1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2015-2018 Atomic Rules LLC
10 /* ************************************************************************* */
12 ark_ddm_verify(struct ark_ddm_t *ddm)
14 if (sizeof(struct ark_ddm_t) != ARK_DDM_EXPECTED_SIZE) {
15 PMD_DRV_LOG(ERR, "ARK: DDM structure looks incorrect %d vs %zd\n",
16 ARK_DDM_EXPECTED_SIZE, sizeof(struct ark_ddm_t));
20 if (ddm->cfg.const0 != ARK_DDM_CONST) {
21 PMD_DRV_LOG(ERR, "ARK: DDM module not found as expected 0x%08x\n",
29 ark_ddm_start(struct ark_ddm_t *ddm)
35 ark_ddm_stop(struct ark_ddm_t *ddm, const int wait)
40 while (wait && (ddm->cfg.stop_flushed & 0x01) == 0) {
50 ark_ddm_reset(struct ark_ddm_t *ddm)
54 /* reset only works if ddm has stopped properly. */
55 status = ark_ddm_stop(ddm, 1);
58 PMD_DEBUG_LOG(INFO, "%s stop failed doing forced reset\n",
67 ark_ddm_setup(struct ark_ddm_t *ddm, rte_iova_t cons_addr, uint32_t interval)
69 ddm->setup.cons_write_index_addr = cons_addr;
70 ddm->setup.write_index_interval = interval / 4; /* 4 ns period */
74 ark_ddm_stats_reset(struct ark_ddm_t *ddm)
76 ddm->cfg.tlp_stats_clear = 1;
80 ark_ddm_dump(struct ark_ddm_t *ddm, const char *msg)
82 PMD_FUNC_LOG(DEBUG, "%s Stopped: %d\n", msg,
83 ark_ddm_is_stopped(ddm)
88 ark_ddm_dump_stats(struct ark_ddm_t *ddm, const char *msg)
90 struct ark_ddm_stats_t *stats = &ddm->stats;
92 PMD_STATS_LOG(INFO, "DDM Stats: %s"
93 ARK_SU64 ARK_SU64 ARK_SU64
95 "Bytes:", stats->tx_byte_count,
96 "Packets:", stats->tx_pkt_count,
97 "MBufs", stats->tx_mbuf_count);
101 ark_ddm_is_stopped(struct ark_ddm_t *ddm)
103 return (ddm->cfg.stop_flushed & 0x01) != 0;
107 ark_ddm_queue_byte_count(struct ark_ddm_t *ddm)
109 return ddm->queue_stats.byte_count;
113 ark_ddm_queue_pkt_count(struct ark_ddm_t *ddm)
115 return ddm->queue_stats.pkt_count;
119 ark_ddm_queue_reset_stats(struct ark_ddm_t *ddm)
121 ddm->queue_stats.byte_count = 1;