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authorDai Haruki <dai.haruki@freescale.com>2008-12-16 15:29:52 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-16 15:29:52 -0800
commitb46a8454cd304b5376ba00d3457a612720e47269 (patch)
treecf6a119d3903b519b9540585684ba1eb2ef130d6 /drivers/net/gianfar.h
parentb31a1d8b41513b96e9c7ec2f68c5734cef0b26a4 (diff)
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.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index ca7f0a6a68c..449f508a564 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 */