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-rw-r--r--target/linux/generic/patches-3.19/071-bgmac-Clean-warning-messages.patch55
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.19/071-bgmac-Clean-warning-messages.patch b/target/linux/generic/patches-3.19/071-bgmac-Clean-warning-messages.patch
new file mode 100644
index 0000000000..fd3e11d672
--- /dev/null
+++ b/target/linux/generic/patches-3.19/071-bgmac-Clean-warning-messages.patch
@@ -0,0 +1,55 @@
+From 8edfe3b6fad28da191c8fa15e4e0d8f7335a0091 Mon Sep 17 00:00:00 2001
+From: Peter Senna Tschudin <peter.senna@gmail.com>
+Date: Sat, 7 Mar 2015 12:10:26 +0100
+Subject: [PATCH] bgmac: Clean warning messages
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+On my test environment the throughput of a file transfer drops
+from 4.4MBps to 116KBps due the number of repeated warning
+messages. This patch removes the warning messages as DMA works
+correctly with addresses using 0xC0000000 bits.
+
+Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
+Acked-by: Rafał Miłecki <zajec5@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 7 -------
+ 1 file changed, 7 deletions(-)
+
+diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
+index 676ffe0..0469f72 100644
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -302,9 +302,6 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
+ slot->skb = skb;
+ slot->dma_addr = dma_addr;
+
+- if (slot->dma_addr & 0xC0000000)
+- bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
+-
+ return 0;
+ }
+
+@@ -505,8 +502,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
+ ring->mmio_base);
+ goto err_dma_free;
+ }
+- if (ring->dma_base & 0xC0000000)
+- bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
+
+ ring->unaligned = bgmac_dma_unaligned(bgmac, ring,
+ BGMAC_DMA_RING_TX);
+@@ -536,8 +531,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
+ err = -ENOMEM;
+ goto err_dma_free;
+ }
+- if (ring->dma_base & 0xC0000000)
+- bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
+
+ ring->unaligned = bgmac_dma_unaligned(bgmac, ring,
+ BGMAC_DMA_RING_RX);
+--
+1.8.4.5
+