- 10 Jul, 2009 33 commits
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Kalle Valo authored
The wakeup call was done too deep in code path, it's better to wakeup chip from higher levels. This will also reduce wakeup calls significantly. Signed-off-by:
Kalle Valo <kalle.valo@nokia.com> Reviewed-by:
Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Kalle Valo authored
The function doesn't lock the mutex before sending the acx. Signed-off-by:
Vidhya Govindan <vidhya.govindan@nokia.com> Signed-off-by:
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Ari Kauppi authored
CMD_TEST via netlink API has been broken since e29c3f59cfbc38c3b481a2694b08962da19c4664: cmd and acx interface rework. The user of the interface sends the request in a buffer without the wl12xx_command header but expects the response to have the wl12xx_command header (with id and status). This patch reverts the e29c3f5 commit for cmd.c:wl12xx_cmd_test and implements the needed wrapper functionality in netlink.c. Now the API of wl12xx_cmd_test and rest of wl12xx_cmd_* commands in cmd.c are similar. Signed-off-by:
Ari Kauppi <Ext-Ari.Kauppi@nokia.com> Signed-off-by:
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Ari Kauppi authored
A warning message in wl12xx_acx_event_mbox_mask has a copy/paste error. Fix it to print the correct acx command. Signed-off-by:
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Juuso Oikarinen authored
Add support for block reading (multiple bytes) from a fixed chipset register address. This is required for the wl1271 TX data path. Signed-off-by:
Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by:
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Juuso Oikarinen authored
Moved wl1251 TX path implementation into chip specific files to enable parallel implementation for the wl1271 TX path. Signed-off-by:
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Luciano Coelho authored
Changed the function wl12xx_acx_wake_up_conditions() so that it receives an argument with the actual wake up condition, instead of having WAKE_UP_EVENT_DTIM_BITMAP hardcoded. This is needed because we have to use different conditions in 1271. Signed-off-by:
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Luciano Coelho authored
In the wl1271 implementation, we need to read memory from the register partition using fixed addresses. This change adds the possibility to request fixed address when calling wl12xx_spi_read() or wl12xx_spi_reg_read(). Signed-off-by:
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Luciano Coelho authored
This patch adds the code that recognizes the new WL1271 chip revision (PG 2.0). Full support for this chip is not yet implemented and support for WL1271 PG 1.0 is not guaranteed anymore. Signed-off-by:
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Luciano Coelho authored
With WL1271, the firmware version can only be read right after booting the chip. To keep WL1251 aligned with this procedure, the code that reads the firmware version initially has been moved to a common place where it can be read from both chipsets. Signed-off-by:
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Luciano Coelho authored
In some cases we need to read more than 32 bits from the register area. These functions were added to support that, like the existing wl12xx_spi_mem_read() and wl12xx_spi_mem_write() already do for large blocks in the memory area. Signed-off-by:
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Juuso Oikarinen authored
The chipset source interrupt source configuration during fw wakeup was blocking interrupts on the wl1271. The configuration is effectively unused here as it is used to trigger an interrupt for the chipset wake-up event, which is not handled, or waited for, in the fw wakeup anyway on either wl1251 or wl1271. Signed-off-by:
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Kalle Valo authored
Rx descriptor was incorrectly allocated from stack, use struct wl12xx instead. Needed for DMA transfers. Signed-off-by:
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Kalle Valo authored
As a side effect the transfer is now DMA safe. Signed-off-by:
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Kalle Valo authored
Needed for DMA transfers. Signed-off-by:
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Kalle Valo authored
Needed for DMA safe transfers. Signed-off-by:
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Kalle Valo authored
This is now DMA safe. Signed-off-by:
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Kalle Valo authored
Resources were not freed properly in some cases. Signed-off-by:
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Kalle Valo authored
The buffer is needed for DMA safe transfers. Signed-off-by:
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Kalle Valo authored
Rework cmd and acx interfaces, it was just too confusing earlier. Now all commands need to contain all the needed headers, either just cmd headers or both cmd and acx headers. This accomplish to remove the extra copy done for each command. The interfaces are now properly documented as well. Also try to make all commands safe for DMA transfers. I might have missed some, but most of them should be fixed now. And this is not all! As a free bonus you will also get some cosmetic cleanups and code reorganisation. Order today! Signed-off-by:
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Vasanthakumar Thiagarajan authored
This patch moves the sanity check on beacon interval which was done only for mesh mode to all operating modes just to be safe. Signed-off-by:
Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by:
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Andrey Yurovsky authored
Power save support depends on the firmware capabilities rather than the card's hardware interface. Use the FW_CAPINFO_PS bit in the firmware capabilities mask throughout the driver in place of the redundant ps_supported flag and don't make decisions about PS support in the interface drivers (with the exception of a special case in the USB driver). V2: put the USB special case in the right place. Signed-off-by:
Andrey Yurovsky <andrey@cozybit.com> Acked-by:
Dan Williams <dcbw@redhat.com> Signed-off-by:
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Bob Copeland authored
Cardbus and some PCI cards use hardware LEDs rather than software GPIOs. Program them with the proper blink patterns when idle, scanning or associated. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=13288. Tested-by:
Frans Pop <elendil@planet.nl> Tested-by:
Mark Hindley <mark@hindley.org.uk> Signed-off-by:
Bob Copeland <me@bobcopeland.com> Signed-off-by:
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Bob Copeland authored
ah_gpios array isn't used, and ah_current_channel can be a pointer instead of an embedded struct. Removing these and some other write-only variables, and moving some things around for better packing and cache utilization saves 116 bytes. text data bss dec hex filename 121762 472 64 122298 1ddba ath5k_before.ko 121646 472 64 122182 1dd46 ath5k.ko Signed-off-by:
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Vasanthakumar Thiagarajan authored
We can easily run out of tx buf if there is any stuck in transmission, so downgrade it to WARN_ON(). Signed-off-by:
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Vasanthakumar Thiagarajan authored
mac80211 already has one to keep track of number of failure addba attempts. Signed-off-by:
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Vasanthakumar Thiagarajan authored
IEEE80211_TX_CTL_AMPDU in tx control flags should be enough to confirm BA is negotiated for that tid. Signed-off-by:
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Johannes Berg authored
If there was a reason I'm passing the ifidx I cannot remember it any more and don't see one now, so let's just pass the pointer itself. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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David S. Miller authored
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Roland Dreier authored
Commit c3a8c5b6 ("cxgb3: move away from LLTX") exposed a bug in how cxgb3 looks up the netdev_queue it stashes away in a qset during initialization. For multiport devices, the TX queue index it uses is offset by the first_qset index of each port. This leads to a crash once LLTX is removed, since hard_start_xmit is called with one TX queue lock held, while the TX reclaim timer task grabs a different (wrong) TX queue lock when it frees skbs. Fix this by removing the first_qset offset used to look up the TX queue passed into t3_sge_alloc_qset() from setup_sge_qsets(). Signed-off-by:
Roland Dreier <rolandd@cisco.com> Acked-by:
Divy Le Ray <divy@chelsio.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Yi Zou authored
Fix coexistence of Fiber Channel over Ethernet (FCoE) and Flow Director (FDIR) in 82599 and remove the disabling of FDIR when FCoE is enabled. Currently, FDIR is turned off when FCoE is enabled under the assumption that FCoE is always enabled with DCB being turned on. However, FDIR does not have to be turned off all the time when FCoE is enabled since FCoE can be enabled without DCB being turned on, e.g., use link pause only. This patch makes sure that when DCB is turned on or off, FDIR is turned on or off correspondingly; and when FCoE is enabled, it does not disable FDIR, rather, it will have FDIR set up properly so FCoE and FDIR can coexist regardless of DCB being on or off. Signed-off-by:
Yi Zou <yi.zou@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Jiri Olsa authored
Adding smp_mb__after_lock define to be used as a smp_mb call after a lock. Making it nop for x86, since {read|write|spin}_lock() on x86 are full memory barriers. Signed-off-by:Jiri Olsa <jolsa@redhat.com> Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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Jiri Olsa authored
Adding memory barrier after the poll_wait function, paired with receive callbacks. Adding fuctions sock_poll_wait and sk_has_sleeper to wrap the memory barrier. Without the memory barrier, following race can happen. The race fires, when following code paths meet, and the tp->rcv_nxt and __add_wait_queue updates stay in CPU caches. CPU1 CPU2 sys_select receive packet ... ... __add_wait_queue update tp->rcv_nxt ... ... tp->rcv_nxt check sock_def_readable ... { schedule ... if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) wake_up_interruptible(sk->sk_sleep) ... } If there was no cache the code would work ok, since the wait_queue and rcv_nxt are opposit to each other. Meaning that once tp->rcv_nxt is updated by CPU2, the CPU1 either already passed the tp->rcv_nxt check and sleeps, or will get the new value for tp->rcv_nxt and will return with new data mask. In both cases the process (CPU1) is being added to the wait queue, so the waitqueue_active (CPU2) call cannot miss and will wake up CPU1. The bad case is when the __add_wait_queue changes done by CPU1 stay in its cache, and so does the tp->rcv_nxt update on CPU2 side. The CPU1 will then endup calling schedule and sleep forever if there are no more data on the socket. Calls to poll_wait in following modules were ommited: net/bluetooth/af_bluetooth.c net/irda/af_irda.c net/irda/irnet/irnet_ppp.c net/mac80211/rc80211_pid_debugfs.c net/phonet/socket.c net/rds/af_rds.c net/rfkill/core.c net/sunrpc/cache.c net/sunrpc/rpc_pipe.c net/tipc/socket.c Signed-off-by:
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- 09 Jul, 2009 2 commits
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Anton Vorontsov authored
Using early netconsole and gianfar driver this error pops up: netconsole: timeout waiting for carrier It appears that net/core/netpoll.c:netpoll_setup() is using cond_resched() in a loop waiting for a carrier. The thing is that cond_resched() is a no-op when system_state != SYSTEM_RUNNING, and so drivers/net/phy/phy.c's state_queue is never scheduled, therefore link detection doesn't work. I belive that the main problem is in cond_resched()[1], but despite how the cond_resched() story ends, it might be a good idea to call msleep(1) instead of cond_resched(), as suggested by Andrew Morton. [1] http://lkml.org/lkml/2009/7/7/463Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by:
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- 08 Jul, 2009 5 commits
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: include/linux/rfkill.h: linux/types.h is included more than once. Signed-off-by:
Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by:
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Larry Finger authored
In the mainline kernel, p54usb will fail because the TX queue length can become < 0. This problem has been reported as Bugzilla #13725. The failure is expressed by the following message in the logs: WARNING: at net/mac80211/tx.c:1325 ieee80211_tx+0x23c/0x298 [mac80211]() Hardware name: HP Pavilion dv2700 Notebook PC tx refused but queue active This problem has been recently observed in the wireless-testing tree, where a full solution is being tested. That fix is too invasive for 2.6.31-rcX, but the simple change supplied here will prevent the failure. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Jay Sternberg authored
Atheros top level menu needs a "depends WLAN_80211" to properly indent within menuconfig and xconfig interfaces. This is purely a visual issue but it effects all subsequent drivers. The issue is the top level menu does not include a dependency on WLAN_80211 so within the tree structure, Atheros is at the same level as WLAN_80211 but when WLAN_80211 collapsed, the menu disappears along with all subsequent drives, so it is really a subordinate. Signed-off-by:
Jay Sternberg <jay.e.sternberg@intel.com> Signed-off-by:
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Johannes Berg authored
These two functions no longer exist in mac80211, so trying to insert them generates warnings in the document. Signed-off-by:
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Johannes Berg authored
There's a race condition -- started can be set to true before channel is set due to the way mac80211 callbacks currently work (->start should probably pass the channel we would like to have initially). For now simply add a check to hwsim to avoid dereferencing the NULL channel pointer. Signed-off-by:
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