6461 lines
172 KiB
C
6461 lines
172 KiB
C
/*
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* Copyright (c) 2013-2015, 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/debugfs.h>
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#include <linux/highmem.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/bitmap.h>
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#if defined(CONFIG_X86)
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#include <asm/pat.h>
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#endif
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#include <linux/sched.h>
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#include <linux/sched/mm.h>
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#include <linux/sched/task.h>
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#include <linux/delay.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 <linux/mlx5/port.h>
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#include <linux/mlx5/vport.h>
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#include <linux/mlx5/fs.h>
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#include <linux/list.h>
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#include <rdma/ib_smi.h>
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#include <rdma/ib_umem.h>
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#include <linux/in.h>
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#include <linux/etherdevice.h>
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#include "mlx5_ib.h"
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#include "ib_rep.h"
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#include "cmd.h"
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#include <linux/mlx5/fs_helpers.h>
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#include <linux/mlx5/accel.h>
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#include <rdma/uverbs_std_types.h>
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#include <rdma/mlx5_user_ioctl_verbs.h>
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#include <rdma/mlx5_user_ioctl_cmds.h>
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#define UVERBS_MODULE_NAME mlx5_ib
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#include <rdma/uverbs_named_ioctl.h>
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#define DRIVER_NAME "mlx5_ib"
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#define DRIVER_VERSION "5.0-0"
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MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>");
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MODULE_DESCRIPTION("Mellanox Connect-IB HCA IB driver");
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MODULE_LICENSE("Dual BSD/GPL");
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static char mlx5_version[] =
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DRIVER_NAME ": Mellanox Connect-IB Infiniband driver v"
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DRIVER_VERSION "\n";
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struct mlx5_ib_event_work {
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struct work_struct work;
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struct mlx5_core_dev *dev;
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void *context;
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enum mlx5_dev_event event;
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unsigned long param;
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};
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enum {
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MLX5_ATOMIC_SIZE_QP_8BYTES = 1 << 3,
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};
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static struct workqueue_struct *mlx5_ib_event_wq;
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static LIST_HEAD(mlx5_ib_unaffiliated_port_list);
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static LIST_HEAD(mlx5_ib_dev_list);
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/*
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* This mutex should be held when accessing either of the above lists
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*/
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static DEFINE_MUTEX(mlx5_ib_multiport_mutex);
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/* We can't use an array for xlt_emergency_page because dma_map_single
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* doesn't work on kernel modules memory
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*/
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static unsigned long xlt_emergency_page;
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static struct mutex xlt_emergency_page_mutex;
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struct mlx5_ib_dev *mlx5_ib_get_ibdev_from_mpi(struct mlx5_ib_multiport_info *mpi)
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{
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struct mlx5_ib_dev *dev;
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mutex_lock(&mlx5_ib_multiport_mutex);
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dev = mpi->ibdev;
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mutex_unlock(&mlx5_ib_multiport_mutex);
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return dev;
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}
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static enum rdma_link_layer
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mlx5_port_type_cap_to_rdma_ll(int port_type_cap)
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{
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switch (port_type_cap) {
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case MLX5_CAP_PORT_TYPE_IB:
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return IB_LINK_LAYER_INFINIBAND;
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case MLX5_CAP_PORT_TYPE_ETH:
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return IB_LINK_LAYER_ETHERNET;
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default:
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return IB_LINK_LAYER_UNSPECIFIED;
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}
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}
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static enum rdma_link_layer
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mlx5_ib_port_link_layer(struct ib_device *device, u8 port_num)
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{
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struct mlx5_ib_dev *dev = to_mdev(device);
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int port_type_cap = MLX5_CAP_GEN(dev->mdev, port_type);
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return mlx5_port_type_cap_to_rdma_ll(port_type_cap);
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}
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static int get_port_state(struct ib_device *ibdev,
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u8 port_num,
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enum ib_port_state *state)
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{
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struct ib_port_attr attr;
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int ret;
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memset(&attr, 0, sizeof(attr));
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ret = ibdev->query_port(ibdev, port_num, &attr);
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if (!ret)
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*state = attr.state;
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return ret;
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}
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static int mlx5_netdev_event(struct notifier_block *this,
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unsigned long event, void *ptr)
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{
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struct mlx5_roce *roce = container_of(this, struct mlx5_roce, nb);
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struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
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u8 port_num = roce->native_port_num;
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struct mlx5_core_dev *mdev;
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struct mlx5_ib_dev *ibdev;
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ibdev = roce->dev;
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mdev = mlx5_ib_get_native_port_mdev(ibdev, port_num, NULL);
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if (!mdev)
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return NOTIFY_DONE;
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switch (event) {
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case NETDEV_REGISTER:
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case NETDEV_UNREGISTER:
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write_lock(&roce->netdev_lock);
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if (ibdev->rep) {
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struct mlx5_eswitch *esw = ibdev->mdev->priv.eswitch;
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struct net_device *rep_ndev;
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rep_ndev = mlx5_ib_get_rep_netdev(esw,
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ibdev->rep->vport);
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if (rep_ndev == ndev)
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roce->netdev = (event == NETDEV_UNREGISTER) ?
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NULL : ndev;
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} else if (ndev->dev.parent == &mdev->pdev->dev) {
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roce->netdev = (event == NETDEV_UNREGISTER) ?
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NULL : ndev;
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}
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write_unlock(&roce->netdev_lock);
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break;
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case NETDEV_CHANGE:
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case NETDEV_UP:
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case NETDEV_DOWN: {
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struct net_device *lag_ndev = mlx5_lag_get_roce_netdev(mdev);
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struct net_device *upper = NULL;
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if (lag_ndev) {
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upper = netdev_master_upper_dev_get(lag_ndev);
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dev_put(lag_ndev);
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}
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if ((upper == ndev || (!upper && ndev == roce->netdev))
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&& ibdev->ib_active) {
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struct ib_event ibev = { };
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enum ib_port_state port_state;
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if (get_port_state(&ibdev->ib_dev, port_num,
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&port_state))
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goto done;
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if (roce->last_port_state == port_state)
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goto done;
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roce->last_port_state = port_state;
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ibev.device = &ibdev->ib_dev;
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if (port_state == IB_PORT_DOWN)
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ibev.event = IB_EVENT_PORT_ERR;
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else if (port_state == IB_PORT_ACTIVE)
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ibev.event = IB_EVENT_PORT_ACTIVE;
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else
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goto done;
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ibev.element.port_num = port_num;
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ib_dispatch_event(&ibev);
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}
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break;
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}
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default:
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break;
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}
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done:
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mlx5_ib_put_native_port_mdev(ibdev, port_num);
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return NOTIFY_DONE;
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}
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static struct net_device *mlx5_ib_get_netdev(struct ib_device *device,
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u8 port_num)
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{
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struct mlx5_ib_dev *ibdev = to_mdev(device);
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struct net_device *ndev;
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struct mlx5_core_dev *mdev;
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mdev = mlx5_ib_get_native_port_mdev(ibdev, port_num, NULL);
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if (!mdev)
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return NULL;
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ndev = mlx5_lag_get_roce_netdev(mdev);
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if (ndev)
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goto out;
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/* Ensure ndev does not disappear before we invoke dev_hold()
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*/
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read_lock(&ibdev->roce[port_num - 1].netdev_lock);
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ndev = ibdev->roce[port_num - 1].netdev;
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if (ndev)
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dev_hold(ndev);
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read_unlock(&ibdev->roce[port_num - 1].netdev_lock);
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out:
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mlx5_ib_put_native_port_mdev(ibdev, port_num);
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return ndev;
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}
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struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *ibdev,
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u8 ib_port_num,
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u8 *native_port_num)
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{
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enum rdma_link_layer ll = mlx5_ib_port_link_layer(&ibdev->ib_dev,
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ib_port_num);
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struct mlx5_core_dev *mdev = NULL;
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struct mlx5_ib_multiport_info *mpi;
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struct mlx5_ib_port *port;
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if (!mlx5_core_mp_enabled(ibdev->mdev) ||
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ll != IB_LINK_LAYER_ETHERNET) {
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if (native_port_num)
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*native_port_num = ib_port_num;
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return ibdev->mdev;
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}
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if (native_port_num)
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*native_port_num = 1;
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port = &ibdev->port[ib_port_num - 1];
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if (!port)
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return NULL;
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spin_lock(&port->mp.mpi_lock);
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mpi = ibdev->port[ib_port_num - 1].mp.mpi;
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if (mpi && !mpi->unaffiliate) {
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mdev = mpi->mdev;
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/* If it's the master no need to refcount, it'll exist
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* as long as the ib_dev exists.
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*/
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if (!mpi->is_master)
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mpi->mdev_refcnt++;
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}
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spin_unlock(&port->mp.mpi_lock);
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return mdev;
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}
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void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *ibdev, u8 port_num)
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{
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enum rdma_link_layer ll = mlx5_ib_port_link_layer(&ibdev->ib_dev,
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port_num);
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struct mlx5_ib_multiport_info *mpi;
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struct mlx5_ib_port *port;
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if (!mlx5_core_mp_enabled(ibdev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
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return;
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port = &ibdev->port[port_num - 1];
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spin_lock(&port->mp.mpi_lock);
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mpi = ibdev->port[port_num - 1].mp.mpi;
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if (mpi->is_master)
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goto out;
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mpi->mdev_refcnt--;
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if (mpi->unaffiliate)
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complete(&mpi->unref_comp);
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out:
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spin_unlock(&port->mp.mpi_lock);
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}
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static int translate_eth_proto_oper(u32 eth_proto_oper, u8 *active_speed,
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u8 *active_width)
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{
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switch (eth_proto_oper) {
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case MLX5E_PROT_MASK(MLX5E_1000BASE_CX_SGMII):
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case MLX5E_PROT_MASK(MLX5E_1000BASE_KX):
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case MLX5E_PROT_MASK(MLX5E_100BASE_TX):
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case MLX5E_PROT_MASK(MLX5E_1000BASE_T):
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*active_width = IB_WIDTH_1X;
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*active_speed = IB_SPEED_SDR;
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break;
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case MLX5E_PROT_MASK(MLX5E_10GBASE_T):
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case MLX5E_PROT_MASK(MLX5E_10GBASE_CX4):
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case MLX5E_PROT_MASK(MLX5E_10GBASE_KX4):
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case MLX5E_PROT_MASK(MLX5E_10GBASE_KR):
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case MLX5E_PROT_MASK(MLX5E_10GBASE_CR):
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case MLX5E_PROT_MASK(MLX5E_10GBASE_SR):
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case MLX5E_PROT_MASK(MLX5E_10GBASE_ER):
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*active_width = IB_WIDTH_1X;
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*active_speed = IB_SPEED_QDR;
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break;
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case MLX5E_PROT_MASK(MLX5E_25GBASE_CR):
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case MLX5E_PROT_MASK(MLX5E_25GBASE_KR):
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case MLX5E_PROT_MASK(MLX5E_25GBASE_SR):
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*active_width = IB_WIDTH_1X;
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*active_speed = IB_SPEED_EDR;
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break;
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case MLX5E_PROT_MASK(MLX5E_40GBASE_CR4):
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case MLX5E_PROT_MASK(MLX5E_40GBASE_KR4):
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case MLX5E_PROT_MASK(MLX5E_40GBASE_SR4):
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case MLX5E_PROT_MASK(MLX5E_40GBASE_LR4):
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*active_width = IB_WIDTH_4X;
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*active_speed = IB_SPEED_QDR;
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break;
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case MLX5E_PROT_MASK(MLX5E_50GBASE_CR2):
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case MLX5E_PROT_MASK(MLX5E_50GBASE_KR2):
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case MLX5E_PROT_MASK(MLX5E_50GBASE_SR2):
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*active_width = IB_WIDTH_1X;
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*active_speed = IB_SPEED_HDR;
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break;
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case MLX5E_PROT_MASK(MLX5E_56GBASE_R4):
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*active_width = IB_WIDTH_4X;
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*active_speed = IB_SPEED_FDR;
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break;
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case MLX5E_PROT_MASK(MLX5E_100GBASE_CR4):
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case MLX5E_PROT_MASK(MLX5E_100GBASE_SR4):
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case MLX5E_PROT_MASK(MLX5E_100GBASE_KR4):
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case MLX5E_PROT_MASK(MLX5E_100GBASE_LR4):
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*active_width = IB_WIDTH_4X;
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*active_speed = IB_SPEED_EDR;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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|
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static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
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struct ib_port_attr *props)
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{
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struct mlx5_ib_dev *dev = to_mdev(device);
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struct mlx5_core_dev *mdev;
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struct net_device *ndev, *upper;
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enum ib_mtu ndev_ib_mtu;
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bool put_mdev = true;
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u16 qkey_viol_cntr;
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u32 eth_prot_oper;
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u8 mdev_port_num;
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int err;
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mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num);
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if (!mdev) {
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/* This means the port isn't affiliated yet. Get the
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* info for the master port instead.
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*/
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put_mdev = false;
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mdev = dev->mdev;
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mdev_port_num = 1;
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port_num = 1;
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}
|
|
|
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/* Possible bad flows are checked before filling out props so in case
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* of an error it will still be zeroed out.
|
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*/
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err = mlx5_query_port_eth_proto_oper(mdev, ð_prot_oper,
|
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mdev_port_num);
|
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if (err)
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goto out;
|
|
|
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props->active_width = IB_WIDTH_4X;
|
|
props->active_speed = IB_SPEED_QDR;
|
|
|
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translate_eth_proto_oper(eth_prot_oper, &props->active_speed,
|
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&props->active_width);
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|
|
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props->port_cap_flags |= IB_PORT_CM_SUP;
|
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props->ip_gids = true;
|
|
|
|
props->gid_tbl_len = MLX5_CAP_ROCE(dev->mdev,
|
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roce_address_table_size);
|
|
props->max_mtu = IB_MTU_4096;
|
|
props->max_msg_sz = 1 << MLX5_CAP_GEN(dev->mdev, log_max_msg);
|
|
props->pkey_tbl_len = 1;
|
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props->state = IB_PORT_DOWN;
|
|
props->phys_state = 3;
|
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|
|
mlx5_query_nic_vport_qkey_viol_cntr(mdev, &qkey_viol_cntr);
|
|
props->qkey_viol_cntr = qkey_viol_cntr;
|
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|
|
/* If this is a stub query for an unaffiliated port stop here */
|
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if (!put_mdev)
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goto out;
|
|
|
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ndev = mlx5_ib_get_netdev(device, port_num);
|
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if (!ndev)
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goto out;
|
|
|
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if (mlx5_lag_is_active(dev->mdev)) {
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rcu_read_lock();
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|
upper = netdev_master_upper_dev_get_rcu(ndev);
|
|
if (upper) {
|
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dev_put(ndev);
|
|
ndev = upper;
|
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dev_hold(ndev);
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
if (netif_running(ndev) && netif_carrier_ok(ndev)) {
|
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props->state = IB_PORT_ACTIVE;
|
|
props->phys_state = 5;
|
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}
|
|
|
|
ndev_ib_mtu = iboe_get_mtu(ndev->mtu);
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|
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dev_put(ndev);
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|
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props->active_mtu = min(props->max_mtu, ndev_ib_mtu);
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out:
|
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if (put_mdev)
|
|
mlx5_ib_put_native_port_mdev(dev, port_num);
|
|
return err;
|
|
}
|
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|
|
static int set_roce_addr(struct mlx5_ib_dev *dev, u8 port_num,
|
|
unsigned int index, const union ib_gid *gid,
|
|
const struct ib_gid_attr *attr)
|
|
{
|
|
enum ib_gid_type gid_type = IB_GID_TYPE_IB;
|
|
u8 roce_version = 0;
|
|
u8 roce_l3_type = 0;
|
|
bool vlan = false;
|
|
u8 mac[ETH_ALEN];
|
|
u16 vlan_id = 0;
|
|
|
|
if (gid) {
|
|
gid_type = attr->gid_type;
|
|
ether_addr_copy(mac, attr->ndev->dev_addr);
|
|
|
|
if (is_vlan_dev(attr->ndev)) {
|
|
vlan = true;
|
|
vlan_id = vlan_dev_vlan_id(attr->ndev);
|
|
}
|
|
}
|
|
|
|
switch (gid_type) {
|
|
case IB_GID_TYPE_IB:
|
|
roce_version = MLX5_ROCE_VERSION_1;
|
|
break;
|
|
case IB_GID_TYPE_ROCE_UDP_ENCAP:
|
|
roce_version = MLX5_ROCE_VERSION_2;
|
|
if (ipv6_addr_v4mapped((void *)gid))
|
|
roce_l3_type = MLX5_ROCE_L3_TYPE_IPV4;
|
|
else
|
|
roce_l3_type = MLX5_ROCE_L3_TYPE_IPV6;
|
|
break;
|
|
|
|
default:
|
|
mlx5_ib_warn(dev, "Unexpected GID type %u\n", gid_type);
|
|
}
|
|
|
|
return mlx5_core_roce_gid_set(dev->mdev, index, roce_version,
|
|
roce_l3_type, gid->raw, mac, vlan,
|
|
vlan_id, port_num);
|
|
}
|
|
|
|
static int mlx5_ib_add_gid(const struct ib_gid_attr *attr,
|
|
__always_unused void **context)
|
|
{
|
|
return set_roce_addr(to_mdev(attr->device), attr->port_num,
|
|
attr->index, &attr->gid, attr);
|
|
}
|
|
|
|
static int mlx5_ib_del_gid(const struct ib_gid_attr *attr,
|
|
__always_unused void **context)
|
|
{
|
|
return set_roce_addr(to_mdev(attr->device), attr->port_num,
|
|
attr->index, NULL, NULL);
|
|
}
|
|
|
|
__be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev,
|
|
const struct ib_gid_attr *attr)
|
|
{
|
|
if (attr->gid_type != IB_GID_TYPE_ROCE_UDP_ENCAP)
|
|
return 0;
|
|
|
|
return cpu_to_be16(MLX5_CAP_ROCE(dev->mdev, r_roce_min_src_udp_port));
|
|
}
|
|
|
|
static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev)
|
|
{
|
|
if (MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_IB)
|
|
return !MLX5_CAP_GEN(dev->mdev, ib_virt);
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
MLX5_VPORT_ACCESS_METHOD_MAD,
|
|
MLX5_VPORT_ACCESS_METHOD_HCA,
|
|
MLX5_VPORT_ACCESS_METHOD_NIC,
|
|
};
|
|
|
|
static int mlx5_get_vport_access_method(struct ib_device *ibdev)
|
|
{
|
|
if (mlx5_use_mad_ifc(to_mdev(ibdev)))
|
|
return MLX5_VPORT_ACCESS_METHOD_MAD;
|
|
|
|
if (mlx5_ib_port_link_layer(ibdev, 1) ==
|
|
IB_LINK_LAYER_ETHERNET)
|
|
return MLX5_VPORT_ACCESS_METHOD_NIC;
|
|
|
|
return MLX5_VPORT_ACCESS_METHOD_HCA;
|
|
}
|
|
|
|
static void get_atomic_caps(struct mlx5_ib_dev *dev,
|
|
u8 atomic_size_qp,
|
|
struct ib_device_attr *props)
|
|
{
|
|
u8 tmp;
|
|
u8 atomic_operations = MLX5_CAP_ATOMIC(dev->mdev, atomic_operations);
|
|
u8 atomic_req_8B_endianness_mode =
|
|
MLX5_CAP_ATOMIC(dev->mdev, atomic_req_8B_endianness_mode);
|
|
|
|
/* Check if HW supports 8 bytes standard atomic operations and capable
|
|
* of host endianness respond
|
|
*/
|
|
tmp = MLX5_ATOMIC_OPS_CMP_SWAP | MLX5_ATOMIC_OPS_FETCH_ADD;
|
|
if (((atomic_operations & tmp) == tmp) &&
|
|
(atomic_size_qp & MLX5_ATOMIC_SIZE_QP_8BYTES) &&
|
|
(atomic_req_8B_endianness_mode)) {
|
|
props->atomic_cap = IB_ATOMIC_HCA;
|
|
} else {
|
|
props->atomic_cap = IB_ATOMIC_NONE;
|
|
}
|
|
}
|
|
|
|
static void get_atomic_caps_qp(struct mlx5_ib_dev *dev,
|
|
struct ib_device_attr *props)
|
|
{
|
|
u8 atomic_size_qp = MLX5_CAP_ATOMIC(dev->mdev, atomic_size_qp);
|
|
|
|
get_atomic_caps(dev, atomic_size_qp, props);
|
|
}
|
|
|
|
static void get_atomic_caps_dc(struct mlx5_ib_dev *dev,
|
|
struct ib_device_attr *props)
|
|
{
|
|
u8 atomic_size_qp = MLX5_CAP_ATOMIC(dev->mdev, atomic_size_dc);
|
|
|
|
get_atomic_caps(dev, atomic_size_qp, props);
|
|
}
|
|
|
|
bool mlx5_ib_dc_atomic_is_supported(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct ib_device_attr props = {};
|
|
|
|
get_atomic_caps_dc(dev, &props);
|
|
return (props.atomic_cap == IB_ATOMIC_HCA) ? true : false;
|
|
}
|
|
static int mlx5_query_system_image_guid(struct ib_device *ibdev,
|
|
__be64 *sys_image_guid)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
u64 tmp;
|
|
int err;
|
|
|
|
switch (mlx5_get_vport_access_method(ibdev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
return mlx5_query_mad_ifc_system_image_guid(ibdev,
|
|
sys_image_guid);
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
err = mlx5_query_hca_vport_system_image_guid(mdev, &tmp);
|
|
break;
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_NIC:
|
|
err = mlx5_query_nic_vport_system_image_guid(mdev, &tmp);
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!err)
|
|
*sys_image_guid = cpu_to_be64(tmp);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
static int mlx5_query_max_pkeys(struct ib_device *ibdev,
|
|
u16 *max_pkeys)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
|
|
switch (mlx5_get_vport_access_method(ibdev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
return mlx5_query_mad_ifc_max_pkeys(ibdev, max_pkeys);
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
case MLX5_VPORT_ACCESS_METHOD_NIC:
|
|
*max_pkeys = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev,
|
|
pkey_table_size));
|
|
return 0;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int mlx5_query_vendor_id(struct ib_device *ibdev,
|
|
u32 *vendor_id)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
|
|
switch (mlx5_get_vport_access_method(ibdev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
return mlx5_query_mad_ifc_vendor_id(ibdev, vendor_id);
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
case MLX5_VPORT_ACCESS_METHOD_NIC:
|
|
return mlx5_core_query_vendor_id(dev->mdev, vendor_id);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int mlx5_query_node_guid(struct mlx5_ib_dev *dev,
|
|
__be64 *node_guid)
|
|
{
|
|
u64 tmp;
|
|
int err;
|
|
|
|
switch (mlx5_get_vport_access_method(&dev->ib_dev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
return mlx5_query_mad_ifc_node_guid(dev, node_guid);
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
err = mlx5_query_hca_vport_node_guid(dev->mdev, &tmp);
|
|
break;
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_NIC:
|
|
err = mlx5_query_nic_vport_node_guid(dev->mdev, &tmp);
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!err)
|
|
*node_guid = cpu_to_be64(tmp);
|
|
|
|
return err;
|
|
}
|
|
|
|
struct mlx5_reg_node_desc {
|
|
u8 desc[IB_DEVICE_NODE_DESC_MAX];
|
|
};
|
|
|
|
static int mlx5_query_node_desc(struct mlx5_ib_dev *dev, char *node_desc)
|
|
{
|
|
struct mlx5_reg_node_desc in;
|
|
|
|
if (mlx5_use_mad_ifc(dev))
|
|
return mlx5_query_mad_ifc_node_desc(dev, node_desc);
|
|
|
|
memset(&in, 0, sizeof(in));
|
|
|
|
return mlx5_core_access_reg(dev->mdev, &in, sizeof(in), node_desc,
|
|
sizeof(struct mlx5_reg_node_desc),
|
|
MLX5_REG_NODE_DESC, 0, 0);
|
|
}
|
|
|
|
static int mlx5_ib_query_device(struct ib_device *ibdev,
|
|
struct ib_device_attr *props,
|
|
struct ib_udata *uhw)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
int err = -ENOMEM;
|
|
int max_sq_desc;
|
|
int max_rq_sg;
|
|
int max_sq_sg;
|
|
u64 min_page_size = 1ull << MLX5_CAP_GEN(mdev, log_pg_sz);
|
|
bool raw_support = !mlx5_core_mp_enabled(mdev);
|
|
struct mlx5_ib_query_device_resp resp = {};
|
|
size_t resp_len;
|
|
u64 max_tso;
|
|
|
|
resp_len = sizeof(resp.comp_mask) + sizeof(resp.response_length);
|
|
if (uhw->outlen && uhw->outlen < resp_len)
|
|
return -EINVAL;
|
|
else
|
|
resp.response_length = resp_len;
|
|
|
|
if (uhw->inlen && !ib_is_udata_cleared(uhw, 0, uhw->inlen))
|
|
return -EINVAL;
|
|
|
|
memset(props, 0, sizeof(*props));
|
|
err = mlx5_query_system_image_guid(ibdev,
|
|
&props->sys_image_guid);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_query_max_pkeys(ibdev, &props->max_pkeys);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_query_vendor_id(ibdev, &props->vendor_id);
|
|
if (err)
|
|
return err;
|
|
|
|
props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) |
|
|
(fw_rev_min(dev->mdev) << 16) |
|
|
fw_rev_sub(dev->mdev);
|
|
props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
|
|
IB_DEVICE_PORT_ACTIVE_EVENT |
|
|
IB_DEVICE_SYS_IMAGE_GUID |
|
|
IB_DEVICE_RC_RNR_NAK_GEN;
|
|
|
|
if (MLX5_CAP_GEN(mdev, pkv))
|
|
props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
|
|
if (MLX5_CAP_GEN(mdev, qkv))
|
|
props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
|
|
if (MLX5_CAP_GEN(mdev, apm))
|
|
props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
|
|
if (MLX5_CAP_GEN(mdev, xrc))
|
|
props->device_cap_flags |= IB_DEVICE_XRC;
|
|
if (MLX5_CAP_GEN(mdev, imaicl)) {
|
|
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW |
|
|
IB_DEVICE_MEM_WINDOW_TYPE_2B;
|
|
props->max_mw = 1 << MLX5_CAP_GEN(mdev, log_max_mkey);
|
|
/* We support 'Gappy' memory registration too */
|
|
props->device_cap_flags |= IB_DEVICE_SG_GAPS_REG;
|
|
}
|
|
props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
|
|
if (MLX5_CAP_GEN(mdev, sho)) {
|
|
props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER;
|
|
/* At this stage no support for signature handover */
|
|
props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 |
|
|
IB_PROT_T10DIF_TYPE_2 |
|
|
IB_PROT_T10DIF_TYPE_3;
|
|
props->sig_guard_cap = IB_GUARD_T10DIF_CRC |
|
|
IB_GUARD_T10DIF_CSUM;
|
|
}
|
|
if (MLX5_CAP_GEN(mdev, block_lb_mc))
|
|
props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) && raw_support) {
|
|
if (MLX5_CAP_ETH(mdev, csum_cap)) {
|
|
/* Legacy bit to support old userspace libraries */
|
|
props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM;
|
|
props->raw_packet_caps |= IB_RAW_PACKET_CAP_IP_CSUM;
|
|
}
|
|
|
|
if (MLX5_CAP_ETH(dev->mdev, vlan_cap))
|
|
props->raw_packet_caps |=
|
|
IB_RAW_PACKET_CAP_CVLAN_STRIPPING;
|
|
|
|
if (field_avail(typeof(resp), tso_caps, uhw->outlen)) {
|
|
max_tso = MLX5_CAP_ETH(mdev, max_lso_cap);
|
|
if (max_tso) {
|
|
resp.tso_caps.max_tso = 1 << max_tso;
|
|
resp.tso_caps.supported_qpts |=
|
|
1 << IB_QPT_RAW_PACKET;
|
|
resp.response_length += sizeof(resp.tso_caps);
|
|
}
|
|
}
|
|
|
|
if (field_avail(typeof(resp), rss_caps, uhw->outlen)) {
|
|
resp.rss_caps.rx_hash_function =
|
|
MLX5_RX_HASH_FUNC_TOEPLITZ;
|
|
resp.rss_caps.rx_hash_fields_mask =
|
|
MLX5_RX_HASH_SRC_IPV4 |
|
|
MLX5_RX_HASH_DST_IPV4 |
|
|
MLX5_RX_HASH_SRC_IPV6 |
|
|
MLX5_RX_HASH_DST_IPV6 |
|
|
MLX5_RX_HASH_SRC_PORT_TCP |
|
|
MLX5_RX_HASH_DST_PORT_TCP |
|
|
MLX5_RX_HASH_SRC_PORT_UDP |
|
|
MLX5_RX_HASH_DST_PORT_UDP |
|
|
MLX5_RX_HASH_INNER;
|
|
if (mlx5_accel_ipsec_device_caps(dev->mdev) &
|
|
MLX5_ACCEL_IPSEC_CAP_DEVICE)
|
|
resp.rss_caps.rx_hash_fields_mask |=
|
|
MLX5_RX_HASH_IPSEC_SPI;
|
|
resp.response_length += sizeof(resp.rss_caps);
|
|
}
|
|
} else {
|
|
if (field_avail(typeof(resp), tso_caps, uhw->outlen))
|
|
resp.response_length += sizeof(resp.tso_caps);
|
|
if (field_avail(typeof(resp), rss_caps, uhw->outlen))
|
|
resp.response_length += sizeof(resp.rss_caps);
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(mdev, ipoib_basic_offloads)) {
|
|
props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
|
|
props->device_cap_flags |= IB_DEVICE_UD_TSO;
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, rq_delay_drop) &&
|
|
MLX5_CAP_GEN(dev->mdev, general_notification_event) &&
|
|
raw_support)
|
|
props->raw_packet_caps |= IB_RAW_PACKET_CAP_DELAY_DROP;
|
|
|
|
if (MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads) &&
|
|
MLX5_CAP_IPOIB_ENHANCED(mdev, csum_cap))
|
|
props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) &&
|
|
MLX5_CAP_ETH(dev->mdev, scatter_fcs) &&
|
|
raw_support) {
|
|
/* Legacy bit to support old userspace libraries */
|
|
props->device_cap_flags |= IB_DEVICE_RAW_SCATTER_FCS;
|
|
props->raw_packet_caps |= IB_RAW_PACKET_CAP_SCATTER_FCS;
|
|
}
|
|
|
|
if (MLX5_CAP_DEV_MEM(mdev, memic)) {
|
|
props->max_dm_size =
|
|
MLX5_CAP_DEV_MEM(mdev, max_memic_size);
|
|
}
|
|
|
|
if (mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_BYPASS))
|
|
props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
|
|
|
|
if (MLX5_CAP_GEN(mdev, end_pad))
|
|
props->device_cap_flags |= IB_DEVICE_PCI_WRITE_END_PADDING;
|
|
|
|
props->vendor_part_id = mdev->pdev->device;
|
|
props->hw_ver = mdev->pdev->revision;
|
|
|
|
props->max_mr_size = ~0ull;
|
|
props->page_size_cap = ~(min_page_size - 1);
|
|
props->max_qp = 1 << MLX5_CAP_GEN(mdev, log_max_qp);
|
|
props->max_qp_wr = 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
|
|
max_rq_sg = MLX5_CAP_GEN(mdev, max_wqe_sz_rq) /
|
|
sizeof(struct mlx5_wqe_data_seg);
|
|
max_sq_desc = min_t(int, MLX5_CAP_GEN(mdev, max_wqe_sz_sq), 512);
|
|
max_sq_sg = (max_sq_desc - sizeof(struct mlx5_wqe_ctrl_seg) -
|
|
sizeof(struct mlx5_wqe_raddr_seg)) /
|
|
sizeof(struct mlx5_wqe_data_seg);
|
|
props->max_send_sge = max_sq_sg;
|
|
props->max_recv_sge = max_rq_sg;
|
|
props->max_sge_rd = MLX5_MAX_SGE_RD;
|
|
props->max_cq = 1 << MLX5_CAP_GEN(mdev, log_max_cq);
|
|
props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_cq_sz)) - 1;
|
|
props->max_mr = 1 << MLX5_CAP_GEN(mdev, log_max_mkey);
|
|
props->max_pd = 1 << MLX5_CAP_GEN(mdev, log_max_pd);
|
|
props->max_qp_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp);
|
|
props->max_qp_init_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_res_qp);
|
|
props->max_srq = 1 << MLX5_CAP_GEN(mdev, log_max_srq);
|
|
props->max_srq_wr = (1 << MLX5_CAP_GEN(mdev, log_max_srq_sz)) - 1;
|
|
props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay);
|
|
props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
|
|
props->max_srq_sge = max_rq_sg - 1;
|
|
props->max_fast_reg_page_list_len =
|
|
1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size);
|
|
get_atomic_caps_qp(dev, props);
|
|
props->masked_atomic_cap = IB_ATOMIC_NONE;
|
|
props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg);
|
|
props->max_mcast_qp_attach = MLX5_CAP_GEN(mdev, max_qp_mcg);
|
|
props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
|
|
props->max_mcast_grp;
|
|
props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */
|
|
props->max_ah = INT_MAX;
|
|
props->hca_core_clock = MLX5_CAP_GEN(mdev, device_frequency_khz);
|
|
props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL;
|
|
|
|
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
|
|
if (MLX5_CAP_GEN(mdev, pg))
|
|
props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
|
|
props->odp_caps = dev->odp_caps;
|
|
#endif
|
|
|
|
if (MLX5_CAP_GEN(mdev, cd))
|
|
props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL;
|
|
|
|
if (!mlx5_core_is_pf(mdev))
|
|
props->device_cap_flags |= IB_DEVICE_VIRTUAL_FUNCTION;
|
|
|
|
if (mlx5_ib_port_link_layer(ibdev, 1) ==
|
|
IB_LINK_LAYER_ETHERNET && raw_support) {
|
|
props->rss_caps.max_rwq_indirection_tables =
|
|
1 << MLX5_CAP_GEN(dev->mdev, log_max_rqt);
|
|
props->rss_caps.max_rwq_indirection_table_size =
|
|
1 << MLX5_CAP_GEN(dev->mdev, log_max_rqt_size);
|
|
props->rss_caps.supported_qpts = 1 << IB_QPT_RAW_PACKET;
|
|
props->max_wq_type_rq =
|
|
1 << MLX5_CAP_GEN(dev->mdev, log_max_rq);
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(mdev, tag_matching)) {
|
|
props->tm_caps.max_num_tags =
|
|
(1 << MLX5_CAP_GEN(mdev, log_tag_matching_list_sz)) - 1;
|
|
props->tm_caps.max_ops =
|
|
1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
|
|
props->tm_caps.max_sge = MLX5_TM_MAX_SGE;
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(mdev, tag_matching) &&
|
|
MLX5_CAP_GEN(mdev, rndv_offload_rc)) {
|
|
props->tm_caps.flags = IB_TM_CAP_RNDV_RC;
|
|
props->tm_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, cq_moderation)) {
|
|
props->cq_caps.max_cq_moderation_count =
|
|
MLX5_MAX_CQ_COUNT;
|
|
props->cq_caps.max_cq_moderation_period =
|
|
MLX5_MAX_CQ_PERIOD;
|
|
}
|
|
|
|
if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) {
|
|
resp.response_length += sizeof(resp.cqe_comp_caps);
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, cqe_compression)) {
|
|
resp.cqe_comp_caps.max_num =
|
|
MLX5_CAP_GEN(dev->mdev,
|
|
cqe_compression_max_num);
|
|
|
|
resp.cqe_comp_caps.supported_format =
|
|
MLX5_IB_CQE_RES_FORMAT_HASH |
|
|
MLX5_IB_CQE_RES_FORMAT_CSUM;
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, mini_cqe_resp_stride_index))
|
|
resp.cqe_comp_caps.supported_format |=
|
|
MLX5_IB_CQE_RES_FORMAT_CSUM_STRIDX;
|
|
}
|
|
}
|
|
|
|
if (field_avail(typeof(resp), packet_pacing_caps, uhw->outlen) &&
|
|
raw_support) {
|
|
if (MLX5_CAP_QOS(mdev, packet_pacing) &&
|
|
MLX5_CAP_GEN(mdev, qos)) {
|
|
resp.packet_pacing_caps.qp_rate_limit_max =
|
|
MLX5_CAP_QOS(mdev, packet_pacing_max_rate);
|
|
resp.packet_pacing_caps.qp_rate_limit_min =
|
|
MLX5_CAP_QOS(mdev, packet_pacing_min_rate);
|
|
resp.packet_pacing_caps.supported_qpts |=
|
|
1 << IB_QPT_RAW_PACKET;
|
|
if (MLX5_CAP_QOS(mdev, packet_pacing_burst_bound) &&
|
|
MLX5_CAP_QOS(mdev, packet_pacing_typical_size))
|
|
resp.packet_pacing_caps.cap_flags |=
|
|
MLX5_IB_PP_SUPPORT_BURST;
|
|
}
|
|
resp.response_length += sizeof(resp.packet_pacing_caps);
|
|
}
|
|
|
|
if (field_avail(typeof(resp), mlx5_ib_support_multi_pkt_send_wqes,
|
|
uhw->outlen)) {
|
|
if (MLX5_CAP_ETH(mdev, multi_pkt_send_wqe))
|
|
resp.mlx5_ib_support_multi_pkt_send_wqes =
|
|
MLX5_IB_ALLOW_MPW;
|
|
|
|
if (MLX5_CAP_ETH(mdev, enhanced_multi_pkt_send_wqe))
|
|
resp.mlx5_ib_support_multi_pkt_send_wqes |=
|
|
MLX5_IB_SUPPORT_EMPW;
|
|
|
|
resp.response_length +=
|
|
sizeof(resp.mlx5_ib_support_multi_pkt_send_wqes);
|
|
}
|
|
|
|
if (field_avail(typeof(resp), flags, uhw->outlen)) {
|
|
resp.response_length += sizeof(resp.flags);
|
|
|
|
if (MLX5_CAP_GEN(mdev, cqe_compression_128))
|
|
resp.flags |=
|
|
MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_COMP;
|
|
|
|
if (MLX5_CAP_GEN(mdev, cqe_128_always))
|
|
resp.flags |= MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_PAD;
|
|
}
|
|
|
|
if (field_avail(typeof(resp), sw_parsing_caps,
|
|
uhw->outlen)) {
|
|
resp.response_length += sizeof(resp.sw_parsing_caps);
|
|
if (MLX5_CAP_ETH(mdev, swp)) {
|
|
resp.sw_parsing_caps.sw_parsing_offloads |=
|
|
MLX5_IB_SW_PARSING;
|
|
|
|
if (MLX5_CAP_ETH(mdev, swp_csum))
|
|
resp.sw_parsing_caps.sw_parsing_offloads |=
|
|
MLX5_IB_SW_PARSING_CSUM;
|
|
|
|
if (MLX5_CAP_ETH(mdev, swp_lso))
|
|
resp.sw_parsing_caps.sw_parsing_offloads |=
|
|
MLX5_IB_SW_PARSING_LSO;
|
|
|
|
if (resp.sw_parsing_caps.sw_parsing_offloads)
|
|
resp.sw_parsing_caps.supported_qpts =
|
|
BIT(IB_QPT_RAW_PACKET);
|
|
}
|
|
}
|
|
|
|
if (field_avail(typeof(resp), striding_rq_caps, uhw->outlen) &&
|
|
raw_support) {
|
|
resp.response_length += sizeof(resp.striding_rq_caps);
|
|
if (MLX5_CAP_GEN(mdev, striding_rq)) {
|
|
resp.striding_rq_caps.min_single_stride_log_num_of_bytes =
|
|
MLX5_MIN_SINGLE_STRIDE_LOG_NUM_BYTES;
|
|
resp.striding_rq_caps.max_single_stride_log_num_of_bytes =
|
|
MLX5_MAX_SINGLE_STRIDE_LOG_NUM_BYTES;
|
|
resp.striding_rq_caps.min_single_wqe_log_num_of_strides =
|
|
MLX5_MIN_SINGLE_WQE_LOG_NUM_STRIDES;
|
|
resp.striding_rq_caps.max_single_wqe_log_num_of_strides =
|
|
MLX5_MAX_SINGLE_WQE_LOG_NUM_STRIDES;
|
|
resp.striding_rq_caps.supported_qpts =
|
|
BIT(IB_QPT_RAW_PACKET);
|
|
}
|
|
}
|
|
|
|
if (field_avail(typeof(resp), tunnel_offloads_caps,
|
|
uhw->outlen)) {
|
|
resp.response_length += sizeof(resp.tunnel_offloads_caps);
|
|
if (MLX5_CAP_ETH(mdev, tunnel_stateless_vxlan))
|
|
resp.tunnel_offloads_caps |=
|
|
MLX5_IB_TUNNELED_OFFLOADS_VXLAN;
|
|
if (MLX5_CAP_ETH(mdev, tunnel_stateless_geneve_rx))
|
|
resp.tunnel_offloads_caps |=
|
|
MLX5_IB_TUNNELED_OFFLOADS_GENEVE;
|
|
if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre))
|
|
resp.tunnel_offloads_caps |=
|
|
MLX5_IB_TUNNELED_OFFLOADS_GRE;
|
|
if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_gre))
|
|
resp.tunnel_offloads_caps |=
|
|
MLX5_IB_TUNNELED_OFFLOADS_MPLS_GRE;
|
|
if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_udp))
|
|
resp.tunnel_offloads_caps |=
|
|
MLX5_IB_TUNNELED_OFFLOADS_MPLS_UDP;
|
|
}
|
|
|
|
if (uhw->outlen) {
|
|
err = ib_copy_to_udata(uhw, &resp, resp.response_length);
|
|
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
enum mlx5_ib_width {
|
|
MLX5_IB_WIDTH_1X = 1 << 0,
|
|
MLX5_IB_WIDTH_2X = 1 << 1,
|
|
MLX5_IB_WIDTH_4X = 1 << 2,
|
|
MLX5_IB_WIDTH_8X = 1 << 3,
|
|
MLX5_IB_WIDTH_12X = 1 << 4
|
|
};
|
|
|
|
static void translate_active_width(struct ib_device *ibdev, u8 active_width,
|
|
u8 *ib_width)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
|
|
if (active_width & MLX5_IB_WIDTH_1X)
|
|
*ib_width = IB_WIDTH_1X;
|
|
else if (active_width & MLX5_IB_WIDTH_4X)
|
|
*ib_width = IB_WIDTH_4X;
|
|
else if (active_width & MLX5_IB_WIDTH_8X)
|
|
*ib_width = IB_WIDTH_8X;
|
|
else if (active_width & MLX5_IB_WIDTH_12X)
|
|
*ib_width = IB_WIDTH_12X;
|
|
else {
|
|
mlx5_ib_dbg(dev, "Invalid active_width %d, setting width to default value: 4x\n",
|
|
(int)active_width);
|
|
*ib_width = IB_WIDTH_4X;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static int mlx5_mtu_to_ib_mtu(int mtu)
|
|
{
|
|
switch (mtu) {
|
|
case 256: return 1;
|
|
case 512: return 2;
|
|
case 1024: return 3;
|
|
case 2048: return 4;
|
|
case 4096: return 5;
|
|
default:
|
|
pr_warn("invalid mtu\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
enum ib_max_vl_num {
|
|
__IB_MAX_VL_0 = 1,
|
|
__IB_MAX_VL_0_1 = 2,
|
|
__IB_MAX_VL_0_3 = 3,
|
|
__IB_MAX_VL_0_7 = 4,
|
|
__IB_MAX_VL_0_14 = 5,
|
|
};
|
|
|
|
enum mlx5_vl_hw_cap {
|
|
MLX5_VL_HW_0 = 1,
|
|
MLX5_VL_HW_0_1 = 2,
|
|
MLX5_VL_HW_0_2 = 3,
|
|
MLX5_VL_HW_0_3 = 4,
|
|
MLX5_VL_HW_0_4 = 5,
|
|
MLX5_VL_HW_0_5 = 6,
|
|
MLX5_VL_HW_0_6 = 7,
|
|
MLX5_VL_HW_0_7 = 8,
|
|
MLX5_VL_HW_0_14 = 15
|
|
};
|
|
|
|
static int translate_max_vl_num(struct ib_device *ibdev, u8 vl_hw_cap,
|
|
u8 *max_vl_num)
|
|
{
|
|
switch (vl_hw_cap) {
|
|
case MLX5_VL_HW_0:
|
|
*max_vl_num = __IB_MAX_VL_0;
|
|
break;
|
|
case MLX5_VL_HW_0_1:
|
|
*max_vl_num = __IB_MAX_VL_0_1;
|
|
break;
|
|
case MLX5_VL_HW_0_3:
|
|
*max_vl_num = __IB_MAX_VL_0_3;
|
|
break;
|
|
case MLX5_VL_HW_0_7:
|
|
*max_vl_num = __IB_MAX_VL_0_7;
|
|
break;
|
|
case MLX5_VL_HW_0_14:
|
|
*max_vl_num = __IB_MAX_VL_0_14;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port,
|
|
struct ib_port_attr *props)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
struct mlx5_hca_vport_context *rep;
|
|
u16 max_mtu;
|
|
u16 oper_mtu;
|
|
int err;
|
|
u8 ib_link_width_oper;
|
|
u8 vl_hw_cap;
|
|
|
|
rep = kzalloc(sizeof(*rep), GFP_KERNEL);
|
|
if (!rep) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
/* props being zeroed by the caller, avoid zeroing it here */
|
|
|
|
err = mlx5_query_hca_vport_context(mdev, 0, port, 0, rep);
|
|
if (err)
|
|
goto out;
|
|
|
|
props->lid = rep->lid;
|
|
props->lmc = rep->lmc;
|
|
props->sm_lid = rep->sm_lid;
|
|
props->sm_sl = rep->sm_sl;
|
|
props->state = rep->vport_state;
|
|
props->phys_state = rep->port_physical_state;
|
|
props->port_cap_flags = rep->cap_mask1;
|
|
props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size));
|
|
props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg);
|
|
props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size));
|
|
props->bad_pkey_cntr = rep->pkey_violation_counter;
|
|
props->qkey_viol_cntr = rep->qkey_violation_counter;
|
|
props->subnet_timeout = rep->subnet_timeout;
|
|
props->init_type_reply = rep->init_type_reply;
|
|
|
|
err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port);
|
|
if (err)
|
|
goto out;
|
|
|
|
translate_active_width(ibdev, ib_link_width_oper, &props->active_width);
|
|
|
|
err = mlx5_query_port_ib_proto_oper(mdev, &props->active_speed, port);
|
|
if (err)
|
|
goto out;
|
|
|
|
mlx5_query_port_max_mtu(mdev, &max_mtu, port);
|
|
|
|
props->max_mtu = mlx5_mtu_to_ib_mtu(max_mtu);
|
|
|
|
mlx5_query_port_oper_mtu(mdev, &oper_mtu, port);
|
|
|
|
props->active_mtu = mlx5_mtu_to_ib_mtu(oper_mtu);
|
|
|
|
err = mlx5_query_port_vl_hw_cap(mdev, &vl_hw_cap, port);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = translate_max_vl_num(ibdev, vl_hw_cap,
|
|
&props->max_vl_num);
|
|
out:
|
|
kfree(rep);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
|
|
struct ib_port_attr *props)
|
|
{
|
|
unsigned int count;
|
|
int ret;
|
|
|
|
switch (mlx5_get_vport_access_method(ibdev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
ret = mlx5_query_mad_ifc_port(ibdev, port, props);
|
|
break;
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
ret = mlx5_query_hca_port(ibdev, port, props);
|
|
break;
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_NIC:
|
|
ret = mlx5_query_port_roce(ibdev, port, props);
|
|
break;
|
|
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
if (!ret && props) {
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev;
|
|
bool put_mdev = true;
|
|
|
|
mdev = mlx5_ib_get_native_port_mdev(dev, port, NULL);
|
|
if (!mdev) {
|
|
/* If the port isn't affiliated yet query the master.
|
|
* The master and slave will have the same values.
|
|
*/
|
|
mdev = dev->mdev;
|
|
port = 1;
|
|
put_mdev = false;
|
|
}
|
|
count = mlx5_core_reserved_gids_count(mdev);
|
|
if (put_mdev)
|
|
mlx5_ib_put_native_port_mdev(dev, port);
|
|
props->gid_tbl_len -= count;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int mlx5_ib_rep_query_port(struct ib_device *ibdev, u8 port,
|
|
struct ib_port_attr *props)
|
|
{
|
|
int ret;
|
|
|
|
/* Only link layer == ethernet is valid for representors */
|
|
ret = mlx5_query_port_roce(ibdev, port, props);
|
|
if (ret || !props)
|
|
return ret;
|
|
|
|
/* We don't support GIDS */
|
|
props->gid_tbl_len = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
|
|
union ib_gid *gid)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
|
|
switch (mlx5_get_vport_access_method(ibdev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
return mlx5_query_mad_ifc_gids(ibdev, port, index, gid);
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
return mlx5_query_hca_vport_gid(mdev, 0, port, 0, index, gid);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
}
|
|
|
|
static int mlx5_query_hca_nic_pkey(struct ib_device *ibdev, u8 port,
|
|
u16 index, u16 *pkey)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev;
|
|
bool put_mdev = true;
|
|
u8 mdev_port_num;
|
|
int err;
|
|
|
|
mdev = mlx5_ib_get_native_port_mdev(dev, port, &mdev_port_num);
|
|
if (!mdev) {
|
|
/* The port isn't affiliated yet, get the PKey from the master
|
|
* port. For RoCE the PKey tables will be the same.
|
|
*/
|
|
put_mdev = false;
|
|
mdev = dev->mdev;
|
|
mdev_port_num = 1;
|
|
}
|
|
|
|
err = mlx5_query_hca_vport_pkey(mdev, 0, mdev_port_num, 0,
|
|
index, pkey);
|
|
if (put_mdev)
|
|
mlx5_ib_put_native_port_mdev(dev, port);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
|
|
u16 *pkey)
|
|
{
|
|
switch (mlx5_get_vport_access_method(ibdev)) {
|
|
case MLX5_VPORT_ACCESS_METHOD_MAD:
|
|
return mlx5_query_mad_ifc_pkey(ibdev, port, index, pkey);
|
|
|
|
case MLX5_VPORT_ACCESS_METHOD_HCA:
|
|
case MLX5_VPORT_ACCESS_METHOD_NIC:
|
|
return mlx5_query_hca_nic_pkey(ibdev, port, index, pkey);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask,
|
|
struct ib_device_modify *props)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_reg_node_desc in;
|
|
struct mlx5_reg_node_desc out;
|
|
int err;
|
|
|
|
if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
|
|
return 0;
|
|
|
|
/*
|
|
* If possible, pass node desc to FW, so it can generate
|
|
* a 144 trap. If cmd fails, just ignore.
|
|
*/
|
|
memcpy(&in, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
|
|
err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out,
|
|
sizeof(out), MLX5_REG_NODE_DESC, 0, 1);
|
|
if (err)
|
|
return err;
|
|
|
|
memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int set_port_caps_atomic(struct mlx5_ib_dev *dev, u8 port_num, u32 mask,
|
|
u32 value)
|
|
{
|
|
struct mlx5_hca_vport_context ctx = {};
|
|
struct mlx5_core_dev *mdev;
|
|
u8 mdev_port_num;
|
|
int err;
|
|
|
|
mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num);
|
|
if (!mdev)
|
|
return -ENODEV;
|
|
|
|
err = mlx5_query_hca_vport_context(mdev, 0, mdev_port_num, 0, &ctx);
|
|
if (err)
|
|
goto out;
|
|
|
|
if (~ctx.cap_mask1_perm & mask) {
|
|
mlx5_ib_warn(dev, "trying to change bitmask 0x%X but change supported 0x%X\n",
|
|
mask, ctx.cap_mask1_perm);
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ctx.cap_mask1 = value;
|
|
ctx.cap_mask1_perm = mask;
|
|
err = mlx5_core_modify_hca_vport_context(mdev, 0, mdev_port_num,
|
|
0, &ctx);
|
|
|
|
out:
|
|
mlx5_ib_put_native_port_mdev(dev, port_num);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
|
|
struct ib_port_modify *props)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct ib_port_attr attr;
|
|
u32 tmp;
|
|
int err;
|
|
u32 change_mask;
|
|
u32 value;
|
|
bool is_ib = (mlx5_ib_port_link_layer(ibdev, port) ==
|
|
IB_LINK_LAYER_INFINIBAND);
|
|
|
|
/* CM layer calls ib_modify_port() regardless of the link layer. For
|
|
* Ethernet ports, qkey violation and Port capabilities are meaningless.
|
|
*/
|
|
if (!is_ib)
|
|
return 0;
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, ib_virt) && is_ib) {
|
|
change_mask = props->clr_port_cap_mask | props->set_port_cap_mask;
|
|
value = ~props->clr_port_cap_mask | props->set_port_cap_mask;
|
|
return set_port_caps_atomic(dev, port, change_mask, value);
|
|
}
|
|
|
|
mutex_lock(&dev->cap_mask_mutex);
|
|
|
|
err = ib_query_port(ibdev, port, &attr);
|
|
if (err)
|
|
goto out;
|
|
|
|
tmp = (attr.port_cap_flags | props->set_port_cap_mask) &
|
|
~props->clr_port_cap_mask;
|
|
|
|
err = mlx5_set_port_caps(dev->mdev, port, tmp);
|
|
|
|
out:
|
|
mutex_unlock(&dev->cap_mask_mutex);
|
|
return err;
|
|
}
|
|
|
|
static void print_lib_caps(struct mlx5_ib_dev *dev, u64 caps)
|
|
{
|
|
mlx5_ib_dbg(dev, "MLX5_LIB_CAP_4K_UAR = %s\n",
|
|
caps & MLX5_LIB_CAP_4K_UAR ? "y" : "n");
|
|
}
|
|
|
|
static u16 calc_dynamic_bfregs(int uars_per_sys_page)
|
|
{
|
|
/* Large page with non 4k uar support might limit the dynamic size */
|
|
if (uars_per_sys_page == 1 && PAGE_SIZE > 4096)
|
|
return MLX5_MIN_DYN_BFREGS;
|
|
|
|
return MLX5_MAX_DYN_BFREGS;
|
|
}
|
|
|
|
static int calc_total_bfregs(struct mlx5_ib_dev *dev, bool lib_uar_4k,
|
|
struct mlx5_ib_alloc_ucontext_req_v2 *req,
|
|
struct mlx5_bfreg_info *bfregi)
|
|
{
|
|
int uars_per_sys_page;
|
|
int bfregs_per_sys_page;
|
|
int ref_bfregs = req->total_num_bfregs;
|
|
|
|
if (req->total_num_bfregs == 0)
|
|
return -EINVAL;
|
|
|
|
BUILD_BUG_ON(MLX5_MAX_BFREGS % MLX5_NON_FP_BFREGS_IN_PAGE);
|
|
BUILD_BUG_ON(MLX5_MAX_BFREGS < MLX5_NON_FP_BFREGS_IN_PAGE);
|
|
|
|
if (req->total_num_bfregs > MLX5_MAX_BFREGS)
|
|
return -ENOMEM;
|
|
|
|
uars_per_sys_page = get_uars_per_sys_page(dev, lib_uar_4k);
|
|
bfregs_per_sys_page = uars_per_sys_page * MLX5_NON_FP_BFREGS_PER_UAR;
|
|
/* This holds the required static allocation asked by the user */
|
|
req->total_num_bfregs = ALIGN(req->total_num_bfregs, bfregs_per_sys_page);
|
|
if (req->num_low_latency_bfregs > req->total_num_bfregs - 1)
|
|
return -EINVAL;
|
|
|
|
bfregi->num_static_sys_pages = req->total_num_bfregs / bfregs_per_sys_page;
|
|
bfregi->num_dyn_bfregs = ALIGN(calc_dynamic_bfregs(uars_per_sys_page), bfregs_per_sys_page);
|
|
bfregi->total_num_bfregs = req->total_num_bfregs + bfregi->num_dyn_bfregs;
|
|
bfregi->num_sys_pages = bfregi->total_num_bfregs / bfregs_per_sys_page;
|
|
|
|
mlx5_ib_dbg(dev, "uar_4k: fw support %s, lib support %s, user requested %d bfregs, allocated %d, total bfregs %d, using %d sys pages\n",
|
|
MLX5_CAP_GEN(dev->mdev, uar_4k) ? "yes" : "no",
|
|
lib_uar_4k ? "yes" : "no", ref_bfregs,
|
|
req->total_num_bfregs, bfregi->total_num_bfregs,
|
|
bfregi->num_sys_pages);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int allocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context)
|
|
{
|
|
struct mlx5_bfreg_info *bfregi;
|
|
int err;
|
|
int i;
|
|
|
|
bfregi = &context->bfregi;
|
|
for (i = 0; i < bfregi->num_static_sys_pages; i++) {
|
|
err = mlx5_cmd_alloc_uar(dev->mdev, &bfregi->sys_pages[i]);
|
|
if (err)
|
|
goto error;
|
|
|
|
mlx5_ib_dbg(dev, "allocated uar %d\n", bfregi->sys_pages[i]);
|
|
}
|
|
|
|
for (i = bfregi->num_static_sys_pages; i < bfregi->num_sys_pages; i++)
|
|
bfregi->sys_pages[i] = MLX5_IB_INVALID_UAR_INDEX;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
for (--i; i >= 0; i--)
|
|
if (mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i]))
|
|
mlx5_ib_warn(dev, "failed to free uar %d\n", i);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void deallocate_uars(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_ucontext *context)
|
|
{
|
|
struct mlx5_bfreg_info *bfregi;
|
|
int i;
|
|
|
|
bfregi = &context->bfregi;
|
|
for (i = 0; i < bfregi->num_sys_pages; i++)
|
|
if (i < bfregi->num_static_sys_pages ||
|
|
bfregi->sys_pages[i] != MLX5_IB_INVALID_UAR_INDEX)
|
|
mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i]);
|
|
}
|
|
|
|
static int mlx5_ib_alloc_transport_domain(struct mlx5_ib_dev *dev, u32 *tdn)
|
|
{
|
|
int err;
|
|
|
|
if (!MLX5_CAP_GEN(dev->mdev, log_max_transport_domain))
|
|
return 0;
|
|
|
|
err = mlx5_core_alloc_transport_domain(dev->mdev, tdn);
|
|
if (err)
|
|
return err;
|
|
|
|
if ((MLX5_CAP_GEN(dev->mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) ||
|
|
(!MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) &&
|
|
!MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc)))
|
|
return err;
|
|
|
|
mutex_lock(&dev->lb_mutex);
|
|
dev->user_td++;
|
|
|
|
if (dev->user_td == 2)
|
|
err = mlx5_nic_vport_update_local_lb(dev->mdev, true);
|
|
|
|
mutex_unlock(&dev->lb_mutex);
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_ib_dealloc_transport_domain(struct mlx5_ib_dev *dev, u32 tdn)
|
|
{
|
|
if (!MLX5_CAP_GEN(dev->mdev, log_max_transport_domain))
|
|
return;
|
|
|
|
mlx5_core_dealloc_transport_domain(dev->mdev, tdn);
|
|
|
|
if ((MLX5_CAP_GEN(dev->mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) ||
|
|
(!MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) &&
|
|
!MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc)))
|
|
return;
|
|
|
|
mutex_lock(&dev->lb_mutex);
|
|
dev->user_td--;
|
|
|
|
if (dev->user_td < 2)
|
|
mlx5_nic_vport_update_local_lb(dev->mdev, false);
|
|
|
|
mutex_unlock(&dev->lb_mutex);
|
|
}
|
|
|
|
static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_ib_alloc_ucontext_req_v2 req = {};
|
|
struct mlx5_ib_alloc_ucontext_resp resp = {};
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
struct mlx5_ib_ucontext *context;
|
|
struct mlx5_bfreg_info *bfregi;
|
|
int ver;
|
|
int err;
|
|
size_t min_req_v2 = offsetof(struct mlx5_ib_alloc_ucontext_req_v2,
|
|
max_cqe_version);
|
|
u32 dump_fill_mkey;
|
|
bool lib_uar_4k;
|
|
|
|
if (!dev->ib_active)
|
|
return ERR_PTR(-EAGAIN);
|
|
|
|
if (udata->inlen == sizeof(struct mlx5_ib_alloc_ucontext_req))
|
|
ver = 0;
|
|
else if (udata->inlen >= min_req_v2)
|
|
ver = 2;
|
|
else
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
err = ib_copy_from_udata(&req, udata, min(udata->inlen, sizeof(req)));
|
|
if (err)
|
|
return ERR_PTR(err);
|
|
|
|
if (req.flags & ~MLX5_IB_ALLOC_UCTX_DEVX)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
if (req.comp_mask || req.reserved0 || req.reserved1 || req.reserved2)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
req.total_num_bfregs = ALIGN(req.total_num_bfregs,
|
|
MLX5_NON_FP_BFREGS_PER_UAR);
|
|
if (req.num_low_latency_bfregs > req.total_num_bfregs - 1)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
resp.qp_tab_size = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp);
|
|
if (mlx5_core_is_pf(dev->mdev) && MLX5_CAP_GEN(dev->mdev, bf))
|
|
resp.bf_reg_size = 1 << MLX5_CAP_GEN(dev->mdev, log_bf_reg_size);
|
|
resp.cache_line_size = cache_line_size();
|
|
resp.max_sq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq);
|
|
resp.max_rq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq);
|
|
resp.max_send_wqebb = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz);
|
|
resp.max_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz);
|
|
resp.max_srq_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz);
|
|
resp.cqe_version = min_t(__u8,
|
|
(__u8)MLX5_CAP_GEN(dev->mdev, cqe_version),
|
|
req.max_cqe_version);
|
|
resp.log_uar_size = MLX5_CAP_GEN(dev->mdev, uar_4k) ?
|
|
MLX5_ADAPTER_PAGE_SHIFT : PAGE_SHIFT;
|
|
resp.num_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ?
|
|
MLX5_CAP_GEN(dev->mdev, num_of_uars_per_page) : 1;
|
|
resp.response_length = min(offsetof(typeof(resp), response_length) +
|
|
sizeof(resp.response_length), udata->outlen);
|
|
|
|
if (mlx5_accel_ipsec_device_caps(dev->mdev) & MLX5_ACCEL_IPSEC_CAP_DEVICE) {
|
|
if (mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_EGRESS))
|
|
resp.flow_action_flags |= MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM;
|
|
if (mlx5_accel_ipsec_device_caps(dev->mdev) & MLX5_ACCEL_IPSEC_CAP_REQUIRED_METADATA)
|
|
resp.flow_action_flags |= MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_REQ_METADATA;
|
|
if (MLX5_CAP_FLOWTABLE(dev->mdev, flow_table_properties_nic_receive.ft_field_support.outer_esp_spi))
|
|
resp.flow_action_flags |= MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_SPI_STEERING;
|
|
if (mlx5_accel_ipsec_device_caps(dev->mdev) & MLX5_ACCEL_IPSEC_CAP_TX_IV_IS_ESN)
|
|
resp.flow_action_flags |= MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_TX_IV_IS_ESN;
|
|
/* MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_FULL_OFFLOAD is currently always 0 */
|
|
}
|
|
|
|
context = kzalloc(sizeof(*context), GFP_KERNEL);
|
|
if (!context)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
lib_uar_4k = req.lib_caps & MLX5_LIB_CAP_4K_UAR;
|
|
bfregi = &context->bfregi;
|
|
|
|
/* updates req->total_num_bfregs */
|
|
err = calc_total_bfregs(dev, lib_uar_4k, &req, bfregi);
|
|
if (err)
|
|
goto out_ctx;
|
|
|
|
mutex_init(&bfregi->lock);
|
|
bfregi->lib_uar_4k = lib_uar_4k;
|
|
bfregi->count = kcalloc(bfregi->total_num_bfregs, sizeof(*bfregi->count),
|
|
GFP_KERNEL);
|
|
if (!bfregi->count) {
|
|
err = -ENOMEM;
|
|
goto out_ctx;
|
|
}
|
|
|
|
bfregi->sys_pages = kcalloc(bfregi->num_sys_pages,
|
|
sizeof(*bfregi->sys_pages),
|
|
GFP_KERNEL);
|
|
if (!bfregi->sys_pages) {
|
|
err = -ENOMEM;
|
|
goto out_count;
|
|
}
|
|
|
|
err = allocate_uars(dev, context);
|
|
if (err)
|
|
goto out_sys_pages;
|
|
|
|
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
|
|
context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range;
|
|
#endif
|
|
|
|
err = mlx5_ib_alloc_transport_domain(dev, &context->tdn);
|
|
if (err)
|
|
goto out_uars;
|
|
|
|
if (req.flags & MLX5_IB_ALLOC_UCTX_DEVX) {
|
|
/* Block DEVX on Infiniband as of SELinux */
|
|
if (mlx5_ib_port_link_layer(ibdev, 1) != IB_LINK_LAYER_ETHERNET) {
|
|
err = -EPERM;
|
|
goto out_td;
|
|
}
|
|
|
|
err = mlx5_ib_devx_create(dev, context);
|
|
if (err)
|
|
goto out_td;
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, dump_fill_mkey)) {
|
|
err = mlx5_cmd_dump_fill_mkey(dev->mdev, &dump_fill_mkey);
|
|
if (err)
|
|
goto out_mdev;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&context->vma_private_list);
|
|
mutex_init(&context->vma_private_list_mutex);
|
|
INIT_LIST_HEAD(&context->db_page_list);
|
|
mutex_init(&context->db_page_mutex);
|
|
|
|
resp.tot_bfregs = req.total_num_bfregs;
|
|
resp.num_ports = dev->num_ports;
|
|
|
|
if (field_avail(typeof(resp), cqe_version, udata->outlen))
|
|
resp.response_length += sizeof(resp.cqe_version);
|
|
|
|
if (field_avail(typeof(resp), cmds_supp_uhw, udata->outlen)) {
|
|
resp.cmds_supp_uhw |= MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE |
|
|
MLX5_USER_CMDS_SUPP_UHW_CREATE_AH;
|
|
resp.response_length += sizeof(resp.cmds_supp_uhw);
|
|
}
|
|
|
|
if (field_avail(typeof(resp), eth_min_inline, udata->outlen)) {
|
|
if (mlx5_ib_port_link_layer(ibdev, 1) == IB_LINK_LAYER_ETHERNET) {
|
|
mlx5_query_min_inline(dev->mdev, &resp.eth_min_inline);
|
|
resp.eth_min_inline++;
|
|
}
|
|
resp.response_length += sizeof(resp.eth_min_inline);
|
|
}
|
|
|
|
if (field_avail(typeof(resp), clock_info_versions, udata->outlen)) {
|
|
if (mdev->clock_info)
|
|
resp.clock_info_versions = BIT(MLX5_IB_CLOCK_INFO_V1);
|
|
resp.response_length += sizeof(resp.clock_info_versions);
|
|
}
|
|
|
|
/*
|
|
* We don't want to expose information from the PCI bar that is located
|
|
* after 4096 bytes, so if the arch only supports larger pages, let's
|
|
* pretend we don't support reading the HCA's core clock. This is also
|
|
* forced by mmap function.
|
|
*/
|
|
if (field_avail(typeof(resp), hca_core_clock_offset, udata->outlen)) {
|
|
if (PAGE_SIZE <= 4096) {
|
|
resp.comp_mask |=
|
|
MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET;
|
|
resp.hca_core_clock_offset =
|
|
offsetof(struct mlx5_init_seg, internal_timer_h) % PAGE_SIZE;
|
|
}
|
|
resp.response_length += sizeof(resp.hca_core_clock_offset);
|
|
}
|
|
|
|
if (field_avail(typeof(resp), log_uar_size, udata->outlen))
|
|
resp.response_length += sizeof(resp.log_uar_size);
|
|
|
|
if (field_avail(typeof(resp), num_uars_per_page, udata->outlen))
|
|
resp.response_length += sizeof(resp.num_uars_per_page);
|
|
|
|
if (field_avail(typeof(resp), num_dyn_bfregs, udata->outlen)) {
|
|
resp.num_dyn_bfregs = bfregi->num_dyn_bfregs;
|
|
resp.response_length += sizeof(resp.num_dyn_bfregs);
|
|
}
|
|
|
|
if (field_avail(typeof(resp), dump_fill_mkey, udata->outlen)) {
|
|
if (MLX5_CAP_GEN(dev->mdev, dump_fill_mkey)) {
|
|
resp.dump_fill_mkey = dump_fill_mkey;
|
|
resp.comp_mask |=
|
|
MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_DUMP_FILL_MKEY;
|
|
}
|
|
resp.response_length += sizeof(resp.dump_fill_mkey);
|
|
}
|
|
|
|
err = ib_copy_to_udata(udata, &resp, resp.response_length);
|
|
if (err)
|
|
goto out_mdev;
|
|
|
|
bfregi->ver = ver;
|
|
bfregi->num_low_latency_bfregs = req.num_low_latency_bfregs;
|
|
context->cqe_version = resp.cqe_version;
|
|
context->lib_caps = req.lib_caps;
|
|
print_lib_caps(dev, context->lib_caps);
|
|
|
|
if (mlx5_lag_is_active(dev->mdev)) {
|
|
u8 port = mlx5_core_native_port_num(dev->mdev);
|
|
|
|
atomic_set(&context->tx_port_affinity,
|
|
atomic_add_return(
|
|
1, &dev->roce[port].tx_port_affinity));
|
|
}
|
|
|
|
return &context->ibucontext;
|
|
|
|
out_mdev:
|
|
if (req.flags & MLX5_IB_ALLOC_UCTX_DEVX)
|
|
mlx5_ib_devx_destroy(dev, context);
|
|
out_td:
|
|
mlx5_ib_dealloc_transport_domain(dev, context->tdn);
|
|
|
|
out_uars:
|
|
deallocate_uars(dev, context);
|
|
|
|
out_sys_pages:
|
|
kfree(bfregi->sys_pages);
|
|
|
|
out_count:
|
|
kfree(bfregi->count);
|
|
|
|
out_ctx:
|
|
kfree(context);
|
|
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
|
|
{
|
|
struct mlx5_ib_ucontext *context = to_mucontext(ibcontext);
|
|
struct mlx5_ib_dev *dev = to_mdev(ibcontext->device);
|
|
struct mlx5_bfreg_info *bfregi;
|
|
|
|
if (context->devx_uid)
|
|
mlx5_ib_devx_destroy(dev, context);
|
|
|
|
bfregi = &context->bfregi;
|
|
mlx5_ib_dealloc_transport_domain(dev, context->tdn);
|
|
|
|
deallocate_uars(dev, context);
|
|
kfree(bfregi->sys_pages);
|
|
kfree(bfregi->count);
|
|
kfree(context);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev,
|
|
int uar_idx)
|
|
{
|
|
int fw_uars_per_page;
|
|
|
|
fw_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ? MLX5_UARS_IN_PAGE : 1;
|
|
|
|
return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + uar_idx / fw_uars_per_page;
|
|
}
|
|
|
|
static int get_command(unsigned long offset)
|
|
{
|
|
return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK;
|
|
}
|
|
|
|
static int get_arg(unsigned long offset)
|
|
{
|
|
return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1);
|
|
}
|
|
|
|
static int get_index(unsigned long offset)
|
|
{
|
|
return get_arg(offset);
|
|
}
|
|
|
|
/* Index resides in an extra byte to enable larger values than 255 */
|
|
static int get_extended_index(unsigned long offset)
|
|
{
|
|
return get_arg(offset) | ((offset >> 16) & 0xff) << 8;
|
|
}
|
|
|
|
static void mlx5_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, and therefore all
|
|
* "splitting" operation will not happen to it.
|
|
*/
|
|
area->vm_ops = NULL;
|
|
}
|
|
|
|
static void mlx5_ib_vma_close(struct vm_area_struct *area)
|
|
{
|
|
struct mlx5_ib_vma_private_data *mlx5_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. mlx5 ib_dealloc_ucontext)
|
|
* However need a sync with accessing the vma as part of
|
|
* mlx5_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
|
|
* mlx5_ib_disassociate_ucontext.
|
|
*/
|
|
mlx5_ib_vma_priv_data = (struct mlx5_ib_vma_private_data *)area->vm_private_data;
|
|
|
|
/* setting the vma context pointer to null in the mlx5_ib driver's
|
|
* private data, to protect a race condition in
|
|
* mlx5_ib_disassociate_ucontext().
|
|
*/
|
|
mlx5_ib_vma_priv_data->vma = NULL;
|
|
mutex_lock(mlx5_ib_vma_priv_data->vma_private_list_mutex);
|
|
list_del(&mlx5_ib_vma_priv_data->list);
|
|
mutex_unlock(mlx5_ib_vma_priv_data->vma_private_list_mutex);
|
|
kfree(mlx5_ib_vma_priv_data);
|
|
}
|
|
|
|
static const struct vm_operations_struct mlx5_ib_vm_ops = {
|
|
.open = mlx5_ib_vma_open,
|
|
.close = mlx5_ib_vma_close
|
|
};
|
|
|
|
static int mlx5_ib_set_vma_data(struct vm_area_struct *vma,
|
|
struct mlx5_ib_ucontext *ctx)
|
|
{
|
|
struct mlx5_ib_vma_private_data *vma_prv;
|
|
struct list_head *vma_head = &ctx->vma_private_list;
|
|
|
|
vma_prv = kzalloc(sizeof(*vma_prv), GFP_KERNEL);
|
|
if (!vma_prv)
|
|
return -ENOMEM;
|
|
|
|
vma_prv->vma = vma;
|
|
vma_prv->vma_private_list_mutex = &ctx->vma_private_list_mutex;
|
|
vma->vm_private_data = vma_prv;
|
|
vma->vm_ops = &mlx5_ib_vm_ops;
|
|
|
|
mutex_lock(&ctx->vma_private_list_mutex);
|
|
list_add(&vma_prv->list, vma_head);
|
|
mutex_unlock(&ctx->vma_private_list_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx5_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
|
|
{
|
|
struct vm_area_struct *vma;
|
|
struct mlx5_ib_vma_private_data *vma_private, *n;
|
|
struct mlx5_ib_ucontext *context = to_mucontext(ibcontext);
|
|
|
|
mutex_lock(&context->vma_private_list_mutex);
|
|
list_for_each_entry_safe(vma_private, n, &context->vma_private_list,
|
|
list) {
|
|
vma = vma_private->vma;
|
|
zap_vma_ptes(vma, vma->vm_start, PAGE_SIZE);
|
|
/* context going to be destroyed, should
|
|
* not access ops any more.
|
|
*/
|
|
vma->vm_flags &= ~(VM_SHARED | VM_MAYSHARE);
|
|
vma->vm_ops = NULL;
|
|
list_del(&vma_private->list);
|
|
kfree(vma_private);
|
|
}
|
|
mutex_unlock(&context->vma_private_list_mutex);
|
|
}
|
|
|
|
static inline char *mmap_cmd2str(enum mlx5_ib_mmap_cmd cmd)
|
|
{
|
|
switch (cmd) {
|
|
case MLX5_IB_MMAP_WC_PAGE:
|
|
return "WC";
|
|
case MLX5_IB_MMAP_REGULAR_PAGE:
|
|
return "best effort WC";
|
|
case MLX5_IB_MMAP_NC_PAGE:
|
|
return "NC";
|
|
case MLX5_IB_MMAP_DEVICE_MEM:
|
|
return "Device Memory";
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int mlx5_ib_mmap_clock_info_page(struct mlx5_ib_dev *dev,
|
|
struct vm_area_struct *vma,
|
|
struct mlx5_ib_ucontext *context)
|
|
{
|
|
phys_addr_t pfn;
|
|
int err;
|
|
|
|
if (vma->vm_end - vma->vm_start != PAGE_SIZE)
|
|
return -EINVAL;
|
|
|
|
if (get_index(vma->vm_pgoff) != MLX5_IB_CLOCK_INFO_V1)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (vma->vm_flags & VM_WRITE)
|
|
return -EPERM;
|
|
vma->vm_flags &= ~VM_MAYWRITE;
|
|
|
|
if (!dev->mdev->clock_info_page)
|
|
return -EOPNOTSUPP;
|
|
|
|
pfn = page_to_pfn(dev->mdev->clock_info_page);
|
|
err = remap_pfn_range(vma, vma->vm_start, pfn, PAGE_SIZE,
|
|
vma->vm_page_prot);
|
|
if (err)
|
|
return err;
|
|
|
|
return mlx5_ib_set_vma_data(vma, context);
|
|
}
|
|
|
|
static int uar_mmap(struct mlx5_ib_dev *dev, enum mlx5_ib_mmap_cmd cmd,
|
|
struct vm_area_struct *vma,
|
|
struct mlx5_ib_ucontext *context)
|
|
{
|
|
struct mlx5_bfreg_info *bfregi = &context->bfregi;
|
|
int err;
|
|
unsigned long idx;
|
|
phys_addr_t pfn;
|
|
pgprot_t prot;
|
|
u32 bfreg_dyn_idx = 0;
|
|
u32 uar_index;
|
|
int dyn_uar = (cmd == MLX5_IB_MMAP_ALLOC_WC);
|
|
int max_valid_idx = dyn_uar ? bfregi->num_sys_pages :
|
|
bfregi->num_static_sys_pages;
|
|
|
|
if (vma->vm_end - vma->vm_start != PAGE_SIZE)
|
|
return -EINVAL;
|
|
|
|
if (dyn_uar)
|
|
idx = get_extended_index(vma->vm_pgoff) + bfregi->num_static_sys_pages;
|
|
else
|
|
idx = get_index(vma->vm_pgoff);
|
|
|
|
if (idx >= max_valid_idx) {
|
|
mlx5_ib_warn(dev, "invalid uar index %lu, max=%d\n",
|
|
idx, max_valid_idx);
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (cmd) {
|
|
case MLX5_IB_MMAP_WC_PAGE:
|
|
case MLX5_IB_MMAP_ALLOC_WC:
|
|
/* Some architectures don't support WC memory */
|
|
#if defined(CONFIG_X86)
|
|
if (!pat_enabled())
|
|
return -EPERM;
|
|
#elif !(defined(CONFIG_PPC) || (defined(CONFIG_ARM) && defined(CONFIG_MMU)))
|
|
return -EPERM;
|
|
#endif
|
|
/* fall through */
|
|
case MLX5_IB_MMAP_REGULAR_PAGE:
|
|
/* For MLX5_IB_MMAP_REGULAR_PAGE do the best effort to get WC */
|
|
prot = pgprot_writecombine(vma->vm_page_prot);
|
|
break;
|
|
case MLX5_IB_MMAP_NC_PAGE:
|
|
prot = pgprot_noncached(vma->vm_page_prot);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (dyn_uar) {
|
|
int uars_per_page;
|
|
|
|
uars_per_page = get_uars_per_sys_page(dev, bfregi->lib_uar_4k);
|
|
bfreg_dyn_idx = idx * (uars_per_page * MLX5_NON_FP_BFREGS_PER_UAR);
|
|
if (bfreg_dyn_idx >= bfregi->total_num_bfregs) {
|
|
mlx5_ib_warn(dev, "invalid bfreg_dyn_idx %u, max=%u\n",
|
|
bfreg_dyn_idx, bfregi->total_num_bfregs);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&bfregi->lock);
|
|
/* Fail if uar already allocated, first bfreg index of each
|
|
* page holds its count.
|
|
*/
|
|
if (bfregi->count[bfreg_dyn_idx]) {
|
|
mlx5_ib_warn(dev, "wrong offset, idx %lu is busy, bfregn=%u\n", idx, bfreg_dyn_idx);
|
|
mutex_unlock(&bfregi->lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
bfregi->count[bfreg_dyn_idx]++;
|
|
mutex_unlock(&bfregi->lock);
|
|
|
|
err = mlx5_cmd_alloc_uar(dev->mdev, &uar_index);
|
|
if (err) {
|
|
mlx5_ib_warn(dev, "UAR alloc failed\n");
|
|
goto free_bfreg;
|
|
}
|
|
} else {
|
|
uar_index = bfregi->sys_pages[idx];
|
|
}
|
|
|
|
pfn = uar_index2pfn(dev, uar_index);
|
|
mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn %pa\n", idx, &pfn);
|
|
|
|
vma->vm_page_prot = prot;
|
|
err = io_remap_pfn_range(vma, vma->vm_start, pfn,
|
|
PAGE_SIZE, vma->vm_page_prot);
|
|
if (err) {
|
|
mlx5_ib_err(dev,
|
|
"io_remap_pfn_range failed with error=%d, mmap_cmd=%s\n",
|
|
err, mmap_cmd2str(cmd));
|
|
err = -EAGAIN;
|
|
goto err;
|
|
}
|
|
|
|
err = mlx5_ib_set_vma_data(vma, context);
|
|
if (err)
|
|
goto err;
|
|
|
|
if (dyn_uar)
|
|
bfregi->sys_pages[idx] = uar_index;
|
|
return 0;
|
|
|
|
err:
|
|
if (!dyn_uar)
|
|
return err;
|
|
|
|
mlx5_cmd_free_uar(dev->mdev, idx);
|
|
|
|
free_bfreg:
|
|
mlx5_ib_free_bfreg(dev, bfregi, bfreg_dyn_idx);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int dm_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
|
|
{
|
|
struct mlx5_ib_ucontext *mctx = to_mucontext(context);
|
|
struct mlx5_ib_dev *dev = to_mdev(context->device);
|
|
u16 page_idx = get_extended_index(vma->vm_pgoff);
|
|
size_t map_size = vma->vm_end - vma->vm_start;
|
|
u32 npages = map_size >> PAGE_SHIFT;
|
|
phys_addr_t pfn;
|
|
pgprot_t prot;
|
|
|
|
if (find_next_zero_bit(mctx->dm_pages, page_idx + npages, page_idx) !=
|
|
page_idx + npages)
|
|
return -EINVAL;
|
|
|
|
pfn = ((pci_resource_start(dev->mdev->pdev, 0) +
|
|
MLX5_CAP64_DEV_MEM(dev->mdev, memic_bar_start_addr)) >>
|
|
PAGE_SHIFT) +
|
|
page_idx;
|
|
prot = pgprot_writecombine(vma->vm_page_prot);
|
|
vma->vm_page_prot = prot;
|
|
|
|
if (io_remap_pfn_range(vma, vma->vm_start, pfn, map_size,
|
|
vma->vm_page_prot))
|
|
return -EAGAIN;
|
|
|
|
return mlx5_ib_set_vma_data(vma, mctx);
|
|
}
|
|
|
|
static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
|
|
{
|
|
struct mlx5_ib_ucontext *context = to_mucontext(ibcontext);
|
|
struct mlx5_ib_dev *dev = to_mdev(ibcontext->device);
|
|
unsigned long command;
|
|
phys_addr_t pfn;
|
|
|
|
command = get_command(vma->vm_pgoff);
|
|
switch (command) {
|
|
case MLX5_IB_MMAP_WC_PAGE:
|
|
case MLX5_IB_MMAP_NC_PAGE:
|
|
case MLX5_IB_MMAP_REGULAR_PAGE:
|
|
case MLX5_IB_MMAP_ALLOC_WC:
|
|
return uar_mmap(dev, command, vma, context);
|
|
|
|
case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES:
|
|
return -ENOSYS;
|
|
|
|
case MLX5_IB_MMAP_CORE_CLOCK:
|
|
if (vma->vm_end - vma->vm_start != PAGE_SIZE)
|
|
return -EINVAL;
|
|
|
|
if (vma->vm_flags & VM_WRITE)
|
|
return -EPERM;
|
|
vma->vm_flags &= ~VM_MAYWRITE;
|
|
|
|
/* Don't expose to user-space information it shouldn't have */
|
|
if (PAGE_SIZE > 4096)
|
|
return -EOPNOTSUPP;
|
|
|
|
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
|
|
pfn = (dev->mdev->iseg_base +
|
|
offsetof(struct mlx5_init_seg, internal_timer_h)) >>
|
|
PAGE_SHIFT;
|
|
if (io_remap_pfn_range(vma, vma->vm_start, pfn,
|
|
PAGE_SIZE, vma->vm_page_prot))
|
|
return -EAGAIN;
|
|
break;
|
|
case MLX5_IB_MMAP_CLOCK_INFO:
|
|
return mlx5_ib_mmap_clock_info_page(dev, vma, context);
|
|
|
|
case MLX5_IB_MMAP_DEVICE_MEM:
|
|
return dm_mmap(ibcontext, vma);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
|
|
struct ib_ucontext *context,
|
|
struct ib_dm_alloc_attr *attr,
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
u64 act_size = roundup(attr->length, MLX5_MEMIC_BASE_SIZE);
|
|
struct mlx5_memic *memic = &to_mdev(ibdev)->memic;
|
|
phys_addr_t memic_addr;
|
|
struct mlx5_ib_dm *dm;
|
|
u64 start_offset;
|
|
u32 page_idx;
|
|
int err;
|
|
|
|
dm = kzalloc(sizeof(*dm), GFP_KERNEL);
|
|
if (!dm)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
mlx5_ib_dbg(to_mdev(ibdev), "alloc_memic req: user_length=0x%llx act_length=0x%llx log_alignment=%d\n",
|
|
attr->length, act_size, attr->alignment);
|
|
|
|
err = mlx5_cmd_alloc_memic(memic, &memic_addr,
|
|
act_size, attr->alignment);
|
|
if (err)
|
|
goto err_free;
|
|
|
|
start_offset = memic_addr & ~PAGE_MASK;
|
|
page_idx = (memic_addr - pci_resource_start(memic->dev->pdev, 0) -
|
|
MLX5_CAP64_DEV_MEM(memic->dev, memic_bar_start_addr)) >>
|
|
PAGE_SHIFT;
|
|
|
|
err = uverbs_copy_to(attrs,
|
|
MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
|
|
&start_offset, sizeof(start_offset));
|
|
if (err)
|
|
goto err_dealloc;
|
|
|
|
err = uverbs_copy_to(attrs,
|
|
MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
|
|
&page_idx, sizeof(page_idx));
|
|
if (err)
|
|
goto err_dealloc;
|
|
|
|
bitmap_set(to_mucontext(context)->dm_pages, page_idx,
|
|
DIV_ROUND_UP(act_size, PAGE_SIZE));
|
|
|
|
dm->dev_addr = memic_addr;
|
|
|
|
return &dm->ibdm;
|
|
|
|
err_dealloc:
|
|
mlx5_cmd_dealloc_memic(memic, memic_addr,
|
|
act_size);
|
|
err_free:
|
|
kfree(dm);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
int mlx5_ib_dealloc_dm(struct ib_dm *ibdm)
|
|
{
|
|
struct mlx5_memic *memic = &to_mdev(ibdm->device)->memic;
|
|
struct mlx5_ib_dm *dm = to_mdm(ibdm);
|
|
u64 act_size = roundup(dm->ibdm.length, MLX5_MEMIC_BASE_SIZE);
|
|
u32 page_idx;
|
|
int ret;
|
|
|
|
ret = mlx5_cmd_dealloc_memic(memic, dm->dev_addr, act_size);
|
|
if (ret)
|
|
return ret;
|
|
|
|
page_idx = (dm->dev_addr - pci_resource_start(memic->dev->pdev, 0) -
|
|
MLX5_CAP64_DEV_MEM(memic->dev, memic_bar_start_addr)) >>
|
|
PAGE_SHIFT;
|
|
bitmap_clear(to_mucontext(ibdm->uobject->context)->dm_pages,
|
|
page_idx,
|
|
DIV_ROUND_UP(act_size, PAGE_SIZE));
|
|
|
|
kfree(dm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev,
|
|
struct ib_ucontext *context,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mlx5_ib_alloc_pd_resp resp;
|
|
struct mlx5_ib_pd *pd;
|
|
int err;
|
|
|
|
pd = kmalloc(sizeof(*pd), GFP_KERNEL);
|
|
if (!pd)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn);
|
|
if (err) {
|
|
kfree(pd);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
if (context) {
|
|
resp.pdn = pd->pdn;
|
|
if (ib_copy_to_udata(udata, &resp, sizeof(resp))) {
|
|
mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn);
|
|
kfree(pd);
|
|
return ERR_PTR(-EFAULT);
|
|
}
|
|
}
|
|
|
|
return &pd->ibpd;
|
|
}
|
|
|
|
static int mlx5_ib_dealloc_pd(struct ib_pd *pd)
|
|
{
|
|
struct mlx5_ib_dev *mdev = to_mdev(pd->device);
|
|
struct mlx5_ib_pd *mpd = to_mpd(pd);
|
|
|
|
mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn);
|
|
kfree(mpd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
MATCH_CRITERIA_ENABLE_OUTER_BIT,
|
|
MATCH_CRITERIA_ENABLE_MISC_BIT,
|
|
MATCH_CRITERIA_ENABLE_INNER_BIT,
|
|
MATCH_CRITERIA_ENABLE_MISC2_BIT
|
|
};
|
|
|
|
#define HEADER_IS_ZERO(match_criteria, headers) \
|
|
!(memchr_inv(MLX5_ADDR_OF(fte_match_param, match_criteria, headers), \
|
|
0, MLX5_FLD_SZ_BYTES(fte_match_param, headers))) \
|
|
|
|
static u8 get_match_criteria_enable(u32 *match_criteria)
|
|
{
|
|
u8 match_criteria_enable;
|
|
|
|
match_criteria_enable =
|
|
(!HEADER_IS_ZERO(match_criteria, outer_headers)) <<
|
|
MATCH_CRITERIA_ENABLE_OUTER_BIT;
|
|
match_criteria_enable |=
|
|
(!HEADER_IS_ZERO(match_criteria, misc_parameters)) <<
|
|
MATCH_CRITERIA_ENABLE_MISC_BIT;
|
|
match_criteria_enable |=
|
|
(!HEADER_IS_ZERO(match_criteria, inner_headers)) <<
|
|
MATCH_CRITERIA_ENABLE_INNER_BIT;
|
|
match_criteria_enable |=
|
|
(!HEADER_IS_ZERO(match_criteria, misc_parameters_2)) <<
|
|
MATCH_CRITERIA_ENABLE_MISC2_BIT;
|
|
|
|
return match_criteria_enable;
|
|
}
|
|
|
|
static int set_proto(void *outer_c, void *outer_v, u8 mask, u8 val)
|
|
{
|
|
u8 entry_mask;
|
|
u8 entry_val;
|
|
int err = 0;
|
|
|
|
if (!mask)
|
|
goto out;
|
|
|
|
entry_mask = MLX5_GET(fte_match_set_lyr_2_4, outer_c,
|
|
ip_protocol);
|
|
entry_val = MLX5_GET(fte_match_set_lyr_2_4, outer_v,
|
|
ip_protocol);
|
|
if (!entry_mask) {
|
|
MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_protocol, mask);
|
|
MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_protocol, val);
|
|
goto out;
|
|
}
|
|
/* Don't override existing ip protocol */
|
|
if (mask != entry_mask || val != entry_val)
|
|
err = -EINVAL;
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static void set_flow_label(void *misc_c, void *misc_v, u32 mask, u32 val,
|
|
bool inner)
|
|
{
|
|
if (inner) {
|
|
MLX5_SET(fte_match_set_misc,
|
|
misc_c, inner_ipv6_flow_label, mask);
|
|
MLX5_SET(fte_match_set_misc,
|
|
misc_v, inner_ipv6_flow_label, val);
|
|
} else {
|
|
MLX5_SET(fte_match_set_misc,
|
|
misc_c, outer_ipv6_flow_label, mask);
|
|
MLX5_SET(fte_match_set_misc,
|
|
misc_v, outer_ipv6_flow_label, val);
|
|
}
|
|
}
|
|
|
|
static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val)
|
|
{
|
|
MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_ecn, mask);
|
|
MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_ecn, val);
|
|
MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_dscp, mask >> 2);
|
|
MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_dscp, val >> 2);
|
|
}
|
|
|
|
static int check_mpls_supp_fields(u32 field_support, const __be32 *set_mask)
|
|
{
|
|
if (MLX5_GET(fte_match_mpls, set_mask, mpls_label) &&
|
|
!(field_support & MLX5_FIELD_SUPPORT_MPLS_LABEL))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (MLX5_GET(fte_match_mpls, set_mask, mpls_exp) &&
|
|
!(field_support & MLX5_FIELD_SUPPORT_MPLS_EXP))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (MLX5_GET(fte_match_mpls, set_mask, mpls_s_bos) &&
|
|
!(field_support & MLX5_FIELD_SUPPORT_MPLS_S_BOS))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (MLX5_GET(fte_match_mpls, set_mask, mpls_ttl) &&
|
|
!(field_support & MLX5_FIELD_SUPPORT_MPLS_TTL))
|
|
return -EOPNOTSUPP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define LAST_ETH_FIELD vlan_tag
|
|
#define LAST_IB_FIELD sl
|
|
#define LAST_IPV4_FIELD tos
|
|
#define LAST_IPV6_FIELD traffic_class
|
|
#define LAST_TCP_UDP_FIELD src_port
|
|
#define LAST_TUNNEL_FIELD tunnel_id
|
|
#define LAST_FLOW_TAG_FIELD tag_id
|
|
#define LAST_DROP_FIELD size
|
|
#define LAST_COUNTERS_FIELD counters
|
|
|
|
/* Field is the last supported field */
|
|
#define FIELDS_NOT_SUPPORTED(filter, field)\
|
|
memchr_inv((void *)&filter.field +\
|
|
sizeof(filter.field), 0,\
|
|
sizeof(filter) -\
|
|
offsetof(typeof(filter), field) -\
|
|
sizeof(filter.field))
|
|
|
|
static int parse_flow_flow_action(const union ib_flow_spec *ib_spec,
|
|
const struct ib_flow_attr *flow_attr,
|
|
struct mlx5_flow_act *action)
|
|
{
|
|
struct mlx5_ib_flow_action *maction = to_mflow_act(ib_spec->action.act);
|
|
|
|
switch (maction->ib_action.type) {
|
|
case IB_FLOW_ACTION_ESP:
|
|
/* Currently only AES_GCM keymat is supported by the driver */
|
|
action->esp_id = (uintptr_t)maction->esp_aes_gcm.ctx;
|
|
action->action |= flow_attr->flags & IB_FLOW_ATTR_FLAGS_EGRESS ?
|
|
MLX5_FLOW_CONTEXT_ACTION_ENCRYPT :
|
|
MLX5_FLOW_CONTEXT_ACTION_DECRYPT;
|
|
return 0;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c,
|
|
u32 *match_v, const union ib_flow_spec *ib_spec,
|
|
const struct ib_flow_attr *flow_attr,
|
|
struct mlx5_flow_act *action, u32 prev_type)
|
|
{
|
|
void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
|
|
misc_parameters);
|
|
void *misc_params_v = MLX5_ADDR_OF(fte_match_param, match_v,
|
|
misc_parameters);
|
|
void *misc_params2_c = MLX5_ADDR_OF(fte_match_param, match_c,
|
|
misc_parameters_2);
|
|
void *misc_params2_v = MLX5_ADDR_OF(fte_match_param, match_v,
|
|
misc_parameters_2);
|
|
void *headers_c;
|
|
void *headers_v;
|
|
int match_ipv;
|
|
int ret;
|
|
|
|
if (ib_spec->type & IB_FLOW_SPEC_INNER) {
|
|
headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
|
|
inner_headers);
|
|
headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
|
|
inner_headers);
|
|
match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.inner_ip_version);
|
|
} else {
|
|
headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
|
|
outer_headers);
|
|
headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
|
|
outer_headers);
|
|
match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.outer_ip_version);
|
|
}
|
|
|
|
switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) {
|
|
case IB_FLOW_SPEC_ETH:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
|
|
dmac_47_16),
|
|
ib_spec->eth.mask.dst_mac);
|
|
ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
|
|
dmac_47_16),
|
|
ib_spec->eth.val.dst_mac);
|
|
|
|
ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
|
|
smac_47_16),
|
|
ib_spec->eth.mask.src_mac);
|
|
ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
|
|
smac_47_16),
|
|
ib_spec->eth.val.src_mac);
|
|
|
|
if (ib_spec->eth.mask.vlan_tag) {
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
cvlan_tag, 1);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
cvlan_tag, 1);
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
first_vid, ntohs(ib_spec->eth.mask.vlan_tag));
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
first_vid, ntohs(ib_spec->eth.val.vlan_tag));
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
first_cfi,
|
|
ntohs(ib_spec->eth.mask.vlan_tag) >> 12);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
first_cfi,
|
|
ntohs(ib_spec->eth.val.vlan_tag) >> 12);
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
first_prio,
|
|
ntohs(ib_spec->eth.mask.vlan_tag) >> 13);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
first_prio,
|
|
ntohs(ib_spec->eth.val.vlan_tag) >> 13);
|
|
}
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
ethertype, ntohs(ib_spec->eth.mask.ether_type));
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
ethertype, ntohs(ib_spec->eth.val.ether_type));
|
|
break;
|
|
case IB_FLOW_SPEC_IPV4:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (match_ipv) {
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
ip_version, 0xf);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
ip_version, MLX5_FS_IPV4_VERSION);
|
|
} else {
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
ethertype, 0xffff);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
ethertype, ETH_P_IP);
|
|
}
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
|
|
src_ipv4_src_ipv6.ipv4_layout.ipv4),
|
|
&ib_spec->ipv4.mask.src_ip,
|
|
sizeof(ib_spec->ipv4.mask.src_ip));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
|
|
src_ipv4_src_ipv6.ipv4_layout.ipv4),
|
|
&ib_spec->ipv4.val.src_ip,
|
|
sizeof(ib_spec->ipv4.val.src_ip));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
|
|
dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
|
|
&ib_spec->ipv4.mask.dst_ip,
|
|
sizeof(ib_spec->ipv4.mask.dst_ip));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
|
|
dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
|
|
&ib_spec->ipv4.val.dst_ip,
|
|
sizeof(ib_spec->ipv4.val.dst_ip));
|
|
|
|
set_tos(headers_c, headers_v,
|
|
ib_spec->ipv4.mask.tos, ib_spec->ipv4.val.tos);
|
|
|
|
if (set_proto(headers_c, headers_v,
|
|
ib_spec->ipv4.mask.proto,
|
|
ib_spec->ipv4.val.proto))
|
|
return -EINVAL;
|
|
break;
|
|
case IB_FLOW_SPEC_IPV6:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->ipv6.mask, LAST_IPV6_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (match_ipv) {
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
ip_version, 0xf);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
ip_version, MLX5_FS_IPV6_VERSION);
|
|
} else {
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
|
|
ethertype, 0xffff);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
|
|
ethertype, ETH_P_IPV6);
|
|
}
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
|
|
src_ipv4_src_ipv6.ipv6_layout.ipv6),
|
|
&ib_spec->ipv6.mask.src_ip,
|
|
sizeof(ib_spec->ipv6.mask.src_ip));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
|
|
src_ipv4_src_ipv6.ipv6_layout.ipv6),
|
|
&ib_spec->ipv6.val.src_ip,
|
|
sizeof(ib_spec->ipv6.val.src_ip));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
|
|
dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
|
|
&ib_spec->ipv6.mask.dst_ip,
|
|
sizeof(ib_spec->ipv6.mask.dst_ip));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
|
|
dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
|
|
&ib_spec->ipv6.val.dst_ip,
|
|
sizeof(ib_spec->ipv6.val.dst_ip));
|
|
|
|
set_tos(headers_c, headers_v,
|
|
ib_spec->ipv6.mask.traffic_class,
|
|
ib_spec->ipv6.val.traffic_class);
|
|
|
|
if (set_proto(headers_c, headers_v,
|
|
ib_spec->ipv6.mask.next_hdr,
|
|
ib_spec->ipv6.val.next_hdr))
|
|
return -EINVAL;
|
|
|
|
set_flow_label(misc_params_c, misc_params_v,
|
|
ntohl(ib_spec->ipv6.mask.flow_label),
|
|
ntohl(ib_spec->ipv6.val.flow_label),
|
|
ib_spec->type & IB_FLOW_SPEC_INNER);
|
|
break;
|
|
case IB_FLOW_SPEC_ESP:
|
|
if (ib_spec->esp.mask.seq)
|
|
return -EOPNOTSUPP;
|
|
|
|
MLX5_SET(fte_match_set_misc, misc_params_c, outer_esp_spi,
|
|
ntohl(ib_spec->esp.mask.spi));
|
|
MLX5_SET(fte_match_set_misc, misc_params_v, outer_esp_spi,
|
|
ntohl(ib_spec->esp.val.spi));
|
|
break;
|
|
case IB_FLOW_SPEC_TCP:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask,
|
|
LAST_TCP_UDP_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (set_proto(headers_c, headers_v, 0xff, IPPROTO_TCP))
|
|
return -EINVAL;
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_sport,
|
|
ntohs(ib_spec->tcp_udp.mask.src_port));
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_sport,
|
|
ntohs(ib_spec->tcp_udp.val.src_port));
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_dport,
|
|
ntohs(ib_spec->tcp_udp.mask.dst_port));
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_dport,
|
|
ntohs(ib_spec->tcp_udp.val.dst_port));
|
|
break;
|
|
case IB_FLOW_SPEC_UDP:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask,
|
|
LAST_TCP_UDP_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (set_proto(headers_c, headers_v, 0xff, IPPROTO_UDP))
|
|
return -EINVAL;
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_sport,
|
|
ntohs(ib_spec->tcp_udp.mask.src_port));
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_sport,
|
|
ntohs(ib_spec->tcp_udp.val.src_port));
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_dport,
|
|
ntohs(ib_spec->tcp_udp.mask.dst_port));
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport,
|
|
ntohs(ib_spec->tcp_udp.val.dst_port));
|
|
break;
|
|
case IB_FLOW_SPEC_GRE:
|
|
if (ib_spec->gre.mask.c_ks_res0_ver)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (set_proto(headers_c, headers_v, 0xff, IPPROTO_GRE))
|
|
return -EINVAL;
|
|
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol,
|
|
0xff);
|
|
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
|
|
IPPROTO_GRE);
|
|
|
|
MLX5_SET(fte_match_set_misc, misc_params_c, gre_protocol,
|
|
ntohs(ib_spec->gre.mask.protocol));
|
|
MLX5_SET(fte_match_set_misc, misc_params_v, gre_protocol,
|
|
ntohs(ib_spec->gre.val.protocol));
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc, misc_params_c,
|
|
gre_key_h),
|
|
&ib_spec->gre.mask.key,
|
|
sizeof(ib_spec->gre.mask.key));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc, misc_params_v,
|
|
gre_key_h),
|
|
&ib_spec->gre.val.key,
|
|
sizeof(ib_spec->gre.val.key));
|
|
break;
|
|
case IB_FLOW_SPEC_MPLS:
|
|
switch (prev_type) {
|
|
case IB_FLOW_SPEC_UDP:
|
|
if (check_mpls_supp_fields(MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.outer_first_mpls_over_udp),
|
|
&ib_spec->mpls.mask.tag))
|
|
return -EOPNOTSUPP;
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_v,
|
|
outer_first_mpls_over_udp),
|
|
&ib_spec->mpls.val.tag,
|
|
sizeof(ib_spec->mpls.val.tag));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_c,
|
|
outer_first_mpls_over_udp),
|
|
&ib_spec->mpls.mask.tag,
|
|
sizeof(ib_spec->mpls.mask.tag));
|
|
break;
|
|
case IB_FLOW_SPEC_GRE:
|
|
if (check_mpls_supp_fields(MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.outer_first_mpls_over_gre),
|
|
&ib_spec->mpls.mask.tag))
|
|
return -EOPNOTSUPP;
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_v,
|
|
outer_first_mpls_over_gre),
|
|
&ib_spec->mpls.val.tag,
|
|
sizeof(ib_spec->mpls.val.tag));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_c,
|
|
outer_first_mpls_over_gre),
|
|
&ib_spec->mpls.mask.tag,
|
|
sizeof(ib_spec->mpls.mask.tag));
|
|
break;
|
|
default:
|
|
if (ib_spec->type & IB_FLOW_SPEC_INNER) {
|
|
if (check_mpls_supp_fields(MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.inner_first_mpls),
|
|
&ib_spec->mpls.mask.tag))
|
|
return -EOPNOTSUPP;
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_v,
|
|
inner_first_mpls),
|
|
&ib_spec->mpls.val.tag,
|
|
sizeof(ib_spec->mpls.val.tag));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_c,
|
|
inner_first_mpls),
|
|
&ib_spec->mpls.mask.tag,
|
|
sizeof(ib_spec->mpls.mask.tag));
|
|
} else {
|
|
if (check_mpls_supp_fields(MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.outer_first_mpls),
|
|
&ib_spec->mpls.mask.tag))
|
|
return -EOPNOTSUPP;
|
|
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_v,
|
|
outer_first_mpls),
|
|
&ib_spec->mpls.val.tag,
|
|
sizeof(ib_spec->mpls.val.tag));
|
|
memcpy(MLX5_ADDR_OF(fte_match_set_misc2, misc_params2_c,
|
|
outer_first_mpls),
|
|
&ib_spec->mpls.mask.tag,
|
|
sizeof(ib_spec->mpls.mask.tag));
|
|
}
|
|
}
|
|
break;
|
|
case IB_FLOW_SPEC_VXLAN_TUNNEL:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->tunnel.mask,
|
|
LAST_TUNNEL_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
MLX5_SET(fte_match_set_misc, misc_params_c, vxlan_vni,
|
|
ntohl(ib_spec->tunnel.mask.tunnel_id));
|
|
MLX5_SET(fte_match_set_misc, misc_params_v, vxlan_vni,
|
|
ntohl(ib_spec->tunnel.val.tunnel_id));
|
|
break;
|
|
case IB_FLOW_SPEC_ACTION_TAG:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->flow_tag,
|
|
LAST_FLOW_TAG_FIELD))
|
|
return -EOPNOTSUPP;
|
|
if (ib_spec->flow_tag.tag_id >= BIT(24))
|
|
return -EINVAL;
|
|
|
|
action->flow_tag = ib_spec->flow_tag.tag_id;
|
|
action->has_flow_tag = true;
|
|
break;
|
|
case IB_FLOW_SPEC_ACTION_DROP:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->drop,
|
|
LAST_DROP_FIELD))
|
|
return -EOPNOTSUPP;
|
|
action->action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
|
|
break;
|
|
case IB_FLOW_SPEC_ACTION_HANDLE:
|
|
ret = parse_flow_flow_action(ib_spec, flow_attr, action);
|
|
if (ret)
|
|
return ret;
|
|
break;
|
|
case IB_FLOW_SPEC_ACTION_COUNT:
|
|
if (FIELDS_NOT_SUPPORTED(ib_spec->flow_count,
|
|
LAST_COUNTERS_FIELD))
|
|
return -EOPNOTSUPP;
|
|
|
|
/* for now support only one counters spec per flow */
|
|
if (action->action & MLX5_FLOW_CONTEXT_ACTION_COUNT)
|
|
return -EINVAL;
|
|
|
|
action->counters = ib_spec->flow_count.counters;
|
|
action->action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* If a flow could catch both multicast and unicast packets,
|
|
* it won't fall into the multicast flow steering table and this rule
|
|
* could steal other multicast packets.
|
|
*/
|
|
static bool flow_is_multicast_only(const struct ib_flow_attr *ib_attr)
|
|
{
|
|
union ib_flow_spec *flow_spec;
|
|
|
|
if (ib_attr->type != IB_FLOW_ATTR_NORMAL ||
|
|
ib_attr->num_of_specs < 1)
|
|
return false;
|
|
|
|
flow_spec = (union ib_flow_spec *)(ib_attr + 1);
|
|
if (flow_spec->type == IB_FLOW_SPEC_IPV4) {
|
|
struct ib_flow_spec_ipv4 *ipv4_spec;
|
|
|
|
ipv4_spec = (struct ib_flow_spec_ipv4 *)flow_spec;
|
|
if (ipv4_is_multicast(ipv4_spec->val.dst_ip))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
if (flow_spec->type == IB_FLOW_SPEC_ETH) {
|
|
struct ib_flow_spec_eth *eth_spec;
|
|
|
|
eth_spec = (struct ib_flow_spec_eth *)flow_spec;
|
|
return is_multicast_ether_addr(eth_spec->mask.dst_mac) &&
|
|
is_multicast_ether_addr(eth_spec->val.dst_mac);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
enum valid_spec {
|
|
VALID_SPEC_INVALID,
|
|
VALID_SPEC_VALID,
|
|
VALID_SPEC_NA,
|
|
};
|
|
|
|
static enum valid_spec
|
|
is_valid_esp_aes_gcm(struct mlx5_core_dev *mdev,
|
|
const struct mlx5_flow_spec *spec,
|
|
const struct mlx5_flow_act *flow_act,
|
|
bool egress)
|
|
{
|
|
const u32 *match_c = spec->match_criteria;
|
|
bool is_crypto =
|
|
(flow_act->action & (MLX5_FLOW_CONTEXT_ACTION_ENCRYPT |
|
|
MLX5_FLOW_CONTEXT_ACTION_DECRYPT));
|
|
bool is_ipsec = mlx5_fs_is_ipsec_flow(match_c);
|
|
bool is_drop = flow_act->action & MLX5_FLOW_CONTEXT_ACTION_DROP;
|
|
|
|
/*
|
|
* Currently only crypto is supported in egress, when regular egress
|
|
* rules would be supported, always return VALID_SPEC_NA.
|
|
*/
|
|
if (!is_crypto)
|
|
return egress ? VALID_SPEC_INVALID : VALID_SPEC_NA;
|
|
|
|
return is_crypto && is_ipsec &&
|
|
(!egress || (!is_drop && !flow_act->has_flow_tag)) ?
|
|
VALID_SPEC_VALID : VALID_SPEC_INVALID;
|
|
}
|
|
|
|
static bool is_valid_spec(struct mlx5_core_dev *mdev,
|
|
const struct mlx5_flow_spec *spec,
|
|
const struct mlx5_flow_act *flow_act,
|
|
bool egress)
|
|
{
|
|
/* We curretly only support ipsec egress flow */
|
|
return is_valid_esp_aes_gcm(mdev, spec, flow_act, egress) != VALID_SPEC_INVALID;
|
|
}
|
|
|
|
static bool is_valid_ethertype(struct mlx5_core_dev *mdev,
|
|
const struct ib_flow_attr *flow_attr,
|
|
bool check_inner)
|
|
{
|
|
union ib_flow_spec *ib_spec = (union ib_flow_spec *)(flow_attr + 1);
|
|
int match_ipv = check_inner ?
|
|
MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.inner_ip_version) :
|
|
MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
|
|
ft_field_support.outer_ip_version);
|
|
int inner_bit = check_inner ? IB_FLOW_SPEC_INNER : 0;
|
|
bool ipv4_spec_valid, ipv6_spec_valid;
|
|
unsigned int ip_spec_type = 0;
|
|
bool has_ethertype = false;
|
|
unsigned int spec_index;
|
|
bool mask_valid = true;
|
|
u16 eth_type = 0;
|
|
bool type_valid;
|
|
|
|
/* Validate that ethertype is correct */
|
|
for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) {
|
|
if ((ib_spec->type == (IB_FLOW_SPEC_ETH | inner_bit)) &&
|
|
ib_spec->eth.mask.ether_type) {
|
|
mask_valid = (ib_spec->eth.mask.ether_type ==
|
|
htons(0xffff));
|
|
has_ethertype = true;
|
|
eth_type = ntohs(ib_spec->eth.val.ether_type);
|
|
} else if ((ib_spec->type == (IB_FLOW_SPEC_IPV4 | inner_bit)) ||
|
|
(ib_spec->type == (IB_FLOW_SPEC_IPV6 | inner_bit))) {
|
|
ip_spec_type = ib_spec->type;
|
|
}
|
|
ib_spec = (void *)ib_spec + ib_spec->size;
|
|
}
|
|
|
|
type_valid = (!has_ethertype) || (!ip_spec_type);
|
|
if (!type_valid && mask_valid) {
|
|
ipv4_spec_valid = (eth_type == ETH_P_IP) &&
|
|
(ip_spec_type == (IB_FLOW_SPEC_IPV4 | inner_bit));
|
|
ipv6_spec_valid = (eth_type == ETH_P_IPV6) &&
|
|
(ip_spec_type == (IB_FLOW_SPEC_IPV6 | inner_bit));
|
|
|
|
type_valid = (ipv4_spec_valid) || (ipv6_spec_valid) ||
|
|
(((eth_type == ETH_P_MPLS_UC) ||
|
|
(eth_type == ETH_P_MPLS_MC)) && match_ipv);
|
|
}
|
|
|
|
return type_valid;
|
|
}
|
|
|
|
static bool is_valid_attr(struct mlx5_core_dev *mdev,
|
|
const struct ib_flow_attr *flow_attr)
|
|
{
|
|
return is_valid_ethertype(mdev, flow_attr, false) &&
|
|
is_valid_ethertype(mdev, flow_attr, true);
|
|
}
|
|
|
|
static void put_flow_table(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *prio, bool ft_added)
|
|
{
|
|
prio->refcount -= !!ft_added;
|
|
if (!prio->refcount) {
|
|
mlx5_destroy_flow_table(prio->flow_table);
|
|
prio->flow_table = NULL;
|
|
}
|
|
}
|
|
|
|
static void counters_clear_description(struct ib_counters *counters)
|
|
{
|
|
struct mlx5_ib_mcounters *mcounters = to_mcounters(counters);
|
|
|
|
mutex_lock(&mcounters->mcntrs_mutex);
|
|
kfree(mcounters->counters_data);
|
|
mcounters->counters_data = NULL;
|
|
mcounters->cntrs_max_index = 0;
|
|
mutex_unlock(&mcounters->mcntrs_mutex);
|
|
}
|
|
|
|
static int mlx5_ib_destroy_flow(struct ib_flow *flow_id)
|
|
{
|
|
struct mlx5_ib_flow_handler *handler = container_of(flow_id,
|
|
struct mlx5_ib_flow_handler,
|
|
ibflow);
|
|
struct mlx5_ib_flow_handler *iter, *tmp;
|
|
struct mlx5_ib_dev *dev = handler->dev;
|
|
|
|
mutex_lock(&dev->flow_db->lock);
|
|
|
|
list_for_each_entry_safe(iter, tmp, &handler->list, list) {
|
|
mlx5_del_flow_rules(iter->rule);
|
|
put_flow_table(dev, iter->prio, true);
|
|
list_del(&iter->list);
|
|
kfree(iter);
|
|
}
|
|
|
|
mlx5_del_flow_rules(handler->rule);
|
|
put_flow_table(dev, handler->prio, true);
|
|
if (handler->ibcounters &&
|
|
atomic_read(&handler->ibcounters->usecnt) == 1)
|
|
counters_clear_description(handler->ibcounters);
|
|
|
|
mutex_unlock(&dev->flow_db->lock);
|
|
if (handler->flow_matcher)
|
|
atomic_dec(&handler->flow_matcher->usecnt);
|
|
kfree(handler);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ib_prio_to_core_prio(unsigned int priority, bool dont_trap)
|
|
{
|
|
priority *= 2;
|
|
if (!dont_trap)
|
|
priority++;
|
|
return priority;
|
|
}
|
|
|
|
enum flow_table_type {
|
|
MLX5_IB_FT_RX,
|
|
MLX5_IB_FT_TX
|
|
};
|
|
|
|
#define MLX5_FS_MAX_TYPES 6
|
|
#define MLX5_FS_MAX_ENTRIES BIT(16)
|
|
|
|
static struct mlx5_ib_flow_prio *_get_prio(struct mlx5_flow_namespace *ns,
|
|
struct mlx5_ib_flow_prio *prio,
|
|
int priority,
|
|
int num_entries, int num_groups)
|
|
{
|
|
struct mlx5_flow_table *ft;
|
|
|
|
ft = mlx5_create_auto_grouped_flow_table(ns, priority,
|
|
num_entries,
|
|
num_groups,
|
|
0, 0);
|
|
if (IS_ERR(ft))
|
|
return ERR_CAST(ft);
|
|
|
|
prio->flow_table = ft;
|
|
prio->refcount = 0;
|
|
return prio;
|
|
}
|
|
|
|
static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev,
|
|
struct ib_flow_attr *flow_attr,
|
|
enum flow_table_type ft_type)
|
|
{
|
|
bool dont_trap = flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP;
|
|
struct mlx5_flow_namespace *ns = NULL;
|
|
struct mlx5_ib_flow_prio *prio;
|
|
struct mlx5_flow_table *ft;
|
|
int max_table_size;
|
|
int num_entries;
|
|
int num_groups;
|
|
int priority;
|
|
|
|
max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,
|
|
log_max_ft_size));
|
|
if (flow_attr->type == IB_FLOW_ATTR_NORMAL) {
|
|
if (ft_type == MLX5_IB_FT_TX)
|
|
priority = 0;
|
|
else if (flow_is_multicast_only(flow_attr) &&
|
|
!dont_trap)
|
|
priority = MLX5_IB_FLOW_MCAST_PRIO;
|
|
else
|
|
priority = ib_prio_to_core_prio(flow_attr->priority,
|
|
dont_trap);
|
|
ns = mlx5_get_flow_namespace(dev->mdev,
|
|
ft_type == MLX5_IB_FT_TX ?
|
|
MLX5_FLOW_NAMESPACE_EGRESS :
|
|
MLX5_FLOW_NAMESPACE_BYPASS);
|
|
num_entries = MLX5_FS_MAX_ENTRIES;
|
|
num_groups = MLX5_FS_MAX_TYPES;
|
|
prio = &dev->flow_db->prios[priority];
|
|
} else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
|
|
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) {
|
|
ns = mlx5_get_flow_namespace(dev->mdev,
|
|
MLX5_FLOW_NAMESPACE_LEFTOVERS);
|
|
build_leftovers_ft_param(&priority,
|
|
&num_entries,
|
|
&num_groups);
|
|
prio = &dev->flow_db->prios[MLX5_IB_FLOW_LEFTOVERS_PRIO];
|
|
} else if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) {
|
|
if (!MLX5_CAP_FLOWTABLE(dev->mdev,
|
|
allow_sniffer_and_nic_rx_shared_tir))
|
|
return ERR_PTR(-ENOTSUPP);
|
|
|
|
ns = mlx5_get_flow_namespace(dev->mdev, ft_type == MLX5_IB_FT_RX ?
|
|
MLX5_FLOW_NAMESPACE_SNIFFER_RX :
|
|
MLX5_FLOW_NAMESPACE_SNIFFER_TX);
|
|
|
|
prio = &dev->flow_db->sniffer[ft_type];
|
|
priority = 0;
|
|
num_entries = 1;
|
|
num_groups = 1;
|
|
}
|
|
|
|
if (!ns)
|
|
return ERR_PTR(-ENOTSUPP);
|
|
|
|
if (num_entries > max_table_size)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
ft = prio->flow_table;
|
|
if (!ft)
|
|
return _get_prio(ns, prio, priority, num_entries, num_groups);
|
|
|
|
return prio;
|
|
}
|
|
|
|
static void set_underlay_qp(struct mlx5_ib_dev *dev,
|
|
struct mlx5_flow_spec *spec,
|
|
u32 underlay_qpn)
|
|
{
|
|
void *misc_params_c = MLX5_ADDR_OF(fte_match_param,
|
|
spec->match_criteria,
|
|
misc_parameters);
|
|
void *misc_params_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
|
|
misc_parameters);
|
|
|
|
if (underlay_qpn &&
|
|
MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,
|
|
ft_field_support.bth_dst_qp)) {
|
|
MLX5_SET(fte_match_set_misc,
|
|
misc_params_v, bth_dst_qp, underlay_qpn);
|
|
MLX5_SET(fte_match_set_misc,
|
|
misc_params_c, bth_dst_qp, 0xffffff);
|
|
}
|
|
}
|
|
|
|
static int read_flow_counters(struct ib_device *ibdev,
|
|
struct mlx5_read_counters_attr *read_attr)
|
|
{
|
|
struct mlx5_fc *fc = read_attr->hw_cntrs_hndl;
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
|
|
return mlx5_fc_query(dev->mdev, fc,
|
|
&read_attr->out[IB_COUNTER_PACKETS],
|
|
&read_attr->out[IB_COUNTER_BYTES]);
|
|
}
|
|
|
|
/* flow counters currently expose two counters packets and bytes */
|
|
#define FLOW_COUNTERS_NUM 2
|
|
static int counters_set_description(struct ib_counters *counters,
|
|
enum mlx5_ib_counters_type counters_type,
|
|
struct mlx5_ib_flow_counters_desc *desc_data,
|
|
u32 ncounters)
|
|
{
|
|
struct mlx5_ib_mcounters *mcounters = to_mcounters(counters);
|
|
u32 cntrs_max_index = 0;
|
|
int i;
|
|
|
|
if (counters_type != MLX5_IB_COUNTERS_FLOW)
|
|
return -EINVAL;
|
|
|
|
/* init the fields for the object */
|
|
mcounters->type = counters_type;
|
|
mcounters->read_counters = read_flow_counters;
|
|
mcounters->counters_num = FLOW_COUNTERS_NUM;
|
|
mcounters->ncounters = ncounters;
|
|
/* each counter entry have both description and index pair */
|
|
for (i = 0; i < ncounters; i++) {
|
|
if (desc_data[i].description > IB_COUNTER_BYTES)
|
|
return -EINVAL;
|
|
|
|
if (cntrs_max_index <= desc_data[i].index)
|
|
cntrs_max_index = desc_data[i].index + 1;
|
|
}
|
|
|
|
mutex_lock(&mcounters->mcntrs_mutex);
|
|
mcounters->counters_data = desc_data;
|
|
mcounters->cntrs_max_index = cntrs_max_index;
|
|
mutex_unlock(&mcounters->mcntrs_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define MAX_COUNTERS_NUM (USHRT_MAX / (sizeof(u32) * 2))
|
|
static int flow_counters_set_data(struct ib_counters *ibcounters,
|
|
struct mlx5_ib_create_flow *ucmd)
|
|
{
|
|
struct mlx5_ib_mcounters *mcounters = to_mcounters(ibcounters);
|
|
struct mlx5_ib_flow_counters_data *cntrs_data = NULL;
|
|
struct mlx5_ib_flow_counters_desc *desc_data = NULL;
|
|
bool hw_hndl = false;
|
|
int ret = 0;
|
|
|
|
if (ucmd && ucmd->ncounters_data != 0) {
|
|
cntrs_data = ucmd->data;
|
|
if (cntrs_data->ncounters > MAX_COUNTERS_NUM)
|
|
return -EINVAL;
|
|
|
|
desc_data = kcalloc(cntrs_data->ncounters,
|
|
sizeof(*desc_data),
|
|
GFP_KERNEL);
|
|
if (!desc_data)
|
|
return -ENOMEM;
|
|
|
|
if (copy_from_user(desc_data,
|
|
u64_to_user_ptr(cntrs_data->counters_data),
|
|
sizeof(*desc_data) * cntrs_data->ncounters)) {
|
|
ret = -EFAULT;
|
|
goto free;
|
|
}
|
|
}
|
|
|
|
if (!mcounters->hw_cntrs_hndl) {
|
|
mcounters->hw_cntrs_hndl = mlx5_fc_create(
|
|
to_mdev(ibcounters->device)->mdev, false);
|
|
if (IS_ERR(mcounters->hw_cntrs_hndl)) {
|
|
ret = PTR_ERR(mcounters->hw_cntrs_hndl);
|
|
goto free;
|
|
}
|
|
hw_hndl = true;
|
|
}
|
|
|
|
if (desc_data) {
|
|
/* counters already bound to at least one flow */
|
|
if (mcounters->cntrs_max_index) {
|
|
ret = -EINVAL;
|
|
goto free_hndl;
|
|
}
|
|
|
|
ret = counters_set_description(ibcounters,
|
|
MLX5_IB_COUNTERS_FLOW,
|
|
desc_data,
|
|
cntrs_data->ncounters);
|
|
if (ret)
|
|
goto free_hndl;
|
|
|
|
} else if (!mcounters->cntrs_max_index) {
|
|
/* counters not bound yet, must have udata passed */
|
|
ret = -EINVAL;
|
|
goto free_hndl;
|
|
}
|
|
|
|
return 0;
|
|
|
|
free_hndl:
|
|
if (hw_hndl) {
|
|
mlx5_fc_destroy(to_mdev(ibcounters->device)->mdev,
|
|
mcounters->hw_cntrs_hndl);
|
|
mcounters->hw_cntrs_hndl = NULL;
|
|
}
|
|
free:
|
|
kfree(desc_data);
|
|
return ret;
|
|
}
|
|
|
|
static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *ft_prio,
|
|
const struct ib_flow_attr *flow_attr,
|
|
struct mlx5_flow_destination *dst,
|
|
u32 underlay_qpn,
|
|
struct mlx5_ib_create_flow *ucmd)
|
|
{
|
|
struct mlx5_flow_table *ft = ft_prio->flow_table;
|
|
struct mlx5_ib_flow_handler *handler;
|
|
struct mlx5_flow_act flow_act = {.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG};
|
|
struct mlx5_flow_spec *spec;
|
|
struct mlx5_flow_destination dest_arr[2] = {};
|
|
struct mlx5_flow_destination *rule_dst = dest_arr;
|
|
const void *ib_flow = (const void *)flow_attr + sizeof(*flow_attr);
|
|
unsigned int spec_index;
|
|
u32 prev_type = 0;
|
|
int err = 0;
|
|
int dest_num = 0;
|
|
bool is_egress = flow_attr->flags & IB_FLOW_ATTR_FLAGS_EGRESS;
|
|
|
|
if (!is_valid_attr(dev->mdev, flow_attr))
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
|
|
handler = kzalloc(sizeof(*handler), GFP_KERNEL);
|
|
if (!handler || !spec) {
|
|
err = -ENOMEM;
|
|
goto free;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&handler->list);
|
|
|
|
for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) {
|
|
err = parse_flow_attr(dev->mdev, spec->match_criteria,
|
|
spec->match_value,
|
|
ib_flow, flow_attr, &flow_act,
|
|
prev_type);
|
|
if (err < 0)
|
|
goto free;
|
|
|
|
prev_type = ((union ib_flow_spec *)ib_flow)->type;
|
|
ib_flow += ((union ib_flow_spec *)ib_flow)->size;
|
|
}
|
|
|
|
if (dst && !(flow_act.action & MLX5_FLOW_CONTEXT_ACTION_DROP)) {
|
|
memcpy(&dest_arr[0], dst, sizeof(*dst));
|
|
dest_num++;
|
|
}
|
|
|
|
if (!flow_is_multicast_only(flow_attr))
|
|
set_underlay_qp(dev, spec, underlay_qpn);
|
|
|
|
if (dev->rep) {
|
|
void *misc;
|
|
|
|
misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
|
|
misc_parameters);
|
|
MLX5_SET(fte_match_set_misc, misc, source_port,
|
|
dev->rep->vport);
|
|
misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
|
|
misc_parameters);
|
|
MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
|
|
}
|
|
|
|
spec->match_criteria_enable = get_match_criteria_enable(spec->match_criteria);
|
|
|
|
if (is_egress &&
|
|
!is_valid_spec(dev->mdev, spec, &flow_act, is_egress)) {
|
|
err = -EINVAL;
|
|
goto free;
|
|
}
|
|
|
|
if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
|
|
err = flow_counters_set_data(flow_act.counters, ucmd);
|
|
if (err)
|
|
goto free;
|
|
|
|
handler->ibcounters = flow_act.counters;
|
|
dest_arr[dest_num].type =
|
|
MLX5_FLOW_DESTINATION_TYPE_COUNTER;
|
|
dest_arr[dest_num].counter =
|
|
to_mcounters(flow_act.counters)->hw_cntrs_hndl;
|
|
dest_num++;
|
|
}
|
|
|
|
if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_DROP) {
|
|
if (!dest_num)
|
|
rule_dst = NULL;
|
|
} else {
|
|
if (is_egress)
|
|
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_ALLOW;
|
|
else
|
|
flow_act.action |=
|
|
dest_num ? MLX5_FLOW_CONTEXT_ACTION_FWD_DEST :
|
|
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO;
|
|
}
|
|
|
|
if (flow_act.has_flow_tag &&
|
|
(flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
|
|
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) {
|
|
mlx5_ib_warn(dev, "Flow tag %u and attribute type %x isn't allowed in leftovers\n",
|
|
flow_act.flow_tag, flow_attr->type);
|
|
err = -EINVAL;
|
|
goto free;
|
|
}
|
|
handler->rule = mlx5_add_flow_rules(ft, spec,
|
|
&flow_act,
|
|
rule_dst, dest_num);
|
|
|
|
if (IS_ERR(handler->rule)) {
|
|
err = PTR_ERR(handler->rule);
|
|
goto free;
|
|
}
|
|
|
|
ft_prio->refcount++;
|
|
handler->prio = ft_prio;
|
|
handler->dev = dev;
|
|
|
|
ft_prio->flow_table = ft;
|
|
free:
|
|
if (err && handler) {
|
|
if (handler->ibcounters &&
|
|
atomic_read(&handler->ibcounters->usecnt) == 1)
|
|
counters_clear_description(handler->ibcounters);
|
|
kfree(handler);
|
|
}
|
|
kvfree(spec);
|
|
return err ? ERR_PTR(err) : handler;
|
|
}
|
|
|
|
static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *ft_prio,
|
|
const struct ib_flow_attr *flow_attr,
|
|
struct mlx5_flow_destination *dst)
|
|
{
|
|
return _create_flow_rule(dev, ft_prio, flow_attr, dst, 0, NULL);
|
|
}
|
|
|
|
static struct mlx5_ib_flow_handler *create_dont_trap_rule(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *ft_prio,
|
|
struct ib_flow_attr *flow_attr,
|
|
struct mlx5_flow_destination *dst)
|
|
{
|
|
struct mlx5_ib_flow_handler *handler_dst = NULL;
|
|
struct mlx5_ib_flow_handler *handler = NULL;
|
|
|
|
handler = create_flow_rule(dev, ft_prio, flow_attr, NULL);
|
|
if (!IS_ERR(handler)) {
|
|
handler_dst = create_flow_rule(dev, ft_prio,
|
|
flow_attr, dst);
|
|
if (IS_ERR(handler_dst)) {
|
|
mlx5_del_flow_rules(handler->rule);
|
|
ft_prio->refcount--;
|
|
kfree(handler);
|
|
handler = handler_dst;
|
|
} else {
|
|
list_add(&handler_dst->list, &handler->list);
|
|
}
|
|
}
|
|
|
|
return handler;
|
|
}
|
|
enum {
|
|
LEFTOVERS_MC,
|
|
LEFTOVERS_UC,
|
|
};
|
|
|
|
static struct mlx5_ib_flow_handler *create_leftovers_rule(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *ft_prio,
|
|
struct ib_flow_attr *flow_attr,
|
|
struct mlx5_flow_destination *dst)
|
|
{
|
|
struct mlx5_ib_flow_handler *handler_ucast = NULL;
|
|
struct mlx5_ib_flow_handler *handler = NULL;
|
|
|
|
static struct {
|
|
struct ib_flow_attr flow_attr;
|
|
struct ib_flow_spec_eth eth_flow;
|
|
} leftovers_specs[] = {
|
|
[LEFTOVERS_MC] = {
|
|
.flow_attr = {
|
|
.num_of_specs = 1,
|
|
.size = sizeof(leftovers_specs[0])
|
|
},
|
|
.eth_flow = {
|
|
.type = IB_FLOW_SPEC_ETH,
|
|
.size = sizeof(struct ib_flow_spec_eth),
|
|
.mask = {.dst_mac = {0x1} },
|
|
.val = {.dst_mac = {0x1} }
|
|
}
|
|
},
|
|
[LEFTOVERS_UC] = {
|
|
.flow_attr = {
|
|
.num_of_specs = 1,
|
|
.size = sizeof(leftovers_specs[0])
|
|
},
|
|
.eth_flow = {
|
|
.type = IB_FLOW_SPEC_ETH,
|
|
.size = sizeof(struct ib_flow_spec_eth),
|
|
.mask = {.dst_mac = {0x1} },
|
|
.val = {.dst_mac = {} }
|
|
}
|
|
}
|
|
};
|
|
|
|
handler = create_flow_rule(dev, ft_prio,
|
|
&leftovers_specs[LEFTOVERS_MC].flow_attr,
|
|
dst);
|
|
if (!IS_ERR(handler) &&
|
|
flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT) {
|
|
handler_ucast = create_flow_rule(dev, ft_prio,
|
|
&leftovers_specs[LEFTOVERS_UC].flow_attr,
|
|
dst);
|
|
if (IS_ERR(handler_ucast)) {
|
|
mlx5_del_flow_rules(handler->rule);
|
|
ft_prio->refcount--;
|
|
kfree(handler);
|
|
handler = handler_ucast;
|
|
} else {
|
|
list_add(&handler_ucast->list, &handler->list);
|
|
}
|
|
}
|
|
|
|
return handler;
|
|
}
|
|
|
|
static struct mlx5_ib_flow_handler *create_sniffer_rule(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *ft_rx,
|
|
struct mlx5_ib_flow_prio *ft_tx,
|
|
struct mlx5_flow_destination *dst)
|
|
{
|
|
struct mlx5_ib_flow_handler *handler_rx;
|
|
struct mlx5_ib_flow_handler *handler_tx;
|
|
int err;
|
|
static const struct ib_flow_attr flow_attr = {
|
|
.num_of_specs = 0,
|
|
.size = sizeof(flow_attr)
|
|
};
|
|
|
|
handler_rx = create_flow_rule(dev, ft_rx, &flow_attr, dst);
|
|
if (IS_ERR(handler_rx)) {
|
|
err = PTR_ERR(handler_rx);
|
|
goto err;
|
|
}
|
|
|
|
handler_tx = create_flow_rule(dev, ft_tx, &flow_attr, dst);
|
|
if (IS_ERR(handler_tx)) {
|
|
err = PTR_ERR(handler_tx);
|
|
goto err_tx;
|
|
}
|
|
|
|
list_add(&handler_tx->list, &handler_rx->list);
|
|
|
|
return handler_rx;
|
|
|
|
err_tx:
|
|
mlx5_del_flow_rules(handler_rx->rule);
|
|
ft_rx->refcount--;
|
|
kfree(handler_rx);
|
|
err:
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp,
|
|
struct ib_flow_attr *flow_attr,
|
|
int domain,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(qp->device);
|
|
struct mlx5_ib_qp *mqp = to_mqp(qp);
|
|
struct mlx5_ib_flow_handler *handler = NULL;
|
|
struct mlx5_flow_destination *dst = NULL;
|
|
struct mlx5_ib_flow_prio *ft_prio_tx = NULL;
|
|
struct mlx5_ib_flow_prio *ft_prio;
|
|
bool is_egress = flow_attr->flags & IB_FLOW_ATTR_FLAGS_EGRESS;
|
|
struct mlx5_ib_create_flow *ucmd = NULL, ucmd_hdr;
|
|
size_t min_ucmd_sz, required_ucmd_sz;
|
|
int err;
|
|
int underlay_qpn;
|
|
|
|
if (udata && udata->inlen) {
|
|
min_ucmd_sz = offsetof(typeof(ucmd_hdr), reserved) +
|
|
sizeof(ucmd_hdr.reserved);
|
|
if (udata->inlen < min_ucmd_sz)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
err = ib_copy_from_udata(&ucmd_hdr, udata, min_ucmd_sz);
|
|
if (err)
|
|
return ERR_PTR(err);
|
|
|
|
/* currently supports only one counters data */
|
|
if (ucmd_hdr.ncounters_data > 1)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
required_ucmd_sz = min_ucmd_sz +
|
|
sizeof(struct mlx5_ib_flow_counters_data) *
|
|
ucmd_hdr.ncounters_data;
|
|
if (udata->inlen > required_ucmd_sz &&
|
|
!ib_is_udata_cleared(udata, required_ucmd_sz,
|
|
udata->inlen - required_ucmd_sz))
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
ucmd = kzalloc(required_ucmd_sz, GFP_KERNEL);
|
|
if (!ucmd)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
err = ib_copy_from_udata(ucmd, udata, required_ucmd_sz);
|
|
if (err)
|
|
goto free_ucmd;
|
|
}
|
|
|
|
if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO) {
|
|
err = -ENOMEM;
|
|
goto free_ucmd;
|
|
}
|
|
|
|
if (domain != IB_FLOW_DOMAIN_USER ||
|
|
flow_attr->port > dev->num_ports ||
|
|
(flow_attr->flags & ~(IB_FLOW_ATTR_FLAGS_DONT_TRAP |
|
|
IB_FLOW_ATTR_FLAGS_EGRESS))) {
|
|
err = -EINVAL;
|
|
goto free_ucmd;
|
|
}
|
|
|
|
if (is_egress &&
|
|
(flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
|
|
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) {
|
|
err = -EINVAL;
|
|
goto free_ucmd;
|
|
}
|
|
|
|
dst = kzalloc(sizeof(*dst), GFP_KERNEL);
|
|
if (!dst) {
|
|
err = -ENOMEM;
|
|
goto free_ucmd;
|
|
}
|
|
|
|
mutex_lock(&dev->flow_db->lock);
|
|
|
|
ft_prio = get_flow_table(dev, flow_attr,
|
|
is_egress ? MLX5_IB_FT_TX : MLX5_IB_FT_RX);
|
|
if (IS_ERR(ft_prio)) {
|
|
err = PTR_ERR(ft_prio);
|
|
goto unlock;
|
|
}
|
|
if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) {
|
|
ft_prio_tx = get_flow_table(dev, flow_attr, MLX5_IB_FT_TX);
|
|
if (IS_ERR(ft_prio_tx)) {
|
|
err = PTR_ERR(ft_prio_tx);
|
|
ft_prio_tx = NULL;
|
|
goto destroy_ft;
|
|
}
|
|
}
|
|
|
|
if (is_egress) {
|
|
dst->type = MLX5_FLOW_DESTINATION_TYPE_PORT;
|
|
} else {
|
|
dst->type = MLX5_FLOW_DESTINATION_TYPE_TIR;
|
|
if (mqp->flags & MLX5_IB_QP_RSS)
|
|
dst->tir_num = mqp->rss_qp.tirn;
|
|
else
|
|
dst->tir_num = mqp->raw_packet_qp.rq.tirn;
|
|
}
|
|
|
|
if (flow_attr->type == IB_FLOW_ATTR_NORMAL) {
|
|
if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) {
|
|
handler = create_dont_trap_rule(dev, ft_prio,
|
|
flow_attr, dst);
|
|
} else {
|
|
underlay_qpn = (mqp->flags & MLX5_IB_QP_UNDERLAY) ?
|
|
mqp->underlay_qpn : 0;
|
|
handler = _create_flow_rule(dev, ft_prio, flow_attr,
|
|
dst, underlay_qpn, ucmd);
|
|
}
|
|
} else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
|
|
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) {
|
|
handler = create_leftovers_rule(dev, ft_prio, flow_attr,
|
|
dst);
|
|
} else if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) {
|
|
handler = create_sniffer_rule(dev, ft_prio, ft_prio_tx, dst);
|
|
} else {
|
|
err = -EINVAL;
|
|
goto destroy_ft;
|
|
}
|
|
|
|
if (IS_ERR(handler)) {
|
|
err = PTR_ERR(handler);
|
|
handler = NULL;
|
|
goto destroy_ft;
|
|
}
|
|
|
|
mutex_unlock(&dev->flow_db->lock);
|
|
kfree(dst);
|
|
kfree(ucmd);
|
|
|
|
return &handler->ibflow;
|
|
|
|
destroy_ft:
|
|
put_flow_table(dev, ft_prio, false);
|
|
if (ft_prio_tx)
|
|
put_flow_table(dev, ft_prio_tx, false);
|
|
unlock:
|
|
mutex_unlock(&dev->flow_db->lock);
|
|
kfree(dst);
|
|
free_ucmd:
|
|
kfree(ucmd);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static struct mlx5_ib_flow_prio *_get_flow_table(struct mlx5_ib_dev *dev,
|
|
int priority, bool mcast)
|
|
{
|
|
int max_table_size;
|
|
struct mlx5_flow_namespace *ns = NULL;
|
|
struct mlx5_ib_flow_prio *prio;
|
|
|
|
max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,
|
|
log_max_ft_size));
|
|
if (max_table_size < MLX5_FS_MAX_ENTRIES)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (mcast)
|
|
priority = MLX5_IB_FLOW_MCAST_PRIO;
|
|
else
|
|
priority = ib_prio_to_core_prio(priority, false);
|
|
|
|
ns = mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_BYPASS);
|
|
if (!ns)
|
|
return ERR_PTR(-ENOTSUPP);
|
|
|
|
prio = &dev->flow_db->prios[priority];
|
|
|
|
if (prio->flow_table)
|
|
return prio;
|
|
|
|
return _get_prio(ns, prio, priority, MLX5_FS_MAX_ENTRIES,
|
|
MLX5_FS_MAX_TYPES);
|
|
}
|
|
|
|
static struct mlx5_ib_flow_handler *
|
|
_create_raw_flow_rule(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_prio *ft_prio,
|
|
struct mlx5_flow_destination *dst,
|
|
struct mlx5_ib_flow_matcher *fs_matcher,
|
|
void *cmd_in, int inlen)
|
|
{
|
|
struct mlx5_ib_flow_handler *handler;
|
|
struct mlx5_flow_act flow_act = {.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG};
|
|
struct mlx5_flow_spec *spec;
|
|
struct mlx5_flow_table *ft = ft_prio->flow_table;
|
|
int err = 0;
|
|
|
|
spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
|
|
handler = kzalloc(sizeof(*handler), GFP_KERNEL);
|
|
if (!handler || !spec) {
|
|
err = -ENOMEM;
|
|
goto free;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&handler->list);
|
|
|
|
memcpy(spec->match_value, cmd_in, inlen);
|
|
memcpy(spec->match_criteria, fs_matcher->matcher_mask.match_params,
|
|
fs_matcher->mask_len);
|
|
spec->match_criteria_enable = fs_matcher->match_criteria_enable;
|
|
|
|
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
|
|
handler->rule = mlx5_add_flow_rules(ft, spec,
|
|
&flow_act, dst, 1);
|
|
|
|
if (IS_ERR(handler->rule)) {
|
|
err = PTR_ERR(handler->rule);
|
|
goto free;
|
|
}
|
|
|
|
ft_prio->refcount++;
|
|
handler->prio = ft_prio;
|
|
handler->dev = dev;
|
|
ft_prio->flow_table = ft;
|
|
|
|
free:
|
|
if (err)
|
|
kfree(handler);
|
|
kvfree(spec);
|
|
return err ? ERR_PTR(err) : handler;
|
|
}
|
|
|
|
static bool raw_fs_is_multicast(struct mlx5_ib_flow_matcher *fs_matcher,
|
|
void *match_v)
|
|
{
|
|
void *match_c;
|
|
void *match_v_set_lyr_2_4, *match_c_set_lyr_2_4;
|
|
void *dmac, *dmac_mask;
|
|
void *ipv4, *ipv4_mask;
|
|
|
|
if (!(fs_matcher->match_criteria_enable &
|
|
(1 << MATCH_CRITERIA_ENABLE_OUTER_BIT)))
|
|
return false;
|
|
|
|
match_c = fs_matcher->matcher_mask.match_params;
|
|
match_v_set_lyr_2_4 = MLX5_ADDR_OF(fte_match_param, match_v,
|
|
outer_headers);
|
|
match_c_set_lyr_2_4 = MLX5_ADDR_OF(fte_match_param, match_c,
|
|
outer_headers);
|
|
|
|
dmac = MLX5_ADDR_OF(fte_match_set_lyr_2_4, match_v_set_lyr_2_4,
|
|
dmac_47_16);
|
|
dmac_mask = MLX5_ADDR_OF(fte_match_set_lyr_2_4, match_c_set_lyr_2_4,
|
|
dmac_47_16);
|
|
|
|
if (is_multicast_ether_addr(dmac) &&
|
|
is_multicast_ether_addr(dmac_mask))
|
|
return true;
|
|
|
|
ipv4 = MLX5_ADDR_OF(fte_match_set_lyr_2_4, match_v_set_lyr_2_4,
|
|
dst_ipv4_dst_ipv6.ipv4_layout.ipv4);
|
|
|
|
ipv4_mask = MLX5_ADDR_OF(fte_match_set_lyr_2_4, match_c_set_lyr_2_4,
|
|
dst_ipv4_dst_ipv6.ipv4_layout.ipv4);
|
|
|
|
if (ipv4_is_multicast(*(__be32 *)(ipv4)) &&
|
|
ipv4_is_multicast(*(__be32 *)(ipv4_mask)))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
struct mlx5_ib_flow_handler *
|
|
mlx5_ib_raw_fs_rule_add(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_flow_matcher *fs_matcher,
|
|
void *cmd_in, int inlen, int dest_id,
|
|
int dest_type)
|
|
{
|
|
struct mlx5_flow_destination *dst;
|
|
struct mlx5_ib_flow_prio *ft_prio;
|
|
int priority = fs_matcher->priority;
|
|
struct mlx5_ib_flow_handler *handler;
|
|
bool mcast;
|
|
int err;
|
|
|
|
if (fs_matcher->flow_type != MLX5_IB_FLOW_TYPE_NORMAL)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
if (fs_matcher->priority > MLX5_IB_FLOW_LAST_PRIO)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
dst = kzalloc(sizeof(*dst), GFP_KERNEL);
|
|
if (!dst)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
mcast = raw_fs_is_multicast(fs_matcher, cmd_in);
|
|
mutex_lock(&dev->flow_db->lock);
|
|
|
|
ft_prio = _get_flow_table(dev, priority, mcast);
|
|
if (IS_ERR(ft_prio)) {
|
|
err = PTR_ERR(ft_prio);
|
|
goto unlock;
|
|
}
|
|
|
|
if (dest_type == MLX5_FLOW_DESTINATION_TYPE_TIR) {
|
|
dst->type = dest_type;
|
|
dst->tir_num = dest_id;
|
|
} else {
|
|
dst->type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM;
|
|
dst->ft_num = dest_id;
|
|
}
|
|
|
|
handler = _create_raw_flow_rule(dev, ft_prio, dst, fs_matcher, cmd_in,
|
|
inlen);
|
|
|
|
if (IS_ERR(handler)) {
|
|
err = PTR_ERR(handler);
|
|
goto destroy_ft;
|
|
}
|
|
|
|
mutex_unlock(&dev->flow_db->lock);
|
|
atomic_inc(&fs_matcher->usecnt);
|
|
handler->flow_matcher = fs_matcher;
|
|
|
|
kfree(dst);
|
|
|
|
return handler;
|
|
|
|
destroy_ft:
|
|
put_flow_table(dev, ft_prio, false);
|
|
unlock:
|
|
mutex_unlock(&dev->flow_db->lock);
|
|
kfree(dst);
|
|
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static u32 mlx5_ib_flow_action_flags_to_accel_xfrm_flags(u32 mlx5_flags)
|
|
{
|
|
u32 flags = 0;
|
|
|
|
if (mlx5_flags & MLX5_IB_UAPI_FLOW_ACTION_FLAGS_REQUIRE_METADATA)
|
|
flags |= MLX5_ACCEL_XFRM_FLAG_REQUIRE_METADATA;
|
|
|
|
return flags;
|
|
}
|
|
|
|
#define MLX5_FLOW_ACTION_ESP_CREATE_LAST_SUPPORTED MLX5_IB_UAPI_FLOW_ACTION_FLAGS_REQUIRE_METADATA
|
|
static struct ib_flow_action *
|
|
mlx5_ib_create_flow_action_esp(struct ib_device *device,
|
|
const struct ib_flow_action_attrs_esp *attr,
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_dev *mdev = to_mdev(device);
|
|
struct ib_uverbs_flow_action_esp_keymat_aes_gcm *aes_gcm;
|
|
struct mlx5_accel_esp_xfrm_attrs accel_attrs = {};
|
|
struct mlx5_ib_flow_action *action;
|
|
u64 action_flags;
|
|
u64 flags;
|
|
int err = 0;
|
|
|
|
err = uverbs_get_flags64(
|
|
&action_flags, attrs, MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS,
|
|
((MLX5_FLOW_ACTION_ESP_CREATE_LAST_SUPPORTED << 1) - 1));
|
|
if (err)
|
|
return ERR_PTR(err);
|
|
|
|
flags = mlx5_ib_flow_action_flags_to_accel_xfrm_flags(action_flags);
|
|
|
|
/* We current only support a subset of the standard features. Only a
|
|
* keymat of type AES_GCM, with icv_len == 16, iv_algo == SEQ and esn
|
|
* (with overlap). Full offload mode isn't supported.
|
|
*/
|
|
if (!attr->keymat || attr->replay || attr->encap ||
|
|
attr->spi || attr->seq || attr->tfc_pad ||
|
|
attr->hard_limit_pkts ||
|
|
(attr->flags & ~(IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED |
|
|
IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ENCRYPT)))
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
if (attr->keymat->protocol !=
|
|
IB_UVERBS_FLOW_ACTION_ESP_KEYMAT_AES_GCM)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
aes_gcm = &attr->keymat->keymat.aes_gcm;
|
|
|
|
if (aes_gcm->icv_len != 16 ||
|
|
aes_gcm->iv_algo != IB_UVERBS_FLOW_ACTION_IV_ALGO_SEQ)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
action = kmalloc(sizeof(*action), GFP_KERNEL);
|
|
if (!action)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
action->esp_aes_gcm.ib_flags = attr->flags;
|
|
memcpy(&accel_attrs.keymat.aes_gcm.aes_key, &aes_gcm->aes_key,
|
|
sizeof(accel_attrs.keymat.aes_gcm.aes_key));
|
|
accel_attrs.keymat.aes_gcm.key_len = aes_gcm->key_len * 8;
|
|
memcpy(&accel_attrs.keymat.aes_gcm.salt, &aes_gcm->salt,
|
|
sizeof(accel_attrs.keymat.aes_gcm.salt));
|
|
memcpy(&accel_attrs.keymat.aes_gcm.seq_iv, &aes_gcm->iv,
|
|
sizeof(accel_attrs.keymat.aes_gcm.seq_iv));
|
|
accel_attrs.keymat.aes_gcm.icv_len = aes_gcm->icv_len * 8;
|
|
accel_attrs.keymat.aes_gcm.iv_algo = MLX5_ACCEL_ESP_AES_GCM_IV_ALGO_SEQ;
|
|
accel_attrs.keymat_type = MLX5_ACCEL_ESP_KEYMAT_AES_GCM;
|
|
|
|
accel_attrs.esn = attr->esn;
|
|
if (attr->flags & IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED)
|
|
accel_attrs.flags |= MLX5_ACCEL_ESP_FLAGS_ESN_TRIGGERED;
|
|
if (attr->flags & IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW)
|
|
accel_attrs.flags |= MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP;
|
|
|
|
if (attr->flags & IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ENCRYPT)
|
|
accel_attrs.action |= MLX5_ACCEL_ESP_ACTION_ENCRYPT;
|
|
|
|
action->esp_aes_gcm.ctx =
|
|
mlx5_accel_esp_create_xfrm(mdev->mdev, &accel_attrs, flags);
|
|
if (IS_ERR(action->esp_aes_gcm.ctx)) {
|
|
err = PTR_ERR(action->esp_aes_gcm.ctx);
|
|
goto err_parse;
|
|
}
|
|
|
|
action->esp_aes_gcm.ib_flags = attr->flags;
|
|
|
|
return &action->ib_action;
|
|
|
|
err_parse:
|
|
kfree(action);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int
|
|
mlx5_ib_modify_flow_action_esp(struct ib_flow_action *action,
|
|
const struct ib_flow_action_attrs_esp *attr,
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_flow_action *maction = to_mflow_act(action);
|
|
struct mlx5_accel_esp_xfrm_attrs accel_attrs;
|
|
int err = 0;
|
|
|
|
if (attr->keymat || attr->replay || attr->encap ||
|
|
attr->spi || attr->seq || attr->tfc_pad ||
|
|
attr->hard_limit_pkts ||
|
|
(attr->flags & ~(IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED |
|
|
IB_FLOW_ACTION_ESP_FLAGS_MOD_ESP_ATTRS |
|
|
IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW)))
|
|
return -EOPNOTSUPP;
|
|
|
|
/* Only the ESN value or the MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP can
|
|
* be modified.
|
|
*/
|
|
if (!(maction->esp_aes_gcm.ib_flags &
|
|
IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED) &&
|
|
attr->flags & (IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED |
|
|
IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW))
|
|
return -EINVAL;
|
|
|
|
memcpy(&accel_attrs, &maction->esp_aes_gcm.ctx->attrs,
|
|
sizeof(accel_attrs));
|
|
|
|
accel_attrs.esn = attr->esn;
|
|
if (attr->flags & IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW)
|
|
accel_attrs.flags |= MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP;
|
|
else
|
|
accel_attrs.flags &= ~MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP;
|
|
|
|
err = mlx5_accel_esp_modify_xfrm(maction->esp_aes_gcm.ctx,
|
|
&accel_attrs);
|
|
if (err)
|
|
return err;
|
|
|
|
maction->esp_aes_gcm.ib_flags &=
|
|
~IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW;
|
|
maction->esp_aes_gcm.ib_flags |=
|
|
attr->flags & IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_ib_destroy_flow_action(struct ib_flow_action *action)
|
|
{
|
|
struct mlx5_ib_flow_action *maction = to_mflow_act(action);
|
|
|
|
switch (action->type) {
|
|
case IB_FLOW_ACTION_ESP:
|
|
/*
|
|
* We only support aes_gcm by now, so we implicitly know this is
|
|
* the underline crypto.
|
|
*/
|
|
mlx5_accel_esp_destroy_xfrm(maction->esp_aes_gcm.ctx);
|
|
break;
|
|
default:
|
|
WARN_ON(true);
|
|
break;
|
|
}
|
|
|
|
kfree(maction);
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
|
|
struct mlx5_ib_qp *mqp = to_mqp(ibqp);
|
|
int err;
|
|
|
|
if (mqp->flags & MLX5_IB_QP_UNDERLAY) {
|
|
mlx5_ib_dbg(dev, "Attaching a multi cast group to underlay QP is not supported\n");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num);
|
|
if (err)
|
|
mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n",
|
|
ibqp->qp_num, gid->raw);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
|
|
int err;
|
|
|
|
err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num);
|
|
if (err)
|
|
mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n",
|
|
ibqp->qp_num, gid->raw);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int init_node_data(struct mlx5_ib_dev *dev)
|
|
{
|
|
int err;
|
|
|
|
err = mlx5_query_node_desc(dev, dev->ib_dev.node_desc);
|
|
if (err)
|
|
return err;
|
|
|
|
dev->mdev->rev_id = dev->mdev->pdev->revision;
|
|
|
|
return mlx5_query_node_guid(dev, &dev->ib_dev.node_guid);
|
|
}
|
|
|
|
static ssize_t show_fw_pages(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(device, struct mlx5_ib_dev, ib_dev.dev);
|
|
|
|
return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages);
|
|
}
|
|
|
|
static ssize_t show_reg_pages(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(device, struct mlx5_ib_dev, ib_dev.dev);
|
|
|
|
return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages));
|
|
}
|
|
|
|
static ssize_t show_hca(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(device, struct mlx5_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "MT%d\n", dev->mdev->pdev->device);
|
|
}
|
|
|
|
static ssize_t show_rev(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(device, struct mlx5_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "%x\n", dev->mdev->rev_id);
|
|
}
|
|
|
|
static ssize_t show_board(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(device, struct mlx5_ib_dev, ib_dev.dev);
|
|
return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN,
|
|
dev->mdev->board_id);
|
|
}
|
|
|
|
static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
|
|
static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
|
|
static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
|
|
static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL);
|
|
static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL);
|
|
|
|
static struct device_attribute *mlx5_class_attributes[] = {
|
|
&dev_attr_hw_rev,
|
|
&dev_attr_hca_type,
|
|
&dev_attr_board_id,
|
|
&dev_attr_fw_pages,
|
|
&dev_attr_reg_pages,
|
|
};
|
|
|
|
static void pkey_change_handler(struct work_struct *work)
|
|
{
|
|
struct mlx5_ib_port_resources *ports =
|
|
container_of(work, struct mlx5_ib_port_resources,
|
|
pkey_change_work);
|
|
|
|
mutex_lock(&ports->devr->mutex);
|
|
mlx5_ib_gsi_pkey_change(ports->gsi);
|
|
mutex_unlock(&ports->devr->mutex);
|
|
}
|
|
|
|
static void mlx5_ib_handle_internal_error(struct mlx5_ib_dev *ibdev)
|
|
{
|
|
struct mlx5_ib_qp *mqp;
|
|
struct mlx5_ib_cq *send_mcq, *recv_mcq;
|
|
struct mlx5_core_cq *mcq;
|
|
struct list_head cq_armed_list;
|
|
unsigned long flags_qp;
|
|
unsigned long flags_cq;
|
|
unsigned long flags;
|
|
|
|
INIT_LIST_HEAD(&cq_armed_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_armed_list);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&send_mcq->lock, flags_cq);
|
|
}
|
|
spin_unlock_irqrestore(&mqp->sq.lock, flags_qp);
|
|
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_armed_list);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&recv_mcq->lock,
|
|
flags_cq);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&mqp->rq.lock, flags_qp);
|
|
}
|
|
/*At that point all inflight post send were put to be executed as of we
|
|
* lock/unlock above locks Now need to arm all involved CQs.
|
|
*/
|
|
list_for_each_entry(mcq, &cq_armed_list, reset_notify) {
|
|
mcq->comp(mcq);
|
|
}
|
|
spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags);
|
|
}
|
|
|
|
static void delay_drop_handler(struct work_struct *work)
|
|
{
|
|
int err;
|
|
struct mlx5_ib_delay_drop *delay_drop =
|
|
container_of(work, struct mlx5_ib_delay_drop,
|
|
delay_drop_work);
|
|
|
|
atomic_inc(&delay_drop->events_cnt);
|
|
|
|
mutex_lock(&delay_drop->lock);
|
|
err = mlx5_core_set_delay_drop(delay_drop->dev->mdev,
|
|
delay_drop->timeout);
|
|
if (err) {
|
|
mlx5_ib_warn(delay_drop->dev, "Failed to set delay drop, timeout=%u\n",
|
|
delay_drop->timeout);
|
|
delay_drop->activate = false;
|
|
}
|
|
mutex_unlock(&delay_drop->lock);
|
|
}
|
|
|
|
static void mlx5_ib_handle_event(struct work_struct *_work)
|
|
{
|
|
struct mlx5_ib_event_work *work =
|
|
container_of(_work, struct mlx5_ib_event_work, work);
|
|
struct mlx5_ib_dev *ibdev;
|
|
struct ib_event ibev;
|
|
bool fatal = false;
|
|
u8 port = (u8)work->param;
|
|
|
|
if (mlx5_core_is_mp_slave(work->dev)) {
|
|
ibdev = mlx5_ib_get_ibdev_from_mpi(work->context);
|
|
if (!ibdev)
|
|
goto out;
|
|
} else {
|
|
ibdev = work->context;
|
|
}
|
|
|
|
switch (work->event) {
|
|
case MLX5_DEV_EVENT_SYS_ERROR:
|
|
ibev.event = IB_EVENT_DEVICE_FATAL;
|
|
mlx5_ib_handle_internal_error(ibdev);
|
|
fatal = true;
|
|
break;
|
|
|
|
case MLX5_DEV_EVENT_PORT_UP:
|
|
case MLX5_DEV_EVENT_PORT_DOWN:
|
|
case MLX5_DEV_EVENT_PORT_INITIALIZED:
|
|
/* In RoCE, port up/down events are handled in
|
|
* mlx5_netdev_event().
|
|
*/
|
|
if (mlx5_ib_port_link_layer(&ibdev->ib_dev, port) ==
|
|
IB_LINK_LAYER_ETHERNET)
|
|
goto out;
|
|
|
|
ibev.event = (work->event == MLX5_DEV_EVENT_PORT_UP) ?
|
|
IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
|
|
break;
|
|
|
|
case MLX5_DEV_EVENT_LID_CHANGE:
|
|
ibev.event = IB_EVENT_LID_CHANGE;
|
|
break;
|
|
|
|
case MLX5_DEV_EVENT_PKEY_CHANGE:
|
|
ibev.event = IB_EVENT_PKEY_CHANGE;
|
|
schedule_work(&ibdev->devr.ports[port - 1].pkey_change_work);
|
|
break;
|
|
|
|
case MLX5_DEV_EVENT_GUID_CHANGE:
|
|
ibev.event = IB_EVENT_GID_CHANGE;
|
|
break;
|
|
|
|
case MLX5_DEV_EVENT_CLIENT_REREG:
|
|
ibev.event = IB_EVENT_CLIENT_REREGISTER;
|
|
break;
|
|
case MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT:
|
|
schedule_work(&ibdev->delay_drop.delay_drop_work);
|
|
goto out;
|
|
default:
|
|
goto out;
|
|
}
|
|
|
|
ibev.device = &ibdev->ib_dev;
|
|
ibev.element.port_num = port;
|
|
|
|
if (!rdma_is_port_valid(&ibdev->ib_dev, port)) {
|
|
mlx5_ib_warn(ibdev, "warning: event on port %d\n", port);
|
|
goto out;
|
|
}
|
|
|
|
if (ibdev->ib_active)
|
|
ib_dispatch_event(&ibev);
|
|
|
|
if (fatal)
|
|
ibdev->ib_active = false;
|
|
out:
|
|
kfree(work);
|
|
}
|
|
|
|
static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context,
|
|
enum mlx5_dev_event event, unsigned long param)
|
|
{
|
|
struct mlx5_ib_event_work *work;
|
|
|
|
work = kmalloc(sizeof(*work), GFP_ATOMIC);
|
|
if (!work)
|
|
return;
|
|
|
|
INIT_WORK(&work->work, mlx5_ib_handle_event);
|
|
work->dev = dev;
|
|
work->param = param;
|
|
work->context = context;
|
|
work->event = event;
|
|
|
|
queue_work(mlx5_ib_event_wq, &work->work);
|
|
}
|
|
|
|
static int set_has_smi_cap(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_hca_vport_context vport_ctx;
|
|
int err;
|
|
int port;
|
|
|
|
for (port = 1; port <= dev->num_ports; port++) {
|
|
dev->mdev->port_caps[port - 1].has_smi = false;
|
|
if (MLX5_CAP_GEN(dev->mdev, port_type) ==
|
|
MLX5_CAP_PORT_TYPE_IB) {
|
|
if (MLX5_CAP_GEN(dev->mdev, ib_virt)) {
|
|
err = mlx5_query_hca_vport_context(dev->mdev, 0,
|
|
port, 0,
|
|
&vport_ctx);
|
|
if (err) {
|
|
mlx5_ib_err(dev, "query_hca_vport_context for port=%d failed %d\n",
|
|
port, err);
|
|
return err;
|
|
}
|
|
dev->mdev->port_caps[port - 1].has_smi =
|
|
vport_ctx.has_smi;
|
|
} else {
|
|
dev->mdev->port_caps[port - 1].has_smi = true;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void get_ext_port_caps(struct mlx5_ib_dev *dev)
|
|
{
|
|
int port;
|
|
|
|
for (port = 1; port <= dev->num_ports; port++)
|
|
mlx5_query_ext_port_caps(dev, port);
|
|
}
|
|
|
|
static int get_port_caps(struct mlx5_ib_dev *dev, u8 port)
|
|
{
|
|
struct ib_device_attr *dprops = NULL;
|
|
struct ib_port_attr *pprops = NULL;
|
|
int err = -ENOMEM;
|
|
struct ib_udata uhw = {.inlen = 0, .outlen = 0};
|
|
|
|
pprops = kmalloc(sizeof(*pprops), GFP_KERNEL);
|
|
if (!pprops)
|
|
goto out;
|
|
|
|
dprops = kmalloc(sizeof(*dprops), GFP_KERNEL);
|
|
if (!dprops)
|
|
goto out;
|
|
|
|
err = set_has_smi_cap(dev);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = mlx5_ib_query_device(&dev->ib_dev, dprops, &uhw);
|
|
if (err) {
|
|
mlx5_ib_warn(dev, "query_device failed %d\n", err);
|
|
goto out;
|
|
}
|
|
|
|
memset(pprops, 0, sizeof(*pprops));
|
|
err = mlx5_ib_query_port(&dev->ib_dev, port, pprops);
|
|
if (err) {
|
|
mlx5_ib_warn(dev, "query_port %d failed %d\n",
|
|
port, err);
|
|
goto out;
|
|
}
|
|
|
|
dev->mdev->port_caps[port - 1].pkey_table_len =
|
|
dprops->max_pkeys;
|
|
dev->mdev->port_caps[port - 1].gid_table_len =
|
|
pprops->gid_tbl_len;
|
|
mlx5_ib_dbg(dev, "port %d: pkey_table_len %d, gid_table_len %d\n",
|
|
port, dprops->max_pkeys, pprops->gid_tbl_len);
|
|
|
|
out:
|
|
kfree(pprops);
|
|
kfree(dprops);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void destroy_umrc_res(struct mlx5_ib_dev *dev)
|
|
{
|
|
int err;
|
|
|
|
err = mlx5_mr_cache_cleanup(dev);
|
|
if (err)
|
|
mlx5_ib_warn(dev, "mr cache cleanup failed\n");
|
|
|
|
if (dev->umrc.qp)
|
|
mlx5_ib_destroy_qp(dev->umrc.qp);
|
|
if (dev->umrc.cq)
|
|
ib_free_cq(dev->umrc.cq);
|
|
if (dev->umrc.pd)
|
|
ib_dealloc_pd(dev->umrc.pd);
|
|
}
|
|
|
|
enum {
|
|
MAX_UMR_WR = 128,
|
|
};
|
|
|
|
static int create_umr_res(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct ib_qp_init_attr *init_attr = NULL;
|
|
struct ib_qp_attr *attr = NULL;
|
|
struct ib_pd *pd;
|
|
struct ib_cq *cq;
|
|
struct ib_qp *qp;
|
|
int ret;
|
|
|
|
attr = kzalloc(sizeof(*attr), GFP_KERNEL);
|
|
init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL);
|
|
if (!attr || !init_attr) {
|
|
ret = -ENOMEM;
|
|
goto error_0;
|
|
}
|
|
|
|
pd = ib_alloc_pd(&dev->ib_dev, 0);
|
|
if (IS_ERR(pd)) {
|
|
mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n");
|
|
ret = PTR_ERR(pd);
|
|
goto error_0;
|
|
}
|
|
|
|
cq = ib_alloc_cq(&dev->ib_dev, NULL, 128, 0, IB_POLL_SOFTIRQ);
|
|
if (IS_ERR(cq)) {
|
|
mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n");
|
|
ret = PTR_ERR(cq);
|
|
goto error_2;
|
|
}
|
|
|
|
init_attr->send_cq = cq;
|
|
init_attr->recv_cq = cq;
|
|
init_attr->sq_sig_type = IB_SIGNAL_ALL_WR;
|
|
init_attr->cap.max_send_wr = MAX_UMR_WR;
|
|
init_attr->cap.max_send_sge = 1;
|
|
init_attr->qp_type = MLX5_IB_QPT_REG_UMR;
|
|
init_attr->port_num = 1;
|
|
qp = mlx5_ib_create_qp(pd, init_attr, NULL);
|
|
if (IS_ERR(qp)) {
|
|
mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n");
|
|
ret = PTR_ERR(qp);
|
|
goto error_3;
|
|
}
|
|
qp->device = &dev->ib_dev;
|
|
qp->real_qp = qp;
|
|
qp->uobject = NULL;
|
|
qp->qp_type = MLX5_IB_QPT_REG_UMR;
|
|
qp->send_cq = init_attr->send_cq;
|
|
qp->recv_cq = init_attr->recv_cq;
|
|
|
|
attr->qp_state = IB_QPS_INIT;
|
|
attr->port_num = 1;
|
|
ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX |
|
|
IB_QP_PORT, NULL);
|
|
if (ret) {
|
|
mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n");
|
|
goto error_4;
|
|
}
|
|
|
|
memset(attr, 0, sizeof(*attr));
|
|
attr->qp_state = IB_QPS_RTR;
|
|
attr->path_mtu = IB_MTU_256;
|
|
|
|
ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL);
|
|
if (ret) {
|
|
mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n");
|
|
goto error_4;
|
|
}
|
|
|
|
memset(attr, 0, sizeof(*attr));
|
|
attr->qp_state = IB_QPS_RTS;
|
|
ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL);
|
|
if (ret) {
|
|
mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n");
|
|
goto error_4;
|
|
}
|
|
|
|
dev->umrc.qp = qp;
|
|
dev->umrc.cq = cq;
|
|
dev->umrc.pd = pd;
|
|
|
|
sema_init(&dev->umrc.sem, MAX_UMR_WR);
|
|
ret = mlx5_mr_cache_init(dev);
|
|
if (ret) {
|
|
mlx5_ib_warn(dev, "mr cache init failed %d\n", ret);
|
|
goto error_4;
|
|
}
|
|
|
|
kfree(attr);
|
|
kfree(init_attr);
|
|
|
|
return 0;
|
|
|
|
error_4:
|
|
mlx5_ib_destroy_qp(qp);
|
|
dev->umrc.qp = NULL;
|
|
|
|
error_3:
|
|
ib_free_cq(cq);
|
|
dev->umrc.cq = NULL;
|
|
|
|
error_2:
|
|
ib_dealloc_pd(pd);
|
|
dev->umrc.pd = NULL;
|
|
|
|
error_0:
|
|
kfree(attr);
|
|
kfree(init_attr);
|
|
return ret;
|
|
}
|
|
|
|
static u8 mlx5_get_umr_fence(u8 umr_fence_cap)
|
|
{
|
|
switch (umr_fence_cap) {
|
|
case MLX5_CAP_UMR_FENCE_NONE:
|
|
return MLX5_FENCE_MODE_NONE;
|
|
case MLX5_CAP_UMR_FENCE_SMALL:
|
|
return MLX5_FENCE_MODE_INITIATOR_SMALL;
|
|
default:
|
|
return MLX5_FENCE_MODE_STRONG_ORDERING;
|
|
}
|
|
}
|
|
|
|
static int create_dev_resources(struct mlx5_ib_resources *devr)
|
|
{
|
|
struct ib_srq_init_attr attr;
|
|
struct mlx5_ib_dev *dev;
|
|
struct ib_cq_init_attr cq_attr = {.cqe = 1};
|
|
int port;
|
|
int ret = 0;
|
|
|
|
dev = container_of(devr, struct mlx5_ib_dev, devr);
|
|
|
|
mutex_init(&devr->mutex);
|
|
|
|
devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL);
|
|
if (IS_ERR(devr->p0)) {
|
|
ret = PTR_ERR(devr->p0);
|
|
goto error0;
|
|
}
|
|
devr->p0->device = &dev->ib_dev;
|
|
devr->p0->uobject = NULL;
|
|
atomic_set(&devr->p0->usecnt, 0);
|
|
|
|
devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, &cq_attr, NULL, NULL);
|
|
if (IS_ERR(devr->c0)) {
|
|
ret = PTR_ERR(devr->c0);
|
|
goto error1;
|
|
}
|
|
devr->c0->device = &dev->ib_dev;
|
|
devr->c0->uobject = NULL;
|
|
devr->c0->comp_handler = NULL;
|
|
devr->c0->event_handler = NULL;
|
|
devr->c0->cq_context = NULL;
|
|
atomic_set(&devr->c0->usecnt, 0);
|
|
|
|
devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL);
|
|
if (IS_ERR(devr->x0)) {
|
|
ret = PTR_ERR(devr->x0);
|
|
goto error2;
|
|
}
|
|
devr->x0->device = &dev->ib_dev;
|
|
devr->x0->inode = NULL;
|
|
atomic_set(&devr->x0->usecnt, 0);
|
|
mutex_init(&devr->x0->tgt_qp_mutex);
|
|
INIT_LIST_HEAD(&devr->x0->tgt_qp_list);
|
|
|
|
devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL);
|
|
if (IS_ERR(devr->x1)) {
|
|
ret = PTR_ERR(devr->x1);
|
|
goto error3;
|
|
}
|
|
devr->x1->device = &dev->ib_dev;
|
|
devr->x1->inode = NULL;
|
|
atomic_set(&devr->x1->usecnt, 0);
|
|
mutex_init(&devr->x1->tgt_qp_mutex);
|
|
INIT_LIST_HEAD(&devr->x1->tgt_qp_list);
|
|
|
|
memset(&attr, 0, sizeof(attr));
|
|
attr.attr.max_sge = 1;
|
|
attr.attr.max_wr = 1;
|
|
attr.srq_type = IB_SRQT_XRC;
|
|
attr.ext.cq = devr->c0;
|
|
attr.ext.xrc.xrcd = devr->x0;
|
|
|
|
devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL);
|
|
if (IS_ERR(devr->s0)) {
|
|
ret = PTR_ERR(devr->s0);
|
|
goto error4;
|
|
}
|
|
devr->s0->device = &dev->ib_dev;
|
|
devr->s0->pd = devr->p0;
|
|
devr->s0->uobject = NULL;
|
|
devr->s0->event_handler = NULL;
|
|
devr->s0->srq_context = NULL;
|
|
devr->s0->srq_type = IB_SRQT_XRC;
|
|
devr->s0->ext.xrc.xrcd = devr->x0;
|
|
devr->s0->ext.cq = devr->c0;
|
|
atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt);
|
|
atomic_inc(&devr->s0->ext.cq->usecnt);
|
|
atomic_inc(&devr->p0->usecnt);
|
|
atomic_set(&devr->s0->usecnt, 0);
|
|
|
|
memset(&attr, 0, sizeof(attr));
|
|
attr.attr.max_sge = 1;
|
|
attr.attr.max_wr = 1;
|
|
attr.srq_type = IB_SRQT_BASIC;
|
|
devr->s1 = mlx5_ib_create_srq(devr->p0, &attr, NULL);
|
|
if (IS_ERR(devr->s1)) {
|
|
ret = PTR_ERR(devr->s1);
|
|
goto error5;
|
|
}
|
|
devr->s1->device = &dev->ib_dev;
|
|
devr->s1->pd = devr->p0;
|
|
devr->s1->uobject = NULL;
|
|
devr->s1->event_handler = NULL;
|
|
devr->s1->srq_context = NULL;
|
|
devr->s1->srq_type = IB_SRQT_BASIC;
|
|
devr->s1->ext.cq = devr->c0;
|
|
atomic_inc(&devr->p0->usecnt);
|
|
atomic_set(&devr->s1->usecnt, 0);
|
|
|
|
for (port = 0; port < ARRAY_SIZE(devr->ports); ++port) {
|
|
INIT_WORK(&devr->ports[port].pkey_change_work,
|
|
pkey_change_handler);
|
|
devr->ports[port].devr = devr;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error5:
|
|
mlx5_ib_destroy_srq(devr->s0);
|
|
error4:
|
|
mlx5_ib_dealloc_xrcd(devr->x1);
|
|
error3:
|
|
mlx5_ib_dealloc_xrcd(devr->x0);
|
|
error2:
|
|
mlx5_ib_destroy_cq(devr->c0);
|
|
error1:
|
|
mlx5_ib_dealloc_pd(devr->p0);
|
|
error0:
|
|
return ret;
|
|
}
|
|
|
|
static void destroy_dev_resources(struct mlx5_ib_resources *devr)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(devr, struct mlx5_ib_dev, devr);
|
|
int port;
|
|
|
|
mlx5_ib_destroy_srq(devr->s1);
|
|
mlx5_ib_destroy_srq(devr->s0);
|
|
mlx5_ib_dealloc_xrcd(devr->x0);
|
|
mlx5_ib_dealloc_xrcd(devr->x1);
|
|
mlx5_ib_destroy_cq(devr->c0);
|
|
mlx5_ib_dealloc_pd(devr->p0);
|
|
|
|
/* Make sure no change P_Key work items are still executing */
|
|
for (port = 0; port < dev->num_ports; ++port)
|
|
cancel_work_sync(&devr->ports[port].pkey_change_work);
|
|
}
|
|
|
|
static u32 get_core_cap_flags(struct ib_device *ibdev,
|
|
struct mlx5_hca_vport_context *rep)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, 1);
|
|
u8 l3_type_cap = MLX5_CAP_ROCE(dev->mdev, l3_type);
|
|
u8 roce_version_cap = MLX5_CAP_ROCE(dev->mdev, roce_version);
|
|
bool raw_support = !mlx5_core_mp_enabled(dev->mdev);
|
|
u32 ret = 0;
|
|
|
|
if (rep->grh_required)
|
|
ret |= RDMA_CORE_CAP_IB_GRH_REQUIRED;
|
|
|
|
if (ll == IB_LINK_LAYER_INFINIBAND)
|
|
return ret | RDMA_CORE_PORT_IBA_IB;
|
|
|
|
if (raw_support)
|
|
ret |= RDMA_CORE_PORT_RAW_PACKET;
|
|
|
|
if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV4_CAP))
|
|
return ret;
|
|
|
|
if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV6_CAP))
|
|
return ret;
|
|
|
|
if (roce_version_cap & MLX5_ROCE_VERSION_1_CAP)
|
|
ret |= RDMA_CORE_PORT_IBA_ROCE;
|
|
|
|
if (roce_version_cap & MLX5_ROCE_VERSION_2_CAP)
|
|
ret |= RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num,
|
|
struct ib_port_immutable *immutable)
|
|
{
|
|
struct ib_port_attr attr;
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, port_num);
|
|
struct mlx5_hca_vport_context rep = {0};
|
|
int err;
|
|
|
|
err = ib_query_port(ibdev, port_num, &attr);
|
|
if (err)
|
|
return err;
|
|
|
|
if (ll == IB_LINK_LAYER_INFINIBAND) {
|
|
err = mlx5_query_hca_vport_context(dev->mdev, 0, port_num, 0,
|
|
&rep);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len;
|
|
immutable->gid_tbl_len = attr.gid_tbl_len;
|
|
immutable->core_cap_flags = get_core_cap_flags(ibdev, &rep);
|
|
if ((ll == IB_LINK_LAYER_INFINIBAND) || MLX5_CAP_GEN(dev->mdev, roce))
|
|
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_port_rep_immutable(struct ib_device *ibdev, u8 port_num,
|
|
struct ib_port_immutable *immutable)
|
|
{
|
|
struct ib_port_attr attr;
|
|
int err;
|
|
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_RAW_PACKET;
|
|
|
|
err = ib_query_port(ibdev, port_num, &attr);
|
|
if (err)
|
|
return err;
|
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len;
|
|
immutable->gid_tbl_len = attr.gid_tbl_len;
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_RAW_PACKET;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void get_dev_fw_str(struct ib_device *ibdev, char *str)
|
|
{
|
|
struct mlx5_ib_dev *dev =
|
|
container_of(ibdev, struct mlx5_ib_dev, ib_dev);
|
|
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%04d",
|
|
fw_rev_maj(dev->mdev), fw_rev_min(dev->mdev),
|
|
fw_rev_sub(dev->mdev));
|
|
}
|
|
|
|
static int mlx5_eth_lag_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
struct mlx5_flow_namespace *ns = mlx5_get_flow_namespace(mdev,
|
|
MLX5_FLOW_NAMESPACE_LAG);
|
|
struct mlx5_flow_table *ft;
|
|
int err;
|
|
|
|
if (!ns || !mlx5_lag_is_active(mdev))
|
|
return 0;
|
|
|
|
err = mlx5_cmd_create_vport_lag(mdev);
|
|
if (err)
|
|
return err;
|
|
|
|
ft = mlx5_create_lag_demux_flow_table(ns, 0, 0);
|
|
if (IS_ERR(ft)) {
|
|
err = PTR_ERR(ft);
|
|
goto err_destroy_vport_lag;
|
|
}
|
|
|
|
dev->flow_db->lag_demux_ft = ft;
|
|
return 0;
|
|
|
|
err_destroy_vport_lag:
|
|
mlx5_cmd_destroy_vport_lag(mdev);
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_eth_lag_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
|
|
if (dev->flow_db->lag_demux_ft) {
|
|
mlx5_destroy_flow_table(dev->flow_db->lag_demux_ft);
|
|
dev->flow_db->lag_demux_ft = NULL;
|
|
|
|
mlx5_cmd_destroy_vport_lag(mdev);
|
|
}
|
|
}
|
|
|
|
static int mlx5_add_netdev_notifier(struct mlx5_ib_dev *dev, u8 port_num)
|
|
{
|
|
int err;
|
|
|
|
dev->roce[port_num].nb.notifier_call = mlx5_netdev_event;
|
|
err = register_netdevice_notifier(&dev->roce[port_num].nb);
|
|
if (err) {
|
|
dev->roce[port_num].nb.notifier_call = NULL;
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx5_remove_netdev_notifier(struct mlx5_ib_dev *dev, u8 port_num)
|
|
{
|
|
if (dev->roce[port_num].nb.notifier_call) {
|
|
unregister_netdevice_notifier(&dev->roce[port_num].nb);
|
|
dev->roce[port_num].nb.notifier_call = NULL;
|
|
}
|
|
}
|
|
|
|
static int mlx5_enable_eth(struct mlx5_ib_dev *dev)
|
|
{
|
|
int err;
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, roce)) {
|
|
err = mlx5_nic_vport_enable_roce(dev->mdev);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
err = mlx5_eth_lag_init(dev);
|
|
if (err)
|
|
goto err_disable_roce;
|
|
|
|
return 0;
|
|
|
|
err_disable_roce:
|
|
if (MLX5_CAP_GEN(dev->mdev, roce))
|
|
mlx5_nic_vport_disable_roce(dev->mdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_disable_eth(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_eth_lag_cleanup(dev);
|
|
if (MLX5_CAP_GEN(dev->mdev, roce))
|
|
mlx5_nic_vport_disable_roce(dev->mdev);
|
|
}
|
|
|
|
struct mlx5_ib_counter {
|
|
const char *name;
|
|
size_t offset;
|
|
};
|
|
|
|
#define INIT_Q_COUNTER(_name) \
|
|
{ .name = #_name, .offset = MLX5_BYTE_OFF(query_q_counter_out, _name)}
|
|
|
|
static const struct mlx5_ib_counter basic_q_cnts[] = {
|
|
INIT_Q_COUNTER(rx_write_requests),
|
|
INIT_Q_COUNTER(rx_read_requests),
|
|
INIT_Q_COUNTER(rx_atomic_requests),
|
|
INIT_Q_COUNTER(out_of_buffer),
|
|
};
|
|
|
|
static const struct mlx5_ib_counter out_of_seq_q_cnts[] = {
|
|
INIT_Q_COUNTER(out_of_sequence),
|
|
};
|
|
|
|
static const struct mlx5_ib_counter retrans_q_cnts[] = {
|
|
INIT_Q_COUNTER(duplicate_request),
|
|
INIT_Q_COUNTER(rnr_nak_retry_err),
|
|
INIT_Q_COUNTER(packet_seq_err),
|
|
INIT_Q_COUNTER(implied_nak_seq_err),
|
|
INIT_Q_COUNTER(local_ack_timeout_err),
|
|
};
|
|
|
|
#define INIT_CONG_COUNTER(_name) \
|
|
{ .name = #_name, .offset = \
|
|
MLX5_BYTE_OFF(query_cong_statistics_out, _name ## _high)}
|
|
|
|
static const struct mlx5_ib_counter cong_cnts[] = {
|
|
INIT_CONG_COUNTER(rp_cnp_ignored),
|
|
INIT_CONG_COUNTER(rp_cnp_handled),
|
|
INIT_CONG_COUNTER(np_ecn_marked_roce_packets),
|
|
INIT_CONG_COUNTER(np_cnp_sent),
|
|
};
|
|
|
|
static const struct mlx5_ib_counter extended_err_cnts[] = {
|
|
INIT_Q_COUNTER(resp_local_length_error),
|
|
INIT_Q_COUNTER(resp_cqe_error),
|
|
INIT_Q_COUNTER(req_cqe_error),
|
|
INIT_Q_COUNTER(req_remote_invalid_request),
|
|
INIT_Q_COUNTER(req_remote_access_errors),
|
|
INIT_Q_COUNTER(resp_remote_access_errors),
|
|
INIT_Q_COUNTER(resp_cqe_flush_error),
|
|
INIT_Q_COUNTER(req_cqe_flush_error),
|
|
};
|
|
|
|
#define INIT_EXT_PPCNT_COUNTER(_name) \
|
|
{ .name = #_name, .offset = \
|
|
MLX5_BYTE_OFF(ppcnt_reg, \
|
|
counter_set.eth_extended_cntrs_grp_data_layout._name##_high)}
|
|
|
|
static const struct mlx5_ib_counter ext_ppcnt_cnts[] = {
|
|
INIT_EXT_PPCNT_COUNTER(rx_icrc_encapsulated),
|
|
};
|
|
|
|
static void mlx5_ib_dealloc_counters(struct mlx5_ib_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < dev->num_ports; i++) {
|
|
if (dev->port[i].cnts.set_id_valid)
|
|
mlx5_core_dealloc_q_counter(dev->mdev,
|
|
dev->port[i].cnts.set_id);
|
|
kfree(dev->port[i].cnts.names);
|
|
kfree(dev->port[i].cnts.offsets);
|
|
}
|
|
}
|
|
|
|
static int __mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_counters *cnts)
|
|
{
|
|
u32 num_counters;
|
|
|
|
num_counters = ARRAY_SIZE(basic_q_cnts);
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, out_of_seq_cnt))
|
|
num_counters += ARRAY_SIZE(out_of_seq_q_cnts);
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, retransmission_q_counters))
|
|
num_counters += ARRAY_SIZE(retrans_q_cnts);
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, enhanced_error_q_counters))
|
|
num_counters += ARRAY_SIZE(extended_err_cnts);
|
|
|
|
cnts->num_q_counters = num_counters;
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
|
|
cnts->num_cong_counters = ARRAY_SIZE(cong_cnts);
|
|
num_counters += ARRAY_SIZE(cong_cnts);
|
|
}
|
|
if (MLX5_CAP_PCAM_FEATURE(dev->mdev, rx_icrc_encapsulated_counter)) {
|
|
cnts->num_ext_ppcnt_counters = ARRAY_SIZE(ext_ppcnt_cnts);
|
|
num_counters += ARRAY_SIZE(ext_ppcnt_cnts);
|
|
}
|
|
cnts->names = kcalloc(num_counters, sizeof(cnts->names), GFP_KERNEL);
|
|
if (!cnts->names)
|
|
return -ENOMEM;
|
|
|
|
cnts->offsets = kcalloc(num_counters,
|
|
sizeof(cnts->offsets), GFP_KERNEL);
|
|
if (!cnts->offsets)
|
|
goto err_names;
|
|
|
|
return 0;
|
|
|
|
err_names:
|
|
kfree(cnts->names);
|
|
cnts->names = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void mlx5_ib_fill_counters(struct mlx5_ib_dev *dev,
|
|
const char **names,
|
|
size_t *offsets)
|
|
{
|
|
int i;
|
|
int j = 0;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(basic_q_cnts); i++, j++) {
|
|
names[j] = basic_q_cnts[i].name;
|
|
offsets[j] = basic_q_cnts[i].offset;
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, out_of_seq_cnt)) {
|
|
for (i = 0; i < ARRAY_SIZE(out_of_seq_q_cnts); i++, j++) {
|
|
names[j] = out_of_seq_q_cnts[i].name;
|
|
offsets[j] = out_of_seq_q_cnts[i].offset;
|
|
}
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, retransmission_q_counters)) {
|
|
for (i = 0; i < ARRAY_SIZE(retrans_q_cnts); i++, j++) {
|
|
names[j] = retrans_q_cnts[i].name;
|
|
offsets[j] = retrans_q_cnts[i].offset;
|
|
}
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, enhanced_error_q_counters)) {
|
|
for (i = 0; i < ARRAY_SIZE(extended_err_cnts); i++, j++) {
|
|
names[j] = extended_err_cnts[i].name;
|
|
offsets[j] = extended_err_cnts[i].offset;
|
|
}
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
|
|
for (i = 0; i < ARRAY_SIZE(cong_cnts); i++, j++) {
|
|
names[j] = cong_cnts[i].name;
|
|
offsets[j] = cong_cnts[i].offset;
|
|
}
|
|
}
|
|
|
|
if (MLX5_CAP_PCAM_FEATURE(dev->mdev, rx_icrc_encapsulated_counter)) {
|
|
for (i = 0; i < ARRAY_SIZE(ext_ppcnt_cnts); i++, j++) {
|
|
names[j] = ext_ppcnt_cnts[i].name;
|
|
offsets[j] = ext_ppcnt_cnts[i].offset;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev)
|
|
{
|
|
int err = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < dev->num_ports; i++) {
|
|
err = __mlx5_ib_alloc_counters(dev, &dev->port[i].cnts);
|
|
if (err)
|
|
goto err_alloc;
|
|
|
|
mlx5_ib_fill_counters(dev, dev->port[i].cnts.names,
|
|
dev->port[i].cnts.offsets);
|
|
|
|
err = mlx5_core_alloc_q_counter(dev->mdev,
|
|
&dev->port[i].cnts.set_id);
|
|
if (err) {
|
|
mlx5_ib_warn(dev,
|
|
"couldn't allocate queue counter for port %d, err %d\n",
|
|
i + 1, err);
|
|
goto err_alloc;
|
|
}
|
|
dev->port[i].cnts.set_id_valid = true;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_alloc:
|
|
mlx5_ib_dealloc_counters(dev);
|
|
return err;
|
|
}
|
|
|
|
static struct rdma_hw_stats *mlx5_ib_alloc_hw_stats(struct ib_device *ibdev,
|
|
u8 port_num)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_ib_port *port = &dev->port[port_num - 1];
|
|
|
|
/* We support only per port stats */
|
|
if (port_num == 0)
|
|
return NULL;
|
|
|
|
return rdma_alloc_hw_stats_struct(port->cnts.names,
|
|
port->cnts.num_q_counters +
|
|
port->cnts.num_cong_counters +
|
|
port->cnts.num_ext_ppcnt_counters,
|
|
RDMA_HW_STATS_DEFAULT_LIFESPAN);
|
|
}
|
|
|
|
static int mlx5_ib_query_q_counters(struct mlx5_core_dev *mdev,
|
|
struct mlx5_ib_port *port,
|
|
struct rdma_hw_stats *stats)
|
|
{
|
|
int outlen = MLX5_ST_SZ_BYTES(query_q_counter_out);
|
|
void *out;
|
|
__be32 val;
|
|
int ret, i;
|
|
|
|
out = kvzalloc(outlen, GFP_KERNEL);
|
|
if (!out)
|
|
return -ENOMEM;
|
|
|
|
ret = mlx5_core_query_q_counter(mdev,
|
|
port->cnts.set_id, 0,
|
|
out, outlen);
|
|
if (ret)
|
|
goto free;
|
|
|
|
for (i = 0; i < port->cnts.num_q_counters; i++) {
|
|
val = *(__be32 *)(out + port->cnts.offsets[i]);
|
|
stats->value[i] = (u64)be32_to_cpu(val);
|
|
}
|
|
|
|
free:
|
|
kvfree(out);
|
|
return ret;
|
|
}
|
|
|
|
static int mlx5_ib_query_ext_ppcnt_counters(struct mlx5_ib_dev *dev,
|
|
struct mlx5_ib_port *port,
|
|
struct rdma_hw_stats *stats)
|
|
{
|
|
int offset = port->cnts.num_q_counters + port->cnts.num_cong_counters;
|
|
int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
|
|
int ret, i;
|
|
void *out;
|
|
|
|
out = kvzalloc(sz, GFP_KERNEL);
|
|
if (!out)
|
|
return -ENOMEM;
|
|
|
|
ret = mlx5_cmd_query_ext_ppcnt_counters(dev->mdev, out);
|
|
if (ret)
|
|
goto free;
|
|
|
|
for (i = 0; i < port->cnts.num_ext_ppcnt_counters; i++) {
|
|
stats->value[i + offset] =
|
|
be64_to_cpup((__be64 *)(out +
|
|
port->cnts.offsets[i + offset]));
|
|
}
|
|
|
|
free:
|
|
kvfree(out);
|
|
return ret;
|
|
}
|
|
|
|
static int mlx5_ib_get_hw_stats(struct ib_device *ibdev,
|
|
struct rdma_hw_stats *stats,
|
|
u8 port_num, int index)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_ib_port *port = &dev->port[port_num - 1];
|
|
struct mlx5_core_dev *mdev;
|
|
int ret, num_counters;
|
|
u8 mdev_port_num;
|
|
|
|
if (!stats)
|
|
return -EINVAL;
|
|
|
|
num_counters = port->cnts.num_q_counters +
|
|
port->cnts.num_cong_counters +
|
|
port->cnts.num_ext_ppcnt_counters;
|
|
|
|
/* q_counters are per IB device, query the master mdev */
|
|
ret = mlx5_ib_query_q_counters(dev->mdev, port, stats);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (MLX5_CAP_PCAM_FEATURE(dev->mdev, rx_icrc_encapsulated_counter)) {
|
|
ret = mlx5_ib_query_ext_ppcnt_counters(dev, port, stats);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
|
|
mdev = mlx5_ib_get_native_port_mdev(dev, port_num,
|
|
&mdev_port_num);
|
|
if (!mdev) {
|
|
/* If port is not affiliated yet, its in down state
|
|
* which doesn't have any counters yet, so it would be
|
|
* zero. So no need to read from the HCA.
|
|
*/
|
|
goto done;
|
|
}
|
|
ret = mlx5_lag_query_cong_counters(dev->mdev,
|
|
stats->value +
|
|
port->cnts.num_q_counters,
|
|
port->cnts.num_cong_counters,
|
|
port->cnts.offsets +
|
|
port->cnts.num_q_counters);
|
|
|
|
mlx5_ib_put_native_port_mdev(dev, port_num);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
done:
|
|
return num_counters;
|
|
}
|
|
|
|
static struct net_device*
|
|
mlx5_ib_alloc_rdma_netdev(struct ib_device *hca,
|
|
u8 port_num,
|
|
enum rdma_netdev_t type,
|
|
const char *name,
|
|
unsigned char name_assign_type,
|
|
void (*setup)(struct net_device *))
|
|
{
|
|
struct net_device *netdev;
|
|
|
|
if (type != RDMA_NETDEV_IPOIB)
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
netdev = mlx5_rdma_netdev_alloc(to_mdev(hca)->mdev, hca,
|
|
name, setup);
|
|
return netdev;
|
|
}
|
|
|
|
static void delay_drop_debugfs_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
if (!dev->delay_drop.dbg)
|
|
return;
|
|
debugfs_remove_recursive(dev->delay_drop.dbg->dir_debugfs);
|
|
kfree(dev->delay_drop.dbg);
|
|
dev->delay_drop.dbg = NULL;
|
|
}
|
|
|
|
static void cancel_delay_drop(struct mlx5_ib_dev *dev)
|
|
{
|
|
if (!(dev->ib_dev.attrs.raw_packet_caps & IB_RAW_PACKET_CAP_DELAY_DROP))
|
|
return;
|
|
|
|
cancel_work_sync(&dev->delay_drop.delay_drop_work);
|
|
delay_drop_debugfs_cleanup(dev);
|
|
}
|
|
|
|
static ssize_t delay_drop_timeout_read(struct file *filp, char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct mlx5_ib_delay_drop *delay_drop = filp->private_data;
|
|
char lbuf[20];
|
|
int len;
|
|
|
|
len = snprintf(lbuf, sizeof(lbuf), "%u\n", delay_drop->timeout);
|
|
return simple_read_from_buffer(buf, count, pos, lbuf, len);
|
|
}
|
|
|
|
static ssize_t delay_drop_timeout_write(struct file *filp, const char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct mlx5_ib_delay_drop *delay_drop = filp->private_data;
|
|
u32 timeout;
|
|
u32 var;
|
|
|
|
if (kstrtouint_from_user(buf, count, 0, &var))
|
|
return -EFAULT;
|
|
|
|
timeout = min_t(u32, roundup(var, 100), MLX5_MAX_DELAY_DROP_TIMEOUT_MS *
|
|
1000);
|
|
if (timeout != var)
|
|
mlx5_ib_dbg(delay_drop->dev, "Round delay drop timeout to %u usec\n",
|
|
timeout);
|
|
|
|
delay_drop->timeout = timeout;
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fops_delay_drop_timeout = {
|
|
.owner = THIS_MODULE,
|
|
.open = simple_open,
|
|
.write = delay_drop_timeout_write,
|
|
.read = delay_drop_timeout_read,
|
|
};
|
|
|
|
static int delay_drop_debugfs_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_ib_dbg_delay_drop *dbg;
|
|
|
|
if (!mlx5_debugfs_root)
|
|
return 0;
|
|
|
|
dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
|
|
if (!dbg)
|
|
return -ENOMEM;
|
|
|
|
dev->delay_drop.dbg = dbg;
|
|
|
|
dbg->dir_debugfs =
|
|
debugfs_create_dir("delay_drop",
|
|
dev->mdev->priv.dbg_root);
|
|
if (!dbg->dir_debugfs)
|
|
goto out_debugfs;
|
|
|
|
dbg->events_cnt_debugfs =
|
|
debugfs_create_atomic_t("num_timeout_events", 0400,
|
|
dbg->dir_debugfs,
|
|
&dev->delay_drop.events_cnt);
|
|
if (!dbg->events_cnt_debugfs)
|
|
goto out_debugfs;
|
|
|
|
dbg->rqs_cnt_debugfs =
|
|
debugfs_create_atomic_t("num_rqs", 0400,
|
|
dbg->dir_debugfs,
|
|
&dev->delay_drop.rqs_cnt);
|
|
if (!dbg->rqs_cnt_debugfs)
|
|
goto out_debugfs;
|
|
|
|
dbg->timeout_debugfs =
|
|
debugfs_create_file("timeout", 0600,
|
|
dbg->dir_debugfs,
|
|
&dev->delay_drop,
|
|
&fops_delay_drop_timeout);
|
|
if (!dbg->timeout_debugfs)
|
|
goto out_debugfs;
|
|
|
|
return 0;
|
|
|
|
out_debugfs:
|
|
delay_drop_debugfs_cleanup(dev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void init_delay_drop(struct mlx5_ib_dev *dev)
|
|
{
|
|
if (!(dev->ib_dev.attrs.raw_packet_caps & IB_RAW_PACKET_CAP_DELAY_DROP))
|
|
return;
|
|
|
|
mutex_init(&dev->delay_drop.lock);
|
|
dev->delay_drop.dev = dev;
|
|
dev->delay_drop.activate = false;
|
|
dev->delay_drop.timeout = MLX5_MAX_DELAY_DROP_TIMEOUT_MS * 1000;
|
|
INIT_WORK(&dev->delay_drop.delay_drop_work, delay_drop_handler);
|
|
atomic_set(&dev->delay_drop.rqs_cnt, 0);
|
|
atomic_set(&dev->delay_drop.events_cnt, 0);
|
|
|
|
if (delay_drop_debugfs_init(dev))
|
|
mlx5_ib_warn(dev, "Failed to init delay drop debugfs\n");
|
|
}
|
|
|
|
static const struct cpumask *
|
|
mlx5_ib_get_vector_affinity(struct ib_device *ibdev, int comp_vector)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
|
|
return mlx5_get_vector_affinity_hint(dev->mdev, comp_vector);
|
|
}
|
|
|
|
/* The mlx5_ib_multiport_mutex should be held when calling this function */
|
|
static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
|
|
struct mlx5_ib_multiport_info *mpi)
|
|
{
|
|
u8 port_num = mlx5_core_native_port_num(mpi->mdev) - 1;
|
|
struct mlx5_ib_port *port = &ibdev->port[port_num];
|
|
int comps;
|
|
int err;
|
|
int i;
|
|
|
|
mlx5_ib_cleanup_cong_debugfs(ibdev, port_num);
|
|
|
|
spin_lock(&port->mp.mpi_lock);
|
|
if (!mpi->ibdev) {
|
|
spin_unlock(&port->mp.mpi_lock);
|
|
return;
|
|
}
|
|
mpi->ibdev = NULL;
|
|
|
|
spin_unlock(&port->mp.mpi_lock);
|
|
mlx5_remove_netdev_notifier(ibdev, port_num);
|
|
spin_lock(&port->mp.mpi_lock);
|
|
|
|
comps = mpi->mdev_refcnt;
|
|
if (comps) {
|
|
mpi->unaffiliate = true;
|
|
init_completion(&mpi->unref_comp);
|
|
spin_unlock(&port->mp.mpi_lock);
|
|
|
|
for (i = 0; i < comps; i++)
|
|
wait_for_completion(&mpi->unref_comp);
|
|
|
|
spin_lock(&port->mp.mpi_lock);
|
|
mpi->unaffiliate = false;
|
|
}
|
|
|
|
port->mp.mpi = NULL;
|
|
|
|
list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
|
|
|
|
spin_unlock(&port->mp.mpi_lock);
|
|
|
|
err = mlx5_nic_vport_unaffiliate_multiport(mpi->mdev);
|
|
|
|
mlx5_ib_dbg(ibdev, "unaffiliated port %d\n", port_num + 1);
|
|
/* Log an error, still needed to cleanup the pointers and add
|
|
* it back to the list.
|
|
*/
|
|
if (err)
|
|
mlx5_ib_err(ibdev, "Failed to unaffiliate port %u\n",
|
|
port_num + 1);
|
|
|
|
ibdev->roce[port_num].last_port_state = IB_PORT_DOWN;
|
|
}
|
|
|
|
/* The mlx5_ib_multiport_mutex should be held when calling this function */
|
|
static bool mlx5_ib_bind_slave_port(struct mlx5_ib_dev *ibdev,
|
|
struct mlx5_ib_multiport_info *mpi)
|
|
{
|
|
u8 port_num = mlx5_core_native_port_num(mpi->mdev) - 1;
|
|
int err;
|
|
|
|
spin_lock(&ibdev->port[port_num].mp.mpi_lock);
|
|
if (ibdev->port[port_num].mp.mpi) {
|
|
mlx5_ib_dbg(ibdev, "port %d already affiliated.\n",
|
|
port_num + 1);
|
|
spin_unlock(&ibdev->port[port_num].mp.mpi_lock);
|
|
return false;
|
|
}
|
|
|
|
ibdev->port[port_num].mp.mpi = mpi;
|
|
mpi->ibdev = ibdev;
|
|
spin_unlock(&ibdev->port[port_num].mp.mpi_lock);
|
|
|
|
err = mlx5_nic_vport_affiliate_multiport(ibdev->mdev, mpi->mdev);
|
|
if (err)
|
|
goto unbind;
|
|
|
|
err = get_port_caps(ibdev, mlx5_core_native_port_num(mpi->mdev));
|
|
if (err)
|
|
goto unbind;
|
|
|
|
err = mlx5_add_netdev_notifier(ibdev, port_num);
|
|
if (err) {
|
|
mlx5_ib_err(ibdev, "failed adding netdev notifier for port %u\n",
|
|
port_num + 1);
|
|
goto unbind;
|
|
}
|
|
|
|
err = mlx5_ib_init_cong_debugfs(ibdev, port_num);
|
|
if (err)
|
|
goto unbind;
|
|
|
|
return true;
|
|
|
|
unbind:
|
|
mlx5_ib_unbind_slave_port(ibdev, mpi);
|
|
return false;
|
|
}
|
|
|
|
static int mlx5_ib_init_multiport_master(struct mlx5_ib_dev *dev)
|
|
{
|
|
int port_num = mlx5_core_native_port_num(dev->mdev) - 1;
|
|
enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev,
|
|
port_num + 1);
|
|
struct mlx5_ib_multiport_info *mpi;
|
|
int err;
|
|
int i;
|
|
|
|
if (!mlx5_core_is_mp_master(dev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
|
|
return 0;
|
|
|
|
err = mlx5_query_nic_vport_system_image_guid(dev->mdev,
|
|
&dev->sys_image_guid);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_nic_vport_enable_roce(dev->mdev);
|
|
if (err)
|
|
return err;
|
|
|
|
mutex_lock(&mlx5_ib_multiport_mutex);
|
|
for (i = 0; i < dev->num_ports; i++) {
|
|
bool bound = false;
|
|
|
|
/* build a stub multiport info struct for the native port. */
|
|
if (i == port_num) {
|
|
mpi = kzalloc(sizeof(*mpi), GFP_KERNEL);
|
|
if (!mpi) {
|
|
mutex_unlock(&mlx5_ib_multiport_mutex);
|
|
mlx5_nic_vport_disable_roce(dev->mdev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mpi->is_master = true;
|
|
mpi->mdev = dev->mdev;
|
|
mpi->sys_image_guid = dev->sys_image_guid;
|
|
dev->port[i].mp.mpi = mpi;
|
|
mpi->ibdev = dev;
|
|
mpi = NULL;
|
|
continue;
|
|
}
|
|
|
|
list_for_each_entry(mpi, &mlx5_ib_unaffiliated_port_list,
|
|
list) {
|
|
if (dev->sys_image_guid == mpi->sys_image_guid &&
|
|
(mlx5_core_native_port_num(mpi->mdev) - 1) == i) {
|
|
bound = mlx5_ib_bind_slave_port(dev, mpi);
|
|
}
|
|
|
|
if (bound) {
|
|
dev_dbg(&mpi->mdev->pdev->dev, "removing port from unaffiliated list.\n");
|
|
mlx5_ib_dbg(dev, "port %d bound\n", i + 1);
|
|
list_del(&mpi->list);
|
|
break;
|
|
}
|
|
}
|
|
if (!bound) {
|
|
get_port_caps(dev, i + 1);
|
|
mlx5_ib_dbg(dev, "no free port found for port %d\n",
|
|
i + 1);
|
|
}
|
|
}
|
|
|
|
list_add_tail(&dev->ib_dev_list, &mlx5_ib_dev_list);
|
|
mutex_unlock(&mlx5_ib_multiport_mutex);
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev)
|
|
{
|
|
int port_num = mlx5_core_native_port_num(dev->mdev) - 1;
|
|
enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev,
|
|
port_num + 1);
|
|
int i;
|
|
|
|
if (!mlx5_core_is_mp_master(dev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
|
|
return;
|
|
|
|
mutex_lock(&mlx5_ib_multiport_mutex);
|
|
for (i = 0; i < dev->num_ports; i++) {
|
|
if (dev->port[i].mp.mpi) {
|
|
/* Destroy the native port stub */
|
|
if (i == port_num) {
|
|
kfree(dev->port[i].mp.mpi);
|
|
dev->port[i].mp.mpi = NULL;
|
|
} else {
|
|
mlx5_ib_dbg(dev, "unbinding port_num: %d\n", i + 1);
|
|
mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
|
|
}
|
|
}
|
|
}
|
|
|
|
mlx5_ib_dbg(dev, "removing from devlist\n");
|
|
list_del(&dev->ib_dev_list);
|
|
mutex_unlock(&mlx5_ib_multiport_mutex);
|
|
|
|
mlx5_nic_vport_disable_roce(dev->mdev);
|
|
}
|
|
|
|
ADD_UVERBS_ATTRIBUTES_SIMPLE(
|
|
mlx5_ib_dm,
|
|
UVERBS_OBJECT_DM,
|
|
UVERBS_METHOD_DM_ALLOC,
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
|
|
UVERBS_ATTR_TYPE(u64),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
|
|
UVERBS_ATTR_TYPE(u16),
|
|
UA_MANDATORY));
|
|
|
|
ADD_UVERBS_ATTRIBUTES_SIMPLE(
|
|
mlx5_ib_flow_action,
|
|
UVERBS_OBJECT_FLOW_ACTION,
|
|
UVERBS_METHOD_FLOW_ACTION_ESP_CREATE,
|
|
UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS,
|
|
enum mlx5_ib_uapi_flow_action_flags));
|
|
|
|
static int populate_specs_root(struct mlx5_ib_dev *dev)
|
|
{
|
|
const struct uverbs_object_tree_def **trees = dev->driver_trees;
|
|
size_t num_trees = 0;
|
|
|
|
if (mlx5_accel_ipsec_device_caps(dev->mdev) &
|
|
MLX5_ACCEL_IPSEC_CAP_DEVICE)
|
|
trees[num_trees++] = &mlx5_ib_flow_action;
|
|
|
|
if (MLX5_CAP_DEV_MEM(dev->mdev, memic))
|
|
trees[num_trees++] = &mlx5_ib_dm;
|
|
|
|
if (MLX5_CAP_GEN_64(dev->mdev, general_obj_types) &
|
|
MLX5_GENERAL_OBJ_TYPES_CAP_UCTX)
|
|
trees[num_trees++] = mlx5_ib_get_devx_tree();
|
|
|
|
num_trees += mlx5_ib_get_flow_trees(trees + num_trees);
|
|
|
|
WARN_ON(num_trees >= ARRAY_SIZE(dev->driver_trees));
|
|
trees[num_trees] = NULL;
|
|
dev->ib_dev.driver_specs = trees;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_ib_read_counters(struct ib_counters *counters,
|
|
struct ib_counters_read_attr *read_attr,
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_mcounters *mcounters = to_mcounters(counters);
|
|
struct mlx5_read_counters_attr mread_attr = {};
|
|
struct mlx5_ib_flow_counters_desc *desc;
|
|
int ret, i;
|
|
|
|
mutex_lock(&mcounters->mcntrs_mutex);
|
|
if (mcounters->cntrs_max_index > read_attr->ncounters) {
|
|
ret = -EINVAL;
|
|
goto err_bound;
|
|
}
|
|
|
|
mread_attr.out = kcalloc(mcounters->counters_num, sizeof(u64),
|
|
GFP_KERNEL);
|
|
if (!mread_attr.out) {
|
|
ret = -ENOMEM;
|
|
goto err_bound;
|
|
}
|
|
|
|
mread_attr.hw_cntrs_hndl = mcounters->hw_cntrs_hndl;
|
|
mread_attr.flags = read_attr->flags;
|
|
ret = mcounters->read_counters(counters->device, &mread_attr);
|
|
if (ret)
|
|
goto err_read;
|
|
|
|
/* do the pass over the counters data array to assign according to the
|
|
* descriptions and indexing pairs
|
|
*/
|
|
desc = mcounters->counters_data;
|
|
for (i = 0; i < mcounters->ncounters; i++)
|
|
read_attr->counters_buff[desc[i].index] += mread_attr.out[desc[i].description];
|
|
|
|
err_read:
|
|
kfree(mread_attr.out);
|
|
err_bound:
|
|
mutex_unlock(&mcounters->mcntrs_mutex);
|
|
return ret;
|
|
}
|
|
|
|
static int mlx5_ib_destroy_counters(struct ib_counters *counters)
|
|
{
|
|
struct mlx5_ib_mcounters *mcounters = to_mcounters(counters);
|
|
|
|
counters_clear_description(counters);
|
|
if (mcounters->hw_cntrs_hndl)
|
|
mlx5_fc_destroy(to_mdev(counters->device)->mdev,
|
|
mcounters->hw_cntrs_hndl);
|
|
|
|
kfree(mcounters);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ib_counters *mlx5_ib_create_counters(struct ib_device *device,
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_mcounters *mcounters;
|
|
|
|
mcounters = kzalloc(sizeof(*mcounters), GFP_KERNEL);
|
|
if (!mcounters)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
mutex_init(&mcounters->mcntrs_mutex);
|
|
|
|
return &mcounters->ibcntrs;
|
|
}
|
|
|
|
void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_ib_cleanup_multiport_master(dev);
|
|
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
|
|
cleanup_srcu_struct(&dev->mr_srcu);
|
|
#endif
|
|
kfree(dev->port);
|
|
}
|
|
|
|
int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
const char *name;
|
|
int err;
|
|
int i;
|
|
|
|
dev->port = kcalloc(dev->num_ports, sizeof(*dev->port),
|
|
GFP_KERNEL);
|
|
if (!dev->port)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < dev->num_ports; i++) {
|
|
spin_lock_init(&dev->port[i].mp.mpi_lock);
|
|
rwlock_init(&dev->roce[i].netdev_lock);
|
|
}
|
|
|
|
err = mlx5_ib_init_multiport_master(dev);
|
|
if (err)
|
|
goto err_free_port;
|
|
|
|
if (!mlx5_core_mp_enabled(mdev)) {
|
|
for (i = 1; i <= dev->num_ports; i++) {
|
|
err = get_port_caps(dev, i);
|
|
if (err)
|
|
break;
|
|
}
|
|
} else {
|
|
err = get_port_caps(dev, mlx5_core_native_port_num(mdev));
|
|
}
|
|
if (err)
|
|
goto err_mp;
|
|
|
|
if (mlx5_use_mad_ifc(dev))
|
|
get_ext_port_caps(dev);
|
|
|
|
if (!mlx5_lag_is_active(mdev))
|
|
name = "mlx5_%d";
|
|
else
|
|
name = "mlx5_bond_%d";
|
|
|
|
strlcpy(dev->ib_dev.name, name, IB_DEVICE_NAME_MAX);
|
|
dev->ib_dev.owner = THIS_MODULE;
|
|
dev->ib_dev.node_type = RDMA_NODE_IB_CA;
|
|
dev->ib_dev.local_dma_lkey = 0 /* not supported for now */;
|
|
dev->ib_dev.phys_port_cnt = dev->num_ports;
|
|
dev->ib_dev.num_comp_vectors =
|
|
dev->mdev->priv.eq_table.num_comp_vectors;
|
|
dev->ib_dev.dev.parent = &mdev->pdev->dev;
|
|
|
|
mutex_init(&dev->cap_mask_mutex);
|
|
INIT_LIST_HEAD(&dev->qp_list);
|
|
spin_lock_init(&dev->reset_flow_resource_lock);
|
|
|
|
spin_lock_init(&dev->memic.memic_lock);
|
|
dev->memic.dev = mdev;
|
|
|
|
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
|
|
err = init_srcu_struct(&dev->mr_srcu);
|
|
if (err)
|
|
goto err_free_port;
|
|
#endif
|
|
|
|
return 0;
|
|
err_mp:
|
|
mlx5_ib_cleanup_multiport_master(dev);
|
|
|
|
err_free_port:
|
|
kfree(dev->port);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int mlx5_ib_stage_flow_db_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
dev->flow_db = kzalloc(sizeof(*dev->flow_db), GFP_KERNEL);
|
|
|
|
if (!dev->flow_db)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&dev->flow_db->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mlx5_ib_stage_rep_flow_db_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_ib_dev *nic_dev;
|
|
|
|
nic_dev = mlx5_ib_get_uplink_ibdev(dev->mdev->priv.eswitch);
|
|
|
|
if (!nic_dev)
|
|
return -EINVAL;
|
|
|
|
dev->flow_db = nic_dev->flow_db;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx5_ib_stage_flow_db_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
kfree(dev->flow_db);
|
|
}
|
|
|
|
int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
int err;
|
|
|
|
dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION;
|
|
dev->ib_dev.uverbs_cmd_mask =
|
|
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
|
|
(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
|
|
(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_AH) |
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_AH) |
|
|
(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);
|
|
dev->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) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_MODIFY_QP) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_MODIFY_CQ);
|
|
|
|
dev->ib_dev.query_device = mlx5_ib_query_device;
|
|
dev->ib_dev.get_link_layer = mlx5_ib_port_link_layer;
|
|
dev->ib_dev.query_gid = mlx5_ib_query_gid;
|
|
dev->ib_dev.add_gid = mlx5_ib_add_gid;
|
|
dev->ib_dev.del_gid = mlx5_ib_del_gid;
|
|
dev->ib_dev.query_pkey = mlx5_ib_query_pkey;
|
|
dev->ib_dev.modify_device = mlx5_ib_modify_device;
|
|
dev->ib_dev.modify_port = mlx5_ib_modify_port;
|
|
dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext;
|
|
dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext;
|
|
dev->ib_dev.mmap = mlx5_ib_mmap;
|
|
dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd;
|
|
dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd;
|
|
dev->ib_dev.create_ah = mlx5_ib_create_ah;
|
|
dev->ib_dev.query_ah = mlx5_ib_query_ah;
|
|
dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah;
|
|
dev->ib_dev.create_srq = mlx5_ib_create_srq;
|
|
dev->ib_dev.modify_srq = mlx5_ib_modify_srq;
|
|
dev->ib_dev.query_srq = mlx5_ib_query_srq;
|
|
dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq;
|
|
dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv;
|
|
dev->ib_dev.create_qp = mlx5_ib_create_qp;
|
|
dev->ib_dev.modify_qp = mlx5_ib_modify_qp;
|
|
dev->ib_dev.query_qp = mlx5_ib_query_qp;
|
|
dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp;
|
|
dev->ib_dev.drain_sq = mlx5_ib_drain_sq;
|
|
dev->ib_dev.drain_rq = mlx5_ib_drain_rq;
|
|
dev->ib_dev.post_send = mlx5_ib_post_send;
|
|
dev->ib_dev.post_recv = mlx5_ib_post_recv;
|
|
dev->ib_dev.create_cq = mlx5_ib_create_cq;
|
|
dev->ib_dev.modify_cq = mlx5_ib_modify_cq;
|
|
dev->ib_dev.resize_cq = mlx5_ib_resize_cq;
|
|
dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq;
|
|
dev->ib_dev.poll_cq = mlx5_ib_poll_cq;
|
|
dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq;
|
|
dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr;
|
|
dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr;
|
|
dev->ib_dev.rereg_user_mr = mlx5_ib_rereg_user_mr;
|
|
dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr;
|
|
dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach;
|
|
dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach;
|
|
dev->ib_dev.process_mad = mlx5_ib_process_mad;
|
|
dev->ib_dev.alloc_mr = mlx5_ib_alloc_mr;
|
|
dev->ib_dev.map_mr_sg = mlx5_ib_map_mr_sg;
|
|
dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status;
|
|
dev->ib_dev.get_dev_fw_str = get_dev_fw_str;
|
|
dev->ib_dev.get_vector_affinity = mlx5_ib_get_vector_affinity;
|
|
if (MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads))
|
|
dev->ib_dev.alloc_rdma_netdev = mlx5_ib_alloc_rdma_netdev;
|
|
|
|
if (mlx5_core_is_pf(mdev)) {
|
|
dev->ib_dev.get_vf_config = mlx5_ib_get_vf_config;
|
|
dev->ib_dev.set_vf_link_state = mlx5_ib_set_vf_link_state;
|
|
dev->ib_dev.get_vf_stats = mlx5_ib_get_vf_stats;
|
|
dev->ib_dev.set_vf_guid = mlx5_ib_set_vf_guid;
|
|
}
|
|
|
|
dev->ib_dev.disassociate_ucontext = mlx5_ib_disassociate_ucontext;
|
|
|
|
dev->umr_fence = mlx5_get_umr_fence(MLX5_CAP_GEN(mdev, umr_fence));
|
|
|
|
if (MLX5_CAP_GEN(mdev, imaicl)) {
|
|
dev->ib_dev.alloc_mw = mlx5_ib_alloc_mw;
|
|
dev->ib_dev.dealloc_mw = mlx5_ib_dealloc_mw;
|
|
dev->ib_dev.uverbs_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
|
|
(1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
|
|
}
|
|
|
|
if (MLX5_CAP_GEN(mdev, xrc)) {
|
|
dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd;
|
|
dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd;
|
|
dev->ib_dev.uverbs_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
|
|
(1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
|
|
}
|
|
|
|
if (MLX5_CAP_DEV_MEM(mdev, memic)) {
|
|
dev->ib_dev.alloc_dm = mlx5_ib_alloc_dm;
|
|
dev->ib_dev.dealloc_dm = mlx5_ib_dealloc_dm;
|
|
dev->ib_dev.reg_dm_mr = mlx5_ib_reg_dm_mr;
|
|
}
|
|
|
|
dev->ib_dev.create_flow = mlx5_ib_create_flow;
|
|
dev->ib_dev.destroy_flow = mlx5_ib_destroy_flow;
|
|
dev->ib_dev.uverbs_ex_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
|
|
dev->ib_dev.create_flow_action_esp = mlx5_ib_create_flow_action_esp;
|
|
dev->ib_dev.destroy_flow_action = mlx5_ib_destroy_flow_action;
|
|
dev->ib_dev.modify_flow_action_esp = mlx5_ib_modify_flow_action_esp;
|
|
dev->ib_dev.driver_id = RDMA_DRIVER_MLX5;
|
|
dev->ib_dev.create_counters = mlx5_ib_create_counters;
|
|
dev->ib_dev.destroy_counters = mlx5_ib_destroy_counters;
|
|
dev->ib_dev.read_counters = mlx5_ib_read_counters;
|
|
|
|
err = init_node_data(dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if ((MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) &&
|
|
(MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) ||
|
|
MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc)))
|
|
mutex_init(&dev->lb_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_ib_stage_non_default_cb(struct mlx5_ib_dev *dev)
|
|
{
|
|
dev->ib_dev.get_port_immutable = mlx5_port_immutable;
|
|
dev->ib_dev.query_port = mlx5_ib_query_port;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mlx5_ib_stage_rep_non_default_cb(struct mlx5_ib_dev *dev)
|
|
{
|
|
dev->ib_dev.get_port_immutable = mlx5_port_rep_immutable;
|
|
dev->ib_dev.query_port = mlx5_ib_rep_query_port;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_ib_stage_common_roce_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
u8 port_num;
|
|
int i;
|
|
|
|
for (i = 0; i < dev->num_ports; i++) {
|
|
dev->roce[i].dev = dev;
|
|
dev->roce[i].native_port_num = i + 1;
|
|
dev->roce[i].last_port_state = IB_PORT_DOWN;
|
|
}
|
|
|
|
dev->ib_dev.get_netdev = mlx5_ib_get_netdev;
|
|
dev->ib_dev.create_wq = mlx5_ib_create_wq;
|
|
dev->ib_dev.modify_wq = mlx5_ib_modify_wq;
|
|
dev->ib_dev.destroy_wq = mlx5_ib_destroy_wq;
|
|
dev->ib_dev.create_rwq_ind_table = mlx5_ib_create_rwq_ind_table;
|
|
dev->ib_dev.destroy_rwq_ind_table = mlx5_ib_destroy_rwq_ind_table;
|
|
|
|
dev->ib_dev.uverbs_ex_cmd_mask |=
|
|
(1ull << IB_USER_VERBS_EX_CMD_CREATE_WQ) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_MODIFY_WQ) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_DESTROY_WQ) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL) |
|
|
(1ull << IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL);
|
|
|
|
port_num = mlx5_core_native_port_num(dev->mdev) - 1;
|
|
|
|
return mlx5_add_netdev_notifier(dev, port_num);
|
|
}
|
|
|
|
static void mlx5_ib_stage_common_roce_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
u8 port_num = mlx5_core_native_port_num(dev->mdev) - 1;
|
|
|
|
mlx5_remove_netdev_notifier(dev, port_num);
|
|
}
|
|
|
|
int mlx5_ib_stage_rep_roce_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
enum rdma_link_layer ll;
|
|
int port_type_cap;
|
|
int err = 0;
|
|
|
|
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
|
|
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
|
|
|
|
if (ll == IB_LINK_LAYER_ETHERNET)
|
|
err = mlx5_ib_stage_common_roce_init(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
void mlx5_ib_stage_rep_roce_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_ib_stage_common_roce_cleanup(dev);
|
|
}
|
|
|
|
static int mlx5_ib_stage_roce_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
enum rdma_link_layer ll;
|
|
int port_type_cap;
|
|
int err;
|
|
|
|
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
|
|
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
|
|
|
|
if (ll == IB_LINK_LAYER_ETHERNET) {
|
|
err = mlx5_ib_stage_common_roce_init(dev);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_enable_eth(dev);
|
|
if (err)
|
|
goto cleanup;
|
|
}
|
|
|
|
return 0;
|
|
cleanup:
|
|
mlx5_ib_stage_common_roce_cleanup(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_ib_stage_roce_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
enum rdma_link_layer ll;
|
|
int port_type_cap;
|
|
|
|
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
|
|
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
|
|
|
|
if (ll == IB_LINK_LAYER_ETHERNET) {
|
|
mlx5_disable_eth(dev);
|
|
mlx5_ib_stage_common_roce_cleanup(dev);
|
|
}
|
|
}
|
|
|
|
int mlx5_ib_stage_dev_res_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
return create_dev_resources(&dev->devr);
|
|
}
|
|
|
|
void mlx5_ib_stage_dev_res_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
destroy_dev_resources(&dev->devr);
|
|
}
|
|
|
|
static int mlx5_ib_stage_odp_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_ib_internal_fill_odp_caps(dev);
|
|
|
|
return mlx5_ib_odp_init_one(dev);
|
|
}
|
|
|
|
int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) {
|
|
dev->ib_dev.get_hw_stats = mlx5_ib_get_hw_stats;
|
|
dev->ib_dev.alloc_hw_stats = mlx5_ib_alloc_hw_stats;
|
|
|
|
return mlx5_ib_alloc_counters(dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mlx5_ib_stage_counters_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt))
|
|
mlx5_ib_dealloc_counters(dev);
|
|
}
|
|
|
|
static int mlx5_ib_stage_cong_debugfs_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
return mlx5_ib_init_cong_debugfs(dev,
|
|
mlx5_core_native_port_num(dev->mdev) - 1);
|
|
}
|
|
|
|
static void mlx5_ib_stage_cong_debugfs_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_ib_cleanup_cong_debugfs(dev,
|
|
mlx5_core_native_port_num(dev->mdev) - 1);
|
|
}
|
|
|
|
static int mlx5_ib_stage_uar_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
dev->mdev->priv.uar = mlx5_get_uars_page(dev->mdev);
|
|
return PTR_ERR_OR_ZERO(dev->mdev->priv.uar);
|
|
}
|
|
|
|
static void mlx5_ib_stage_uar_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar);
|
|
}
|
|
|
|
int mlx5_ib_stage_bfrag_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
int err;
|
|
|
|
err = mlx5_alloc_bfreg(dev->mdev, &dev->bfreg, false, false);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_alloc_bfreg(dev->mdev, &dev->fp_bfreg, false, true);
|
|
if (err)
|
|
mlx5_free_bfreg(dev->mdev, &dev->bfreg);
|
|
|
|
return err;
|
|
}
|
|
|
|
void mlx5_ib_stage_bfrag_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg);
|
|
mlx5_free_bfreg(dev->mdev, &dev->bfreg);
|
|
}
|
|
|
|
static int mlx5_ib_stage_populate_specs(struct mlx5_ib_dev *dev)
|
|
{
|
|
return populate_specs_root(dev);
|
|
}
|
|
|
|
int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
return ib_register_device(&dev->ib_dev, NULL);
|
|
}
|
|
|
|
void mlx5_ib_stage_pre_ib_reg_umr_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
destroy_umrc_res(dev);
|
|
}
|
|
|
|
void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
ib_unregister_device(&dev->ib_dev);
|
|
}
|
|
|
|
int mlx5_ib_stage_post_ib_reg_umr_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
return create_umr_res(dev);
|
|
}
|
|
|
|
static int mlx5_ib_stage_delay_drop_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
init_delay_drop(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx5_ib_stage_delay_drop_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
cancel_delay_drop(dev);
|
|
}
|
|
|
|
int mlx5_ib_stage_class_attr_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
int err;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) {
|
|
err = device_create_file(&dev->ib_dev.dev,
|
|
mlx5_class_attributes[i]);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_ib_stage_rep_reg_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_ib_register_vport_reps(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlx5_ib_stage_rep_reg_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
mlx5_ib_unregister_vport_reps(dev);
|
|
}
|
|
|
|
void __mlx5_ib_remove(struct mlx5_ib_dev *dev,
|
|
const struct mlx5_ib_profile *profile,
|
|
int stage)
|
|
{
|
|
/* Number of stages to cleanup */
|
|
while (stage) {
|
|
stage--;
|
|
if (profile->stage[stage].cleanup)
|
|
profile->stage[stage].cleanup(dev);
|
|
}
|
|
|
|
ib_dealloc_device((struct ib_device *)dev);
|
|
}
|
|
|
|
void *__mlx5_ib_add(struct mlx5_ib_dev *dev,
|
|
const struct mlx5_ib_profile *profile)
|
|
{
|
|
int err;
|
|
int i;
|
|
|
|
printk_once(KERN_INFO "%s", mlx5_version);
|
|
|
|
for (i = 0; i < MLX5_IB_STAGE_MAX; i++) {
|
|
if (profile->stage[i].init) {
|
|
err = profile->stage[i].init(dev);
|
|
if (err)
|
|
goto err_out;
|
|
}
|
|
}
|
|
|
|
dev->profile = profile;
|
|
dev->ib_active = true;
|
|
|
|
return dev;
|
|
|
|
err_out:
|
|
__mlx5_ib_remove(dev, profile, i);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static const struct mlx5_ib_profile pf_profile = {
|
|
STAGE_CREATE(MLX5_IB_STAGE_INIT,
|
|
mlx5_ib_stage_init_init,
|
|
mlx5_ib_stage_init_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_FLOW_DB,
|
|
mlx5_ib_stage_flow_db_init,
|
|
mlx5_ib_stage_flow_db_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_CAPS,
|
|
mlx5_ib_stage_caps_init,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_NON_DEFAULT_CB,
|
|
mlx5_ib_stage_non_default_cb,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_ROCE,
|
|
mlx5_ib_stage_roce_init,
|
|
mlx5_ib_stage_roce_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES,
|
|
mlx5_ib_stage_dev_res_init,
|
|
mlx5_ib_stage_dev_res_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_ODP,
|
|
mlx5_ib_stage_odp_init,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_COUNTERS,
|
|
mlx5_ib_stage_counters_init,
|
|
mlx5_ib_stage_counters_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_CONG_DEBUGFS,
|
|
mlx5_ib_stage_cong_debugfs_init,
|
|
mlx5_ib_stage_cong_debugfs_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_UAR,
|
|
mlx5_ib_stage_uar_init,
|
|
mlx5_ib_stage_uar_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_BFREG,
|
|
mlx5_ib_stage_bfrag_init,
|
|
mlx5_ib_stage_bfrag_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_PRE_IB_REG_UMR,
|
|
NULL,
|
|
mlx5_ib_stage_pre_ib_reg_umr_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_SPECS,
|
|
mlx5_ib_stage_populate_specs,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_IB_REG,
|
|
mlx5_ib_stage_ib_reg_init,
|
|
mlx5_ib_stage_ib_reg_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_POST_IB_REG_UMR,
|
|
mlx5_ib_stage_post_ib_reg_umr_init,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_DELAY_DROP,
|
|
mlx5_ib_stage_delay_drop_init,
|
|
mlx5_ib_stage_delay_drop_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_CLASS_ATTR,
|
|
mlx5_ib_stage_class_attr_init,
|
|
NULL),
|
|
};
|
|
|
|
static const struct mlx5_ib_profile nic_rep_profile = {
|
|
STAGE_CREATE(MLX5_IB_STAGE_INIT,
|
|
mlx5_ib_stage_init_init,
|
|
mlx5_ib_stage_init_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_FLOW_DB,
|
|
mlx5_ib_stage_flow_db_init,
|
|
mlx5_ib_stage_flow_db_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_CAPS,
|
|
mlx5_ib_stage_caps_init,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_NON_DEFAULT_CB,
|
|
mlx5_ib_stage_rep_non_default_cb,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_ROCE,
|
|
mlx5_ib_stage_rep_roce_init,
|
|
mlx5_ib_stage_rep_roce_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES,
|
|
mlx5_ib_stage_dev_res_init,
|
|
mlx5_ib_stage_dev_res_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_COUNTERS,
|
|
mlx5_ib_stage_counters_init,
|
|
mlx5_ib_stage_counters_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_UAR,
|
|
mlx5_ib_stage_uar_init,
|
|
mlx5_ib_stage_uar_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_BFREG,
|
|
mlx5_ib_stage_bfrag_init,
|
|
mlx5_ib_stage_bfrag_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_PRE_IB_REG_UMR,
|
|
NULL,
|
|
mlx5_ib_stage_pre_ib_reg_umr_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_SPECS,
|
|
mlx5_ib_stage_populate_specs,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_IB_REG,
|
|
mlx5_ib_stage_ib_reg_init,
|
|
mlx5_ib_stage_ib_reg_cleanup),
|
|
STAGE_CREATE(MLX5_IB_STAGE_POST_IB_REG_UMR,
|
|
mlx5_ib_stage_post_ib_reg_umr_init,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_CLASS_ATTR,
|
|
mlx5_ib_stage_class_attr_init,
|
|
NULL),
|
|
STAGE_CREATE(MLX5_IB_STAGE_REP_REG,
|
|
mlx5_ib_stage_rep_reg_init,
|
|
mlx5_ib_stage_rep_reg_cleanup),
|
|
};
|
|
|
|
static void *mlx5_ib_add_slave_port(struct mlx5_core_dev *mdev)
|
|
{
|
|
struct mlx5_ib_multiport_info *mpi;
|
|
struct mlx5_ib_dev *dev;
|
|
bool bound = false;
|
|
int err;
|
|
|
|
mpi = kzalloc(sizeof(*mpi), GFP_KERNEL);
|
|
if (!mpi)
|
|
return NULL;
|
|
|
|
mpi->mdev = mdev;
|
|
|
|
err = mlx5_query_nic_vport_system_image_guid(mdev,
|
|
&mpi->sys_image_guid);
|
|
if (err) {
|
|
kfree(mpi);
|
|
return NULL;
|
|
}
|
|
|
|
mutex_lock(&mlx5_ib_multiport_mutex);
|
|
list_for_each_entry(dev, &mlx5_ib_dev_list, ib_dev_list) {
|
|
if (dev->sys_image_guid == mpi->sys_image_guid)
|
|
bound = mlx5_ib_bind_slave_port(dev, mpi);
|
|
|
|
if (bound) {
|
|
rdma_roce_rescan_device(&dev->ib_dev);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!bound) {
|
|
list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
|
|
dev_dbg(&mdev->pdev->dev, "no suitable IB device found to bind to, added to unaffiliated list.\n");
|
|
}
|
|
mutex_unlock(&mlx5_ib_multiport_mutex);
|
|
|
|
return mpi;
|
|
}
|
|
|
|
static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
|
|
{
|
|
enum rdma_link_layer ll;
|
|
struct mlx5_ib_dev *dev;
|
|
int port_type_cap;
|
|
|
|
printk_once(KERN_INFO "%s", mlx5_version);
|
|
|
|
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
|
|
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
|
|
|
|
if (mlx5_core_is_mp_slave(mdev) && ll == IB_LINK_LAYER_ETHERNET)
|
|
return mlx5_ib_add_slave_port(mdev);
|
|
|
|
dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev));
|
|
if (!dev)
|
|
return NULL;
|
|
|
|
dev->mdev = mdev;
|
|
dev->num_ports = max(MLX5_CAP_GEN(mdev, num_ports),
|
|
MLX5_CAP_GEN(mdev, num_vhca_ports));
|
|
|
|
if (MLX5_ESWITCH_MANAGER(mdev) &&
|
|
mlx5_ib_eswitch_mode(mdev->priv.eswitch) == SRIOV_OFFLOADS) {
|
|
dev->rep = mlx5_ib_vport_rep(mdev->priv.eswitch, 0);
|
|
|
|
return __mlx5_ib_add(dev, &nic_rep_profile);
|
|
}
|
|
|
|
return __mlx5_ib_add(dev, &pf_profile);
|
|
}
|
|
|
|
static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context)
|
|
{
|
|
struct mlx5_ib_multiport_info *mpi;
|
|
struct mlx5_ib_dev *dev;
|
|
|
|
if (mlx5_core_is_mp_slave(mdev)) {
|
|
mpi = context;
|
|
mutex_lock(&mlx5_ib_multiport_mutex);
|
|
if (mpi->ibdev)
|
|
mlx5_ib_unbind_slave_port(mpi->ibdev, mpi);
|
|
list_del(&mpi->list);
|
|
mutex_unlock(&mlx5_ib_multiport_mutex);
|
|
kfree(mpi);
|
|
return;
|
|
}
|
|
|
|
dev = context;
|
|
__mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX);
|
|
}
|
|
|
|
static struct mlx5_interface mlx5_ib_interface = {
|
|
.add = mlx5_ib_add,
|
|
.remove = mlx5_ib_remove,
|
|
.event = mlx5_ib_event,
|
|
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
|
|
.pfault = mlx5_ib_pfault,
|
|
#endif
|
|
.protocol = MLX5_INTERFACE_PROTOCOL_IB,
|
|
};
|
|
|
|
unsigned long mlx5_ib_get_xlt_emergency_page(void)
|
|
{
|
|
mutex_lock(&xlt_emergency_page_mutex);
|
|
return xlt_emergency_page;
|
|
}
|
|
|
|
void mlx5_ib_put_xlt_emergency_page(void)
|
|
{
|
|
mutex_unlock(&xlt_emergency_page_mutex);
|
|
}
|
|
|
|
static int __init mlx5_ib_init(void)
|
|
{
|
|
int err;
|
|
|
|
xlt_emergency_page = __get_free_page(GFP_KERNEL);
|
|
if (!xlt_emergency_page)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&xlt_emergency_page_mutex);
|
|
|
|
mlx5_ib_event_wq = alloc_ordered_workqueue("mlx5_ib_event_wq", 0);
|
|
if (!mlx5_ib_event_wq) {
|
|
free_page(xlt_emergency_page);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mlx5_ib_odp_init();
|
|
|
|
err = mlx5_register_interface(&mlx5_ib_interface);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit mlx5_ib_cleanup(void)
|
|
{
|
|
mlx5_unregister_interface(&mlx5_ib_interface);
|
|
destroy_workqueue(mlx5_ib_event_wq);
|
|
mutex_destroy(&xlt_emergency_page_mutex);
|
|
free_page(xlt_emergency_page);
|
|
}
|
|
|
|
module_init(mlx5_ib_init);
|
|
module_exit(mlx5_ib_cleanup);
|