From c2239a251d2d738f435c46bae7d66899c62ce493 Mon Sep 17 00:00:00 2001 From: farah kassabri Date: Wed, 16 Nov 2022 15:40:30 +0200 Subject: habanalabs: pass-through request from user to f/w Add a uAPI, as part of the INFO IOCTL, to allow users to send requests directly to f/w, according to a pre-defined set of opcodes that the f/w exposes. The f/w will put the result in a kernel-allocated buffer, which the driver will then copy to the user-supplied buffer. This will allow f/w tools to communicate directly with the f/w without the need to add a new uAPI to the driver for each new type of request. Signed-off-by: farah kassabri Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/uapi/misc') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index c67d18901c1d..90e628779264 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -789,6 +789,7 @@ enum hl_server_type { * HL_INFO_ENGINE_STATUS - Retrieve the status of all the h/w engines in the asic. * HL_INFO_PAGE_FAULT_EVENT - Retrieve parameters of captured page fault. * HL_INFO_USER_MAPPINGS - Retrieve user mappings, captured after page fault event. + * HL_INFO_FW_GENERIC_REQ - Send generic request to FW. */ #define HL_INFO_HW_IP_INFO 0 #define HL_INFO_HW_EVENTS 1 @@ -822,6 +823,7 @@ enum hl_server_type { #define HL_INFO_ENGINE_STATUS 32 #define HL_INFO_PAGE_FAULT_EVENT 33 #define HL_INFO_USER_MAPPINGS 34 +#define HL_INFO_FW_GENERIC_REQ 35 #define HL_INFO_VERSION_MAX_LEN 128 #define HL_INFO_CARD_NAME_MAX_LEN 16 @@ -1258,6 +1260,7 @@ enum gaudi_dcores { * @sec_attest_nonce: Nonce number used for attestation report. * @array_size: Number of array members copied to user buffer. * Relevant for HL_INFO_USER_MAPPINGS info ioctl. + * @fw_sub_opcode: generic requests sub opcodes. * @pad: Padding to 64 bit. */ struct hl_info_args { @@ -1274,6 +1277,7 @@ struct hl_info_args { __u32 user_buffer_actual_size; __u32 sec_attest_nonce; __u32 array_size; + __u32 fw_sub_opcode; }; __u32 pad; -- cgit v1.2.3