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net/liquidio: add API to validate VF MTU

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Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Venkat Koppula <venkat.koppula@caviumnetworks.com>
Signed-off-by: Srisivasubramanian S <ssrinivasan@caviumnetworks.com>
Signed-off-by: Mallesham Jatharakonda <mjatharakonda@oneconvergence.com>
This commit is contained in:
Shijith Thotton 2017-03-25 11:54:47 +05:30 committed by Ferruh Yigit
parent 1ad8f10bc9
commit 605164c8e7
1 changed files with 46 additions and 0 deletions
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46
drivers/net/liquidio/lio_ethdev.c
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@ -151,6 +151,33 @@ lio_dev_info_get(struct rte_eth_dev *eth_dev,
ETH_RSS_IPV6_TCP_EX);
}
static int
lio_dev_validate_vf_mtu(struct rte_eth_dev *eth_dev, uint16_t new_mtu)
{
struct lio_device *lio_dev = LIO_DEV(eth_dev);
PMD_INIT_FUNC_TRACE();
if (!lio_dev->intf_open) {
lio_dev_err(lio_dev, "Port %d down, can't check MTU\n",
lio_dev->port_id);
return -EINVAL;
}
/* Limit the MTU to make sure the ethernet packets are between
* ETHER_MIN_MTU bytes and PF's MTU
*/
if ((new_mtu < ETHER_MIN_MTU) ||
(new_mtu > lio_dev->linfo.link.s.mtu)) {
lio_dev_err(lio_dev, "Invalid MTU: %d\n", new_mtu);
lio_dev_err(lio_dev, "Valid range %d and %d\n",
ETHER_MIN_MTU, lio_dev->linfo.link.s.mtu);
return -EINVAL;
}
return 0;
}
static int
lio_dev_rss_reta_update(struct rte_eth_dev *eth_dev,
struct rte_eth_rss_reta_entry64 *reta_conf,
@ -824,7 +851,9 @@ lio_sync_link_state_check(void *eth_dev)
static int
lio_dev_start(struct rte_eth_dev *eth_dev)
{
uint16_t mtu = eth_dev->data->dev_conf.rxmode.max_rx_pkt_len;
struct lio_device *lio_dev = LIO_DEV(eth_dev);
uint16_t timeout = LIO_MAX_CMD_TIMEOUT;
int ret = 0;
lio_dev_info(lio_dev, "Starting port %d\n", eth_dev->data->port_id);
@ -852,8 +881,25 @@ lio_dev_start(struct rte_eth_dev *eth_dev)
goto dev_lsc_handle_error;
}
while ((lio_dev->linfo.link.link_status64 == 0) && (--timeout))
rte_delay_ms(1);
if (lio_dev->linfo.link.link_status64 == 0) {
ret = -1;
goto dev_mtu_check_error;
}
if (lio_dev->linfo.link.s.mtu != mtu) {
ret = lio_dev_validate_vf_mtu(eth_dev, mtu);
if (ret)
goto dev_mtu_check_error;
}
return 0;
dev_mtu_check_error:
rte_eal_alarm_cancel(lio_sync_link_state_check, eth_dev);
dev_lsc_handle_error:
lio_dev->intf_open = 0;
lio_send_rx_ctrl_cmd(eth_dev, 0);