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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drv_scsi_fw_funcs.h (2226B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/* QLogic FCoE Offload Driver
      3 * Copyright (c) 2016-2018 Cavium Inc.
      4 */
      5#ifndef _SCSI_FW_FUNCS_H
      6#define _SCSI_FW_FUNCS_H
      7#include <linux/qed/common_hsi.h>
      8#include <linux/qed/storage_common.h>
      9#include <linux/qed/fcoe_common.h>
     10
     11struct scsi_sgl_task_params {
     12	struct scsi_sge *sgl;
     13	struct regpair sgl_phys_addr;
     14	u32 total_buffer_size;
     15	u16 num_sges;
     16
     17	 /* true if SGL contains a small (< 4KB) SGE in middle(not 1st or last)
     18	  * -> relevant for tx only
     19	  */
     20	bool small_mid_sge;
     21};
     22
     23struct scsi_dif_task_params {
     24	u32 initial_ref_tag;
     25	bool initial_ref_tag_is_valid;
     26	u16 application_tag;
     27	u16 application_tag_mask;
     28	u16 dif_block_size_log;
     29	bool dif_on_network;
     30	bool dif_on_host;
     31	u8 host_guard_type;
     32	u8 protection_type;
     33	u8 ref_tag_mask;
     34	bool crc_seed;
     35
     36	 /* Enable Connection error upon DIF error (segments with DIF errors are
     37	  * dropped)
     38	  */
     39	bool tx_dif_conn_err_en;
     40	bool ignore_app_tag;
     41	bool keep_ref_tag_const;
     42	bool validate_guard;
     43	bool validate_app_tag;
     44	bool validate_ref_tag;
     45	bool forward_guard;
     46	bool forward_app_tag;
     47	bool forward_ref_tag;
     48	bool forward_app_tag_with_mask;
     49	bool forward_ref_tag_with_mask;
     50};
     51
     52struct scsi_initiator_cmd_params {
     53	 /* for cdb_size > default CDB size (extended CDB > 16 bytes) ->
     54	  * pointer to the CDB buffer SGE
     55	  */
     56	struct scsi_sge extended_cdb_sge;
     57
     58	/* Physical address of sense data buffer for sense data - 256B buffer */
     59	struct regpair sense_data_buffer_phys_addr;
     60};
     61
     62/**
     63 * @brief scsi_is_slow_sgl - checks for slow SGL
     64 *
     65 * @param num_sges - number of sges in SGL
     66 * @param small_mid_sge - True is the SGL contains an SGE which is smaller than
     67 * 4KB and its not the 1st or last SGE in the SGL
     68 */
     69bool scsi_is_slow_sgl(u16 num_sges, bool small_mid_sge);
     70
     71/**
     72 * @brief init_scsi_sgl_context - initializes SGL task context
     73 *
     74 * @param sgl_params - SGL context parameters to initialize (output parameter)
     75 * @param data_desc - context struct containing SGEs array to set (output
     76 * parameter)
     77 * @param sgl_task_params - SGL parameters (input)
     78 */
     79void init_scsi_sgl_context(struct scsi_sgl_params *sgl_params,
     80	struct scsi_cached_sges *ctx_data_desc,
     81	struct scsi_sgl_task_params *sgl_task_params);
     82#endif