1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /**************************************************************************** |
3 | * Driver for Solarflare network controllers and boards |
4 | * Copyright 2005-2006 Fen Systems Ltd. |
5 | * Copyright 2006-2013 Solarflare Communications Inc. |
6 | */ |
7 | |
8 | #ifndef EFX_BITFIELD_H |
9 | #define EFX_BITFIELD_H |
10 | |
11 | /* |
12 | * Efx bitfield access |
13 | * |
14 | * Efx NICs make extensive use of bitfields up to 128 bits |
15 | * wide. Since there is no native 128-bit datatype on most systems, |
16 | * and since 64-bit datatypes are inefficient on 32-bit systems and |
17 | * vice versa, we wrap accesses in a way that uses the most efficient |
18 | * datatype. |
19 | * |
20 | * The NICs are PCI devices and therefore little-endian. Since most |
21 | * of the quantities that we deal with are DMAed to/from host memory, |
22 | * we define our datatypes (efx_oword_t, efx_qword_t and |
23 | * efx_dword_t) to be little-endian. |
24 | */ |
25 | |
26 | /* Lowest bit numbers and widths */ |
27 | #define EFX_DUMMY_FIELD_LBN 0 |
28 | #define EFX_DUMMY_FIELD_WIDTH 0 |
29 | #define EFX_BYTE_0_LBN 0 |
30 | #define EFX_BYTE_0_WIDTH 8 |
31 | #define EFX_WORD_0_LBN 0 |
32 | #define EFX_WORD_0_WIDTH 16 |
33 | #define EFX_WORD_1_LBN 16 |
34 | #define EFX_WORD_1_WIDTH 16 |
35 | #define EFX_DWORD_0_LBN 0 |
36 | #define EFX_DWORD_0_WIDTH 32 |
37 | #define EFX_DWORD_1_LBN 32 |
38 | #define EFX_DWORD_1_WIDTH 32 |
39 | #define EFX_DWORD_2_LBN 64 |
40 | #define EFX_DWORD_2_WIDTH 32 |
41 | #define EFX_DWORD_3_LBN 96 |
42 | #define EFX_DWORD_3_WIDTH 32 |
43 | #define EFX_QWORD_0_LBN 0 |
44 | #define EFX_QWORD_0_WIDTH 64 |
45 | |
46 | /* Specified attribute (e.g. LBN) of the specified field */ |
47 | #define EFX_VAL(field, attribute) field ## _ ## attribute |
48 | /* Low bit number of the specified field */ |
49 | #define EFX_LOW_BIT(field) EFX_VAL(field, LBN) |
50 | /* Bit width of the specified field */ |
51 | #define EFX_WIDTH(field) EFX_VAL(field, WIDTH) |
52 | /* High bit number of the specified field */ |
53 | #define EFX_HIGH_BIT(field) (EFX_LOW_BIT(field) + EFX_WIDTH(field) - 1) |
54 | /* Mask equal in width to the specified field. |
55 | * |
56 | * For example, a field with width 5 would have a mask of 0x1f. |
57 | * |
58 | * The maximum width mask that can be generated is 64 bits. |
59 | */ |
60 | #define EFX_MASK64(width) \ |
61 | ((width) == 64 ? ~((u64) 0) : \ |
62 | (((((u64) 1) << (width))) - 1)) |
63 | |
64 | /* Mask equal in width to the specified field. |
65 | * |
66 | * For example, a field with width 5 would have a mask of 0x1f. |
67 | * |
68 | * The maximum width mask that can be generated is 32 bits. Use |
69 | * EFX_MASK64 for higher width fields. |
70 | */ |
71 | #define EFX_MASK32(width) \ |
72 | ((width) == 32 ? ~((u32) 0) : \ |
73 | (((((u32) 1) << (width))) - 1)) |
74 | |
75 | /* A doubleword (i.e. 4 byte) datatype - little-endian in HW */ |
76 | typedef union efx_dword { |
77 | __le32 u32[1]; |
78 | } efx_dword_t; |
79 | |
80 | /* A quadword (i.e. 8 byte) datatype - little-endian in HW */ |
81 | typedef union efx_qword { |
82 | __le64 u64[1]; |
83 | __le32 u32[2]; |
84 | efx_dword_t dword[2]; |
85 | } efx_qword_t; |
86 | |
87 | /* An octword (eight-word, i.e. 16 byte) datatype - little-endian in HW */ |
88 | typedef union efx_oword { |
89 | __le64 u64[2]; |
90 | efx_qword_t qword[2]; |
91 | __le32 u32[4]; |
92 | efx_dword_t dword[4]; |
93 | } efx_oword_t; |
94 | |
95 | /* Format string and value expanders for printk */ |
96 | #define EFX_DWORD_FMT "%08x" |
97 | #define EFX_QWORD_FMT "%08x:%08x" |
98 | #define EFX_OWORD_FMT "%08x:%08x:%08x:%08x" |
99 | #define EFX_DWORD_VAL(dword) \ |
100 | ((unsigned int) le32_to_cpu((dword).u32[0])) |
101 | #define EFX_QWORD_VAL(qword) \ |
102 | ((unsigned int) le32_to_cpu((qword).u32[1])), \ |
103 | ((unsigned int) le32_to_cpu((qword).u32[0])) |
104 | #define EFX_OWORD_VAL(oword) \ |
105 | ((unsigned int) le32_to_cpu((oword).u32[3])), \ |
106 | ((unsigned int) le32_to_cpu((oword).u32[2])), \ |
107 | ((unsigned int) le32_to_cpu((oword).u32[1])), \ |
108 | ((unsigned int) le32_to_cpu((oword).u32[0])) |
109 | |
110 | /* |
111 | * Extract bit field portion [low,high) from the native-endian element |
112 | * which contains bits [min,max). |
113 | * |
114 | * For example, suppose "element" represents the high 32 bits of a |
115 | * 64-bit value, and we wish to extract the bits belonging to the bit |
116 | * field occupying bits 28-45 of this 64-bit value. |
117 | * |
118 | * Then EFX_EXTRACT ( element, 32, 63, 28, 45 ) would give |
119 | * |
120 | * ( element ) << 4 |
121 | * |
122 | * The result will contain the relevant bits filled in in the range |
123 | * [0,high-low), with garbage in bits [high-low+1,...). |
124 | */ |
125 | #define (native_element, min, max, low, high) \ |
126 | ((low) > (max) || (high) < (min) ? 0 : \ |
127 | (low) > (min) ? \ |
128 | (native_element) >> ((low) - (min)) : \ |
129 | (native_element) << ((min) - (low))) |
130 | |
131 | /* |
132 | * Extract bit field portion [low,high) from the 64-bit little-endian |
133 | * element which contains bits [min,max) |
134 | */ |
135 | #define (element, min, max, low, high) \ |
136 | EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high) |
137 | |
138 | /* |
139 | * Extract bit field portion [low,high) from the 32-bit little-endian |
140 | * element which contains bits [min,max) |
141 | */ |
142 | #define (element, min, max, low, high) \ |
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high) |
144 | |
145 | #define (oword, low, high) \ |
146 | ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \ |
147 | EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \ |
148 | EFX_MASK64((high) + 1 - (low))) |
149 | |
150 | #define (qword, low, high) \ |
151 | (EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) & \ |
152 | EFX_MASK64((high) + 1 - (low))) |
153 | |
154 | #define (oword, low, high) \ |
155 | ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \ |
156 | EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \ |
157 | EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \ |
158 | EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \ |
159 | EFX_MASK32((high) + 1 - (low))) |
160 | |
161 | #define (qword, low, high) \ |
162 | ((EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \ |
163 | EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \ |
164 | EFX_MASK32((high) + 1 - (low))) |
165 | |
166 | #define (dword, low, high) \ |
167 | (EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) & \ |
168 | EFX_MASK32((high) + 1 - (low))) |
169 | |
170 | #define EFX_OWORD_FIELD64(oword, field) \ |
171 | EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \ |
172 | EFX_HIGH_BIT(field)) |
173 | |
174 | #define EFX_QWORD_FIELD64(qword, field) \ |
175 | EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), \ |
176 | EFX_HIGH_BIT(field)) |
177 | |
178 | #define EFX_OWORD_FIELD32(oword, field) \ |
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \ |
180 | EFX_HIGH_BIT(field)) |
181 | |
182 | #define EFX_QWORD_FIELD32(qword, field) \ |
183 | EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \ |
184 | EFX_HIGH_BIT(field)) |
185 | |
186 | #define EFX_DWORD_FIELD(dword, field) \ |
187 | EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), \ |
188 | EFX_HIGH_BIT(field)) |
189 | |
190 | #define EFX_OWORD_IS_ZERO64(oword) \ |
191 | (((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0) |
192 | |
193 | #define EFX_QWORD_IS_ZERO64(qword) \ |
194 | (((qword).u64[0]) == (__force __le64) 0) |
195 | |
196 | #define EFX_OWORD_IS_ZERO32(oword) \ |
197 | (((oword).u32[0] | (oword).u32[1] | (oword).u32[2] | (oword).u32[3]) \ |
198 | == (__force __le32) 0) |
199 | |
200 | #define EFX_QWORD_IS_ZERO32(qword) \ |
201 | (((qword).u32[0] | (qword).u32[1]) == (__force __le32) 0) |
202 | |
203 | #define EFX_DWORD_IS_ZERO(dword) \ |
204 | (((dword).u32[0]) == (__force __le32) 0) |
205 | |
206 | #define EFX_OWORD_IS_ALL_ONES64(oword) \ |
207 | (((oword).u64[0] & (oword).u64[1]) == ~((__force __le64) 0)) |
208 | |
209 | #define EFX_QWORD_IS_ALL_ONES64(qword) \ |
210 | ((qword).u64[0] == ~((__force __le64) 0)) |
211 | |
212 | #define EFX_OWORD_IS_ALL_ONES32(oword) \ |
213 | (((oword).u32[0] & (oword).u32[1] & (oword).u32[2] & (oword).u32[3]) \ |
214 | == ~((__force __le32) 0)) |
215 | |
216 | #define EFX_QWORD_IS_ALL_ONES32(qword) \ |
217 | (((qword).u32[0] & (qword).u32[1]) == ~((__force __le32) 0)) |
218 | |
219 | #define EFX_DWORD_IS_ALL_ONES(dword) \ |
220 | ((dword).u32[0] == ~((__force __le32) 0)) |
221 | |
222 | #if BITS_PER_LONG == 64 |
223 | #define EFX_OWORD_FIELD EFX_OWORD_FIELD64 |
224 | #define EFX_QWORD_FIELD EFX_QWORD_FIELD64 |
225 | #define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO64 |
226 | #define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO64 |
227 | #define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES64 |
228 | #define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES64 |
229 | #else |
230 | #define EFX_OWORD_FIELD EFX_OWORD_FIELD32 |
231 | #define EFX_QWORD_FIELD EFX_QWORD_FIELD32 |
232 | #define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO32 |
233 | #define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO32 |
234 | #define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES32 |
235 | #define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES32 |
236 | #endif |
237 | |
238 | /* |
239 | * Construct bit field portion |
240 | * |
241 | * Creates the portion of the bit field [low,high) that lies within |
242 | * the range [min,max). |
243 | */ |
244 | #define EFX_INSERT_NATIVE64(min, max, low, high, value) \ |
245 | (((low > max) || (high < min)) ? 0 : \ |
246 | ((low > min) ? \ |
247 | (((u64) (value)) << (low - min)) : \ |
248 | (((u64) (value)) >> (min - low)))) |
249 | |
250 | #define EFX_INSERT_NATIVE32(min, max, low, high, value) \ |
251 | (((low > max) || (high < min)) ? 0 : \ |
252 | ((low > min) ? \ |
253 | (((u32) (value)) << (low - min)) : \ |
254 | (((u32) (value)) >> (min - low)))) |
255 | |
256 | #define EFX_INSERT_NATIVE(min, max, low, high, value) \ |
257 | ((((max - min) >= 32) || ((high - low) >= 32)) ? \ |
258 | EFX_INSERT_NATIVE64(min, max, low, high, value) : \ |
259 | EFX_INSERT_NATIVE32(min, max, low, high, value)) |
260 | |
261 | /* |
262 | * Construct bit field portion |
263 | * |
264 | * Creates the portion of the named bit field that lies within the |
265 | * range [min,max). |
266 | */ |
267 | #define EFX_INSERT_FIELD_NATIVE(min, max, field, value) \ |
268 | EFX_INSERT_NATIVE(min, max, EFX_LOW_BIT(field), \ |
269 | EFX_HIGH_BIT(field), value) |
270 | |
271 | /* |
272 | * Construct bit field |
273 | * |
274 | * Creates the portion of the named bit fields that lie within the |
275 | * range [min,max). |
276 | */ |
277 | #define EFX_INSERT_FIELDS_NATIVE(min, max, \ |
278 | field1, value1, \ |
279 | field2, value2, \ |
280 | field3, value3, \ |
281 | field4, value4, \ |
282 | field5, value5, \ |
283 | field6, value6, \ |
284 | field7, value7, \ |
285 | field8, value8, \ |
286 | field9, value9, \ |
287 | field10, value10, \ |
288 | field11, value11, \ |
289 | field12, value12, \ |
290 | field13, value13, \ |
291 | field14, value14, \ |
292 | field15, value15, \ |
293 | field16, value16, \ |
294 | field17, value17, \ |
295 | field18, value18, \ |
296 | field19, value19) \ |
297 | (EFX_INSERT_FIELD_NATIVE((min), (max), field1, (value1)) | \ |
298 | EFX_INSERT_FIELD_NATIVE((min), (max), field2, (value2)) | \ |
299 | EFX_INSERT_FIELD_NATIVE((min), (max), field3, (value3)) | \ |
300 | EFX_INSERT_FIELD_NATIVE((min), (max), field4, (value4)) | \ |
301 | EFX_INSERT_FIELD_NATIVE((min), (max), field5, (value5)) | \ |
302 | EFX_INSERT_FIELD_NATIVE((min), (max), field6, (value6)) | \ |
303 | EFX_INSERT_FIELD_NATIVE((min), (max), field7, (value7)) | \ |
304 | EFX_INSERT_FIELD_NATIVE((min), (max), field8, (value8)) | \ |
305 | EFX_INSERT_FIELD_NATIVE((min), (max), field9, (value9)) | \ |
306 | EFX_INSERT_FIELD_NATIVE((min), (max), field10, (value10)) | \ |
307 | EFX_INSERT_FIELD_NATIVE((min), (max), field11, (value11)) | \ |
308 | EFX_INSERT_FIELD_NATIVE((min), (max), field12, (value12)) | \ |
309 | EFX_INSERT_FIELD_NATIVE((min), (max), field13, (value13)) | \ |
310 | EFX_INSERT_FIELD_NATIVE((min), (max), field14, (value14)) | \ |
311 | EFX_INSERT_FIELD_NATIVE((min), (max), field15, (value15)) | \ |
312 | EFX_INSERT_FIELD_NATIVE((min), (max), field16, (value16)) | \ |
313 | EFX_INSERT_FIELD_NATIVE((min), (max), field17, (value17)) | \ |
314 | EFX_INSERT_FIELD_NATIVE((min), (max), field18, (value18)) | \ |
315 | EFX_INSERT_FIELD_NATIVE((min), (max), field19, (value19))) |
316 | |
317 | #define EFX_INSERT_FIELDS64(...) \ |
318 | cpu_to_le64(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__)) |
319 | |
320 | #define EFX_INSERT_FIELDS32(...) \ |
321 | cpu_to_le32(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__)) |
322 | |
323 | #define EFX_POPULATE_OWORD64(oword, ...) do { \ |
324 | (oword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \ |
325 | (oword).u64[1] = EFX_INSERT_FIELDS64(64, 127, __VA_ARGS__); \ |
326 | } while (0) |
327 | |
328 | #define EFX_POPULATE_QWORD64(qword, ...) do { \ |
329 | (qword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \ |
330 | } while (0) |
331 | |
332 | #define EFX_POPULATE_OWORD32(oword, ...) do { \ |
333 | (oword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \ |
334 | (oword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \ |
335 | (oword).u32[2] = EFX_INSERT_FIELDS32(64, 95, __VA_ARGS__); \ |
336 | (oword).u32[3] = EFX_INSERT_FIELDS32(96, 127, __VA_ARGS__); \ |
337 | } while (0) |
338 | |
339 | #define EFX_POPULATE_QWORD32(qword, ...) do { \ |
340 | (qword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \ |
341 | (qword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \ |
342 | } while (0) |
343 | |
344 | #define EFX_POPULATE_DWORD(dword, ...) do { \ |
345 | (dword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \ |
346 | } while (0) |
347 | |
348 | #if BITS_PER_LONG == 64 |
349 | #define EFX_POPULATE_OWORD EFX_POPULATE_OWORD64 |
350 | #define EFX_POPULATE_QWORD EFX_POPULATE_QWORD64 |
351 | #else |
352 | #define EFX_POPULATE_OWORD EFX_POPULATE_OWORD32 |
353 | #define EFX_POPULATE_QWORD EFX_POPULATE_QWORD32 |
354 | #endif |
355 | |
356 | /* Populate an octword field with various numbers of arguments */ |
357 | #define EFX_POPULATE_OWORD_19 EFX_POPULATE_OWORD |
358 | #define EFX_POPULATE_OWORD_18(oword, ...) \ |
359 | EFX_POPULATE_OWORD_19(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
360 | #define EFX_POPULATE_OWORD_17(oword, ...) \ |
361 | EFX_POPULATE_OWORD_18(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
362 | #define EFX_POPULATE_OWORD_16(oword, ...) \ |
363 | EFX_POPULATE_OWORD_17(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
364 | #define EFX_POPULATE_OWORD_15(oword, ...) \ |
365 | EFX_POPULATE_OWORD_16(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
366 | #define EFX_POPULATE_OWORD_14(oword, ...) \ |
367 | EFX_POPULATE_OWORD_15(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
368 | #define EFX_POPULATE_OWORD_13(oword, ...) \ |
369 | EFX_POPULATE_OWORD_14(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
370 | #define EFX_POPULATE_OWORD_12(oword, ...) \ |
371 | EFX_POPULATE_OWORD_13(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
372 | #define EFX_POPULATE_OWORD_11(oword, ...) \ |
373 | EFX_POPULATE_OWORD_12(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
374 | #define EFX_POPULATE_OWORD_10(oword, ...) \ |
375 | EFX_POPULATE_OWORD_11(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
376 | #define EFX_POPULATE_OWORD_9(oword, ...) \ |
377 | EFX_POPULATE_OWORD_10(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
378 | #define EFX_POPULATE_OWORD_8(oword, ...) \ |
379 | EFX_POPULATE_OWORD_9(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
380 | #define EFX_POPULATE_OWORD_7(oword, ...) \ |
381 | EFX_POPULATE_OWORD_8(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
382 | #define EFX_POPULATE_OWORD_6(oword, ...) \ |
383 | EFX_POPULATE_OWORD_7(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
384 | #define EFX_POPULATE_OWORD_5(oword, ...) \ |
385 | EFX_POPULATE_OWORD_6(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
386 | #define EFX_POPULATE_OWORD_4(oword, ...) \ |
387 | EFX_POPULATE_OWORD_5(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
388 | #define EFX_POPULATE_OWORD_3(oword, ...) \ |
389 | EFX_POPULATE_OWORD_4(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
390 | #define EFX_POPULATE_OWORD_2(oword, ...) \ |
391 | EFX_POPULATE_OWORD_3(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
392 | #define EFX_POPULATE_OWORD_1(oword, ...) \ |
393 | EFX_POPULATE_OWORD_2(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
394 | #define EFX_ZERO_OWORD(oword) \ |
395 | EFX_POPULATE_OWORD_1(oword, EFX_DUMMY_FIELD, 0) |
396 | #define EFX_SET_OWORD(oword) \ |
397 | EFX_POPULATE_OWORD_4(oword, \ |
398 | EFX_DWORD_0, 0xffffffff, \ |
399 | EFX_DWORD_1, 0xffffffff, \ |
400 | EFX_DWORD_2, 0xffffffff, \ |
401 | EFX_DWORD_3, 0xffffffff) |
402 | |
403 | /* Populate a quadword field with various numbers of arguments */ |
404 | #define EFX_POPULATE_QWORD_19 EFX_POPULATE_QWORD |
405 | #define EFX_POPULATE_QWORD_18(qword, ...) \ |
406 | EFX_POPULATE_QWORD_19(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
407 | #define EFX_POPULATE_QWORD_17(qword, ...) \ |
408 | EFX_POPULATE_QWORD_18(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
409 | #define EFX_POPULATE_QWORD_16(qword, ...) \ |
410 | EFX_POPULATE_QWORD_17(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
411 | #define EFX_POPULATE_QWORD_15(qword, ...) \ |
412 | EFX_POPULATE_QWORD_16(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
413 | #define EFX_POPULATE_QWORD_14(qword, ...) \ |
414 | EFX_POPULATE_QWORD_15(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
415 | #define EFX_POPULATE_QWORD_13(qword, ...) \ |
416 | EFX_POPULATE_QWORD_14(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
417 | #define EFX_POPULATE_QWORD_12(qword, ...) \ |
418 | EFX_POPULATE_QWORD_13(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
419 | #define EFX_POPULATE_QWORD_11(qword, ...) \ |
420 | EFX_POPULATE_QWORD_12(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
421 | #define EFX_POPULATE_QWORD_10(qword, ...) \ |
422 | EFX_POPULATE_QWORD_11(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
423 | #define EFX_POPULATE_QWORD_9(qword, ...) \ |
424 | EFX_POPULATE_QWORD_10(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
425 | #define EFX_POPULATE_QWORD_8(qword, ...) \ |
426 | EFX_POPULATE_QWORD_9(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
427 | #define EFX_POPULATE_QWORD_7(qword, ...) \ |
428 | EFX_POPULATE_QWORD_8(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
429 | #define EFX_POPULATE_QWORD_6(qword, ...) \ |
430 | EFX_POPULATE_QWORD_7(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
431 | #define EFX_POPULATE_QWORD_5(qword, ...) \ |
432 | EFX_POPULATE_QWORD_6(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
433 | #define EFX_POPULATE_QWORD_4(qword, ...) \ |
434 | EFX_POPULATE_QWORD_5(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
435 | #define EFX_POPULATE_QWORD_3(qword, ...) \ |
436 | EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
437 | #define EFX_POPULATE_QWORD_2(qword, ...) \ |
438 | EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
439 | #define EFX_POPULATE_QWORD_1(qword, ...) \ |
440 | EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
441 | #define EFX_ZERO_QWORD(qword) \ |
442 | EFX_POPULATE_QWORD_1(qword, EFX_DUMMY_FIELD, 0) |
443 | #define EFX_SET_QWORD(qword) \ |
444 | EFX_POPULATE_QWORD_2(qword, \ |
445 | EFX_DWORD_0, 0xffffffff, \ |
446 | EFX_DWORD_1, 0xffffffff) |
447 | |
448 | /* Populate a dword field with various numbers of arguments */ |
449 | #define EFX_POPULATE_DWORD_19 EFX_POPULATE_DWORD |
450 | #define EFX_POPULATE_DWORD_18(dword, ...) \ |
451 | EFX_POPULATE_DWORD_19(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
452 | #define EFX_POPULATE_DWORD_17(dword, ...) \ |
453 | EFX_POPULATE_DWORD_18(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
454 | #define EFX_POPULATE_DWORD_16(dword, ...) \ |
455 | EFX_POPULATE_DWORD_17(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
456 | #define EFX_POPULATE_DWORD_15(dword, ...) \ |
457 | EFX_POPULATE_DWORD_16(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
458 | #define EFX_POPULATE_DWORD_14(dword, ...) \ |
459 | EFX_POPULATE_DWORD_15(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
460 | #define EFX_POPULATE_DWORD_13(dword, ...) \ |
461 | EFX_POPULATE_DWORD_14(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
462 | #define EFX_POPULATE_DWORD_12(dword, ...) \ |
463 | EFX_POPULATE_DWORD_13(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
464 | #define EFX_POPULATE_DWORD_11(dword, ...) \ |
465 | EFX_POPULATE_DWORD_12(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
466 | #define EFX_POPULATE_DWORD_10(dword, ...) \ |
467 | EFX_POPULATE_DWORD_11(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
468 | #define EFX_POPULATE_DWORD_9(dword, ...) \ |
469 | EFX_POPULATE_DWORD_10(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
470 | #define EFX_POPULATE_DWORD_8(dword, ...) \ |
471 | EFX_POPULATE_DWORD_9(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
472 | #define EFX_POPULATE_DWORD_7(dword, ...) \ |
473 | EFX_POPULATE_DWORD_8(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
474 | #define EFX_POPULATE_DWORD_6(dword, ...) \ |
475 | EFX_POPULATE_DWORD_7(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
476 | #define EFX_POPULATE_DWORD_5(dword, ...) \ |
477 | EFX_POPULATE_DWORD_6(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
478 | #define EFX_POPULATE_DWORD_4(dword, ...) \ |
479 | EFX_POPULATE_DWORD_5(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
480 | #define EFX_POPULATE_DWORD_3(dword, ...) \ |
481 | EFX_POPULATE_DWORD_4(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
482 | #define EFX_POPULATE_DWORD_2(dword, ...) \ |
483 | EFX_POPULATE_DWORD_3(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
484 | #define EFX_POPULATE_DWORD_1(dword, ...) \ |
485 | EFX_POPULATE_DWORD_2(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) |
486 | #define EFX_ZERO_DWORD(dword) \ |
487 | EFX_POPULATE_DWORD_1(dword, EFX_DUMMY_FIELD, 0) |
488 | #define EFX_SET_DWORD(dword) \ |
489 | EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xffffffff) |
490 | |
491 | /* |
492 | * Modify a named field within an already-populated structure. Used |
493 | * for read-modify-write operations. |
494 | * |
495 | */ |
496 | #define EFX_INVERT_OWORD(oword) do { \ |
497 | (oword).u64[0] = ~((oword).u64[0]); \ |
498 | (oword).u64[1] = ~((oword).u64[1]); \ |
499 | } while (0) |
500 | |
501 | #define EFX_AND_OWORD(oword, from, mask) \ |
502 | do { \ |
503 | (oword).u64[0] = (from).u64[0] & (mask).u64[0]; \ |
504 | (oword).u64[1] = (from).u64[1] & (mask).u64[1]; \ |
505 | } while (0) |
506 | |
507 | #define EFX_AND_QWORD(qword, from, mask) \ |
508 | (qword).u64[0] = (from).u64[0] & (mask).u64[0] |
509 | |
510 | #define EFX_OR_OWORD(oword, from, mask) \ |
511 | do { \ |
512 | (oword).u64[0] = (from).u64[0] | (mask).u64[0]; \ |
513 | (oword).u64[1] = (from).u64[1] | (mask).u64[1]; \ |
514 | } while (0) |
515 | |
516 | #define EFX_INSERT64(min, max, low, high, value) \ |
517 | cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value)) |
518 | |
519 | #define EFX_INSERT32(min, max, low, high, value) \ |
520 | cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value)) |
521 | |
522 | #define EFX_INPLACE_MASK64(min, max, low, high) \ |
523 | EFX_INSERT64(min, max, low, high, EFX_MASK64((high) + 1 - (low))) |
524 | |
525 | #define EFX_INPLACE_MASK32(min, max, low, high) \ |
526 | EFX_INSERT32(min, max, low, high, EFX_MASK32((high) + 1 - (low))) |
527 | |
528 | #define EFX_SET_OWORD64(oword, low, high, value) do { \ |
529 | (oword).u64[0] = (((oword).u64[0] \ |
530 | & ~EFX_INPLACE_MASK64(0, 63, low, high)) \ |
531 | | EFX_INSERT64(0, 63, low, high, value)); \ |
532 | (oword).u64[1] = (((oword).u64[1] \ |
533 | & ~EFX_INPLACE_MASK64(64, 127, low, high)) \ |
534 | | EFX_INSERT64(64, 127, low, high, value)); \ |
535 | } while (0) |
536 | |
537 | #define EFX_SET_QWORD64(qword, low, high, value) do { \ |
538 | (qword).u64[0] = (((qword).u64[0] \ |
539 | & ~EFX_INPLACE_MASK64(0, 63, low, high)) \ |
540 | | EFX_INSERT64(0, 63, low, high, value)); \ |
541 | } while (0) |
542 | |
543 | #define EFX_SET_OWORD32(oword, low, high, value) do { \ |
544 | (oword).u32[0] = (((oword).u32[0] \ |
545 | & ~EFX_INPLACE_MASK32(0, 31, low, high)) \ |
546 | | EFX_INSERT32(0, 31, low, high, value)); \ |
547 | (oword).u32[1] = (((oword).u32[1] \ |
548 | & ~EFX_INPLACE_MASK32(32, 63, low, high)) \ |
549 | | EFX_INSERT32(32, 63, low, high, value)); \ |
550 | (oword).u32[2] = (((oword).u32[2] \ |
551 | & ~EFX_INPLACE_MASK32(64, 95, low, high)) \ |
552 | | EFX_INSERT32(64, 95, low, high, value)); \ |
553 | (oword).u32[3] = (((oword).u32[3] \ |
554 | & ~EFX_INPLACE_MASK32(96, 127, low, high)) \ |
555 | | EFX_INSERT32(96, 127, low, high, value)); \ |
556 | } while (0) |
557 | |
558 | #define EFX_SET_QWORD32(qword, low, high, value) do { \ |
559 | (qword).u32[0] = (((qword).u32[0] \ |
560 | & ~EFX_INPLACE_MASK32(0, 31, low, high)) \ |
561 | | EFX_INSERT32(0, 31, low, high, value)); \ |
562 | (qword).u32[1] = (((qword).u32[1] \ |
563 | & ~EFX_INPLACE_MASK32(32, 63, low, high)) \ |
564 | | EFX_INSERT32(32, 63, low, high, value)); \ |
565 | } while (0) |
566 | |
567 | #define EFX_SET_DWORD32(dword, low, high, value) do { \ |
568 | (dword).u32[0] = (((dword).u32[0] \ |
569 | & ~EFX_INPLACE_MASK32(0, 31, low, high)) \ |
570 | | EFX_INSERT32(0, 31, low, high, value)); \ |
571 | } while (0) |
572 | |
573 | #define EFX_SET_OWORD_FIELD64(oword, field, value) \ |
574 | EFX_SET_OWORD64(oword, EFX_LOW_BIT(field), \ |
575 | EFX_HIGH_BIT(field), value) |
576 | |
577 | #define EFX_SET_QWORD_FIELD64(qword, field, value) \ |
578 | EFX_SET_QWORD64(qword, EFX_LOW_BIT(field), \ |
579 | EFX_HIGH_BIT(field), value) |
580 | |
581 | #define EFX_SET_OWORD_FIELD32(oword, field, value) \ |
582 | EFX_SET_OWORD32(oword, EFX_LOW_BIT(field), \ |
583 | EFX_HIGH_BIT(field), value) |
584 | |
585 | #define EFX_SET_QWORD_FIELD32(qword, field, value) \ |
586 | EFX_SET_QWORD32(qword, EFX_LOW_BIT(field), \ |
587 | EFX_HIGH_BIT(field), value) |
588 | |
589 | #define EFX_SET_DWORD_FIELD(dword, field, value) \ |
590 | EFX_SET_DWORD32(dword, EFX_LOW_BIT(field), \ |
591 | EFX_HIGH_BIT(field), value) |
592 | |
593 | |
594 | |
595 | #if BITS_PER_LONG == 64 |
596 | #define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD64 |
597 | #define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD64 |
598 | #else |
599 | #define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD32 |
600 | #define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD32 |
601 | #endif |
602 | |
603 | /* Used to avoid compiler warnings about shift range exceeding width |
604 | * of the data types when dma_addr_t is only 32 bits wide. |
605 | */ |
606 | #define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t)) |
607 | #define EFX_DMA_TYPE_WIDTH(width) \ |
608 | (((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH) |
609 | |
610 | |
611 | /* Static initialiser */ |
612 | #define EFX_OWORD32(a, b, c, d) \ |
613 | { .u32 = { cpu_to_le32(a), cpu_to_le32(b), \ |
614 | cpu_to_le32(c), cpu_to_le32(d) } } |
615 | |
616 | #endif /* EFX_BITFIELD_H */ |
617 | |