- 17 10月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
-
- 09 10月, 2012 1 次提交
-
-
由 Felix Fietkau 提交于
A few places free skbs using dev_kfree_skb even though they're called after ieee80211_subif_start_xmit might have cloned it for tracking tx status. Use ieee80211_free_txskb here to prevent skb leaks. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 11 9月, 2012 1 次提交
-
-
由 Felix Fietkau 提交于
skb->dev might contain a stale reference to a device that was already deleted, and using it unchecked can lead to invalid pointer accesses. Since this is only used for nl80211 tx, iterate over active interfaces to find a match for skb->dev, and discard the tx status if the device is gone. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
-
- 20 8月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
After cfg80211 got a P2P Device abstraction, add support to mac80211. Whether it really is supported or not will depend on whether or not the driver has support for it, but mac80211 needs to change to be able to support drivers that need a P2P Device. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
-
- 09 7月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
The management frame and remain-on-channel APIs will be needed in the P2P device abstraction, so move them over to the new wdev-based APIs. Userspace can still use both the interface index and wdev identifier for them so it's backward compatible, but for the P2P Device wdev it will be able to use the wdev identifier only. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
-
- 24 6月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
There are a few things that make the logging and debugging in mac80211 less useful than it should be right now: * a lot of messages should be pr_info, not pr_debug * wholesale use of pr_debug makes it require *both* Kconfig and dynamic configuration * there are still a lot of ifdefs * the style is very inconsistent, sometimes the sdata->name is printed in front Clean up everything, introducing new macros and separating out the station MLME debugging into a new Kconfig symbol. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
-
- 22 6月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
Two instances of CONFIG_MAC80211_VERBOSE_DEBUG should be different, fix them. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
-
- 07 6月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
Redesign all the off-channel code, getting rid of the generic off-channel work concept, replacing it with a simple remain-on-channel list. This fixes a number of small issues with the ROC implementation: * offloaded remain-on-channel couldn't be queued, now we can queue it as well, if needed * in iwlwifi (the only user) offloaded ROC is mutually exclusive with scanning, use the new queue to handle that case -- I expect that it will later depend on a HW flag The bigger issue though is that there's a bad bug in the current implementation: if we get a mgmt TX request while HW roc is active, and this new request has a wait time, we actually schedule a software ROC instead since we can't guarantee the existing offloaded ROC will still be that long. To fix this, the queuing mechanism was needed. The queuing mechanism for offloaded ROC isn't yet optimal, ideally we should add API to have the HW extend the ROC if needed. We could add that later but for now use a software implementation. Overall, this unifies the behaviour between the offloaded and software-implemented case as much as possible. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 06 6月, 2012 1 次提交
-
-
由 Joe Perches 提交于
Standardize the debugging to be able to use dynamic_debug. Coalesce formats, align arguments. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 10 5月, 2012 1 次提交
-
-
由 Joe Perches 提交于
Use the new bool function ether_addr_equal to add some clarity and reduce the likelihood for misuse of compare_ether_addr for sorting. Done via cocci script: $ cat compare_ether_addr.cocci @@ expression a,b; @@ - !compare_ether_addr(a, b) + ether_addr_equal(a, b) @@ expression a,b; @@ - compare_ether_addr(a, b) + !ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) == 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) != 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) == 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) != 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !!ether_addr_equal(a, b) + ether_addr_equal(a, b) Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 14 4月, 2012 1 次提交
-
-
由 Lorenzo Bianconi 提交于
I noticed a possible issue in the status count field management of the ieee80211_tx_info data structure. In particular, when the AGGR processing is employed, status.rates[].count is set just for the first frame and not for others belonging to the same burst, leading to wrong statistic data in the mac80211 debug file system. Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 06 3月, 2012 1 次提交
-
-
由 Felix Fietkau 提交于
Because of the constant size and guaranteed 16 bit alignment, the inline compare_ether_addr function is much cheaper than calling memcmp. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 28 2月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
Some files implicitly get this via mesh.h which itself doesn't need it, so move the inclusion into the right files. Some other files don't need it at all but include it, so remove it from there. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 28 1月, 2012 1 次提交
-
-
由 Johannes Berg 提交于
It seems that -Wshadow is no longer default in sparse runs, but let's fix the warnings anyway. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 14 12月, 2011 1 次提交
-
-
由 Helmut Schaa 提交于
Use ieee80211_is_data, ieee80211_is_mgmt and ieee80211_is_first_frag in the tx status path. This makes the code easier to read and allows us to remove two local variables: frag and type. Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 22 11月, 2011 1 次提交
-
-
由 Helmut Schaa 提交于
I intoduced this bug in commit a2fe8166 "mac80211: Build TX radiotap header dynamically" Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 10 11月, 2011 3 次提交
-
-
由 Johannes Berg 提交于
Implement the socket wifi TX status error queue reflection in mac80211. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
Support probing clients with null data frames in AP mode. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
Drivers that need to drop a frame before it can be transmitted will usually simply free that frame. This is currently fine, but in the future it'll be needed to tell mac80211 about this case, so add a new routine that frees a TX skb. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 01 11月, 2011 1 次提交
-
-
由 Paul Gortmaker 提交于
These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
-
- 15 10月, 2011 2 次提交
-
-
由 Helmut Schaa 提交于
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: NHelmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Helmut Schaa 提交于
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: NHelmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 12 10月, 2011 1 次提交
-
-
由 Johannes Berg 提交于
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: NJouni Malinen <j@w1.fi> Tested-by: NJouni Malinen <j@w1.fi> Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 01 10月, 2011 6 次提交
-
-
由 Johannes Berg 提交于
The flaglock in struct sta_info has long been something that I wanted to get rid of, this finally does the conversion to atomic bitops. The conversion itself is straight-forward in most places, a few things needed to change a bit since we can no longer use multiple bits at the same time. On x86-64, this is a fairly significant code size reduction: text data bss dec hex 427861 23648 1008 452517 6e7a5 before 425383 23648 976 450007 6ddd7 after Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
Add uAPSD support to mac80211. This is probably not possible with all devices, so advertising it with the cfg80211 flag will be left up to drivers that want it. Due to my previous patches it is now a fairly straight-forward extension. Drivers need to have accurate TX status reporting for the EOSP frame. For drivers that buffer themselves, the provided APIs allow releasing the right number of frames, but then drivers need to set EOSP and more-data themselves. This is documented in more detail in the new code itself. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
It doesn't seem likely, but maybe possible, that the more-data bit needs to be recomputed due to changes in the queued frames. Clear it for filtered frames to ensure that we never send it incorrectly. It'll be set again as necessary when we retransmit this frame. The more likely case is maybe where the station woke up after the filtered frame in which case more-data should be clear when the frame is transmitted to the station since it is now awake. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
For uAPSD support we'll need to have per-AC PS buffers. As this is a major undertaking, split the buffers before really adding support for uAPSD. This already makes some reference to the uapsd_queues variable, but for now that will never be non-zero. Since book-keeping is complicated, also change the logic for keeping a maximum of frames only and allow 64 frames per AC (up from 128 for a station). Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
mac80211 will expire normal PS-buffered frames, but if the device rejected some frames for a sleeping station, these won't be on the ps_tx_buf queue but on the tx_filtered queue instead; this is done to avoid reordering. However, mac80211 will not expire frames from the filtered queue, let's fix that. Also add a more comments to what all this expiry is doing and how it works. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 Johannes Berg 提交于
Currently, the TIM bit for a given station is set and cleared all over the place. Since the logic to set/clear it will become much more complex when we add uAPSD support, as a first step let's collect the entire logic in one place. This requires a few small adjustments to other places. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 17 9月, 2011 1 次提交
-
-
由 Felix Fietkau 提交于
Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 15 9月, 2011 1 次提交
-
-
由 Felix Fietkau 提交于
To properly maintain the peer's block ack window, the driver needs to be able to control the new starting sequence number that is sent along with the BlockAckReq frame. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 14 9月, 2011 1 次提交
-
-
由 Felix Fietkau 提交于
Unfortunately failed BAR tx attempts happen more frequently than I expected, and the resulting aggregation teardowns cause performance issues, as the aggregation session does not always get re-established properly. Instead of tearing down the entire aggr session, we can simply store the SSN of the last failed BAR tx attempt, wait for the first successful tx status event, and then send another BAR with the same SSN. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 23 8月, 2011 1 次提交
-
-
由 Helmut Schaa 提交于
As described at [1] some STAs (i.e. Intel 5100 Windows) can end up correctly BlockAcking incoming frames without delivering them to user space if a AMPDU subframe got lost and we don't flush the receipients reorder buffer with a BlockAckReq. This in turn results in stuck connections. According to 802.11n-2009 it is not necessary to send a BAR to flush the recepients RX reorder buffer but we still do that to be polite. However, assume the following frame exchange: AP -> STA, AMPDU (failed) AP -> STA, BAR (failed) The client in question then ends up in the same situation and won't deliver frames to userspace anymore since we weren't able to flush its reorder buffer. This is not a hypothetical situation but I was able to observe this exact behavior during a stress test between a rt2800pci AP and a Intel 5100 Windows client. In order to work around this issue just tear down the BA session as soon as a BAR failed to be TX'ed. [1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 09 8月, 2011 1 次提交
-
-
由 Johannes Berg 提交于
For iwlwifi, I decided not to use this API since it just increased the complexity for little gain. Since nobody else intends to use it, let's kill it again. If anybody later needs to have it, we can always revive it then. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 29 4月, 2011 1 次提交
-
-
由 Arik Nemtsov 提交于
Add API that allows low level drivers to notify mac80211 about TX packet loss. This is useful when there are FW triggers to notify the low level driver about these events. Signed-off-by: NArik Nemtsov <arik@wizery.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 31 3月, 2011 1 次提交
-
-
由 Helmut Schaa 提交于
ieee80211_tx_status iterates over all tx rates the driver reports back in order to 1) mark tx rates as invalid if the driver cannot have tried that rate 2) find the actually used tx rate for the final retransmission By leaving the for loop when the first invalid rate index is found we can move the rates_idx assignment after the loop and therefore save a few assignments and conditionals. Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 26 2月, 2011 1 次提交
-
-
由 Johannes Berg 提交于
For devices supported by iwlwifi sometimes off-channel transmissions need to be handled by the device completely. To support this mac80211 needs to pass the frame directly to the driver and not through the TX path as the driver needs the frame and channel information at the same time. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 24 2月, 2011 1 次提交
-
-
由 Vivek Natarajan 提交于
There is a race on sending a data frame before the tx completion of nullfunc frame for enabling power save. As the data quickly follows the nullfunc frame, the AP thinks that the station is out of power save and continues to send the frames. Whereas in the station, the nullfunc ack will be processed after the tx completion of data frame and mac80211 goes to powersave. Thus the power save state mismatch between the station and the AP causes some data loss and some applications fail because of that. This patch fixes this issue. Signed-off-by: NVivek Natarajan <vnatarajan@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 04 2月, 2011 1 次提交
-
-
由 Arik Nemtsov 提交于
When operating in AP mode the wl1271 hardware filters out null-data packets as well as management packets. This makes it impossible for mac80211 to monitor the PS mode by using the PM bit of incoming frames. Implement a HW flag to indicate that mac80211 should ignore the PM bit. In addition, expose ieee80211_sta_ps_transition() to make low-level drivers capable of controlling PS-mode. Signed-off-by: NArik Nemtsov <arik@wizery.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 03 2月, 2011 1 次提交
-
-
由 Johannes Berg 提交于
When the off-channel TX is done with remain-on-channel offloaded to hardware, the reported cookie is wrong as in that case we shouldn't use the SKB as the cookie but need to instead use the corresponding r-o-c cookie (XOR'ed with 2 to prevent API mismatches). Fix this by keeping track of the hw_roc_skb pointer just for the status processing and use the correct cookie to report in this case. We can't use the hw_roc_skb pointer itself because it is NULL'ed when the frame is transmitted to prevent it being used twice. This fixes a bug where the P2P state machine in the supplicant gets stuck because it never gets a correct result for its transmitted frame. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-