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28 lines
1.0 KiB
Diff
28 lines
1.0 KiB
Diff
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From 7c96998ebc8cc9c71216b80de3f77114f29b148a Mon Sep 17 00:00:00 2001
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From: Camelia Groza <camelia.groza@nxp.com>
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Date: Mon, 17 Sep 2018 12:39:24 +0300
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Subject: [PATCH] sdk_dpaa: ls1043a errata: align skb_shinfo
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Make sure the skb shared info is cache-line aligned when realigning
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egress frames.
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Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
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---
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drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
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+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
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@@ -830,8 +830,10 @@ static struct sk_buff *a010022_realign_s
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/* For the new skb we only need the old one's data (both non-paged and
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* paged). We can skip the old tailroom.
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+ *
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+ * Make sure the skb_shinfo is cache-line aligned.
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*/
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- nsize = headroom + skb->len +
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+ nsize = SMP_CACHE_BYTES + DPA_SKB_SIZE(headroom + skb->len) +
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SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
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/* Reserve enough memory to accommodate Jumbo frames */
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