| /* |
| * Copyright (c) 2013-2015, 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 <asm-generic/kmap_types.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/errno.h> |
| #include <linux/pci.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/slab.h> |
| #include <linux/io-mapping.h> |
| #include <linux/sched.h> |
| #include <rdma/ib_user_verbs.h> |
| #include <rdma/ib_smi.h> |
| #include <rdma/ib_umem.h> |
| #include "user.h" |
| #include "mlx5_ib.h" |
| |
| #define DRIVER_NAME "mlx5_ib" |
| #define DRIVER_VERSION "2.2-1" |
| #define DRIVER_RELDATE "Feb 2014" |
| |
| MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); |
| MODULE_DESCRIPTION("Mellanox Connect-IB HCA IB driver"); |
| MODULE_LICENSE("Dual BSD/GPL"); |
| MODULE_VERSION(DRIVER_VERSION); |
| |
| static int deprecated_prof_sel = 2; |
| module_param_named(prof_sel, deprecated_prof_sel, int, 0444); |
| MODULE_PARM_DESC(prof_sel, "profile selector. Deprecated here. Moved to module mlx5_core"); |
| |
| static char mlx5_version[] = |
| DRIVER_NAME ": Mellanox Connect-IB Infiniband driver v" |
| DRIVER_VERSION " (" DRIVER_RELDATE ")\n"; |
| |
| int mlx5_vector2eqn(struct mlx5_ib_dev *dev, int vector, int *eqn, int *irqn) |
| { |
| struct mlx5_eq_table *table = &dev->mdev->priv.eq_table; |
| struct mlx5_eq *eq, *n; |
| int err = -ENOENT; |
| |
| spin_lock(&table->lock); |
| list_for_each_entry_safe(eq, n, &dev->eqs_list, list) { |
| if (eq->index == vector) { |
| *eqn = eq->eqn; |
| *irqn = eq->irqn; |
| err = 0; |
| break; |
| } |
| } |
| spin_unlock(&table->lock); |
| |
| return err; |
| } |
| |
| static int alloc_comp_eqs(struct mlx5_ib_dev *dev) |
| { |
| struct mlx5_eq_table *table = &dev->mdev->priv.eq_table; |
| char name[MLX5_MAX_EQ_NAME]; |
| struct mlx5_eq *eq, *n; |
| int ncomp_vec; |
| int nent; |
| int err; |
| int i; |
| |
| INIT_LIST_HEAD(&dev->eqs_list); |
| ncomp_vec = table->num_comp_vectors; |
| nent = MLX5_COMP_EQ_SIZE; |
| for (i = 0; i < ncomp_vec; i++) { |
| eq = kzalloc(sizeof(*eq), GFP_KERNEL); |
| if (!eq) { |
| err = -ENOMEM; |
| goto clean; |
| } |
| |
| snprintf(name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i); |
| err = mlx5_create_map_eq(dev->mdev, eq, |
| i + MLX5_EQ_VEC_COMP_BASE, nent, 0, |
| name, &dev->mdev->priv.uuari.uars[0]); |
| if (err) { |
| kfree(eq); |
| goto clean; |
| } |
| mlx5_ib_dbg(dev, "allocated completion EQN %d\n", eq->eqn); |
| eq->index = i; |
| spin_lock(&table->lock); |
| list_add_tail(&eq->list, &dev->eqs_list); |
| spin_unlock(&table->lock); |
| } |
| |
| dev->num_comp_vectors = ncomp_vec; |
| return 0; |
| |
| clean: |
| spin_lock(&table->lock); |
| list_for_each_entry_safe(eq, n, &dev->eqs_list, list) { |
| list_del(&eq->list); |
| spin_unlock(&table->lock); |
| if (mlx5_destroy_unmap_eq(dev->mdev, eq)) |
| mlx5_ib_warn(dev, "failed to destroy EQ 0x%x\n", eq->eqn); |
| kfree(eq); |
| spin_lock(&table->lock); |
| } |
| spin_unlock(&table->lock); |
| return err; |
| } |
| |
| static void free_comp_eqs(struct mlx5_ib_dev *dev) |
| { |
| struct mlx5_eq_table *table = &dev->mdev->priv.eq_table; |
| struct mlx5_eq *eq, *n; |
| |
| spin_lock(&table->lock); |
| list_for_each_entry_safe(eq, n, &dev->eqs_list, list) { |
| list_del(&eq->list); |
| spin_unlock(&table->lock); |
| if (mlx5_destroy_unmap_eq(dev->mdev, eq)) |
| mlx5_ib_warn(dev, "failed to destroy EQ 0x%x\n", eq->eqn); |
| kfree(eq); |
| spin_lock(&table->lock); |
| } |
| spin_unlock(&table->lock); |
| } |
| |
| static int mlx5_ib_query_device(struct ib_device *ibdev, |
| struct ib_device_attr *props) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibdev); |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| struct mlx5_general_caps *gen; |
| int err = -ENOMEM; |
| int max_rq_sg; |
| int max_sq_sg; |
| u64 flags; |
| |
| gen = &dev->mdev->caps.gen; |
| 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_INFO; |
| |
| err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); |
| if (err) |
| goto out; |
| |
| memset(props, 0, sizeof(*props)); |
| |
| props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) | |
| (fw_rev_min(dev->mdev) << 16) | |
| fw_rev_sub(dev->mdev); |
| 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; |
| flags = gen->flags; |
| if (flags & MLX5_DEV_CAP_FLAG_BAD_PKEY_CNTR) |
| props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
| if (flags & MLX5_DEV_CAP_FLAG_BAD_QKEY_CNTR) |
| props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
| if (flags & MLX5_DEV_CAP_FLAG_APM) |
| props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
| props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; |
| if (flags & MLX5_DEV_CAP_FLAG_XRC) |
| props->device_cap_flags |= IB_DEVICE_XRC; |
| props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; |
| if (flags & MLX5_DEV_CAP_FLAG_SIG_HAND_OVER) { |
| props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER; |
| /* At this stage no support for signature handover */ |
| props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 | |
| IB_PROT_T10DIF_TYPE_2 | |
| IB_PROT_T10DIF_TYPE_3; |
| props->sig_guard_cap = IB_GUARD_T10DIF_CRC | |
| IB_GUARD_T10DIF_CSUM; |
| } |
| if (flags & MLX5_DEV_CAP_FLAG_BLOCK_MCAST) |
| props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; |
| |
| props->vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & |
| 0xffffff; |
| props->vendor_part_id = be16_to_cpup((__be16 *)(out_mad->data + 30)); |
| 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 = gen->min_page_sz; |
| props->max_qp = 1 << gen->log_max_qp; |
| props->max_qp_wr = gen->max_wqes; |
| max_rq_sg = gen->max_rq_desc_sz / sizeof(struct mlx5_wqe_data_seg); |
| max_sq_sg = (gen->max_sq_desc_sz - sizeof(struct mlx5_wqe_ctrl_seg)) / |
| sizeof(struct mlx5_wqe_data_seg); |
| props->max_sge = min(max_rq_sg, max_sq_sg); |
| props->max_cq = 1 << gen->log_max_cq; |
| props->max_cqe = gen->max_cqes - 1; |
| props->max_mr = 1 << gen->log_max_mkey; |
| props->max_pd = 1 << gen->log_max_pd; |
| props->max_qp_rd_atom = 1 << gen->log_max_ra_req_qp; |
| props->max_qp_init_rd_atom = 1 << gen->log_max_ra_res_qp; |
| props->max_srq = 1 << gen->log_max_srq; |
| props->max_srq_wr = gen->max_srq_wqes - 1; |
| props->local_ca_ack_delay = gen->local_ca_ack_delay; |
| props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
| props->max_srq_sge = max_rq_sg - 1; |
| props->max_fast_reg_page_list_len = (unsigned int)-1; |
| props->local_ca_ack_delay = gen->local_ca_ack_delay; |
| props->atomic_cap = IB_ATOMIC_NONE; |
| props->masked_atomic_cap = IB_ATOMIC_NONE; |
| props->max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); |
| props->max_mcast_grp = 1 << gen->log_max_mcg; |
| props->max_mcast_qp_attach = gen->max_qp_mcg; |
| props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
| props->max_mcast_grp; |
| props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */ |
| |
| #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
| if (dev->mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG) |
| props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; |
| props->odp_caps = dev->odp_caps; |
| #endif |
| |
| out: |
| kfree(in_mad); |
| kfree(out_mad); |
| |
| return err; |
| } |
| |
| int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, |
| struct ib_port_attr *props) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibdev); |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| struct mlx5_general_caps *gen; |
| int ext_active_speed; |
| int err = -ENOMEM; |
| |
| gen = &dev->mdev->caps.gen; |
| if (port < 1 || port > gen->num_ports) { |
| mlx5_ib_warn(dev, "invalid port number %d\n", port); |
| return -EINVAL; |
| } |
| |
| in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); |
| out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); |
| if (!in_mad || !out_mad) |
| goto out; |
| |
| memset(props, 0, sizeof(*props)); |
| |
| init_query_mad(in_mad); |
| in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| in_mad->attr_mod = cpu_to_be32(port); |
| |
| err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); |
| if (err) { |
| mlx5_ib_warn(dev, "err %d\n", 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)); |
| props->gid_tbl_len = out_mad->data[50]; |
| props->max_msg_sz = 1 << gen->log_max_msg; |
| props->pkey_tbl_len = gen->port[port - 1].pkey_table_len; |
| 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 = 16; /* FDR */ |
| break; |
| case 2: |
| props->active_speed = 32; /* EDR */ |
| break; |
| } |
| } |
| |
| /* If reported active speed is QDR, check if is FDR-10 */ |
| if (props->active_speed == 4) { |
| if (gen->ext_port_cap[port - 1] & |
| MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { |
| init_query_mad(in_mad); |
| in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; |
| in_mad->attr_mod = cpu_to_be32(port); |
| |
| err = mlx5_MAD_IFC(dev, 1, 1, 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 = 8; |
| } |
| } |
| |
| out: |
| kfree(in_mad); |
| kfree(out_mad); |
| |
| return err; |
| } |
| |
| static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
| union ib_gid *gid) |
| { |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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); |
| |
| err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); |
| if (err) |
| goto out; |
| |
| memcpy(gid->raw, out_mad->data + 8, 8); |
| |
| init_query_mad(in_mad); |
| in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; |
| in_mad->attr_mod = cpu_to_be32(index / 8); |
| |
| err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); |
| if (err) |
| goto out; |
| |
| memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); |
| |
| out: |
| kfree(in_mad); |
| kfree(out_mad); |
| return err; |
| } |
| |
| static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
| u16 *pkey) |
| { |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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); |
| |
| err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 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; |
| } |
| |
| struct mlx5_reg_node_desc { |
| u8 desc[64]; |
| }; |
| |
| static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, |
| struct ib_device_modify *props) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibdev); |
| struct mlx5_reg_node_desc in; |
| struct mlx5_reg_node_desc out; |
| int err; |
| |
| if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) |
| return -EOPNOTSUPP; |
| |
| if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) |
| return 0; |
| |
| /* |
| * If possible, pass node desc to FW, so it can generate |
| * a 144 trap. If cmd fails, just ignore. |
| */ |
| memcpy(&in, props->node_desc, 64); |
| err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out, |
| sizeof(out), MLX5_REG_NODE_DESC, 0, 1); |
| if (err) |
| return err; |
| |
| memcpy(ibdev->node_desc, props->node_desc, 64); |
| |
| return err; |
| } |
| |
| static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, |
| struct ib_port_modify *props) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibdev); |
| struct ib_port_attr attr; |
| u32 tmp; |
| int err; |
| |
| mutex_lock(&dev->cap_mask_mutex); |
| |
| err = mlx5_ib_query_port(ibdev, port, &attr); |
| if (err) |
| goto out; |
| |
| tmp = (attr.port_cap_flags | props->set_port_cap_mask) & |
| ~props->clr_port_cap_mask; |
| |
| err = mlx5_set_port_caps(dev->mdev, port, tmp); |
| |
| out: |
| mutex_unlock(&dev->cap_mask_mutex); |
| return err; |
| } |
| |
| static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev, |
| struct ib_udata *udata) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibdev); |
| struct mlx5_ib_alloc_ucontext_req_v2 req; |
| struct mlx5_ib_alloc_ucontext_resp resp; |
| struct mlx5_ib_ucontext *context; |
| struct mlx5_general_caps *gen; |
| struct mlx5_uuar_info *uuari; |
| struct mlx5_uar *uars; |
| int gross_uuars; |
| int num_uars; |
| int ver; |
| int uuarn; |
| int err; |
| int i; |
| size_t reqlen; |
| |
| gen = &dev->mdev->caps.gen; |
| if (!dev->ib_active) |
| return ERR_PTR(-EAGAIN); |
| |
| memset(&req, 0, sizeof(req)); |
| reqlen = udata->inlen - sizeof(struct ib_uverbs_cmd_hdr); |
| if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req)) |
| ver = 0; |
| else if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req_v2)) |
| ver = 2; |
| else |
| return ERR_PTR(-EINVAL); |
| |
| err = ib_copy_from_udata(&req, udata, reqlen); |
| if (err) |
| return ERR_PTR(err); |
| |
| if (req.flags || req.reserved) |
| return ERR_PTR(-EINVAL); |
| |
| if (req.total_num_uuars > MLX5_MAX_UUARS) |
| return ERR_PTR(-ENOMEM); |
| |
| if (req.total_num_uuars == 0) |
| return ERR_PTR(-EINVAL); |
| |
| req.total_num_uuars = ALIGN(req.total_num_uuars, |
| MLX5_NON_FP_BF_REGS_PER_PAGE); |
| if (req.num_low_latency_uuars > req.total_num_uuars - 1) |
| return ERR_PTR(-EINVAL); |
| |
| num_uars = req.total_num_uuars / MLX5_NON_FP_BF_REGS_PER_PAGE; |
| gross_uuars = num_uars * MLX5_BF_REGS_PER_PAGE; |
| resp.qp_tab_size = 1 << gen->log_max_qp; |
| resp.bf_reg_size = gen->bf_reg_size; |
| resp.cache_line_size = L1_CACHE_BYTES; |
| resp.max_sq_desc_sz = gen->max_sq_desc_sz; |
| resp.max_rq_desc_sz = gen->max_rq_desc_sz; |
| resp.max_send_wqebb = gen->max_wqes; |
| resp.max_recv_wr = gen->max_wqes; |
| resp.max_srq_recv_wr = gen->max_srq_wqes; |
| |
| context = kzalloc(sizeof(*context), GFP_KERNEL); |
| if (!context) |
| return ERR_PTR(-ENOMEM); |
| |
| uuari = &context->uuari; |
| mutex_init(&uuari->lock); |
| uars = kcalloc(num_uars, sizeof(*uars), GFP_KERNEL); |
| if (!uars) { |
| err = -ENOMEM; |
| goto out_ctx; |
| } |
| |
| uuari->bitmap = kcalloc(BITS_TO_LONGS(gross_uuars), |
| sizeof(*uuari->bitmap), |
| GFP_KERNEL); |
| if (!uuari->bitmap) { |
| err = -ENOMEM; |
| goto out_uar_ctx; |
| } |
| /* |
| * clear all fast path uuars |
| */ |
| for (i = 0; i < gross_uuars; i++) { |
| uuarn = i & 3; |
| if (uuarn == 2 || uuarn == 3) |
| set_bit(i, uuari->bitmap); |
| } |
| |
| uuari->count = kcalloc(gross_uuars, sizeof(*uuari->count), GFP_KERNEL); |
| if (!uuari->count) { |
| err = -ENOMEM; |
| goto out_bitmap; |
| } |
| |
| for (i = 0; i < num_uars; i++) { |
| err = mlx5_cmd_alloc_uar(dev->mdev, &uars[i].index); |
| if (err) |
| goto out_count; |
| } |
| |
| #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
| context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range; |
| #endif |
| |
| INIT_LIST_HEAD(&context->db_page_list); |
| mutex_init(&context->db_page_mutex); |
| |
| resp.tot_uuars = req.total_num_uuars; |
| resp.num_ports = gen->num_ports; |
| err = ib_copy_to_udata(udata, &resp, |
| sizeof(resp) - sizeof(resp.reserved)); |
| if (err) |
| goto out_uars; |
| |
| uuari->ver = ver; |
| uuari->num_low_latency_uuars = req.num_low_latency_uuars; |
| uuari->uars = uars; |
| uuari->num_uars = num_uars; |
| return &context->ibucontext; |
| |
| out_uars: |
| for (i--; i >= 0; i--) |
| mlx5_cmd_free_uar(dev->mdev, uars[i].index); |
| out_count: |
| kfree(uuari->count); |
| |
| out_bitmap: |
| kfree(uuari->bitmap); |
| |
| out_uar_ctx: |
| kfree(uars); |
| |
| out_ctx: |
| kfree(context); |
| return ERR_PTR(err); |
| } |
| |
| static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) |
| { |
| struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); |
| struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); |
| struct mlx5_uuar_info *uuari = &context->uuari; |
| int i; |
| |
| for (i = 0; i < uuari->num_uars; i++) { |
| if (mlx5_cmd_free_uar(dev->mdev, uuari->uars[i].index)) |
| mlx5_ib_warn(dev, "failed to free UAR 0x%x\n", uuari->uars[i].index); |
| } |
| |
| kfree(uuari->count); |
| kfree(uuari->bitmap); |
| kfree(uuari->uars); |
| kfree(context); |
| |
| return 0; |
| } |
| |
| static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev, int index) |
| { |
| return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + index; |
| } |
| |
| static int get_command(unsigned long offset) |
| { |
| return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK; |
| } |
| |
| static int get_arg(unsigned long offset) |
| { |
| return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1); |
| } |
| |
| static int get_index(unsigned long offset) |
| { |
| return get_arg(offset); |
| } |
| |
| static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) |
| { |
| struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); |
| struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); |
| struct mlx5_uuar_info *uuari = &context->uuari; |
| unsigned long command; |
| unsigned long idx; |
| phys_addr_t pfn; |
| |
| command = get_command(vma->vm_pgoff); |
| switch (command) { |
| case MLX5_IB_MMAP_REGULAR_PAGE: |
| if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
| return -EINVAL; |
| |
| idx = get_index(vma->vm_pgoff); |
| if (idx >= uuari->num_uars) |
| return -EINVAL; |
| |
| pfn = uar_index2pfn(dev, uuari->uars[idx].index); |
| mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn 0x%llx\n", idx, |
| (unsigned long long)pfn); |
| |
| vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
| if (io_remap_pfn_range(vma, vma->vm_start, pfn, |
| PAGE_SIZE, vma->vm_page_prot)) |
| return -EAGAIN; |
| |
| mlx5_ib_dbg(dev, "mapped WC at 0x%lx, PA 0x%llx\n", |
| vma->vm_start, |
| (unsigned long long)pfn << PAGE_SHIFT); |
| break; |
| |
| case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES: |
| return -ENOSYS; |
| |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int alloc_pa_mkey(struct mlx5_ib_dev *dev, u32 *key, u32 pdn) |
| { |
| struct mlx5_create_mkey_mbox_in *in; |
| struct mlx5_mkey_seg *seg; |
| struct mlx5_core_mr mr; |
| int err; |
| |
| in = kzalloc(sizeof(*in), GFP_KERNEL); |
| if (!in) |
| return -ENOMEM; |
| |
| seg = &in->seg; |
| seg->flags = MLX5_PERM_LOCAL_READ | MLX5_ACCESS_MODE_PA; |
| seg->flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64); |
| seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); |
| seg->start_addr = 0; |
| |
| err = mlx5_core_create_mkey(dev->mdev, &mr, in, sizeof(*in), |
| NULL, NULL, NULL); |
| if (err) { |
| mlx5_ib_warn(dev, "failed to create mkey, %d\n", err); |
| goto err_in; |
| } |
| |
| kfree(in); |
| *key = mr.key; |
| |
| return 0; |
| |
| err_in: |
| kfree(in); |
| |
| return err; |
| } |
| |
| static void free_pa_mkey(struct mlx5_ib_dev *dev, u32 key) |
| { |
| struct mlx5_core_mr mr; |
| int err; |
| |
| memset(&mr, 0, sizeof(mr)); |
| mr.key = key; |
| err = mlx5_core_destroy_mkey(dev->mdev, &mr); |
| if (err) |
| mlx5_ib_warn(dev, "failed to destroy mkey 0x%x\n", key); |
| } |
| |
| static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev, |
| struct ib_ucontext *context, |
| struct ib_udata *udata) |
| { |
| struct mlx5_ib_alloc_pd_resp resp; |
| struct mlx5_ib_pd *pd; |
| int err; |
| |
| pd = kmalloc(sizeof(*pd), GFP_KERNEL); |
| if (!pd) |
| return ERR_PTR(-ENOMEM); |
| |
| err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn); |
| if (err) { |
| kfree(pd); |
| return ERR_PTR(err); |
| } |
| |
| if (context) { |
| resp.pdn = pd->pdn; |
| if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { |
| mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); |
| kfree(pd); |
| return ERR_PTR(-EFAULT); |
| } |
| } else { |
| err = alloc_pa_mkey(to_mdev(ibdev), &pd->pa_lkey, pd->pdn); |
| if (err) { |
| mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); |
| kfree(pd); |
| return ERR_PTR(err); |
| } |
| } |
| |
| return &pd->ibpd; |
| } |
| |
| static int mlx5_ib_dealloc_pd(struct ib_pd *pd) |
| { |
| struct mlx5_ib_dev *mdev = to_mdev(pd->device); |
| struct mlx5_ib_pd *mpd = to_mpd(pd); |
| |
| if (!pd->uobject) |
| free_pa_mkey(mdev, mpd->pa_lkey); |
| |
| mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn); |
| kfree(mpd); |
| |
| return 0; |
| } |
| |
| static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibqp->device); |
| int err; |
| |
| err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num); |
| if (err) |
| mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n", |
| ibqp->qp_num, gid->raw); |
| |
| return err; |
| } |
| |
| static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
| { |
| struct mlx5_ib_dev *dev = to_mdev(ibqp->device); |
| int err; |
| |
| err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num); |
| if (err) |
| mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n", |
| ibqp->qp_num, gid->raw); |
| |
| return err; |
| } |
| |
| static int init_node_data(struct mlx5_ib_dev *dev) |
| { |
| struct ib_smp *in_mad = NULL; |
| struct ib_smp *out_mad = NULL; |
| 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; |
| |
| err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); |
| if (err) |
| goto out; |
| |
| memcpy(dev->ib_dev.node_desc, out_mad->data, 64); |
| |
| in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
| |
| err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); |
| if (err) |
| goto out; |
| |
| dev->mdev->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_fw_pages(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx5_ib_dev *dev = |
| container_of(device, struct mlx5_ib_dev, ib_dev.dev); |
| |
| return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages); |
| } |
| |
| static ssize_t show_reg_pages(struct device *device, |
| struct device_attribute *attr, char *buf) |
| { |
| struct mlx5_ib_dev *dev = |
| container_of(device, struct mlx5_ib_dev, ib_dev.dev); |
| |
| return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages)); |
| } |
| |
| static ssize_t show_hca(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx5_ib_dev *dev = |
| container_of(device, struct mlx5_ib_dev, ib_dev.dev); |
| return sprintf(buf, "MT%d\n", dev->mdev->pdev->device); |
| } |
| |
| static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx5_ib_dev *dev = |
| container_of(device, struct mlx5_ib_dev, ib_dev.dev); |
| return sprintf(buf, "%d.%d.%d\n", fw_rev_maj(dev->mdev), |
| fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev)); |
| } |
| |
| static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx5_ib_dev *dev = |
| container_of(device, struct mlx5_ib_dev, ib_dev.dev); |
| return sprintf(buf, "%x\n", dev->mdev->rev_id); |
| } |
| |
| static ssize_t show_board(struct device *device, struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx5_ib_dev *dev = |
| container_of(device, struct mlx5_ib_dev, ib_dev.dev); |
| return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN, |
| dev->mdev->board_id); |
| } |
| |
| static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); |
| static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
| static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
| static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL); |
| static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL); |
| |
| static struct device_attribute *mlx5_class_attributes[] = { |
| &dev_attr_hw_rev, |
| &dev_attr_fw_ver, |
| &dev_attr_hca_type, |
| &dev_attr_board_id, |
| &dev_attr_fw_pages, |
| &dev_attr_reg_pages, |
| }; |
| |
| static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context, |
| enum mlx5_dev_event event, unsigned long param) |
| { |
| struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context; |
| struct ib_event ibev; |
| |
| u8 port = 0; |
| |
| switch (event) { |
| case MLX5_DEV_EVENT_SYS_ERROR: |
| ibdev->ib_active = false; |
| ibev.event = IB_EVENT_DEVICE_FATAL; |
| break; |
| |
| case MLX5_DEV_EVENT_PORT_UP: |
| ibev.event = IB_EVENT_PORT_ACTIVE; |
| port = (u8)param; |
| break; |
| |
| case MLX5_DEV_EVENT_PORT_DOWN: |
| ibev.event = IB_EVENT_PORT_ERR; |
| port = (u8)param; |
| break; |
| |
| case MLX5_DEV_EVENT_PORT_INITIALIZED: |
| /* not used by ULPs */ |
| return; |
| |
| case MLX5_DEV_EVENT_LID_CHANGE: |
| ibev.event = IB_EVENT_LID_CHANGE; |
| port = (u8)param; |
| break; |
| |
| case MLX5_DEV_EVENT_PKEY_CHANGE: |
| ibev.event = IB_EVENT_PKEY_CHANGE; |
| port = (u8)param; |
| break; |
| |
| case MLX5_DEV_EVENT_GUID_CHANGE: |
| ibev.event = IB_EVENT_GID_CHANGE; |
| port = (u8)param; |
| break; |
| |
| case MLX5_DEV_EVENT_CLIENT_REREG: |
| ibev.event = IB_EVENT_CLIENT_REREGISTER; |
| port = (u8)param; |
| break; |
| } |
| |
| ibev.device = &ibdev->ib_dev; |
| ibev.element.port_num = port; |
| |
| if (port < 1 || port > ibdev->num_ports) { |
| mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); |
| return; |
| } |
| |
| if (ibdev->ib_active) |
| ib_dispatch_event(&ibev); |
| } |
| |
| static void get_ext_port_caps(struct mlx5_ib_dev *dev) |
| { |
| struct mlx5_general_caps *gen; |
| int port; |
| |
| gen = &dev->mdev->caps.gen; |
| for (port = 1; port <= gen->num_ports; port++) |
| mlx5_query_ext_port_caps(dev, port); |
| } |
| |
| static int get_port_caps(struct mlx5_ib_dev *dev) |
| { |
| struct ib_device_attr *dprops = NULL; |
| struct ib_port_attr *pprops = NULL; |
| struct mlx5_general_caps *gen; |
| int err = -ENOMEM; |
| int port; |
| |
| gen = &dev->mdev->caps.gen; |
| pprops = kmalloc(sizeof(*pprops), GFP_KERNEL); |
| if (!pprops) |
| goto out; |
| |
| dprops = kmalloc(sizeof(*dprops), GFP_KERNEL); |
| if (!dprops) |
| goto out; |
| |
| err = mlx5_ib_query_device(&dev->ib_dev, dprops); |
| if (err) { |
| mlx5_ib_warn(dev, "query_device failed %d\n", err); |
| goto out; |
| } |
| |
| for (port = 1; port <= gen->num_ports; port++) { |
| err = mlx5_ib_query_port(&dev->ib_dev, port, pprops); |
| if (err) { |
| mlx5_ib_warn(dev, "query_port %d failed %d\n", port, err); |
| break; |
| } |
| gen->port[port - 1].pkey_table_len = dprops->max_pkeys; |
| gen->port[port - 1].gid_table_len = pprops->gid_tbl_len; |
| mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n", |
| dprops->max_pkeys, pprops->gid_tbl_len); |
| } |
| |
| out: |
| kfree(pprops); |
| kfree(dprops); |
| |
| return err; |
| } |
| |
| static void destroy_umrc_res(struct mlx5_ib_dev *dev) |
| { |
| int err; |
| |
| err = mlx5_mr_cache_cleanup(dev); |
| if (err) |
| mlx5_ib_warn(dev, "mr cache cleanup failed\n"); |
| |
| mlx5_ib_destroy_qp(dev->umrc.qp); |
| ib_destroy_cq(dev->umrc.cq); |
| ib_dereg_mr(dev->umrc.mr); |
| ib_dealloc_pd(dev->umrc.pd); |
| } |
| |
| enum { |
| MAX_UMR_WR = 128, |
| }; |
| |
| static int create_umr_res(struct mlx5_ib_dev *dev) |
| { |
| struct ib_qp_init_attr *init_attr = NULL; |
| struct ib_qp_attr *attr = NULL; |
| struct ib_pd *pd; |
| struct ib_cq *cq; |
| struct ib_qp *qp; |
| struct ib_mr *mr; |
| int ret; |
| |
| attr = kzalloc(sizeof(*attr), GFP_KERNEL); |
| init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); |
| if (!attr || !init_attr) { |
| ret = -ENOMEM; |
| goto error_0; |
| } |
| |
| pd = ib_alloc_pd(&dev->ib_dev); |
| if (IS_ERR(pd)) { |
| mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n"); |
| ret = PTR_ERR(pd); |
| goto error_0; |
| } |
| |
| mr = ib_get_dma_mr(pd, IB_ACCESS_LOCAL_WRITE); |
| if (IS_ERR(mr)) { |
| mlx5_ib_dbg(dev, "Couldn't create DMA MR for sync UMR QP\n"); |
| ret = PTR_ERR(mr); |
| goto error_1; |
| } |
| |
| cq = ib_create_cq(&dev->ib_dev, mlx5_umr_cq_handler, NULL, NULL, 128, |
| 0); |
| if (IS_ERR(cq)) { |
| mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n"); |
| ret = PTR_ERR(cq); |
| goto error_2; |
| } |
| ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); |
| |
| init_attr->send_cq = cq; |
| init_attr->recv_cq = cq; |
| init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; |
| init_attr->cap.max_send_wr = MAX_UMR_WR; |
| init_attr->cap.max_send_sge = 1; |
| init_attr->qp_type = MLX5_IB_QPT_REG_UMR; |
| init_attr->port_num = 1; |
| qp = mlx5_ib_create_qp(pd, init_attr, NULL); |
| if (IS_ERR(qp)) { |
| mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n"); |
| ret = PTR_ERR(qp); |
| goto error_3; |
| } |
| qp->device = &dev->ib_dev; |
| qp->real_qp = qp; |
| qp->uobject = NULL; |
| qp->qp_type = MLX5_IB_QPT_REG_UMR; |
| |
| attr->qp_state = IB_QPS_INIT; |
| attr->port_num = 1; |
| ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX | |
| IB_QP_PORT, NULL); |
| if (ret) { |
| mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n"); |
| goto error_4; |
| } |
| |
| memset(attr, 0, sizeof(*attr)); |
| attr->qp_state = IB_QPS_RTR; |
| attr->path_mtu = IB_MTU_256; |
| |
| ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); |
| if (ret) { |
| mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n"); |
| goto error_4; |
| } |
| |
| memset(attr, 0, sizeof(*attr)); |
| attr->qp_state = IB_QPS_RTS; |
| ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); |
| if (ret) { |
| mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n"); |
| goto error_4; |
| } |
| |
| dev->umrc.qp = qp; |
| dev->umrc.cq = cq; |
| dev->umrc.mr = mr; |
| dev->umrc.pd = pd; |
| |
| sema_init(&dev->umrc.sem, MAX_UMR_WR); |
| ret = mlx5_mr_cache_init(dev); |
| if (ret) { |
| mlx5_ib_warn(dev, "mr cache init failed %d\n", ret); |
| goto error_4; |
| } |
| |
| kfree(attr); |
| kfree(init_attr); |
| |
| return 0; |
| |
| error_4: |
| mlx5_ib_destroy_qp(qp); |
| |
| error_3: |
| ib_destroy_cq(cq); |
| |
| error_2: |
| ib_dereg_mr(mr); |
| |
| error_1: |
| ib_dealloc_pd(pd); |
| |
| error_0: |
| kfree(attr); |
| kfree(init_attr); |
| return ret; |
| } |
| |
| static int create_dev_resources(struct mlx5_ib_resources *devr) |
| { |
| struct ib_srq_init_attr attr; |
| struct mlx5_ib_dev *dev; |
| int ret = 0; |
| |
| dev = container_of(devr, struct mlx5_ib_dev, devr); |
| |
| devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); |
| if (IS_ERR(devr->p0)) { |
| ret = PTR_ERR(devr->p0); |
| goto error0; |
| } |
| devr->p0->device = &dev->ib_dev; |
| devr->p0->uobject = NULL; |
| atomic_set(&devr->p0->usecnt, 0); |
| |
| devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, 1, 0, NULL, NULL); |
| if (IS_ERR(devr->c0)) { |
| ret = PTR_ERR(devr->c0); |
| goto error1; |
| } |
| devr->c0->device = &dev->ib_dev; |
| devr->c0->uobject = NULL; |
| devr->c0->comp_handler = NULL; |
| devr->c0->event_handler = NULL; |
| devr->c0->cq_context = NULL; |
| atomic_set(&devr->c0->usecnt, 0); |
| |
| devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); |
| if (IS_ERR(devr->x0)) { |
| ret = PTR_ERR(devr->x0); |
| goto error2; |
| } |
| devr->x0->device = &dev->ib_dev; |
| devr->x0->inode = NULL; |
| atomic_set(&devr->x0->usecnt, 0); |
| mutex_init(&devr->x0->tgt_qp_mutex); |
| INIT_LIST_HEAD(&devr->x0->tgt_qp_list); |
| |
| devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); |
| if (IS_ERR(devr->x1)) { |
| ret = PTR_ERR(devr->x1); |
| goto error3; |
| } |
| devr->x1->device = &dev->ib_dev; |
| devr->x1->inode = NULL; |
| atomic_set(&devr->x1->usecnt, 0); |
| mutex_init(&devr->x1->tgt_qp_mutex); |
| INIT_LIST_HEAD(&devr->x1->tgt_qp_list); |
| |
| memset(&attr, 0, sizeof(attr)); |
| attr.attr.max_sge = 1; |
| attr.attr.max_wr = 1; |
| attr.srq_type = IB_SRQT_XRC; |
| attr.ext.xrc.cq = devr->c0; |
| attr.ext.xrc.xrcd = devr->x0; |
| |
| devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL); |
| if (IS_ERR(devr->s0)) { |
| ret = PTR_ERR(devr->s0); |
| goto error4; |
| } |
| devr->s0->device = &dev->ib_dev; |
| devr->s0->pd = devr->p0; |
| devr->s0->uobject = NULL; |
| devr->s0->event_handler = NULL; |
| devr->s0->srq_context = NULL; |
| devr->s0->srq_type = IB_SRQT_XRC; |
| devr->s0->ext.xrc.xrcd = devr->x0; |
| devr->s0->ext.xrc.cq = devr->c0; |
| atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt); |
| atomic_inc(&devr->s0->ext.xrc.cq->usecnt); |
| atomic_inc(&devr->p0->usecnt); |
| atomic_set(&devr->s0->usecnt, 0); |
| |
| return 0; |
| |
| error4: |
| mlx5_ib_dealloc_xrcd(devr->x1); |
| error3: |
| mlx5_ib_dealloc_xrcd(devr->x0); |
| error2: |
| mlx5_ib_destroy_cq(devr->c0); |
| error1: |
| mlx5_ib_dealloc_pd(devr->p0); |
| error0: |
| return ret; |
| } |
| |
| static void destroy_dev_resources(struct mlx5_ib_resources *devr) |
| { |
| mlx5_ib_destroy_srq(devr->s0); |
| mlx5_ib_dealloc_xrcd(devr->x0); |
| mlx5_ib_dealloc_xrcd(devr->x1); |
| mlx5_ib_destroy_cq(devr->c0); |
| mlx5_ib_dealloc_pd(devr->p0); |
| } |
| |
| static void *mlx5_ib_add(struct mlx5_core_dev *mdev) |
| { |
| struct mlx5_ib_dev *dev; |
| int err; |
| int i; |
| |
| printk_once(KERN_INFO "%s", mlx5_version); |
| |
| dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); |
| if (!dev) |
| return NULL; |
| |
| dev->mdev = mdev; |
| |
| err = get_port_caps(dev); |
| if (err) |
| goto err_dealloc; |
| |
| get_ext_port_caps(dev); |
| |
| err = alloc_comp_eqs(dev); |
| if (err) |
| goto err_dealloc; |
| |
| MLX5_INIT_DOORBELL_LOCK(&dev->uar_lock); |
| |
| strlcpy(dev->ib_dev.name, "mlx5_%d", IB_DEVICE_NAME_MAX); |
| dev->ib_dev.owner = THIS_MODULE; |
| dev->ib_dev.node_type = RDMA_NODE_IB_CA; |
| dev->ib_dev.local_dma_lkey = mdev->caps.gen.reserved_lkey; |
| dev->num_ports = mdev->caps.gen.num_ports; |
| dev->ib_dev.phys_port_cnt = dev->num_ports; |
| dev->ib_dev.num_comp_vectors = dev->num_comp_vectors; |
| dev->ib_dev.dma_device = &mdev->pdev->dev; |
| |
| dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; |
| dev->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_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); |
| dev->ib_dev.uverbs_ex_cmd_mask = |
| (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE); |
| |
| dev->ib_dev.query_device = mlx5_ib_query_device; |
| dev->ib_dev.query_port = mlx5_ib_query_port; |
| dev->ib_dev.query_gid = mlx5_ib_query_gid; |
| dev->ib_dev.query_pkey = mlx5_ib_query_pkey; |
| dev->ib_dev.modify_device = mlx5_ib_modify_device; |
| dev->ib_dev.modify_port = mlx5_ib_modify_port; |
| dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext; |
| dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext; |
| dev->ib_dev.mmap = mlx5_ib_mmap; |
| dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd; |
| dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd; |
| dev->ib_dev.create_ah = mlx5_ib_create_ah; |
| dev->ib_dev.query_ah = mlx5_ib_query_ah; |
| dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah; |
| dev->ib_dev.create_srq = mlx5_ib_create_srq; |
| dev->ib_dev.modify_srq = mlx5_ib_modify_srq; |
| dev->ib_dev.query_srq = mlx5_ib_query_srq; |
| dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq; |
| dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv; |
| dev->ib_dev.create_qp = mlx5_ib_create_qp; |
| dev->ib_dev.modify_qp = mlx5_ib_modify_qp; |
| dev->ib_dev.query_qp = mlx5_ib_query_qp; |
| dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp; |
| dev->ib_dev.post_send = mlx5_ib_post_send; |
| dev->ib_dev.post_recv = mlx5_ib_post_recv; |
| dev->ib_dev.create_cq = mlx5_ib_create_cq; |
| dev->ib_dev.modify_cq = mlx5_ib_modify_cq; |
| dev->ib_dev.resize_cq = mlx5_ib_resize_cq; |
| dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq; |
| dev->ib_dev.poll_cq = mlx5_ib_poll_cq; |
| dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq; |
| dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr; |
| dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr; |
| dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr; |
| dev->ib_dev.destroy_mr = mlx5_ib_destroy_mr; |
| dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach; |
| dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach; |
| dev->ib_dev.process_mad = mlx5_ib_process_mad; |
| dev->ib_dev.create_mr = mlx5_ib_create_mr; |
| dev->ib_dev.alloc_fast_reg_mr = mlx5_ib_alloc_fast_reg_mr; |
| dev->ib_dev.alloc_fast_reg_page_list = mlx5_ib_alloc_fast_reg_page_list; |
| dev->ib_dev.free_fast_reg_page_list = mlx5_ib_free_fast_reg_page_list; |
| dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; |
| |
| mlx5_ib_internal_query_odp_caps(dev); |
| |
| if (mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_XRC) { |
| dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd; |
| dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd; |
| dev->ib_dev.uverbs_cmd_mask |= |
| (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | |
| (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); |
| } |
| |
| err = init_node_data(dev); |
| if (err) |
| goto err_eqs; |
| |
| mutex_init(&dev->cap_mask_mutex); |
| |
| err = create_dev_resources(&dev->devr); |
| if (err) |
| goto err_eqs; |
| |
| err = mlx5_ib_odp_init_one(dev); |
| if (err) |
| goto err_rsrc; |
| |
| err = ib_register_device(&dev->ib_dev, NULL); |
| if (err) |
| goto err_odp; |
| |
| err = create_umr_res(dev); |
| if (err) |
| goto err_dev; |
| |
| for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) { |
| err = device_create_file(&dev->ib_dev.dev, |
| mlx5_class_attributes[i]); |
| if (err) |
| goto err_umrc; |
| } |
| |
| dev->ib_active = true; |
| |
| return dev; |
| |
| err_umrc: |
| destroy_umrc_res(dev); |
| |
| err_dev: |
| ib_unregister_device(&dev->ib_dev); |
| |
| err_odp: |
| mlx5_ib_odp_remove_one(dev); |
| |
| err_rsrc: |
| destroy_dev_resources(&dev->devr); |
| |
| err_eqs: |
| free_comp_eqs(dev); |
| |
| err_dealloc: |
| ib_dealloc_device((struct ib_device *)dev); |
| |
| return NULL; |
| } |
| |
| static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) |
| { |
| struct mlx5_ib_dev *dev = context; |
| |
| ib_unregister_device(&dev->ib_dev); |
| destroy_umrc_res(dev); |
| mlx5_ib_odp_remove_one(dev); |
| destroy_dev_resources(&dev->devr); |
| free_comp_eqs(dev); |
| ib_dealloc_device(&dev->ib_dev); |
| } |
| |
| static struct mlx5_interface mlx5_ib_interface = { |
| .add = mlx5_ib_add, |
| .remove = mlx5_ib_remove, |
| .event = mlx5_ib_event, |
| }; |
| |
| static int __init mlx5_ib_init(void) |
| { |
| int err; |
| |
| if (deprecated_prof_sel != 2) |
| pr_warn("prof_sel is deprecated for mlx5_ib, set it for mlx5_core\n"); |
| |
| err = mlx5_ib_odp_init(); |
| if (err) |
| return err; |
| |
| err = mlx5_register_interface(&mlx5_ib_interface); |
| if (err) |
| goto clean_odp; |
| |
| return err; |
| |
| clean_odp: |
| mlx5_ib_odp_cleanup(); |
| return err; |
| } |
| |
| static void __exit mlx5_ib_cleanup(void) |
| { |
| mlx5_unregister_interface(&mlx5_ib_interface); |
| mlx5_ib_odp_cleanup(); |
| } |
| |
| module_init(mlx5_ib_init); |
| module_exit(mlx5_ib_cleanup); |