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-rw-r--r--include/soc/fsl/dpaa2-io.h141
1 files changed, 141 insertions, 0 deletions
diff --git a/include/soc/fsl/dpaa2-io.h b/include/soc/fsl/dpaa2-io.h
new file mode 100644
index 000000000..4bf62de2e
--- /dev/null
+++ b/include/soc/fsl/dpaa2-io.h
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2017-2019 NXP
+ *
+ */
+#ifndef __FSL_DPAA2_IO_H
+#define __FSL_DPAA2_IO_H
+
+#include <linux/types.h>
+#include <linux/cpumask.h>
+#include <linux/irqreturn.h>
+
+#include "dpaa2-fd.h"
+#include "dpaa2-global.h"
+
+struct dpaa2_io;
+struct dpaa2_io_store;
+struct device;
+
+/**
+ * DOC: DPIO Service
+ *
+ * The DPIO service provides APIs for users to interact with the datapath
+ * by enqueueing and dequeing frame descriptors.
+ *
+ * The following set of APIs can be used to enqueue and dequeue frames
+ * as well as producing notification callbacks when data is available
+ * for dequeue.
+ */
+
+#define DPAA2_IO_ANY_CPU -1
+
+/**
+ * struct dpaa2_io_desc - The DPIO descriptor
+ * @receives_notifications: Use notificaton mode. Non-zero if the DPIO
+ * has a channel.
+ * @has_8prio: Set to non-zero for channel with 8 priority WQs. Ignored
+ * unless receives_notification is TRUE.
+ * @cpu: The cpu index that at least interrupt handlers will
+ * execute on.
+ * @stash_affinity: The stash affinity for this portal favour 'cpu'
+ * @regs_cena: The cache enabled regs.
+ * @regs_cinh: The cache inhibited regs
+ * @dpio_id: The dpio index
+ * @qman_version: The qman version
+ * @qman_clk: The qman clock frequency in Hz
+ *
+ * Describes the attributes and features of the DPIO object.
+ */
+struct dpaa2_io_desc {
+ int receives_notifications;
+ int has_8prio;
+ int cpu;
+ void *regs_cena;
+ void __iomem *regs_cinh;
+ int dpio_id;
+ u32 qman_version;
+ u32 qman_clk;
+};
+
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc,
+ struct device *dev);
+
+void dpaa2_io_down(struct dpaa2_io *d);
+
+irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj);
+
+struct dpaa2_io *dpaa2_io_service_select(int cpu);
+
+/**
+ * struct dpaa2_io_notification_ctx - The DPIO notification context structure
+ * @cb: The callback to be invoked when the notification arrives
+ * @is_cdan: Zero for FQDAN, non-zero for CDAN
+ * @id: FQID or channel ID, needed for rearm
+ * @desired_cpu: The cpu on which the notifications will show up. Use
+ * DPAA2_IO_ANY_CPU if don't care
+ * @dpio_id: The dpio index
+ * @qman64: The 64-bit context value shows up in the FQDAN/CDAN.
+ * @node: The list node
+ * @dpio_private: The dpio object internal to dpio_service
+ *
+ * Used when a FQDAN/CDAN registration is made by drivers.
+ */
+struct dpaa2_io_notification_ctx {
+ void (*cb)(struct dpaa2_io_notification_ctx *ctx);
+ int is_cdan;
+ u32 id;
+ int desired_cpu;
+ int dpio_id;
+ u64 qman64;
+ struct list_head node;
+ void *dpio_private;
+};
+
+int dpaa2_io_get_cpu(struct dpaa2_io *d);
+
+int dpaa2_io_service_register(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx,
+ struct device *dev);
+void dpaa2_io_service_deregister(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx,
+ struct device *dev);
+int dpaa2_io_service_rearm(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx);
+
+int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid,
+ struct dpaa2_io_store *s);
+int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid,
+ struct dpaa2_io_store *s);
+
+int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, u32 fqid,
+ const struct dpaa2_fd *fd);
+int dpaa2_io_service_enqueue_multiple_fq(struct dpaa2_io *d, u32 fqid,
+ const struct dpaa2_fd *fd, int number_of_frame);
+int dpaa2_io_service_enqueue_multiple_desc_fq(struct dpaa2_io *d, u32 *fqid,
+ const struct dpaa2_fd *fd, int number_of_frame);
+int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, u32 qdid, u8 prio,
+ u16 qdbin, const struct dpaa2_fd *fd);
+int dpaa2_io_service_release(struct dpaa2_io *d, u16 bpid,
+ const u64 *buffers, unsigned int num_buffers);
+int dpaa2_io_service_acquire(struct dpaa2_io *d, u16 bpid,
+ u64 *buffers, unsigned int num_buffers);
+
+struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames,
+ struct device *dev);
+void dpaa2_io_store_destroy(struct dpaa2_io_store *s);
+struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last);
+
+int dpaa2_io_query_fq_count(struct dpaa2_io *d, u32 fqid,
+ u32 *fcnt, u32 *bcnt);
+int dpaa2_io_query_bp_count(struct dpaa2_io *d, u16 bpid,
+ u32 *num);
+
+int dpaa2_io_set_irq_coalescing(struct dpaa2_io *d, u32 irq_holdoff);
+void dpaa2_io_get_irq_coalescing(struct dpaa2_io *d, u32 *irq_holdoff);
+void dpaa2_io_set_adaptive_coalescing(struct dpaa2_io *d,
+ int use_adaptive_rx_coalesce);
+int dpaa2_io_get_adaptive_coalescing(struct dpaa2_io *d);
+void dpaa2_io_update_net_dim(struct dpaa2_io *d, __u64 frames, __u64 bytes);
+#endif /* __FSL_DPAA2_IO_H */