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Diffstat (limited to 'freebsd/sys/netinet/toedev.h')
| -rw-r--r-- | freebsd/sys/netinet/toedev.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/freebsd/sys/netinet/toedev.h b/freebsd/sys/netinet/toedev.h new file mode 100644 index 00000000..4623845c --- /dev/null +++ b/freebsd/sys/netinet/toedev.h @@ -0,0 +1,162 @@ +/*- + * Copyright (c) 2007, Chelsio Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Neither the name of the Chelsio Corporation nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _NETINET_TOEDEV_HH_ +#define _NETINET_TOEDEV_HH_ + +#ifndef _KERNEL +#error "no user-serviceable parts inside" +#endif + +extern uint32_t toedev_registration_count; + +/* Parameter values for offload_get_phys_egress(). */ +enum { + TOE_OPEN, + TOE_FAILOVER, +}; + +/* Parameter values for toe_failover(). */ +enum { + TOE_ACTIVE_SLAVE, + TOE_LINK_DOWN, + TOE_LINK_UP, + TOE_RELEASE, + TOE_RELEASE_ALL, +}; + +#define TOENAMSIZ 16 + +/* Get the toedev associated with a ifnet. */ +#define TOEDEV(ifp) ((ifp)->if_llsoftc) + +struct offload_id { + unsigned int id; + unsigned long data; +}; + +struct ifnet; +struct rt_entry; +struct tom_info; +struct sysctl_oid; +struct socket; +struct mbuf; + +struct toedev { + TAILQ_ENTRY(toedev) entry; + char tod_name[TOENAMSIZ]; /* TOE device name */ + unsigned int tod_ttid; /* TOE type id */ + unsigned long tod_flags; /* device flags */ + unsigned int tod_mtu; /* max TX offloaded data */ + unsigned int tod_nconn; /* max # of offloaded + * connections + */ + struct ifnet *tod_lldev; /* first interface */ + const struct tom_info *tod_offload_mod; /* TCP offload module */ + + /* + * This TOE device is capable of offloading the connection for socket so + */ + int (*tod_can_offload)(struct toedev *dev, struct socket *so); + + /* + * Establish a connection to nam using the TOE device dev + */ + int (*tod_connect)(struct toedev *dev, struct socket *so, + struct rtentry *rt, struct sockaddr *nam); + /* + * Send an mbuf down to the toe device + */ + int (*tod_send)(struct toedev *dev, struct mbuf *m); + /* + * Receive an array of mbufs from the TOE device dev + */ + int (*tod_recv)(struct toedev *dev, struct mbuf **m, int n); + /* + * Device specific ioctl interface + */ + int (*tod_ctl)(struct toedev *dev, unsigned int req, void *data); + /* + * Update L2 entry in toedev + */ + void (*tod_arp_update)(struct toedev *dev, struct rtentry *neigh); + /* + * Failover from one toe device to another + */ + void (*tod_failover)(struct toedev *dev, struct ifnet *bond_ifp, + struct ifnet *ndev, int event); + void *tod_priv; /* driver private data */ + void *tod_l2opt; /* optional layer 2 data */ + void *tod_l3opt; /* optional layer 3 data */ + void *tod_l4opt; /* optional layer 4 data */ + void *tod_ulp; /* upper lever protocol */ +}; + +struct tom_info { + TAILQ_ENTRY(tom_info) entry; + int (*ti_attach)(struct toedev *dev, + const struct offload_id *entry); + int (*ti_detach)(struct toedev *dev); + const char *ti_name; + const struct offload_id *ti_id_table; +}; + +static __inline void +init_offload_dev(struct toedev *dev) +{ +} + +int register_tom(struct tom_info *t); +int unregister_tom(struct tom_info *t); +int register_toedev(struct toedev *dev, const char *name); +int unregister_toedev(struct toedev *dev); +int activate_offload(struct toedev *dev); +int toe_send(struct toedev *dev, struct mbuf *m); +void toe_arp_update(struct rtentry *rt); +struct ifnet *offload_get_phys_egress(struct ifnet *ifp, + struct socket *so, int context); +int toe_receive_mbuf(struct toedev *dev, struct mbuf **m, int n); + +static __inline void +toe_neigh_update(struct ifnet *ifp) +{ +} + +static __inline void +toe_failover(struct ifnet *bond_ifp, struct ifnet *fail_ifp, int event) +{ +} + +static __inline int +toe_enslave(struct ifnet *bond_ifp, struct ifnet *slave_ifp) +{ + return (0); +} + +#endif /* _NETINET_TOEDEV_HH_ */ |