storage_common.h
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/* 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__
#define NUM_OF_CMDQS_CQS (NUM_OF_GLOBAL_QUEUES / 2)
#define BDQ_NUM_RESOURCES (4)
#define BDQ_ID_RQ (0)
#define BDQ_ID_IMM_DATA (1)
#define BDQ_NUM_IDS (2)
#define SCSI_NUM_SGES_SLOW_SGL_THR 8
#define BDQ_MAX_EXTERNAL_RING_SIZE (1 << 15)
struct scsi_bd {
struct regpair address;
struct regpair opaque;
};
struct scsi_bdq_ram_drv_data {
__le16 external_producer;
__le16 reserved0[3];
};
struct scsi_sge {
struct regpair sge_addr;
__le32 sge_len;
__le32 reserved;
};
struct scsi_cached_sges {
struct scsi_sge sge[4];
};
struct scsi_drv_cmdq {
__le16 cmdq_cons;
__le16 reserved0;
__le32 reserved1;
};
struct scsi_init_func_params {
__le16 num_tasks;
u8 log_page_size;
u8 debug_mode;
u8 reserved2[12];
};
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_RESERVED_VALID_MASK 0x1F
#define SCSI_INIT_FUNC_QUEUES_RESERVED_VALID_SHIFT 3
u8 num_queues;
u8 queue_relative_offset;
u8 cq_sb_pi;
u8 cmdq_sb_pi;
__le16 cq_cmdq_sb_num_arr[NUM_OF_CMDQS_CQS];
__le16 reserved0;
u8 bdq_pbl_num_entries[BDQ_NUM_IDS];
struct regpair bdq_pbl_base_address[BDQ_NUM_IDS];
__le16 bdq_xoff_threshold[BDQ_NUM_IDS];
__le16 bdq_xon_threshold[BDQ_NUM_IDS];
__le16 cmdq_xoff_threshold;
__le16 cmdq_xon_threshold;
__le32 reserved1;
};
struct scsi_ram_per_bdq_resource_drv_data {
struct scsi_bdq_ram_drv_data drv_data_per_bdq_id[BDQ_NUM_IDS];
};
enum scsi_sgl_mode {
SCSI_TX_SLOW_SGL,
SCSI_FAST_SGL,
MAX_SCSI_SGL_MODE
};
struct scsi_sgl_params {
struct regpair sgl_addr;
__le32 sgl_total_length;
__le32 sge_offset;
__le16 sgl_num_sges;
u8 sgl_index;
u8 reserved;
};
struct scsi_terminate_extra_params {
__le16 unsolicited_cq_count;
__le16 cmdq_count;
u8 reserved[4];
};
#endif /* __STORAGE_COMMON__ */