mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
![Kamal Heib](/assets/img/avatar_default.png)
Use addrconf_addr_eui48() helper function to set the GUIDs and remove the driver specific version. Link: https://lore.kernel.org/r/20211117090205.96523-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
432 lines
11 KiB
C
432 lines
11 KiB
C
/* This file is part of the Emulex RoCE Device Driver for
|
|
* RoCE (RDMA over Converged Ethernet) adapters.
|
|
* Copyright (C) 2012-2015 Emulex. All rights reserved.
|
|
* EMULEX and SLI are trademarks of Emulex.
|
|
* www.emulex.com
|
|
*
|
|
* This software is available to you under a choice of one of two licenses.
|
|
* You may choose to be licensed under the terms of the GNU General Public
|
|
* License (GPL) Version 2, available from the file COPYING in the main
|
|
* directory of this source tree, or the BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* Contact Information:
|
|
* linux-drivers@emulex.com
|
|
*
|
|
* Emulex
|
|
* 3333 Susan Street
|
|
* Costa Mesa, CA 92626
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/idr.h>
|
|
#include <rdma/ib_verbs.h>
|
|
#include <rdma/ib_user_verbs.h>
|
|
#include <rdma/ib_addr.h>
|
|
#include <rdma/ib_mad.h>
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <net/addrconf.h>
|
|
|
|
#include "ocrdma.h"
|
|
#include "ocrdma_verbs.h"
|
|
#include "ocrdma_ah.h"
|
|
#include "be_roce.h"
|
|
#include "ocrdma_hw.h"
|
|
#include "ocrdma_stats.h"
|
|
#include <rdma/ocrdma-abi.h>
|
|
|
|
MODULE_DESCRIPTION(OCRDMA_ROCE_DRV_DESC " " OCRDMA_ROCE_DRV_VERSION);
|
|
MODULE_AUTHOR("Emulex Corporation");
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
|
|
static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device,
|
|
u32 port_num)
|
|
{
|
|
return IB_LINK_LAYER_ETHERNET;
|
|
}
|
|
|
|
static int ocrdma_port_immutable(struct ib_device *ibdev, u32 port_num,
|
|
struct ib_port_immutable *immutable)
|
|
{
|
|
struct ib_port_attr attr;
|
|
struct ocrdma_dev *dev;
|
|
int err;
|
|
|
|
dev = get_ocrdma_dev(ibdev);
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
|
|
if (ocrdma_is_udp_encap_supported(dev))
|
|
immutable->core_cap_flags |= RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP;
|
|
|
|
err = ib_query_port(ibdev, port_num, &attr);
|
|
if (err)
|
|
return err;
|
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len;
|
|
immutable->gid_tbl_len = attr.gid_tbl_len;
|
|
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void get_dev_fw_str(struct ib_device *device, char *str)
|
|
{
|
|
struct ocrdma_dev *dev = get_ocrdma_dev(device);
|
|
|
|
snprintf(str, IB_FW_VERSION_NAME_MAX, "%s", &dev->attr.fw_ver[0]);
|
|
}
|
|
|
|
/* OCRDMA sysfs interface */
|
|
static ssize_t hw_rev_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ocrdma_dev *dev =
|
|
rdma_device_to_drv_device(device, struct ocrdma_dev, ibdev);
|
|
|
|
return sysfs_emit(buf, "0x%x\n", dev->nic_info.pdev->vendor);
|
|
}
|
|
static DEVICE_ATTR_RO(hw_rev);
|
|
|
|
static ssize_t hca_type_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ocrdma_dev *dev =
|
|
rdma_device_to_drv_device(device, struct ocrdma_dev, ibdev);
|
|
|
|
return sysfs_emit(buf, "%s\n", &dev->model_number[0]);
|
|
}
|
|
static DEVICE_ATTR_RO(hca_type);
|
|
|
|
static struct attribute *ocrdma_attributes[] = {
|
|
&dev_attr_hw_rev.attr,
|
|
&dev_attr_hca_type.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group ocrdma_attr_group = {
|
|
.attrs = ocrdma_attributes,
|
|
};
|
|
|
|
static const struct ib_device_ops ocrdma_dev_ops = {
|
|
.owner = THIS_MODULE,
|
|
.driver_id = RDMA_DRIVER_OCRDMA,
|
|
.uverbs_abi_ver = OCRDMA_ABI_VERSION,
|
|
|
|
.alloc_mr = ocrdma_alloc_mr,
|
|
.alloc_pd = ocrdma_alloc_pd,
|
|
.alloc_ucontext = ocrdma_alloc_ucontext,
|
|
.create_ah = ocrdma_create_ah,
|
|
.create_cq = ocrdma_create_cq,
|
|
.create_qp = ocrdma_create_qp,
|
|
.create_user_ah = ocrdma_create_ah,
|
|
.dealloc_pd = ocrdma_dealloc_pd,
|
|
.dealloc_ucontext = ocrdma_dealloc_ucontext,
|
|
.dereg_mr = ocrdma_dereg_mr,
|
|
.destroy_ah = ocrdma_destroy_ah,
|
|
.destroy_cq = ocrdma_destroy_cq,
|
|
.destroy_qp = ocrdma_destroy_qp,
|
|
.device_group = &ocrdma_attr_group,
|
|
.get_dev_fw_str = get_dev_fw_str,
|
|
.get_dma_mr = ocrdma_get_dma_mr,
|
|
.get_link_layer = ocrdma_link_layer,
|
|
.get_port_immutable = ocrdma_port_immutable,
|
|
.map_mr_sg = ocrdma_map_mr_sg,
|
|
.mmap = ocrdma_mmap,
|
|
.modify_qp = ocrdma_modify_qp,
|
|
.poll_cq = ocrdma_poll_cq,
|
|
.post_recv = ocrdma_post_recv,
|
|
.post_send = ocrdma_post_send,
|
|
.process_mad = ocrdma_process_mad,
|
|
.query_ah = ocrdma_query_ah,
|
|
.query_device = ocrdma_query_device,
|
|
.query_pkey = ocrdma_query_pkey,
|
|
.query_port = ocrdma_query_port,
|
|
.query_qp = ocrdma_query_qp,
|
|
.reg_user_mr = ocrdma_reg_user_mr,
|
|
.req_notify_cq = ocrdma_arm_cq,
|
|
.resize_cq = ocrdma_resize_cq,
|
|
|
|
INIT_RDMA_OBJ_SIZE(ib_ah, ocrdma_ah, ibah),
|
|
INIT_RDMA_OBJ_SIZE(ib_cq, ocrdma_cq, ibcq),
|
|
INIT_RDMA_OBJ_SIZE(ib_pd, ocrdma_pd, ibpd),
|
|
INIT_RDMA_OBJ_SIZE(ib_qp, ocrdma_qp, ibqp),
|
|
INIT_RDMA_OBJ_SIZE(ib_ucontext, ocrdma_ucontext, ibucontext),
|
|
};
|
|
|
|
static const struct ib_device_ops ocrdma_dev_srq_ops = {
|
|
.create_srq = ocrdma_create_srq,
|
|
.destroy_srq = ocrdma_destroy_srq,
|
|
.modify_srq = ocrdma_modify_srq,
|
|
.post_srq_recv = ocrdma_post_srq_recv,
|
|
.query_srq = ocrdma_query_srq,
|
|
|
|
INIT_RDMA_OBJ_SIZE(ib_srq, ocrdma_srq, ibsrq),
|
|
};
|
|
|
|
static int ocrdma_register_device(struct ocrdma_dev *dev)
|
|
{
|
|
int ret;
|
|
|
|
addrconf_addr_eui48((u8 *)&dev->ibdev.node_guid,
|
|
dev->nic_info.mac_addr);
|
|
BUILD_BUG_ON(sizeof(OCRDMA_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
|
|
memcpy(dev->ibdev.node_desc, OCRDMA_NODE_DESC,
|
|
sizeof(OCRDMA_NODE_DESC));
|
|
|
|
dev->ibdev.node_type = RDMA_NODE_IB_CA;
|
|
dev->ibdev.phys_port_cnt = 1;
|
|
dev->ibdev.num_comp_vectors = dev->eq_cnt;
|
|
|
|
/* mandatory to support user space verbs consumer. */
|
|
dev->ibdev.dev.parent = &dev->nic_info.pdev->dev;
|
|
|
|
ib_set_device_ops(&dev->ibdev, &ocrdma_dev_ops);
|
|
|
|
if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R)
|
|
ib_set_device_ops(&dev->ibdev, &ocrdma_dev_srq_ops);
|
|
|
|
ret = ib_device_set_netdev(&dev->ibdev, dev->nic_info.netdev, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dma_set_max_seg_size(&dev->nic_info.pdev->dev, UINT_MAX);
|
|
return ib_register_device(&dev->ibdev, "ocrdma%d",
|
|
&dev->nic_info.pdev->dev);
|
|
}
|
|
|
|
static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
|
|
{
|
|
mutex_init(&dev->dev_lock);
|
|
dev->cq_tbl = kcalloc(OCRDMA_MAX_CQ, sizeof(struct ocrdma_cq *),
|
|
GFP_KERNEL);
|
|
if (!dev->cq_tbl)
|
|
goto alloc_err;
|
|
|
|
if (dev->attr.max_qp) {
|
|
dev->qp_tbl = kcalloc(OCRDMA_MAX_QP,
|
|
sizeof(struct ocrdma_qp *),
|
|
GFP_KERNEL);
|
|
if (!dev->qp_tbl)
|
|
goto alloc_err;
|
|
}
|
|
|
|
dev->stag_arr = kcalloc(OCRDMA_MAX_STAG, sizeof(u64), GFP_KERNEL);
|
|
if (dev->stag_arr == NULL)
|
|
goto alloc_err;
|
|
|
|
ocrdma_alloc_pd_pool(dev);
|
|
|
|
if (!ocrdma_alloc_stats_resources(dev)) {
|
|
pr_err("%s: stats resource allocation failed\n", __func__);
|
|
goto alloc_err;
|
|
}
|
|
|
|
spin_lock_init(&dev->av_tbl.lock);
|
|
spin_lock_init(&dev->flush_q_lock);
|
|
return 0;
|
|
alloc_err:
|
|
pr_err("%s(%d) error.\n", __func__, dev->id);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void ocrdma_free_resources(struct ocrdma_dev *dev)
|
|
{
|
|
ocrdma_release_stats_resources(dev);
|
|
kfree(dev->stag_arr);
|
|
kfree(dev->qp_tbl);
|
|
kfree(dev->cq_tbl);
|
|
}
|
|
|
|
static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
|
|
{
|
|
int status = 0;
|
|
u8 lstate = 0;
|
|
struct ocrdma_dev *dev;
|
|
|
|
dev = ib_alloc_device(ocrdma_dev, ibdev);
|
|
if (!dev) {
|
|
pr_err("Unable to allocate ib device\n");
|
|
return NULL;
|
|
}
|
|
|
|
dev->mbx_cmd = kzalloc(sizeof(struct ocrdma_mqe_emb_cmd), GFP_KERNEL);
|
|
if (!dev->mbx_cmd)
|
|
goto init_err;
|
|
|
|
memcpy(&dev->nic_info, dev_info, sizeof(*dev_info));
|
|
dev->id = PCI_FUNC(dev->nic_info.pdev->devfn);
|
|
status = ocrdma_init_hw(dev);
|
|
if (status)
|
|
goto init_err;
|
|
|
|
status = ocrdma_alloc_resources(dev);
|
|
if (status)
|
|
goto alloc_err;
|
|
|
|
ocrdma_init_service_level(dev);
|
|
status = ocrdma_register_device(dev);
|
|
if (status)
|
|
goto alloc_err;
|
|
|
|
/* Query Link state and update */
|
|
status = ocrdma_mbx_get_link_speed(dev, NULL, &lstate);
|
|
if (!status)
|
|
ocrdma_update_link_state(dev, lstate);
|
|
|
|
/* Init stats */
|
|
ocrdma_add_port_stats(dev);
|
|
/* Interrupt Moderation */
|
|
INIT_DELAYED_WORK(&dev->eqd_work, ocrdma_eqd_set_task);
|
|
schedule_delayed_work(&dev->eqd_work, msecs_to_jiffies(1000));
|
|
|
|
pr_info("%s %s: %s \"%s\" port %d\n",
|
|
dev_name(&dev->nic_info.pdev->dev), hca_name(dev),
|
|
port_speed_string(dev), dev->model_number,
|
|
dev->hba_port_num);
|
|
pr_info("%s ocrdma%d driver loaded successfully\n",
|
|
dev_name(&dev->nic_info.pdev->dev), dev->id);
|
|
return dev;
|
|
|
|
alloc_err:
|
|
ocrdma_free_resources(dev);
|
|
ocrdma_cleanup_hw(dev);
|
|
init_err:
|
|
kfree(dev->mbx_cmd);
|
|
ib_dealloc_device(&dev->ibdev);
|
|
pr_err("%s() leaving. ret=%d\n", __func__, status);
|
|
return NULL;
|
|
}
|
|
|
|
static void ocrdma_remove_free(struct ocrdma_dev *dev)
|
|
{
|
|
|
|
kfree(dev->mbx_cmd);
|
|
ib_dealloc_device(&dev->ibdev);
|
|
}
|
|
|
|
static void ocrdma_remove(struct ocrdma_dev *dev)
|
|
{
|
|
/* first unregister with stack to stop all the active traffic
|
|
* of the registered clients.
|
|
*/
|
|
cancel_delayed_work_sync(&dev->eqd_work);
|
|
ib_unregister_device(&dev->ibdev);
|
|
|
|
ocrdma_rem_port_stats(dev);
|
|
ocrdma_free_resources(dev);
|
|
ocrdma_cleanup_hw(dev);
|
|
ocrdma_remove_free(dev);
|
|
}
|
|
|
|
static int ocrdma_dispatch_port_active(struct ocrdma_dev *dev)
|
|
{
|
|
struct ib_event port_event;
|
|
|
|
port_event.event = IB_EVENT_PORT_ACTIVE;
|
|
port_event.element.port_num = 1;
|
|
port_event.device = &dev->ibdev;
|
|
ib_dispatch_event(&port_event);
|
|
return 0;
|
|
}
|
|
|
|
static int ocrdma_dispatch_port_error(struct ocrdma_dev *dev)
|
|
{
|
|
struct ib_event err_event;
|
|
|
|
err_event.event = IB_EVENT_PORT_ERR;
|
|
err_event.element.port_num = 1;
|
|
err_event.device = &dev->ibdev;
|
|
ib_dispatch_event(&err_event);
|
|
return 0;
|
|
}
|
|
|
|
static void ocrdma_shutdown(struct ocrdma_dev *dev)
|
|
{
|
|
ocrdma_dispatch_port_error(dev);
|
|
ocrdma_remove(dev);
|
|
}
|
|
|
|
/* event handling via NIC driver ensures that all the NIC specific
|
|
* initialization done before RoCE driver notifies
|
|
* event to stack.
|
|
*/
|
|
static void ocrdma_event_handler(struct ocrdma_dev *dev, u32 event)
|
|
{
|
|
switch (event) {
|
|
case BE_DEV_SHUTDOWN:
|
|
ocrdma_shutdown(dev);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void ocrdma_update_link_state(struct ocrdma_dev *dev, u8 lstate)
|
|
{
|
|
if (!(dev->flags & OCRDMA_FLAGS_LINK_STATUS_INIT)) {
|
|
dev->flags |= OCRDMA_FLAGS_LINK_STATUS_INIT;
|
|
if (!lstate)
|
|
return;
|
|
}
|
|
|
|
if (!lstate)
|
|
ocrdma_dispatch_port_error(dev);
|
|
else
|
|
ocrdma_dispatch_port_active(dev);
|
|
}
|
|
|
|
static struct ocrdma_driver ocrdma_drv = {
|
|
.name = "ocrdma_driver",
|
|
.add = ocrdma_add,
|
|
.remove = ocrdma_remove,
|
|
.state_change_handler = ocrdma_event_handler,
|
|
.be_abi_version = OCRDMA_BE_ROCE_ABI_VERSION,
|
|
};
|
|
|
|
static int __init ocrdma_init_module(void)
|
|
{
|
|
int status;
|
|
|
|
ocrdma_init_debugfs();
|
|
|
|
status = be_roce_register_driver(&ocrdma_drv);
|
|
if (status)
|
|
goto err_be_reg;
|
|
|
|
return 0;
|
|
|
|
err_be_reg:
|
|
|
|
return status;
|
|
}
|
|
|
|
static void __exit ocrdma_exit_module(void)
|
|
{
|
|
be_roce_unregister_driver(&ocrdma_drv);
|
|
ocrdma_rem_debugfs();
|
|
}
|
|
|
|
module_init(ocrdma_init_module);
|
|
module_exit(ocrdma_exit_module);
|