Commit | Line | Data |
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1da177e4 LT |
1 | /******************************************************* |
2 | * Define constants * | |
3 | * * | |
4 | ********************************************************/ | |
e018ba1f | 5 | |
1da177e4 LT |
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 | /*-----------------------------------------------------* | |
0779bf2d | 32 | * CLAW control command code * |
1da177e4 LT |
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) \ | |
113 | do { \ | |
114 | debug_event(claw_dbf_##name,level,(void*)(addr),len); \ | |
115 | } while (0) | |
116 | ||
117 | #define CLAW_DBF_TEXT_(level,name,text...) \ | |
118 | do { \ | |
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 | ||
132 | struct 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 | /*------------------------------------------------------*/ | |
141 | struct 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 | /*------------------------------------------------------*/ | |
150 | struct 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 | /*------------------------------------------------------*/ | |
168 | struct 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 | /*------------------------------------------------------*/ | |
187 | struct 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 | /*------------------------------------------------------*/ | |
202 | struct 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 | /*------------------------------------------------------*/ | |
213 | struct 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 | /*------------------------------------------------------*/ | |
223 | struct 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 | /*------------------------------------------------------*/ | |
232 | struct clawbuf { | |
233 | char buffer[MAX_ENVELOPE_SIZE]; /* data buffer */ | |
234 | }; | |
235 | ||
236 | /*------------------------------------------------------*/ | |
237 | /* Channel control block for read and write channel */ | |
238 | /*------------------------------------------------------*/ | |
239 | ||
240 | struct 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 | ||
269 | struct 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 | ||
291 | struct 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 | ||
335 |