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Message-Id: <20230131031201.35336-15-saeed@kernel.org>
Date: Mon, 30 Jan 2023 19:12:00 -0800
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>,
Jianbo Liu <jianbol@...dia.com>
Subject: [net-next 14/15] net/mlx5: Keep only one bulk of full available DEKs
From: Jianbo Liu <jianbol@...dia.com>
One bulk with full available keys is left undestroyed, to service the
possible requests from users quickly.
Signed-off-by: Jianbo Liu <jianbol@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../ethernet/mellanox/mlx5/core/lib/crypto.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c
index e078530ef37d..3a94b8f8031e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c
@@ -506,12 +506,19 @@ static void mlx5_crypto_dek_bulk_reset_synced(struct mlx5_crypto_dek_pool *pool,
}
}
-static void mlx5_crypto_dek_bulk_handle_avail(struct mlx5_crypto_dek_pool *pool,
+/* Return true if the bulk is reused, false if destroyed with delay */
+static bool mlx5_crypto_dek_bulk_handle_avail(struct mlx5_crypto_dek_pool *pool,
struct mlx5_crypto_dek_bulk *bulk,
struct list_head *destroy_list)
{
+ if (list_empty(&pool->avail_list)) {
+ list_move(&bulk->entry, &pool->avail_list);
+ return true;
+ }
+
mlx5_crypto_dek_pool_remove_bulk(pool, bulk, true);
list_add(&bulk->entry, destroy_list);
+ return false;
}
static void mlx5_crypto_dek_pool_splice_destroy_list(struct mlx5_crypto_dek_pool *pool,
@@ -535,7 +542,7 @@ static void mlx5_crypto_dek_pool_free_wait_keys(struct mlx5_crypto_dek_pool *poo
/* For all the bulks in each list, reset the bits while sync.
* Move them to different lists according to the number of available DEKs.
- * Destrory all the idle bulks for now.
+ * Destrory all the idle bulks, except one for quick service.
* And free DEKs in the waiting list at the end of this func.
*/
static void mlx5_crypto_dek_pool_reset_synced(struct mlx5_crypto_dek_pool *pool)
@@ -562,11 +569,12 @@ static void mlx5_crypto_dek_pool_reset_synced(struct mlx5_crypto_dek_pool *pool)
}
list_for_each_entry_safe(bulk, tmp, &pool->sync_list, entry) {
- memset(bulk->need_sync, 0, BITS_TO_BYTES(bulk->num_deks));
- bulk->avail_start = 0;
bulk->avail_deks = bulk->num_deks;
pool->avail_deks += bulk->num_deks;
- mlx5_crypto_dek_bulk_handle_avail(pool, bulk, &destroy_list);
+ if (mlx5_crypto_dek_bulk_handle_avail(pool, bulk, &destroy_list)) {
+ memset(bulk->need_sync, 0, BITS_TO_BYTES(bulk->num_deks));
+ bulk->avail_start = 0;
+ }
}
mlx5_crypto_dek_pool_free_wait_keys(pool);
--
2.39.1
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