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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 12-01-2011, 07:01 PM
"Moger, Babu"
 
Default scsi_dh_emc: Adding the match function for emc device handler

This patch introduces the match function for emc device handler.
Included check for TPGS bit before proceeding further.
The match function was introduced by this patch
http://www.spinics.net/lists/linux-scsi/msg54284.html

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Acked-by: Hannes Reinecke <hare@suse.de>
---
--- linux-3.2-rc2/drivers/scsi/device_handler/scsi_dh_emc.c.orig 2011-11-15 11:02:59.000000000 -0600
+++ linux-3.2-rc2/drivers/scsi/device_handler/scsi_dh_emc.c 2011-11-19 10:46:12.000000000 -0600
@@ -629,6 +629,24 @@ static const struct scsi_dh_devlist clar
{NULL, NULL},
};

+static bool clariion_match(struct scsi_device *sdev)
+{
+ int i;
+
+ if (scsi_device_tpgs(sdev))
+ return false;
+
+ for (i = 0; clariion_dev_list[i].vendor; i++) {
+ if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor,
+ strlen(clariion_dev_list[i].vendor)) &&
+ !strncmp(sdev->model, clariion_dev_list[i].model,
+ strlen(clariion_dev_list[i].model))) {
+ return true;
+ }
+ }
+ return false;
+}
+
static int clariion_bus_attach(struct scsi_device *sdev);
static void clariion_bus_detach(struct scsi_device *sdev);

@@ -642,6 +660,7 @@ static struct scsi_device_handler clarii
.activate = clariion_activate,
.prep_fn = clariion_prep_fn,
.set_params = clariion_set_params,
+ .match = clariion_match,
};

static int clariion_bus_attach(struct scsi_device *sdev)



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