[Intel-wired-lan] [PATCH v2 iwl-net 2/8] ice: don't busy wait for Rx queue disable in ice_qp_dis()
Rout, ChandanX
chandanx.rout at intel.com
Tue Jun 4 06:53:35 UTC 2024
>-----Original Message-----
>From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of
>Fijalkowski, Maciej
>Sent: Wednesday, May 29, 2024 4:54 PM
>To: intel-wired-lan at lists.osuosl.org
>Cc: Fijalkowski, Maciej <maciej.fijalkowski at intel.com>; Zaremba, Larysa
><larysa.zaremba at intel.com>; netdev at vger.kernel.org; Kubiak, Michal
><michal.kubiak at intel.com>; Nguyen, Anthony L
><anthony.l.nguyen at intel.com>; Karlsson, Magnus
><magnus.karlsson at intel.com>
>Subject: [Intel-wired-lan] [PATCH v2 iwl-net 2/8] ice: don't busy wait for Rx
>queue disable in ice_qp_dis()
>
>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")
>Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski at intel.com>
>---
> drivers/net/ethernet/intel/ice/ice_xsk.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
Tested-by: Chandan Kumar Rout <chandanx.rout at intel.com> (A Contingent Worker at Intel)
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