- 12 Jan, 2010 40 commits
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Lennert Buytenhek authored
Whenever mac80211 gives us a legacy rate bitmap in the context of the 5 GHz band, we need to remember to shift the bitmap left by 5 positions before giving it to the firmware, as the firmware follows the bitmap bit assignment of the 2.4 GHz rate table even if we're on the 5 GHz band, and the 2.4 GHz rate table includes five non-OFDM rates at the start that are not valid in the 5 GHz band. Signed-off-by:
Lennert Buytenhek <buytenh@marvell.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Lennert Buytenhek authored
The mwl8k firmware uses indices into the 2.4 GHz band rate table for the receive descriptor channel field even if the packet was received on a 5 GHz channel, while mac80211 expects an index into the 5 GHz band rate table when packets are received on the 5 GHz band, which presents a mismatch as the 5 GHz band rate table lacks the five non-OFDM rates that the 2.4 GHz rate table starts with. To handle this properly, we need to substract 5 from the rate index field if the packet was received on a 5 GHz channel (and was not received at an MCS rate). Signed-off-by:
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Lennert Buytenhek authored
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Lennert Buytenhek authored
So that we can make 2.4 GHz and 5 GHz band registration conditional on the capability bitmask returned by the firmware. Signed-off-by:
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Lennert Buytenhek authored
To prepare for adding 5 GHz band/channels/rates. Signed-off-by:
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Lennert Buytenhek authored
0x2a43 is a single-band (2.4GHz only) 88w8366 mini-PCIe card. Signed-off-by:
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Lennert Buytenhek authored
By storing the sequence counter in << 4 format, like other drivers do. Signed-off-by:
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Lennert Buytenhek authored
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Lennert Buytenhek authored
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Lennert Buytenhek authored
Add MODULE_FIRMWARE tags for the mwl8k firmware images that don't have them yet, and move them to where the firmware image names are declared. Signed-off-by:
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Kalle Valo authored
wl1251 firmware supports U-APSD just with a simple queue configuration change so enable it. Signed-off-by:
Kalle Valo <kalle.valo@nokia.com> Signed-off-by:
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Kalle Valo authored
The qos null data template is needed for U-APSD. Signed-off-by:
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Kalle Valo authored
The header can be used to create qos nullfunc frames, for example. Signed-off-by:
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Kalle Valo authored
To make U-APSD client mode effective, we must not wake up from dynamic power save when transmitting frames. So if dynamic power save is enabled, it needs check the queue the transmitted packet is in and decide if we need to wake up or not. In a perfect world, where all packets would have correct QoS tags, U-APSD enabled queues should not trigger wakeup from power save. But in the real world, where very few packets have correct QoS tags, this won't work. For example, if only voip class has U-APSD enabled and we send a packet in voip class, but the packets we receive are in best effort class, we would receive the packets with the legacy power save method. And that would increase latencies too much from a voip application point of view. The workaround is to enable U-APSD for all qeueus and still use dynamic ps wakeup for all other queues except voip. That way we can still save power with a voip application and not sacrifice latency. Normal traffic (in background, best effort or video class) would still trigger wakeup from dynamic power save. Signed-off-by:
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Kalle Valo authored
Currently dynamic ps check is in ieee80211_xmit(), but it's cleaner to have a separate tx handler for this. Also this is a prerequisite for U-APSD client mode which needs to know the queue frame is in. Also need_dynamic_ps() function is embedded to the tx handler. No functional changes expect that the code is run in a later phase than originally. Signed-off-by:
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Kalle Valo authored
Because it's not yet decided how to configure which queues are U-APSD enabled, add a debugfs interface for testing purposes. Signed-off-by:
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Kalle Valo authored
Add Unscheduled Automatic Power-Save Delivery (U-APSD) client support. The idea is that the data frames from the client trigger AP to send the buffered frames with ACs which have U-APSD enabled. This decreases latency and makes it possible to save even more power. Driver needs to use IEEE80211_HW_UAPSD to enable the feature. The current implementation assumes that firmware takes care of the wakeup and hardware needing IEEE80211_HW_PS_NULLFUNC_STACK is not yet supported. Tested with wl1251 on a Nokia N900 and Cisco Aironet 1231G AP and running various test traffic with ping. Signed-off-by:
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Johannes Berg authored
The type argument to DEBUGFS_ADD() isn't used and can be removed, it's around from before the conversion to debugfs_remove_recursive(). Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Lennert Buytenhek authored
Since commit "mwl8k: handle station database update for AP's sta entry via ->sta_notify()", mwl8k every now and then gets a command timeout when ifconfig'ing a STA interface down. This turns out to be due to mwl8k_stop() being called while the work queue item that was scheduled by mwl8k_sta_notify() to remove the STA entry for the associated AP is still queued, and the former disables interrupts so that when the latter eventually runs, a command completion interrupt is never seen. Fix this by changing ieee80211_stop_device() so that the workqueue is flushed before drv_stop() is called, instead of doing it the other way around as is done now. (As ->stop() is allowed to sleep, there isn't any reason for drivers to queue work from within it.) Signed-off-by:
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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H Hartley Sweeten authored
void pointers do not need to be cast to other pointer types. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by:
Zhu Yi <yi.zhu@intel.com> Cc: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by:
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Wey-Yi Guy authored
When setting invalid byte count in txq byte count table, read pointer should be used instead of write pointer. Reported-by:
Guo, Chaohong <chaohong.guo@intel.com> Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
Reinette Chatre <reinette.chatre@intel.com> Signed-off-by:
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Wey-Yi Guy authored
"RADAR_NOTIFICATION" host command is not used and not supported by uCode, remove it from driver code. Signed-off-by:
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Wey-Yi Guy authored
Update data structure to match latest statistics report from uCode. Signed-off-by:
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Wey-Yi Guy authored
mac80211 do not check the return code now, what if mac80211 does start using the return code? IEEE80211_AMPDU_TX_OPERATIONAL is a valid action, just iwlwifi driver do not need to take any action for it; so instead of return "-EINVAL", it is a good program practice to return "-EOPNOTSUPP" to make sure mac80211 will not get wrong impression. Signed-off-by:
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Johannes Berg authored
sparse pointed out that I made a mistake converting the return value of ieee80211_assoc_success to bool, this place should return false instead of one of the enum values (which would be true). Signed-off-by:
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Lennert Buytenhek authored
Like how TX reclaim is done in a tasklet, move receive processing to tasklet context as well. This can have nice benefits for CPU utilisation and throughput, especially at 3-stream rates. (Use the same CLEAR_SEL trick as the TX reclaim tasklet does, to avoid having to touch the interrupt mask registers.) Signed-off-by:
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Lennert Buytenhek authored
By making use of the CLEAR_SEL feature of the mwl8k host interface interrupt controller, we can keep the TX_DONE interrupt source masked while the transmit reclaim tasklet is running (NAPI style) without having to touch the interrupt controller's interrupt mask register when entering or exiting polling mode, and without having to do any more register reads/writes than we do now. When CLEAR_SEL is enabled on the TX_DONE interrupt source, reading the interrupt status register will clear the TX_DONE status bit if it was set, allowing it to be set again if a new TX_DONE event arrives while we are running the TX reclaim tasklet, but such a new event will then not trigger another PCI interrupt until a zero is written to the TX_DONE interrupt status register bit. I.e., if we write a zero to the TX_DONE interrupt source bit in the interrupt status register when the TX reclaim tasklet thinks it's done, a PCI interrupt will be triggered if a new TX_DONE event arrived from the hardware between us deciding that there is no more work to do and re-enabling the TX_DONE interrupt source, thereby avoiding the classic NAPI poll mode exit race that would otherwise occur. Signed-off-by:
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Lennert Buytenhek authored
Add a limit argument to mwl8k_txq_reclaim(), to allow limiting the number of packets that it will reclaim, and make it return the number of packets that it reclaimed. Signed-off-by:
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Lennert Buytenhek authored
Add support for creating AP interfaces, and enabling beaconing. This allows running a basic AP (11b/g mode only for now). Signed-off-by:
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Lennert Buytenhek authored
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Lennert Buytenhek authored
STA firmware uses UPDATE_STADB to manipulate the hardware station database, whereas AP firmware uses SET_NEW_STN -- this implements the latter, and hooks it into mwl8k_sta_notify(), to be used if we're running on AP firmware. Signed-off-by:
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Lennert Buytenhek authored
As with the STA version, unicast will use auto rate adaptation, but the AP version allows setting the rates to be used for management and multicast transmissions, which can be set based on the BSS basic rate set. Signed-off-by:
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Lennert Buytenhek authored
As we always use the auto rate adaptation feature and never pass in a rate table, USE_FIXED_RATE can be simplified somewhat. While we're at it, rename it to *_sta, as this is the STA version of the command. Signed-off-by:
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Lennert Buytenhek authored
While it is reasonable to expect that at least one transmit ring entry will be processed per second while we are waiting for the transmit rings to drain, the firmware can end up doing batching of transmit ring status writeback, which means that the transmit rings can appear stuck for more than a second at a time. Bump the TX drain wait timeout up from 1 to 5 seconds to account for this. Signed-off-by:
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Lennert Buytenhek authored
The comment and code in mwl8k_cmd_set_edca_params() suggest that the mapping between SET_EDCA_PARAMS queue numbers and transmit rings isn't actually 1:1, while tests show that the mapping is in fact 1:1. So, get rid of the transmit queue 0/1 swapping. Signed-off-by:
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Lennert Buytenhek authored
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Felix Fietkau authored
If frames are transmitted on 4-addr ap vlan interfaces with no station, they end up being transmitted unencrypted, even if the ap interface uses WPA. This patch add some sanity checking to make sure that this does not happen. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by:
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Felix Fietkau authored
Since the per-vif station changes, sta_info_get on the ap sdata no longer returns entries for stations on ap vlans. This causes issues with hostapd, which currently always passes the ap interface name to nl80211 calls. This patch provides bug compatibility with the earlier versions until hostapd is fixed. Signed-off-by:
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Felix Fietkau authored
To detect incoming 4-addr stations, hostapd needs to receive a 4-addr data frame from the remote station, so that it can create the AP VLAN for it. With this patch, the mlme code emits a 4-addr nullfunc frame immediately after assoc. On the AP side it also drops 4-addr nullfunc frames to the cooked monitor mode interface, if the interface hasn't been fully set up to receive 4-addr data frames yet. Signed-off-by:
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