diff options
Diffstat (limited to 'drivers/block/cciss.c')
| -rw-r--r-- | drivers/block/cciss.c | 79 |
1 files changed, 37 insertions, 42 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index fb5be2d95d5..6399e5090df 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -68,6 +68,12 @@ MODULE_SUPPORTED_DEVICE("HP SA5i SA5i+ SA532 SA5300 SA5312 SA641 SA642 SA6400" MODULE_VERSION("3.6.20"); MODULE_LICENSE("GPL"); +static int cciss_allow_hpsa; +module_param(cciss_allow_hpsa, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(cciss_allow_hpsa, + "Prevent cciss driver from accessing hardware known to be " + " supported by the hpsa driver"); + #include "cciss_cmd.h" #include "cciss.h" #include <linux/cciss_ioctl.h> @@ -101,8 +107,6 @@ static const struct pci_device_id cciss_pci_device_id[] = { {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B}, - {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, {0,} }; @@ -123,8 +127,6 @@ static struct board_type products[] = { {0x409D0E11, "Smart Array 6400 EM", &SA5_access}, {0x40910E11, "Smart Array 6i", &SA5_access}, {0x3225103C, "Smart Array P600", &SA5_access}, - {0x3223103C, "Smart Array P800", &SA5_access}, - {0x3234103C, "Smart Array P400", &SA5_access}, {0x3235103C, "Smart Array P400i", &SA5_access}, {0x3211103C, "Smart Array E200i", &SA5_access}, {0x3212103C, "Smart Array E200", &SA5_access}, @@ -132,6 +134,10 @@ static struct board_type products[] = { {0x3214103C, "Smart Array E200i", &SA5_access}, {0x3215103C, "Smart Array E200i", &SA5_access}, {0x3237103C, "Smart Array E500", &SA5_access}, +/* controllers below this line are also supported by the hpsa driver. */ +#define HPSA_BOUNDARY 0x3223103C + {0x3223103C, "Smart Array P800", &SA5_access}, + {0x3234103C, "Smart Array P400", &SA5_access}, {0x323D103C, "Smart Array P700m", &SA5_access}, {0x3241103C, "Smart Array P212", &SA5_access}, {0x3243103C, "Smart Array P410", &SA5_access}, @@ -140,7 +146,6 @@ static struct board_type products[] = { {0x3249103C, "Smart Array P812", &SA5_access}, {0x324A103C, "Smart Array P712m", &SA5_access}, {0x324B103C, "Smart Array P711m", &SA5_access}, - {0xFFFF103C, "Unknown Smart Array", &SA5_access}, }; /* How long to wait (in milliseconds) for board to go into simple mode */ @@ -3754,7 +3759,27 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev) __u64 cfg_offset; __u32 cfg_base_addr; __u64 cfg_base_addr_index; - int i, err; + int i, prod_index, err; + + subsystem_vendor_id = pdev->subsystem_vendor; + subsystem_device_id = pdev->subsystem_device; + board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) | + subsystem_vendor_id); + + for (i = 0; i < ARRAY_SIZE(products); i++) { + /* Stand aside for hpsa driver on request */ + if (cciss_allow_hpsa && products[i].board_id == HPSA_BOUNDARY) + return -ENODEV; + if (board_id == products[i].board_id) + break; + } + prod_index = i; + if (prod_index == ARRAY_SIZE(products)) { + dev_warn(&pdev->dev, + "unrecognized board ID: 0x%08lx, ignoring.\n", + (unsigned long) board_id); + return -ENODEV; + } /* check to see if controller has been disabled */ /* BEFORE trying to enable it */ @@ -3778,11 +3803,6 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev) return err; } - subsystem_vendor_id = pdev->subsystem_vendor; - subsystem_device_id = pdev->subsystem_device; - board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) | - subsystem_vendor_id); - #ifdef CCISS_DEBUG printk("command = %x\n", command); printk("irq = %x\n", pdev->irq); @@ -3868,14 +3888,9 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev) * leave a little room for ioctl calls. */ c->max_commands = readl(&(c->cfgtable->CmdsOutMax)); - for (i = 0; i < ARRAY_SIZE(products); i++) { - if (board_id == products[i].board_id) { - c->product_name = products[i].product_name; - c->access = *(products[i].access); - c->nr_cmds = c->max_commands - 4; - break; - } - } + c->product_name = products[prod_index].product_name; + c->access = *(products[prod_index].access); + c->nr_cmds = c->max_commands - 4; if ((readb(&c->cfgtable->Signature[0]) != 'C') || (readb(&c->cfgtable->Signature[1]) != 'I') || (readb(&c->cfgtable->Signature[2]) != 'S') || @@ -3884,27 +3899,6 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev) err = -ENODEV; goto err_out_free_res; } - /* We didn't find the controller in our list. We know the - * signature is valid. If it's an HP device let's try to - * bind to the device and fire it up. Otherwise we bail. - */ - if (i == ARRAY_SIZE(products)) { - if (subsystem_vendor_id == PCI_VENDOR_ID_HP) { - c->product_name = products[i-1].product_name; - c->access = *(products[i-1].access); - c->nr_cmds = c->max_commands - 4; - printk(KERN_WARNING "cciss: This is an unknown " - "Smart Array controller.\n" - "cciss: Please update to the latest driver " - "available from www.hp.com.\n"); - } else { - printk(KERN_WARNING "cciss: Sorry, I don't know how" - " to access the Smart Array controller %08lx\n" - , (unsigned long)board_id); - err = -ENODEV; - goto err_out_free_res; - } - } #ifdef CONFIG_X86 { /* Need to enable prefetch in the SCSI core for 6400 in x86 */ @@ -4254,7 +4248,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, mutex_init(&hba[i]->busy_shutting_down); if (cciss_pci_init(hba[i], pdev) != 0) - goto clean0; + goto clean_no_release_regions; sprintf(hba[i]->devname, "cciss%d", i); hba[i]->ctlr = i; @@ -4391,13 +4385,14 @@ clean2: clean1: cciss_destroy_hba_sysfs_entry(hba[i]); clean0: + pci_release_regions(pdev); +clean_no_release_regions: hba[i]->busy_initializing = 0; /* * 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_set_drvdata(pdev, NULL); free_hba(i); return -1; |