* Allocate/free network buffers.
*/
+#include <unistd.h>
+#include <linux/vfio.h>
+#include <sys/ioctl.h>
+
#include <rte_config.h>
#include <rte_common.h>
#include <rte_version.h>
#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <vlib/pci/pci.h>
+#include <vlib/linux/vfio.h>
#include <vnet/vnet.h>
#include <dpdk/device/dpdk.h>
#include <dpdk/device/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");
-static struct rte_mbuf ***mbuf_pending_free_list = 0;
+typedef struct
+{
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+ struct rte_mbuf **mbuf_alloc_list;
+} dpdk_buffer_per_thread_data;
+
+typedef struct
+{
+ int vfio_container_fd;
+ dpdk_buffer_per_thread_data *ptd;
+} dpdk_buffer_main_t;
+
+dpdk_buffer_main_t dpdk_buffer_main;
static_always_inline void
-dpdk_rte_pktmbuf_free (vlib_main_t * vm, vlib_buffer_t * b)
+dpdk_rte_pktmbuf_free (vlib_main_t * vm, u32 thread_index, vlib_buffer_t * b,
+ int maybe_next)
{
- vlib_buffer_t *hb = b;
struct rte_mbuf *mb;
u32 next, flags;
- mb = rte_mbuf_from_vlib_buffer (hb);
- static struct rte_mempool *last_pool = 0;
- static u8 last_buffer_pool_index;
next:
flags = b->flags;
b->n_add_refs = 0;
}
- mb = rte_pktmbuf_prefree_seg (mb);
- if (mb)
- {
- if (mb->pool != last_pool)
- {
- last_pool = mb->pool;
- dpdk_mempool_private_t *privp = rte_mempool_get_priv (last_pool);
- last_buffer_pool_index = privp->buffer_pool_index;
- vec_validate_aligned (mbuf_pending_free_list,
- last_buffer_pool_index,
- CLIB_CACHE_LINE_BYTES);
- }
- vec_add1 (mbuf_pending_free_list[last_buffer_pool_index], mb);
- }
+ if ((mb = rte_pktmbuf_prefree_seg (mb)))
+ rte_mempool_put (mb->pool, mb);
- if (flags & VLIB_BUFFER_NEXT_PRESENT)
+ if (maybe_next && (flags & VLIB_BUFFER_NEXT_PRESENT))
{
b = vlib_get_buffer (vm, next);
goto next;
}
}
-#ifndef CLIB_MULTIARCH_VARIANT
+#ifndef CLIB_MARCH_VARIANT
static void
del_free_list (vlib_main_t * vm, vlib_buffer_free_list_t * f)
{
u32 i;
vlib_buffer_t *b;
+ u32 thread_index = vlib_get_thread_index ();
for (i = 0; i < vec_len (f->buffers); i++)
{
b = vlib_get_buffer (vm, f->buffers[i]);
- dpdk_rte_pktmbuf_free (vm, b);
+ dpdk_rte_pktmbuf_free (vm, thread_index, b, 1);
}
vec_free (f->name);
vec_free (f->buffers);
+ /* Poison it. */
+ memset (f, 0xab, sizeof (f[0]));
}
/* Add buffer free list. */
static void
-dpdk_buffer_delete_free_list (vlib_main_t * vm, u32 free_list_index)
+dpdk_buffer_delete_free_list (vlib_main_t * vm,
+ vlib_buffer_free_list_index_t free_list_index)
{
- vlib_buffer_main_t *bm = vm->buffer_main;
vlib_buffer_free_list_t *f;
- u32 merge_index;
int i;
ASSERT (vlib_get_thread_index () == 0);
f = vlib_buffer_get_free_list (vm, free_list_index);
- merge_index = vlib_buffer_get_free_list_with_size (vm, f->n_data_bytes);
- if (merge_index != ~0 && merge_index != free_list_index)
- {
- vlib_buffer_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);
+ pool_put (vm->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);
+ vlib_main_t *wvm = vlib_mains[i];
+ f = vlib_buffer_get_free_list (vlib_mains[i], free_list_index);
+ del_free_list (wvm, f);
+ pool_put (wvm->buffer_free_list_pool, f);
}
}
#endif
/* Make sure free list has at least given number of free buffers. */
-static uword
-fill_free_list (vlib_main_t * vm,
- vlib_buffer_free_list_t * fl, uword min_free_buffers)
+uword
+CLIB_MULTIARCH_FN (dpdk_buffer_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 *b0, *b1, *b2, *b3;
- int n, i;
- u32 bi0, bi1, bi2, bi3;
+ dpdk_buffer_main_t *dbm = &dpdk_buffer_main;
+ struct rte_mbuf **mb;
+ uword n_left, first;
+ word n_alloc;
unsigned socket_id = rte_socket_id ();
+ u32 thread_index = vlib_get_thread_index ();
+ dpdk_buffer_per_thread_data *d = vec_elt_at_index (dbm->ptd, thread_index);
struct rte_mempool *rmp = dm->pktmbuf_pools[socket_id];
dpdk_mempool_private_t *privp = rte_mempool_get_priv (rmp);
- struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
vlib_buffer_t bt;
+ u32 *bi;
/* Too early? */
if (PREDICT_FALSE (rmp == 0))
return 0;
/* Already have enough free buffers on free list? */
- n = min_free_buffers - vec_len (fl->buffers);
- if (n <= 0)
+ n_alloc = min_free_buffers - vec_len (fl->buffers);
+ if (n_alloc <= 0)
return min_free_buffers;
/* Always allocate round number of buffers. */
- n = round_pow2 (n, CLIB_CACHE_LINE_BYTES / sizeof (u32));
+ n_alloc = round_pow2 (n_alloc, CLIB_CACHE_LINE_BYTES / sizeof (u32));
/* Always allocate new buffers in reasonably large sized chunks. */
- n = clib_max (n, fl->min_n_buffers_each_physmem_alloc);
+ n_alloc = clib_max (n_alloc, fl->min_n_buffers_each_alloc);
- vec_validate_aligned (vm->mbuf_alloc_list, n - 1, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (d->mbuf_alloc_list, n_alloc - 1,
+ CLIB_CACHE_LINE_BYTES);
- if (rte_mempool_get_bulk (rmp, vm->mbuf_alloc_list, n) < 0)
+ if (rte_mempool_get_bulk (rmp, (void *) d->mbuf_alloc_list, n_alloc) < 0)
return 0;
memset (&bt, 0, sizeof (vlib_buffer_t));
vlib_buffer_init_for_free_list (&bt, fl);
bt.buffer_pool_index = privp->buffer_pool_index;
- _vec_len (vm->mbuf_alloc_list) = n;
-
- i = 0;
- int f = vec_len (fl->buffers);
- vec_resize_aligned (fl->buffers, n, CLIB_CACHE_LINE_BYTES);
-
- while (i < (n - 7))
- {
- vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf
- (vm->mbuf_alloc_list[i + 4]), STORE);
- vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf
- (vm->mbuf_alloc_list[i + 5]), STORE);
- vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf
- (vm->mbuf_alloc_list[i + 6]), STORE);
- vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf
- (vm->mbuf_alloc_list[i + 7]), STORE);
-
- mb0 = vm->mbuf_alloc_list[i];
- mb1 = vm->mbuf_alloc_list[i + 1];
- mb2 = vm->mbuf_alloc_list[i + 2];
- mb3 = vm->mbuf_alloc_list[i + 3];
-
- b0 = vlib_buffer_from_rte_mbuf (mb0);
- b1 = vlib_buffer_from_rte_mbuf (mb1);
- b2 = vlib_buffer_from_rte_mbuf (mb2);
- b3 = vlib_buffer_from_rte_mbuf (mb3);
-
- bi0 = vlib_get_buffer_index (vm, b0);
- bi1 = vlib_get_buffer_index (vm, b1);
- bi2 = vlib_get_buffer_index (vm, b2);
- bi3 = vlib_get_buffer_index (vm, b3);
-
- fl->buffers[f++] = bi0;
- fl->buffers[f++] = bi1;
- fl->buffers[f++] = bi2;
- fl->buffers[f++] = bi3;
-
- clib_memcpy64_x4 (b0, b1, b2, b3, &bt);
-
- if (fl->buffer_init_function)
- {
- fl->buffer_init_function (vm, fl, &bi0, 1);
- fl->buffer_init_function (vm, fl, &bi1, 1);
- fl->buffer_init_function (vm, fl, &bi2, 1);
- fl->buffer_init_function (vm, fl, &bi3, 1);
- }
- i += 4;
- }
+ _vec_len (d->mbuf_alloc_list) = n_alloc;
- while (i < n)
- {
- mb0 = vm->mbuf_alloc_list[i];
+ first = vec_len (fl->buffers);
+ vec_resize_aligned (fl->buffers, n_alloc, CLIB_CACHE_LINE_BYTES);
- b0 = vlib_buffer_from_rte_mbuf (mb0);
- bi0 = vlib_get_buffer_index (vm, b0);
+ n_left = n_alloc;
+ mb = d->mbuf_alloc_list;
+ bi = fl->buffers + first;
- fl->buffers[f++] = bi0;
- clib_memcpy (b0, &bt, sizeof (vlib_buffer_t));
+ ASSERT (n_left % 8 == 0);
- if (fl->buffer_init_function)
- fl->buffer_init_function (vm, fl, &bi0, 1);
- i++;
+ while (n_left >= 8)
+ {
+ if (PREDICT_FALSE (n_left < 24))
+ goto no_prefetch;
+
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[16]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[17]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[18]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[19]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[20]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[21]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[22]), STORE);
+ vlib_prefetch_buffer_header (vlib_buffer_from_rte_mbuf (mb[23]), STORE);
+
+ no_prefetch:
+ vlib_get_buffer_indices_with_offset (vm, (void **) mb, bi, 8,
+ sizeof (struct rte_mbuf));
+ clib_memcpy64_x4 (vlib_buffer_from_rte_mbuf (mb[0]),
+ vlib_buffer_from_rte_mbuf (mb[1]),
+ vlib_buffer_from_rte_mbuf (mb[2]),
+ vlib_buffer_from_rte_mbuf (mb[3]), &bt);
+ clib_memcpy64_x4 (vlib_buffer_from_rte_mbuf (mb[4]),
+ vlib_buffer_from_rte_mbuf (mb[5]),
+ vlib_buffer_from_rte_mbuf (mb[6]),
+ vlib_buffer_from_rte_mbuf (mb[7]), &bt);
+
+ n_left -= 8;
+ mb += 8;
+ bi += 8;
}
- fl->n_alloc += n;
+ if (fl->buffer_init_function)
+ fl->buffer_init_function (vm, fl, fl->buffers + first, n_alloc);
- return n;
-}
+ fl->n_alloc += n_alloc;
-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, *src;
- uword len, n_filled;
-
- dst = alloc_buffers;
-
- n_filled = fill_free_list (vm, free_list, n_alloc_buffers);
- if (n_filled == 0)
- return 0;
-
- len = vec_len (free_list->buffers);
- ASSERT (len >= n_alloc_buffers);
-
- src = free_list->buffers + len - n_alloc_buffers;
- clib_memcpy (dst, src, n_alloc_buffers * sizeof (u32));
-
- _vec_len (free_list->buffers) -= n_alloc_buffers;
-
- 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
-CLIB_MULTIARCH_FN (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
-CLIB_MULTIARCH_FN (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);
+ return n_alloc;
}
static_always_inline void
-dpdk_prefetch_buffer_by_index (vlib_main_t * vm, u32 bi)
+dpdk_prefetch_buffer (vlib_buffer_t * b)
{
- vlib_buffer_t *b;
struct rte_mbuf *mb;
- b = vlib_get_buffer (vm, bi);
mb = rte_mbuf_from_vlib_buffer (b);
- CLIB_PREFETCH (mb, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (mb, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
}
vlib_buffer_t * b)
{
vlib_buffer_free_list_t *fl;
- u32 fi;
+ u32 thread_index = vlib_get_thread_index ();
+ vlib_buffer_free_list_index_t fi;
fl = vlib_buffer_get_buffer_free_list (vm, b, &fi);
/* The only current use of this callback: multicast recycle */
vlib_buffer_add_to_free_list (vm, fl, bi,
(b->flags & VLIB_BUFFER_RECYCLE) == 0);
- for (j = 0; j < vec_len (bm->announce_list); j++)
+ for (j = 0; j < vec_len (vm->buffer_announce_list); j++)
{
- if (fl == bm->announce_list[j])
+ if (fl == vm->buffer_announce_list[j])
goto already_announced;
}
- vec_add1 (bm->announce_list, fl);
+ vec_add1 (vm->buffer_announce_list, fl);
already_announced:
;
}
- else
- {
- if (PREDICT_TRUE ((b->flags & VLIB_BUFFER_RECYCLE) == 0))
- dpdk_rte_pktmbuf_free (vm, b);
- }
+ else if (PREDICT_TRUE ((b->flags & VLIB_BUFFER_RECYCLE) == 0))
+ dpdk_rte_pktmbuf_free (vm, thread_index, b, 1);
}
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_t *b0, *b1, *b2, *b3;
+ vlib_buffer_main_t *bm = &buffer_main;
+ vlib_buffer_t *bufp[n_buffers], **b = bufp;
+ u32 thread_index = vlib_get_thread_index ();
int i = 0;
+ u32 simple_mask = (VLIB_BUFFER_NON_DEFAULT_FREELIST | VLIB_BUFFER_RECYCLE |
+ VLIB_BUFFER_NEXT_PRESENT);
+ u32 n_left, *bi;
u32 (*cb) (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
u32 follow_buffer_next);
if (!n_buffers)
return;
- while (i + 7 < n_buffers)
+ n_left = n_buffers;
+ bi = buffers;
+ b = bufp;
+ vlib_get_buffers (vm, bi, b, n_buffers);
+
+ while (n_left >= 4)
{
- dpdk_prefetch_buffer_by_index (vm, buffers[i + 4]);
- dpdk_prefetch_buffer_by_index (vm, buffers[i + 5]);
- dpdk_prefetch_buffer_by_index (vm, buffers[i + 6]);
- dpdk_prefetch_buffer_by_index (vm, buffers[i + 7]);
-
- b0 = vlib_get_buffer (vm, buffers[i]);
- b1 = vlib_get_buffer (vm, buffers[i + 1]);
- b2 = vlib_get_buffer (vm, buffers[i + 2]);
- b3 = vlib_get_buffer (vm, buffers[i + 3]);
-
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b1);
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b2);
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b3);
-
- recycle_or_free (vm, bm, buffers[i], b0);
- recycle_or_free (vm, bm, buffers[i + 1], b1);
- recycle_or_free (vm, bm, buffers[i + 2], b2);
- recycle_or_free (vm, bm, buffers[i + 3], b3);
-
- i += 4;
+ u32 or_flags;
+ vlib_buffer_t **p;
+
+ if (n_left < 16)
+ goto no_prefetch;
+
+ p = b + 12;
+ dpdk_prefetch_buffer (p[0]);
+ dpdk_prefetch_buffer (p[1]);
+ dpdk_prefetch_buffer (p[2]);
+ dpdk_prefetch_buffer (p[3]);
+ no_prefetch:
+
+ for (i = 0; i < 4; i++)
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[i]);
+
+ or_flags = b[0]->flags | b[1]->flags | b[2]->flags | b[3]->flags;
+
+ if (or_flags & simple_mask)
+ {
+ recycle_or_free (vm, bm, bi[0], b[0]);
+ recycle_or_free (vm, bm, bi[1], b[1]);
+ recycle_or_free (vm, bm, bi[2], b[2]);
+ recycle_or_free (vm, bm, bi[3], b[3]);
+ }
+ else
+ {
+ dpdk_rte_pktmbuf_free (vm, thread_index, b[0], 0);
+ dpdk_rte_pktmbuf_free (vm, thread_index, b[1], 0);
+ dpdk_rte_pktmbuf_free (vm, thread_index, b[2], 0);
+ dpdk_rte_pktmbuf_free (vm, thread_index, b[3], 0);
+ }
+ bi += 4;
+ b += 4;
+ n_left -= 4;
}
- while (i < n_buffers)
+ while (n_left)
{
- b0 = vlib_get_buffer (vm, buffers[i]);
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b);
- recycle_or_free (vm, bm, buffers[i], b0);
- i++;
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
+ recycle_or_free (vm, bm, bi[0], b[0]);
+ bi += 1;
+ b += 1;
+ n_left -= 1;
}
- if (vec_len (bm->announce_list))
+ if (vec_len (vm->buffer_announce_list))
{
vlib_buffer_free_list_t *fl;
- for (i = 0; i < vec_len (bm->announce_list); i++)
+ for (i = 0; i < vec_len (vm->buffer_announce_list); i++)
{
- fl = bm->announce_list[i];
+ fl = vm->buffer_announce_list[i];
fl->buffers_added_to_freelist_function (vm, fl);
}
- _vec_len (bm->announce_list) = 0;
+ _vec_len (vm->buffer_announce_list) = 0;
}
-
- vec_foreach_index (i, mbuf_pending_free_list)
- {
- int len = vec_len (mbuf_pending_free_list[i]);
- if (len)
- {
- rte_mempool_put_bulk (mbuf_pending_free_list[i][len - 1]->pool,
- (void *) mbuf_pending_free_list[i], len);
- vec_reset_length (mbuf_pending_free_list[i]);
- }
- }
}
void
0);
}
-#ifndef CLIB_MULTIARCH_VARIANT
+#ifndef CLIB_MARCH_VARIANT
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)
+ uword min_n_buffers_each_alloc, u8 * name)
{
vlib_packet_template_t *t = (vlib_packet_template_t *) vt;
vlib_worker_thread_barrier_release (vm);
}
+static clib_error_t *
+scan_vfio_fd (void *arg, u8 * path_name, u8 * file_name)
+{
+ dpdk_buffer_main_t *dbm = &dpdk_buffer_main;
+ linux_vfio_main_t *lvm = &vfio_main;
+ const char fn[] = "/dev/vfio/vfio";
+ char buff[sizeof (fn)] = { 0 };
+ int fd;
+ u8 *path = format (0, "%v%c", path_name, 0);
+
+ if (readlink ((char *) path, buff, sizeof (fn)) + 1 != sizeof (fn))
+ goto done;
+
+ if (strncmp (fn, buff, sizeof (fn)))
+ goto done;
+
+ fd = atoi ((char *) file_name);
+ if (fd != lvm->container_fd)
+ dbm->vfio_container_fd = fd;
+
+done:
+ vec_free (path);
+ return 0;
+}
+
clib_error_t *
dpdk_pool_create (vlib_main_t * vm, u8 * pool_name, u32 elt_size,
u32 num_elts, u32 pool_priv_size, u16 cache_size, u8 numa,
- struct rte_mempool **_mp, vlib_physmem_region_index_t * pri)
+ struct rte_mempool ** _mp,
+ vlib_physmem_region_index_t * pri)
{
+ dpdk_buffer_main_t *dbm = &dpdk_buffer_main;
struct rte_mempool *mp;
vlib_physmem_region_t *pr;
+ dpdk_mempool_private_t priv;
clib_error_t *error = 0;
u32 size, obj_size;
i32 ret;
+ uword i;
obj_size = rte_mempool_calc_obj_size (elt_size, 0, 0);
-#if RTE_VERSION < RTE_VERSION_NUM(17, 11, 0, 0)
- size = rte_mempool_xmem_size (num_elts, obj_size, 21);
-#else
+
+#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
size = rte_mempool_xmem_size (num_elts, obj_size, 21, 0);
+#else
+ size = rte_mempool_calc_mem_size_helper (num_elts, obj_size, 21);
#endif
- error =
- vlib_physmem_region_alloc (vm, (i8 *) pool_name, size, numa, 0, pri);
+ error = vlib_physmem_region_alloc (vm, (char *) pool_name, size, numa,
+ VLIB_PHYSMEM_F_HUGETLB |
+ VLIB_PHYSMEM_F_SHARED, pri);
if (error)
return error;
pr = vlib_physmem_get_region (vm, pri[0]);
- mp =
- rte_mempool_create_empty ((i8 *) pool_name, num_elts, elt_size,
- 512, pool_priv_size, numa, 0);
+ mp = rte_mempool_create_empty ((char *) pool_name, num_elts, elt_size,
+ 512, pool_priv_size, numa, 0);
if (!mp)
return clib_error_return (0, "failed to create %s", pool_name);
rte_mempool_set_ops_byname (mp, RTE_MBUF_DEFAULT_MEMPOOL_OPS, NULL);
-#if RTE_VERSION < RTE_VERSION_NUM(17, 11, 0, 0)
- ret =
- rte_mempool_populate_phys_tab (mp, pr->mem, pr->page_table, pr->n_pages,
- pr->log2_page_size, NULL, NULL);
-#else
- ret =
- rte_mempool_populate_iova_tab (mp, pr->mem, pr->page_table, pr->n_pages,
- pr->log2_page_size, NULL, NULL);
-#endif
- if (ret != (i32) mp->size)
+ /* Call the mempool priv initializer */
+ priv.mbp_priv.mbuf_data_room_size = VLIB_BUFFER_PRE_DATA_SIZE +
+ VLIB_BUFFER_DATA_SIZE;
+ priv.mbp_priv.mbuf_priv_size = VLIB_BUFFER_HDR_SIZE;
+ rte_pktmbuf_pool_init (mp, &priv);
+
+ for (i = 0; i < pr->n_pages; i++)
{
- rte_mempool_free (mp);
- return clib_error_return (0, "failed to populate %s", pool_name);
+ size_t page_size = 1 << pr->log2_page_size;
+ ret = rte_mempool_populate_iova (mp, ((char *) pr->mem) + i * page_size,
+ pr->page_table[i], page_size, 0, 0);
+ if (ret < 0)
+ {
+ rte_mempool_free (mp);
+ return clib_error_return (0, "failed to populate %s", pool_name);
+ }
}
_mp[0] = mp;
+ /* DPDK currently doesn't provide API to map DMA memory for empty mempool
+ so we are using this hack, will be nice to have at least API to get
+ VFIO container FD */
+ if (dbm->vfio_container_fd == -1)
+ foreach_directory_file ("/proc/self/fd", scan_vfio_fd, 0, 0);
+
+ if (dbm->vfio_container_fd != -1)
+ {
+ struct vfio_iommu_type1_dma_map dm = { 0 };
+ int i, rv = 0;
+ dm.argsz = sizeof (struct vfio_iommu_type1_dma_map);
+ dm.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE;
+
+ /* *INDENT-OFF* */
+ vec_foreach_index (i, pr->page_table)
+ {
+ dm.vaddr = pointer_to_uword (pr->mem) + (i << pr->log2_page_size);
+ dm.size = 1 << pr->log2_page_size;
+ dm.iova = pr->page_table[i];
+ if ((rv = ioctl (dbm->vfio_container_fd, VFIO_IOMMU_MAP_DMA, &dm)))
+ break;
+ }
+ /* *INDENT-ON* */
+ if (rv != 0 && errno != EINVAL)
+ clib_unix_warning ("ioctl(VFIO_IOMMU_MAP_DMA) pool '%s'", pool_name);
+ }
+
return 0;
}
{
dpdk_main_t *dm = &dpdk_main;
struct rte_mempool *rmp;
- dpdk_mempool_private_t priv;
vlib_physmem_region_index_t pri;
clib_error_t *error = 0;
u8 *pool_name;
if (!error)
{
- priv.mbp_priv.mbuf_data_room_size = VLIB_BUFFER_PRE_DATA_SIZE +
- VLIB_BUFFER_DATA_SIZE;
- priv.mbp_priv.mbuf_priv_size = VLIB_BUFFER_HDR_SIZE;
-
- /* call the mempool priv initializer */
- rte_pktmbuf_pool_init (rmp, &priv);
-
/* call the object initializers */
rte_mempool_obj_iter (rmp, rte_pktmbuf_init, 0);
dpdk_mempool_private_t *privp = rte_mempool_get_priv (rmp);
- privp->buffer_pool_index = vlib_buffer_add_physmem_region (vm, pri);
+ privp->buffer_pool_index = vlib_buffer_pool_create (vm, pri, 0);
dm->pktmbuf_pools[socket_id] = rmp;
{
void *oldheap;
- vlib_buffer_state_heap = mheap_alloc (0, 10 << 20);
-
+ vlib_buffer_state_heap =
+ mheap_alloc_with_lock (0, 10 << 20, 0 /* locked */ );
oldheap = clib_mem_set_heap (vlib_buffer_state_heap);
vlib_buffer_state_validation_hash = hash_create (0, sizeof (uword));
}
#endif
+static clib_error_t *
+dpdk_buffer_init (vlib_main_t * vm)
+{
+ dpdk_buffer_main_t *dbm = &dpdk_buffer_main;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+
+ vec_validate_aligned (dbm->ptd, tm->n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
+
+ dbm->vfio_container_fd = -1;
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (dpdk_buffer_init);
+
/* *INDENT-OFF* */
VLIB_BUFFER_REGISTER_CALLBACKS (dpdk, static) = {
- .vlib_buffer_alloc_cb = &dpdk_buffer_alloc,
- .vlib_buffer_alloc_from_free_list_cb = &dpdk_buffer_alloc_from_free_list,
+ .vlib_buffer_fill_free_list_cb = &dpdk_buffer_fill_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,
/* *INDENT-ON* */
#if __x86_64__
-vlib_buffer_alloc_cb_t __clib_weak dpdk_buffer_alloc_avx512;
-vlib_buffer_alloc_cb_t __clib_weak dpdk_buffer_alloc_avx2;
-vlib_buffer_alloc_from_free_list_cb_t __clib_weak
- dpdk_buffer_alloc_from_free_list_avx512;
-vlib_buffer_alloc_from_free_list_cb_t __clib_weak
- dpdk_buffer_alloc_from_free_list_avx2;
+vlib_buffer_fill_free_list_cb_t __clib_weak dpdk_buffer_fill_free_list_avx512;
+vlib_buffer_fill_free_list_cb_t __clib_weak dpdk_buffer_fill_free_list_avx2;
vlib_buffer_free_cb_t __clib_weak dpdk_buffer_free_avx512;
vlib_buffer_free_cb_t __clib_weak dpdk_buffer_free_avx2;
vlib_buffer_free_no_next_cb_t __clib_weak dpdk_buffer_free_no_next_avx512;
dpdk_input_multiarch_select (void)
{
vlib_buffer_callbacks_t *cb = &__dpdk_buffer_callbacks;
- if (dpdk_buffer_alloc_avx512 && clib_cpu_supports_avx512f ())
+ if (dpdk_buffer_fill_free_list_avx512 && clib_cpu_supports_avx512f ())
{
- cb->vlib_buffer_alloc_cb = dpdk_buffer_alloc_avx512;
- cb->vlib_buffer_alloc_from_free_list_cb =
- dpdk_buffer_alloc_from_free_list_avx512;
+ cb->vlib_buffer_fill_free_list_cb = dpdk_buffer_fill_free_list_avx512;
cb->vlib_buffer_free_cb = dpdk_buffer_free_avx512;
cb->vlib_buffer_free_no_next_cb = dpdk_buffer_free_no_next_avx512;
}
- else if (dpdk_buffer_alloc_avx2 && clib_cpu_supports_avx2 ())
+ else if (dpdk_buffer_fill_free_list_avx2 && clib_cpu_supports_avx2 ())
{
- cb->vlib_buffer_alloc_cb = dpdk_buffer_alloc_avx2;
- cb->vlib_buffer_alloc_from_free_list_cb =
- dpdk_buffer_alloc_from_free_list_avx2;
+ cb->vlib_buffer_fill_free_list_cb = dpdk_buffer_fill_free_list_avx2;
cb->vlib_buffer_free_cb = dpdk_buffer_free_avx2;
cb->vlib_buffer_free_no_next_cb = dpdk_buffer_free_no_next_avx2;
}
Code Review / vpp.git / blobdiff