freebsd-skq/sys/dev/cxgbe/offload.h

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/*-
* Copyright (c) 2010 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_OFFLOAD_H__
#define __T4_OFFLOAD_H__
/* CPL message priority levels */
enum {
CPL_PRIORITY_DATA = 0, /* data messages */
CPL_PRIORITY_SETUP = 1, /* connection setup messages */
CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */
CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */
CPL_PRIORITY_ACK = 1, /* RX ACK messages */
CPL_PRIORITY_CONTROL = 1 /* control messages */
};
#define INIT_TP_WR(w, tid) do { \
(w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \
V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
(w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
V_FW_WR_FLOWID(tid)); \
(w)->wr.wr_lo = cpu_to_be64(0); \
} while (0)
/*
* Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
*/
#define MAX_ATIDS 8192U
struct serv_entry {
void *data;
};
union aopen_entry {
void *data;
union aopen_entry *next;
};
/*
* Holds the size, base address, free list start, etc of the TID, server TID,
* and active-open TID tables. The tables themselves are allocated dynamically.
*/
struct tid_info {
void **tid_tab;
unsigned int ntids;
struct serv_entry *stid_tab;
unsigned long *stid_bmap;
unsigned int nstids;
unsigned int stid_base;
union aopen_entry *atid_tab;
unsigned int natids;
struct filter_entry *ftid_tab;
unsigned int nftids;
unsigned int ftid_base;
unsigned int ftids_in_use;
union aopen_entry *afree;
unsigned int atids_in_use;
unsigned int stids_in_use;
};
struct t4_range {
unsigned int start;
unsigned int size;
};
struct t4_virt_res { /* virtualized HW resources */
struct t4_range ddp;
struct t4_range iscsi;
struct t4_range stag;
struct t4_range rq;
struct t4_range pbl;
};
#endif