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1b2cd0fc67
Support the new memory registration API by allocating a private page list array in mlx4_ib_mr and populate it when mlx4_ib_map_mr_sg is invoked. Also, support IB_WR_REG_MR by setting the exact WQE as IB_WR_FAST_REG_MR, just take the needed information from different places: - page_size, iova, length, access flags (ib_mr) - page array (mlx4_ib_mr) - key (ib_reg_wr) The IB_WR_FAST_REG_MR handlers will be removed later when all the ULPs will be converted. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Tested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
2905 lines
78 KiB
C
2905 lines
78 KiB
C
/*
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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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#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 <net/ipv6.h>
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#include <net/addrconf.h>
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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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#include <net/bonding.h>
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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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#include "mlx4_ib.h"
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#include "user.h"
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#define DRV_NAME MLX4_IB_DRV_NAME
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#define DRV_VERSION "2.2-1"
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#define DRV_RELDATE "Feb 2014"
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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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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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MODULE_VERSION(DRV_VERSION);
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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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static const char mlx4_ib_version[] =
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DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
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DRV_VERSION " (" DRV_RELDATE ")\n";
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static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
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static struct workqueue_struct *wq;
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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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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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int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
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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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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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mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
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ib_ports++;
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return ib_ports;
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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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rcu_read_lock();
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dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num);
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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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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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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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rcu_read_unlock();
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return dev;
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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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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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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], &gids[i].gid, sizeof(union ib_gid));
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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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mlx4_free_cmd_mailbox(dev, mailbox);
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return err;
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}
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static int mlx4_ib_add_gid(struct ib_device *device,
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u8 port_num,
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unsigned int index,
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const union ib_gid *gid,
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const struct ib_gid_attr *attr,
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void **context)
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{
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struct mlx4_ib_dev *ibdev = to_mdev(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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if (!rdma_cap_roce_gid_table(device, port_num))
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return -EINVAL;
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if (port_num > MLX4_MAX_PORTS)
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return -EINVAL;
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if (!context)
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return -EINVAL;
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port_gid_table = &iboe->gids[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, gid, sizeof(*gid))) {
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found = i;
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break;
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}
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if (free < 0 && !memcmp(&port_gid_table->gids[i].gid, &zgid, sizeof(*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, gid, sizeof(*gid));
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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(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
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if (!gids) {
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ret = -ENOMEM;
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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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}
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}
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spin_unlock_bh(&iboe->lock);
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if (!ret && hw_update) {
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ret = mlx4_ib_update_gids(gids, ibdev, port_num);
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kfree(gids);
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}
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return ret;
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}
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static int mlx4_ib_del_gid(struct ib_device *device,
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u8 port_num,
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unsigned int index,
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void **context)
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{
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struct gid_cache_context *ctx = *context;
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struct mlx4_ib_dev *ibdev = to_mdev(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 ret = 0;
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int hw_update = 0;
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struct gid_entry *gids = NULL;
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if (!rdma_cap_roce_gid_table(device, port_num))
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return -EINVAL;
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if (port_num > MLX4_MAX_PORTS)
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return -EINVAL;
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port_gid_table = &iboe->gids[port_num - 1];
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spin_lock_bh(&iboe->lock);
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if (ctx) {
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ctx->refcount--;
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if (!ctx->refcount) {
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unsigned int real_index = ctx->real_index;
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memcpy(&port_gid_table->gids[real_index].gid, &zgid, sizeof(zgid));
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kfree(port_gid_table->gids[real_index].ctx);
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port_gid_table->gids[real_index].ctx = NULL;
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hw_update = 1;
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}
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}
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if (!ret && hw_update) {
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int i;
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gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
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if (!gids) {
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ret = -ENOMEM;
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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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}
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}
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spin_unlock_bh(&iboe->lock);
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if (!ret && hw_update) {
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ret = mlx4_ib_update_gids(gids, ibdev, port_num);
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kfree(gids);
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}
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return ret;
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}
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int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
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u8 port_num, int index)
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{
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struct mlx4_ib_iboe *iboe = &ibdev->iboe;
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struct gid_cache_context *ctx = NULL;
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union ib_gid gid;
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struct mlx4_port_gid_table *port_gid_table;
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int real_index = -EINVAL;
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int i;
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int ret;
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unsigned long flags;
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if (port_num > MLX4_MAX_PORTS)
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return -EINVAL;
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if (mlx4_is_bonded(ibdev->dev))
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port_num = 1;
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if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num))
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return index;
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ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid, NULL);
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if (ret)
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return ret;
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if (!memcmp(&gid, &zgid, sizeof(gid)))
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return -EINVAL;
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spin_lock_irqsave(&iboe->lock, flags);
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port_gid_table = &iboe->gids[port_num - 1];
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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, &gid, sizeof(gid))) {
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ctx = port_gid_table->gids[i].ctx;
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break;
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}
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if (ctx)
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real_index = ctx->real_index;
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spin_unlock_irqrestore(&iboe->lock, flags);
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return real_index;
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}
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static int mlx4_ib_query_device(struct ib_device *ibdev,
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struct ib_device_attr *props,
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struct ib_udata *uhw)
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{
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struct mlx4_ib_dev *dev = to_mdev(ibdev);
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struct ib_smp *in_mad = NULL;
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struct ib_smp *out_mad = NULL;
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int err = -ENOMEM;
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int have_ib_ports;
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struct mlx4_uverbs_ex_query_device cmd;
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struct mlx4_uverbs_ex_query_device_resp resp = {.comp_mask = 0};
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struct mlx4_clock_params clock_params;
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if (uhw->inlen) {
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if (uhw->inlen < sizeof(cmd))
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return -EINVAL;
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err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd));
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if (err)
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return err;
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if (cmd.comp_mask)
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return -EINVAL;
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if (cmd.reserved)
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return -EINVAL;
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}
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resp.response_length = offsetof(typeof(resp), response_length) +
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sizeof(resp.response_length);
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in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
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out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
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if (!in_mad || !out_mad)
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goto out;
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init_query_mad(in_mad);
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in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
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err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
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1, NULL, NULL, in_mad, out_mad);
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if (err)
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goto out;
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memset(props, 0, sizeof *props);
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have_ib_ports = num_ib_ports(dev->dev);
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props->fw_ver = dev->dev->caps.fw_ver;
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props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
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IB_DEVICE_PORT_ACTIVE_EVENT |
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IB_DEVICE_SYS_IMAGE_GUID |
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IB_DEVICE_RC_RNR_NAK_GEN |
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IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
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props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
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props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports)
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props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
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props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
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props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
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if (dev->dev->caps.max_gso_sz &&
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(dev->dev->rev_id != MLX4_IB_CARD_REV_A0) &&
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(dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH))
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props->device_cap_flags |= IB_DEVICE_UD_TSO;
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if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
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props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
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if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
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(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
|
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(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
|
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props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
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props->device_cap_flags |= IB_DEVICE_XRC;
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if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
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props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
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if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
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if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
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props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
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else
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props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
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if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
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props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
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}
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|
|
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_sge = min(dev->dev->caps.max_sq_sg,
|
|
dev->dev->caps.max_rq_sg);
|
|
props->max_sge_rd = props->max_sge;
|
|
props->max_cq = dev->dev->quotas.cq;
|
|
props->max_cqe = dev->dev->caps.max_cqes;
|
|
props->max_mr = dev->dev->quotas.mpt;
|
|
props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
|
|
props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
|
|
props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
|
|
props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
|
|
props->max_srq = dev->dev->quotas.srq;
|
|
props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1;
|
|
props->max_srq_sge = dev->dev->caps.max_srq_sge;
|
|
props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
|
|
props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
|
|
props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
|
|
IB_ATOMIC_HCA : IB_ATOMIC_NONE;
|
|
props->masked_atomic_cap = props->atomic_cap;
|
|
props->max_pkeys = dev->dev->caps.pkey_table_len[1];
|
|
props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
|
|
props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
|
|
props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
|
|
props->max_mcast_grp;
|
|
props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
|
|
props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
|
|
props->timestamp_mask = 0xFFFFFFFFFFFFULL;
|
|
|
|
if (!mlx4_is_slave(dev->dev))
|
|
err = mlx4_get_internal_clock_params(dev->dev, &clock_params);
|
|
|
|
if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) {
|
|
resp.response_length += sizeof(resp.hca_core_clock_offset);
|
|
if (!err && !mlx4_is_slave(dev->dev)) {
|
|
resp.comp_mask |= QUERY_DEVICE_RESP_MASK_TIMESTAMP;
|
|
resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE;
|
|
}
|
|
}
|
|
|
|
if (uhw->outlen) {
|
|
err = ib_copy_to_udata(uhw, &resp, resp.response_length);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
|
|
return err;
|
|
}
|
|
|
|
static enum rdma_link_layer
|
|
mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
|
|
{
|
|
struct mlx4_dev *dev = to_mdev(device)->dev;
|
|
|
|
return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
|
|
IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
|
|
}
|
|
|
|
static int ib_link_query_port(struct ib_device *ibdev, u8 port,
|
|
struct ib_port_attr *props, int netw_view)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int ext_active_speed;
|
|
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
|
|
int err = -ENOMEM;
|
|
|
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(port);
|
|
|
|
if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
|
|
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
|
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
|
|
in_mad, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
|
|
props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
|
|
props->lmc = out_mad->data[34] & 0x7;
|
|
props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
|
|
props->sm_sl = out_mad->data[36] & 0xf;
|
|
props->state = out_mad->data[32] & 0xf;
|
|
props->phys_state = out_mad->data[33] >> 4;
|
|
props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
|
|
if (netw_view)
|
|
props->gid_tbl_len = out_mad->data[50];
|
|
else
|
|
props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
|
|
props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
|
|
props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
|
|
props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
|
|
props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
|
|
props->active_width = out_mad->data[31] & 0xf;
|
|
props->active_speed = out_mad->data[35] >> 4;
|
|
props->max_mtu = out_mad->data[41] & 0xf;
|
|
props->active_mtu = out_mad->data[36] >> 4;
|
|
props->subnet_timeout = out_mad->data[51] & 0x1f;
|
|
props->max_vl_num = out_mad->data[37] >> 4;
|
|
props->init_type_reply = out_mad->data[41] >> 4;
|
|
|
|
/* Check if extended speeds (EDR/FDR/...) are supported */
|
|
if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
|
|
ext_active_speed = out_mad->data[62] >> 4;
|
|
|
|
switch (ext_active_speed) {
|
|
case 1:
|
|
props->active_speed = IB_SPEED_FDR;
|
|
break;
|
|
case 2:
|
|
props->active_speed = IB_SPEED_EDR;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If reported active speed is QDR, check if is FDR-10 */
|
|
if (props->active_speed == IB_SPEED_QDR) {
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(port);
|
|
|
|
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
|
|
NULL, NULL, in_mad, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
/* Checking LinkSpeedActive for FDR-10 */
|
|
if (out_mad->data[15] & 0x1)
|
|
props->active_speed = IB_SPEED_FDR10;
|
|
}
|
|
|
|
/* Avoid wrong speed value returned by FW if the IB link is down. */
|
|
if (props->state == IB_PORT_DOWN)
|
|
props->active_speed = IB_SPEED_SDR;
|
|
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
static u8 state_to_phys_state(enum ib_port_state state)
|
|
{
|
|
return state == IB_PORT_ACTIVE ? 5 : 3;
|
|
}
|
|
|
|
static int eth_link_query_port(struct ib_device *ibdev, u8 port,
|
|
struct ib_port_attr *props, int netw_view)
|
|
{
|
|
|
|
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) ?
|
|
IB_WIDTH_4X : IB_WIDTH_1X;
|
|
props->active_speed = IB_SPEED_QDR;
|
|
props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
|
|
props->gid_tbl_len = mdev->dev->caps.gid_table_len[port];
|
|
props->max_msg_sz = mdev->dev->caps.max_msg_sz;
|
|
props->pkey_tbl_len = 1;
|
|
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;
|
|
|
|
memset(props, 0, sizeof *props);
|
|
|
|
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, netw_view);
|
|
|
|
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)
|
|
{
|
|
int ret;
|
|
|
|
if (rdma_protocol_ib(ibdev, port))
|
|
return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
|
|
|
|
if (!rdma_protocol_roce(ibdev, port))
|
|
return -ENODEV;
|
|
|
|
if (!rdma_cap_roce_gid_table(ibdev, port))
|
|
return -ENODEV;
|
|
|
|
ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
|
|
if (ret == -EAGAIN) {
|
|
memcpy(gid, &zgid, sizeof(*gid));
|
|
return 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
|
|
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, 64);
|
|
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, 64);
|
|
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 = mlx4_ib_query_port(ibdev, port, &attr);
|
|
if (err)
|
|
goto out;
|
|
|
|
cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
|
|
~props->clr_port_cap_mask;
|
|
|
|
err = mlx4_ib_SET_PORT(mdev, port,
|
|
!!(mask & IB_PORT_RESET_QKEY_CNTR),
|
|
cap_mask);
|
|
|
|
out:
|
|
mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
|
|
return err;
|
|
}
|
|
|
|
static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mlx4_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx4_ib_ucontext *context;
|
|
struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
|
|
struct mlx4_ib_alloc_ucontext_resp resp;
|
|
int err;
|
|
|
|
if (!dev->ib_active)
|
|
return ERR_PTR(-EAGAIN);
|
|
|
|
if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
|
|
resp_v3.qp_tab_size = dev->dev->caps.num_qps;
|
|
resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size;
|
|
resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
|
|
} else {
|
|
resp.dev_caps = dev->dev->caps.userspace_caps;
|
|
resp.qp_tab_size = dev->dev->caps.num_qps;
|
|
resp.bf_reg_size = dev->dev->caps.bf_reg_size;
|
|
resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
|
|
resp.cqe_size = dev->dev->caps.cqe_size;
|
|
}
|
|
|
|
context = kzalloc(sizeof(*context), GFP_KERNEL);
|
|
if (!context)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
|
|
if (err) {
|
|
kfree(context);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
INIT_LIST_HEAD(&context->db_page_list);
|
|
mutex_init(&context->db_page_mutex);
|
|
|
|
if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
|
|
err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
|
|
else
|
|
err = ib_copy_to_udata(udata, &resp, sizeof(resp));
|
|
|
|
if (err) {
|
|
mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
|
|
kfree(context);
|
|
return ERR_PTR(-EFAULT);
|
|
}
|
|
|
|
return &context->ibucontext;
|
|
}
|
|
|
|
static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
|
|
{
|
|
struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
|
|
|
|
mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
|
|
kfree(context);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx4_ib_vma_open(struct vm_area_struct *area)
|
|
{
|
|
/* vma_open is called when a new VMA is created on top of our VMA.
|
|
* This is done through either mremap flow or split_vma (usually due
|
|
* to mlock, madvise, munmap, etc.). We do not support a clone of the
|
|
* vma, as this VMA is strongly hardware related. Therefore we set the
|
|
* vm_ops of the newly created/cloned VMA to NULL, to prevent it from
|
|
* calling us again and trying to do incorrect actions. We assume that
|
|
* the original vma size is exactly a single page that there will be no
|
|
* "splitting" operations on.
|
|
*/
|
|
area->vm_ops = NULL;
|
|
}
|
|
|
|
static void mlx4_ib_vma_close(struct vm_area_struct *area)
|
|
{
|
|
struct mlx4_ib_vma_private_data *mlx4_ib_vma_priv_data;
|
|
|
|
/* It's guaranteed that all VMAs opened on a FD are closed before the
|
|
* file itself is closed, therefore no sync is needed with the regular
|
|
* closing flow. (e.g. mlx4_ib_dealloc_ucontext) However need a sync
|
|
* with accessing the vma as part of mlx4_ib_disassociate_ucontext.
|
|
* The close operation is usually called under mm->mmap_sem except when
|
|
* process is exiting. The exiting case is handled explicitly as part
|
|
* of mlx4_ib_disassociate_ucontext.
|
|
*/
|
|
mlx4_ib_vma_priv_data = (struct mlx4_ib_vma_private_data *)
|
|
area->vm_private_data;
|
|
|
|
/* set the vma context pointer to null in the mlx4_ib driver's private
|
|
* data to protect against a race condition in mlx4_ib_dissassociate_ucontext().
|
|
*/
|
|
mlx4_ib_vma_priv_data->vma = NULL;
|
|
}
|
|
|
|
static const struct vm_operations_struct mlx4_ib_vm_ops = {
|
|
.open = mlx4_ib_vma_open,
|
|
.close = mlx4_ib_vma_close
|
|
};
|
|
|
|
static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
|
|
{
|
|
int i;
|
|
int ret = 0;
|
|
struct vm_area_struct *vma;
|
|
struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
|
|
struct task_struct *owning_process = NULL;
|
|
struct mm_struct *owning_mm = NULL;
|
|
|
|
owning_process = get_pid_task(ibcontext->tgid, PIDTYPE_PID);
|
|
if (!owning_process)
|
|
return;
|
|
|
|
owning_mm = get_task_mm(owning_process);
|
|
if (!owning_mm) {
|
|
pr_info("no mm, disassociate ucontext is pending task termination\n");
|
|
while (1) {
|
|
/* make sure that task is dead before returning, it may
|
|
* prevent a rare case of module down in parallel to a
|
|
* call to mlx4_ib_vma_close.
|
|
*/
|
|
put_task_struct(owning_process);
|
|
msleep(1);
|
|
owning_process = get_pid_task(ibcontext->tgid,
|
|
PIDTYPE_PID);
|
|
if (!owning_process ||
|
|
owning_process->state == TASK_DEAD) {
|
|
pr_info("disassociate ucontext done, task was terminated\n");
|
|
/* in case task was dead need to release the task struct */
|
|
if (owning_process)
|
|
put_task_struct(owning_process);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* need to protect from a race on closing the vma as part of
|
|
* mlx4_ib_vma_close().
|
|
*/
|
|
down_read(&owning_mm->mmap_sem);
|
|
for (i = 0; i < HW_BAR_COUNT; i++) {
|
|
vma = context->hw_bar_info[i].vma;
|
|
if (!vma)
|
|
continue;
|
|
|
|
ret = zap_vma_ptes(context->hw_bar_info[i].vma,
|
|
context->hw_bar_info[i].vma->vm_start,
|
|
PAGE_SIZE);
|
|
if (ret) {
|
|
pr_err("Error: zap_vma_ptes failed for index=%d, ret=%d\n", i, ret);
|
|
BUG_ON(1);
|
|
}
|
|
|
|
/* context going to be destroyed, should not access ops any more */
|
|
context->hw_bar_info[i].vma->vm_ops = NULL;
|
|
}
|
|
|
|
up_read(&owning_mm->mmap_sem);
|
|
mmput(owning_mm);
|
|
put_task_struct(owning_process);
|
|
}
|
|
|
|
static void mlx4_ib_set_vma_data(struct vm_area_struct *vma,
|
|
struct mlx4_ib_vma_private_data *vma_private_data)
|
|
{
|
|
vma_private_data->vma = vma;
|
|
vma->vm_private_data = vma_private_data;
|
|
vma->vm_ops = &mlx4_ib_vm_ops;
|
|
}
|
|
|
|
static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
|
|
{
|
|
struct mlx4_ib_dev *dev = to_mdev(context->device);
|
|
struct mlx4_ib_ucontext *mucontext = to_mucontext(context);
|
|
|
|
if (vma->vm_end - vma->vm_start != PAGE_SIZE)
|
|
return -EINVAL;
|
|
|
|
if (vma->vm_pgoff == 0) {
|
|
/* We prevent double mmaping on same context */
|
|
if (mucontext->hw_bar_info[HW_BAR_DB].vma)
|
|
return -EINVAL;
|
|
|
|
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
|
|
|
|
if (io_remap_pfn_range(vma, vma->vm_start,
|
|
to_mucontext(context)->uar.pfn,
|
|
PAGE_SIZE, vma->vm_page_prot))
|
|
return -EAGAIN;
|
|
|
|
mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_DB]);
|
|
|
|
} else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
|
|
/* We prevent double mmaping on same context */
|
|
if (mucontext->hw_bar_info[HW_BAR_BF].vma)
|
|
return -EINVAL;
|
|
|
|
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
|
|
|
|
if (io_remap_pfn_range(vma, vma->vm_start,
|
|
to_mucontext(context)->uar.pfn +
|
|
dev->dev->caps.num_uars,
|
|
PAGE_SIZE, vma->vm_page_prot))
|
|
return -EAGAIN;
|
|
|
|
mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_BF]);
|
|
|
|
} else if (vma->vm_pgoff == 3) {
|
|
struct mlx4_clock_params params;
|
|
int ret;
|
|
|
|
/* We prevent double mmaping on same context */
|
|
if (mucontext->hw_bar_info[HW_BAR_CLOCK].vma)
|
|
return -EINVAL;
|
|
|
|
ret = mlx4_get_internal_clock_params(dev->dev, ¶ms);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
|
|
if (io_remap_pfn_range(vma, vma->vm_start,
|
|
(pci_resource_start(dev->dev->persist->pdev,
|
|
params.bar) +
|
|
params.offset)
|
|
>> PAGE_SHIFT,
|
|
PAGE_SIZE, vma->vm_page_prot))
|
|
return -EAGAIN;
|
|
|
|
mlx4_ib_set_vma_data(vma,
|
|
&mucontext->hw_bar_info[HW_BAR_CLOCK]);
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
|
|
struct ib_ucontext *context,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mlx4_ib_pd *pd;
|
|
int err;
|
|
|
|
pd = kmalloc(sizeof *pd, GFP_KERNEL);
|
|
if (!pd)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
|
|
if (err) {
|
|
kfree(pd);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
if (context)
|
|
if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
|
|
mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
|
|
kfree(pd);
|
|
return ERR_PTR(-EFAULT);
|
|
}
|
|
|
|
return &pd->ibpd;
|
|
}
|
|
|
|
static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
|
|
{
|
|
mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
|
|
kfree(pd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
|
|
struct ib_ucontext *context,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mlx4_ib_xrcd *xrcd;
|
|
struct ib_cq_init_attr cq_attr = {};
|
|
int err;
|
|
|
|
if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
|
|
return ERR_PTR(-ENOSYS);
|
|
|
|
xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
|
|
if (!xrcd)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
|
|
if (err)
|
|
goto err1;
|
|
|
|
xrcd->pd = ib_alloc_pd(ibdev);
|
|
if (IS_ERR(xrcd->pd)) {
|
|
err = PTR_ERR(xrcd->pd);
|
|
goto err2;
|
|
}
|
|
|
|
cq_attr.cqe = 1;
|
|
xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, &cq_attr);
|
|
if (IS_ERR(xrcd->cq)) {
|
|
err = PTR_ERR(xrcd->cq);
|
|
goto err3;
|
|
}
|
|
|
|
return &xrcd->ibxrcd;
|
|
|
|
err3:
|
|
ib_dealloc_pd(xrcd->pd);
|
|
err2:
|
|
mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
|
|
err1:
|
|
kfree(xrcd);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
|
|
{
|
|
ib_destroy_cq(to_mxrcd(xrcd)->cq);
|
|
ib_dealloc_pd(to_mxrcd(xrcd)->pd);
|
|
mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
|
|
kfree(xrcd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
|
|
{
|
|
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
|
|
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
|
|
struct mlx4_ib_gid_entry *ge;
|
|
|
|
ge = kzalloc(sizeof *ge, GFP_KERNEL);
|
|
if (!ge)
|
|
return -ENOMEM;
|
|
|
|
ge->gid = *gid;
|
|
if (mlx4_ib_add_mc(mdev, mqp, gid)) {
|
|
ge->port = mqp->port;
|
|
ge->added = 1;
|
|
}
|
|
|
|
mutex_lock(&mqp->mutex);
|
|
list_add_tail(&ge->list, &mqp->gid_list);
|
|
mutex_unlock(&mqp->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev,
|
|
struct mlx4_ib_counters *ctr_table)
|
|
{
|
|
struct counter_index *counter, *tmp_count;
|
|
|
|
mutex_lock(&ctr_table->mutex);
|
|
list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list,
|
|
list) {
|
|
if (counter->allocated)
|
|
mlx4_counter_free(ibdev->dev, counter->index);
|
|
list_del(&counter->list);
|
|
kfree(counter);
|
|
}
|
|
mutex_unlock(&ctr_table->mutex);
|
|
}
|
|
|
|
int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
|
|
union ib_gid *gid)
|
|
{
|
|
struct net_device *ndev;
|
|
int ret = 0;
|
|
|
|
if (!mqp->port)
|
|
return 0;
|
|
|
|
spin_lock_bh(&mdev->iboe.lock);
|
|
ndev = mdev->iboe.netdevs[mqp->port - 1];
|
|
if (ndev)
|
|
dev_hold(ndev);
|
|
spin_unlock_bh(&mdev->iboe.lock);
|
|
|
|
if (ndev) {
|
|
ret = 1;
|
|
dev_put(ndev);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct mlx4_ib_steering {
|
|
struct list_head list;
|
|
struct mlx4_flow_reg_id reg_id;
|
|
union ib_gid gid;
|
|
};
|
|
|
|
static int parse_flow_attr(struct mlx4_dev *dev,
|
|
u32 qp_num,
|
|
union ib_flow_spec *ib_spec,
|
|
struct _rule_hw *mlx4_spec)
|
|
{
|
|
enum mlx4_net_trans_rule_id type;
|
|
|
|
switch (ib_spec->type) {
|
|
case IB_FLOW_SPEC_ETH:
|
|
type = MLX4_NET_TRANS_RULE_ID_ETH;
|
|
memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
|
|
ETH_ALEN);
|
|
memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
|
|
ETH_ALEN);
|
|
mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
|
|
mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
|
|
break;
|
|
case IB_FLOW_SPEC_IB:
|
|
type = MLX4_NET_TRANS_RULE_ID_IB;
|
|
mlx4_spec->ib.l3_qpn =
|
|
cpu_to_be32(qp_num);
|
|
mlx4_spec->ib.qpn_mask =
|
|
cpu_to_be32(MLX4_IB_FLOW_QPN_MASK);
|
|
break;
|
|
|
|
|
|
case IB_FLOW_SPEC_IPV4:
|
|
type = MLX4_NET_TRANS_RULE_ID_IPV4;
|
|
mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
|
|
mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
|
|
mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
|
|
mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
|
|
break;
|
|
|
|
case IB_FLOW_SPEC_TCP:
|
|
case IB_FLOW_SPEC_UDP:
|
|
type = ib_spec->type == IB_FLOW_SPEC_TCP ?
|
|
MLX4_NET_TRANS_RULE_ID_TCP :
|
|
MLX4_NET_TRANS_RULE_ID_UDP;
|
|
mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
|
|
mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port;
|
|
mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
|
|
mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 ||
|
|
mlx4_hw_rule_sz(dev, type) < 0)
|
|
return -EINVAL;
|
|
mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type));
|
|
mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2;
|
|
return mlx4_hw_rule_sz(dev, type);
|
|
}
|
|
|
|
struct default_rules {
|
|
__u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
|
|
__u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
|
|
__u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS];
|
|
__u8 link_layer;
|
|
};
|
|
static const struct default_rules default_table[] = {
|
|
{
|
|
.mandatory_fields = {IB_FLOW_SPEC_IPV4},
|
|
.mandatory_not_fields = {IB_FLOW_SPEC_ETH},
|
|
.rules_create_list = {IB_FLOW_SPEC_IB},
|
|
.link_layer = IB_LINK_LAYER_INFINIBAND
|
|
}
|
|
};
|
|
|
|
static int __mlx4_ib_default_rules_match(struct ib_qp *qp,
|
|
struct ib_flow_attr *flow_attr)
|
|
{
|
|
int i, j, k;
|
|
void *ib_flow;
|
|
const struct default_rules *pdefault_rules = default_table;
|
|
u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) {
|
|
__u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS];
|
|
memset(&field_types, 0, sizeof(field_types));
|
|
|
|
if (link_layer != pdefault_rules->link_layer)
|
|
continue;
|
|
|
|
ib_flow = flow_attr + 1;
|
|
/* we assume the specs are sorted */
|
|
for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS &&
|
|
j < flow_attr->num_of_specs; k++) {
|
|
union ib_flow_spec *current_flow =
|
|
(union ib_flow_spec *)ib_flow;
|
|
|
|
/* same layer but different type */
|
|
if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) ==
|
|
(pdefault_rules->mandatory_fields[k] &
|
|
IB_FLOW_SPEC_LAYER_MASK)) &&
|
|
(current_flow->type !=
|
|
pdefault_rules->mandatory_fields[k]))
|
|
goto out;
|
|
|
|
/* same layer, try match next one */
|
|
if (current_flow->type ==
|
|
pdefault_rules->mandatory_fields[k]) {
|
|
j++;
|
|
ib_flow +=
|
|
((union ib_flow_spec *)ib_flow)->size;
|
|
}
|
|
}
|
|
|
|
ib_flow = flow_attr + 1;
|
|
for (j = 0; j < flow_attr->num_of_specs;
|
|
j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size)
|
|
for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++)
|
|
/* same layer and same type */
|
|
if (((union ib_flow_spec *)ib_flow)->type ==
|
|
pdefault_rules->mandatory_not_fields[k])
|
|
goto out;
|
|
|
|
return i;
|
|
}
|
|
out:
|
|
return -1;
|
|
}
|
|
|
|
static int __mlx4_ib_create_default_rules(
|
|
struct mlx4_ib_dev *mdev,
|
|
struct ib_qp *qp,
|
|
const struct default_rules *pdefault_rules,
|
|
struct _rule_hw *mlx4_spec) {
|
|
int size = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) {
|
|
int ret;
|
|
union ib_flow_spec ib_spec;
|
|
switch (pdefault_rules->rules_create_list[i]) {
|
|
case 0:
|
|
/* no rule */
|
|
continue;
|
|
case IB_FLOW_SPEC_IB:
|
|
ib_spec.type = IB_FLOW_SPEC_IB;
|
|
ib_spec.size = sizeof(struct ib_flow_spec_ib);
|
|
|
|
break;
|
|
default:
|
|
/* invalid rule */
|
|
return -EINVAL;
|
|
}
|
|
/* We must put empty rule, qpn is being ignored */
|
|
ret = parse_flow_attr(mdev->dev, 0, &ib_spec,
|
|
mlx4_spec);
|
|
if (ret < 0) {
|
|
pr_info("invalid parsing\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
mlx4_spec = (void *)mlx4_spec + ret;
|
|
size += ret;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
|
|
int domain,
|
|
enum mlx4_net_trans_promisc_mode flow_type,
|
|
u64 *reg_id)
|
|
{
|
|
int ret, i;
|
|
int size = 0;
|
|
void *ib_flow;
|
|
struct mlx4_ib_dev *mdev = to_mdev(qp->device);
|
|
struct mlx4_cmd_mailbox *mailbox;
|
|
struct mlx4_net_trans_rule_hw_ctrl *ctrl;
|
|
int default_flow;
|
|
|
|
static const u16 __mlx4_domain[] = {
|
|
[IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
|
|
[IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL,
|
|
[IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS,
|
|
[IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC,
|
|
};
|
|
|
|
if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
|
|
pr_err("Invalid priority value %d\n", flow_attr->priority);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (domain >= IB_FLOW_DOMAIN_NUM) {
|
|
pr_err("Invalid domain value %d\n", domain);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
|
|
return -EINVAL;
|
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
|
|
if (IS_ERR(mailbox))
|
|
return PTR_ERR(mailbox);
|
|
ctrl = mailbox->buf;
|
|
|
|
ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
|
|
flow_attr->priority);
|
|
ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type);
|
|
ctrl->port = flow_attr->port;
|
|
ctrl->qpn = cpu_to_be32(qp->qp_num);
|
|
|
|
ib_flow = flow_attr + 1;
|
|
size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
|
|
/* Add default flows */
|
|
default_flow = __mlx4_ib_default_rules_match(qp, flow_attr);
|
|
if (default_flow >= 0) {
|
|
ret = __mlx4_ib_create_default_rules(
|
|
mdev, qp, default_table + default_flow,
|
|
mailbox->buf + size);
|
|
if (ret < 0) {
|
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
|
|
return -EINVAL;
|
|
}
|
|
size += ret;
|
|
}
|
|
for (i = 0; i < flow_attr->num_of_specs; i++) {
|
|
ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow,
|
|
mailbox->buf + size);
|
|
if (ret < 0) {
|
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
|
|
return -EINVAL;
|
|
}
|
|
ib_flow += ((union ib_flow_spec *) ib_flow)->size;
|
|
size += ret;
|
|
}
|
|
|
|
ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
|
|
MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
|
|
MLX4_CMD_WRAPPED);
|
|
if (ret == -ENOMEM)
|
|
pr_err("mcg table is full. Fail to register network rule.\n");
|
|
else if (ret == -ENXIO)
|
|
pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
|
|
else if (ret)
|
|
pr_err("Invalid argumant. Fail to register network rule.\n");
|
|
|
|
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
|
|
return ret;
|
|
}
|
|
|
|
static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
|
|
{
|
|
int err;
|
|
err = mlx4_cmd(dev, reg_id, 0, 0,
|
|
MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
|
|
MLX4_CMD_WRAPPED);
|
|
if (err)
|
|
pr_err("Fail to detach network rule. registration id = 0x%llx\n",
|
|
reg_id);
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
|
|
u64 *reg_id)
|
|
{
|
|
void *ib_flow;
|
|
union ib_flow_spec *ib_spec;
|
|
struct mlx4_dev *dev = to_mdev(qp->device)->dev;
|
|
int err = 0;
|
|
|
|
if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
|
|
dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
|
|
return 0; /* do nothing */
|
|
|
|
ib_flow = flow_attr + 1;
|
|
ib_spec = (union ib_flow_spec *)ib_flow;
|
|
|
|
if (ib_spec->type != IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1)
|
|
return 0; /* do nothing */
|
|
|
|
err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac,
|
|
flow_attr->port, qp->qp_num,
|
|
MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff),
|
|
reg_id);
|
|
return err;
|
|
}
|
|
|
|
static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
|
|
struct ib_flow_attr *flow_attr,
|
|
int domain)
|
|
{
|
|
int err = 0, i = 0, j = 0;
|
|
struct mlx4_ib_flow *mflow;
|
|
enum mlx4_net_trans_promisc_mode type[2];
|
|
struct mlx4_dev *dev = (to_mdev(qp->device))->dev;
|
|
int is_bonded = mlx4_is_bonded(dev);
|
|
|
|
memset(type, 0, sizeof(type));
|
|
|
|
mflow = kzalloc(sizeof(*mflow), GFP_KERNEL);
|
|
if (!mflow) {
|
|
err = -ENOMEM;
|
|
goto err_free;
|
|
}
|
|
|
|
switch (flow_attr->type) {
|
|
case IB_FLOW_ATTR_NORMAL:
|
|
type[0] = MLX4_FS_REGULAR;
|
|
break;
|
|
|
|
case IB_FLOW_ATTR_ALL_DEFAULT:
|
|
type[0] = MLX4_FS_ALL_DEFAULT;
|
|
break;
|
|
|
|
case IB_FLOW_ATTR_MC_DEFAULT:
|
|
type[0] = MLX4_FS_MC_DEFAULT;
|
|
break;
|
|
|
|
case IB_FLOW_ATTR_SNIFFER:
|
|
type[0] = MLX4_FS_UC_SNIFFER;
|
|
type[1] = MLX4_FS_MC_SNIFFER;
|
|
break;
|
|
|
|
default:
|
|
err = -EINVAL;
|
|
goto err_free;
|
|
}
|
|
|
|
while (i < ARRAY_SIZE(type) && type[i]) {
|
|
err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i],
|
|
&mflow->reg_id[i].id);
|
|
if (err)
|
|
goto err_create_flow;
|
|
if (is_bonded) {
|
|
/* Application always sees one port so the mirror rule
|
|
* must be on port #2
|
|
*/
|
|
flow_attr->port = 2;
|
|
err = __mlx4_ib_create_flow(qp, flow_attr,
|
|
domain, type[j],
|
|
&mflow->reg_id[j].mirror);
|
|
flow_attr->port = 1;
|
|
if (err)
|
|
goto err_create_flow;
|
|
j++;
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) {
|
|
err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
|
|
&mflow->reg_id[i].id);
|
|
if (err)
|
|
goto err_create_flow;
|
|
|
|
if (is_bonded) {
|
|
flow_attr->port = 2;
|
|
err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
|
|
&mflow->reg_id[j].mirror);
|
|
flow_attr->port = 1;
|
|
if (err)
|
|
goto err_create_flow;
|
|
j++;
|
|
}
|
|
/* function to create mirror rule */
|
|
i++;
|
|
}
|
|
|
|
return &mflow->ibflow;
|
|
|
|
err_create_flow:
|
|
while (i) {
|
|
(void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
|
|
mflow->reg_id[i].id);
|
|
i--;
|
|
}
|
|
|
|
while (j) {
|
|
(void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
|
|
mflow->reg_id[j].mirror);
|
|
j--;
|
|
}
|
|
err_free:
|
|
kfree(mflow);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
|
|
{
|
|
int err, ret = 0;
|
|
int i = 0;
|
|
struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
|
|
struct mlx4_ib_flow *mflow = to_mflow(flow_id);
|
|
|
|
while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) {
|
|
err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id);
|
|
if (err)
|
|
ret = err;
|
|
if (mflow->reg_id[i].mirror) {
|
|
err = __mlx4_ib_destroy_flow(mdev->dev,
|
|
mflow->reg_id[i].mirror);
|
|
if (err)
|
|
ret = err;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
kfree(mflow);
|
|
return ret;
|
|
}
|
|
|
|
static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
|
|
{
|
|
int err;
|
|
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
|
|
struct mlx4_dev *dev = mdev->dev;
|
|
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
|
|
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, 64);
|
|
|
|
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
|
|
|
|
err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
|
|
memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
|
|
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
static ssize_t show_hca(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx4_ib_dev *dev =
|
|
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device);
|
|
}
|
|
|
|
static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx4_ib_dev *dev =
|
|
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
|
|
(int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
|
|
(int) dev->dev->caps.fw_ver & 0xffff);
|
|
}
|
|
|
|
static ssize_t show_rev(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx4_ib_dev *dev =
|
|
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "%x\n", dev->dev->rev_id);
|
|
}
|
|
|
|
static ssize_t show_board(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx4_ib_dev *dev =
|
|
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
|
|
dev->dev->board_id);
|
|
}
|
|
|
|
static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
|
|
static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
|
|
static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
|
|
static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
|
|
|
|
static struct device_attribute *mlx4_class_attributes[] = {
|
|
&dev_attr_hw_rev,
|
|
&dev_attr_fw_ver,
|
|
&dev_attr_hca_type,
|
|
&dev_attr_board_id
|
|
};
|
|
|
|
#define MLX4_IB_INVALID_MAC ((u64)-1)
|
|
static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
|
|
struct net_device *dev,
|
|
int port)
|
|
{
|
|
u64 new_smac = 0;
|
|
u64 release_mac = MLX4_IB_INVALID_MAC;
|
|
struct mlx4_ib_qp *qp;
|
|
|
|
read_lock(&dev_base_lock);
|
|
new_smac = mlx4_mac_to_u64(dev->dev_addr);
|
|
read_unlock(&dev_base_lock);
|
|
|
|
atomic64_set(&ibdev->iboe.mac[port - 1], new_smac);
|
|
|
|
/* no need for update QP1 and mac registration in non-SRIOV */
|
|
if (!mlx4_is_mfunc(ibdev->dev))
|
|
return;
|
|
|
|
mutex_lock(&ibdev->qp1_proxy_lock[port - 1]);
|
|
qp = ibdev->qp1_proxy[port - 1];
|
|
if (qp) {
|
|
int new_smac_index;
|
|
u64 old_smac;
|
|
struct mlx4_update_qp_params update_params;
|
|
|
|
mutex_lock(&qp->mutex);
|
|
old_smac = qp->pri.smac;
|
|
if (new_smac == old_smac)
|
|
goto unlock;
|
|
|
|
new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac);
|
|
|
|
if (new_smac_index < 0)
|
|
goto unlock;
|
|
|
|
update_params.smac_index = new_smac_index;
|
|
if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC,
|
|
&update_params)) {
|
|
release_mac = new_smac;
|
|
goto unlock;
|
|
}
|
|
/* if old port was zero, no mac was yet registered for this QP */
|
|
if (qp->pri.smac_port)
|
|
release_mac = old_smac;
|
|
qp->pri.smac = new_smac;
|
|
qp->pri.smac_port = port;
|
|
qp->pri.smac_index = new_smac_index;
|
|
}
|
|
|
|
unlock:
|
|
if (release_mac != MLX4_IB_INVALID_MAC)
|
|
mlx4_unregister_mac(ibdev->dev, port, release_mac);
|
|
if (qp)
|
|
mutex_unlock(&qp->mutex);
|
|
mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]);
|
|
}
|
|
|
|
static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
|
|
struct net_device *dev,
|
|
unsigned long event)
|
|
|
|
{
|
|
struct mlx4_ib_iboe *iboe;
|
|
int update_qps_port = -1;
|
|
int port;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
iboe = &ibdev->iboe;
|
|
|
|
spin_lock_bh(&iboe->lock);
|
|
mlx4_foreach_ib_transport_port(port, ibdev->dev) {
|
|
|
|
iboe->netdevs[port - 1] =
|
|
mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
|
|
|
|
if (dev == iboe->netdevs[port - 1] &&
|
|
(event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
|
|
event == NETDEV_UP || event == NETDEV_CHANGE))
|
|
update_qps_port = port;
|
|
|
|
}
|
|
spin_unlock_bh(&iboe->lock);
|
|
|
|
if (update_qps_port > 0)
|
|
mlx4_ib_update_qps(ibdev, dev, update_qps_port);
|
|
}
|
|
|
|
static int mlx4_ib_netdev_event(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
|
|
struct mlx4_ib_dev *ibdev;
|
|
|
|
if (!net_eq(dev_net(dev), &init_net))
|
|
return NOTIFY_DONE;
|
|
|
|
ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
|
|
mlx4_ib_scan_netdevs(ibdev, dev, event);
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static void init_pkeys(struct mlx4_ib_dev *ibdev)
|
|
{
|
|
int port;
|
|
int slave;
|
|
int i;
|
|
|
|
if (mlx4_is_master(ibdev->dev)) {
|
|
for (slave = 0; slave <= ibdev->dev->persist->num_vfs;
|
|
++slave) {
|
|
for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
|
|
for (i = 0;
|
|
i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
|
|
++i) {
|
|
ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
|
|
/* master has the identity virt2phys pkey mapping */
|
|
(slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
|
|
ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
|
|
mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
|
|
ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
|
|
}
|
|
}
|
|
}
|
|
/* initialize pkey cache */
|
|
for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
|
|
for (i = 0;
|
|
i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
|
|
++i)
|
|
ibdev->pkeys.phys_pkey_cache[port-1][i] =
|
|
(i) ? 0 : 0xFFFF;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
|
|
{
|
|
int i, j, eq = 0, total_eqs = 0;
|
|
|
|
ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors,
|
|
sizeof(ibdev->eq_table[0]), GFP_KERNEL);
|
|
if (!ibdev->eq_table)
|
|
return;
|
|
|
|
for (i = 1; i <= dev->caps.num_ports; i++) {
|
|
for (j = 0; j < mlx4_get_eqs_per_port(dev, i);
|
|
j++, total_eqs++) {
|
|
if (i > 1 && mlx4_is_eq_shared(dev, total_eqs))
|
|
continue;
|
|
ibdev->eq_table[eq] = total_eqs;
|
|
if (!mlx4_assign_eq(dev, i,
|
|
&ibdev->eq_table[eq]))
|
|
eq++;
|
|
else
|
|
ibdev->eq_table[eq] = -1;
|
|
}
|
|
}
|
|
|
|
for (i = eq; i < dev->caps.num_comp_vectors;
|
|
ibdev->eq_table[i++] = -1)
|
|
;
|
|
|
|
/* Advertise the new number of EQs to clients */
|
|
ibdev->ib_dev.num_comp_vectors = eq;
|
|
}
|
|
|
|
static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
|
|
{
|
|
int i;
|
|
int total_eqs = ibdev->ib_dev.num_comp_vectors;
|
|
|
|
/* no eqs were allocated */
|
|
if (!ibdev->eq_table)
|
|
return;
|
|
|
|
/* Reset the advertised EQ number */
|
|
ibdev->ib_dev.num_comp_vectors = 0;
|
|
|
|
for (i = 0; i < total_eqs; i++)
|
|
mlx4_release_eq(dev, ibdev->eq_table[i]);
|
|
|
|
kfree(ibdev->eq_table);
|
|
ibdev->eq_table = NULL;
|
|
}
|
|
|
|
static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num,
|
|
struct ib_port_immutable *immutable)
|
|
{
|
|
struct ib_port_attr attr;
|
|
int err;
|
|
|
|
err = mlx4_ib_query_port(ibdev, port_num, &attr);
|
|
if (err)
|
|
return err;
|
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len;
|
|
immutable->gid_tbl_len = attr.gid_tbl_len;
|
|
|
|
if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND)
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
|
|
else
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
|
|
|
|
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void *mlx4_ib_add(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_ib_dev *ibdev;
|
|
int num_ports = 0;
|
|
int i, j;
|
|
int err;
|
|
struct mlx4_ib_iboe *iboe;
|
|
int ib_num_ports = 0;
|
|
int num_req_counters;
|
|
int allocated;
|
|
u32 counter_index;
|
|
struct counter_index *new_counter_index = NULL;
|
|
|
|
pr_info_once("%s", mlx4_ib_version);
|
|
|
|
num_ports = 0;
|
|
mlx4_foreach_ib_transport_port(i, dev)
|
|
num_ports++;
|
|
|
|
/* No point in registering a device with no ports... */
|
|
if (num_ports == 0)
|
|
return NULL;
|
|
|
|
ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
|
|
if (!ibdev) {
|
|
dev_err(&dev->persist->pdev->dev,
|
|
"Device struct alloc failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
iboe = &ibdev->iboe;
|
|
|
|
if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
|
|
goto err_dealloc;
|
|
|
|
if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
|
|
goto err_pd;
|
|
|
|
ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
|
|
PAGE_SIZE);
|
|
if (!ibdev->uar_map)
|
|
goto err_uar;
|
|
MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
|
|
|
|
ibdev->dev = dev;
|
|
ibdev->bond_next_port = 0;
|
|
|
|
strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
|
|
ibdev->ib_dev.owner = THIS_MODULE;
|
|
ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
|
|
ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
|
|
ibdev->num_ports = num_ports;
|
|
ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ?
|
|
1 : ibdev->num_ports;
|
|
ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
|
|
ibdev->ib_dev.dma_device = &dev->persist->pdev->dev;
|
|
ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev;
|
|
ibdev->ib_dev.add_gid = mlx4_ib_add_gid;
|
|
ibdev->ib_dev.del_gid = mlx4_ib_del_gid;
|
|
|
|
if (dev->caps.userspace_caps)
|
|
ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
|
|
else
|
|
ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
|
|
|
|
ibdev->ib_dev.uverbs_cmd_mask =
|
|
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
|
|
(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
|
|
(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
|
|
(1ull << IB_USER_VERBS_CMD_REG_MR) |
|
|
(1ull << IB_USER_VERBS_CMD_REREG_MR) |
|
|
(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
|
|
(1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
|
|
(1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
|
|
(1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
|
|
(1ull << IB_USER_VERBS_CMD_OPEN_QP);
|
|
|
|
ibdev->ib_dev.query_device = mlx4_ib_query_device;
|
|
ibdev->ib_dev.query_port = mlx4_ib_query_port;
|
|
ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
|
|
ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
|
|
ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
|
|
ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
|
|
ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
|
|
ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
|
|
ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
|
|
ibdev->ib_dev.mmap = mlx4_ib_mmap;
|
|
ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
|
|
ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
|
|
ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
|
|
ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
|
|
ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
|
|
ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
|
|
ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
|
|
ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
|
|
ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
|
|
ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
|
|
ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
|
|
ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
|
|
ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
|
|
ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
|
|
ibdev->ib_dev.post_send = mlx4_ib_post_send;
|
|
ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
|
|
ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
|
|
ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
|
|
ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
|
|
ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
|
|
ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
|
|
ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
|
|
ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
|
|
ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
|
|
ibdev->ib_dev.rereg_user_mr = mlx4_ib_rereg_user_mr;
|
|
ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
|
|
ibdev->ib_dev.alloc_mr = mlx4_ib_alloc_mr;
|
|
ibdev->ib_dev.map_mr_sg = mlx4_ib_map_mr_sg;
|
|
ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
|
|
ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
|
|
ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
|
|
ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
|
|
ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
|
|
ibdev->ib_dev.get_port_immutable = mlx4_port_immutable;
|
|
ibdev->ib_dev.disassociate_ucontext = mlx4_ib_disassociate_ucontext;
|
|
|
|
if (!mlx4_is_slave(ibdev->dev)) {
|
|
ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
|
|
ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
|
|
ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
|
|
ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
|
|
}
|
|
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
|
|
dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
|
|
ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
|
|
ibdev->ib_dev.bind_mw = mlx4_ib_bind_mw;
|
|
ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
|
|
|
|
ibdev->ib_dev.uverbs_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
|
|
(1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
|
|
}
|
|
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
|
|
ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
|
|
ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
|
|
ibdev->ib_dev.uverbs_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
|
|
(1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
|
|
}
|
|
|
|
if (check_flow_steering_support(dev)) {
|
|
ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED;
|
|
ibdev->ib_dev.create_flow = mlx4_ib_create_flow;
|
|
ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow;
|
|
|
|
ibdev->ib_dev.uverbs_ex_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
|
|
}
|
|
|
|
ibdev->ib_dev.uverbs_ex_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_CREATE_QP);
|
|
|
|
mlx4_ib_alloc_eqs(dev, ibdev);
|
|
|
|
spin_lock_init(&iboe->lock);
|
|
|
|
if (init_node_data(ibdev))
|
|
goto err_map;
|
|
|
|
for (i = 0; i < ibdev->num_ports; ++i) {
|
|
mutex_init(&ibdev->counters_table[i].mutex);
|
|
INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
|
|
}
|
|
|
|
num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;
|
|
for (i = 0; i < num_req_counters; ++i) {
|
|
mutex_init(&ibdev->qp1_proxy_lock[i]);
|
|
allocated = 0;
|
|
if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
|
|
IB_LINK_LAYER_ETHERNET) {
|
|
err = mlx4_counter_alloc(ibdev->dev, &counter_index);
|
|
/* 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);
|
|
if (err)
|
|
goto err_counter;
|
|
|
|
ibdev->ib_uc_qpns_bitmap =
|
|
kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
|
|
sizeof(long),
|
|
GFP_KERNEL);
|
|
if (!ibdev->ib_uc_qpns_bitmap) {
|
|
dev_err(&dev->persist->pdev->dev,
|
|
"bit map alloc failed\n");
|
|
goto err_steer_qp_release;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
|
|
atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]);
|
|
|
|
if (ib_register_device(&ibdev->ib_dev, NULL))
|
|
goto err_steer_free_bitmap;
|
|
|
|
if (mlx4_ib_mad_init(ibdev))
|
|
goto err_reg;
|
|
|
|
if (mlx4_ib_init_sriov(ibdev))
|
|
goto err_mad;
|
|
|
|
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) {
|
|
if (!iboe->nb.notifier_call) {
|
|
iboe->nb.notifier_call = mlx4_ib_netdev_event;
|
|
err = register_netdevice_notifier(&iboe->nb);
|
|
if (err) {
|
|
iboe->nb.notifier_call = NULL;
|
|
goto err_notif;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
|
|
if (device_create_file(&ibdev->ib_dev.dev,
|
|
mlx4_class_attributes[j]))
|
|
goto err_notif;
|
|
}
|
|
|
|
ibdev->ib_active = true;
|
|
|
|
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_steer_free_bitmap:
|
|
kfree(ibdev->ib_uc_qpns_bitmap);
|
|
|
|
err_steer_qp_release:
|
|
if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
|
|
mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
|
|
ibdev->steer_qpn_count);
|
|
err_counter:
|
|
for (i = 0; i < ibdev->num_ports; ++i)
|
|
mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
|
|
|
|
err_map:
|
|
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;
|
|
|
|
BUG_ON(qpn < dev->steer_qpn_base);
|
|
|
|
bitmap_release_region(dev->ib_uc_qpns_bitmap,
|
|
qpn - dev->steer_qpn_base,
|
|
get_count_order(count));
|
|
}
|
|
|
|
int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
|
|
int is_attach)
|
|
{
|
|
int err;
|
|
size_t flow_size;
|
|
struct ib_flow_attr *flow = NULL;
|
|
struct ib_flow_spec_ib *ib_spec;
|
|
|
|
if (is_attach) {
|
|
flow_size = sizeof(struct ib_flow_attr) +
|
|
sizeof(struct ib_flow_spec_ib);
|
|
flow = kzalloc(flow_size, GFP_KERNEL);
|
|
if (!flow)
|
|
return -ENOMEM;
|
|
flow->port = mqp->port;
|
|
flow->num_of_specs = 1;
|
|
flow->size = flow_size;
|
|
ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
|
|
ib_spec->type = IB_FLOW_SPEC_IB;
|
|
ib_spec->size = sizeof(struct ib_flow_spec_ib);
|
|
/* Add an empty rule for IB L2 */
|
|
memset(&ib_spec->mask, 0, sizeof(ib_spec->mask));
|
|
|
|
err = __mlx4_ib_create_flow(&mqp->ibqp, flow,
|
|
IB_FLOW_DOMAIN_NIC,
|
|
MLX4_FS_REGULAR,
|
|
&mqp->reg_id);
|
|
} else {
|
|
err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
|
|
}
|
|
kfree(flow);
|
|
return err;
|
|
}
|
|
|
|
static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
|
|
{
|
|
struct mlx4_ib_dev *ibdev = ibdev_ptr;
|
|
int p;
|
|
|
|
ibdev->ib_active = false;
|
|
flush_workqueue(wq);
|
|
|
|
mlx4_ib_close_sriov(ibdev);
|
|
mlx4_ib_mad_cleanup(ibdev);
|
|
ib_unregister_device(&ibdev->ib_dev);
|
|
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;
|
|
}
|
|
|
|
if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) {
|
|
mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
|
|
ibdev->steer_qpn_count);
|
|
kfree(ibdev->ib_uc_qpns_bitmap);
|
|
}
|
|
|
|
iounmap(ibdev->uar_map);
|
|
for (p = 0; p < ibdev->num_ports; ++p)
|
|
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) {
|
|
pr_err("failed to allocate memory for tunneling qp update\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < ports; i++) {
|
|
dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
|
|
if (!dm[i]) {
|
|
pr_err("failed to allocate memory for tunneling qp update work struct\n");
|
|
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);
|
|
}
|
|
|
|
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_master(dev) &&
|
|
rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
|
|
IB_LINK_LAYER_INFINIBAND) {
|
|
mlx4_ib_invalidate_all_guid_record(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) {
|
|
pr_err("failed to allocate memory for events work\n");
|
|
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 = create_singlethread_workqueue("mlx4_ib");
|
|
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);
|