> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Jesus Sanchez-Palencia > Sent: Thursday, July 26, 2018 10:21 AM > To: intel-wired-...@lists.osuosl.org > Cc: netdev@vger.kernel.org; Sanchez-Palencia, Jesus <jesus.sanchez- > palen...@intel.com> > Subject: [Intel-wired-lan] [PATCH v1 net-next] igb: Use an advanced ctx > descriptor for launchtime > > On i210, Launchtime (TxTime) requires the usage of an "Advanced > Transmit Context Descriptor" for retrieving the timestamp of a packet. > > The igb driver correctly builds such descriptor on the segmentation > flow (i.e. igb_tso()) or on the checksum one (i.e. igb_tx_csum()), but the > feature is broken for AF_PACKET if the IGB_TX_FLAGS_VLAN is not set, > which happens due to an early return on igb_tx_csum(). > > This flag is only set by the kernel when a VLAN interface is used, > thus we can't just rely on it. Here we are fixing this issue by checking > if launchtime is enabled for the current tx_ring before performing the > early return. > > Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palen...@intel.com> > --- > drivers/net/ethernet/intel/igb/igb_main.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) >
Tested-by: Aaron Brown <aaron.f.br...@intel.com>
