We experimented with more descriptor buffer writebacks and found that values larger than 8 give HW problems, but 8 is safe and gives us some improved performance.
Signed-off-by: Jesse Brandeburg <[EMAIL PROTECTED]> Signed-off-by: Auke Kok <[EMAIL PROTECTED]> --- drivers/net/ixgb/ixgb.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/ixgb/ixgb.h b/drivers/net/ixgb/ixgb.h index a1a7f3b..50ffe90 100644 --- a/drivers/net/ixgb/ixgb.h +++ b/drivers/net/ixgb/ixgb.h @@ -111,7 +111,7 @@ struct ixgb_adapter; #define IXGB_RXBUFFER_16384 16384 /* How many Rx Buffers do we bundle into one write to the hardware ? */ -#define IXGB_RX_BUFFER_WRITE 4 /* Must be power of 2 */ +#define IXGB_RX_BUFFER_WRITE 8 /* Must be power of 2 */ /* only works for sizes that are powers of 2 */ #define IXGB_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1))) --- Auke Kok <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
