RE: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) 1.0.0.7 md5/sha1 corrupted using NFS and samba (updated) Version 2
From: Eric Dumazet <hidden>
Date: 2013-03-24 17:22:51
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
On Sun, 2013-03-24 at 05:42 +0000, Huang, Xiong wrote:
1. pages cross 4GB bouandary ? or overlap with each other ?
Normally this should not happen. However the frame could span two 4K pages. (physically contigous, and not spanning a 32K boundary)
2. try to set hw->dmaw_block = atl1e_dma_req_128 3. can you print reg15C0 content when the NIC is in normal tx/rx status ? 4. other possible may be related the diff register configuration, but it's very difficult to compare with Windows driver :(
What could be tried is to remove the possibility of page spanning.
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 441f5bf..d0f4dd1 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h@@ -1849,7 +1849,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) kfree_skb(skb); } -#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768) +#define NETDEV_FRAG_PAGE_MAX_ORDER 0 #define NETDEV_FRAG_PAGE_MAX_SIZE (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER) #define NETDEV_PAGECNT_MAX_BIAS NETDEV_FRAG_PAGE_MAX_SIZE