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dpaa2-io.h
/* 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 */
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