This is a note to let you know that I've just added the patch titled
ixgbevf: add correct exception tracing for XDP
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ixgbevf-add-correct-exception-tracing-for-xdp.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3a43eba985bbfa7a05ec317d8c8d881a7a2c7dea
Author: Magnus Karlsson <magnus.karlsson@xxxxxxxxx>
Date: Mon May 10 11:38:53 2021 +0200
ixgbevf: add correct exception tracing for XDP
[ Upstream commit faae81420d162551b6ef2d804aafc00f4cd68e0e ]
Add missing exception tracing to XDP when a number of different
errors can occur. The support was only partial. Several errors
where not logged which would confuse the user quite a lot not
knowing where and why the packets disappeared.
Fixes: 21092e9ce8b1 ("ixgbevf: Add support for XDP_TX action")
Reported-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
Signed-off-by: Magnus Karlsson <magnus.karlsson@xxxxxxxxx>
Tested-by: Vishakha Jambekar <vishakha.jambekar@xxxxxxxxx>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a10756f0b0d8..7f94b445595c 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1071,11 +1071,14 @@ static struct sk_buff *ixgbevf_run_xdp(struct ixgbevf_adapter *adapter,
case XDP_TX:
xdp_ring = adapter->xdp_ring[rx_ring->queue_index];
result = ixgbevf_xmit_xdp_ring(xdp_ring, xdp);
+ if (result == IXGBEVF_XDP_CONSUMED)
+ goto out_failure;
break;
default:
bpf_warn_invalid_xdp_action(act);
/* fallthrough */
case XDP_ABORTED:
+out_failure:
trace_xdp_exception(rx_ring->netdev, xdp_prog, act);
/* fallthrough -- handle aborts by dropping packet */
case XDP_DROP:
