RDMA/core: Introduce new header file for signature operations (36b1e47f) · Commits · e / devices / android_kernel_fairphone_FP5

include/rdma/ib_verbs.h

+1 −111

Original line number	Diff line number	Diff line
		@@ -63,6 +63,7 @@
		#include <linux/preempt.h>
		#include <uapi/rdma/ib_user_verbs.h>
		#include <rdma/restrack.h>
		#include <rdma/signature.h>
		#include <uapi/rdma/rdma_user_ioctl.h>
		#include <uapi/rdma/ib_user_ioctl_verbs.h>

		@@ -264,17 +265,6 @@ enum ib_device_cap_flags {
		IB_DEVICE_ALLOW_USER_UNREG = (1ULL << 37),
		};

		enum ib_signature_prot_cap {
		IB_PROT_T10DIF_TYPE_1 = 1,
		IB_PROT_T10DIF_TYPE_2 = 1 << 1,
		IB_PROT_T10DIF_TYPE_3 = 1 << 2,
		};

		enum ib_signature_guard_cap {
		IB_GUARD_T10DIF_CRC = 1,
		IB_GUARD_T10DIF_CSUM = 1 << 1,
		};

		enum ib_atomic_cap {
		IB_ATOMIC_NONE,
		IB_ATOMIC_HCA,
		@@ -799,106 +789,6 @@ enum ib_mr_type {
		IB_MR_TYPE_SG_GAPS,
		};

		/**
		* Signature types
		* IB_SIG_TYPE_NONE: Unprotected.
		* IB_SIG_TYPE_T10_DIF: Type T10-DIF
		*/
		enum ib_signature_type {
		IB_SIG_TYPE_NONE,
		IB_SIG_TYPE_T10_DIF,
		};

		/**
		* Signature T10-DIF block-guard types
		* IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules.
		* IB_T10DIF_CSUM: Corresponds to IP checksum rules.
		*/
		enum ib_t10_dif_bg_type {
		IB_T10DIF_CRC,
		IB_T10DIF_CSUM
		};

		/**
		* struct ib_t10_dif_domain - Parameters specific for T10-DIF
		* domain.
		* @bg_type: T10-DIF block guard type (CRC\|CSUM)
		* @pi_interval: protection information interval.
		* @bg: seed of guard computation.
		* @app_tag: application tag of guard block
		* @ref_tag: initial guard block reference tag.
		* @ref_remap: Indicate wethear the reftag increments each block
		* @app_escape: Indicate to skip block check if apptag=0xffff
		* @ref_escape: Indicate to skip block check if reftag=0xffffffff
		* @apptag_check_mask: check bitmask of application tag.
		*/
		struct ib_t10_dif_domain {
		enum ib_t10_dif_bg_type bg_type;
		u16 pi_interval;
		u16 bg;
		u16 app_tag;
		u32 ref_tag;
		bool ref_remap;
		bool app_escape;
		bool ref_escape;
		u16 apptag_check_mask;
		};

		/**
		* struct ib_sig_domain - Parameters for signature domain
		* @sig_type: specific signauture type
		* @sig: union of all signature domain attributes that may
		* be used to set domain layout.
		*/
		struct ib_sig_domain {
		enum ib_signature_type sig_type;
		union {
		struct ib_t10_dif_domain dif;
		} sig;
		};

		/**
		* struct ib_sig_attrs - Parameters for signature handover operation
		* @check_mask: bitmask for signature byte check (8 bytes)
		* @mem: memory domain layout desciptor.
		* @wire: wire domain layout desciptor.
		*/
		struct ib_sig_attrs {
		u8 check_mask;
		struct ib_sig_domain mem;
		struct ib_sig_domain wire;
		};

		enum ib_sig_err_type {
		IB_SIG_BAD_GUARD,
		IB_SIG_BAD_REFTAG,
		IB_SIG_BAD_APPTAG,
		};

		/**
		* Signature check masks (8 bytes in total) according to the T10-PI standard:
		* -------- -------- ------------
		* \| GUARD \| APPTAG \| REFTAG \|
		* \| 2B \| 2B \| 4B \|
		* -------- -------- ------------
		*/
		enum {
		IB_SIG_CHECK_GUARD = 0xc0,
		IB_SIG_CHECK_APPTAG = 0x30,
		IB_SIG_CHECK_REFTAG = 0x0f,
		};

		/**
		* struct ib_sig_err - signature error descriptor
		*/
		struct ib_sig_err {
		enum ib_sig_err_type err_type;
		u32 expected;
		u32 actual;
		u64 sig_err_offset;
		u32 key;
		};

		enum ib_mr_status_check {
		IB_MR_CHECK_SIG_STATUS = 1,
		};

include/rdma/signature.h

0 → 100644

+120 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: (GPL-2.0 OR Linux-OpenIB) */
		/*
		* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved.
		*/

		#ifndef _RDMA_SIGNATURE_H_
		#define _RDMA_SIGNATURE_H_

		enum ib_signature_prot_cap {
		IB_PROT_T10DIF_TYPE_1 = 1,
		IB_PROT_T10DIF_TYPE_2 = 1 << 1,
		IB_PROT_T10DIF_TYPE_3 = 1 << 2,
		};

		enum ib_signature_guard_cap {
		IB_GUARD_T10DIF_CRC = 1,
		IB_GUARD_T10DIF_CSUM = 1 << 1,
		};

		/**
		* enum ib_signature_type - Signature types
		* @IB_SIG_TYPE_NONE: Unprotected.
		* @IB_SIG_TYPE_T10_DIF: Type T10-DIF
		*/
		enum ib_signature_type {
		IB_SIG_TYPE_NONE,
		IB_SIG_TYPE_T10_DIF,
		};

		/**
		* enum ib_t10_dif_bg_type - Signature T10-DIF block-guard types
		* @IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules.
		* @IB_T10DIF_CSUM: Corresponds to IP checksum rules.
		*/
		enum ib_t10_dif_bg_type {
		IB_T10DIF_CRC,
		IB_T10DIF_CSUM,
		};

		/**
		* struct ib_t10_dif_domain - Parameters specific for T10-DIF
		* domain.
		* @bg_type: T10-DIF block guard type (CRC\|CSUM)
		* @pi_interval: protection information interval.
		* @bg: seed of guard computation.
		* @app_tag: application tag of guard block
		* @ref_tag: initial guard block reference tag.
		* @ref_remap: Indicate wethear the reftag increments each block
		* @app_escape: Indicate to skip block check if apptag=0xffff
		* @ref_escape: Indicate to skip block check if reftag=0xffffffff
		* @apptag_check_mask: check bitmask of application tag.
		*/
		struct ib_t10_dif_domain {
		enum ib_t10_dif_bg_type bg_type;
		u16 pi_interval;
		u16 bg;
		u16 app_tag;
		u32 ref_tag;
		bool ref_remap;
		bool app_escape;
		bool ref_escape;
		u16 apptag_check_mask;
		};

		/**
		* struct ib_sig_domain - Parameters for signature domain
		* @sig_type: specific signauture type
		* @sig: union of all signature domain attributes that may
		* be used to set domain layout.
		*/
		struct ib_sig_domain {
		enum ib_signature_type sig_type;
		union {
		struct ib_t10_dif_domain dif;
		} sig;
		};

		/**
		* struct ib_sig_attrs - Parameters for signature handover operation
		* @check_mask: bitmask for signature byte check (8 bytes)
		* @mem: memory domain layout descriptor.
		* @wire: wire domain layout descriptor.
		*/
		struct ib_sig_attrs {
		u8 check_mask;
		struct ib_sig_domain mem;
		struct ib_sig_domain wire;
		};

		enum ib_sig_err_type {
		IB_SIG_BAD_GUARD,
		IB_SIG_BAD_REFTAG,
		IB_SIG_BAD_APPTAG,
		};

		/*
		* Signature check masks (8 bytes in total) according to the T10-PI standard:
		* -------- -------- ------------
		* \| GUARD \| APPTAG \| REFTAG \|
		* \| 2B \| 2B \| 4B \|
		* -------- -------- ------------
		*/
		enum {
		IB_SIG_CHECK_GUARD = 0xc0,
		IB_SIG_CHECK_APPTAG = 0x30,
		IB_SIG_CHECK_REFTAG = 0x0f,
		};

		/*
		* struct ib_sig_err - signature error descriptor
		*/
		struct ib_sig_err {
		enum ib_sig_err_type err_type;
		u32 expected;
		u32 actual;
		u64 sig_err_offset;
		u32 key;
		};

		#endif /* _RDMA_SIGNATURE_H_ */