59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Filename: rsXX_cfg.h
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*
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* Authors: Joshua Morris <josh.h.morris@us.ibm.com>
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* Philip Kelleher <pjk1939@linux.vnet.ibm.com>
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*
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* (C) Copyright 2013 IBM Corporation
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*/
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#ifndef __RSXX_CFG_H__
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#define __RSXX_CFG_H__
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/* NOTE: Config values will be saved in network byte order (i.e. Big endian) */
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#include <linux/types.h>
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/*
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* The card config version must match the driver's expected version. If it does
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* not, the DMA interfaces will not be attached and the user will need to
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* initialize/upgrade the card configuration using the card config utility.
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*/
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#define RSXX_CFG_VERSION 4
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struct card_cfg_hdr {
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__u32 version;
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__u32 crc;
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};
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struct card_cfg_data {
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__u32 block_size;
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__u32 stripe_size;
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__u32 vendor_id;
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__u32 cache_order;
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struct {
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__u32 mode; /* Disabled, manual, auto-tune... */
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__u32 count; /* Number of intr to coalesce */
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__u32 latency;/* Max wait time (in ns) */
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} intr_coal;
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};
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struct rsxx_card_cfg {
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struct card_cfg_hdr hdr;
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struct card_cfg_data data;
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};
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/* Vendor ID Values */
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#define RSXX_VENDOR_ID_IBM 0
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#define RSXX_VENDOR_ID_DSI 1
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#define RSXX_VENDOR_COUNT 2
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/* Interrupt Coalescing Values */
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#define RSXX_INTR_COAL_DISABLED 0
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#define RSXX_INTR_COAL_EXPLICIT 1
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#define RSXX_INTR_COAL_AUTO_TUNE 2
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#endif /* __RSXX_CFG_H__ */
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