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authorPadmanabh Ratnakar <padmanabh.ratnakar@emulex.com>2012-07-13 02:45:51 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-16 23:02:36 -0700
commit73dea3983a9d2e413e1c065ed4e132a7d4127929 (patch)
treeb35e3b2f7de7ed456654963ecb1288a19c6fa888
parent036be6dbcfbe3da14be9b3463b94a5f79d8a2d71 (diff)
downloadlinux-73dea3983a9d2e413e1c065ed4e132a7d4127929.tar.bz2
be2net: Add description about various RSS hash types
Incorporated review comment from Eric Dumazet. Added description about different RSS hash types which adapter is capable of. Will add support for ETHTOOL_GRXFH and ETHTOOL_SRXFX as suggested by Ben Hutchings in a later patch. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 45d70def92d6..d5a4dedf1132 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1082,8 +1082,18 @@ struct be_cmd_resp_query_fw_cfg {
u32 function_caps;
};
-/******************** RSS Config *******************/
-/* RSS types */
+/******************** RSS Config ****************************************/
+/* RSS type Input parameters used to compute RX hash
+ * RSS_ENABLE_IPV4 SRC IPv4, DST IPv4
+ * RSS_ENABLE_TCP_IPV4 SRC IPv4, DST IPv4, TCP SRC PORT, TCP DST PORT
+ * RSS_ENABLE_IPV6 SRC IPv6, DST IPv6
+ * RSS_ENABLE_TCP_IPV6 SRC IPv6, DST IPv6, TCP SRC PORT, TCP DST PORT
+ * RSS_ENABLE_UDP_IPV4 SRC IPv4, DST IPv4, UDP SRC PORT, UDP DST PORT
+ * RSS_ENABLE_UDP_IPV6 SRC IPv6, DST IPv6, UDP SRC PORT, UDP DST PORT
+ *
+ * When multiple RSS types are enabled, HW picks the best hash policy
+ * based on the type of the received packet.
+ */
#define RSS_ENABLE_NONE 0x0
#define RSS_ENABLE_IPV4 0x1
#define RSS_ENABLE_TCP_IPV4 0x2