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path: root/drivers/block/skd_main.c
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Diffstat (limited to 'drivers/block/skd_main.c')
-rw-r--r--drivers/block/skd_main.c67
1 files changed, 27 insertions, 40 deletions
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index eb6e1e0e8db2..a69dd93d1bd5 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -3910,18 +3910,22 @@ static void skd_release_msix(struct skd_device *skdev)
struct skd_msix_entry *qentry;
int i;
- if (skdev->msix_entries == NULL)
- return;
- for (i = 0; i < skdev->msix_count; i++) {
- qentry = &skdev->msix_entries[i];
- skdev = qentry->rsp;
+ if (skdev->msix_entries) {
+ for (i = 0; i < skdev->msix_count; i++) {
+ qentry = &skdev->msix_entries[i];
+ skdev = qentry->rsp;
+
+ if (qentry->have_irq)
+ devm_free_irq(&skdev->pdev->dev,
+ qentry->vector, qentry->rsp);
+ }
- if (qentry->have_irq)
- devm_free_irq(&skdev->pdev->dev,
- qentry->vector, qentry->rsp);
+ kfree(skdev->msix_entries);
}
- pci_disable_msix(skdev->pdev);
- kfree(skdev->msix_entries);
+
+ if (skdev->msix_count)
+ pci_disable_msix(skdev->pdev);
+
skdev->msix_count = 0;
skdev->msix_entries = NULL;
}
@@ -3929,12 +3933,10 @@ static void skd_release_msix(struct skd_device *skdev)
static int skd_acquire_msix(struct skd_device *skdev)
{
int i, rc;
- struct pci_dev *pdev;
- struct msix_entry *entries = NULL;
+ struct pci_dev *pdev = skdev->pdev;
+ struct msix_entry *entries;
struct skd_msix_entry *qentry;
- pdev = skdev->pdev;
- skdev->msix_count = SKD_MAX_MSIX_COUNT;
entries = kzalloc(sizeof(struct msix_entry) * SKD_MAX_MSIX_COUNT,
GFP_KERNEL);
if (!entries)
@@ -3943,40 +3945,26 @@ static int skd_acquire_msix(struct skd_device *skdev)
for (i = 0; i < SKD_MAX_MSIX_COUNT; i++)
entries[i].entry = i;
- rc = pci_enable_msix(pdev, entries, SKD_MAX_MSIX_COUNT);
- if (rc < 0)
+ rc = pci_enable_msix_range(pdev, entries,
+ SKD_MIN_MSIX_COUNT, SKD_MAX_MSIX_COUNT);
+ if (rc < 0) {
+ pr_err("(%s): failed to enable MSI-X %d\n",
+ skd_name(skdev), rc);
goto msix_out;
- if (rc) {
- if (rc < SKD_MIN_MSIX_COUNT) {
- pr_err("(%s): failed to enable MSI-X %d\n",
- skd_name(skdev), rc);
- goto msix_out;
- }
- pr_debug("%s:%s:%d %s: <%s> allocated %d MSI-X vectors\n",
- skdev->name, __func__, __LINE__,
- pci_name(pdev), skdev->name, rc);
-
- skdev->msix_count = rc;
- rc = pci_enable_msix(pdev, entries, skdev->msix_count);
- if (rc) {
- pr_err("(%s): failed to enable MSI-X "
- "support (%d) %d\n",
- skd_name(skdev), skdev->msix_count, rc);
- goto msix_out;
- }
}
+
+ skdev->msix_count = rc;
skdev->msix_entries = kzalloc(sizeof(struct skd_msix_entry) *
skdev->msix_count, GFP_KERNEL);
if (!skdev->msix_entries) {
rc = -ENOMEM;
- skdev->msix_count = 0;
pr_err("(%s): msix table allocation error\n",
skd_name(skdev));
goto msix_out;
}
- qentry = skdev->msix_entries;
for (i = 0; i < skdev->msix_count; i++) {
+ qentry = &skdev->msix_entries[i];
qentry->vector = entries[i].vector;
qentry->entry = entries[i].entry;
qentry->rsp = NULL;
@@ -3985,11 +3973,10 @@ static int skd_acquire_msix(struct skd_device *skdev)
skdev->name, __func__, __LINE__,
pci_name(pdev), skdev->name,
i, qentry->vector, qentry->entry);
- qentry++;
}
/* Enable MSI-X vectors for the base queue */
- for (i = 0; i < SKD_MAX_MSIX_COUNT; i++) {
+ for (i = 0; i < skdev->msix_count; i++) {
qentry = &skdev->msix_entries[i];
snprintf(qentry->isr_name, sizeof(qentry->isr_name),
"%s%d-msix %s", DRV_NAME, skdev->devno,
@@ -4045,8 +4032,8 @@ RETRY_IRQ_TYPE:
case SKD_IRQ_MSI:
snprintf(skdev->isr_name, sizeof(skdev->isr_name), "%s%d-msi",
DRV_NAME, skdev->devno);
- rc = pci_enable_msi(pdev);
- if (!rc) {
+ rc = pci_enable_msi_range(pdev, 1, 1);
+ if (rc > 0) {
rc = devm_request_irq(&pdev->dev, pdev->irq, skd_isr, 0,
skdev->isr_name, skdev);
if (rc) {