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3325 lines
88 KiB
3325 lines
88 KiB
/* |
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. |
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* Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/errno.h> |
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#include <linux/netdevice.h> |
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#include <linux/inetdevice.h> |
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#include <linux/rtnetlink.h> |
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#include <linux/if_vlan.h> |
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#include <linux/sched/mm.h> |
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#include <linux/sched/task.h> |
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|
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#include <net/ipv6.h> |
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#include <net/addrconf.h> |
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#include <net/devlink.h> |
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|
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#include <rdma/ib_smi.h> |
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#include <rdma/ib_user_verbs.h> |
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#include <rdma/ib_addr.h> |
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#include <rdma/ib_cache.h> |
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|
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#include <net/bonding.h> |
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|
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#include <linux/mlx4/driver.h> |
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#include <linux/mlx4/cmd.h> |
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#include <linux/mlx4/qp.h> |
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|
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#include "mlx4_ib.h" |
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#include <rdma/mlx4-abi.h> |
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|
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#define DRV_NAME MLX4_IB_DRV_NAME |
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#define DRV_VERSION "4.0-0" |
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|
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#define MLX4_IB_FLOW_MAX_PRIO 0xFFF |
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#define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF |
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#define MLX4_IB_CARD_REV_A0 0xA0 |
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|
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MODULE_AUTHOR("Roland Dreier"); |
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MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); |
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MODULE_LICENSE("Dual BSD/GPL"); |
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|
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int mlx4_ib_sm_guid_assign = 0; |
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module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444); |
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MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)"); |
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|
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static const char mlx4_ib_version[] = |
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DRV_NAME ": Mellanox ConnectX InfiniBand driver v" |
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DRV_VERSION "\n"; |
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|
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static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init); |
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static enum rdma_link_layer mlx4_ib_port_link_layer(struct ib_device *device, |
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u8 port_num); |
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|
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static struct workqueue_struct *wq; |
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|
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static void init_query_mad(struct ib_smp *mad) |
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{ |
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mad->base_version = 1; |
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mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
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mad->class_version = 1; |
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mad->method = IB_MGMT_METHOD_GET; |
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} |
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|
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static int check_flow_steering_support(struct mlx4_dev *dev) |
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{ |
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int eth_num_ports = 0; |
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int ib_num_ports = 0; |
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|
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int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED; |
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|
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if (dmfs) { |
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int i; |
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mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) |
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eth_num_ports++; |
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mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) |
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ib_num_ports++; |
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dmfs &= (!ib_num_ports || |
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(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) && |
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(!eth_num_ports || |
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(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)); |
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if (ib_num_ports && mlx4_is_mfunc(dev)) { |
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pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n"); |
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dmfs = 0; |
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} |
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} |
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return dmfs; |
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} |
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|
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static int num_ib_ports(struct mlx4_dev *dev) |
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{ |
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int ib_ports = 0; |
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int i; |
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|
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mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) |
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ib_ports++; |
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|
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return ib_ports; |
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} |
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|
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static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num) |
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{ |
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struct mlx4_ib_dev *ibdev = to_mdev(device); |
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struct net_device *dev; |
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|
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rcu_read_lock(); |
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dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num); |
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|
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if (dev) { |
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if (mlx4_is_bonded(ibdev->dev)) { |
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struct net_device *upper = NULL; |
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|
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upper = netdev_master_upper_dev_get_rcu(dev); |
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if (upper) { |
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struct net_device *active; |
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|
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active = bond_option_active_slave_get_rcu(netdev_priv(upper)); |
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if (active) |
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dev = active; |
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} |
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} |
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} |
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if (dev) |
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dev_hold(dev); |
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|
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rcu_read_unlock(); |
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return dev; |
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} |
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|
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static int mlx4_ib_update_gids_v1(struct gid_entry *gids, |
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struct mlx4_ib_dev *ibdev, |
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u8 port_num) |
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{ |
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struct mlx4_cmd_mailbox *mailbox; |
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int err; |
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struct mlx4_dev *dev = ibdev->dev; |
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int i; |
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union ib_gid *gid_tbl; |
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|
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mailbox = mlx4_alloc_cmd_mailbox(dev); |
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if (IS_ERR(mailbox)) |
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return -ENOMEM; |
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|
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gid_tbl = mailbox->buf; |
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|
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for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) |
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memcpy(&gid_tbl[i], &gids[i].gid, sizeof(union ib_gid)); |
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|
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err = mlx4_cmd(dev, mailbox->dma, |
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MLX4_SET_PORT_GID_TABLE << 8 | port_num, |
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1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, |
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MLX4_CMD_WRAPPED); |
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if (mlx4_is_bonded(dev)) |
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err += mlx4_cmd(dev, mailbox->dma, |
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MLX4_SET_PORT_GID_TABLE << 8 | 2, |
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1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, |
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MLX4_CMD_WRAPPED); |
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|
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mlx4_free_cmd_mailbox(dev, mailbox); |
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return err; |
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} |
|
|
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static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids, |
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struct mlx4_ib_dev *ibdev, |
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u8 port_num) |
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{ |
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struct mlx4_cmd_mailbox *mailbox; |
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int err; |
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struct mlx4_dev *dev = ibdev->dev; |
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int i; |
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struct { |
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union ib_gid gid; |
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__be32 rsrvd1[2]; |
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__be16 rsrvd2; |
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u8 type; |
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u8 version; |
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__be32 rsrvd3; |
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} *gid_tbl; |
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|
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mailbox = mlx4_alloc_cmd_mailbox(dev); |
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if (IS_ERR(mailbox)) |
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return -ENOMEM; |
|
|
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gid_tbl = mailbox->buf; |
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for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) { |
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memcpy(&gid_tbl[i].gid, &gids[i].gid, sizeof(union ib_gid)); |
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if (gids[i].gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) { |
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gid_tbl[i].version = 2; |
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if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid)) |
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gid_tbl[i].type = 1; |
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} |
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} |
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|
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err = mlx4_cmd(dev, mailbox->dma, |
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MLX4_SET_PORT_ROCE_ADDR << 8 | port_num, |
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1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, |
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MLX4_CMD_WRAPPED); |
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if (mlx4_is_bonded(dev)) |
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err += mlx4_cmd(dev, mailbox->dma, |
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MLX4_SET_PORT_ROCE_ADDR << 8 | 2, |
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1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, |
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MLX4_CMD_WRAPPED); |
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|
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mlx4_free_cmd_mailbox(dev, mailbox); |
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return err; |
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} |
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|
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static int mlx4_ib_update_gids(struct gid_entry *gids, |
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struct mlx4_ib_dev *ibdev, |
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u8 port_num) |
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{ |
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if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) |
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return mlx4_ib_update_gids_v1_v2(gids, ibdev, port_num); |
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|
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return mlx4_ib_update_gids_v1(gids, ibdev, port_num); |
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} |
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|
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static void free_gid_entry(struct gid_entry *entry) |
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{ |
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memset(&entry->gid, 0, sizeof(entry->gid)); |
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kfree(entry->ctx); |
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entry->ctx = NULL; |
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} |
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|
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static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context) |
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{ |
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struct mlx4_ib_dev *ibdev = to_mdev(attr->device); |
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struct mlx4_ib_iboe *iboe = &ibdev->iboe; |
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struct mlx4_port_gid_table *port_gid_table; |
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int free = -1, found = -1; |
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int ret = 0; |
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int hw_update = 0; |
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int i; |
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struct gid_entry *gids = NULL; |
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u16 vlan_id = 0xffff; |
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u8 mac[ETH_ALEN]; |
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|
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if (!rdma_cap_roce_gid_table(attr->device, attr->port_num)) |
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return -EINVAL; |
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|
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if (attr->port_num > MLX4_MAX_PORTS) |
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return -EINVAL; |
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|
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if (!context) |
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return -EINVAL; |
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|
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ret = rdma_read_gid_l2_fields(attr, &vlan_id, &mac[0]); |
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if (ret) |
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return ret; |
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port_gid_table = &iboe->gids[attr->port_num - 1]; |
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spin_lock_bh(&iboe->lock); |
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for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) { |
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if (!memcmp(&port_gid_table->gids[i].gid, |
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&attr->gid, sizeof(attr->gid)) && |
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port_gid_table->gids[i].gid_type == attr->gid_type && |
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port_gid_table->gids[i].vlan_id == vlan_id) { |
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found = i; |
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break; |
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} |
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if (free < 0 && rdma_is_zero_gid(&port_gid_table->gids[i].gid)) |
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free = i; /* HW has space */ |
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} |
|
|
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if (found < 0) { |
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if (free < 0) { |
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ret = -ENOSPC; |
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} else { |
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port_gid_table->gids[free].ctx = kmalloc(sizeof(*port_gid_table->gids[free].ctx), GFP_ATOMIC); |
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if (!port_gid_table->gids[free].ctx) { |
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ret = -ENOMEM; |
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} else { |
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*context = port_gid_table->gids[free].ctx; |
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memcpy(&port_gid_table->gids[free].gid, |
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&attr->gid, sizeof(attr->gid)); |
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port_gid_table->gids[free].gid_type = attr->gid_type; |
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port_gid_table->gids[free].vlan_id = vlan_id; |
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port_gid_table->gids[free].ctx->real_index = free; |
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port_gid_table->gids[free].ctx->refcount = 1; |
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hw_update = 1; |
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} |
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} |
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} else { |
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struct gid_cache_context *ctx = port_gid_table->gids[found].ctx; |
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*context = ctx; |
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ctx->refcount++; |
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} |
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if (!ret && hw_update) { |
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gids = kmalloc_array(MLX4_MAX_PORT_GIDS, sizeof(*gids), |
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GFP_ATOMIC); |
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if (!gids) { |
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ret = -ENOMEM; |
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*context = NULL; |
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free_gid_entry(&port_gid_table->gids[free]); |
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} else { |
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for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) { |
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memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid)); |
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gids[i].gid_type = port_gid_table->gids[i].gid_type; |
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} |
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} |
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} |
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spin_unlock_bh(&iboe->lock); |
|
|
|
if (!ret && hw_update) { |
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ret = mlx4_ib_update_gids(gids, ibdev, attr->port_num); |
|
if (ret) { |
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spin_lock_bh(&iboe->lock); |
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*context = NULL; |
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free_gid_entry(&port_gid_table->gids[free]); |
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spin_unlock_bh(&iboe->lock); |
|
} |
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kfree(gids); |
|
} |
|
|
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return ret; |
|
} |
|
|
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static int mlx4_ib_del_gid(const struct ib_gid_attr *attr, void **context) |
|
{ |
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struct gid_cache_context *ctx = *context; |
|
struct mlx4_ib_dev *ibdev = to_mdev(attr->device); |
|
struct mlx4_ib_iboe *iboe = &ibdev->iboe; |
|
struct mlx4_port_gid_table *port_gid_table; |
|
int ret = 0; |
|
int hw_update = 0; |
|
struct gid_entry *gids = NULL; |
|
|
|
if (!rdma_cap_roce_gid_table(attr->device, attr->port_num)) |
|
return -EINVAL; |
|
|
|
if (attr->port_num > MLX4_MAX_PORTS) |
|
return -EINVAL; |
|
|
|
port_gid_table = &iboe->gids[attr->port_num - 1]; |
|
spin_lock_bh(&iboe->lock); |
|
if (ctx) { |
|
ctx->refcount--; |
|
if (!ctx->refcount) { |
|
unsigned int real_index = ctx->real_index; |
|
|
|
free_gid_entry(&port_gid_table->gids[real_index]); |
|
hw_update = 1; |
|
} |
|
} |
|
if (!ret && hw_update) { |
|
int i; |
|
|
|
gids = kmalloc_array(MLX4_MAX_PORT_GIDS, sizeof(*gids), |
|
GFP_ATOMIC); |
|
if (!gids) { |
|
ret = -ENOMEM; |
|
} else { |
|
for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) { |
|
memcpy(&gids[i].gid, |
|
&port_gid_table->gids[i].gid, |
|
sizeof(union ib_gid)); |
|
gids[i].gid_type = |
|
port_gid_table->gids[i].gid_type; |
|
} |
|
} |
|
} |
|
spin_unlock_bh(&iboe->lock); |
|
|
|
if (!ret && hw_update) { |
|
ret = mlx4_ib_update_gids(gids, ibdev, attr->port_num); |
|
kfree(gids); |
|
} |
|
return ret; |
|
} |
|
|
|
int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev, |
|
const struct ib_gid_attr *attr) |
|
{ |
|
struct mlx4_ib_iboe *iboe = &ibdev->iboe; |
|
struct gid_cache_context *ctx = NULL; |
|
struct mlx4_port_gid_table *port_gid_table; |
|
int real_index = -EINVAL; |
|
int i; |
|
unsigned long flags; |
|
u8 port_num = attr->port_num; |
|
|
|
if (port_num > MLX4_MAX_PORTS) |
|
return -EINVAL; |
|
|
|
if (mlx4_is_bonded(ibdev->dev)) |
|
port_num = 1; |
|
|
|
if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num)) |
|
return attr->index; |
|
|
|
spin_lock_irqsave(&iboe->lock, flags); |
|
port_gid_table = &iboe->gids[port_num - 1]; |
|
|
|
for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) |
|
if (!memcmp(&port_gid_table->gids[i].gid, |
|
&attr->gid, sizeof(attr->gid)) && |
|
attr->gid_type == port_gid_table->gids[i].gid_type) { |
|
ctx = port_gid_table->gids[i].ctx; |
|
break; |
|
} |
|
if (ctx) |
|
real_index = ctx->real_index; |
|
spin_unlock_irqrestore(&iboe->lock, flags); |
|
return real_index; |
|
} |
|
|
|
static int mlx4_ib_query_device(struct ib_device *ibdev, |
|
struct ib_device_attr *props, |
|
struct ib_udata *uhw) |
|
{ |
|
struct mlx4_ib_dev *dev = to_mdev(ibdev); |
|
struct ib_smp *in_mad = NULL; |
|
struct ib_smp *out_mad = NULL; |
|
int err; |
|
int have_ib_ports; |
|
struct mlx4_uverbs_ex_query_device cmd; |
|
struct mlx4_uverbs_ex_query_device_resp resp = {}; |
|
struct mlx4_clock_params clock_params; |
|
|
|
if (uhw->inlen) { |
|
if (uhw->inlen < sizeof(cmd)) |
|
return -EINVAL; |
|
|
|
err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd)); |
|
if (err) |
|
return err; |
|
|
|
if (cmd.comp_mask) |
|
return -EINVAL; |
|
|
|
if (cmd.reserved) |
|
return -EINVAL; |
|
} |
|
|
|
resp.response_length = offsetof(typeof(resp), response_length) + |
|
sizeof(resp.response_length); |
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
|
err = -ENOMEM; |
|
if (!in_mad || !out_mad) |
|
goto out; |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS, |
|
1, NULL, NULL, in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
memset(props, 0, sizeof *props); |
|
|
|
have_ib_ports = num_ib_ports(dev->dev); |
|
|
|
props->fw_ver = dev->dev->caps.fw_ver; |
|
props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
|
IB_DEVICE_PORT_ACTIVE_EVENT | |
|
IB_DEVICE_SYS_IMAGE_GUID | |
|
IB_DEVICE_RC_RNR_NAK_GEN | |
|
IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) |
|
props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) |
|
props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports) |
|
props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) |
|
props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) |
|
props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; |
|
if (dev->dev->caps.max_gso_sz && |
|
(dev->dev->rev_id != MLX4_IB_CARD_REV_A0) && |
|
(dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)) |
|
props->device_cap_flags |= IB_DEVICE_UD_TSO; |
|
if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) |
|
props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; |
|
if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && |
|
(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && |
|
(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) |
|
props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) |
|
props->device_cap_flags |= IB_DEVICE_XRC; |
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW) |
|
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW; |
|
if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) { |
|
if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B) |
|
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B; |
|
else |
|
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A; |
|
} |
|
if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) |
|
props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING; |
|
|
|
props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM; |
|
|
|
props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
|
0xffffff; |
|
props->vendor_part_id = dev->dev->persist->pdev->device; |
|
props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
|
memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
|
|
|
props->max_mr_size = ~0ull; |
|
props->page_size_cap = dev->dev->caps.page_size_cap; |
|
props->max_qp = dev->dev->quotas.qp; |
|
props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; |
|
props->max_send_sge = |
|
min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); |
|
props->max_recv_sge = |
|
min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); |
|
props->max_sge_rd = MLX4_MAX_SGE_RD; |
|
props->max_cq = dev->dev->quotas.cq; |
|
props->max_cqe = dev->dev->caps.max_cqes; |
|
props->max_mr = dev->dev->quotas.mpt; |
|
props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; |
|
props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; |
|
props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; |
|
props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
|
props->max_srq = dev->dev->quotas.srq; |
|
props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; |
|
props->max_srq_sge = dev->dev->caps.max_srq_sge; |
|
props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES; |
|
props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; |
|
props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? |
|
IB_ATOMIC_HCA : IB_ATOMIC_NONE; |
|
props->masked_atomic_cap = props->atomic_cap; |
|
props->max_pkeys = dev->dev->caps.pkey_table_len[1]; |
|
props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; |
|
props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; |
|
props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
|
props->max_mcast_grp; |
|
props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL; |
|
props->timestamp_mask = 0xFFFFFFFFFFFFULL; |
|
props->max_ah = INT_MAX; |
|
|
|
if (mlx4_ib_port_link_layer(ibdev, 1) == IB_LINK_LAYER_ETHERNET || |
|
mlx4_ib_port_link_layer(ibdev, 2) == IB_LINK_LAYER_ETHERNET) { |
|
if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) { |
|
props->rss_caps.max_rwq_indirection_tables = |
|
props->max_qp; |
|
props->rss_caps.max_rwq_indirection_table_size = |
|
dev->dev->caps.max_rss_tbl_sz; |
|
props->rss_caps.supported_qpts = 1 << IB_QPT_RAW_PACKET; |
|
props->max_wq_type_rq = props->max_qp; |
|
} |
|
|
|
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP) |
|
props->raw_packet_caps |= IB_RAW_PACKET_CAP_SCATTER_FCS; |
|
} |
|
|
|
props->cq_caps.max_cq_moderation_count = MLX4_MAX_CQ_COUNT; |
|
props->cq_caps.max_cq_moderation_period = MLX4_MAX_CQ_PERIOD; |
|
|
|
if (!mlx4_is_slave(dev->dev)) |
|
err = mlx4_get_internal_clock_params(dev->dev, &clock_params); |
|
|
|
if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) { |
|
resp.response_length += sizeof(resp.hca_core_clock_offset); |
|
if (!err && !mlx4_is_slave(dev->dev)) { |
|
resp.comp_mask |= MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET; |
|
resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE; |
|
} |
|
} |
|
|
|
if (uhw->outlen >= resp.response_length + |
|
sizeof(resp.max_inl_recv_sz)) { |
|
resp.response_length += sizeof(resp.max_inl_recv_sz); |
|
resp.max_inl_recv_sz = dev->dev->caps.max_rq_sg * |
|
sizeof(struct mlx4_wqe_data_seg); |
|
} |
|
|
|
if (offsetofend(typeof(resp), rss_caps) <= uhw->outlen) { |
|
if (props->rss_caps.supported_qpts) { |
|
resp.rss_caps.rx_hash_function = |
|
MLX4_IB_RX_HASH_FUNC_TOEPLITZ; |
|
|
|
resp.rss_caps.rx_hash_fields_mask = |
|
MLX4_IB_RX_HASH_SRC_IPV4 | |
|
MLX4_IB_RX_HASH_DST_IPV4 | |
|
MLX4_IB_RX_HASH_SRC_IPV6 | |
|
MLX4_IB_RX_HASH_DST_IPV6 | |
|
MLX4_IB_RX_HASH_SRC_PORT_TCP | |
|
MLX4_IB_RX_HASH_DST_PORT_TCP | |
|
MLX4_IB_RX_HASH_SRC_PORT_UDP | |
|
MLX4_IB_RX_HASH_DST_PORT_UDP; |
|
|
|
if (dev->dev->caps.tunnel_offload_mode == |
|
MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) |
|
resp.rss_caps.rx_hash_fields_mask |= |
|
MLX4_IB_RX_HASH_INNER; |
|
} |
|
resp.response_length = offsetof(typeof(resp), rss_caps) + |
|
sizeof(resp.rss_caps); |
|
} |
|
|
|
if (offsetofend(typeof(resp), tso_caps) <= uhw->outlen) { |
|
if (dev->dev->caps.max_gso_sz && |
|
((mlx4_ib_port_link_layer(ibdev, 1) == |
|
IB_LINK_LAYER_ETHERNET) || |
|
(mlx4_ib_port_link_layer(ibdev, 2) == |
|
IB_LINK_LAYER_ETHERNET))) { |
|
resp.tso_caps.max_tso = dev->dev->caps.max_gso_sz; |
|
resp.tso_caps.supported_qpts |= |
|
1 << IB_QPT_RAW_PACKET; |
|
} |
|
resp.response_length = offsetof(typeof(resp), tso_caps) + |
|
sizeof(resp.tso_caps); |
|
} |
|
|
|
if (uhw->outlen) { |
|
err = ib_copy_to_udata(uhw, &resp, resp.response_length); |
|
if (err) |
|
goto out; |
|
} |
|
out: |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
|
|
return err; |
|
} |
|
|
|
static enum rdma_link_layer |
|
mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num) |
|
{ |
|
struct mlx4_dev *dev = to_mdev(device)->dev; |
|
|
|
return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ? |
|
IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; |
|
} |
|
|
|
static int ib_link_query_port(struct ib_device *ibdev, u8 port, |
|
struct ib_port_attr *props, int netw_view) |
|
{ |
|
struct ib_smp *in_mad = NULL; |
|
struct ib_smp *out_mad = NULL; |
|
int ext_active_speed; |
|
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; |
|
int err = -ENOMEM; |
|
|
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
|
if (!in_mad || !out_mad) |
|
goto out; |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
|
in_mad->attr_mod = cpu_to_be32(port); |
|
|
|
if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) |
|
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; |
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, |
|
in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
|
|
props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
|
props->lmc = out_mad->data[34] & 0x7; |
|
props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); |
|
props->sm_sl = out_mad->data[36] & 0xf; |
|
props->state = out_mad->data[32] & 0xf; |
|
props->phys_state = out_mad->data[33] >> 4; |
|
props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); |
|
if (netw_view) |
|
props->gid_tbl_len = out_mad->data[50]; |
|
else |
|
props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; |
|
props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; |
|
props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; |
|
props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
|
props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); |
|
props->active_width = out_mad->data[31] & 0xf; |
|
props->active_speed = out_mad->data[35] >> 4; |
|
props->max_mtu = out_mad->data[41] & 0xf; |
|
props->active_mtu = out_mad->data[36] >> 4; |
|
props->subnet_timeout = out_mad->data[51] & 0x1f; |
|
props->max_vl_num = out_mad->data[37] >> 4; |
|
props->init_type_reply = out_mad->data[41] >> 4; |
|
|
|
/* Check if extended speeds (EDR/FDR/...) are supported */ |
|
if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { |
|
ext_active_speed = out_mad->data[62] >> 4; |
|
|
|
switch (ext_active_speed) { |
|
case 1: |
|
props->active_speed = IB_SPEED_FDR; |
|
break; |
|
case 2: |
|
props->active_speed = IB_SPEED_EDR; |
|
break; |
|
} |
|
} |
|
|
|
/* If reported active speed is QDR, check if is FDR-10 */ |
|
if (props->active_speed == IB_SPEED_QDR) { |
|
init_query_mad(in_mad); |
|
in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO; |
|
in_mad->attr_mod = cpu_to_be32(port); |
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, |
|
NULL, NULL, in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
/* Checking LinkSpeedActive for FDR-10 */ |
|
if (out_mad->data[15] & 0x1) |
|
props->active_speed = IB_SPEED_FDR10; |
|
} |
|
|
|
/* Avoid wrong speed value returned by FW if the IB link is down. */ |
|
if (props->state == IB_PORT_DOWN) |
|
props->active_speed = IB_SPEED_SDR; |
|
|
|
out: |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
return err; |
|
} |
|
|
|
static u8 state_to_phys_state(enum ib_port_state state) |
|
{ |
|
return state == IB_PORT_ACTIVE ? |
|
IB_PORT_PHYS_STATE_LINK_UP : IB_PORT_PHYS_STATE_DISABLED; |
|
} |
|
|
|
static int eth_link_query_port(struct ib_device *ibdev, u8 port, |
|
struct ib_port_attr *props) |
|
{ |
|
|
|
struct mlx4_ib_dev *mdev = to_mdev(ibdev); |
|
struct mlx4_ib_iboe *iboe = &mdev->iboe; |
|
struct net_device *ndev; |
|
enum ib_mtu tmp; |
|
struct mlx4_cmd_mailbox *mailbox; |
|
int err = 0; |
|
int is_bonded = mlx4_is_bonded(mdev->dev); |
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); |
|
if (IS_ERR(mailbox)) |
|
return PTR_ERR(mailbox); |
|
|
|
err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, |
|
MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B, |
|
MLX4_CMD_WRAPPED); |
|
if (err) |
|
goto out; |
|
|
|
props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) || |
|
(((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ? |
|
IB_WIDTH_4X : IB_WIDTH_1X; |
|
props->active_speed = (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ? |
|
IB_SPEED_FDR : IB_SPEED_QDR; |
|
props->port_cap_flags = IB_PORT_CM_SUP; |
|
props->ip_gids = true; |
|
props->gid_tbl_len = mdev->dev->caps.gid_table_len[port]; |
|
props->max_msg_sz = mdev->dev->caps.max_msg_sz; |
|
if (mdev->dev->caps.pkey_table_len[port]) |
|
props->pkey_tbl_len = 1; |
|
props->max_mtu = IB_MTU_4096; |
|
props->max_vl_num = 2; |
|
props->state = IB_PORT_DOWN; |
|
props->phys_state = state_to_phys_state(props->state); |
|
props->active_mtu = IB_MTU_256; |
|
spin_lock_bh(&iboe->lock); |
|
ndev = iboe->netdevs[port - 1]; |
|
if (ndev && is_bonded) { |
|
rcu_read_lock(); /* required to get upper dev */ |
|
ndev = netdev_master_upper_dev_get_rcu(ndev); |
|
rcu_read_unlock(); |
|
} |
|
if (!ndev) |
|
goto out_unlock; |
|
|
|
tmp = iboe_get_mtu(ndev->mtu); |
|
props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256; |
|
|
|
props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ? |
|
IB_PORT_ACTIVE : IB_PORT_DOWN; |
|
props->phys_state = state_to_phys_state(props->state); |
|
out_unlock: |
|
spin_unlock_bh(&iboe->lock); |
|
out: |
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox); |
|
return err; |
|
} |
|
|
|
int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port, |
|
struct ib_port_attr *props, int netw_view) |
|
{ |
|
int err; |
|
|
|
/* props being zeroed by the caller, avoid zeroing it here */ |
|
|
|
err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ? |
|
ib_link_query_port(ibdev, port, props, netw_view) : |
|
eth_link_query_port(ibdev, port, props); |
|
|
|
return err; |
|
} |
|
|
|
static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, |
|
struct ib_port_attr *props) |
|
{ |
|
/* returns host view */ |
|
return __mlx4_ib_query_port(ibdev, port, props, 0); |
|
} |
|
|
|
int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
|
union ib_gid *gid, int netw_view) |
|
{ |
|
struct ib_smp *in_mad = NULL; |
|
struct ib_smp *out_mad = NULL; |
|
int err = -ENOMEM; |
|
struct mlx4_ib_dev *dev = to_mdev(ibdev); |
|
int clear = 0; |
|
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; |
|
|
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
|
if (!in_mad || !out_mad) |
|
goto out; |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
|
in_mad->attr_mod = cpu_to_be32(port); |
|
|
|
if (mlx4_is_mfunc(dev->dev) && netw_view) |
|
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; |
|
|
|
err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
memcpy(gid->raw, out_mad->data + 8, 8); |
|
|
|
if (mlx4_is_mfunc(dev->dev) && !netw_view) { |
|
if (index) { |
|
/* For any index > 0, return the null guid */ |
|
err = 0; |
|
clear = 1; |
|
goto out; |
|
} |
|
} |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; |
|
in_mad->attr_mod = cpu_to_be32(index / 8); |
|
|
|
err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, |
|
NULL, NULL, in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); |
|
|
|
out: |
|
if (clear) |
|
memset(gid->raw + 8, 0, 8); |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
|
union ib_gid *gid) |
|
{ |
|
if (rdma_protocol_ib(ibdev, port)) |
|
return __mlx4_ib_query_gid(ibdev, port, index, gid, 0); |
|
return 0; |
|
} |
|
|
|
static int mlx4_ib_query_sl2vl(struct ib_device *ibdev, u8 port, u64 *sl2vl_tbl) |
|
{ |
|
union sl2vl_tbl_to_u64 sl2vl64; |
|
struct ib_smp *in_mad = NULL; |
|
struct ib_smp *out_mad = NULL; |
|
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; |
|
int err = -ENOMEM; |
|
int jj; |
|
|
|
if (mlx4_is_slave(to_mdev(ibdev)->dev)) { |
|
*sl2vl_tbl = 0; |
|
return 0; |
|
} |
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); |
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); |
|
if (!in_mad || !out_mad) |
|
goto out; |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_SL_TO_VL_TABLE; |
|
in_mad->attr_mod = 0; |
|
|
|
if (mlx4_is_mfunc(to_mdev(ibdev)->dev)) |
|
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; |
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, |
|
in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
for (jj = 0; jj < 8; jj++) |
|
sl2vl64.sl8[jj] = ((struct ib_smp *)out_mad)->data[jj]; |
|
*sl2vl_tbl = sl2vl64.sl64; |
|
|
|
out: |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
return err; |
|
} |
|
|
|
static void mlx4_init_sl2vl_tbl(struct mlx4_ib_dev *mdev) |
|
{ |
|
u64 sl2vl; |
|
int i; |
|
int err; |
|
|
|
for (i = 1; i <= mdev->dev->caps.num_ports; i++) { |
|
if (mdev->dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) |
|
continue; |
|
err = mlx4_ib_query_sl2vl(&mdev->ib_dev, i, &sl2vl); |
|
if (err) { |
|
pr_err("Unable to get default sl to vl mapping for port %d. Using all zeroes (%d)\n", |
|
i, err); |
|
sl2vl = 0; |
|
} |
|
atomic64_set(&mdev->sl2vl[i - 1], sl2vl); |
|
} |
|
} |
|
|
|
int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
|
u16 *pkey, int netw_view) |
|
{ |
|
struct ib_smp *in_mad = NULL; |
|
struct ib_smp *out_mad = NULL; |
|
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; |
|
int err = -ENOMEM; |
|
|
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
|
if (!in_mad || !out_mad) |
|
goto out; |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; |
|
in_mad->attr_mod = cpu_to_be32(index / 32); |
|
|
|
if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) |
|
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; |
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, |
|
in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
*pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
|
|
|
out: |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) |
|
{ |
|
return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0); |
|
} |
|
|
|
static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, |
|
struct ib_device_modify *props) |
|
{ |
|
struct mlx4_cmd_mailbox *mailbox; |
|
unsigned long flags; |
|
|
|
if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) |
|
return -EOPNOTSUPP; |
|
|
|
if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) |
|
return 0; |
|
|
|
if (mlx4_is_slave(to_mdev(ibdev)->dev)) |
|
return -EOPNOTSUPP; |
|
|
|
spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags); |
|
memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX); |
|
spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags); |
|
|
|
/* |
|
* If possible, pass node desc to FW, so it can generate |
|
* a 144 trap. If cmd fails, just ignore. |
|
*/ |
|
mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev); |
|
if (IS_ERR(mailbox)) |
|
return 0; |
|
|
|
memcpy(mailbox->buf, props->node_desc, IB_DEVICE_NODE_DESC_MAX); |
|
mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, |
|
MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); |
|
|
|
mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); |
|
|
|
return 0; |
|
} |
|
|
|
static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, |
|
u32 cap_mask) |
|
{ |
|
struct mlx4_cmd_mailbox *mailbox; |
|
int err; |
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev->dev); |
|
if (IS_ERR(mailbox)) |
|
return PTR_ERR(mailbox); |
|
|
|
if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { |
|
*(u8 *) mailbox->buf = !!reset_qkey_viols << 6; |
|
((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); |
|
} else { |
|
((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; |
|
((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); |
|
} |
|
|
|
err = mlx4_cmd(dev->dev, mailbox->dma, port, MLX4_SET_PORT_IB_OPCODE, |
|
MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, |
|
MLX4_CMD_WRAPPED); |
|
|
|
mlx4_free_cmd_mailbox(dev->dev, mailbox); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, |
|
struct ib_port_modify *props) |
|
{ |
|
struct mlx4_ib_dev *mdev = to_mdev(ibdev); |
|
u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; |
|
struct ib_port_attr attr; |
|
u32 cap_mask; |
|
int err; |
|
|
|
/* return OK if this is RoCE. CM calls ib_modify_port() regardless |
|
* of whether port link layer is ETH or IB. For ETH ports, qkey |
|
* violations and port capabilities are not meaningful. |
|
*/ |
|
if (is_eth) |
|
return 0; |
|
|
|
mutex_lock(&mdev->cap_mask_mutex); |
|
|
|
err = ib_query_port(ibdev, port, &attr); |
|
if (err) |
|
goto out; |
|
|
|
cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & |
|
~props->clr_port_cap_mask; |
|
|
|
err = mlx4_ib_SET_PORT(mdev, port, |
|
!!(mask & IB_PORT_RESET_QKEY_CNTR), |
|
cap_mask); |
|
|
|
out: |
|
mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_alloc_ucontext(struct ib_ucontext *uctx, |
|
struct ib_udata *udata) |
|
{ |
|
struct ib_device *ibdev = uctx->device; |
|
struct mlx4_ib_dev *dev = to_mdev(ibdev); |
|
struct mlx4_ib_ucontext *context = to_mucontext(uctx); |
|
struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3; |
|
struct mlx4_ib_alloc_ucontext_resp resp; |
|
int err; |
|
|
|
if (!dev->ib_active) |
|
return -EAGAIN; |
|
|
|
if (ibdev->ops.uverbs_abi_ver == |
|
MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) { |
|
resp_v3.qp_tab_size = dev->dev->caps.num_qps; |
|
resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size; |
|
resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; |
|
} else { |
|
resp.dev_caps = dev->dev->caps.userspace_caps; |
|
resp.qp_tab_size = dev->dev->caps.num_qps; |
|
resp.bf_reg_size = dev->dev->caps.bf_reg_size; |
|
resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; |
|
resp.cqe_size = dev->dev->caps.cqe_size; |
|
} |
|
|
|
err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); |
|
if (err) |
|
return err; |
|
|
|
INIT_LIST_HEAD(&context->db_page_list); |
|
mutex_init(&context->db_page_mutex); |
|
|
|
INIT_LIST_HEAD(&context->wqn_ranges_list); |
|
mutex_init(&context->wqn_ranges_mutex); |
|
|
|
if (ibdev->ops.uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) |
|
err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3)); |
|
else |
|
err = ib_copy_to_udata(udata, &resp, sizeof(resp)); |
|
|
|
if (err) { |
|
mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); |
|
return -EFAULT; |
|
} |
|
|
|
return err; |
|
} |
|
|
|
static void mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) |
|
{ |
|
struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); |
|
|
|
mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); |
|
} |
|
|
|
static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext) |
|
{ |
|
} |
|
|
|
static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) |
|
{ |
|
struct mlx4_ib_dev *dev = to_mdev(context->device); |
|
|
|
switch (vma->vm_pgoff) { |
|
case 0: |
|
return rdma_user_mmap_io(context, vma, |
|
to_mucontext(context)->uar.pfn, |
|
PAGE_SIZE, |
|
pgprot_noncached(vma->vm_page_prot), |
|
NULL); |
|
|
|
case 1: |
|
if (dev->dev->caps.bf_reg_size == 0) |
|
return -EINVAL; |
|
return rdma_user_mmap_io( |
|
context, vma, |
|
to_mucontext(context)->uar.pfn + |
|
dev->dev->caps.num_uars, |
|
PAGE_SIZE, pgprot_writecombine(vma->vm_page_prot), |
|
NULL); |
|
|
|
case 3: { |
|
struct mlx4_clock_params params; |
|
int ret; |
|
|
|
ret = mlx4_get_internal_clock_params(dev->dev, ¶ms); |
|
if (ret) |
|
return ret; |
|
|
|
return rdma_user_mmap_io( |
|
context, vma, |
|
(pci_resource_start(dev->dev->persist->pdev, |
|
params.bar) + |
|
params.offset) >> |
|
PAGE_SHIFT, |
|
PAGE_SIZE, pgprot_noncached(vma->vm_page_prot), |
|
NULL); |
|
} |
|
|
|
default: |
|
return -EINVAL; |
|
} |
|
} |
|
|
|
static int mlx4_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) |
|
{ |
|
struct mlx4_ib_pd *pd = to_mpd(ibpd); |
|
struct ib_device *ibdev = ibpd->device; |
|
int err; |
|
|
|
err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); |
|
if (err) |
|
return err; |
|
|
|
if (udata && ib_copy_to_udata(udata, &pd->pdn, sizeof(__u32))) { |
|
mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); |
|
return -EFAULT; |
|
} |
|
return 0; |
|
} |
|
|
|
static int mlx4_ib_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata) |
|
{ |
|
mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); |
|
return 0; |
|
} |
|
|
|
static int mlx4_ib_alloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata) |
|
{ |
|
struct mlx4_ib_dev *dev = to_mdev(ibxrcd->device); |
|
struct mlx4_ib_xrcd *xrcd = to_mxrcd(ibxrcd); |
|
struct ib_cq_init_attr cq_attr = {}; |
|
int err; |
|
|
|
if (!(dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) |
|
return -EOPNOTSUPP; |
|
|
|
err = mlx4_xrcd_alloc(dev->dev, &xrcd->xrcdn); |
|
if (err) |
|
return err; |
|
|
|
xrcd->pd = ib_alloc_pd(ibxrcd->device, 0); |
|
if (IS_ERR(xrcd->pd)) { |
|
err = PTR_ERR(xrcd->pd); |
|
goto err2; |
|
} |
|
|
|
cq_attr.cqe = 1; |
|
xrcd->cq = ib_create_cq(ibxrcd->device, NULL, NULL, xrcd, &cq_attr); |
|
if (IS_ERR(xrcd->cq)) { |
|
err = PTR_ERR(xrcd->cq); |
|
goto err3; |
|
} |
|
|
|
return 0; |
|
|
|
err3: |
|
ib_dealloc_pd(xrcd->pd); |
|
err2: |
|
mlx4_xrcd_free(dev->dev, xrcd->xrcdn); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata) |
|
{ |
|
ib_destroy_cq(to_mxrcd(xrcd)->cq); |
|
ib_dealloc_pd(to_mxrcd(xrcd)->pd); |
|
mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); |
|
return 0; |
|
} |
|
|
|
static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) |
|
{ |
|
struct mlx4_ib_qp *mqp = to_mqp(ibqp); |
|
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); |
|
struct mlx4_ib_gid_entry *ge; |
|
|
|
ge = kzalloc(sizeof *ge, GFP_KERNEL); |
|
if (!ge) |
|
return -ENOMEM; |
|
|
|
ge->gid = *gid; |
|
if (mlx4_ib_add_mc(mdev, mqp, gid)) { |
|
ge->port = mqp->port; |
|
ge->added = 1; |
|
} |
|
|
|
mutex_lock(&mqp->mutex); |
|
list_add_tail(&ge->list, &mqp->gid_list); |
|
mutex_unlock(&mqp->mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev, |
|
struct mlx4_ib_counters *ctr_table) |
|
{ |
|
struct counter_index *counter, *tmp_count; |
|
|
|
mutex_lock(&ctr_table->mutex); |
|
list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list, |
|
list) { |
|
if (counter->allocated) |
|
mlx4_counter_free(ibdev->dev, counter->index); |
|
list_del(&counter->list); |
|
kfree(counter); |
|
} |
|
mutex_unlock(&ctr_table->mutex); |
|
} |
|
|
|
int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, |
|
union ib_gid *gid) |
|
{ |
|
struct net_device *ndev; |
|
int ret = 0; |
|
|
|
if (!mqp->port) |
|
return 0; |
|
|
|
spin_lock_bh(&mdev->iboe.lock); |
|
ndev = mdev->iboe.netdevs[mqp->port - 1]; |
|
if (ndev) |
|
dev_hold(ndev); |
|
spin_unlock_bh(&mdev->iboe.lock); |
|
|
|
if (ndev) { |
|
ret = 1; |
|
dev_put(ndev); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
struct mlx4_ib_steering { |
|
struct list_head list; |
|
struct mlx4_flow_reg_id reg_id; |
|
union ib_gid gid; |
|
}; |
|
|
|
#define LAST_ETH_FIELD vlan_tag |
|
#define LAST_IB_FIELD sl |
|
#define LAST_IPV4_FIELD dst_ip |
|
#define LAST_TCP_UDP_FIELD src_port |
|
|
|
/* Field is the last supported field */ |
|
#define FIELDS_NOT_SUPPORTED(filter, field)\ |
|
memchr_inv((void *)&filter.field +\ |
|
sizeof(filter.field), 0,\ |
|
sizeof(filter) -\ |
|
offsetof(typeof(filter), field) -\ |
|
sizeof(filter.field)) |
|
|
|
static int parse_flow_attr(struct mlx4_dev *dev, |
|
u32 qp_num, |
|
union ib_flow_spec *ib_spec, |
|
struct _rule_hw *mlx4_spec) |
|
{ |
|
enum mlx4_net_trans_rule_id type; |
|
|
|
switch (ib_spec->type) { |
|
case IB_FLOW_SPEC_ETH: |
|
if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD)) |
|
return -ENOTSUPP; |
|
|
|
type = MLX4_NET_TRANS_RULE_ID_ETH; |
|
memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac, |
|
ETH_ALEN); |
|
memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac, |
|
ETH_ALEN); |
|
mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag; |
|
mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag; |
|
break; |
|
case IB_FLOW_SPEC_IB: |
|
if (FIELDS_NOT_SUPPORTED(ib_spec->ib.mask, LAST_IB_FIELD)) |
|
return -ENOTSUPP; |
|
|
|
type = MLX4_NET_TRANS_RULE_ID_IB; |
|
mlx4_spec->ib.l3_qpn = |
|
cpu_to_be32(qp_num); |
|
mlx4_spec->ib.qpn_mask = |
|
cpu_to_be32(MLX4_IB_FLOW_QPN_MASK); |
|
break; |
|
|
|
|
|
case IB_FLOW_SPEC_IPV4: |
|
if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD)) |
|
return -ENOTSUPP; |
|
|
|
type = MLX4_NET_TRANS_RULE_ID_IPV4; |
|
mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip; |
|
mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip; |
|
mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip; |
|
mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip; |
|
break; |
|
|
|
case IB_FLOW_SPEC_TCP: |
|
case IB_FLOW_SPEC_UDP: |
|
if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, LAST_TCP_UDP_FIELD)) |
|
return -ENOTSUPP; |
|
|
|
type = ib_spec->type == IB_FLOW_SPEC_TCP ? |
|
MLX4_NET_TRANS_RULE_ID_TCP : |
|
MLX4_NET_TRANS_RULE_ID_UDP; |
|
mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port; |
|
mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port; |
|
mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port; |
|
mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port; |
|
break; |
|
|
|
default: |
|
return -EINVAL; |
|
} |
|
if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 || |
|
mlx4_hw_rule_sz(dev, type) < 0) |
|
return -EINVAL; |
|
mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type)); |
|
mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2; |
|
return mlx4_hw_rule_sz(dev, type); |
|
} |
|
|
|
struct default_rules { |
|
__u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS]; |
|
__u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS]; |
|
__u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS]; |
|
__u8 link_layer; |
|
}; |
|
static const struct default_rules default_table[] = { |
|
{ |
|
.mandatory_fields = {IB_FLOW_SPEC_IPV4}, |
|
.mandatory_not_fields = {IB_FLOW_SPEC_ETH}, |
|
.rules_create_list = {IB_FLOW_SPEC_IB}, |
|
.link_layer = IB_LINK_LAYER_INFINIBAND |
|
} |
|
}; |
|
|
|
static int __mlx4_ib_default_rules_match(struct ib_qp *qp, |
|
struct ib_flow_attr *flow_attr) |
|
{ |
|
int i, j, k; |
|
void *ib_flow; |
|
const struct default_rules *pdefault_rules = default_table; |
|
u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port); |
|
|
|
for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) { |
|
__u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS]; |
|
memset(&field_types, 0, sizeof(field_types)); |
|
|
|
if (link_layer != pdefault_rules->link_layer) |
|
continue; |
|
|
|
ib_flow = flow_attr + 1; |
|
/* we assume the specs are sorted */ |
|
for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS && |
|
j < flow_attr->num_of_specs; k++) { |
|
union ib_flow_spec *current_flow = |
|
(union ib_flow_spec *)ib_flow; |
|
|
|
/* same layer but different type */ |
|
if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) == |
|
(pdefault_rules->mandatory_fields[k] & |
|
IB_FLOW_SPEC_LAYER_MASK)) && |
|
(current_flow->type != |
|
pdefault_rules->mandatory_fields[k])) |
|
goto out; |
|
|
|
/* same layer, try match next one */ |
|
if (current_flow->type == |
|
pdefault_rules->mandatory_fields[k]) { |
|
j++; |
|
ib_flow += |
|
((union ib_flow_spec *)ib_flow)->size; |
|
} |
|
} |
|
|
|
ib_flow = flow_attr + 1; |
|
for (j = 0; j < flow_attr->num_of_specs; |
|
j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size) |
|
for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++) |
|
/* same layer and same type */ |
|
if (((union ib_flow_spec *)ib_flow)->type == |
|
pdefault_rules->mandatory_not_fields[k]) |
|
goto out; |
|
|
|
return i; |
|
} |
|
out: |
|
return -1; |
|
} |
|
|
|
static int __mlx4_ib_create_default_rules( |
|
struct mlx4_ib_dev *mdev, |
|
struct ib_qp *qp, |
|
const struct default_rules *pdefault_rules, |
|
struct _rule_hw *mlx4_spec) { |
|
int size = 0; |
|
int i; |
|
|
|
for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) { |
|
union ib_flow_spec ib_spec = {}; |
|
int ret; |
|
|
|
switch (pdefault_rules->rules_create_list[i]) { |
|
case 0: |
|
/* no rule */ |
|
continue; |
|
case IB_FLOW_SPEC_IB: |
|
ib_spec.type = IB_FLOW_SPEC_IB; |
|
ib_spec.size = sizeof(struct ib_flow_spec_ib); |
|
|
|
break; |
|
default: |
|
/* invalid rule */ |
|
return -EINVAL; |
|
} |
|
/* We must put empty rule, qpn is being ignored */ |
|
ret = parse_flow_attr(mdev->dev, 0, &ib_spec, |
|
mlx4_spec); |
|
if (ret < 0) { |
|
pr_info("invalid parsing\n"); |
|
return -EINVAL; |
|
} |
|
|
|
mlx4_spec = (void *)mlx4_spec + ret; |
|
size += ret; |
|
} |
|
return size; |
|
} |
|
|
|
static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr, |
|
int domain, |
|
enum mlx4_net_trans_promisc_mode flow_type, |
|
u64 *reg_id) |
|
{ |
|
int ret, i; |
|
int size = 0; |
|
void *ib_flow; |
|
struct mlx4_ib_dev *mdev = to_mdev(qp->device); |
|
struct mlx4_cmd_mailbox *mailbox; |
|
struct mlx4_net_trans_rule_hw_ctrl *ctrl; |
|
int default_flow; |
|
|
|
if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) { |
|
pr_err("Invalid priority value %d\n", flow_attr->priority); |
|
return -EINVAL; |
|
} |
|
|
|
if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0) |
|
return -EINVAL; |
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); |
|
if (IS_ERR(mailbox)) |
|
return PTR_ERR(mailbox); |
|
ctrl = mailbox->buf; |
|
|
|
ctrl->prio = cpu_to_be16(domain | flow_attr->priority); |
|
ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type); |
|
ctrl->port = flow_attr->port; |
|
ctrl->qpn = cpu_to_be32(qp->qp_num); |
|
|
|
ib_flow = flow_attr + 1; |
|
size += sizeof(struct mlx4_net_trans_rule_hw_ctrl); |
|
/* Add default flows */ |
|
default_flow = __mlx4_ib_default_rules_match(qp, flow_attr); |
|
if (default_flow >= 0) { |
|
ret = __mlx4_ib_create_default_rules( |
|
mdev, qp, default_table + default_flow, |
|
mailbox->buf + size); |
|
if (ret < 0) { |
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox); |
|
return -EINVAL; |
|
} |
|
size += ret; |
|
} |
|
for (i = 0; i < flow_attr->num_of_specs; i++) { |
|
ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow, |
|
mailbox->buf + size); |
|
if (ret < 0) { |
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox); |
|
return -EINVAL; |
|
} |
|
ib_flow += ((union ib_flow_spec *) ib_flow)->size; |
|
size += ret; |
|
} |
|
|
|
if (mlx4_is_master(mdev->dev) && flow_type == MLX4_FS_REGULAR && |
|
flow_attr->num_of_specs == 1) { |
|
struct _rule_hw *rule_header = (struct _rule_hw *)(ctrl + 1); |
|
enum ib_flow_spec_type header_spec = |
|
((union ib_flow_spec *)(flow_attr + 1))->type; |
|
|
|
if (header_spec == IB_FLOW_SPEC_ETH) |
|
mlx4_handle_eth_header_mcast_prio(ctrl, rule_header); |
|
} |
|
|
|
ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0, |
|
MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, |
|
MLX4_CMD_NATIVE); |
|
if (ret == -ENOMEM) |
|
pr_err("mcg table is full. Fail to register network rule.\n"); |
|
else if (ret == -ENXIO) |
|
pr_err("Device managed flow steering is disabled. Fail to register network rule.\n"); |
|
else if (ret) |
|
pr_err("Invalid argument. Fail to register network rule.\n"); |
|
|
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox); |
|
return ret; |
|
} |
|
|
|
static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id) |
|
{ |
|
int err; |
|
err = mlx4_cmd(dev, reg_id, 0, 0, |
|
MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, |
|
MLX4_CMD_NATIVE); |
|
if (err) |
|
pr_err("Fail to detach network rule. registration id = 0x%llx\n", |
|
reg_id); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr, |
|
u64 *reg_id) |
|
{ |
|
void *ib_flow; |
|
union ib_flow_spec *ib_spec; |
|
struct mlx4_dev *dev = to_mdev(qp->device)->dev; |
|
int err = 0; |
|
|
|
if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || |
|
dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) |
|
return 0; /* do nothing */ |
|
|
|
ib_flow = flow_attr + 1; |
|
ib_spec = (union ib_flow_spec *)ib_flow; |
|
|
|
if (ib_spec->type != IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1) |
|
return 0; /* do nothing */ |
|
|
|
err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac, |
|
flow_attr->port, qp->qp_num, |
|
MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff), |
|
reg_id); |
|
return err; |
|
} |
|
|
|
static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev, |
|
struct ib_flow_attr *flow_attr, |
|
enum mlx4_net_trans_promisc_mode *type) |
|
{ |
|
int err = 0; |
|
|
|
if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER) || |
|
(dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) || |
|
(flow_attr->num_of_specs > 1) || (flow_attr->priority != 0)) { |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
if (flow_attr->num_of_specs == 0) { |
|
type[0] = MLX4_FS_MC_SNIFFER; |
|
type[1] = MLX4_FS_UC_SNIFFER; |
|
} else { |
|
union ib_flow_spec *ib_spec; |
|
|
|
ib_spec = (union ib_flow_spec *)(flow_attr + 1); |
|
if (ib_spec->type != IB_FLOW_SPEC_ETH) |
|
return -EINVAL; |
|
|
|
/* if all is zero than MC and UC */ |
|
if (is_zero_ether_addr(ib_spec->eth.mask.dst_mac)) { |
|
type[0] = MLX4_FS_MC_SNIFFER; |
|
type[1] = MLX4_FS_UC_SNIFFER; |
|
} else { |
|
u8 mac[ETH_ALEN] = {ib_spec->eth.mask.dst_mac[0] ^ 0x01, |
|
ib_spec->eth.mask.dst_mac[1], |
|
ib_spec->eth.mask.dst_mac[2], |
|
ib_spec->eth.mask.dst_mac[3], |
|
ib_spec->eth.mask.dst_mac[4], |
|
ib_spec->eth.mask.dst_mac[5]}; |
|
|
|
/* Above xor was only on MC bit, non empty mask is valid |
|
* only if this bit is set and rest are zero. |
|
*/ |
|
if (!is_zero_ether_addr(&mac[0])) |
|
return -EINVAL; |
|
|
|
if (is_multicast_ether_addr(ib_spec->eth.val.dst_mac)) |
|
type[0] = MLX4_FS_MC_SNIFFER; |
|
else |
|
type[0] = MLX4_FS_UC_SNIFFER; |
|
} |
|
} |
|
|
|
return err; |
|
} |
|
|
|
static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, |
|
struct ib_flow_attr *flow_attr, |
|
struct ib_udata *udata) |
|
{ |
|
int err = 0, i = 0, j = 0; |
|
struct mlx4_ib_flow *mflow; |
|
enum mlx4_net_trans_promisc_mode type[2]; |
|
struct mlx4_dev *dev = (to_mdev(qp->device))->dev; |
|
int is_bonded = mlx4_is_bonded(dev); |
|
|
|
if (!rdma_is_port_valid(qp->device, flow_attr->port)) |
|
return ERR_PTR(-EINVAL); |
|
|
|
if (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP) |
|
return ERR_PTR(-EOPNOTSUPP); |
|
|
|
if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) && |
|
(flow_attr->type != IB_FLOW_ATTR_NORMAL)) |
|
return ERR_PTR(-EOPNOTSUPP); |
|
|
|
if (udata && |
|
udata->inlen && !ib_is_udata_cleared(udata, 0, udata->inlen)) |
|
return ERR_PTR(-EOPNOTSUPP); |
|
|
|
memset(type, 0, sizeof(type)); |
|
|
|
mflow = kzalloc(sizeof(*mflow), GFP_KERNEL); |
|
if (!mflow) { |
|
err = -ENOMEM; |
|
goto err_free; |
|
} |
|
|
|
switch (flow_attr->type) { |
|
case IB_FLOW_ATTR_NORMAL: |
|
/* If dont trap flag (continue match) is set, under specific |
|
* condition traffic be replicated to given qp, |
|
* without stealing it |
|
*/ |
|
if (unlikely(flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP)) { |
|
err = mlx4_ib_add_dont_trap_rule(dev, |
|
flow_attr, |
|
type); |
|
if (err) |
|
goto err_free; |
|
} else { |
|
type[0] = MLX4_FS_REGULAR; |
|
} |
|
break; |
|
|
|
case IB_FLOW_ATTR_ALL_DEFAULT: |
|
type[0] = MLX4_FS_ALL_DEFAULT; |
|
break; |
|
|
|
case IB_FLOW_ATTR_MC_DEFAULT: |
|
type[0] = MLX4_FS_MC_DEFAULT; |
|
break; |
|
|
|
case IB_FLOW_ATTR_SNIFFER: |
|
type[0] = MLX4_FS_MIRROR_RX_PORT; |
|
type[1] = MLX4_FS_MIRROR_SX_PORT; |
|
break; |
|
|
|
default: |
|
err = -EINVAL; |
|
goto err_free; |
|
} |
|
|
|
while (i < ARRAY_SIZE(type) && type[i]) { |
|
err = __mlx4_ib_create_flow(qp, flow_attr, MLX4_DOMAIN_UVERBS, |
|
type[i], &mflow->reg_id[i].id); |
|
if (err) |
|
goto err_create_flow; |
|
if (is_bonded) { |
|
/* Application always sees one port so the mirror rule |
|
* must be on port #2 |
|
*/ |
|
flow_attr->port = 2; |
|
err = __mlx4_ib_create_flow(qp, flow_attr, |
|
MLX4_DOMAIN_UVERBS, type[j], |
|
&mflow->reg_id[j].mirror); |
|
flow_attr->port = 1; |
|
if (err) |
|
goto err_create_flow; |
|
j++; |
|
} |
|
|
|
i++; |
|
} |
|
|
|
if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) { |
|
err = mlx4_ib_tunnel_steer_add(qp, flow_attr, |
|
&mflow->reg_id[i].id); |
|
if (err) |
|
goto err_create_flow; |
|
|
|
if (is_bonded) { |
|
flow_attr->port = 2; |
|
err = mlx4_ib_tunnel_steer_add(qp, flow_attr, |
|
&mflow->reg_id[j].mirror); |
|
flow_attr->port = 1; |
|
if (err) |
|
goto err_create_flow; |
|
j++; |
|
} |
|
/* function to create mirror rule */ |
|
i++; |
|
} |
|
|
|
return &mflow->ibflow; |
|
|
|
err_create_flow: |
|
while (i) { |
|
(void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev, |
|
mflow->reg_id[i].id); |
|
i--; |
|
} |
|
|
|
while (j) { |
|
(void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev, |
|
mflow->reg_id[j].mirror); |
|
j--; |
|
} |
|
err_free: |
|
kfree(mflow); |
|
return ERR_PTR(err); |
|
} |
|
|
|
static int mlx4_ib_destroy_flow(struct ib_flow *flow_id) |
|
{ |
|
int err, ret = 0; |
|
int i = 0; |
|
struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device); |
|
struct mlx4_ib_flow *mflow = to_mflow(flow_id); |
|
|
|
while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) { |
|
err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id); |
|
if (err) |
|
ret = err; |
|
if (mflow->reg_id[i].mirror) { |
|
err = __mlx4_ib_destroy_flow(mdev->dev, |
|
mflow->reg_id[i].mirror); |
|
if (err) |
|
ret = err; |
|
} |
|
i++; |
|
} |
|
|
|
kfree(mflow); |
|
return ret; |
|
} |
|
|
|
static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
|
{ |
|
int err; |
|
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); |
|
struct mlx4_dev *dev = mdev->dev; |
|
struct mlx4_ib_qp *mqp = to_mqp(ibqp); |
|
struct mlx4_ib_steering *ib_steering = NULL; |
|
enum mlx4_protocol prot = MLX4_PROT_IB_IPV6; |
|
struct mlx4_flow_reg_id reg_id; |
|
|
|
if (mdev->dev->caps.steering_mode == |
|
MLX4_STEERING_MODE_DEVICE_MANAGED) { |
|
ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL); |
|
if (!ib_steering) |
|
return -ENOMEM; |
|
} |
|
|
|
err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, |
|
!!(mqp->flags & |
|
MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), |
|
prot, ®_id.id); |
|
if (err) { |
|
pr_err("multicast attach op failed, err %d\n", err); |
|
goto err_malloc; |
|
} |
|
|
|
reg_id.mirror = 0; |
|
if (mlx4_is_bonded(dev)) { |
|
err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, |
|
(mqp->port == 1) ? 2 : 1, |
|
!!(mqp->flags & |
|
MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), |
|
prot, ®_id.mirror); |
|
if (err) |
|
goto err_add; |
|
} |
|
|
|
err = add_gid_entry(ibqp, gid); |
|
if (err) |
|
goto err_add; |
|
|
|
if (ib_steering) { |
|
memcpy(ib_steering->gid.raw, gid->raw, 16); |
|
ib_steering->reg_id = reg_id; |
|
mutex_lock(&mqp->mutex); |
|
list_add(&ib_steering->list, &mqp->steering_rules); |
|
mutex_unlock(&mqp->mutex); |
|
} |
|
return 0; |
|
|
|
err_add: |
|
mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, |
|
prot, reg_id.id); |
|
if (reg_id.mirror) |
|
mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, |
|
prot, reg_id.mirror); |
|
err_malloc: |
|
kfree(ib_steering); |
|
|
|
return err; |
|
} |
|
|
|
static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw) |
|
{ |
|
struct mlx4_ib_gid_entry *ge; |
|
struct mlx4_ib_gid_entry *tmp; |
|
struct mlx4_ib_gid_entry *ret = NULL; |
|
|
|
list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) { |
|
if (!memcmp(raw, ge->gid.raw, 16)) { |
|
ret = ge; |
|
break; |
|
} |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
|
{ |
|
int err; |
|
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); |
|
struct mlx4_dev *dev = mdev->dev; |
|
struct mlx4_ib_qp *mqp = to_mqp(ibqp); |
|
struct net_device *ndev; |
|
struct mlx4_ib_gid_entry *ge; |
|
struct mlx4_flow_reg_id reg_id = {0, 0}; |
|
enum mlx4_protocol prot = MLX4_PROT_IB_IPV6; |
|
|
|
if (mdev->dev->caps.steering_mode == |
|
MLX4_STEERING_MODE_DEVICE_MANAGED) { |
|
struct mlx4_ib_steering *ib_steering; |
|
|
|
mutex_lock(&mqp->mutex); |
|
list_for_each_entry(ib_steering, &mqp->steering_rules, list) { |
|
if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) { |
|
list_del(&ib_steering->list); |
|
break; |
|
} |
|
} |
|
mutex_unlock(&mqp->mutex); |
|
if (&ib_steering->list == &mqp->steering_rules) { |
|
pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n"); |
|
return -EINVAL; |
|
} |
|
reg_id = ib_steering->reg_id; |
|
kfree(ib_steering); |
|
} |
|
|
|
err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, |
|
prot, reg_id.id); |
|
if (err) |
|
return err; |
|
|
|
if (mlx4_is_bonded(dev)) { |
|
err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, |
|
prot, reg_id.mirror); |
|
if (err) |
|
return err; |
|
} |
|
|
|
mutex_lock(&mqp->mutex); |
|
ge = find_gid_entry(mqp, gid->raw); |
|
if (ge) { |
|
spin_lock_bh(&mdev->iboe.lock); |
|
ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; |
|
if (ndev) |
|
dev_hold(ndev); |
|
spin_unlock_bh(&mdev->iboe.lock); |
|
if (ndev) |
|
dev_put(ndev); |
|
list_del(&ge->list); |
|
kfree(ge); |
|
} else |
|
pr_warn("could not find mgid entry\n"); |
|
|
|
mutex_unlock(&mqp->mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static int init_node_data(struct mlx4_ib_dev *dev) |
|
{ |
|
struct ib_smp *in_mad = NULL; |
|
struct ib_smp *out_mad = NULL; |
|
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; |
|
int err = -ENOMEM; |
|
|
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
|
if (!in_mad || !out_mad) |
|
goto out; |
|
|
|
init_query_mad(in_mad); |
|
in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; |
|
if (mlx4_is_master(dev->dev)) |
|
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; |
|
|
|
err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); |
|
|
|
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
|
|
|
err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); |
|
if (err) |
|
goto out; |
|
|
|
dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
|
memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); |
|
|
|
out: |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
return err; |
|
} |
|
|
|
static ssize_t hca_type_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct mlx4_ib_dev *dev = |
|
rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev); |
|
|
|
return sysfs_emit(buf, "MT%d\n", dev->dev->persist->pdev->device); |
|
} |
|
static DEVICE_ATTR_RO(hca_type); |
|
|
|
static ssize_t hw_rev_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct mlx4_ib_dev *dev = |
|
rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev); |
|
|
|
return sysfs_emit(buf, "%x\n", dev->dev->rev_id); |
|
} |
|
static DEVICE_ATTR_RO(hw_rev); |
|
|
|
static ssize_t board_id_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct mlx4_ib_dev *dev = |
|
rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev); |
|
|
|
return sysfs_emit(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id); |
|
} |
|
static DEVICE_ATTR_RO(board_id); |
|
|
|
static struct attribute *mlx4_class_attributes[] = { |
|
&dev_attr_hw_rev.attr, |
|
&dev_attr_hca_type.attr, |
|
&dev_attr_board_id.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group mlx4_attr_group = { |
|
.attrs = mlx4_class_attributes, |
|
}; |
|
|
|
struct diag_counter { |
|
const char *name; |
|
u32 offset; |
|
}; |
|
|
|
#define DIAG_COUNTER(_name, _offset) \ |
|
{ .name = #_name, .offset = _offset } |
|
|
|
static const struct diag_counter diag_basic[] = { |
|
DIAG_COUNTER(rq_num_lle, 0x00), |
|
DIAG_COUNTER(sq_num_lle, 0x04), |
|
DIAG_COUNTER(rq_num_lqpoe, 0x08), |
|
DIAG_COUNTER(sq_num_lqpoe, 0x0C), |
|
DIAG_COUNTER(rq_num_lpe, 0x18), |
|
DIAG_COUNTER(sq_num_lpe, 0x1C), |
|
DIAG_COUNTER(rq_num_wrfe, 0x20), |
|
DIAG_COUNTER(sq_num_wrfe, 0x24), |
|
DIAG_COUNTER(sq_num_mwbe, 0x2C), |
|
DIAG_COUNTER(sq_num_bre, 0x34), |
|
DIAG_COUNTER(sq_num_rire, 0x44), |
|
DIAG_COUNTER(rq_num_rire, 0x48), |
|
DIAG_COUNTER(sq_num_rae, 0x4C), |
|
DIAG_COUNTER(rq_num_rae, 0x50), |
|
DIAG_COUNTER(sq_num_roe, 0x54), |
|
DIAG_COUNTER(sq_num_tree, 0x5C), |
|
DIAG_COUNTER(sq_num_rree, 0x64), |
|
DIAG_COUNTER(rq_num_rnr, 0x68), |
|
DIAG_COUNTER(sq_num_rnr, 0x6C), |
|
DIAG_COUNTER(rq_num_oos, 0x100), |
|
DIAG_COUNTER(sq_num_oos, 0x104), |
|
}; |
|
|
|
static const struct diag_counter diag_ext[] = { |
|
DIAG_COUNTER(rq_num_dup, 0x130), |
|
DIAG_COUNTER(sq_num_to, 0x134), |
|
}; |
|
|
|
static const struct diag_counter diag_device_only[] = { |
|
DIAG_COUNTER(num_cqovf, 0x1A0), |
|
DIAG_COUNTER(rq_num_udsdprd, 0x118), |
|
}; |
|
|
|
static struct rdma_hw_stats *mlx4_ib_alloc_hw_stats(struct ib_device *ibdev, |
|
u8 port_num) |
|
{ |
|
struct mlx4_ib_dev *dev = to_mdev(ibdev); |
|
struct mlx4_ib_diag_counters *diag = dev->diag_counters; |
|
|
|
if (!diag[!!port_num].name) |
|
return NULL; |
|
|
|
return rdma_alloc_hw_stats_struct(diag[!!port_num].name, |
|
diag[!!port_num].num_counters, |
|
RDMA_HW_STATS_DEFAULT_LIFESPAN); |
|
} |
|
|
|
static int mlx4_ib_get_hw_stats(struct ib_device *ibdev, |
|
struct rdma_hw_stats *stats, |
|
u8 port, int index) |
|
{ |
|
struct mlx4_ib_dev *dev = to_mdev(ibdev); |
|
struct mlx4_ib_diag_counters *diag = dev->diag_counters; |
|
u32 hw_value[ARRAY_SIZE(diag_device_only) + |
|
ARRAY_SIZE(diag_ext) + ARRAY_SIZE(diag_basic)] = {}; |
|
int ret; |
|
int i; |
|
|
|
ret = mlx4_query_diag_counters(dev->dev, |
|
MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS, |
|
diag[!!port].offset, hw_value, |
|
diag[!!port].num_counters, port); |
|
|
|
if (ret) |
|
return ret; |
|
|
|
for (i = 0; i < diag[!!port].num_counters; i++) |
|
stats->value[i] = hw_value[i]; |
|
|
|
return diag[!!port].num_counters; |
|
} |
|
|
|
static int __mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev, |
|
const char ***name, |
|
u32 **offset, |
|
u32 *num, |
|
bool port) |
|
{ |
|
u32 num_counters; |
|
|
|
num_counters = ARRAY_SIZE(diag_basic); |
|
|
|
if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) |
|
num_counters += ARRAY_SIZE(diag_ext); |
|
|
|
if (!port) |
|
num_counters += ARRAY_SIZE(diag_device_only); |
|
|
|
*name = kcalloc(num_counters, sizeof(**name), GFP_KERNEL); |
|
if (!*name) |
|
return -ENOMEM; |
|
|
|
*offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL); |
|
if (!*offset) |
|
goto err_name; |
|
|
|
*num = num_counters; |
|
|
|
return 0; |
|
|
|
err_name: |
|
kfree(*name); |
|
return -ENOMEM; |
|
} |
|
|
|
static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev, |
|
const char **name, |
|
u32 *offset, |
|
bool port) |
|
{ |
|
int i; |
|
int j; |
|
|
|
for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) { |
|
name[i] = diag_basic[i].name; |
|
offset[i] = diag_basic[i].offset; |
|
} |
|
|
|
if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) { |
|
for (i = 0; i < ARRAY_SIZE(diag_ext); i++, j++) { |
|
name[j] = diag_ext[i].name; |
|
offset[j] = diag_ext[i].offset; |
|
} |
|
} |
|
|
|
if (!port) { |
|
for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) { |
|
name[j] = diag_device_only[i].name; |
|
offset[j] = diag_device_only[i].offset; |
|
} |
|
} |
|
} |
|
|
|
static const struct ib_device_ops mlx4_ib_hw_stats_ops = { |
|
.alloc_hw_stats = mlx4_ib_alloc_hw_stats, |
|
.get_hw_stats = mlx4_ib_get_hw_stats, |
|
}; |
|
|
|
static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev) |
|
{ |
|
struct mlx4_ib_diag_counters *diag = ibdev->diag_counters; |
|
int i; |
|
int ret; |
|
bool per_port = !!(ibdev->dev->caps.flags2 & |
|
MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT); |
|
|
|
if (mlx4_is_slave(ibdev->dev)) |
|
return 0; |
|
|
|
for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { |
|
/* i == 1 means we are building port counters */ |
|
if (i && !per_port) |
|
continue; |
|
|
|
ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].name, |
|
&diag[i].offset, |
|
&diag[i].num_counters, i); |
|
if (ret) |
|
goto err_alloc; |
|
|
|
mlx4_ib_fill_diag_counters(ibdev, diag[i].name, |
|
diag[i].offset, i); |
|
} |
|
|
|
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_hw_stats_ops); |
|
|
|
return 0; |
|
|
|
err_alloc: |
|
if (i) { |
|
kfree(diag[i - 1].name); |
|
kfree(diag[i - 1].offset); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static void mlx4_ib_diag_cleanup(struct mlx4_ib_dev *ibdev) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) { |
|
kfree(ibdev->diag_counters[i].offset); |
|
kfree(ibdev->diag_counters[i].name); |
|
} |
|
} |
|
|
|
#define MLX4_IB_INVALID_MAC ((u64)-1) |
|
static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev, |
|
struct net_device *dev, |
|
int port) |
|
{ |
|
u64 new_smac = 0; |
|
u64 release_mac = MLX4_IB_INVALID_MAC; |
|
struct mlx4_ib_qp *qp; |
|
|
|
new_smac = mlx4_mac_to_u64(dev->dev_addr); |
|
atomic64_set(&ibdev->iboe.mac[port - 1], new_smac); |
|
|
|
/* no need for update QP1 and mac registration in non-SRIOV */ |
|
if (!mlx4_is_mfunc(ibdev->dev)) |
|
return; |
|
|
|
mutex_lock(&ibdev->qp1_proxy_lock[port - 1]); |
|
qp = ibdev->qp1_proxy[port - 1]; |
|
if (qp) { |
|
int new_smac_index; |
|
u64 old_smac; |
|
struct mlx4_update_qp_params update_params; |
|
|
|
mutex_lock(&qp->mutex); |
|
old_smac = qp->pri.smac; |
|
if (new_smac == old_smac) |
|
goto unlock; |
|
|
|
new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac); |
|
|
|
if (new_smac_index < 0) |
|
goto unlock; |
|
|
|
update_params.smac_index = new_smac_index; |
|
if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC, |
|
&update_params)) { |
|
release_mac = new_smac; |
|
goto unlock; |
|
} |
|
/* if old port was zero, no mac was yet registered for this QP */ |
|
if (qp->pri.smac_port) |
|
release_mac = old_smac; |
|
qp->pri.smac = new_smac; |
|
qp->pri.smac_port = port; |
|
qp->pri.smac_index = new_smac_index; |
|
} |
|
|
|
unlock: |
|
if (release_mac != MLX4_IB_INVALID_MAC) |
|
mlx4_unregister_mac(ibdev->dev, port, release_mac); |
|
if (qp) |
|
mutex_unlock(&qp->mutex); |
|
mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]); |
|
} |
|
|
|
static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, |
|
struct net_device *dev, |
|
unsigned long event) |
|
|
|
{ |
|
struct mlx4_ib_iboe *iboe; |
|
int update_qps_port = -1; |
|
int port; |
|
|
|
ASSERT_RTNL(); |
|
|
|
iboe = &ibdev->iboe; |
|
|
|
spin_lock_bh(&iboe->lock); |
|
mlx4_foreach_ib_transport_port(port, ibdev->dev) { |
|
|
|
iboe->netdevs[port - 1] = |
|
mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); |
|
|
|
if (dev == iboe->netdevs[port - 1] && |
|
(event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER || |
|
event == NETDEV_UP || event == NETDEV_CHANGE)) |
|
update_qps_port = port; |
|
|
|
if (dev == iboe->netdevs[port - 1] && |
|
(event == NETDEV_UP || event == NETDEV_DOWN)) { |
|
enum ib_port_state port_state; |
|
struct ib_event ibev = { }; |
|
|
|
if (ib_get_cached_port_state(&ibdev->ib_dev, port, |
|
&port_state)) |
|
continue; |
|
|
|
if (event == NETDEV_UP && |
|
(port_state != IB_PORT_ACTIVE || |
|
iboe->last_port_state[port - 1] != IB_PORT_DOWN)) |
|
continue; |
|
if (event == NETDEV_DOWN && |
|
(port_state != IB_PORT_DOWN || |
|
iboe->last_port_state[port - 1] != IB_PORT_ACTIVE)) |
|
continue; |
|
iboe->last_port_state[port - 1] = port_state; |
|
|
|
ibev.device = &ibdev->ib_dev; |
|
ibev.element.port_num = port; |
|
ibev.event = event == NETDEV_UP ? IB_EVENT_PORT_ACTIVE : |
|
IB_EVENT_PORT_ERR; |
|
ib_dispatch_event(&ibev); |
|
} |
|
|
|
} |
|
spin_unlock_bh(&iboe->lock); |
|
|
|
if (update_qps_port > 0) |
|
mlx4_ib_update_qps(ibdev, dev, update_qps_port); |
|
} |
|
|
|
static int mlx4_ib_netdev_event(struct notifier_block *this, |
|
unsigned long event, void *ptr) |
|
{ |
|
struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
|
struct mlx4_ib_dev *ibdev; |
|
|
|
if (!net_eq(dev_net(dev), &init_net)) |
|
return NOTIFY_DONE; |
|
|
|
ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); |
|
mlx4_ib_scan_netdevs(ibdev, dev, event); |
|
|
|
return NOTIFY_DONE; |
|
} |
|
|
|
static void init_pkeys(struct mlx4_ib_dev *ibdev) |
|
{ |
|
int port; |
|
int slave; |
|
int i; |
|
|
|
if (mlx4_is_master(ibdev->dev)) { |
|
for (slave = 0; slave <= ibdev->dev->persist->num_vfs; |
|
++slave) { |
|
for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { |
|
for (i = 0; |
|
i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; |
|
++i) { |
|
ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] = |
|
/* master has the identity virt2phys pkey mapping */ |
|
(slave == mlx4_master_func_num(ibdev->dev) || !i) ? i : |
|
ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1; |
|
mlx4_sync_pkey_table(ibdev->dev, slave, port, i, |
|
ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]); |
|
} |
|
} |
|
} |
|
/* initialize pkey cache */ |
|
for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { |
|
for (i = 0; |
|
i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; |
|
++i) |
|
ibdev->pkeys.phys_pkey_cache[port-1][i] = |
|
(i) ? 0 : 0xFFFF; |
|
} |
|
} |
|
} |
|
|
|
static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) |
|
{ |
|
int i, j, eq = 0, total_eqs = 0; |
|
|
|
ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors, |
|
sizeof(ibdev->eq_table[0]), GFP_KERNEL); |
|
if (!ibdev->eq_table) |
|
return; |
|
|
|
for (i = 1; i <= dev->caps.num_ports; i++) { |
|
for (j = 0; j < mlx4_get_eqs_per_port(dev, i); |
|
j++, total_eqs++) { |
|
if (i > 1 && mlx4_is_eq_shared(dev, total_eqs)) |
|
continue; |
|
ibdev->eq_table[eq] = total_eqs; |
|
if (!mlx4_assign_eq(dev, i, |
|
&ibdev->eq_table[eq])) |
|
eq++; |
|
else |
|
ibdev->eq_table[eq] = -1; |
|
} |
|
} |
|
|
|
for (i = eq; i < dev->caps.num_comp_vectors; |
|
ibdev->eq_table[i++] = -1) |
|
; |
|
|
|
/* Advertise the new number of EQs to clients */ |
|
ibdev->ib_dev.num_comp_vectors = eq; |
|
} |
|
|
|
static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) |
|
{ |
|
int i; |
|
int total_eqs = ibdev->ib_dev.num_comp_vectors; |
|
|
|
/* no eqs were allocated */ |
|
if (!ibdev->eq_table) |
|
return; |
|
|
|
/* Reset the advertised EQ number */ |
|
ibdev->ib_dev.num_comp_vectors = 0; |
|
|
|
for (i = 0; i < total_eqs; i++) |
|
mlx4_release_eq(dev, ibdev->eq_table[i]); |
|
|
|
kfree(ibdev->eq_table); |
|
ibdev->eq_table = NULL; |
|
} |
|
|
|
static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num, |
|
struct ib_port_immutable *immutable) |
|
{ |
|
struct ib_port_attr attr; |
|
struct mlx4_ib_dev *mdev = to_mdev(ibdev); |
|
int err; |
|
|
|
if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) { |
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; |
|
immutable->max_mad_size = IB_MGMT_MAD_SIZE; |
|
} else { |
|
if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) |
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE; |
|
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) |
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE | |
|
RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; |
|
immutable->core_cap_flags |= RDMA_CORE_PORT_RAW_PACKET; |
|
if (immutable->core_cap_flags & (RDMA_CORE_PORT_IBA_ROCE | |
|
RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP)) |
|
immutable->max_mad_size = IB_MGMT_MAD_SIZE; |
|
} |
|
|
|
err = ib_query_port(ibdev, port_num, &attr); |
|
if (err) |
|
return err; |
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len; |
|
immutable->gid_tbl_len = attr.gid_tbl_len; |
|
|
|
return 0; |
|
} |
|
|
|
static void get_fw_ver_str(struct ib_device *device, char *str) |
|
{ |
|
struct mlx4_ib_dev *dev = |
|
container_of(device, struct mlx4_ib_dev, ib_dev); |
|
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d", |
|
(int) (dev->dev->caps.fw_ver >> 32), |
|
(int) (dev->dev->caps.fw_ver >> 16) & 0xffff, |
|
(int) dev->dev->caps.fw_ver & 0xffff); |
|
} |
|
|
|
static const struct ib_device_ops mlx4_ib_dev_ops = { |
|
.owner = THIS_MODULE, |
|
.driver_id = RDMA_DRIVER_MLX4, |
|
.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION, |
|
|
|
.add_gid = mlx4_ib_add_gid, |
|
.alloc_mr = mlx4_ib_alloc_mr, |
|
.alloc_pd = mlx4_ib_alloc_pd, |
|
.alloc_ucontext = mlx4_ib_alloc_ucontext, |
|
.attach_mcast = mlx4_ib_mcg_attach, |
|
.create_ah = mlx4_ib_create_ah, |
|
.create_cq = mlx4_ib_create_cq, |
|
.create_qp = mlx4_ib_create_qp, |
|
.create_srq = mlx4_ib_create_srq, |
|
.dealloc_pd = mlx4_ib_dealloc_pd, |
|
.dealloc_ucontext = mlx4_ib_dealloc_ucontext, |
|
.del_gid = mlx4_ib_del_gid, |
|
.dereg_mr = mlx4_ib_dereg_mr, |
|
.destroy_ah = mlx4_ib_destroy_ah, |
|
.destroy_cq = mlx4_ib_destroy_cq, |
|
.destroy_qp = mlx4_ib_destroy_qp, |
|
.destroy_srq = mlx4_ib_destroy_srq, |
|
.detach_mcast = mlx4_ib_mcg_detach, |
|
.disassociate_ucontext = mlx4_ib_disassociate_ucontext, |
|
.drain_rq = mlx4_ib_drain_rq, |
|
.drain_sq = mlx4_ib_drain_sq, |
|
.get_dev_fw_str = get_fw_ver_str, |
|
.get_dma_mr = mlx4_ib_get_dma_mr, |
|
.get_link_layer = mlx4_ib_port_link_layer, |
|
.get_netdev = mlx4_ib_get_netdev, |
|
.get_port_immutable = mlx4_port_immutable, |
|
.map_mr_sg = mlx4_ib_map_mr_sg, |
|
.mmap = mlx4_ib_mmap, |
|
.modify_cq = mlx4_ib_modify_cq, |
|
.modify_device = mlx4_ib_modify_device, |
|
.modify_port = mlx4_ib_modify_port, |
|
.modify_qp = mlx4_ib_modify_qp, |
|
.modify_srq = mlx4_ib_modify_srq, |
|
.poll_cq = mlx4_ib_poll_cq, |
|
.post_recv = mlx4_ib_post_recv, |
|
.post_send = mlx4_ib_post_send, |
|
.post_srq_recv = mlx4_ib_post_srq_recv, |
|
.process_mad = mlx4_ib_process_mad, |
|
.query_ah = mlx4_ib_query_ah, |
|
.query_device = mlx4_ib_query_device, |
|
.query_gid = mlx4_ib_query_gid, |
|
.query_pkey = mlx4_ib_query_pkey, |
|
.query_port = mlx4_ib_query_port, |
|
.query_qp = mlx4_ib_query_qp, |
|
.query_srq = mlx4_ib_query_srq, |
|
.reg_user_mr = mlx4_ib_reg_user_mr, |
|
.req_notify_cq = mlx4_ib_arm_cq, |
|
.rereg_user_mr = mlx4_ib_rereg_user_mr, |
|
.resize_cq = mlx4_ib_resize_cq, |
|
|
|
INIT_RDMA_OBJ_SIZE(ib_ah, mlx4_ib_ah, ibah), |
|
INIT_RDMA_OBJ_SIZE(ib_cq, mlx4_ib_cq, ibcq), |
|
INIT_RDMA_OBJ_SIZE(ib_pd, mlx4_ib_pd, ibpd), |
|
INIT_RDMA_OBJ_SIZE(ib_srq, mlx4_ib_srq, ibsrq), |
|
INIT_RDMA_OBJ_SIZE(ib_ucontext, mlx4_ib_ucontext, ibucontext), |
|
}; |
|
|
|
static const struct ib_device_ops mlx4_ib_dev_wq_ops = { |
|
.create_rwq_ind_table = mlx4_ib_create_rwq_ind_table, |
|
.create_wq = mlx4_ib_create_wq, |
|
.destroy_rwq_ind_table = mlx4_ib_destroy_rwq_ind_table, |
|
.destroy_wq = mlx4_ib_destroy_wq, |
|
.modify_wq = mlx4_ib_modify_wq, |
|
|
|
INIT_RDMA_OBJ_SIZE(ib_rwq_ind_table, mlx4_ib_rwq_ind_table, |
|
ib_rwq_ind_tbl), |
|
}; |
|
|
|
static const struct ib_device_ops mlx4_ib_dev_mw_ops = { |
|
.alloc_mw = mlx4_ib_alloc_mw, |
|
.dealloc_mw = mlx4_ib_dealloc_mw, |
|
|
|
INIT_RDMA_OBJ_SIZE(ib_mw, mlx4_ib_mw, ibmw), |
|
}; |
|
|
|
static const struct ib_device_ops mlx4_ib_dev_xrc_ops = { |
|
.alloc_xrcd = mlx4_ib_alloc_xrcd, |
|
.dealloc_xrcd = mlx4_ib_dealloc_xrcd, |
|
|
|
INIT_RDMA_OBJ_SIZE(ib_xrcd, mlx4_ib_xrcd, ibxrcd), |
|
}; |
|
|
|
static const struct ib_device_ops mlx4_ib_dev_fs_ops = { |
|
.create_flow = mlx4_ib_create_flow, |
|
.destroy_flow = mlx4_ib_destroy_flow, |
|
}; |
|
|
|
static void *mlx4_ib_add(struct mlx4_dev *dev) |
|
{ |
|
struct mlx4_ib_dev *ibdev; |
|
int num_ports = 0; |
|
int i, j; |
|
int err; |
|
struct mlx4_ib_iboe *iboe; |
|
int ib_num_ports = 0; |
|
int num_req_counters; |
|
int allocated; |
|
u32 counter_index; |
|
struct counter_index *new_counter_index = NULL; |
|
|
|
pr_info_once("%s", mlx4_ib_version); |
|
|
|
num_ports = 0; |
|
mlx4_foreach_ib_transport_port(i, dev) |
|
num_ports++; |
|
|
|
/* No point in registering a device with no ports... */ |
|
if (num_ports == 0) |
|
return NULL; |
|
|
|
ibdev = ib_alloc_device(mlx4_ib_dev, ib_dev); |
|
if (!ibdev) { |
|
dev_err(&dev->persist->pdev->dev, |
|
"Device struct alloc failed\n"); |
|
return NULL; |
|
} |
|
|
|
iboe = &ibdev->iboe; |
|
|
|
if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) |
|
goto err_dealloc; |
|
|
|
if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) |
|
goto err_pd; |
|
|
|
ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT, |
|
PAGE_SIZE); |
|
if (!ibdev->uar_map) |
|
goto err_uar; |
|
MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); |
|
|
|
ibdev->dev = dev; |
|
ibdev->bond_next_port = 0; |
|
|
|
ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; |
|
ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; |
|
ibdev->num_ports = num_ports; |
|
ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ? |
|
1 : ibdev->num_ports; |
|
ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; |
|
ibdev->ib_dev.dev.parent = &dev->persist->pdev->dev; |
|
|
|
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_ops); |
|
|
|
if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) && |
|
((mlx4_ib_port_link_layer(&ibdev->ib_dev, 1) == |
|
IB_LINK_LAYER_ETHERNET) || |
|
(mlx4_ib_port_link_layer(&ibdev->ib_dev, 2) == |
|
IB_LINK_LAYER_ETHERNET))) |
|
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_wq_ops); |
|
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || |
|
dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) |
|
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_mw_ops); |
|
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { |
|
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_xrc_ops); |
|
} |
|
|
|
if (check_flow_steering_support(dev)) { |
|
ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED; |
|
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_fs_ops); |
|
} |
|
|
|
if (!dev->caps.userspace_caps) |
|
ibdev->ib_dev.ops.uverbs_abi_ver = |
|
MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION; |
|
|
|
mlx4_ib_alloc_eqs(dev, ibdev); |
|
|
|
spin_lock_init(&iboe->lock); |
|
|
|
if (init_node_data(ibdev)) |
|
goto err_map; |
|
mlx4_init_sl2vl_tbl(ibdev); |
|
|
|
for (i = 0; i < ibdev->num_ports; ++i) { |
|
mutex_init(&ibdev->counters_table[i].mutex); |
|
INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list); |
|
iboe->last_port_state[i] = IB_PORT_DOWN; |
|
} |
|
|
|
num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports; |
|
for (i = 0; i < num_req_counters; ++i) { |
|
mutex_init(&ibdev->qp1_proxy_lock[i]); |
|
allocated = 0; |
|
if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) == |
|
IB_LINK_LAYER_ETHERNET) { |
|
err = mlx4_counter_alloc(ibdev->dev, &counter_index, |
|
MLX4_RES_USAGE_DRIVER); |
|
/* if failed to allocate a new counter, use default */ |
|
if (err) |
|
counter_index = |
|
mlx4_get_default_counter_index(dev, |
|
i + 1); |
|
else |
|
allocated = 1; |
|
} else { /* IB_LINK_LAYER_INFINIBAND use the default counter */ |
|
counter_index = mlx4_get_default_counter_index(dev, |
|
i + 1); |
|
} |
|
new_counter_index = kmalloc(sizeof(*new_counter_index), |
|
GFP_KERNEL); |
|
if (!new_counter_index) { |
|
if (allocated) |
|
mlx4_counter_free(ibdev->dev, counter_index); |
|
goto err_counter; |
|
} |
|
new_counter_index->index = counter_index; |
|
new_counter_index->allocated = allocated; |
|
list_add_tail(&new_counter_index->list, |
|
&ibdev->counters_table[i].counters_list); |
|
ibdev->counters_table[i].default_counter = counter_index; |
|
pr_info("counter index %d for port %d allocated %d\n", |
|
counter_index, i + 1, allocated); |
|
} |
|
if (mlx4_is_bonded(dev)) |
|
for (i = 1; i < ibdev->num_ports ; ++i) { |
|
new_counter_index = |
|
kmalloc(sizeof(struct counter_index), |
|
GFP_KERNEL); |
|
if (!new_counter_index) |
|
goto err_counter; |
|
new_counter_index->index = counter_index; |
|
new_counter_index->allocated = 0; |
|
list_add_tail(&new_counter_index->list, |
|
&ibdev->counters_table[i].counters_list); |
|
ibdev->counters_table[i].default_counter = |
|
counter_index; |
|
} |
|
|
|
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) |
|
ib_num_ports++; |
|
|
|
spin_lock_init(&ibdev->sm_lock); |
|
mutex_init(&ibdev->cap_mask_mutex); |
|
INIT_LIST_HEAD(&ibdev->qp_list); |
|
spin_lock_init(&ibdev->reset_flow_resource_lock); |
|
|
|
if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED && |
|
ib_num_ports) { |
|
ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS; |
|
err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count, |
|
MLX4_IB_UC_STEER_QPN_ALIGN, |
|
&ibdev->steer_qpn_base, 0, |
|
MLX4_RES_USAGE_DRIVER); |
|
if (err) |
|
goto err_counter; |
|
|
|
ibdev->ib_uc_qpns_bitmap = |
|
kmalloc_array(BITS_TO_LONGS(ibdev->steer_qpn_count), |
|
sizeof(long), |
|
GFP_KERNEL); |
|
if (!ibdev->ib_uc_qpns_bitmap) |
|
goto err_steer_qp_release; |
|
|
|
if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) { |
|
bitmap_zero(ibdev->ib_uc_qpns_bitmap, |
|
ibdev->steer_qpn_count); |
|
err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE( |
|
dev, ibdev->steer_qpn_base, |
|
ibdev->steer_qpn_base + |
|
ibdev->steer_qpn_count - 1); |
|
if (err) |
|
goto err_steer_free_bitmap; |
|
} else { |
|
bitmap_fill(ibdev->ib_uc_qpns_bitmap, |
|
ibdev->steer_qpn_count); |
|
} |
|
} |
|
|
|
for (j = 1; j <= ibdev->dev->caps.num_ports; j++) |
|
atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]); |
|
|
|
if (mlx4_ib_alloc_diag_counters(ibdev)) |
|
goto err_steer_free_bitmap; |
|
|
|
rdma_set_device_sysfs_group(&ibdev->ib_dev, &mlx4_attr_group); |
|
if (ib_register_device(&ibdev->ib_dev, "mlx4_%d", |
|
&dev->persist->pdev->dev)) |
|
goto err_diag_counters; |
|
|
|
if (mlx4_ib_mad_init(ibdev)) |
|
goto err_reg; |
|
|
|
if (mlx4_ib_init_sriov(ibdev)) |
|
goto err_mad; |
|
|
|
if (!iboe->nb.notifier_call) { |
|
iboe->nb.notifier_call = mlx4_ib_netdev_event; |
|
err = register_netdevice_notifier(&iboe->nb); |
|
if (err) { |
|
iboe->nb.notifier_call = NULL; |
|
goto err_notif; |
|
} |
|
} |
|
if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) { |
|
err = mlx4_config_roce_v2_port(dev, ROCE_V2_UDP_DPORT); |
|
if (err) |
|
goto err_notif; |
|
} |
|
|
|
ibdev->ib_active = true; |
|
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) |
|
devlink_port_type_ib_set(mlx4_get_devlink_port(dev, i), |
|
&ibdev->ib_dev); |
|
|
|
if (mlx4_is_mfunc(ibdev->dev)) |
|
init_pkeys(ibdev); |
|
|
|
/* create paravirt contexts for any VFs which are active */ |
|
if (mlx4_is_master(ibdev->dev)) { |
|
for (j = 0; j < MLX4_MFUNC_MAX; j++) { |
|
if (j == mlx4_master_func_num(ibdev->dev)) |
|
continue; |
|
if (mlx4_is_slave_active(ibdev->dev, j)) |
|
do_slave_init(ibdev, j, 1); |
|
} |
|
} |
|
return ibdev; |
|
|
|
err_notif: |
|
if (ibdev->iboe.nb.notifier_call) { |
|
if (unregister_netdevice_notifier(&ibdev->iboe.nb)) |
|
pr_warn("failure unregistering notifier\n"); |
|
ibdev->iboe.nb.notifier_call = NULL; |
|
} |
|
flush_workqueue(wq); |
|
|
|
mlx4_ib_close_sriov(ibdev); |
|
|
|
err_mad: |
|
mlx4_ib_mad_cleanup(ibdev); |
|
|
|
err_reg: |
|
ib_unregister_device(&ibdev->ib_dev); |
|
|
|
err_diag_counters: |
|
mlx4_ib_diag_cleanup(ibdev); |
|
|
|
err_steer_free_bitmap: |
|
kfree(ibdev->ib_uc_qpns_bitmap); |
|
|
|
err_steer_qp_release: |
|
mlx4_qp_release_range(dev, ibdev->steer_qpn_base, |
|
ibdev->steer_qpn_count); |
|
err_counter: |
|
for (i = 0; i < ibdev->num_ports; ++i) |
|
mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]); |
|
|
|
err_map: |
|
mlx4_ib_free_eqs(dev, ibdev); |
|
iounmap(ibdev->uar_map); |
|
|
|
err_uar: |
|
mlx4_uar_free(dev, &ibdev->priv_uar); |
|
|
|
err_pd: |
|
mlx4_pd_free(dev, ibdev->priv_pdn); |
|
|
|
err_dealloc: |
|
ib_dealloc_device(&ibdev->ib_dev); |
|
|
|
return NULL; |
|
} |
|
|
|
int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn) |
|
{ |
|
int offset; |
|
|
|
WARN_ON(!dev->ib_uc_qpns_bitmap); |
|
|
|
offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap, |
|
dev->steer_qpn_count, |
|
get_count_order(count)); |
|
if (offset < 0) |
|
return offset; |
|
|
|
*qpn = dev->steer_qpn_base + offset; |
|
return 0; |
|
} |
|
|
|
void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count) |
|
{ |
|
if (!qpn || |
|
dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED) |
|
return; |
|
|
|
if (WARN(qpn < dev->steer_qpn_base, "qpn = %u, steer_qpn_base = %u\n", |
|
qpn, dev->steer_qpn_base)) |
|
/* not supposed to be here */ |
|
return; |
|
|
|
bitmap_release_region(dev->ib_uc_qpns_bitmap, |
|
qpn - dev->steer_qpn_base, |
|
get_count_order(count)); |
|
} |
|
|
|
int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, |
|
int is_attach) |
|
{ |
|
int err; |
|
size_t flow_size; |
|
struct ib_flow_attr *flow = NULL; |
|
struct ib_flow_spec_ib *ib_spec; |
|
|
|
if (is_attach) { |
|
flow_size = sizeof(struct ib_flow_attr) + |
|
sizeof(struct ib_flow_spec_ib); |
|
flow = kzalloc(flow_size, GFP_KERNEL); |
|
if (!flow) |
|
return -ENOMEM; |
|
flow->port = mqp->port; |
|
flow->num_of_specs = 1; |
|
flow->size = flow_size; |
|
ib_spec = (struct ib_flow_spec_ib *)(flow + 1); |
|
ib_spec->type = IB_FLOW_SPEC_IB; |
|
ib_spec->size = sizeof(struct ib_flow_spec_ib); |
|
/* Add an empty rule for IB L2 */ |
|
memset(&ib_spec->mask, 0, sizeof(ib_spec->mask)); |
|
|
|
err = __mlx4_ib_create_flow(&mqp->ibqp, flow, MLX4_DOMAIN_NIC, |
|
MLX4_FS_REGULAR, &mqp->reg_id); |
|
} else { |
|
err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id); |
|
} |
|
kfree(flow); |
|
return err; |
|
} |
|
|
|
static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) |
|
{ |
|
struct mlx4_ib_dev *ibdev = ibdev_ptr; |
|
int p; |
|
int i; |
|
|
|
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) |
|
devlink_port_type_clear(mlx4_get_devlink_port(dev, i)); |
|
ibdev->ib_active = false; |
|
flush_workqueue(wq); |
|
|
|
if (ibdev->iboe.nb.notifier_call) { |
|
if (unregister_netdevice_notifier(&ibdev->iboe.nb)) |
|
pr_warn("failure unregistering notifier\n"); |
|
ibdev->iboe.nb.notifier_call = NULL; |
|
} |
|
|
|
mlx4_ib_close_sriov(ibdev); |
|
mlx4_ib_mad_cleanup(ibdev); |
|
ib_unregister_device(&ibdev->ib_dev); |
|
mlx4_ib_diag_cleanup(ibdev); |
|
|
|
mlx4_qp_release_range(dev, ibdev->steer_qpn_base, |
|
ibdev->steer_qpn_count); |
|
kfree(ibdev->ib_uc_qpns_bitmap); |
|
|
|
iounmap(ibdev->uar_map); |
|
for (p = 0; p < ibdev->num_ports; ++p) |
|
mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[p]); |
|
|
|
mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) |
|
mlx4_CLOSE_PORT(dev, p); |
|
|
|
mlx4_ib_free_eqs(dev, ibdev); |
|
|
|
mlx4_uar_free(dev, &ibdev->priv_uar); |
|
mlx4_pd_free(dev, ibdev->priv_pdn); |
|
ib_dealloc_device(&ibdev->ib_dev); |
|
} |
|
|
|
static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init) |
|
{ |
|
struct mlx4_ib_demux_work **dm = NULL; |
|
struct mlx4_dev *dev = ibdev->dev; |
|
int i; |
|
unsigned long flags; |
|
struct mlx4_active_ports actv_ports; |
|
unsigned int ports; |
|
unsigned int first_port; |
|
|
|
if (!mlx4_is_master(dev)) |
|
return; |
|
|
|
actv_ports = mlx4_get_active_ports(dev, slave); |
|
ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports); |
|
first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports); |
|
|
|
dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC); |
|
if (!dm) |
|
return; |
|
|
|
for (i = 0; i < ports; i++) { |
|
dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC); |
|
if (!dm[i]) { |
|
while (--i >= 0) |
|
kfree(dm[i]); |
|
goto out; |
|
} |
|
INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work); |
|
dm[i]->port = first_port + i + 1; |
|
dm[i]->slave = slave; |
|
dm[i]->do_init = do_init; |
|
dm[i]->dev = ibdev; |
|
} |
|
/* initialize or tear down tunnel QPs for the slave */ |
|
spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags); |
|
if (!ibdev->sriov.is_going_down) { |
|
for (i = 0; i < ports; i++) |
|
queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work); |
|
spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); |
|
} else { |
|
spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); |
|
for (i = 0; i < ports; i++) |
|
kfree(dm[i]); |
|
} |
|
out: |
|
kfree(dm); |
|
return; |
|
} |
|
|
|
static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev) |
|
{ |
|
struct mlx4_ib_qp *mqp; |
|
unsigned long flags_qp; |
|
unsigned long flags_cq; |
|
struct mlx4_ib_cq *send_mcq, *recv_mcq; |
|
struct list_head cq_notify_list; |
|
struct mlx4_cq *mcq; |
|
unsigned long flags; |
|
|
|
pr_warn("mlx4_ib_handle_catas_error was started\n"); |
|
INIT_LIST_HEAD(&cq_notify_list); |
|
|
|
/* Go over qp list reside on that ibdev, sync with create/destroy qp.*/ |
|
spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags); |
|
|
|
list_for_each_entry(mqp, &ibdev->qp_list, qps_list) { |
|
spin_lock_irqsave(&mqp->sq.lock, flags_qp); |
|
if (mqp->sq.tail != mqp->sq.head) { |
|
send_mcq = to_mcq(mqp->ibqp.send_cq); |
|
spin_lock_irqsave(&send_mcq->lock, flags_cq); |
|
if (send_mcq->mcq.comp && |
|
mqp->ibqp.send_cq->comp_handler) { |
|
if (!send_mcq->mcq.reset_notify_added) { |
|
send_mcq->mcq.reset_notify_added = 1; |
|
list_add_tail(&send_mcq->mcq.reset_notify, |
|
&cq_notify_list); |
|
} |
|
} |
|
spin_unlock_irqrestore(&send_mcq->lock, flags_cq); |
|
} |
|
spin_unlock_irqrestore(&mqp->sq.lock, flags_qp); |
|
/* Now, handle the QP's receive queue */ |
|
spin_lock_irqsave(&mqp->rq.lock, flags_qp); |
|
/* no handling is needed for SRQ */ |
|
if (!mqp->ibqp.srq) { |
|
if (mqp->rq.tail != mqp->rq.head) { |
|
recv_mcq = to_mcq(mqp->ibqp.recv_cq); |
|
spin_lock_irqsave(&recv_mcq->lock, flags_cq); |
|
if (recv_mcq->mcq.comp && |
|
mqp->ibqp.recv_cq->comp_handler) { |
|
if (!recv_mcq->mcq.reset_notify_added) { |
|
recv_mcq->mcq.reset_notify_added = 1; |
|
list_add_tail(&recv_mcq->mcq.reset_notify, |
|
&cq_notify_list); |
|
} |
|
} |
|
spin_unlock_irqrestore(&recv_mcq->lock, |
|
flags_cq); |
|
} |
|
} |
|
spin_unlock_irqrestore(&mqp->rq.lock, flags_qp); |
|
} |
|
|
|
list_for_each_entry(mcq, &cq_notify_list, reset_notify) { |
|
mcq->comp(mcq); |
|
} |
|
spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags); |
|
pr_warn("mlx4_ib_handle_catas_error ended\n"); |
|
} |
|
|
|
static void handle_bonded_port_state_event(struct work_struct *work) |
|
{ |
|
struct ib_event_work *ew = |
|
container_of(work, struct ib_event_work, work); |
|
struct mlx4_ib_dev *ibdev = ew->ib_dev; |
|
enum ib_port_state bonded_port_state = IB_PORT_NOP; |
|
int i; |
|
struct ib_event ibev; |
|
|
|
kfree(ew); |
|
spin_lock_bh(&ibdev->iboe.lock); |
|
for (i = 0; i < MLX4_MAX_PORTS; ++i) { |
|
struct net_device *curr_netdev = ibdev->iboe.netdevs[i]; |
|
enum ib_port_state curr_port_state; |
|
|
|
if (!curr_netdev) |
|
continue; |
|
|
|
curr_port_state = |
|
(netif_running(curr_netdev) && |
|
netif_carrier_ok(curr_netdev)) ? |
|
IB_PORT_ACTIVE : IB_PORT_DOWN; |
|
|
|
bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ? |
|
curr_port_state : IB_PORT_ACTIVE; |
|
} |
|
spin_unlock_bh(&ibdev->iboe.lock); |
|
|
|
ibev.device = &ibdev->ib_dev; |
|
ibev.element.port_num = 1; |
|
ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ? |
|
IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; |
|
|
|
ib_dispatch_event(&ibev); |
|
} |
|
|
|
void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port) |
|
{ |
|
u64 sl2vl; |
|
int err; |
|
|
|
err = mlx4_ib_query_sl2vl(&mdev->ib_dev, port, &sl2vl); |
|
if (err) { |
|
pr_err("Unable to get current sl to vl mapping for port %d. Using all zeroes (%d)\n", |
|
port, err); |
|
sl2vl = 0; |
|
} |
|
atomic64_set(&mdev->sl2vl[port - 1], sl2vl); |
|
} |
|
|
|
static void ib_sl2vl_update_work(struct work_struct *work) |
|
{ |
|
struct ib_event_work *ew = container_of(work, struct ib_event_work, work); |
|
struct mlx4_ib_dev *mdev = ew->ib_dev; |
|
int port = ew->port; |
|
|
|
mlx4_ib_sl2vl_update(mdev, port); |
|
|
|
kfree(ew); |
|
} |
|
|
|
void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev, |
|
int port) |
|
{ |
|
struct ib_event_work *ew; |
|
|
|
ew = kmalloc(sizeof(*ew), GFP_ATOMIC); |
|
if (ew) { |
|
INIT_WORK(&ew->work, ib_sl2vl_update_work); |
|
ew->port = port; |
|
ew->ib_dev = ibdev; |
|
queue_work(wq, &ew->work); |
|
} |
|
} |
|
|
|
static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, |
|
enum mlx4_dev_event event, unsigned long param) |
|
{ |
|
struct ib_event ibev; |
|
struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); |
|
struct mlx4_eqe *eqe = NULL; |
|
struct ib_event_work *ew; |
|
int p = 0; |
|
|
|
if (mlx4_is_bonded(dev) && |
|
((event == MLX4_DEV_EVENT_PORT_UP) || |
|
(event == MLX4_DEV_EVENT_PORT_DOWN))) { |
|
ew = kmalloc(sizeof(*ew), GFP_ATOMIC); |
|
if (!ew) |
|
return; |
|
INIT_WORK(&ew->work, handle_bonded_port_state_event); |
|
ew->ib_dev = ibdev; |
|
queue_work(wq, &ew->work); |
|
return; |
|
} |
|
|
|
if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE) |
|
eqe = (struct mlx4_eqe *)param; |
|
else |
|
p = (int) param; |
|
|
|
switch (event) { |
|
case MLX4_DEV_EVENT_PORT_UP: |
|
if (p > ibdev->num_ports) |
|
return; |
|
if (!mlx4_is_slave(dev) && |
|
rdma_port_get_link_layer(&ibdev->ib_dev, p) == |
|
IB_LINK_LAYER_INFINIBAND) { |
|
if (mlx4_is_master(dev)) |
|
mlx4_ib_invalidate_all_guid_record(ibdev, p); |
|
if (ibdev->dev->flags & MLX4_FLAG_SECURE_HOST && |
|
!(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT)) |
|
mlx4_sched_ib_sl2vl_update_work(ibdev, p); |
|
} |
|
ibev.event = IB_EVENT_PORT_ACTIVE; |
|
break; |
|
|
|
case MLX4_DEV_EVENT_PORT_DOWN: |
|
if (p > ibdev->num_ports) |
|
return; |
|
ibev.event = IB_EVENT_PORT_ERR; |
|
break; |
|
|
|
case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: |
|
ibdev->ib_active = false; |
|
ibev.event = IB_EVENT_DEVICE_FATAL; |
|
mlx4_ib_handle_catas_error(ibdev); |
|
break; |
|
|
|
case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: |
|
ew = kmalloc(sizeof *ew, GFP_ATOMIC); |
|
if (!ew) |
|
break; |
|
|
|
INIT_WORK(&ew->work, handle_port_mgmt_change_event); |
|
memcpy(&ew->ib_eqe, eqe, sizeof *eqe); |
|
ew->ib_dev = ibdev; |
|
/* need to queue only for port owner, which uses GEN_EQE */ |
|
if (mlx4_is_master(dev)) |
|
queue_work(wq, &ew->work); |
|
else |
|
handle_port_mgmt_change_event(&ew->work); |
|
return; |
|
|
|
case MLX4_DEV_EVENT_SLAVE_INIT: |
|
/* here, p is the slave id */ |
|
do_slave_init(ibdev, p, 1); |
|
if (mlx4_is_master(dev)) { |
|
int i; |
|
|
|
for (i = 1; i <= ibdev->num_ports; i++) { |
|
if (rdma_port_get_link_layer(&ibdev->ib_dev, i) |
|
== IB_LINK_LAYER_INFINIBAND) |
|
mlx4_ib_slave_alias_guid_event(ibdev, |
|
p, i, |
|
1); |
|
} |
|
} |
|
return; |
|
|
|
case MLX4_DEV_EVENT_SLAVE_SHUTDOWN: |
|
if (mlx4_is_master(dev)) { |
|
int i; |
|
|
|
for (i = 1; i <= ibdev->num_ports; i++) { |
|
if (rdma_port_get_link_layer(&ibdev->ib_dev, i) |
|
== IB_LINK_LAYER_INFINIBAND) |
|
mlx4_ib_slave_alias_guid_event(ibdev, |
|
p, i, |
|
0); |
|
} |
|
} |
|
/* here, p is the slave id */ |
|
do_slave_init(ibdev, p, 0); |
|
return; |
|
|
|
default: |
|
return; |
|
} |
|
|
|
ibev.device = ibdev_ptr; |
|
ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p; |
|
|
|
ib_dispatch_event(&ibev); |
|
} |
|
|
|
static struct mlx4_interface mlx4_ib_interface = { |
|
.add = mlx4_ib_add, |
|
.remove = mlx4_ib_remove, |
|
.event = mlx4_ib_event, |
|
.protocol = MLX4_PROT_IB_IPV6, |
|
.flags = MLX4_INTFF_BONDING |
|
}; |
|
|
|
static int __init mlx4_ib_init(void) |
|
{ |
|
int err; |
|
|
|
wq = alloc_ordered_workqueue("mlx4_ib", WQ_MEM_RECLAIM); |
|
if (!wq) |
|
return -ENOMEM; |
|
|
|
err = mlx4_ib_mcg_init(); |
|
if (err) |
|
goto clean_wq; |
|
|
|
err = mlx4_register_interface(&mlx4_ib_interface); |
|
if (err) |
|
goto clean_mcg; |
|
|
|
return 0; |
|
|
|
clean_mcg: |
|
mlx4_ib_mcg_destroy(); |
|
|
|
clean_wq: |
|
destroy_workqueue(wq); |
|
return err; |
|
} |
|
|
|
static void __exit mlx4_ib_cleanup(void) |
|
{ |
|
mlx4_unregister_interface(&mlx4_ib_interface); |
|
mlx4_ib_mcg_destroy(); |
|
destroy_workqueue(wq); |
|
} |
|
|
|
module_init(mlx4_ib_init); |
|
module_exit(mlx4_ib_cleanup);
|
|
|