mirror of https://gitee.com/openkylin/linux.git
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/**********************************************************************
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* Author: Cavium, Inc.
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*
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* Contact: support@cavium.com
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* Please include "LiquidIO" in the subject.
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*
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* Copyright (c) 2003-2016 Cavium, Inc.
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more details.
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***********************************************************************/
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#include <linux/pci.h>
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#include <net/vxlan.h>
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#include "liquidio_common.h"
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#include "octeon_droq.h"
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#include "octeon_iq.h"
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#include "response_manager.h"
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#include "octeon_device.h"
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MODULE_AUTHOR("Cavium Networks, <support@cavium.com>");
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MODULE_DESCRIPTION("Cavium LiquidIO Intelligent Server Adapter Virtual Function Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(LIQUIDIO_VERSION);
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struct octeon_device_priv {
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/* Tasklet structures for this device. */
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struct tasklet_struct droq_tasklet;
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unsigned long napi_mask;
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};
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static int
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liquidio_vf_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
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static void liquidio_vf_remove(struct pci_dev *pdev);
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static const struct pci_device_id liquidio_vf_pci_tbl[] = {
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{
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PCI_VENDOR_ID_CAVIUM, OCTEON_CN23XX_VF_VID,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0
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},
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{
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0, 0, 0, 0, 0, 0, 0
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}
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};
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MODULE_DEVICE_TABLE(pci, liquidio_vf_pci_tbl);
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static struct pci_driver liquidio_vf_pci_driver = {
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.name = "LiquidIO_VF",
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.id_table = liquidio_vf_pci_tbl,
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.probe = liquidio_vf_probe,
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.remove = liquidio_vf_remove,
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};
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/**
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* \brief PCI probe handler
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* @param pdev PCI device structure
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* @param ent unused
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*/
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static int
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liquidio_vf_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent __attribute__((unused)))
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{
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struct octeon_device *oct_dev = NULL;
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oct_dev = octeon_allocate_device(pdev->device,
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sizeof(struct octeon_device_priv));
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if (!oct_dev) {
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dev_err(&pdev->dev, "Unable to allocate device\n");
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return -ENOMEM;
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}
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dev_info(&pdev->dev, "Initializing device %x:%x.\n",
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(u32)pdev->vendor, (u32)pdev->device);
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/* Assign octeon_device for this device to the private data area. */
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pci_set_drvdata(pdev, oct_dev);
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/* set linux specific device pointer */
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oct_dev->pci_dev = pdev;
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return 0;
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}
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/**
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* \brief Cleans up resources at unload time
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* @param pdev PCI device structure
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*/
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static void liquidio_vf_remove(struct pci_dev *pdev)
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{
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struct octeon_device *oct_dev = pci_get_drvdata(pdev);
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dev_dbg(&oct_dev->pci_dev->dev, "Stopping device\n");
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/* This octeon device has been removed. Update the global
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* data structure to reflect this. Free the device structure.
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*/
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octeon_free_device_mem(oct_dev);
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}
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static int __init liquidio_vf_init(void)
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{
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octeon_init_device_list(0);
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return pci_register_driver(&liquidio_vf_pci_driver);
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}
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static void __exit liquidio_vf_exit(void)
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{
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pci_unregister_driver(&liquidio_vf_pci_driver);
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pr_info("LiquidIO_VF network module is now unloaded\n");
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}
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module_init(liquidio_vf_init);
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module_exit(liquidio_vf_exit);
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