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numam-dpdk/drivers/net/mlx5/linux/mlx5_ethdev_os.c
Bing Zhao ccc6ea5d9c net/mlx5: fix build with recent compilers 
With some higher GCC/CLANG version, it is not recommended to use a
structure with a tailing flexible array inside another structure.
Accessing this array may be considered as a risk to corrupt the
following field even if it is by intention.

The error below was observed:

  drivers/net/mlx5/linux/mlx5_ethdev_os.c: In function 'mlx5_get_flag_dropless_rq':
  drivers/net/mlx5/linux/mlx5_ethdev_os.c:1679:42: error:
  invalid use of structure with flexible array member [-Werror=pedantic]
  1679 | struct ethtool_sset_info hdr;
       | ^~~

Changing it to memory dynamic allocation method will help to get
rid of this complain.

Fixes: e848218741 ("net/mlx5: check delay drop settings in kernel driver")
Cc: stable@dpdk.org

Signed-off-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2022-10-31 20:02:05 +01:00

1779 lines
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2015 6WIND S.A.
* Copyright 2015 Mellanox Technologies, Ltd
*/
#include <stddef.h>
#include <inttypes.h>
#include <unistd.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <dirent.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
#include <fcntl.h>
#include <stdalign.h>
#include <sys/un.h>
#include <time.h>
#include <ethdev_driver.h>
#include <bus_pci_driver.h>
#include <rte_mbuf.h>
#include <rte_common.h>
#include <rte_interrupts.h>
#include <rte_malloc.h>
#include <rte_string_fns.h>
#include <rte_rwlock.h>
#include <rte_cycles.h>
#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
#include <mlx5_common.h>
#include <mlx5_malloc.h>
#include <mlx5_nl.h>
#include "mlx5.h"
#include "mlx5_rxtx.h"
#include "mlx5_utils.h"
/* Supported speed values found in /usr/include/linux/ethtool.h */
#ifndef HAVE_SUPPORTED_40000baseKR4_Full
#define SUPPORTED_40000baseKR4_Full (1 << 23)
#endif
#ifndef HAVE_SUPPORTED_40000baseCR4_Full
#define SUPPORTED_40000baseCR4_Full (1 << 24)
#endif
#ifndef HAVE_SUPPORTED_40000baseSR4_Full
#define SUPPORTED_40000baseSR4_Full (1 << 25)
#endif
#ifndef HAVE_SUPPORTED_40000baseLR4_Full
#define SUPPORTED_40000baseLR4_Full (1 << 26)
#endif
#ifndef HAVE_SUPPORTED_56000baseKR4_Full
#define SUPPORTED_56000baseKR4_Full (1 << 27)
#endif
#ifndef HAVE_SUPPORTED_56000baseCR4_Full
#define SUPPORTED_56000baseCR4_Full (1 << 28)
#endif
#ifndef HAVE_SUPPORTED_56000baseSR4_Full
#define SUPPORTED_56000baseSR4_Full (1 << 29)
#endif
#ifndef HAVE_SUPPORTED_56000baseLR4_Full
#define SUPPORTED_56000baseLR4_Full (1 << 30)
#endif
/* Add defines in case the running kernel is not the same as user headers. */
#ifndef ETHTOOL_GLINKSETTINGS
struct ethtool_link_settings {
uint32_t cmd;
uint32_t speed;
uint8_t duplex;
uint8_t port;
uint8_t phy_address;
uint8_t autoneg;
uint8_t mdio_support;
uint8_t eth_to_mdix;
uint8_t eth_tp_mdix_ctrl;
int8_t link_mode_masks_nwords;
uint32_t reserved[8];
uint32_t link_mode_masks[];
};
/* The kernel values can be found in /include/uapi/linux/ethtool.h */
#define ETHTOOL_GLINKSETTINGS 0x0000004c
#define ETHTOOL_LINK_MODE_1000baseT_Full_BIT 5
#define ETHTOOL_LINK_MODE_Autoneg_BIT 6
#define ETHTOOL_LINK_MODE_1000baseKX_Full_BIT 17
#define ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT 18
#define ETHTOOL_LINK_MODE_10000baseKR_Full_BIT 19
#define ETHTOOL_LINK_MODE_10000baseR_FEC_BIT 20
#define ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT 21
#define ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT 22
#define ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT 23
#define ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT 24
#define ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT 25
#define ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT 26
#define ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT 27
#define ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT 28
#define ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT 29
#define ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT 30
#endif
#ifndef HAVE_ETHTOOL_LINK_MODE_25G
#define ETHTOOL_LINK_MODE_25000baseCR_Full_BIT 31
#define ETHTOOL_LINK_MODE_25000baseKR_Full_BIT 32
#define ETHTOOL_LINK_MODE_25000baseSR_Full_BIT 33
#endif
#ifndef HAVE_ETHTOOL_LINK_MODE_50G
#define ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT 34
#define ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT 35
#endif
#ifndef HAVE_ETHTOOL_LINK_MODE_100G
#define ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT 36
#define ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT 37
#define ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT 38
#define ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT 39
#endif
#ifndef HAVE_ETHTOOL_LINK_MODE_200G
#define ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT 62
#define ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT 63
#define ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT 0 /* 64 - 64 */
#define ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT 1 /* 65 - 64 */
#define ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT 2 /* 66 - 64 */
#endif
/* Get interface index from SubFunction device name. */
int
mlx5_auxiliary_get_ifindex(const char *sf_name)
{
char if_name[IF_NAMESIZE] = { 0 };
if (mlx5_auxiliary_get_child_name(sf_name, "/net",
if_name, sizeof(if_name)) != 0)
return -rte_errno;
return if_nametoindex(if_name);
}
/**
* Get interface name from private structure.
*
* This is a port representor-aware version of mlx5_get_ifname_sysfs().
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[out] ifname
* Interface name output buffer.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[MLX5_NAMESIZE])
{
struct mlx5_priv *priv = dev->data->dev_private;
unsigned int ifindex;
MLX5_ASSERT(priv);
MLX5_ASSERT(priv->sh);
if (priv->master && priv->sh->bond.ifindex > 0) {
memcpy(ifname, priv->sh->bond.ifname, MLX5_NAMESIZE);
return 0;
}
ifindex = mlx5_ifindex(dev);
if (!ifindex) {
if (!priv->representor)
return mlx5_get_ifname_sysfs(priv->sh->ibdev_path,
*ifname);
rte_errno = ENXIO;
return -rte_errno;
}
if (if_indextoname(ifindex, &(*ifname)[0]))
return 0;
rte_errno = errno;
return -rte_errno;
}
/**
* Perform ifreq ioctl() on associated netdev ifname.
*
* @param[in] ifname
* Pointer to netdev name.
* @param req
* Request number to pass to ioctl().
* @param[out] ifr
* Interface request structure output buffer.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_ifreq_by_ifname(const char *ifname, int req, struct ifreq *ifr)
{
int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
int ret = 0;
if (sock == -1) {
rte_errno = errno;
return -rte_errno;
}
rte_strscpy(ifr->ifr_name, ifname, sizeof(ifr->ifr_name));
ret = ioctl(sock, req, ifr);
if (ret == -1) {
rte_errno = errno;
goto error;
}
close(sock);
return 0;
error:
close(sock);
return -rte_errno;
}
/**
* Perform ifreq ioctl() on associated Ethernet device.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param req
* Request number to pass to ioctl().
* @param[out] ifr
* Interface request structure output buffer.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
{
char ifname[sizeof(ifr->ifr_name)];
int ret;
ret = mlx5_get_ifname(dev, &ifname);
if (ret)
return -rte_errno;
return mlx5_ifreq_by_ifname(ifname, req, ifr);
}
/**
* Get device MTU.
*
* @param dev
* Pointer to Ethernet device.
* @param[out] mtu
* MTU value output buffer.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu)
{
struct ifreq request;
int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request);
if (ret)
return ret;
*mtu = request.ifr_mtu;
return 0;
}
/**
* Set device MTU.
*
* @param dev
* Pointer to Ethernet device.
* @param mtu
* MTU value to set.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
{
struct ifreq request = { .ifr_mtu = mtu, };
return mlx5_ifreq(dev, SIOCSIFMTU, &request);
}
/**
* Set device flags.
*
* @param dev
* Pointer to Ethernet device.
* @param keep
* Bitmask for flags that must remain untouched.
* @param flags
* Bitmask for flags to modify.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags)
{
struct ifreq request;
int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request);
if (ret)
return ret;
request.ifr_flags &= keep;
request.ifr_flags |= flags & ~keep;
return mlx5_ifreq(dev, SIOCSIFFLAGS, &request);
}
/**
* Get device current raw clock counter
*
* @param dev
* Pointer to Ethernet device structure.
* @param[out] time
* Current raw clock counter of the device.
*
* @return
* 0 if the clock has correctly been read
* The value of errno in case of error
*/
int
mlx5_read_clock(struct rte_eth_dev *dev, uint64_t *clock)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct ibv_context *ctx = priv->sh->cdev->ctx;
struct ibv_values_ex values;
int err = 0;
values.comp_mask = IBV_VALUES_MASK_RAW_CLOCK;
err = mlx5_glue->query_rt_values_ex(ctx, &values);
if (err != 0) {
DRV_LOG(WARNING, "Could not query the clock !");
return err;
}
*clock = values.raw_clock.tv_nsec;
return 0;
}
/**
* Retrieve the master device for representor in the same switch domain.
*
* @param dev
* Pointer to representor Ethernet device structure.
*
* @return
* Master device structure on success, NULL otherwise.
*/
static struct rte_eth_dev *
mlx5_find_master_dev(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv;
uint16_t port_id;
uint16_t domain_id;
priv = dev->data->dev_private;
domain_id = priv->domain_id;
MLX5_ASSERT(priv->representor);
MLX5_ETH_FOREACH_DEV(port_id, dev->device) {
struct mlx5_priv *opriv =
rte_eth_devices[port_id].data->dev_private;
if (opriv &&
opriv->master &&
opriv->domain_id == domain_id &&
opriv->sh == priv->sh)
return &rte_eth_devices[port_id];
}
return NULL;
}
/**
* DPDK callback to retrieve physical link information.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[out] link
* Storage for current link status.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev,
struct rte_eth_link *link)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct ethtool_cmd edata = {
.cmd = ETHTOOL_GSET /* Deprecated since Linux v4.5. */
};
struct ifreq ifr;
struct rte_eth_link dev_link;
int link_speed = 0;
int ret;
ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
dev_link = (struct rte_eth_link) {
.link_status = ((ifr.ifr_flags & IFF_UP) &&
(ifr.ifr_flags & IFF_RUNNING)),
};
ifr = (struct ifreq) {
.ifr_data = (void *)&edata,
};
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
if (ret == -ENOTSUP && priv->representor) {
struct rte_eth_dev *master;
/*
* For representors we can try to inherit link
* settings from the master device. Actually
* link settings do not make a lot of sense
* for representors due to missing physical
* link. The old kernel drivers supported
* emulated settings query for representors,
* the new ones do not, so we have to add
* this code for compatibility issues.
*/
master = mlx5_find_master_dev(dev);
if (master) {
ifr = (struct ifreq) {
.ifr_data = (void *)&edata,
};
ret = mlx5_ifreq(master, SIOCETHTOOL, &ifr);
}
}
if (ret) {
DRV_LOG(WARNING,
"port %u ioctl(SIOCETHTOOL,"
" ETHTOOL_GSET) failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
}
link_speed = ethtool_cmd_speed(&edata);
if (link_speed == -1)
dev_link.link_speed = RTE_ETH_SPEED_NUM_UNKNOWN;
else
dev_link.link_speed = link_speed;
priv->link_speed_capa = 0;
if (edata.supported & (SUPPORTED_1000baseT_Full |
SUPPORTED_1000baseKX_Full))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_1G;
if (edata.supported & SUPPORTED_10000baseKR_Full)
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_10G;
if (edata.supported & (SUPPORTED_40000baseKR4_Full |
SUPPORTED_40000baseCR4_Full |
SUPPORTED_40000baseSR4_Full |
SUPPORTED_40000baseLR4_Full))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_40G;
dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ?
RTE_ETH_LINK_HALF_DUPLEX : RTE_ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
RTE_ETH_LINK_SPEED_FIXED);
*link = dev_link;
return 0;
}
/**
* Retrieve physical link information (unlocked version using new ioctl).
*
* @param dev
* Pointer to Ethernet device structure.
* @param[out] link
* Storage for current link status.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
struct rte_eth_link *link)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS };
struct ifreq ifr;
struct rte_eth_link dev_link;
struct rte_eth_dev *master = NULL;
uint64_t sc;
int ret;
ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
dev_link = (struct rte_eth_link) {
.link_status = ((ifr.ifr_flags & IFF_UP) &&
(ifr.ifr_flags & IFF_RUNNING)),
};
ifr = (struct ifreq) {
.ifr_data = (void *)&gcmd,
};
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
if (ret == -ENOTSUP && priv->representor) {
/*
* For representors we can try to inherit link
* settings from the master device. Actually
* link settings do not make a lot of sense
* for representors due to missing physical
* link. The old kernel drivers supported
* emulated settings query for representors,
* the new ones do not, so we have to add
* this code for compatibility issues.
*/
master = mlx5_find_master_dev(dev);
if (master) {
ifr = (struct ifreq) {
.ifr_data = (void *)&gcmd,
};
ret = mlx5_ifreq(master, SIOCETHTOOL, &ifr);
}
}
if (ret) {
DRV_LOG(DEBUG,
"port %u ioctl(SIOCETHTOOL,"
" ETHTOOL_GLINKSETTINGS) failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
}
gcmd.link_mode_masks_nwords = -gcmd.link_mode_masks_nwords;
alignas(struct ethtool_link_settings)
uint8_t data[offsetof(struct ethtool_link_settings, link_mode_masks) +
sizeof(uint32_t) * gcmd.link_mode_masks_nwords * 3];
struct ethtool_link_settings *ecmd = (void *)data;
*ecmd = gcmd;
ifr.ifr_data = (void *)ecmd;
ret = mlx5_ifreq(master ? master : dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(DEBUG,
"port %u ioctl(SIOCETHTOOL,"
"ETHTOOL_GLINKSETTINGS) failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
dev_link.link_speed = (ecmd->speed == UINT32_MAX) ?
RTE_ETH_SPEED_NUM_UNKNOWN : ecmd->speed;
sc = ecmd->link_mode_masks[0] |
((uint64_t)ecmd->link_mode_masks[1] << 32);
priv->link_speed_capa = 0;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseT_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_1G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseR_FEC_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_10G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_20G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_40G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_56G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseSR_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_25G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_50G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_100G;
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_200G;
sc = ecmd->link_mode_masks[2] |
((uint64_t)ecmd->link_mode_masks[3] << 32);
if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT) |
MLX5_BITSHIFT
(ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT) |
MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT)))
priv->link_speed_capa |= RTE_ETH_LINK_SPEED_200G;
dev_link.link_duplex = ((ecmd->duplex == DUPLEX_HALF) ?
RTE_ETH_LINK_HALF_DUPLEX : RTE_ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
RTE_ETH_LINK_SPEED_FIXED);
*link = dev_link;
return 0;
}
/**
* DPDK callback to retrieve physical link information.
*
* @param dev
* Pointer to Ethernet device structure.
* @param wait_to_complete
* Wait for request completion.
*
* @return
* 0 if link status was not updated, positive if it was, a negative errno
* value otherwise and rte_errno is set.
*/
int
mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
{
int ret;
struct rte_eth_link dev_link;
time_t start_time = time(NULL);
int retry = MLX5_GET_LINK_STATUS_RETRY_COUNT;
do {
ret = mlx5_link_update_unlocked_gs(dev, &dev_link);
if (ret == -ENOTSUP)
ret = mlx5_link_update_unlocked_gset(dev, &dev_link);
if (ret == 0)
break;
/* Handle wait to complete situation. */
if ((wait_to_complete || retry) && ret == -EAGAIN) {
if (abs((int)difftime(time(NULL), start_time)) <
MLX5_LINK_STATUS_TIMEOUT) {
usleep(0);
continue;
} else {
rte_errno = EBUSY;
return -rte_errno;
}
} else if (ret < 0) {
return ret;
}
} while (wait_to_complete || retry-- > 0);
ret = !!memcmp(&dev->data->dev_link, &dev_link,
sizeof(struct rte_eth_link));
dev->data->dev_link = dev_link;
return ret;
}
/**
* DPDK callback to get flow control status.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[out] fc_conf
* Flow control output buffer.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
{
struct ifreq ifr;
struct ethtool_pauseparam ethpause = {
.cmd = ETHTOOL_GPAUSEPARAM
};
int ret;
ifr.ifr_data = (void *)&ethpause;
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING,
"port %u ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM) failed:"
" %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
fc_conf->autoneg = ethpause.autoneg;
if (ethpause.rx_pause && ethpause.tx_pause)
fc_conf->mode = RTE_ETH_FC_FULL;
else if (ethpause.rx_pause)
fc_conf->mode = RTE_ETH_FC_RX_PAUSE;
else if (ethpause.tx_pause)
fc_conf->mode = RTE_ETH_FC_TX_PAUSE;
else
fc_conf->mode = RTE_ETH_FC_NONE;
return 0;
}
/**
* DPDK callback to modify flow control parameters.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[in] fc_conf
* Flow control parameters.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
{
struct ifreq ifr;
struct ethtool_pauseparam ethpause = {
.cmd = ETHTOOL_SPAUSEPARAM
};
int ret;
ifr.ifr_data = (void *)&ethpause;
ethpause.autoneg = fc_conf->autoneg;
if (((fc_conf->mode & RTE_ETH_FC_FULL) == RTE_ETH_FC_FULL) ||
(fc_conf->mode & RTE_ETH_FC_RX_PAUSE))
ethpause.rx_pause = 1;
else
ethpause.rx_pause = 0;
if (((fc_conf->mode & RTE_ETH_FC_FULL) == RTE_ETH_FC_FULL) ||
(fc_conf->mode & RTE_ETH_FC_TX_PAUSE))
ethpause.tx_pause = 1;
else
ethpause.tx_pause = 0;
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING,
"port %u ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)"
" failed: %s",
dev->data->port_id, strerror(rte_errno));
return ret;
}
return 0;
}
/**
* Handle asynchronous removal event for entire multiport device.
*
* @param sh
* Infiniband device shared context.
*/
static void
mlx5_dev_interrupt_device_fatal(struct mlx5_dev_ctx_shared *sh)
{
uint32_t i;
for (i = 0; i < sh->max_port; ++i) {
struct rte_eth_dev *dev;
if (sh->port[i].ih_port_id >= RTE_MAX_ETHPORTS) {
/*
* Or not existing port either no
* handler installed for this port.
*/
continue;
}
dev = &rte_eth_devices[sh->port[i].ih_port_id];
MLX5_ASSERT(dev);
if (dev->data->dev_conf.intr_conf.rmv)
rte_eth_dev_callback_process
(dev, RTE_ETH_EVENT_INTR_RMV, NULL);
}
}
static void
mlx5_dev_interrupt_nl_cb(struct nlmsghdr *hdr, void *cb_arg)
{
struct mlx5_dev_ctx_shared *sh = cb_arg;
uint32_t i;
uint32_t if_index;
if (mlx5_nl_parse_link_status_update(hdr, &if_index) < 0)
return;
for (i = 0; i < sh->max_port; i++) {
struct mlx5_dev_shared_port *port = &sh->port[i];
struct rte_eth_dev *dev;
struct mlx5_priv *priv;
if (port->nl_ih_port_id >= RTE_MAX_ETHPORTS)
continue;
dev = &rte_eth_devices[port->nl_ih_port_id];
/* Probing may initiate an LSC before configuration is done. */
if (dev->data->dev_configured &&
!dev->data->dev_conf.intr_conf.lsc)
break;
priv = dev->data->dev_private;
if (priv->if_index == if_index) {
/* Block logical LSC events. */
uint16_t prev_status = dev->data->dev_link.link_status;
if (mlx5_link_update(dev, 0) < 0)
DRV_LOG(ERR, "Failed to update link status: %s",
rte_strerror(rte_errno));
else if (prev_status != dev->data->dev_link.link_status)
rte_eth_dev_callback_process
(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
break;
}
}
}
void
mlx5_dev_interrupt_handler_nl(void *arg)
{
struct mlx5_dev_ctx_shared *sh = arg;
int nlsk_fd = rte_intr_fd_get(sh->intr_handle_nl);
if (nlsk_fd < 0)
return;
if (mlx5_nl_read_events(nlsk_fd, mlx5_dev_interrupt_nl_cb, sh) < 0)
DRV_LOG(ERR, "Failed to process Netlink events: %s",
rte_strerror(rte_errno));
}
/**
* Handle shared asynchronous events the NIC (removal event
* and link status change). Supports multiport IB device.
*
* @param cb_arg
* Callback argument.
*/
void
mlx5_dev_interrupt_handler(void *cb_arg)
{
struct mlx5_dev_ctx_shared *sh = cb_arg;
struct ibv_async_event event;
/* Read all message from the IB device and acknowledge them. */
for (;;) {
struct rte_eth_dev *dev;
uint32_t tmp;
if (mlx5_glue->get_async_event(sh->cdev->ctx, &event))
break;
/* Retrieve and check IB port index. */
tmp = (uint32_t)event.element.port_num;
if (!tmp && event.event_type == IBV_EVENT_DEVICE_FATAL) {
/*
* The DEVICE_FATAL event is called once for
* entire device without port specifying.
* We should notify all existing ports.
*/
mlx5_glue->ack_async_event(&event);
mlx5_dev_interrupt_device_fatal(sh);
continue;
}
MLX5_ASSERT(tmp && (tmp <= sh->max_port));
if (!tmp) {
/* Unsupported device level event. */
mlx5_glue->ack_async_event(&event);
DRV_LOG(DEBUG,
"unsupported common event (type %d)",
event.event_type);
continue;
}
if (tmp > sh->max_port) {
/* Invalid IB port index. */
mlx5_glue->ack_async_event(&event);
DRV_LOG(DEBUG,
"cannot handle an event (type %d)"
"due to invalid IB port index (%u)",
event.event_type, tmp);
continue;
}
if (sh->port[tmp - 1].ih_port_id >= RTE_MAX_ETHPORTS) {
/* No handler installed. */
mlx5_glue->ack_async_event(&event);
DRV_LOG(DEBUG,
"cannot handle an event (type %d)"
"due to no handler installed for port %u",
event.event_type, tmp);
continue;
}
/* Retrieve ethernet device descriptor. */
tmp = sh->port[tmp - 1].ih_port_id;
dev = &rte_eth_devices[tmp];
MLX5_ASSERT(dev);
DRV_LOG(DEBUG,
"port %u cannot handle an unknown event (type %d)",
dev->data->port_id, event.event_type);
mlx5_glue->ack_async_event(&event);
}
}
/**
* Handle DEVX interrupts from the NIC.
* This function is probably called from the DPDK host thread.
*
* @param cb_arg
* Callback argument.
*/
void
mlx5_dev_interrupt_handler_devx(void *cb_arg)
{
#ifndef HAVE_IBV_DEVX_ASYNC
(void)cb_arg;
return;
#else
struct mlx5_dev_ctx_shared *sh = cb_arg;
union {
struct mlx5dv_devx_async_cmd_hdr cmd_resp;
uint8_t buf[MLX5_ST_SZ_BYTES(query_flow_counter_out) +
MLX5_ST_SZ_BYTES(traffic_counter) +
sizeof(struct mlx5dv_devx_async_cmd_hdr)];
} out;
uint8_t *buf = out.buf + sizeof(out.cmd_resp);
while (!mlx5_glue->devx_get_async_cmd_comp(sh->devx_comp,
&out.cmd_resp,
sizeof(out.buf)))
mlx5_flow_async_pool_query_handle
(sh, (uint64_t)out.cmd_resp.wr_id,
mlx5_devx_get_out_command_status(buf));
#endif /* HAVE_IBV_DEVX_ASYNC */
}
/**
* DPDK callback to bring the link DOWN.
*
* @param dev
* Pointer to Ethernet device structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_set_link_down(struct rte_eth_dev *dev)
{
return mlx5_set_flags(dev, ~IFF_UP, ~IFF_UP);
}
/**
* DPDK callback to bring the link UP.
*
* @param dev
* Pointer to Ethernet device structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_set_link_up(struct rte_eth_dev *dev)
{
return mlx5_set_flags(dev, ~IFF_UP, IFF_UP);
}
/**
* Check if mlx5 device was removed.
*
* @param dev
* Pointer to Ethernet device structure.
*
* @return
* 1 when device is removed, otherwise 0.
*/
int
mlx5_is_removed(struct rte_eth_dev *dev)
{
struct ibv_device_attr device_attr;
struct mlx5_priv *priv = dev->data->dev_private;
if (mlx5_glue->query_device(priv->sh->cdev->ctx, &device_attr) == EIO)
return 1;
return 0;
}
/**
* Analyze gathered port parameters via sysfs to recognize master
* and representor devices for E-Switch configuration.
*
* @param[in] device_dir
* flag of presence of "device" directory under port device key.
* @param[inout] switch_info
* Port information, including port name as a number and port name
* type if recognized
*
* @return
* master and representor flags are set in switch_info according to
* recognized parameters (if any).
*/
static void
mlx5_sysfs_check_switch_info(bool device_dir,
struct mlx5_switch_info *switch_info)
{
switch (switch_info->name_type) {
case MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN:
/*
* Name is not recognized, assume the master,
* check the device directory presence.
*/
switch_info->master = device_dir;
break;
case MLX5_PHYS_PORT_NAME_TYPE_NOTSET:
/*
* Name is not set, this assumes the legacy naming
* schema for master, just check if there is
* a device directory.
*/
switch_info->master = device_dir;
break;
case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
/* New uplink naming schema recognized. */
switch_info->master = 1;
break;
case MLX5_PHYS_PORT_NAME_TYPE_LEGACY:
/* Legacy representors naming schema. */
switch_info->representor = !device_dir;
break;
case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
/* Fallthrough */
case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
/* Fallthrough */
case MLX5_PHYS_PORT_NAME_TYPE_PFSF:
/* New representors naming schema. */
switch_info->representor = 1;
break;
default:
switch_info->master = device_dir;
break;
}
}
/**
* Get switch information associated with network interface.
*
* @param ifindex
* Network interface index.
* @param[out] info
* Switch information object, populated in case of success.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
{
char ifname[IF_NAMESIZE];
char port_name[IF_NAMESIZE];
FILE *file;
struct mlx5_switch_info data = {
.master = 0,
.representor = 0,
.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET,
.port_name = 0,
.switch_id = 0,
};
DIR *dir;
bool port_switch_id_set = false;
bool device_dir = false;
char c;
if (!if_indextoname(ifindex, ifname)) {
rte_errno = errno;
return -rte_errno;
}
MKSTR(phys_port_name, "/sys/class/net/%s/phys_port_name",
ifname);
MKSTR(phys_switch_id, "/sys/class/net/%s/phys_switch_id",
ifname);
MKSTR(pci_device, "/sys/class/net/%s/device",
ifname);
file = fopen(phys_port_name, "rb");
if (file != NULL) {
if (fgets(port_name, IF_NAMESIZE, file) != NULL)
mlx5_translate_port_name(port_name, &data);
fclose(file);
}
file = fopen(phys_switch_id, "rb");
if (file == NULL) {
rte_errno = errno;
return -rte_errno;
}
port_switch_id_set =
fscanf(file, "%" SCNx64 "%c", &data.switch_id, &c) == 2 &&
c == '\n';
fclose(file);
dir = opendir(pci_device);
if (dir != NULL) {
closedir(dir);
device_dir = true;
}
if (port_switch_id_set) {
/* We have some E-Switch configuration. */
mlx5_sysfs_check_switch_info(device_dir, &data);
}
*info = data;
MLX5_ASSERT(!(data.master && data.representor));
if (data.master && data.representor) {
DRV_LOG(ERR, "ifindex %u device is recognized as master"
" and as representor", ifindex);
rte_errno = ENODEV;
return -rte_errno;
}
return 0;
}
/**
* Get bond information associated with network interface.
*
* @param pf_ifindex
* Network interface index of bond slave interface
* @param[out] ifindex
* Pointer to bond ifindex.
* @param[out] ifname
* Pointer to bond ifname.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_sysfs_bond_info(unsigned int pf_ifindex, unsigned int *ifindex,
char *ifname)
{
char name[IF_NAMESIZE];
FILE *file;
unsigned int index;
int ret;
if (!if_indextoname(pf_ifindex, name) || !strlen(name)) {
rte_errno = errno;
return -rte_errno;
}
MKSTR(bond_if, "/sys/class/net/%s/master/ifindex", name);
/* read bond ifindex */
file = fopen(bond_if, "rb");
if (file == NULL) {
rte_errno = errno;
return -rte_errno;
}
ret = fscanf(file, "%u", &index);
fclose(file);
if (ret <= 0) {
rte_errno = errno;
return -rte_errno;
}
if (ifindex)
*ifindex = index;
/* read bond device name from symbol link */
if (ifname) {
if (!if_indextoname(index, ifname)) {
rte_errno = errno;
return -rte_errno;
}
}
return 0;
}
/**
* 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) {
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) {
DRV_LOG(WARNING, "missing argument, cannot get module eeprom");
rte_errno = EINVAL;
return -rte_errno;
}
eeprom = mlx5_malloc(MLX5_MEM_ZERO,
(sizeof(struct ethtool_eeprom) + info->length), 0,
SOCKET_ID_ANY);
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);
mlx5_free(eeprom);
return ret;
}
/**
* Read device counters table.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] pf
* PF index in case of bonding device, -1 otherwise
* @param[out] stats
* Counters table output buffer.
*
* @return
* 0 on success and stats is filled, negative errno value otherwise and
* rte_errno is set.
*/
static int
_mlx5_os_read_dev_counters(struct rte_eth_dev *dev, int pf, uint64_t *stats)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
unsigned int i;
struct ifreq ifr;
unsigned int stats_sz = xstats_ctrl->stats_n * sizeof(uint64_t);
unsigned char et_stat_buf[sizeof(struct ethtool_stats) + stats_sz];
struct ethtool_stats *et_stats = (struct ethtool_stats *)et_stat_buf;
int ret;
et_stats->cmd = ETHTOOL_GSTATS;
et_stats->n_stats = xstats_ctrl->stats_n;
ifr.ifr_data = (caddr_t)et_stats;
if (pf >= 0)
ret = mlx5_ifreq_by_ifname(priv->sh->bond.ports[pf].ifname,
SIOCETHTOOL, &ifr);
else
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING,
"port %u unable to read statistic values from device",
dev->data->port_id);
return ret;
}
for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) {
if (xstats_ctrl->info[i].dev)
continue;
stats[i] += (uint64_t)
et_stats->data[xstats_ctrl->dev_table_idx[i]];
}
return 0;
}
/**
* Read device counters.
*
* @param dev
* Pointer to Ethernet device.
* @param[out] stats
* Counters table output buffer.
*
* @return
* 0 on success and stats is filled, negative errno value otherwise and
* rte_errno is set.
*/
int
mlx5_os_read_dev_counters(struct rte_eth_dev *dev, uint64_t *stats)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
int ret = 0, i;
memset(stats, 0, sizeof(*stats) * xstats_ctrl->mlx5_stats_n);
/* Read ifreq counters. */
if (priv->master && priv->pf_bond >= 0) {
/* Sum xstats from bonding device member ports. */
for (i = 0; i < priv->sh->bond.n_port; i++) {
ret = _mlx5_os_read_dev_counters(dev, i, stats);
if (ret)
return ret;
}
} else {
ret = _mlx5_os_read_dev_counters(dev, -1, stats);
if (ret)
return ret;
}
/* Read IB counters. */
for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) {
if (!xstats_ctrl->info[i].dev)
continue;
/* return last xstats counter if fail to read. */
if (mlx5_os_read_dev_stat(priv, xstats_ctrl->info[i].ctr_name,
&stats[i]) == 0)
xstats_ctrl->xstats[i] = stats[i];
else
stats[i] = xstats_ctrl->xstats[i];
}
return ret;
}
/**
* Query the number of statistics provided by ETHTOOL.
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* Number of statistics on success, negative errno value otherwise and
* rte_errno is set.
*/
int
mlx5_os_get_stats_n(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct ethtool_drvinfo drvinfo;
struct ifreq ifr;
int ret;
drvinfo.cmd = ETHTOOL_GDRVINFO;
ifr.ifr_data = (caddr_t)&drvinfo;
if (priv->master && priv->pf_bond >= 0)
/* Bonding PF. */
ret = mlx5_ifreq_by_ifname(priv->sh->bond.ports[0].ifname,
SIOCETHTOOL, &ifr);
else
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u unable to query number of statistics",
dev->data->port_id);
return ret;
}
return drvinfo.n_stats;
}
static const struct mlx5_counter_ctrl mlx5_counters_init[] = {
{
.dpdk_name = "rx_unicast_bytes",
.ctr_name = "rx_vport_unicast_bytes",
},
{
.dpdk_name = "rx_multicast_bytes",
.ctr_name = "rx_vport_multicast_bytes",
},
{
.dpdk_name = "rx_broadcast_bytes",
.ctr_name = "rx_vport_broadcast_bytes",
},
{
.dpdk_name = "rx_unicast_packets",
.ctr_name = "rx_vport_unicast_packets",
},
{
.dpdk_name = "rx_multicast_packets",
.ctr_name = "rx_vport_multicast_packets",
},
{
.dpdk_name = "rx_broadcast_packets",
.ctr_name = "rx_vport_broadcast_packets",
},
{
.dpdk_name = "tx_unicast_bytes",
.ctr_name = "tx_vport_unicast_bytes",
},
{
.dpdk_name = "tx_multicast_bytes",
.ctr_name = "tx_vport_multicast_bytes",
},
{
.dpdk_name = "tx_broadcast_bytes",
.ctr_name = "tx_vport_broadcast_bytes",
},
{
.dpdk_name = "tx_unicast_packets",
.ctr_name = "tx_vport_unicast_packets",
},
{
.dpdk_name = "tx_multicast_packets",
.ctr_name = "tx_vport_multicast_packets",
},
{
.dpdk_name = "tx_broadcast_packets",
.ctr_name = "tx_vport_broadcast_packets",
},
{
.dpdk_name = "rx_wqe_errors",
.ctr_name = "rx_wqe_err",
},
{
.dpdk_name = "rx_phy_crc_errors",
.ctr_name = "rx_crc_errors_phy",
},
{
.dpdk_name = "rx_phy_in_range_len_errors",
.ctr_name = "rx_in_range_len_errors_phy",
},
{
.dpdk_name = "rx_phy_symbol_errors",
.ctr_name = "rx_symbol_err_phy",
},
{
.dpdk_name = "tx_phy_errors",
.ctr_name = "tx_errors_phy",
},
{
.dpdk_name = "rx_out_of_buffer",
.ctr_name = "out_of_buffer",
.dev = 1,
},
{
.dpdk_name = "tx_phy_packets",
.ctr_name = "tx_packets_phy",
},
{
.dpdk_name = "rx_phy_packets",
.ctr_name = "rx_packets_phy",
},
{
.dpdk_name = "tx_phy_discard_packets",
.ctr_name = "tx_discards_phy",
},
{
.dpdk_name = "rx_phy_discard_packets",
.ctr_name = "rx_discards_phy",
},
{
.dpdk_name = "rx_prio0_buf_discard_packets",
.ctr_name = "rx_prio0_buf_discard",
},
{
.dpdk_name = "rx_prio1_buf_discard_packets",
.ctr_name = "rx_prio1_buf_discard",
},
{
.dpdk_name = "rx_prio2_buf_discard_packets",
.ctr_name = "rx_prio2_buf_discard",
},
{
.dpdk_name = "rx_prio3_buf_discard_packets",
.ctr_name = "rx_prio3_buf_discard",
},
{
.dpdk_name = "rx_prio4_buf_discard_packets",
.ctr_name = "rx_prio4_buf_discard",
},
{
.dpdk_name = "rx_prio5_buf_discard_packets",
.ctr_name = "rx_prio5_buf_discard",
},
{
.dpdk_name = "rx_prio6_buf_discard_packets",
.ctr_name = "rx_prio6_buf_discard",
},
{
.dpdk_name = "rx_prio7_buf_discard_packets",
.ctr_name = "rx_prio7_buf_discard",
},
{
.dpdk_name = "rx_prio0_cong_discard_packets",
.ctr_name = "rx_prio0_cong_discard",
},
{
.dpdk_name = "rx_prio1_cong_discard_packets",
.ctr_name = "rx_prio1_cong_discard",
},
{
.dpdk_name = "rx_prio2_cong_discard_packets",
.ctr_name = "rx_prio2_cong_discard",
},
{
.dpdk_name = "rx_prio3_cong_discard_packets",
.ctr_name = "rx_prio3_cong_discard",
},
{
.dpdk_name = "rx_prio4_cong_discard_packets",
.ctr_name = "rx_prio4_cong_discard",
},
{
.dpdk_name = "rx_prio5_cong_discard_packets",
.ctr_name = "rx_prio5_cong_discard",
},
{
.dpdk_name = "rx_prio6_cong_discard_packets",
.ctr_name = "rx_prio6_cong_discard",
},
{
.dpdk_name = "rx_prio7_cong_discard_packets",
.ctr_name = "rx_prio7_cong_discard",
},
{
.dpdk_name = "tx_phy_bytes",
.ctr_name = "tx_bytes_phy",
},
{
.dpdk_name = "rx_phy_bytes",
.ctr_name = "rx_bytes_phy",
},
/* Representor only */
{
.dpdk_name = "rx_vport_packets",
.ctr_name = "vport_rx_packets",
},
{
.dpdk_name = "rx_vport_bytes",
.ctr_name = "vport_rx_bytes",
},
{
.dpdk_name = "tx_vport_packets",
.ctr_name = "vport_tx_packets",
},
{
.dpdk_name = "tx_vport_bytes",
.ctr_name = "vport_tx_bytes",
},
};
static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init);
/**
* Init the structures to read device counters.
*
* @param dev
* Pointer to Ethernet device.
*/
void
mlx5_os_stats_init(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
struct mlx5_stats_ctrl *stats_ctrl = &priv->stats_ctrl;
unsigned int i;
unsigned int j;
struct ifreq ifr;
struct ethtool_gstrings *strings = NULL;
unsigned int dev_stats_n;
unsigned int str_sz;
int ret;
/* So that it won't aggregate for each init. */
xstats_ctrl->mlx5_stats_n = 0;
ret = mlx5_os_get_stats_n(dev);
if (ret < 0) {
DRV_LOG(WARNING, "port %u no extended statistics available",
dev->data->port_id);
return;
}
dev_stats_n = ret;
/* Allocate memory to grab stat names and values. */
str_sz = dev_stats_n * ETH_GSTRING_LEN;
strings = (struct ethtool_gstrings *)
mlx5_malloc(0, str_sz + sizeof(struct ethtool_gstrings), 0,
SOCKET_ID_ANY);
if (!strings) {
DRV_LOG(WARNING, "port %u unable to allocate memory for xstats",
dev->data->port_id);
return;
}
strings->cmd = ETHTOOL_GSTRINGS;
strings->string_set = ETH_SS_STATS;
strings->len = dev_stats_n;
ifr.ifr_data = (caddr_t)strings;
if (priv->master && priv->pf_bond >= 0)
/* Bonding master. */
ret = mlx5_ifreq_by_ifname(priv->sh->bond.ports[0].ifname,
SIOCETHTOOL, &ifr);
else
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u unable to get statistic names",
dev->data->port_id);
goto free;
}
for (i = 0; i != dev_stats_n; ++i) {
const char *curr_string = (const char *)
&strings->data[i * ETH_GSTRING_LEN];
for (j = 0; j != xstats_n; ++j) {
if (!strcmp(mlx5_counters_init[j].ctr_name,
curr_string)) {
unsigned int idx = xstats_ctrl->mlx5_stats_n++;
xstats_ctrl->dev_table_idx[idx] = i;
xstats_ctrl->info[idx] = mlx5_counters_init[j];
break;
}
}
}
/* Add dev counters. */
MLX5_ASSERT(xstats_ctrl->mlx5_stats_n <= MLX5_MAX_XSTATS);
for (i = 0; i != xstats_n; ++i) {
if (mlx5_counters_init[i].dev) {
unsigned int idx = xstats_ctrl->mlx5_stats_n++;
xstats_ctrl->info[idx] = mlx5_counters_init[i];
xstats_ctrl->hw_stats[idx] = 0;
}
}
xstats_ctrl->stats_n = dev_stats_n;
/* Copy to base at first time. */
ret = mlx5_os_read_dev_counters(dev, xstats_ctrl->base);
if (ret)
DRV_LOG(ERR, "port %u cannot read device counters: %s",
dev->data->port_id, strerror(rte_errno));
mlx5_os_read_dev_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base);
stats_ctrl->imissed = 0;
free:
mlx5_free(strings);
}
/**
* 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)[RTE_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, RTE_ETHER_ADDR_LEN);
return 0;
}
/*
* Query dropless_rq private flag value provided by ETHTOOL.
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* - 0 on success, flag is not set.
* - 1 on success, flag is set.
* - negative errno value otherwise and rte_errno is set.
*/
int mlx5_get_flag_dropless_rq(struct rte_eth_dev *dev)
{
struct ethtool_sset_info *sset_info = NULL;
struct ethtool_drvinfo drvinfo;
struct ifreq ifr;
struct ethtool_gstrings *strings = NULL;
struct ethtool_value flags;
const int32_t flag_len = sizeof(flags.data) * CHAR_BIT;
int32_t str_sz;
int32_t len;
int32_t i;
int ret;
sset_info = mlx5_malloc(0, sizeof(struct ethtool_sset_info) +
sizeof(uint32_t), 0, SOCKET_ID_ANY);
if (sset_info == NULL) {
rte_errno = ENOMEM;
return -rte_errno;
}
sset_info->cmd = ETHTOOL_GSSET_INFO;
sset_info->reserved = 0;
sset_info->sset_mask = 1ULL << ETH_SS_PRIV_FLAGS;
ifr.ifr_data = (caddr_t)&sset_info;
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (!ret) {
const uint32_t *sset_lengths = sset_info->data;
len = sset_info->sset_mask ? sset_lengths[0] : 0;
} else if (ret == -EOPNOTSUPP) {
drvinfo.cmd = ETHTOOL_GDRVINFO;
ifr.ifr_data = (caddr_t)&drvinfo;
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u cannot get the driver info",
dev->data->port_id);
goto exit;
}
len = *(uint32_t *)((char *)&drvinfo +
offsetof(struct ethtool_drvinfo, n_priv_flags));
} else {
DRV_LOG(WARNING, "port %u cannot get the sset info",
dev->data->port_id);
goto exit;
}
if (!len) {
DRV_LOG(WARNING, "port %u does not have private flag",
dev->data->port_id);
rte_errno = EOPNOTSUPP;
ret = -rte_errno;
goto exit;
} else if (len > flag_len) {
DRV_LOG(WARNING, "port %u maximal private flags number is %d",
dev->data->port_id, flag_len);
len = flag_len;
}
str_sz = ETH_GSTRING_LEN * len;
strings = (struct ethtool_gstrings *)
mlx5_malloc(0, str_sz + sizeof(struct ethtool_gstrings), 0,
SOCKET_ID_ANY);
if (!strings) {
DRV_LOG(WARNING, "port %u unable to allocate memory for"
" private flags", dev->data->port_id);
rte_errno = ENOMEM;
ret = -rte_errno;
goto exit;
}
strings->cmd = ETHTOOL_GSTRINGS;
strings->string_set = ETH_SS_PRIV_FLAGS;
strings->len = len;
ifr.ifr_data = (caddr_t)strings;
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u unable to get private flags strings",
dev->data->port_id);
goto exit;
}
for (i = 0; i < len; i++) {
strings->data[(i + 1) * ETH_GSTRING_LEN - 1] = 0;
if (!strcmp((const char *)strings->data + i * ETH_GSTRING_LEN,
"dropless_rq"))
break;
}
if (i == len) {
DRV_LOG(WARNING, "port %u does not support dropless_rq",
dev->data->port_id);
rte_errno = EOPNOTSUPP;
ret = -rte_errno;
goto exit;
}
flags.cmd = ETHTOOL_GPFLAGS;
ifr.ifr_data = (caddr_t)&flags;
ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
if (ret) {
DRV_LOG(WARNING, "port %u unable to get private flags status",
dev->data->port_id);
goto exit;
}
ret = !!(flags.data & (1U << i));
exit:
mlx5_free(strings);
mlx5_free(sset_info);
return ret;
}
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