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path: root/drivers/net/sfc/bitfield.h
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Diffstat (limited to 'drivers/net/sfc/bitfield.h')
-rw-r--r--drivers/net/sfc/bitfield.h178
1 files changed, 111 insertions, 67 deletions
diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
index 2c79d27404e..d95c2182801 100644
--- a/drivers/net/sfc/bitfield.h
+++ b/drivers/net/sfc/bitfield.h
@@ -52,9 +52,9 @@
*
* The maximum width mask that can be generated is 64 bits.
*/
-#define EFX_MASK64(field) \
- (EFX_WIDTH(field) == 64 ? ~((u64) 0) : \
- (((((u64) 1) << EFX_WIDTH(field))) - 1))
+#define EFX_MASK64(width) \
+ ((width) == 64 ? ~((u64) 0) : \
+ (((((u64) 1) << (width))) - 1))
/* Mask equal in width to the specified field.
*
@@ -63,9 +63,9 @@
* The maximum width mask that can be generated is 32 bits. Use
* EFX_MASK64 for higher width fields.
*/
-#define EFX_MASK32(field) \
- (EFX_WIDTH(field) == 32 ? ~((u32) 0) : \
- (((((u32) 1) << EFX_WIDTH(field))) - 1))
+#define EFX_MASK32(width) \
+ ((width) == 32 ? ~((u32) 0) : \
+ (((((u32) 1) << (width))) - 1))
/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */
typedef union efx_dword {
@@ -138,44 +138,49 @@ typedef union efx_oword {
EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
#define EFX_EXTRACT_OWORD64(oword, low, high) \
- (EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
- EFX_EXTRACT64((oword).u64[1], 64, 127, low, high))
+ ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
+ EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \
+ EFX_MASK64(high + 1 - low))
#define EFX_EXTRACT_QWORD64(qword, low, high) \
- EFX_EXTRACT64((qword).u64[0], 0, 63, low, high)
+ (EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) & \
+ EFX_MASK64(high + 1 - low))
#define EFX_EXTRACT_OWORD32(oword, low, high) \
- (EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
- EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
- EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \
- EFX_EXTRACT32((oword).u32[3], 96, 127, low, high))
+ ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
+ EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
+ EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \
+ EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \
+ EFX_MASK32(high + 1 - low))
#define EFX_EXTRACT_QWORD32(qword, low, high) \
- (EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \
- EFX_EXTRACT32((qword).u32[1], 32, 63, low, high))
+ ((EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \
+ EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \
+ EFX_MASK32(high + 1 - low))
-#define EFX_EXTRACT_DWORD(dword, low, high) \
- EFX_EXTRACT32((dword).u32[0], 0, 31, low, high)
+#define EFX_EXTRACT_DWORD(dword, low, high) \
+ (EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) & \
+ EFX_MASK32(high + 1 - low))
-#define EFX_OWORD_FIELD64(oword, field) \
- (EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK64(field))
+#define EFX_OWORD_FIELD64(oword, field) \
+ EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_QWORD_FIELD64(qword, field) \
- (EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK64(field))
+#define EFX_QWORD_FIELD64(qword, field) \
+ EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_OWORD_FIELD32(oword, field) \
- (EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK32(field))
+#define EFX_OWORD_FIELD32(oword, field) \
+ EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_QWORD_FIELD32(qword, field) \
- (EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK32(field))
+#define EFX_QWORD_FIELD32(qword, field) \
+ EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_DWORD_FIELD(dword, field) \
- (EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK32(field))
+#define EFX_DWORD_FIELD(dword, field) \
+ EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
#define EFX_OWORD_IS_ZERO64(oword) \
(((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0)
@@ -411,69 +416,102 @@ typedef union efx_oword {
* for read-modify-write operations.
*
*/
-
#define EFX_INVERT_OWORD(oword) do { \
(oword).u64[0] = ~((oword).u64[0]); \
(oword).u64[1] = ~((oword).u64[1]); \
} while (0)
-#define EFX_INSERT_FIELD64(...) \
- cpu_to_le64(EFX_INSERT_FIELD_NATIVE(__VA_ARGS__))
+#define EFX_AND_OWORD(oword, from, mask) \
+ do { \
+ (oword).u64[0] = (from).u64[0] & (mask).u64[0]; \
+ (oword).u64[1] = (from).u64[1] & (mask).u64[1]; \
+ } while (0)
+
+#define EFX_OR_OWORD(oword, from, mask) \
+ do { \
+ (oword).u64[0] = (from).u64[0] | (mask).u64[0]; \
+ (oword).u64[1] = (from).u64[1] | (mask).u64[1]; \
+ } while (0)
-#define EFX_INSERT_FIELD32(...) \
- cpu_to_le32(EFX_INSERT_FIELD_NATIVE(__VA_ARGS__))
+#define EFX_INSERT64(min, max, low, high, value) \
+ cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
-#define EFX_INPLACE_MASK64(min, max, field) \
- EFX_INSERT_FIELD64(min, max, field, EFX_MASK64(field))
+#define EFX_INSERT32(min, max, low, high, value) \
+ cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value))
-#define EFX_INPLACE_MASK32(min, max, field) \
- EFX_INSERT_FIELD32(min, max, field, EFX_MASK32(field))
+#define EFX_INPLACE_MASK64(min, max, low, high) \
+ EFX_INSERT64(min, max, low, high, EFX_MASK64(high + 1 - low))
-#define EFX_SET_OWORD_FIELD64(oword, field, value) do { \
+#define EFX_INPLACE_MASK32(min, max, low, high) \
+ EFX_INSERT32(min, max, low, high, EFX_MASK32(high + 1 - low))
+
+#define EFX_SET_OWORD64(oword, low, high, value) do { \
(oword).u64[0] = (((oword).u64[0] \
- & ~EFX_INPLACE_MASK64(0, 63, field)) \
- | EFX_INSERT_FIELD64(0, 63, field, value)); \
+ & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
+ | EFX_INSERT64(0, 63, low, high, value)); \
(oword).u64[1] = (((oword).u64[1] \
- & ~EFX_INPLACE_MASK64(64, 127, field)) \
- | EFX_INSERT_FIELD64(64, 127, field, value)); \
+ & ~EFX_INPLACE_MASK64(64, 127, low, high)) \
+ | EFX_INSERT64(64, 127, low, high, value)); \
} while (0)
-#define EFX_SET_QWORD_FIELD64(qword, field, value) do { \
+#define EFX_SET_QWORD64(qword, low, high, value) do { \
(qword).u64[0] = (((qword).u64[0] \
- & ~EFX_INPLACE_MASK64(0, 63, field)) \
- | EFX_INSERT_FIELD64(0, 63, field, value)); \
+ & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
+ | EFX_INSERT64(0, 63, low, high, value)); \
} while (0)
-#define EFX_SET_OWORD_FIELD32(oword, field, value) do { \
+#define EFX_SET_OWORD32(oword, low, high, value) do { \
(oword).u32[0] = (((oword).u32[0] \
- & ~EFX_INPLACE_MASK32(0, 31, field)) \
- | EFX_INSERT_FIELD32(0, 31, field, value)); \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
(oword).u32[1] = (((oword).u32[1] \
- & ~EFX_INPLACE_MASK32(32, 63, field)) \
- | EFX_INSERT_FIELD32(32, 63, field, value)); \
+ & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
+ | EFX_INSERT32(32, 63, low, high, value)); \
(oword).u32[2] = (((oword).u32[2] \
- & ~EFX_INPLACE_MASK32(64, 95, field)) \
- | EFX_INSERT_FIELD32(64, 95, field, value)); \
+ & ~EFX_INPLACE_MASK32(64, 95, low, high)) \
+ | EFX_INSERT32(64, 95, low, high, value)); \
(oword).u32[3] = (((oword).u32[3] \
- & ~EFX_INPLACE_MASK32(96, 127, field)) \
- | EFX_INSERT_FIELD32(96, 127, field, value)); \
+ & ~EFX_INPLACE_MASK32(96, 127, low, high)) \
+ | EFX_INSERT32(96, 127, low, high, value)); \
} while (0)
-#define EFX_SET_QWORD_FIELD32(qword, field, value) do { \
+#define EFX_SET_QWORD32(qword, low, high, value) do { \
(qword).u32[0] = (((qword).u32[0] \
- & ~EFX_INPLACE_MASK32(0, 31, field)) \
- | EFX_INSERT_FIELD32(0, 31, field, value)); \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
(qword).u32[1] = (((qword).u32[1] \
- & ~EFX_INPLACE_MASK32(32, 63, field)) \
- | EFX_INSERT_FIELD32(32, 63, field, value)); \
+ & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
+ | EFX_INSERT32(32, 63, low, high, value)); \
} while (0)
-#define EFX_SET_DWORD_FIELD(dword, field, value) do { \
- (dword).u32[0] = (((dword).u32[0] \
- & ~EFX_INPLACE_MASK32(0, 31, field)) \
- | EFX_INSERT_FIELD32(0, 31, field, value)); \
+#define EFX_SET_DWORD32(dword, low, high, value) do { \
+ (dword).u32[0] = (((dword).u32[0] \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
} while (0)
+#define EFX_SET_OWORD_FIELD64(oword, field, value) \
+ EFX_SET_OWORD64(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_QWORD_FIELD64(qword, field, value) \
+ EFX_SET_QWORD64(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_OWORD_FIELD32(oword, field, value) \
+ EFX_SET_OWORD32(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_QWORD_FIELD32(qword, field, value) \
+ EFX_SET_QWORD32(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_DWORD_FIELD(dword, field, value) \
+ EFX_SET_DWORD32(dword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+
+
#if BITS_PER_LONG == 64
#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD64
#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD64
@@ -502,4 +540,10 @@ typedef union efx_oword {
#define EFX_DMA_TYPE_WIDTH(width) \
(((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)
+
+/* Static initialiser */
+#define EFX_OWORD32(a, b, c, d) \
+ { .u32 = { __constant_cpu_to_le32(a), __constant_cpu_to_le32(b), \
+ __constant_cpu_to_le32(c), __constant_cpu_to_le32(d) } }
+
#endif /* EFX_BITFIELD_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 05:47:41 +0000