![Adit Ranadive](/assets/img/avatar_default.png)
If the interrupt allocation failed we should start freeing the CQ rings
rather than unregistering the netdev notifier.
Fixes: 29c8d9eba5
("IB: Add vmw_pvrdma driver")
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
1210 lines
32 KiB
C
1210 lines
32 KiB
C
/*
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* Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of EITHER the GNU General Public License
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* version 2 as published by the Free Software Foundation or the BSD
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* 2-Clause License. This program is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License version 2 for more details at
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program available in the file COPYING in the main
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* directory of this source tree.
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*
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* The BSD 2-Clause License
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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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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/errno.h>
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#include <linux/inetdevice.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <rdma/ib_addr.h>
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#include <rdma/ib_smi.h>
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#include <rdma/ib_user_verbs.h>
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#include <net/addrconf.h>
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#include "pvrdma.h"
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#define DRV_NAME "vmw_pvrdma"
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#define DRV_VERSION "1.0.0.0-k"
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static DEFINE_MUTEX(pvrdma_device_list_lock);
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static LIST_HEAD(pvrdma_device_list);
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static struct workqueue_struct *event_wq;
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static int pvrdma_add_gid(struct ib_device *ibdev,
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u8 port_num,
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unsigned int index,
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const union ib_gid *gid,
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const struct ib_gid_attr *attr,
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void **context);
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static int pvrdma_del_gid(struct ib_device *ibdev,
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u8 port_num,
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unsigned int index,
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void **context);
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static ssize_t show_hca(struct device *device, struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "VMW_PVRDMA-%s\n", DRV_VERSION);
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}
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static ssize_t show_rev(struct device *device, struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "%d\n", PVRDMA_REV_ID);
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}
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static ssize_t show_board(struct device *device, struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "%d\n", PVRDMA_BOARD_ID);
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}
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static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
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static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
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static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
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static struct device_attribute *pvrdma_class_attributes[] = {
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&dev_attr_hw_rev,
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&dev_attr_hca_type,
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&dev_attr_board_id
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};
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static void pvrdma_get_fw_ver_str(struct ib_device *device, char *str,
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size_t str_len)
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{
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struct pvrdma_dev *dev =
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container_of(device, struct pvrdma_dev, ib_dev);
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snprintf(str, str_len, "%d.%d.%d\n",
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(int) (dev->dsr->caps.fw_ver >> 32),
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(int) (dev->dsr->caps.fw_ver >> 16) & 0xffff,
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(int) dev->dsr->caps.fw_ver & 0xffff);
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}
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static int pvrdma_init_device(struct pvrdma_dev *dev)
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{
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/* Initialize some device related stuff */
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spin_lock_init(&dev->cmd_lock);
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sema_init(&dev->cmd_sema, 1);
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atomic_set(&dev->num_qps, 0);
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atomic_set(&dev->num_cqs, 0);
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atomic_set(&dev->num_pds, 0);
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atomic_set(&dev->num_ahs, 0);
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return 0;
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}
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static int pvrdma_port_immutable(struct ib_device *ibdev, u8 port_num,
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struct ib_port_immutable *immutable)
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{
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struct ib_port_attr attr;
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int err;
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err = pvrdma_query_port(ibdev, port_num, &attr);
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if (err)
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return err;
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immutable->pkey_tbl_len = attr.pkey_tbl_len;
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immutable->gid_tbl_len = attr.gid_tbl_len;
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immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
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immutable->max_mad_size = IB_MGMT_MAD_SIZE;
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return 0;
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}
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static struct net_device *pvrdma_get_netdev(struct ib_device *ibdev,
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u8 port_num)
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{
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struct net_device *netdev;
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struct pvrdma_dev *dev = to_vdev(ibdev);
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if (port_num != 1)
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return NULL;
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rcu_read_lock();
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netdev = dev->netdev;
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if (netdev)
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dev_hold(netdev);
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rcu_read_unlock();
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return netdev;
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}
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static int pvrdma_register_device(struct pvrdma_dev *dev)
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{
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int ret = -1;
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int i = 0;
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strlcpy(dev->ib_dev.name, "vmw_pvrdma%d", IB_DEVICE_NAME_MAX);
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dev->ib_dev.node_guid = dev->dsr->caps.node_guid;
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dev->sys_image_guid = dev->dsr->caps.sys_image_guid;
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dev->flags = 0;
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dev->ib_dev.owner = THIS_MODULE;
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dev->ib_dev.num_comp_vectors = 1;
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dev->ib_dev.dma_device = &dev->pdev->dev;
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dev->ib_dev.uverbs_abi_ver = PVRDMA_UVERBS_ABI_VERSION;
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dev->ib_dev.uverbs_cmd_mask =
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(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
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(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
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(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
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(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
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(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
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(1ull << IB_USER_VERBS_CMD_REG_MR) |
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(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
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(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
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(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
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(1ull << IB_USER_VERBS_CMD_POLL_CQ) |
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(1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
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(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
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(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
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(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
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(1ull << IB_USER_VERBS_CMD_QUERY_QP) |
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(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
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(1ull << IB_USER_VERBS_CMD_POST_SEND) |
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(1ull << IB_USER_VERBS_CMD_POST_RECV) |
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(1ull << IB_USER_VERBS_CMD_CREATE_AH) |
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(1ull << IB_USER_VERBS_CMD_DESTROY_AH);
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dev->ib_dev.node_type = RDMA_NODE_IB_CA;
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dev->ib_dev.phys_port_cnt = dev->dsr->caps.phys_port_cnt;
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dev->ib_dev.query_device = pvrdma_query_device;
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dev->ib_dev.query_port = pvrdma_query_port;
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dev->ib_dev.query_gid = pvrdma_query_gid;
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dev->ib_dev.query_pkey = pvrdma_query_pkey;
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dev->ib_dev.modify_port = pvrdma_modify_port;
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dev->ib_dev.alloc_ucontext = pvrdma_alloc_ucontext;
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dev->ib_dev.dealloc_ucontext = pvrdma_dealloc_ucontext;
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dev->ib_dev.mmap = pvrdma_mmap;
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dev->ib_dev.alloc_pd = pvrdma_alloc_pd;
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dev->ib_dev.dealloc_pd = pvrdma_dealloc_pd;
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dev->ib_dev.create_ah = pvrdma_create_ah;
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dev->ib_dev.destroy_ah = pvrdma_destroy_ah;
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dev->ib_dev.create_qp = pvrdma_create_qp;
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dev->ib_dev.modify_qp = pvrdma_modify_qp;
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dev->ib_dev.query_qp = pvrdma_query_qp;
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dev->ib_dev.destroy_qp = pvrdma_destroy_qp;
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dev->ib_dev.post_send = pvrdma_post_send;
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dev->ib_dev.post_recv = pvrdma_post_recv;
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dev->ib_dev.create_cq = pvrdma_create_cq;
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dev->ib_dev.modify_cq = pvrdma_modify_cq;
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dev->ib_dev.resize_cq = pvrdma_resize_cq;
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dev->ib_dev.destroy_cq = pvrdma_destroy_cq;
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dev->ib_dev.poll_cq = pvrdma_poll_cq;
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dev->ib_dev.req_notify_cq = pvrdma_req_notify_cq;
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dev->ib_dev.get_dma_mr = pvrdma_get_dma_mr;
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dev->ib_dev.reg_user_mr = pvrdma_reg_user_mr;
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dev->ib_dev.dereg_mr = pvrdma_dereg_mr;
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dev->ib_dev.alloc_mr = pvrdma_alloc_mr;
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dev->ib_dev.map_mr_sg = pvrdma_map_mr_sg;
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dev->ib_dev.add_gid = pvrdma_add_gid;
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dev->ib_dev.del_gid = pvrdma_del_gid;
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dev->ib_dev.get_netdev = pvrdma_get_netdev;
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dev->ib_dev.get_port_immutable = pvrdma_port_immutable;
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dev->ib_dev.get_link_layer = pvrdma_port_link_layer;
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dev->ib_dev.get_dev_fw_str = pvrdma_get_fw_ver_str;
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mutex_init(&dev->port_mutex);
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spin_lock_init(&dev->desc_lock);
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dev->cq_tbl = kcalloc(dev->dsr->caps.max_cq, sizeof(void *),
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GFP_KERNEL);
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if (!dev->cq_tbl)
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return ret;
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spin_lock_init(&dev->cq_tbl_lock);
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dev->qp_tbl = kcalloc(dev->dsr->caps.max_qp, sizeof(void *),
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GFP_KERNEL);
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if (!dev->qp_tbl)
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goto err_cq_free;
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spin_lock_init(&dev->qp_tbl_lock);
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ret = ib_register_device(&dev->ib_dev, NULL);
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if (ret)
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goto err_qp_free;
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for (i = 0; i < ARRAY_SIZE(pvrdma_class_attributes); ++i) {
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ret = device_create_file(&dev->ib_dev.dev,
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pvrdma_class_attributes[i]);
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if (ret)
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goto err_class;
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}
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dev->ib_active = true;
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return 0;
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err_class:
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ib_unregister_device(&dev->ib_dev);
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err_qp_free:
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kfree(dev->qp_tbl);
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err_cq_free:
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kfree(dev->cq_tbl);
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return ret;
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}
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static irqreturn_t pvrdma_intr0_handler(int irq, void *dev_id)
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{
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u32 icr = PVRDMA_INTR_CAUSE_RESPONSE;
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struct pvrdma_dev *dev = dev_id;
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dev_dbg(&dev->pdev->dev, "interrupt 0 (response) handler\n");
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if (dev->intr.type != PVRDMA_INTR_TYPE_MSIX) {
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/* Legacy intr */
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icr = pvrdma_read_reg(dev, PVRDMA_REG_ICR);
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if (icr == 0)
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return IRQ_NONE;
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}
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if (icr == PVRDMA_INTR_CAUSE_RESPONSE)
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complete(&dev->cmd_done);
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return IRQ_HANDLED;
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}
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static void pvrdma_qp_event(struct pvrdma_dev *dev, u32 qpn, int type)
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{
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struct pvrdma_qp *qp;
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unsigned long flags;
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spin_lock_irqsave(&dev->qp_tbl_lock, flags);
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qp = dev->qp_tbl[qpn % dev->dsr->caps.max_qp];
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if (qp)
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atomic_inc(&qp->refcnt);
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spin_unlock_irqrestore(&dev->qp_tbl_lock, flags);
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if (qp && qp->ibqp.event_handler) {
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struct ib_qp *ibqp = &qp->ibqp;
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struct ib_event e;
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e.device = ibqp->device;
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e.element.qp = ibqp;
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e.event = type; /* 1:1 mapping for now. */
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ibqp->event_handler(&e, ibqp->qp_context);
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}
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if (qp) {
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atomic_dec(&qp->refcnt);
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if (atomic_read(&qp->refcnt) == 0)
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wake_up(&qp->wait);
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}
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}
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static void pvrdma_cq_event(struct pvrdma_dev *dev, u32 cqn, int type)
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{
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struct pvrdma_cq *cq;
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unsigned long flags;
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spin_lock_irqsave(&dev->cq_tbl_lock, flags);
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cq = dev->cq_tbl[cqn % dev->dsr->caps.max_cq];
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if (cq)
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atomic_inc(&cq->refcnt);
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spin_unlock_irqrestore(&dev->cq_tbl_lock, flags);
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if (cq && cq->ibcq.event_handler) {
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struct ib_cq *ibcq = &cq->ibcq;
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struct ib_event e;
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e.device = ibcq->device;
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e.element.cq = ibcq;
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e.event = type; /* 1:1 mapping for now. */
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ibcq->event_handler(&e, ibcq->cq_context);
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}
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if (cq) {
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atomic_dec(&cq->refcnt);
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if (atomic_read(&cq->refcnt) == 0)
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wake_up(&cq->wait);
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}
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}
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static void pvrdma_dispatch_event(struct pvrdma_dev *dev, int port,
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enum ib_event_type event)
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{
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struct ib_event ib_event;
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memset(&ib_event, 0, sizeof(ib_event));
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ib_event.device = &dev->ib_dev;
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ib_event.element.port_num = port;
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ib_event.event = event;
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ib_dispatch_event(&ib_event);
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}
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static void pvrdma_dev_event(struct pvrdma_dev *dev, u8 port, int type)
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{
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if (port < 1 || port > dev->dsr->caps.phys_port_cnt) {
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dev_warn(&dev->pdev->dev, "event on port %d\n", port);
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return;
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}
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pvrdma_dispatch_event(dev, port, type);
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}
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static inline struct pvrdma_eqe *get_eqe(struct pvrdma_dev *dev, unsigned int i)
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{
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return (struct pvrdma_eqe *)pvrdma_page_dir_get_ptr(
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&dev->async_pdir,
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PAGE_SIZE +
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sizeof(struct pvrdma_eqe) * i);
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}
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|
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static irqreturn_t pvrdma_intr1_handler(int irq, void *dev_id)
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{
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struct pvrdma_dev *dev = dev_id;
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struct pvrdma_ring *ring = &dev->async_ring_state->rx;
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int ring_slots = (dev->dsr->async_ring_pages.num_pages - 1) *
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PAGE_SIZE / sizeof(struct pvrdma_eqe);
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unsigned int head;
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dev_dbg(&dev->pdev->dev, "interrupt 1 (async event) handler\n");
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|
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/*
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* Don't process events until the IB device is registered. Otherwise
|
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* we'll try to ib_dispatch_event() on an invalid device.
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*/
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if (!dev->ib_active)
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return IRQ_HANDLED;
|
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|
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while (pvrdma_idx_ring_has_data(ring, ring_slots, &head) > 0) {
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struct pvrdma_eqe *eqe;
|
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eqe = get_eqe(dev, head);
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|
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switch (eqe->type) {
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case PVRDMA_EVENT_QP_FATAL:
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case PVRDMA_EVENT_QP_REQ_ERR:
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case PVRDMA_EVENT_QP_ACCESS_ERR:
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case PVRDMA_EVENT_COMM_EST:
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case PVRDMA_EVENT_SQ_DRAINED:
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case PVRDMA_EVENT_PATH_MIG:
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case PVRDMA_EVENT_PATH_MIG_ERR:
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case PVRDMA_EVENT_QP_LAST_WQE_REACHED:
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pvrdma_qp_event(dev, eqe->info, eqe->type);
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break;
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case PVRDMA_EVENT_CQ_ERR:
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pvrdma_cq_event(dev, eqe->info, eqe->type);
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break;
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case PVRDMA_EVENT_SRQ_ERR:
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case PVRDMA_EVENT_SRQ_LIMIT_REACHED:
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break;
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|
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case PVRDMA_EVENT_PORT_ACTIVE:
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case PVRDMA_EVENT_PORT_ERR:
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case PVRDMA_EVENT_LID_CHANGE:
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case PVRDMA_EVENT_PKEY_CHANGE:
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case PVRDMA_EVENT_SM_CHANGE:
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case PVRDMA_EVENT_CLIENT_REREGISTER:
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case PVRDMA_EVENT_GID_CHANGE:
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pvrdma_dev_event(dev, eqe->info, eqe->type);
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break;
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case PVRDMA_EVENT_DEVICE_FATAL:
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pvrdma_dev_event(dev, 1, eqe->type);
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break;
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|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
pvrdma_idx_ring_inc(&ring->cons_head, ring_slots);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static inline struct pvrdma_cqne *get_cqne(struct pvrdma_dev *dev,
|
|
unsigned int i)
|
|
{
|
|
return (struct pvrdma_cqne *)pvrdma_page_dir_get_ptr(
|
|
&dev->cq_pdir,
|
|
PAGE_SIZE +
|
|
sizeof(struct pvrdma_cqne) * i);
|
|
}
|
|
|
|
static irqreturn_t pvrdma_intrx_handler(int irq, void *dev_id)
|
|
{
|
|
struct pvrdma_dev *dev = dev_id;
|
|
struct pvrdma_ring *ring = &dev->cq_ring_state->rx;
|
|
int ring_slots = (dev->dsr->cq_ring_pages.num_pages - 1) * PAGE_SIZE /
|
|
sizeof(struct pvrdma_cqne);
|
|
unsigned int head;
|
|
unsigned long flags;
|
|
|
|
dev_dbg(&dev->pdev->dev, "interrupt x (completion) handler\n");
|
|
|
|
while (pvrdma_idx_ring_has_data(ring, ring_slots, &head) > 0) {
|
|
struct pvrdma_cqne *cqne;
|
|
struct pvrdma_cq *cq;
|
|
|
|
cqne = get_cqne(dev, head);
|
|
spin_lock_irqsave(&dev->cq_tbl_lock, flags);
|
|
cq = dev->cq_tbl[cqne->info % dev->dsr->caps.max_cq];
|
|
if (cq)
|
|
atomic_inc(&cq->refcnt);
|
|
spin_unlock_irqrestore(&dev->cq_tbl_lock, flags);
|
|
|
|
if (cq && cq->ibcq.comp_handler)
|
|
cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
|
|
if (cq) {
|
|
atomic_dec(&cq->refcnt);
|
|
if (atomic_read(&cq->refcnt))
|
|
wake_up(&cq->wait);
|
|
}
|
|
pvrdma_idx_ring_inc(&ring->cons_head, ring_slots);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void pvrdma_disable_msi_all(struct pvrdma_dev *dev)
|
|
{
|
|
if (dev->intr.type == PVRDMA_INTR_TYPE_MSIX)
|
|
pci_disable_msix(dev->pdev);
|
|
else if (dev->intr.type == PVRDMA_INTR_TYPE_MSI)
|
|
pci_disable_msi(dev->pdev);
|
|
}
|
|
|
|
static void pvrdma_free_irq(struct pvrdma_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
dev_dbg(&dev->pdev->dev, "freeing interrupts\n");
|
|
|
|
if (dev->intr.type == PVRDMA_INTR_TYPE_MSIX) {
|
|
for (i = 0; i < dev->intr.size; i++) {
|
|
if (dev->intr.enabled[i]) {
|
|
free_irq(dev->intr.msix_entry[i].vector, dev);
|
|
dev->intr.enabled[i] = 0;
|
|
}
|
|
}
|
|
} else if (dev->intr.type == PVRDMA_INTR_TYPE_INTX ||
|
|
dev->intr.type == PVRDMA_INTR_TYPE_MSI) {
|
|
free_irq(dev->pdev->irq, dev);
|
|
}
|
|
}
|
|
|
|
static void pvrdma_enable_intrs(struct pvrdma_dev *dev)
|
|
{
|
|
dev_dbg(&dev->pdev->dev, "enable interrupts\n");
|
|
pvrdma_write_reg(dev, PVRDMA_REG_IMR, 0);
|
|
}
|
|
|
|
static void pvrdma_disable_intrs(struct pvrdma_dev *dev)
|
|
{
|
|
dev_dbg(&dev->pdev->dev, "disable interrupts\n");
|
|
pvrdma_write_reg(dev, PVRDMA_REG_IMR, ~0);
|
|
}
|
|
|
|
static int pvrdma_enable_msix(struct pci_dev *pdev, struct pvrdma_dev *dev)
|
|
{
|
|
int i;
|
|
int ret;
|
|
|
|
for (i = 0; i < PVRDMA_MAX_INTERRUPTS; i++) {
|
|
dev->intr.msix_entry[i].entry = i;
|
|
dev->intr.msix_entry[i].vector = i;
|
|
|
|
switch (i) {
|
|
case 0:
|
|
/* CMD ring handler */
|
|
dev->intr.handler[i] = pvrdma_intr0_handler;
|
|
break;
|
|
case 1:
|
|
/* Async event ring handler */
|
|
dev->intr.handler[i] = pvrdma_intr1_handler;
|
|
break;
|
|
default:
|
|
/* Completion queue handler */
|
|
dev->intr.handler[i] = pvrdma_intrx_handler;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ret = pci_enable_msix(pdev, dev->intr.msix_entry,
|
|
PVRDMA_MAX_INTERRUPTS);
|
|
if (!ret) {
|
|
dev->intr.type = PVRDMA_INTR_TYPE_MSIX;
|
|
dev->intr.size = PVRDMA_MAX_INTERRUPTS;
|
|
} else if (ret > 0) {
|
|
ret = pci_enable_msix(pdev, dev->intr.msix_entry, ret);
|
|
if (!ret) {
|
|
dev->intr.type = PVRDMA_INTR_TYPE_MSIX;
|
|
dev->intr.size = ret;
|
|
} else {
|
|
dev->intr.size = 0;
|
|
}
|
|
}
|
|
|
|
dev_dbg(&pdev->dev, "using interrupt type %d, size %d\n",
|
|
dev->intr.type, dev->intr.size);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int pvrdma_alloc_intrs(struct pvrdma_dev *dev)
|
|
{
|
|
int ret = 0;
|
|
int i;
|
|
|
|
if (pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX) &&
|
|
pvrdma_enable_msix(dev->pdev, dev)) {
|
|
/* Try MSI */
|
|
ret = pci_enable_msi(dev->pdev);
|
|
if (!ret) {
|
|
dev->intr.type = PVRDMA_INTR_TYPE_MSI;
|
|
} else {
|
|
/* Legacy INTR */
|
|
dev->intr.type = PVRDMA_INTR_TYPE_INTX;
|
|
}
|
|
}
|
|
|
|
/* Request First IRQ */
|
|
switch (dev->intr.type) {
|
|
case PVRDMA_INTR_TYPE_INTX:
|
|
case PVRDMA_INTR_TYPE_MSI:
|
|
ret = request_irq(dev->pdev->irq, pvrdma_intr0_handler,
|
|
IRQF_SHARED, DRV_NAME, dev);
|
|
if (ret) {
|
|
dev_err(&dev->pdev->dev,
|
|
"failed to request interrupt\n");
|
|
goto disable_msi;
|
|
}
|
|
break;
|
|
case PVRDMA_INTR_TYPE_MSIX:
|
|
ret = request_irq(dev->intr.msix_entry[0].vector,
|
|
pvrdma_intr0_handler, 0, DRV_NAME, dev);
|
|
if (ret) {
|
|
dev_err(&dev->pdev->dev,
|
|
"failed to request interrupt 0\n");
|
|
goto disable_msi;
|
|
}
|
|
dev->intr.enabled[0] = 1;
|
|
break;
|
|
default:
|
|
/* Not reached */
|
|
break;
|
|
}
|
|
|
|
/* For MSIX: request intr for each vector */
|
|
if (dev->intr.size > 1) {
|
|
ret = request_irq(dev->intr.msix_entry[1].vector,
|
|
pvrdma_intr1_handler, 0, DRV_NAME, dev);
|
|
if (ret) {
|
|
dev_err(&dev->pdev->dev,
|
|
"failed to request interrupt 1\n");
|
|
goto free_irq;
|
|
}
|
|
dev->intr.enabled[1] = 1;
|
|
|
|
for (i = 2; i < dev->intr.size; i++) {
|
|
ret = request_irq(dev->intr.msix_entry[i].vector,
|
|
pvrdma_intrx_handler, 0,
|
|
DRV_NAME, dev);
|
|
if (ret) {
|
|
dev_err(&dev->pdev->dev,
|
|
"failed to request interrupt %d\n", i);
|
|
goto free_irq;
|
|
}
|
|
dev->intr.enabled[i] = 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
free_irq:
|
|
pvrdma_free_irq(dev);
|
|
disable_msi:
|
|
pvrdma_disable_msi_all(dev);
|
|
return ret;
|
|
}
|
|
|
|
static void pvrdma_free_slots(struct pvrdma_dev *dev)
|
|
{
|
|
struct pci_dev *pdev = dev->pdev;
|
|
|
|
if (dev->resp_slot)
|
|
dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->resp_slot,
|
|
dev->dsr->resp_slot_dma);
|
|
if (dev->cmd_slot)
|
|
dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->cmd_slot,
|
|
dev->dsr->cmd_slot_dma);
|
|
}
|
|
|
|
static int pvrdma_add_gid_at_index(struct pvrdma_dev *dev,
|
|
const union ib_gid *gid,
|
|
int index)
|
|
{
|
|
int ret;
|
|
union pvrdma_cmd_req req;
|
|
struct pvrdma_cmd_create_bind *cmd_bind = &req.create_bind;
|
|
|
|
if (!dev->sgid_tbl) {
|
|
dev_warn(&dev->pdev->dev, "sgid table not initialized\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
memset(cmd_bind, 0, sizeof(*cmd_bind));
|
|
cmd_bind->hdr.cmd = PVRDMA_CMD_CREATE_BIND;
|
|
memcpy(cmd_bind->new_gid, gid->raw, 16);
|
|
cmd_bind->mtu = ib_mtu_enum_to_int(IB_MTU_1024);
|
|
cmd_bind->vlan = 0xfff;
|
|
cmd_bind->index = index;
|
|
cmd_bind->gid_type = PVRDMA_GID_TYPE_FLAG_ROCE_V1;
|
|
|
|
ret = pvrdma_cmd_post(dev, &req, NULL, 0);
|
|
if (ret < 0) {
|
|
dev_warn(&dev->pdev->dev,
|
|
"could not create binding, error: %d\n", ret);
|
|
return -EFAULT;
|
|
}
|
|
memcpy(&dev->sgid_tbl[index], gid, sizeof(*gid));
|
|
return 0;
|
|
}
|
|
|
|
static int pvrdma_add_gid(struct ib_device *ibdev,
|
|
u8 port_num,
|
|
unsigned int index,
|
|
const union ib_gid *gid,
|
|
const struct ib_gid_attr *attr,
|
|
void **context)
|
|
{
|
|
struct pvrdma_dev *dev = to_vdev(ibdev);
|
|
|
|
return pvrdma_add_gid_at_index(dev, gid, index);
|
|
}
|
|
|
|
static int pvrdma_del_gid_at_index(struct pvrdma_dev *dev, int index)
|
|
{
|
|
int ret;
|
|
union pvrdma_cmd_req req;
|
|
struct pvrdma_cmd_destroy_bind *cmd_dest = &req.destroy_bind;
|
|
|
|
/* Update sgid table. */
|
|
if (!dev->sgid_tbl) {
|
|
dev_warn(&dev->pdev->dev, "sgid table not initialized\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
memset(cmd_dest, 0, sizeof(*cmd_dest));
|
|
cmd_dest->hdr.cmd = PVRDMA_CMD_DESTROY_BIND;
|
|
memcpy(cmd_dest->dest_gid, &dev->sgid_tbl[index], 16);
|
|
cmd_dest->index = index;
|
|
|
|
ret = pvrdma_cmd_post(dev, &req, NULL, 0);
|
|
if (ret < 0) {
|
|
dev_warn(&dev->pdev->dev,
|
|
"could not destroy binding, error: %d\n", ret);
|
|
return ret;
|
|
}
|
|
memset(&dev->sgid_tbl[index], 0, 16);
|
|
return 0;
|
|
}
|
|
|
|
static int pvrdma_del_gid(struct ib_device *ibdev,
|
|
u8 port_num,
|
|
unsigned int index,
|
|
void **context)
|
|
{
|
|
struct pvrdma_dev *dev = to_vdev(ibdev);
|
|
|
|
dev_dbg(&dev->pdev->dev, "removing gid at index %u from %s",
|
|
index, dev->netdev->name);
|
|
|
|
return pvrdma_del_gid_at_index(dev, index);
|
|
}
|
|
|
|
static void pvrdma_netdevice_event_handle(struct pvrdma_dev *dev,
|
|
unsigned long event)
|
|
{
|
|
switch (event) {
|
|
case NETDEV_REBOOT:
|
|
case NETDEV_DOWN:
|
|
pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ERR);
|
|
break;
|
|
case NETDEV_UP:
|
|
pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ACTIVE);
|
|
break;
|
|
default:
|
|
dev_dbg(&dev->pdev->dev, "ignore netdevice event %ld on %s\n",
|
|
event, dev->ib_dev.name);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void pvrdma_netdevice_event_work(struct work_struct *work)
|
|
{
|
|
struct pvrdma_netdevice_work *netdev_work;
|
|
struct pvrdma_dev *dev;
|
|
|
|
netdev_work = container_of(work, struct pvrdma_netdevice_work, work);
|
|
|
|
mutex_lock(&pvrdma_device_list_lock);
|
|
list_for_each_entry(dev, &pvrdma_device_list, device_link) {
|
|
if (dev->netdev == netdev_work->event_netdev) {
|
|
pvrdma_netdevice_event_handle(dev, netdev_work->event);
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&pvrdma_device_list_lock);
|
|
|
|
kfree(netdev_work);
|
|
}
|
|
|
|
static int pvrdma_netdevice_event(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct net_device *event_netdev = netdev_notifier_info_to_dev(ptr);
|
|
struct pvrdma_netdevice_work *netdev_work;
|
|
|
|
netdev_work = kmalloc(sizeof(*netdev_work), GFP_ATOMIC);
|
|
if (!netdev_work)
|
|
return NOTIFY_BAD;
|
|
|
|
INIT_WORK(&netdev_work->work, pvrdma_netdevice_event_work);
|
|
netdev_work->event_netdev = event_netdev;
|
|
netdev_work->event = event;
|
|
queue_work(event_wq, &netdev_work->work);
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static int pvrdma_pci_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
struct pci_dev *pdev_net;
|
|
struct pvrdma_dev *dev;
|
|
int ret;
|
|
unsigned long start;
|
|
unsigned long len;
|
|
unsigned int version;
|
|
dma_addr_t slot_dma = 0;
|
|
|
|
dev_dbg(&pdev->dev, "initializing driver %s\n", pci_name(pdev));
|
|
|
|
/* Allocate zero-out device */
|
|
dev = (struct pvrdma_dev *)ib_alloc_device(sizeof(*dev));
|
|
if (!dev) {
|
|
dev_err(&pdev->dev, "failed to allocate IB device\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mutex_lock(&pvrdma_device_list_lock);
|
|
list_add(&dev->device_link, &pvrdma_device_list);
|
|
mutex_unlock(&pvrdma_device_list_lock);
|
|
|
|
ret = pvrdma_init_device(dev);
|
|
if (ret)
|
|
goto err_free_device;
|
|
|
|
dev->pdev = pdev;
|
|
pci_set_drvdata(pdev, dev);
|
|
|
|
ret = pci_enable_device(pdev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "cannot enable PCI device\n");
|
|
goto err_free_device;
|
|
}
|
|
|
|
dev_dbg(&pdev->dev, "PCI resource flags BAR0 %#lx\n",
|
|
pci_resource_flags(pdev, 0));
|
|
dev_dbg(&pdev->dev, "PCI resource len %#llx\n",
|
|
(unsigned long long)pci_resource_len(pdev, 0));
|
|
dev_dbg(&pdev->dev, "PCI resource start %#llx\n",
|
|
(unsigned long long)pci_resource_start(pdev, 0));
|
|
dev_dbg(&pdev->dev, "PCI resource flags BAR1 %#lx\n",
|
|
pci_resource_flags(pdev, 1));
|
|
dev_dbg(&pdev->dev, "PCI resource len %#llx\n",
|
|
(unsigned long long)pci_resource_len(pdev, 1));
|
|
dev_dbg(&pdev->dev, "PCI resource start %#llx\n",
|
|
(unsigned long long)pci_resource_start(pdev, 1));
|
|
|
|
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
|
|
!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) {
|
|
dev_err(&pdev->dev, "PCI BAR region not MMIO\n");
|
|
ret = -ENOMEM;
|
|
goto err_free_device;
|
|
}
|
|
|
|
ret = pci_request_regions(pdev, DRV_NAME);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "cannot request PCI resources\n");
|
|
goto err_disable_pdev;
|
|
}
|
|
|
|
/* Enable 64-Bit DMA */
|
|
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) == 0) {
|
|
ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev,
|
|
"pci_set_consistent_dma_mask failed\n");
|
|
goto err_free_resource;
|
|
}
|
|
} else {
|
|
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev,
|
|
"pci_set_dma_mask failed\n");
|
|
goto err_free_resource;
|
|
}
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
/* Map register space */
|
|
start = pci_resource_start(dev->pdev, PVRDMA_PCI_RESOURCE_REG);
|
|
len = pci_resource_len(dev->pdev, PVRDMA_PCI_RESOURCE_REG);
|
|
dev->regs = ioremap(start, len);
|
|
if (!dev->regs) {
|
|
dev_err(&pdev->dev, "register mapping failed\n");
|
|
ret = -ENOMEM;
|
|
goto err_free_resource;
|
|
}
|
|
|
|
/* Setup per-device UAR. */
|
|
dev->driver_uar.index = 0;
|
|
dev->driver_uar.pfn =
|
|
pci_resource_start(dev->pdev, PVRDMA_PCI_RESOURCE_UAR) >>
|
|
PAGE_SHIFT;
|
|
dev->driver_uar.map =
|
|
ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
|
|
if (!dev->driver_uar.map) {
|
|
dev_err(&pdev->dev, "failed to remap UAR pages\n");
|
|
ret = -ENOMEM;
|
|
goto err_unmap_regs;
|
|
}
|
|
|
|
version = pvrdma_read_reg(dev, PVRDMA_REG_VERSION);
|
|
dev_info(&pdev->dev, "device version %d, driver version %d\n",
|
|
version, PVRDMA_VERSION);
|
|
if (version < PVRDMA_VERSION) {
|
|
dev_err(&pdev->dev, "incompatible device version\n");
|
|
goto err_uar_unmap;
|
|
}
|
|
|
|
dev->dsr = dma_alloc_coherent(&pdev->dev, sizeof(*dev->dsr),
|
|
&dev->dsrbase, GFP_KERNEL);
|
|
if (!dev->dsr) {
|
|
dev_err(&pdev->dev, "failed to allocate shared region\n");
|
|
ret = -ENOMEM;
|
|
goto err_uar_unmap;
|
|
}
|
|
|
|
/* Setup the shared region */
|
|
memset(dev->dsr, 0, sizeof(*dev->dsr));
|
|
dev->dsr->driver_version = PVRDMA_VERSION;
|
|
dev->dsr->gos_info.gos_bits = sizeof(void *) == 4 ?
|
|
PVRDMA_GOS_BITS_32 :
|
|
PVRDMA_GOS_BITS_64;
|
|
dev->dsr->gos_info.gos_type = PVRDMA_GOS_TYPE_LINUX;
|
|
dev->dsr->gos_info.gos_ver = 1;
|
|
dev->dsr->uar_pfn = dev->driver_uar.pfn;
|
|
|
|
/* Command slot. */
|
|
dev->cmd_slot = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
|
|
&slot_dma, GFP_KERNEL);
|
|
if (!dev->cmd_slot) {
|
|
ret = -ENOMEM;
|
|
goto err_free_dsr;
|
|
}
|
|
|
|
dev->dsr->cmd_slot_dma = (u64)slot_dma;
|
|
|
|
/* Response slot. */
|
|
dev->resp_slot = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
|
|
&slot_dma, GFP_KERNEL);
|
|
if (!dev->resp_slot) {
|
|
ret = -ENOMEM;
|
|
goto err_free_slots;
|
|
}
|
|
|
|
dev->dsr->resp_slot_dma = (u64)slot_dma;
|
|
|
|
/* Async event ring */
|
|
dev->dsr->async_ring_pages.num_pages = 4;
|
|
ret = pvrdma_page_dir_init(dev, &dev->async_pdir,
|
|
dev->dsr->async_ring_pages.num_pages, true);
|
|
if (ret)
|
|
goto err_free_slots;
|
|
dev->async_ring_state = dev->async_pdir.pages[0];
|
|
dev->dsr->async_ring_pages.pdir_dma = dev->async_pdir.dir_dma;
|
|
|
|
/* CQ notification ring */
|
|
dev->dsr->cq_ring_pages.num_pages = 4;
|
|
ret = pvrdma_page_dir_init(dev, &dev->cq_pdir,
|
|
dev->dsr->cq_ring_pages.num_pages, true);
|
|
if (ret)
|
|
goto err_free_async_ring;
|
|
dev->cq_ring_state = dev->cq_pdir.pages[0];
|
|
dev->dsr->cq_ring_pages.pdir_dma = dev->cq_pdir.dir_dma;
|
|
|
|
/*
|
|
* Write the PA of the shared region to the device. The writes must be
|
|
* ordered such that the high bits are written last. When the writes
|
|
* complete, the device will have filled out the capabilities.
|
|
*/
|
|
|
|
pvrdma_write_reg(dev, PVRDMA_REG_DSRLOW, (u32)dev->dsrbase);
|
|
pvrdma_write_reg(dev, PVRDMA_REG_DSRHIGH,
|
|
(u32)((u64)(dev->dsrbase) >> 32));
|
|
|
|
/* Make sure the write is complete before reading status. */
|
|
mb();
|
|
|
|
/* Currently, the driver only supports RoCE mode. */
|
|
if (dev->dsr->caps.mode != PVRDMA_DEVICE_MODE_ROCE) {
|
|
dev_err(&pdev->dev, "unsupported transport %d\n",
|
|
dev->dsr->caps.mode);
|
|
ret = -EFAULT;
|
|
goto err_free_cq_ring;
|
|
}
|
|
|
|
/* Currently, the driver only supports RoCE V1. */
|
|
if (!(dev->dsr->caps.gid_types & PVRDMA_GID_TYPE_FLAG_ROCE_V1)) {
|
|
dev_err(&pdev->dev, "driver needs RoCE v1 support\n");
|
|
ret = -EFAULT;
|
|
goto err_free_cq_ring;
|
|
}
|
|
|
|
/* Paired vmxnet3 will have same bus, slot. But func will be 0 */
|
|
pdev_net = pci_get_slot(pdev->bus, PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
|
|
if (!pdev_net) {
|
|
dev_err(&pdev->dev, "failed to find paired net device\n");
|
|
ret = -ENODEV;
|
|
goto err_free_cq_ring;
|
|
}
|
|
|
|
if (pdev_net->vendor != PCI_VENDOR_ID_VMWARE ||
|
|
pdev_net->device != PCI_DEVICE_ID_VMWARE_VMXNET3) {
|
|
dev_err(&pdev->dev, "failed to find paired vmxnet3 device\n");
|
|
pci_dev_put(pdev_net);
|
|
ret = -ENODEV;
|
|
goto err_free_cq_ring;
|
|
}
|
|
|
|
dev->netdev = pci_get_drvdata(pdev_net);
|
|
pci_dev_put(pdev_net);
|
|
if (!dev->netdev) {
|
|
dev_err(&pdev->dev, "failed to get vmxnet3 device\n");
|
|
ret = -ENODEV;
|
|
goto err_free_cq_ring;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "paired device to %s\n", dev->netdev->name);
|
|
|
|
/* Interrupt setup */
|
|
ret = pvrdma_alloc_intrs(dev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "failed to allocate interrupts\n");
|
|
ret = -ENOMEM;
|
|
goto err_free_cq_ring;
|
|
}
|
|
|
|
/* Allocate UAR table. */
|
|
ret = pvrdma_uar_table_init(dev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "failed to allocate UAR table\n");
|
|
ret = -ENOMEM;
|
|
goto err_free_intrs;
|
|
}
|
|
|
|
/* Allocate GID table */
|
|
dev->sgid_tbl = kcalloc(dev->dsr->caps.gid_tbl_len,
|
|
sizeof(union ib_gid), GFP_KERNEL);
|
|
if (!dev->sgid_tbl) {
|
|
ret = -ENOMEM;
|
|
goto err_free_uar_table;
|
|
}
|
|
dev_dbg(&pdev->dev, "gid table len %d\n", dev->dsr->caps.gid_tbl_len);
|
|
|
|
pvrdma_enable_intrs(dev);
|
|
|
|
/* Activate pvrdma device */
|
|
pvrdma_write_reg(dev, PVRDMA_REG_CTL, PVRDMA_DEVICE_CTL_ACTIVATE);
|
|
|
|
/* Make sure the write is complete before reading status. */
|
|
mb();
|
|
|
|
/* Check if device was successfully activated */
|
|
ret = pvrdma_read_reg(dev, PVRDMA_REG_ERR);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "failed to activate device\n");
|
|
ret = -EFAULT;
|
|
goto err_disable_intr;
|
|
}
|
|
|
|
/* Register IB device */
|
|
ret = pvrdma_register_device(dev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "failed to register IB device\n");
|
|
goto err_disable_intr;
|
|
}
|
|
|
|
dev->nb_netdev.notifier_call = pvrdma_netdevice_event;
|
|
ret = register_netdevice_notifier(&dev->nb_netdev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "failed to register netdevice events\n");
|
|
goto err_unreg_ibdev;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "attached to device\n");
|
|
return 0;
|
|
|
|
err_unreg_ibdev:
|
|
ib_unregister_device(&dev->ib_dev);
|
|
err_disable_intr:
|
|
pvrdma_disable_intrs(dev);
|
|
kfree(dev->sgid_tbl);
|
|
err_free_uar_table:
|
|
pvrdma_uar_table_cleanup(dev);
|
|
err_free_intrs:
|
|
pvrdma_free_irq(dev);
|
|
pvrdma_disable_msi_all(dev);
|
|
err_free_cq_ring:
|
|
pvrdma_page_dir_cleanup(dev, &dev->cq_pdir);
|
|
err_free_async_ring:
|
|
pvrdma_page_dir_cleanup(dev, &dev->async_pdir);
|
|
err_free_slots:
|
|
pvrdma_free_slots(dev);
|
|
err_free_dsr:
|
|
dma_free_coherent(&pdev->dev, sizeof(*dev->dsr), dev->dsr,
|
|
dev->dsrbase);
|
|
err_uar_unmap:
|
|
iounmap(dev->driver_uar.map);
|
|
err_unmap_regs:
|
|
iounmap(dev->regs);
|
|
err_free_resource:
|
|
pci_release_regions(pdev);
|
|
err_disable_pdev:
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
err_free_device:
|
|
mutex_lock(&pvrdma_device_list_lock);
|
|
list_del(&dev->device_link);
|
|
mutex_unlock(&pvrdma_device_list_lock);
|
|
ib_dealloc_device(&dev->ib_dev);
|
|
return ret;
|
|
}
|
|
|
|
static void pvrdma_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct pvrdma_dev *dev = pci_get_drvdata(pdev);
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
dev_info(&pdev->dev, "detaching from device\n");
|
|
|
|
unregister_netdevice_notifier(&dev->nb_netdev);
|
|
dev->nb_netdev.notifier_call = NULL;
|
|
|
|
flush_workqueue(event_wq);
|
|
|
|
/* Unregister ib device */
|
|
ib_unregister_device(&dev->ib_dev);
|
|
|
|
mutex_lock(&pvrdma_device_list_lock);
|
|
list_del(&dev->device_link);
|
|
mutex_unlock(&pvrdma_device_list_lock);
|
|
|
|
pvrdma_disable_intrs(dev);
|
|
pvrdma_free_irq(dev);
|
|
pvrdma_disable_msi_all(dev);
|
|
|
|
/* Deactivate pvrdma device */
|
|
pvrdma_write_reg(dev, PVRDMA_REG_CTL, PVRDMA_DEVICE_CTL_RESET);
|
|
pvrdma_page_dir_cleanup(dev, &dev->cq_pdir);
|
|
pvrdma_page_dir_cleanup(dev, &dev->async_pdir);
|
|
pvrdma_free_slots(dev);
|
|
|
|
iounmap(dev->regs);
|
|
kfree(dev->sgid_tbl);
|
|
kfree(dev->cq_tbl);
|
|
kfree(dev->qp_tbl);
|
|
pvrdma_uar_table_cleanup(dev);
|
|
iounmap(dev->driver_uar.map);
|
|
|
|
ib_dealloc_device(&dev->ib_dev);
|
|
|
|
/* Free pci resources */
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
static struct pci_device_id pvrdma_pci_table[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_VMWARE, PCI_DEVICE_ID_VMWARE_PVRDMA), },
|
|
{ 0 },
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, pvrdma_pci_table);
|
|
|
|
static struct pci_driver pvrdma_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = pvrdma_pci_table,
|
|
.probe = pvrdma_pci_probe,
|
|
.remove = pvrdma_pci_remove,
|
|
};
|
|
|
|
static int __init pvrdma_init(void)
|
|
{
|
|
int err;
|
|
|
|
event_wq = alloc_ordered_workqueue("pvrdma_event_wq", WQ_MEM_RECLAIM);
|
|
if (!event_wq)
|
|
return -ENOMEM;
|
|
|
|
err = pci_register_driver(&pvrdma_driver);
|
|
if (err)
|
|
destroy_workqueue(event_wq);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit pvrdma_cleanup(void)
|
|
{
|
|
pci_unregister_driver(&pvrdma_driver);
|
|
|
|
destroy_workqueue(event_wq);
|
|
}
|
|
|
|
module_init(pvrdma_init);
|
|
module_exit(pvrdma_cleanup);
|
|
|
|
MODULE_AUTHOR("VMware, Inc");
|
|
MODULE_DESCRIPTION("VMware Paravirtual RDMA driver");
|
|
MODULE_VERSION(DRV_VERSION);
|
|
MODULE_LICENSE("Dual BSD/GPL");
|