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eb5dfcb9e3
Add helper function to parse the user data from fwctl RPC ioctl and send the parsed input parameters to cxl_set_feature() call. Link: https://patch.msgid.link/r/20250307205648.1021626-6-dave.jiang@intel.com Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Li Ming <ming.li@zohomail.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (c) 2024-2025 Intel Corporation
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*
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* These are definitions for the mailbox command interface of CXL subsystem.
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*/
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#ifndef _UAPI_FWCTL_CXL_H_
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#define _UAPI_FWCTL_CXL_H_
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#include <linux/types.h>
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#include <linux/stddef.h>
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#include <cxl/features.h>
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/**
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* struct fwctl_rpc_cxl - ioctl(FWCTL_RPC) input for CXL
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* @opcode: CXL mailbox command opcode
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* @flags: Flags for the command (input).
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* @op_size: Size of input payload.
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* @reserved1: Reserved. Must be 0s.
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* @get_sup_feats_in: Get Supported Features input
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* @get_feat_in: Get Feature input
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* @set_feat_in: Set Feature input
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*/
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struct fwctl_rpc_cxl {
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__struct_group(fwctl_rpc_cxl_hdr, hdr, /* no attrs */,
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__u32 opcode;
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__u32 flags;
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__u32 op_size;
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__u32 reserved1;
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);
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union {
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struct cxl_mbox_get_sup_feats_in get_sup_feats_in;
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struct cxl_mbox_get_feat_in get_feat_in;
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struct cxl_mbox_set_feat_in set_feat_in;
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};
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};
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/**
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* struct fwctl_rpc_cxl_out - ioctl(FWCTL_RPC) output for CXL
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* @size: Size of the output payload
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* @retval: Return value from device
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* @get_sup_feats_out: Get Supported Features output
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* @payload: raw byte stream of payload
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*/
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struct fwctl_rpc_cxl_out {
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__struct_group(fwctl_rpc_cxl_out_hdr, hdr, /* no attrs */,
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__u32 size;
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__u32 retval;
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);
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union {
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struct cxl_mbox_get_sup_feats_out get_sup_feats_out;
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__DECLARE_FLEX_ARRAY(__u8, payload);
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};
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};
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#endif
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