Commit 9fc145fc authored Oct 05, 2018 by Jacob Keller Committed by Jeff Kirsher Nov 07, 2018

ixgbevf: add support for software timestamps



Add a call to skb_tx_timestamp in the ixgbevf_tx_map function. This
enables software timestamping for packets sent over this device driver.
The call is placed just prior to when we notify hardware of the new
packet, in order to software timestamp as close as possible to when the
hardware will transmit.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

parent 7fa57ca4

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -4016,6 +4016,8 @@ static void ixgbevf_tx_map(struct ixgbevf_ring *tx_ring,
		/* set the timestamp */
		first->time_stamp = jiffies;

		skb_tx_timestamp(skb);

		/* Force memory writes to complete before letting h/w know there
		* are new descriptors to fetch. (Only applicable for weak-ordered
		* memory model archs, such as IA-64).

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