ip: Replace Sematics for Interface IP addresses

[vpp.git] / src / plugins / vmxnet3 / output.c

diff --git a/src/plugins/vmxnet3/output.c b/src/plugins/vmxnet3/output.c
index 5c48549..81a1afb 100644 (file)
--- a/src/plugins/vmxnet3/output.c
+++ b/src/plugins/vmxnet3/output.c
@@ -127,7 +127,9 @@ VNET_DEVICE_CLASS_TX_FN (vmxnet3_device_class) (vlib_main_t * vm,
   while (PREDICT_TRUE (n_left))
     {
       u16 space_needed = 1, i;
+      u32 gso_size = 0;
       vlib_buffer_t *b;
+      u32 hdr_len = 0;
 
       bi0 = buffers[0];
       b0 = vlib_get_buffer (vm, bi0);
@@ -178,17 +180,33 @@ VNET_DEVICE_CLASS_TX_FN (vmxnet3_device_class) (vlib_main_t * vm,
          txq->tx_ring.bufs[desc_idx] = bi0;
 
          txd = &txq->tx_desc[desc_idx];
+
          txd->address = vlib_buffer_get_current_pa (vm, b0);
 
          txd->flags[0] = generation | b0->current_length;
+         txd->flags[1] = 0;
+         if (PREDICT_FALSE (b0->flags & VNET_BUFFER_F_GSO))
+           {
+             /*
+              * We should not be getting GSO outbound traffic unless it is
+              * lro is enable
+              */
+             ASSERT (vd->gso_enable == 1);
+             gso_size = vnet_buffer2 (b0)->gso_size;
+             hdr_len = vnet_buffer (b0)->l4_hdr_offset +
+               sizeof (ethernet_header_t);
+           }
 
          generation = txq->tx_ring.gen;
-
-         txd->flags[1] = 0;
          bi0 = b0->next_buffer;
        }
-
-      txd->flags[1] = VMXNET3_TXF_CQ | VMXNET3_TXF_EOP;
+      if (PREDICT_FALSE (gso_size != 0))
+       {
+         txd->flags[1] = hdr_len;
+         txd->flags[1] |= VMXNET3_TXF_OM (VMXNET3_OM_TSO);
+         txd->flags[0] |= VMXNET3_TXF_MSSCOF (gso_size);
+       }
+      txd->flags[1] |= VMXNET3_TXF_CQ | VMXNET3_TXF_EOP;
       asm volatile ("":::"memory");
       /*
        * Now toggle back the generation bit for the first segment.