| /* |
| * 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, |
| u8 port_num); |
| |
| static struct workqueue_struct *wq; |
| |
| static void init_query_mad(struct ib_smp *mad) |
| { |
| mad->base_version = 1; |
| mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| mad->class_version = 1; |
| mad->method = IB_MGMT_METHOD_GET; |
| } |
| |
| 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, u8 port_num) |
| { |
| struct mlx4_ib_dev *ibdev = to_mdev(device); |
| struct net_device *dev; |
| |
| rcu_read_lock(); |
| dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num); |
| |
| if (dev) { |
| if (mlx4_is_bonded(ibdev->dev)) { |
| struct net_device *upper = NULL; |
| |
| 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; |
| } |
| } |
| } |
| if (dev) |
| dev_hold(dev); |
| |
| rcu_read_unlock(); |
| return dev; |
| } |
| |
| static int mlx4_ib_update_gids_v1(struct gid_entry *gids, |
| struct mlx4_ib_dev *ibdev, |
| u8 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, |
| u8 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, |
| u8 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 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 = NULL; |
| |
| 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; |
| |
| 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) { |
| 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; |
| memcpy(&port_gid_table->gids[free].gid, |
| &attr->gid, sizeof(attr->gid)); |
| port_gid_table->gids[free].gid_type = attr->gid_type; |
| 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; |
| } 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; |
| } |
| |
| 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 = NULL; |
| |
| 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; |
| |
| memset(&port_gid_table->gids[real_index].gid, 0, |
| sizeof(port_gid_table->gids[real_index].gid)); |
| kfree(port_gid_table->gids[real_index].ctx); |
| port_gid_table->gids[real_index].ctx = NULL; |
| 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; |
| u8 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; |
| } |
| |
| #define field_avail(type, fld, sz) (offsetof(type, fld) + \ |
| sizeof(((type *)0)->fld) <= (sz)) |
| |
| 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 = NULL; |
| struct ib_smp *out_mad = NULL; |
| int err; |
| int have_ib_ports; |
| struct mlx4_uverbs_ex_query_device cmd; |
| struct mlx4_uverbs_ex_query_device_resp resp = {.comp_mask = 0}; |
| 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; |
| |
| 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 | |
| IB_DEVICE_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->device_cap_flags |= IB_DEVICE_UD_TSO; |
| if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) |
| props->device_cap_flags |= IB_DEVICE_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->max_map_per_fmr = dev->dev->caps.max_fmr_maps; |
| 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 (!mlx4_is_slave(dev->dev)) |
| err = mlx4_get_internal_clock_params(dev->dev, &clock_params); |
| |
| if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) { |
| resp.response_length += sizeof(resp.hca_core_clock_offset); |
| if (!err && !mlx4_is_slave(dev->dev)) { |
| 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 (field_avail(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 (field_avail(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, u8 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, u8 port, |
| struct ib_port_attr *props, int netw_view) |
| { |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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; |
| |
| 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) { |
| 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 ? 5 : 3; |
| } |
| |
| static int eth_link_query_port(struct ib_device *ibdev, u8 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; |
| 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, u8 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, u8 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, u8 port, int index, |
| union ib_gid *gid, int netw_view) |
| { |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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; |
| |
| 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; |
| } |
| } |
| |
| 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, u8 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, u8 port, u64 *sl2vl_tbl) |
| { |
| union sl2vl_tbl_to_u64 sl2vl64; |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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; |
| |
| 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, u8 port, u16 index, |
| u16 *pkey, int netw_view) |
| { |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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; |
| |
| 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, u8 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, u8 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, u8 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 struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, |
| struct ib_udata *udata) |
| { |
| struct mlx4_ib_dev *dev = to_mdev(ibdev); |
| struct mlx4_ib_ucontext *context; |
| struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3; |
| struct mlx4_ib_alloc_ucontext_resp resp; |
| int err; |
| |
| if (!dev->ib_active) |
| return ERR_PTR(-EAGAIN); |
| |
| if (ibdev->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; |
| } |
| |
| context = kzalloc(sizeof(*context), GFP_KERNEL); |
| if (!context) |
| return ERR_PTR(-ENOMEM); |
| |
| err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); |
| if (err) { |
| kfree(context); |
| return ERR_PTR(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->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); |
| kfree(context); |
| return ERR_PTR(-EFAULT); |
| } |
| |
| return &context->ibucontext; |
| } |
| |
| static int 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); |
| kfree(context); |
| |
| return 0; |
| } |
| |
| static void mlx4_ib_vma_open(struct vm_area_struct *area) |
| { |
| /* vma_open is called when a new VMA is created on top of our VMA. |
| * This is done through either mremap flow or split_vma (usually due |
| * to mlock, madvise, munmap, etc.). We do not support a clone of the |
| * vma, as this VMA is strongly hardware related. Therefore we set the |
| * vm_ops of the newly created/cloned VMA to NULL, to prevent it from |
| * calling us again and trying to do incorrect actions. We assume that |
| * the original vma size is exactly a single page that there will be no |
| * "splitting" operations on. |
| */ |
| area->vm_ops = NULL; |
| } |
| |
| static void mlx4_ib_vma_close(struct vm_area_struct *area) |
| { |
| struct mlx4_ib_vma_private_data *mlx4_ib_vma_priv_data; |
| |
| /* It's guaranteed that all VMAs opened on a FD are closed before the |
| * file itself is closed, therefore no sync is needed with the regular |
| * closing flow. (e.g. mlx4_ib_dealloc_ucontext) However need a sync |
| * with accessing the vma as part of mlx4_ib_disassociate_ucontext. |
| * The close operation is usually called under mm->mmap_sem except when |
| * process is exiting. The exiting case is handled explicitly as part |
| * of mlx4_ib_disassociate_ucontext. |
| */ |
| mlx4_ib_vma_priv_data = (struct mlx4_ib_vma_private_data *) |
| area->vm_private_data; |
| |
| /* set the vma context pointer to null in the mlx4_ib driver's private |
| * data to protect against a race condition in mlx4_ib_dissassociate_ucontext(). |
| */ |
| mlx4_ib_vma_priv_data->vma = NULL; |
| } |
| |
| static const struct vm_operations_struct mlx4_ib_vm_ops = { |
| .open = mlx4_ib_vma_open, |
| .close = mlx4_ib_vma_close |
| }; |
| |
| static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext) |
| { |
| int i; |
| struct vm_area_struct *vma; |
| struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); |
| |
| /* need to protect from a race on closing the vma as part of |
| * mlx4_ib_vma_close(). |
| */ |
| for (i = 0; i < HW_BAR_COUNT; i++) { |
| vma = context->hw_bar_info[i].vma; |
| if (!vma) |
| continue; |
| |
| zap_vma_ptes(context->hw_bar_info[i].vma, |
| context->hw_bar_info[i].vma->vm_start, PAGE_SIZE); |
| |
| context->hw_bar_info[i].vma->vm_flags &= |
| ~(VM_SHARED | VM_MAYSHARE); |
| /* context going to be destroyed, should not access ops any more */ |
| context->hw_bar_info[i].vma->vm_ops = NULL; |
| } |
| } |
| |
| static void mlx4_ib_set_vma_data(struct vm_area_struct *vma, |
| struct mlx4_ib_vma_private_data *vma_private_data) |
| { |
| vma_private_data->vma = vma; |
| vma->vm_private_data = vma_private_data; |
| vma->vm_ops = &mlx4_ib_vm_ops; |
| } |
| |
| static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) |
| { |
| struct mlx4_ib_dev *dev = to_mdev(context->device); |
| struct mlx4_ib_ucontext *mucontext = to_mucontext(context); |
| |
| if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
| return -EINVAL; |
| |
| if (vma->vm_pgoff == 0) { |
| /* We prevent double mmaping on same context */ |
| if (mucontext->hw_bar_info[HW_BAR_DB].vma) |
| return -EINVAL; |
| |
| vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| |
| if (io_remap_pfn_range(vma, vma->vm_start, |
| to_mucontext(context)->uar.pfn, |
| PAGE_SIZE, vma->vm_page_prot)) |
| return -EAGAIN; |
| |
| mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_DB]); |
| |
| } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { |
| /* We prevent double mmaping on same context */ |
| if (mucontext->hw_bar_info[HW_BAR_BF].vma) |
| return -EINVAL; |
| |
| vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
| |
| if (io_remap_pfn_range(vma, vma->vm_start, |
| to_mucontext(context)->uar.pfn + |
| dev->dev->caps.num_uars, |
| PAGE_SIZE, vma->vm_page_prot)) |
| return -EAGAIN; |
| |
| mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_BF]); |
| |
| } else if (vma->vm_pgoff == 3) { |
| struct mlx4_clock_params params; |
| int ret; |
| |
| /* We prevent double mmaping on same context */ |
| if (mucontext->hw_bar_info[HW_BAR_CLOCK].vma) |
| return -EINVAL; |
| |
| ret = mlx4_get_internal_clock_params(dev->dev, ¶ms); |
| |
| if (ret) |
| return ret; |
| |
| vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| if (io_remap_pfn_range(vma, vma->vm_start, |
| (pci_resource_start(dev->dev->persist->pdev, |
| params.bar) + |
| params.offset) |
| >> PAGE_SHIFT, |
| PAGE_SIZE, vma->vm_page_prot)) |
| return -EAGAIN; |
| |
| mlx4_ib_set_vma_data(vma, |
| &mucontext->hw_bar_info[HW_BAR_CLOCK]); |
| } else { |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, |
| struct ib_ucontext *context, |
| struct ib_udata *udata) |
| { |
| struct mlx4_ib_pd *pd; |
| int err; |
| |
| pd = kzalloc(sizeof(*pd), GFP_KERNEL); |
| if (!pd) |
| return ERR_PTR(-ENOMEM); |
| |
| err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); |
| if (err) { |
| kfree(pd); |
| return ERR_PTR(err); |
| } |
| |
| if (context) |
| if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { |
| mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); |
| kfree(pd); |
| return ERR_PTR(-EFAULT); |
| } |
| return &pd->ibpd; |
| } |
| |
| static int mlx4_ib_dealloc_pd(struct ib_pd *pd) |
| { |
| mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); |
| kfree(pd); |
| |
| return 0; |
| } |
| |
| static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev, |
| struct ib_ucontext *context, |
| struct ib_udata *udata) |
| { |
| struct mlx4_ib_xrcd *xrcd; |
| struct ib_cq_init_attr cq_attr = {}; |
| int err; |
| |
| if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) |
| return ERR_PTR(-ENOSYS); |
| |
| xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL); |
| if (!xrcd) |
| return ERR_PTR(-ENOMEM); |
| |
| err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn); |
| if (err) |
| goto err1; |
| |
| xrcd->pd = ib_alloc_pd(ibdev, 0); |
| if (IS_ERR(xrcd->pd)) { |
| err = PTR_ERR(xrcd->pd); |
| goto err2; |
| } |
| |
| cq_attr.cqe = 1; |
| xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, &cq_attr); |
| if (IS_ERR(xrcd->cq)) { |
| err = PTR_ERR(xrcd->cq); |
| goto err3; |
| } |
| |
| return &xrcd->ibxrcd; |
| |
| err3: |
| ib_dealloc_pd(xrcd->pd); |
| err2: |
| mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn); |
| err1: |
| kfree(xrcd); |
| return ERR_PTR(err); |
| } |
| |
| static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd) |
| { |
| 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); |
| kfree(xrcd); |
| |
| 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]; |
| if (ndev) |
| 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++) { |
| int ret; |
| union ib_flow_spec ib_spec; |
| 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; |
| |
| static const u16 __mlx4_domain[] = { |
| [IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS, |
| [IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL, |
| [IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS, |
| [IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC, |
| }; |
| |
| if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) { |
| pr_err("Invalid priority value %d\n", flow_attr->priority); |
| return -EINVAL; |
| } |
| |
| if (domain >= IB_FLOW_DOMAIN_NUM) { |
| pr_err("Invalid domain value %d\n", domain); |
| 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(__mlx4_domain[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, |
| int domain, 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->port < 1 || flow_attr->port > qp->device->phys_port_cnt) |
| return ERR_PTR(-EINVAL); |
| |
| 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, domain, 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, |
| domain, 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; |
| if (ndev) |
| dev_hold(ndev); |
| spin_unlock_bh(&mdev->iboe.lock); |
| if (ndev) |
| 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 = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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; |
| |
| 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 show_hca(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx4_ib_dev *dev = |
| container_of(device, struct mlx4_ib_dev, ib_dev.dev); |
| return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device); |
| } |
| |
| static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx4_ib_dev *dev = |
| container_of(device, struct mlx4_ib_dev, ib_dev.dev); |
| return sprintf(buf, "%x\n", dev->dev->rev_id); |
| } |
| |
| static ssize_t show_board(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx4_ib_dev *dev = |
| container_of(device, struct mlx4_ib_dev, ib_dev.dev); |
| return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, |
| dev->dev->board_id); |
| } |
| |
| static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
| static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
| |
| static struct device_attribute *mlx4_class_attributes[] = { |
| &dev_attr_hw_rev, |
| &dev_attr_hca_type, |
| &dev_attr_board_id |
| }; |
| |
| 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_stats(struct ib_device *ibdev, |
| u8 port_num) |
| { |
| struct mlx4_ib_dev *dev = to_mdev(ibdev); |
| struct mlx4_ib_diag_counters *diag = dev->diag_counters; |
| |
| if (!diag[!!port_num].name) |
| return NULL; |
| |
| return rdma_alloc_hw_stats_struct(diag[!!port_num].name, |
| diag[!!port_num].num_counters, |
| RDMA_HW_STATS_DEFAULT_LIFESPAN); |
| } |
| |
| static int mlx4_ib_get_hw_stats(struct ib_device *ibdev, |
| struct rdma_hw_stats *stats, |
| u8 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, |
| const char ***name, |
| 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); |
| |
| *name = kcalloc(num_counters, sizeof(**name), GFP_KERNEL); |
| if (!*name) |
| return -ENOMEM; |
| |
| *offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL); |
| if (!*offset) |
| goto err_name; |
| |
| *num = num_counters; |
| |
| return 0; |
| |
| err_name: |
| kfree(*name); |
| return -ENOMEM; |
| } |
| |
| static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev, |
| const char **name, |
| u32 *offset, |
| bool port) |
| { |
| int i; |
| int j; |
| |
| for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) { |
| name[i] = 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++) { |
| name[j] = diag_ext[i].name; |
| offset[j] = diag_ext[i].offset; |
| } |
| } |
| |
| if (!port) { |
| for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) { |
| name[j] = diag_device_only[i].name; |
| offset[j] = diag_device_only[i].offset; |
| } |
| } |
| } |
| |
| 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 */ |
| if (i && !per_port) |
| continue; |
| |
| ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].name, |
| &diag[i].offset, |
| &diag[i].num_counters, i); |
| if (ret) |
| goto err_alloc; |
| |
| mlx4_ib_fill_diag_counters(ibdev, diag[i].name, |
| diag[i].offset, i); |
| } |
| |
| ibdev->ib_dev.get_hw_stats = mlx4_ib_get_hw_stats; |
| ibdev->ib_dev.alloc_hw_stats = mlx4_ib_alloc_hw_stats; |
| |
| return 0; |
| |
| err_alloc: |
| if (i) { |
| kfree(diag[i - 1].name); |
| 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].name); |
| } |
| } |
| |
| #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; |
| |
| read_lock(&dev_base_lock); |
| new_smac = mlx4_mac_to_u64(dev->dev_addr); |
| read_unlock(&dev_base_lock); |
| |
| 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_netdevs(struct mlx4_ib_dev *ibdev, |
| struct net_device *dev, |
| unsigned long event) |
| |
| { |
| struct mlx4_ib_iboe *iboe; |
| int update_qps_port = -1; |
| int port; |
| |
| ASSERT_RTNL(); |
| |
| iboe = &ibdev->iboe; |
| |
| spin_lock_bh(&iboe->lock); |
| mlx4_foreach_ib_transport_port(port, ibdev->dev) { |
| |
| iboe->netdevs[port - 1] = |
| mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); |
| |
| if (dev == iboe->netdevs[port - 1] && |
| (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER || |
| event == NETDEV_UP || event == NETDEV_CHANGE)) |
| update_qps_port = port; |
| |
| } |
| spin_unlock_bh(&iboe->lock); |
| |
| if (update_qps_port > 0) |
| mlx4_ib_update_qps(ibdev, dev, update_qps_port); |
| } |
| |
| 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_netdevs(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, u8 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 void *mlx4_ib_add(struct mlx4_dev *dev) |
| { |
| 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 = NULL; |
| |
| 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 NULL; |
| |
| ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); |
| if (!ibdev) { |
| dev_err(&dev->persist->pdev->dev, |
| "Device struct alloc failed\n"); |
| return NULL; |
| } |
| |
| iboe = &ibdev->iboe; |
| |
| if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) |
| goto err_dealloc; |
| |
| if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) |
| goto err_pd; |
| |
| ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT, |
| PAGE_SIZE); |
| if (!ibdev->uar_map) |
| goto err_uar; |
| MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); |
| |
| ibdev->dev = dev; |
| ibdev->bond_next_port = 0; |
| |
| strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); |
| ibdev->ib_dev.owner = THIS_MODULE; |
| 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; |
| ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev; |
| ibdev->ib_dev.add_gid = mlx4_ib_add_gid; |
| ibdev->ib_dev.del_gid = mlx4_ib_del_gid; |
| |
| if (dev->caps.userspace_caps) |
| ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; |
| else |
| ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION; |
| |
| ibdev->ib_dev.uverbs_cmd_mask = |
| (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | |
| (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | |
| (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | |
| (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | |
| (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | |
| (1ull << IB_USER_VERBS_CMD_REG_MR) | |
| (1ull << IB_USER_VERBS_CMD_REREG_MR) | |
| (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | |
| (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
| (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_QP) | |
| (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
| (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
| (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
| (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | |
| (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | |
| (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | |
| (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
| (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | |
| (1ull << IB_USER_VERBS_CMD_OPEN_QP); |
| |
| ibdev->ib_dev.query_device = mlx4_ib_query_device; |
| ibdev->ib_dev.query_port = mlx4_ib_query_port; |
| ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer; |
| ibdev->ib_dev.query_gid = mlx4_ib_query_gid; |
| ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; |
| ibdev->ib_dev.modify_device = mlx4_ib_modify_device; |
| ibdev->ib_dev.modify_port = mlx4_ib_modify_port; |
| ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; |
| ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; |
| ibdev->ib_dev.mmap = mlx4_ib_mmap; |
| ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; |
| ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; |
| ibdev->ib_dev.create_ah = mlx4_ib_create_ah; |
| ibdev->ib_dev.query_ah = mlx4_ib_query_ah; |
| ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; |
| ibdev->ib_dev.create_srq = mlx4_ib_create_srq; |
| ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; |
| ibdev->ib_dev.query_srq = mlx4_ib_query_srq; |
| ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; |
| ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; |
| ibdev->ib_dev.create_qp = mlx4_ib_create_qp; |
| ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; |
| ibdev->ib_dev.query_qp = mlx4_ib_query_qp; |
| ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; |
| ibdev->ib_dev.drain_sq = mlx4_ib_drain_sq; |
| ibdev->ib_dev.drain_rq = mlx4_ib_drain_rq; |
| ibdev->ib_dev.post_send = mlx4_ib_post_send; |
| ibdev->ib_dev.post_recv = mlx4_ib_post_recv; |
| ibdev->ib_dev.create_cq = mlx4_ib_create_cq; |
| ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; |
| ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; |
| ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; |
| ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; |
| ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; |
| ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; |
| ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; |
| ibdev->ib_dev.rereg_user_mr = mlx4_ib_rereg_user_mr; |
| ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; |
| ibdev->ib_dev.alloc_mr = mlx4_ib_alloc_mr; |
| ibdev->ib_dev.map_mr_sg = mlx4_ib_map_mr_sg; |
| ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; |
| ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; |
| ibdev->ib_dev.process_mad = mlx4_ib_process_mad; |
| ibdev->ib_dev.get_port_immutable = mlx4_port_immutable; |
| ibdev->ib_dev.get_dev_fw_str = get_fw_ver_str; |
| ibdev->ib_dev.disassociate_ucontext = mlx4_ib_disassociate_ucontext; |
| |
| ibdev->ib_dev.uverbs_ex_cmd_mask |= |
| (1ull << IB_USER_VERBS_EX_CMD_MODIFY_CQ); |
| |
| 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))) { |
| ibdev->ib_dev.create_wq = mlx4_ib_create_wq; |
| ibdev->ib_dev.modify_wq = mlx4_ib_modify_wq; |
| ibdev->ib_dev.destroy_wq = mlx4_ib_destroy_wq; |
| ibdev->ib_dev.create_rwq_ind_table = |
| mlx4_ib_create_rwq_ind_table; |
| ibdev->ib_dev.destroy_rwq_ind_table = |
| mlx4_ib_destroy_rwq_ind_table; |
| ibdev->ib_dev.uverbs_ex_cmd_mask |= |
| (1ull << IB_USER_VERBS_EX_CMD_CREATE_WQ) | |
| (1ull << IB_USER_VERBS_EX_CMD_MODIFY_WQ) | |
| (1ull << IB_USER_VERBS_EX_CMD_DESTROY_WQ) | |
| (1ull << IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL) | |
| (1ull << IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL); |
| } |
| |
| if (!mlx4_is_slave(ibdev->dev)) { |
| ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; |
| ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; |
| ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; |
| ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; |
| } |
| |
| if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || |
| dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) { |
| ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw; |
| ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw; |
| |
| ibdev->ib_dev.uverbs_cmd_mask |= |
| (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | |
| (1ull << IB_USER_VERBS_CMD_DEALLOC_MW); |
| } |
| |
| if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { |
| ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd; |
| ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd; |
| ibdev->ib_dev.uverbs_cmd_mask |= |
| (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | |
| (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); |
| } |
| |
| if (check_flow_steering_support(dev)) { |
| ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED; |
| ibdev->ib_dev.create_flow = mlx4_ib_create_flow; |
| ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow; |
| |
| ibdev->ib_dev.uverbs_ex_cmd_mask |= |
| (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | |
| (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW); |
| } |
| |
| ibdev->ib_dev.uverbs_ex_cmd_mask |= |
| (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) | |
| (1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) | |
| (1ull << IB_USER_VERBS_EX_CMD_CREATE_QP); |
| |
| mlx4_ib_alloc_eqs(dev, ibdev); |
| |
| spin_lock_init(&iboe->lock); |
| |
| if (init_node_data(ibdev)) |
| 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); |
| } |
| |
| 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) { |
| 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) |
| 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 = |
| kmalloc_array(BITS_TO_LONGS(ibdev->steer_qpn_count), |
| sizeof(long), |
| GFP_KERNEL); |
| if (!ibdev->ib_uc_qpns_bitmap) |
| 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]); |
| |
| if (mlx4_ib_alloc_diag_counters(ibdev)) |
| goto err_steer_free_bitmap; |
| |
| ibdev->ib_dev.driver_id = RDMA_DRIVER_MLX4; |
| if (ib_register_device(&ibdev->ib_dev, NULL)) |
| goto err_diag_counters; |
| |
| if (mlx4_ib_mad_init(ibdev)) |
| goto err_reg; |
| |
| if (mlx4_ib_init_sriov(ibdev)) |
| 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; |
| } |
| |
| for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { |
| if (device_create_file(&ibdev->ib_dev.dev, |
| mlx4_class_attributes[j])) |
| 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); |
| } |
| } |
| return ibdev; |
| |
| 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: |
| kfree(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 NULL; |
| } |
| |
| 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 = NULL; |
| 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, |
| IB_FLOW_DOMAIN_NIC, |
| MLX4_FS_REGULAR, |
| &mqp->reg_id); |
| } else { |
| err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id); |
| } |
| kfree(flow); |
| return err; |
| } |
| |
| static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) |
| { |
| struct mlx4_ib_dev *ibdev = ibdev_ptr; |
| int p; |
| int i; |
| |
| 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); |
| |
| mlx4_ib_close_sriov(ibdev); |
| mlx4_ib_mad_cleanup(ibdev); |
| ib_unregister_device(&ibdev->ib_dev); |
| mlx4_ib_diag_cleanup(ibdev); |
| 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_qp_release_range(dev, ibdev->steer_qpn_base, |
| ibdev->steer_qpn_count); |
| kfree(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 = NULL; |
| 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 void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, |
| enum mlx4_dev_event event, unsigned long param) |
| { |
| struct ib_event ibev; |
| struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); |
| 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; |
| INIT_WORK(&ew->work, handle_bonded_port_state_event); |
| ew->ib_dev = ibdev; |
| queue_work(wq, &ew->work); |
| return; |
| } |
| |
| if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE) |
| eqe = (struct mlx4_eqe *)param; |
| else |
| p = (int) param; |
| |
| switch (event) { |
| case MLX4_DEV_EVENT_PORT_UP: |
| if (p > ibdev->num_ports) |
| return; |
| 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; |
| 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) |
| break; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| default: |
| return; |
| } |
| |
| ibev.device = ibdev_ptr; |
| ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p; |
| |
| ib_dispatch_event(&ibev); |
| } |
| |
| static struct mlx4_interface mlx4_ib_interface = { |
| .add = mlx4_ib_add, |
| .remove = mlx4_ib_remove, |
| .event = mlx4_ib_event, |
| .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_mcg_init(); |
| if (err) |
| goto clean_wq; |
| |
| err = mlx4_register_interface(&mlx4_ib_interface); |
| if (err) |
| goto clean_mcg; |
| |
| return 0; |
| |
| clean_mcg: |
| mlx4_ib_mcg_destroy(); |
| |
| clean_wq: |
| destroy_workqueue(wq); |
| return err; |
| } |
| |
| static void __exit mlx4_ib_cleanup(void) |
| { |
| mlx4_unregister_interface(&mlx4_ib_interface); |
| mlx4_ib_mcg_destroy(); |
| destroy_workqueue(wq); |
| } |
| |
| module_init(mlx4_ib_init); |
| module_exit(mlx4_ib_cleanup); |