--- zzzz-none-000/linux-3.10.107/drivers/infiniband/hw/mlx4/main.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/infiniband/hw/mlx4/main.c 2021-02-04 17:41:59.000000000 +0000 @@ -39,41 +39,44 @@ #include #include #include +#include +#include #include #include #include +#include + +#include #include #include +#include #include "mlx4_ib.h" #include "user.h" #define DRV_NAME MLX4_IB_DRV_NAME -#define DRV_VERSION "1.0" -#define DRV_RELDATE "April 4, 2008" +#define DRV_VERSION "2.2-1" +#define DRV_RELDATE "Feb 2014" + +#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"); MODULE_VERSION(DRV_VERSION); -int mlx4_ib_sm_guid_assign = 1; +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: 1)"); +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 " (" DRV_RELDATE ")\n"; -struct update_gid_work { - struct work_struct work; - union ib_gid gids[128]; - struct mlx4_ib_dev *dev; - int port; -}; - static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init); static struct workqueue_struct *wq; @@ -86,16 +89,303 @@ mad->method = IB_MGMT_METHOD_GET; } -static union ib_gid zgid; +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(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_add_gid(struct ib_device *device, + u8 port_num, + unsigned int index, + const union ib_gid *gid, + const struct ib_gid_attr *attr, + void **context) +{ + struct mlx4_ib_dev *ibdev = to_mdev(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(device, port_num)) + return -EINVAL; + + if (port_num > MLX4_MAX_PORTS) + return -EINVAL; + + if (!context) + return -EINVAL; + + port_gid_table = &iboe->gids[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, gid, sizeof(*gid))) { + found = i; + break; + } + if (free < 0 && !memcmp(&port_gid_table->gids[i].gid, &zgid, sizeof(*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, gid, sizeof(*gid)); + 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(sizeof(*gids) * MLX4_MAX_PORT_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)); + } + } + spin_unlock_bh(&iboe->lock); + + if (!ret && hw_update) { + ret = mlx4_ib_update_gids(gids, ibdev, port_num); + kfree(gids); + } + + return ret; +} + +static int mlx4_ib_del_gid(struct ib_device *device, + u8 port_num, + unsigned int index, + void **context) +{ + struct gid_cache_context *ctx = *context; + struct mlx4_ib_dev *ibdev = to_mdev(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(device, port_num)) + return -EINVAL; + + if (port_num > MLX4_MAX_PORTS) + return -EINVAL; + + port_gid_table = &iboe->gids[port_num - 1]; + spin_lock_bh(&iboe->lock); + if (ctx) { + ctx->refcount--; + if (!ctx->refcount) { + unsigned int real_index = ctx->real_index; + + memcpy(&port_gid_table->gids[real_index].gid, &zgid, sizeof(zgid)); + 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(sizeof(*gids) * MLX4_MAX_PORT_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)); + } + } + spin_unlock_bh(&iboe->lock); + + if (!ret && hw_update) { + ret = mlx4_ib_update_gids(gids, ibdev, port_num); + kfree(gids); + } + return ret; +} + +int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev, + u8 port_num, int index) +{ + struct mlx4_ib_iboe *iboe = &ibdev->iboe; + struct gid_cache_context *ctx = NULL; + union ib_gid gid; + struct mlx4_port_gid_table *port_gid_table; + int real_index = -EINVAL; + int i; + int ret; + unsigned long flags; + + 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 index; + + ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid, NULL); + if (ret) + return ret; + + if (!memcmp(&gid, &zgid, sizeof(gid))) + return -EINVAL; + + 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, &gid, sizeof(gid))) { + ctx = port_gid_table->gids[i].ctx; + break; + } + if (ctx) + real_index = ctx->real_index; + spin_unlock_irqrestore(&iboe->lock, flags); + return real_index; +} static int mlx4_ib_query_device(struct ib_device *ibdev, - struct ib_device_attr *props) + struct ib_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 = -ENOMEM; + 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); if (!in_mad || !out_mad) @@ -111,6 +401,8 @@ 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 | @@ -121,13 +413,15 @@ 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) + 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->caps.flags & MLX4_DEV_CAP_FLAG_BLH) + 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; @@ -144,28 +438,33 @@ 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->pdev->device; + 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->caps.num_qps - dev->dev->caps.reserved_qps; + props->max_qp = dev->dev->quotas.qp; props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; props->max_sge = min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); - props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; + 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->caps.num_mpts - dev->dev->caps.reserved_mrws; + 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->caps.num_srqs - dev->dev->caps.reserved_srqs; + 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; @@ -179,7 +478,25 @@ 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; + + 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 |= QUERY_DEVICE_RESP_MASK_TIMESTAMP; + resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE; + } + } + if (uhw->outlen) { + err = ib_copy_to_udata(uhw, &resp, resp.response_length); + if (err) + goto out; + } out: kfree(in_mad); kfree(out_mad); @@ -301,6 +618,7 @@ 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)) @@ -317,7 +635,7 @@ 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->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS; 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; @@ -326,8 +644,13 @@ props->state = IB_PORT_DOWN; props->phys_state = state_to_phys_state(props->state); props->active_mtu = IB_MTU_256; - spin_lock(&iboe->lock); + 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; @@ -338,7 +661,7 @@ IB_PORT_ACTIVE : IB_PORT_DOWN; props->phys_state = state_to_phys_state(props->state); out_unlock: - spin_unlock(&iboe->lock); + spin_unlock_bh(&iboe->lock); out: mlx4_free_cmd_mailbox(mdev->dev, mailbox); return err; @@ -421,23 +744,27 @@ return err; } -static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index, - union ib_gid *gid) -{ - struct mlx4_ib_dev *dev = to_mdev(ibdev); - - *gid = dev->iboe.gid_table[port - 1][index]; - - return 0; -} - static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, union ib_gid *gid) { - if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND) + int ret; + + if (rdma_protocol_ib(ibdev, port)) return __mlx4_ib_query_gid(ibdev, port, index, gid, 0); - else - return iboe_query_gid(ibdev, port, index, gid); + + if (!rdma_protocol_roce(ibdev, port)) + return -ENODEV; + + if (!rdma_cap_roce_gid_table(ibdev, port)) + return -ENODEV; + + ret = ib_get_cached_gid(ibdev, port, index, gid, NULL); + if (ret == -EAGAIN) { + memcpy(gid, &zgid, sizeof(*gid)); + return 0; + } + + return ret; } int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, @@ -505,7 +832,6 @@ if (IS_ERR(mailbox)) return 0; - memset(mailbox->buf, 0, 256); memcpy(mailbox->buf, props->node_desc, 64); mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); @@ -515,19 +841,16 @@ return 0; } -static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, - u32 cap_mask) +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; - u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; mailbox = mlx4_alloc_cmd_mailbox(dev->dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); - memset(mailbox->buf, 0, 256); - 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); @@ -536,8 +859,9 @@ ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); } - err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, - MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); + 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; @@ -546,11 +870,20 @@ 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; - mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); + /* 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 = mlx4_ib_query_port(ibdev, port, &attr); if (err) @@ -559,9 +892,9 @@ cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & ~props->clr_port_cap_mask; - err = mlx4_SET_PORT(to_mdev(ibdev), port, - !!(mask & IB_PORT_RESET_QKEY_CNTR), - 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); @@ -592,7 +925,7 @@ resp.cqe_size = dev->dev->caps.cqe_size; } - context = kmalloc(sizeof *context, GFP_KERNEL); + context = kzalloc(sizeof(*context), GFP_KERNEL); if (!context) return ERR_PTR(-ENOMEM); @@ -629,21 +962,143 @@ 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; + int ret = 0; + struct vm_area_struct *vma; + struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); + struct task_struct *owning_process = NULL; + struct mm_struct *owning_mm = NULL; + + owning_process = get_pid_task(ibcontext->tgid, PIDTYPE_PID); + if (!owning_process) + return; + + owning_mm = get_task_mm(owning_process); + if (!owning_mm) { + pr_info("no mm, disassociate ucontext is pending task termination\n"); + while (1) { + /* make sure that task is dead before returning, it may + * prevent a rare case of module down in parallel to a + * call to mlx4_ib_vma_close. + */ + put_task_struct(owning_process); + msleep(1); + owning_process = get_pid_task(ibcontext->tgid, + PIDTYPE_PID); + if (!owning_process || + owning_process->state == TASK_DEAD) { + pr_info("disassociate ucontext done, task was terminated\n"); + /* in case task was dead need to release the task struct */ + if (owning_process) + put_task_struct(owning_process); + return; + } + } + } + + /* need to protect from a race on closing the vma as part of + * mlx4_ib_vma_close(). + */ + down_read(&owning_mm->mmap_sem); + for (i = 0; i < HW_BAR_COUNT; i++) { + vma = context->hw_bar_info[i].vma; + if (!vma) + continue; + + ret = zap_vma_ptes(context->hw_bar_info[i].vma, + context->hw_bar_info[i].vma->vm_start, + PAGE_SIZE); + if (ret) { + pr_err("Error: zap_vma_ptes failed for index=%d, ret=%d\n", i, ret); + BUG_ON(1); + } + + /* context going to be destroyed, should not access ops any more */ + context->hw_bar_info[i].vma->vm_ops = NULL; + } + + up_read(&owning_mm->mmap_sem); + mmput(owning_mm); + put_task_struct(owning_process); +} + +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, @@ -651,8 +1106,36 @@ dev->dev->caps.num_uars, PAGE_SIZE, vma->vm_page_prot)) return -EAGAIN; - } else + + 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; } @@ -697,6 +1180,7 @@ 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)) @@ -716,7 +1200,8 @@ goto err2; } - xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0); + 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; @@ -766,28 +1251,39 @@ 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) { - u8 mac[6]; struct net_device *ndev; int ret = 0; if (!mqp->port) return 0; - spin_lock(&mdev->iboe.lock); + spin_lock_bh(&mdev->iboe.lock); ndev = mdev->iboe.netdevs[mqp->port - 1]; if (ndev) dev_hold(ndev); - spin_unlock(&mdev->iboe.lock); + spin_unlock_bh(&mdev->iboe.lock); if (ndev) { - rdma_get_mcast_mac((struct in6_addr *)gid, mac); - rtnl_lock(); - dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac); ret = 1; - rtnl_unlock(); dev_put(ndev); } @@ -796,17 +1292,427 @@ struct mlx4_ib_steering { struct list_head list; - u64 reg_id; + struct mlx4_flow_reg_id reg_id; union ib_gid gid; }; +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: + 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: + 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: + 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: + 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; + } + + 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_WRAPPED); + 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 argumant. 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_WRAPPED); + 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 struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, + struct ib_flow_attr *flow_attr, + int domain) +{ + 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); + + 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: + 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_UC_SNIFFER; + type[1] = MLX4_FS_MC_SNIFFER; + 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); - u64 reg_id; 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) { @@ -818,9 +1724,22 @@ err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), - MLX4_PROT_IB_IPV6, ®_id); - if (err) + 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) @@ -837,7 +1756,10 @@ err_add: mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, - MLX4_PROT_IB_IPV6, reg_id); + 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); @@ -864,11 +1786,12 @@ { 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); - u8 mac[6]; struct net_device *ndev; struct mlx4_ib_gid_entry *ge; - u64 reg_id = 0; + 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) { @@ -891,25 +1814,27 @@ } err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, - MLX4_PROT_IB_IPV6, reg_id); + 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(&mdev->iboe.lock); + spin_lock_bh(&mdev->iboe.lock); ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; if (ndev) dev_hold(ndev); - spin_unlock(&mdev->iboe.lock); - rdma_get_mcast_mac((struct in6_addr *)gid, mac); - if (ndev) { - rtnl_lock(); - dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac); - rtnl_unlock(); + spin_unlock_bh(&mdev->iboe.lock); + if (ndev) dev_put(ndev); - } list_del(&ge->list); kfree(ge); } else @@ -963,7 +1888,7 @@ { struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev, ib_dev.dev); - return sprintf(buf, "MT%d\n", dev->dev->pdev->device); + return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device); } static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, @@ -1005,197 +1930,106 @@ &dev_attr_board_id }; -static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev) -{ - memcpy(eui, dev->dev_addr, 3); - memcpy(eui + 5, dev->dev_addr + 3, 3); - if (vlan_id < 0x1000) { - eui[3] = vlan_id >> 8; - eui[4] = vlan_id & 0xff; - } else { - eui[3] = 0xff; - eui[4] = 0xfe; - } - eui[0] ^= 2; -} +#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); -static void update_gids_task(struct work_struct *work) -{ - struct update_gid_work *gw = container_of(work, struct update_gid_work, work); - struct mlx4_cmd_mailbox *mailbox; - union ib_gid *gids; - int err; - struct mlx4_dev *dev = gw->dev->dev; + atomic64_set(&ibdev->iboe.mac[port - 1], new_smac); - mailbox = mlx4_alloc_cmd_mailbox(dev); - if (IS_ERR(mailbox)) { - pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox)); + /* no need for update QP1 and mac registration in non-SRIOV */ + if (!mlx4_is_mfunc(ibdev->dev)) return; - } - - gids = mailbox->buf; - memcpy(gids, gw->gids, sizeof gw->gids); - - err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port, - 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, - MLX4_CMD_WRAPPED); - if (err) - pr_warn("set port command failed\n"); - else { - memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids); - mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE); - } - mlx4_free_cmd_mailbox(dev, mailbox); - kfree(gw); -} + 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) -static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear) { - struct net_device *ndev = dev->iboe.netdevs[port - 1]; - struct update_gid_work *work; - struct net_device *tmp; - int i; - u8 *hits; - int ret; - union ib_gid gid; - int free; - int found; - int need_update = 0; - u16 vid; - - work = kzalloc(sizeof *work, GFP_ATOMIC); - if (!work) - return -ENOMEM; - - hits = kzalloc(128, GFP_ATOMIC); - if (!hits) { - ret = -ENOMEM; - goto out; - } - - rcu_read_lock(); - for_each_netdev_rcu(&init_net, tmp) { - if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) { - gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL); - vid = rdma_vlan_dev_vlan_id(tmp); - mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev); - found = 0; - free = -1; - for (i = 0; i < 128; ++i) { - if (free < 0 && - !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) - free = i; - if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) { - hits[i] = 1; - found = 1; - break; - } - } - - if (!found) { - if (tmp == ndev && - (memcmp(&dev->iboe.gid_table[port - 1][0], - &gid, sizeof gid) || - !memcmp(&dev->iboe.gid_table[port - 1][0], - &zgid, sizeof gid))) { - dev->iboe.gid_table[port - 1][0] = gid; - ++need_update; - hits[0] = 1; - } else if (free >= 0) { - dev->iboe.gid_table[port - 1][free] = gid; - hits[free] = 1; - ++need_update; - } - } - } - } - rcu_read_unlock(); + struct mlx4_ib_iboe *iboe; + int update_qps_port = -1; + int port; - for (i = 0; i < 128; ++i) - if (!hits[i]) { - if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) - ++need_update; - dev->iboe.gid_table[port - 1][i] = zgid; - } + ASSERT_RTNL(); - if (need_update) { - memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids); - INIT_WORK(&work->work, update_gids_task); - work->port = port; - work->dev = dev; - queue_work(wq, &work->work); - } else - kfree(work); + iboe = &ibdev->iboe; - kfree(hits); - return 0; + spin_lock_bh(&iboe->lock); + mlx4_foreach_ib_transport_port(port, ibdev->dev) { -out: - kfree(work); - return ret; -} + iboe->netdevs[port - 1] = + mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); -static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event) -{ - switch (event) { - case NETDEV_UP: - case NETDEV_CHANGEADDR: - update_ipv6_gids(dev, port, 0); - break; + if (dev == iboe->netdevs[port - 1] && + (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER || + event == NETDEV_UP || event == NETDEV_CHANGE)) + update_qps_port = port; - case NETDEV_DOWN: - update_ipv6_gids(dev, port, 1); - dev->iboe.netdevs[port - 1] = NULL; } -} + spin_unlock_bh(&iboe->lock); -static void netdev_added(struct mlx4_ib_dev *dev, int port) -{ - update_ipv6_gids(dev, port, 0); + if (update_qps_port > 0) + mlx4_ib_update_qps(ibdev, dev, update_qps_port); } -static void netdev_removed(struct mlx4_ib_dev *dev, int port) +static int mlx4_ib_netdev_event(struct notifier_block *this, + unsigned long event, void *ptr) { - update_ipv6_gids(dev, port, 1); -} - -static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event, - void *ptr) -{ - struct net_device *dev = ptr; + struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct mlx4_ib_dev *ibdev; - struct net_device *oldnd; - struct mlx4_ib_iboe *iboe; - int port; if (!net_eq(dev_net(dev), &init_net)) return NOTIFY_DONE; ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); - iboe = &ibdev->iboe; - - spin_lock(&iboe->lock); - mlx4_foreach_ib_transport_port(port, ibdev->dev) { - oldnd = iboe->netdevs[port - 1]; - iboe->netdevs[port - 1] = - mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); - if (oldnd != iboe->netdevs[port - 1]) { - if (iboe->netdevs[port - 1]) - netdev_added(ibdev, port); - else - netdev_removed(ibdev, port); - } - } - - if (dev == iboe->netdevs[0] || - (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0])) - handle_en_event(ibdev, 1, event); - else if (dev == iboe->netdevs[1] - || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1])) - handle_en_event(ibdev, 2, event); - - spin_unlock(&iboe->lock); + mlx4_ib_scan_netdevs(ibdev, dev, event); return NOTIFY_DONE; } @@ -1207,7 +2041,8 @@ int i; if (mlx4_is_master(ibdev->dev)) { - for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) { + 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]; @@ -1234,78 +2069,75 @@ static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) { - char name[32]; - int eq_per_port = 0; - int added_eqs = 0; - int total_eqs = 0; - int i, j, eq; - - /* Legacy mode or comp_pool is not large enough */ - if (dev->caps.comp_pool == 0 || - dev->caps.num_ports > dev->caps.comp_pool) - return; + int i, j, eq = 0, total_eqs = 0; - eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/ - dev->caps.num_ports); - - /* Init eq table */ - added_eqs = 0; - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) - added_eqs += eq_per_port; - - total_eqs = dev->caps.num_comp_vectors + added_eqs; - - ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL); + ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors, + sizeof(ibdev->eq_table[0]), GFP_KERNEL); if (!ibdev->eq_table) return; - ibdev->eq_added = added_eqs; - - eq = 0; - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) { - for (j = 0; j < eq_per_port; j++) { - sprintf(name, "mlx4-ib-%d-%d@%s", - i, j, dev->pdev->bus->name); - /* Set IRQ for specific name (per ring) */ - if (mlx4_assign_eq(dev, name, NULL, - &ibdev->eq_table[eq])) { - /* Use legacy (same as mlx4_en driver) */ - pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq); - ibdev->eq_table[eq] = - (eq % dev->caps.num_comp_vectors); - } - eq++; + 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; } } - /* Fill the reset of the vector with legacy EQ */ - for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++) - ibdev->eq_table[eq++] = i; + 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 = total_eqs; + 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 additional eqs were added */ + /* no eqs were allocated */ if (!ibdev->eq_table) return; /* Reset the advertised EQ number */ - ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; + ibdev->ib_dev.num_comp_vectors = 0; - /* Free only the added eqs */ - for (i = 0; i < ibdev->eq_added; i++) { - /* Don't free legacy eqs if used */ - if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors) - continue; + 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; + int err; + + err = mlx4_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; + + if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) + immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; + else + immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE; + + immutable->max_mad_size = IB_MGMT_MAD_SIZE; + + return 0; } static void *mlx4_ib_add(struct mlx4_dev *dev) @@ -1315,17 +2147,14 @@ 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); - mlx4_foreach_non_ib_transport_port(i, dev) - num_ports++; - - if (mlx4_is_mfunc(dev) && num_ports) { - dev_err(&dev->pdev->dev, "RoCE is not supported over SRIOV as yet\n"); - return NULL; - } - num_ports = 0; mlx4_foreach_ib_transport_port(i, dev) num_ports++; @@ -1336,7 +2165,8 @@ ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); if (!ibdev) { - dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); + dev_err(&dev->persist->pdev->dev, + "Device struct alloc failed\n"); return NULL; } @@ -1355,15 +2185,20 @@ 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 = ibdev->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.dma_device = &dev->pdev->dev; + ibdev->ib_dev.dma_device = &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; @@ -1377,6 +2212,7 @@ (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) | @@ -1429,13 +2265,15 @@ 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_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; - ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; - ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; + 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.disassociate_ucontext = mlx4_ib_disassociate_ucontext; if (!mlx4_is_slave(ibdev->dev)) { ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; @@ -1463,6 +2301,21 @@ (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); @@ -1471,20 +2324,105 @@ goto err_map; 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, &ibdev->counters[i]); + err = mlx4_counter_alloc(ibdev->dev, &counter_index); + /* if failed to allocate a new counter, use default */ if (err) - ibdev->counters[i] = -1; - } else - ibdev->counters[i] = -1; - } + 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); + if (err) + goto err_counter; + + ibdev->ib_uc_qpns_bitmap = + kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) * + sizeof(long), + GFP_KERNEL); + if (!ibdev->ib_uc_qpns_bitmap) { + dev_err(&dev->persist->pdev->dev, + "bit map alloc failed\n"); + 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 (ib_register_device(&ibdev->ib_dev, NULL)) - goto err_counter; + goto err_steer_free_bitmap; if (mlx4_ib_mad_init(ibdev)) goto err_reg; @@ -1492,11 +2430,15 @@ if (mlx4_ib_init_sriov(ibdev)) goto err_mad; - if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) { - iboe->nb.notifier_call = mlx4_ib_netdev_event; - err = register_netdevice_notifier(&iboe->nb); - if (err) - goto err_sriov; + if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) { + 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; + } + } } for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { @@ -1522,11 +2464,13 @@ return ibdev; err_notif: - if (unregister_netdevice_notifier(&ibdev->iboe.nb)) - pr_warn("failure unregistering notifier\n"); + 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); -err_sriov: mlx4_ib_close_sriov(ibdev); err_mad: @@ -1535,10 +2479,16 @@ err_reg: ib_unregister_device(&ibdev->ib_dev); +err_steer_free_bitmap: + kfree(ibdev->ib_uc_qpns_bitmap); + +err_steer_qp_release: + if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) + mlx4_qp_release_range(dev, ibdev->steer_qpn_base, + ibdev->steer_qpn_count); err_counter: - for (; i; --i) - if (ibdev->counters[i - 1] != -1) - mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]); + for (i = 0; i < ibdev->num_ports; ++i) + mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]); err_map: iounmap(ibdev->uar_map); @@ -1555,11 +2505,77 @@ 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; + + BUG_ON(qpn < dev->steer_qpn_base); + + 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; + ibdev->ib_active = false; + flush_workqueue(wq); + mlx4_ib_close_sriov(ibdev); mlx4_ib_mad_cleanup(ibdev); ib_unregister_device(&ibdev->ib_dev); @@ -1568,10 +2584,17 @@ pr_warn("failure unregistering notifier\n"); ibdev->iboe.nb.notifier_call = NULL; } + + if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) { + 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) - if (ibdev->counters[p] != -1) - mlx4_counter_free(ibdev->dev, ibdev->counters[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); @@ -1588,44 +2611,150 @@ 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; - dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC); + 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) { pr_err("failed to allocate memory for tunneling qp update\n"); - goto out; + return; } - for (i = 0; i < dev->caps.num_ports; i++) { + for (i = 0; i < ports; i++) { dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC); if (!dm[i]) { pr_err("failed to allocate memory for tunneling qp update work struct\n"); - for (i = 0; i < dev->caps.num_ports; i++) { - if (dm[i]) - kfree(dm[i]); - } + while (--i >= 0) + kfree(dm[i]); goto out; } - } - /* initialize or tear down tunnel QPs for the slave */ - for (i = 0; i < dev->caps.num_ports; i++) { INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work); - dm[i]->port = i + 1; + dm[i]->port = first_port + i + 1; dm[i]->slave = slave; dm[i]->do_init = do_init; dm[i]->dev = ibdev; - spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags); - if (!ibdev->sriov.is_going_down) + } + /* 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); +} + static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, enum mlx4_dev_event event, unsigned long param) { @@ -1635,6 +2764,18 @@ 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 @@ -1661,6 +2802,7 @@ 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: @@ -1683,9 +2825,31 @@ 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; @@ -1695,7 +2859,7 @@ } ibev.device = ibdev_ptr; - ibev.element.port_num = (u8) p; + ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p; ib_dispatch_event(&ibev); } @@ -1704,7 +2868,8 @@ .add = mlx4_ib_add, .remove = mlx4_ib_remove, .event = mlx4_ib_event, - .protocol = MLX4_PROT_IB_IPV6 + .protocol = MLX4_PROT_IB_IPV6, + .flags = MLX4_INTFF_BONDING }; static int __init mlx4_ib_init(void)