From patchwork Mon Sep 18 15:17:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 28866 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 F05CC1B21D; Mon, 18 Sep 2017 17:18:33 +0200 (CEST) Received: from rnd-relay.smtp.broadcom.com (lpdvrndsmtp01.broadcom.com [192.19.229.170]) by dpdk.org (Postfix) with ESMTP id C09011B1C4 for ; Mon, 18 Sep 2017 17:18:17 +0200 (CEST) Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.224.233]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id C6A4730C02A; Mon, 18 Sep 2017 08:18:16 -0700 (PDT) Received: from C02PT1RBG8WP.wifi.broadcom.net (c02pt1rbg8wp.wifi.broadcom.net [10.45.51.51]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id 81BFD81EAE; Mon, 18 Sep 2017 08:18:16 -0700 (PDT) From: Ajit Khaparde To: dev@dpdk.org Cc: ferruh.yigit@intel.com Date: Mon, 18 Sep 2017 10:17:51 -0500 Message-Id: <20170918151755.86605-16-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20170918151755.86605-1-ajit.khaparde@broadcom.com> References: <20170918151755.86605-1-ajit.khaparde@broadcom.com> Subject: [dpdk-dev] [PATCH v2 15/19] net/bnxt: add support for rx_descriptor_status 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" add support for rx_descriptor_status dev_op Signed-off-by: Ajit Khaparde --- v1->v2: incorporate review comments. --- doc/guides/nics/features/bnxt.ini | 1 + drivers/net/bnxt/bnxt_ethdev.c | 39 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/doc/guides/nics/features/bnxt.ini b/doc/guides/nics/features/bnxt.ini index 119132e..e0af1df 100644 --- a/doc/guides/nics/features/bnxt.ini +++ b/doc/guides/nics/features/bnxt.ini @@ -21,6 +21,7 @@ Basic stats = Y Extended stats = Y FW version = Y LED = Y +Rx descriptor status = Y Linux UIO = Y Linux VFIO = Y x86-64 = Y diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index b2272c2..140db0e 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -1567,6 +1567,44 @@ bnxt_rx_queue_count_op(struct rte_eth_dev *dev, uint16_t rx_queue_id) return desc; } +static int +bnxt_rx_descriptor_status_op(void *rx_queue, uint16_t offset) +{ + struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue; + struct bnxt_rx_ring_info *rxr; + struct bnxt_cp_ring_info *cpr; + struct bnxt_sw_rx_bd *rx_buf; + struct rx_pkt_cmpl *rxcmp; + uint32_t cons, cp_cons; + + if (!rxq) + return -EINVAL; + + cpr = rxq->cp_ring; + rxr = rxq->rx_ring; + + if (offset >= rxq->nb_rx_desc) + return -EINVAL; + + cons = RING_CMP(cpr->cp_ring_struct, offset); + cp_cons = cpr->cp_raw_cons; + rxcmp = (struct rx_pkt_cmpl *)&cpr->cp_desc_ring[cons]; + + if (cons > cp_cons) { + if (CMPL_VALID(rxcmp, cpr->valid)) + return RTE_ETH_RX_DESC_DONE; + } else { + if (CMPL_VALID(rxcmp, !cpr->valid)) + return RTE_ETH_RX_DESC_DONE; + } + rx_buf = &rxr->rx_buf_ring[cons]; + if (rx_buf->mbuf == NULL) + return RTE_ETH_RX_DESC_UNAVAIL; + + + return RTE_ETH_RX_DESC_AVAIL; +} + /* * Initialization */ @@ -1617,6 +1655,7 @@ static const struct eth_dev_ops bnxt_dev_ops = { .xstats_get_by_id = bnxt_dev_xstats_get_by_id_op, .xstats_get_names_by_id = bnxt_dev_xstats_get_names_by_id_op, .rx_queue_count = bnxt_rx_queue_count_op, + .rx_descriptor_status = bnxt_rx_descriptor_status_op, }; static bool bnxt_vf_pciid(uint16_t id)