132 lines
2.7 KiB
C
132 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
|
|
*/
|
|
|
|
#ifndef __UM_VECTOR_KERN_H
|
|
#define __UM_VECTOR_KERN_H
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/socket.h>
|
|
#include <linux/list.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/interrupt.h>
|
|
#include "vector_user.h"
|
|
|
|
/* Queue structure specially adapted for multiple enqueue/dequeue
|
|
* in a mmsgrecv/mmsgsend context
|
|
*/
|
|
|
|
/* Dequeue method */
|
|
|
|
#define QUEUE_SENDMSG 0
|
|
#define QUEUE_SENDMMSG 1
|
|
|
|
#define VECTOR_RX 1
|
|
#define VECTOR_TX (1 << 1)
|
|
#define VECTOR_BPF (1 << 2)
|
|
#define VECTOR_QDISC_BYPASS (1 << 3)
|
|
|
|
#define ETH_MAX_PACKET 1500
|
|
#define ETH_HEADER_OTHER 32 /* just in case someone decides to go mad on QnQ */
|
|
|
|
struct vector_queue {
|
|
struct mmsghdr *mmsg_vector;
|
|
void **skbuff_vector;
|
|
/* backlink to device which owns us */
|
|
struct net_device *dev;
|
|
spinlock_t head_lock;
|
|
spinlock_t tail_lock;
|
|
int queue_depth, head, tail, max_depth, max_iov_frags;
|
|
short options;
|
|
};
|
|
|
|
struct vector_estats {
|
|
uint64_t rx_queue_max;
|
|
uint64_t rx_queue_running_average;
|
|
uint64_t tx_queue_max;
|
|
uint64_t tx_queue_running_average;
|
|
uint64_t rx_encaps_errors;
|
|
uint64_t tx_timeout_count;
|
|
uint64_t tx_restart_queue;
|
|
uint64_t tx_kicks;
|
|
uint64_t tx_flow_control_xon;
|
|
uint64_t tx_flow_control_xoff;
|
|
uint64_t rx_csum_offload_good;
|
|
uint64_t rx_csum_offload_errors;
|
|
uint64_t sg_ok;
|
|
uint64_t sg_linearized;
|
|
};
|
|
|
|
#define VERIFY_HEADER_NOK -1
|
|
#define VERIFY_HEADER_OK 0
|
|
#define VERIFY_CSUM_OK 1
|
|
|
|
struct vector_private {
|
|
struct list_head list;
|
|
spinlock_t lock;
|
|
struct net_device *dev;
|
|
|
|
int unit;
|
|
|
|
/* Timeout timer in TX */
|
|
|
|
struct timer_list tl;
|
|
|
|
/* Scheduled "remove device" work */
|
|
struct work_struct reset_tx;
|
|
struct vector_fds *fds;
|
|
|
|
struct vector_queue *rx_queue;
|
|
struct vector_queue *tx_queue;
|
|
|
|
int rx_irq;
|
|
int tx_irq;
|
|
|
|
struct arglist *parsed;
|
|
|
|
void *transport_data; /* transport specific params if needed */
|
|
|
|
int max_packet;
|
|
int req_size; /* different from max packet - used for TSO */
|
|
int headroom;
|
|
|
|
int options;
|
|
|
|
/* remote address if any - some transports will leave this as null */
|
|
|
|
int header_size;
|
|
int rx_header_size;
|
|
int coalesce;
|
|
|
|
void *header_rxbuffer;
|
|
void *header_txbuffer;
|
|
|
|
int (*form_header)(uint8_t *header,
|
|
struct sk_buff *skb, struct vector_private *vp);
|
|
int (*verify_header)(uint8_t *header,
|
|
struct sk_buff *skb, struct vector_private *vp);
|
|
|
|
spinlock_t stats_lock;
|
|
|
|
struct tasklet_struct tx_poll;
|
|
bool rexmit_scheduled;
|
|
bool opened;
|
|
bool in_write_poll;
|
|
bool in_error;
|
|
|
|
/* ethtool stats */
|
|
|
|
struct vector_estats estats;
|
|
void *bpf;
|
|
|
|
char user[0];
|
|
};
|
|
|
|
extern int build_transport_data(struct vector_private *vp);
|
|
|
|
#endif
|