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Commit 4c147dd8 authored by Krishna Gudipati's avatar Krishna Gudipati Committed by James Bottomley
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[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: default avatarKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent fac829fd

drivers/scsi/bfa/bfad_attr.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

}



/**

drivers/scsi/bfa/bfad_intr.c

+8 −3
Original line number Diff line number Diff line
@@ -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) {

			/*