drivers/scsi/lpfc/lpfc_bsg.h - kernel/bruno - Git at Google

 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
  * Copyright (C) 2010-2015 Emulex.  All rights reserved.                *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
  * This program is free software; you can redistribute it and/or   *
  * modify it under the terms of version 2 of the GNU General       *
  * Public License as published by the Free Software Foundation.    *
  * This program is distributed in the hope that it will be useful. *
  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  * more details, a copy of which can be found in the file COPYING  *
  * included with this package.                                     *
  *******************************************************************/
 /* bsg definitions
  * No pointers to user data are allowed, all application buffers and sizes will
  * derived through the bsg interface.
  *
  * These are the vendor unique structures passed in using the bsg
  * FC_BSG_HST_VENDOR message code type.
  */
 #define LPFC_BSG_VENDOR_SET_CT_EVENT		1
 #define LPFC_BSG_VENDOR_GET_CT_EVENT		2
 #define LPFC_BSG_VENDOR_SEND_MGMT_RESP		3
 #define LPFC_BSG_VENDOR_DIAG_MODE		4
 #define LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK	5
 #define LPFC_BSG_VENDOR_GET_MGMT_REV		6
 #define LPFC_BSG_VENDOR_MBOX			7
 #define LPFC_BSG_VENDOR_MENLO_CMD		8
 #define LPFC_BSG_VENDOR_MENLO_DATA		9
 #define LPFC_BSG_VENDOR_DIAG_MODE_END		10
 #define LPFC_BSG_VENDOR_LINK_DIAG_TEST		11

 struct set_ct_event {
 	uint32_t command;
 	uint32_t type_mask;
 	uint32_t ev_req_id;
 	uint32_t ev_reg_id;
 };

 struct get_ct_event {
 	uint32_t command;
 	uint32_t ev_reg_id;
 	uint32_t ev_req_id;
 };

 struct get_ct_event_reply {
 	uint32_t immed_data;
 	uint32_t type;
 };

 struct send_mgmt_resp {
 	uint32_t command;
 	uint32_t tag;
 };


 #define INTERNAL_LOOP_BACK 0x1 /* adapter short cuts the loop internally */
 #define EXTERNAL_LOOP_BACK 0x2 /* requires an external loopback plug */

 struct diag_mode_set {
 	uint32_t command;
 	uint32_t type;
 	uint32_t timeout;
 };

 struct sli4_link_diag {
 	uint32_t command;
 	uint32_t timeout;
 	uint32_t test_id;
 	uint32_t loops;
 	uint32_t test_version;
 	uint32_t error_action;
 };

 struct diag_mode_test {
 	uint32_t command;
 };

 struct diag_status {
 	uint32_t mbox_status;
 	uint32_t shdr_status;
 	uint32_t shdr_add_status;
 };

 #define LPFC_WWNN_TYPE		0
 #define LPFC_WWPN_TYPE		1

 struct get_mgmt_rev {
 	uint32_t command;
 };

 #define MANAGEMENT_MAJOR_REV   1
 #define MANAGEMENT_MINOR_REV   1

 /* the MgmtRevInfo structure */
 struct MgmtRevInfo {
 	uint32_t a_Major;
 	uint32_t a_Minor;
 };

 struct get_mgmt_rev_reply {
 	struct MgmtRevInfo info;
 };

 #define BSG_MBOX_SIZE 4096 /* mailbox command plus extended data */

 /* BSG mailbox request header */
 struct dfc_mbox_req {
 	uint32_t command;
 	uint32_t mbOffset;
 	uint32_t inExtWLen;
 	uint32_t outExtWLen;
 	uint32_t extMboxTag;
 	uint32_t extSeqNum;
 };

 /* Used for menlo command or menlo data. The xri is only used for menlo data */
 struct menlo_command {
 	uint32_t cmd;
 	uint32_t xri;
 };

 struct menlo_response {
 	uint32_t xri; /* return the xri of the iocb exchange */
 };

 /*
  * macros and data structures for handling sli-config mailbox command
  * pass-through support, this header file is shared between user and
  * kernel spaces, note the set of macros are duplicates from lpfc_hw4.h,
  * with macro names prefixed with bsg_, as the macros defined in
  * lpfc_hw4.h are not accessible from user space.
  */

 /* Macros to deal with bit fields. Each bit field must have 3 #defines
  * associated with it (_SHIFT, _MASK, and _WORD).
  * EG. For a bit field that is in the 7th bit of the "field4" field of a
  * structure and is 2 bits in size the following #defines must exist:
  *      struct temp {
  *              uint32_t        field1;
  *              uint32_t        field2;
  *              uint32_t        field3;
  *              uint32_t        field4;
  *      #define example_bit_field_SHIFT         7
  *      #define example_bit_field_MASK          0x03
  *      #define example_bit_field_WORD          field4
  *              uint32_t        field5;
  *      };
  * Then the macros below may be used to get or set the value of that field.
  * EG. To get the value of the bit field from the above example:
  *      struct temp t1;
  *      value = bsg_bf_get(example_bit_field, &t1);
  * And then to set that bit field:
  *      bsg_bf_set(example_bit_field, &t1, 2);
  * Or clear that bit field:
  *      bsg_bf_set(example_bit_field, &t1, 0);
  */
 #define bsg_bf_get_le32(name, ptr) \
 	((le32_to_cpu((ptr)->name##_WORD) >> name##_SHIFT) & name##_MASK)
 #define bsg_bf_get(name, ptr) \
 	(((ptr)->name##_WORD >> name##_SHIFT) & name##_MASK)
 #define bsg_bf_set_le32(name, ptr, value) \
 	((ptr)->name##_WORD = cpu_to_le32(((((value) & \
 	name##_MASK) << name##_SHIFT) | (le32_to_cpu((ptr)->name##_WORD) & \
 	~(name##_MASK << name##_SHIFT)))))
 #define bsg_bf_set(name, ptr, value) \
 	((ptr)->name##_WORD = ((((value) & name##_MASK) << name##_SHIFT) | \
 	((ptr)->name##_WORD & ~(name##_MASK << name##_SHIFT))))

 /*
  * The sli_config structure specified here is based on the following
  * restriction:
  *
  * -- SLI_CONFIG EMB=0, carrying MSEs, will carry subcommands without
  *    carrying HBD.
  * -- SLI_CONFIG EMB=1, not carrying MSE, will carry subcommands with or
  *    without carrying HBDs.
  */

 struct lpfc_sli_config_mse {
 	uint32_t pa_lo;
 	uint32_t pa_hi;
 	uint32_t buf_len;
 #define lpfc_mbox_sli_config_mse_len_SHIFT	0
 #define lpfc_mbox_sli_config_mse_len_MASK	0xffffff
 #define lpfc_mbox_sli_config_mse_len_WORD	buf_len
 };

 struct lpfc_sli_config_hbd {
 	uint32_t buf_len;
 #define lpfc_mbox_sli_config_ecmn_hbd_len_SHIFT	0
 #define lpfc_mbox_sli_config_ecmn_hbd_len_MASK	0xffffff
 #define lpfc_mbox_sli_config_ecmn_hbd_len_WORD	buf_len
 	uint32_t pa_lo;
 	uint32_t pa_hi;
 };

 struct lpfc_sli_config_hdr {
 	uint32_t word1;
 #define lpfc_mbox_hdr_emb_SHIFT		0
 #define lpfc_mbox_hdr_emb_MASK		0x00000001
 #define lpfc_mbox_hdr_emb_WORD		word1
 #define lpfc_mbox_hdr_mse_cnt_SHIFT	3
 #define lpfc_mbox_hdr_mse_cnt_MASK	0x0000001f
 #define lpfc_mbox_hdr_mse_cnt_WORD	word1
 	uint32_t payload_length;
 	uint32_t tag_lo;
 	uint32_t tag_hi;
 	uint32_t reserved5;
 };

 struct lpfc_sli_config_emb0_subsys {
 	struct lpfc_sli_config_hdr	sli_config_hdr;
 #define LPFC_MBX_SLI_CONFIG_MAX_MSE     19
 	struct lpfc_sli_config_mse	mse[LPFC_MBX_SLI_CONFIG_MAX_MSE];
 	uint32_t padding;
 	uint32_t word64;
 #define lpfc_emb0_subcmnd_opcode_SHIFT	0
 #define lpfc_emb0_subcmnd_opcode_MASK	0xff
 #define lpfc_emb0_subcmnd_opcode_WORD	word64
 #define lpfc_emb0_subcmnd_subsys_SHIFT	8
 #define lpfc_emb0_subcmnd_subsys_MASK	0xff
 #define lpfc_emb0_subcmnd_subsys_WORD	word64
 /* Subsystem FCOE (0x0C) OpCodes */
 #define SLI_CONFIG_SUBSYS_FCOE		0x0C
 #define FCOE_OPCODE_READ_FCF		0x08
 #define FCOE_OPCODE_ADD_FCF		0x09
 #define FCOE_OPCODE_SET_DPORT_MODE	0x27
 #define FCOE_OPCODE_GET_DPORT_RESULTS	0x28
 };

 struct lpfc_sli_config_emb1_subsys {
 	struct lpfc_sli_config_hdr	sli_config_hdr;
 	uint32_t word6;
 #define lpfc_emb1_subcmnd_opcode_SHIFT	0
 #define lpfc_emb1_subcmnd_opcode_MASK	0xff
 #define lpfc_emb1_subcmnd_opcode_WORD	word6
 #define lpfc_emb1_subcmnd_subsys_SHIFT	8
 #define lpfc_emb1_subcmnd_subsys_MASK	0xff
 #define lpfc_emb1_subcmnd_subsys_WORD	word6
 /* Subsystem COMN (0x01) OpCodes */
 #define SLI_CONFIG_SUBSYS_COMN		0x01
 #define COMN_OPCODE_GET_PROFILE_CONFIG	0xA4
 #define COMN_OPCODE_READ_OBJECT		0xAB
 #define COMN_OPCODE_WRITE_OBJECT	0xAC
 #define COMN_OPCODE_READ_OBJECT_LIST	0xAD
 #define COMN_OPCODE_DELETE_OBJECT	0xAE
 #define COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES	0x79
 #define COMN_OPCODE_GET_CNTL_ATTRIBUTES	0x20
 	uint32_t timeout;
 	uint32_t request_length;
 	uint32_t word9;
 #define lpfc_subcmnd_version_SHIFT	0
 #define lpfc_subcmnd_version_MASK	0xff
 #define lpfc_subcmnd_version_WORD	word9
 	uint32_t word10;
 #define lpfc_subcmnd_ask_rd_len_SHIFT	0
 #define lpfc_subcmnd_ask_rd_len_MASK	0xffffff
 #define lpfc_subcmnd_ask_rd_len_WORD	word10
 	uint32_t rd_offset;
 	uint32_t obj_name[26];
 	uint32_t hbd_count;
 #define LPFC_MBX_SLI_CONFIG_MAX_HBD	8
 	struct lpfc_sli_config_hbd	hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
 };

 struct lpfc_sli_config_mbox {
 	uint32_t word0;
 #define lpfc_mqe_status_SHIFT		16
 #define lpfc_mqe_status_MASK		0x0000FFFF
 #define lpfc_mqe_status_WORD		word0
 #define lpfc_mqe_command_SHIFT		8
 #define lpfc_mqe_command_MASK		0x000000FF
 #define lpfc_mqe_command_WORD		word0
 	union {
 		struct lpfc_sli_config_emb0_subsys sli_config_emb0_subsys;
 		struct lpfc_sli_config_emb1_subsys sli_config_emb1_subsys;
 	} un;
 };

 /* driver only */
 #define SLI_CONFIG_NOT_HANDLED		0
 #define SLI_CONFIG_HANDLED		1
	/*******************************************************************
	* This file is part of the Emulex Linux Device Driver for *
	* Fibre Channel Host Bus Adapters. *
	* Copyright (C) 2010-2015 Emulex. All rights reserved. *
	* EMULEX and SLI are trademarks of Emulex. *
	* www.emulex.com *
	* *
	* This program is free software; you can redistribute it and/or *
	* modify it under the terms of version 2 of the GNU General *
	* Public License as published by the Free Software Foundation. *
	* This program is distributed in the hope that it will be useful. *
	* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
	* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
	* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
	* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
	* TO BE LEGALLY INVALID. See the GNU General Public License for *
	* more details, a copy of which can be found in the file COPYING *
	* included with this package. *
	*******************************************************************/
	/* bsg definitions
	* No pointers to user data are allowed, all application buffers and sizes will
	* derived through the bsg interface.
	*
	* These are the vendor unique structures passed in using the bsg
	* FC_BSG_HST_VENDOR message code type.
	*/
	#define LPFC_BSG_VENDOR_SET_CT_EVENT 1
	#define LPFC_BSG_VENDOR_GET_CT_EVENT 2
	#define LPFC_BSG_VENDOR_SEND_MGMT_RESP 3
	#define LPFC_BSG_VENDOR_DIAG_MODE 4
	#define LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK 5
	#define LPFC_BSG_VENDOR_GET_MGMT_REV 6
	#define LPFC_BSG_VENDOR_MBOX 7
	#define LPFC_BSG_VENDOR_MENLO_CMD 8
	#define LPFC_BSG_VENDOR_MENLO_DATA 9
	#define LPFC_BSG_VENDOR_DIAG_MODE_END 10
	#define LPFC_BSG_VENDOR_LINK_DIAG_TEST 11

	struct set_ct_event {
	uint32_t command;
	uint32_t type_mask;
	uint32_t ev_req_id;
	uint32_t ev_reg_id;
	};

	struct get_ct_event {
	uint32_t command;
	uint32_t ev_reg_id;
	uint32_t ev_req_id;
	};

	struct get_ct_event_reply {
	uint32_t immed_data;
	uint32_t type;
	};

	struct send_mgmt_resp {
	uint32_t command;
	uint32_t tag;
	};


	#define INTERNAL_LOOP_BACK 0x1 /* adapter short cuts the loop internally */
	#define EXTERNAL_LOOP_BACK 0x2 /* requires an external loopback plug */

	struct diag_mode_set {
	uint32_t command;
	uint32_t type;
	uint32_t timeout;
	};

	struct sli4_link_diag {
	uint32_t command;
	uint32_t timeout;
	uint32_t test_id;
	uint32_t loops;
	uint32_t test_version;
	uint32_t error_action;
	};

	struct diag_mode_test {
	uint32_t command;
	};

	struct diag_status {
	uint32_t mbox_status;
	uint32_t shdr_status;
	uint32_t shdr_add_status;
	};

	#define LPFC_WWNN_TYPE 0
	#define LPFC_WWPN_TYPE 1

	struct get_mgmt_rev {
	uint32_t command;
	};

	#define MANAGEMENT_MAJOR_REV 1
	#define MANAGEMENT_MINOR_REV 1

	/* the MgmtRevInfo structure */
	struct MgmtRevInfo {
	uint32_t a_Major;
	uint32_t a_Minor;
	};

	struct get_mgmt_rev_reply {
	struct MgmtRevInfo info;
	};

	#define BSG_MBOX_SIZE 4096 /* mailbox command plus extended data */

	/* BSG mailbox request header */
	struct dfc_mbox_req {
	uint32_t command;
	uint32_t mbOffset;
	uint32_t inExtWLen;
	uint32_t outExtWLen;
	uint32_t extMboxTag;
	uint32_t extSeqNum;
	};

	/* Used for menlo command or menlo data. The xri is only used for menlo data */
	struct menlo_command {
	uint32_t cmd;
	uint32_t xri;
	};

	struct menlo_response {
	uint32_t xri; /* return the xri of the iocb exchange */
	};

	/*
	* macros and data structures for handling sli-config mailbox command
	* pass-through support, this header file is shared between user and
	* kernel spaces, note the set of macros are duplicates from lpfc_hw4.h,
	* with macro names prefixed with bsg_, as the macros defined in
	* lpfc_hw4.h are not accessible from user space.
	*/

	/* Macros to deal with bit fields. Each bit field must have 3 #defines
	* associated with it (_SHIFT, _MASK, and _WORD).
	* EG. For a bit field that is in the 7th bit of the "field4" field of a
	* structure and is 2 bits in size the following #defines must exist:
	* struct temp {
	* uint32_t field1;
	* uint32_t field2;
	* uint32_t field3;
	* uint32_t field4;
	* #define example_bit_field_SHIFT 7
	* #define example_bit_field_MASK 0x03
	* #define example_bit_field_WORD field4
	* uint32_t field5;
	* };
	* Then the macros below may be used to get or set the value of that field.
	* EG. To get the value of the bit field from the above example:
	* struct temp t1;
	* value = bsg_bf_get(example_bit_field, &t1);
	* And then to set that bit field:
	* bsg_bf_set(example_bit_field, &t1, 2);
	* Or clear that bit field:
	* bsg_bf_set(example_bit_field, &t1, 0);
	*/
	#define bsg_bf_get_le32(name, ptr) \
	((le32_to_cpu((ptr)->name##_WORD) >> name##_SHIFT) & name##_MASK)
	#define bsg_bf_get(name, ptr) \
	(((ptr)->name##_WORD >> name##_SHIFT) & name##_MASK)
	#define bsg_bf_set_le32(name, ptr, value) \
	((ptr)->name##_WORD = cpu_to_le32(((((value) & \
	name##_MASK) << name##_SHIFT) \| (le32_to_cpu((ptr)->name##_WORD) & \
	~(name##_MASK << name##_SHIFT)))))
	#define bsg_bf_set(name, ptr, value) \
	((ptr)->name##_WORD = ((((value) & name##_MASK) << name##_SHIFT) \| \
	((ptr)->name##_WORD & ~(name##_MASK << name##_SHIFT))))

	/*
	* The sli_config structure specified here is based on the following
	* restriction:
	*
	* -- SLI_CONFIG EMB=0, carrying MSEs, will carry subcommands without
	* carrying HBD.
	* -- SLI_CONFIG EMB=1, not carrying MSE, will carry subcommands with or
	* without carrying HBDs.
	*/

	struct lpfc_sli_config_mse {
	uint32_t pa_lo;
	uint32_t pa_hi;
	uint32_t buf_len;
	#define lpfc_mbox_sli_config_mse_len_SHIFT 0
	#define lpfc_mbox_sli_config_mse_len_MASK 0xffffff
	#define lpfc_mbox_sli_config_mse_len_WORD buf_len
	};

	struct lpfc_sli_config_hbd {
	uint32_t buf_len;
	#define lpfc_mbox_sli_config_ecmn_hbd_len_SHIFT 0
	#define lpfc_mbox_sli_config_ecmn_hbd_len_MASK 0xffffff
	#define lpfc_mbox_sli_config_ecmn_hbd_len_WORD buf_len
	uint32_t pa_lo;
	uint32_t pa_hi;
	};

	struct lpfc_sli_config_hdr {
	uint32_t word1;
	#define lpfc_mbox_hdr_emb_SHIFT 0
	#define lpfc_mbox_hdr_emb_MASK 0x00000001
	#define lpfc_mbox_hdr_emb_WORD word1
	#define lpfc_mbox_hdr_mse_cnt_SHIFT 3
	#define lpfc_mbox_hdr_mse_cnt_MASK 0x0000001f
	#define lpfc_mbox_hdr_mse_cnt_WORD word1
	uint32_t payload_length;
	uint32_t tag_lo;
	uint32_t tag_hi;
	uint32_t reserved5;
	};

	struct lpfc_sli_config_emb0_subsys {
	struct lpfc_sli_config_hdr sli_config_hdr;
	#define LPFC_MBX_SLI_CONFIG_MAX_MSE 19
	struct lpfc_sli_config_mse mse[LPFC_MBX_SLI_CONFIG_MAX_MSE];
	uint32_t padding;
	uint32_t word64;
	#define lpfc_emb0_subcmnd_opcode_SHIFT 0
	#define lpfc_emb0_subcmnd_opcode_MASK 0xff
	#define lpfc_emb0_subcmnd_opcode_WORD word64
	#define lpfc_emb0_subcmnd_subsys_SHIFT 8
	#define lpfc_emb0_subcmnd_subsys_MASK 0xff
	#define lpfc_emb0_subcmnd_subsys_WORD word64
	/* Subsystem FCOE (0x0C) OpCodes */
	#define SLI_CONFIG_SUBSYS_FCOE 0x0C
	#define FCOE_OPCODE_READ_FCF 0x08
	#define FCOE_OPCODE_ADD_FCF 0x09
	#define FCOE_OPCODE_SET_DPORT_MODE 0x27
	#define FCOE_OPCODE_GET_DPORT_RESULTS 0x28
	};

	struct lpfc_sli_config_emb1_subsys {
	struct lpfc_sli_config_hdr sli_config_hdr;
	uint32_t word6;
	#define lpfc_emb1_subcmnd_opcode_SHIFT 0
	#define lpfc_emb1_subcmnd_opcode_MASK 0xff
	#define lpfc_emb1_subcmnd_opcode_WORD word6
	#define lpfc_emb1_subcmnd_subsys_SHIFT 8
	#define lpfc_emb1_subcmnd_subsys_MASK 0xff
	#define lpfc_emb1_subcmnd_subsys_WORD word6
	/* Subsystem COMN (0x01) OpCodes */
	#define SLI_CONFIG_SUBSYS_COMN 0x01
	#define COMN_OPCODE_GET_PROFILE_CONFIG 0xA4
	#define COMN_OPCODE_READ_OBJECT 0xAB
	#define COMN_OPCODE_WRITE_OBJECT 0xAC
	#define COMN_OPCODE_READ_OBJECT_LIST 0xAD
	#define COMN_OPCODE_DELETE_OBJECT 0xAE
	#define COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES 0x79
	#define COMN_OPCODE_GET_CNTL_ATTRIBUTES 0x20
	uint32_t timeout;
	uint32_t request_length;
	uint32_t word9;
	#define lpfc_subcmnd_version_SHIFT 0
	#define lpfc_subcmnd_version_MASK 0xff
	#define lpfc_subcmnd_version_WORD word9
	uint32_t word10;
	#define lpfc_subcmnd_ask_rd_len_SHIFT 0
	#define lpfc_subcmnd_ask_rd_len_MASK 0xffffff
	#define lpfc_subcmnd_ask_rd_len_WORD word10
	uint32_t rd_offset;
	uint32_t obj_name[26];
	uint32_t hbd_count;
	#define LPFC_MBX_SLI_CONFIG_MAX_HBD 8
	struct lpfc_sli_config_hbd hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
	};

	struct lpfc_sli_config_mbox {
	uint32_t word0;
	#define lpfc_mqe_status_SHIFT 16
	#define lpfc_mqe_status_MASK 0x0000FFFF
	#define lpfc_mqe_status_WORD word0
	#define lpfc_mqe_command_SHIFT 8
	#define lpfc_mqe_command_MASK 0x000000FF
	#define lpfc_mqe_command_WORD word0
	union {
	struct lpfc_sli_config_emb0_subsys sli_config_emb0_subsys;
	struct lpfc_sli_config_emb1_subsys sli_config_emb1_subsys;
	} un;
	};

	/* driver only */
	#define SLI_CONFIG_NOT_HANDLED 0
	#define SLI_CONFIG_HANDLED 1