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/*
* Copyright (c) 2006-2008 Chelsio, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _CHELSIO_DEFS_H
#define _CHELSIO_DEFS_H
#include <linux/skbuff.h>
#include <net/tcp.h>
#include "t3cdev.h"
#include "cxgb3_offload.h"
#define VALIDATE_TID 1
/*
* Map an ATID or STID to their entries in the corresponding TID tables.
*/
static inline union active_open_entry *atid2entry(const struct tid_info *t,
unsigned int atid)
{
return &t->atid_tab[atid - t->atid_base];
}
static inline union listen_entry *stid2entry(const struct tid_info *t,
unsigned int stid)
{
return &t->stid_tab[stid - t->stid_base];
}
/*
* Find the connection corresponding to a TID.
*/
static inline struct t3c_tid_entry *lookup_tid(const struct tid_info *t,
unsigned int tid)
{
struct t3c_tid_entry *t3c_tid = tid < t->ntids ?
&(t->tid_tab[tid]) : NULL;
return (t3c_tid && t3c_tid->client) ? t3c_tid : NULL;
}
/*
* Find the connection corresponding to a server TID.
*/
static inline struct t3c_tid_entry *lookup_stid(const struct tid_info *t,
unsigned int tid)
{
union listen_entry *e;
if (tid < t->stid_base || tid >= t->stid_base + t->nstids)
return NULL;
e = stid2entry(t, tid);
if ((void *)e->next >= (void *)t->tid_tab &&
(void *)e->next < (void *)&t->atid_tab[t->natids])
return NULL;
return &e->t3c_tid;
}
/*
* Find the connection corresponding to an active-open TID.
*/
static inline struct t3c_tid_entry *lookup_atid(const struct tid_info *t,
unsigned int tid)
{
union active_open_entry *e;
if (tid < t->atid_base || tid >= t->atid_base + t->natids)
return NULL;
e = atid2entry(t, tid);
if ((void *)e->next >= (void *)t->tid_tab &&
(void *)e->next < (void *)&t->atid_tab[t->natids])
return NULL;
return &e->t3c_tid;
}
int attach_t3cdev(struct t3cdev *dev);
void detach_t3cdev(struct t3cdev *dev);
#endif
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