diff options
Diffstat (limited to 'include/uapi/linux/fpga-dfl.h')
| -rw-r--r-- | include/uapi/linux/fpga-dfl.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/uapi/linux/fpga-dfl.h b/include/uapi/linux/fpga-dfl.h index 9666af85a8f5..e6b4dd26cc68 100644 --- a/include/uapi/linux/fpga-dfl.h +++ b/include/uapi/linux/fpga-dfl.h @@ -29,8 +29,11 @@ #define DFL_FPGA_MAGIC 0xB6 #define DFL_FPGA_BASE 0 +#define DFL_PORT_BASE 0x40 #define DFL_FME_BASE 0x80 +/* Common IOCTLs for both FME and AFU file descriptor */ + /** * DFL_FPGA_GET_API_VERSION - _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 0) * @@ -49,6 +52,20 @@ #define DFL_FPGA_CHECK_EXTENSION _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 1) +/* IOCTLs for AFU file descriptor */ + +/** + * DFL_FPGA_PORT_RESET - _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 0) + * + * Reset the FPGA Port and its AFU. No parameters are supported. + * Userspace can do Port reset at any time, e.g. during DMA or PR. But + * it should never cause any system level issue, only functional failure + * (e.g. DMA or PR operation failure) and be recoverable from the failure. + * Return: 0 on success, -errno of failure + */ + +#define DFL_FPGA_PORT_RESET _IO(DFL_FPGA_MAGIC, DFL_PORT_BASE + 0) + /* IOCTLs for FME file descriptor */ /** |