[SCSI] zfcp: provide support for NPIV

N_Port ID Virtualization (NPIV) allows a single FCP port to appear as
multiple, distinct ports providing separate port identification. NPIV
is supported by FC HBAs on System z9. zfcp was adapted to support this
new feature.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index fc5bb6f31808..4b6af8e07e8d 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -66,7 +66,7 @@
 /********************* GENERAL DEFINES *********************************/
 
 /* zfcp version number, it consists of major, minor, and patch-level number */
-#define ZFCP_VERSION            "4.4.0"
+#define ZFCP_VERSION            "4.5.0"
 
 /**
  * zfcp_sg_to_address - determine kernel address from struct scatterlist
@@ -154,6 +154,11 @@ typedef u32 scsi_lun_t;
 #define ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP   100
 #define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES       7
 
+/* Retry 5 times every 2 second, then every minute */
+#define ZFCP_EXCHANGE_PORT_DATA_SHORT_RETRIES   5
+#define ZFCP_EXCHANGE_PORT_DATA_SHORT_SLEEP     200
+#define ZFCP_EXCHANGE_PORT_DATA_LONG_SLEEP      6000
+
 /* timeout value for "default timer" for fsf requests */
 #define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ);
 
@@ -638,6 +643,7 @@ do { \
 #define ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL     0x00000080
 #define ZFCP_STATUS_ADAPTER_ERP_PENDING         0x00000100
 #define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED      0x00000200
+#define ZFCP_STATUS_ADAPTER_XPORT_OK            0x00000800
 
 #define ZFCP_STATUS_ADAPTER_SCSI_UP                     \
                 (ZFCP_STATUS_COMMON_UNBLOCKED | \
@@ -915,13 +921,16 @@ struct zfcp_adapter {
         wwn_t                   peer_wwnn;         /* P2P peer WWNN */
         wwn_t                   peer_wwpn;         /* P2P peer WWPN */
         fc_id_t                 peer_d_id;         /* P2P peer D_ID */
+        wwn_t                   physical_wwpn;     /* WWPN of physical port */
+        fc_id_t                 physical_s_id;     /* local FC port ID */
         struct ccw_device       *ccw_device;       /* S/390 ccw device */
         u8                      fc_service_class;
         u32                     fc_topology;       /* FC topology */
         u32                     fc_link_speed;     /* FC interface speed */
         u32                     hydra_version;     /* Hydra version */
         u32                     fsf_lic_version;
-        u32                     supported_features;/* of FCP channel */
+        u32                     adapter_features;  /* FCP channel features */
+        u32                     connection_features; /* host connection features */
         u32                     hardware_version;  /* of FCP channel */
         u8                      serial_number[32]; /* of hardware */
         struct Scsi_Host        *scsi_host;        /* Pointer to mid-layer */