0x1f) != 0) {
1447 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1448 start_phy += offset;
1449 start_virt += offset;
1450 }
1451
1452 hba->reqs[i].next = NULL;
1453 hba->reqs[i].req_virt = start_virt;
1454 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1455 hba->reqs[i].index = i;
1456 free_req(hba, &hba->reqs[i]);
1457 }
1458
1459
1460 if (hptiop_initialize_iop(hba))
1461 goto free_request_mem;
1462
1463 if (scsi_add_host(host, &pcidev->dev)) {
1464 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1465 hba->host->host_no);
1466 goto free_request_mem;
1467 }
1468
1469 scsi_scan_host(host);
1470
1471 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1472 return 0;
1473
1474 free_request_mem:
1475 for (i = 0; i < hba->max_requests; i++) {
1476 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1477 dma_free_coherent(&hba->pcidev->dev,
1478 hba->req_size + 0x20,
1479 hba->dma_coherent[i],
1480 hba->dma_coherent_handle[i]);
1481 else
1482 break;
1483 }
1484
1485 free_irq(hba->pcidev->irq, hba);
1486
1487 unmap_pci_bar:
1488 hba->ops->internal_memfree(hba);
1489
1490 hba->ops->unmap_pci_bar(hba);
1491
1492 free_scsi_host:
1493 scsi_host_put(host);
1494
1495 free_pci_regions:
1496 pci_release_regions(pcidev);
1497
1498 disable_pci_device:
1499 pci_disable_device(pcidev);
1500
1501 dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0);
1502 return -ENODEV;
1503 }
1504
1505 static void hptiop_shutdown(struct pci_dev *pcidev)
1506 {
1507 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1508 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1509
1510 dprintk("hptiop_shutdown(%p)\n", hba);
1511
1512
1513 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1514 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1515 hba->host->host_no);
1516
1517
1518 hba->ops->disable_intr(hba);
1519 }
1520
1521 static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
1522 {
1523 u32 int_mask;
1524
1525 int_mask = readl(&hba->u.itl.iop->outbound_intmask);
1526 writel(int_mask |
1527 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1528 &hba->u.itl.iop->outbound_intmask);
1529 readl(&hba->u.itl.iop->outbound_intmask);
1530 }
1531
1532 static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
1533 {
1534 writel(0, &hba->u.mv.regs->outbound_intmask);
1535 readl(&hba->u.mv.regs->outbound_intmask);
1536 }
1537
1538 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba)
1539 {
1540 writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable));
1541 readl(&(hba->u.mvfrey.mu->f0_doorbell_enable));
1542 writel(0, &(hba->u.mvfrey.mu->isr_enable));
1543 readl(&(hba->u.mvfrey.mu->isr_enable));
1544 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
1545 readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable));
1546 }
1547
1548 static void hptiop_remove(struct pci_dev *pcidev)
1549 {
1550 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1551 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1552 u32 i;
1553
1554 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1555
1556 scsi_remove_host(host);
1557
1558 hptiop_shutdown(pcidev);
1559
1560 free_irq(hba->pcidev->irq, hba);
1561
1562 for (i = 0; i < hba->max_requests; i++) {
1563 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1564 dma_free_coherent(&hba->pcidev->dev,
1565 hba->req_size + 0x20,
1566 hba->dma_coherent[i],
1567 hba->dma_coherent_handle[i]);
1568 else
1569 break;
1570 }
1571
1572 hba->ops->internal_memfree(hba);
1573
1574 hba->ops->unmap_pci_bar(hba);
1575
1576 pci_release_regions(hba->pcidev);
1577 pci_set_drvdata(hba->pcidev, NULL);
1578 pci_disable_device(hba->pcidev);
1579
1580 scsi_host_put(host);
1581 }
1582
1583 static struct hptiop_adapter_ops hptiop_itl_ops = {
1584 .family = INTEL_BASED_IOP,
1585 .iop_wait_ready = iop_wait_ready_itl,
1586 .internal_memalloc = hptiop_internal_memalloc_itl,
1587 .internal_memfree = hptiop_internal_memfree_itl,
1588 .map_pci_bar = hptiop_map_pci_bar_itl,
1589 .unmap_pci_bar = hptiop_unmap_pci_bar_itl,
1590 .enable_intr = hptiop_enable_intr_itl,
1591 .disable_intr = hptiop_disable_intr_itl,
1592 .get_config = iop_get_config_itl,
1593 .set_config = iop_set_config_itl,
1594 .iop_intr = iop_intr_itl,
1595 .post_msg = hptiop_post_msg_itl,
1596 .post_req = hptiop_post_req_itl,
1597 .hw_dma_bit_mask = 64,
1598 .reset_comm = hptiop_reset_comm_itl,
1599 .host_phy_flag = cpu_to_le64(0),
1600 };
1601
1602 static struct hptiop_adapter_ops hptiop_mv_ops = {
1603 .family = MV_BASED_IOP,
1604 .iop_wait_ready = iop_wait_ready_mv,
1605 .internal_memalloc = hptiop_internal_memalloc_mv,
1606 .internal_memfree = hptiop_internal_memfree_mv,
1607 .map_pci_bar = hptiop_map_pci_bar_mv,
1608 .unmap_pci_bar = hptiop_unmap_pci_bar_mv,
1609 .enable_intr = hptiop_enable_intr_mv,
1610 .disable_intr = hptiop_disable_intr_mv,
1611 .get_config = iop_get_config_mv,
1612 .set_config = iop_set_config_mv,
1613 .iop_intr = iop_intr_mv,
1614 .post_msg = hptiop_post_msg_mv,
1615 .post_req = hptiop_post_req_mv,
1616 .hw_dma_bit_mask = 33,
1617 .reset_comm = hptiop_reset_comm_mv,
1618 .host_phy_flag = cpu_to_le64(0),
1619 };
1620
1621 static struct hptiop_adapter_ops hptiop_mvfrey_ops = {
1622 .family = MVFREY_BASED_IOP,
1623 .iop_wait_ready = iop_wait_ready_mvfrey,
1624 .internal_memalloc = hptiop_internal_memalloc_mvfrey,
1625 .internal_memfree = hptiop_internal_memfree_mvfrey,
1626 .map_pci_bar = hptiop_map_pci_bar_mvfrey,
1627 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey,
1628 .enable_intr = hptiop_enable_intr_mvfrey,
1629 .disable_intr = hptiop_disable_intr_mvfrey,
1630 .get_config = iop_get_config_mvfrey,
1631 .set_config = iop_set_config_mvfrey,
1632 .iop_intr = iop_intr_mvfrey,
1633 .post_msg = hptiop_post_msg_mvfrey,
1634 .post_req = hptiop_post_req_mvfrey,
1635 .hw_dma_bit_mask = 64,
1636 .reset_comm = hptiop_reset_comm_mvfrey,
1637 .host_phy_flag = cpu_to_le64(1),
1638 };
1639
1640 static struct pci_device_id hptiop_id_table[] = {
1641 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
1642 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
1643 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
1644 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
1645 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
1646 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
1647 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
1648 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
1649 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
1650 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
1651 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
1652 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
1653 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
1654 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
1655 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
1656 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
1657 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
1658 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
1659 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
1660 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
1661 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
1662 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
1663 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
1664 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
1665 { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
1666 { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
1667 { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
1668 { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
1669 { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
1670 { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
1671 { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
1672 { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
1673 {},
1674 };
1675
1676 MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1677
1678 static struct pci_driver hptiop_pci_driver = {
1679 .name = driver_name,
1680 .id_table = hptiop_id_table,
1681 .probe = hptiop_probe,
1682 .remove = hptiop_remove,
1683 .shutdown = hptiop_shutdown,
1684 };
1685
1686 static int __init hptiop_module_init(void)
1687 {
1688 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1689 return pci_register_driver(&hptiop_pci_driver);
1690 }
1691
1692 static void __exit hptiop_module_exit(void)
1693 {
1694 pci_unregister_driver(&hptiop_pci_driver);
1695 }
1696
1697
1698 module_init(hptiop_module_init);
1699 module_exit(hptiop_module_exit);
1700
1701 MODULE_LICENSE("GPL");
1702
