diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2025-03-07 13:55:31 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2025-03-17 14:41:36 -0300 |
| commit | 858ce2f56b5253063f61f6b1c58a6dbf5d71da0b (patch) | |
| tree | da88bcfb46f33a7e2f53a72dc7dd0800e89f9d7c /include | |
| parent | 15a26c223fff58d9fa4ada12a8c35697f8ecdf6c (diff) | |
cxl: Add FWCTL support to CXL
Add fwctl support code to allow sending of CXL feature commands from
userspace through as ioctls via FWCTL. Provide initial setup bits. The
CXL PCI probe function will call devm_cxl_setup_fwctl() after the
cxl_memdev has been enumerated in order to setup FWCTL char device under
the cxl_memdev like the existing memdev char device for issuing CXL raw
mailbox commands from userspace via ioctls.
Link: https://patch.msgid.link/r/20250307205648.1021626-2-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Li Ming <ming.li@zohomail.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/cxl/features.h | 8 | ||||
| -rw-r--r-- | include/uapi/fwctl/fwctl.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/cxl/features.h b/include/cxl/features.h index d2cde46b0fec..596c85ee2699 100644 --- a/include/cxl/features.h +++ b/include/cxl/features.h @@ -4,6 +4,7 @@ #define __CXL_FEATURES_H__ #include <linux/uuid.h> +#include <linux/fwctl.h> /* Feature UUIDs used by the kernel */ #define CXL_FEAT_PATROL_SCRUB_UUID \ @@ -173,9 +174,11 @@ struct cxl_features_state { }; struct cxl_mailbox; +struct cxl_memdev; #ifdef CONFIG_CXL_FEATURES inline struct cxl_features_state *to_cxlfs(struct cxl_dev_state *cxlds); int devm_cxl_setup_features(struct cxl_dev_state *cxlds); +int devm_cxl_setup_fwctl(struct cxl_memdev *cxlmd); #else static inline struct cxl_features_state *to_cxlfs(struct cxl_dev_state *cxlds) { @@ -186,6 +189,11 @@ static inline int devm_cxl_setup_features(struct cxl_dev_state *cxlds) { return -EOPNOTSUPP; } + +static inline int devm_cxl_setup_fwctl(struct cxl_memdev *cxlmd) +{ + return -EOPNOTSUPP; +} #endif #endif diff --git a/include/uapi/fwctl/fwctl.h b/include/uapi/fwctl/fwctl.h index 584a5ea8ecee..c2d5abc5a726 100644 --- a/include/uapi/fwctl/fwctl.h +++ b/include/uapi/fwctl/fwctl.h @@ -43,6 +43,7 @@ enum { enum fwctl_device_type { FWCTL_DEVICE_TYPE_ERROR = 0, FWCTL_DEVICE_TYPE_MLX5 = 1, + FWCTL_DEVICE_TYPE_CXL = 2, }; /** |