// SPDX-License-Identifier: GPL-2.0-only /* QLogic FCoE Offload Driver * Copyright (c) 2016-2018 Cavium Inc. */ #include "drv_scsi_fw_funcs.h" #define SCSI_NUM_SGES_IN_CACHE 0x4 bool scsi_is_slow_sgl(u16 num_sges, bool small_mid_sge) { return (num_sges > SCSI_NUM_SGES_SLOW_SGL_THR && small_mid_sge); } void init_scsi_sgl_context(struct scsi_sgl_params *ctx_sgl_params, struct scsi_cached_sges *ctx_data_desc, struct scsi_sgl_task_params *sgl_task_params) { /* no need to check for sgl_task_params->sgl validity */ u8 num_sges_to_init = sgl_task_params->num_sges > SCSI_NUM_SGES_IN_CACHE ? SCSI_NUM_SGES_IN_CACHE : sgl_task_params->num_sges; u8 sge_index; u32 val; val = cpu_to_le32(sgl_task_params->sgl_phys_addr.lo); ctx_sgl_params->sgl_addr.lo = val; val = cpu_to_le32(sgl_task_params->sgl_phys_addr.hi); ctx_sgl_params->sgl_addr.hi = val; val = cpu_to_le32(sgl_task_params->total_buffer_size); ctx_sgl_params->sgl_total_length = val; ctx_sgl_params->sgl_num_sges = cpu_to_le16(sgl_task_params->num_sges); for (sge_index = 0; sge_index < num_sges_to_init; sge_index++) { val = cpu_to_le32(sgl_task_params->sgl[sge_index].sge_addr.lo); ctx_data_desc->sge[sge_index].sge_addr.lo = val; val = cpu_to_le32(sgl_task_params->sgl[sge_index].sge_addr.hi); ctx_data_desc->sge[sge_index].sge_addr.hi = val; val = cpu_to_le32(sgl_task_params->sgl[sge_index].sge_len); ctx_data_desc->sge[sge_index].sge_len = val; } }