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scsi: qla2xxx: Reinstate module parameter ql2xenablemsix

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[mkp: fixed whitespace]

Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Himanshu Madhani 2017-10-13 09:34:03 -07:00 committed by Martin K. Petersen
parent 41319e4f62
commit e7240af510
3 changed files with 16 additions and 3 deletions
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1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -145,6 +145,7 @@ extern int ql2xmvasynctoatio;
extern int ql2xuctrlirq;
extern int ql2xnvmeenable;
extern int ql2xautodetectsfp;
extern int ql2xenablemsix;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);

9
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -3486,11 +3486,14 @@ qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
/* If possible, enable MSI-X. */
if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
!IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
!IS_QLA27XX(ha))
if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
!IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
!IS_QLAFX00(ha) && !IS_QLA27XX(ha)))
goto skip_msi;
if (ql2xenablemsix == 2)
goto skip_msix;
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
(ha->pdev->subsystem_device == 0x7040 ||
ha->pdev->subsystem_device == 0x7041 ||

9
drivers/scsi/qla2xxx/qla_os.c
View File

@ -268,6 +268,15 @@ MODULE_PARM_DESC(ql2xautodetectsfp,
"Detect SFP range and set appropriate distance.\n"
"1 (Default): Enable\n");
int ql2xenablemsix = 1;
module_param(ql2xenablemsix, int, 0444);
MODULE_PARM_DESC(ql2xenablemsix,
"Set to enable MSI or MSI-X interrupt mechanism.\n"
" Default is 1, enable MSI-X interrupt mechanism.\n"
" 0 -- enable traditional pin-based mechanism.\n"
" 1 -- enable MSI-X interrupt mechanism.\n"
" 2 -- enable MSI interrupt mechanism.\n");
/*
* SCSI host template entry points
*/