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path: root/drivers/net/wireless/ath/wil6210/wil6210.h
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2014-12-01wil6210: configurable vring sizesVladimir Kondratiev
Allow to configure VRING size for both Rx and Tx via module parameters: rx_ring_order and tx_ring_order. Parameters are ring size orders, i.e. ring size calculated as 1 << order. Defaults for both Tx and Rx are order 9, i.e. size 512 Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01wil6210: remove wil_to_pcie_dev()Vladimir Kondratiev
There is no need to obtain physical device through wil->pdev->dev path, as it is done by this macro. The same device already stored as wiphy's device, thus wil_to_dev() returns the same device as wil_to_pcie_dev() Remove unnecessary macros, this allows to drop dependency by pci.h in the firmware download code. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01wil6210: add handling of RX HTRSH interruptVladimir Kondratiev
RX_HTRSH interrupt is handled in exactly the same manner as RX_DONE interrupt - fetching accumulated packets from RX ring. In addition there's a rate limitted warning message. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01wil6210: propagate disconnect reasonVladimir Kondratiev
Propagate reason for the disconnect through the relevant call chains: - report to cfg80211 reason as reported by the firmware - provide to the firmware reason as requested by cfg80211 Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-30wil6210: Add support for large packetsVladimir Kondratiev
It is possible to configure driver using mtu_max module parameter by setting it to value in range of 68..7920 inclusive. This is sub-optimal performance-wise in case packet is larger than 1 page. mtu_max default value is 2228. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-30wil6210: prevent double disconnect command issuingVladimir Kondratiev
Disconnect flow may be invoked either from upper layer request, or from event reported by the firmware. In case of firmware event, driver need to release resources for the station but not send another disconnect WMI command. In case of upper layer request, WMI_DISCONNECT_STA_CMDID command need to be issued for the firmware to perform disconnect on the MAC layer. Eventually, event is expected to confirm MAC disconnect, but it is better to not wait for firmware event and release station resources immediately. FW may fail to report disconnect for various reasons, so one could not rely on event always reported. Introduce parameter to distinguish 2 cases above to prevent double WMI command issuing. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-30wil6210: reset flow updatesVladimir Kondratiev
As communicated with the firmware & hardware teams Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-27Merge tag 'for-linville-20141024' of git://github.com/kvalo/athJohn W. Linville
Conflicts: drivers/net/wireless/ath/wil6210/wil6210.h
2014-10-05Merge tag 'master-2014-10-02' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== pull request: wireless-next 2014-10-03 Please pull tihs batch of updates intended for the 3.18 stream! For the iwlwifi bits, Emmanuel says: "I have here a few things that depend on the latest mac80211's changes: RRM, TPC, Quiet Period etc... Eyal keeps improving our rate control and we have a new device ID. This last patch should probably have gone to wireless.git, but at that stage, I preferred to send it to -next and CC stable." For (most of) the Atheros bits, Kalle says: "The only new feature is testmode support from me. Ben added a new method to crash the firmware with an assert for debug purposes. As usual, we have lots of smaller fixes from Michal. Matteo fixed a Kconfig dependency with debugfs. I fixed some warnings recently added to checkpatch." For the NFC bits, Samuel says: "We've had major updates for TI and ST Microelectronics drivers, and a few NCI related changes. For TI's trf7970a driver: - Target mode support for trf7970a - Suspend/resume support for trf7970a - DT properties additions to handle different quirks - A bunch of fixes for smartphone IOP related issues For ST Microelectronics' ST21NFCA and ST21NFCB drivers: - ISO15693 support for st21nfcb - checkpatch and sparse related warning fixes - Code cleanups and a few minor fixes Finally, Marvell added ISO15693 support to the NCI stack, together with a couple of NCI fixes." For the Bluetooth bits, Johan says: "This 3.18 pull request replaces the one I did on Monday ("bluetooth-next 2014-09-22", which hasn't been pulled yet). The additions since the last request are: - SCO connection fix for devices not supporting eSCO - Cleanups regarding the SCO establishment logic - Remove unnecessary return value from logging functions - Header compression fix for 6lowpan - Cleanups to the ieee802154/mrf24j40 driver Here's a copy from previous request that this one replaces: ' Here are some more patches for 3.18. They include various fixes to the btusb HCI driver, a fix for LE SMP, as well as adding Jukka to the MAINTAINERS file for generic 6LoWPAN (as requested by Alexander Aring). I've held on to this pull request a bit since we were waiting for a SCO related fix to get sorted out first. However, since the merge window is getting closer I decided not to wait for it. If we do get the fix sorted out there'll probably be a second small pull request later this week. '" And, "Unless 3.17 gets delayed this will probably be our last -next pull request for 3.18. We've got: - New Marvell hardware supportr - Multicast support for 6lowpan - Several of 6lowpan fixes & cleanups - Fix for a (false-positive) lockdep warning in L2CAP - Minor btusb cleanup" On top of all that comes the usual sort of updates to ath5k, ath9k, ath10k, brcmfmac, mwifiex, and wil6210. This time around there are also a number of rtlwifi updates to enable some new hardware and to reconcile the in-kernel drivers with some newer releases of the Realtek vendor drivers. Also of note is some device tree work for the bcma bus. Please let me know if there are problems! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-02wil6210: atomic I/O for the card memoryVladimir Kondratiev
Introduce netdev IOCTLs, to be used by the debug tools. Allows to read/write single dword value or memory block, aligned to dword Different address modes supported: - BAR offset - Firmware "linker" address - target's AHB bus Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-02wil6210: manual FW error recovery modeVladimir Kondratiev
Introduce manual FW recovery mode. It is activated if module parameter @no_fw_recovery set to true. May be changed at runtime. Recovery information provided by new "recovery" debugfs file. It prints: mode = [auto|manual] state = [idle|pending|running] In manual mode, after FW error, recovery won't start automatically. Instead, after notification to user space, recovery waits in "pending" state, as indicated by the "recovery" debugfs file. User space tools may perform data collection and allow to continue recovery by writing "run" to the "recovery" debugfs file. Alternatively, recovery pending may be canceled by stopping network interface i.e. 'ifconfig wlan0 down' Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-29ath: change logging functions to return voidJoe Perches
The return values are not used by callers of these functions so change the functions to return void. Other miscellanea: o add __printf verification to wil6210 logging functions No format/argument mismatches found Acked-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-26wil6210: ethtool opsVladimir Kondratiev
Provide ethtool support; with support for interrupt coalescing through get_coalesce/set_coalesce. Placeholders for begin/complete will be used by runtime PM to make sure target is powered up while performing ethtool operations Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-26Merge tag 'master-2014-09-16' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== pull request: wireless-next 2014-09-22 Please pull this batch of updates intended for the 3.18 stream... For the mac80211 bits, Johannes says: "This time, I have some rate minstrel improvements, support for a very small feature from CCX that Steinar reverse-engineered, dynamic ACK timeout support, a number of changes for TDLS, early support for radio resource measurement and many fixes. Also, I'm changing a number of places to clear key memory when it's freed and Intel claims copyright for code they developed." For the bluetooth bits, Johan says: "Here are some more patches intended for 3.18. Most of them are cleanups or fixes for SMP. The only exception is a fix for BR/EDR L2CAP fixed channels which should now work better together with the L2CAP information request procedure." For the iwlwifi bits, Emmanuel says: "I fix here dvm which was broken by my last pull request. Arik continues to work on TDLS and Luca solved a few issues in CT-Kill. Eyal keeps digging into rate scaling code, more to come soon. Besides this, nothing really special here." Beyond that, there are the usual big batches of updates to ath9k, b43, mwifiex, and wil6210 as well as a handful of other bits here and there. Also, rtlwifi gets some btcoexist attention from Larry. Please let me know if there are problems! ==================== Had to adjust the wil6210 code to comply with Joe Perches's recent change in net-next to make the netdev_*() routines return void instead of 'int'. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-15fixup! wil6210: fix usage of print_hex_dump_debugVladimir Kondratiev
Use empty inline functions instead of empty #define. Fix for "unused variable" as reported below: tree: git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next.git master head: 167bf96dd87d2a8360cb9e9783006876dac4f579 commit: 871d8c4bbb0f23c29a21b63b1801071766f69b51 [45/62] wil6210: fix usage of print_hex_dump_debug config: i386-allyesconfig reproduce: git checkout 871d8c4bbb0f23c29a21b63b1801071766f69b51 make ARCH=i386 allyesconfig make ARCH=i386 All warnings: drivers/net/wireless/ath/wil6210/wmi.c: In function 'wmi_evt_rx_mgmt': >> drivers/net/wireless/ath/wil6210/wmi.c:341:10: warning: unused variable 'ie_len' [-Wunused-variable] size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, ^ >> drivers/net/wireless/ath/wil6210/wmi.c:340:13: warning: unused variable 'ie_buf' [-Wunused-variable] const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; ^ vim +/ie_len +341 drivers/net/wireless/ath/wil6210/wmi.c 2be7d22f Vladimir Kondratiev 2012-12-20 334 2be7d22f Vladimir Kondratiev 2012-12-20 335 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 2be7d22f Vladimir Kondratiev 2012-12-20 336 struct cfg80211_bss *bss; 8eea944a Vladimir Kondratiev 2014-06-16 337 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 8eea944a Vladimir Kondratiev 2014-06-16 338 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 8eea944a Vladimir Kondratiev 2014-06-16 339 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 8eea944a Vladimir Kondratiev 2014-06-16 340 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 8eea944a Vladimir Kondratiev 2014-06-16 341 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 8eea944a Vladimir Kondratiev 2014-06-16 342 u.beacon.variable); 8eea944a Vladimir Kondratiev 2014-06-16 343 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 8eea944a Vladimir Kondratiev 2014-06-16 344 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); :::::: The code at line 341 was first introduced by commit :::::: 8eea944af0efcdba09dac1ad220c9bfa68293279 wil6210: print more info about BSS found Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: fix for oops while stopping interfaceVladimir Kondratiev
When interface stopped while running intensive Rx traffic, the following oops observed: [89846.734683] Call trace: [89846.737117] [<ffffffc00083aa64>] dev_gro_receive+0xac/0x358 [89846.742674] [<ffffffc00083ae94>] napi_gro_receive+0x24/0xa4 [89846.748251] [<ffffffbffc1c2f88>] $x+0xec/0x1f8 [wil6210] wil_netif_rx_any [89846.753547] [<ffffffbffc1c4830>] $x+0x34/0x54 [wil6210] wil_release_reorder_frame [89846.758755] [<ffffffbffc1c48ac>] wil_release_reorder_frames+0x5c/0x78 [wil6210] [89846.766044] [<ffffffbffc1c4bf8>] wil_tid_ampdu_rx_free+0x20/0x48 [wil6210] [89846.772901] [<ffffffbffc1bedc8>] $x+0x190/0x1e8 [wil6210] [89846.778285] [<ffffffbffc1c0ed4>] wmi_event_worker+0x230/0x2f8 [wil6210] [89846.784865] [<ffffffc0000b0bc8>] process_one_work+0x278/0x3fc [89846.790591] [<ffffffc0000b1218>] worker_thread+0x200/0x330 [89846.796060] [<ffffffc0000b6664>] kthread+0xac/0xb8 [89846.800836] Code: b940c661 f9406a62 8b010041 f9400026 (f8636882) [89846.807008] ---[ end trace d6fdc17cd27d18f6 ]--- Reason is the following: when removing Rx vring (wil_netdev_ops.ndo_stop -> wil_stop -> wil_down -> __wil_down -> wil_rx_fini), Rx interrupt occurs. It trigger Rx NAPI, calling wil_rx_handle() that reaps (already cleaned) buffer, causing skb referring to garbage memory being set into reorder buffer. Then, network stack trying to access this buffer and fails. Prevent Rx NAPI from being scheduled if device going to stop. Bit wil_status_napi_en reflects NAPI enablement state, check it when triggering Rx NAPI. Testing shows that check for wil_status_napi_en sometimes gets negative, and new error message get printed - in this case kernel oops would be observed. Original oops is no more reproducible. This change requires also changes in the AP flows. Properly enable/disable NAPI for the AP. Make sure Rx VRING is disabled when resetting target. For this, promote __wil_up() and __wil_down() to the module scope, and use it in the relevant flows. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: rename [en|dis]able irq to [un]maskVladimir Kondratiev
To better reflect real action performed, rename: s/wil6210_disable_irq/wil_mask_irq/ s/wil6210_enable_irq/wil_unmask_irq/ Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: introduce separate completion for WMIDedy Lansky
re-use of wmi_ready for both FW ready event and for wmi_call was causing false "FW not ready" indication in case wmi_call() was invoked while reset took place. add wmi_call completion variable instead of re-using wmi_ready. Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: fix race condition between BACK event and Rx dataDedy Lansky
While handling Rx packet, BACK event arrives and frees tid_ampdu_rx array. This causes kernel panic while accessing already freed spinlock The fix is to remove tid_ampdu_rx[]'s spinlock and instead use single sta's spinlock to guard the whole tid_ampdu_rx array. Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: fix usage of print_hex_dump_debugVladimir Kondratiev
When CONFIG_DYNAMIC_DEBUG is not defined, print_hex_dump_debug is mapped directly to print_hex_dump which might cause printout to exist all the time Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: platform specific moduleVladimir Kondratiev
New module (wil_platform) for handling platform specific tasks Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: coding style fixesVladimir Kondratiev
- parentheses, indentation, typos - seq_puts() instead of seq_printf() with single argument - sizeof(var) vs. sizeof(type) Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-11wil6210: firmware downloadVladimir Kondratiev
Firmware download implemented but is still experimental feature; flag controlling it added, no_fw_load. It is true by default, use no_fw_load=N to activate feature. Reset flows also got some adjustment for the fw download to work Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-25wil6210: fix beamforming data reportingVladimir Kondratiev
When reading 'bf' file on debugfs, query beam forming status from firmware. Ignore CID's that return error or return all zeros. Remove obsolete code that used to maintain statistics on per-device basis, as now it is reported be per-CID and current. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-25wil6210: update copyright year 2014Vladimir Kondratiev
Fix Copyright headers in all files changed in 2014, to mention 2014 Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-25wil6210: map MAC timer for packet lifetime into debugfsVladimir Kondratiev
expose reading RGF_MAC_MTRL_COUNTER_0 in debugfs Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-18wil6210: add new register region for AGC tableVladimir Kondratiev
New register area defined in the firmware Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-18wil6210: map RGF_USER_USAGE_1 on the debugfsVladimir Kondratiev
Firmware sets this register with the offset of the firmware trace area within the peripheral memory region. Critical for the firmware trace to work Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-18wil6210: use same mapping table for FW addr translation and debugfsVladimir Kondratiev
Use single data source for all information regarding the firmware memory map. With this change "ucode_xxx" regions disappears since they are in fact part of larger "upper area" region Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-18wil6210: support for "sparrow" hardwareVladimir Kondratiev
New hardware release appears; it require some changes to properly support it. Introduce struct wil_board and "board" attribute in wil6210_priv; keep hardware variant information in this structure. fill it on probe(). Used in the reset flow. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19wil6210: interrupt statisticsVladimir Kondratiev
Track number of interrupts and Tx/Rx packets; expose through debugfs 'info'. Reset upon read. Used to analyse effectivness of interrupt coalescing and NAPI. Read twice with some interval like cat info > /dev/null; sleep 1; cat info Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19wil6210: add 'freq' and 'link' debugfs entriesVladimir Kondratiev
Expose operational frequency and link info Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19wil6210: BACK: track last dropped SSNVladimir Kondratiev
Track and print on debugfs Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19wil6210: Tx performance monitoringVladimir Kondratiev
For performance monitoring, trace time intervals when Tx vring is idle/not idle. Use CPU cycle counter for this, because jiffies is too rough, and other precise time measurement methods involve overhead while get_cycles() should be fast. This used to provide some estimation for percentage when Tx vring was idle, i.e. when hardware is under-utilized. Estimation is not precise because of many reasons - CPU frequency scaling, grt_cycles() may be per core etc. But still, it is good estimation Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19wil6210: Tx mgmt frame from debugfsVladimir Kondratiev
Provide 2 files on the debugfs: - "rxon": write channel (1..4) to open Rx on it, 0 to rxoff - "tx_mgmt": write binary frame, starting from MAC header one need to care about turning receiver on/off before/after tx_mgmt Correct sequence is: echo $channel > rxon cat mfmt_frame > tx_mgmt echo 0 > rxon Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-29wil6210: detect scan timeoutsVladimir Kondratiev
If scan has not finished in some reasonable time (10sec), interpret it as if firmware error occurs but was not reported. Firmware should report scan completion for every scan request, so it is error condition indeed. Perform firmware recovery procedure. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-29wil6210: limit fw error recovery attemptsVladimir Kondratiev
In case there is something fundamentally wrong with the firmware (example: RF cable disconnected), FW will always crash immediately after reset. This leads to infinite fw error recovery loop. Count consecutive unsuccessful error recovery attempts in a short period of time, and stop doing recovery after some reasonable count. It is still possible to manually reset fw doing interface down/up sequence. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville
2014-05-19cfg80211: constify MAC addresses in cfg80211 opsJohannes Berg
This propagates through all the drivers and mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-22wil6210: Use larger Tx ringsVladimir Kondratiev
When using scatter-gather, more descriptor entries get used. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-22wil6210: relaxed check for BACK start sequenceVladimir Kondratiev
Sometimes, due to the race between Rx path and WMI_BA_STATUS_EVENTID WMI event, few frames may be passed to the stack before reorder buffer allocated. Then, after BACK establishment, it start getting frames with sequence number ahead of SSN, and it get interpreted as missing frames. Then, BACK mechanism will wait for missing frames; data traffic will be stopped. In case of interface configured for DHCP, this data delay causes DHCP failure. Relax checking for sequence number; use sequence of 1-st frame handled by the buffer as SSN for this buffer. This is work-around, real fix should be done when proper BACK mechanism implemented. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: fix race between disconnect and Tx NAPIVladimir Kondratiev
When disconnecting some CID, corresponded Tx vring get released. During vring release, all descriptors get freed. It is possible that Tx NAPI working on the same vring simultaneously. If it happens, descriptor may be double freed. To protect from the race above, make sure NAPI won't process the same vring. Introduce 'enabled' flag in the struct vring_tx_data. Proceed with Tx NAPI only if 'enabled' flag set. Prior to Tx vring release, clear this flag and make sure NAPI get synchronized. NAPI enablement status protected by wil->mutex, add protection where it was missing and check for it. During reset, disconnect all peers first, then proceed with the Rx vring. It allows for the disconnect flow to observe proper 'wil->status' and correctly notify cfg80211 about connection status change Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: target reset flow updateVladimir Kondratiev
Use 'real' indication for hardware state. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: fw error recoveryVladimir Kondratiev
upon fw error interrupt - in STA mode, disconnect/cancel scan and then reset FW/HW added module param - no_fw_recovery which is false by default Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: Fix kernel oops in reset flowVladimir Kondratiev
wil_reset() removes vring's At the same time NAPI may be active performing Rx/Tx completion. If this happens, Rx/Tx polling functions going to access already removed vrings Make sure NAPI is idle and won't be started prior to vring removal. For this, track NAPI enabled state Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: reset on power goodVladimir Kondratiev
Configure hardware to perform full reset on "power good". This mean, reset HW on system boot. This improves card stability. By default this is off. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: sort HW registers definitionsVladimir Kondratiev
Put all registers in order for easier navigation; fix naming to reflect hardware cluster Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: fix for HW bug in interrupt setup logicVladimir Kondratiev
Hardware bug triggered by the MSI init while INTx asserted for some reason. De-assert INTx prior to MSI set-up Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: update target reset to support new HWVladimir Kondratiev
Support for new chip revision. Revision read from the internal register, PCIE config's "revision id" register do not indicate HW version properly Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17wil6210: generalize tx desc mappingVladimir Kondratiev
Introduce enum to describe mapping type; allow 'none' in addition to 'single' and 'page'; this is preparation for GSO Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>