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| author |   Dimitris Michailidis <dm@chelsio.com> | 2010-12-14 21:36:44 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-12-16 13:15:59 -0800 |
| commit | ef306b50b983be4873aed453c1feeaab22f3a098 (patch) | |
| tree | 3bebb611a4c3820179149dbcef372cf08d63f28a /drivers/net/cxgb4/cxgb4_main.c | |
| parent | bnx2x: update version to 1.62.00-2 (diff) | |
| download | linux-dev-ef306b50b983be4873aed453c1feeaab22f3a098.tar.xz linux-dev-ef306b50b983be4873aed453c1feeaab22f3a098.zip | |
cxgb4: enable PCIe relaxed ordering
Enable relaxed ordering for descriptor reads and packet I/O.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/cxgb4/cxgb4_main.c')
| -rw-r--r-- | drivers/net/cxgb4/cxgb4_main.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/cxgb4/cxgb4_main.c b/drivers/net/cxgb4/cxgb4_main.c index 848f89d19fb7..953d62a3403c 100644 --- a/drivers/net/cxgb4/cxgb4_main.c +++ b/drivers/net/cxgb4/cxgb4_main.c @@ -3535,6 +3535,19 @@ static void __devinit print_port_info(struct adapter *adap) } } +static void __devinit enable_pcie_relaxed_ordering(struct pci_dev *dev) +{ + u16 v; + int pos; + + pos = pci_pcie_cap(dev); + if (pos > 0) { + pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &v); + v |= PCI_EXP_DEVCTL_RELAX_EN; + pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, v); + } +} + /* * Free the following resources: * - memory used for tables @@ -3609,6 +3622,7 @@ static int __devinit init_one(struct pci_dev *pdev, } pci_enable_pcie_error_reporting(pdev); + enable_pcie_relaxed_ordering(pdev); pci_set_master(pdev); pci_save_state(pdev); |