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-rw-r--r--src/vlib/node_funcs.h46
-rw-r--r--src/vppinfra/bitops.h73
-rw-r--r--src/vppinfra/clib.h18
-rw-r--r--src/vppinfra/format.h4
-rw-r--r--src/vppinfra/std-formats.c15
5 files changed, 114 insertions, 42 deletions
diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h
index 9e0825b65cb..9f10d16c27f 100644
--- a/src/vlib/node_funcs.h
+++ b/src/vlib/node_funcs.h
@@ -1406,17 +1406,26 @@ vlib_frame_bitmap_init (uword *bmp, u32 n_first_bits_set)
static_always_inline void
vlib_frame_bitmap_set_bit_at_index (uword *bmp, uword bit_index)
{
- bmp += bit_index / uword_bits;
- bit_index %= uword_bits;
- bmp[0] |= 1 << bit_index;
+ uword_bitmap_set_bits_at_index (bmp, bit_index, 1);
}
static_always_inline void
_vlib_frame_bitmap_clear_bit_at_index (uword *bmp, uword bit_index)
{
- bmp += bit_index / uword_bits;
- bit_index %= uword_bits;
- bmp[0] &= ~((uword) 1 << bit_index);
+ uword_bitmap_clear_bits_at_index (bmp, bit_index, 1);
+}
+
+static_always_inline void
+vlib_frame_bitmap_set_bits_at_index (uword *bmp, uword bit_index, uword n_bits)
+{
+ uword_bitmap_set_bits_at_index (bmp, bit_index, n_bits);
+}
+
+static_always_inline void
+vlib_frame_bitmap_clear_bits_at_index (uword *bmp, uword bit_index,
+ uword n_bits)
+{
+ uword_bitmap_clear_bits_at_index (bmp, bit_index, n_bits);
}
static_always_inline void
@@ -1451,35 +1460,24 @@ vlib_frame_bitmap_and (uword *bmp, uword *bmp2)
bmp++[0] &= bmp2++[0];
}
-static_always_inline u32
+static_always_inline uword
vlib_frame_bitmap_count_set_bits (uword *bmp)
{
- u32 n_left = VLIB_FRAME_BITMAP_N_UWORDS;
- u32 count = 0;
- while (n_left--)
- count += count_set_bits (bmp++[0]);
- return count;
+ return uword_bitmap_count_set_bits (bmp, VLIB_FRAME_BITMAP_N_UWORDS);
}
static_always_inline uword
vlib_frame_bitmap_is_bit_set (uword *bmp, uword bit_index)
{
- bmp += bit_index / uword_bits;
- bit_index %= uword_bits;
- return (bmp[0] >> bit_index) & 1;
+ return uword_bitmap_is_bit_set (bmp, bit_index);
}
-static_always_inline int
+static_always_inline uword
vlib_frame_bitmap_find_first_set (uword *bmp)
{
- uword *b = bmp;
- while (b[0] == 0)
- {
- ASSERT (b - bmp < VLIB_FRAME_BITMAP_N_UWORDS);
- b++;
- }
-
- return (b - bmp) * uword_bits + get_lowest_set_bit_index (b[0]);
+ uword rv = uword_bitmap_find_first_set (bmp);
+ ASSERT (rv < VLIB_FRAME_BITMAP_N_UWORDS * uword_bits);
+ return rv;
}
#define foreach_vlib_frame_bitmap_set_bit_index(i, v) \
diff --git a/src/vppinfra/bitops.h b/src/vppinfra/bitops.h
index 7a4be3ce4c3..d19046e1d24 100644
--- a/src/vppinfra/bitops.h
+++ b/src/vppinfra/bitops.h
@@ -200,6 +200,79 @@ next_with_same_number_of_set_bits (uword x)
_tmp; \
i = get_lowest_set_bit_index (_tmp = clear_lowest_set_bit (_tmp)))
+static_always_inline uword
+uword_bitmap_count_set_bits (uword *bmp, uword n_uwords)
+{
+ uword count = 0;
+ while (n_uwords--)
+ count += count_set_bits (bmp++[0]);
+ return count;
+}
+
+static_always_inline uword
+uword_bitmap_is_bit_set (uword *bmp, uword bit_index)
+{
+ bmp += bit_index / uword_bits;
+ bit_index %= uword_bits;
+ return (bmp[0] >> bit_index) & 1;
+}
+
+static_always_inline void
+uword_bitmap_set_bits_at_index (uword *bmp, uword bit_index, uword n_bits)
+{
+ bmp += bit_index / uword_bits;
+ bit_index %= uword_bits;
+ uword max_bits = uword_bits - bit_index;
+
+ if (n_bits < max_bits)
+ {
+ bmp[0] |= pow2_mask (n_bits) << bit_index;
+ return;
+ }
+
+ bmp++[0] |= pow2_mask (max_bits) << bit_index;
+ n_bits -= max_bits;
+
+ for (; n_bits >= uword_bits; bmp++, n_bits -= uword_bits)
+ bmp[0] = ~0ULL;
+
+ if (n_bits)
+ bmp[0] |= pow2_mask (n_bits);
+}
+
+static_always_inline void
+uword_bitmap_clear_bits_at_index (uword *bmp, uword bit_index, uword n_bits)
+{
+ bmp += bit_index / uword_bits;
+ bit_index %= uword_bits;
+ uword max_bits = uword_bits - bit_index;
+
+ if (n_bits < max_bits)
+ {
+ bmp[0] &= ~(pow2_mask (n_bits) << bit_index);
+ return;
+ }
+
+ bmp++[0] &= ~(pow2_mask (max_bits) << bit_index);
+ n_bits -= max_bits;
+
+ for (; n_bits >= uword_bits; bmp++, n_bits -= uword_bits)
+ bmp[0] = 0ULL;
+
+ if (n_bits)
+ bmp[0] &= ~pow2_mask (n_bits);
+}
+
+static_always_inline int
+uword_bitmap_find_first_set (uword *bmp)
+{
+ uword *b = bmp;
+ while (b[0] == 0)
+ b++;
+
+ return (b - bmp) * uword_bits + get_lowest_set_bit_index (b[0]);
+}
+
#else
#warning "already included"
#endif /* included_clib_bitops_h */
diff --git a/src/vppinfra/clib.h b/src/vppinfra/clib.h
index 7a8029a30bd..b8257bf1164 100644
--- a/src/vppinfra/clib.h
+++ b/src/vppinfra/clib.h
@@ -197,6 +197,15 @@
decl __attribute ((destructor)); \
decl
+always_inline uword
+pow2_mask (uword x)
+{
+#ifdef __BMI2__
+ return _bzhi_u64 (-1ULL, x);
+#endif
+ return ((uword) 1 << x) - (uword) 1;
+}
+
#include <vppinfra/bitops.h>
always_inline uword
@@ -237,15 +246,6 @@ min_log2_u64 (u64 x)
}
always_inline uword
-pow2_mask (uword x)
-{
-#ifdef __BMI2__
- return _bzhi_u64 (-1ULL, x);
-#endif
- return ((uword) 1 << x) - (uword) 1;
-}
-
-always_inline uword
max_pow2 (uword x)
{
word y = (word) 1 << min_log2 (x);
diff --git a/src/vppinfra/format.h b/src/vppinfra/format.h
index 2cd636d0be8..a359328005f 100644
--- a/src/vppinfra/format.h
+++ b/src/vppinfra/format.h
@@ -322,8 +322,8 @@ u8 *format_c_identifier (u8 * s, va_list * va);
/* Format hexdump with both hex and printable chars - compatible with text2pcap */
u8 *format_hexdump (u8 * s, va_list * va);
-/* Format bitmap of array of u64 numbers */
-u8 *format_u64_bitmap (u8 *s, va_list *va);
+/* Format bitmap of array of uword numbers */
+u8 *format_uword_bitmap (u8 *s, va_list *va);
/* Unix specific formats. */
#ifdef CLIB_UNIX
diff --git a/src/vppinfra/std-formats.c b/src/vppinfra/std-formats.c
index bfe9844c832..4605ed5d75c 100644
--- a/src/vppinfra/std-formats.c
+++ b/src/vppinfra/std-formats.c
@@ -456,29 +456,30 @@ format_hexdump (u8 * s, va_list * args)
}
__clib_export u8 *
-format_u64_bitmap (u8 *s, va_list *args)
+format_uword_bitmap (u8 *s, va_list *args)
{
- u64 *bitmap = va_arg (*args, u64 *);
+ uword *bitmap = va_arg (*args, uword *);
int n_uword = va_arg (*args, int);
- u32 indent = format_get_indent (s);
+ uword indent = format_get_indent (s);
s = format (s, "%6s", "");
- for (int i = 60; i >= 0; i -= 4)
+ for (int i = uword_bits - 4; i >= 0; i -= 4)
s = format (s, "%5d", i);
vec_add1 (s, '\n');
for (int j = n_uword - 1; j >= 0; j--)
{
- s = format (s, "%U0x%04x ", format_white_space, indent, j * 8);
- for (int i = 63; i >= 0; i--)
+ s = format (s, "%U0x%04x ", format_white_space, indent,
+ j * uword_bits / 8);
+ for (int i = uword_bits - 1; i >= 0; i--)
{
vec_add1 (s, (1ULL << i) & bitmap[j] ? '1' : '.');
if (i % 4 == 0)
vec_add1 (s, ' ');
}
- s = format (s, "0x%016lx", bitmap[j]);
+ s = format (s, uword_bits == 64 ? "0x%016lx" : "0x%08lx", bitmap[j]);
if (j)
vec_add1 (s, '\n');
}