[PATCH v2 21/31] kvm tools: Introduce uip_init() for uip

[Asias He <asias.hejun@xxxxxxxxx>]

- Initialize TCP/UDP socket list, ethernet buffer list.

- Allocate memory for ethernet buffer.

Signed-off-by: Asias He <asias.hejun@xxxxxxxxx>
---
 tools/kvm/Makefile          |    1 +
 tools/kvm/include/kvm/uip.h |    2 +
 tools/kvm/uip/core.c        |   58 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 61 insertions(+), 0 deletions(-)
 create mode 100644 tools/kvm/uip/core.c

diff --git a/tools/kvm/Makefile b/tools/kvm/Makefile
index c088718..733769d 100644
--- a/tools/kvm/Makefile
+++ b/tools/kvm/Makefile
@@ -45,6 +45,7 @@ OBJS	+= disk/qcow.o
 OBJS	+= disk/raw.o
 OBJS	+= ioeventfd.o
 OBJS	+= irq.o
+OBJS	+= uip/core.o
 OBJS	+= uip/arp.o
 OBJS	+= uip/icmp.o
 OBJS	+= uip/ipv4.o
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 893c5f8..c300de0 100644
--- a/tools/kvm/include/kvm/uip.h
+++ b/tools/kvm/include/kvm/uip.h
@@ -267,6 +267,8 @@ static inline u16 uip_eth_hdrlen(struct uip_eth *eth)
 	return sizeof(*eth);
 }
 
+int uip_init(struct uip_info *info);
+
 int uip_tx_do_ipv4_icmp(struct uip_tx_arg *arg);
 int uip_tx_do_ipv4_tcp(struct uip_tx_arg *arg);
 int uip_tx_do_ipv4_udp(struct uip_tx_arg *arg);
diff --git a/tools/kvm/uip/core.c b/tools/kvm/uip/core.c
new file mode 100644
index 0000000..58eba6b
--- /dev/null
+++ b/tools/kvm/uip/core.c
@@ -0,0 +1,58 @@
+#include "kvm/mutex.h"
+#include "kvm/uip.h"
+
+#include <linux/virtio_net.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+
+int uip_init(struct uip_info *info)
+{
+	struct list_head *udp_socket_head;
+	struct list_head *tcp_socket_head;
+	struct list_head *buf_head;
+	struct uip_buf *buf;
+	int buf_nr;
+	int i;
+
+	udp_socket_head	= &info->udp_socket_head;
+	tcp_socket_head	= &info->tcp_socket_head;
+	buf_head	= &info->buf_head;
+	buf_nr		= info->buf_nr;
+
+	INIT_LIST_HEAD(udp_socket_head);
+	INIT_LIST_HEAD(tcp_socket_head);
+	INIT_LIST_HEAD(buf_head);
+
+	pthread_mutex_init(&info->udp_socket_lock, NULL);
+	pthread_mutex_init(&info->tcp_socket_lock, NULL);
+	pthread_mutex_init(&info->buf_lock, NULL);
+
+	pthread_cond_init(&info->buf_used_cond, NULL);
+	pthread_cond_init(&info->buf_free_cond, NULL);
+
+
+	for (i = 0; i < buf_nr; i++) {
+		buf = malloc(sizeof(*buf));
+		memset(buf, 0, sizeof(*buf));
+
+		buf->status	= UIP_BUF_STATUS_FREE;
+		buf->info	= info;
+		buf->id		= i;
+		list_add_tail(&buf->list, buf_head);
+	}
+
+	list_for_each_entry(buf, buf_head, list) {
+		buf->vnet	= malloc(sizeof(struct virtio_net_hdr));
+		buf->vnet_len	= sizeof(struct virtio_net_hdr);
+		buf->eth	= malloc(1024*64 + sizeof(struct uip_pseudo_hdr));
+		buf->eth_len	= 1024*64 + sizeof(struct uip_pseudo_hdr);
+
+		memset(buf->vnet, 0, buf->vnet_len);
+		memset(buf->eth, 0, buf->eth_len);
+	}
+
+	info->buf_free_nr = buf_nr;
+	info->buf_used_nr = 0;
+
+	return 0;
+}
-- 
1.7.5.4

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