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authorChristof Schmitt <christof.schmitt@de.ibm.com>2009-05-15 13:18:21 +0200
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-05-23 15:44:16 -0500
commit6fcf41d1d8796f41b893754324704e23971c2ea1 (patch)
treeba3ba8c6bb0d4620be81859653b08d9128d77f56 /drivers/s390
parentea460a81919f2b3410e7fb30183c0256d068d87a (diff)
downloadlinux-next-6fcf41d1d8796f41b893754324704e23971c2ea1.tar.gz
[SCSI] zfcp: Keep ccw device and model id in zfcp_ccw.c
Keep the information about the device and model id in zfcp_ccw. This requires an additional helper function to check for the privileged cfdc subchannel, but it allows the removal of the redundant defines from the zfcp_def header file. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c26
-rw-r--r--drivers/s390/scsi/zfcp_def.h7
-rw-r--r--drivers/s390/scsi/zfcp_ext.h1
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c2
4 files changed, 20 insertions, 16 deletions
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 4f19b28e187f..b2fe5cdbcaee 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -11,6 +11,24 @@
#include "zfcp_ext.h"
+#define ZFCP_MODEL_PRIV 0x4
+
+static struct ccw_device_id zfcp_ccw_device_id[] = {
+ { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
+ { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, ZFCP_MODEL_PRIV) },
+ {},
+};
+MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
+
+/**
+ * zfcp_ccw_priv_sch - check if subchannel is privileged
+ * @adapter: Adapter/Subchannel to check
+ */
+int zfcp_ccw_priv_sch(struct zfcp_adapter *adapter)
+{
+ return adapter->ccw_device->id.dev_model == ZFCP_MODEL_PRIV;
+}
+
/**
* zfcp_ccw_probe - probe function of zfcp driver
* @ccw_device: pointer to belonging ccw device
@@ -199,14 +217,6 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
up(&zfcp_data.config_sema);
}
-static struct ccw_device_id zfcp_ccw_device_id[] = {
- { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
- { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x4) }, /* priv. */
- {},
-};
-
-MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
-
static struct ccw_driver zfcp_ccw_driver = {
.owner = THIS_MODULE,
.name = "zfcp",
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 4c362a9069f0..2074d45dbf6c 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -47,13 +47,6 @@
/********************* CIO/QDIO SPECIFIC DEFINES *****************************/
-/* Adapter Identification Parameters */
-#define ZFCP_CONTROL_UNIT_TYPE 0x1731
-#define ZFCP_CONTROL_UNIT_MODEL 0x03
-#define ZFCP_DEVICE_TYPE 0x1732
-#define ZFCP_DEVICE_MODEL 0x03
-#define ZFCP_DEVICE_MODEL_PRIV 0x04
-
/* DMQ bug workaround: don't use last SBALE */
#define ZFCP_MAX_SBALES_PER_SBAL (QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index 2e31b536548c..120a9a1c81f7 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -27,6 +27,7 @@ extern int zfcp_sg_setup_table(struct scatterlist *, int);
/* zfcp_ccw.c */
extern int zfcp_ccw_register(void);
+extern int zfcp_ccw_priv_sch(struct zfcp_adapter *);
extern struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
/* zfcp_cfdc.c */
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 6fae2688fede..e6dae3744e79 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -1887,7 +1887,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) &&
(adapter->adapter_features & FSF_FEATURE_LUN_SHARING) &&
- (adapter->ccw_device->id.dev_model != ZFCP_DEVICE_MODEL_PRIV)) {
+ !zfcp_ccw_priv_sch(adapter)) {
exclusive = (bottom->lun_access_info &
FSF_UNIT_ACCESS_EXCLUSIVE);
readwrite = (bottom->lun_access_info &