2017-02-10 11:19:33 +00:00
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/*
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* Broadcom NetXtreme-E RoCE driver.
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*
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* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
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* Broadcom refers to Broadcom Limited and/or its subsidiaries.
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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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* BSD license below:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Description: Main component of the bnxt_re driver
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*/
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/ethtool.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/rculist.h>
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#include <linux/spinlock.h>
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#include <linux/pci.h>
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#include <net/dcbnl.h>
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#include <net/ipv6.h>
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#include <net/addrconf.h>
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#include <linux/if_ether.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_umem.h>
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#include <rdma/ib_addr.h>
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#include "bnxt_ulp.h"
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#include "roce_hsi.h"
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#include "qplib_res.h"
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#include "qplib_sp.h"
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#include "qplib_fp.h"
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#include "qplib_rcfw.h"
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#include "bnxt_re.h"
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#include "ib_verbs.h"
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#include <rdma/bnxt_re-abi.h>
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#include "bnxt.h"
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2017-08-02 08:46:19 +00:00
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#include "hw_counters.h"
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2017-02-10 11:19:33 +00:00
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static char version[] =
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BNXT_RE_DESC " v" ROCE_DRV_MODULE_VERSION "\n";
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MODULE_AUTHOR("Eddie Wai <eddie.wai@broadcom.com>");
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MODULE_DESCRIPTION(BNXT_RE_DESC " Driver");
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MODULE_LICENSE("Dual BSD/GPL");
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/* globals */
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static struct list_head bnxt_re_dev_list = LIST_HEAD_INIT(bnxt_re_dev_list);
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/* Mutex to protect the list of bnxt_re devices added */
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static DEFINE_MUTEX(bnxt_re_dev_lock);
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static struct workqueue_struct *bnxt_re_wq;
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/* for handling bnxt_en callbacks later */
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static void bnxt_re_stop(void *p)
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{
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}
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static void bnxt_re_start(void *p)
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{
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}
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static void bnxt_re_sriov_config(void *p, int num_vfs)
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{
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}
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static struct bnxt_ulp_ops bnxt_re_ulp_ops = {
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.ulp_async_notifier = NULL,
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.ulp_stop = bnxt_re_stop,
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.ulp_start = bnxt_re_start,
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.ulp_sriov_config = bnxt_re_sriov_config
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};
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/* RoCE -> Net driver */
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/* Driver registration routines used to let the networking driver (bnxt_en)
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* to know that the RoCE driver is now installed
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*/
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static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev, bool lock_wait)
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{
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struct bnxt_en_dev *en_dev;
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int rc;
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if (!rdev)
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return -EINVAL;
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en_dev = rdev->en_dev;
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/* Acquire rtnl lock if it is not invokded from netdev event */
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if (lock_wait)
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rtnl_lock();
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rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev,
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BNXT_ROCE_ULP);
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if (lock_wait)
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rtnl_unlock();
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return rc;
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}
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static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev)
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{
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struct bnxt_en_dev *en_dev;
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int rc = 0;
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if (!rdev)
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return -EINVAL;
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en_dev = rdev->en_dev;
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rtnl_lock();
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rc = en_dev->en_ops->bnxt_register_device(en_dev, BNXT_ROCE_ULP,
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&bnxt_re_ulp_ops, rdev);
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rtnl_unlock();
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return rc;
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}
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static int bnxt_re_free_msix(struct bnxt_re_dev *rdev, bool lock_wait)
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{
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struct bnxt_en_dev *en_dev;
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int rc;
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if (!rdev)
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return -EINVAL;
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en_dev = rdev->en_dev;
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if (lock_wait)
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rtnl_lock();
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rc = en_dev->en_ops->bnxt_free_msix(rdev->en_dev, BNXT_ROCE_ULP);
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if (lock_wait)
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rtnl_unlock();
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return rc;
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}
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static int bnxt_re_request_msix(struct bnxt_re_dev *rdev)
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{
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2017-08-02 08:46:18 +00:00
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int rc = 0, num_msix_want = BNXT_RE_MAX_MSIX, num_msix_got;
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2017-02-10 11:19:33 +00:00
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struct bnxt_en_dev *en_dev;
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if (!rdev)
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return -EINVAL;
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en_dev = rdev->en_dev;
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2017-08-02 08:46:18 +00:00
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num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus());
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2017-02-10 11:19:33 +00:00
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rtnl_lock();
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num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev, BNXT_ROCE_ULP,
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rdev->msix_entries,
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num_msix_want);
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if (num_msix_got < BNXT_RE_MIN_MSIX) {
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rc = -EINVAL;
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goto done;
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}
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if (num_msix_got != num_msix_want) {
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dev_warn(rdev_to_dev(rdev),
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"Requested %d MSI-X vectors, got %d\n",
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num_msix_want, num_msix_got);
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}
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rdev->num_msix = num_msix_got;
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done:
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rtnl_unlock();
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return rc;
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}
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static void bnxt_re_init_hwrm_hdr(struct bnxt_re_dev *rdev, struct input *hdr,
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u16 opcd, u16 crid, u16 trid)
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{
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hdr->req_type = cpu_to_le16(opcd);
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hdr->cmpl_ring = cpu_to_le16(crid);
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hdr->target_id = cpu_to_le16(trid);
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}
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static void bnxt_re_fill_fw_msg(struct bnxt_fw_msg *fw_msg, void *msg,
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int msg_len, void *resp, int resp_max_len,
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int timeout)
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{
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fw_msg->msg = msg;
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fw_msg->msg_len = msg_len;
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fw_msg->resp = resp;
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fw_msg->resp_max_len = resp_max_len;
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fw_msg->timeout = timeout;
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}
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static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, u16 fw_ring_id,
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bool lock_wait)
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{
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struct bnxt_en_dev *en_dev = rdev->en_dev;
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struct hwrm_ring_free_input req = {0};
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struct hwrm_ring_free_output resp;
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struct bnxt_fw_msg fw_msg;
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bool do_unlock = false;
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int rc = -EINVAL;
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if (!en_dev)
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return rc;
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memset(&fw_msg, 0, sizeof(fw_msg));
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if (lock_wait) {
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rtnl_lock();
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do_unlock = true;
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}
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bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_FREE, -1, -1);
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2017-02-15 00:30:03 +00:00
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req.ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL;
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2017-02-10 11:19:33 +00:00
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req.ring_id = cpu_to_le16(fw_ring_id);
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bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
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sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
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rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg);
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if (rc)
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dev_err(rdev_to_dev(rdev),
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"Failed to free HW ring:%d :%#x", req.ring_id, rc);
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if (do_unlock)
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rtnl_unlock();
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return rc;
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}
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static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, dma_addr_t *dma_arr,
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int pages, int type, u32 ring_mask,
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u32 map_index, u16 *fw_ring_id)
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{
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struct bnxt_en_dev *en_dev = rdev->en_dev;
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struct hwrm_ring_alloc_input req = {0};
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struct hwrm_ring_alloc_output resp;
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struct bnxt_fw_msg fw_msg;
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int rc = -EINVAL;
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if (!en_dev)
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return rc;
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memset(&fw_msg, 0, sizeof(fw_msg));
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rtnl_lock();
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bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_ALLOC, -1, -1);
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req.enables = 0;
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req.page_tbl_addr = cpu_to_le64(dma_arr[0]);
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if (pages > 1) {
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/* Page size is in log2 units */
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req.page_size = BNXT_PAGE_SHIFT;
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req.page_tbl_depth = 1;
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}
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req.fbo = 0;
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/* Association of ring index with doorbell index and MSIX number */
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req.logical_id = cpu_to_le16(map_index);
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req.length = cpu_to_le32(ring_mask + 1);
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2017-02-15 00:30:03 +00:00
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req.ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL;
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2017-02-10 11:19:33 +00:00
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req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
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bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
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sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
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rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg);
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if (!rc)
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*fw_ring_id = le16_to_cpu(resp.ring_id);
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rtnl_unlock();
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return rc;
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}
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static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev,
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u32 fw_stats_ctx_id, bool lock_wait)
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{
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struct bnxt_en_dev *en_dev = rdev->en_dev;
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struct hwrm_stat_ctx_free_input req = {0};
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struct bnxt_fw_msg fw_msg;
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bool do_unlock = false;
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int rc = -EINVAL;
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if (!en_dev)
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return rc;
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memset(&fw_msg, 0, sizeof(fw_msg));
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if (lock_wait) {
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rtnl_lock();
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do_unlock = true;
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}
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bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_FREE, -1, -1);
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req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id);
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bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&req,
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sizeof(req), DFLT_HWRM_CMD_TIMEOUT);
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rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg);
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if (rc)
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dev_err(rdev_to_dev(rdev),
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"Failed to free HW stats context %#x", rc);
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if (do_unlock)
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rtnl_unlock();
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return rc;
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}
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static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev,
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dma_addr_t dma_map,
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u32 *fw_stats_ctx_id)
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{
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struct hwrm_stat_ctx_alloc_output resp = {0};
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struct hwrm_stat_ctx_alloc_input req = {0};
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struct bnxt_en_dev *en_dev = rdev->en_dev;
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struct bnxt_fw_msg fw_msg;
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int rc = -EINVAL;
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*fw_stats_ctx_id = INVALID_STATS_CTX_ID;
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if (!en_dev)
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return rc;
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memset(&fw_msg, 0, sizeof(fw_msg));
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rtnl_lock();
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bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_ALLOC, -1, -1);
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req.update_period_ms = cpu_to_le32(1000);
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req.stats_dma_addr = cpu_to_le64(dma_map);
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2017-06-29 19:28:14 +00:00
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|
|
req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE;
|
2017-02-10 11:19:33 +00:00
|
|
|
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
|
|
|
|
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
|
|
|
|
rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg);
|
|
|
|
if (!rc)
|
|
|
|
*fw_stats_ctx_id = le32_to_cpu(resp.stat_ctx_id);
|
|
|
|
|
|
|
|
rtnl_unlock();
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Device */
|
|
|
|
|
|
|
|
static bool is_bnxt_re_dev(struct net_device *netdev)
|
|
|
|
{
|
|
|
|
struct ethtool_drvinfo drvinfo;
|
|
|
|
|
|
|
|
if (netdev->ethtool_ops && netdev->ethtool_ops->get_drvinfo) {
|
|
|
|
memset(&drvinfo, 0, sizeof(drvinfo));
|
|
|
|
netdev->ethtool_ops->get_drvinfo(netdev, &drvinfo);
|
|
|
|
|
|
|
|
if (strcmp(drvinfo.driver, "bnxt_en"))
|
|
|
|
return false;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev)
|
|
|
|
{
|
|
|
|
struct bnxt_re_dev *rdev;
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(rdev, &bnxt_re_dev_list, list) {
|
|
|
|
if (rdev->netdev == netdev) {
|
|
|
|
rcu_read_unlock();
|
|
|
|
return rdev;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_dev_unprobe(struct net_device *netdev,
|
|
|
|
struct bnxt_en_dev *en_dev)
|
|
|
|
{
|
|
|
|
dev_put(netdev);
|
|
|
|
module_put(en_dev->pdev->driver->driver.owner);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev)
|
|
|
|
{
|
|
|
|
struct bnxt *bp = netdev_priv(netdev);
|
|
|
|
struct bnxt_en_dev *en_dev;
|
|
|
|
struct pci_dev *pdev;
|
|
|
|
|
|
|
|
/* Call bnxt_en's RoCE probe via indirect API */
|
|
|
|
if (!bp->ulp_probe)
|
|
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
|
|
|
|
en_dev = bp->ulp_probe(netdev);
|
|
|
|
if (IS_ERR(en_dev))
|
|
|
|
return en_dev;
|
|
|
|
|
|
|
|
pdev = en_dev->pdev;
|
|
|
|
if (!pdev)
|
|
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
|
|
|
|
if (!(en_dev->flags & BNXT_EN_FLAG_ROCE_CAP)) {
|
|
|
|
dev_dbg(&pdev->dev,
|
|
|
|
"%s: probe error: RoCE is not supported on this device",
|
|
|
|
ROCE_DRV_MODULE_NAME);
|
|
|
|
return ERR_PTR(-ENODEV);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Bump net device reference count */
|
|
|
|
if (!try_module_get(pdev->driver->driver.owner))
|
|
|
|
return ERR_PTR(-ENODEV);
|
|
|
|
|
|
|
|
dev_hold(netdev);
|
|
|
|
|
|
|
|
return en_dev;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_unregister_ib(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
ib_unregister_device(&rdev->ibdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
struct ib_device *ibdev = &rdev->ibdev;
|
|
|
|
|
|
|
|
/* ib device init */
|
|
|
|
ibdev->owner = THIS_MODULE;
|
|
|
|
ibdev->node_type = RDMA_NODE_IB_CA;
|
|
|
|
strlcpy(ibdev->name, "bnxt_re%d", IB_DEVICE_NAME_MAX);
|
|
|
|
strlcpy(ibdev->node_desc, BNXT_RE_DESC " HCA",
|
|
|
|
strlen(BNXT_RE_DESC) + 5);
|
|
|
|
ibdev->phys_port_cnt = 1;
|
|
|
|
|
|
|
|
bnxt_qplib_get_guid(rdev->netdev->dev_addr, (u8 *)&ibdev->node_guid);
|
|
|
|
|
|
|
|
ibdev->num_comp_vectors = 1;
|
2017-02-25 21:45:43 +00:00
|
|
|
ibdev->dev.parent = &rdev->en_dev->pdev->dev;
|
2017-02-10 11:19:33 +00:00
|
|
|
ibdev->local_dma_lkey = BNXT_QPLIB_RSVD_LKEY;
|
|
|
|
|
|
|
|
/* User space */
|
|
|
|
ibdev->uverbs_abi_ver = BNXT_RE_ABI_VERSION;
|
|
|
|
ibdev->uverbs_cmd_mask =
|
|
|
|
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_REG_MR) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_REREG_MR) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_QP) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_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_AH) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_MODIFY_AH) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_QUERY_AH) |
|
|
|
|
(1ull << IB_USER_VERBS_CMD_DESTROY_AH);
|
|
|
|
/* POLL_CQ and REQ_NOTIFY_CQ is directly handled in libbnxt_re */
|
|
|
|
|
|
|
|
/* Kernel verbs */
|
|
|
|
ibdev->query_device = bnxt_re_query_device;
|
|
|
|
ibdev->modify_device = bnxt_re_modify_device;
|
|
|
|
|
|
|
|
ibdev->query_port = bnxt_re_query_port;
|
|
|
|
ibdev->get_port_immutable = bnxt_re_get_port_immutable;
|
|
|
|
ibdev->query_pkey = bnxt_re_query_pkey;
|
|
|
|
ibdev->query_gid = bnxt_re_query_gid;
|
|
|
|
ibdev->get_netdev = bnxt_re_get_netdev;
|
|
|
|
ibdev->add_gid = bnxt_re_add_gid;
|
|
|
|
ibdev->del_gid = bnxt_re_del_gid;
|
|
|
|
ibdev->get_link_layer = bnxt_re_get_link_layer;
|
|
|
|
|
|
|
|
ibdev->alloc_pd = bnxt_re_alloc_pd;
|
|
|
|
ibdev->dealloc_pd = bnxt_re_dealloc_pd;
|
|
|
|
|
|
|
|
ibdev->create_ah = bnxt_re_create_ah;
|
|
|
|
ibdev->modify_ah = bnxt_re_modify_ah;
|
|
|
|
ibdev->query_ah = bnxt_re_query_ah;
|
|
|
|
ibdev->destroy_ah = bnxt_re_destroy_ah;
|
|
|
|
|
|
|
|
ibdev->create_qp = bnxt_re_create_qp;
|
|
|
|
ibdev->modify_qp = bnxt_re_modify_qp;
|
|
|
|
ibdev->query_qp = bnxt_re_query_qp;
|
|
|
|
ibdev->destroy_qp = bnxt_re_destroy_qp;
|
|
|
|
|
|
|
|
ibdev->post_send = bnxt_re_post_send;
|
|
|
|
ibdev->post_recv = bnxt_re_post_recv;
|
|
|
|
|
|
|
|
ibdev->create_cq = bnxt_re_create_cq;
|
|
|
|
ibdev->destroy_cq = bnxt_re_destroy_cq;
|
|
|
|
ibdev->poll_cq = bnxt_re_poll_cq;
|
|
|
|
ibdev->req_notify_cq = bnxt_re_req_notify_cq;
|
|
|
|
|
|
|
|
ibdev->get_dma_mr = bnxt_re_get_dma_mr;
|
|
|
|
ibdev->dereg_mr = bnxt_re_dereg_mr;
|
|
|
|
ibdev->alloc_mr = bnxt_re_alloc_mr;
|
|
|
|
ibdev->map_mr_sg = bnxt_re_map_mr_sg;
|
|
|
|
|
|
|
|
ibdev->reg_user_mr = bnxt_re_reg_user_mr;
|
|
|
|
ibdev->alloc_ucontext = bnxt_re_alloc_ucontext;
|
|
|
|
ibdev->dealloc_ucontext = bnxt_re_dealloc_ucontext;
|
|
|
|
ibdev->mmap = bnxt_re_mmap;
|
2017-08-02 08:46:19 +00:00
|
|
|
ibdev->get_hw_stats = bnxt_re_ib_get_hw_stats;
|
|
|
|
ibdev->alloc_hw_stats = bnxt_re_ib_alloc_hw_stats;
|
2017-02-10 11:19:33 +00:00
|
|
|
|
|
|
|
return ib_register_device(ibdev, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t show_rev(struct device *device, struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct bnxt_re_dev *rdev = to_bnxt_re_dev(device, ibdev.dev);
|
|
|
|
|
|
|
|
return scnprintf(buf, PAGE_SIZE, "0x%x\n", rdev->en_dev->pdev->vendor);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct bnxt_re_dev *rdev = to_bnxt_re_dev(device, ibdev.dev);
|
|
|
|
|
|
|
|
return scnprintf(buf, PAGE_SIZE, "%s\n", rdev->dev_attr.fw_ver);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t show_hca(struct device *device, struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct bnxt_re_dev *rdev = to_bnxt_re_dev(device, ibdev.dev);
|
|
|
|
|
|
|
|
return scnprintf(buf, PAGE_SIZE, "%s\n", rdev->ibdev.node_desc);
|
|
|
|
}
|
|
|
|
|
|
|
|
static DEVICE_ATTR(hw_rev, 0444, show_rev, NULL);
|
|
|
|
static DEVICE_ATTR(fw_rev, 0444, show_fw_ver, NULL);
|
|
|
|
static DEVICE_ATTR(hca_type, 0444, show_hca, NULL);
|
|
|
|
|
|
|
|
static struct device_attribute *bnxt_re_attributes[] = {
|
|
|
|
&dev_attr_hw_rev,
|
|
|
|
&dev_attr_fw_rev,
|
|
|
|
&dev_attr_hca_type
|
|
|
|
};
|
|
|
|
|
|
|
|
static void bnxt_re_dev_remove(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
dev_put(rdev->netdev);
|
|
|
|
rdev->netdev = NULL;
|
|
|
|
|
|
|
|
mutex_lock(&bnxt_re_dev_lock);
|
|
|
|
list_del_rcu(&rdev->list);
|
|
|
|
mutex_unlock(&bnxt_re_dev_lock);
|
|
|
|
|
|
|
|
synchronize_rcu();
|
|
|
|
flush_workqueue(bnxt_re_wq);
|
|
|
|
|
|
|
|
ib_dealloc_device(&rdev->ibdev);
|
|
|
|
/* rdev is gone */
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev,
|
|
|
|
struct bnxt_en_dev *en_dev)
|
|
|
|
{
|
|
|
|
struct bnxt_re_dev *rdev;
|
|
|
|
|
|
|
|
/* Allocate bnxt_re_dev instance here */
|
|
|
|
rdev = (struct bnxt_re_dev *)ib_alloc_device(sizeof(*rdev));
|
|
|
|
if (!rdev) {
|
|
|
|
dev_err(NULL, "%s: bnxt_re_dev allocation failure!",
|
|
|
|
ROCE_DRV_MODULE_NAME);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
/* Default values */
|
|
|
|
rdev->netdev = netdev;
|
|
|
|
dev_hold(rdev->netdev);
|
|
|
|
rdev->en_dev = en_dev;
|
|
|
|
rdev->id = rdev->en_dev->pdev->devfn;
|
|
|
|
INIT_LIST_HEAD(&rdev->qp_list);
|
|
|
|
mutex_init(&rdev->qp_lock);
|
|
|
|
atomic_set(&rdev->qp_count, 0);
|
|
|
|
atomic_set(&rdev->cq_count, 0);
|
|
|
|
atomic_set(&rdev->srq_count, 0);
|
|
|
|
atomic_set(&rdev->mr_count, 0);
|
|
|
|
atomic_set(&rdev->mw_count, 0);
|
|
|
|
rdev->cosq[0] = 0xFFFF;
|
|
|
|
rdev->cosq[1] = 0xFFFF;
|
|
|
|
|
|
|
|
mutex_lock(&bnxt_re_dev_lock);
|
|
|
|
list_add_tail_rcu(&rdev->list, &bnxt_re_dev_list);
|
|
|
|
mutex_unlock(&bnxt_re_dev_lock);
|
|
|
|
return rdev;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_aeq_handler(struct bnxt_qplib_rcfw *rcfw,
|
|
|
|
struct creq_func_event *aeqe)
|
|
|
|
{
|
|
|
|
switch (aeqe->event) {
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_TX_WQE_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_TX_DATA_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_RX_WQE_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_RX_DATA_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_CQ_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_TQM_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_CFCQ_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_CFCS_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_CFCC_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_CFCM_ERROR:
|
|
|
|
break;
|
|
|
|
case CREQ_FUNC_EVENT_EVENT_TIM_ERROR:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_cqn_handler(struct bnxt_qplib_nq *nq,
|
|
|
|
struct bnxt_qplib_cq *handle)
|
|
|
|
{
|
|
|
|
struct bnxt_re_cq *cq = container_of(handle, struct bnxt_re_cq,
|
|
|
|
qplib_cq);
|
|
|
|
|
|
|
|
if (!cq) {
|
|
|
|
dev_err(NULL, "%s: CQ is NULL, CQN not handled",
|
|
|
|
ROCE_DRV_MODULE_NAME);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
if (cq->ib_cq.comp_handler) {
|
|
|
|
/* Lock comp_handler? */
|
|
|
|
(*cq->ib_cq.comp_handler)(&cq->ib_cq, cq->ib_cq.cq_context);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_cleanup_res(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
2017-08-02 08:46:18 +00:00
|
|
|
int i;
|
|
|
|
|
|
|
|
if (rdev->nq[0].hwq.max_elements) {
|
|
|
|
for (i = 1; i < rdev->num_msix; i++)
|
|
|
|
bnxt_qplib_disable_nq(&rdev->nq[i - 1]);
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
|
|
|
|
if (rdev->qplib_res.rcfw)
|
|
|
|
bnxt_qplib_cleanup_res(&rdev->qplib_res);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_init_res(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
2017-08-02 08:46:18 +00:00
|
|
|
int rc = 0, i;
|
2017-02-10 11:19:33 +00:00
|
|
|
|
|
|
|
bnxt_qplib_init_res(&rdev->qplib_res);
|
|
|
|
|
2017-08-02 08:46:18 +00:00
|
|
|
for (i = 1; i < rdev->num_msix ; i++) {
|
|
|
|
rc = bnxt_qplib_enable_nq(rdev->en_dev->pdev, &rdev->nq[i - 1],
|
|
|
|
i - 1, rdev->msix_entries[i].vector,
|
|
|
|
rdev->msix_entries[i].db_offset,
|
|
|
|
&bnxt_re_cqn_handler, NULL);
|
2017-02-10 11:19:33 +00:00
|
|
|
|
2017-08-02 08:46:18 +00:00
|
|
|
if (rc) {
|
|
|
|
dev_err(rdev_to_dev(rdev),
|
|
|
|
"Failed to enable NQ with rc = 0x%x", rc);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
|
|
return rc;
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
|
2017-08-02 08:46:18 +00:00
|
|
|
static void bnxt_re_free_nq_res(struct bnxt_re_dev *rdev, bool lock_wait)
|
|
|
|
{
|
|
|
|
int i;
|
2017-02-10 11:19:33 +00:00
|
|
|
|
2017-08-02 08:46:18 +00:00
|
|
|
for (i = 0; i < rdev->num_msix - 1; i++) {
|
|
|
|
bnxt_re_net_ring_free(rdev, rdev->nq[i].ring_id, lock_wait);
|
|
|
|
bnxt_qplib_free_nq(&rdev->nq[i]);
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_free_res(struct bnxt_re_dev *rdev, bool lock_wait)
|
|
|
|
{
|
2017-08-02 08:46:18 +00:00
|
|
|
bnxt_re_free_nq_res(rdev, lock_wait);
|
|
|
|
|
2017-02-10 11:19:33 +00:00
|
|
|
if (rdev->qplib_res.dpi_tbl.max) {
|
|
|
|
bnxt_qplib_dealloc_dpi(&rdev->qplib_res,
|
|
|
|
&rdev->qplib_res.dpi_tbl,
|
|
|
|
&rdev->dpi_privileged);
|
|
|
|
}
|
|
|
|
if (rdev->qplib_res.rcfw) {
|
|
|
|
bnxt_qplib_free_res(&rdev->qplib_res);
|
|
|
|
rdev->qplib_res.rcfw = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_alloc_res(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
2017-08-02 08:46:18 +00:00
|
|
|
int rc = 0, i;
|
2017-02-10 11:19:33 +00:00
|
|
|
|
|
|
|
/* Configure and allocate resources for qplib */
|
|
|
|
rdev->qplib_res.rcfw = &rdev->rcfw;
|
|
|
|
rc = bnxt_qplib_get_dev_attr(&rdev->rcfw, &rdev->dev_attr);
|
|
|
|
if (rc)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
rc = bnxt_qplib_alloc_res(&rdev->qplib_res, rdev->en_dev->pdev,
|
|
|
|
rdev->netdev, &rdev->dev_attr);
|
|
|
|
if (rc)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
rc = bnxt_qplib_alloc_dpi(&rdev->qplib_res.dpi_tbl,
|
|
|
|
&rdev->dpi_privileged,
|
|
|
|
rdev);
|
|
|
|
if (rc)
|
2017-08-02 08:46:18 +00:00
|
|
|
goto dealloc_res;
|
|
|
|
|
|
|
|
for (i = 0; i < rdev->num_msix - 1; i++) {
|
|
|
|
rdev->nq[i].hwq.max_elements = BNXT_RE_MAX_CQ_COUNT +
|
|
|
|
BNXT_RE_MAX_SRQC_COUNT + 2;
|
|
|
|
rc = bnxt_qplib_alloc_nq(rdev->en_dev->pdev, &rdev->nq[i]);
|
|
|
|
if (rc) {
|
|
|
|
dev_err(rdev_to_dev(rdev), "Alloc Failed NQ%d rc:%#x",
|
|
|
|
i, rc);
|
|
|
|
goto dealloc_dpi;
|
|
|
|
}
|
|
|
|
rc = bnxt_re_net_ring_alloc
|
|
|
|
(rdev, rdev->nq[i].hwq.pbl[PBL_LVL_0].pg_map_arr,
|
|
|
|
rdev->nq[i].hwq.pbl[rdev->nq[i].hwq.level].pg_count,
|
|
|
|
HWRM_RING_ALLOC_CMPL,
|
|
|
|
BNXT_QPLIB_NQE_MAX_CNT - 1,
|
|
|
|
rdev->msix_entries[i + 1].ring_idx,
|
|
|
|
&rdev->nq[i].ring_id);
|
|
|
|
if (rc) {
|
|
|
|
dev_err(rdev_to_dev(rdev),
|
|
|
|
"Failed to allocate NQ fw id with rc = 0x%x",
|
|
|
|
rc);
|
|
|
|
goto free_nq;
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
free_nq:
|
2017-08-02 08:46:18 +00:00
|
|
|
for (i = 0; i < rdev->num_msix - 1; i++)
|
|
|
|
bnxt_qplib_free_nq(&rdev->nq[i]);
|
|
|
|
dealloc_dpi:
|
|
|
|
bnxt_qplib_dealloc_dpi(&rdev->qplib_res,
|
|
|
|
&rdev->qplib_res.dpi_tbl,
|
|
|
|
&rdev->dpi_privileged);
|
|
|
|
dealloc_res:
|
|
|
|
bnxt_qplib_free_res(&rdev->qplib_res);
|
|
|
|
|
2017-02-10 11:19:33 +00:00
|
|
|
fail:
|
|
|
|
rdev->qplib_res.rcfw = NULL;
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_dispatch_event(struct ib_device *ibdev, struct ib_qp *qp,
|
|
|
|
u8 port_num, enum ib_event_type event)
|
|
|
|
{
|
|
|
|
struct ib_event ib_event;
|
|
|
|
|
|
|
|
ib_event.device = ibdev;
|
2018-10-08 10:28:01 +00:00
|
|
|
if (qp) {
|
2017-02-10 11:19:33 +00:00
|
|
|
ib_event.element.qp = qp;
|
2018-10-08 10:28:01 +00:00
|
|
|
ib_event.event = event;
|
|
|
|
if (qp->event_handler)
|
|
|
|
qp->event_handler(&ib_event, qp->qp_context);
|
|
|
|
|
|
|
|
} else {
|
2017-02-10 11:19:33 +00:00
|
|
|
ib_event.element.port_num = port_num;
|
2018-10-08 10:28:01 +00:00
|
|
|
ib_event.event = event;
|
|
|
|
ib_dispatch_event(&ib_event);
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#define HWRM_QUEUE_PRI2COS_QCFG_INPUT_FLAGS_IVLAN 0x02
|
|
|
|
static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir,
|
|
|
|
u64 *cid_map)
|
|
|
|
{
|
|
|
|
struct hwrm_queue_pri2cos_qcfg_input req = {0};
|
|
|
|
struct bnxt *bp = netdev_priv(rdev->netdev);
|
|
|
|
struct hwrm_queue_pri2cos_qcfg_output resp;
|
|
|
|
struct bnxt_en_dev *en_dev = rdev->en_dev;
|
|
|
|
struct bnxt_fw_msg fw_msg;
|
|
|
|
u32 flags = 0;
|
|
|
|
u8 *qcfgmap, *tmp_map;
|
|
|
|
int rc = 0, i;
|
|
|
|
|
|
|
|
if (!cid_map)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
memset(&fw_msg, 0, sizeof(fw_msg));
|
|
|
|
bnxt_re_init_hwrm_hdr(rdev, (void *)&req,
|
|
|
|
HWRM_QUEUE_PRI2COS_QCFG, -1, -1);
|
|
|
|
flags |= (dir & 0x01);
|
|
|
|
flags |= HWRM_QUEUE_PRI2COS_QCFG_INPUT_FLAGS_IVLAN;
|
|
|
|
req.flags = cpu_to_le32(flags);
|
|
|
|
req.port_id = bp->pf.port_id;
|
|
|
|
|
|
|
|
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
|
|
|
|
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
|
|
|
|
rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg);
|
|
|
|
if (rc)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (resp.queue_cfg_info) {
|
|
|
|
dev_warn(rdev_to_dev(rdev),
|
|
|
|
"Asymmetric cos queue configuration detected");
|
|
|
|
dev_warn(rdev_to_dev(rdev),
|
|
|
|
" on device, QoS may not be fully functional\n");
|
|
|
|
}
|
|
|
|
qcfgmap = &resp.pri0_cos_queue_id;
|
|
|
|
tmp_map = (u8 *)cid_map;
|
|
|
|
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
|
|
|
|
tmp_map[i] = qcfgmap[i];
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool bnxt_re_is_qp1_or_shadow_qp(struct bnxt_re_dev *rdev,
|
|
|
|
struct bnxt_re_qp *qp)
|
|
|
|
{
|
|
|
|
return (qp->ib_qp.qp_type == IB_QPT_GSI) || (qp == rdev->qp1_sqp);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_dev_stop(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
int mask = IB_QP_STATE;
|
|
|
|
struct ib_qp_attr qp_attr;
|
|
|
|
struct bnxt_re_qp *qp;
|
|
|
|
|
|
|
|
qp_attr.qp_state = IB_QPS_ERR;
|
|
|
|
mutex_lock(&rdev->qp_lock);
|
|
|
|
list_for_each_entry(qp, &rdev->qp_list, list) {
|
|
|
|
/* Modify the state of all QPs except QP1/Shadow QP */
|
|
|
|
if (!bnxt_re_is_qp1_or_shadow_qp(rdev, qp)) {
|
|
|
|
if (qp->qplib_qp.state !=
|
|
|
|
CMDQ_MODIFY_QP_NEW_STATE_RESET &&
|
|
|
|
qp->qplib_qp.state !=
|
|
|
|
CMDQ_MODIFY_QP_NEW_STATE_ERR) {
|
|
|
|
bnxt_re_dispatch_event(&rdev->ibdev, &qp->ib_qp,
|
|
|
|
1, IB_EVENT_QP_FATAL);
|
|
|
|
bnxt_re_modify_qp(&qp->ib_qp, &qp_attr, mask,
|
|
|
|
NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
mutex_unlock(&rdev->qp_lock);
|
|
|
|
}
|
|
|
|
|
2017-06-29 19:28:10 +00:00
|
|
|
static int bnxt_re_update_gid(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
struct bnxt_qplib_sgid_tbl *sgid_tbl = &rdev->qplib_res.sgid_tbl;
|
|
|
|
struct bnxt_qplib_gid gid;
|
|
|
|
u16 gid_idx, index;
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
if (!test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!sgid_tbl) {
|
|
|
|
dev_err(rdev_to_dev(rdev), "QPLIB: SGID table not allocated");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (index = 0; index < sgid_tbl->active; index++) {
|
|
|
|
gid_idx = sgid_tbl->hw_id[index];
|
|
|
|
|
|
|
|
if (!memcmp(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero,
|
|
|
|
sizeof(bnxt_qplib_gid_zero)))
|
|
|
|
continue;
|
|
|
|
/* need to modify the VLAN enable setting of non VLAN GID only
|
|
|
|
* as setting is done for VLAN GID while adding GID
|
|
|
|
*/
|
|
|
|
if (sgid_tbl->vlan[index])
|
|
|
|
continue;
|
|
|
|
|
|
|
|
memcpy(&gid, &sgid_tbl->tbl[index], sizeof(gid));
|
|
|
|
|
|
|
|
rc = bnxt_qplib_update_sgid(sgid_tbl, &gid, gid_idx,
|
|
|
|
rdev->qplib_res.netdev->dev_addr);
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2017-02-10 11:19:33 +00:00
|
|
|
static u32 bnxt_re_get_priority_mask(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
u32 prio_map = 0, tmp_map = 0;
|
|
|
|
struct net_device *netdev;
|
|
|
|
struct dcb_app app;
|
|
|
|
|
|
|
|
netdev = rdev->netdev;
|
|
|
|
|
|
|
|
memset(&app, 0, sizeof(app));
|
|
|
|
app.selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE;
|
|
|
|
app.protocol = ETH_P_IBOE;
|
|
|
|
tmp_map = dcb_ieee_getapp_mask(netdev, &app);
|
|
|
|
prio_map = tmp_map;
|
|
|
|
|
|
|
|
app.selector = IEEE_8021QAZ_APP_SEL_DGRAM;
|
|
|
|
app.protocol = ROCE_V2_UDP_DPORT;
|
|
|
|
tmp_map = dcb_ieee_getapp_mask(netdev, &app);
|
|
|
|
prio_map |= tmp_map;
|
|
|
|
|
|
|
|
return prio_map;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_parse_cid_map(u8 prio_map, u8 *cid_map, u16 *cosq)
|
|
|
|
{
|
|
|
|
u16 prio;
|
|
|
|
u8 id;
|
|
|
|
|
|
|
|
for (prio = 0, id = 0; prio < 8; prio++) {
|
|
|
|
if (prio_map & (1 << prio)) {
|
|
|
|
cosq[id] = cid_map[prio];
|
|
|
|
id++;
|
|
|
|
if (id == 2) /* Max 2 tcs supported */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
u8 prio_map = 0;
|
|
|
|
u64 cid_map;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
/* Get priority for roce */
|
2017-06-29 19:28:10 +00:00
|
|
|
prio_map = bnxt_re_get_priority_mask(rdev);
|
2017-02-10 11:19:33 +00:00
|
|
|
|
|
|
|
if (prio_map == rdev->cur_prio_map)
|
|
|
|
return 0;
|
|
|
|
rdev->cur_prio_map = prio_map;
|
|
|
|
/* Get cosq id for this priority */
|
|
|
|
rc = bnxt_re_query_hwrm_pri2cos(rdev, 0, &cid_map);
|
|
|
|
if (rc) {
|
|
|
|
dev_warn(rdev_to_dev(rdev), "no cos for p_mask %x\n", prio_map);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
/* Parse CoS IDs for app priority */
|
|
|
|
bnxt_re_parse_cid_map(prio_map, (u8 *)&cid_map, rdev->cosq);
|
|
|
|
|
|
|
|
/* Config BONO. */
|
|
|
|
rc = bnxt_qplib_map_tc2cos(&rdev->qplib_res, rdev->cosq);
|
|
|
|
if (rc) {
|
|
|
|
dev_warn(rdev_to_dev(rdev), "no tc for cos{%x, %x}\n",
|
|
|
|
rdev->cosq[0], rdev->cosq[1]);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2017-06-29 19:28:10 +00:00
|
|
|
/* Actual priorities are not programmed as they are already
|
|
|
|
* done by L2 driver; just enable or disable priority vlan tagging
|
|
|
|
*/
|
|
|
|
if ((prio_map == 0 && rdev->qplib_res.prio) ||
|
|
|
|
(prio_map != 0 && !rdev->qplib_res.prio)) {
|
|
|
|
rdev->qplib_res.prio = prio_map ? true : false;
|
|
|
|
|
|
|
|
bnxt_re_update_gid(rdev);
|
|
|
|
}
|
|
|
|
|
2017-02-10 11:19:33 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev, bool lock_wait)
|
|
|
|
{
|
|
|
|
int i, rc;
|
|
|
|
|
|
|
|
if (test_and_clear_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) {
|
|
|
|
for (i = 0; i < ARRAY_SIZE(bnxt_re_attributes); i++)
|
|
|
|
device_remove_file(&rdev->ibdev.dev,
|
|
|
|
bnxt_re_attributes[i]);
|
|
|
|
/* Cleanup ib dev */
|
|
|
|
bnxt_re_unregister_ib(rdev);
|
|
|
|
}
|
|
|
|
if (test_and_clear_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags))
|
|
|
|
cancel_delayed_work(&rdev->worker);
|
|
|
|
|
|
|
|
bnxt_re_cleanup_res(rdev);
|
|
|
|
bnxt_re_free_res(rdev, lock_wait);
|
|
|
|
|
|
|
|
if (test_and_clear_bit(BNXT_RE_FLAG_RCFW_CHANNEL_EN, &rdev->flags)) {
|
|
|
|
rc = bnxt_qplib_deinit_rcfw(&rdev->rcfw);
|
|
|
|
if (rc)
|
|
|
|
dev_warn(rdev_to_dev(rdev),
|
|
|
|
"Failed to deinitialize RCFW: %#x", rc);
|
|
|
|
bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id,
|
|
|
|
lock_wait);
|
|
|
|
bnxt_qplib_free_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx);
|
|
|
|
bnxt_qplib_disable_rcfw_channel(&rdev->rcfw);
|
|
|
|
bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id, lock_wait);
|
|
|
|
bnxt_qplib_free_rcfw_channel(&rdev->rcfw);
|
|
|
|
}
|
|
|
|
if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) {
|
|
|
|
rc = bnxt_re_free_msix(rdev, lock_wait);
|
|
|
|
if (rc)
|
|
|
|
dev_warn(rdev_to_dev(rdev),
|
|
|
|
"Failed to free MSI-X vectors: %#x", rc);
|
|
|
|
}
|
|
|
|
if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) {
|
|
|
|
rc = bnxt_re_unregister_netdev(rdev, lock_wait);
|
|
|
|
if (rc)
|
|
|
|
dev_warn(rdev_to_dev(rdev),
|
|
|
|
"Failed to unregister with netdev: %#x", rc);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
u32 i;
|
|
|
|
|
|
|
|
rdev->qplib_ctx.qpc_count = BNXT_RE_MAX_QPC_COUNT;
|
|
|
|
rdev->qplib_ctx.mrw_count = BNXT_RE_MAX_MRW_COUNT;
|
|
|
|
rdev->qplib_ctx.srqc_count = BNXT_RE_MAX_SRQC_COUNT;
|
|
|
|
rdev->qplib_ctx.cq_count = BNXT_RE_MAX_CQ_COUNT;
|
|
|
|
for (i = 0; i < MAX_TQM_ALLOC_REQ; i++)
|
|
|
|
rdev->qplib_ctx.tqm_count[i] =
|
|
|
|
rdev->dev_attr.tqm_alloc_reqs[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
/* worker thread for polling periodic events. Now used for QoS programming*/
|
|
|
|
static void bnxt_re_worker(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct bnxt_re_dev *rdev = container_of(work, struct bnxt_re_dev,
|
|
|
|
worker.work);
|
|
|
|
|
|
|
|
bnxt_re_setup_qos(rdev);
|
|
|
|
schedule_delayed_work(&rdev->worker, msecs_to_jiffies(30000));
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
int i, j, rc;
|
|
|
|
|
|
|
|
/* Registered a new RoCE device instance to netdev */
|
|
|
|
rc = bnxt_re_register_netdev(rdev);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to register with netedev: %#x\n", rc);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
set_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags);
|
|
|
|
|
|
|
|
rc = bnxt_re_request_msix(rdev);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to get MSI-X vectors: %#x\n", rc);
|
|
|
|
rc = -EINVAL;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
set_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags);
|
|
|
|
|
|
|
|
/* Establish RCFW Communication Channel to initialize the context
|
|
|
|
* memory for the function and all child VFs
|
|
|
|
*/
|
2017-06-29 19:28:15 +00:00
|
|
|
rc = bnxt_qplib_alloc_rcfw_channel(rdev->en_dev->pdev, &rdev->rcfw,
|
|
|
|
BNXT_RE_MAX_QPC_COUNT);
|
2017-02-10 11:19:33 +00:00
|
|
|
if (rc)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
rc = bnxt_re_net_ring_alloc
|
|
|
|
(rdev, rdev->rcfw.creq.pbl[PBL_LVL_0].pg_map_arr,
|
|
|
|
rdev->rcfw.creq.pbl[rdev->rcfw.creq.level].pg_count,
|
|
|
|
HWRM_RING_ALLOC_CMPL, BNXT_QPLIB_CREQE_MAX_CNT - 1,
|
|
|
|
rdev->msix_entries[BNXT_RE_AEQ_IDX].ring_idx,
|
|
|
|
&rdev->rcfw.creq_ring_id);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to allocate CREQ: %#x\n", rc);
|
|
|
|
goto free_rcfw;
|
|
|
|
}
|
|
|
|
rc = bnxt_qplib_enable_rcfw_channel
|
|
|
|
(rdev->en_dev->pdev, &rdev->rcfw,
|
|
|
|
rdev->msix_entries[BNXT_RE_AEQ_IDX].vector,
|
|
|
|
rdev->msix_entries[BNXT_RE_AEQ_IDX].db_offset,
|
|
|
|
0, &bnxt_re_aeq_handler);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to enable RCFW channel: %#x\n", rc);
|
|
|
|
goto free_ring;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = bnxt_qplib_get_dev_attr(&rdev->rcfw, &rdev->dev_attr);
|
|
|
|
if (rc)
|
|
|
|
goto disable_rcfw;
|
|
|
|
bnxt_re_set_resource_limits(rdev);
|
|
|
|
|
|
|
|
rc = bnxt_qplib_alloc_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx, 0);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to allocate QPLIB context: %#x\n", rc);
|
|
|
|
goto disable_rcfw;
|
|
|
|
}
|
|
|
|
rc = bnxt_re_net_stats_ctx_alloc(rdev,
|
|
|
|
rdev->qplib_ctx.stats.dma_map,
|
|
|
|
&rdev->qplib_ctx.stats.fw_id);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to allocate stats context: %#x\n", rc);
|
|
|
|
goto free_ctx;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = bnxt_qplib_init_rcfw(&rdev->rcfw, &rdev->qplib_ctx, 0);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to initialize RCFW: %#x\n", rc);
|
|
|
|
goto free_sctx;
|
|
|
|
}
|
|
|
|
set_bit(BNXT_RE_FLAG_RCFW_CHANNEL_EN, &rdev->flags);
|
|
|
|
|
|
|
|
/* Resources based on the 'new' device caps */
|
|
|
|
rc = bnxt_re_alloc_res(rdev);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to allocate resources: %#x\n", rc);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
rc = bnxt_re_init_res(rdev);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to initialize resources: %#x\n", rc);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = bnxt_re_setup_qos(rdev);
|
|
|
|
if (rc)
|
|
|
|
pr_info("RoCE priority not yet configured\n");
|
|
|
|
|
|
|
|
INIT_DELAYED_WORK(&rdev->worker, bnxt_re_worker);
|
|
|
|
set_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags);
|
|
|
|
schedule_delayed_work(&rdev->worker, msecs_to_jiffies(30000));
|
|
|
|
|
|
|
|
/* Register ib dev */
|
|
|
|
rc = bnxt_re_register_ib(rdev);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to register with IB: %#x\n", rc);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
dev_info(rdev_to_dev(rdev), "Device registered successfully");
|
|
|
|
for (i = 0; i < ARRAY_SIZE(bnxt_re_attributes); i++) {
|
|
|
|
rc = device_create_file(&rdev->ibdev.dev,
|
|
|
|
bnxt_re_attributes[i]);
|
|
|
|
if (rc) {
|
|
|
|
dev_err(rdev_to_dev(rdev),
|
|
|
|
"Failed to create IB sysfs: %#x", rc);
|
|
|
|
/* Must clean up all created device files */
|
|
|
|
for (j = 0; j < i; j++)
|
|
|
|
device_remove_file(&rdev->ibdev.dev,
|
|
|
|
bnxt_re_attributes[j]);
|
|
|
|
bnxt_re_unregister_ib(rdev);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
set_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags);
|
2017-08-31 03:57:33 +00:00
|
|
|
ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed,
|
|
|
|
&rdev->active_width);
|
2017-02-10 11:19:33 +00:00
|
|
|
bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_PORT_ACTIVE);
|
|
|
|
bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_GID_CHANGE);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
free_sctx:
|
|
|
|
bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id, true);
|
|
|
|
free_ctx:
|
|
|
|
bnxt_qplib_free_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx);
|
|
|
|
disable_rcfw:
|
|
|
|
bnxt_qplib_disable_rcfw_channel(&rdev->rcfw);
|
|
|
|
free_ring:
|
|
|
|
bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id, true);
|
|
|
|
free_rcfw:
|
|
|
|
bnxt_qplib_free_rcfw_channel(&rdev->rcfw);
|
|
|
|
fail:
|
|
|
|
bnxt_re_ib_unreg(rdev, true);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_dev_unreg(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
struct bnxt_en_dev *en_dev = rdev->en_dev;
|
|
|
|
struct net_device *netdev = rdev->netdev;
|
|
|
|
|
|
|
|
bnxt_re_dev_remove(rdev);
|
|
|
|
|
|
|
|
if (netdev)
|
|
|
|
bnxt_re_dev_unprobe(netdev, en_dev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int bnxt_re_dev_reg(struct bnxt_re_dev **rdev, struct net_device *netdev)
|
|
|
|
{
|
|
|
|
struct bnxt_en_dev *en_dev;
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
if (!is_bnxt_re_dev(netdev))
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
en_dev = bnxt_re_dev_probe(netdev);
|
|
|
|
if (IS_ERR(en_dev)) {
|
|
|
|
if (en_dev != ERR_PTR(-ENODEV))
|
|
|
|
pr_err("%s: Failed to probe\n", ROCE_DRV_MODULE_NAME);
|
|
|
|
rc = PTR_ERR(en_dev);
|
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
*rdev = bnxt_re_dev_add(netdev, en_dev);
|
|
|
|
if (!*rdev) {
|
|
|
|
rc = -ENOMEM;
|
|
|
|
bnxt_re_dev_unprobe(netdev, en_dev);
|
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
exit:
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_remove_one(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
pci_dev_put(rdev->en_dev->pdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Handle all deferred netevents tasks */
|
|
|
|
static void bnxt_re_task(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct bnxt_re_work *re_work;
|
|
|
|
struct bnxt_re_dev *rdev;
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
re_work = container_of(work, struct bnxt_re_work, work);
|
|
|
|
rdev = re_work->rdev;
|
|
|
|
|
|
|
|
if (re_work->event != NETDEV_REGISTER &&
|
|
|
|
!test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags))
|
|
|
|
return;
|
|
|
|
|
|
|
|
switch (re_work->event) {
|
|
|
|
case NETDEV_REGISTER:
|
|
|
|
rc = bnxt_re_ib_reg(rdev);
|
2018-02-26 09:51:39 +00:00
|
|
|
if (rc) {
|
2017-02-10 11:19:33 +00:00
|
|
|
dev_err(rdev_to_dev(rdev),
|
|
|
|
"Failed to register with IB: %#x", rc);
|
2018-02-26 09:51:39 +00:00
|
|
|
bnxt_re_remove_one(rdev);
|
|
|
|
bnxt_re_dev_unreg(rdev);
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
break;
|
|
|
|
case NETDEV_UP:
|
|
|
|
bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1,
|
|
|
|
IB_EVENT_PORT_ACTIVE);
|
|
|
|
break;
|
|
|
|
case NETDEV_DOWN:
|
|
|
|
bnxt_re_dev_stop(rdev);
|
|
|
|
break;
|
|
|
|
case NETDEV_CHANGE:
|
|
|
|
if (!netif_carrier_ok(rdev->netdev))
|
|
|
|
bnxt_re_dev_stop(rdev);
|
|
|
|
else if (netif_carrier_ok(rdev->netdev))
|
|
|
|
bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1,
|
|
|
|
IB_EVENT_PORT_ACTIVE);
|
2017-08-31 03:57:33 +00:00
|
|
|
ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed,
|
|
|
|
&rdev->active_width);
|
2017-02-10 11:19:33 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2017-08-31 03:57:32 +00:00
|
|
|
smp_mb__before_atomic();
|
|
|
|
clear_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags);
|
2017-02-10 11:19:33 +00:00
|
|
|
kfree(re_work);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void bnxt_re_init_one(struct bnxt_re_dev *rdev)
|
|
|
|
{
|
|
|
|
pci_dev_get(rdev->en_dev->pdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* "Notifier chain callback can be invoked for the same chain from
|
|
|
|
* different CPUs at the same time".
|
|
|
|
*
|
|
|
|
* For cases when the netdev is already present, our call to the
|
|
|
|
* register_netdevice_notifier() will actually get the rtnl_lock()
|
|
|
|
* before sending NETDEV_REGISTER and (if up) NETDEV_UP
|
|
|
|
* events.
|
|
|
|
*
|
|
|
|
* But for cases when the netdev is not already present, the notifier
|
|
|
|
* chain is subjected to be invoked from different CPUs simultaneously.
|
|
|
|
*
|
|
|
|
* This is protected by the netdev_mutex.
|
|
|
|
*/
|
|
|
|
static int bnxt_re_netdev_event(struct notifier_block *notifier,
|
|
|
|
unsigned long event, void *ptr)
|
|
|
|
{
|
|
|
|
struct net_device *real_dev, *netdev = netdev_notifier_info_to_dev(ptr);
|
|
|
|
struct bnxt_re_work *re_work;
|
|
|
|
struct bnxt_re_dev *rdev;
|
|
|
|
int rc = 0;
|
|
|
|
bool sch_work = false;
|
|
|
|
|
|
|
|
real_dev = rdma_vlan_dev_real_dev(netdev);
|
|
|
|
if (!real_dev)
|
|
|
|
real_dev = netdev;
|
|
|
|
|
|
|
|
rdev = bnxt_re_from_netdev(real_dev);
|
|
|
|
if (!rdev && event != NETDEV_REGISTER)
|
|
|
|
goto exit;
|
|
|
|
if (real_dev != netdev)
|
|
|
|
goto exit;
|
|
|
|
|
|
|
|
switch (event) {
|
|
|
|
case NETDEV_REGISTER:
|
|
|
|
if (rdev)
|
|
|
|
break;
|
|
|
|
rc = bnxt_re_dev_reg(&rdev, real_dev);
|
|
|
|
if (rc == -ENODEV)
|
|
|
|
break;
|
|
|
|
if (rc) {
|
|
|
|
pr_err("Failed to register with the device %s: %#x\n",
|
|
|
|
real_dev->name, rc);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
bnxt_re_init_one(rdev);
|
|
|
|
sch_work = true;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case NETDEV_UNREGISTER:
|
2017-08-31 03:57:32 +00:00
|
|
|
/* netdev notifier will call NETDEV_UNREGISTER again later since
|
|
|
|
* we are still holding the reference to the netdev
|
|
|
|
*/
|
|
|
|
if (test_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags))
|
|
|
|
goto exit;
|
2017-02-10 11:19:33 +00:00
|
|
|
bnxt_re_ib_unreg(rdev, false);
|
|
|
|
bnxt_re_remove_one(rdev);
|
|
|
|
bnxt_re_dev_unreg(rdev);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
sch_work = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (sch_work) {
|
|
|
|
/* Allocate for the deferred task */
|
|
|
|
re_work = kzalloc(sizeof(*re_work), GFP_ATOMIC);
|
|
|
|
if (re_work) {
|
|
|
|
re_work->rdev = rdev;
|
|
|
|
re_work->event = event;
|
|
|
|
re_work->vlan_dev = (real_dev == netdev ?
|
|
|
|
NULL : netdev);
|
|
|
|
INIT_WORK(&re_work->work, bnxt_re_task);
|
2017-08-31 03:57:32 +00:00
|
|
|
set_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags);
|
2017-02-10 11:19:33 +00:00
|
|
|
queue_work(bnxt_re_wq, &re_work->work);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
exit:
|
|
|
|
return NOTIFY_DONE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct notifier_block bnxt_re_netdev_notifier = {
|
|
|
|
.notifier_call = bnxt_re_netdev_event
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init bnxt_re_mod_init(void)
|
|
|
|
{
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
pr_info("%s: %s", ROCE_DRV_MODULE_NAME, version);
|
|
|
|
|
|
|
|
bnxt_re_wq = create_singlethread_workqueue("bnxt_re");
|
|
|
|
if (!bnxt_re_wq)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&bnxt_re_dev_list);
|
|
|
|
|
|
|
|
rc = register_netdevice_notifier(&bnxt_re_netdev_notifier);
|
|
|
|
if (rc) {
|
|
|
|
pr_err("%s: Cannot register to netdevice_notifier",
|
|
|
|
ROCE_DRV_MODULE_NAME);
|
|
|
|
goto err_netdev;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_netdev:
|
|
|
|
destroy_workqueue(bnxt_re_wq);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit bnxt_re_mod_exit(void)
|
|
|
|
{
|
2017-08-31 03:57:31 +00:00
|
|
|
struct bnxt_re_dev *rdev;
|
|
|
|
LIST_HEAD(to_be_deleted);
|
|
|
|
|
|
|
|
mutex_lock(&bnxt_re_dev_lock);
|
|
|
|
/* Free all adapter allocated resources */
|
|
|
|
if (!list_empty(&bnxt_re_dev_list))
|
|
|
|
list_splice_init(&bnxt_re_dev_list, &to_be_deleted);
|
|
|
|
mutex_unlock(&bnxt_re_dev_lock);
|
|
|
|
|
|
|
|
list_for_each_entry(rdev, &to_be_deleted, list) {
|
|
|
|
dev_info(rdev_to_dev(rdev), "Unregistering Device");
|
2018-02-16 05:20:12 +00:00
|
|
|
/*
|
|
|
|
* Flush out any scheduled tasks before destroying the
|
|
|
|
* resources
|
|
|
|
*/
|
|
|
|
flush_workqueue(bnxt_re_wq);
|
2017-08-31 03:57:31 +00:00
|
|
|
bnxt_re_dev_stop(rdev);
|
|
|
|
bnxt_re_ib_unreg(rdev, true);
|
|
|
|
bnxt_re_remove_one(rdev);
|
|
|
|
bnxt_re_dev_unreg(rdev);
|
|
|
|
}
|
2017-02-10 11:19:33 +00:00
|
|
|
unregister_netdevice_notifier(&bnxt_re_netdev_notifier);
|
|
|
|
if (bnxt_re_wq)
|
|
|
|
destroy_workqueue(bnxt_re_wq);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(bnxt_re_mod_init);
|
|
|
|
module_exit(bnxt_re_mod_exit);
|