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/*
* aQuantia Corporation Network Driver
* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*/
/* File aq_main.c: Main file for aQuantia Linux driver. */
#include "aq_main.h"
#include "aq_nic.h"
#include "aq_pci_func.h"
#include "aq_ethtool.h"
#include "hw_atl/hw_atl_a0.h"
#include "hw_atl/hw_atl_b0.h"
#include <linux/netdevice.h>
#include <linux/module.h>
static const struct pci_device_id aq_pci_tbl[] = {
{ PCI_VDEVICE(AQUANTIA, HW_ATL_DEVICE_ID_0001), },
{ PCI_VDEVICE(AQUANTIA, HW_ATL_DEVICE_ID_D100), },
{ PCI_VDEVICE(AQUANTIA, HW_ATL_DEVICE_ID_D107), },
{ PCI_VDEVICE(AQUANTIA, HW_ATL_DEVICE_ID_D108), },
{ PCI_VDEVICE(AQUANTIA, HW_ATL_DEVICE_ID_D109), },
{}
};
MODULE_DEVICE_TABLE(pci, aq_pci_tbl);
MODULE_LICENSE("GPL v2");
MODULE_VERSION(AQ_CFG_DRV_VERSION);
MODULE_AUTHOR(AQ_CFG_DRV_AUTHOR);
MODULE_DESCRIPTION(AQ_CFG_DRV_DESC);
static struct aq_hw_ops *aq_pci_probe_get_hw_ops_by_id(struct pci_dev *pdev)
{
struct aq_hw_ops *ops = NULL;
ops = hw_atl_a0_get_ops_by_id(pdev);
if (!ops)
ops = hw_atl_b0_get_ops_by_id(pdev);
return ops;
}
static int aq_ndev_open(struct net_device *ndev)
{
struct aq_nic_s *aq_nic = NULL;
int err = 0;
aq_nic = aq_nic_alloc_hot(ndev);
if (!aq_nic) {
err = -ENOMEM;
goto err_exit;
}
err = aq_nic_init(aq_nic);
if (err < 0)
goto err_exit;
err = aq_nic_start(aq_nic);
if (err < 0)
goto err_exit;
err_exit:
if (err < 0)
aq_nic_deinit(aq_nic);
return err;
}
static int aq_ndev_close(struct net_device *ndev)
{
int err = 0;
struct aq_nic_s *aq_nic = netdev_priv(ndev);
err = aq_nic_stop(aq_nic);
if (err < 0)
goto err_exit;
aq_nic_deinit(aq_nic);
aq_nic_free_hot_resources(aq_nic);
err_exit:
return err;
}
static int aq_ndev_start_xmit(struct sk_buff *skb, struct net_device *ndev)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
int err = 0;
err = aq_nic_xmit(aq_nic, skb);
if (err < 0)
goto err_exit;
err_exit:
return err;
}
static int aq_ndev_change_mtu(struct net_device *ndev, int new_mtu)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
int err = 0;
if (new_mtu == ndev->mtu) {
err = 0;
goto err_exit;
}
if (new_mtu < 68) {
err = -EINVAL;
goto err_exit;
}
err = aq_nic_set_mtu(aq_nic, new_mtu + ETH_HLEN);
if (err < 0)
goto err_exit;
ndev->mtu = new_mtu;
if (netif_running(ndev)) {
aq_ndev_close(ndev);
aq_ndev_open(ndev);
}
err_exit:
return err;
}
static int aq_ndev_set_features(struct net_device *ndev,
netdev_features_t features)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *aq_cfg = aq_nic_get_cfg(aq_nic);
bool is_lro = false;
if (aq_cfg->hw_features & NETIF_F_LRO) {
is_lro = features & NETIF_F_LRO;
if (aq_cfg->is_lro != is_lro) {
aq_cfg->is_lro = is_lro;
if (netif_running(ndev)) {
aq_ndev_close(ndev);
aq_ndev_open(ndev);
}
}
}
return 0;
}
static int aq_ndev_set_mac_address(struct net_device *ndev, void *addr)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
int err = 0;
err = eth_mac_addr(ndev, addr);
if (err < 0)
goto err_exit;
err = aq_nic_set_mac(aq_nic, ndev);
if (err < 0)
goto err_exit;
err_exit:
return err;
}
static void aq_ndev_set_multicast_settings(struct net_device *ndev)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
int err = 0;
err = aq_nic_set_packet_filter(aq_nic, ndev->flags);
if (err < 0)
goto err_exit;
if (netdev_mc_count(ndev)) {
err = aq_nic_set_multicast_list(aq_nic, ndev);
if (err < 0)
goto err_exit;
}
err_exit:;
}
static const struct net_device_ops aq_ndev_ops = {
.ndo_open = aq_ndev_open,
.ndo_stop = aq_ndev_close,
.ndo_start_xmit = aq_ndev_start_xmit,
.ndo_set_rx_mode = aq_ndev_set_multicast_settings,
.ndo_change_mtu = aq_ndev_change_mtu,
.ndo_set_mac_address = aq_ndev_set_mac_address,
.ndo_set_features = aq_ndev_set_features
};
static int aq_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
struct aq_hw_ops *aq_hw_ops = NULL;
struct aq_pci_func_s *aq_pci_func = NULL;
int err = 0;
err = pci_enable_device(pdev);
if (err < 0)
goto err_exit;
aq_hw_ops = aq_pci_probe_get_hw_ops_by_id(pdev);
aq_pci_func = aq_pci_func_alloc(aq_hw_ops, pdev,
&aq_ndev_ops, &aq_ethtool_ops);
if (!aq_pci_func) {
err = -ENOMEM;
goto err_exit;
}
err = aq_pci_func_init(aq_pci_func);
if (err < 0)
goto err_exit;
err_exit:
if (err < 0) {
if (aq_pci_func)
aq_pci_func_free(aq_pci_func);
}
return err;
}
static void aq_pci_remove(struct pci_dev *pdev)
{
struct aq_pci_func_s *aq_pci_func = pci_get_drvdata(pdev);
aq_pci_func_deinit(aq_pci_func);
aq_pci_func_free(aq_pci_func);
}
static int aq_pci_suspend(struct pci_dev *pdev, pm_message_t pm_msg)
{
struct aq_pci_func_s *aq_pci_func = pci_get_drvdata(pdev);
return aq_pci_func_change_pm_state(aq_pci_func, &pm_msg);
}
static int aq_pci_resume(struct pci_dev *pdev)
{
struct aq_pci_func_s *aq_pci_func = pci_get_drvdata(pdev);
pm_message_t pm_msg = PMSG_RESTORE;
return aq_pci_func_change_pm_state(aq_pci_func, &pm_msg);
}
static struct pci_driver aq_pci_ops = {
.name = AQ_CFG_DRV_NAME,
.id_table = aq_pci_tbl,
.probe = aq_pci_probe,
.remove = aq_pci_remove,
.suspend = aq_pci_suspend,
.resume = aq_pci_resume,
};
static int __init aq_module_init(void)
{
int err = 0;
err = pci_register_driver(&aq_pci_ops);
if (err < 0)
goto err_exit;
err_exit:
return err;
}
static void __exit aq_module_exit(void)
{
pci_unregister_driver(&aq_pci_ops);
}
module_init(aq_module_init);
module_exit(aq_module_exit);
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