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| author | Rafał Miłecki <zajec5@gmail.com> | 2015-04-23 19:11:11 +0000 |
|---|---|---|
| committer | Rafał Miłecki <zajec5@gmail.com> | 2015-04-23 19:11:11 +0000 |
| commit | e175b199f8b5947ee498d049b2f4dff694e08e72 (patch) | |
| tree | 4b05b80ec4ce1411d37dba7006cc5a8534672108 /target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch | |
| parent | 62e7f07615192b909ddb71408e67c4938b08b3cc (diff) | |
| download | upstream-e175b199f8b5947ee498d049b2f4dff694e08e72.tar.gz upstream-e175b199f8b5947ee498d049b2f4dff694e08e72.tar.bz2 upstream-e175b199f8b5947ee498d049b2f4dff694e08e72.zip | |
kernel: backport rest of bgmac patches to 4.0
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 45573
Diffstat (limited to 'target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch')
| -rw-r--r-- | target/linux/generic/patches-4.0/072-09-bgmac-increase-rx-ring-size-from-511-to-512.patch | 23 |
1 files changed, 23 insertions, 0 deletions
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 0000000000..4888cc32af --- /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 <nbd@openwrt.org> +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 <nbd@openwrt.org> +--- + +--- 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 */ |