[PATCH net v2 0/2] net: ixgbe: Use new flag to disable Relaxed Ordering

From	Ding Tianhong <dingtianhong@huawei.com>
Newsgroups	linux.kernel
Subject	[PATCH net v2 0/2] net: ixgbe: Use new flag to disable Relaxed Ordering
Date	2017-08-17 05:30 +0200
Message-ID	<ufjFn-7sn-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

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.

v2: Simplify the original program according Alex's suggestion,
    remove the new ixgbe flag2 and only check the bit4 in the
    PCIe Device Control register. 

Ding Tianhong (2):
  Revert commit 1a8b6d76dc5b ("net:add one common config...")
  net: ixgbe: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag

 arch/Kconfig                                    |  3 --
 arch/sparc/Kconfig                              |  1 -
 drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c  | 37 ++++++++++++-------------
 drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 32 +++++++++++----------
 4 files changed, 35 insertions(+), 38 deletions(-)

-- 
1.8.3.1

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH net v2 0/2] net: ixgbe: Use new flag to disable Relaxed Ordering Ding Tianhong <dingtianhong@huawei.com> - 2017-08-17 05:30 +0200
  [PATCH net v2 2/2] net: ixgbe: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag Ding Tianhong <dingtianhong@huawei.com> - 2017-08-17 05:30 +0200
    RE: [PATCH net v2 2/2] net: ixgbe: Use new  PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag "Tantilov, Emil S" <emil.s.tantilov@intel.com> - 2017-08-17 16:20 +0200
      Re: [PATCH net v2 2/2] net: ixgbe: Use new  PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag Ding Tianhong <dingtianhong@huawei.com> - 2017-08-18 02:50 +0200
        RE: [PATCH net v2 2/2] net: ixgbe: Use new  PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag "Tantilov, Emil S" <emil.s.tantilov@intel.com> - 2017-08-18 07:10 +0200
          Re: [PATCH net v2 2/2] net: ixgbe: Use new  PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag Ding Tianhong <dingtianhong@huawei.com> - 2017-08-18 08:00 +0200
  [PATCH net v2 1/2] Revert commit 1a8b6d76dc5b ("net:add one common config...") Ding Tianhong <dingtianhong@huawei.com> - 2017-08-17 05:30 +0200

csiph-web