| Message ID | 1309196816-16198-1-git-send-email-jdmason@kudzu.us |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
On Mon, 27 Jun 2011 12:46:56 -0500 Jon Mason <jdmason@kudzu.us> wrote: > The PCIE capability offset is saved during PCI bus walking. It will > remove an unnecessary search in the PCI configuration space if this > value is referenced instead of reacquiring it. Also, pci_is_pcie is a > better way of determining if the device is PCIE or not (as it uses the > same saved PCIE capability offset). > > Signed-off-by: Jon Mason <jdmason@kudzu.us> Acked-by: Stephen Hemminger <shemminger@vyatta.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
From: Jon Mason <jdmason@kudzu.us> Date: Mon, 27 Jun 2011 12:46:56 -0500 > The PCIE capability offset is saved during PCI bus walking. It will > remove an unnecessary search in the PCI configuration space if this > value is referenced instead of reacquiring it. Also, pci_is_pcie is a > better way of determining if the device is PCIE or not (as it uses the > same saved PCIE capability offset). > > Signed-off-by: Jon Mason <jdmason@kudzu.us> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index d252cb1..e14b86e 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1449,7 +1449,7 @@ static void sky2_rx_start(struct sky2_port *sky2) sky2_qset(hw, rxq); /* On PCI express lowering the watermark gives better performance */ - if (pci_find_capability(hw->pdev, PCI_CAP_ID_EXP)) + if (pci_is_pcie(hw->pdev)) sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX); /* These chips have no ram buffer? @@ -3072,7 +3072,7 @@ static void sky2_reset(struct sky2_hw *hw) { struct pci_dev *pdev = hw->pdev; u16 status; - int i, cap; + int i; u32 hwe_mask = Y2_HWE_ALL_MASK; /* disable ASF */ @@ -3108,8 +3108,7 @@ static void sky2_reset(struct sky2_hw *hw) sky2_write8(hw, B0_CTST, CS_MRST_CLR); - cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); - if (cap) { + if (pci_is_pcie(pdev)) { sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, 0xfffffffful); @@ -3171,11 +3170,11 @@ static void sky2_reset(struct sky2_hw *hw) /* check if PSMv2 was running before */ reg = sky2_pci_read16(hw, PSM_CONFIG_REG3); - if (reg & PCI_EXP_LNKCTL_ASPMC) { - cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); + if (reg & PCI_EXP_LNKCTL_ASPMC) /* restore the PCIe Link Control register */ - sky2_pci_write16(hw, cap + PCI_EXP_LNKCTL, reg); - } + sky2_pci_write16(hw, pdev->pcie_cap + PCI_EXP_LNKCTL, + reg); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */
The PCIE capability offset is saved during PCI bus walking. It will remove an unnecessary search in the PCI configuration space if this value is referenced instead of reacquiring it. Also, pci_is_pcie is a better way of determining if the device is PCIE or not (as it uses the same saved PCIE capability offset). Signed-off-by: Jon Mason <jdmason@kudzu.us> --- drivers/net/sky2.c | 15 +++++++-------- 1 files changed, 7 insertions(+), 8 deletions(-)