[AMD Public Use]
Acked-by: Somalapuram Amaranath <asoma...@amd.com>
-----Original Message-----
From: Nandibasappa, Girish <girish.nandibasa...@amd.com>
Sent: Monday, June 1, 2020 8:19 PM
To: dev@dpdk.org
Cc: Somalapuram, Amaranath <amaranath.somalapu...@amd.com>
Subject: [PATCH v1] net/axgbe: add support for set MTU API
From: gnandiba <gnand...@amd.com>
This patch adds support for set_mtu API which can be used to change the Maximum
Transmission unit (MTU) from application.
Signed-off-by: gnandiba <gnand...@amd.com>
---
drivers/net/axgbe/axgbe_ethdev.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 867058845..cdb1297f5 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -73,6 +73,7 @@ static void axgbe_rxq_info_get(struct rte_eth_dev *dev,
uint16_t queue_id, static void axgbe_txq_info_get(struct rte_eth_dev *dev,
uint16_t queue_id,
struct rte_eth_txq_info *qinfo);
const uint32_t *axgbe_dev_supported_ptypes_get(struct rte_eth_dev *dev);
+static int axgb_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
struct axgbe_xstats {
char name[RTE_ETH_XSTATS_NAME_SIZE];
@@ -214,6 +215,7 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
.dev_supported_ptypes_get = axgbe_dev_supported_ptypes_get,
.rx_descriptor_status = axgbe_dev_rx_descriptor_status,
.tx_descriptor_status = axgbe_dev_tx_descriptor_status,
+.mtu_set= axgb_mtu_set,
};
static int axgbe_phy_reset(struct axgbe_port *pdata) @@ -1254,7 +1256,35 @@
axgbe_dev_supported_ptypes_get(struct rte_eth_dev *dev)
return ptypes;
return NULL;
}
-
+static int axgb_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) {
+struct rte_eth_dev_info dev_info;
+struct axgbe_port *pdata = dev->data->dev_private;
+uint32_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
+unsigned int val = 0;
+axgbe_dev_info_get(dev, &dev_info);
+/* check that mtu is within the allowed range */
+if ((mtu < RTE_ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen))
+return -EINVAL;
+/* mtu setting is forbidden if port is start */
+if (dev->data->dev_started) {
+PMD_DRV_LOG(ERR, "port %d must be stopped before configuration",
+dev->data->port_id);
+return -EBUSY;
+}
+if (frame_size > RTE_ETHER_MAX_LEN) {
+dev->data->dev_conf.rxmode.offloads |=
+DEV_RX_OFFLOAD_JUMBO_FRAME;
+val = 1;
+} else {
+dev->data->dev_conf.rxmode.offloads &=
+~DEV_RX_OFFLOAD_JUMBO_FRAME;
+val = 0;
+}
+AXGMAC_IOWRITE_BITS(pdata, MAC_RCR, JE, val);
+dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+return 0;
+}
static void axgbe_get_all_hw_features(struct axgbe_port *pdata) {
unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
--
2.17.1
