[SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver
HighPoint RocketRAID 3220/3320 series 8 channel PCI-X SATA RAID Host
Adapters.
Fixes from original submission:
Merge Andrew Morton's patches:
- Provide locking for global list
- Fix debug printks
- uninline function with multiple callsites
- coding style fixups
- remove unneeded casts of void*
- kfree(NULL) is legal
- Don't "succeed" if register_chrdev() failed - otherwise we'll later
unregister a not-registered chrdev.
- Don't return from hptiop_do_ioctl() with the spinlock held.
- uninline __hpt_do_ioctl()
Update for Arjan van de Ven's comments:
- put all asm/ includes after the linux/ ones
- replace mdelay with msleep
- add pci posting flush
- do not set pci command reqister in map_pci_bar
- do not try merging sg elements in hptiop_buildsgl()
- remove unused outstandingcommands member from hba structure
- remove unimplemented hptiop_abort() handler
- remove typedef u32 hpt_id_t
Other updates:
- fix endianess
Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
new file mode 100644
index 0000000..8302f3b
--- /dev/null
+++ b/drivers/scsi/hptiop.c
@@ -0,0 +1,1501 @@
+/*
+ * 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;
+
+ /*
+ * hptiop_shutdown will flash controller cache.
+ */
+ if (scp->cmnd[0] == SYNCHRONIZE_CACHE) {
+ scp->result = DID_OK<<16;
+ goto cmd_done;
+ }
+
+ _req = get_req(hba);
+ if (_req == NULL) {
+ dprintk("hptiop_queuecmd : no free req\n");
+ scp->result = DID_BUS_BUSY << 16;
+ goto cmd_done;
+ }
+
+ _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->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->outbound_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, SA_SHIRQ,
+ 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);
+
+ 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_remove_host(host);
+ 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");