> -----Original Message----- > From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Manjunath Patil > Sent: Saturday, October 5, 2019 8:20 AM > To: Kirsher, Jeffrey T <jeffrey.t.kirs...@intel.com>; da...@davemloft.net; > intel-wired-...@lists.osuosl.org; net...@vger.kernel.org; linux- > ker...@vger.kernel.org > Cc: manjunath.b.pa...@oracle.com; christophe.jail...@wanadoo.fr; > csprad...@google.com > Subject: [Intel-wired-lan] [PATCH 1/1] ixgbe: protect TX timestamping from > API misuse > > HW timestamping can only be requested for a packet if the NIC is first setup > via ioctl(SIOCSHWTSTAMP). If this step was skipped, then the ixgbe driver > still allowed TX packets to request HW timestamping. In this situation, we see > 'clearing Tx Timestamp hang' noise in the log. > > Fix this by checking that the NIC is configured for HW TX timestamping before > accepting a HW TX timestamping request. > > similar-to: > (26bd4e2 igb: protect TX timestamping from API misuse) > (0a6f2f0 igb: Fix a test with HWTSTAMP_TX_ON) > > Signed-off-by: Manjunath Patil <manjunath.b.pa...@oracle.com> > --- > drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-)
Tested-by: Andrew Bowers <andrewx.bow...@intel.com>
