cciss: save pdev pointer in per hba structure early to avoid passing it around so...

cciss: save pdev pointer in per hba structure early to avoid passing it around so much.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 665a470..b79ce8e 100644 (file)
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -199,8 +199,7 @@ static void cciss_geometry_inquiry(int ctlr, int logvol,
                        sector_t total_size,
                        unsigned int block_size, InquiryData_struct *inq_buff,
                                   drive_info_struct *drv);
-static void __devinit cciss_interrupt_mode(ctlr_info_t *, struct pci_dev *,
-                                          __u32);
+static void __devinit cciss_interrupt_mode(ctlr_info_t *, __u32);
 static void start_io(ctlr_info_t *h);
 static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size,
                        __u8 page_code, unsigned char scsi3addr[],
@@ -3933,8 +3932,7 @@ clean_up:
  * controllers that are capable. If not, we use IO-APIC mode.
  */
 
-static void __devinit cciss_interrupt_mode(ctlr_info_t *c,
-                                          struct pci_dev *pdev, __u32 board_id)
+static void __devinit cciss_interrupt_mode(ctlr_info_t *c, __u32 board_id)
 {
 #ifdef CONFIG_PCI_MSI
        int err;
@@ -3948,8 +3946,8 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c,
            (board_id == 0x40820E11) || (board_id == 0x40830E11))
                goto default_int_mode;
 
-       if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
-               err = pci_enable_msix(pdev, cciss_msix_entries, 4);
+       if (pci_find_capability(c->pdev, PCI_CAP_ID_MSIX)) {
+               err = pci_enable_msix(c->pdev, cciss_msix_entries, 4);
                if (!err) {
                        c->intr[0] = cciss_msix_entries[0].vector;
                        c->intr[1] = cciss_msix_entries[1].vector;
@@ -3968,8 +3966,8 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c,
                        goto default_int_mode;
                }
        }
-       if (pci_find_capability(pdev, PCI_CAP_ID_MSI)) {
-               if (!pci_enable_msi(pdev)) {
+       if (pci_find_capability(c->pdev, PCI_CAP_ID_MSI)) {
+               if (!pci_enable_msi(c->pdev)) {
                        c->msi_vector = 1;
                } else {
                        printk(KERN_WARNING "cciss: MSI init failed\n");
@@ -3978,11 +3976,11 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c,
 default_int_mode:
 #endif                         /* CONFIG_PCI_MSI */
        /* if we get here we're going to use the default interrupt mode */
-       c->intr[PERF_MODE_INT] = pdev->irq;
+       c->intr[PERF_MODE_INT] = c->pdev->irq;
        return;
 }
 
-static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
+static int __devinit cciss_pci_init(ctlr_info_t *c)
 {
        ushort subsystem_vendor_id, subsystem_device_id, command;
        __u32 board_id, scratchpad = 0;
@@ -3992,8 +3990,8 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
        int i, prod_index, err;
        __u32 trans_offset;
 
-       subsystem_vendor_id = pdev->subsystem_vendor;
-       subsystem_device_id = pdev->subsystem_device;
+       subsystem_vendor_id = c->pdev->subsystem_vendor;
+       subsystem_device_id = c->pdev->subsystem_device;
        board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) |
                    subsystem_vendor_id);
 
@@ -4006,7 +4004,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
        }
        prod_index = i;
        if (prod_index == ARRAY_SIZE(products)) {
-               dev_warn(&pdev->dev,
+               dev_warn(&c->pdev->dev,
                        "unrecognized board ID: 0x%08lx, ignoring.\n",
                        (unsigned long) board_id);
                return -ENODEV;
@@ -4014,20 +4012,20 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 
        /* check to see if controller has been disabled */
        /* BEFORE trying to enable it */
-       (void)pci_read_config_word(pdev, PCI_COMMAND, &command);
+       (void)pci_read_config_word(c->pdev, PCI_COMMAND, &command);
        if (!(command & 0x02)) {
                printk(KERN_WARNING
                       "cciss: controller appears to be disabled\n");
                return -ENODEV;
        }
 
-       err = pci_enable_device(pdev);
+       err = pci_enable_device(c->pdev);
        if (err) {
                printk(KERN_ERR "cciss: Unable to Enable PCI device\n");
                return err;
        }
 
-       err = pci_request_regions(pdev, "cciss");
+       err = pci_request_regions(c->pdev, "cciss");
        if (err) {
                printk(KERN_ERR "cciss: Cannot obtain PCI resources, "
                       "aborting\n");
@@ -4035,19 +4033,19 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
        }
 
 #ifdef CCISS_DEBUG
-       printk("command = %x\n", command);
-       printk("irq = %x\n", pdev->irq);
-       printk("board_id = %x\n", board_id);
+       printk(KERN_INFO "command = %x\n", command);
+       printk(KERN_INFO "irq = %x\n", c->pdev->irq);
+       printk(KERN_INFO "board_id = %x\n", board_id);
 #endif                         /* CCISS_DEBUG */
 
 /* If the kernel supports MSI/MSI-X we will try to enable that functionality,
  * else we use the IO-APIC interrupt assigned to us by system ROM.
  */
-       cciss_interrupt_mode(c, pdev, board_id);
+       cciss_interrupt_mode(c, board_id);
 
        /* find the memory BAR */
        for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
-               if (pci_resource_flags(pdev, i) & IORESOURCE_MEM)
+               if (pci_resource_flags(c->pdev, i) & IORESOURCE_MEM)
                        break;
        }
        if (i == DEVICE_COUNT_RESOURCE) {
@@ -4056,7 +4054,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
                goto err_out_free_res;
        }
 
-       c->paddr = pci_resource_start(pdev, i); /* addressing mode bits
+       c->paddr = pci_resource_start(c->pdev, i); /* addressing mode bits
                                                 * already removed
                                                 */
 
@@ -4086,7 +4084,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 #ifdef CCISS_DEBUG
        printk("cfg base address = %x\n", cfg_base_addr);
 #endif                         /* CCISS_DEBUG */
-       cfg_base_addr_index = find_PCI_BAR_index(pdev, cfg_base_addr);
+       cfg_base_addr_index = find_PCI_BAR_index(c->pdev, cfg_base_addr);
 #ifdef CCISS_DEBUG
        printk("cfg base address index = %llx\n",
                (unsigned long long)cfg_base_addr_index);
@@ -4101,12 +4099,12 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 #ifdef CCISS_DEBUG
        printk("cfg offset = %llx\n", (unsigned long long)cfg_offset);
 #endif                         /* CCISS_DEBUG */
-       c->cfgtable = remap_pci_mem(pci_resource_start(pdev,
+       c->cfgtable = remap_pci_mem(pci_resource_start(c->pdev,
                                                       cfg_base_addr_index) +
                                    cfg_offset, sizeof(CfgTable_struct));
        /* Find performant mode table. */
        trans_offset = readl(&(c->cfgtable->TransMethodOffset));
-       c->transtable = remap_pci_mem(pci_resource_start(pdev,
+       c->transtable = remap_pci_mem(pci_resource_start(c->pdev,
                cfg_base_addr_index) + cfg_offset+trans_offset,
                sizeof(*c->transtable));
        c->board_id = board_id;
@@ -4173,9 +4171,11 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
                dma_prefetch = readl(c->vaddr + I2O_DMA1_CFG);
                dma_prefetch |= 0x8000;
                writel(dma_prefetch, c->vaddr + I2O_DMA1_CFG);
-               pci_read_config_dword(pdev, PCI_COMMAND_PARITY, &dma_refetch);
+               pci_read_config_dword(c->pdev, PCI_COMMAND_PARITY,
+                       &dma_refetch);
                dma_refetch |= 0x1;
-               pci_write_config_dword(pdev, PCI_COMMAND_PARITY, dma_refetch);
+               pci_write_config_dword(c->pdev, PCI_COMMAND_PARITY,
+                       dma_refetch);
        }
 
 #ifdef CCISS_DEBUG
@@ -4189,7 +4189,7 @@ err_out_free_res:
         * Deliberately omit pci_disable_device(): it does something nasty to
         * Smart Array controllers that pci_enable_device does not undo
         */
-       pci_release_regions(pdev);
+       pci_release_regions(c->pdev);
        return err;
 }
 
@@ -4466,17 +4466,18 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
        i = alloc_cciss_hba();
        if (i < 0)
                return -1;
+
+       hba[i]->pdev = pdev;
        hba[i]->busy_initializing = 1;
        INIT_HLIST_HEAD(&hba[i]->cmpQ);
        INIT_HLIST_HEAD(&hba[i]->reqQ);
        mutex_init(&hba[i]->busy_shutting_down);
 
-       if (cciss_pci_init(hba[i], pdev) != 0)
+       if (cciss_pci_init(hba[i]) != 0)
                goto clean_no_release_regions;
 
        sprintf(hba[i]->devname, "cciss%d", i);
        hba[i]->ctlr = i;
-       hba[i]->pdev = pdev;
 
        init_completion(&hba[i]->scan_wait);