1 /* 2 * Copyright (c) 2014-2017, Cisco Systems, Inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 */ 36 #ifndef _USDF_DGRAM_H_ 37 #define _USDF_DGRAM_H_ 38 39 #define USDF_DGRAM_MAX_SGE 8 40 #define USDF_DGRAM_DFLT_SGE 4 41 42 #define USDF_DGRAM_CAPS (FI_MSG | FI_SOURCE | FI_SEND | FI_RECV) 43 44 #define USDF_DGRAM_SUPP_MODE (FI_LOCAL_MR | FI_MSG_PREFIX) 45 46 #define USDF_DGRAM_MSG_ORDER (FI_ORDER_NONE) 47 #define USDF_DGRAM_COMP_ORDER (FI_ORDER_NONE) 48 #define USDF_DGRAM_INJECT_SIZE \ 49 (USD_SEND_MAX_COPY - sizeof(struct usd_udp_hdr)) 50 #define USDF_DGRAM_SUPP_SENDMSG_FLAGS \ 51 (FI_INJECT | FI_COMPLETION | FI_INJECT_COMPLETE | FI_TRANSMIT_COMPLETE) 52 #define USDF_DGRAM_SUPP_RECVMSG_FLAGS (FI_COMPLETION) 53 #define USDF_DGRAM_IOV_LIMIT (USDF_DGRAM_DFLT_SGE) 54 #define USDF_DGRAM_RMA_IOV_LIMIT 0 55 #define USDF_DGRAM_CNTR_CNT 0 56 #define USDF_DGRAM_MR_IOV_LIMIT (USDF_MR_IOV_LIMIT) 57 #define USDF_DGRAM_MR_CNT (USDF_MR_CNT) 58 59 60 int usdf_dgram_fill_rx_attr(uint32_t version, const struct fi_info *hints, 61 struct fi_info *fi, struct usd_device_attrs *dap); 62 int usdf_dgram_fill_tx_attr(uint32_t version, const struct fi_info *hints, 63 struct fi_info *fi, struct usd_device_attrs *dap); 64 int usdf_dgram_fill_dom_attr(uint32_t version, const struct fi_info *hints, 65 struct fi_info *fi, struct usd_device_attrs *dap); 66 int usdf_dgram_fill_ep_attr(uint32_t version, const struct fi_info *hints, 67 struct fi_info *fi, struct usd_device_attrs *dap); 68 69 /* fi_ops_msg for DGRAM */ 70 ssize_t usdf_dgram_recv(struct fid_ep *ep, void *buf, size_t len, void *desc, 71 fi_addr_t src_addr, void *context); 72 ssize_t usdf_dgram_recvv(struct fid_ep *ep, const struct iovec *iov, 73 void **desc, size_t count, fi_addr_t src_addr, void *context); 74 ssize_t usdf_dgram_recvmsg(struct fid_ep *ep, const struct fi_msg *msg, 75 uint64_t flags); 76 ssize_t usdf_dgram_send(struct fid_ep *ep, const void *buf, size_t len, 77 void *desc, fi_addr_t dest_addr, void *context); 78 ssize_t usdf_dgram_sendv(struct fid_ep *ep, const struct iovec *iov, 79 void **desc, size_t count, fi_addr_t dest_addr, void *context); 80 ssize_t usdf_dgram_sendmsg(struct fid_ep *ep, const struct fi_msg *msg, 81 uint64_t flags); 82 ssize_t usdf_dgram_inject(struct fid_ep *ep, const void *buf, size_t len, 83 fi_addr_t dest_addr); 84 ssize_t usdf_dgram_rx_size_left(struct fid_ep *ep); 85 ssize_t usdf_dgram_tx_size_left(struct fid_ep *ep); 86 87 ssize_t usdf_dgram_prefix_recv(struct fid_ep *ep, void *buf, size_t len, 88 void *desc, fi_addr_t src_addr, void *context); 89 ssize_t usdf_dgram_prefix_recvv(struct fid_ep *ep, const struct iovec *iov, 90 void **desc, size_t count, fi_addr_t src_addr, void *context); 91 ssize_t usdf_dgram_prefix_recvmsg(struct fid_ep *fep, const struct fi_msg *msg, 92 uint64_t flags); 93 ssize_t usdf_dgram_prefix_send(struct fid_ep *ep, const void *buf, size_t len, 94 void *desc, fi_addr_t dest_addr, void *context); 95 ssize_t usdf_dgram_prefix_sendv(struct fid_ep *fep, const struct iovec *iov, 96 void **desc, size_t count, fi_addr_t dest_addr, void *context); 97 ssize_t usdf_dgram_prefix_sendmsg(struct fid_ep *ep, const struct fi_msg *msg, 98 uint64_t flags); 99 ssize_t usdf_dgram_prefix_inject(struct fid_ep *ep, const void *buf, size_t len, 100 fi_addr_t dest_addr); 101 ssize_t usdf_dgram_prefix_rx_size_left(struct fid_ep *ep); 102 ssize_t usdf_dgram_prefix_tx_size_left(struct fid_ep *ep); 103 104 #endif /* _USDF_DGRAM_H_ */ 105