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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */
/* Intel(R) Ethernet Connection E800 Series Linux Driver */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include "ice.h"
#define DRV_VERSION "ice-0.0.1-k"
#define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"
static const char ice_drv_ver[] = DRV_VERSION;
static const char ice_driver_string[] = DRV_SUMMARY;
static const char ice_copyright[] = "Copyright (c) 2018, Intel Corporation.";
MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
MODULE_DESCRIPTION(DRV_SUMMARY);
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
static int debug = -1;
module_param(debug, int, 0644);
#ifndef CONFIG_DYNAMIC_DEBUG
MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXXXXX)");
#else
MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)");
#endif /* !CONFIG_DYNAMIC_DEBUG */
/**
* ice_set_ctrlq_len - helper function to set controlq length
* @hw: pointer to the hw instance
*/
static void ice_set_ctrlq_len(struct ice_hw *hw)
{
hw->adminq.num_rq_entries = ICE_AQ_LEN;
hw->adminq.num_sq_entries = ICE_AQ_LEN;
hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN;
hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN;
}
/**
* ice_probe - Device initialization routine
* @pdev: PCI device information struct
* @ent: entry in ice_pci_tbl
*
* Returns 0 on success, negative on failure
*/
static int ice_probe(struct pci_dev *pdev,
const struct pci_device_id __always_unused *ent)
{
struct ice_pf *pf;
struct ice_hw *hw;
int err;
/* this driver uses devres, see Documentation/driver-model/devres.txt */
err = pcim_enable_device(pdev);
if (err)
return err;
err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), pci_name(pdev));
if (err) {
dev_err(&pdev->dev, "I/O map error %d\n", err);
return err;
}
pf = devm_kzalloc(&pdev->dev, sizeof(*pf), GFP_KERNEL);
if (!pf)
return -ENOMEM;
/* set up for high or low dma */
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err)
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "DMA configuration failed: 0x%x\n", err);
return err;
}
pci_enable_pcie_error_reporting(pdev);
pci_set_master(pdev);
pf->pdev = pdev;
pci_set_drvdata(pdev, pf);
set_bit(__ICE_DOWN, pf->state);
hw = &pf->hw;
hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
hw->back = pf;
hw->vendor_id = pdev->vendor;
hw->device_id = pdev->device;
pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
hw->subsystem_vendor_id = pdev->subsystem_vendor;
hw->subsystem_device_id = pdev->subsystem_device;
hw->bus.device = PCI_SLOT(pdev->devfn);
hw->bus.func = PCI_FUNC(pdev->devfn);
ice_set_ctrlq_len(hw);
pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);
#ifndef CONFIG_DYNAMIC_DEBUG
if (debug < -1)
hw->debug_mask = debug;
#endif
err = ice_init_hw(hw);
if (err) {
dev_err(&pdev->dev, "ice_init_hw failed: %d\n", err);
err = -EIO;
goto err_exit_unroll;
}
dev_info(&pdev->dev, "firmware %d.%d.%05d api %d.%d\n",
hw->fw_maj_ver, hw->fw_min_ver, hw->fw_build,
hw->api_maj_ver, hw->api_min_ver);
return 0;
err_exit_unroll:
pci_disable_pcie_error_reporting(pdev);
return err;
}
/**
* ice_remove - Device removal routine
* @pdev: PCI device information struct
*/
static void ice_remove(struct pci_dev *pdev)
{
struct ice_pf *pf = pci_get_drvdata(pdev);
if (!pf)
return;
set_bit(__ICE_DOWN, pf->state);
ice_deinit_hw(&pf->hw);
pci_disable_pcie_error_reporting(pdev);
}
/* ice_pci_tbl - PCI Device ID Table
*
* Wildcard entries (PCI_ANY_ID) should come last
* Last entry must be all 0s
*
* { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
* Class, Class Mask, private data (not used) }
*/
static const struct pci_device_id ice_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, ICE_DEV_ID_C810_BACKPLANE), 0 },
{ PCI_VDEVICE(INTEL, ICE_DEV_ID_C810_QSFP), 0 },
{ PCI_VDEVICE(INTEL, ICE_DEV_ID_C810_SFP), 0 },
{ PCI_VDEVICE(INTEL, ICE_DEV_ID_C810_10G_BASE_T), 0 },
{ PCI_VDEVICE(INTEL, ICE_DEV_ID_C810_SGMII), 0 },
/* required last entry */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, ice_pci_tbl);
static struct pci_driver ice_driver = {
.name = KBUILD_MODNAME,
.id_table = ice_pci_tbl,
.probe = ice_probe,
.remove = ice_remove,
};
/**
* ice_module_init - Driver registration routine
*
* ice_module_init is the first routine called when the driver is
* loaded. All it does is register with the PCI subsystem.
*/
static int __init ice_module_init(void)
{
int status;
pr_info("%s - version %s\n", ice_driver_string, ice_drv_ver);
pr_info("%s\n", ice_copyright);
status = pci_register_driver(&ice_driver);
if (status)
pr_err("failed to register pci driver, err %d\n", status);
return status;
}
module_init(ice_module_init);
/**
* ice_module_exit - Driver exit cleanup routine
*
* ice_module_exit is called just before the driver is removed
* from memory.
*/
static void __exit ice_module_exit(void)
{
pci_unregister_driver(&ice_driver);
pr_info("module unloaded\n");
}
module_exit(ice_module_exit);
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