/* * IBM Power Virtual Ethernet Device Driver * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * Copyright (C) IBM Corporation, 2003, 2010 * * Authors: Dave Larson * Santiago Leon * Brian King * Robert Jennings * Anton Blanchard */ #ifndef _IBMVETH_H #define _IBMVETH_H /* constants for H_MULTICAST_CTRL */ #define IbmVethMcastReceptionModifyBit 0x80000UL #define IbmVethMcastReceptionEnableBit 0x20000UL #define IbmVethMcastFilterModifyBit 0x40000UL #define IbmVethMcastFilterEnableBit 0x10000UL #define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit) #define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit) #define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit) #define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit) #define IbmVethMcastAddFilter 0x1UL #define IbmVethMcastRemoveFilter 0x2UL #define IbmVethMcastClearFilterTable 0x3UL #define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL #define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL #define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL #define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL #define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL /* hcall macros */ #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \ plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac) #define h_free_logical_lan(ua) \ plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua) #define h_add_logical_lan_buffer(ua, buf) \ plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf) static inline long h_send_logical_lan(unsigned long unit_address, unsigned long desc1, unsigned long desc2, unsigned long desc3, unsigned long desc4, unsigned long desc5, unsigned long desc6, unsigned long corellator_in, unsigned long *corellator_out) { long rc; unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1, desc2, desc3, desc4, desc5, desc6, corellator_in); *corellator_out = retbuf[0]; return rc; } static inline long h_illan_attributes(unsigned long unit_address, unsigned long reset_mask, unsigned long set_mask, unsigned long *ret_attributes) { long rc; unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address, reset_mask, set_mask); *ret_attributes = retbuf[0]; return rc; } #define h_multicast_ctrl(ua, cmd, mac) \ plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac) #define h_change_logical_lan_mac(ua, mac) \ plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac) #define IBMVETH_NUM_BUFF_POOLS 5 #define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */ #define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */ #define IBMVETH_MIN_MTU 68 #define IBMVETH_MAX_POOL_COUNT 4096 #define IBMVETH_BUFF_LIST_SIZE 4096 #define IBMVETH_FILT_LIST_SIZE 4096 #define IBMVETH_MAX_BUF_SIZE (1024 * 128) static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 }; static int pool_count[] = { 256, 512, 256, 256, 256 }; static int pool_active[] = { 1, 1, 0, 0, 0}; #define IBM_VETH_INVALID_MAP ((u16)0xffff) struct ibmveth_buff_pool { u32 size; u32 index; u32 buff_size; u32 threshold; atomic_t available; u32 consumer_index; u32 producer_index; u16 *free_map; dma_addr_t *dma_addr; struct sk_buff **skbuff; int active; struct kobject kobj; }; struct ibmveth_rx_q { u64 index; u64 num_slots; u64 toggle; dma_addr_t queue_dma; u32 queue_len; struct ibmveth_rx_q_entry *queue_addr; }; struct ibmveth_adapter { struct vio_dev *vdev; struct net_device *netdev; struct napi_struct napi; struct net_device_stats stats; unsigned int mcastFilterSize; unsigned long mac_addr; void * buffer_list_addr; void * filter_list_addr; dma_addr_t buffer_list_dma; dma_addr_t filter_list_dma; struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS]; struct ibmveth_rx_q rx_queue; int pool_config; int rx_csum; void *bounce_buffer; dma_addr_t bounce_buffer_dma; u64 fw_ipv6_csum_support; u64 fw_ipv4_csum_support; /* adapter specific stats */ u64 replenish_task_cycles; u64 replenish_no_mem; u64 replenish_add_buff_failure; u64 replenish_add_buff_success; u64 rx_invalid_buffer; u64 rx_no_buffer; u64 tx_map_failed; u64 tx_send_failed; }; /* * We pass struct ibmveth_buf_desc_fields to the hypervisor in registers, * so we don't need to byteswap the two elements. However since we use * a union (ibmveth_buf_desc) to convert from the struct to a u64 we * do end up with endian specific ordering of the elements and that * needs correcting. */ struct ibmveth_buf_desc_fields { #ifdef __BIG_ENDIAN u32 flags_len; u32 address; #else u32 address; u32 flags_len; #endif #define IBMVETH_BUF_VALID 0x80000000 #define IBMVETH_BUF_TOGGLE 0x40000000 #define IBMVETH_BUF_NO_CSUM 0x02000000 #define IBMVETH_BUF_CSUM_GOOD 0x01000000 #define IBMVETH_BUF_LEN_MASK 0x00FFFFFF }; union ibmveth_buf_desc { u64 desc; struct ibmveth_buf_desc_fields fields; }; struct ibmveth_rx_q_entry { __be32 flags_off; #define IBMVETH_RXQ_TOGGLE 0x80000000 #define IBMVETH_RXQ_TOGGLE_SHIFT 31 #define IBMVETH_RXQ_VALID 0x40000000 #define IBMVETH_RXQ_NO_CSUM 0x02000000 #define IBMVETH_RXQ_CSUM_GOOD 0x01000000 #define IBMVETH_RXQ_OFF_MASK 0x0000FFFF __be32 length; /* correlator is only used by the OS, no need to byte swap */ u64 correlator; }; #endif /* _IBMVETH_H */