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