From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001 From: James <> Date: Wed, 4 Nov 2015 11:49:21 +0000 Subject: trunk-47381 --- ...mac-increase-rx-ring-size-from-511-to-512.patch | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch (limited to 'target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch') diff --git a/target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch b/target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch new file mode 100644 index 0000000..4888cc3 --- /dev/null +++ b/target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch @@ -0,0 +1,23 @@ +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 */ -- cgit v1.2.3