From: Daniel Wagner <dwagner@suse.de>
To: Arun Easi <aeasi@marvell.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>,
linux-scsi@vger.kernel.org,
GR-QLogic-Storage-Upstream@marvell.com,
linux-nvme@lists.infradead.org, Hannes Reinecke <hare@suse.de>,
Nilesh Javali <njavali@marvell.com>,
James Smart <james.smart@broadcom.com>
Subject: Re: [EXT] Re: [RFC] qla2xxx: Add dev_loss_tmo kernel module options
Date: Tue, 27 Apr 2021 11:51:31 +0200 [thread overview]
Message-ID: <20210427095131.zf6c4siewnrhv7qd@beryllium.lan> (raw)
In-Reply-To: <20210421075659.dwaz7gt6hyqlzpo4@beryllium.lan>
On Wed, Apr 21, 2021 at 09:56:59AM +0200, Daniel Wagner wrote:
> Ah, didn't know about nvmediscovery until very recentetly. I try to get
> it working with this approach (as this patch is not really a proper
> solution).
Finally found some time to play with this. FTR, the nvmediscovery
carries following information:
UDEV [65238.364677] change /devices/virtual/fc/fc_udev_device (fc)
ACTION=change
DEVPATH=/devices/virtual/fc/fc_udev_device
FC_EVENT=nvmediscovery
NVMEFC_HOST_TRADDR=nn-0x20000024ff7fa448:pn-0x21000024ff7fa448
NVMEFC_TRADDR=nn-0x200200a09890f5bf:pn-0x203800a09890f5bf
SEQNUM=12357
SUBSYSTEM=fc
USEC_INITIALIZED=65238333374
The udev rule I came up is:
ACTION=="change", SUBSYSTEM=="fc", ENV{FC_EVENT}=="nvmediscovery", \
ENV{NVMEFC_TRADDR}=="*", \
RUN+="/usr/local/sbin/qla2xxx_dev_loss_tmo.sh $env{NVMEFC_TRADDR} 4294967295"
and the script is:
#!/bin/sh
TRADDR=$1
TMO=$2
id=$(echo $TRADDR | sed -n "s/.*pn-0x\([0-9a-f]\+\)/\1/p")
find /sys/kernel/debug/qla2xxx -name pn-$id -exec /bin/sh -c "echo $TMO > {}/dev_loss_tmo" \;
I am sure this can be done in a more elegant way. Anyway, I am testing
this right now, the first 30 minutes look good...
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next prev parent reply other threads:[~2021-04-27 9:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-19 10:00 [RFC] qla2xxx: Add dev_loss_tmo kernel module options Daniel Wagner
2021-04-19 16:19 ` Randy Dunlap
2021-04-20 12:37 ` Daniel Wagner
2021-04-20 14:51 ` Himanshu Madhani
2021-04-20 15:35 ` Randy Dunlap
2021-04-20 17:27 ` Benjamin Block
2021-04-20 17:35 ` Roman Bolshakov
2021-04-20 18:28 ` Daniel Wagner
2021-04-21 0:25 ` [EXT] " Arun Easi
2021-04-21 7:56 ` Daniel Wagner
2021-04-27 9:51 ` Daniel Wagner [this message]
2021-04-27 22:35 ` Arun Easi
2021-04-28 7:17 ` Daniel Wagner
2021-04-28 14:51 ` James Smart
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