[dpdk-dev] [PATCH 09/39] event/octeontx: add octeontx eventdev driver
Jerin Jacob
jerin.jacob at caviumnetworks.com
Fri Mar 3 18:27:51 CET 2017
This adds the minimal changes to allow a octeontx eventdev
implementation to be compiled, linked and created at run time.
The eventdev does nothing, but can be created via vdev
on command line, e.g.
sudo ./build/app/test -c 0xff00 --vdev=event_octeontx
...
Initializing event_octeontx domain=4 max_queues=64 max_ports=32
RTE>>
Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla at caviumnetworks.com>
---
drivers/event/octeontx/Makefile | 1 +
drivers/event/octeontx/ssovf_evdev.c | 148 +++++++++++++++++++++++++++++++++++
drivers/event/octeontx/ssovf_evdev.h | 23 ++++++
3 files changed, 172 insertions(+)
create mode 100644 drivers/event/octeontx/ssovf_evdev.c
diff --git a/drivers/event/octeontx/Makefile b/drivers/event/octeontx/Makefile
index 3076b85..6e8227b 100644
--- a/drivers/event/octeontx/Makefile
+++ b/drivers/event/octeontx/Makefile
@@ -46,6 +46,7 @@ LIBABIVER := 1
#
# all source are stored in SRCS-y
#
+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
diff --git a/drivers/event/octeontx/ssovf_evdev.c b/drivers/event/octeontx/ssovf_evdev.c
new file mode 100644
index 0000000..b349adc
--- /dev/null
+++ b/drivers/event/octeontx/ssovf_evdev.c
@@ -0,0 +1,148 @@
+/*
+ * 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 <rte_common.h>
+#include <rte_debug.h>
+#include <rte_dev.h>
+#include <rte_eal.h>
+#include <rte_lcore.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_vdev.h>
+
+#include "ssovf_evdev.h"
+
+/* SSOPF Mailbox messages */
+
+struct ssovf_mbox_dev_info {
+ uint64_t min_deq_timeout_ns;
+ uint64_t max_deq_timeout_ns;
+ uint32_t max_num_events;
+};
+
+static int
+ssovf_mbox_dev_info(struct ssovf_mbox_dev_info *info)
+{
+ struct octeontx_mbox_hdr hdr = {0};
+ uint16_t len = sizeof(struct ssovf_mbox_dev_info);
+
+ hdr.coproc = SSO_COPROC;
+ hdr.msg = SSO_GET_DEV_INFO;
+ hdr.vfid = 0;
+
+ memset(info, 0, len);
+ return octeontx_ssovf_mbox_send(&hdr, NULL, 0, info, len);
+}
+
+static int
+ssovf_vdev_probe(const char *name, const char *params)
+{
+ struct octeontx_ssovf_info oinfo;
+ struct ssovf_mbox_dev_info info;
+ struct ssovf_evdev *edev;
+ struct rte_eventdev *eventdev;
+ static int ssovf_init_once;
+ int ret;
+
+ RTE_SET_USED(params);
+
+ /* More than one instance is not supported */
+ if (ssovf_init_once) {
+ ssovf_log_err("Request to create >1 %s instance", name);
+ return -EINVAL;
+ }
+
+ eventdev = rte_event_pmd_vdev_init(name, sizeof(struct ssovf_evdev),
+ rte_socket_id());
+ if (eventdev == NULL) {
+ ssovf_log_err("Failed to create eventdev vdev %s", name);
+ return -ENOMEM;
+ }
+ eventdev->dev_ops = NULL;
+
+ /* For secondary processes, the primary has done all the work */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ ret = octeontx_ssovf_info(&oinfo);
+ if (ret) {
+ ssovf_log_err("Failed to probe and validate ssovfs %d", ret);
+ return ret;
+ }
+
+ edev = ssovf_pmd_priv(eventdev);
+ edev->max_event_ports = oinfo.total_ssowvfs;
+ edev->max_event_queues = oinfo.total_ssovfs;
+ edev->is_timeout_deq = 0;
+
+ ret = ssovf_mbox_dev_info(&info);
+ if (ret < 0 || ret != sizeof(struct ssovf_mbox_dev_info)) {
+ ssovf_log_err("Failed to get mbox devinfo %d", ret);
+ return ret;
+ }
+
+ edev->min_deq_timeout_ns = info.min_deq_timeout_ns;
+ edev->max_deq_timeout_ns = info.max_deq_timeout_ns;
+ edev->max_num_events = info.max_num_events;
+ ssovf_log_dbg("min_deq_tmo=%"PRId64" max_deq_tmo=%"PRId64" max_evts=%d",
+ info.min_deq_timeout_ns, info.max_deq_timeout_ns,
+ info.max_num_events);
+
+ if (!edev->max_event_ports || !edev->max_event_queues) {
+ ssovf_log_err("Not enough eventdev resource queues=%d ports=%d",
+ edev->max_event_queues, edev->max_event_ports);
+ return -ENODEV;
+ }
+
+ ssovf_log_info("Initializing %s domain=%d max_queues=%d max_ports=%d\n",
+ name, oinfo.domain, edev->max_event_queues,
+ edev->max_event_ports);
+
+ ssovf_init_once = 1;
+ return 0;
+}
+
+static int
+ssovf_vdev_remove(const char *name)
+{
+ ssovf_log_info("Closing %s\n", name);
+ return rte_event_pmd_vdev_uninit(name);
+}
+
+static struct rte_vdev_driver vdev_ssovf_pmd = {
+ .probe = ssovf_vdev_probe,
+ .remove = ssovf_vdev_remove
+};
+
+RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_OCTEONTX_PMD, vdev_ssovf_pmd);
diff --git a/drivers/event/octeontx/ssovf_evdev.h b/drivers/event/octeontx/ssovf_evdev.h
index c2b8187..b8b89a7 100644
--- a/drivers/event/octeontx/ssovf_evdev.h
+++ b/drivers/event/octeontx/ssovf_evdev.h
@@ -34,6 +34,7 @@
#define __SSOVF_EVDEV_H__
#include <rte_config.h>
+#include <rte_eventdev_pmd.h>
#include <rte_io.h>
#include "rte_pmd_octeontx_ssovf.h"
@@ -108,4 +109,26 @@
#define SSOW_BAR4_LEN (64 * 1024)
+/* Mailbox message constants */
+#define SSO_COPROC 0x2
+
+#define SSO_GETDOMAINCFG 0x1
+#define SSO_IDENTIFY 0x2
+#define SSO_GET_DEV_INFO 0x3
+
+struct ssovf_evdev {
+ uint8_t max_event_queues;
+ uint8_t max_event_ports;
+ uint8_t is_timeout_deq;
+ uint32_t min_deq_timeout_ns;
+ uint32_t max_deq_timeout_ns;
+ int32_t max_num_events;
+} __rte_cache_aligned;
+
+static inline struct ssovf_evdev *
+ssovf_pmd_priv(const struct rte_eventdev *eventdev)
+{
+ return eventdev->data->dev_private;
+}
+
#endif /* __SSOVF_EVDEV_H__ */
--
2.5.5
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