tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#define IbmVethMaxSendFrags 6
29
30/* constants for H_MULTICAST_CTRL */
31#define IbmVethMcastReceptionModifyBit 0x80000UL
32#define IbmVethMcastReceptionEnableBit 0x20000UL
33#define IbmVethMcastFilterModifyBit 0x40000UL
34#define IbmVethMcastFilterEnableBit 0x10000UL
35
36#define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit)
37#define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit)
38#define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit)
39#define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit)
40#define IbmVethMcastAddFilter 0x1UL
41#define IbmVethMcastRemoveFilter 0x2UL
42#define IbmVethMcastClearFilterTable 0x3UL
43
44/* hcall numbers */
45#define H_VIO_SIGNAL 0x104
46#define H_REGISTER_LOGICAL_LAN 0x114
47#define H_FREE_LOGICAL_LAN 0x118
48#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
49#define H_SEND_LOGICAL_LAN 0x120
50#define H_MULTICAST_CTRL 0x130
51#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
52#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
53
54/* hcall macros */
55#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
56 plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
57
58#define h_free_logical_lan(ua) \
59 plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
60
61#define h_add_logical_lan_buffer(ua, buf) \
62 plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
63
64#define h_send_logical_lan(ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator) \
65 plpar_hcall_8arg_2ret(H_SEND_LOGICAL_LAN, ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator, &correlator)
66
67#define h_multicast_ctrl(ua, cmd, mac) \
68 plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
69
70#define h_change_logical_lan_mac(ua, mac) \
71 plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
72
73#define h_free_logical_lan_buffer(ua, bufsize) \
74 plpar_hcall_norets(H_FREE_LOGICAL_LAN_BUFFER, ua, bufsize)
75
76#define IbmVethNumBufferPools 5
77#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
78
79/* pool_size should be sorted */
80static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
81static int pool_count[] = { 256, 768, 256, 256, 256 };
82
83#define IBM_VETH_INVALID_MAP ((u16)0xffff)
84
85struct ibmveth_buff_pool {
86 u32 size;
87 u32 index;
88 u32 buff_size;
89 u32 threshold;
90 atomic_t available;
91 u32 consumer_index;
92 u32 producer_index;
93 u16 *free_map;
94 dma_addr_t *dma_addr;
95 struct sk_buff **skbuff;
96 int active;
97};
98
99struct ibmveth_rx_q {
100 u64 index;
101 u64 num_slots;
102 u64 toggle;
103 dma_addr_t queue_dma;
104 u32 queue_len;
105 struct ibmveth_rx_q_entry *queue_addr;
106};
107
108struct ibmveth_adapter {
109 struct vio_dev *vdev;
110 struct net_device *netdev;
111 struct net_device_stats stats;
112 unsigned int mcastFilterSize;
113 unsigned long mac_addr;
114 unsigned long liobn;
115 void * buffer_list_addr;
116 void * filter_list_addr;
117 dma_addr_t buffer_list_dma;
118 dma_addr_t filter_list_dma;
119 struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools];
120 struct ibmveth_rx_q rx_queue;
121
122 /* adapter specific stats */
123 u64 replenish_task_cycles;
124 u64 replenish_no_mem;
125 u64 replenish_add_buff_failure;
126 u64 replenish_add_buff_success;
127 u64 rx_invalid_buffer;
128 u64 rx_no_buffer;
129 u64 tx_multidesc_send;
130 u64 tx_linearized;
131 u64 tx_linearize_failed;
132 u64 tx_map_failed;
133 u64 tx_send_failed;
134 spinlock_t stats_lock;
135};
136
137struct ibmveth_buf_desc_fields {
138 u32 valid : 1;
139 u32 toggle : 1;
140 u32 reserved : 6;
141 u32 length : 24;
142 u32 address;
143};
144
145union ibmveth_buf_desc {
146 u64 desc;
147 struct ibmveth_buf_desc_fields fields;
148};
149
150struct ibmveth_rx_q_entry {
151 u16 toggle : 1;
152 u16 valid : 1;
153 u16 reserved : 14;
154 u16 offset;
155 u32 length;
156 u64 correlator;
157};
158
159#endif /* _IBMVETH_H */