From: Felix Fietkau Date: Sun, 12 Apr 2015 22:36:16 +0200 Subject: [PATCH] bgmac: increase rx ring size from 511 to 512 Limiting it to 511 looks like a failed attempt at leaving one descriptor empty to allow the hardware to stop processing a buffer that has not been prepared yet. However, this doesn't work because this affects the total ring size as well Signed-off-by: Felix Fietkau --- --- a/drivers/net/ethernet/broadcom/bgmac.h +++ b/drivers/net/ethernet/broadcom/bgmac.h @@ -356,7 +356,7 @@ #define BGMAC_MAX_RX_RINGS 1 #define BGMAC_TX_RING_SLOTS 128 -#define BGMAC_RX_RING_SLOTS 512 - 1 /* Why -1? Well, Broadcom does that... */ +#define BGMAC_RX_RING_SLOTS 512 #define BGMAC_RX_HEADER_LEN 28 /* Last 24 bytes are unused. Well... */ #define BGMAC_RX_FRAME_OFFSET 30 /* There are 2 unused bytes between header and real data */