Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0c254d863338ceff630814bf17cf8e4b61cb8aa3 Commit: 0c254d863338ceff630814bf17cf8e4b61cb8aa3 Parent: 23b66e2bc2bcebacab7292d7731b7372065b3f98 Author: Auke Kok <[EMAIL PROTECTED]> AuthorDate: Mon Feb 11 09:25:56 2008 -0800 Committer: Jeff Garzik <[EMAIL PROTECTED]> CommitDate: Mon Feb 11 14:51:40 2008 -0500
ixgbe: warn when device is in a x4 or lower width slot It's easy to oversee this issue when working with this card as evrything will work OK but performance is severely limited (something like 1.5gbit on a x1 link) if the pci-express slot does not offer more bandwidth. Signed-off-by: Auke Kok <[EMAIL PROTECTED]> Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]> --- drivers/net/ixgbe/ixgbe_main.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index ead49e5..576fb51 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2778,6 +2778,14 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, hw->mac.type, hw->phy.type, (part_num >> 8), (part_num & 0xff)); + if (link_width <= IXGBE_PCI_LINK_WIDTH_4) { + dev_warn(&pdev->dev, "PCI-Express bandwidth available for " + "this card is not sufficient for optimal " + "performance.\n"); + dev_warn(&pdev->dev, "For optimal performance a x8 " + "PCI-Express slot is required.\n"); + } + /* reset the hardware with the new settings */ ixgbe_start_hw(hw); - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html