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From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: vishal.l.verma@intel.com
Subject: [ndctl PATCH 20/36] ndctl/namespace: Introduce mode-to-name and name-to-mode helpers
Date: Sat, 29 Feb 2020 12:21:50 -0800	[thread overview]
Message-ID: <158300771041.2141307.11811224712955268465.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <158300760415.2141307.14060353322051900501.stgit@dwillia2-desk3.amr.corp.intel.com>

Before open coding yet another translation between modes and their text
name, introduce a util_nsmode() and util_nsmode_name() helpers.

Consolidate the existing mode_to_type() helper into the new common /
public util.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 ndctl/namespace.c |   39 +++++++--------------------------------
 util/filter.c     |   42 +++++++++++++++++++++++++++---------------
 util/filter.h     |    3 +++
 3 files changed, 37 insertions(+), 47 deletions(-)

diff --git a/ndctl/namespace.c b/ndctl/namespace.c
index 770caa5ebab0..1747a061d5b7 100644
--- a/ndctl/namespace.c
+++ b/ndctl/namespace.c
@@ -214,21 +214,7 @@ static int set_defaults(enum device_action mode)
 		param.type = "pmem";
 
 	if (param.mode) {
-		if (strcmp(param.mode, "safe") == 0)
-			/* pass */;
-		else if (strcmp(param.mode, "sector") == 0)
-		      param.mode = "safe"; /* pass */
-		else if (strcmp(param.mode, "memory") == 0)
-		      /* pass */;
-		else if (strcmp(param.mode, "fsdax") == 0)
-			param.mode = "memory"; /* pass */
-		else if (strcmp(param.mode, "raw") == 0)
-		      /* pass */;
-		else if (strcmp(param.mode, "dax") == 0)
-		      /* pass */;
-		else if (strcmp(param.mode, "devdax") == 0)
-			param.mode = "dax"; /* pass */
-		else {
+		if (util_nsmode(param.mode) == NDCTL_NS_MODE_UNKNOWN) {
 			error("invalid mode '%s'\n", param.mode);
 			rc = -EINVAL;
 		}
@@ -294,7 +280,7 @@ static int set_defaults(enum device_action mode)
 			rc = -EINVAL;
 		}
 	} else if (((param.type && strcmp(param.type, "blk") == 0)
-			|| (param.mode && strcmp(param.mode, "safe") == 0))) {
+			|| util_nsmode(param.mode) == NDCTL_NS_MODE_SECTOR)) {
 		/* default sector size for blk-type or safe-mode */
 		param.sector_size = "4096";
 	}
@@ -585,23 +571,12 @@ static int validate_namespace_options(struct ndctl_region *region,
 	}
 
 	if (param.mode) {
-		if (strcmp(param.mode, "memory") == 0)
-			p->mode = NDCTL_NS_MODE_FSDAX;
-		else if (strcmp(param.mode, "sector") == 0)
-			p->mode = NDCTL_NS_MODE_SECTOR;
-		else if (strcmp(param.mode, "safe") == 0)
-			p->mode = NDCTL_NS_MODE_SECTOR;
-		else if (strcmp(param.mode, "dax") == 0)
-			p->mode = NDCTL_NS_MODE_DEVDAX;
-		else
-			p->mode = NDCTL_NS_MODE_RAW;
-
+		p->mode = util_nsmode(param.mode);
 		if (ndctl_region_get_type(region) != ND_DEVICE_REGION_PMEM
 				&& (p->mode == NDCTL_NS_MODE_FSDAX
 					|| p->mode == NDCTL_NS_MODE_DEVDAX)) {
 			err("blk %s does not support %s mode\n", region_name,
-					p->mode == NDCTL_NS_MODE_FSDAX
-					? "fsdax" : "devdax");
+					util_nsmode_name(p->mode));
 			return -EAGAIN;
 		}
 	} else if (ndns)
@@ -619,7 +594,8 @@ static int validate_namespace_options(struct ndctl_region *region,
 	} else if (p->mode == NDCTL_NS_MODE_DEVDAX) {
 		dax = ndctl_region_get_dax_seed(region);
 		if (!dax) {
-			error("Kernel does not support devdax mode\n");
+			error("Kernel does not support %s mode\n",
+					util_nsmode_name(p->mode));
 			return -ENODEV;
 		}
 	}
@@ -643,8 +619,7 @@ static int validate_namespace_options(struct ndctl_region *region,
 
 		default:
 			error("%s mode does not support setting an alignment\n",
-					p->mode == NDCTL_NS_MODE_SECTOR
-					? "sector" : "raw");
+					util_nsmode_name(p->mode));
 			return -ENXIO;
 		}
 
diff --git a/util/filter.c b/util/filter.c
index 9f6b65a70117..af72793929e2 100644
--- a/util/filter.c
+++ b/util/filter.c
@@ -351,29 +351,41 @@ struct daxctl_region *util_daxctl_region_filter(struct daxctl_region *region,
 	return NULL;
 }
 
-static enum ndctl_namespace_mode mode_to_type(const char *mode)
+enum ndctl_namespace_mode util_nsmode(const char *mode)
 {
 	if (!mode)
-		return -ENXIO;
-
+		return NDCTL_NS_MODE_UNKNOWN;
 	if (strcasecmp(mode, "memory") == 0)
-		return NDCTL_NS_MODE_MEMORY;
-	else if (strcasecmp(mode, "fsdax") == 0)
-		return NDCTL_NS_MODE_MEMORY;
-	else if (strcasecmp(mode, "sector") == 0)
+		return NDCTL_NS_MODE_FSDAX;
+	if (strcasecmp(mode, "fsdax") == 0)
+		return NDCTL_NS_MODE_FSDAX;
+	if (strcasecmp(mode, "sector") == 0)
 		return NDCTL_NS_MODE_SECTOR;
-	else if (strcasecmp(mode, "safe") == 0)
+	if (strcasecmp(mode, "safe") == 0)
 		return NDCTL_NS_MODE_SECTOR;
-	else if (strcasecmp(mode, "dax") == 0)
-		return NDCTL_NS_MODE_DAX;
-	else if (strcasecmp(mode, "devdax") == 0)
-		return NDCTL_NS_MODE_DAX;
-	else if (strcasecmp(mode, "raw") == 0)
+	if (strcasecmp(mode, "dax") == 0)
+		return NDCTL_NS_MODE_DEVDAX;
+	if (strcasecmp(mode, "devdax") == 0)
+		return NDCTL_NS_MODE_DEVDAX;
+	if (strcasecmp(mode, "raw") == 0)
 		return NDCTL_NS_MODE_RAW;
 
 	return NDCTL_NS_MODE_UNKNOWN;
 }
 
+const char *util_nsmode_name(enum ndctl_namespace_mode mode)
+{
+	static const char * const modes[] = {
+		[NDCTL_NS_MODE_FSDAX] = "fsdax",
+		[NDCTL_NS_MODE_DEVDAX] = "devdax",
+		[NDCTL_NS_MODE_RAW] = "raw",
+		[NDCTL_NS_MODE_SECTOR] = "sector",
+		[NDCTL_NS_MODE_UNKNOWN] = "unknown",
+	};
+
+	return modes[mode];
+}
+
 int util_filter_walk(struct ndctl_ctx *ctx, struct util_filter_ctx *fctx,
 		struct util_filter_params *param)
 {
@@ -396,7 +408,7 @@ int util_filter_walk(struct ndctl_ctx *ctx, struct util_filter_ctx *fctx,
 			type = ND_DEVICE_REGION_BLK;
 	}
 
-	if (mode_to_type(param->mode) == NDCTL_NS_MODE_UNKNOWN) {
+	if (param->mode && util_nsmode(param->mode) == NDCTL_NS_MODE_UNKNOWN) {
 		error("invalid mode: '%s'\n", param->mode);
 		return -EINVAL;
 	}
@@ -474,7 +486,7 @@ int util_filter_walk(struct ndctl_ctx *ctx, struct util_filter_ctx *fctx,
 					continue;
 
 				mode = ndctl_namespace_get_mode(ndns);
-				if (param->mode && mode_to_type(param->mode) != mode)
+				if (param->mode && util_nsmode(param->mode) != mode)
 					continue;
 
 				fctx->filter_namespace(ndns, fctx);
diff --git a/util/filter.h b/util/filter.h
index 0c12b94218d6..ad3441cc3a16 100644
--- a/util/filter.h
+++ b/util/filter.h
@@ -40,6 +40,9 @@ struct daxctl_dev *util_daxctl_dev_filter(struct daxctl_dev *dev,
 struct daxctl_region *util_daxctl_region_filter(struct daxctl_region *region,
 		const char *ident);
 
+enum ndctl_namespace_mode util_nsmode(const char *mode);
+const char *util_nsmode_name(enum ndctl_namespace_mode mode);
+
 struct json_object;
 
 /* json object hierarchy for the util_filter_walk() performed by cmd_list() */
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  parent reply	other threads:[~2020-02-29 20:37 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-29 20:20 [ndctl PATCH 00/36] Multiple topics / backlog for v68 Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 01/36] ndctl/list: Add 'target_node' to region and namespace verbose listings Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 02/36] ndctl/docs: Fix mailing list sign-up link Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 03/36] ndctl/list: Drop named list objects from verbose listing Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 04/36] daxctl/list: Avoid memory operations without resource data Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 05/36] ndctl/build: Fix distcheck Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 06/36] ndctl/namespace: Fix destroy-namespace accounting relative to seed devices Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 07/36] ndctl/region: Support ndctl_region_{get, set}_align() Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 08/36] ndctl/namespace: Emit better errors on failure Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 09/36] ndctl/namespace: Check for region alignment violations Dan Williams
2020-02-29 20:20 ` [ndctl PATCH 10/36] ndctl/util: Up-level is_power_of_2() and introduce IS_ALIGNED Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 11/36] ndctl/namespace: Validate resource alignment for dax-mode namespaces Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 12/36] ndctl/namespace: Add read-infoblock command Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 13/36] ndctl/test: Update dax-dev to handle multiple e820 ranges Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 14/36] ndctl/namespace: Always zero info-blocks Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 15/36] ndctl/namespace: Disable autorecovery of create-namespace failures Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 16/36] ndctl/build: Fix EXTRA_DIST already defined errors Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 17/36] ndctl/test: Checkout device-mapper + dax operation Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 18/36] ndctl/test: Exercise sub-section sized namespace creation/deletion Dan Williams
2020-02-29 20:21 ` [ndctl PATCH 19/36] ndctl/namespace: Kill off the legacy mode names Dan Williams
2020-02-29 20:21 ` Dan Williams [this message]
2020-02-29 20:21 ` [ndctl PATCH 21/36] ndctl/namespace: Validate namespace size within validate_namespace_options() Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 22/36] ndctl/namespace: Clarify 16M minimum size requirement Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 23/36] ndctl/test: Regression test 'failed to track' Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 24/36] ndctl/dimm: Rework dimm command status reporting Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 25/36] ndctl/dimm: Rework iteration to drop unaligned pointers Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 26/36] ndctl/test: Fix typos / loss of tpm.handle in security test Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 27/36] ndctl/test: Relax dax_pmem_compat requirement Dan Williams
2020-03-03 13:28   ` Jan Kara
2020-03-03 21:05     ` Dan Williams
2020-03-03 22:58   ` [ndctl PATCH v2 1/2] ndctl/test: Cleanup test-vs-production nvdimm module detection Dan Williams
2020-03-04 12:44     ` Jan Kara
2020-03-03 22:58   ` [ndctl PATCH v2 2/2] ndctl/test: Relax dax_pmem_compat requirement Dan Williams
2020-03-04 12:44     ` Jan Kara
2020-02-29 20:22 ` [ndctl PATCH 28/36] ndctl/namespace: Fix namespace-action vs namespace-mode confusion Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 29/36] ndctl/namespace: Update 'pfn' infoblock definition Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 30/36] ndctl/util: Return 0 for NULL arguments to parse_size64() Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 31/36] ndctl/namespace: Fix read-info-block vs read-infoblock Dan Williams
2020-02-29 20:22 ` [ndctl PATCH 32/36] ndctl/namespace: Parse infoblocks from stdin Dan Williams
2020-02-29 20:23 ` [ndctl PATCH 33/36] ndctl/namespace: Add write-infoblock command Dan Williams
2020-02-29 20:23 ` [ndctl PATCH 34/36] ndctl/list: Add option to list configured + disabled namespaces Dan Williams
2020-02-29 20:23 ` [ndctl PATCH 35/36] ndctl/lib/namespace: Fix resource retrieval after size change Dan Williams
2020-02-29 20:23 ` [ndctl PATCH 36/36] ndctl/test: Regression test misaligned namespaces Dan Williams
2020-03-19  4:13 ` [ndctl PATCH 00/36] Multiple topics / backlog for v68 Verma, Vishal L

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