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From: Suanming Mou <suanmingm@mellanox.com>
To: luca.boccassi@gmail.com
Cc: stable@dpdk.org
Subject: [dpdk-stable] [PATCH 19.11 03/11] net/mlx5: support maximum flow id allocation
Date: Fri, 28 Feb 2020 11:33:47 +0800
Message-ID: <1582860835-282594-4-git-send-email-suanmingm@mellanox.com> (raw)
In-Reply-To: <1582860835-282594-1-git-send-email-suanmingm@mellanox.com>

[ upstream commit 30a3687d99f17fa821a7aa933b5c738bf6885c30 ]

The id allocated is for the register unique id match. Some registers may
not use the full 32 bits. Add the maximum id to avoid allocate id over
the register restriction.

Signed-off-by: Suanming Mou <suanmingm@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
 drivers/net/mlx5/mlx5.c      | 12 ++++++++----
 drivers/net/mlx5/mlx5.h      |  1 +
 drivers/net/mlx5/mlx5_flow.h |  2 +-
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 5111057..7493e64 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -196,11 +196,14 @@ struct mlx5_dev_spawn_data {
 /**
  * Allocate ID pool structure.
  *
+ * @param[in] max_id
+ *   The maximum id can be allocated from the pool.
+ *
  * @return
  *   Pointer to pool object, NULL value otherwise.
  */
 struct mlx5_flow_id_pool *
-mlx5_flow_id_pool_alloc(void)
+mlx5_flow_id_pool_alloc(uint32_t max_id)
 {
 	struct mlx5_flow_id_pool *pool;
 	void *mem;
@@ -223,6 +226,7 @@ struct mlx5_flow_id_pool *
 	pool->curr = pool->free_arr;
 	pool->last = pool->free_arr + MLX5_FLOW_MIN_ID_POOL_SIZE;
 	pool->base_index = 0;
+	pool->max_id = max_id;
 	return pool;
 error:
 	rte_free(pool);
@@ -257,7 +261,7 @@ struct mlx5_flow_id_pool *
 mlx5_flow_id_get(struct mlx5_flow_id_pool *pool, uint32_t *id)
 {
 	if (pool->curr == pool->free_arr) {
-		if (pool->base_index == UINT32_MAX) {
+		if (pool->base_index == pool->max_id) {
 			rte_errno  = ENOMEM;
 			DRV_LOG(ERR, "no free id");
 			return -rte_errno;
@@ -590,7 +594,7 @@ struct mlx5_flow_id_pool *
 			goto error;
 		}
 	}
-	sh->flow_id_pool = mlx5_flow_id_pool_alloc();
+	sh->flow_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX);
 	if (!sh->flow_id_pool) {
 		DRV_LOG(ERR, "can't create flow id pool");
 		err = ENOMEM;
@@ -2680,7 +2684,7 @@ struct mlx5_flow_id_pool *
 		err = mlx5_alloc_shared_dr(priv);
 		if (err)
 			goto error;
-		priv->qrss_id_pool = mlx5_flow_id_pool_alloc();
+		priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX);
 		if (!priv->qrss_id_pool) {
 			DRV_LOG(ERR, "can't create flow id pool");
 			err = ENOMEM;
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 7a7c1d1..a40ec51 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -626,6 +626,7 @@ struct mlx5_flow_id_pool {
 	/**< The next index that can be used without any free elements. */
 	uint32_t *curr; /**< Pointer to the index to pop. */
 	uint32_t *last; /**< Pointer to the last element in the empty arrray. */
+	uint32_t max_id; /**< Maximum id can be allocated from the pool. */
 };
 
 /*
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 0da1b5e..91594d2 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -746,7 +746,7 @@ struct mlx5_flow_driver_ops {
 
 /* mlx5_flow.c */
 
-struct mlx5_flow_id_pool *mlx5_flow_id_pool_alloc(void);
+struct mlx5_flow_id_pool *mlx5_flow_id_pool_alloc(uint32_t max_id);
 void mlx5_flow_id_pool_release(struct mlx5_flow_id_pool *pool);
 uint32_t mlx5_flow_id_get(struct mlx5_flow_id_pool *pool, uint32_t *id);
 uint32_t mlx5_flow_id_release(struct mlx5_flow_id_pool *pool,
-- 
1.8.3.1


  parent reply	other threads:[~2020-02-28  3:34 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-28  3:33 [dpdk-stable] [PATCH 19.11 00/11] net/mlx5: fix patch backport Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 01/11] net/mlx5: unify validation of drop action Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 02/11] net/mlx5: update description of validation functions Suanming Mou
2020-02-28  3:33 ` Suanming Mou [this message]
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 04/11] net/mlx5: fix register usage in meter Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 05/11] net/mlx5: fix encap/decap validation Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 06/11] net/mlx5: fix layer validation with decapsulation Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 07/11] net/mlx5: fix layer type in header modify action Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 08/11] net/mlx5: fix layer flags missing in metadata Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 09/11] net/mlx5: fix match information in meter Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 10/11] net/mlx5: fix VLAN actions " Suanming Mou
2020-02-28  3:33 ` [dpdk-stable] [PATCH 19.11 11/11] net/mlx5: fix metadata split with encap action Suanming Mou
2020-02-28 11:17 ` [dpdk-stable] [PATCH 19.11 00/11] net/mlx5: fix patch backport Luca Boccassi

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