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diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
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1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2009 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11#ifndef EFX_BITFIELD_H
12#define EFX_BITFIELD_H
13
14/*
15 * Efx bitfield access
16 *
17 * Efx NICs make extensive use of bitfields up to 128 bits
18 * wide. Since there is no native 128-bit datatype on most systems,
19 * and since 64-bit datatypes are inefficient on 32-bit systems and
20 * vice versa, we wrap accesses in a way that uses the most efficient
21 * datatype.
22 *
23 * The NICs are PCI devices and therefore little-endian. Since most
24 * of the quantities that we deal with are DMAed to/from host memory,
25 * we define our datatypes (efx_oword_t, efx_qword_t and
26 * efx_dword_t) to be little-endian.
27 */
28
29/* Lowest bit numbers and widths */
30#define EFX_DUMMY_FIELD_LBN 0
31#define EFX_DUMMY_FIELD_WIDTH 0
32#define EFX_DWORD_0_LBN 0
33#define EFX_DWORD_0_WIDTH 32
34#define EFX_DWORD_1_LBN 32
35#define EFX_DWORD_1_WIDTH 32
36#define EFX_DWORD_2_LBN 64
37#define EFX_DWORD_2_WIDTH 32
38#define EFX_DWORD_3_LBN 96
39#define EFX_DWORD_3_WIDTH 32
40#define EFX_QWORD_0_LBN 0
41#define EFX_QWORD_0_WIDTH 64
42
43/* Specified attribute (e.g. LBN) of the specified field */
44#define EFX_VAL(field, attribute) field ## _ ## attribute
45/* Low bit number of the specified field */
46#define EFX_LOW_BIT(field) EFX_VAL(field, LBN)
47/* Bit width of the specified field */
48#define EFX_WIDTH(field) EFX_VAL(field, WIDTH)
49/* High bit number of the specified field */
50#define EFX_HIGH_BIT(field) (EFX_LOW_BIT(field) + EFX_WIDTH(field) - 1)
51/* Mask equal in width to the specified field.
52 *
53 * For example, a field with width 5 would have a mask of 0x1f.
54 *
55 * The maximum width mask that can be generated is 64 bits.
56 */
57#define EFX_MASK64(width) \
58 ((width) == 64 ? ~((u64) 0) : \
59 (((((u64) 1) << (width))) - 1))
60
61/* Mask equal in width to the specified field.
62 *
63 * For example, a field with width 5 would have a mask of 0x1f.
64 *
65 * The maximum width mask that can be generated is 32 bits. Use
66 * EFX_MASK64 for higher width fields.
67 */
68#define EFX_MASK32(width) \
69 ((width) == 32 ? ~((u32) 0) : \
70 (((((u32) 1) << (width))) - 1))
71
72/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */
73typedef union efx_dword {
74 __le32 u32[1];
75} efx_dword_t;
76
77/* A quadword (i.e. 8 byte) datatype - little-endian in HW */
78typedef union efx_qword {
79 __le64 u64[1];
80 __le32 u32[2];
81 efx_dword_t dword[2];
82} efx_qword_t;
83
84/* An octword (eight-word, i.e. 16 byte) datatype - little-endian in HW */
85typedef union efx_oword {
86 __le64 u64[2];
87 efx_qword_t qword[2];
88 __le32 u32[4];
89 efx_dword_t dword[4];
90} efx_oword_t;
91
92/* Format string and value expanders for printk */
93#define EFX_DWORD_FMT "%08x"
94#define EFX_QWORD_FMT "%08x:%08x"
95#define EFX_OWORD_FMT "%08x:%08x:%08x:%08x"
96#define EFX_DWORD_VAL(dword) \
97 ((unsigned int) le32_to_cpu((dword).u32[0]))
98#define EFX_QWORD_VAL(qword) \
99 ((unsigned int) le32_to_cpu((qword).u32[1])), \
100 ((unsigned int) le32_to_cpu((qword).u32[0]))
101#define EFX_OWORD_VAL(oword) \
102 ((unsigned int) le32_to_cpu((oword).u32[3])), \
103 ((unsigned int) le32_to_cpu((oword).u32[2])), \
104 ((unsigned int) le32_to_cpu((oword).u32[1])), \
105 ((unsigned int) le32_to_cpu((oword).u32[0]))
106
107/*
108 * Extract bit field portion [low,high) from the native-endian element
109 * which contains bits [min,max).
110 *
111 * For example, suppose "element" represents the high 32 bits of a
112 * 64-bit value, and we wish to extract the bits belonging to the bit
113 * field occupying bits 28-45 of this 64-bit value.
114 *
115 * Then EFX_EXTRACT ( element, 32, 63, 28, 45 ) would give
116 *
117 * ( element ) << 4
118 *
119 * The result will contain the relevant bits filled in in the range
120 * [0,high-low), with garbage in bits [high-low+1,...).
121 */
122#define EFX_EXTRACT_NATIVE(native_element, min, max, low, high) \
123 (((low > max) || (high < min)) ? 0 : \
124 ((low > min) ? \
125 ((native_element) >> (low - min)) : \
126 ((native_element) << (min - low))))
127
128/*
129 * Extract bit field portion [low,high) from the 64-bit little-endian
130 * element which contains bits [min,max)
131 */
132#define EFX_EXTRACT64(element, min, max, low, high) \
133 EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)
134
135/*
136 * Extract bit field portion [low,high) from the 32-bit little-endian
137 * element which contains bits [min,max)
138 */
139#define EFX_EXTRACT32(element, min, max, low, high) \
140 EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
141
142#define EFX_EXTRACT_OWORD64(oword, low, high) \
143 ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
144 EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \
145 EFX_MASK64(high + 1 - low))
146
147#define EFX_EXTRACT_QWORD64(qword, low, high) \
148 (EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) & \
149 EFX_MASK64(high + 1 - low))
150
151#define EFX_EXTRACT_OWORD32(oword, low, high) \
152 ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
153 EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
154 EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \
155 EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \
156 EFX_MASK32(high + 1 - low))
157
158#define EFX_EXTRACT_QWORD32(qword, low, high) \
159 ((EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \
160 EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \
161 EFX_MASK32(high + 1 - low))
162
163#define EFX_EXTRACT_DWORD(dword, low, high) \
164 (EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) & \
165 EFX_MASK32(high + 1 - low))
166
167#define EFX_OWORD_FIELD64(oword, field) \
168 EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
169 EFX_HIGH_BIT(field))
170
171#define EFX_QWORD_FIELD64(qword, field) \
172 EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), \
173 EFX_HIGH_BIT(field))
174
175#define EFX_OWORD_FIELD32(oword, field) \
176 EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
177 EFX_HIGH_BIT(field))
178
179#define EFX_QWORD_FIELD32(qword, field) \
180 EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \
181 EFX_HIGH_BIT(field))
182
183#define EFX_DWORD_FIELD(dword, field) \
184 EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), \
185 EFX_HIGH_BIT(field))
186
187#define EFX_OWORD_IS_ZERO64(oword) \
188 (((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0)
189
190#define EFX_QWORD_IS_ZERO64(qword) \
191 (((qword).u64[0]) == (__force __le64) 0)
192
193#define EFX_OWORD_IS_ZERO32(oword) \
194 (((oword).u32[0] | (oword).u32[1] | (oword).u32[2] | (oword).u32[3]) \
195 == (__force __le32) 0)
196
197#define EFX_QWORD_IS_ZERO32(qword) \
198 (((qword).u32[0] | (qword).u32[1]) == (__force __le32) 0)
199
200#define EFX_DWORD_IS_ZERO(dword) \
201 (((dword).u32[0]) == (__force __le32) 0)
202
203#define EFX_OWORD_IS_ALL_ONES64(oword) \
204 (((oword).u64[0] & (oword).u64[1]) == ~((__force __le64) 0))
205
206#define EFX_QWORD_IS_ALL_ONES64(qword) \
207 ((qword).u64[0] == ~((__force __le64) 0))
208
209#define EFX_OWORD_IS_ALL_ONES32(oword) \
210 (((oword).u32[0] & (oword).u32[1] & (oword).u32[2] & (oword).u32[3]) \
211 == ~((__force __le32) 0))
212
213#define EFX_QWORD_IS_ALL_ONES32(qword) \
214 (((qword).u32[0] & (qword).u32[1]) == ~((__force __le32) 0))
215
216#define EFX_DWORD_IS_ALL_ONES(dword) \
217 ((dword).u32[0] == ~((__force __le32) 0))
218
219#if BITS_PER_LONG == 64
220#define EFX_OWORD_FIELD EFX_OWORD_FIELD64
221#define EFX_QWORD_FIELD EFX_QWORD_FIELD64
222#define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO64
223#define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO64
224#define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES64
225#define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES64
226#else
227#define EFX_OWORD_FIELD EFX_OWORD_FIELD32
228#define EFX_QWORD_FIELD EFX_QWORD_FIELD32
229#define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO32
230#define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO32
231#define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES32
232#define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES32
233#endif
234
235/*
236 * Construct bit field portion
237 *
238 * Creates the portion of the bit field [low,high) that lies within
239 * the range [min,max).
240 */
241#define EFX_INSERT_NATIVE64(min, max, low, high, value) \
242 (((low > max) || (high < min)) ? 0 : \
243 ((low > min) ? \
244 (((u64) (value)) << (low - min)) : \
245 (((u64) (value)) >> (min - low))))
246
247#define EFX_INSERT_NATIVE32(min, max, low, high, value) \
248 (((low > max) || (high < min)) ? 0 : \
249 ((low > min) ? \
250 (((u32) (value)) << (low - min)) : \
251 (((u32) (value)) >> (min - low))))
252
253#define EFX_INSERT_NATIVE(min, max, low, high, value) \
254 ((((max - min) >= 32) || ((high - low) >= 32)) ? \
255 EFX_INSERT_NATIVE64(min, max, low, high, value) : \
256 EFX_INSERT_NATIVE32(min, max, low, high, value))
257
258/*
259 * Construct bit field portion
260 *
261 * Creates the portion of the named bit field that lies within the
262 * range [min,max).
263 */
264#define EFX_INSERT_FIELD_NATIVE(min, max, field, value) \
265 EFX_INSERT_NATIVE(min, max, EFX_LOW_BIT(field), \
266 EFX_HIGH_BIT(field), value)
267
268/*
269 * Construct bit field
270 *
271 * Creates the portion of the named bit fields that lie within the
272 * range [min,max).
273 */
274#define EFX_INSERT_FIELDS_NATIVE(min, max, \
275 field1, value1, \
276 field2, value2, \
277 field3, value3, \
278 field4, value4, \
279 field5, value5, \
280 field6, value6, \
281 field7, value7, \
282 field8, value8, \
283 field9, value9, \
284 field10, value10) \
285 (EFX_INSERT_FIELD_NATIVE((min), (max), field1, (value1)) | \
286 EFX_INSERT_FIELD_NATIVE((min), (max), field2, (value2)) | \
287 EFX_INSERT_FIELD_NATIVE((min), (max), field3, (value3)) | \
288 EFX_INSERT_FIELD_NATIVE((min), (max), field4, (value4)) | \
289 EFX_INSERT_FIELD_NATIVE((min), (max), field5, (value5)) | \
290 EFX_INSERT_FIELD_NATIVE((min), (max), field6, (value6)) | \
291 EFX_INSERT_FIELD_NATIVE((min), (max), field7, (value7)) | \
292 EFX_INSERT_FIELD_NATIVE((min), (max), field8, (value8)) | \
293 EFX_INSERT_FIELD_NATIVE((min), (max), field9, (value9)) | \
294 EFX_INSERT_FIELD_NATIVE((min), (max), field10, (value10)))
295
296#define EFX_INSERT_FIELDS64(...) \
297 cpu_to_le64(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__))
298
299#define EFX_INSERT_FIELDS32(...) \
300 cpu_to_le32(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__))
301
302#define EFX_POPULATE_OWORD64(oword, ...) do { \
303 (oword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \
304 (oword).u64[1] = EFX_INSERT_FIELDS64(64, 127, __VA_ARGS__); \
305 } while (0)
306
307#define EFX_POPULATE_QWORD64(qword, ...) do { \
308 (qword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \
309 } while (0)
310
311#define EFX_POPULATE_OWORD32(oword, ...) do { \
312 (oword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \
313 (oword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \
314 (oword).u32[2] = EFX_INSERT_FIELDS32(64, 95, __VA_ARGS__); \
315 (oword).u32[3] = EFX_INSERT_FIELDS32(96, 127, __VA_ARGS__); \
316 } while (0)
317
318#define EFX_POPULATE_QWORD32(qword, ...) do { \
319 (qword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \
320 (qword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \
321 } while (0)
322
323#define EFX_POPULATE_DWORD(dword, ...) do { \
324 (dword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \
325 } while (0)
326
327#if BITS_PER_LONG == 64
328#define EFX_POPULATE_OWORD EFX_POPULATE_OWORD64
329#define EFX_POPULATE_QWORD EFX_POPULATE_QWORD64
330#else
331#define EFX_POPULATE_OWORD EFX_POPULATE_OWORD32
332#define EFX_POPULATE_QWORD EFX_POPULATE_QWORD32
333#endif
334
335/* Populate an octword field with various numbers of arguments */
336#define EFX_POPULATE_OWORD_10 EFX_POPULATE_OWORD
337#define EFX_POPULATE_OWORD_9(oword, ...) \
338 EFX_POPULATE_OWORD_10(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
339#define EFX_POPULATE_OWORD_8(oword, ...) \
340 EFX_POPULATE_OWORD_9(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
341#define EFX_POPULATE_OWORD_7(oword, ...) \
342 EFX_POPULATE_OWORD_8(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
343#define EFX_POPULATE_OWORD_6(oword, ...) \
344 EFX_POPULATE_OWORD_7(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
345#define EFX_POPULATE_OWORD_5(oword, ...) \
346 EFX_POPULATE_OWORD_6(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
347#define EFX_POPULATE_OWORD_4(oword, ...) \
348 EFX_POPULATE_OWORD_5(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
349#define EFX_POPULATE_OWORD_3(oword, ...) \
350 EFX_POPULATE_OWORD_4(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
351#define EFX_POPULATE_OWORD_2(oword, ...) \
352 EFX_POPULATE_OWORD_3(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
353#define EFX_POPULATE_OWORD_1(oword, ...) \
354 EFX_POPULATE_OWORD_2(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
355#define EFX_ZERO_OWORD(oword) \
356 EFX_POPULATE_OWORD_1(oword, EFX_DUMMY_FIELD, 0)
357#define EFX_SET_OWORD(oword) \
358 EFX_POPULATE_OWORD_4(oword, \
359 EFX_DWORD_0, 0xffffffff, \
360 EFX_DWORD_1, 0xffffffff, \
361 EFX_DWORD_2, 0xffffffff, \
362 EFX_DWORD_3, 0xffffffff)
363
364/* Populate a quadword field with various numbers of arguments */
365#define EFX_POPULATE_QWORD_10 EFX_POPULATE_QWORD
366#define EFX_POPULATE_QWORD_9(qword, ...) \
367 EFX_POPULATE_QWORD_10(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
368#define EFX_POPULATE_QWORD_8(qword, ...) \
369 EFX_POPULATE_QWORD_9(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
370#define EFX_POPULATE_QWORD_7(qword, ...) \
371 EFX_POPULATE_QWORD_8(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
372#define EFX_POPULATE_QWORD_6(qword, ...) \
373 EFX_POPULATE_QWORD_7(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
374#define EFX_POPULATE_QWORD_5(qword, ...) \
375 EFX_POPULATE_QWORD_6(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
376#define EFX_POPULATE_QWORD_4(qword, ...) \
377 EFX_POPULATE_QWORD_5(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
378#define EFX_POPULATE_QWORD_3(qword, ...) \
379 EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
380#define EFX_POPULATE_QWORD_2(qword, ...) \
381 EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
382#define EFX_POPULATE_QWORD_1(qword, ...) \
383 EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
384#define EFX_ZERO_QWORD(qword) \
385 EFX_POPULATE_QWORD_1(qword, EFX_DUMMY_FIELD, 0)
386#define EFX_SET_QWORD(qword) \
387 EFX_POPULATE_QWORD_2(qword, \
388 EFX_DWORD_0, 0xffffffff, \
389 EFX_DWORD_1, 0xffffffff)
390
391/* Populate a dword field with various numbers of arguments */
392#define EFX_POPULATE_DWORD_10 EFX_POPULATE_DWORD
393#define EFX_POPULATE_DWORD_9(dword, ...) \
394 EFX_POPULATE_DWORD_10(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
395#define EFX_POPULATE_DWORD_8(dword, ...) \
396 EFX_POPULATE_DWORD_9(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
397#define EFX_POPULATE_DWORD_7(dword, ...) \
398 EFX_POPULATE_DWORD_8(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
399#define EFX_POPULATE_DWORD_6(dword, ...) \
400 EFX_POPULATE_DWORD_7(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
401#define EFX_POPULATE_DWORD_5(dword, ...) \
402 EFX_POPULATE_DWORD_6(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
403#define EFX_POPULATE_DWORD_4(dword, ...) \
404 EFX_POPULATE_DWORD_5(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
405#define EFX_POPULATE_DWORD_3(dword, ...) \
406 EFX_POPULATE_DWORD_4(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
407#define EFX_POPULATE_DWORD_2(dword, ...) \
408 EFX_POPULATE_DWORD_3(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
409#define EFX_POPULATE_DWORD_1(dword, ...) \
410 EFX_POPULATE_DWORD_2(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
411#define EFX_ZERO_DWORD(dword) \
412 EFX_POPULATE_DWORD_1(dword, EFX_DUMMY_FIELD, 0)
413#define EFX_SET_DWORD(dword) \
414 EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xffffffff)
415
416/*
417 * Modify a named field within an already-populated structure. Used
418 * for read-modify-write operations.
419 *
420 */
421#define EFX_INVERT_OWORD(oword) do { \
422 (oword).u64[0] = ~((oword).u64[0]); \
423 (oword).u64[1] = ~((oword).u64[1]); \
424 } while (0)
425
426#define EFX_AND_OWORD(oword, from, mask) \
427 do { \
428 (oword).u64[0] = (from).u64[0] & (mask).u64[0]; \
429 (oword).u64[1] = (from).u64[1] & (mask).u64[1]; \
430 } while (0)
431
432#define EFX_OR_OWORD(oword, from, mask) \
433 do { \
434 (oword).u64[0] = (from).u64[0] | (mask).u64[0]; \
435 (oword).u64[1] = (from).u64[1] | (mask).u64[1]; \
436 } while (0)
437
438#define EFX_INSERT64(min, max, low, high, value) \
439 cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
440
441#define EFX_INSERT32(min, max, low, high, value) \
442 cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value))
443
444#define EFX_INPLACE_MASK64(min, max, low, high) \
445 EFX_INSERT64(min, max, low, high, EFX_MASK64(high + 1 - low))
446
447#define EFX_INPLACE_MASK32(min, max, low, high) \
448 EFX_INSERT32(min, max, low, high, EFX_MASK32(high + 1 - low))
449
450#define EFX_SET_OWORD64(oword, low, high, value) do { \
451 (oword).u64[0] = (((oword).u64[0] \
452 & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
453 | EFX_INSERT64(0, 63, low, high, value)); \
454 (oword).u64[1] = (((oword).u64[1] \
455 & ~EFX_INPLACE_MASK64(64, 127, low, high)) \
456 | EFX_INSERT64(64, 127, low, high, value)); \
457 } while (0)
458
459#define EFX_SET_QWORD64(qword, low, high, value) do { \
460 (qword).u64[0] = (((qword).u64[0] \
461 & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
462 | EFX_INSERT64(0, 63, low, high, value)); \
463 } while (0)
464
465#define EFX_SET_OWORD32(oword, low, high, value) do { \
466 (oword).u32[0] = (((oword).u32[0] \
467 & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
468 | EFX_INSERT32(0, 31, low, high, value)); \
469 (oword).u32[1] = (((oword).u32[1] \
470 & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
471 | EFX_INSERT32(32, 63, low, high, value)); \
472 (oword).u32[2] = (((oword).u32[2] \
473 & ~EFX_INPLACE_MASK32(64, 95, low, high)) \
474 | EFX_INSERT32(64, 95, low, high, value)); \
475 (oword).u32[3] = (((oword).u32[3] \
476 & ~EFX_INPLACE_MASK32(96, 127, low, high)) \
477 | EFX_INSERT32(96, 127, low, high, value)); \
478 } while (0)
479
480#define EFX_SET_QWORD32(qword, low, high, value) do { \
481 (qword).u32[0] = (((qword).u32[0] \
482 & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
483 | EFX_INSERT32(0, 31, low, high, value)); \
484 (qword).u32[1] = (((qword).u32[1] \
485 & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
486 | EFX_INSERT32(32, 63, low, high, value)); \
487 } while (0)
488
489#define EFX_SET_DWORD32(dword, low, high, value) do { \
490 (dword).u32[0] = (((dword).u32[0] \
491 & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
492 | EFX_INSERT32(0, 31, low, high, value)); \
493 } while (0)
494
495#define EFX_SET_OWORD_FIELD64(oword, field, value) \
496 EFX_SET_OWORD64(oword, EFX_LOW_BIT(field), \
497 EFX_HIGH_BIT(field), value)
498
499#define EFX_SET_QWORD_FIELD64(qword, field, value) \
500 EFX_SET_QWORD64(qword, EFX_LOW_BIT(field), \
501 EFX_HIGH_BIT(field), value)
502
503#define EFX_SET_OWORD_FIELD32(oword, field, value) \
504 EFX_SET_OWORD32(oword, EFX_LOW_BIT(field), \
505 EFX_HIGH_BIT(field), value)
506
507#define EFX_SET_QWORD_FIELD32(qword, field, value) \
508 EFX_SET_QWORD32(qword, EFX_LOW_BIT(field), \
509 EFX_HIGH_BIT(field), value)
510
511#define EFX_SET_DWORD_FIELD(dword, field, value) \
512 EFX_SET_DWORD32(dword, EFX_LOW_BIT(field), \
513 EFX_HIGH_BIT(field), value)
514
515
516
517#if BITS_PER_LONG == 64
518#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD64
519#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD64
520#else
521#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD32
522#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD32
523#endif
524
525/* Used to avoid compiler warnings about shift range exceeding width
526 * of the data types when dma_addr_t is only 32 bits wide.
527 */
528#define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t))
529#define EFX_DMA_TYPE_WIDTH(width) \
530 (((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)
531
532
533/* Static initialiser */
534#define EFX_OWORD32(a, b, c, d) \
535 { .u32 = { cpu_to_le32(a), cpu_to_le32(b), \
536 cpu_to_le32(c), cpu_to_le32(d) } }
537
538#endif /* EFX_BITFIELD_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-15 08:07:06 -0400