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/*-
* Copyright (c) 2011 Chelsio Communications, Inc.
* All rights reserved.
* Written by: Navdeep Parhar <np@FreeBSD.org>
*
* 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. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 __T4_IOCTL_H__
#define __T4_IOCTL_H__
#include <sys/types.h>
#include <net/ethernet.h>
/*
* Ioctl commands specific to this driver.
*/
enum {
T4_GETREG = 0x40, /* read register */
T4_SETREG, /* write register */
T4_REGDUMP, /* dump of all registers */
T4_GET_FILTER_MODE, /* get global filter mode */
T4_SET_FILTER_MODE, /* set global filter mode */
T4_GET_FILTER, /* get information about a filter */
T4_SET_FILTER, /* program a filter */
T4_DEL_FILTER, /* delete a filter */
};
struct t4_reg {
uint32_t addr;
uint32_t size;
uint64_t val;
};
#define T4_REGDUMP_SIZE (160 * 1024)
struct t4_regdump {
uint32_t version;
uint32_t len; /* bytes */
uint32_t *data;
};
/*
* A hardware filter is some valid combination of these.
*/
#define T4_FILTER_IPv4 0x1 /* IPv4 packet */
#define T4_FILTER_IPv6 0x2 /* IPv6 packet */
#define T4_FILTER_IP_SADDR 0x4 /* Source IP address or network */
#define T4_FILTER_IP_DADDR 0x8 /* Destination IP address or network */
#define T4_FILTER_IP_SPORT 0x10 /* Source IP port */
#define T4_FILTER_IP_DPORT 0x20 /* Destination IP port */
#define T4_FILTER_FCoE 0x40 /* Fibre Channel over Ethernet packet */
#define T4_FILTER_PORT 0x80 /* Physical ingress port */
#define T4_FILTER_OVLAN 0x100 /* Outer VLAN ID */
#define T4_FILTER_IVLAN 0x200 /* Inner VLAN ID */
#define T4_FILTER_IP_TOS 0x400 /* IPv4 TOS/IPv6 Traffic Class */
#define T4_FILTER_IP_PROTO 0x800 /* IP protocol */
#define T4_FILTER_ETH_TYPE 0x1000 /* Ethernet Type */
#define T4_FILTER_MAC_IDX 0x2000 /* MPS MAC address match index */
#define T4_FILTER_MPS_HIT_TYPE 0x4000 /* MPS match type */
#define T4_FILTER_IP_FRAGMENT 0x8000 /* IP fragment */
/* Filter action */
enum {
FILTER_PASS = 0, /* default */
FILTER_DROP,
FILTER_SWITCH
};
/* 802.1q manipulation on FILTER_SWITCH */
enum {
VLAN_NOCHANGE = 0, /* default */
VLAN_REMOVE,
VLAN_INSERT,
VLAN_REWRITE
};
/* MPS match type */
enum {
UCAST_EXACT = 0, /* exact unicast match */
UCAST_HASH = 1, /* inexact (hashed) unicast match */
MCAST_EXACT = 2, /* exact multicast match */
MCAST_HASH = 3, /* inexact (hashed) multicast match */
PROMISC = 4, /* no match but port is promiscuous */
HYPPROMISC = 5, /* port is hypervisor-promisuous + not bcast */
BCAST = 6, /* broadcast packet */
};
/* Rx steering */
enum {
DST_MODE_QUEUE, /* queue is directly specified by filter */
DST_MODE_RSS_QUEUE, /* filter specifies RSS entry containing queue */
DST_MODE_RSS, /* queue selected by default RSS hash lookup */
DST_MODE_FILT_RSS /* queue selected by hashing in filter-specified
RSS subtable */
};
struct t4_filter_tuple {
/*
* These are always available.
*/
uint8_t sip[16]; /* source IP address (IPv4 in [3:0]) */
uint8_t dip[16]; /* destinatin IP address (IPv4 in [3:0]) */
uint16_t sport; /* source port */
uint16_t dport; /* destination port */
/*
* A combination of these (upto 36 bits) is available. TP_VLAN_PRI_MAP
* is used to select the global mode and all filters are limited to the
* set of fields allowed by the global mode.
*/
uint16_t ovlan; /* outer VLAN */
uint16_t ivlan; /* inner VLAN */
uint16_t ethtype; /* Ethernet type */
uint8_t tos; /* TOS/Traffic Type */
uint8_t proto; /* protocol type */
uint32_t fcoe:1; /* FCoE packet */
uint32_t iport:3; /* ingress port */
uint32_t matchtype:3; /* MPS match type */
uint32_t frag:1; /* fragmentation extension header */
uint32_t macidx:9; /* exact match MAC index */
uint32_t ivlan_vld:1; /* inner VLAN valid */
uint32_t ovlan_vld:1; /* outer VLAN valid */
};
struct t4_filter_specification {
uint32_t hitcnts:1; /* count filter hits in TCB */
uint32_t prio:1; /* filter has priority over active/server */
uint32_t type:1; /* 0 => IPv4, 1 => IPv6 */
uint32_t action:2; /* drop, pass, switch */
uint32_t rpttid:1; /* report TID in RSS hash field */
uint32_t dirsteer:1; /* 0 => RSS, 1 => steer to iq */
uint32_t iq:10; /* ingress queue */
uint32_t maskhash:1; /* dirsteer=0: store RSS hash in TCB */
uint32_t dirsteerhash:1;/* dirsteer=1: 0 => TCB contains RSS hash */
/* 1 => TCB contains IQ ID */
/*
* Switch proxy/rewrite fields. An ingress packet which matches a
* filter with "switch" set will be looped back out as an egress
* packet -- potentially with some Ethernet header rewriting.
*/
uint32_t eport:2; /* egress port to switch packet out */
uint32_t newdmac:1; /* rewrite destination MAC address */
uint32_t newsmac:1; /* rewrite source MAC address */
uint32_t newvlan:2; /* rewrite VLAN Tag */
uint8_t dmac[ETHER_ADDR_LEN]; /* new destination MAC address */
uint8_t smac[ETHER_ADDR_LEN]; /* new source MAC address */
uint16_t vlan; /* VLAN Tag to insert */
/*
* Filter rule value/mask pairs.
*/
struct t4_filter_tuple val;
struct t4_filter_tuple mask;
};
struct t4_filter {
uint32_t idx;
uint64_t hits;
struct t4_filter_specification fs;
};
#define CHELSIO_T4_GETREG _IOWR('f', T4_GETREG, struct t4_reg)
#define CHELSIO_T4_SETREG _IOW('f', T4_SETREG, struct t4_reg)
#define CHELSIO_T4_REGDUMP _IOWR('f', T4_REGDUMP, struct t4_regdump)
#define CHELSIO_T4_GET_FILTER_MODE _IOWR('f', T4_GET_FILTER_MODE, uint32_t)
#define CHELSIO_T4_SET_FILTER_MODE _IOW('f', T4_SET_FILTER_MODE, uint32_t)
#define CHELSIO_T4_GET_FILTER _IOWR('f', T4_GET_FILTER, struct t4_filter)
#define CHELSIO_T4_SET_FILTER _IOW('f', T4_SET_FILTER, struct t4_filter)
#define CHELSIO_T4_DEL_FILTER _IOW('f', T4_DEL_FILTER, struct t4_filter)
#endif
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