On Thu, Feb 02, 2017 at 11:06:00AM -0700, Logan Gunthorpe wrote: > Microsemi's "Switchtec" line of PCI switch devices is already well > supported by the kernel with standard PCI switch drivers. However, the > Switchtec device advertises a special management endpoint with a separate > PCI function address and class code. This endpoint enables some additional > functionality which includes: > > * Packet and Byte Counters > * Switch 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. > > A userspace tool and library which utilizes this interface is available > at [1]. This tool takes inspiration (and borrows some code) from > nvme-cli [2]. The tool is largely complete at this time but additional > features may be added in the future. > > [1] https://github.com/sbates130272/switchtec-user > [2] https://github.com/linux-nvme/nvme-cli > > Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> > Signed-off-by: Stephen Bates <stephen.bates@xxxxxxxxxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
