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9d348af4 SL |
1 | /* |
2 | * IBM Power Virtual Ethernet Device Driver | |
3 | * | |
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. | |
8 | * | |
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. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
0ab75ae8 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
9d348af4 SL |
16 | * |
17 | * Copyright (C) IBM Corporation, 2003, 2010 | |
18 | * | |
19 | * Authors: Dave Larson <larson1@us.ibm.com> | |
20 | * Santiago Leon <santil@linux.vnet.ibm.com> | |
21 | * Brian King <brking@linux.vnet.ibm.com> | |
22 | * Robert Jennings <rcj@linux.vnet.ibm.com> | |
23 | * Anton Blanchard <anton@au.ibm.com> | |
24 | */ | |
1da177e4 LT |
25 | |
26 | #ifndef _IBMVETH_H | |
27 | #define _IBMVETH_H | |
28 | ||
1da177e4 LT |
29 | /* constants for H_MULTICAST_CTRL */ |
30 | #define IbmVethMcastReceptionModifyBit 0x80000UL | |
31 | #define IbmVethMcastReceptionEnableBit 0x20000UL | |
32 | #define IbmVethMcastFilterModifyBit 0x40000UL | |
33 | #define IbmVethMcastFilterEnableBit 0x10000UL | |
34 | ||
35 | #define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit) | |
36 | #define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit) | |
37 | #define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit) | |
38 | #define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit) | |
39 | #define IbmVethMcastAddFilter 0x1UL | |
40 | #define IbmVethMcastRemoveFilter 0x2UL | |
41 | #define IbmVethMcastClearFilterTable 0x3UL | |
42 | ||
07e6a97d TF |
43 | #define IBMVETH_ILLAN_LRG_SR_ENABLED 0x0000000000010000UL |
44 | #define IBMVETH_ILLAN_LRG_SND_SUPPORT 0x0000000000008000UL | |
ff5bfc35 SR |
45 | #define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL |
46 | #define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL | |
47 | #define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL | |
48 | #define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL | |
49 | #define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL | |
79ef4a4d | 50 | |
1da177e4 LT |
51 | /* hcall macros */ |
52 | #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \ | |
53 | plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac) | |
54 | ||
55 | #define h_free_logical_lan(ua) \ | |
56 | plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua) | |
57 | ||
58 | #define h_add_logical_lan_buffer(ua, buf) \ | |
59 | plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf) | |
60 | ||
b9377ffc AB |
61 | static inline long h_send_logical_lan(unsigned long unit_address, |
62 | unsigned long desc1, unsigned long desc2, unsigned long desc3, | |
63 | unsigned long desc4, unsigned long desc5, unsigned long desc6, | |
07e6a97d TF |
64 | unsigned long corellator_in, unsigned long *corellator_out, |
65 | unsigned long mss, unsigned long large_send_support) | |
b9377ffc AB |
66 | { |
67 | long rc; | |
68 | unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; | |
69 | ||
07e6a97d TF |
70 | if (large_send_support) |
71 | rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, | |
72 | desc1, desc2, desc3, desc4, desc5, desc6, | |
73 | corellator_in, mss); | |
74 | else | |
75 | rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, | |
76 | desc1, desc2, desc3, desc4, desc5, desc6, | |
77 | corellator_in); | |
b9377ffc AB |
78 | |
79 | *corellator_out = retbuf[0]; | |
80 | ||
81 | return rc; | |
82 | } | |
1da177e4 | 83 | |
f4ff2872 BK |
84 | static inline long h_illan_attributes(unsigned long unit_address, |
85 | unsigned long reset_mask, unsigned long set_mask, | |
86 | unsigned long *ret_attributes) | |
87 | { | |
88 | long rc; | |
89 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
90 | ||
91 | rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address, | |
92 | reset_mask, set_mask); | |
93 | ||
94 | *ret_attributes = retbuf[0]; | |
95 | ||
96 | return rc; | |
97 | } | |
98 | ||
1da177e4 LT |
99 | #define h_multicast_ctrl(ua, cmd, mac) \ |
100 | plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac) | |
101 | ||
102 | #define h_change_logical_lan_mac(ua, mac) \ | |
103 | plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac) | |
104 | ||
517e80e6 | 105 | #define IBMVETH_NUM_BUFF_POOLS 5 |
1096d63d | 106 | #define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */ |
b6d35182 | 107 | #define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */ |
517e80e6 | 108 | #define IBMVETH_MIN_MTU 68 |
860f242e | 109 | #define IBMVETH_MAX_POOL_COUNT 4096 |
1096d63d RJ |
110 | #define IBMVETH_BUFF_LIST_SIZE 4096 |
111 | #define IBMVETH_FILT_LIST_SIZE 4096 | |
860f242e | 112 | #define IBMVETH_MAX_BUF_SIZE (1024 * 128) |
b6d35182 | 113 | |
b6d35182 | 114 | static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 }; |
c033a6d1 | 115 | static int pool_count[] = { 256, 512, 256, 256, 256 }; |
cd7c7ec3 TF |
116 | static int pool_count_cmo[] = { 256, 512, 256, 256, 64 }; |
117 | static int pool_active[] = { 1, 1, 0, 0, 1}; | |
1da177e4 LT |
118 | |
119 | #define IBM_VETH_INVALID_MAP ((u16)0xffff) | |
120 | ||
121 | struct ibmveth_buff_pool { | |
122 | u32 size; | |
123 | u32 index; | |
124 | u32 buff_size; | |
125 | u32 threshold; | |
126 | atomic_t available; | |
127 | u32 consumer_index; | |
128 | u32 producer_index; | |
129 | u16 *free_map; | |
130 | dma_addr_t *dma_addr; | |
131 | struct sk_buff **skbuff; | |
b6d35182 | 132 | int active; |
860f242e | 133 | struct kobject kobj; |
1da177e4 LT |
134 | }; |
135 | ||
136 | struct ibmveth_rx_q { | |
137 | u64 index; | |
138 | u64 num_slots; | |
139 | u64 toggle; | |
140 | dma_addr_t queue_dma; | |
141 | u32 queue_len; | |
142 | struct ibmveth_rx_q_entry *queue_addr; | |
143 | }; | |
144 | ||
145 | struct ibmveth_adapter { | |
146 | struct vio_dev *vdev; | |
147 | struct net_device *netdev; | |
bea3348e | 148 | struct napi_struct napi; |
1da177e4 LT |
149 | struct net_device_stats stats; |
150 | unsigned int mcastFilterSize; | |
1da177e4 LT |
151 | void * buffer_list_addr; |
152 | void * filter_list_addr; | |
153 | dma_addr_t buffer_list_dma; | |
154 | dma_addr_t filter_list_dma; | |
517e80e6 | 155 | struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS]; |
1da177e4 | 156 | struct ibmveth_rx_q rx_queue; |
860f242e | 157 | int pool_config; |
5fc7e01c | 158 | int rx_csum; |
07e6a97d | 159 | int large_send; |
1096d63d RJ |
160 | void *bounce_buffer; |
161 | dma_addr_t bounce_buffer_dma; | |
1da177e4 | 162 | |
ab78df75 SL |
163 | u64 fw_ipv6_csum_support; |
164 | u64 fw_ipv4_csum_support; | |
07e6a97d | 165 | u64 fw_large_send_support; |
1da177e4 LT |
166 | /* adapter specific stats */ |
167 | u64 replenish_task_cycles; | |
168 | u64 replenish_no_mem; | |
169 | u64 replenish_add_buff_failure; | |
170 | u64 replenish_add_buff_success; | |
171 | u64 rx_invalid_buffer; | |
172 | u64 rx_no_buffer; | |
1da177e4 LT |
173 | u64 tx_map_failed; |
174 | u64 tx_send_failed; | |
8641dd85 | 175 | u64 tx_large_packets; |
9c7e8bc5 | 176 | u64 rx_large_packets; |
1da177e4 LT |
177 | }; |
178 | ||
0b536be7 AB |
179 | /* |
180 | * We pass struct ibmveth_buf_desc_fields to the hypervisor in registers, | |
181 | * so we don't need to byteswap the two elements. However since we use | |
182 | * a union (ibmveth_buf_desc) to convert from the struct to a u64 we | |
183 | * do end up with endian specific ordering of the elements and that | |
184 | * needs correcting. | |
185 | */ | |
d7fbeba6 | 186 | struct ibmveth_buf_desc_fields { |
0b536be7 AB |
187 | #ifdef __BIG_ENDIAN |
188 | u32 flags_len; | |
189 | u32 address; | |
190 | #else | |
191 | u32 address; | |
79ef4a4d | 192 | u32 flags_len; |
0b536be7 | 193 | #endif |
79ef4a4d BK |
194 | #define IBMVETH_BUF_VALID 0x80000000 |
195 | #define IBMVETH_BUF_TOGGLE 0x40000000 | |
07e6a97d | 196 | #define IBMVETH_BUF_LRG_SND 0x04000000 |
79ef4a4d BK |
197 | #define IBMVETH_BUF_NO_CSUM 0x02000000 |
198 | #define IBMVETH_BUF_CSUM_GOOD 0x01000000 | |
199 | #define IBMVETH_BUF_LEN_MASK 0x00FFFFFF | |
1da177e4 LT |
200 | }; |
201 | ||
202 | union ibmveth_buf_desc { | |
d7fbeba6 | 203 | u64 desc; |
1da177e4 LT |
204 | struct ibmveth_buf_desc_fields fields; |
205 | }; | |
206 | ||
207 | struct ibmveth_rx_q_entry { | |
0b536be7 | 208 | __be32 flags_off; |
79ef4a4d BK |
209 | #define IBMVETH_RXQ_TOGGLE 0x80000000 |
210 | #define IBMVETH_RXQ_TOGGLE_SHIFT 31 | |
211 | #define IBMVETH_RXQ_VALID 0x40000000 | |
212 | #define IBMVETH_RXQ_NO_CSUM 0x02000000 | |
213 | #define IBMVETH_RXQ_CSUM_GOOD 0x01000000 | |
214 | #define IBMVETH_RXQ_OFF_MASK 0x0000FFFF | |
215 | ||
0b536be7 AB |
216 | __be32 length; |
217 | /* correlator is only used by the OS, no need to byte swap */ | |
79ef4a4d | 218 | u64 correlator; |
1da177e4 LT |
219 | }; |
220 | ||
221 | #endif /* _IBMVETH_H */ |