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Date: Sat, 14 Oct 2023 10:19:05 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>,
netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>,
Adham Faris <afaris@...dia.com>,
Jacob Keller <jacob.e.keller@...el.com>
Subject: [net-next V3 12/15] net/mlx5e: Refactor mlx5e_rss_init() and mlx5e_rss_free() API's
From: Adham Faris <afaris@...dia.com>
Introduce code refactoring below:
1) Introduce single API for creating and destroying rss object,
mlx5e_rss_create() and mlx5e_rss_destroy() respectively.
2) mlx5e_rss_create() constructs and initializes RSS object depends
on a function new param enum mlx5e_rss_create_type. Callers (like
rx_res.c) will no longer need to allocate RSS object via
mlx5e_rss_alloc() and initialize it immediately via
mlx5e_rss_init_no_tirs() or mlx5e_rss_init(), this will be done by
a single call to mlx5e_rss_create(). Hence, mlx5e_rss_alloc() and
mlx5e_rss_init_no_tirs() have been removed from rss.h file and became
static functions.
Signed-off-by: Adham Faris <afaris@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/en/rss.c | 44 ++++++++++++-------
.../net/ethernet/mellanox/mlx5/core/en/rss.h | 15 ++++---
.../ethernet/mellanox/mlx5/core/en/rx_res.c | 35 ++++-----------
3 files changed, 44 insertions(+), 50 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c
index fd52541e5508..654b5c45e4a5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c
@@ -81,12 +81,12 @@ struct mlx5e_rss {
refcount_t refcnt;
};
-struct mlx5e_rss *mlx5e_rss_alloc(void)
+static struct mlx5e_rss *mlx5e_rss_alloc(void)
{
return kvzalloc(sizeof(struct mlx5e_rss), GFP_KERNEL);
}
-void mlx5e_rss_free(struct mlx5e_rss *rss)
+static void mlx5e_rss_free(struct mlx5e_rss *rss)
{
kvfree(rss);
}
@@ -282,28 +282,35 @@ static int mlx5e_rss_update_tirs(struct mlx5e_rss *rss)
return retval;
}
-int mlx5e_rss_init_no_tirs(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
- bool inner_ft_support, u32 drop_rqn)
+static int mlx5e_rss_init_no_tirs(struct mlx5e_rss *rss)
{
- rss->mdev = mdev;
- rss->inner_ft_support = inner_ft_support;
- rss->drop_rqn = drop_rqn;
-
mlx5e_rss_params_init(rss);
refcount_set(&rss->refcnt, 1);
- return mlx5e_rqt_init_direct(&rss->rqt, mdev, true, drop_rqn);
+ return mlx5e_rqt_init_direct(&rss->rqt, rss->mdev, true, rss->drop_rqn);
}
-int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
- bool inner_ft_support, u32 drop_rqn,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param)
+struct mlx5e_rss *mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_support, u32 drop_rqn,
+ const struct mlx5e_packet_merge_param *init_pkt_merge_param,
+ enum mlx5e_rss_init_type type)
{
+ struct mlx5e_rss *rss;
int err;
- err = mlx5e_rss_init_no_tirs(rss, mdev, inner_ft_support, drop_rqn);
+ rss = mlx5e_rss_alloc();
+ if (!rss)
+ return ERR_PTR(-ENOMEM);
+
+ rss->mdev = mdev;
+ rss->inner_ft_support = inner_ft_support;
+ rss->drop_rqn = drop_rqn;
+
+ err = mlx5e_rss_init_no_tirs(rss);
if (err)
- goto err_out;
+ goto err_free_rss;
+
+ if (type == MLX5E_RSS_INIT_NO_TIRS)
+ goto out;
err = mlx5e_rss_create_tirs(rss, init_pkt_merge_param, false);
if (err)
@@ -315,14 +322,16 @@ int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
goto err_destroy_tirs;
}
- return 0;
+out:
+ return rss;
err_destroy_tirs:
mlx5e_rss_destroy_tirs(rss, false);
err_destroy_rqt:
mlx5e_rqt_destroy(&rss->rqt);
-err_out:
- return err;
+err_free_rss:
+ mlx5e_rss_free(rss);
+ return ERR_PTR(err);
}
int mlx5e_rss_cleanup(struct mlx5e_rss *rss)
@@ -336,6 +345,7 @@ int mlx5e_rss_cleanup(struct mlx5e_rss *rss)
mlx5e_rss_destroy_tirs(rss, true);
mlx5e_rqt_destroy(&rss->rqt);
+ mlx5e_rss_free(rss);
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h
index c6b216416344..8b2290727641 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h
@@ -8,18 +8,19 @@
#include "tir.h"
#include "fs.h"
+enum mlx5e_rss_init_type {
+ MLX5E_RSS_INIT_NO_TIRS = 0,
+ MLX5E_RSS_INIT_TIRS
+};
+
struct mlx5e_rss_params_traffic_type
mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt);
struct mlx5e_rss;
-struct mlx5e_rss *mlx5e_rss_alloc(void);
-void mlx5e_rss_free(struct mlx5e_rss *rss);
-int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
- bool inner_ft_support, u32 drop_rqn,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param);
-int mlx5e_rss_init_no_tirs(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
- bool inner_ft_support, u32 drop_rqn);
+struct mlx5e_rss *mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_support, u32 drop_rqn,
+ const struct mlx5e_packet_merge_param *init_pkt_merge_param,
+ enum mlx5e_rss_init_type type);
int mlx5e_rss_cleanup(struct mlx5e_rss *rss);
void mlx5e_rss_refcnt_inc(struct mlx5e_rss *rss);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c
index abbd08b6d1a9..81b13338bfdf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c
@@ -39,36 +39,27 @@ static int mlx5e_rx_res_rss_init_def(struct mlx5e_rx_res *res,
{
bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT;
struct mlx5e_rss *rss;
- int err;
if (WARN_ON(res->rss[0]))
return -EINVAL;
- rss = mlx5e_rss_alloc();
- if (!rss)
- return -ENOMEM;
-
- err = mlx5e_rss_init(rss, res->mdev, inner_ft_support, res->drop_rqn,
- &res->pkt_merge_param);
- if (err)
- goto err_rss_free;
+ rss = mlx5e_rss_init(res->mdev, inner_ft_support, res->drop_rqn,
+ &res->pkt_merge_param, MLX5E_RSS_INIT_TIRS);
+ if (IS_ERR(rss))
+ return PTR_ERR(rss);
mlx5e_rss_set_indir_uniform(rss, init_nch);
res->rss[0] = rss;
return 0;
-
-err_rss_free:
- mlx5e_rss_free(rss);
- return err;
}
int mlx5e_rx_res_rss_init(struct mlx5e_rx_res *res, u32 *rss_idx, unsigned int init_nch)
{
bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT;
struct mlx5e_rss *rss;
- int err, i;
+ int i;
for (i = 1; i < MLX5E_MAX_NUM_RSS; i++)
if (!res->rss[i])
@@ -77,13 +68,10 @@ int mlx5e_rx_res_rss_init(struct mlx5e_rx_res *res, u32 *rss_idx, unsigned int i
if (i == MLX5E_MAX_NUM_RSS)
return -ENOSPC;
- rss = mlx5e_rss_alloc();
- if (!rss)
- return -ENOMEM;
-
- err = mlx5e_rss_init_no_tirs(rss, res->mdev, inner_ft_support, res->drop_rqn);
- if (err)
- goto err_rss_free;
+ rss = mlx5e_rss_init(res->mdev, inner_ft_support, res->drop_rqn,
+ &res->pkt_merge_param, MLX5E_RSS_INIT_NO_TIRS);
+ if (IS_ERR(rss))
+ return PTR_ERR(rss);
mlx5e_rss_set_indir_uniform(rss, init_nch);
if (res->rss_active)
@@ -93,10 +81,6 @@ int mlx5e_rx_res_rss_init(struct mlx5e_rx_res *res, u32 *rss_idx, unsigned int i
*rss_idx = i;
return 0;
-
-err_rss_free:
- mlx5e_rss_free(rss);
- return err;
}
static int __mlx5e_rx_res_rss_destroy(struct mlx5e_rx_res *res, u32 rss_idx)
@@ -108,7 +92,6 @@ static int __mlx5e_rx_res_rss_destroy(struct mlx5e_rx_res *res, u32 rss_idx)
if (err)
return err;
- mlx5e_rss_free(rss);
res->rss[rss_idx] = NULL;
return 0;
--
2.41.0
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