4 * Copyright (C) Cavium networks Ltd. 2017.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
16 * * Neither the name of Cavium networks nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <rte_common.h>
36 #include "ssovf_evdev.h"
46 #define force_inline inline __attribute__((always_inline))
50 #define __hot __attribute__((hot))
55 static force_inline uint16_t
56 ssows_get_work(struct ssows *ws, struct rte_event *ev)
58 uint64_t get_work0, get_work1;
59 uint64_t sched_type_queue;
61 ssovf_load_pair(get_work0, get_work1, ws->getwork);
63 sched_type_queue = (get_work0 >> 32) & 0xfff;
64 ws->cur_tt = sched_type_queue & 0x3;
65 ws->cur_grp = sched_type_queue >> 2;
66 sched_type_queue = sched_type_queue << 38;
68 ev->event = sched_type_queue | (get_work0 & 0xffffffff);
73 static force_inline void
74 ssows_add_work(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
75 const uint8_t new_tt, const uint8_t grp)
79 add_work0 = tag | ((uint64_t)(new_tt) << 32);
80 ssovf_store_pair(add_work0, event_ptr, ws->grps[grp]);
83 static force_inline void
84 ssows_swtag_full(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
85 const uint8_t new_tt, const uint8_t grp)
89 swtag_full0 = tag | ((uint64_t)(new_tt & 0x3) << 32) |
90 ((uint64_t)grp << 34);
91 ssovf_store_pair(swtag_full0, event_ptr, (ws->base +
92 SSOW_VHWS_OP_SWTAG_FULL0));
95 static force_inline void
96 ssows_swtag_desched(struct ssows *ws, uint32_t tag, uint8_t new_tt, uint8_t grp)
100 val = tag | ((uint64_t)(new_tt & 0x3) << 32) | ((uint64_t)grp << 34);
101 ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_DESCHED);
104 static force_inline void
105 ssows_swtag_norm(struct ssows *ws, uint32_t tag, uint8_t new_tt)
109 val = tag | ((uint64_t)(new_tt & 0x3) << 32);
110 ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_NORM);
113 static force_inline void
114 ssows_swtag_untag(struct ssows *ws)
116 ssovf_write64(0, ws->base + SSOW_VHWS_OP_SWTAG_UNTAG);
117 ws->cur_tt = SSO_SYNC_UNTAGGED;
120 static force_inline void
121 ssows_upd_wqp(struct ssows *ws, uint8_t grp, uint64_t event_ptr)
123 ssovf_store_pair((uint64_t)grp << 34, event_ptr, (ws->base +
124 SSOW_VHWS_OP_UPD_WQP_GRP0));
127 static force_inline void
128 ssows_desched(struct ssows *ws)
130 ssovf_write64(0, ws->base + SSOW_VHWS_OP_DESCHED);
133 static force_inline void
134 ssows_swtag_wait(struct ssows *ws)
136 /* Wait for the SWTAG/SWTAG_FULL operation */
137 while (ssovf_read64(ws->base + SSOW_VHWS_SWTP))