184 lines
5.0 KiB
C
184 lines
5.0 KiB
C
/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __STORAGE_COMMON__
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#define __STORAGE_COMMON__
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/*********************/
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/* SCSI CONSTANTS */
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/*********************/
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#define SCSI_MAX_NUM_OF_CMDQS (NUM_OF_GLOBAL_QUEUES / 2)
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#define BDQ_NUM_RESOURCES (4)
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#define BDQ_ID_RQ (0)
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#define BDQ_ID_IMM_DATA (1)
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#define BDQ_ID_TQ (2)
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#define BDQ_NUM_IDS (3)
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#define SCSI_NUM_SGES_SLOW_SGL_THR 8
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#define BDQ_MAX_EXTERNAL_RING_SIZE BIT(15)
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/* SCSI op codes */
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#define SCSI_OPCODE_COMPARE_AND_WRITE (0x89)
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#define SCSI_OPCODE_READ_10 (0x28)
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#define SCSI_OPCODE_WRITE_6 (0x0A)
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#define SCSI_OPCODE_WRITE_10 (0x2A)
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#define SCSI_OPCODE_WRITE_12 (0xAA)
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#define SCSI_OPCODE_WRITE_16 (0x8A)
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#define SCSI_OPCODE_WRITE_AND_VERIFY_10 (0x2E)
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#define SCSI_OPCODE_WRITE_AND_VERIFY_12 (0xAE)
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#define SCSI_OPCODE_WRITE_AND_VERIFY_16 (0x8E)
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/* iSCSI Drv opaque */
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struct iscsi_drv_opaque {
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__le16 reserved_zero[3];
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__le16 opaque;
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};
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/* Scsi 2B/8B opaque union */
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union scsi_opaque {
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struct regpair fcoe_opaque;
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struct iscsi_drv_opaque iscsi_opaque;
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};
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/* SCSI buffer descriptor */
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struct scsi_bd {
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struct regpair address;
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union scsi_opaque opaque;
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};
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/* Scsi Drv BDQ struct */
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struct scsi_bdq_ram_drv_data {
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__le16 external_producer;
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__le16 reserved0[3];
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};
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/* SCSI SGE entry */
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struct scsi_sge {
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struct regpair sge_addr;
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__le32 sge_len;
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__le32 reserved;
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};
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/* Cached SGEs section */
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struct scsi_cached_sges {
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struct scsi_sge sge[4];
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};
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/* Scsi Drv CMDQ struct */
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struct scsi_drv_cmdq {
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__le16 cmdq_cons;
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__le16 reserved0;
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__le32 reserved1;
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};
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/* Common SCSI init params passed by driver to FW in function init ramrod */
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struct scsi_init_func_params {
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__le16 num_tasks;
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u8 log_page_size;
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u8 log_page_size_conn;
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u8 debug_mode;
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u8 reserved2[11];
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};
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/* SCSI RQ/CQ/CMDQ firmware function init parameters */
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struct scsi_init_func_queues {
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struct regpair glbl_q_params_addr;
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__le16 rq_buffer_size;
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__le16 cq_num_entries;
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__le16 cmdq_num_entries;
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u8 bdq_resource_id;
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u8 q_validity;
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#define SCSI_INIT_FUNC_QUEUES_RQ_VALID_MASK 0x1
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#define SCSI_INIT_FUNC_QUEUES_RQ_VALID_SHIFT 0
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#define SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID_MASK 0x1
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#define SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID_SHIFT 1
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#define SCSI_INIT_FUNC_QUEUES_CMD_VALID_MASK 0x1
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#define SCSI_INIT_FUNC_QUEUES_CMD_VALID_SHIFT 2
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#define SCSI_INIT_FUNC_QUEUES_TQ_VALID_MASK 0x1
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#define SCSI_INIT_FUNC_QUEUES_TQ_VALID_SHIFT 3
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#define SCSI_INIT_FUNC_QUEUES_SOC_EN_MASK 0x1
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#define SCSI_INIT_FUNC_QUEUES_SOC_EN_SHIFT 4
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#define SCSI_INIT_FUNC_QUEUES_SOC_NUM_OF_BLOCKS_LOG_MASK 0x7
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#define SCSI_INIT_FUNC_QUEUES_SOC_NUM_OF_BLOCKS_LOG_SHIFT 5
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__le16 cq_cmdq_sb_num_arr[SCSI_MAX_NUM_OF_CMDQS];
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u8 num_queues;
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u8 queue_relative_offset;
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u8 cq_sb_pi;
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u8 cmdq_sb_pi;
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u8 bdq_pbl_num_entries[BDQ_NUM_IDS];
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u8 reserved1;
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struct regpair bdq_pbl_base_address[BDQ_NUM_IDS];
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__le16 bdq_xoff_threshold[BDQ_NUM_IDS];
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__le16 cmdq_xoff_threshold;
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__le16 bdq_xon_threshold[BDQ_NUM_IDS];
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__le16 cmdq_xon_threshold;
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};
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/* Scsi Drv BDQ Data struct (2 BDQ IDs: 0 - RQ, 1 - Immediate Data) */
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struct scsi_ram_per_bdq_resource_drv_data {
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struct scsi_bdq_ram_drv_data drv_data_per_bdq_id[BDQ_NUM_IDS];
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};
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/* SCSI SGL types */
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enum scsi_sgl_mode {
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SCSI_TX_SLOW_SGL,
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SCSI_FAST_SGL,
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MAX_SCSI_SGL_MODE
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};
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/* SCSI SGL parameters */
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struct scsi_sgl_params {
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struct regpair sgl_addr;
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__le32 sgl_total_length;
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__le32 sge_offset;
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__le16 sgl_num_sges;
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u8 sgl_index;
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u8 reserved;
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};
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/* SCSI terminate connection params */
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struct scsi_terminate_extra_params {
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__le16 unsolicited_cq_count;
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__le16 cmdq_count;
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u8 reserved[4];
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};
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/* SCSI Task Queue Element */
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struct scsi_tqe {
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__le16 itid;
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};
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#endif /* __STORAGE_COMMON__ */
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