event/octeontx2: add init and fini for SSO object

SSO object needs to be initialized to communicate with the kernel AF
driver through mbox using the common API's.
Also, initialize the internal eventdev structure to defaults.
Attach NPA lf to the PF if needed.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

drivers/event/octeontx2/Makefile

@@ -37,6 +37,6 @@ SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) += otx2_evdev.c
 
 LDLIBS += -lrte_eal -lrte_bus_pci -lrte_pci
 LDLIBS += -lrte_eventdev
-LDLIBS += -lrte_common_octeontx2
+LDLIBS += -lrte_common_octeontx2 -lrte_mempool_octeontx2
 
 include $(RTE_SDK)/mk/rte.lib.mk

drivers/event/octeontx2/meson.build

@@ -18,4 +18,4 @@ foreach flag: extra_flags
 	endif
 endforeach
 
-deps += ['bus_pci', 'common_octeontx2']
+deps += ['bus_pci', 'common_octeontx2', 'mempool_octeontx2']

drivers/event/octeontx2/otx2_evdev.c

@@ -46,22 +46,102 @@ static struct rte_pci_driver pci_sso = {
 int
 otx2_sso_init(struct rte_eventdev *event_dev)
 {
-	RTE_SET_USED(event_dev);
+	struct free_rsrcs_rsp *rsrc_cnt;
+	struct rte_pci_device *pci_dev;
+	struct otx2_sso_evdev *dev;
+	int rc;
+
 	/* For secondary processes, the primary has done all the work */
 	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 		return 0;
 
+	dev = sso_pmd_priv(event_dev);
+
+	pci_dev = container_of(event_dev->dev, struct rte_pci_device, device);
+
+	/* Initialize the base otx2_dev object */
+	rc = otx2_dev_init(pci_dev, dev);
+	if (rc < 0) {
+		otx2_err("Failed to initialize otx2_dev rc=%d", rc);
+		goto error;
+	}
+
+	/* Get SSO and SSOW MSIX rsrc cnt */
+	otx2_mbox_alloc_msg_free_rsrc_cnt(dev->mbox);
+	rc = otx2_mbox_process_msg(dev->mbox, (void *)&rsrc_cnt);
+	if (rc < 0) {
+		otx2_err("Unable to get free rsrc count");
+		goto otx2_dev_uninit;
+	}
+	otx2_sso_dbg("SSO %d SSOW %d NPA %d provisioned", rsrc_cnt->sso,
+		     rsrc_cnt->ssow, rsrc_cnt->npa);
+
+	dev->max_event_ports = RTE_MIN(rsrc_cnt->ssow, OTX2_SSO_MAX_VHWS);
+	dev->max_event_queues = RTE_MIN(rsrc_cnt->sso, OTX2_SSO_MAX_VHGRP);
+	/* Grab the NPA LF if required */
+	rc = otx2_npa_lf_init(pci_dev, dev);
+	if (rc < 0) {
+		otx2_err("Unable to init NPA lf. It might not be provisioned");
+		goto otx2_dev_uninit;
+	}
+
+	dev->drv_inited = true;
+	dev->is_timeout_deq = 0;
+	dev->min_dequeue_timeout_ns = USEC2NSEC(1);
+	dev->max_dequeue_timeout_ns = USEC2NSEC(0x3FF);
+	dev->max_num_events = -1;
+	dev->nb_event_queues = 0;
+	dev->nb_event_ports = 0;
+
+	if (!dev->max_event_ports || !dev->max_event_queues) {
+		otx2_err("Not enough eventdev resource queues=%d ports=%d",
+			 dev->max_event_queues, dev->max_event_ports);
+		rc = -ENODEV;
+		goto otx2_npa_lf_uninit;
+	}
+
+	otx2_sso_pf_func_set(dev->pf_func);
+	otx2_sso_dbg("Initializing %s max_queues=%d max_ports=%d",
+		     event_dev->data->name, dev->max_event_queues,
+		     dev->max_event_ports);
+
+
 	return 0;
+
+otx2_npa_lf_uninit:
+	otx2_npa_lf_fini();
+otx2_dev_uninit:
+	otx2_dev_fini(pci_dev, dev);
+error:
+	return rc;
 }
 
 int
 otx2_sso_fini(struct rte_eventdev *event_dev)
 {
-	RTE_SET_USED(event_dev);
+	struct otx2_sso_evdev *dev = sso_pmd_priv(event_dev);
+	struct rte_pci_device *pci_dev;
+
 	/* For secondary processes, nothing to be done */
 	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 		return 0;
 
+	pci_dev = container_of(event_dev->dev, struct rte_pci_device, device);
+
+	if (!dev->drv_inited)
+		goto dev_fini;
+
+	dev->drv_inited = false;
+	otx2_npa_lf_fini();
+
+dev_fini:
+	if (otx2_npa_lf_active(dev)) {
+		otx2_info("Common resource in use by other devices");
+		return -EAGAIN;
+	}
+
+	otx2_dev_fini(pci_dev, dev);
+
 	return 0;
 }
 

drivers/event/octeontx2/otx2_evdev.h

@@ -8,6 +8,8 @@
 #include <rte_eventdev.h>
 
 #include "otx2_common.h"
+#include "otx2_dev.h"
+#include "otx2_mempool.h"
 
 #define EVENTDEV_NAME_OCTEONTX2_PMD otx2_eventdev
 
@@ -16,8 +18,26 @@
 #define OTX2_SSO_MAX_VHGRP                  RTE_EVENT_MAX_QUEUES_PER_DEV
 #define OTX2_SSO_MAX_VHWS                   (UINT8_MAX)
 
+#define USEC2NSEC(__us)                 ((__us) * 1E3)
+
 struct otx2_sso_evdev {
-};
+	OTX2_DEV; /* Base class */
+	uint8_t max_event_queues;
+	uint8_t max_event_ports;
+	uint8_t is_timeout_deq;
+	uint8_t nb_event_queues;
+	uint8_t nb_event_ports;
+	uint32_t deq_tmo_ns;
+	uint32_t min_dequeue_timeout_ns;
+	uint32_t max_dequeue_timeout_ns;
+	int32_t max_num_events;
+} __rte_cache_aligned;
+
+static inline struct otx2_sso_evdev *
+sso_pmd_priv(const struct rte_eventdev *event_dev)
+{
+	return event_dev->data->dev_private;
+}
 
 /* Init and Fini API's */
 int otx2_sso_init(struct rte_eventdev *event_dev);