/*-
* GPL LICENSE SUMMARY
- *
- * Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
- *
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
- *
+ *
* 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. See the GNU
* General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
- *
+ *
* Contact Information:
* Intel Corporation
*/
+#include <linux/version.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
#include <linux/pci.h>
#include <linux/kthread.h>
#include <linux/rwsem.h>
+#include <linux/nsproxy.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
#include <exec-env/rte_kni_common.h>
+
+#include "compat.h"
#include "kni_dev.h"
-#include <rte_config.h>
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Intel Corporation");
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 kernel thread for rx */
-static int kni_thread(void *unused);
+/* 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 struct file_operations kni_fops = {
.owner = THIS_MODULE,
/* loopback mode */
static char *lo_mode = NULL;
+/* Kernel thread mode */
+static char *kthread_mode = NULL;
+static unsigned multiple_kthread_on = 0;
+
#define KNI_DEV_IN_USE_BIT_NUM 0 /* Bit number for device in use */
-static volatile unsigned long device_in_use; /* device in use flag */
-static struct task_struct *kni_kthread;
+static int kni_net_id;
+
+struct kni_net {
+ unsigned long device_in_use; /* device in use flag */
+ struct task_struct *kni_kthread;
+ struct rw_semaphore kni_list_lock;
+ struct list_head kni_list_head;
+};
+
+static int __net_init kni_init_net(struct net *net)
+{
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ struct kni_net *knet = net_generic(net, kni_net_id);
+#else
+ struct kni_net *knet;
+ int ret;
+
+ knet = kmalloc(sizeof(struct kni_net), GFP_KERNEL);
+ if (!knet) {
+ ret = -ENOMEM;
+ return ret;
+ }
+#endif
+
+ /* Clear the bit of device in use */
+ clear_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use);
+
+ init_rwsem(&knet->kni_list_lock);
+ INIT_LIST_HEAD(&knet->kni_list_head);
+
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ return 0;
+#else
+ ret = net_assign_generic(net, kni_net_id, knet);
+ if (ret < 0)
+ kfree(knet);
+
+ return ret;
+#endif
+}
-/* kni list lock */
-static DECLARE_RWSEM(kni_list_lock);
+static void __net_exit kni_exit_net(struct net *net)
+{
+#ifndef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ struct kni_net *knet = net_generic(net, kni_net_id);
+
+ kfree(knet);
+#endif
+}
-/* kni list */
-static struct list_head kni_list_head = LIST_HEAD_INIT(kni_list_head);
+static struct pernet_operations kni_net_ops = {
+ .init = kni_init_net,
+ .exit = kni_exit_net,
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ .id = &kni_net_id,
+ .size = sizeof(struct kni_net),
+#endif
+};
static int __init
kni_init(void)
{
+ int rc;
+
KNI_PRINT("######## DPDK kni module loading ########\n");
- if (misc_register(&kni_misc) != 0) {
- KNI_ERR("Misc registration failed\n");
- return 1;
+ if (kni_parse_kthread_mode() < 0) {
+ KNI_ERR("Invalid parameter for kthread_mode\n");
+ return -EINVAL;
}
- /* Clear the bit of device in use */
- clear_bit(KNI_DEV_IN_USE_BIT_NUM, &device_in_use);
+#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) {
+ KNI_ERR("Misc registration failed\n");
+ goto out;
+ }
/* Configure the lo mode according to the input parameter */
kni_net_config_lo_mode(lo_mode);
KNI_PRINT("######## DPDK kni module loaded ########\n");
return 0;
+
+out:
+#ifdef HAVE_SIMPLIFIED_PERNET_OPERATIONS
+ unregister_pernet_subsys(&kni_net_ops);
+#else
+ register_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
+ register_pernet_gen_subsys(&kni_net_id, &kni_net_ops);
+#endif
KNI_PRINT("####### 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)
{
- /* kni device can be opened by one user only, test and set bit */
- if (test_and_set_bit(KNI_DEV_IN_USE_BIT_NUM, &device_in_use))
+ 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;
- /* Create kernel thread for RX */
- kni_kthread = kthread_run(kni_thread, NULL, "kni_thread");
- if (IS_ERR(kni_kthread)) {
- KNI_ERR("Unable to create kernel threaed\n");
- return PTR_ERR(kni_kthread);
- }
+ /* Create kernel thread for single mode */
+ if (multiple_kthread_on == 0) {
+ KNI_PRINT("Single kernel thread for all KNI devices\n");
+ /* Create kernel thread for RX */
+ knet->kni_kthread = kthread_run(kni_thread_single, (void *)knet,
+ "kni_single");
+ if (IS_ERR(knet->kni_kthread)) {
+ KNI_ERR("Unable to create kernel threaed\n");
+ return PTR_ERR(knet->kni_kthread);
+ }
+ } else
+ KNI_PRINT("Multiple kernel thread mode enabled\n");
+ file->private_data = get_net(net);
KNI_PRINT("/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;
- KNI_PRINT("Stopping KNI thread...");
-
- /* Stop kernel thread */
- kthread_stop(kni_kthread);
- kni_kthread = NULL;
+ /* Stop kernel thread for single mode */
+ if (multiple_kthread_on == 0) {
+ /* Stop kernel thread */
+ kthread_stop(knet->kni_kthread);
+ knet->kni_kthread = NULL;
+ }
- down_write(&kni_list_lock);
- list_for_each_entry_safe(dev, n, &kni_list_head, list) {
- /* Call the remove part to restore pci dev */
- switch (dev->device_id) {
- #define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) case (dev):
- #include <rte_pci_dev_ids.h>
- igb_kni_remove(dev->pci_dev);
- break;
- #define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) case (dev):
- #include <rte_pci_dev_ids.h>
- ixgbe_kni_remove(dev->pci_dev);
- break;
- default:
- break;
+ 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;
}
- unregister_netdev(dev->net_dev);
- free_netdev(dev->net_dev);
+
+#ifdef RTE_KNI_VHOST
+ kni_vhost_backend_release(dev);
+#endif
+ kni_dev_remove(dev);
list_del(&dev->list);
}
- up_write(&kni_list_lock);
+ up_write(&knet->kni_list_lock);
/* Clear the bit of device in use */
- clear_bit(KNI_DEV_IN_USE_BIT_NUM, &device_in_use);
+ clear_bit(KNI_DEV_IN_USE_BIT_NUM, &knet->device_in_use);
+ put_net(net);
KNI_PRINT("/dev/kni closed\n");
return 0;
}
static int
-kni_thread(void *unused)
+kni_thread_single(void *data)
{
+ struct kni_net *knet = data;
int j;
- struct kni_dev *dev, *n;
+ struct kni_dev *dev;
- KNI_PRINT("Kernel thread for KNI started\n");
while (!kthread_should_stop()) {
- down_read(&kni_list_lock);
+ down_read(&knet->kni_list_lock);
for (j = 0; j < KNI_RX_LOOP_NUM; j++) {
- list_for_each_entry_safe(dev, n,
- &kni_list_head, list) {
+ list_for_each_entry(dev, &knet->kni_list_head, list) {
+#ifdef RTE_KNI_VHOST
+ kni_chk_vhost_rx(dev);
+#else
kni_net_rx(dev);
+#endif
kni_net_poll_resp(dev);
}
}
- up_read(&kni_list_lock);
+ up_read(&knet->kni_list_lock);
+#ifdef RTE_KNI_PREEMPT_DEFAULT
/* reschedule out for a while */
schedule_timeout_interruptible(usecs_to_jiffies( \
KNI_KTHREAD_RESCHEDULE_INTERVAL));
+#endif
}
- KNI_PRINT("Kernel thread for KNI stopped\n");
return 0;
}
static int
-kni_ioctl_create(unsigned int ioctl_num, unsigned long ioctl_param)
+kni_thread_multiple(void *param)
{
+ int j;
+ struct kni_dev *dev = (struct kni_dev *)param;
+
+ while (!kthread_should_stop()) {
+ for (j = 0; j < KNI_RX_LOOP_NUM; j++) {
+#ifdef RTE_KNI_VHOST
+ kni_chk_vhost_rx(dev);
+#else
+ kni_net_rx(dev);
+#endif
+ kni_net_poll_resp(dev);
+ }
+#ifdef RTE_KNI_PREEMPT_DEFAULT
+ schedule_timeout_interruptible(usecs_to_jiffies( \
+ KNI_KTHREAD_RESCHEDULE_INTERVAL));
+#endif
+ }
+
+ return 0;
+}
+
+static int
+kni_dev_remove(struct kni_dev *dev)
+{
+ if (!dev)
+ return -ENODEV;
+
+ switch (dev->device_id) {
+ #define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) case (dev):
+ #include <rte_pci_dev_ids.h>
+ igb_kni_remove(dev->pci_dev);
+ break;
+ #define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) case (dev):
+ #include <rte_pci_dev_ids.h>
+ ixgbe_kni_remove(dev->pci_dev);
+ break;
+ default:
+ break;
+ }
+
+ if (dev->net_dev) {
+ unregister_netdev(dev->net_dev);
+ free_netdev(dev->net_dev);
+ }
+
+ return 0;
+}
+
+static int
+kni_check_param(struct kni_dev *kni, struct rte_kni_device_info *dev)
+{
+ if (!kni || !dev)
+ return -1;
+
+ /* Check if network name has been used */
+ if (!strncmp(kni->name, dev->name, RTE_KNI_NAMESIZE)) {
+ KNI_ERR("KNI name %s duplicated\n", dev->name);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+kni_ioctl_create(struct net *net,
+ unsigned int ioctl_num, unsigned long ioctl_param)
+{
+ struct kni_net *knet = net_generic(net, kni_net_id);
int ret;
struct rte_kni_device_info dev_info;
struct pci_dev *pci = NULL;
return -EIO;
}
+ /**
+ * Check if the cpu core id is valid for binding,
+ * for multiple kernel thread mode.
+ */
+ if (multiple_kthread_on && dev_info.force_bind &&
+ !cpu_online(dev_info.core_id)) {
+ KNI_ERR("cpu %u is not online\n", dev_info.core_id);
+ return -EINVAL;
+ }
+
/* Check if it has been created */
- down_read(&kni_list_lock);
- list_for_each_entry_safe(dev, n, &kni_list_head, list) {
- if (dev->port_id == dev_info.port_id) {
- up_read(&kni_list_lock);
- KNI_ERR("Port %d has already been created\n",
- dev_info.port_id);
+ down_read(&knet->kni_list_lock);
+ list_for_each_entry_safe(dev, n, &knet->kni_list_head, list) {
+ if (kni_check_param(dev, &dev_info) < 0) {
+ up_read(&knet->kni_list_lock);
return -EINVAL;
}
}
- up_read(&kni_list_lock);
+ up_read(&knet->kni_list_lock);
net_dev = alloc_netdev(sizeof(struct kni_dev), dev_info.name,
+#ifdef NET_NAME_UNKNOWN
+ NET_NAME_UNKNOWN,
+#endif
kni_net_init);
if (net_dev == NULL) {
KNI_ERR("error allocating device \"%s\"\n", dev_info.name);
return -EBUSY;
}
+ dev_net_set(net_dev, net);
+
kni = netdev_priv(net_dev);
kni->net_dev = net_dev;
- kni->port_id = dev_info.port_id;
+ kni->group_id = dev_info.group_id;
+ kni->core_id = dev_info.core_id;
+ strncpy(kni->name, dev_info.name, RTE_KNI_NAMESIZE);
/* Translate user space info into kernel space info */
kni->tx_q = phys_to_virt(dev_info.tx_phys);
kni->mbuf_kva = phys_to_virt(dev_info.mbuf_phys);
kni->mbuf_va = dev_info.mbuf_va;
+#ifdef RTE_KNI_VHOST
+ kni->vhost_queue = NULL;
+ kni->vq_status = BE_STOP;
+#endif
kni->mbuf_size = dev_info.mbuf_size;
- KNI_PRINT("tx_phys: 0x%016llx, tx_q addr: 0x%p\n",
- (unsigned long long) dev_info.tx_phys, kni->tx_q);
- KNI_PRINT("rx_phys: 0x%016llx, rx_q addr: 0x%p\n",
- (unsigned long long) dev_info.rx_phys, kni->rx_q);
- KNI_PRINT("alloc_phys: 0x%016llx, alloc_q addr: 0x%p\n",
- (unsigned long long) dev_info.alloc_phys, kni->alloc_q);
- KNI_PRINT("free_phys: 0x%016llx, free_q addr: 0x%p\n",
- (unsigned long long) dev_info.free_phys, kni->free_q);
- KNI_PRINT("req_phys: 0x%016llx, req_q addr: 0x%p\n",
- (unsigned long long) dev_info.req_phys, kni->req_q);
- KNI_PRINT("resp_phys: 0x%016llx, resp_q addr: 0x%p\n",
- (unsigned long long) dev_info.resp_phys, kni->resp_q);
- KNI_PRINT("mbuf_phys: 0x%016llx, mbuf_kva: 0x%p\n",
- (unsigned long long) dev_info.mbuf_phys, kni->mbuf_kva);
- KNI_PRINT("mbuf_va: 0x%p\n", dev_info.mbuf_va);
- KNI_PRINT("mbuf_size: %u\n", kni->mbuf_size);
-
- KNI_DBG("PCI: %02x:%02x.%02x %04x:%04x\n", dev_info.bus, dev_info.devid,
- dev_info.function, dev_info.vendor_id, dev_info.device_id);
+ KNI_PRINT("tx_phys: 0x%016llx, tx_q addr: 0x%p\n",
+ (unsigned long long) dev_info.tx_phys, kni->tx_q);
+ KNI_PRINT("rx_phys: 0x%016llx, rx_q addr: 0x%p\n",
+ (unsigned long long) dev_info.rx_phys, kni->rx_q);
+ KNI_PRINT("alloc_phys: 0x%016llx, alloc_q addr: 0x%p\n",
+ (unsigned long long) dev_info.alloc_phys, kni->alloc_q);
+ KNI_PRINT("free_phys: 0x%016llx, free_q addr: 0x%p\n",
+ (unsigned long long) dev_info.free_phys, kni->free_q);
+ KNI_PRINT("req_phys: 0x%016llx, req_q addr: 0x%p\n",
+ (unsigned long long) dev_info.req_phys, kni->req_q);
+ KNI_PRINT("resp_phys: 0x%016llx, resp_q addr: 0x%p\n",
+ (unsigned long long) dev_info.resp_phys, kni->resp_q);
+ KNI_PRINT("mbuf_phys: 0x%016llx, mbuf_kva: 0x%p\n",
+ (unsigned long long) dev_info.mbuf_phys, kni->mbuf_kva);
+ KNI_PRINT("mbuf_va: 0x%p\n", dev_info.mbuf_va);
+ KNI_PRINT("mbuf_size: %u\n", kni->mbuf_size);
+
+ KNI_DBG("PCI: %02x:%02x.%02x %04x:%04x\n",
+ dev_info.bus,
+ dev_info.devid,
+ dev_info.function,
+ dev_info.vendor_id,
+ dev_info.device_id);
pci = pci_get_device(dev_info.vendor_id, dev_info.device_id, NULL);
/* Support Ethtool */
while (pci) {
- KNI_PRINT("pci_bus: %02x:%02x:%02x \n", pci->bus->number,
- PCI_SLOT(pci->devfn), PCI_FUNC(pci->devfn));
+ KNI_PRINT("pci_bus: %02x:%02x:%02x \n",
+ pci->bus->number,
+ PCI_SLOT(pci->devfn),
+ PCI_FUNC(pci->devfn));
if ((pci->bus->number == dev_info.bus) &&
(PCI_SLOT(pci->devfn) == dev_info.devid) &&
if (pci)
pci_dev_put(pci);
+ if (kni->lad_dev)
+ memcpy(net_dev->dev_addr, kni->lad_dev->dev_addr, ETH_ALEN);
+ else
+ /*
+ * Generate random mac address. eth_random_addr() is the newer
+ * version of generating mac address in linux kernel.
+ */
+ random_ether_addr(net_dev->dev_addr);
+
ret = register_netdev(net_dev);
if (ret) {
KNI_ERR("error %i registering device \"%s\"\n",
ret, dev_info.name);
- free_netdev(net_dev);
+ kni_dev_remove(kni);
return -ENODEV;
}
- down_write(&kni_list_lock);
- list_add(&kni->list, &kni_list_head);
- up_write(&kni_list_lock);
- printk(KERN_INFO "KNI: Successfully create kni for port %d\n",
- dev_info.port_id);
+#ifdef RTE_KNI_VHOST
+ kni_vhost_init(kni);
+#endif
+
+ /**
+ * Create a new kernel thread for multiple mode, set its core affinity,
+ * and finally wake it up.
+ */
+ if (multiple_kthread_on) {
+ kni->pthread = kthread_create(kni_thread_multiple,
+ (void *)kni,
+ "kni_%s", kni->name);
+ if (IS_ERR(kni->pthread)) {
+ kni_dev_remove(kni);
+ return -ECANCELED;
+ }
+ if (dev_info.force_bind)
+ kthread_bind(kni->pthread, kni->core_id);
+ wake_up_process(kni->pthread);
+ }
+
+ down_write(&knet->kni_list_lock);
+ list_add(&kni->list, &knet->kni_list_head);
+ up_write(&knet->kni_list_lock);
return 0;
}
static int
-kni_ioctl_release(unsigned int ioctl_num, unsigned long ioctl_param)
+kni_ioctl_release(struct net *net,
+ unsigned int ioctl_num, unsigned long ioctl_param)
{
+ struct kni_net *knet = net_generic(net, kni_net_id);
int ret = -EINVAL;
- uint8_t port_id;
struct kni_dev *dev, *n;
+ struct rte_kni_device_info dev_info;
- if (_IOC_SIZE(ioctl_num) > sizeof(port_id))
+ if (_IOC_SIZE(ioctl_num) > sizeof(dev_info))
return -EINVAL;
- ret = copy_from_user(&port_id, (void *)ioctl_param, sizeof(port_id));
+ ret = copy_from_user(&dev_info, (void *)ioctl_param, sizeof(dev_info));
if (ret) {
KNI_ERR("copy_from_user in kni_ioctl_release");
return -EIO;
}
- down_write(&kni_list_lock);
- list_for_each_entry_safe(dev, n, &kni_list_head, list) {
- if (dev->port_id != port_id)
+ /* Release the network device according to its name */
+ if (strlen(dev_info.name) == 0)
+ return ret;
+
+ down_write(&knet->kni_list_lock);
+ list_for_each_entry_safe(dev, n, &knet->kni_list_head, list) {
+ if (strncmp(dev->name, dev_info.name, RTE_KNI_NAMESIZE) != 0)
continue;
- switch (dev->device_id) {
- #define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) case (dev):
- #include <rte_pci_dev_ids.h>
- igb_kni_remove(dev->pci_dev);
- break;
- #define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) case (dev):
- #include <rte_pci_dev_ids.h>
- ixgbe_kni_remove(dev->pci_dev);
- break;
- default:
- break;
+ if (multiple_kthread_on && dev->pthread != NULL) {
+ kthread_stop(dev->pthread);
+ dev->pthread = NULL;
}
- unregister_netdev(dev->net_dev);
- free_netdev(dev->net_dev);
+
+#ifdef RTE_KNI_VHOST
+ kni_vhost_backend_release(dev);
+#endif
+ kni_dev_remove(dev);
list_del(&dev->list);
ret = 0;
break;
}
- up_write(&kni_list_lock);
- printk(KERN_INFO "KNI: %s release kni for port %d\n",
- (ret == 0 ? "Successfully" : "Unsuccessfully"), port_id);
+ up_write(&knet->kni_list_lock);
+ printk(KERN_INFO "KNI: %s release kni named %s\n",
+ (ret == 0 ? "Successfully" : "Unsuccessfully"), dev_info.name);
return ret;
}
unsigned long ioctl_param)
{
int ret = -EINVAL;
+ struct net *net = current->nsproxy->net_ns;
- KNI_DBG("IOCTL num=0x%0x param=0x%0lx \n", ioctl_num, ioctl_param);
+ KNI_DBG("IOCTL num=0x%0x param=0x%0lx\n", ioctl_num, ioctl_param);
/*
* Switch according to the ioctl called
/* For test only, not used */
break;
case _IOC_NR(RTE_KNI_IOCTL_CREATE):
- ret = kni_ioctl_create(ioctl_num, ioctl_param);
+ ret = kni_ioctl_create(net, ioctl_num, ioctl_param);
break;
case _IOC_NR(RTE_KNI_IOCTL_RELEASE):
- ret = kni_ioctl_release(ioctl_num, ioctl_param);
+ ret = kni_ioctl_release(net, ioctl_num, ioctl_param);
break;
default:
- KNI_DBG("IOCTL default \n");
+ KNI_DBG("IOCTL default\n");
break;
}
"\n"
);
+module_param(kthread_mode, charp, S_IRUGO);
+MODULE_PARM_DESC(kthread_mode,
+"Kernel thread mode (default=single):\n"
+" single Single kernel thread mode enabled.\n"
+" multiple Multiple kernel thread mode enabled.\n"
+"\n"
+);
git.droids-corp.org / dpdk.git / blobdiff