86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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/* QLogic FCoE Offload Driver
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* Copyright (c) 2016-2017 Cavium Inc.
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*
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* This software is available under the terms of the GNU General Public License
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* (GPL) Version 2, available from the file COPYING in the main directory of
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* this source tree.
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*/
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#ifndef _SCSI_FW_FUNCS_H
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#define _SCSI_FW_FUNCS_H
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#include <linux/qed/common_hsi.h>
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#include <linux/qed/storage_common.h>
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#include <linux/qed/fcoe_common.h>
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struct scsi_sgl_task_params {
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struct scsi_sge *sgl;
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struct regpair sgl_phys_addr;
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u32 total_buffer_size;
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u16 num_sges;
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/* true if SGL contains a small (< 4KB) SGE in middle(not 1st or last)
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* -> relevant for tx only
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*/
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bool small_mid_sge;
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};
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struct scsi_dif_task_params {
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u32 initial_ref_tag;
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bool initial_ref_tag_is_valid;
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u16 application_tag;
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u16 application_tag_mask;
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u16 dif_block_size_log;
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bool dif_on_network;
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bool dif_on_host;
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u8 host_guard_type;
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u8 protection_type;
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u8 ref_tag_mask;
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bool crc_seed;
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/* Enable Connection error upon DIF error (segments with DIF errors are
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* dropped)
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*/
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bool tx_dif_conn_err_en;
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bool ignore_app_tag;
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bool keep_ref_tag_const;
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bool validate_guard;
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bool validate_app_tag;
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bool validate_ref_tag;
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bool forward_guard;
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bool forward_app_tag;
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bool forward_ref_tag;
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bool forward_app_tag_with_mask;
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bool forward_ref_tag_with_mask;
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};
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struct scsi_initiator_cmd_params {
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/* for cdb_size > default CDB size (extended CDB > 16 bytes) ->
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* pointer to the CDB buffer SGE
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*/
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struct scsi_sge extended_cdb_sge;
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/* Physical address of sense data buffer for sense data - 256B buffer */
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struct regpair sense_data_buffer_phys_addr;
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};
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/**
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* @brief scsi_is_slow_sgl - checks for slow SGL
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*
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* @param num_sges - number of sges in SGL
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* @param small_mid_sge - True is the SGL contains an SGE which is smaller than
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* 4KB and its not the 1st or last SGE in the SGL
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*/
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bool scsi_is_slow_sgl(u16 num_sges, bool small_mid_sge);
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/**
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* @brief init_scsi_sgl_context - initializes SGL task context
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*
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* @param sgl_params - SGL context parameters to initialize (output parameter)
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* @param data_desc - context struct containing SGEs array to set (output
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* parameter)
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* @param sgl_task_params - SGL parameters (input)
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*/
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void init_scsi_sgl_context(struct scsi_sgl_params *sgl_params,
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struct scsi_cached_sges *ctx_data_desc,
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struct scsi_sgl_task_params *sgl_task_params);
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#endif
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