diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2020-09-28 10:26:33 +0000 |
|---|---|---|
| committer |   Beno�t Ganne <bganne@cisco.com> | 2020-09-28 16:47:30 +0000 |
| commit | e347acbc31111504c015531e8ad764a86d489309 (patch) | |
| tree | 3a72d961fd97b9ce7985865d89b0c45d27cab2fc /src/vat | |
| parent | 7741afaf5c66a5d7ed1d2d76ae36a81ec24fdaaa (diff) | |
virtio: add packet buffering on tx
Type: feature
This patch adds packet buffering on tx for
slow backend which have some jitter/delays
in freeing the vrings.
There are some limitations to the current design:
1) It only works in poll mode.
2) Atleast 1 rx queue of an interface (with buffering
enabled) should be placed on each worker and main thread.
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: Ib93c350298b228e80426e58ac77f3bbc93b8be27
Diffstat (limited to 'src/vat')
| -rw-r--r-- | src/vat/api_format.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/vat/api_format.c b/src/vat/api_format.c index d24a406ce01..1c226517a66 100644 --- a/src/vat/api_format.c +++ b/src/vat/api_format.c @@ -5621,6 +5621,8 @@ api_virtio_pci_create_v2 (vat_main_t * vam) virtio_flags |= VIRTIO_API_FLAG_PACKED; else if (unformat (i, "in-order")) virtio_flags |= VIRTIO_API_FLAG_IN_ORDER; + else if (unformat (i, "buffering")) + virtio_flags |= VIRTIO_API_FLAG_BUFFERING; else break; } @@ -15113,7 +15115,7 @@ _(tap_delete_v2, \ "<vpp-if-name> | sw_if_index <id>") \ _(sw_interface_tap_v2_dump, "") \ _(virtio_pci_create_v2, \ - "pci-addr <pci-address> [use_random_mac | hw-addr <mac-addr>] [features <hex-value>] [gso-enabled [gro-coalesce] | csum-offload-enabled] [packed] [in-order]") \ + "pci-addr <pci-address> [use_random_mac | hw-addr <mac-addr>] [features <hex-value>] [gso-enabled [gro-coalesce] | csum-offload-enabled] [packed] [in-order] [buffering]") \ _(virtio_pci_delete, \ "<vpp-if-name> | sw_if_index <id>") \ _(sw_interface_virtio_pci_dump, "") \ |