diff options
| author |   Dai Haruki <dai.haruki@freescale.com> | 2008-12-16 15:29:52 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-12-16 15:29:52 -0800 |
| commit | b46a8454cd304b5376ba00d3457a612720e47269 (patch) | |
| tree | cf6a119d3903b519b9540585684ba1eb2ef130d6 /drivers/net/gianfar.h | |
| parent | gianfar: Convert gianfar to an of_platform_driver (diff) | |
| download | linux-dev-b46a8454cd304b5376ba00d3457a612720e47269.tar.xz linux-dev-b46a8454cd304b5376ba00d3457a612720e47269.zip | |
gianfar: Optimize interrupt coalescing configuration
Store the interrupt coalescing values in the form in which they will be
written to the interrupt coalescing registers. This puts a little overhead
into the ethtool configuration, and takes it out of the interrupt handler
Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/gianfar.h')
| -rw-r--r-- | drivers/net/gianfar.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index ca7f0a6a68c5..449f508a5640 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -189,6 +189,12 @@ extern const char gfar_driver_version[]; #define mk_ic_value(count, time) (IC_ICEN | \ mk_ic_icft(count) | \ mk_ic_ictt(time)) +#define get_icft_value(ic) (((unsigned long)ic & IC_ICFT_MASK) >> \ + IC_ICFT_SHIFT) +#define get_ictt_value(ic) ((unsigned long)ic & IC_ICTT_MASK) + +#define DEFAULT_TXIC mk_ic_value(DEFAULT_TXCOUNT, DEFAULT_TXTIME) +#define DEFAULT_RXIC mk_ic_value(DEFAULT_RXCOUNT, DEFAULT_RXTIME) #define RCTRL_PAL_MASK 0x001f0000 #define RCTRL_VLEX 0x00002000 @@ -694,8 +700,7 @@ struct gfar_private { /* Configuration info for the coalescing features */ unsigned char txcoalescing; - unsigned short txcount; - unsigned short txtime; + unsigned long txic; /* Buffer descriptor pointers */ struct txbd8 *tx_bd_base; /* First tx buffer descriptor */ @@ -717,8 +722,7 @@ struct gfar_private { /* RX Coalescing values */ unsigned char rxcoalescing; - unsigned short rxcount; - unsigned short rxtime; + unsigned long rxic; struct rxbd8 *rx_bd_base; /* First Rx buffers */ struct rxbd8 *cur_rx; /* Next free rx ring entry */ |