As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() and pci_enable_msix_range()
interfaces.
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
Cc: Jon Mason <jon.mason@xxxxxxxxx>
Cc: linux-pci@xxxxxxxxxxxxxxx
---
drivers/ntb/ntb_hw.c | 43 ++++++++++++++++---------------------------
drivers/ntb/ntb_hw.h | 2 --
2 files changed, 16 insertions(+), 29 deletions(-)
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 170e8e6..fda37eb 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1085,21 +1085,15 @@ static int ntb_setup_msix(struct ntb_device *ndev)
struct msix_entry *msix;
int msix_entries;
int rc, i;
- u16 val;
- if (!pdev->msix_cap) {
- rc = -EIO;
- goto err;
- }
-
- rc = pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &val);
- if (rc)
+ rc = pci_msix_vec_count(pdev);
+ if (rc < 0) {
goto err;
-
- msix_entries = msix_table_size(val);
- if (msix_entries > ndev->limits.msix_cnt) {
+ } else if (rc > ndev->limits.msix_cnt) {
rc = -EINVAL;
goto err;
+ } else {
+ msix_entries = rc;
}
ndev->msix_entries = kmalloc(sizeof(struct msix_entry) * msix_entries,
@@ -1112,26 +1106,21 @@ static int ntb_setup_msix(struct ntb_device *ndev)
for (i = 0; i < msix_entries; i++)
ndev->msix_entries[i].entry = i;
- rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
- if (rc < 0)
- goto err1;
- if (rc > 0) {
+ if (ndev->hw_type != BWD_HW)
/* On SNB, the link interrupt is always tied to 4th vector. If
* we can't get all 4, then we can't use MSI-X.
*/
- if (ndev->hw_type != BWD_HW) {
- rc = -EIO;
- goto err1;
- }
-
- dev_warn(&pdev->dev,
- "Only %d MSI-X vectors. Limiting the number of queues to that number.\n",
- rc);
+ rc = pci_enable_msix_range(pdev, ndev->msix_entries,
+ msix_entries, msix_entries);
+ else
+ rc = pci_enable_msix_range(pdev, ndev->msix_entries,
+ 1, msix_entries);
+ if (rc < 0)
+ goto err1;
+ else if (rc < msix_entries) {
+ dev_warn(&pdev->dev, "Only %d MSI-X vectors. "
+ "Limiting the number of queues to that number.\n", rc);
msix_entries = rc;
-
- rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
- if (rc)
- goto err1;
}
for (i = 0; i < msix_entries; i++) {
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h
index bbdb7ed..d307107 100644
--- a/drivers/ntb/ntb_hw.h
+++ b/drivers/ntb/ntb_hw.h
@@ -60,8 +60,6 @@
#define PCI_DEVICE_ID_INTEL_NTB_SS_HSX 0x2F0F
#define PCI_DEVICE_ID_INTEL_NTB_B2B_BWD 0x0C4E
-#define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1)
-
#ifndef readq
static inline u64 readq(void __iomem *addr)
{
--
1.7.7.6
--
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