/* SPDX-License-Identifier: GPL-2.0-only */ /* * SAS structures and definitions header file * * Copyright (C) 2005 Adaptec, Inc. All rights reserved. * Copyright (C) 2005 Luben Tuikov <[email protected]> */ #ifndef _SAS_H_ #define _SAS_H_ #include <linux/types.h> #include <asm/byteorder.h> #define SAS_ADDR_SIZE … #define HASHED_SAS_ADDR_SIZE … #define SAS_ADDR(_sa) … #define SMP_REQUEST … #define SMP_RESPONSE … #define SSP_DATA … #define SSP_XFER_RDY … #define SSP_COMMAND … #define SSP_RESPONSE … #define SSP_TASK … #define SMP_REPORT_GENERAL … #define SMP_REPORT_MANUF_INFO … #define SMP_READ_GPIO_REG … #define SMP_DISCOVER … #define SMP_REPORT_PHY_ERR_LOG … #define SMP_REPORT_PHY_SATA … #define SMP_REPORT_ROUTE_INFO … #define SMP_WRITE_GPIO_REG … #define SMP_CONF_ROUTE_INFO … #define SMP_PHY_CONTROL … #define SMP_PHY_TEST_FUNCTION … #define SMP_RESP_FUNC_ACC … #define SMP_RESP_FUNC_UNK … #define SMP_RESP_FUNC_FAILED … #define SMP_RESP_INV_FRM_LEN … #define SMP_RESP_NO_PHY … #define SMP_RESP_NO_INDEX … #define SMP_RESP_PHY_NO_SATA … #define SMP_RESP_PHY_UNK_OP … #define SMP_RESP_PHY_UNK_TESTF … #define SMP_RESP_PHY_TEST_INPROG … #define SMP_RESP_PHY_VACANT … /* SAM TMFs */ #define TMF_ABORT_TASK … #define TMF_ABORT_TASK_SET … #define TMF_CLEAR_TASK_SET … #define TMF_LU_RESET … #define TMF_CLEAR_ACA … #define TMF_QUERY_TASK … /* SAS TMF responses */ #define TMF_RESP_FUNC_COMPLETE … #define TMF_RESP_INVALID_FRAME … #define TMF_RESP_FUNC_ESUPP … #define TMF_RESP_FUNC_FAILED … #define TMF_RESP_FUNC_SUCC … #define TMF_RESP_NO_LUN … #define TMF_RESP_OVERLAPPED_TAG … enum sas_oob_mode { … }; /* See sas_discover.c if you plan on changing these */ enum sas_device_type { … }; enum sas_protocol { … }; /* From the spec; local phys only */ enum phy_func { … }; /* SAS LLDD would need to report only _very_few_ of those, like BROADCAST. * Most of those are here for completeness. */ enum sas_prim { … }; enum sas_open_rej_reason { … }; enum sas_gpio_reg_type { … }; /* Response frame DATAPRES field */ enum { … }; struct dev_to_host_fis { … } __attribute__ ((packed)); struct host_to_dev_fis { … } __attribute__ ((packed)); /* Prefer to have code clarity over header file clarity. */ #ifdef __LITTLE_ENDIAN_BITFIELD struct sas_identify_frame { … } __attribute__ ((packed)); struct ssp_frame_hdr { … } __attribute__ ((packed)); struct ssp_response_iu { … } __attribute__ ((packed)); struct ssp_command_iu { … } __attribute__ ((packed)); struct xfer_rdy_iu { … } __attribute__ ((packed)); struct ssp_tmf_iu { … } __attribute__ ((packed)); /* ---------- SMP ---------- */ struct report_general_resp { … } __attribute__ ((packed)); struct discover_resp { … } __attribute__ ((packed)); struct report_phy_sata_resp { … } __attribute__ ((packed)); #elif defined(__BIG_ENDIAN_BITFIELD) struct sas_identify_frame { /* Byte 0 */ u8 _un0:1; u8 dev_type:3; u8 frame_type:4; /* Byte 1 */ u8 _un1; /* Byte 2 */ union { struct { u8 _un247:4; u8 ssp_iport:1; u8 stp_iport:1; u8 smp_iport:1; u8 _un20:1; }; u8 initiator_bits; }; /* Byte 3 */ union { struct { u8 _un347:4; u8 ssp_tport:1; u8 stp_tport:1; u8 smp_tport:1; u8 _un30:1; }; u8 target_bits; }; /* Byte 4 - 11 */ u8 _un4_11[8]; /* Byte 12 - 19 */ u8 sas_addr[SAS_ADDR_SIZE]; /* Byte 20 */ u8 phy_id; u8 _un21_27[7]; __be32 crc; } __attribute__ ((packed)); struct ssp_frame_hdr { u8 frame_type; u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE]; u8 _r_a; u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE]; __be16 _r_b; u8 _r_c:5; u8 retry_data_frames:1; u8 retransmit:1; u8 changing_data_ptr:1; u8 _r_d:6; u8 num_fill_bytes:2; u32 _r_e; __be16 tag; __be16 tptt; __be32 data_offs; } __attribute__ ((packed)); struct ssp_response_iu { u8 _r_a[10]; u8 _r_b:6; u8 datapres:2; u8 status; u32 _r_c; __be32 sense_data_len; __be32 response_data_len; union { DECLARE_FLEX_ARRAY(u8, resp_data); DECLARE_FLEX_ARRAY(u8, sense_data); }; } __attribute__ ((packed)); struct ssp_command_iu { u8 lun[8]; u8 _r_a; union { struct { u8 efb:1; u8 prio:4; u8 attr:3; }; u8 efb_prio_attr; }; u8 _r_b; u8 add_cdb_len:6; u8 _r_c:2; u8 cdb[16]; u8 add_cdb[]; } __attribute__ ((packed)); struct xfer_rdy_iu { __be32 requested_offset; __be32 write_data_len; __be32 _r_a; } __attribute__ ((packed)); struct ssp_tmf_iu { u8 lun[8]; u16 _r_a; u8 tmf; u8 _r_b; __be16 tag; u8 _r_c[14]; } __attribute__ ((packed)); /* ---------- SMP ---------- */ struct report_general_resp { __be16 change_count; __be16 route_indexes; u8 _r_a; u8 num_phys; u8 t2t_supp:1; u8 zone_config:1; u8 self_config:1; u8 stp_cont_awt:1; u8 orej_retry_supp:1; u8 config_others:1; u8 configuring:1; u8 conf_route_table:1; u8 _r_c; u8 enclosure_logical_id[8]; u8 _r_d[12]; } __attribute__ ((packed)); struct discover_resp { u8 _r_a[5]; u8 phy_id; __be16 _r_b; u8 _r_d:1; u8 attached_dev_type:3; u8 _r_c:4; u8 _r_e:4; u8 linkrate:4; u8 _r_f:4; u8 iproto:3; u8 attached_sata_host:1; u8 attached_sata_ps:1; u8 _r_g:3; u8 tproto:3; u8 attached_sata_dev:1; u8 sas_addr[8]; u8 attached_sas_addr[8]; u8 attached_phy_id; u8 _r_h[7]; u8 pmin_linkrate:4; u8 hmin_linkrate:4; u8 pmax_linkrate:4; u8 hmax_linkrate:4; u8 change_count; u8 virtual:1; u8 _r_i:3; u8 pptv:4; u8 _r_j:4; u8 routing_attr:4; u8 conn_type; u8 conn_el_index; u8 conn_phy_link; u8 _r_k[8]; } __attribute__ ((packed)); struct report_phy_sata_resp { u8 _r_a[5]; u8 phy_id; u8 _r_b; u8 _r_c:6; u8 affil_supp:1; u8 affil_valid:1; u32 _r_d; u8 stp_sas_addr[8]; struct dev_to_host_fis fis; u32 _r_e; u8 affil_stp_ini_addr[8]; __be32 crc; } __attribute__ ((packed)); #else #error "Bitfield order not defined!" #endif struct smp_rg_resp { … } __attribute__ ((packed)); struct smp_disc_resp { … } __attribute__ ((packed)); struct smp_rps_resp { … } __attribute__ ((packed)); #endif /* _SAS_H_ */
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