diff options
| author | Sara Sharon <sara.sharon@intel.com> | 2016-10-18 23:12:11 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-10-19 12:12:44 +0200 |
| commit | f3fe4e93dd6346c01fd4070ae02ec746fbae73bb (patch) | |
| tree | 3ab6bd9fe32aec5bbc380a6a3ba250069b1131a1 /net/mac80211 | |
| parent | 0aa419ec6e7b98d485f6c66a62a90965eda3c1bb (diff) | |
| download | linux-f3fe4e93dd6346c01fd4070ae02ec746fbae73bb.tar.gz linux-f3fe4e93dd6346c01fd4070ae02ec746fbae73bb.tar.bz2 linux-f3fe4e93dd6346c01fd4070ae02ec746fbae73bb.zip | |
mac80211: add a HW flag for supporting HW TX fragmentation
Currently mac80211 determines whether HW does fragmentation
by checking whether the set_frag_threshold callback is set
or not.
However, some drivers may want to set the HW fragmentation
capability depending on HW generation.
Allow this by checking a HW flag instead of checking the
callback.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
[added the flag to ath10k and wlcore]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/debugfs.c | 1 | ||||
| -rw-r--r-- | net/mac80211/main.c | 4 | ||||
| -rw-r--r-- | net/mac80211/tx.c | 4 | ||||
| -rw-r--r-- | net/mac80211/wpa.c | 2 |
4 files changed, 8 insertions, 3 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index f56e2f487d09..e02ba42ca827 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -210,6 +210,7 @@ static const char *hw_flag_names[] = { FLAG(TX_AMSDU), FLAG(TX_FRAG_LIST), FLAG(REPORTS_LOW_ACK), + FLAG(SUPPORTS_TX_FRAG), #undef FLAG }; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 1075ac24c8c5..0d9163c16dda 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -821,6 +821,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) !local->ops->tdls_recv_channel_switch)) return -EOPNOTSUPP; + if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_TX_FRAG) && + !local->ops->set_frag_threshold)) + return -EINVAL; + if (WARN_ON(local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_NAN) && (!local->ops->start_nan || !local->ops->stop_nan))) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 772e36909fa3..62ccaf6f585d 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -934,7 +934,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) if (info->flags & IEEE80211_TX_CTL_DONTFRAG) return TX_CONTINUE; - if (tx->local->ops->set_frag_threshold) + if (ieee80211_hw_check(&tx->local->hw, SUPPORTS_TX_FRAG)) return TX_CONTINUE; /* @@ -2800,7 +2800,7 @@ void ieee80211_check_fast_xmit(struct sta_info *sta) /* fast-xmit doesn't handle fragmentation at all */ if (local->hw.wiphy->frag_threshold != (u32)-1 && - !local->ops->set_frag_threshold) + !ieee80211_hw_check(&local->hw, SUPPORTS_TX_FRAG)) goto out; rcu_read_lock(); diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index b48c1e13e281..c24934544f9c 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -57,7 +57,7 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) if (info->control.hw_key && (info->flags & IEEE80211_TX_CTL_DONTFRAG || - tx->local->ops->set_frag_threshold) && + ieee80211_hw_check(&tx->local->hw, SUPPORTS_TX_FRAG)) && !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) { /* hwaccel - with no need for SW-generated MMIC */ return TX_CONTINUE; |