[Skiboot] [PATCH V3 06/21] core/pldm: Encode GetPLDMTypes response
Christophe Lombard
clombard at linux.vnet.ibm.com
Sat Mar 19 01:36:04 AEDT 2022
The GetPLDMTypes command can be used to discover the PLDM type capabilities
supported by a PLDM terminus and to get a list of the PLDM types that are
supported.
Reviewed-by: Abhishek Singh Tomar <abhishek at linux.ibm.com>
Signed-off-by: Christophe Lombard <clombard at linux.vnet.ibm.com>
---
core/pldm/pldm-responder.c | 39 ++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/core/pldm/pldm-responder.c b/core/pldm/pldm-responder.c
index 834b8ebf..01a4b1ef 100644
--- a/core/pldm/pldm-responder.c
+++ b/core/pldm/pldm-responder.c
@@ -125,6 +125,44 @@ static struct pldm_cmd base_get_tid = {
.handler = get_tid_handler,
};
+/*
+ * GetPLDMTypes (0x04)
+ * The GetPLDMTypes command can be used to discover the PLDM type
+ * capabilities supported by a PLDM terminus and to get a list of the
+ * PLDM types that are supported.
+ */
+static int get_types_handler(const struct pldm_rx_data *req)
+{
+ char resp_buf[PKT_SIZE(struct pldm_get_types_resp)];
+ bitmap_elem_t type_map[BITMAP_ELEMS(32)];
+ struct pldm_type *iter;
+
+ /*
+ * build the supported type list from the registered type
+ * handlers
+ */
+ memset(type_map, 0, sizeof(type_map));
+ list_for_each(&pldm_type_list, iter, link)
+ bitmap_set_bit(type_map, iter->pldm_type_id);
+
+ for (int i = 0; i < BITMAP_ELEMS(32); i++)
+ type_map[i] = cpu_to_le64(type_map[i]);
+
+ memset(resp_buf, 0, sizeof(resp_buf));
+ encode_get_types_resp(req->hdrinf.instance,
+ PLDM_SUCCESS,
+ (bitfield8_t *)type_map,
+ (void *) resp_buf);
+ pldm_send(req->source_eid, resp_buf, sizeof(resp_buf));
+
+ return OPAL_SUCCESS;
+}
+static struct pldm_cmd base_get_types = {
+ .name = "GetPLDMTypes",
+ .pldm_cmd_id = PLDM_GET_PLDM_TYPES,
+ .handler = get_types_handler,
+};
+
int pldm_rx_handle_request(struct pldm_rx_data *rx)
{
const struct pldm_type *t;
@@ -151,6 +189,7 @@ int pldm_mctp_responder_init(void)
pldm_add_type(&pldm_base_type);
pldm_add_cmd(&pldm_base_type, &base_get_tid);
+ pldm_add_cmd(&pldm_base_type, &base_get_types);
return OPAL_SUCCESS;
}
--
2.35.1
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