From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 5B589A04A2; Thu, 3 Mar 2022 02:53:55 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1F05A40141; Thu, 3 Mar 2022 02:53:55 +0100 (CET) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id EF40740041 for ; Thu, 3 Mar 2022 02:53:52 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3DDCA1480; Wed, 2 Mar 2022 17:53:52 -0800 (PST) Received: from net-arm-n1amp-02.shanghai.arm.com (net-arm-n1amp-02.shanghai.arm.com [10.169.210.142]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 626D93F73D; Wed, 2 Mar 2022 17:53:49 -0800 (PST) From: Feifei Wang To: Beilei Xing , David Christensen , Bruce Richardson , Konstantin Ananyev , Ruifeng Wang Cc: dev@dpdk.org, nd@arm.com, Feifei Wang , Honnappa Nagarahalli Subject: [PATCH v1] net/i40e: remove redundant number of packets check Date: Thu, 3 Mar 2022 01:53:43 +0000 Message-Id: <20220303015343.1755326-1-feifei.wang2@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org For i40e_xmit_pkts_vec_xx function, it checks nb_pkts to ensure nb_pkts does not cross rs_thresh. However, in i40e_xmit_fixed_burst_vec_xx function, this check will be performed again. To improve code, delete this redundant check. Suggested-by: Honnappa Nagarahalli Signed-off-by: Feifei Wang Reviewed-by: Ruifeng Wang --- drivers/net/i40e/i40e_rxtx.c | 1 + drivers/net/i40e/i40e_rxtx_vec_altivec.c | 3 --- drivers/net/i40e/i40e_rxtx_vec_avx2.c | 4 +--- drivers/net/i40e/i40e_rxtx_vec_avx512.c | 4 +--- drivers/net/i40e/i40e_rxtx_vec_neon.c | 3 --- drivers/net/i40e/i40e_rxtx_vec_sse.c | 3 --- 6 files changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 25a28ecea2..788ffb51c2 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -1523,6 +1523,7 @@ i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, while (nb_pkts) { uint16_t ret, num; + /* cross rs_thresh boundary is not allowed */ num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh); ret = i40e_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx], num); diff --git a/drivers/net/i40e/i40e_rxtx_vec_altivec.c b/drivers/net/i40e/i40e_rxtx_vec_altivec.c index f78ba994f7..825834c5cd 100644 --- a/drivers/net/i40e/i40e_rxtx_vec_altivec.c +++ b/drivers/net/i40e/i40e_rxtx_vec_altivec.c @@ -560,9 +560,6 @@ i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts, uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD; int i; - /* cross rx_thresh boundary is not allowed */ - nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh); - if (txq->nb_tx_free < txq->tx_free_thresh) i40e_tx_free_bufs(txq); diff --git a/drivers/net/i40e/i40e_rxtx_vec_avx2.c b/drivers/net/i40e/i40e_rxtx_vec_avx2.c index c73b2a321b..761edb9d20 100644 --- a/drivers/net/i40e/i40e_rxtx_vec_avx2.c +++ b/drivers/net/i40e/i40e_rxtx_vec_avx2.c @@ -766,9 +766,6 @@ i40e_xmit_fixed_burst_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, uint64_t flags = I40E_TD_CMD; uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD; - /* cross rx_thresh boundary is not allowed */ - nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh); - if (txq->nb_tx_free < txq->tx_free_thresh) i40e_tx_free_bufs(txq); @@ -832,6 +829,7 @@ i40e_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, while (nb_pkts) { uint16_t ret, num; + /* cross rs_thresh boundary is not allowed */ num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh); ret = i40e_xmit_fixed_burst_vec_avx2(tx_queue, &tx_pkts[nb_tx], num); diff --git a/drivers/net/i40e/i40e_rxtx_vec_avx512.c b/drivers/net/i40e/i40e_rxtx_vec_avx512.c index 2e8a3f0df6..60c97d5331 100644 --- a/drivers/net/i40e/i40e_rxtx_vec_avx512.c +++ b/drivers/net/i40e/i40e_rxtx_vec_avx512.c @@ -1060,9 +1060,6 @@ i40e_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts, uint64_t flags = I40E_TD_CMD; uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD; - /* cross rx_thresh boundary is not allowed */ - nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh); - if (txq->nb_tx_free < txq->tx_free_thresh) i40e_tx_free_bufs_avx512(txq); @@ -1127,6 +1124,7 @@ i40e_xmit_pkts_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts, while (nb_pkts) { uint16_t ret, num; + /* cross rs_thresh boundary is not allowed */ num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh); ret = i40e_xmit_fixed_burst_vec_avx512 (tx_queue, &tx_pkts[nb_tx], num); diff --git a/drivers/net/i40e/i40e_rxtx_vec_neon.c b/drivers/net/i40e/i40e_rxtx_vec_neon.c index 6433f9d051..be2d8d08ca 100644 --- a/drivers/net/i40e/i40e_rxtx_vec_neon.c +++ b/drivers/net/i40e/i40e_rxtx_vec_neon.c @@ -682,9 +682,6 @@ i40e_xmit_fixed_burst_vec(void *__rte_restrict tx_queue, uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD; int i; - /* cross rx_thresh boundary is not allowed */ - nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh); - if (txq->nb_tx_free < txq->tx_free_thresh) i40e_tx_free_bufs(txq); diff --git a/drivers/net/i40e/i40e_rxtx_vec_sse.c b/drivers/net/i40e/i40e_rxtx_vec_sse.c index 3782e8052f..bdc979a839 100644 --- a/drivers/net/i40e/i40e_rxtx_vec_sse.c +++ b/drivers/net/i40e/i40e_rxtx_vec_sse.c @@ -709,9 +709,6 @@ i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts, uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD; int i; - /* cross rx_thresh boundary is not allowed */ - nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh); - if (txq->nb_tx_free < txq->tx_free_thresh) i40e_tx_free_bufs(txq); -- 2.25.1