1 files changed, 0 insertions, 663 deletions

diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c
deleted file mode 100644
index 01574ecf..00000000
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ /dev/null
@@ -1,663 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright(c) 2010-2014 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/mutex.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"
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Intel Corporation");
-MODULE_DESCRIPTION("Kernel Module for managing kni devices");
-
-#define KNI_RX_LOOP_NUM 1000
-
-#define KNI_MAX_DEVICES 32
-
-extern const struct pci_device_id ixgbe_pci_tbl[];
-extern const struct pci_device_id igb_pci_tbl[];
-
-/* loopback mode */
-static char *lo_mode;
-
-/* Kernel thread mode */
-static char *kthread_mode;
-static uint32_t multiple_kthread_on;
-
-#define KNI_DEV_IN_USE_BIT_NUM 0 /* Bit number for device in use */
-
-static int kni_net_id;
-
-struct kni_net {
-	unsigned long device_in_use; /* device in use flag */
-	struct mutex kni_kthread_lock;
-	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);
-
-	memset(knet, 0, sizeof(*knet));
-#else
-	struct kni_net *knet;
-	int ret;
-
-	knet = kzalloc(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);
-
-	mutex_init(&knet->kni_kthread_lock);
-
-	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
-}
-
-static void __net_exit
-kni_exit_net(struct net *net)
-{
-	struct kni_net *knet __maybe_unused;
-
-	knet = net_generic(net, kni_net_id);
-	mutex_destroy(&knet->kni_kthread_lock);
-
-#ifndef HAVE_SIMPLIFIED_PERNET_OPERATIONS
-	kfree(knet);
-#endif
-}
-
-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
-kni_thread_single(void *data)
-{
-	struct kni_net *knet = data;
-	int j;
-	struct kni_dev *dev;
-
-	while (!kthread_should_stop()) {
-		down_read(&knet->kni_list_lock);
-		for (j = 0; j < KNI_RX_LOOP_NUM; j++) {
-			list_for_each_entry(dev, &knet->kni_list_head, list) {
-				kni_net_rx(dev);
-				kni_net_poll_resp(dev);
-			}
-		}
-		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
-	}
-
-	return 0;
-}
-
-static int
-kni_thread_multiple(void *param)
-{
-	int j;
-	struct kni_dev *dev = param;
-
-	while (!kthread_should_stop()) {
-		for (j = 0; j < KNI_RX_LOOP_NUM; j++) {
-			kni_net_rx(dev);
-			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_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)
-{
-	if (!dev)
-		return -ENODEV;
-
-#ifdef RTE_KNI_KMOD_ETHTOOL
-	if (dev->pci_dev) {
-		if (pci_match_id(ixgbe_pci_tbl, dev->pci_dev))
-			ixgbe_kni_remove(dev->pci_dev);
-		else if (pci_match_id(igb_pci_tbl, dev->pci_dev))
-			igb_kni_remove(dev->pci_dev);
-	}
-#endif
-
-	if (dev->net_dev) {
-		unregister_netdev(dev->net_dev);
-		free_netdev(dev->net_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;
-		}
-
-		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)
-{
-	if (!kni || !dev)
-		return -1;
-
-	/* Check if network name has been used */
-	if (!strncmp(kni->name, dev->name, RTE_KNI_NAMESIZE)) {
-		pr_err("KNI name %s duplicated\n", dev->name);
-		return -1;
-	}
-
-	return 0;
-}
-
-static int
-kni_run_thread(struct kni_net *knet, struct kni_dev *kni, uint8_t force_bind)
-{
-	/**
-	 * 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 (force_bind)
-			kthread_bind(kni->pthread, kni->core_id);
-		wake_up_process(kni->pthread);
-	} else {
-		mutex_lock(&knet->kni_kthread_lock);
-
-		if (knet->kni_kthread == NULL) {
-			knet->kni_kthread = kthread_create(kni_thread_single,
-				(void *)knet, "kni_single");
-			if (IS_ERR(knet->kni_kthread)) {
-				mutex_unlock(&knet->kni_kthread_lock);
-				kni_dev_remove(kni);
-				return -ECANCELED;
-			}
-
-			if (force_bind)
-				kthread_bind(knet->kni_kthread, kni->core_id);
-			wake_up_process(knet->kni_kthread);
-		}
-
-		mutex_unlock(&knet->kni_kthread_lock);
-	}
-
-	return 0;
-}
-
-static int
-kni_ioctl_create(struct net *net, uint32_t 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 net_device *net_dev = NULL;
-	struct kni_dev *kni, *dev, *n;
-#ifdef RTE_KNI_KMOD_ETHTOOL
-	struct pci_dev *found_pci = NULL;
-	struct net_device *lad_dev = NULL;
-	struct pci_dev *pci = NULL;
-#endif
-
-	pr_info("Creating kni...\n");
-	/* Check the buffer size, to avoid warning */
-	if (_IOC_SIZE(ioctl_num) > sizeof(dev_info))
-		return -EINVAL;
-
-	/* Copy kni info from user space */
-	ret = copy_from_user(&dev_info, (void *)ioctl_param, sizeof(dev_info));
-	if (ret) {
-		pr_err("copy_from_user in kni_ioctl_create");
-		return -EIO;
-	}
-
-	/* Check if name is zero-ended */
-	if (strnlen(dev_info.name, sizeof(dev_info.name)) == sizeof(dev_info.name)) {
-		pr_err("kni.name not zero-terminated");
-		return -EINVAL;
-	}
-
-	/**
-	 * Check if the cpu core id is valid for binding.
-	 */
-	if (dev_info.force_bind && !cpu_online(dev_info.core_id)) {
-		pr_err("cpu %u is not online\n", dev_info.core_id);
-		return -EINVAL;
-	}
-
-	/* Check if it has been created */
-	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(&knet->kni_list_lock);
-
-	net_dev = alloc_netdev(sizeof(struct kni_dev), dev_info.name,
-#ifdef NET_NAME_USER
-							NET_NAME_USER,
-#endif
-							kni_net_init);
-	if (net_dev == NULL) {
-		pr_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->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->rx_q = phys_to_virt(dev_info.rx_phys);
-	kni->alloc_q = phys_to_virt(dev_info.alloc_phys);
-	kni->free_q = phys_to_virt(dev_info.free_phys);
-
-	kni->req_q = phys_to_virt(dev_info.req_phys);
-	kni->resp_q = phys_to_virt(dev_info.resp_phys);
-	kni->sync_va = dev_info.sync_va;
-	kni->sync_kva = phys_to_virt(dev_info.sync_phys);
-
-	kni->mbuf_size = dev_info.mbuf_size;
-
-	pr_debug("tx_phys:      0x%016llx, tx_q addr:      0x%p\n",
-		(unsigned long long) dev_info.tx_phys, kni->tx_q);
-	pr_debug("rx_phys:      0x%016llx, rx_q addr:      0x%p\n",
-		(unsigned long long) dev_info.rx_phys, kni->rx_q);
-	pr_debug("alloc_phys:   0x%016llx, alloc_q addr:   0x%p\n",
-		(unsigned long long) dev_info.alloc_phys, kni->alloc_q);
-	pr_debug("free_phys:    0x%016llx, free_q addr:    0x%p\n",
-		(unsigned long long) dev_info.free_phys, kni->free_q);
-	pr_debug("req_phys:     0x%016llx, req_q addr:     0x%p\n",
-		(unsigned long long) dev_info.req_phys, kni->req_q);
-	pr_debug("resp_phys:    0x%016llx, resp_q addr:    0x%p\n",
-		(unsigned long long) dev_info.resp_phys, kni->resp_q);
-	pr_debug("mbuf_size:    %u\n", kni->mbuf_size);
-
-	pr_debug("PCI: %02x:%02x.%02x %04x:%04x\n",
-					dev_info.bus,
-					dev_info.devid,
-					dev_info.function,
-					dev_info.vendor_id,
-					dev_info.device_id);
-#ifdef RTE_KNI_KMOD_ETHTOOL
-	pci = pci_get_device(dev_info.vendor_id, dev_info.device_id, NULL);
-
-	/* Support Ethtool */
-	while (pci) {
-		pr_debug("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) &&
-			(PCI_FUNC(pci->devfn) == dev_info.function)) {
-			found_pci = pci;
-
-			if (pci_match_id(ixgbe_pci_tbl, found_pci))
-				ret = ixgbe_kni_probe(found_pci, &lad_dev);
-			else if (pci_match_id(igb_pci_tbl, found_pci))
-				ret = igb_kni_probe(found_pci, &lad_dev);
-			else
-				ret = -1;
-
-			pr_debug("PCI found: pci=0x%p, lad_dev=0x%p\n",
-							pci, lad_dev);
-			if (ret == 0) {
-				kni->lad_dev = lad_dev;
-				kni_set_ethtool_ops(kni->net_dev);
-			} else {
-				pr_err("Device not supported by ethtool");
-				kni->lad_dev = NULL;
-			}
-
-			kni->pci_dev = found_pci;
-			kni->device_id = dev_info.device_id;
-			break;
-		}
-		pci = pci_get_device(dev_info.vendor_id,
-				dev_info.device_id, pci);
-	}
-	if (pci)
-		pci_dev_put(pci);
-#endif
-
-	if (kni->lad_dev)
-		ether_addr_copy(net_dev->dev_addr, kni->lad_dev->dev_addr);
-	else {
-		/* if user has provided a valid mac address */
-		if (is_valid_ether_addr((unsigned char *)(dev_info.mac_addr)))
-			memcpy(net_dev->dev_addr, dev_info.mac_addr, ETH_ALEN);
-		else
-			/*
-			 * Generate random mac address. eth_random_addr() is the
-			 * newer version of generating mac address in kernel.
-			 */
-			random_ether_addr(net_dev->dev_addr);
-	}
-
-	if (dev_info.mtu)
-		net_dev->mtu = dev_info.mtu;
-
-	ret = register_netdev(net_dev);
-	if (ret) {
-		pr_err("error %i registering device \"%s\"\n",
-					ret, dev_info.name);
-		kni->net_dev = NULL;
-		kni_dev_remove(kni);
-		free_netdev(net_dev);
-		return -ENODEV;
-	}
-
-	ret = kni_run_thread(knet, kni, dev_info.force_bind);
-	if (ret != 0)
-		return ret;
-
-	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(struct net *net, uint32_t ioctl_num,
-		unsigned long ioctl_param)
-{
-	struct kni_net *knet = net_generic(net, kni_net_id);
-	int ret = -EINVAL;
-	struct kni_dev *dev, *n;
-	struct rte_kni_device_info dev_info;
-
-	if (_IOC_SIZE(ioctl_num) > sizeof(dev_info))
-		return -EINVAL;
-
-	ret = copy_from_user(&dev_info, (void *)ioctl_param, sizeof(dev_info));
-	if (ret) {
-		pr_err("copy_from_user in kni_ioctl_release");
-		return -EIO;
-	}
-
-	/* 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;
-
-		if (multiple_kthread_on && dev->pthread != NULL) {
-			kthread_stop(dev->pthread);
-			dev->pthread = NULL;
-		}
-
-		kni_dev_remove(dev);
-		list_del(&dev->list);
-		ret = 0;
-		break;
-	}
-	up_write(&knet->kni_list_lock);
-	pr_info("%s release kni named %s\n",
-		(ret == 0 ? "Successfully" : "Unsuccessfully"), dev_info.name);
-
-	return ret;
-}
-
-static int
-kni_ioctl(struct inode *inode, uint32_t ioctl_num, unsigned long ioctl_param)
-{
-	int ret = -EINVAL;
-	struct net *net = current->nsproxy->net_ns;
-
-	pr_debug("IOCTL num=0x%0x param=0x%0lx\n", ioctl_num, ioctl_param);
-
-	/*
-	 * Switch according to the ioctl called
-	 */
-	switch (_IOC_NR(ioctl_num)) {
-	case _IOC_NR(RTE_KNI_IOCTL_TEST):
-		/* For test only, not used */
-		break;
-	case _IOC_NR(RTE_KNI_IOCTL_CREATE):
-		ret = kni_ioctl_create(net, ioctl_num, ioctl_param);
-		break;
-	case _IOC_NR(RTE_KNI_IOCTL_RELEASE):
-		ret = kni_ioctl_release(net, ioctl_num, ioctl_param);
-		break;
-	default:
-		pr_debug("IOCTL default\n");
-		break;
-	}
-
-	return ret;
-}
-
-static int
-kni_compat_ioctl(struct inode *inode, uint32_t ioctl_num,
-		unsigned long ioctl_param)
-{
-	/* 32 bits app on 64 bits OS to be supported later */
-	pr_debug("Not implemented.\n");
-
-	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;
-
-	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);
-
-	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
-}
-
-module_init(kni_init);
-module_exit(kni_exit);
-
-module_param(lo_mode, charp, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(lo_mode,
-"KNI loopback mode (default=lo_mode_none):\n"
-"    lo_mode_none        Kernel loopback disabled\n"
-"    lo_mode_fifo        Enable kernel loopback with fifo\n"
-"    lo_mode_fifo_skb    Enable kernel loopback with fifo and skb buffer\n"
-"\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"
-);