patches for DPDK stable branches
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From: Dongdong Liu <liudongdong3@huawei.com>
To: <dev@dpdk.org>, <andrew.rybchenko@oktetlabs.ru>,
	<ferruh.yigit@xilinx.com>, <thomas@monjalon.net>,
	<liudongdong3@huawei.com>, <lihuisong@huawei.com>,
	<haijie1@huawei.com>
Cc: <stable@dpdk.org>, <fengchengwen@huawei.com>,
	<yisen.zhuang@huawei.com>, <humin29@huawei.com>
Subject: [PATCH RESEND 09/13] net/hns3: optimize SVE xmit performance
Date: Mon, 5 Sep 2022 16:59:35 +0800	[thread overview]
Message-ID: <20220905085939.22236-10-liudongdong3@huawei.com> (raw)
In-Reply-To: <20220905085939.22236-1-liudongdong3@huawei.com>

From: Chengwen Feng <fengchengwen@huawei.com>

This patch optimize SVE xmit algorithm performance, will get about 1%+
performance gain under 64B macfwd.

Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
 drivers/net/hns3/hns3_rxtx_vec_sve.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/net/hns3/hns3_rxtx_vec_sve.c b/drivers/net/hns3/hns3_rxtx_vec_sve.c
index f09a81dbd5..6f23ba674d 100644
--- a/drivers/net/hns3/hns3_rxtx_vec_sve.c
+++ b/drivers/net/hns3/hns3_rxtx_vec_sve.c
@@ -389,10 +389,12 @@ hns3_tx_fill_hw_ring_sve(struct hns3_tx_queue *txq,
 				   HNS3_UINT32_BIT;
 	svuint64_t base_addr, buf_iova, data_off, data_len, addr;
 	svuint64_t offsets = svindex_u64(0, BD_SIZE);
-	uint32_t i = 0;
-	svbool_t pg = svwhilelt_b64_u32(i, nb_pkts);
+	uint32_t cnt = svcntd();
+	svbool_t pg;
+	uint32_t i;
 
-	do {
+	for (i = 0; i < nb_pkts; /* i is updated in the inner loop */) {
+		pg = svwhilelt_b64_u32(i, nb_pkts);
 		base_addr = svld1_u64(pg, (uint64_t *)pkts);
 		/* calc mbuf's field buf_iova address */
 		buf_iova = svadd_n_u64_z(pg, base_addr,
@@ -439,12 +441,11 @@ hns3_tx_fill_hw_ring_sve(struct hns3_tx_queue *txq,
 			(svaddv_u64(pg, data_len) >> HNS3_UINT16_BIT);
 
 		/* update index for next loop */
-		i += svcntd();
-		pkts += svcntd();
-		txdp += svcntd();
-		tx_entry += svcntd();
-		pg = svwhilelt_b64_u32(i, nb_pkts);
-	} while (svptest_any(svptrue_b64(), pg));
+		i += cnt;
+		pkts += cnt;
+		txdp += cnt;
+		tx_entry += cnt;
+	}
 }
 
 static uint16_t
-- 
2.22.0


  parent reply	other threads:[~2022-09-05  9:01 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-05  8:59 [PATCH RESEND 00/13] some bugfixes and clean code for hns3 Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 01/13] net/hns3: rename hns3 dump file Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 02/13] net/hns3: fix code check warning Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 03/13] net/hns3: adjust code for dump file Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 04/13] net/hns3: add dump of VF vlan filter modify capability Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 05/13] net/hns3: fix fail to receive PTP packet Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 06/13] net/hns3: fix segment fault when using SVE xmit Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 07/13] net/hns3: fix next-to-use overflow " Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 08/13] net/hns3: fix next-to-use overflow when using simple xmit Dongdong Liu
2022-09-05  8:59 ` Dongdong Liu [this message]
2022-09-05  8:59 ` [PATCH RESEND 10/13] net/hns3: fix segment fault when secondary process access FW Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 11/13] net/hns3: delete rte unused tag Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 12/13] net/hns3: fix uncleared hardware MAC statistics Dongdong Liu
2022-09-05  8:59 ` [PATCH RESEND 13/13] net/hns3: revert optimize Tx performance Dongdong Liu
2022-09-17  1:14 ` [PATCH RESEND 00/13] some bugfixes and clean code for hns3 Dongdong Liu
2022-09-28 12:03 ` Dongdong Liu
2022-10-04 16:00 ` Andrew Rybchenko

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