/*
|
* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
|
*
|
* This software is available to you under a choice of one of two
|
* licenses. You may choose to be licensed under the terms of the GNU
|
* General Public License (GPL) Version 2, available from the file
|
* COPYING in the main directory of this source tree, or the
|
* BSD license below:
|
*
|
* Redistribution and use in source and binary forms, with or
|
* without modification, are permitted provided that the following
|
* conditions are met:
|
*
|
* - Redistributions of source code must retain the above
|
* copyright notice, this list of conditions and the following
|
* disclaimer.
|
*
|
* - Redistributions in binary form must reproduce the above
|
* copyright notice, this list of conditions and the following
|
* disclaimer in the documentation and/or other materials
|
* provided with the distribution.
|
*
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
* SOFTWARE.
|
*
|
*/
|
|
#ifndef USNIC_FWD_H_
|
#define USNIC_FWD_H_
|
|
#include <linux/if.h>
|
#include <linux/netdevice.h>
|
#include <linux/if_ether.h>
|
#include <linux/pci.h>
|
#include <linux/in.h>
|
|
#include "usnic_abi.h"
|
#include "usnic_common_pkt_hdr.h"
|
#include "vnic_devcmd.h"
|
|
struct usnic_fwd_dev {
|
struct pci_dev *pdev;
|
struct net_device *netdev;
|
spinlock_t lock;
|
/*
|
* The following fields can be read directly off the device.
|
* However, they should be set by a accessor function, except name,
|
* which cannot be changed.
|
*/
|
bool link_up;
|
char mac[ETH_ALEN];
|
unsigned int mtu;
|
__be32 inaddr;
|
char name[IFNAMSIZ];
|
};
|
|
struct usnic_fwd_flow {
|
uint32_t flow_id;
|
struct usnic_fwd_dev *ufdev;
|
unsigned int vnic_idx;
|
};
|
|
struct usnic_filter_action {
|
int vnic_idx;
|
struct filter_action action;
|
};
|
|
struct usnic_fwd_dev *usnic_fwd_dev_alloc(struct pci_dev *pdev);
|
void usnic_fwd_dev_free(struct usnic_fwd_dev *ufdev);
|
|
void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, char mac[ETH_ALEN]);
|
void usnic_fwd_add_ipaddr(struct usnic_fwd_dev *ufdev, __be32 inaddr);
|
void usnic_fwd_del_ipaddr(struct usnic_fwd_dev *ufdev);
|
void usnic_fwd_carrier_up(struct usnic_fwd_dev *ufdev);
|
void usnic_fwd_carrier_down(struct usnic_fwd_dev *ufdev);
|
void usnic_fwd_set_mtu(struct usnic_fwd_dev *ufdev, unsigned int mtu);
|
|
/*
|
* Allocate a flow on this forwarding device. Whoever calls this function,
|
* must monitor netdev events on ufdev's netdevice. If NETDEV_REBOOT or
|
* NETDEV_DOWN is seen, flow will no longer function and must be
|
* immediately freed by calling usnic_dealloc_flow.
|
*/
|
struct usnic_fwd_flow*
|
usnic_fwd_alloc_flow(struct usnic_fwd_dev *ufdev, struct filter *filter,
|
struct usnic_filter_action *action);
|
int usnic_fwd_dealloc_flow(struct usnic_fwd_flow *flow);
|
int usnic_fwd_enable_qp(struct usnic_fwd_dev *ufdev, int vnic_idx, int qp_idx);
|
int usnic_fwd_disable_qp(struct usnic_fwd_dev *ufdev, int vnic_idx, int qp_idx);
|
|
static inline void usnic_fwd_init_usnic_filter(struct filter *filter,
|
uint32_t usnic_id)
|
{
|
filter->type = FILTER_USNIC_ID;
|
filter->u.usnic.ethtype = ETH_P_IBOE;
|
filter->u.usnic.flags = FILTER_FIELD_USNIC_ETHTYPE |
|
FILTER_FIELD_USNIC_ID |
|
FILTER_FIELD_USNIC_PROTO;
|
filter->u.usnic.proto_version = (USNIC_ROCE_GRH_VER <<
|
USNIC_ROCE_GRH_VER_SHIFT) |
|
USNIC_PROTO_VER;
|
filter->u.usnic.usnic_id = usnic_id;
|
}
|
|
static inline void usnic_fwd_init_udp_filter(struct filter *filter,
|
uint32_t daddr, uint16_t dport)
|
{
|
filter->type = FILTER_IPV4_5TUPLE;
|
filter->u.ipv4.flags = FILTER_FIELD_5TUP_PROTO;
|
filter->u.ipv4.protocol = PROTO_UDP;
|
|
if (daddr) {
|
filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_AD;
|
filter->u.ipv4.dst_addr = daddr;
|
}
|
|
if (dport) {
|
filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_PT;
|
filter->u.ipv4.dst_port = dport;
|
}
|
}
|
|
#endif /* !USNIC_FWD_H_ */
|
