diff options
Diffstat (limited to 'drivers/scsi/smartpqi/smartpqi_init.c')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index e07282ed0f34..2df1e8453029 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -175,6 +175,12 @@ module_param_named(hide_vsep, pqi_hide_vsep, int, 0644); MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives."); +static int pqi_disable_managed_interrupts; +module_param_named(disable_managed_interrupts, + pqi_disable_managed_interrupts, int, 0644); +MODULE_PARM_DESC(disable_managed_interrupts, + "Disable the kernel automatically assigning SMP affinity to IRQs."); + static char *raid_levels[] = { "RAID-0", "RAID-4", @@ -4039,10 +4045,14 @@ static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) { int num_vectors_enabled; + unsigned int flags = PCI_IRQ_MSIX; + + if (!pqi_disable_managed_interrupts) + flags |= PCI_IRQ_AFFINITY; num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, - PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); + flags); if (num_vectors_enabled < 0) { dev_err(&ctrl_info->pci_dev->dev, "MSI-X init failed with error %d\n", @@ -8588,6 +8598,7 @@ static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) ctrl_info->max_write_raid_5_6 = PQI_DEFAULT_MAX_WRITE_RAID_5_6; ctrl_info->max_write_raid_1_10_2drive = ~0; ctrl_info->max_write_raid_1_10_3drive = ~0; + ctrl_info->disable_managed_interrupts = pqi_disable_managed_interrupts; return ctrl_info; } |