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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osdef1st.h (3124B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/******************************************************************************
      3 *
      4 *	(C)Copyright 1998,1999 SysKonnect,
      5 *	a business unit of Schneider & Koch & Co. Datensysteme GmbH.
      6 *
      7 *	The information in this file is provided "AS IS" without warranty.
      8 *
      9 ******************************************************************************/
     10
     11/* 
     12 * Operating system-dependent definitions that have to be defined
     13 * before any other header files are included.
     14 */
     15
     16// HWM (HardWare Module) Definitions
     17// -----------------------
     18
     19#include <asm/byteorder.h>
     20
     21#ifdef __LITTLE_ENDIAN
     22#define LITTLE_ENDIAN
     23#else
     24#define BIG_ENDIAN
     25#endif
     26
     27// this is set in the makefile
     28// #define PCI			/* only PCI adapters supported by this driver */
     29// #define MEM_MAPPED_IO	/* use memory mapped I/O */
     30
     31
     32#define USE_CAN_ADDR		/* DA and SA in MAC header are canonical. */
     33
     34#define MB_OUTSIDE_SMC		/* SMT Mbufs outside of smc struct. */
     35
     36// -----------------------
     37
     38
     39// SMT Definitions 
     40// -----------------------
     41#define SYNC	       		/* allow synchronous frames */
     42
     43// #define SBA			/* Synchronous Bandwidth Allocator support */
     44				/* not available as free source */
     45
     46#define ESS			/* SBA End Station Support */
     47
     48#define	SMT_PANIC(smc, nr, msg)	printk(KERN_INFO "SMT PANIC: code: %d, msg: %s\n",nr,msg)
     49
     50
     51#ifdef DEBUG
     52#define printf(s,args...) printk(KERN_INFO s, ## args)
     53#endif
     54
     55// #define HW_PTR	u_long
     56// -----------------------
     57
     58
     59
     60// HWM and OS-specific buffer definitions
     61// -----------------------
     62
     63// default number of receive buffers.
     64#define NUM_RECEIVE_BUFFERS		10
     65
     66// default number of transmit buffers.
     67#define NUM_TRANSMIT_BUFFERS		10
     68
     69// Number of SMT buffers (Mbufs).
     70#define NUM_SMT_BUF	4
     71
     72// Number of TXDs for asynchronous transmit queue.
     73#define HWM_ASYNC_TXD_COUNT	(NUM_TRANSMIT_BUFFERS + NUM_SMT_BUF)
     74
     75// Number of TXDs for synchronous transmit queue.
     76#define HWM_SYNC_TXD_COUNT	HWM_ASYNC_TXD_COUNT
     77
     78
     79// Number of RXDs for receive queue #1.
     80// Note: Workaround for ASIC Errata #7: One extra RXD is required.
     81#if (NUM_RECEIVE_BUFFERS > 100)
     82#define SMT_R1_RXD_COUNT	(1 + 100)
     83#else
     84#define SMT_R1_RXD_COUNT	(1 + NUM_RECEIVE_BUFFERS)
     85#endif
     86
     87// Number of RXDs for receive queue #2.
     88#define SMT_R2_RXD_COUNT	0	// Not used.
     89// -----------------------
     90
     91
     92
     93/*
     94 * OS-specific part of the transmit/receive descriptor structure (TXD/RXD).
     95 *
     96 * Note: The size of these structures must follow this rule:
     97 *
     98 *	sizeof(struct) + 2*sizeof(void*) == n * 16, n >= 1
     99 *
    100 * We use the dma_addr fields under Linux to keep track of the
    101 * DMA address of the packet data, for later pci_unmap_single. -DaveM
    102 */
    103
    104struct s_txd_os {	// os-specific part of transmit descriptor
    105	struct sk_buff *skb;
    106	dma_addr_t dma_addr;
    107} ;
    108
    109struct s_rxd_os {	// os-specific part of receive descriptor
    110	struct sk_buff *skb;
    111	dma_addr_t dma_addr;
    112} ;
    113
    114
    115/*
    116 * So we do not need to make too many modifications to the generic driver
    117 * parts, we take advantage of the AIX byte swapping macro interface.
    118 */
    119
    120#define AIX_REVERSE(x)		((u32)le32_to_cpu((u32)(x)))
    121#define MDR_REVERSE(x)		((u32)le32_to_cpu((u32)(x)))