From patchwork Mon Jan 22 06:20:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 34212 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AC54B1B16F; Mon, 22 Jan 2018 07:20:53 +0100 (CET) Received: from rnd-relay.smtp.broadcom.com (rnd-relay.smtp.broadcom.com [192.19.229.170]) by dpdk.org (Postfix) with ESMTP id 652991B00B for ; Mon, 22 Jan 2018 07:20:51 +0100 (CET) Received: from nis-sj1-27.broadcom.com (nis-sj1-27.lvn.broadcom.net [10.75.144.136]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id 3577E30C03C for ; Sun, 21 Jan 2018 22:20:50 -0800 (PST) Received: from C02PT1RBG8WP.vpn.broadcom.net (unknown [10.10.117.80]) by nis-sj1-27.broadcom.com (Postfix) with ESMTP id 794AFAC078A for ; Sun, 21 Jan 2018 22:20:49 -0800 (PST) From: Ajit Khaparde To: dev@dpdk.org Date: Sun, 21 Jan 2018 22:20:42 -0800 Message-Id: <20180122062046.81908-2-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.14.3 (Apple Git-98) In-Reply-To: <20180122062046.81908-1-ajit.khaparde@broadcom.com> References: <20180122062046.81908-1-ajit.khaparde@broadcom.com> Subject: [dpdk-dev] [PATCH 1/5] net/bnxt: fix size of tx ring in HW 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" During Tx ring allocation, the actual ring size configured in the HW ends up being twice the number of txd parameter specified to the driver. The power of 2 ring size wrongly adds a +1 while sending the ring create command to the FW. Fixes: 6eb3cc2294fd ("net/bnxt: add initial Tx code") Signed-off-by: Ajit Khaparde --- drivers/net/bnxt/bnxt_txr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/bnxt/bnxt_txr.c b/drivers/net/bnxt/bnxt_txr.c index ac77434b7..2f2c87119 100644 --- a/drivers/net/bnxt/bnxt_txr.c +++ b/drivers/net/bnxt/bnxt_txr.c @@ -101,7 +101,7 @@ int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id) if (ring == NULL) return -ENOMEM; txr->tx_ring_struct = ring; - ring->ring_size = rte_align32pow2(txq->nb_tx_desc + 1); + ring->ring_size = rte_align32pow2(txq->nb_tx_desc); ring->ring_mask = ring->ring_size - 1; ring->bd = (void *)txr->tx_desc_ring; ring->bd_dma = txr->tx_desc_mapping;