Change-Id: I0237d00b8d27d84962be467c48de7c4d5137cc4c
Signed-off-by: McDaniel, Timothy <timothy.mcdan...@intel.com>
---
drivers/event/dlb/rte_pmd_dlb.c | 39 ++++++++++++++
drivers/event/dlb/rte_pmd_dlb.h | 69 +++++++++++++++++++++++++
drivers/event/dlb/rte_pmd_dlb_event_version.map | 6 +++
3 files changed, 114 insertions(+)
create mode 100644 drivers/event/dlb/rte_pmd_dlb.c
create mode 100644 drivers/event/dlb/rte_pmd_dlb.h
create mode 100644 drivers/event/dlb/rte_pmd_dlb_event_version.map
diff --git a/drivers/event/dlb/rte_pmd_dlb.c b/drivers/event/dlb/rte_pmd_dlb.c
new file mode 100644
index 000000000..11f0d66cd
--- /dev/null
+++ b/drivers/event/dlb/rte_pmd_dlb.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+
+#include "rte_eventdev.h"
+#include "rte_eventdev_pmd.h"
+
+#include "rte_pmd_dlb.h"
+#include "dlb_priv.h"
+#include "dlb_inline_fns.h"
+
+int
+rte_pmd_dlb_set_token_pop_mode(uint8_t dev_id,
+ uint8_t port_id,
+ enum dlb_token_pop_mode mode)
+{
+ struct dlb_eventdev *dlb;
+ struct rte_eventdev *dev;
+
+ RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ dev = &rte_eventdevs[dev_id];
+
+ dlb = dlb_pmd_priv(dev);
+
+ if (mode >= NUM_TOKEN_POP_MODES)
+ return -EINVAL;
+
+ /* The event device must be configured, but not yet started */
+ if (!dlb->configured || dlb->run_state != DLB_RUN_STATE_STOPPED)
+ return -EINVAL;
+
+ /* The token pop mode must be set before configuring the port */
+ if (port_id >= dlb->num_ports || dlb->ev_ports[port_id].setup_done)
+ return -EINVAL;
+
+ dlb->ev_ports[port_id].qm_port.token_pop_mode = mode;
+
+ return 0;
+}
diff --git a/drivers/event/dlb/rte_pmd_dlb.h b/drivers/event/dlb/rte_pmd_dlb.h
new file mode 100644
index 000000000..1b637def6
--- /dev/null
+++ b/drivers/event/dlb/rte_pmd_dlb.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019-2020 Intel Corporation
+ */
+
+/*!
+ * @file rte_pmd_dlb.h
+ *
+ * @brief DLB PMD-specific functions
+ */
+
+#ifndef _RTE_PMD_DLB_H_
+#define _RTE_PMD_DLB_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/**
+ * Selects the token pop mode for an DLB port.
+ */
+enum dlb_token_pop_mode {
+ /* Pop the CQ tokens immediately after dequeueing. */
+ AUTO_POP,
+ /* Pop CQ tokens after (dequeue_depth - 1) events are released.
+ * Supported on load-balanced ports only.
+ */
+ DELAYED_POP,
+ /* Pop the CQ tokens during next dequeue operation. */
+ DEFERRED_POP,
+
+ /* NUM_TOKEN_POP_MODES must be last */
+ NUM_TOKEN_POP_MODES
+};
+
+/*!
+ * Configure the token pop mode for an DLB port. By default, all ports use
+ * AUTO_POP. This function must be called before calling rte_event_port_setup()
+ * for the port, but after calling rte_event_dev_configure().
+ *
+ * @note
+ * The defer_sched vdev arg, which configures all load-balanced ports with
+ * dequeue_depth == 1 for DEFERRED_POP mode, takes precedence over this
+ * function.
+ *
+ * @param dev_id
+ * The identifier of the event device.
+ * @param port_id
+ * The identifier of the event port.
+ * @param mode
+ * The token pop mode.
+ *
+ * @return
+ * - 0: Success
+ * - EINVAL: Invalid dev_id, port_id, or mode
+ * - EINVAL: The DLB is not configured, is already running, or the port is
+ * already setup
+ */
+
+int
+rte_pmd_dlb_set_token_pop_mode(uint8_t dev_id,
+ uint8_t port_id,
+ enum dlb_token_pop_mode mode);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_PMD_DLB_H_ */
diff --git a/drivers/event/dlb/rte_pmd_dlb_event_version.map
b/drivers/event/dlb/rte_pmd_dlb_event_version.map
new file mode 100644
index 000000000..8b1c796de
--- /dev/null
+++ b/drivers/event/dlb/rte_pmd_dlb_event_version.map
@@ -0,0 +1,6 @@
+DPDK_20.08 {
+ global:
+
+ rte_pmd_dlb_set_token_pop_mode;
+ local: *;
+};
--
2.13.6
