diff options
Diffstat (limited to 'drivers/event/octeontx/ssovf_worker.h')
| -rw-r--r-- | drivers/event/octeontx/ssovf_worker.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/event/octeontx/ssovf_worker.h b/drivers/event/octeontx/ssovf_worker.h new file mode 100644 index 00000000..300dfae8 --- /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)) + ; +} |