/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2015 6WIND S.A.
- * Copyright 2015 Mellanox.
+ * Copyright 2015 Mellanox Technologies, Ltd
*/
-#define _GNU_SOURCE
-
#include <stddef.h>
#include <assert.h>
#include <inttypes.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
-#include <sys/utsname.h>
#include <netinet/in.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
-#include <linux/version.h>
#include <fcntl.h>
#include <stdalign.h>
#include <sys/un.h>
+#include <time.h>
#include <rte_atomic.h>
#include <rte_ethdev_driver.h>
#include <rte_mbuf.h>
#include <rte_common.h>
#include <rte_interrupts.h>
-#include <rte_alarm.h>
#include <rte_malloc.h>
+#include <rte_string_fns.h>
+#include <rte_rwlock.h>
#include "mlx5.h"
#include "mlx5_glue.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 {
#endif
/**
- * Get interface name from private structure.
+ * Get master interface name from private structure.
*
* @param[in] dev
* Pointer to Ethernet device.
* @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])
+static int
+mlx5_get_master_ifname(const struct rte_eth_dev *dev,
+ char (*ifname)[IF_NAMESIZE])
{
struct priv *priv = dev->data->dev_private;
DIR *dir;
if (dev_port == dev_port_prev)
goto try_dev_id;
dev_port_prev = dev_port;
- if (dev_port == (priv->port - 1u))
- snprintf(match, sizeof(match), "%s", name);
+ if (dev_port == 0)
+ strlcpy(match, name, sizeof(match));
}
closedir(dir);
if (match[0] == '\0') {
return 0;
}
+/**
+ * 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;
+ unsigned int ifindex =
+ priv->nl_socket_rdma >= 0 ?
+ mlx5_nl_ifindex(priv->nl_socket_rdma, priv->ibdev_name) : 0;
+
+ if (!ifindex) {
+ if (!priv->representor)
+ return mlx5_get_master_ifname(dev, ifname);
+ rte_errno = ENXIO;
+ return -rte_errno;
+ }
+ if (if_indextoname(ifindex, &(*ifname)[0]))
+ return 0;
+ rte_errno = errno;
+ return -rte_errno;
+}
+
+/**
+ * Get the interface index from device name.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ *
+ * @return
+ * Nonzero interface index on success, zero otherwise and rte_errno is set.
+ */
+unsigned int
+mlx5_ifindex(const struct rte_eth_dev *dev)
+{
+ char ifname[IF_NAMESIZE];
+ unsigned int ifindex;
+
+ if (mlx5_get_ifname(dev, &ifname))
+ return 0;
+ ifindex = if_nametoindex(ifname);
+ if (!ifindex)
+ rte_errno = errno;
+ return ifindex;
+}
+
/**
* Perform ifreq ioctl() on associated Ethernet device.
*
unsigned int reta_idx_n;
const uint8_t use_app_rss_key =
!!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key;
- uint64_t supp_tx_offloads = mlx5_get_tx_port_offloads(dev);
- uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads;
- uint64_t supp_rx_offloads =
- (mlx5_get_rx_port_offloads() |
- mlx5_get_rx_queue_offloads(dev));
- uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
int ret = 0;
- if ((tx_offloads & supp_tx_offloads) != tx_offloads) {
- DRV_LOG(ERR,
- "port %u some Tx offloads are not supported requested"
- " 0x%" PRIx64 " supported 0x%" PRIx64,
- dev->data->port_id, tx_offloads, supp_tx_offloads);
- rte_errno = ENOTSUP;
- return -rte_errno;
- }
- if ((rx_offloads & supp_rx_offloads) != rx_offloads) {
- DRV_LOG(ERR,
- "port %u some Rx offloads are not supported requested"
- " 0x%" PRIx64 " supported 0x%" PRIx64,
- dev->data->port_id, rx_offloads, supp_rx_offloads);
- rte_errno = ENOTSUP;
- return -rte_errno;
- }
if (use_app_rss_key &&
(dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len !=
- rss_hash_default_key_len)) {
- /* MLX5 RSS only support 40bytes key. */
+ MLX5_RSS_HASH_KEY_LEN)) {
+ DRV_LOG(ERR, "port %u RSS key len must be %s Bytes long",
+ dev->data->port_id, RTE_STR(MLX5_RSS_HASH_KEY_LEN));
rte_errno = EINVAL;
return -rte_errno;
}
priv->rss_conf.rss_key =
rte_realloc(priv->rss_conf.rss_key,
- rss_hash_default_key_len, 0);
+ MLX5_RSS_HASH_KEY_LEN, 0);
if (!priv->rss_conf.rss_key) {
DRV_LOG(ERR, "port %u cannot allocate RSS hash key memory (%u)",
dev->data->port_id, rxqs_n);
use_app_rss_key ?
dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key :
rss_hash_default_key,
- rss_hash_default_key_len);
- priv->rss_conf.rss_key_len = rss_hash_default_key_len;
+ MLX5_RSS_HASH_KEY_LEN);
+ priv->rss_conf.rss_key_len = MLX5_RSS_HASH_KEY_LEN;
priv->rss_conf.rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;
priv->rxqs = (void *)dev->data->rx_queues;
priv->txqs = (void *)dev->data->tx_queues;
return 0;
}
+/**
+ * Sets default tuning parameters.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param[out] info
+ * Info structure output buffer.
+ */
+static void
+mlx5_set_default_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
+{
+ struct priv *priv = dev->data->dev_private;
+
+ /* Minimum CPU utilization. */
+ info->default_rxportconf.ring_size = 256;
+ info->default_txportconf.ring_size = 256;
+ info->default_rxportconf.burst_size = 64;
+ info->default_txportconf.burst_size = 64;
+ if (priv->link_speed_capa & ETH_LINK_SPEED_100G) {
+ info->default_rxportconf.nb_queues = 16;
+ info->default_txportconf.nb_queues = 16;
+ if (dev->data->nb_rx_queues > 2 ||
+ dev->data->nb_tx_queues > 2) {
+ /* Max Throughput. */
+ info->default_rxportconf.ring_size = 2048;
+ info->default_txportconf.ring_size = 2048;
+ }
+ } else {
+ info->default_rxportconf.nb_queues = 8;
+ info->default_txportconf.nb_queues = 8;
+ if (dev->data->nb_rx_queues > 2 ||
+ dev->data->nb_tx_queues > 2) {
+ /* Max Throughput. */
+ info->default_rxportconf.ring_size = 4096;
+ info->default_txportconf.ring_size = 4096;
+ }
+ }
+}
+
/**
* DPDK callback to get information about the device.
*
unsigned int max;
char ifname[IF_NAMESIZE];
- info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
/* FIXME: we should ask the device for these values. */
info->min_rx_bufsize = 32;
info->max_rx_pktlen = 65536;
max = 65535;
info->max_rx_queues = max;
info->max_tx_queues = max;
- info->max_mac_addrs = RTE_DIM(priv->mac);
+ info->max_mac_addrs = MLX5_MAX_UC_MAC_ADDRESSES;
info->rx_queue_offload_capa = mlx5_get_rx_queue_offloads(dev);
info->rx_offload_capa = (mlx5_get_rx_port_offloads() |
info->rx_queue_offload_capa);
info->if_index = if_nametoindex(ifname);
info->reta_size = priv->reta_idx_n ?
priv->reta_idx_n : config->ind_table_max_size;
- info->hash_key_size = priv->rss_conf.rss_key_len;
+ info->hash_key_size = MLX5_RSS_HASH_KEY_LEN;
info->speed_capa = priv->link_speed_capa;
info->flow_type_rss_offloads = ~MLX5_RSS_HF_MASK;
+ mlx5_set_default_params(dev, info);
+ info->switch_info.name = dev->data->name;
+ info->switch_info.domain_id = priv->domain_id;
+ info->switch_info.port_id = priv->representor_id;
+ if (priv->representor) {
+ unsigned int i = mlx5_dev_to_port_id(dev->device, NULL, 0);
+ uint16_t port_id[i];
+
+ i = RTE_MIN(mlx5_dev_to_port_id(dev->device, port_id, i), i);
+ while (i--) {
+ struct priv *opriv =
+ rte_eth_devices[port_id[i]].data->dev_private;
+
+ if (!opriv ||
+ opriv->representor ||
+ opriv->domain_id != priv->domain_id)
+ continue;
+ /*
+ * Override switch name with that of the master
+ * device.
+ */
+ info->switch_info.name = opriv->dev_data->name;
+ break;
+ }
+ }
}
/**
};
if (dev->rx_pkt_burst == mlx5_rx_burst ||
+ dev->rx_pkt_burst == mlx5_rx_burst_mprq ||
dev->rx_pkt_burst == mlx5_rx_burst_vec)
return ptypes;
return NULL;
*
* @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)
+mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev,
+ struct rte_eth_link *link)
{
struct priv *priv = dev->data->dev_private;
struct ethtool_cmd edata = {
dev->data->port_id, strerror(rte_errno));
return ret;
}
- memset(&dev_link, 0, sizeof(dev_link));
- dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
- (ifr.ifr_flags & IFF_RUNNING));
- ifr.ifr_data = (void *)&edata;
+ 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) {
DRV_LOG(WARNING,
}
link_speed = ethtool_cmd_speed(&edata);
if (link_speed == -1)
- dev_link.link_speed = 0;
+ dev_link.link_speed = ETH_SPEED_NUM_NONE;
else
dev_link.link_speed = link_speed;
priv->link_speed_capa = 0;
ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
ETH_LINK_SPEED_FIXED);
- if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) {
- /* Link status changed. */
- dev->data->dev_link = dev_link;
- return 0;
+ if (((dev_link.link_speed && !dev_link.link_status) ||
+ (!dev_link.link_speed && dev_link.link_status))) {
+ rte_errno = EAGAIN;
+ return -rte_errno;
}
- /* Link status is still the same. */
- rte_errno = EAGAIN;
- return -rte_errno;
+ *link = dev_link;
+ return 0;
}
/**
*
* @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)
+mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
+ struct rte_eth_link *link)
+
{
struct priv *priv = dev->data->dev_private;
struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS };
dev->data->port_id, strerror(rte_errno));
return ret;
}
- memset(&dev_link, 0, sizeof(dev_link));
- dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
- (ifr.ifr_flags & IFF_RUNNING));
- ifr.ifr_data = (void *)&gcmd;
+ 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) {
DRV_LOG(DEBUG,
ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
ETH_LINK_SPEED_FIXED);
- if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) {
- /* Link status changed. */
- dev->data->dev_link = dev_link;
- return 0;
- }
- /* Link status is still the same. */
- rte_errno = EAGAIN;
- return -rte_errno;
-}
-
-/**
- * Enable receiving and transmitting traffic.
- *
- * @param dev
- * Pointer to Ethernet device.
- */
-static void
-mlx5_link_start(struct rte_eth_dev *dev)
-{
- struct priv *priv = dev->data->dev_private;
- int ret;
-
- dev->tx_pkt_burst = mlx5_select_tx_function(dev);
- dev->rx_pkt_burst = mlx5_select_rx_function(dev);
- ret = mlx5_traffic_enable(dev);
- if (ret) {
- DRV_LOG(ERR,
- "port %u error occurred while configuring control"
- " flows: %s",
- dev->data->port_id, strerror(rte_errno));
- return;
- }
- ret = mlx5_flow_start(dev, &priv->flows);
- if (ret)
- DRV_LOG(ERR,
- "port %u error occurred while configuring flows: %s",
- dev->data->port_id, strerror(rte_errno));
-}
-
-/**
- * Disable receiving and transmitting traffic.
- *
- * @param dev
- * Pointer to Ethernet device.
- */
-static void
-mlx5_link_stop(struct rte_eth_dev *dev)
-{
- struct priv *priv = dev->data->dev_private;
-
- mlx5_flow_stop(dev, &priv->flows);
- mlx5_traffic_disable(dev);
- dev->rx_pkt_burst = removed_rx_burst;
- dev->tx_pkt_burst = removed_tx_burst;
-}
-
-/**
- * Querying the link status till it changes to the desired state.
- * Number of query attempts is bounded by MLX5_MAX_LINK_QUERY_ATTEMPTS.
- *
- * @param dev
- * Pointer to Ethernet device.
- * @param status
- * Link desired status.
- *
- * @return
- * 0 on success, a negative errno value otherwise and rte_errno is set.
- */
-int
-mlx5_force_link_status_change(struct rte_eth_dev *dev, int status)
-{
- int try = 0;
-
- while (try < MLX5_MAX_LINK_QUERY_ATTEMPTS) {
- mlx5_link_update(dev, 0);
- if (dev->data->dev_link.link_status == status)
- return 0;
- try++;
- sleep(1);
+ if (((dev_link.link_speed && !dev_link.link_status) ||
+ (!dev_link.link_speed && dev_link.link_status))) {
+ rte_errno = EAGAIN;
+ return -rte_errno;
}
- rte_errno = EAGAIN;
- return -rte_errno;
+ *link = dev_link;
+ return 0;
}
/**
* @param dev
* Pointer to Ethernet device structure.
* @param wait_to_complete
- * Wait for request completion (ignored).
+ * Wait for request completion.
*
* @return
- * 0 on success, a negative errno value otherwise and rte_errno is set.
+ * 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 __rte_unused)
+mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
{
- struct utsname utsname;
- int ver[3];
int ret;
- struct rte_eth_link dev_link = dev->data->dev_link;
+ struct rte_eth_link dev_link;
+ time_t start_time = time(NULL);
- if (uname(&utsname) == -1 ||
- sscanf(utsname.release, "%d.%d.%d",
- &ver[0], &ver[1], &ver[2]) != 3 ||
- KERNEL_VERSION(ver[0], ver[1], ver[2]) < KERNEL_VERSION(4, 9, 0))
- ret = mlx5_link_update_unlocked_gset(dev);
- else
- ret = mlx5_link_update_unlocked_gs(dev);
- if (ret)
- return ret;
- /* If lsc interrupt is disabled, should always be ready for traffic. */
- if (!dev->data->dev_conf.intr_conf.lsc) {
- mlx5_link_start(dev);
- return 0;
- }
- /* Re-select burst callbacks only if link status has been changed. */
- if (!ret && dev_link.link_status != dev->data->dev_link.link_status) {
- if (dev->data->dev_link.link_status == ETH_LINK_UP)
- mlx5_link_start(dev);
- else
- mlx5_link_stop(dev);
- }
- return 0;
+ do {
+ ret = mlx5_link_update_unlocked_gs(dev, &dev_link);
+ if (ret)
+ ret = mlx5_link_update_unlocked_gset(dev, &dev_link);
+ if (ret == 0)
+ break;
+ /* Handle wait to complete situation. */
+ if (wait_to_complete && 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);
+ ret = !!memcmp(&dev->data->dev_link, &dev_link,
+ sizeof(struct rte_eth_link));
+ dev->data->dev_link = dev_link;
+ return ret;
}
/**
return 0;
}
-/**
- * Update the link status.
- *
- * @param dev
- * Pointer to Ethernet device.
- *
- * @return
- * Zero if the callback process can be called immediately, negative errno
- * value otherwise and rte_errno is set.
- */
-static int
-mlx5_link_status_update(struct rte_eth_dev *dev)
-{
- struct priv *priv = dev->data->dev_private;
- struct rte_eth_link *link = &dev->data->dev_link;
- int ret;
-
- ret = mlx5_link_update(dev, 0);
- if (ret)
- return ret;
- if (((link->link_speed == 0) && link->link_status) ||
- ((link->link_speed != 0) && !link->link_status)) {
- /*
- * Inconsistent status. Event likely occurred before the
- * kernel netdevice exposes the new status.
- */
- if (!priv->pending_alarm) {
- priv->pending_alarm = 1;
- rte_eal_alarm_set(MLX5_ALARM_TIMEOUT_US,
- mlx5_dev_link_status_handler,
- priv->dev);
- }
- return 1;
- } else if (unlikely(priv->pending_alarm)) {
- /* Link interrupt occurred while alarm is already scheduled. */
- priv->pending_alarm = 0;
- rte_eal_alarm_cancel(mlx5_dev_link_status_handler, priv->dev);
- }
- return 0;
-}
-
/**
* Device status handler.
*
struct ibv_async_event event;
uint32_t ret = 0;
+ if (mlx5_link_update(dev, 0) == -EAGAIN) {
+ usleep(0);
+ return 0;
+ }
/* Read all message and acknowledge them. */
for (;;) {
if (mlx5_glue->get_async_event(priv->ctx, &event))
dev->data->port_id, event.event_type);
mlx5_glue->ack_async_event(&event);
}
- if (ret & (1 << RTE_ETH_EVENT_INTR_LSC))
- if (mlx5_link_status_update(dev))
- ret &= ~(1 << RTE_ETH_EVENT_INTR_LSC);
return ret;
}
-/**
- * Handle delayed link status event.
- *
- * @param arg
- * Registered argument.
- */
-void
-mlx5_dev_link_status_handler(void *arg)
-{
- struct rte_eth_dev *dev = arg;
- struct priv *priv = dev->data->dev_private;
- int ret;
-
- priv->pending_alarm = 0;
- ret = mlx5_link_status_update(dev);
- if (!ret)
- _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
-}
-
/**
* Handle interrupts from the NIC.
*
if (priv->primary_socket)
rte_intr_callback_unregister(&priv->intr_handle_socket,
mlx5_dev_handler_socket, dev);
- if (priv->pending_alarm) {
- priv->pending_alarm = 0;
- rte_eal_alarm_cancel(mlx5_dev_link_status_handler, dev);
- }
priv->intr_handle.fd = 0;
priv->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
priv->intr_handle_socket.fd = 0;
uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads;
int tso = !!(tx_offloads & (DEV_TX_OFFLOAD_TCP_TSO |
DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
- DEV_TX_OFFLOAD_GRE_TNL_TSO));
+ DEV_TX_OFFLOAD_GRE_TNL_TSO |
+ DEV_TX_OFFLOAD_IP_TNL_TSO |
+ DEV_TX_OFFLOAD_UDP_TNL_TSO));
+ int swp = !!(tx_offloads & (DEV_TX_OFFLOAD_IP_TNL_TSO |
+ DEV_TX_OFFLOAD_UDP_TNL_TSO |
+ DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM));
int vlan_insert = !!(tx_offloads & DEV_TX_OFFLOAD_VLAN_INSERT);
assert(priv != NULL);
/* Select appropriate TX function. */
- if (vlan_insert || tso)
+ if (vlan_insert || tso || swp)
return tx_pkt_burst;
if (config->mps == MLX5_MPW_ENHANCED) {
if (mlx5_check_vec_tx_support(dev) > 0) {
rx_pkt_burst = mlx5_rx_burst_vec;
DRV_LOG(DEBUG, "port %u selected Rx vectorized function",
dev->data->port_id);
+ } else if (mlx5_mprq_enabled(dev)) {
+ rx_pkt_burst = mlx5_rx_burst_mprq;
}
return rx_pkt_burst;
}
return 1;
return 0;
}
+
+/**
+ * Get port ID list of mlx5 instances sharing a common device.
+ *
+ * @param[in] dev
+ * Device to look for.
+ * @param[out] port_list
+ * Result buffer for collected port IDs.
+ * @param port_list_n
+ * Maximum number of entries in result buffer. If 0, @p port_list can be
+ * NULL.
+ *
+ * @return
+ * Number of matching instances regardless of the @p port_list_n
+ * parameter, 0 if none were found.
+ */
+unsigned int
+mlx5_dev_to_port_id(const struct rte_device *dev, uint16_t *port_list,
+ unsigned int port_list_n)
+{
+ uint16_t id;
+ unsigned int n = 0;
+
+ RTE_ETH_FOREACH_DEV(id) {
+ struct rte_eth_dev *ldev = &rte_eth_devices[id];
+
+ if (ldev->device != dev)
+ continue;
+ if (n < port_list_n)
+ port_list[n] = id;
+ n++;
+ }
+ return n;
+}
+
+/**
+ * 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];
+ FILE *file;
+ struct mlx5_switch_info data = { .master = 0, };
+ bool port_name_set = false;
+ bool port_switch_id_set = 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);
+
+ file = fopen(phys_port_name, "rb");
+ if (file != NULL) {
+ port_name_set =
+ fscanf(file, "%d%c", &data.port_name, &c) == 2 &&
+ c == '\n';
+ 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);
+ data.master = port_switch_id_set && !port_name_set;
+ data.representor = port_switch_id_set && port_name_set;
+ *info = data;
+ return 0;
+}
git.droids-corp.org / dpdk.git / blobdiff