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From: Ivan Dyukov <i.dyukov@samsung.com>
To: dev@dpdk.org, maxime.coquelin@redhat.com, tiwei.bie@intel.com,
amorenoz@redhat.com, zhihong.wang@intel.com, xiaolong.ye@intel.com
Cc: Ivan Dyukov <i.dyukov@samsung.com>
Date: Tue, 3 Mar 2020 21:27:05 +0300
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Subject: [dpdk-dev] [PATCH v6 4/4] net/virtio-user: adding link speed devarg
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virtio driver already parses speed devarg. virtio-user should add
it to list of valid devargs and call eth_virtio_dev_init function
which init speed value.
eth_virtio_dev_init already is called from virtio_user_pmd_probe
function. The only change is required to enable speed devargs:
adding speed to list of valid devargs.
Signed-off-by: Ivan Dyukov <i.dyukov@samsung.com>
---
doc/guides/nics/virtio.rst | 8 ++++++++
drivers/net/virtio/virtio_user_ethdev.c | 5 ++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst
index 0341907ef..6286286db 100644
--- a/doc/guides/nics/virtio.rst
+++ b/doc/guides/nics/virtio.rst
@@ -410,6 +410,14 @@ Below devargs are supported by the virtio-user vdev:
It is used to enable virtio device packed virtqueue feature.
(Default: 0 (disabled))
+#. ``speed``:
+
+ 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))
+
+
Virtio paths Selection and Usage
--------------------------------
diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 074527714..45c1541c5 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -406,6 +406,8 @@ static const char *valid_args[] = {
VIRTIO_USER_ARG_IN_ORDER,
#define VIRTIO_USER_ARG_PACKED_VQ "packed_vq"
VIRTIO_USER_ARG_PACKED_VQ,
+#define VIRTIO_USER_ARG_SPEED "speed"
+ VIRTIO_USER_ARG_SPEED,
NULL
};
@@ -738,4 +740,5 @@ RTE_PMD_REGISTER_PARAM_STRING(net_virtio_user,
"server=<0|1> "
"mrg_rxbuf=<0|1> "
"in_order=<0|1> "
- "packed_vq=<0|1>");
+ "packed_vq=<0|1> "
+ "speed=<int>");
--
2.17.1