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path: root/drivers/net/wireless/rtlwifi/rtl8821ae
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2015-11-09rtlwifi: rtl8821ae: Fix system lockups on bootLarry Finger
commit 54328e64047a54b8fc2362c2e1f0fa16c90f739f upstream. In commit 1277fa2ab2f9 ("rtlwifi: Remove the clear interrupt routine from all drivers"), the code that cleared all interrupt enable bits before setting them was removed for all PCI drivers. This fixed an issue that caused TX to be blocked for 3-5 seconds. On some RTL8821AE units, this change causes soft lockups to occur on boot. For that reason, the portion of the earlier commit that applied to rtl8821ae is reverted. Kernels 4.1 and newer are affected. See http://marc.info/?l=linux-wireless&m=144373370103285&w=2 and https://bugzilla.opensuse.org/show_bug.cgi?id=944978 for two cases where this regression affected user systems. Note that this bug does not appear on any of the developer's setups. For those users whose systems are affected by the TX blockage, but do not lock up on boot, a module parameter is added to disable the interrupt clear Fixes: 1277fa2ab2f9 ("rtlwifi: Remove the clear interrupt routine from all drivers") Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-29rtlwifi: rtl8821ae: Fix an expression that is always falseLarry Finger
commit 251086f588720277a6f5782020a648ce32c4e00b upstream. In routine _rtl8821ae_set_media_status(), an incorrect mask results in a test for AP status to always be false. Similar bugs were fixed in rtl8192cu and rtl8192de, but this instance was missed at that time. Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: David Binderman <dcb314@hotmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-03rtlwifi: Remove the clear interrupt routine from all driversVincent Fann
commit 1277fa2ab2f9a624a4b0177119ca13b5fd65edd0 upstream. Several of these drivers have there TX randomly blocked for 3~5 seconds while measuring tx throughput (iperf). The root couse happens in rtl_pci_flush(). The function uses a while-loop to wait for TX queue length to decrease to 0. The TX queue length counts the number of packets that are queued in the driver. The driver relys on the TX OK interrupt to return skb and reduce TX queue length. The interrupt subroutine disables interupts, reads the interrupt registers, and then clears the registers in the beginning of _rtl_pci_interrupt(). After all interupts process are finished, the driver invokes enable_interrupt() to enable interupts. This behavior is normal for an interrupt subroutine. But enable_interrupt() invokes clear_interrupt() again. This unexpected interrupt clearing may cleari me fresh TX OK interrupts. These missing interrupts cause TX queue length to never reduce to 0i, which causes rtl_pci_flush() to be stuck in unterminated while-loop. This patch removes clear_interrupt() in enable_interrupt() to avoid this behavior. Signed-off-by: Vincent Fann <vincent_fann@realtek.com> Signed-off-by: Shao Fu <shaofu@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: 1) Add BQL support to via-rhine, from Tino Reichardt. 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers can support hw switch offloading. From Floria Fainelli. 3) Allow 'ip address' commands to initiate multicast group join/leave, from Madhu Challa. 4) Many ipv4 FIB lookup optimizations from Alexander Duyck. 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel Borkmann. 6) Remove the ugly compat support in ARP for ugly layers like ax25, rose, etc. And use this to clean up the neigh layer, then use it to implement MPLS support. All from Eric Biederman. 7) Support L3 forwarding offloading in switches, from Scott Feldman. 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed up route lookups even further. From Alexander Duyck. 9) Many improvements and bug fixes to the rhashtable implementation, from Herbert Xu and Thomas Graf. In particular, in the case where an rhashtable user bulk adds a large number of items into an empty table, we expand the table much more sanely. 10) Don't make the tcp_metrics hash table per-namespace, from Eric Biederman. 11) Extend EBPF to access SKB fields, from Alexei Starovoitov. 12) Split out new connection request sockets so that they can be established in the main hash table. Much less false sharing since hash lookups go direct to the request sockets instead of having to go first to the listener then to the request socks hashed underneath. From Eric Dumazet. 13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk. 14) Support stable privacy address generation for RFC7217 in IPV6. From Hannes Frederic Sowa. 15) Hash network namespace into IP frag IDs, also from Hannes Frederic Sowa. 16) Convert PTP get/set methods to use 64-bit time, from Richard Cochran. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits) fm10k: Bump driver version to 0.15.2 fm10k: corrected VF multicast update fm10k: mbx_update_max_size does not drop all oversized messages fm10k: reset head instead of calling update_max_size fm10k: renamed mbx_tx_dropped to mbx_tx_oversized fm10k: update xcast mode before synchronizing multicast addresses fm10k: start service timer on probe fm10k: fix function header comment fm10k: comment next_vf_mbx flow fm10k: don't handle mailbox events in iov_event path and always process mailbox fm10k: use separate workqueue for fm10k driver fm10k: Set PF queues to unlimited bandwidth during virtualization fm10k: expose tx_timeout_count as an ethtool stat fm10k: only increment tx_timeout_count in Tx hang path fm10k: remove extraneous "Reset interface" message fm10k: separate PF only stats so that VF does not display them fm10k: use hw->mac.max_queues for stats fm10k: only show actual queues, not the maximum in hardware fm10k: allow creation of VLAN on default vid fm10k: fix unused warnings ...
2015-04-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "Usual trivial tree updates. Nothing outstanding -- mostly printk() and comment fixes and unused identifier removals" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: goldfish: goldfish_tty_probe() is not using 'i' any more powerpc: Fix comment in smu.h qla2xxx: Fix printks in ql_log message lib: correct link to the original source for div64_u64 si2168, tda10071, m88ds3103: Fix firmware wording usb: storage: Fix printk in isd200_log_config() qla2xxx: Fix printk in qla25xx_setup_mode init/main: fix reset_device comment ipwireless: missing assignment goldfish: remove unreachable line of code coredump: Fix do_coredump() comment stacktrace.h: remove duplicate declaration task_struct smpboot.h: Remove unused function prototype treewide: Fix typo in printk messages treewide: Fix typo in printk messages mod_devicetable: fix comment for match_flags
2015-03-30rtlwifi: Change REG_CR+2 to MSRTaehee Yoo
I changed REG_CR+2 and (MSR) to MSR because MSR is defined as (REG_CR + 2). Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-16rtlwifi: No need to export rtl_evm_dbm_jaguar anymorePriit Laes
This function is used only by rtl8821ae so move it there Signed-off-by: Priit Laes <plaes@plaes.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-06treewide: Fix typo in printk messagesMasanari Iida
This patch fix spelling typo in printk messages. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-03rtlwifi: rtl8821ae: Remove duplicate hex prefixesRasmus Villemoes
The # flag in %X means print a 0X prefix. Remove the extra 0x prefix. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-03rtlwifi: Remove unused RF6052_MAX_REG definePriit Laes
Signed-off-by: Priit Laes <plaes@plaes.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-03rtlwifi: Remove unused defines from driver-specific def.hPriit Laes
HAL_RETRY_LIMIT_* RESET_DELAY_8185 RT_IBSS_INT_MASKS RT_AC_INT_MASKS NUM_OF_* BT_*, MAX_{LINES,BYTES}_*, *_THREE_WIRE *_QUEUE related Signed-off-by: Priit Laes <plaes@plaes.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26rtlwifi: Clear ACM_CTRL AC3_VO bit correctlyJes Sorensen
All hw driver components in the rtlwifi driver, except for the rtl8192de component has this bug. They would clear BE bit in the ACM_CTRL register instead of the VO bit when processing the VO queue. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-09rtlwifi: Move macro definitions to coreLarry Finger
Several of the drivers still were defining their own copies of various macros. These are all moved into the core. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-09rtlwifi: rtl8821ae: Convert driver to use common DM table initializationLarry Finger
Convert driver to use routine rtl_dm_diginit(). Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-09rtlwifi: rtl8192c-common: Convert driver to use common DM table initializationLarry Finger
These changes convert both rtl8192ce and rtl8192cu to use the new routine. Some additional definitions are needed in the core, thus several of the headers for other drivers are affected, but no other executable code is changed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-09rtlwifi: Create new routine to initialize the DM tablesLarry Finger
Each of the drivers contains a routine that initializes the dm_digtable member of the driver's private area. As a first step toward reducing the size of the drivers, a copy of this driver is created in rtlwifi, and the definitions of the parameters are moved there. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-09rtlwifi: Unify variable naming for all driversLarry Finger
Some drivers refer to a particular quantity in the driver's private are by one name, while others use a different name. These differences are removed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-24rtlwifi: rtl8821ae: Switch to use common rate control routineLarry Finger
With this change, all of the drivers now use the common routine. As this driver has VHT capability, an additional parameter is needed, thus all the drivers had to be modified. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-24rtlwifi: rtl8821ae: Add VHT rate descriptorsLarry Finger
Device RTL8821AE is the first if the rtlwifi devices to implement 802.11ac capability. As a result, VHT rate descriptors are needed. In addition, the driver is converted to use the descriptors in rtlwifi. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-24rtlwifi: Convert all drivers to use a common set of rate descriptorsLarry Finger
This common set of rate descriptors is renamed to be DESC_RATExx. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-24rtlwifi: rtl8821ae: Fix typos in power-sequence macroLarry Finger
Two of the macros that control power sequencing have values to be set that contain bits that are not covered by the associated mask. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-24rtlwifi: rtl8821ae: Simplify loading of WOWLAN firmwareTroy Tan
The existing method for loading both normal and WOWLAN firmware for the device duplicates a lot of code. This solution is much cleaner. Signed-off-by: Troy Tan <troy_tan@realsil.com.cn> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-15rtlwifi: rtl8821ae: fix misspelling of current function in stringJulia Lawall
Replace a misspelled function name by %s and then __func__. 8821 was written as 8812. This was done using Coccinelle, including the use of Levenshtein distance, as proposed by Rasmus Villemoes. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-08Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-11-25rtlwifi: rtl8821ae: Fix 5G detection problemLarry Finger
The changes associated with moving this driver from staging to the regular tree missed one section setting the allowable rates for the 5GHz band. This patch is needed to fix the regression reported in Bug #88811 (https://bugzilla.kernel.org/show_bug.cgi?id=88811). Reported-by: Valerio Passini <valerio.passini@unicam.it> Tested-by: Valerio Passini <valerio.passini@unicam.it> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Valerio Passini <valerio.passini@unicam.it> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-24net: wireless: rtlwifi: Do not always include drivers in obj-mAndreas Ruprecht
In four of the rtlwifi drivers, the Makefile contains superfluous statements indicating the compilation of the driver as an LKM regardless of the corresponding Kconfig option. If the corresponding option is set to 'y', the build system will then see the object file in obj-m and obj-y, which leads to a compilation as a built-in only. Even though this leads to the desired behavior, the unconditional appearance in obj-m is confusing for someone reading the Makefile. This patch removes the superfluous Makefile statements. Signed-off-by: Andreas Ruprecht <rupran@einserver.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-19Merge commit '4e6ce4dc7ce71d0886908d55129d5d6482a27ff9' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-10-30rtlwifi: rtl8821ae: Remove extra semicolonsLarry Finger
The kbuild test robot reports that there are extra semicolons in this driver. All of them are caused by using "};" rather than "}" at the end of a switch statement. This patch does not change any functionality. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Murilo Opsfelder Araujo <mopsfelder@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-23rtlwifi: rtl8821ae: Fix possible array overrunLarry Finger
The kbuild test robot reported a possible array overrun. The affected code checks for overruns, but fails to take the steps necessary to fix them. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-02rtlwifi: Fix static checker warnings for various driversLarry Finger
Indenting errors yielded the following static checker warnings: drivers/net/wireless/rtlwifi/rtl8192ee/hw.c:533 rtl92ee_set_hw_reg() warn: add curly braces? (if) drivers/net/wireless/rtlwifi/rtl8192ee/hw.c:539 rtl92ee_set_hw_reg() warn: add curly braces? (if) An unreleased version of the static checker also reported: drivers/net/wireless/rtlwifi/rtl8723be/trx.c:550 rtl8723be_rx_query_desc() warn: 'hdr' can't be NULL. drivers/net/wireless/rtlwifi/rtl8188ee/trx.c:621 rtl88ee_rx_query_desc() warn: 'hdr' can't be NULL. drivers/net/wireless/rtlwifi/rtl8192ee/trx.c:567 rtl92ee_rx_query_desc() warn: 'hdr' can't be NULL. drivers/net/wireless/rtlwifi/rtl8821ae/trx.c:758 rtl8821ae_rx_query_desc() warn: 'hdr' can't be NULL. drivers/net/wireless/rtlwifi/rtl8723ae/trx.c:494 rtl8723e_rx_query_desc() warn: 'hdr' can't be NULL. drivers/net/wireless/rtlwifi/rtl8192se/trx.c:315 rtl92se_rx_query_desc() warn: 'hdr' can't be NULL. drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:392 rtl92ce_rx_query_desc() warn: 'hdr' can't be NULL. All of these are fixed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-30rtlwifi: rtl8188ee: rtl8723ae: rtl8821ae: Initialize some variablesLarry Finger
In a number of places, kmalloc or valloc were used to acquire memory. To ensure that these locations are correctly initialized, the calls were changed to kzalloc and vzalloc. The change fixes a problem that was causing HT operations to be cancelled. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-30rtlwifi: rtl8188ee: rtl8192com: rtl8192cu: rtl8192ee: rtl8723ae: rtl87323be: ↵Larry Finger
rtl8821ae: Use common cmd_send_packet A locking problem was found in routine _rtl92ee_cmd_send_packet() that led to system freezes. Upon inspection, several drivers had the same problem; however, the routines all used the same code. The common code has been moved into rtlwifi. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-30rtlwifi: rtl8723be: Update driver to match Realtek release of 06/28/14Larry Finger
This patch updates the driver to match the latest Realtek release, and it is an important step in getting the internal code source at Realtek to match the code in the kernel. The primary reason for this is to make it easier for Realtek to maintain the kernel source without requiring an intermediate like me. In this process of merging the two source repositories, there are a lot of changes in both, and this commit is rather large. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-30rtlwifi: rtl8188ee: rtl8821ae: Fix a queue locking problemLarry Finger
The code fails to lock the skb queue, which leads to a number of problems. This patch also fixes a Sparse warning about using a memset of 1 byte. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: troy_tan@realsil.com.cn Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-26rtlwifi: Fix problems with building an allyesconfigLarry Finger
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-26rtlwifi: rtl8821ae: Move driver from staging to regular treeLarry Finger
This driver was entered into staging a few cycles ago because there was not time to integrate the Realtek version into the support routines in the kernel. Now that there is an effort to converg the code base from Linux and the Realtek repo, it is time to move this driver. In addition, all the updates included in the 06/28/2014 version of the Realtek drivers are included here. With this change, it will be necessary to delete the staging driver. That will be handled in a separate patch. As it impacts the staging tree, such a patch is sent to a different destination. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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