linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2020-02-03	dmaengine: idxd: fix boolconv.cocci warnings	kbuild test robot	1	-1/+1
	Remove unneeded conversion to bool Generated by: scripts/coccinelle/misc/boolconv.cocci CC: Dave Jiang <dave.jiang@intel.com> Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Julia Lawall <julia.lawall@inria.fr> Acked-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2001301543150.7476@hadrien Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-01-24	dmaengine: idxd: add char driver to expose submission portal to userland	Dave Jiang	1	-2/+50
	Create a char device region that will allow acquisition of user portals in order to allow applications to submit DMA operations. A char device will be created per work queue that gets exposed. The workqueue type "user" is used to mark a work queue for user char device. For example if the workqueue 0 of DSA device 0 is marked for char device, then a device node of /dev/dsa/wq0.0 will be created. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/157965026985.73301.976523230037106742.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-01-24	dmaengine: idxd: connect idxd to dmaengine subsystem	Dave Jiang	1	-0/+28
	Add plumbing for dmaengine subsystem connection. The driver register a DMA device per DSA device. The channels are dynamically registered when a workqueue is configured to be "kernel:dmanegine" type. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/157965026376.73301.13867988830650740445.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-01-24	dmaengine: idxd: add configuration component of driver	Dave Jiang	1	-0/+1452
	The device is left unconfigured when the driver is loaded. Various components are configured via the driver sysfs attributes. Once configuration is done, the device can be enabled by writing the device name to the bind attribute of the device driver sysfs. Disabling can be done similarly. Also the individual work queues can also be enabled and disabled through the bind/unbind attributes. A constructed hierarchy is created through the struct device framework in order to provide appropriate configuration points and device state and status. This hierarchy is presented off the virtual DSA bus. i.e. /sys/bus/dsa/... Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/157965024585.73301.6431413676230150589.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>