1/**************************************************************************/ 2/* */ 3/* IBM eServer i/[Series Virtual Ethernet Device Driver */ 4/* Copyright (C) 2003 IBM Corp. */ 5/* Dave Larson (larson1@us.ibm.com) */ 6/* Santiago Leon (santil@us.ibm.com) */ 7/* */ 8/* This program is free software; you can redistribute it and/or modify */ 9/* it under the terms of the GNU General Public License as published by */ 10/* the Free Software Foundation; either version 2 of the License, or */ 11/* (at your option) any later version. */ 12/* */ 13/* This program is distributed in the hope that it will be useful, */ 14/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ 15/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ 16/* GNU General Public License for more details. */ 17/* */ 18/* You should have received a copy of the GNU General Public License */ 19/* along with this program; if not, write to the Free Software */ 20/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 */ 21/* USA */ 22/* */ 23/**************************************************************************/ 24 25#ifndef _IBMVETH_H 26#define _IBMVETH_H 27 28/* constants for H_MULTICAST_CTRL */ 29#define IbmVethMcastReceptionModifyBit 0x80000UL 30#define IbmVethMcastReceptionEnableBit 0x20000UL 31#define IbmVethMcastFilterModifyBit 0x40000UL 32#define IbmVethMcastFilterEnableBit 0x10000UL 33 34#define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit) 35#define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit) 36#define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit) 37#define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit) 38#define IbmVethMcastAddFilter 0x1UL 39#define IbmVethMcastRemoveFilter 0x2UL 40#define IbmVethMcastClearFilterTable 0x3UL 41 42#define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL 43#define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL 44#define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL 45#define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL 46#define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL 47 48/* hcall macros */ 49#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \ 50 plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac) 51 52#define h_free_logical_lan(ua) \ 53 plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua) 54 55#define h_add_logical_lan_buffer(ua, buf) \ 56 plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf) 57 58static inline long h_send_logical_lan(unsigned long unit_address, 59 unsigned long desc1, unsigned long desc2, unsigned long desc3, 60 unsigned long desc4, unsigned long desc5, unsigned long desc6, 61 unsigned long corellator_in, unsigned long *corellator_out) 62{ 63 long rc; 64 unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; 65 66 rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1, 67 desc2, desc3, desc4, desc5, desc6, corellator_in); 68 69 *corellator_out = retbuf[0]; 70 71 return rc; 72} 73 74static inline long h_illan_attributes(unsigned long unit_address, 75 unsigned long reset_mask, unsigned long set_mask, 76 unsigned long *ret_attributes) 77{ 78 long rc; 79 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 80 81 rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address, 82 reset_mask, set_mask); 83 84 *ret_attributes = retbuf[0]; 85 86 return rc; 87} 88 89#define h_multicast_ctrl(ua, cmd, mac) \ 90 plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac) 91 92#define h_change_logical_lan_mac(ua, mac) \ 93 plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac) 94 95#define IbmVethNumBufferPools 5 96#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */ 97#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */ 98#define IBMVETH_MAX_MTU 68 99#define IBMVETH_MAX_POOL_COUNT 4096 100#define IBMVETH_BUFF_LIST_SIZE 4096 101#define IBMVETH_FILT_LIST_SIZE 4096 102#define IBMVETH_MAX_BUF_SIZE (1024 * 128) 103 104static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 }; 105static int pool_count[] = { 256, 768, 256, 256, 256 }; 106static int pool_active[] = { 1, 1, 0, 0, 0}; 107 108#define IBM_VETH_INVALID_MAP ((u16)0xffff) 109 110struct ibmveth_buff_pool { 111 u32 size; 112 u32 index; 113 u32 buff_size; 114 u32 threshold; 115 atomic_t available; 116 u32 consumer_index; 117 u32 producer_index; 118 u16 *free_map; 119 dma_addr_t *dma_addr; 120 struct sk_buff **skbuff; 121 int active; 122 struct kobject kobj; 123}; 124 125struct ibmveth_rx_q { 126 u64 index; 127 u64 num_slots; 128 u64 toggle; 129 dma_addr_t queue_dma; 130 u32 queue_len; 131 struct ibmveth_rx_q_entry *queue_addr; 132}; 133 134struct ibmveth_adapter { 135 struct vio_dev *vdev; 136 struct net_device *netdev; 137 struct napi_struct napi; 138 struct net_device_stats stats; 139 unsigned int mcastFilterSize; 140 unsigned long mac_addr; 141 void * buffer_list_addr; 142 void * filter_list_addr; 143 dma_addr_t buffer_list_dma; 144 dma_addr_t filter_list_dma; 145 struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools]; 146 struct ibmveth_rx_q rx_queue; 147 int pool_config; 148 int rx_csum; 149 void *bounce_buffer; 150 dma_addr_t bounce_buffer_dma; 151 152 /* adapter specific stats */ 153 u64 replenish_task_cycles; 154 u64 replenish_no_mem; 155 u64 replenish_add_buff_failure; 156 u64 replenish_add_buff_success; 157 u64 rx_invalid_buffer; 158 u64 rx_no_buffer; 159 u64 tx_map_failed; 160 u64 tx_send_failed; 161 spinlock_t stats_lock; 162}; 163 164struct ibmveth_buf_desc_fields { 165 u32 flags_len; 166#define IBMVETH_BUF_VALID 0x80000000 167#define IBMVETH_BUF_TOGGLE 0x40000000 168#define IBMVETH_BUF_NO_CSUM 0x02000000 169#define IBMVETH_BUF_CSUM_GOOD 0x01000000 170#define IBMVETH_BUF_LEN_MASK 0x00FFFFFF 171 u32 address; 172}; 173 174union ibmveth_buf_desc { 175 u64 desc; 176 struct ibmveth_buf_desc_fields fields; 177}; 178 179struct ibmveth_rx_q_entry { 180 u32 flags_off; 181#define IBMVETH_RXQ_TOGGLE 0x80000000 182#define IBMVETH_RXQ_TOGGLE_SHIFT 31 183#define IBMVETH_RXQ_VALID 0x40000000 184#define IBMVETH_RXQ_NO_CSUM 0x02000000 185#define IBMVETH_RXQ_CSUM_GOOD 0x01000000 186#define IBMVETH_RXQ_OFF_MASK 0x0000FFFF 187 188 u32 length; 189 u64 correlator; 190}; 191 192#endif /* _IBMVETH_H */ 193