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path: root/drivers/s390/scsi/zfcp_qdio.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.c')
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 26702b56a7ab..3a7f3374d10a 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -4,7 +4,7 @@
*
* Setup and helper functions to access QDIO.
*
- * Copyright IBM Corp. 2002, 2017
+ * Copyright IBM Corp. 2002, 2020
*/
#define KMSG_COMPONENT "zfcp"
@@ -342,6 +342,18 @@ void zfcp_qdio_close(struct zfcp_qdio *qdio)
atomic_set(&qdio->req_q_free, 0);
}
+void zfcp_qdio_shost_update(struct zfcp_adapter *const adapter,
+ const struct zfcp_qdio *const qdio)
+{
+ struct Scsi_Host *const shost = adapter->scsi_host;
+
+ if (shost == NULL)
+ return;
+
+ shost->sg_tablesize = qdio->max_sbale_per_req;
+ shost->max_sectors = qdio->max_sbale_per_req * 8;
+}
+
/**
* zfcp_qdio_open - prepare and initialize response queue
* @qdio: pointer to struct zfcp_qdio
@@ -420,10 +432,7 @@ int zfcp_qdio_open(struct zfcp_qdio *qdio)
atomic_set(&qdio->req_q_free, QDIO_MAX_BUFFERS_PER_Q);
atomic_or(ZFCP_STATUS_ADAPTER_QDIOUP, &qdio->adapter->status);
- if (adapter->scsi_host) {
- adapter->scsi_host->sg_tablesize = qdio->max_sbale_per_req;
- adapter->scsi_host->max_sectors = qdio->max_sbale_per_req * 8;
- }
+ zfcp_qdio_shost_update(adapter, qdio);
return 0;