extern const struct pci_device_id ixgbe_pci_tbl[];
extern const struct pci_device_id igb_pci_tbl[];
-static int kni_open(struct inode *inode, struct file *file);
-static int kni_release(struct inode *inode, struct file *file);
-static int kni_ioctl(struct inode *inode, unsigned int ioctl_num,
- unsigned long ioctl_param);
-static int kni_compat_ioctl(struct inode *inode, unsigned int ioctl_num,
- unsigned long ioctl_param);
-static int kni_dev_remove(struct kni_dev *dev);
-
-static int __init kni_parse_kthread_mode(void);
-
-/* KNI processing for single kernel thread mode */
-static int kni_thread_single(void *unused);
-/* KNI processing for multiple kernel thread mode */
-static int kni_thread_multiple(void *param);
-
-static const struct file_operations kni_fops = {
- .owner = THIS_MODULE,
- .open = kni_open,
- .release = kni_release,
- .unlocked_ioctl = (void *)kni_ioctl,
- .compat_ioctl = (void *)kni_compat_ioctl,
-};
-
-static struct miscdevice kni_misc = {
- .minor = MISC_DYNAMIC_MINOR,
- .name = KNI_DEVICE,
- .fops = &kni_fops,
-};
-
/* loopback mode */
static char *lo_mode;
#endif
};
-static int __init
-kni_init(void)
-{
- int rc;
-
- pr_debug("######## DPDK kni module loading ########\n");
-
- if (kni_parse_kthread_mode() < 0) {
- pr_err("Invalid parameter for kthread_mode\n");
- return -EINVAL;
- }
-
- if (multiple_kthread_on == 0)
- pr_debug("Single kernel thread for all KNI devices\n");
- else
- pr_debug("Multiple kernel thread mode enabled\n");
-
-#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
- rc = register_pernet_subsys(&kni_net_ops);
-#else
- rc = register_pernet_gen_subsys(&kni_net_id, &kni_net_ops);
-#endif
- if (rc)
- return -EPERM;
-
- rc = misc_register(&kni_misc);
- if (rc != 0) {
- pr_err("Misc registration failed\n");
- goto out;
- }
-
- /* Configure the lo mode according to the input parameter */
- kni_net_config_lo_mode(lo_mode);
-
- pr_debug("######## DPDK kni module loaded ########\n");
-
- return 0;
-
-out:
-#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
- unregister_pernet_subsys(&kni_net_ops);
-#else
- unregister_pernet_gen_subsys(kni_net_id, &kni_net_ops);
-#endif
- return rc;
-}
-
-static void __exit
-kni_exit(void)
-{
- misc_deregister(&kni_misc);
-#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
- unregister_pernet_subsys(&kni_net_ops);
-#else
- unregister_pernet_gen_subsys(kni_net_id, &kni_net_ops);
-#endif
- pr_debug("####### DPDK kni module unloaded #######\n");
-}
-
-static int __init
-kni_parse_kthread_mode(void)
-{
- if (!kthread_mode)
- return 0;
-
- if (strcmp(kthread_mode, "single") == 0)
- return 0;
- else if (strcmp(kthread_mode, "multiple") == 0)
- multiple_kthread_on = 1;
- else
- return -1;
-
- return 0;
-}
-
-static int
-kni_open(struct inode *inode, struct file *file)
-{
- struct net *net = current->nsproxy->net_ns;
- struct kni_net *knet = net_generic(net, kni_net_id);
-
- /* kni device can be opened by one user only per netns */
- if (test_and_set_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use))
- return -EBUSY;
-
- file->private_data = get_net(net);
- pr_debug("/dev/kni opened\n");
-
- return 0;
-}
-
-static int
-kni_release(struct inode *inode, struct file *file)
-{
- struct net *net = file->private_data;
- struct kni_net *knet = net_generic(net, kni_net_id);
- struct kni_dev *dev, *n;
-
- /* Stop kernel thread for single mode */
- if (multiple_kthread_on == 0) {
- mutex_lock(&knet->kni_kthread_lock);
- /* Stop kernel thread */
- if (knet->kni_kthread != NULL) {
- kthread_stop(knet->kni_kthread);
- knet->kni_kthread = NULL;
- }
- mutex_unlock(&knet->kni_kthread_lock);
- }
-
- down_write(&knet->kni_list_lock);
- list_for_each_entry_safe(dev, n, &knet->kni_list_head, list) {
- /* Stop kernel thread for multiple mode */
- if (multiple_kthread_on && dev->pthread != NULL) {
- kthread_stop(dev->pthread);
- dev->pthread = NULL;
- }
-
-#ifdef RTE_KNI_VHOST
- kni_vhost_backend_release(dev);
-#endif
- kni_dev_remove(dev);
- list_del(&dev->list);
- }
- up_write(&knet->kni_list_lock);
-
- /* Clear the bit of device in use */
- clear_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use);
-
- put_net(net);
- pr_debug("/dev/kni closed\n");
-
- return 0;
-}
-
static int
kni_thread_single(void *data)
{
return 0;
}
+static int
+kni_open(struct inode *inode, struct file *file)
+{
+ struct net *net = current->nsproxy->net_ns;
+ struct kni_net *knet = net_generic(net, kni_net_id);
+
+ /* kni device can be opened by one user only per netns */
+ if (test_and_set_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use))
+ return -EBUSY;
+
+ file->private_data = get_net(net);
+ pr_debug("/dev/kni opened\n");
+
+ return 0;
+}
+
static int
kni_dev_remove(struct kni_dev *dev)
{
return 0;
}
+static int
+kni_release(struct inode *inode, struct file *file)
+{
+ struct net *net = file->private_data;
+ struct kni_net *knet = net_generic(net, kni_net_id);
+ struct kni_dev *dev, *n;
+
+ /* Stop kernel thread for single mode */
+ if (multiple_kthread_on == 0) {
+ mutex_lock(&knet->kni_kthread_lock);
+ /* Stop kernel thread */
+ if (knet->kni_kthread != NULL) {
+ kthread_stop(knet->kni_kthread);
+ knet->kni_kthread = NULL;
+ }
+ mutex_unlock(&knet->kni_kthread_lock);
+ }
+
+ down_write(&knet->kni_list_lock);
+ list_for_each_entry_safe(dev, n, &knet->kni_list_head, list) {
+ /* Stop kernel thread for multiple mode */
+ if (multiple_kthread_on && dev->pthread != NULL) {
+ kthread_stop(dev->pthread);
+ dev->pthread = NULL;
+ }
+
+#ifdef RTE_KNI_VHOST
+ kni_vhost_backend_release(dev);
+#endif
+ kni_dev_remove(dev);
+ list_del(&dev->list);
+ }
+ up_write(&knet->kni_list_lock);
+
+ /* Clear the bit of device in use */
+ clear_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use);
+
+ put_net(net);
+ pr_debug("/dev/kni closed\n");
+
+ return 0;
+}
+
static int
kni_check_param(struct kni_dev *kni, struct rte_kni_device_info *dev)
{
return -EINVAL;
}
+static const struct file_operations kni_fops = {
+ .owner = THIS_MODULE,
+ .open = kni_open,
+ .release = kni_release,
+ .unlocked_ioctl = (void *)kni_ioctl,
+ .compat_ioctl = (void *)kni_compat_ioctl,
+};
+
+static struct miscdevice kni_misc = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = KNI_DEVICE,
+ .fops = &kni_fops,
+};
+
+static int __init
+kni_parse_kthread_mode(void)
+{
+ if (!kthread_mode)
+ return 0;
+
+ if (strcmp(kthread_mode, "single") == 0)
+ return 0;
+ else if (strcmp(kthread_mode, "multiple") == 0)
+ multiple_kthread_on = 1;
+ else
+ return -1;
+
+ return 0;
+}
+
+static int __init
+kni_init(void)
+{
+ int rc;
+
+ pr_debug("######## DPDK kni module loading ########\n");
+
+ if (kni_parse_kthread_mode() < 0) {
+ pr_err("Invalid parameter for kthread_mode\n");
+ return -EINVAL;
+ }
+
+ if (multiple_kthread_on == 0)
+ pr_debug("Single kernel thread for all KNI devices\n");
+ else
+ pr_debug("Multiple kernel thread mode enabled\n");
+
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ rc = register_pernet_subsys(&kni_net_ops);
+#else
+ rc = register_pernet_gen_subsys(&kni_net_id, &kni_net_ops);
+#endif
+ if (rc)
+ return -EPERM;
+
+ rc = misc_register(&kni_misc);
+ if (rc != 0) {
+ pr_err("Misc registration failed\n");
+ goto out;
+ }
+
+ /* Configure the lo mode according to the input parameter */
+ kni_net_config_lo_mode(lo_mode);
+
+ pr_debug("######## DPDK kni module loaded ########\n");
+
+ return 0;
+
+out:
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ unregister_pernet_subsys(&kni_net_ops);
+#else
+ unregister_pernet_gen_subsys(kni_net_id, &kni_net_ops);
+#endif
+ return rc;
+}
+
+static void __exit
+kni_exit(void)
+{
+ misc_deregister(&kni_misc);
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ unregister_pernet_subsys(&kni_net_ops);
+#else
+ unregister_pernet_gen_subsys(kni_net_id, &kni_net_ops);
+#endif
+ pr_debug("####### DPDK kni module unloaded #######\n");
+}
+
module_init(kni_init);
module_exit(kni_exit);
git.droids-corp.org / dpdk.git / blobdiff