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Diffstat (limited to 'src/vnet/unix/tuntap.c')
-rw-r--r--src/vnet/unix/tuntap.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/src/vnet/unix/tuntap.c b/src/vnet/unix/tuntap.c
index 9616feb2d51..dc5c2a890d8 100644
--- a/src/vnet/unix/tuntap.c
+++ b/src/vnet/unix/tuntap.c
@@ -71,8 +71,11 @@ typedef struct {
* @brief TUNTAP node main state
*/
typedef struct {
- /** Vector of iovecs for readv/writev calls. */
- struct iovec * iovecs;
+ /** Vector of iovecs for readv calls. */
+ struct iovec * rd_iovecs;
+
+ /** Vector of iovecs for writev calls. */
+ struct iovec * wr_iovecs;
/** Vector of VLIB rx buffers to use. We allocate them in blocks
of VLIB_FRAME_SIZE (256). */
@@ -160,11 +163,11 @@ tuntap_tx (vlib_main_t * vm,
}
/* Re-set iovecs if present. */
- if (tm->iovecs)
- _vec_len (tm->iovecs) = 0;
+ if (tm->wr_iovecs)
+ _vec_len (tm->wr_iovecs) = 0;
/** VLIB buffer chain -> Unix iovec(s). */
- vec_add2 (tm->iovecs, iov, 1);
+ vec_add2 (tm->wr_iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = l = b->current_length;
@@ -173,7 +176,7 @@ tuntap_tx (vlib_main_t * vm,
do {
b = vlib_get_buffer (vm, b->next_buffer);
- vec_add2 (tm->iovecs, iov, 1);
+ vec_add2 (tm->wr_iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = b->current_length;
@@ -181,7 +184,8 @@ tuntap_tx (vlib_main_t * vm,
} while (b->flags & VLIB_BUFFER_NEXT_PRESENT);
}
- if (writev (tm->dev_net_tun_fd, tm->iovecs, vec_len (tm->iovecs)) < l)
+ if (writev (tm->dev_net_tun_fd, tm->wr_iovecs,
+ vec_len (tm->wr_iovecs)) < l)
clib_unix_warning ("writev");
n_bytes += l;
@@ -256,15 +260,15 @@ tuntap_rx (vlib_main_t * vm,
/** We should have enough buffers left for an MTU sized packet. */
ASSERT (vec_len (tm->rx_buffers) >= tm->mtu_buffers);
- vec_validate (tm->iovecs, tm->mtu_buffers - 1);
+ vec_validate (tm->rd_iovecs, tm->mtu_buffers - 1);
for (i = 0; i < tm->mtu_buffers; i++)
{
b = vlib_get_buffer (vm, tm->rx_buffers[i_rx - i]);
- tm->iovecs[i].iov_base = b->data;
- tm->iovecs[i].iov_len = buffer_size;
+ tm->rd_iovecs[i].iov_base = b->data;
+ tm->rd_iovecs[i].iov_len = buffer_size;
}
- n_bytes_left = readv (tm->dev_net_tun_fd, tm->iovecs, tm->mtu_buffers);
+ n_bytes_left = readv (tm->dev_net_tun_fd, tm->rd_iovecs, tm->mtu_buffers);
n_bytes_in_packet = n_bytes_left;
if (n_bytes_left <= 0)
{