diff options
Diffstat (limited to 'include/asm-s390/qdio.h')
-rw-r--r-- | include/asm-s390/qdio.h | 646 |
1 files changed, 312 insertions, 334 deletions
diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h index 11240342a0f4..6813772171f2 100644 --- a/include/asm-s390/qdio.h +++ b/include/asm-s390/qdio.h | |||
@@ -1,404 +1,382 @@ | |||
1 | /* | 1 | /* |
2 | * linux/include/asm-s390/qdio.h | 2 | * linux/include/asm-s390/qdio.h |
3 | * | 3 | * |
4 | * Linux for S/390 QDIO base support, Hipersocket base support | 4 | * Copyright 2000,2008 IBM Corp. |
5 | * version 2 | ||
6 | * | ||
7 | * Copyright 2000,2002 IBM Corporation | ||
8 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com> | 5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com> |
6 | * Jan Glauber <jang@linux.vnet.ibm.com> | ||
9 | * | 7 | * |
10 | */ | 8 | */ |
11 | #ifndef __QDIO_H__ | 9 | #ifndef __QDIO_H__ |
12 | #define __QDIO_H__ | 10 | #define __QDIO_H__ |
13 | 11 | ||
14 | /* note, that most of the typedef's are from ingo. */ | ||
15 | |||
16 | #include <linux/interrupt.h> | 12 | #include <linux/interrupt.h> |
17 | #include <asm/cio.h> | 13 | #include <asm/cio.h> |
18 | #include <asm/ccwdev.h> | 14 | #include <asm/ccwdev.h> |
19 | 15 | ||
20 | #define QDIO_NAME "qdio " | 16 | #define QDIO_MAX_QUEUES_PER_IRQ 32 |
21 | 17 | #define QDIO_MAX_BUFFERS_PER_Q 128 | |
22 | #ifndef __s390x__ | 18 | #define QDIO_MAX_BUFFERS_MASK (QDIO_MAX_BUFFERS_PER_Q - 1) |
23 | #define QDIO_32_BIT | 19 | #define QDIO_MAX_ELEMENTS_PER_BUFFER 16 |
24 | #endif /* __s390x__ */ | 20 | #define QDIO_SBAL_SIZE 256 |
25 | 21 | ||
26 | /**** CONSTANTS, that are relied on without using these symbols *****/ | 22 | #define QDIO_QETH_QFMT 0 |
27 | #define QDIO_MAX_QUEUES_PER_IRQ 32 /* used in width of unsigned int */ | 23 | #define QDIO_ZFCP_QFMT 1 |
28 | /************************ END of CONSTANTS **************************/ | 24 | #define QDIO_IQDIO_QFMT 2 |
29 | #define QDIO_MAX_BUFFERS_PER_Q 128 /* must be a power of 2 (%x=&(x-1)*/ | 25 | |
30 | #define QDIO_BUF_ORDER 7 /* 2**this == number of pages used for sbals in 1 q */ | 26 | /** |
31 | #define QDIO_MAX_ELEMENTS_PER_BUFFER 16 | 27 | * struct qdesfmt0 - queue descriptor, format 0 |
32 | #define SBAL_SIZE 256 | 28 | * @sliba: storage list information block address |
33 | 29 | * @sla: storage list address | |
34 | #define QDIO_QETH_QFMT 0 | 30 | * @slsba: storage list state block address |
35 | #define QDIO_ZFCP_QFMT 1 | 31 | * @akey: access key for DLIB |
36 | #define QDIO_IQDIO_QFMT 2 | 32 | * @bkey: access key for SL |
37 | #define QDIO_IQDIO_QFMT_ASYNCH 3 | 33 | * @ckey: access key for SBALs |
38 | 34 | * @dkey: access key for SLSB | |
39 | struct qdio_buffer_element{ | 35 | */ |
40 | unsigned int flags; | ||
41 | unsigned int length; | ||
42 | #ifdef QDIO_32_BIT | ||
43 | void *reserved; | ||
44 | #endif /* QDIO_32_BIT */ | ||
45 | void *addr; | ||
46 | } __attribute__ ((packed,aligned(16))); | ||
47 | |||
48 | struct qdio_buffer{ | ||
49 | volatile struct qdio_buffer_element element[16]; | ||
50 | } __attribute__ ((packed,aligned(256))); | ||
51 | |||
52 | |||
53 | /* params are: ccw_device, status, qdio_error, siga_error, | ||
54 | queue_number, first element processed, number of elements processed, | ||
55 | int_parm */ | ||
56 | typedef void qdio_handler_t(struct ccw_device *,unsigned int,unsigned int, | ||
57 | unsigned int,unsigned int,int,int,unsigned long); | ||
58 | |||
59 | |||
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 | ||
66 | |||
67 | #define QDIO_SIGA_ERROR_ACCESS_EXCEPTION 0x10 | ||
68 | #define QDIO_SIGA_ERROR_B_BIT_SET 0x20 | ||
69 | |||
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 | ||
74 | |||
75 | /* for qdio_cleanup */ | ||
76 | #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01 | ||
77 | #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 | ||
78 | |||
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; | ||
98 | unsigned long flags; | ||
99 | void **input_sbal_addr_array; /* addr of n*128 void ptrs */ | ||
100 | void **output_sbal_addr_array; /* addr of n*128 void ptrs */ | ||
101 | }; | ||
102 | |||
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); | ||
106 | |||
107 | extern int qdio_activate(struct ccw_device *,int flags); | ||
108 | |||
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); | ||
115 | |||
116 | |||
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 | ||
123 | #define QDIO_FLAG_PCI_OUT 0x20 | ||
124 | |||
125 | extern int do_QDIO(struct ccw_device*, unsigned int flags, | ||
126 | unsigned int queue_number, | ||
127 | unsigned int qidx,unsigned int count, | ||
128 | struct qdio_buffer *buffers); | ||
129 | |||
130 | extern int qdio_get_ssqd_pct(struct ccw_device*); | ||
131 | extern int qdio_synchronize(struct ccw_device*, unsigned int flags, | ||
132 | unsigned int queue_number); | ||
133 | |||
134 | extern int qdio_cleanup(struct ccw_device*, int how); | ||
135 | extern int qdio_shutdown(struct ccw_device*, int how); | ||
136 | extern int qdio_free(struct ccw_device*); | ||
137 | |||
138 | unsigned char qdio_get_slsb_state(struct ccw_device*, unsigned int flag, | ||
139 | unsigned int queue_number, | ||
140 | unsigned int qidx); | ||
141 | |||
142 | extern void qdio_init_scrubber(void); | ||
143 | |||
144 | struct qdesfmt0 { | 36 | struct qdesfmt0 { |
145 | #ifdef QDIO_32_BIT | 37 | u64 sliba; |
146 | unsigned long res1; /* reserved */ | 38 | u64 sla; |
147 | #endif /* QDIO_32_BIT */ | 39 | u64 slsba; |
148 | unsigned long sliba; /* storage-list-information-block | 40 | u32 : 32; |
149 | address */ | 41 | u32 akey : 4; |
150 | #ifdef QDIO_32_BIT | 42 | u32 bkey : 4; |
151 | unsigned long res2; /* reserved */ | 43 | u32 ckey : 4; |
152 | #endif /* QDIO_32_BIT */ | 44 | u32 dkey : 4; |
153 | unsigned long sla; /* storage-list address */ | 45 | u32 : 16; |
154 | #ifdef QDIO_32_BIT | ||
155 | unsigned long res3; /* reserved */ | ||
156 | #endif /* QDIO_32_BIT */ | ||
157 | unsigned long slsba; /* storage-list-state-block address */ | ||
158 | unsigned int res4; /* reserved */ | ||
159 | unsigned int akey : 4; /* access key for DLIB */ | ||
160 | unsigned int bkey : 4; /* access key for SL */ | ||
161 | unsigned int ckey : 4; /* access key for SBALs */ | ||
162 | unsigned int dkey : 4; /* access key for SLSB */ | ||
163 | unsigned int res5 : 16; /* reserved */ | ||
164 | } __attribute__ ((packed)); | 46 | } __attribute__ ((packed)); |
165 | 47 | ||
166 | /* | 48 | /** |
167 | * Queue-Description record (QDR) | 49 | * struct qdr - queue description record (QDR) |
50 | * @qfmt: queue format | ||
51 | * @pfmt: implementation dependent parameter format | ||
52 | * @ac: adapter characteristics | ||
53 | * @iqdcnt: input queue descriptor count | ||
54 | * @oqdcnt: output queue descriptor count | ||
55 | * @iqdsz: inpout queue descriptor size | ||
56 | * @oqdsz: output queue descriptor size | ||
57 | * @qiba: queue information block address | ||
58 | * @qkey: queue information block key | ||
59 | * @qdf0: queue descriptions | ||
168 | */ | 60 | */ |
169 | struct qdr { | 61 | struct qdr { |
170 | unsigned int qfmt : 8; /* queue format */ | 62 | u32 qfmt : 8; |
171 | unsigned int pfmt : 8; /* impl. dep. parameter format */ | 63 | u32 pfmt : 8; |
172 | unsigned int res1 : 8; /* reserved */ | 64 | u32 : 8; |
173 | unsigned int ac : 8; /* adapter characteristics */ | 65 | u32 ac : 8; |
174 | unsigned int res2 : 8; /* reserved */ | 66 | u32 : 8; |
175 | unsigned int iqdcnt : 8; /* input-queue-descriptor count */ | 67 | u32 iqdcnt : 8; |
176 | unsigned int res3 : 8; /* reserved */ | 68 | u32 : 8; |
177 | unsigned int oqdcnt : 8; /* output-queue-descriptor count */ | 69 | u32 oqdcnt : 8; |
178 | unsigned int res4 : 8; /* reserved */ | 70 | u32 : 8; |
179 | unsigned int iqdsz : 8; /* input-queue-descriptor size */ | 71 | u32 iqdsz : 8; |
180 | unsigned int res5 : 8; /* reserved */ | 72 | u32 : 8; |
181 | unsigned int oqdsz : 8; /* output-queue-descriptor size */ | 73 | u32 oqdsz : 8; |
182 | unsigned int res6[9]; /* reserved */ | 74 | /* private: */ |
183 | #ifdef QDIO_32_BIT | 75 | u32 res[9]; |
184 | unsigned long res7; /* reserved */ | 76 | /* public: */ |
185 | #endif /* QDIO_32_BIT */ | 77 | u64 qiba; |
186 | unsigned long qiba; /* queue-information-block address */ | 78 | u32 : 32; |
187 | unsigned int res8; /* reserved */ | 79 | u32 qkey : 4; |
188 | unsigned int qkey : 4; /* queue-information-block key */ | 80 | u32 : 28; |
189 | unsigned int res9 : 28; /* reserved */ | 81 | struct qdesfmt0 qdf0[126]; |
190 | /* union _qd {*/ /* why this? */ | 82 | } __attribute__ ((packed, aligned(4096))); |
191 | struct qdesfmt0 qdf0[126]; | 83 | |
192 | /* } qd;*/ | 84 | #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 |
193 | } __attribute__ ((packed,aligned(4096))); | ||
194 | |||
195 | |||
196 | /* | ||
197 | * queue information block (QIB) | ||
198 | */ | ||
199 | #define QIB_AC_INBOUND_PCI_SUPPORTED 0x80 | ||
200 | #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 | ||
201 | #define QIB_RFLAGS_ENABLE_QEBSM 0x80 | 85 | #define QIB_RFLAGS_ENABLE_QEBSM 0x80 |
202 | 86 | ||
87 | /** | ||
88 | * struct qib - queue information block (QIB) | ||
89 | * @qfmt: queue format | ||
90 | * @pfmt: implementation dependent parameter format | ||
91 | * @rflags: QEBSM | ||
92 | * @ac: adapter characteristics | ||
93 | * @isliba: absolute address of first input SLIB | ||
94 | * @osliba: absolute address of first output SLIB | ||
95 | * @ebcnam: adapter identifier in EBCDIC | ||
96 | * @parm: implementation dependent parameters | ||
97 | */ | ||
203 | struct qib { | 98 | struct qib { |
204 | unsigned int qfmt : 8; /* queue format */ | 99 | u32 qfmt : 8; |
205 | unsigned int pfmt : 8; /* impl. dep. parameter format */ | 100 | u32 pfmt : 8; |
206 | unsigned int rflags : 8; /* QEBSM */ | 101 | u32 rflags : 8; |
207 | unsigned int ac : 8; /* adapter characteristics */ | 102 | u32 ac : 8; |
208 | unsigned int res2; /* reserved */ | 103 | u32 : 32; |
209 | #ifdef QDIO_32_BIT | 104 | u64 isliba; |
210 | unsigned long res3; /* reserved */ | 105 | u64 osliba; |
211 | #endif /* QDIO_32_BIT */ | 106 | u32 : 32; |
212 | unsigned long isliba; /* absolute address of 1st | 107 | u32 : 32; |
213 | input SLIB */ | 108 | u8 ebcnam[8]; |
214 | #ifdef QDIO_32_BIT | 109 | /* private: */ |
215 | unsigned long res4; /* reserved */ | 110 | u8 res[88]; |
216 | #endif /* QDIO_32_BIT */ | 111 | /* public: */ |
217 | unsigned long osliba; /* absolute address of 1st | 112 | u8 parm[QDIO_MAX_BUFFERS_PER_Q]; |
218 | output SLIB */ | 113 | } __attribute__ ((packed, aligned(256))); |
219 | unsigned int res5; /* reserved */ | 114 | |
220 | unsigned int res6; /* reserved */ | 115 | /** |
221 | unsigned char ebcnam[8]; /* adapter identifier in EBCDIC */ | 116 | * struct slibe - storage list information block element (SLIBE) |
222 | unsigned char res7[88]; /* reserved */ | 117 | * @parms: implementation dependent parameters |
223 | unsigned char parm[QDIO_MAX_BUFFERS_PER_Q]; | ||
224 | /* implementation dependent | ||
225 | parameters */ | ||
226 | } __attribute__ ((packed,aligned(256))); | ||
227 | |||
228 | |||
229 | /* | ||
230 | * storage-list-information block element (SLIBE) | ||
231 | */ | 118 | */ |
232 | struct slibe { | 119 | struct slibe { |
233 | #ifdef QDIO_32_BIT | 120 | u64 parms; |
234 | unsigned long res; /* reserved */ | ||
235 | #endif /* QDIO_32_BIT */ | ||
236 | unsigned long parms; /* implementation dependent | ||
237 | parameters */ | ||
238 | }; | 121 | }; |
239 | 122 | ||
240 | /* | 123 | /** |
241 | * storage-list-information block (SLIB) | 124 | * struct slib - storage list information block (SLIB) |
125 | * @nsliba: next SLIB address (if any) | ||
126 | * @sla: SL address | ||
127 | * @slsba: SLSB address | ||
128 | * @slibe: SLIB elements | ||
242 | */ | 129 | */ |
243 | struct slib { | 130 | struct slib { |
244 | #ifdef QDIO_32_BIT | 131 | u64 nsliba; |
245 | unsigned long res1; /* reserved */ | 132 | u64 sla; |
246 | #endif /* QDIO_32_BIT */ | 133 | u64 slsba; |
247 | unsigned long nsliba; /* next SLIB address (if any) */ | 134 | /* private: */ |
248 | #ifdef QDIO_32_BIT | 135 | u8 res[1000]; |
249 | unsigned long res2; /* reserved */ | 136 | /* public: */ |
250 | #endif /* QDIO_32_BIT */ | 137 | struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q]; |
251 | unsigned long sla; /* SL address */ | 138 | } __attribute__ ((packed, aligned(2048))); |
252 | #ifdef QDIO_32_BIT | 139 | |
253 | unsigned long res3; /* reserved */ | 140 | /** |
254 | #endif /* QDIO_32_BIT */ | 141 | * struct sbal_flags - storage block address list flags |
255 | unsigned long slsba; /* SLSB address */ | 142 | * @last: last entry |
256 | unsigned char res4[1000]; /* reserved */ | 143 | * @cont: contiguous storage |
257 | struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q]; /* SLIB elements */ | 144 | * @frag: fragmentation |
258 | } __attribute__ ((packed,aligned(2048))); | 145 | */ |
259 | |||
260 | struct sbal_flags { | 146 | struct sbal_flags { |
261 | unsigned char res1 : 1; /* reserved */ | 147 | u8 : 1; |
262 | unsigned char last : 1; /* last entry */ | 148 | u8 last : 1; |
263 | unsigned char cont : 1; /* contiguous storage */ | 149 | u8 cont : 1; |
264 | unsigned char res2 : 1; /* reserved */ | 150 | u8 : 1; |
265 | unsigned char frag : 2; /* fragmentation (s.below) */ | 151 | u8 frag : 2; |
266 | unsigned char res3 : 2; /* reserved */ | 152 | u8 : 2; |
267 | } __attribute__ ((packed)); | 153 | } __attribute__ ((packed)); |
268 | 154 | ||
269 | #define SBAL_FLAGS_FIRST_FRAG 0x04000000UL | 155 | #define SBAL_FLAGS_FIRST_FRAG 0x04000000UL |
270 | #define SBAL_FLAGS_MIDDLE_FRAG 0x08000000UL | 156 | #define SBAL_FLAGS_MIDDLE_FRAG 0x08000000UL |
271 | #define SBAL_FLAGS_LAST_FRAG 0x0c000000UL | 157 | #define SBAL_FLAGS_LAST_FRAG 0x0c000000UL |
272 | #define SBAL_FLAGS_LAST_ENTRY 0x40000000UL | 158 | #define SBAL_FLAGS_LAST_ENTRY 0x40000000UL |
273 | #define SBAL_FLAGS_CONTIGUOUS 0x20000000UL | 159 | #define SBAL_FLAGS_CONTIGUOUS 0x20000000UL |
274 | 160 | ||
275 | #define SBAL_FLAGS0_DATA_CONTINUATION 0x20UL | 161 | #define SBAL_FLAGS0_DATA_CONTINUATION 0x20UL |
276 | 162 | ||
277 | /* Awesome OpenFCP extensions */ | 163 | /* Awesome OpenFCP extensions */ |
278 | #define SBAL_FLAGS0_TYPE_STATUS 0x00UL | 164 | #define SBAL_FLAGS0_TYPE_STATUS 0x00UL |
279 | #define SBAL_FLAGS0_TYPE_WRITE 0x08UL | 165 | #define SBAL_FLAGS0_TYPE_WRITE 0x08UL |
280 | #define SBAL_FLAGS0_TYPE_READ 0x10UL | 166 | #define SBAL_FLAGS0_TYPE_READ 0x10UL |
281 | #define SBAL_FLAGS0_TYPE_WRITE_READ 0x18UL | 167 | #define SBAL_FLAGS0_TYPE_WRITE_READ 0x18UL |
282 | #define SBAL_FLAGS0_MORE_SBALS 0x04UL | 168 | #define SBAL_FLAGS0_MORE_SBALS 0x04UL |
283 | #define SBAL_FLAGS0_COMMAND 0x02UL | 169 | #define SBAL_FLAGS0_COMMAND 0x02UL |
284 | #define SBAL_FLAGS0_LAST_SBAL 0x00UL | 170 | #define SBAL_FLAGS0_LAST_SBAL 0x00UL |
285 | #define SBAL_FLAGS0_ONLY_SBAL SBAL_FLAGS0_COMMAND | 171 | #define SBAL_FLAGS0_ONLY_SBAL SBAL_FLAGS0_COMMAND |
286 | #define SBAL_FLAGS0_MIDDLE_SBAL SBAL_FLAGS0_MORE_SBALS | 172 | #define SBAL_FLAGS0_MIDDLE_SBAL SBAL_FLAGS0_MORE_SBALS |
287 | #define SBAL_FLAGS0_FIRST_SBAL SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND | 173 | #define SBAL_FLAGS0_FIRST_SBAL SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND |
288 | /* Naught of interest beyond this point */ | 174 | #define SBAL_FLAGS0_PCI 0x40 |
289 | 175 | ||
290 | #define SBAL_FLAGS0_PCI 0x40 | 176 | /** |
177 | * struct sbal_sbalf_0 - sbal flags for sbale 0 | ||
178 | * @pci: PCI indicator | ||
179 | * @cont: data continuation | ||
180 | * @sbtype: storage-block type (FCP) | ||
181 | */ | ||
291 | struct sbal_sbalf_0 { | 182 | struct sbal_sbalf_0 { |
292 | unsigned char res1 : 1; /* reserved */ | 183 | u8 : 1; |
293 | unsigned char pci : 1; /* PCI indicator */ | 184 | u8 pci : 1; |
294 | unsigned char cont : 1; /* data continuation */ | 185 | u8 cont : 1; |
295 | unsigned char sbtype: 2; /* storage-block type (OpenFCP) */ | 186 | u8 sbtype : 2; |
296 | unsigned char res2 : 3; /* reserved */ | 187 | u8 : 3; |
297 | } __attribute__ ((packed)); | 188 | } __attribute__ ((packed)); |
298 | 189 | ||
190 | /** | ||
191 | * struct sbal_sbalf_1 - sbal flags for sbale 1 | ||
192 | * @key: storage key | ||
193 | */ | ||
299 | struct sbal_sbalf_1 { | 194 | struct sbal_sbalf_1 { |
300 | unsigned char res1 : 4; /* reserved */ | 195 | u8 : 4; |
301 | unsigned char key : 4; /* storage key */ | 196 | u8 key : 4; |
302 | } __attribute__ ((packed)); | 197 | } __attribute__ ((packed)); |
303 | 198 | ||
199 | /** | ||
200 | * struct sbal_sbalf_14 - sbal flags for sbale 14 | ||
201 | * @erridx: error index | ||
202 | */ | ||
304 | struct sbal_sbalf_14 { | 203 | struct sbal_sbalf_14 { |
305 | unsigned char res1 : 4; /* reserved */ | 204 | u8 : 4; |
306 | unsigned char erridx : 4; /* error index */ | 205 | u8 erridx : 4; |
307 | } __attribute__ ((packed)); | 206 | } __attribute__ ((packed)); |
308 | 207 | ||
208 | /** | ||
209 | * struct sbal_sbalf_15 - sbal flags for sbale 15 | ||
210 | * @reason: reason for error state | ||
211 | */ | ||
309 | struct sbal_sbalf_15 { | 212 | struct sbal_sbalf_15 { |
310 | unsigned char reason; /* reserved */ | 213 | u8 reason; |
311 | } __attribute__ ((packed)); | 214 | } __attribute__ ((packed)); |
312 | 215 | ||
216 | /** | ||
217 | * union sbal_sbalf - storage block address list flags | ||
218 | * @i0: sbalf0 | ||
219 | * @i1: sbalf1 | ||
220 | * @i14: sbalf14 | ||
221 | * @i15: sblaf15 | ||
222 | * @value: raw value | ||
223 | */ | ||
313 | union sbal_sbalf { | 224 | union sbal_sbalf { |
314 | struct sbal_sbalf_0 i0; | 225 | struct sbal_sbalf_0 i0; |
315 | struct sbal_sbalf_1 i1; | 226 | struct sbal_sbalf_1 i1; |
316 | struct sbal_sbalf_14 i14; | 227 | struct sbal_sbalf_14 i14; |
317 | struct sbal_sbalf_15 i15; | 228 | struct sbal_sbalf_15 i15; |
318 | unsigned char value; | 229 | u8 value; |
319 | }; | 230 | }; |
320 | 231 | ||
321 | struct sbal_element { | 232 | /** |
322 | union { | 233 | * struct qdio_buffer_element - SBAL entry |
323 | struct sbal_flags bits; /* flags */ | 234 | * @flags: flags |
324 | unsigned char value; | 235 | * @length: length |
325 | } flags; | 236 | * @addr: address |
326 | unsigned int res1 : 16; /* reserved */ | 237 | */ |
327 | union sbal_sbalf sbalf; /* SBAL flags */ | 238 | struct qdio_buffer_element { |
328 | unsigned int res2 : 16; /* reserved */ | 239 | u32 flags; |
329 | unsigned int count : 16; /* data count */ | 240 | u32 length; |
330 | #ifdef QDIO_32_BIT | 241 | #ifdef CONFIG_32BIT |
331 | unsigned long res3; /* reserved */ | 242 | /* private: */ |
332 | #endif /* QDIO_32_BIT */ | 243 | void *reserved; |
333 | unsigned long addr; /* absolute data address */ | 244 | /* public: */ |
334 | } __attribute__ ((packed,aligned(16))); | 245 | #endif |
246 | void *addr; | ||
247 | } __attribute__ ((packed, aligned(16))); | ||
335 | 248 | ||
336 | /* | 249 | /** |
337 | * strorage-block access-list (SBAL) | 250 | * struct qdio_buffer - storage block address list (SBAL) |
251 | * @element: SBAL entries | ||
338 | */ | 252 | */ |
339 | struct sbal { | 253 | struct qdio_buffer { |
340 | struct sbal_element element[QDIO_MAX_ELEMENTS_PER_BUFFER]; | 254 | struct qdio_buffer_element element[QDIO_MAX_ELEMENTS_PER_BUFFER]; |
341 | } __attribute__ ((packed,aligned(256))); | 255 | } __attribute__ ((packed, aligned(256))); |
342 | 256 | ||
343 | /* | 257 | /** |
344 | * storage-list (SL) | 258 | * struct sl_element - storage list entry |
259 | * @sbal: absolute SBAL address | ||
345 | */ | 260 | */ |
346 | struct sl_element { | 261 | struct sl_element { |
347 | #ifdef QDIO_32_BIT | 262 | #ifdef CONFIG_32BIT |
348 | unsigned long res; /* reserved */ | 263 | /* private: */ |
349 | #endif /* QDIO_32_BIT */ | 264 | unsigned long reserved; |
350 | unsigned long sbal; /* absolute SBAL address */ | 265 | /* public: */ |
266 | #endif | ||
267 | unsigned long sbal; | ||
351 | } __attribute__ ((packed)); | 268 | } __attribute__ ((packed)); |
352 | 269 | ||
270 | /** | ||
271 | * struct sl - storage list (SL) | ||
272 | * @element: SL entries | ||
273 | */ | ||
353 | struct sl { | 274 | struct sl { |
354 | struct sl_element element[QDIO_MAX_BUFFERS_PER_Q]; | 275 | struct sl_element element[QDIO_MAX_BUFFERS_PER_Q]; |
355 | } __attribute__ ((packed,aligned(1024))); | 276 | } __attribute__ ((packed, aligned(1024))); |
356 | 277 | ||
357 | /* | 278 | /** |
358 | * storage-list-state block (SLSB) | 279 | * struct slsb - storage list state block (SLSB) |
280 | * @val: state per buffer | ||
359 | */ | 281 | */ |
360 | struct slsb_flags { | 282 | struct slsb { |
361 | unsigned char owner : 2; /* SBAL owner */ | 283 | u8 val[QDIO_MAX_BUFFERS_PER_Q]; |
362 | unsigned char type : 1; /* buffer type */ | 284 | } __attribute__ ((packed, aligned(256))); |
363 | unsigned char state : 5; /* processing state */ | 285 | |
286 | struct qdio_ssqd_desc { | ||
287 | u8 flags; | ||
288 | u8:8; | ||
289 | u16 sch; | ||
290 | u8 qfmt; | ||
291 | u8 parm; | ||
292 | u8 qdioac1; | ||
293 | u8 sch_class; | ||
294 | u8 pcnt; | ||
295 | u8 icnt; | ||
296 | u8:8; | ||
297 | u8 ocnt; | ||
298 | u8:8; | ||
299 | u8 mbccnt; | ||
300 | u16 qdioac2; | ||
301 | u64 sch_token; | ||
302 | u64:64; | ||
364 | } __attribute__ ((packed)); | 303 | } __attribute__ ((packed)); |
365 | 304 | ||
305 | /* params are: ccw_device, qdio_error, queue_number, | ||
306 | first element processed, number of elements processed, int_parm */ | ||
307 | typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, | ||
308 | int, int, unsigned long); | ||
366 | 309 | ||
367 | struct slsb { | 310 | /* qdio errors reported to the upper-layer program */ |
368 | union { | 311 | #define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10 |
369 | unsigned char val[QDIO_MAX_BUFFERS_PER_Q]; | 312 | #define QDIO_ERROR_SIGA_BUSY 0x20 |
370 | struct slsb_flags flags[QDIO_MAX_BUFFERS_PER_Q]; | 313 | #define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40 |
371 | } acc; | 314 | #define QDIO_ERROR_SLSB_STATE 0x80 |
372 | } __attribute__ ((packed,aligned(256))); | ||
373 | 315 | ||
374 | /* | 316 | /* for qdio_initialize */ |
375 | * SLSB values | 317 | #define QDIO_INBOUND_0COPY_SBALS 0x01 |
318 | #define QDIO_OUTBOUND_0COPY_SBALS 0x02 | ||
319 | #define QDIO_USE_OUTBOUND_PCIS 0x04 | ||
320 | |||
321 | /* for qdio_cleanup */ | ||
322 | #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01 | ||
323 | #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 | ||
324 | |||
325 | /** | ||
326 | * struct qdio_initialize - qdio initalization data | ||
327 | * @cdev: associated ccw device | ||
328 | * @q_format: queue format | ||
329 | * @adapter_name: name for the adapter | ||
330 | * @qib_param_field_format: format for qib_parm_field | ||
331 | * @qib_param_field: pointer to 128 bytes or NULL, if no param field | ||
332 | * @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL | ||
333 | * @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL | ||
334 | * @no_input_qs: number of input queues | ||
335 | * @no_output_qs: number of output queues | ||
336 | * @input_handler: handler to be called for input queues | ||
337 | * @output_handler: handler to be called for output queues | ||
338 | * @int_parm: interruption parameter | ||
339 | * @flags: initialization flags | ||
340 | * @input_sbal_addr_array: address of no_input_qs * 128 pointers | ||
341 | * @output_sbal_addr_array: address of no_output_qs * 128 pointers | ||
376 | */ | 342 | */ |
377 | #define SLSB_OWNER_PROG 1 | 343 | struct qdio_initialize { |
378 | #define SLSB_OWNER_CU 2 | 344 | struct ccw_device *cdev; |
379 | 345 | unsigned char q_format; | |
380 | #define SLSB_TYPE_INPUT 0 | 346 | unsigned char adapter_name[8]; |
381 | #define SLSB_TYPE_OUTPUT 1 | 347 | unsigned int qib_param_field_format; |
382 | 348 | unsigned char *qib_param_field; | |
383 | #define SLSB_STATE_NOT_INIT 0 | 349 | unsigned long *input_slib_elements; |
384 | #define SLSB_STATE_EMPTY 1 | 350 | unsigned long *output_slib_elements; |
385 | #define SLSB_STATE_PRIMED 2 | 351 | unsigned int no_input_qs; |
386 | #define SLSB_STATE_HALTED 0xe | 352 | unsigned int no_output_qs; |
387 | #define SLSB_STATE_ERROR 0xf | 353 | qdio_handler_t *input_handler; |
388 | 354 | qdio_handler_t *output_handler; | |
389 | #define SLSB_P_INPUT_NOT_INIT 0x80 | 355 | unsigned long int_parm; |
390 | #define SLSB_P_INPUT_PROCESSING 0x81 | 356 | unsigned long flags; |
391 | #define SLSB_CU_INPUT_EMPTY 0x41 | 357 | void **input_sbal_addr_array; |
392 | #define SLSB_P_INPUT_PRIMED 0x82 | 358 | void **output_sbal_addr_array; |
393 | #define SLSB_P_INPUT_HALTED 0x8E | 359 | }; |
394 | #define SLSB_P_INPUT_ERROR 0x8F | 360 | |
395 | 361 | #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */ | |
396 | #define SLSB_P_OUTPUT_NOT_INIT 0xA0 | 362 | #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */ |
397 | #define SLSB_P_OUTPUT_EMPTY 0xA1 | 363 | #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */ |
398 | #define SLSB_CU_OUTPUT_PRIMED 0x62 | 364 | #define QDIO_STATE_STOPPED 0x00000010 /* after queues went down */ |
399 | #define SLSB_P_OUTPUT_HALTED 0xAE | 365 | |
400 | #define SLSB_P_OUTPUT_ERROR 0xAF | 366 | #define QDIO_FLAG_SYNC_INPUT 0x01 |
401 | 367 | #define QDIO_FLAG_SYNC_OUTPUT 0x02 | |
402 | #define SLSB_ERROR_DURING_LOOKUP 0xFF | 368 | #define QDIO_FLAG_PCI_OUT 0x10 |
369 | |||
370 | extern int qdio_initialize(struct qdio_initialize *init_data); | ||
371 | extern int qdio_allocate(struct qdio_initialize *init_data); | ||
372 | extern int qdio_establish(struct qdio_initialize *init_data); | ||
373 | extern int qdio_activate(struct ccw_device *); | ||
374 | |||
375 | extern int do_QDIO(struct ccw_device*, unsigned int flags, | ||
376 | int q_nr, int qidx, int count); | ||
377 | extern int qdio_cleanup(struct ccw_device*, int how); | ||
378 | extern int qdio_shutdown(struct ccw_device*, int how); | ||
379 | extern int qdio_free(struct ccw_device *); | ||
380 | extern struct qdio_ssqd_desc *qdio_get_ssqd_desc(struct ccw_device *cdev); | ||
403 | 381 | ||
404 | #endif /* __QDIO_H__ */ | 382 | #endif /* __QDIO_H__ */ |