ethtool ops get_rxfh_context and set_rxfh_context are used to create,
remove and access parameters associated to RSS contexts, in a similar
fashion to get_rxfh and set_rxfh.

Add a small descritopn of these callbacks in the struct ethtool_ops doc.

Signed-off-by: Maxime Chevallier <maxime.chevall...@bootlin.com>
---
 include/linux/ethtool.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index e6ebc9761822..95991e4300bf 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -260,6 +260,15 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 
*legacy_u32,
  *     will remain unchanged.
  *     Returns a negative error code or zero. An error code must be returned
  *     if at least one unsupported change was requested.
+ * @get_rxfh_context: Get the contents of the RX flow hash indirection table,
+ *     hash key, and/or hash function assiciated to the given rss context.
+ *     Returns a negative error code or zero.
+ * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting
+ *     the contents of the RX flow hash indirection table, hash key, and/or
+ *     hash function associated to the given context. Arguments which are set
+ *     to %NULL or zero will remain unchanged.
+ *     Returns a negative error code or zero. An error code must be returned
+ *     if at least one unsupported change was requested.
  * @get_channels: Get number of channels.
  * @set_channels: Set number of channels.  Returns a negative error code or
  *     zero.
-- 
2.20.1

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