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From: Dekel Peled <dekelp@mellanox.com>
To: john.mcnamara@intel.com, marko.kovacevic@intel.com,
	nhorman@tuxdriver.com,  ajit.khaparde@broadcom.com,
	somnath.kotur@broadcom.com, anatoly.burakov@intel.com,
	xuanziyang2@huawei.com, cloud.wangxiaoyun@huawei.com,
	zhouguoyang@huawei.com, wenzhuo.lu@intel.com,
	konstantin.ananyev@intel.com, matan@mellanox.com,
	shahafs@mellanox.com, viacheslavo@mellanox.com,
	rmody@marvell.com, shshaikh@marvell.com,
	maxime.coquelin@redhat.com, tiwei.bie@intel.com,
	zhihong.wang@intel.com, yongwang@vmware.com, thomas@monjalon.net,
	ferruh.yigit@intel.com, arybchenko@solarflare.com,
	jingjing.wu@intel.com, bernard.iremonger@intel.com
Cc: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v3 2/3] net/mlx5: use API to set max LRO packet size
Date: Wed,  6 Nov 2019 16:28:17 +0200
Message-ID: <bd4231db7829e2113493bb130b4f15b27efb9d25.1573050134.git.dekelp@mellanox.com> (raw)
In-Reply-To: <cover.1573050133.git.dekelp@mellanox.com>

This patch implements use of the API for LRO aggregated packet
max size.
Rx queue create is updated to use the relevant configuration.
Documentation is updated accordingly.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
---
 doc/guides/nics/mlx5.rst    | 2 ++
 drivers/net/mlx5/mlx5_rxq.c | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 4f1093f..3b10daf 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -207,6 +207,8 @@ Limitations
   - KEEP_CRC offload cannot be supported with LRO.
   - The first mbuf length, without head-room,  must be big enough to include the
     TCP header (122B).
+  - Rx queue with LRO offload enabled, receiving a non-LRO packet, can forward
+    it with size limited to max LRO size, not to max RX packet length.
 
 Statistics
 ----------
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 9423e7b..c725e14 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1772,7 +1772,9 @@ struct mlx5_rxq_ctrl *
 			   dev->data->dev_conf.rxmode.offloads;
 	unsigned int lro_on_queue = !!(offloads & DEV_RX_OFFLOAD_TCP_LRO);
 	const int mprq_en = mlx5_check_mprq_support(dev) > 0;
-	unsigned int max_rx_pkt_len = dev->data->dev_conf.rxmode.max_rx_pkt_len;
+	unsigned int max_rx_pkt_len = lro_on_queue ?
+			dev->data->dev_conf.rxmode.max_lro_pkt_size :
+			dev->data->dev_conf.rxmode.max_rx_pkt_len;
 	unsigned int non_scatter_min_mbuf_size = max_rx_pkt_len +
 							RTE_PKTMBUF_HEADROOM;
 	unsigned int max_lro_size = 0;
-- 
1.8.3.1


  parent reply index

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-05  8:40 [dpdk-dev] [PATCH 0/3] support " Dekel Peled
2019-11-05  8:40 ` [dpdk-dev] [PATCH 1/3] ethdev: " Dekel Peled
2019-11-05 12:39   ` Andrew Rybchenko
2019-11-05 13:09     ` Thomas Monjalon
2019-11-05 14:18     ` Dekel Peled
2019-11-05 14:27       ` Andrew Rybchenko
2019-11-05 14:51         ` Dekel Peled
2019-11-05  8:40 ` [dpdk-dev] [PATCH 2/3] net/mlx5: use " Dekel Peled
2019-11-05  8:40 ` [dpdk-dev] [PATCH 3/3] app/testpmd: " Dekel Peled
2019-11-05  9:35 ` [dpdk-dev] [PATCH 0/3] support " Matan Azrad
2019-11-06 11:34 ` [dpdk-dev] [PATCH v2 " Dekel Peled
2019-11-06 11:34   ` [dpdk-dev] [PATCH v2 1/3] ethdev: " Dekel Peled
2019-11-06 12:26     ` Thomas Monjalon
2019-11-06 12:39       ` Dekel Peled
2019-11-06 11:34   ` [dpdk-dev] [PATCH v2 2/3] net/mlx5: use " Dekel Peled
2019-11-06 11:34   ` [dpdk-dev] [PATCH v2 3/3] app/testpmd: " Dekel Peled
2019-11-06 12:35     ` Iremonger, Bernard
2019-11-06 13:14       ` Dekel Peled
2019-11-06 14:28   ` [dpdk-dev] [PATCH v3 0/3] support " Dekel Peled
2019-11-06 14:28     ` [dpdk-dev] [PATCH v3 1/3] ethdev: " Dekel Peled
2019-11-07 11:57       ` [dpdk-dev] [EXT] " Shahed Shaikh
2019-11-07 12:18         ` Dekel Peled
2019-11-06 14:28     ` Dekel Peled [this message]
2019-11-06 14:28     ` [dpdk-dev] [PATCH v3 3/3] app/testpmd: use " Dekel Peled
2019-11-06 16:41     ` [dpdk-dev] [PATCH v3 0/3] support " Iremonger, Bernard
2019-11-07  6:10       ` Dekel Peled
2019-11-07 12:35     ` [dpdk-dev] [PATCH v4 " Dekel Peled
2019-11-07 12:35       ` [dpdk-dev] [PATCH v4 1/3] ethdev: " Dekel Peled
2019-11-07 20:15         ` Ferruh Yigit
2019-11-08  6:54           ` Matan Azrad
2019-11-08  9:19             ` Ferruh Yigit
2019-11-08 10:10               ` Matan Azrad
2019-11-08 11:37                 ` Ferruh Yigit
2019-11-08 11:56                   ` Matan Azrad
2019-11-08 12:51                     ` Ferruh Yigit
2019-11-08 16:11                       ` Dekel Peled
2019-11-08 16:53                         ` Ferruh Yigit
2019-11-09 18:20                       ` Matan Azrad
2019-11-10 23:40                         ` Ananyev, Konstantin
2019-11-11  8:01                           ` Matan Azrad
2019-11-12 18:31                             ` Ananyev, Konstantin
2019-11-11 11:15                         ` Ferruh Yigit
2019-11-11 11:33                           ` Matan Azrad
2019-11-11 12:21                             ` Ferruh Yigit
2019-11-11 13:32                               ` Matan Azrad
2019-11-08 13:11                     ` Ananyev, Konstantin
2019-11-08 14:10                       ` Dekel Peled
2019-11-08 14:52                         ` Ananyev, Konstantin
2019-11-08 16:08                           ` Dekel Peled
2019-11-08 16:28                             ` Ananyev, Konstantin
2019-11-09 18:26                               ` Matan Azrad
2019-11-10 22:51                                 ` Ananyev, Konstantin
2019-11-11  6:53                                   ` Matan Azrad
2019-11-07 12:35       ` [dpdk-dev] [PATCH v4 2/3] net/mlx5: use " Dekel Peled
2019-11-08  9:12         ` Slava Ovsiienko
2019-11-08  9:23           ` Ferruh Yigit
2019-11-07 12:35       ` [dpdk-dev] [PATCH v4 3/3] app/testpmd: " Dekel Peled
2019-11-07 14:20         ` Iremonger, Bernard
2019-11-07 20:25         ` Ferruh Yigit
2019-11-08  6:56           ` Matan Azrad
2019-11-08 13:58           ` Dekel Peled
2019-11-08  6:28       ` [dpdk-dev] [PATCH v4 0/3] support " Matan Azrad
2019-11-08 16:42       ` [dpdk-dev] [PATCH v5 " Dekel Peled
2019-11-08 16:42         ` [dpdk-dev] [PATCH v5 1/3] ethdev: " Dekel Peled
2019-11-10 23:07           ` Ananyev, Konstantin
2019-11-11  7:40             ` Dekel Peled
2019-11-08 16:42         ` [dpdk-dev] [PATCH v5 2/3] net/mlx5: use " Dekel Peled
2019-11-08 16:42         ` [dpdk-dev] [PATCH v5 3/3] app/testpmd: " Dekel Peled
2019-11-10 23:11           ` Ananyev, Konstantin
2019-11-11  7:40             ` Dekel Peled
2019-11-08 23:07 ` [dpdk-dev] [PATCH v6] ethdev: add " Thomas Monjalon
2019-11-10 22:47   ` Ananyev, Konstantin
2019-11-11 17:47   ` [dpdk-dev] [PATCH v7 0/3] support API to set " Dekel Peled
2019-11-11 17:47     ` [dpdk-dev] [PATCH v7 1/3] ethdev: " Dekel Peled
2019-11-12  0:46       ` Ferruh Yigit
2019-11-11 17:47     ` [dpdk-dev] [PATCH v7 2/3] net/mlx5: use " Dekel Peled
2019-11-11 17:47     ` [dpdk-dev] [PATCH v7 3/3] app/testpmd: " Dekel Peled
2019-11-12  0:46       ` Ferruh Yigit
2019-11-12  0:47     ` [dpdk-dev] [PATCH v7 0/3] support " Ferruh Yigit

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