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Diffstat (limited to 'include/linux/qed/storage_common.h')
| -rw-r--r-- | include/linux/qed/storage_common.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/include/linux/qed/storage_common.h b/include/linux/qed/storage_common.h new file mode 100644 index 000000000..91896e879 --- /dev/null +++ b/include/linux/qed/storage_common.h @@ -0,0 +1,157 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* QLogic qed NIC Driver + * Copyright (c) 2015-2017 QLogic Corporation + * Copyright (c) 2019-2020 Marvell International Ltd. + */ + +#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 log_page_size_conn; + u8 debug_mode; + u8 reserved2[11]; +}; + +/* 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__ */ |