This is a note to let you know that I've just added the patch titled
ice: don't busy wait for Rx queue disable in ice_qp_dis()
to the 6.6-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:
ice-don-t-busy-wait-for-rx-queue-disable-in-ice_qp_d.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f774a1245531a7f0a13ddd4c81ea201ab0cfe221
Author: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
Date: Fri Jul 26 20:17:10 2024 +0200
ice: don't busy wait for Rx queue disable in ice_qp_dis()
[ Upstream commit 1ff72a2f67791cd4ddad19ed830445f57b30e992 ]
When ice driver is spammed with multiple xdpsock instances and flow
control is enabled, there are cases when Rx queue gets stuck and unable
to reflect the disable state in QRX_CTRL register. Similar issue has
previously been addressed in commit 13a6233b033f ("ice: Add support to
enable/disable all Rx queues before waiting").
To workaround this, let us simply not wait for a disabled state as later
patch will make sure that regardless of the encountered error in the
process of disabling a queue pair, the Rx queue will be enabled.
Fixes: 2d4238f55697 ("ice: Add support for AF_XDP")
Reviewed-by: Shannon Nelson <shannon.nelson@xxxxxxx>
Tested-by: Chandan Kumar Rout <chandanx.rout@xxxxxxxxx> (A Contingent Worker at Intel)
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c
index 248cb02958acd..a8d0cd3d831a0 100644
--- a/drivers/net/ethernet/intel/ice/ice_xsk.c
+++ b/drivers/net/ethernet/intel/ice/ice_xsk.c
@@ -199,10 +199,8 @@ static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx)
if (err)
return err;
}
- err = ice_vsi_ctrl_one_rx_ring(vsi, false, q_idx, true);
- if (err)
- return err;
+ ice_vsi_ctrl_one_rx_ring(vsi, false, q_idx, false);
ice_qp_clean_rings(vsi, q_idx);
ice_qp_reset_stats(vsi, q_idx);
