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
next prev 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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