}
printf ("\n\n");
}
-#endif /* MEMIF_DBG */
+#endif /* MEMIF_DBG_SHM */
int
memif_syscall_error_handler (int err_code)
}
DBG ("creating socket file");
ms = malloc (sizeof (memif_socket_t));
- ms->filename = malloc (strlen ((char *) conn->args.
- socket_filename) +
- sizeof (char));
+ ms->filename =
+ malloc (strlen ((char *) conn->args.socket_filename) +
+ sizeof (char));
memset (ms->filename, 0,
strlen ((char *) conn->args.socket_filename) +
sizeof (char));
if (((memif_connection_t *) e->data_struct)->rx_queues[i].
int_fd == fd)
{
- ((memif_connection_t *) e->data_struct)->on_interrupt ((void *) e->data_struct, ((memif_connection_t *) e->data_struct)->private_ctx, i);
+ ((memif_connection_t *) e->
+ data_struct)->on_interrupt ((void *) e->data_struct,
+ ((memif_connection_t *)
+ e->data_struct)->
+ private_ctx, i);
return MEMIF_ERR_SUCCESS;
}
}
int
memif_buffer_alloc (memif_conn_handle_t conn, uint16_t qid,
memif_buffer_t * bufs, uint16_t count,
- uint16_t * count_out)
+ uint16_t * count_out, uint16_t size)
{
memif_connection_t *c = (memif_connection_t *) conn;
if (c == NULL)
memif_queue_t *mq = &c->tx_queues[qid];
memif_ring_t *ring = mq->ring;
memif_buffer_t *b0, *b1;
+ uint8_t chain_buf0, chain_buf1;
uint16_t mask = (1 << mq->log2_ring_size) - 1;
uint16_t s0, s1, ns;
*count_out = 0;
- int err = MEMIF_ERR_SUCCESS; /* 0 */
+ int i, err = MEMIF_ERR_SUCCESS; /* 0 */
if (ring->tail != ring->head)
{
{
while ((count > 2) && (ns > 2))
{
- s0 = (ring->head + mq->alloc_bufs + *count_out) & mask;
- s1 = (ring->head + mq->alloc_bufs + *count_out + 1) & mask;
+ s0 = (ring->head + mq->alloc_bufs) & mask;
+ chain_buf0 = size / ring->desc[s0].buffer_length;
+ if (((size % ring->desc[s0].buffer_length) != 0) || (size == 0))
+ chain_buf0++;
+
+ if (chain_buf0 > ns)
+ break;
+
+ s1 = (ring->head + mq->alloc_bufs + chain_buf0) & mask;
+ chain_buf1 = size / ring->desc[s1].buffer_length;
+ if (((size % ring->desc[s1].buffer_length) != 0) || (size == 0))
+ chain_buf1++;
+
+ if ((chain_buf0 + chain_buf1) > ns)
+ break;
b0 = (bufs + *count_out);
b1 = (bufs + *count_out + 1);
b0->desc_index = s0;
b1->desc_index = s1;
- b0->buffer_len = ring->desc[s0].buffer_length;
- b1->buffer_len = ring->desc[s1].buffer_length;
+ ring->desc[s0].flags = 0;
+ ring->desc[s1].flags = 0;
+ b0->buffer_len = ring->desc[s0].buffer_length * chain_buf0;
+ b1->buffer_len = ring->desc[s1].buffer_length * chain_buf1;
/* TODO: support multiple regions -> ring descriptor contains region index */
b0->data = c->regions->shm + ring->desc[s0].offset;
b1->data = c->regions->shm + ring->desc[s1].offset;
+ for (i = 0; i < (memif_min (chain_buf0, chain_buf1) - 1); i++)
+ {
+ ring->desc[(s0 + i) & mask].flags |= MEMIF_DESC_FLAG_NEXT;
+ ring->desc[(s1 + i) & mask].flags |= MEMIF_DESC_FLAG_NEXT;
+ DBG ("allocating chained buffers");
+ }
+
+ if (chain_buf0 > chain_buf1)
+ {
+ for (; i < (chain_buf0 - 1); i++)
+ ring->desc[(s0 + i) & mask].flags |= MEMIF_DESC_FLAG_NEXT;
+ }
+ else
+ {
+ for (; i < (chain_buf1 - 1); i++)
+ ring->desc[(s1 + i) & mask].flags |= MEMIF_DESC_FLAG_NEXT;
+ }
+
+ mq->alloc_bufs += chain_buf0 + chain_buf1;
+
DBG ("allocated ring slots %u, %u", s0, s1);
count -= 2;
- ns -= 2;
+ ns -= chain_buf0 + chain_buf1;
*count_out += 2;
}
- s0 = (ring->head + mq->alloc_bufs + *count_out) & mask;
+ s0 = (ring->head + mq->alloc_bufs) & mask;
b0 = (bufs + *count_out);
+ chain_buf0 = size / ring->desc[s0].buffer_length;
+ if (((size % ring->desc[s0].buffer_length) != 0) || (size == 0))
+ chain_buf0++;
+
+ if (chain_buf0 > ns)
+ break;
+
b0->desc_index = s0;
- b0->buffer_len = ring->desc[s0].buffer_length;
+ ring->desc[s0].flags = 0;
+ b0->buffer_len = ring->desc[s0].buffer_length * chain_buf0;
b0->data = c->regions->shm + ring->desc[s0].offset;
+ for (i = 0; i < (chain_buf0 - 1); i++)
+ {
+ ring->desc[(s0 + i) & mask].flags |= MEMIF_DESC_FLAG_NEXT;
+ DBG ("allocating chained buffers");
+ }
+
+ mq->alloc_bufs += chain_buf0;
+
DBG ("allocated ring slot %u", s0);
count--;
- ns--;
+ ns -= chain_buf0;
*count_out += 1;
}
- mq->alloc_bufs += *count_out;
DBG ("allocated: %u/%u bufs. Total %u allocated bufs", *count_out, count,
mq->alloc_bufs);
memif_ring_t *ring = mq->ring;
uint16_t tail = ring->tail;
uint16_t mask = (1 << mq->log2_ring_size) - 1;
+ uint8_t chain_buf0, chain_buf1;
memif_buffer_t *b0, *b1;
*count_out = 0;
{
b0 = (bufs + *count_out);
b1 = (bufs + *count_out + 1);
- tail = (b0->desc_index + 1) & mask;
- tail = (b1->desc_index + 1) & mask;
+ chain_buf0 =
+ b0->buffer_len / ring->desc[b0->desc_index].buffer_length;
+ if ((b0->buffer_len % ring->desc[b0->desc_index].buffer_length) !=
+ 0)
+ chain_buf0++;
+ chain_buf1 =
+ b1->buffer_len / ring->desc[b1->desc_index].buffer_length;
+ if ((b1->buffer_len % ring->desc[b1->desc_index].buffer_length) !=
+ 0)
+ chain_buf1++;
+ tail = (b1->desc_index + chain_buf1) & mask;
b0->data = NULL;
b1->data = NULL;
count -= 2;
*count_out += 2;
- mq->alloc_bufs -= 2;
+ mq->alloc_bufs -= chain_buf0 + chain_buf1;
}
b0 = (bufs + *count_out);
- tail = (b0->desc_index + 1) & mask;
+ chain_buf0 = b0->buffer_len / ring->desc[b0->desc_index].buffer_length;
+ if ((b0->buffer_len % ring->desc[b0->desc_index].buffer_length) != 0)
+ chain_buf0++;
+ tail = (b0->desc_index + chain_buf0) & mask;
b0->data = NULL;
count--;
*count_out += 1;
- mq->alloc_bufs--;
+ mq->alloc_bufs -= chain_buf0;
}
MEMIF_MEORY_BARRIER ();
ring->tail = tail;
+ DBG ("tail: %u", ring->tail);
return MEMIF_ERR_SUCCESS; /* 0 */
}
memif_ring_t *ring = mq->ring;
uint16_t head = ring->head;
uint16_t mask = (1 << mq->log2_ring_size) - 1;
+ uint8_t chain_buf0, chain_buf1;
*tx = 0;
+ uint16_t curr_buf = 0;
memif_buffer_t *b0, *b1;
+ int i;
while (count)
{
while (count > 2)
{
- b0 = (bufs + *tx);
- b1 = (bufs + *tx + 1);
- ring->desc[b0->desc_index].length = b0->data_len;
- ring->desc[b1->desc_index].length = b1->data_len;
+ b0 = (bufs + curr_buf);
+ b1 = (bufs + curr_buf + 1);
+ chain_buf0 =
+ b0->buffer_len / ring->desc[b0->desc_index].buffer_length;
+ if ((b0->buffer_len % ring->desc[b0->desc_index].buffer_length) !=
+ 0)
+ chain_buf0++;
+
+ chain_buf1 =
+ b1->buffer_len / ring->desc[b1->desc_index].buffer_length;
+ if ((b1->buffer_len % ring->desc[b1->desc_index].buffer_length) !=
+ 0)
+ chain_buf1++;
+
+ for (i = 0; i < memif_min (chain_buf0, chain_buf1); i++)
+ {
+ /* b0 */
+ if (b0->data_len >
+ ring->desc[(b0->desc_index + i) & mask].buffer_length)
+ {
+ b0->data_len -=
+ ring->desc[(b0->desc_index + i) & mask].length =
+ ring->desc[(b0->desc_index + i) & mask].buffer_length;
+ }
+ else
+ {
+ ring->desc[(b0->desc_index + i) & mask].length =
+ b0->data_len;
+ b0->data_len = 0;
+ }
+ /* b1 */
+ if (b1->data_len >
+ ring->desc[(b1->desc_index + i) & mask].buffer_length)
+ {
+ b1->data_len -=
+ ring->desc[(b1->desc_index + i) & mask].length =
+ ring->desc[(b1->desc_index + i) & mask].buffer_length;
+ }
+ else
+ {
+ ring->desc[(b1->desc_index + i) & mask].length =
+ b1->data_len;
+ b1->data_len = 0;
+ }
+#ifdef MEMIF_DBG_SHM
+ print_bytes (b0->data +
+ ring->desc[(b0->desc_index +
+ i) & mask].buffer_length *
+ (chain_buf0 - 1),
+ ring->desc[(b0->desc_index +
+ i) & mask].buffer_length, DBG_TX_BUF);
+ print_bytes (b1->data +
+ ring->desc[(b1->desc_index +
+ i) & mask].buffer_length *
+ (chain_buf1 - 1),
+ ring->desc[(b1->desc_index +
+ i) & mask].buffer_length, DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ }
+ if (chain_buf0 > chain_buf1)
+ {
+ for (; i < chain_buf0; i++)
+ {
+ if (b0->data_len >
+ ring->desc[(b0->desc_index + i) & mask].buffer_length)
+ {
+ b0->data_len -=
+ ring->desc[(b0->desc_index + i) & mask].length =
+ ring->desc[(b0->desc_index + i) & mask].buffer_length;
+ }
+ else
+ {
+ ring->desc[(b0->desc_index + i) & mask].length =
+ b0->data_len;
+ b0->data_len = 0;
+ }
+#ifdef MEMIF_DBG_SHM
+ print_bytes (b0->data +
+ ring->desc[(b0->desc_index +
+ i) & mask].buffer_length *
+ (chain_buf0 - 1),
+ ring->desc[(b0->desc_index +
+ i) & mask].buffer_length,
+ DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ }
+ }
+ else
+ {
+ for (; i < chain_buf1; i++)
+ {
+ if (b1->data_len >
+ ring->desc[(b1->desc_index + i) & mask].buffer_length)
+ {
+ b1->data_len -=
+ ring->desc[(b1->desc_index + i) & mask].length =
+ ring->desc[(b1->desc_index + i) & mask].buffer_length;
+ }
+ else
+ {
+ ring->desc[(b1->desc_index + i) & mask].length =
+ b1->data_len;
+ b1->data_len = 0;
+ }
#ifdef MEMIF_DBG_SHM
- print_bytes (b0->data, b0->data_len, DBG_TX_BUF);
- print_bytes (b1->data, b1->data_len, DBG_TX_BUF);
-#endif
+ print_bytes (b1->data +
+ ring->desc[(b1->desc_index +
+ i) & mask].buffer_length *
+ (chain_buf1 - 1),
+ ring->desc[(b1->desc_index +
+ i) & mask].buffer_length,
+ DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ }
+ }
- head = (b0->desc_index + 1) & mask;
- head = (b1->desc_index + 1) & mask;
+ head = (b1->desc_index + chain_buf1) & mask;
b0->data = NULL;
- b0->data_len = 0;
+#ifdef MEMIF_DBG
+ if (b0->data_len != 0)
+ DBG ("invalid b0 data length!");
+#endif /* MEMIF_DBG */
b1->data = NULL;
- b1->data_len = 0;
+#ifdef MEMIF_DBG
+ if (b1->data_len != 0)
+ DBG ("invalid b1 data length!");
+#endif /* MEMIF_DBG */
count -= 2;
- *tx += 2;
+ *tx += chain_buf0 + chain_buf1;
+ curr_buf += 2;
}
- b0 = (bufs + *tx);
- ring->desc[b0->desc_index].length = b0->data_len;
+ b0 = (bufs + curr_buf);
+ chain_buf0 = b0->buffer_len / ring->desc[b0->desc_index].buffer_length;
+ if ((b0->buffer_len % ring->desc[b0->desc_index].buffer_length) != 0)
+ chain_buf0++;
+ for (i = 0; i < chain_buf0; i++)
+ {
+ if (b0->data_len >
+ ring->desc[(b0->desc_index + i) & mask].buffer_length)
+ {
+ b0->data_len -= ring->desc[(b0->desc_index + i) & mask].length =
+ ring->desc[(b0->desc_index + i) & mask].buffer_length;
+ }
+ else
+ {
+ ring->desc[(b0->desc_index + i) & mask].length = b0->data_len;
+ b0->data_len = 0;
+ }
#ifdef MEMIF_DBG_SHM
- print_bytes (b0->data, b0->data_len, DBG_TX_BUF);
-#endif
+ print_bytes (b0->data +
+ ring->desc[(b0->desc_index + i) & mask].buffer_length *
+ (chain_buf0 - 1),
+ ring->desc[(b0->desc_index + i) & mask].buffer_length,
+ DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ }
- head = (b0->desc_index + 1) & mask;
+ head = (b0->desc_index + chain_buf0) & mask;
b0->data = NULL;
- b0->data_len = 0;
+#ifdef MEMIF_DBG
+ if (b0->data_len != 0)
+ DBG ("invalid b0 data length!");
+#endif /* MEMIF_DBG */
count--;
- *tx += 1;
+ *tx += chain_buf0;
+ curr_buf++;
}
MEMIF_MEORY_BARRIER ();
ring->head = head;
mq->alloc_bufs -= *tx;
+ /* TODO: return num of buffers and packets */
+ *tx = curr_buf;
+
if ((ring->flags & MEMIF_RING_FLAG_MASK_INT) == 0)
{
uint64_t a = 1;
uint16_t ns;
uint16_t mask = (1 << mq->log2_ring_size) - 1;
memif_buffer_t *b0, *b1;
+ uint16_t curr_buf = 0;
*rx = 0;
+ int i;
uint64_t b;
ssize_t r = read (mq->int_fd, &b, sizeof (b));
while (ns && count)
{
+ DBG ("ns: %u, count: %u", ns, count);
while ((ns > 2) && (count > 2))
{
- b0 = (bufs + *rx);
- b1 = (bufs + *rx + 1);
+ b0 = (bufs + curr_buf);
+ b1 = (bufs + curr_buf + 1);
b0->desc_index = mq->last_head;
- b1->desc_index = mq->last_head + 1;
- b0->data = memif_get_buffer (conn, ring, mq->last_head);
- b1->data = memif_get_buffer (conn, ring, mq->last_head + 1);
- b0->data_len = ring->desc[mq->last_head].length;
- b1->data_len = ring->desc[mq->last_head + 1].length;
- b0->buffer_len = ring->desc[mq->last_head].buffer_length;
- b1->buffer_len = ring->desc[mq->last_head + 1].buffer_length;
+ i = 0;
+ b0->data_len = 0;
+ b0->buffer_len = 0;
+ b0->data = memif_get_buffer (conn, ring, mq->last_head);
+ b0->data_len += ring->desc[mq->last_head].length;
+ b0->buffer_len += ring->desc[mq->last_head].buffer_length;
#ifdef MEMIF_DBG_SHM
- print_bytes (b0->data, b0->data_len, DBG_RX_BUF);
- print_bytes (b1->data, b1->data_len, DBG_RX_BUF);
-#endif
+ print_bytes (b0->data +
+ ring->desc[b0->desc_index].buffer_length * i++,
+ ring->desc[b0->desc_index].buffer_length, DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ ns--;
+ *rx += 1;
+ while (ring->desc[mq->last_head].flags & MEMIF_DESC_FLAG_NEXT)
+ {
+ ring->desc[mq->last_head].flags &= ~MEMIF_DESC_FLAG_NEXT;
+ mq->last_head = (mq->last_head + 1) & mask;
+ b0->data_len += ring->desc[mq->last_head].length;
+ b0->buffer_len += ring->desc[mq->last_head].buffer_length;
+#ifdef MEMIF_DBG_SHM
+ print_bytes (b0->data +
+ ring->desc[b0->desc_index].buffer_length * i++,
+ ring->desc[b0->desc_index].buffer_length,
+ DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ ns--;
+ *rx += 1;
+ }
+ mq->last_head = (mq->last_head + 1) & mask;
- mq->last_head = (mq->last_head + 2) & mask;
+ b1->desc_index = mq->last_head;
+ i = 0;
+ b1->data_len = 0;
+ b1->buffer_len = 0;
+
+ b1->data = memif_get_buffer (conn, ring, mq->last_head);
+ b1->data_len += ring->desc[mq->last_head].length;
+ b1->buffer_len += ring->desc[mq->last_head].buffer_length;
+#ifdef MEMIF_DBG_SHM
+ print_bytes (b1->data +
+ ring->desc[b1->desc_index].buffer_length * i++,
+ ring->desc[b1->desc_index].buffer_length, DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ ns--;
+ *rx += 1;
+ while (ring->desc[mq->last_head].flags & MEMIF_DESC_FLAG_NEXT)
+ {
+ ring->desc[mq->last_head].flags &= ~MEMIF_DESC_FLAG_NEXT;
+ mq->last_head = (mq->last_head + 1) & mask;
+ b1->data_len += ring->desc[mq->last_head].length;
+ b1->buffer_len += ring->desc[mq->last_head].buffer_length;
+#ifdef MEMIF_DBG_SHM
+ print_bytes (b1->data +
+ ring->desc[b1->desc_index].buffer_length * i++,
+ ring->desc[b1->desc_index].buffer_length,
+ DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ ns--;
+ *rx += 1;
+ }
+ mq->last_head = (mq->last_head + 1) & mask;
- ns -= 2;
count -= 2;
- *rx += 2;
+ curr_buf += 2;
}
- b0 = (bufs + *rx);
+ b0 = (bufs + curr_buf);
b0->desc_index = mq->last_head;
- b0->data = memif_get_buffer (conn, ring, mq->last_head);
- b0->data_len = ring->desc[mq->last_head].length;
- b0->buffer_len = ring->desc[mq->last_head].buffer_length;
+ i = 0;
+ b0->data_len = 0;
+ b0->buffer_len = 0;
+ b0->data = memif_get_buffer (conn, ring, mq->last_head);
+ b0->data_len += ring->desc[mq->last_head].length;
+ b0->buffer_len += ring->desc[mq->last_head].buffer_length;
#ifdef MEMIF_DBG_SHM
- print_bytes (b0->data, b0->data_len, DBG_RX_BUF);
-#endif
+ print_bytes (b0->data +
+ ring->desc[b0->desc_index].buffer_length * i++,
+ ring->desc[b0->desc_index].buffer_length, DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ ns--;
+ *rx += 1;
+ while (ring->desc[mq->last_head].flags & MEMIF_DESC_FLAG_NEXT)
+ {
+ ring->desc[mq->last_head].flags &= ~MEMIF_DESC_FLAG_NEXT;
+ mq->last_head = (mq->last_head + 1) & mask;
+ b0->data_len += ring->desc[mq->last_head].length;
+ b0->buffer_len += ring->desc[mq->last_head].buffer_length;
+#ifdef MEMIF_DBG_SHM
+ print_bytes (b0->data +
+ ring->desc[b0->desc_index].buffer_length * i++,
+ ring->desc[b0->desc_index].buffer_length, DBG_TX_BUF);
+#endif /* MEMIF_DBG_SHM */
+ ns--;
+ *rx += 1;
+ }
mq->last_head = (mq->last_head + 1) & mask;
- ns--;
count--;
- *rx += 1;
+ curr_buf++;
}
mq->alloc_bufs += *rx;
+ /* TODO: return num of buffers and packets */
+ *rx = curr_buf;
+
if (ns)
{
DBG ("not enough buffers!");
Code Review / vpp.git / blobdiff