From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 80DC2223DB7A9 for ; Thu, 8 Feb 2018 21:29:20 -0800 (PST) From: Vishal Verma Subject: [ndctl PATCH v2 2/4] ndctl: add ndctl_encode_smart_temperature() Date: Thu, 8 Feb 2018 22:34:58 -0700 Message-Id: <20180209053500.6871-2-vishal.l.verma@intel.com> In-Reply-To: <20180209053500.6871-1-vishal.l.verma@intel.com> References: <20180209053500.6871-1-vishal.l.verma@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: linux-nvdimm@lists.01.org List-ID: This provides for encoding of a human-readable temperature value into the format expected by the smart command Cc: Dan Williams Signed-off-by: Vishal Verma --- 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