2014-01-31 15:17:31

by Alexander Gordeev

[permalink] [raw]
Subject: [PATCH 11/34] benet: Use pci_enable_msix_range()

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 <[email protected]>
---
drivers/net/ethernet/emulex/benet/be_main.c | 31 +++++++++++---------------
1 files changed, 13 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 04ac9c6..f55c09b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2505,7 +2505,7 @@ static void be_msix_disable(struct be_adapter *adapter)

static int be_msix_enable(struct be_adapter *adapter)
{
- int i, status, num_vec;
+ int i, num_vec;
struct device *dev = &adapter->pdev->dev;

/* If RoCE is supported, program the max number of NIC vectors that
@@ -2521,24 +2521,11 @@ static int be_msix_enable(struct be_adapter *adapter)
for (i = 0; i < num_vec; i++)
adapter->msix_entries[i].entry = i;

- status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
- if (status == 0) {
- goto done;
- } else if (status >= MIN_MSIX_VECTORS) {
- num_vec = status;
- status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
- num_vec);
- if (!status)
- goto done;
- }
+ num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
+ MIN_MSIX_VECTORS, num_vec);
+ if (num_vec < 0)
+ goto fail;

- dev_warn(dev, "MSIx enable failed\n");
-
- /* INTx is not supported in VFs, so fail probe if enable_msix fails */
- if (!be_physfn(adapter))
- return status;
- return 0;
-done:
if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
adapter->num_msix_roce_vec = num_vec / 2;
dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
@@ -2550,6 +2537,14 @@ done:
dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
adapter->num_msix_vec);
return 0;
+
+fail:
+ dev_warn(dev, "MSIx enable failed\n");
+
+ /* INTx is not supported in VFs, so fail probe if enable_msix fails */
+ if (!be_physfn(adapter))
+ return num_vec;
+ return 0;
}

static inline int be_msix_vec_get(struct be_adapter *adapter,
--
1.7.7.6


2014-02-03 06:21:18

by Sathya Perla

[permalink] [raw]
Subject: RE: [PATCH 11/34] benet: Use pci_enable_msix_range()

> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf
> Of Alexander Gordeev
>
> 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 <[email protected]>

Acked-by: Sathya Perla < [email protected]>

> ---
> drivers/net/ethernet/emulex/benet/be_main.c | 31 +++++++++++---------------
> 1 files changed, 13 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/net/ethernet/emulex/benet/be_main.c
> b/drivers/net/ethernet/emulex/benet/be_main.c
> index 04ac9c6..f55c09b 100644
> --- a/drivers/net/ethernet/emulex/benet/be_main.c
> +++ b/drivers/net/ethernet/emulex/benet/be_main.c
> @@ -2505,7 +2505,7 @@ static void be_msix_disable(struct be_adapter *adapter)
>
> static int be_msix_enable(struct be_adapter *adapter)
> {
> - int i, status, num_vec;
> + int i, num_vec;
> struct device *dev = &adapter->pdev->dev;
>
> /* If RoCE is supported, program the max number of NIC vectors that
> @@ -2521,24 +2521,11 @@ static int be_msix_enable(struct be_adapter *adapter)
> for (i = 0; i < num_vec; i++)
> adapter->msix_entries[i].entry = i;
>
> - status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
> - if (status == 0) {
> - goto done;
> - } else if (status >= MIN_MSIX_VECTORS) {
> - num_vec = status;
> - status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
> - num_vec);
> - if (!status)
> - goto done;
> - }
> + num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
> + MIN_MSIX_VECTORS, num_vec);
> + if (num_vec < 0)
> + goto fail;
>
> - dev_warn(dev, "MSIx enable failed\n");
> -
> - /* INTx is not supported in VFs, so fail probe if enable_msix fails */
> - if (!be_physfn(adapter))
> - return status;
> - return 0;
> -done:
> if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
> adapter->num_msix_roce_vec = num_vec / 2;
> dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
> @@ -2550,6 +2537,14 @@ done:
> dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
> adapter->num_msix_vec);
> return 0;
> +
> +fail:
> + dev_warn(dev, "MSIx enable failed\n");
> +
> + /* INTx is not supported in VFs, so fail probe if enable_msix fails */
> + if (!be_physfn(adapter))
> + return num_vec;
> + return 0;
> }
>
> static inline int be_msix_vec_get(struct be_adapter *adapter,
> --
> 1.7.7.6
>
> --
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