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

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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>
This commit is contained in:
Krishna Gudipati 2010-03-03 17:42:11 -08:00 committed by James Bottomley
parent fac829fdca
commit 4c147dd819
2 changed files with 11 additions and 3 deletions
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3
drivers/scsi/bfa/bfad_attr.c
View File

@ -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);
}
/**

11
drivers/scsi/bfa/bfad_intr.c
View File

@ -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) {
/*