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| author | Shiju Jose <shiju.jose@huawei.com> | 2025-02-20 12:42:43 -0700 |
|---|---|---|
| committer | Dave Jiang <dave.jiang@intel.com> | 2025-02-26 08:51:32 -0700 |
| commit | 14d502cc2718e6af44b575c95670292689a3ad65 (patch) | |
| tree | 622bd2f40cd4a66dba3af8e426057a0db64ae7af /include/cxl | |
| parent | 5e5ac21f629de796ab5d598b59c5e468c6fe4f95 (diff) | |
| download | linux-14d502cc2718e6af44b575c95670292689a3ad65.tar.gz linux-14d502cc2718e6af44b575c95670292689a3ad65.tar.bz2 linux-14d502cc2718e6af44b575c95670292689a3ad65.zip | |
cxl/mbox: Add SET_FEATURE mailbox command
Add support for SET_FEATURE mailbox command.
CXL spec r3.2 section 8.2.9.6 describes optional device specific features.
CXL devices supports features with changeable attributes.
The settings of a feature can be optionally modified using Set Feature
command.
CXL spec r3.2 section 8.2.9.6.3 describes Set Feature command.
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: Shiju Jose <shiju.jose@huawei.com>
Link: https://patch.msgid.link/20250220194438.2281088-6-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Diffstat (limited to 'include/cxl')
| -rw-r--r-- | include/cxl/features.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/cxl/features.h b/include/cxl/features.h index 766c09978e5e..ae56ef7ec9ab 100644 --- a/include/cxl/features.h +++ b/include/cxl/features.h @@ -90,6 +90,39 @@ enum cxl_get_feat_selection { CXL_GET_FEAT_SEL_MAX }; +/* + * Set Feature CXL spec r3.2 8.2.9.6.3 + */ + +/* + * Set Feature input payload + * CXL spec r3.2 section 8.2.9.6.3 Table 8-101 + */ +struct cxl_mbox_set_feat_in { + __struct_group(cxl_mbox_set_feat_hdr, hdr, /* no attrs */, + uuid_t uuid; + __le32 flags; + __le16 offset; + u8 version; + u8 rsvd[9]; + ); + __u8 feat_data[]; +} __packed; + +/* Set Feature flags field */ +enum cxl_set_feat_flag_data_transfer { + CXL_SET_FEAT_FLAG_FULL_DATA_TRANSFER = 0, + CXL_SET_FEAT_FLAG_INITIATE_DATA_TRANSFER, + CXL_SET_FEAT_FLAG_CONTINUE_DATA_TRANSFER, + CXL_SET_FEAT_FLAG_FINISH_DATA_TRANSFER, + CXL_SET_FEAT_FLAG_ABORT_DATA_TRANSFER, + CXL_SET_FEAT_FLAG_DATA_TRANSFER_MAX +}; + +#define CXL_SET_FEAT_FLAG_DATA_TRANSFER_MASK GENMASK(2, 0) + +#define CXL_SET_FEAT_FLAG_DATA_SAVED_ACROSS_RESET BIT(3) + /** * struct cxl_features_state - The Features state for the device * @cxlds: Pointer to CXL device state |