diff options
| author | Shannon Nelson <shannon.nelson@amd.com> | 2025-03-20 22:44:10 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2025-03-22 02:57:55 +0300 |
| commit | 4d09dd11d7d0e7e7f535c0abc7de19b9da6612e9 (patch) | |
| tree | ac2f610383c410ab5726b6db7ceba77c664450e5 /include/linux | |
| parent | 7e9dd0d1e9c50cedef403d4bef6a2c1dc22ac79d (diff) | |
| download | linux-4d09dd11d7d0e7e7f535c0abc7de19b9da6612e9.tar.xz | |
pds_fwctl: initial driver framework
Initial files for adding a new fwctl driver for the AMD/Pensando PDS
devices. This sets up a simple auxiliary_bus driver that registers
with fwctl subsystem. It expects that a pds_core device has set up
the auxiliary_device pds_core.fwctl
Link: https://patch.msgid.link/r/20250320194412.67983-5-shannon.nelson@amd.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pds/pds_adminq.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/include/linux/pds/pds_adminq.h b/include/linux/pds/pds_adminq.h index 4b4e9a98b37b..22c6d77b3dcb 100644 --- a/include/linux/pds/pds_adminq.h +++ b/include/linux/pds/pds_adminq.h @@ -1179,6 +1179,84 @@ struct pds_lm_host_vf_status_cmd { u8 status; }; +enum pds_fwctl_cmd_opcode { + PDS_FWCTL_CMD_IDENT = 70, +}; + +/** + * struct pds_fwctl_cmd - Firmware control command structure + * @opcode: Opcode + * @rsvd: Reserved + * @ep: Endpoint identifier + * @op: Operation identifier + */ +struct pds_fwctl_cmd { + u8 opcode; + u8 rsvd[3]; + __le32 ep; + __le32 op; +} __packed; + +/** + * struct pds_fwctl_comp - Firmware control completion structure + * @status: Status of the firmware control operation + * @rsvd: Reserved + * @comp_index: Completion index in little-endian format + * @rsvd2: Reserved + * @color: Color bit indicating the state of the completion + */ +struct pds_fwctl_comp { + u8 status; + u8 rsvd; + __le16 comp_index; + u8 rsvd2[11]; + u8 color; +} __packed; + +/** + * struct pds_fwctl_ident_cmd - Firmware control identification command structure + * @opcode: Operation code for the command + * @rsvd: Reserved + * @version: Interface version + * @rsvd2: Reserved + * @len: Length of the identification data + * @ident_pa: Physical address of the identification data + */ +struct pds_fwctl_ident_cmd { + u8 opcode; + u8 rsvd; + u8 version; + u8 rsvd2; + __le32 len; + __le64 ident_pa; +} __packed; + +/* future feature bits here + * enum pds_fwctl_features { + * }; + * (compilers don't like empty enums) + */ + +/** + * struct pds_fwctl_ident - Firmware control identification structure + * @features: Supported features (enum pds_fwctl_features) + * @version: Interface version + * @rsvd: Reserved + * @max_req_sz: Maximum request size + * @max_resp_sz: Maximum response size + * @max_req_sg_elems: Maximum number of request SGs + * @max_resp_sg_elems: Maximum number of response SGs + */ +struct pds_fwctl_ident { + __le64 features; + u8 version; + u8 rsvd[3]; + __le32 max_req_sz; + __le32 max_resp_sz; + u8 max_req_sg_elems; + u8 max_resp_sg_elems; +} __packed; + union pds_core_adminq_cmd { u8 opcode; u8 bytes[64]; @@ -1216,6 +1294,9 @@ union pds_core_adminq_cmd { struct pds_lm_dirty_enable_cmd lm_dirty_enable; struct pds_lm_dirty_disable_cmd lm_dirty_disable; struct pds_lm_dirty_seq_ack_cmd lm_dirty_seq_ack; + + struct pds_fwctl_cmd fwctl; + struct pds_fwctl_ident_cmd fwctl_ident; }; union pds_core_adminq_comp { @@ -1243,6 +1324,8 @@ union pds_core_adminq_comp { struct pds_lm_state_size_comp lm_state_size; struct pds_lm_dirty_status_comp lm_dirty_status; + + struct pds_fwctl_comp fwctl; }; #ifndef __CHECKER__ |