/* SPDX-License-Identifier: GPL-2.0-only */
/* QLogic FCoE Offload Driver
* Copyright ( c ) 2016 - 2018 Cavium Inc .
*/
#ifndef _SCSI_FW_FUNCS_H
#define _SCSI_FW_FUNCS_H
#include <linux/qed/common_hsi.h>
#include <linux/qed/storage_common.h>
#include <linux/qed/fcoe_common.h>
struct scsi_sgl_task_params {
struct scsi_sge *sgl;
struct regpair sgl_phys_addr;
u32 total_buffer_size;
u16 num_sges;
/* true if SGL contains a small (< 4KB) SGE in middle(not 1st or last)
* - > relevant for tx only
*/
bool small_mid_sge;
};
struct scsi_dif_task_params {
u32 initial_ref_tag;
bool initial_ref_tag_is_valid;
u16 application_tag;
u16 application_tag_mask;
u16 dif_block_size_log;
bool dif_on_network;
bool dif_on_host;
u8 host_guard_type;
u8 protection_type;
u8 ref_tag_mask;
bool crc_seed;
/* Enable Connection error upon DIF error (segments with DIF errors are
* dropped )
*/
bool tx_dif_conn_err_en;
bool ignore_app_tag;
bool keep_ref_tag_const;
bool validate_guard;
bool validate_app_tag;
bool validate_ref_tag;
bool forward_guard;
bool forward_app_tag;
bool forward_ref_tag;
bool forward_app_tag_with_mask;
bool forward_ref_tag_with_mask;
};
struct scsi_initiator_cmd_params {
/* for cdb_size > default CDB size (extended CDB > 16 bytes) ->
* pointer to the CDB buffer SGE
*/
struct scsi_sge extended_cdb_sge;
/* Physical address of sense data buffer for sense data - 256B buffer */
struct regpair sense_data_buffer_phys_addr;
};
/**
* @ brief scsi_is_slow_sgl - checks for slow SGL
*
* @ param num_sges - number of sges in SGL
* @ param small_mid_sge - True is the SGL contains an SGE which is smaller than
* 4 KB and its not the 1 st or last SGE in the SGL
*/
bool scsi_is_slow_sgl(u16 num_sges, bool small_mid_sge);
/**
* @ brief init_scsi_sgl_context - initializes SGL task context
*
* @ param sgl_params - SGL context parameters to initialize ( output parameter )
* @ param data_desc - context struct containing SGEs array to set ( output
* parameter )
* @ param sgl_task_params - SGL parameters ( input )
*/
void init_scsi_sgl_context(struct scsi_sgl_params *sgl_params,
struct scsi_cached_sges *ctx_data_desc,
struct scsi_sgl_task_params *sgl_task_params);
#endif
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(vorverarbeitet am 2026-09-28)
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