netdev - [net-next V2 07/14] net/mlx5: DR, Handle domain memory resources init/uninit separately

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Date:   Thu, 27 Oct 2022 15:56:36 +0100
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>,
        Yevgeny Kliteynik <kliteyn@...dia.com>,
        Alex Vesker <valex@...dia.com>
Subject: [net-next V2 07/14] net/mlx5: DR, Handle domain memory resources init/uninit separately

From: Yevgeny Kliteynik <kliteyn@...dia.com>

Handle creation/destruction of all the domain's memory pools and other
memory-related fields in a separate init/uninit functions.
This simplifies error flow and allows cleaner addition of new pools.

Signed-off-by: Yevgeny Kliteynik <kliteyn@...dia.com>
Reviewed-by: Alex Vesker <valex@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../mellanox/mlx5/core/steering/dr_domain.c   | 55 +++++++++++++------
 1 file changed, 37 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
index fc6ae49b5ecc..543d655ae3b6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
@@ -56,6 +56,36 @@ int mlx5dr_domain_get_recalc_cs_ft_addr(struct mlx5dr_domain *dmn,
 	return 0;
 }
 
+static int dr_domain_init_mem_resources(struct mlx5dr_domain *dmn)
+{
+	int ret;
+
+	dmn->ste_icm_pool = mlx5dr_icm_pool_create(dmn, DR_ICM_TYPE_STE);
+	if (!dmn->ste_icm_pool) {
+		mlx5dr_err(dmn, "Couldn't get icm memory\n");
+		return -ENOMEM;
+	}
+
+	dmn->action_icm_pool = mlx5dr_icm_pool_create(dmn, DR_ICM_TYPE_MODIFY_ACTION);
+	if (!dmn->action_icm_pool) {
+		mlx5dr_err(dmn, "Couldn't get action icm memory\n");
+		ret = -ENOMEM;
+		goto free_ste_icm_pool;
+	}
+
+	return 0;
+
+free_ste_icm_pool:
+	mlx5dr_icm_pool_destroy(dmn->ste_icm_pool);
+	return ret;
+}
+
+static void dr_domain_uninit_mem_resources(struct mlx5dr_domain *dmn)
+{
+	mlx5dr_icm_pool_destroy(dmn->action_icm_pool);
+	mlx5dr_icm_pool_destroy(dmn->ste_icm_pool);
+}
+
 static int dr_domain_init_resources(struct mlx5dr_domain *dmn)
 {
 	int ret;
@@ -79,32 +109,22 @@ static int dr_domain_init_resources(struct mlx5dr_domain *dmn)
 		goto clean_pd;
 	}
 
-	dmn->ste_icm_pool = mlx5dr_icm_pool_create(dmn, DR_ICM_TYPE_STE);
-	if (!dmn->ste_icm_pool) {
-		mlx5dr_err(dmn, "Couldn't get icm memory\n");
-		ret = -ENOMEM;
+	ret = dr_domain_init_mem_resources(dmn);
+	if (ret) {
+		mlx5dr_err(dmn, "Couldn't create domain memory resources\n");
 		goto clean_uar;
 	}
 
-	dmn->action_icm_pool = mlx5dr_icm_pool_create(dmn, DR_ICM_TYPE_MODIFY_ACTION);
-	if (!dmn->action_icm_pool) {
-		mlx5dr_err(dmn, "Couldn't get action icm memory\n");
-		ret = -ENOMEM;
-		goto free_ste_icm_pool;
-	}
-
 	ret = mlx5dr_send_ring_alloc(dmn);
 	if (ret) {
 		mlx5dr_err(dmn, "Couldn't create send-ring\n");
-		goto free_action_icm_pool;
+		goto clean_mem_resources;
 	}
 
 	return 0;
 
-free_action_icm_pool:
-	mlx5dr_icm_pool_destroy(dmn->action_icm_pool);
-free_ste_icm_pool:
-	mlx5dr_icm_pool_destroy(dmn->ste_icm_pool);
+clean_mem_resources:
+	dr_domain_uninit_mem_resources(dmn);
 clean_uar:
 	mlx5_put_uars_page(dmn->mdev, dmn->uar);
 clean_pd:
@@ -116,8 +136,7 @@ static int dr_domain_init_resources(struct mlx5dr_domain *dmn)
 static void dr_domain_uninit_resources(struct mlx5dr_domain *dmn)
 {
 	mlx5dr_send_ring_free(dmn, dmn->send_ring);
-	mlx5dr_icm_pool_destroy(dmn->action_icm_pool);
-	mlx5dr_icm_pool_destroy(dmn->ste_icm_pool);
+	dr_domain_uninit_mem_resources(dmn);
 	mlx5_put_uars_page(dmn->mdev, dmn->uar);
 	mlx5_core_dealloc_pd(dmn->mdev, dmn->pdn);
 }
-- 
2.37.3