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path: root/drivers/scsi/aacraid/comminit.c
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Diffstat (limited to 'drivers/scsi/aacraid/comminit.c')
-rw-r--r--drivers/scsi/aacraid/comminit.c147
1 files changed, 69 insertions, 78 deletions
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 45db84ad322f..0e954e37f0b5 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;
-}