Re: [dpdk-dev] [PATCH 07/14] net/mlx5: switch to the names in the shared IB context

[Shahaf Shuler <shahafs@mellanox.com>]

Thursday, March 21, 2019 10:11 AM, Viacheslav Ovsiienko:
> Subject: [PATCH 07/14] net/mlx5: switch to the names in the shared IB
> context
> 
> The IB device names are moved from device private data to the shared
> context, code involving the names is updated.
> The IB port index treatment is added where it is relevant.
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

Acked-by: Shahaf Shuler <shahafs@mellaox.com>

> ---
>  drivers/net/mlx5/mlx5.h        |  2 --
>  drivers/net/mlx5/mlx5_ethdev.c | 10 +++++++---
> drivers/net/mlx5/mlx5_stats.c  | 22 +++++++++++++---------
>  3 files changed, 20 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index
> 528ae02..fb9ed3b 100644
> --- a/drivers/net/mlx5/mlx5.h
> +++ b/drivers/net/mlx5/mlx5.h
> @@ -229,8 +229,6 @@ struct mlx5_priv {
>  	struct ibv_context *ctx; /* Verbs context. */
>  	struct ibv_device_attr_ex device_attr; /* Device properties. */
>  	struct ibv_pd *pd; /* Protection Domain. */
> -	char ibdev_name[IBV_SYSFS_NAME_MAX]; /* IB device name. */
> -	char ibdev_path[IBV_SYSFS_PATH_MAX]; /* IB device path for
> secondary */
>  	struct ether_addr mac[MLX5_MAX_MAC_ADDRESSES]; /* MAC
> addresses. */
>  	BITFIELD_DECLARE(mac_own, uint64_t,
> MLX5_MAX_MAC_ADDRESSES);
>  	/* Bit-field of MAC addresses owned by the PMD. */ diff --git
> a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index
> 5b44889..2ccc743 100644
> --- a/drivers/net/mlx5/mlx5_ethdev.c
> +++ b/drivers/net/mlx5/mlx5_ethdev.c
> @@ -138,8 +138,10 @@ struct ethtool_link_settings {
>  	unsigned int dev_port_prev = ~0u;
>  	char match[IF_NAMESIZE] = "";
> 
> +	assert(priv);
> +	assert(priv->sh);
>  	{
> -		MKSTR(path, "%s/device/net", priv->ibdev_path);
> +		MKSTR(path, "%s/device/net", priv->sh->ibdev_path);
> 
>  		dir = opendir(path);
>  		if (dir == NULL) {
> @@ -159,7 +161,7 @@ struct ethtool_link_settings {
>  			continue;
> 
>  		MKSTR(path, "%s/device/net/%s/%s",
> -		      priv->ibdev_path, name,
> +		      priv->sh->ibdev_path, name,
>  		      (dev_type ? "dev_id" : "dev_port"));
> 
>  		file = fopen(path, "rb");
> @@ -222,7 +224,9 @@ struct ethtool_link_settings {
>  	struct mlx5_priv *priv = dev->data->dev_private;
>  	unsigned int ifindex =
>  		priv->nl_socket_rdma >= 0 ?
> -		mlx5_nl_ifindex(priv->nl_socket_rdma, priv->ibdev_name,
> 1) : 0;
> +		mlx5_nl_ifindex(priv->nl_socket_rdma,
> +				priv->sh->ibdev_name,
> +				priv->ibv_port) : 0;
> 
>  	if (!ifindex) {
>  		if (!priv->representor)
> diff --git a/drivers/net/mlx5/mlx5_stats.c b/drivers/net/mlx5/mlx5_stats.c
> index 6906dc8..5af199d 100644
> --- a/drivers/net/mlx5/mlx5_stats.c
> +++ b/drivers/net/mlx5/mlx5_stats.c
> @@ -140,18 +140,22 @@
>  mlx5_read_ib_stat(struct mlx5_priv *priv, const char *ctr_name, uint64_t
> *stat)  {
>  	FILE *file;
> -	MKSTR(path, "%s/ports/1/hw_counters/%s",
> -		  priv->ibdev_path,
> -		  ctr_name);
> +	if (priv->sh) {
> +		MKSTR(path, "%s/ports/%d/hw_counters/%s",
> +			  priv->sh->ibdev_path,
> +			  priv->ibv_port,
> +			  ctr_name);
> 
> -	file = fopen(path, "rb");
> -	if (file) {
> -		int n = fscanf(file, "%" SCNu64, stat);
> +		file = fopen(path, "rb");
> +		if (file) {
> +			int n = fscanf(file, "%" SCNu64, stat);
> 
> -		fclose(file);
> -		if (n != 1)
> -			stat = 0;
> +			fclose(file);
> +			if (n == 1)
> +				return;
> +		}
>  	}
> +	*stat = 0;
>  }
> 
>  /**
> --
> 1.8.3.1