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Tue, 20 Jun 2023 15:00:20 +0000 (GMT) From: Christophe Lombard To: skiboot@lists.ozlabs.org Date: Tue, 20 Jun 2023 17:00:08 +0200 Message-ID: <20230620150017.88663-13-clombard@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230620150017.88663-1-clombard@linux.ibm.com> References: <20230620150017.88663-1-clombard@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: PRHY3PsnBK8xV6c4CWsUk2oVR9X0wu_J X-Proofpoint-GUID: PRHY3PsnBK8xV6c4CWsUk2oVR9X0wu_J X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-06-20_10,2023-06-16_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 bulkscore=0 clxscore=1015 suspectscore=0 phishscore=0 malwarescore=0 impostorscore=0 mlxscore=0 mlxlogscore=999 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306200131 Subject: [Skiboot] [PATCH V8 12/21] core/pldm: Send a system firmware Graceful Restart request X-BeenThere: skiboot@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Mailing list for skiboot development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: skiboot-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Skiboot" Set the state information of the PLDM effecter identified by: the entity type (PLDM_ENTITY_SYS_FIRMWARE) and the state set PLDM_STATE_SET_SW_TERMINATION_STATUS with the effecter state: PLDM_SW_TERM_GRACEFUL_RESTART_REQUESTED to request a platform restart. Reviewed-by: Abhishek Singh Tomar Signed-off-by: Christophe Lombard --- core/pldm/pldm-platform-requests.c | 75 ++++++++++++++++++++++++++++++ include/pldm.h | 5 ++ 2 files changed, 80 insertions(+) diff --git a/core/pldm/pldm-platform-requests.c b/core/pldm/pldm-platform-requests.c index 5bbdd012..632f7fe5 100644 --- a/core/pldm/pldm-platform-requests.c +++ b/core/pldm/pldm-platform-requests.c @@ -44,6 +44,49 @@ static void pdr_init_complete(bool success) pdr_ready = true; } +/* + * Search the matching record and return the effecter id. + * PDR type = PLDM_STATE_EFFECTER_PDR + */ +static int find_effecter_id_by_state_set_Id(uint16_t entity_type, + uint16_t state_set_id, + uint16_t *effecter_id) +{ + struct state_effecter_possible_states *possible_states; + struct pldm_state_effecter_pdr *state_effecter_pdr; + const pldm_pdr_record *record = NULL; + uint8_t *outData = NULL; + uint32_t size; + + do { + /* Find (first) PDR record by PLDM_STATE_EFFECTER_PDR type + * if record not NULL, then search will begin from this + * record's next record + */ + record = pldm_pdr_find_record_by_type( + pdrs_repo, /* PDR repo handle */ + PLDM_STATE_EFFECTER_PDR, + record, /* PDR record handle */ + &outData, &size); + + if (record) { + state_effecter_pdr = (struct pldm_state_effecter_pdr *) outData; + + *effecter_id = le16_to_cpu(state_effecter_pdr->effecter_id); + + possible_states = (struct state_effecter_possible_states *) + state_effecter_pdr->possible_states; + + if ((le16_to_cpu(state_effecter_pdr->entity_type) == entity_type) && + (le16_to_cpu(possible_states->state_set_id) == state_set_id)) + return OPAL_SUCCESS; + } + + } while (record); + + return OPAL_PARAMETER; +} + struct set_effecter_state_response { uint8_t completion_code; }; @@ -126,6 +169,38 @@ static int set_state_effecter_states_req(uint16_t effecter_id, return OPAL_SUCCESS; } +/* + * entity_type: System Firmware + * state_set: Software Termination Status(129) + * states: Graceful Restart Requested(6) + */ +int pldm_platform_restart(void) +{ + set_effecter_state_field field; + uint16_t effecter_id; + int rc; + + if (!pdr_ready) + return OPAL_HARDWARE; + + rc = find_effecter_id_by_state_set_Id( + PLDM_ENTITY_SYS_FIRMWARE, + PLDM_STATE_SET_SW_TERMINATION_STATUS, + &effecter_id); + if (rc) { + prlog(PR_ERR, "%s - effecter id not found\n", __func__); + return rc; + } + + field.set_request = PLDM_REQUEST_SET; + field.effecter_state = PLDM_SW_TERM_GRACEFUL_RESTART_REQUESTED; + + prlog(PR_INFO, "sending system firmware Graceful Restart request (effecter_id: %d)\n", + effecter_id); + + return set_state_effecter_states_req(effecter_id, &field, true); +} + struct get_pdr_response { uint8_t completion_code; uint32_t next_record_hndl; diff --git a/include/pldm.h b/include/pldm.h index 617287fe..6d86cd10 100644 --- a/include/pldm.h +++ b/include/pldm.h @@ -21,4 +21,9 @@ int pldm_mctp_init(void); */ void pldm_mctp_exit(void); +/** + * Send a system firmware Graceful Restart request + */ +int pldm_platform_restart(void); + #endif /* __PLDM_H__ */