drivers/s390/char/sclp_diag.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *    Copyright IBM Corp. 2013
   4  *    Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
   5  */
   6
   7 #ifndef _SCLP_DIAG_H
   8 #define _SCLP_DIAG_H
   9
  10 #include <linux/types.h>
  11
  12 /* return codes for Diagnostic Test FTP Service, as indicated in member
  13  * sclp_diag_ftp::ldflg
  14  */
  15 #define SCLP_DIAG_FTP_OK        0x80U /* success */
  16 #define SCLP_DIAG_FTP_LDFAIL    0x01U /* load failed */
  17 #define SCLP_DIAG_FTP_LDNPERM   0x02U /* not allowed */
  18 #define SCLP_DIAG_FTP_LDRUNS    0x03U /* LD runs */
  19 #define SCLP_DIAG_FTP_LDNRUNS   0x04U /* LD does not run */
  20
  21 #define SCLP_DIAG_FTP_XPCX      0x80 /* PCX communication code */
  22 #define SCLP_DIAG_FTP_ROUTE     4 /* routing code for new FTP service */
  23
  24 /*
  25  * length of Diagnostic Test FTP Service event buffer
  26  */
  27 #define SCLP_DIAG_FTP_EVBUF_LEN                         \
  28         (offsetof(struct sclp_diag_evbuf, mdd) +        \
  29          sizeof(struct sclp_diag_ftp))
  30
  31 /**
  32  * struct sclp_diag_ftp - Diagnostic Test FTP Service model-dependent data
  33  * @pcx: code for PCX communication (should be 0x80)
  34  * @ldflg: load flag (see defines above)
  35  * @cmd: FTP command
  36  * @pgsize: page size (0 = 4kB, 1 = large page size)
  37  * @srcflg: source flag
  38  * @spare: reserved (zeroes)
  39  * @offset: file offset
  40  * @fsize: file size
  41  * @length: buffer size resp. bytes transferred
  42  * @failaddr: failing address
  43  * @bufaddr: buffer address, virtual
  44  * @asce: region or segment table designation
  45  * @fident: file name (ASCII, zero-terminated)
  46  */
  47 struct sclp_diag_ftp {
  48         u8 pcx;
  49         u8 ldflg;
  50         u8 cmd;
  51         u8 pgsize;
  52         u8 srcflg;
  53         u8 spare;
  54         u64 offset;
  55         u64 fsize;
  56         u64 length;
  57         u64 failaddr;
  58         u64 bufaddr;
  59         u64 asce;
  60
  61         u8 fident[256];
  62 } __packed;
  63
  64 /**
  65  * struct sclp_diag_evbuf - Diagnostic Test (ET7) Event Buffer
  66  * @hdr: event buffer header
  67  * @route: diagnostic route
  68  * @mdd: model-dependent data (@route dependent)
  69  */
  70 struct sclp_diag_evbuf {
  71         struct evbuf_header hdr;
  72         u16 route;
  73
  74         union {
  75                 struct sclp_diag_ftp ftp;
  76         } mdd;
  77 } __packed;
  78
  79 /**
  80  * struct sclp_diag_sccb - Diagnostic Test (ET7) SCCB
  81  * @hdr: SCCB header
  82  * @evbuf: event buffer
  83  */
  84 struct sclp_diag_sccb {
  85
  86         struct sccb_header hdr;
  87         struct sclp_diag_evbuf evbuf;
  88 } __packed;
  89
  90 #endif /* _SCLP_DIAG_H */