| /* |
| * HighPoint RR3xxx controller driver for Linux |
| * Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * Please report bugs/comments/suggestions to linux@highpoint-tech.com |
| * |
| * For more information, visit http://www.highpoint-tech.com |
| */ |
| #include <linux/config.h> |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/string.h> |
| #include <linux/kernel.h> |
| #include <linux/pci.h> |
| #include <linux/interrupt.h> |
| #include <linux/errno.h> |
| #include <linux/delay.h> |
| #include <linux/timer.h> |
| #include <linux/spinlock.h> |
| #include <linux/hdreg.h> |
| #include <asm/uaccess.h> |
| #include <asm/io.h> |
| #include <asm/div64.h> |
| #include <scsi/scsi_cmnd.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_tcq.h> |
| #include <scsi/scsi_host.h> |
| |
| #include "hptiop.h" |
| |
| MODULE_AUTHOR("HighPoint Technologies, Inc."); |
| MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver"); |
| |
| static char driver_name[] = "hptiop"; |
| static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver"; |
| static const char driver_ver[] = "v1.0 (060426)"; |
| |
| static DEFINE_SPINLOCK(hptiop_hba_list_lock); |
| static LIST_HEAD(hptiop_hba_list); |
| static int hptiop_cdev_major = -1; |
| |
| static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag); |
| static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag); |
| static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); |
| |
| static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop) |
| { |
| readl(&iop->outbound_intstatus); |
| } |
| |
| static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec) |
| { |
| u32 req = 0; |
| int i; |
| |
| for (i = 0; i < millisec; i++) { |
| req = readl(&iop->inbound_queue); |
| if (req != IOPMU_QUEUE_EMPTY) |
| break; |
| msleep(1); |
| } |
| |
| if (req != IOPMU_QUEUE_EMPTY) { |
| writel(req, &iop->outbound_queue); |
| hptiop_pci_posting_flush(iop); |
| return 0; |
| } |
| |
| return -1; |
| } |
| |
| static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag) |
| { |
| if ((tag & IOPMU_QUEUE_MASK_HOST_BITS) == IOPMU_QUEUE_ADDR_HOST_BIT) |
| return hptiop_host_request_callback(hba, |
| tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); |
| else |
| return hptiop_iop_request_callback(hba, tag); |
| } |
| |
| static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba) |
| { |
| u32 req; |
| |
| while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) { |
| |
| if (req & IOPMU_QUEUE_MASK_HOST_BITS) |
| hptiop_request_callback(hba, req); |
| else { |
| struct hpt_iop_request_header __iomem * p; |
| |
| p = (struct hpt_iop_request_header __iomem *) |
| ((char __iomem *)hba->iop + req); |
| |
| if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { |
| if (readl(&p->context)) |
| hptiop_request_callback(hba, req); |
| else |
| writel(1, &p->context); |
| } |
| else |
| hptiop_request_callback(hba, req); |
| } |
| } |
| } |
| |
| static int __iop_intr(struct hptiop_hba *hba) |
| { |
| struct hpt_iopmu __iomem *iop = hba->iop; |
| u32 status; |
| int ret = 0; |
| |
| status = readl(&iop->outbound_intstatus); |
| |
| if (status & IOPMU_OUTBOUND_INT_MSG0) { |
| u32 msg = readl(&iop->outbound_msgaddr0); |
| dprintk("received outbound msg %x\n", msg); |
| writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); |
| hptiop_message_callback(hba, msg); |
| ret = 1; |
| } |
| |
| if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { |
| hptiop_drain_outbound_queue(hba); |
| ret = 1; |
| } |
| |
| return ret; |
| } |
| |
| static int iop_send_sync_request(struct hptiop_hba *hba, |
| void __iomem *_req, u32 millisec) |
| { |
| struct hpt_iop_request_header __iomem *req = _req; |
| u32 i; |
| |
| writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, |
| &req->flags); |
| |
| writel(0, &req->context); |
| |
| writel((unsigned long)req - (unsigned long)hba->iop, |
| &hba->iop->inbound_queue); |
| |
| hptiop_pci_posting_flush(hba->iop); |
| |
| for (i = 0; i < millisec; i++) { |
| __iop_intr(hba); |
| if (readl(&req->context)) |
| return 0; |
| msleep(1); |
| } |
| |
| return -1; |
| } |
| |
| static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) |
| { |
| u32 i; |
| |
| hba->msg_done = 0; |
| |
| writel(msg, &hba->iop->inbound_msgaddr0); |
| |
| hptiop_pci_posting_flush(hba->iop); |
| |
| for (i = 0; i < millisec; i++) { |
| spin_lock_irq(hba->host->host_lock); |
| __iop_intr(hba); |
| spin_unlock_irq(hba->host->host_lock); |
| if (hba->msg_done) |
| break; |
| msleep(1); |
| } |
| |
| return hba->msg_done? 0 : -1; |
| } |
| |
| static int iop_get_config(struct hptiop_hba *hba, |
| struct hpt_iop_request_get_config *config) |
| { |
| u32 req32; |
| struct hpt_iop_request_get_config __iomem *req; |
| |
| req32 = readl(&hba->iop->inbound_queue); |
| if (req32 == IOPMU_QUEUE_EMPTY) |
| return -1; |
| |
| req = (struct hpt_iop_request_get_config __iomem *) |
| ((unsigned long)hba->iop + req32); |
| |
| writel(0, &req->header.flags); |
| writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); |
| writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); |
| writel(IOP_RESULT_PENDING, &req->header.result); |
| |
| if (iop_send_sync_request(hba, req, 20000)) { |
| dprintk("Get config send cmd failed\n"); |
| return -1; |
| } |
| |
| memcpy_fromio(config, req, sizeof(*config)); |
| writel(req32, &hba->iop->outbound_queue); |
| return 0; |
| } |
| |
| static int iop_set_config(struct hptiop_hba *hba, |
| struct hpt_iop_request_set_config *config) |
| { |
| u32 req32; |
| struct hpt_iop_request_set_config __iomem *req; |
| |
| req32 = readl(&hba->iop->inbound_queue); |
| if (req32 == IOPMU_QUEUE_EMPTY) |
| return -1; |
| |
| req = (struct hpt_iop_request_set_config __iomem *) |
| ((unsigned long)hba->iop + req32); |
| |
| memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), |
| (u8 *)config + sizeof(struct hpt_iop_request_header), |
| sizeof(struct hpt_iop_request_set_config) - |
| sizeof(struct hpt_iop_request_header)); |
| |
| writel(0, &req->header.flags); |
| writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); |
| writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); |
| writel(IOP_RESULT_PENDING, &req->header.result); |
| |
| if (iop_send_sync_request(hba, req, 20000)) { |
| dprintk("Set config send cmd failed\n"); |
| return -1; |
| } |
| |
| writel(req32, &hba->iop->outbound_queue); |
| return 0; |
| } |
| |
| static int hptiop_initialize_iop(struct hptiop_hba *hba) |
| { |
| struct hpt_iopmu __iomem *iop = hba->iop; |
| |
| /* enable interrupts */ |
| writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), |
| &iop->outbound_intmask); |
| |
| hba->initialized = 1; |
| |
| /* start background tasks */ |
| if (iop_send_sync_msg(hba, |
| IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { |
| printk(KERN_ERR "scsi%d: fail to start background task\n", |
| hba->host->host_no); |
| return -1; |
| } |
| return 0; |
| } |
| |
| static int hptiop_map_pci_bar(struct hptiop_hba *hba) |
| { |
| u32 mem_base_phy, length; |
| void __iomem *mem_base_virt; |
| struct pci_dev *pcidev = hba->pcidev; |
| |
| if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) { |
| printk(KERN_ERR "scsi%d: pci resource invalid\n", |
| hba->host->host_no); |
| return -1; |
| } |
| |
| mem_base_phy = pci_resource_start(pcidev, 0); |
| length = pci_resource_len(pcidev, 0); |
| mem_base_virt = ioremap(mem_base_phy, length); |
| |
| if (!mem_base_virt) { |
| printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", |
| hba->host->host_no); |
| return -1; |
| } |
| |
| hba->iop = mem_base_virt; |
| dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop); |
| return 0; |
| } |
| |
| static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) |
| { |
| dprintk("iop message 0x%x\n", msg); |
| |
| if (!hba->initialized) |
| return; |
| |
| if (msg == IOPMU_INBOUND_MSG0_RESET) { |
| atomic_set(&hba->resetting, 0); |
| wake_up(&hba->reset_wq); |
| } |
| else if (msg <= IOPMU_INBOUND_MSG0_MAX) |
| hba->msg_done = 1; |
| } |
| |
| static inline struct hptiop_request *get_req(struct hptiop_hba *hba) |
| { |
| struct hptiop_request *ret; |
| |
| dprintk("get_req : req=%p\n", hba->req_list); |
| |
| ret = hba->req_list; |
| if (ret) |
| hba->req_list = ret->next; |
| |
| return ret; |
| } |
| |
| static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req) |
| { |
| dprintk("free_req(%d, %p)\n", req->index, req); |
| req->next = hba->req_list; |
| hba->req_list = req; |
| } |
| |
| static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag) |
| { |
| struct hpt_iop_request_scsi_command *req; |
| struct scsi_cmnd *scp; |
| |
| req = (struct hpt_iop_request_scsi_command *)hba->reqs[tag].req_virt; |
| dprintk("hptiop_host_request_callback: req=%p, type=%d, " |
| "result=%d, context=0x%x tag=%d\n", |
| req, req->header.type, req->header.result, |
| req->header.context, tag); |
| |
| BUG_ON(!req->header.result); |
| BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); |
| |
| scp = hba->reqs[tag].scp; |
| |
| if (HPT_SCP(scp)->mapped) { |
| if (scp->use_sg) |
| pci_unmap_sg(hba->pcidev, |
| (struct scatterlist *)scp->request_buffer, |
| scp->use_sg, |
| scp->sc_data_direction |
| ); |
| else |
| pci_unmap_single(hba->pcidev, |
| HPT_SCP(scp)->dma_handle, |
| scp->request_bufflen, |
| scp->sc_data_direction |
| ); |
| } |
| |
| switch (le32_to_cpu(req->header.result)) { |
| case IOP_RESULT_SUCCESS: |
| scp->result = (DID_OK<<16); |
| break; |
| case IOP_RESULT_BAD_TARGET: |
| scp->result = (DID_BAD_TARGET<<16); |
| break; |
| case IOP_RESULT_BUSY: |
| scp->result = (DID_BUS_BUSY<<16); |
| break; |
| case IOP_RESULT_RESET: |
| scp->result = (DID_RESET<<16); |
| break; |
| case IOP_RESULT_FAIL: |
| scp->result = (DID_ERROR<<16); |
| break; |
| case IOP_RESULT_INVALID_REQUEST: |
| scp->result = (DID_ABORT<<16); |
| break; |
| case IOP_RESULT_MODE_SENSE_CHECK_CONDITION: |
| scp->result = SAM_STAT_CHECK_CONDITION; |
| memset(&scp->sense_buffer, |
| 0, sizeof(scp->sense_buffer)); |
| memcpy(&scp->sense_buffer, |
| &req->sg_list, le32_to_cpu(req->dataxfer_length)); |
| break; |
| |
| default: |
| scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) | |
| (DID_ABORT<<16); |
| break; |
| } |
| |
| dprintk("scsi_done(%p)\n", scp); |
| scp->scsi_done(scp); |
| free_req(hba, &hba->reqs[tag]); |
| } |
| |
| void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag) |
| { |
| struct hpt_iop_request_header __iomem *req; |
| struct hpt_iop_request_ioctl_command __iomem *p; |
| struct hpt_ioctl_k *arg; |
| |
| req = (struct hpt_iop_request_header __iomem *) |
| ((unsigned long)hba->iop + tag); |
| dprintk("hptiop_iop_request_callback: req=%p, type=%d, " |
| "result=%d, context=0x%x tag=%d\n", |
| req, readl(&req->type), readl(&req->result), |
| readl(&req->context), tag); |
| |
| BUG_ON(!readl(&req->result)); |
| BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); |
| |
| p = (struct hpt_iop_request_ioctl_command __iomem *)req; |
| arg = (struct hpt_ioctl_k *)(unsigned long) |
| (readl(&req->context) | |
| ((u64)readl(&req->context_hi32)<<32)); |
| |
| if (readl(&req->result) == IOP_RESULT_SUCCESS) { |
| arg->result = HPT_IOCTL_RESULT_OK; |
| |
| if (arg->outbuf_size) |
| memcpy_fromio(arg->outbuf, |
| &p->buf[(readl(&p->inbuf_size) + 3)& ~3], |
| arg->outbuf_size); |
| |
| if (arg->bytes_returned) |
| *arg->bytes_returned = arg->outbuf_size; |
| } |
| else |
| arg->result = HPT_IOCTL_RESULT_FAILED; |
| |
| arg->done(arg); |
| writel(tag, &hba->iop->outbound_queue); |
| } |
| |
| static irqreturn_t hptiop_intr(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| struct hptiop_hba *hba = dev_id; |
| int handled; |
| unsigned long flags; |
| |
| spin_lock_irqsave(hba->host->host_lock, flags); |
| handled = __iop_intr(hba); |
| spin_unlock_irqrestore(hba->host->host_lock, flags); |
| |
| return handled; |
| } |
| |
| static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) |
| { |
| struct Scsi_Host *host = scp->device->host; |
| struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| struct scatterlist *sglist = (struct scatterlist *)scp->request_buffer; |
| |
| /* |
| * though we'll not get non-use_sg fields anymore, |
| * keep use_sg checking anyway |
| */ |
| if (scp->use_sg) { |
| int idx; |
| |
| HPT_SCP(scp)->sgcnt = pci_map_sg(hba->pcidev, |
| sglist, scp->use_sg, |
| scp->sc_data_direction); |
| HPT_SCP(scp)->mapped = 1; |
| BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); |
| |
| for (idx = 0; idx < HPT_SCP(scp)->sgcnt; idx++) { |
| psg[idx].pci_address = |
| cpu_to_le64(sg_dma_address(&sglist[idx])); |
| psg[idx].size = cpu_to_le32(sg_dma_len(&sglist[idx])); |
| psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? |
| cpu_to_le32(1) : 0; |
| } |
| |
| return HPT_SCP(scp)->sgcnt; |
| } else { |
| HPT_SCP(scp)->dma_handle = pci_map_single( |
| hba->pcidev, |
| scp->request_buffer, |
| scp->request_bufflen, |
| scp->sc_data_direction |
| ); |
| HPT_SCP(scp)->mapped = 1; |
| psg->pci_address = cpu_to_le64(HPT_SCP(scp)->dma_handle); |
| psg->size = cpu_to_le32(scp->request_bufflen); |
| psg->eot = cpu_to_le32(1); |
| return 1; |
| } |
| } |
| |
| static int hptiop_queuecommand(struct scsi_cmnd *scp, |
| void (*done)(struct scsi_cmnd *)) |
| { |
| struct Scsi_Host *host = scp->device->host; |
| struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| struct hpt_iop_request_scsi_command *req; |
| int sg_count = 0; |
| struct hptiop_request *_req; |
| |
| BUG_ON(!done); |
| scp->scsi_done = done; |
| |
| _req = get_req(hba); |
| if (_req == NULL) { |
| dprintk("hptiop_queuecmd : no free req\n"); |
| return SCSI_MLQUEUE_HOST_BUSY; |
| } |
| |
| _req->scp = scp; |
| |
| dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) " |
| "req_index=%d, req=%p\n", |
| scp, |
| host->host_no, scp->device->channel, |
| scp->device->id, scp->device->lun, |
| *((u32 *)&scp->cmnd), |
| *((u32 *)&scp->cmnd + 1), |
| *((u32 *)&scp->cmnd + 2), |
| _req->index, _req->req_virt); |
| |
| scp->result = 0; |
| |
| if (scp->device->channel || scp->device->lun || |
| scp->device->id > hba->max_devices) { |
| scp->result = DID_BAD_TARGET << 16; |
| free_req(hba, _req); |
| goto cmd_done; |
| } |
| |
| req = (struct hpt_iop_request_scsi_command *)_req->req_virt; |
| |
| /* build S/G table */ |
| if (scp->request_bufflen) |
| sg_count = hptiop_buildsgl(scp, req->sg_list); |
| else |
| HPT_SCP(scp)->mapped = 0; |
| |
| req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); |
| req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); |
| req->header.result = cpu_to_le32(IOP_RESULT_PENDING); |
| req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | |
| (u32)_req->index); |
| req->header.context_hi32 = 0; |
| req->dataxfer_length = cpu_to_le32(scp->request_bufflen); |
| req->channel = scp->device->channel; |
| req->target = scp->device->id; |
| req->lun = scp->device->lun; |
| req->header.size = cpu_to_le32( |
| sizeof(struct hpt_iop_request_scsi_command) |
| - sizeof(struct hpt_iopsg) |
| + sg_count * sizeof(struct hpt_iopsg)); |
| |
| memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); |
| |
| writel(IOPMU_QUEUE_ADDR_HOST_BIT | _req->req_shifted_phy, |
| &hba->iop->inbound_queue); |
| |
| return 0; |
| |
| cmd_done: |
| dprintk("scsi_done(scp=%p)\n", scp); |
| scp->scsi_done(scp); |
| return 0; |
| } |
| |
| static const char *hptiop_info(struct Scsi_Host *host) |
| { |
| return driver_name_long; |
| } |
| |
| static int hptiop_reset_hba(struct hptiop_hba *hba) |
| { |
| if (atomic_xchg(&hba->resetting, 1) == 0) { |
| atomic_inc(&hba->reset_count); |
| writel(IOPMU_INBOUND_MSG0_RESET, |
| &hba->iop->inbound_msgaddr0); |
| hptiop_pci_posting_flush(hba->iop); |
| } |
| |
| wait_event_timeout(hba->reset_wq, |
| atomic_read(&hba->resetting) == 0, 60 * HZ); |
| |
| if (atomic_read(&hba->resetting)) { |
| /* IOP is in unkown state, abort reset */ |
| printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); |
| return -1; |
| } |
| |
| if (iop_send_sync_msg(hba, |
| IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { |
| dprintk("scsi%d: fail to start background task\n", |
| hba->host->host_no); |
| } |
| |
| return 0; |
| } |
| |
| static int hptiop_reset(struct scsi_cmnd *scp) |
| { |
| struct Scsi_Host * host = scp->device->host; |
| struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata; |
| |
| printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n", |
| scp->device->host->host_no, scp->device->channel, |
| scp->device->id, scp); |
| |
| return hptiop_reset_hba(hba)? FAILED : SUCCESS; |
| } |
| |
| static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, |
| int queue_depth) |
| { |
| if(queue_depth > 256) |
| queue_depth = 256; |
| scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); |
| return queue_depth; |
| } |
| |
| struct hptiop_getinfo { |
| char __user *buffer; |
| loff_t buflength; |
| loff_t bufoffset; |
| loff_t buffillen; |
| loff_t filpos; |
| }; |
| |
| static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo, |
| char *data, int datalen) |
| { |
| if (pinfo->filpos < pinfo->bufoffset) { |
| if (pinfo->filpos + datalen <= pinfo->bufoffset) { |
| pinfo->filpos += datalen; |
| return; |
| } else { |
| data += (pinfo->bufoffset - pinfo->filpos); |
| datalen -= (pinfo->bufoffset - pinfo->filpos); |
| pinfo->filpos = pinfo->bufoffset; |
| } |
| } |
| |
| pinfo->filpos += datalen; |
| if (pinfo->buffillen == pinfo->buflength) |
| return; |
| |
| if (pinfo->buflength - pinfo->buffillen < datalen) |
| datalen = pinfo->buflength - pinfo->buffillen; |
| |
| if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen)) |
| return; |
| |
| pinfo->buffillen += datalen; |
| } |
| |
| static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...) |
| { |
| va_list args; |
| char buf[128]; |
| int len; |
| |
| va_start(args, fmt); |
| len = vsnprintf(buf, sizeof(buf), fmt, args); |
| va_end(args); |
| hptiop_copy_mem_info(pinfo, buf, len); |
| return len; |
| } |
| |
| static void hptiop_ioctl_done(struct hpt_ioctl_k *arg) |
| { |
| arg->done = NULL; |
| wake_up(&arg->hba->ioctl_wq); |
| } |
| |
| static void hptiop_do_ioctl(struct hpt_ioctl_k *arg) |
| { |
| struct hptiop_hba *hba = arg->hba; |
| u32 val; |
| struct hpt_iop_request_ioctl_command __iomem *req; |
| int ioctl_retry = 0; |
| |
| dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no); |
| |
| /* |
| * check (in + out) buff size from application. |
| * outbuf must be dword aligned. |
| */ |
| if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size > |
| hba->max_request_size |
| - sizeof(struct hpt_iop_request_header) |
| - 4 * sizeof(u32)) { |
| dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n", |
| hba->host->host_no, |
| arg->inbuf_size, arg->outbuf_size); |
| arg->result = HPT_IOCTL_RESULT_FAILED; |
| return; |
| } |
| |
| retry: |
| spin_lock_irq(hba->host->host_lock); |
| |
| val = readl(&hba->iop->inbound_queue); |
| if (val == IOPMU_QUEUE_EMPTY) { |
| spin_unlock_irq(hba->host->host_lock); |
| dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no); |
| arg->result = -1; |
| return; |
| } |
| |
| req = (struct hpt_iop_request_ioctl_command __iomem *) |
| ((unsigned long)hba->iop + val); |
| |
| writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code), |
| &req->ioctl_code); |
| writel(arg->inbuf_size, &req->inbuf_size); |
| writel(arg->outbuf_size, &req->outbuf_size); |
| |
| /* |
| * use the buffer on the IOP local memory first, then copy it |
| * back to host. |
| * the caller's request buffer shoudl be little-endian. |
| */ |
| if (arg->inbuf_size) |
| memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size); |
| |
| /* correct the controller ID for IOP */ |
| if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO || |
| arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 || |
| arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO) |
| && arg->inbuf_size >= sizeof(u32)) |
| writel(0, req->buf); |
| |
| writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type); |
| writel(0, &req->header.flags); |
| writel(offsetof(struct hpt_iop_request_ioctl_command, buf) |
| + arg->inbuf_size, &req->header.size); |
| writel((u32)(unsigned long)arg, &req->header.context); |
| writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0, |
| &req->header.context_hi32); |
| writel(IOP_RESULT_PENDING, &req->header.result); |
| |
| arg->result = HPT_IOCTL_RESULT_FAILED; |
| arg->done = hptiop_ioctl_done; |
| |
| writel(val, &hba->iop->inbound_queue); |
| hptiop_pci_posting_flush(hba->iop); |
| |
| spin_unlock_irq(hba->host->host_lock); |
| |
| wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ); |
| |
| if (arg->done != NULL) { |
| hptiop_reset_hba(hba); |
| if (ioctl_retry++ < 3) |
| goto retry; |
| } |
| |
| dprintk("hpt_iop_ioctl %x result %d\n", |
| arg->ioctl_code, arg->result); |
| } |
| |
| static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf, |
| u32 insize, void *outbuf, u32 outsize) |
| { |
| struct hpt_ioctl_k arg; |
| arg.hba = hba; |
| arg.ioctl_code = code; |
| arg.inbuf = inbuf; |
| arg.outbuf = outbuf; |
| arg.inbuf_size = insize; |
| arg.outbuf_size = outsize; |
| arg.bytes_returned = NULL; |
| hptiop_do_ioctl(&arg); |
| return arg.result; |
| } |
| |
| static inline int hpt_id_valid(__le32 id) |
| { |
| return id != 0 && id != cpu_to_le32(0xffffffff); |
| } |
| |
| static int hptiop_get_controller_info(struct hptiop_hba *hba, |
| struct hpt_controller_info *pinfo) |
| { |
| int id = 0; |
| |
| return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO, |
| &id, sizeof(int), pinfo, sizeof(*pinfo)); |
| } |
| |
| |
| static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus, |
| struct hpt_channel_info *pinfo) |
| { |
| u32 ids[2]; |
| |
| ids[0] = 0; |
| ids[1] = bus; |
| return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO, |
| ids, sizeof(ids), pinfo, sizeof(*pinfo)); |
| |
| } |
| |
| static int hptiop_get_logical_devices(struct hptiop_hba *hba, |
| __le32 *pids, int maxcount) |
| { |
| int i; |
| u32 count = maxcount - 1; |
| |
| if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES, |
| &count, sizeof(u32), |
| pids, sizeof(u32) * maxcount)) |
| return -1; |
| |
| maxcount = le32_to_cpu(pids[0]); |
| for (i = 0; i < maxcount; i++) |
| pids[i] = pids[i+1]; |
| |
| return maxcount; |
| } |
| |
| static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id, |
| struct hpt_logical_device_info_v3 *pinfo) |
| { |
| return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3, |
| &id, sizeof(u32), |
| pinfo, sizeof(*pinfo)); |
| } |
| |
| static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo) |
| { |
| static char s[64]; |
| u32 flags = le32_to_cpu(devinfo->u.array.flags); |
| u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress); |
| u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress); |
| |
| if (flags & ARRAY_FLAG_DISABLED) |
| return "Disabled"; |
| else if (flags & ARRAY_FLAG_TRANSFORMING) |
| sprintf(s, "Expanding/Migrating %d.%d%%%s%s", |
| trans_prog / 100, |
| trans_prog % 100, |
| (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))? |
| ", Critical" : "", |
| ((flags & ARRAY_FLAG_NEEDINITIALIZING) && |
| !(flags & ARRAY_FLAG_REBUILDING) && |
| !(flags & ARRAY_FLAG_INITIALIZING))? |
| ", Unintialized" : ""); |
| else if ((flags & ARRAY_FLAG_BROKEN) && |
| devinfo->u.array.array_type != AT_RAID6) |
| return "Critical"; |
| else if (flags & ARRAY_FLAG_REBUILDING) |
| sprintf(s, |
| (flags & ARRAY_FLAG_NEEDINITIALIZING)? |
| "%sBackground initializing %d.%d%%" : |
| "%sRebuilding %d.%d%%", |
| (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| reb_prog / 100, |
| reb_prog % 100); |
| else if (flags & ARRAY_FLAG_VERIFYING) |
| sprintf(s, "%sVerifying %d.%d%%", |
| (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| reb_prog / 100, |
| reb_prog % 100); |
| else if (flags & ARRAY_FLAG_INITIALIZING) |
| sprintf(s, "%sForground initializing %d.%d%%", |
| (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| reb_prog / 100, |
| reb_prog % 100); |
| else if (flags & ARRAY_FLAG_NEEDTRANSFORM) |
| sprintf(s,"%s%s%s", "Need Expanding/Migrating", |
| (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "", |
| ((flags & ARRAY_FLAG_NEEDINITIALIZING) && |
| !(flags & ARRAY_FLAG_REBUILDING) && |
| !(flags & ARRAY_FLAG_INITIALIZING))? |
| ", Unintialized" : ""); |
| else if (flags & ARRAY_FLAG_NEEDINITIALIZING && |
| !(flags & ARRAY_FLAG_REBUILDING) && |
| !(flags & ARRAY_FLAG_INITIALIZING)) |
| sprintf(s,"%sUninitialized", |
| (flags & ARRAY_FLAG_BROKEN)? "Critical, " : ""); |
| else if ((flags & ARRAY_FLAG_NEEDBUILDING) || |
| (flags & ARRAY_FLAG_BROKEN)) |
| return "Critical"; |
| else |
| return "Normal"; |
| return s; |
| } |
| |
| static void hptiop_dump_devinfo(struct hptiop_hba *hba, |
| struct hptiop_getinfo *pinfo, __le32 id, int indent) |
| { |
| struct hpt_logical_device_info_v3 devinfo; |
| int i; |
| u64 capacity; |
| |
| for (i = 0; i < indent; i++) |
| hptiop_copy_info(pinfo, "\t"); |
| |
| if (hptiop_get_device_info_v3(hba, id, &devinfo)) { |
| hptiop_copy_info(pinfo, "unknown\n"); |
| return; |
| } |
| |
| switch (devinfo.type) { |
| |
| case LDT_DEVICE: { |
| struct hd_driveid *driveid; |
| u32 flags = le32_to_cpu(devinfo.u.device.flags); |
| |
| driveid = (struct hd_driveid *)devinfo.u.device.ident; |
| /* model[] is 40 chars long, but we just want 20 chars here */ |
| driveid->model[20] = 0; |
| |
| if (indent) |
| if (flags & DEVICE_FLAG_DISABLED) |
| hptiop_copy_info(pinfo,"Missing\n"); |
| else |
| hptiop_copy_info(pinfo, "CH%d %s\n", |
| devinfo.u.device.path_id + 1, |
| driveid->model); |
| else { |
| capacity = le64_to_cpu(devinfo.capacity) * 512; |
| do_div(capacity, 1000000); |
| hptiop_copy_info(pinfo, |
| "CH%d %s, %lluMB, %s %s%s%s%s\n", |
| devinfo.u.device.path_id + 1, |
| driveid->model, |
| capacity, |
| (flags & DEVICE_FLAG_DISABLED)? |
| "Disabled" : "Normal", |
| devinfo.u.device.read_ahead_enabled? |
| "[RA]" : "", |
| devinfo.u.device.write_cache_enabled? |
| "[WC]" : "", |
| devinfo.u.device.TCQ_enabled? |
| "[TCQ]" : "", |
| devinfo.u.device.NCQ_enabled? |
| "[NCQ]" : "" |
| ); |
| } |
| break; |
| } |
| |
| case LDT_ARRAY: |
| if (devinfo.target_id != INVALID_TARGET_ID) |
| hptiop_copy_info(pinfo, "[DISK %d_%d] ", |
| devinfo.vbus_id, devinfo.target_id); |
| |
| capacity = le64_to_cpu(devinfo.capacity) * 512; |
| do_div(capacity, 1000000); |
| hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n", |
| devinfo.u.array.name, |
| devinfo.u.array.array_type==AT_RAID0? "RAID0" : |
| devinfo.u.array.array_type==AT_RAID1? "RAID1" : |
| devinfo.u.array.array_type==AT_RAID5? "RAID5" : |
| devinfo.u.array.array_type==AT_RAID6? "RAID6" : |
| devinfo.u.array.array_type==AT_JBOD? "JBOD" : |
| "unknown", |
| capacity, |
| get_array_status(&devinfo)); |
| for (i = 0; i < devinfo.u.array.ndisk; i++) { |
| if (hpt_id_valid(devinfo.u.array.members[i])) { |
| if (cpu_to_le16(1<<i) & |
| devinfo.u.array.critical_members) |
| hptiop_copy_info(pinfo, "\t*"); |
| hptiop_dump_devinfo(hba, pinfo, |
| devinfo.u.array.members[i], indent+1); |
| } |
| else |
| hptiop_copy_info(pinfo, "\tMissing\n"); |
| } |
| if (id == devinfo.u.array.transform_source) { |
| hptiop_copy_info(pinfo, "\tExpanding/Migrating to:\n"); |
| hptiop_dump_devinfo(hba, pinfo, |
| devinfo.u.array.transform_target, indent+1); |
| } |
| break; |
| } |
| } |
| |
| static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); |
| } |
| |
| static ssize_t hptiop_cdev_read(struct file *filp, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hptiop_hba *hba = filp->private_data; |
| struct hptiop_getinfo info; |
| int i, j, ndev; |
| struct hpt_controller_info con_info; |
| struct hpt_channel_info chan_info; |
| __le32 ids[32]; |
| |
| info.buffer = buf; |
| info.buflength = count; |
| info.bufoffset = ppos ? *ppos : 0; |
| info.filpos = 0; |
| info.buffillen = 0; |
| |
| if (hptiop_get_controller_info(hba, &con_info)) |
| return -EIO; |
| |
| for (i = 0; i < con_info.num_buses; i++) { |
| if (hptiop_get_channel_info(hba, i, &chan_info) == 0) { |
| if (hpt_id_valid(chan_info.devices[0])) |
| hptiop_dump_devinfo(hba, &info, |
| chan_info.devices[0], 0); |
| if (hpt_id_valid(chan_info.devices[1])) |
| hptiop_dump_devinfo(hba, &info, |
| chan_info.devices[1], 0); |
| } |
| } |
| |
| ndev = hptiop_get_logical_devices(hba, ids, |
| sizeof(ids) / sizeof(ids[0])); |
| |
| /* |
| * if hptiop_get_logical_devices fails, ndev==-1 and it just |
| * output nothing here |
| */ |
| for (j = 0; j < ndev; j++) |
| hptiop_dump_devinfo(hba, &info, ids[j], 0); |
| |
| if (ppos) |
| *ppos += info.buffillen; |
| |
| return info.buffillen; |
| } |
| |
| static int hptiop_cdev_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg) |
| { |
| struct hptiop_hba *hba = file->private_data; |
| struct hpt_ioctl_u ioctl_u; |
| struct hpt_ioctl_k ioctl_k; |
| u32 bytes_returned; |
| int err = -EINVAL; |
| |
| if (copy_from_user(&ioctl_u, |
| (void __user *)arg, sizeof(struct hpt_ioctl_u))) |
| return -EINVAL; |
| |
| if (ioctl_u.magic != HPT_IOCTL_MAGIC) |
| return -EINVAL; |
| |
| ioctl_k.ioctl_code = ioctl_u.ioctl_code; |
| ioctl_k.inbuf = NULL; |
| ioctl_k.inbuf_size = ioctl_u.inbuf_size; |
| ioctl_k.outbuf = NULL; |
| ioctl_k.outbuf_size = ioctl_u.outbuf_size; |
| ioctl_k.hba = hba; |
| ioctl_k.bytes_returned = &bytes_returned; |
| |
| /* verify user buffer */ |
| if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ, |
| ioctl_u.inbuf, ioctl_k.inbuf_size)) || |
| (ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE, |
| ioctl_u.outbuf, ioctl_k.outbuf_size)) || |
| (ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE, |
| ioctl_u.bytes_returned, sizeof(u32))) || |
| ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) { |
| |
| dprintk("scsi%d: got bad user address\n", hba->host->host_no); |
| return -EINVAL; |
| } |
| |
| /* map buffer to kernel. */ |
| if (ioctl_k.inbuf_size) { |
| ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL); |
| if (!ioctl_k.inbuf) { |
| dprintk("scsi%d: fail to alloc inbuf\n", |
| hba->host->host_no); |
| err = -ENOMEM; |
| goto err_exit; |
| } |
| |
| if (copy_from_user(ioctl_k.inbuf, |
| ioctl_u.inbuf, ioctl_k.inbuf_size)) { |
| goto err_exit; |
| } |
| } |
| |
| if (ioctl_k.outbuf_size) { |
| ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL); |
| if (!ioctl_k.outbuf) { |
| dprintk("scsi%d: fail to alloc outbuf\n", |
| hba->host->host_no); |
| err = -ENOMEM; |
| goto err_exit; |
| } |
| } |
| |
| hptiop_do_ioctl(&ioctl_k); |
| |
| if (ioctl_k.result == HPT_IOCTL_RESULT_OK) { |
| if (ioctl_k.outbuf_size && |
| copy_to_user(ioctl_u.outbuf, |
| ioctl_k.outbuf, ioctl_k.outbuf_size)) |
| goto err_exit; |
| |
| if (ioctl_u.bytes_returned && |
| copy_to_user(ioctl_u.bytes_returned, |
| &bytes_returned, sizeof(u32))) |
| goto err_exit; |
| |
| err = 0; |
| } |
| |
| err_exit: |
| kfree(ioctl_k.inbuf); |
| kfree(ioctl_k.outbuf); |
| |
| return err; |
| } |
| |
| static int hptiop_cdev_open(struct inode *inode, struct file *file) |
| { |
| struct hptiop_hba *hba; |
| unsigned i = 0, minor = iminor(inode); |
| int ret = -ENODEV; |
| |
| spin_lock(&hptiop_hba_list_lock); |
| list_for_each_entry(hba, &hptiop_hba_list, link) { |
| if (i == minor) { |
| file->private_data = hba; |
| ret = 0; |
| goto out; |
| } |
| i++; |
| } |
| |
| out: |
| spin_unlock(&hptiop_hba_list_lock); |
| return ret; |
| } |
| |
| static struct file_operations hptiop_cdev_fops = { |
| .owner = THIS_MODULE, |
| .read = hptiop_cdev_read, |
| .ioctl = hptiop_cdev_ioctl, |
| .open = hptiop_cdev_open, |
| }; |
| |
| static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf) |
| { |
| struct Scsi_Host *host = class_to_shost(class_dev); |
| struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| |
| return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", |
| hba->firmware_version >> 24, |
| (hba->firmware_version >> 16) & 0xff, |
| (hba->firmware_version >> 8) & 0xff, |
| hba->firmware_version & 0xff); |
| } |
| |
| static struct class_device_attribute hptiop_attr_version = { |
| .attr = { |
| .name = "driver-version", |
| .mode = S_IRUGO, |
| }, |
| .show = hptiop_show_version, |
| }; |
| |
| static struct class_device_attribute hptiop_attr_fw_version = { |
| .attr = { |
| .name = "firmware-version", |
| .mode = S_IRUGO, |
| }, |
| .show = hptiop_show_fw_version, |
| }; |
| |
| static struct class_device_attribute *hptiop_attrs[] = { |
| &hptiop_attr_version, |
| &hptiop_attr_fw_version, |
| NULL |
| }; |
| |
| static struct scsi_host_template driver_template = { |
| .module = THIS_MODULE, |
| .name = driver_name, |
| .queuecommand = hptiop_queuecommand, |
| .eh_device_reset_handler = hptiop_reset, |
| .eh_bus_reset_handler = hptiop_reset, |
| .info = hptiop_info, |
| .unchecked_isa_dma = 0, |
| .emulated = 0, |
| .use_clustering = ENABLE_CLUSTERING, |
| .proc_name = driver_name, |
| .shost_attrs = hptiop_attrs, |
| .this_id = -1, |
| .change_queue_depth = hptiop_adjust_disk_queue_depth, |
| }; |
| |
| static int __devinit hptiop_probe(struct pci_dev *pcidev, |
| const struct pci_device_id *id) |
| { |
| struct Scsi_Host *host = NULL; |
| struct hptiop_hba *hba; |
| struct hpt_iop_request_get_config iop_config; |
| struct hpt_iop_request_set_config set_config; |
| dma_addr_t start_phy; |
| void *start_virt; |
| u32 offset, i, req_size; |
| |
| dprintk("hptiop_probe(%p)\n", pcidev); |
| |
| if (pci_enable_device(pcidev)) { |
| printk(KERN_ERR "hptiop: fail to enable pci device\n"); |
| return -ENODEV; |
| } |
| |
| printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", |
| pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, |
| pcidev->irq); |
| |
| pci_set_master(pcidev); |
| |
| /* Enable 64bit DMA if possible */ |
| if (pci_set_dma_mask(pcidev, DMA_64BIT_MASK)) { |
| if (pci_set_dma_mask(pcidev, DMA_32BIT_MASK)) { |
| printk(KERN_ERR "hptiop: fail to set dma_mask\n"); |
| goto disable_pci_device; |
| } |
| } |
| |
| if (pci_request_regions(pcidev, driver_name)) { |
| printk(KERN_ERR "hptiop: pci_request_regions failed\n"); |
| goto disable_pci_device; |
| } |
| |
| host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); |
| if (!host) { |
| printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); |
| goto free_pci_regions; |
| } |
| |
| hba = (struct hptiop_hba *)host->hostdata; |
| |
| hba->pcidev = pcidev; |
| hba->host = host; |
| hba->initialized = 0; |
| |
| atomic_set(&hba->resetting, 0); |
| atomic_set(&hba->reset_count, 0); |
| |
| init_waitqueue_head(&hba->reset_wq); |
| init_waitqueue_head(&hba->ioctl_wq); |
| |
| host->max_lun = 1; |
| host->max_channel = 0; |
| host->io_port = 0; |
| host->n_io_port = 0; |
| host->irq = pcidev->irq; |
| |
| if (hptiop_map_pci_bar(hba)) |
| goto free_scsi_host; |
| |
| if (iop_wait_ready(hba->iop, 20000)) { |
| printk(KERN_ERR "scsi%d: firmware not ready\n", |
| hba->host->host_no); |
| goto unmap_pci_bar; |
| } |
| |
| if (iop_get_config(hba, &iop_config)) { |
| printk(KERN_ERR "scsi%d: get config failed\n", |
| hba->host->host_no); |
| goto unmap_pci_bar; |
| } |
| |
| hba->max_requests = min(le32_to_cpu(iop_config.max_requests), |
| HPTIOP_MAX_REQUESTS); |
| hba->max_devices = le32_to_cpu(iop_config.max_devices); |
| hba->max_request_size = le32_to_cpu(iop_config.request_size); |
| hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); |
| hba->firmware_version = le32_to_cpu(iop_config.firmware_version); |
| hba->sdram_size = le32_to_cpu(iop_config.sdram_size); |
| |
| host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; |
| host->max_id = le32_to_cpu(iop_config.max_devices); |
| host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); |
| host->can_queue = le32_to_cpu(iop_config.max_requests); |
| host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); |
| host->max_cmd_len = 16; |
| |
| set_config.vbus_id = cpu_to_le32(host->host_no); |
| set_config.iop_id = cpu_to_le32(host->host_no); |
| |
| if (iop_set_config(hba, &set_config)) { |
| printk(KERN_ERR "scsi%d: set config failed\n", |
| hba->host->host_no); |
| goto unmap_pci_bar; |
| } |
| |
| if (scsi_add_host(host, &pcidev->dev)) { |
| printk(KERN_ERR "scsi%d: scsi_add_host failed\n", |
| hba->host->host_no); |
| goto unmap_pci_bar; |
| } |
| |
| pci_set_drvdata(pcidev, host); |
| |
| if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, |
| driver_name, hba)) { |
| printk(KERN_ERR "scsi%d: request irq %d failed\n", |
| hba->host->host_no, pcidev->irq); |
| goto remove_scsi_host; |
| } |
| |
| /* Allocate request mem */ |
| req_size = sizeof(struct hpt_iop_request_scsi_command) |
| + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1); |
| if ((req_size& 0x1f) != 0) |
| req_size = (req_size + 0x1f) & ~0x1f; |
| |
| dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); |
| |
| hba->req_size = req_size; |
| start_virt = dma_alloc_coherent(&pcidev->dev, |
| hba->req_size*hba->max_requests + 0x20, |
| &start_phy, GFP_KERNEL); |
| |
| if (!start_virt) { |
| printk(KERN_ERR "scsi%d: fail to alloc request mem\n", |
| hba->host->host_no); |
| goto free_request_irq; |
| } |
| |
| hba->dma_coherent = start_virt; |
| hba->dma_coherent_handle = start_phy; |
| |
| if ((start_phy & 0x1f) != 0) |
| { |
| offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; |
| start_phy += offset; |
| start_virt += offset; |
| } |
| |
| hba->req_list = start_virt; |
| for (i = 0; i < hba->max_requests; i++) { |
| hba->reqs[i].next = NULL; |
| hba->reqs[i].req_virt = start_virt; |
| hba->reqs[i].req_shifted_phy = start_phy >> 5; |
| hba->reqs[i].index = i; |
| free_req(hba, &hba->reqs[i]); |
| start_virt = (char *)start_virt + hba->req_size; |
| start_phy = start_phy + hba->req_size; |
| } |
| |
| /* Enable Interrupt and start background task */ |
| if (hptiop_initialize_iop(hba)) |
| goto free_request_mem; |
| |
| spin_lock(&hptiop_hba_list_lock); |
| list_add_tail(&hba->link, &hptiop_hba_list); |
| spin_unlock(&hptiop_hba_list_lock); |
| |
| scsi_scan_host(host); |
| |
| dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); |
| return 0; |
| |
| free_request_mem: |
| dma_free_coherent(&hba->pcidev->dev, |
| hba->req_size*hba->max_requests + 0x20, |
| hba->dma_coherent, hba->dma_coherent_handle); |
| |
| free_request_irq: |
| free_irq(hba->pcidev->irq, hba); |
| |
| remove_scsi_host: |
| scsi_remove_host(host); |
| |
| unmap_pci_bar: |
| iounmap(hba->iop); |
| |
| free_pci_regions: |
| pci_release_regions(pcidev) ; |
| |
| free_scsi_host: |
| scsi_host_put(host); |
| |
| disable_pci_device: |
| pci_disable_device(pcidev); |
| |
| dprintk("scsi%d: hptiop_probe fail\n", host->host_no); |
| return -ENODEV; |
| } |
| |
| static void hptiop_shutdown(struct pci_dev *pcidev) |
| { |
| struct Scsi_Host *host = pci_get_drvdata(pcidev); |
| struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| struct hpt_iopmu __iomem *iop = hba->iop; |
| u32 int_mask; |
| |
| dprintk("hptiop_shutdown(%p)\n", hba); |
| |
| /* stop the iop */ |
| if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000)) |
| printk(KERN_ERR "scsi%d: shutdown the iop timeout\n", |
| hba->host->host_no); |
| |
| /* disable all outbound interrupts */ |
| int_mask = readl(&iop->outbound_intmask); |
| writel(int_mask | |
| IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE, |
| &iop->outbound_intmask); |
| hptiop_pci_posting_flush(iop); |
| } |
| |
| static void hptiop_remove(struct pci_dev *pcidev) |
| { |
| struct Scsi_Host *host = pci_get_drvdata(pcidev); |
| struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; |
| |
| dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); |
| |
| scsi_remove_host(host); |
| |
| spin_lock(&hptiop_hba_list_lock); |
| list_del_init(&hba->link); |
| spin_unlock(&hptiop_hba_list_lock); |
| |
| hptiop_shutdown(pcidev); |
| |
| free_irq(hba->pcidev->irq, hba); |
| |
| dma_free_coherent(&hba->pcidev->dev, |
| hba->req_size * hba->max_requests + 0x20, |
| hba->dma_coherent, |
| hba->dma_coherent_handle); |
| |
| iounmap(hba->iop); |
| |
| pci_release_regions(hba->pcidev); |
| pci_set_drvdata(hba->pcidev, NULL); |
| pci_disable_device(hba->pcidev); |
| |
| scsi_host_put(host); |
| } |
| |
| static struct pci_device_id hptiop_id_table[] = { |
| { PCI_DEVICE(0x1103, 0x3220) }, |
| { PCI_DEVICE(0x1103, 0x3320) }, |
| {}, |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, hptiop_id_table); |
| |
| static struct pci_driver hptiop_pci_driver = { |
| .name = driver_name, |
| .id_table = hptiop_id_table, |
| .probe = hptiop_probe, |
| .remove = hptiop_remove, |
| .shutdown = hptiop_shutdown, |
| }; |
| |
| static int __init hptiop_module_init(void) |
| { |
| int error; |
| |
| printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); |
| |
| error = pci_register_driver(&hptiop_pci_driver); |
| if (error < 0) |
| return error; |
| |
| hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops); |
| if (hptiop_cdev_major < 0) { |
| printk(KERN_WARNING "unable to register hptiop device.\n"); |
| return hptiop_cdev_major; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit hptiop_module_exit(void) |
| { |
| dprintk("hptiop_module_exit\n"); |
| unregister_chrdev(hptiop_cdev_major, "hptiop"); |
| pci_unregister_driver(&hptiop_pci_driver); |
| } |
| |
| |
| module_init(hptiop_module_init); |
| module_exit(hptiop_module_exit); |
| |
| MODULE_LICENSE("GPL"); |