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1// SPDX-License-Identifier: GPL-2.0-only2/* QLogic FCoE Offload Driver3 * Copyright (c) 2016-2018 Cavium Inc.4 */5#include "drv_scsi_fw_funcs.h"6 7#define SCSI_NUM_SGES_IN_CACHE 0x48 9bool scsi_is_slow_sgl(u16 num_sges, bool small_mid_sge)10{11 return (num_sges > SCSI_NUM_SGES_SLOW_SGL_THR && small_mid_sge);12}13 14void init_scsi_sgl_context(struct scsi_sgl_params *ctx_sgl_params,15 struct scsi_cached_sges *ctx_data_desc,16 struct scsi_sgl_task_params *sgl_task_params)17{18 /* no need to check for sgl_task_params->sgl validity */19 u8 num_sges_to_init = sgl_task_params->num_sges >20 SCSI_NUM_SGES_IN_CACHE ? SCSI_NUM_SGES_IN_CACHE :21 sgl_task_params->num_sges;22 u8 sge_index;23 u32 val;24 25 val = cpu_to_le32(sgl_task_params->sgl_phys_addr.lo);26 ctx_sgl_params->sgl_addr.lo = val;27 val = cpu_to_le32(sgl_task_params->sgl_phys_addr.hi);28 ctx_sgl_params->sgl_addr.hi = val;29 val = cpu_to_le32(sgl_task_params->total_buffer_size);30 ctx_sgl_params->sgl_total_length = val;31 ctx_sgl_params->sgl_num_sges = cpu_to_le16(sgl_task_params->num_sges);32 33 for (sge_index = 0; sge_index < num_sges_to_init; sge_index++) {34 val = cpu_to_le32(sgl_task_params->sgl[sge_index].sge_addr.lo);35 ctx_data_desc->sge[sge_index].sge_addr.lo = val;36 val = cpu_to_le32(sgl_task_params->sgl[sge_index].sge_addr.hi);37 ctx_data_desc->sge[sge_index].sge_addr.hi = val;38 val = cpu_to_le32(sgl_task_params->sgl[sge_index].sge_len);39 ctx_data_desc->sge[sge_index].sge_len = val;40 }41}42