/*-
* GPL LICENSE SUMMARY
- *
+ *
* 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/if_tun.h>
#include <linux/version.h>
-#include "kni_dev.h"
+#include "kni_dev.h"
#include "kni_fifo.h"
#define RX_BURST_SZ 4
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,7,0)
extern struct file*
-sock_alloc_file(struct socket *sock,
+sock_alloc_file(struct socket *sock,
int flags, const char *dname);
extern int get_unused_fd_flags(unsigned flags);
};
static inline int
-kni_vhost_net_tx(struct kni_dev *kni, struct iovec *iov,
+kni_vhost_net_tx(struct kni_dev *kni, struct iovec *iov,
unsigned offset, unsigned len)
{
struct rte_kni_mbuf *pkt_kva = NULL;
struct rte_kni_mbuf *pkt_va = NULL;
int ret;
- KNI_DBG_TX("tx offset=%d, len=%d, iovlen=%d\n",
+ KNI_DBG_TX("tx offset=%d, len=%d, iovlen=%d\n",
offset, len, (int)iov->iov_len);
/**
}
static inline int
-kni_vhost_net_rx(struct kni_dev *kni, struct iovec *iov,
+kni_vhost_net_rx(struct kni_dev *kni, struct iovec *iov,
unsigned offset, unsigned len)
{
uint32_t pkt_len;
return 0;
kva = (struct rte_kni_mbuf*)skb->data;
-
+
/* free skb to cache */
skb->data = NULL;
if (unlikely(1 != kni_fifo_put(q->fifo, (void **)&skb, 1)))
if (unlikely(pkt_len > len))
goto drop;
- KNI_DBG_RX("rx offset=%d, len=%d, pkt_len=%d, iovlen=%d\n",
+ KNI_DBG_RX("rx offset=%d, len=%d, pkt_len=%d, iovlen=%d\n",
offset, len, pkt_len, (int)iov->iov_len);
- data_kva = kva->data - kni->mbuf_va + kni->mbuf_kva;
+ data_kva = kva->data - kni->mbuf_va + kni->mbuf_kva;
if (unlikely(memcpy_toiovecend(iov, data_kva, offset, pkt_len)))
goto drop;
/* Update statistics */
kni->stats.rx_bytes += pkt_len;
- kni->stats.rx_packets++;
+ kni->stats.rx_packets++;
/* enqueue mbufs into free_q */
va = (void*)kva - kni->mbuf_kva + kni->mbuf_va;
return 0;
}
-static unsigned int
+static unsigned int
kni_sock_poll(struct file *file, struct socket *sock, poll_table * wait)
{
- struct kni_vhost_queue *q =
+ struct kni_vhost_queue *q =
container_of(sock->sk, struct kni_vhost_queue, sk);
struct kni_dev *kni;
unsigned int mask = 0;
return POLLERR;
kni = q->kni;
- KNI_DBG("start kni_poll on group %d, wq 0x%16llx\n",
+ KNI_DBG("start kni_poll on group %d, wq 0x%16llx\n",
kni->group_id, (uint64_t)sock->wq);
poll_wait(file, &sock->wq->wait, wait);
}
static inline void
-kni_vhost_enqueue(struct kni_dev *kni, struct kni_vhost_queue *q,
+kni_vhost_enqueue(struct kni_dev *kni, struct kni_vhost_queue *q,
struct sk_buff *skb, struct rte_kni_mbuf *va)
{
struct rte_kni_mbuf *kva;
- kva = (void *)(va) - kni->mbuf_va + kni->mbuf_kva;
+ kva = (void *)(va) - kni->mbuf_va + kni->mbuf_kva;
(skb)->data = (unsigned char*)kva;
(skb)->len = kva->data_len;
- skb_queue_tail(&q->sk.sk_receive_queue, skb);
+ skb_queue_tail(&q->sk.sk_receive_queue, skb);
}
-static inline void
-kni_vhost_enqueue_burst(struct kni_dev *kni, struct kni_vhost_queue *q,
+static inline void
+kni_vhost_enqueue_burst(struct kni_dev *kni, struct kni_vhost_queue *q,
struct sk_buff **skb, struct rte_kni_mbuf **va)
{
int i;
kni_vhost_enqueue(kni, q, *skb, *va);
}
-int
+int
kni_chk_vhost_rx(struct kni_dev *kni)
{
struct kni_vhost_queue *q = kni->vhost_queue;
unsigned nb_burst, nb_backlog, i;
struct sk_buff *skb[RX_BURST_SZ];
struct rte_kni_mbuf *va[RX_BURST_SZ];
-
+
if (unlikely(BE_STOP & kni->vq_status)) {
kni->vq_status |= BE_FINISH;
return 0;
nb_skb = kni_fifo_count(q->fifo);
nb_mbuf = kni_fifo_count(kni->rx_q);
-
+
nb_in = min(nb_mbuf, nb_skb);
nb_in = min(nb_in, (unsigned)RX_BURST_SZ);
nb_burst = (nb_in & ~BURST_MASK);
nb_backlog = (nb_in & BURST_MASK);
-
+
/* enqueue skb_queue per BURST_SIZE bulk */
if (0 != nb_burst) {
if (unlikely(RX_BURST_SZ != kni_fifo_get(
- kni->rx_q, (void **)&va,
+ kni->rx_q, (void **)&va,
RX_BURST_SZ)))
goto except;
if (unlikely(RX_BURST_SZ != kni_fifo_get(
- q->fifo, (void **)&skb,
+ q->fifo, (void **)&skb,
RX_BURST_SZ)))
goto except;
}
/* Ondemand wake up */
- if ((nb_in == RX_BURST_SZ) || (nb_skb == 0) ||
- ((nb_mbuf < RX_BURST_SZ) && (nb_mbuf != 0))) {
- wake_up_interruptible_poll(sk_sleep(&q->sk),
+ if ((nb_in == RX_BURST_SZ) || (nb_skb == 0) ||
+ ((nb_mbuf < RX_BURST_SZ) && (nb_mbuf != 0))) {
+ wake_up_interruptible_poll(sk_sleep(&q->sk),
POLLIN | POLLRDNORM | POLLRDBAND);
- KNI_DBG_RX("RX CHK KICK nb_mbuf %d, nb_skb %d, nb_in %d\n",
+ KNI_DBG_RX("RX CHK KICK nb_mbuf %d, nb_skb %d, nb_in %d\n",
nb_mbuf, nb_skb, nb_in);
}
return 0;
}
-static int
+static int
kni_sock_sndmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *m, size_t total_len)
{
- struct kni_vhost_queue *q =
+ struct kni_vhost_queue *q =
container_of(sock->sk, struct kni_vhost_queue, sk);
int vnet_hdr_len = 0;
unsigned long len = total_len;
if (unlikely(q == NULL || q->kni == NULL))
return 0;
- KNI_DBG_TX("kni_sndmsg len %ld, flags 0x%08x, nb_iov %d\n",
+ KNI_DBG_TX("kni_sndmsg len %ld, flags 0x%08x, nb_iov %d\n",
len, q->flags, (int)m->msg_iovlen);
#ifdef RTE_KNI_VHOST_VNET_HDR_EN
return kni_vhost_net_tx(q->kni, m->msg_iov, vnet_hdr_len, len);
}
-static int
+static int
kni_sock_rcvmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *m, size_t len, int flags)
{
int vnet_hdr_len = 0;
- int pkt_len = 0;
- struct kni_vhost_queue *q =
+ int pkt_len = 0;
+ struct kni_vhost_queue *q =
container_of(sock->sk, struct kni_vhost_queue, sk);
- static struct virtio_net_hdr
+ static struct virtio_net_hdr
__attribute__ ((unused)) vnet_hdr = {
.flags = 0,
.gso_type = VIRTIO_NET_HDR_GSO_NONE
}
#endif
- if (unlikely(0 == (pkt_len = kni_vhost_net_rx(q->kni,
+ if (unlikely(0 == (pkt_len = kni_vhost_net_rx(q->kni,
m->msg_iov, vnet_hdr_len, len))))
return 0;
#ifdef RTE_KNI_VHOST_VNET_HDR_EN
/* no need to copy hdr when no pkt received */
- if (unlikely(memcpy_toiovecend(m->msg_iov,
+ if (unlikely(memcpy_toiovecend(m->msg_iov,
(void *)&vnet_hdr, 0, vnet_hdr_len)))
return -EFAULT;
#endif
- KNI_DBG_RX("kni_rcvmsg expect_len %ld, flags 0x%08x, pkt_len %d\n",
+ KNI_DBG_RX("kni_rcvmsg expect_len %ld, flags 0x%08x, pkt_len %d\n",
(unsigned long)len, q->flags, pkt_len);
- return (pkt_len + vnet_hdr_len);
+ return (pkt_len + vnet_hdr_len);
}
/* dummy tap like ioctl */
-static int
+static int
kni_sock_ioctl(struct socket *sock, unsigned int cmd,
unsigned long arg)
{
void __user *argp = (void __user *)arg;
struct ifreq __user *ifr = argp;
unsigned int __user *up = argp;
- struct kni_vhost_queue *q =
+ struct kni_vhost_queue *q =
container_of(sock->sk, struct kni_vhost_queue, sk);
struct kni_dev *kni;
unsigned int u;
#ifdef RTE_KNI_VHOST_VNET_HDR_EN
u |= IFF_VNET_HDR;
#endif
- if (put_user(u, up))
+ if (put_user(u, up))
return -EFAULT;
return 0;
}
}
-static int
+static int
kni_sock_compat_ioctl(struct socket *sock, unsigned int cmd,
unsigned long arg)
{
}while(0) \
-static int
+static int
kni_sock_release(struct socket *sock)
{
- struct kni_vhost_queue *q =
+ struct kni_vhost_queue *q =
container_of(sock->sk, struct kni_vhost_queue, sk);
struct kni_dev *kni;
sock->sk = NULL;
sock_put(&q->sk);
-
+
KNI_DBG("dummy sock release done\n");
return 0;
}
-int
+int
kni_sock_getname (struct socket *sock,
struct sockaddr *addr,
int *sockaddr_len, int peer)
.compat_ioctl = kni_sock_compat_ioctl,
};
-static void
+static void
kni_sk_write_space(struct sock *sk)
{
wait_queue_head_t *wqueue;
- if (!sock_writeable(sk) ||
- !test_and_clear_bit(SOCK_ASYNC_NOSPACE,
+ if (!sock_writeable(sk) ||
+ !test_and_clear_bit(SOCK_ASYNC_NOSPACE,
&sk->sk_socket->flags))
return;
wqueue = sk_sleep(sk);
wqueue, POLLOUT | POLLWRNORM | POLLWRBAND);
}
-static void
+static void
kni_sk_destruct(struct sock *sk)
{
- struct kni_vhost_queue *q =
+ struct kni_vhost_queue *q =
container_of(sk, struct kni_vhost_queue, sk);
if (!q)
}
}
-static int
+static int
kni_vhost_backend_init(struct kni_dev *kni)
{
struct kni_vhost_queue *q;
/* cache init */
q->cache = (struct sk_buff*)
- kzalloc(RTE_KNI_VHOST_MAX_CACHE_SIZE * sizeof(struct sk_buff),
+ kzalloc(RTE_KNI_VHOST_MAX_CACHE_SIZE * sizeof(struct sk_buff),
GFP_KERNEL);
if (!q->cache)
goto free_fd;
kni_fifo_put(fifo, (void**)&elem, 1);
}
q->fifo = fifo;
-
+
/* store sockfd in vhost_queue */
q->sockfd = sockfd;
#ifdef RTE_KNI_VHOST_VNET_HDR_EN
q->flags |= IFF_VNET_HDR;
#endif
-
+
/* bind kni_dev with vhost_queue */
q->kni = kni;
kni->vhost_queue = q;
-
+
wmb();
kni->vq_status = BE_START;
KNI_DBG("backend init sockfd=%d, sock->wq=0x%16llx,"
- "sk->sk_wq=0x%16llx",
- q->sockfd, (uint64_t)q->sock->wq,
+ "sk->sk_wq=0x%16llx",
+ q->sockfd, (uint64_t)q->sock->wq,
(uint64_t)q->sk.sk_wq);
return 0;
if (0 != strict_strtoul(buf, 0, &en))
return -EINVAL;
- if (en)
+ if (en)
err = kni_vhost_backend_init(kni);
return err ? err : count;
.attrs = dev_attrs,
};
-int
+int
kni_vhost_backend_release(struct kni_dev *kni)
{
- struct kni_vhost_queue *q = kni->vhost_queue;
-
+ struct kni_vhost_queue *q = kni->vhost_queue;
+
if (q == NULL)
return 0;
return 0;
}
-int
+int
kni_vhost_init(struct kni_dev *kni)
{
struct net_device *dev = kni->net_dev;
git.droids-corp.org / dpdk.git / blobdiff