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 */ 103 104 struct s_txd_os { // os-specific part of transmit descriptor 105 struct sk_buff *skb; 106 dma_addr_t dma_addr; 107 } ; 108 109 struct 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))) 122