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 macros */
45#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
46 plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
47
48#define h_free_logical_lan(ua) \
49 plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
50
51#define h_add_logical_lan_buffer(ua, buf) \
52 plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
53
54static inline long h_send_logical_lan(unsigned long unit_address,
55 unsigned long desc1, unsigned long desc2, unsigned long desc3,
56 unsigned long desc4, unsigned long desc5, unsigned long desc6,
57 unsigned long corellator_in, unsigned long *corellator_out)
58{
59 long rc;
60 unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
61
62 rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
63 desc2, desc3, desc4, desc5, desc6, corellator_in);
64
65 *corellator_out = retbuf[0];
66
67 return rc;
68}
69
70#define h_multicast_ctrl(ua, cmd, mac) \
71 plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
72
73#define h_change_logical_lan_mac(ua, mac) \
74 plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
75
76#define h_free_logical_lan_buffer(ua, bufsize) \
77 plpar_hcall_norets(H_FREE_LOGICAL_LAN_BUFFER, ua, bufsize)
78
79#define IbmVethNumBufferPools 5
80#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
81#define IBMVETH_MAX_MTU 68
82#define IBMVETH_MAX_POOL_COUNT 4096
83#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
84
85static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
86static int pool_count[] = { 256, 768, 256, 256, 256 };
87static int pool_active[] = { 1, 1, 0, 0, 0};
88
89#define IBM_VETH_INVALID_MAP ((u16)0xffff)
90
91struct ibmveth_buff_pool {
92 u32 size;
93 u32 index;
94 u32 buff_size;
95 u32 threshold;
96 atomic_t available;
97 u32 consumer_index;
98 u32 producer_index;
99 u16 *free_map;
100 dma_addr_t *dma_addr;
101 struct sk_buff **skbuff;
102 int active;
103 struct kobject kobj;
104};
105
106struct ibmveth_rx_q {
107 u64 index;
108 u64 num_slots;
109 u64 toggle;
110 dma_addr_t queue_dma;
111 u32 queue_len;
112 struct ibmveth_rx_q_entry *queue_addr;
113};
114
115struct ibmveth_adapter {
116 struct vio_dev *vdev;
117 struct net_device *netdev;
118 struct net_device_stats stats;
119 unsigned int mcastFilterSize;
120 unsigned long mac_addr;
121 void * buffer_list_addr;
122 void * filter_list_addr;
123 dma_addr_t buffer_list_dma;
124 dma_addr_t filter_list_dma;
125 struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools];
126 struct ibmveth_rx_q rx_queue;
127 int pool_config;
128
129 /* adapter specific stats */
130 u64 replenish_task_cycles;
131 u64 replenish_no_mem;
132 u64 replenish_add_buff_failure;
133 u64 replenish_add_buff_success;
134 u64 rx_invalid_buffer;
135 u64 rx_no_buffer;
136 u64 tx_multidesc_send;
137 u64 tx_linearized;
138 u64 tx_linearize_failed;
139 u64 tx_map_failed;
140 u64 tx_send_failed;
141 spinlock_t stats_lock;
142};
143
144struct ibmveth_buf_desc_fields {
145 u32 valid : 1;
146 u32 toggle : 1;
147 u32 reserved : 6;
148 u32 length : 24;
149 u32 address;
150};
151
152union ibmveth_buf_desc {
153 u64 desc;
154 struct ibmveth_buf_desc_fields fields;
155};
156
157struct ibmveth_rx_q_entry {
158 u16 toggle : 1;
159 u16 valid : 1;
160 u16 reserved : 14;
161 u16 offset;
162 u32 length;
163 u64 correlator;
164};
165
166#endif /* _IBMVETH_H */