Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e9c1be80 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

sky2: reduce default transmit ring 



Reduce the size of the driver transmit ring to reduce latency
and allow qdisc to do better rate control.  Also make it
obvious what the minimum transmit ring allowed is and why.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bf15fe99

drivers/net/sky2.c

+2 −2
Original line number Diff line number Diff line
@@ -65,9 +65,9 @@ 
#define RX_DEF_PENDING		RX_MAX_PENDING



#define TX_RING_SIZE		512

#define TX_DEF_PENDING		(TX_RING_SIZE - 1)

#define TX_MIN_PENDING		64

#define TX_DEF_PENDING		128

#define MAX_SKB_TX_LE		(4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)

#define TX_MIN_PENDING		(MAX_SKB_TX_LE+1)



#define STATUS_RING_SIZE	2048	/* 2 ports * (TX + 2*RX) */

#define STATUS_LE_BYTES		(STATUS_RING_SIZE*sizeof(struct sky2_status_le))