diff options
Diffstat (limited to 'drivers/scsi/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 95123689e9d1..dbd58a7e7bc1 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -61,8 +61,8 @@ #include <linux/hdreg.h> #include <linux/reboot.h> #include <linux/stringify.h> +#include <linux/irq.h> #include <asm/io.h> -#include <asm/irq.h> #include <asm/processor.h> #include <scsi/scsi.h> #include <scsi/scsi_host.h> @@ -7844,6 +7844,30 @@ static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) } /** + * ipr_set_affinity_nobalance + * @ioa_cfg: ipr_ioa_cfg struct for an ipr device + * @flag: bool + * true: ensable "IRQ_NO_BALANCING" bit for msix interrupt + * false: disable "IRQ_NO_BALANCING" bit for msix interrupt + * Description: This function will be called to disable/enable + * "IRQ_NO_BALANCING" to avoid irqbalance daemon + * kicking in during adapter reset. + **/ +static void ipr_set_affinity_nobalance(struct ipr_ioa_cfg *ioa_cfg, bool flag) +{ + int irq, i; + + for (i = 0; i < ioa_cfg->nvectors; i++) { + irq = pci_irq_vector(ioa_cfg->pdev, i); + + if (flag) + irq_set_status_flags(irq, IRQ_NO_BALANCING); + else + irq_clear_status_flags(irq, IRQ_NO_BALANCING); + } +} + +/** * ipr_reset_restore_cfg_space - Restore PCI config space. * @ipr_cmd: ipr command struct * @@ -7866,6 +7890,7 @@ static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) return IPR_RC_JOB_CONTINUE; } + ipr_set_affinity_nobalance(ioa_cfg, false); ipr_fail_all_ops(ioa_cfg); if (ioa_cfg->sis64) { @@ -7945,6 +7970,7 @@ static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); if (rc == PCIBIOS_SUCCESSFUL) { + ipr_set_affinity_nobalance(ioa_cfg, true); ipr_cmd->job_step = ipr_reset_bist_done; ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); rc = IPR_RC_JOB_RETURN; |