vec_free (name);
/* Decide how many worker threads we have */
- num_threads = 1 /* main thread */ + tm->n_eal_threads;
+ num_threads = 1 /* main thread */ + tm->n_threads;
/* Allocate per worker thread vectors */
vec_validate (fm->ipv4_buffers_per_worker, num_threads - 1);
libvlib_la_SOURCES = \
vlib/buffer.c \
+ vlib/buffer_serialize.c \
vlib/cli.c \
vlib/cli.h \
vlib/config.h \
*/
/**
- * @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)
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",
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;
}
return s;
}
-#if DPDK == 0
static u8 *
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)
return s;
}
-#if DPDK == 0
static u8 *
vlib_validate_buffer_helper (vlib_main_t * vm,
u32 bi,
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))
{
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,
is_free ? VLIB_BUFFER_KNOWN_FREE : VLIB_BUFFER_KNOWN_ALLOCATED);
}
}
-#endif
#define BUFFERS_PER_COPY (sizeof (vlib_copy_unit_t) / sizeof (u32))
{
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);
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;
}
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)
{
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. */
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;
fl->buffer_init_function (vm, fl, bi, n_this_chunk);
}
return n_alloc;
-#endif
}
always_inline uword
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,
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))
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,
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;
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 */
}
_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)
b->current_length);
}
}
-#endif
void
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]));
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 *
return b->data;
}
-#if DPDK == 0
void
vlib_packet_template_get_packet_helper (vlib_main_t * vm,
vlib_packet_template_t * t)
_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,
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;
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);
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;
}
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-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
#include <vppinfra/vector.h>
#include <vlib/error.h> /* for vlib_error_t */
-#if DPDK > 0
-#include <rte_config.h>
-#define VLIB_BUFFER_DATA_SIZE (2048)
-#define VLIB_BUFFER_PRE_DATA_SIZE RTE_PKTMBUF_HEADROOM
-#else
#include <vlib/config.h> /* for __PRE_DATA_SIZE */
-#define VLIB_BUFFER_DATA_SIZE (512)
+#define VLIB_BUFFER_DATA_SIZE (2048)
#define VLIB_BUFFER_PRE_DATA_SIZE __PRE_DATA_SIZE
-#endif
#if defined (CLIB_HAVE_VEC128) || defined (__aarch64__)
typedef u8x16 vlib_copy_unit_t;
uword buffer_init_function_opaque;
} __attribute__ ((aligned (16))) vlib_buffer_free_list_t;
+typedef struct
+{
+ u32 (*vlib_buffer_alloc_cb) (struct vlib_main_t * vm, u32 * buffers,
+ u32 n_buffers);
+ u32 (*vlib_buffer_alloc_from_free_list_cb) (struct vlib_main_t * vm,
+ u32 * buffers, u32 n_buffers,
+ u32 free_list_index);
+ void (*vlib_buffer_free_cb) (struct vlib_main_t * vm, u32 * buffers,
+ u32 n_buffers);
+ void (*vlib_buffer_free_no_next_cb) (struct vlib_main_t * vm, u32 * buffers,
+ u32 n_buffers);
+ void (*vlib_packet_template_init_cb) (struct vlib_main_t * vm, void *t,
+ void *packet_data,
+ uword n_packet_data_bytes,
+ uword
+ min_n_buffers_each_physmem_alloc,
+ u8 * name);
+ void (*vlib_buffer_delete_free_list_cb) (struct vlib_main_t * vm,
+ u32 free_list_index);
+} vlib_buffer_callbacks_t;
+
typedef struct
{
/* Buffer free callback, for subversive activities */
/* List of free-lists needing Blue Light Special announcements */
vlib_buffer_free_list_t **announce_list;
- /* Vector of rte_mempools per socket */
-#if DPDK == 1
- struct rte_mempool **pktmbuf_pools;
-#endif
+ /* Callbacks */
+ vlib_buffer_callbacks_t cb;
+ int extern_buffer_mgmt;
} vlib_buffer_main_t;
+void vlib_buffer_cb_init (struct vlib_main_t *vm);
+int vlib_buffer_cb_register (struct vlib_main_t *vm,
+ vlib_buffer_callbacks_t * cb);
+
typedef struct
{
struct vlib_main_t *vlib_main;
vec_len (s->overflow_buffer);
}
-#if DPDK > 0
-#define rte_mbuf_from_vlib_buffer(x) (((struct rte_mbuf *)x) - 1)
-#define vlib_buffer_from_rte_mbuf(x) ((vlib_buffer_t *)(x+1))
-#endif
-
/*
*/
} while (0)
#endif
-#if DPDK == 0
-
typedef enum
{
/* Index is unknown. */
u8 *vlib_validate_buffer (vlib_main_t * vm, u32 buffer_index,
uword follow_chain);
-#endif /* DPDK == 0 */
-
clib_error_t *vlib_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
unsigned socket_id);
@return - (u32) number of buffers actually allocated, may be
less than the number requested or zero
*/
-u32 vlib_buffer_alloc (vlib_main_t * vm, u32 * buffers, u32 n_buffers);
+always_inline u32
+vlib_buffer_alloc (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+
+ ASSERT (bm->cb.vlib_buffer_alloc_cb);
+
+ return bm->cb.vlib_buffer_alloc_cb (vm, buffers, n_buffers);
+}
always_inline u32
vlib_buffer_round_size (u32 size)
@return - (u32) number of buffers actually allocated, may be
less than the number requested or zero
*/
-u32 vlib_buffer_alloc_from_free_list (vlib_main_t * vm,
- u32 * buffers,
- u32 n_buffers, u32 free_list_index);
+always_inline 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;
+
+ ASSERT (bm->cb.vlib_buffer_alloc_from_free_list_cb);
+
+ return bm->cb.vlib_buffer_alloc_from_free_list_cb (vm, buffers, n_buffers,
+ free_list_index);
+}
/** \brief Free buffers
Frees the entire buffer chain for each buffer
@param n_buffers - (u32) number of buffers to free
*/
-void vlib_buffer_free (vlib_main_t * vm,
- /* pointer to first buffer */
- u32 * buffers,
- /* number of buffers to free */
- u32 n_buffers);
+always_inline void
+vlib_buffer_free (vlib_main_t * vm,
+ /* pointer to first buffer */
+ u32 * buffers,
+ /* number of buffers to free */
+ u32 n_buffers)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+
+ ASSERT (bm->cb.vlib_buffer_free_cb);
+
+ return bm->cb.vlib_buffer_free_cb (vm, buffers, n_buffers);
+}
/** \brief Free buffers, does not free the buffer chain for each buffer
@param n_buffers - (u32) number of buffers to free
*/
-void vlib_buffer_free_no_next (vlib_main_t * vm,
- /* pointer to first buffer */
- u32 * buffers,
- /* number of buffers to free */
- u32 n_buffers);
+always_inline void
+vlib_buffer_free_no_next (vlib_main_t * vm,
+ /* pointer to first buffer */
+ u32 * buffers,
+ /* number of buffers to free */
+ u32 n_buffers)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+
+ ASSERT (bm->cb.vlib_buffer_free_no_next_cb);
+
+ return bm->cb.vlib_buffer_free_no_next_cb (vm, buffers, n_buffers);
+}
/** \brief Free one buffer
Shorthand to free a single buffer chain.
/* Add/delete buffer free lists. */
u32 vlib_buffer_create_free_list (vlib_main_t * vm, u32 n_data_bytes,
char *fmt, ...);
-void vlib_buffer_delete_free_list (vlib_main_t * vm, u32 free_list_index);
+always_inline void
+vlib_buffer_delete_free_list (vlib_main_t * vm, u32 free_list_index)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+
+ ASSERT (bm->cb.vlib_buffer_delete_free_list_cb);
+
+ bm->cb.vlib_buffer_delete_free_list_cb (vm, free_list_index);
+}
/* Find already existing public free list with given size or create one. */
u32 vlib_buffer_get_or_create_free_list (vlib_main_t * vm, u32 n_data_bytes,
return fd;
}
-/*
- * vlib_buffer_chain_* functions provide a way to create long buffers.
- * When DPDK is enabled, the 'hidden' DPDK header is taken care of transparently.
- */
-
/* Initializes the buffer as an empty packet with no chained buffers. */
always_inline void
vlib_buffer_chain_init (vlib_buffer_t * first)
/* Vector of packet data. */
u8 *packet_data;
- /* Note: the next three fields are unused if DPDK == 1 */
-
/* Number of buffers to allocate in each call to physmem
allocator. */
u32 min_n_buffers_each_physmem_alloc;
--- /dev/null
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * buffer.c: allocate/free network buffers.
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <vlib/vlib.h>
+
+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;
+}
+
+/** @endcond */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
vlib_frame_t *f;
u32 n_vectors_in_frame;
- if (DPDK == 0 && CLIB_DEBUG > 0)
+ if (vm->buffer_main->extern_buffer_mgmt == 0 && CLIB_DEBUG > 0)
vlib_put_next_frame_validate (vm, r, next_index, n_vectors_left);
nf = vlib_node_runtime_get_next_frame (vm, r, next_index);
/* When in interrupt mode and vector rate crosses threshold switch to
polling mode. */
- if ((DPDK == 0 && dispatch_state == VLIB_NODE_STATE_INTERRUPT)
- || (DPDK == 0 && dispatch_state == VLIB_NODE_STATE_POLLING
+ if ((dispatch_state == VLIB_NODE_STATE_INTERRUPT)
+ || (dispatch_state == VLIB_NODE_STATE_POLLING
&& (node->flags
& VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE)))
{
vm->name = "VLIB";
vec_validate (vm->buffer_main, 0);
+ vlib_buffer_cb_init (vm);
if ((error = vlib_thread_init (vm)))
{
#include <vlib/threads.h>
#include <vlib/unix/cj.h>
-
-#if DPDK==1
-#include <rte_config.h>
-#include <rte_common.h>
-#include <rte_eal.h>
-#include <rte_launch.h>
-#include <rte_lcore.h>
-#endif
DECLARE_CJ_GLOBAL_LOG;
#define FRAME_QUEUE_NELTS 32
-
-#if DPDK==1
-/*
- * Weak definitions of DPDK symbols used in this file.
- * Needed for linking test programs without DPDK libs.
- */
-unsigned __thread __attribute__ ((weak)) RTE_PER_LCORE (_lcore_id);
-struct lcore_config __attribute__ ((weak)) lcore_config[];
-unsigned __attribute__ ((weak)) rte_socket_id ();
-int __attribute__ ((weak)) rte_eal_remote_launch ();
-#endif
u32
vl (void *p)
{
tm->cpu_socket_bitmap = clib_bitmap_set (0, 0, 1);
/* pin main thread to main_lcore */
-#if DPDK==0
- {
- cpu_set_t cpuset;
- CPU_ZERO (&cpuset);
- CPU_SET (tm->main_lcore, &cpuset);
- pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
- }
-#endif
+ if (tm->cb.vlib_thread_set_lcore_cb)
+ {
+ tm->cb.vlib_thread_set_lcore_cb (0, tm->main_lcore);
+ }
+ else
+ {
+ cpu_set_t cpuset;
+ CPU_ZERO (&cpuset);
+ CPU_SET (tm->main_lcore, &cpuset);
+ pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
+ }
/* as many threads as stacks... */
vec_validate_aligned (vlib_worker_threads, vec_len (vlib_thread_stacks) - 1,
return rv;
}
-static int
-vlib_launch_thread (void *fp, vlib_worker_thread_t * w, unsigned lcore_id)
+static clib_error_t *
+vlib_launch_thread_int (void *fp, vlib_worker_thread_t * w, unsigned lcore_id)
{
+ vlib_thread_main_t *tm = &vlib_thread_main;
void *(*fp_arg) (void *) = fp;
w->lcore_id = lcore_id;
-#if DPDK==1
- if (!w->registration->use_pthreads)
- if (rte_eal_remote_launch) /* do we have dpdk linked */
- return rte_eal_remote_launch (fp, (void *) w, lcore_id);
- else
- return -1;
+ if (tm->cb.vlib_launch_thread_cb && !w->registration->use_pthreads)
+ return tm->cb.vlib_launch_thread_cb (fp, (void *) w, lcore_id);
else
-#endif
{
- int ret;
pthread_t worker;
cpu_set_t cpuset;
CPU_ZERO (&cpuset);
CPU_SET (lcore_id, &cpuset);
- ret = pthread_create (&worker, NULL /* attr */ , fp_arg, (void *) w);
- if (ret == 0)
- return pthread_setaffinity_np (worker, sizeof (cpu_set_t), &cpuset);
- else
- return ret;
+ if (pthread_create (&worker, NULL /* attr */ , fp_arg, (void *) w))
+ return clib_error_return_unix (0, "pthread_create");
+
+ if (pthread_setaffinity_np (worker, sizeof (cpu_set_t), &cpuset))
+ return clib_error_return_unix (0, "pthread_setaffinity_np");
+
+ return 0;
}
}
for (i = 0; i < vec_len (tm->registrations); i++)
{
+ clib_error_t *err;
int j;
tr = tm->registrations[i];
for (j = 0; j < tr->count; j++)
{
w = vlib_worker_threads + worker_thread_index++;
- if (vlib_launch_thread (vlib_worker_thread_bootstrap_fn, w, 0) <
- 0)
- clib_warning ("Couldn't start '%s' pthread ", tr->name);
+ err = vlib_launch_thread_int (vlib_worker_thread_bootstrap_fn,
+ w, 0);
+ if (err)
+ clib_error_report (err);
}
}
else
{
uword c;
- /* *INDENT-OFF* */
- clib_bitmap_foreach (c, tr->coremask, ({
- w = vlib_worker_threads + worker_thread_index++;
- if (vlib_launch_thread (vlib_worker_thread_bootstrap_fn, w, c) < 0)
- clib_warning ("Couldn't start DPDK lcore %d", c);
-
- }));
-/* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ clib_bitmap_foreach (c, tr->coremask, ({
+ w = vlib_worker_threads + worker_thread_index++;
+ err = vlib_launch_thread_int (vlib_worker_thread_bootstrap_fn,
+ w, c);
+ if (err)
+ clib_error_report (err);
+ }));
+ /* *INDENT-ON* */
}
}
vlib_worker_thread_barrier_sync (vm);
{
tm->n_thread_stacks += tr->count;
tm->n_pthreads += tr->count * tr->use_pthreads;
- tm->n_eal_threads += tr->count * (tr->use_pthreads == 0);
+ tm->n_threads += tr->count * (tr->use_pthreads == 0);
tr = tr->next;
}
vlib_worker_thread_fn (void *arg)
{
vlib_worker_thread_t *w = (vlib_worker_thread_t *) arg;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_main_t *vm = vlib_get_main ();
ASSERT (vm->cpu_index == os_get_cpu_number ());
clib_time_init (&vm->clib_time);
clib_mem_set_heap (w->thread_mheap);
-#if DPDK > 0
/* Wait until the dpdk init sequence is complete */
- vlib_thread_main_t *tm = vlib_get_thread_main ();
- while (tm->worker_thread_release == 0)
+ while (tm->extern_thread_mgmt && tm->worker_thread_release == 0)
vlib_worker_thread_barrier_check ();
-#endif
vlib_worker_thread_internal (vm);
}
return (fqm - tm->frame_queue_mains);
}
+
+int
+vlib_thread_cb_register (struct vlib_main_t *vm, vlib_thread_callbacks_t * cb)
+{
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+
+ if (tm->extern_thread_mgmt)
+ return -1;
+
+ tm->cb.vlib_launch_thread_cb = cb->vlib_launch_thread_cb;
+ tm->extern_thread_mgmt = 1;
+ return 0;
+}
+
clib_error_t *
threads_init (vlib_main_t * vm)
{
SCHED_POLICY_N,
} sched_policy_t;
+typedef struct
+{
+ clib_error_t *(*vlib_launch_thread_cb) (void *fp, vlib_worker_thread_t * w,
+ unsigned lcore_id);
+ clib_error_t *(*vlib_thread_set_lcore_cb) (u32 thread, u16 lcore);
+} vlib_thread_callbacks_t;
+
typedef struct
{
/* Link list of registrations, built by constructors */
/* Number of pthreads */
u32 n_pthreads;
- /* Number of DPDK eal threads */
- u32 n_eal_threads;
+ /* Number of threads */
+ u32 n_threads;
/* Number of cores to skip, must match the core mask */
u32 skip_cores;
/* scheduling policy priority */
u32 sched_priority;
+ /* callbacks */
+ vlib_thread_callbacks_t cb;
+ int extern_thread_mgmt;
} vlib_thread_main_t;
extern vlib_thread_main_t vlib_thread_main;
return elt;
}
+int vlib_thread_cb_register (struct vlib_main_t *vm,
+ vlib_thread_callbacks_t * cb);
+
#endif /* included_vlib_threads_h */
/*
#include <vlib/threads.h>
#include <vlib/unix/unix.h>
-#if DPDK==1
-#include <rte_config.h>
-#include <rte_common.h>
-#include <rte_eal.h>
-#include <rte_launch.h>
-#include <rte_lcore.h>
-#endif
-
static u8 *
format_sched_policy_and_priority (u8 * s, va_list * args)
{
vec_free (p);
line = format (line, "%-7u%-7u%-7u%", lcore, core_id, socket_id);
-#if DPDK==1
- ASSERT (lcore <= RTE_MAX_LCORE);
- switch (lcore_config[lcore].state)
- {
- case WAIT:
- line = format (line, "wait");
- break;
- case RUNNING:
- line = format (line, "running");
- break;
- case FINISHED:
- line = format (line, "finished");
- break;
- default:
- line = format (line, "unknown");
- }
-#endif
}
else
{
unix_physmem_alloc_aligned (vlib_physmem_main_t * vpm, uword n_bytes,
uword alignment)
{
+ vlib_main_t *vm = vlib_get_main ();
physmem_main_t *pm = &physmem_main;
uword lo_offset, hi_offset;
uword *to_free = 0;
-#if DPDK > 0
- clib_warning ("unsafe alloc!");
-#endif
+ if (vm->buffer_main->extern_buffer_mgmt)
+ clib_warning ("unsafe alloc!");
/* IO memory is always at least cache aligned. */
alignment = clib_max (alignment, CLIB_CACHE_LINE_BYTES);
show_physmem (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
-#if DPDK > 0
- vlib_cli_output (vm, "Not supported with DPDK drivers.");
-#else
physmem_main_t *pm = &physmem_main;
+ if (vm->buffer_main->extern_buffer_mgmt)
+ {
+ vlib_cli_output (vm, "Not supported with external buffer management.");
+ return 0;
+ }
if (pm->heap)
vlib_cli_output (vm, "%U", format_mheap, pm->heap, /* verbose */ 1);
else
vlib_cli_output (vm, "No physmem allocated.");
-#endif
return 0;
}
########################################
if WITH_DPDK
libvnet_la_SOURCES += \
+ vnet/devices/dpdk/buffer.c \
vnet/devices/dpdk/dpdk_priv.h \
vnet/devices/dpdk/device.c \
vnet/devices/dpdk/format.c \
vnet/devices/dpdk/init.c \
vnet/devices/dpdk/node.c \
+ vnet/devices/dpdk/thread.c \
vnet/devices/dpdk/hqos.c \
vnet/devices/dpdk/cli.c \
vnet/devices/dpdk/dpdk_api.c
--- /dev/null
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * buffer.c: allocate/free network buffers.
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * @file
+ *
+ * Allocate/free network buffers.
+ */
+
+#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>
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/devices/dpdk/dpdk.h>
+#include <vnet/devices/dpdk/dpdk_priv.h>
+
+
+STATIC_ASSERT (VLIB_BUFFER_PRE_DATA_SIZE == RTE_PKTMBUF_HEADROOM,
+ "VLIB_BUFFER_PRE_DATA_SIZE must be equal to RTE_PKTMBUF_HEADROOM");
+
+#define BUFFERS_PER_COPY (sizeof (vlib_copy_unit_t) / sizeof (u32))
+
+/* Make sure we have at least given number of unaligned buffers. */
+static void
+fill_unaligned (vlib_main_t * vm,
+ vlib_buffer_free_list_t * free_list,
+ uword n_unaligned_buffers)
+{
+ word la = vec_len (free_list->aligned_buffers);
+ word lu = vec_len (free_list->unaligned_buffers);
+
+ /* Aligned come in aligned copy-sized chunks. */
+ ASSERT (la % BUFFERS_PER_COPY == 0);
+
+ ASSERT (la >= n_unaligned_buffers);
+
+ while (lu < n_unaligned_buffers)
+ {
+ /* Copy 4 buffers from end of aligned vector to unaligned vector. */
+ vec_add (free_list->unaligned_buffers,
+ free_list->aligned_buffers + la - BUFFERS_PER_COPY,
+ BUFFERS_PER_COPY);
+ la -= BUFFERS_PER_COPY;
+ lu += BUFFERS_PER_COPY;
+ }
+ _vec_len (free_list->aligned_buffers) = la;
+}
+
+/* After free aligned buffers may not contain even sized chunks. */
+static void
+trim_aligned (vlib_buffer_free_list_t * f)
+{
+ uword l, n_trim;
+
+ /* Add unaligned to aligned before trim. */
+ l = vec_len (f->unaligned_buffers);
+ if (l > 0)
+ {
+ vec_add_aligned (f->aligned_buffers, f->unaligned_buffers, l,
+ /* align */ sizeof (vlib_copy_unit_t));
+
+ _vec_len (f->unaligned_buffers) = 0;
+ }
+
+ /* Remove unaligned buffers from end of aligned vector and save for next trim. */
+ l = vec_len (f->aligned_buffers);
+ n_trim = l % BUFFERS_PER_COPY;
+ if (n_trim)
+ {
+ /* Trim aligned -> unaligned. */
+ vec_add (f->unaligned_buffers, f->aligned_buffers + l - n_trim, n_trim);
+
+ /* Remove from aligned. */
+ _vec_len (f->aligned_buffers) = l - n_trim;
+ }
+}
+
+static void
+merge_free_lists (vlib_buffer_free_list_t * dst,
+ vlib_buffer_free_list_t * src)
+{
+ uword l;
+ u32 *d;
+
+ trim_aligned (src);
+ trim_aligned (dst);
+
+ l = vec_len (src->aligned_buffers);
+ if (l > 0)
+ {
+ vec_add2_aligned (dst->aligned_buffers, d, l,
+ /* align */ sizeof (vlib_copy_unit_t));
+ clib_memcpy (d, src->aligned_buffers, l * sizeof (d[0]));
+ vec_free (src->aligned_buffers);
+ }
+
+ l = vec_len (src->unaligned_buffers);
+ if (l > 0)
+ {
+ vec_add (dst->unaligned_buffers, src->unaligned_buffers, l);
+ vec_free (src->unaligned_buffers);
+ }
+}
+
+always_inline u32
+dpdk_buffer_get_free_list_with_size (vlib_main_t * vm, u32 size)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+
+ size = vlib_buffer_round_size (size);
+ uword *p = hash_get (bm->free_list_by_size, size);
+ return p ? p[0] : ~0;
+}
+
+static void
+del_free_list (vlib_main_t * vm, vlib_buffer_free_list_t * f)
+{
+ u32 i;
+ 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);
+ vec_free (f->unaligned_buffers);
+ vec_free (f->aligned_buffers);
+}
+
+/* Add buffer free list. */
+static void
+dpdk_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;
+ u32 merge_index;
+ int i;
+
+ ASSERT (os_get_cpu_number () == 0);
+
+ f = vlib_buffer_get_free_list (vm, free_list_index);
+
+ merge_index = dpdk_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);
+ }
+}
+
+/* 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)
+{
+ dpdk_main_t *dm = &dpdk_main;
+ vlib_buffer_t *b;
+ int n, i;
+ u32 bi;
+ u32 n_remaining = 0, n_alloc = 0;
+ unsigned socket_id = rte_socket_id ();
+ struct rte_mempool *rmp = dm->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;
+}
+
+always_inline uword
+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,
+ u32 * alloc_buffers, u32 n_alloc_buffers)
+{
+ u32 *dst, *u_src;
+ uword u_len, n_left;
+ uword n_unaligned_start, n_unaligned_end, n_filled;
+
+ n_left = n_alloc_buffers;
+ dst = alloc_buffers;
+ n_unaligned_start = ((BUFFERS_PER_COPY - copy_alignment (dst))
+ & (BUFFERS_PER_COPY - 1));
+
+ 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;
+
+ if (n_unaligned_start >= n_left)
+ {
+ n_unaligned_start = n_left;
+ n_unaligned_end = 0;
+ }
+ else
+ n_unaligned_end = copy_alignment (dst + n_alloc_buffers);
+
+ fill_unaligned (vm, free_list, n_unaligned_start + n_unaligned_end);
+
+ u_len = vec_len (free_list->unaligned_buffers);
+ u_src = free_list->unaligned_buffers + u_len - 1;
+
+ if (n_unaligned_start)
+ {
+ uword n_copy = n_unaligned_start;
+ if (n_copy > n_left)
+ n_copy = n_left;
+ n_left -= n_copy;
+
+ while (n_copy > 0)
+ {
+ *dst++ = *u_src--;
+ n_copy--;
+ u_len--;
+ }
+
+ /* Now dst should be aligned. */
+ if (n_left > 0)
+ ASSERT (pointer_to_uword (dst) % sizeof (vlib_copy_unit_t) == 0);
+ }
+
+ /* Aligned copy. */
+ {
+ 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 ();
+
+ n_copy = n_left / BUFFERS_PER_COPY;
+ n_left = n_left % BUFFERS_PER_COPY;
+
+ /* Remove buffers from aligned free list. */
+ _vec_len (free_list->aligned_buffers) -= n_copy * BUFFERS_PER_COPY;
+
+ s = (vlib_copy_unit_t *) vec_end (free_list->aligned_buffers);
+ d = (vlib_copy_unit_t *) dst;
+
+ /* Fast path loop. */
+ while (n_copy >= 4)
+ {
+ d[0] = s[0];
+ d[1] = s[1];
+ d[2] = s[2];
+ d[3] = s[3];
+ n_copy -= 4;
+ s += 4;
+ d += 4;
+ }
+
+ while (n_copy >= 1)
+ {
+ d[0] = s[0];
+ n_copy -= 1;
+ s += 1;
+ d += 1;
+ }
+
+ dst = (void *) d;
+ }
+
+ /* Unaligned copy. */
+ ASSERT (n_unaligned_end == n_left);
+ while (n_left > 0)
+ {
+ *dst++ = *u_src--;
+ n_left--;
+ u_len--;
+ }
+
+ if (!free_list->unaligned_buffers)
+ ASSERT (u_len == 0);
+ else
+ _vec_len (free_list->unaligned_buffers) = u_len;
+
+ 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
+dpdk_buffer_alloc (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
+{
+ vlib_buffer_main_t *bm = vm->buffer_main;
+
+ return alloc_from_free_list
+ (vm,
+ pool_elt_at_index (bm->buffer_free_list_pool,
+ VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX),
+ buffers, n_buffers);
+}
+
+
+u32
+dpdk_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;
+ 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,
+ u32 buffer_index, u8 do_init)
+{
+ 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));
+}
+
+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;
+ u32 i;
+
+ *index = i = b->free_list_index;
+ return pool_elt_at_index (bm->buffer_free_list_pool, i);
+}
+
+static_always_inline void
+vlib_buffer_free_inline (vlib_main_t * vm,
+ u32 * buffers, u32 n_buffers, u32 follow_buffer_next)
+{
+ 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;
+ }
+}
+
+static void
+dpdk_buffer_free (vlib_main_t * vm, u32 * buffers, u32 n_buffers)
+{
+ vlib_buffer_free_inline (vm, buffers, n_buffers, /* follow_buffer_next */
+ 1);
+}
+
+static void
+dpdk_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);
+}
+
+static void
+dpdk_packet_template_init (vlib_main_t * vm,
+ void *vt,
+ void *packet_data,
+ uword n_packet_data_bytes,
+ uword min_n_buffers_each_physmem_alloc, u8 * name)
+{
+ vlib_packet_template_t *t = (vlib_packet_template_t *) vt;
+
+ 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);
+}
+
+clib_error_t *
+vlib_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
+ unsigned socket_id)
+{
+ dpdk_main_t *dm = &dpdk_main;
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+ struct rte_mempool *rmp;
+ int i;
+
+ vec_validate_aligned (dm->pktmbuf_pools, socket_id, CLIB_CACHE_LINE_BYTES);
+
+ /* pool already exists, nothing to do */
+ if (dm->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)
+ {
+ dm->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 (dm->pktmbuf_pools); i++)
+ {
+ if (dm->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);
+ dm->pktmbuf_pools[socket_id] = dm->pktmbuf_pools[i];
+ return 0;
+ }
+ }
+
+ return clib_error_return (0, "failed to allocate mempool on socket %u",
+ socket_id);
+}
+
+#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
+
+static vlib_buffer_callbacks_t callbacks = {
+ .vlib_buffer_alloc_cb = &dpdk_buffer_alloc,
+ .vlib_buffer_alloc_from_free_list_cb = &dpdk_buffer_alloc_from_free_list,
+ .vlib_buffer_free_cb = &dpdk_buffer_free,
+ .vlib_buffer_free_no_next_cb = &dpdk_buffer_free_no_next,
+ .vlib_packet_template_init_cb = &dpdk_packet_template_init,
+ .vlib_buffer_delete_free_list_cb = &dpdk_buffer_delete_free_list,
+};
+
+static clib_error_t *
+dpdk_buffer_init (vlib_main_t * vm)
+{
+ vlib_buffer_cb_register (vm, &callbacks);
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (dpdk_buffer_init);
+
+/** @endcond */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
struct rte_mempool *rmp;
int i;
- for (i = 0; i < vec_len (vm->buffer_main->pktmbuf_pools); i++)
+ for (i = 0; i < vec_len (dpdk_main.pktmbuf_pools); i++)
{
- rmp = vm->buffer_main->pktmbuf_pools[i];
+ rmp = dpdk_main.pktmbuf_pools[i];
if (rmp)
{
unsigned count = rte_mempool_avail_count (rmp);
struct rte_mbuf *
dpdk_replicate_packet_mb (vlib_buffer_t * b)
{
- vlib_main_t *vm = vlib_get_main ();
- vlib_buffer_main_t *bm = vm->buffer_main;
+ dpdk_main_t *dm = &dpdk_main;
struct rte_mbuf **mbufs = 0, *s, *d;
u8 nb_segs;
unsigned socket_id = rte_socket_id ();
int i;
- ASSERT (bm->pktmbuf_pools[socket_id]);
+ ASSERT (dm->pktmbuf_pools[socket_id]);
s = rte_mbuf_from_vlib_buffer (b);
nb_segs = s->nb_segs;
vec_validate (mbufs, nb_segs - 1);
- if (rte_pktmbuf_alloc_bulk (bm->pktmbuf_pools[socket_id], mbufs, nb_segs))
+ if (rte_pktmbuf_alloc_bulk (dm->pktmbuf_pools[socket_id], mbufs, nb_segs))
{
vec_free (mbufs);
return 0;
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
dpdk_config_main_t *conf;
+
+ /* mempool */
+ struct rte_mempool **pktmbuf_pools;
} dpdk_main_t;
dpdk_main_t dpdk_main;
* limitations under the License.
*/
+#define rte_mbuf_from_vlib_buffer(x) (((struct rte_mbuf *)x) - 1)
+#define vlib_buffer_from_rte_mbuf(x) ((vlib_buffer_t *)(x+1))
+
#define DPDK_NB_RX_DESC_DEFAULT 1024
#define DPDK_NB_TX_DESC_DEFAULT 1024
#define DPDK_NB_RX_DESC_VIRTIO 256
clib_error_t *
dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd)
{
- vlib_main_t *vm = vlib_get_main ();
- vlib_buffer_main_t *bm = vm->buffer_main;
int rv;
int j;
rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
xd->cpu_socket, 0,
- bm->
+ dm->
pktmbuf_pools[xd->cpu_socket_id_by_queue
[j]]);
if (rv < 0)
rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
SOCKET_ID_ANY, 0,
- bm->
+ dm->
pktmbuf_pools[xd->cpu_socket_id_by_queue
[j]]);
if (rv < 0)
--- /dev/null
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#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>
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/devices/dpdk/dpdk.h>
+#include <vnet/devices/dpdk/dpdk_priv.h>
+
+static clib_error_t *
+dpdk_launch_thread (void *fp, vlib_worker_thread_t * w, unsigned lcore_id)
+{
+ int r;
+ r = rte_eal_remote_launch (fp, (void *) w, lcore_id);
+ if (r)
+ return clib_error_return (0, "Failed to launch thread %u", lcore_id);
+ return 0;
+}
+
+static clib_error_t *
+dpdk_thread_set_lcore (u32 thread, u16 lcore)
+{
+ return 0;
+}
+
+static vlib_thread_callbacks_t callbacks = {
+ .vlib_launch_thread_cb = &dpdk_launch_thread,
+ .vlib_thread_set_lcore_cb = &dpdk_thread_set_lcore,
+};
+
+static clib_error_t *
+dpdk_thread_init (vlib_main_t * vm)
+{
+ vlib_thread_cb_register (vm, &callbacks);
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (dpdk_thread_init);
+
+/** @endcond */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#include <vnet/pg/pg.h>
#include <vnet/sr/sr.h>
#include <vnet/devices/dpdk/dpdk.h>
+#include <vnet/devices/dpdk/dpdk_priv.h>
#include <vnet/ip/ip.h>
#include <vnet/fib/ip6_fib.h>
sr_replicate_node_fn (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
+ dpdk_main_t *dm = &dpdk_main;
u32 n_left_from, *from, *to_next;
sr_replicate_next_t next_index;
int pkts_replicated = 0;
int no_buffer_drops = 0;
vlib_buffer_free_list_t *fl;
unsigned socket_id = rte_socket_id ();
- vlib_buffer_main_t *bm = vm->buffer_main;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
vlib_buffer_t *clone0_c, *clone_b0;
t0 = vec_elt_at_index (sm->tunnels, pol0->tunnel_indices[i]);
- hdr_mb0 = rte_pktmbuf_alloc (bm->pktmbuf_pools[socket_id]);
+ hdr_mb0 = rte_pktmbuf_alloc (dm->pktmbuf_pools[socket_id]);
if (i < (num_replicas - 1))
{
/* Not the last tunnel to process */
clone0 = rte_pktmbuf_clone
- (orig_mb0, bm->pktmbuf_pools[socket_id]);
+ (orig_mb0, dm->pktmbuf_pools[socket_id]);
if (clone0 == 0)
goto clone_fail;
nb_seg = 0;
Code Review / vpp.git / commitdiff