[dpdk-dev] [PATCH v4 15/19] net/hinic: support LRO offload

[Xiaoyun wang <cloud.wangxiaoyun@huawei.com>]

This patch supports LRO offload.

Signed-off-by: Xiaoyun wang <cloud.wangxiaoyun@huawei.com>
---
 doc/guides/nics/features/hinic.ini   |  1 +
 doc/guides/nics/hinic.rst            |  1 +
 drivers/net/hinic/hinic_pmd_ethdev.c | 24 ++++++++++++++++++------
 3 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/doc/guides/nics/features/hinic.ini b/doc/guides/nics/features/hinic.ini
index 2c9d845..65a335a 100644
--- a/doc/guides/nics/features/hinic.ini
+++ b/doc/guides/nics/features/hinic.ini
@@ -13,6 +13,7 @@ MTU update           = Y
 Jumbo frame          = Y
 Scattered Rx         = Y
 TSO                  = Y
+LRO                  = Y
 Promiscuous mode     = Y
 Allmulticast mode    = Y
 Unicast MAC filter   = Y
diff --git a/doc/guides/nics/hinic.rst b/doc/guides/nics/hinic.rst
index ed607eb..9fb80d4 100644
--- a/doc/guides/nics/hinic.rst
+++ b/doc/guides/nics/hinic.rst
@@ -33,6 +33,7 @@ Features
 - Flow director
 - Set Link down or up
 - FW version
+- LRO
 
 Prerequisites
 -------------
diff --git a/drivers/net/hinic/hinic_pmd_ethdev.c b/drivers/net/hinic/hinic_pmd_ethdev.c
index b2cc0e4..54b9b49 100644
--- a/drivers/net/hinic/hinic_pmd_ethdev.c
+++ b/drivers/net/hinic/hinic_pmd_ethdev.c
@@ -70,6 +70,9 @@
 #define HINIC_PKTLEN_TO_MTU(pktlen)	\
 	((pktlen) - (ETH_HLEN + ETH_CRC_LEN))
 
+/* lro numer limit for one packet */
+#define HINIC_LRO_WQE_NUM_DEFAULT	8
+
 /* Driver-specific log messages type */
 int hinic_logtype;
 
@@ -731,7 +734,8 @@ static void hinic_get_speed_capa(struct rte_eth_dev *dev, uint32_t *speed_capa)
 				DEV_RX_OFFLOAD_TCP_CKSUM |
 				DEV_RX_OFFLOAD_VLAN_FILTER |
 				DEV_RX_OFFLOAD_SCATTER |
-				DEV_RX_OFFLOAD_JUMBO_FRAME;
+				DEV_RX_OFFLOAD_JUMBO_FRAME |
+				DEV_RX_OFFLOAD_TCP_LRO;
 
 	info->tx_queue_offload_capa = 0;
 	info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT |
@@ -792,6 +796,7 @@ static int hinic_rxtx_configure(struct rte_eth_dev *dev)
 {
 	int err;
 	struct hinic_nic_dev *nic_dev = HINIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev);
+	bool lro_en;
 
 	/* rx configure, if rss enable, need to init default configuration */
 	err = hinic_rx_configure(dev);
@@ -808,6 +813,18 @@ static int hinic_rxtx_configure(struct rte_eth_dev *dev)
 		goto set_rx_mode_fail;
 	}
 
+	/* config lro */
+	lro_en = dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_TCP_LRO ?
+			true : false;
+
+	err = hinic_set_rx_lro(nic_dev->hwdev, lro_en, lro_en,
+				HINIC_LRO_WQE_NUM_DEFAULT);
+	if (err) {
+		PMD_DRV_LOG(ERR, "%s lro failed, err: %d",
+			lro_en ? "Enable" : "Disable", err);
+		goto set_rx_mode_fail;
+	}
+
 	return HINIC_OK;
 
 set_rx_mode_fail:
@@ -2478,11 +2495,6 @@ static int hinic_set_default_hw_feature(struct hinic_nic_dev *nic_dev)
 	if (err)
 		return err;
 
-	/* disable LRO */
-	err = hinic_set_rx_lro(nic_dev->hwdev, 0, 0, (u8)0);
-	if (err)
-		return err;
-
 	/* Set pause enable, and up will disable pfc. */
 	err = hinic_set_default_pause_feature(nic_dev);
 	if (err)
-- 
1.8.3.1