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authorDamjan Marion <damarion@cisco.com>2017-01-04 13:19:27 +0100
committerDave Barach <openvpp@barachs.net>2017-01-14 14:17:03 +0000
commit878c609889dcdc58538d40d8b3f662320f88573d (patch)
treefa241dadbdd1db60b47fe3f077ab3392716690d5 /src/vlib/buffer.c
parenteea28d78a3173341727aafee4c414bcb01001339 (diff)
vlib: add buffer and thread callbacks
Change-Id: I8e2e8f94a884ab2f9909d0c83ba00edd38cdab77 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/buffer.c')
-rw-r--r--src/vlib/buffer.c736
1 files changed, 55 insertions, 681 deletions
diff --git a/src/vlib/buffer.c b/src/vlib/buffer.c
index 4bf6d125b21..0b0e6054ec2 100644
--- a/src/vlib/buffer.c
+++ b/src/vlib/buffer.c
@@ -38,50 +38,13 @@
*/
/**
- * @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>
-#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)
@@ -103,7 +66,6 @@ u8 *
format_vlib_buffer (u8 * s, va_list * args)
{
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",
@@ -126,18 +88,6 @@ format_vlib_buffer (u8 * s, va_list * args)
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;
}
@@ -153,7 +103,6 @@ format_vlib_buffer_and_data (u8 * s, va_list * args)
return s;
}
-#if DPDK == 0
static u8 *
format_vlib_buffer_known_state (u8 * s, va_list * args)
{
@@ -181,7 +130,6 @@ format_vlib_buffer_known_state (u8 * s, va_list * args)
return format (s, "%s", t);
}
-#endif
u8 *
format_vlib_buffer_contents (u8 * s, va_list * va)
@@ -200,7 +148,6 @@ format_vlib_buffer_contents (u8 * s, va_list * va)
return s;
}
-#if DPDK == 0
static u8 *
vlib_validate_buffer_helper (vlib_main_t * vm,
u32 bi,
@@ -217,11 +164,10 @@ vlib_validate_buffer_helper (vlib_main_t * vm,
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);
-#endif
if (follow_buffer_next && (b->flags & VLIB_BUFFER_NEXT_PRESENT))
{
@@ -311,14 +257,12 @@ done:
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
+static void __attribute__ ((unused))
vlib_buffer_validate_alloc_free (vlib_main_t * vm,
u32 * buffers,
uword n_buffers,
@@ -359,7 +303,6 @@ vlib_buffer_validate_alloc_free (vlib_main_t * vm,
is_free ? VLIB_BUFFER_KNOWN_FREE : VLIB_BUFFER_KNOWN_ALLOCATED);
}
}
-#endif
#define BUFFERS_PER_COPY (sizeof (vlib_copy_unit_t) / sizeof (u32))
@@ -463,7 +406,6 @@ vlib_buffer_create_free_list_helper (vlib_main_t * vm,
{
vlib_buffer_main_t *bm = vm->buffer_main;
vlib_buffer_free_list_t *f;
-#if DPDK > 0
int i;
ASSERT (os_get_cpu_number () == 0);
@@ -519,47 +461,6 @@ vlib_buffer_create_free_list_helper (vlib_main_t * vm,
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;
- }
-
- 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 = 256;
- 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);
- }
-#endif
return f->index;
}
@@ -609,50 +510,30 @@ static void
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)
+vlib_buffer_delete_free_list_internal (vlib_main_t * vm, u32 free_list_index)
{
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);
+ 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)
{
@@ -674,26 +555,6 @@ vlib_buffer_delete_free_list (vlib_main_t * vm, u32 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);
- 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);
-#endif
}
/* Make sure free list has at least given number of free buffers. */
@@ -701,63 +562,6 @@ static uword
fill_free_list (vlib_main_t * vm,
vlib_buffer_free_list_t * fl, uword min_free_buffers)
{
-#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;
@@ -824,7 +628,6 @@ fill_free_list (vlib_main_t * vm,
fl->buffer_init_function (vm, fl, bi, n_this_chunk);
}
return n_alloc;
-#endif
}
always_inline uword
@@ -833,6 +636,7 @@ copy_alignment (u32 * x)
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,
@@ -842,10 +646,6 @@ alloc_from_free_list (vlib_main_t * vm,
uword u_len, n_left;
uword n_unaligned_start, n_unaligned_end, n_filled;
-#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))
@@ -945,25 +745,21 @@ alloc_from_free_list (vlib_main_t * vm,
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);
-#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)
+static u32
+vlib_buffer_alloc_internal (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
{
vlib_buffer_main_t *bm = vm->buffer_main;
-#if DPDK == 0
- ASSERT (os_get_cpu_number () == 0);
-#endif
return alloc_from_free_list
(vm,
@@ -972,10 +768,10 @@ vlib_buffer_alloc (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
buffers, n_buffers);
}
-u32
-vlib_buffer_alloc_from_free_list (vlib_main_t * vm,
- u32 * buffers,
- u32 n_buffers, u32 free_list_index)
+static u32
+vlib_buffer_alloc_from_free_list_internal (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;
@@ -1016,81 +812,10 @@ vlib_set_buffer_free_callback (vlib_main_t * vm, void *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)
-{
-}
-
-#endif
static_always_inline void
vlib_buffer_free_inline (vlib_main_t * vm,
u32 * buffers, u32 n_buffers, u32 follow_buffer_next)
{
-#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 */
@@ -1315,26 +1040,25 @@ again:
}
_vec_len (announce_list) = 0;
}
-#endif
}
-void
-vlib_buffer_free (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
+static void
+vlib_buffer_free_internal (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
{
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)
+static void
+vlib_buffer_free_no_next_internal (vlib_main_t * vm, u32 * buffers,
+ u32 n_buffers)
{
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
+static void __attribute__ ((unused))
vlib_packet_template_buffer_init (vlib_main_t * vm,
vlib_buffer_free_list_t * fl,
u32 * buffers, u32 n_buffers)
@@ -1352,7 +1076,6 @@ vlib_packet_template_buffer_init (vlib_main_t * vm,
b->current_length);
}
}
-#endif
void
vlib_packet_template_init (vlib_main_t * vm,
@@ -1362,28 +1085,22 @@ vlib_packet_template_init (vlib_main_t * vm,
uword min_n_buffers_each_physmem_alloc,
char *fmt, ...)
{
-#if DPDK > 0
+ vlib_buffer_main_t *bm = vm->buffer_main;
va_list va;
__attribute__ ((unused)) u8 *name;
+ vlib_buffer_free_list_t *fl;
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);
+ if (bm->cb.vlib_packet_template_init_cb)
+ bm->cb.vlib_packet_template_init_cb (vm, (void *) t, packet_data,
+ n_packet_data_bytes,
+ min_n_buffers_each_physmem_alloc,
+ name);
- 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);
- va_end (va);
+ vlib_worker_thread_barrier_sync (vm);
memset (t, 0, sizeof (t[0]));
@@ -1406,7 +1123,7 @@ vlib_packet_template_init (vlib_main_t * vm,
fl->buffer_init_template.current_data = 0;
fl->buffer_init_template.current_length = n_packet_data_bytes;
fl->buffer_init_template.flags = 0;
-#endif
+ vlib_worker_thread_barrier_release (vm);
}
void *
@@ -1429,7 +1146,6 @@ vlib_packet_template_get_packet (vlib_main_t * vm,
return b->data;
}
-#if DPDK == 0
void
vlib_packet_template_get_packet_helper (vlib_main_t * vm,
vlib_packet_template_t * t)
@@ -1447,7 +1163,6 @@ vlib_packet_template_get_packet_helper (vlib_main_t * vm,
_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,
@@ -1541,328 +1256,11 @@ vlib_buffer_chain_append_data_with_alloc (vlib_main_t * vm,
return copied;
}
-#if DPDK > 0
-clib_error_t *
-vlib_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
- unsigned socket_id)
-{
- 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)
-{
- vlib_main_t *vm;
- vlib_serialize_buffer_main_t *sm;
- uword n, n_bytes_to_write;
- 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 *);
- 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)
- {
- 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);
-
- sm->first_buffer = sm->last_buffer = ~0;
- sm->tx.n_total_data_bytes = 0;
- }
-
- else if (n_bytes_to_write == 0 && s->n_buffer_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);
- if (n != 1)
- 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);
- }
-
- 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);
- if (n != 1)
- 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;
- prev->flags |= VLIB_BUFFER_NEXT_PRESENT;
- }
-
- if (sm->last_buffer != ~0)
- {
- last = vlib_get_buffer (vm, sm->last_buffer);
- s->buffer = vlib_buffer_get_current (last);
- s->current_buffer_index = 0;
- ASSERT (last->current_data == s->current_buffer_index);
- }
-}
-
-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;
-
- 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))
- return;
-
- if (sm->last_buffer != ~0)
- {
- last = vlib_get_buffer (vm, sm->last_buffer);
-
- if (last->flags & VLIB_BUFFER_NEXT_PRESENT)
- sm->last_buffer = last->next_buffer;
- else
- {
- vlib_buffer_free (vm, &sm->first_buffer, /* count */ 1);
- sm->first_buffer = sm->last_buffer = ~0;
- }
- }
-
- if (sm->last_buffer == ~0)
- {
- 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);
- }
-
- clib_fifo_sub1 (sm->rx.buffer_fifo, sm->first_buffer);
- sm->last_buffer = sm->first_buffer;
- }
-
- ASSERT (sm->last_buffer != ~0);
-
- last = vlib_get_buffer (vm, sm->last_buffer);
- s->current_buffer_index = 0;
- s->buffer = vlib_buffer_get_current (last);
- s->n_buffer_bytes = last->current_length;
-}
-
-static void
-serialize_open_vlib_helper (serialize_main_t * m,
- vlib_main_t * vm,
- 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;
- memset (m, 0, sizeof (m[0]));
- m->stream.overflow_buffer = save;
- if (save)
- _vec_len (save) = 0;
- }
-
- sm->first_buffer = sm->last_buffer = ~0;
- if (is_read)
- clib_fifo_reset (sm->rx.buffer_fifo);
- else
- sm->tx.n_total_data_bytes = 0;
- sm->vlib_main = vm;
- m->header.data_function = is_read ? vlib_serialize_rx : vlib_serialize_tx;
- 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
-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)
-{
- 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;
-
- if (vec_len (s->overflow_buffer) > 0)
- {
- sm->last_buffer
- = vlib_buffer_add_data (sm->vlib_main, sm->tx.free_list_index,
- sm->last_buffer == ~0 ? 0 : sm->last_buffer,
- s->overflow_buffer,
- vec_len (s->overflow_buffer));
- _vec_len (s->overflow_buffer) = 0;
- }
-
- return sm->first_buffer;
-}
-
-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 *);
- if (sm->first_buffer != ~0)
- vlib_buffer_free_one (sm->vlib_main, sm->first_buffer);
- clib_fifo_reset (sm->rx.buffer_fifo);
- if (m->stream.overflow_buffer)
- _vec_len (m->stream.overflow_buffer) = 0;
-}
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 *);
-#if DPDK > 0
u32 threadnum = va_arg (*va, u32);
uword bytes_alloc, bytes_free, n_free, size;
@@ -1877,21 +1275,6 @@ format_vlib_buffer_free_list (u8 * s, va_list * va)
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");
-
- 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, "%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);
@@ -1903,7 +1286,6 @@ static clib_error_t *
show_buffers (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
-#if DPDK > 0
vlib_buffer_main_t *bm;
vlib_buffer_free_list_t *f;
vlib_main_t *curr_vm;
@@ -1926,18 +1308,6 @@ show_buffers (vlib_main_t * vm,
}
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;
}
@@ -1949,34 +1319,38 @@ VLIB_CLI_COMMAND (show_buffers_command, static) = {
};
/* *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
+vlib_buffer_cb_init (struct 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_main_t *bm = vm->buffer_main;
+ bm->cb.vlib_buffer_alloc_cb = &vlib_buffer_alloc_internal;
+ bm->cb.vlib_buffer_alloc_from_free_list_cb =
+ &vlib_buffer_alloc_from_free_list_internal;
+ bm->cb.vlib_buffer_free_cb = &vlib_buffer_free_internal;
+ bm->cb.vlib_buffer_free_no_next_cb = &vlib_buffer_free_no_next_internal;
+ bm->cb.vlib_buffer_delete_free_list_cb =
+ &vlib_buffer_delete_free_list_internal;
+ bm->extern_buffer_mgmt = 0;
+}
- 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);
+int
+vlib_buffer_cb_register (struct vlib_main_t *vm, vlib_buffer_callbacks_t * cb)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+ if (bm->extern_buffer_mgmt)
+ return -1;
+
+#define _(x) bm->cb.x = cb->x
+ _(vlib_buffer_alloc_cb);
+ _(vlib_buffer_alloc_from_free_list_cb);
+ _(vlib_buffer_free_cb);
+ _(vlib_buffer_free_no_next_cb);
+ _(vlib_buffer_delete_free_list_cb);
+#undef _
+ bm->extern_buffer_mgmt = 1;
return 0;
}
-VLIB_INIT_FUNCTION (buffer_state_validation_init);
-#endif
-#endif
-
-
/** @endcond */
/*
* fd.io coding-style-patch-verification: ON