Author: yongari
Date: Wed Mar 13 02:11:45 2013
New Revision: 248227
URL: http://svnweb.freebsd.org/changeset/base/248227
Log:
Disable TX IP header checksum offloading on RL_HWREV_8168CP. The
controller generates wrong checksummed frame if the IP packet has
IP options.
Submitted by: Alexander Bluhm via brad@openbsd
Modified:
head/sys/dev/re/if_re.c
Modified: head/sys/dev/re/if_re.c
==============================================================================
--- head/sys/dev/re/if_re.c Wed Mar 13 01:40:01 2013 (r248226)
+++ head/sys/dev/re/if_re.c Wed Mar 13 02:11:45 2013 (r248227)
@@ -1587,7 +1587,8 @@ re_attach(device_t dev)
* packet has IP options so disable TX IP checksum offloading.
*/
if (sc->rl_hwrev->rl_rev == RL_HWREV_8168C ||
- sc->rl_hwrev->rl_rev == RL_HWREV_8168C_SPIN2)
+ sc->rl_hwrev->rl_rev == RL_HWREV_8168C_SPIN2 ||
+ sc->rl_hwrev->rl_rev == RL_HWREV_8168CP)
ifp->if_hwassist = CSUM_TCP | CSUM_UDP;
else
ifp->if_hwassist = CSUM_IP | CSUM_TCP | CSUM_UDP;
@@ -3419,7 +3420,8 @@ re_ioctl(struct ifnet *ifp, u_long comma
if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) {
rev = sc->rl_hwrev->rl_rev;
if (rev == RL_HWREV_8168C ||
- rev == RL_HWREV_8168C_SPIN2)
+ rev == RL_HWREV_8168C_SPIN2 ||
+ rev == RL_HWREV_8168CP)
ifp->if_hwassist |= CSUM_TCP | CSUM_UDP;
else
ifp->if_hwassist |= RE_CSUM_FEATURES;
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