* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+/**
+ * @cond (!DPDK)
+ * @file
+ *
+ * Allocate/free network buffers.
+ */
+
+#if DPDK > 0
+#include <rte_config.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_random.h>
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_version.h>
+#endif
+
#include <vlib/vlib.h>
-uword vlib_buffer_length_in_chain_slow_path (vlib_main_t * vm, vlib_buffer_t * b_first)
+#if DPDK > 0
+#pragma weak rte_mem_virt2phy
+#pragma weak rte_eal_has_hugepages
+#pragma weak rte_socket_id
+#pragma weak rte_pktmbuf_pool_create
+#endif
+
+uword
+vlib_buffer_length_in_chain_slow_path (vlib_main_t * vm,
+ vlib_buffer_t * b_first)
{
- vlib_buffer_t * b = b_first;
+ vlib_buffer_t *b = b_first;
uword l_first = b_first->current_length;
uword l = 0;
while (b->flags & VLIB_BUFFER_NEXT_PRESENT)
return l + l_first;
}
-u8 * format_vlib_buffer (u8 * s, va_list * args)
+u8 *
+format_vlib_buffer (u8 * s, va_list * args)
{
- vlib_buffer_t * b = va_arg (*args, vlib_buffer_t *);
-
+ vlib_buffer_t *b = va_arg (*args, vlib_buffer_t *);
+#if DPDK > 0
+ uword indent = format_get_indent (s);
+
s = format (s, "current data %d, length %d, free-list %d",
- b->current_data, b->current_length,
- b->free_list_index);
+ b->current_data, b->current_length, b->free_list_index);
+
+ if (b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID)
+ s = format (s, ", totlen-nifb %d",
+ b->total_length_not_including_first_buffer);
+
+ if (b->flags & VLIB_BUFFER_IS_TRACED)
+ s = format (s, ", trace 0x%x", b->trace_index);
+
+ while (b->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ vlib_main_t *vm = vlib_get_main ();
+ u32 next_buffer = b->next_buffer;
+ b = vlib_get_buffer (vm, next_buffer);
+
+ s = format (s, "\n%Unext-buffer 0x%x, segment length %d",
+ format_white_space, indent, next_buffer, b->current_length);
+ }
+
+#else
+
+ s = format (s, "current data %d, length %d, free-list %d",
+ b->current_data, b->current_length, b->free_list_index);
if (b->flags & VLIB_BUFFER_IS_TRACED)
s = format (s, ", trace 0x%x", b->trace_index);
if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
s = format (s, ", next-buffer 0x%x", b->next_buffer);
+#endif
return s;
}
-u8 * format_vlib_buffer_and_data (u8 * s, va_list * args)
+u8 *
+format_vlib_buffer_and_data (u8 * s, va_list * args)
{
- vlib_buffer_t * b = va_arg (*args, vlib_buffer_t *);
-
+ vlib_buffer_t *b = va_arg (*args, vlib_buffer_t *);
+
s = format (s, "%U, %U",
format_vlib_buffer, b,
format_hex_bytes, vlib_buffer_get_current (b), 64);
return s;
}
-static u8 * format_vlib_buffer_known_state (u8 * s, va_list * args)
+#if DPDK == 0
+static u8 *
+format_vlib_buffer_known_state (u8 * s, va_list * args)
{
vlib_buffer_known_state_t state = va_arg (*args, vlib_buffer_known_state_t);
- char * t;
+ char *t;
switch (state)
{
return format (s, "%s", t);
}
+#endif
-u8 * format_vlib_buffer_contents (u8 * s, va_list * va)
+u8 *
+format_vlib_buffer_contents (u8 * s, va_list * va)
{
- vlib_main_t * vm = va_arg (*va, vlib_main_t *);
- vlib_buffer_t * b = va_arg (*va, vlib_buffer_t *);
-
+ vlib_main_t *vm = va_arg (*va, vlib_main_t *);
+ vlib_buffer_t *b = va_arg (*va, vlib_buffer_t *);
+
while (1)
{
- vec_add (s, vlib_buffer_get_current (b),
- b->current_length);
- if (! (b->flags & VLIB_BUFFER_NEXT_PRESENT))
+ vec_add (s, vlib_buffer_get_current (b), b->current_length);
+ if (!(b->flags & VLIB_BUFFER_NEXT_PRESENT))
break;
b = vlib_get_buffer (vm, b->next_buffer);
}
return s;
}
+#if DPDK == 0
static u8 *
vlib_validate_buffer_helper (vlib_main_t * vm,
u32 bi,
- uword follow_buffer_next,
- uword ** unique_hash)
-
+ uword follow_buffer_next, uword ** unique_hash)
{
- vlib_buffer_t * b = vlib_get_buffer (vm, bi);
- vlib_buffer_main_t * bm = vm->buffer_main;
- vlib_buffer_free_list_t * fl;
+ vlib_buffer_t *b = vlib_get_buffer (vm, bi);
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *fl;
- if (pool_is_free_index (bm->buffer_free_list_pool,
- b->free_list_index))
+ if (pool_is_free_index (bm->buffer_free_list_pool, b->free_list_index))
return format (0, "unknown free list 0x%x", b->free_list_index);
- fl = pool_elt_at_index (bm->buffer_free_list_pool,
- b->free_list_index);
+ fl = pool_elt_at_index (bm->buffer_free_list_pool, b->free_list_index);
- if ((signed) b->current_data < (signed) - VLIB_BUFFER_PRE_DATA_SIZE)
+ if ((signed) b->current_data < (signed) -VLIB_BUFFER_PRE_DATA_SIZE)
return format (0, "current data %d before pre-data", b->current_data);
#if DPDK == 0
if (b->current_data + b->current_length > fl->n_data_bytes)
return format (0, "%d-%d beyond end of buffer %d",
- b->current_data, b->current_length,
- fl->n_data_bytes);
+ b->current_data, b->current_length, fl->n_data_bytes);
#endif
- if (follow_buffer_next
- && (b->flags & VLIB_BUFFER_NEXT_PRESENT))
+ if (follow_buffer_next && (b->flags & VLIB_BUFFER_NEXT_PRESENT))
{
vlib_buffer_known_state_t k;
- u8 * msg, * result;
+ u8 *msg, *result;
k = vlib_buffer_is_known (vm, b->next_buffer);
if (k != VLIB_BUFFER_KNOWN_ALLOCATED)
return format (0, "next 0x%x: %U",
- b->next_buffer,
- format_vlib_buffer_known_state, k);
+ b->next_buffer, format_vlib_buffer_known_state, k);
if (unique_hash)
{
u8 *
vlib_validate_buffer (vlib_main_t * vm, u32 bi, uword follow_buffer_next)
-{ return vlib_validate_buffer_helper (vm, bi, follow_buffer_next, /* unique_hash */ 0); }
+{
+ return vlib_validate_buffer_helper (vm, bi, follow_buffer_next,
+ /* unique_hash */ 0);
+}
u8 *
vlib_validate_buffers (vlib_main_t * vm,
vlib_buffer_known_state_t known_state,
uword follow_buffer_next)
{
- uword i, * hash;
- u32 bi, * b = buffers;
+ uword i, *hash;
+ u32 bi, *b = buffers;
vlib_buffer_known_state_t k;
- u8 * msg = 0, * result = 0;
+ u8 *msg = 0, *result = 0;
hash = hash_create (0, 0);
for (i = 0; i < n_buffers; i++)
hash_set1 (hash, bi);
}
- done:
+done:
if (msg)
{
result = format (0, "0x%x: %v", bi, msg);
hash_free (hash);
return result;
}
+#endif
vlib_main_t **vlib_mains;
+#if DPDK == 0
/* When dubugging validate that given buffers are either known allocated
or known free. */
static void
uword n_buffers,
vlib_buffer_known_state_t expected_state)
{
- u32 * b;
+ u32 *b;
uword i, bi, is_free;
if (CLIB_DEBUG == 0)
return;
- ASSERT(os_get_cpu_number() == 0);
+ ASSERT (os_get_cpu_number () == 0);
/* smp disaster check */
if (vlib_mains)
- ASSERT(vm == vlib_mains[0]);
+ ASSERT (vm == vlib_mains[0]);
is_free = expected_state == VLIB_BUFFER_KNOWN_ALLOCATED;
b = buffers;
for (i = 0; i < n_buffers; i++)
{
vlib_buffer_known_state_t known;
-
+
bi = b[0];
b += 1;
known = vlib_buffer_is_known (vm, bi);
vlib_panic_with_msg
(vm, "%s %U buffer 0x%x",
is_free ? "freeing" : "allocating",
- format_vlib_buffer_known_state, known,
- bi);
+ format_vlib_buffer_known_state, known, bi);
}
vlib_buffer_set_known_state
is_free ? VLIB_BUFFER_KNOWN_FREE : VLIB_BUFFER_KNOWN_ALLOCATED);
}
}
-
-/* Aligned copy routine. */
-void
-vlib_aligned_memcpy (void * _dst, void * _src, int n_bytes)
-{
- vlib_copy_unit_t * dst = _dst;
- vlib_copy_unit_t * src = _src;
-
- /* Arguments must be naturally aligned. */
- ASSERT (pointer_to_uword (dst) % sizeof (dst[0]) == 0);
- ASSERT (pointer_to_uword (src) % sizeof (src[0]) == 0);
- ASSERT (n_bytes % sizeof (dst[0]) == 0);
-
- if (4 * sizeof (dst[0]) == CLIB_CACHE_LINE_BYTES)
- {
- CLIB_PREFETCH (dst + 0, 4 * sizeof (dst[0]), WRITE);
- CLIB_PREFETCH (src + 0, 4 * sizeof (src[0]), READ);
-
- while (n_bytes >= 4 * sizeof (dst[0]))
- {
- dst += 4;
- src += 4;
- n_bytes -= 4 * sizeof (dst[0]);
- CLIB_PREFETCH (dst, 4 * sizeof (dst[0]), WRITE);
- CLIB_PREFETCH (src, 4 * sizeof (src[0]), READ);
- dst[-4] = src[-4];
- dst[-3] = src[-3];
- dst[-2] = src[-2];
- dst[-1] = src[-1];
- }
- }
- else if (8 * sizeof (dst[0]) == CLIB_CACHE_LINE_BYTES)
- {
- CLIB_PREFETCH (dst + 0, 8 * sizeof (dst[0]), WRITE);
- CLIB_PREFETCH (src + 0, 8 * sizeof (src[0]), READ);
-
- while (n_bytes >= 8 * sizeof (dst[0]))
- {
- dst += 8;
- src += 8;
- n_bytes -= 8 * sizeof (dst[0]);
- CLIB_PREFETCH (dst, 8 * sizeof (dst[0]), WRITE);
- CLIB_PREFETCH (src, 8 * sizeof (src[0]), READ);
- dst[-8] = src[-8];
- dst[-7] = src[-7];
- dst[-6] = src[-6];
- dst[-5] = src[-5];
- dst[-4] = src[-4];
- dst[-3] = src[-3];
- dst[-2] = src[-2];
- dst[-1] = src[-1];
- }
- }
- else
- /* Cache line size unknown: fall back to slow version. */;
-
- while (n_bytes > 0)
- {
- *dst++ = *src++;
- n_bytes -= 1 * sizeof (dst[0]);
- }
-}
+#endif
#define BUFFERS_PER_COPY (sizeof (vlib_copy_unit_t) / sizeof (u32))
vlib_buffer_free_list_t * src)
{
uword l;
- u32 * d;
-
+ u32 *d;
+
trim_aligned (src);
trim_aligned (dst);
{
vec_add2_aligned (dst->aligned_buffers, d, l,
/* align */ sizeof (vlib_copy_unit_t));
- vlib_aligned_memcpy (d, src->aligned_buffers, l * sizeof (d[0]));
+ clib_memcpy (d, src->aligned_buffers, l * sizeof (d[0]));
vec_free (src->aligned_buffers);
}
always_inline u32
vlib_buffer_get_free_list_with_size (vlib_main_t * vm, u32 size)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
+ vlib_buffer_main_t *bm = vm->buffer_main;
size = vlib_buffer_round_size (size);
- uword * p = hash_get (bm->free_list_by_size, size);
+ uword *p = hash_get (bm->free_list_by_size, size);
return p ? p[0] : ~0;
}
static u32
vlib_buffer_create_free_list_helper (vlib_main_t * vm,
u32 n_data_bytes,
- u32 is_public,
- u32 is_default,
- u8 * name)
+ u32 is_public, u32 is_default, u8 * name)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- vlib_buffer_free_list_t * f;
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *f;
+#if DPDK > 0
+ int i;
- if (! is_default && pool_elts (bm->buffer_free_list_pool) == 0)
+ ASSERT (os_get_cpu_number () == 0);
+
+ if (!is_default && pool_elts (bm->buffer_free_list_pool) == 0)
{
u32 default_free_free_list_index;
+ /* *INDENT-OFF* */
default_free_free_list_index =
- vlib_buffer_create_free_list_helper (vm,
- /* default buffer size */ VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
- /* is_public */ 1,
- /* is_default */ 1,
- (u8 *) "default");
- ASSERT (default_free_free_list_index == VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ vlib_buffer_create_free_list_helper
+ (vm,
+ /* default buffer size */ VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
+ /* is_public */ 1,
+ /* is_default */ 1,
+ (u8 *) "default");
+ /* *INDENT-ON* */
+ ASSERT (default_free_free_list_index ==
+ VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+
+ if (n_data_bytes == VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES && is_public)
+ return default_free_free_list_index;
+ }
+
+ pool_get_aligned (bm->buffer_free_list_pool, f, CLIB_CACHE_LINE_BYTES);
+
+ memset (f, 0, sizeof (f[0]));
+ f->index = f - bm->buffer_free_list_pool;
+ f->n_data_bytes = vlib_buffer_round_size (n_data_bytes);
+ f->min_n_buffers_each_physmem_alloc = 16;
+ f->name = clib_mem_is_heap_object (name) ? name : format (0, "%s", name);
+
+ /* Setup free buffer template. */
+ f->buffer_init_template.free_list_index = f->index;
+
+ if (is_public)
+ {
+ uword *p = hash_get (bm->free_list_by_size, f->n_data_bytes);
+ if (!p)
+ hash_set (bm->free_list_by_size, f->n_data_bytes, f->index);
+ }
+
+ for (i = 1; i < vec_len (vlib_mains); i++)
+ {
+ vlib_buffer_main_t *wbm = vlib_mains[i]->buffer_main;
+ vlib_buffer_free_list_t *wf;
+ pool_get_aligned (wbm->buffer_free_list_pool,
+ wf, CLIB_CACHE_LINE_BYTES);
+ ASSERT (f - bm->buffer_free_list_pool ==
+ wf - wbm->buffer_free_list_pool);
+ wf[0] = f[0];
+ wf->aligned_buffers = 0;
+ wf->unaligned_buffers = 0;
+ wf->n_alloc = 0;
+ }
+#else
+
+ if (!is_default && pool_elts (bm->buffer_free_list_pool) == 0)
+ {
+ u32 default_free_free_list_index;
+
+ default_free_free_list_index = vlib_buffer_create_free_list_helper (vm,
+ /* default buffer size */
+ VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
+ /* is_public */
+ 1,
+ /* is_default */
+ 1,
+ (u8
+ *)
+ "default");
+ ASSERT (default_free_free_list_index ==
+ VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
if (n_data_bytes == VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES && is_public)
return default_free_free_list_index;
if (is_public)
{
- uword * p = hash_get (bm->free_list_by_size, f->n_data_bytes);
- if (! p)
+ uword *p = hash_get (bm->free_list_by_size, f->n_data_bytes);
+ if (!p)
hash_set (bm->free_list_by_size, f->n_data_bytes, f->index);
}
+#endif
return f->index;
}
-u32 vlib_buffer_create_free_list (vlib_main_t * vm, u32 n_data_bytes,
- char * fmt, ...)
+u32
+vlib_buffer_create_free_list (vlib_main_t * vm, u32 n_data_bytes,
+ char *fmt, ...)
{
va_list va;
- u8 * name;
+ u8 *name;
va_start (va, fmt);
name = va_format (0, fmt, &va);
name);
}
-u32 vlib_buffer_get_or_create_free_list (vlib_main_t * vm, u32 n_data_bytes,
- char * fmt, ...)
+u32
+vlib_buffer_get_or_create_free_list (vlib_main_t * vm, u32 n_data_bytes,
+ char *fmt, ...)
{
u32 i = vlib_buffer_get_free_list_with_size (vm, n_data_bytes);
if (i == ~0)
{
va_list va;
- u8 * name;
+ u8 *name;
va_start (va, fmt);
name = va_format (0, fmt, &va);
/* is_default */ 0,
name);
}
-
+
return i;
}
del_free_list (vlib_main_t * vm, vlib_buffer_free_list_t * f)
{
u32 i;
+#if DPDK > 0
+ struct rte_mbuf *mb;
+ vlib_buffer_t *b;
+
+ for (i = 0; i < vec_len (f->unaligned_buffers); i++)
+ {
+ b = vlib_get_buffer (vm, f->unaligned_buffers[i]);
+ mb = rte_mbuf_from_vlib_buffer (b);
+ ASSERT (rte_mbuf_refcnt_read (mb) == 1);
+ rte_pktmbuf_free (mb);
+ }
+ for (i = 0; i < vec_len (f->aligned_buffers); i++)
+ {
+ b = vlib_get_buffer (vm, f->aligned_buffers[i]);
+ mb = rte_mbuf_from_vlib_buffer (b);
+ ASSERT (rte_mbuf_refcnt_read (mb) == 1);
+ rte_pktmbuf_free (mb);
+ }
+ vec_free (f->name);
+#else
for (i = 0; i < vec_len (f->buffer_memory_allocated); i++)
vm->os_physmem_free (f->buffer_memory_allocated[i]);
vec_free (f->name);
vec_free (f->buffer_memory_allocated);
+#endif
vec_free (f->unaligned_buffers);
vec_free (f->aligned_buffers);
}
/* Add buffer free list. */
-void vlib_buffer_delete_free_list (vlib_main_t * vm, u32 free_list_index)
+void
+vlib_buffer_delete_free_list (vlib_main_t * vm, u32 free_list_index)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- vlib_buffer_free_list_t * f;
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *f;
u32 merge_index;
+#if DPDK > 0
+ int i;
+
+ ASSERT (os_get_cpu_number () == 0);
+
+ f = vlib_buffer_get_free_list (vm, free_list_index);
+
+ merge_index = vlib_buffer_get_free_list_with_size (vm, f->n_data_bytes);
+ if (merge_index != ~0 && merge_index != free_list_index)
+ {
+ merge_free_lists (pool_elt_at_index (bm->buffer_free_list_pool,
+ merge_index), f);
+ }
+
+ del_free_list (vm, f);
+
+ /* Poison it. */
+ memset (f, 0xab, sizeof (f[0]));
+
+ pool_put (bm->buffer_free_list_pool, f);
+
+ for (i = 1; i < vec_len (vlib_mains); i++)
+ {
+ bm = vlib_mains[i]->buffer_main;
+ f = vlib_buffer_get_free_list (vlib_mains[i], free_list_index);;
+ memset (f, 0xab, sizeof (f[0]));
+ pool_put (bm->buffer_free_list_pool, f);
+ }
+#else
f = vlib_buffer_get_free_list (vm, free_list_index);
- ASSERT (vec_len (f->unaligned_buffers) + vec_len (f->aligned_buffers) == f->n_alloc);
+ ASSERT (vec_len (f->unaligned_buffers) + vec_len (f->aligned_buffers) ==
+ f->n_alloc);
merge_index = vlib_buffer_get_free_list_with_size (vm, f->n_data_bytes);
if (merge_index != ~0 && merge_index != free_list_index)
{
memset (f, 0xab, sizeof (f[0]));
pool_put (bm->buffer_free_list_pool, f);
+#endif
}
/* Make sure free list has at least given number of free buffers. */
static uword
fill_free_list (vlib_main_t * vm,
- vlib_buffer_free_list_t * fl,
- uword min_free_buffers)
+ vlib_buffer_free_list_t * fl, uword min_free_buffers)
{
- vlib_buffer_t * buffers, * b;
+#if DPDK > 0
+ vlib_buffer_t *b;
+ int n, i;
+ u32 bi;
+ u32 n_remaining = 0, n_alloc = 0;
+ unsigned socket_id = rte_socket_id ? rte_socket_id () : 0;
+ struct rte_mempool *rmp = vm->buffer_main->pktmbuf_pools[socket_id];
+ struct rte_mbuf *mb;
+
+ /* Too early? */
+ if (PREDICT_FALSE (rmp == 0))
+ return 0;
+
+ trim_aligned (fl);
+
+ /* Already have enough free buffers on free list? */
+ n = min_free_buffers - vec_len (fl->aligned_buffers);
+ if (n <= 0)
+ return min_free_buffers;
+
+ /* Always allocate round number of buffers. */
+ n = round_pow2 (n, BUFFERS_PER_COPY);
+
+ /* Always allocate new buffers in reasonably large sized chunks. */
+ n = clib_max (n, fl->min_n_buffers_each_physmem_alloc);
+
+ vec_validate (vm->mbuf_alloc_list, n - 1);
+
+ if (rte_mempool_get_bulk (rmp, vm->mbuf_alloc_list, n) < 0)
+ return 0;
+
+ _vec_len (vm->mbuf_alloc_list) = n;
+
+ for (i = 0; i < n; i++)
+ {
+ mb = vm->mbuf_alloc_list[i];
+
+ ASSERT (rte_mbuf_refcnt_read (mb) == 0);
+ rte_mbuf_refcnt_set (mb, 1);
+
+ b = vlib_buffer_from_rte_mbuf (mb);
+ bi = vlib_get_buffer_index (vm, b);
+
+ vec_add1_aligned (fl->aligned_buffers, bi, sizeof (vlib_copy_unit_t));
+ n_alloc++;
+ n_remaining--;
+
+ vlib_buffer_init_for_free_list (b, fl);
+
+ if (fl->buffer_init_function)
+ fl->buffer_init_function (vm, fl, &bi, 1);
+ }
+
+ fl->n_alloc += n;
+
+ return n;
+#else
+ vlib_buffer_t *buffers, *b;
int n, n_bytes, i;
- u32 * bi;
+ u32 *bi;
u32 n_remaining, n_alloc, n_this_chunk;
trim_aligned (fl);
while (n_remaining > 0)
{
n_this_chunk = clib_min (n_remaining, 16);
-
+
n_bytes = n_this_chunk * (sizeof (b[0]) + fl->n_data_bytes);
/* drb: removed power-of-2 ASSERT */
buffers = vm->os_physmem_alloc_aligned (&vm->physmem_main,
- n_bytes, sizeof (vlib_buffer_t));
- if (! buffers)
- return n_alloc;
+ n_bytes,
+ sizeof (vlib_buffer_t));
+ if (!buffers)
+ return n_alloc;
/* Record chunk as being allocated so we can free it later. */
vec_add1 (fl->buffer_memory_allocated, buffers);
n_remaining -= n_this_chunk;
b = buffers;
- vec_add2_aligned (fl->aligned_buffers, bi, n_this_chunk,
- sizeof (vlib_copy_unit_t));
+ vec_add2_aligned (fl->aligned_buffers, bi, n_this_chunk,
+ sizeof (vlib_copy_unit_t));
for (i = 0; i < n_this_chunk; i++)
- {
- bi[i] = vlib_get_buffer_index (vm, b);
+ {
+ bi[i] = vlib_get_buffer_index (vm, b);
- if (CLIB_DEBUG > 0)
- vlib_buffer_set_known_state (vm, bi[i], VLIB_BUFFER_KNOWN_FREE);
- b = vlib_buffer_next_contiguous (b, fl->n_data_bytes);
- }
+ if (CLIB_DEBUG > 0)
+ vlib_buffer_set_known_state (vm, bi[i], VLIB_BUFFER_KNOWN_FREE);
+ b = vlib_buffer_next_contiguous (b, fl->n_data_bytes);
+ }
memset (buffers, 0, n_bytes);
/* Initialize all new buffers. */
b = buffers;
for (i = 0; i < n_this_chunk; i++)
- {
- vlib_buffer_init_for_free_list (b, fl);
- b = vlib_buffer_next_contiguous (b, fl->n_data_bytes);
- }
-
+ {
+ vlib_buffer_init_for_free_list (b, fl);
+ b = vlib_buffer_next_contiguous (b, fl->n_data_bytes);
+ }
+
if (fl->buffer_init_function)
- fl->buffer_init_function (vm, fl, bi, n_this_chunk);
+ fl->buffer_init_function (vm, fl, bi, n_this_chunk);
}
return n_alloc;
+#endif
}
always_inline uword
copy_alignment (u32 * x)
-{ return (pointer_to_uword (x) / sizeof (x[0])) % BUFFERS_PER_COPY; }
+{
+ return (pointer_to_uword (x) / sizeof (x[0])) % BUFFERS_PER_COPY;
+}
static u32
alloc_from_free_list (vlib_main_t * vm,
vlib_buffer_free_list_t * free_list,
- u32 * alloc_buffers,
- u32 n_alloc_buffers)
+ u32 * alloc_buffers, u32 n_alloc_buffers)
{
- u32 * dst, * u_src;
+ u32 *dst, *u_src;
uword u_len, n_left;
uword n_unaligned_start, n_unaligned_end, n_filled;
- ASSERT(os_get_cpu_number() == 0);
+#if DPDK == 0
+ ASSERT (os_get_cpu_number () == 0);
+#endif
n_left = n_alloc_buffers;
dst = alloc_buffers;
n_unaligned_start = ((BUFFERS_PER_COPY - copy_alignment (dst))
n_filled = fill_free_list (vm, free_list, n_alloc_buffers);
if (n_filled == 0)
return 0;
-
+
n_left = n_filled < n_left ? n_filled : n_left;
n_alloc_buffers = n_left;
/* Aligned copy. */
{
- vlib_copy_unit_t * d, * s;
+ vlib_copy_unit_t *d, *s;
uword n_copy;
- if (vec_len(free_list->aligned_buffers) < ((n_left/BUFFERS_PER_COPY)*BUFFERS_PER_COPY))
- abort();
+ if (vec_len (free_list->aligned_buffers) <
+ ((n_left / BUFFERS_PER_COPY) * BUFFERS_PER_COPY))
+ abort ();
n_copy = n_left / BUFFERS_PER_COPY;
n_left = n_left % BUFFERS_PER_COPY;
u_len--;
}
- if (! free_list->unaligned_buffers)
+ if (!free_list->unaligned_buffers)
ASSERT (u_len == 0);
else
_vec_len (free_list->unaligned_buffers) = u_len;
+#if DPDK == 0
/* Verify that buffers are known free. */
vlib_buffer_validate_alloc_free (vm, alloc_buffers,
- n_alloc_buffers,
- VLIB_BUFFER_KNOWN_FREE);
+ n_alloc_buffers, VLIB_BUFFER_KNOWN_FREE);
+#endif
return n_alloc_buffers;
}
/* Allocate a given number of buffers into given array.
Returns number actually allocated which will be either zero or
number requested. */
-u32 vlib_buffer_alloc (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
+u32
+vlib_buffer_alloc (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- ASSERT(os_get_cpu_number() == 0);
+ vlib_buffer_main_t *bm = vm->buffer_main;
+#if DPDK == 0
+ ASSERT (os_get_cpu_number () == 0);
+#endif
return alloc_from_free_list
(vm,
buffers, n_buffers);
}
-u32 vlib_buffer_alloc_from_free_list (vlib_main_t * vm,
- u32 * buffers,
- u32 n_buffers,
- u32 free_list_index)
+u32
+vlib_buffer_alloc_from_free_list (vlib_main_t * vm,
+ u32 * buffers,
+ u32 n_buffers, u32 free_list_index)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- vlib_buffer_free_list_t * f;
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *f;
f = pool_elt_at_index (bm->buffer_free_list_pool, free_list_index);
return alloc_from_free_list (vm, f, buffers, n_buffers);
}
always_inline void
add_buffer_to_free_list (vlib_main_t * vm,
- vlib_buffer_free_list_t * f,
+ vlib_buffer_free_list_t * f,
u32 buffer_index, u8 do_init)
{
- vlib_buffer_t * b;
+ vlib_buffer_t *b;
b = vlib_get_buffer (vm, buffer_index);
- if (PREDICT_TRUE(do_init))
- vlib_buffer_init_for_free_list (b, f);
- vec_add1_aligned (f->aligned_buffers, buffer_index, sizeof (vlib_copy_unit_t));
+ if (PREDICT_TRUE (do_init))
+ vlib_buffer_init_for_free_list (b, f);
+ vec_add1_aligned (f->aligned_buffers, buffer_index,
+ sizeof (vlib_copy_unit_t));
}
always_inline vlib_buffer_free_list_t *
buffer_get_free_list (vlib_main_t * vm, vlib_buffer_t * b, u32 * index)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
+ vlib_buffer_main_t *bm = vm->buffer_main;
u32 i;
*index = i = b->free_list_index;
return pool_elt_at_index (bm->buffer_free_list_pool, i);
}
-void *vlib_set_buffer_free_callback (vlib_main_t *vm, void *fp)
+void *
+vlib_set_buffer_free_callback (vlib_main_t * vm, void *fp)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- void * rv = bm->buffer_free_callback;
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ void *rv = bm->buffer_free_callback;
bm->buffer_free_callback = fp;
return rv;
}
+#if DPDK == 0
void vnet_buffer_free_dpdk_mb (vlib_buffer_t * b) __attribute__ ((weak));
-void vnet_buffer_free_dpdk_mb (vlib_buffer_t * b) { }
+void
+vnet_buffer_free_dpdk_mb (vlib_buffer_t * b)
+{
+}
+#endif
static_always_inline void
vlib_buffer_free_inline (vlib_main_t * vm,
- u32 * buffers,
- u32 n_buffers,
- u32 follow_buffer_next)
+ u32 * buffers, u32 n_buffers, u32 follow_buffer_next)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- vlib_buffer_free_list_t * fl;
- static u32 * next_to_free[2]; /* smp bad */
- u32 i_next_to_free, * b, * n, * f, fi;
+#if DPDK > 0
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *fl;
+ u32 fi;
+ int i;
+ u32 (*cb) (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
+ u32 follow_buffer_next);
+
+ cb = bm->buffer_free_callback;
+
+ if (PREDICT_FALSE (cb != 0))
+ n_buffers = (*cb) (vm, buffers, n_buffers, follow_buffer_next);
+
+ if (!n_buffers)
+ return;
+
+ for (i = 0; i < n_buffers; i++)
+ {
+ vlib_buffer_t *b;
+ struct rte_mbuf *mb;
+
+ b = vlib_get_buffer (vm, buffers[i]);
+
+ fl = buffer_get_free_list (vm, b, &fi);
+
+ /* The only current use of this callback: multicast recycle */
+ if (PREDICT_FALSE (fl->buffers_added_to_freelist_function != 0))
+ {
+ int j;
+
+ add_buffer_to_free_list
+ (vm, fl, buffers[i], (b->flags & VLIB_BUFFER_RECYCLE) == 0);
+
+ for (j = 0; j < vec_len (bm->announce_list); j++)
+ {
+ if (fl == bm->announce_list[j])
+ goto already_announced;
+ }
+ vec_add1 (bm->announce_list, fl);
+ already_announced:
+ ;
+ }
+ else
+ {
+ if (PREDICT_TRUE ((b->flags & VLIB_BUFFER_RECYCLE) == 0))
+ {
+ mb = rte_mbuf_from_vlib_buffer (b);
+ ASSERT (rte_mbuf_refcnt_read (mb) == 1);
+ rte_pktmbuf_free (mb);
+ }
+ }
+ }
+ if (vec_len (bm->announce_list))
+ {
+ vlib_buffer_free_list_t *fl;
+ for (i = 0; i < vec_len (bm->announce_list); i++)
+ {
+ fl = bm->announce_list[i];
+ fl->buffers_added_to_freelist_function (vm, fl);
+ }
+ _vec_len (bm->announce_list) = 0;
+ }
+#else
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *fl;
+ static u32 *next_to_free[2]; /* smp bad */
+ u32 i_next_to_free, *b, *n, *f, fi;
uword n_left;
int i;
- static vlib_buffer_free_list_t ** announce_list;
- vlib_buffer_free_list_t * fl0 = 0, * fl1 = 0;
- u32 bi0=(u32)~0, bi1=(u32)~0, fi0, fi1 = (u32)~0;
- u8 free0, free1=0, free_next0, free_next1;
- u32 (*cb)(vlib_main_t * vm, u32 * buffers, u32 n_buffers,
- u32 follow_buffer_next);
-
- ASSERT(os_get_cpu_number() == 0);
-
+ static vlib_buffer_free_list_t **announce_list;
+ vlib_buffer_free_list_t *fl0 = 0, *fl1 = 0;
+ u32 bi0 = (u32) ~ 0, bi1 = (u32) ~ 0, fi0, fi1 = (u32) ~ 0;
+ u8 free0, free1 = 0, free_next0, free_next1;
+ u32 (*cb) (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
+ u32 follow_buffer_next);
+
+ ASSERT (os_get_cpu_number () == 0);
+
cb = bm->buffer_free_callback;
if (PREDICT_FALSE (cb != 0))
- n_buffers = (*cb)(vm, buffers, n_buffers, follow_buffer_next);
+ n_buffers = (*cb) (vm, buffers, n_buffers, follow_buffer_next);
- if (! n_buffers)
+ if (!n_buffers)
return;
/* Use first buffer to get default free list. */
{
u32 bi0 = buffers[0];
- vlib_buffer_t * b0;
+ vlib_buffer_t *b0;
b0 = vlib_get_buffer (vm, bi0);
fl = buffer_get_free_list (vm, b0, &fi);
if (fl->buffers_added_to_freelist_function)
- vec_add1 (announce_list, fl);
+ vec_add1 (announce_list, fl);
}
vec_validate (next_to_free[0], n_buffers - 1);
n_left = n_buffers;
b = buffers;
- again:
+again:
/* Verify that buffers are known allocated. */
vlib_buffer_validate_alloc_free (vm, b,
- n_left,
- VLIB_BUFFER_KNOWN_ALLOCATED);
+ n_left, VLIB_BUFFER_KNOWN_ALLOCATED);
vec_add2_aligned (fl->aligned_buffers, f, n_left,
/* align */ sizeof (vlib_copy_unit_t));
n = next_to_free[i_next_to_free];
while (n_left >= 4)
{
- vlib_buffer_t * b0, * b1, * binit0, * binit1, dummy_buffers[2];
+ vlib_buffer_t *b0, *b1, *binit0, *binit1, dummy_buffers[2];
bi0 = b[0];
bi1 = b[1];
fl1 = pool_elt_at_index (bm->buffer_free_list_pool, fi1);
add_buffer_to_free_list (vm, fl0, bi0, free0);
- if (PREDICT_FALSE(fl0->buffers_added_to_freelist_function != 0))
- {
- int i;
- for (i = 0; i < vec_len (announce_list); i++)
- if (fl0 == announce_list[i])
- goto no_fl0;
- vec_add1(announce_list, fl0);
- }
+ if (PREDICT_FALSE (fl0->buffers_added_to_freelist_function != 0))
+ {
+ int i;
+ for (i = 0; i < vec_len (announce_list); i++)
+ if (fl0 == announce_list[i])
+ goto no_fl0;
+ vec_add1 (announce_list, fl0);
+ }
no_fl0:
- if (PREDICT_FALSE(fl1->buffers_added_to_freelist_function != 0))
- {
- int i;
- for (i = 0; i < vec_len (announce_list); i++)
- if (fl1 == announce_list[i])
- goto no_fl1;
- vec_add1(announce_list, fl1);
- }
+ if (PREDICT_FALSE (fl1->buffers_added_to_freelist_function != 0))
+ {
+ int i;
+ for (i = 0; i < vec_len (announce_list); i++)
+ if (fl1 == announce_list[i])
+ goto no_fl1;
+ vec_add1 (announce_list, fl1);
+ }
no_fl1:
add_buffer_to_free_list (vm, fl1, bi1, free1);
while (n_left >= 1)
{
- vlib_buffer_t * b0, * binit0, dummy_buffers[1];
+ vlib_buffer_t *b0, *binit0, dummy_buffers[1];
bi0 = b[0];
f[0] = bi0;
fl0 = pool_elt_at_index (bm->buffer_free_list_pool, fi0);
add_buffer_to_free_list (vm, fl0, bi0, free0);
- if (PREDICT_FALSE(fl0->buffers_added_to_freelist_function != 0))
- {
- int i;
- for (i = 0; i < vec_len (announce_list); i++)
- if (fl0 == announce_list[i])
- goto no_fl00;
- vec_add1(announce_list, fl0);
- }
-
+ if (PREDICT_FALSE (fl0->buffers_added_to_freelist_function != 0))
+ {
+ int i;
+ for (i = 0; i < vec_len (announce_list); i++)
+ if (fl0 == announce_list[i])
+ goto no_fl00;
+ vec_add1 (announce_list, fl0);
+ }
+
no_fl00:
fi = fi0;
fl = pool_elt_at_index (bm->buffer_free_list_pool, fi);
_vec_len (fl->aligned_buffers) = f - fl->aligned_buffers;
- if (vec_len(announce_list))
+ if (vec_len (announce_list))
{
- vlib_buffer_free_list_t * fl;
+ vlib_buffer_free_list_t *fl;
for (i = 0; i < vec_len (announce_list); i++)
- {
- fl = announce_list[i];
- fl->buffers_added_to_freelist_function (vm, fl);
- }
- _vec_len(announce_list) = 0;
+ {
+ fl = announce_list[i];
+ fl->buffers_added_to_freelist_function (vm, fl);
+ }
+ _vec_len (announce_list) = 0;
}
+#endif
}
-void vlib_buffer_free (vlib_main_t * vm,
- u32 * buffers,
- u32 n_buffers)
+void
+vlib_buffer_free (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
{
- vlib_buffer_free_inline (vm, buffers, n_buffers, /* follow_buffer_next */ 1);
+ vlib_buffer_free_inline (vm, buffers, n_buffers, /* follow_buffer_next */
+ 1);
}
-void vlib_buffer_free_no_next (vlib_main_t * vm,
- u32 * buffers,
- u32 n_buffers)
+void
+vlib_buffer_free_no_next (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
{
- vlib_buffer_free_inline (vm, buffers, n_buffers, /* follow_buffer_next */ 0);
+ vlib_buffer_free_inline (vm, buffers, n_buffers, /* follow_buffer_next */
+ 0);
}
+#if DPDK == 0
/* Copy template packet data into buffers as they are allocated. */
static void
vlib_packet_template_buffer_init (vlib_main_t * vm,
vlib_buffer_free_list_t * fl,
- u32 * buffers,
- u32 n_buffers)
+ u32 * buffers, u32 n_buffers)
{
- vlib_packet_template_t * t = uword_to_pointer (fl->buffer_init_function_opaque,
- vlib_packet_template_t *);
+ vlib_packet_template_t *t =
+ uword_to_pointer (fl->buffer_init_function_opaque,
+ vlib_packet_template_t *);
uword i;
for (i = 0; i < n_buffers; i++)
{
- vlib_buffer_t * b = vlib_get_buffer (vm, buffers[i]);
+ vlib_buffer_t *b = vlib_get_buffer (vm, buffers[i]);
ASSERT (b->current_length == vec_len (t->packet_data));
- clib_memcpy (vlib_buffer_get_current (b), t->packet_data, b->current_length);
+ clib_memcpy (vlib_buffer_get_current (b), t->packet_data,
+ b->current_length);
}
}
+#endif
-void vlib_packet_template_init (vlib_main_t * vm,
- vlib_packet_template_t * t,
- void * packet_data,
- uword n_packet_data_bytes,
- uword min_n_buffers_each_physmem_alloc,
- char * fmt,
- ...)
+void
+vlib_packet_template_init (vlib_main_t * vm,
+ vlib_packet_template_t * t,
+ void *packet_data,
+ uword n_packet_data_bytes,
+ uword min_n_buffers_each_physmem_alloc,
+ char *fmt, ...)
{
- vlib_buffer_free_list_t * fl;
+#if DPDK > 0
va_list va;
- u8 * name;
+ __attribute__ ((unused)) u8 *name;
+
+ va_start (va, fmt);
+ name = va_format (0, fmt, &va);
+ va_end (va);
+
+ vlib_worker_thread_barrier_sync (vm);
+ memset (t, 0, sizeof (t[0]));
+
+ vec_add (t->packet_data, packet_data, n_packet_data_bytes);
+
+ vlib_worker_thread_barrier_release (vm);
+#else
+ vlib_buffer_free_list_t *fl;
+ va_list va;
+ u8 *name;
va_start (va, fmt);
name = va_format (0, fmt, &va);
fl->buffer_init_template.current_data = 0;
fl->buffer_init_template.current_length = n_packet_data_bytes;
fl->buffer_init_template.flags = 0;
+#endif
}
void *
-vlib_packet_template_get_packet (vlib_main_t * vm,
- vlib_packet_template_t * t,
- u32 * bi_result)
+vlib_packet_template_get_packet (vlib_main_t * vm,
+ vlib_packet_template_t * t, u32 * bi_result)
{
u32 bi;
- vlib_buffer_t * b;
+ vlib_buffer_t *b;
if (vlib_buffer_alloc (vm, &bi, 1) != 1)
return 0;
b = vlib_get_buffer (vm, bi);
clib_memcpy (vlib_buffer_get_current (b),
- t->packet_data, vec_len(t->packet_data));
- b->current_length = vec_len(t->packet_data);
+ t->packet_data, vec_len (t->packet_data));
+ b->current_length = vec_len (t->packet_data);
return b->data;
}
-void vlib_packet_template_get_packet_helper (vlib_main_t * vm, vlib_packet_template_t * t)
+#if DPDK == 0
+void
+vlib_packet_template_get_packet_helper (vlib_main_t * vm,
+ vlib_packet_template_t * t)
{
word n = t->min_n_buffers_each_physmem_alloc;
word l = vec_len (t->packet_data);
_vec_len (t->free_buffers) = n_alloc;
}
+#endif
/* Append given data to end of buffer, possibly allocating new buffers. */
-u32 vlib_buffer_add_data (vlib_main_t * vm,
- u32 free_list_index,
- u32 buffer_index,
- void * data, u32 n_data_bytes)
+u32
+vlib_buffer_add_data (vlib_main_t * vm,
+ u32 free_list_index,
+ u32 buffer_index, void *data, u32 n_data_bytes)
{
u32 n_buffer_bytes, n_left, n_left_this_buffer, bi;
- vlib_buffer_t * b;
- void * d;
+ vlib_buffer_t *b;
+ void *d;
bi = buffer_index;
if (bi == 0
d = data;
n_left = n_data_bytes;
n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm, free_list_index);
-
+
b = vlib_get_buffer (vm, bi);
b->flags &= ~VLIB_BUFFER_TOTAL_LENGTH_VALID;
- /* Get to the end of the chain before we try to append data...*/
+ /* Get to the end of the chain before we try to append data... */
while (b->flags & VLIB_BUFFER_NEXT_PRESENT)
b = vlib_get_buffer (vm, b->next_buffer);
u32 n;
ASSERT (n_buffer_bytes >= b->current_length);
- n_left_this_buffer = n_buffer_bytes - (b->current_data + b->current_length);
+ n_left_this_buffer =
+ n_buffer_bytes - (b->current_data + b->current_length);
n = clib_min (n_left_this_buffer, n_left);
clib_memcpy (vlib_buffer_get_current (b) + b->current_length, d, n);
b->current_length += n;
break;
d += n;
- if (1 != vlib_buffer_alloc_from_free_list (vm, &b->next_buffer, 1, free_list_index))
+ if (1 !=
+ vlib_buffer_alloc_from_free_list (vm, &b->next_buffer, 1,
+ free_list_index))
goto out_of_buffers;
b->flags |= VLIB_BUFFER_NEXT_PRESENT;
return bi;
- out_of_buffers:
+out_of_buffers:
clib_error ("out of buffers");
return bi;
}
u16
-vlib_buffer_chain_append_data_with_alloc(vlib_main_t *vm,
- u32 free_list_index,
- vlib_buffer_t *first,
- vlib_buffer_t **last,
- void * data, u16 data_len) {
+vlib_buffer_chain_append_data_with_alloc (vlib_main_t * vm,
+ u32 free_list_index,
+ vlib_buffer_t * first,
+ vlib_buffer_t ** last,
+ void *data, u16 data_len)
+{
vlib_buffer_t *l = *last;
- u32 n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm, free_list_index);
+ u32 n_buffer_bytes =
+ vlib_buffer_free_list_buffer_size (vm, free_list_index);
u16 copied = 0;
- ASSERT(n_buffer_bytes >= l->current_length + l->current_data);
- while (data_len) {
- u16 max = n_buffer_bytes - l->current_length - l->current_data;
- if (max == 0) {
- if (1 != vlib_buffer_alloc_from_free_list (vm, &l->next_buffer, 1, free_list_index))
- return copied;
- *last = l = vlib_buffer_chain_buffer(vm, first, l, l->next_buffer);
- max = n_buffer_bytes - l->current_length - l->current_data;
- }
+ ASSERT (n_buffer_bytes >= l->current_length + l->current_data);
+ while (data_len)
+ {
+ u16 max = n_buffer_bytes - l->current_length - l->current_data;
+ if (max == 0)
+ {
+ if (1 !=
+ vlib_buffer_alloc_from_free_list (vm, &l->next_buffer, 1,
+ free_list_index))
+ return copied;
+ *last = l = vlib_buffer_chain_buffer (vm, first, l, l->next_buffer);
+ max = n_buffer_bytes - l->current_length - l->current_data;
+ }
- u16 len = (data_len > max)?max:data_len;
- clib_memcpy(vlib_buffer_get_current (l) + l->current_length, data + copied, len);
- vlib_buffer_chain_increase_length(first, l, len);
- data_len -= len;
- copied += len;
- }
+ u16 len = (data_len > max) ? max : data_len;
+ clib_memcpy (vlib_buffer_get_current (l) + l->current_length,
+ data + copied, len);
+ vlib_buffer_chain_increase_length (first, l, len);
+ data_len -= len;
+ copied += len;
+ }
return copied;
}
-/*
- * Fills in the required rte_mbuf fields for chained buffers given a VLIB chain.
- */
-void vlib_buffer_chain_validate (vlib_main_t * vm, vlib_buffer_t * b_first)
+#if DPDK > 0
+clib_error_t *
+vlib_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
+ unsigned socket_id)
{
- return;
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+ struct rte_mempool *rmp;
+ int i;
+
+ if (!rte_pktmbuf_pool_create)
+ return clib_error_return (0, "not linked with DPDK");
+
+ vec_validate_aligned (bm->pktmbuf_pools, socket_id, CLIB_CACHE_LINE_BYTES);
+
+ /* pool already exists, nothing to do */
+ if (bm->pktmbuf_pools[socket_id])
+ return 0;
+
+ u8 *pool_name = format (0, "mbuf_pool_socket%u%c", socket_id, 0);
+
+ rmp = rte_pktmbuf_pool_create ((char *) pool_name, /* pool name */
+ num_mbufs, /* number of mbufs */
+ 512, /* cache size */
+ VLIB_BUFFER_HDR_SIZE, /* priv size */
+ VLIB_BUFFER_PRE_DATA_SIZE + VLIB_BUFFER_DATA_SIZE, /* dataroom size */
+ socket_id); /* cpu socket */
+
+ if (rmp)
+ {
+ {
+ uword this_pool_end;
+ uword this_pool_start;
+ uword this_pool_size;
+ uword save_vpm_start, save_vpm_end, save_vpm_size;
+ struct rte_mempool_memhdr *memhdr;
+
+ this_pool_start = ~0ULL;
+ this_pool_end = 0LL;
+
+ STAILQ_FOREACH (memhdr, &rmp->mem_list, next)
+ {
+ if (((uword) (memhdr->addr + memhdr->len)) > this_pool_end)
+ this_pool_end = (uword) (memhdr->addr + memhdr->len);
+ if (((uword) memhdr->addr) < this_pool_start)
+ this_pool_start = (uword) (memhdr->addr);
+ }
+ ASSERT (this_pool_start < ~0ULL && this_pool_end > 0);
+ this_pool_size = this_pool_end - this_pool_start;
+
+ if (CLIB_DEBUG > 1)
+ {
+ clib_warning ("%s: pool start %llx pool end %llx pool size %lld",
+ pool_name, this_pool_start, this_pool_end,
+ this_pool_size);
+ clib_warning
+ ("before: virtual.start %llx virtual.end %llx virtual.size %lld",
+ vpm->virtual.start, vpm->virtual.end, vpm->virtual.size);
+ }
+
+ save_vpm_start = vpm->virtual.start;
+ save_vpm_end = vpm->virtual.end;
+ save_vpm_size = vpm->virtual.size;
+
+ if ((this_pool_start < vpm->virtual.start) || vpm->virtual.start == 0)
+ vpm->virtual.start = this_pool_start;
+ if (this_pool_end > vpm->virtual.end)
+ vpm->virtual.end = this_pool_end;
+
+ vpm->virtual.size = vpm->virtual.end - vpm->virtual.start;
+
+ if (CLIB_DEBUG > 1)
+ {
+ clib_warning
+ ("after: virtual.start %llx virtual.end %llx virtual.size %lld",
+ vpm->virtual.start, vpm->virtual.end, vpm->virtual.size);
+ }
+
+ /* check if fits into buffer index range */
+ if ((u64) vpm->virtual.size >
+ ((u64) 1 << (32 + CLIB_LOG2_CACHE_LINE_BYTES)))
+ {
+ clib_warning ("physmem: virtual size out of range!");
+ vpm->virtual.start = save_vpm_start;
+ vpm->virtual.end = save_vpm_end;
+ vpm->virtual.size = save_vpm_size;
+ rmp = 0;
+ }
+ }
+ if (rmp)
+ {
+ bm->pktmbuf_pools[socket_id] = rmp;
+ vec_free (pool_name);
+ return 0;
+ }
+ }
+
+ vec_free (pool_name);
+
+ /* no usable pool for this socket, try to use pool from another one */
+ for (i = 0; i < vec_len (bm->pktmbuf_pools); i++)
+ {
+ if (bm->pktmbuf_pools[i])
+ {
+ clib_warning
+ ("WARNING: Failed to allocate mempool for CPU socket %u. "
+ "Threads running on socket %u will use socket %u mempool.",
+ socket_id, socket_id, i);
+ bm->pktmbuf_pools[socket_id] = bm->pktmbuf_pools[i];
+ return 0;
+ }
+ }
+
+ return clib_error_return (0, "failed to allocate mempool on socket %u",
+ socket_id);
}
+#endif
-static void vlib_serialize_tx (serialize_main_header_t * m, serialize_stream_t * s)
+static void
+vlib_serialize_tx (serialize_main_header_t * m, serialize_stream_t * s)
{
- vlib_main_t * vm;
- vlib_serialize_buffer_main_t * sm;
+ vlib_main_t *vm;
+ vlib_serialize_buffer_main_t *sm;
uword n, n_bytes_to_write;
- vlib_buffer_t * last;
+ vlib_buffer_t *last;
n_bytes_to_write = s->current_buffer_index;
- sm = uword_to_pointer (s->data_function_opaque, vlib_serialize_buffer_main_t *);
+ sm =
+ uword_to_pointer (s->data_function_opaque,
+ vlib_serialize_buffer_main_t *);
vm = sm->vlib_main;
ASSERT (sm->tx.max_n_data_bytes_per_chain > 0);
if (serialize_stream_is_end_of_stream (s)
- || sm->tx.n_total_data_bytes + n_bytes_to_write > sm->tx.max_n_data_bytes_per_chain)
+ || sm->tx.n_total_data_bytes + n_bytes_to_write >
+ sm->tx.max_n_data_bytes_per_chain)
{
- vlib_process_t * p = vlib_get_current_process (vm);
+ vlib_process_t *p = vlib_get_current_process (vm);
last = vlib_get_buffer (vm, sm->last_buffer);
last->current_length = n_bytes_to_write;
- vlib_set_next_frame_buffer (vm, &p->node_runtime, sm->tx.next_index, sm->first_buffer);
+ vlib_set_next_frame_buffer (vm, &p->node_runtime, sm->tx.next_index,
+ sm->first_buffer);
sm->first_buffer = sm->last_buffer = ~0;
sm->tx.n_total_data_bytes = 0;
{
ASSERT (sm->first_buffer == ~0);
ASSERT (sm->last_buffer == ~0);
- n = vlib_buffer_alloc_from_free_list (vm, &sm->first_buffer, 1, sm->tx.free_list_index);
+ n =
+ vlib_buffer_alloc_from_free_list (vm, &sm->first_buffer, 1,
+ sm->tx.free_list_index);
if (n != 1)
- serialize_error (m, clib_error_create ("vlib_buffer_alloc_from_free_list fails"));
+ serialize_error (m,
+ clib_error_create
+ ("vlib_buffer_alloc_from_free_list fails"));
sm->last_buffer = sm->first_buffer;
- s->n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm, sm->tx.free_list_index);
+ s->n_buffer_bytes =
+ vlib_buffer_free_list_buffer_size (vm, sm->tx.free_list_index);
}
if (n_bytes_to_write > 0)
{
- vlib_buffer_t * prev = vlib_get_buffer (vm, sm->last_buffer);
- n = vlib_buffer_alloc_from_free_list (vm, &sm->last_buffer, 1, sm->tx.free_list_index);
+ vlib_buffer_t *prev = vlib_get_buffer (vm, sm->last_buffer);
+ n =
+ vlib_buffer_alloc_from_free_list (vm, &sm->last_buffer, 1,
+ sm->tx.free_list_index);
if (n != 1)
- serialize_error (m, clib_error_create ("vlib_buffer_alloc_from_free_list fails"));
+ serialize_error (m,
+ clib_error_create
+ ("vlib_buffer_alloc_from_free_list fails"));
sm->tx.n_total_data_bytes += n_bytes_to_write;
prev->current_length = n_bytes_to_write;
prev->next_buffer = sm->last_buffer;
}
}
-static void vlib_serialize_rx (serialize_main_header_t * m, serialize_stream_t * s)
+static void
+vlib_serialize_rx (serialize_main_header_t * m, serialize_stream_t * s)
{
- vlib_main_t * vm;
- vlib_serialize_buffer_main_t * sm;
- vlib_buffer_t * last;
+ vlib_main_t *vm;
+ vlib_serialize_buffer_main_t *sm;
+ vlib_buffer_t *last;
- sm = uword_to_pointer (s->data_function_opaque, vlib_serialize_buffer_main_t *);
+ sm =
+ uword_to_pointer (s->data_function_opaque,
+ vlib_serialize_buffer_main_t *);
vm = sm->vlib_main;
if (serialize_stream_is_end_of_stream (s))
{
while (clib_fifo_elts (sm->rx.buffer_fifo) == 0)
{
- sm->rx.ready_one_time_event = vlib_process_create_one_time_event (vm, vlib_current_process (vm), ~0);
- vlib_process_wait_for_one_time_event (vm, /* no event data */ 0, sm->rx.ready_one_time_event);
+ sm->rx.ready_one_time_event =
+ vlib_process_create_one_time_event (vm, vlib_current_process (vm),
+ ~0);
+ vlib_process_wait_for_one_time_event (vm, /* no event data */ 0,
+ sm->rx.ready_one_time_event);
}
clib_fifo_sub1 (sm->rx.buffer_fifo, sm->first_buffer);
static void
serialize_open_vlib_helper (serialize_main_t * m,
vlib_main_t * vm,
- vlib_serialize_buffer_main_t * sm,
- uword is_read)
+ vlib_serialize_buffer_main_t * sm, uword is_read)
{
/* Initialize serialize main but save overflow buffer for re-use between calls. */
{
- u8 * save = m->stream.overflow_buffer;
+ u8 *save = m->stream.overflow_buffer;
memset (m, 0, sizeof (m[0]));
m->stream.overflow_buffer = save;
if (save)
m->stream.data_function_opaque = pointer_to_uword (sm);
}
-void serialize_open_vlib_buffer (serialize_main_t * m, vlib_main_t * vm, vlib_serialize_buffer_main_t * sm)
-{ serialize_open_vlib_helper (m, vm, sm, /* is_read */ 0); }
+void
+serialize_open_vlib_buffer (serialize_main_t * m, vlib_main_t * vm,
+ vlib_serialize_buffer_main_t * sm)
+{
+ serialize_open_vlib_helper (m, vm, sm, /* is_read */ 0);
+}
-void unserialize_open_vlib_buffer (serialize_main_t * m, vlib_main_t * vm, vlib_serialize_buffer_main_t * sm)
-{ serialize_open_vlib_helper (m, vm, sm, /* is_read */ 1); }
+void
+unserialize_open_vlib_buffer (serialize_main_t * m, vlib_main_t * vm,
+ vlib_serialize_buffer_main_t * sm)
+{
+ serialize_open_vlib_helper (m, vm, sm, /* is_read */ 1);
+}
-u32 serialize_close_vlib_buffer (serialize_main_t * m)
+u32
+serialize_close_vlib_buffer (serialize_main_t * m)
{
- vlib_serialize_buffer_main_t * sm
- = uword_to_pointer (m->stream.data_function_opaque, vlib_serialize_buffer_main_t *);
- vlib_buffer_t * last;
- serialize_stream_t * s = &m->stream;
+ vlib_serialize_buffer_main_t *sm
+ = uword_to_pointer (m->stream.data_function_opaque,
+ vlib_serialize_buffer_main_t *);
+ vlib_buffer_t *last;
+ serialize_stream_t *s = &m->stream;
last = vlib_get_buffer (sm->vlib_main, sm->last_buffer);
last->current_length = s->current_buffer_index;
return sm->first_buffer;
}
-void unserialize_close_vlib_buffer (serialize_main_t * m)
+void
+unserialize_close_vlib_buffer (serialize_main_t * m)
{
- vlib_serialize_buffer_main_t * sm
- = uword_to_pointer (m->stream.data_function_opaque, vlib_serialize_buffer_main_t *);
+ vlib_serialize_buffer_main_t *sm
+ = uword_to_pointer (m->stream.data_function_opaque,
+ vlib_serialize_buffer_main_t *);
if (sm->first_buffer != ~0)
vlib_buffer_free_one (sm->vlib_main, sm->first_buffer);
clib_fifo_reset (sm->rx.buffer_fifo);
_vec_len (m->stream.overflow_buffer) = 0;
}
-static u8 * format_vlib_buffer_free_list (u8 * s, va_list * va)
+static u8 *
+format_vlib_buffer_free_list (u8 * s, va_list * va)
{
- vlib_buffer_free_list_t * f = va_arg (*va, vlib_buffer_free_list_t *);
+ vlib_buffer_free_list_t *f = va_arg (*va, vlib_buffer_free_list_t *);
+#if DPDK > 0
+ u32 threadnum = va_arg (*va, u32);
uword bytes_alloc, bytes_free, n_free, size;
- if (! f)
+ if (!f)
+ return format (s, "%=7s%=30s%=12s%=12s%=12s%=12s%=12s%=12s",
+ "Thread", "Name", "Index", "Size", "Alloc", "Free",
+ "#Alloc", "#Free");
+
+ size = sizeof (vlib_buffer_t) + f->n_data_bytes;
+ n_free = vec_len (f->aligned_buffers) + vec_len (f->unaligned_buffers);
+ bytes_alloc = size * f->n_alloc;
+ bytes_free = size * n_free;
+
+ s = format (s, "%7d%30s%12d%12d%=12U%=12U%=12d%=12d", threadnum,
+#else
+ uword bytes_alloc, bytes_free, n_free, size;
+
+ if (!f)
return format (s, "%=30s%=12s%=12s%=12s%=12s%=12s%=12s",
- "Name", "Index", "Size", "Alloc", "Free", "#Alloc", "#Free");
+ "Name", "Index", "Size", "Alloc", "Free", "#Alloc",
+ "#Free");
size = sizeof (vlib_buffer_t) + f->n_data_bytes;
n_free = vec_len (f->aligned_buffers) + vec_len (f->unaligned_buffers);
bytes_free = size * n_free;
s = format (s, "%30s%12d%12d%=12U%=12U%=12d%=12d",
+#endif
f->name, f->index, f->n_data_bytes,
format_memory_size, bytes_alloc,
- format_memory_size, bytes_free,
- f->n_alloc, n_free);
+ format_memory_size, bytes_free, f->n_alloc, n_free);
return s;
}
static clib_error_t *
show_buffers (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vlib_buffer_main_t * bm = vm->buffer_main;
- vlib_buffer_free_list_t * f;
+#if DPDK > 0
+ vlib_buffer_main_t *bm;
+ vlib_buffer_free_list_t *f;
+ vlib_main_t *curr_vm;
+ u32 vm_index = 0;
+
+ vlib_cli_output (vm, "%U", format_vlib_buffer_free_list, 0, 0);
+
+ do
+ {
+ curr_vm = vec_len (vlib_mains) ? vlib_mains[vm_index] : vm;
+ bm = curr_vm->buffer_main;
+
+ /* *INDENT-OFF* */
+ pool_foreach (f, bm->buffer_free_list_pool, ({
+ vlib_cli_output (vm, "%U", format_vlib_buffer_free_list, f, vm_index);
+ }));
+ /* *INDENT-ON* */
+
+ vm_index++;
+ }
+ while (vm_index < vec_len (vlib_mains));
+
+#else
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ vlib_buffer_free_list_t *f;
vlib_cli_output (vm, "%U", format_vlib_buffer_free_list, 0);
+ /* *INDENT-OFF* */
pool_foreach (f, bm->buffer_free_list_pool, ({
vlib_cli_output (vm, "%U", format_vlib_buffer_free_list, f);
}));
+/* *INDENT-ON* */
+#endif
return 0;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_buffers_command, static) = {
.path = "show buffers",
.short_help = "Show packet buffer allocation",
.function = show_buffers,
};
+/* *INDENT-ON* */
+
+#if DPDK > 0
+#if CLIB_DEBUG > 0
+
+u32 *vlib_buffer_state_validation_lock;
+uword *vlib_buffer_state_validation_hash;
+void *vlib_buffer_state_heap;
+
+static clib_error_t *
+buffer_state_validation_init (vlib_main_t * vm)
+{
+ void *oldheap;
+
+ vlib_buffer_state_heap = mheap_alloc (0, 10 << 20);
+
+ oldheap = clib_mem_set_heap (vlib_buffer_state_heap);
+
+ vlib_buffer_state_validation_hash = hash_create (0, sizeof (uword));
+ vec_validate_aligned (vlib_buffer_state_validation_lock, 0,
+ CLIB_CACHE_LINE_BYTES);
+ clib_mem_set_heap (oldheap);
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (buffer_state_validation_init);
+#endif
+#endif
+
+
+/** @endcond */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff