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2016-04-15Re-enable 8192eu supportJes Sorensen
Revert "rtl8xxxu: Temporarily disable 8192eu device init" This reverts commit ccfe1e85322090649d2fae599e55300c1512bf15. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: 8192eu Fix bug in LDPC RX hang fixJes Sorensen
Write the adjusted value back to the correct register Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Remove unneeded 8192eu hackJes Sorensen
This removes an unneeded hack for 8192eu, and allows for initializing REG_FPGA0_XAB_RF_SW_CTRL at the same point as it is done for all other parts. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Split USB quirks into gen1 and gen2 quirksJes Sorensen
This removes a bunch of if () spaghetti and re-applies the USB bus quirks for 8188/8192 that had gotten lost. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Make PBP tuning a fileops parameterJes Sorensen
Rather than scattering the code with #ifdefs, use the fileops structure to hold device specific PBP values. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Do not backup RF_MODE_AG when it's never being usedJes Sorensen
This was expired by the vendor driver, but we never ended up using the backed up value. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Store device specific TRXFF boundary in the fileopsJes Sorensen
This removes another case of ugly if () clutter Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: REG_LDOA15_CTRL is only used on gen1 partsJes Sorensen
Move setting it to rtl8723au_init_phy_bb() Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Move loading of AGC table to device specific functionJes Sorensen
This moves the loading of the AGC table into init_phy_bb() and reduces the if() clutter. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Load AGC table before patching for 1T2R partsJes Sorensen
This should get the order right and avoid patching something that is later overwritten. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Split rtl8xxxu_init_phy_bb() into device specific functionsJes Sorensen
This reduces the if () clutter. Longer term it probably makes sense to split this between gen1 (8723au/8188cu/8192cu) and gen2 (8192eu/8723bu) devices. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Use descriptive bits for setting RX paths for 1T2R partsJes Sorensen
This reduce the use of magic values a little. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Correctly mask what was read from REG_CCK0_AFE_SETTINGJes Sorensen
The old code incorrectly wiped out bits 0-23 by mistake when setting the RX path for 1T parts. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Remove unused 8723bu path B IQ calibration codeJes Sorensen
The 8723bu is a combo WiFi/BT dongle, and path B is not used for WiFi, so no point in calibrating it. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Remove misleading warning from rtl8192eu_phy_iqcalibrate()Jes Sorensen
No actual code flow change, but no need to warn about something that isn't a prioblem. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Name RX descriptor types rxdesc16/rxdesc24Jes Sorensen
This caught a bug where too little memory was allocated for RX urbs for parts using 24 byte RX descriptors Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: byteswap the entire RX descriptor for 24 byte RX descriptorsJes Sorensen
This shouldn't affect little endian system, but may have prevented the driver working on big endian systems for devices with the larger 24 byte RX descriptors. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Use has_s0s1 for REG_S0S1 issues onlyJes Sorensen
Instead use tx_desc_size() to distinguish between gen1 (8723a/8192c/8188c) and gen2 (8723b/8192e) parts. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Implment rtl8192e_set_tx_power()Jes Sorensen
8192eu is a 2T part, so setting TX power for path A only, as done by rtl8723bu_set_tx_power() is not sufficient. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Do not try to set REG_LEDCFG2 on 8192euJes Sorensen
Presumably 8192eu devices do not have leds, so do not enable them. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Do not init FPGA0_TX_INFO on 8192euJes Sorensen
Like the 8723bu, the vendor driver does not set FPGA0_TX_INFO for 8192eu in the init sequence. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Do not set REG_PBP on 8192euJes Sorensen
The vendor driver does not set REG_PBP on 8192eu. Whether this is due to the device not supporting it or simply an oversight in the vendor driver is not clear. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Reorder chip quirks to follow flow of 8192eu driverJes Sorensen
Another flow order change to match the vendor driver. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Implement generic init_queue_reserved_page() functionJes Sorensen
Longer term we should switch all the chips over to use this function instead of the random chip specific ifdef hacks. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Reorg more code to match the flow of the 8192eu vendor driverJes Sorensen
This further reorganizes the init code flow to match that of the 8192eu vendor driver. This helps diffing the register write log against that of the vendor driver. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15rtl8xxxu: Reorder parts of init code to match the 8192eu vendor code flowJes Sorensen
In order to debug 8192eu support, reorder some init code to match the flow of the vendor driver. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: make mwifiex_insert_cmd_to_free_q local staticAndreas Fenkart
after factoring out mwifiex_cancel_pending_scan_cmd the function is not called outside of cmdevt file moved function to head of file to avoid forward declaration, also moved mwifiex_recycle_cmd_node since they are very similar Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: factor out mwifiex_cancel_pending_scan_cmdAndreas Fenkart
Releasing the scan_pending lock in mwifiex_check_next_scan_command introduces a short window where pending scan commands can be removed or added before removing them all in mwifiex_cancel_pending_scan_cmd. I think this is safe, since the worst thing to happen is that a pending scan cmd is removed by the command handler. Adding new scan commands is not possible while one is pending, see scan_processing flag. Since all commands are removed from the queue anyway, we don't care if some commands are removed by a different code path earlier, the final state remains the same. I assume, that the critical section needed for the check has been extended over clearing the pending scan queue out of convenience. The lock was already held and releasing it and grab it again was just more work. It doesn't seem to be necessary because of concurrency. Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: scan: replace pointer arithmetic with array accessAndreas Fenkart
improves readability Reviewed-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: scan: factor out dbg_security_flagsAndreas Fenkart
merge copy/paste code Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: scan: simplify ternary operators using gnu extensionAndreas Fenkart
"x ? x : y" can be simplified as "x ? : y" https://gcc.gnu.org/onlinedocs/gcc/Conditionals.html#Conditionals Reviewed-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: scan: factor out has_ieee_hdr/has_vendor_hdrAndreas Fenkart
Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15mwifiex: scan: simplify dereference of bss_desc fieldsAndreas Fenkart
given this structure: struct foo { struct bar { int baz; } } these accesses are equivalent: (*(foo->bar)).baz foo->bar->baz Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15devcoredump: add scatterlist supportAviya Erenfeld
Add scatterlist support (dev_coredumpsg) to allow drivers to avoid vmalloc() like dev_coredumpm(), while also avoiding the module reference that the latter function requires. This internally uses dev_coredumpm() with function inside the devcoredump module, requiring removing the const (which touches the driver using it.) Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-15ath9k: ar5008_hw_cmn_spur_mitigate: add missing mask_m & mask_p initialisationOleksij Rempel
by moving common code to ar5008_hw_cmn_spur_mitigate i forgot to move mask_m & mask_p initialisation. This coused a performance regression on ar9281. Fixes: f911085ffa88 ("ath9k: split ar5008_hw_spur_mitigate and reuse common code in ar9002_hw_spur_mitigate.") Reported-by: Gustav Frederiksen <lkml2017@openmailbox.org> Tested-by: Gustav Frederiksen <lkml2017@openmailbox.org> Cc: <stable@vger.kernel.org> # 4.2+ Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-15cxgb4: Set VPD size so we can read both VPD structuresHariprasad Shenai
Chelsio adapters have two VPD structures stored in the VPD: - offset 0x000: an abbreviated VPD, and - offset 0x400: the complete VPD. After 104daa71b396 ("PCI: Determine actual VPD size on first access"), the PCI core computes the valid VPD size by parsing the VPD starting at offset 0x0. That size only includes the abbreviated VPD structure, so reads of the complete VPD at 0x400 fail. Explicitly set the VPD size with pci_set_vpd_size() so the driver can read both VPD structures. [bhelgaas: changelog, split patches, rename to pci_set_vpd_size() and return int (not ssize_t)] Fixes: 104daa71b396 ("PCI: Determine actual VPD size on first access") Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-04-15mlxsw: spectrum_buffers: Use MLXSW_SP_PB_UNUSED define for unused pbJiri Pirko
Suggested-by: David Laight <David.Laight@ACULAB.COM> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-15mlxsw: spectrum_buffers: Use designated initializers for mlxsw_sp_pbsJiri Pirko
Suggested-by: David Laight <David.Laight@ACULAB.COM> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14tun: use per cpu variables for stats accountingPaolo Abeni
Currently the tun device accounting uses dev->stats without applying any kind of protection, regardless that accounting happens in preemptible process context. This patch move the tun stats to a per cpu data structure, and protect the updates with u64_stats_update_begin()/u64_stats_update_end() or this_cpu_inc according to the stat type. The per cpu stats are aggregated by the newly added ndo_get_stats64 ops. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14bgmac: fix MAC soft-reset bit for corerev > 4Felix Fietkau
Only core revisions older than 4 use BGMAC_CMDCFG_SR_REV0. This mainly fixes support for BCM4708A0KF SoCs with Ethernet core rev 5 (it means only some devices as most of BCM4708A0KF-s got core rev 4). This was tested for regressions on BCM47094 which doesn't seem to care which bit gets used. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14cdc_mbim: apply "NDP to end" quirk to all Huawei devicesBjørn Mork
We now have a positive report of another Huawei device needing this quirk: The ME906s-158 (12d1:15c1). This is an m.2 form factor modem with no obvious relationship to the E3372 (12d1:157d) we already have a quirk entry for. This is reason enough to believe the quirk might be necessary for any number of current and future Huawei devices. Applying the quirk to all Huawei devices, since it is crucial to any device affected by the firmware bug, while the impact on non-affected devices is negligible. The quirk can if necessary be disabled per-device by writing N to /sys/class/net/<iface>/cdc_ncm/ndp_to_end Reported-by: Andreas Fett <andreas.fett@secunet.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14bgmac: reset & enable Ethernet core before using itRafał Miłecki
This fixes Ethernet on D-Link DIR-885L with BCM47094 SoC. Felix reported similar fix was needed for his BCM4709 device (Buffalo WXR-1900DHP?). I tested this for regressions on BCM4706, BCM4708A0 and BCM47081A0. Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: spectrum_buffers: Implement occupancy monitoringJiri Pirko
Implement occupancy API introduced in devlink and mlxsw core. This is done by accessing SBPM register for Port-Pool and SBSR for Port-TC current and max occupancy values. Max clear is implemented using the same registers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: core: Introduce support for asynchronous EMAD register accessJiri Pirko
So far it was possible to have one EMAD register access at a time, locked by mutex. This patch extends this interface to allow multiple EMAD register accesses to be in fly at once. That allows faster processing on firmware side avoiding unused time in between EMADs. Measured speedup is ~30% for shared occupancy snapshot operation. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: core: Add mlxsw specific workqueue and use it for FDB notif. processingJiri Pirko
Follow-up patch is going to need to use delayed work as well and frequently. The FDB notification processing is already using that and also quite frequently. It makes sense to create separate workqueue just for mlxsw driver in this case and do not pollute system_wq. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: reg: Extend SBPM register for occupancy controlJiri Pirko
Since it is not possible to get and clear Port-Pool occupancy data using SBSR register, there's a need to implement that using SBPM. Extend pack helper and add unpack helper to get occupancy values. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: reg: Add Shared Buffer Status register definitionJiri Pirko
This register allows to query HW for current and maximal buffer usage. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: core: Add devlink shared buffer occupancy callbacksJiri Pirko
Add middle layer in mlxsw core code to forward shared buffer occupancy calls into specific ASIC drivers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: spectrum_buffers: Implement shared buffer configurationJiri Pirko
Implement previously introduced mlxsw core shared buffer API. For Spectrum, that is done utilizing registers SBPR, SBCM and SBPM. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14mlxsw: core: Add mlxsw_core_port_driver_priv helperJiri Pirko
Needed in following patch. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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