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d114f99a29
In the shutdown path, when be2net calls pci_disable_msix(), it complains (BUG_ON) that irqs requested by ocrdma driver are still in use. This patch fixes this problem by issuing shutdown event to ocrdma from be2net shutdown path. As part of shutdown event processing, ocrdma driver will free up all the resources and free irqs. Once this completes be2net completes pci_disable_msix successfully. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/*
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* Copyright (C) 2005 - 2014 Emulex
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* 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 the GNU General Public License version 2
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* as published by the Free Software Foundation. The full GNU General
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* Public License is included in this distribution in the file called COPYING.
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*
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* Contact Information:
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* linux-drivers@emulex.com
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*
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* Emulex
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* 3333 Susan Street
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* Costa Mesa, CA 92626
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*/
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#ifndef BE_ROCE_H
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#define BE_ROCE_H
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#include <linux/pci.h>
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#include <linux/netdevice.h>
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#define BE_ROCE_ABI_VERSION 1
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struct ocrdma_dev;
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enum be_interrupt_mode {
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BE_INTERRUPT_MODE_MSIX = 0,
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BE_INTERRUPT_MODE_INTX = 1,
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BE_INTERRUPT_MODE_MSI = 2,
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};
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#define MAX_MSIX_VECTORS 32
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struct be_dev_info {
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u8 __iomem *db;
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u64 unmapped_db;
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u32 db_page_size;
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u32 db_total_size;
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u64 dpp_unmapped_addr;
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u32 dpp_unmapped_len;
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struct pci_dev *pdev;
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struct net_device *netdev;
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u8 mac_addr[ETH_ALEN];
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u32 dev_family;
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enum be_interrupt_mode intr_mode;
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struct {
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int num_vectors;
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int start_vector;
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u32 vector_list[MAX_MSIX_VECTORS];
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} msix;
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};
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/* ocrdma driver register's the callback functions with nic driver. */
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struct ocrdma_driver {
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unsigned char name[32];
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u32 be_abi_version;
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struct ocrdma_dev *(*add) (struct be_dev_info *dev_info);
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void (*remove) (struct ocrdma_dev *);
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void (*state_change_handler) (struct ocrdma_dev *, u32 new_state);
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};
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enum {
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BE_DEV_UP = 0,
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BE_DEV_DOWN = 1,
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BE_DEV_SHUTDOWN = 2
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};
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/* APIs for RoCE 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 be_roce_register_driver(struct ocrdma_driver *drv);
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void be_roce_unregister_driver(struct ocrdma_driver *drv);
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/* API for RoCE driver to issue mailbox commands */
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int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
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int wrb_payload_size, u16 *cmd_status, u16 *ext_status);
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#endif /* BE_ROCE_H */
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