From 97f17497d162afdb82c8704bf097f0fee3724b2e Mon Sep 17 00:00:00 2001 From: "C.J. Collier" Date: Tue, 14 Jun 2016 07:50:17 -0700 Subject: Imported Upstream version 16.04 Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757 Signed-off-by: C.J. Collier --- drivers/net/mlx5/mlx5.c | 675 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 675 insertions(+) create mode 100644 drivers/net/mlx5/mlx5.c (limited to 'drivers/net/mlx5/mlx5.c') diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c new file mode 100644 index 00000000..041cfc33 --- /dev/null +++ b/drivers/net/mlx5/mlx5.c @@ -0,0 +1,675 @@ +/*- + * 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 +#include +#include +#include +#include +#include +#include + +/* Verbs header. */ +/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ +#ifdef PEDANTIC +#pragma GCC diagnostic ignored "-pedantic" +#endif +#include +#ifdef PEDANTIC +#pragma GCC diagnostic error "-pedantic" +#endif + +/* DPDK headers don't like -pedantic. */ +#ifdef PEDANTIC +#pragma GCC diagnostic ignored "-pedantic" +#endif +#include +#include +#include +#include +#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) -- cgit 1.2.3-korg