2 * linux/include/asm-s390/qdio.h
4 * Linux for S/390 QDIO base support, Hipersocket base support
7 * Copyright 2000,2002 IBM Corporation
8 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
14 /* note, that most of the typedef's are from ingo. */
16 #include <linux/interrupt.h>
18 #include <asm/ccwdev.h>
20 #define QDIO_NAME "qdio "
24 #endif /* __s390x__ */
26 /**** CONSTANTS, that are relied on without using these symbols *****/
27 #define QDIO_MAX_QUEUES_PER_IRQ 32 /* used in width of unsigned int */
28 /************************ END of CONSTANTS **************************/
29 #define QDIO_MAX_BUFFERS_PER_Q 128 /* must be a power of 2 (%x=&(x-1)*/
30 #define QDIO_BUF_ORDER 7 /* 2**this == number of pages used for sbals in 1 q */
31 #define QDIO_MAX_ELEMENTS_PER_BUFFER 16
34 #define QDIO_QETH_QFMT 0
35 #define QDIO_ZFCP_QFMT 1
36 #define QDIO_IQDIO_QFMT 2
37 #define QDIO_IQDIO_QFMT_ASYNCH 3
39 struct qdio_buffer_element{
44 #endif /* QDIO_32_BIT */
46 } __attribute__ ((packed,aligned(16)));
49 volatile struct qdio_buffer_element element[16];
50 } __attribute__ ((packed,aligned(256)));
53 /* params are: ccw_device, status, qdio_error, siga_error,
54 queue_number, first element processed, number of elements processed,
56 typedef void qdio_handler_t(struct ccw_device *,unsigned int,unsigned int,
57 unsigned int,unsigned int,int,int,unsigned long);
60 #define QDIO_STATUS_INBOUND_INT 0x01
61 #define QDIO_STATUS_OUTBOUND_INT 0x02
62 #define QDIO_STATUS_LOOK_FOR_ERROR 0x04
63 #define QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR 0x08
64 #define QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR 0x10
65 #define QDIO_STATUS_ACTIVATE_CHECK_CONDITION 0x20
67 #define QDIO_SIGA_ERROR_ACCESS_EXCEPTION 0x10
68 #define QDIO_SIGA_ERROR_B_BIT_SET 0x20
70 /* for qdio_initialize */
71 #define QDIO_INBOUND_0COPY_SBALS 0x01
72 #define QDIO_OUTBOUND_0COPY_SBALS 0x02
73 #define QDIO_USE_OUTBOUND_PCIS 0x04
75 /* for qdio_cleanup */
76 #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01
77 #define QDIO_FLAG_CLEANUP_USING_HALT 0x02
79 struct qdio_initialize {
80 struct ccw_device *cdev;
81 unsigned char q_format;
82 unsigned char adapter_name[8];
83 unsigned int qib_param_field_format; /*adapter dependent*/
84 /* pointer to 128 bytes or NULL, if no param field */
85 unsigned char *qib_param_field; /* adapter dependent */
86 /* pointer to no_queues*128 words of data or NULL */
87 unsigned long *input_slib_elements;
88 unsigned long *output_slib_elements;
89 unsigned int min_input_threshold;
90 unsigned int max_input_threshold;
91 unsigned int min_output_threshold;
92 unsigned int max_output_threshold;
93 unsigned int no_input_qs;
94 unsigned int no_output_qs;
95 qdio_handler_t *input_handler;
96 qdio_handler_t *output_handler;
97 unsigned long int_parm;
99 void **input_sbal_addr_array; /* addr of n*128 void ptrs */
100 void **output_sbal_addr_array; /* addr of n*128 void ptrs */
103 extern int qdio_initialize(struct qdio_initialize *init_data);
104 extern int qdio_allocate(struct qdio_initialize *init_data);
105 extern int qdio_establish(struct qdio_initialize *init_data);
107 extern int qdio_activate(struct ccw_device *,int flags);
109 #define QDIO_STATE_MUST_USE_OUTB_PCI 0x00000001
110 #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */
111 #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_initialize */
112 #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */
113 #define QDIO_STATE_STOPPED 0x00000010 /* after queues went down */
114 extern unsigned long qdio_get_status(int irq);
117 #define QDIO_FLAG_SYNC_INPUT 0x01
118 #define QDIO_FLAG_SYNC_OUTPUT 0x02
119 #define QDIO_FLAG_UNDER_INTERRUPT 0x04
120 #define QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT 0x08 /* no effect on
121 adapter interrupts */
122 #define QDIO_FLAG_DONT_SIGA 0x10
124 extern int do_QDIO(struct ccw_device*, unsigned int flags,
125 unsigned int queue_number,
126 unsigned int qidx,unsigned int count,
127 struct qdio_buffer *buffers);
129 extern int qdio_synchronize(struct ccw_device*, unsigned int flags,
130 unsigned int queue_number);
132 extern int qdio_cleanup(struct ccw_device*, int how);
133 extern int qdio_shutdown(struct ccw_device*, int how);
134 extern int qdio_free(struct ccw_device*);
136 unsigned char qdio_get_slsb_state(struct ccw_device*, unsigned int flag,
137 unsigned int queue_number,
140 extern void qdio_init_scrubber(void);
144 unsigned long res1; /* reserved */
145 #endif /* QDIO_32_BIT */
146 unsigned long sliba; /* storage-list-information-block
149 unsigned long res2; /* reserved */
150 #endif /* QDIO_32_BIT */
151 unsigned long sla; /* storage-list address */
153 unsigned long res3; /* reserved */
154 #endif /* QDIO_32_BIT */
155 unsigned long slsba; /* storage-list-state-block address */
156 unsigned int res4; /* reserved */
157 unsigned int akey : 4; /* access key for DLIB */
158 unsigned int bkey : 4; /* access key for SL */
159 unsigned int ckey : 4; /* access key for SBALs */
160 unsigned int dkey : 4; /* access key for SLSB */
161 unsigned int res5 : 16; /* reserved */
162 } __attribute__ ((packed));
165 * Queue-Description record (QDR)
168 unsigned int qfmt : 8; /* queue format */
169 unsigned int pfmt : 8; /* impl. dep. parameter format */
170 unsigned int res1 : 8; /* reserved */
171 unsigned int ac : 8; /* adapter characteristics */
172 unsigned int res2 : 8; /* reserved */
173 unsigned int iqdcnt : 8; /* input-queue-descriptor count */
174 unsigned int res3 : 8; /* reserved */
175 unsigned int oqdcnt : 8; /* output-queue-descriptor count */
176 unsigned int res4 : 8; /* reserved */
177 unsigned int iqdsz : 8; /* input-queue-descriptor size */
178 unsigned int res5 : 8; /* reserved */
179 unsigned int oqdsz : 8; /* output-queue-descriptor size */
180 unsigned int res6[9]; /* reserved */
182 unsigned long res7; /* reserved */
183 #endif /* QDIO_32_BIT */
184 unsigned long qiba; /* queue-information-block address */
185 unsigned int res8; /* reserved */
186 unsigned int qkey : 4; /* queue-informatio-block key */
187 unsigned int res9 : 28; /* reserved */
188 /* union _qd {*/ /* why this? */
189 struct qdesfmt0 qdf0[126];
191 } __attribute__ ((packed,aligned(4096)));
195 * queue information block (QIB)
197 #define QIB_AC_INBOUND_PCI_SUPPORTED 0x80
198 #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
199 #define QIB_RFLAGS_ENABLE_QEBSM 0x80
202 unsigned int qfmt : 8; /* queue format */
203 unsigned int pfmt : 8; /* impl. dep. parameter format */
204 unsigned int rflags : 8; /* QEBSM */
205 unsigned int ac : 8; /* adapter characteristics */
206 unsigned int res2; /* reserved */
208 unsigned long res3; /* reserved */
209 #endif /* QDIO_32_BIT */
210 unsigned long isliba; /* absolute address of 1st
213 unsigned long res4; /* reserved */
214 #endif /* QDIO_32_BIT */
215 unsigned long osliba; /* absolute address of 1st
217 unsigned int res5; /* reserved */
218 unsigned int res6; /* reserved */
219 unsigned char ebcnam[8]; /* adapter identifier in EBCDIC */
220 unsigned char res7[88]; /* reserved */
221 unsigned char parm[QDIO_MAX_BUFFERS_PER_Q];
222 /* implementation dependent
224 } __attribute__ ((packed,aligned(256)));
228 * storage-list-information block element (SLIBE)
232 unsigned long res; /* reserved */
233 #endif /* QDIO_32_BIT */
234 unsigned long parms; /* implementation dependent
239 * storage-list-information block (SLIB)
243 unsigned long res1; /* reserved */
244 #endif /* QDIO_32_BIT */
245 unsigned long nsliba; /* next SLIB address (if any) */
247 unsigned long res2; /* reserved */
248 #endif /* QDIO_32_BIT */
249 unsigned long sla; /* SL address */
251 unsigned long res3; /* reserved */
252 #endif /* QDIO_32_BIT */
253 unsigned long slsba; /* SLSB address */
254 unsigned char res4[1000]; /* reserved */
255 struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q]; /* SLIB elements */
256 } __attribute__ ((packed,aligned(2048)));
259 unsigned char res1 : 1; /* reserved */
260 unsigned char last : 1; /* last entry */
261 unsigned char cont : 1; /* contiguous storage */
262 unsigned char res2 : 1; /* reserved */
263 unsigned char frag : 2; /* fragmentation (s.below) */
264 unsigned char res3 : 2; /* reserved */
265 } __attribute__ ((packed));
267 #define SBAL_FLAGS_FIRST_FRAG 0x04000000UL
268 #define SBAL_FLAGS_MIDDLE_FRAG 0x08000000UL
269 #define SBAL_FLAGS_LAST_FRAG 0x0c000000UL
270 #define SBAL_FLAGS_LAST_ENTRY 0x40000000UL
271 #define SBAL_FLAGS_CONTIGUOUS 0x20000000UL
273 #define SBAL_FLAGS0_DATA_CONTINUATION 0x20UL
275 /* Awesome OpenFCP extensions */
276 #define SBAL_FLAGS0_TYPE_STATUS 0x00UL
277 #define SBAL_FLAGS0_TYPE_WRITE 0x08UL
278 #define SBAL_FLAGS0_TYPE_READ 0x10UL
279 #define SBAL_FLAGS0_TYPE_WRITE_READ 0x18UL
280 #define SBAL_FLAGS0_MORE_SBALS 0x04UL
281 #define SBAL_FLAGS0_COMMAND 0x02UL
282 #define SBAL_FLAGS0_LAST_SBAL 0x00UL
283 #define SBAL_FLAGS0_ONLY_SBAL SBAL_FLAGS0_COMMAND
284 #define SBAL_FLAGS0_MIDDLE_SBAL SBAL_FLAGS0_MORE_SBALS
285 #define SBAL_FLAGS0_FIRST_SBAL SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND
286 /* Naught of interest beyond this point */
288 #define SBAL_FLAGS0_PCI 0x40
289 struct sbal_sbalf_0 {
290 unsigned char res1 : 1; /* reserved */
291 unsigned char pci : 1; /* PCI indicator */
292 unsigned char cont : 1; /* data continuation */
293 unsigned char sbtype: 2; /* storage-block type (OpenFCP) */
294 unsigned char res2 : 3; /* reserved */
295 } __attribute__ ((packed));
297 struct sbal_sbalf_1 {
298 unsigned char res1 : 4; /* reserved */
299 unsigned char key : 4; /* storage key */
300 } __attribute__ ((packed));
302 struct sbal_sbalf_14 {
303 unsigned char res1 : 4; /* reserved */
304 unsigned char erridx : 4; /* error index */
305 } __attribute__ ((packed));
307 struct sbal_sbalf_15 {
308 unsigned char reason; /* reserved */
309 } __attribute__ ((packed));
312 struct sbal_sbalf_0 i0;
313 struct sbal_sbalf_1 i1;
314 struct sbal_sbalf_14 i14;
315 struct sbal_sbalf_15 i15;
319 struct sbal_element {
321 struct sbal_flags bits; /* flags */
324 unsigned int res1 : 16; /* reserved */
325 union sbal_sbalf sbalf; /* SBAL flags */
326 unsigned int res2 : 16; /* reserved */
327 unsigned int count : 16; /* data count */
329 unsigned long res3; /* reserved */
330 #endif /* QDIO_32_BIT */
331 unsigned long addr; /* absolute data address */
332 } __attribute__ ((packed,aligned(16)));
335 * strorage-block access-list (SBAL)
338 struct sbal_element element[QDIO_MAX_ELEMENTS_PER_BUFFER];
339 } __attribute__ ((packed,aligned(256)));
346 unsigned long res; /* reserved */
347 #endif /* QDIO_32_BIT */
348 unsigned long sbal; /* absolute SBAL address */
349 } __attribute__ ((packed));
352 struct sl_element element[QDIO_MAX_BUFFERS_PER_Q];
353 } __attribute__ ((packed,aligned(1024)));
356 * storage-list-state block (SLSB)
359 unsigned char owner : 2; /* SBAL owner */
360 unsigned char type : 1; /* buffer type */
361 unsigned char state : 5; /* processing state */
362 } __attribute__ ((packed));
367 unsigned char val[QDIO_MAX_BUFFERS_PER_Q];
368 struct slsb_flags flags[QDIO_MAX_BUFFERS_PER_Q];
370 } __attribute__ ((packed,aligned(256)));
375 #define SLSB_OWNER_PROG 1
376 #define SLSB_OWNER_CU 2
378 #define SLSB_TYPE_INPUT 0
379 #define SLSB_TYPE_OUTPUT 1
381 #define SLSB_STATE_NOT_INIT 0
382 #define SLSB_STATE_EMPTY 1
383 #define SLSB_STATE_PRIMED 2
384 #define SLSB_STATE_HALTED 0xe
385 #define SLSB_STATE_ERROR 0xf
387 #define SLSB_P_INPUT_NOT_INIT 0x80
388 #define SLSB_P_INPUT_PROCESSING 0x81
389 #define SLSB_CU_INPUT_EMPTY 0x41
390 #define SLSB_P_INPUT_PRIMED 0x82
391 #define SLSB_P_INPUT_HALTED 0x8E
392 #define SLSB_P_INPUT_ERROR 0x8F
394 #define SLSB_P_OUTPUT_NOT_INIT 0xA0
395 #define SLSB_P_OUTPUT_EMPTY 0xA1
396 #define SLSB_CU_OUTPUT_PRIMED 0x62
397 #define SLSB_P_OUTPUT_HALTED 0xAE
398 #define SLSB_P_OUTPUT_ERROR 0xAF
400 #define SLSB_ERROR_DURING_LOOKUP 0xFF
402 #endif /* __QDIO_H__ */