[SCSI] bfa: Added separate MSI-X module parameters.

Added separate MSI-X module parameters to selectively
enable / disable MSI-X interrupts for both Brocade HBA and CNA's.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

2 files changed, 11 insertions, 3 deletions

diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index 9129ae3040ff..adf801dbfa15 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -229,7 +229,9 @@ bfad_im_get_host_speed(struct Scsi_Host *shost)
                         (struct bfad_im_port_s *) shost->hostdata[0];
         struct bfad_s         *bfad = im_port->bfad;
         struct bfa_pport_attr_s attr;
+        unsigned long   flags;
 
+        spin_lock_irqsave(shost->host_lock, flags);
         bfa_pport_get_attr(&bfad->bfa, &attr);
         switch (attr.speed) {
         case BFA_PPORT_SPEED_8GBPS:
@@ -248,6 +250,7 @@ bfad_im_get_host_speed(struct Scsi_Host *shost)
                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
                 break;
         }
+        spin_unlock_irqrestore(shost->host_lock, flags);
 }
 
 /**
diff --git a/drivers/scsi/bfa/bfad_intr.c b/drivers/scsi/bfa/bfad_intr.c
index 7de8832f6fee..2b7dbecbebca 100644
--- a/drivers/scsi/bfa/bfad_intr.c
+++ b/drivers/scsi/bfa/bfad_intr.c
@@ -23,8 +23,10 @@ BFA_TRC_FILE(LDRV, INTR);
 /**
  *  bfa_isr BFA driver interrupt functions
  */
-static int msix_disable;
-module_param(msix_disable, int, S_IRUGO | S_IWUSR);
+static int msix_disable_cb;
+static int msix_disable_ct;
+module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
+module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
 /**
  * Line based interrupt handler.
  */
@@ -141,6 +143,7 @@ bfad_setup_intr(struct bfad_s *bfad)
         int error = 0;
         u32 mask = 0, i, num_bit = 0, max_bit = 0;
         struct msix_entry msix_entries[MAX_MSIX_ENTRY];
+        struct pci_dev *pdev = bfad->pcidev;
 
         /* Call BFA to get the msix map for this PCI function.  */
         bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
@@ -148,7 +151,9 @@ bfad_setup_intr(struct bfad_s *bfad)
         /* Set up the msix entry table */
         bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
 
-        if (!msix_disable) {
+        if ((pdev->device == BFA_PCI_DEVICE_ID_CT && !msix_disable_ct) ||
+            (pdev->device != BFA_PCI_DEVICE_ID_CT && !msix_disable_cb)) {
+
                 error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
                 if (error) {
                         /*