The visoruislib module is a support library, used to handle requests
from virtpci.
Signed-off-by: Ken Cox <jkc@xxxxxxxxxx>
Cc: Ben Romer <sparmaintainer@xxxxxxxxxx>
Index: linux-2.6.staging/drivers/staging/unisys/Kconfig
===================================================================
--- linux-2.6.staging.orig/drivers/staging/unisys/Kconfig
+++ linux-2.6.staging/drivers/staging/unisys/Kconfig
@@ -13,5 +13,6 @@ source "drivers/staging/unisys/visorutil
source "drivers/staging/unisys/visorchannel/Kconfig"
source "drivers/staging/unisys/visorchipset/Kconfig"
source "drivers/staging/unisys/channels/Kconfig"
+source "drivers/staging/unisys/uislib/Kconfig"
endif # UNISYSSPAR
Index: linux-2.6.staging/drivers/staging/unisys/Makefile
===================================================================
--- linux-2.6.staging.orig/drivers/staging/unisys/Makefile
+++ linux-2.6.staging/drivers/staging/unisys/Makefile
@@ -5,4 +5,4 @@ obj-$(CONFIG_UNISYS_VISORUTIL) += visor
obj-$(CONFIG_UNISYS_VISORCHANNEL) += visorchannel/
obj-$(CONFIG_UNISYS_VISORCHIPSET) += visorchipset/
obj-$(CONFIG_UNISYS_CHANNELSTUB) += channels/
-
+obj-$(CONFIG_UNISYS_UISLIB) += uislib/
Index: linux-2.6.staging/drivers/staging/unisys/include/sparstop.h
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/include/sparstop.h
@@ -0,0 +1,30 @@
+/* sparstop.h
+ *
+ * Copyright © 2010 - 2013 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+#ifndef __SPARSTOP_H__
+#define __SPARSTOP_H__
+
+#include "timskmod.h"
+#include "version.h"
+#include <linux/ctype.h>
+
+typedef void (*SPARSTOP_COMPLETE_FUNC) (void *context, int status);
+
+int sp_stop(void *context, SPARSTOP_COMPLETE_FUNC get_complete_func);
+void test_remove_stop_device(void);
+
+#endif
Index: linux-2.6.staging/drivers/staging/unisys/uislib/Kconfig
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/uislib/Kconfig
@@ -0,0 +1,10 @@
+#
+# Unisys uislib configuration
+#
+
+config UNISYS_UISLIB
+ tristate "Unisys uislib driver"
+ depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_CHANNELSTUB
+ ---help---
+ If you say Y here, you will enable the Unisys uislib driver.
+
Index: linux-2.6.staging/drivers/staging/unisys/uislib/Makefile
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/uislib/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for Unisys uislib
+#
+
+obj-$(CONFIG_UNISYS_UISLIB) += visoruislib.o
+
+visoruislib-y := uislib.o uisqueue.o uisthread.o uisutils.o
+
+ccflags-y += -Idrivers/staging/unisys/include
+ccflags-y += -Idrivers/staging/unisys/channels
+ccflags-y += -Idrivers/staging/unisys/visorchipset
+ccflags-y += -Idrivers/staging/unisys/sparstopdriver
+ccflags-y += -Idrivers/staging/unisys/common-spar/include
+ccflags-y += -Idrivers/staging/unisys/common-spar/include/channels
+
+ccflags-y += -DCONFIG_SPAR_GUEST -DGUESTDRIVERBUILD -DNOAUTOVERSION
+
Index: linux-2.6.staging/drivers/staging/unisys/uislib/uislib.c
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/uislib/uislib.c
@@ -0,0 +1,2536 @@
+/* uislib.c
+ *
+ * Copyright � 2010 - 2013 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * 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 of the License, 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, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+/* @ALL_INSPECTED */
+#define EXPORT_SYMTAB
+#include <linux/kernel.h>
+#include <linux/highmem.h>
+#ifdef CONFIG_MODVERSIONS
+#include <config/modversions.h>
+#endif
+#include <linux/module.h>
+
+#include "commontypes.h"
+
+#include <linux/version.h>
+#include "uniklog.h"
+#include "diagnostics/appos_subsystems.h"
+#include "uisutils.h"
+#include "vbuschannel.h"
+
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h> /* for copy_from_user */
+#include <linux/ctype.h> /* for toupper */
+#include <linux/list.h>
+
+#include "sparstop.h"
+#include "visorchipset.h"
+#include "chanstub.h"
+#include "version.h"
+#include "guestlinuxdebug.h"
+
+#define SET_PROC_OWNER(x, y)
+
+#define UISLIB_TEST_PROC
+#define POLLJIFFIES_NORMAL 1
+/* Choose whether or not you want to wakeup the request-polling thread
+ * after an IO termination:
+ * this is shorter than using __FILE__ (full path name) in
+ * debug/info/error messages
+ */
+#define CURRENT_FILE_PC UISLIB_PC_uislib_c
+#define __MYFILE__ "uislib.c"
+
+/* global function pointers that act as callback functions into
virtpcimod */
+int (*VirtControlChanFunc)(struct guest_msgs *);
+
+static int ProcReadBufferValid;
+static char *ProcReadBuffer; /* Note this MUST be global,
+ * because the contents must */
+static unsigned int chipset_inited;
+int callback_count = 0;
+#define WAIT_ON_CALLBACK(handle) \
+ do { \
+ if (handle) \
+ break; \
+ UIS_THREAD_WAIT; \
+ } while (1)
+
+static struct bus_info *BusListHead;
+static rwlock_t BusListLock;
+static int BusListCount; /* number of buses in the list */
+static int MaxBusCount; /* maximum number of buses expected */
+static U64 PhysicalDataChan;
+static int PlatformNumber;
+
+/* This is a list of controlvm messages which could not complete
+ * immediately, but instead must be occasionally retried until they
+ * ultimately succeed/fail. When this happens,
+ * msg->hdr.Flags.responseExpected determines whether or not we will
+ * send a controlvm response.
+ */
+struct controlvm_retry_entry {
+ CONTROLVM_MESSAGE msg;
+ struct io_msgs cmd;
+ void *obj;
+ int (*controlChanFunc)(struct io_msgs *);
+ struct list_head list_link;
+};
+LIST_HEAD(ControlVmRetryQHead);
+
+static struct uisthread_info Incoming_ThreadInfo;
+static BOOL Incoming_Thread_Started = FALSE;
+LIST_HEAD(List_Polling_Device_Channels);
+unsigned long long tot_moved_to_tail_cnt = 0;
+unsigned long long tot_wait_cnt = 0;
+unsigned long long tot_wakeup_cnt = 0;
+unsigned long long tot_schedule_cnt = 0;
+int en_smart_wakeup = 1;
+static DEFINE_SEMAPHORE(Lock_Polling_Device_Channels); /* unlocked */
+DECLARE_WAIT_QUEUE_HEAD(Wakeup_Polling_Device_Channels);
+static int Go_Polling_Device_Channels;
+
+static struct proc_dir_entry *uislib_proc_dir;
+static struct proc_dir_entry *uislib_proc_vbus_dir;
+static struct proc_dir_entry *vnic_proc_entry; /* Used to be
"datachan" */
+static struct proc_dir_entry *ctrlchan_proc_entry;
+static struct proc_dir_entry *pmem_proc_entry;
+static struct proc_dir_entry *info_proc_entry;
+static struct proc_dir_entry *switch_proc_entry;
+static struct proc_dir_entry *extport_proc_entry;
+static struct proc_dir_entry *platformnumber_proc_entry;
+static struct proc_dir_entry *bus_proc_entry;
+static struct proc_dir_entry *dev_proc_entry;
+static struct proc_dir_entry *chipset_proc_entry;
+static struct proc_dir_entry *cycles_before_wait_proc_entry;
+static struct proc_dir_entry *reset_counts_proc_entry;
+static struct proc_dir_entry *smart_wakeup_proc_entry;
+static struct proc_dir_entry *disable_proc_entry;
+
+#define DIR_PROC_ENTRY "uislib"
+#define DIR_VBUS_PROC_ENTRY "vbus"
+#define VNIC_PROC_ENTRY_FN "vnic" /* Used to be "datachan" */
+#define CTRLCHAN_PROC_ENTRY_FN "ctrlchan"
+#define PMEM_PROC_ENTRY_FN "phys_to_virt"
+#define INFO_PROC_ENTRY_FN "info"
+#define SWITCH_PROC_ENTRY_FN "switch"
+#define SWITCH_COUNT_PROC_ENTRY_FN "switch_count"
+#define EXTPORT_PROC_ENTRY_FN "extport"
+#define PLATFORMNUMBER_PROC_ENTRY_FN "platform"
+#define BUS_PROC_ENTRY_FN "bus"
+#define DEV_PROC_ENTRY_FN "device"
+#define CHIPSET_PROC_ENTRY_FN "chipset"
+#define CYCLES_BEFORE_WAIT_PROC_ENTRY_FN "cycles_before_wait"
+#define RESET_COUNTS_PROC_ENTRY_FN "reset_counts"
+#define SMART_WAKEUP_PROC_ENTRY_FN "smart_wakeup"
+#define CALLHOME_PROC_ENTRY_FN "callhome"
+#define CALLHOME_THROTTLED_PROC_ENTRY_FN "callhome_throttled"
+#define DISABLE_PROC_ENTRY_FN "switch_state"
+#ifdef UISLIB_TEST_PROC
+static struct proc_dir_entry *test_proc_entry;
+#define TEST_PROC_ENTRY_FN "test"
+#endif
+unsigned long long cycles_before_wait, wait_cycles;
+
+/*****************************************************/
+/* local functions */
+/*****************************************************/
+
+static int proc_info_vbus_show(struct seq_file *m, void *v);
+static int
+proc_info_vbus_open(struct inode *inode, struct file *filp)
+{
+ /* proc_info_vbus_show will grab this from seq_file.private: */
+ struct bus_info *bus = PDE_DATA(inode);
+ return single_open(filp, proc_info_vbus_show, bus);
+}
+
+static const struct file_operations proc_info_vbus_fops = {
+ .open = proc_info_vbus_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static ssize_t uislib_proc_read_writeonly(struct file *file,
+ char __user *buffer,
+ size_t count, loff_t *ppos);
+
+static ssize_t vnic_proc_write(struct file *file, const char __user
*buffer,
+ size_t count, loff_t *ppos);
+
+static const struct file_operations proc_vnic_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = vnic_proc_write,
+};
+
+static ssize_t chipset_proc_write(struct file *file, const char __user
*buffer,
+ size_t count, loff_t *ppos);
+
+static const struct file_operations proc_chipset_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = chipset_proc_write,
+};
+
+static ssize_t info_proc_read(struct file *file, char __user *buf,
+ size_t len, loff_t *offset);
+static const struct file_operations proc_info_fops = {
+ .read = info_proc_read,
+};
+
+static ssize_t platformnumber_proc_read(struct file *file, char __user
*buf,
+ size_t len, loff_t *offset);
+static const struct file_operations proc_platformnumber_fops = {
+ .read = platformnumber_proc_read,
+};
+
+static ssize_t cycles_before_wait_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos);
+static const struct file_operations proc_cycles_before_wait_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = cycles_before_wait_proc_write,
+};
+
+static ssize_t reset_counts_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos);
+static const struct file_operations proc_reset_counts_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = reset_counts_proc_write,
+};
+
+static ssize_t smart_wakeup_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos);
+static const struct file_operations proc_smart_wakeup_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = smart_wakeup_proc_write,
+};
+
+static ssize_t test_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos);
+static const struct file_operations proc_test_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = test_proc_write,
+};
+
+static ssize_t bus_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos);
+static const struct file_operations proc_bus_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = bus_proc_write,
+};
+
+static ssize_t dev_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos);
+static const struct file_operations proc_dev_fops = {
+ .read = uislib_proc_read_writeonly,
+ .write = dev_proc_write,
+};
+
+static void
+init_msg_header(CONTROLVM_MESSAGE *msg, U32 id, uint rsp, uint svr)
+{
+ memset(msg, 0, sizeof(CONTROLVM_MESSAGE));
+ msg->hdr.Id = id;
+ msg->hdr.Flags.responseExpected = rsp;
+ msg->hdr.Flags.server = svr;
+}
+
+static void
+create_bus_proc_entries(struct bus_info *bus)
+{
+ bus->proc_dir = proc_mkdir(bus->name, uislib_proc_vbus_dir);
+ if (!bus->proc_dir) {
+ LOGERR("failed to create /proc/uislib/vbus/%s directory",
+ bus->name);
+ return;
+ }
+ bus->proc_info = proc_create_data("info", 0, bus->proc_dir,
+ &proc_info_vbus_fops, bus);
+ if (!bus->proc_info) {
+ LOGERR("failed to create /proc/uislib/vbus/%s/info", bus->name);
+ remove_proc_entry(bus->name, uislib_proc_vbus_dir);
+ bus->proc_dir = NULL;
+ return;
+ }
+ SET_PROC_OWNER(bus->proc_info, THIS_MODULE);
+
+}
+
+static void *
+init_vbus_channel(U64 channelAddr, U32 channelBytes, int isServer)
+{
+ void *rc = NULL;
+ void *pChan = uislib_ioremap_cache(channelAddr, channelBytes);
+ if (!pChan) {
+ LOGERR("CONTROLVM_BUS_CREATE error: ioremap_cache of
channelAddr:%Lx for channelBytes:%llu failed",
+ (unsigned long long) channelAddr,
+ (unsigned long long) channelBytes);
+ RETPTR(NULL);
+ }
+ if (isServer) {
+ memset(pChan, 0, channelBytes);
+ if (!ULTRA_VBUS_CHANNEL_OK_SERVER(channelBytes, NULL)) {
+ ERRDRV("%s channel cannot be used", __func__);
+ uislib_iounmap(pChan);
+ RETPTR(NULL);
+ }
+ ULTRA_VBUS_init_channel(pChan, channelBytes);
+ } else {
+ if (!ULTRA_VBUS_CHANNEL_OK_CLIENT(pChan, NULL)) {
+ ERRDRV("%s channel cannot be used", __func__);
+ uislib_iounmap(pChan);
+ RETPTR(NULL);
+ }
+ }
+ RETPTR(pChan);
+Away:
+ return rc;
+}
+
+static int
+create_bus(CONTROLVM_MESSAGE *msg, char *buf)
+{
+ U32 busNo, deviceCount;
+ struct bus_info *tmp, *bus;
+ size_t size;
+
+ if (MaxBusCount == BusListCount) {
+ LOGERR("CONTROLVM_BUS_CREATE Failed: max buses:%d already
created\n",
+ MaxBusCount);
+ POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, MaxBusCount,
+ POSTCODE_SEVERITY_ERR);
+ return CONTROLVM_RESP_ERROR_MAX_BUSES;
+ }
+
+ busNo = msg->cmd.createBus.busNo;
+ deviceCount = msg->cmd.createBus.deviceCount;
+
+ POSTCODE_LINUX_4(BUS_CREATE_ENTRY_PC, busNo, deviceCount,
+ POSTCODE_SEVERITY_INFO);
+
+ size =
+ sizeof(struct bus_info) +
+ (deviceCount * sizeof(struct device_info *));
+ bus = UISMALLOC(size, GFP_ATOMIC);
+ if (!bus) {
+ LOGERR("CONTROLVM_BUS_CREATE Failed: kmalloc for bus failed.\n");
+ POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo,
+ POSTCODE_SEVERITY_ERR);
+ return CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
+ }
+
+ memset(bus, 0, size);
+
+ /* Currently by default, the bus Number is the GuestHandle.
+ * Configure Bus message can override this.
+ */
+ if (msg->hdr.Flags.testMessage) {
+ /* This implies we're the IOVM so set guest handle to 0... */
+ bus->guestHandle = 0;
+ bus->busNo = busNo;
+ bus->localVnic = 1;
+ } else
+ bus->busNo = bus->guestHandle = busNo;
+ sprintf(bus->name, "%d", (int) bus->busNo);
+ bus->deviceCount = deviceCount;
+ bus->device =
+ (struct device_info **) ((char *) bus + sizeof(struct bus_info));
+ bus->busInstGuid = msg->cmd.createBus.busInstGuid;
+ bus->busChannelBytes = 0;
+ bus->pBusChannel = NULL;
+
+ /* add bus to our bus list - but check for duplicates first */
+ read_lock(&BusListLock);
+ for (tmp = BusListHead; tmp; tmp = tmp->next) {
+ if (tmp->busNo == bus->busNo)
+ break;
+ }
+ read_unlock(&BusListLock);
+ if (tmp) {
+ /* found a bus already in the list with same busNo -
+ * reject add
+ */
+ LOGERR("CONTROLVM_BUS_CREATE Failed: bus %d already exists.\n",
+ bus->busNo);
+ POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->busNo,
+ POSTCODE_SEVERITY_ERR);
+ UISFREE(bus, size);
+ return CONTROLVM_RESP_ERROR_ALREADY_DONE;
+ }
+ if ((msg->cmd.createBus.channelAddr != 0)
+ && (msg->cmd.createBus.channelBytes != 0)) {
+ bus->busChannelBytes = msg->cmd.createBus.channelBytes;
+ bus->pBusChannel =
+ init_vbus_channel(msg->cmd.createBus.channelAddr,
+ msg->cmd.createBus.channelBytes,
+ msg->hdr.Flags.server);
+ }
+ /* the msg is bound for virtpci; send guest_msgs struct to callback */
+ if (!msg->hdr.Flags.server) {
+ struct guest_msgs cmd;
+ cmd.msgtype = GUEST_ADD_VBUS;
+ cmd.add_vbus.busNo = busNo;
+ cmd.add_vbus.chanptr = bus->pBusChannel;
+ cmd.add_vbus.deviceCount = deviceCount;
+ cmd.add_vbus.busTypeGuid = msg->cmd.createBus.busDataTypeGuid;
+ cmd.add_vbus.busInstGuid = msg->cmd.createBus.busInstGuid;
+ if (!VirtControlChanFunc) {
+ UISFREE(bus, size);
+ LOGERR("CONTROLVM_BUS_CREATE Failed: virtpci callback not
registered.");
+ POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->busNo,
+ POSTCODE_SEVERITY_ERR);
+ return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
+ }
+ if (!VirtControlChanFunc(&cmd)) {
+ UISFREE(bus, size);
+ LOGERR("CONTROLVM_BUS_CREATE Failed: virtpci GUEST_ADD_VBUS
returned error.");
+ POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->busNo,
+ POSTCODE_SEVERITY_ERR);
+ return
+ CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
+ }
+ }
+ create_bus_proc_entries(bus);
+
+ /* add bus at the head of our list */
+ write_lock(&BusListLock);
+ if (!BusListHead)
+ BusListHead = bus;
+ else {
+ bus->next = BusListHead;
+ BusListHead = bus;
+ }
+ BusListCount++;
+ write_unlock(&BusListLock);
+
+ POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, bus->busNo,
+ POSTCODE_SEVERITY_INFO);
+ return CONTROLVM_RESP_SUCCESS;
+}
+
+static int
+destroy_bus(CONTROLVM_MESSAGE *msg, char *buf)
+{
+ int i;
+ struct bus_info *bus, *prev = NULL;
+ U32 busNo;
+
+ busNo = msg->cmd.destroyBus.busNo;
+
+ /* find and delete the bus */
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; prev = bus, bus = bus->next) {
+ if (bus->busNo == busNo) {
+ /* found the bus - ensure that all device
+ * slots are NULL
+ */
+ for (i = 0; i < bus->deviceCount; i++) {
+ if (bus->device[i] != NULL) {
+ LOGERR("CONTROLVM_BUS_DESTROY Failed: device %i
attached to bus %d.",
+ i, busNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_BUS_DEVICE_ATTACHED;
+ }
+ }
+ read_unlock(&BusListLock);
+ /* the msg is bound for virtpci; send
+ * guest_msgs struct to callback
+ */
+ if (!msg->hdr.Flags.server) {
+ struct guest_msgs cmd;
+ cmd.msgtype = GUEST_DEL_VBUS;
+ cmd.del_vbus.busNo = busNo;
+ if (!VirtControlChanFunc) {
+ LOGERR("CONTROLVM_BUS_DESTROY Failed: virtpci
callback not registered.");
+ return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
+ }
+ if (!VirtControlChanFunc(&cmd)) {
+ LOGERR("CONTROLVM_BUS_DESTROY Failed: virtpci
GUEST_DEL_VBUS returned error.");
+ return
CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
+ }
+ }
+ /* remove the bus from the list */
+ write_lock(&BusListLock);
+ if (prev) /* not at head */
+ prev->next = bus->next;
+ else
+ BusListHead = bus->next;
+ BusListCount--;
+ write_unlock(&BusListLock);
+ break;
+ }
+ }
+
+ if (!bus) {
+ LOGERR("CONTROLVM_BUS_DESTROY Failed: failed to find bus %d.\n",
+ busNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_ALREADY_DONE;
+ }
+ if (bus->proc_info) {
+ remove_proc_entry("info", bus->proc_dir);
+ bus->proc_info = NULL;
+ }
+ if (bus->proc_dir) {
+ remove_proc_entry(bus->name, uislib_proc_vbus_dir);
+ bus->proc_dir = NULL;
+ }
+ if (bus->pBusChannel) {
+ uislib_iounmap(bus->pBusChannel);
+ bus->pBusChannel = NULL;
+ }
+
+ UISFREE(bus,
+ sizeof(struct bus_info) +
+ (bus->deviceCount * sizeof(struct device_info *)));
+ return CONTROLVM_RESP_SUCCESS;
+}
+
+static int
+create_device(CONTROLVM_MESSAGE *msg, char *buf)
+{
+ struct device_info *dev;
+ struct bus_info *bus;
+ U32 busNo, devNo;
+ int result = CONTROLVM_RESP_SUCCESS;
+ U64 minSize = MIN_IO_CHANNEL_SIZE;
+ ReqHandlerInfo_t *pReqHandler;
+
+ busNo = msg->cmd.createDevice.busNo;
+ devNo = msg->cmd.createDevice.devNo;
+
+ POSTCODE_LINUX_4(DEVICE_CREATE_ENTRY_PC, devNo, busNo,
+ POSTCODE_SEVERITY_INFO);
+
+ dev = UISMALLOC(sizeof(struct device_info), GFP_ATOMIC);
+ if (!dev) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: kmalloc for dev
failed.\n");
+ POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ return CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
+ }
+
+ memset(dev, 0, sizeof(struct device_info));
+ dev->channelTypeGuid = msg->cmd.createDevice.dataTypeGuid;
+ dev->intr = msg->cmd.createDevice.intr;
+ dev->channelAddr = msg->cmd.createDevice.channelAddr;
+ dev->busNo = busNo;
+ dev->devNo = devNo;
+ sema_init(&dev->interrupt_callback_lock, 1); /* unlocked */
+ sprintf(dev->devid, "vbus%u:dev%u", (unsigned) busNo, (unsigned)
devNo);
+ /* map the channel memory for the device. */
+ if (msg->hdr.Flags.testMessage)
+ dev->chanptr = __va(dev->channelAddr);
+ else {
+ pReqHandler = ReqHandlerFind(dev->channelTypeGuid);
+ if (pReqHandler)
+ /* generic service handler registered for this
+ * channel
+ */
+ minSize = pReqHandler->min_channel_bytes;
+ if (minSize > msg->cmd.createDevice.channelBytes) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: channel size is too
small, channel size:0x%lx, required size:0x%lx",
+ (ulong) msg->cmd.createDevice.channelBytes,
+ (ulong) minSize);
+ POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_CHANNEL_SIZE_TOO_SMALL;
+ goto Away;
+ }
+ dev->chanptr =
+ uislib_ioremap_cache(dev->channelAddr,
+ msg->cmd.createDevice.channelBytes);
+ if (!dev->chanptr) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: ioremap_cache of
channelAddr:%Lx for channelBytes:%llu failed",
+ dev->channelAddr,
+ msg->cmd.createDevice.channelBytes);
+ result = CONTROLVM_RESP_ERROR_IOREMAP_FAILED;
+ POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ goto Away;
+ }
+ }
+ dev->devInstGuid = msg->cmd.createDevice.devInstGuid;
+ dev->channelBytes = msg->cmd.createDevice.channelBytes;
+
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; bus = bus->next) {
+ if (bus->busNo == busNo) {
+ /* make sure the device number is valid */
+ if (devNo >= bus->deviceCount) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: device (%d) >=
deviceCount (%d).",
+ devNo, bus->deviceCount);
+ result = CONTROLVM_RESP_ERROR_MAX_DEVICES;
+ POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
+ devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ read_unlock(&BusListLock);
+ goto Away;
+ }
+ /* make sure this device is not already set */
+ if (bus->device[devNo]) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: device %d is
already exists.",
+ devNo);
+ POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
+ devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_ALREADY_DONE;
+ read_unlock(&BusListLock);
+ goto Away;
+ }
+ read_unlock(&BusListLock);
+ /* the msg is bound for virtpci; send
+ * guest_msgs struct to callback
+ */
+ if (!msg->hdr.Flags.server) {
+ struct guest_msgs cmd;
+ if (!memcmp
+ (&dev->channelTypeGuid,
+ &UltraVhbaChannelProtocolGuid,
+ sizeof(GUID))) {
+ WAIT_FOR_VALID_GUID(((CHANNEL_HEADER
+ *) (dev->
+ chanptr))->
+ Type);
+ if (!ULTRA_VHBA_CHANNEL_OK_CLIENT
+ (dev->chanptr, NULL)) {
+ LOGERR("CONTROLVM_DEVICE_CREATE
Failed:[CLIENT]VHBA dev %d chan invalid.",
+ devNo);
+ POSTCODE_LINUX_4
+ (DEVICE_CREATE_FAILURE_PC,
+ devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_CHANNEL_INVALID;
+ goto Away;
+ }
+ cmd.msgtype = GUEST_ADD_VHBA;
+ cmd.add_vhba.chanptr = dev->chanptr;
+ cmd.add_vhba.busNo = busNo;
+ cmd.add_vhba.deviceNo = devNo;
+ cmd.add_vhba.devInstGuid =
+ dev->devInstGuid;
+ cmd.add_vhba.intr = dev->intr;
+ } else
+ if (!memcmp
+ (&dev->channelTypeGuid,
+ &UltraVnicChannelProtocolGuid,
+ sizeof(GUID))) {
+ WAIT_FOR_VALID_GUID(((CHANNEL_HEADER
+ *) (dev->
+ chanptr))->
+ Type);
+ if (!ULTRA_VNIC_CHANNEL_OK_CLIENT
+ (dev->chanptr, NULL)) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed:
VNIC[CLIENT] dev %d chan invalid.",
+ devNo);
+ POSTCODE_LINUX_4
+ (DEVICE_CREATE_FAILURE_PC,
+ devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_CHANNEL_INVALID;
+ goto Away;
+ }
+ cmd.msgtype = GUEST_ADD_VNIC;
+ cmd.add_vnic.chanptr = dev->chanptr;
+ cmd.add_vnic.busNo = busNo;
+ cmd.add_vnic.deviceNo = devNo;
+ cmd.add_vnic.devInstGuid =
+ dev->devInstGuid;
+ cmd.add_vhba.intr = dev->intr;
+ } else {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: unknown
channelTypeGuid.\n");
+ POSTCODE_LINUX_4
+ (DEVICE_CREATE_FAILURE_PC, devNo,
+ busNo, POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
+ goto Away;
+ }
+
+ if (!VirtControlChanFunc) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: virtpci
callback not registered.");
+ POSTCODE_LINUX_4
+ (DEVICE_CREATE_FAILURE_PC, devNo,
+ busNo, POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
+ goto Away;
+ }
+
+ if (!VirtControlChanFunc(&cmd)) {
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: virtpci
GUEST_ADD_[VHBA||VNIC] returned error.");
+ POSTCODE_LINUX_4
+ (DEVICE_CREATE_FAILURE_PC, devNo,
+ busNo, POSTCODE_SEVERITY_ERR);
+ result =
CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
+ goto Away;
+ }
+ }
+ bus->device[devNo] = dev;
+ POSTCODE_LINUX_4(DEVICE_CREATE_SUCCESS_PC, devNo, busNo,
+ POSTCODE_SEVERITY_INFO);
+ return CONTROLVM_RESP_SUCCESS;
+ }
+ }
+ read_unlock(&BusListLock);
+
+ LOGERR("CONTROLVM_DEVICE_CREATE Failed: failed to find bus %d.",
busNo);
+ POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ result = CONTROLVM_RESP_ERROR_BUS_INVALID;
+
+Away:
+ if (!msg->hdr.Flags.testMessage) {
+ uislib_iounmap(dev->chanptr);
+ dev->chanptr = NULL;
+ }
+
+ UISFREE(dev, sizeof(struct device_info));
+ return result;
+}
+
+static int
+pause_device(CONTROLVM_MESSAGE *msg)
+{
+ U32 busNo, devNo;
+ struct bus_info *bus;
+ struct device_info *dev;
+ struct guest_msgs cmd;
+
+ busNo = msg->cmd.deviceChangeState.busNo;
+ devNo = msg->cmd.deviceChangeState.devNo;
+
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; bus = bus->next) {
+ if (bus->busNo == busNo) {
+ /* make sure the device number is valid */
+ if (devNo >= bus->deviceCount) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed:
device(%d) >= deviceCount(%d).",
+ devNo, bus->deviceCount);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_DEVICE_INVALID;
+ }
+ /* make sure this device exists */
+ dev = bus->device[devNo];
+ if (!dev) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed:
device %d does not exist.",
+ devNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_ALREADY_DONE;
+ }
+ read_unlock(&BusListLock);
+ /* the msg is bound for virtpci; send
+ * guest_msgs struct to callback
+ */
+ if (!memcmp
+ (&dev->channelTypeGuid,
+ &UltraVhbaChannelProtocolGuid, sizeof(GUID))) {
+ cmd.msgtype = GUEST_PAUSE_VHBA;
+ cmd.pause_vhba.chanptr = dev->chanptr;
+ } else
+ if (!memcmp
+ (&dev->channelTypeGuid,
+ &UltraVnicChannelProtocolGuid,
+ sizeof(GUID))) {
+ cmd.msgtype = GUEST_PAUSE_VNIC;
+ cmd.pause_vnic.chanptr = dev->chanptr;
+ } else {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed:
unknown channelTypeGuid.\n");
+ return
+ CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
+ }
+
+ if (!VirtControlChanFunc) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: virtpci
callback not registered.");
+ return
+ CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
+ }
+
+ if (!VirtControlChanFunc(&cmd)) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed:
virtpci GUEST_PAUSE_[VHBA||VNIC] returned error.");
+ return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
+ }
+ break;
+ }
+ }
+
+ if (!bus) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: bus %d does
not exist",
+ busNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_BUS_INVALID;
+ }
+
+ return CONTROLVM_RESP_SUCCESS;
+}
+
+static int
+resume_device(CONTROLVM_MESSAGE *msg)
+{
+ U32 busNo, devNo;
+ struct bus_info *bus;
+ struct device_info *dev;
+ struct guest_msgs cmd;
+
+ busNo = msg->cmd.deviceChangeState.busNo;
+ devNo = msg->cmd.deviceChangeState.devNo;
+
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; bus = bus->next) {
+ if (bus->busNo == busNo) {
+ /* make sure the device number is valid */
+ if (devNo >= bus->deviceCount) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed:
device(%d) >= deviceCount(%d).",
+ devNo, bus->deviceCount);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_DEVICE_INVALID;
+ }
+ /* make sure this device exists */
+ dev = bus->device[devNo];
+ if (!dev) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed:
device %d does not exist.",
+ devNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_ALREADY_DONE;
+ }
+ read_unlock(&BusListLock);
+ /* the msg is bound for virtpci; send
+ * guest_msgs struct to callback
+ */
+ if (!memcmp(&dev->channelTypeGuid,
+ &UltraVhbaChannelProtocolGuid,
+ sizeof(GUID))) {
+ cmd.msgtype = GUEST_RESUME_VHBA;
+ cmd.resume_vhba.chanptr = dev->chanptr;
+ } else
+ if (!memcmp(&dev->channelTypeGuid,
+ &UltraVnicChannelProtocolGuid,
+ sizeof(GUID))) {
+ cmd.msgtype = GUEST_RESUME_VNIC;
+ cmd.resume_vnic.chanptr = dev->chanptr;
+ } else {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed:
unknown channelTypeGuid.\n");
+ return
+ CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
+ }
+
+ if (!VirtControlChanFunc) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: virtpci
callback not registered.");
+ return
+ CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
+ }
+
+ if (!VirtControlChanFunc(&cmd)) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed:
virtpci GUEST_RESUME_[VHBA||VNIC] returned error.");
+ return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
+ }
+ break;
+ }
+ }
+
+ if (!bus) {
+ LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: bus %d does
not exist",
+ busNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_BUS_INVALID;
+ }
+
+ return CONTROLVM_RESP_SUCCESS;
+}
+
+static int
+destroy_device(CONTROLVM_MESSAGE *msg, char *buf)
+{
+ U32 busNo, devNo;
+ struct bus_info *bus;
+ struct device_info *dev;
+ struct guest_msgs cmd;
+
+ busNo = msg->cmd.destroyDevice.busNo;
+ devNo = msg->cmd.destroyDevice.devNo;
+
+ read_lock(&BusListLock);
+ LOGINF("destroy_device called for busNo=%u, devNo=%u", busNo, devNo);
+ for (bus = BusListHead; bus; bus = bus->next) {
+ if (bus->busNo == busNo) {
+ /* make sure the device number is valid */
+ if (devNo >= bus->deviceCount) {
+ LOGERR("CONTROLVM_DEVICE_DESTORY Failed: device(%d) >=
deviceCount(%d).",
+ devNo, bus->deviceCount);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_DEVICE_INVALID;
+ }
+ /* make sure this device exists */
+ dev = bus->device[devNo];
+ if (!dev) {
+ LOGERR("CONTROLVM_DEVICE_DESTROY Failed: device %d does
not exist.",
+ devNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_ALREADY_DONE;
+ }
+ read_unlock(&BusListLock);
+ /* the msg is bound for virtpci; send
+ * guest_msgs struct to callback
+ */
+ if (!memcmp
+ (&dev->channelTypeGuid,
+ &UltraVhbaChannelProtocolGuid, sizeof(GUID))) {
+ cmd.msgtype = GUEST_DEL_VHBA;
+ cmd.del_vhba.chanptr = dev->chanptr;
+ } else
+ if (!memcmp
+ (&dev->channelTypeGuid,
+ &UltraVnicChannelProtocolGuid,
+ sizeof(GUID))) {
+ cmd.msgtype = GUEST_DEL_VNIC;
+ cmd.del_vnic.chanptr = dev->chanptr;
+ } else {
+ LOGERR("CONTROLVM_DEVICE_DESTROY Failed: unknown
channelTypeGuid.\n");
+ return
+ CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
+ }
+
+ if (!VirtControlChanFunc) {
+ LOGERR("CONTROLVM_DEVICE_DESTORY Failed: virtpci
callback not registered.");
+ return
+ CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
+ }
+
+ if (!VirtControlChanFunc(&cmd)) {
+ LOGERR("CONTROLVM_DEVICE_DESTROY Failed: virtpci
GUEST_DEL_[VHBA||VNIC] returned error.");
+ return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
+ }
+/* you must disable channel interrupts BEFORE you unmap the channel,
+ * because if you unmap first, there may still be some activity going
+ * on which accesses the channel and you will get a "unable to handle
+ * kernel paging request"
+ */
+ if (dev->polling) {
+ LOGINF("calling uislib_disable_channel_interrupts");
+ uislib_disable_channel_interrupts(busNo, devNo);
+ }
+ /* unmap the channel memory for the device. */
+ if (!msg->hdr.Flags.testMessage) {
+ LOGINF("destroy_device, doing iounmap");
+ uislib_iounmap(dev->chanptr);
+ }
+ UISFREE(dev, sizeof(struct device_info));
+ bus->device[devNo] = NULL;
+ break;
+ }
+ }
+
+ if (!bus) {
+ LOGERR("CONTROLVM_DEVICE_DESTROY Failed: bus %d does not exist",
+ busNo);
+ read_unlock(&BusListLock);
+ return CONTROLVM_RESP_ERROR_BUS_INVALID;
+ }
+
+ return CONTROLVM_RESP_SUCCESS;
+}
+
+void
+ULTRA_disp_channel_header(CHANNEL_HEADER *x)
+{
+ LOGINF("Sig=%llx, HdrSz=%lx, Sz=%llx, Feat=%llx, hPart=%llx,
Hndl=%llx, ChSpace=%llx, Ver=%lx, PartIdx=%lx\n",
+ x->Signature, (long unsigned int) x->HeaderSize, x->Size,
+ x->Features, x->PartitionHandle, x->Handle, x->oChannelSpace,
+ (long unsigned int) x->VersionId,
+ (long unsigned int) x->PartitionIndex);
+
+ LOGINF("ClientStr=%lx, CliStBoot=%lx, CmdStCli=%lx, CliStOS=%lx,
ChCharistics=%lx, CmdStSrv=%lx, SrvSt=%lx\n",
+ (long unsigned int) x->oClientString,
+ (long unsigned int) x->CliStateBoot,
+ (long unsigned int) x->CmdStateCli,
+ (long unsigned int) x->CliStateOS,
+ (long unsigned int) x->ChannelCharacteristics,
+ (long unsigned int) x->CmdStateSrv,
+ (long unsigned int) x->SrvState);
+
+}
+
+void
+ULTRA_disp_channel(ULTRA_IO_CHANNEL_PROTOCOL *x)
+{
+ ULTRA_disp_channel_header(&x->ChannelHeader);
+ LOGINF("cmdQ.Type=%lx\n", (long unsigned int) x->cmdQ.Type);
+ LOGINF("cmdQ.Size=%llx\n", x->cmdQ.Size);
+ LOGINF("cmdQ.oSignalBase=%llx\n", x->cmdQ.oSignalBase);
+ LOGINF("cmdQ.SignalSize=%lx\n", (long unsigned int)
x->cmdQ.SignalSize);
+ LOGINF("cmdQ.MaxSignalSlots=%lx\n",
+ (long unsigned int) x->cmdQ.MaxSignalSlots);
+ LOGINF("cmdQ.MaxSignals=%lx\n", (long unsigned int)
x->cmdQ.MaxSignals);
+ LOGINF("rspQ.Type=%lx\n", (long unsigned int) x->rspQ.Type);
+ LOGINF("rspQ.Size=%llx\n", x->rspQ.Size);
+ LOGINF("rspQ.oSignalBase=%llx\n", x->rspQ.oSignalBase);
+ LOGINF("rspQ.SignalSize=%lx\n", (long unsigned int)
x->rspQ.SignalSize);
+ LOGINF("rspQ.MaxSignalSlots=%lx\n",
+ (long unsigned int) x->rspQ.MaxSignalSlots);
+ LOGINF("rspQ.MaxSignals=%lx\n", (long unsigned int)
x->rspQ.MaxSignals);
+ LOGINF("SIZEOF_CMDRSP=%lx\n", SIZEOF_CMDRSP);
+ LOGINF("SIZEOF_PROTOCOL=%lx\n", SIZEOF_PROTOCOL);
+}
+
+void
+ULTRA_disp_vnic_channel(ULTRA_IO_CHANNEL_PROTOCOL *x)
+{
+ LOGINF("num_rcv_bufs=%lx\n", (long unsigned int) x->vnic.num_rcv_bufs);
+ LOGINF("mtu=%lx\n", (long unsigned int) x->vnic.mtu);
+}
+
+static int
+init_chipset(CONTROLVM_MESSAGE *msg, char *buf)
+{
+ POSTCODE_LINUX_2(CHIPSET_INIT_ENTRY_PC, POSTCODE_SEVERITY_INFO);
+
+ MaxBusCount = msg->cmd.initChipset.busCount;
+ PlatformNumber = msg->cmd.initChipset.platformNumber;
+ PhysicalDataChan = 0;
+
+ /* We need to make sure we have our functions registered
+ * before processing messages. If we are a test vehicle the
+ * testMessage for init_chipset will be set. We can ignore the
+ * waits for the callbacks, since this will be manually entered
+ * from a user. If no testMessage is set, we will wait for the
+ * functions.
+ */
+ if (!msg->hdr.Flags.testMessage)
+ WAIT_ON_CALLBACK(VirtControlChanFunc);
+
+ chipset_inited = 1;
+ POSTCODE_LINUX_2(CHIPSET_INIT_EXIT_PC, POSTCODE_SEVERITY_INFO);
+
+ return CONTROLVM_RESP_SUCCESS;
+}
+
+static int
+stop_chipset(CONTROLVM_MESSAGE *msg, char *buf)
+{
+ /* Check that all buses and switches have been torn down and
+ * destroyed.
+ */
+ if (BusListHead) {
+ /* Buses still exist. */
+ LOGERR("CONTROLVM_CHIPSET_STOP: BusListHead is not NULL");
+ return CONTROLVM_RESP_ERROR_CHIPSET_STOP_FAILED_BUS;
+ }
+ if (BusListCount) {
+ /* BusListHead is NULL, but BusListCount != 0 */
+ LOGERR("CONTROLVM_CHIPSET_STOP: BusListCount != 0");
+ return CONTROLVM_RESP_ERROR_CHIPSET_STOP_FAILED_BUS;
+ }
+
+ /* Buses are shut down. */
+ return visorchipset_chipset_notready();
+}
+
+static int
+delete_bus_glue(U32 busNo)
+{
+ CONTROLVM_MESSAGE msg;
+
+ init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, 0);
+ msg.cmd.destroyBus.busNo = busNo;
+ if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("destroy_bus failed. busNo=0x%x\n", busNo);
+ return 0;
+ }
+ return 1;
+}
+
+static int
+delete_device_glue(U32 busNo, U32 devNo)
+{
+ CONTROLVM_MESSAGE msg;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_DESTROY, 0, 0);
+ msg.cmd.destroyDevice.busNo = busNo;
+ msg.cmd.destroyDevice.devNo = devNo;
+ if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("destroy_device failed. busNo=0x%x devNo=0x%x\n", busNo,
+ devNo);
+ return 0;
+ }
+ return 1;
+}
+
+int
+uislib_client_inject_add_bus(U32 busNo, GUID instGuid,
+ U64 channelAddr, ulong nChannelBytes)
+{
+ CONTROLVM_MESSAGE msg;
+
+ LOGINF("enter busNo=0x%x\n", busNo);
+ /* step 0: init the chipset */
+ POSTCODE_LINUX_3(CHIPSET_INIT_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO);
+
+ if (!chipset_inited) {
+ /* step: initialize the chipset */
+ init_msg_header(&msg, CONTROLVM_CHIPSET_INIT, 0, 0);
+ /* this change is needed so that console will come up
+ * OK even when the bus 0 create comes in late. If the
+ * bus 0 create is the first create, then the add_vnic
+ * will work fine, but if the bus 0 create arrives
+ * after number 4, then the add_vnic will fail, and the
+ * ultraboot will fail.
+ */
+ msg.cmd.initChipset.busCount = 23;
+ msg.cmd.initChipset.switchCount = 0;
+ if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("init_chipset failed.\n");
+ return 0;
+ }
+ LOGINF("chipset initialized\n");
+ POSTCODE_LINUX_3(CHIPSET_INIT_EXIT_PC, busNo,
+ POSTCODE_SEVERITY_INFO);
+ }
+
+ /* step 1: create a bus */
+ POSTCODE_LINUX_3(BUS_CREATE_ENTRY_PC, busNo,
POSTCODE_SEVERITY_WARNING);
+ init_msg_header(&msg, CONTROLVM_BUS_CREATE, 0, 0);
+ msg.cmd.createBus.busNo = busNo;
+ msg.cmd.createBus.deviceCount = 23; /* devNo+1; */
+ msg.cmd.createBus.channelAddr = channelAddr;
+ msg.cmd.createBus.channelBytes = nChannelBytes;
+ if (create_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("create_bus failed.\n");
+ POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo,
+ POSTCODE_SEVERITY_ERR);
+ return 0;
+ }
+ POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO);
+
+ return 1;
+}
+EXPORT_SYMBOL(uislib_client_inject_add_bus);
+
+
+int
+uislib_client_inject_del_bus(U32 busNo)
+{
+ return delete_bus_glue(busNo);
+}
+EXPORT_SYMBOL(uislib_client_inject_del_bus);
+
+int
+uislib_client_inject_pause_vhba(U32 busNo, U32 devNo)
+{
+ CONTROLVM_MESSAGE msg;
+ int rc;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0);
+ msg.cmd.deviceChangeState.busNo = busNo;
+ msg.cmd.deviceChangeState.devNo = devNo;
+ msg.cmd.deviceChangeState.state = SegmentStateStandby;
+ rc = pause_device(&msg);
+ if (rc != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("VHBA pause_device failed. busNo=0x%x devNo=0x%x\n",
+ busNo, devNo);
+ return rc;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(uislib_client_inject_pause_vhba);
+
+int
+uislib_client_inject_resume_vhba(U32 busNo, U32 devNo)
+{
+ CONTROLVM_MESSAGE msg;
+ int rc;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0);
+ msg.cmd.deviceChangeState.busNo = busNo;
+ msg.cmd.deviceChangeState.devNo = devNo;
+ msg.cmd.deviceChangeState.state = SegmentStateRunning;
+ rc = resume_device(&msg);
+ if (rc != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("VHBA resume_device failed. busNo=0x%x devNo=0x%x\n",
+ busNo, devNo);
+ return rc;
+ }
+ return 0;
+
+}
+EXPORT_SYMBOL(uislib_client_inject_resume_vhba);
+
+int
+uislib_client_inject_add_vhba(U32 busNo, U32 devNo,
+ U64 phys_chan_addr, U32 chan_bytes,
+ int is_test_addr, GUID instGuid,
+ struct InterruptInfo *intr)
+{
+ CONTROLVM_MESSAGE msg;
+
+ LOGINF(" enter busNo=0x%x devNo=0x%x\n", busNo, devNo);
+ /* chipset init'ed with bus bus has been previously created -
+ * Verify it still exists step 2: create the VHBA device on the
+ * bus
+ */
+ POSTCODE_LINUX_4(VHBA_CREATE_ENTRY_PC, devNo, busNo,
+ POSTCODE_SEVERITY_INFO);
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CREATE, 0, 0);
+ if (is_test_addr)
+ /* signify that the physical channel address does NOT
+ * need to be ioremap()ed
+ */
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.createDevice.busNo = busNo;
+ msg.cmd.createDevice.devNo = devNo;
+ msg.cmd.createDevice.devInstGuid = instGuid;
+ if (intr)
+ msg.cmd.createDevice.intr = *intr;
+ else
+ memset(&msg.cmd.createDevice.intr, 0,
+ sizeof(struct InterruptInfo));
+ msg.cmd.createDevice.channelAddr = phys_chan_addr;
+ if (chan_bytes < MIN_IO_CHANNEL_SIZE) {
+ LOGERR("wrong channel size.chan_bytes = 0x%x IO_CHANNEL_SIZE=
0x%x\n",
+ chan_bytes, (unsigned int) MIN_IO_CHANNEL_SIZE);
+ POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, chan_bytes,
+ MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR);
+ return 0;
+ }
+ msg.cmd.createDevice.channelBytes = chan_bytes;
+ msg.cmd.createDevice.dataTypeGuid = UltraVhbaChannelProtocolGuid;
+ if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("VHBA create_device failed.\n");
+ POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ return 0;
+ }
+ POSTCODE_LINUX_4(VHBA_CREATE_SUCCESS_PC, devNo, busNo,
+ POSTCODE_SEVERITY_INFO);
+ return 1;
+}
+EXPORT_SYMBOL(uislib_client_inject_add_vhba);
+
+int
+uislib_client_inject_del_vhba(U32 busNo, U32 devNo)
+{
+ return delete_device_glue(busNo, devNo);
+}
+EXPORT_SYMBOL(uislib_client_inject_del_vhba);
+
+int
+uislib_client_inject_add_vnic(U32 busNo, U32 devNo,
+ U64 phys_chan_addr, U32 chan_bytes,
+ int is_test_addr, GUID instGuid,
+ struct InterruptInfo *intr)
+{
+ CONTROLVM_MESSAGE msg;
+
+ LOGINF(" enter busNo=0x%x devNo=0x%x\n", busNo, devNo);
+ /* chipset init'ed with bus bus has been previously created -
+ * Verify it still exists step 2: create the VNIC device on the
+ * bus
+ */
+ POSTCODE_LINUX_4(VNIC_CREATE_ENTRY_PC, devNo, busNo,
+ POSTCODE_SEVERITY_INFO);
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CREATE, 0, 0);
+ if (is_test_addr)
+ /* signify that the physical channel address does NOT
+ * need to be ioremap()ed
+ */
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.createDevice.busNo = busNo;
+ msg.cmd.createDevice.devNo = devNo;
+ msg.cmd.createDevice.devInstGuid = instGuid;
+ if (intr)
+ msg.cmd.createDevice.intr = *intr;
+ else
+ memset(&msg.cmd.createDevice.intr, 0,
+ sizeof(struct InterruptInfo));
+ msg.cmd.createDevice.channelAddr = phys_chan_addr;
+ if (chan_bytes < MIN_IO_CHANNEL_SIZE) {
+ LOGERR("wrong channel size.chan_bytes = 0x%x IO_CHANNEL_SIZE=
0x%x\n",
+ chan_bytes, (unsigned int) MIN_IO_CHANNEL_SIZE);
+ POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, chan_bytes,
+ MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR);
+ return 0;
+ }
+ msg.cmd.createDevice.channelBytes = chan_bytes;
+ msg.cmd.createDevice.dataTypeGuid = UltraVnicChannelProtocolGuid;
+ if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("VNIC create_device failed.\n");
+ POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, devNo, busNo,
+ POSTCODE_SEVERITY_ERR);
+ return 0;
+ }
+
+ POSTCODE_LINUX_4(VNIC_CREATE_SUCCESS_PC, devNo, busNo,
+ POSTCODE_SEVERITY_INFO);
+ return 1;
+}
+EXPORT_SYMBOL(uislib_client_inject_add_vnic);
+
+int
+uislib_client_inject_pause_vnic(U32 busNo, U32 devNo)
+{
+ CONTROLVM_MESSAGE msg;
+ int rc;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0);
+ msg.cmd.deviceChangeState.busNo = busNo;
+ msg.cmd.deviceChangeState.devNo = devNo;
+ msg.cmd.deviceChangeState.state = SegmentStateStandby;
+ rc = pause_device(&msg);
+ if (rc != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("VNIC pause_device failed. busNo=0x%x devNo=0x%x\n",
+ busNo, devNo);
+ return -1;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(uislib_client_inject_pause_vnic);
+
+int
+uislib_client_inject_resume_vnic(U32 busNo, U32 devNo)
+{
+ CONTROLVM_MESSAGE msg;
+ int rc;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0);
+ msg.cmd.deviceChangeState.busNo = busNo;
+ msg.cmd.deviceChangeState.devNo = devNo;
+ msg.cmd.deviceChangeState.state = SegmentStateRunning;
+ rc = resume_device(&msg);
+ if (rc != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("VNIC resume_device failed. busNo=0x%x devNo=0x%x\n",
+ busNo, devNo);
+ return -1;
+ }
+ return 0;
+
+}
+EXPORT_SYMBOL(uislib_client_inject_resume_vnic);
+
+int
+uislib_client_inject_del_vnic(U32 busNo, U32 devNo)
+{
+ return delete_device_glue(busNo, devNo);
+}
+EXPORT_SYMBOL(uislib_client_inject_del_vnic);
+
+int
+uislib_client_add_vnic(U32 busNo)
+{
+ BOOL busCreated = FALSE;
+ int devNo = 0; /* Default to 0, since only one device
+ * will be created for this bus... */
+ GUID dummyGuid = GUID0;
+ CONTROLVM_MESSAGE msg;
+
+ init_msg_header(&msg, CONTROLVM_BUS_CREATE, 0, 0);
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.createBus.busNo = busNo;
+ msg.cmd.createBus.deviceCount = 4;
+ msg.cmd.createBus.channelAddr = 0;
+ msg.cmd.createBus.channelBytes = 0;
+ if (create_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("client create_bus failed");
+ return 0;
+ }
+ busCreated = TRUE;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_CREATE, 0, 0);
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.createDevice.busNo = busNo;
+ msg.cmd.createDevice.devNo = devNo;
+ msg.cmd.createDevice.devInstGuid = dummyGuid;
+ memset(&msg.cmd.createDevice.intr, 0, sizeof(struct InterruptInfo));
+ msg.cmd.createDevice.channelAddr = PhysicalDataChan;
+ msg.cmd.createDevice.channelBytes = MIN_IO_CHANNEL_SIZE;
+ msg.cmd.createDevice.dataTypeGuid = UltraVnicChannelProtocolGuid;
+ if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("client create_device failed");
+ goto AwayCleanup;
+ }
+
+ return 1;
+
+AwayCleanup:
+ if (busCreated) {
+ init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, 0);
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.destroyBus.busNo = busNo;
+ if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
+ LOGERR("client destroy_bus failed.\n");
+ }
+
+ return 0;
+} /* end uislib_client_add_vnic */
+EXPORT_SYMBOL(uislib_client_add_vnic);
+
+int
+uislib_client_delete_vnic(U32 busNo)
+{
+ int devNo = 0; /* Default to 0, since only one device
+ * will be created for this bus... */
+ CONTROLVM_MESSAGE msg;
+
+ init_msg_header(&msg, CONTROLVM_DEVICE_DESTROY, 0, 0);
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.destroyDevice.busNo = busNo;
+ msg.cmd.destroyDevice.devNo = devNo;
+ if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ /* Don't error exit - try to see if bus can be destroyed... */
+ LOGERR("client destroy_device failed.\n");
+ }
+
+ init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, 0);
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.destroyBus.busNo = busNo;
+ if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
+ LOGERR("client destroy_bus failed.\n");
+
+ return 1;
+}
+EXPORT_SYMBOL(uislib_client_delete_vnic);
+
+ /* end client_delete_vnic */
+
+static atomic_t Malloc_BytesInUse = ATOMIC_INIT(0);
+static atomic_t Malloc_BuffersInUse = ATOMIC_INIT(0);
+static atomic_t Malloc_FailuresAlloc = ATOMIC_INIT(0);
+static atomic_t Malloc_FailuresFree = ATOMIC_INIT(0);
+static atomic_t Malloc_TotalMallocs = ATOMIC_INIT(0);
+static atomic_t Malloc_TotalFrees = ATOMIC_INIT(0);
+
+void *
+uislib_malloc(size_t siz, gfp_t gfp, U8 contiguous, char *fn, int ln)
+{
+ void *p = NULL;
+
+ if (contiguous == 0) {
+ /* Allocate non-contiguous memory, such as in the
+ * add_vnic and add_vhba methods where we are rebooting
+ * the guest, for example. Otherwise the contiguous
+ * memory allocation attempt results in an
+ * out-of-memory crash in the IOVM...
+ */
+ p = vmalloc(siz);
+ } else {
+ /* __GFP_NORETRY means "ok to fail", meaning kmalloc()
+ * can return NULL. If you do NOT specify
+ * __GFP_NORETRY, Linux will go to extreme measures to
+ * get memory for you (like, invoke oom killer), which
+ * will probably cripple the system.
+ */
+ p = kmalloc(siz, gfp | __GFP_NORETRY);
+ }
+ if (p == NULL) {
+ LOGERR("uislib_malloc failed to alloc %d bytes @%s:%d",
+ (int) siz, fn, ln);
+ atomic_inc(&Malloc_FailuresAlloc);
+ return NULL;
+ }
+ atomic_add((int) (siz), &Malloc_BytesInUse);
+ atomic_inc(&Malloc_BuffersInUse);
+ atomic_inc(&Malloc_TotalMallocs); /* will eventually overflow */
+ return p;
+}
+EXPORT_SYMBOL(uislib_malloc);
+
+void
+uislib_free(void *p, size_t siz, U8 contiguous, char *fn, int ln)
+{
+ if (p == NULL) {
+ LOGERR("uislib_free NULL pointer @%s:%d", fn, ln);
+ atomic_inc(&Malloc_FailuresFree);
+ return;
+ }
+
+ if (contiguous == 0)
+ vfree(p);
+ else
+ kfree(p);
+ atomic_sub((int) (siz), &Malloc_BytesInUse);
+ atomic_dec(&Malloc_BuffersInUse);
+ atomic_inc(&Malloc_TotalFrees); /* will eventually overflow */
+}
+EXPORT_SYMBOL(uislib_free);
+
+void *
+uislib_cache_alloc(struct kmem_cache *cur_pool, char *fn, int ln)
+{
+ /* __GFP_NORETRY means "ok to fail", meaning kmalloc() can
+ * return NULL. If you do NOT specify __GFP_NORETRY, Linux
+ * will go to extreme measures to get memory for you (like,
+ * invoke oom killer), which will probably cripple the system.
+ */
+ void *p = kmem_cache_alloc(cur_pool, GFP_ATOMIC | __GFP_NORETRY);
+ if (p == NULL) {
+ LOGERR("uislib_malloc failed to alloc uiscmdrsp @%s:%d",
+ fn, ln);
+ return NULL;
+ }
+ return p;
+}
+EXPORT_SYMBOL(uislib_cache_alloc);
+
+void
+uislib_cache_free(struct kmem_cache *cur_pool, void *p, char *fn, int ln)
+{
+ if (p == NULL) {
+ LOGERR("uislib_free NULL pointer @%s:%d", fn, ln);
+ return;
+ }
+ kmem_cache_free(cur_pool, p);
+}
+EXPORT_SYMBOL(uislib_cache_free);
+
+/*****************************************************/
+/* proc filesystem callback functions */
+/*****************************************************/
+
+static ssize_t
+vnic_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int action = 0xffff, busNo = 0, i, result = 0;
+ char buf[count];
+ char direction;
+/* GUID guid; */
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("echo > /proc/uislib/vnic copy_from_user ****FAILED.\n");
+ return -EFAULT;
+ }
+
+ i = sscanf(buf, "%d%c", &action, &direction);
+ if (i != 2) {
+ LOGERR("unable to parse vnic proc parameters.\n");
+ return -EFAULT;
+ }
+
+ if ((direction != '-') && (direction != '+')) {
+ LOGERR("unable to determine whether to add or delete vnic\n");
+ return -EFAULT;
+ }
+
+ /* if (i < 1), i.e., if we didn't even read the action field,
+ * then action will default to 0xffff and the code below will
+ * fall through the switch and print usage.
+ */
+ switch (action) {
+ case 0:
+ /* call client method... */
+ busNo = 0; /* All client drivers use bus value of 0... */
+ if (direction == '+')
+ result = uislib_client_add_vnic(busNo);
+ else
+ result = uislib_client_delete_vnic(busNo);
+ if (!result) {
+ LOGERR("echo 0%c > /proc/uislib/vnic failed (client end)",
+ direction);
+ return -EFAULT;
+ }
+ return count;
+
+ default:
+ break;
+ }
+
+ LOGERR("USAGE: echo <action><direction (up/down)> >
/proc/uislib/vnic");
+ LOGERR(" ");
+ LOGERR("Client Syntax");
+ LOGERR("-------------");
+ LOGERR("0+ ==> add vnic");
+ LOGERR("0- ==> delete vnic");
+ LOGERR(" ");
+ return count;
+} /* end vnic_proc_write */
+
+static ssize_t
+chipset_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int i, action = 0xffff;
+ char buf[count];
+ CONTROLVM_MESSAGE msg;
+
+ memset(&msg, 0, sizeof(CONTROLVM_MESSAGE));
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("copy_from_user ****FAILED.\n");
+ return -EFAULT;
+ }
+
+ if (chipset_inited) {
+ LOGINF("Chipset already initialized\n");
+ return -EFAULT;
+ }
+ i = sscanf(buf, "%x", &action);
+
+ /* if (i < 1), i.e., if we didn't even read the action field,
+ * then action will default to 0xffff and the code below will
+ * fall through the switch and print usage.
+ */
+ switch (action) {
+ case 1:
+ /* GUEST */
+ /* step: initialize the chipset */
+ init_msg_header(&msg, CONTROLVM_CHIPSET_INIT, 0, 0);
+ msg.hdr.Flags.testMessage = 0;
+ msg.cmd.initChipset.busCount = 23;
+ msg.cmd.initChipset.switchCount = 23;
+
+ if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("init_chipset failed.\n");
+ return 0;
+ }
+ return 1;
+ case 2:
+ /* BOTH */
+ init_msg_header(&msg, CONTROLVM_CHIPSET_INIT, 0, 0);
+ msg.hdr.Flags.testMessage = 1;
+ msg.cmd.initChipset.busCount = 23;
+ msg.cmd.initChipset.switchCount = 23;
+
+ if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("init_chipset failed.\n");
+ return 0;
+ }
+ return 1;
+
+ default:
+ break;
+ }
+
+ LOGERR("usage: 1 ==> init_chipset client\n");
+ LOGERR("usage: 2 ==> init_chipset test\n");
+ return -EFAULT;
+}
+
+#define PROCLINE(...) \
+ do { \
+ if (util_add_proc_line_ex(&tot, buff, \
+ buff_len, __VA_ARGS__) < 0) { \
+ goto err_done; \
+ } \
+ } while (0)
+
+static int
+info_proc_read_helper(char **buff, int *buff_len)
+{
+ int i, tot = 0;
+ struct bus_info *bus;
+
+ PROCLINE("\nBuses:\n");
+
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; bus = bus->next) {
+
+ PROCLINE(" bus=0x%p, busNo=%d, deviceCount=%d\n",
+ bus, bus->busNo, bus->deviceCount);
+
+ PROCLINE(" Devices:\n");
+
+ for (i = 0; i < bus->deviceCount; i++) {
+ if (bus->device[i]) {
+ PROCLINE(" busNo %d, device[%i]: 0x%p,
chanptr=0x%p, swtch=0x%p\n",
+ bus->busNo, i, bus->device[i],
+ bus->device[i]->chanptr,
+ bus->device[i]->swtch);
+ PROCLINE(" first_busy_cnt=%llu,
moved_to_tail_cnt=%llu, last_on_list_cnt=%llu\n",
+ bus->device[i]->first_busy_cnt,
+ bus->device[i]->moved_to_tail_cnt,
+ bus->device[i]->last_on_list_cnt);
+ }
+ }
+ }
+ read_unlock(&BusListLock);
+
+ PROCLINE("Malloc bytes in use: %d\n", atomic_read(&Malloc_BytesInUse));
+ PROCLINE("Malloc buffers in use: %d\n",
+ atomic_read(&Malloc_BuffersInUse));
+ PROCLINE("Malloc allocation failures: %d\n",
+ atomic_read(&Malloc_FailuresAlloc));
+ PROCLINE("Malloc free failures: %d\n",
+ atomic_read(&Malloc_FailuresFree));
+ PROCLINE("Malloc total mallocs: %u (may overflow)\n",
+ (unsigned) atomic_read(&Malloc_TotalMallocs));
+ PROCLINE("Malloc total frees: %u (may overflow)\n",
+ (unsigned) atomic_read(&Malloc_TotalFrees));
+ PROCLINE("UisUtils_Registered_Services: %d\n",
+ atomic_read(&UisUtils_Registered_Services));
+
+ PROCLINE("cycles_before_wait %llu wait_cycles:%llu\n",
+ cycles_before_wait, wait_cycles);
+ PROCLINE("tot_wakeup_cnt %llu:tot_wait_cnt %llu:tot_schedule_cnt
%llu\n",
+ tot_wakeup_cnt, tot_wait_cnt, tot_schedule_cnt);
+ PROCLINE("en_smart_wakeup %d\n", en_smart_wakeup);
+ PROCLINE("tot_moved_to_tail_cnt %llu\n", tot_moved_to_tail_cnt);
+
+ return tot;
+err_done:
+
+ return -1;
+}
+
+static ssize_t
+info_proc_read(struct file *file, char __user *buf, size_t len, loff_t
*offset)
+{
+ char *temp;
+ int totalBytes = 0;
+ int remaining_bytes = PROC_READ_BUFFER_SIZE;
+
+/* *start = buf; */
+ if (ProcReadBuffer == NULL) {
+ DBGINF("ProcReadBuffer == NULL; allocating buffer.\n.");
+ ProcReadBuffer = UISVMALLOC(PROC_READ_BUFFER_SIZE);
+
+ if (ProcReadBuffer == NULL) {
+ LOGERR("failed to allocate buffer to provide proc data.\n");
+ return -ENOMEM;
+ }
+ }
+
+ temp = ProcReadBuffer;
+
+ if ((*offset == 0) || (!ProcReadBufferValid)) {
+ DBGINF("calling info_proc_read_helper.\n");
+ /* if the read fails, then -1 will be returned */
+ totalBytes = info_proc_read_helper(&temp, &remaining_bytes);
+ ProcReadBufferValid = 1;
+ } else
+ totalBytes = strlen(ProcReadBuffer);
+
+ return simple_read_from_buffer(buf, len, offset,
+ ProcReadBuffer, totalBytes);
+}
+
+static ssize_t
+platformnumber_proc_read(struct file *file, char __user *buf,
+ size_t len, loff_t *offset)
+{
+ int length = 0;
+ char *vbuf;
+ loff_t pos = *offset;
+
+ if (pos < 0)
+ return -EINVAL;
+
+ if (pos > 0 || !len)
+ return 0;
+
+ vbuf = kzalloc(len, GFP_KERNEL);
+ if (!vbuf)
+ return -ENOMEM;
+
+ length = sprintf(vbuf, "%d\n", PlatformNumber);
+
+ if (copy_to_user(buf, vbuf, length)) {
+ kfree(vbuf);
+ return -EFAULT;
+ }
+
+ kfree(vbuf);
+ *offset += length;
+ return length;
+}
+
+#ifdef UISLIB_TEST_PROC
+
+/* proc/uislib/vbus/<x>/info */
+static int
+proc_info_vbus_show(struct seq_file *m, void *v)
+{
+ struct bus_info *bus = m->private;
+ int i, devInfoCount, x;
+ char buf[999];
+
+ if (bus == NULL)
+ return 0;
+ seq_printf(m, "Client device / client driver info for %s partition
(vbus #%d):\n",
+ bus->partitionName, bus->busNo);
+ if ((bus->busChannelBytes == 0) || (bus->pBusChannel == NULL))
+ return 0;
+ devInfoCount =
+ (bus->busChannelBytes -
+ sizeof(ULTRA_VBUS_CHANNEL_PROTOCOL)) /
+ sizeof(ULTRA_VBUS_DEVICEINFO);
+ x = VBUSCHANNEL_devInfoToStringBuffer(bus->pBusChannel->ChpInfo, buf,
+ sizeof(buf) - 1, -1);
+ buf[x] = '\0';
+ seq_printf(m, "%s", buf);
+ x = VBUSCHANNEL_devInfoToStringBuffer(bus->pBusChannel->BusInfo,
+ buf, sizeof(buf) - 1, -1);
+ buf[x] = '\0';
+ seq_printf(m, "%s", buf);
+ for (i = 0; i < devInfoCount; i++) {
+ x = VBUSCHANNEL_devInfoToStringBuffer(bus->pBusChannel->
+ DevInfo[i], buf,
+ sizeof(buf) - 1, i);
+ if (x > 0) {
+ buf[x] = '\0';
+ seq_printf(m, "%s", buf);
+ }
+ }
+ return 0;
+}
+
+static ssize_t
+bus_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int server_flag = 0;
+ int i, action = 0xffff, result;
+ char buf[count];
+ CONTROLVM_MESSAGE msg;
+ U32 busNo, deviceCount;
+
+ memset(&msg, 0, sizeof(CONTROLVM_MESSAGE));
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("echo > /proc/uislib/bus: copy_from_user ****FAILED.");
+ return -EFAULT;
+ }
+
+ i = sscanf(buf, "%x-%d-%d", &action, &busNo, &deviceCount);
+
+ /* if (i < 1), i.e., if we didn't even read the action field,
+ * then action will default to 0xffff and the code below will
+ * fall through the switch and print usage.
+ */
+ switch (action) {
+ case 0:
+ /* destroy a bus */
+ if (i != 2)
+ break;
+ init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, server_flag);
+ msg.cmd.destroyBus.busNo = busNo;
+
+ result = destroy_bus(&msg, NULL);
+
+ if (result != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("echo 0-%d > /proc/uislib/bus {CONTROLVM_BUS_DESTROY
Failed} Result(%d)",
+ busNo, result);
+ return -EFAULT;
+ }
+ return count;
+ case 1:
+ /* create a bus */
+ if (i != 3)
+ break;
+ init_msg_header(&msg, CONTROLVM_BUS_CREATE, 0, server_flag);
+ msg.cmd.createBus.busNo = busNo;
+ msg.cmd.createBus.deviceCount = deviceCount;
+
+ result = create_bus(&msg, NULL);
+
+ if (result != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("echo 1-%d-%d > /proc/uislib/bus
{CONTROLVM_BUS_CREATE Failed} Result(%d)",
+ busNo, deviceCount, result);
+ return -EFAULT;
+ }
+
+ return count;
+ default:
+ break;
+ }
+
+ LOGERR("USAGE: echo <action>-<busNo>... > /proc/uislib/bus");
+ LOGERR(" ");
+ LOGERR("Destruct Syntax ControlVM Message Id");
+ LOGERR("--------------- ---------------------");
+ LOGERR("0-<busNo> ==> CONTROLVM_BUS_DESTROY");
+ LOGERR(" ");
+ LOGERR("Construct Syntax ControlVM Message Id");
+ LOGERR("----------------------- -------------------- ");
+ LOGERR("1-<busNo>-<deviceCount> ==> CONTROLVM_BUS_CREATE");
+
+ return -EFAULT;
+}
+
+static ssize_t
+uislib_proc_read_writeonly(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ return 0;
+}
+
+static ssize_t
+dev_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int server_flag = 0;
+ CONTROLVM_MESSAGE msg;
+ U32 busNo, devNo;
+ char buf[count];
+ unsigned int chanptr;
+ int type, i, action = 0xffff, result;
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("echo > /proc/uislib/device: copy_from_user ****FAILED.");
+ return -EFAULT;
+ }
+
+ i = sscanf(buf, "%x-%d-%d-%x-%d",
+ &action, &busNo, &devNo, &chanptr, &type);
+
+ switch (action) {
+ case 0:
+ if (i != 3)
+ break;
+
+ /* destroy a device */
+ init_msg_header(&msg, CONTROLVM_DEVICE_DESTROY, 0, server_flag);
+ msg.cmd.destroyDevice.busNo = busNo;
+ msg.cmd.destroyDevice.devNo = devNo;
+
+ result = destroy_device(&msg, NULL);
+
+ if (result != CONTROLVM_RESP_SUCCESS) {
+ LOGERR("echo 0-%d-%d > /proc/uislib/device
{CONTROLVM_DEVICE_DESTROY Failed} Result(%d)",
+ busNo, devNo, result);
+ return -EFAULT;
+ }
+
+ return count;
+
+ case 1:
+ if (i != 5)
+ break;
+
+ /* create a device */
+ init_msg_header(&msg, CONTROLVM_DEVICE_CREATE, 0, server_flag);
+ msg.cmd.createDevice.busNo = busNo;
+ msg.cmd.createDevice.devNo = devNo;
+ msg.cmd.createDevice.channelAddr = __pa(chanptr);
+ msg.cmd.createDevice.channelBytes = MIN_IO_CHANNEL_SIZE;
+
+ if (type == 0)
+ msg.cmd.createDevice.dataTypeGuid =
+ UltraVhbaChannelProtocolGuid;
+ else if (type == 1)
+ msg.cmd.createDevice.dataTypeGuid =
+ UltraVnicChannelProtocolGuid;
+ else {
+ LOGERR("echo 1-%d-%d-%x-<type> > /proc/uislib/devce failed:
invalid device type %d.",
+ busNo, devNo, chanptr, type);
+ return -EFAULT;
+ }
+
+ result = create_device(&msg, NULL);
+
+ if (result != CONTROLVM_RESP_SUCCESS) {
+ if (type == 0)
+ LOGERR("echo 1-%d-%d-%x-0 > /proc/uislib/device
{CONTROLVM_DEVICE_CREATE[vHBA] Failed} Result(%d)",
+ busNo, devNo, chanptr, result);
+ else
+ LOGERR("echo 1-%d-%d-%x-1 > /proc/uislib/device
{CONTROLVM_DEVICE_CREATE[vNIC] Failed} Result(%d)",
+ busNo, devNo, chanptr, result);
+ return -EFAULT;
+ }
+
+ default:
+ break;
+ }
+
+ LOGERR("USAGE: echo <action>-<busNo>-<devNo>... >
/proc/uislib/device");
+ LOGERR(" ");
+ LOGERR("Destruct Syntax ControlVM Message Id");
+ LOGERR("----------------- ------------------------");
+ LOGERR("0-<busNo>-<devNo> ==> CONTROLVM_DEVICE_DESTROY");
+ LOGERR(" ");
+ LOGERR("Construct Syntax ControlVM Message Id");
+ LOGERR
+ ("---------------------------------- ----------------------- ");
+ LOGERR
+ ("1-<busNo>-<devNo>-<chanptr>-<type> ==> CONTROLVM_DEVICE_CREATE");
+ LOGERR(" <type = 0>: vHBA");
+ LOGERR(" <type = 1>: vNIC");
+ LOGERR(" ");
+
+ return -EFAULT;
+}
+
+static ssize_t
+cycles_before_wait_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ char buf[count];
+
+#define CYCLES_BEFORE_WAIT_USE_ERROR { \
+ LOGERR("Incorrect Call Home Input.\n"); \
+ pr_info("Please pass Call Home Event Parameters in the form:\n"); \
+ pr_info("EventID Category
Type[parameter1][parameter2][parameter3][parameter4][parameter5][parameter6]\n");
\
+ return -EFAULT; \
+}
+
+ if (count == 0)
+ CYCLES_BEFORE_WAIT_USE_ERROR;
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("copy_from_user failed.\n");
+ return -EFAULT;
+ }
+ buf[count - 1] = '\0'; /* Replace the LF at the end of the
+ * input with a NULL */
+ /* Pull out the cycles_before_wait must be decimal integer */
+ if (sscanf(buf, "%lld", &cycles_before_wait) != 1)
+ CYCLES_BEFORE_WAIT_USE_ERROR;
+
+ return count;
+}
+
+static ssize_t
+reset_counts_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ char buf[count];
+ unsigned long long new_value;
+ struct bus_info *bus;
+ int i;
+
+#define RESET_COUNTS_USE_ERROR { \
+ LOGERR("Incorrect reset_counts Input.\n"); \
+ pr_info("Please pass the new value for the counters:\n"); \
+ pr_info("e.g. echo 0 > reset_counts\n"); \
+ return -EFAULT; \
+ }
+
+ if (count == 0)
+ RESET_COUNTS_USE_ERROR;
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("copy_from_user failed.\n");
+ return -EFAULT;
+ }
+ buf[count - 1] = '\0'; /* Replace the LF at the end of the
+ * input with a NULL */
+ /* Pull out the reset_counts must be decimal integer */
+ if (sscanf(buf, "%llu", &new_value) != 1)
+ RESET_COUNTS_USE_ERROR;
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; bus = bus->next) {
+
+ for (i = 0; i < bus->deviceCount; i++) {
+ if (bus->device[i]) {
+ bus->device[i]->first_busy_cnt = new_value;
+ bus->device[i]->moved_to_tail_cnt = new_value;
+ bus->device[i]->last_on_list_cnt = new_value;
+ }
+ }
+ }
+ read_unlock(&BusListLock);
+ tot_moved_to_tail_cnt = new_value;
+ tot_wait_cnt = new_value;
+ tot_wakeup_cnt = new_value;
+ tot_schedule_cnt = new_value;
+ return count;
+}
+
+static ssize_t
+smart_wakeup_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ char buf[count];
+ int new_value;
+
+#define SMART_WAKEUP_USE_ERROR { \
+ LOGERR("Incorrect smart_wakeup Input 0 disables smart_wakeup, and 1
enables smart_wakeup.\n"); \
+ pr_info("echo 0 > smart_wakeup\n"); \
+ pr_info("echo 1 > smart_wakeup\n"); \
+ return -EFAULT; \
+ }
+
+ if (count == 0)
+ SMART_WAKEUP_USE_ERROR;
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("copy_from_user failed.\n");
+ return -EFAULT;
+ }
+ buf[count - 1] = '\0'; /* Replace the LF at the end of the
+ * input with a NULL */
+ /* Pull out the smart_wakeup must be decimal integer */
+ if (sscanf(buf, "%d", &new_value) != 1)
+ SMART_WAKEUP_USE_ERROR;
+ en_smart_wakeup = new_value;
+ return count;
+}
+
+static ssize_t
+test_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int i, action = 0xffff;
+ char buf[count];
+ CONTROLVM_MESSAGE msg;
+ S64 vrtc_offset;
+
+ memset(&msg, 0, sizeof(CONTROLVM_MESSAGE));
+
+ if (copy_from_user(buf, buffer, count)) {
+ LOGERR("copy_from_user ****FAILED.\n");
+ return -EFAULT;
+ }
+
+ i = sscanf(buf, "%x", &action);
+
+ /* if (i < 1), i.e., if we didn't even read the action field,
+ * then action will default to 0xffff and the code below will
+ * fall through the switch and print usage. */
+ switch (action) {
+ case 6:
+ msg.hdr.Id = CONTROLVM_CHIPSET_STOP;
+ msg.hdr.Flags.responseExpected = 1;
+ stop_chipset(&msg, NULL);
+ break;
+ case 7:
+ vrtc_offset = 0;
+ LOGERR("about to issue QUERY vrtc_offset=%LX", vrtc_offset);
+ vrtc_offset = Issue_VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET();
+ LOGERR("result is vrtc_offset=%LX", vrtc_offset);
+ break;
+ case 8:
+ vrtc_offset = 60;
+ LOGERR("about to increase physical time by 0x%LX seconds",
+ vrtc_offset);
+ vrtc_offset = Issue_VMCALL_UPDATE_PHYSICAL_TIME(vrtc_offset);
+ break;
+ case 9:
+ vrtc_offset = -60;
+ LOGERR("about to decrease physical time by 0x%LX seconds",
+ vrtc_offset);
+ vrtc_offset = Issue_VMCALL_UPDATE_PHYSICAL_TIME(vrtc_offset);
+ break;
+ default:
+ LOGERR("usage: 6 for CHIPSET_STOP\n");
+ LOGERR(" 7 for VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET()\n");
+ LOGERR(" 8 for VMCALL_UPDATE_PHYSICAL_TIME(60)\n");
+ LOGERR(" 9 for VMCALL_UPDATE_PHYSICAL_TIME(-60)\n");
+ return -EFAULT;
+ break;
+ }
+ return count;
+}
+
+#endif /* UISLIB_TEST_PROC */
+static struct device_info *
+find_dev(U32 busNo, U32 devNo)
+{
+ struct bus_info *bus;
+ struct device_info *dev = NULL;
+
+ read_lock(&BusListLock);
+ for (bus = BusListHead; bus; bus = bus->next) {
+ if (bus->busNo == busNo) {
+ /* make sure the device number is valid */
+ if (devNo >= bus->deviceCount) {
+ LOGERR("%s bad busNo, devNo=%d,%d",
+ __func__,
+ (int) (busNo), (int) (devNo));
+ goto Away;
+ }
+ dev = bus->device[devNo];
+ if (!dev)
+ LOGERR("%s bad busNo, devNo=%d,%d",
+ __func__,
+ (int) (busNo), (int) (devNo));
+ goto Away;
+ }
+ }
+Away:
+ read_unlock(&BusListLock);
+ return dev;
+}
+
+/* This thread calls the "interrupt" function for each device that has
+ * enabled such using uislib_enable_channel_interrupts(). The "interrupt"
+ * function typically reads and processes the devices's channel input
+ * queue. This thread repeatedly does this, until the thread is told
to stop
+ * (via uisthread_stop()). Sleeping rules:
+ * - If we have called the "interrupt" function for all devices, and
all of
+ * them have reported "nothing processed" (returned 0), then we will
go to
+ * sleep for a maximum of POLLJIFFIES_NORMAL jiffies.
+ * - If anyone calls uislib_force_channel_interrupt(), the above jiffy
+ * sleep will be interrupted, and we will resume calling the "interrupt"
+ * function for all devices.
+ * - The list of devices is dynamically re-ordered in order to
+ * attempt to preserve fairness. Whenever we spin thru the list of
+ * devices and call the dev->interrupt() function, if we find
+ * devices which report that there is still more work to do, the
+ * the first such device we find is moved to the end of the device
+ * list. This ensures that extremely busy devices don't starve out
+ * less-busy ones.
+ *
+ */
+static int
+Process_Incoming(void *v)
+{
+ unsigned long long cur_cycles, old_cycles, idle_cycles, delta_cycles;
+ struct list_head *new_tail = NULL;
+ int i;
+ UIS_DAEMONIZE("dev_incoming");
+ for (i = 0; i < 16; i++) {
+ old_cycles = get_cycles();
+ wait_event_timeout(Wakeup_Polling_Device_Channels,
+ 0, POLLJIFFIES_NORMAL);
+ cur_cycles = get_cycles();
+ if (wait_cycles == 0) {
+ wait_cycles = (cur_cycles - old_cycles);
+ } else {
+ if (wait_cycles < (cur_cycles - old_cycles))
+ wait_cycles = (cur_cycles - old_cycles);
+ }
+ }
+ LOGINF("wait_cycles=%llu", wait_cycles);
+ cycles_before_wait = wait_cycles;
+ idle_cycles = 0;
+ Go_Polling_Device_Channels = 0;
+ while (1) {
+ struct list_head *lelt, *tmp;
+ struct device_info *dev = NULL;
+
+ /* poll each channel for input */
+ LOCKSEM_UNINTERRUPTIBLE(&Lock_Polling_Device_Channels);
+ new_tail = NULL;
+ list_for_each_safe(lelt, tmp, &List_Polling_Device_Channels) {
+ int rc = 0;
+ dev = list_entry(lelt, struct device_info,
+ list_polling_device_channels);
+ LOCKSEM_UNINTERRUPTIBLE(&dev->interrupt_callback_lock);
+ if (dev->interrupt)
+ rc = dev->interrupt(dev->interrupt_context);
+ else
+ continue;
+ UNLOCKSEM(&dev->interrupt_callback_lock);
+ if (rc) {
+ /* dev->interrupt returned, but there
+ * is still more work to do.
+ * Reschedule work to occur as soon as
+ * possible. */
+ idle_cycles = 0;
+ if (new_tail == NULL) {
+ dev->first_busy_cnt++;
+ if (!
+ (list_is_last
+ (lelt,
+ &List_Polling_Device_Channels))) {
+ new_tail = lelt;
+ dev->moved_to_tail_cnt++;
+ } else
+ dev->last_on_list_cnt++;
+ }
+
+ }
+ if (Incoming_ThreadInfo.should_stop)
+ break;
+ }
+ if (new_tail != NULL) {
+ tot_moved_to_tail_cnt++;
+ list_move_tail(new_tail, &List_Polling_Device_Channels);
+ }
+ UNLOCKSEM(&Lock_Polling_Device_Channels);
+ cur_cycles = get_cycles();
+ delta_cycles = cur_cycles - old_cycles;
+ old_cycles = cur_cycles;
+
+ /* At this point, we have scanned thru all of the
+ * channels, and at least one of the following is true:
+ * - there is no input waiting on any of the channels
+ * - we have received a signal to stop this thread
+ */
+ if (Incoming_ThreadInfo.should_stop)
+ break;
+ if (en_smart_wakeup == 0xFF) {
+ LOGINF("en_smart_wakeup set to 0xff, to force exiting
process_incoming");
+ break;
+ }
+ /* wait for POLLJIFFIES_NORMAL jiffies, or until
+ * someone wakes up Wakeup_Polling_Device_Channels,
+ * whichever comes first only do a wait when we have
+ * been idle for cycles_before_wait cycles.
+ */
+ if (idle_cycles > cycles_before_wait) {
+ Go_Polling_Device_Channels = 0;
+ tot_wait_cnt++;
+ wait_event_timeout(Wakeup_Polling_Device_Channels,
+ Go_Polling_Device_Channels,
+ POLLJIFFIES_NORMAL);
+ Go_Polling_Device_Channels = 1;
+ } else {
+ tot_schedule_cnt++;
+ schedule();
+ idle_cycles = idle_cycles + delta_cycles;
+ }
+ }
+ DBGINF("exiting.\n");
+ complete_and_exit(&Incoming_ThreadInfo.has_stopped, 0);
+}
+
+static BOOL
+Initialize_incoming_thread(void)
+{
+ if (Incoming_Thread_Started)
+ return TRUE;
+ if (!uisthread_start(&Incoming_ThreadInfo,
+ &Process_Incoming, NULL, "dev_incoming")) {
+ LOGERR("uisthread_start Initialize_incoming_thread ****FAILED");
+ return FALSE;
+ }
+ Incoming_Thread_Started = TRUE;
+ return TRUE;
+}
+
+/* Add a new device/channel to the list being processed by
+ * Process_Incoming().
+ * <interrupt> - indicates the function to call periodically.
+ * <interrupt_context> - indicates the data to pass to the <interrupt>
+ * function.
+ */
+void
+uislib_enable_channel_interrupts(U32 busNo, U32 devNo,
+ int (*interrupt)(void *),
+ void *interrupt_context)
+{
+ struct device_info *dev;
+ dev = find_dev(busNo, devNo);
+ if (!dev) {
+ LOGERR("%s busNo=%d, devNo=%d", __func__, (int) (busNo),
+ (int) (devNo));
+ return;
+ }
+ LOCKSEM_UNINTERRUPTIBLE(&Lock_Polling_Device_Channels);
+ Initialize_incoming_thread();
+ dev->interrupt = interrupt;
+ dev->interrupt_context = interrupt_context;
+ dev->polling = TRUE;
+ list_add_tail(&(dev->list_polling_device_channels),
+ &List_Polling_Device_Channels);
+ UNLOCKSEM(&Lock_Polling_Device_Channels);
+}
+EXPORT_SYMBOL(uislib_enable_channel_interrupts);
+
+/* Remove a device/channel from the list being processed by
+ * Process_Incoming().
+ */
+void
+uislib_disable_channel_interrupts(U32 busNo, U32 devNo)
+{
+ struct device_info *dev;
+ dev = find_dev(busNo, devNo);
+ if (!dev) {
+ LOGERR("%s busNo=%d, devNo=%d", __func__, (int) (busNo),
+ (int) (devNo));
+ return;
+ }
+ LOCKSEM_UNINTERRUPTIBLE(&Lock_Polling_Device_Channels);
+ list_del(&dev->list_polling_device_channels);
+ dev->polling = FALSE;
+ dev->interrupt = NULL;
+ UNLOCKSEM(&Lock_Polling_Device_Channels);
+}
+EXPORT_SYMBOL(uislib_disable_channel_interrupts);
+
+static void
+do_wakeup_polling_device_channels(struct work_struct *dummy)
+{
+ if (!Go_Polling_Device_Channels) {
+ Go_Polling_Device_Channels = 1;
+ wake_up(&Wakeup_Polling_Device_Channels);
+ }
+}
+
+DECLARE_WORK(Work_wakeup_polling_device_channels,
+ do_wakeup_polling_device_channels);
+
+/* Call this function when you want to send a hint to
Process_Incoming() that
+ * your device might have more requests.
+ */
+void
+uislib_force_channel_interrupt(U32 busNo, U32 devNo)
+{
+ if (en_smart_wakeup == 0)
+ return;
+ if (Go_Polling_Device_Channels)
+ return;
+ /* The point of using schedule_work() instead of just doing
+ * the work inline is to force a slight delay before waking up
+ * the Process_Incoming() thread.
+ */
+ tot_wakeup_cnt++;
+ schedule_work(&Work_wakeup_polling_device_channels);
+}
+EXPORT_SYMBOL(uislib_force_channel_interrupt);
+
+/*****************************************************/
+/* Module Init & Exit functions */
+/*****************************************************/
+
+static int __init
+uislib_mod_init(void)
+{
+
+ LOGINF("MONITORAPIS");
+
+ LOGINF("sizeof(struct uiscmdrsp):%lu bytes\n",
+ (ulong) sizeof(struct uiscmdrsp));
+ LOGINF("sizeof(struct phys_info):%lu\n",
+ (ulong) sizeof(struct phys_info));
+ LOGINF("sizeof(uiscmdrsp_scsi):%lu\n",
+ (ulong) sizeof(struct uiscmdrsp_scsi));
+ LOGINF("sizeof(uiscmdrsp_net):%lu\n",
+ (ulong) sizeof(struct uiscmdrsp_net));
+ LOGINF("sizeof(CONTROLVM_MESSAGE):%lu bytes\n",
+ (ulong) sizeof(CONTROLVM_MESSAGE));
+ LOGINF("sizeof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL):%lu bytes\n",
+ (ulong) sizeof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL));
+ LOGINF("sizeof(CHANNEL_HEADER):%lu bytes\n",
+ (ulong) sizeof(CHANNEL_HEADER));
+ LOGINF("sizeof(ULTRA_IO_CHANNEL_PROTOCOL):%lu bytes\n",
+ (ulong) sizeof(ULTRA_IO_CHANNEL_PROTOCOL));
+ LOGINF("SIZEOF_CMDRSP:%lu bytes\n", SIZEOF_CMDRSP);
+ LOGINF("SIZEOF_PROTOCOL:%lu bytes\n", SIZEOF_PROTOCOL);
+
+ /* initialize global pointers to NULL */
+ BusListHead = NULL;
+ BusListCount = MaxBusCount = 0;
+ rwlock_init(&BusListLock);
+ VirtControlChanFunc = NULL;
+
+ /* Issue VMCALL_GET_CONTROLVM_ADDR to get CtrlChanPhysAddr and
+ * then map this physical address to a virtual address. */
+ POSTCODE_LINUX_2(DRIVER_ENTRY_PC, POSTCODE_SEVERITY_INFO);
+
+ /* create the proc entries for the channels */
+ uislib_proc_dir = proc_mkdir(DIR_PROC_ENTRY, NULL);
+ /* (e.g., for /proc/uislib/vbus/<x>/info) */
+ uislib_proc_vbus_dir = proc_mkdir(DIR_VBUS_PROC_ENTRY,
uislib_proc_dir);
+
+ vnic_proc_entry = proc_create(VNIC_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_vnic_fops);
+ SET_PROC_OWNER(vnic_proc_entry, THIS_MODULE);
+
+ /* for testing purposes only, create the proc entries for
+ * enqueuing Control Channel messages */
+ chipset_proc_entry =
+ proc_create(CHIPSET_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_chipset_fops);
+ SET_PROC_OWNER(chipset_proc_entry, THIS_MODULE);
+
+ info_proc_entry = proc_create(INFO_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_info_fops);
+ SET_PROC_OWNER(info_proc_entry, THIS_MODULE);
+
+ platformnumber_proc_entry =
+ proc_create(PLATFORMNUMBER_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_platformnumber_fops);
+ SET_PROC_OWNER(platformnumberinfo_proc_entry, THIS_MODULE);
+
+ cycles_before_wait_proc_entry =
+ proc_create(CYCLES_BEFORE_WAIT_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_cycles_before_wait_fops);
+ SET_PROC_OWNER(cycles_before_wait_proc_entry, THIS_MODULE);
+
+ reset_counts_proc_entry =
+ proc_create(RESET_COUNTS_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_reset_counts_fops);
+ SET_PROC_OWNER(reset_counts_proc_entry, THIS_MODULE);
+
+ smart_wakeup_proc_entry =
+ proc_create(SMART_WAKEUP_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_smart_wakeup_fops);
+ SET_PROC_OWNER(smart_wakeup_proc_entry, THIS_MODULE);
+
+#ifdef UISLIB_TEST_PROC
+ test_proc_entry = proc_create(TEST_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_test_fops);
+ SET_PROC_OWNER(test_proc_entry, THIS_MODULE);
+
+ bus_proc_entry = proc_create(BUS_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_bus_fops);
+ SET_PROC_OWNER(bus_proc_entry, THIS_MODULE);
+
+ dev_proc_entry = proc_create(DEV_PROC_ENTRY_FN, 0, uislib_proc_dir,
+ &proc_dev_fops);
+ SET_PROC_OWNER(dev_proc_entry, THIS_MODULE);
+#endif /* UISLIB_TEST_PROC */
+ POSTCODE_LINUX_3(DRIVER_EXIT_PC, 0, POSTCODE_SEVERITY_INFO);
+ return 0;
+}
+
+static void __exit
+uislib_mod_exit(void)
+{
+ if (disable_proc_entry)
+ remove_proc_entry(DISABLE_PROC_ENTRY_FN, uislib_proc_dir);
+ if (cycles_before_wait_proc_entry)
+ remove_proc_entry(CYCLES_BEFORE_WAIT_PROC_ENTRY_FN,
+ uislib_proc_dir);
+ if (reset_counts_proc_entry)
+ remove_proc_entry(RESET_COUNTS_PROC_ENTRY_FN, uislib_proc_dir);
+ if (smart_wakeup_proc_entry)
+ remove_proc_entry(SMART_WAKEUP_PROC_ENTRY_FN, uislib_proc_dir);
+ if (ctrlchan_proc_entry)
+ remove_proc_entry(CTRLCHAN_PROC_ENTRY_FN, uislib_proc_dir);
+ if (pmem_proc_entry)
+ remove_proc_entry(PMEM_PROC_ENTRY_FN, uislib_proc_dir);
+ if (info_proc_entry)
+ remove_proc_entry(INFO_PROC_ENTRY_FN, uislib_proc_dir);
+ if (switch_proc_entry)
+ remove_proc_entry(SWITCH_PROC_ENTRY_FN, uislib_proc_dir);
+ if (extport_proc_entry)
+ remove_proc_entry(EXTPORT_PROC_ENTRY_FN, uislib_proc_dir);
+ if (platformnumber_proc_entry)
+ remove_proc_entry(PLATFORMNUMBER_PROC_ENTRY_FN,
+ uislib_proc_dir);
+ if (bus_proc_entry)
+ remove_proc_entry(BUS_PROC_ENTRY_FN, uislib_proc_dir);
+ if (dev_proc_entry)
+ remove_proc_entry(DEV_PROC_ENTRY_FN, uislib_proc_dir);
+ if (vnic_proc_entry)
+ remove_proc_entry(VNIC_PROC_ENTRY_FN, uislib_proc_dir);
+ if (chipset_proc_entry)
+ remove_proc_entry(CHIPSET_PROC_ENTRY_FN, uislib_proc_dir);
+ if (uislib_proc_vbus_dir)
+ remove_proc_entry(DIR_VBUS_PROC_ENTRY, uislib_proc_dir);
+ if (uislib_proc_dir)
+ remove_proc_entry(DIR_PROC_ENTRY, NULL);
+
+ if (ProcReadBuffer) {
+ UISVFREE(ProcReadBuffer, PROC_READ_BUFFER_SIZE);
+ ProcReadBuffer = NULL;
+ }
+
+ DBGINF("goodbye.\n");
+ return;
+}
+
+module_init(uislib_mod_init);
+module_exit(uislib_mod_exit);
+
+int uis_mandatory_services = -1;
+
+module_param_named(mandatory_services, uis_mandatory_services,
+ int, S_IRUGO);
+MODULE_PARM_DESC(uis_mandatory_services,
+ "number of server drivers we expect to register (default=-1
for legacy behavior)");
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Usha Srinivasan");
+MODULE_ALIAS("uislib");
+ /* this is extracted during depmod and kept in modules.dep */
Index: linux-2.6.staging/drivers/staging/unisys/uislib/uisqueue.c
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/uislib/uisqueue.c
@@ -0,0 +1,166 @@
+/* uisqueue.c
+ *
+ * Copyright © 2010 - 2013 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * 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 of the License, 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, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+/* @ALL_INSPECTED */
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "uisutils.h"
+
+#include "chanstub.h"
+
+/* this is shorter than using __FILE__ (full path name) in
+ * debug/info/error messages */
+#define CURRENT_FILE_PC UISLIB_PC_uisqueue_c
+#define __MYFILE__ "uisqueue.c"
+
+#define RETVOID do { goto Away; } while (0)
+#define RETINT(x) do { rc = (x); goto Away; } while (0)
+#define RETPTR(x) do { rc = (x); goto Away; } while (0)
+#define RETBOOL(x) do { rc = (x); goto Away; } while (0)
+
+#define CHECK_CACHE_ALIGN 0
+
+/*****************************************************/
+/* Exported functions */
+/*****************************************************/
+unsigned long long
+uisqueue_InterlockedOr(volatile unsigned long long *Target,
+ unsigned long long Set)
+{
+ unsigned long long i;
+ unsigned long long j;
+
+ j = *Target;
+ do {
+ i = j;
+ j = uislibcmpxchg64((unsigned long long *) Target,
+ i, i | Set, sizeof(*(Target)));
+
+ } while (i != j);
+
+ return j;
+}
+EXPORT_SYMBOL(uisqueue_InterlockedOr);
+
+unsigned long long
+uisqueue_InterlockedAnd(volatile unsigned long long *Target,
+ unsigned long long Set)
+{
+ unsigned long long i;
+ unsigned long long j;
+
+ j = *Target;
+ do {
+ i = j;
+ j = uislibcmpxchg64((unsigned long long *) Target,
+ i, i & Set, sizeof(*(Target)));
+
+ } while (i != j);
+
+ return j;
+}
+EXPORT_SYMBOL(uisqueue_InterlockedAnd);
+
+static U8
+do_locked_client_insert(struct uisqueue_info *queueinfo,
+ unsigned int whichqueue,
+ void *pSignal,
+ spinlock_t *lock,
+ unsigned char issueInterruptIfEmpty,
+ U64 interruptHandle, U8 *channelId)
+{
+ unsigned long flags;
+ unsigned char queueWasEmpty;
+ unsigned int locked = 0;
+ unsigned int acquired = 0;
+ U8 rc = 0;
+
+ spin_lock_irqsave(lock, flags);
+ locked = 1;
+
+ if (!ULTRA_CHANNEL_CLIENT_ACQUIRE_OS(queueinfo->chan, channelId, NULL))
+ RETINT(0);
+
+ acquired = 1;
+
+ queueWasEmpty = SignalQueueIsEmpty(queueinfo->chan, whichqueue);
+ if (!SignalInsert(queueinfo->chan, whichqueue, pSignal))
+ RETINT(0);
+ ULTRA_CHANNEL_CLIENT_RELEASE_OS(queueinfo->chan, channelId, NULL);
+ acquired = 0;
+ spin_unlock_irqrestore(lock, flags);
+ locked = 0;
+
+ queueinfo->packets_sent++;
+
+ RETINT(1);
+
+Away:
+ if (acquired) {
+ ULTRA_CHANNEL_CLIENT_RELEASE_OS(queueinfo->chan, channelId,
+ NULL);
+ acquired = 0;
+ }
+ if (locked) {
+ spin_unlock_irqrestore((spinlock_t *) lock, flags);
+ locked = 0;
+ }
+
+ return rc;
+}
+
+int
+uisqueue_put_cmdrsp_with_lock_client(struct uisqueue_info *queueinfo,
+ struct uiscmdrsp *cmdrsp,
+ unsigned int whichqueue,
+ void *insertlock,
+ unsigned char issueInterruptIfEmpty,
+ U64 interruptHandle,
+ char oktowait, U8 *channelId)
+{
+ while (!do_locked_client_insert(queueinfo, whichqueue, cmdrsp,
+ (spinlock_t *) insertlock,
+ issueInterruptIfEmpty,
+ interruptHandle, channelId)) {
+ if (oktowait != OK_TO_WAIT) {
+ LOGERR("****FAILED SignalInsert failed; cannot wait; insert
aborted\n");
+ return 0; /* failed to queue */
+ }
+ /* try again */
+ LOGERR("****FAILED SignalInsert failed; waiting to try again\n");
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(msecs_to_jiffies(10));
+ }
+ return 1;
+}
+EXPORT_SYMBOL(uisqueue_put_cmdrsp_with_lock_client);
+
+/* uisqueue_get_cmdrsp gets the cmdrsp entry at the head of the queue
+ * returns NULL if queue is empty */
+int
+uisqueue_get_cmdrsp(struct uisqueue_info *queueinfo,
+ void *cmdrsp, unsigned int whichqueue)
+{
+ if (!SignalRemove(queueinfo->chan, whichqueue, cmdrsp))
+ return 0;
+
+ queueinfo->packets_received++;
+
+ return 1; /* Success */
+}
+EXPORT_SYMBOL(uisqueue_get_cmdrsp);
Index: linux-2.6.staging/drivers/staging/unisys/uislib/uisthread.c
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/uislib/uisthread.c
@@ -0,0 +1,85 @@
+/* uisthread.c
+ *
+ * Copyright © 2010 - 2013 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * 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 of the License, 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, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+/* @ALL_INSPECTED */
+#include <asm/processor.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kthread.h>
+#include "uniklog.h"
+#include "uisutils.h"
+#include "uisthread.h"
+
+#define KILL(a, b, c) kill_pid(find_vpid(a), b, c)
+
+/* this is shorter than using __FILE__ (full path name) in
+ * debug/info/error messages
+ */
+#define CURRENT_FILE_PC UISLIB_PC_uisthread_c
+#define __MYFILE__ "uisthread.c"
+
+/*****************************************************/
+/* Exported functions */
+/*****************************************************/
+
+/* returns 0 for failure, 1 for success */
+int
+uisthread_start(struct uisthread_info *thrinfo,
+ int (*threadfn)(void *), void *thrcontext, char *name)
+{
+ thrinfo->should_stop = 0;
+ /* used to stop the thread */
+ init_completion(&thrinfo->has_stopped);
+ thrinfo->task = kthread_create(threadfn, thrcontext, name, NULL);
+ if (thrinfo->task == NULL) {
+ thrinfo->id = 0;
+ return 0; /* failure */
+ }
+ thrinfo->id = thrinfo->task->pid;
+ wake_up_process(thrinfo->task);
+ LOGINF("started thread pid:%d\n", thrinfo->id);
+ return 1;
+
+}
+EXPORT_SYMBOL(uisthread_start);
+
+void
+uisthread_stop(struct uisthread_info *thrinfo)
+{
+ int ret;
+ int stopped = 0;
+ if (thrinfo->id == 0)
+ return; /* thread not running */
+
+ LOGINF("uisthread_stop stopping id:%d\n", thrinfo->id);
+ thrinfo->should_stop = 1;
+ ret = KILL(thrinfo->id, SIGHUP, 1);
+ if (ret) {
+ LOGERR("unable to signal thread %d\n", ret);
+ } else {
+ /* give up if the thread has NOT died in 1 minute */
+ if (wait_for_completion_timeout(&thrinfo->has_stopped, 60 * HZ))
+ stopped = 1;
+ else
+ LOGERR("timed out trying to signal thread\n");
+ }
+ if (stopped) {
+ LOGINF("uisthread_stop stopped id:%d\n", thrinfo->id);
+ thrinfo->id = 0;
+ }
+}
+EXPORT_SYMBOL(uisthread_stop);
Index: linux-2.6.staging/drivers/staging/unisys/uislib/uisutils.c
===================================================================
--- /dev/null
+++ linux-2.6.staging/drivers/staging/unisys/uislib/uisutils.c
@@ -0,0 +1,349 @@
+/* uisutils.c
+ *
+ * Copyright © 2010 - 2013 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * 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 of the License, 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, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <commontypes.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include "uniklog.h"
+#include "uisutils.h"
+#include "version.h"
+#include "vbushelper.h"
+#include "guidutils.h"
+#include <linux/skbuff.h>
+#ifdef CONFIG_HIGHMEM
+#include <linux/highmem.h>
+#endif
+
+/* this is shorter than using __FILE__ (full path name) in
+ * debug/info/error messages
+ */
+#define CURRENT_FILE_PC UISLIB_PC_uisutils_c
+#define __MYFILE__ "uisutils.c"
+
+/* exports */
+atomic_t UisUtils_Registered_Services = ATOMIC_INIT(0);
+ /* num registrations via
+ * uisctrl_register_req_handler() or
+ * uisctrl_register_req_handler_ex() */
+
+
+/*****************************************************/
+/* Utility functions */
+/*****************************************************/
+
+int
+util_add_proc_line_ex(int *total, char **buffer, int *buffer_remaining,
+ char *format, ...)
+{
+ va_list args;
+ int len;
+
+ DBGINF("buffer = 0x%p : *buffer = 0x%p.\n", buffer, *buffer);
+ va_start(args, format);
+ len = vsnprintf(*buffer, *buffer_remaining, format, args);
+ if (len >= *buffer_remaining) {
+ *buffer += *buffer_remaining;
+ *total += *buffer_remaining;
+ *buffer_remaining = 0;
+ LOGERR("bytes remaining is too small!\n");
+ return -1;
+ }
+ *buffer_remaining -= len;
+ *buffer += len;
+ *total += len;
+ return len;
+}
+EXPORT_SYMBOL(util_add_proc_line_ex);
+
+int
+uisctrl_register_req_handler(int type, void *fptr,
+ ULTRA_VBUS_DEVICEINFO *chipset_DriverInfo)
+{
+ LOGINF("type = %d, fptr = 0x%p.\n", type, fptr);
+
+ switch (type) {
+ case 2:
+ if (fptr) {
+ if (!VirtControlChanFunc)
+ atomic_inc(&UisUtils_Registered_Services);
+ VirtControlChanFunc = fptr;
+ } else {
+ if (VirtControlChanFunc)
+ atomic_dec(&UisUtils_Registered_Services);
+ VirtControlChanFunc = NULL;
+ }
+ break;
+
+ default:
+ LOGERR("invalid type %d.\n", type);
+ return 0;
+ }
+ if (chipset_DriverInfo)
+ BusDeviceInfo_Init(chipset_DriverInfo,
+ "chipset", "uislib",
+ VERSION, NULL, __DATE__, __TIME__);
+
+ return 1;
+}
+EXPORT_SYMBOL(uisctrl_register_req_handler);
+
+int
+uisctrl_register_req_handler_ex(GUID switchTypeGuid,
+ const char *switch_type_name,
+ int (*controlfunc)(struct io_msgs *),
+ unsigned long min_channel_bytes,
+ int (*Server_Channel_Ok)(unsigned long
+ channelBytes),
+ int (*Server_Channel_Init)
+ (void *x, unsigned char *clientStr,
+ U32 clientStrLen, U64 bytes),
+ ULTRA_VBUS_DEVICEINFO *chipset_DriverInfo)
+{
+ char s[99];
+ ReqHandlerInfo_t *pReqHandlerInfo;
+ int rc = 0; /* assume failure */
+ LOGINF("type=%s, controlfunc=0x%p.\n",
+ GUID_format1(&switchTypeGuid, s), controlfunc);
+ if (!controlfunc) {
+ LOGERR("%s: controlfunc must be supplied\n",
+ GUID_format1(&switchTypeGuid, s));
+ goto Away;
+ }
+ if (!Server_Channel_Ok) {
+ LOGERR("%s: Server_Channel_Ok must be supplied\n",
+ GUID_format1(&switchTypeGuid, s));
+ goto Away;
+ }
+ if (!Server_Channel_Init) {
+ LOGERR("%s: Server_Channel_Init must be supplied\n",
+ GUID_format1(&switchTypeGuid, s));
+ goto Away;
+ }
+ pReqHandlerInfo = ReqHandlerAdd(switchTypeGuid,
+ switch_type_name,
+ controlfunc,
+ min_channel_bytes,
+ Server_Channel_Ok, Server_Channel_Init);
+ if (!pReqHandlerInfo) {
+ LOGERR("failed to add %s to server list\n",
+ GUID_format1(&switchTypeGuid, s));
+ goto Away;
+ }
+
+ atomic_inc(&UisUtils_Registered_Services);
+ rc = 1; /* success */
+Away:
+ if (rc) {
+ if (chipset_DriverInfo)
+ BusDeviceInfo_Init(chipset_DriverInfo,
+ "chipset", "uislib",
+ VERSION, NULL,
+ __DATE__, __TIME__);
+ } else
+ LOGERR("failed to register type %s.\n",
+ GUID_format1(&switchTypeGuid, s));
+
+ return rc;
+}
+EXPORT_SYMBOL(uisctrl_register_req_handler_ex);
+
+int
+uisctrl_unregister_req_handler_ex(GUID switchTypeGuid)
+{
+ char s[99];
+ int rc = 0; /* assume failure */
+ LOGINF("type=%s.\n", GUID_format1(&switchTypeGuid, s));
+ if (ReqHandlerDel(switchTypeGuid) < 0) {
+ LOGERR("failed to remove %s from server list\n",
+ GUID_format1(&switchTypeGuid, s));
+ goto Away;
+ }
+ atomic_dec(&UisUtils_Registered_Services);
+ rc = 1; /* success */
+Away:
+ if (!rc)
+ LOGERR("failed to unregister type %s.\n",
+ GUID_format1(&switchTypeGuid, s));
+ return rc;
+}
+EXPORT_SYMBOL(uisctrl_unregister_req_handler_ex);
+
+/*
+ * unsigned int util_copy_fragsinfo_from_skb(unsigned char *calling_ctx,
+ * void *skb_in,
+ * unsigned int firstfraglen,
+ * unsigned int frags_max,
+ * struct phys_info frags[])
+ *
+ * calling_ctx - input - a string that is displayed to show
+ * who called * this func
+ * void *skb_in - skb whose frag info we're copying type is hidden
so we
+ * don't need to include skbbuff in uisutils.h which is
+ * included in non-networking code.
+ * unsigned int firstfraglen - input - length of first fragment in skb
+ * unsigned int frags_max - input - max len of frags array
+ * struct phys_info frags[] - output - frags array filled in on output
+ * return value indicates number of
+ * entries filled in frags
+ */
+unsigned int
+util_copy_fragsinfo_from_skb(unsigned char *calling_ctx, void *skb_in,
+ unsigned int firstfraglen, unsigned int frags_max,
+ struct phys_info frags[])
+{
+ unsigned int count = 0, ii, size, offset = 0, numfrags;
+ struct sk_buff *skb = skb_in;
+
+ numfrags = skb_shinfo(skb)->nr_frags;
+
+ while (firstfraglen) {
+ if (count == frags_max) {
+ LOGERR("%s frags array too small: max:%d count:%d\n",
+ calling_ctx, frags_max, count);
+ return -1; /* failure */
+ }
+ frags[count].pi_pfn =
+ page_to_pfn(virt_to_page(skb->data + offset));
+ frags[count].pi_off =
+ (unsigned long) (skb->data + offset) & PI_PAGE_MASK;
+ size =
+ min(firstfraglen,
+ (unsigned int) (PI_PAGE_SIZE - frags[count].pi_off));
+ /* can take smallest of firstfraglen(what's left) OR
+ * bytes left in the page
+ */
+ frags[count].pi_len = size;
+ firstfraglen -= size;
+ offset += size;
+ count++;
+ }
+ if (numfrags) {
+ if ((count + numfrags) > frags_max) {
+ LOGERR("**** FAILED %s frags array too small: max:%d
count+nr_frags:%d\n",
+ calling_ctx, frags_max, count + numfrags);
+ return -1; /* failure */
+ }
+
+ for (ii = 0; ii < numfrags; ii++) {
+ count =
add_physinfo_entries(page_to_pfn(skb_frag_page(&skb_shinfo(skb)->frags[ii])),
/* pfn */
+ skb_shinfo(skb)->frags[ii].
+ page_offset,
+ skb_shinfo(skb)->frags[ii].
+ size, count, frags_max,
+ frags);
+ if (count == 0) {
+ LOGERR("**** FAILED to add physinfo entries\n");
+ return -1; /* failure */
+ }
+ }
+ }
+ if (skb_shinfo(skb)->frag_list) {
+ struct sk_buff *skbinlist;
+ int c;
+ for (skbinlist = skb_shinfo(skb)->frag_list; skbinlist;
+ skbinlist = skbinlist->next) {
+
+ c = util_copy_fragsinfo_from_skb("recursive", skbinlist,
+ skbinlist->len -
+ skbinlist->data_len,
+ frags_max - count,
+ &frags[count]);
+ if (c == -1) {
+ LOGERR("**** FAILED recursive call failed\n");
+ return -1;
+ }
+ count += c;
+ }
+ }
+ return count;
+}
+EXPORT_SYMBOL(util_copy_fragsinfo_from_skb);
+
+static LIST_HEAD(ReqHandlerInfo_list); /* list of ReqHandlerInfo_t */
+static DEFINE_SPINLOCK(ReqHandlerInfo_list_lock);
+
+ReqHandlerInfo_t *
+ReqHandlerAdd(GUID switchTypeGuid,
+ const char *switch_type_name,
+ int (*controlfunc)(struct io_msgs *),
+ unsigned long min_channel_bytes,
+ int (*Server_Channel_Ok)(unsigned long channelBytes),
+ int (*Server_Channel_Init)
+ (void *x, unsigned char *clientStr, U32 clientStrLen, U64
bytes))
+{
+ ReqHandlerInfo_t *rc = NULL;
+
+ rc = UISMALLOC(sizeof(*rc), GFP_ATOMIC);
+ if (!rc)
+ return NULL;
+ memset(rc, 0, sizeof(*rc));
+ rc->switchTypeGuid = switchTypeGuid;
+ rc->controlfunc = controlfunc;
+ rc->min_channel_bytes = min_channel_bytes;
+ rc->Server_Channel_Ok = Server_Channel_Ok;
+ rc->Server_Channel_Init = Server_Channel_Init;
+ if (switch_type_name)
+ strncpy(rc->switch_type_name, switch_type_name,
+ sizeof(rc->switch_type_name) - 1);
+ spin_lock(&ReqHandlerInfo_list_lock);
+ list_add_tail(&(rc->list_link), &ReqHandlerInfo_list);
+ spin_unlock(&ReqHandlerInfo_list_lock);
+
+ return rc;
+}
+
+ReqHandlerInfo_t *
+ReqHandlerFind(GUID switchTypeGuid)
+{
+ struct list_head *lelt, *tmp;
+ ReqHandlerInfo_t *entry = NULL;
+ spin_lock(&ReqHandlerInfo_list_lock);
+ list_for_each_safe(lelt, tmp, &ReqHandlerInfo_list) {
+ entry = list_entry(lelt, ReqHandlerInfo_t, list_link);
+ if (memcmp
+ (&entry->switchTypeGuid, &switchTypeGuid,
+ sizeof(GUID)) == 0) {
+ spin_unlock(&ReqHandlerInfo_list_lock);
+ return entry;
+ }
+ }
+ spin_unlock(&ReqHandlerInfo_list_lock);
+ return NULL;
+}
+
+int
+ReqHandlerDel(GUID switchTypeGuid)
+{
+ struct list_head *lelt, *tmp;
+ ReqHandlerInfo_t *entry = NULL;
+ int rc = -1;
+ spin_lock(&ReqHandlerInfo_list_lock);
+ list_for_each_safe(lelt, tmp, &ReqHandlerInfo_list) {
+ entry = list_entry(lelt, ReqHandlerInfo_t, list_link);
+ if (memcmp
+ (&entry->switchTypeGuid, &switchTypeGuid,
+ sizeof(GUID)) == 0) {
+ list_del(lelt);
+ UISFREE(entry, sizeof(*entry));
+ rc++;
+ }
+ }
+ spin_unlock(&ReqHandlerInfo_list_lock);
+ return rc;
+}
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