mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 09:26:23 +07:00
ccc67ef50b
This patch adds the error recovery process in the qede driver. The process includes a partial/customized driver unload and load, which allows it to look like a short suspend period to the kernel while preserving the net devices' state. Signed-off-by: Tomer Tayar <tomer.tayar@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/* QLogic qedr NIC Driver
|
|
* Copyright (c) 2015-2017 QLogic Corporation
|
|
*
|
|
* 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
|
|
* OpenIB.org 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.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
#ifndef QEDE_ROCE_H
|
|
#define QEDE_ROCE_H
|
|
|
|
#include <linux/pci.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/types.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
struct qedr_dev;
|
|
struct qed_dev;
|
|
struct qede_dev;
|
|
|
|
enum qede_rdma_event {
|
|
QEDE_UP,
|
|
QEDE_DOWN,
|
|
QEDE_CHANGE_ADDR,
|
|
QEDE_CLOSE
|
|
};
|
|
|
|
struct qede_rdma_event_work {
|
|
struct list_head list;
|
|
struct work_struct work;
|
|
void *ptr;
|
|
enum qede_rdma_event event;
|
|
};
|
|
|
|
struct qedr_driver {
|
|
unsigned char name[32];
|
|
|
|
struct qedr_dev* (*add)(struct qed_dev *, struct pci_dev *,
|
|
struct net_device *);
|
|
|
|
void (*remove)(struct qedr_dev *);
|
|
void (*notify)(struct qedr_dev *, enum qede_rdma_event);
|
|
};
|
|
|
|
/* APIs for RDMA driver to register callback handlers,
|
|
* which will be invoked when device is added, removed, ifup, ifdown
|
|
*/
|
|
int qede_rdma_register_driver(struct qedr_driver *drv);
|
|
void qede_rdma_unregister_driver(struct qedr_driver *drv);
|
|
|
|
bool qede_rdma_supported(struct qede_dev *dev);
|
|
|
|
#if IS_ENABLED(CONFIG_QED_RDMA)
|
|
int qede_rdma_dev_add(struct qede_dev *dev, bool recovery);
|
|
void qede_rdma_dev_event_open(struct qede_dev *dev);
|
|
void qede_rdma_dev_event_close(struct qede_dev *dev);
|
|
void qede_rdma_dev_remove(struct qede_dev *dev, bool recovery);
|
|
void qede_rdma_event_changeaddr(struct qede_dev *edr);
|
|
|
|
#else
|
|
static inline int qede_rdma_dev_add(struct qede_dev *dev,
|
|
bool recovery)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void qede_rdma_dev_event_open(struct qede_dev *dev) {}
|
|
static inline void qede_rdma_dev_event_close(struct qede_dev *dev) {}
|
|
static inline void qede_rdma_dev_remove(struct qede_dev *dev,
|
|
bool recovery) {}
|
|
static inline void qede_rdma_event_changeaddr(struct qede_dev *edr) {}
|
|
#endif
|
|
#endif
|