Imported Upstream version 17.05

[deb_dpdk.git] / drivers / event / octeontx / ssovf_worker.h

diff --git a/drivers/event/octeontx/ssovf_worker.h b/drivers/event/octeontx/ssovf_worker.h
new file mode 100644 (file)
index 0000000..300dfae
--- /dev/null
+++ b/drivers/event/octeontx/ssovf_worker.h
@@ -0,0 +1,139 @@
+/*
+ *   BSD LICENSE
+ *
+ *   Copyright (C) Cavium networks Ltd. 2017.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Cavium networks nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include <rte_common.h>
+
+#include "ssovf_evdev.h"
+
+enum {
+       SSO_SYNC_ORDERED,
+       SSO_SYNC_ATOMIC,
+       SSO_SYNC_UNTAGGED,
+       SSO_SYNC_EMPTY
+};
+
+#ifndef force_inline
+#define force_inline inline __attribute__((always_inline))
+#endif
+
+#ifndef __hot
+#define __hot  __attribute__((hot))
+#endif
+
+/* SSO Operations */
+
+static force_inline uint16_t
+ssows_get_work(struct ssows *ws, struct rte_event *ev)
+{
+       uint64_t get_work0, get_work1;
+       uint64_t sched_type_queue;
+
+       ssovf_load_pair(get_work0, get_work1, ws->getwork);
+
+       sched_type_queue = (get_work0 >> 32) & 0xfff;
+       ws->cur_tt = sched_type_queue & 0x3;
+       ws->cur_grp = sched_type_queue >> 2;
+       sched_type_queue = sched_type_queue << 38;
+
+       ev->event = sched_type_queue | (get_work0 & 0xffffffff);
+       ev->u64 = get_work1;
+       return !!get_work1;
+}
+
+static force_inline void
+ssows_add_work(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
+                       const uint8_t new_tt, const uint8_t grp)
+{
+       uint64_t add_work0;
+
+       add_work0 = tag | ((uint64_t)(new_tt) << 32);
+       ssovf_store_pair(add_work0, event_ptr, ws->grps[grp]);
+}
+
+static force_inline void
+ssows_swtag_full(struct ssows *ws, const uint64_t event_ptr, const uint32_t tag,
+                       const uint8_t new_tt, const uint8_t grp)
+{
+       uint64_t swtag_full0;
+
+       swtag_full0 = tag | ((uint64_t)(new_tt & 0x3) << 32) |
+                               ((uint64_t)grp << 34);
+       ssovf_store_pair(swtag_full0, event_ptr, (ws->base +
+                               SSOW_VHWS_OP_SWTAG_FULL0));
+}
+
+static force_inline void
+ssows_swtag_desched(struct ssows *ws, uint32_t tag, uint8_t new_tt, uint8_t grp)
+{
+       uint64_t val;
+
+       val = tag | ((uint64_t)(new_tt & 0x3) << 32) | ((uint64_t)grp << 34);
+       ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_DESCHED);
+}
+
+static force_inline void
+ssows_swtag_norm(struct ssows *ws, uint32_t tag, uint8_t new_tt)
+{
+       uint64_t val;
+
+       val = tag | ((uint64_t)(new_tt & 0x3) << 32);
+       ssovf_write64(val, ws->base + SSOW_VHWS_OP_SWTAG_NORM);
+}
+
+static force_inline void
+ssows_swtag_untag(struct ssows *ws)
+{
+       ssovf_write64(0, ws->base + SSOW_VHWS_OP_SWTAG_UNTAG);
+       ws->cur_tt = SSO_SYNC_UNTAGGED;
+}
+
+static force_inline void
+ssows_upd_wqp(struct ssows *ws, uint8_t grp, uint64_t event_ptr)
+{
+       ssovf_store_pair((uint64_t)grp << 34, event_ptr, (ws->base +
+                               SSOW_VHWS_OP_UPD_WQP_GRP0));
+}
+
+static force_inline void
+ssows_desched(struct ssows *ws)
+{
+       ssovf_write64(0, ws->base + SSOW_VHWS_OP_DESCHED);
+}
+
+static force_inline void
+ssows_swtag_wait(struct ssows *ws)
+{
+       /* Wait for the SWTAG/SWTAG_FULL operation */
+       while (ssovf_read64(ws->base + SSOW_VHWS_SWTP))
+       ;
+}