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-   -   scsi_dh_hp_sw: Adding the match function for hp_sw device handler (http://www.linux-archive.org/device-mapper-development/594261-scsi_dh_hp_sw-adding-match-function-hp_sw-device-handler.html)

"Moger, Babu" 11-03-2011 02:51 PM

scsi_dh_hp_sw: Adding the match function for hp_sw device handler
 
This patch introduces the match function for hp_sw device handler.
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>
---

--- linux/drivers/scsi/device_handler/scsi_dh_hp_sw.c.orig 2011-10-31 11:25:07.000000000 -0500
+++ linux/drivers/scsi/device_handler/scsi_dh_hp_sw.c 2011-10-31 12:33:05.000000000 -0500
@@ -319,6 +319,20 @@ static const struct scsi_dh_devlist hp_s
{NULL, NULL},
};

+static bool hp_sw_match(struct scsi_device *sdev)
+{
+ int i;
+ for (i = 0; hp_sw_dh_data_list[i].vendor; i++) {
+ if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor,
+ strlen(hp_sw_dh_data_list[i].vendor)) &&
+ !strncmp(sdev->model, hp_sw_dh_data_list[i].model,
+ strlen(hp_sw_dh_data_list[i].model))) {
+ return true;
+ }
+ }
+ return false;
+}
+
static int hp_sw_bus_attach(struct scsi_device *sdev);
static void hp_sw_bus_detach(struct scsi_device *sdev);

@@ -330,6 +344,7 @@ static struct scsi_device_handler hp_sw_
.detach = hp_sw_bus_detach,
.activate = hp_sw_activate,
.prep_fn = hp_sw_prep_fn,
+ .match = hp_sw_match,
};

static int hp_sw_bus_attach(struct scsi_device *sdev)



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"Moger, Babu" 11-04-2011 12:33 PM

scsi_dh_hp_sw: Adding the match function for hp_sw device handler
 
> -----Original Message-----
> From: Hannes Reinecke [mailto:hare@suse.de]
> Sent: Friday, November 04, 2011 2:33 AM
> To: device-mapper development
> Cc: Moger, Babu; Linux SCSI Mailing list
> Subject: Re: [dm-devel] [RESEND][PATCH 2/4] scsi_dh_hp_sw: Adding the
> match function for hp_sw device handler
>
> Hi Babu,
>
> On 11/03/2011 04:51 PM, Moger, Babu wrote:
> > This patch introduces the match function for hp_sw device handler.
> > 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>
>
> Actually, the old HP MSA has a firmware update which also makes it
> ALUA capable. So we would need to add the check here, too.

Sure.. I will add the TPGS check and resend this patch.. Thanks..

>
> Cheers,
>
> Hannes
> --
> Dr. Hannes Reinecke zSeries & Storage
> hare@suse.de +49 911 74053 688
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
> GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)

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"Moger, Babu" 11-04-2011 12:40 PM

scsi_dh_hp_sw: Adding the match function for hp_sw device handler
 
Resending just this patch after making changes per Hannes comments.

This patch introduces the match function for hp_sw device handler.
Included the 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>
---

--- linux-d211858/drivers/scsi/device_handler/scsi_dh_hp_sw.c.orig 2011-11-02 14:17:29.000000000 -0500
+++ linux-d211858/drivers/scsi/device_handler/scsi_dh_hp_sw.c 2011-11-04 08:22:22.000000000 -0500
@@ -319,6 +319,24 @@ static const struct scsi_dh_devlist hp_s
{NULL, NULL},
};

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

@@ -330,6 +348,7 @@ static struct scsi_device_handler hp_sw_
.detach = hp_sw_bus_detach,
.activate = hp_sw_activate,
.prep_fn = hp_sw_prep_fn,
+ .match = hp_sw_match,
};

static int hp_sw_bus_attach(struct scsi_device *sdev)



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