cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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target_core_xcopy.h (1929B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#include <target/target_core_base.h>
      3
      4#define XCOPY_HDR_LEN			16
      5#define XCOPY_TARGET_DESC_LEN		32
      6#define XCOPY_SEGMENT_DESC_LEN		28
      7#define XCOPY_NAA_IEEE_REGEX_LEN	16
      8#define XCOPY_MAX_SECTORS		4096
      9
     10/*
     11 * SPC4r37 6.4.6.1
     12 * Table 150 — CSCD descriptor ID values
     13 */
     14#define XCOPY_CSCD_DESC_ID_LIST_OFF_MAX	0x07FF
     15
     16enum xcopy_origin_list {
     17	XCOL_SOURCE_RECV_OP = 0x01,
     18	XCOL_DEST_RECV_OP = 0x02,
     19};
     20
     21struct xcopy_op {
     22	int op_origin;
     23
     24	struct se_cmd *xop_se_cmd;
     25	struct se_device *src_dev;
     26	unsigned char src_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
     27	struct se_device *dst_dev;
     28	unsigned char dst_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
     29	unsigned char local_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
     30	struct percpu_ref *remote_lun_ref;
     31
     32	sector_t src_lba;
     33	sector_t dst_lba;
     34	unsigned short stdi;
     35	unsigned short dtdi;
     36	unsigned short nolb;
     37
     38	u32 xop_data_bytes;
     39	u32 xop_data_nents;
     40	struct scatterlist *xop_data_sg;
     41	struct work_struct xop_work;
     42};
     43
     44/*
     45 * Receive Copy Results Sevice Actions
     46 */
     47#define RCR_SA_COPY_STATUS		0x00
     48#define RCR_SA_RECEIVE_DATA		0x01
     49#define RCR_SA_OPERATING_PARAMETERS	0x03
     50#define RCR_SA_FAILED_SEGMENT_DETAILS	0x04
     51
     52/*
     53 * Receive Copy Results defs for Operating Parameters
     54 */
     55#define RCR_OP_MAX_TARGET_DESC_COUNT	0x2
     56#define RCR_OP_MAX_SG_DESC_COUNT	0x1
     57#define RCR_OP_MAX_DESC_LIST_LEN	1024
     58#define RCR_OP_MAX_SEGMENT_LEN		268435456 /* 256 MB */
     59#define RCR_OP_TOTAL_CONCURR_COPIES	0x1 /* Must be <= 16384 */
     60#define RCR_OP_MAX_CONCURR_COPIES	0x1 /* Must be <= 255 */
     61#define RCR_OP_DATA_SEG_GRAN_LOG2	9 /* 512 bytes in log 2 */
     62#define RCR_OP_INLINE_DATA_GRAN_LOG2	9 /* 512 bytes in log 2 */
     63#define RCR_OP_HELD_DATA_GRAN_LOG2	9 /* 512 bytes in log 2 */
     64
     65extern int target_xcopy_setup_pt(void);
     66extern void target_xcopy_release_pt(void);
     67extern sense_reason_t target_do_xcopy(struct se_cmd *);
     68extern sense_reason_t target_do_receive_copy_results(struct se_cmd *);