Author: adrian
Date: Thu Feb 9 23:29:57 2017
New Revision: 313492
URL: https://svnweb.freebsd.org/changeset/base/313492
Log:
[net80211] don't bother doing fragmentation if the driver supports
fragmentation offload.
Tested:
* ath10k, which does its own fragmentation in firmware.
Modified:
head/sys/net80211/ieee80211_output.c
Modified: head/sys/net80211/ieee80211_output.c
==============================================================================
--- head/sys/net80211/ieee80211_output.c Thu Feb 9 23:20:55 2017
(r313491)
+++ head/sys/net80211/ieee80211_output.c Thu Feb 9 23:29:57 2017
(r313492)
@@ -1631,12 +1631,20 @@ ieee80211_encap(struct ieee80211vap *vap
__func__);
}
+ /*
+ * Check if xmit fragmentation is required.
+ *
+ * If the hardware does fragmentation offload, then don't bother
+ * doing it here.
+ */
+ if (IEEE80211_CONF_FRAG_OFFLOAD(ic))
+ txfrag = 0;
+ else
+ txfrag = (m->m_pkthdr.len > vap->iv_fragthreshold &&
+ !IEEE80211_IS_MULTICAST(wh->i_addr1) &&
+ (vap->iv_caps & IEEE80211_C_TXFRAG) &&
+ (m->m_flags & (M_FF | M_AMPDU_MPDU)) == 0);
- /* check if xmit fragmentation is required */
- txfrag = (m->m_pkthdr.len > vap->iv_fragthreshold &&
- !IEEE80211_IS_MULTICAST(wh->i_addr1) &&
- (vap->iv_caps & IEEE80211_C_TXFRAG) &&
- (m->m_flags & (M_FF | M_AMPDU_MPDU)) == 0);
if (key != NULL) {
/*
* IEEE 802.1X: send EAPOL frames always in the clear.
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