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/*-
* BSD LICENSE
*
* Copyright 2015 6WIND S.A.
* Copyright 2015 Mellanox.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of 6WIND S.A. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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.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] dev
* Pointer to Ethernet device.
* @param[out] mac
* MAC address output buffer.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_get_mac(struct rte_eth_dev *dev, uint8_t (*mac)[ETHER_ADDR_LEN])
{
struct ifreq request;
int ret;
ret = mlx5_ifreq(dev, SIOCGIFHWADDR, &request);
if (ret)
return ret;
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) {
int ret = mlx5_traffic_restart(dev);
if (ret)
DRV_LOG(ERR, "port %u cannot remove mac address: %s",
dev->data->port_id, strerror(rte_errno));
}
}
/**
* 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, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac,
uint32_t index, uint32_t vmdq __rte_unused)
{
unsigned int i;
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. */
rte_errno = EADDRINUSE;
return -rte_errno;
}
dev->data->mac_addrs[index] = *mac;
if (!dev->data->promiscuous)
return mlx5_traffic_restart(dev);
return 0;
}
/**
* 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)
{
int ret;
DRV_LOG(DEBUG, "port %u setting primary MAC address",
dev->data->port_id);
ret = mlx5_mac_addr_add(dev, mac_addr, 0, 0);
if (ret)
DRV_LOG(ERR, "port %u cannot set mac address: %s",
dev->data->port_id, strerror(rte_errno));
}
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