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via-velocity: Add ethtool interrupt coalescing support

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(Partially from the upstream VIA driver). Tweaking the number of
frames-per-interrupt and timer-until-interrupt can reduce the amount of
CPU work quite a lot.

Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Simon Kagstrom
2009-11-25 22:10:12 +00:00
committed by David S. Miller
parent da95b2d422
commit 6dfc4b95b2
2 changed files with 165 additions and 2 deletions
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7
drivers/net/via-velocity.h
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@@ -1005,7 +1005,8 @@ struct mac_regs {
volatile __le32 RDBaseLo; /* 0x38 */
volatile __le16 RDIdx; /* 0x3C */
volatile __le16 reserved_3E;
volatile u8 TQETMR; /* 0x3E, VT3216 and above only */
volatile u8 RQETMR; /* 0x3F, VT3216 and above only */
volatile __le32 TDBaseLo[4]; /* 0x40 */
@@ -1491,6 +1492,10 @@ struct velocity_opt {
int rx_bandwidth_hi;
int rx_bandwidth_lo;
int rx_bandwidth_en;
int rxqueue_timer;
int txqueue_timer;
int tx_intsup;
int rx_intsup;
u32 flags;
};