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2cf0b6fe9b
Through the dpio_get_attributes() firmware call the dpio driver has access to the QBMAN clock frequency. Extend the structure which holds the firmware's response so that we can have access to this information. This will be needed in the next patches which also add support for interrupt coalescing which needs to be configured based on the frequency. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
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/*
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* Copyright 2013-2016 Freescale Semiconductor Inc.
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* Copyright 2016 NXP
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*
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*/
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#ifndef __FSL_DPIO_H
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#define __FSL_DPIO_H
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struct fsl_mc_io;
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int dpio_open(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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int dpio_id,
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u16 *token);
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int dpio_close(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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/**
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* enum dpio_channel_mode - DPIO notification channel mode
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* @DPIO_NO_CHANNEL: No support for notification channel
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* @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
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* dedicated channel in the DPIO; user should point the queue's
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* destination in the relevant interface to this DPIO
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*/
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enum dpio_channel_mode {
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DPIO_NO_CHANNEL = 0,
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DPIO_LOCAL_CHANNEL = 1,
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};
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/**
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* struct dpio_cfg - Structure representing DPIO configuration
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* @channel_mode: Notification channel mode
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* @num_priorities: Number of priorities for the notification channel (1-8);
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* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
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*/
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struct dpio_cfg {
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enum dpio_channel_mode channel_mode;
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u8 num_priorities;
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};
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int dpio_enable(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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int dpio_disable(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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/**
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* struct dpio_attr - Structure representing DPIO attributes
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* @id: DPIO object ID
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* @qbman_portal_ce_offset: offset of the software portal cache-enabled area
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* @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
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* @qbman_portal_id: Software portal ID
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* @channel_mode: Notification channel mode
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* @num_priorities: Number of priorities for the notification channel (1-8);
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* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
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* @qbman_version: QBMAN version
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* @clk: QBMAN clock frequency value in Hz
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*/
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struct dpio_attr {
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int id;
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u64 qbman_portal_ce_offset;
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u64 qbman_portal_ci_offset;
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u16 qbman_portal_id;
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enum dpio_channel_mode channel_mode;
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u8 num_priorities;
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u32 qbman_version;
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u32 clk;
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};
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int dpio_get_attributes(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token,
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struct dpio_attr *attr);
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int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token,
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u8 dest);
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int dpio_get_api_version(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 *major_ver,
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u16 *minor_ver);
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int dpio_reset(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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#endif /* __FSL_DPIO_H */
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