On Sat, Dec 17, 2016 at 10:09:22AM -0700, Logan Gunthorpe wrote: > Microsemi's "Switchtec" line of PCI switch devices is already > supported by the kernel with standard PCI switch drivers. However, the > Switchtec device advertises a special management endpoint which > enables some additional functionality. This includes: > > * Packet and Byte Counters > * Firmware Upgrades > * Event and Error logs > * Querying port link status > * Custom user firmware commands > > This patch introduces the switchtec kernel module which provides > pci driver that exposes a char device. The char device provides > userspace access to this interface through read, write and (optionally) > poll calls. Currently no ioctls have been implemented but a couple > may be added in a later revision. > > A short text file is provided which documents the switchtec driver > and outlines the semantics of using the char device.
Some of this would be simplified if you use the managed device API's: devm_request_irq, pcim_enable_device, pcim_iomap, etc... -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
