X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fnics%2Fvirtio.rst;h=4477c1c16088798ac884356e91ae56e2c0bef4c6;hb=f5057be340e44f3edc0fe90fa875eb89a4c49b4f;hp=aaa8176511ec853515ad6dd47ce0a3c630ee189e;hpb=4710e16a4a7b53c9f2cf38e6f6af945e9af59c26;p=dpdk.git

diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst
index aaa8176511..4477c1c160 100644
--- a/doc/guides/nics/virtio.rst
+++ b/doc/guides/nics/virtio.rst
@@ -154,7 +154,7 @@ Host2VM communication example
         modprobe uio
         echo 512 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
         modprobe uio_pci_generic
-        python usertools/dpdk-devbind.py -b uio_pci_generic 00:03.0
+        ./usertools/dpdk-devbind.py -b uio_pci_generic 00:03.0
 
     We use testpmd as the forwarding application in this example.
 
@@ -329,7 +329,7 @@ To support Rx interrupts,
 
     .. code-block:: console
 
-        python usertools/dpdk-devbind.py -b vfio-pci 00:03.0
+        ./usertools/dpdk-devbind.py -b vfio-pci 00:03.0
 
 Example
 ~~~~~~~
@@ -361,7 +361,7 @@ Below devargs are supported by the PCI virtio driver:
     It is used to specify link speed of virtio device. Link speed is a part of
     link status structure. It could be requested by application using
     rte_eth_link_get_nowait function.
-    (Default: 10000 (10G))
+    (Default: 0xffffffff (Unknown))
 
 #.  ``vectorized``:
 
@@ -422,8 +422,14 @@ Below devargs are supported by the virtio-user vdev:
     It is used to specify link speed of virtio device. Link speed is a part of
     link status structure. It could be requested by application using
     rte_eth_link_get_nowait function.
-    (Default: 10000 (10G))
+    (Default: 0xffffffff (Unknown))
 
+#.  ``vectorized``:
+
+    It is used to specify whether virtio device prefers to use vectorized path.
+    Afterwards, dependencies of vectorized path will be checked in path
+    election.
+    (Default: 0 (disabled))
 
 Virtio paths Selection and Usage
 --------------------------------
@@ -476,6 +482,13 @@ according to below configuration:
    both negotiated, this path will be selected.
 #. Packed virtqueue in-order non-mergeable path: If in-order feature is negotiated and
    Rx mergeable is not negotiated, this path will be selected.
+#. Packed virtqueue vectorized Rx path: If building and running environment support
+   AVX512 && in-order feature is negotiated && Rx mergeable is not negotiated &&
+   TCP_LRO Rx offloading is disabled && vectorized option enabled,
+   this path will be selected.
+#. Packed virtqueue vectorized Tx path: If building and running environment support
+   AVX512 && in-order feature is negotiated && vectorized option enabled,
+   this path will be selected.
 
 Rx/Tx callbacks of each Virtio path
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -498,6 +511,8 @@ are shown in below table:
    Packed virtqueue non-meregable path          virtio_recv_pkts_packed           virtio_xmit_pkts_packed
    Packed virtqueue in-order mergeable path     virtio_recv_mergeable_pkts_packed virtio_xmit_pkts_packed
    Packed virtqueue in-order non-mergeable path virtio_recv_pkts_packed           virtio_xmit_pkts_packed
+   Packed virtqueue vectorized Rx path          virtio_recv_pkts_packed_vec       virtio_xmit_pkts_packed
+   Packed virtqueue vectorized Tx path          virtio_recv_pkts_packed           virtio_xmit_pkts_packed_vec
    ============================================ ================================= ========================
 
 Virtio paths Support Status from Release to Release
@@ -515,20 +530,22 @@ All virtio paths support status are shown in below table:
 
 .. table:: Virtio Paths and Releases
 
-   ============================================ ============= ============= =============
-                  Virtio paths                  16.11 ~ 18.05 18.08 ~ 18.11 19.02 ~ 19.11
-   ============================================ ============= ============= =============
-   Split virtqueue mergeable path                     Y             Y             Y
-   Split virtqueue non-mergeable path                 Y             Y             Y
-   Split virtqueue vectorized Rx path                 Y             Y             Y
-   Split virtqueue simple Tx path                     Y             N             N
-   Split virtqueue in-order mergeable path                          Y             Y
-   Split virtqueue in-order non-mergeable path                      Y             Y
-   Packed virtqueue mergeable path                                                Y
-   Packed virtqueue non-mergeable path                                            Y
-   Packed virtqueue in-order mergeable path                                       Y
-   Packed virtqueue in-order non-mergeable path                                   Y
-   ============================================ ============= ============= =============
+   ============================================ ============= ============= ============= =======
+                  Virtio paths                  16.11 ~ 18.05 18.08 ~ 18.11 19.02 ~ 19.11 20.05 ~
+   ============================================ ============= ============= ============= =======
+   Split virtqueue mergeable path                     Y             Y             Y          Y
+   Split virtqueue non-mergeable path                 Y             Y             Y          Y
+   Split virtqueue vectorized Rx path                 Y             Y             Y          Y
+   Split virtqueue simple Tx path                     Y             N             N          N
+   Split virtqueue in-order mergeable path                          Y             Y          Y
+   Split virtqueue in-order non-mergeable path                      Y             Y          Y
+   Packed virtqueue mergeable path                                                Y          Y
+   Packed virtqueue non-mergeable path                                            Y          Y
+   Packed virtqueue in-order mergeable path                                       Y          Y
+   Packed virtqueue in-order non-mergeable path                                   Y          Y
+   Packed virtqueue vectorized Rx path                                                       Y
+   Packed virtqueue vectorized Tx path                                                       Y
+   ============================================ ============= ============= ============= =======
 
 QEMU Support Status
 ~~~~~~~~~~~~~~~~~~~