[PATCH v3 4/6] event/cnkx: add pre-schedule support

[pbhagavatula at marvell.com]

From: Pavan Nikhilesh <pbhagavatula at marvell.com>

Add device level and port level pre-schedule
support for cnxk eventdev.

Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
---
 doc/guides/eventdevs/features/cnxk.ini |  1 +
 drivers/event/cnxk/cn10k_eventdev.c    | 40 ++++++++++++++++++++++++--
 drivers/event/cnxk/cnxk_eventdev.c     |  2 --
 drivers/event/cnxk/cnxk_eventdev.h     |  1 -
 4 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/doc/guides/eventdevs/features/cnxk.ini b/doc/guides/eventdevs/features/cnxk.ini
index d1516372fa..5ba528f086 100644
--- a/doc/guides/eventdevs/features/cnxk.ini
+++ b/doc/guides/eventdevs/features/cnxk.ini
@@ -17,6 +17,7 @@ carry_flow_id              = Y
 maintenance_free           = Y
 runtime_queue_attr         = Y
 profile_links              = Y
+preschedule                = Y
 
 [Eth Rx adapter Features]
 internal_port              = Y
diff --git a/drivers/event/cnxk/cn10k_eventdev.c b/drivers/event/cnxk/cn10k_eventdev.c
index 2d7b169974..0624f29a90 100644
--- a/drivers/event/cnxk/cn10k_eventdev.c
+++ b/drivers/event/cnxk/cn10k_eventdev.c
@@ -18,6 +18,27 @@
 #define CN10K_SET_EVDEV_ENQ_OP(dev, enq_op, enq_ops)                           \
 	enq_op = enq_ops[dev->tx_offloads & (NIX_TX_OFFLOAD_MAX - 1)]
 
+static int
+cn10k_sso_hws_preschedule_modify(void *port, rte_event_dev_preschedule_type_t type)
+{
+	struct cn10k_sso_hws *ws = port;
+
+	ws->gw_wdata &= (BIT(19) | BIT(20));
+	switch (type) {
+	default:
+	case RTE_EVENT_DEV_PRESCHEDULE_NONE:
+		break;
+	case RTE_EVENT_DEV_PRESCHEDULE:
+		ws->gw_wdata |= BIT(19);
+		break;
+	case RTE_EVENT_DEV_PRESCHEDULE_ADAPTIVE:
+		ws->gw_wdata |= BIT(19) | BIT(20);
+		break;
+	}
+
+	return 0;
+}
+
 static uint32_t
 cn10k_sso_gw_mode_wdata(struct cnxk_sso_evdev *dev)
 {
@@ -527,6 +548,7 @@ cn10k_sso_fp_fns_set(struct rte_eventdev *event_dev)
 
 	event_dev->dma_enqueue = cn10k_dma_adapter_enqueue;
 	event_dev->profile_switch = cn10k_sso_hws_profile_switch;
+	event_dev->preschedule_modify = cn10k_sso_hws_preschedule_modify;
 #else
 	RTE_SET_USED(event_dev);
 #endif
@@ -541,6 +563,9 @@ cn10k_sso_info_get(struct rte_eventdev *event_dev,
 	dev_info->driver_name = RTE_STR(EVENTDEV_NAME_CN10K_PMD);
 	cnxk_sso_info_get(dev, dev_info);
 	dev_info->max_event_port_enqueue_depth = UINT32_MAX;
+	dev_info->event_dev_cap |= RTE_EVENT_DEV_CAP_EVENT_PRESCHEDULE |
+				   RTE_EVENT_DEV_CAP_EVENT_PRESCHEDULE_ADAPTIVE |
+				   RTE_EVENT_DEV_CAP_EVENT_PER_PORT_PRESCHEDULE;
 }
 
 static int
@@ -566,6 +591,19 @@ cn10k_sso_dev_configure(const struct rte_eventdev *event_dev)
 	if (rc < 0)
 		goto cnxk_rsrc_fini;
 
+	switch (event_dev->data->dev_conf.preschedule_type) {
+	default:
+	case RTE_EVENT_DEV_PRESCHEDULE_NONE:
+		dev->gw_mode = CN10K_GW_MODE_NONE;
+		break;
+	case RTE_EVENT_DEV_PRESCHEDULE:
+		dev->gw_mode = CN10K_GW_MODE_PREF;
+		break;
+	case RTE_EVENT_DEV_PRESCHEDULE_ADAPTIVE:
+		dev->gw_mode = CN10K_GW_MODE_PREF_WFE;
+		break;
+	}
+
 	rc = cnxk_setup_event_ports(event_dev, cn10k_sso_init_hws_mem,
 				    cn10k_sso_hws_setup);
 	if (rc < 0)
@@ -1199,7 +1237,6 @@ cn10k_sso_init(struct rte_eventdev *event_dev)
 		return 0;
 	}
 
-	dev->gw_mode = CN10K_GW_MODE_PREF_WFE;
 	rc = cnxk_sso_init(event_dev);
 	if (rc < 0)
 		return rc;
@@ -1256,7 +1293,6 @@ RTE_PMD_REGISTER_KMOD_DEP(event_cn10k, "vfio-pci");
 RTE_PMD_REGISTER_PARAM_STRING(event_cn10k, CNXK_SSO_XAE_CNT "=<int>"
 			      CNXK_SSO_GGRP_QOS "=<string>"
 			      CNXK_SSO_FORCE_BP "=1"
-			      CN10K_SSO_GW_MODE "=<int>"
 			      CN10K_SSO_STASH "=<string>"
 			      CNXK_TIM_DISABLE_NPA "=1"
 			      CNXK_TIM_CHNK_SLOTS "=<int>"
diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..c1df481827 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -624,8 +624,6 @@ cnxk_sso_parse_devargs(struct cnxk_sso_evdev *dev, struct rte_devargs *devargs)
 			   &dev->force_ena_bp);
 	rte_kvargs_process(kvlist, CN9K_SSO_SINGLE_WS, &parse_kvargs_flag,
 			   &single_ws);
-	rte_kvargs_process(kvlist, CN10K_SSO_GW_MODE, &parse_kvargs_value,
-			   &dev->gw_mode);
 	rte_kvargs_process(kvlist, CN10K_SSO_STASH,
 			   &parse_sso_kvargs_stash_dict, dev);
 	dev->dual_ws = !single_ws;
diff --git a/drivers/event/cnxk/cnxk_eventdev.h b/drivers/event/cnxk/cnxk_eventdev.h
index ece49394e7..f147ef3c78 100644
--- a/drivers/event/cnxk/cnxk_eventdev.h
+++ b/drivers/event/cnxk/cnxk_eventdev.h
@@ -30,7 +30,6 @@
 #define CNXK_SSO_GGRP_QOS  "qos"
 #define CNXK_SSO_FORCE_BP  "force_rx_bp"
 #define CN9K_SSO_SINGLE_WS "single_ws"
-#define CN10K_SSO_GW_MODE  "gw_mode"
 #define CN10K_SSO_STASH	   "stash"
 
 #define CNXK_SSO_MAX_PROFILES 2
-- 
2.25.1