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net/axgbe: support setting MTU

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This patch adds support for set_mtu API which can be used to change
the Maximum Transmission unit (MTU) from application.

Signed-off-by: Girish Nandibasappa <girish.nandibasappa@amd.com>
Acked-by: Amaranath Somalapuram <asomalap@amd.com>
This commit is contained in:
Girish Nandibasappa 2020-06-01 20:18:41 +05:30 committed by Ferruh Yigit
parent 76d7664d16
commit b58d8781fa
1 changed files with 31 additions and 1 deletions
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32
drivers/net/axgbe/axgbe_ethdev.c
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@ -83,6 +83,7 @@ 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];
@ -228,6 +229,7 @@ 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)
@ -1398,7 +1400,35 @@ 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;