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 ...
Showing the changes to include/uapi (1 of 200 files). Show all
Unified · Split
| @@ -0,0 +1,106 @@ | ||
| 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 */ | |