[PATCH] vdpa/ifc: fix argument compatibility check
Maxime Coquelin
maxime.coquelin at redhat.com
Fri Feb 3 15:48:55 CET 2023
On 12/1/22 08:32, Andy Pei wrote:
> "sw_fallback_lm=0" means driver does not provide live migration assistance.
> so hardware assistance is needed to support live migration.
> However registers for live migration in BAR4 are not implemented.
> In the case, we just return error after display some logs.
>
> Fixes: 4c3f55cc23ea ("net/ifc: add LM mode parameter")
> Cc: stable at dpdk.org
>
> Signed-off-by: Andy Pei <andy.pei at intel.com>
> ---
> drivers/vdpa/ifc/ifcvf_vdpa.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
> index 49d68ad..9468f66 100644
> --- a/drivers/vdpa/ifc/ifcvf_vdpa.c
> +++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
> @@ -1746,6 +1746,11 @@ struct rte_vdpa_dev_info dev_info[] = {
> goto error;
> }
> internal->sw_lm = sw_fallback_lm;
> + if (!internal->sw_lm && !internal->hw.lm_cfg) {
> + DRV_LOG(ERR, "Device %s does not support HW assist live migration, please enable sw-live-migration!",
> + pci_dev->name);
> + goto error;
> + }
>
> pthread_mutex_lock(&internal_list_lock);
> TAILQ_INSERT_TAIL(&internal_list, list, next);
Applied to dpdk-next-virtio/main.
Thanks,
Maxime
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