1f173c2b7SSean Bruno /* 2f173c2b7SSean Bruno * BSD LICENSE 3f173c2b7SSean Bruno * 4f173c2b7SSean Bruno * Copyright(c) 2017 Cavium, Inc.. All rights reserved. 5f173c2b7SSean Bruno * All rights reserved. 6f173c2b7SSean Bruno * 7f173c2b7SSean Bruno * Redistribution and use in source and binary forms, with or without 8f173c2b7SSean Bruno * modification, are permitted provided that the following conditions 9f173c2b7SSean Bruno * are met: 10f173c2b7SSean Bruno * 11f173c2b7SSean Bruno * * Redistributions of source code must retain the above copyright 12f173c2b7SSean Bruno * notice, this list of conditions and the following disclaimer. 13f173c2b7SSean Bruno * * Redistributions in binary form must reproduce the above copyright 14f173c2b7SSean Bruno * notice, this list of conditions and the following disclaimer in 15f173c2b7SSean Bruno * the documentation and/or other materials provided with the 16f173c2b7SSean Bruno * distribution. 17f173c2b7SSean Bruno * * Neither the name of Cavium, Inc. nor the names of its 18f173c2b7SSean Bruno * contributors may be used to endorse or promote products derived 19f173c2b7SSean Bruno * from this software without specific prior written permission. 20f173c2b7SSean Bruno * 21f173c2b7SSean Bruno * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22f173c2b7SSean Bruno * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23f173c2b7SSean Bruno * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24f173c2b7SSean Bruno * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25f173c2b7SSean Bruno * OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26f173c2b7SSean Bruno * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27f173c2b7SSean Bruno * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28f173c2b7SSean Bruno * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29f173c2b7SSean Bruno * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30f173c2b7SSean Bruno * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31f173c2b7SSean Bruno * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32f173c2b7SSean Bruno */ 33f173c2b7SSean Bruno /*$FreeBSD$*/ 34f173c2b7SSean Bruno 35f173c2b7SSean Bruno #ifndef _LIO_RXTX_H_ 36f173c2b7SSean Bruno #define _LIO_RXTX_H_ 37f173c2b7SSean Bruno 38f173c2b7SSean Bruno /* Bit mask values for lio->ifstate */ 39f173c2b7SSean Bruno #define LIO_IFSTATE_DROQ_OPS 0x01 40f173c2b7SSean Bruno #define LIO_IFSTATE_REGISTERED 0x02 41f173c2b7SSean Bruno #define LIO_IFSTATE_RUNNING 0x04 42f173c2b7SSean Bruno #define LIO_IFSTATE_DETACH 0x08 43f173c2b7SSean Bruno #define LIO_IFSTATE_RESETTING 0x10 44f173c2b7SSean Bruno 45f173c2b7SSean Bruno 46f173c2b7SSean Bruno /* 47f173c2b7SSean Bruno * Structure of a node in list of gather components maintained by 48f173c2b7SSean Bruno * NIC driver for each network device. 49f173c2b7SSean Bruno */ 50f173c2b7SSean Bruno struct lio_gather { 51f173c2b7SSean Bruno /* List manipulation. Next and prev pointers. */ 52f173c2b7SSean Bruno struct lio_stailq_node node; 53f173c2b7SSean Bruno 54f173c2b7SSean Bruno /* Size of the gather component at sg in bytes. */ 55f173c2b7SSean Bruno int sg_size; 56f173c2b7SSean Bruno 57f173c2b7SSean Bruno /* 58f173c2b7SSean Bruno * Gather component that can accommodate max sized fragment list 59f173c2b7SSean Bruno * received from the IP layer. 60f173c2b7SSean Bruno */ 61f173c2b7SSean Bruno struct lio_sg_entry *sg; 62f173c2b7SSean Bruno 63f173c2b7SSean Bruno uint64_t sg_dma_ptr; 64f173c2b7SSean Bruno }; 65f173c2b7SSean Bruno 66f173c2b7SSean Bruno union lio_tx_info { 67f173c2b7SSean Bruno uint64_t tx_info64; 68f173c2b7SSean Bruno struct { 69f173c2b7SSean Bruno #if _BYTE_ORDER == _BIG_ENDIAN 70f173c2b7SSean Bruno uint16_t gso_size; 71f173c2b7SSean Bruno uint16_t gso_segs; 72f173c2b7SSean Bruno uint32_t reserved; 73f173c2b7SSean Bruno #else /* _BYTE_ORDER == _LITTLE_ENDIAN */ 74f173c2b7SSean Bruno uint32_t reserved; 75f173c2b7SSean Bruno uint16_t gso_segs; 76f173c2b7SSean Bruno uint16_t gso_size; 77f173c2b7SSean Bruno #endif 78f173c2b7SSean Bruno } s; 79f173c2b7SSean Bruno }; 80f173c2b7SSean Bruno 81f173c2b7SSean Bruno int lio_xmit(struct lio *lio, struct lio_instr_queue *iq, 82f173c2b7SSean Bruno struct mbuf **m_headp); 83*2c50292dSJustin Hibbits int lio_mq_start_locked(if_t ifp, struct lio_instr_queue *iq); 84*2c50292dSJustin Hibbits int lio_mq_start(if_t ifp, struct mbuf *m); 85*2c50292dSJustin Hibbits void lio_qflush(if_t ifp); 86f173c2b7SSean Bruno #endif /* _LIO_RXTX_H_ */ 87