cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

cxgb3_defs.h (3233B)

      1/*
      2 * Copyright (c) 2006-2008 Chelsio, Inc. All rights reserved.
      3 *
      4 * This software is available to you under a choice of one of two
      5 * licenses.  You may choose to be licensed under the terms of the GNU
      6 * General Public License (GPL) Version 2, available from the file
      7 * COPYING in the main directory of this source tree, or the
      8 * OpenIB.org BSD license below:
      9 *
     10 *     Redistribution and use in source and binary forms, with or
     11 *     without modification, are permitted provided that the following
     12 *     conditions are met:
     13 *
     14 *      - Redistributions of source code must retain the above
     15 *        copyright notice, this list of conditions and the following
     16 *        disclaimer.
     17 *
     18 *      - Redistributions in binary form must reproduce the above
     19 *        copyright notice, this list of conditions and the following
     20 *        disclaimer in the documentation and/or other materials
     21 *        provided with the distribution.
     22 *
     23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     30 * SOFTWARE.
     31 */
     32#ifndef _CHELSIO_DEFS_H
     33#define _CHELSIO_DEFS_H
     34
     35#include <linux/skbuff.h>
     36#include <net/tcp.h>
     37
     38#include "t3cdev.h"
     39
     40#include "cxgb3_offload.h"
     41
     42#define VALIDATE_TID 1
     43
     44/*
     45 * Map an ATID or STID to their entries in the corresponding TID tables.
     46 */
     47static inline union active_open_entry *atid2entry(const struct tid_info *t,
     48						  unsigned int atid)
     49{
     50	return &t->atid_tab[atid - t->atid_base];
     51}
     52
     53static inline union listen_entry *stid2entry(const struct tid_info *t,
     54					     unsigned int stid)
     55{
     56	return &t->stid_tab[stid - t->stid_base];
     57}
     58
     59/*
     60 * Find the connection corresponding to a TID.
     61 */
     62static inline struct t3c_tid_entry *lookup_tid(const struct tid_info *t,
     63					       unsigned int tid)
     64{
     65	struct t3c_tid_entry *t3c_tid = tid < t->ntids ?
     66	    &(t->tid_tab[tid]) : NULL;
     67
     68	return (t3c_tid && t3c_tid->client) ? t3c_tid : NULL;
     69}
     70
     71/*
     72 * Find the connection corresponding to a server TID.
     73 */
     74static inline struct t3c_tid_entry *lookup_stid(const struct tid_info *t,
     75						unsigned int tid)
     76{
     77	union listen_entry *e;
     78
     79	if (tid < t->stid_base || tid >= t->stid_base + t->nstids)
     80		return NULL;
     81
     82	e = stid2entry(t, tid);
     83	if ((void *)e->next >= (void *)t->tid_tab &&
     84	    (void *)e->next < (void *)&t->atid_tab[t->natids])
     85		return NULL;
     86
     87	return &e->t3c_tid;
     88}
     89
     90/*
     91 * Find the connection corresponding to an active-open TID.
     92 */
     93static inline struct t3c_tid_entry *lookup_atid(const struct tid_info *t,
     94						unsigned int tid)
     95{
     96	union active_open_entry *e;
     97
     98	if (tid < t->atid_base || tid >= t->atid_base + t->natids)
     99		return NULL;
    100
    101	e = atid2entry(t, tid);
    102	if ((void *)e->next >= (void *)t->tid_tab &&
    103	    (void *)e->next < (void *)&t->atid_tab[t->natids])
    104		return NULL;
    105
    106	return &e->t3c_tid;
    107}
    108
    109int attach_t3cdev(struct t3cdev *dev);
    110void detach_t3cdev(struct t3cdev *dev);
    111#endif