Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/scsi/snic/snic.h | 1 -
drivers/scsi/snic/snic_isr.c | 48 ++++++++++++++++++--------------------------
2 files changed, 19 insertions(+), 30 deletions(-)
diff --git a/drivers/scsi/snic/snic.h b/drivers/scsi/snic/snic.h
index 8ed778d..de0ab5f 100644
--- a/drivers/scsi/snic/snic.h
+++ b/drivers/scsi/snic/snic.h
@@ -299,7 +299,6 @@ struct snic {
/* pci related */
struct pci_dev *pdev;
- struct msix_entry msix_entry[SNIC_MSIX_INTR_MAX];
struct snic_msix_entry msix[SNIC_MSIX_INTR_MAX];
/* io related info */
diff --git a/drivers/scsi/snic/snic_isr.c b/drivers/scsi/snic/snic_isr.c
index f552003..d859501 100644
--- a/drivers/scsi/snic/snic_isr.c
+++ b/drivers/scsi/snic/snic_isr.c
@@ -93,7 +93,7 @@ snic_free_intr(struct snic *snic)
/* ONLY interrupt mode MSIX is supported */
for (i = 0; i < ARRAY_SIZE(snic->msix); i++) {
if (snic->msix[i].requested) {
- free_irq(snic->msix_entry[i].vector,
+ free_irq(pci_irq_vector(snic->pdev, i),
snic->msix[i].devid);
}
}
@@ -134,7 +134,7 @@ snic_request_intr(struct snic *snic)
snic->msix[SNIC_MSIX_ERR_NOTIFY].devid = snic;
for (i = 0; i < ARRAY_SIZE(snic->msix); i++) {
- ret = request_irq(snic->msix_entry[i].vector,
+ ret = request_irq(pci_irq_vector(snic->pdev, i),
snic->msix[i].isr,
0,
snic->msix[i].devname,
@@ -158,47 +158,37 @@ snic_set_intr_mode(struct snic *snic)
{
unsigned int n = ARRAY_SIZE(snic->wq);
unsigned int m = SNIC_CQ_IO_CMPL_MAX;
- unsigned int i;
+ unsigned int vecs = n + m + 1;
/*
* We need n WQs, m CQs, and n+m+1 INTRs
* (last INTR is used for WQ/CQ errors and notification area
*/
-
BUILD_BUG_ON((ARRAY_SIZE(snic->wq) + SNIC_CQ_IO_CMPL_MAX) >
ARRAY_SIZE(snic->intr));
- SNIC_BUG_ON(ARRAY_SIZE(snic->msix_entry) < (n + m + 1));
-
- for (i = 0; i < (n + m + 1); i++)
- snic->msix_entry[i].entry = i;
-
- if (snic->wq_count >= n && snic->cq_count >= (n + m)) {
- if (!pci_enable_msix(snic->pdev,
- snic->msix_entry,
- (n + m + 1))) {
- snic->wq_count = n;
- snic->cq_count = n + m;
- snic->intr_count = n + m + 1;
- snic->err_intr_offset = SNIC_MSIX_ERR_NOTIFY;
-
- SNIC_ISR_DBG(snic->shost,
- "Using MSI-X Interrupts\n");
- svnic_dev_set_intr_mode(snic->vdev,
- VNIC_DEV_INTR_MODE_MSIX);
-
- return 0;
- }
- }
- svnic_dev_set_intr_mode(snic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN);
+ if (snic->wq_count < n || snic->cq_count < n + m)
+ goto fail;
+ if (pci_alloc_irq_vectors(snic->pdev, vecs, vecs, PCI_IRQ_MSIX) < 0)
+ goto fail;
+
+ snic->wq_count = n;
+ snic->cq_count = n + m;
+ snic->intr_count = vecs;
+ snic->err_intr_offset = SNIC_MSIX_ERR_NOTIFY;
+
+ SNIC_ISR_DBG(snic->shost, "Using MSI-X Interrupts\n");
+ svnic_dev_set_intr_mode(snic->vdev, VNIC_DEV_INTR_MODE_MSIX);
+ return 0;
+fail:
+ svnic_dev_set_intr_mode(snic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN);
return -EINVAL;
} /* end of snic_set_intr_mode */
void
snic_clear_intr_mode(struct snic *snic)
{
- pci_disable_msix(snic->pdev);
-
+ pci_free_irq_vectors(snic->pdev);
svnic_dev_set_intr_mode(snic->vdev, VNIC_DEV_INTR_MODE_INTX);
}
--
2.1.4
