diff options
Diffstat (limited to 'drivers/block/rsxx/rsxx_cfg.h')
| -rw-r--r-- | drivers/block/rsxx/rsxx_cfg.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/block/rsxx/rsxx_cfg.h b/drivers/block/rsxx/rsxx_cfg.h new file mode 100644 index 000000000..2b79015f5 --- /dev/null +++ b/drivers/block/rsxx/rsxx_cfg.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* +* Filename: rsXX_cfg.h +* +* Authors: Joshua Morris <josh.h.morris@us.ibm.com> +* Philip Kelleher <pjk1939@linux.vnet.ibm.com> +* +* (C) Copyright 2013 IBM Corporation +*/ + +#ifndef __RSXX_CFG_H__ +#define __RSXX_CFG_H__ + +/* NOTE: Config values will be saved in network byte order (i.e. Big endian) */ +#include <linux/types.h> + +/* + * The card config version must match the driver's expected version. If it does + * not, the DMA interfaces will not be attached and the user will need to + * initialize/upgrade the card configuration using the card config utility. + */ +#define RSXX_CFG_VERSION 4 + +struct card_cfg_hdr { + __u32 version; + __u32 crc; +}; + +struct card_cfg_data { + __u32 block_size; + __u32 stripe_size; + __u32 vendor_id; + __u32 cache_order; + struct { + __u32 mode; /* Disabled, manual, auto-tune... */ + __u32 count; /* Number of intr to coalesce */ + __u32 latency;/* Max wait time (in ns) */ + } intr_coal; +}; + +struct rsxx_card_cfg { + struct card_cfg_hdr hdr; + struct card_cfg_data data; +}; + +/* Vendor ID Values */ +#define RSXX_VENDOR_ID_IBM 0 +#define RSXX_VENDOR_ID_DSI 1 +#define RSXX_VENDOR_COUNT 2 + +/* Interrupt Coalescing Values */ +#define RSXX_INTR_COAL_DISABLED 0 +#define RSXX_INTR_COAL_EXPLICIT 1 +#define RSXX_INTR_COAL_AUTO_TUNE 2 + + +#endif /* __RSXX_CFG_H__ */ + |