net/ice/base: add RSS key related macro and structures

Add define for 52 byte RSS hash key size, and add struct
ice_aqc_get_set_rss_keys comments regarding setting 40 bytes and
52 byte hash key.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Reviewed-by: Qiming Yang <qiming.yang@intel.com>
Reviewed-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/drivers/net/ice/base/ice_adminq_cmd.h b/drivers/net/ice/base/ice_adminq_cmd.h
index cb1e1ca..ed7dfae 100644 (file)
--- a/drivers/net/ice/base/ice_adminq_cmd.h
+++ b/drivers/net/ice/base/ice_adminq_cmd.h
@@ -1593,7 +1593,20 @@ struct ice_aqc_get_set_rss_key {
 
 #define ICE_AQC_GET_SET_RSS_KEY_DATA_RSS_KEY_SIZE      0x28
 #define ICE_AQC_GET_SET_RSS_KEY_DATA_HASH_KEY_SIZE     0xC
+#define ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE \
+                               (ICE_AQC_GET_SET_RSS_KEY_DATA_RSS_KEY_SIZE + \
+                                ICE_AQC_GET_SET_RSS_KEY_DATA_HASH_KEY_SIZE)
 
+/**
+ * struct ice_aqc_get_set_rss_keys - Get/Set RSS hash key command buffer
+ * @standard_rss_key: 40 most significant bytes of hash key
+ * @extended_hash_key: 12 least significant bytes of hash key
+ *
+ * Set/Get 40 byte hash key using standard_rss_key field, and set
+ * extended_hash_key field to zero. Set/Get 52 byte hash key using
+ * standard_rss_key field for 40 most significant bytes and the
+ * extended_hash_key field for the 12 least significant bytes of hash key.
+ */
 struct ice_aqc_get_set_rss_keys {
        u8 standard_rss_key[ICE_AQC_GET_SET_RSS_KEY_DATA_RSS_KEY_SIZE];
        u8 extended_hash_key[ICE_AQC_GET_SET_RSS_KEY_DATA_HASH_KEY_SIZE];