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