Commit a6dcfe08 authored by Quinn Tran's avatar Quinn Tran Committed by Martin K. Petersen
Browse files

scsi: qla2xxx: Limit interrupt vectors to number of CPUs 

Driver created too many QPairs(126) with 28xx adapter.  Limit to the number
of CPUs to minimize wasted resources.

Link: https://lore.kernel.org/r/20201202132312.19966-4-njavali@marvell.com


Reviewed-by: default avatarHimanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: default avatarQuinn Tran <qutran@marvell.com>
Signed-off-by: default avatarNilesh Javali <njavali@marvell.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent c1599657

drivers/scsi/qla2xxx/qla_isr.c

+4 −2
Original line number Diff line number Diff line
@@ -3952,10 +3952,12 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 
	if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {

		/* user wants to control IRQ setting for target mode */

		ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,

		    ha->msix_count, PCI_IRQ_MSIX);

		    min((u16)ha->msix_count, (u16)num_online_cpus()),

		    PCI_IRQ_MSIX);

	} else

		ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,

		    ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,

		    min((u16)ha->msix_count, (u16)num_online_cpus()),

		    PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,

		    &desc);



	if (ret < 0) {