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0d6eeb1fd6
Changing nvme_passthru_cmd64 to add a field: rsvd2. This field is an explicit
marker for the padding space added on certain platforms as a result of the
enlargement of the result field from 32 bit to 64 bits in size, and
fixes differences in struct size when using compat ioctl for 32-bit
binaries on 64-bit architecture.
Fixes: 65e68edce0 ("nvme: allow 64-bit results in passthru commands")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Charles Machalow <csm10495@gmail.com>
[changelog]
Signed-off-by: Keith Busch <kbusch@kernel.org>
83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Definitions for the NVM Express ioctl interface
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* Copyright (c) 2011-2014, Intel Corporation.
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*/
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#ifndef _UAPI_LINUX_NVME_IOCTL_H
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#define _UAPI_LINUX_NVME_IOCTL_H
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#include <linux/types.h>
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struct nvme_user_io {
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__u8 opcode;
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__u8 flags;
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__u16 control;
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__u16 nblocks;
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__u16 rsvd;
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__u64 metadata;
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__u64 addr;
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__u64 slba;
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__u32 dsmgmt;
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__u32 reftag;
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__u16 apptag;
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__u16 appmask;
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};
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struct nvme_passthru_cmd {
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__u8 opcode;
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__u8 flags;
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__u16 rsvd1;
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__u32 nsid;
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__u32 cdw2;
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__u32 cdw3;
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__u64 metadata;
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__u64 addr;
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__u32 metadata_len;
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__u32 data_len;
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__u32 cdw10;
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__u32 cdw11;
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__u32 cdw12;
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__u32 cdw13;
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__u32 cdw14;
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__u32 cdw15;
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__u32 timeout_ms;
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__u32 result;
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};
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struct nvme_passthru_cmd64 {
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__u8 opcode;
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__u8 flags;
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__u16 rsvd1;
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__u32 nsid;
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__u32 cdw2;
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__u32 cdw3;
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__u64 metadata;
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__u64 addr;
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__u32 metadata_len;
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__u32 data_len;
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__u32 cdw10;
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__u32 cdw11;
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__u32 cdw12;
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__u32 cdw13;
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__u32 cdw14;
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__u32 cdw15;
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__u32 timeout_ms;
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__u32 rsvd2;
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__u64 result;
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};
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#define nvme_admin_cmd nvme_passthru_cmd
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#define NVME_IOCTL_ID _IO('N', 0x40)
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#define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
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#define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
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#define NVME_IOCTL_IO_CMD _IOWR('N', 0x43, struct nvme_passthru_cmd)
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#define NVME_IOCTL_RESET _IO('N', 0x44)
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#define NVME_IOCTL_SUBSYS_RESET _IO('N', 0x45)
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#define NVME_IOCTL_RESCAN _IO('N', 0x46)
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#define NVME_IOCTL_ADMIN64_CMD _IOWR('N', 0x47, struct nvme_passthru_cmd64)
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#define NVME_IOCTL_IO64_CMD _IOWR('N', 0x48, struct nvme_passthru_cmd64)
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#endif /* _UAPI_LINUX_NVME_IOCTL_H */
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