From: "Wei Hu (Xavier)" <huwei013@chinasoftinc.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH 05/11] net/hns3: add free thresh in Rx operation
Date: Thu, 9 Jan 2020 11:15:53 +0800 [thread overview]
Message-ID: <20200109031559.63194-6-huwei013@chinasoftinc.com> (raw)
In-Reply-To: <20200109031559.63194-1-huwei013@chinasoftinc.com>
From: "Wei Hu (Xavier)" <xavier.huwei@huawei.com>
This patch optimizes the Rx performance by adding the rx_free_thresh
related process in the '.rx_pkt_burst' ops implementation function named
hns3_recv_pkts. The related change as follows:
1. Adding the rx_free_thresh related process to reduce the number of
writing the HNS3_RING_RX_HEAD_REG register.
2. Adjusting the internal macro named DEFAULT_RX_FREE_THRESH to 32 and
adjusting HNS3_MIN_RING_DESC to 64 to make the effect of the thresh
more obvious.
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
---
drivers/net/hns3/hns3_rxtx.c | 12 ++++++++++--
drivers/net/hns3/hns3_rxtx.h | 2 +-
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index a1655e246..6f74a7917 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -30,7 +30,7 @@
#include "hns3_logs.h"
#define HNS3_CFG_DESC_NUM(num) ((num) / 8 - 1)
-#define DEFAULT_RX_FREE_THRESH 16
+#define DEFAULT_RX_FREE_THRESH 32
static void
hns3_rx_queue_release_mbufs(struct hns3_rx_queue *rxq)
@@ -558,6 +558,7 @@ hns3_dev_rx_queue_start(struct hns3_adapter *hns, uint16_t idx)
rxq->next_to_use = 0;
rxq->next_to_clean = 0;
+ rxq->nb_rx_hold = 0;
hns3_init_rx_queue_hw(rxq);
return 0;
@@ -572,6 +573,7 @@ hns3_fake_rx_queue_start(struct hns3_adapter *hns, uint16_t idx)
rxq = (struct hns3_rx_queue *)hw->fkq_data.rx_queues[idx];
rxq->next_to_use = 0;
rxq->next_to_clean = 0;
+ rxq->nb_rx_hold = 0;
hns3_init_rx_queue_hw(rxq);
}
@@ -1525,7 +1527,13 @@ hns3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
rxq->next_to_clean = rx_id;
rxq->pkt_first_seg = first_seg;
rxq->pkt_last_seg = last_seg;
- hns3_clean_rx_buffers(rxq, nb_rx_bd);
+
+ nb_rx_bd = nb_rx_bd + rxq->nb_rx_hold;
+ if (nb_rx_bd > rxq->rx_free_thresh) {
+ hns3_clean_rx_buffers(rxq, nb_rx_bd);
+ nb_rx_bd = 0;
+ }
+ rxq->nb_rx_hold = nb_rx_bd;
return nb_rx;
}
diff --git a/drivers/net/hns3/hns3_rxtx.h b/drivers/net/hns3/hns3_rxtx.h
index 943c6d8bb..1c2723ffb 100644
--- a/drivers/net/hns3/hns3_rxtx.h
+++ b/drivers/net/hns3/hns3_rxtx.h
@@ -5,7 +5,7 @@
#ifndef _HNS3_RXTX_H_
#define _HNS3_RXTX_H_
-#define HNS3_MIN_RING_DESC 32
+#define HNS3_MIN_RING_DESC 64
#define HNS3_MAX_RING_DESC 32768
#define HNS3_DEFAULT_RING_DESC 1024
#define HNS3_ALIGN_RING_DESC 32
--
2.23.0
next prev parent reply other threads:[~2020-01-09 3:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 3:15 [dpdk-dev] [PATCH 00/11] misc updates and fixes for hns3 PMD driver Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 01/11] net/hns3: support different numbered Rx and Tx queues Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 02/11] net/hns3: support setting VF MAC address by PF driver Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 03/11] net/hns3: reduce the judgements of free Tx ring space Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 04/11] net/hns3: remove io rmb call in Rx operation Wei Hu (Xavier)
2020-01-09 3:15 ` Wei Hu (Xavier) [this message]
2020-01-09 3:15 ` [dpdk-dev] [PATCH 06/11] net/hns3: fix Rx queue search miss RAS err when recv BC pkt Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 07/11] net/hns3: fix segment error when closing the port Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 08/11] net/hns3: fix ring vector related mailbox command format Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 09/11] net/hns3: fix dumping VF register information Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 10/11] net/hns3: fix link status when failure in issuing command Wei Hu (Xavier)
2020-01-09 3:15 ` [dpdk-dev] [PATCH 11/11] net/hns3: fix triggering reset proceduce in slave process Wei Hu (Xavier)
2020-01-14 14:33 ` [dpdk-dev] [PATCH 00/11] misc updates and fixes for hns3 PMD driver Ferruh Yigit
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