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kernel/SOURCES/1569-net-mlx5e-introduce-mlx5e-rss-init-params.patch

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From 382207217359bed3c6dd288669d8eabc4726fa49 Mon Sep 17 00:00:00 2001
From: Kamal Heib <kheib@redhat.com>
Date: Sun, 19 Apr 2026 18:24:31 -0400
Subject: [PATCH] net/mlx5e: Introduce mlx5e_rss_init_params
JIRA: https://redhat.atlassian.net/browse/RHEL-169055
commit fc92cddd7a833d51ef857eca672214cab755ceaa
Author: Carolina Jubran <cjubran@nvidia.com>
Date: Mon Sep 29 00:25:21 2025 +0300
net/mlx5e: Introduce mlx5e_rss_init_params
Introduce a dedicated structure to group RSS initialization parameters
that are only used during RSS creation, and drop the "init" prefix
from pkt_merge_param.
No functional changes.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1759094723-843774-6-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kamal Heib <kheib@redhat.com>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c
index 6422eeabc334..c3eeeec62129 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c
@@ -193,10 +193,10 @@ mlx5e_rss_get_tt_config(struct mlx5e_rss *rss, enum mlx5_traffic_types tt)
return rss_tt;
}
-static int mlx5e_rss_create_tir(struct mlx5e_rss *rss,
- enum mlx5_traffic_types tt,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param,
- bool inner)
+static int
+mlx5e_rss_create_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
+ const struct mlx5e_packet_merge_param *pkt_merge_param,
+ bool inner)
{
struct mlx5e_rss_params_traffic_type rss_tt;
struct mlx5e_tir_builder *builder;
@@ -229,7 +229,7 @@ static int mlx5e_rss_create_tir(struct mlx5e_rss *rss,
rqtn = mlx5e_rqt_get_rqtn(&rss->rqt);
mlx5e_tir_builder_build_rqt(builder, rss->mdev->mlx5e_res.hw_objs.td.tdn,
rqtn, rss->inner_ft_support);
- mlx5e_tir_builder_build_packet_merge(builder, init_pkt_merge_param);
+ mlx5e_tir_builder_build_packet_merge(builder, pkt_merge_param);
rss_tt = mlx5e_rss_get_tt_config(rss, tt);
mlx5e_tir_builder_build_rss(builder, &rss->hash, &rss_tt, inner);
@@ -265,15 +265,16 @@ static void mlx5e_rss_destroy_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types
*tir_p = NULL;
}
-static int mlx5e_rss_create_tirs(struct mlx5e_rss *rss,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param,
- bool inner)
+static int
+mlx5e_rss_create_tirs(struct mlx5e_rss *rss,
+ const struct mlx5e_packet_merge_param *pkt_merge_param,
+ bool inner)
{
enum mlx5_traffic_types tt, max_tt;
int err;
for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
- err = mlx5e_rss_create_tir(rss, tt, init_pkt_merge_param, inner);
+ err = mlx5e_rss_create_tir(rss, tt, pkt_merge_param, inner);
if (err)
goto err_destroy_tirs;
}
@@ -359,10 +360,9 @@ static int mlx5e_rss_init_no_tirs(struct mlx5e_rss *rss)
rss->drop_rqn, rss->indir.max_table_size);
}
-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, unsigned int nch,
- unsigned int max_nch)
+struct mlx5e_rss *
+mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_support, u32 drop_rqn,
+ const struct mlx5e_rss_init_params *init_params)
{
u32 rqt_max_size, rqt_size;
struct mlx5e_rss *rss;
@@ -372,8 +372,8 @@ struct mlx5e_rss *mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_suppo
if (!rss)
return ERR_PTR(-ENOMEM);
- rqt_size = mlx5e_rqt_size(mdev, nch);
- rqt_max_size = mlx5e_rqt_size(mdev, max_nch);
+ rqt_size = mlx5e_rqt_size(mdev, init_params->nch);
+ rqt_max_size = mlx5e_rqt_size(mdev, init_params->max_nch);
err = mlx5e_rss_params_indir_init(&rss->indir, rqt_size, rqt_max_size);
if (err)
goto err_free_rss;
@@ -386,15 +386,18 @@ struct mlx5e_rss *mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_suppo
if (err)
goto err_free_indir;
- if (type == MLX5E_RSS_INIT_NO_TIRS)
+ if (init_params->type == MLX5E_RSS_INIT_NO_TIRS)
goto out;
- err = mlx5e_rss_create_tirs(rss, init_pkt_merge_param, false);
+ err = mlx5e_rss_create_tirs(rss, init_params->pkt_merge_param,
+ false);
if (err)
goto err_destroy_rqt;
if (inner_ft_support) {
- err = mlx5e_rss_create_tirs(rss, init_pkt_merge_param, true);
+ err = mlx5e_rss_create_tirs(rss,
+ init_params->pkt_merge_param,
+ true);
if (err)
goto err_destroy_tirs;
}
@@ -470,10 +473,10 @@ bool mlx5e_rss_valid_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, bool
/* Fill the "tirn" output parameter.
* Create the requested TIR if it's its first usage.
*/
-int mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss,
- enum mlx5_traffic_types tt,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param,
- bool inner, u32 *tirn)
+int
+mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
+ const struct mlx5e_packet_merge_param *pkt_merge_param,
+ bool inner, u32 *tirn)
{
struct mlx5e_tir *tir;
@@ -481,7 +484,7 @@ int mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss,
if (!tir) { /* TIR doesn't exist, create one */
int err;
- err = mlx5e_rss_create_tir(rss, tt, init_pkt_merge_param, inner);
+ err = mlx5e_rss_create_tir(rss, tt, pkt_merge_param, inner);
if (err)
return err;
tir = rss_get_tir(rss, tt, inner);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h
index 616097c8770e..80225709675b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h
@@ -13,6 +13,13 @@ enum mlx5e_rss_init_type {
MLX5E_RSS_INIT_TIRS
};
+struct mlx5e_rss_init_params {
+ enum mlx5e_rss_init_type type;
+ const struct mlx5e_packet_merge_param *pkt_merge_param;
+ unsigned int nch;
+ unsigned int max_nch;
+};
+
struct mlx5e_rss_params_traffic_type
mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt);
@@ -22,10 +29,9 @@ int mlx5e_rss_params_indir_init(struct mlx5e_rss_params_indir *indir,
u32 actual_table_size, u32 max_table_size);
void mlx5e_rss_params_indir_cleanup(struct mlx5e_rss_params_indir *indir);
void mlx5e_rss_params_indir_modify_actual_size(struct mlx5e_rss *rss, u32 num_channels);
-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, unsigned int nch,
- unsigned int max_nch);
+struct mlx5e_rss *
+mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_support, u32 drop_rqn,
+ const struct mlx5e_rss_init_params *init_params);
int mlx5e_rss_cleanup(struct mlx5e_rss *rss);
void mlx5e_rss_refcnt_inc(struct mlx5e_rss *rss);
@@ -37,10 +43,10 @@ u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
bool inner);
bool mlx5e_rss_valid_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, bool inner);
u32 mlx5e_rss_get_rqtn(struct mlx5e_rss *rss);
-int mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss,
- enum mlx5_traffic_types tt,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param,
- bool inner, u32 *tirn);
+int
+mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
+ const struct mlx5e_packet_merge_param *pkt_merge_param,
+ bool inner, u32 *tirn);
void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, u32 *vhca_ids, unsigned int num_rqns);
void mlx5e_rss_disable(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 a2acbfee2b77..74dda61e92bc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c
@@ -54,17 +54,25 @@ static int mlx5e_rx_res_rss_init_def(struct mlx5e_rx_res *res,
unsigned int init_nch)
{
bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT;
+ struct mlx5e_rss_init_params init_params;
struct mlx5e_rss *rss;
if (WARN_ON(res->rss[0]))
return -EINVAL;
+ init_params = (struct mlx5e_rss_init_params) {
+ .type = MLX5E_RSS_INIT_TIRS,
+ .pkt_merge_param = &res->pkt_merge_param,
+ .nch = init_nch,
+ .max_nch = res->max_nch,
+ };
+
rss = mlx5e_rss_init(res->mdev, inner_ft_support, res->drop_rqn,
- &res->pkt_merge_param, MLX5E_RSS_INIT_TIRS, init_nch, res->max_nch);
+ &init_params);
if (IS_ERR(rss))
return PTR_ERR(rss);
- mlx5e_rss_set_indir_uniform(rss, init_nch);
+ mlx5e_rss_set_indir_uniform(rss, init_params.nch);
res->rss[0] = rss;
@@ -74,18 +82,25 @@ static int mlx5e_rx_res_rss_init_def(struct mlx5e_rx_res *res,
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_init_params init_params;
struct mlx5e_rss *rss;
if (WARN_ON_ONCE(res->rss[rss_idx]))
return -ENOSPC;
+ init_params = (struct mlx5e_rss_init_params) {
+ .type = MLX5E_RSS_INIT_NO_TIRS,
+ .pkt_merge_param = &res->pkt_merge_param,
+ .nch = init_nch,
+ .max_nch = res->max_nch,
+ };
+
rss = mlx5e_rss_init(res->mdev, inner_ft_support, res->drop_rqn,
- &res->pkt_merge_param, MLX5E_RSS_INIT_NO_TIRS, init_nch,
- res->max_nch);
+ &init_params);
if (IS_ERR(rss))
return PTR_ERR(rss);
- mlx5e_rss_set_indir_uniform(rss, init_nch);
+ mlx5e_rss_set_indir_uniform(rss, init_params.nch);
if (res->rss_active) {
u32 *vhca_ids = get_vhca_ids(res, 0);
@@ -438,7 +453,7 @@ static void mlx5e_rx_res_ptp_destroy(struct mlx5e_rx_res *res)
struct mlx5e_rx_res *
mlx5e_rx_res_create(struct mlx5_core_dev *mdev, enum mlx5e_rx_res_features features,
unsigned int max_nch, u32 drop_rqn,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param,
+ const struct mlx5e_packet_merge_param *pkt_merge_param,
unsigned int init_nch)
{
bool multi_vhca = features & MLX5E_RX_RES_FEATURE_MULTI_VHCA;
@@ -454,7 +469,7 @@ mlx5e_rx_res_create(struct mlx5_core_dev *mdev, enum mlx5e_rx_res_features featu
res->max_nch = max_nch;
res->drop_rqn = drop_rqn;
- res->pkt_merge_param = *init_pkt_merge_param;
+ res->pkt_merge_param = *pkt_merge_param;
init_rwsem(&res->pkt_merge_param_sem);
err = mlx5e_rx_res_rss_init_def(res, init_nch);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h
index 1d049e2aa264..65a857c215e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h
@@ -27,7 +27,7 @@ enum mlx5e_rx_res_features {
struct mlx5e_rx_res *
mlx5e_rx_res_create(struct mlx5_core_dev *mdev, enum mlx5e_rx_res_features features,
unsigned int max_nch, u32 drop_rqn,
- const struct mlx5e_packet_merge_param *init_pkt_merge_param,
+ const struct mlx5e_packet_merge_param *pkt_merge_param,
unsigned int init_nch);
void mlx5e_rx_res_destroy(struct mlx5e_rx_res *res);
--
2.50.1 (Apple Git-155)
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