1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017 Cavium, Inc
5 #include <rte_common.h>
6 #include <rte_branch_prediction.h>
8 #include <octeontx_mbox.h>
10 #include "ssovf_evdev.h"
11 #include "octeontx_rxtx.h"
21 #define __hot __attribute__((hot))
26 static __rte_always_inline struct rte_mbuf *
27 ssovf_octeontx_wqe_to_pkt(uint64_t work, uint16_t port_info)
29 struct rte_mbuf *mbuf;
30 octtx_wqe_t *wqe = (octtx_wqe_t *)(uintptr_t)work;
32 /* Get mbuf from wqe */
33 mbuf = (struct rte_mbuf *)((uintptr_t)wqe - OCTTX_PACKET_WQE_SKIP);
34 rte_prefetch_non_temporal(mbuf);
36 ptype_table[wqe->s.w2.lcty][wqe->s.w2.lety][wqe->s.w2.lfty];
37 mbuf->data_off = RTE_PTR_DIFF(wqe->s.w3.addr, mbuf->buf_addr);
38 mbuf->pkt_len = wqe->s.w1.len;
39 mbuf->data_len = mbuf->pkt_len;
42 mbuf->port = rte_octeontx_pchan_map[port_info >> 4][port_info & 0xF];
43 rte_mbuf_refcnt_set(mbuf, 1);
48 static __rte_always_inline void
49 ssovf_octeontx_wqe_free(uint64_t work)
51 octtx_wqe_t *wqe = (octtx_wqe_t *)(uintptr_t)work;
52 struct rte_mbuf *mbuf;
54 mbuf = (struct rte_mbuf *)((uintptr_t)wqe - OCTTX_PACKET_WQE_SKIP);
55 rte_pktmbuf_free(mbuf);
58 static __rte_always_inline uint16_t
59 ssows_get_work(struct ssows *ws, struct rte_event *ev)
61 uint64_t get_work0, get_work1;
62 uint64_t sched_type_queue;
64 ssovf_load_pair(get_work0, get_work1, ws->getwork);
66 sched_type_queue = (get_work0 >> 32) & 0xfff;
67 ws->cur_tt = sched_type_queue & 0x3;
68 ws->cur_grp = sched_type_queue >> 2;
69 sched_type_queue = sched_type_queue << 38;
70 ev->event = sched_type_queue | (get_work0 & 0xffffffff);
72 if (get_work1 && ev->event_type == RTE_EVENT_TYPE_ETHDEV) {
73 ev->mbuf = ssovf_octeontx_wqe_to_pkt(get_work1,
74 (ev->event >> 20) & 0x7F);
75 } else if (unlikely((get_work0 & 0xFFFFFFFF) == 0xFFFFFFFF)) {
76 ssovf_octeontx_wqe_free(get_work1);
85 static __rte_always_inline void
86 ssows_add_work(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
87 const uint8_t new_tt, const uint8_t grp)
91 add_work0 = tag | ((uint64_t)(new_tt) << 32);
92 ssovf_store_pair(add_work0, event_ptr, ws->grps[grp]);
95 static __rte_always_inline void
96 ssows_swtag_full(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
97 const uint8_t new_tt, const uint8_t grp)
101 swtag_full0 = tag | ((uint64_t)(new_tt & 0x3) << 32) |
102 ((uint64_t)grp << 34);
103 ssovf_store_pair(swtag_full0, event_ptr, (ws->base +
104 SSOW_VHWS_OP_SWTAG_FULL0));
107 static __rte_always_inline void
108 ssows_swtag_desched(struct ssows *ws, uint32_t tag, uint8_t new_tt, uint8_t grp)
112 val = tag | ((uint64_t)(new_tt & 0x3) << 32) | ((uint64_t)grp << 34);
113 ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_DESCHED);
116 static __rte_always_inline void
117 ssows_swtag_norm(struct ssows *ws, uint32_t tag, uint8_t new_tt)
121 val = tag | ((uint64_t)(new_tt & 0x3) << 32);
122 ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_NORM);
125 static __rte_always_inline void
126 ssows_swtag_untag(struct ssows *ws)
128 ssovf_write64(0, ws->base + SSOW_VHWS_OP_SWTAG_UNTAG);
129 ws->cur_tt = SSO_SYNC_UNTAGGED;
132 static __rte_always_inline void
133 ssows_upd_wqp(struct ssows *ws, uint8_t grp, uint64_t event_ptr)
135 ssovf_store_pair((uint64_t)grp << 34, event_ptr, (ws->base +
136 SSOW_VHWS_OP_UPD_WQP_GRP0));
139 static __rte_always_inline void
140 ssows_desched(struct ssows *ws)
142 ssovf_write64(0, ws->base + SSOW_VHWS_OP_DESCHED);
145 static __rte_always_inline void
146 ssows_swtag_wait(struct ssows *ws)
148 /* Wait for the SWTAG/SWTAG_FULL operation */
149 while (ssovf_read64(ws->base + SSOW_VHWS_SWTP))