From 32ff26393bb2fa40f79aa1c357ef2af8691f912f Mon Sep 17 00:00:00 2001 From: Jerin Jacob Date: Fri, 3 Mar 2017 22:57:59 +0530 Subject: [PATCH] event/octeontx: add SSO HW device operations Signed-off-by: Jerin Jacob Signed-off-by: Santosh Shukla Acked-by: Gage Eads --- drivers/event/octeontx/Makefile | 5 + drivers/event/octeontx/ssovf_evdev.h | 30 ++++++ drivers/event/octeontx/ssovf_worker.c | 33 ++++++ drivers/event/octeontx/ssovf_worker.h | 139 ++++++++++++++++++++++++++ 4 files changed, 207 insertions(+) create mode 100644 drivers/event/octeontx/ssovf_worker.c create mode 100644 drivers/event/octeontx/ssovf_worker.h diff --git a/drivers/event/octeontx/Makefile b/drivers/event/octeontx/Makefile index 57d01ad5da..b26e35beb5 100644 --- a/drivers/event/octeontx/Makefile +++ b/drivers/event/octeontx/Makefile @@ -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 diff --git a/drivers/event/octeontx/ssovf_evdev.h b/drivers/event/octeontx/ssovf_evdev.h index 16bf3d5c6c..16846b8845 100644 --- a/drivers/event/octeontx/ssovf_evdev.h +++ b/drivers/event/octeontx/ssovf_evdev.h @@ -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; diff --git a/drivers/event/octeontx/ssovf_worker.c b/drivers/event/octeontx/ssovf_worker.c new file mode 100644 index 0000000000..14f3426198 --- /dev/null +++ b/drivers/event/octeontx/ssovf_worker.c @@ -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" diff --git a/drivers/event/octeontx/ssovf_worker.h b/drivers/event/octeontx/ssovf_worker.h new file mode 100644 index 0000000000..300dfae839 --- /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 + +#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)) + ; +} -- 2.20.1