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Commit 64e155ad authored by Kashyap, Desai's avatar Kashyap, Desai Committed by James Bottomley
Browse files

[SCSI] mptfusion: block device when target is being removed by FW 



Add support to set the sdev state to SDEV_BLOCK during device removal
to stop IOs comming to the deleting driver immediately.

Signed-off-by: default avatarKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent e0f553ab

drivers/message/fusion/mptsas.c

+20 −5
Original line number Diff line number Diff line
@@ -1075,6 +1075,19 @@ mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id) 
	return 0;

}



static void

mptsas_block_io_sdev(struct scsi_device *sdev, void *data)

{

	scsi_device_set_state(sdev, SDEV_BLOCK);

}



static void

mptsas_block_io_starget(struct scsi_target *starget)

{

	if (starget)

		starget_for_each_device(starget, NULL, mptsas_block_io_sdev);

}



/**

 * mptsas_target_reset_queue

 *
@@ -1098,10 +1111,11 @@ mptsas_target_reset_queue(MPT_ADAPTER *ioc, 
	id = sas_event_data->TargetID;

	channel = sas_event_data->Bus;



	if (!(vtarget = mptsas_find_vtarget(ioc, channel, id)))

		return;



	vtarget = mptsas_find_vtarget(ioc, channel, id);

	if (vtarget) {

		mptsas_block_io_starget(vtarget->starget);

		vtarget->deleted = 1; /* block IO */

	}



	target_reset_list = kzalloc(sizeof(struct mptsas_target_reset_event),

	    GFP_ATOMIC);
@@ -1868,7 +1882,8 @@ mptsas_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 
	if (ioc->sas_discovery_quiesce_io)

		return SCSI_MLQUEUE_HOST_BUSY;



//	scsi_print_command(SCpnt);

	if (ioc->debug_level & MPT_DEBUG_SCSI)

		scsi_print_command(SCpnt);



	return mptscsih_qcmd(SCpnt,done);

}