architecture/riscv/package/linux-header/blkzoned.patch

   1 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   2 # This copyright note is auto-generated by scripts/Create-CopyPatch.
   3 #
   4 # T2 SDE: package/*/linux-header/blkzoned.patch
   5 # Copyright (C) 2021 The T2 SDE Project
   6 #
   7 # More information can be found in the files COPYING and README.
   8 #
   9 # This patch file is dual-licensed. It is available under the license the
  10 # patched project is licensed under, as long as it is an OpenSource license
  11 # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
  12 # of the GNU General Public License as published by the Free Software
  13 # Foundation; either version 2 of the License, or (at your option) any later
  14 # version.
  15 # --- T2-COPYRIGHT-NOTE-END ---
  16
  17 --- linux-5.1/include/uapi/linux/blkzoned.h.vanilla     2021-08-20 18:28:29.598771981 +0200
  18 +++ linux-5.1/include/uapi/linux/blkzoned.h     2021-08-20 18:27:40.197773951 +0200
  19 @@ -74,6 +74,15 @@
  20  };
  21
  22  /**
  23 + * enum blk_zone_report_flags - Feature flags of reported zone descriptors.
  24 + *
  25 + * @BLK_ZONE_REP_CAPACITY: Zone descriptor has capacity field.
  26 + */
  27 +enum blk_zone_report_flags {
  28 +       BLK_ZONE_REP_CAPACITY   = (1 << 0),
  29 +};
  30 +
  31 +/**
  32   * struct blk_zone - Zone descriptor for BLKREPORTZONE ioctl.
  33   *
  34   * @start: Zone start in 512 B sector units
  35 @@ -84,12 +93,15 @@
  36   * @non_seq: Flag indicating that the zone is using non-sequential resources
  37   *           (for host-aware zoned block devices only).
  38   * @reset: Flag indicating that a zone reset is recommended.
  39 - * @reserved: Padding to 64 B to match the ZBC/ZAC defined zone descriptor size.
  40 + * @resv: Padding for 8B alignment.
  41 + * @capacity: Zone usable capacity in 512 B sector units
  42 + * @reserved: Padding to 64 B to match the ZBC, ZAC and ZNS defined zone
  43 + *            descriptor size.
  44   *
  45 - * start, len and wp use the regular 512 B sector unit, regardless of the
  46 - * device logical block size. The overall structure size is 64 B to match the
  47 - * ZBC/ZAC defined zone descriptor and allow support for future additional
  48 - * zone information.
  49 + * start, len, capacity and wp use the regular 512 B sector unit, regardless
  50 + * of the device logical block size. The overall structure size is 64 B to
  51 + * match the ZBC, ZAC and ZNS defined zone descriptor and allow support for
  52 + * future additional zone information.
  53   */
  54  struct blk_zone {
  55         __u64   start;          /* Zone start sector */
  56 @@ -99,7 +111,9 @@
  57         __u8    cond;           /* Zone condition */
  58         __u8    non_seq;        /* Non-sequential write resources active */
  59         __u8    reset;          /* Reset write pointer recommended */
  60 -       __u8    reserved[36];
  61 +       __u8    resv[4];
  62 +       __u64   capacity;       /* Zone capacity in number of sectors */
  63 +       __u8    reserved[24];
  64  };
  65
  66  /**
  67 @@ -107,7 +121,7 @@
  68   *
  69   * @sector: starting sector of report
  70   * @nr_zones: IN maximum / OUT actual
  71 - * @reserved: padding to 16 byte alignment
  72 + * @flags: one or more flags as defined by enum blk_zone_report_flags.
  73   * @zones: Space to hold @nr_zones @zones entries on reply.
  74   *
  75   * The array of at most @nr_zones must follow this structure in memory.
  76 @@ -115,14 +129,16 @@
  77  struct blk_zone_report {
  78         __u64           sector;
  79         __u32           nr_zones;
  80 -       __u8            reserved[4];
  81 +       __u32           flags;
  82         struct blk_zone zones[0];
  83  };
  84
  85  /**
  86 - * struct blk_zone_range - BLKRESETZONE ioctl request
  87 - * @sector: starting sector of the first zone to issue reset write pointer
  88 - * @nr_sectors: Total number of sectors of 1 or more zones to reset
  89 + * struct blk_zone_range - BLKRESETZONE/BLKOPENZONE/
  90 + *                         BLKCLOSEZONE/BLKFINISHZONE ioctl
  91 + *                         requests
  92 + * @sector: Starting sector of the first zone to operate on.
  93 + * @nr_sectors: Total number of sectors of all zones to operate on.
  94   */
  95  struct blk_zone_range {
  96         __u64           sector;
  97 @@ -139,10 +155,19 @@
  98   *                sector range. The sector range must be zone aligned.
  99   * @BLKGETZONESZ: Get the device zone size in number of 512 B sectors.
 100   * @BLKGETNRZONES: Get the total number of zones of the device.
 101 + * @BLKOPENZONE: Open the zones in the specified sector range.
 102 + *               The 512 B sector range must be zone aligned.
 103 + * @BLKCLOSEZONE: Close the zones in the specified sector range.
 104 + *                The 512 B sector range must be zone aligned.
 105 + * @BLKFINISHZONE: Mark the zones as full in the specified sector range.
 106 + *                 The 512 B sector range must be zone aligned.
 107   */
 108  #define BLKREPORTZONE  _IOWR(0x12, 130, struct blk_zone_report)
 109  #define BLKRESETZONE   _IOW(0x12, 131, struct blk_zone_range)
 110  #define BLKGETZONESZ   _IOR(0x12, 132, __u32)
 111  #define BLKGETNRZONES  _IOR(0x12, 133, __u32)
 112 +#define BLKOPENZONE    _IOW(0x12, 134, struct blk_zone_range)
 113 +#define BLKCLOSEZONE   _IOW(0x12, 135, struct blk_zone_range)
 114 +#define BLKFINISHZONE  _IOW(0x12, 136, struct blk_zone_range)
 115
 116  #endif /* _UAPI_BLKZONED_H */