[dpdk-dev] [PATCH v6 7/7] vhost: convert inflight data to DPDK allocation API

[Xia, Chenbo]

Hi Maxime,

> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin at redhat.com>
> Sent: Friday, June 18, 2021 10:04 PM
> To: dev at dpdk.org; david.marchand at redhat.com; Xia, Chenbo <chenbo.xia at intel.com>
> Cc: Maxime Coquelin <maxime.coquelin at redhat.com>
> Subject: [PATCH v6 7/7] vhost: convert inflight data to DPDK allocation API
> 
> Inflight metadata are allocated using glibc's calloc.
> This patch converts them to rte_zmalloc_socket to take
> care of the NUMA affinity.
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
> ---
>  lib/vhost/vhost.c      |  4 +--
>  lib/vhost/vhost_user.c | 67 +++++++++++++++++++++++++++++++++++-------
>  2 files changed, 58 insertions(+), 13 deletions(-)
> 
> diff --git a/lib/vhost/vhost.c b/lib/vhost/vhost.c
> index 0000cd3297..53a470f547 100644
> --- a/lib/vhost/vhost.c
> +++ b/lib/vhost/vhost.c

[...]

> @@ -1779,15 +1820,17 @@ vhost_check_queue_inflights_split(struct virtio_net
> *dev,
>  	vq->last_avail_idx += resubmit_num;
> 
>  	if (resubmit_num) {
> -		resubmit  = calloc(1, sizeof(struct rte_vhost_resubmit_info));
> +		resubmit  = rte_zmalloc_socket("resubmit", sizeof(struct
> rte_vhost_resubmit_info),
> +				0, vq->numa_node);
>  		if (!resubmit) {
>  			VHOST_LOG_CONFIG(ERR,
>  				"failed to allocate memory for resubmit info.\n");
>  			return RTE_VHOST_MSG_RESULT_ERR;
>  		}
> 
> -		resubmit->resubmit_list = calloc(resubmit_num,
> -			sizeof(struct rte_vhost_resubmit_desc));
> +		resubmit->resubmit_list = rte_zmalloc_socket("resubmit_list",
> +				resubmit_num * sizeof(struct rte_vhost_resubmit_desc),
> +				0, vq->numa_node);
>  		if (!resubmit->resubmit_list) {
>  			VHOST_LOG_CONFIG(ERR,
>  				"failed to allocate memory for inflight desc.\n");
> @@ -1873,15 +1916,17 @@ vhost_check_queue_inflights_packed(struct virtio_net
> *dev,
>  	}
> 
>  	if (resubmit_num) {
> -		resubmit = calloc(1, sizeof(struct rte_vhost_resubmit_info));
> +		resubmit  = rte_zmalloc_socket("resubmit", sizeof(struct
> rte_vhost_resubmit_info),
> +				0, vq->numa_node);

There are still two 'free(resubmit)' in vhost_check_queue_inflights_split and
vhost_check_queue_inflights_packed, which should be replaced with rte_free()

Thanks,
Chenbo 

>  		if (resubmit == NULL) {
>  			VHOST_LOG_CONFIG(ERR,
>  				"failed to allocate memory for resubmit info.\n");
>  			return RTE_VHOST_MSG_RESULT_ERR;
>  		}
> 
> -		resubmit->resubmit_list = calloc(resubmit_num,
> -			sizeof(struct rte_vhost_resubmit_desc));
> +		resubmit->resubmit_list = rte_zmalloc_socket("resubmit_list",
> +				resubmit_num * sizeof(struct rte_vhost_resubmit_desc),
> +				0, vq->numa_node);
>  		if (resubmit->resubmit_list == NULL) {
>  			VHOST_LOG_CONFIG(ERR,
>  				"failed to allocate memory for resubmit desc.\n");
> --
> 2.31.1