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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018 Intel Corporation */
#include <linux/module.h>
#include <linux/types.h>
#include "igc.h"
#include "igc_hw.h"
#define DRV_VERSION "0.0.1-k"
#define DRV_SUMMARY "Intel(R) 2.5G Ethernet Linux Driver"
MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
MODULE_DESCRIPTION(DRV_SUMMARY);
MODULE_LICENSE("GPL v2");
MODULE_VERSION(DRV_VERSION);
char igc_driver_name[] = "igc";
char igc_driver_version[] = DRV_VERSION;
static const char igc_driver_string[] = DRV_SUMMARY;
static const char igc_copyright[] =
"Copyright(c) 2018 Intel Corporation.";
static const struct pci_device_id igc_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, IGC_DEV_ID_I225_LM) },
{ PCI_VDEVICE(INTEL, IGC_DEV_ID_I225_V) },
/* required last entry */
{0, }
};
MODULE_DEVICE_TABLE(pci, igc_pci_tbl);
/**
* igc_probe - Device Initialization Routine
* @pdev: PCI device information struct
* @ent: entry in igc_pci_tbl
*
* Returns 0 on success, negative on failure
*
* igc_probe initializes an adapter identified by a pci_dev structure.
* The OS initialization, configuring the adapter private structure,
* and a hardware reset occur.
*/
static int igc_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
int err, pci_using_dac;
err = pci_enable_device_mem(pdev);
if (err)
return err;
pci_using_dac = 0;
err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
if (!err) {
err = dma_set_coherent_mask(&pdev->dev,
DMA_BIT_MASK(64));
if (!err)
pci_using_dac = 1;
} else {
err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err) {
err = dma_set_coherent_mask(&pdev->dev,
DMA_BIT_MASK(32));
if (err) {
IGC_ERR("Wrong DMA configuration, aborting\n");
goto err_dma;
}
}
}
err = pci_request_selected_regions(pdev,
pci_select_bars(pdev,
IORESOURCE_MEM),
igc_driver_name);
if (err)
goto err_pci_reg;
pci_set_master(pdev);
err = pci_save_state(pdev);
return 0;
err_pci_reg:
err_dma:
pci_disable_device(pdev);
return err;
}
/**
* igc_remove - Device Removal Routine
* @pdev: PCI device information struct
*
* igc_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device. This could be caused by a
* Hot-Plug event, or because the driver is going to be removed from
* memory.
*/
static void igc_remove(struct pci_dev *pdev)
{
pci_release_selected_regions(pdev,
pci_select_bars(pdev, IORESOURCE_MEM));
pci_disable_device(pdev);
}
static struct pci_driver igc_driver = {
.name = igc_driver_name,
.id_table = igc_pci_tbl,
.probe = igc_probe,
.remove = igc_remove,
};
/**
* igc_init_module - Driver Registration Routine
*
* igc_init_module is the first routine called when the driver is
* loaded. All it does is register with the PCI subsystem.
*/
static int __init igc_init_module(void)
{
int ret;
pr_info("%s - version %s\n",
igc_driver_string, igc_driver_version);
pr_info("%s\n", igc_copyright);
ret = pci_register_driver(&igc_driver);
return ret;
}
module_init(igc_init_module);
/**
* igc_exit_module - Driver Exit Cleanup Routine
*
* igc_exit_module is called just before the driver is removed
* from memory.
*/
static void __exit igc_exit_module(void)
{
pci_unregister_driver(&igc_driver);
}
module_exit(igc_exit_module);
/* igc_main.c */
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