/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * FC Transport BSG Interface * * Copyright (C) 2008 James Smart, Emulex Corporation */ #ifndef SCSI_BSG_FC_H #define SCSI_BSG_FC_H #include <linux/types.h> /* * This file intended to be included by both kernel and user space */ /* * FC Transport SGIO v4 BSG Message Support */ /* Default BSG request timeout (in seconds) */ #define FC_DEFAULT_BSG_TIMEOUT … /* * Request Message Codes supported by the FC Transport */ /* define the class masks for the message codes */ #define FC_BSG_CLS_MASK … #define FC_BSG_HST_MASK … #define FC_BSG_RPT_MASK … /* fc_host Message Codes */ #define FC_BSG_HST_ADD_RPORT … #define FC_BSG_HST_DEL_RPORT … #define FC_BSG_HST_ELS_NOLOGIN … #define FC_BSG_HST_CT … #define FC_BSG_HST_VENDOR … /* fc_rport Message Codes */ #define FC_BSG_RPT_ELS … #define FC_BSG_RPT_CT … /* * FC Address Identifiers in Message Structures : * * Whenever a command payload contains a FC Address Identifier * (aka port_id), the value is effectively in big-endian * order, thus the array elements are decoded as follows: * element [0] is bits 23:16 of the FC Address Identifier * element [1] is bits 15:8 of the FC Address Identifier * element [2] is bits 7:0 of the FC Address Identifier */ /* * FC Host Messages */ /* FC_BSG_HST_ADDR_PORT : */ /* Request: * This message requests the FC host to login to the remote port * at the specified N_Port_Id. The remote port is to be enumerated * with the transport upon completion of the login. */ struct fc_bsg_host_add_rport { … }; /* Response: * There is no additional response data - fc_bsg_reply->result is sufficient */ /* FC_BSG_HST_DEL_RPORT : */ /* Request: * This message requests the FC host to remove an enumerated * remote port and to terminate the login to it. * * Note: The driver is free to reject this request if it desires to * remain logged in with the remote port. */ struct fc_bsg_host_del_rport { … }; /* Response: * There is no additional response data - fc_bsg_reply->result is sufficient */ /* FC_BSG_HST_ELS_NOLOGIN : */ /* Request: * This message requests the FC_Host to send an ELS to a specific * N_Port_ID. The host does not need to log into the remote port, * nor does it need to enumerate the rport for further traffic * (although, the FC host is free to do so if it desires). */ struct fc_bsg_host_els { … }; /* Response: */ /* fc_bsg_ctels_reply->status values */ #define FC_CTELS_STATUS_OK … #define FC_CTELS_STATUS_REJECT … #define FC_CTELS_STATUS_P_RJT … #define FC_CTELS_STATUS_F_RJT … #define FC_CTELS_STATUS_P_BSY … #define FC_CTELS_STATUS_F_BSY … struct fc_bsg_ctels_reply { … }; /* FC_BSG_HST_CT : */ /* Request: * This message requests that a CT Request be performed with the * indicated N_Port_ID. The driver is responsible for logging in with * the fabric and/or N_Port_ID, etc as per FC rules. This request does * not mandate that the driver must enumerate the destination in the * transport. The driver is allowed to decide whether to enumerate it, * and whether to tear it down after the request. */ struct fc_bsg_host_ct { … }; /* Response: * * The reply structure is an fc_bsg_ctels_reply structure */ /* FC_BSG_HST_VENDOR : */ /* Request: * Note: When specifying vendor_id, be sure to read the Vendor Type and ID * formatting requirements specified in scsi_netlink.h */ struct fc_bsg_host_vendor { … }; /* Response: */ struct fc_bsg_host_vendor_reply { … }; /* * FC Remote Port Messages */ /* FC_BSG_RPT_ELS : */ /* Request: * This message requests that an ELS be performed with the rport. */ struct fc_bsg_rport_els { … }; /* Response: * * The reply structure is an fc_bsg_ctels_reply structure */ /* FC_BSG_RPT_CT : */ /* Request: * This message requests that a CT Request be performed with the rport. */ struct fc_bsg_rport_ct { … }; /* Response: * * The reply structure is an fc_bsg_ctels_reply structure */ /* request (CDB) structure of the sg_io_v4 */ struct fc_bsg_request { … } __attribute__((packed)); /* response (request sense data) structure of the sg_io_v4 */ struct fc_bsg_reply { … }; #endif /* SCSI_BSG_FC_H */
Codebase Browser
linux