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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
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef QEDE_ROCE_H
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#define QEDE_ROCE_H
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#include <linux/pci.h>
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#include <linux/netdevice.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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struct qedr_dev;
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struct qed_dev;
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struct qede_dev;
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enum qede_rdma_event {
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QEDE_UP,
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QEDE_DOWN,
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QEDE_CHANGE_ADDR,
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QEDE_CLOSE
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};
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struct qede_rdma_event_work {
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struct list_head list;
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struct work_struct work;
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void *ptr;
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enum qede_rdma_event event;
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};
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struct qedr_driver {
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unsigned char name[32];
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struct qedr_dev* (*add)(struct qed_dev *, struct pci_dev *,
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struct net_device *);
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void (*remove)(struct qedr_dev *);
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void (*notify)(struct qedr_dev *, enum qede_rdma_event);
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};
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/* APIs for RDMA driver to register callback handlers,
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* which will be invoked when device is added, removed, ifup, ifdown
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*/
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int qede_rdma_register_driver(struct qedr_driver *drv);
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void qede_rdma_unregister_driver(struct qedr_driver *drv);
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bool qede_rdma_supported(struct qede_dev *dev);
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#if IS_ENABLED(CONFIG_QED_RDMA)
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int qede_rdma_dev_add(struct qede_dev *dev, bool recovery);
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void qede_rdma_dev_event_open(struct qede_dev *dev);
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void qede_rdma_dev_event_close(struct qede_dev *dev);
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void qede_rdma_dev_remove(struct qede_dev *dev, bool recovery);
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void qede_rdma_event_changeaddr(struct qede_dev *edr);
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#else
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static inline int qede_rdma_dev_add(struct qede_dev *dev,
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bool recovery)
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{
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return 0;
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}
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static inline void qede_rdma_dev_event_open(struct qede_dev *dev) {}
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static inline void qede_rdma_dev_event_close(struct qede_dev *dev) {}
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static inline void qede_rdma_dev_remove(struct qede_dev *dev,
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bool recovery) {}
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static inline void qede_rdma_event_changeaddr(struct qede_dev *edr) {}
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#endif
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#endif
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