| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Roland Dreier | 2859 | 15.66% | 10 | 3.76% |
| Moni Shoua | 2531 | 13.86% | 16 | 6.02% |
| Jack Morgenstein | 2162 | 11.84% | 38 | 14.29% |
| Matan Barak | 1758 | 9.63% | 18 | 6.77% |
| Eli Cohen | 1692 | 9.27% | 10 | 3.76% |
| Hadar Hen Zion | 1278 | 7.00% | 4 | 1.50% |
| Mark Bloch | 921 | 5.04% | 3 | 1.13% |
| Or Gerlitz | 579 | 3.17% | 12 | 4.51% |
| Yishai Hadas | 576 | 3.15% | 7 | 2.63% |
| Kamal Heib | 509 | 2.79% | 4 | 1.50% |
| Petr Pavlu | 398 | 2.18% | 4 | 1.50% |
| Marina Varshaver | 326 | 1.79% | 2 | 0.75% |
| Eran Ben Elisha | 303 | 1.66% | 3 | 1.13% |
| Leon Romanovsky | 228 | 1.25% | 20 | 7.52% |
| Yevgeny Petrilin | 214 | 1.17% | 9 | 3.38% |
| Guy Levi | 212 | 1.16% | 5 | 1.88% |
| Shlomo Pongratz | 208 | 1.14% | 3 | 1.13% |
| Sean Hefty | 207 | 1.13% | 2 | 0.75% |
| Maor Gottlieb | 146 | 0.80% | 3 | 1.13% |
| Jason Gunthorpe | 143 | 0.78% | 11 | 4.14% |
| Ira Weiny | 130 | 0.71% | 4 | 1.50% |
| Parav Pandit | 108 | 0.59% | 7 | 2.63% |
| Marcel Apfelbaum | 96 | 0.53% | 1 | 0.38% |
| Ursula Braun-Krahl | 87 | 0.48% | 1 | 0.38% |
| Oren Duer | 48 | 0.26% | 1 | 0.38% |
| Shani Michaelli | 44 | 0.24% | 1 | 0.38% |
| Danit Goldberg | 40 | 0.22% | 1 | 0.38% |
| Saeed Mahameed | 38 | 0.21% | 1 | 0.38% |
| Adit Ranadive | 32 | 0.18% | 1 | 0.38% |
| Jiri Pirko | 31 | 0.17% | 1 | 0.38% |
| Aharon Landau | 30 | 0.16% | 1 | 0.38% |
| Jack Wang | 29 | 0.16% | 1 | 0.38% |
| Yonatan Cohen | 23 | 0.13% | 2 | 0.75% |
| Doug Ledford | 21 | 0.12% | 2 | 0.75% |
| Dotan Barak | 17 | 0.09% | 3 | 1.13% |
| Tony Jones | 16 | 0.09% | 1 | 0.38% |
| Boris Pismenny | 16 | 0.09% | 1 | 0.38% |
| Markus Stockhausen | 16 | 0.09% | 1 | 0.38% |
| Sagi Grimberg | 14 | 0.08% | 5 | 1.88% |
| Tetsuo Handa | 13 | 0.07% | 1 | 0.38% |
| Mark Zhang | 13 | 0.07% | 1 | 0.38% |
| Vladimir Sokolovsky | 11 | 0.06% | 2 | 0.75% |
| Ron Livne | 10 | 0.05% | 1 | 0.38% |
| ruanjinjie | 9 | 0.05% | 1 | 0.38% |
| Dan Carpenter | 7 | 0.04% | 2 | 0.75% |
| Bodong Wang | 6 | 0.03% | 1 | 0.38% |
| Steve Wise | 6 | 0.03% | 1 | 0.38% |
| Kees Cook | 6 | 0.03% | 1 | 0.38% |
| Ingo Molnar | 6 | 0.03% | 2 | 0.75% |
| Michal Kalderon | 6 | 0.03% | 1 | 0.38% |
| Dennis Dalessandro | 5 | 0.03% | 1 | 0.38% |
| Pan Bian | 5 | 0.03% | 1 | 0.38% |
| Eugenia Emantayev | 5 | 0.03% | 2 | 0.75% |
| Maninder Singh | 5 | 0.03% | 1 | 0.38% |
| Alaa Hleihel | 5 | 0.03% | 1 | 0.38% |
| Christoph Hellwig | 4 | 0.02% | 2 | 0.75% |
| Erez Shitrit | 4 | 0.02% | 1 | 0.38% |
| Moshe Shemesh | 4 | 0.02% | 1 | 0.38% |
| Shay Drory | 4 | 0.02% | 1 | 0.38% |
| Bhaktipriya Shridhar | 3 | 0.02% | 1 | 0.38% |
| Yuval Shaia | 3 | 0.02% | 1 | 0.38% |
| Jesper Juhl | 3 | 0.02% | 1 | 0.38% |
| Amir Vadai | 3 | 0.02% | 2 | 0.75% |
| Christophe Jaillet | 3 | 0.02% | 1 | 0.38% |
| Joe Perches | 3 | 0.02% | 1 | 0.38% |
| Bart Van Assche | 2 | 0.01% | 2 | 0.75% |
| Tom Duffy | 2 | 0.01% | 1 | 0.38% |
| Tariq Toukan | 2 | 0.01% | 1 | 0.38% |
| Aleksey Senin | 2 | 0.01% | 1 | 0.38% |
| Fabian Frederick | 2 | 0.01% | 1 | 0.38% |
| Linus Torvalds (pre-git) | 2 | 0.01% | 1 | 0.38% |
| Jakub Kiciński | 1 | 0.01% | 1 | 0.38% |
| Linus Torvalds | 1 | 0.01% | 1 | 0.38% |
| Gustavo A. R. Silva | 1 | 0.01% | 1 | 0.38% |
| Colin Ian King | 1 | 0.01% | 1 | 0.38% |
| Ido Shamay | 1 | 0.01% | 1 | 0.38% |
| shamir rabinovitch | 1 | 0.01% | 1 | 0.38% |
| Daniel Jurgens | 1 | 0.01% | 1 | 0.38% |
| Total | 18257 | 266 |
/* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * 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. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/errno.h> #include <linux/netdevice.h> #include <linux/inetdevice.h> #include <linux/rtnetlink.h> #include <linux/if_vlan.h> #include <linux/sched/mm.h> #include <linux/sched/task.h> #include <net/ipv6.h> #include <net/addrconf.h> #include <net/devlink.h> #include <rdma/ib_smi.h> #include <rdma/ib_user_verbs.h> #include <rdma/ib_addr.h> #include <rdma/ib_cache.h> #include <net/bonding.h> #include <linux/mlx4/driver.h> #include <linux/mlx4/cmd.h> #include <linux/mlx4/qp.h> #include "mlx4_ib.h" #include <rdma/mlx4-abi.h> #define DRV_NAME MLX4_IB_DRV_NAME #define DRV_VERSION "4.0-0" #define MLX4_IB_FLOW_MAX_PRIO 0xFFF #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF #define MLX4_IB_CARD_REV_A0 0xA0 MODULE_AUTHOR("Roland Dreier"); MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); MODULE_LICENSE("Dual BSD/GPL"); int mlx4_ib_sm_guid_assign = 0; module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444); MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)"); static const char mlx4_ib_version[] = DRV_NAME ": Mellanox ConnectX InfiniBand driver v" DRV_VERSION "\n"; static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init); static enum rdma_link_layer mlx4_ib_port_link_layer(struct ib_device *device, u32 port_num); static int mlx4_ib_event(struct notifier_block *this, unsigned long event, void *param); static struct workqueue_struct *wq; static int check_flow_steering_support(struct mlx4_dev *dev) { int eth_num_ports = 0; int ib_num_ports = 0; int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED; if (dmfs) { int i; mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) eth_num_ports++; mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) ib_num_ports++; dmfs &= (!ib_num_ports || (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) && (!eth_num_ports || (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)); if (ib_num_ports && mlx4_is_mfunc(dev)) { pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n"); dmfs = 0; } } return dmfs; } static int num_ib_ports(struct mlx4_dev *dev) { int ib_ports = 0; int i; mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) ib_ports++; return ib_ports; } static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u32 port_num) { struct mlx4_ib_dev *ibdev = to_mdev(device); struct net_device *dev, *ret = NULL; rcu_read_lock(); for_each_netdev_rcu(&init_net, dev) { if (dev->dev.parent != ibdev->ib_dev.dev.parent || dev->dev_port + 1 != port_num) continue; if (mlx4_is_bonded(ibdev->dev)) { struct net_device *upper; upper = netdev_master_upper_dev_get_rcu(dev); if (upper) { struct net_device *active; active = bond_option_active_slave_get_rcu(netdev_priv(upper)); if (active) dev = active; } } dev_hold(dev); ret = dev; break; } rcu_read_unlock(); return ret; } static int mlx4_ib_update_gids_v1(struct gid_entry *gids, struct mlx4_ib_dev *ibdev, u32 port_num) { struct mlx4_cmd_mailbox *mailbox; int err; struct mlx4_dev *dev = ibdev->dev; int i; union ib_gid *gid_tbl; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) return -ENOMEM; gid_tbl = mailbox->buf; for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) memcpy(&gid_tbl[i], &gids[i].gid, sizeof(union ib_gid)); err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | port_num, 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); if (mlx4_is_bonded(dev)) err += mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | 2, 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); mlx4_free_cmd_mailbox(dev, mailbox); return err; } static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids, struct mlx4_ib_dev *ibdev, u32 port_num) { struct mlx4_cmd_mailbox *mailbox; int err; struct mlx4_dev *dev = ibdev->dev; int i; struct { union ib_gid gid; __be32 rsrvd1[2]; __be16 rsrvd2; u8 type; u8 version; __be32 rsrvd3; } *gid_tbl; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) return -ENOMEM; gid_tbl = mailbox->buf; for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) { memcpy(&gid_tbl[i].gid, &gids[i].gid, sizeof(union ib_gid)); if (gids[i].gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) { gid_tbl[i].version = 2; if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid)) gid_tbl[i].type = 1; } } err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_ROCE_ADDR << 8 | port_num, 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); if (mlx4_is_bonded(dev)) err += mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_ROCE_ADDR << 8 | 2, 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); mlx4_free_cmd_mailbox(dev, mailbox); return err; } static int mlx4_ib_update_gids(struct gid_entry *gids, struct mlx4_ib_dev *ibdev, u32 port_num) { if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) return mlx4_ib_update_gids_v1_v2(gids, ibdev, port_num); return mlx4_ib_update_gids_v1(gids, ibdev, port_num); } static void free_gid_entry(struct gid_entry *entry) { memset(&entry->gid, 0, sizeof(entry->gid)); kfree(entry->ctx); entry->ctx = NULL; } static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context) { struct mlx4_ib_dev *ibdev = to_mdev(attr->device); struct mlx4_ib_iboe *iboe = &ibdev->iboe; struct mlx4_port_gid_table *port_gid_table; int free = -1, found = -1; int ret = 0; int hw_update = 0; int i; struct gid_entry *gids; u16 vlan_id = 0xffff; u8 mac[ETH_ALEN]; if (!rdma_cap_roce_gid_table(attr->device, attr->port_num)) return -EINVAL; if (attr->port_num > MLX4_MAX_PORTS) return -EINVAL; if (!context) return -EINVAL; ret = rdma_read_gid_l2_fields(attr, &vlan_id, &mac[0]); if (ret) return ret; port_gid_table = &iboe->gids[attr->port_num - 1]; spin_lock_bh(&iboe->lock); for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) { if (!memcmp(&port_gid_table->gids[i].gid, &attr->gid, sizeof(attr->gid)) && port_gid_table->gids[i].gid_type == attr->gid_type && port_gid_table->gids[i].vlan_id == vlan_id) { found = i; break; } if (free < 0 && rdma_is_zero_gid(&port_gid_table->gids[i].gid)) free = i; /* HW has space */ } if (found < 0) { if (free < 0) { ret = -ENOSPC; } else { port_gid_table->gids[free].ctx = kmalloc(sizeof(*port_gid_table->gids[free].ctx), GFP_ATOMIC); if (!port_gid_table->gids[free].ctx) { ret = -ENOMEM; } else { *context = port_gid_table->gids[free].ctx; port_gid_table->gids[free].gid = attr->gid; port_gid_table->gids[free].gid_type = attr->gid_type; port_gid_table->gids[free].vlan_id = vlan_id; port_gid_table->gids[free].ctx->real_index = free; port_gid_table->gids[free].ctx->refcount = 1; hw_update = 1; } } } else { struct gid_cache_context *ctx = port_gid_table->gids[found].ctx; *context = ctx; ctx->refcount++; } if (!ret && hw_update) { gids = kmalloc_array(MLX4_MAX_PORT_GIDS, sizeof(*gids), GFP_ATOMIC); if (!gids) { ret = -ENOMEM; *context = NULL; free_gid_entry(&port_gid_table->gids[free]); } else { for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) { memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid)); gids[i].gid_type = port_gid_table->gids[i].gid_type; } } } spin_unlock_bh(&iboe->lock); if (!ret && hw_update) { ret = mlx4_ib_update_gids(gids, ibdev, attr->port_num); if (ret) { spin_lock_bh(&iboe->lock); *context = NULL; free_gid_entry(&port_gid_table->gids[free]); spin_unlock_bh(&iboe->lock); } kfree(gids); } return ret; } static int mlx4_ib_del_gid(const struct ib_gid_attr *attr, void **context) { struct gid_cache_context *ctx = *context; struct mlx4_ib_dev *ibdev = to_mdev(attr->device); struct mlx4_ib_iboe *iboe = &ibdev->iboe; struct mlx4_port_gid_table *port_gid_table; int ret = 0; int hw_update = 0; struct gid_entry *gids; if (!rdma_cap_roce_gid_table(attr->device, attr->port_num)) return -EINVAL; if (attr->port_num > MLX4_MAX_PORTS) return -EINVAL; port_gid_table = &iboe->gids[attr->port_num - 1]; spin_lock_bh(&iboe->lock); if (ctx) { ctx->refcount--; if (!ctx->refcount) { unsigned int real_index = ctx->real_index; free_gid_entry(&port_gid_table->gids[real_index]); hw_update = 1; } } if (!ret && hw_update) { int i; gids = kmalloc_array(MLX4_MAX_PORT_GIDS, sizeof(*gids), GFP_ATOMIC); if (!gids) { ret = -ENOMEM; } else { for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) { memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid)); gids[i].gid_type = port_gid_table->gids[i].gid_type; } } } spin_unlock_bh(&iboe->lock); if (!ret && hw_update) { ret = mlx4_ib_update_gids(gids, ibdev, attr->port_num); kfree(gids); } return ret; } int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev, const struct ib_gid_attr *attr) { struct mlx4_ib_iboe *iboe = &ibdev->iboe; struct gid_cache_context *ctx = NULL; struct mlx4_port_gid_table *port_gid_table; int real_index = -EINVAL; int i; unsigned long flags; u32 port_num = attr->port_num; if (port_num > MLX4_MAX_PORTS) return -EINVAL; if (mlx4_is_bonded(ibdev->dev)) port_num = 1; if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num)) return attr->index; spin_lock_irqsave(&iboe->lock, flags); port_gid_table = &iboe->gids[port_num - 1]; for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) if (!memcmp(&port_gid_table->gids[i].gid, &attr->gid, sizeof(attr->gid)) && attr->gid_type == port_gid_table->gids[i].gid_type) { ctx = port_gid_table->gids[i].ctx; break; } if (ctx) real_index = ctx->real_index; spin_unlock_irqrestore(&iboe->lock, flags); return real_index; } static int mlx4_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *props, struct ib_udata *uhw) { struct mlx4_ib_dev *dev = to_mdev(ibdev); struct ib_smp *in_mad; struct ib_smp *out_mad; int err; int have_ib_ports; struct mlx4_uverbs_ex_query_device cmd; struct mlx4_uverbs_ex_query_device_resp resp = {}; struct mlx4_clock_params clock_params; if (uhw->inlen) { if (uhw->inlen < sizeof(cmd)) return -EINVAL; err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd)); if (err) return err; if (cmd.comp_mask) return -EINVAL; if (cmd.reserved) return -EINVAL; } resp.response_length = offsetof(typeof(resp), response_length) + sizeof(resp.response_length); in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); err = -ENOMEM; if (!in_mad || !out_mad) goto out; ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS, 1, NULL, NULL, in_mad, out_mad); if (err) goto out; memset(props, 0, sizeof *props); have_ib_ports = num_ib_ports(dev->dev); props->fw_ver = dev->dev->caps.fw_ver; props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | IB_DEVICE_PORT_ACTIVE_EVENT | IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_RC_RNR_NAK_GEN; props->kernel_cap_flags = IBK_BLOCK_MULTICAST_LOOPBACK; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports) props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; if (dev->dev->caps.max_gso_sz && (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) && (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)) props->kernel_cap_flags |= IBK_UD_TSO; if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) props->kernel_cap_flags |= IBK_LOCAL_DMA_LKEY; if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) props->device_cap_flags |= IB_DEVICE_XRC; if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW) props->device_cap_flags |= IB_DEVICE_MEM_WINDOW; if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) { if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B) props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B; else props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A; } if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING; props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM; props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 0xffffff; props->vendor_part_id = dev->dev->persist->pdev->device; props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); memcpy(&props->sys_image_guid, out_mad->data + 4, 8); props->max_mr_size = ~0ull; props->page_size_cap = dev->dev->caps.page_size_cap; props->max_qp = dev->dev->quotas.qp; props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; props->max_send_sge = min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); props->max_recv_sge = min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); props->max_sge_rd = MLX4_MAX_SGE_RD; props->max_cq = dev->dev->quotas.cq; props->max_cqe = dev->dev->caps.max_cqes; props->max_mr = dev->dev->quotas.mpt; props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; props->max_srq = dev->dev->quotas.srq; props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; props->max_srq_sge = dev->dev->caps.max_srq_sge; props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES; props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; props->masked_atomic_cap = props->atomic_cap; props->max_pkeys = dev->dev->caps.pkey_table_len[1]; props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * props->max_mcast_grp; props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL; props->timestamp_mask = 0xFFFFFFFFFFFFULL; props->max_ah = INT_MAX; if (mlx4_ib_port_link_layer(ibdev, 1) == IB_LINK_LAYER_ETHERNET || mlx4_ib_port_link_layer(ibdev, 2) == IB_LINK_LAYER_ETHERNET) { if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) { props->rss_caps.max_rwq_indirection_tables = props->max_qp; props->rss_caps.max_rwq_indirection_table_size = dev->dev->caps.max_rss_tbl_sz; props->rss_caps.supported_qpts = 1 << IB_QPT_RAW_PACKET; props->max_wq_type_rq = props->max_qp; } if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP) props->raw_packet_caps |= IB_RAW_PACKET_CAP_SCATTER_FCS; } props->cq_caps.max_cq_moderation_count = MLX4_MAX_CQ_COUNT; props->cq_caps.max_cq_moderation_period = MLX4_MAX_CQ_PERIOD; if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) { resp.response_length += sizeof(resp.hca_core_clock_offset); if (!mlx4_get_internal_clock_params(dev->dev, &clock_params)) { resp.comp_mask |= MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET; resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE; } } if (uhw->outlen >= resp.response_length + sizeof(resp.max_inl_recv_sz)) { resp.response_length += sizeof(resp.max_inl_recv_sz); resp.max_inl_recv_sz = dev->dev->caps.max_rq_sg * sizeof(struct mlx4_wqe_data_seg); } if (offsetofend(typeof(resp), rss_caps) <= uhw->outlen) { if (props->rss_caps.supported_qpts) { resp.rss_caps.rx_hash_function = MLX4_IB_RX_HASH_FUNC_TOEPLITZ; resp.rss_caps.rx_hash_fields_mask = MLX4_IB_RX_HASH_SRC_IPV4 | MLX4_IB_RX_HASH_DST_IPV4 | MLX4_IB_RX_HASH_SRC_IPV6 | MLX4_IB_RX_HASH_DST_IPV6 | MLX4_IB_RX_HASH_SRC_PORT_TCP | MLX4_IB_RX_HASH_DST_PORT_TCP | MLX4_IB_RX_HASH_SRC_PORT_UDP | MLX4_IB_RX_HASH_DST_PORT_UDP; if (dev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) resp.rss_caps.rx_hash_fields_mask |= MLX4_IB_RX_HASH_INNER; } resp.response_length = offsetof(typeof(resp), rss_caps) + sizeof(resp.rss_caps); } if (offsetofend(typeof(resp), tso_caps) <= uhw->outlen) { if (dev->dev->caps.max_gso_sz && ((mlx4_ib_port_link_layer(ibdev, 1) == IB_LINK_LAYER_ETHERNET) || (mlx4_ib_port_link_layer(ibdev, 2) == IB_LINK_LAYER_ETHERNET))) { resp.tso_caps.max_tso = dev->dev->caps.max_gso_sz; resp.tso_caps.supported_qpts |= 1 << IB_QPT_RAW_PACKET; } resp.response_length = offsetof(typeof(resp), tso_caps) + sizeof(resp.tso_caps); } if (uhw->outlen) { err = ib_copy_to_udata(uhw, &resp, resp.response_length); if (err) goto out; } out: kfree(in_mad); kfree(out_mad); return err; } static enum rdma_link_layer mlx4_ib_port_link_layer(struct ib_device *device, u32 port_num) { struct mlx4_dev *dev = to_mdev(device)->dev; return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ? IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; } static int ib_link_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props, int netw_view) { struct ib_smp *in_mad; struct ib_smp *out_mad; int ext_active_speed; int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; int err = -ENOMEM; in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); if (!in_mad || !out_mad) goto out; ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; in_mad->attr_mod = cpu_to_be32(port); if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); if (err) goto out; props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); props->lmc = out_mad->data[34] & 0x7; props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); props->sm_sl = out_mad->data[36] & 0xf; props->state = out_mad->data[32] & 0xf; props->phys_state = out_mad->data[33] >> 4; props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); if (netw_view) props->gid_tbl_len = out_mad->data[50]; else props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); props->active_width = out_mad->data[31] & 0xf; props->active_speed = out_mad->data[35] >> 4; props->max_mtu = out_mad->data[41] & 0xf; props->active_mtu = out_mad->data[36] >> 4; props->subnet_timeout = out_mad->data[51] & 0x1f; props->max_vl_num = out_mad->data[37] >> 4; props->init_type_reply = out_mad->data[41] >> 4; /* Check if extended speeds (EDR/FDR/...) are supported */ if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { ext_active_speed = out_mad->data[62] >> 4; switch (ext_active_speed) { case 1: props->active_speed = IB_SPEED_FDR; break; case 2: props->active_speed = IB_SPEED_EDR; break; } } /* If reported active speed is QDR, check if is FDR-10 */ if (props->active_speed == IB_SPEED_QDR) { ib_init_query_mad(in_mad); in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO; in_mad->attr_mod = cpu_to_be32(port); err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); if (err) goto out; /* Checking LinkSpeedActive for FDR-10 */ if (out_mad->data[15] & 0x1) props->active_speed = IB_SPEED_FDR10; } /* Avoid wrong speed value returned by FW if the IB link is down. */ if (props->state == IB_PORT_DOWN) props->active_speed = IB_SPEED_SDR; out: kfree(in_mad); kfree(out_mad); return err; } static u8 state_to_phys_state(enum ib_port_state state) { return state == IB_PORT_ACTIVE ? IB_PORT_PHYS_STATE_LINK_UP : IB_PORT_PHYS_STATE_DISABLED; } static int eth_link_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props) { struct mlx4_ib_dev *mdev = to_mdev(ibdev); struct mlx4_ib_iboe *iboe = &mdev->iboe; struct net_device *ndev; enum ib_mtu tmp; struct mlx4_cmd_mailbox *mailbox; int err = 0; int is_bonded = mlx4_is_bonded(mdev->dev); mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); if (err) goto out; props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) || (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ? IB_WIDTH_4X : IB_WIDTH_1X; props->active_speed = (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ? IB_SPEED_FDR : IB_SPEED_QDR; props->port_cap_flags = IB_PORT_CM_SUP; props->ip_gids = true; props->gid_tbl_len = mdev->dev->caps.gid_table_len[port]; props->max_msg_sz = mdev->dev->caps.max_msg_sz; if (mdev->dev->caps.pkey_table_len[port]) props->pkey_tbl_len = 1; props->max_mtu = IB_MTU_4096; props->max_vl_num = 2; props->state = IB_PORT_DOWN; props->phys_state = state_to_phys_state(props->state); props->active_mtu = IB_MTU_256; spin_lock_bh(&iboe->lock); ndev = iboe->netdevs[port - 1]; if (ndev && is_bonded) { rcu_read_lock(); /* required to get upper dev */ ndev = netdev_master_upper_dev_get_rcu(ndev); rcu_read_unlock(); } if (!ndev) goto out_unlock; tmp = iboe_get_mtu(ndev->mtu); props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256; props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ? IB_PORT_ACTIVE : IB_PORT_DOWN; props->phys_state = state_to_phys_state(props->state); out_unlock: spin_unlock_bh(&iboe->lock); out: mlx4_free_cmd_mailbox(mdev->dev, mailbox); return err; } int __mlx4_ib_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props, int netw_view) { int err; /* props being zeroed by the caller, avoid zeroing it here */ err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ? ib_link_query_port(ibdev, port, props, netw_view) : eth_link_query_port(ibdev, port, props); return err; } static int mlx4_ib_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props) { /* returns host view */ return __mlx4_ib_query_port(ibdev, port, props, 0); } int __mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index, union ib_gid *gid, int netw_view) { struct ib_smp *in_mad; struct ib_smp *out_mad; int err = -ENOMEM; struct mlx4_ib_dev *dev = to_mdev(ibdev); int clear = 0; int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); if (!in_mad || !out_mad) goto out; ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; in_mad->attr_mod = cpu_to_be32(port); if (mlx4_is_mfunc(dev->dev) && netw_view) mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); if (err) goto out; memcpy(gid->raw, out_mad->data + 8, 8); if (mlx4_is_mfunc(dev->dev) && !netw_view) { if (index) { /* For any index > 0, return the null guid */ err = 0; clear = 1; goto out; } } ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; in_mad->attr_mod = cpu_to_be32(index / 8); err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); if (err) goto out; memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); out: if (clear) memset(gid->raw + 8, 0, 8); kfree(in_mad); kfree(out_mad); return err; } static int mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index, union ib_gid *gid) { if (rdma_protocol_ib(ibdev, port)) return __mlx4_ib_query_gid(ibdev, port, index, gid, 0); return 0; } static int mlx4_ib_query_sl2vl(struct ib_device *ibdev, u32 port, u64 *sl2vl_tbl) { union sl2vl_tbl_to_u64 sl2vl64; struct ib_smp *in_mad; struct ib_smp *out_mad; int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; int err = -ENOMEM; int jj; if (mlx4_is_slave(to_mdev(ibdev)->dev)) { *sl2vl_tbl = 0; return 0; } in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); if (!in_mad || !out_mad) goto out; ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_SL_TO_VL_TABLE; in_mad->attr_mod = 0; if (mlx4_is_mfunc(to_mdev(ibdev)->dev)) mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); if (err) goto out; for (jj = 0; jj < 8; jj++) sl2vl64.sl8[jj] = ((struct ib_smp *)out_mad)->data[jj]; *sl2vl_tbl = sl2vl64.sl64; out: kfree(in_mad); kfree(out_mad); return err; } static void mlx4_init_sl2vl_tbl(struct mlx4_ib_dev *mdev) { u64 sl2vl; int i; int err; for (i = 1; i <= mdev->dev->caps.num_ports; i++) { if (mdev->dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) continue; err = mlx4_ib_query_sl2vl(&mdev->ib_dev, i, &sl2vl); if (err) { pr_err("Unable to get default sl to vl mapping for port %d. Using all zeroes (%d)\n", i, err); sl2vl = 0; } atomic64_set(&mdev->sl2vl[i - 1], sl2vl); } } int __mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey, int netw_view) { struct ib_smp *in_mad; struct ib_smp *out_mad; int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; int err = -ENOMEM; in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); if (!in_mad || !out_mad) goto out; ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; in_mad->attr_mod = cpu_to_be32(index / 32); if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); if (err) goto out; *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); out: kfree(in_mad); kfree(out_mad); return err; } static int mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey) { return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0); } static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, struct ib_device_modify *props) { struct mlx4_cmd_mailbox *mailbox; unsigned long flags; if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) return -EOPNOTSUPP; if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) return 0; if (mlx4_is_slave(to_mdev(ibdev)->dev)) return -EOPNOTSUPP; spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags); memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX); spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags); /* * If possible, pass node desc to FW, so it can generate * a 144 trap. If cmd fails, just ignore. */ mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev); if (IS_ERR(mailbox)) return 0; memcpy(mailbox->buf, props->node_desc, IB_DEVICE_NODE_DESC_MAX); mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); return 0; } static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u32 port, int reset_qkey_viols, u32 cap_mask) { struct mlx4_cmd_mailbox *mailbox; int err; mailbox = mlx4_alloc_cmd_mailbox(dev->dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); } else { ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); } err = mlx4_cmd(dev->dev, mailbox->dma, port, MLX4_SET_PORT_IB_OPCODE, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); mlx4_free_cmd_mailbox(dev->dev, mailbox); return err; } static int mlx4_ib_modify_port(struct ib_device *ibdev, u32 port, int mask, struct ib_port_modify *props) { struct mlx4_ib_dev *mdev = to_mdev(ibdev); u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; struct ib_port_attr attr; u32 cap_mask; int err; /* return OK if this is RoCE. CM calls ib_modify_port() regardless * of whether port link layer is ETH or IB. For ETH ports, qkey * violations and port capabilities are not meaningful. */ if (is_eth) return 0; mutex_lock(&mdev->cap_mask_mutex); err = ib_query_port(ibdev, port, &attr); if (err) goto out; cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & ~props->clr_port_cap_mask; err = mlx4_ib_SET_PORT(mdev, port, !!(mask & IB_PORT_RESET_QKEY_CNTR), cap_mask); out: mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); return err; } static int mlx4_ib_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) { struct ib_device *ibdev = uctx->device; struct mlx4_ib_dev *dev = to_mdev(ibdev); struct mlx4_ib_ucontext *context = to_mucontext(uctx); struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3; struct mlx4_ib_alloc_ucontext_resp resp; int err; if (!dev->ib_active) return -EAGAIN; if (ibdev->ops.uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) { resp_v3.qp_tab_size = dev->dev->caps.num_qps; resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size; resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; } else { resp.dev_caps = dev->dev->caps.userspace_caps; resp.qp_tab_size = dev->dev->caps.num_qps; resp.bf_reg_size = dev->dev->caps.bf_reg_size; resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; resp.cqe_size = dev->dev->caps.cqe_size; } err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); if (err) return err; INIT_LIST_HEAD(&context->db_page_list); mutex_init(&context->db_page_mutex); INIT_LIST_HEAD(&context->wqn_ranges_list); mutex_init(&context->wqn_ranges_mutex); if (ibdev->ops.uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3)); else err = ib_copy_to_udata(udata, &resp, sizeof(resp)); if (err) { mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); return -EFAULT; } return err; } static void mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) { struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); } static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext) { } static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) { struct mlx4_ib_dev *dev = to_mdev(context->device); switch (vma->vm_pgoff) { case 0: return rdma_user_mmap_io(context, vma, to_mucontext(context)->uar.pfn, PAGE_SIZE, pgprot_noncached(vma->vm_page_prot), NULL); case 1: if (dev->dev->caps.bf_reg_size == 0) return -EINVAL; return rdma_user_mmap_io( context, vma, to_mucontext(context)->uar.pfn + dev->dev->caps.num_uars, PAGE_SIZE, pgprot_writecombine(vma->vm_page_prot), NULL); case 3: { struct mlx4_clock_params params; int ret; ret = mlx4_get_internal_clock_params(dev->dev, ¶ms); if (ret) return ret; return rdma_user_mmap_io( context, vma, (pci_resource_start(dev->dev->persist->pdev, params.bar) + params.offset) >> PAGE_SHIFT, PAGE_SIZE, pgprot_noncached(vma->vm_page_prot), NULL); } default: return -EINVAL; } } static int mlx4_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) { struct mlx4_ib_pd *pd = to_mpd(ibpd); struct ib_device *ibdev = ibpd->device; int err; err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); if (err) return err; if (udata && ib_copy_to_udata(udata, &pd->pdn, sizeof(__u32))) { mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); return -EFAULT; } return 0; } static int mlx4_ib_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata) { mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); return 0; } static int mlx4_ib_alloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata) { struct mlx4_ib_dev *dev = to_mdev(ibxrcd->device); struct mlx4_ib_xrcd *xrcd = to_mxrcd(ibxrcd); struct ib_cq_init_attr cq_attr = {}; int err; if (!(dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) return -EOPNOTSUPP; err = mlx4_xrcd_alloc(dev->dev, &xrcd->xrcdn); if (err) return err; xrcd->pd = ib_alloc_pd(ibxrcd->device, 0); if (IS_ERR(xrcd->pd)) { err = PTR_ERR(xrcd->pd); goto err2; } cq_attr.cqe = 1; xrcd->cq = ib_create_cq(ibxrcd->device, NULL, NULL, xrcd, &cq_attr); if (IS_ERR(xrcd->cq)) { err = PTR_ERR(xrcd->cq); goto err3; } return 0; err3: ib_dealloc_pd(xrcd->pd); err2: mlx4_xrcd_free(dev->dev, xrcd->xrcdn); return err; } static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata) { ib_destroy_cq(to_mxrcd(xrcd)->cq); ib_dealloc_pd(to_mxrcd(xrcd)->pd); mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); return 0; } static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) { struct mlx4_ib_qp *mqp = to_mqp(ibqp); struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); struct mlx4_ib_gid_entry *ge; ge = kzalloc(sizeof *ge, GFP_KERNEL); if (!ge) return -ENOMEM; ge->gid = *gid; if (mlx4_ib_add_mc(mdev, mqp, gid)) { ge->port = mqp->port; ge->added = 1; } mutex_lock(&mqp->mutex); list_add_tail(&ge->list, &mqp->gid_list); mutex_unlock(&mqp->mutex); return 0; } static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev, struct mlx4_ib_counters *ctr_table) { struct counter_index *counter, *tmp_count; mutex_lock(&ctr_table->mutex); list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list, list) { if (counter->allocated) mlx4_counter_free(ibdev->dev, counter->index); list_del(&counter->list); kfree(counter); } mutex_unlock(&ctr_table->mutex); } int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, union ib_gid *gid) { struct net_device *ndev; int ret = 0; if (!mqp->port) return 0; spin_lock_bh(&mdev->iboe.lock); ndev = mdev->iboe.netdevs[mqp->port - 1]; dev_hold(ndev); spin_unlock_bh(&mdev->iboe.lock); if (ndev) { ret = 1; dev_put(ndev); } return ret; } struct mlx4_ib_steering { struct list_head list; struct mlx4_flow_reg_id reg_id; union ib_gid gid; }; #define LAST_ETH_FIELD vlan_tag #define LAST_IB_FIELD sl #define LAST_IPV4_FIELD dst_ip #define LAST_TCP_UDP_FIELD src_port /* Field is the last supported field */ #define FIELDS_NOT_SUPPORTED(filter, field)\ memchr_inv((void *)&filter.field +\ sizeof(filter.field), 0,\ sizeof(filter) -\ offsetof(typeof(filter), field) -\ sizeof(filter.field)) static int parse_flow_attr(struct mlx4_dev *dev, u32 qp_num, union ib_flow_spec *ib_spec, struct _rule_hw *mlx4_spec) { enum mlx4_net_trans_rule_id type; switch (ib_spec->type) { case IB_FLOW_SPEC_ETH: if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD)) return -ENOTSUPP; type = MLX4_NET_TRANS_RULE_ID_ETH; memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac, ETH_ALEN); memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac, ETH_ALEN); mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag; mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag; break; case IB_FLOW_SPEC_IB: if (FIELDS_NOT_SUPPORTED(ib_spec->ib.mask, LAST_IB_FIELD)) return -ENOTSUPP; type = MLX4_NET_TRANS_RULE_ID_IB; mlx4_spec->ib.l3_qpn = cpu_to_be32(qp_num); mlx4_spec->ib.qpn_mask = cpu_to_be32(MLX4_IB_FLOW_QPN_MASK); break; case IB_FLOW_SPEC_IPV4: if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD)) return -ENOTSUPP; type = MLX4_NET_TRANS_RULE_ID_IPV4; mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip; mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip; mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip; mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip; break; case IB_FLOW_SPEC_TCP: case IB_FLOW_SPEC_UDP: if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, LAST_TCP_UDP_FIELD)) return -ENOTSUPP; type = ib_spec->type == IB_FLOW_SPEC_TCP ? MLX4_NET_TRANS_RULE_ID_TCP : MLX4_NET_TRANS_RULE_ID_UDP; mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port; mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port; mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port; mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port; break; default: return -EINVAL; } if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 || mlx4_hw_rule_sz(dev, type) < 0) return -EINVAL; mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type)); mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2; return mlx4_hw_rule_sz(dev, type); } struct default_rules { __u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS]; __u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS]; __u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS]; __u8 link_layer; }; static const struct default_rules default_table[] = { { .mandatory_fields = {IB_FLOW_SPEC_IPV4}, .mandatory_not_fields = {IB_FLOW_SPEC_ETH}, .rules_create_list = {IB_FLOW_SPEC_IB}, .link_layer = IB_LINK_LAYER_INFINIBAND } }; static int __mlx4_ib_default_rules_match(struct ib_qp *qp, struct ib_flow_attr *flow_attr) { int i, j, k; void *ib_flow; const struct default_rules *pdefault_rules = default_table; u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port); for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) { __u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS]; memset(&field_types, 0, sizeof(field_types)); if (link_layer != pdefault_rules->link_layer) continue; ib_flow = flow_attr + 1; /* we assume the specs are sorted */ for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS && j < flow_attr->num_of_specs; k++) { union ib_flow_spec *current_flow = (union ib_flow_spec *)ib_flow; /* same layer but different type */ if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) == (pdefault_rules->mandatory_fields[k] & IB_FLOW_SPEC_LAYER_MASK)) && (current_flow->type != pdefault_rules->mandatory_fields[k])) goto out; /* same layer, try match next one */ if (current_flow->type == pdefault_rules->mandatory_fields[k]) { j++; ib_flow += ((union ib_flow_spec *)ib_flow)->size; } } ib_flow = flow_attr + 1; for (j = 0; j < flow_attr->num_of_specs; j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size) for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++) /* same layer and same type */ if (((union ib_flow_spec *)ib_flow)->type == pdefault_rules->mandatory_not_fields[k]) goto out; return i; } out: return -1; } static int __mlx4_ib_create_default_rules( struct mlx4_ib_dev *mdev, struct ib_qp *qp, const struct default_rules *pdefault_rules, struct _rule_hw *mlx4_spec) { int size = 0; int i; for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) { union ib_flow_spec ib_spec = {}; int ret; switch (pdefault_rules->rules_create_list[i]) { case 0: /* no rule */ continue; case IB_FLOW_SPEC_IB: ib_spec.type = IB_FLOW_SPEC_IB; ib_spec.size = sizeof(struct ib_flow_spec_ib); break; default: /* invalid rule */ return -EINVAL; } /* We must put empty rule, qpn is being ignored */ ret = parse_flow_attr(mdev->dev, 0, &ib_spec, mlx4_spec); if (ret < 0) { pr_info("invalid parsing\n"); return -EINVAL; } mlx4_spec = (void *)mlx4_spec + ret; size += ret; } return size; } static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr, int domain, enum mlx4_net_trans_promisc_mode flow_type, u64 *reg_id) { int ret, i; int size = 0; void *ib_flow; struct mlx4_ib_dev *mdev = to_mdev(qp->device); struct mlx4_cmd_mailbox *mailbox; struct mlx4_net_trans_rule_hw_ctrl *ctrl; int default_flow; if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) { pr_err("Invalid priority value %d\n", flow_attr->priority); return -EINVAL; } if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0) return -EINVAL; mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); ctrl = mailbox->buf; ctrl->prio = cpu_to_be16(domain | flow_attr->priority); ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type); ctrl->port = flow_attr->port; ctrl->qpn = cpu_to_be32(qp->qp_num); ib_flow = flow_attr + 1; size += sizeof(struct mlx4_net_trans_rule_hw_ctrl); /* Add default flows */ default_flow = __mlx4_ib_default_rules_match(qp, flow_attr); if (default_flow >= 0) { ret = __mlx4_ib_create_default_rules( mdev, qp, default_table + default_flow, mailbox->buf + size); if (ret < 0) { mlx4_free_cmd_mailbox(mdev->dev, mailbox); return -EINVAL; } size += ret; } for (i = 0; i < flow_attr->num_of_specs; i++) { ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow, mailbox->buf + size); if (ret < 0) { mlx4_free_cmd_mailbox(mdev->dev, mailbox); return -EINVAL; } ib_flow += ((union ib_flow_spec *) ib_flow)->size; size += ret; } if (mlx4_is_master(mdev->dev) && flow_type == MLX4_FS_REGULAR && flow_attr->num_of_specs == 1) { struct _rule_hw *rule_header = (struct _rule_hw *)(ctrl + 1); enum ib_flow_spec_type header_spec = ((union ib_flow_spec *)(flow_attr + 1))->type; if (header_spec == IB_FLOW_SPEC_ETH) mlx4_handle_eth_header_mcast_prio(ctrl, rule_header); } ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0, MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); if (ret == -ENOMEM) pr_err("mcg table is full. Fail to register network rule.\n"); else if (ret == -ENXIO) pr_err("Device managed flow steering is disabled. Fail to register network rule.\n"); else if (ret) pr_err("Invalid argument. Fail to register network rule.\n"); mlx4_free_cmd_mailbox(mdev->dev, mailbox); return ret; } static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id) { int err; err = mlx4_cmd(dev, reg_id, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); if (err) pr_err("Fail to detach network rule. registration id = 0x%llx\n", reg_id); return err; } static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr, u64 *reg_id) { void *ib_flow; union ib_flow_spec *ib_spec; struct mlx4_dev *dev = to_mdev(qp->device)->dev; int err = 0; if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) return 0; /* do nothing */ ib_flow = flow_attr + 1; ib_spec = (union ib_flow_spec *)ib_flow; if (ib_spec->type != IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1) return 0; /* do nothing */ err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac, flow_attr->port, qp->qp_num, MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff), reg_id); return err; } static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev, struct ib_flow_attr *flow_attr, enum mlx4_net_trans_promisc_mode *type) { int err = 0; if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER) || (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) || (flow_attr->num_of_specs > 1) || (flow_attr->priority != 0)) { return -EOPNOTSUPP; } if (flow_attr->num_of_specs == 0) { type[0] = MLX4_FS_MC_SNIFFER; type[1] = MLX4_FS_UC_SNIFFER; } else { union ib_flow_spec *ib_spec; ib_spec = (union ib_flow_spec *)(flow_attr + 1); if (ib_spec->type != IB_FLOW_SPEC_ETH) return -EINVAL; /* if all is zero than MC and UC */ if (is_zero_ether_addr(ib_spec->eth.mask.dst_mac)) { type[0] = MLX4_FS_MC_SNIFFER; type[1] = MLX4_FS_UC_SNIFFER; } else { u8 mac[ETH_ALEN] = {ib_spec->eth.mask.dst_mac[0] ^ 0x01, ib_spec->eth.mask.dst_mac[1], ib_spec->eth.mask.dst_mac[2], ib_spec->eth.mask.dst_mac[3], ib_spec->eth.mask.dst_mac[4], ib_spec->eth.mask.dst_mac[5]}; /* Above xor was only on MC bit, non empty mask is valid * only if this bit is set and rest are zero. */ if (!is_zero_ether_addr(&mac[0])) return -EINVAL; if (is_multicast_ether_addr(ib_spec->eth.val.dst_mac)) type[0] = MLX4_FS_MC_SNIFFER; else type[0] = MLX4_FS_UC_SNIFFER; } } return err; } static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr, struct ib_udata *udata) { int err = 0, i = 0, j = 0; struct mlx4_ib_flow *mflow; enum mlx4_net_trans_promisc_mode type[2]; struct mlx4_dev *dev = (to_mdev(qp->device))->dev; int is_bonded = mlx4_is_bonded(dev); if (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP) return ERR_PTR(-EOPNOTSUPP); if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) && (flow_attr->type != IB_FLOW_ATTR_NORMAL)) return ERR_PTR(-EOPNOTSUPP); if (udata && udata->inlen && !ib_is_udata_cleared(udata, 0, udata->inlen)) return ERR_PTR(-EOPNOTSUPP); memset(type, 0, sizeof(type)); mflow = kzalloc(sizeof(*mflow), GFP_KERNEL); if (!mflow) { err = -ENOMEM; goto err_free; } switch (flow_attr->type) { case IB_FLOW_ATTR_NORMAL: /* If dont trap flag (continue match) is set, under specific * condition traffic be replicated to given qp, * without stealing it */ if (unlikely(flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP)) { err = mlx4_ib_add_dont_trap_rule(dev, flow_attr, type); if (err) goto err_free; } else { type[0] = MLX4_FS_REGULAR; } break; case IB_FLOW_ATTR_ALL_DEFAULT: type[0] = MLX4_FS_ALL_DEFAULT; break; case IB_FLOW_ATTR_MC_DEFAULT: type[0] = MLX4_FS_MC_DEFAULT; break; case IB_FLOW_ATTR_SNIFFER: type[0] = MLX4_FS_MIRROR_RX_PORT; type[1] = MLX4_FS_MIRROR_SX_PORT; break; default: err = -EINVAL; goto err_free; } while (i < ARRAY_SIZE(type) && type[i]) { err = __mlx4_ib_create_flow(qp, flow_attr, MLX4_DOMAIN_UVERBS, type[i], &mflow->reg_id[i].id); if (err) goto err_create_flow; if (is_bonded) { /* Application always sees one port so the mirror rule * must be on port #2 */ flow_attr->port = 2; err = __mlx4_ib_create_flow(qp, flow_attr, MLX4_DOMAIN_UVERBS, type[j], &mflow->reg_id[j].mirror); flow_attr->port = 1; if (err) goto err_create_flow; j++; } i++; } if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) { err = mlx4_ib_tunnel_steer_add(qp, flow_attr, &mflow->reg_id[i].id); if (err) goto err_create_flow; if (is_bonded) { flow_attr->port = 2; err = mlx4_ib_tunnel_steer_add(qp, flow_attr, &mflow->reg_id[j].mirror); flow_attr->port = 1; if (err) goto err_create_flow; j++; } /* function to create mirror rule */ i++; } return &mflow->ibflow; err_create_flow: while (i) { (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev, mflow->reg_id[i].id); i--; } while (j) { (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev, mflow->reg_id[j].mirror); j--; } err_free: kfree(mflow); return ERR_PTR(err); } static int mlx4_ib_destroy_flow(struct ib_flow *flow_id) { int err, ret = 0; int i = 0; struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device); struct mlx4_ib_flow *mflow = to_mflow(flow_id); while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) { err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id); if (err) ret = err; if (mflow->reg_id[i].mirror) { err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].mirror); if (err) ret = err; } i++; } kfree(mflow); return ret; } static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) { int err; struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); struct mlx4_dev *dev = mdev->dev; struct mlx4_ib_qp *mqp = to_mqp(ibqp); struct mlx4_ib_steering *ib_steering = NULL; enum mlx4_protocol prot = MLX4_PROT_IB_IPV6; struct mlx4_flow_reg_id reg_id; if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL); if (!ib_steering) return -ENOMEM; } err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), prot, ®_id.id); if (err) { pr_err("multicast attach op failed, err %d\n", err); goto err_malloc; } reg_id.mirror = 0; if (mlx4_is_bonded(dev)) { err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, (mqp->port == 1) ? 2 : 1, !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), prot, ®_id.mirror); if (err) goto err_add; } err = add_gid_entry(ibqp, gid); if (err) goto err_add; if (ib_steering) { memcpy(ib_steering->gid.raw, gid->raw, 16); ib_steering->reg_id = reg_id; mutex_lock(&mqp->mutex); list_add(&ib_steering->list, &mqp->steering_rules); mutex_unlock(&mqp->mutex); } return 0; err_add: mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, prot, reg_id.id); if (reg_id.mirror) mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, prot, reg_id.mirror); err_malloc: kfree(ib_steering); return err; } static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw) { struct mlx4_ib_gid_entry *ge; struct mlx4_ib_gid_entry *tmp; struct mlx4_ib_gid_entry *ret = NULL; list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) { if (!memcmp(raw, ge->gid.raw, 16)) { ret = ge; break; } } return ret; } static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) { int err; struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); struct mlx4_dev *dev = mdev->dev; struct mlx4_ib_qp *mqp = to_mqp(ibqp); struct net_device *ndev; struct mlx4_ib_gid_entry *ge; struct mlx4_flow_reg_id reg_id = {0, 0}; enum mlx4_protocol prot = MLX4_PROT_IB_IPV6; if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { struct mlx4_ib_steering *ib_steering; mutex_lock(&mqp->mutex); list_for_each_entry(ib_steering, &mqp->steering_rules, list) { if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) { list_del(&ib_steering->list); break; } } mutex_unlock(&mqp->mutex); if (&ib_steering->list == &mqp->steering_rules) { pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n"); return -EINVAL; } reg_id = ib_steering->reg_id; kfree(ib_steering); } err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, prot, reg_id.id); if (err) return err; if (mlx4_is_bonded(dev)) { err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, prot, reg_id.mirror); if (err) return err; } mutex_lock(&mqp->mutex); ge = find_gid_entry(mqp, gid->raw); if (ge) { spin_lock_bh(&mdev->iboe.lock); ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; dev_hold(ndev); spin_unlock_bh(&mdev->iboe.lock); dev_put(ndev); list_del(&ge->list); kfree(ge); } else pr_warn("could not find mgid entry\n"); mutex_unlock(&mqp->mutex); return 0; } static int init_node_data(struct mlx4_ib_dev *dev) { struct ib_smp *in_mad; struct ib_smp *out_mad; int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; int err = -ENOMEM; in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); if (!in_mad || !out_mad) goto out; ib_init_query_mad(in_mad); in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; if (mlx4_is_master(dev->dev)) mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); if (err) goto out; memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); if (err) goto out; dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); out: kfree(in_mad); kfree(out_mad); return err; } static ssize_t hca_type_show(struct device *device, struct device_attribute *attr, char *buf) { struct mlx4_ib_dev *dev = rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev); return sysfs_emit(buf, "MT%d\n", dev->dev->persist->pdev->device); } static DEVICE_ATTR_RO(hca_type); static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, char *buf) { struct mlx4_ib_dev *dev = rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev); return sysfs_emit(buf, "%x\n", dev->dev->rev_id); } static DEVICE_ATTR_RO(hw_rev); static ssize_t board_id_show(struct device *device, struct device_attribute *attr, char *buf) { struct mlx4_ib_dev *dev = rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev); return sysfs_emit(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id); } static DEVICE_ATTR_RO(board_id); static struct attribute *mlx4_class_attributes[] = { &dev_attr_hw_rev.attr, &dev_attr_hca_type.attr, &dev_attr_board_id.attr, NULL }; static const struct attribute_group mlx4_attr_group = { .attrs = mlx4_class_attributes, }; struct diag_counter { const char *name; u32 offset; }; #define DIAG_COUNTER(_name, _offset) \ { .name = #_name, .offset = _offset } static const struct diag_counter diag_basic[] = { DIAG_COUNTER(rq_num_lle, 0x00), DIAG_COUNTER(sq_num_lle, 0x04), DIAG_COUNTER(rq_num_lqpoe, 0x08), DIAG_COUNTER(sq_num_lqpoe, 0x0C), DIAG_COUNTER(rq_num_lpe, 0x18), DIAG_COUNTER(sq_num_lpe, 0x1C), DIAG_COUNTER(rq_num_wrfe, 0x20), DIAG_COUNTER(sq_num_wrfe, 0x24), DIAG_COUNTER(sq_num_mwbe, 0x2C), DIAG_COUNTER(sq_num_bre, 0x34), DIAG_COUNTER(sq_num_rire, 0x44), DIAG_COUNTER(rq_num_rire, 0x48), DIAG_COUNTER(sq_num_rae, 0x4C), DIAG_COUNTER(rq_num_rae, 0x50), DIAG_COUNTER(sq_num_roe, 0x54), DIAG_COUNTER(sq_num_tree, 0x5C), DIAG_COUNTER(sq_num_rree, 0x64), DIAG_COUNTER(rq_num_rnr, 0x68), DIAG_COUNTER(sq_num_rnr, 0x6C), DIAG_COUNTER(rq_num_oos, 0x100), DIAG_COUNTER(sq_num_oos, 0x104), }; static const struct diag_counter diag_ext[] = { DIAG_COUNTER(rq_num_dup, 0x130), DIAG_COUNTER(sq_num_to, 0x134), }; static const struct diag_counter diag_device_only[] = { DIAG_COUNTER(num_cqovf, 0x1A0), DIAG_COUNTER(rq_num_udsdprd, 0x118), }; static struct rdma_hw_stats * mlx4_ib_alloc_hw_device_stats(struct ib_device *ibdev) { struct mlx4_ib_dev *dev = to_mdev(ibdev); struct mlx4_ib_diag_counters *diag = dev->diag_counters; if (!diag[0].descs) return NULL; return rdma_alloc_hw_stats_struct(diag[0].descs, diag[0].num_counters, RDMA_HW_STATS_DEFAULT_LIFESPAN); } static struct rdma_hw_stats * mlx4_ib_alloc_hw_port_stats(struct ib_device *ibdev, u32 port_num) { struct mlx4_ib_dev *dev = to_mdev(ibdev); struct mlx4_ib_diag_counters *diag = dev->diag_counters; if (!diag[1].descs) return NULL; return rdma_alloc_hw_stats_struct(diag[1].descs, diag[1].num_counters, RDMA_HW_STATS_DEFAULT_LIFESPAN); } static int mlx4_ib_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats, u32 port, int index) { struct mlx4_ib_dev *dev = to_mdev(ibdev); struct mlx4_ib_diag_counters *diag = dev->diag_counters; u32 hw_value[ARRAY_SIZE(diag_device_only) + ARRAY_SIZE(diag_ext) + ARRAY_SIZE(diag_basic)] = {}; int ret; int i; ret = mlx4_query_diag_counters(dev->dev, MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS, diag[!!port].offset, hw_value, diag[!!port].num_counters, port); if (ret) return ret; for (i = 0; i < diag[!!port].num_counters; i++) stats->value[i] = hw_value[i]; return diag[!!port].num_counters; } static int __mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev, struct rdma_stat_desc **pdescs, u32 **offset, u32 *num, bool port) { u32 num_counters; num_counters = ARRAY_SIZE(diag_basic); if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) num_counters += ARRAY_SIZE(diag_ext); if (!port) num_counters += ARRAY_SIZE(diag_device_only); *pdescs = kcalloc(num_counters, sizeof(struct rdma_stat_desc), GFP_KERNEL); if (!*pdescs) return -ENOMEM; *offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL); if (!*offset) goto err; *num = num_counters; return 0; err: kfree(*pdescs); return -ENOMEM; } static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev, struct rdma_stat_desc *descs, u32 *offset, bool port) { int i; int j; for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) { descs[i].name = diag_basic[i].name; offset[i] = diag_basic[i].offset; } if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) { for (i = 0; i < ARRAY_SIZE(diag_ext); i++, j++) { descs[j].name = diag_ext[i].name; offset[j] = diag_ext[i].offset; } } if (!port) { for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) { descs[j].name = diag_device_only[i].name; offset[j] = diag_device_only[i].offset; } } } static const struct ib_device_ops mlx4_ib_hw_stats_ops = { .alloc_hw_device_stats = mlx4_ib_alloc_hw_device_stats, .alloc_hw_port_stats = mlx4_ib_alloc_hw_port_stats, .get_hw_stats = mlx4_ib_get_hw_stats, }; static const struct ib_device_ops mlx4_ib_hw_stats_ops1 = { .alloc_hw_device_stats = mlx4_ib_alloc_hw_device_stats, .get_hw_stats = mlx4_ib_get_hw_stats, }; static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev) { struct mlx4_ib_diag_counters *diag = ibdev->diag_counters; int i; int ret; bool per_port = !!(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT); if (mlx4_is_slave(ibdev->dev)) return 0; for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { /* * i == 1 means we are building port counters, set a different * stats ops without port stats callback. */ if (i && !per_port) { ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_hw_stats_ops1); return 0; } ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].descs, &diag[i].offset, &diag[i].num_counters, i); if (ret) goto err_alloc; mlx4_ib_fill_diag_counters(ibdev, diag[i].descs, diag[i].offset, i); } ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_hw_stats_ops); return 0; err_alloc: if (i) { kfree(diag[i - 1].descs); kfree(diag[i - 1].offset); } return ret; } static void mlx4_ib_diag_cleanup(struct mlx4_ib_dev *ibdev) { int i; for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { kfree(ibdev->diag_counters[i].offset); kfree(ibdev->diag_counters[i].descs); } } #define MLX4_IB_INVALID_MAC ((u64)-1) static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, struct net_device *dev, int port) { u64 new_smac = 0; u64 release_mac = MLX4_IB_INVALID_MAC; struct mlx4_ib_qp *qp; new_smac = ether_addr_to_u64(dev->dev_addr); atomic64_set(&ibdev->iboe.mac[port - 1], new_smac); /* no need for update QP1 and mac registration in non-SRIOV */ if (!mlx4_is_mfunc(ibdev->dev)) return; mutex_lock(&ibdev->qp1_proxy_lock[port - 1]); qp = ibdev->qp1_proxy[port - 1]; if (qp) { int new_smac_index; u64 old_smac; struct mlx4_update_qp_params update_params; mutex_lock(&qp->mutex); old_smac = qp->pri.smac; if (new_smac == old_smac) goto unlock; new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac); if (new_smac_index < 0) goto unlock; update_params.smac_index = new_smac_index; if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC, &update_params)) { release_mac = new_smac; goto unlock; } /* if old port was zero, no mac was yet registered for this QP */ if (qp->pri.smac_port) release_mac = old_smac; qp->pri.smac = new_smac; qp->pri.smac_port = port; qp->pri.smac_index = new_smac_index; } unlock: if (release_mac != MLX4_IB_INVALID_MAC) mlx4_unregister_mac(ibdev->dev, port, release_mac); if (qp) mutex_unlock(&qp->mutex); mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]); } static void mlx4_ib_scan_netdev(struct mlx4_ib_dev *ibdev, struct net_device *dev, unsigned long event) { struct mlx4_ib_iboe *iboe = &ibdev->iboe; ASSERT_RTNL(); if (dev->dev.parent != ibdev->ib_dev.dev.parent) return; spin_lock_bh(&iboe->lock); iboe->netdevs[dev->dev_port] = event != NETDEV_UNREGISTER ? dev : NULL; if (event == NETDEV_UP || event == NETDEV_DOWN) { enum ib_port_state port_state; struct ib_event ibev = { }; if (ib_get_cached_port_state(&ibdev->ib_dev, dev->dev_port + 1, &port_state)) goto iboe_out; if (event == NETDEV_UP && (port_state != IB_PORT_ACTIVE || iboe->last_port_state[dev->dev_port] != IB_PORT_DOWN)) goto iboe_out; if (event == NETDEV_DOWN && (port_state != IB_PORT_DOWN || iboe->last_port_state[dev->dev_port] != IB_PORT_ACTIVE)) goto iboe_out; iboe->last_port_state[dev->dev_port] = port_state; ibev.device = &ibdev->ib_dev; ibev.element.port_num = dev->dev_port + 1; ibev.event = event == NETDEV_UP ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; ib_dispatch_event(&ibev); } iboe_out: spin_unlock_bh(&iboe->lock); if (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER || event == NETDEV_UP || event == NETDEV_CHANGE) mlx4_ib_update_qps(ibdev, dev, dev->dev_port + 1); } static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct mlx4_ib_dev *ibdev; if (!net_eq(dev_net(dev), &init_net)) return NOTIFY_DONE; ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); mlx4_ib_scan_netdev(ibdev, dev, event); return NOTIFY_DONE; } static void init_pkeys(struct mlx4_ib_dev *ibdev) { int port; int slave; int i; if (mlx4_is_master(ibdev->dev)) { for (slave = 0; slave <= ibdev->dev->persist->num_vfs; ++slave) { for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { for (i = 0; i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; ++i) { ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] = /* master has the identity virt2phys pkey mapping */ (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i : ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1; mlx4_sync_pkey_table(ibdev->dev, slave, port, i, ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]); } } } /* initialize pkey cache */ for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { for (i = 0; i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; ++i) ibdev->pkeys.phys_pkey_cache[port-1][i] = (i) ? 0 : 0xFFFF; } } } static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) { int i, j, eq = 0, total_eqs = 0; ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors, sizeof(ibdev->eq_table[0]), GFP_KERNEL); if (!ibdev->eq_table) return; for (i = 1; i <= dev->caps.num_ports; i++) { for (j = 0; j < mlx4_get_eqs_per_port(dev, i); j++, total_eqs++) { if (i > 1 && mlx4_is_eq_shared(dev, total_eqs)) continue; ibdev->eq_table[eq] = total_eqs; if (!mlx4_assign_eq(dev, i, &ibdev->eq_table[eq])) eq++; else ibdev->eq_table[eq] = -1; } } for (i = eq; i < dev->caps.num_comp_vectors; ibdev->eq_table[i++] = -1) ; /* Advertise the new number of EQs to clients */ ibdev->ib_dev.num_comp_vectors = eq; } static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) { int i; int total_eqs = ibdev->ib_dev.num_comp_vectors; /* no eqs were allocated */ if (!ibdev->eq_table) return; /* Reset the advertised EQ number */ ibdev->ib_dev.num_comp_vectors = 0; for (i = 0; i < total_eqs; i++) mlx4_release_eq(dev, ibdev->eq_table[i]); kfree(ibdev->eq_table); ibdev->eq_table = NULL; } static int mlx4_port_immutable(struct ib_device *ibdev, u32 port_num, struct ib_port_immutable *immutable) { struct ib_port_attr attr; struct mlx4_ib_dev *mdev = to_mdev(ibdev); int err; if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) { immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; immutable->max_mad_size = IB_MGMT_MAD_SIZE; } else { if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE; if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE | RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; immutable->core_cap_flags |= RDMA_CORE_PORT_RAW_PACKET; if (immutable->core_cap_flags & (RDMA_CORE_PORT_IBA_ROCE | RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP)) immutable->max_mad_size = IB_MGMT_MAD_SIZE; } err = ib_query_port(ibdev, port_num, &attr); if (err) return err; immutable->pkey_tbl_len = attr.pkey_tbl_len; immutable->gid_tbl_len = attr.gid_tbl_len; return 0; } static void get_fw_ver_str(struct ib_device *device, char *str) { struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev, ib_dev); snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d", (int) (dev->dev->caps.fw_ver >> 32), (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, (int) dev->dev->caps.fw_ver & 0xffff); } static const struct ib_device_ops mlx4_ib_dev_ops = { .owner = THIS_MODULE, .driver_id = RDMA_DRIVER_MLX4, .uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION, .add_gid = mlx4_ib_add_gid, .alloc_mr = mlx4_ib_alloc_mr, .alloc_pd = mlx4_ib_alloc_pd, .alloc_ucontext = mlx4_ib_alloc_ucontext, .attach_mcast = mlx4_ib_mcg_attach, .create_ah = mlx4_ib_create_ah, .create_cq = mlx4_ib_create_cq, .create_qp = mlx4_ib_create_qp, .create_srq = mlx4_ib_create_srq, .dealloc_pd = mlx4_ib_dealloc_pd, .dealloc_ucontext = mlx4_ib_dealloc_ucontext, .del_gid = mlx4_ib_del_gid, .dereg_mr = mlx4_ib_dereg_mr, .destroy_ah = mlx4_ib_destroy_ah, .destroy_cq = mlx4_ib_destroy_cq, .destroy_qp = mlx4_ib_destroy_qp, .destroy_srq = mlx4_ib_destroy_srq, .detach_mcast = mlx4_ib_mcg_detach, .device_group = &mlx4_attr_group, .disassociate_ucontext = mlx4_ib_disassociate_ucontext, .drain_rq = mlx4_ib_drain_rq, .drain_sq = mlx4_ib_drain_sq, .get_dev_fw_str = get_fw_ver_str, .get_dma_mr = mlx4_ib_get_dma_mr, .get_link_layer = mlx4_ib_port_link_layer, .get_netdev = mlx4_ib_get_netdev, .get_port_immutable = mlx4_port_immutable, .map_mr_sg = mlx4_ib_map_mr_sg, .mmap = mlx4_ib_mmap, .modify_cq = mlx4_ib_modify_cq, .modify_device = mlx4_ib_modify_device, .modify_port = mlx4_ib_modify_port, .modify_qp = mlx4_ib_modify_qp, .modify_srq = mlx4_ib_modify_srq, .poll_cq = mlx4_ib_poll_cq, .post_recv = mlx4_ib_post_recv, .post_send = mlx4_ib_post_send, .post_srq_recv = mlx4_ib_post_srq_recv, .process_mad = mlx4_ib_process_mad, .query_ah = mlx4_ib_query_ah, .query_device = mlx4_ib_query_device, .query_gid = mlx4_ib_query_gid, .query_pkey = mlx4_ib_query_pkey, .query_port = mlx4_ib_query_port, .query_qp = mlx4_ib_query_qp, .query_srq = mlx4_ib_query_srq, .reg_user_mr = mlx4_ib_reg_user_mr, .req_notify_cq = mlx4_ib_arm_cq, .rereg_user_mr = mlx4_ib_rereg_user_mr, .resize_cq = mlx4_ib_resize_cq, INIT_RDMA_OBJ_SIZE(ib_ah, mlx4_ib_ah, ibah), INIT_RDMA_OBJ_SIZE(ib_cq, mlx4_ib_cq, ibcq), INIT_RDMA_OBJ_SIZE(ib_pd, mlx4_ib_pd, ibpd), INIT_RDMA_OBJ_SIZE(ib_qp, mlx4_ib_qp, ibqp), INIT_RDMA_OBJ_SIZE(ib_srq, mlx4_ib_srq, ibsrq), INIT_RDMA_OBJ_SIZE(ib_ucontext, mlx4_ib_ucontext, ibucontext), }; static const struct ib_device_ops mlx4_ib_dev_wq_ops = { .create_rwq_ind_table = mlx4_ib_create_rwq_ind_table, .create_wq = mlx4_ib_create_wq, .destroy_rwq_ind_table = mlx4_ib_destroy_rwq_ind_table, .destroy_wq = mlx4_ib_destroy_wq, .modify_wq = mlx4_ib_modify_wq, INIT_RDMA_OBJ_SIZE(ib_rwq_ind_table, mlx4_ib_rwq_ind_table, ib_rwq_ind_tbl), }; static const struct ib_device_ops mlx4_ib_dev_mw_ops = { .alloc_mw = mlx4_ib_alloc_mw, .dealloc_mw = mlx4_ib_dealloc_mw, INIT_RDMA_OBJ_SIZE(ib_mw, mlx4_ib_mw, ibmw), }; static const struct ib_device_ops mlx4_ib_dev_xrc_ops = { .alloc_xrcd = mlx4_ib_alloc_xrcd, .dealloc_xrcd = mlx4_ib_dealloc_xrcd, INIT_RDMA_OBJ_SIZE(ib_xrcd, mlx4_ib_xrcd, ibxrcd), }; static const struct ib_device_ops mlx4_ib_dev_fs_ops = { .create_flow = mlx4_ib_create_flow, .destroy_flow = mlx4_ib_destroy_flow, }; static int mlx4_ib_probe(struct auxiliary_device *adev, const struct auxiliary_device_id *id) { struct mlx4_adev *madev = container_of(adev, struct mlx4_adev, adev); struct mlx4_dev *dev = madev->mdev; struct mlx4_ib_dev *ibdev; int num_ports = 0; int i, j; int err; struct mlx4_ib_iboe *iboe; int ib_num_ports = 0; int num_req_counters; int allocated; u32 counter_index; struct counter_index *new_counter_index; pr_info_once("%s", mlx4_ib_version); num_ports = 0; mlx4_foreach_ib_transport_port(i, dev) num_ports++; /* No point in registering a device with no ports... */ if (num_ports == 0) return -ENODEV; ibdev = ib_alloc_device(mlx4_ib_dev, ib_dev); if (!ibdev) { dev_err(&dev->persist->pdev->dev, "Device struct alloc failed\n"); return -ENOMEM; } iboe = &ibdev->iboe; err = mlx4_pd_alloc(dev, &ibdev->priv_pdn); if (err) goto err_dealloc; err = mlx4_uar_alloc(dev, &ibdev->priv_uar); if (err) goto err_pd; ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); if (!ibdev->uar_map) { err = -ENOMEM; goto err_uar; } MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); ibdev->dev = dev; ibdev->bond_next_port = 0; ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; ibdev->num_ports = num_ports; ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports; ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; ibdev->ib_dev.dev.parent = &dev->persist->pdev->dev; ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_ops); if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) && ((mlx4_ib_port_link_layer(&ibdev->ib_dev, 1) == IB_LINK_LAYER_ETHERNET) || (mlx4_ib_port_link_layer(&ibdev->ib_dev, 2) == IB_LINK_LAYER_ETHERNET))) ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_wq_ops); if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_mw_ops); if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_xrc_ops); } if (check_flow_steering_support(dev)) { ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED; ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_fs_ops); } if (!dev->caps.userspace_caps) ibdev->ib_dev.ops.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION; mlx4_ib_alloc_eqs(dev, ibdev); spin_lock_init(&iboe->lock); err = init_node_data(ibdev); if (err) goto err_map; mlx4_init_sl2vl_tbl(ibdev); for (i = 0; i < ibdev->num_ports; ++i) { mutex_init(&ibdev->counters_table[i].mutex); INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list); iboe->last_port_state[i] = IB_PORT_DOWN; } num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports; for (i = 0; i < num_req_counters; ++i) { mutex_init(&ibdev->qp1_proxy_lock[i]); allocated = 0; if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) == IB_LINK_LAYER_ETHERNET) { err = mlx4_counter_alloc(ibdev->dev, &counter_index, MLX4_RES_USAGE_DRIVER); /* if failed to allocate a new counter, use default */ if (err) counter_index = mlx4_get_default_counter_index(dev, i + 1); else allocated = 1; } else { /* IB_LINK_LAYER_INFINIBAND use the default counter */ counter_index = mlx4_get_default_counter_index(dev, i + 1); } new_counter_index = kmalloc(sizeof(*new_counter_index), GFP_KERNEL); if (!new_counter_index) { err = -ENOMEM; if (allocated) mlx4_counter_free(ibdev->dev, counter_index); goto err_counter; } new_counter_index->index = counter_index; new_counter_index->allocated = allocated; list_add_tail(&new_counter_index->list, &ibdev->counters_table[i].counters_list); ibdev->counters_table[i].default_counter = counter_index; pr_info("counter index %d for port %d allocated %d\n", counter_index, i + 1, allocated); } if (mlx4_is_bonded(dev)) for (i = 1; i < ibdev->num_ports ; ++i) { new_counter_index = kmalloc(sizeof(struct counter_index), GFP_KERNEL); if (!new_counter_index) { err = -ENOMEM; goto err_counter; } new_counter_index->index = counter_index; new_counter_index->allocated = 0; list_add_tail(&new_counter_index->list, &ibdev->counters_table[i].counters_list); ibdev->counters_table[i].default_counter = counter_index; } mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) ib_num_ports++; spin_lock_init(&ibdev->sm_lock); mutex_init(&ibdev->cap_mask_mutex); INIT_LIST_HEAD(&ibdev->qp_list); spin_lock_init(&ibdev->reset_flow_resource_lock); if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED && ib_num_ports) { ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS; err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count, MLX4_IB_UC_STEER_QPN_ALIGN, &ibdev->steer_qpn_base, 0, MLX4_RES_USAGE_DRIVER); if (err) goto err_counter; ibdev->ib_uc_qpns_bitmap = bitmap_alloc(ibdev->steer_qpn_count, GFP_KERNEL); if (!ibdev->ib_uc_qpns_bitmap) { err = -ENOMEM; goto err_steer_qp_release; } if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) { bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count); err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE( dev, ibdev->steer_qpn_base, ibdev->steer_qpn_base + ibdev->steer_qpn_count - 1); if (err) goto err_steer_free_bitmap; } else { bitmap_fill(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count); } } for (j = 1; j <= ibdev->dev->caps.num_ports; j++) atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]); err = mlx4_ib_alloc_diag_counters(ibdev); if (err) goto err_steer_free_bitmap; err = ib_register_device(&ibdev->ib_dev, "mlx4_%d", &dev->persist->pdev->dev); if (err) goto err_diag_counters; err = mlx4_ib_mad_init(ibdev); if (err) goto err_reg; err = mlx4_ib_init_sriov(ibdev); if (err) goto err_mad; if (!iboe->nb.notifier_call) { iboe->nb.notifier_call = mlx4_ib_netdev_event; err = register_netdevice_notifier(&iboe->nb); if (err) { iboe->nb.notifier_call = NULL; goto err_notif; } } if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) { err = mlx4_config_roce_v2_port(dev, ROCE_V2_UDP_DPORT); if (err) goto err_notif; } ibdev->ib_active = true; mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) devlink_port_type_ib_set(mlx4_get_devlink_port(dev, i), &ibdev->ib_dev); if (mlx4_is_mfunc(ibdev->dev)) init_pkeys(ibdev); /* create paravirt contexts for any VFs which are active */ if (mlx4_is_master(ibdev->dev)) { for (j = 0; j < MLX4_MFUNC_MAX; j++) { if (j == mlx4_master_func_num(ibdev->dev)) continue; if (mlx4_is_slave_active(ibdev->dev, j)) do_slave_init(ibdev, j, 1); } } /* register mlx4 core notifier */ ibdev->mlx_nb.notifier_call = mlx4_ib_event; err = mlx4_register_event_notifier(dev, &ibdev->mlx_nb); WARN(err, "failed to register mlx4 event notifier (%d)", err); auxiliary_set_drvdata(adev, ibdev); return 0; err_notif: if (ibdev->iboe.nb.notifier_call) { if (unregister_netdevice_notifier(&ibdev->iboe.nb)) pr_warn("failure unregistering notifier\n"); ibdev->iboe.nb.notifier_call = NULL; } flush_workqueue(wq); mlx4_ib_close_sriov(ibdev); err_mad: mlx4_ib_mad_cleanup(ibdev); err_reg: ib_unregister_device(&ibdev->ib_dev); err_diag_counters: mlx4_ib_diag_cleanup(ibdev); err_steer_free_bitmap: bitmap_free(ibdev->ib_uc_qpns_bitmap); err_steer_qp_release: mlx4_qp_release_range(dev, ibdev->steer_qpn_base, ibdev->steer_qpn_count); err_counter: for (i = 0; i < ibdev->num_ports; ++i) mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]); err_map: mlx4_ib_free_eqs(dev, ibdev); iounmap(ibdev->uar_map); err_uar: mlx4_uar_free(dev, &ibdev->priv_uar); err_pd: mlx4_pd_free(dev, ibdev->priv_pdn); err_dealloc: ib_dealloc_device(&ibdev->ib_dev); return err; } int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn) { int offset; WARN_ON(!dev->ib_uc_qpns_bitmap); offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap, dev->steer_qpn_count, get_count_order(count)); if (offset < 0) return offset; *qpn = dev->steer_qpn_base + offset; return 0; } void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count) { if (!qpn || dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED) return; if (WARN(qpn < dev->steer_qpn_base, "qpn = %u, steer_qpn_base = %u\n", qpn, dev->steer_qpn_base)) /* not supposed to be here */ return; bitmap_release_region(dev->ib_uc_qpns_bitmap, qpn - dev->steer_qpn_base, get_count_order(count)); } int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, int is_attach) { int err; size_t flow_size; struct ib_flow_attr *flow; struct ib_flow_spec_ib *ib_spec; if (is_attach) { flow_size = sizeof(struct ib_flow_attr) + sizeof(struct ib_flow_spec_ib); flow = kzalloc(flow_size, GFP_KERNEL); if (!flow) return -ENOMEM; flow->port = mqp->port; flow->num_of_specs = 1; flow->size = flow_size; ib_spec = (struct ib_flow_spec_ib *)(flow + 1); ib_spec->type = IB_FLOW_SPEC_IB; ib_spec->size = sizeof(struct ib_flow_spec_ib); /* Add an empty rule for IB L2 */ memset(&ib_spec->mask, 0, sizeof(ib_spec->mask)); err = __mlx4_ib_create_flow(&mqp->ibqp, flow, MLX4_DOMAIN_NIC, MLX4_FS_REGULAR, &mqp->reg_id); kfree(flow); return err; } return __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id); } static void mlx4_ib_remove(struct auxiliary_device *adev) { struct mlx4_adev *madev = container_of(adev, struct mlx4_adev, adev); struct mlx4_dev *dev = madev->mdev; struct mlx4_ib_dev *ibdev = auxiliary_get_drvdata(adev); int p; int i; mlx4_unregister_event_notifier(dev, &ibdev->mlx_nb); mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) devlink_port_type_clear(mlx4_get_devlink_port(dev, i)); ibdev->ib_active = false; flush_workqueue(wq); if (ibdev->iboe.nb.notifier_call) { if (unregister_netdevice_notifier(&ibdev->iboe.nb)) pr_warn("failure unregistering notifier\n"); ibdev->iboe.nb.notifier_call = NULL; } mlx4_ib_close_sriov(ibdev); mlx4_ib_mad_cleanup(ibdev); ib_unregister_device(&ibdev->ib_dev); mlx4_ib_diag_cleanup(ibdev); mlx4_qp_release_range(dev, ibdev->steer_qpn_base, ibdev->steer_qpn_count); bitmap_free(ibdev->ib_uc_qpns_bitmap); iounmap(ibdev->uar_map); for (p = 0; p < ibdev->num_ports; ++p) mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[p]); mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) mlx4_CLOSE_PORT(dev, p); mlx4_ib_free_eqs(dev, ibdev); mlx4_uar_free(dev, &ibdev->priv_uar); mlx4_pd_free(dev, ibdev->priv_pdn); ib_dealloc_device(&ibdev->ib_dev); } static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init) { struct mlx4_ib_demux_work **dm; struct mlx4_dev *dev = ibdev->dev; int i; unsigned long flags; struct mlx4_active_ports actv_ports; unsigned int ports; unsigned int first_port; if (!mlx4_is_master(dev)) return; actv_ports = mlx4_get_active_ports(dev, slave); ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports); first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports); dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC); if (!dm) return; for (i = 0; i < ports; i++) { dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC); if (!dm[i]) { while (--i >= 0) kfree(dm[i]); goto out; } INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work); dm[i]->port = first_port + i + 1; dm[i]->slave = slave; dm[i]->do_init = do_init; dm[i]->dev = ibdev; } /* initialize or tear down tunnel QPs for the slave */ spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags); if (!ibdev->sriov.is_going_down) { for (i = 0; i < ports; i++) queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work); spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); } else { spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); for (i = 0; i < ports; i++) kfree(dm[i]); } out: kfree(dm); return; } static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev) { struct mlx4_ib_qp *mqp; unsigned long flags_qp; unsigned long flags_cq; struct mlx4_ib_cq *send_mcq, *recv_mcq; struct list_head cq_notify_list; struct mlx4_cq *mcq; unsigned long flags; pr_warn("mlx4_ib_handle_catas_error was started\n"); INIT_LIST_HEAD(&cq_notify_list); /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/ spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags); list_for_each_entry(mqp, &ibdev->qp_list, qps_list) { spin_lock_irqsave(&mqp->sq.lock, flags_qp); if (mqp->sq.tail != mqp->sq.head) { send_mcq = to_mcq(mqp->ibqp.send_cq); spin_lock_irqsave(&send_mcq->lock, flags_cq); if (send_mcq->mcq.comp && mqp->ibqp.send_cq->comp_handler) { if (!send_mcq->mcq.reset_notify_added) { send_mcq->mcq.reset_notify_added = 1; list_add_tail(&send_mcq->mcq.reset_notify, &cq_notify_list); } } spin_unlock_irqrestore(&send_mcq->lock, flags_cq); } spin_unlock_irqrestore(&mqp->sq.lock, flags_qp); /* Now, handle the QP's receive queue */ spin_lock_irqsave(&mqp->rq.lock, flags_qp); /* no handling is needed for SRQ */ if (!mqp->ibqp.srq) { if (mqp->rq.tail != mqp->rq.head) { recv_mcq = to_mcq(mqp->ibqp.recv_cq); spin_lock_irqsave(&recv_mcq->lock, flags_cq); if (recv_mcq->mcq.comp && mqp->ibqp.recv_cq->comp_handler) { if (!recv_mcq->mcq.reset_notify_added) { recv_mcq->mcq.reset_notify_added = 1; list_add_tail(&recv_mcq->mcq.reset_notify, &cq_notify_list); } } spin_unlock_irqrestore(&recv_mcq->lock, flags_cq); } } spin_unlock_irqrestore(&mqp->rq.lock, flags_qp); } list_for_each_entry(mcq, &cq_notify_list, reset_notify) { mcq->comp(mcq); } spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags); pr_warn("mlx4_ib_handle_catas_error ended\n"); } static void handle_bonded_port_state_event(struct work_struct *work) { struct ib_event_work *ew = container_of(work, struct ib_event_work, work); struct mlx4_ib_dev *ibdev = ew->ib_dev; enum ib_port_state bonded_port_state = IB_PORT_NOP; int i; struct ib_event ibev; kfree(ew); spin_lock_bh(&ibdev->iboe.lock); for (i = 0; i < MLX4_MAX_PORTS; ++i) { struct net_device *curr_netdev = ibdev->iboe.netdevs[i]; enum ib_port_state curr_port_state; if (!curr_netdev) continue; curr_port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ? IB_PORT_ACTIVE : IB_PORT_DOWN; bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ? curr_port_state : IB_PORT_ACTIVE; } spin_unlock_bh(&ibdev->iboe.lock); ibev.device = &ibdev->ib_dev; ibev.element.port_num = 1; ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; ib_dispatch_event(&ibev); } void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port) { u64 sl2vl; int err; err = mlx4_ib_query_sl2vl(&mdev->ib_dev, port, &sl2vl); if (err) { pr_err("Unable to get current sl to vl mapping for port %d. Using all zeroes (%d)\n", port, err); sl2vl = 0; } atomic64_set(&mdev->sl2vl[port - 1], sl2vl); } static void ib_sl2vl_update_work(struct work_struct *work) { struct ib_event_work *ew = container_of(work, struct ib_event_work, work); struct mlx4_ib_dev *mdev = ew->ib_dev; int port = ew->port; mlx4_ib_sl2vl_update(mdev, port); kfree(ew); } void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev, int port) { struct ib_event_work *ew; ew = kmalloc(sizeof(*ew), GFP_ATOMIC); if (ew) { INIT_WORK(&ew->work, ib_sl2vl_update_work); ew->port = port; ew->ib_dev = ibdev; queue_work(wq, &ew->work); } } static int mlx4_ib_event(struct notifier_block *this, unsigned long event, void *param) { struct mlx4_ib_dev *ibdev = container_of(this, struct mlx4_ib_dev, mlx_nb); struct mlx4_dev *dev = ibdev->dev; struct ib_event ibev; struct mlx4_eqe *eqe = NULL; struct ib_event_work *ew; int p = 0; if (mlx4_is_bonded(dev) && ((event == MLX4_DEV_EVENT_PORT_UP) || (event == MLX4_DEV_EVENT_PORT_DOWN))) { ew = kmalloc(sizeof(*ew), GFP_ATOMIC); if (!ew) return NOTIFY_DONE; INIT_WORK(&ew->work, handle_bonded_port_state_event); ew->ib_dev = ibdev; queue_work(wq, &ew->work); return NOTIFY_DONE; } switch (event) { case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: break; case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: eqe = (struct mlx4_eqe *)param; break; default: p = *(int *)param; break; } switch (event) { case MLX4_DEV_EVENT_PORT_UP: if (p > ibdev->num_ports) return NOTIFY_DONE; if (!mlx4_is_slave(dev) && rdma_port_get_link_layer(&ibdev->ib_dev, p) == IB_LINK_LAYER_INFINIBAND) { if (mlx4_is_master(dev)) mlx4_ib_invalidate_all_guid_record(ibdev, p); if (ibdev->dev->flags & MLX4_FLAG_SECURE_HOST && !(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT)) mlx4_sched_ib_sl2vl_update_work(ibdev, p); } ibev.event = IB_EVENT_PORT_ACTIVE; break; case MLX4_DEV_EVENT_PORT_DOWN: if (p > ibdev->num_ports) return NOTIFY_DONE; ibev.event = IB_EVENT_PORT_ERR; break; case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: ibdev->ib_active = false; ibev.event = IB_EVENT_DEVICE_FATAL; mlx4_ib_handle_catas_error(ibdev); break; case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: ew = kmalloc(sizeof *ew, GFP_ATOMIC); if (!ew) return NOTIFY_DONE; INIT_WORK(&ew->work, handle_port_mgmt_change_event); memcpy(&ew->ib_eqe, eqe, sizeof *eqe); ew->ib_dev = ibdev; /* need to queue only for port owner, which uses GEN_EQE */ if (mlx4_is_master(dev)) queue_work(wq, &ew->work); else handle_port_mgmt_change_event(&ew->work); return NOTIFY_DONE; case MLX4_DEV_EVENT_SLAVE_INIT: /* here, p is the slave id */ do_slave_init(ibdev, p, 1); if (mlx4_is_master(dev)) { int i; for (i = 1; i <= ibdev->num_ports; i++) { if (rdma_port_get_link_layer(&ibdev->ib_dev, i) == IB_LINK_LAYER_INFINIBAND) mlx4_ib_slave_alias_guid_event(ibdev, p, i, 1); } } return NOTIFY_DONE; case MLX4_DEV_EVENT_SLAVE_SHUTDOWN: if (mlx4_is_master(dev)) { int i; for (i = 1; i <= ibdev->num_ports; i++) { if (rdma_port_get_link_layer(&ibdev->ib_dev, i) == IB_LINK_LAYER_INFINIBAND) mlx4_ib_slave_alias_guid_event(ibdev, p, i, 0); } } /* here, p is the slave id */ do_slave_init(ibdev, p, 0); return NOTIFY_DONE; default: return NOTIFY_DONE; } ibev.device = &ibdev->ib_dev; ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p; ib_dispatch_event(&ibev); return NOTIFY_DONE; } static const struct auxiliary_device_id mlx4_ib_id_table[] = { { .name = MLX4_ADEV_NAME ".ib" }, {}, }; MODULE_DEVICE_TABLE(auxiliary, mlx4_ib_id_table); static struct mlx4_adrv mlx4_ib_adrv = { .adrv = { .name = "ib", .probe = mlx4_ib_probe, .remove = mlx4_ib_remove, .id_table = mlx4_ib_id_table, }, .protocol = MLX4_PROT_IB_IPV6, .flags = MLX4_INTFF_BONDING }; static int __init mlx4_ib_init(void) { int err; wq = alloc_ordered_workqueue("mlx4_ib", WQ_MEM_RECLAIM); if (!wq) return -ENOMEM; err = mlx4_ib_qp_event_init(); if (err) goto clean_qp_event; err = mlx4_ib_cm_init(); if (err) goto clean_wq; err = mlx4_ib_mcg_init(); if (err) goto clean_cm; err = mlx4_register_auxiliary_driver(&mlx4_ib_adrv); if (err) goto clean_mcg; return 0; clean_mcg: mlx4_ib_mcg_destroy(); clean_cm: mlx4_ib_cm_destroy(); clean_wq: mlx4_ib_qp_event_cleanup(); clean_qp_event: destroy_workqueue(wq); return err; } static void __exit mlx4_ib_cleanup(void) { mlx4_unregister_auxiliary_driver(&mlx4_ib_adrv); mlx4_ib_mcg_destroy(); mlx4_ib_cm_destroy(); mlx4_ib_qp_event_cleanup(); destroy_workqueue(wq); } module_init(mlx4_ib_init); module_exit(mlx4_ib_cleanup);
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