Block standby

casadm/argp.c

@@ -1,5 +1,6 @@
 /*
 * Copyright(c) 2012-2021 Intel Corporation
+* Copyright(c) 2024 Huawei Technologies
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
@@ -26,6 +27,11 @@ static int is_command_hidden(const cli_command* commands, int cmd)
 	return commands[cmd].flags & CLI_COMMAND_HIDDEN;
 }
 
+static int is_command_blocked(const cli_command* commands, int cmd)
+{
+	return commands[cmd].flags & CLI_COMMAND_BLOCKED;
+}
+
 static void print_short_usage(const app *app_values)
 {
 	cas_printf(LOG_INFO, "Usage: %s %s\n", app_values->name, app_values->info);
@@ -313,8 +319,10 @@ void print_help(const app *app_values, const cli_command *commands)
 			break;
 		}
 
-		if (is_command_hidden(commands, i))
+		if (is_command_hidden(commands, i) ||
+				is_command_blocked(commands, i)) {
 			continue;
+		}
 
 		get_short_name_string(commands[i].short_name, short_name);
 
@@ -614,6 +622,11 @@ int args_parse(app *app_values, cli_command *commands, int argc, const char **ar
 		}
 	}
 
+	if (is_command_blocked(commands, i)) {
+		cas_printf(LOG_ERR, "The command is not supported\n");
+		return FAILURE;
+	}
+
 	configure_cli_commands(commands);
 
 	if (argc >= 3 && get_help_position(argc, argv) != -1) {

casadm/argp.h

@@ -1,5 +1,6 @@
 /*
 * Copyright(c) 2012-2021 Intel Corporation
+* Copyright(c) 2024 Huawei Technologies
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
@@ -22,7 +23,8 @@ enum CLI_OPTION_FLAGS {
 
 enum CLI_COMMAND_FLAGS {
 	CLI_SU_REQUIRED			= 1 << 0,
-	CLI_COMMAND_HIDDEN		= 1 << 1
+	CLI_COMMAND_HIDDEN		= 1 << 1,
+	CLI_COMMAND_BLOCKED		= 1 << 2
 };
 
 #define	ERROR		-1

casadm/cas_main.c

@@ -1,5 +1,6 @@
 /*
 * Copyright(c) 2012-2022 Intel Corporation
+* Copyright(c) 2024 Huawei Technologies
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
@@ -2373,7 +2374,7 @@ static cli_command cas_commands[] = {
 			.options = standby_params_options,
 			.command_handle_opts = standby_handle_option,
 			.handle = standby_handle,
-			.flags = CLI_SU_REQUIRED,
+			.flags = (CLI_COMMAND_BLOCKED | CLI_SU_REQUIRED),
 			.help = standby_help,
 		},
 		{

modules/cas_cache/layer_cache_management.c

@@ -1882,6 +1882,15 @@ int cache_mngt_create_cache_cfg(struct ocf_mngt_cache_config *cfg,
 	char cache_name[OCF_CACHE_NAME_SIZE];
 	uint16_t cache_id;
 
+	switch (cmd->init_cache) {
+		case CACHE_INIT_STANDBY_NEW:
+		case CACHE_INIT_STANDBY_LOAD:
+			printk(KERN_ERR "Standby mode is not supported!\n");
+			return -ENOTSUP;
+		default:
+			break;
+	}
+
 	if (!cmd)
 		return -OCF_ERR_INVAL;
 
@@ -2453,6 +2462,15 @@ int cache_mngt_init_instance(struct ocf_mngt_cache_config *cfg,
 	ocf_cache_mode_t cache_mode_meta;
 	ocf_cache_line_size_t cache_line_size_meta;
 
+	switch (cmd->init_cache) {
+		case CACHE_INIT_STANDBY_NEW:
+		case CACHE_INIT_STANDBY_LOAD:
+			printk(KERN_ERR "Standby mode is not supported!\n");
+			return -ENOTSUP;
+		default:
+			break;
+	}
+
 	if (!try_module_get(THIS_MODULE))
 		return -KCAS_ERR_SYSTEM;
 

modules/cas_cache/service_ui_ioctl.c

@@ -1,5 +1,6 @@
 /*
 * Copyright(c) 2012-2022 Intel Corporation
+* Copyright(c) 2024 Huawei Technologies
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
@@ -381,6 +382,8 @@ long cas_service_ioctl_ctrl(struct file *filp, unsigned int cmd,
 	case KCAS_IOCTL_STANDBY_DETACH: {
 		struct kcas_standby_detach *cmd_info;
 
+		return -ENOTSUP;
+
 		GET_CMD_INFO(cmd_info, arg);
 
 		retval = cache_mngt_standby_detach(cmd_info);
@@ -391,6 +394,8 @@ long cas_service_ioctl_ctrl(struct file *filp, unsigned int cmd,
 		struct kcas_standby_activate *cmd_info;
 		struct ocf_mngt_cache_standby_activate_config cfg;
 
+		return -ENOTSUP;
+
 		GET_CMD_INFO(cmd_info, arg);
 
 		retval = cache_mngt_create_cache_standby_activate_cfg(&cfg,

test/functional/api/cas/cli_help_messages.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2020-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -23,7 +24,6 @@
     r"-C  --io-class                 Manage IO classes",
     r"-V  --version                  Print CAS version",
     r"-H  --help                     Print help",
-    r"--standby                  Manage failover standby",
     r"--zero-metadata            Clear metadata from caching device",
     r"For detailed help on the above commands use --help after the command\.",
     r"e\.g\.",
@@ -242,30 +242,7 @@
 ]
 
 standby_help = [
-    r"Usage: casadm --standby \{--init|--load|--detach|--activate\}",
-    r"Manage failover standby",
-    r"Initialize cache in standby mode:",
-    r"Usage: casadm --standby --init --cache-id \<ID\> --cache-line-size \<NUMBER\> "
-    r"--cache-device \<DEVICE\> \[option...\]",
-    r"Options that are valid with --init are:",
-    r"-i  --cache-id \<ID\>                 Identifier of cache instance \<1-16384\>",
-    r"-x  --cache-line-size \<NUMBER\>      Set cache line size in kibibytes: \{4,8,16,32,64\}"
-    r"\[KiB\] \(default: 4\)",
-    r"-d  --cache-device \<DEVICE\>         Caching device to be used",
-    r"-f  --force                         Force the initialization of cache instance",
-    r"Load cache in standby mode:",
-    r"Usage: casadm --standby --load --cache-device \<DEVICE\>",
-    r"Options that are valid with --load are:",
-    r"-d  --cache-device \<DEVICE\>         Caching device to be used",
-    r"Detach cache device in standby mode:",
-    r"Usage: casadm --standby --detach --cache-id \<ID\>",
-    r"Options that are valid with --detach are:",
-    r" -i  --cache-id \<ID\>                 Identifier of cache instance \<1-16384\>",
-    r"Activate standby cache:",
-    r"Usage: casadm --standby --activate --cache-id \<ID\> --cache-device \<DEVICE\>",
-    r"Options that are valid with --activate are:",
-    r"-i  --cache-id \<ID\>                 Identifier of cache instance \<1-16384\>",
-    r"-d  --cache-device \<DEVICE\>         Caching device to be used"
+    r"The command is not supported"
 ]
 
 zero_metadata_help = [

test/functional/tests/cli/test_cli_standby.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -37,6 +38,7 @@
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 def test_standby_neg_cli_params():
     """
@@ -106,6 +108,7 @@ def test_standby_neg_cli_params():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 def test_activate_neg_cli_params():
     """
@@ -186,6 +189,7 @@ def test_activate_neg_cli_params():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 def test_standby_neg_cli_management():
     """
@@ -262,6 +266,7 @@ def test_standby_neg_cli_management():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 def test_start_neg_cli_flags():
     """
@@ -316,6 +321,7 @@ def test_start_neg_cli_flags():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 def test_activate_without_detach():
     """
@@ -379,6 +385,7 @@ def test_activate_without_detach():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("active_cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("standby_cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 def test_activate_neg_cache_line_size():
@@ -470,6 +477,7 @@ def test_activate_neg_cache_line_size():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_standby_init_with_preexisting_metadata():
@@ -528,6 +536,7 @@ def test_standby_init_with_preexisting_metadata():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 @pytest.mark.parametrizex("filesystem", Filesystem)
@@ -579,6 +588,7 @@ def test_standby_init_with_preexisting_filesystem(filesystem):
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("caches", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("caches"))
 def test_standby_activate_with_corepool():
@@ -637,6 +647,7 @@ def test_standby_activate_with_corepool():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
 @pytest.mark.parametrizex("cache_line_size", CacheLineSize)
 def test_standby_start_stop(cache_line_size):

test/functional/tests/failover_standby/test_failover_multihost.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -42,6 +43,7 @@
 test_file_path = f"{mountpoint}/test_file"
 
 
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("metadata_dev", DiskTypeSet([DiskType.nand]))
 @pytest.mark.require_disk("core_dev", DiskTypeSet([DiskType.hdd]))
 @pytest.mark.require_disk("raid_dev1", DiskTypeSet([DiskType.optane]))
@@ -226,6 +228,7 @@ def test_functional_activate_twice_round_trip(filesystem):
     TestRun.LOGGER.end_group()
 
 
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("metadata_dev", DiskTypeSet([DiskType.nand]))
 @pytest.mark.require_disk("core_dev", DiskTypeSet([DiskType.hdd]))
 @pytest.mark.require_disk("raid_dev1", DiskTypeSet([DiskType.optane]))

test/functional/tests/fault_injection/test_fault_injection_standby.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -28,6 +29,7 @@
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_activate_corrupted():
@@ -85,6 +87,7 @@ def test_activate_corrupted():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_load_corrupted():

test/functional/tests/fault_injection/test_fault_injection_standby_core.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -27,6 +28,7 @@
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
 def test_activate_neg_cache_id():
     """
@@ -98,6 +100,7 @@ def test_activate_neg_cache_id():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_activate_incomplete_cache():
@@ -215,6 +218,7 @@ def test_activate_incomplete_cache():
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_activate_neg_core_size():

test/functional/tests/fault_injection/test_standby_activate_different_cache_path.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -19,6 +20,7 @@
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 @pytest.mark.parametrizex("cache_line_size", CacheLineSize)

test/functional/tests/fault_injection/test_standby_activate_the_same_cache_path.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -14,6 +15,7 @@
 
 
 @pytest.mark.CI
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.nand, DiskType.optane]))
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_standby_activate_the_same_cache_path():

test/functional/tests/initialize/test_startup_init_config.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -385,6 +386,7 @@ def test_cas_startup_negative_missing_cache():
 
 
 @pytest.mark.os_dependent
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
 @pytest.mark.require_disk("core", DiskTypeSet([DiskType.hdd]))
 @pytest.mark.require_plugin("power_control")
@@ -490,6 +492,7 @@ def test_failover_config_startup():
 
 
 @pytest.mark.os_dependent
+@pytest.mark.skip(reason="Standby mode is not supported")
 @pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
 def test_failover_config_startup_negative():
     """