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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | /* * 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_ */ |