From: Vishal Verma <vishal.l.verma@intel.com>
To: linux-nvdimm@lists.01.org
Subject: [ndctl PATCH v2 2/4] ndctl: add ndctl_encode_smart_temperature()
Date: Thu, 8 Feb 2018 22:34:58 -0700 [thread overview]
Message-ID: <20180209053500.6871-2-vishal.l.verma@intel.com> (raw)
In-Reply-To: <20180209053500.6871-1-vishal.l.verma@intel.com>
This provides for encoding of a human-readable temperature value into
the format expected by the smart command
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
ndctl/lib/libndctl.c | 16 ++++++++++++++++
ndctl/lib/libndctl.sym | 1 +
ndctl/libndctl.h | 1 +
3 files changed, 18 insertions(+)
diff --git a/ndctl/lib/libndctl.c b/ndctl/lib/libndctl.c
index 4119a2e..ed5a65b 100644
--- a/ndctl/lib/libndctl.c
+++ b/ndctl/lib/libndctl.c
@@ -87,6 +87,22 @@ NDCTL_EXPORT double ndctl_decode_smart_temperature(unsigned int temp)
return t;
}
+NDCTL_EXPORT unsigned int ndctl_encode_smart_temperature(double temp)
+{
+ bool negative = false;
+ unsigned int t;
+
+ if (temp < 0) {
+ negative = true;
+ temp *= -1;
+ }
+ t = temp;
+ t *= 16;
+ if (negative)
+ t |= (1 << 15);
+ return t;
+}
+
struct ndctl_ctx;
/**
diff --git a/ndctl/lib/libndctl.sym b/ndctl/lib/libndctl.sym
index c160847..e7f9675 100644
--- a/ndctl/lib/libndctl.sym
+++ b/ndctl/lib/libndctl.sym
@@ -322,6 +322,7 @@ global:
ndctl_cmd_smart_threshold_set_ctrl_temperature;
ndctl_cmd_smart_threshold_set_spares;
ndctl_decode_smart_temperature;
+ ndctl_encode_smart_temperature;
ndctl_dimm_cmd_new_smart_inject;
ndctl_cmd_smart_inject_media_temperature;
ndctl_cmd_smart_inject_spares;
diff --git a/ndctl/libndctl.h b/ndctl/libndctl.h
index bd33d39..6091ff3 100644
--- a/ndctl/libndctl.h
+++ b/ndctl/libndctl.h
@@ -76,6 +76,7 @@ size_t ndctl_min_namespace_size(void);
size_t ndctl_sizeof_namespace_index(void);
size_t ndctl_sizeof_namespace_label(void);
double ndctl_decode_smart_temperature(unsigned int temp);
+unsigned int ndctl_encode_smart_temperature(double temp);
struct ndctl_ctx;
struct ndctl_ctx *ndctl_ref(struct ndctl_ctx *ctx);
--
2.14.3
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next prev parent reply other threads:[~2018-02-09 5:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-09 5:34 [ndctl PATCH v2 1/4] ndctl, inject-error: error out for a non-existent namespace Vishal Verma
2018-02-09 5:34 ` Vishal Verma [this message]
2018-02-09 5:34 ` [ndctl PATCH v2 3/4] ndctl: add a new command - inject-smart Vishal Verma
2018-02-09 6:31 ` Dan Williams
2018-02-09 5:35 ` [ndctl PATCH v2 4/4] ndctl, bash-completion: Add bash completion for inject-smart Vishal Verma
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