Staging: hv: remove vmbus.c
Merge the functions into vmbus_drv.c as there's no need to have them separate anymore. It will also make unwinding some of the function and pointer mess easier, as well as making functions static in the future. Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
1953ecfc29
commit
36199a992a
@ -5,7 +5,7 @@ obj-$(CONFIG_HYPERV_NET) += hv_netvsc.o
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obj-$(CONFIG_HYPERV_UTILS) += hv_utils.o
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obj-$(CONFIG_HYPERV_UTILS) += hv_utils.o
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hv_vmbus-y := vmbus_drv.o osd.o \
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hv_vmbus-y := vmbus_drv.o osd.o \
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vmbus.o hv.o connection.o channel.o \
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hv.o connection.o channel.o \
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channel_mgmt.o ring_buffer.o
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channel_mgmt.o ring_buffer.o
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hv_storvsc-y := storvsc_drv.o storvsc.o
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hv_storvsc-y := storvsc_drv.o storvsc.o
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hv_blkvsc-y := blkvsc_drv.o blkvsc.o
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hv_blkvsc-y := blkvsc_drv.o blkvsc.o
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@ -1,236 +0,0 @@
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/*
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* Copyright (c) 2009, Microsoft Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Authors:
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* Haiyang Zhang <haiyangz@microsoft.com>
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* Hank Janssen <hjanssen@microsoft.com>
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*
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*/
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include "osd.h"
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#include "logging.h"
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#include "version_info.h"
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#include "vmbus_private.h"
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static const char *gDriverName = "hyperv";
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/*
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* Windows vmbus does not defined this.
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* We defined this to be consistent with other devices
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*/
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/* {c5295816-f63a-4d5f-8d1a-4daf999ca185} */
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static const struct hv_guid gVmbusDeviceType = {
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.data = {
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0x16, 0x58, 0x29, 0xc5, 0x3a, 0xf6, 0x5f, 0x4d,
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0x8d, 0x1a, 0x4d, 0xaf, 0x99, 0x9c, 0xa1, 0x85
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}
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};
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/* {ac3760fc-9adf-40aa-9427-a70ed6de95c5} */
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static const struct hv_guid gVmbusDeviceId = {
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.data = {
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0xfc, 0x60, 0x37, 0xac, 0xdf, 0x9a, 0xaa, 0x40,
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0x94, 0x27, 0xa7, 0x0e, 0xd6, 0xde, 0x95, 0xc5
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}
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};
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static struct hv_driver *gDriver; /* vmbus driver object */
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static struct hv_device *gDevice; /* vmbus root device */
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/*
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* VmbusChildDeviceAdd - Registers the child device with the vmbus
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*/
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int VmbusChildDeviceAdd(struct hv_device *ChildDevice)
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{
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return vmbus_child_device_register(gDevice, ChildDevice);
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}
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/*
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* VmbusOnDeviceAdd - Callback when the root bus device is added
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*/
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static int VmbusOnDeviceAdd(struct hv_device *dev, void *AdditionalInfo)
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{
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u32 *irqvector = AdditionalInfo;
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int ret;
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gDevice = dev;
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memcpy(&gDevice->deviceType, &gVmbusDeviceType, sizeof(struct hv_guid));
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memcpy(&gDevice->deviceInstance, &gVmbusDeviceId,
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sizeof(struct hv_guid));
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/* strcpy(dev->name, "vmbus"); */
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/* SynIC setup... */
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on_each_cpu(hv_synic_init, (void *)irqvector, 1);
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/* Connect to VMBus in the root partition */
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ret = VmbusConnect();
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/* VmbusSendEvent(device->localPortId+1); */
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return ret;
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}
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/*
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* VmbusOnDeviceRemove - Callback when the root bus device is removed
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*/
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static int VmbusOnDeviceRemove(struct hv_device *dev)
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{
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int ret = 0;
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vmbus_release_unattached_channels();
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VmbusDisconnect();
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on_each_cpu(hv_synic_cleanup, NULL, 1);
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return ret;
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}
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/*
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* VmbusOnCleanup - Perform any cleanup when the driver is removed
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*/
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static void VmbusOnCleanup(struct hv_driver *drv)
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{
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/* struct vmbus_driver *driver = (struct vmbus_driver *)drv; */
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hv_cleanup();
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}
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/*
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* vmbus_on_msg_dpc - DPC routine to handle messages from the hypervisior
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*/
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void vmbus_on_msg_dpc(struct hv_driver *drv)
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{
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int cpu = smp_processor_id();
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void *page_addr = hv_context.synic_message_page[cpu];
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struct hv_message *msg = (struct hv_message *)page_addr +
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VMBUS_MESSAGE_SINT;
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struct hv_message *copied;
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while (1) {
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if (msg->header.message_type == HVMSG_NONE) {
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/* no msg */
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break;
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} else {
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copied = kmemdup(msg, sizeof(*copied), GFP_ATOMIC);
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if (copied == NULL)
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continue;
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osd_schedule_callback(gVmbusConnection.WorkQueue,
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vmbus_onmessage,
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(void *)copied);
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}
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msg->header.message_type = HVMSG_NONE;
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/*
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* Make sure the write to MessageType (ie set to
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* HVMSG_NONE) happens before we read the
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* MessagePending and EOMing. Otherwise, the EOMing
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* will not deliver any more messages since there is
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* no empty slot
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*/
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mb();
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if (msg->header.message_flags.msg_pending) {
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/*
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* This will cause message queue rescan to
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* possibly deliver another msg from the
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* hypervisor
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*/
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wrmsrl(HV_X64_MSR_EOM, 0);
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}
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}
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}
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/*
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* vmbus_on_event_dpc - DPC routine to handle events from the hypervisior
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*/
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void vmbus_on_event_dpc(struct hv_driver *drv)
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{
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/* TODO: Process any events */
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VmbusOnEvents();
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}
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/*
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* vmbus_on_isr - ISR routine
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*/
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int vmbus_on_isr(struct hv_driver *drv)
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{
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int ret = 0;
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int cpu = smp_processor_id();
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void *page_addr;
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struct hv_message *msg;
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union hv_synic_event_flags *event;
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page_addr = hv_context.synic_message_page[cpu];
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msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT;
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/* Check if there are actual msgs to be process */
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if (msg->header.message_type != HVMSG_NONE) {
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DPRINT_DBG(VMBUS, "received msg type %d size %d",
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msg->header.message_type,
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msg->header.payload_size);
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ret |= 0x1;
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}
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/* TODO: Check if there are events to be process */
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page_addr = hv_context.synic_event_page[cpu];
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event = (union hv_synic_event_flags *)page_addr + VMBUS_MESSAGE_SINT;
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/* Since we are a child, we only need to check bit 0 */
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if (test_and_clear_bit(0, (unsigned long *) &event->flags32[0])) {
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DPRINT_DBG(VMBUS, "received event %d", event->flags32[0]);
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ret |= 0x2;
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}
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return ret;
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}
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/*
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* VmbusInitialize - Main entry point
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*/
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int VmbusInitialize(struct hv_driver *driver)
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{
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int ret;
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DPRINT_INFO(VMBUS, "+++++++ HV Driver version = %s +++++++",
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HV_DRV_VERSION);
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DPRINT_INFO(VMBUS, "+++++++ Vmbus supported version = %d +++++++",
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VMBUS_REVISION_NUMBER);
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DPRINT_INFO(VMBUS, "+++++++ Vmbus using SINT %d +++++++",
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VMBUS_MESSAGE_SINT);
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DPRINT_DBG(VMBUS, "sizeof(vmbus_channel_packet_page_buffer)=%zd, "
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"sizeof(VMBUS_CHANNEL_PACKET_MULITPAGE_BUFFER)=%zd",
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sizeof(struct vmbus_channel_packet_page_buffer),
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sizeof(struct vmbus_channel_packet_multipage_buffer));
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driver->name = gDriverName;
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memcpy(&driver->deviceType, &gVmbusDeviceType, sizeof(struct hv_guid));
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/* Setup dispatch table */
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driver->OnDeviceAdd = VmbusOnDeviceAdd;
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driver->OnDeviceRemove = VmbusOnDeviceRemove;
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driver->OnCleanup = VmbusOnCleanup;
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/* Hypervisor initialization...setup hypercall page..etc */
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ret = hv_init();
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if (ret != 0)
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DPRINT_ERR(VMBUS, "Unable to initialize the hypervisor - 0x%x",
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ret);
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gDriver = driver;
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return ret;
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}
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@ -33,6 +33,7 @@
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#include "logging.h"
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#include "logging.h"
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#include "vmbus.h"
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#include "vmbus.h"
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#include "channel.h"
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#include "channel.h"
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#include "vmbus_private.h"
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/* FIXME! We need to do this dynamically for PIC and APIC system */
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/* FIXME! We need to do this dynamically for PIC and APIC system */
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@ -122,6 +123,214 @@ static struct vmbus_driver_context g_vmbus_drv = {
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.bus.dev_attrs = vmbus_device_attrs,
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.bus.dev_attrs = vmbus_device_attrs,
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};
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};
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static const char *gDriverName = "hyperv";
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/*
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* Windows vmbus does not defined this.
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* We defined this to be consistent with other devices
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*/
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/* {c5295816-f63a-4d5f-8d1a-4daf999ca185} */
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static const struct hv_guid gVmbusDeviceType = {
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.data = {
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0x16, 0x58, 0x29, 0xc5, 0x3a, 0xf6, 0x5f, 0x4d,
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0x8d, 0x1a, 0x4d, 0xaf, 0x99, 0x9c, 0xa1, 0x85
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}
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};
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/* {ac3760fc-9adf-40aa-9427-a70ed6de95c5} */
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static const struct hv_guid gVmbusDeviceId = {
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.data = {
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0xfc, 0x60, 0x37, 0xac, 0xdf, 0x9a, 0xaa, 0x40,
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0x94, 0x27, 0xa7, 0x0e, 0xd6, 0xde, 0x95, 0xc5
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}
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};
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static struct hv_driver *gDriver; /* vmbus driver object */
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static struct hv_device *gDevice; /* vmbus root device */
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/*
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* VmbusChildDeviceAdd - Registers the child device with the vmbus
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*/
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int VmbusChildDeviceAdd(struct hv_device *ChildDevice)
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{
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return vmbus_child_device_register(gDevice, ChildDevice);
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}
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/*
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* VmbusOnDeviceAdd - Callback when the root bus device is added
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*/
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static int VmbusOnDeviceAdd(struct hv_device *dev, void *AdditionalInfo)
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{
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u32 *irqvector = AdditionalInfo;
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int ret;
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gDevice = dev;
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memcpy(&gDevice->deviceType, &gVmbusDeviceType, sizeof(struct hv_guid));
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memcpy(&gDevice->deviceInstance, &gVmbusDeviceId,
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sizeof(struct hv_guid));
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/* strcpy(dev->name, "vmbus"); */
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/* SynIC setup... */
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on_each_cpu(hv_synic_init, (void *)irqvector, 1);
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/* Connect to VMBus in the root partition */
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ret = VmbusConnect();
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/* VmbusSendEvent(device->localPortId+1); */
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return ret;
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}
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/*
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* VmbusOnDeviceRemove - Callback when the root bus device is removed
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*/
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static int VmbusOnDeviceRemove(struct hv_device *dev)
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{
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int ret = 0;
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vmbus_release_unattached_channels();
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VmbusDisconnect();
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on_each_cpu(hv_synic_cleanup, NULL, 1);
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return ret;
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}
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/*
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* VmbusOnCleanup - Perform any cleanup when the driver is removed
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*/
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static void VmbusOnCleanup(struct hv_driver *drv)
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{
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/* struct vmbus_driver *driver = (struct vmbus_driver *)drv; */
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hv_cleanup();
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}
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/*
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* vmbus_on_msg_dpc - DPC routine to handle messages from the hypervisior
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*/
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void vmbus_on_msg_dpc(struct hv_driver *drv)
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{
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int cpu = smp_processor_id();
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void *page_addr = hv_context.synic_message_page[cpu];
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struct hv_message *msg = (struct hv_message *)page_addr +
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VMBUS_MESSAGE_SINT;
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struct hv_message *copied;
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while (1) {
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if (msg->header.message_type == HVMSG_NONE) {
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/* no msg */
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break;
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} else {
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copied = kmemdup(msg, sizeof(*copied), GFP_ATOMIC);
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if (copied == NULL)
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continue;
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osd_schedule_callback(gVmbusConnection.WorkQueue,
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vmbus_onmessage,
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(void *)copied);
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}
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msg->header.message_type = HVMSG_NONE;
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/*
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* Make sure the write to MessageType (ie set to
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* HVMSG_NONE) happens before we read the
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* MessagePending and EOMing. Otherwise, the EOMing
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* will not deliver any more messages since there is
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||||||
|
* no empty slot
|
||||||
|
*/
|
||||||
|
mb();
|
||||||
|
|
||||||
|
if (msg->header.message_flags.msg_pending) {
|
||||||
|
/*
|
||||||
|
* This will cause message queue rescan to
|
||||||
|
* possibly deliver another msg from the
|
||||||
|
* hypervisor
|
||||||
|
*/
|
||||||
|
wrmsrl(HV_X64_MSR_EOM, 0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* vmbus_on_event_dpc - DPC routine to handle events from the hypervisior
|
||||||
|
*/
|
||||||
|
void vmbus_on_event_dpc(struct hv_driver *drv)
|
||||||
|
{
|
||||||
|
/* TODO: Process any events */
|
||||||
|
VmbusOnEvents();
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* vmbus_on_isr - ISR routine
|
||||||
|
*/
|
||||||
|
int vmbus_on_isr(struct hv_driver *drv)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
int cpu = smp_processor_id();
|
||||||
|
void *page_addr;
|
||||||
|
struct hv_message *msg;
|
||||||
|
union hv_synic_event_flags *event;
|
||||||
|
|
||||||
|
page_addr = hv_context.synic_message_page[cpu];
|
||||||
|
msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT;
|
||||||
|
|
||||||
|
/* Check if there are actual msgs to be process */
|
||||||
|
if (msg->header.message_type != HVMSG_NONE) {
|
||||||
|
DPRINT_DBG(VMBUS, "received msg type %d size %d",
|
||||||
|
msg->header.message_type,
|
||||||
|
msg->header.payload_size);
|
||||||
|
ret |= 0x1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* TODO: Check if there are events to be process */
|
||||||
|
page_addr = hv_context.synic_event_page[cpu];
|
||||||
|
event = (union hv_synic_event_flags *)page_addr + VMBUS_MESSAGE_SINT;
|
||||||
|
|
||||||
|
/* Since we are a child, we only need to check bit 0 */
|
||||||
|
if (test_and_clear_bit(0, (unsigned long *) &event->flags32[0])) {
|
||||||
|
DPRINT_DBG(VMBUS, "received event %d", event->flags32[0]);
|
||||||
|
ret |= 0x2;
|
||||||
|
}
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* VmbusInitialize - Main entry point
|
||||||
|
*/
|
||||||
|
int VmbusInitialize(struct hv_driver *driver)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
DPRINT_INFO(VMBUS, "+++++++ HV Driver version = %s +++++++",
|
||||||
|
HV_DRV_VERSION);
|
||||||
|
DPRINT_INFO(VMBUS, "+++++++ Vmbus supported version = %d +++++++",
|
||||||
|
VMBUS_REVISION_NUMBER);
|
||||||
|
DPRINT_INFO(VMBUS, "+++++++ Vmbus using SINT %d +++++++",
|
||||||
|
VMBUS_MESSAGE_SINT);
|
||||||
|
DPRINT_DBG(VMBUS, "sizeof(vmbus_channel_packet_page_buffer)=%zd, "
|
||||||
|
"sizeof(VMBUS_CHANNEL_PACKET_MULITPAGE_BUFFER)=%zd",
|
||||||
|
sizeof(struct vmbus_channel_packet_page_buffer),
|
||||||
|
sizeof(struct vmbus_channel_packet_multipage_buffer));
|
||||||
|
|
||||||
|
driver->name = gDriverName;
|
||||||
|
memcpy(&driver->deviceType, &gVmbusDeviceType, sizeof(struct hv_guid));
|
||||||
|
|
||||||
|
/* Setup dispatch table */
|
||||||
|
driver->OnDeviceAdd = VmbusOnDeviceAdd;
|
||||||
|
driver->OnDeviceRemove = VmbusOnDeviceRemove;
|
||||||
|
driver->OnCleanup = VmbusOnCleanup;
|
||||||
|
|
||||||
|
/* Hypervisor initialization...setup hypercall page..etc */
|
||||||
|
ret = hv_init();
|
||||||
|
if (ret != 0)
|
||||||
|
DPRINT_ERR(VMBUS, "Unable to initialize the hypervisor - 0x%x",
|
||||||
|
ret);
|
||||||
|
gDriver = driver;
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
static void get_channel_info(struct hv_device *device,
|
static void get_channel_info(struct hv_device *device,
|
||||||
struct hv_device_info *info)
|
struct hv_device_info *info)
|
||||||
{
|
{
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user