[S390]: Adapt special message interface to new IUCV API

Adapt special message interface to new IUCV API

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 74 insertions, 73 deletions

diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index b8179c27ceb6..3ccca5871fdf 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -1,7 +1,7 @@
 /*
  * IUCV special message driver
  *
- * Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
  * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
  *
  * This program is free software; you can redistribute it and/or modify
@@ -23,10 +23,10 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/device.h>
+#include <net/iucv/iucv.h>
 #include <asm/cpcmd.h>
 #include <asm/ebcdic.h>
-
-#include "iucv.h"
+#include "smsgiucv.h"
 
 struct smsg_callback {
         struct list_head list;
@@ -39,38 +39,46 @@ MODULE_AUTHOR
    ("(C) 2003 IBM Corporation by Martin Schwidefsky (schwidefsky@de.ibm.com)");
 MODULE_DESCRIPTION ("Linux for S/390 IUCV special message driver");
 
-static iucv_handle_t smsg_handle;
-static unsigned short smsg_pathid;
+static struct iucv_path *smsg_path;
+
 static DEFINE_SPINLOCK(smsg_list_lock);
 static struct list_head smsg_list = LIST_HEAD_INIT(smsg_list);
 
-static void
-smsg_connection_complete(iucv_ConnectionComplete *eib, void *pgm_data)
+static int smsg_path_pending(struct iucv_path *, u8 ipvmid[8], u8 ipuser[16]);
+static void smsg_message_pending(struct iucv_path *, struct iucv_message *);
+
+static struct iucv_handler smsg_handler = {
+        .path_pending    = smsg_path_pending,
+        .message_pending = smsg_message_pending,
+};
+
+static int smsg_path_pending(struct iucv_path *path, u8 ipvmid[8],
+                             u8 ipuser[16])
 {
+        if (strncmp(ipvmid, "*MSG    ", sizeof(ipvmid)) != 0)
+                return -EINVAL;
+        /* Path pending from *MSG. */
+        return iucv_path_accept(path, &smsg_handler, "SMSGIUCV        ", NULL);
 }
 
-
-static void
-smsg_message_pending(iucv_MessagePending *eib, void *pgm_data)
+static void smsg_message_pending(struct iucv_path *path,
+                                 struct iucv_message *msg)
 {
         struct smsg_callback *cb;
-        unsigned char *msg;
+        unsigned char *buffer;
         unsigned char sender[9];
-        unsigned short len;
         int rc, i;
 
-        len = eib->ln1msg2.ipbfln1f;
-        msg = kmalloc(len + 1, GFP_ATOMIC|GFP_DMA);
-        if (!msg) {
-                iucv_reject(eib->ippathid, eib->ipmsgid, eib->iptrgcls);
+        buffer = kmalloc(msg->length + 1, GFP_ATOMIC | GFP_DMA);
+        if (!buffer) {
+                iucv_message_reject(path, msg);
                 return;
         }
-        rc = iucv_receive(eib->ippathid, eib->ipmsgid, eib->iptrgcls,
-                          msg, len, NULL, NULL, NULL);
+        rc = iucv_message_receive(path, msg, 0, buffer, msg->length, NULL);
         if (rc == 0) {
-                msg[len] = 0;
-                EBCASC(msg, len);
-                memcpy(sender, msg, 8);
+                buffer[msg->length] = 0;
+                EBCASC(buffer, msg->length);
+                memcpy(sender, buffer, 8);
                 sender[8] = 0;
                 /* Remove trailing whitespace from the sender name. */
                 for (i = 7; i >= 0; i--) {
@@ -80,27 +88,17 @@ smsg_message_pending(iucv_MessagePending *eib, void *pgm_data)
                 }
                 spin_lock(&smsg_list_lock);
                 list_for_each_entry(cb, &smsg_list, list)
-                        if (strncmp(msg + 8, cb->prefix, cb->len) == 0) {
-                                cb->callback(sender, msg + 8);
+                        if (strncmp(buffer + 8, cb->prefix, cb->len) == 0) {
+                                cb->callback(sender, buffer + 8);
                                 break;
                         }
                 spin_unlock(&smsg_list_lock);
         }
-        kfree(msg);
+        kfree(buffer);
 }
 
-static iucv_interrupt_ops_t smsg_ops = {
-        .ConnectionComplete = smsg_connection_complete,
-        .MessagePending     = smsg_message_pending,
-};
-
-static struct device_driver smsg_driver = {
-        .name = "SMSGIUCV",
-        .bus  = &iucv_bus,
-};
-
-int
-smsg_register_callback(char *prefix, void (*callback)(char *from, char *str))
+int smsg_register_callback(char *prefix,
+                           void (*callback)(char *from, char *str))
 {
         struct smsg_callback *cb;
 
@@ -110,18 +108,18 @@ smsg_register_callback(char *prefix, void (*callback)(char *from, char *str))
         cb->prefix = prefix;
         cb->len = strlen(prefix);
         cb->callback = callback;
-        spin_lock(&smsg_list_lock);
+        spin_lock_bh(&smsg_list_lock);
         list_add_tail(&cb->list, &smsg_list);
-        spin_unlock(&smsg_list_lock);
+        spin_unlock_bh(&smsg_list_lock);
         return 0;
 }
 
-void
-smsg_unregister_callback(char *prefix, void (*callback)(char *from, char *str))
+void smsg_unregister_callback(char *prefix,
+                              void (*callback)(char *from, char *str))
 {
         struct smsg_callback *cb, *tmp;
 
-        spin_lock(&smsg_list_lock);
+        spin_lock_bh(&smsg_list_lock);
         cb = NULL;
         list_for_each_entry(tmp, &smsg_list, list)
                 if (tmp->callback == callback &&
@@ -130,55 +128,58 @@ smsg_unregister_callback(char *prefix, void (*callback)(char *from, char *str))
                         list_del(&cb->list);
                         break;
                 }
-        spin_unlock(&smsg_list_lock);
+        spin_unlock_bh(&smsg_list_lock);
         kfree(cb);
 }
 
-static void __exit
-smsg_exit(void)
+static struct device_driver smsg_driver = {
+        .name = "SMSGIUCV",
+        .bus  = &iucv_bus,
+};
+
+static void __exit smsg_exit(void)
 {
-        if (smsg_handle > 0) {
-                cpcmd("SET SMSG OFF", NULL, 0, NULL);
-                iucv_sever(smsg_pathid, NULL);
-                iucv_unregister_program(smsg_handle);
-                driver_unregister(&smsg_driver);
-        }
-        return;
+        cpcmd("SET SMSG IUCV", NULL, 0, NULL);
+        iucv_unregister(&smsg_handler, 1);
+        driver_unregister(&smsg_driver);
 }
 
-static int __init
-smsg_init(void)
+static int __init smsg_init(void)
 {
-        static unsigned char pgmmask[24] = {
-                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-        };
         int rc;
 
         rc = driver_register(&smsg_driver);
-        if (rc != 0) {
-                printk(KERN_ERR "SMSGIUCV: failed to register driver.\n");
-                return rc;
-        }
-        smsg_handle = iucv_register_program("SMSGIUCV        ", "*MSG    ",
-                                            pgmmask, &smsg_ops, NULL);
-        if (!smsg_handle) {
+        if (rc != 0)
+                goto out;
+        rc = iucv_register(&smsg_handler, 1);
+        if (rc) {
                 printk(KERN_ERR "SMSGIUCV: failed to register to iucv");
-                driver_unregister(&smsg_driver);
-                return -EIO;    /* better errno ? */
+                rc = -EIO;      /* better errno ? */
+                goto out_driver;
+        }
+        smsg_path = iucv_path_alloc(255, 0, GFP_KERNEL);
+        if (!smsg_path) {
+                rc = -ENOMEM;
+                goto out_register;
         }
-        rc = iucv_connect (&smsg_pathid, 255, NULL, "*MSG    ", NULL, 0,
-                           NULL, NULL, smsg_handle, NULL);
+        rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG    ",
+                               NULL, NULL, NULL);
         if (rc) {
                 printk(KERN_ERR "SMSGIUCV: failed to connect to *MSG");
-                iucv_unregister_program(smsg_handle);
-                driver_unregister(&smsg_driver);
-                smsg_handle = NULL;
-                return -EIO;
+                rc = -EIO;      /* better errno ? */
+                goto out_free;
         }
         cpcmd("SET SMSG IUCV", NULL, 0, NULL);
         return 0;
+
+out_free:
+        iucv_path_free(smsg_path);
+out_register:
+        iucv_unregister(&smsg_handler, 1);
+out_driver:
+        driver_unregister(&smsg_driver);
+out:
+        return rc;
 }
 
 module_init(smsg_init);