| Message ID | 20231121101844.1161-2-shiju.jose@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | cxl: Add support for CXL feature commands, CXL device patrol scrub control and DDR5 ECS control features | expand |
Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.7-rc2 next-20231121] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/shiju-jose-huawei-com/cxl-mbox-Add-GET_SUPPORTED_FEATURES-mailbox-command/20231121-182247 base: linus/master patch link: https://lore.kernel.org/r/20231121101844.1161-2-shiju.jose%40huawei.com patch subject: [PATCH v2 01/10] cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command config: arc-randconfig-r113-20231122 (https://download.01.org/0day-ci/archive/20231122/202311220525.o2AUzf97-lkp@intel.com/config) compiler: arceb-elf-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231122/202311220525.o2AUzf97-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202311220525.o2AUzf97-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/cxl/core/mbox.c:1318:31: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] size_out @@ got restricted __le32 [usertype] count @@ drivers/cxl/core/mbox.c:1318:31: sparse: expected unsigned int [usertype] size_out drivers/cxl/core/mbox.c:1318:31: sparse: got restricted __le32 [usertype] count vim +1318 drivers/cxl/core/mbox.c 1306 1307 int cxl_get_supported_features(struct cxl_memdev_state *mds, 1308 struct cxl_mbox_get_supp_feats_in *pi, 1309 void *feats_out) 1310 { 1311 struct cxl_mbox_cmd mbox_cmd; 1312 int rc; 1313 1314 mbox_cmd = (struct cxl_mbox_cmd) { 1315 .opcode = CXL_MBOX_OP_GET_SUPPORTED_FEATURES, 1316 .size_in = sizeof(*pi), 1317 .payload_in = pi, > 1318 .size_out = pi->count, 1319 .payload_out = feats_out, 1320 .min_out = sizeof(struct cxl_mbox_get_supp_feats_out), 1321 }; 1322 rc = cxl_internal_send_cmd(mds, &mbox_cmd); 1323 if (rc < 0) 1324 return rc; 1325 1326 return 0; 1327 } 1328 EXPORT_SYMBOL_NS_GPL(cxl_get_supported_features, CXL); 1329
Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.7-rc2 next-20231121] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/shiju-jose-huawei-com/cxl-mbox-Add-GET_SUPPORTED_FEATURES-mailbox-command/20231121-182247 base: linus/master patch link: https://lore.kernel.org/r/20231121101844.1161-2-shiju.jose%40huawei.com patch subject: [PATCH v2 01/10] cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command config: alpha-randconfig-r112-20231122 (https://download.01.org/0day-ci/archive/20231122/202311220753.mm74Rat7-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231122/202311220753.mm74Rat7-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202311220753.mm74Rat7-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/cxl/core/mbox.c:1318:31: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long [usertype] size_out @@ got restricted __le32 [usertype] count @@ drivers/cxl/core/mbox.c:1318:31: sparse: expected unsigned long [usertype] size_out drivers/cxl/core/mbox.c:1318:31: sparse: got restricted __le32 [usertype] count vim +1318 drivers/cxl/core/mbox.c 1306 1307 int cxl_get_supported_features(struct cxl_memdev_state *mds, 1308 struct cxl_mbox_get_supp_feats_in *pi, 1309 void *feats_out) 1310 { 1311 struct cxl_mbox_cmd mbox_cmd; 1312 int rc; 1313 1314 mbox_cmd = (struct cxl_mbox_cmd) { 1315 .opcode = CXL_MBOX_OP_GET_SUPPORTED_FEATURES, 1316 .size_in = sizeof(*pi), 1317 .payload_in = pi, > 1318 .size_out = pi->count, 1319 .payload_out = feats_out, 1320 .min_out = sizeof(struct cxl_mbox_get_supp_feats_out), 1321 }; 1322 rc = cxl_internal_send_cmd(mds, &mbox_cmd); 1323 if (rc < 0) 1324 return rc; 1325 1326 return 0; 1327 } 1328 EXPORT_SYMBOL_NS_GPL(cxl_get_supported_features, CXL); 1329
diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 36270dcfb42e..06ec9ef50e7f 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -63,6 +63,7 @@ static struct cxl_mem_command cxl_mem_commands[CXL_MEM_COMMAND_ID_MAX] = { CXL_CMD(GET_SHUTDOWN_STATE, 0, 0x1, 0), CXL_CMD(SET_SHUTDOWN_STATE, 0x1, 0, 0), CXL_CMD(GET_SCAN_MEDIA_CAPS, 0x10, 0x4, 0), + CXL_CMD(GET_SUPPORTED_FEATURES, 0x8, CXL_VARIABLE_PAYLOAD, 0), }; /* @@ -1303,6 +1304,29 @@ int cxl_set_timestamp(struct cxl_memdev_state *mds) } EXPORT_SYMBOL_NS_GPL(cxl_set_timestamp, CXL); +int cxl_get_supported_features(struct cxl_memdev_state *mds, + struct cxl_mbox_get_supp_feats_in *pi, + void *feats_out) +{ + struct cxl_mbox_cmd mbox_cmd; + int rc; + + mbox_cmd = (struct cxl_mbox_cmd) { + .opcode = CXL_MBOX_OP_GET_SUPPORTED_FEATURES, + .size_in = sizeof(*pi), + .payload_in = pi, + .size_out = pi->count, + .payload_out = feats_out, + .min_out = sizeof(struct cxl_mbox_get_supp_feats_out), + }; + rc = cxl_internal_send_cmd(mds, &mbox_cmd); + if (rc < 0) + return rc; + + return 0; +} +EXPORT_SYMBOL_NS_GPL(cxl_get_supported_features, CXL); + int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len, struct cxl_region *cxlr) { diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index a2fcbca253f3..d831dad748f5 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -506,6 +506,7 @@ enum cxl_opcode { CXL_MBOX_OP_SET_TIMESTAMP = 0x0301, CXL_MBOX_OP_GET_SUPPORTED_LOGS = 0x0400, CXL_MBOX_OP_GET_LOG = 0x0401, + CXL_MBOX_OP_GET_SUPPORTED_FEATURES = 0x0500, CXL_MBOX_OP_IDENTIFY = 0x4000, CXL_MBOX_OP_GET_PARTITION_INFO = 0x4100, CXL_MBOX_OP_SET_PARTITION_INFO = 0x4101, @@ -740,6 +741,61 @@ struct cxl_mbox_set_timestamp_in { } __packed; +/* Get Supported Features CXL 3.0 Spec 8.2.9.6.1 */ +/* + * Get Supported Features input payload + * CXL rev 3.0 section 8.2.9.6.1; Table 8-75 + */ +struct cxl_mbox_get_supp_feats_in { + __le32 count; + __le16 start_index; + u16 reserved; +} __packed; + +/* + * Get Supported Features Supported Feature Entry + * CXL rev 3.0 section 8.2.9.6.1; Table 8-77 + */ +/* Supported Feature Entry : Payload out attribute flags */ +#define CXL_FEAT_ENTRY_FLAG_CHANGABLE BIT(0) +#define CXL_FEAT_ENTRY_FLAG_DEEPEST_RESET_PERSISTENCE_MASK GENMASK(3, 1) + +enum cxl_feat_attrib_value_persistence { + CXL_FEAT_ATTRIB_VALUE_PERSISTENCE_NONE = 0x0, + CXL_FEAT_ATTRIB_VALUE_PERSISTENCE_CXL_RESET = 0x1, + CXL_FEAT_ATTRIB_VALUE_PERSISTENCE_HOT_RESET = 0x2, + CXL_FEAT_ATTRIB_VALUE_PERSISTENCE_WARM_RESET = 0x3, + CXL_FEAT_ATTRIB_VALUE_PERSISTENCE_COLD_RESET = 0x4, + CXL_FEAT_ATTRIB_VALUE_PERSISTENCE_MAX +}; + +#define CXL_FEAT_ENTRY_FLAG_PERSISTENCE_ACROSS_FW_UPDATE_MASK BIT(4) +#define CXL_FEAT_ENTRY_FLAG_PERSISTENCE_DEFAULT_SEL_SUPPORT_MASK BIT(5) +#define CXL_FEAT_ENTRY_FLAG_PERSISTENCE_SAVED_SEL_SUPPORT_MASK BIT(6) + +struct cxl_mbox_supp_feat_entry { + uuid_t uuid; + __le16 feat_index; + __le16 get_feat_size; + __le16 set_feat_size; + __le32 attrb_flags; + u8 get_feat_version; + u8 set_feat_version; + __le16 set_feat_effects; + u8 rsvd[18]; +} __packed; + +/* + * Get Supported Features output payload + * CXL rev 3.0 section 8.2.9.6.1; Table 8-76 + */ +struct cxl_mbox_get_supp_feats_out { + __le16 entries; + __le16 nsuppfeats_dev; + u32 reserved; + struct cxl_mbox_supp_feat_entry feat_entries[]; +} __packed; + /* Get Poison List CXL 3.0 Spec 8.2.9.8.4.1 */ struct cxl_mbox_poison_in { __le64 offset; @@ -867,6 +923,9 @@ void clear_exclusive_cxl_commands(struct cxl_memdev_state *mds, unsigned long *cmds); void cxl_mem_get_event_records(struct cxl_memdev_state *mds, u32 status); int cxl_set_timestamp(struct cxl_memdev_state *mds); +int cxl_get_supported_features(struct cxl_memdev_state *mds, + struct cxl_mbox_get_supp_feats_in *pi, + void *feats_out); int cxl_poison_state_init(struct cxl_memdev_state *mds); int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len, struct cxl_region *cxlr); diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index 14bc6e742148..656450274001 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -46,6 +46,7 @@ ___C(GET_SCAN_MEDIA_CAPS, "Get Scan Media Capabilities"), \ ___DEPRECATED(SCAN_MEDIA, "Scan Media"), \ ___DEPRECATED(GET_SCAN_MEDIA, "Get Scan Media Results"), \ + ___C(GET_SUPPORTED_FEATURES, "Get Supported Features"), \ ___C(MAX, "invalid / last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a