Edit File: storage_common.h
/* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and /or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __STORAGE_COMMON__ #define __STORAGE_COMMON__ /*********************/ /* SCSI CONSTANTS */ /*********************/ #define SCSI_MAX_NUM_OF_CMDQS (NUM_OF_GLOBAL_QUEUES / 2) #define BDQ_NUM_RESOURCES (4) #define BDQ_ID_RQ (0) #define BDQ_ID_IMM_DATA (1) #define BDQ_ID_TQ (2) #define BDQ_NUM_IDS (3) #define SCSI_NUM_SGES_SLOW_SGL_THR 8 #define BDQ_MAX_EXTERNAL_RING_SIZE BIT(15) /* SCSI op codes */ #define SCSI_OPCODE_COMPARE_AND_WRITE (0x89) #define SCSI_OPCODE_READ_10 (0x28) #define SCSI_OPCODE_WRITE_6 (0x0A) #define SCSI_OPCODE_WRITE_10 (0x2A) #define SCSI_OPCODE_WRITE_12 (0xAA) #define SCSI_OPCODE_WRITE_16 (0x8A) #define SCSI_OPCODE_WRITE_AND_VERIFY_10 (0x2E) #define SCSI_OPCODE_WRITE_AND_VERIFY_12 (0xAE) #define SCSI_OPCODE_WRITE_AND_VERIFY_16 (0x8E) /* iSCSI Drv opaque */ struct iscsi_drv_opaque { __le16 reserved_zero[3]; __le16 opaque; }; /* Scsi 2B/8B opaque union */ union scsi_opaque { struct regpair fcoe_opaque; struct iscsi_drv_opaque iscsi_opaque; }; /* SCSI buffer descriptor */ struct scsi_bd { struct regpair address; union scsi_opaque opaque; }; /* Scsi Drv BDQ struct */ struct scsi_bdq_ram_drv_data { __le16 external_producer; __le16 reserved0[3]; }; /* SCSI SGE entry */ struct scsi_sge { struct regpair sge_addr; __le32 sge_len; __le32 reserved; }; /* Cached SGEs section */ struct scsi_cached_sges { struct scsi_sge sge[4]; }; /* Scsi Drv CMDQ struct */ struct scsi_drv_cmdq { __le16 cmdq_cons; __le16 reserved0; __le32 reserved1; }; /* Common SCSI init params passed by driver to FW in function init ramrod */ struct scsi_init_func_params { __le16 num_tasks; u8 log_page_size; u8 debug_mode; u8 reserved2[12]; }; /* SCSI RQ/CQ/CMDQ firmware function init parameters */ struct scsi_init_func_queues { struct regpair glbl_q_params_addr; __le16 rq_buffer_size; __le16 cq_num_entries; __le16 cmdq_num_entries; u8 bdq_resource_id; u8 q_validity; #define SCSI_INIT_FUNC_QUEUES_RQ_VALID_MASK 0x1 #define SCSI_INIT_FUNC_QUEUES_RQ_VALID_SHIFT 0 #define SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID_MASK 0x1 #define SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID_SHIFT 1 #define SCSI_INIT_FUNC_QUEUES_CMD_VALID_MASK 0x1 #define SCSI_INIT_FUNC_QUEUES_CMD_VALID_SHIFT 2 #define SCSI_INIT_FUNC_QUEUES_TQ_VALID_MASK 0x1 #define SCSI_INIT_FUNC_QUEUES_TQ_VALID_SHIFT 3 #define SCSI_INIT_FUNC_QUEUES_SOC_EN_MASK 0x1 #define SCSI_INIT_FUNC_QUEUES_SOC_EN_SHIFT 4 #define SCSI_INIT_FUNC_QUEUES_SOC_NUM_OF_BLOCKS_LOG_MASK 0x7 #define SCSI_INIT_FUNC_QUEUES_SOC_NUM_OF_BLOCKS_LOG_SHIFT 5 __le16 cq_cmdq_sb_num_arr[SCSI_MAX_NUM_OF_CMDQS]; u8 num_queues; u8 queue_relative_offset; u8 cq_sb_pi; u8 cmdq_sb_pi; u8 bdq_pbl_num_entries[BDQ_NUM_IDS]; u8 reserved1; struct regpair bdq_pbl_base_address[BDQ_NUM_IDS]; __le16 bdq_xoff_threshold[BDQ_NUM_IDS]; __le16 cmdq_xoff_threshold; __le16 bdq_xon_threshold[BDQ_NUM_IDS]; __le16 cmdq_xon_threshold; }; /* Scsi Drv BDQ Data struct (2 BDQ IDs: 0 - RQ, 1 - Immediate Data) */ struct scsi_ram_per_bdq_resource_drv_data { struct scsi_bdq_ram_drv_data drv_data_per_bdq_id[BDQ_NUM_IDS]; }; /* SCSI SGL types */ enum scsi_sgl_mode { SCSI_TX_SLOW_SGL, SCSI_FAST_SGL, MAX_SCSI_SGL_MODE }; /* SCSI SGL parameters */ struct scsi_sgl_params { struct regpair sgl_addr; __le32 sgl_total_length; __le32 sge_offset; __le16 sgl_num_sges; u8 sgl_index; u8 reserved; }; /* SCSI terminate connection params */ struct scsi_terminate_extra_params { __le16 unsolicited_cq_count; __le16 cmdq_count; u8 reserved[4]; }; /* SCSI Task Queue Element */ struct scsi_tqe { __le16 itid; }; #endif /* __STORAGE_COMMON__ */