--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 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.
+ */
+
+/**
+ * @file
+ * Miscellaneous control operations for mlx4 driver.
+ */
+
+#include <assert.h>
+#include <dirent.h>
+#include <errno.h>
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+#include <net/if.h>
+#include <netinet/ip.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+/* Verbs headers do not support -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+#include <infiniband/verbs.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-Wpedantic"
+#endif
+
+#include <rte_bus_pci.h>
+#include <rte_errno.h>
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+#include <rte_flow.h>
+#include <rte_pci.h>
+
+#include "mlx4.h"
+#include "mlx4_flow.h"
+#include "mlx4_rxtx.h"
+#include "mlx4_utils.h"
+
+/**
+ * Get interface name from private structure.
+ *
+ * @param[in] priv
+ * Pointer to private structure.
+ * @param[out] ifname
+ * Interface name output buffer.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE])
+{
+ DIR *dir;
+ struct dirent *dent;
+ unsigned int dev_type = 0;
+ unsigned int dev_port_prev = ~0u;
+ char match[IF_NAMESIZE] = "";
+
+ {
+ MKSTR(path, "%s/device/net", priv->ctx->device->ibdev_path);
+
+ dir = opendir(path);
+ if (dir == NULL) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
+ }
+ while ((dent = readdir(dir)) != NULL) {
+ char *name = dent->d_name;
+ FILE *file;
+ unsigned int dev_port;
+ int r;
+
+ if ((name[0] == '.') &&
+ ((name[1] == '\0') ||
+ ((name[1] == '.') && (name[2] == '\0'))))
+ continue;
+
+ MKSTR(path, "%s/device/net/%s/%s",
+ priv->ctx->device->ibdev_path, name,
+ (dev_type ? "dev_id" : "dev_port"));
+
+ file = fopen(path, "rb");
+ if (file == NULL) {
+ if (errno != ENOENT)
+ continue;
+ /*
+ * Switch to dev_id when dev_port does not exist as
+ * is the case with Linux kernel versions < 3.15.
+ */
+try_dev_id:
+ match[0] = '\0';
+ if (dev_type)
+ break;
+ dev_type = 1;
+ dev_port_prev = ~0u;
+ rewinddir(dir);
+ continue;
+ }
+ r = fscanf(file, (dev_type ? "%x" : "%u"), &dev_port);
+ fclose(file);
+ if (r != 1)
+ continue;
+ /*
+ * Switch to dev_id when dev_port returns the same value for
+ * all ports. May happen when using a MOFED release older than
+ * 3.0 with a Linux kernel >= 3.15.
+ */
+ 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);
+ }
+ closedir(dir);
+ if (match[0] == '\0') {
+ rte_errno = ENODEV;
+ return -rte_errno;
+ }
+ strncpy(*ifname, match, sizeof(*ifname));
+ return 0;
+}
+
+/**
+ * Read from sysfs entry.
+ *
+ * @param[in] priv
+ * Pointer to private structure.
+ * @param[in] entry
+ * Entry name relative to sysfs path.
+ * @param[out] buf
+ * Data output buffer.
+ * @param size
+ * Buffer size.
+ *
+ * @return
+ * Number of bytes read on success, negative errno value otherwise and
+ * rte_errno is set.
+ */
+static int
+mlx4_sysfs_read(const struct priv *priv, const char *entry,
+ char *buf, size_t size)
+{
+ char ifname[IF_NAMESIZE];
+ FILE *file;
+ int ret;
+
+ ret = mlx4_get_ifname(priv, &ifname);
+ if (ret)
+ return ret;
+
+ MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->ibdev_path,
+ ifname, entry);
+
+ file = fopen(path, "rb");
+ if (file == NULL) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
+ ret = fread(buf, 1, size, file);
+ if ((size_t)ret < size && ferror(file)) {
+ rte_errno = EIO;
+ ret = -rte_errno;
+ } else {
+ ret = size;
+ }
+ fclose(file);
+ return ret;
+}
+
+/**
+ * Write to sysfs entry.
+ *
+ * @param[in] priv
+ * Pointer to private structure.
+ * @param[in] entry
+ * Entry name relative to sysfs path.
+ * @param[in] buf
+ * Data buffer.
+ * @param size
+ * Buffer size.
+ *
+ * @return
+ * Number of bytes written on success, negative errno value otherwise and
+ * rte_errno is set.
+ */
+static int
+mlx4_sysfs_write(const struct priv *priv, const char *entry,
+ char *buf, size_t size)
+{
+ char ifname[IF_NAMESIZE];
+ FILE *file;
+ int ret;
+
+ ret = mlx4_get_ifname(priv, &ifname);
+ if (ret)
+ return ret;
+
+ MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->ibdev_path,
+ ifname, entry);
+
+ file = fopen(path, "wb");
+ if (file == NULL) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
+ ret = fwrite(buf, 1, size, file);
+ if ((size_t)ret < size || ferror(file)) {
+ rte_errno = EIO;
+ ret = -rte_errno;
+ } else {
+ ret = size;
+ }
+ fclose(file);
+ return ret;
+}
+
+/**
+ * Get unsigned long sysfs property.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param[in] name
+ * Entry name relative to sysfs path.
+ * @param[out] value
+ * Value output buffer.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx4_get_sysfs_ulong(struct priv *priv, const char *name, unsigned long *value)
+{
+ int ret;
+ unsigned long value_ret;
+ char value_str[32];
+
+ ret = mlx4_sysfs_read(priv, name, value_str, (sizeof(value_str) - 1));
+ if (ret < 0) {
+ DEBUG("cannot read %s value from sysfs: %s",
+ name, strerror(rte_errno));
+ return ret;
+ }
+ value_str[ret] = '\0';
+ errno = 0;
+ value_ret = strtoul(value_str, NULL, 0);
+ if (errno) {
+ rte_errno = errno;
+ DEBUG("invalid %s value `%s': %s", name, value_str,
+ strerror(rte_errno));
+ return -rte_errno;
+ }
+ *value = value_ret;
+ return 0;
+}
+
+/**
+ * Set unsigned long sysfs property.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param[in] name
+ * Entry name relative to sysfs path.
+ * @param value
+ * Value to set.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx4_set_sysfs_ulong(struct priv *priv, const char *name, unsigned long value)
+{
+ int ret;
+ MKSTR(value_str, "%lu", value);
+
+ ret = mlx4_sysfs_write(priv, name, value_str, (sizeof(value_str) - 1));
+ if (ret < 0) {
+ DEBUG("cannot write %s `%s' (%lu) to sysfs: %s",
+ name, value_str, value, strerror(rte_errno));
+ return ret;
+ }
+ return 0;
+}
+
+/**
+ * Perform ifreq ioctl() on associated Ethernet device.
+ *
+ * @param[in] priv
+ * Pointer to private structure.
+ * @param req
+ * Request number to pass to ioctl().
+ * @param[out] ifr
+ * Interface request structure output buffer.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx4_ifreq(const struct priv *priv, int req, struct ifreq *ifr)
+{
+ int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
+ int ret;
+
+ if (sock == -1) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
+ ret = mlx4_get_ifname(priv, &ifr->ifr_name);
+ if (!ret && ioctl(sock, req, ifr) == -1) {
+ rte_errno = errno;
+ ret = -rte_errno;
+ }
+ close(sock);
+ return ret;
+}
+
+/**
+ * Get MAC address by querying netdevice.
+ *
+ * @param[in] priv
+ * Pointer to private structure.
+ * @param[out] mac
+ * MAC address output buffer.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_get_mac(struct priv *priv, uint8_t (*mac)[ETHER_ADDR_LEN])
+{
+ struct ifreq request;
+ int ret = mlx4_ifreq(priv, SIOCGIFHWADDR, &request);
+
+ if (ret)
+ return ret;
+ memcpy(mac, request.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
+ return 0;
+}
+
+/**
+ * Get device MTU.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param[out] mtu
+ * MTU value output buffer.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_mtu_get(struct priv *priv, uint16_t *mtu)
+{
+ unsigned long ulong_mtu = 0;
+ int ret = mlx4_get_sysfs_ulong(priv, "mtu", &ulong_mtu);
+
+ if (ret)
+ return ret;
+ *mtu = ulong_mtu;
+ return 0;
+}
+
+/**
+ * DPDK callback to change the MTU.
+ *
+ * @param priv
+ * Pointer to Ethernet device structure.
+ * @param mtu
+ * MTU value to set.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct priv *priv = dev->data->dev_private;
+ uint16_t new_mtu;
+ int ret = mlx4_set_sysfs_ulong(priv, "mtu", mtu);
+
+ if (ret)
+ return ret;
+ ret = mlx4_mtu_get(priv, &new_mtu);
+ if (ret)
+ return ret;
+ if (new_mtu == mtu) {
+ priv->mtu = mtu;
+ return 0;
+ }
+ rte_errno = EINVAL;
+ return -rte_errno;
+}
+
+/**
+ * Set device flags.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param keep
+ * Bitmask for flags that must remain untouched.
+ * @param flags
+ * Bitmask for flags to modify.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx4_set_flags(struct priv *priv, unsigned int keep, unsigned int flags)
+{
+ unsigned long tmp = 0;
+ int ret = mlx4_get_sysfs_ulong(priv, "flags", &tmp);
+
+ if (ret)
+ return ret;
+ tmp &= keep;
+ tmp |= (flags & (~keep));
+ return mlx4_set_sysfs_ulong(priv, "flags", tmp);
+}
+
+/**
+ * Change the link state (UP / DOWN).
+ *
+ * @param priv
+ * Pointer to Ethernet device private data.
+ * @param up
+ * Nonzero for link up, otherwise link down.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx4_dev_set_link(struct priv *priv, int up)
+{
+ int err;
+
+ if (up) {
+ err = mlx4_set_flags(priv, ~IFF_UP, IFF_UP);
+ if (err)
+ return err;
+ } else {
+ err = mlx4_set_flags(priv, ~IFF_UP, ~IFF_UP);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+/**
+ * DPDK callback to bring the link DOWN.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_dev_set_link_down(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+
+ return mlx4_dev_set_link(priv, 0);
+}
+
+/**
+ * DPDK callback to bring the link UP.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_dev_set_link_up(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+
+ return mlx4_dev_set_link(priv, 1);
+}
+
+/**
+ * Supported Rx mode toggles.
+ *
+ * Even and odd values respectively stand for off and on.
+ */
+enum rxmode_toggle {
+ RXMODE_TOGGLE_PROMISC_OFF,
+ RXMODE_TOGGLE_PROMISC_ON,
+ RXMODE_TOGGLE_ALLMULTI_OFF,
+ RXMODE_TOGGLE_ALLMULTI_ON,
+};
+
+/**
+ * Helper function to toggle promiscuous and all multicast modes.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param toggle
+ * Toggle to set.
+ */
+static void
+mlx4_rxmode_toggle(struct rte_eth_dev *dev, enum rxmode_toggle toggle)
+{
+ struct priv *priv = dev->data->dev_private;
+ const char *mode;
+ struct rte_flow_error error;
+
+ switch (toggle) {
+ case RXMODE_TOGGLE_PROMISC_OFF:
+ case RXMODE_TOGGLE_PROMISC_ON:
+ mode = "promiscuous";
+ dev->data->promiscuous = toggle & 1;
+ break;
+ case RXMODE_TOGGLE_ALLMULTI_OFF:
+ case RXMODE_TOGGLE_ALLMULTI_ON:
+ mode = "all multicast";
+ dev->data->all_multicast = toggle & 1;
+ break;
+ }
+ if (!mlx4_flow_sync(priv, &error))
+ return;
+ ERROR("cannot toggle %s mode (code %d, \"%s\"),"
+ " flow error type %d, cause %p, message: %s",
+ mode, rte_errno, strerror(rte_errno), error.type, error.cause,
+ error.message ? error.message : "(unspecified)");
+}
+
+/**
+ * DPDK callback to enable promiscuous mode.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+void
+mlx4_promiscuous_enable(struct rte_eth_dev *dev)
+{
+ mlx4_rxmode_toggle(dev, RXMODE_TOGGLE_PROMISC_ON);
+}
+
+/**
+ * DPDK callback to disable promiscuous mode.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+void
+mlx4_promiscuous_disable(struct rte_eth_dev *dev)
+{
+ mlx4_rxmode_toggle(dev, RXMODE_TOGGLE_PROMISC_OFF);
+}
+
+/**
+ * DPDK callback to enable all multicast mode.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+void
+mlx4_allmulticast_enable(struct rte_eth_dev *dev)
+{
+ mlx4_rxmode_toggle(dev, RXMODE_TOGGLE_ALLMULTI_ON);
+}
+
+/**
+ * DPDK callback to disable all multicast mode.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+void
+mlx4_allmulticast_disable(struct rte_eth_dev *dev)
+{
+ mlx4_rxmode_toggle(dev, RXMODE_TOGGLE_ALLMULTI_OFF);
+}
+
+/**
+ * DPDK callback to remove a MAC address.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param index
+ * MAC address index.
+ */
+void
+mlx4_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
+{
+ struct priv *priv = dev->data->dev_private;
+ struct rte_flow_error error;
+
+ if (index >= RTE_DIM(priv->mac)) {
+ rte_errno = EINVAL;
+ return;
+ }
+ memset(&priv->mac[index], 0, sizeof(priv->mac[index]));
+ if (!mlx4_flow_sync(priv, &error))
+ return;
+ ERROR("failed to synchronize flow rules after removing MAC address"
+ " at index %d (code %d, \"%s\"),"
+ " flow error type %d, cause %p, message: %s",
+ index, rte_errno, strerror(rte_errno), error.type, error.cause,
+ error.message ? error.message : "(unspecified)");
+}
+
+/**
+ * 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, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
+ uint32_t index, uint32_t vmdq)
+{
+ struct priv *priv = dev->data->dev_private;
+ struct rte_flow_error error;
+ int ret;
+
+ (void)vmdq;
+ if (index >= RTE_DIM(priv->mac)) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ memcpy(&priv->mac[index], mac_addr, sizeof(priv->mac[index]));
+ ret = mlx4_flow_sync(priv, &error);
+ if (!ret)
+ return 0;
+ ERROR("failed to synchronize flow rules after adding MAC address"
+ " at index %d (code %d, \"%s\"),"
+ " flow error type %d, cause %p, message: %s",
+ index, rte_errno, strerror(rte_errno), error.type, error.cause,
+ error.message ? error.message : "(unspecified)");
+ return ret;
+}
+
+/**
+ * DPDK callback to configure a VLAN filter.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param vlan_id
+ * VLAN ID to filter.
+ * @param on
+ * Toggle filter.
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
+{
+ struct priv *priv = dev->data->dev_private;
+ struct rte_flow_error error;
+ unsigned int vidx = vlan_id / 64;
+ unsigned int vbit = vlan_id % 64;
+ uint64_t *v;
+ int ret;
+
+ if (vidx >= RTE_DIM(dev->data->vlan_filter_conf.ids)) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ v = &dev->data->vlan_filter_conf.ids[vidx];
+ *v &= ~(UINT64_C(1) << vbit);
+ *v |= (uint64_t)!!on << vbit;
+ ret = mlx4_flow_sync(priv, &error);
+ if (!ret)
+ return 0;
+ ERROR("failed to synchronize flow rules after %s VLAN filter on ID %u"
+ " (code %d, \"%s\"), "
+ " flow error type %d, cause %p, message: %s",
+ on ? "enabling" : "disabling", vlan_id,
+ rte_errno, strerror(rte_errno), error.type, error.cause,
+ error.message ? error.message : "(unspecified)");
+ return ret;
+}
+
+/**
+ * DPDK callback to set the primary MAC address.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param mac_addr
+ * MAC address to register.
+ */
+void
+mlx4_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
+{
+ mlx4_mac_addr_add(dev, mac_addr, 0, 0);
+}
+
+/**
+ * DPDK callback to get information about the device.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param[out] info
+ * Info structure output buffer.
+ */
+void
+mlx4_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
+{
+ struct priv *priv = dev->data->dev_private;
+ 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;
+ /*
+ * Since we need one CQ per QP, the limit is the minimum number
+ * between the two values.
+ */
+ max = ((priv->device_attr.max_cq > priv->device_attr.max_qp) ?
+ priv->device_attr.max_qp : priv->device_attr.max_cq);
+ /* If max >= 65535 then max = 0, max_rx_queues is uint16_t. */
+ if (max >= 65535)
+ max = 65535;
+ info->max_rx_queues = max;
+ info->max_tx_queues = max;
+ info->max_mac_addrs = RTE_DIM(priv->mac);
+ info->rx_offload_capa = 0;
+ info->tx_offload_capa = 0;
+ if (priv->hw_csum) {
+ info->tx_offload_capa |= (DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM);
+ info->rx_offload_capa |= (DEV_RX_OFFLOAD_IPV4_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM |
+ DEV_RX_OFFLOAD_TCP_CKSUM);
+ }
+ if (priv->hw_csum_l2tun)
+ info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
+ if (mlx4_get_ifname(priv, &ifname) == 0)
+ info->if_index = if_nametoindex(ifname);
+ info->hash_key_size = MLX4_RSS_HASH_KEY_SIZE;
+ info->speed_capa =
+ ETH_LINK_SPEED_1G |
+ ETH_LINK_SPEED_10G |
+ ETH_LINK_SPEED_20G |
+ ETH_LINK_SPEED_40G |
+ ETH_LINK_SPEED_56G;
+}
+
+/**
+ * DPDK callback to get device statistics.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param[out] stats
+ * Stats structure output buffer.
+ */
+int
+mlx4_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+ struct rte_eth_stats tmp;
+ unsigned int i;
+ unsigned int idx;
+
+ memset(&tmp, 0, sizeof(tmp));
+ /* Add software counters. */
+ for (i = 0; i != dev->data->nb_rx_queues; ++i) {
+ struct rxq *rxq = dev->data->rx_queues[i];
+
+ if (rxq == NULL)
+ continue;
+ idx = rxq->stats.idx;
+ if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+ tmp.q_ipackets[idx] += rxq->stats.ipackets;
+ tmp.q_ibytes[idx] += rxq->stats.ibytes;
+ tmp.q_errors[idx] += (rxq->stats.idropped +
+ rxq->stats.rx_nombuf);
+ }
+ tmp.ipackets += rxq->stats.ipackets;
+ tmp.ibytes += rxq->stats.ibytes;
+ tmp.ierrors += rxq->stats.idropped;
+ tmp.rx_nombuf += rxq->stats.rx_nombuf;
+ }
+ for (i = 0; i != dev->data->nb_tx_queues; ++i) {
+ struct txq *txq = dev->data->tx_queues[i];
+
+ if (txq == NULL)
+ continue;
+ idx = txq->stats.idx;
+ if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+ tmp.q_opackets[idx] += txq->stats.opackets;
+ tmp.q_obytes[idx] += txq->stats.obytes;
+ tmp.q_errors[idx] += txq->stats.odropped;
+ }
+ tmp.opackets += txq->stats.opackets;
+ tmp.obytes += txq->stats.obytes;
+ tmp.oerrors += txq->stats.odropped;
+ }
+ *stats = tmp;
+ return 0;
+}
+
+/**
+ * DPDK callback to clear device statistics.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+void
+mlx4_stats_reset(struct rte_eth_dev *dev)
+{
+ unsigned int i;
+
+ for (i = 0; i != dev->data->nb_rx_queues; ++i) {
+ struct rxq *rxq = dev->data->rx_queues[i];
+
+ if (rxq)
+ rxq->stats = (struct mlx4_rxq_stats){
+ .idx = rxq->stats.idx,
+ };
+ }
+ for (i = 0; i != dev->data->nb_tx_queues; ++i) {
+ struct txq *txq = dev->data->tx_queues[i];
+
+ if (txq)
+ txq->stats = (struct mlx4_txq_stats){
+ .idx = txq->stats.idx,
+ };
+ }
+}
+
+/**
+ * DPDK callback to retrieve physical link information.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param wait_to_complete
+ * Wait for request completion (ignored).
+ *
+ * @return
+ * 0 on success, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_link_update(struct rte_eth_dev *dev, int wait_to_complete)
+{
+ const struct priv *priv = dev->data->dev_private;
+ struct ethtool_cmd edata = {
+ .cmd = ETHTOOL_GSET,
+ };
+ struct ifreq ifr;
+ struct rte_eth_link dev_link;
+ int link_speed = 0;
+
+ if (priv == NULL) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ (void)wait_to_complete;
+ if (mlx4_ifreq(priv, SIOCGIFFLAGS, &ifr)) {
+ WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(rte_errno));
+ return -rte_errno;
+ }
+ 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;
+ if (mlx4_ifreq(priv, SIOCETHTOOL, &ifr)) {
+ WARN("ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s",
+ strerror(rte_errno));
+ return -rte_errno;
+ }
+ link_speed = ethtool_cmd_speed(&edata);
+ if (link_speed == -1)
+ dev_link.link_speed = 0;
+ else
+ dev_link.link_speed = link_speed;
+ dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ?
+ ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
+ dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
+ ETH_LINK_SPEED_FIXED);
+ dev->data->dev_link = dev_link;
+ return 0;
+}
+
+/**
+ * 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, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+ struct priv *priv = dev->data->dev_private;
+ struct ifreq ifr;
+ struct ethtool_pauseparam ethpause = {
+ .cmd = ETHTOOL_GPAUSEPARAM,
+ };
+ int ret;
+
+ ifr.ifr_data = (void *)ðpause;
+ if (mlx4_ifreq(priv, SIOCETHTOOL, &ifr)) {
+ ret = rte_errno;
+ WARN("ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)"
+ " failed: %s",
+ strerror(rte_errno));
+ goto out;
+ }
+ fc_conf->autoneg = ethpause.autoneg;
+ if (ethpause.rx_pause && ethpause.tx_pause)
+ fc_conf->mode = RTE_FC_FULL;
+ else if (ethpause.rx_pause)
+ fc_conf->mode = RTE_FC_RX_PAUSE;
+ else if (ethpause.tx_pause)
+ fc_conf->mode = RTE_FC_TX_PAUSE;
+ else
+ fc_conf->mode = RTE_FC_NONE;
+ ret = 0;
+out:
+ assert(ret >= 0);
+ return -ret;
+}
+
+/**
+ * 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, negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx4_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+ struct priv *priv = dev->data->dev_private;
+ struct ifreq ifr;
+ struct ethtool_pauseparam ethpause = {
+ .cmd = ETHTOOL_SPAUSEPARAM,
+ };
+ int ret;
+
+ ifr.ifr_data = (void *)ðpause;
+ ethpause.autoneg = fc_conf->autoneg;
+ if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
+ (fc_conf->mode & RTE_FC_RX_PAUSE))
+ ethpause.rx_pause = 1;
+ else
+ ethpause.rx_pause = 0;
+ if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
+ (fc_conf->mode & RTE_FC_TX_PAUSE))
+ ethpause.tx_pause = 1;
+ else
+ ethpause.tx_pause = 0;
+ if (mlx4_ifreq(priv, SIOCETHTOOL, &ifr)) {
+ ret = rte_errno;
+ WARN("ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)"
+ " failed: %s",
+ strerror(rte_errno));
+ goto out;
+ }
+ ret = 0;
+out:
+ assert(ret >= 0);
+ return -ret;
+}
+
+/**
+ * DPDK callback to retrieve the received packet types that are recognized
+ * by the device.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * Pointer to an array of recognized packet types if in Rx burst mode,
+ * NULL otherwise.
+ */
+const uint32_t *
+mlx4_dev_supported_ptypes_get(struct rte_eth_dev *dev)
+{
+ static const uint32_t ptypes[] = {
+ /* refers to rxq_cq_to_pkt_type() */
+ RTE_PTYPE_L2_ETHER,
+ RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
+ RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
+ RTE_PTYPE_L4_FRAG,
+ RTE_PTYPE_L4_TCP,
+ RTE_PTYPE_L4_UDP,
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
+ RTE_PTYPE_UNKNOWN
+ };
+
+ if (dev->rx_pkt_burst == mlx4_rx_burst)
+ return ptypes;
+ return NULL;
+}
Code Review / deb_dpdk.git / blobdiff