0fe982772d
(I'm committing this on behalf of my colleagues in the Storage team at Chelsio). Submitted by: Sreenivasa Honnur <shonnur at chelsio dot com> Sponsored by: Chelsio Communications.
159 lines
4.4 KiB
C
159 lines
4.4 KiB
C
/*-
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* Copyright (c) 2010 Chelsio Communications, Inc.
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* All rights reserved.
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* Written by: Navdeep Parhar <np@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef __T4_OFFLOAD_H__
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#define __T4_OFFLOAD_H__
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#define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \
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(w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \
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(w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \
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V_FW_WR_FLOWID(tid)); \
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(w)->wr_lo = cpu_to_be64(0); \
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} while (0)
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#define INIT_ULPTX_WR(w, wrlen, atomic, tid) \
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INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid)
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#define INIT_TP_WR(w, tid) do { \
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(w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \
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V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
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(w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
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V_FW_WR_FLOWID(tid)); \
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(w)->wr.wr_lo = cpu_to_be64(0); \
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} while (0)
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#define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \
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INIT_TP_WR(w, tid); \
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OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
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} while (0)
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TAILQ_HEAD(stid_head, stid_region);
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struct listen_ctx;
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struct stid_region {
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TAILQ_ENTRY(stid_region) link;
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u_int used; /* # of stids used by this region */
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u_int free; /* # of contiguous stids free right after this region */
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};
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/*
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* Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
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*/
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#define MAX_ATIDS 8192U
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union aopen_entry {
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void *data;
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union aopen_entry *next;
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};
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/*
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* Holds the size, base address, free list start, etc of the TID, server TID,
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* and active-open TID tables. The tables themselves are allocated dynamically.
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*/
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struct tid_info {
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void **tid_tab;
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u_int ntids;
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u_int tids_in_use;
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struct mtx stid_lock __aligned(CACHE_LINE_SIZE);
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struct listen_ctx **stid_tab;
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u_int nstids;
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u_int stid_base;
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u_int stids_in_use;
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u_int nstids_free_head; /* # of available stids at the begining */
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struct stid_head stids;
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struct mtx atid_lock __aligned(CACHE_LINE_SIZE);
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union aopen_entry *atid_tab;
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u_int natids;
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union aopen_entry *afree;
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u_int atids_in_use;
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struct mtx ftid_lock __aligned(CACHE_LINE_SIZE);
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struct filter_entry *ftid_tab;
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u_int nftids;
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u_int ftid_base;
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u_int ftids_in_use;
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struct mtx etid_lock __aligned(CACHE_LINE_SIZE);
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struct etid_entry *etid_tab;
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u_int netids;
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u_int etid_base;
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};
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struct t4_range {
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u_int start;
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u_int size;
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};
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struct t4_virt_res { /* virtualized HW resources */
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struct t4_range ddp;
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struct t4_range iscsi;
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struct t4_range stag;
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struct t4_range rq;
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struct t4_range pbl;
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struct t4_range qp;
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struct t4_range cq;
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struct t4_range ocq;
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struct t4_range l2t;
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};
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#ifdef TCP_OFFLOAD
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enum {
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ULD_TOM = 1,
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ULD_IWARP = 2,
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};
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struct adapter;
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struct port_info;
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struct uld_info {
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SLIST_ENTRY(uld_info) link;
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int refcount;
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int uld_id;
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int (*activate)(struct adapter *);
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int (*deactivate)(struct adapter *);
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};
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struct tom_tunables {
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int sndbuf;
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int ddp;
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int indsz;
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int ddp_thres;
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int rx_coalesce;
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};
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int t4_register_uld(struct uld_info *);
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int t4_unregister_uld(struct uld_info *);
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int t4_activate_uld(struct adapter *, int);
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int t4_deactivate_uld(struct adapter *, int);
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void t4_iscsi_init(struct ifnet *, unsigned int, const unsigned int *);
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#endif
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#endif
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