You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Herbert Xu 683a2aa339 e1000: Do not truncate TSO TCP header with 82544 workaround ... The e1000 driver has a workaround for 82544 on PCI-X where if the terminating byte of a buffer is at addresses 0-3 mod 8, then 4 bytes are shaved off it and defered to a new segment. This is due to an erratum that could otherwise cause TX hangs. Unfortunately this breaks TSO because it may cause the TCP header to be split over two segments which itself causes TX hangs. The solution is to pull 4 bytes of data up from the next segment rather than pushing 4 bytes off. This ensures the TCP header remains in one piece and works around the PCI-X hang. This patch is based on one from Jesse Brandeburg. This bug has been trigered by both CONFIG_DEBUG_SLAB as well as Xen. Note that the only reason we don't see this normally is because the TCP stack starts writing from the end, i.e., it writes the TCP header first then slaps on the IP header, etc. So the end of the TCP header (skb->tail - 1 here) is always aligned correctly. Had we made the start of the IP header (e.g., IPv6) 8-byte aligned instead, this would happen for normal TCP traffic as well. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- Signed-off-by: Jeff Garzik <jeff@garzik.org>		18 years ago
..
Makefile	e100, e1000, ixgb: update copyright header and remove LICENSE	19 years ago
e1000.h	e1000: add dynamic itr modes	18 years ago
e1000_ethtool.c	e1000: 3 new driver stats for managability testing	18 years ago
e1000_hw.c	e1000: 3 new driver stats for managability testing	18 years ago
e1000_hw.h	e1000: 3 new driver stats for managability testing	18 years ago
e1000_main.c	e1000: Do not truncate TSO TCP header with 82544 workaround	18 years ago
e1000_osdep.h	e1000: rename ICH8 flash macros	18 years ago
e1000_param.c	[PATCH] e1000: The user-supplied itr setting needs the lower 2 bits masked off	18 years ago