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authorMichal Kubecek <mkubecek@suse.cz>2020-03-28 00:01:23 +0100
committerDavid S. Miller <davem@davemloft.net>2020-03-29 22:32:36 -0700
commit7f59fb32b0960f1e19651379d8e130bd017054bf (patch)
tree18b5dadc2a2539e921b0a47a30498b9770973537 /Documentation
parent0cf3eac8c936ae75ac5d429627b05eae895bba9d (diff)
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ethtool: provide pause parameters with PAUSE_GET request
Implement PAUSE_GET request to get pause parameters of a network device. These are traditionally available via ETHTOOL_GPAUSEPARAM ioctl request. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/networking/ethtool-netlink.rst40
1 files changed, 39 insertions, 1 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
index d4be0a63786d..43c7baf36b32 100644
--- a/Documentation/networking/ethtool-netlink.rst
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -199,6 +199,7 @@ Userspace to kernel:
``ETHTOOL_MSG_CHANNELS_SET`` set channel counts
``ETHTOOL_MSG_COALESCE_GET`` get coalescing parameters
``ETHTOOL_MSG_COALESCE_SET`` set coalescing parameters
+ ``ETHTOOL_MSG_PAUSE_GET`` get pause parameters
===================================== ================================
Kernel to userspace:
@@ -225,6 +226,7 @@ Kernel to userspace:
``ETHTOOL_MSG_CHANNELS_NTF`` channel counts
``ETHTOOL_MSG_COALESCE_GET_REPLY`` coalescing parameters
``ETHTOOL_MSG_COALESCE_NTF`` coalescing parameters
+ ``ETHTOOL_MSG_PAUSE_GET_REPLY`` pause parameters
===================================== =================================
``GET`` requests are sent by userspace applications to retrieve device
@@ -832,6 +834,42 @@ is not set), regardless of their values. Driver may impose additional
constraints on coalescing parameters and their values.
+PAUSE_GET
+============
+
+Gets channel counts like ``ETHTOOL_GPAUSE`` ioctl request.
+
+Request contents:
+
+ ===================================== ====== ==========================
+ ``ETHTOOL_A_PAUSE_HEADER`` nested request header
+ ===================================== ====== ==========================
+
+Kernel response contents:
+
+ ===================================== ====== ==========================
+ ``ETHTOOL_A_PAUSE_HEADER`` nested request header
+ ``ETHTOOL_A_PAUSE_AUTONEG`` bool pause autonegotiation
+ ``ETHTOOL_A_PAUSE_RX`` bool receive pause frames
+ ``ETHTOOL_A_PAUSE_TX`` bool transmit pause frames
+ ===================================== ====== ==========================
+
+
+PAUSE_SET
+============
+
+Sets pause parameters like ``ETHTOOL_GPAUSEPARAM`` ioctl request.
+
+Request contents:
+
+ ===================================== ====== ==========================
+ ``ETHTOOL_A_PAUSE_HEADER`` nested request header
+ ``ETHTOOL_A_PAUSE_AUTONEG`` bool pause autonegotiation
+ ``ETHTOOL_A_PAUSE_RX`` bool receive pause frames
+ ``ETHTOOL_A_PAUSE_TX`` bool transmit pause frames
+ ===================================== ====== ==========================
+
+
Request translation
===================
@@ -860,7 +898,7 @@ have their netlink replacement yet.
``ETHTOOL_SCOALESCE`` ``ETHTOOL_MSG_COALESCE_SET``
``ETHTOOL_GRINGPARAM`` ``ETHTOOL_MSG_RINGS_GET``
``ETHTOOL_SRINGPARAM`` ``ETHTOOL_MSG_RINGS_SET``
- ``ETHTOOL_GPAUSEPARAM`` n/a
+ ``ETHTOOL_GPAUSEPARAM`` ``ETHTOOL_MSG_PAUSE_GET``
``ETHTOOL_SPAUSEPARAM`` n/a
``ETHTOOL_GRXCSUM`` ``ETHTOOL_MSG_FEATURES_GET``
``ETHTOOL_SRXCSUM`` ``ETHTOOL_MSG_FEATURES_SET``