#include <linux/mutex.h>
#include <linux/poll.h>
#include <linux/preempt.h>
+#include <linux/sched.h>
#include <linux/spinlock.h>
+#include <linux/string.h>
#include <linux/time.h>
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
struct iso_resource_event {
struct event event;
- struct fw_cdev_event_iso_resource resource;
+ struct fw_cdev_event_iso_resource iso_resource;
};
static inline void __user *u64_to_uptr(__u64 value)
static int release_client_resource(struct client *client, u32 handle,
client_resource_release_fn_t release,
- struct client_resource **resource)
+ struct client_resource **return_resource)
{
- struct client_resource *r;
+ struct client_resource *resource;
spin_lock_irq(&client->lock);
if (client->in_shutdown)
- r = NULL;
+ resource = NULL;
else
- r = idr_find(&client->resource_idr, handle);
- if (r && r->release == release)
+ resource = idr_find(&client->resource_idr, handle);
+ if (resource && resource->release == release)
idr_remove(&client->resource_idr, handle);
spin_unlock_irq(&client->lock);
- if (!(r && r->release == release))
+ if (!(resource && resource->release == release))
return -EINVAL;
- if (resource)
- *resource = r;
+ if (return_resource)
+ *return_resource = resource;
else
- r->release(client, r);
+ resource->release(client, resource);
client_put(client);
client->device->max_speed);
}
+static inline bool is_fcp_request(struct fw_request *request)
+{
+ return request == NULL;
+}
+
static void release_request(struct client *client,
struct client_resource *resource)
{
struct inbound_transaction_resource *r = container_of(resource,
struct inbound_transaction_resource, resource);
- fw_send_response(client->device->card, r->request,
- RCODE_CONFLICT_ERROR);
+ if (is_fcp_request(r->request))
+ kfree(r->data);
+ else
+ fw_send_response(client->device->card, r->request,
+ RCODE_CONFLICT_ERROR);
kfree(r);
}
struct address_handler_resource *handler = callback_data;
struct inbound_transaction_resource *r;
struct inbound_transaction_event *e;
+ void *fcp_frame = NULL;
int ret;
r = kmalloc(sizeof(*r), GFP_ATOMIC);
r->data = payload;
r->length = length;
+ if (is_fcp_request(request)) {
+ /*
+ * FIXME: Let core-transaction.c manage a
+ * single reference-counted copy?
+ */
+ fcp_frame = kmemdup(payload, length, GFP_ATOMIC);
+ if (fcp_frame == NULL)
+ goto failed;
+
+ r->data = fcp_frame;
+ }
+
r->resource.release = release_request;
ret = add_client_resource(handler->client, &r->resource, GFP_ATOMIC);
if (ret < 0)
e->request.closure = handler->closure;
queue_event(handler->client, &e->event,
- &e->request, sizeof(e->request), payload, length);
+ &e->request, sizeof(e->request), r->data, length);
return;
failed:
kfree(r);
kfree(e);
- fw_send_response(card, request, RCODE_CONFLICT_ERROR);
+ kfree(fcp_frame);
+
+ if (!is_fcp_request(request))
+ fw_send_response(card, request, RCODE_CONFLICT_ERROR);
}
static void release_address_handler(struct client *client,
r = container_of(resource, struct inbound_transaction_resource,
resource);
+ if (is_fcp_request(r->request))
+ goto out;
+
if (request->length < r->length)
r->length = request->length;
-
if (copy_from_user(r->data, u64_to_uptr(request->data), r->length)) {
ret = -EFAULT;
+ kfree(r->request);
goto out;
}
-
fw_send_response(client->device->card, r->request, request->rcode);
out:
kfree(r);
e = r->e_dealloc;
r->e_dealloc = NULL;
}
- e->resource.handle = r->resource.handle;
- e->resource.channel = channel;
- e->resource.bandwidth = bandwidth;
+ e->iso_resource.handle = r->resource.handle;
+ e->iso_resource.channel = channel;
+ e->iso_resource.bandwidth = bandwidth;
queue_event(client, &e->event,
- &e->resource, sizeof(e->resource), NULL, 0);
+ &e->iso_resource, sizeof(e->iso_resource), NULL, 0);
if (free) {
cancel_delayed_work(&r->work);
r->e_alloc = e1;
r->e_dealloc = e2;
- e1->resource.closure = request->closure;
- e1->resource.type = FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED;
- e2->resource.closure = request->closure;
- e2->resource.type = FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED;
+ e1->iso_resource.closure = request->closure;
+ e1->iso_resource.type = FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED;
+ e2->iso_resource.closure = request->closure;
+ e2->iso_resource.type = FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED;
if (todo == ISO_RES_ALLOC) {
r->resource.release = release_iso_resource;
static int dispatch_ioctl(struct client *client,
unsigned int cmd, void __user *arg)
{
- char buffer[256];
+ char buffer[sizeof(union {
+ struct fw_cdev_get_info _00;
+ struct fw_cdev_send_request _01;
+ struct fw_cdev_allocate _02;
+ struct fw_cdev_deallocate _03;
+ struct fw_cdev_send_response _04;
+ struct fw_cdev_initiate_bus_reset _05;
+ struct fw_cdev_add_descriptor _06;
+ struct fw_cdev_remove_descriptor _07;
+ struct fw_cdev_create_iso_context _08;
+ struct fw_cdev_queue_iso _09;
+ struct fw_cdev_start_iso _0a;
+ struct fw_cdev_stop_iso _0b;
+ struct fw_cdev_get_cycle_timer _0c;
+ struct fw_cdev_allocate_iso_resource _0d;
+ struct fw_cdev_send_stream_packet _13;
+ })];
int ret;
if (_IOC_TYPE(cmd) != '#' ||
static int shutdown_resource(int id, void *p, void *data)
{
- struct client_resource *r = p;
+ struct client_resource *resource = p;
struct client *client = data;
- r->release(client, r);
+ resource->release(client, resource);
client_put(client);
return 0;
static int fw_device_op_release(struct inode *inode, struct file *file)
{
struct client *client = file->private_data;
- struct event *e, *next_e;
+ struct event *event, *next_event;
mutex_lock(&client->device->client_list_mutex);
list_del(&client->link);
idr_remove_all(&client->resource_idr);
idr_destroy(&client->resource_idr);
- list_for_each_entry_safe(e, next_e, &client->event_list, link)
- kfree(e);
+ list_for_each_entry_safe(event, next_event, &client->event_list, link)
+ kfree(event);
client_put(client);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff