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mlx5: support link status update

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Link information is retrieved using ethtool ioctls.

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Adrien Mazarguil 2015-10-30 19:52:38 +01:00 committed by Thomas Monjalon
parent 1bdbe1af99
commit cb8faed7dd
3 changed files with 73 additions and 0 deletions
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1
drivers/net/mlx5/mlx5.c
View File

@ -137,6 +137,7 @@ static const struct eth_dev_ops mlx5_dev_ops = {
.promiscuous_disable = mlx5_promiscuous_disable,
.allmulticast_enable = mlx5_allmulticast_enable,
.allmulticast_disable = mlx5_allmulticast_disable,
.link_update = mlx5_link_update,
.stats_get = mlx5_stats_get,
.stats_reset = mlx5_stats_reset,
.dev_infos_get = mlx5_dev_infos_get,

1
drivers/net/mlx5/mlx5.h
View File

@ -164,6 +164,7 @@ int priv_get_mtu(struct priv *, uint16_t *);
int priv_set_flags(struct priv *, unsigned int, unsigned int);
int mlx5_dev_configure(struct rte_eth_dev *);
void mlx5_dev_infos_get(struct rte_eth_dev *, struct rte_eth_dev_info *);
int mlx5_link_update(struct rte_eth_dev *, int);
int mlx5_dev_set_mtu(struct rte_eth_dev *, uint16_t);
int mlx5_ibv_device_to_pci_addr(const struct ibv_device *,
struct rte_pci_addr *);

71
drivers/net/mlx5/mlx5_ethdev.c
View File

@ -45,6 +45,8 @@
#include <sys/socket.h>
#include <netinet/in.h>
#include <linux/if.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
/* DPDK headers don't like -pedantic. */
#ifdef PEDANTIC
@ -534,6 +536,75 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
priv_unlock(priv);
}
/**
* DPDK callback to retrieve physical link information (unlocked version).
*
* @param dev
* Pointer to Ethernet device structure.
* @param wait_to_complete
* Wait for request completion (ignored).
*/
static int
mlx5_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete)
{
struct priv *priv = dev->data->dev_private;
struct ethtool_cmd edata = {
.cmd = ETHTOOL_GSET
};
struct ifreq ifr;
struct rte_eth_link dev_link;
int link_speed = 0;
(void)wait_to_complete;
if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) {
WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno));
return -1;
}
memset(&dev_link, 0, sizeof(dev_link));
dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
(ifr.ifr_flags & IFF_RUNNING));
ifr.ifr_data = &edata;
if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
WARN("ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s",
strerror(errno));
return -1;
}
link_speed = ethtool_cmd_speed(&edata);
if (link_speed == -1)
dev_link.link_speed = 0;
else
dev_link.link_speed = link_speed;
dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ?
ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) {
/* Link status changed. */
dev->data->dev_link = dev_link;
return 0;
}
/* Link status is still the same. */
return -1;
}
/**
* DPDK callback to retrieve physical link information.
*
* @param dev
* Pointer to Ethernet device structure.
* @param wait_to_complete
* Wait for request completion (ignored).
*/
int
mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
{
struct priv *priv = dev->data->dev_private;
int ret;
priv_lock(priv);
ret = mlx5_link_update_unlocked(dev, wait_to_complete);
priv_unlock(priv);
return ret;
}
/**
* DPDK callback to change the MTU.
*