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authorJohn Garry <john.garry@huawei.com>2015-11-18 00:50:55 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2015-11-25 22:13:06 -0500
commit701f75ecd95130ab8a283fe5f44ba963a737d5f7 (patch)
treef61fdd17b59f8ec27fb947e51195d5439b45b8ff /drivers/scsi/hisi_sas
parenthisi_sas: Add smp protocol support (diff)
downloadlinux-dev-701f75ecd95130ab8a283fe5f44ba963a737d5f7.tar.xz
linux-dev-701f75ecd95130ab8a283fe5f44ba963a737d5f7.zip
hisi_sas: Add scan finished and start
Add functions for scsi host template scan_finished and scan_start methods. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas.h1
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_main.c25
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index f34f73b3d64c..15adeca5ddc9 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -156,6 +156,7 @@ struct hisi_hba {
u8 sas_addr[SAS_ADDR_SIZE];
int n_phy;
+ int scan_finished;
spinlock_t lock;
struct timer_list timer;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 406ffa08fc1a..63ebaf3a9263 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -403,6 +403,29 @@ static int hisi_sas_dev_found(struct domain_device *device)
return 0;
}
+static void hisi_sas_scan_start(struct Scsi_Host *shost)
+{
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; ++i)
+ hisi_sas_bytes_dmaed(hisi_hba, i);
+
+ hisi_hba->scan_finished = 1;
+}
+
+static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ struct sas_ha_struct *sha = &hisi_hba->sha;
+
+ if (hisi_hba->scan_finished == 0)
+ return 0;
+
+ sas_drain_work(sha);
+ return 1;
+}
+
static void hisi_sas_phyup_work(struct work_struct *work)
{
struct hisi_sas_phy *phy =
@@ -587,6 +610,8 @@ static struct scsi_host_template hisi_sas_sht = {
.queuecommand = sas_queuecommand,
.target_alloc = sas_target_alloc,
.slave_configure = sas_slave_configure,
+ .scan_finished = hisi_sas_scan_finished,
+ .scan_start = hisi_sas_scan_start,
.change_queue_depth = sas_change_queue_depth,
.bios_param = sas_bios_param,
.can_queue = 1,