[dpdk-dev] [PATCH 34/44] event/octeontx2: allow adapters to resize inflight buffers

[<pbhagavatula@marvell.com>]

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Add internal SSO functions to allow event adapters to resize SSO buffers
that are used to hold in-flight events in DRAM.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 drivers/event/octeontx2/Makefile           |  1 +
 drivers/event/octeontx2/meson.build        |  1 +
 drivers/event/octeontx2/otx2_evdev.c       | 31 ++++++++++++++++++++++
 drivers/event/octeontx2/otx2_evdev.h       |  5 ++++
 drivers/event/octeontx2/otx2_evdev_adptr.c | 19 +++++++++++++
 drivers/event/octeontx2/otx2_tim_evdev.c   |  5 ++++
 6 files changed, 62 insertions(+)
 create mode 100644 drivers/event/octeontx2/otx2_evdev_adptr.c

diff --git a/drivers/event/octeontx2/Makefile b/drivers/event/octeontx2/Makefile
index 2290622dd..6f8d9fe2f 100644
--- a/drivers/event/octeontx2/Makefile
+++ b/drivers/event/octeontx2/Makefile
@@ -33,6 +33,7 @@ LIBABIVER := 1
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_worker_dual.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_worker.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev_adptr.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_tim_evdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev_selftest.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev_irq.c
diff --git a/drivers/event/octeontx2/meson.build b/drivers/event/octeontx2/meson.build
index ad7f2e084..c709b5e69 100644
--- a/drivers/event/octeontx2/meson.build
+++ b/drivers/event/octeontx2/meson.build
@@ -5,6 +5,7 @@
 sources = files('otx2_worker.c',
 		'otx2_worker_dual.c',
 		'otx2_evdev.c',
+		'otx2_evdev_adptr.c',
 		'otx2_evdev_irq.c',
 		'otx2_evdev_selftest.c',
 		'otx2_tim_evdev.c',
diff --git a/drivers/event/octeontx2/otx2_evdev.c b/drivers/event/octeontx2/otx2_evdev.c
index 86b9fee97..534ac4a6b 100644
--- a/drivers/event/octeontx2/otx2_evdev.c
+++ b/drivers/event/octeontx2/otx2_evdev.c
@@ -529,6 +529,9 @@ sso_xaq_allocate(struct otx2_sso_evdev *dev)
 	xaq_cnt = dev->nb_event_queues * OTX2_SSO_XAQ_CACHE_CNT;
 	if (dev->xae_cnt)
 		xaq_cnt += dev->xae_cnt / dev->xae_waes;
+	else if (dev->adptr_xae_cnt)
+		xaq_cnt += (dev->adptr_xae_cnt / dev->xae_waes) +
+			(OTX2_SSO_XAQ_SLACK * dev->nb_event_queues);
 	else
 		xaq_cnt += (dev->iue / dev->xae_waes) +
 			(OTX2_SSO_XAQ_SLACK * dev->nb_event_queues);
@@ -1025,6 +1028,34 @@ sso_cleanup(struct rte_eventdev *event_dev, uint8_t enable)
 	otx2_mbox_process(dev->mbox);
 }
 
+int
+sso_xae_reconfigure(struct rte_eventdev *event_dev)
+{
+	struct otx2_sso_evdev *dev = sso_pmd_priv(event_dev);
+	struct rte_mempool *prev_xaq_pool;
+	int rc = 0;
+
+	if (event_dev->data->dev_started)
+		sso_cleanup(event_dev, 0);
+
+	prev_xaq_pool = dev->xaq_pool;
+	dev->xaq_pool = NULL;
+	sso_xaq_allocate(dev);
+	rc = sso_ggrp_alloc_xaq(dev);
+	if (rc < 0) {
+		otx2_err("failed to alloc xaq to ggrp %d", rc);
+		rte_mempool_free(prev_xaq_pool);
+		return rc;
+	}
+
+	rte_mempool_free(prev_xaq_pool);
+	rte_mb();
+	if (event_dev->data->dev_started)
+		sso_cleanup(event_dev, 1);
+
+	return 0;
+}
+
 static int
 otx2_sso_start(struct rte_eventdev *event_dev)
 {
diff --git a/drivers/event/octeontx2/otx2_evdev.h b/drivers/event/octeontx2/otx2_evdev.h
index cc70158b5..eeb65f03f 100644
--- a/drivers/event/octeontx2/otx2_evdev.h
+++ b/drivers/event/octeontx2/otx2_evdev.h
@@ -114,6 +114,7 @@ struct otx2_sso_evdev {
 	uint64_t nb_xaq_cfg;
 	rte_iova_t fc_iova;
 	struct rte_mempool *xaq_pool;
+	uint32_t adptr_xae_cnt;
 	/* Dev args */
 	uint8_t dual_ws;
 	uint8_t selftest;
@@ -228,6 +229,10 @@ uint16_t otx2_ssogws_dual_deq_timeout(void *port, struct rte_event *ev,
 uint16_t otx2_ssogws_dual_deq_timeout_burst(void *port, struct rte_event ev[],
 					    uint16_t nb_events,
 					    uint64_t timeout_ticks);
+
+void sso_updt_xae_cnt(struct otx2_sso_evdev *dev, void *data,
+		      uint32_t event_type);
+int sso_xae_reconfigure(struct rte_eventdev *event_dev);
 void sso_fastpath_fns_set(struct rte_eventdev *event_dev);
 /* Clean up API's */
 typedef void (*otx2_handle_event_t)(void *arg, struct rte_event ev);
diff --git a/drivers/event/octeontx2/otx2_evdev_adptr.c b/drivers/event/octeontx2/otx2_evdev_adptr.c
new file mode 100644
index 000000000..810722f89
--- /dev/null
+++ b/drivers/event/octeontx2/otx2_evdev_adptr.c
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+
+#include "otx2_evdev.h"
+
+void
+sso_updt_xae_cnt(struct otx2_sso_evdev *dev, void *data, uint32_t event_type)
+{
+	switch (event_type) {
+	case RTE_EVENT_TYPE_TIMER:
+	{
+		dev->adptr_xae_cnt += (*(uint64_t *)data);
+		break;
+	}
+	default:
+		break;
+	}
+}
diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c b/drivers/event/octeontx2/otx2_tim_evdev.c
index cf3f29880..d660cde9e 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.c
+++ b/drivers/event/octeontx2/otx2_tim_evdev.c
@@ -314,6 +314,11 @@ otx2_tim_ring_create(struct rte_event_timer_adapter *adptr)
 		     tim_ring->base + TIM_LF_RING_BASE);
 	otx2_write64(tim_ring->aura, tim_ring->base + TIM_LF_RING_AURA);
 
+	/* Update SSO xae count. */
+	sso_updt_xae_cnt(sso_pmd_priv(dev->event_dev), (void *)&nb_timers,
+			 RTE_EVENT_TYPE_TIMER);
+	sso_xae_reconfigure(dev->event_dev);
+
 	return rc;
 
 chnk_mem_err:
-- 
2.21.0