cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ether1.h (7776B)


      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 *  linux/drivers/acorn/net/ether1.h
      4 *
      5 *  Copyright (C) 1996 Russell King
      6 *
      7 *  Network driver for Acorn Ether1 cards.
      8 */
      9
     10#ifndef _LINUX_ether1_H
     11#define _LINUX_ether1_H
     12
     13#ifdef __ETHER1_C
     14/* use 0 for production, 1 for verification, >2 for debug */
     15#ifndef NET_DEBUG
     16#define NET_DEBUG 0
     17#endif
     18
     19#define priv(dev)	((struct ether1_priv *)netdev_priv(dev))
     20
     21/* Page register */
     22#define REG_PAGE	(priv(dev)->base + 0x0000)
     23
     24/* Control register */
     25#define REG_CONTROL	(priv(dev)->base + 0x0004)
     26#define CTRL_RST	0x01
     27#define CTRL_LOOPBACK	0x02
     28#define CTRL_CA		0x04
     29#define CTRL_ACK	0x08
     30
     31#define ETHER1_RAM	(priv(dev)->base + 0x2000)
     32
     33/* HW address */
     34#define IDPROM_ADDRESS	(priv(dev)->base + 0x0024)
     35
     36struct ether1_priv {
     37	void __iomem *base;
     38	unsigned int tx_link;
     39	unsigned int tx_head;
     40	volatile unsigned int tx_tail;
     41	volatile unsigned int rx_head;
     42	volatile unsigned int rx_tail;
     43	unsigned char bus_type;
     44	unsigned char resetting;
     45	unsigned char initialising : 1;
     46	unsigned char restart      : 1;
     47};
     48
     49#define I82586_NULL (-1)
     50
     51typedef struct { /* tdr */
     52	unsigned short tdr_status;
     53	unsigned short tdr_command;
     54	unsigned short tdr_link;
     55	unsigned short tdr_result;
     56#define TDR_TIME	(0x7ff)
     57#define TDR_SHORT	(1 << 12)
     58#define TDR_OPEN	(1 << 13)
     59#define TDR_XCVRPROB	(1 << 14)
     60#define TDR_LNKOK	(1 << 15)
     61} tdr_t;
     62
     63typedef struct { /* transmit */
     64	unsigned short tx_status;
     65	unsigned short tx_command;
     66	unsigned short tx_link;
     67	unsigned short tx_tbdoffset;
     68} tx_t;
     69
     70typedef struct { /* tbd */
     71	unsigned short tbd_opts;
     72#define TBD_CNT		(0x3fff)
     73#define TBD_EOL		(1 << 15)
     74	unsigned short tbd_link;
     75	unsigned short tbd_bufl;
     76	unsigned short tbd_bufh;
     77} tbd_t;
     78
     79typedef struct { /* rfd */
     80	unsigned short rfd_status;
     81#define RFD_NOEOF	(1 << 6)
     82#define RFD_FRAMESHORT	(1 << 7)
     83#define RFD_DMAOVRN	(1 << 8)
     84#define RFD_NORESOURCES	(1 << 9)
     85#define RFD_ALIGNERROR	(1 << 10)
     86#define RFD_CRCERROR	(1 << 11)
     87#define RFD_OK		(1 << 13)
     88#define RFD_FDCONSUMED	(1 << 14)
     89#define RFD_COMPLETE	(1 << 15)
     90	unsigned short rfd_command;
     91#define RFD_CMDSUSPEND	(1 << 14)
     92#define RFD_CMDEL	(1 << 15)
     93	unsigned short rfd_link;
     94	unsigned short rfd_rbdoffset;
     95	unsigned char  rfd_dest[6];
     96	unsigned char  rfd_src[6];
     97	unsigned short rfd_len;
     98} rfd_t;
     99
    100typedef struct { /* rbd */
    101	unsigned short rbd_status;
    102#define RBD_ACNT	(0x3fff)
    103#define RBD_ACNTVALID	(1 << 14)
    104#define RBD_EOF		(1 << 15)
    105	unsigned short rbd_link;
    106	unsigned short rbd_bufl;
    107	unsigned short rbd_bufh;
    108	unsigned short rbd_len;
    109} rbd_t;
    110
    111typedef struct { /* nop */
    112	unsigned short nop_status;
    113	unsigned short nop_command;
    114	unsigned short nop_link;
    115} nop_t;
    116
    117typedef struct { /* set multicast */
    118	unsigned short mc_status;
    119	unsigned short mc_command;
    120	unsigned short mc_link;
    121	unsigned short mc_cnt;
    122	unsigned char  mc_addrs[1][6];
    123} mc_t;
    124
    125typedef struct { /* set address */
    126	unsigned short sa_status;
    127	unsigned short sa_command;
    128	unsigned short sa_link;
    129	unsigned char  sa_addr[6];
    130} sa_t;
    131
    132typedef struct { /* config command */
    133	unsigned short cfg_status;
    134	unsigned short cfg_command;
    135	unsigned short cfg_link;
    136	unsigned char  cfg_bytecnt;	/* size foll data: 4 - 12		 */
    137	unsigned char  cfg_fifolim;	/* FIFO threshold			 */
    138	unsigned char  cfg_byte8;
    139#define CFG8_SRDY	(1 << 6)
    140#define CFG8_SAVEBADF	(1 << 7)
    141	unsigned char  cfg_byte9;
    142#define CFG9_ADDRLEN(x)	(x)
    143#define CFG9_ADDRLENBUF	(1 << 3)
    144#define CFG9_PREAMB2	(0 << 4)
    145#define CFG9_PREAMB4	(1 << 4)
    146#define CFG9_PREAMB8	(2 << 4)
    147#define CFG9_PREAMB16	(3 << 4)
    148#define CFG9_ILOOPBACK	(1 << 6)
    149#define CFG9_ELOOPBACK	(1 << 7)
    150	unsigned char  cfg_byte10;
    151#define CFG10_LINPRI(x)	(x)
    152#define CFG10_ACR(x)	(x << 4)
    153#define CFG10_BOFMET	(1 << 7)
    154	unsigned char  cfg_ifs;
    155	unsigned char  cfg_slotl;
    156	unsigned char  cfg_byte13;
    157#define CFG13_SLOTH(x)	(x)
    158#define CFG13_RETRY(x)	(x << 4)
    159	unsigned char  cfg_byte14;
    160#define CFG14_PROMISC	(1 << 0)
    161#define CFG14_DISBRD	(1 << 1)
    162#define CFG14_MANCH	(1 << 2)
    163#define CFG14_TNCRS	(1 << 3)
    164#define CFG14_NOCRC	(1 << 4)
    165#define CFG14_CRC16	(1 << 5)
    166#define CFG14_BTSTF	(1 << 6)
    167#define CFG14_FLGPAD	(1 << 7)
    168	unsigned char  cfg_byte15;
    169#define CFG15_CSTF(x)	(x)
    170#define CFG15_ICSS	(1 << 3)
    171#define CFG15_CDTF(x)	(x << 4)
    172#define CFG15_ICDS	(1 << 7)
    173	unsigned short cfg_minfrmlen;
    174} cfg_t;
    175
    176typedef struct { /* scb */
    177	unsigned short scb_status;	/* status of 82586			*/
    178#define SCB_STRXMASK		(7 << 4)	/* Receive unit status		*/
    179#define SCB_STRXIDLE		(0 << 4)	/* Idle				*/
    180#define SCB_STRXSUSP		(1 << 4)	/* Suspended			*/
    181#define SCB_STRXNRES		(2 << 4)	/* No resources			*/
    182#define SCB_STRXRDY		(4 << 4)	/* Ready			*/
    183#define SCB_STCUMASK		(7 << 8)	/* Command unit status		*/
    184#define SCB_STCUIDLE		(0 << 8)	/* Idle				*/
    185#define SCB_STCUSUSP		(1 << 8)	/* Suspended			*/
    186#define SCB_STCUACTV		(2 << 8)	/* Active			*/
    187#define SCB_STRNR		(1 << 12)	/* Receive unit not ready	*/
    188#define SCB_STCNA		(1 << 13)	/* Command unit not ready	*/
    189#define SCB_STFR		(1 << 14)	/* Frame received		*/
    190#define SCB_STCX		(1 << 15)	/* Command completed		*/
    191	unsigned short scb_command;	/* Next command				*/
    192#define SCB_CMDRXSTART		(1 << 4)	/* Start (at rfa_offset)	*/
    193#define SCB_CMDRXRESUME		(2 << 4)	/* Resume reception		*/
    194#define SCB_CMDRXSUSPEND	(3 << 4)	/* Suspend reception		*/
    195#define SCB_CMDRXABORT		(4 << 4)	/* Abort reception		*/
    196#define SCB_CMDCUCSTART		(1 << 8)	/* Start (at cbl_offset)	*/
    197#define SCB_CMDCUCRESUME	(2 << 8)	/* Resume execution		*/
    198#define SCB_CMDCUCSUSPEND	(3 << 8)	/* Suspend execution		*/
    199#define SCB_CMDCUCABORT		(4 << 8)	/* Abort execution		*/
    200#define SCB_CMDACKRNR		(1 << 12)	/* Ack RU not ready		*/
    201#define SCB_CMDACKCNA		(1 << 13)	/* Ack CU not ready		*/
    202#define SCB_CMDACKFR		(1 << 14)	/* Ack Frame received		*/
    203#define SCB_CMDACKCX		(1 << 15)	/* Ack Command complete		*/
    204	unsigned short scb_cbl_offset;	/* Offset of first command unit		*/
    205	unsigned short scb_rfa_offset;	/* Offset of first receive frame area	*/
    206	unsigned short scb_crc_errors;	/* Properly aligned frame with CRC error*/
    207	unsigned short scb_aln_errors;	/* Misaligned frames			*/
    208	unsigned short scb_rsc_errors;	/* Frames lost due to no space		*/
    209	unsigned short scb_ovn_errors;	/* Frames lost due to slow bus		*/
    210} scb_t;
    211
    212typedef struct { /* iscp */
    213	unsigned short iscp_busy;	/* set by CPU before CA			*/
    214	unsigned short iscp_offset;	/* offset of SCB			*/
    215	unsigned short iscp_basel;	/* base of SCB				*/
    216	unsigned short iscp_baseh;
    217} iscp_t;
    218
    219    /* this address must be 0xfff6 */
    220typedef struct { /* scp */
    221	unsigned short scp_sysbus;	/* bus size */
    222#define SCP_SY_16BBUS	0x00
    223#define SCP_SY_8BBUS	0x01
    224	unsigned short scp_junk[2];	/* junk */
    225	unsigned short scp_iscpl;	/* lower 16 bits of iscp */
    226	unsigned short scp_iscph;	/* upper 16 bits of iscp */
    227} scp_t;
    228
    229/* commands */
    230#define CMD_NOP			0
    231#define CMD_SETADDRESS		1
    232#define CMD_CONFIG		2
    233#define CMD_SETMULTICAST	3
    234#define CMD_TX			4
    235#define CMD_TDR			5
    236#define CMD_DUMP		6
    237#define CMD_DIAGNOSE		7
    238
    239#define CMD_MASK		7
    240
    241#define CMD_INTR		(1 << 13)
    242#define CMD_SUSP		(1 << 14)
    243#define CMD_EOL			(1 << 15)
    244
    245#define STAT_COLLISIONS		(15)
    246#define STAT_COLLEXCESSIVE	(1 << 5)
    247#define STAT_COLLAFTERTX	(1 << 6)
    248#define STAT_TXDEFERRED		(1 << 7)
    249#define STAT_TXSLOWDMA		(1 << 8)
    250#define STAT_TXLOSTCTS		(1 << 9)
    251#define STAT_NOCARRIER		(1 << 10)
    252#define STAT_FAIL		(1 << 11)
    253#define STAT_ABORTED		(1 << 12)
    254#define STAT_OK			(1 << 13)
    255#define STAT_BUSY		(1 << 14)
    256#define STAT_COMPLETE		(1 << 15)
    257#endif
    258#endif
    259
    260/*
    261 * Ether1 card definitions:
    262 *
    263 * FAST accesses:
    264 *	+0	Page register
    265 * 			16 pages
    266 *	+4	Control
    267 *			'1' = reset
    268 *			'2' = loopback
    269 *			'4' = CA
    270 *			'8' = int ack
    271 *
    272 * RAM at address + 0x2000
    273 * Pod. Prod id = 3
    274 * Words after ID block [base + 8 words]
    275 *	+0 pcb issue (0x0c and 0xf3 invalid)
    276 *	+1 - +6 eth hw address
    277 */