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cxl: Add support to handle user feature commands for get feature

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Add helper function to parse the user data from fwctl RPC ioctl and
send the parsed input parameters to cxl_get_feature() call.

Link: https://patch.msgid.link/r/20250307205648.1021626-5-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>
This commit is contained in:
Dave Jiang
2025-03-17 14:41:37 -03:00
committed by Jason Gunthorpe
parent 4d1c09cef2
commit 5908f3ed6d
2 changed files with 54 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/uapi/fwctl/cxl.h
+10 -2
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@@ -18,6 +18,7 @@
* @op_size: Size of input payload.
* @reserved1: Reserved. Must be 0s.
* @get_sup_feats_in: Get Supported Features input
* @get_feat_in: Get Feature input
*/
struct fwctl_rpc_cxl {
__struct_group(fwctl_rpc_cxl_hdr, hdr, /* no attrs */,
@@ -26,7 +27,10 @@ struct fwctl_rpc_cxl {
__u32 op_size;
__u32 reserved1;
);
struct cxl_mbox_get_sup_feats_in get_sup_feats_in;
union {
struct cxl_mbox_get_sup_feats_in get_sup_feats_in;
struct cxl_mbox_get_feat_in get_feat_in;
};
};
/**
@@ -34,13 +38,17 @@ struct fwctl_rpc_cxl {
* @size: Size of the output payload
* @retval: Return value from device
* @get_sup_feats_out: Get Supported Features output
* @payload: raw byte stream of payload
*/
struct fwctl_rpc_cxl_out {
__struct_group(fwctl_rpc_cxl_out_hdr, hdr, /* no attrs */,
__u32 size;
__u32 retval;
);
struct cxl_mbox_get_sup_feats_out get_sup_feats_out;
union {
struct cxl_mbox_get_sup_feats_out get_sup_feats_out;
__DECLARE_FLEX_ARRAY(__u8, payload);
};
};
#endif