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import CS device-mapper-multipath-0.8.7-27.el9

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This commit is contained in:
eabdullin 2024-03-28 10:00:49 +00:00
parent e3b961a789
commit 34e7121e3d
18 changed files with 1585 additions and 2 deletions
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300
SOURCES/0091-multipathd-Added-support-to-handle-FPIN-Li-events-fo.patch Normal file
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@ -0,0 +1,300 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Muneendra <muneendra.kumar@broadcom.com>
Date: Wed, 20 Sep 2023 20:41:15 -0700
Subject: [PATCH] multipathd: Added support to handle FPIN-Li events for
FC-NVMe
This patch adds the support to handle FPIN-Li for FC-NVMe.
On receiving the FPIN-Li events this patch moves the devices paths
which are affected due to link integrity to marginal path groups.
The paths which are set to marginal path group will be unset
on receiving the RSCN events
(mwilck: minor compile fix for 32-bit architectures)
Signed-off-by: Muneendra <muneendra.kumar@broadcom.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
multipathd/fpin_handlers.c | 206 +++++++++++++++++++++++++++----------
1 file changed, 151 insertions(+), 55 deletions(-)
diff --git a/multipathd/fpin_handlers.c b/multipathd/fpin_handlers.c
index 571796e7..d5f7594d 100644
--- a/multipathd/fpin_handlers.c
+++ b/multipathd/fpin_handlers.c
@@ -59,18 +59,15 @@ static void _udev_device_unref(void *p)
/*set/unset the path state to marginal*/
-static int fpin_set_pathstate(struct path *pp, bool set)
+static void fpin_set_pathstate(struct path *pp, bool set)
{
const char *action = set ? "set" : "unset";
- if (!pp || !pp->mpp || !pp->mpp->alias)
- return -1;
-
- condlog(3, "\n%s: %s marginal path %s (fpin)",
- action, pp->mpp->alias, pp->dev_t);
+ condlog(3, "%s: %s marginal path %s (fpin)",
+ pp->mpp ? pp->mpp->alias : "orphan", action, pp->dev_t);
pp->marginal = set;
- pp->mpp->fpin_must_reload = true;
- return 0;
+ if (pp->mpp)
+ pp->mpp->fpin_must_reload = true;
}
/* This will unset marginal state of a device*/
@@ -81,14 +78,14 @@ static void fpin_path_unsetmarginal(char *devname, struct vectors *vecs)
pp = find_path_by_dev(vecs->pathvec, devname);
if (!pp)
pp = find_path_by_devt(vecs->pathvec, devname);
-
- fpin_set_pathstate(pp, false);
+ if (pp)
+ fpin_set_pathstate(pp, false);
}
/*This will set the marginal state of a device*/
-static int fpin_path_setmarginal(struct path *pp)
+static void fpin_path_setmarginal(struct path *pp)
{
- return fpin_set_pathstate(pp, true);
+ fpin_set_pathstate(pp, true);
}
/* Unsets all the devices in the list from marginal state */
@@ -175,8 +172,8 @@ static void fpin_set_rport_marginal(struct udev_device *rport_dev)
"Marginal", strlen("Marginal"));
}
-/*Add the marginal devices info into the list*/
-static void
+/*Add the marginal devices info into the list and return 0 on success*/
+static int
fpin_add_marginal_dev_info(uint32_t host_num, char *devname)
{
struct marginal_dev_list *newdev = NULL;
@@ -191,65 +188,160 @@ fpin_add_marginal_dev_info(uint32_t host_num, char *devname)
list_add_tail(&(newdev->node),
&fpin_li_marginal_dev_list_head);
pthread_mutex_unlock(&fpin_li_marginal_dev_mutex);
- }
+ } else
+ return -ENOMEM;
+ return 0;
}
/*
- * This function goes through the vecs->pathvec, and for
- * each path, check that the host number,
- * the target WWPN associated with the path matches
- * with the els wwpn and sets the path and port state to
+ * This function compares Transport Address Controller Port pn,
+ * Host Transport Address Controller Port pn with the els wwpn ,attached_wwpn
+ * and return 1 (match) or 0 (no match) or a negative error code
+ */
+static int extract_nvme_addresses_chk_path_pwwn(const char *address,
+ uint64_t els_wwpn, uint64_t els_attached_wwpn)
+
+{
+ uint64_t traddr;
+ uint64_t host_traddr;
+
+ /*
+ * Find the position of "traddr=" and "host_traddr="
+ * and the address will be in the below format
+ * "traddr=nn-0x200400110dff9400:pn-0x200400110dff9400,
+ * host_traddr=nn-0x200400110dff9400:pn-0x200400110dff9400"
+ */
+ const char *traddr_start = strstr(address, "traddr=");
+ const char *host_traddr_start = strstr(address, "host_traddr=");
+
+ if (!traddr_start || !host_traddr_start)
+ return -EINVAL;
+
+ /* Extract traddr pn */
+ if (sscanf(traddr_start, "traddr=nn-%*[^:]:pn-%" SCNx64, &traddr) != 1)
+ return -EINVAL;
+
+ /* Extract host_traddr pn*/
+ if (sscanf(host_traddr_start, "host_traddr=nn-%*[^:]:pn-%" SCNx64,
+ &host_traddr) != 1)
+ return -EINVAL;
+ condlog(4, "traddr 0x%" PRIx64 " hosttraddr 0x%" PRIx64 " els_wwpn 0x%"
+ PRIx64" els_host_traddr 0x%" PRIx64,
+ traddr, host_traddr,
+ els_wwpn, els_attached_wwpn);
+ if ((host_traddr == els_attached_wwpn) && (traddr == els_wwpn))
+ return 1;
+ return 0;
+}
+
+/*
+ * This function check that the Transport Address Controller Port pn,
+ * Host Transport Address Controller Port pn associated with the path matches
+ * with the els wwpn ,attached_wwpn and sets the path state to
* Marginal
*/
-static int fpin_chk_wwn_setpath_marginal(uint16_t host_num, struct vectors *vecs,
+static void fpin_check_set_nvme_path_marginal(uint16_t host_num, struct path *pp,
+ uint64_t els_wwpn, uint64_t attached_wwpn)
+{
+ struct udev_device *ctl = NULL;
+ const char *address = NULL;
+ int ret = 0;
+
+ ctl = udev_device_get_parent_with_subsystem_devtype(pp->udev, "nvme", NULL);
+ if (ctl == NULL) {
+ condlog(2, "%s: No parent device for ", pp->dev);
+ return;
+ }
+ address = udev_device_get_sysattr_value(ctl, "address");
+ if (!address) {
+ condlog(2, "%s: unable to get the address ", pp->dev);
+ return;
+ }
+ condlog(4, "\n address %s: dev :%s\n", address, pp->dev);
+ ret = extract_nvme_addresses_chk_path_pwwn(address, els_wwpn, attached_wwpn);
+ if (ret <= 0)
+ return;
+ ret = fpin_add_marginal_dev_info(host_num, pp->dev);
+ if (ret < 0)
+ return;
+ fpin_path_setmarginal(pp);
+}
+
+/*
+ * This function check the host number, the target WWPN
+ * associated with the path matches with the els wwpn and
+ * sets the path and port state to Marginal
+ */
+static void fpin_check_set_scsi_path_marginal(uint16_t host_num, struct path *pp,
uint64_t els_wwpn)
{
- struct path *pp;
- struct multipath *mpp;
- int i, k;
char rport_id[42];
const char *value = NULL;
struct udev_device *rport_dev = NULL;
uint64_t wwpn;
int ret = 0;
+ sprintf(rport_id, "rport-%d:%d-%d",
+ pp->sg_id.host_no, pp->sg_id.channel, pp->sg_id.transport_id);
+ rport_dev = udev_device_new_from_subsystem_sysname(udev,
+ "fc_remote_ports", rport_id);
+ if (!rport_dev) {
+ condlog(2, "%s: No fc_remote_port device for '%s'", pp->dev,
+ rport_id);
+ return;
+ }
+ pthread_cleanup_push(_udev_device_unref, rport_dev);
+ value = udev_device_get_sysattr_value(rport_dev, "port_name");
+ if (!value)
+ goto unref;
+
+ wwpn = strtol(value, NULL, 16);
+ /*
+ * If the port wwpn matches sets the path and port state
+ * to marginal
+ */
+ if (wwpn == els_wwpn) {
+ ret = fpin_add_marginal_dev_info(host_num, pp->dev);
+ if (ret < 0)
+ goto unref;
+ fpin_path_setmarginal(pp);
+ fpin_set_rport_marginal(rport_dev);
+ }
+unref:
+ pthread_cleanup_pop(1);
+ return;
+
+}
+
+/*
+ * This function goes through the vecs->pathvec, and for
+ * each path, it checks and sets the path state to marginal
+ * if the path's associated port wwpn ,hostnum matches with
+ * els wwnpn ,attached_wwpn
+ */
+static int fpin_chk_wwn_setpath_marginal(uint16_t host_num, struct vectors *vecs,
+ uint64_t els_wwpn, uint64_t attached_wwpn)
+{
+ struct path *pp;
+ struct multipath *mpp;
+ int i, k;
+ int ret = 0;
pthread_cleanup_push(cleanup_lock, &vecs->lock);
lock(&vecs->lock);
pthread_testcancel();
vector_foreach_slot(vecs->pathvec, pp, k) {
- /* Checks the host number and also for the SCSI FCP */
- if (pp->bus != SYSFS_BUS_SCSI || pp->sg_id.proto_id != SCSI_PROTOCOL_FCP || host_num != pp->sg_id.host_no)
+ if (!pp->mpp)
continue;
- sprintf(rport_id, "rport-%d:%d-%d",
- pp->sg_id.host_no, pp->sg_id.channel, pp->sg_id.transport_id);
- rport_dev = udev_device_new_from_subsystem_sysname(udev,
- "fc_remote_ports", rport_id);
- if (!rport_dev) {
- condlog(2, "%s: No fc_remote_port device for '%s'", pp->dev,
- rport_id);
- continue;
- }
- pthread_cleanup_push(_udev_device_unref, rport_dev);
- value = udev_device_get_sysattr_value(rport_dev, "port_name");
- if (!value)
- goto unref;
-
- if (value)
- wwpn = strtol(value, NULL, 16);
- /*
- * If the port wwpn matches sets the path and port state
- * to marginal
- */
- if (wwpn == els_wwpn) {
- ret = fpin_path_setmarginal(pp);
- if (ret < 0)
- goto unref;
- fpin_set_rport_marginal(rport_dev);
- fpin_add_marginal_dev_info(host_num, pp->dev);
+ /*checks if the bus type is nvme and the protocol is FC-NVMe*/
+ if ((pp->bus == SYSFS_BUS_NVME) && (pp->sg_id.proto_id == NVME_PROTOCOL_FC)) {
+ fpin_check_set_nvme_path_marginal(host_num, pp, els_wwpn, attached_wwpn);
+ } else if ((pp->bus == SYSFS_BUS_SCSI) &&
+ (pp->sg_id.proto_id == SCSI_PROTOCOL_FCP) &&
+ (host_num == pp->sg_id.host_no)) {
+ /* Checks the host number and also for the SCSI FCP */
+ fpin_check_set_scsi_path_marginal(host_num, pp, els_wwpn);
}
-unref:
- pthread_cleanup_pop(1);
}
/* walk backwards because reload_and_sync_map() can remove mpp */
vector_foreach_slot_backwards(vecs->mpvec, mpp, i) {
@@ -278,14 +370,18 @@ fpin_parse_li_els_setpath_marginal(uint16_t host_num, struct fc_tlv_desc *tlv,
struct fc_fn_li_desc *li_desc = (struct fc_fn_li_desc *)tlv;
int count = 0;
int ret = 0;
+ uint64_t attached_wwpn;
/* Update the wwn to list */
wwn_count = be32_to_cpu(li_desc->pname_count);
- condlog(4, "Got wwn count as %d\n", wwn_count);
+ attached_wwpn = be64_to_cpu(li_desc->attached_wwpn);
+ condlog(4, "Got wwn count as %d detecting wwn 0x%" PRIx64
+ " attached_wwpn 0x%" PRIx64 "\n",
+ wwn_count, be64_to_cpu(li_desc->detecting_wwpn), attached_wwpn);
for (iter = 0; iter < wwn_count; iter++) {
wwpn = be64_to_cpu(li_desc->pname_list[iter]);
- ret = fpin_chk_wwn_setpath_marginal(host_num, vecs, wwpn);
+ ret = fpin_chk_wwn_setpath_marginal(host_num, vecs, wwpn, attached_wwpn);
if (ret < 0)
condlog(2, "failed to set the path marginal associated with wwpn: 0x%" PRIx64 "\n", wwpn);

31
SOURCES/0092-multipath-tools-add-HPE-Alletra-9000-NVMe-to-hardwar.patch Normal file
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@ -0,0 +1,31 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 26 Oct 2023 13:24:34 -0400
Subject: [PATCH] multipath-tools: add HPE Alletra 9000 NVMe to hardware table
Add config to match configuration in 0.9.6 release
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 22ff1881..78ac7988 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -119,6 +119,14 @@ static struct hwentry default_hw[] = {
.dev_loss = MAX_DEV_LOSS_TMO,
.vpd_vendor_id = VPD_VP_HP3PAR,
},
+ {
+ /* Alletra 9000 NVMe */
+ .vendor = "NVME",
+ .product = "HPE Alletra",
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = -FAILBACK_IMMEDIATE,
+ .no_path_retry = NO_PATH_RETRY_QUEUE,
+ },
{
/* RA8000 / ESA12000 */
.vendor = "DEC",

70
SOURCES/0093-RH-multipath-add-mpathcleanup-man-page.patch Normal file
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@ -0,0 +1,70 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 3 Nov 2023 11:13:04 -0400
Subject: [PATCH] RH: multipath: add mpathcleanup man page
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/Makefile | 3 +++
multipath/mpathcleanup.8 | 24 ++++++++++++++++++++++++
2 files changed, 27 insertions(+)
create mode 100644 multipath/mpathcleanup.8
diff --git a/multipath/Makefile b/multipath/Makefile
index 1fc04c8d..cdfa160b 100644
--- a/multipath/Makefile
+++ b/multipath/Makefile
@@ -19,6 +19,7 @@ $(EXEC): $(OBJS) $(multipathdir)/libmultipath.so $(mpathcmddir)/libmpathcmd.so
$(GZIP) $(EXEC).8 > $(EXEC).8.gz
$(GZIP) $(EXEC).conf.5 > $(EXEC).conf.5.gz
$(GZIP) mpathconf.8 > mpathconf.8.gz
+ $(GZIP) mpathcleanup.8 > mpathcleanup.8.gz
install:
$(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir)
@@ -35,6 +36,7 @@ install:
$(INSTALL_PROGRAM) -d $(DESTDIR)$(man5dir)
$(INSTALL_PROGRAM) -m 644 $(EXEC).conf.5.gz $(DESTDIR)$(man5dir)
$(INSTALL_PROGRAM) -m 644 mpathconf.8.gz $(DESTDIR)$(man8dir)
+ $(INSTALL_PROGRAM) -m 644 mpathcleanup.8.gz $(DESTDIR)$(man8dir)
uninstall:
$(RM) $(DESTDIR)$(bindir)/$(EXEC)
@@ -45,6 +47,7 @@ uninstall:
$(RM) $(DESTDIR)$(man8dir)/$(EXEC).8.gz
$(RM) $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz
$(RM) $(DESTDIR)$(man8dir)/mpathconf.8.gz
+ $(RM) $(DESTDIR)$(man8dir)/mpathcleanup.8.gz
clean: dep_clean
$(RM) core *.o $(EXEC) *.gz multipath.rules tmpfiles.conf
diff --git a/multipath/mpathcleanup.8 b/multipath/mpathcleanup.8
new file mode 100644
index 00000000..184c35c9
--- /dev/null
+++ b/multipath/mpathcleanup.8
@@ -0,0 +1,24 @@
+.TH MPATHCLEANUP 8 "November 2023" "" "Linux Administrator's Manual"
+.SH NAME
+mpathcleanup - A tool to remove a multipath device and its scsi path devices
+.SH SYNOPSIS
+.B mpathcleanup
+[\fB\-h\fR] [\fB\-\-flush\fR] \fBdevice\fR
+.SH DESCRIPTION
+\fBmpathcleanup\fR is a utility that attempts to remove a multipath device and
+its underlying paths. It only works for multipath devices built on top of scsi
+devices.
+.SH OPTIONS
+.TP
+.B \-\-flush
+Disable queueing on the multipath device and flush the path devices before
+removing.
+.TP
+\fB\-h\fR|\fB\-\-help\fR
+Display help text.
+.SH "SEE ALSO"
+.BR multipath.conf (5),
+.BR multipath (8),
+.BR multipathd (8)
+.SH AUTHOR
+Benjamin Marzinski <bmarzins@redhat.com>

182
SOURCES/0094-libmultipath-Add-max_retries-config-option.patch Normal file
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@ -0,0 +1,182 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 9 Nov 2023 18:46:11 -0500
Subject: [PATCH] libmultipath: Add max_retries config option
This option lets multipath set a scsi disk's max_retries sysfs value.
Setting this can be helpful for cases where the path checker succeeds,
but IO commands hang and timeout. By default, the SCSI layer will retry
IOs 5 times. Reducing this value will allow multipath to retry the IO
down another path sooner.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/config.h | 1 +
libmultipath/dict.c | 25 ++++++++++++++++++++++++
libmultipath/discovery.c | 40 +++++++++++++++++++++++++++++++++++++-
libmultipath/structs.h | 6 ++++++
multipath/multipath.conf.5 | 14 +++++++++++++
5 files changed, 85 insertions(+), 1 deletion(-)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index c1e18363..b0ee8241 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -162,6 +162,7 @@ struct config {
int fast_io_fail;
unsigned int dev_loss;
int eh_deadline;
+ int max_retries;
int log_checker_err;
int allow_queueing;
int allow_usb_devices;
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index eb2f33a2..0c66c1e1 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -1206,6 +1206,30 @@ declare_hw_snprint(eh_deadline, print_undef_off_zero)
declare_pc_handler(eh_deadline, set_undef_off_zero)
declare_pc_snprint(eh_deadline, print_undef_off_zero)
+static int
+def_max_retries_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
+{
+ char * buff;
+
+ buff = set_value(strvec);
+ if (!buff)
+ return 1;
+
+ if (strcmp(buff, "off") == 0)
+ conf->max_retries = MAX_RETRIES_OFF;
+ else if (strcmp(buff, "0") == 0)
+ conf->max_retries = MAX_RETRIES_ZERO;
+ else
+ do_set_int(strvec, &conf->max_retries, 1, 5, file, line_nr,
+ buff);
+
+ free(buff);
+ return 0;
+}
+
+declare_def_snprint(max_retries, print_undef_off_zero)
+
static int
set_pgpolicy(vector strvec, void *ptr, const char *file, int line_nr)
{
@@ -2143,6 +2167,7 @@ init_keywords(vector keywords)
install_keyword("fast_io_fail_tmo", &def_fast_io_fail_handler, &snprint_def_fast_io_fail);
install_keyword("dev_loss_tmo", &def_dev_loss_handler, &snprint_def_dev_loss);
install_keyword("eh_deadline", &def_eh_deadline_handler, &snprint_def_eh_deadline);
+ install_keyword("max_retries", &def_max_retries_handler, &snprint_def_max_retries);
install_keyword("bindings_file", &def_bindings_file_handler, &snprint_def_bindings_file);
install_keyword("wwids_file", &def_wwids_file_handler, &snprint_def_wwids_file);
install_keyword("prkeys_file", &def_prkeys_file_handler, &snprint_def_prkeys_file);
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index a592a54e..adf8bbaa 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -632,6 +632,42 @@ sysfs_set_eh_deadline(struct path *pp)
return (ret <= 0);
}
+static int
+sysfs_set_max_retries(struct config *conf, struct path *pp)
+{
+ struct udev_device *parent;
+ char value[16];
+ STRBUF_ON_STACK(buf);
+ int ret, len;
+
+ if (conf->max_retries == MAX_RETRIES_UNSET)
+ return 0;
+
+ if (!pp->udev || pp->sg_id.host_no < 0)
+ return 1;
+
+ len = sprintf(value, "%d", (conf->max_retries == MAX_RETRIES_OFF)? -1 :
+ (conf->max_retries == MAX_RETRIES_ZERO)? 0 :
+ conf->max_retries);
+
+ parent = udev_device_get_parent_with_subsystem_devtype(pp->udev,
+ "scsi", "scsi_device");
+ if (!parent)
+ return 1;
+
+ if (print_strbuf(&buf, "scsi_disk/%i:%i:%i:%" PRIu64 "/max_retries",
+ pp->sg_id.host_no, pp->sg_id.channel,
+ pp->sg_id.scsi_id, pp->sg_id.lun) < 0)
+ return 1;
+
+ ret = sysfs_attr_set_value(parent, get_strbuf_str(&buf), value, len);
+ if (len != ret)
+ condlog(3, "%s/%s: failed to set value to %s: %s",
+ udev_device_get_sysname(parent), get_strbuf_str(&buf),
+ value, (ret < 0)? strerror(-ret) : "write underflow");
+ return (len != ret);
+}
+
static void
sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
{
@@ -862,13 +898,15 @@ sysfs_set_scsi_tmo (struct config *conf, struct multipath *mpp)
if (pp->dev_loss == DEV_LOSS_TMO_UNSET &&
pp->fast_io_fail == MP_FAST_IO_FAIL_UNSET &&
- pp->eh_deadline == EH_DEADLINE_UNSET)
+ pp->eh_deadline == EH_DEADLINE_UNSET &&
+ conf->max_retries == MAX_RETRIES_UNSET)
continue;
if (pp->bus != SYSFS_BUS_SCSI)
continue;
sysfs_set_eh_deadline(pp);
+ sysfs_set_max_retries(conf, pp);
if (pp->dev_loss == DEV_LOSS_TMO_UNSET &&
pp->fast_io_fail == MP_FAST_IO_FAIL_UNSET)
diff --git a/libmultipath/structs.h b/libmultipath/structs.h
index c1e93e6e..b4252ab5 100644
--- a/libmultipath/structs.h
+++ b/libmultipath/structs.h
@@ -276,6 +276,12 @@ enum eh_deadline_states {
EH_DEADLINE_ZERO = UOZ_ZERO,
};
+enum max_retries_states {
+ MAX_RETRIES_UNSET = UOZ_UNDEF,
+ MAX_RETRIES_OFF = UOZ_OFF,
+ MAX_RETRIES_ZERO = UOZ_ZERO,
+};
+
enum recheck_wwid_states {
RECHECK_WWID_UNDEF = YNU_UNDEF,
RECHECK_WWID_OFF = YNU_NO,
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 5e447e67..789f0bfc 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -743,6 +743,20 @@ The default is: \fB<unset>\fR
.
.
.TP
+.B max_retries
+Specify the maximum number of times the SCSI layer will retry IO commands for
+some types of SCSI errors before returning failure. Setting this can be helpful
+for cases where IO commands hang and timeout. By default, the SCSI layer will
+retry IOs 5 times. Reducing this value will allow multipath to retry the IO
+down another path sooner. Valid values are
+\fB0\fR through \fB5\fR.
+.RS
+.TP
+The default is: \fB<unset>\fR
+.RE
+.
+.
+.TP
.B bindings_file
This option is deprecated, and will be removed in a future release.
The full pathname of the binding file to be used when the user_friendly_names

29
SOURCES/0095-libmutipath-Retain-device-size-if-sysfs_get_size-fai.patch Normal file
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@ -0,0 +1,29 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 9 Nov 2023 18:46:12 -0500
Subject: [PATCH] libmutipath: Retain device size if sysfs_get_size fails.
When paths are allocated their size is initialized to 0. If they've
already set a size, and a future call to sysfs_get_size() fails during
the parsing, assume that the size hasn't changed, instead of setting it
to 0. All other failures in sysfs_get_size() already retain the existing
size.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/sysfs.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/libmultipath/sysfs.c b/libmultipath/sysfs.c
index 24c12b6a..41354f91 100644
--- a/libmultipath/sysfs.c
+++ b/libmultipath/sysfs.c
@@ -229,7 +229,6 @@ sysfs_get_size (struct path *pp, unsigned long long * size)
if (r != 1) {
condlog(3, "%s: Cannot parse size attribute", pp->dev);
- *size = 0;
return 1;
}

68
SOURCES/0096-multipathd-check-and-update-all-paths-when-in-cli_re.patch Normal file
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@ -0,0 +1,68 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 9 Nov 2023 18:46:13 -0500
Subject: [PATCH] multipathd: check and update all paths when in cli_resize
When resizing a multipath device, make sure that all the paths have
been updated to the new size first.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
multipathd/cli_handlers.c | 31 ++++++++++++++++++-------------
1 file changed, 18 insertions(+), 13 deletions(-)
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index f322f10f..93c32c5b 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -866,9 +866,11 @@ cli_resize(void *v, char **reply, int *len, void *data)
char * mapname = get_keyparam(v, MAP);
struct multipath *mpp;
int minor;
- unsigned long long size;
+ unsigned long long size = 0;
struct pathgroup *pgp;
struct path *pp;
+ unsigned int i, j;
+ bool mismatch = false;
mapname = convert_dev(mapname, 0);
condlog(2, "%s: resize map (operator)", mapname);
@@ -888,21 +890,24 @@ cli_resize(void *v, char **reply, int *len, void *data)
return 1;
}
- pgp = VECTOR_SLOT(mpp->pg, 0);
-
- if (!pgp){
- condlog(0, "%s: couldn't get path group. cannot resize",
- mapname);
- return 1;
+ vector_foreach_slot(mpp->pg, pgp, i) {
+ vector_foreach_slot (pgp->paths, pp, j) {
+ sysfs_get_size(pp, &pp->size);
+ if (!pp->size)
+ continue;
+ if (!size)
+ size = pp->size;
+ else if (pp->size != size)
+ mismatch = true;
+ }
}
- pp = VECTOR_SLOT(pgp->paths, 0);
-
- if (!pp){
- condlog(0, "%s: couldn't get path. cannot resize", mapname);
+ if (!size) {
+ condlog(0, "%s: couldn't get size from sysfs. cannot resize",
+ mapname);
return 1;
}
- if (!pp->udev || sysfs_get_size(pp, &size)) {
- condlog(0, "%s: couldn't get size for sysfs. cannot resize",
+ if (mismatch) {
+ condlog(0, "%s: path size not consistent. cannot resize",
mapname);
return 1;
}

58
SOURCES/0097-multipathd-move-post-reloading-commands-into-resize_.patch Normal file
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@ -0,0 +1,58 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 9 Nov 2023 18:46:14 -0500
Subject: [PATCH] multipathd: move post-reloading commands into resize_map()
In preparation for reusing resize_map() in other code, move all code
necessary to resize the map to the resize_map() function. Also track if
map was removed in the function.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/cli_handlers.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index 93c32c5b..b08b248f 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -856,6 +856,10 @@ int resize_map(struct multipath *mpp, unsigned long long size,
mpp->size = orig_size;
return 1;
}
+ if (setup_multipath(vecs, mpp) != 0)
+ return 2;
+ sync_map_state(mpp);
+
return 0;
}
@@ -869,7 +873,7 @@ cli_resize(void *v, char **reply, int *len, void *data)
unsigned long long size = 0;
struct pathgroup *pgp;
struct path *pp;
- unsigned int i, j;
+ unsigned int i, j, ret;
bool mismatch = false;
mapname = convert_dev(mapname, 0);
@@ -919,14 +923,12 @@ cli_resize(void *v, char **reply, int *len, void *data)
condlog(3, "%s old size is %llu, new size is %llu", mapname, mpp->size,
size);
- if (resize_map(mpp, size, vecs) != 0)
- return 1;
+ ret = resize_map(mpp, size, vecs);
- if (setup_multipath(vecs, mpp) != 0)
- return 1;
- sync_map_state(mpp);
+ if (ret == 2)
+ condlog(0, "%s: map removed while trying to resize", mapname);
- return 0;
+ return (ret != 0);
}
int

106
SOURCES/0098-multipathd-move-resize_map-to-multipathd-main.c.patch Normal file
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@ -0,0 +1,106 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 10 Nov 2023 17:59:42 -0500
Subject: [PATCH] multipathd: move resize_map() to multipathd/main.c
No functional changes.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/cli_handlers.c | 29 -----------------------------
multipathd/main.c | 29 +++++++++++++++++++++++++++++
multipathd/main.h | 2 ++
3 files changed, 31 insertions(+), 29 deletions(-)
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index b08b248f..53bebc8d 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -834,35 +834,6 @@ cli_reload(void *v, char **reply, int *len, void *data)
return reload_and_sync_map(mpp, vecs, 0);
}
-int resize_map(struct multipath *mpp, unsigned long long size,
- struct vectors * vecs)
-{
- char *params __attribute__((cleanup(cleanup_charp))) = NULL;
- unsigned long long orig_size = mpp->size;
-
- mpp->size = size;
- update_mpp_paths(mpp, vecs->pathvec);
- if (setup_map(mpp, &params, vecs) != 0) {
- condlog(0, "%s: failed to setup map for resize : %s",
- mpp->alias, strerror(errno));
- mpp->size = orig_size;
- return 1;
- }
- mpp->action = ACT_RESIZE;
- mpp->force_udev_reload = 1;
- if (domap(mpp, params, 1) == DOMAP_FAIL) {
- condlog(0, "%s: failed to resize map : %s", mpp->alias,
- strerror(errno));
- mpp->size = orig_size;
- return 1;
- }
- if (setup_multipath(vecs, mpp) != 0)
- return 2;
- sync_map_state(mpp);
-
- return 0;
-}
-
int
cli_resize(void *v, char **reply, int *len, void *data)
{
diff --git a/multipathd/main.c b/multipathd/main.c
index 075e7b13..d99cad72 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1379,6 +1379,35 @@ needs_ro_update(struct multipath *mpp, int ro)
return true;
}
+int resize_map(struct multipath *mpp, unsigned long long size,
+ struct vectors * vecs)
+{
+ char *params __attribute__((cleanup(cleanup_charp))) = NULL;
+ unsigned long long orig_size = mpp->size;
+
+ mpp->size = size;
+ update_mpp_paths(mpp, vecs->pathvec);
+ if (setup_map(mpp, &params, vecs) != 0) {
+ condlog(0, "%s: failed to setup map for resize : %s",
+ mpp->alias, strerror(errno));
+ mpp->size = orig_size;
+ return 1;
+ }
+ mpp->action = ACT_RESIZE;
+ mpp->force_udev_reload = 1;
+ if (domap(mpp, params, 1) == DOMAP_FAIL) {
+ condlog(0, "%s: failed to resize map : %s", mpp->alias,
+ strerror(errno));
+ mpp->size = orig_size;
+ return 1;
+ }
+ if (setup_multipath(vecs, mpp) != 0)
+ return 2;
+ sync_map_state(mpp);
+
+ return 0;
+}
+
static int
uev_update_path (struct uevent *uev, struct vectors * vecs)
{
diff --git a/multipathd/main.h b/multipathd/main.h
index bc1f938f..dbae4935 100644
--- a/multipathd/main.h
+++ b/multipathd/main.h
@@ -66,4 +66,6 @@ int reload_and_sync_map(struct multipath *mpp, struct vectors *vecs,
void handle_path_wwid_change(struct path *pp, struct vectors *vecs);
bool check_path_wwid_change(struct path *pp);
+int resize_map(struct multipath *mpp, unsigned long long size,
+ struct vectors *vecs);
#endif /* MAIN_H */

202
SOURCES/0099-multipathd-Add-auto_resize-config-option.patch Normal file
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@ -0,0 +1,202 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 9 Nov 2023 18:46:16 -0500
Subject: [PATCH] multipathd: Add auto_resize config option
This option gives multipathd the ability to automatically resize a
device when it detects that all of the path devices have changed. By
default it is set to never, and multipathd will continue to work like it
always has, where a users must manually resize a multipath device.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/config.h | 1 +
libmultipath/defaults.h | 1 +
libmultipath/dict.c | 38 ++++++++++++++++++++++++++++++++++++++
libmultipath/dict.h | 1 +
libmultipath/structs.h | 7 +++++++
multipath/multipath.conf.5 | 15 +++++++++++++++
multipathd/main.c | 28 ++++++++++++++++++++++++++++
7 files changed, 91 insertions(+)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index b0ee8241..5807ac68 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -201,6 +201,7 @@ struct config {
int skip_delegate;
unsigned int sequence_nr;
int recheck_wwid;
+ int auto_resize;
char * multipath_dir;
char * selector;
diff --git a/libmultipath/defaults.h b/libmultipath/defaults.h
index cec82f07..c3788bbc 100644
--- a/libmultipath/defaults.h
+++ b/libmultipath/defaults.h
@@ -54,6 +54,7 @@
#define DEFAULT_UNKNOWN_FIND_MULTIPATHS_TIMEOUT 1
#define DEFAULT_ALL_TG_PT ALL_TG_PT_OFF
#define DEFAULT_RECHECK_WWID RECHECK_WWID_OFF
+#define DEFAULT_AUTO_RESIZE AUTO_RESIZE_NEVER
/* Enable no foreign libraries by default */
#define DEFAULT_ENABLE_FOREIGN "NONE"
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 0c66c1e1..c4db60df 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -1736,6 +1736,43 @@ declare_hw_snprint(recheck_wwid, print_yes_no_undef)
declare_def_range_handler(uxsock_timeout, DEFAULT_REPLY_TIMEOUT, INT_MAX)
+static int
+def_auto_resize_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
+{
+ char * buff;
+
+ buff = set_value(strvec);
+ if (!buff)
+ return 1;
+
+ if (strcmp(buff, "never") == 0)
+ conf->auto_resize = AUTO_RESIZE_NEVER;
+ else if (strcmp(buff, "grow_only") == 0)
+ conf->auto_resize = AUTO_RESIZE_GROW_ONLY;
+ else if (strcmp(buff, "grow_shrink") == 0)
+ conf->auto_resize = AUTO_RESIZE_GROW_SHRINK;
+ else
+ condlog(1, "%s line %d, invalid value for auto_resize: \"%s\"",
+ file, line_nr, buff);
+
+ free(buff);
+ return 0;
+}
+
+int
+print_auto_resize(struct strbuf *buff, long v)
+{
+ if (!v)
+ return 0;
+ return append_strbuf_quoted(buff,
+ v == AUTO_RESIZE_GROW_ONLY ? "grow_only" :
+ v == AUTO_RESIZE_GROW_SHRINK ? "grow_shrink" :
+ "never");
+}
+
+declare_def_snprint(auto_resize, print_auto_resize)
+
static int
hw_vpd_vendor_handler(struct config *conf, vector strvec, const char *file,
int line_nr)
@@ -2202,6 +2239,7 @@ init_keywords(vector keywords)
install_keyword("remove_retries", &def_remove_retries_handler, &snprint_def_remove_retries);
install_keyword("max_sectors_kb", &def_max_sectors_kb_handler, &snprint_def_max_sectors_kb);
install_keyword("ghost_delay", &def_ghost_delay_handler, &snprint_def_ghost_delay);
+ install_keyword("auto_resize", &def_auto_resize_handler, &snprint_def_auto_resize);
install_keyword("find_multipaths_timeout",
&def_find_multipaths_timeout_handler,
&snprint_def_find_multipaths_timeout);
diff --git a/libmultipath/dict.h b/libmultipath/dict.h
index d80f990a..d963b4ad 100644
--- a/libmultipath/dict.h
+++ b/libmultipath/dict.h
@@ -19,4 +19,5 @@ int print_dev_loss(struct strbuf *buff, unsigned long v);
int print_reservation_key(struct strbuf *buff,
struct be64 key, uint8_t flags, int source);
int print_off_int_undef(struct strbuf *buff, long v);
+int print_auto_resize(struct strbuf *buff, long v);
#endif /* _DICT_H */
diff --git a/libmultipath/structs.h b/libmultipath/structs.h
index b4252ab5..8c2d7131 100644
--- a/libmultipath/structs.h
+++ b/libmultipath/structs.h
@@ -167,6 +167,13 @@ enum queue_mode_states {
QUEUE_MODE_RQ,
};
+enum auto_resize_state {
+ AUTO_RESIZE_UNDEF = 0,
+ AUTO_RESIZE_NEVER,
+ AUTO_RESIZE_GROW_ONLY,
+ AUTO_RESIZE_GROW_SHRINK,
+};
+
#define PROTOCOL_UNSET -1
enum scsi_protocol {
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 789f0bfc..38eb5c90 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1293,6 +1293,21 @@ The default is: \fBno\fR
.
.
.TP
+.B auto_resize
+Controls when multipathd will automatically resize a multipath device. If set
+to \fInever\fR, multipath devices must always be manually resized by either
+running \fBmultipathd resize map <name>\fR. If set to \fIgrow_only\fR, when
+multipathd detects that all of a multipath device's paths have increased in
+size, it will automatically grow the multipath device to the new size. If set
+to \fIgrow_shrink\fR, multipathd will also automatically shrink the device
+once it detects all of its paths have decreased in size.
+.RS
+.TP
+The default is: \fBnever\fR
+.RE
+.
+.
+.TP
.B enable_foreign
Enables or disables foreign libraries (see section
.I FOREIGN MULTIPATH SUPPORT
diff --git a/multipathd/main.c b/multipathd/main.c
index d99cad72..6d1a5e4e 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1439,6 +1439,11 @@ uev_update_path (struct uevent *uev, struct vectors * vecs)
if (pp) {
struct multipath *mpp = pp->mpp;
char wwid[WWID_SIZE];
+ int auto_resize;
+
+ conf = get_multipath_config();
+ auto_resize = conf->auto_resize;
+ put_multipath_config(conf);
if (pp->initialized == INIT_REQUESTED_UDEV) {
needs_reinit = 1;
@@ -1489,6 +1494,29 @@ uev_update_path (struct uevent *uev, struct vectors * vecs)
}
}
}
+ if (auto_resize != AUTO_RESIZE_NEVER &&
+ !mpp->wait_for_udev) {
+ struct pathgroup *pgp;
+ struct path *pp2;
+ unsigned int i, j;
+ unsigned long long orig_size = mpp->size;
+
+ if (!pp->size || pp->size == mpp->size ||
+ (pp->size < mpp->size &&
+ auto_resize == AUTO_RESIZE_GROW_ONLY))
+ goto out;
+
+ vector_foreach_slot(mpp->pg, pgp, i)
+ vector_foreach_slot (pgp->paths, pp2, j)
+ if (pp2->size && pp2->size != pp->size)
+ goto out;
+ retval = resize_map(mpp, pp->size, vecs);
+ if (retval == 2)
+ condlog(2, "%s: map removed during resize", pp->dev);
+ else if (retval == 0)
+ condlog(2, "%s: resized map from %llu to %llu",
+ mpp->alias, orig_size, pp->size);
+ }
}
out:
lock_cleanup_pop(vecs->lock);

42
SOURCES/0100-libmultipath-avoid-temporarily-enabling-queueing-on-.patch Normal file
View File

@ -0,0 +1,42 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 18 Dec 2023 16:30:42 -0500
Subject: [PATCH] libmultipath: avoid temporarily enabling queueing on reload
Instead of always enabling queueing when a map is reloaded with
no_path_retry set to a positive number, check if the map has timed out
in recovery mode, and only enable queueing if it has not. This saves
multipathd from having to disable queueing on the map immediately after
the reload.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dmparser.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/libmultipath/dmparser.c b/libmultipath/dmparser.c
index 16377c54..1ea2d619 100644
--- a/libmultipath/dmparser.c
+++ b/libmultipath/dmparser.c
@@ -61,9 +61,19 @@ int assemble_map(struct multipath *mp, char **params)
nr_priority_groups = VECTOR_SIZE(mp->pg);
initial_pg_nr = (nr_priority_groups ? mp->bestpg : 0);
- if (mp->no_path_retry != NO_PATH_RETRY_UNDEF &&
- mp->no_path_retry != NO_PATH_RETRY_FAIL) {
+ switch (mp->no_path_retry) {
+ case NO_PATH_RETRY_UNDEF:
+ case NO_PATH_RETRY_FAIL:
+ break;
+ default:
+ /* don't enable queueing if no_path_retry has timed out */
+ if (mp->in_recovery && mp->retry_tick == 0 &&
+ count_active_paths(mp) == 0)
+ break;
+ /* fallthrough */
+ case NO_PATH_RETRY_QUEUE:
add_feature(&mp->features, no_path_retry);
+ break;
}
if (mp->retain_hwhandler == RETAIN_HWHANDLER_ON &&
get_linux_version_code() < KERNEL_VERSION(4, 3, 0))

76
SOURCES/0101-multipathd-Make-sure-to-disable-queueing-if-recovery.patch Normal file
View File

@ -0,0 +1,76 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 22 Nov 2023 16:41:22 -0500
Subject: [PATCH] multipathd: Make sure to disable queueing if recovery has
failed.
If a multipath device has no_path_retry set to a number and has lost all
paths, gone into recovery mode, and timed out, it will disable
queue_if_no_paths. After that, if the device is reloaded by multipath
outside of multipathd, it will re-enable queuieng on the device. When
multipathd later calls set_no_path_retry() to update the queueing state,
it will not disable queue_if_no_paths, since the device is still in the
recovery state, so it believes no work needs to be done. The device will
remain in the recovery state, with retry_ticks at 0, and queueing
enabled, even though there are no usable paths.
To fix this, in set_no_path_retry(), if no_path_retry is set to a number
and the device is queueing but it is in recovery mode and out of
retries with no usable paths, manually disable queue_if_no_path.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/structs_vec.c | 26 ++++++++++++++++++++++++--
1 file changed, 24 insertions(+), 2 deletions(-)
diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 4a32b405..86ad89ca 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -614,8 +614,19 @@ void __set_no_path_retry(struct multipath *mpp, bool check_features)
!mpp->in_recovery)
dm_queue_if_no_path(mpp->alias, 1);
leave_recovery_mode(mpp);
- } else
- enter_recovery_mode(mpp);
+ } else {
+ /*
+ * If in_recovery is set, enter_recovery_mode does
+ * nothing. If the device is already in recovery
+ * mode and has already timed out, manually call
+ * dm_queue_if_no_path to stop it from queueing.
+ */
+ if ((!check_features || is_queueing) &&
+ mpp->in_recovery && mpp->retry_tick == 0)
+ dm_queue_if_no_path(mpp->alias, 0);
+ if (pathcount(mpp, PATH_PENDING) == 0)
+ enter_recovery_mode(mpp);
+ }
break;
}
}
@@ -761,6 +772,11 @@ int verify_paths(struct multipath *mpp)
* -1 (FAIL) : fail_if_no_path
* 0 (UNDEF) : nothing
* >0 : queue_if_no_path enabled, turned off after polling n times
+ *
+ * Since this will only be called when fail_path(), update_multipath(), or
+ * io_err_stat_handle_pathfail() are failing a previously active path, the
+ * device cannot already be in recovery mode, so there will never be a need
+ * to disable queueing here.
*/
void update_queue_mode_del_path(struct multipath *mpp)
{
@@ -774,6 +790,12 @@ void update_queue_mode_del_path(struct multipath *mpp)
condlog(2, "%s: remaining active paths: %d", mpp->alias, active);
}
+/*
+ * Since this will only be called from check_path() -> reinstate_path() after
+ * the queueing state has been updated in set_no_path_retry, this does not
+ * need to worry about modifying the queueing state except when actually
+ * leaving recovery mode.
+ */
void update_queue_mode_add_path(struct multipath *mpp)
{
int active = count_active_paths(mpp);

131
SOURCES/0102-multipathd-remove-nopath-flushing-code-from-flush_ma.patch Normal file
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@ -0,0 +1,131 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 6 Dec 2023 17:22:02 -0500
Subject: [PATCH] multipathd: remove nopath flushing code from flush_map()
Instead of flush_map() handling both user requested flushes and
automatic flushes when the last path has been deleted, make
flush_map_nopaths() handle the automatic flushes itself, since a later
patch will change the behavior of flush_map().
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/cli_handlers.c | 2 +-
multipathd/main.c | 45 +++++++++++++++++----------------------
multipathd/main.h | 2 +-
3 files changed, 21 insertions(+), 28 deletions(-)
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index 53bebc8d..f04fb558 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -796,7 +796,7 @@ cli_del_maps (void *v, char **reply, int *len, void *data)
condlog(2, "remove maps (operator)");
vector_foreach_slot(vecs->mpvec, mpp, i) {
- if (flush_map(mpp, vecs, 0))
+ if (flush_map(mpp, vecs))
ret++;
else
i--;
diff --git a/multipathd/main.c b/multipathd/main.c
index 6d1a5e4e..1b5f82e7 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -490,12 +490,11 @@ int update_multipath (struct vectors *vecs, char *mapname, int reset)
static bool
flush_map_nopaths(struct multipath *mpp, struct vectors *vecs) {
- char alias[WWID_SIZE];
+ int r;
/*
* flush_map will fail if the device is open
*/
- strlcpy(alias, mpp->alias, WWID_SIZE);
if (mpp->flush_on_last_del == FLUSH_ENABLED) {
condlog(2, "%s Last path deleted, disabling queueing",
mpp->alias);
@@ -505,11 +504,20 @@ flush_map_nopaths(struct multipath *mpp, struct vectors *vecs) {
mpp->stat_map_failures++;
dm_queue_if_no_path(mpp->alias, 0);
}
- if (!flush_map(mpp, vecs, 1)) {
- condlog(2, "%s: removed map after removing all paths", alias);
- return true;
+ r = dm_flush_map_nopaths(mpp->alias, mpp->deferred_remove);
+ if (r) {
+ if (r == 1)
+ condlog(0, "%s: can't flush", mpp->alias);
+ else {
+ condlog(2, "%s: devmap deferred remove", mpp->alias);
+ mpp->deferred_remove = DEFERRED_REMOVE_IN_PROGRESS;
+ }
+ return false;
}
- return false;
+
+ condlog(2, "%s: map flushed after removing all paths", mpp->alias);
+ remove_map_and_stop_waiter(mpp, vecs);
+ return true;
}
static void
@@ -685,30 +693,15 @@ sync_maps_state(vector mpvec)
}
int
-flush_map(struct multipath * mpp, struct vectors * vecs, int nopaths)
+flush_map(struct multipath * mpp, struct vectors * vecs)
{
- int r;
-
- if (nopaths)
- r = dm_flush_map_nopaths(mpp->alias, mpp->deferred_remove);
- else
- r = dm_flush_map(mpp->alias);
- /*
- * clear references to this map before flushing so we can ignore
- * the spurious uevent we may generate with the dm_flush_map call below
- */
+ int r = dm_flush_map(mpp->alias);
if (r) {
- if (r == 1)
- condlog(0, "%s: can't flush", mpp->alias);
- else {
- condlog(2, "%s: devmap deferred remove", mpp->alias);
- mpp->deferred_remove = DEFERRED_REMOVE_IN_PROGRESS;
- }
+ condlog(0, "%s: can't flush", mpp->alias);
return r;
}
- else
- condlog(2, "%s: map flushed", mpp->alias);
+ condlog(2, "%s: map flushed", mpp->alias);
remove_map_and_stop_waiter(mpp, vecs);
return 0;
@@ -866,7 +859,7 @@ ev_remove_map (char * devname, char * alias, int minor, struct vectors * vecs)
mpp->alias, mpp->dmi->minor, minor);
return 1;
}
- return flush_map(mpp, vecs, 0);
+ return flush_map(mpp, vecs);
}
static void
diff --git a/multipathd/main.h b/multipathd/main.h
index dbae4935..4138faa4 100644
--- a/multipathd/main.h
+++ b/multipathd/main.h
@@ -43,7 +43,7 @@ int ev_add_path (struct path *, struct vectors *, int);
int ev_remove_path (struct path *, struct vectors *, int);
int ev_add_map (char *, const char *, struct vectors *);
int ev_remove_map (char *, char *, int, struct vectors *);
-int flush_map(struct multipath *, struct vectors *, int);
+int flush_map(struct multipath *, struct vectors *);
int set_config_state(enum daemon_status);
void * mpath_alloc_prin_response(int prin_sa);
int prin_do_scsi_ioctl(char *, int rq_servact, struct prin_resp * resp,

39
SOURCES/0103-multipathd-make-flush_map-delete-maps-like-the-multi.patch Normal file
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@ -0,0 +1,39 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 7 Dec 2023 11:23:18 -0500
Subject: [PATCH] multipathd: make flush_map() delete maps like the multipath
command
When the multipath command tries to delete a multipath device, it first
disables queueing and then suspends the device to force the IOs to get
flushed. Then it attempts to delete the device and any kpartx
partitions. multipathd, on the other hand, simply tries to delete the
device and kpartx partitions, without disabling queueing or suspending.
If there are no paths but there is outstanding IO, multipathd will hang
trying to delete the last kpartx device. This is because it must be the
last opener of the multipath device (multipath won't try to delete the
device if it has any openers besides the kpartx devices) and the kernel
will not allow the last opener of a block device to close until all the
outstanding IO is flushed. This hang can be avoided if multipathd calls
dm_suspend_and_flush_map() like the multipath command does, instead of
dm_flush_map().
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 1b5f82e7..3eeca82f 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -695,7 +695,7 @@ sync_maps_state(vector mpvec)
int
flush_map(struct multipath * mpp, struct vectors * vecs)
{
- int r = dm_flush_map(mpp->alias);
+ int r = dm_suspend_and_flush_map(mpp->alias, 0);
if (r) {
condlog(0, "%s: can't flush", mpp->alias);
return r;

83
SOURCES/0104-multipathd-disable-queueing-when-removing-unknown-ma.patch Normal file
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@ -0,0 +1,83 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 8 Dec 2023 14:50:31 -0500
Subject: [PATCH] multipathd: disable queueing when removing unknown maps
Make cli_del_maps() call dm_suspend_and_flush_map() for the unknown
multipath devices as well.
After this change, all callers of cli_del_maps() set need_suspend, so
simplify dm_flush_maps().
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 7 ++-----
libmultipath/devmapper.h | 2 +-
multipath/main.c | 2 +-
multipathd/cli_handlers.c | 2 +-
4 files changed, 5 insertions(+), 8 deletions(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 4b2e8a15..f9de3358 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -1145,7 +1145,7 @@ dm_flush_map_nopaths(const char * mapname,
#endif
-int dm_flush_maps (int need_suspend, int retries)
+int dm_flush_maps (int retries)
{
int r = 1;
struct dm_task *dmt;
@@ -1170,10 +1170,7 @@ int dm_flush_maps (int need_suspend, int retries)
goto out;
do {
- if (need_suspend)
- r |= dm_suspend_and_flush_map(names->name, retries);
- else
- r |= dm_flush_map(names->name);
+ r |= dm_suspend_and_flush_map(names->name, retries);
next = names->next;
names = (void *) names + next;
} while (next);
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index 45a676de..808da28d 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -55,7 +55,7 @@ int dm_flush_map_nopaths(const char * mapname, int deferred_remove);
#define dm_suspend_and_flush_map(mapname, retries) \
_dm_flush_map(mapname, 1, 0, 1, retries)
int dm_cancel_deferred_remove(struct multipath *mpp);
-int dm_flush_maps (int need_suspend, int retries);
+int dm_flush_maps (int retries);
int dm_fail_path(const char * mapname, char * path);
int dm_reinstate_path(const char * mapname, char * path);
int dm_queue_if_no_path(const char *mapname, int enable);
diff --git a/multipath/main.c b/multipath/main.c
index f1077421..e296be6e 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -1126,7 +1126,7 @@ main (int argc, char *argv[])
goto out;
}
else if (cmd == CMD_FLUSH_ALL) {
- r = dm_flush_maps(1, retries) ? RTVL_FAIL : RTVL_OK;
+ r = dm_flush_maps(retries) ? RTVL_FAIL : RTVL_OK;
goto out;
}
while ((r = configure(conf, cmd, dev_type, dev)) == RTVL_RETRY)
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index f04fb558..aca8e2df 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -802,7 +802,7 @@ cli_del_maps (void *v, char **reply, int *len, void *data)
i--;
}
/* flush any multipath maps that aren't currently known by multipathd */
- ret |= dm_flush_maps(0, 0);
+ ret |= dm_flush_maps(0);
return ret;
}

28
SOURCES/0105-multipathd-fix-null-pointer-dereference-in-uev_updat.patch Normal file
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@ -0,0 +1,28 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 16 Jan 2024 20:19:11 -0500
Subject: [PATCH] multipathd: fix null pointer dereference in uev_update_path
The Auto-resize code added a check that deferences pp->mpp without
checking that it's non-NULL. Fix it.
Fixes: 981b83ad1 ("multipathd: Add auto_resize config option")
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
multipathd/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 3eeca82f..26be6dc3 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1487,7 +1487,7 @@ uev_update_path (struct uevent *uev, struct vectors * vecs)
}
}
}
- if (auto_resize != AUTO_RESIZE_NEVER &&
+ if (auto_resize != AUTO_RESIZE_NEVER && mpp &&
!mpp->wait_for_udev) {
struct pathgroup *pgp;
struct path *pp2;

43
SOURCES/0106-multipathd-fix-auto-resize-configuration.patch Normal file
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@ -0,0 +1,43 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 16 Jan 2024 20:19:12 -0500
Subject: [PATCH] multipathd: fix auto-resize configuration
The code acted like AUTO_RESIZE_UNDEFINED didn't exist, but since
conf->auto_resize was never set to AUTO_RESIZE_NEVER, the default was in
fact AUTO_RESIZE_UNDEFINED, which ended up getting treated like
AUTO_RESIZE_GROW_SHRINK. Remove AUTO_RESIZE_UNDEFINED and explicitly
default auto_resize tp AUTO_RESIZE_NEVER.
Fixes: 981b83ad1 ("multipathd: Add auto_resize config option")
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/config.c | 1 +
libmultipath/structs.h | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index 61b0dd51..f31200a3 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -940,6 +940,7 @@ int _init_config (const char *file, struct config *conf)
conf->retrigger_tries = DEFAULT_RETRIGGER_TRIES;
conf->retrigger_delay = DEFAULT_RETRIGGER_DELAY;
conf->uev_wait_timeout = DEFAULT_UEV_WAIT_TIMEOUT;
+ conf->auto_resize = DEFAULT_AUTO_RESIZE;
conf->remove_retries = 0;
conf->ghost_delay = DEFAULT_GHOST_DELAY;
conf->all_tg_pt = DEFAULT_ALL_TG_PT;
diff --git a/libmultipath/structs.h b/libmultipath/structs.h
index 8c2d7131..d2ad4867 100644
--- a/libmultipath/structs.h
+++ b/libmultipath/structs.h
@@ -168,7 +168,6 @@ enum queue_mode_states {
};
enum auto_resize_state {
- AUTO_RESIZE_UNDEF = 0,
AUTO_RESIZE_NEVER,
AUTO_RESIZE_GROW_ONLY,
AUTO_RESIZE_GROW_SHRINK,

28
SOURCES/0107-libmultipath-fix-displaying-auto_resize-config-setti.patch Normal file
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@ -0,0 +1,28 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 26 Jan 2024 15:40:42 -0500
Subject: [PATCH] libmultipath: fix displaying auto_resize config setting
When 56476ebd3 ("multipathd: fix auto-resize configuration") removed
AUTO_RESIZE_UNDEFINED, it didn't update print_auto_resize() to print
a value for when it was set to 0 (which is now AUTO_RESIZE_NEVER).
Fixes: 56476ebd3 ("multipathd: fix auto-resize configuration")
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index c4db60df..ce1b6c99 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -1763,8 +1763,6 @@ def_auto_resize_handler(struct config *conf, vector strvec, const char *file,
int
print_auto_resize(struct strbuf *buff, long v)
{
- if (!v)
- return 0;
return append_strbuf_quoted(buff,
v == AUTO_RESIZE_GROW_ONLY ? "grow_only" :
v == AUTO_RESIZE_GROW_SHRINK ? "grow_shrink" :

71
SPECS/device-mapper-multipath.spec
View File

@ -1,6 +1,6 @@
Name: device-mapper-multipath
Version: 0.8.7
Release: 22%{?dist}
Release: 27%{?dist}
Summary: Tools to manage multipath devices using device-mapper
License: GPLv2
URL: http://christophe.varoqui.free.fr/
@ -100,7 +100,23 @@ Patch0087: 0087-multipathd-handle-no-active-paths-in-update_map_pr.patch
Patch0088: 0088-libmpathpersist-fix-resource-leak-in-update_map_pr.patch
Patch0089: 0089-RH-Add-mpathcleanup.patch
Patch0090: 0090-RH-make-listing-return-an-error-if-the-config-file-i.patch
Patch0091: 0091-multipathd-Added-support-to-handle-FPIN-Li-events-fo.patch
Patch0092: 0092-multipath-tools-add-HPE-Alletra-9000-NVMe-to-hardwar.patch
Patch0093: 0093-RH-multipath-add-mpathcleanup-man-page.patch
Patch0094: 0094-libmultipath-Add-max_retries-config-option.patch
Patch0095: 0095-libmutipath-Retain-device-size-if-sysfs_get_size-fai.patch
Patch0096: 0096-multipathd-check-and-update-all-paths-when-in-cli_re.patch
Patch0097: 0097-multipathd-move-post-reloading-commands-into-resize_.patch
Patch0098: 0098-multipathd-move-resize_map-to-multipathd-main.c.patch
Patch0099: 0099-multipathd-Add-auto_resize-config-option.patch
Patch0100: 0100-libmultipath-avoid-temporarily-enabling-queueing-on-.patch
Patch0101: 0101-multipathd-Make-sure-to-disable-queueing-if-recovery.patch
Patch0102: 0102-multipathd-remove-nopath-flushing-code-from-flush_ma.patch
Patch0103: 0103-multipathd-make-flush_map-delete-maps-like-the-multi.patch
Patch0104: 0104-multipathd-disable-queueing-when-removing-unknown-ma.patch
Patch0105: 0105-multipathd-fix-null-pointer-dereference-in-uev_updat.patch
Patch0106: 0106-multipathd-fix-auto-resize-configuration.patch
Patch0107: 0107-libmultipath-fix-displaying-auto_resize-config-setti.patch
# runtime
@ -243,6 +259,7 @@ fi
%{_mandir}/man8/multipath.8.gz
%{_mandir}/man8/multipathd.8.gz
%{_mandir}/man8/mpathconf.8.gz
%{_mandir}/man8/mpathcleanup.8.gz
%{_mandir}/man8/mpathpersist.8.gz
%config %{_udevrulesdir}/62-multipath.rules
%config %{_udevrulesdir}/11-dm-mpath.rules
@ -303,6 +320,56 @@ fi
%{_pkgconfdir}/libdmmp.pc
%changelog
* Fri Jan 26 2024 Benjamin Marzinski <bmarzins@redhat.com> - 0.8.7-27
- Add 0105-multipathd-fix-null-pointer-dereference-in-uev_updat.patch
- Add 0106-multipathd-fix-auto-resize-configuration.patch
- Add 0107-libmultipath-fix-displaying-auto_resize-config-setti.patch
* Fixes RHEL-986 ("Add option to allow multipathd to detect device
resizes and autoresize.")
- Resolves: RHEL-986
* Wed Jan 3 2024 Benjamin Marzinski <bmarzins@redhat.com> - 0.8.7-26
- Add 0100-libmultipath-avoid-temporarily-enabling-queueing-on-.patch
- Add 0101-multipathd-Make-sure-to-disable-queueing-if-recovery.patch
* Fixes RHEL-17234 ("RHEL9 dm-multipath no_path_retry [retry number] is
undone if paths are later lost for an open map.")
- Add 0102-multipathd-remove-nopath-flushing-code-from-flush_ma.patch
- Add 0103-multipathd-make-flush_map-delete-maps-like-the-multi.patch
- Add 0104-multipathd-disable-queueing-when-removing-unknown-ma.patch
* Fixes RHEL-4998 ("When remove external lun from host, rescan lun status
will cause the OS hang and no response")
- Resolves: RHEL-4998
- Resolves: RHEL-17234
* Mon Nov 20 2023 Benjamin Marzinski <bmarzins@redhat.com> - 0.8.7-25
- Add 0094-libmultipath-Add-max_retries-config-option.patch
* Fixes RHEL-1729 ("Allow multipathd to set the max_retries of the
scsi_device for paths")
- Add 0095-libmutipath-Retain-device-size-if-sysfs_get_size-fai.patch
- Add 0096-multipathd-check-and-update-all-paths-when-in-cli_re.patch
- Add 0097-multipathd-move-post-reloading-commands-into-resize_.patch
- Add 0098-multipathd-move-resize_map-to-multipathd-main.c.patch
- Add 0099-multipathd-Add-auto_resize-config-option.patch
* Fixes RHEL-986 ("Add option to allow multipathd to detect device
resizes and autoresize.")
- Resolves: RHEL-986
- Resolves: RHEL-1729
* Fri Nov 3 2023 Benjamin Marzinski <bmarzins@redhat.com> - 0.8.7-24
- Add 0093-RH-multipath-add-mpathcleanup-man-page.patch
* Fixes RHEL-1266 ("There is no man page for mpathcleanup")
- Resolves: RHEL-1266
* Wed Nov 1 2023 Benjamin Marzinski <bmarzins@redhat.com> - 0.8.7-23
- Add 0091-multipathd-Added-support-to-handle-FPIN-Li-events-fo.patch
* Fixes RHEL-6678 (Add support in multipathd for NVMe to listen for FPIN-Li
events and mark effected paths as marginal)
- Add 0092-multipath-tools-add-HPE-Alletra-9000-NVMe-to-hardwar.patch
* Fixes RHEL-1830 (Changes to Arcus NVMeoFC multipath.conf settings for RHEL
9.x to be included in kernel by default)
- Resolves: RHEL-6678
- Resolves: RHEL-1830
* Fri Jul 28 2023 Benjamin Marzinski <bmarzins@redhat.com> - 0.8.7-22
- Add 0089-RH-Add-mpathcleanup.patch
* Fixes RHEL-782