Pull SCSI updates from James Bottomley: "This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380, qla2xxx, lpfc, libsas, hisi_sas. In addition there's a set of mostly small updates to the target subsystem a set of conversions to the generic DMA API, which do have some potential for issues in the older drivers but we'll handle those as case by case fixes. A new myrs driver for the DAC960/mylex raid controllers to replace the block based DAC960 which is also being removed by Jens in this merge window. Plus the usual slew of trivial changes" [ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even wonder. There's also a "myrb" driver, where the 'b' stands for 'block'. Truly, somebody has got mad naming skillz. - Linus ] * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits) scsi: myrs: Fix the processor absent message in processor_show() scsi: myrs: Fix a logical vs bitwise bug scsi: hisi_sas: Fix NULL pointer dereference scsi: myrs: fix build failure on 32 bit scsi: fnic: replace gross legacy tag hack with blk-mq hack scsi: mesh: switch to generic DMA API scsi: ips: switch to generic DMA API scsi: smartpqi: fully convert to the generic DMA API scsi: vmw_pscsi: switch to generic DMA API scsi: snic: switch to generic DMA API scsi: qla4xxx: fully convert to the generic DMA API scsi: qla2xxx: fully convert to the generic DMA API scsi: qla1280: switch to generic DMA API scsi: qedi: fully convert to the generic DMA API scsi: qedf: fully convert to the generic DMA API scsi: pm8001: switch to generic DMA API scsi: nsp32: switch to generic DMA API scsi: mvsas: fully convert to the generic DMA API scsi: mvumi: switch to generic DMA API scsi: mpt3sas: switch to generic DMA API ...
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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ | ||
| 2 | /* | ||
| 3 | * UFS Transport SGIO v4 BSG Message Support | ||
| 4 | * | ||
| 5 | * Copyright (C) 2011-2013 Samsung India Software Operations | ||
| 6 | * Copyright (C) 2018 Western Digital Corporation | ||
| 7 | */ | ||
| 8 | #ifndef SCSI_BSG_UFS_H | ||
| 9 | #define SCSI_BSG_UFS_H | ||
| 10 | |||
| 11 | #include <linux/types.h> | ||
| 12 | /* | ||
| 13 | * This file intended to be included by both kernel and user space | ||
| 14 | */ | ||
| 15 | |||
| 16 | #define UFS_CDB_SIZE 16 | ||
| 17 | #define UPIU_TRANSACTION_UIC_CMD 0x1F | ||
| 18 | /* uic commands are 4DW long, per UFSHCI V2.1 paragraph 5.6.1 */ | ||
| 19 | #define UIC_CMD_SIZE (sizeof(__u32) * 4) | ||
| 20 | |||
| 21 | /** | ||
| 22 | * struct utp_upiu_header - UPIU header structure | ||
| 23 | * @dword_0: UPIU header DW-0 | ||
| 24 | * @dword_1: UPIU header DW-1 | ||
| 25 | * @dword_2: UPIU header DW-2 | ||
| 26 | */ | ||
| 27 | struct utp_upiu_header { | ||
| 28 | __be32 dword_0; | ||
| 29 | __be32 dword_1; | ||
| 30 | __be32 dword_2; | ||
| 31 | }; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * struct utp_upiu_query - upiu request buffer structure for | ||
| 35 | * query request. | ||
| 36 | * @opcode: command to perform B-0 | ||
| 37 | * @idn: a value that indicates the particular type of data B-1 | ||
| 38 | * @index: Index to further identify data B-2 | ||
| 39 | * @selector: Index to further identify data B-3 | ||
| 40 | * @reserved_osf: spec reserved field B-4,5 | ||
| 41 | * @length: number of descriptor bytes to read/write B-6,7 | ||
| 42 | * @value: Attribute value to be written DW-5 | ||
| 43 | * @reserved: spec reserved DW-6,7 | ||
| 44 | */ | ||
| 45 | struct utp_upiu_query { | ||
| 46 | __u8 opcode; | ||
| 47 | __u8 idn; | ||
| 48 | __u8 index; | ||
| 49 | __u8 selector; | ||
| 50 | __be16 reserved_osf; | ||
| 51 | __be16 length; | ||
| 52 | __be32 value; | ||
| 53 | __be32 reserved[2]; | ||
| 54 | }; | ||
| 55 | |||
| 56 | /** | ||
| 57 | * struct utp_upiu_cmd - Command UPIU structure | ||
| 58 | * @data_transfer_len: Data Transfer Length DW-3 | ||
| 59 | * @cdb: Command Descriptor Block CDB DW-4 to DW-7 | ||
| 60 | */ | ||
| 61 | struct utp_upiu_cmd { | ||
| 62 | __be32 exp_data_transfer_len; | ||
| 63 | __u8 cdb[UFS_CDB_SIZE]; | ||
| 64 | }; | ||
| 65 | |||
| 66 | /** | ||
| 67 | * struct utp_upiu_req - general upiu request structure | ||
| 68 | * @header:UPIU header structure DW-0 to DW-2 | ||
| 69 | * @sc: fields structure for scsi command DW-3 to DW-7 | ||
| 70 | * @qr: fields structure for query request DW-3 to DW-7 | ||
| 71 | */ | ||
| 72 | struct utp_upiu_req { | ||
| 73 | struct utp_upiu_header header; | ||
| 74 | union { | ||
| 75 | struct utp_upiu_cmd sc; | ||
| 76 | struct utp_upiu_query qr; | ||
| 77 | struct utp_upiu_query tr; | ||
| 78 | /* use utp_upiu_query to host the 4 dwords of uic command */ | ||
| 79 | struct utp_upiu_query uc; | ||
| 80 | }; | ||
| 81 | }; | ||
| 82 | |||
| 83 | /* request (CDB) structure of the sg_io_v4 */ | ||
| 84 | struct ufs_bsg_request { | ||
| 85 | __u32 msgcode; | ||
| 86 | struct utp_upiu_req upiu_req; | ||
| 87 | }; | ||
| 88 | |||
| 89 | /* response (request sense data) structure of the sg_io_v4 */ | ||
| 90 | struct ufs_bsg_reply { | ||
| 91 | /* | ||
| 92 | * The completion result. Result exists in two forms: | ||
| 93 | * if negative, it is an -Exxx system errno value. There will | ||
| 94 | * be no further reply information supplied. | ||
| 95 | * else, it's the 4-byte scsi error result, with driver, host, | ||
| 96 | * msg and status fields. The per-msgcode reply structure | ||
| 97 | * will contain valid data. | ||
| 98 | */ | ||
| 99 | __u32 result; | ||
| 100 | |||
| 101 | /* If there was reply_payload, how much was received? */ | ||
| 102 | __u32 reply_payload_rcv_len; | ||
| 103 | |||
| 104 | struct utp_upiu_req upiu_rsp; | ||
| 105 | }; | ||
| 106 | #endif /* UFS_BSG_H */ | ||