[dpdk-dev] [PATCH v3 1/6] event/octeontx2: add event eth Rx adapter support

[<pbhagavatula@marvell.com>]

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Add event eth Rx adapter capabilities, queue add and delete functions.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
 drivers/event/octeontx2/Makefile           |   4 +-
 drivers/event/octeontx2/meson.build        |   2 +-
 drivers/event/octeontx2/otx2_evdev.c       |   4 +
 drivers/event/octeontx2/otx2_evdev.h       |  15 ++
 drivers/event/octeontx2/otx2_evdev_adptr.c | 254 +++++++++++++++++++++
 5 files changed, 276 insertions(+), 3 deletions(-)

diff --git a/drivers/event/octeontx2/Makefile b/drivers/event/octeontx2/Makefile
index d01da6b11..20d7c2fee 100644
--- a/drivers/event/octeontx2/Makefile
+++ b/drivers/event/octeontx2/Makefile
@@ -40,7 +40,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev_selftest.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev_irq.c
 
 LDLIBS += -lrte_eal -lrte_bus_pci -lrte_pci -lrte_kvargs
-LDLIBS += -lrte_mempool -lrte_eventdev -lrte_mbuf
-LDLIBS += -lrte_common_octeontx2 -lrte_mempool_octeontx2
+LDLIBS += -lrte_mempool -lrte_eventdev -lrte_mbuf -lrte_ethdev
+LDLIBS += -lrte_common_octeontx2 -lrte_mempool_octeontx2 -lrte_pmd_octeontx2
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/event/octeontx2/meson.build b/drivers/event/octeontx2/meson.build
index bdb5beed6..e94bc5944 100644
--- a/drivers/event/octeontx2/meson.build
+++ b/drivers/event/octeontx2/meson.build
@@ -26,4 +26,4 @@ foreach flag: extra_flags
 	endif
 endforeach
 
-deps += ['bus_pci', 'common_octeontx2', 'mempool_octeontx2']
+deps += ['bus_pci', 'common_octeontx2', 'mempool_octeontx2', 'pmd_octeontx2']
diff --git a/drivers/event/octeontx2/otx2_evdev.c b/drivers/event/octeontx2/otx2_evdev.c
index 914869b6c..2956a572d 100644
--- a/drivers/event/octeontx2/otx2_evdev.c
+++ b/drivers/event/octeontx2/otx2_evdev.c
@@ -1123,6 +1123,10 @@ static struct rte_eventdev_ops otx2_sso_ops = {
 	.port_unlink      = otx2_sso_port_unlink,
 	.timeout_ticks    = otx2_sso_timeout_ticks,
 
+	.eth_rx_adapter_caps_get  = otx2_sso_rx_adapter_caps_get,
+	.eth_rx_adapter_queue_add = otx2_sso_rx_adapter_queue_add,
+	.eth_rx_adapter_queue_del = otx2_sso_rx_adapter_queue_del,
+
 	.timer_adapter_caps_get = otx2_tim_caps_get,
 
 	.xstats_get       = otx2_sso_xstats_get,
diff --git a/drivers/event/octeontx2/otx2_evdev.h b/drivers/event/octeontx2/otx2_evdev.h
index ba3aae5ba..8bee8c737 100644
--- a/drivers/event/octeontx2/otx2_evdev.h
+++ b/drivers/event/octeontx2/otx2_evdev.h
@@ -6,9 +6,12 @@
 #define __OTX2_EVDEV_H__
 
 #include <rte_eventdev.h>
+#include <rte_eventdev_pmd.h>
+#include <rte_event_eth_rx_adapter.h>
 
 #include "otx2_common.h"
 #include "otx2_dev.h"
+#include "otx2_ethdev.h"
 #include "otx2_mempool.h"
 
 #define EVENTDEV_NAME_OCTEONTX2_PMD otx2_eventdev
@@ -249,6 +252,18 @@ 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);
+
+int otx2_sso_rx_adapter_caps_get(const struct rte_eventdev *event_dev,
+				 const struct rte_eth_dev *eth_dev,
+				 uint32_t *caps);
+int otx2_sso_rx_adapter_queue_add(const struct rte_eventdev *event_dev,
+				  const struct rte_eth_dev *eth_dev,
+				  int32_t rx_queue_id,
+		const struct rte_event_eth_rx_adapter_queue_conf *queue_conf);
+int otx2_sso_rx_adapter_queue_del(const struct rte_eventdev *event_dev,
+				  const struct rte_eth_dev *eth_dev,
+				  int32_t rx_queue_id);
+
 /* Clean up API's */
 typedef void (*otx2_handle_event_t)(void *arg, struct rte_event ev);
 void ssogws_flush_events(struct otx2_ssogws *ws, uint8_t queue_id,
diff --git a/drivers/event/octeontx2/otx2_evdev_adptr.c b/drivers/event/octeontx2/otx2_evdev_adptr.c
index 810722f89..836184ac5 100644
--- a/drivers/event/octeontx2/otx2_evdev_adptr.c
+++ b/drivers/event/octeontx2/otx2_evdev_adptr.c
@@ -4,6 +4,197 @@
 
 #include "otx2_evdev.h"
 
+int
+otx2_sso_rx_adapter_caps_get(const struct rte_eventdev *event_dev,
+			     const struct rte_eth_dev *eth_dev, uint32_t *caps)
+{
+	int rc;
+
+	RTE_SET_USED(event_dev);
+	rc = strncmp(eth_dev->device->driver->name, "net_octeontx2", 13);
+	if (rc)
+		*caps = RTE_EVENT_ETH_RX_ADAPTER_SW_CAP;
+	else
+		*caps = RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT;
+
+	return 0;
+}
+
+static inline int
+sso_rxq_enable(struct otx2_eth_dev *dev, uint16_t qid, uint8_t tt, uint8_t ggrp,
+	       uint16_t eth_port_id)
+{
+	struct otx2_mbox *mbox = dev->mbox;
+	struct nix_aq_enq_req *aq;
+	int rc;
+
+	aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+	aq->qidx = qid;
+	aq->ctype = NIX_AQ_CTYPE_CQ;
+	aq->op = NIX_AQ_INSTOP_WRITE;
+
+	aq->cq.ena = 0;
+	aq->cq.caching = 0;
+
+	otx2_mbox_memset(&aq->cq_mask, 0, sizeof(struct nix_cq_ctx_s));
+	aq->cq_mask.ena = ~(aq->cq_mask.ena);
+	aq->cq_mask.caching = ~(aq->cq_mask.caching);
+
+	rc = otx2_mbox_process(mbox);
+	if (rc < 0) {
+		otx2_err("Failed to disable cq context");
+		goto fail;
+	}
+
+	aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+	aq->qidx = qid;
+	aq->ctype = NIX_AQ_CTYPE_RQ;
+	aq->op = NIX_AQ_INSTOP_WRITE;
+
+	aq->rq.sso_ena = 1;
+	aq->rq.sso_tt = tt;
+	aq->rq.sso_grp = ggrp;
+	aq->rq.ena_wqwd = 1;
+	/* Mbuf Header generation :
+	 * > FIRST_SKIP is a super set of WQE_SKIP, dont modify first skip as
+	 * it already has data related to mbuf size, headroom, private area.
+	 * > Using WQE_SKIP we can directly assign
+	 *		mbuf = wqe - sizeof(struct mbuf);
+	 * so that mbuf header will not have unpredicted values while headroom
+	 * and private data starts at the begining of wqe_data.
+	 */
+	aq->rq.wqe_skip = 1;
+	aq->rq.wqe_caching = 1;
+	aq->rq.spb_ena = 0;
+	aq->rq.flow_tagw = 20; /* 20-bits */
+
+	/* Flow Tag calculation :
+	 *
+	 * rq_tag <31:24> = good/bad_tag<8:0>;
+	 * rq_tag  <23:0> = [ltag]
+	 *
+	 * flow_tag_mask<31:0> =  (1 << flow_tagw) - 1; <31:20>
+	 * tag<31:0> = (~flow_tag_mask & rq_tag) | (flow_tag_mask & flow_tag);
+	 *
+	 * Setup :
+	 * ltag<23:0> = (eth_port_id & 0xF) << 20;
+	 * good/bad_tag<8:0> =
+	 *	((eth_port_id >> 4) & 0xF) | (RTE_EVENT_TYPE_ETHDEV << 4);
+	 *
+	 * TAG<31:0> on getwork = <31:28>(RTE_EVENT_TYPE_ETHDEV) |
+	 *				<27:20> (eth_port_id) | <20:0> [TAG]
+	 */
+
+	aq->rq.ltag = (eth_port_id & 0xF) << 20;
+	aq->rq.good_utag = ((eth_port_id >> 4) & 0xF) |
+				(RTE_EVENT_TYPE_ETHDEV << 4);
+	aq->rq.bad_utag = aq->rq.good_utag;
+
+	aq->rq.ena = 0;		 /* Don't enable RQ yet */
+	aq->rq.pb_caching = 0x2; /* First cache aligned block to LLC */
+	aq->rq.xqe_imm_size = 0; /* No pkt data copy to CQE */
+
+	otx2_mbox_memset(&aq->rq_mask, 0, sizeof(struct nix_rq_ctx_s));
+	/* mask the bits to write. */
+	aq->rq_mask.sso_ena      = ~(aq->rq_mask.sso_ena);
+	aq->rq_mask.sso_tt       = ~(aq->rq_mask.sso_tt);
+	aq->rq_mask.sso_grp      = ~(aq->rq_mask.sso_grp);
+	aq->rq_mask.ena_wqwd     = ~(aq->rq_mask.ena_wqwd);
+	aq->rq_mask.wqe_skip     = ~(aq->rq_mask.wqe_skip);
+	aq->rq_mask.wqe_caching  = ~(aq->rq_mask.wqe_caching);
+	aq->rq_mask.spb_ena      = ~(aq->rq_mask.spb_ena);
+	aq->rq_mask.flow_tagw    = ~(aq->rq_mask.flow_tagw);
+	aq->rq_mask.ltag         = ~(aq->rq_mask.ltag);
+	aq->rq_mask.good_utag    = ~(aq->rq_mask.good_utag);
+	aq->rq_mask.bad_utag     = ~(aq->rq_mask.bad_utag);
+	aq->rq_mask.ena          = ~(aq->rq_mask.ena);
+	aq->rq_mask.pb_caching   = ~(aq->rq_mask.pb_caching);
+	aq->rq_mask.xqe_imm_size = ~(aq->rq_mask.xqe_imm_size);
+
+	rc = otx2_mbox_process(mbox);
+	if (rc < 0) {
+		otx2_err("Failed to init rx adapter context");
+		goto fail;
+	}
+
+	return 0;
+fail:
+	return rc;
+}
+
+static inline int
+sso_rxq_disable(struct otx2_eth_dev *dev, uint16_t qid)
+{
+	struct otx2_mbox *mbox = dev->mbox;
+	struct nix_aq_enq_req *aq;
+	int rc;
+
+	aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+	aq->qidx = qid;
+	aq->ctype = NIX_AQ_CTYPE_CQ;
+	aq->op = NIX_AQ_INSTOP_INIT;
+
+	aq->cq.ena = 1;
+	aq->cq.caching = 1;
+
+	otx2_mbox_memset(&aq->cq_mask, 0, sizeof(struct nix_cq_ctx_s));
+	aq->cq_mask.ena = ~(aq->cq_mask.ena);
+	aq->cq_mask.caching = ~(aq->cq_mask.caching);
+
+	rc = otx2_mbox_process(mbox);
+	if (rc < 0) {
+		otx2_err("Failed to init cq context");
+		goto fail;
+	}
+
+	aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+	aq->qidx = qid;
+	aq->ctype = NIX_AQ_CTYPE_RQ;
+	aq->op = NIX_AQ_INSTOP_WRITE;
+
+	aq->rq.sso_ena = 0;
+	aq->rq.sso_tt = SSO_TT_UNTAGGED;
+	aq->rq.sso_grp = 0;
+	aq->rq.ena_wqwd = 0;
+	aq->rq.wqe_caching = 0;
+	aq->rq.wqe_skip = 0;
+	aq->rq.spb_ena = 0;
+	aq->rq.flow_tagw = 0x20;
+	aq->rq.ltag = 0;
+	aq->rq.good_utag = 0;
+	aq->rq.bad_utag = 0;
+	aq->rq.ena = 1;
+	aq->rq.pb_caching = 0x2; /* First cache aligned block to LLC */
+	aq->rq.xqe_imm_size = 0; /* No pkt data copy to CQE */
+
+	otx2_mbox_memset(&aq->rq_mask, 0, sizeof(struct nix_rq_ctx_s));
+	/* mask the bits to write. */
+	aq->rq_mask.sso_ena      = ~(aq->rq_mask.sso_ena);
+	aq->rq_mask.sso_tt       = ~(aq->rq_mask.sso_tt);
+	aq->rq_mask.sso_grp      = ~(aq->rq_mask.sso_grp);
+	aq->rq_mask.ena_wqwd     = ~(aq->rq_mask.ena_wqwd);
+	aq->rq_mask.wqe_caching  = ~(aq->rq_mask.wqe_caching);
+	aq->rq_mask.wqe_skip     = ~(aq->rq_mask.wqe_skip);
+	aq->rq_mask.spb_ena      = ~(aq->rq_mask.spb_ena);
+	aq->rq_mask.flow_tagw    = ~(aq->rq_mask.flow_tagw);
+	aq->rq_mask.ltag         = ~(aq->rq_mask.ltag);
+	aq->rq_mask.good_utag    = ~(aq->rq_mask.good_utag);
+	aq->rq_mask.bad_utag     = ~(aq->rq_mask.bad_utag);
+	aq->rq_mask.ena          = ~(aq->rq_mask.ena);
+	aq->rq_mask.pb_caching   = ~(aq->rq_mask.pb_caching);
+	aq->rq_mask.xqe_imm_size = ~(aq->rq_mask.xqe_imm_size);
+
+	rc = otx2_mbox_process(mbox);
+	if (rc < 0) {
+		otx2_err("Failed to clear rx adapter context");
+		goto fail;
+	}
+
+	return 0;
+fail:
+	return rc;
+}
+
 void
 sso_updt_xae_cnt(struct otx2_sso_evdev *dev, void *data, uint32_t event_type)
 {
@@ -17,3 +208,66 @@ sso_updt_xae_cnt(struct otx2_sso_evdev *dev, void *data, uint32_t event_type)
 		break;
 	}
 }
+
+int
+otx2_sso_rx_adapter_queue_add(const struct rte_eventdev *event_dev,
+			      const struct rte_eth_dev *eth_dev,
+			      int32_t rx_queue_id,
+		const struct rte_event_eth_rx_adapter_queue_conf *queue_conf)
+{
+	struct otx2_eth_dev *otx2_eth_dev = eth_dev->data->dev_private;
+	uint16_t port = eth_dev->data->port_id;
+	int i, rc;
+
+	RTE_SET_USED(event_dev);
+	rc = strncmp(eth_dev->device->driver->name, "net_octeontx2", 13);
+	if (rc)
+		return -EINVAL;
+
+	if (rx_queue_id < 0) {
+		for (i = 0 ; i < eth_dev->data->nb_rx_queues; i++) {
+			rc |= sso_rxq_enable(otx2_eth_dev, i,
+					     queue_conf->ev.sched_type,
+					     queue_conf->ev.queue_id, port);
+		}
+	} else {
+		rc |= sso_rxq_enable(otx2_eth_dev, (uint16_t)rx_queue_id,
+				     queue_conf->ev.sched_type,
+				     queue_conf->ev.queue_id, port);
+	}
+
+	if (rc < 0) {
+		otx2_err("Failed to configure Rx adapter port=%d, q=%d", port,
+			 queue_conf->ev.queue_id);
+		return rc;
+	}
+
+	return 0;
+}
+
+int
+otx2_sso_rx_adapter_queue_del(const struct rte_eventdev *event_dev,
+			      const struct rte_eth_dev *eth_dev,
+			      int32_t rx_queue_id)
+{
+	struct otx2_eth_dev *dev = eth_dev->data->dev_private;
+	int i, rc;
+
+	RTE_SET_USED(event_dev);
+	rc = strncmp(eth_dev->device->driver->name, "net_octeontx2", 13);
+	if (rc)
+		return -EINVAL;
+
+	if (rx_queue_id < 0) {
+		for (i = 0 ; i < eth_dev->data->nb_rx_queues; i++)
+			rc = sso_rxq_disable(dev, i);
+	} else {
+		rc = sso_rxq_disable(dev, (uint16_t)rx_queue_id);
+	}
+
+	if (rc < 0)
+		otx2_err("Failed to clear Rx adapter config port=%d, q=%d",
+			 eth_dev->data->port_id, rx_queue_id);
+
+	return rc;
+}
-- 
2.22.0