Re: [PATCH vhost 01/23] vdpa/mlx5: Clarify meaning thorough function rename

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On Mon, Jun 17, 2024 at 5:08 PM Dragos Tatulea <dtatulea@xxxxxxxxxx> wrote:
>
> setup_driver()/teardown_driver() are a bit vague. These functions are
> used for virtqueue resources.
>
> Same for alloc_resources()/teardown_resources(): they represent fixed
> resources that are meant to exist during the device lifetime.
>
> Signed-off-by: Dragos Tatulea <dtatulea@xxxxxxxxxx>
> Reviewed-by: Cosmin Ratiu <cratiu@xxxxxxxxxx>

Acked-by: Eugenio Pérez <eperezma@xxxxxxxxxx>

> ---
>  drivers/vdpa/mlx5/net/mlx5_vnet.c | 28 ++++++++++++++--------------
>  1 file changed, 14 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> index ecfc16151d61..3422da0e344b 100644
> --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> @@ -144,10 +144,10 @@ static bool is_index_valid(struct mlx5_vdpa_dev *mvdev, u16 idx)
>         return idx <= mvdev->max_idx;
>  }
>
> -static void free_resources(struct mlx5_vdpa_net *ndev);
> +static void free_fixed_resources(struct mlx5_vdpa_net *ndev);
>  static void init_mvqs(struct mlx5_vdpa_net *ndev);
> -static int setup_driver(struct mlx5_vdpa_dev *mvdev);
> -static void teardown_driver(struct mlx5_vdpa_net *ndev);
> +static int setup_vq_resources(struct mlx5_vdpa_dev *mvdev);
> +static void teardown_vq_resources(struct mlx5_vdpa_net *ndev);
>
>  static bool mlx5_vdpa_debug;
>
> @@ -2848,7 +2848,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
>                 if (err)
>                         return err;
>
> -               teardown_driver(ndev);
> +               teardown_vq_resources(ndev);
>         }
>
>         mlx5_vdpa_update_mr(mvdev, new_mr, asid);
> @@ -2862,7 +2862,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
>
>         if (teardown) {
>                 restore_channels_info(ndev);
> -               err = setup_driver(mvdev);
> +               err = setup_vq_resources(mvdev);
>                 if (err)
>                         return err;
>         }
> @@ -2873,7 +2873,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
>  }
>
>  /* reslock must be held for this function */
> -static int setup_driver(struct mlx5_vdpa_dev *mvdev)
> +static int setup_vq_resources(struct mlx5_vdpa_dev *mvdev)
>  {
>         struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
>         int err;
> @@ -2931,7 +2931,7 @@ static int setup_driver(struct mlx5_vdpa_dev *mvdev)
>  }
>
>  /* reslock must be held for this function */
> -static void teardown_driver(struct mlx5_vdpa_net *ndev)
> +static void teardown_vq_resources(struct mlx5_vdpa_net *ndev)
>  {
>
>         WARN_ON(!rwsem_is_locked(&ndev->reslock));
> @@ -2997,7 +2997,7 @@ static void mlx5_vdpa_set_status(struct vdpa_device *vdev, u8 status)
>                                 goto err_setup;
>                         }
>                         register_link_notifier(ndev);
> -                       err = setup_driver(mvdev);
> +                       err = setup_vq_resources(mvdev);
>                         if (err) {
>                                 mlx5_vdpa_warn(mvdev, "failed to setup driver\n");
>                                 goto err_driver;
> @@ -3040,7 +3040,7 @@ static int mlx5_vdpa_compat_reset(struct vdpa_device *vdev, u32 flags)
>
>         down_write(&ndev->reslock);
>         unregister_link_notifier(ndev);
> -       teardown_driver(ndev);
> +       teardown_vq_resources(ndev);
>         clear_vqs_ready(ndev);
>         if (flags & VDPA_RESET_F_CLEAN_MAP)
>                 mlx5_vdpa_destroy_mr_resources(&ndev->mvdev);
> @@ -3197,7 +3197,7 @@ static void mlx5_vdpa_free(struct vdpa_device *vdev)
>
>         ndev = to_mlx5_vdpa_ndev(mvdev);
>
> -       free_resources(ndev);
> +       free_fixed_resources(ndev);
>         mlx5_vdpa_destroy_mr_resources(mvdev);
>         if (!is_zero_ether_addr(ndev->config.mac)) {
>                 pfmdev = pci_get_drvdata(pci_physfn(mvdev->mdev->pdev));
> @@ -3467,7 +3467,7 @@ static int query_mtu(struct mlx5_core_dev *mdev, u16 *mtu)
>         return 0;
>  }
>
> -static int alloc_resources(struct mlx5_vdpa_net *ndev)
> +static int alloc_fixed_resources(struct mlx5_vdpa_net *ndev)
>  {
>         struct mlx5_vdpa_net_resources *res = &ndev->res;
>         int err;
> @@ -3494,7 +3494,7 @@ static int alloc_resources(struct mlx5_vdpa_net *ndev)
>         return err;
>  }
>
> -static void free_resources(struct mlx5_vdpa_net *ndev)
> +static void free_fixed_resources(struct mlx5_vdpa_net *ndev)
>  {
>         struct mlx5_vdpa_net_resources *res = &ndev->res;
>
> @@ -3735,7 +3735,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name,
>                         goto err_res;
>         }
>
> -       err = alloc_resources(ndev);
> +       err = alloc_fixed_resources(ndev);
>         if (err)
>                 goto err_mr;
>
> @@ -3758,7 +3758,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name,
>  err_reg:
>         destroy_workqueue(mvdev->wq);
>  err_res2:
> -       free_resources(ndev);
> +       free_fixed_resources(ndev);
>  err_mr:
>         mlx5_vdpa_destroy_mr_resources(mvdev);
>  err_res:
>
> --
> 2.45.1
>






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