ethtool: Define and apply a default policy for RX flow hash indirection
authorBen Hutchings <bhutchings@solarflare.com>
Thu, 15 Dec 2011 13:56:49 +0000 (13:56 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 16 Dec 2011 18:53:18 +0000 (13:53 -0500)
commit278bc4296bd64ffd1d3913b487dc8a520e423a7a
tree87781870cf9b96398a90fae6ebe1dae6d43d9ea4
parent7850f63f1620512631445b901ae11cd149e7375c
ethtool: Define and apply a default policy for RX flow hash indirection

All drivers that support modification of the RX flow hash indirection
table initialise it in the same way: RX rings are assigned to table
entries in rotation.  Make that default policy explicit by having them
call a ethtool_rxfh_indir_default() function.

In the ethtool core, add support for a zero size value for
ETHTOOL_SRXFHINDIR, which resets the table to this default.

Partly-suggested-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
drivers/net/ethernet/sfc/efx.c
drivers/net/vmxnet3/vmxnet3_drv.c
include/linux/ethtool.h
net/core/ethtool.c