Author: dexuan
Date: Wed Feb 22 06:12:33 2017
New Revision: 314084
URL: https://svnweb.freebsd.org/changeset/base/314084
Log:
MFC: 312686
Approved by: sephe (mentor)
r312686
hyperv/hn: remove the MTU and IFF_DRV_RUNNING checking in hn_rxpkt()
It's unnecessary because the upper nework stack does the same checking.
In the case of Hyper-V SR-IOV, we need to remove the checking because
1) multicast/broadcast packets are still received through the synthetic
NIC and we need to inject the packets through the VF interface;
2) we must inject the packets even if the synthetic NIC is down, or has
a different MTU from the VF device.
Reviewed by: sephe
Approved by: sephe (mentor)
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8962
Modified:
stable/11/sys/dev/hyperv/netvsc/if_hn.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/dev/hyperv/netvsc/if_hn.c
==============================================================================
--- stable/11/sys/dev/hyperv/netvsc/if_hn.c Wed Feb 22 06:06:58 2017
(r314083)
+++ stable/11/sys/dev/hyperv/netvsc/if_hn.c Wed Feb 22 06:12:33 2017
(r314084)
@@ -2129,15 +2129,7 @@ hn_rxpkt(struct hn_rx_ring *rxr, const v
int size, do_lro = 0, do_csum = 1;
int hash_type;
- if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
- return (0);
-
- /*
- * Bail out if packet contains more data than configured MTU.
- */
- if (dlen > (ifp->if_mtu + ETHER_HDR_LEN)) {
- return (0);
- } else if (dlen <= MHLEN) {
+ if (dlen <= MHLEN) {
m_new = m_gethdr(M_NOWAIT, MT_DATA);
if (m_new == NULL) {
if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
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