diff options
Diffstat (limited to 'drivers/scsi/aacraid/comminit.c')
| -rw-r--r-- | drivers/scsi/aacraid/comminit.c | 147 |
1 files changed, 69 insertions, 78 deletions
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 45db84ad3..0e954e37f 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -43,8 +43,6 @@ #include "aacraid.h" -static void aac_define_int_mode(struct aac_dev *dev); - struct aac_common aac_config = { .irq_mod = 1 }; @@ -338,6 +336,74 @@ static int aac_comm_init(struct aac_dev * dev) return 0; } +void aac_define_int_mode(struct aac_dev *dev) +{ + int i, msi_count, min_msix; + + msi_count = i = 0; + /* max. vectors from GET_COMM_PREFERRED_SETTINGS */ + if (dev->max_msix == 0 || + dev->pdev->device == PMC_DEVICE_S6 || + dev->sync_mode) { + dev->max_msix = 1; + dev->vector_cap = + dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB; + return; + } + + /* Don't bother allocating more MSI-X vectors than cpus */ + msi_count = min(dev->max_msix, + (unsigned int)num_online_cpus()); + + dev->max_msix = msi_count; + + if (msi_count > AAC_MAX_MSIX) + msi_count = AAC_MAX_MSIX; + + for (i = 0; i < msi_count; i++) + dev->msixentry[i].entry = i; + + if (msi_count > 1 && + pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) { + min_msix = 2; + i = pci_enable_msix_range(dev->pdev, + dev->msixentry, + min_msix, + msi_count); + if (i > 0) { + dev->msi_enabled = 1; + msi_count = i; + } else { + dev->msi_enabled = 0; + printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n", + dev->name, dev->id, i); + } + } + + if (!dev->msi_enabled) { + msi_count = 1; + i = pci_enable_msi(dev->pdev); + + if (!i) { + dev->msi_enabled = 1; + dev->msi = 1; + } else { + printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n", + dev->name, dev->id, i); + } + } + + if (!dev->msi_enabled) + dev->max_msix = msi_count = 1; + else { + if (dev->max_msix > msi_count) + dev->max_msix = msi_count; + } + dev->vector_cap = + (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / + msi_count; +} struct aac_dev *aac_init_adapter(struct aac_dev *dev) { u32 status[5]; @@ -350,6 +416,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) dev->management_fib_count = 0; spin_lock_init(&dev->manage_lock); spin_lock_init(&dev->sync_lock); + spin_lock_init(&dev->iq_lock); dev->max_fib_size = sizeof(struct hw_fib); dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size - sizeof(struct aac_fibhdr) @@ -508,79 +575,3 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) return dev; } -static void aac_define_int_mode(struct aac_dev *dev) -{ - - int i, msi_count; - - msi_count = i = 0; - /* max. vectors from GET_COMM_PREFERRED_SETTINGS */ - if (dev->max_msix == 0 || - dev->pdev->device == PMC_DEVICE_S6 || - dev->sync_mode) { - dev->max_msix = 1; - dev->vector_cap = - dev->scsi_host_ptr->can_queue + - AAC_NUM_MGT_FIB; - return; - } - - msi_count = min(dev->max_msix, - (unsigned int)num_online_cpus()); - - dev->max_msix = msi_count; - - if (msi_count > AAC_MAX_MSIX) - msi_count = AAC_MAX_MSIX; - - for (i = 0; i < msi_count; i++) - dev->msixentry[i].entry = i; - - if (msi_count > 1 && - pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) { - i = pci_enable_msix(dev->pdev, - dev->msixentry, - msi_count); - /* Check how many MSIX vectors are allocated */ - if (i >= 0) { - dev->msi_enabled = 1; - if (i) { - msi_count = i; - if (pci_enable_msix(dev->pdev, - dev->msixentry, - msi_count)) { - dev->msi_enabled = 0; - printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n", - dev->name, dev->id, i); - } - } - } else { - dev->msi_enabled = 0; - printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n", - dev->name, dev->id, i); - } - } - - if (!dev->msi_enabled) { - msi_count = 1; - i = pci_enable_msi(dev->pdev); - - if (!i) { - dev->msi_enabled = 1; - dev->msi = 1; - } else { - printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n", - dev->name, dev->id, i); - } - } - - if (!dev->msi_enabled) - dev->max_msix = msi_count = 1; - else { - if (dev->max_msix > msi_count) - dev->max_msix = msi_count; - } - dev->vector_cap = - (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / - msi_count; -} |