* Copyright 2010-2017 Intel Corporation.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* as published by the Free Software Foundation.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
* Disclaimer: The codes contained in these modules may be specific to
* the Intel Software Development Platform codenamed Knights Ferry,
* and the Intel product codenamed Knights Corner, and are not backward
* compatible with other Intel products. Additionally, Intel will NOT
* support the codes or instruction set in future products.
* Intel offers no warranty of any kind regarding the code. This code is
* licensed on an "AS IS" basis and Intel is not obligated to provide
* any support, assistance, installation, training, or other services
* of any kind. Intel is also not obligated to provide any updates,
* enhancements or extensions. Intel specifically disclaims any warranty
* of merchantability, non-infringement, fitness for any particular
* purpose, and any other warranty.
* Further, Intel disclaims all liability of any kind, including but
* not limited to liability for infringement of any proprietary rights,
* relating to the use of the code, even if Intel is notified of the
* possibility of such liability. Except as expressly stated in an Intel
* license agreement provided with this code and agreed upon with Intel,
* no license, express or implied, by estoppel or otherwise, to any
* intellectual property rights is granted herein.
#include "micveth_common.h"
#define MICVETH_MAX_PACKET_SIZE (63 * 1024)
#define MICVETH_TRANSFER_FIFO_SIZE 128
#define MICVETH_LINK_UP_MAGIC 0x1A77ABEE
#define MICVETH_LINK_DOWN_MAGIC 0x1DEADBEE
#define MICVETH_POLL_TIMER_DELAY 1
#define MICVETH_CLIENT_TIMER_DELAY 10
typedef struct ring_packet
{
typedef struct ring_desc
{
typedef struct ring_queue
{
ring_desc_t rq_descs
[MICVETH_TRANSFER_FIFO_SIZE
];
#define VETH_STATE_INITIALIZED 0
#define VETH_STATE_LINKUP 1
#define VETH_STATE_LINKDOWN 2
typedef struct micveth_info
{
struct net_device
*vi_netdev
;
volatile uint32_t vi_state
;
struct delayed_work vi_poll
;
struct workqueue_struct
*vi_wq
;
struct work_struct vi_bh
;
struct work_struct vi_txws
;
ring_packet_t vi_tx_desc
[MICVETH_TRANSFER_FIFO_SIZE
];
ring_packet_t vi_rx_desc
[MICVETH_TRANSFER_FIFO_SIZE
];
int lv_num_links_remaining
;
struct mutex lv_state_mutex
;
struct delayed_work lv_poll
;
int micveth_init(struct device
*dev
);
int micveth_init_legacy(int num_bds
, struct device
*dev
);
int micveth_probe(mic_ctx_t
*mic_ctx
);
void micveth_remove(mic_ctx_t
*mic_ctx
);
int micveth_start(mic_ctx_t
*mic_ctx
);
void micveth_stop(mic_ctx_t
*mic_ctx
);