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Date: Wed, 19 Jun 2024 12:37:53 +0200
From: Eugenio Perez Martin <eperezma@...hat.com>
To: Dragos Tatulea <dtatulea@...dia.com>
Cc: "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>,
Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>, Si-Wei Liu <si-wei.liu@...cle.com>,
virtualization@...ts.linux.dev, linux-kernel@...r.kernel.org,
linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
Cosmin Ratiu <cratiu@...dia.com>
Subject: Re: [PATCH vhost 01/23] vdpa/mlx5: Clarify meaning thorough function rename
On Mon, Jun 17, 2024 at 5:08 PM Dragos Tatulea <dtatulea@...dia.com> 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@...dia.com>
> Reviewed-by: Cosmin Ratiu <cratiu@...dia.com>
Acked-by: Eugenio Pérez <eperezma@...hat.com>
> ---
> 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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