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sky2: add support for receive hashing

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Sky2 hardware supports hardware receive hash calculation.
Now that Receive Packet Steering is available, add support
to enable it.

This version does not depend on CONFIG_RPS. Also set_flags rejects
all values except RXHASH, so driver won't have to change next time
somebody adds a new one.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2010-04-24 20:04:12 -07:00
committed by David S. Miller
parent b7d6a43211
commit bf73130d7f
2 changed files with 91 additions and 2 deletions
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14
drivers/net/sky2.h
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@@ -694,8 +694,21 @@ enum {
TXA_CTRL = 0x0210,/* 8 bit Tx Arbiter Control Register */
TXA_TEST = 0x0211,/* 8 bit Tx Arbiter Test Register */
TXA_STAT = 0x0212,/* 8 bit Tx Arbiter Status Register */
RSS_KEY = 0x0220, /* RSS Key setup */
RSS_CFG = 0x0248, /* RSS Configuration */
};
enum {
HASH_TCP_IPV6_EX_CTRL = 1<<5,
HASH_IPV6_EX_CTRL = 1<<4,
HASH_TCP_IPV6_CTRL = 1<<3,
HASH_IPV6_CTRL = 1<<2,
HASH_TCP_IPV4_CTRL = 1<<1,
HASH_IPV4_CTRL = 1<<0,
HASH_ALL = 0x3f,
};
enum {
B6_EXT_REG = 0x0300,/* External registers (GENESIS only) */
@@ -2261,6 +2274,7 @@ struct sky2_hw {
#define SKY2_HW_NEW_LE 0x00000020 /* new LSOv2 format */
#define SKY2_HW_AUTO_TX_SUM 0x00000040 /* new IP decode for Tx */
#define SKY2_HW_ADV_POWER_CTL 0x00000080 /* additional PHY power regs */
#define SKY2_HW_RSS_BROKEN 0x00000100
u8 chip_id;
u8 chip_rev;