projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | /*lcs.h*/ |
| 3 | ||
| 4 | #include <linux/interrupt.h> | |
| 5 | #include <linux/netdevice.h> | |
| 6 | #include <linux/skbuff.h> | |
| 7 | #include <linux/workqueue.h> | |
| 8 | #include <asm/ccwdev.h> | |
| 9 | ||
| 1da177e4 LT |
10 | #define LCS_DBF_TEXT(level, name, text) \ |
| 11 | do { \ | |
| 12 | debug_text_event(lcs_dbf_##name, level, text); \ | |
| 13 | } while (0) | |
| 14 | ||
| 15 | #define LCS_DBF_HEX(level,name,addr,len) \ | |
| 16 | do { \ | |
| 17 | debug_event(lcs_dbf_##name,level,(void*)(addr),len); \ | |
| 18 | } while (0) | |
| 19 | ||
| 20 | #define LCS_DBF_TEXT_(level,name,text...) \ | |
| f33780d3 | 21 | do { \ |
| 8e6a8285 | 22 | if (debug_level_enabled(lcs_dbf_##name, level)) { \ |
| f33780d3 PT |
23 | sprintf(debug_buffer, text); \ |
| 24 | debug_text_event(lcs_dbf_##name, level, debug_buffer); \ | |
| 25 | } \ | |
| 26 | } while (0) | |
| 1da177e4 | 27 | |
| 1da177e4 LT |
28 | /** |
| 29 | * sysfs related stuff | |
| 30 | */ | |
| 31 | #define CARD_FROM_DEV(cdev) \ | |
| dff59b64 GKH |
32 | (struct lcs_card *) dev_get_drvdata( \ |
| 33 | &((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev); | |
| 0ca8cc6f UB |
34 | |
| 35 | /** | |
| 36 | * Enum for classifying detected devices. | |
| 37 | */ | |
| 38 | enum lcs_channel_types { | |
| 39 | /* Device is not a channel */ | |
| 40 | lcs_channel_type_none, | |
| 41 | ||
| 42 | /* Device is a 2216 channel */ | |
| 43 | lcs_channel_type_parallel, | |
| 44 | ||
| 45 | /* Device is a 2216 channel */ | |
| 46 | lcs_channel_type_2216, | |
| 47 | ||
| 48 | /* Device is a OSA2 card */ | |
| 49 | lcs_channel_type_osa2 | |
| 50 | }; | |
| 51 | ||
| 1da177e4 LT |
52 | /** |
| 53 | * CCW commands used in this driver | |
| 54 | */ | |
| 55 | #define LCS_CCW_WRITE 0x01 | |
| 56 | #define LCS_CCW_READ 0x02 | |
| 57 | #define LCS_CCW_TRANSFER 0x08 | |
| 58 | ||
| 59 | /** | |
| 60 | * LCS device status primitives | |
| 61 | */ | |
| 62 | #define LCS_CMD_STARTLAN 0x01 | |
| 63 | #define LCS_CMD_STOPLAN 0x02 | |
| 64 | #define LCS_CMD_LANSTAT 0x04 | |
| 65 | #define LCS_CMD_STARTUP 0x07 | |
| 66 | #define LCS_CMD_SHUTDOWN 0x08 | |
| 67 | #define LCS_CMD_QIPASSIST 0xb2 | |
| 68 | #define LCS_CMD_SETIPM 0xb4 | |
| 69 | #define LCS_CMD_DELIPM 0xb5 | |
| 70 | ||
| 71 | #define LCS_INITIATOR_TCPIP 0x00 | |
| 72 | #define LCS_INITIATOR_LGW 0x01 | |
| 73 | #define LCS_STD_CMD_SIZE 16 | |
| 74 | #define LCS_MULTICAST_CMD_SIZE 404 | |
| 75 | ||
| 76 | /** | |
| 77 | * LCS IPASSIST MASKS,only used when multicast is switched on | |
| 78 | */ | |
| 79 | /* Not supported by LCS */ | |
| 80 | #define LCS_IPASS_ARP_PROCESSING 0x0001 | |
| 81 | #define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002 | |
| 82 | #define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004 | |
| 83 | #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 | |
| 84 | #define LCS_IPASS_IP_FILTERING 0x0010 | |
| 85 | /* Supported by lcs 3172 */ | |
| 86 | #define LCS_IPASS_IPV6_SUPPORT 0x0020 | |
| 87 | #define LCS_IPASS_MULTICAST_SUPPORT 0x0040 | |
| 88 | ||
| 89 | /** | |
| 90 | * LCS sense byte definitions | |
| 91 | */ | |
| 74ef872c KW |
92 | #define LCS_SENSE_BYTE_0 0 |
| 93 | #define LCS_SENSE_BYTE_1 1 | |
| 94 | #define LCS_SENSE_BYTE_2 2 | |
| 95 | #define LCS_SENSE_BYTE_3 3 | |
| 1da177e4 LT |
96 | #define LCS_SENSE_INTERFACE_DISCONNECT 0x01 |
| 97 | #define LCS_SENSE_EQUIPMENT_CHECK 0x10 | |
| 98 | #define LCS_SENSE_BUS_OUT_CHECK 0x20 | |
| 99 | #define LCS_SENSE_INTERVENTION_REQUIRED 0x40 | |
| 100 | #define LCS_SENSE_CMD_REJECT 0x80 | |
| 74ef872c KW |
101 | #define LCS_SENSE_RESETTING_EVENT 0x80 |
| 102 | #define LCS_SENSE_DEVICE_ONLINE 0x20 | |
| 1da177e4 LT |
103 | |
| 104 | /** | |
| 105 | * LCS packet type definitions | |
| 106 | */ | |
| 107 | #define LCS_FRAME_TYPE_CONTROL 0 | |
| 108 | #define LCS_FRAME_TYPE_ENET 1 | |
| 109 | #define LCS_FRAME_TYPE_TR 2 | |
| 110 | #define LCS_FRAME_TYPE_FDDI 7 | |
| 111 | #define LCS_FRAME_TYPE_AUTO -1 | |
| 112 | ||
| 113 | /** | |
| 114 | * some more definitions,we will sort them later | |
| 115 | */ | |
| 116 | #define LCS_ILLEGAL_OFFSET 0xffff | |
| 117 | #define LCS_IOBUFFERSIZE 0x5000 | |
| 0d613a27 | 118 | #define LCS_NUM_BUFFS 32 /* needs to be power of 2 */ |
| 1da177e4 LT |
119 | #define LCS_MAC_LENGTH 6 |
| 120 | #define LCS_INVALID_PORT_NO -1 | |
| 121 | #define LCS_LANCMD_TIMEOUT_DEFAULT 5 | |
| 122 | ||
| 123 | /** | |
| 124 | * Multicast state | |
| 125 | */ | |
| 126 | #define LCS_IPM_STATE_SET_REQUIRED 0 | |
| 127 | #define LCS_IPM_STATE_DEL_REQUIRED 1 | |
| 128 | #define LCS_IPM_STATE_ON_CARD 2 | |
| 129 | ||
| 130 | /** | |
| 131 | * LCS IP Assist declarations | |
| 132 | * seems to be only used for multicast | |
| 133 | */ | |
| 134 | #define LCS_IPASS_ARP_PROCESSING 0x0001 | |
| 135 | #define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002 | |
| 136 | #define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004 | |
| 137 | #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 | |
| 138 | #define LCS_IPASS_IP_FILTERING 0x0010 | |
| 139 | #define LCS_IPASS_IPV6_SUPPORT 0x0020 | |
| 140 | #define LCS_IPASS_MULTICAST_SUPPORT 0x0040 | |
| 141 | ||
| 142 | /** | |
| 143 | * LCS Buffer states | |
| 144 | */ | |
| 145 | enum lcs_buffer_states { | |
| 9163bb2e UB |
146 | LCS_BUF_STATE_EMPTY, /* buffer is empty */ |
| 147 | LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */ | |
| 148 | LCS_BUF_STATE_READY, /* buffer is ready for read/write */ | |
| 149 | LCS_BUF_STATE_PROCESSED, | |
| 1da177e4 LT |
150 | }; |
| 151 | ||
| 152 | /** | |
| 153 | * LCS Channel State Machine declarations | |
| 154 | */ | |
| 155 | enum lcs_channel_states { | |
| 9163bb2e UB |
156 | LCS_CH_STATE_INIT, |
| 157 | LCS_CH_STATE_HALTED, | |
| 158 | LCS_CH_STATE_STOPPED, | |
| 159 | LCS_CH_STATE_RUNNING, | |
| 160 | LCS_CH_STATE_SUSPENDED, | |
| 161 | LCS_CH_STATE_CLEARED, | |
| 59579da3 | 162 | LCS_CH_STATE_ERROR, |
| 1da177e4 LT |
163 | }; |
| 164 | ||
| 165 | /** | |
| 166 | * LCS device state machine | |
| 167 | */ | |
| 168 | enum lcs_dev_states { | |
| 169 | DEV_STATE_DOWN, | |
| 170 | DEV_STATE_UP, | |
| 171 | DEV_STATE_RECOVER, | |
| 172 | }; | |
| 173 | ||
| 174 | enum lcs_threads { | |
| 175 | LCS_SET_MC_THREAD = 1, | |
| 74ef872c | 176 | LCS_RECOVERY_THREAD = 2, |
| 1da177e4 | 177 | }; |
| 74ef872c | 178 | |
| 1da177e4 LT |
179 | /** |
| 180 | * LCS struct declarations | |
| 181 | */ | |
| 182 | struct lcs_header { | |
| 183 | __u16 offset; | |
| 184 | __u8 type; | |
| 185 | __u8 slot; | |
| 186 | } __attribute__ ((packed)); | |
| 187 | ||
| 188 | struct lcs_ip_mac_pair { | |
| 5a5a852e | 189 | __be32 ip_addr; |
| 1da177e4 LT |
190 | __u8 mac_addr[LCS_MAC_LENGTH]; |
| 191 | __u8 reserved[2]; | |
| 192 | } __attribute__ ((packed)); | |
| 193 | ||
| 194 | struct lcs_ipm_list { | |
| 195 | struct list_head list; | |
| 196 | struct lcs_ip_mac_pair ipm; | |
| 197 | __u8 ipm_state; | |
| 198 | }; | |
| 199 | ||
| 200 | struct lcs_cmd { | |
| 201 | __u16 offset; | |
| 202 | __u8 type; | |
| 203 | __u8 slot; | |
| 204 | __u8 cmd_code; | |
| 205 | __u8 initiator; | |
| 206 | __u16 sequence_no; | |
| 207 | __u16 return_code; | |
| 208 | union { | |
| 209 | struct { | |
| 210 | __u8 lan_type; | |
| 211 | __u8 portno; | |
| 212 | __u16 parameter_count; | |
| 213 | __u8 operator_flags[3]; | |
| 214 | __u8 reserved[3]; | |
| 215 | } lcs_std_cmd; | |
| 216 | struct { | |
| 217 | __u16 unused1; | |
| 218 | __u16 buff_size; | |
| 219 | __u8 unused2[6]; | |
| 220 | } lcs_startup; | |
| 221 | struct { | |
| 222 | __u8 lan_type; | |
| 223 | __u8 portno; | |
| 224 | __u8 unused[10]; | |
| 225 | __u8 mac_addr[LCS_MAC_LENGTH]; | |
| 226 | __u32 num_packets_deblocked; | |
| 227 | __u32 num_packets_blocked; | |
| 228 | __u32 num_packets_tx_on_lan; | |
| 229 | __u32 num_tx_errors_detected; | |
| 230 | __u32 num_tx_packets_disgarded; | |
| 231 | __u32 num_packets_rx_from_lan; | |
| 232 | __u32 num_rx_errors_detected; | |
| 233 | __u32 num_rx_discarded_nobuffs_avail; | |
| 234 | __u32 num_rx_packets_too_large; | |
| 235 | } lcs_lanstat_cmd; | |
| 236 | #ifdef CONFIG_IP_MULTICAST | |
| 237 | struct { | |
| 238 | __u8 lan_type; | |
| 239 | __u8 portno; | |
| 240 | __u16 num_ip_pairs; | |
| 241 | __u16 ip_assists_supported; | |
| 242 | __u16 ip_assists_enabled; | |
| 243 | __u16 version; | |
| 244 | struct { | |
| 245 | struct lcs_ip_mac_pair | |
| 246 | ip_mac_pair[32]; | |
| 247 | __u32 response_data; | |
| 248 | } lcs_ipass_ctlmsg __attribute ((packed)); | |
| 249 | } lcs_qipassist __attribute__ ((packed)); | |
| 250 | #endif /*CONFIG_IP_MULTICAST */ | |
| 251 | } cmd __attribute__ ((packed)); | |
| 252 | } __attribute__ ((packed)); | |
| 253 | ||
| 254 | /** | |
| 255 | * Forward declarations. | |
| 256 | */ | |
| 257 | struct lcs_card; | |
| 258 | struct lcs_channel; | |
| 259 | ||
| 260 | /** | |
| 261 | * Definition of an lcs buffer. | |
| 262 | */ | |
| 263 | struct lcs_buffer { | |
| 264 | enum lcs_buffer_states state; | |
| 265 | void *data; | |
| 266 | int count; | |
| 267 | /* Callback for completion notification. */ | |
| 268 | void (*callback)(struct lcs_channel *, struct lcs_buffer *); | |
| 269 | }; | |
| 270 | ||
| 271 | struct lcs_reply { | |
| 272 | struct list_head list; | |
| 273 | __u16 sequence_no; | |
| 274 | atomic_t refcnt; | |
| 275 | /* Callback for completion notification. */ | |
| 276 | void (*callback)(struct lcs_card *, struct lcs_cmd *); | |
| 277 | wait_queue_head_t wait_q; | |
| 278 | struct lcs_card *card; | |
| 279 | int received; | |
| 280 | int rc; | |
| 281 | }; | |
| 282 | ||
| 283 | /** | |
| 284 | * Definition of an lcs channel | |
| 285 | */ | |
| 286 | struct lcs_channel { | |
| 287 | enum lcs_channel_states state; | |
| 288 | struct ccw_device *ccwdev; | |
| 289 | struct ccw1 ccws[LCS_NUM_BUFFS + 1]; | |
| 290 | wait_queue_head_t wait_q; | |
| 291 | struct tasklet_struct irq_tasklet; | |
| 292 | struct lcs_buffer iob[LCS_NUM_BUFFS]; | |
| 293 | int io_idx; | |
| 294 | int buf_idx; | |
| 295 | }; | |
| 296 | ||
| 297 | ||
| 298 | /** | |
| 299 | * definition of the lcs card | |
| 300 | */ | |
| 301 | struct lcs_card { | |
| 302 | spinlock_t lock; | |
| 303 | spinlock_t ipm_lock; | |
| 304 | enum lcs_dev_states state; | |
| 305 | struct net_device *dev; | |
| 306 | struct net_device_stats stats; | |
| 5a5a852e | 307 | __be16 (*lan_type_trans)(struct sk_buff *skb, |
| 1da177e4 | 308 | struct net_device *dev); |
| 74ef872c | 309 | struct ccwgroup_device *gdev; |
| 1da177e4 LT |
310 | struct lcs_channel read; |
| 311 | struct lcs_channel write; | |
| 312 | struct lcs_buffer *tx_buffer; | |
| 313 | int tx_emitted; | |
| 314 | struct list_head lancmd_waiters; | |
| 315 | int lancmd_timeout; | |
| 316 | ||
| 317 | struct work_struct kernel_thread_starter; | |
| 318 | spinlock_t mask_lock; | |
| 319 | unsigned long thread_start_mask; | |
| 320 | unsigned long thread_running_mask; | |
| 321 | unsigned long thread_allowed_mask; | |
| 322 | wait_queue_head_t wait_q; | |
| 323 | ||
| 324 | #ifdef CONFIG_IP_MULTICAST | |
| 325 | struct list_head ipm_list; | |
| 326 | #endif | |
| 327 | __u8 mac[LCS_MAC_LENGTH]; | |
| 328 | __u16 ip_assists_supported; | |
| 329 | __u16 ip_assists_enabled; | |
| 330 | __s8 lan_type; | |
| 331 | __u32 pkt_seq; | |
| 332 | __u16 sequence_no; | |
| 333 | __s16 portno; | |
| 334 | /* Some info copied from probeinfo */ | |
| 335 | u8 device_forced; | |
| 336 | u8 max_port_no; | |
| 337 | u8 hint_port_no; | |
| 338 | s16 port_protocol_no; | |
| 339 | } __attribute__ ((aligned(8))); | |
| 340 |