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ethtool: Support for configurable RSS hash key

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This ethtool patch primarily copies the ioctl command data structures
from/to the User space and invokes the driver hook.

Signed-off-by: Venkat Duvvuru <VenkatKumar.Duvvuru@Emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Venkata Duvvuru 2014-04-21 15:37:59 +05:30 • committed by David S. Miller
parent 862aa49164
commit 3de0b59239
3 changed files with 253 additions and 15 deletions
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13
include/linux/ethtool.h
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@ -154,13 +154,23 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
* @reset: Reset (part of) the device, as specified by a bitmask of
* flags from &enum ethtool_reset_flags. Returns a negative
* error code or zero.
* @get_rxfh_key_size: Get the size of the RX flow hash key.
* Returns zero if not supported for this specific device.
* @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
* Returns zero if not supported for this specific device.
* @get_rxfh_indir: Get the contents of the RX flow hash indirection table.
* Will not be called if @get_rxfh_indir_size returns zero.
* @get_rxfh: Get the contents of the RX flow hash indirection table and hash
* key.
* Will not be called if @get_rxfh_indir_size and @get_rxfh_key_size
* returns zero.
* Returns a negative error code or zero.
* @set_rxfh_indir: Set the contents of the RX flow hash indirection table.
* Will not be called if @get_rxfh_indir_size returns zero.
* @set_rxfh: Set the contents of the RX flow hash indirection table and
* hash key.
* Will not be called if @get_rxfh_indir_size and @get_rxfh_key_size
* returns zero.
* Returns a negative error code or zero.
* @get_channels: Get number of channels.
* @set_channels: Set number of channels. Returns a negative error code or
@ -232,7 +242,10 @@ struct ethtool_ops {
int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
int (*flash_device)(struct net_device *, struct ethtool_flash *);
int (*reset)(struct net_device *, u32 *);
u32 (*get_rxfh_key_size)(struct net_device *);
u32 (*get_rxfh_indir_size)(struct net_device *);
int (*get_rxfh)(struct net_device *, u32 *, u8 *);
int (*set_rxfh)(struct net_device *, u32 *, u8 *);
int (*get_rxfh_indir)(struct net_device *, u32 *);
int (*set_rxfh_indir)(struct net_device *, const u32 *);
void (*get_channels)(struct net_device *, struct ethtool_channels *);