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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>
This commit is contained in:
Padmanabh Ratnakar 2012-07-13 02:45:51 +00:00 committed by David S. Miller
parent 036be6dbcf
commit 73dea3983a
1 changed files with 12 additions and 2 deletions
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14
drivers/net/ethernet/emulex/benet/be_cmds.h
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@ -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