6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Larysa Zaremba <larysa.zaremba@xxxxxxxxx>
[ Upstream commit 04c7e14e5b0b6227e7b00d7a96ca2f2426ab9171 ]
After XDP configuration is completed, we bring the interface up
unconditionally, regardless of its state before the call to .ndo_bpf().
Preserve the information whether the interface had to be brought down and
later bring it up only in such case.
Fixes: efc2214b6047 ("ice: Add support for XDP")
Reviewed-by: Wojciech Drewek <wojciech.drewek@xxxxxxxxx>
Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Tested-by: Chandan Kumar Rout <chandanx.rout@xxxxxxxxx>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
Signed-off-by: Larysa Zaremba <larysa.zaremba@xxxxxxxxx>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/intel/ice/ice_main.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 3ee92b0e62ff..4d3a9fc79a6c 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -2931,8 +2931,8 @@ ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
struct netlink_ext_ack *extack)
{
unsigned int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD;
- bool if_running = netif_running(vsi->netdev);
int ret = 0, xdp_ring_err = 0;
+ bool if_running;
if (prog && !prog->aux->xdp_has_frags) {
if (frame_size > ice_max_xdp_frame_size(vsi)) {
@@ -2949,8 +2949,11 @@ ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
return 0;
}
+ if_running = netif_running(vsi->netdev) &&
+ !test_and_set_bit(ICE_VSI_DOWN, vsi->state);
+
/* need to stop netdev while setting up the program for Rx rings */
- if (if_running && !test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
+ if (if_running) {
ret = ice_down(vsi);
if (ret) {
NL_SET_ERR_MSG_MOD(extack, "Preparing device for XDP attach failed");
--
2.43.0
