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authorChristoph Hellwig <hch@lst.de>2016-11-09 21:42:22 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2016-11-12 18:11:06 +0300
commitbc2bb1543e62a5d0ae51ccdfde697dc97957f2a1 (patch)
tree189786e08f4ebd707f49345a010a4938d32a681b /drivers/scsi/hpsa.h
parent4861ee15f2b7dee17a869d9edd3463b812f77636 (diff)
downloadlinux-bc2bb1543e62a5d0ae51ccdfde697dc97957f2a1.tar.xz
scsi: hpsa: use pci_alloc_irq_vectors and automatic irq affinity
This patch converts over hpsa to use the pci_alloc_irq_vectors including the PCI_IRQ_AFFINITY flag that automatically assigns spread out irq affinity to the I/O queues. It also cleans up the per-ctrl interrupt state due to the use of the pci_irq_vector and pci_free_irq_vectors helpers that don't need to know the exact irq type. Additionally it changes a little oddity in the existing code that was using different array indixes into the per-vector arrays depending on whether a controller is using a single INTx or single MSI irq. [mkp: fixed typo] Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Don Brace <don.brace@microsemi.com> Tested-by: Don Brace <don.brace@microsemi.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hpsa.h')
-rw-r--r--drivers/scsi/hpsa.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 82cdfad874f3..3faf6cff95ee 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -175,9 +175,7 @@ struct ctlr_info {
# define DOORBELL_INT 1
# define SIMPLE_MODE_INT 2
# define MEMQ_MODE_INT 3
- unsigned int intr[MAX_REPLY_QUEUES];
- unsigned int msix_vector;
- unsigned int msi_vector;
+ unsigned int msix_vectors;
int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
struct access_method access;
@@ -464,7 +462,7 @@ static unsigned long SA5_performant_completed(struct ctlr_info *h, u8 q)
unsigned long register_value = FIFO_EMPTY;
/* msi auto clears the interrupt pending bit. */
- if (unlikely(!(h->msi_vector || h->msix_vector))) {
+ if (unlikely(!(h->pdev->msi_enabled || h->msix_vectors))) {
/* flush the controller write of the reply queue by reading
* outbound doorbell status register.
*/