[dpdk-dev] [PATCH 11/27] event/dlb: add flexible PMD to device interfaces
McDaniel, Timothy
timothy.mcdaniel at intel.com
Fri Jun 12 23:24:18 CEST 2020
The PMD uses function pointers so that it can be executed as a bifurcated
PMD accessing hardware via a linux kernel mode driver, or as a PF PMD
where it has complete control of the hardware device.
Note that this interface is not used in the data path.
Change-Id: I42a3f9d7370e9a7d89855ea1327cb31df4eebf85
Signed-off-by: McDaniel, Timothy <timothy.mcdaniel at intel.com>
Change-Id: I3cce87a28b95cf6e528420da89c8435f41a233ee
Signed-off-by: McDaniel, Timothy <timothy.mcdaniel at intel.com>
---
drivers/event/dlb/dlb_iface.c | 105 ++++++++++++++++++++++++++++++++++++++++++
drivers/event/dlb/dlb_iface.h | 92 ++++++++++++++++++++++++++++++++++++
2 files changed, 197 insertions(+)
create mode 100644 drivers/event/dlb/dlb_iface.c
create mode 100644 drivers/event/dlb/dlb_iface.h
diff --git a/drivers/event/dlb/dlb_iface.c b/drivers/event/dlb/dlb_iface.c
new file mode 100644
index 000000000..72f245220
--- /dev/null
+++ b/drivers/event/dlb/dlb_iface.c
@@ -0,0 +1,105 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016-2020 Intel Corporation
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <rte_debug.h>
+#include <rte_bus_pci.h>
+#include <rte_log.h>
+#include <rte_dev.h>
+#include <rte_mbuf.h>
+#include <rte_ring.h>
+#include <rte_errno.h>
+#include <rte_kvargs.h>
+#include <rte_malloc.h>
+#include <rte_cycles.h>
+#include <rte_io.h>
+#include <rte_eventdev.h>
+#include <rte_eventdev_pmd.h>
+
+#include "dlb_priv.h"
+
+/* DLB PMD Internal interface function pointers.
+ * If VDEV (bifurcated PMD), these will resolve to functions that issue ioctls
+ * serviced by DLB kernel module.
+ * If PCI (PF PMD), these will be implemented locally in user mode.
+ */
+
+void (*dlb_iface_low_level_io_init)(struct dlb_eventdev *dlb);
+
+int (*dlb_iface_open)(struct dlb_hw_dev *handle, const char *name);
+
+void (*dlb_iface_domain_close)(struct dlb_eventdev *dlb);
+
+int (*dlb_iface_get_driver_version)(struct dlb_hw_dev *handle,
+ struct dlb_cmd_response *response);
+
+int (*dlb_iface_get_device_version)(struct dlb_hw_dev *handle,
+ uint8_t *revision);
+
+int (*dlb_iface_get_num_resources)(struct dlb_hw_dev *handle,
+ struct dlb_get_num_resources_args *rsrcs);
+
+int (*dlb_iface_sched_domain_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_sched_domain_args *args);
+
+int (*dlb_iface_ldb_credit_pool_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_ldb_pool_args *cfg);
+
+int (*dlb_iface_dir_credit_pool_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_dir_pool_args *cfg);
+
+int (*dlb_iface_ldb_queue_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_ldb_queue_args *cfg);
+
+int (*dlb_iface_dir_queue_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_dir_queue_args *cfg);
+
+int (*dlb_iface_ldb_port_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_ldb_port_args *cfg,
+ enum dlb_cq_poll_modes poll_mode);
+
+int (*dlb_iface_dir_port_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_dir_port_args *cfg,
+ enum dlb_cq_poll_modes poll_mode);
+
+int (*dlb_iface_map_qid)(struct dlb_hw_dev *handle,
+ struct dlb_map_qid_args *cfg);
+
+int (*dlb_iface_unmap_qid)(struct dlb_hw_dev *handle,
+ struct dlb_unmap_qid_args *cfg);
+
+int (*dlb_iface_sched_domain_start)(struct dlb_hw_dev *handle,
+ struct dlb_start_domain_args *cfg);
+
+int (*dlb_iface_block_on_cq_interrupt)(struct dlb_hw_dev *handle,
+ int port_id, bool is_ldb,
+ volatile void *cq_va, uint8_t cq_gen,
+ bool arm);
+
+int (*dlb_iface_pending_port_unmaps)(struct dlb_hw_dev *handle,
+ struct dlb_pending_port_unmaps_args *args);
+
+int (*dlb_iface_get_ldb_queue_depth)(struct dlb_hw_dev *handle,
+ struct dlb_get_ldb_queue_depth_args *args);
+
+int (*dlb_iface_get_dir_queue_depth)(struct dlb_hw_dev *handle,
+ struct dlb_get_dir_queue_depth_args *args);
+
+int (*dlb_iface_enqueue_domain_alert)(struct dlb_hw_dev *handle,
+ uint64_t alert_data);
+
+int (*dlb_iface_get_cq_poll_mode)(struct dlb_hw_dev *handle,
+ enum dlb_cq_poll_modes *mode);
+
+int (*dlb_iface_get_sn_allocation)(struct dlb_hw_dev *handle,
+ struct dlb_get_sn_allocation_args *args);
+
+int (*dlb_iface_set_sn_allocation)(struct dlb_hw_dev *handle,
+ struct dlb_set_sn_allocation_args *args);
+
+int (*dlb_iface_get_sn_occupancy)(struct dlb_hw_dev *handle,
+ struct dlb_get_sn_occupancy_args *args);
+
+void (*dlb_iface_port_mmap)(struct dlb_port *qm_port);
diff --git a/drivers/event/dlb/dlb_iface.h b/drivers/event/dlb/dlb_iface.h
new file mode 100644
index 000000000..8c3d88bfe
--- /dev/null
+++ b/drivers/event/dlb/dlb_iface.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016-2020 Intel Corporation
+ */
+
+#ifndef _DLB_IFACE_H
+#define _DLB_IFACE_H
+
+/* DLB PMD Internal interface function pointers.
+ * If VDEV (bifurcated PMD), these will resolve to functions that issue ioctls
+ * serviced by DLB kernel module.
+ * If PCI (PF PMD), these will be implemented locally in user mode.
+ */
+
+extern void (*dlb_iface_low_level_io_init)(struct dlb_eventdev *dlb);
+
+extern int (*dlb_iface_open)(struct dlb_hw_dev *handle, const char *name);
+
+extern void (*dlb_iface_domain_close)(struct dlb_eventdev *dlb);
+
+extern int (*dlb_iface_get_driver_version)(struct dlb_hw_dev *handle,
+ struct dlb_cmd_response *response);
+
+extern int (*dlb_iface_get_device_version)(struct dlb_hw_dev *handle,
+ uint8_t *revision);
+
+extern int (*dlb_iface_get_num_resources)(struct dlb_hw_dev *handle,
+ struct dlb_get_num_resources_args *rsrcs);
+
+extern int (*dlb_iface_sched_domain_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_sched_domain_args *args);
+
+extern int (*dlb_iface_ldb_credit_pool_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_ldb_pool_args *cfg);
+
+extern int (*dlb_iface_dir_credit_pool_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_dir_pool_args *cfg);
+
+extern int (*dlb_iface_ldb_queue_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_ldb_queue_args *cfg);
+
+extern int (*dlb_iface_dir_queue_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_dir_queue_args *cfg);
+
+extern int (*dlb_iface_ldb_port_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_ldb_port_args *cfg,
+ enum dlb_cq_poll_modes poll_mode);
+
+extern int (*dlb_iface_dir_port_create)(struct dlb_hw_dev *handle,
+ struct dlb_create_dir_port_args *cfg,
+ enum dlb_cq_poll_modes poll_mode);
+
+extern int (*dlb_iface_map_qid)(struct dlb_hw_dev *handle,
+ struct dlb_map_qid_args *cfg);
+
+extern int (*dlb_iface_unmap_qid)(struct dlb_hw_dev *handle,
+ struct dlb_unmap_qid_args *cfg);
+
+extern int (*dlb_iface_sched_domain_start)(struct dlb_hw_dev *handle,
+ struct dlb_start_domain_args *cfg);
+
+extern int (*dlb_iface_block_on_cq_interrupt)(struct dlb_hw_dev *handle,
+ int port_id, bool is_ldb,
+ volatile void *cq_va, uint8_t cq_gen,
+ bool arm);
+
+extern int (*dlb_iface_pending_port_unmaps)(struct dlb_hw_dev *handle,
+ struct dlb_pending_port_unmaps_args *args);
+
+extern int (*dlb_iface_get_ldb_queue_depth)(struct dlb_hw_dev *handle,
+ struct dlb_get_ldb_queue_depth_args *args);
+
+extern int (*dlb_iface_get_dir_queue_depth)(struct dlb_hw_dev *handle,
+ struct dlb_get_dir_queue_depth_args *args);
+
+extern int (*dlb_iface_enqueue_domain_alert)(struct dlb_hw_dev *handle,
+ uint64_t alert_data);
+
+extern int (*dlb_iface_get_cq_poll_mode)(struct dlb_hw_dev *handle,
+ enum dlb_cq_poll_modes *mode);
+
+extern int (*dlb_iface_get_sn_allocation)(struct dlb_hw_dev *handle,
+ struct dlb_get_sn_allocation_args *args);
+
+extern int (*dlb_iface_set_sn_allocation)(struct dlb_hw_dev *handle,
+ struct dlb_set_sn_allocation_args *args);
+
+extern int (*dlb_iface_get_sn_occupancy)(struct dlb_hw_dev *handle,
+ struct dlb_get_sn_occupancy_args *args);
+
+extern void (*dlb_iface_port_mmap)(struct dlb_port *qm_port);
+
+#endif /* _DLB_IFACE_H */
--
2.13.6
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