diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/geode-aes.c | 2 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_alb.c | 4 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 4 | ||||
| -rw-r--r-- | drivers/net/slip.c | 5 | ||||
| -rw-r--r-- | drivers/net/tg3.c | 2 | ||||
| -rw-r--r-- | drivers/s390/char/monreader.c | 218 | ||||
| -rw-r--r-- | drivers/s390/char/vmlogrdr.c | 279 | ||||
| -rw-r--r-- | drivers/s390/net/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/s390/net/Makefile | 1 | ||||
| -rw-r--r-- | drivers/s390/net/iucv.c | 2540 | ||||
| -rw-r--r-- | drivers/s390/net/iucv.h | 849 | ||||
| -rw-r--r-- | drivers/s390/net/netiucv.c | 1314 | ||||
| -rw-r--r-- | drivers/s390/net/smsgiucv.c | 147 |
13 files changed, 959 insertions, 4413 deletions
diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c index 43a68398656f..31ea405f2eeb 100644 --- a/drivers/crypto/geode-aes.c +++ b/drivers/crypto/geode-aes.c @@ -457,7 +457,7 @@ static struct pci_driver geode_aes_driver = { static int __init geode_aes_init(void) { - return pci_module_init(&geode_aes_driver); + return pci_register_driver(&geode_aes_driver); } static void __exit diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 32923162179e..217a2eedee0a 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -184,7 +184,7 @@ static int tlb_initialize(struct bonding *bond) spin_lock_init(&(bond_info->tx_hashtbl_lock)); - new_hashtbl = kmalloc(size, GFP_KERNEL); + new_hashtbl = kzalloc(size, GFP_KERNEL); if (!new_hashtbl) { printk(KERN_ERR DRV_NAME ": %s: Error: Failed to allocate TLB hash table\n", @@ -195,8 +195,6 @@ static int tlb_initialize(struct bonding *bond) bond_info->tx_hashtbl = new_hashtbl; - memset(bond_info->tx_hashtbl, 0, size); - for (i = 0; i < TLB_HASH_TABLE_SIZE; i++) { tlb_init_table_entry(&bond_info->tx_hashtbl[i], 1); } diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index d3801a00d3d5..8ce8fec615ba 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1343,14 +1343,12 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) "inaccurate.\n", bond_dev->name, slave_dev->name); } - new_slave = kmalloc(sizeof(struct slave), GFP_KERNEL); + new_slave = kzalloc(sizeof(struct slave), GFP_KERNEL); if (!new_slave) { res = -ENOMEM; goto err_undo_flags; } - memset(new_slave, 0, sizeof(struct slave)); - /* save slave's original flags before calling * netdev_set_master and dev_open */ diff --git a/drivers/net/slip.c b/drivers/net/slip.c index a0806d262fc6..2f4b1de7a2b4 100644 --- a/drivers/net/slip.c +++ b/drivers/net/slip.c @@ -1343,15 +1343,12 @@ static int __init slip_init(void) printk(KERN_INFO "SLIP linefill/keepalive option.\n"); #endif - slip_devs = kmalloc(sizeof(struct net_device *)*slip_maxdev, GFP_KERNEL); + slip_devs = kzalloc(sizeof(struct net_device *)*slip_maxdev, GFP_KERNEL); if (!slip_devs) { printk(KERN_ERR "SLIP: Can't allocate slip devices array! Uaargh! (-> No SLIP available)\n"); return -ENOMEM; } - /* Clear the pointer array, we allocate devices when we need them */ - memset(slip_devs, 0, sizeof(struct net_device *)*slip_maxdev); - /* Fill in our line protocol discipline, and register it */ if ((status = tty_register_ldisc(N_SLIP, &sl_ldisc)) != 0) { printk(KERN_ERR "SLIP: can't register line discipline (err = %d)\n", status); diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 135c0987deae..e136bae61970 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -3380,7 +3380,7 @@ next_pkt: } next_pkt_nopost: sw_idx++; - sw_idx %= TG3_RX_RCB_RING_SIZE(tp); + sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1); /* Refresh hw_idx to see if there is new work */ if (sw_idx == hw_idx) { diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c index a138b1510093..3a1a958fb5f2 100644 --- a/drivers/s390/char/monreader.c +++ b/drivers/s390/char/monreader.c @@ -3,7 +3,7 @@ * * Character device driver for reading z/VM *MONITOR service records. * - * Copyright (C) 2004 IBM Corporation, IBM Deutschland Entwicklung GmbH. + * Copyright 2004 IBM Corporation, IBM Deutschland Entwicklung GmbH. * * Author: Gerald Schaefer <geraldsc@de.ibm.com> */ @@ -22,7 +22,7 @@ #include <asm/ebcdic.h> #include <asm/extmem.h> #include <linux/poll.h> -#include "../net/iucv.h" +#include <net/iucv/iucv.h> //#define MON_DEBUG /* Debug messages on/off */ @@ -50,14 +50,13 @@ static char mon_dcss_name[9] = "MONDCSS\0"; struct mon_msg { u32 pos; u32 mca_offset; - iucv_MessagePending local_eib; + struct iucv_message msg; char msglim_reached; char replied_msglim; }; struct mon_private { - u16 pathid; - iucv_handle_t iucv_handle; + struct iucv_path *path; struct mon_msg *msg_array[MON_MSGLIM]; unsigned int write_index; unsigned int read_index; @@ -75,8 +74,6 @@ static unsigned long mon_dcss_end; static DECLARE_WAIT_QUEUE_HEAD(mon_read_wait_queue); static DECLARE_WAIT_QUEUE_HEAD(mon_conn_wait_queue); -static u8 iucv_host[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; - static u8 user_data_connect[16] = { /* Version code, must be 0x01 for shared mode */ 0x01, @@ -100,8 +97,7 @@ static u8 user_data_sever[16] = { * Create the 8 bytes EBCDIC DCSS segment name from * an ASCII name, incl. padding */ -static inline void -dcss_mkname(char *ascii_name, char *ebcdic_name) +static inline void dcss_mkname(char *ascii_name, char *ebcdic_name) { int i; @@ -119,8 +115,7 @@ dcss_mkname(char *ascii_name, char *ebcdic_name) * print appropriate error message for segment_load()/segment_type() * return code */ -static void -mon_segment_warn(int rc, char* seg_name) +static void mon_segment_warn(int rc, char* seg_name) { switch (rc) { case -ENOENT: @@ -166,44 +161,37 @@ mon_segment_warn(int rc, char* seg_name) } } -static inline unsigned long -mon_mca_start(struct mon_msg *monmsg) +static inline unsigned long mon_mca_start(struct mon_msg *monmsg) { - return monmsg->local_eib.ln1msg1.iprmmsg1_u32; + return *(u32 *) &monmsg->msg.rmmsg; } -static inline unsigned long -mon_mca_end(struct mon_msg *monmsg) +static inline unsigned long mon_mca_end(struct mon_msg *monmsg) { - return monmsg->local_eib.ln1msg2.ipbfln1f; + return *(u32 *) &monmsg->msg.rmmsg[4]; } -static inline u8 -mon_mca_type(struct mon_msg *monmsg, u8 index) +static inline u8 mon_mca_type(struct mon_msg *monmsg, u8 index) { return *((u8 *) mon_mca_start(monmsg) + monmsg->mca_offset + index); } -static inline u32 -mon_mca_size(struct mon_msg *monmsg) +static inline u32 mon_mca_size(struct mon_msg *monmsg) { return mon_mca_end(monmsg) - mon_mca_start(monmsg) + 1; } -static inline u32 -mon_rec_start(struct mon_msg *monmsg) +static inline u32 mon_rec_start(struct mon_msg *monmsg) { return *((u32 *) (mon_mca_start(monmsg) + monmsg->mca_offset + 4)); } -static inline u32 -mon_rec_end(struct mon_msg *monmsg) +static inline u32 mon_rec_end(struct mon_msg *monmsg) { return *((u32 *) (mon_mca_start(monmsg) + monmsg->mca_offset + 8)); } -static inline int -mon_check_mca(struct mon_msg *monmsg) +static inline int mon_check_mca(struct mon_msg *monmsg) { if ((mon_rec_end(monmsg) <= mon_rec_start(monmsg)) || (mon_rec_start(monmsg) < mon_dcss_start) || @@ -221,20 +209,17 @@ mon_check_mca(struct mon_msg *monmsg) return 0; } -static inline int -mon_send_reply(struct mon_msg *monmsg, struct mon_private *monpriv) +static inline int mon_send_reply(struct mon_msg *monmsg, + struct mon_private *monpriv) { - u8 prmmsg[8]; int rc; P_DEBUG("read, REPLY: pathid = 0x%04X, msgid = 0x%08X, trgcls = " "0x%08X\n\n", - monmsg->local_eib.ippathid, monmsg->local_eib.ipmsgid, - monmsg->local_eib.iptrgcls); - rc = iucv_reply_prmmsg(monmsg->local_eib.ippathid, - monmsg->local_eib.ipmsgid, - monmsg->local_eib.iptrgcls, - 0, prmmsg); + monpriv->path->pathid, monmsg->msg.id, monmsg->msg.class); + + rc = iucv_message_reply(monpriv->path, &monmsg->msg, + IUCV_IPRMDATA, NULL, 0); atomic_dec(&monpriv->msglim_count); if (likely(!monmsg->msglim_reached)) { monmsg->pos = 0; @@ -251,10 +236,19 @@ mon_send_reply(struct mon_msg *monmsg, struct mon_private *monpriv) return 0; } -static inline struct mon_private * -mon_alloc_mem(void) +static inline void mon_free_mem(struct mon_private *monpriv) +{ + int i; + + for (i = 0; i < MON_MSGLIM; i++) + if (monpriv->msg_array[i]) + kfree(monpriv->msg_array[i]); + kfree(monpriv); +} + +static inline struct mon_private *mon_alloc_mem(void) { - int i,j; + int i; struct mon_private *monpriv; monpriv = kzalloc(sizeof(struct mon_private), GFP_KERNEL); @@ -267,16 +261,15 @@ mon_alloc_mem(void) GFP_KERNEL); if (!monpriv->msg_array[i]) { P_ERROR("open, no memory for msg_array\n"); - for (j = 0; j < i; j++) - kfree(monpriv->msg_array[j]); + mon_free_mem(monpriv); return NULL; } } return monpriv; } -static inline void -mon_read_debug(struct mon_msg *monmsg, struct mon_private *monpriv) +static inline void mon_read_debug(struct mon_msg *monmsg, + struct mon_private *monpriv) { #ifdef MON_DEBUG u8 msg_type[2], mca_type; @@ -284,7 +277,7 @@ mon_read_debug(struct mon_msg *monmsg, struct mon_private *monpriv) records_len = mon_rec_end(monmsg) - mon_rec_start(monmsg) + 1; - memcpy(msg_type, &monmsg->local_eib.iptrgcls, 2); + memcpy(msg_type, &monmsg->msg.class, 2); EBCASC(msg_type, 2); mca_type = mon_mca_type(monmsg, 0); EBCASC(&mca_type, 1); @@ -292,8 +285,7 @@ mon_read_debug(struct mon_msg *monmsg, struct mon_private *monpriv) P_DEBUG("read, mon_read_index = %i, mon_write_index = %i\n", monpriv->read_index, monpriv->write_index); P_DEBUG("read, pathid = 0x%04X, msgid = 0x%08X, trgcls = 0x%08X\n", - monmsg->local_eib.ippathid, monmsg->local_eib.ipmsgid, - monmsg->local_eib.iptrgcls); + monpriv->path->pathid, monmsg->msg.id, monmsg->msg.class); P_DEBUG("read, msg_type = '%c%c', mca_type = '%c' / 0x%X / 0x%X\n", msg_type[0], msg_type[1], mca_type ? mca_type : 'X', mon_mca_type(monmsg, 1), mon_mca_type(monmsg, 2)); @@ -306,8 +298,7 @@ mon_read_debug(struct mon_msg *monmsg, struct mon_private *monpriv) #endif } -static inline void -mon_next_mca(struct mon_msg *monmsg) +static inline void mon_next_mca(struct mon_msg *monmsg) { if (likely((mon_mca_size(monmsg) - monmsg->mca_offset) == 12)) return; @@ -316,8 +307,7 @@ mon_next_mca(struct mon_msg *monmsg) monmsg->pos = 0; } -static inline struct mon_msg * -mon_next_message(struct mon_private *monpriv) +static inline struct mon_msg *mon_next_message(struct mon_private *monpriv) { struct mon_msg *monmsg; @@ -342,39 +332,37 @@ mon_next_message(struct mon_private *monpriv) /****************************************************************************** * IUCV handler * *****************************************************************************/ -static void -mon_iucv_ConnectionComplete(iucv_ConnectionComplete *eib, void *pgm_data) +static void mon_iucv_path_complete(struct iucv_path *path, u8 ipuser[16]) { - struct mon_private *monpriv = (struct mon_private *) pgm_data; + struct mon_private *monpriv = path->private; P_DEBUG("IUCV connection completed\n"); P_DEBUG("IUCV ACCEPT (from *MONITOR): Version = 0x%02X, Event = " "0x%02X, Sample = 0x%02X\n", - eib->ipuser[0], eib->ipuser[1], eib->ipuser[2]); + ipuser[0], ipuser[1], ipuser[2]); atomic_set(&monpriv->iucv_connected, 1); wake_up(&mon_conn_wait_queue); } -static void -mon_iucv_ConnectionSevered(iucv_ConnectionSevered *eib, void *pgm_data) +static void mon_iucv_path_severed(struct iucv_path *path, u8 ipuser[16]) { - struct mon_private *monpriv = (struct mon_private *) pgm_data; + struct mon_private *monpriv = path->private; - P_ERROR("IUCV connection severed with rc = 0x%X\n", - (u8) eib->ipuser[0]); + P_ERROR("IUCV connection severed with rc = 0x%X\n", ipuser[0]); + iucv_path_sever(path, NULL); atomic_set(&monpriv->iucv_severed, 1); wake_up(&mon_conn_wait_queue); wake_up_interruptible(&mon_read_wait_queue); } -static void -mon_iucv_MessagePending(iucv_MessagePending *eib, void *pgm_data) +static void mon_iucv_message_pending(struct iucv_path *path, + struct iucv_message *msg) { - struct mon_private *monpriv = (struct mon_private *) pgm_data; + struct mon_private *monpriv = path->private; P_DEBUG("IUCV message pending\n"); - memcpy(&monpriv->msg_array[monpriv->write_index]->local_eib, eib, - sizeof(iucv_MessagePending)); + memcpy(&monpriv->msg_array[monpriv->write_index]->msg, + msg, sizeof(*msg)); if (atomic_inc_return(&monpriv->msglim_count) == MON_MSGLIM) { P_WARNING("IUCV message pending, message limit (%i) reached\n", MON_MSGLIM); @@ -385,54 +373,45 @@ mon_iucv_MessagePending(iucv_MessagePending *eib, void *pgm_data) wake_up_interruptible(&mon_read_wait_queue); } -static iucv_interrupt_ops_t mon_iucvops = { - .ConnectionComplete = mon_iucv_ConnectionComplete, - .ConnectionSevered = mon_iucv_ConnectionSevered, - .MessagePending = mon_iucv_MessagePending, +static struct iucv_handler monreader_iucv_handler = { + .path_complete = mon_iucv_path_complete, + .path_severed = mon_iucv_path_severed, + .message_pending = mon_iucv_message_pending, }; /****************************************************************************** * file operations * *****************************************************************************/ -static int -mon_open(struct inode *inode, struct file *filp) +static int mon_open(struct inode *inode, struct file *filp) { - int rc, i; struct mon_private *monpriv; + int rc; /* * only one user allowed */ + rc = -EBUSY; if (test_and_set_bit(MON_IN_USE, &mon_in_use)) - return -EBUSY; + goto out; + rc = -ENOMEM; monpriv = mon_alloc_mem(); if (!monpriv) - return -ENOMEM; + goto out_use; /* - * Register with IUCV and connect to *MONITOR service + * Connect to *MONITOR service */ - monpriv->iucv_handle = iucv_register_program("my_monreader ", - MON_SERVICE, - NULL, - &mon_iucvops, - monpriv); - if (!monpriv->iucv_handle) { - P_ERROR("failed to register with iucv driver\n"); - rc = -EIO; - goto out_error; - } - P_INFO("open, registered with IUCV\n"); - - rc = iucv_connect(&monpriv->pathid, MON_MSGLIM, user_data_connect, - MON_SERVICE, iucv_host, IPRMDATA, NULL, NULL, - monpriv->iucv_handle, NULL); + monpriv->path = iucv_path_alloc(MON_MSGLIM, IUCV_IPRMDATA, GFP_KERNEL); + if (!monpriv->path) + goto out_priv; + rc = iucv_path_connect(monpriv->path, &monreader_iucv_handler, + MON_SERVICE, NULL, user_data_connect, monpriv); if (rc) { P_ERROR("iucv connection to *MONITOR failed with " "IPUSER SEVER code = %i\n", rc); rc = -EIO; - goto out_unregister; + goto out_path; } /* * Wait for connection confirmation @@ -444,24 +423,23 @@ mon_open(struct inode *inode, struct file *filp) atomic_set(&monpriv->iucv_severed, 0); atomic_set(&monpriv->iucv_connected, 0); rc = -EIO; - goto out_unregister; + goto out_path; } P_INFO("open, established connection to *MONITOR service\n\n"); filp->private_data = monpriv; return nonseekable_open(inode, filp); -out_unregister: - iucv_unregister_program(monpriv->iucv_handle); -out_error: - for (i = 0; i < MON_MSGLIM; i++) - kfree(monpriv->msg_array[i]); - kfree(monpriv); +out_path: + kfree(monpriv->path); +out_priv: + mon_free_mem(monpriv); +out_use: clear_bit(MON_IN_USE, &mon_in_use); +out: return rc; } -static int -mon_close(struct inode *inode, struct file *filp) +static int mon_close(struct inode *inode, struct file *filp) { int rc, i; struct mon_private *monpriv = filp->private_data; @@ -469,18 +447,12 @@ mon_close(struct inode *inode, struct file *filp) /* * Close IUCV connection and unregister */ - rc = iucv_sever(monpriv->pathid, user_data_sever); + rc = iucv_path_sever(monpriv->path, user_data_sever); if (rc) P_ERROR("close, iucv_sever failed with rc = %i\n", rc); else P_INFO("close, terminated connection to *MONITOR service\n"); - rc = iucv_unregister_program(monpriv->iucv_handle); - if (rc) - P_ERROR("close, iucv_unregister failed with rc = %i\n", rc); - else - P_INFO("close, unregistered with IUCV\n"); - atomic_set(&monpriv->iucv_severed, 0); atomic_set(&monpriv->iucv_connected, 0); atomic_set(&monpriv->read_ready, 0); @@ -495,8 +467,8 @@ mon_close(struct inode *inode, struct file *filp) return 0; } -static ssize_t -mon_read(struct file *filp, char __user *data, size_t count, loff_t *ppos) +static ssize_t mon_read(struct file *filp, char __user *data, + size_t count, loff_t *ppos) { struct mon_private *monpriv = filp->private_data; struct mon_msg *monmsg; @@ -563,8 +535,7 @@ out_copy: return count; } -static unsigned int -mon_poll(struct file *filp, struct poll_table_struct *p) +static unsigned int mon_poll(struct file *filp, struct poll_table_struct *p) { struct mon_private *monpriv = filp->private_data; @@ -593,8 +564,7 @@ static struct miscdevice mon_dev = { /****************************************************************************** * module init/exit * *****************************************************************************/ -static int __init -mon_init(void) +static int __init mon_init(void) { int rc; @@ -603,22 +573,34 @@ mon_init(void) return -ENODEV; } + /* + * Register with IUCV and connect to *MONITOR service + */ + rc = iucv_register(&monreader_iucv_handler, 1); + if (rc) { + P_ERROR("failed to register with iucv driver\n"); + return rc; + } + P_INFO("open, registered with IUCV\n"); + rc = segment_type(mon_dcss_name); if (rc < 0) { mon_segment_warn(rc, mon_dcss_name); - return rc; + goto out_iucv; } if (rc != SEG_TYPE_SC) { P_ERROR("segment %s has unsupported type, should be SC\n", mon_dcss_name); - return -EINVAL; + rc = -EINVAL; + goto out_iucv; } rc = segment_load(mon_dcss_name, SEGMENT_SHARED, &mon_dcss_start, &mon_dcss_end); if (rc < 0) { mon_segment_warn(rc, mon_dcss_name); - return -EINVAL; + rc = -EINVAL; + goto out_iucv; } dcss_mkname(mon_dcss_name, &user_data_connect[8]); @@ -634,14 +616,16 @@ mon_init(void) out: segment_unload(mon_dcss_name); +out_iucv: + iucv_unregister(&monreader_iucv_handler, 1); return rc; } -static void __exit -mon_exit(void) +static void __exit mon_exit(void) { segment_unload(mon_dcss_name); WARN_ON(misc_deregister(&mon_dev) != 0); + iucv_unregister(&monreader_iucv_handler, 1); return; } diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index 4f894dc2373b..8432a76b961e 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -3,7 +3,7 @@ * character device driver for reading z/VM system service records * * - * Copyright (C) 2004 IBM Corporation + * Copyright 2004 IBM Corporation * character device driver for reading z/VM system service records, * Version 1.0 * Author(s): Xenia Tkatschow <xenia@us.ibm.com> @@ -21,7 +21,7 @@ #include <asm/cpcmd.h> #include <asm/debug.h> #include <asm/ebcdic.h> -#include "../net/iucv.h" +#include <net/iucv/iucv.h> #include <linux/kmod.h> #include <linux/cdev.h> #include <linux/device.h> @@ -60,12 +60,11 @@ struct vmlogrdr_priv_t { char system_service[8]; char internal_name[8]; char recording_name[8]; - u16 pathid; + struct iucv_path *path; int connection_established; int iucv_path_severed; - iucv_MessagePending local_interrupt_buffer; + struct iucv_message local_interrupt_buffer; atomic_t receive_ready; - iucv_handle_t iucv_handle; int minor_num; char * buffer; char * current_position; @@ -97,37 +96,19 @@ static struct file_operations vmlogrdr_fops = { }; -static u8 iucvMagic[16] = { - 0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, - 0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40 -}; +static void vmlogrdr_iucv_path_complete(struct iucv_path *, u8 ipuser[16]); +static void vmlogrdr_iucv_path_severed(struct iucv_path *, u8 ipuser[16]); +static void vmlogrdr_iucv_message_pending(struct iucv_path *, + struct iucv_message *); -static u8 mask[] = { - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff +static struct iucv_handler vmlogrdr_iucv_handler = { + .path_complete = vmlogrdr_iucv_path_complete, + .path_severed = vmlogrdr_iucv_path_severed, + .message_pending = vmlogrdr_iucv_message_pending, }; -static u8 iucv_host[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - - -static void -vmlogrdr_iucv_ConnectionComplete(iucv_ConnectionComplete *eib, void *pgm_data); -static void -vmlogrdr_iucv_ConnectionSevered(iucv_ConnectionSevered *eib, void *pgm_data); -static void -vmlogrdr_iucv_MessagePending(iucv_MessagePending *eib, void *pgm_data); - - -static iucv_interrupt_ops_t vmlogrdr_iucvops = { - .ConnectionComplete = vmlogrdr_iucv_ConnectionComplete, - .ConnectionSevered = vmlogrdr_iucv_ConnectionSevered, - .MessagePending = vmlogrdr_iucv_MessagePending, -}; - static DECLARE_WAIT_QUEUE_HEAD(conn_wait_queue); static DECLARE_WAIT_QUEUE_HEAD(read_wait_queue); @@ -176,28 +157,29 @@ static struct cdev *vmlogrdr_cdev = NULL; static int recording_class_AB; -static void -vmlogrdr_iucv_ConnectionComplete (iucv_ConnectionComplete * eib, - void * pgm_data) +static void vmlogrdr_iucv_path_complete(struct iucv_path *path, u8 ipuser[16]) { - struct vmlogrdr_priv_t * logptr = pgm_data; + struct vmlogrdr_priv_t * logptr = path->private; + spin_lock(&logptr->priv_lock); logptr->connection_established = 1; spin_unlock(&logptr->priv_lock); wake_up(&conn_wait_queue); - return; } -static void -vmlogrdr_iucv_ConnectionSevered (iucv_ConnectionSevered * eib, void * pgm_data) +static void vmlogrdr_iucv_path_severed(struct iucv_path *path, u8 ipuser[16]) { - u8 reason = (u8) eib->ipuser[8]; - struct vmlogrdr_priv_t * logptr = pgm_data; + struct vmlogrdr_priv_t * logptr = path->private; + u8 reason = (u8) ipuser[8]; printk (KERN_ERR "vmlogrdr: connection severed with" " reason %i\n", reason); + iucv_path_sever(path, NULL); + kfree(path); + logptr->path = NULL; + spin_lock(&logptr->priv_lock); logptr->connection_established = 0; logptr->iucv_path_severed = 1; @@ -209,10 +191,10 @@ vmlogrdr_iucv_ConnectionSevered (iucv_ConnectionSevered * eib, void * pgm_data) } -static void -vmlogrdr_iucv_MessagePending (iucv_MessagePending * eib, void * pgm_data) +static void vmlogrdr_iucv_message_pending(struct iucv_path *path, + struct iucv_message *msg) { - struct vmlogrdr_priv_t * logptr = pgm_data; + struct vmlogrdr_priv_t * logptr = path->private; /* * This function is the bottom half so it should be quick. @@ -220,15 +202,15 @@ vmlogrdr_iucv_MessagePending (iucv_MessagePending * eib, void * pgm_data) * the usage count */ spin_lock(&logptr->priv_lock); - memcpy(&(logptr->local_interrupt_buffer), eib, sizeof(*eib)); + memcpy(&logptr->local_interrupt_buffer, msg, sizeof(*msg)); atomic_inc(&logptr->receive_ready); spin_unlock(&logptr->priv_lock); wake_up_interruptible(&read_wait_queue); } -static int -vmlogrdr_get_recording_class_AB(void) { +static int vmlogrdr_get_recording_class_AB(void) +{ char cp_command[]="QUERY COMMAND RECORDING "; char cp_response[80]; char *tail; @@ -258,8 +240,9 @@ vmlogrdr_get_recording_class_AB(void) { } -static int -vmlogrdr_recording(struct vmlogrdr_priv_t * logptr, int action, int purge) { +static int vmlogrdr_recording(struct vmlogrdr_priv_t * logptr, + int action, int purge) +{ char cp_command[80]; char cp_response[160]; @@ -317,8 +300,7 @@ vmlogrdr_recording(struct vmlogrdr_priv_t * logptr, int action, int purge) { } -static int -vmlogrdr_open (struct inode *inode, struct file *filp) +static int vmlogrdr_open (struct inode *inode, struct file *filp) { int dev_num = 0; struct vmlogrdr_priv_t * logptr = NULL; @@ -328,10 +310,7 @@ vmlogrdr_open (struct inode *inode, struct file *filp) dev_num = iminor(inode); if (dev_num > MAXMINOR) return -ENODEV; - logptr = &sys_ser[dev_num]; - if (logptr == NULL) - return -ENODEV; /* * only allow for blocking reads to be open @@ -344,52 +323,38 @@ vmlogrdr_open (struct inode *inode, struct file *filp) if (logptr->dev_in_use) { spin_unlock_bh(&logptr->priv_lock); return -EBUSY; - } else { - logptr->dev_in_use = 1; - spin_unlock_bh(&logptr->priv_lock); } - + logptr->dev_in_use = 1; + logptr->connection_established = 0; + logptr->iucv_path_severed = 0; atomic_set(&logptr->receive_ready, 0); logptr->buffer_free = 1; + spin_unlock_bh(&logptr->priv_lock); /* set the file options */ filp->private_data = logptr; filp->f_op = &vmlogrdr_fops; /* start recording for this service*/ - ret=0; - if (logptr->autorecording) + if (logptr->autorecording) { ret = vmlogrdr_recording(logptr,1,logptr->autopurge); - if (ret) - printk (KERN_WARNING "vmlogrdr: failed to start " - "recording automatically\n"); - - /* Register with iucv driver */ - logptr->iucv_handle = iucv_register_program(iucvMagic, - logptr->system_service, mask, &vmlogrdr_iucvops, - logptr); - - if (logptr->iucv_handle == NULL) { - printk (KERN_ERR "vmlogrdr: failed to register with" - "iucv driver\n"); - goto not_registered; + if (ret) + printk (KERN_WARNING "vmlogrdr: failed to start " + "recording automatically\n"); } /* create connection to the system service */ - spin_lock_bh(&logptr->priv_lock); - logptr->connection_established = 0; - logptr->iucv_path_severed = 0; - spin_unlock_bh(&logptr->priv_lock); - - connect_rc = iucv_connect (&(logptr->pathid), 10, iucvMagic, - logptr->system_service, iucv_host, 0, - NULL, NULL, - logptr->iucv_handle, NULL); + logptr->path = iucv_path_alloc(10, 0, GFP_KERNEL); + if (!logptr->path) + goto out_dev; + connect_rc = iucv_path_connect(logptr->path, &vmlogrdr_iucv_handler, + logptr->system_service, NULL, NULL, + logptr); if (connect_rc) { printk (KERN_ERR "vmlogrdr: iucv connection to %s " "failed with rc %i \n", logptr->system_service, connect_rc); - goto not_connected; + goto out_path; } /* We've issued the connect and now we must wait for a @@ -398,35 +363,28 @@ vmlogrdr_open (struct inode *inode, struct file *filp) */ wait_event(conn_wait_queue, (logptr->connection_established) || (logptr->iucv_path_severed)); - if (logptr->iucv_path_severed) { - goto not_connected; - } - + if (logptr->iucv_path_severed) + goto out_record; return nonseekable_open(inode, filp); -not_connected: - iucv_unregister_program(logptr->iucv_handle); - logptr->iucv_handle = NULL; -not_registered: +out_record: if (logptr->autorecording) vmlogrdr_recording(logptr,0,logptr->autopurge); +out_path: + kfree(logptr->path); /* kfree(NULL) is ok. */ + logptr->path = NULL; +out_dev: logptr->dev_in_use = 0; return -EIO; - - } -static int -vmlogrdr_release (struct inode *inode, struct file *filp) +static int vmlogrdr_release (struct inode *inode, struct file *filp) { int ret; struct vmlogrdr_priv_t * logptr = filp->private_data; - iucv_unregister_program(logptr->iucv_handle); - logptr->iucv_handle = NULL; - if (logptr->autorecording) { ret = vmlogrdr_recording(logptr,0,logptr->autopurge); if (ret) @@ -439,8 +397,8 @@ vmlogrdr_release (struct inode *inode, struct file *filp) } -static int -vmlogrdr_receive_data(struct vmlogrdr_priv_t *priv) { +static int vmlogrdr_receive_data(struct vmlogrdr_priv_t *priv) +{ int rc, *temp; /* we need to keep track of two data sizes here: * The number of bytes we need to receive from iucv and @@ -461,8 +419,7 @@ vmlogrdr_receive_data(struct vmlogrdr_priv_t *priv) { * We need to return the total length of the record * + size of FENCE in the first 4 bytes of the buffer. */ - iucv_data_count = - priv->local_interrupt_buffer.ln1msg2.ipbfln1f; + iucv_data_count = priv->local_interrupt_buffer.length; user_data_count = sizeof(int); temp = (int*)priv->buffer; *temp= iucv_data_count + sizeof(FENCE); @@ -474,14 +431,10 @@ vmlogrdr_receive_data(struct vmlogrdr_priv_t *priv) { */ if (iucv_data_count > NET_BUFFER_SIZE) iucv_data_count = NET_BUFFER_SIZE; - rc = iucv_receive(priv->pathid, - priv->local_interrupt_buffer.ipmsgid, - priv->local_interrupt_buffer.iptrgcls, - buffer, - iucv_data_count, - NULL, - NULL, - &priv->residual_length); + rc = iucv_message_receive(priv->path, + &priv->local_interrupt_buffer, + 0, buffer, iucv_data_count, + &priv->residual_length); spin_unlock_bh(&priv->priv_lock); /* An rc of 5 indicates that the record was bigger then * the buffer, which is OK for us. A 9 indicates that the @@ -513,8 +466,8 @@ vmlogrdr_receive_data(struct vmlogrdr_priv_t *priv) { } -static ssize_t -vmlogrdr_read(struct file *filp, char __user *data, size_t count, loff_t * ppos) +static ssize_t vmlogrdr_read(struct file *filp, char __user *data, + size_t count, loff_t * ppos) { int rc; struct vmlogrdr_priv_t * priv = filp->private_data; @@ -546,8 +499,10 @@ vmlogrdr_read(struct file *filp, char __user *data, size_t count, loff_t * ppos) return count; } -static ssize_t -vmlogrdr_autopurge_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t count) { +static ssize_t vmlogrdr_autopurge_store(struct device * dev, + struct device_attribute *attr, + const char * buf, size_t count) +{ struct vmlogrdr_priv_t *priv = dev->driver_data; ssize_t ret = count; @@ -565,8 +520,10 @@ vmlogrdr_autopurge_store(struct device * dev, struct device_attribute *attr, con } -static ssize_t -vmlogrdr_autopurge_show(struct device *dev, struct device_attribute *attr, char *buf) { +static ssize_t vmlogrdr_autopurge_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ struct vmlogrdr_priv_t *priv = dev->driver_data; return sprintf(buf, "%u\n", priv->autopurge); } @@ -576,8 +533,10 @@ static DEVICE_ATTR(autopurge, 0644, vmlogrdr_autopurge_show, vmlogrdr_autopurge_store); -static ssize_t -vmlogrdr_purge_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t count) { +static ssize_t vmlogrdr_purge_store(struct device * dev, + struct device_attribute *attr, + const char * buf, size_t count) +{ char cp_command[80]; char cp_response[80]; @@ -617,9 +576,10 @@ vmlogrdr_purge_store(struct device * dev, struct device_attribute *attr, const c static DEVICE_ATTR(purge, 0200, NULL, vmlogrdr_purge_store); -static ssize_t -vmlogrdr_autorecording_store(struct device *dev, struct device_attribute *attr, const char *buf, - size_t count) { +static ssize_t vmlogrdr_autorecording_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ struct vmlogrdr_priv_t *priv = dev->driver_data; ssize_t ret = count; @@ -637,8 +597,10 @@ vmlogrdr_autorecording_store(struct device *dev, struct device_attribute *attr, } -static ssize_t -vmlogrdr_autorecording_show(struct device *dev, struct device_attribute *attr, char *buf) { +static ssize_t vmlogrdr_autorecording_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ struct vmlogrdr_priv_t *priv = dev->driver_data; return sprintf(buf, "%u\n", priv->autorecording); } @@ -648,9 +610,10 @@ static DEVICE_ATTR(autorecording, 0644, vmlogrdr_autorecording_show, vmlogrdr_autorecording_store); -static ssize_t -vmlogrdr_recording_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t count) { - +static ssize_t vmlogrdr_recording_store(struct device * dev, + struct device_attribute *attr, + const char * buf, size_t count) +{ struct vmlogrdr_priv_t *priv = dev->driver_data; ssize_t ret; @@ -675,8 +638,9 @@ vmlogrdr_recording_store(struct device * dev, struct device_attribute *attr, con static DEVICE_ATTR(recording, 0200, NULL, vmlogrdr_recording_store); -static ssize_t -vmlogrdr_recording_status_show(struct device_driver *driver, char *buf) { +static ssize_t vmlogrdr_recording_status_show(struct device_driver *driver, + char *buf) +{ char cp_command[] = "QUERY RECORDING "; int len; @@ -709,52 +673,63 @@ static struct device_driver vmlogrdr_driver = { }; -static int -vmlogrdr_register_driver(void) { +static int vmlogrdr_register_driver(void) +{ int ret; + /* Register with iucv driver */ + ret = iucv_register(&vmlogrdr_iucv_handler, 1); + if (ret) { + printk (KERN_ERR "vmlogrdr: failed to register with" + "iucv driver\n"); + goto out; + } + ret = driver_register(&vmlogrdr_driver); if (ret) { printk(KERN_ERR "vmlogrdr: failed to register driver.\n"); - return ret; + goto out_iucv; } ret = driver_create_file(&vmlogrdr_driver, &driver_attr_recording_status); if (ret) { printk(KERN_ERR "vmlogrdr: failed to add driver attribute.\n"); - goto unregdriver; + goto out_driver; } vmlogrdr_class = class_create(THIS_MODULE, "vmlogrdr"); if (IS_ERR(vmlogrdr_class)) { printk(KERN_ERR "vmlogrdr: failed to create class.\n"); - ret=PTR_ERR(vmlogrdr_class); - vmlogrdr_class=NULL; - goto unregattr; + ret = PTR_ERR(vmlogrdr_class); + vmlogrdr_class = NULL; + goto out_attr; } return 0; -unregattr: +out_attr: driver_remove_file(&vmlogrdr_driver, &driver_attr_recording_status); -unregdriver: +out_driver: driver_unregister(&vmlogrdr_driver); +out_iucv: + iucv_unregister(&vmlogrdr_iucv_handler, 1); +out: return ret; } -static void -vmlogrdr_unregister_driver(void) { +static void vmlogrdr_unregister_driver(void) +{ class_destroy(vmlogrdr_class); vmlogrdr_class = NULL; driver_remove_file(&vmlogrdr_driver, &driver_attr_recording_status); driver_unregister(&vmlogrdr_driver); - return; + iucv_unregister(&vmlogrdr_iucv_handler, 1); } -static int -vmlogrdr_register_device(struct vmlogrdr_priv_t *priv) { +static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv) +{ struct device *dev; int ret; @@ -803,9 +778,10 @@ vmlogrdr_register_device(struct vmlogrdr_priv_t *priv) { } -static int -vmlogrdr_unregister_device(struct vmlogrdr_priv_t *priv ) { - class_device_destroy(vmlogrdr_class, MKDEV(vmlogrdr_major, priv->minor_num)); +static int vmlogrdr_unregister_device(struct vmlogrdr_priv_t *priv) +{ + class_device_destroy(vmlogrdr_class, + MKDEV(vmlogrdr_major, priv->minor_num)); if (priv->device != NULL) { sysfs_remove_group(&priv->device->kobj, &vmlogrdr_attr_group); device_unregister(priv->device); @@ -815,8 +791,8 @@ vmlogrdr_unregister_device(struct vmlogrdr_priv_t *priv ) { } -static int -vmlogrdr_register_cdev(dev_t dev) { +static int vmlogrdr_register_cdev(dev_t dev) +{ int rc = 0; vmlogrdr_cdev = cdev_alloc(); if (!vmlogrdr_cdev) { @@ -836,9 +812,10 @@ vmlogrdr_register_cdev(dev_t dev) { } -static void -vmlogrdr_cleanup(void) { +static void vmlogrdr_cleanup(void) +{ int i; + if (vmlogrdr_cdev) { cdev_del(vmlogrdr_cdev); vmlogrdr_cdev=NULL; @@ -855,8 +832,7 @@ vmlogrdr_cleanup(void) { } -static int -vmlogrdr_init(void) +static int vmlogrdr_init(void) { int rc; int i; @@ -906,8 +882,7 @@ cleanup: } -static void -vmlogrdr_exit(void) +static void vmlogrdr_exit(void) { vmlogrdr_cleanup(); printk (KERN_INFO "vmlogrdr: driver unloaded\n"); diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig index 52625153a4f0..f98fa465df0a 100644 --- a/drivers/s390/net/Kconfig +++ b/drivers/s390/net/Kconfig @@ -22,13 +22,6 @@ config CTC available. This option is also available as a module which will be called ctc.ko. If you do not know what it is, it's safe to say "Y". -config IUCV - tristate "IUCV support (VM only)" - help - Select this option if you want to use inter-user communication - under VM or VIF. If unsure, say "Y" to enable a fast communication - link between VM guests. - config NETIUCV tristate "IUCV network device support (VM only)" depends on IUCV && NETDEVICES diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile index 4777e36a922f..bbe3ab2e93d9 100644 --- a/drivers/s390/net/Makefile +++ b/drivers/s390/net/Makefile @@ -4,7 +4,6 @@ ctc-objs := ctcmain.o ctcdbug.o -obj-$(CONFIG_IUCV) += iucv.o obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o obj-$(CONFIG_SMSGIUCV) += smsgiucv.o obj-$(CONFIG_CTC) += ctc.o fsm.o cu3088.o diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c deleted file mode 100644 index 229aeb5fc399..000000000000 --- a/drivers/s390/net/iucv.c +++ /dev/null @@ -1,2540 +0,0 @@ -/* - * IUCV network driver - * - * Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): - * Original source: - * Alan Altmark (Alan_Altmark@us.ibm.com) Sept. 2000 - * Xenia Tkatschow (xenia@us.ibm.com) - * 2Gb awareness and general cleanup: - * Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com) - * - * Documentation used: - * The original source - * CP Programming Service, IBM document # SC24-5760 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -/* #define DEBUG */ - -#include <linux/module.h> -#include <linux/moduleparam.h> - -#include <linux/spinlock.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/device.h> -#include <asm/atomic.h> -#include "iucv.h" -#include <asm/io.h> -#include <asm/s390_ext.h> -#include <asm/ebcdic.h> -#include <asm/smp.h> -#include <asm/s390_rdev.h> - -/* FLAGS: - * All flags are defined in the field IPFLAGS1 of each function - * and can be found in CP Programming Services. - * IPSRCCLS - Indicates you have specified a source class - * IPFGMCL - Indicates you have specified a target class - * IPFGPID - Indicates you have specified a pathid - * IPFGMID - Indicates you have specified a message ID - * IPANSLST - Indicates that you are using an address list for - * reply data - * IPBUFLST - Indicates that you are using an address list for - * message data - */ - -#define IPSRCCLS 0x01 -#define IPFGMCL 0x01 -#define IPFGPID 0x02 -#define IPFGMID 0x04 -#define IPANSLST 0x08 -#define IPBUFLST 0x40 - -static int -iucv_bus_match (struct device *dev, struct device_driver *drv) -{ - return 0; -} - -struct bus_type iucv_bus = { - .name = "iucv", - .match = iucv_bus_match, -}; - -struct device *iucv_root; - -/* General IUCV interrupt structure */ -typedef struct { - __u16 ippathid; - __u8 res1; - __u8 iptype; - __u32 res2; - __u8 ipvmid[8]; - __u8 res3[24]; -} iucv_GeneralInterrupt; - -static iucv_GeneralInterrupt *iucv_external_int_buffer = NULL; - -/* Spin Lock declaration */ - -static DEFINE_SPINLOCK(iucv_lock); - -static int messagesDisabled = 0; - -/***************INTERRUPT HANDLING ***************/ - -typedef struct { - struct list_head queue; - iucv_GeneralInterrupt data; -} iucv_irqdata; - -static struct list_head iucv_irq_queue; -static DEFINE_SPINLOCK(iucv_irq_queue_lock); - -/* - *Internal function prototypes - */ -static void iucv_tasklet_handler(unsigned long); -static void iucv_irq_handler(__u16); - -static DECLARE_TASKLET(iucv_tasklet,iucv_tasklet_handler,0); - -/************ FUNCTION ID'S ****************************/ - -#define ACCEPT 10 -#define CONNECT 11 -#define DECLARE_BUFFER 12 -#define PURGE 9 -#define QUERY 0 -#define QUIESCE 13 -#define RECEIVE 5 -#define REJECT 8 -#define REPLY 6 -#define RESUME 14 -#define RETRIEVE_BUFFER 2 -#define SEND 4 -#define SETMASK 16 -#define SEVER 15 - -/** - * Structure: handler - * members: list - list management. - * structure: id - * userid - 8 char array of machine identification - * user_data - 16 char array for user identification - * mask - 24 char array used to compare the 2 previous - * interrupt_table - vector of interrupt functions. - * pgm_data - ulong, application data that is passed - * to the interrupt handlers -*/ -typedef struct handler_t { - struct list_head list; - struct { - __u8 userid[8]; - __u8 user_data[16]; - __u8 mask[24]; - } id; - iucv_interrupt_ops_t *interrupt_table; - void *pgm_data; -} handler; - -/** - * iucv_handler_table: List of registered handlers. - */ -static struct list_head iucv_handler_table; - -/** - * iucv_pathid_table: an array of *handler pointing into - * iucv_handler_table for fast indexing by pathid; - */ -static handler **iucv_pathid_table; - -static unsigned long max_connections; - -/** - * iucv_cpuid: contains the logical cpu number of the cpu which - * has declared the iucv buffer by issuing DECLARE_BUFFER. - * If no cpu has done the initialization iucv_cpuid contains -1. - */ -static int iucv_cpuid = -1; -/** - * register_flag: is 0 when external interrupt has not been registered - */ -static int register_flag; - -/****************FIVE 40-BYTE PARAMETER STRUCTURES******************/ -/* Data struct 1: iparml_control - * Used for iucv_accept - * iucv_connect - * iucv_quiesce - * iucv_resume - * iucv_sever - * iucv_retrieve_buffer - * Data struct 2: iparml_dpl (data in parameter list) - * Used for iucv_send_prmmsg - * iucv_send2way_prmmsg - * iucv_send2way_prmmsg_array - * iucv_reply_prmmsg - * Data struct 3: iparml_db (data in a buffer) - * Used for iucv_receive - * iucv_receive_array - * iucv_reject - * iucv_reply - * iucv_reply_array - * iucv_send - * iucv_send_array - * iucv_send2way - * iucv_send2way_array - * iucv_declare_buffer - * Data struct 4: iparml_purge - * Used for iucv_purge - * iucv_query - * Data struct 5: iparml_set_mask - * Used for iucv_set_mask - */ - -typedef struct { - __u16 ippathid; - __u8 ipflags1; - __u8 iprcode; - __u16 ipmsglim; - __u16 res1; - __u8 ipvmid[8]; - __u8 ipuser[16]; - __u8 iptarget[8]; -} iparml_control; - -typedef struct { - __u16 ippathid; - __u8 ipflags1; - __u8 iprcode; - __u32 ipmsgid; - __u32 iptrgcls; - __u8 iprmmsg[8]; - __u32 ipsrccls; - __u32 ipmsgtag; - __u32 ipbfadr2; - __u32 ipbfln2f; - __u32 res; -} iparml_dpl; - -typedef struct { - __u16 ippathid; - __u8 ipflags1; - __u8 iprcode; - __u32 ipmsgid; - __u32 iptrgcls; - __u32 ipbfadr1; - __u32 ipbfln1f; - __u32 ipsrccls; - __u32 ipmsgtag; - __u32 ipbfadr2; - __u32 ipbfln2f; - __u32 res; -} iparml_db; - -typedef struct { - __u16 ippathid; - __u8 ipflags1; - __u8 iprcode; - __u32 ipmsgid; - __u8 ipaudit[3]; - __u8 res1[5]; - __u32 res2; - __u32 ipsrccls; - __u32 ipmsgtag; - __u32 res3[3]; -} iparml_purge; - -typedef struct { - __u8 ipmask; - __u8 res1[2]; - __u8 iprcode; - __u32 res2[9]; -} iparml_set_mask; - -typedef struct { - union { - iparml_control p_ctrl; - iparml_dpl p_dpl; - iparml_db p_db; - iparml_purge p_purge; - iparml_set_mask p_set_mask; - } param; - atomic_t in_use; - __u32 res; -} __attribute__ ((aligned(8))) iucv_param; -#define PARAM_POOL_SIZE (PAGE_SIZE / sizeof(iucv_param)) - -static iucv_param * iucv_param_pool; - -MODULE_AUTHOR("(C) 2001 IBM Corp. by Fritz Elfert (felfert@millenux.com)"); -MODULE_DESCRIPTION("Linux for S/390 IUCV lowlevel driver"); -MODULE_LICENSE("GPL"); - -/* - * Debugging stuff - *******************************************************************************/ - - -#ifdef DEBUG -static int debuglevel = 0; - -module_param(debuglevel, int, 0); -MODULE_PARM_DESC(debuglevel, - "Specifies the debug level (0=off ... 3=all)"); - -static void -iucv_dumpit(char *title, void *buf, int len) -{ - int i; - __u8 *p = (__u8 *)buf; - - if (debuglevel < 3) - return; - - printk(KERN_DEBUG "%s\n", title); - printk(" "); - for (i = 0; i < len; i++) { - if (!(i % 16) && i != 0) - printk ("\n "); - else if (!(i % 4) && i != 0) - printk(" "); - printk("%02X", *p++); - } - if (len % 16) - printk ("\n"); - return; -} -#define iucv_debug(lvl, fmt, args...) \ -do { \ - if (debuglevel >= lvl) \ - printk(KERN_DEBUG "%s: " fmt "\n", __FUNCTION__ , ## args); \ -} while (0) - -#else - -#define iucv_debug(lvl, fmt, args...) do { } while (0) -#define iucv_dumpit(title, buf, len) do { } while (0) - -#endif - -/* - * Internal functions - *******************************************************************************/ - -/** - * print start banner - */ -static void -iucv_banner(void) -{ - printk(KERN_INFO "IUCV lowlevel driver initialized\n"); -} - -/** - * iucv_init - Initialization - * - * Allocates and initializes various data structures. - */ -static int -iucv_init(void) -{ - int ret; - - if (iucv_external_int_buffer) - return 0; - - if (!MACHINE_IS_VM) { - printk(KERN_ERR "IUCV: IUCV connection needs VM as base\n"); - return -EPROTONOSUPPORT; - } - - ret = bus_register(&iucv_bus); - if (ret) { - printk(KERN_ERR "IUCV: failed to register bus.\n"); - return ret; - } - - iucv_root = s390_root_dev_register("iucv"); - if (IS_ERR(iucv_root)) { - printk(KERN_ERR "IUCV: failed to register iucv root.\n"); - bus_unregister(&iucv_bus); - return PTR_ERR(iucv_root); - } - - /* Note: GFP_DMA used used to get memory below 2G */ - iucv_external_int_buffer = kzalloc(sizeof(iucv_GeneralInterrupt), - GFP_KERNEL|GFP_DMA); - if (!iucv_external_int_buffer) { - printk(KERN_WARNING - "%s: Could not allocate external interrupt buffer\n", - __FUNCTION__); - s390_root_dev_unregister(iucv_root); - bus_unregister(&iucv_bus); - return -ENOMEM; - } - - /* Initialize parameter pool */ - iucv_param_pool = kzalloc(sizeof(iucv_param) * PARAM_POOL_SIZE, - GFP_KERNEL|GFP_DMA); - if (!iucv_param_pool) { - printk(KERN_WARNING "%s: Could not allocate param pool\n", - __FUNCTION__); - kfree(iucv_external_int_buffer); - iucv_external_int_buffer = NULL; - s390_root_dev_unregister(iucv_root); - bus_unregister(&iucv_bus); - return -ENOMEM; - } - - /* Initialize irq queue */ - INIT_LIST_HEAD(&iucv_irq_queue); - - /* Initialize handler table */ - INIT_LIST_HEAD(&iucv_handler_table); - - iucv_banner(); - return 0; -} - -/** - * iucv_exit - De-Initialization - * - * Frees everything allocated from iucv_init. - */ -static int iucv_retrieve_buffer (void); - -static void -iucv_exit(void) -{ - iucv_retrieve_buffer(); - kfree(iucv_external_int_buffer); - iucv_external_int_buffer = NULL; - kfree(iucv_param_pool); - iucv_param_pool = NULL; - s390_root_dev_unregister(iucv_root); - bus_unregister(&iucv_bus); - printk(KERN_INFO "IUCV lowlevel driver unloaded\n"); -} - -/** - * grab_param: - Get a parameter buffer from the pre-allocated pool. - * - * This function searches for an unused element in the pre-allocated pool - * of parameter buffers. If one is found, it marks it "in use" and returns - * a pointer to it. The calling function is responsible for releasing it - * when it has finished its usage. - * - * Returns: A pointer to iucv_param. - */ -static __inline__ iucv_param * -grab_param(void) -{ - iucv_param *ptr; - static int hint = 0; - - ptr = iucv_param_pool + hint; - do { - ptr++; - if (ptr >= iucv_param_pool + PARAM_POOL_SIZE) - ptr = iucv_param_pool; - } while (atomic_cmpxchg(&ptr->in_use, 0, 1) != 0); - hint = ptr - iucv_param_pool; - - memset(&ptr->param, 0, sizeof(ptr->param)); - return ptr; -} - -/** - * release_param - Release a parameter buffer. - * @p: A pointer to a struct iucv_param, previously obtained by calling - * grab_param(). - * - * This function marks the specified parameter buffer "unused". - */ -static __inline__ void -release_param(void *p) -{ - atomic_set(&((iucv_param *)p)->in_use, 0); -} - -/** - * iucv_add_handler: - Add a new handler - * @new_handler: handle that is being entered into chain. - * - * Places new handle on iucv_handler_table, if identical handler is not - * found. - * - * Returns: 0 on success, !0 on failure (handler already in chain). - */ -static int -iucv_add_handler (handler *new) -{ - ulong flags; - - iucv_debug(1, "entering"); - iucv_dumpit("handler:", new, sizeof(handler)); - - spin_lock_irqsave (&iucv_lock, flags); - if (!list_empty(&iucv_handler_table)) { - struct list_head *lh; - - /** - * Search list for handler with identical id. If one - * is found, the new handler is _not_ added. - */ - list_for_each(lh, &iucv_handler_table) { - handler *h = list_entry(lh, handler, list); - if (!memcmp(&new->id, &h->id, sizeof(h->id))) { - iucv_debug(1, "ret 1"); - spin_unlock_irqrestore (&iucv_lock, flags); - return 1; - } - } - } - /** - * If we get here, no handler was found. - */ - INIT_LIST_HEAD(&new->list); - list_add(&new->list, &iucv_handler_table); - spin_unlock_irqrestore (&iucv_lock, flags); - - iucv_debug(1, "exiting"); - return 0; -} - -/** - * b2f0: - * @code: identifier of IUCV call to CP. - * @parm: pointer to 40 byte iparml area passed to CP - * - * Calls CP to execute IUCV commands. - * - * Returns: return code from CP's IUCV call - */ -static inline ulong b2f0(__u32 code, void *parm) -{ - register unsigned long reg0 asm ("0"); - register unsigned long reg1 asm ("1"); - iucv_dumpit("iparml before b2f0 call:", parm, sizeof(iucv_param)); - - reg0 = code; - reg1 = virt_to_phys(parm); - asm volatile(".long 0xb2f01000" : : "d" (reg0), "a" (reg1)); - - iucv_dumpit("iparml after b2f0 call:", parm, sizeof(iucv_param)); - - return (unsigned long)*((__u8 *)(parm + 3)); -} - -/* - * Name: iucv_add_pathid - * Purpose: Adds a path id to the system. - * Input: pathid - pathid that is going to be entered into system - * handle - address of handler that the pathid will be associated - * with. - * pgm_data - token passed in by application. - * Output: 0: successful addition of pathid - * - EINVAL - pathid entry is being used by another application - * - ENOMEM - storage allocation for a new pathid table failed -*/ -static int -__iucv_add_pathid(__u16 pathid, handler *handler) -{ - - iucv_debug(1, "entering"); - - iucv_debug(1, "handler is pointing to %p", handler); - - if (pathid > (max_connections - 1)) - return -EINVAL; - - if (iucv_pathid_table[pathid]) { - iucv_debug(1, "pathid entry is %p", iucv_pathid_table[pathid]); - printk(KERN_WARNING - "%s: Pathid being used, error.\n", __FUNCTION__); - return -EINVAL; - } - iucv_pathid_table[pathid] = handler; - - iucv_debug(1, "exiting"); - return 0; -} /* end of add_pathid function */ - -static int -iucv_add_pathid(__u16 pathid, handler *handler) -{ - ulong flags; - int rc; - - spin_lock_irqsave (&iucv_lock, flags); - rc = __iucv_add_pathid(pathid, handler); - spin_unlock_irqrestore (&iucv_lock, flags); - return rc; -} - -static void -iucv_remove_pathid(__u16 pathid) -{ - ulong flags; - - if (pathid > (max_connections - 1)) - return; - - spin_lock_irqsave (&iucv_lock, flags); - iucv_pathid_table[pathid] = NULL; - spin_unlock_irqrestore (&iucv_lock, flags); -} - -/** - * iucv_declare_buffer_cpuid - * Register at VM for subsequent IUCV operations. This is executed - * on the reserved CPU iucv_cpuid. Called from iucv_declare_buffer(). - */ -static void -iucv_declare_buffer_cpuid (void *result) -{ - iparml_db *parm; - - parm = (iparml_db *)grab_param(); - parm->ipbfadr1 = virt_to_phys(iucv_external_int_buffer); - if ((*((ulong *)result) = b2f0(DECLARE_BUFFER, parm)) == 1) - *((ulong *)result) = parm->iprcode; - release_param(parm); -} - -/** - * iucv_retrieve_buffer_cpuid: - * Unregister IUCV usage at VM. This is always executed on the same - * cpu that registered the buffer to VM. - * Called from iucv_retrieve_buffer(). - */ -static void -iucv_retrieve_buffer_cpuid (void *cpu) -{ - iparml_control *parm; - - parm = (iparml_control *)grab_param(); - b2f0(RETRIEVE_BUFFER, parm); - release_param(parm); -} - -/** - * Name: iucv_declare_buffer - * Purpose: Specifies the guests real address of an external - * interrupt. - * Input: void - * Output: iprcode - return code from b2f0 call - */ -static int -iucv_declare_buffer (void) -{ - unsigned long flags; - ulong b2f0_result; - - iucv_debug(1, "entering"); - b2f0_result = -ENODEV; - spin_lock_irqsave (&iucv_lock, flags); - if (iucv_cpuid == -1) { - /* Reserve any cpu for use by iucv. */ - iucv_cpuid = smp_get_cpu(CPU_MASK_ALL); - spin_unlock_irqrestore (&iucv_lock, flags); - smp_call_function_on(iucv_declare_buffer_cpuid, - &b2f0_result, 0, 1, iucv_cpuid); - if (b2f0_result) { - smp_put_cpu(iucv_cpuid); - iucv_cpuid = -1; - } - iucv_debug(1, "Address of EIB = %p", iucv_external_int_buffer); - } else { - spin_unlock_irqrestore (&iucv_lock, flags); - b2f0_result = 0; - } - iucv_debug(1, "exiting"); - return b2f0_result; -} - -/** - * iucv_retrieve_buffer: - * - * Terminates all use of IUCV. - * Returns: return code from CP - */ -static int -iucv_retrieve_buffer (void) -{ - iucv_debug(1, "entering"); - if (iucv_cpuid != -1) { - smp_call_function_on(iucv_retrieve_buffer_cpuid, - NULL, 0, 1, iucv_cpuid); - /* Release the cpu reserved by iucv_declare_buffer. */ - smp_put_cpu(iucv_cpuid); - iucv_cpuid = -1; - } - iucv_debug(1, "exiting"); - return 0; -} - -/** - * iucv_remove_handler: - * @users_handler: handler to be removed - * - * Remove handler when application unregisters. - */ -static void -iucv_remove_handler(handler *handler) -{ - unsigned long flags; - - if ((!iucv_pathid_table) || (!handler)) - return; - - iucv_debug(1, "entering"); - - spin_lock_irqsave (&iucv_lock, flags); - list_del(&handler->list); - if (list_empty(&iucv_handler_table)) { - if (register_flag) { - unregister_external_interrupt(0x4000, iucv_irq_handler); - register_flag = 0; - } - } - spin_unlock_irqrestore (&iucv_lock, flags); - - iucv_debug(1, "exiting"); - return; -} - -/** - * iucv_register_program: - * @pgmname: user identification - * @userid: machine identification - * @pgmmask: Indicates which bits in the pgmname and userid combined will be - * used to determine who is given control. - * @ops: Address of interrupt handler table. - * @pgm_data: Application data to be passed to interrupt handlers. - * - * Registers an application with IUCV. - * Returns: - * The address of handler, or NULL on failure. - * NOTE on pgmmask: - * If pgmname, userid and pgmmask are provided, pgmmask is entered into the - * handler as is. - * If pgmmask is NULL, the internal mask is set to all 0xff's - * When userid is NULL, the first 8 bytes of the internal mask are forced - * to 0x00. - * If pgmmask and userid are NULL, the first 8 bytes of the internal mask - * are forced to 0x00 and the last 16 bytes to 0xff. - */ - -iucv_handle_t -iucv_register_program (__u8 pgmname[16], - __u8 userid[8], - __u8 pgmmask[24], - iucv_interrupt_ops_t * ops, void *pgm_data) -{ - ulong rc = 0; /* return code from function calls */ - handler *new_handler; - - iucv_debug(1, "entering"); - - if (ops == NULL) { - /* interrupt table is not defined */ - printk(KERN_WARNING "%s: Interrupt table is not defined, " - "exiting\n", __FUNCTION__); - return NULL; - } - if (!pgmname) { - printk(KERN_WARNING "%s: pgmname not provided\n", __FUNCTION__); - return NULL; - } - - /* Allocate handler entry */ - new_handler = kmalloc(sizeof(handler), GFP_ATOMIC); - if (new_handler == NULL) { - printk(KERN_WARNING "%s: storage allocation for new handler " - "failed.\n", __FUNCTION__); - return NULL; - } - - if (!iucv_pathid_table) { - if (iucv_init()) { - kfree(new_handler); - return NULL; - } - - max_connections = iucv_query_maxconn(); - iucv_pathid_table = kcalloc(max_connections, sizeof(handler *), - GFP_ATOMIC); - if (iucv_pathid_table == NULL) { - printk(KERN_WARNING "%s: iucv_pathid_table storage " - "allocation failed\n", __FUNCTION__); - kfree(new_handler); - return NULL; - } - } - memset(new_handler, 0, sizeof (handler)); - memcpy(new_handler->id.user_data, pgmname, - sizeof (new_handler->id.user_data)); - if (userid) { - memcpy (new_handler->id.userid, userid, - sizeof (new_handler->id.userid)); - ASCEBC (new_handler->id.userid, - sizeof (new_handler->id.userid)); - EBC_TOUPPER (new_handler->id.userid, - sizeof (new_handler->id.userid)); - - if (pgmmask) { - memcpy (new_handler->id.mask, pgmmask, - sizeof (new_handler->id.mask)); - } else { - memset (new_handler->id.mask, 0xFF, - sizeof (new_handler->id.mask)); - } - } else { - if (pgmmask) { - memcpy (new_handler->id.mask, pgmmask, - sizeof (new_handler->id.mask)); - } else { - memset (new_handler->id.mask, 0xFF, - sizeof (new_handler->id.mask)); - } - memset (new_handler->id.userid, 0x00, - sizeof (new_handler->id.userid)); - } - /* fill in the rest of handler */ - new_handler->pgm_data = pgm_data; - new_handler->interrupt_table = ops; - - /* - * Check if someone else is registered with same pgmname, userid - * and mask. If someone is already registered with same pgmname, - * userid and mask, registration will fail and NULL will be returned - * to the application. - * If identical handler not found, then handler is added to list. - */ - rc = iucv_add_handler(new_handler); - if (rc) { - printk(KERN_WARNING "%s: Someone already registered with same " - "pgmname, userid, pgmmask\n", __FUNCTION__); - kfree (new_handler); - return NULL; - } - - rc = iucv_declare_buffer(); - if (rc) { - char *err = "Unknown"; - iucv_remove_handler(new_handler); - kfree(new_handler); - switch(rc) { - case 0x03: - err = "Directory error"; - break; - case 0x0a: - err = "Invalid length"; - break; - case 0x13: - err = "Buffer already exists"; - break; - case 0x3e: - err = "Buffer overlap"; - break; - case 0x5c: - err = "Paging or storage error"; - break; - } - printk(KERN_WARNING "%s: iucv_declare_buffer " - "returned error 0x%02lx (%s)\n", __FUNCTION__, rc, err); - return NULL; - } - if (!register_flag) { - /* request the 0x4000 external interrupt */ - rc = register_external_interrupt (0x4000, iucv_irq_handler); - if (rc) { - iucv_remove_handler(new_handler); - kfree (new_handler); - printk(KERN_WARNING "%s: " - "register_external_interrupt returned %ld\n", - __FUNCTION__, rc); - return NULL; - - } - register_flag = 1; - } - iucv_debug(1, "exiting"); - return new_handler; -} /* end of register function */ - -/** - * iucv_unregister_program: - * @handle: address of handler - * - * Unregister application with IUCV. - * Returns: - * 0 on success, -EINVAL, if specified handle is invalid. - */ - -int -iucv_unregister_program (iucv_handle_t handle) -{ - handler *h = NULL; - struct list_head *lh; - int i; - ulong flags; - - iucv_debug(1, "entering"); - iucv_debug(1, "address of handler is %p", h); - - /* Checking if handle is valid */ - spin_lock_irqsave (&iucv_lock, flags); - list_for_each(lh, &iucv_handler_table) { - if ((handler *)handle == list_entry(lh, handler, list)) { - h = (handler *)handle; - break; - } - } - if (!h) { - spin_unlock_irqrestore (&iucv_lock, flags); - if (handle) - printk(KERN_WARNING - "%s: Handler not found in iucv_handler_table.\n", - __FUNCTION__); - else - printk(KERN_WARNING - "%s: NULL handle passed by application.\n", - __FUNCTION__); - return -EINVAL; - } - - /** - * First, walk thru iucv_pathid_table and sever any pathid which is - * still pointing to the handler to be removed. - */ - for (i = 0; i < max_connections; i++) - if (iucv_pathid_table[i] == h) { - spin_unlock_irqrestore (&iucv_lock, flags); - iucv_sever(i, h->id.user_data); - spin_lock_irqsave(&iucv_lock, flags); - } - spin_unlock_irqrestore (&iucv_lock, flags); - - iucv_remove_handler(h); - kfree(h); - - iucv_debug(1, "exiting"); - return 0; -} - -/** - * iucv_accept: - * @pathid: Path identification number - * @msglim_reqstd: The number of outstanding messages requested. - * @user_data: Data specified by the iucv_connect function. - * @flags1: Contains options for this path. - * - IPPRTY (0x20) Specifies if you want to send priority message. - * - IPRMDATA (0x80) Specifies whether your program can handle a message - * in the parameter list. - * - IPQUSCE (0x40) Specifies whether you want to quiesce the path being - * established. - * @handle: Address of handler. - * @pgm_data: Application data passed to interrupt handlers. - * @flags1_out: Pointer to an int. If not NULL, on return the options for - * the path are stored at the given location: - * - IPPRTY (0x20) Indicates you may send a priority message. - * @msglim: Pointer to an __u16. If not NULL, on return the maximum - * number of outstanding messages is stored at the given - * location. - * - * This function is issued after the user receives a Connection Pending external - * interrupt and now wishes to complete the IUCV communication path. - * Returns: - * return code from CP - */ -int -iucv_accept(__u16 pathid, __u16 msglim_reqstd, - __u8 user_data[16], int flags1, - iucv_handle_t handle, void *pgm_data, - int *flags1_out, __u16 * msglim) -{ - ulong b2f0_result = 0; - ulong flags; - struct list_head *lh; - handler *h = NULL; - iparml_control *parm; - - iucv_debug(1, "entering"); - iucv_debug(1, "pathid = %d", pathid); - - /* Checking if handle is valid */ - spin_lock_irqsave (&iucv_lock, flags); - list_for_each(lh, &iucv_handler_table) { - if ((handler *)handle == list_entry(lh, handler, list)) { - h = (handler *)handle; - break; - } - } - spin_unlock_irqrestore (&iucv_lock, flags); - - if (!h) { - if (handle) - printk(KERN_WARNING - "%s: Handler not found in iucv_handler_table.\n", - __FUNCTION__); - else - printk(KERN_WARNING - "%s: NULL handle passed by application.\n", - __FUNCTION__); - return -EINVAL; - } - - parm = (iparml_control *)grab_param(); - - parm->ippathid = pathid; - parm->ipmsglim = msglim_reqstd; - if (user_data) - memcpy(parm->ipuser, user_data, sizeof(parm->ipuser)); - - parm->ipflags1 = (__u8)flags1; - b2f0_result = b2f0(ACCEPT, parm); - - if (!b2f0_result) { - if (msglim) - *msglim = parm->ipmsglim; - if (pgm_data) - h->pgm_data = pgm_data; - if (flags1_out) - *flags1_out = (parm->ipflags1 & IPPRTY) ? IPPRTY : 0; - } - release_param(parm); - - iucv_debug(1, "exiting"); - return b2f0_result; -} - -/** - * iucv_connect: - * @pathid: Path identification number - * @msglim_reqstd: Number of outstanding messages requested - * @user_data: 16-byte user data - * @userid: 8-byte of user identification - * @system_name: 8-byte identifying the system name - * @flags1: Specifies options for this path: - * - IPPRTY (0x20) Specifies if you want to send priority message. - * - IPRMDATA (0x80) Specifies whether your program can handle a message - * in the parameter list. - * - IPQUSCE (0x40) Specifies whether you want to quiesce the path being - * established. - * - IPLOCAL (0x01) Allows an application to force the partner to be on the - * local system. If local is specified then target class - * cannot be specified. - * @flags1_out: Pointer to an int. If not NULL, on return the options for - * the path are stored at the given location: - * - IPPRTY (0x20) Indicates you may send a priority message. - * @msglim: Pointer to an __u16. If not NULL, on return the maximum - * number of outstanding messages is stored at the given - * location. - * @handle: Address of handler. - * @pgm_data: Application data to be passed to interrupt handlers. - * - * This function establishes an IUCV path. Although the connect may complete - * successfully, you are not able to use the path until you receive an IUCV - * Connection Complete external interrupt. - * Returns: return code from CP, or one of the following - * - ENOMEM - * - return code from iucv_declare_buffer - * - EINVAL - invalid handle passed by application - * - EINVAL - pathid address is NULL - * - ENOMEM - pathid table storage allocation failed - * - return code from internal function add_pathid - */ -int -iucv_connect (__u16 *pathid, __u16 msglim_reqstd, - __u8 user_data[16], __u8 userid[8], - __u8 system_name[8], int flags1, - int *flags1_out, __u16 * msglim, - iucv_handle_t handle, void *pgm_data) -{ - iparml_control *parm; - iparml_control local_parm; - struct list_head *lh; - ulong b2f0_result = 0; - ulong flags; - int add_pathid_result = 0; - handler *h = NULL; - __u8 no_memory[16] = "NO MEMORY"; - - iucv_debug(1, "entering"); - - /* Checking if handle is valid */ - spin_lock_irqsave (&iucv_lock, flags); - list_for_each(lh, &iucv_handler_table) { - if ((handler *)handle == list_entry(lh, handler, list)) { - h = (handler *)handle; - break; - } - } - spin_unlock_irqrestore (&iucv_lock, flags); - - if (!h) { - if (handle) - printk(KERN_WARNING - "%s: Handler not found in iucv_handler_table.\n", - __FUNCTION__); - else - printk(KERN_WARNING - "%s: NULL handle passed by application.\n", - __FUNCTION__); - return -EINVAL; - } - - if (pathid == NULL) { - printk(KERN_WARNING "%s: NULL pathid pointer\n", - __FUNCTION__); - return -EINVAL; - } - - parm = (iparml_control *)grab_param(); - - parm->ipmsglim = msglim_reqstd; - - if (user_data) - memcpy(parm->ipuser, user_data, sizeof(parm->ipuser)); - - if (userid) { - memcpy(parm->ipvmid, userid, sizeof(parm->ipvmid)); - ASCEBC(parm->ipvmid, sizeof(parm->ipvmid)); - EBC_TOUPPER(parm->ipvmid, sizeof(parm->ipvmid)); - } - - if (system_name) { - memcpy(parm->iptarget, system_name, sizeof(parm->iptarget)); - ASCEBC(parm->iptarget, sizeof(parm->iptarget)); - EBC_TOUPPER(parm->iptarget, sizeof(parm->iptarget)); - } - - /* In order to establish an IUCV connection, the procedure is: - * - * b2f0(CONNECT) - * take the ippathid from the b2f0 call - * register the handler to the ippathid - * - * Unfortunately, the ConnectionEstablished message gets sent after the - * b2f0(CONNECT) call but before the register is handled. - * - * In order for this race condition to be eliminated, the IUCV Control - * Interrupts must be disabled for the above procedure. - * - * David Kennedy <dkennedy@linuxcare.com> - */ - - /* Enable everything but IUCV Control messages */ - iucv_setmask(~(AllInterrupts)); - messagesDisabled = 1; - - spin_lock_irqsave (&iucv_lock, flags); - parm->ipflags1 = (__u8)flags1; - b2f0_result = b2f0(CONNECT, parm); - memcpy(&local_parm, parm, sizeof(local_parm)); - release_param(parm); - parm = &local_parm; - if (!b2f0_result) - add_pathid_result = __iucv_add_pathid(parm->ippathid, h); - spin_unlock_irqrestore (&iucv_lock, flags); - - if (b2f0_result) { - iucv_setmask(~0); - messagesDisabled = 0; - return b2f0_result; - } - - *pathid = parm->ippathid; - - /* Enable everything again */ - iucv_setmask(IUCVControlInterruptsFlag); - - if (msglim) - *msglim = parm->ipmsglim; - if (flags1_out) - *flags1_out = (parm->ipflags1 & IPPRTY) ? IPPRTY : 0; - - if (add_pathid_result) { - iucv_sever(*pathid, no_memory); - printk(KERN_WARNING "%s: add_pathid failed with rc =" - " %d\n", __FUNCTION__, add_pathid_result); - return(add_pathid_result); - } - - iucv_debug(1, "exiting"); - return b2f0_result; -} - -/** - * iucv_purge: - * @pathid: Path identification number - * @msgid: Message ID of message to purge. - * @srccls: Message class of the message to purge. - * @audit: Pointer to an __u32. If not NULL, on return, information about - * asynchronous errors that may have affected the normal completion - * of this message ist stored at the given location. - * - * Cancels a message you have sent. - * Returns: return code from CP - */ -int -iucv_purge (__u16 pathid, __u32 msgid, __u32 srccls, __u32 *audit) -{ - iparml_purge *parm; - ulong b2f0_result = 0; - - iucv_debug(1, "entering"); - iucv_debug(1, "pathid = %d", pathid); - - parm = (iparml_purge *)grab_param(); - - parm->ipmsgid = msgid; - parm->ippathid = pathid; - parm->ipsrccls = srccls; - parm->ipflags1 |= (IPSRCCLS | IPFGMID | IPFGPID); - b2f0_result = b2f0(PURGE, parm); - - if (!b2f0_result && audit) { - memcpy(audit, parm->ipaudit, sizeof(parm->ipaudit)); - /* parm->ipaudit has only 3 bytes */ - *audit >>= 8; - } - - release_param(parm); - - iucv_debug(1, "b2f0_result = %ld", b2f0_result); - iucv_debug(1, "exiting"); - return b2f0_result; -} - -/** - * iucv_query_generic: - * @want_maxconn: Flag, describing which value is to be returned. - * - * Helper function for iucv_query_maxconn() and iucv_query_bufsize(). - * - * Returns: The buffersize, if want_maxconn is 0; the maximum number of - * connections, if want_maxconn is 1 or an error-code < 0 on failure. - */ -static int -iucv_query_generic(int want_maxconn) -{ - register unsigned long reg0 asm ("0"); - register unsigned long reg1 asm ("1"); - iparml_purge *parm = (iparml_purge *)grab_param(); - int bufsize, maxconn; - int ccode; - - /** - * Call b2f0 and store R0 (max buffer size), - * R1 (max connections) and CC. - */ - reg0 = QUERY; - reg1 = virt_to_phys(parm); - asm volatile( - " .long 0xb2f01000\n" - " ipm %0\n" - " srl %0,28\n" - : "=d" (ccode), "+d" (reg0), "+d" (reg1) : : "cc"); - bufsize = reg0; - maxconn = reg1; - release_param(parm); - - if (ccode) - return -EPERM; - if (want_maxconn) - return maxconn; - return bufsize; -} - -/** - * iucv_query_maxconn: - * - * Determines the maximum number of connections thay may be established. - * - * Returns: Maximum number of connections that can be. - */ -ulong -iucv_query_maxconn(void) -{ - return iucv_query_generic(1); -} - -/** - * iucv_query_bufsize: - * - * Determines the size of the external interrupt buffer. - * - * Returns: Size of external interrupt buffer. - */ -ulong -iucv_query_bufsize (void) -{ - return iucv_query_generic(0); -} - -/** - * iucv_quiesce: - * @pathid: Path identification number - * @user_data: 16-byte user data - * - * Temporarily suspends incoming messages on an IUCV path. - * You can later reactivate the path by invoking the iucv_resume function. - * Returns: return code from CP - */ -int -iucv_quiesce (__u16 pathid, __u8 user_data[16]) -{ - iparml_control *parm; - ulong b2f0_result = 0; - - iucv_debug(1, "entering"); - iucv_debug(1, "pathid = %d", pathid); - - parm = (iparml_control *)grab_param(); - - memcpy(parm->ipuser, user_data, sizeof(parm->ipuser)); - parm->ippathid = pathid; - - b2f0_result = b2f0(QUIESCE, parm); - release_param(parm); - - iucv_debug(1, "b2f0_result = %ld", b2f0_result); - iucv_debug(1, "exiting"); - - return b2f0_result; -} - -/** - * iucv_receive: - * @pathid: Path identification number. - * @buffer: Address of buffer to receive. Must be below 2G. - * @buflen: Length of buffer to receive. - * @msgid: Specifies the message ID. - * @trgcls: Specifies target class. - * @flags1_out: Receives options for path on return. - * - IPNORPY (0x10) Specifies whether a reply is required - * - IPPRTY (0x20) Specifies if you want to send priority message - * - IPRMDATA (0x80) Specifies the data is contained in the parameter list - * @residual_buffer: Receives the address of buffer updated by the number - * of bytes you have received on return. - * @residual_length: On return, receives one of the following values: - * - 0 If the receive buffer is the same length as - * the message. - * - Remaining bytes in buffer If the receive buffer is longer than the - * message. - * - Remaining bytes in message If the receive buffer is shorter than the - * message. - * - * This function receives messages that are being sent to you over established - * paths. - * Returns: return code from CP IUCV call; If the receive buffer is shorter - * than the message, always 5 - * -EINVAL - buffer address is pointing to NULL - */ -int -iucv_receive (__u16 pathid, __u32 msgid, __u32 trgcls, - void *buffer, ulong buflen, - int *flags1_out, ulong * residual_buffer, ulong * residual_length) -{ - iparml_db *parm; - ulong b2f0_result; - int moved = 0; /* number of bytes moved from parmlist to buffer */ - - iucv_debug(2, "entering"); - - if (!buffer) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ipbfadr1 = (__u32) (addr_t) buffer; - parm->ipbfln1f = (__u32) ((ulong) buflen); - parm->ipmsgid = msgid; - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipflags1 = (IPFGPID | IPFGMID | IPFGMCL); - - b2f0_result = b2f0(RECEIVE, parm); - - if (!b2f0_result || b2f0_result == 5) { - if (flags1_out) { - iucv_debug(2, "*flags1_out = %d", *flags1_out); - *flags1_out = (parm->ipflags1 & (~0x07)); - iucv_debug(2, "*flags1_out = %d", *flags1_out); - } - - if (!(parm->ipflags1 & IPRMDATA)) { /*msg not in parmlist */ - if (residual_length) - *residual_length = parm->ipbfln1f; - - if (residual_buffer) - *residual_buffer = parm->ipbfadr1; - } else { - moved = min_t (unsigned long, buflen, 8); - - memcpy ((char *) buffer, - (char *) &parm->ipbfadr1, moved); - - if (buflen < 8) - b2f0_result = 5; - - if (residual_length) - *residual_length = abs (buflen - 8); - - if (residual_buffer) - *residual_buffer = (ulong) (buffer + moved); - } - } - release_param(parm); - - iucv_debug(2, "exiting"); - return b2f0_result; -} - -/* - * Name: iucv_receive_array - * Purpose: This function receives messages that are being sent to you - * over established paths. - * Input: pathid - path identification number - * buffer - address of array of buffers - * buflen - total length of buffers - * msgid - specifies the message ID. - * trgcls - specifies target class - * Output: - * flags1_out: Options for path. - * IPNORPY - 0x10 specifies whether a reply is required - * IPPRTY - 0x20 specifies if you want to send priority message - * IPRMDATA - 0x80 specifies the data is contained in the parameter list - * residual_buffer - address points to the current list entry IUCV - * is working on. - * residual_length - - * Contains one of the following values, if the receive buffer is: - * The same length as the message, this field is zero. - * Longer than the message, this field contains the number of - * bytes remaining in the buffer. - * Shorter than the message, this field contains the residual - * count (that is, the number of bytes remaining in the - * message that does not fit into the buffer. In this case - * b2f0_result = 5. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer address is NULL - */ -int -iucv_receive_array (__u16 pathid, - __u32 msgid, __u32 trgcls, - iucv_array_t * buffer, ulong buflen, - int *flags1_out, - ulong * residual_buffer, ulong * residual_length) -{ - iparml_db *parm; - ulong b2f0_result; - int i = 0, moved = 0, need_to_move = 8, dyn_len; - - iucv_debug(2, "entering"); - - if (!buffer) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ipbfadr1 = (__u32) ((ulong) buffer); - parm->ipbfln1f = (__u32) buflen; - parm->ipmsgid = msgid; - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipflags1 = (IPBUFLST | IPFGPID | IPFGMID | IPFGMCL); - - b2f0_result = b2f0(RECEIVE, parm); - - if (!b2f0_result || b2f0_result == 5) { - - if (flags1_out) { - iucv_debug(2, "*flags1_out = %d", *flags1_out); - *flags1_out = (parm->ipflags1 & (~0x07)); - iucv_debug(2, "*flags1_out = %d", *flags1_out); - } - - if (!(parm->ipflags1 & IPRMDATA)) { /*msg not in parmlist */ - - if (residual_length) - *residual_length = parm->ipbfln1f; - - if (residual_buffer) - *residual_buffer = parm->ipbfadr1; - - } else { - /* copy msg from parmlist to users array. */ - - while ((moved < 8) && (moved < buflen)) { - dyn_len = - min_t (unsigned int, - (buffer + i)->length, need_to_move); - - memcpy ((char *)((ulong)((buffer + i)->address)), - ((char *) &parm->ipbfadr1) + moved, - dyn_len); - - moved += dyn_len; - need_to_move -= dyn_len; - - (buffer + i)->address = - (__u32) - ((ulong)(__u8 *) ((ulong)(buffer + i)->address) - + dyn_len); - - (buffer + i)->length -= dyn_len; - i++; - } - - if (need_to_move) /* buflen < 8 bytes */ - b2f0_result = 5; - - if (residual_length) - *residual_length = abs (buflen - 8); - - if (residual_buffer) { - if (!moved) - *residual_buffer = (ulong) buffer; - else - *residual_buffer = - (ulong) (buffer + (i - 1)); - } - - } - } - release_param(parm); - - iucv_debug(2, "exiting"); - return b2f0_result; -} - -/** - * iucv_reject: - * @pathid: Path identification number. - * @msgid: Message ID of the message to reject. - * @trgcls: Target class of the message to reject. - * Returns: return code from CP - * - * Refuses a specified message. Between the time you are notified of a - * message and the time that you complete the message, the message may - * be rejected. - */ -int -iucv_reject (__u16 pathid, __u32 msgid, __u32 trgcls) -{ - iparml_db *parm; - ulong b2f0_result = 0; - - iucv_debug(1, "entering"); - iucv_debug(1, "pathid = %d", pathid); - - parm = (iparml_db *)grab_param(); - - parm->ippathid = pathid; - parm->ipmsgid = msgid; - parm->iptrgcls = trgcls; - parm->ipflags1 = (IPFGMCL | IPFGMID | IPFGPID); - - b2f0_result = b2f0(REJECT, parm); - release_param(parm); - - iucv_debug(1, "b2f0_result = %ld", b2f0_result); - iucv_debug(1, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_reply - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * Input: pathid - path identification number - * msgid - specifies the message ID. - * trgcls - specifies target class - * flags1 - option for path - * IPPRTY- 0x20 - specifies if you want to send priority message - * buffer - address of reply buffer - * buflen - length of reply buffer - * Output: ipbfadr2 - Address of buffer updated by the number - * of bytes you have moved. - * ipbfln2f - Contains one of the following values: - * If the answer buffer is the same length as the reply, this field - * contains zero. - * If the answer buffer is longer than the reply, this field contains - * the number of bytes remaining in the buffer. - * If the answer buffer is shorter than the reply, this field contains - * a residual count (that is, the number of bytes remianing in the - * reply that does not fit into the buffer. In this - * case b2f0_result = 5. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer address is NULL - */ -int -iucv_reply (__u16 pathid, - __u32 msgid, __u32 trgcls, - int flags1, - void *buffer, ulong buflen, ulong * ipbfadr2, ulong * ipbfln2f) -{ - iparml_db *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!buffer) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ipbfadr2 = (__u32) ((ulong) buffer); - parm->ipbfln2f = (__u32) buflen; /* length of message */ - parm->ippathid = pathid; - parm->ipmsgid = msgid; - parm->iptrgcls = trgcls; - parm->ipflags1 = (__u8) flags1; /* priority message */ - - b2f0_result = b2f0(REPLY, parm); - - if ((!b2f0_result) || (b2f0_result == 5)) { - if (ipbfadr2) - *ipbfadr2 = parm->ipbfadr2; - if (ipbfln2f) - *ipbfln2f = parm->ipbfln2f; - } - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_reply_array - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * The array identifies a list of addresses and lengths of - * discontiguous buffers that contains the reply data. - * Input: pathid - path identification number - * msgid - specifies the message ID. - * trgcls - specifies target class - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * buffer - address of array of reply buffers - * buflen - total length of reply buffers - * Output: ipbfadr2 - Address of buffer which IUCV is currently working on. - * ipbfln2f - Contains one of the following values: - * If the answer buffer is the same length as the reply, this field - * contains zero. - * If the answer buffer is longer than the reply, this field contains - * the number of bytes remaining in the buffer. - * If the answer buffer is shorter than the reply, this field contains - * a residual count (that is, the number of bytes remianing in the - * reply that does not fit into the buffer. In this - * case b2f0_result = 5. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer address is NULL -*/ -int -iucv_reply_array (__u16 pathid, - __u32 msgid, __u32 trgcls, - int flags1, - iucv_array_t * buffer, - ulong buflen, ulong * ipbfadr2, ulong * ipbfln2f) -{ - iparml_db *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!buffer) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ipbfadr2 = (__u32) ((ulong) buffer); - parm->ipbfln2f = buflen; /* length of message */ - parm->ippathid = pathid; - parm->ipmsgid = msgid; - parm->iptrgcls = trgcls; - parm->ipflags1 = (IPANSLST | flags1); - - b2f0_result = b2f0(REPLY, parm); - - if ((!b2f0_result) || (b2f0_result == 5)) { - - if (ipbfadr2) - *ipbfadr2 = parm->ipbfadr2; - if (ipbfln2f) - *ipbfln2f = parm->ipbfln2f; - } - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_reply_prmmsg - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * Prmmsg signifies the data is moved into the - * parameter list. - * Input: pathid - path identification number - * msgid - specifies the message ID. - * trgcls - specifies target class - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * prmmsg - 8-bytes of data to be placed into the parameter - * list. - * Output: NA - * Return: b2f0_result - return code from CP -*/ -int -iucv_reply_prmmsg (__u16 pathid, - __u32 msgid, __u32 trgcls, int flags1, __u8 prmmsg[8]) -{ - iparml_dpl *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - parm = (iparml_dpl *)grab_param(); - - parm->ippathid = pathid; - parm->ipmsgid = msgid; - parm->iptrgcls = trgcls; - memcpy(parm->iprmmsg, prmmsg, sizeof (parm->iprmmsg)); - parm->ipflags1 = (IPRMDATA | flags1); - - b2f0_result = b2f0(REPLY, parm); - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/** - * iucv_resume: - * @pathid: Path identification number - * @user_data: 16-byte of user data - * - * This function restores communication over a quiesced path. - * Returns: return code from CP - */ -int -iucv_resume (__u16 pathid, __u8 user_data[16]) -{ - iparml_control *parm; - ulong b2f0_result = 0; - - iucv_debug(1, "entering"); - iucv_debug(1, "pathid = %d", pathid); - - parm = (iparml_control *)grab_param(); - - memcpy (parm->ipuser, user_data, sizeof (*user_data)); - parm->ippathid = pathid; - - b2f0_result = b2f0(RESUME, parm); - release_param(parm); - - iucv_debug(1, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_send - * Purpose: sends messages - * Input: pathid - ushort, pathid - * msgid - ulong *, id of message returned to caller - * trgcls - ulong, target message class - * srccls - ulong, source message class - * msgtag - ulong, message tag - * flags1 - Contains options for this path. - * IPPRTY - Ox20 - specifies if you want to send a priority message. - * buffer - pointer to buffer - * buflen - ulong, length of buffer - * Output: b2f0_result - return code from b2f0 call - * msgid - returns message id - */ -int -iucv_send (__u16 pathid, __u32 * msgid, - __u32 trgcls, __u32 srccls, - __u32 msgtag, int flags1, void *buffer, ulong buflen) -{ - iparml_db *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!buffer) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ipbfadr1 = (__u32) ((ulong) buffer); - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipbfln1f = (__u32) buflen; /* length of message */ - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipflags1 = (IPNORPY | flags1); /* one way priority message */ - - b2f0_result = b2f0(SEND, parm); - - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_send_array - * Purpose: This function transmits data to another application. - * The contents of buffer is the address of the array of - * addresses and lengths of discontiguous buffers that hold - * the message text. This is a one-way message and the - * receiver will not reply to the message. - * Input: pathid - path identification number - * trgcls - specifies target class - * srccls - specifies the source message class - * msgtag - specifies a tag to be associated witht the message - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * buffer - address of array of send buffers - * buflen - total length of send buffers - * Output: msgid - specifies the message ID. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer address is NULL - */ -int -iucv_send_array (__u16 pathid, - __u32 * msgid, - __u32 trgcls, - __u32 srccls, - __u32 msgtag, int flags1, iucv_array_t * buffer, ulong buflen) -{ - iparml_db *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!buffer) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipbfadr1 = (__u32) ((ulong) buffer); - parm->ipbfln1f = (__u32) buflen; /* length of message */ - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipflags1 = (IPNORPY | IPBUFLST | flags1); - b2f0_result = b2f0(SEND, parm); - - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - return b2f0_result; -} - -/* - * Name: iucv_send_prmmsg - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a one-way message and the - * receiver will not reply to the message. - * Input: pathid - path identification number - * trgcls - specifies target class - * srccls - specifies the source message class - * msgtag - specifies a tag to be associated with the message - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * prmmsg - 8-bytes of data to be placed into parameter list - * Output: msgid - specifies the message ID. - * Return: b2f0_result - return code from CP -*/ -int -iucv_send_prmmsg (__u16 pathid, - __u32 * msgid, - __u32 trgcls, - __u32 srccls, __u32 msgtag, int flags1, __u8 prmmsg[8]) -{ - iparml_dpl *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - parm = (iparml_dpl *)grab_param(); - - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipflags1 = (IPRMDATA | IPNORPY | flags1); - memcpy(parm->iprmmsg, prmmsg, sizeof(parm->iprmmsg)); - - b2f0_result = b2f0(SEND, parm); - - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_send2way - * Purpose: This function transmits data to another application. - * Data to be transmitted is in a buffer. The receiver - * of the send is expected to reply to the message and - * a buffer is provided into which IUCV moves the reply - * to this message. - * Input: pathid - path identification number - * trgcls - specifies target class - * srccls - specifies the source message class - * msgtag - specifies a tag associated with the message - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * buffer - address of send buffer - * buflen - length of send buffer - * ansbuf - address of buffer to reply with - * anslen - length of buffer to reply with - * Output: msgid - specifies the message ID. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer or ansbuf address is NULL - */ -int -iucv_send2way (__u16 pathid, - __u32 * msgid, - __u32 trgcls, - __u32 srccls, - __u32 msgtag, - int flags1, - void *buffer, ulong buflen, void *ansbuf, ulong anslen) -{ - iparml_db *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!buffer || !ansbuf) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipbfadr1 = (__u32) ((ulong) buffer); - parm->ipbfln1f = (__u32) buflen; /* length of message */ - parm->ipbfadr2 = (__u32) ((ulong) ansbuf); - parm->ipbfln2f = (__u32) anslen; - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipflags1 = flags1; /* priority message */ - - b2f0_result = b2f0(SEND, parm); - - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_send2way_array - * Purpose: This function transmits data to another application. - * The contents of buffer is the address of the array of - * addresses and lengths of discontiguous buffers that hold - * the message text. The receiver of the send is expected to - * reply to the message and a buffer is provided into which - * IUCV moves the reply to this message. - * Input: pathid - path identification number - * trgcls - specifies target class - * srccls - specifies the source message class - * msgtag - spcifies a tag to be associated with the message - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * buffer - address of array of send buffers - * buflen - total length of send buffers - * ansbuf - address of buffer to reply with - * anslen - length of buffer to reply with - * Output: msgid - specifies the message ID. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer address is NULL - */ -int -iucv_send2way_array (__u16 pathid, - __u32 * msgid, - __u32 trgcls, - __u32 srccls, - __u32 msgtag, - int flags1, - iucv_array_t * buffer, - ulong buflen, iucv_array_t * ansbuf, ulong anslen) -{ - iparml_db *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!buffer || !ansbuf) - return -EINVAL; - - parm = (iparml_db *)grab_param(); - - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipbfadr1 = (__u32) ((ulong) buffer); - parm->ipbfln1f = (__u32) buflen; /* length of message */ - parm->ipbfadr2 = (__u32) ((ulong) ansbuf); - parm->ipbfln2f = (__u32) anslen; - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipflags1 = (IPBUFLST | IPANSLST | flags1); - b2f0_result = b2f0(SEND, parm); - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - return b2f0_result; -} - -/* - * Name: iucv_send2way_prmmsg - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a two-way message and the - * receiver of the message is expected to reply. A buffer - * is provided into which IUCV moves the reply to this - * message. - * Input: pathid - path identification number - * trgcls - specifies target class - * srccls - specifies the source message class - * msgtag - specifies a tag to be associated with the message - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * prmmsg - 8-bytes of data to be placed in parameter list - * ansbuf - address of buffer to reply with - * anslen - length of buffer to reply with - * Output: msgid - specifies the message ID. - * Return: b2f0_result - return code from CP - * (-EINVAL) - buffer address is NULL -*/ -int -iucv_send2way_prmmsg (__u16 pathid, - __u32 * msgid, - __u32 trgcls, - __u32 srccls, - __u32 msgtag, - ulong flags1, __u8 prmmsg[8], void *ansbuf, ulong anslen) -{ - iparml_dpl *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!ansbuf) - return -EINVAL; - - parm = (iparml_dpl *)grab_param(); - - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipbfadr2 = (__u32) ((ulong) ansbuf); - parm->ipbfln2f = (__u32) anslen; - parm->ipflags1 = (IPRMDATA | flags1); /* message in prmlist */ - memcpy(parm->iprmmsg, prmmsg, sizeof(parm->iprmmsg)); - - b2f0_result = b2f0(SEND, parm); - - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - - return b2f0_result; -} - -/* - * Name: iucv_send2way_prmmsg_array - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a two-way message and the - * receiver of the message is expected to reply. A buffer - * is provided into which IUCV moves the reply to this - * message. The contents of ansbuf is the address of the - * array of addresses and lengths of discontiguous buffers - * that contain the reply. - * Input: pathid - path identification number - * trgcls - specifies target class - * srccls - specifies the source message class - * msgtag - specifies a tag to be associated with the message - * flags1 - option for path - * IPPRTY- specifies if you want to send priority message - * prmmsg - 8-bytes of data to be placed into the parameter list - * ansbuf - address of buffer to reply with - * anslen - length of buffer to reply with - * Output: msgid - specifies the message ID. - * Return: b2f0_result - return code from CP - * (-EINVAL) - ansbuf address is NULL - */ -int -iucv_send2way_prmmsg_array (__u16 pathid, - __u32 * msgid, - __u32 trgcls, - __u32 srccls, - __u32 msgtag, - int flags1, - __u8 prmmsg[8], - iucv_array_t * ansbuf, ulong anslen) -{ - iparml_dpl *parm; - ulong b2f0_result; - - iucv_debug(2, "entering"); - - if (!ansbuf) - return -EINVAL; - - parm = (iparml_dpl *)grab_param(); - - parm->ippathid = pathid; - parm->iptrgcls = trgcls; - parm->ipsrccls = srccls; - parm->ipmsgtag = msgtag; - parm->ipbfadr2 = (__u32) ((ulong) ansbuf); - parm->ipbfln2f = (__u32) anslen; - parm->ipflags1 = (IPRMDATA | IPANSLST | flags1); - memcpy(parm->iprmmsg, prmmsg, sizeof(parm->iprmmsg)); - b2f0_result = b2f0(SEND, parm); - if ((!b2f0_result) && (msgid)) - *msgid = parm->ipmsgid; - release_param(parm); - - iucv_debug(2, "exiting"); - return b2f0_result; -} - -void -iucv_setmask_cpuid (void *result) -{ - iparml_set_mask *parm; - - iucv_debug(1, "entering"); - parm = (iparml_set_mask *)grab_param(); - parm->ipmask = *((__u8*)result); - *((ulong *)result) = b2f0(SETMASK, parm); - release_param(parm); - - iucv_debug(1, "b2f0_result = %ld", *((ulong *)result)); - iucv_debug(1, "exiting"); -} - -/* - * Name: iucv_setmask - * Purpose: This function enables or disables the following IUCV - * external interruptions: Nonpriority and priority message - * interrupts, nonpriority and priority reply interrupts. - * Input: SetMaskFlag - options for interrupts - * 0x80 - Nonpriority_MessagePendingInterruptsFlag - * 0x40 - Priority_MessagePendingInterruptsFlag - * 0x20 - Nonpriority_MessageCompletionInterruptsFlag - * 0x10 - Priority_MessageCompletionInterruptsFlag - * 0x08 - IUCVControlInterruptsFlag - * Output: NA - * Return: b2f0_result - return code from CP -*/ -int -iucv_setmask (int SetMaskFlag) -{ - union { - ulong result; - __u8 param; - } u; - int cpu; - - u.param = SetMaskFlag; - cpu = get_cpu(); - smp_call_function_on(iucv_setmask_cpuid, &u, 0, 1, iucv_cpuid); - put_cpu(); - - return u.result; -} - -/** - * iucv_sever: - * @pathid: Path identification number - * @user_data: 16-byte of user data - * - * This function terminates an iucv path. - * Returns: return code from CP - */ -int -iucv_sever(__u16 pathid, __u8 user_data[16]) -{ - iparml_control *parm; - ulong b2f0_result = 0; - - iucv_debug(1, "entering"); - parm = (iparml_control *)grab_param(); - - memcpy(parm->ipuser, user_data, sizeof(parm->ipuser)); - parm->ippathid = pathid; - - b2f0_result = b2f0(SEVER, parm); - - if (!b2f0_result) - iucv_remove_pathid(pathid); - release_param(parm); - - iucv_debug(1, "exiting"); - return b2f0_result; -} - -/* - * Interrupt Handlers - *******************************************************************************/ - -/** - * iucv_irq_handler: - * @regs: Current registers - * @code: irq code - * - * Handles external interrupts coming in from CP. - * Places the interrupt buffer on a queue and schedules iucv_tasklet_handler(). - */ -static void -iucv_irq_handler(__u16 code) -{ - iucv_irqdata *irqdata; - - irqdata = kmalloc(sizeof(iucv_irqdata), GFP_ATOMIC); - if (!irqdata) { - printk(KERN_WARNING "%s: out of memory\n", __FUNCTION__); - return; - } - - memcpy(&irqdata->data, iucv_external_int_buffer, - sizeof(iucv_GeneralInterrupt)); - - spin_lock(&iucv_irq_queue_lock); - list_add_tail(&irqdata->queue, &iucv_irq_queue); - spin_unlock(&iucv_irq_queue_lock); - - tasklet_schedule(&iucv_tasklet); -} - -/** - * iucv_do_int: - * @int_buf: Pointer to copy of external interrupt buffer - * - * The workhorse for handling interrupts queued by iucv_irq_handler(). - * This function is called from the bottom half iucv_tasklet_handler(). - */ -static void -iucv_do_int(iucv_GeneralInterrupt * int_buf) -{ - handler *h = NULL; - struct list_head *lh; - ulong flags; - iucv_interrupt_ops_t *interrupt = NULL; /* interrupt addresses */ - __u8 temp_buff1[24], temp_buff2[24]; /* masked handler id. */ - int rc = 0, j = 0; - __u8 no_listener[16] = "NO LISTENER"; - - iucv_debug(2, "entering, pathid %d, type %02X", - int_buf->ippathid, int_buf->iptype); - iucv_dumpit("External Interrupt Buffer:", - int_buf, sizeof(iucv_GeneralInterrupt)); - - ASCEBC (no_listener, 16); - - if (int_buf->iptype != 01) { - if ((int_buf->ippathid) > (max_connections - 1)) { - printk(KERN_WARNING "%s: Got interrupt with pathid %d" - " > max_connections (%ld)\n", __FUNCTION__, - int_buf->ippathid, max_connections - 1); - } else { - h = iucv_pathid_table[int_buf->ippathid]; - interrupt = h->interrupt_table; - iucv_dumpit("Handler:", h, sizeof(handler)); - } - } - - /* end of if statement */ - switch (int_buf->iptype) { - case 0x01: /* connection pending */ - if (messagesDisabled) { - iucv_setmask(~0); - messagesDisabled = 0; - } - spin_lock_irqsave(&iucv_lock, flags); - list_for_each(lh, &iucv_handler_table) { - h = list_entry(lh, handler, list); - memcpy(temp_buff1, &(int_buf->ipvmid), 24); - memcpy(temp_buff2, &(h->id.userid), 24); - for (j = 0; j < 24; j++) { - temp_buff1[j] &= (h->id.mask)[j]; - temp_buff2[j] &= (h->id.mask)[j]; - } - - iucv_dumpit("temp_buff1:", - temp_buff1, sizeof(temp_buff1)); - iucv_dumpit("temp_buff2", - temp_buff2, sizeof(temp_buff2)); - - if (!memcmp (temp_buff1, temp_buff2, 24)) { - - iucv_debug(2, - "found a matching handler"); - break; - } else - h = NULL; - } - spin_unlock_irqrestore (&iucv_lock, flags); - if (h) { - /* ADD PATH TO PATHID TABLE */ - rc = iucv_add_pathid(int_buf->ippathid, h); - if (rc) { - iucv_sever (int_buf->ippathid, - no_listener); - iucv_debug(1, - "add_pathid failed, rc = %d", - rc); - } else { - interrupt = h->interrupt_table; - if (interrupt->ConnectionPending) { - EBCASC (int_buf->ipvmid, 8); - interrupt->ConnectionPending( - (iucv_ConnectionPending *)int_buf, - h->pgm_data); - } else - iucv_sever(int_buf->ippathid, - no_listener); - } - } else - iucv_sever(int_buf->ippathid, no_listener); - break; - - case 0x02: /*connection complete */ - if (messagesDisabled) { - iucv_setmask(~0); - messagesDisabled = 0; - } - if (h) { - if (interrupt->ConnectionComplete) - { - interrupt->ConnectionComplete( - (iucv_ConnectionComplete *)int_buf, - h->pgm_data); - } - else - iucv_debug(1, - "ConnectionComplete not called"); - } else - iucv_sever(int_buf->ippathid, no_listener); - break; - - case 0x03: /* connection severed */ - if (messagesDisabled) { - iucv_setmask(~0); - messagesDisabled = 0; - } - if (h) { - if (interrupt->ConnectionSevered) - interrupt->ConnectionSevered( - (iucv_ConnectionSevered *)int_buf, - h->pgm_data); - - else - iucv_sever (int_buf->ippathid, no_listener); - } else - iucv_sever(int_buf->ippathid, no_listener); - break; - - case 0x04: /* connection quiesced */ - if (messagesDisabled) { - iucv_setmask(~0); - messagesDisabled = 0; - } - if (h) { - if (interrupt->ConnectionQuiesced) - interrupt->ConnectionQuiesced( - (iucv_ConnectionQuiesced *)int_buf, - h->pgm_data); - else - iucv_debug(1, - "ConnectionQuiesced not called"); - } - break; - - case 0x05: /* connection resumed */ - if (messagesDisabled) { - iucv_setmask(~0); - messagesDisabled = 0; - } - if (h) { - if (interrupt->ConnectionResumed) - interrupt->ConnectionResumed( - (iucv_ConnectionResumed *)int_buf, - h->pgm_data); - else - iucv_debug(1, - "ConnectionResumed not called"); - } - break; - - case 0x06: /* priority message complete */ - case 0x07: /* nonpriority message complete */ - if (h) { - if (interrupt->MessageComplete) - interrupt->MessageComplete( - (iucv_MessageComplete *)int_buf, - h->pgm_data); - else - iucv_debug(2, - "MessageComplete not called"); - } - break; - - case 0x08: /* priority message pending */ - case 0x09: /* nonpriority message pending */ - if (h) { - if (interrupt->MessagePending) - interrupt->MessagePending( - (iucv_MessagePending *) int_buf, - h->pgm_data); - else - iucv_debug(2, - "MessagePending not called"); - } - break; - default: /* unknown iucv type */ - printk(KERN_WARNING "%s: unknown iucv interrupt\n", - __FUNCTION__); - break; - } /* end switch */ - - iucv_debug(2, "exiting pathid %d, type %02X", - int_buf->ippathid, int_buf->iptype); - - return; -} - -/** - * iucv_tasklet_handler: - * - * This function loops over the queue of irq buffers and runs iucv_do_int() - * on every queue element. - */ -static void -iucv_tasklet_handler(unsigned long ignored) -{ - struct list_head head; - struct list_head *next; - ulong flags; - - spin_lock_irqsave(&iucv_irq_queue_lock, flags); - list_add(&head, &iucv_irq_queue); - list_del_init(&iucv_irq_queue); - spin_unlock_irqrestore (&iucv_irq_queue_lock, flags); - - next = head.next; - while (next != &head) { - iucv_irqdata *p = list_entry(next, iucv_irqdata, queue); - - next = next->next; - iucv_do_int(&p->data); - kfree(p); - } - - return; -} - -subsys_initcall(iucv_init); -module_exit(iucv_exit); - -/** - * Export all public stuff - */ -EXPORT_SYMBOL (iucv_bus); -EXPORT_SYMBOL (iucv_root); -EXPORT_SYMBOL (iucv_accept); -EXPORT_SYMBOL (iucv_connect); -#if 0 -EXPORT_SYMBOL (iucv_purge); -EXPORT_SYMBOL (iucv_query_maxconn); -EXPORT_SYMBOL (iucv_query_bufsize); -EXPORT_SYMBOL (iucv_quiesce); -#endif -EXPORT_SYMBOL (iucv_receive); -#if 0 -EXPORT_SYMBOL (iucv_receive_array); -#endif -EXPORT_SYMBOL (iucv_reject); -#if 0 -EXPORT_SYMBOL (iucv_reply); -EXPORT_SYMBOL (iucv_reply_array); -EXPORT_SYMBOL (iucv_resume); -#endif -EXPORT_SYMBOL (iucv_reply_prmmsg); -EXPORT_SYMBOL (iucv_send); -EXPORT_SYMBOL (iucv_send2way); -EXPORT_SYMBOL (iucv_send2way_array); -EXPORT_SYMBOL (iucv_send2way_prmmsg); -EXPORT_SYMBOL (iucv_send2way_prmmsg_array); -#if 0 -EXPORT_SYMBOL (iucv_send_array); -EXPORT_SYMBOL (iucv_send_prmmsg); -EXPORT_SYMBOL (iucv_setmask); -#endif -EXPORT_SYMBOL (iucv_sever); -EXPORT_SYMBOL (iucv_register_program); -EXPORT_SYMBOL (iucv_unregister_program); diff --git a/drivers/s390/net/iucv.h b/drivers/s390/net/iucv.h deleted file mode 100644 index 5b6b1b7241c9..000000000000 --- a/drivers/s390/net/iucv.h +++ /dev/null @@ -1,849 +0,0 @@ -/* - * drivers/s390/net/iucv.h - * IUCV base support. - * - * S390 version - * Copyright (C) 2000 IBM Corporation - * Author(s):Alan Altmark (Alan_Altmark@us.ibm.com) - * Xenia Tkatschow (xenia@us.ibm.com) - * - * - * Functionality: - * To explore any of the IUCV functions, one must first register - * their program using iucv_register_program(). Once your program has - * successfully completed a register, it can exploit the other functions. - * For furthur reference on all IUCV functionality, refer to the - * CP Programming Services book, also available on the web - * thru www.ibm.com/s390/vm/pubs, manual # SC24-5760 - * - * Definition of Return Codes - * -All positive return codes including zero are reflected back - * from CP except for iucv_register_program. The definition of each - * return code can be found in CP Programming Services book. - * Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760 - * - Return Code of: - * (-EINVAL) Invalid value - * (-ENOMEM) storage allocation failed - * pgmask defined in iucv_register_program will be set depending on input - * paramters. - * - */ - -#include <linux/types.h> -#include <asm/debug.h> - -/** - * Debug Facility stuff - */ -#define IUCV_DBF_SETUP_NAME "iucv_setup" -#define IUCV_DBF_SETUP_LEN 32 -#define IUCV_DBF_SETUP_PAGES 2 -#define IUCV_DBF_SETUP_NR_AREAS 1 -#define IUCV_DBF_SETUP_LEVEL 3 - -#define IUCV_DBF_DATA_NAME "iucv_data" -#define IUCV_DBF_DATA_LEN 128 -#define IUCV_DBF_DATA_PAGES 2 -#define IUCV_DBF_DATA_NR_AREAS 1 -#define IUCV_DBF_DATA_LEVEL 2 - -#define IUCV_DBF_TRACE_NAME "iucv_trace" -#define IUCV_DBF_TRACE_LEN 16 -#define IUCV_DBF_TRACE_PAGES 4 -#define IUCV_DBF_TRACE_NR_AREAS 1 -#define IUCV_DBF_TRACE_LEVEL 3 - -#define IUCV_DBF_TEXT(name,level,text) \ - do { \ - debug_text_event(iucv_dbf_##name,level,text); \ - } while (0) - -#define IUCV_DBF_HEX(name,level,addr,len) \ - do { \ - debug_event(iucv_dbf_##name,level,(void*)(addr),len); \ - } while (0) - -DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf); - -#define IUCV_DBF_TEXT_(name,level,text...) \ - do { \ - char* iucv_dbf_txt_buf = get_cpu_var(iucv_dbf_txt_buf); \ - sprintf(iucv_dbf_txt_buf, text); \ - debug_text_event(iucv_dbf_##name,level,iucv_dbf_txt_buf); \ - put_cpu_var(iucv_dbf_txt_buf); \ - } while (0) - -#define IUCV_DBF_SPRINTF(name,level,text...) \ - do { \ - debug_sprintf_event(iucv_dbf_trace, level, ##text ); \ - debug_sprintf_event(iucv_dbf_trace, level, text ); \ - } while (0) - -/** - * some more debug stuff - */ -#define IUCV_HEXDUMP16(importance,header,ptr) \ -PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ - "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ - *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \ - *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \ - *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \ - *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \ - *(((char*)ptr)+12),*(((char*)ptr)+13), \ - *(((char*)ptr)+14),*(((char*)ptr)+15)); \ -PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ - "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ - *(((char*)ptr)+16),*(((char*)ptr)+17), \ - *(((char*)ptr)+18),*(((char*)ptr)+19), \ - *(((char*)ptr)+20),*(((char*)ptr)+21), \ - *(((char*)ptr)+22),*(((char*)ptr)+23), \ - *(((char*)ptr)+24),*(((char*)ptr)+25), \ - *(((char*)ptr)+26),*(((char*)ptr)+27), \ - *(((char*)ptr)+28),*(((char*)ptr)+29), \ - *(((char*)ptr)+30),*(((char*)ptr)+31)); - -static inline void -iucv_hex_dump(unsigned char *buf, size_t len) -{ - size_t i; - - for (i = 0; i < len; i++) { - if (i && !(i % 16)) - printk("\n"); - printk("%02x ", *(buf + i)); - } - printk("\n"); -} -/** - * end of debug stuff - */ - -#define uchar unsigned char -#define ushort unsigned short -#define ulong unsigned long -#define iucv_handle_t void * - -/* flags1: - * All flags are defined in the field IPFLAGS1 of each function - * and can be found in CP Programming Services. - * IPLOCAL - Indicates the connect can only be satisfied on the - * local system - * IPPRTY - Indicates a priority message - * IPQUSCE - Indicates you do not want to receive messages on a - * path until an iucv_resume is issued - * IPRMDATA - Indicates that the message is in the parameter list - */ -#define IPLOCAL 0x01 -#define IPPRTY 0x20 -#define IPQUSCE 0x40 -#define IPRMDATA 0x80 - -/* flags1_out: - * All flags are defined in the output field of IPFLAGS1 for each function - * and can be found in CP Programming Services. - * IPNORPY - Specifies this is a one-way message and no reply is expected. - * IPPRTY - Indicates a priority message is permitted. Defined in flags1. - */ -#define IPNORPY 0x10 - -#define Nonpriority_MessagePendingInterruptsFlag 0x80 -#define Priority_MessagePendingInterruptsFlag 0x40 -#define Nonpriority_MessageCompletionInterruptsFlag 0x20 -#define Priority_MessageCompletionInterruptsFlag 0x10 -#define IUCVControlInterruptsFlag 0x08 -#define AllInterrupts 0xf8 -/* - * Mapping of external interrupt buffers should be used with the corresponding - * interrupt types. - * Names: iucv_ConnectionPending -> connection pending - * iucv_ConnectionComplete -> connection complete - * iucv_ConnectionSevered -> connection severed - * iucv_ConnectionQuiesced -> connection quiesced - * iucv_ConnectionResumed -> connection resumed - * iucv_MessagePending -> message pending - * iucv_MessageComplete -> message complete - */ -typedef struct { - u16 ippathid; - uchar ipflags1; - uchar iptype; - u16 ipmsglim; - u16 res1; - uchar ipvmid[8]; - uchar ipuser[16]; - u32 res3; - uchar ippollfg; - uchar res4[3]; -} iucv_ConnectionPending; - -typedef struct { - u16 ippathid; - uchar ipflags1; - uchar iptype; - u16 ipmsglim; - u16 res1; - uchar res2[8]; - uchar ipuser[16]; - u32 res3; - uchar ippollfg; - uchar res4[3]; -} iucv_ConnectionComplete; - -typedef struct { - u16 ippathid; - uchar res1; - uchar iptype; - u32 res2; - uchar res3[8]; - uchar ipuser[16]; - u32 res4; - uchar ippollfg; - uchar res5[3]; -} iucv_ConnectionSevered; - -typedef struct { - u16 ippathid; - uchar res1; - uchar iptype; - u32 res2; - uchar res3[8]; - uchar ipuser[16]; - u32 res4; - uchar ippollfg; - uchar res5[3]; -} iucv_ConnectionQuiesced; - -typedef struct { - u16 ippathid; - uchar res1; - uchar iptype; - u32 res2; - uchar res3[8]; - uchar ipuser[16]; - u32 res4; - uchar ippollfg; - uchar res5[3]; -} iucv_ConnectionResumed; - -typedef struct { - u16 ippathid; - uchar ipflags1; - uchar iptype; - u32 ipmsgid; - u32 iptrgcls; - union u2 { - u32 iprmmsg1_u32; - uchar iprmmsg1[4]; - } ln1msg1; - union u1 { - u32 ipbfln1f; - uchar iprmmsg2[4]; - } ln1msg2; - u32 res1[3]; - u32 ipbfln2f; - uchar ippollfg; - uchar res2[3]; -} iucv_MessagePending; - -typedef struct { - u16 ippathid; - uchar ipflags1; - uchar iptype; - u32 ipmsgid; - u32 ipaudit; - uchar iprmmsg[8]; - u32 ipsrccls; - u32 ipmsgtag; - u32 res; - u32 ipbfln2f; - uchar ippollfg; - uchar res2[3]; -} iucv_MessageComplete; - -/* - * iucv_interrupt_ops_t: Is a vector of functions that handle - * IUCV interrupts. - * Parameter list: - * eib - is a pointer to a 40-byte area described - * with one of the structures above. - * pgm_data - this data is strictly for the - * interrupt handler that is passed by - * the application. This may be an address - * or token. -*/ -typedef struct { - void (*ConnectionPending) (iucv_ConnectionPending * eib, - void *pgm_data); - void (*ConnectionComplete) (iucv_ConnectionComplete * eib, - void *pgm_data); - void (*ConnectionSevered) (iucv_ConnectionSevered * eib, - void *pgm_data); - void (*ConnectionQuiesced) (iucv_ConnectionQuiesced * eib, - void *pgm_data); - void (*ConnectionResumed) (iucv_ConnectionResumed * eib, - void *pgm_data); - void (*MessagePending) (iucv_MessagePending * eib, void *pgm_data); - void (*MessageComplete) (iucv_MessageComplete * eib, void *pgm_data); -} iucv_interrupt_ops_t; - -/* - *iucv_array_t : Defines buffer array. - * Inside the array may be 31- bit addresses and 31-bit lengths. -*/ -typedef struct { - u32 address; - u32 length; -} iucv_array_t __attribute__ ((aligned (8))); - -extern struct bus_type iucv_bus; -extern struct device *iucv_root; - -/* -prototypes- */ -/* - * Name: iucv_register_program - * Purpose: Registers an application with IUCV - * Input: prmname - user identification - * userid - machine identification - * pgmmask - indicates which bits in the prmname and userid combined will be - * used to determine who is given control - * ops - address of vector of interrupt handlers - * pgm_data- application data passed to interrupt handlers - * Output: NA - * Return: address of handler - * (0) - Error occurred, registration not completed. - * NOTE: Exact cause of failure will be recorded in syslog. -*/ -iucv_handle_t iucv_register_program (uchar pgmname[16], - uchar userid[8], - uchar pgmmask[24], - iucv_interrupt_ops_t * ops, - void *pgm_data); - -/* - * Name: iucv_unregister_program - * Purpose: Unregister application with IUCV - * Input: address of handler - * Output: NA - * Return: (0) - Normal return - * (-EINVAL) - Internal error, wild pointer -*/ -int iucv_unregister_program (iucv_handle_t handle); - -/* - * Name: iucv_accept - * Purpose: This function is issued after the user receives a Connection Pending external - * interrupt and now wishes to complete the IUCV communication path. - * Input: pathid - u16 , Path identification number - * msglim_reqstd - u16, The number of outstanding messages requested. - * user_data - uchar[16], Data specified by the iucv_connect function. - * flags1 - int, Contains options for this path. - * -IPPRTY - 0x20- Specifies if you want to send priority message. - * -IPRMDATA - 0x80, Specifies whether your program can handle a message - * in the parameter list. - * -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being - * established. - * handle - iucv_handle_t, Address of handler. - * pgm_data - void *, Application data passed to interrupt handlers. - * flags1_out - int * Contains information about the path - * - IPPRTY - 0x20, Indicates you may send priority messages. - * msglim - *u16, Number of outstanding messages. - * Output: return code from CP IUCV call. -*/ - -int iucv_accept (u16 pathid, - u16 msglim_reqstd, - uchar user_data[16], - int flags1, - iucv_handle_t handle, - void *pgm_data, int *flags1_out, u16 * msglim); - -/* - * Name: iucv_connect - * Purpose: This function establishes an IUCV path. Although the connect may complete - * successfully, you are not able to use the path until you receive an IUCV - * Connection Complete external interrupt. - * Input: pathid - u16 *, Path identification number - * msglim_reqstd - u16, Number of outstanding messages requested - * user_data - uchar[16], 16-byte user data - * userid - uchar[8], User identification - * system_name - uchar[8], 8-byte identifying the system name - * flags1 - int, Contains options for this path. - * -IPPRTY - 0x20, Specifies if you want to send priority message. - * -IPRMDATA - 0x80, Specifies whether your program can handle a message - * in the parameter list. - * -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being - * established. - * -IPLOCAL - 0X01, Allows an application to force the partner to be on - * the local system. If local is specified then target class cannot be - * specified. - * flags1_out - int * Contains information about the path - * - IPPRTY - 0x20, Indicates you may send priority messages. - * msglim - * u16, Number of outstanding messages - * handle - iucv_handle_t, Address of handler - * pgm_data - void *, Application data passed to interrupt handlers - * Output: return code from CP IUCV call - * rc - return code from iucv_declare_buffer - * -EINVAL - Invalid handle passed by application - * -EINVAL - Pathid address is NULL - * add_pathid_result - Return code from internal function add_pathid -*/ -int - iucv_connect (u16 * pathid, - u16 msglim_reqstd, - uchar user_data[16], - uchar userid[8], - uchar system_name[8], - int flags1, - int *flags1_out, - u16 * msglim, iucv_handle_t handle, void *pgm_data); - -/* - * Name: iucv_purge - * Purpose: This function cancels a message that you have sent. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID of the message to be purged. - * srccls - Specifies the source message class. - * Output: audit - Contains information about asynchronous error - * that may have affected the normal completion - * of this message. - * Return: Return code from CP IUCV call. -*/ -int iucv_purge (u16 pathid, u32 msgid, u32 srccls, __u32 *audit); -/* - * Name: iucv_query_maxconn - * Purpose: This function determines the maximum number of communication paths you - * may establish. - * Return: maxconn - ulong, Maximum number of connection the virtual machine may - * establish. -*/ -ulong iucv_query_maxconn (void); - -/* - * Name: iucv_query_bufsize - * Purpose: This function determines how large an external interrupt - * buffer IUCV requires to store information. - * Return: bufsize - ulong, Size of external interrupt buffer. - */ -ulong iucv_query_bufsize (void); - -/* - * Name: iucv_quiesce - * Purpose: This function temporarily suspends incoming messages on an - * IUCV path. You can later reactivate the path by invoking - * the iucv_resume function. - * Input: pathid - Path identification number - * user_data - 16-bytes of user data - * Output: NA - * Return: Return code from CP IUCV call. -*/ -int iucv_quiesce (u16 pathid, uchar user_data[16]); - -/* - * Name: iucv_receive - * Purpose: This function receives messages that are being sent to you - * over established paths. Data will be returned in buffer for length of - * buflen. - * Input: - * pathid - Path identification number. - * buffer - Address of buffer to receive. - * buflen - Length of buffer to receive. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * Output: - * flags1_out: int *, Contains information about this path. - * IPNORPY - 0x10 Specifies this is a one-way message and no reply is - * expected. - * IPPRTY - 0x20 Specifies if you want to send priority message. - * IPRMDATA - 0x80 specifies the data is contained in the parameter list - * residual_buffer - address of buffer updated by the number - * of bytes you have received. - * residual_length - - * Contains one of the following values, if the receive buffer is: - * The same length as the message, this field is zero. - * Longer than the message, this field contains the number of - * bytes remaining in the buffer. - * Shorter than the message, this field contains the residual - * count (that is, the number of bytes remaining in the - * message that does not fit into the buffer. In this - * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - buffer address is pointing to NULL -*/ -int iucv_receive (u16 pathid, - u32 msgid, - u32 trgcls, - void *buffer, - ulong buflen, - int *flags1_out, - ulong * residual_buffer, ulong * residual_length); - - /* - * Name: iucv_receive_array - * Purpose: This function receives messages that are being sent to you - * over established paths. Data will be returned in first buffer for - * length of first buffer. - * Input: pathid - Path identification number. - * msgid - specifies the message ID. - * trgcls - Specifies target class. - * buffer - Address of array of buffers. - * buflen - Total length of buffers. - * Output: - * flags1_out: int *, Contains information about this path. - * IPNORPY - 0x10 Specifies this is a one-way message and no reply is - * expected. - * IPPRTY - 0x20 Specifies if you want to send priority message. - * IPRMDATA - 0x80 specifies the data is contained in the parameter list - * residual_buffer - address points to the current list entry IUCV - * is working on. - * residual_length - - * Contains one of the following values, if the receive buffer is: - * The same length as the message, this field is zero. - * Longer than the message, this field contains the number of - * bytes remaining in the buffer. - * Shorter than the message, this field contains the residual - * count (that is, the number of bytes remaining in the - * message that does not fit into the buffer. In this - * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. - */ -int iucv_receive_array (u16 pathid, - u32 msgid, - u32 trgcls, - iucv_array_t * buffer, - ulong buflen, - int *flags1_out, - ulong * residual_buffer, ulong * residual_length); - -/* - * Name: iucv_reject - * Purpose: The reject function refuses a specified message. Between the - * time you are notified of a message and the time that you - * complete the message, the message may be rejected. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * Output: NA - * Return: Return code from CP IUCV call. -*/ -int iucv_reject (u16 pathid, u32 msgid, u32 trgcls); - -/* - * Name: iucv_reply - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * flags1 - Option for path. - * IPPRTY- 0x20, Specifies if you want to send priority message. - * buffer - Address of reply buffer. - * buflen - Length of reply buffer. - * Output: residual_buffer - Address of buffer updated by the number - * of bytes you have moved. - * residual_length - Contains one of the following values: - * If the answer buffer is the same length as the reply, this field - * contains zero. - * If the answer buffer is longer than the reply, this field contains - * the number of bytes remaining in the buffer. - * If the answer buffer is shorter than the reply, this field contains - * a residual count (that is, the number of bytes remianing in the - * reply that does not fit into the buffer. In this - * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. -*/ -int iucv_reply (u16 pathid, - u32 msgid, - u32 trgcls, - int flags1, - void *buffer, ulong buflen, ulong * residual_buffer, - ulong * residual_length); - -/* - * Name: iucv_reply_array - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * The array identifies a list of addresses and lengths of - * discontiguous buffers that contains the reply data. - * Input: pathid - Path identification number - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * flags1 - Option for path. - * IPPRTY- 0x20, Specifies if you want to send priority message. - * buffer - Address of array of reply buffers. - * buflen - Total length of reply buffers. - * Output: residual_buffer - Address of buffer which IUCV is currently working on. - * residual_length - Contains one of the following values: - * If the answer buffer is the same length as the reply, this field - * contains zero. - * If the answer buffer is longer than the reply, this field contains - * the number of bytes remaining in the buffer. - * If the answer buffer is shorter than the reply, this field contains - * a residual count (that is, the number of bytes remianing in the - * reply that does not fit into the buffer. In this - * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. -*/ -int iucv_reply_array (u16 pathid, - u32 msgid, - u32 trgcls, - int flags1, - iucv_array_t * buffer, - ulong buflen, ulong * residual_address, - ulong * residual_length); - -/* - * Name: iucv_reply_prmmsg - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * Prmmsg signifies the data is moved into the - * parameter list. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * flags1 - Option for path. - * IPPRTY- 0x20 Specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed into the parameter. - * list. - * Output: NA - * Return: Return code from CP IUCV call. -*/ -int iucv_reply_prmmsg (u16 pathid, - u32 msgid, u32 trgcls, int flags1, uchar prmmsg[8]); - -/* - * Name: iucv_resume - * Purpose: This function restores communications over a quiesced path - * Input: pathid - Path identification number. - * user_data - 16-bytes of user data. - * Output: NA - * Return: Return code from CP IUCV call. -*/ -int iucv_resume (u16 pathid, uchar user_data[16]); - -/* - * Name: iucv_send - * Purpose: This function transmits data to another application. - * Data to be transmitted is in a buffer and this is a - * one-way message and the receiver will not reply to the - * message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. - * flags1 - Option for path. - * IPPRTY- 0x20 Specifies if you want to send priority message. - * buffer - Address of send buffer. - * buflen - Length of send buffer. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. -*/ -int iucv_send (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, u32 msgtag, int flags1, void *buffer, ulong buflen); - -/* - * Name: iucv_send_array - * Purpose: This function transmits data to another application. - * The contents of buffer is the address of the array of - * addresses and lengths of discontiguous buffers that hold - * the message text. This is a one-way message and the - * receiver will not reply to the message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated witht the message. - * flags1 - Option for path. - * IPPRTY- specifies if you want to send priority message. - * buffer - Address of array of send buffers. - * buflen - Total length of send buffers. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. -*/ -int iucv_send_array (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, - u32 msgtag, - int flags1, iucv_array_t * buffer, ulong buflen); - -/* - * Name: iucv_send_prmmsg - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a one-way message and the - * receiver will not reply to the message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. - * flags1 - Option for path. - * IPPRTY- 0x20 specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed into parameter list. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. -*/ -int iucv_send_prmmsg (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, u32 msgtag, int flags1, uchar prmmsg[8]); - -/* - * Name: iucv_send2way - * Purpose: This function transmits data to another application. - * Data to be transmitted is in a buffer. The receiver - * of the send is expected to reply to the message and - * a buffer is provided into which IUCV moves the reply - * to this message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag associated with the message. - * flags1 - Option for path. - * IPPRTY- 0x20 Specifies if you want to send priority message. - * buffer - Address of send buffer. - * buflen - Length of send buffer. - * ansbuf - Address of buffer into which IUCV moves the reply of - * this message. - * anslen - Address of length of buffer. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer or ansbuf address is NULL. -*/ -int iucv_send2way (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, - u32 msgtag, - int flags1, - void *buffer, ulong buflen, void *ansbuf, ulong anslen); - -/* - * Name: iucv_send2way_array - * Purpose: This function transmits data to another application. - * The contents of buffer is the address of the array of - * addresses and lengths of discontiguous buffers that hold - * the message text. The receiver of the send is expected to - * reply to the message and a buffer is provided into which - * IUCV moves the reply to this message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. - * flags1 - Option for path. - * IPPRTY- 0x20 Specifies if you want to send priority message. - * buffer - Sddress of array of send buffers. - * buflen - Total length of send buffers. - * ansbuf - Address of array of buffer into which IUCV moves the reply - * of this message. - * anslen - Address of length reply buffers. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. -*/ -int iucv_send2way_array (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, - u32 msgtag, - int flags1, - iucv_array_t * buffer, - ulong buflen, iucv_array_t * ansbuf, ulong anslen); - -/* - * Name: iucv_send2way_prmmsg - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a two-way message and the - * receiver of the message is expected to reply. A buffer - * is provided into which IUCV moves the reply to this - * message. - * Input: pathid - Rath identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. - * flags1 - Option for path. - * IPPRTY- 0x20 Specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed in parameter list. - * ansbuf - Address of buffer into which IUCV moves the reply of - * this message. - * anslen - Address of length of buffer. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. -*/ -int iucv_send2way_prmmsg (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, - u32 msgtag, - ulong flags1, - uchar prmmsg[8], void *ansbuf, ulong anslen); - -/* - * Name: iucv_send2way_prmmsg_array - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a two-way message and the - * receiver of the message is expected to reply. A buffer - * is provided into which IUCV moves the reply to this - * message. The contents of ansbuf is the address of the - * array of addresses and lengths of discontiguous buffers - * that contain the reply. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. - * flags1 - Option for path. - * IPPRTY- 0x20 specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed into the parameter list. - * ansbuf - Address of array of buffer into which IUCV moves the reply - * of this message. - * anslen - Address of length of reply buffers. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Ansbuf address is NULL. -*/ -int iucv_send2way_prmmsg_array (u16 pathid, - u32 * msgid, - u32 trgcls, - u32 srccls, - u32 msgtag, - int flags1, - uchar prmmsg[8], - iucv_array_t * ansbuf, ulong anslen); - -/* - * Name: iucv_setmask - * Purpose: This function enables or disables the following IUCV - * external interruptions: Nonpriority and priority message - * interrupts, nonpriority and priority reply interrupts. - * Input: SetMaskFlag - options for interrupts - * 0x80 - Nonpriority_MessagePendingInterruptsFlag - * 0x40 - Priority_MessagePendingInterruptsFlag - * 0x20 - Nonpriority_MessageCompletionInterruptsFlag - * 0x10 - Priority_MessageCompletionInterruptsFlag - * 0x08 - IUCVControlInterruptsFlag - * Output: NA - * Return: Return code from CP IUCV call. -*/ -int iucv_setmask (int SetMaskFlag); - -/* - * Name: iucv_sever - * Purpose: This function terminates an IUCV path. - * Input: pathid - Path identification number. - * user_data - 16-bytes of user data. - * Output: NA - * Return: Return code from CP IUCV call. - * (-EINVAL) - Interal error, wild pointer. -*/ -int iucv_sever (u16 pathid, uchar user_data[16]); diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index 3346088f47e0..6387b483f2bf 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -1,7 +1,7 @@ /* * IUCV network driver * - * Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation * Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com) * * Sysfs integration and all bugs therein by Cornelia Huck @@ -58,13 +58,94 @@ #include <asm/io.h> #include <asm/uaccess.h> -#include "iucv.h" +#include <net/iucv/iucv.h> #include "fsm.h" MODULE_AUTHOR ("(C) 2001 IBM Corporation by Fritz Elfert (felfert@millenux.com)"); MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver"); +/** + * Debug Facility stuff + */ +#define IUCV_DBF_SETUP_NAME "iucv_setup" +#define IUCV_DBF_SETUP_LEN 32 +#define IUCV_DBF_SETUP_PAGES 2 +#define IUCV_DBF_SETUP_NR_AREAS 1 +#define IUCV_DBF_SETUP_LEVEL 3 + +#define IUCV_DBF_DATA_NAME "iucv_data" +#define IUCV_DBF_DATA_LEN 128 +#define IUCV_DBF_DATA_PAGES 2 +#define IUCV_DBF_DATA_NR_AREAS 1 +#define IUCV_DBF_DATA_LEVEL 2 + +#define IUCV_DBF_TRACE_NAME "iucv_trace" +#define IUCV_DBF_TRACE_LEN 16 +#define IUCV_DBF_TRACE_PAGES 4 +#define IUCV_DBF_TRACE_NR_AREAS 1 +#define IUCV_DBF_TRACE_LEVEL 3 + +#define IUCV_DBF_TEXT(name,level,text) \ + do { \ + debug_text_event(iucv_dbf_##name,level,text); \ + } while (0) + +#define IUCV_DBF_HEX(name,level,addr,len) \ + do { \ + debug_event(iucv_dbf_##name,level,(void*)(addr),len); \ + } while (0) + +DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf); + +#define IUCV_DBF_TEXT_(name,level,text...) \ + do { \ + char* iucv_dbf_txt_buf = get_cpu_var(iucv_dbf_txt_buf); \ + sprintf(iucv_dbf_txt_buf, text); \ + debug_text_event(iucv_dbf_##name,level,iucv_dbf_txt_buf); \ + put_cpu_var(iucv_dbf_txt_buf); \ + } while (0) + +#define IUCV_DBF_SPRINTF(name,level,text...) \ + do { \ + debug_sprintf_event(iucv_dbf_trace, level, ##text ); \ + debug_sprintf_event(iucv_dbf_trace, level, text ); \ + } while (0) + +/** + * some more debug stuff + */ +#define IUCV_HEXDUMP16(importance,header,ptr) \ +PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ + "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ + *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \ + *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \ + *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \ + *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \ + *(((char*)ptr)+12),*(((char*)ptr)+13), \ + *(((char*)ptr)+14),*(((char*)ptr)+15)); \ +PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \ + "%02x %02x %02x %02x %02x %02x %02x %02x\n", \ + *(((char*)ptr)+16),*(((char*)ptr)+17), \ + *(((char*)ptr)+18),*(((char*)ptr)+19), \ + *(((char*)ptr)+20),*(((char*)ptr)+21), \ + *(((char*)ptr)+22),*(((char*)ptr)+23), \ + *(((char*)ptr)+24),*(((char*)ptr)+25), \ + *(((char*)ptr)+26),*(((char*)ptr)+27), \ + *(((char*)ptr)+28),*(((char*)ptr)+29), \ + *(((char*)ptr)+30),*(((char*)ptr)+31)); + +static inline void iucv_hex_dump(unsigned char *buf, size_t len) +{ + size_t i; + + for (i = 0; i < len; i++) { + if (i && !(i % 16)) + printk("\n"); + printk("%02x ", *(buf + i)); + } + printk("\n"); +} #define PRINTK_HEADER " iucv: " /* for debugging */ @@ -73,6 +154,25 @@ static struct device_driver netiucv_driver = { .bus = &iucv_bus, }; +static int netiucv_callback_connreq(struct iucv_path *, + u8 ipvmid[8], u8 ipuser[16]); +static void netiucv_callback_connack(struct iucv_path *, u8 ipuser[16]); +static void netiucv_callback_connrej(struct iucv_path *, u8 ipuser[16]); +static void netiucv_callback_connsusp(struct iucv_path *, u8 ipuser[16]); +static void netiucv_callback_connres(struct iucv_path *, u8 ipuser[16]); +static void netiucv_callback_rx(struct iucv_path *, struct iucv_message *); +static void netiucv_callback_txdone(struct iucv_path *, struct iucv_message *); + +static struct iucv_handler netiucv_handler = { + .path_pending = netiucv_callback_connreq, + .path_complete = netiucv_callback_connack, + .path_severed = netiucv_callback_connrej, + .path_quiesced = netiucv_callback_connsusp, + .path_resumed = netiucv_callback_connres, + .message_pending = netiucv_callback_rx, + .message_complete = netiucv_callback_txdone +}; + /** * Per connection profiling data */ @@ -92,9 +192,8 @@ struct connection_profile { * Representation of one iucv connection */ struct iucv_connection { - struct iucv_connection *next; - iucv_handle_t handle; - __u16 pathid; + struct list_head list; + struct iucv_path *path; struct sk_buff *rx_buff; struct sk_buff *tx_buff; struct sk_buff_head collect_queue; @@ -112,12 +211,9 @@ struct iucv_connection { /** * Linked list of all connection structs. */ -struct iucv_connection_struct { - struct iucv_connection *iucv_connections; - rwlock_t iucv_rwlock; -}; - -static struct iucv_connection_struct iucv_conns; +static struct list_head iucv_connection_list = + LIST_HEAD_INIT(iucv_connection_list); +static rwlock_t iucv_connection_rwlock = RW_LOCK_UNLOCKED; /** * Representation of event-data for the @@ -142,11 +238,11 @@ struct netiucv_priv { /** * Link level header for a packet. */ -typedef struct ll_header_t { - __u16 next; -} ll_header; +struct ll_header { + u16 next; +}; -#define NETIUCV_HDRLEN (sizeof(ll_header)) +#define NETIUCV_HDRLEN (sizeof(struct ll_header)) #define NETIUCV_BUFSIZE_MAX 32768 #define NETIUCV_BUFSIZE_DEFAULT NETIUCV_BUFSIZE_MAX #define NETIUCV_MTU_MAX (NETIUCV_BUFSIZE_MAX - NETIUCV_HDRLEN) @@ -158,36 +254,26 @@ typedef struct ll_header_t { * Compatibility macros for busy handling * of network devices. */ -static __inline__ void netiucv_clear_busy(struct net_device *dev) +static inline void netiucv_clear_busy(struct net_device *dev) { - clear_bit(0, &(((struct netiucv_priv *)dev->priv)->tbusy)); + struct netiucv_priv *priv = netdev_priv(dev); + clear_bit(0, &priv->tbusy); netif_wake_queue(dev); } -static __inline__ int netiucv_test_and_set_busy(struct net_device *dev) +static inline int netiucv_test_and_set_busy(struct net_device *dev) { + struct netiucv_priv *priv = netdev_priv(dev); netif_stop_queue(dev); - return test_and_set_bit(0, &((struct netiucv_priv *)dev->priv)->tbusy); + return test_and_set_bit(0, &priv->tbusy); } -static __u8 iucv_host[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; -static __u8 iucvMagic[16] = { +static u8 iucvMagic[16] = { 0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xF0, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40 }; /** - * This mask means the 16-byte IUCV "magic" and the origin userid must - * match exactly as specified in order to give connection_pending() - * control. - */ -static __u8 netiucv_mask[] = { - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff -}; - -/** * Convert an iucv userId to its printable * form (strip whitespace at end). * @@ -195,8 +281,7 @@ static __u8 netiucv_mask[] = { * * @returns The printable string (static data!!) */ -static __inline__ char * -netiucv_printname(char *name) +static inline char *netiucv_printname(char *name) { static char tmp[9]; char *p = tmp; @@ -379,8 +464,7 @@ static debug_info_t *iucv_dbf_trace = NULL; DEFINE_PER_CPU(char[256], iucv_dbf_txt_buf); -static void -iucv_unregister_dbf_views(void) +static void iucv_unregister_dbf_views(void) { if (iucv_dbf_setup) debug_unregister(iucv_dbf_setup); @@ -389,8 +473,7 @@ iucv_unregister_dbf_views(void) if (iucv_dbf_trace) debug_unregister(iucv_dbf_trace); } -static int -iucv_register_dbf_views(void) +static int iucv_register_dbf_views(void) { iucv_dbf_setup = debug_register(IUCV_DBF_SETUP_NAME, IUCV_DBF_SETUP_PAGES, @@ -422,125 +505,111 @@ iucv_register_dbf_views(void) return 0; } -/** +/* * Callback-wrappers, called from lowlevel iucv layer. - *****************************************************************************/ + */ -static void -netiucv_callback_rx(iucv_MessagePending *eib, void *pgm_data) +static void netiucv_callback_rx(struct iucv_path *path, + struct iucv_message *msg) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; + struct iucv_connection *conn = path->private; struct iucv_event ev; ev.conn = conn; - ev.data = (void *)eib; - + ev.data = msg; fsm_event(conn->fsm, CONN_EVENT_RX, &ev); } -static void -netiucv_callback_txdone(iucv_MessageComplete *eib, void *pgm_data) +static void netiucv_callback_txdone(struct iucv_path *path, + struct iucv_message *msg) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; + struct iucv_connection *conn = path->private; struct iucv_event ev; ev.conn = conn; - ev.data = (void *)eib; + ev.data = msg; fsm_event(conn->fsm, CONN_EVENT_TXDONE, &ev); } -static void -netiucv_callback_connack(iucv_ConnectionComplete *eib, void *pgm_data) +static void netiucv_callback_connack(struct iucv_path *path, u8 ipuser[16]) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; - struct iucv_event ev; + struct iucv_connection *conn = path->private; - ev.conn = conn; - ev.data = (void *)eib; - fsm_event(conn->fsm, CONN_EVENT_CONN_ACK, &ev); + fsm_event(conn->fsm, CONN_EVENT_CONN_ACK, conn); } -static void -netiucv_callback_connreq(iucv_ConnectionPending *eib, void *pgm_data) +static int netiucv_callback_connreq(struct iucv_path *path, + u8 ipvmid[8], u8 ipuser[16]) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; + struct iucv_connection *conn = path->private; struct iucv_event ev; + int rc; - ev.conn = conn; - ev.data = (void *)eib; - fsm_event(conn->fsm, CONN_EVENT_CONN_REQ, &ev); + if (memcmp(iucvMagic, ipuser, sizeof(ipuser))) + /* ipuser must match iucvMagic. */ + return -EINVAL; + rc = -EINVAL; + read_lock_bh(&iucv_connection_rwlock); + list_for_each_entry(conn, &iucv_connection_list, list) { + if (strncmp(ipvmid, conn->userid, 8)) + continue; + /* Found a matching connection for this path. */ + conn->path = path; + ev.conn = conn; + ev.data = path; + fsm_event(conn->fsm, CONN_EVENT_CONN_REQ, &ev); + rc = 0; + } + read_unlock_bh(&iucv_connection_rwlock); + return rc; } -static void -netiucv_callback_connrej(iucv_ConnectionSevered *eib, void *pgm_data) +static void netiucv_callback_connrej(struct iucv_path *path, u8 ipuser[16]) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; - struct iucv_event ev; + struct iucv_connection *conn = path->private; - ev.conn = conn; - ev.data = (void *)eib; - fsm_event(conn->fsm, CONN_EVENT_CONN_REJ, &ev); + fsm_event(conn->fsm, CONN_EVENT_CONN_REJ, conn); } -static void -netiucv_callback_connsusp(iucv_ConnectionQuiesced *eib, void *pgm_data) +static void netiucv_callback_connsusp(struct iucv_path *path, u8 ipuser[16]) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; - struct iucv_event ev; + struct iucv_connection *conn = path->private; - ev.conn = conn; - ev.data = (void *)eib; - fsm_event(conn->fsm, CONN_EVENT_CONN_SUS, &ev); + fsm_event(conn->fsm, CONN_EVENT_CONN_SUS, conn); } -static void -netiucv_callback_connres(iucv_ConnectionResumed *eib, void *pgm_data) +static void netiucv_callback_connres(struct iucv_path *path, u8 ipuser[16]) { - struct iucv_connection *conn = (struct iucv_connection *)pgm_data; - struct iucv_event ev; + struct iucv_connection *conn = path->private; - ev.conn = conn; - ev.data = (void *)eib; - fsm_event(conn->fsm, CONN_EVENT_CONN_RES, &ev); -} - -static iucv_interrupt_ops_t netiucv_ops = { - .ConnectionPending = netiucv_callback_connreq, - .ConnectionComplete = netiucv_callback_connack, - .ConnectionSevered = netiucv_callback_connrej, - .ConnectionQuiesced = netiucv_callback_connsusp, - .ConnectionResumed = netiucv_callback_connres, - .MessagePending = netiucv_callback_rx, - .MessageComplete = netiucv_callback_txdone -}; + fsm_event(conn->fsm, CONN_EVENT_CONN_RES, conn); +} /** * Dummy NOP action for all statemachines */ -static void -fsm_action_nop(fsm_instance *fi, int event, void *arg) +static void fsm_action_nop(fsm_instance *fi, int event, void *arg) { } -/** +/* * Actions of the connection statemachine - *****************************************************************************/ + */ /** - * Helper function for conn_action_rx() - * Unpack a just received skb and hand it over to - * upper layers. + * netiucv_unpack_skb + * @conn: The connection where this skb has been received. + * @pskb: The received skb. * - * @param conn The connection where this skb has been received. - * @param pskb The received skb. + * Unpack a just received skb and hand it over to upper layers. + * Helper function for conn_action_rx. */ -//static __inline__ void -static void -netiucv_unpack_skb(struct iucv_connection *conn, struct sk_buff *pskb) +static void netiucv_unpack_skb(struct iucv_connection *conn, + struct sk_buff *pskb) { struct net_device *dev = conn->netdev; - struct netiucv_priv *privptr = dev->priv; - __u16 offset = 0; + struct netiucv_priv *privptr = netdev_priv(dev); + u16 offset = 0; skb_put(pskb, NETIUCV_HDRLEN); pskb->dev = dev; @@ -549,7 +618,7 @@ netiucv_unpack_skb(struct iucv_connection *conn, struct sk_buff *pskb) while (1) { struct sk_buff *skb; - ll_header *header = (ll_header *)pskb->data; + struct ll_header *header = (struct ll_header *) pskb->data; if (!header->next) break; @@ -595,40 +664,37 @@ netiucv_unpack_skb(struct iucv_connection *conn, struct sk_buff *pskb) } } -static void -conn_action_rx(fsm_instance *fi, int event, void *arg) +static void conn_action_rx(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; + struct iucv_event *ev = arg; struct iucv_connection *conn = ev->conn; - iucv_MessagePending *eib = (iucv_MessagePending *)ev->data; - struct netiucv_priv *privptr =(struct netiucv_priv *)conn->netdev->priv; - - __u32 msglen = eib->ln1msg2.ipbfln1f; + struct iucv_message *msg = ev->data; + struct netiucv_priv *privptr = netdev_priv(conn->netdev); int rc; IUCV_DBF_TEXT(trace, 4, __FUNCTION__); if (!conn->netdev) { - /* FRITZ: How to tell iucv LL to drop the msg? */ + iucv_message_reject(conn->path, msg); PRINT_WARN("Received data for unlinked connection\n"); IUCV_DBF_TEXT(data, 2, - "Received data for unlinked connection\n"); + "Received data for unlinked connection\n"); return; } - if (msglen > conn->max_buffsize) { - /* FRITZ: How to tell iucv LL to drop the msg? */ + if (msg->length > conn->max_buffsize) { + iucv_message_reject(conn->path, msg); privptr->stats.rx_dropped++; PRINT_WARN("msglen %d > max_buffsize %d\n", - msglen, conn->max_buffsize); + msg->length, conn->max_buffsize); IUCV_DBF_TEXT_(data, 2, "msglen %d > max_buffsize %d\n", - msglen, conn->max_buffsize); + msg->length, conn->max_buffsize); return; } conn->rx_buff->data = conn->rx_buff->tail = conn->rx_buff->head; conn->rx_buff->len = 0; - rc = iucv_receive(conn->pathid, eib->ipmsgid, eib->iptrgcls, - conn->rx_buff->data, msglen, NULL, NULL, NULL); - if (rc || msglen < 5) { + rc = iucv_message_receive(conn->path, msg, 0, conn->rx_buff->data, + msg->length, NULL); + if (rc || msg->length < 5) { privptr->stats.rx_errors++; PRINT_WARN("iucv_receive returned %08x\n", rc); IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_receive\n", rc); @@ -637,26 +703,26 @@ conn_action_rx(fsm_instance *fi, int event, void *arg) netiucv_unpack_skb(conn, conn->rx_buff); } -static void -conn_action_txdone(fsm_instance *fi, int event, void *arg) +static void conn_action_txdone(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; + struct iucv_event *ev = arg; struct iucv_connection *conn = ev->conn; - iucv_MessageComplete *eib = (iucv_MessageComplete *)ev->data; + struct iucv_message *msg = ev->data; + struct iucv_message txmsg; struct netiucv_priv *privptr = NULL; - /* Shut up, gcc! skb is always below 2G. */ - __u32 single_flag = eib->ipmsgtag; - __u32 txbytes = 0; - __u32 txpackets = 0; - __u32 stat_maxcq = 0; + u32 single_flag = msg->tag; + u32 txbytes = 0; + u32 txpackets = 0; + u32 stat_maxcq = 0; struct sk_buff *skb; unsigned long saveflags; - ll_header header; + struct ll_header header; + int rc; IUCV_DBF_TEXT(trace, 4, __FUNCTION__); - if (conn && conn->netdev && conn->netdev->priv) - privptr = (struct netiucv_priv *)conn->netdev->priv; + if (conn && conn->netdev) + privptr = netdev_priv(conn->netdev); conn->prof.tx_pending--; if (single_flag) { if ((skb = skb_dequeue(&conn->commit_queue))) { @@ -688,56 +754,55 @@ conn_action_txdone(fsm_instance *fi, int event, void *arg) conn->prof.maxmulti = conn->collect_len; conn->collect_len = 0; spin_unlock_irqrestore(&conn->collect_lock, saveflags); - if (conn->tx_buff->len) { - int rc; - - header.next = 0; - memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header, - NETIUCV_HDRLEN); + if (conn->tx_buff->len == 0) { + fsm_newstate(fi, CONN_STATE_IDLE); + return; + } - conn->prof.send_stamp = xtime; - rc = iucv_send(conn->pathid, NULL, 0, 0, 0, 0, + header.next = 0; + memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header, NETIUCV_HDRLEN); + conn->prof.send_stamp = xtime; + txmsg.class = 0; + txmsg.tag = 0; + rc = iucv_message_send(conn->path, &txmsg, 0, 0, conn->tx_buff->data, conn->tx_buff->len); - conn->prof.doios_multi++; - conn->prof.txlen += conn->tx_buff->len; - conn->prof.tx_pending++; - if (conn->prof.tx_pending > conn->prof.tx_max_pending) - conn->prof.tx_max_pending = conn->prof.tx_pending; - if (rc) { - conn->prof.tx_pending--; - fsm_newstate(fi, CONN_STATE_IDLE); - if (privptr) - privptr->stats.tx_errors += txpackets; - PRINT_WARN("iucv_send returned %08x\n", rc); - IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_send\n", rc); - } else { - if (privptr) { - privptr->stats.tx_packets += txpackets; - privptr->stats.tx_bytes += txbytes; - } - if (stat_maxcq > conn->prof.maxcqueue) - conn->prof.maxcqueue = stat_maxcq; - } - } else + conn->prof.doios_multi++; + conn->prof.txlen += conn->tx_buff->len; + conn->prof.tx_pending++; + if (conn->prof.tx_pending > conn->prof.tx_max_pending) + conn->prof.tx_max_pending = conn->prof.tx_pending; + if (rc) { + conn->prof.tx_pending--; fsm_newstate(fi, CONN_STATE_IDLE); + if (privptr) + privptr->stats.tx_errors += txpackets; + PRINT_WARN("iucv_send returned %08x\n", rc); + IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_send\n", rc); + } else { + if (privptr) { + privptr->stats.tx_packets += txpackets; + privptr->stats.tx_bytes += txbytes; + } + if (stat_maxcq > conn->prof.maxcqueue) + conn->prof.maxcqueue = stat_maxcq; + } } -static void -conn_action_connaccept(fsm_instance *fi, int event, void *arg) +static void conn_action_connaccept(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; + struct iucv_event *ev = arg; struct iucv_connection *conn = ev->conn; - iucv_ConnectionPending *eib = (iucv_ConnectionPending *)ev->data; + struct iucv_path *path = ev->data; struct net_device *netdev = conn->netdev; - struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv; + struct netiucv_priv *privptr = netdev_priv(netdev); int rc; - __u16 msglimit; - __u8 udata[16]; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - rc = iucv_accept(eib->ippathid, NETIUCV_QUEUELEN_DEFAULT, udata, 0, - conn->handle, conn, NULL, &msglimit); + conn->path = path; + path->msglim = NETIUCV_QUEUELEN_DEFAULT; + path->flags = 0; + rc = iucv_path_accept(path, &netiucv_handler, NULL, conn); if (rc) { PRINT_WARN("%s: IUCV accept failed with error %d\n", netdev->name, rc); @@ -745,183 +810,126 @@ conn_action_connaccept(fsm_instance *fi, int event, void *arg) return; } fsm_newstate(fi, CONN_STATE_IDLE); - conn->pathid = eib->ippathid; - netdev->tx_queue_len = msglimit; + netdev->tx_queue_len = conn->path->msglim; fsm_event(privptr->fsm, DEV_EVENT_CONUP, netdev); } -static void -conn_action_connreject(fsm_instance *fi, int event, void *arg) +static void conn_action_connreject(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; - struct iucv_connection *conn = ev->conn; - struct net_device *netdev = conn->netdev; - iucv_ConnectionPending *eib = (iucv_ConnectionPending *)ev->data; - __u8 udata[16]; + struct iucv_event *ev = arg; + struct iucv_path *path = ev->data; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - - iucv_sever(eib->ippathid, udata); - if (eib->ippathid != conn->pathid) { - PRINT_INFO("%s: IR Connection Pending; " - "pathid %d does not match original pathid %d\n", - netdev->name, eib->ippathid, conn->pathid); - IUCV_DBF_TEXT_(data, 2, - "connreject: IR pathid %d, conn. pathid %d\n", - eib->ippathid, conn->pathid); - iucv_sever(conn->pathid, udata); - } + iucv_path_sever(path, NULL); } -static void -conn_action_connack(fsm_instance *fi, int event, void *arg) +static void conn_action_connack(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; - struct iucv_connection *conn = ev->conn; - iucv_ConnectionComplete *eib = (iucv_ConnectionComplete *)ev->data; + struct iucv_connection *conn = arg; struct net_device *netdev = conn->netdev; - struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv; + struct netiucv_priv *privptr = netdev_priv(netdev); IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - fsm_deltimer(&conn->timer); fsm_newstate(fi, CONN_STATE_IDLE); - if (eib->ippathid != conn->pathid) { - PRINT_INFO("%s: IR Connection Complete; " - "pathid %d does not match original pathid %d\n", - netdev->name, eib->ippathid, conn->pathid); - IUCV_DBF_TEXT_(data, 2, - "connack: IR pathid %d, conn. pathid %d\n", - eib->ippathid, conn->pathid); - conn->pathid = eib->ippathid; - } - netdev->tx_queue_len = eib->ipmsglim; + netdev->tx_queue_len = conn->path->msglim; fsm_event(privptr->fsm, DEV_EVENT_CONUP, netdev); } -static void -conn_action_conntimsev(fsm_instance *fi, int event, void *arg) +static void conn_action_conntimsev(fsm_instance *fi, int event, void *arg) { - struct iucv_connection *conn = (struct iucv_connection *)arg; - __u8 udata[16]; + struct iucv_connection *conn = arg; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - fsm_deltimer(&conn->timer); - iucv_sever(conn->pathid, udata); + iucv_path_sever(conn->path, NULL); fsm_newstate(fi, CONN_STATE_STARTWAIT); } -static void -conn_action_connsever(fsm_instance *fi, int event, void *arg) +static void conn_action_connsever(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; - struct iucv_connection *conn = ev->conn; + struct iucv_connection *conn = arg; struct net_device *netdev = conn->netdev; - struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv; - __u8 udata[16]; + struct netiucv_priv *privptr = netdev_priv(netdev); IUCV_DBF_TEXT(trace, 3, __FUNCTION__); fsm_deltimer(&conn->timer); - iucv_sever(conn->pathid, udata); + iucv_path_sever(conn->path, NULL); PRINT_INFO("%s: Remote dropped connection\n", netdev->name); IUCV_DBF_TEXT(data, 2, - "conn_action_connsever: Remote dropped connection\n"); + "conn_action_connsever: Remote dropped connection\n"); fsm_newstate(fi, CONN_STATE_STARTWAIT); fsm_event(privptr->fsm, DEV_EVENT_CONDOWN, netdev); } -static void -conn_action_start(fsm_instance *fi, int event, void *arg) +static void conn_action_start(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; - struct iucv_connection *conn = ev->conn; - __u16 msglimit; + struct iucv_connection *conn = arg; int rc; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - if (!conn->handle) { - IUCV_DBF_TEXT(trace, 5, "calling iucv_register_program\n"); - conn->handle = - iucv_register_program(iucvMagic, conn->userid, - netiucv_mask, - &netiucv_ops, conn); - fsm_newstate(fi, CONN_STATE_STARTWAIT); - if (!conn->handle) { - fsm_newstate(fi, CONN_STATE_REGERR); - conn->handle = NULL; - IUCV_DBF_TEXT(setup, 2, - "NULL from iucv_register_program\n"); - return; - } - - PRINT_DEBUG("%s('%s'): registered successfully\n", - conn->netdev->name, conn->userid); - } - + fsm_newstate(fi, CONN_STATE_STARTWAIT); PRINT_DEBUG("%s('%s'): connecting ...\n", - conn->netdev->name, conn->userid); + conn->netdev->name, conn->userid); - /* We must set the state before calling iucv_connect because the callback - * handler could be called at any point after the connection request is - * sent */ + /* + * We must set the state before calling iucv_connect because the + * callback handler could be called at any point after the connection + * request is sent + */ fsm_newstate(fi, CONN_STATE_SETUPWAIT); - rc = iucv_connect(&(conn->pathid), NETIUCV_QUEUELEN_DEFAULT, iucvMagic, - conn->userid, iucv_host, 0, NULL, &msglimit, - conn->handle, conn); + conn->path = iucv_path_alloc(NETIUCV_QUEUELEN_DEFAULT, 0, GFP_KERNEL); + rc = iucv_path_connect(conn->path, &netiucv_handler, conn->userid, + NULL, iucvMagic, conn); switch (rc) { - case 0: - conn->netdev->tx_queue_len = msglimit; - fsm_addtimer(&conn->timer, NETIUCV_TIMEOUT_5SEC, - CONN_EVENT_TIMER, conn); - return; - case 11: - PRINT_INFO("%s: User %s is currently not available.\n", - conn->netdev->name, - netiucv_printname(conn->userid)); - fsm_newstate(fi, CONN_STATE_STARTWAIT); - return; - case 12: - PRINT_INFO("%s: User %s is currently not ready.\n", - conn->netdev->name, - netiucv_printname(conn->userid)); - fsm_newstate(fi, CONN_STATE_STARTWAIT); - return; - case 13: - PRINT_WARN("%s: Too many IUCV connections.\n", - conn->netdev->name); - fsm_newstate(fi, CONN_STATE_CONNERR); - break; - case 14: - PRINT_WARN( - "%s: User %s has too many IUCV connections.\n", - conn->netdev->name, - netiucv_printname(conn->userid)); - fsm_newstate(fi, CONN_STATE_CONNERR); - break; - case 15: - PRINT_WARN( - "%s: No IUCV authorization in CP directory.\n", - conn->netdev->name); - fsm_newstate(fi, CONN_STATE_CONNERR); - break; - default: - PRINT_WARN("%s: iucv_connect returned error %d\n", - conn->netdev->name, rc); - fsm_newstate(fi, CONN_STATE_CONNERR); - break; + case 0: + conn->netdev->tx_queue_len = conn->path->msglim; + fsm_addtimer(&conn->timer, NETIUCV_TIMEOUT_5SEC, + CONN_EVENT_TIMER, conn); + return; + case 11: + PRINT_INFO("%s: User %s is currently not available.\n", + conn->netdev->name, + netiucv_printname(conn->userid)); + fsm_newstate(fi, CONN_STATE_STARTWAIT); + break; + case 12: + PRINT_INFO("%s: User %s is currently not ready.\n", + conn->netdev->name, + netiucv_printname(conn->userid)); + fsm_newstate(fi, CONN_STATE_STARTWAIT); + break; + case 13: + PRINT_WARN("%s: Too many IUCV connections.\n", + conn->netdev->name); + fsm_newstate(fi, CONN_STATE_CONNERR); + break; + case 14: + PRINT_WARN("%s: User %s has too many IUCV connections.\n", + conn->netdev->name, + netiucv_printname(conn->userid)); + fsm_newstate(fi, CONN_STATE_CONNERR); + break; + case 15: + PRINT_WARN("%s: No IUCV authorization in CP directory.\n", + conn->netdev->name); + fsm_newstate(fi, CONN_STATE_CONNERR); + break; + default: + PRINT_WARN("%s: iucv_connect returned error %d\n", + conn->netdev->name, rc); + fsm_newstate(fi, CONN_STATE_CONNERR); + break; } IUCV_DBF_TEXT_(setup, 5, "iucv_connect rc is %d\n", rc); - IUCV_DBF_TEXT(trace, 5, "calling iucv_unregister_program\n"); - iucv_unregister_program(conn->handle); - conn->handle = NULL; + kfree(conn->path); + conn->path = NULL; } -static void -netiucv_purge_skb_queue(struct sk_buff_head *q) +static void netiucv_purge_skb_queue(struct sk_buff_head *q) { struct sk_buff *skb; @@ -931,36 +939,34 @@ netiucv_purge_skb_queue(struct sk_buff_head *q) } } -static void -conn_action_stop(fsm_instance *fi, int event, void *arg) +static void conn_action_stop(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; + struct iucv_event *ev = arg; struct iucv_connection *conn = ev->conn; struct net_device *netdev = conn->netdev; - struct netiucv_priv *privptr = (struct netiucv_priv *)netdev->priv; + struct netiucv_priv *privptr = netdev_priv(netdev); IUCV_DBF_TEXT(trace, 3, __FUNCTION__); fsm_deltimer(&conn->timer); fsm_newstate(fi, CONN_STATE_STOPPED); netiucv_purge_skb_queue(&conn->collect_queue); - if (conn->handle) - IUCV_DBF_TEXT(trace, 5, "calling iucv_unregister_program\n"); - iucv_unregister_program(conn->handle); - conn->handle = NULL; + if (conn->path) { + IUCV_DBF_TEXT(trace, 5, "calling iucv_path_sever\n"); + iucv_path_sever(conn->path, iucvMagic); + kfree(conn->path); + conn->path = NULL; + } netiucv_purge_skb_queue(&conn->commit_queue); fsm_event(privptr->fsm, DEV_EVENT_CONDOWN, netdev); } -static void -conn_action_inval(fsm_instance *fi, int event, void *arg) +static void conn_action_inval(fsm_instance *fi, int event, void *arg) { - struct iucv_event *ev = (struct iucv_event *)arg; - struct iucv_connection *conn = ev->conn; + struct iucv_connection *conn = arg; struct net_device *netdev = conn->netdev; - PRINT_WARN("%s: Cannot connect without username\n", - netdev->name); + PRINT_WARN("%s: Cannot connect without username\n", netdev->name); IUCV_DBF_TEXT(data, 2, "conn_action_inval called\n"); } @@ -999,29 +1005,27 @@ static const fsm_node conn_fsm[] = { static const int CONN_FSM_LEN = sizeof(conn_fsm) / sizeof(fsm_node); -/** +/* * Actions for interface - statemachine. - *****************************************************************************/ + */ /** - * Startup connection by sending CONN_EVENT_START to it. + * dev_action_start + * @fi: An instance of an interface statemachine. + * @event: The event, just happened. + * @arg: Generic pointer, casted from struct net_device * upon call. * - * @param fi An instance of an interface statemachine. - * @param event The event, just happened. - * @param arg Generic pointer, casted from struct net_device * upon call. + * Startup connection by sending CONN_EVENT_START to it. */ -static void -dev_action_start(fsm_instance *fi, int event, void *arg) +static void dev_action_start(fsm_instance *fi, int event, void *arg) { - struct net_device *dev = (struct net_device *)arg; - struct netiucv_priv *privptr = dev->priv; - struct iucv_event ev; + struct net_device *dev = arg; + struct netiucv_priv *privptr = netdev_priv(dev); IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - ev.conn = privptr->conn; fsm_newstate(fi, DEV_STATE_STARTWAIT); - fsm_event(privptr->conn->fsm, CONN_EVENT_START, &ev); + fsm_event(privptr->conn->fsm, CONN_EVENT_START, privptr->conn); } /** @@ -1034,8 +1038,8 @@ dev_action_start(fsm_instance *fi, int event, void *arg) static void dev_action_stop(fsm_instance *fi, int event, void *arg) { - struct net_device *dev = (struct net_device *)arg; - struct netiucv_priv *privptr = dev->priv; + struct net_device *dev = arg; + struct netiucv_priv *privptr = netdev_priv(dev); struct iucv_event ev; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); @@ -1057,8 +1061,8 @@ dev_action_stop(fsm_instance *fi, int event, void *arg) static void dev_action_connup(fsm_instance *fi, int event, void *arg) { - struct net_device *dev = (struct net_device *)arg; - struct netiucv_priv *privptr = dev->priv; + struct net_device *dev = arg; + struct netiucv_priv *privptr = netdev_priv(dev); IUCV_DBF_TEXT(trace, 3, __FUNCTION__); @@ -1131,11 +1135,13 @@ static const int DEV_FSM_LEN = sizeof(dev_fsm) / sizeof(fsm_node); * * @return 0 on success, -ERRNO on failure. (Never fails.) */ -static int -netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { +static int netiucv_transmit_skb(struct iucv_connection *conn, + struct sk_buff *skb) +{ + struct iucv_message msg; unsigned long saveflags; - ll_header header; - int rc = 0; + struct ll_header header; + int rc; if (fsm_getstate(conn->fsm) != CONN_STATE_IDLE) { int l = skb->len + NETIUCV_HDRLEN; @@ -1145,11 +1151,12 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { (conn->max_buffsize - NETIUCV_HDRLEN)) { rc = -EBUSY; IUCV_DBF_TEXT(data, 2, - "EBUSY from netiucv_transmit_skb\n"); + "EBUSY from netiucv_transmit_skb\n"); } else { atomic_inc(&skb->users); skb_queue_tail(&conn->collect_queue, skb); conn->collect_len += l; + rc = 0; } spin_unlock_irqrestore(&conn->collect_lock, saveflags); } else { @@ -1188,9 +1195,10 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { fsm_newstate(conn->fsm, CONN_STATE_TX); conn->prof.send_stamp = xtime; - rc = iucv_send(conn->pathid, NULL, 0, 0, 1 /* single_flag */, - 0, nskb->data, nskb->len); - /* Shut up, gcc! nskb is always below 2G. */ + msg.tag = 1; + msg.class = 0; + rc = iucv_message_send(conn->path, &msg, 0, 0, + nskb->data, nskb->len); conn->prof.doios_single++; conn->prof.txlen += skb->len; conn->prof.tx_pending++; @@ -1200,7 +1208,7 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { struct netiucv_priv *privptr; fsm_newstate(conn->fsm, CONN_STATE_IDLE); conn->prof.tx_pending--; - privptr = (struct netiucv_priv *)conn->netdev->priv; + privptr = netdev_priv(conn->netdev); if (privptr) privptr->stats.tx_errors++; if (copied) @@ -1226,9 +1234,9 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { return rc; } -/** +/* * Interface API for upper network layers - *****************************************************************************/ + */ /** * Open an interface. @@ -1238,9 +1246,11 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { * * @return 0 on success, -ERRNO on failure. (Never fails.) */ -static int -netiucv_open(struct net_device *dev) { - fsm_event(((struct netiucv_priv *)dev->priv)->fsm, DEV_EVENT_START,dev); +static int netiucv_open(struct net_device *dev) +{ + struct netiucv_priv *priv = netdev_priv(dev); + + fsm_event(priv->fsm, DEV_EVENT_START, dev); return 0; } @@ -1252,9 +1262,11 @@ netiucv_open(struct net_device *dev) { * * @return 0 on success, -ERRNO on failure. (Never fails.) */ -static int -netiucv_close(struct net_device *dev) { - fsm_event(((struct netiucv_priv *)dev->priv)->fsm, DEV_EVENT_STOP, dev); +static int netiucv_close(struct net_device *dev) +{ + struct netiucv_priv *priv = netdev_priv(dev); + + fsm_event(priv->fsm, DEV_EVENT_STOP, dev); return 0; } @@ -1271,8 +1283,8 @@ netiucv_close(struct net_device *dev) { */ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev) { - int rc = 0; - struct netiucv_priv *privptr = dev->priv; + struct netiucv_priv *privptr = netdev_priv(dev); + int rc; IUCV_DBF_TEXT(trace, 4, __FUNCTION__); /** @@ -1312,40 +1324,41 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev) return -EBUSY; } dev->trans_start = jiffies; - if (netiucv_transmit_skb(privptr->conn, skb)) - rc = 1; + rc = netiucv_transmit_skb(privptr->conn, skb) != 0; netiucv_clear_busy(dev); return rc; } /** - * Returns interface statistics of a device. + * netiucv_stats + * @dev: Pointer to interface struct. * - * @param dev Pointer to interface struct. + * Returns interface statistics of a device. * - * @return Pointer to stats struct of this interface. + * Returns pointer to stats struct of this interface. */ -static struct net_device_stats * -netiucv_stats (struct net_device * dev) +static struct net_device_stats *netiucv_stats (struct net_device * dev) { + struct netiucv_priv *priv = netdev_priv(dev); + IUCV_DBF_TEXT(trace, 5, __FUNCTION__); - return &((struct netiucv_priv *)dev->priv)->stats; + return &priv->stats; } /** - * Sets MTU of an interface. + * netiucv_change_mtu + * @dev: Pointer to interface struct. + * @new_mtu: The new MTU to use for this interface. * - * @param dev Pointer to interface struct. - * @param new_mtu The new MTU to use for this interface. + * Sets MTU of an interface. * - * @return 0 on success, -EINVAL if MTU is out of valid range. + * Returns 0 on success, -EINVAL if MTU is out of valid range. * (valid range is 576 .. NETIUCV_MTU_MAX). */ -static int -netiucv_change_mtu (struct net_device * dev, int new_mtu) +static int netiucv_change_mtu(struct net_device * dev, int new_mtu) { IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - if ((new_mtu < 576) || (new_mtu > NETIUCV_MTU_MAX)) { + if (new_mtu < 576 || new_mtu > NETIUCV_MTU_MAX) { IUCV_DBF_TEXT(setup, 2, "given MTU out of valid range\n"); return -EINVAL; } @@ -1353,12 +1366,12 @@ netiucv_change_mtu (struct net_device * dev, int new_mtu) return 0; } -/** +/* * attributes in sysfs - *****************************************************************************/ + */ -static ssize_t -user_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t user_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1366,8 +1379,8 @@ user_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%s\n", netiucv_printname(priv->conn->userid)); } -static ssize_t -user_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t user_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; struct net_device *ndev = priv->conn->netdev; @@ -1375,80 +1388,70 @@ user_write (struct device *dev, struct device_attribute *attr, const char *buf, char *tmp; char username[9]; int i; - struct iucv_connection **clist = &iucv_conns.iucv_connections; - unsigned long flags; + struct iucv_connection *cp; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - if (count>9) { - PRINT_WARN("netiucv: username too long (%d)!\n", (int)count); + if (count > 9) { + PRINT_WARN("netiucv: username too long (%d)!\n", (int) count); IUCV_DBF_TEXT_(setup, 2, - "%d is length of username\n", (int)count); + "%d is length of username\n", (int) count); return -EINVAL; } tmp = strsep((char **) &buf, "\n"); - for (i=0, p=tmp; i<8 && *p; i++, p++) { - if (isalnum(*p) || (*p == '$')) + for (i = 0, p = tmp; i < 8 && *p; i++, p++) { + if (isalnum(*p) || (*p == '$')) { username[i]= toupper(*p); - else if (*p == '\n') { + continue; + } + if (*p == '\n') { /* trailing lf, grr */ break; - } else { - PRINT_WARN("netiucv: Invalid char %c in username!\n", - *p); - IUCV_DBF_TEXT_(setup, 2, - "username: invalid character %c\n", - *p); - return -EINVAL; } + PRINT_WARN("netiucv: Invalid char %c in username!\n", *p); + IUCV_DBF_TEXT_(setup, 2, + "username: invalid character %c\n", *p); + return -EINVAL; } - while (i<8) + while (i < 8) username[i++] = ' '; username[8] = '\0'; - if (memcmp(username, priv->conn->userid, 9)) { - /* username changed */ - if (ndev->flags & (IFF_UP | IFF_RUNNING)) { - PRINT_WARN( - "netiucv: device %s active, connected to %s\n", - dev->bus_id, priv->conn->userid); - PRINT_WARN("netiucv: user cannot be updated\n"); - IUCV_DBF_TEXT(setup, 2, "user_write: device active\n"); - return -EBUSY; + if (memcmp(username, priv->conn->userid, 9) && + (ndev->flags & (IFF_UP | IFF_RUNNING))) { + /* username changed while the interface is active. */ + PRINT_WARN("netiucv: device %s active, connected to %s\n", + dev->bus_id, priv->conn->userid); + PRINT_WARN("netiucv: user cannot be updated\n"); + IUCV_DBF_TEXT(setup, 2, "user_write: device active\n"); + return -EBUSY; + } + read_lock_bh(&iucv_connection_rwlock); + list_for_each_entry(cp, &iucv_connection_list, list) { + if (!strncmp(username, cp->userid, 9) && cp->netdev != ndev) { + read_unlock_bh(&iucv_connection_rwlock); + PRINT_WARN("netiucv: Connection to %s already " + "exists\n", username); + return -EEXIST; } } - read_lock_irqsave(&iucv_conns.iucv_rwlock, flags); - while (*clist) { - if (!strncmp(username, (*clist)->userid, 9) || - ((*clist)->netdev != ndev)) - break; - clist = &((*clist)->next); - } - read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); - if (*clist) { - PRINT_WARN("netiucv: Connection to %s already exists\n", - username); - return -EEXIST; - } + read_unlock_bh(&iucv_connection_rwlock); memcpy(priv->conn->userid, username, 9); - return count; - } static DEVICE_ATTR(user, 0644, user_show, user_write); -static ssize_t -buffer_show (struct device *dev, struct device_attribute *attr, char *buf) -{ - struct netiucv_priv *priv = dev->driver_data; +static ssize_t buffer_show (struct device *dev, struct device_attribute *attr, + char *buf) +{ struct netiucv_priv *priv = dev->driver_data; IUCV_DBF_TEXT(trace, 5, __FUNCTION__); return sprintf(buf, "%d\n", priv->conn->max_buffsize); } -static ssize_t -buffer_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t buffer_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; struct net_device *ndev = priv->conn->netdev; @@ -1502,8 +1505,8 @@ buffer_write (struct device *dev, struct device_attribute *attr, const char *buf static DEVICE_ATTR(buffer, 0644, buffer_show, buffer_write); -static ssize_t -dev_fsm_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t dev_fsm_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1513,8 +1516,8 @@ dev_fsm_show (struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR(device_fsm_state, 0444, dev_fsm_show, NULL); -static ssize_t -conn_fsm_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t conn_fsm_show (struct device *dev, + struct device_attribute *attr, char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1524,8 +1527,8 @@ conn_fsm_show (struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR(connection_fsm_state, 0444, conn_fsm_show, NULL); -static ssize_t -maxmulti_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t maxmulti_show (struct device *dev, + struct device_attribute *attr, char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1533,8 +1536,9 @@ maxmulti_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.maxmulti); } -static ssize_t -maxmulti_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t maxmulti_write (struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1545,8 +1549,8 @@ maxmulti_write (struct device *dev, struct device_attribute *attr, const char *b static DEVICE_ATTR(max_tx_buffer_used, 0644, maxmulti_show, maxmulti_write); -static ssize_t -maxcq_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1554,8 +1558,8 @@ maxcq_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.maxcqueue); } -static ssize_t -maxcq_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t maxcq_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1566,8 +1570,8 @@ maxcq_write (struct device *dev, struct device_attribute *attr, const char *buf, static DEVICE_ATTR(max_chained_skbs, 0644, maxcq_show, maxcq_write); -static ssize_t -sdoio_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1575,8 +1579,8 @@ sdoio_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.doios_single); } -static ssize_t -sdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t sdoio_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1587,8 +1591,8 @@ sdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, static DEVICE_ATTR(tx_single_write_ops, 0644, sdoio_show, sdoio_write); -static ssize_t -mdoio_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1596,8 +1600,8 @@ mdoio_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.doios_multi); } -static ssize_t -mdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t mdoio_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1608,8 +1612,8 @@ mdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, static DEVICE_ATTR(tx_multi_write_ops, 0644, mdoio_show, mdoio_write); -static ssize_t -txlen_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t txlen_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1617,8 +1621,8 @@ txlen_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.txlen); } -static ssize_t -txlen_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t txlen_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1629,8 +1633,8 @@ txlen_write (struct device *dev, struct device_attribute *attr, const char *buf, static DEVICE_ATTR(netto_bytes, 0644, txlen_show, txlen_write); -static ssize_t -txtime_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t txtime_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1638,8 +1642,8 @@ txtime_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.tx_time); } -static ssize_t -txtime_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t txtime_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1650,8 +1654,8 @@ txtime_write (struct device *dev, struct device_attribute *attr, const char *buf static DEVICE_ATTR(max_tx_io_time, 0644, txtime_show, txtime_write); -static ssize_t -txpend_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t txpend_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1659,8 +1663,8 @@ txpend_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.tx_pending); } -static ssize_t -txpend_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t txpend_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1671,8 +1675,8 @@ txpend_write (struct device *dev, struct device_attribute *attr, const char *buf static DEVICE_ATTR(tx_pending, 0644, txpend_show, txpend_write); -static ssize_t -txmpnd_show (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr, + char *buf) { struct netiucv_priv *priv = dev->driver_data; @@ -1680,8 +1684,8 @@ txmpnd_show (struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%ld\n", priv->conn->prof.tx_max_pending); } -static ssize_t -txmpnd_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t txmpnd_write (struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; @@ -1721,8 +1725,7 @@ static struct attribute_group netiucv_stat_attr_group = { .attrs = netiucv_stat_attrs, }; -static inline int -netiucv_add_files(struct device *dev) +static inline int netiucv_add_files(struct device *dev) { int ret; @@ -1736,18 +1739,16 @@ netiucv_add_files(struct device *dev) return ret; } -static inline void -netiucv_remove_files(struct device *dev) +static inline void netiucv_remove_files(struct device *dev) { IUCV_DBF_TEXT(trace, 3, __FUNCTION__); sysfs_remove_group(&dev->kobj, &netiucv_stat_attr_group); sysfs_remove_group(&dev->kobj, &netiucv_attr_group); } -static int -netiucv_register_device(struct net_device *ndev) +static int netiucv_register_device(struct net_device *ndev) { - struct netiucv_priv *priv = ndev->priv; + struct netiucv_priv *priv = netdev_priv(ndev); struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL); int ret; @@ -1786,8 +1787,7 @@ out_unreg: return ret; } -static void -netiucv_unregister_device(struct device *dev) +static void netiucv_unregister_device(struct device *dev) { IUCV_DBF_TEXT(trace, 3, __FUNCTION__); netiucv_remove_files(dev); @@ -1798,107 +1798,89 @@ netiucv_unregister_device(struct device *dev) * Allocate and initialize a new connection structure. * Add it to the list of netiucv connections; */ -static struct iucv_connection * -netiucv_new_connection(struct net_device *dev, char *username) -{ - unsigned long flags; - struct iucv_connection **clist = &iucv_conns.iucv_connections; - struct iucv_connection *conn = - kzalloc(sizeof(struct iucv_connection), GFP_KERNEL); - - if (conn) { - skb_queue_head_init(&conn->collect_queue); - skb_queue_head_init(&conn->commit_queue); - spin_lock_init(&conn->collect_lock); - conn->max_buffsize = NETIUCV_BUFSIZE_DEFAULT; - conn->netdev = dev; - - conn->rx_buff = alloc_skb(NETIUCV_BUFSIZE_DEFAULT, - GFP_KERNEL | GFP_DMA); - if (!conn->rx_buff) { - kfree(conn); - return NULL; - } - conn->tx_buff = alloc_skb(NETIUCV_BUFSIZE_DEFAULT, - GFP_KERNEL | GFP_DMA); - if (!conn->tx_buff) { - kfree_skb(conn->rx_buff); - kfree(conn); - return NULL; - } - conn->fsm = init_fsm("netiucvconn", conn_state_names, - conn_event_names, NR_CONN_STATES, - NR_CONN_EVENTS, conn_fsm, CONN_FSM_LEN, - GFP_KERNEL); - if (!conn->fsm) { - kfree_skb(conn->tx_buff); - kfree_skb(conn->rx_buff); - kfree(conn); - return NULL; - } - fsm_settimer(conn->fsm, &conn->timer); - fsm_newstate(conn->fsm, CONN_STATE_INVALID); - - if (username) { - memcpy(conn->userid, username, 9); - fsm_newstate(conn->fsm, CONN_STATE_STOPPED); - } +static struct iucv_connection *netiucv_new_connection(struct net_device *dev, + char *username) +{ + struct iucv_connection *conn; - write_lock_irqsave(&iucv_conns.iucv_rwlock, flags); - conn->next = *clist; - *clist = conn; - write_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); + conn = kzalloc(sizeof(*conn), GFP_KERNEL); + if (!conn) + goto out; + skb_queue_head_init(&conn->collect_queue); + skb_queue_head_init(&conn->commit_queue); + spin_lock_init(&conn->collect_lock); + conn->max_buffsize = NETIUCV_BUFSIZE_DEFAULT; + conn->netdev = dev; + + conn->rx_buff = alloc_skb(conn->max_buffsize, GFP_KERNEL | GFP_DMA); + if (!conn->rx_buff) + goto out_conn; + conn->tx_buff = alloc_skb(conn->max_buffsize, GFP_KERNEL | GFP_DMA); + if (!conn->tx_buff) + goto out_rx; + conn->fsm = init_fsm("netiucvconn", conn_state_names, + conn_event_names, NR_CONN_STATES, + NR_CONN_EVENTS, conn_fsm, CONN_FSM_LEN, + GFP_KERNEL); + if (!conn->fsm) + goto out_tx; + + fsm_settimer(conn->fsm, &conn->timer); + fsm_newstate(conn->fsm, CONN_STATE_INVALID); + + if (username) { + memcpy(conn->userid, username, 9); + fsm_newstate(conn->fsm, CONN_STATE_STOPPED); } + + write_lock_bh(&iucv_connection_rwlock); + list_add_tail(&conn->list, &iucv_connection_list); + write_unlock_bh(&iucv_connection_rwlock); return conn; + +out_tx: + kfree_skb(conn->tx_buff); +out_rx: + kfree_skb(conn->rx_buff); +out_conn: + kfree(conn); +out: + return NULL; } /** * Release a connection structure and remove it from the * list of netiucv connections. */ -static void -netiucv_remove_connection(struct iucv_connection *conn) +static void netiucv_remove_connection(struct iucv_connection *conn) { - struct iucv_connection **clist = &iucv_conns.iucv_connections; - unsigned long flags; - IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - if (conn == NULL) - return; - write_lock_irqsave(&iucv_conns.iucv_rwlock, flags); - while (*clist) { - if (*clist == conn) { - *clist = conn->next; - write_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); - if (conn->handle) { - iucv_unregister_program(conn->handle); - conn->handle = NULL; - } - fsm_deltimer(&conn->timer); - kfree_fsm(conn->fsm); - kfree_skb(conn->rx_buff); - kfree_skb(conn->tx_buff); - return; - } - clist = &((*clist)->next); + write_lock_bh(&iucv_connection_rwlock); + list_del_init(&conn->list); + write_unlock_bh(&iucv_connection_rwlock); + if (conn->path) { + iucv_path_sever(conn->path, iucvMagic); + kfree(conn->path); + conn->path = NULL; } - write_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); + fsm_deltimer(&conn->timer); + kfree_fsm(conn->fsm); + kfree_skb(conn->rx_buff); + kfree_skb(conn->tx_buff); } /** * Release everything of a net device. */ -static void -netiucv_free_netdevice(struct net_device *dev) +static void netiucv_free_netdevice(struct net_device *dev) { - struct netiucv_priv *privptr; + struct netiucv_priv *privptr = netdev_priv(dev); IUCV_DBF_TEXT(trace, 3, __FUNCTION__); if (!dev) return; - privptr = (struct netiucv_priv *)dev->priv; if (privptr) { if (privptr->conn) netiucv_remove_connection(privptr->conn); @@ -1913,11 +1895,8 @@ netiucv_free_netdevice(struct net_device *dev) /** * Initialize a net device. (Called from kernel in alloc_netdev()) */ -static void -netiucv_setup_netdevice(struct net_device *dev) +static void netiucv_setup_netdevice(struct net_device *dev) { - memset(dev->priv, 0, sizeof(struct netiucv_priv)); - dev->mtu = NETIUCV_MTU_DEFAULT; dev->hard_start_xmit = netiucv_tx; dev->open = netiucv_open; @@ -1936,8 +1915,7 @@ netiucv_setup_netdevice(struct net_device *dev) /** * Allocate and initialize everything of a net device. */ -static struct net_device * -netiucv_init_netdevice(char *username) +static struct net_device *netiucv_init_netdevice(char *username) { struct netiucv_priv *privptr; struct net_device *dev; @@ -1946,40 +1924,40 @@ netiucv_init_netdevice(char *username) netiucv_setup_netdevice); if (!dev) return NULL; - if (dev_alloc_name(dev, dev->name) < 0) { - free_netdev(dev); - return NULL; - } + if (dev_alloc_name(dev, dev->name) < 0) + goto out_netdev; - privptr = (struct netiucv_priv *)dev->priv; + privptr = netdev_priv(dev); privptr->fsm = init_fsm("netiucvdev", dev_state_names, dev_event_names, NR_DEV_STATES, NR_DEV_EVENTS, dev_fsm, DEV_FSM_LEN, GFP_KERNEL); - if (!privptr->fsm) { - free_netdev(dev); - return NULL; - } + if (!privptr->fsm) + goto out_netdev; + privptr->conn = netiucv_new_connection(dev, username); if (!privptr->conn) { - kfree_fsm(privptr->fsm); - free_netdev(dev); IUCV_DBF_TEXT(setup, 2, "NULL from netiucv_new_connection\n"); - return NULL; + goto out_fsm; } fsm_newstate(privptr->fsm, DEV_STATE_STOPPED); - return dev; + +out_fsm: + kfree_fsm(privptr->fsm); +out_netdev: + free_netdev(dev); + return NULL; } -static ssize_t -conn_write(struct device_driver *drv, const char *buf, size_t count) +static ssize_t conn_write(struct device_driver *drv, + const char *buf, size_t count) { - char *p; + const char *p; char username[9]; - int i, ret; + int i, rc; struct net_device *dev; - struct iucv_connection **clist = &iucv_conns.iucv_connections; - unsigned long flags; + struct netiucv_priv *priv; + struct iucv_connection *cp; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); if (count>9) { @@ -1988,83 +1966,82 @@ conn_write(struct device_driver *drv, const char *buf, size_t count) return -EINVAL; } - for (i=0, p=(char *)buf; i<8 && *p; i++, p++) { - if (isalnum(*p) || (*p == '$')) - username[i]= toupper(*p); - else if (*p == '\n') { + for (i = 0, p = buf; i < 8 && *p; i++, p++) { + if (isalnum(*p) || *p == '$') { + username[i] = toupper(*p); + continue; + } + if (*p == '\n') /* trailing lf, grr */ break; - } else { - PRINT_WARN("netiucv: Invalid character in username!\n"); - IUCV_DBF_TEXT_(setup, 2, - "conn_write: invalid character %c\n", *p); - return -EINVAL; - } + PRINT_WARN("netiucv: Invalid character in username!\n"); + IUCV_DBF_TEXT_(setup, 2, + "conn_write: invalid character %c\n", *p); + return -EINVAL; } - while (i<8) + while (i < 8) username[i++] = ' '; username[8] = '\0'; - read_lock_irqsave(&iucv_conns.iucv_rwlock, flags); - while (*clist) { - if (!strncmp(username, (*clist)->userid, 9)) - break; - clist = &((*clist)->next); - } - read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); - if (*clist) { - PRINT_WARN("netiucv: Connection to %s already exists\n", - username); - return -EEXIST; + read_lock_bh(&iucv_connection_rwlock); + list_for_each_entry(cp, &iucv_connection_list, list) { + if (!strncmp(username, cp->userid, 9)) { + read_unlock_bh(&iucv_connection_rwlock); + PRINT_WARN("netiucv: Connection to %s already " + "exists\n", username); + return -EEXIST; + } } + read_unlock_bh(&iucv_connection_rwlock); + dev = netiucv_init_netdevice(username); if (!dev) { - PRINT_WARN( - "netiucv: Could not allocate network device structure " - "for user '%s'\n", netiucv_printname(username)); + PRINT_WARN("netiucv: Could not allocate network device " + "structure for user '%s'\n", + netiucv_printname(username)); IUCV_DBF_TEXT(setup, 2, "NULL from netiucv_init_netdevice\n"); return -ENODEV; } - if ((ret = netiucv_register_device(dev))) { + rc = netiucv_register_device(dev); + if (rc) { IUCV_DBF_TEXT_(setup, 2, - "ret %d from netiucv_register_device\n", ret); + "ret %d from netiucv_register_device\n", rc); goto out_free_ndev; } /* sysfs magic */ - SET_NETDEV_DEV(dev, - (struct device*)((struct netiucv_priv*)dev->priv)->dev); + priv = netdev_priv(dev); + SET_NETDEV_DEV(dev, priv->dev); - if ((ret = register_netdev(dev))) { - netiucv_unregister_device((struct device*) - ((struct netiucv_priv*)dev->priv)->dev); - goto out_free_ndev; - } + rc = register_netdev(dev); + if (rc) + goto out_unreg; PRINT_INFO("%s: '%s'\n", dev->name, netiucv_printname(username)); return count; +out_unreg: + netiucv_unregister_device(priv->dev); out_free_ndev: PRINT_WARN("netiucv: Could not register '%s'\n", dev->name); IUCV_DBF_TEXT(setup, 2, "conn_write: could not register\n"); netiucv_free_netdevice(dev); - return ret; + return rc; } static DRIVER_ATTR(connection, 0200, NULL, conn_write); -static ssize_t -remove_write (struct device_driver *drv, const char *buf, size_t count) +static ssize_t remove_write (struct device_driver *drv, + const char *buf, size_t count) { - struct iucv_connection **clist = &iucv_conns.iucv_connections; - unsigned long flags; + struct iucv_connection *cp; struct net_device *ndev; struct netiucv_priv *priv; struct device *dev; char name[IFNAMSIZ]; - char *p; + const char *p; int i; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); @@ -2072,33 +2049,27 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) if (count >= IFNAMSIZ) count = IFNAMSIZ - 1;; - for (i=0, p=(char *)buf; i<count && *p; i++, p++) { - if ((*p == '\n') || (*p == ' ')) { + for (i = 0, p = buf; i < count && *p; i++, p++) { + if (*p == '\n' || *p == ' ') /* trailing lf, grr */ break; - } else { - name[i]=*p; - } + name[i] = *p; } name[i] = '\0'; - read_lock_irqsave(&iucv_conns.iucv_rwlock, flags); - while (*clist) { - ndev = (*clist)->netdev; - priv = (struct netiucv_priv*)ndev->priv; + read_lock_bh(&iucv_connection_rwlock); + list_for_each_entry(cp, &iucv_connection_list, list) { + ndev = cp->netdev; + priv = netdev_priv(ndev); dev = priv->dev; - - if (strncmp(name, ndev->name, count)) { - clist = &((*clist)->next); - continue; - } - read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); + if (strncmp(name, ndev->name, count)) + continue; + read_unlock_bh(&iucv_connection_rwlock); if (ndev->flags & (IFF_UP | IFF_RUNNING)) { - PRINT_WARN( - "netiucv: net device %s active with peer %s\n", - ndev->name, priv->conn->userid); + PRINT_WARN("netiucv: net device %s active with peer " + "%s\n", ndev->name, priv->conn->userid); PRINT_WARN("netiucv: %s cannot be removed\n", - ndev->name); + ndev->name); IUCV_DBF_TEXT(data, 2, "remove_write: still active\n"); return -EBUSY; } @@ -2106,7 +2077,7 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) netiucv_unregister_device(dev); return count; } - read_unlock_irqrestore(&iucv_conns.iucv_rwlock, flags); + read_unlock_bh(&iucv_connection_rwlock); PRINT_WARN("netiucv: net device %s unknown\n", name); IUCV_DBF_TEXT(data, 2, "remove_write: unknown device\n"); return -EINVAL; @@ -2114,67 +2085,86 @@ remove_write (struct device_driver *drv, const char *buf, size_t count) static DRIVER_ATTR(remove, 0200, NULL, remove_write); -static void -netiucv_banner(void) +static struct attribute * netiucv_drv_attrs[] = { + &driver_attr_connection.attr, + &driver_attr_remove.attr, + NULL, +}; + +static struct attribute_group netiucv_drv_attr_group = { + .attrs = netiucv_drv_attrs, +}; + +static void netiucv_banner(void) { PRINT_INFO("NETIUCV driver initialized\n"); } -static void __exit -netiucv_exit(void) +static void __exit netiucv_exit(void) { + struct iucv_connection *cp; + struct net_device *ndev; + struct netiucv_priv *priv; + struct device *dev; + IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - while (iucv_conns.iucv_connections) { - struct net_device *ndev = iucv_conns.iucv_connections->netdev; - struct netiucv_priv *priv = (struct netiucv_priv*)ndev->priv; - struct device *dev = priv->dev; + while (!list_empty(&iucv_connection_list)) { + cp = list_entry(iucv_connection_list.next, + struct iucv_connection, list); + list_del(&cp->list); + ndev = cp->netdev; + priv = netdev_priv(ndev); + dev = priv->dev; unregister_netdev(ndev); netiucv_unregister_device(dev); } - driver_remove_file(&netiucv_driver, &driver_attr_connection); - driver_remove_file(&netiucv_driver, &driver_attr_remove); + sysfs_remove_group(&netiucv_driver.kobj, &netiucv_drv_attr_group); driver_unregister(&netiucv_driver); + iucv_unregister(&netiucv_handler, 1); iucv_unregister_dbf_views(); PRINT_INFO("NETIUCV driver unloaded\n"); return; } -static int __init -netiucv_init(void) +static int __init netiucv_init(void) { - int ret; + int rc; - ret = iucv_register_dbf_views(); - if (ret) { - PRINT_WARN("netiucv_init failed, " - "iucv_register_dbf_views rc = %d\n", ret); - return ret; - } + rc = iucv_register_dbf_views(); + if (rc) + goto out; + rc = iucv_register(&netiucv_handler, 1); + if (rc) + goto out_dbf; IUCV_DBF_TEXT(trace, 3, __FUNCTION__); - ret = driver_register(&netiucv_driver); - if (ret) { + rc = driver_register(&netiucv_driver); + if (rc) { PRINT_ERR("NETIUCV: failed to register driver.\n"); - IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", ret); - iucv_unregister_dbf_views(); - return ret; + IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", rc); + goto out_iucv; } - /* Add entry for specifying connections. */ - ret = driver_create_file(&netiucv_driver, &driver_attr_connection); - if (!ret) { - ret = driver_create_file(&netiucv_driver, &driver_attr_remove); - netiucv_banner(); - rwlock_init(&iucv_conns.iucv_rwlock); - } else { - PRINT_ERR("NETIUCV: failed to add driver attribute.\n"); - IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_create_file\n", ret); - driver_unregister(&netiucv_driver); - iucv_unregister_dbf_views(); + rc = sysfs_create_group(&netiucv_driver.kobj, &netiucv_drv_attr_group); + if (rc) { + PRINT_ERR("NETIUCV: failed to add driver attributes.\n"); + IUCV_DBF_TEXT_(setup, 2, + "ret %d - netiucv_drv_attr_group\n", rc); + goto out_driver; } - return ret; + netiucv_banner(); + return rc; + +out_driver: + driver_unregister(&netiucv_driver); +out_iucv: + iucv_unregister(&netiucv_handler, 1); +out_dbf: + iucv_unregister_dbf_views(); +out: + return rc; } module_init(netiucv_init); 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); |