diff options
Diffstat (limited to 'sys/dev/e1000/if_em.c')
| -rw-r--r-- | sys/dev/e1000/if_em.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c index c1a9ce8..b6c98b1 100644 --- a/sys/dev/e1000/if_em.c +++ b/sys/dev/e1000/if_em.c @@ -1371,8 +1371,15 @@ em_init_locked(struct adapter *adapter) if_clearhwassist(ifp); if (if_getcapenable(ifp) & IFCAP_TXCSUM) if_sethwassistbits(ifp, CSUM_TCP | CSUM_UDP, 0); - if (if_getcapenable(ifp) & IFCAP_TSO4) - if_sethwassistbits(ifp, CSUM_TSO, 0); + /* + ** There have proven to be problems with TSO when not + ** at full gigabit speed, so disable the assist automatically + ** when at lower speeds. -jfv + */ + if (if_getcapenable(ifp) & IFCAP_TSO4) { + if (adapter->link_speed == SPEED_1000) + if_sethwassistbits(ifp, CSUM_TSO, 0); + } /* Configure for OS presence */ em_init_manageability(adapter); |
