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Commit 97bde5c4 authored by David VomLehn's avatar David VomLehn Committed by David S. Miller
Browse files

net: ethernet: aquantia: Support for NIC-specific code 



Add support for code specific to the Atlantic NIC.

Signed-off-by: default avatarAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: default avatarDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: default avatarPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: default avatarDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: default avatarDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ef811535

drivers/net/ethernet/aquantia/atlantic/aq_main.c

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+273 −0
Original line number Diff line number Diff line 
/*

 * 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);

drivers/net/ethernet/aquantia/atlantic/aq_main.h

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Original line number Diff line number Diff line 
/*

 * 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.h: Main file for aQuantia Linux driver. */



#ifndef AQ_MAIN_H

#define AQ_MAIN_H



#include "aq_common.h"



#endif /* AQ_MAIN_H */

drivers/net/ethernet/aquantia/atlantic/aq_nic.c

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+937 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/net/ethernet/aquantia/atlantic/aq_nic.h

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Original line number Diff line number Diff line 
/*

 * 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_nic.h: Declaration of common code for NIC. */



#ifndef AQ_NIC_H

#define AQ_NIC_H



#include "aq_common.h"

#include "aq_rss.h"



struct aq_ring_s;

struct aq_pci_func_s;

struct aq_hw_ops;



#define AQ_NIC_FC_OFF    0U

#define AQ_NIC_FC_TX     1U

#define AQ_NIC_FC_RX     2U

#define AQ_NIC_FC_FULL   3U

#define AQ_NIC_FC_AUTO   4U



#define AQ_NIC_RATE_10G        BIT(0)

#define AQ_NIC_RATE_5G         BIT(1)

#define AQ_NIC_RATE_5GSR       BIT(2)

#define AQ_NIC_RATE_2GS        BIT(3)

#define AQ_NIC_RATE_1G         BIT(4)

#define AQ_NIC_RATE_100M       BIT(5)



struct aq_nic_cfg_s {

	struct aq_hw_caps_s *aq_hw_caps;

	u64 hw_features;

	u32 rxds;		/* rx ring size, descriptors # */

	u32 txds;		/* tx ring size, descriptors # */

	u32 vecs;		/* vecs==allocated irqs */

	u32 irq_type;

	u32 itr;

	u32 num_rss_queues;

	u32 mtu;

	u32 ucp_0x364;

	u32 flow_control;

	u32 link_speed_msk;

	u32 vlan_id;

	u16 is_mc_list_enabled;

	u16 mc_list_count;

	bool is_autoneg;

	bool is_interrupt_moderation;

	bool is_polling;

	bool is_rss;

	bool is_lro;

	u8  tcs;

	struct aq_rss_parameters aq_rss;

};



#define AQ_NIC_FLAG_STARTED     0x00000004U

#define AQ_NIC_FLAG_STOPPING    0x00000008U

#define AQ_NIC_FLAG_RESETTING   0x00000010U

#define AQ_NIC_FLAG_CLOSING     0x00000020U

#define AQ_NIC_LINK_DOWN        0x04000000U

#define AQ_NIC_FLAG_ERR_UNPLUG  0x40000000U

#define AQ_NIC_FLAG_ERR_HW      0x80000000U



#define AQ_NIC_TCVEC2RING(_NIC_, _TC_, _VEC_) \

	((_TC_) * AQ_CFG_TCS_MAX + (_VEC_))



struct aq_nic_s *aq_nic_alloc_cold(const struct net_device_ops *ndev_ops,

				   const struct ethtool_ops *et_ops,

				   struct device *dev,

				   struct aq_pci_func_s *aq_pci_func,

				   unsigned int port,

				   const struct aq_hw_ops *aq_hw_ops);

int aq_nic_ndev_init(struct aq_nic_s *self);

struct aq_nic_s *aq_nic_alloc_hot(struct net_device *ndev);

void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,

			struct aq_ring_s *ring);

struct device *aq_nic_get_dev(struct aq_nic_s *self);

struct net_device *aq_nic_get_ndev(struct aq_nic_s *self);

int aq_nic_init(struct aq_nic_s *self);

int aq_nic_cfg_start(struct aq_nic_s *self);

int aq_nic_ndev_register(struct aq_nic_s *self);

void aq_nic_ndev_queue_start(struct aq_nic_s *self, unsigned int idx);

void aq_nic_ndev_queue_stop(struct aq_nic_s *self, unsigned int idx);

void aq_nic_ndev_free(struct aq_nic_s *self);

int aq_nic_start(struct aq_nic_s *self);

int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb);

int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p);

int aq_nic_get_regs_count(struct aq_nic_s *self);

void aq_nic_get_stats(struct aq_nic_s *self, u64 *data);

int aq_nic_stop(struct aq_nic_s *self);

void aq_nic_deinit(struct aq_nic_s *self);

void aq_nic_free_hot_resources(struct aq_nic_s *self);

int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu);

int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev);

int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags);

int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev);

unsigned int aq_nic_get_link_speed(struct aq_nic_s *self);

void aq_nic_get_link_settings(struct aq_nic_s *self, struct ethtool_cmd *cmd);

int aq_nic_set_link_settings(struct aq_nic_s *self, struct ethtool_cmd *cmd);

struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self);

u32 aq_nic_get_fw_version(struct aq_nic_s *self);

int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg);



#endif /* AQ_NIC_H */

drivers/net/ethernet/aquantia/atlantic/aq_nic_internal.h

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Original line number Diff line number Diff line 
/*

 * 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_nic_internal.h: Definition of private object structure. */



#ifndef AQ_NIC_INTERNAL_H

#define AQ_NIC_INTERNAL_H



struct aq_nic_s {

	struct aq_obj_s header;

	struct aq_vec_s *aq_vec[AQ_CFG_VECS_MAX];

	struct aq_ring_s *aq_ring_tx[AQ_CFG_VECS_MAX * AQ_CFG_TCS_MAX];

	struct aq_hw_s *aq_hw;

	struct net_device *ndev;

	struct aq_pci_func_s *aq_pci_func;

	unsigned int aq_vecs;

	unsigned int packet_filter;

	unsigned int power_state;

	bool is_ndev_registered;

	u8 port;

	struct aq_hw_ops aq_hw_ops;

	struct aq_hw_caps_s aq_hw_caps;

	struct aq_nic_cfg_s aq_nic_cfg;

	struct timer_list service_timer;

	struct timer_list polling_timer;

	struct aq_hw_link_status_s link_status;

	struct {

		u32 count;

		u8 ar[AQ_CFG_MULTICAST_ADDRESS_MAX][ETH_ALEN];

	} mc_list;

};



#define AQ_NIC_FLAGS_IS_NOT_READY (AQ_NIC_FLAG_STOPPING | \

			AQ_NIC_FLAG_RESETTING | AQ_NIC_FLAG_CLOSING | \

			AQ_NIC_FLAG_ERR_UNPLUG | AQ_NIC_FLAG_ERR_HW)



#define AQ_NIC_FLAGS_IS_NOT_TX_READY (AQ_NIC_FLAGS_IS_NOT_READY | \

					AQ_NIC_LINK_DOWN)



#endif /* AQ_NIC_INTERNAL_H */