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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2015 6WIND S.A.
* Copyright 2015 Mellanox.
*/
#include <stddef.h>
#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <inttypes.h>
#include <errno.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
/* Verbs header. */
/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
#ifdef PEDANTIC
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
#include <infiniband/verbs.h>
#ifdef PEDANTIC
#pragma GCC diagnostic error "-Wpedantic"
#endif
#include <rte_ether.h>
#include <rte_ethdev_driver.h>
#include <rte_common.h>
#include "mlx5.h"
#include "mlx5_utils.h"
#include "mlx5_rxtx.h"
#include "mlx5_defs.h"
/**
* Get MAC address by querying netdevice.
*
* @param[in] priv
* struct priv for the requested device.
* @param[out] mac
* MAC address output buffer.
*
* @return
* 0 on success, -1 on failure and errno is set.
*/
int
priv_get_mac(struct priv *priv, uint8_t (*mac)[ETHER_ADDR_LEN])
{
struct ifreq request;
if (priv_ifreq(priv, SIOCGIFHWADDR, &request))
return -1;
memcpy(mac, request.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
return 0;
}
/**
* DPDK callback to remove a MAC address.
*
* @param dev
* Pointer to Ethernet device structure.
* @param index
* MAC address index.
*/
void
mlx5_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
{
assert(index < MLX5_MAX_MAC_ADDRESSES);
memset(&dev->data->mac_addrs[index], 0, sizeof(struct ether_addr));
if (!dev->data->promiscuous)
mlx5_traffic_restart(dev);
}
/**
* DPDK callback to add a MAC address.
*
* @param dev
* Pointer to Ethernet device structure.
* @param mac_addr
* MAC address to register.
* @param index
* MAC address index.
* @param vmdq
* VMDq pool index to associate address with (ignored).
*
* @return
* 0 on success.
*/
int
mlx5_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac,
uint32_t index, uint32_t vmdq)
{
unsigned int i;
int ret = 0;
(void)vmdq;
assert(index < MLX5_MAX_MAC_ADDRESSES);
/* First, make sure this address isn't already configured. */
for (i = 0; (i != MLX5_MAX_MAC_ADDRESSES); ++i) {
/* Skip this index, it's going to be reconfigured. */
if (i == index)
continue;
if (memcmp(&dev->data->mac_addrs[i], mac, sizeof(*mac)))
continue;
/* Address already configured elsewhere, return with error. */
return EADDRINUSE;
}
dev->data->mac_addrs[index] = *mac;
if (!dev->data->promiscuous)
mlx5_traffic_restart(dev);
return ret;
}
/**
* DPDK callback to set primary MAC address.
*
* @param dev
* Pointer to Ethernet device structure.
* @param mac_addr
* MAC address to register.
*/
void
mlx5_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
{
DEBUG("%p: setting primary MAC address", (void *)dev);
mlx5_mac_addr_add(dev, mac_addr, 0, 0);
}
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