From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Thu, 2 Aug 2012 11:59:27 +0000 (+0800)
Subject: igb: Change TXCSUM does not require reinitialize hardware
X-Git-Tag: v3.2.0~479
X-Git-Url: https://gitweb.dragonflybsd.org/~tuxillo/dragonfly.git/commitdiff_plain/77d8cab9c37cd0b67d02f66873c76dae11bbdc96

igb: Change TXCSUM does not require reinitialize hardware
---

diff --git a/sys/dev/netif/igb/if_igb.c b/sys/dev/netif/igb/if_igb.c
index a3d695c561..705ae37fe7 100644
--- a/sys/dev/netif/igb/if_igb.c
+++ b/sys/dev/netif/igb/if_igb.c
@@ -807,14 +807,21 @@ igb_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
 	case SIOCSIFCAP:
 		reinit = 0;
 		mask = ifr->ifr_reqcap ^ ifp->if_capenable;
-		if (mask & IFCAP_HWCSUM) {
-			ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
+		if (mask & IFCAP_RXCSUM) {
+			ifp->if_capenable ^= IFCAP_RXCSUM;
 			reinit = 1;
 		}
 		if (mask & IFCAP_VLAN_HWTAGGING) {
 			ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 			reinit = 1;
 		}
+		if (mask & IFCAP_TXCSUM) {
+			ifp->if_capenable ^= IFCAP_TXCSUM;
+			if (ifp->if_capenable & IFCAP_TXCSUM)
+				ifp->if_hwassist |= IGB_CSUM_FEATURES;
+			else
+				ifp->if_hwassist &= ~IGB_CSUM_FEATURES;
+		}
 		if (mask & IFCAP_RSS)
 			ifp->if_capenable ^= IFCAP_RSS;
 		if (reinit && (ifp->if_flags & IFF_RUNNING))
@@ -851,12 +858,6 @@ igb_init(void *xsc)
 
 	E1000_WRITE_REG(&sc->hw, E1000_VET, ETHERTYPE_VLAN);
 
-	/* Set hardware offload abilities */
-	if (ifp->if_capenable & IFCAP_TXCSUM)
-		ifp->if_hwassist = IGB_CSUM_FEATURES;
-	else
-		ifp->if_hwassist = 0;
-
 	/* Configure for OS presence */
 	igb_get_mgmt(sc);