From patchwork Tue Oct 6 11:48:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suanming Mou X-Patchwork-Id: 79757 X-Patchwork-Delegate: rasland@nvidia.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 47B48A04BB; Tue, 6 Oct 2020 13:50:23 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 110981B222; Tue, 6 Oct 2020 13:49:26 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id A07C14C93 for ; Tue, 6 Oct 2020 13:49:24 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from suanmingm@nvidia.com) with SMTP; 6 Oct 2020 14:49:22 +0300 Received: from nvidia.com (mtbc-r640-04.mtbc.labs.mlnx [10.75.70.9]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 096BnC0O028553; Tue, 6 Oct 2020 14:49:20 +0300 From: Suanming Mou To: viacheslavo@nvidia.com, matan@nvidia.com Cc: rasland@nvidia.com, dev@dpdk.org, Xueming Li Date: Tue, 6 Oct 2020 19:48:47 +0800 Message-Id: <1601984948-313027-5-git-send-email-suanmingm@nvidia.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1601984948-313027-1-git-send-email-suanmingm@nvidia.com> References: <1601984948-313027-1-git-send-email-suanmingm@nvidia.com> Subject: [dpdk-dev] [PATCH 04/25] net/mlx5: indexed pool supports zero size entry X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Xueming Li To make indexed pool to be used as ID generator, this patch allows entry size to be zero. Signed-off-by: Xueming Li --- drivers/net/mlx5/mlx5_utils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5_utils.c b/drivers/net/mlx5/mlx5_utils.c index fefe833..0a75fa6 100644 --- a/drivers/net/mlx5/mlx5_utils.c +++ b/drivers/net/mlx5/mlx5_utils.c @@ -230,7 +230,7 @@ struct mlx5_indexed_pool * struct mlx5_indexed_pool *pool; uint32_t i; - if (!cfg || !cfg->size || (!cfg->malloc ^ !cfg->free) || + if (!cfg || (!cfg->malloc ^ !cfg->free) || (cfg->trunk_size && ((cfg->trunk_size & (cfg->trunk_size - 1)) || ((__builtin_ffs(cfg->trunk_size) + TRUNK_IDX_BITS) > 32)))) return NULL; @@ -391,7 +391,7 @@ struct mlx5_indexed_pool * { void *entry = mlx5_ipool_malloc(pool, idx); - if (entry) + if (entry && pool->cfg.size) memset(entry, 0, pool->cfg.size); return entry; }