718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/**************************************************************************
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SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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Copyright (c) 2007-2008, Chelsio Inc.
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All rights reserved.
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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 are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Neither the name of the Chelsio Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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$FreeBSD$
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***************************************************************************/
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#ifndef _CXGB_OFFLOAD_H
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#define _CXGB_OFFLOAD_H
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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 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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};
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/* CPL message priority levels */
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enum {
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CPL_PRIORITY_DATA = 0, /* data messages */
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CPL_PRIORITY_CONTROL = 1 /* offload control messages */
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};
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#define S_HDR_NDESC 0
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#define M_HDR_NDESC 0xf
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#define V_HDR_NDESC(x) ((x) << S_HDR_NDESC)
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#define G_HDR_NDESC(x) (((x) >> S_HDR_NDESC) & M_HDR_NDESC)
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#define S_HDR_QSET 4
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#define M_HDR_QSET 0xf
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#define V_HDR_QSET(x) ((x) << S_HDR_QSET)
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#define G_HDR_QSET(x) (((x) >> S_HDR_QSET) & M_HDR_QSET)
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#define S_HDR_CTRL 8
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#define V_HDR_CTRL(x) ((x) << S_HDR_CTRL)
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#define F_HDR_CTRL V_HDR_CTRL(1U)
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#define S_HDR_DF 9
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#define V_HDR_DF(x) ((x) << S_HDR_DF)
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#define F_HDR_DF V_HDR_DF(1U)
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#define S_HDR_SGL 10
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#define V_HDR_SGL(x) ((x) << S_HDR_SGL)
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#define F_HDR_SGL V_HDR_SGL(1U)
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struct ofld_hdr
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{
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void *sgl; /* SGL, if F_HDR_SGL set in flags */
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int plen; /* amount of payload (in bytes) */
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int flags;
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};
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/*
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* Convenience function for fixed size CPLs that fit in 1 desc.
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*/
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#define M_GETHDR_OFLD(qset, ctrl, cpl) \
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m_gethdr_ofld(qset, ctrl, sizeof(*cpl), (void **)&cpl)
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static inline struct mbuf *
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m_gethdr_ofld(int qset, int ctrl, int cpllen, void **cpl)
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{
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struct mbuf *m;
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struct ofld_hdr *oh;
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m = m_gethdr(M_NOWAIT, MT_DATA);
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if (m == NULL)
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return (NULL);
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oh = mtod(m, struct ofld_hdr *);
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oh->flags = V_HDR_NDESC(1) | V_HDR_QSET(qset) | V_HDR_CTRL(ctrl);
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*cpl = (void *)(oh + 1);
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m->m_pkthdr.len = m->m_len = sizeof(*oh) + cpllen;
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return (m);
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}
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int t3_register_uld(struct uld_info *);
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int t3_unregister_uld(struct uld_info *);
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int t3_activate_uld(struct adapter *, int);
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int t3_deactivate_uld(struct adapter *, int);
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#endif /* TCP_OFFLOAD */
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#define CXGB_UNIMPLEMENTED() \
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panic("IMPLEMENT: %s:%s:%d", __FUNCTION__, __FILE__, __LINE__)
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#endif
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