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myri10ge: clean up unnecessary MSI/MSI-X capability find

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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: Andrew Gallatin <gallatin@myri.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yijing Wang 2013-08-08 21:02:44 +08:00 committed by David S. Miller
parent ae2104be25
commit 40b2956250
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/myricom/myri10ge/myri10ge.c
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@ -3625,13 +3625,12 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
struct pci_dev *pdev = mgp->pdev;
char *old_fw;
bool old_allocated;
int i, status, ncpus, msix_cap;
int i, status, ncpus;
mgp->num_slices = 1;
msix_cap = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
ncpus = netif_get_num_default_rss_queues();
if (myri10ge_max_slices == 1 || msix_cap == 0 ||
if (myri10ge_max_slices == 1 || !pdev->msix_cap ||
(myri10ge_max_slices == -1 && ncpus < 2))
return;