1 files changed, 381 insertions, 0 deletions
diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
new file mode 100644
index 00000000..a533dfea
--- /dev/null
+++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c
@@ -0,0 +1,381 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include "opae_hw_api.h"
+#include "opae_debug.h"
+#include "ifpga_api.h"
+
+/* OPAE Bridge Functions */
+
+/**
+ * opae_bridge_alloc - alloc opae_bridge data structure
+ * @name: bridge name.
+ * @ops: ops of this bridge.
+ * @data: private data of this bridge.
+ *
+ * Return opae_bridge on success, otherwise NULL.
+ */
+struct opae_bridge *
+opae_bridge_alloc(const char *name, struct opae_bridge_ops *ops, void *data)
+{
+	struct opae_bridge *br = opae_zmalloc(sizeof(*br));
+
+	if (!br)
+		return NULL;
+
+	br->name = name;
+	br->ops = ops;
+	br->data = data;
+
+	opae_log("%s %p\n", __func__, br);
+
+	return br;
+}
+
+/**
+ * opae_bridge_reset -  reset opae_bridge
+ * @br: bridge to be reset.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_bridge_reset(struct opae_bridge *br)
+{
+	if (!br)
+		return -EINVAL;
+
+	if (br->ops && br->ops->reset)
+		return br->ops->reset(br);
+
+	opae_log("%s no ops\n", __func__);
+
+	return -ENOENT;
+}
+
+/* Accelerator Functions */
+
+/**
+ * opae_accelerator_alloc - alloc opae_accelerator data structure
+ * @name: accelerator name.
+ * @ops: ops of this accelerator.
+ * @data: private data of this accelerator.
+ *
+ * Return: opae_accelerator on success, otherwise NULL.
+ */
+struct opae_accelerator *
+opae_accelerator_alloc(const char *name, struct opae_accelerator_ops *ops,
+		       void *data)
+{
+	struct opae_accelerator *acc = opae_zmalloc(sizeof(*acc));
+
+	if (!acc)
+		return NULL;
+
+	acc->name = name;
+	acc->ops = ops;
+	acc->data = data;
+
+	opae_log("%s %p\n", __func__, acc);
+
+	return acc;
+}
+
+/**
+ * opae_acc_reg_read - read accelerator's register from its reg region.
+ * @acc: accelerator to read.
+ * @region_idx: reg region index.
+ * @offset: reg offset.
+ * @byte: read operation width, e.g 4 byte = 32bit read.
+ * @data: data to store the value read from the register.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_acc_reg_read(struct opae_accelerator *acc, unsigned int region_idx,
+		      u64 offset, unsigned int byte, void *data)
+{
+	if (!acc || !data)
+		return -EINVAL;
+
+	if (acc->ops && acc->ops->read)
+		return acc->ops->read(acc, region_idx, offset, byte, data);
+
+	return -ENOENT;
+}
+
+/**
+ * opae_acc_reg_write - write to accelerator's register from its reg region.
+ * @acc: accelerator to write.
+ * @region_idx: reg region index.
+ * @offset: reg offset.
+ * @byte: write operation width, e.g 4 byte = 32bit write.
+ * @data: data stored the value to write to the register.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_acc_reg_write(struct opae_accelerator *acc, unsigned int region_idx,
+		       u64 offset, unsigned int byte, void *data)
+{
+	if (!acc || !data)
+		return -EINVAL;
+
+	if (acc->ops && acc->ops->write)
+		return acc->ops->write(acc, region_idx, offset, byte, data);
+
+	return -ENOENT;
+}
+
+/**
+ * opae_acc_get_info - get information of an accelerator.
+ * @acc: targeted accelerator
+ * @info: accelerator info data structure to be filled.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_acc_get_info(struct opae_accelerator *acc, struct opae_acc_info *info)
+{
+	if (!acc || !info)
+		return -EINVAL;
+
+	if (acc->ops && acc->ops->get_info)
+		return acc->ops->get_info(acc, info);
+
+	return -ENOENT;
+}
+
+/**
+ * opae_acc_get_region_info - get information of an accelerator register region.
+ * @acc: targeted accelerator
+ * @info: accelerator region info data structure to be filled.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_acc_get_region_info(struct opae_accelerator *acc,
+			     struct opae_acc_region_info *info)
+{
+	if (!acc || !info)
+		return -EINVAL;
+
+	if (acc->ops && acc->ops->get_region_info)
+		return acc->ops->get_region_info(acc, info);
+
+	return -ENOENT;
+}
+
+/**
+ * opae_acc_set_irq -  set an accelerator's irq.
+ * @acc: targeted accelerator
+ * @start: start vector number
+ * @count: count of vectors to be set from the start vector
+ * @evtfds: event fds to be notified when corresponding irqs happens
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_acc_set_irq(struct opae_accelerator *acc,
+		     u32 start, u32 count, s32 evtfds[])
+{
+	if (!acc || !acc->data)
+		return -EINVAL;
+
+	if (start + count <= start)
+		return -EINVAL;
+
+	if (acc->ops && acc->ops->set_irq)
+		return acc->ops->set_irq(acc, start, count, evtfds);
+
+	return -ENOENT;
+}
+
+/**
+ * opae_acc_get_uuid -  get accelerator's UUID.
+ * @acc: targeted accelerator
+ * @uuid: a pointer to UUID
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_acc_get_uuid(struct opae_accelerator *acc,
+		      struct uuid *uuid)
+{
+	if (!acc || !uuid)
+		return -EINVAL;
+
+	if (acc->ops && acc->ops->get_uuid)
+		return acc->ops->get_uuid(acc, uuid);
+
+	return -ENOENT;
+}
+
+/* Manager Functions */
+
+/**
+ * opae_manager_alloc - alloc opae_manager data structure
+ * @name: manager name.
+ * @ops: ops of this manager.
+ * @data: private data of this manager.
+ *
+ * Return: opae_manager on success, otherwise NULL.
+ */
+struct opae_manager *
+opae_manager_alloc(const char *name, struct opae_manager_ops *ops, void *data)
+{
+	struct opae_manager *mgr = opae_zmalloc(sizeof(*mgr));
+
+	if (!mgr)
+		return NULL;
+
+	mgr->name = name;
+	mgr->ops = ops;
+	mgr->data = data;
+
+	opae_log("%s %p\n", __func__, mgr);
+
+	return mgr;
+}
+
+/**
+ * opae_manager_flash - flash a reconfiguration image via opae_manager
+ * @mgr: opae_manager for flash.
+ * @id: id of target region (accelerator).
+ * @buf: image data buffer.
+ * @size: buffer size.
+ * @status: status to store flash result.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_manager_flash(struct opae_manager *mgr, int id, void *buf, u32 size,
+		       u64 *status)
+{
+	if (!mgr)
+		return -EINVAL;
+
+	if (mgr && mgr->ops && mgr->ops->flash)
+		return mgr->ops->flash(mgr, id, buf, size, status);
+
+	return -ENOENT;
+}
+
+/* Adapter Functions */
+
+/**
+ * opae_adapter_data_alloc - alloc opae_adapter_data data structure
+ * @type: opae_adapter_type.
+ *
+ * Return: opae_adapter_data on success, otherwise NULL.
+ */
+void *opae_adapter_data_alloc(enum opae_adapter_type type)
+{
+	struct opae_adapter_data *data;
+	int size;
+
+	switch (type) {
+	case OPAE_FPGA_PCI:
+		size = sizeof(struct opae_adapter_data_pci);
+		break;
+	case OPAE_FPGA_NET:
+		size = sizeof(struct opae_adapter_data_net);
+		break;
+	default:
+		size = sizeof(struct opae_adapter_data);
+		break;
+	}
+
+	data = opae_zmalloc(size);
+	if (!data)
+		return NULL;
+
+	data->type = type;
+
+	return data;
+}
+
+static struct opae_adapter_ops *match_ops(struct opae_adapter *adapter)
+{
+	struct opae_adapter_data *data;
+
+	if (!adapter || !adapter->data)
+		return NULL;
+
+	data = adapter->data;
+
+	if (data->type == OPAE_FPGA_PCI)
+		return &ifpga_adapter_ops;
+
+	return NULL;
+}
+
+/**
+ * opae_adapter_data_alloc - alloc opae_adapter_data data structure
+ * @name: adapter name.
+ * @data: private data of this adapter.
+ *
+ * Return: opae_adapter on success, otherwise NULL.
+ */
+struct opae_adapter *opae_adapter_alloc(const char *name, void *data)
+{
+	struct opae_adapter *adapter = opae_zmalloc(sizeof(*adapter));
+
+	if (!adapter)
+		return NULL;
+
+	TAILQ_INIT(&adapter->acc_list);
+	adapter->data = data;
+	adapter->name = name;
+	adapter->ops = match_ops(adapter);
+
+	return adapter;
+}
+
+/**
+ * opae_adapter_enumerate - enumerate this adapter
+ * @adapter: adapter to enumerate.
+ *
+ * Return: 0 on success, otherwise error code.
+ */
+int opae_adapter_enumerate(struct opae_adapter *adapter)
+{
+	int ret = -ENOENT;
+
+	if (!adapter)
+		return -EINVAL;
+
+	if (adapter->ops && adapter->ops->enumerate)
+		ret = adapter->ops->enumerate(adapter);
+
+	if (!ret)
+		opae_adapter_dump(adapter, 1);
+
+	return ret;
+}
+
+/**
+ * opae_adapter_destroy - destroy this adapter
+ * @adapter: adapter to destroy.
+ *
+ * destroy things allocated during adapter enumeration.
+ */
+void opae_adapter_destroy(struct opae_adapter *adapter)
+{
+	if (adapter && adapter->ops && adapter->ops->destroy)
+		adapter->ops->destroy(adapter);
+}
+
+/**
+ * opae_adapter_get_acc - find and return accelerator with matched id
+ * @adapter: adapter to find the accelerator.
+ * @acc_id: id (index) of the accelerator.
+ *
+ * destroy things allocated during adapter enumeration.
+ */
+struct opae_accelerator *
+opae_adapter_get_acc(struct opae_adapter *adapter, int acc_id)
+{
+	struct opae_accelerator *acc = NULL;
+
+	if (!adapter)
+		return NULL;
+
+	opae_adapter_for_each_acc(adapter, acc)
+		if (acc->index == acc_id)
+			return acc;
+
+	return NULL;
+}