From: Tyrel Datwyler <tyreld@linux.ibm.com>
To: james.bottomley@hansenpartnership.com
Cc: Tyrel Datwyler <tyreld@linux.ibm.com>,
martin.petersen@oracle.com, linux-scsi@vger.kernel.org,
Tyrel Datwyler <tyreld@linux.vnet.ibm.com>,
brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 1/3] ibmvscsi: Wire up host_reset() in the drivers scsi_host_template
Date: Thu, 2 May 2019 19:50:56 -0500 [thread overview]
Message-ID: <20190503005058.8768-1-tyreld@linux.ibm.com> (raw)
From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Wire up the host_reset function in our driver_template to allow a user
requested adpater reset via the host_reset sysfs attribute.
Example:
echo "adapter" > /sys/class/scsi_host/host0/host_reset
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
---
Changes in v2:
removed interrupt disabe/enable around reset
drivers/scsi/ibmvscsi/ibmvscsi.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 8cec5230fe31..65fc8ca962c5 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -2050,6 +2050,16 @@ static struct device_attribute ibmvscsi_host_config = {
.show = show_host_config,
};
+static int ibmvscsi_host_reset(struct Scsi_Host *shost, int reset_type)
+{
+ struct ibmvscsi_host_data *hostdata = shost_priv(shost);
+
+ dev_info(hostdata->dev, "Initiating adapter reset!\n");
+ ibmvscsi_reset_host(hostdata);
+
+ return 0;
+}
+
static struct device_attribute *ibmvscsi_attrs[] = {
&ibmvscsi_host_vhost_loc,
&ibmvscsi_host_vhost_name,
@@ -2076,6 +2086,7 @@ static struct scsi_host_template driver_template = {
.eh_host_reset_handler = ibmvscsi_eh_host_reset_handler,
.slave_configure = ibmvscsi_slave_configure,
.change_queue_depth = ibmvscsi_change_queue_depth,
+ .host_reset = ibmvscsi_host_reset,
.cmd_per_lun = IBMVSCSI_CMDS_PER_LUN_DEFAULT,
.can_queue = IBMVSCSI_MAX_REQUESTS_DEFAULT,
.this_id = -1,
--
2.18.1
next reply other threads:[~2019-05-03 0:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-03 0:50 Tyrel Datwyler [this message]
2019-05-03 0:50 ` [PATCH v2 2/3] ibmvscsi: redo driver work thread to use enum action states Tyrel Datwyler
2019-05-03 0:50 ` [PATCH v2 3/3] ibmvscsi: fix tripping of blk_mq_run_hw_queue WARN_ON Tyrel Datwyler
2019-05-30 1:32 ` [PATCH v2 1/3] ibmvscsi: Wire up host_reset() in the drivers scsi_host_template Martin K. Petersen
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