ceph/src/seastar/dpdk/drivers/net/ark/ark_pktgen.h

   1 /*-
   2  * BSD LICENSE
   3  *
   4  * Copyright (c) 2015-2017 Atomic Rules LLC
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * * Redistributions of source code must retain the above copyright
  12  * notice, this list of conditions and the following disclaimer.
  13  * * Redistributions in binary form must reproduce the above copyright
  14  * notice, this list of conditions and the following disclaimer in
  15  * the documentation and/or other materials provided with the
  16  * distribution.
  17  * * Neither the name of copyright holder nor the names of its
  18  * contributors may be used to endorse or promote products derived
  19  * from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _ARK_PKTGEN_H_
  35 #define _ARK_PKTGEN_H_
  36
  37 #include <stdint.h>
  38 #include <inttypes.h>
  39
  40 #define ARK_PKTGEN_BASE_ADR  0x10000
  41
  42 typedef void *ark_pkt_gen_t;
  43
  44 /* The packet generator is an internal Arkville hardware module, which
  45  * generates known packets for use in integrity and line-rate testing.
  46  * This module is *not* intended for end-user manipulation, hence
  47  * there is minimal documentation.
  48  */
  49
  50 /*
  51  * This is an overlay structure to a memory mapped FPGA device.  These
  52  * structs will never be instantiated in ram memory
  53  */
  54 struct ark_pkt_gen_regs {
  55         uint32_t r0;
  56         volatile uint32_t pkt_start_stop;
  57         volatile uint32_t pkt_ctrl;
  58         uint32_t pkt_payload;
  59         uint32_t pkt_spacing;
  60         uint32_t pkt_size_min;
  61         uint32_t pkt_size_max;
  62         uint32_t pkt_size_incr;
  63         volatile uint32_t num_pkts;
  64         volatile uint32_t pkts_sent;
  65         uint32_t src_mac_addr_l;
  66         uint32_t src_mac_addr_h;
  67         uint32_t dst_mac_addr_l;
  68         uint32_t dst_mac_addr_h;
  69         uint32_t eth_type;
  70         uint32_t hdr_dw[7];
  71         uint32_t start_offset;
  72         uint32_t bytes_per_cycle;
  73 } __attribute__ ((packed));
  74
  75 struct ark_pkt_gen_inst {
  76         struct rte_eth_dev_info *dev_info;
  77         struct ark_pkt_gen_regs *regs;
  78         int l2_mode;
  79         int ordinal;
  80 };
  81
  82 /*  packet generator functions */
  83 ark_pkt_gen_t ark_pktgen_init(void *arg, int ord, int l2_mode);
  84 void ark_pktgen_uninit(ark_pkt_gen_t handle);
  85 void ark_pktgen_run(ark_pkt_gen_t handle);
  86 void ark_pktgen_pause(ark_pkt_gen_t handle);
  87 uint32_t ark_pktgen_paused(ark_pkt_gen_t handle);
  88 uint32_t ark_pktgen_is_gen_forever(ark_pkt_gen_t handle);
  89 uint32_t ark_pktgen_is_running(ark_pkt_gen_t handle);
  90 uint32_t ark_pktgen_tx_done(ark_pkt_gen_t handle);
  91 void ark_pktgen_reset(ark_pkt_gen_t handle);
  92 void ark_pktgen_wait_done(ark_pkt_gen_t handle);
  93 uint32_t ark_pktgen_get_pkts_sent(ark_pkt_gen_t handle);
  94 void ark_pktgen_set_payload_byte(ark_pkt_gen_t handle, uint32_t b);
  95 void ark_pktgen_set_pkt_spacing(ark_pkt_gen_t handle, uint32_t x);
  96 void ark_pktgen_set_pkt_size_min(ark_pkt_gen_t handle, uint32_t x);
  97 void ark_pktgen_set_pkt_size_max(ark_pkt_gen_t handle, uint32_t x);
  98 void ark_pktgen_set_pkt_size_incr(ark_pkt_gen_t handle, uint32_t x);
  99 void ark_pktgen_set_num_pkts(ark_pkt_gen_t handle, uint32_t x);
 100 void ark_pktgen_set_src_mac_addr(ark_pkt_gen_t handle, uint64_t mac_addr);
 101 void ark_pktgen_set_dst_mac_addr(ark_pkt_gen_t handle, uint64_t mac_addr);
 102 void ark_pktgen_set_eth_type(ark_pkt_gen_t handle, uint32_t x);
 103 void ark_pktgen_set_hdr_dW(ark_pkt_gen_t handle, uint32_t *hdr);
 104 void ark_pktgen_set_start_offset(ark_pkt_gen_t handle, uint32_t x);
 105 void ark_pktgen_parse(char *argv);
 106 void ark_pktgen_setup(ark_pkt_gen_t handle);
 107
 108 #endif