- rebased to 2.28.0
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Dan Horák
parent
da9838c800
commit
d81d4fd383
@ -1,108 +0,0 @@
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From 493af760ed47454f5719f05a6e6316f43a3be98a Mon Sep 17 00:00:00 2001
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From: Stefan Haberland <sth@linux.ibm.com>
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Date: Mon, 8 May 2023 14:52:54 +0200
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Subject: [PATCH] zdev: add support for autoquiesce related sysfs attributes
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Autoquiesce is a mechanism that tells Linux to stop issuing I/Os to a
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specific DASD after certain events.
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Add support for configuring related DASD device attributes
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that govern the following aspects of autoquiesce:
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aq_mask - Configure which events lead to autoquiesce.
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aq_requeue - Configure if autoquiesce will requeue all I/O to blocklayer.
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aq_timeouts - Configure the number of timeouts before autoquiesce.
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Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
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Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
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Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
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---
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zdev/src/dasd.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 65 insertions(+)
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diff --git a/zdev/src/dasd.c b/zdev/src/dasd.c
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index f9fd231..4330229 100644
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--- a/zdev/src/dasd.c
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+++ b/zdev/src/dasd.c
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@@ -344,6 +344,68 @@ static struct attrib dasd_attr_fc_security = {
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.readonly = 1,
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};
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+static struct attrib dasd_attr_aq_mask = {
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+ .name = "aq_mask",
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+ .title = "Specify autoquiesce triggers",
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+ .desc =
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+ "Use the aq_mask attribute to automatically quiesce a device and block\n"
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+ "new I/O after certain events.\n"
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+ "\n"
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+ "The value is a bitmask in decimal or hexadecimal format where each set bit\n"
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+ "indicates that the associated event shown in the table below triggers an\n"
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+ "autoquiesce.\n"
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+ " Bit 0 is not used.\n"
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+ " 1 - 0x02 - A terminal I/O error occurred\n"
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+ " 2 - 0x04 - No active channel paths remain for the device\n"
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+ " 3 - 0x08 - A state change interrupt occurred\n"
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+ " 4 - 0x10 - The device is PPRC suspended\n"
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+ " 5 - 0x20 - No space is left on an ESE device\n"
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+ " 6 - 0x40 – The number of timeouts specified in aq_timeouts is reached\n"
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+ " 7 - 0x80 - I/O was not started because of an error in the start function\n"
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+ "\n"
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+ "For example bits 1,3 and 5 set (0010 1010) lead to an integer value of 42\n"
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+ "or 0x2A.\n"
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+ "An integer value of 0 turns off the autoquiesce function.\n",
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+ .order_cmp = ccw_online_only_order_cmp,
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+ .check = ccw_online_only_check,
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+ .defval = "0",
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+ /*
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+ * Currently only 8 bits are defined and the max value is 255.
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+ * This needs to be adjusted if more bits are defined.
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+ */
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+ .accept = ACCEPT_ARRAY(ACCEPT_RANGE(0, 255)),
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+};
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+
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+static struct attrib dasd_attr_aq_requeue = {
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+ .name = "aq_requeue",
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+ .title = "Control I/O requeing during autoquiesce",
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+ .desc =
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+ "Use the aq_requeue attribute to control whether outstanding I/O\n"
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+ "operations to the blocklayer should be automatically requeued after\n"
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+ "an autoquiesce event.\n"
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+ "Valid values are 1 for requeuing, or 0 for no requeueing.\n"
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+ "Requeing the I/O requests to the blocklayer might benefit I/O\n"
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+ "in case of a copy_pair swap operation.\n",
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+ .order_cmp = ccw_online_only_order_cmp,
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+ .check = ccw_online_only_check,
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+ .defval = "0",
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+ .accept = ACCEPT_ARRAY(ACCEPT_RANGE(0, 1)),
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+};
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+
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+static struct attrib dasd_attr_aq_timeouts = {
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+ .name = "aq_timeouts",
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+ .title = "Specify timeout retry threshold",
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+ .desc =
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+ "Specify the number of sequential timeout events for an I/O operation\n"
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+ "before an autoquiesce is triggered on a device.\n"
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+ "This requires that the corresponding trigger bit 6 is set\n"
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+ "in the aq_mask attribute.\n",
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+ .order_cmp = ccw_online_only_order_cmp,
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+ .check = ccw_online_only_check,
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+ .defval = "32768",
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+ .accept = ACCEPT_ARRAY(ACCEPT_RANGE(0, 32768)),
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+};
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+
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/*
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* DASD subtype methods.
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*/
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@@ -725,6 +787,9 @@ struct subtype dasd_subtype_eckd = {
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&dasd_attr_safe_offline,
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&dasd_attr_fc_security,
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&dasd_attr_copy_pair,
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+ &dasd_attr_aq_mask,
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+ &dasd_attr_aq_requeue,
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+ &dasd_attr_aq_timeouts,
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&internal_attr_early,
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),
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.unknown_dev_attribs = 1,
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--
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2.39.2
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0
s390utils-2.28.0-fedora.patch
Normal file
0
s390utils-2.28.0-fedora.patch
Normal file
@ -9,7 +9,7 @@
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Name: s390utils
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Summary: Utilities and daemons for IBM z Systems
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Version: 2.27.0
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Version: 2.28.0
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Release: 1%{?dist}
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Epoch: 2
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License: MIT
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@ -38,7 +38,7 @@ Patch0: s390-tools-zipl-invert-script-options.patch
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Patch1: s390-tools-zipl-blscfg-rpm-nvr-sort.patch
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# upstream fixes/updates
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Patch100: s390utils-%{version}-fedora.patch
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#Patch100: s390utils-%%{version}-fedora.patch
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Requires: s390utils-core = %{epoch}:%{version}-%{release}
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Requires: s390utils-base = %{epoch}:%{version}-%{release}
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@ -67,10 +67,7 @@ be used together with the zSeries (s390) Linux kernel and device drivers.
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%patch 1 -p1 -b .blscfg-rpm-nvr-sort
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# upstream fixes/updates
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%patch 100 -p1
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# remove --strip from install
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find . -name Makefile | xargs sed -i 's/$(INSTALL) -s/$(INSTALL)/g'
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#%%patch 100 -p1
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%build
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@ -898,6 +895,9 @@ User-space development files for the s390/s390x architecture.
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%changelog
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* Tue Jul 11 2023 Dan Horák <dan[at]danny.cz> - 2:2.28.0-1
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- rebased to 2.28.0
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* Wed May 31 2023 Dan Horák <dan[at]danny.cz> - 2:2.27.0-1
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- rebased to 2.27.0
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2
sources
2
sources
@ -1 +1 @@
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SHA512 (s390-tools-2.27.0.tar.gz) = 8ec83718639d17fe7b1990f4e492f1e1bdd11e814b7838c921733eeccb212f417141042118eadf1e8db498e3ff2ce0c8d404189e436cefe17d9a3dacea22429f
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SHA512 (s390-tools-2.28.0.tar.gz) = ece3a1463e2c8b8e5626a5a8956c5d1a1227661dce2e75cbda0cb30b0a3fecb3f17a0cffc631c500eb7fda4094691f9cdbc342b7b9d1b7539f1a754cae9d6a84
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