All of lore.kernel.org
 help / color / mirror / Atom feed
From: Vishal Verma <vishal.l.verma@intel.com>
To: linux-nvdimm@lists.01.org
Subject: [ndctl PATCH 2/4] ndctl: add ndctl_encode_smart_temperature()
Date: Thu,  8 Feb 2018 14:04:26 -0700	[thread overview]
Message-ID: <20180208210428.7285-2-vishal.l.verma@intel.com> (raw)
In-Reply-To: <20180208210428.7285-1-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

_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

  reply	other threads:[~2018-02-08 20:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-08 21:04 [ndctl PATCH 1/4] ndctl, inject-error: error out for a non-existent namespace Vishal Verma
2018-02-08 21:04 ` Vishal Verma [this message]
2018-02-08 21:04 ` [ndctl PATCH 3/4] ndctl: add a new command - inject-smart Vishal Verma
2018-02-09  0:13   ` Dan Williams
2018-02-08 21:04 ` [ndctl PATCH 4/4] ndctl, bash-completion: Add bash completion for inject-smart Vishal Verma

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180208210428.7285-2-vishal.l.verma@intel.com \
    --to=vishal.l.verma@intel.com \
    --cc=linux-nvdimm@lists.01.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.