| Message ID | 1502876507-9360-1-git-send-email-dingtianhong@huawei.com |
|---|---|
| Headers | show |
| Series | net: ixgbe: Use new flag to disable Relaxed Ordering | expand |
From: Ding Tianhong <dingtianhong@huawei.com> Date: Wed, 16 Aug 2017 17:41:45 +0800 > The new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING has been added > to indicate that Relaxed Ordering Attributes (RO) should not > be used for Transaction Layer Packets (TLP) targeted toward > these affected Root Port, it will clear the bit4 in the PCIe > Device Control register, so the PCIe device drivers could > query PCIe configuration space to determine if it can send > TLPs to Root Port with the Relaxed Ordering Attributes set. > > The ixgbe driver could use this flag to determine if it can > send TLPs to Root Port with the Relaxed Ordering Attributes set. I'll let the Intel guys pick this up.
On 2017/8/17 1:56, David Miller wrote: > From: Ding Tianhong <dingtianhong@huawei.com> > Date: Wed, 16 Aug 2017 17:41:45 +0800 > >> The new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING has been added >> to indicate that Relaxed Ordering Attributes (RO) should not >> be used for Transaction Layer Packets (TLP) targeted toward >> these affected Root Port, it will clear the bit4 in the PCIe >> Device Control register, so the PCIe device drivers could >> query PCIe configuration space to determine if it can send >> TLPs to Root Port with the Relaxed Ordering Attributes set. >> >> The ixgbe driver could use this flag to determine if it can >> send TLPs to Root Port with the Relaxed Ordering Attributes set. > > I'll let the Intel guys pick this up. > Thanks David, but I am not sure when the Intel guys would take over, just Alex has replied, so I will release a new version according Alex's suggestion. > . >
The new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING has been added to indicate that Relaxed Ordering Attributes (RO) should not be used for Transaction Layer Packets (TLP) targeted toward these affected Root Port, it will clear the bit4 in the PCIe Device Control register, so the PCIe device drivers could query PCIe configuration space to determine if it can send TLPs to Root Port with the Relaxed Ordering Attributes set. The ixgbe driver could use this flag to determine if it can send TLPs to Root Port with the Relaxed Ordering Attributes set. Ding Tianhong (2): Revert commit 1a8b6d76dc5b ("net:add one common config...") net: ixgbe: Use new IXGBE_FLAG2_ROOT_NO_RELAXED_ORDERING flag arch/Kconfig | 3 -- arch/sparc/Kconfig | 1 - drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c | 37 ++++++++++++------------- drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 32 +++++++++++---------- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 17 ++++++++++++ 6 files changed, 53 insertions(+), 38 deletions(-) -- 1.8.3.1