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86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* BSD LICENSE
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*
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* Copyright(c) 2017 Cavium, Inc.. All rights reserved.
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* All rights reserved.
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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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*
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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Cavium, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LIO_RXTX_H_
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#define _LIO_RXTX_H_
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/* Bit mask values for lio->ifstate */
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#define LIO_IFSTATE_DROQ_OPS 0x01
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#define LIO_IFSTATE_REGISTERED 0x02
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#define LIO_IFSTATE_RUNNING 0x04
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#define LIO_IFSTATE_DETACH 0x08
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#define LIO_IFSTATE_RESETTING 0x10
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/*
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* Structure of a node in list of gather components maintained by
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* NIC driver for each network device.
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*/
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struct lio_gather {
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/* List manipulation. Next and prev pointers. */
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struct lio_stailq_node node;
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/* Size of the gather component at sg in bytes. */
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int sg_size;
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/*
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* Gather component that can accommodate max sized fragment list
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* received from the IP layer.
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*/
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struct lio_sg_entry *sg;
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uint64_t sg_dma_ptr;
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};
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union lio_tx_info {
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uint64_t tx_info64;
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struct {
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#if _BYTE_ORDER == _BIG_ENDIAN
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uint16_t gso_size;
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uint16_t gso_segs;
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uint32_t reserved;
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#else /* _BYTE_ORDER == _LITTLE_ENDIAN */
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uint32_t reserved;
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uint16_t gso_segs;
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uint16_t gso_size;
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#endif
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} s;
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};
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int lio_xmit(struct lio *lio, struct lio_instr_queue *iq,
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struct mbuf **m_headp);
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int lio_mq_start_locked(if_t ifp, struct lio_instr_queue *iq);
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int lio_mq_start(if_t ifp, struct mbuf *m);
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void lio_qflush(if_t ifp);
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#endif /* _LIO_RXTX_H_ */
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