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Code Issues Releases Activity

Disable TX IP/TCP/UDP checksum offloading for RTL8168C/RTL8168CP.

Browse Source 
Previously only TX IP checksum offloading was disabled but it's
reported that TX checksum offloading for UDP datagrams with IP
options also generates corrupted frames.  Reporter's controller is
RTL8168CP but I guess RTL8168C also have the same issue since it
shall share the same core.

Reported and tested by:	tuexen
This commit is contained in:
Pyun YongHyeon 2014-05-13 05:19:29 +00:00
parent c732cd1af1
commit 74a034464e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=265943
1 changed files with 10 additions and 15 deletions
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25
sys/dev/re/if_re.c
View File

@ -1619,16 +1619,18 @@ re_attach(device_t dev)
ifp->if_start = re_start;
/*
* RTL8168/8111C generates wrong IP checksummed frame if the
* packet has IP options so disable TX IP checksum offloading.
* packet has IP options so disable TX 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_8168CP)
ifp->if_hwassist = CSUM_TCP | CSUM_UDP;
else
sc->rl_hwrev->rl_rev == RL_HWREV_8168CP) {
ifp->if_hwassist = 0;
ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_TSO4;
} else {
ifp->if_hwassist = CSUM_IP | CSUM_TCP | CSUM_UDP;
ifp->if_capabilities = IFCAP_HWCSUM | IFCAP_TSO4;
}
ifp->if_hwassist |= CSUM_TSO;
ifp->if_capabilities = IFCAP_HWCSUM | IFCAP_TSO4;
ifp->if_capenable = ifp->if_capabilities;
ifp->if_init = re_init;
IFQ_SET_MAXLEN(&ifp->if_snd, RL_IFQ_MAXLEN);
@ -3364,7 +3366,6 @@ re_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
struct rl_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *) data;
struct mii_data *mii;
uint32_t rev;
int error = 0;
switch (command) {
@ -3453,15 +3454,9 @@ re_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
if ((mask & IFCAP_TXCSUM) != 0 &&
(ifp->if_capabilities & IFCAP_TXCSUM) != 0) {
ifp->if_capenable ^= IFCAP_TXCSUM;
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_8168CP)
ifp->if_hwassist |= CSUM_TCP | CSUM_UDP;
else
ifp->if_hwassist |= RE_CSUM_FEATURES;
} else
if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
ifp->if_hwassist |= RE_CSUM_FEATURES;
else
ifp->if_hwassist &= ~RE_CSUM_FEATURES;
reinit = 1;
}