search for: device_num

Further cleanup of the vmbus driver: 1) Cleanup the interrupt handler by inlining some code. 2) Ensure message handling is performed on the same CPU that takes the vmbus interrupt. 3) Check for events before messages (from the host). 4) Disable auto eoi for the vmbus interrupt since Linux will eoi the interrupt anyway. 5) Some general cleanup. Regards, K. Y

Further cleanup of the vmbus driver: 1) Cleanup the interrupt handler by inlining some code. 2) Ensure message handling is performed on the same CPU that takes the vmbus interrupt. 3) Check for events before messages (from the host). 4) Disable auto eoi for the vmbus interrupt since Linux will eoi the interrupt anyway. 5) Some general cleanup. Regards, K. Y

...s that field doesn't exist at all, and we can add new ones + * where it once was. + * + * This way, old code still compiles. Bit of a mess, though. + */ + set_config(dev, sizeof(struct virtio_blk_config), &conf); verbose("device %u: virtblock %llu sectors\n", ++devices.device_num, le64_to_cpu(conf.capacity));

...s that field doesn't exist at all, and we can add new ones + * where it once was. + * + * This way, old code still compiles. Bit of a mess, though. + */ + set_config(dev, sizeof(struct virtio_blk_config), &conf); verbose("device %u: virtblock %llu sectors\n", ++devices.device_num, le64_to_cpu(conf.capacity));

...ver *drv) drv, drv->name); /* The child driver on this vmbus */ - drv->bus = &vmbus_drv.bus; + drv->bus = &hv_bus.bus; ret = driver_register(drv); @@ -609,7 +605,7 @@ int vmbus_child_device_register(struct hv_device *child_device_obj) atomic_inc_return(&device_num)); /* The new device belongs to this bus */ - child_device_obj->device.bus = &vmbus_drv.bus; /* device->dev.bus; */ + child_device_obj->device.bus = &hv_bus.bus; /* device->dev.bus; */ child_device_obj->device.parent = root_dev; child_device_obj->device.release = v...

...ver *drv) drv, drv->name); /* The child driver on this vmbus */ - drv->bus = &vmbus_drv.bus; + drv->bus = &hv_bus.bus; ret = driver_register(drv); @@ -609,7 +605,7 @@ int vmbus_child_device_register(struct hv_device *child_device_obj) atomic_inc_return(&device_num)); /* The new device belongs to this bus */ - child_device_obj->device.bus = &vmbus_drv.bus; /* device->dev.bus; */ + child_device_obj->device.bus = &hv_bus.bus; /* device->dev.bus; */ child_device_obj->device.parent = root_dev; child_device_obj->device.release = v...

This patch changes virtio_pci to use a shared memory area for virtio config info instead of using the PCI configuration space. This is closer semantically to what the virtio API exposes and is it a lot easier to implement on both ends. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index eb9a8e0..7e6e453 100644

This patch changes virtio_pci to use a shared memory area for virtio config info instead of using the PCI configuration space. This is closer semantically to what the virtio API exposes and is it a lot easier to implement on both ends. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index eb9a8e0..7e6e453 100644

Hi, I am doing working on enabling Transcendent Memory(OLS '09) support on lguest. For the same, I need ballooning support for lguest. Is there an implmentation of Virtio Balloon driver, that I can use for my purpose? Could someone give me an insight, as to how to go about, for implementing this myself, incase I dont find this patch... Thankyou. -- Gaurav Kukreja +91 997 030 1257

Hi, I am doing working on enabling Transcendent Memory(OLS '09) support on lguest. For the same, I need ballooning support for lguest. Is there an implmentation of Virtio Balloon driver, that I can use for my purpose? Could someone give me an insight, as to how to go about, for implementing this myself, incase I dont find this patch... Thankyou. -- Gaurav Kukreja +91 997 030 1257

...= &child_device_ctx->device_obj; child_device_obj->channel = channel; memcpy(&child_device_obj->dev_type, type, sizeof(struct hv_guid)); @@ -730,9 +691,6 @@ int vmbus_child_device_register(struct hv_device *root_device_obj, to_vm_device(child_device_obj); static atomic_t device_num = ATOMIC_INIT(0); - DPRINT_DBG(VMBUS_DRV, "child device (%p) registering", - child_device_ctx); - /* Set the device name. Otherwise, device_register() will fail. */ dev_set_name(&child_device_ctx->device, "vmbus_0_%d", atomic_inc_return(&device_num))...

...= &child_device_ctx->device_obj; child_device_obj->channel = channel; memcpy(&child_device_obj->dev_type, type, sizeof(struct hv_guid)); @@ -730,9 +691,6 @@ int vmbus_child_device_register(struct hv_device *root_device_obj, to_vm_device(child_device_obj); static atomic_t device_num = ATOMIC_INIT(0); - DPRINT_DBG(VMBUS_DRV, "child device (%p) registering", - child_device_ctx); - /* Set the device name. Otherwise, device_register() will fail. */ dev_set_name(&child_device_ctx->device, "vmbus_0_%d", atomic_inc_return(&device_num))...

...evice responds to return from I/O thread. */ + dev = new_device("rng", VIRTIO_ID_RNG, fd, handle_rng_input); + + /* The device has one virtqueue, where the Guest places inbufs. */ + add_virtqueue(dev, VIRTQUEUE_NUM, enable_fd); + + verbose("device %u: rng\n", devices.device_num); +} +/* That's the end of device setup. */ + /*L:220 Finally we reach the core of the Launcher, which runs the Guest, serves * its input and output, and finally, lays it to rest. */ static void __attribute__((noreturn)) run_guest(int lguest_fd) @@ -1581,6 +1630,7 @@ static struct option o...

...evice responds to return from I/O thread. */ + dev = new_device("rng", VIRTIO_ID_RNG, fd, handle_rng_input); + + /* The device has one virtqueue, where the Guest places inbufs. */ + add_virtqueue(dev, VIRTQUEUE_NUM, enable_fd); + + verbose("device %u: rng\n", devices.device_num); +} +/* That's the end of device setup. */ + /*L:220 Finally we reach the core of the Launcher, which runs the Guest, serves * its input and output, and finally, lays it to rest. */ static void __attribute__((noreturn)) run_guest(int lguest_fd) @@ -1581,6 +1630,7 @@ static struct option o...

...&conf); /* The I/O thread writes to this end of the pipe when done. */ vblk->done_fd = p[1]; @@ -1497,7 +1531,7 @@ static void setup_block_file(const char *filename) close(vblk->workpipe[0]); verbose("device %u: virtblock %llu sectors\n", - devices.device_num, cap); + devices.device_num, le64_to_cpu(conf.capacity)); } /* That's the end of device setup. */ @@ -1574,12 +1608,12 @@ int main(int argc, char *argv[]) /* First we initialize the device list. Since console and network * device receive input from a file descriptor, we k...

...&conf); /* The I/O thread writes to this end of the pipe when done. */ vblk->done_fd = p[1]; @@ -1497,7 +1531,7 @@ static void setup_block_file(const char *filename) close(vblk->workpipe[0]); verbose("device %u: virtblock %llu sectors\n", - devices.device_num, cap); + devices.device_num, le64_to_cpu(conf.capacity)); } /* That's the end of device setup. */ @@ -1574,12 +1608,12 @@ int main(int argc, char *argv[]) /* First we initialize the device list. Since console and network * device receive input from a file descriptor, we k...

...obj) +int vmbus_child_device_register(struct vm_device *root_device_obj, + struct vm_device *child_device_obj) { int ret = 0; - struct vm_device *root_device_ctx = - to_vm_device(root_device_obj); - struct vm_device *child_device_ctx = - to_vm_device(child_device_obj); static atomic_t device_num = ATOMIC_INIT(0); DPRINT_DBG(VMBUS_DRV, "child device (%p) registering", - child_device_ctx); + child_device_obj); /* Set the device name. Otherwise, device_register() will fail. */ - dev_set_name(&child_device_ctx->device, "vmbus_0_%d", + dev_set_name(&am...

...obj) +int vmbus_child_device_register(struct vm_device *root_device_obj, + struct vm_device *child_device_obj) { int ret = 0; - struct vm_device *root_device_ctx = - to_vm_device(root_device_obj); - struct vm_device *child_device_ctx = - to_vm_device(child_device_obj); static atomic_t device_num = ATOMIC_INIT(0); DPRINT_DBG(VMBUS_DRV, "child device (%p) registering", - child_device_ctx); + child_device_obj); /* Set the device name. Otherwise, device_register() will fail. */ - dev_set_name(&child_device_ctx->device, "vmbus_0_%d", + dev_set_name(&am...

Further cleanup of the hv drivers. 1) Cleanup reference counting. 2) Handle all block devices using the storvsc driver. I have modified the implementation here based on Christoph's feedback on my earlier implementation. 3) Fix bugs. 4) Accomodate some host side scsi emulation bugs. 5) In case of scsi errors off-line the device. This patch-set further reduces the size of

Further cleanup of the hv drivers. 1) Cleanup reference counting. 2) Handle all block devices using the storvsc driver. I have modified the implementation here based on Christoph's feedback on my earlier implementation. 3) Fix bugs. 4) Accomodate some host side scsi emulation bugs. 5) In case of scsi errors off-line the device. This patch-set further reduces the size of