4 files changed, 47 insertions, 154 deletions

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 1ca73c2e5a8f..c314e9495c1b 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -57,6 +57,7 @@ int chsc_error_from_response(int response)
 	case 0x0104:
 		return -EINVAL;
 	case 0x0004:
+	case 0x0106:		/* "Wrong Channel Parm" for the op 0x003d */
 		return -EOPNOTSUPP;
 	case 0x000b:
 	case 0x0107:		/* "Channel busy" for the op 0x003d */
@@ -1336,36 +1337,35 @@ out:
 EXPORT_SYMBOL_GPL(chsc_scm_info);
 
 /**
- * chsc_pnso_brinfo() - Perform Network-Subchannel Operation, Bridge Info.
+ * chsc_pnso() - Perform Network-Subchannel Operation
  * @schid:		id of the subchannel on which PNSO is performed
- * @brinfo_area:	request and response block for the operation
+ * @pnso_area:		request and response block for the operation
  * @resume_token:	resume token for multiblock response
  * @cnc:		Boolean change-notification control
  *
- * brinfo_area must be allocated by the caller with get_zeroed_page(GFP_KERNEL)
+ * pnso_area must be allocated by the caller with get_zeroed_page(GFP_KERNEL)
  *
  * Returns 0 on success.
  */
-int chsc_pnso_brinfo(struct subchannel_id schid,
-		struct chsc_pnso_area *brinfo_area,
-		struct chsc_brinfo_resume_token resume_token,
-		int cnc)
+int chsc_pnso(struct subchannel_id schid,
+	      struct chsc_pnso_area *pnso_area,
+	      struct chsc_pnso_resume_token resume_token,
+	      int cnc)
 {
-	memset(brinfo_area, 0, sizeof(*brinfo_area));
-	brinfo_area->request.length = 0x0030;
-	brinfo_area->request.code = 0x003d; /* network-subchannel operation */
-	brinfo_area->m	   = schid.m;
-	brinfo_area->ssid  = schid.ssid;
-	brinfo_area->sch   = schid.sch_no;
-	brinfo_area->cssid = schid.cssid;
-	brinfo_area->oc    = 0; /* Store-network-bridging-information list */
-	brinfo_area->resume_token = resume_token;
-	brinfo_area->n	   = (cnc != 0);
-	if (chsc(brinfo_area))
+	memset(pnso_area, 0, sizeof(*pnso_area));
+	pnso_area->request.length = 0x0030;
+	pnso_area->request.code = 0x003d; /* network-subchannel operation */
+	pnso_area->m	   = schid.m;
+	pnso_area->ssid  = schid.ssid;
+	pnso_area->sch	 = schid.sch_no;
+	pnso_area->cssid = schid.cssid;
+	pnso_area->oc	 = 0; /* Store-network-bridging-information list */
+	pnso_area->resume_token = resume_token;
+	pnso_area->n	   = (cnc != 0);
+	if (chsc(pnso_area))
 		return -EIO;
-	return chsc_error_from_response(brinfo_area->response.code);
+	return chsc_error_from_response(pnso_area->response.code);
 }
-EXPORT_SYMBOL_GPL(chsc_pnso_brinfo);
 
 int chsc_sgib(u32 origin)
 {
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 34de6d77442c..7ecf7e4c402e 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -205,52 +205,10 @@ struct chsc_scm_info {
 
 int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
 
-struct chsc_brinfo_resume_token {
-	u64 t1;
-	u64 t2;
-} __packed;
-
-struct chsc_brinfo_naihdr {
-	struct chsc_brinfo_resume_token resume_token;
-	u32:32;
-	u32 instance;
-	u32:24;
-	u8 naids;
-	u32 reserved[3];
-} __packed;
-
-struct chsc_pnso_area {
-	struct chsc_header request;
-	u8:2;
-	u8 m:1;
-	u8:5;
-	u8:2;
-	u8 ssid:2;
-	u8 fmt:4;
-	u16 sch;
-	u8:8;
-	u8 cssid;
-	u16:16;
-	u8 oc;
-	u32:24;
-	struct chsc_brinfo_resume_token resume_token;
-	u32 n:1;
-	u32:31;
-	u32 reserved[3];
-	struct chsc_header response;
-	u32:32;
-	struct chsc_brinfo_naihdr naihdr;
-	union {
-		struct qdio_brinfo_entry_l3_ipv6 l3_ipv6[0];
-		struct qdio_brinfo_entry_l3_ipv4 l3_ipv4[0];
-		struct qdio_brinfo_entry_l2	 l2[0];
-	} entries;
-} __packed __aligned(PAGE_SIZE);
-
-int chsc_pnso_brinfo(struct subchannel_id schid,
-		struct chsc_pnso_area *brinfo_area,
-		struct chsc_brinfo_resume_token resume_token,
-		int cnc);
+int chsc_pnso(struct subchannel_id schid,
+	      struct chsc_pnso_area *pnso_area,
+	      struct chsc_pnso_resume_token resume_token,
+	      int cnc);
 
 int __init chsc_get_cssid(int idx);
 
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index ccecf6b9504e..963fcc9054c6 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -710,6 +710,29 @@ void ccw_device_get_schid(struct ccw_device *cdev, struct subchannel_id *schid)
 }
 EXPORT_SYMBOL_GPL(ccw_device_get_schid);
 
+/**
+ * ccw_device_pnso() - Perform Network-Subchannel Operation
+ * @cdev:		device on which PNSO is performed
+ * @pnso_area:		request and response block for the operation
+ * @resume_token:	resume token for multiblock response
+ * @cnc:		Boolean change-notification control
+ *
+ * pnso_area must be allocated by the caller with get_zeroed_page(GFP_KERNEL)
+ *
+ * Returns 0 on success.
+ */
+int ccw_device_pnso(struct ccw_device *cdev,
+		    struct chsc_pnso_area *pnso_area,
+		    struct chsc_pnso_resume_token resume_token,
+		    int cnc)
+{
+	struct subchannel_id schid;
+
+	ccw_device_get_schid(cdev, &schid);
+	return chsc_pnso(schid, pnso_area, resume_token, cnc);
+}
+EXPORT_SYMBOL_GPL(ccw_device_pnso);
+
 /*
  * Allocate zeroed dma coherent 31 bit addressable memory using
  * the subchannels dma pool. Maximal size of allocation supported
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index b0e84fba54dd..610c05f59589 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1705,94 +1705,6 @@ int qdio_stop_irq(struct ccw_device *cdev)
 }
 EXPORT_SYMBOL(qdio_stop_irq);
 
-/**
- * qdio_pnso_brinfo() - perform network subchannel op #0 - bridge info.
- * @schid:		Subchannel ID.
- * @cnc:		Boolean Change-Notification Control
- * @response:		Response code will be stored at this address
- * @cb: 		Callback function will be executed for each element
- *			of the address list
- * @priv:		Pointer to pass to the callback function.
- *
- * Performs "Store-network-bridging-information list" operation and calls
- * the callback function for every entry in the list. If "change-
- * notification-control" is set, further changes in the address list
- * will be reported via the IPA command.
- */
-int qdio_pnso_brinfo(struct subchannel_id schid,
-		int cnc, u16 *response,
-		void (*cb)(void *priv, enum qdio_brinfo_entry_type type,
-				void *entry),
-		void *priv)
-{
-	struct chsc_pnso_area *rr;
-	int rc;
-	u32 prev_instance = 0;
-	int isfirstblock = 1;
-	int i, size, elems;
-
-	rr = (struct chsc_pnso_area *)get_zeroed_page(GFP_KERNEL);
-	if (rr == NULL)
-		return -ENOMEM;
-	do {
-		/* on the first iteration, naihdr.resume_token will be zero */
-		rc = chsc_pnso_brinfo(schid, rr, rr->naihdr.resume_token, cnc);
-		if (rc != 0 && rc != -EBUSY)
-			goto out;
-		if (rr->response.code != 1) {
-			rc = -EIO;
-			continue;
-		} else
-			rc = 0;
-
-		if (cb == NULL)
-			continue;
-
-		size = rr->naihdr.naids;
-		elems = (rr->response.length -
-				sizeof(struct chsc_header) -
-				sizeof(struct chsc_brinfo_naihdr)) /
-				size;
-
-		if (!isfirstblock && (rr->naihdr.instance != prev_instance)) {
-			/* Inform the caller that they need to scrap */
-			/* the data that was already reported via cb */
-				rc = -EAGAIN;
-				break;
-		}
-		isfirstblock = 0;
-		prev_instance = rr->naihdr.instance;
-		for (i = 0; i < elems; i++)
-			switch (size) {
-			case sizeof(struct qdio_brinfo_entry_l3_ipv6):
-				(*cb)(priv, l3_ipv6_addr,
-						&rr->entries.l3_ipv6[i]);
-				break;
-			case sizeof(struct qdio_brinfo_entry_l3_ipv4):
-				(*cb)(priv, l3_ipv4_addr,
-						&rr->entries.l3_ipv4[i]);
-				break;
-			case sizeof(struct qdio_brinfo_entry_l2):
-				(*cb)(priv, l2_addr_lnid,
-						&rr->entries.l2[i]);
-				break;
-			default:
-				WARN_ON_ONCE(1);
-				rc = -EIO;
-				goto out;
-			}
-	} while (rr->response.code == 0x0107 ||  /* channel busy */
-		  (rr->response.code == 1 && /* list stored */
-		   /* resume token is non-zero => list incomplete */
-		   (rr->naihdr.resume_token.t1 || rr->naihdr.resume_token.t2)));
-	(*response) = rr->response.code;
-
-out:
-	free_page((unsigned long)rr);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(qdio_pnso_brinfo);
-
 static int __init init_QDIO(void)
 {
 	int rc;