diff options
| author | Yijing Wang <wangyijing@huawei.com> | 2013-08-08 21:02:36 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-09 13:49:51 -0700 |
| commit | ae2104be25a5698bb24d436855f6af9b65ea26fe (patch) | |
| tree | 9fd0d65521ab8afd83ccefbdc0233a444fc3460f | |
| parent | 555a842811cb5df0774ea7ff59e9c73f30ca0c11 (diff) | |
| download | linux-ae2104be25a5698bb24d436855f6af9b65ea26fe.tar.bz2 | |
bnx2x: clean up unnecessary MSI/MSI-X capability find
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device driver should use
pci_dev->msi_cap/msix_cap to determine whether the device
support MSI/MSI-X instead of using
pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
Access to PCIe device config space again will consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: netdev@vger.kernel.org
Acked-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index ab5bd6c319d3..39d7db58bf86 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -12544,16 +12544,14 @@ static int bnx2x_set_qm_cid_count(struct bnx2x *bp) static int bnx2x_get_num_non_def_sbs(struct pci_dev *pdev, int cnic_cnt, bool is_vf) { - int pos, index; + int index; u16 control = 0; - pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); - /* * If MSI-X is not supported - return number of SBs needed to support * one fast path queue: one FP queue + SB for CNIC */ - if (!pos) { + if (!pdev->msix_cap) { dev_info(&pdev->dev, "no msix capability found\n"); return 1 + cnic_cnt; } @@ -12566,7 +12564,7 @@ static int bnx2x_get_num_non_def_sbs(struct pci_dev *pdev, * without the default SB. * For VFs there is no default SB, then we return (index+1). */ - pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &control); + pci_read_config_word(pdev, pdev->msix_cap + PCI_MSI_FLAGS, &control); index = control & PCI_MSIX_FLAGS_QSIZE; |