1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2017 Cavium, Inc 3 */ 4 5 #include <rte_common.h> 6 #include <rte_branch_prediction.h> 7 8 #include <octeontx_mbox.h> 9 10 #include "ssovf_evdev.h" 11 #include "octeontx_rxtx.h" 12 13 enum { 14 SSO_SYNC_ORDERED, 15 SSO_SYNC_ATOMIC, 16 SSO_SYNC_UNTAGGED, 17 SSO_SYNC_EMPTY 18 }; 19 20 #ifndef __hot 21 #define __hot __attribute__((hot)) 22 #endif 23 24 /* SSO Operations */ 25 26 static __rte_always_inline struct rte_mbuf * 27 ssovf_octeontx_wqe_to_pkt(uint64_t work, uint16_t port_info) 28 { 29 struct rte_mbuf *mbuf; 30 octtx_wqe_t *wqe = (octtx_wqe_t *)(uintptr_t)work; 31 32 /* Get mbuf from wqe */ 33 mbuf = (struct rte_mbuf *)((uintptr_t)wqe - OCTTX_PACKET_WQE_SKIP); 34 rte_prefetch_non_temporal(mbuf); 35 mbuf->packet_type = 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; 40 mbuf->nb_segs = 1; 41 mbuf->ol_flags = 0; 42 mbuf->port = rte_octeontx_pchan_map[port_info >> 4][port_info & 0xF]; 43 rte_mbuf_refcnt_set(mbuf, 1); 44 45 return mbuf; 46 } 47 48 static __rte_always_inline void 49 ssovf_octeontx_wqe_free(uint64_t work) 50 { 51 octtx_wqe_t *wqe = (octtx_wqe_t *)(uintptr_t)work; 52 struct rte_mbuf *mbuf; 53 54 mbuf = (struct rte_mbuf *)((uintptr_t)wqe - OCTTX_PACKET_WQE_SKIP); 55 rte_pktmbuf_free(mbuf); 56 } 57 58 static __rte_always_inline uint16_t 59 ssows_get_work(struct ssows *ws, struct rte_event *ev) 60 { 61 uint64_t get_work0, get_work1; 62 uint64_t sched_type_queue; 63 64 ssovf_load_pair(get_work0, get_work1, ws->getwork); 65 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); 71 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); 77 return 0; 78 } else { 79 ev->u64 = get_work1; 80 } 81 82 return !!get_work1; 83 } 84 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) 88 { 89 uint64_t add_work0; 90 91 add_work0 = tag | ((uint64_t)(new_tt) << 32); 92 ssovf_store_pair(add_work0, event_ptr, ws->grps[grp]); 93 } 94 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) 98 { 99 uint64_t swtag_full0; 100 101 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)); 105 } 106 107 static __rte_always_inline void 108 ssows_swtag_desched(struct ssows *ws, uint32_t tag, uint8_t new_tt, uint8_t grp) 109 { 110 uint64_t val; 111 112 val = tag | ((uint64_t)(new_tt & 0x3) << 32) | ((uint64_t)grp << 34); 113 ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_DESCHED); 114 } 115 116 static __rte_always_inline void 117 ssows_swtag_norm(struct ssows *ws, uint32_t tag, uint8_t new_tt) 118 { 119 uint64_t val; 120 121 val = tag | ((uint64_t)(new_tt & 0x3) << 32); 122 ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_NORM); 123 } 124 125 static __rte_always_inline void 126 ssows_swtag_untag(struct ssows *ws) 127 { 128 ssovf_write64(0, ws->base + SSOW_VHWS_OP_SWTAG_UNTAG); 129 ws->cur_tt = SSO_SYNC_UNTAGGED; 130 } 131 132 static __rte_always_inline void 133 ssows_upd_wqp(struct ssows *ws, uint8_t grp, uint64_t event_ptr) 134 { 135 ssovf_store_pair((uint64_t)grp << 34, event_ptr, (ws->base + 136 SSOW_VHWS_OP_UPD_WQP_GRP0)); 137 } 138 139 static __rte_always_inline void 140 ssows_desched(struct ssows *ws) 141 { 142 ssovf_write64(0, ws->base + SSOW_VHWS_OP_DESCHED); 143 } 144 145 static __rte_always_inline void 146 ssows_swtag_wait(struct ssows *ws) 147 { 148 /* Wait for the SWTAG/SWTAG_FULL operation */ 149 while (ssovf_read64(ws->base + SSOW_VHWS_SWTP)) 150 ; 151 } 152