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From: chenxiang <chenxiang66@hisilicon.com>
To: <jejb@linux.ibm.com>, <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>, <linuxarm@huawei.com>,
	<john.garry@huawei.com>, Xiang Chen <chenxiang66@hisilicon.com>
Subject: [PATCH v2 10/15] scsi: libsas: Add flag SAS_HA_RESUMING
Date: Mon, 20 Dec 2021 19:21:33 +0800	[thread overview]
Message-ID: <1639999298-244569-11-git-send-email-chenxiang66@hisilicon.com> (raw)
In-Reply-To: <1639999298-244569-1-git-send-email-chenxiang66@hisilicon.com>

From: Xiang Chen <chenxiang66@hisilicon.com>

Add a flag SAS_HA_RESUMING and use it to indicate the state of resuming
the host controller.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: John Garry <john.garry@huawei.com>
---
 drivers/scsi/libsas/sas_init.c | 2 ++
 include/scsi/libsas.h          | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index 974c4a305ece..069e40fc8411 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -362,6 +362,7 @@ void sas_prep_resume_ha(struct sas_ha_struct *ha)
 	int i;
 
 	set_bit(SAS_HA_REGISTERED, &ha->state);
+	set_bit(SAS_HA_RESUMING, &ha->state);
 
 	/* clear out any stale link events/data from the suspension path */
 	for (i = 0; i < ha->num_phys; i++) {
@@ -443,6 +444,7 @@ static void _sas_resume_ha(struct sas_ha_struct *ha, bool drain)
 	scsi_unblock_requests(ha->core.shost);
 	if (drain)
 		sas_drain_work(ha);
+	clear_bit(SAS_HA_RESUMING, &ha->state);
 
 	/* send event PORTE_BROADCAST_RCVD to identify some new inserted
 	 * disks for expander
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index a795a2d9e5b1..698f2032807b 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -356,6 +356,7 @@ enum sas_ha_state {
 	SAS_HA_DRAINING,
 	SAS_HA_ATA_EH_ACTIVE,
 	SAS_HA_FROZEN,
+	SAS_HA_RESUMING,
 };
 
 struct sas_ha_struct {
-- 
2.33.0


  parent reply	other threads:[~2021-12-20 11:27 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-20 11:21 [PATCH v2 00/15] Add runtime PM support for libsas chenxiang
2021-12-20 11:21 ` [PATCH v2 01/15] libsas: Don't always drain event workqueue for HA resume chenxiang
2021-12-20 11:21 ` [PATCH v2 02/15] Revert "scsi: hisi_sas: Filter out new PHY up events during suspend" chenxiang
2021-12-20 11:21 ` [PATCH v2 03/15] scsi/block PM: Always set request queue runtime active in blk_post_runtime_resume() chenxiang
2021-12-20 11:21 ` [PATCH v2 04/15] scsi: libsas: Add spin_lock/unlock() to protect asd_sas_port->phy_list chenxiang
2021-12-20 11:21 ` [PATCH v2 05/15] scsi: hisi_sas: Fix some issues related to asd_sas_port->phy_list chenxiang
2021-12-27 17:25   ` Nathan Chancellor
2021-12-28  2:03     ` chenxiang (M)
2022-01-04 10:02       ` John Garry
2022-01-04 11:38         ` chenxiang (M)
2021-12-20 11:21 ` [PATCH v2 06/15] scsi: mvsas: Add spin_lock/unlock() to protect asd_sas_port->phy_list chenxiang
2021-12-20 11:21 ` [PATCH v2 07/15] scsi: libsas: Insert PORTE_BROADCAST_RCVD event for resuming host chenxiang
2021-12-20 11:21 ` [PATCH v2 08/15] scsi: hisi_sas: Add more logs for runtime suspend/resume chenxiang
2021-12-20 11:21 ` [PATCH v2 09/15] scsi: libsas: Resume host while sending SMP IOs chenxiang
2021-12-20 11:21 ` chenxiang [this message]
2021-12-20 11:21 ` [PATCH v2 11/15] scsi: libsas: Refactor sas_queue_deferred_work() chenxiang
2021-12-20 11:21 ` [PATCH v2 12/15] scsi: libsas: Defer works of new phys during suspend chenxiang
2021-12-20 11:21 ` [PATCH v2 13/15] scsi: hisi_sas: Keep controller active between ISR of phyup and the event being processed chenxiang
2021-12-20 11:21 ` [PATCH v2 14/15] scsi: libsas: Keep host active while processing events chenxiang
2021-12-20 11:21 ` [PATCH v2 15/15] scsi: hisi_sas: Use autosuspend for the host controller chenxiang
2021-12-23  4:39 ` [PATCH v2 00/15] Add runtime PM support for libsas Martin K. Petersen

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