X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=inline;f=src%2Fplugins%2Fmemif%2Fmemif.c;h=05a7f83b3b112e43e8265106fb843713cf4e28cb;hb=2de9c0f92;hp=3171ba22f7df93862cb160c4ac6662c3acbfe99e;hpb=e58041f242bf4bd120ecc9619b88348d80b94c17;p=vpp.git

diff --git a/src/plugins/memif/memif.c b/src/plugins/memif/memif.c
index 3171ba22f7d..05a7f83b3b1 100644
--- a/src/plugins/memif/memif.c
+++ b/src/plugins/memif/memif.c
@@ -65,6 +65,24 @@ memif_queue_intfd_close (memif_queue_t * mq)
     }
 }
 
+static void
+memif_disconnect_free_zc_queue_buffer (memif_queue_t * mq, u8 is_rx)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  u16 ring_size, n_slots, mask, start;
+
+  ring_size = 1 << mq->log2_ring_size;
+  mask = ring_size - 1;
+  n_slots = mq->ring->head - mq->last_tail;
+  start = mq->last_tail & mask;
+  if (is_rx)
+    vlib_buffer_free_from_ring (vm, mq->buffers, start, ring_size, n_slots);
+  else
+    vlib_buffer_free_from_ring_no_next (vm, mq->buffers, start, ring_size,
+					n_slots);
+  vec_free (mq->buffers);
+}
+
 void
 memif_disconnect (memif_if_t * mif, clib_error_t * err)
 {
@@ -126,10 +144,28 @@ memif_disconnect (memif_if_t * mif, clib_error_t * err)
 	    memif_log_warn (mif,
 			   "Unable to unassign interface %d, queue %d: rc=%d",
 			   mif->hw_if_index, i, rv);
+	  if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+	  {
+	    memif_disconnect_free_zc_queue_buffer(mq, 1);
+	  }
 	  mq->ring = 0;
 	}
     }
 
+  /* *INDENT-OFF* */
+  vec_foreach_index (i, mif->tx_queues)
+  {
+    mq = vec_elt_at_index (mif->tx_queues, i);
+    if (mq->ring)
+    {
+      if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+      {
+        memif_disconnect_free_zc_queue_buffer(mq, 0);
+      }
+    }
+    mq->ring = 0;
+  }
+
   /* free tx and rx queues */
   vec_foreach (mq, mif->rx_queues)
     memif_queue_intfd_close (mq);
@@ -185,6 +221,7 @@ memif_int_fd_read_ready (clib_file_t * uf)
 clib_error_t *
 memif_connect (memif_if_t * mif)
 {
+  vlib_main_t *vm = vlib_get_main ();
   vnet_main_t *vnm = vnet_get_main ();
   clib_file_t template = { 0 };
   memif_region_t *mr;
@@ -235,6 +272,7 @@ memif_connect (memif_if_t * mif)
   vec_foreach_index (i, mif->rx_queues)
     {
       memif_queue_t *mq = vec_elt_at_index (mif->rx_queues, i);
+      u32 ti;
       int rv;
 
       mq->ring = mif->regions[mq->region].shm + mq->offset;
@@ -254,6 +292,9 @@ memif_connect (memif_if_t * mif)
 	  memif_file_add (&mq->int_clib_file_index, &template);
 	}
       vnet_hw_interface_assign_rx_thread (vnm, mif->hw_if_index, i, ~0);
+      ti = vnet_get_device_input_thread_index (vnm, mif->hw_if_index, i);
+      mq->buffer_pool_index =
+	vlib_buffer_pool_get_default_for_numa (vm, vlib_mains[ti]->numa_node);
       rv = vnet_hw_interface_set_rx_mode (vnm, mif->hw_if_index, i,
 					  VNET_HW_INTERFACE_RX_MODE_DEFAULT);
       if (rv)
@@ -338,7 +379,7 @@ memif_init_regions_and_queues (memif_if_t * mif)
     {
       vlib_buffer_pool_t *bp;
       /* *INDENT-OFF* */
-      vec_foreach (bp, buffer_main.buffer_pools)
+      vec_foreach (bp, vm->buffer_main->buffer_pools)
 	{
 	  vlib_physmem_map_t *pm;
 	  pm = vlib_physmem_get_map (vm, bp->physmem_map_index);
@@ -1039,7 +1080,7 @@ VLIB_INIT_FUNCTION (memif_init);
 /* *INDENT-OFF* */
 VLIB_PLUGIN_REGISTER () = {
     .version = VPP_BUILD_VER,
-    .description = "Packet Memory Interface (experimental)",
+    .description = "Packet Memory Interface (memif) -- Experimental",
 };
 /* *INDENT-ON* */