Hi Adrien,
> -----Original Message-----
> From: dev <dev-boun...@dpdk.org> On Behalf Of Adrien Mazarguil
> Sent: Saturday, May 26, 2018 12:35 AM
> To: Shahaf Shuler <shah...@mellanox.com>
> Cc: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH 6/7] net/mlx5: probe all port representors
>
> Probe existing port representors in addition to their master device and
> associate them automatically.
>
> To avoid name collision between Ethernet devices, their names use the same
> convention as ixgbe and
> i40e PMDs, that is, instead of only a PCI address in DBDF notation:
>
> - "net_{DBDF}_0" for master/switch devices.
> - "net_{DBDF}_representor_{rep}" with "rep" starting from 0 for port
> representors.
>
> Both optionally suffixed with "_port_{num}" instead of " port {num}" for
> devices that expose several
> Verbs ports (note this is never the case on mlx5, but kept for historical
> reasons for the time being).
>
> (Patch based on prior work from Yuanhan Liu)
>
> Signed-off-by: Adrien Mazarguil <adrien.mazarg...@6wind.com>
> ---
> drivers/net/mlx5/mlx5.c | 119 ++++++++++++++++++++---------
> drivers/net/mlx5/mlx5.h | 8 +-
> drivers/net/mlx5/mlx5_ethdev.c | 145 ++++++++++++++++++++++++++++++++----
> drivers/net/mlx5/mlx5_mac.c | 2 +-
> drivers/net/mlx5/mlx5_stats.c | 6 +-
> 5 files changed, 226 insertions(+), 54 deletions(-)
>
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index
> d3a298332..09afca63c 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -301,6 +301,9 @@ mlx5_dev_close(struct rte_eth_dev *dev)
> if (ret)
> DRV_LOG(WARNING, "port %u some flows still remain",
> dev->data->port_id);
> + if (!priv->representor &&
> + priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
> + claim_zero(rte_eth_switch_domain_free(priv->domain_id));
> memset(priv, 0, sizeof(*priv));
> }
>
> @@ -645,6 +648,10 @@ mlx5_uar_init_secondary(struct rte_eth_dev *dev)
> * Verbs device attributes.
> * @param port
> * Verbs port to use (indexed from 1).
> + * @param master
> + * Master device in case @p ibv_dev is a port representor.
> + * @param rep_id
> + * Representor identifier when @p master is non-NULL.
> *
> * @return
> * A valid Ethernet device object on success, NULL otherwise and rte_errno
> @@ -655,7 +662,9 @@ mlx5_dev_spawn_one(struct rte_device *dpdk_dev,
> struct ibv_device *ibv_dev,
> int vf,
> const struct ibv_device_attr_ex *attr,
> - unsigned int port)
> + unsigned int port,
> + struct rte_eth_dev *master,
> + unsigned int rep_id)
> {
> struct ibv_context *ctx;
> struct ibv_port_attr port_attr;
> @@ -799,11 +808,14 @@ mlx5_dev_spawn_one(struct rte_device *dpdk_dev,
> " old OFED/rdma-core version or firmware configuration");
> #endif
> config.mpls_en = mpls_en;
> - if (attr->orig_attr.phys_port_cnt > 1)
> - snprintf(name, sizeof(name), "%s", dpdk_dev->name);
> + if (!master)
> + snprintf(name, sizeof(name), "net_%s_0", dpdk_dev->name);
> else
> - snprintf(name, sizeof(name), "%s port %u",
> - dpdk_dev->name, port);
> + snprintf(name, sizeof(name), "net_%s_representor_%u",
> + dpdk_dev->name, rep_id);
> + if (attr->orig_attr.phys_port_cnt > 1)
> + snprintf(name, sizeof(name), "%s_port_%u", name, port);
> + DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
> if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
> eth_dev = rte_eth_dev_attach_secondary(name);
> if (eth_dev == NULL) {
> @@ -880,6 +892,27 @@ mlx5_dev_spawn_one(struct rte_device *dpdk_dev,
> priv->port = port;
> priv->pd = pd;
> priv->mtu = ETHER_MTU;
> + /*
> + * Allocate a switch domain for master devices and share it with
> + * port representors.
> + */
> + if (!master) {
> + priv->representor = 0;
> + priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
> + priv->rep_id = 0;
> + err = rte_eth_switch_domain_alloc(&priv->domain_id);
So domain_id is used to identify relation between PF and representor port?
> + if (err) {
> + err = rte_errno;
> + DRV_LOG(ERR, "unable to allocate switch domain: %s",
> + strerror(rte_errno));
> + goto error;
> + }
> + } else {
> + priv->representor = 1;
> + priv->domain_id =
> + ((struct priv *)master->data->dev_private)->domain_id;
> + priv->rep_id = rep_id;
> + }
> err = mlx5_args(&config, dpdk_dev->devargs);
> if (err) {
> err = rte_errno;
> @@ -1067,8 +1100,12 @@ mlx5_dev_spawn_one(struct rte_device *dpdk_dev,
> rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
> return eth_dev;
> error:
> - if (priv)
> + if (priv) {
> + if (!priv->representor &&
> + priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
> + claim_zero(rte_eth_switch_domain_free(priv->domain_id));
> rte_free(priv);
> + }
> if (pd)
> claim_zero(mlx5_glue->dealloc_pd(pd));
> if (eth_dev)
> @@ -1081,12 +1118,14 @@ mlx5_dev_spawn_one(struct rte_device *dpdk_dev, }
>
> /**
> - * Spawn Ethernet devices from Verbs information, one per detected port.
> + * Spawn Ethernet devices from Verbs information, one per detected port
> + and
> + * port representor.
> *
> * @param dpdk_dev
> * Backing DPDK device.
> * @param ibv_dev
> - * Verbs device.
> + * NULL-terminated list of Verbs devices. First entry is the master device
> + * (mandatory), followed by optional representors.
> * @param vf
> * If nonzero, enable VF-specific features.
> *
> @@ -1097,17 +1136,21 @@ mlx5_dev_spawn_one(struct rte_device *dpdk_dev,
> */
> static struct rte_eth_dev **
> mlx5_dev_spawn(struct rte_device *dpdk_dev,
> - struct ibv_device *ibv_dev,
> + struct ibv_device **ibv_dev,
> int vf)
> {
> struct rte_eth_dev **eth_list = NULL;
> struct ibv_context *ctx;
> struct ibv_device_attr_ex attr;
> + void *tmp;
> unsigned int i;
> + unsigned int j = 0;
> + unsigned int n = 0;
> int ret;
>
> +next:
> errno = 0;
> - ctx = mlx5_glue->open_device(ibv_dev);
> + ctx = mlx5_glue->open_device(ibv_dev[j]);
> if (!ctx) {
> rte_errno = errno ? errno : ENODEV;
> if (rte_errno == ENODEV)
> @@ -1116,7 +1159,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
> else
> DRV_LOG(ERR,
> "cannot use device, are drivers up to date?");
> - return NULL;
> + goto error;
> }
> ret = mlx5_glue->query_device_ex(ctx, NULL, &attr);
> mlx5_glue->close_device(ctx);
> @@ -1124,34 +1167,42 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
> rte_errno = ret;
> DRV_LOG(ERR, "unable to query device information: %s",
> strerror(rte_errno));
> - return NULL;
> + goto error;
> }
> - DRV_LOG(INFO, "%u port(s) detected", attr.orig_attr.phys_port_cnt);
> - eth_list = malloc(sizeof(*eth_list) *
> - (attr.orig_attr.phys_port_cnt + 1));
> - if (!eth_list) {
> + DRV_LOG(INFO, "%u port(s) detected on \"%s\"",
> + attr.orig_attr.phys_port_cnt, ibv_dev[j]->name);
> + tmp = realloc(eth_list, sizeof(*eth_list) *
> + (n + attr.orig_attr.phys_port_cnt + 1));
> + if (!tmp) {
> rte_errno = errno;
> - return NULL;
> + goto error;
> }
> + eth_list = tmp;
> for (i = 0; i < attr.orig_attr.phys_port_cnt; ++i) {
Is there any mlx5 device that support more than physical ports on same PCI id?
I remember this is major difference between mlx5 and mlx4.
> - eth_list[i] = mlx5_dev_spawn_one(dpdk_dev, ibv_dev, vf,
> - &attr, i + 1);
> - if (eth_list[i])
> - continue;
> - /* Save rte_errno and roll back in case of failure. */
> - ret = rte_errno;
> - while (i--) {
> - mlx5_dev_close(eth_list[i]);
> - if (rte_eal_process_type() == RTE_PROC_PRIMARY)
> - rte_free(eth_list[i]->data->dev_private);
> - claim_zero(rte_eth_dev_release_port(eth_list[i]));
> - }
> - free(eth_list);
> - rte_errno = ret;
> - return NULL;
> + eth_list[n] = mlx5_dev_spawn_one(dpdk_dev, ibv_dev[j], vf,
> + &attr, i + 1,
> + j ? eth_list[0] : NULL,
> + j - 1);
> + if (!eth_list[n])
> + goto error;
> + ++n;
> }
> - eth_list[i] = NULL;
> + if (ibv_dev[++j])
> + goto next;
> + eth_list[n] = NULL;
> return eth_list;
> +error:
> + /* Save rte_errno and roll back in case of failure. */
> + ret = rte_errno;
> + while (n--) {
> + mlx5_dev_close(eth_list[n]);
> + if (rte_eal_process_type() == RTE_PROC_PRIMARY)
> + rte_free(eth_list[n]->data->dev_private);
> + claim_zero(rte_eth_dev_release_port(eth_list[n]));
> + }
> + free(eth_list);
> + rte_errno = ret;
> + return NULL;
> }
>
> /**
> @@ -1264,7 +1315,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv
> __rte_unused,
> ibv_match[ret]->name, ret - 1);
> }
> if (n)
> - eth_list = mlx5_dev_spawn(&pci_dev->device, ibv_match[0], vf);
> + eth_list = mlx5_dev_spawn(&pci_dev->device, ibv_match, vf);
> mlx5_glue->free_device_list(ibv_list);
> if (!eth_list || !*eth_list) {
> DRV_LOG(WARNING,
> diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index
> 997b04a33..b38cb37a9 100644
> --- a/drivers/net/mlx5/mlx5.h
> +++ b/drivers/net/mlx5/mlx5.h
> @@ -161,6 +161,9 @@ struct priv {
> uint16_t mtu; /* Configured MTU. */
> uint8_t port; /* Physical port number. */
> unsigned int isolated:1; /* Whether isolated mode is enabled. */
> + unsigned int representor:1; /* Device is a port representor. */
> + uint16_t domain_id; /* Switch domain identifier. */
> + unsigned int rep_id; /* Port representor identifier. */
> /* RX/TX queues. */
> unsigned int rxqs_n; /* RX queues array size. */
> unsigned int txqs_n; /* TX queues array size. */ @@ -209,9 +212,12 @@
> int mlx5_getenv_int(const
> char *);
>
> /* mlx5_ethdev.c */
>
> +int mlx5_get_master_ifname(const struct rte_eth_dev *dev,
> + char (*ifname)[IF_NAMESIZE]);
> int mlx5_get_ifname(const struct rte_eth_dev *dev, char
> (*ifname)[IF_NAMESIZE]); int
> mlx5_ifindex(const struct rte_eth_dev *dev); -int mlx5_ifreq(const struct
> rte_eth_dev *dev, int req,
> struct ifreq *ifr);
> +int mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr,
> + int master);
> int mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu); int
> mlx5_set_flags(struct rte_eth_dev *dev,
> unsigned int keep,
> unsigned int flags);
> diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
> index
> f6cebae41..361b7ee4c 100644
> --- a/drivers/net/mlx5/mlx5_ethdev.c
> +++ b/drivers/net/mlx5/mlx5_ethdev.c
> @@ -93,7 +93,7 @@ struct ethtool_link_settings { #endif
>
> /**
> - * Get interface name from private structure.
> + * Get master interface name from private structure.
> *
> * @param[in] dev
> * Pointer to Ethernet device.
> @@ -104,7 +104,8 @@ struct ethtool_link_settings {
> * 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)[IF_NAMESIZE])
> +mlx5_get_master_ifname(const struct rte_eth_dev *dev,
> + char (*ifname)[IF_NAMESIZE])
> {
> struct priv *priv = dev->data->dev_private;
> DIR *dir;
> @@ -179,6 +180,113 @@ mlx5_get_ifname(const struct rte_eth_dev *dev, char
> (*ifname)[IF_NAMESIZE]) }
>
> /**
> + * Get interface name from private structure.
> + *
> + * This is a port representor-aware version of mlx5_get_master_ifname().
> + *
> + * @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)[IF_NAMESIZE]) {
> + struct priv *priv = dev->data->dev_private;
> + int ret;
> + char master[IF_NAMESIZE];
> + FILE *file;
> + DIR *dir;
> + uint64_t phys_switch_id;
> +
> + if (!priv->representor)
> + return mlx5_get_master_ifname(dev, ifname);
> + ret = mlx5_get_master_ifname(dev, &master);
> + if (ret)
> + return ret;
> + {
> + MKSTR(path, "%s/device/net/%s/phys_switch_id",
> + priv->ibdev_path, master);
> +
> + file = fopen(path, "rb");
> + }
> + if (!file) {
> + rte_errno = errno;
> + return -rte_errno;
> + }
> + ret = fscanf(file, "%" SCNx64, &phys_switch_id);
> + fclose(file);
> + if (ret != 1) {
> + rte_errno = EINVAL;
> + return -rte_errno;
> + }
> + {
> + MKSTR(path, "%s/device/net/%s/subsystem",
> + priv->ibdev_path, master);
> +
> + dir = opendir(path);
> + }
> + if (!dir) {
> + rte_errno = errno;
> + return -rte_errno;
> + }
> + /*
> + * Scan network interfaces to find one with matching phys_switch_id
> + * and phys_switch_name.
> + */
> + do {
> + struct dirent *dent;
> + uint64_t phys_switch_id_rep;
> + int rep_id;
> +
> + ret = -ENOENT;
> + dent = readdir(dir);
> + if (!dent)
> + break;
> + {
> + MKSTR(path,
> + "%s/device/net/%s/subsystem/%s/phys_switch_id",
> + priv->ibdev_path, master, dent->d_name);
> +
> + file = fopen(path, "rb");
> + }
> + if (!file)
> + continue;
> + ret = fscanf(file, "%" SCNx64, &phys_switch_id_rep);
> + fclose(file);
> + if (ret != 1)
> + continue;
> + if (phys_switch_id_rep != phys_switch_id)
> + continue;
> + {
> + MKSTR(path,
> + "%s/device/net/%s/subsystem/%s/phys_port_name",
> + priv->ibdev_path, master, dent->d_name);
> +
> + file = fopen(path, "rb");
> + }
> + if (!file)
> + continue;
> + ret = fscanf(file, "%d", &rep_id);
> + fclose(file);
> + if (ret != 1)
> + continue;
> + if (rep_id < 0 || (unsigned int)rep_id != priv->rep_id)
> + continue;
> + strlcpy(*ifname, dent->d_name, sizeof(*ifname));
> + ret = 0;
> + break;
> + } while (1);
> + closedir(dir);
> + if (ret)
> + rte_errno = -ret;
> + return ret;
> +}
> +
> +/**
> * Get the interface index from device name.
> *
> * @param[in] dev
> @@ -214,12 +322,16 @@ mlx5_ifindex(const struct rte_eth_dev *dev)
> * Request number to pass to ioctl().
> * @param[out] ifr
> * Interface request structure output buffer.
> + * @param master
> + * When device is a port representor, perform request on master device
> + * instead.
> *
> * @return
> * 0 on success, a negative errno value otherwise and rte_errno is set.
> */
> int
> -mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
> +mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr,
> + int master)
> {
> int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
> int ret = 0;
> @@ -228,7 +340,10 @@ mlx5_ifreq(const struct rte_eth_dev *dev, int req,
> struct ifreq *ifr)
> rte_errno = errno;
> return -rte_errno;
> }
> - ret = mlx5_get_ifname(dev, &ifr->ifr_name);
> + if (master)
> + ret = mlx5_get_master_ifname(dev, &ifr->ifr_name);
> + else
> + ret = mlx5_get_ifname(dev, &ifr->ifr_name);
> if (ret)
> goto error;
> ret = ioctl(sock, req, ifr);
> @@ -258,7 +373,7 @@ int
> mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu) {
> struct ifreq request;
> - int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request);
> + int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request, 0);
>
> if (ret)
> return ret;
> @@ -282,7 +397,7 @@ mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) {
> struct ifreq request = { .ifr_mtu = mtu, };
>
> - return mlx5_ifreq(dev, SIOCSIFMTU, &request);
> + return mlx5_ifreq(dev, SIOCSIFMTU, &request, 0);
> }
>
> /**
> @@ -302,13 +417,13 @@ 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);
> + int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request, 0);
>
> if (ret)
> return ret;
> request.ifr_flags &= keep;
> request.ifr_flags |= flags & ~keep;
> - return mlx5_ifreq(dev, SIOCSIFFLAGS, &request);
> + return mlx5_ifreq(dev, SIOCSIFFLAGS, &request, 0);
> }
>
> /**
> @@ -551,7 +666,7 @@ mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev,
> int link_speed = 0;
> int ret;
>
> - ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
> + ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
> dev->data->port_id, strerror(rte_errno)); @@ -561,7
> +676,7 @@
> mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev,
> dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
> (ifr.ifr_flags & IFF_RUNNING));
> ifr.ifr_data = (void *)&edata;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING,
> "port %u ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s",
> @@ -622,7 +737,7 @@
> mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
> uint64_t sc;
> int ret;
>
> - ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
> + ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
> dev->data->port_id, strerror(rte_errno)); @@ -632,7
> +747,7 @@
> mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
> dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
> (ifr.ifr_flags & IFF_RUNNING));
> ifr.ifr_data = (void *)&gcmd;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(DEBUG,
> "port %u ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS)"
> @@ -649,7 +764,7 @@ mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
>
> *ecmd = gcmd;
> ifr.ifr_data = (void *)ecmd;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(DEBUG,
> "port %u ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS)"
> @@ -812,7 +927,7 @@ mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct
> rte_eth_fc_conf *fc_conf)
> int ret;
>
> ifr.ifr_data = (void *)ðpause;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING,
> "port %u ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)
> failed:"
> @@ -865,7 +980,7 @@ mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct
> rte_eth_fc_conf *fc_conf)
> ethpause.tx_pause = 1;
> else
> ethpause.tx_pause = 0;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 0);
> if (ret) {
> DRV_LOG(WARNING,
> "port %u ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)"
> diff --git a/drivers/net/mlx5/mlx5_mac.c b/drivers/net/mlx5/mlx5_mac.c index
> 672a47619..12ee37f55
> 100644
> --- a/drivers/net/mlx5/mlx5_mac.c
> +++ b/drivers/net/mlx5/mlx5_mac.c
> @@ -49,7 +49,7 @@ 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);
> + ret = mlx5_ifreq(dev, SIOCGIFHWADDR, &request, 0);
> if (ret)
> return ret;
> memcpy(mac, request.ifr_hwaddr.sa_data, ETHER_ADDR_LEN); diff --git
> a/drivers/net/mlx5/mlx5_stats.c b/drivers/net/mlx5/mlx5_stats.c index
> 875dd1027..91f3d474a 100644
> --- a/drivers/net/mlx5/mlx5_stats.c
> +++ b/drivers/net/mlx5/mlx5_stats.c
> @@ -146,7 +146,7 @@ mlx5_read_dev_counters(struct rte_eth_dev *dev, uint64_t
> *stats)
> et_stats->cmd = ETHTOOL_GSTATS;
> et_stats->n_stats = xstats_ctrl->stats_n;
> ifr.ifr_data = (caddr_t)et_stats;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING,
> "port %u unable to read statistic values from device",
> @@ -194,7 +194,7 @@
> mlx5_ethtool_get_stats_n(struct rte_eth_dev *dev) {
>
> drvinfo.cmd = ETHTOOL_GDRVINFO;
> ifr.ifr_data = (caddr_t)&drvinfo;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING, "port %u unable to query number of statistics",
> dev->data->port_id);
> @@ -244,7 +244,7 @@ mlx5_xstats_init(struct rte_eth_dev *dev)
> strings->string_set = ETH_SS_STATS;
> strings->len = dev_stats_n;
> ifr.ifr_data = (caddr_t)strings;
> - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
> + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1);
> if (ret) {
> DRV_LOG(WARNING, "port %u unable to get statistic names",
> dev->data->port_id);
> --
> 2.11.0
