Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*lcs.h*/ |
| 2 | |
| 3 | #include <linux/interrupt.h> |
| 4 | #include <linux/netdevice.h> |
| 5 | #include <linux/skbuff.h> |
| 6 | #include <linux/workqueue.h> |
| 7 | #include <asm/ccwdev.h> |
| 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #define LCS_DBF_TEXT(level, name, text) \ |
| 10 | do { \ |
| 11 | debug_text_event(lcs_dbf_##name, level, text); \ |
| 12 | } while (0) |
| 13 | |
| 14 | #define LCS_DBF_HEX(level,name,addr,len) \ |
| 15 | do { \ |
| 16 | debug_event(lcs_dbf_##name,level,(void*)(addr),len); \ |
| 17 | } while (0) |
| 18 | |
Peter Tiedemann | f33780d | 2008-02-08 13:09:05 +0100 | [diff] [blame] | 19 | /* Allow to sort out low debug levels early to avoid wasted sprints */ |
| 20 | static inline int lcs_dbf_passes(debug_info_t *dbf_grp, int level) |
| 21 | { |
| 22 | return (level <= dbf_grp->level); |
| 23 | } |
| 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #define LCS_DBF_TEXT_(level,name,text...) \ |
Peter Tiedemann | f33780d | 2008-02-08 13:09:05 +0100 | [diff] [blame] | 26 | do { \ |
| 27 | if (lcs_dbf_passes(lcs_dbf_##name, level)) { \ |
| 28 | sprintf(debug_buffer, text); \ |
| 29 | debug_text_event(lcs_dbf_##name, level, debug_buffer); \ |
| 30 | } \ |
| 31 | } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
| 33 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | * sysfs related stuff |
| 35 | */ |
| 36 | #define CARD_FROM_DEV(cdev) \ |
| 37 | (struct lcs_card *) \ |
| 38 | ((struct ccwgroup_device *)cdev->dev.driver_data)->dev.driver_data; |
| 39 | /** |
| 40 | * CCW commands used in this driver |
| 41 | */ |
| 42 | #define LCS_CCW_WRITE 0x01 |
| 43 | #define LCS_CCW_READ 0x02 |
| 44 | #define LCS_CCW_TRANSFER 0x08 |
| 45 | |
| 46 | /** |
| 47 | * LCS device status primitives |
| 48 | */ |
| 49 | #define LCS_CMD_STARTLAN 0x01 |
| 50 | #define LCS_CMD_STOPLAN 0x02 |
| 51 | #define LCS_CMD_LANSTAT 0x04 |
| 52 | #define LCS_CMD_STARTUP 0x07 |
| 53 | #define LCS_CMD_SHUTDOWN 0x08 |
| 54 | #define LCS_CMD_QIPASSIST 0xb2 |
| 55 | #define LCS_CMD_SETIPM 0xb4 |
| 56 | #define LCS_CMD_DELIPM 0xb5 |
| 57 | |
| 58 | #define LCS_INITIATOR_TCPIP 0x00 |
| 59 | #define LCS_INITIATOR_LGW 0x01 |
| 60 | #define LCS_STD_CMD_SIZE 16 |
| 61 | #define LCS_MULTICAST_CMD_SIZE 404 |
| 62 | |
| 63 | /** |
| 64 | * LCS IPASSIST MASKS,only used when multicast is switched on |
| 65 | */ |
| 66 | /* Not supported by LCS */ |
| 67 | #define LCS_IPASS_ARP_PROCESSING 0x0001 |
| 68 | #define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002 |
| 69 | #define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004 |
| 70 | #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 |
| 71 | #define LCS_IPASS_IP_FILTERING 0x0010 |
| 72 | /* Supported by lcs 3172 */ |
| 73 | #define LCS_IPASS_IPV6_SUPPORT 0x0020 |
| 74 | #define LCS_IPASS_MULTICAST_SUPPORT 0x0040 |
| 75 | |
| 76 | /** |
| 77 | * LCS sense byte definitions |
| 78 | */ |
Klaus Wacker | 74ef872 | 2006-05-24 09:51:21 +0200 | [diff] [blame] | 79 | #define LCS_SENSE_BYTE_0 0 |
| 80 | #define LCS_SENSE_BYTE_1 1 |
| 81 | #define LCS_SENSE_BYTE_2 2 |
| 82 | #define LCS_SENSE_BYTE_3 3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | #define LCS_SENSE_INTERFACE_DISCONNECT 0x01 |
| 84 | #define LCS_SENSE_EQUIPMENT_CHECK 0x10 |
| 85 | #define LCS_SENSE_BUS_OUT_CHECK 0x20 |
| 86 | #define LCS_SENSE_INTERVENTION_REQUIRED 0x40 |
| 87 | #define LCS_SENSE_CMD_REJECT 0x80 |
Klaus Wacker | 74ef872 | 2006-05-24 09:51:21 +0200 | [diff] [blame] | 88 | #define LCS_SENSE_RESETTING_EVENT 0x80 |
| 89 | #define LCS_SENSE_DEVICE_ONLINE 0x20 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
| 91 | /** |
| 92 | * LCS packet type definitions |
| 93 | */ |
| 94 | #define LCS_FRAME_TYPE_CONTROL 0 |
| 95 | #define LCS_FRAME_TYPE_ENET 1 |
| 96 | #define LCS_FRAME_TYPE_TR 2 |
| 97 | #define LCS_FRAME_TYPE_FDDI 7 |
| 98 | #define LCS_FRAME_TYPE_AUTO -1 |
| 99 | |
| 100 | /** |
| 101 | * some more definitions,we will sort them later |
| 102 | */ |
| 103 | #define LCS_ILLEGAL_OFFSET 0xffff |
| 104 | #define LCS_IOBUFFERSIZE 0x5000 |
Frank Pavlic | 0d613a2 | 2006-02-07 17:04:36 +0100 | [diff] [blame] | 105 | #define LCS_NUM_BUFFS 32 /* needs to be power of 2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | #define LCS_MAC_LENGTH 6 |
| 107 | #define LCS_INVALID_PORT_NO -1 |
| 108 | #define LCS_LANCMD_TIMEOUT_DEFAULT 5 |
| 109 | |
| 110 | /** |
| 111 | * Multicast state |
| 112 | */ |
| 113 | #define LCS_IPM_STATE_SET_REQUIRED 0 |
| 114 | #define LCS_IPM_STATE_DEL_REQUIRED 1 |
| 115 | #define LCS_IPM_STATE_ON_CARD 2 |
| 116 | |
| 117 | /** |
| 118 | * LCS IP Assist declarations |
| 119 | * seems to be only used for multicast |
| 120 | */ |
| 121 | #define LCS_IPASS_ARP_PROCESSING 0x0001 |
| 122 | #define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002 |
| 123 | #define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004 |
| 124 | #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 |
| 125 | #define LCS_IPASS_IP_FILTERING 0x0010 |
| 126 | #define LCS_IPASS_IPV6_SUPPORT 0x0020 |
| 127 | #define LCS_IPASS_MULTICAST_SUPPORT 0x0040 |
| 128 | |
| 129 | /** |
| 130 | * LCS Buffer states |
| 131 | */ |
| 132 | enum lcs_buffer_states { |
Ursula Braun | 9163bb2 | 2006-12-04 15:40:59 +0100 | [diff] [blame] | 133 | LCS_BUF_STATE_EMPTY, /* buffer is empty */ |
| 134 | LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */ |
| 135 | LCS_BUF_STATE_READY, /* buffer is ready for read/write */ |
| 136 | LCS_BUF_STATE_PROCESSED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | }; |
| 138 | |
| 139 | /** |
| 140 | * LCS Channel State Machine declarations |
| 141 | */ |
| 142 | enum lcs_channel_states { |
Ursula Braun | 9163bb2 | 2006-12-04 15:40:59 +0100 | [diff] [blame] | 143 | LCS_CH_STATE_INIT, |
| 144 | LCS_CH_STATE_HALTED, |
| 145 | LCS_CH_STATE_STOPPED, |
| 146 | LCS_CH_STATE_RUNNING, |
| 147 | LCS_CH_STATE_SUSPENDED, |
| 148 | LCS_CH_STATE_CLEARED, |
Klaus D. Wacker | 59579da | 2007-10-05 16:45:47 +0200 | [diff] [blame] | 149 | LCS_CH_STATE_ERROR, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | }; |
| 151 | |
| 152 | /** |
| 153 | * LCS device state machine |
| 154 | */ |
| 155 | enum lcs_dev_states { |
| 156 | DEV_STATE_DOWN, |
| 157 | DEV_STATE_UP, |
| 158 | DEV_STATE_RECOVER, |
| 159 | }; |
| 160 | |
| 161 | enum lcs_threads { |
| 162 | LCS_SET_MC_THREAD = 1, |
Klaus Wacker | 74ef872 | 2006-05-24 09:51:21 +0200 | [diff] [blame] | 163 | LCS_RECOVERY_THREAD = 2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | }; |
Klaus Wacker | 74ef872 | 2006-05-24 09:51:21 +0200 | [diff] [blame] | 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | /** |
| 167 | * LCS struct declarations |
| 168 | */ |
| 169 | struct lcs_header { |
| 170 | __u16 offset; |
| 171 | __u8 type; |
| 172 | __u8 slot; |
| 173 | } __attribute__ ((packed)); |
| 174 | |
| 175 | struct lcs_ip_mac_pair { |
Al Viro | 5a5a852 | 2006-11-14 21:43:44 -0800 | [diff] [blame] | 176 | __be32 ip_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | __u8 mac_addr[LCS_MAC_LENGTH]; |
| 178 | __u8 reserved[2]; |
| 179 | } __attribute__ ((packed)); |
| 180 | |
| 181 | struct lcs_ipm_list { |
| 182 | struct list_head list; |
| 183 | struct lcs_ip_mac_pair ipm; |
| 184 | __u8 ipm_state; |
| 185 | }; |
| 186 | |
| 187 | struct lcs_cmd { |
| 188 | __u16 offset; |
| 189 | __u8 type; |
| 190 | __u8 slot; |
| 191 | __u8 cmd_code; |
| 192 | __u8 initiator; |
| 193 | __u16 sequence_no; |
| 194 | __u16 return_code; |
| 195 | union { |
| 196 | struct { |
| 197 | __u8 lan_type; |
| 198 | __u8 portno; |
| 199 | __u16 parameter_count; |
| 200 | __u8 operator_flags[3]; |
| 201 | __u8 reserved[3]; |
| 202 | } lcs_std_cmd; |
| 203 | struct { |
| 204 | __u16 unused1; |
| 205 | __u16 buff_size; |
| 206 | __u8 unused2[6]; |
| 207 | } lcs_startup; |
| 208 | struct { |
| 209 | __u8 lan_type; |
| 210 | __u8 portno; |
| 211 | __u8 unused[10]; |
| 212 | __u8 mac_addr[LCS_MAC_LENGTH]; |
| 213 | __u32 num_packets_deblocked; |
| 214 | __u32 num_packets_blocked; |
| 215 | __u32 num_packets_tx_on_lan; |
| 216 | __u32 num_tx_errors_detected; |
| 217 | __u32 num_tx_packets_disgarded; |
| 218 | __u32 num_packets_rx_from_lan; |
| 219 | __u32 num_rx_errors_detected; |
| 220 | __u32 num_rx_discarded_nobuffs_avail; |
| 221 | __u32 num_rx_packets_too_large; |
| 222 | } lcs_lanstat_cmd; |
| 223 | #ifdef CONFIG_IP_MULTICAST |
| 224 | struct { |
| 225 | __u8 lan_type; |
| 226 | __u8 portno; |
| 227 | __u16 num_ip_pairs; |
| 228 | __u16 ip_assists_supported; |
| 229 | __u16 ip_assists_enabled; |
| 230 | __u16 version; |
| 231 | struct { |
| 232 | struct lcs_ip_mac_pair |
| 233 | ip_mac_pair[32]; |
| 234 | __u32 response_data; |
| 235 | } lcs_ipass_ctlmsg __attribute ((packed)); |
| 236 | } lcs_qipassist __attribute__ ((packed)); |
| 237 | #endif /*CONFIG_IP_MULTICAST */ |
| 238 | } cmd __attribute__ ((packed)); |
| 239 | } __attribute__ ((packed)); |
| 240 | |
| 241 | /** |
| 242 | * Forward declarations. |
| 243 | */ |
| 244 | struct lcs_card; |
| 245 | struct lcs_channel; |
| 246 | |
| 247 | /** |
| 248 | * Definition of an lcs buffer. |
| 249 | */ |
| 250 | struct lcs_buffer { |
| 251 | enum lcs_buffer_states state; |
| 252 | void *data; |
| 253 | int count; |
| 254 | /* Callback for completion notification. */ |
| 255 | void (*callback)(struct lcs_channel *, struct lcs_buffer *); |
| 256 | }; |
| 257 | |
| 258 | struct lcs_reply { |
| 259 | struct list_head list; |
| 260 | __u16 sequence_no; |
| 261 | atomic_t refcnt; |
| 262 | /* Callback for completion notification. */ |
| 263 | void (*callback)(struct lcs_card *, struct lcs_cmd *); |
| 264 | wait_queue_head_t wait_q; |
| 265 | struct lcs_card *card; |
| 266 | int received; |
| 267 | int rc; |
| 268 | }; |
| 269 | |
| 270 | /** |
| 271 | * Definition of an lcs channel |
| 272 | */ |
| 273 | struct lcs_channel { |
| 274 | enum lcs_channel_states state; |
| 275 | struct ccw_device *ccwdev; |
| 276 | struct ccw1 ccws[LCS_NUM_BUFFS + 1]; |
| 277 | wait_queue_head_t wait_q; |
| 278 | struct tasklet_struct irq_tasklet; |
| 279 | struct lcs_buffer iob[LCS_NUM_BUFFS]; |
| 280 | int io_idx; |
| 281 | int buf_idx; |
| 282 | }; |
| 283 | |
| 284 | |
| 285 | /** |
| 286 | * definition of the lcs card |
| 287 | */ |
| 288 | struct lcs_card { |
| 289 | spinlock_t lock; |
| 290 | spinlock_t ipm_lock; |
| 291 | enum lcs_dev_states state; |
| 292 | struct net_device *dev; |
| 293 | struct net_device_stats stats; |
Al Viro | 5a5a852 | 2006-11-14 21:43:44 -0800 | [diff] [blame] | 294 | __be16 (*lan_type_trans)(struct sk_buff *skb, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | struct net_device *dev); |
Klaus Wacker | 74ef872 | 2006-05-24 09:51:21 +0200 | [diff] [blame] | 296 | struct ccwgroup_device *gdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | struct lcs_channel read; |
| 298 | struct lcs_channel write; |
| 299 | struct lcs_buffer *tx_buffer; |
| 300 | int tx_emitted; |
| 301 | struct list_head lancmd_waiters; |
| 302 | int lancmd_timeout; |
| 303 | |
| 304 | struct work_struct kernel_thread_starter; |
| 305 | spinlock_t mask_lock; |
| 306 | unsigned long thread_start_mask; |
| 307 | unsigned long thread_running_mask; |
| 308 | unsigned long thread_allowed_mask; |
| 309 | wait_queue_head_t wait_q; |
| 310 | |
| 311 | #ifdef CONFIG_IP_MULTICAST |
| 312 | struct list_head ipm_list; |
| 313 | #endif |
| 314 | __u8 mac[LCS_MAC_LENGTH]; |
| 315 | __u16 ip_assists_supported; |
| 316 | __u16 ip_assists_enabled; |
| 317 | __s8 lan_type; |
| 318 | __u32 pkt_seq; |
| 319 | __u16 sequence_no; |
| 320 | __s16 portno; |
| 321 | /* Some info copied from probeinfo */ |
| 322 | u8 device_forced; |
| 323 | u8 max_port_no; |
| 324 | u8 hint_port_no; |
| 325 | s16 port_protocol_no; |
| 326 | } __attribute__ ((aligned(8))); |
| 327 | |