diff options
| author | Matt Carlson <mcarlson@broadcom.com> | 2012-02-27 09:44:48 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-04 20:54:01 -0500 |
| commit | 0b471506712dd734964b3270d2aa88160712c262 (patch) | |
| tree | 52f04bbb15c1ede47ced10c1f48a9ff71a0a90fb /drivers/pci | |
| parent | e19a82c18f0e6360ee9fd431721794eb0036c0cd (diff) | |
tg3: Recode PCI MRRS adjustment as a PCI quirk
This patch recodes the MRRS cap for 5719 A0 devices as a PCI quirk.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/quirks.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 64765474676..f722c5f6951 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2161,6 +2161,24 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709S, quirk_brcm_570x_limit_vpd); +static void __devinit quirk_brcm_5719_limit_mrrs(struct pci_dev *dev) +{ + u32 rev; + + pci_read_config_dword(dev, 0xf4, &rev); + + /* Only CAP the MRRS if the device is a 5719 A0 */ + if (rev == 0x05719000) { + int readrq = pcie_get_readrq(dev); + if (readrq > 2048) + pcie_set_readrq(dev, 2048); + } +} + +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_TIGON3_5719, + quirk_brcm_5719_limit_mrrs); + /* Originally in EDAC sources for i82875P: * Intel tells BIOS developers to hide device 6 which * configures the overflow device access containing |