diff options
Diffstat (limited to 'src/plugins/vmxnet3/output.c')
| -rw-r--r-- | src/plugins/vmxnet3/output.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/src/plugins/vmxnet3/output.c b/src/plugins/vmxnet3/output.c index 5c48549e60d..5de41cdba07 100644 --- 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->lro_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. |