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net/mlx5: support reading module EEPROM data

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This patch implements ethdev operations get_module_info and
get_module_eeprom, to support ethtool commands ETHTOOL_GMODULEINFO
and ETHTOOL_GMODULEEEPROM.

New functions mlx5_get_module_info() and mlx5_get_module_eeprom()
added in mlx5_ethdev.c.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
This commit is contained in:
Dekel Peled 2019-09-09 14:04:35 +03:00 committed by Ferruh Yigit
parent 5f163d520c
commit 8a6a09f853
3 changed files with 96 additions and 0 deletions
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6
drivers/net/mlx5/mlx5.c
View File

@ -996,6 +996,8 @@ const struct eth_dev_ops mlx5_dev_ops = {
.rx_queue_intr_disable = mlx5_rx_intr_disable,
.is_removed = mlx5_is_removed,
.udp_tunnel_port_add = mlx5_udp_tunnel_port_add,
.get_module_info = mlx5_get_module_info,
.get_module_eeprom = mlx5_get_module_eeprom,
};
/* Available operations from secondary process. */
@ -1009,6 +1011,8 @@ static const struct eth_dev_ops mlx5_dev_sec_ops = {
.dev_infos_get = mlx5_dev_infos_get,
.rx_descriptor_status = mlx5_rx_descriptor_status,
.tx_descriptor_status = mlx5_tx_descriptor_status,
.get_module_info = mlx5_get_module_info,
.get_module_eeprom = mlx5_get_module_eeprom,
};
/* Available operations in flow isolated mode. */
@ -1052,6 +1056,8 @@ const struct eth_dev_ops mlx5_dev_ops_isolate = {
.rx_queue_intr_enable = mlx5_rx_intr_enable,
.rx_queue_intr_disable = mlx5_rx_intr_disable,
.is_removed = mlx5_is_removed,
.get_module_info = mlx5_get_module_info,
.get_module_eeprom = mlx5_get_module_eeprom,
};
/**

4
drivers/net/mlx5/mlx5.h
View File

@ -728,6 +728,10 @@ void mlx5_translate_port_name(const char *port_name_in,
struct mlx5_switch_info *port_info_out);
void mlx5_intr_callback_unregister(const struct rte_intr_handle *handle,
rte_intr_callback_fn cb_fn, void *cb_arg);
int mlx5_get_module_info(struct rte_eth_dev *dev,
struct rte_eth_dev_module_info *modinfo);
int mlx5_get_module_eeprom(struct rte_eth_dev *dev,
struct rte_dev_eeprom_info *info);
/* mlx5_mac.c */

86
drivers/net/mlx5/mlx5_ethdev.c
View File

@ -1928,3 +1928,89 @@ mlx5_translate_port_name(const char *port_name_in,
port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN;
return;
}
/**
* DPDK callback to retrieve plug-in module EEPROM information (type and size).
*
* @param dev
* Pointer to Ethernet device structure.
* @param[out] modinfo
* Storage for plug-in module EEPROM information.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_get_module_info(struct rte_eth_dev *dev,
struct rte_eth_dev_module_info *modinfo)
{
struct ethtool_modinfo info = {
.cmd = ETHTOOL_GMODULEINFO,
};
struct ifreq ifr = (struct ifreq) {
.ifr_data = (void *)&info,
};
int ret = 0;
if (!dev || !modinfo) {
DRV_LOG(WARNING, "missing argument, cannot get module info");
rte_errno = EINVAL;
return -rte_errno;
}
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
modinfo->type = info.type;
modinfo->eeprom_len = info.eeprom_len;
return ret;
}
/**
* DPDK callback to retrieve plug-in module EEPROM data.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[out] info
* Storage for plug-in module EEPROM data.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int mlx5_get_module_eeprom(struct rte_eth_dev *dev,
struct rte_dev_eeprom_info *info)
{
struct ethtool_eeprom *eeprom;
struct ifreq ifr;
int ret = 0;
if (!dev || !info) {
DRV_LOG(WARNING, "missing argument, cannot get module eeprom");
rte_errno = EINVAL;
return -rte_errno;
}
eeprom = rte_calloc(__func__, 1,
(sizeof(struct ethtool_eeprom) + info->length), 0);
if (!eeprom) {
DRV_LOG(WARNING, "port %u cannot allocate memory for "
"eeprom data", dev->data->port_id);
rte_errno = ENOMEM;
return -rte_errno;
}
eeprom->cmd = ETHTOOL_GMODULEEEPROM;
eeprom->offset = info->offset;
eeprom->len = info->length;
ifr = (struct ifreq) {
.ifr_data = (void *)eeprom,
};
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret)
DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s",
dev->data->port_id, strerror(rte_errno));
else
rte_memcpy(info->data, eeprom->data, info->length);
rte_free(eeprom);
return ret;
}