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pldmfw: enable selected component update

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This patch enables to update a selected component from PLDM image
containing multiple components.

Example usage:

struct pldmfw;
data.mode = PLDMFW_UPDATE_MODE_SINGLE_COMPONENT;
data.compontent_identifier = DRIVER_FW_MGMT_COMPONENT_ID;

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Konrad Knitter <konrad.knitter@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Konrad Knitter 2024-11-06 10:36:41 +01:00 committed by Tony Nguyen
parent b44e27b4df
commit d4679b79ff
2 changed files with 16 additions and 0 deletions
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8
include/linux/pldmfw.h
View File

@ -125,9 +125,17 @@ struct pldmfw_ops;
* a pointer to their own data, used to implement the device specific
* operations.
*/
enum pldmfw_update_mode {
PLDMFW_UPDATE_MODE_FULL,
PLDMFW_UPDATE_MODE_SINGLE_COMPONENT,
};
struct pldmfw {
const struct pldmfw_ops *ops;
struct device *dev;
u16 component_identifier;
enum pldmfw_update_mode mode;
};
bool pldmfw_op_pci_match_record(struct pldmfw *context, struct pldmfw_record *record);

8
lib/pldmfw/pldmfw.c
View File

@ -481,9 +481,17 @@ static int pldm_parse_components(struct pldmfw_priv *data)
component->component_data = data->fw->data + offset;
component->component_size = size;
if (data->context->mode == PLDMFW_UPDATE_MODE_SINGLE_COMPONENT &&
data->context->component_identifier != component->identifier)
continue;
list_add_tail(&component->entry, &data->components);
}
if (data->context->mode == PLDMFW_UPDATE_MODE_SINGLE_COMPONENT &&
list_empty(&data->components))
return -ENOENT;
header_crc_ptr = data->fw->data + data->offset;
err = pldm_move_fw_offset(data, sizeof(data->header_crc));