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* tcp: use TCP_INIT_CWND in tcp_fixup_sndbuf()Eric Dumazet2011-10-19
| | | | | | | | | Initial cwnd being 10 (TCP_INIT_CWND) instead of 3, change tcp_fixup_sndbuf() to get more than 16384 bytes (sysctl_tcp_wmem[1]) in initial sk_sndbuf Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Allow skb_recycle_check to be done in stagesAndy Fleming2011-10-19
| | | | | | | | | | | | | skb_recycle_check resets the skb if it's eligible for recycling. However, there are times when a driver might want to optionally manipulate the skb data with the skb before resetting the skb, but after it has determined eligibility. We do this by splitting the eligibility check from the skb reset, creating two inline functions to accomplish that task. Signed-off-by: Andy Fleming <afleming@freescale.com> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add skb frag size accessorsEric Dumazet2011-10-19
| | | | | | | | | | | To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm6: Don't call icmpv6_send on local errorSteffen Klassert2011-10-18
| | | | | | | | | | | Calling icmpv6_send() on a local message size error leads to an incorrect update of the path mtu. So use xfrm6_local_rxpmtu() to notify about the pmtu if the IPV6_DONTFRAG socket option is set on an udp or raw socket, according RFC 3542 and use ipv6_local_error() otherwise. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Fix IPsec slowpath fragmentation problemSteffen Klassert2011-10-18
| | | | | | | | | | | | | ip6_append_data() builds packets based on the mtu from dst_mtu(rt->dst.path). On IPsec the effective mtu is lower because we need to add the protocol headers and trailers later when we do the IPsec transformations. So after the IPsec transformations the packet might be too big, which leads to a slowpath fragmentation then. This patch fixes this by building the packets based on the lower IPsec mtu from dst_mtu(&rt->dst) and adapts the exthdr handling to this. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Remove superfluous NULL pointer check in ipv6_local_rxpmtuSteffen Klassert2011-10-18
| | | | | | | | | The pointer to mtu_info is taken from the common buffer of the skb, thus it can't be a NULL pointer. This patch removes this check on mtu_info. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: Simplify the replay check and advance functionsSteffen Klassert2011-10-18
| | | | | | | | The replay check and replay advance functions had some code duplications. This patch removes the duplications. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: allow vlan traffic to be received under bondJohn Fastabend2011-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following configuration used to work as I expected. At least we could use the fcoe interfaces to do MPIO and the bond0 iface to do load balancing or failover. ---eth2.228-fcoe | eth2 -----| | |---- bond0 | eth3 -----| | ---eth3.228-fcoe This worked because of a change we added to allow inactive slaves to rx 'exact' matches. This functionality was kept intact with the rx_handler mechanism. However now the vlan interface attached to the active slave never receives traffic because the bonding rx_handler updates the skb->dev and goto's another_round. Previously, the vlan_do_receive() logic was called before the bonding rx_handler. Now by the time vlan_do_receive calls vlan_find_dev() the skb->dev is set to bond0 and it is clear no vlan is attached to this iface. The vlan lookup fails. This patch moves the VLAN check above the rx_handler. A VLAN tagged frame is now routed to the eth2.228-fcoe iface in the above schematic. Untagged frames continue to the bond0 as normal. This case also remains intact, eth2 --> bond0 --> vlan.228 Here the skb is VLAN tagged but the vlan lookup fails on eth2 causing the bonding rx_handler to be called. On the second pass the vlan lookup is on the bond0 iface and completes as expected. Putting a VLAN.228 on both the bond0 and eth2 device will result in eth2.228 receiving the skb. I don't think this is completely unexpected and was the result prior to the rx_handler result. Note, the same setup is also used for other storage traffic that MPIO is used with eg. iSCSI and similar setups can be contrived without storage protocols. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Jesse Gross <jesse@nicira.com> Reviewed-by: Jiri Pirko <jpirko@redhat.com> Tested-by: Hans Schillstrom <hams.schillstrom@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* l2tp: give proper headroom in pppol2tp_xmit()Eric Dumazet2011-10-18
| | | | | | | | | | | | | | pppol2tp_xmit() calls skb_cow_head(skb, 2) before calling l2tp_xmit_skb() Then l2tp_xmit_skb() calls again skb_cow_head(skb, large_headroom) This patchs changes the first skb_cow_head() call to supply the needed headroom to make sure at most one (expensive) pskb_expand_head() is done. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* macvlan: handle fragmented multicast framesEric Dumazet2011-10-18
| | | | | | | | | | | Fragmented multicast frames are delivered to a single macvlan port, because ip defrag logic considers other samples are redundant. Implement a defrag step before trying to send the multicast frame. Reported-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: remove a rcu_read_lock in ndisc_constructorRoy.Li2011-10-17
| | | | | | | | in6_dev_get(dev) takes a reference on struct inet6_dev, we dont need rcu locking in ndisc_constructor() Signed-off-by: Roy.Li <rongqing.li@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* can: remove references to berlios mailinglistMarc Kleine-Budde2011-10-17
| | | | | | | | | The BerliOS project, which currently hosts our mailinglist, will close with the end of the year. Now take the chance and remove all occurrences of the mailinglist address from the source files. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/flow: Fix potential memory leakhuajun li2011-10-17
| | | | | | | | While preparing net flow caches, once a fail may cause potential memory leak , fix it. Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵John W. Linville2011-10-17
|\ | | | | | | git://git.infradead.org/users/linville/wireless-next into for-davem
| * mac80211: Provide station flags to cfg80211Helmut Schaa2011-10-14
| | | | | | | | | | | | | | | | Only station flags that are already defined in nl80211 are added for now. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * nl80211: Add sta_flags to the station infoHelmut Schaa2011-10-14
| | | | | | | | | | | | | | | | | | | | Reuse the already existing struct nl80211_sta_flag_update to specify both, a flag mask and the flag set itself. This means nl80211_sta_flag_update is now used for setting station flags and also for getting station flags. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: fix TID for null poll responseJohannes Berg2011-10-14
| | | | | | | | | | | | | | | | | | The queue mapping/TID for non-QoS null data responses to is never set, making it default to BK. Fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: reformat TX unauthorised checkJohannes Berg2011-10-14
| | | | | | | | | | | | | | | | | | Reformat the check, the indentation is completely strange. Also change the last part of the condition to make the code shorter. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: Populate radiotap header with MCS info for TX framesHelmut Schaa2011-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mac80211 already filled in the MCS rate info for rx'ed frames but tx'ed frames that are sent to a monitor interface during the status callback lack this information. Add the radiotap fields for MCS info to ieee80211_tx_status_rtap_hdr and populate them when sending tx'ed frames to the monitors. The needed headroom is only extended by one byte since we don't include legacy rate information in the rtap header for HT frames. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: Build TX radiotap header dynamicallyHelmut Schaa2011-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the ieee80211_tx_status_rtap_hdr struct and instead build the rtap header dynamically. This makes it easier to extend the rtap header generation in the future. Add ieee80211_tx_radiotap_len to calculate the expected size of the rtap header before generating it. Since we can't check if the rtap header fits into the requested headroom during compile time anymore add a WARN_ON_ONCE. Also move the actual rtap header generation into its own function. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: dont orphan TX skbJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was another workaround for truesize "bugs". The reason we did this was that when we orphaned the SKB it wouldn't be truesize-checked later. Now that the check is gone (and we just charge the former smaller size to the socket) there's no longer a reason to orphan the skb here. Keep the skb charged to the socket until it is really freed (or orphaned in TX status). This helps flow control and allows us to get at the socket later for other purposes. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: dont adjust truesizeJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to adjust truesize. The history of this was that we always ran into skb_truesize_bug (via skb_truesize_check) which has since been removed in commit 92a0acce186cd. skb_truesize_check() checked that truesize was bigger or equal to the actual allocation, which would trigger in mac80211 due to header adding. The check no longer exists and we shouldn't be messing with the truesize anwyay. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: parse radiotap header earlierJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | | | | | We can now move the radiotap header parsing into ieee80211_monitor_start_xmit(). This moves it out of the hotpath, and also helps the code since now the radiotap header will no longer be present in ieee80211_xmit() etc. which is easier to understand. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: move fragment flag to info flag as dont-fragmentJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | The purpose of this is two-fold: 1) by moving it out of tx_data.flags, we can in another patch move the radiotap parsing so it no longer is in the hotpath 2) if a device implements fragmentation but can optionally skip it, the radiotap request for not doing fragmentation may be honoured Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: remove tx_data ethertypeJohannes Berg2011-10-11
| | | | | | | | | | | | | | It's set, but never used, so kill it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: optimise monitor xmitJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | | | Since the only way the interface can be a monitor interface in ieee80211_xmit() is because the frame came from ieee80211_monitor_start_xmit() we can move all the code there. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: Fix regression that allowed mpaths between non-peers.Javier Cardona2011-10-11
| | | | | | | | | | | | | | Mesh paths should only exist over established peer links. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: fix offchannel TX cookie matchingJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When I introduced in-kernel off-channel TX I introduced a bug -- the work can't be canceled again because the code clear the skb pointer. Fix this by keeping track separately of whether TX status has already been reported. Cc: stable@kernel.org [2.6.38+] Reported-by: Jouni Malinen <j@w1.fi> Tested-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: pass no-CCK flag through to HW scanJohannes Berg2011-10-11
| | | | | | | | | | | | | | | | | | This is needed so that offloaded scan can do the right thing. Without this patch, the no_cck flag contains random values from the kernel heap. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | if_link: Add additional parameter to IFLA_VF_INFO for spoof checkingGreg Rose2011-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add configuration setting for drivers to turn spoof checking on or off for discrete VFs. v2 - Fix indentation problem, wrap the ifla_vf_info structure in #ifdef __KERNEL__ to prevent user space from accessing and change function paramater for the spoof check setting netdev op from u8 to bool. v3 - Preset spoof check setting to -1 so that user space tools such as ip can detect that the driver didn't report a spoofcheck setting. Prevents incorrect display of spoof check settings for drivers that don't report it. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | net: more accurate skb truesizeEric Dumazet2011-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | skb truesize currently accounts for sk_buff struct and part of skb head. kmalloc() roundings are also ignored. Considering that skb_shared_info is larger than sk_buff, its time to take it into account for better memory accounting. This patch introduces SKB_TRUESIZE(X) macro to centralize various assumptions into a single place. At skb alloc phase, we put skb_shared_info struct at the exact end of skb head, to allow a better use of memory (lowering number of reallocations), since kmalloc() gives us power-of-two memory blocks. Unless SLUB/SLUB debug is active, both skb->head and skb_shared_info are aligned to cache lines, as before. Note: This patch might trigger performance regressions because of misconfigured protocol stacks, hitting per socket or global memory limits that were previously not reached. But its a necessary step for a more accurate memory accounting. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Andi Kleen <ak@linux.intel.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net-netlink: Add a new attribute to expose TOS values via netlinkMurali Raja2011-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch exposes the tos value for the TCP sockets when the TOS flag is requested in the ext_flags for the inet_diag request. This would mainly be used to expose TOS values for both for TCP and UDP sockets. Currently it is supported for TCP. When netlink support for UDP would be added the support to expose the TOS values would alse be done. For IPV4 tos value is exposed and for IPV6 tclass value is exposed. Signed-off-by: Murali Raja <muralira@google.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cipso: remove an unneeded NULL check in cipso_v4_doi_add()Dan Carpenter2011-10-11
| | | | | | | | | | | | | | | | | | We dereference doi_def on the line before the NULL check. It has been this way since 2008. I checked all the callers and doi_def is always non-NULL here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵John W. Linville2011-10-11
|\| | | | | | | | | | | | | git://git.infradead.org/users/linville/wireless-next into for-davem Conflicts: Documentation/feature-removal-schedule.txt
| * Merge branch 'master' of git://github.com/padovan/bluetooth-nextJohn W. Linville2011-10-04
| |\
| | * Bluetooth: hci_le_adv_report_evt code refactoringAndre Guedes2011-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | There is no reason to treat the first advertising entry differently from the potential other ones. Besides, the current implementation can easily leads to typos. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| | * Bluetooth: Fix possible NULL pointer dereferenceWaldemar Rymarkiewicz2011-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Checking conn->pending_sec_level if there is no connection leads to potential null pointer dereference. Don't process pin_code_request_event at all if no connection exists. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@gmail.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| | * Bluetooth: Mark not declared l2cap_core functions as staticSzymon Janc2011-09-27
| | | | | | | | | | | | | | | Signed-off-by: Szymon Janc <szymon.janc@tieto.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| | * Bluetooth: use recommended LE connection parametersAnderson Lizardo2011-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new connection parameters now match the recommended values for Proximity and Health Thermometer profiles. The previous values were ramdomly chosen, and are either too low or too high for most cases. New values: Scan Interval: 60 ms Scan Window: 30 ms Minimum Connection Interval: 50 ms Maximum Connection Interval: 70 ms Supervision Timeout: 420 ms See "Table 5.2: Recommended Scan Interval and Scan Window Values" and "Table 5.3: Recommended Connection Interval Values" for both profiles for details. Note that the "fast connection" parameters were chosen, because we do not support yet dynamically changing these parameters from initiator side. Additionally, the Proximity profile recommends (section "4.4 Alert on Link Loss"): "It is recommended that the Link Supervision Timeout (LSTO) is set to 6x the connection interval." Minimum_CE_Length and Maximum_CE_Length were also changed from 0x0001 to 0x0000 because they are informational and optional, and old value was not reflecting reality. Signed-off-by: Anderson Lizardo <anderson.lizardo@openbossa.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| | * Bluetooth: Perform L2CAP SDU reassembly without copying dataMat Martineau2011-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use sk_buff fragment capabilities to link together incoming skbs instead of allocating a new skb for reassembly and copying. The new reassembly code works equally well for ERTM and streaming mode, so there is now one reassembly function instead of two. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| | * Bluetooth: Handle fragmented skbs in bt_sock_stream_recvmsg()Mat Martineau2011-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ERTM reassembly will be more efficient when skbs are linked together rather than copying every incoming data byte. The existing stream recv function assumes skbs are linear, so it needs to know how to handle fragments before reassembly is changed. bt_sock_recvmsg() already handles fragmented skbs. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| | * Bluetooth: Linearize skbs for use in BNEP, CMTP, HIDP, and RFCOMMMat Martineau2011-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fragmented skbs are only encountered when receiving ERTM or streaming mode L2CAP data. BNEP, CMTP, HIDP, and RFCOMM generally use basic mode, but they need to handle fragments without crashing. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| * | mac80211: pass vif param to conf_tx() callbackEliad Peller2011-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tx params should be configured per interface. add ieee80211_vif param to the conf_tx callback, and change all the drivers that use this callback. The following spatch was used: @rule1@ struct ieee80211_ops ops; identifier conf_tx_op; @@ ops.conf_tx = conf_tx_op; @rule2@ identifier rule1.conf_tx_op; identifier hw, queue, params; @@ conf_tx_op ( - struct ieee80211_hw *hw, + struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) {...} Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | mac80211: Send nullfunc frames at lower rate during connection monitorRajkumar Manoharan2011-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recently mac80211 was changed to use nullfunc instead of probe request for connection monitoring for tx ack status reporting hardwares. Sometimes in congested network, STA got disconnected quickly after the association. It was observered that the rate control was not adopted to environment due to minimal transmission. As the nullfunc are used for monitoring purpose, these frames should not be sacrificed for rate control updation. So it is better to send the monitoring null func frames at minimum rate that could help to retain the connection. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | net:rfkill: add a gpio setup function into GPIO rfkillSangwook Lee2011-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a gpio setup function which gives a chance to set up platform specific configuration such as pin multiplexing, input/output direction at the runtime or booting time. Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | mac80211: Allow noack flag overwrite for injected framesHelmut Schaa2011-10-03
| | | | | | | | | | | | | | | | | | | | | | | | Allow injected unicast frames to be sent without having to wait for an ACK. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | mac80211: dont assign seqno to or aggregate QoS Null framesJohannes Berg2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 802.11 says: "Sequence numbers for QoS (+)Null frames may be set to any value." However, if we use the normal counters then peers will get confused with aggregation since there'll be holes in the sequence number sequence. To avoid that, neither assign a sequence number to QoS null frames nor put them on aggregation. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | mac80211: allow out-of-band EOSP notificationJohannes Berg2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iwlwifi has a separate EOSP notification from the device, and to make use of that properly it needs to be passed to mac80211. To be able to mix with tx_status_irqsafe and rx_irqsafe it also needs to be an "_irqsafe" version in the sense that it goes through the tasklet, the actual flag clearing would be IRQ-safe but doing it directly would cause reordering issues. This is needed in the case of a P2P GO going into an absence period without transmitting any frames that should be driver-released as in this case there's no other way to inform mac80211 that the service period ended. Note that for drivers that don't use the _irqsafe functions another version of this function will be required. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | mac80211: explicitly notify drivers of frame releaseJohannes Berg2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iwlwifi needs to know the number of frames that are going to be sent to a station while it is asleep so it can properly handle the uCode blocking of that station. Before uAPSD, we got by by telling the device that a single frame was going to be released whenever we encountered IEEE80211_TX_CTL_POLL_RESPONSE. With uAPSD, however, that is no longer possible since there could be more than a single frame. To support this model, add a new callback to notify drivers when frames are going to be released. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | mac80211: add missing station flags to debugfsJohannes Berg2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | My work and some previous work didn't add all the flags, add them now and while at it simplify the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-13 01:26:42 -0400