ethernet/sfc/bitfield.h

112  * which contains bits [min,max).
125 #define EFX_EXTRACT_NATIVE(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)))
133  * element which contains bits [min,max)
135 #define EFX_EXTRACT64(element, min, max, low, high)			\
136 	EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)
140  * element which contains bits [min,max)
142 #define EFX_EXTRACT32(element, min, max, low, high)			\
143 	EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
242  * the range [min,max).
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))))
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))))
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))
265  * range [min,max).
267 #define EFX_INSERT_FIELD_NATIVE(min, max, field, value)		\
268 	EFX_INSERT_NATIVE(min, max, EFX_LOW_BIT(field),		\
275  * range [min,max).
277 #define EFX_INSERT_FIELDS_NATIVE(min, max,				\
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)))
516 #define EFX_INSERT64(min, max, low, high, value)			\
517 	cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
519 #define EFX_INSERT32(min, max, low, high, value)			\
520 	cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value))
522 #define EFX_INPLACE_MASK64(min, max, low, high)				\
523 	EFX_INSERT64(min, max, low, high, EFX_MASK64((high) + 1 - (low)))
525 #define EFX_INPLACE_MASK32(min, max, low, high)				\
526 	EFX_INSERT32(min, max, low, high, EFX_MASK32((high) + 1 - (low)))