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From: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
To: jejb@kernel.org, JBottomley@Parallels.com
Cc: linux-scsi@vger.kernel.org, Sathya.Prakash@lsi.com,
	Nagalakshmi.Nandigama@lsi.com, Sreekanth.Reddy@lsi.com
Subject: [PATCH 2/8][SCSI] mpt2sas: Change in MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED notification methodology
Date: Thu, 25 Jul 2013 11:25:57 +0530	[thread overview]
Message-ID: <20130725055557.GA29883@lsi.com> (raw)

The intent of this patch is to perform a graceful shutdown of target drives even if
volume doesn't exits. Changes done in this patch

1. Removed the check for the presence of volumes before sending down
   MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED. Therefore, this RAID action
   would be sent if the card is IR Firmware.

2. The MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED is sent even when the
   system undergoes suspend (in addition to remove/shutdown which was already
   present)

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
---
 drivers/scsi/mpt2sas/mpt2sas_scsih.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 344db2e..75e6812 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -7710,10 +7710,6 @@ _scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
 	if (!ioc->ir_firmware)
 		return;
 
-	/* are there any volumes ? */
-	if (list_empty(&ioc->raid_device_list))
-		return;
-
 	mutex_lock(&ioc->scsih_cmds.mutex);
 
 	if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
@@ -8279,6 +8275,7 @@ _scsih_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	mpt2sas_base_stop_watchdog(ioc);
 	scsi_block_requests(shost);
+	_scsih_ir_shutdown(ioc);
 	device_state = pci_choose_state(pdev, state);
 	printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
 	    "operating state [D%d]\n", ioc->name, pdev,
-- 
1.7.3



                 reply	other threads:[~2013-07-25  5:56 UTC|newest]

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