riscv-gnu-toolchain/gcc.git - Unnamed repository; edit this file 'description' to name the repository.

Age	Commit message (Expand)	Author	Files	Lines
2005-06-01	[multiple changes]	Diego Novillo	1	-32/+114
2005-06-01	basic-block.h, [...]: Don't include errors.h and include toplev.h if necessary.	Kaveh R. Ghazi	1	-1/+0
2005-05-23	tree-ssa-dom.c (cprop_into_stmt): Do not call recompute_tree_invariant_for_ad...	Jeff Law	1	-1/+7
2005-05-16	re PR tree-optimization/21399 (libstdc++ 12077.cc ICE)	Richard Henderson	1	-1/+2
2005-05-11	re PR middle-end/19807 (fold does not fold &a[4]-1)	Richard Guenther	1	-0/+6
2005-05-03	lambda-code.c (gcc_loop_to_lambda_loop, [...]): Use generic operand interface.	Andrew MacLeod	1	-10/+10
2005-04-27	tree-ssa-propagate.c (set_rhs): Revert last change.	Richard Guenther	1	-2/+1
2005-04-27	tree-ssa-propagate.c (set_rhs): Check operand of ADDR_EXPR for gimpliness, too.	Richard Guenther	1	-1/+2
2005-04-24	tree-ssa-copy.c (copy_prop_visit_cond_stmt): Use COMPARISON_CLASS_P.	Kazu Hirata	1	-2/+2
2005-04-21	vec.h: Update API to separate allocation mechanism from type.	Nathan Sidwell	1	-9/+9
2005-04-17	tree-flow-inline.h (get_stmt_operands): Remove.	Kazu Hirata	1	-2/+0
2005-04-08	backport: copy-prop, incremental SSA updating of FUD chains and newly exposed...	Diego Novillo	1	-2/+413
2005-04-05	lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use update_stmt.	Andrew MacLeod	1	-7/+4
2004-11-18	tree-ssa-propagate.c (ssa_prop_init): Use FOR_ALL_BB instead of FOR_EACH_BB.	Diego Novillo	1	-2/+3
2004-11-17	* tree-ssa-propagate.c (cfg_blocks_add) Assert we're not trying	Steven Bosscher	1	-11/+3
2004-09-28	Makefile.in (tree-ssa-propagate.o): Depend on vec.h.	Steven Bosscher	1	-19/+21
2004-09-28	backport: basic-block.h: Include vec.h, errors.h.	Ben Elliston	1	-4/+7
2004-09-23	* tree-ssa-propagate.c (set_rhs): Fail if EXPR is COMPOUND_EXPR.	Jakub Jelinek	1	-0/+2
2004-09-17	alias.c (find_base_decl): Remove unreachable case '3' block.	Jeffrey D. Oldham	1	-2/+2
2004-09-09	targhooks.c (default_unwind_emit, [...]): Use gcc_assert, gcc_unreachable & i...	Giovanni Bajo	1	-4/+2
2004-09-05	c-common.c, [...]: Fix comment typos.	Kazu Hirata	1	-1/+1
2004-08-29	tree-ssa-ccp.c (ccp_visit_stmt): Remove #if 0 guards.	Diego Novillo	1	-2/+2
2004-08-29	Makefile.in (OBJS-common): Add tree-ssa-propagate.o	Diego Novillo	1	-0/+674

#ifndef _IPXE_ISCSI_H #define _IPXE_ISCSI_H /** @file * * iSCSI protocol * */ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <stdint.h> #include <ipxe/socket.h> #include <ipxe/scsi.h> #include <ipxe/chap.h> #include <ipxe/refcnt.h> #include <ipxe/xfer.h> #include <ipxe/process.h> #include <ipxe/acpi.h> #include <ipxe/settings.h> /** Default iSCSI port */ #define ISCSI_PORT 3260 /** * iSCSI segment lengths * * iSCSI uses an icky structure with one one-byte field (a dword * count) and one three-byte field (a byte count). This structure, * and the accompanying macros, relieve some of the pain. */ union iscsi_segment_lengths { struct { /** The AHS length (measured in dwords) */ uint8_t ahs_len; /** The data length (measured in bytes), in network * byte order */ uint8_t data_len[3]; } bytes; /** The data length (measured in bytes), in network byte * order, with ahs_len as the first byte. */ uint32_t ahs_and_data_len; }; /** The length of the additional header segment, in dwords */ #define ISCSI_AHS_LEN( segment_lengths ) \ ( (segment_lengths).bytes.ahs_len ) /** The length of the data segment, in bytes, excluding any padding */ #define ISCSI_DATA_LEN( segment_lengths ) \ ( ntohl ( (segment_lengths).ahs_and_data_len ) & 0xffffff ) /** The padding of the data segment, in bytes */ #define ISCSI_DATA_PAD_LEN( segment_lengths ) \ ( ( 0 - (segment_lengths).bytes.data_len[2] ) & 0x03 ) /** Set additional header and data segment lengths */ #define ISCSI_SET_LENGTHS( segment_lengths, ahs_len, data_len ) do { \ (segment_lengths).ahs_and_data_len = \ htonl ( data_len | ( ahs_len << 24 ) ); \ } while ( 0 ) /** * iSCSI basic header segment common fields * */ struct iscsi_bhs_common { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Fields specific to the PDU type */ uint8_t other_a[2]; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Fields specific to the PDU type */ uint8_t other_b[8]; /** Initiator Task Tag */ uint32_t itt; /** Fields specific to the PDU type */ uint8_t other_c[28]; }; /** Opcode mask */ #define ISCSI_OPCODE_MASK 0x3f /** Immediate delivery */ #define ISCSI_FLAG_IMMEDIATE 0x40 /** Final PDU of a sequence */ #define ISCSI_FLAG_FINAL 0x80 /** iSCSI tag magic marker */ #define ISCSI_TAG_MAGIC 0x18ae0000 /** iSCSI reserved tag value */ #define ISCSI_TAG_RESERVED 0xffffffff /** * iSCSI basic header segment common request fields * */ struct iscsi_bhs_common_response { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Fields specific to the PDU type */ uint8_t other_a[2]; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Fields specific to the PDU type */ uint8_t other_b[8]; /** Initiator Task Tag */ uint32_t itt; /** Fields specific to the PDU type */ uint8_t other_c[4]; /** Status sequence number */ uint32_t statsn; /** Expected command sequence number */ uint32_t expcmdsn; /** Fields specific to the PDU type */ uint8_t other_d[16]; }; /** * iSCSI login request basic header segment * */ struct iscsi_bhs_login_request { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Maximum supported version number */ uint8_t version_max; /** Minimum supported version number */ uint8_t version_min; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Initiator session ID (IANA format) enterprise number and flags */ uint32_t isid_iana_en; /** Initiator session ID (IANA format) qualifier */ uint16_t isid_iana_qual; /** Target session identifying handle */ uint16_t tsih; /** Initiator Task Tag */ uint32_t itt; /** Connection ID */ uint16_t cid; /** Reserved */ uint16_t reserved_a; /** Command sequence number */ uint32_t cmdsn; /** Expected status sequence number */ uint32_t expstatsn; /** Reserved */ uint8_t reserved_b[16]; }; /** Login request opcode */ #define ISCSI_OPCODE_LOGIN_REQUEST 0x03 /** Willingness to transition to next stage */ #define ISCSI_LOGIN_FLAG_TRANSITION 0x80 /** Key=value pairs continued in subsequent request */ #define ISCSI_LOGIN_FLAG_CONTINUE 0x40 /* Current stage values and mask */ #define ISCSI_LOGIN_CSG_MASK 0x0c #define ISCSI_LOGIN_CSG_SECURITY_NEGOTIATION 0x00 #define ISCSI_LOGIN_CSG_OPERATIONAL_NEGOTIATION 0x04 #define ISCSI_LOGIN_CSG_FULL_FEATURE_PHASE 0x0c /* Next stage values and mask */ #define ISCSI_LOGIN_NSG_MASK 0x03 #define ISCSI_LOGIN_NSG_SECURITY_NEGOTIATION 0x00 #define ISCSI_LOGIN_NSG_OPERATIONAL_NEGOTIATION 0x01 #define ISCSI_LOGIN_NSG_FULL_FEATURE_PHASE 0x03 /** ISID IANA format marker */ #define ISCSI_ISID_IANA 0x40000000 /** Fen Systems Ltd. IANA enterprise number * * Permission is hereby granted to use Fen Systems Ltd.'s IANA * enterprise number with this iSCSI implementation. */ #define IANA_EN_FEN_SYSTEMS 10019 /** * iSCSI login response basic header segment * */ struct iscsi_bhs_login_response { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Maximum supported version number */ uint8_t version_max; /** Minimum supported version number */ uint8_t version_min; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Initiator session ID (IANA format) enterprise number and flags */ uint32_t isid_iana_en; /** Initiator session ID (IANA format) qualifier */ uint16_t isid_iana_qual; /** Target session identifying handle */ uint16_t tsih; /** Initiator Task Tag */ uint32_t itt; /** Reserved */ uint32_t reserved_a; /** Status sequence number */ uint32_t statsn; /** Expected command sequence number */ uint32_t expcmdsn; /** Maximum command sequence number */ uint32_t maxcmdsn; /** Status class */ uint8_t status_class; /** Status detail */ uint8_t status_detail; /** Reserved */ uint8_t reserved_b[10]; }; /** Login response opcode */ #define ISCSI_OPCODE_LOGIN_RESPONSE 0x23 /* Login response status codes */ #define ISCSI_STATUS_SUCCESS 0x00 #define ISCSI_STATUS_REDIRECT 0x01 #define ISCSI_STATUS_INITIATOR_ERROR 0x02 #define ISCSI_STATUS_INITIATOR_ERROR_AUTHENTICATION 0x01 #define ISCSI_STATUS_INITIATOR_ERROR_AUTHORISATION 0x02 #define ISCSI_STATUS_INITIATOR_ERROR_NOT_FOUND 0x03 #define ISCSI_STATUS_INITIATOR_ERROR_REMOVED 0x04 #define ISCSI_STATUS_TARGET_ERROR 0x03 #define ISCSI_STATUS_TARGET_ERROR_UNAVAILABLE 0x01 #define ISCSI_STATUS_TARGET_ERROR_NO_RESOURCES 0x02 /** * iSCSI SCSI command basic header segment * */ struct iscsi_bhs_scsi_command { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Reserved */ uint16_t reserved_a; /** Segment lengths */ union iscsi_segment_lengths lengths; /** SCSI Logical Unit Number */ struct scsi_lun lun; /** Initiator Task Tag */ uint32_t itt; /** Expected data transfer length */ uint32_t exp_len; /** Command sequence number */ uint32_t cmdsn; /** Expected status sequence number */ uint32_t expstatsn; /** SCSI Command Descriptor Block (CDB) */ union scsi_cdb cdb; }; /** SCSI command opcode */ #define ISCSI_OPCODE_SCSI_COMMAND 0x01 /** Command will read data */ #define ISCSI_COMMAND_FLAG_READ 0x40 /** Command will write data */ #define ISCSI_COMMAND_FLAG_WRITE 0x20 /* Task attributes */ #define ISCSI_COMMAND_ATTR_UNTAGGED 0x00 #define ISCSI_COMMAND_ATTR_SIMPLE 0x01 #define ISCSI_COMMAND_ATTR_ORDERED 0x02 #define ISCSI_COMMAND_ATTR_HEAD_OF_QUEUE 0x03 #define ISCSI_COMMAND_ATTR_ACA 0x04 /** * iSCSI SCSI response basic header segment * */ struct iscsi_bhs_scsi_response { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Response code */ uint8_t response; /** SCSI status code */ uint8_t status; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Reserved */ uint8_t reserved_a[8]; /** Initiator Task Tag */ uint32_t itt; /** SNACK tag */ uint32_t snack; /** Status sequence number */ uint32_t statsn; /** Expected command sequence number */ uint32_t expcmdsn; /** Maximum command sequence number */ uint32_t maxcmdsn; /** Expected data sequence number */ uint32_t expdatasn; /** Bidirectional read residual count */ uint32_t bidi_residual_count; /** Residual count */ uint32_t residual_count; }; /** SCSI response opcode */ #define ISCSI_OPCODE_SCSI_RESPONSE 0x21 /** SCSI command completed at target */ #define ISCSI_RESPONSE_COMMAND_COMPLETE 0x00 /** SCSI target failure */ #define ISCSI_RESPONSE_TARGET_FAILURE 0x01 /** Data overflow occurred */ #define ISCSI_RESPONSE_FLAG_OVERFLOW 0x20 /** Data underflow occurred */ #define ISCSI_RESPONSE_FLAG_UNDERFLOW 0x40 /** * iSCSI data-in basic header segment * */ struct iscsi_bhs_data_in { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Reserved */ uint8_t reserved_a; /** SCSI status code */ uint8_t status; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Logical Unit Number */ struct scsi_lun lun; /** Initiator Task Tag */ uint32_t itt; /** Target Transfer Tag */ uint32_t ttt; /** Status sequence number */ uint32_t statsn; /** Expected command sequence number */ uint32_t expcmdsn; /** Maximum command sequence number */ uint32_t maxcmdsn; /** Data sequence number */ uint32_t datasn; /** Buffer offset */ uint32_t offset; /** Residual count */ uint32_t residual_count; }; /** Data-in opcode */ #define ISCSI_OPCODE_DATA_IN 0x25 /** Data requires acknowledgement */ #define ISCSI_DATA_FLAG_ACKNOWLEDGE 0x40 /** Data overflow occurred */ #define ISCSI_DATA_FLAG_OVERFLOW 0x04 /** Data underflow occurred */ #define ISCSI_DATA_FLAG_UNDERFLOW 0x02 /** SCSI status code and overflow/underflow flags are valid */ #define ISCSI_DATA_FLAG_STATUS 0x01 /** * iSCSI data-out basic header segment * */ struct iscsi_bhs_data_out { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Reserved */ uint16_t reserved_a; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Logical Unit Number */ struct scsi_lun lun; /** Initiator Task Tag */ uint32_t itt; /** Target Transfer Tag */ uint32_t ttt; /** Reserved */ uint32_t reserved_b; /** Expected status sequence number */ uint32_t expstatsn; /** Reserved */ uint32_t reserved_c; /** Data sequence number */ uint32_t datasn; /** Buffer offset */ uint32_t offset; /** Reserved */ uint32_t reserved_d; }; /** Data-out opcode */ #define ISCSI_OPCODE_DATA_OUT 0x05 /** * iSCSI request to transfer basic header segment * */ struct iscsi_bhs_r2t { /** Opcode */ uint8_t opcode; /** Flags */ uint8_t flags; /** Reserved */ uint16_t reserved_a; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Logical Unit Number */ struct scsi_lun lun; /** Initiator Task Tag */ uint32_t itt; /** Target Transfer Tag */ uint32_t ttt; /** Status sequence number */ uint32_t statsn; /** Expected command sequence number */ uint32_t expcmdsn; /** Maximum command sequence number */ uint32_t maxcmdsn; /** R2T sequence number */ uint32_t r2tsn; /** Buffer offset */ uint32_t offset; /** Desired data transfer length */ uint32_t len; }; /** R2T opcode */ #define ISCSI_OPCODE_R2T 0x31 /** * iSCSI NOP-In basic header segment * */ struct iscsi_nop_in { /** Opcode */ uint8_t opcode; /** Reserved */ uint8_t reserved_a[3]; /** Segment lengths */ union iscsi_segment_lengths lengths; /** Logical Unit Number */ struct scsi_lun lun; /** Initiator Task Tag */ uint32_t itt; /** Target Transfer Tag */ uint32_t ttt; /** Status sequence number */ uint32_t statsn; /** Expected command sequence number */ uint32_t expcmdsn; /** Maximum command sequence number */ uint32_t maxcmdsn; /** Reserved */ uint8_t reserved_b[12]; }; /** NOP-In opcode */ #define ISCSI_OPCODE_NOP_IN 0x20 /** * An iSCSI basic header segment */ union iscsi_bhs { struct iscsi_bhs_common common; struct iscsi_bhs_common_response common_response; struct iscsi_bhs_login_request login_request; struct iscsi_bhs_login_response login_response; struct iscsi_bhs_scsi_command scsi_command; struct iscsi_bhs_scsi_response scsi_response; struct iscsi_bhs_data_in data_in; struct iscsi_bhs_data_out data_out; struct iscsi_bhs_r2t r2t; struct iscsi_nop_in nop_in; unsigned char bytes[ sizeof ( struct iscsi_bhs_common ) ]; }; /** State of an iSCSI TX engine */ enum iscsi_tx_state { /** Nothing to send */ ISCSI_TX_IDLE = 0, /** Sending the basic header segment */ ISCSI_TX_BHS, /** Sending the additional header segment */ ISCSI_TX_AHS, /** Sending the data segment */ ISCSI_TX_DATA, }; /** State of an iSCSI RX engine */ enum iscsi_rx_state { /** Receiving the basic header segment */ ISCSI_RX_BHS = 0, /** Receiving the additional header segment */ ISCSI_RX_AHS, /** Receiving the data segment */ ISCSI_RX_DATA, /** Receiving the data segment padding */ ISCSI_RX_DATA_PADDING, }; /** An iSCSI session */ struct iscsi_session { /** Reference counter */ struct refcnt refcnt; /** SCSI command-issuing interface */ struct interface control; /** SCSI command interface */ struct interface data; /** Transport-layer socket */ struct interface socket; /** Initiator IQN */ char *initiator_iqn; /** Target address */ char *target_address; /** Target port */ unsigned int target_port; /** Target IQN */ char *target_iqn; /** Session status * * This is the bitwise-OR of zero or more ISCSI_STATUS_XXX * constants. */ int status; /** Initiator username (if any) */ char *initiator_username; /** Initiator password (if any) */ char *initiator_password; /** Target username (if any) */ char *target_username; /** Target password (if any) */ char *target_password; /** CHAP challenge (for target auth only) * * This is a block of random data; the first byte is used as * the CHAP identifier (CHAP_I) and the remainder as the CHAP * challenge (CHAP_C). */ unsigned char chap_challenge[17]; /** CHAP response (used for both initiator and target auth) */ struct chap_response chap; /** Initiator session ID (IANA format) qualifier * * This is part of the ISID. It is generated randomly * whenever a new connection is opened. */ uint16_t isid_iana_qual; /** Initiator task tag * * This is the tag of the current command. It is incremented * whenever a new command is started. */ uint32_t itt; /** Target transfer tag * * This is the tag attached to a sequence of data-out PDUs in * response to an R2T. */ uint32_t ttt; /** Transfer offset * * This is the offset for an in-progress sequence of data-out * PDUs in response to an R2T. */ uint32_t transfer_offset; /** Transfer length * * This is the length for an in-progress sequence of data-out * PDUs in response to an R2T. */ uint32_t transfer_len; /** Command sequence number * * This is the sequence number of the current command, used to * fill out the CmdSN field in iSCSI request PDUs. It is * updated with the value of the ExpCmdSN field whenever we * receive an iSCSI response PDU containing such a field. */ uint32_t cmdsn; /** Status sequence number * * This is the most recent status sequence number present in * the StatSN field of an iSCSI response PDU containing such a * field. Whenever we send an iSCSI request PDU, we fill out * the ExpStatSN field with this value plus one. */ uint32_t statsn; /** Basic header segment for current TX PDU */ union iscsi_bhs tx_bhs; /** State of the TX engine */ enum iscsi_tx_state tx_state; /** TX process */ struct process process; /** Basic header segment for current RX PDU */ union iscsi_bhs rx_bhs; /** State of the RX engine */ enum iscsi_rx_state rx_state; /** Byte offset within the current RX state */ size_t rx_offset; /** Length of the current RX state */ size_t rx_len; /** Buffer for received data (not always used) */ void *rx_buffer; /** Current SCSI command, if any */ struct scsi_cmd *command; /** Target socket address (for boot firmware table) */ struct sockaddr target_sockaddr; /** SCSI LUN (for boot firmware table) */ struct scsi_lun lun; /** ACPI descriptor */ struct acpi_descriptor desc; }; /** iSCSI session is currently in the security negotiation phase */ #define ISCSI_STATUS_SECURITY_NEGOTIATION_PHASE \ ( ISCSI_LOGIN_CSG_SECURITY_NEGOTIATION | \ ISCSI_LOGIN_NSG_OPERATIONAL_NEGOTIATION ) /** iSCSI session is currently in the operational parameter * negotiation phase */ #define ISCSI_STATUS_OPERATIONAL_NEGOTIATION_PHASE \ ( ISCSI_LOGIN_CSG_OPERATIONAL_NEGOTIATION | \ ISCSI_LOGIN_NSG_FULL_FEATURE_PHASE ) /** iSCSI session is currently in the full feature phase */ #define ISCSI_STATUS_FULL_FEATURE_PHASE ISCSI_LOGIN_CSG_FULL_FEATURE_PHASE /** Mask for all iSCSI session phases */ #define ISCSI_STATUS_PHASE_MASK ( ISCSI_LOGIN_CSG_MASK | ISCSI_LOGIN_NSG_MASK ) /** iSCSI session needs to send the initial security negotiation strings */ #define ISCSI_STATUS_STRINGS_SECURITY 0x0100 /** iSCSI session needs to send the CHAP_A string */ #define ISCSI_STATUS_STRINGS_CHAP_ALGORITHM 0x0200 /** iSCSI session needs to send the CHAP response */ #define ISCSI_STATUS_STRINGS_CHAP_RESPONSE 0x0400 /** iSCSI session needs to send the mutual CHAP challenge */ #define ISCSI_STATUS_STRINGS_CHAP_CHALLENGE 0x0800 /** iSCSI session needs to send the operational negotiation strings */ #define ISCSI_STATUS_STRINGS_OPERATIONAL 0x1000 /** Mask for all iSCSI "needs to send" flags */ #define ISCSI_STATUS_STRINGS_MASK 0xff00 /** Target has requested forward (initiator) authentication */ #define ISCSI_STATUS_AUTH_FORWARD_REQUIRED 0x00010000 /** Initiator requires target (reverse) authentication */ #define ISCSI_STATUS_AUTH_REVERSE_REQUIRED 0x00020000 /** Target authenticated itself correctly */ #define ISCSI_STATUS_AUTH_REVERSE_OK 0x00040000 /** Default initiator IQN prefix */ #define ISCSI_DEFAULT_IQN_PREFIX "iqn.2010-04.org.ipxe" extern const struct setting initiator_iqn_setting __setting ( SETTING_SANBOOT_EXTRA, initiator-iqn ); #endif /* _IPXE_ISCSI_H */