Eli Cohen bc04d93ea3 vdpa/mlx5: Fix suspend/resume index restoration ... When we suspend the VM, the VDPA interface will be reset. When the VM is resumed again, clear_virtqueues() will clear the available and used indices resulting in hardware virqtqueue objects becoming out of sync. We can avoid this function alltogether since qemu will clear them if required, e.g. when the VM went through a reboot. Moreover, since the hw available and used indices should always be identical on query and should be restored to the same value same value for virtqueues that complete in order, we set the single value provided by set_vq_state(). In get_vq_state() we return the value of hardware used index. Fixes: b35ccebe3e ("vdpa/mlx5: Restore the hardware used index after change map") 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/20210408091047.4269-6-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>		2021-04-09 12:08:28 -04:00
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ifcvf	vdpa: set the virtqueue num during register	2021-02-25 14:26:00 -05:00
mlx5	vdpa/mlx5: Fix suspend/resume index restoration	2021-04-09 12:08:28 -04:00
vdpa_sim	vdpa_sim: Skip typecasting from void*	2021-03-14 04:37:36 -04:00
Kconfig	vdpa: Define vdpa mgmt device, ops and a netlink interface	2021-02-23 07:52:56 -05:00
Makefile	vdpa/mlx5: Add support library for mlx5 VDPA implementation	2020-08-05 19:00:23 -04:00
vdpa.c	vdpa: set the virtqueue num during register	2021-02-25 14:26:00 -05:00