PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / infiniband / hw / usnic / usnic_fwd.h
blob93713a2230b36724c5bef33933de4c512ba89784
1 /*
2 * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
4 * This program is free software; you may redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
15 * SOFTWARE.
19 #ifndef USNIC_FWD_H_
20 #define USNIC_FWD_H_
22 #include <linux/if.h>
23 #include <linux/netdevice.h>
24 #include <linux/pci.h>
25 #include <linux/in.h>
27 #include "usnic_abi.h"
28 #include "usnic_common_pkt_hdr.h"
29 #include "vnic_devcmd.h"
31 struct usnic_fwd_dev {
32 struct pci_dev *pdev;
33 struct net_device *netdev;
34 spinlock_t lock;
36 * The following fields can be read directly off the device.
37 * However, they should be set by a accessor function, except name,
38 * which cannot be changed.
40 bool link_up;
41 char mac[ETH_ALEN];
42 unsigned int mtu;
43 __be32 inaddr;
44 char name[IFNAMSIZ+1];
47 struct usnic_fwd_flow {
48 uint32_t flow_id;
49 struct usnic_fwd_dev *ufdev;
50 unsigned int vnic_idx;
53 struct usnic_filter_action {
54 int vnic_idx;
55 struct filter_action action;
58 struct usnic_fwd_dev *usnic_fwd_dev_alloc(struct pci_dev *pdev);
59 void usnic_fwd_dev_free(struct usnic_fwd_dev *ufdev);
61 void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, char mac[ETH_ALEN]);
62 int usnic_fwd_add_ipaddr(struct usnic_fwd_dev *ufdev, __be32 inaddr);
63 void usnic_fwd_del_ipaddr(struct usnic_fwd_dev *ufdev);
64 void usnic_fwd_carrier_up(struct usnic_fwd_dev *ufdev);
65 void usnic_fwd_carrier_down(struct usnic_fwd_dev *ufdev);
66 void usnic_fwd_set_mtu(struct usnic_fwd_dev *ufdev, unsigned int mtu);
69 * Allocate a flow on this forwarding device. Whoever calls this function,
70 * must monitor netdev events on ufdev's netdevice. If NETDEV_REBOOT or
71 * NETDEV_DOWN is seen, flow will no longer function and must be
72 * immediately freed by calling usnic_dealloc_flow.
74 struct usnic_fwd_flow*
75 usnic_fwd_alloc_flow(struct usnic_fwd_dev *ufdev, struct filter *filter,
76 struct usnic_filter_action *action);
77 int usnic_fwd_dealloc_flow(struct usnic_fwd_flow *flow);
78 int usnic_fwd_enable_qp(struct usnic_fwd_dev *ufdev, int vnic_idx, int qp_idx);
79 int usnic_fwd_disable_qp(struct usnic_fwd_dev *ufdev, int vnic_idx, int qp_idx);
81 static inline void usnic_fwd_init_usnic_filter(struct filter *filter,
82 uint32_t usnic_id)
84 filter->type = FILTER_USNIC_ID;
85 filter->u.usnic.ethtype = USNIC_ROCE_ETHERTYPE;
86 filter->u.usnic.flags = FILTER_FIELD_USNIC_ETHTYPE |
87 FILTER_FIELD_USNIC_ID |
88 FILTER_FIELD_USNIC_PROTO;
89 filter->u.usnic.proto_version = (USNIC_ROCE_GRH_VER <<
90 USNIC_ROCE_GRH_VER_SHIFT) |
91 USNIC_PROTO_VER;
92 filter->u.usnic.usnic_id = usnic_id;
95 static inline void usnic_fwd_init_udp_filter(struct filter *filter,
96 uint32_t daddr, uint16_t dport)
98 filter->type = FILTER_IPV4_5TUPLE;
99 filter->u.ipv4.flags = FILTER_FIELD_5TUP_PROTO;
100 filter->u.ipv4.protocol = PROTO_UDP;
102 if (daddr) {
103 filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_AD;
104 filter->u.ipv4.dst_addr = daddr;
107 if (dport) {
108 filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_PT;
109 filter->u.ipv4.dst_port = dport;
113 #endif /* !USNIC_FWD_H_ */