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2016-05-06lightnvm: rename dma helper functionsJavier González
Until now, the dma pool have been exclusively used to allocate the ppa list being sent to the device. In pblk (upcoming), we use these pools to allocate metadata too. Thus, we generalize the names of some variables on the dma helper functions to make the code more readable. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: enable metadata to be sent to deviceJavier González
Enable metadata buffer to be sent to the device through the metadata field on the physical rw nvme command. The size of the metadata buffer must follow dev->oob_size * # of PPAs. Signed-off-by: Javier González <javier@cnexlabs.com> Updated description. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: do not free unused metadata on rrpcJavier González
rrpc does not save any metadata on a given request. Thus, do not attempt to free the metadata dma region. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: fix out of bound ppa lun id on bb tblMatias Bjørling
The ppa configured for retrieving the bad block table uses the internal lun id to setup the get bad block ppa. This increases monotonically with the number luns available. When configuring a ppa, the channel and lun must be specified separately, leading to an out of bound memory access in gennvm_block_bb when lun id goes beyond the luns available within a channel. Additional, remove out of bound check in gennvm_block_bb(), as it was a buggy to begin with. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: refactor set_bb_tbl for accepting ppa listMatias Bjørling
The set_bb_tbl takes struct nvm_rq and only uses its ppa_list and nr_pages internally. Instead, make these two variables explicit. This allows a user to call it without initializing a struct nvm_rq first. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: move responsibility for bad blk mgmt to targetMatias Bjørling
We move the responsibility of managing the persistent bad block table to the target. The target may choose to mark a block bad or retry writing to it. Never the less, it should be the target that makes the decision and not the media manager. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: make nvm_set_rqd_ppalist() aware of vblksMatias Bjørling
A virtual block enables a block to identify multiple physical blocks. This is useful for metadata where a device media supports multiple planes. In that case, a block, with multiple planes can be managed as a single vblk. Reducing the metadata required by one forth. nvm_set_rqd_ppalist() takes care of expanding a ppa_list with vblks automatically. However, for some use-cases, where only a single physical block is required, the ppa_list should not be expanded. Therefore, add a vblk parameter to nvm_set_rqd_ppalist(), and only expand the ppa_list if vblk is set. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: remove struct factory_blksMatias Bjørling
Now that device ops->get_bb_table no longer uses a callback, the struct factory_blks can be removed. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: refactor device ops->get_bb_tbl()Matias Bjørling
The device ops->get_bb_tbl() takes a callback, that allows the caller to use its own callback function to update its data structures in the returning function. This makes it difficult to send parameters to the callback, and usually is circumvented by small private structures, that both carry the callers state and any flags needed to fulfill the update. Refactor ops->get_bb_tbl() to fill a data buffer with the status of the blocks returned, and let the user call the callback function manually. That will provide the necessary flags and data structures and simplify the logic around ops->get_bb_tbl(). Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: introduce nvm_for_each_lun_ppa() macroMatias Bjørling
Users that wish to iterate all luns on a device. Must create a struct ppa_addr and separate iterators for channels and luns. To set the iterators, two loops are required, one to iterate channels, and another to iterate luns. This leads to decrease in readability. Introduce nvm_for_each_lun_ppa, which implements the nested loop and sets ppa, channel, and lun variable for each loop body, eliminating the boilerplate code. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: refactor dev->online_target to global nvm_targetsSimon A. F. Lund
A target name must be unique. However, a per-device registration of targets is maintained on a dev->online_targets list, with a per-device search for targets upon registration. This results in a name collision when two targets, with the same name, are created on two different targets, where the per-device list is not shared. Signed-off-by: Simon A. F. Lund <slund@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: rename nvm_targets to nvm_tgt_typeSimon A. F. Lund
The functions nvm_register_target(), nvm_unregister_target() and associated list refers to a target type that is being registered by a target type module. Rename nvm_*_targets() to nvm_*_tgt_type(), so that the intension is clear. This enables target instances to use the _nvm_*_targets() naming. Signed-off-by: Simon A. F. Lund <slund@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: store rrpc->soffset in device sector sizeWenwei Tao
Since we mainly use soffset in device sector size, we therefore store this value in rrpc->soffset, instead of the offset in 512byte sector size. This eliminates the "(ilog2(dev->sec_size) - 9)" calculation on each I/O. Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com> Updated patch description. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: calculate rrpc total blocks and sectors up frontWenwei Tao
Calculate rrpc total blocks and sectors up front, make sense to use them. For example, we use rrpc->nr_sects to calculate rrpc area size, but it makes no sense if we don't initialize it up front, since it would be zero until we finish rrpc luns init. Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: avoid memory leak when lun_map kcalloc failsMatias Bjørling
A memory leak occurs if the lower page table is initialized and the following dev->lun_map fails on allocation. Rearrange the initialization of lower page table to allow dev->lun_map to fail gracefully without memory leak. Reviewed by: Johannes Thumshirn <jthumshirn@suse.de> Move kfree of dev->lun_map to nvm_free() Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: move block fold outside of get_bb_tbl()Matias Bjørling
The get block table command returns a list of blocks and planes with their associated state. Users, such as gennvm and sysblk, manages all planes as a single virtual block. It was therefore natural to fold the bad block list before it is returned. However, to allow users, which manages on a per-plane block level, to also use the interface, the get_bb_tbl interface is changed to not fold by default and instead let the caller fold if necessary. Reviewed by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: add fpg_size and pfpg_size to struct nvm_devMatias Bjørling
The flash page size (fpg) and size across planes (pfpg) are convenient to know when allocating buffer sizes. This has previously been a calculated in various places. Replace with the pre-calculated values. Reviewed by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: implement nvm_submit_ppa_listMatias Bjørling
The nvm_submit_ppa function assumes that users manage all plane blocks as a single block. Extend the API with nvm_submit_ppa_list to allow the user to send its own ppa list. If the user submits more than a single PPA, the user must take care to allocate and free the corresponding ppa list. Reviewed by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: handle submit_io failureMatias Bjørling
The device ->submit_io() callback might fail to submit I/O to device. In that case, the nvm_submit_ppa function should not wait for completion. Instead return the ->submit_io() error. Reviewed by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06lightnvm: fix "warning: ‘ret’ may be used uninitialized"Jeff Mahoney
This fixes the following warnings: drivers/lightnvm/sysblk.c:125:9: warning: ‘ret’ may be used uninitialized in this function drivers/lightnvm/sysblk.c:275:15: warning: ‘ret’ may be used uninitialized in this function In both cases, ret is only set from within a loop that may not be entered. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-06remoteproc: core: Task sync during rproc_fw_boot()Lee Jones
By default, rproc_fw_boot() needs to wait for rproc to be configured, but a race may occur when using rpmsg/virtio. In this case, it can be called locally in a safe manor. This patch represents two usecases: - External call (via exported rproc_boot()), which waits - Internal call can use 'nowait' version of rproc_boot() Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-05-06[media] v4l2-ioctl.c: improve cropcap compatibility codeHans Verkuil
- Add a check for the case that both the cropcap and g_selection ops are NULL. This shouldn't happen, but I feel happier if the code guards against this. - If g_selection exists, then ignore ENOTTY and ENOIOCTLCMD error codes from cropcap. Just assume square pixelaspect ratio in that case. This situation can happen if the bridge driver's cropcap op calls the corresponding subdev's op. So the cropcap ioctl is set, but it might return ENOIOCTLCMD anyway. In the past this would just return an error which is wrong. - Call cropcap first and let g_selection overwrite the bounds and defrect. This safeguards against subdev cropcap implementations that set those rectangles as well. What g_selection returns has priority over what such cropcap implementations return. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-06[media] smiapp: provide g_skip_top_lines method in sensor opsIvaylo Dimitrov
Some sensors (like the one in Nokia N900) provide metadata in the first couple of lines. Make that information information available to the pipeline. Use u16 instead, this is a 16-bit value. Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-06[media] media: i2c/adp1653: fix check of devm_gpiod_get() error codeVladimir Zapolskiy
The devm_gpiod_get() function returns either a valid pointer to struct gpio_desc or ERR_PTR() error value, check for NULL is bogus. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-06Merge branch 'clk-hi3519' into clk-nextStephen Boyd
* clk-hi3519: clk: hisilicon: add CRG driver for hi3519 soc clk: hisilicon: export some hisilicon APIs to modules reset: hisilicon: add reset controller driver for hisilicon SOCs
2016-05-06clk: hisilicon: add CRG driver for hi3519 socJiancheng Xue
The CRG(Clock and Reset Generator) block provides clock and reset signals for other modules in hi3519 soc. Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06clk: hisilicon: export some hisilicon APIs to modulesJiancheng Xue
Change some arguments to constant type. Export some hisilicon APIs to modules. Signed-off-by: Jiancheng Xue <xuejiancheng@huawei.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06reset: hisilicon: add reset controller driver for hisilicon SOCsJiancheng Xue
In most of hisilicon SOCs, reset controller and clock provider are combined together as a block named CRG (Clock and Reset Generator). This patch mainly implements the reset function. Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06rpmsg: add THIS_MODULE to rpmsg_driver in rpmsg coreAndrew F. Davis
Add register_rpmsg_driver helper macro that adds THIS_MODULE to rpmsg_driver for the registering driver. We rename and modify the existing register_rpmsg_driver to enable this. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-05-06clk: bcm/kona: Do not use sizeof on pointer typeVaishali Thakkar
When sizeof is applied to a pointer typed expression, it gives the size of the pointer. So, here do not use sizeof on pointer type. Also, silent checkpatch.pl by using kmalloc_array over kmalloc. Note that this has no effect on runtime because 'parent_names' is a pointer to a pointer. Problem found using Coccinelle. Signed-off-by: Vaishali Thakkar <vaishali.thakkar@oracle.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06clk: qcom: msm8916: Fix crypto clock flagsAndy Gross
This patch adds the CLK_SET_RATE_PARENT flag for the crypto core and ahb blocks. Without this flag, clk_set_rate can fail for certain frequency requests. Signed-off-by: Andy Gross <andy.gross@linaro.org> Fixes: 3966fab8b6ab ("clk: qcom: Add MSM8916 Global Clock Controller support") Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06Merge tag 'imx-clk-4.7-2' of ↵Stephen Boyd
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next Pull i.MX clk updates from Shawn Guo: - Update clk-pllv3 driver to get it return correct frequency for Ethernet PLL on i.MX7D. - Correct ahb clock mux settings for i.MX7D per latest hardware document. * tag 'imx-clk-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: clk: imx7d: fix ahb clock mux 1 clk: imx: return correct frequency for Ethernet PLL
2016-05-06Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Fixes for i915, amdgpu/radeon and imx. The IMX fix is for an autoloading regression found in Fedora. The radeon fixes, are the same fix to amdgpu/radeon to avoid a hardware lockup in some circumstances with a bad mode, and a double free bug I took a few hours chasing down the other morning. The i915 fixes are across the board, all stable material, and fixing some hangs and suspend/resume issues, along with a live status regressions" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading drm/amdgpu: make sure vertical front porch is at least 1 drm/radeon: make sure vertical front porch is at least 1 drm/amdgpu: set metadata pointer to NULL after freeing. drm/i915: Make RPS EI/thresholds multiple of 25 on SNB-BDW drm/i915: Fake HDMI live status drm/i915: Fix eDP low vswing for Broadwell drm/i915/ddi: Fix eDP VDD handling during booting and suspend/resume drm/i915: Fix system resume if PCI device remained enabled drm/i915: Avoid stalling on pending flips for legacy cursor updates
2016-05-06clk: nxp: lpc18xx: Initialize clk_init_data::flags to 0Stephen Boyd
Failure to initialize this flag to 0 by default can result in stack junk filling the clk_init_data structure and weird things happen. Joachim noticed that the critical clk feature started triggering for these clks causing boot failures, when it really shouldn't have happened: BUG: scheduling while atomic: swapper/0/0x00000002 CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-rc6-next-20160505-00001-g5c8320450d1c #826 Hardware name: NXP LPC18xx/43xx (Device Tree) [<2800be81>] (unwind_backtrace) from [<2800b22f>] (show_stack+0xb/0xc) [<2800b22f>] (show_stack) from [<2801ea21>] (__schedule_bug+0x2d/0x44) [<2801ea21>] (__schedule_bug) from [<281dc937>] (__schedule+0x3b/0x268) [<281dc937>] (__schedule) from [<281dcbbb>] (schedule+0x57/0x64) [<281dcbbb>] (schedule) from [<281de8ef>] (schedule_timeout+0xfb/0x120) [<281de8ef>] (schedule_timeout) from [<28030fcd>] (msleep+0xf/0x12) [<28030fcd>] (msleep) from [<28165a6d>] (clk_creg_32k_prepare+0x1f/0x24) [<28165a6d>] (clk_creg_32k_prepare) from [<281620d5>] (clk_core_prepare+0x1d/0x36) [<281620d5>] (clk_core_prepare) from [<2816340b>] (clk_register+0x22f/0x318) [<2816340b>] (clk_register) from [<282b06c9>] (lpc18xx_creg_clk_init+0x55/0x84) [<282b06c9>] (lpc18xx_creg_clk_init) from [<282b0149>] (of_clk_init+0xc1/0x12c) [<282b0149>] (of_clk_init) from [<282a665d>] (time_init+0x15/0x20) [<282a665d>] (time_init) from [<282a457d>] (start_kernel+0x169/0x274) [<282a457d>] (start_kernel) from [<28008025>] (0x28008025) bad: scheduling from the idle thread! CPU: 0 PID: 0 Comm: swapper Tainted: G W 4.6.0-rc6-next-20160505-00001-g5c8320450d1c #826 Fix this by initializing the flags member to 0. Acked-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06clk/axs10x: Add I2S PLL clock driverJose Abreu
The ARC SDP I2S clock can be programmed using a specific PLL. This patch has the goal of adding a clock driver that programs this PLL. At this moment the rate values are hardcoded in a table but in the future it would be ideal to use a function which determines the PLL values given the desired rate. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06Merge remote-tracking branches 'spi/fix/fsl-dspi', 'spi/fix/omap2-mcspi', ↵Mark Brown
'spi/fix/pxa2xx' and 'spi/fix/ti-qspi' into spi-linus
2016-05-06libnvdimm, pfn: fix ARCH=alpha allmodconfig build failureDan Williams
I had relied on the kbuild robot for cross build coverage, however it only builds alpha_defconfig. Switch from HPAGE_SIZE to PMD_SIZE, which is more widely defined. Fixes: 658922e57b84 ("libnvdimm, pfn: fix memmap reservation sizing") Cc: <stable@vger.kernel.org> Reported-by: Guenter Roeck <guenter@roeck-us.net> Tested-by: Guenter Roeck <guenter@roeck-us.net> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-05-06spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanupAxel Lin
Current code does not use ctldata at all, so remove spi_set_ctldata call. spi_setup() will set spi->bits_per_word = 8 if it was not set, so remove !spi->max_speed_hz checking. The spi core allows absent of spi->max_speed_hz setting, if it was not set spi_setup() assigns spi->master->max_speed_hz to it. spi core allows spi->max_speed_hz > spi->master->max_speed_hz, in this case spi core will limit the transfer speed to ensure xfer->speed_hz won't greater than spi->master->max_speed_hz so remove checking if spi->max_speed_hz is higher than spi->master->max_speed_hz. As a result, both pic32_sqi_setup() and pic32_sqi_cleanup() can be removed. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-06regulator: tps65917/palmas: Simplify multiple dereference of match->of_nodeNishanth Menon
Just dereference match->of_node once instead of using match->of_node. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-06regulator: tps65917/palmas: Handle possible memory allocation failureNishanth Menon
Stop the palmas regulator driver from imagining that the allocations will always succeed. Since regulator dt nodes are optional in nature and can be described in downstream drivers via platform data, continue to maintain code flow as prior when of node is not found. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-06regulator: tps65917/palmas: Simplify multiple dereference of ↵Nishanth Menon
pdata->reg_init[idx] Converting dt to platform data logic involves picking up information that is unique per regulator, however we can improve readability of the code by allocating and referencing pdata->reg_init[idx] once in the loop. While at it, use sizeof(*pointer) when allocating pointer. This allows for structure name changes with minimal code change. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-06regulator: tps65917/palmas: Simplify multiple dereference of ↵Nishanth Menon
ddata->palmas_matches[idx] Converting dt to platform data logic involves picking up information that is unique per regulator, however we can improve readability of the code by dereferencing ddata->palmas_matches[idx] once in the loop. While at it fix reuse of generic palmas_matches common variable while reporting error for a specific regulator (which may be from 65917/palmas list). Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-06EDAC, ie31200_edac: Add Skylake supportJason Baron
Skylake adjusts some register locations, but otherwise follows the existing model quite closely. I was able to verify that the 'ce_count' increments when 'bad dimms' are used. The accounting of 'ce_count' and 'ue_count' is the primary functionality of interest for us. Tested on Intel(R) Xeon(R) CPU E3-1260L v5 @ 2.90GHz. Signed-off-by: Jason Baron <jbaron@akamai.com> Acked-by: Tony Luck <tony.luck@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1462547927-22679-1-git-send-email-jbaron@akamai.com Signed-off-by: Borislav Petkov <bp@suse.de>
2016-05-06mtd: nand_bch: fix spelling of "probably"Brian Norris
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-05-06ath10k: release pre_cal_file while unloading driverRajkumar Manoharan
Failing to release pre_cal_file caldata on deinit causes memory leak. Fixes: b131129d9657 ("ath10k: fix calibration init sequence of qca99x0") Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06ath10k: update bss channel survey informationRajkumar Manoharan
During hw scan, firmware sends two channel information events (pre- complete, complete) to host for each channel change. The snap shot of cycle counters (rx_clear and total) between these two events are given for survey dump. In order to get latest survey statistics of all channels, a scan request has to be issued. In general, an AP DUT is brought up, it won't leave BSS channel except few cases like overlapping bss or radar detection. So survey statistics of bss channel is always referring to older data that are collected before starting AP (either ACS/OBSS scan). To collect latest survey information from target, firmware provides WMI interface to read cycle counters from hardware. For each survey dump request, BSS channel cycle counters are read and cleared in hardware. This makes sure that behavior is in align with ath9k survey report. So survey dump always gives snap shot of cycle counters b/w two survey requests. Signed-off-by: Yanbo Li <yanbol@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06ath10k: handle pdev_chan_info wmi eventRajkumar Manoharan
Add handler to process bss channel information wmi event that will be received upon sending pdev_chan_info_request wmi command. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06ath10k: implement wmi_pdev_bss_chan_info_requestRajkumar Manoharan
Add WMI ops to send pdev_bss_chan_info_request command to target. This command will be used to retrieve updated cycle counters and noise floor value of current operating channel (bss channel). Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06ath10k: add pdev bss channel info wmi definitionsRajkumar Manoharan
Add WMI definitions for pdev bss channel information request and event. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06ath10k: fix kernel panic, move arvifs list head init before htt initAnilkumar Kolli
It is observed that while loading and unloading ath10k modules in an infinite loop, before ath10k_core_start() completion HTT rx frames are received, while processing these frames, dereferencing the arvifs list code is getting hit before initilizing the arvifs list, causing a kernel panic. This patch initilizes the arvifs list before initilizing htt. Fixes the below issue: [<bf88b058>] (ath10k_htt_rx_pktlog_completion_handler+0x278/0xd08 [ath10k_core]) [<bf88b058>] (ath10k_htt_rx_pktlog_completion_handler [ath10k_core]) [<bf88c0dc>] (ath10k_htt_txrx_compl_task+0x5f4/0xeb0 [ath10k_core]) [<bf88c0dc>] (ath10k_htt_txrx_compl_task [ath10k_core]) [<c0234100>] (tasklet_action+0x8c/0xec) [<c0234100>] (tasklet_action) [<c02337c0>] (__do_softirq+0xf8/0x228) [<c02337c0>] (__do_softirq) [<c0233920>] (run_ksoftirqd+0x30/0x90) Code: e5954ad8 e2899008 e1540009 0a00000d (e5943008) ---[ end trace 71de5c2e011dbf56 ]--- Kernel panic - not syncing: Fatal exception in interrupt Fixes: 500ff9f9389d ("ath10k: implement chanctx API") Cc: <stable@vger.kernel.org> Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
generated by cgit (git 2.34.1) at 2025-09-20 17:00:03 +0000