summaryrefslogtreecommitdiffstats
path: root/net/dns_resolver
diff options
context:
space:
mode:
authorXu Yilun <yilun.xu@intel.com>2020-06-16 06:08:47 +0200
committerMoritz Fischer <mdf@kernel.org>2020-07-07 06:37:08 +0200
commit09d86150141955ba1b3d7cbef23785f4996e4d6f (patch)
treec901158fb1890d2cd43aa7e49273643f5ae13233 /net/dns_resolver
parentfpga: dfl: fme: add interrupt support for global error reporting (diff)
downloadlinux-09d86150141955ba1b3d7cbef23785f4996e4d6f.tar.xz
linux-09d86150141955ba1b3d7cbef23785f4996e4d6f.zip
fpga: dfl: afu: add AFU interrupt support
AFU (Accelerated Function Unit) is dynamic region of the DFL based FPGA, and always defined by users. Some DFL based FPGA cards allow users to implement their own interrupts in AFU. In order to support this, hardware implements a new UINT (AFU Interrupt) private feature with related capability register which describes the number of supported AFU interrupts as well as the local index of the interrupts for software enumeration, and from software side, driver follows the common DFL interrupt notification and handling mechanism, and it implements two ioctls below for user to query number of irqs supported and set/unset interrupt triggers. Ioctls: * DFL_FPGA_PORT_UINT_GET_IRQ_NUM get the number of irqs, which is used to determine how many interrupts UINT feature supports. * DFL_FPGA_PORT_UINT_SET_IRQ set/unset eventfds as AFU interrupt triggers. Signed-off-by: Luwei Kang <luwei.kang@intel.com> Signed-off-by: Wu Hao <hao.wu@intel.com> Signed-off-by: Xu Yilun <yilun.xu@intel.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Acked-by: Wu Hao <hao.wu@intel.com> Signed-off-by: Moritz Fischer <mdf@kernel.org>
Diffstat (limited to 'net/dns_resolver')
0 files changed, 0 insertions, 0 deletions