From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 76349A04A2 for ; Tue, 5 Nov 2019 15:39:57 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 78DC11BF41; Tue, 5 Nov 2019 15:39:54 +0100 (CET) Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by dpdk.org (Postfix) with ESMTP id 22F9F1BF33; Tue, 5 Nov 2019 15:39:51 +0100 (CET) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 043042006DB; Tue, 5 Nov 2019 15:39:51 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 0BA43200528; Tue, 5 Nov 2019 15:39:47 +0100 (CET) Received: from GDB1.ap.freescale.net (gdb1.ap.freescale.net [10.232.132.179]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 4AA80402FC; Tue, 5 Nov 2019 22:39:40 +0800 (SGT) From: Nipun Gupta To: dev@dpdk.org Cc: thomas@monjalon.net, ferruh.yigit@intel.com, hemant.agrawal@nxp.com, sachin.saxena@nxp.com, stable@dpdk.org, Nipun Gupta , Radu Bulie Date: Tue, 5 Nov 2019 19:53:16 +0530 Message-Id: <20191105142321.7478-5-nipun.gupta@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191105142321.7478-1-nipun.gupta@nxp.com> References: <20191011054657.21931-1-nipun.gupta@nxp.com> <20191105142321.7478-1-nipun.gupta@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Subject: [dpdk-stable] [PATCH 4/9 v4] net/dpaa2: add retry and timeout in packet enqueue API X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" In the packet transmit, if the QBMAN is not able to process the packets, the Tx function loops infinitely to send the packet out. This patch changes the logic retry for some time (count) and then return. Fixes: cd9935cec873 ("net/dpaa2: enable Rx and Tx operations") Fixes: 16c4a3c46ab7 ("bus/fslmc: add enqueue response read in qbman") Cc: stable@dpdk.org Signed-off-by: Nipun Gupta Signed-off-by: Radu Bulie --- drivers/bus/fslmc/portal/dpaa2_hw_pvt.h | 2 + drivers/net/dpaa2/dpaa2_rxtx.c | 72 ++++++++++++++++++++----- 2 files changed, 60 insertions(+), 14 deletions(-) diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h index db6dad544..4ed82f574 100644 --- a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h +++ b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h @@ -59,6 +59,8 @@ #define DPAA2_SWP_CINH_REGION 1 #define DPAA2_SWP_CENA_MEM_REGION 2 +#define DPAA2_MAX_TX_RETRY_COUNT 10000 + #define MC_PORTAL_INDEX 0 #define NUM_DPIO_REGIONS 2 #define NUM_DQS_PER_QUEUE 2 diff --git a/drivers/net/dpaa2/dpaa2_rxtx.c b/drivers/net/dpaa2/dpaa2_rxtx.c index b7b2d8652..52d913d9e 100644 --- a/drivers/net/dpaa2/dpaa2_rxtx.c +++ b/drivers/net/dpaa2/dpaa2_rxtx.c @@ -1135,15 +1135,28 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) #endif bufs++; } + loop = 0; + retry_count = 0; while (loop < frames_to_send) { - loop += qbman_swp_enqueue_multiple(swp, &eqdesc, + ret = qbman_swp_enqueue_multiple(swp, &eqdesc, &fd_arr[loop], &flags[loop], frames_to_send - loop); + if (unlikely(ret < 0)) { + retry_count++; + if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) { + num_tx += loop; + nb_pkts -= loop; + goto send_n_return; + } + } else { + loop += ret; + retry_count = 0; + } } - num_tx += frames_to_send; - nb_pkts -= frames_to_send; + num_tx += loop; + nb_pkts -= loop; } dpaa2_q->tx_pkts += num_tx; return num_tx; @@ -1153,13 +1166,22 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) if (loop) { unsigned int i = 0; + retry_count = 0; while (i < loop) { - i += qbman_swp_enqueue_multiple(swp, &eqdesc, - &fd_arr[i], - &flags[loop], - loop - i); + ret = qbman_swp_enqueue_multiple(swp, &eqdesc, + &fd_arr[i], + &flags[i], + loop - i); + if (unlikely(ret < 0)) { + retry_count++; + if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) + break; + } else { + i += ret; + retry_count = 0; + } } - num_tx += loop; + num_tx += i; } skip_tx: dpaa2_q->tx_pkts += num_tx; @@ -1365,15 +1387,28 @@ dpaa2_dev_tx_ordered(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) } bufs++; } + loop = 0; + retry_count = 0; while (loop < frames_to_send) { - loop += qbman_swp_enqueue_multiple_desc(swp, + ret = qbman_swp_enqueue_multiple_desc(swp, &eqdesc[loop], &fd_arr[loop], frames_to_send - loop); + if (unlikely(ret < 0)) { + retry_count++; + if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) { + num_tx += loop; + nb_pkts -= loop; + goto send_n_return; + } + } else { + loop += ret; + retry_count = 0; + } } - num_tx += frames_to_send; - nb_pkts -= frames_to_send; + num_tx += loop; + nb_pkts -= loop; } dpaa2_q->tx_pkts += num_tx; return num_tx; @@ -1383,11 +1418,20 @@ dpaa2_dev_tx_ordered(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) if (loop) { unsigned int i = 0; + retry_count = 0; while (i < loop) { - i += qbman_swp_enqueue_multiple_desc(swp, &eqdesc[loop], - &fd_arr[i], loop - i); + ret = qbman_swp_enqueue_multiple_desc(swp, + &eqdesc[loop], &fd_arr[i], loop - i); + if (unlikely(ret < 0)) { + retry_count++; + if (retry_count > DPAA2_MAX_TX_RETRY_COUNT) + break; + } else { + i += ret; + retry_count = 0; + } } - num_tx += loop; + num_tx += i; } skip_tx: dpaa2_q->tx_pkts += num_tx; -- 2.17.1