cifs: add fallback in is_path_accessible for old servers
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / ibmveth.h
blob43a794fab9ff9e2b0e9998ceaa887d1973562059
1 /*
2 * IBM Power Virtual Ethernet Device Driver
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 * Copyright (C) IBM Corporation, 2003, 2010
20 * Authors: Dave Larson <larson1@us.ibm.com>
21 * Santiago Leon <santil@linux.vnet.ibm.com>
22 * Brian King <brking@linux.vnet.ibm.com>
23 * Robert Jennings <rcj@linux.vnet.ibm.com>
24 * Anton Blanchard <anton@au.ibm.com>
27 #ifndef _IBMVETH_H
28 #define _IBMVETH_H
30 /* constants for H_MULTICAST_CTRL */
31 #define IbmVethMcastReceptionModifyBit 0x80000UL
32 #define IbmVethMcastReceptionEnableBit 0x20000UL
33 #define IbmVethMcastFilterModifyBit 0x40000UL
34 #define IbmVethMcastFilterEnableBit 0x10000UL
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
44 #define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL
45 #define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL
46 #define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL
47 #define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL
48 #define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL
50 /* hcall macros */
51 #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
52 plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
54 #define h_free_logical_lan(ua) \
55 plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
57 #define h_add_logical_lan_buffer(ua, buf) \
58 plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
60 static inline long h_send_logical_lan(unsigned long unit_address,
61 unsigned long desc1, unsigned long desc2, unsigned long desc3,
62 unsigned long desc4, unsigned long desc5, unsigned long desc6,
63 unsigned long corellator_in, unsigned long *corellator_out)
65 long rc;
66 unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
68 rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
69 desc2, desc3, desc4, desc5, desc6, corellator_in);
71 *corellator_out = retbuf[0];
73 return rc;
76 static inline long h_illan_attributes(unsigned long unit_address,
77 unsigned long reset_mask, unsigned long set_mask,
78 unsigned long *ret_attributes)
80 long rc;
81 unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
83 rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address,
84 reset_mask, set_mask);
86 *ret_attributes = retbuf[0];
88 return rc;
91 #define h_multicast_ctrl(ua, cmd, mac) \
92 plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
94 #define h_change_logical_lan_mac(ua, mac) \
95 plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
97 #define IBMVETH_NUM_BUFF_POOLS 5
98 #define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
99 #define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
100 #define IBMVETH_MIN_MTU 68
101 #define IBMVETH_MAX_POOL_COUNT 4096
102 #define IBMVETH_BUFF_LIST_SIZE 4096
103 #define IBMVETH_FILT_LIST_SIZE 4096
104 #define IBMVETH_MAX_BUF_SIZE (1024 * 128)
106 static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
107 static int pool_count[] = { 256, 512, 256, 256, 256 };
108 static int pool_active[] = { 1, 1, 0, 0, 0};
110 #define IBM_VETH_INVALID_MAP ((u16)0xffff)
112 struct ibmveth_buff_pool {
113 u32 size;
114 u32 index;
115 u32 buff_size;
116 u32 threshold;
117 atomic_t available;
118 u32 consumer_index;
119 u32 producer_index;
120 u16 *free_map;
121 dma_addr_t *dma_addr;
122 struct sk_buff **skbuff;
123 int active;
124 struct kobject kobj;
127 struct ibmveth_rx_q {
128 u64 index;
129 u64 num_slots;
130 u64 toggle;
131 dma_addr_t queue_dma;
132 u32 queue_len;
133 struct ibmveth_rx_q_entry *queue_addr;
136 struct ibmveth_adapter {
137 struct vio_dev *vdev;
138 struct net_device *netdev;
139 struct napi_struct napi;
140 struct net_device_stats stats;
141 unsigned int mcastFilterSize;
142 unsigned long mac_addr;
143 void * buffer_list_addr;
144 void * filter_list_addr;
145 dma_addr_t buffer_list_dma;
146 dma_addr_t filter_list_dma;
147 struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS];
148 struct ibmveth_rx_q rx_queue;
149 int pool_config;
150 int rx_csum;
151 void *bounce_buffer;
152 dma_addr_t bounce_buffer_dma;
154 u64 fw_ipv6_csum_support;
155 u64 fw_ipv4_csum_support;
156 /* adapter specific stats */
157 u64 replenish_task_cycles;
158 u64 replenish_no_mem;
159 u64 replenish_add_buff_failure;
160 u64 replenish_add_buff_success;
161 u64 rx_invalid_buffer;
162 u64 rx_no_buffer;
163 u64 tx_map_failed;
164 u64 tx_send_failed;
167 struct ibmveth_buf_desc_fields {
168 u32 flags_len;
169 #define IBMVETH_BUF_VALID 0x80000000
170 #define IBMVETH_BUF_TOGGLE 0x40000000
171 #define IBMVETH_BUF_NO_CSUM 0x02000000
172 #define IBMVETH_BUF_CSUM_GOOD 0x01000000
173 #define IBMVETH_BUF_LEN_MASK 0x00FFFFFF
174 u32 address;
177 union ibmveth_buf_desc {
178 u64 desc;
179 struct ibmveth_buf_desc_fields fields;
182 struct ibmveth_rx_q_entry {
183 u32 flags_off;
184 #define IBMVETH_RXQ_TOGGLE 0x80000000
185 #define IBMVETH_RXQ_TOGGLE_SHIFT 31
186 #define IBMVETH_RXQ_VALID 0x40000000
187 #define IBMVETH_RXQ_NO_CSUM 0x02000000
188 #define IBMVETH_RXQ_CSUM_GOOD 0x01000000
189 #define IBMVETH_RXQ_OFF_MASK 0x0000FFFF
191 u32 length;
192 u64 correlator;
195 #endif /* _IBMVETH_H */