--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2015 6WIND S.A.
+ * Copyright 2015 Mellanox.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of 6WIND S.A. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stddef.h>
+#include <unistd.h>
+#include <string.h>
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <net/if.h>
+
+/* Verbs header. */
+/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-pedantic"
+#endif
+#include <infiniband/verbs.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-pedantic"
+#endif
+
+/* DPDK headers don't like -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-pedantic"
+#endif
+#include <rte_malloc.h>
+#include <rte_ethdev.h>
+#include <rte_pci.h>
+#include <rte_common.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-pedantic"
+#endif
+
+#include "mlx5.h"
+#include "mlx5_utils.h"
+#include "mlx5_rxtx.h"
+#include "mlx5_autoconf.h"
+#include "mlx5_defs.h"
+
+/**
+ * Retrieve integer value from environment variable.
+ *
+ * @param[in] name
+ * Environment variable name.
+ *
+ * @return
+ * Integer value, 0 if the variable is not set.
+ */
+int
+mlx5_getenv_int(const char *name)
+{
+ const char *val = getenv(name);
+
+ if (val == NULL)
+ return 0;
+ return atoi(val);
+}
+
+/**
+ * DPDK callback to close the device.
+ *
+ * Destroy all queues and objects, free memory.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+static void
+mlx5_dev_close(struct rte_eth_dev *dev)
+{
+ struct priv *priv = mlx5_get_priv(dev);
+ void *tmp;
+ unsigned int i;
+
+ priv_lock(priv);
+ DEBUG("%p: closing device \"%s\"",
+ (void *)dev,
+ ((priv->ctx != NULL) ? priv->ctx->device->name : ""));
+ /* In case mlx5_dev_stop() has not been called. */
+ priv_dev_interrupt_handler_uninstall(priv, dev);
+ priv_special_flow_disable_all(priv);
+ priv_mac_addrs_disable(priv);
+ priv_destroy_hash_rxqs(priv);
+
+ /* Remove flow director elements. */
+ priv_fdir_disable(priv);
+ priv_fdir_delete_filters_list(priv);
+
+ /* Prevent crashes when queues are still in use. */
+ dev->rx_pkt_burst = removed_rx_burst;
+ dev->tx_pkt_burst = removed_tx_burst;
+ if (priv->rxqs != NULL) {
+ /* XXX race condition if mlx5_rx_burst() is still running. */
+ usleep(1000);
+ for (i = 0; (i != priv->rxqs_n); ++i) {
+ tmp = (*priv->rxqs)[i];
+ if (tmp == NULL)
+ continue;
+ (*priv->rxqs)[i] = NULL;
+ rxq_cleanup(tmp);
+ rte_free(tmp);
+ }
+ priv->rxqs_n = 0;
+ priv->rxqs = NULL;
+ }
+ if (priv->txqs != NULL) {
+ /* XXX race condition if mlx5_tx_burst() is still running. */
+ usleep(1000);
+ for (i = 0; (i != priv->txqs_n); ++i) {
+ tmp = (*priv->txqs)[i];
+ if (tmp == NULL)
+ continue;
+ (*priv->txqs)[i] = NULL;
+ txq_cleanup(tmp);
+ rte_free(tmp);
+ }
+ priv->txqs_n = 0;
+ priv->txqs = NULL;
+ }
+ if (priv->pd != NULL) {
+ assert(priv->ctx != NULL);
+ claim_zero(ibv_dealloc_pd(priv->pd));
+ claim_zero(ibv_close_device(priv->ctx));
+ } else
+ assert(priv->ctx == NULL);
+ if (priv->rss_conf != NULL) {
+ for (i = 0; (i != hash_rxq_init_n); ++i)
+ rte_free((*priv->rss_conf)[i]);
+ rte_free(priv->rss_conf);
+ }
+ if (priv->reta_idx != NULL)
+ rte_free(priv->reta_idx);
+ priv_unlock(priv);
+ memset(priv, 0, sizeof(*priv));
+}
+
+static const struct eth_dev_ops mlx5_dev_ops = {
+ .dev_configure = mlx5_dev_configure,
+ .dev_start = mlx5_dev_start,
+ .dev_stop = mlx5_dev_stop,
+ .dev_set_link_down = mlx5_set_link_down,
+ .dev_set_link_up = mlx5_set_link_up,
+ .dev_close = mlx5_dev_close,
+ .promiscuous_enable = mlx5_promiscuous_enable,
+ .promiscuous_disable = mlx5_promiscuous_disable,
+ .allmulticast_enable = mlx5_allmulticast_enable,
+ .allmulticast_disable = mlx5_allmulticast_disable,
+ .link_update = mlx5_link_update,
+ .stats_get = mlx5_stats_get,
+ .stats_reset = mlx5_stats_reset,
+ .dev_infos_get = mlx5_dev_infos_get,
+ .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
+ .vlan_filter_set = mlx5_vlan_filter_set,
+ .rx_queue_setup = mlx5_rx_queue_setup,
+ .tx_queue_setup = mlx5_tx_queue_setup,
+ .rx_queue_release = mlx5_rx_queue_release,
+ .tx_queue_release = mlx5_tx_queue_release,
+ .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
+ .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
+ .mac_addr_remove = mlx5_mac_addr_remove,
+ .mac_addr_add = mlx5_mac_addr_add,
+ .mac_addr_set = mlx5_mac_addr_set,
+ .mtu_set = mlx5_dev_set_mtu,
+#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
+ .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
+ .vlan_offload_set = mlx5_vlan_offload_set,
+#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
+ .reta_update = mlx5_dev_rss_reta_update,
+ .reta_query = mlx5_dev_rss_reta_query,
+ .rss_hash_update = mlx5_rss_hash_update,
+ .rss_hash_conf_get = mlx5_rss_hash_conf_get,
+#ifdef MLX5_FDIR_SUPPORT
+ .filter_ctrl = mlx5_dev_filter_ctrl,
+#endif /* MLX5_FDIR_SUPPORT */
+};
+
+static struct {
+ struct rte_pci_addr pci_addr; /* associated PCI address */
+ uint32_t ports; /* physical ports bitfield. */
+} mlx5_dev[32];
+
+/**
+ * Get device index in mlx5_dev[] from PCI bus address.
+ *
+ * @param[in] pci_addr
+ * PCI bus address to look for.
+ *
+ * @return
+ * mlx5_dev[] index on success, -1 on failure.
+ */
+static int
+mlx5_dev_idx(struct rte_pci_addr *pci_addr)
+{
+ unsigned int i;
+ int ret = -1;
+
+ assert(pci_addr != NULL);
+ for (i = 0; (i != RTE_DIM(mlx5_dev)); ++i) {
+ if ((mlx5_dev[i].pci_addr.domain == pci_addr->domain) &&
+ (mlx5_dev[i].pci_addr.bus == pci_addr->bus) &&
+ (mlx5_dev[i].pci_addr.devid == pci_addr->devid) &&
+ (mlx5_dev[i].pci_addr.function == pci_addr->function))
+ return i;
+ if ((mlx5_dev[i].ports == 0) && (ret == -1))
+ ret = i;
+ }
+ return ret;
+}
+
+static struct eth_driver mlx5_driver;
+
+/**
+ * DPDK callback to register a PCI device.
+ *
+ * This function creates an Ethernet device for each port of a given
+ * PCI device.
+ *
+ * @param[in] pci_drv
+ * PCI driver structure (mlx5_driver).
+ * @param[in] pci_dev
+ * PCI device information.
+ *
+ * @return
+ * 0 on success, negative errno value on failure.
+ */
+static int
+mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
+{
+ struct ibv_device **list;
+ struct ibv_device *ibv_dev;
+ int err = 0;
+ struct ibv_context *attr_ctx = NULL;
+ struct ibv_device_attr device_attr;
+ unsigned int vf;
+ unsigned int mps;
+ int idx;
+ int i;
+
+ (void)pci_drv;
+ assert(pci_drv == &mlx5_driver.pci_drv);
+ /* Get mlx5_dev[] index. */
+ idx = mlx5_dev_idx(&pci_dev->addr);
+ if (idx == -1) {
+ ERROR("this driver cannot support any more adapters");
+ return -ENOMEM;
+ }
+ DEBUG("using driver device index %d", idx);
+
+ /* Save PCI address. */
+ mlx5_dev[idx].pci_addr = pci_dev->addr;
+ list = ibv_get_device_list(&i);
+ if (list == NULL) {
+ assert(errno);
+ if (errno == ENOSYS) {
+ WARN("cannot list devices, is ib_uverbs loaded?");
+ return 0;
+ }
+ return -errno;
+ }
+ assert(i >= 0);
+ /*
+ * For each listed device, check related sysfs entry against
+ * the provided PCI ID.
+ */
+ while (i != 0) {
+ struct rte_pci_addr pci_addr;
+
+ --i;
+ DEBUG("checking device \"%s\"", list[i]->name);
+ if (mlx5_ibv_device_to_pci_addr(list[i], &pci_addr))
+ continue;
+ if ((pci_dev->addr.domain != pci_addr.domain) ||
+ (pci_dev->addr.bus != pci_addr.bus) ||
+ (pci_dev->addr.devid != pci_addr.devid) ||
+ (pci_dev->addr.function != pci_addr.function))
+ continue;
+ vf = ((pci_dev->id.device_id ==
+ PCI_DEVICE_ID_MELLANOX_CONNECTX4VF) ||
+ (pci_dev->id.device_id ==
+ PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF));
+ /* Multi-packet send is only supported by ConnectX-4 Lx PF. */
+ mps = (pci_dev->id.device_id ==
+ PCI_DEVICE_ID_MELLANOX_CONNECTX4LX);
+ INFO("PCI information matches, using device \"%s\" (VF: %s,"
+ " MPS: %s)",
+ list[i]->name,
+ vf ? "true" : "false",
+ mps ? "true" : "false");
+ attr_ctx = ibv_open_device(list[i]);
+ err = errno;
+ break;
+ }
+ if (attr_ctx == NULL) {
+ ibv_free_device_list(list);
+ switch (err) {
+ case 0:
+ WARN("cannot access device, is mlx5_ib loaded?");
+ return 0;
+ case EINVAL:
+ WARN("cannot use device, are drivers up to date?");
+ return 0;
+ }
+ assert(err > 0);
+ return -err;
+ }
+ ibv_dev = list[i];
+
+ DEBUG("device opened");
+ if (ibv_query_device(attr_ctx, &device_attr))
+ goto error;
+ INFO("%u port(s) detected", device_attr.phys_port_cnt);
+
+ for (i = 0; i < device_attr.phys_port_cnt; i++) {
+ uint32_t port = i + 1; /* ports are indexed from one */
+ uint32_t test = (1 << i);
+ struct ibv_context *ctx = NULL;
+ struct ibv_port_attr port_attr;
+ struct ibv_pd *pd = NULL;
+ struct priv *priv = NULL;
+ struct rte_eth_dev *eth_dev;
+#ifdef HAVE_EXP_QUERY_DEVICE
+ struct ibv_exp_device_attr exp_device_attr;
+#endif /* HAVE_EXP_QUERY_DEVICE */
+ struct ether_addr mac;
+
+#ifdef HAVE_EXP_QUERY_DEVICE
+ exp_device_attr.comp_mask =
+ IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS |
+ IBV_EXP_DEVICE_ATTR_RX_HASH |
+#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
+ IBV_EXP_DEVICE_ATTR_VLAN_OFFLOADS |
+#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
+#ifdef HAVE_VERBS_RX_END_PADDING
+ IBV_EXP_DEVICE_ATTR_RX_PAD_END_ALIGN |
+#endif /* HAVE_VERBS_RX_END_PADDING */
+ 0;
+#endif /* HAVE_EXP_QUERY_DEVICE */
+
+ DEBUG("using port %u (%08" PRIx32 ")", port, test);
+
+ ctx = ibv_open_device(ibv_dev);
+ if (ctx == NULL)
+ goto port_error;
+
+ /* Check port status. */
+ err = ibv_query_port(ctx, port, &port_attr);
+ if (err) {
+ ERROR("port query failed: %s", strerror(err));
+ goto port_error;
+ }
+
+ if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
+ ERROR("port %d is not configured in Ethernet mode",
+ port);
+ goto port_error;
+ }
+
+ if (port_attr.state != IBV_PORT_ACTIVE)
+ DEBUG("port %d is not active: \"%s\" (%d)",
+ port, ibv_port_state_str(port_attr.state),
+ port_attr.state);
+
+ /* Allocate protection domain. */
+ pd = ibv_alloc_pd(ctx);
+ if (pd == NULL) {
+ ERROR("PD allocation failure");
+ err = ENOMEM;
+ goto port_error;
+ }
+
+ mlx5_dev[idx].ports |= test;
+
+ /* from rte_ethdev.c */
+ priv = rte_zmalloc("ethdev private structure",
+ sizeof(*priv),
+ RTE_CACHE_LINE_SIZE);
+ if (priv == NULL) {
+ ERROR("priv allocation failure");
+ err = ENOMEM;
+ goto port_error;
+ }
+
+ priv->ctx = ctx;
+ priv->device_attr = device_attr;
+ priv->port = port;
+ priv->pd = pd;
+ priv->mtu = ETHER_MTU;
+#ifdef HAVE_EXP_QUERY_DEVICE
+ if (ibv_exp_query_device(ctx, &exp_device_attr)) {
+ ERROR("ibv_exp_query_device() failed");
+ goto port_error;
+ }
+
+ priv->hw_csum =
+ ((exp_device_attr.exp_device_cap_flags &
+ IBV_EXP_DEVICE_RX_CSUM_TCP_UDP_PKT) &&
+ (exp_device_attr.exp_device_cap_flags &
+ IBV_EXP_DEVICE_RX_CSUM_IP_PKT));
+ DEBUG("checksum offloading is %ssupported",
+ (priv->hw_csum ? "" : "not "));
+
+ priv->hw_csum_l2tun = !!(exp_device_attr.exp_device_cap_flags &
+ IBV_EXP_DEVICE_VXLAN_SUPPORT);
+ DEBUG("L2 tunnel checksum offloads are %ssupported",
+ (priv->hw_csum_l2tun ? "" : "not "));
+
+ priv->ind_table_max_size = exp_device_attr.rx_hash_caps.max_rwq_indirection_table_size;
+ /* Remove this check once DPDK supports larger/variable
+ * indirection tables. */
+ if (priv->ind_table_max_size > (unsigned int)RSS_INDIRECTION_TABLE_SIZE)
+ priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
+ DEBUG("maximum RX indirection table size is %u",
+ priv->ind_table_max_size);
+#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
+ priv->hw_vlan_strip = !!(exp_device_attr.wq_vlan_offloads_cap &
+ IBV_EXP_RECEIVE_WQ_CVLAN_STRIP);
+#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
+ DEBUG("VLAN stripping is %ssupported",
+ (priv->hw_vlan_strip ? "" : "not "));
+
+#ifdef HAVE_VERBS_FCS
+ priv->hw_fcs_strip = !!(exp_device_attr.exp_device_cap_flags &
+ IBV_EXP_DEVICE_SCATTER_FCS);
+#endif /* HAVE_VERBS_FCS */
+ DEBUG("FCS stripping configuration is %ssupported",
+ (priv->hw_fcs_strip ? "" : "not "));
+
+#ifdef HAVE_VERBS_RX_END_PADDING
+ priv->hw_padding = !!exp_device_attr.rx_pad_end_addr_align;
+#endif /* HAVE_VERBS_RX_END_PADDING */
+ DEBUG("hardware RX end alignment padding is %ssupported",
+ (priv->hw_padding ? "" : "not "));
+
+#else /* HAVE_EXP_QUERY_DEVICE */
+ priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
+#endif /* HAVE_EXP_QUERY_DEVICE */
+
+ priv->vf = vf;
+ priv->mps = mps;
+ /* Allocate and register default RSS hash keys. */
+ priv->rss_conf = rte_calloc(__func__, hash_rxq_init_n,
+ sizeof((*priv->rss_conf)[0]), 0);
+ if (priv->rss_conf == NULL) {
+ err = ENOMEM;
+ goto port_error;
+ }
+ err = rss_hash_rss_conf_new_key(priv,
+ rss_hash_default_key,
+ rss_hash_default_key_len,
+ ETH_RSS_PROTO_MASK);
+ if (err)
+ goto port_error;
+ /* Configure the first MAC address by default. */
+ if (priv_get_mac(priv, &mac.addr_bytes)) {
+ ERROR("cannot get MAC address, is mlx5_en loaded?"
+ " (errno: %s)", strerror(errno));
+ goto port_error;
+ }
+ INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
+ priv->port,
+ mac.addr_bytes[0], mac.addr_bytes[1],
+ mac.addr_bytes[2], mac.addr_bytes[3],
+ mac.addr_bytes[4], mac.addr_bytes[5]);
+ /* Register MAC address. */
+ claim_zero(priv_mac_addr_add(priv, 0,
+ (const uint8_t (*)[ETHER_ADDR_LEN])
+ mac.addr_bytes));
+ /* Initialize FD filters list. */
+ err = fdir_init_filters_list(priv);
+ if (err)
+ goto port_error;
+#ifndef NDEBUG
+ {
+ char ifname[IF_NAMESIZE];
+
+ if (priv_get_ifname(priv, &ifname) == 0)
+ DEBUG("port %u ifname is \"%s\"",
+ priv->port, ifname);
+ else
+ DEBUG("port %u ifname is unknown", priv->port);
+ }
+#endif
+ /* Get actual MTU if possible. */
+ priv_get_mtu(priv, &priv->mtu);
+ DEBUG("port %u MTU is %u", priv->port, priv->mtu);
+
+ /* from rte_ethdev.c */
+ {
+ char name[RTE_ETH_NAME_MAX_LEN];
+
+ snprintf(name, sizeof(name), "%s port %u",
+ ibv_get_device_name(ibv_dev), port);
+ eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
+ }
+ if (eth_dev == NULL) {
+ ERROR("can not allocate rte ethdev");
+ err = ENOMEM;
+ goto port_error;
+ }
+
+ /* Secondary processes have to use local storage for their
+ * private data as well as a copy of eth_dev->data, but this
+ * pointer must not be modified before burst functions are
+ * actually called. */
+ if (mlx5_is_secondary()) {
+ struct mlx5_secondary_data *sd =
+ &mlx5_secondary_data[eth_dev->data->port_id];
+ sd->primary_priv = eth_dev->data->dev_private;
+ if (sd->primary_priv == NULL) {
+ ERROR("no private data for port %u",
+ eth_dev->data->port_id);
+ err = EINVAL;
+ goto port_error;
+ }
+ sd->shared_dev_data = eth_dev->data;
+ rte_spinlock_init(&sd->lock);
+ memcpy(sd->data.name, sd->shared_dev_data->name,
+ sizeof(sd->data.name));
+ sd->data.dev_private = priv;
+ sd->data.rx_mbuf_alloc_failed = 0;
+ sd->data.mtu = ETHER_MTU;
+ sd->data.port_id = sd->shared_dev_data->port_id;
+ sd->data.mac_addrs = priv->mac;
+ eth_dev->tx_pkt_burst = mlx5_tx_burst_secondary_setup;
+ eth_dev->rx_pkt_burst = mlx5_rx_burst_secondary_setup;
+ } else {
+ eth_dev->data->dev_private = priv;
+ eth_dev->data->rx_mbuf_alloc_failed = 0;
+ eth_dev->data->mtu = ETHER_MTU;
+ eth_dev->data->mac_addrs = priv->mac;
+ }
+
+ eth_dev->pci_dev = pci_dev;
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+ eth_dev->driver = &mlx5_driver;
+ priv->dev = eth_dev;
+ eth_dev->dev_ops = &mlx5_dev_ops;
+
+ TAILQ_INIT(ð_dev->link_intr_cbs);
+
+ /* Bring Ethernet device up. */
+ DEBUG("forcing Ethernet interface up");
+ priv_set_flags(priv, ~IFF_UP, IFF_UP);
+ continue;
+
+port_error:
+ if (priv) {
+ rte_free(priv->rss_conf);
+ rte_free(priv);
+ }
+ if (pd)
+ claim_zero(ibv_dealloc_pd(pd));
+ if (ctx)
+ claim_zero(ibv_close_device(ctx));
+ break;
+ }
+
+ /*
+ * XXX if something went wrong in the loop above, there is a resource
+ * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as
+ * long as the dpdk does not provide a way to deallocate a ethdev and a
+ * way to enumerate the registered ethdevs to free the previous ones.
+ */
+
+ /* no port found, complain */
+ if (!mlx5_dev[idx].ports) {
+ err = ENODEV;
+ goto error;
+ }
+
+error:
+ if (attr_ctx)
+ claim_zero(ibv_close_device(attr_ctx));
+ if (list)
+ ibv_free_device_list(list);
+ assert(err >= 0);
+ return -err;
+}
+
+static const struct rte_pci_id mlx5_pci_id_map[] = {
+ {
+ .vendor_id = PCI_VENDOR_ID_MELLANOX,
+ .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4,
+ .subsystem_vendor_id = PCI_ANY_ID,
+ .subsystem_device_id = PCI_ANY_ID
+ },
+ {
+ .vendor_id = PCI_VENDOR_ID_MELLANOX,
+ .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4VF,
+ .subsystem_vendor_id = PCI_ANY_ID,
+ .subsystem_device_id = PCI_ANY_ID
+ },
+ {
+ .vendor_id = PCI_VENDOR_ID_MELLANOX,
+ .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LX,
+ .subsystem_vendor_id = PCI_ANY_ID,
+ .subsystem_device_id = PCI_ANY_ID
+ },
+ {
+ .vendor_id = PCI_VENDOR_ID_MELLANOX,
+ .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF,
+ .subsystem_vendor_id = PCI_ANY_ID,
+ .subsystem_device_id = PCI_ANY_ID
+ },
+ {
+ .vendor_id = 0
+ }
+};
+
+static struct eth_driver mlx5_driver = {
+ .pci_drv = {
+ .name = MLX5_DRIVER_NAME,
+ .id_table = mlx5_pci_id_map,
+ .devinit = mlx5_pci_devinit,
+ .drv_flags = RTE_PCI_DRV_INTR_LSC,
+ },
+ .dev_private_size = sizeof(struct priv)
+};
+
+/**
+ * Driver initialization routine.
+ */
+static int
+rte_mlx5_pmd_init(const char *name, const char *args)
+{
+ (void)name;
+ (void)args;
+ /*
+ * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
+ * huge pages. Calling ibv_fork_init() during init allows
+ * applications to use fork() safely for purposes other than
+ * using this PMD, which is not supported in forked processes.
+ */
+ setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
+ ibv_fork_init();
+ rte_eal_pci_register(&mlx5_driver.pci_drv);
+ return 0;
+}
+
+static struct rte_driver rte_mlx5_driver = {
+ .type = PMD_PDEV,
+ .name = MLX5_DRIVER_NAME,
+ .init = rte_mlx5_pmd_init,
+};
+
+PMD_REGISTER_DRIVER(rte_mlx5_driver)
Code Review / deb_dpdk.git / blobdiff