net/ice: fix Tx threshold setup
[dpdk.git] / drivers / event / octeontx / ssovf_worker.h
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 -
34                         OCTTX_PACKET_WQE_SKIP);
35         rte_prefetch_non_temporal(mbuf);
36         mbuf->packet_type =
37                 ptype_table[wqe->s.w2.lcty][wqe->s.w2.lety][wqe->s.w2.lfty];
38         mbuf->data_off = RTE_PTR_DIFF(wqe->s.w3.addr, mbuf->buf_addr);
39         mbuf->pkt_len = wqe->s.w1.len;
40         mbuf->data_len = mbuf->pkt_len;
41         mbuf->nb_segs = 1;
42         mbuf->ol_flags = 0;
43         mbuf->port = rte_octeontx_pchan_map[port_info >> 4][port_info & 0xF];
44         rte_mbuf_refcnt_set(mbuf, 1);
45
46         return mbuf;
47 }
48
49 static __rte_always_inline uint16_t
50 ssows_get_work(struct ssows *ws, struct rte_event *ev)
51 {
52         uint64_t get_work0, get_work1;
53         uint64_t sched_type_queue;
54
55         ssovf_load_pair(get_work0, get_work1, ws->getwork);
56
57         sched_type_queue = (get_work0 >> 32) & 0xfff;
58         ws->cur_tt = sched_type_queue & 0x3;
59         ws->cur_grp = sched_type_queue >> 2;
60         sched_type_queue = sched_type_queue << 38;
61         ev->event = sched_type_queue | (get_work0 & 0xffffffff);
62         if (get_work1 && ev->event_type == RTE_EVENT_TYPE_ETHDEV) {
63                 ev->mbuf = ssovf_octeontx_wqe_to_pkt(get_work1,
64                                 (ev->event >> 20) & 0x7F);
65         } else {
66                 ev->u64 = get_work1;
67         }
68
69         return !!get_work1;
70 }
71
72 static __rte_always_inline void
73 ssows_add_work(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
74                         const uint8_t new_tt, const uint8_t grp)
75 {
76         uint64_t add_work0;
77
78         add_work0 = tag | ((uint64_t)(new_tt) << 32);
79         ssovf_store_pair(add_work0, event_ptr, ws->grps[grp]);
80 }
81
82 static __rte_always_inline void
83 ssows_swtag_full(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
84                         const uint8_t new_tt, const uint8_t grp)
85 {
86         uint64_t swtag_full0;
87
88         swtag_full0 = tag | ((uint64_t)(new_tt & 0x3) << 32) |
89                                 ((uint64_t)grp << 34);
90         ssovf_store_pair(swtag_full0, event_ptr, (ws->base +
91                                 SSOW_VHWS_OP_SWTAG_FULL0));
92 }
93
94 static __rte_always_inline void
95 ssows_swtag_desched(struct ssows *ws, uint32_t tag, uint8_t new_tt, uint8_t grp)
96 {
97         uint64_t val;
98
99         val = tag | ((uint64_t)(new_tt & 0x3) << 32) | ((uint64_t)grp << 34);
100         ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_DESCHED);
101 }
102
103 static __rte_always_inline void
104 ssows_swtag_norm(struct ssows *ws, uint32_t tag, uint8_t new_tt)
105 {
106         uint64_t val;
107
108         val = tag | ((uint64_t)(new_tt & 0x3) << 32);
109         ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_NORM);
110 }
111
112 static __rte_always_inline void
113 ssows_swtag_untag(struct ssows *ws)
114 {
115         ssovf_write64(0, ws->base + SSOW_VHWS_OP_SWTAG_UNTAG);
116         ws->cur_tt = SSO_SYNC_UNTAGGED;
117 }
118
119 static __rte_always_inline void
120 ssows_upd_wqp(struct ssows *ws, uint8_t grp, uint64_t event_ptr)
121 {
122         ssovf_store_pair((uint64_t)grp << 34, event_ptr, (ws->base +
123                                 SSOW_VHWS_OP_UPD_WQP_GRP0));
124 }
125
126 static __rte_always_inline void
127 ssows_desched(struct ssows *ws)
128 {
129         ssovf_write64(0, ws->base + SSOW_VHWS_OP_DESCHED);
130 }
131
132 static __rte_always_inline void
133 ssows_swtag_wait(struct ssows *ws)
134 {
135         /* Wait for the SWTAG/SWTAG_FULL operation */
136         while (ssovf_read64(ws->base + SSOW_VHWS_SWTP))
137         ;
138 }