linux-yocto - Yocto Linux Embedded kernel

Age	Commit message (Expand)	Author
2017-07-14	irqflags-tracing.txt: standardize document format	Mauro Carvalho Chehab
2014-04-07	asm/system.h: clean asm/system.h from docs	David Howells
2011-03-31	Fix common misspellings	Lucas De Marchi
2006-07-03	[PATCH] lockdep: irqtrace subsystem, docs	Ingo Molnar

/*****************************************************************************/ /* srp.h -- SCSI RDMA Protocol definitions */ /* */ /* Written By: Colin Devilbis, IBM Corporation */ /* */ /* Copyright (C) 2003 IBM Corporation */ /* */ /* This program is free software; you can redistribute it and/or modify */ /* it under the terms of the GNU General Public License as published by */ /* the Free Software Foundation; either version 2 of the License, or */ /* (at your option) any later version. */ /* */ /* This program is distributed in the hope that it will be useful, */ /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ /* GNU General Public License for more details. */ /* */ /* This file contains structures and definitions for IBM RPA (RS/6000 */ /* platform architecture) implementation of the SRP (SCSI RDMA Protocol) */ /* standard. SRP is used on IBM iSeries and pSeries platforms to send SCSI */ /* commands between logical partitions. */ /* */ /* SRP Information Units (IUs) are sent on a "Command/Response Queue" (CRQ) */ /* between partitions. The definitions in this file are architected, */ /* and cannot be changed without breaking compatibility with other versions */ /* of Linux and other operating systems (AIX, OS/400) that talk this protocol*/ /* between logical partitions */ /*****************************************************************************/ #ifndef VIOSRP_H #define VIOSRP_H #include <scsi/srp.h> #define SRP_VERSION "16.a" #define SRP_MAX_IU_LEN 256 #define SRP_MAX_LOC_LEN 32 union srp_iu { struct srp_login_req login_req; struct srp_login_rsp login_rsp; struct srp_login_rej login_rej; struct srp_i_logout i_logout; struct srp_t_logout t_logout; struct srp_tsk_mgmt tsk_mgmt; struct srp_cmd cmd; struct srp_rsp rsp; u8 reserved[SRP_MAX_IU_LEN]; }; enum viosrp_crq_headers { VIOSRP_CRQ_FREE = 0x00, VIOSRP_CRQ_CMD_RSP = 0x80, VIOSRP_CRQ_INIT_RSP = 0xC0, VIOSRP_CRQ_XPORT_EVENT = 0xFF }; enum viosrp_crq_init_formats { VIOSRP_CRQ_INIT = 0x01, VIOSRP_CRQ_INIT_COMPLETE = 0x02 }; enum viosrp_crq_formats { VIOSRP_SRP_FORMAT = 0x01, VIOSRP_MAD_FORMAT = 0x02, VIOSRP_OS400_FORMAT = 0x03, VIOSRP_AIX_FORMAT = 0x04, VIOSRP_LINUX_FORMAT = 0x05, VIOSRP_INLINE_FORMAT = 0x06 }; enum viosrp_crq_status { VIOSRP_OK = 0x0, VIOSRP_NONRECOVERABLE_ERR = 0x1, VIOSRP_VIOLATES_MAX_XFER = 0x2, VIOSRP_PARTNER_PANIC = 0x3, VIOSRP_DEVICE_BUSY = 0x8, VIOSRP_ADAPTER_FAIL = 0x10, VIOSRP_OK2 = 0x99, }; struct viosrp_crq { u8 valid; /* used by RPA */ u8 format; /* SCSI vs out-of-band */ u8 reserved; u8 status; /* non-scsi failure? (e.g. DMA failure) */ __be16 timeout; /* in seconds */ __be16 IU_length; /* in bytes */ __be64 IU_data_ptr; /* the TCE for transferring data */ }; /* MADs are Management requests above and beyond the IUs defined in the SRP * standard. */ enum viosrp_mad_types { VIOSRP_EMPTY_IU_TYPE = 0x01, VIOSRP_ERROR_LOG_TYPE = 0x02, VIOSRP_ADAPTER_INFO_TYPE = 0x03, VIOSRP_CAPABILITIES_TYPE = 0x05, VIOSRP_ENABLE_FAST_FAIL = 0x08, }; enum viosrp_mad_status { VIOSRP_MAD_SUCCESS = 0x00, VIOSRP_MAD_NOT_SUPPORTED = 0xF1, VIOSRP_MAD_FAILED = 0xF7, }; enum viosrp_capability_type { MIGRATION_CAPABILITIES = 0x01, RESERVATION_CAPABILITIES = 0x02, }; enum viosrp_capability_support { SERVER_DOES_NOT_SUPPORTS_CAP = 0x0, SERVER_SUPPORTS_CAP = 0x01, SERVER_CAP_DATA = 0x02, }; enum viosrp_reserve_type { CLIENT_RESERVE_SCSI_2 = 0x01, }; enum viosrp_capability_flag { CLIENT_MIGRATED = 0x01, CLIENT_RECONNECT = 0x02, CAP_LIST_SUPPORTED = 0x04, CAP_LIST_DATA = 0x08, }; /* * Common MAD header */ struct mad_common { __be32 type; __be16 status; __be16 length; __be64 tag; }; /* * All SRP (and MAD) requests normally flow from the * client to the server. There is no way for the server to send * an asynchronous message back to the client. The Empty IU is used * to hang out a meaningless request to the server so that it can respond * asynchrouously with something like a SCSI AER */ struct viosrp_empty_iu { struct mad_common common; __be64 buffer; __be32 port; }; struct viosrp_error_log { struct mad_common common; __be64 buffer; }; struct viosrp_adapter_info { struct mad_common common; __be64 buffer; }; struct viosrp_fast_fail { struct mad_common common; }; struct viosrp_capabilities { struct mad_common common; __be64 buffer; }; struct mad_capability_common { __be32 cap_type; __be16 length; __be16 server_support; }; struct mad_reserve_cap { struct mad_capability_common common; __be32 type; }; struct mad_migration_cap { struct mad_capability_common common; __be32 ecl; }; struct capabilities { __be32 flags; char name[SRP_MAX_LOC_LEN]; char loc[SRP_MAX_LOC_LEN]; struct mad_migration_cap migration; struct mad_reserve_cap reserve; }; union mad_iu { struct viosrp_empty_iu empty_iu; struct viosrp_error_log error_log; struct viosrp_adapter_info adapter_info; struct viosrp_fast_fail fast_fail; struct viosrp_capabilities capabilities; }; union viosrp_iu { union srp_iu srp; union mad_iu mad; }; struct mad_adapter_info_data { char srp_version[8]; char partition_name[96]; __be32 partition_number; #define SRP_MAD_VERSION_1 1 __be32 mad_version; #define SRP_MAD_OS_LINUX 2 #define SRP_MAD_OS_AIX 3 __be32 os_type; __be32 port_max_txu[8]; /* per-port maximum transfer */ }; #endif