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

scb.h (2917B)

      1/*
      2 * Copyright (c) 2010 Broadcom Corporation
      3 *
      4 * Permission to use, copy, modify, and/or distribute this software for any
      5 * purpose with or without fee is hereby granted, provided that the above
      6 * copyright notice and this permission notice appear in all copies.
      7 *
      8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
     13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
     14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     15 */
     16
     17#ifndef _BRCM_SCB_H_
     18#define _BRCM_SCB_H_
     19
     20#include <linux/if_ether.h>
     21#include <brcmu_utils.h>
     22#include <defs.h>
     23#include "types.h"
     24
     25#define AMPDU_TX_BA_MAX_WSIZE	64	/* max Tx ba window size (in pdu) */
     26
     27#define AMPDU_MAX_SCB_TID	NUMPRIO
     28
     29/* scb flags */
     30#define SCB_WMECAP		0x0040
     31#define SCB_HTCAP		0x10000	/* HT (MIMO) capable device */
     32#define SCB_IS40		0x80000	/* 40MHz capable */
     33#define SCB_STBCCAP		0x40000000	/* STBC Capable */
     34
     35#define SCB_MAGIC	0xbeefcafe
     36
     37/* structure to store per-tid state for the ampdu initiator */
     38struct scb_ampdu_tid_ini {
     39	u8 tid;		  /* initiator tid for easy lookup */
     40	/* tx retry count; indexed by seq modulo */
     41	u8 txretry[AMPDU_TX_BA_MAX_WSIZE];
     42	struct scb *scb;  /* backptr for easy lookup */
     43	u8 ba_wsize;	  /* negotiated ba window size (in pdu) */
     44};
     45
     46struct scb_ampdu {
     47	struct scb *scb;	/* back pointer for easy reference */
     48	u8 mpdu_density;	/* mpdu density */
     49	u8 max_pdu;		/* max pdus allowed in ampdu */
     50	u8 release;		/* # of mpdus released at a time */
     51	u16 min_len;		/* min mpdu len to support the density */
     52	u32 max_rx_ampdu_bytes;	/* max ampdu rcv length; 8k, 16k, 32k, 64k */
     53
     54	/*
     55	 * This could easily be a ini[] pointer and we keep this info in wl
     56	 * itself instead of having mac80211 hold it for us. Also could be made
     57	 * dynamic per tid instead of static.
     58	 */
     59	/* initiator info - per tid (NUMPRIO): */
     60	struct scb_ampdu_tid_ini ini[AMPDU_MAX_SCB_TID];
     61};
     62
     63/* station control block - one per remote MAC address */
     64struct scb {
     65	u32 magic;
     66	u32 flags;	/* various bit flags as defined below */
     67	u32 flags2;	/* various bit flags2 as defined below */
     68	u8 state;	/* current state bitfield of auth/assoc process */
     69	u8 ea[ETH_ALEN];	/* station address */
     70	uint fragresid[NUMPRIO];/* #bytes unused in frag buffer per prio */
     71
     72	u16 seqctl[NUMPRIO];	/* seqctl of last received frame (for dups) */
     73	/* seqctl of last received frame (for dups) for non-QoS data and
     74	 * management */
     75	u16 seqctl_nonqos;
     76	u16 seqnum[NUMPRIO];/* WME: driver maintained sw seqnum per priority */
     77
     78	struct scb_ampdu scb_ampdu;	/* AMPDU state including per tid info */
     79};
     80
     81#endif				/* _BRCM_SCB_H_ */