From: Mohsin Kazmi <sykazmi@cisco.com>
Date: Tue, 23 Feb 2021 11:46:14 +0000 (+0100)
Subject: virtio: place the event fds on worker threads for pci device
X-Git-Tag: v21.10-rc0~456
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F10%2F31410%2F2;p=vpp.git

virtio: place the event fds on worker threads for pci device

Type: improvement

Change-Id: I8322bca1a9aa75c97c0fe2ff24b2f65fc43242ce
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
---

diff --git a/src/vnet/devices/virtio/virtio.c b/src/vnet/devices/virtio/virtio.c
index 2e49c798c7c..4f812b1e7aa 100644
--- a/src/vnet/devices/virtio/virtio.c
+++ b/src/vnet/devices/virtio/virtio.c
@@ -225,6 +225,7 @@ virtio_vring_set_rx_queues (vlib_main_t *vm, virtio_if_t *vif)
 {
   vnet_main_t *vnm = vnet_get_main ();
   virtio_vring_t *vring;
+  u32 i = 0;
 
   vnet_hw_if_set_input_node (vnm, vif->hw_if_index, virtio_input_node.index);
 
@@ -251,6 +252,16 @@ virtio_vring_set_rx_queues (vlib_main_t *vm, virtio_if_t *vif)
 	  vnet_hw_if_set_rx_queue_file_index (vnm, vring->queue_index,
 					      vring->call_file_index);
 	}
+      else if ((vif->type == VIRTIO_IF_TYPE_PCI) && (vif->support_int_mode) &&
+	       (vif->msix_enabled == VIRTIO_MSIX_ENABLED))
+	{
+	  u32 file_index;
+	  file_index =
+	    vlib_pci_get_msix_file_index (vm, vif->pci_dev_handle, i + 1);
+	  vnet_hw_if_set_rx_queue_file_index (vnm, vring->queue_index,
+					      file_index);
+	  i++;
+	}
     }
   vnet_hw_if_update_runtime_data (vnm, vif->hw_if_index);
 }