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Message-Id: <1429006082-23489-6-git-send-email-nbd@openwrt.org>
Date: Tue, 14 Apr 2015 12:07:59 +0200
From: Felix Fietkau <nbd@...nwrt.org>
To: netdev@...r.kernel.org
Cc: zajec5@...il.com, hauke@...ke-m.de
Subject: [PATCH v7 6/9] 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 <nbd@...nwrt.org>
---
drivers/net/ethernet/broadcom/bgmac.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 3db0d52..e45e303 100644
--- 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 */
--
2.2.2
--
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