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event/octeontx: add SSO HW device operations

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Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Acked-by: Gage Eads <gage.eads@intel.com>
This commit is contained in:
Jerin Jacob 2017-03-03 22:57:59 +05:30
parent 558413c004
commit 32ff26393b
4 changed files with 207 additions and 0 deletions
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5
drivers/event/octeontx/Makefile
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@ -46,9 +46,14 @@ LIBABIVER := 1
#
# all source are stored in SRCS-y
#
SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_worker.c
SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_evdev.c
SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_probe.c
SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_mbox.c
ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
CFLAGS_ssovf_worker.o += -fno-prefetch-loop-arrays
endif
CFLAGS_ssovf_worker.o += -Ofast
# install this header file
SYMLINK-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF)-include := rte_pmd_octeontx_ssovf.h

30
drivers/event/octeontx/ssovf_evdev.h
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@ -129,6 +129,36 @@
#define ssovf_read64 rte_read64_relaxed
#define ssovf_write64 rte_write64_relaxed
/* ARM64 specific functions */
#if defined(RTE_ARCH_ARM64)
#define ssovf_load_pair(val0, val1, addr) ({ \
asm volatile( \
"ldp %x[x0], %x[x1], [%x[p1]]" \
:[x0]"=r"(val0), [x1]"=r"(val1) \
:[p1]"r"(addr) \
); })
#define ssovf_store_pair(val0, val1, addr) ({ \
asm volatile( \
"stp %x[x0], %x[x1], [%x[p1]]" \
::[x0]"r"(val0), [x1]"r"(val1), [p1]"r"(addr) \
); })
#else /* Un optimized functions for building on non arm64 arch */
#define ssovf_load_pair(val0, val1, addr) \
do { \
val0 = rte_read64(addr); \
val1 = rte_read64(((uint8_t *)addr) + 8); \
} while (0)
#define ssovf_store_pair(val0, val1, addr) \
do { \
rte_write64(val0, addr); \
rte_write64(val1, (((uint8_t *)addr) + 8)); \
} while (0)
#endif
struct ssovf_evdev {
uint8_t max_event_queues;
uint8_t max_event_ports;

33
drivers/event/octeontx/ssovf_worker.c Normal file
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@ -0,0 +1,33 @@
/*
* 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 "ssovf_worker.h"

139
drivers/event/octeontx/ssovf_worker.h Normal file
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@ -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))
;
}