1/******************************************************* 2* Define constants * 3* * 4********************************************************/ 5 6/*-----------------------------------------------------* 7* CCW command codes for CLAW protocol * 8*------------------------------------------------------*/ 9 10#define CCW_CLAW_CMD_WRITE 0x01 /* write - not including link */ 11#define CCW_CLAW_CMD_READ 0x02 /* read */ 12#define CCW_CLAW_CMD_NOP 0x03 /* NOP */ 13#define CCW_CLAW_CMD_SENSE 0x04 /* Sense */ 14#define CCW_CLAW_CMD_SIGNAL_SMOD 0x05 /* Signal Status Modifier */ 15#define CCW_CLAW_CMD_TIC 0x08 /* TIC */ 16#define CCW_CLAW_CMD_READHEADER 0x12 /* read header data */ 17#define CCW_CLAW_CMD_READFF 0x22 /* read an FF */ 18#define CCW_CLAW_CMD_SENSEID 0xe4 /* Sense ID */ 19 20 21/*-----------------------------------------------------* 22* CLAW Unique constants * 23*------------------------------------------------------*/ 24 25#define MORE_to_COME_FLAG 0x04 /* OR with write CCW in case of m-t-c */ 26#define CLAW_IDLE 0x00 /* flag to indicate CLAW is idle */ 27#define CLAW_BUSY 0xff /* flag to indicate CLAW is busy */ 28#define CLAW_PENDING 0x00 /* flag to indicate i/o is pending */ 29#define CLAW_COMPLETE 0xff /* flag to indicate i/o completed */ 30 31/*-----------------------------------------------------* 32* CLAW control command code * 33*------------------------------------------------------*/ 34 35#define SYSTEM_VALIDATE_REQUEST 0x01 /* System Validate request */ 36#define SYSTEM_VALIDATE_RESPONSE 0x02 /* System Validate response */ 37#define CONNECTION_REQUEST 0x21 /* Connection request */ 38#define CONNECTION_RESPONSE 0x22 /* Connection response */ 39#define CONNECTION_CONFIRM 0x23 /* Connection confirm */ 40#define DISCONNECT 0x24 /* Disconnect */ 41#define CLAW_ERROR 0x41 /* CLAW error message */ 42#define CLAW_VERSION_ID 2 /* CLAW version ID */ 43 44/*-----------------------------------------------------* 45* CLAW adater sense bytes * 46*------------------------------------------------------*/ 47 48#define CLAW_ADAPTER_SENSE_BYTE 0x41 /* Stop command issued to adapter */ 49 50/*-----------------------------------------------------* 51* CLAW control command return codes * 52*------------------------------------------------------*/ 53 54#define CLAW_RC_NAME_MISMATCH 166 /* names do not match */ 55#define CLAW_RC_WRONG_VERSION 167 /* wrong CLAW version number */ 56#define CLAW_RC_HOST_RCV_TOO_SMALL 180 /* Host maximum receive is */ 57 /* less than Linux on zSeries*/ 58 /* transmit size */ 59 60/*-----------------------------------------------------* 61* CLAW Constants application name * 62*------------------------------------------------------*/ 63 64#define HOST_APPL_NAME "TCPIP " 65#define WS_APPL_NAME_IP_LINK "TCPIP " 66#define WS_APPL_NAME_IP_NAME "IP " 67#define WS_APPL_NAME_API_LINK "API " 68#define WS_APPL_NAME_PACKED "PACKED " 69#define WS_NAME_NOT_DEF "NOT_DEF " 70#define PACKING_ASK 1 71#define PACK_SEND 2 72#define DO_PACKED 3 73 74#define MAX_ENVELOPE_SIZE 65536 75#define CLAW_DEFAULT_MTU_SIZE 4096 76#define DEF_PACK_BUFSIZE 32768 77#define READ 0 78#define WRITE 1 79 80#define TB_TX 0 /* sk buffer handling in process */ 81#define TB_STOP 1 /* network device stop in process */ 82#define TB_RETRY 2 /* retry in process */ 83#define TB_NOBUFFER 3 /* no buffer on free queue */ 84#define CLAW_MAX_LINK_ID 1 85#define CLAW_MAX_DEV 256 /* max claw devices */ 86#define MAX_NAME_LEN 8 /* host name, adapter name length */ 87#define CLAW_FRAME_SIZE 4096 88#define CLAW_ID_SIZE BUS_ID_SIZE+3 89 90/* state machine codes used in claw_irq_handler */ 91 92#define CLAW_STOP 0 93#define CLAW_START_HALT_IO 1 94#define CLAW_START_SENSEID 2 95#define CLAW_START_READ 3 96#define CLAW_START_WRITE 4 97 98/*-----------------------------------------------------* 99* Lock flag * 100*------------------------------------------------------*/ 101#define LOCK_YES 0 102#define LOCK_NO 1 103 104/*-----------------------------------------------------* 105* DBF Debug macros * 106*------------------------------------------------------*/ 107#define CLAW_DBF_TEXT(level, name, text) \ 108 do { \ 109 debug_text_event(claw_dbf_##name, level, text); \ 110 } while (0) 111 112#define CLAW_DBF_HEX(level,name,addr,len) \ 113do { \ 114 debug_event(claw_dbf_##name,level,(void*)(addr),len); \ 115} while (0) 116 117#define CLAW_DBF_TEXT_(level,name,text...) \ 118do { \ 119 sprintf(debug_buffer, text); \ 120 debug_text_event(claw_dbf_##name,level, debug_buffer);\ 121} while (0) 122 123/******************************************************* 124* Define Control Blocks * 125* * 126********************************************************/ 127 128/*------------------------------------------------------*/ 129/* CLAW header */ 130/*------------------------------------------------------*/ 131 132struct clawh { 133 __u16 length; /* length of data read by preceding read CCW */ 134 __u8 opcode; /* equivalent read CCW */ 135 __u8 flag; /* flag of FF to indicate read was completed */ 136}; 137 138/*------------------------------------------------------*/ 139/* CLAW Packing header 4 bytes */ 140/*------------------------------------------------------*/ 141struct clawph { 142 __u16 len; /* Length of Packed Data Area */ 143 __u8 flag; /* Reserved not used */ 144 __u8 link_num; /* Link ID */ 145}; 146 147/*------------------------------------------------------*/ 148/* CLAW Ending struct ccwbk */ 149/*------------------------------------------------------*/ 150struct endccw { 151 __u32 real; /* real address of this block */ 152 __u8 write1; /* write 1 is active */ 153 __u8 read1; /* read 1 is active */ 154 __u16 reserved; /* reserved for future use */ 155 struct ccw1 write1_nop1; 156 struct ccw1 write1_nop2; 157 struct ccw1 write2_nop1; 158 struct ccw1 write2_nop2; 159 struct ccw1 read1_nop1; 160 struct ccw1 read1_nop2; 161 struct ccw1 read2_nop1; 162 struct ccw1 read2_nop2; 163}; 164 165/*------------------------------------------------------*/ 166/* CLAW struct ccwbk */ 167/*------------------------------------------------------*/ 168struct ccwbk { 169 void *next; /* pointer to next ccw block */ 170 __u32 real; /* real address of this ccw */ 171 void *p_buffer; /* virtual address of data */ 172 struct clawh header; /* claw header */ 173 struct ccw1 write; /* write CCW */ 174 struct ccw1 w_read_FF; /* read FF */ 175 struct ccw1 w_TIC_1; /* TIC */ 176 struct ccw1 read; /* read CCW */ 177 struct ccw1 read_h; /* read header */ 178 struct ccw1 signal; /* signal SMOD */ 179 struct ccw1 r_TIC_1; /* TIC1 */ 180 struct ccw1 r_read_FF; /* read FF */ 181 struct ccw1 r_TIC_2; /* TIC2 */ 182}; 183 184/*------------------------------------------------------*/ 185/* CLAW control block */ 186/*------------------------------------------------------*/ 187struct clawctl { 188 __u8 command; /* control command */ 189 __u8 version; /* CLAW protocol version */ 190 __u8 linkid; /* link ID */ 191 __u8 correlator; /* correlator */ 192 __u8 rc; /* return code */ 193 __u8 reserved1; /* reserved */ 194 __u8 reserved2; /* reserved */ 195 __u8 reserved3; /* reserved */ 196 __u8 data[24]; /* command specific fields */ 197}; 198 199/*------------------------------------------------------*/ 200/* Data for SYSTEMVALIDATE command */ 201/*------------------------------------------------------*/ 202struct sysval { 203 char WS_name[8]; /* Workstation System name */ 204 char host_name[8]; /* Host system name */ 205 __u16 read_frame_size; /* read frame size */ 206 __u16 write_frame_size; /* write frame size */ 207 __u8 reserved[4]; /* reserved */ 208}; 209 210/*------------------------------------------------------*/ 211/* Data for Connect command */ 212/*------------------------------------------------------*/ 213struct conncmd { 214 char WS_name[8]; /* Workstation application name */ 215 char host_name[8]; /* Host application name */ 216 __u16 reserved1[2]; /* read frame size */ 217 __u8 reserved2[4]; /* reserved */ 218}; 219 220/*------------------------------------------------------*/ 221/* Data for CLAW error */ 222/*------------------------------------------------------*/ 223struct clawwerror { 224 char reserved1[8]; /* reserved */ 225 char reserved2[8]; /* reserved */ 226 char reserved3[8]; /* reserved */ 227}; 228 229/*------------------------------------------------------*/ 230/* Data buffer for CLAW */ 231/*------------------------------------------------------*/ 232struct clawbuf { 233 char buffer[MAX_ENVELOPE_SIZE]; /* data buffer */ 234}; 235 236/*------------------------------------------------------*/ 237/* Channel control block for read and write channel */ 238/*------------------------------------------------------*/ 239 240struct chbk { 241 unsigned int devno; 242 int irq; 243 char id[CLAW_ID_SIZE]; 244 __u32 IO_active; 245 __u8 claw_state; 246 struct irb *irb; 247 struct ccw_device *cdev; /* pointer to the channel device */ 248 struct net_device *ndev; 249 wait_queue_head_t wait; 250 struct tasklet_struct tasklet; 251 struct timer_list timer; 252 unsigned long flag_a; /* atomic flags */ 253#define CLAW_BH_ACTIVE 0 254 unsigned long flag_b; /* atomic flags */ 255#define CLAW_WRITE_ACTIVE 0 256 __u8 last_dstat; 257 __u8 flag; 258 struct sk_buff_head collect_queue; 259 spinlock_t collect_lock; 260#define CLAW_WRITE 0x02 /* - Set if this is a write channel */ 261#define CLAW_READ 0x01 /* - Set if this is a read channel */ 262#define CLAW_TIMER 0x80 /* - Set if timer made the wake_up */ 263}; 264 265/*--------------------------------------------------------------* 266* CLAW environment block * 267*---------------------------------------------------------------*/ 268 269struct claw_env { 270 unsigned int devno[2]; /* device number */ 271 char host_name[9]; /* Host name */ 272 char adapter_name [9]; /* adapter name */ 273 char api_type[9]; /* TCPIP, API or PACKED */ 274 void *p_priv; /* privptr */ 275 __u16 read_buffers; /* read buffer number */ 276 __u16 write_buffers; /* write buffer number */ 277 __u16 read_size; /* read buffer size */ 278 __u16 write_size; /* write buffer size */ 279 __u16 dev_id; /* device ident */ 280 __u8 packing; /* are we packing? */ 281 volatile __u8 queme_switch; /* gate for imed packing */ 282 volatile unsigned long pk_delay; /* Delay for adaptive packing */ 283 __u8 in_use; /* device active flag */ 284 struct net_device *ndev; /* backward ptr to the net dev*/ 285}; 286 287/*--------------------------------------------------------------* 288* CLAW main control block * 289*---------------------------------------------------------------*/ 290 291struct claw_privbk { 292 void *p_buff_ccw; 293 __u32 p_buff_ccw_num; 294 void *p_buff_read; 295 __u32 p_buff_read_num; 296 __u32 p_buff_pages_perread; 297 void *p_buff_write; 298 __u32 p_buff_write_num; 299 __u32 p_buff_pages_perwrite; 300 long active_link_ID; /* Active logical link ID */ 301 struct ccwbk *p_write_free_chain; /* pointer to free ccw chain */ 302 struct ccwbk *p_write_active_first; /* ptr to the first write ccw */ 303 struct ccwbk *p_write_active_last; /* ptr to the last write ccw */ 304 struct ccwbk *p_read_active_first; /* ptr to the first read ccw */ 305 struct ccwbk *p_read_active_last; /* ptr to the last read ccw */ 306 struct endccw *p_end_ccw; /*ptr to ending ccw */ 307 struct ccwbk *p_claw_signal_blk; /* ptr to signal block */ 308 __u32 write_free_count; /* number of free bufs for write */ 309 struct net_device_stats stats; /* device status */ 310 struct chbk channel[2]; /* Channel control blocks */ 311 __u8 mtc_skipping; 312 int mtc_offset; 313 int mtc_logical_link; 314 void *p_mtc_envelope; 315 struct sk_buff *pk_skb; /* packing buffer */ 316 int pk_cnt; 317 struct clawctl ctl_bk; 318 struct claw_env *p_env; 319 __u8 system_validate_comp; 320 __u8 release_pend; 321 __u8 checksum_received_ip_pkts; 322 __u8 buffs_alloc; 323 struct endccw end_ccw; 324 unsigned long tbusy; 325 326}; 327 328 329/************************************************************/ 330/* define global constants */ 331/************************************************************/ 332 333#define CCWBK_SIZE sizeof(struct ccwbk) 334