PNG
IHDR x sBIT|d pHYs + tEXtSoftware www.inkscape.org< ,tEXtComment
File Manager
File Manager
Viewing File: blkzoned.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Zoned block devices handling.
*
* Copyright (C) 2015 Seagate Technology PLC
*
* Written by: Shaun Tancheff <shaun.tancheff@seagate.com>
*
* Modified by: Damien Le Moal <damien.lemoal@hgst.com>
* Copyright (C) 2016 Western Digital
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#ifndef _BLKZONED_H
#define _BLKZONED_H
#include <linux/types.h>
#include <linux/ioctl.h>
/**
* enum blk_zone_type - Types of zones allowed in a zoned device.
*
* @BLK_ZONE_TYPE_CONVENTIONAL: The zone has no write pointer and can be writen
* randomly. Zone reset has no effect on the zone.
* @BLK_ZONE_TYPE_SEQWRITE_REQ: The zone must be written sequentially
* @BLK_ZONE_TYPE_SEQWRITE_PREF: The zone can be written non-sequentially
*
* Any other value not defined is reserved and must be considered as invalid.
*/
enum blk_zone_type {
BLK_ZONE_TYPE_CONVENTIONAL = 0x1,
BLK_ZONE_TYPE_SEQWRITE_REQ = 0x2,
BLK_ZONE_TYPE_SEQWRITE_PREF = 0x3,
};
/**
* enum blk_zone_cond - Condition [state] of a zone in a zoned device.
*
* @BLK_ZONE_COND_NOT_WP: The zone has no write pointer, it is conventional.
* @BLK_ZONE_COND_EMPTY: The zone is empty.
* @BLK_ZONE_COND_IMP_OPEN: The zone is open, but not explicitly opened.
* @BLK_ZONE_COND_EXP_OPEN: The zones was explicitly opened by an
* OPEN ZONE command.
* @BLK_ZONE_COND_CLOSED: The zone was [explicitly] closed after writing.
* @BLK_ZONE_COND_FULL: The zone is marked as full, possibly by a zone
* FINISH ZONE command.
* @BLK_ZONE_COND_READONLY: The zone is read-only.
* @BLK_ZONE_COND_OFFLINE: The zone is offline (sectors cannot be read/written).
*
* The Zone Condition state machine in the ZBC/ZAC standards maps the above
* deinitions as:
* - ZC1: Empty | BLK_ZONE_COND_EMPTY
* - ZC2: Implicit Open | BLK_ZONE_COND_IMP_OPEN
* - ZC3: Explicit Open | BLK_ZONE_COND_EXP_OPEN
* - ZC4: Closed | BLK_ZONE_COND_CLOSED
* - ZC5: Full | BLK_ZONE_COND_FULL
* - ZC6: Read Only | BLK_ZONE_COND_READONLY
* - ZC7: Offline | BLK_ZONE_COND_OFFLINE
*
* Conditions 0x5 to 0xC are reserved by the current ZBC/ZAC spec and should
* be considered invalid.
*/
enum blk_zone_cond {
BLK_ZONE_COND_NOT_WP = 0x0,
BLK_ZONE_COND_EMPTY = 0x1,
BLK_ZONE_COND_IMP_OPEN = 0x2,
BLK_ZONE_COND_EXP_OPEN = 0x3,
BLK_ZONE_COND_CLOSED = 0x4,
BLK_ZONE_COND_READONLY = 0xD,
BLK_ZONE_COND_FULL = 0xE,
BLK_ZONE_COND_OFFLINE = 0xF,
};
/**
* enum blk_zone_report_flags - Feature flags of reported zone descriptors.
*
* @BLK_ZONE_REP_CAPACITY: Zone descriptor has capacity field.
*/
enum blk_zone_report_flags {
BLK_ZONE_REP_CAPACITY = (1 << 0),
};
/**
* struct blk_zone - Zone descriptor for BLKREPORTZONE ioctl.
*
* @start: Zone start in 512 B sector units
* @len: Zone length in 512 B sector units
* @wp: Zone write pointer location in 512 B sector units
* @type: see enum blk_zone_type for possible values
* @cond: see enum blk_zone_cond for possible values
* @non_seq: Flag indicating that the zone is using non-sequential resources
* (for host-aware zoned block devices only).
* @reset: Flag indicating that a zone reset is recommended.
* @resv: Padding for 8B alignment.
* @capacity: Zone usable capacity in 512 B sector units
* @reserved: Padding to 64 B to match the ZBC, ZAC and ZNS defined zone
* descriptor size.
*
* start, len, capacity and wp use the regular 512 B sector unit, regardless
* of the device logical block size. The overall structure size is 64 B to
* match the ZBC, ZAC and ZNS defined zone descriptor and allow support for
* future additional zone information.
*/
struct blk_zone {
__u64 start; /* Zone start sector */
__u64 len; /* Zone length in number of sectors */
__u64 wp; /* Zone write pointer position */
__u8 type; /* Zone type */
__u8 cond; /* Zone condition */
__u8 non_seq; /* Non-sequential write resources active */
__u8 reset; /* Reset write pointer recommended */
__u8 resv[4];
__u64 capacity; /* Zone capacity in number of sectors */
__u8 reserved[24];
};
/**
* struct blk_zone_report - BLKREPORTZONE ioctl request/reply
*
* @sector: starting sector of report
* @nr_zones: IN maximum / OUT actual
* @flags: one or more flags as defined by enum blk_zone_report_flags.
* @zones: Space to hold @nr_zones @zones entries on reply.
*
* The array of at most @nr_zones must follow this structure in memory.
*/
struct blk_zone_report {
__u64 sector;
__u32 nr_zones;
__u32 flags;
struct blk_zone zones[0];
};
/**
* struct blk_zone_range - BLKRESETZONE/BLKOPENZONE/
* BLKCLOSEZONE/BLKFINISHZONE ioctl
* requests
* @sector: Starting sector of the first zone to operate on.
* @nr_sectors: Total number of sectors of all zones to operate on.
*/
struct blk_zone_range {
__u64 sector;
__u64 nr_sectors;
};
/**
* Zoned block device ioctl's:
*
* @BLKREPORTZONE: Get zone information. Takes a zone report as argument.
* The zone report will start from the zone containing the
* sector specified in the report request structure.
* @BLKRESETZONE: Reset the write pointer of the zones in the specified
* sector range. The sector range must be zone aligned.
* @BLKGETZONESZ: Get the device zone size in number of 512 B sectors.
* @BLKGETNRZONES: Get the total number of zones of the device.
* @BLKOPENZONE: Open the zones in the specified sector range.
* The 512 B sector range must be zone aligned.
* @BLKCLOSEZONE: Close the zones in the specified sector range.
* The 512 B sector range must be zone aligned.
* @BLKFINISHZONE: Mark the zones as full in the specified sector range.
* The 512 B sector range must be zone aligned.
*/
#define BLKREPORTZONE _IOWR(0x12, 130, struct blk_zone_report)
#define BLKRESETZONE _IOW(0x12, 131, struct blk_zone_range)
#define BLKGETZONESZ _IOR(0x12, 132, __u32)
#define BLKGETNRZONES _IOR(0x12, 133, __u32)
#define BLKOPENZONE _IOW(0x12, 134, struct blk_zone_range)
#define BLKCLOSEZONE _IOW(0x12, 135, struct blk_zone_range)
#define BLKFINISHZONE _IOW(0x12, 136, struct blk_zone_range)
#endif /* _BLKZONED_H */
b IDATxytVսϓ22 A@IR :hCiZ[v*E:WũZA ^dQeQ @ !jZ'>gsV仿$|?g)&x-E IENT ; @x T.i%-X} SvS5.r/ UHz^_$-W" w)Ɗ/ @Z &IoX P$K} JzX:;` &, ŋui,e6mX
Եr Kb1ԗ) D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A D A ݀!I*]R;I2$eZ#ORZSrr 6mteffu*((Pu'v{ DIߔ4^pIm '77WEEE;vƎ 4- $]'RI{\I&G :IHJ
DWBB=\WRm
o$K(V 9 ABB.}jѢv `^?IOȅ} ڶmG }T#FJ`5 6$- ھ}FI&v;0(h; Б 38CӧOWf!; A
i:F _m9s&|q%=# wZprrrla
A & P\\СC[A#! { olF}
`E2} MK/vV )i{ 4BffV\|ۭX `b@kɶ@%i$K z5zhmX [IXZ ` 'b%$r5 M4º /l
ԃ ߖ xhʔ)[@=}
K6IM}^ 5k㏷݆z
ΗÿO:gdGBmyT/@+Vɶ纽zl.yit뭷zV 0[Y^>Wsqs}\/@$(T7f.Inݺi R$푔n.~?H))\Z RW'Mo~v
Ov6oԃ xz! S,&xm/yɞԟ?'uaSѽb, 8GלKboi&3 t7Y,)JJ c[nzӳdE&KsZLӄ I ?@ & %ӟ۶mSMMњ0 iؐSZ, |J+N
~,0A 0!5%Q-YQQa 3 }$_vVr f9f?S 8` z D A D A D A D A D A D A D A D A D A dqP,تmMmg 1V?rSI꒟]u|l
RCyEf٢9 jURbztѰ!m5~tGj2DhG*{H9)꒟ר3:(+3\?/;TUݭʴ~S6lڧUJ*i$d(#=Yݺd{,p|3B)) q:vN0Y.jkק6;SɶVzHJJЀ-utѹսk>QUU \~]fFnK?&ߡ5b=z9)^|u_k-[ y%ZNU6 7Mi:]ۦ tk[n
X(e6 Bb."8cۭ|~teuuw|ήI-5"~Uk;ZicEmN/:]M>
cQ^uiƞ??Ң pc# TUU3UakNwA`:Y_V-8.KKfRi tv*
9S6ֿj,ՃNOMߤ]z^fOh|<>@Å5 _/Iu?{SY4hK/2]4%it5q]GGe2%iR|
W&f*^]??vq[LgE_3f}Fxu~}qd-ږFxu~I N >\;͗O֊:̗WJ@ Bh W=y|GgwܷH_NY?)Tdi'?խwhlmQi !SUUsw4kӺe4rfxu-[nHtMFj}H_u~w>)oV}(T'ebʒv3_[+vn @Ȭ\S}ot}w=k HFnxg S 0eޢm~l}uqZfF oZuuEg
`zt~? b;t%>WTkķh[ 2eG8LIWx,^\thrl^Ϊ{=dž<}qV@ ⠨Wy^LF_>0UkD uʫuCs$)I v:IK; 6ֲ4{^6 եm+l 3>݆uM 9u ?>Zc }g~qhKwڭ e FMM~pМuqǿz6Tb@8 @Y|jx](^]gf}M"tG
-w.@ vOqh~/HII` S[l.6nØXL9vU cOoB\xoǤ'T&I ǍQw_wpv[kmO{w~>#=P1Pɞa-we:iǏlHo꒟f9SzH?+shk%Fs:q VhqY `jvO'ρ?PyX3lх]˾uV{ݞ]1,MzYNW~̈́ joYn}ȚF߾mS]F z+EDxm/d{F{-W-4wY듏:??_gPf
^3ecg ҵs8R2מz@TA NGj)}CNi/R~}c:5{! ZHӋӾ6}T] G]7W6^n
9*,YqOZj :P?Q D FL|?-^.Ɵ7}fFhxe2Ps cz1&5\cn[=Vn[ĶE鎀uˌd3GII k;lNmشOuuRVfBE]ۣe Ӷu
:X-[(er4~LHi6:Ѻ@ԅr ST0 trk%$Č0 ez" *z " T/X9|8.C5Feg} C Q%͞ˣJvL/? j^ h & 9xF`њZ( & yF&Iݻfg #W;3^{Wo^4'v V[[K';+mӍִ] AC @ W?1^{එyh +^]fm~iԵ] AB @WTk̏t uR?l.OIHiYyԶ] Aˀ 7c:q}ힽaf6Z~қm(+sK4{^6}T *UUu]n.:kx{:2 _m=sAߤU@? Z-Vކе z왍Nэ{|5 pڶn b
p-@sPg]0G7fy-M{GCF'%{4` =$-Ge\ eU:m+Zt'WjO!OAF @ik&t݆ϥ_
e}=]" Wz_.͜E3leW Fih|t-wZۍ-uw=6 YN {6|} | *={Ѽn.S .z1z jۻTH]흾 D uDvmvK .` V]yY~sI@t?/ϓ. m&[ " +P?MzovVЫG3- G RR[(!!\_,^%?v@ ҵő
m`Y)tem8GM x.))A]Y i`ViW`?^~! S#^+ѽGZj?Vģ 0.))AlzL*]OXrY `DBBLOj{-MH'ii-ϰ ok7^
)쭡b]UXSְmռY|5 *cֽk0B7镹%ڽP# 8nȎq}mJr23_>lE5$iwui+ H~F`IjƵ@q
\ @#qG 0" . 0" l ` . 0! , AQHN6qzkKJ#o;`Xv2>,tێJJ7Z/*A .@fفjMzkg @TvZH3Zxu6Ra'%O?/d Q5x YkU]Rֽkق@ DaS^RSּ5|BeHNN͘p
HvcYcC5:y
#`οb; z2 .!kr}gUWkyZn=f Pvsn3p~;4p˚=ē~NmI] ¾ 0lH[_L hs h_ ғߤc_њe c) g 7VIZ5 yrgk̞W#IjӪv>՞y睝M8[ |]\շ 8M 6%|@P ZڨI-m>=k= 'aiRo-x?>Q. }`Ȏ:Wsmu u >
.@,&;+!!˱tﭧD QwRW\vF\~Q7>sp Yw$%A~;~}6 ¾ g &if_=j,v+U L1(tW ake:@Ș>j$Gq2t7S?vL|]u/ .(0 E 6Mk6hiۺzښOrifޱxm/Gx> Lal%%~{lBsR4* }{0Z/ tNIɚpV ^# Lf:u@k#RSu
=S^ZyuR/.@n&z~B=0eg뺆#,Þ[ B/?H uUf7y
Wy}Bwegל`Wh(||`l`.;Ws?V@" c:iɍL֯PGv6zctM̠':wuW;d=;EveD}9J@ B(0iհ bvP1{\P&G7DIy_$-Q jm~Yrr&]CDv%bh|Yzni _ R ;kg}nJOIIwy uL}{ЌNj}:+3Y?:WJ/N+Rzd=hb;dj͒suݔ@NKMԄ jqzC5 @y°hL m;*5ezᕏ=ep
XL n?מ:r`۵tŤZ|1v`V뽧_csج'ߤ%oTuumk%%%h)uy]Nk[n
'b2 l.=͜E%gf$[c;s:V-͞WߤWh-j7]4=F-X]>ZLSi[Y*We; Zan(Ӈ W|e(HNNP5[=
r4tP
&0< pc# `vTNV
GFqvTi * Tyam$ߏWyE* VJKMTfFw >'$-ؽ.Ho.8c"@ D A D A D A D A D A D A D A D A D A~j*֘, N;Pi3599h=g oض L giJ5փy~}&Zd9 p֚
e:|hL``b/d9 p? fgg+%%hMg Xosج, ΩOl0Zh=x djL mhݻo O [g_l, 8a]٭+ӧ0 $I] c]:粹:Teꢢ"5a^Kgh,&= =՟ ^߶ߢE ܹS J}I%:8
IDAT~,9/ʃ PW'Mo }zNƍ쨓zPb NZ~^z=4mswg;5 Y~SVMR XUյڱRf?s:w
; 6H:º i 5 -maM &O3; 1IKeam Zh͛7+##v+c ~u~ca] GnF'ټL~ PPPbn
v oC 4R,ӟgg %hq} @#M4IÇ Oy^xM Zx
) yO w @HkN˖-Sǎ mb]X@n+i͖ !++K3gd\$mt$^ YfJ \8PRF )77Wא!Cl $i: @@_oG I{$# 8磌ŋ9 1A (Im7 ֭>}ߴJq7ޗt^ -[ԩSj*}%]&'
- ɓ'ꫯVzzvB#; a
7@GxI{jƌ.LÇWBB7 `O"I$ /@R @ eee@۷ >}0 ,ɒ2$53Xs|cS~r pTYYY} k Hc %&k.], @ A D A D A D A D A D A D A D A D A @lT<%''*Lo^={رc5h %$+CnܸQ3fҥK}vUVVs9G
R,_{ xˇ3 o߾;TTTd}馛]uuuG~iԩ@4 bnvmvfϞ /Peeeq}}z a
I~,誫{UWW뮻}_~YƍSMMMYχ ֝waw \ ď cxꩧtEƍկ_?۷5@u ?1kNׯWzz/wy>}zj3 k (ٺu q_Zvf̘:~ AB Q&r| ! %KҥKg Ԟ={<_X-z ! CyFUUz~ AB QIIIjݺW $ UXXDٳZ~ AB QƍecW $<(~<RSSvZujjjԧO ZQu@4 8m&&&jԩg $ ď 1h ͟?_{768@ g
=@ `)))5o6m 3 ) ѣƌJ;wҿUTT /KZR{~a=@ 0o<*狔iFɶ[ˎ ;T]] OX@ ?K.ۈxN p p p p p p p p p p p p p p p p pP fl߾] ,{ｧk۶mڿo5 BTӦMӴiӴ|r D B2e |An!D y'tkΝ[A $***t5'
" !駟oaD nΝ:t֭[gD ШQ0 6qD;@ x M6v( PiizmZ 4ew" @ ̴ixf [~-F ٱc&IZ 2|n!?$ @{[HTɏ #@h Ȏ I# _m (F /6Z3 z'\r, r!;w2Z3j=~G Y 7"I$i I. p_" ? p N` y D D ?: _ G ÿa b7 J ! Bx @0 Bo
cG @`1C [ @0G
@`0C _ u V1 aC X > W ` | `! < S `" <. `# c `? cA C 4
? c p# ~ @0 ?: 0 8& _ M Q1 J h# ? /` 7; I q 7 a w Q A 1 H p
! #< 8/# @1Ul7 =S=K.4Z?E _$i@ ! 1!E 4? ` P_ @B ă 1 0# : " aU,xb F Y1
[n |n
#' v EH:`x b
# v D 4 Y hi.i& EΖv# O H 4IŶ}:Ik h @tZRF # (tXҙzZ ? I3l7 q@õ|ۍ 1,GpuY Ꮿ@ hJv# x xk$
v# 9 5 }_$ c S#=+"K {F*m7`# %H:NRS p6I?sIՖ{Ap$I$I:QRv2$Z @UJ*$]<FO4 IENDB`