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| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-08 14:15:11 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-08 14:45:54 +0000 |
| commit | 055c52583a2794da8ba1e85a48cce3832372b12f (patch) | |
| tree | 8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /doc/guides/nics/virtio.rst | |
| parent | f239aed5e674965691846e8ce3f187dd47523689 (diff) | |
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'doc/guides/nics/virtio.rst')
| -rw-r--r-- | doc/guides/nics/virtio.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst index 4d6a8376..af82f86e 100644 --- a/doc/guides/nics/virtio.rst +++ b/doc/guides/nics/virtio.rst @@ -291,6 +291,13 @@ interrupt, Rx interrupts, and Tx interrupts. Config interrupt is used for notification of device configuration changes, especially link status (lsc). Interrupt mode is translated into Rx interrupts in the context of DPDK. +.. Note:: + + Virtio PMD already has support for receiving lsc from qemu when the link + status changes, especially when vhost user disconnects. However, it fails + to do that if the VM is created by qemu 2.6.2 or below, since the + capability to detect vhost user disconnection is introduced in qemu 2.7.0. + Prerequisites for Rx interrupts ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |