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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-05 14:54:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-05 14:54:29 -0700
commitcc998ff8811530be521f6b316f37ab7676a07938 (patch)
treea054b3bf4b2ef406bf756a6cfc9be2f9115f17ae /net/mac80211/ht.c
parent57d730924d5cc2c3e280af16a9306587c3a511db (diff)
parent0d40f75bdab241868c0eb6f97aef9f8b3a66f7b3 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller: "Noteworthy changes this time around: 1) Multicast rejoin support for team driver, from Jiri Pirko. 2) Centralize and simplify TCP RTT measurement handling in order to reduce the impact of bad RTO seeding from SYN/ACKs. Also, when both timestamps and local RTT measurements are available prefer the later because there are broken middleware devices which scramble the timestamp. From Yuchung Cheng. 3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel memory consumed to queue up unsend user data. From Eric Dumazet. 4) Add a "physical port ID" abstraction for network devices, from Jiri Pirko. 5) Add a "suppress" operation to influence fib_rules lookups, from Stefan Tomanek. 6) Add a networking development FAQ, from Paul Gortmaker. 7) Extend the information provided by tcp_probe and add ipv6 support, from Daniel Borkmann. 8) Use RCU locking more extensively in openvswitch data paths, from Pravin B Shelar. 9) Add SCTP support to openvswitch, from Joe Stringer. 10) Add EF10 chip support to SFC driver, from Ben Hutchings. 11) Add new SYNPROXY netfilter target, from Patrick McHardy. 12) Compute a rate approximation for sending in TCP sockets, and use this to more intelligently coalesce TSO frames. Furthermore, add a new packet scheduler which takes advantage of this estimate when available. From Eric Dumazet. 13) Allow AF_PACKET fanouts with random selection, from Daniel Borkmann. 14) Add ipv6 support to vxlan driver, from Cong Wang" Resolved conflicts as per discussion. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits) openvswitch: Fix alignment of struct sw_flow_key. netfilter: Fix build errors with xt_socket.c tcp: Add missing braces to do_tcp_setsockopt caif: Add missing braces to multiline if in cfctrl_linkup_request bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize vxlan: Fix kernel panic on device delete. net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls net: mvneta: properly disable HW PHY polling and ensure adjust_link() works icplus: Use netif_running to determine device state ethernet/arc/arc_emac: Fix huge delays in large file copies tuntap: orphan frags before trying to set tx timestamp tuntap: purge socket error queue on detach qlcnic: use standard NAPI weights ipv6:introduce function to find route for redirect bnx2x: VF RSS support - VF side bnx2x: VF RSS support - PF side vxlan: Notify drivers for listening UDP port changes net: usbnet: update addr_assign_type if appropriate driver/net: enic: update enic maintainers and driver driver/net: enic: Exposing symbols for Cisco's low latency driver ...
Diffstat (limited to 'net/mac80211/ht.c')
-rw-r--r--net/mac80211/ht.c53
1 files changed, 38 insertions, 15 deletions
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index f83534f6a2ee..529bf58bc145 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -19,13 +19,14 @@
#include "ieee80211_i.h"
#include "rate.h"
-static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata,
+static void __check_htcap_disable(struct ieee80211_ht_cap *ht_capa,
+ struct ieee80211_ht_cap *ht_capa_mask,
struct ieee80211_sta_ht_cap *ht_cap,
u16 flag)
{
__le16 le_flag = cpu_to_le16(flag);
- if (sdata->u.mgd.ht_capa_mask.cap_info & le_flag) {
- if (!(sdata->u.mgd.ht_capa.cap_info & le_flag))
+ if (ht_capa_mask->cap_info & le_flag) {
+ if (!(ht_capa->cap_info & le_flag))
ht_cap->cap &= ~flag;
}
}
@@ -33,13 +34,30 @@ static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata,
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_ht_cap *ht_cap)
{
- u8 *scaps = (u8 *)(&sdata->u.mgd.ht_capa.mcs.rx_mask);
- u8 *smask = (u8 *)(&sdata->u.mgd.ht_capa_mask.mcs.rx_mask);
+ struct ieee80211_ht_cap *ht_capa, *ht_capa_mask;
+ u8 *scaps, *smask;
int i;
if (!ht_cap->ht_supported)
return;
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_STATION:
+ ht_capa = &sdata->u.mgd.ht_capa;
+ ht_capa_mask = &sdata->u.mgd.ht_capa_mask;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ht_capa = &sdata->u.ibss.ht_capa;
+ ht_capa_mask = &sdata->u.ibss.ht_capa_mask;
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ return;
+ }
+
+ scaps = (u8 *)(&ht_capa->mcs.rx_mask);
+ smask = (u8 *)(&ht_capa_mask->mcs.rx_mask);
+
/* NOTE: If you add more over-rides here, update register_hw
* ht_capa_mod_msk logic in main.c as well.
* And, if this method can ever change ht_cap.ht_supported, fix
@@ -55,28 +73,32 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
}
/* Force removal of HT-40 capabilities? */
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40);
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_SGI_40);
/* Allow user to disable SGI-20 (SGI-40 is handled above) */
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_20);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_SGI_20);
/* Allow user to disable the max-AMSDU bit. */
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_MAX_AMSDU);
/* Allow user to decrease AMPDU factor */
- if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
+ if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR) {
- u8 n = sdata->u.mgd.ht_capa.ampdu_params_info
- & IEEE80211_HT_AMPDU_PARM_FACTOR;
+ u8 n = ht_capa->ampdu_params_info &
+ IEEE80211_HT_AMPDU_PARM_FACTOR;
if (n < ht_cap->ampdu_factor)
ht_cap->ampdu_factor = n;
}
/* Allow the user to increase AMPDU density. */
- if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
+ if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) {
- u8 n = (sdata->u.mgd.ht_capa.ampdu_params_info &
+ u8 n = (ht_capa->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY)
>> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
if (n > ht_cap->ampdu_density)
@@ -112,7 +134,8 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
* we advertised a restricted capability set to. Override
* our own capabilities and then use those below.
*/
- if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ if ((sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
ieee80211_apply_htcap_overrides(sdata, &own_cap);