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authorJon Mason <jdmason@kudzu.us>2011-06-27 17:39:54 +0000
committerRoland Dreier <roland@purestorage.com>2011-07-18 12:01:22 -0700
commit9b89925c0d8f7d1cc203682df4fab847a7b4b7ec (patch)
tree893fd9d8e76a777a3c4cdfd2e89afdbea28b9a51 /drivers/infiniband
parentcdb73db0b6bf7a1bcf5c788f0c8f803facb6e517 (diff)
downloadop-kernel-dev-9b89925c0d8f7d1cc203682df4fab847a7b4b7ec.zip
op-kernel-dev-9b89925c0d8f7d1cc203682df4fab847a7b4b7ec.tar.gz
IB/mthca: Remove unnecessary read of PCI_CAP_ID_EXP
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> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_main.c2
-rw-r--r--drivers/infiniband/hw/mthca/mthca_reset.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index f983476..aa12a53 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -149,7 +149,7 @@ static int mthca_tune_pci(struct mthca_dev *mdev)
} else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
- if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
+ if (pci_is_pcie(mdev->pdev)) {
if (pcie_set_readrq(mdev->pdev, 4096)) {
mthca_err(mdev, "Couldn't write PCI Express read request, "
"aborting.\n");
diff --git a/drivers/infiniband/hw/mthca/mthca_reset.c b/drivers/infiniband/hw/mthca/mthca_reset.c
index 2a13a16..4fa3534 100644
--- a/drivers/infiniband/hw/mthca/mthca_reset.c
+++ b/drivers/infiniband/hw/mthca/mthca_reset.c
@@ -113,7 +113,7 @@ int mthca_reset(struct mthca_dev *mdev)
}
hca_pcix_cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
- hca_pcie_cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
+ hca_pcie_cap = pci_pcie_cap(mdev->pdev);
if (bridge) {
bridge_header = kmalloc(256, GFP_KERNEL);
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