Eli Cohen 069fedf3fb vdpa/mlx5: Use write memory barrier after updating CQ index ... [ Upstream commit 83ef73b27eb2363f44faf9c3ee28a3fe752cfd15 ] Make sure to put dma write memory barrier after updating CQ consumer index so the hardware knows that there are available CQE slots in the queue. Failure to do this can cause the update of the RX doorbell record to get updated before the CQ consumer index resulting in CQ overrun. Fixes: 1a86b377aa ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices") Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20201209140004.15892-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-12-30 11:54:00 +01:00
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ifcvf	vdpa: ifcvf: free config irq in ifcvf_free_irq()	2020-08-26 08:13:59 -04:00
mlx5	vdpa/mlx5: Use write memory barrier after updating CQ index	2020-12-30 11:54:00 +01:00
vdpa_sim	vhost,vdpa: fixes	2020-10-31 14:41:48 -07:00
Kconfig	vdpa: mlx5: fix vdpa/vhost dependencies	2020-12-02 04:09:56 -05:00
Makefile	vdpa/mlx5: Add support library for mlx5 VDPA implementation	2020-08-05 19:00:23 -04:00
vdpa.c	vdpa: remove hard coded virtq num	2020-08-05 18:39:18 -04:00