12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943194419451946194719481949195019511952195319541955195619571958195919601961196219631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027202820292030203120322033203420352036203720382039204020412042204320442045204620472048204920502051205220532054205520562057205820592060206120622063206420652066206720682069207020712072207320742075207620772078207920802081208220832084208520862087208820892090209120922093209420952096209720982099210021012102210321042105210621072108210921102111211221132114211521162117211821192120212121222123212421252126212721282129213021312132213321342135213621372138213921402141214221432144214521462147214821492150215121522153215421552156215721582159216021612162216321642165216621672168216921702171217221732174217521762177217821792180218121822183218421852186218721882189219021912192219321942195219621972198219922002201220222032204220522062207220822092210221122122213221422152216221722182219222022212222222322242225222622272228222922302231223222332234223522362237223822392240224122422243224422452246224722482249225022512252225322542255225622572258225922602261226222632264226522662267226822692270227122722273227422752276227722782279228022812282228322842285228622872288228922902291229222932294229522962297229822992300230123022303230423052306230723082309231023112312231323142315231623172318231923202321232223232324232523262327232823292330233123322333233423352336233723382339234023412342234323442345234623472348234923502351235223532354235523562357235823592360236123622363236423652366236723682369237023712372237323742375237623772378237923802381238223832384238523862387238823892390239123922393239423952396239723982399240024012402240324042405240624072408240924102411241224132414241524162417241824192420242124222423242424252426242724282429243024312432243324342435243624372438243924402441244224432444244524462447244824492450245124522453245424552456245724582459246024612462246324642465246624672468246924702471247224732474247524762477247824792480248124822483248424852486248724882489249024912492249324942495249624972498249925002501250225032504250525062507250825092510251125122513251425152516251725182519252025212522252325242525252625272528252925302531253225332534253525362537253825392540254125422543254425452546254725482549255025512552255325542555255625572558255925602561256225632564256525662567256825692570257125722573257425752576257725782579258025812582258325842585258625872588258925902591259225932594259525962597259825992600260126022603260426052606260726082609261026112612261326142615261626172618261926202621262226232624262526262627262826292630263126322633263426352636263726382639264026412642264326442645264626472648264926502651265226532654265526562657265826592660266126622663266426652666266726682669267026712672267326742675267626772678267926802681268226832684268526862687268826892690269126922693269426952696269726982699270027012702270327042705270627072708270927102711271227132714271527162717271827192720272127222723272427252726272727282729273027312732273327342735273627372738273927402741274227432744274527462747274827492750275127522753275427552756275727582759276027612762276327642765276627672768276927702771277227732774277527762777277827792780278127822783278427852786278727882789279027912792279327942795279627972798279928002801280228032804280528062807280828092810281128122813281428152816281728182819282028212822282328242825282628272828282928302831283228332834283528362837283828392840284128422843284428452846284728482849285028512852285328542855285628572858285928602861286228632864286528662867286828692870287128722873287428752876287728782879288028812882288328842885288628872888288928902891289228932894289528962897289828992900290129022903290429052906290729082909291029112912291329142915291629172918291929202921292229232924292529262927292829292930293129322933293429352936293729382939294029412942294329442945294629472948294929502951295229532954295529562957295829592960296129622963296429652966296729682969297029712972297329742975297629772978297929802981298229832984298529862987298829892990299129922993299429952996299729982999300030013002300330043005300630073008300930103011301230133014301530163017301830193020302130223023302430253026302730283029303030313032303330343035303630373038303930403041304230433044304530463047304830493050305130523053305430553056305730583059306030613062306330643065306630673068306930703071307230733074307530763077307830793080308130823083308430853086308730883089309030913092309330943095309630973098309931003101310231033104310531063107310831093110311131123113311431153116311731183119312031213122312331243125312631273128312931303131313231333134313531363137313831393140314131423143314431453146314731483149315031513152315331543155315631573158315931603161316231633164316531663167316831693170317131723173317431753176317731783179318031813182318331843185318631873188318931903191319231933194319531963197319831993200320132023203320432053206320732083209321032113212321332143215321632173218321932203221322232233224322532263227322832293230323132323233323432353236323732383239324032413242324332443245324632473248324932503251325232533254325532563257325832593260326132623263326432653266326732683269327032713272327332743275327632773278327932803281328232833284328532863287328832893290329132923293329432953296329732983299330033013302330333043305330633073308330933103311331233133314331533163317331833193320332133223323332433253326332733283329333033313332333333343335333633373338333933403341334233433344334533463347334833493350335133523353335433553356335733583359336033613362336333643365336633673368336933703371337233733374337533763377337833793380338133823383338433853386338733883389339033913392339333943395339633973398339934003401340234033404340534063407340834093410341134123413341434153416341734183419342034213422342334243425342634273428342934303431343234333434343534363437343834393440344134423443344434453446344734483449345034513452345334543455345634573458345934603461346234633464346534663467346834693470347134723473347434753476347734783479348034813482348334843485348634873488348934903491349234933494349534963497349834993500350135023503350435053506350735083509351035113512351335143515351635173518351935203521352235233524352535263527352835293530353135323533353435353536353735383539354035413542354335443545354635473548354935503551355235533554355535563557355835593560356135623563356435653566356735683569357035713572357335743575357635773578357935803581358235833584358535863587358835893590359135923593359435953596359735983599360036013602360336043605360636073608360936103611361236133614361536163617361836193620362136223623362436253626362736283629363036313632363336343635363636373638363936403641364236433644364536463647364836493650365136523653365436553656365736583659366036613662366336643665366636673668366936703671367236733674367536763677367836793680368136823683368436853686368736883689369036913692369336943695369636973698369937003701370237033704370537063707370837093710371137123713371437153716371737183719372037213722372337243725372637273728372937303731373237333734373537363737373837393740374137423743374437453746374737483749375037513752375337543755375637573758375937603761376237633764376537663767376837693770377137723773377437753776377737783779378037813782378337843785378637873788378937903791379237933794379537963797379837993800380138023803380438053806380738083809381038113812381338143815381638173818381938203821382238233824382538263827382838293830383138323833383438353836383738383839384038413842384338443845384638473848384938503851385238533854385538563857385838593860386138623863386438653866386738683869387038713872387338743875387638773878387938803881388238833884388538863887388838893890389138923893389438953896389738983899390039013902390339043905390639073908390939103911391239133914391539163917391839193920392139223923392439253926392739283929393039313932393339343935393639373938393939403941394239433944394539463947394839493950395139523953395439553956395739583959396039613962396339643965396639673968396939703971397239733974397539763977397839793980398139823983398439853986398739883989399039913992399339943995399639973998399940004001400240034004400540064007400840094010401140124013401440154016401740184019402040214022402340244025402640274028402940304031403240334034403540364037403840394040404140424043404440454046404740484049405040514052405340544055405640574058405940604061406240634064406540664067406840694070407140724073407440754076407740784079408040814082408340844085408640874088408940904091409240934094409540964097409840994100410141024103410441054106410741084109411041114112411341144115411641174118411941204121412241234124412541264127412841294130413141324133413441354136413741384139414041414142414341444145414641474148414941504151415241534154415541564157415841594160416141624163416441654166416741684169417041714172417341744175417641774178417941804181418241834184418541864187418841894190419141924193419441954196419741984199420042014202420342044205420642074208420942104211421242134214421542164217421842194220422142224223422442254226422742284229423042314232423342344235423642374238423942404241424242434244424542464247424842494250425142524253425442554256425742584259426042614262426342644265426642674268426942704271427242734274427542764277427842794280428142824283428442854286428742884289429042914292429342944295429642974298429943004301430243034304430543064307430843094310431143124313431443154316431743184319432043214322432343244325432643274328432943304331433243334334433543364337433843394340434143424343434443454346434743484349435043514352435343544355435643574358435943604361436243634364436543664367436843694370437143724373437443754376437743784379438043814382438343844385438643874388438943904391439243934394439543964397439843994400440144024403440444054406440744084409441044114412441344144415441644174418441944204421442244234424442544264427442844294430443144324433443444354436443744384439444044414442444344444445444644474448444944504451445244534454445544564457445844594460446144624463446444654466446744684469447044714472447344744475447644774478447944804481448244834484448544864487448844894490449144924493449444954496449744984499450045014502450345044505450645074508450945104511451245134514451545164517451845194520452145224523452445254526452745284529453045314532453345344535453645374538453945404541454245434544454545464547454845494550455145524553455445554556455745584559456045614562456345644565456645674568456945704571457245734574457545764577457845794580458145824583458445854586458745884589459045914592459345944595459645974598459946004601460246034604460546064607460846094610461146124613461446154616461746184619462046214622462346244625462646274628462946304631463246334634463546364637463846394640464146424643464446454646464746484649465046514652465346544655465646574658465946604661466246634664466546664667466846694670467146724673467446754676467746784679468046814682468346844685468646874688468946904691469246934694469546964697469846994700470147024703470447054706470747084709471047114712471347144715471647174718471947204721472247234724472547264727472847294730473147324733473447354736473747384739474047414742474347444745474647474748474947504751475247534754475547564757475847594760476147624763476447654766476747684769477047714772477347744775477647774778477947804781478247834784478547864787478847894790479147924793479447954796479747984799480048014802480348044805480648074808480948104811481248134814481548164817481848194820482148224823482448254826482748284829483048314832483348344835483648374838483948404841484248434844484548464847484848494850485148524853485448554856485748584859486048614862486348644865486648674868486948704871487248734874487548764877487848794880488148824883488448854886488748884889489048914892489348944895489648974898489949004901490249034904490549064907490849094910491149124913491449154916491749184919492049214922492349244925492649274928492949304931493249334934493549364937493849394940494149424943494449454946494749484949495049514952495349544955495649574958495949604961496249634964496549664967496849694970497149724973497449754976497749784979498049814982498349844985498649874988498949904991499249934994499549964997499849995000500150025003500450055006500750085009501050115012501350145015501650175018501950205021502250235024502550265027502850295030503150325033503450355036503750385039504050415042504350445045504650475048504950505051505250535054505550565057505850595060506150625063506450655066506750685069507050715072507350745075507650775078507950805081508250835084508550865087508850895090509150925093509450955096509750985099510051015102510351045105510651075108510951105111511251135114511551165117511851195120512151225123512451255126512751285129513051315132513351345135513651375138513951405141514251435144514551465147514851495150515151525153515451555156515751585159516051615162516351645165516651675168516951705171517251735174517551765177517851795180518151825183518451855186518751885189519051915192519351945195519651975198519952005201520252035204520552065207520852095210521152125213521452155216521752185219522052215222522352245225522652275228522952305231523252335234523552365237523852395240524152425243524452455246524752485249525052515252525352545255525652575258525952605261526252635264526552665267526852695270527152725273527452755276527752785279528052815282528352845285528652875288528952905291529252935294529552965297529852995300530153025303530453055306530753085309531053115312531353145315531653175318531953205321532253235324532553265327532853295330533153325333533453355336533753385339534053415342534353445345534653475348534953505351535253535354535553565357535853595360536153625363536453655366536753685369537053715372537353745375537653775378537953805381538253835384538553865387538853895390 |
- /*******************************************************************
- * This file is part of the Emulex Linux Device Driver for *
- * Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2009-2015 Emulex. All rights reserved. *
- * EMULEX and SLI are trademarks of Emulex. *
- * www.emulex.com *
- * *
- * This program is free software; you can redistribute it and/or *
- * modify it under the terms of version 2 of the GNU General *
- * Public License as published by the Free Software Foundation. *
- * This program is distributed in the hope that it will be useful. *
- * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
- * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
- * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
- * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
- * TO BE LEGALLY INVALID. See the GNU General Public License for *
- * more details, a copy of which can be found in the file COPYING *
- * included with this package. *
- *******************************************************************/
- #include <linux/interrupt.h>
- #include <linux/mempool.h>
- #include <linux/pci.h>
- #include <linux/slab.h>
- #include <linux/delay.h>
- #include <linux/list.h>
- #include <scsi/scsi.h>
- #include <scsi/scsi_host.h>
- #include <scsi/scsi_transport_fc.h>
- #include <scsi/scsi_bsg_fc.h>
- #include <scsi/fc/fc_fs.h>
- #include "lpfc_hw4.h"
- #include "lpfc_hw.h"
- #include "lpfc_sli.h"
- #include "lpfc_sli4.h"
- #include "lpfc_nl.h"
- #include "lpfc_bsg.h"
- #include "lpfc_disc.h"
- #include "lpfc_scsi.h"
- #include "lpfc.h"
- #include "lpfc_logmsg.h"
- #include "lpfc_crtn.h"
- #include "lpfc_debugfs.h"
- #include "lpfc_vport.h"
- #include "lpfc_version.h"
- struct lpfc_bsg_event {
- struct list_head node;
- struct kref kref;
- wait_queue_head_t wq;
- /* Event type and waiter identifiers */
- uint32_t type_mask;
- uint32_t req_id;
- uint32_t reg_id;
- /* next two flags are here for the auto-delete logic */
- unsigned long wait_time_stamp;
- int waiting;
- /* seen and not seen events */
- struct list_head events_to_get;
- struct list_head events_to_see;
- /* driver data associated with the job */
- void *dd_data;
- };
- struct lpfc_bsg_iocb {
- struct lpfc_iocbq *cmdiocbq;
- struct lpfc_dmabuf *rmp;
- struct lpfc_nodelist *ndlp;
- };
- struct lpfc_bsg_mbox {
- LPFC_MBOXQ_t *pmboxq;
- MAILBOX_t *mb;
- struct lpfc_dmabuf *dmabuffers; /* for BIU diags */
- uint8_t *ext; /* extended mailbox data */
- uint32_t mbOffset; /* from app */
- uint32_t inExtWLen; /* from app */
- uint32_t outExtWLen; /* from app */
- };
- #define MENLO_DID 0x0000FC0E
- struct lpfc_bsg_menlo {
- struct lpfc_iocbq *cmdiocbq;
- struct lpfc_dmabuf *rmp;
- };
- #define TYPE_EVT 1
- #define TYPE_IOCB 2
- #define TYPE_MBOX 3
- #define TYPE_MENLO 4
- struct bsg_job_data {
- uint32_t type;
- struct fc_bsg_job *set_job; /* job waiting for this iocb to finish */
- union {
- struct lpfc_bsg_event *evt;
- struct lpfc_bsg_iocb iocb;
- struct lpfc_bsg_mbox mbox;
- struct lpfc_bsg_menlo menlo;
- } context_un;
- };
- struct event_data {
- struct list_head node;
- uint32_t type;
- uint32_t immed_dat;
- void *data;
- uint32_t len;
- };
- #define BUF_SZ_4K 4096
- #define SLI_CT_ELX_LOOPBACK 0x10
- enum ELX_LOOPBACK_CMD {
- ELX_LOOPBACK_XRI_SETUP,
- ELX_LOOPBACK_DATA,
- };
- #define ELX_LOOPBACK_HEADER_SZ \
- (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
- struct lpfc_dmabufext {
- struct lpfc_dmabuf dma;
- uint32_t size;
- uint32_t flag;
- };
- static void
- lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
- {
- struct lpfc_dmabuf *mlast, *next_mlast;
- if (mlist) {
- list_for_each_entry_safe(mlast, next_mlast, &mlist->list,
- list) {
- lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
- list_del(&mlast->list);
- kfree(mlast);
- }
- lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
- kfree(mlist);
- }
- return;
- }
- static struct lpfc_dmabuf *
- lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size,
- int outbound_buffers, struct ulp_bde64 *bpl,
- int *bpl_entries)
- {
- struct lpfc_dmabuf *mlist = NULL;
- struct lpfc_dmabuf *mp;
- unsigned int bytes_left = size;
- /* Verify we can support the size specified */
- if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE)))
- return NULL;
- /* Determine the number of dma buffers to allocate */
- *bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 :
- size/LPFC_BPL_SIZE);
- /* Allocate dma buffer and place in BPL passed */
- while (bytes_left) {
- /* Allocate dma buffer */
- mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (!mp) {
- if (mlist)
- lpfc_free_bsg_buffers(phba, mlist);
- return NULL;
- }
- INIT_LIST_HEAD(&mp->list);
- mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
- if (!mp->virt) {
- kfree(mp);
- if (mlist)
- lpfc_free_bsg_buffers(phba, mlist);
- return NULL;
- }
- /* Queue it to a linked list */
- if (!mlist)
- mlist = mp;
- else
- list_add_tail(&mp->list, &mlist->list);
- /* Add buffer to buffer pointer list */
- if (outbound_buffers)
- bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
- else
- bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
- bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
- bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
- bpl->tus.f.bdeSize = (uint16_t)
- (bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE :
- bytes_left);
- bytes_left -= bpl->tus.f.bdeSize;
- bpl->tus.w = le32_to_cpu(bpl->tus.w);
- bpl++;
- }
- return mlist;
- }
- static unsigned int
- lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers,
- struct fc_bsg_buffer *bsg_buffers,
- unsigned int bytes_to_transfer, int to_buffers)
- {
- struct lpfc_dmabuf *mp;
- unsigned int transfer_bytes, bytes_copied = 0;
- unsigned int sg_offset, dma_offset;
- unsigned char *dma_address, *sg_address;
- LIST_HEAD(temp_list);
- struct sg_mapping_iter miter;
- unsigned long flags;
- unsigned int sg_flags = SG_MITER_ATOMIC;
- bool sg_valid;
- list_splice_init(&dma_buffers->list, &temp_list);
- list_add(&dma_buffers->list, &temp_list);
- sg_offset = 0;
- if (to_buffers)
- sg_flags |= SG_MITER_FROM_SG;
- else
- sg_flags |= SG_MITER_TO_SG;
- sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt,
- sg_flags);
- local_irq_save(flags);
- sg_valid = sg_miter_next(&miter);
- list_for_each_entry(mp, &temp_list, list) {
- dma_offset = 0;
- while (bytes_to_transfer && sg_valid &&
- (dma_offset < LPFC_BPL_SIZE)) {
- dma_address = mp->virt + dma_offset;
- if (sg_offset) {
- /* Continue previous partial transfer of sg */
- sg_address = miter.addr + sg_offset;
- transfer_bytes = miter.length - sg_offset;
- } else {
- sg_address = miter.addr;
- transfer_bytes = miter.length;
- }
- if (bytes_to_transfer < transfer_bytes)
- transfer_bytes = bytes_to_transfer;
- if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset))
- transfer_bytes = LPFC_BPL_SIZE - dma_offset;
- if (to_buffers)
- memcpy(dma_address, sg_address, transfer_bytes);
- else
- memcpy(sg_address, dma_address, transfer_bytes);
- dma_offset += transfer_bytes;
- sg_offset += transfer_bytes;
- bytes_to_transfer -= transfer_bytes;
- bytes_copied += transfer_bytes;
- if (sg_offset >= miter.length) {
- sg_offset = 0;
- sg_valid = sg_miter_next(&miter);
- }
- }
- }
- sg_miter_stop(&miter);
- local_irq_restore(flags);
- list_del_init(&dma_buffers->list);
- list_splice(&temp_list, &dma_buffers->list);
- return bytes_copied;
- }
- /**
- * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
- * @phba: Pointer to HBA context object.
- * @cmdiocbq: Pointer to command iocb.
- * @rspiocbq: Pointer to response iocb.
- *
- * This function is the completion handler for iocbs issued using
- * lpfc_bsg_send_mgmt_cmd function. This function is called by the
- * ring event handler function without any lock held. This function
- * can be called from both worker thread context and interrupt
- * context. This function also can be called from another thread which
- * cleans up the SLI layer objects.
- * This function copies the contents of the response iocb to the
- * response iocb memory object provided by the caller of
- * lpfc_sli_issue_iocb_wait and then wakes up the thread which
- * sleeps for the iocb completion.
- **/
- static void
- lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
- struct lpfc_iocbq *cmdiocbq,
- struct lpfc_iocbq *rspiocbq)
- {
- struct bsg_job_data *dd_data;
- struct fc_bsg_job *job;
- IOCB_t *rsp;
- struct lpfc_dmabuf *bmp, *cmp, *rmp;
- struct lpfc_nodelist *ndlp;
- struct lpfc_bsg_iocb *iocb;
- unsigned long flags;
- unsigned int rsp_size;
- int rc = 0;
- dd_data = cmdiocbq->context1;
- /* Determine if job has been aborted */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- job = dd_data->set_job;
- if (job) {
- /* Prevent timeout handling from trying to abort job */
- job->dd_data = NULL;
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /* Close the timeout handler abort window */
- spin_lock_irqsave(&phba->hbalock, flags);
- cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
- spin_unlock_irqrestore(&phba->hbalock, flags);
- iocb = &dd_data->context_un.iocb;
- ndlp = iocb->ndlp;
- rmp = iocb->rmp;
- cmp = cmdiocbq->context2;
- bmp = cmdiocbq->context3;
- rsp = &rspiocbq->iocb;
- /* Copy the completed data or set the error status */
- if (job) {
- if (rsp->ulpStatus) {
- if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
- switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
- case IOERR_SEQUENCE_TIMEOUT:
- rc = -ETIMEDOUT;
- break;
- case IOERR_INVALID_RPI:
- rc = -EFAULT;
- break;
- default:
- rc = -EACCES;
- break;
- }
- } else {
- rc = -EACCES;
- }
- } else {
- rsp_size = rsp->un.genreq64.bdl.bdeSize;
- job->reply->reply_payload_rcv_len =
- lpfc_bsg_copy_data(rmp, &job->reply_payload,
- rsp_size, 0);
- }
- }
- lpfc_free_bsg_buffers(phba, cmp);
- lpfc_free_bsg_buffers(phba, rmp);
- lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
- kfree(bmp);
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- lpfc_nlp_put(ndlp);
- kfree(dd_data);
- /* Complete the job if the job is still active */
- if (job) {
- job->reply->result = rc;
- job->job_done(job);
- }
- return;
- }
- /**
- * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
- * @job: fc_bsg_job to handle
- **/
- static int
- lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct lpfc_rport_data *rdata = job->rport->dd_data;
- struct lpfc_nodelist *ndlp = rdata->pnode;
- struct ulp_bde64 *bpl = NULL;
- uint32_t timeout;
- struct lpfc_iocbq *cmdiocbq = NULL;
- IOCB_t *cmd;
- struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
- int request_nseg;
- int reply_nseg;
- struct bsg_job_data *dd_data;
- unsigned long flags;
- uint32_t creg_val;
- int rc = 0;
- int iocb_stat;
- /* in case no data is transferred */
- job->reply->reply_payload_rcv_len = 0;
- /* allocate our bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2733 Failed allocation of dd_data\n");
- rc = -ENOMEM;
- goto no_dd_data;
- }
- if (!lpfc_nlp_get(ndlp)) {
- rc = -ENODEV;
- goto no_ndlp;
- }
- if (ndlp->nlp_flag & NLP_ELS_SND_MASK) {
- rc = -ENODEV;
- goto free_ndlp;
- }
- cmdiocbq = lpfc_sli_get_iocbq(phba);
- if (!cmdiocbq) {
- rc = -ENOMEM;
- goto free_ndlp;
- }
- cmd = &cmdiocbq->iocb;
- bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (!bmp) {
- rc = -ENOMEM;
- goto free_cmdiocbq;
- }
- bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
- if (!bmp->virt) {
- rc = -ENOMEM;
- goto free_bmp;
- }
- INIT_LIST_HEAD(&bmp->list);
- bpl = (struct ulp_bde64 *) bmp->virt;
- request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
- cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
- 1, bpl, &request_nseg);
- if (!cmp) {
- rc = -ENOMEM;
- goto free_bmp;
- }
- lpfc_bsg_copy_data(cmp, &job->request_payload,
- job->request_payload.payload_len, 1);
- bpl += request_nseg;
- reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
- rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
- bpl, &reply_nseg);
- if (!rmp) {
- rc = -ENOMEM;
- goto free_cmp;
- }
- cmd->un.genreq64.bdl.ulpIoTag32 = 0;
- cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
- cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
- cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
- cmd->un.genreq64.bdl.bdeSize =
- (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
- cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
- cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
- cmd->un.genreq64.w5.hcsw.Dfctl = 0;
- cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
- cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
- cmd->ulpBdeCount = 1;
- cmd->ulpLe = 1;
- cmd->ulpClass = CLASS3;
- cmd->ulpContext = ndlp->nlp_rpi;
- if (phba->sli_rev == LPFC_SLI_REV4)
- cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
- cmd->ulpOwner = OWN_CHIP;
- cmdiocbq->vport = phba->pport;
- cmdiocbq->context3 = bmp;
- cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
- timeout = phba->fc_ratov * 2;
- cmd->ulpTimeout = timeout;
- cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
- cmdiocbq->context1 = dd_data;
- cmdiocbq->context2 = cmp;
- cmdiocbq->context3 = bmp;
- cmdiocbq->context_un.ndlp = ndlp;
- dd_data->type = TYPE_IOCB;
- dd_data->set_job = job;
- dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
- dd_data->context_un.iocb.ndlp = ndlp;
- dd_data->context_un.iocb.rmp = rmp;
- job->dd_data = dd_data;
- if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
- if (lpfc_readl(phba->HCregaddr, &creg_val)) {
- rc = -EIO ;
- goto free_rmp;
- }
- creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
- writel(creg_val, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
- }
- iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
- if (iocb_stat == IOCB_SUCCESS) {
- spin_lock_irqsave(&phba->hbalock, flags);
- /* make sure the I/O had not been completed yet */
- if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
- /* open up abort window to timeout handler */
- cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
- }
- spin_unlock_irqrestore(&phba->hbalock, flags);
- return 0; /* done for now */
- } else if (iocb_stat == IOCB_BUSY) {
- rc = -EAGAIN;
- } else {
- rc = -EIO;
- }
- /* iocb failed so cleanup */
- job->dd_data = NULL;
- free_rmp:
- lpfc_free_bsg_buffers(phba, rmp);
- free_cmp:
- lpfc_free_bsg_buffers(phba, cmp);
- free_bmp:
- if (bmp->virt)
- lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
- kfree(bmp);
- free_cmdiocbq:
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- free_ndlp:
- lpfc_nlp_put(ndlp);
- no_ndlp:
- kfree(dd_data);
- no_dd_data:
- /* make error code available to userspace */
- job->reply->result = rc;
- job->dd_data = NULL;
- return rc;
- }
- /**
- * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
- * @phba: Pointer to HBA context object.
- * @cmdiocbq: Pointer to command iocb.
- * @rspiocbq: Pointer to response iocb.
- *
- * This function is the completion handler for iocbs issued using
- * lpfc_bsg_rport_els_cmp function. This function is called by the
- * ring event handler function without any lock held. This function
- * can be called from both worker thread context and interrupt
- * context. This function also can be called from other thread which
- * cleans up the SLI layer objects.
- * This function copies the contents of the response iocb to the
- * response iocb memory object provided by the caller of
- * lpfc_sli_issue_iocb_wait and then wakes up the thread which
- * sleeps for the iocb completion.
- **/
- static void
- lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
- struct lpfc_iocbq *cmdiocbq,
- struct lpfc_iocbq *rspiocbq)
- {
- struct bsg_job_data *dd_data;
- struct fc_bsg_job *job;
- IOCB_t *rsp;
- struct lpfc_nodelist *ndlp;
- struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL;
- struct fc_bsg_ctels_reply *els_reply;
- uint8_t *rjt_data;
- unsigned long flags;
- unsigned int rsp_size;
- int rc = 0;
- dd_data = cmdiocbq->context1;
- ndlp = dd_data->context_un.iocb.ndlp;
- cmdiocbq->context1 = ndlp;
- /* Determine if job has been aborted */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- job = dd_data->set_job;
- if (job) {
- /* Prevent timeout handling from trying to abort job */
- job->dd_data = NULL;
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /* Close the timeout handler abort window */
- spin_lock_irqsave(&phba->hbalock, flags);
- cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
- spin_unlock_irqrestore(&phba->hbalock, flags);
- rsp = &rspiocbq->iocb;
- pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2;
- prsp = (struct lpfc_dmabuf *)pcmd->list.next;
- /* Copy the completed job data or determine the job status if job is
- * still active
- */
- if (job) {
- if (rsp->ulpStatus == IOSTAT_SUCCESS) {
- rsp_size = rsp->un.elsreq64.bdl.bdeSize;
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- prsp->virt,
- rsp_size);
- } else if (rsp->ulpStatus == IOSTAT_LS_RJT) {
- job->reply->reply_payload_rcv_len =
- sizeof(struct fc_bsg_ctels_reply);
- /* LS_RJT data returned in word 4 */
- rjt_data = (uint8_t *)&rsp->un.ulpWord[4];
- els_reply = &job->reply->reply_data.ctels_reply;
- els_reply->status = FC_CTELS_STATUS_REJECT;
- els_reply->rjt_data.action = rjt_data[3];
- els_reply->rjt_data.reason_code = rjt_data[2];
- els_reply->rjt_data.reason_explanation = rjt_data[1];
- els_reply->rjt_data.vendor_unique = rjt_data[0];
- } else {
- rc = -EIO;
- }
- }
- lpfc_nlp_put(ndlp);
- lpfc_els_free_iocb(phba, cmdiocbq);
- kfree(dd_data);
- /* Complete the job if the job is still active */
- if (job) {
- job->reply->result = rc;
- job->job_done(job);
- }
- return;
- }
- /**
- * lpfc_bsg_rport_els - send an ELS command from a bsg request
- * @job: fc_bsg_job to handle
- **/
- static int
- lpfc_bsg_rport_els(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct lpfc_rport_data *rdata = job->rport->dd_data;
- struct lpfc_nodelist *ndlp = rdata->pnode;
- uint32_t elscmd;
- uint32_t cmdsize;
- struct lpfc_iocbq *cmdiocbq;
- uint16_t rpi = 0;
- struct bsg_job_data *dd_data;
- unsigned long flags;
- uint32_t creg_val;
- int rc = 0;
- /* in case no data is transferred */
- job->reply->reply_payload_rcv_len = 0;
- /* verify the els command is not greater than the
- * maximum ELS transfer size.
- */
- if (job->request_payload.payload_len > FCELSSIZE) {
- rc = -EINVAL;
- goto no_dd_data;
- }
- /* allocate our bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2735 Failed allocation of dd_data\n");
- rc = -ENOMEM;
- goto no_dd_data;
- }
- elscmd = job->request->rqst_data.r_els.els_code;
- cmdsize = job->request_payload.payload_len;
- if (!lpfc_nlp_get(ndlp)) {
- rc = -ENODEV;
- goto free_dd_data;
- }
- /* We will use the allocated dma buffers by prep els iocb for command
- * and response to ensure if the job times out and the request is freed,
- * we won't be dma into memory that is no longer allocated to for the
- * request.
- */
- cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
- ndlp->nlp_DID, elscmd);
- if (!cmdiocbq) {
- rc = -EIO;
- goto release_ndlp;
- }
- rpi = ndlp->nlp_rpi;
- /* Transfer the request payload to allocated command dma buffer */
- sg_copy_to_buffer(job->request_payload.sg_list,
- job->request_payload.sg_cnt,
- ((struct lpfc_dmabuf *)cmdiocbq->context2)->virt,
- cmdsize);
- if (phba->sli_rev == LPFC_SLI_REV4)
- cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi];
- else
- cmdiocbq->iocb.ulpContext = rpi;
- cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
- cmdiocbq->context1 = dd_data;
- cmdiocbq->context_un.ndlp = ndlp;
- cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp;
- dd_data->type = TYPE_IOCB;
- dd_data->set_job = job;
- dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
- dd_data->context_un.iocb.ndlp = ndlp;
- dd_data->context_un.iocb.rmp = NULL;
- job->dd_data = dd_data;
- if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
- if (lpfc_readl(phba->HCregaddr, &creg_val)) {
- rc = -EIO;
- goto linkdown_err;
- }
- creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
- writel(creg_val, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
- }
- rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
- if (rc == IOCB_SUCCESS) {
- spin_lock_irqsave(&phba->hbalock, flags);
- /* make sure the I/O had not been completed/released */
- if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
- /* open up abort window to timeout handler */
- cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
- }
- spin_unlock_irqrestore(&phba->hbalock, flags);
- return 0; /* done for now */
- } else if (rc == IOCB_BUSY) {
- rc = -EAGAIN;
- } else {
- rc = -EIO;
- }
- /* iocb failed so cleanup */
- job->dd_data = NULL;
- linkdown_err:
- cmdiocbq->context1 = ndlp;
- lpfc_els_free_iocb(phba, cmdiocbq);
- release_ndlp:
- lpfc_nlp_put(ndlp);
- free_dd_data:
- kfree(dd_data);
- no_dd_data:
- /* make error code available to userspace */
- job->reply->result = rc;
- job->dd_data = NULL;
- return rc;
- }
- /**
- * lpfc_bsg_event_free - frees an allocated event structure
- * @kref: Pointer to a kref.
- *
- * Called from kref_put. Back cast the kref into an event structure address.
- * Free any events to get, delete associated nodes, free any events to see,
- * free any data then free the event itself.
- **/
- static void
- lpfc_bsg_event_free(struct kref *kref)
- {
- struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
- kref);
- struct event_data *ed;
- list_del(&evt->node);
- while (!list_empty(&evt->events_to_get)) {
- ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
- list_del(&ed->node);
- kfree(ed->data);
- kfree(ed);
- }
- while (!list_empty(&evt->events_to_see)) {
- ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
- list_del(&ed->node);
- kfree(ed->data);
- kfree(ed);
- }
- kfree(evt->dd_data);
- kfree(evt);
- }
- /**
- * lpfc_bsg_event_ref - increments the kref for an event
- * @evt: Pointer to an event structure.
- **/
- static inline void
- lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
- {
- kref_get(&evt->kref);
- }
- /**
- * lpfc_bsg_event_unref - Uses kref_put to free an event structure
- * @evt: Pointer to an event structure.
- **/
- static inline void
- lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
- {
- kref_put(&evt->kref, lpfc_bsg_event_free);
- }
- /**
- * lpfc_bsg_event_new - allocate and initialize a event structure
- * @ev_mask: Mask of events.
- * @ev_reg_id: Event reg id.
- * @ev_req_id: Event request id.
- **/
- static struct lpfc_bsg_event *
- lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
- {
- struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
- if (!evt)
- return NULL;
- INIT_LIST_HEAD(&evt->events_to_get);
- INIT_LIST_HEAD(&evt->events_to_see);
- evt->type_mask = ev_mask;
- evt->req_id = ev_req_id;
- evt->reg_id = ev_reg_id;
- evt->wait_time_stamp = jiffies;
- evt->dd_data = NULL;
- init_waitqueue_head(&evt->wq);
- kref_init(&evt->kref);
- return evt;
- }
- /**
- * diag_cmd_data_free - Frees an lpfc dma buffer extension
- * @phba: Pointer to HBA context object.
- * @mlist: Pointer to an lpfc dma buffer extension.
- **/
- static int
- diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
- {
- struct lpfc_dmabufext *mlast;
- struct pci_dev *pcidev;
- struct list_head head, *curr, *next;
- if ((!mlist) || (!lpfc_is_link_up(phba) &&
- (phba->link_flag & LS_LOOPBACK_MODE))) {
- return 0;
- }
- pcidev = phba->pcidev;
- list_add_tail(&head, &mlist->dma.list);
- list_for_each_safe(curr, next, &head) {
- mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
- if (mlast->dma.virt)
- dma_free_coherent(&pcidev->dev,
- mlast->size,
- mlast->dma.virt,
- mlast->dma.phys);
- kfree(mlast);
- }
- return 0;
- }
- /**
- * lpfc_bsg_ct_unsol_event - process an unsolicited CT command
- * @phba:
- * @pring:
- * @piocbq:
- *
- * This function is called when an unsolicited CT command is received. It
- * forwards the event to any processes registered to receive CT events.
- **/
- int
- lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
- struct lpfc_iocbq *piocbq)
- {
- uint32_t evt_req_id = 0;
- uint32_t cmd;
- struct lpfc_dmabuf *dmabuf = NULL;
- struct lpfc_bsg_event *evt;
- struct event_data *evt_dat = NULL;
- struct lpfc_iocbq *iocbq;
- size_t offset = 0;
- struct list_head head;
- struct ulp_bde64 *bde;
- dma_addr_t dma_addr;
- int i;
- struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
- struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
- struct lpfc_hbq_entry *hbqe;
- struct lpfc_sli_ct_request *ct_req;
- struct fc_bsg_job *job = NULL;
- struct bsg_job_data *dd_data = NULL;
- unsigned long flags;
- int size = 0;
- INIT_LIST_HEAD(&head);
- list_add_tail(&head, &piocbq->list);
- if (piocbq->iocb.ulpBdeCount == 0 ||
- piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0)
- goto error_ct_unsol_exit;
- if (phba->link_state == LPFC_HBA_ERROR ||
- (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)))
- goto error_ct_unsol_exit;
- if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
- dmabuf = bdeBuf1;
- else {
- dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh,
- piocbq->iocb.un.cont64[0].addrLow);
- dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr);
- }
- if (dmabuf == NULL)
- goto error_ct_unsol_exit;
- ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt;
- evt_req_id = ct_req->FsType;
- cmd = ct_req->CommandResponse.bits.CmdRsp;
- if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
- lpfc_sli_ringpostbuf_put(phba, pring, dmabuf);
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
- if (!(evt->type_mask & FC_REG_CT_EVENT) ||
- evt->req_id != evt_req_id)
- continue;
- lpfc_bsg_event_ref(evt);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
- if (evt_dat == NULL) {
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- lpfc_bsg_event_unref(evt);
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2614 Memory allocation failed for "
- "CT event\n");
- break;
- }
- if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
- /* take accumulated byte count from the last iocbq */
- iocbq = list_entry(head.prev, typeof(*iocbq), list);
- evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
- } else {
- list_for_each_entry(iocbq, &head, list) {
- for (i = 0; i < iocbq->iocb.ulpBdeCount; i++)
- evt_dat->len +=
- iocbq->iocb.un.cont64[i].tus.f.bdeSize;
- }
- }
- evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
- if (evt_dat->data == NULL) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2615 Memory allocation failed for "
- "CT event data, size %d\n",
- evt_dat->len);
- kfree(evt_dat);
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- lpfc_bsg_event_unref(evt);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- goto error_ct_unsol_exit;
- }
- list_for_each_entry(iocbq, &head, list) {
- size = 0;
- if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
- bdeBuf1 = iocbq->context2;
- bdeBuf2 = iocbq->context3;
- }
- for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) {
- if (phba->sli3_options &
- LPFC_SLI3_HBQ_ENABLED) {
- if (i == 0) {
- hbqe = (struct lpfc_hbq_entry *)
- &iocbq->iocb.un.ulpWord[0];
- size = hbqe->bde.tus.f.bdeSize;
- dmabuf = bdeBuf1;
- } else if (i == 1) {
- hbqe = (struct lpfc_hbq_entry *)
- &iocbq->iocb.unsli3.
- sli3Words[4];
- size = hbqe->bde.tus.f.bdeSize;
- dmabuf = bdeBuf2;
- }
- if ((offset + size) > evt_dat->len)
- size = evt_dat->len - offset;
- } else {
- size = iocbq->iocb.un.cont64[i].
- tus.f.bdeSize;
- bde = &iocbq->iocb.un.cont64[i];
- dma_addr = getPaddr(bde->addrHigh,
- bde->addrLow);
- dmabuf = lpfc_sli_ringpostbuf_get(phba,
- pring, dma_addr);
- }
- if (!dmabuf) {
- lpfc_printf_log(phba, KERN_ERR,
- LOG_LIBDFC, "2616 No dmabuf "
- "found for iocbq 0x%p\n",
- iocbq);
- kfree(evt_dat->data);
- kfree(evt_dat);
- spin_lock_irqsave(&phba->ct_ev_lock,
- flags);
- lpfc_bsg_event_unref(evt);
- spin_unlock_irqrestore(
- &phba->ct_ev_lock, flags);
- goto error_ct_unsol_exit;
- }
- memcpy((char *)(evt_dat->data) + offset,
- dmabuf->virt, size);
- offset += size;
- if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
- !(phba->sli3_options &
- LPFC_SLI3_HBQ_ENABLED)) {
- lpfc_sli_ringpostbuf_put(phba, pring,
- dmabuf);
- } else {
- switch (cmd) {
- case ELX_LOOPBACK_DATA:
- if (phba->sli_rev <
- LPFC_SLI_REV4)
- diag_cmd_data_free(phba,
- (struct lpfc_dmabufext
- *)dmabuf);
- break;
- case ELX_LOOPBACK_XRI_SETUP:
- if ((phba->sli_rev ==
- LPFC_SLI_REV2) ||
- (phba->sli3_options &
- LPFC_SLI3_HBQ_ENABLED
- )) {
- lpfc_in_buf_free(phba,
- dmabuf);
- } else {
- lpfc_post_buffer(phba,
- pring,
- 1);
- }
- break;
- default:
- if (!(phba->sli3_options &
- LPFC_SLI3_HBQ_ENABLED))
- lpfc_post_buffer(phba,
- pring,
- 1);
- break;
- }
- }
- }
- }
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- if (phba->sli_rev == LPFC_SLI_REV4) {
- evt_dat->immed_dat = phba->ctx_idx;
- phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX;
- /* Provide warning for over-run of the ct_ctx array */
- if (phba->ct_ctx[evt_dat->immed_dat].valid ==
- UNSOL_VALID)
- lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
- "2717 CT context array entry "
- "[%d] over-run: oxid:x%x, "
- "sid:x%x\n", phba->ctx_idx,
- phba->ct_ctx[
- evt_dat->immed_dat].oxid,
- phba->ct_ctx[
- evt_dat->immed_dat].SID);
- phba->ct_ctx[evt_dat->immed_dat].rxid =
- piocbq->iocb.ulpContext;
- phba->ct_ctx[evt_dat->immed_dat].oxid =
- piocbq->iocb.unsli3.rcvsli3.ox_id;
- phba->ct_ctx[evt_dat->immed_dat].SID =
- piocbq->iocb.un.rcvels.remoteID;
- phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID;
- } else
- evt_dat->immed_dat = piocbq->iocb.ulpContext;
- evt_dat->type = FC_REG_CT_EVENT;
- list_add(&evt_dat->node, &evt->events_to_see);
- if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
- wake_up_interruptible(&evt->wq);
- lpfc_bsg_event_unref(evt);
- break;
- }
- list_move(evt->events_to_see.prev, &evt->events_to_get);
- dd_data = (struct bsg_job_data *)evt->dd_data;
- job = dd_data->set_job;
- dd_data->set_job = NULL;
- lpfc_bsg_event_unref(evt);
- if (job) {
- job->reply->reply_payload_rcv_len = size;
- /* make error code available to userspace */
- job->reply->result = 0;
- job->dd_data = NULL;
- /* complete the job back to userspace */
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- job->job_done(job);
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- }
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- error_ct_unsol_exit:
- if (!list_empty(&head))
- list_del(&head);
- if ((phba->sli_rev < LPFC_SLI_REV4) &&
- (evt_req_id == SLI_CT_ELX_LOOPBACK))
- return 0;
- return 1;
- }
- /**
- * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane
- * @phba: Pointer to HBA context object.
- * @dmabuf: pointer to a dmabuf that describes the FC sequence
- *
- * This function handles abort to the CT command toward management plane
- * for SLI4 port.
- *
- * If the pending context of a CT command to management plane present, clears
- * such context and returns 1 for handled; otherwise, it returns 0 indicating
- * no context exists.
- **/
- int
- lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
- {
- struct fc_frame_header fc_hdr;
- struct fc_frame_header *fc_hdr_ptr = &fc_hdr;
- int ctx_idx, handled = 0;
- uint16_t oxid, rxid;
- uint32_t sid;
- memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
- sid = sli4_sid_from_fc_hdr(fc_hdr_ptr);
- oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id);
- rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id);
- for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) {
- if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID)
- continue;
- if (phba->ct_ctx[ctx_idx].rxid != rxid)
- continue;
- if (phba->ct_ctx[ctx_idx].oxid != oxid)
- continue;
- if (phba->ct_ctx[ctx_idx].SID != sid)
- continue;
- phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID;
- handled = 1;
- }
- return handled;
- }
- /**
- * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
- * @job: SET_EVENT fc_bsg_job
- **/
- static int
- lpfc_bsg_hba_set_event(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct set_ct_event *event_req;
- struct lpfc_bsg_event *evt;
- int rc = 0;
- struct bsg_job_data *dd_data = NULL;
- uint32_t ev_mask;
- unsigned long flags;
- if (job->request_len <
- sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2612 Received SET_CT_EVENT below minimum "
- "size\n");
- rc = -EINVAL;
- goto job_error;
- }
- event_req = (struct set_ct_event *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
- FC_REG_EVENT_MASK);
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
- if (evt->reg_id == event_req->ev_reg_id) {
- lpfc_bsg_event_ref(evt);
- evt->wait_time_stamp = jiffies;
- dd_data = (struct bsg_job_data *)evt->dd_data;
- break;
- }
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- if (&evt->node == &phba->ct_ev_waiters) {
- /* no event waiting struct yet - first call */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (dd_data == NULL) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2734 Failed allocation of dd_data\n");
- rc = -ENOMEM;
- goto job_error;
- }
- evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
- event_req->ev_req_id);
- if (!evt) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2617 Failed allocation of event "
- "waiter\n");
- rc = -ENOMEM;
- goto job_error;
- }
- dd_data->type = TYPE_EVT;
- dd_data->set_job = NULL;
- dd_data->context_un.evt = evt;
- evt->dd_data = (void *)dd_data;
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_add(&evt->node, &phba->ct_ev_waiters);
- lpfc_bsg_event_ref(evt);
- evt->wait_time_stamp = jiffies;
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- }
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- evt->waiting = 1;
- dd_data->set_job = job; /* for unsolicited command */
- job->dd_data = dd_data; /* for fc transport timeout callback*/
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- return 0; /* call job done later */
- job_error:
- if (dd_data != NULL)
- kfree(dd_data);
- job->dd_data = NULL;
- return rc;
- }
- /**
- * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
- * @job: GET_EVENT fc_bsg_job
- **/
- static int
- lpfc_bsg_hba_get_event(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct get_ct_event *event_req;
- struct get_ct_event_reply *event_reply;
- struct lpfc_bsg_event *evt, *evt_next;
- struct event_data *evt_dat = NULL;
- unsigned long flags;
- uint32_t rc = 0;
- if (job->request_len <
- sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2613 Received GET_CT_EVENT request below "
- "minimum size\n");
- rc = -EINVAL;
- goto job_error;
- }
- event_req = (struct get_ct_event *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- event_reply = (struct get_ct_event_reply *)
- job->reply->reply_data.vendor_reply.vendor_rsp;
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) {
- if (evt->reg_id == event_req->ev_reg_id) {
- if (list_empty(&evt->events_to_get))
- break;
- lpfc_bsg_event_ref(evt);
- evt->wait_time_stamp = jiffies;
- evt_dat = list_entry(evt->events_to_get.prev,
- struct event_data, node);
- list_del(&evt_dat->node);
- break;
- }
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /* The app may continue to ask for event data until it gets
- * an error indicating that there isn't anymore
- */
- if (evt_dat == NULL) {
- job->reply->reply_payload_rcv_len = 0;
- rc = -ENOENT;
- goto job_error;
- }
- if (evt_dat->len > job->request_payload.payload_len) {
- evt_dat->len = job->request_payload.payload_len;
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2618 Truncated event data at %d "
- "bytes\n",
- job->request_payload.payload_len);
- }
- event_reply->type = evt_dat->type;
- event_reply->immed_data = evt_dat->immed_dat;
- if (evt_dat->len > 0)
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->request_payload.sg_list,
- job->request_payload.sg_cnt,
- evt_dat->data, evt_dat->len);
- else
- job->reply->reply_payload_rcv_len = 0;
- if (evt_dat) {
- kfree(evt_dat->data);
- kfree(evt_dat);
- }
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- lpfc_bsg_event_unref(evt);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- job->dd_data = NULL;
- job->reply->result = 0;
- job->job_done(job);
- return 0;
- job_error:
- job->dd_data = NULL;
- job->reply->result = rc;
- return rc;
- }
- /**
- * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler
- * @phba: Pointer to HBA context object.
- * @cmdiocbq: Pointer to command iocb.
- * @rspiocbq: Pointer to response iocb.
- *
- * This function is the completion handler for iocbs issued using
- * lpfc_issue_ct_rsp_cmp function. This function is called by the
- * ring event handler function without any lock held. This function
- * can be called from both worker thread context and interrupt
- * context. This function also can be called from other thread which
- * cleans up the SLI layer objects.
- * This function copy the contents of the response iocb to the
- * response iocb memory object provided by the caller of
- * lpfc_sli_issue_iocb_wait and then wakes up the thread which
- * sleeps for the iocb completion.
- **/
- static void
- lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
- struct lpfc_iocbq *cmdiocbq,
- struct lpfc_iocbq *rspiocbq)
- {
- struct bsg_job_data *dd_data;
- struct fc_bsg_job *job;
- IOCB_t *rsp;
- struct lpfc_dmabuf *bmp, *cmp;
- struct lpfc_nodelist *ndlp;
- unsigned long flags;
- int rc = 0;
- dd_data = cmdiocbq->context1;
- /* Determine if job has been aborted */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- job = dd_data->set_job;
- if (job) {
- /* Prevent timeout handling from trying to abort job */
- job->dd_data = NULL;
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /* Close the timeout handler abort window */
- spin_lock_irqsave(&phba->hbalock, flags);
- cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
- spin_unlock_irqrestore(&phba->hbalock, flags);
- ndlp = dd_data->context_un.iocb.ndlp;
- cmp = cmdiocbq->context2;
- bmp = cmdiocbq->context3;
- rsp = &rspiocbq->iocb;
- /* Copy the completed job data or set the error status */
- if (job) {
- if (rsp->ulpStatus) {
- if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
- switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
- case IOERR_SEQUENCE_TIMEOUT:
- rc = -ETIMEDOUT;
- break;
- case IOERR_INVALID_RPI:
- rc = -EFAULT;
- break;
- default:
- rc = -EACCES;
- break;
- }
- } else {
- rc = -EACCES;
- }
- } else {
- job->reply->reply_payload_rcv_len = 0;
- }
- }
- lpfc_free_bsg_buffers(phba, cmp);
- lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
- kfree(bmp);
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- lpfc_nlp_put(ndlp);
- kfree(dd_data);
- /* Complete the job if the job is still active */
- if (job) {
- job->reply->result = rc;
- job->job_done(job);
- }
- return;
- }
- /**
- * lpfc_issue_ct_rsp - issue a ct response
- * @phba: Pointer to HBA context object.
- * @job: Pointer to the job object.
- * @tag: tag index value into the ports context exchange array.
- * @bmp: Pointer to a dma buffer descriptor.
- * @num_entry: Number of enties in the bde.
- **/
- static int
- lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag,
- struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp,
- int num_entry)
- {
- IOCB_t *icmd;
- struct lpfc_iocbq *ctiocb = NULL;
- int rc = 0;
- struct lpfc_nodelist *ndlp = NULL;
- struct bsg_job_data *dd_data;
- unsigned long flags;
- uint32_t creg_val;
- /* allocate our bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2736 Failed allocation of dd_data\n");
- rc = -ENOMEM;
- goto no_dd_data;
- }
- /* Allocate buffer for command iocb */
- ctiocb = lpfc_sli_get_iocbq(phba);
- if (!ctiocb) {
- rc = -ENOMEM;
- goto no_ctiocb;
- }
- icmd = &ctiocb->iocb;
- icmd->un.xseq64.bdl.ulpIoTag32 = 0;
- icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
- icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
- icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
- icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
- icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
- icmd->un.xseq64.w5.hcsw.Dfctl = 0;
- icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
- icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
- /* Fill in rest of iocb */
- icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
- icmd->ulpBdeCount = 1;
- icmd->ulpLe = 1;
- icmd->ulpClass = CLASS3;
- if (phba->sli_rev == LPFC_SLI_REV4) {
- /* Do not issue unsol response if oxid not marked as valid */
- if (phba->ct_ctx[tag].valid != UNSOL_VALID) {
- rc = IOCB_ERROR;
- goto issue_ct_rsp_exit;
- }
- icmd->ulpContext = phba->ct_ctx[tag].rxid;
- icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid;
- ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
- if (!ndlp) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
- "2721 ndlp null for oxid %x SID %x\n",
- icmd->ulpContext,
- phba->ct_ctx[tag].SID);
- rc = IOCB_ERROR;
- goto issue_ct_rsp_exit;
- }
- /* Check if the ndlp is active */
- if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
- rc = IOCB_ERROR;
- goto issue_ct_rsp_exit;
- }
- /* get a refernece count so the ndlp doesn't go away while
- * we respond
- */
- if (!lpfc_nlp_get(ndlp)) {
- rc = IOCB_ERROR;
- goto issue_ct_rsp_exit;
- }
- icmd->un.ulpWord[3] =
- phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
- /* The exchange is done, mark the entry as invalid */
- phba->ct_ctx[tag].valid = UNSOL_INVALID;
- } else
- icmd->ulpContext = (ushort) tag;
- icmd->ulpTimeout = phba->fc_ratov * 2;
- /* Xmit CT response on exchange <xid> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n",
- icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state);
- ctiocb->iocb_cmpl = NULL;
- ctiocb->iocb_flag |= LPFC_IO_LIBDFC;
- ctiocb->vport = phba->pport;
- ctiocb->context1 = dd_data;
- ctiocb->context2 = cmp;
- ctiocb->context3 = bmp;
- ctiocb->context_un.ndlp = ndlp;
- ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp;
- dd_data->type = TYPE_IOCB;
- dd_data->set_job = job;
- dd_data->context_un.iocb.cmdiocbq = ctiocb;
- dd_data->context_un.iocb.ndlp = ndlp;
- dd_data->context_un.iocb.rmp = NULL;
- job->dd_data = dd_data;
- if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
- if (lpfc_readl(phba->HCregaddr, &creg_val)) {
- rc = -IOCB_ERROR;
- goto issue_ct_rsp_exit;
- }
- creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
- writel(creg_val, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
- }
- rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
- if (rc == IOCB_SUCCESS) {
- spin_lock_irqsave(&phba->hbalock, flags);
- /* make sure the I/O had not been completed/released */
- if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) {
- /* open up abort window to timeout handler */
- ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
- }
- spin_unlock_irqrestore(&phba->hbalock, flags);
- return 0; /* done for now */
- }
- /* iocb failed so cleanup */
- job->dd_data = NULL;
- issue_ct_rsp_exit:
- lpfc_sli_release_iocbq(phba, ctiocb);
- no_ctiocb:
- kfree(dd_data);
- no_dd_data:
- return rc;
- }
- /**
- * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
- * @job: SEND_MGMT_RESP fc_bsg_job
- **/
- static int
- lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- struct ulp_bde64 *bpl;
- struct lpfc_dmabuf *bmp = NULL, *cmp = NULL;
- int bpl_entries;
- uint32_t tag = mgmt_resp->tag;
- unsigned long reqbfrcnt =
- (unsigned long)job->request_payload.payload_len;
- int rc = 0;
- /* in case no data is transferred */
- job->reply->reply_payload_rcv_len = 0;
- if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
- rc = -ERANGE;
- goto send_mgmt_rsp_exit;
- }
- bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (!bmp) {
- rc = -ENOMEM;
- goto send_mgmt_rsp_exit;
- }
- bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
- if (!bmp->virt) {
- rc = -ENOMEM;
- goto send_mgmt_rsp_free_bmp;
- }
- INIT_LIST_HEAD(&bmp->list);
- bpl = (struct ulp_bde64 *) bmp->virt;
- bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64));
- cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
- 1, bpl, &bpl_entries);
- if (!cmp) {
- rc = -ENOMEM;
- goto send_mgmt_rsp_free_bmp;
- }
- lpfc_bsg_copy_data(cmp, &job->request_payload,
- job->request_payload.payload_len, 1);
- rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries);
- if (rc == IOCB_SUCCESS)
- return 0; /* done for now */
- rc = -EACCES;
- lpfc_free_bsg_buffers(phba, cmp);
- send_mgmt_rsp_free_bmp:
- if (bmp->virt)
- lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
- kfree(bmp);
- send_mgmt_rsp_exit:
- /* make error code available to userspace */
- job->reply->result = rc;
- job->dd_data = NULL;
- return rc;
- }
- /**
- * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode
- * @phba: Pointer to HBA context object.
- *
- * This function is responsible for preparing driver for diag loopback
- * on device.
- */
- static int
- lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
- {
- struct lpfc_vport **vports;
- struct Scsi_Host *shost;
- struct lpfc_sli *psli;
- struct lpfc_sli_ring *pring;
- int i = 0;
- psli = &phba->sli;
- if (!psli)
- return -ENODEV;
- pring = &psli->ring[LPFC_FCP_RING];
- if (!pring)
- return -ENODEV;
- if ((phba->link_state == LPFC_HBA_ERROR) ||
- (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
- (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
- return -EACCES;
- vports = lpfc_create_vport_work_array(phba);
- if (vports) {
- for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
- shost = lpfc_shost_from_vport(vports[i]);
- scsi_block_requests(shost);
- }
- lpfc_destroy_vport_work_array(phba, vports);
- } else {
- shost = lpfc_shost_from_vport(phba->pport);
- scsi_block_requests(shost);
- }
- while (!list_empty(&pring->txcmplq)) {
- if (i++ > 500) /* wait up to 5 seconds */
- break;
- msleep(10);
- }
- return 0;
- }
- /**
- * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode
- * @phba: Pointer to HBA context object.
- *
- * This function is responsible for driver exit processing of setting up
- * diag loopback mode on device.
- */
- static void
- lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba)
- {
- struct Scsi_Host *shost;
- struct lpfc_vport **vports;
- int i;
- vports = lpfc_create_vport_work_array(phba);
- if (vports) {
- for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
- shost = lpfc_shost_from_vport(vports[i]);
- scsi_unblock_requests(shost);
- }
- lpfc_destroy_vport_work_array(phba, vports);
- } else {
- shost = lpfc_shost_from_vport(phba->pport);
- scsi_unblock_requests(shost);
- }
- return;
- }
- /**
- * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command
- * @phba: Pointer to HBA context object.
- * @job: LPFC_BSG_VENDOR_DIAG_MODE
- *
- * This function is responsible for placing an sli3 port into diagnostic
- * loopback mode in order to perform a diagnostic loopback test.
- * All new scsi requests are blocked, a small delay is used to allow the
- * scsi requests to complete then the link is brought down. If the link is
- * is placed in loopback mode then scsi requests are again allowed
- * so the scsi mid-layer doesn't give up on the port.
- * All of this is done in-line.
- */
- static int
- lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
- {
- struct diag_mode_set *loopback_mode;
- uint32_t link_flags;
- uint32_t timeout;
- LPFC_MBOXQ_t *pmboxq = NULL;
- int mbxstatus = MBX_SUCCESS;
- int i = 0;
- int rc = 0;
- /* no data to return just the return code */
- job->reply->reply_payload_rcv_len = 0;
- if (job->request_len < sizeof(struct fc_bsg_request) +
- sizeof(struct diag_mode_set)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2738 Received DIAG MODE request size:%d "
- "below the minimum size:%d\n",
- job->request_len,
- (int)(sizeof(struct fc_bsg_request) +
- sizeof(struct diag_mode_set)));
- rc = -EINVAL;
- goto job_error;
- }
- rc = lpfc_bsg_diag_mode_enter(phba);
- if (rc)
- goto job_error;
- /* bring the link to diagnostic mode */
- loopback_mode = (struct diag_mode_set *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- link_flags = loopback_mode->type;
- timeout = loopback_mode->timeout * 100;
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq) {
- rc = -ENOMEM;
- goto loopback_mode_exit;
- }
- memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
- pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
- pmboxq->u.mb.mbxOwner = OWN_HOST;
- mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
- if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
- /* wait for link down before proceeding */
- i = 0;
- while (phba->link_state != LPFC_LINK_DOWN) {
- if (i++ > timeout) {
- rc = -ETIMEDOUT;
- goto loopback_mode_exit;
- }
- msleep(10);
- }
- memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
- if (link_flags == INTERNAL_LOOP_BACK)
- pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
- else
- pmboxq->u.mb.un.varInitLnk.link_flags =
- FLAGS_TOPOLOGY_MODE_LOOP;
- pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
- pmboxq->u.mb.mbxOwner = OWN_HOST;
- mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
- LPFC_MBOX_TMO);
- if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
- rc = -ENODEV;
- else {
- spin_lock_irq(&phba->hbalock);
- phba->link_flag |= LS_LOOPBACK_MODE;
- spin_unlock_irq(&phba->hbalock);
- /* wait for the link attention interrupt */
- msleep(100);
- i = 0;
- while (phba->link_state != LPFC_HBA_READY) {
- if (i++ > timeout) {
- rc = -ETIMEDOUT;
- break;
- }
- msleep(10);
- }
- }
- } else
- rc = -ENODEV;
- loopback_mode_exit:
- lpfc_bsg_diag_mode_exit(phba);
- /*
- * Let SLI layer release mboxq if mbox command completed after timeout.
- */
- if (pmboxq && mbxstatus != MBX_TIMEOUT)
- mempool_free(pmboxq, phba->mbox_mem_pool);
- job_error:
- /* make error code available to userspace */
- job->reply->result = rc;
- /* complete the job back to userspace if no error */
- if (rc == 0)
- job->job_done(job);
- return rc;
- }
- /**
- * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state
- * @phba: Pointer to HBA context object.
- * @diag: Flag for set link to diag or nomral operation state.
- *
- * This function is responsible for issuing a sli4 mailbox command for setting
- * link to either diag state or normal operation state.
- */
- static int
- lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
- {
- LPFC_MBOXQ_t *pmboxq;
- struct lpfc_mbx_set_link_diag_state *link_diag_state;
- uint32_t req_len, alloc_len;
- int mbxstatus = MBX_SUCCESS, rc;
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq)
- return -ENOMEM;
- req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
- sizeof(struct lpfc_sli4_cfg_mhdr));
- alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
- LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
- req_len, LPFC_SLI4_MBX_EMBED);
- if (alloc_len != req_len) {
- rc = -ENOMEM;
- goto link_diag_state_set_out;
- }
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
- diag, phba->sli4_hba.lnk_info.lnk_tp,
- phba->sli4_hba.lnk_info.lnk_no);
- link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
- bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
- LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
- bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
- phba->sli4_hba.lnk_info.lnk_no);
- bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
- phba->sli4_hba.lnk_info.lnk_tp);
- if (diag)
- bf_set(lpfc_mbx_set_diag_state_diag,
- &link_diag_state->u.req, 1);
- else
- bf_set(lpfc_mbx_set_diag_state_diag,
- &link_diag_state->u.req, 0);
- mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
- if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0))
- rc = 0;
- else
- rc = -ENODEV;
- link_diag_state_set_out:
- if (pmboxq && (mbxstatus != MBX_TIMEOUT))
- mempool_free(pmboxq, phba->mbox_mem_pool);
- return rc;
- }
- /**
- * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic
- * @phba: Pointer to HBA context object.
- *
- * This function is responsible for issuing a sli4 mailbox command for setting
- * up internal loopback diagnostic.
- */
- static int
- lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba)
- {
- LPFC_MBOXQ_t *pmboxq;
- uint32_t req_len, alloc_len;
- struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
- int mbxstatus = MBX_SUCCESS, rc = 0;
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq)
- return -ENOMEM;
- req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
- sizeof(struct lpfc_sli4_cfg_mhdr));
- alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
- LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
- req_len, LPFC_SLI4_MBX_EMBED);
- if (alloc_len != req_len) {
- mempool_free(pmboxq, phba->mbox_mem_pool);
- return -ENOMEM;
- }
- link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
- bf_set(lpfc_mbx_set_diag_state_link_num,
- &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no);
- bf_set(lpfc_mbx_set_diag_state_link_type,
- &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp);
- bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
- LPFC_DIAG_LOOPBACK_TYPE_INTERNAL);
- mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
- if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3127 Failed setup loopback mode mailbox "
- "command, rc:x%x, status:x%x\n", mbxstatus,
- pmboxq->u.mb.mbxStatus);
- rc = -ENODEV;
- }
- if (pmboxq && (mbxstatus != MBX_TIMEOUT))
- mempool_free(pmboxq, phba->mbox_mem_pool);
- return rc;
- }
- /**
- * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
- * @phba: Pointer to HBA context object.
- *
- * This function set up SLI4 FC port registrations for diagnostic run, which
- * includes all the rpis, vfi, and also vpi.
- */
- static int
- lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
- {
- int rc;
- if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3136 Port still had vfi registered: "
- "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
- phba->pport->fc_myDID, phba->fcf.fcfi,
- phba->sli4_hba.vfi_ids[phba->pport->vfi],
- phba->vpi_ids[phba->pport->vpi]);
- return -EINVAL;
- }
- rc = lpfc_issue_reg_vfi(phba->pport);
- return rc;
- }
- /**
- * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
- * @phba: Pointer to HBA context object.
- * @job: LPFC_BSG_VENDOR_DIAG_MODE
- *
- * This function is responsible for placing an sli4 port into diagnostic
- * loopback mode in order to perform a diagnostic loopback test.
- */
- static int
- lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
- {
- struct diag_mode_set *loopback_mode;
- uint32_t link_flags, timeout;
- int i, rc = 0;
- /* no data to return just the return code */
- job->reply->reply_payload_rcv_len = 0;
- if (job->request_len < sizeof(struct fc_bsg_request) +
- sizeof(struct diag_mode_set)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3011 Received DIAG MODE request size:%d "
- "below the minimum size:%d\n",
- job->request_len,
- (int)(sizeof(struct fc_bsg_request) +
- sizeof(struct diag_mode_set)));
- rc = -EINVAL;
- goto job_error;
- }
- rc = lpfc_bsg_diag_mode_enter(phba);
- if (rc)
- goto job_error;
- /* indicate we are in loobpack diagnostic mode */
- spin_lock_irq(&phba->hbalock);
- phba->link_flag |= LS_LOOPBACK_MODE;
- spin_unlock_irq(&phba->hbalock);
- /* reset port to start frome scratch */
- rc = lpfc_selective_reset(phba);
- if (rc)
- goto job_error;
- /* bring the link to diagnostic mode */
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3129 Bring link to diagnostic state.\n");
- loopback_mode = (struct diag_mode_set *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- link_flags = loopback_mode->type;
- timeout = loopback_mode->timeout * 100;
- rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
- if (rc) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3130 Failed to bring link to diagnostic "
- "state, rc:x%x\n", rc);
- goto loopback_mode_exit;
- }
- /* wait for link down before proceeding */
- i = 0;
- while (phba->link_state != LPFC_LINK_DOWN) {
- if (i++ > timeout) {
- rc = -ETIMEDOUT;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3131 Timeout waiting for link to "
- "diagnostic mode, timeout:%d ms\n",
- timeout * 10);
- goto loopback_mode_exit;
- }
- msleep(10);
- }
- /* set up loopback mode */
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3132 Set up loopback mode:x%x\n", link_flags);
- if (link_flags == INTERNAL_LOOP_BACK)
- rc = lpfc_sli4_bsg_set_internal_loopback(phba);
- else if (link_flags == EXTERNAL_LOOP_BACK)
- rc = lpfc_hba_init_link_fc_topology(phba,
- FLAGS_TOPOLOGY_MODE_PT_PT,
- MBX_NOWAIT);
- else {
- rc = -EINVAL;
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "3141 Loopback mode:x%x not supported\n",
- link_flags);
- goto loopback_mode_exit;
- }
- if (!rc) {
- /* wait for the link attention interrupt */
- msleep(100);
- i = 0;
- while (phba->link_state < LPFC_LINK_UP) {
- if (i++ > timeout) {
- rc = -ETIMEDOUT;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3137 Timeout waiting for link up "
- "in loopback mode, timeout:%d ms\n",
- timeout * 10);
- break;
- }
- msleep(10);
- }
- }
- /* port resource registration setup for loopback diagnostic */
- if (!rc) {
- /* set up a none zero myDID for loopback test */
- phba->pport->fc_myDID = 1;
- rc = lpfc_sli4_diag_fcport_reg_setup(phba);
- } else
- goto loopback_mode_exit;
- if (!rc) {
- /* wait for the port ready */
- msleep(100);
- i = 0;
- while (phba->link_state != LPFC_HBA_READY) {
- if (i++ > timeout) {
- rc = -ETIMEDOUT;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3133 Timeout waiting for port "
- "loopback mode ready, timeout:%d ms\n",
- timeout * 10);
- break;
- }
- msleep(10);
- }
- }
- loopback_mode_exit:
- /* clear loopback diagnostic mode */
- if (rc) {
- spin_lock_irq(&phba->hbalock);
- phba->link_flag &= ~LS_LOOPBACK_MODE;
- spin_unlock_irq(&phba->hbalock);
- }
- lpfc_bsg_diag_mode_exit(phba);
- job_error:
- /* make error code available to userspace */
- job->reply->result = rc;
- /* complete the job back to userspace if no error */
- if (rc == 0)
- job->job_done(job);
- return rc;
- }
- /**
- * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode
- * @job: LPFC_BSG_VENDOR_DIAG_MODE
- *
- * This function is responsible for responding to check and dispatch bsg diag
- * command from the user to proper driver action routines.
- */
- static int
- lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job)
- {
- struct Scsi_Host *shost;
- struct lpfc_vport *vport;
- struct lpfc_hba *phba;
- int rc;
- shost = job->shost;
- if (!shost)
- return -ENODEV;
- vport = (struct lpfc_vport *)job->shost->hostdata;
- if (!vport)
- return -ENODEV;
- phba = vport->phba;
- if (!phba)
- return -ENODEV;
- if (phba->sli_rev < LPFC_SLI_REV4)
- rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job);
- else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
- LPFC_SLI_INTF_IF_TYPE_2)
- rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job);
- else
- rc = -ENODEV;
- return rc;
- }
- /**
- * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode
- * @job: LPFC_BSG_VENDOR_DIAG_MODE_END
- *
- * This function is responsible for responding to check and dispatch bsg diag
- * command from the user to proper driver action routines.
- */
- static int
- lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job)
- {
- struct Scsi_Host *shost;
- struct lpfc_vport *vport;
- struct lpfc_hba *phba;
- struct diag_mode_set *loopback_mode_end_cmd;
- uint32_t timeout;
- int rc, i;
- shost = job->shost;
- if (!shost)
- return -ENODEV;
- vport = (struct lpfc_vport *)job->shost->hostdata;
- if (!vport)
- return -ENODEV;
- phba = vport->phba;
- if (!phba)
- return -ENODEV;
- if (phba->sli_rev < LPFC_SLI_REV4)
- return -ENODEV;
- if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
- LPFC_SLI_INTF_IF_TYPE_2)
- return -ENODEV;
- /* clear loopback diagnostic mode */
- spin_lock_irq(&phba->hbalock);
- phba->link_flag &= ~LS_LOOPBACK_MODE;
- spin_unlock_irq(&phba->hbalock);
- loopback_mode_end_cmd = (struct diag_mode_set *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- timeout = loopback_mode_end_cmd->timeout * 100;
- rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
- if (rc) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3139 Failed to bring link to diagnostic "
- "state, rc:x%x\n", rc);
- goto loopback_mode_end_exit;
- }
- /* wait for link down before proceeding */
- i = 0;
- while (phba->link_state != LPFC_LINK_DOWN) {
- if (i++ > timeout) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3140 Timeout waiting for link to "
- "diagnostic mode_end, timeout:%d ms\n",
- timeout * 10);
- /* there is nothing much we can do here */
- break;
- }
- msleep(10);
- }
- /* reset port resource registrations */
- rc = lpfc_selective_reset(phba);
- phba->pport->fc_myDID = 0;
- loopback_mode_end_exit:
- /* make return code available to userspace */
- job->reply->result = rc;
- /* complete the job back to userspace if no error */
- if (rc == 0)
- job->job_done(job);
- return rc;
- }
- /**
- * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test
- * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST
- *
- * This function is to perform SLI4 diag link test request from the user
- * applicaiton.
- */
- static int
- lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job)
- {
- struct Scsi_Host *shost;
- struct lpfc_vport *vport;
- struct lpfc_hba *phba;
- LPFC_MBOXQ_t *pmboxq;
- struct sli4_link_diag *link_diag_test_cmd;
- uint32_t req_len, alloc_len;
- struct lpfc_mbx_run_link_diag_test *run_link_diag_test;
- union lpfc_sli4_cfg_shdr *shdr;
- uint32_t shdr_status, shdr_add_status;
- struct diag_status *diag_status_reply;
- int mbxstatus, rc = 0;
- shost = job->shost;
- if (!shost) {
- rc = -ENODEV;
- goto job_error;
- }
- vport = (struct lpfc_vport *)job->shost->hostdata;
- if (!vport) {
- rc = -ENODEV;
- goto job_error;
- }
- phba = vport->phba;
- if (!phba) {
- rc = -ENODEV;
- goto job_error;
- }
- if (phba->sli_rev < LPFC_SLI_REV4) {
- rc = -ENODEV;
- goto job_error;
- }
- if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
- LPFC_SLI_INTF_IF_TYPE_2) {
- rc = -ENODEV;
- goto job_error;
- }
- if (job->request_len < sizeof(struct fc_bsg_request) +
- sizeof(struct sli4_link_diag)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3013 Received LINK DIAG TEST request "
- " size:%d below the minimum size:%d\n",
- job->request_len,
- (int)(sizeof(struct fc_bsg_request) +
- sizeof(struct sli4_link_diag)));
- rc = -EINVAL;
- goto job_error;
- }
- rc = lpfc_bsg_diag_mode_enter(phba);
- if (rc)
- goto job_error;
- link_diag_test_cmd = (struct sli4_link_diag *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
- if (rc)
- goto job_error;
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq) {
- rc = -ENOMEM;
- goto link_diag_test_exit;
- }
- req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
- sizeof(struct lpfc_sli4_cfg_mhdr));
- alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
- LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
- req_len, LPFC_SLI4_MBX_EMBED);
- if (alloc_len != req_len) {
- rc = -ENOMEM;
- goto link_diag_test_exit;
- }
- run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
- bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
- phba->sli4_hba.lnk_info.lnk_no);
- bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
- phba->sli4_hba.lnk_info.lnk_tp);
- bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
- link_diag_test_cmd->test_id);
- bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
- link_diag_test_cmd->loops);
- bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req,
- link_diag_test_cmd->test_version);
- bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req,
- link_diag_test_cmd->error_action);
- mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
- shdr = (union lpfc_sli4_cfg_shdr *)
- &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr;
- shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
- shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
- if (shdr_status || shdr_add_status || mbxstatus) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "3010 Run link diag test mailbox failed with "
- "mbx_status x%x status x%x, add_status x%x\n",
- mbxstatus, shdr_status, shdr_add_status);
- }
- diag_status_reply = (struct diag_status *)
- job->reply->reply_data.vendor_reply.vendor_rsp;
- if (job->reply_len <
- sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "3012 Received Run link diag test reply "
- "below minimum size (%d): reply_len:%d\n",
- (int)(sizeof(struct fc_bsg_request) +
- sizeof(struct diag_status)),
- job->reply_len);
- rc = -EINVAL;
- goto job_error;
- }
- diag_status_reply->mbox_status = mbxstatus;
- diag_status_reply->shdr_status = shdr_status;
- diag_status_reply->shdr_add_status = shdr_add_status;
- link_diag_test_exit:
- rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
- if (pmboxq)
- mempool_free(pmboxq, phba->mbox_mem_pool);
- lpfc_bsg_diag_mode_exit(phba);
- job_error:
- /* make error code available to userspace */
- job->reply->result = rc;
- /* complete the job back to userspace if no error */
- if (rc == 0)
- job->job_done(job);
- return rc;
- }
- /**
- * lpfcdiag_loop_self_reg - obtains a remote port login id
- * @phba: Pointer to HBA context object
- * @rpi: Pointer to a remote port login id
- *
- * This function obtains a remote port login id so the diag loopback test
- * can send and receive its own unsolicited CT command.
- **/
- static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
- {
- LPFC_MBOXQ_t *mbox;
- struct lpfc_dmabuf *dmabuff;
- int status;
- mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!mbox)
- return -ENOMEM;
- if (phba->sli_rev < LPFC_SLI_REV4)
- status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
- (uint8_t *)&phba->pport->fc_sparam,
- mbox, *rpi);
- else {
- *rpi = lpfc_sli4_alloc_rpi(phba);
- status = lpfc_reg_rpi(phba, phba->pport->vpi,
- phba->pport->fc_myDID,
- (uint8_t *)&phba->pport->fc_sparam,
- mbox, *rpi);
- }
- if (status) {
- mempool_free(mbox, phba->mbox_mem_pool);
- if (phba->sli_rev == LPFC_SLI_REV4)
- lpfc_sli4_free_rpi(phba, *rpi);
- return -ENOMEM;
- }
- dmabuff = (struct lpfc_dmabuf *) mbox->context1;
- mbox->context1 = NULL;
- mbox->context2 = NULL;
- status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
- if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
- lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
- kfree(dmabuff);
- if (status != MBX_TIMEOUT)
- mempool_free(mbox, phba->mbox_mem_pool);
- if (phba->sli_rev == LPFC_SLI_REV4)
- lpfc_sli4_free_rpi(phba, *rpi);
- return -ENODEV;
- }
- if (phba->sli_rev < LPFC_SLI_REV4)
- *rpi = mbox->u.mb.un.varWords[0];
- lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
- kfree(dmabuff);
- mempool_free(mbox, phba->mbox_mem_pool);
- return 0;
- }
- /**
- * lpfcdiag_loop_self_unreg - unregs from the rpi
- * @phba: Pointer to HBA context object
- * @rpi: Remote port login id
- *
- * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
- **/
- static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
- {
- LPFC_MBOXQ_t *mbox;
- int status;
- /* Allocate mboxq structure */
- mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (mbox == NULL)
- return -ENOMEM;
- if (phba->sli_rev < LPFC_SLI_REV4)
- lpfc_unreg_login(phba, 0, rpi, mbox);
- else
- lpfc_unreg_login(phba, phba->pport->vpi,
- phba->sli4_hba.rpi_ids[rpi], mbox);
- status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
- if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
- if (status != MBX_TIMEOUT)
- mempool_free(mbox, phba->mbox_mem_pool);
- return -EIO;
- }
- mempool_free(mbox, phba->mbox_mem_pool);
- if (phba->sli_rev == LPFC_SLI_REV4)
- lpfc_sli4_free_rpi(phba, rpi);
- return 0;
- }
- /**
- * lpfcdiag_loop_get_xri - obtains the transmit and receive ids
- * @phba: Pointer to HBA context object
- * @rpi: Remote port login id
- * @txxri: Pointer to transmit exchange id
- * @rxxri: Pointer to response exchabge id
- *
- * This function obtains the transmit and receive ids required to send
- * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
- * flags are used to the unsolicted response handler is able to process
- * the ct command sent on the same port.
- **/
- static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
- uint16_t *txxri, uint16_t * rxxri)
- {
- struct lpfc_bsg_event *evt;
- struct lpfc_iocbq *cmdiocbq, *rspiocbq;
- IOCB_t *cmd, *rsp;
- struct lpfc_dmabuf *dmabuf;
- struct ulp_bde64 *bpl = NULL;
- struct lpfc_sli_ct_request *ctreq = NULL;
- int ret_val = 0;
- int time_left;
- int iocb_stat = IOCB_SUCCESS;
- unsigned long flags;
- *txxri = 0;
- *rxxri = 0;
- evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
- SLI_CT_ELX_LOOPBACK);
- if (!evt)
- return -ENOMEM;
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_add(&evt->node, &phba->ct_ev_waiters);
- lpfc_bsg_event_ref(evt);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- cmdiocbq = lpfc_sli_get_iocbq(phba);
- rspiocbq = lpfc_sli_get_iocbq(phba);
- dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (dmabuf) {
- dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
- if (dmabuf->virt) {
- INIT_LIST_HEAD(&dmabuf->list);
- bpl = (struct ulp_bde64 *) dmabuf->virt;
- memset(bpl, 0, sizeof(*bpl));
- ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
- bpl->addrHigh =
- le32_to_cpu(putPaddrHigh(dmabuf->phys +
- sizeof(*bpl)));
- bpl->addrLow =
- le32_to_cpu(putPaddrLow(dmabuf->phys +
- sizeof(*bpl)));
- bpl->tus.f.bdeFlags = 0;
- bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
- bpl->tus.w = le32_to_cpu(bpl->tus.w);
- }
- }
- if (cmdiocbq == NULL || rspiocbq == NULL ||
- dmabuf == NULL || bpl == NULL || ctreq == NULL ||
- dmabuf->virt == NULL) {
- ret_val = -ENOMEM;
- goto err_get_xri_exit;
- }
- cmd = &cmdiocbq->iocb;
- rsp = &rspiocbq->iocb;
- memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
- ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
- ctreq->RevisionId.bits.InId = 0;
- ctreq->FsType = SLI_CT_ELX_LOOPBACK;
- ctreq->FsSubType = 0;
- ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
- ctreq->CommandResponse.bits.Size = 0;
- cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys);
- cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys);
- cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
- cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl);
- cmd->un.xseq64.w5.hcsw.Fctl = LA;
- cmd->un.xseq64.w5.hcsw.Dfctl = 0;
- cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
- cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
- cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
- cmd->ulpBdeCount = 1;
- cmd->ulpLe = 1;
- cmd->ulpClass = CLASS3;
- cmd->ulpContext = rpi;
- cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
- cmdiocbq->vport = phba->pport;
- cmdiocbq->iocb_cmpl = NULL;
- iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
- rspiocbq,
- (phba->fc_ratov * 2)
- + LPFC_DRVR_TIMEOUT);
- if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) {
- ret_val = -EIO;
- goto err_get_xri_exit;
- }
- *txxri = rsp->ulpContext;
- evt->waiting = 1;
- evt->wait_time_stamp = jiffies;
- time_left = wait_event_interruptible_timeout(
- evt->wq, !list_empty(&evt->events_to_see),
- msecs_to_jiffies(1000 *
- ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
- if (list_empty(&evt->events_to_see))
- ret_val = (time_left) ? -EINTR : -ETIMEDOUT;
- else {
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_move(evt->events_to_see.prev, &evt->events_to_get);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- *rxxri = (list_entry(evt->events_to_get.prev,
- typeof(struct event_data),
- node))->immed_dat;
- }
- evt->waiting = 0;
- err_get_xri_exit:
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- lpfc_bsg_event_unref(evt); /* release ref */
- lpfc_bsg_event_unref(evt); /* delete */
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- if (dmabuf) {
- if (dmabuf->virt)
- lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
- kfree(dmabuf);
- }
- if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT))
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- if (rspiocbq)
- lpfc_sli_release_iocbq(phba, rspiocbq);
- return ret_val;
- }
- /**
- * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers
- * @phba: Pointer to HBA context object
- *
- * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and.
- * returns the pointer to the buffer.
- **/
- static struct lpfc_dmabuf *
- lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba)
- {
- struct lpfc_dmabuf *dmabuf;
- struct pci_dev *pcidev = phba->pcidev;
- /* allocate dma buffer struct */
- dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (!dmabuf)
- return NULL;
- INIT_LIST_HEAD(&dmabuf->list);
- /* now, allocate dma buffer */
- dmabuf->virt = dma_zalloc_coherent(&pcidev->dev, BSG_MBOX_SIZE,
- &(dmabuf->phys), GFP_KERNEL);
- if (!dmabuf->virt) {
- kfree(dmabuf);
- return NULL;
- }
- return dmabuf;
- }
- /**
- * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer
- * @phba: Pointer to HBA context object.
- * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor.
- *
- * This routine just simply frees a dma buffer and its associated buffer
- * descriptor referred by @dmabuf.
- **/
- static void
- lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf)
- {
- struct pci_dev *pcidev = phba->pcidev;
- if (!dmabuf)
- return;
- if (dmabuf->virt)
- dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE,
- dmabuf->virt, dmabuf->phys);
- kfree(dmabuf);
- return;
- }
- /**
- * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers
- * @phba: Pointer to HBA context object.
- * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs.
- *
- * This routine just simply frees all dma buffers and their associated buffer
- * descriptors referred by @dmabuf_list.
- **/
- static void
- lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba,
- struct list_head *dmabuf_list)
- {
- struct lpfc_dmabuf *dmabuf, *next_dmabuf;
- if (list_empty(dmabuf_list))
- return;
- list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) {
- list_del_init(&dmabuf->list);
- lpfc_bsg_dma_page_free(phba, dmabuf);
- }
- return;
- }
- /**
- * diag_cmd_data_alloc - fills in a bde struct with dma buffers
- * @phba: Pointer to HBA context object
- * @bpl: Pointer to 64 bit bde structure
- * @size: Number of bytes to process
- * @nocopydata: Flag to copy user data into the allocated buffer
- *
- * This function allocates page size buffers and populates an lpfc_dmabufext.
- * If allowed the user data pointed to with indataptr is copied into the kernel
- * memory. The chained list of page size buffers is returned.
- **/
- static struct lpfc_dmabufext *
- diag_cmd_data_alloc(struct lpfc_hba *phba,
- struct ulp_bde64 *bpl, uint32_t size,
- int nocopydata)
- {
- struct lpfc_dmabufext *mlist = NULL;
- struct lpfc_dmabufext *dmp;
- int cnt, offset = 0, i = 0;
- struct pci_dev *pcidev;
- pcidev = phba->pcidev;
- while (size) {
- /* We get chunks of 4K */
- if (size > BUF_SZ_4K)
- cnt = BUF_SZ_4K;
- else
- cnt = size;
- /* allocate struct lpfc_dmabufext buffer header */
- dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
- if (!dmp)
- goto out;
- INIT_LIST_HEAD(&dmp->dma.list);
- /* Queue it to a linked list */
- if (mlist)
- list_add_tail(&dmp->dma.list, &mlist->dma.list);
- else
- mlist = dmp;
- /* allocate buffer */
- dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
- cnt,
- &(dmp->dma.phys),
- GFP_KERNEL);
- if (!dmp->dma.virt)
- goto out;
- dmp->size = cnt;
- if (nocopydata) {
- bpl->tus.f.bdeFlags = 0;
- pci_dma_sync_single_for_device(phba->pcidev,
- dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE);
- } else {
- memset((uint8_t *)dmp->dma.virt, 0, cnt);
- bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
- }
- /* build buffer ptr list for IOCB */
- bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
- bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
- bpl->tus.f.bdeSize = (ushort) cnt;
- bpl->tus.w = le32_to_cpu(bpl->tus.w);
- bpl++;
- i++;
- offset += cnt;
- size -= cnt;
- }
- if (mlist) {
- mlist->flag = i;
- return mlist;
- }
- out:
- diag_cmd_data_free(phba, mlist);
- return NULL;
- }
- /**
- * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
- * @phba: Pointer to HBA context object
- * @rxxri: Receive exchange id
- * @len: Number of data bytes
- *
- * This function allocates and posts a data buffer of sufficient size to receive
- * an unsolicted CT command.
- **/
- static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
- size_t len)
- {
- struct lpfc_sli *psli = &phba->sli;
- struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
- struct lpfc_iocbq *cmdiocbq;
- IOCB_t *cmd = NULL;
- struct list_head head, *curr, *next;
- struct lpfc_dmabuf *rxbmp;
- struct lpfc_dmabuf *dmp;
- struct lpfc_dmabuf *mp[2] = {NULL, NULL};
- struct ulp_bde64 *rxbpl = NULL;
- uint32_t num_bde;
- struct lpfc_dmabufext *rxbuffer = NULL;
- int ret_val = 0;
- int iocb_stat;
- int i = 0;
- cmdiocbq = lpfc_sli_get_iocbq(phba);
- rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (rxbmp != NULL) {
- rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
- if (rxbmp->virt) {
- INIT_LIST_HEAD(&rxbmp->list);
- rxbpl = (struct ulp_bde64 *) rxbmp->virt;
- rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
- }
- }
- if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) {
- ret_val = -ENOMEM;
- goto err_post_rxbufs_exit;
- }
- /* Queue buffers for the receive exchange */
- num_bde = (uint32_t)rxbuffer->flag;
- dmp = &rxbuffer->dma;
- cmd = &cmdiocbq->iocb;
- i = 0;
- INIT_LIST_HEAD(&head);
- list_add_tail(&head, &dmp->list);
- list_for_each_safe(curr, next, &head) {
- mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
- list_del(curr);
- if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
- mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
- cmd->un.quexri64cx.buff.bde.addrHigh =
- putPaddrHigh(mp[i]->phys);
- cmd->un.quexri64cx.buff.bde.addrLow =
- putPaddrLow(mp[i]->phys);
- cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
- ((struct lpfc_dmabufext *)mp[i])->size;
- cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
- cmd->ulpCommand = CMD_QUE_XRI64_CX;
- cmd->ulpPU = 0;
- cmd->ulpLe = 1;
- cmd->ulpBdeCount = 1;
- cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
- } else {
- cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
- cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
- cmd->un.cont64[i].tus.f.bdeSize =
- ((struct lpfc_dmabufext *)mp[i])->size;
- cmd->ulpBdeCount = ++i;
- if ((--num_bde > 0) && (i < 2))
- continue;
- cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
- cmd->ulpLe = 1;
- }
- cmd->ulpClass = CLASS3;
- cmd->ulpContext = rxxri;
- iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
- 0);
- if (iocb_stat == IOCB_ERROR) {
- diag_cmd_data_free(phba,
- (struct lpfc_dmabufext *)mp[0]);
- if (mp[1])
- diag_cmd_data_free(phba,
- (struct lpfc_dmabufext *)mp[1]);
- dmp = list_entry(next, struct lpfc_dmabuf, list);
- ret_val = -EIO;
- goto err_post_rxbufs_exit;
- }
- lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
- if (mp[1]) {
- lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
- mp[1] = NULL;
- }
- /* The iocb was freed by lpfc_sli_issue_iocb */
- cmdiocbq = lpfc_sli_get_iocbq(phba);
- if (!cmdiocbq) {
- dmp = list_entry(next, struct lpfc_dmabuf, list);
- ret_val = -EIO;
- goto err_post_rxbufs_exit;
- }
- cmd = &cmdiocbq->iocb;
- i = 0;
- }
- list_del(&head);
- err_post_rxbufs_exit:
- if (rxbmp) {
- if (rxbmp->virt)
- lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
- kfree(rxbmp);
- }
- if (cmdiocbq)
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- return ret_val;
- }
- /**
- * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself
- * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
- *
- * This function receives a user data buffer to be transmitted and received on
- * the same port, the link must be up and in loopback mode prior
- * to being called.
- * 1. A kernel buffer is allocated to copy the user data into.
- * 2. The port registers with "itself".
- * 3. The transmit and receive exchange ids are obtained.
- * 4. The receive exchange id is posted.
- * 5. A new els loopback event is created.
- * 6. The command and response iocbs are allocated.
- * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
- *
- * This function is meant to be called n times while the port is in loopback
- * so it is the apps responsibility to issue a reset to take the port out
- * of loopback mode.
- **/
- static int
- lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct lpfc_bsg_event *evt;
- struct event_data *evdat;
- struct lpfc_sli *psli = &phba->sli;
- uint32_t size;
- uint32_t full_size;
- size_t segment_len = 0, segment_offset = 0, current_offset = 0;
- uint16_t rpi = 0;
- struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
- IOCB_t *cmd, *rsp = NULL;
- struct lpfc_sli_ct_request *ctreq;
- struct lpfc_dmabuf *txbmp;
- struct ulp_bde64 *txbpl = NULL;
- struct lpfc_dmabufext *txbuffer = NULL;
- struct list_head head;
- struct lpfc_dmabuf *curr;
- uint16_t txxri = 0, rxxri;
- uint32_t num_bde;
- uint8_t *ptr = NULL, *rx_databuf = NULL;
- int rc = 0;
- int time_left;
- int iocb_stat = IOCB_SUCCESS;
- unsigned long flags;
- void *dataout = NULL;
- uint32_t total_mem;
- /* in case no data is returned return just the return code */
- job->reply->reply_payload_rcv_len = 0;
- if (job->request_len <
- sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2739 Received DIAG TEST request below minimum "
- "size\n");
- rc = -EINVAL;
- goto loopback_test_exit;
- }
- if (job->request_payload.payload_len !=
- job->reply_payload.payload_len) {
- rc = -EINVAL;
- goto loopback_test_exit;
- }
- if ((phba->link_state == LPFC_HBA_ERROR) ||
- (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
- (!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
- rc = -EACCES;
- goto loopback_test_exit;
- }
- if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
- rc = -EACCES;
- goto loopback_test_exit;
- }
- size = job->request_payload.payload_len;
- full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
- if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
- rc = -ERANGE;
- goto loopback_test_exit;
- }
- if (full_size >= BUF_SZ_4K) {
- /*
- * Allocate memory for ioctl data. If buffer is bigger than 64k,
- * then we allocate 64k and re-use that buffer over and over to
- * xfer the whole block. This is because Linux kernel has a
- * problem allocating more than 120k of kernel space memory. Saw
- * problem with GET_FCPTARGETMAPPING...
- */
- if (size <= (64 * 1024))
- total_mem = full_size;
- else
- total_mem = 64 * 1024;
- } else
- /* Allocate memory for ioctl data */
- total_mem = BUF_SZ_4K;
- dataout = kmalloc(total_mem, GFP_KERNEL);
- if (dataout == NULL) {
- rc = -ENOMEM;
- goto loopback_test_exit;
- }
- ptr = dataout;
- ptr += ELX_LOOPBACK_HEADER_SZ;
- sg_copy_to_buffer(job->request_payload.sg_list,
- job->request_payload.sg_cnt,
- ptr, size);
- rc = lpfcdiag_loop_self_reg(phba, &rpi);
- if (rc)
- goto loopback_test_exit;
- if (phba->sli_rev < LPFC_SLI_REV4) {
- rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
- if (rc) {
- lpfcdiag_loop_self_unreg(phba, rpi);
- goto loopback_test_exit;
- }
- rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
- if (rc) {
- lpfcdiag_loop_self_unreg(phba, rpi);
- goto loopback_test_exit;
- }
- }
- evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
- SLI_CT_ELX_LOOPBACK);
- if (!evt) {
- lpfcdiag_loop_self_unreg(phba, rpi);
- rc = -ENOMEM;
- goto loopback_test_exit;
- }
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_add(&evt->node, &phba->ct_ev_waiters);
- lpfc_bsg_event_ref(evt);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- cmdiocbq = lpfc_sli_get_iocbq(phba);
- if (phba->sli_rev < LPFC_SLI_REV4)
- rspiocbq = lpfc_sli_get_iocbq(phba);
- txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (txbmp) {
- txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
- if (txbmp->virt) {
- INIT_LIST_HEAD(&txbmp->list);
- txbpl = (struct ulp_bde64 *) txbmp->virt;
- txbuffer = diag_cmd_data_alloc(phba,
- txbpl, full_size, 0);
- }
- }
- if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
- rc = -ENOMEM;
- goto err_loopback_test_exit;
- }
- if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
- rc = -ENOMEM;
- goto err_loopback_test_exit;
- }
- cmd = &cmdiocbq->iocb;
- if (phba->sli_rev < LPFC_SLI_REV4)
- rsp = &rspiocbq->iocb;
- INIT_LIST_HEAD(&head);
- list_add_tail(&head, &txbuffer->dma.list);
- list_for_each_entry(curr, &head, list) {
- segment_len = ((struct lpfc_dmabufext *)curr)->size;
- if (current_offset == 0) {
- ctreq = curr->virt;
- memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
- ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
- ctreq->RevisionId.bits.InId = 0;
- ctreq->FsType = SLI_CT_ELX_LOOPBACK;
- ctreq->FsSubType = 0;
- ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
- ctreq->CommandResponse.bits.Size = size;
- segment_offset = ELX_LOOPBACK_HEADER_SZ;
- } else
- segment_offset = 0;
- BUG_ON(segment_offset >= segment_len);
- memcpy(curr->virt + segment_offset,
- ptr + current_offset,
- segment_len - segment_offset);
- current_offset += segment_len - segment_offset;
- BUG_ON(current_offset > size);
- }
- list_del(&head);
- /* Build the XMIT_SEQUENCE iocb */
- num_bde = (uint32_t)txbuffer->flag;
- cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
- cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys);
- cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
- cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64));
- cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
- cmd->un.xseq64.w5.hcsw.Dfctl = 0;
- cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
- cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
- cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
- cmd->ulpBdeCount = 1;
- cmd->ulpLe = 1;
- cmd->ulpClass = CLASS3;
- if (phba->sli_rev < LPFC_SLI_REV4) {
- cmd->ulpContext = txxri;
- } else {
- cmd->un.xseq64.bdl.ulpIoTag32 = 0;
- cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi];
- cmdiocbq->context3 = txbmp;
- cmdiocbq->sli4_xritag = NO_XRI;
- cmd->unsli3.rcvsli3.ox_id = 0xffff;
- }
- cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
- cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK;
- cmdiocbq->vport = phba->pport;
- cmdiocbq->iocb_cmpl = NULL;
- iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
- rspiocbq, (phba->fc_ratov * 2) +
- LPFC_DRVR_TIMEOUT);
- if ((iocb_stat != IOCB_SUCCESS) ||
- ((phba->sli_rev < LPFC_SLI_REV4) &&
- (rsp->ulpStatus != IOSTAT_SUCCESS))) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "3126 Failed loopback test issue iocb: "
- "iocb_stat:x%x\n", iocb_stat);
- rc = -EIO;
- goto err_loopback_test_exit;
- }
- evt->waiting = 1;
- time_left = wait_event_interruptible_timeout(
- evt->wq, !list_empty(&evt->events_to_see),
- msecs_to_jiffies(1000 *
- ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
- evt->waiting = 0;
- if (list_empty(&evt->events_to_see)) {
- rc = (time_left) ? -EINTR : -ETIMEDOUT;
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "3125 Not receiving unsolicited event, "
- "rc:x%x\n", rc);
- } else {
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- list_move(evt->events_to_see.prev, &evt->events_to_get);
- evdat = list_entry(evt->events_to_get.prev,
- typeof(*evdat), node);
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- rx_databuf = evdat->data;
- if (evdat->len != full_size) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "1603 Loopback test did not receive expected "
- "data length. actual length 0x%x expected "
- "length 0x%x\n",
- evdat->len, full_size);
- rc = -EIO;
- } else if (rx_databuf == NULL)
- rc = -EIO;
- else {
- rc = IOCB_SUCCESS;
- /* skip over elx loopback header */
- rx_databuf += ELX_LOOPBACK_HEADER_SZ;
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- rx_databuf, size);
- job->reply->reply_payload_rcv_len = size;
- }
- }
- err_loopback_test_exit:
- lpfcdiag_loop_self_unreg(phba, rpi);
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- lpfc_bsg_event_unref(evt); /* release ref */
- lpfc_bsg_event_unref(evt); /* delete */
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT))
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- if (rspiocbq != NULL)
- lpfc_sli_release_iocbq(phba, rspiocbq);
- if (txbmp != NULL) {
- if (txbpl != NULL) {
- if (txbuffer != NULL)
- diag_cmd_data_free(phba, txbuffer);
- lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
- }
- kfree(txbmp);
- }
- loopback_test_exit:
- kfree(dataout);
- /* make error code available to userspace */
- job->reply->result = rc;
- job->dd_data = NULL;
- /* complete the job back to userspace if no error */
- if (rc == IOCB_SUCCESS)
- job->job_done(job);
- return rc;
- }
- /**
- * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
- * @job: GET_DFC_REV fc_bsg_job
- **/
- static int
- lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct get_mgmt_rev_reply *event_reply;
- int rc = 0;
- if (job->request_len <
- sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2740 Received GET_DFC_REV request below "
- "minimum size\n");
- rc = -EINVAL;
- goto job_error;
- }
- event_reply = (struct get_mgmt_rev_reply *)
- job->reply->reply_data.vendor_reply.vendor_rsp;
- if (job->reply_len <
- sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2741 Received GET_DFC_REV reply below "
- "minimum size\n");
- rc = -EINVAL;
- goto job_error;
- }
- event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
- event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
- job_error:
- job->reply->result = rc;
- if (rc == 0)
- job->job_done(job);
- return rc;
- }
- /**
- * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler
- * @phba: Pointer to HBA context object.
- * @pmboxq: Pointer to mailbox command.
- *
- * This is completion handler function for mailbox commands issued from
- * lpfc_bsg_issue_mbox function. This function is called by the
- * mailbox event handler function with no lock held. This function
- * will wake up thread waiting on the wait queue pointed by context1
- * of the mailbox.
- **/
- static void
- lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
- {
- struct bsg_job_data *dd_data;
- struct fc_bsg_job *job;
- uint32_t size;
- unsigned long flags;
- uint8_t *pmb, *pmb_buf;
- dd_data = pmboxq->context1;
- /*
- * The outgoing buffer is readily referred from the dma buffer,
- * just need to get header part from mailboxq structure.
- */
- pmb = (uint8_t *)&pmboxq->u.mb;
- pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
- memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
- /* Determine if job has been aborted */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- job = dd_data->set_job;
- if (job) {
- /* Prevent timeout handling from trying to abort job */
- job->dd_data = NULL;
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /* Copy the mailbox data to the job if it is still active */
- if (job) {
- size = job->reply_payload.payload_len;
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- pmb_buf, size);
- }
- dd_data->set_job = NULL;
- mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
- lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers);
- kfree(dd_data);
- /* Complete the job if the job is still active */
- if (job) {
- job->reply->result = 0;
- job->job_done(job);
- }
- return;
- }
- /**
- * lpfc_bsg_check_cmd_access - test for a supported mailbox command
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a mailbox object.
- * @vport: Pointer to a vport object.
- *
- * Some commands require the port to be offline, some may not be called from
- * the application.
- **/
- static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
- MAILBOX_t *mb, struct lpfc_vport *vport)
- {
- /* return negative error values for bsg job */
- switch (mb->mbxCommand) {
- /* Offline only */
- case MBX_INIT_LINK:
- case MBX_DOWN_LINK:
- case MBX_CONFIG_LINK:
- case MBX_CONFIG_RING:
- case MBX_RESET_RING:
- case MBX_UNREG_LOGIN:
- case MBX_CLEAR_LA:
- case MBX_DUMP_CONTEXT:
- case MBX_RUN_DIAGS:
- case MBX_RESTART:
- case MBX_SET_MASK:
- if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2743 Command 0x%x is illegal in on-line "
- "state\n",
- mb->mbxCommand);
- return -EPERM;
- }
- case MBX_WRITE_NV:
- case MBX_WRITE_VPARMS:
- case MBX_LOAD_SM:
- case MBX_READ_NV:
- case MBX_READ_CONFIG:
- case MBX_READ_RCONFIG:
- case MBX_READ_STATUS:
- case MBX_READ_XRI:
- case MBX_READ_REV:
- case MBX_READ_LNK_STAT:
- case MBX_DUMP_MEMORY:
- case MBX_DOWN_LOAD:
- case MBX_UPDATE_CFG:
- case MBX_KILL_BOARD:
- case MBX_READ_TOPOLOGY:
- case MBX_LOAD_AREA:
- case MBX_LOAD_EXP_ROM:
- case MBX_BEACON:
- case MBX_DEL_LD_ENTRY:
- case MBX_SET_DEBUG:
- case MBX_WRITE_WWN:
- case MBX_SLI4_CONFIG:
- case MBX_READ_EVENT_LOG:
- case MBX_READ_EVENT_LOG_STATUS:
- case MBX_WRITE_EVENT_LOG:
- case MBX_PORT_CAPABILITIES:
- case MBX_PORT_IOV_CONTROL:
- case MBX_RUN_BIU_DIAG64:
- break;
- case MBX_SET_VARIABLE:
- lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
- "1226 mbox: set_variable 0x%x, 0x%x\n",
- mb->un.varWords[0],
- mb->un.varWords[1]);
- if ((mb->un.varWords[0] == SETVAR_MLOMNT)
- && (mb->un.varWords[1] == 1)) {
- phba->wait_4_mlo_maint_flg = 1;
- } else if (mb->un.varWords[0] == SETVAR_MLORST) {
- spin_lock_irq(&phba->hbalock);
- phba->link_flag &= ~LS_LOOPBACK_MODE;
- spin_unlock_irq(&phba->hbalock);
- phba->fc_topology = LPFC_TOPOLOGY_PT_PT;
- }
- break;
- case MBX_READ_SPARM64:
- case MBX_REG_LOGIN:
- case MBX_REG_LOGIN64:
- case MBX_CONFIG_PORT:
- case MBX_RUN_BIU_DIAG:
- default:
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2742 Unknown Command 0x%x\n",
- mb->mbxCommand);
- return -EPERM;
- }
- return 0; /* ok */
- }
- /**
- * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session
- * @phba: Pointer to HBA context object.
- *
- * This is routine clean up and reset BSG handling of multi-buffer mbox
- * command session.
- **/
- static void
- lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba)
- {
- if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE)
- return;
- /* free all memory, including dma buffers */
- lpfc_bsg_dma_page_list_free(phba,
- &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
- lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf);
- /* multi-buffer write mailbox command pass-through complete */
- memset((char *)&phba->mbox_ext_buf_ctx, 0,
- sizeof(struct lpfc_mbox_ext_buf_ctx));
- INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
- return;
- }
- /**
- * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl
- * @phba: Pointer to HBA context object.
- * @pmboxq: Pointer to mailbox command.
- *
- * This is routine handles BSG job for mailbox commands completions with
- * multiple external buffers.
- **/
- static struct fc_bsg_job *
- lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
- {
- struct bsg_job_data *dd_data;
- struct fc_bsg_job *job;
- uint8_t *pmb, *pmb_buf;
- unsigned long flags;
- uint32_t size;
- int rc = 0;
- struct lpfc_dmabuf *dmabuf;
- struct lpfc_sli_config_mbox *sli_cfg_mbx;
- uint8_t *pmbx;
- dd_data = pmboxq->context1;
- /* Determine if job has been aborted */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- job = dd_data->set_job;
- if (job) {
- /* Prevent timeout handling from trying to abort job */
- job->dd_data = NULL;
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /*
- * The outgoing buffer is readily referred from the dma buffer,
- * just need to get header part from mailboxq structure.
- */
- pmb = (uint8_t *)&pmboxq->u.mb;
- pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
- /* Copy the byte swapped response mailbox back to the user */
- memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
- /* if there is any non-embedded extended data copy that too */
- dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
- sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
- if (!bsg_bf_get(lpfc_mbox_hdr_emb,
- &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
- pmbx = (uint8_t *)dmabuf->virt;
- /* byte swap the extended data following the mailbox command */
- lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
- &pmbx[sizeof(MAILBOX_t)],
- sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
- }
- /* Complete the job if the job is still active */
- if (job) {
- size = job->reply_payload.payload_len;
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- pmb_buf, size);
- /* result for successful */
- job->reply->result = 0;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2937 SLI_CONFIG ext-buffer maibox command "
- "(x%x/x%x) complete bsg job done, bsize:%d\n",
- phba->mbox_ext_buf_ctx.nembType,
- phba->mbox_ext_buf_ctx.mboxType, size);
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba,
- phba->mbox_ext_buf_ctx.nembType,
- phba->mbox_ext_buf_ctx.mboxType,
- dma_ebuf, sta_pos_addr,
- phba->mbox_ext_buf_ctx.mbx_dmabuf, 0);
- } else {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2938 SLI_CONFIG ext-buffer maibox "
- "command (x%x/x%x) failure, rc:x%x\n",
- phba->mbox_ext_buf_ctx.nembType,
- phba->mbox_ext_buf_ctx.mboxType, rc);
- }
- /* state change */
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE;
- kfree(dd_data);
- return job;
- }
- /**
- * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox
- * @phba: Pointer to HBA context object.
- * @pmboxq: Pointer to mailbox command.
- *
- * This is completion handler function for mailbox read commands with multiple
- * external buffers.
- **/
- static void
- lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
- {
- struct fc_bsg_job *job;
- job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
- /* handle the BSG job with mailbox command */
- if (!job)
- pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2939 SLI_CONFIG ext-buffer rd maibox command "
- "complete, ctxState:x%x, mbxStatus:x%x\n",
- phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
- if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1)
- lpfc_bsg_mbox_ext_session_reset(phba);
- /* free base driver mailbox structure memory */
- mempool_free(pmboxq, phba->mbox_mem_pool);
- /* if the job is still active, call job done */
- if (job)
- job->job_done(job);
- return;
- }
- /**
- * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox
- * @phba: Pointer to HBA context object.
- * @pmboxq: Pointer to mailbox command.
- *
- * This is completion handler function for mailbox write commands with multiple
- * external buffers.
- **/
- static void
- lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
- {
- struct fc_bsg_job *job;
- job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
- /* handle the BSG job with the mailbox command */
- if (!job)
- pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2940 SLI_CONFIG ext-buffer wr maibox command "
- "complete, ctxState:x%x, mbxStatus:x%x\n",
- phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
- /* free all memory, including dma buffers */
- mempool_free(pmboxq, phba->mbox_mem_pool);
- lpfc_bsg_mbox_ext_session_reset(phba);
- /* if the job is still active, call job done */
- if (job)
- job->job_done(job);
- return;
- }
- static void
- lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp,
- uint32_t index, struct lpfc_dmabuf *mbx_dmabuf,
- struct lpfc_dmabuf *ext_dmabuf)
- {
- struct lpfc_sli_config_mbox *sli_cfg_mbx;
- /* pointer to the start of mailbox command */
- sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt;
- if (nemb_tp == nemb_mse) {
- if (index == 0) {
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_hi =
- putPaddrHigh(mbx_dmabuf->phys +
- sizeof(MAILBOX_t));
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_lo =
- putPaddrLow(mbx_dmabuf->phys +
- sizeof(MAILBOX_t));
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2943 SLI_CONFIG(mse)[%d], "
- "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
- index,
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].buf_len,
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_hi,
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_lo);
- } else {
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_hi =
- putPaddrHigh(ext_dmabuf->phys);
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_lo =
- putPaddrLow(ext_dmabuf->phys);
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2944 SLI_CONFIG(mse)[%d], "
- "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
- index,
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].buf_len,
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_hi,
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[index].pa_lo);
- }
- } else {
- if (index == 0) {
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_hi =
- putPaddrHigh(mbx_dmabuf->phys +
- sizeof(MAILBOX_t));
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_lo =
- putPaddrLow(mbx_dmabuf->phys +
- sizeof(MAILBOX_t));
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3007 SLI_CONFIG(hbd)[%d], "
- "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
- index,
- bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
- &sli_cfg_mbx->un.
- sli_config_emb1_subsys.hbd[index]),
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_hi,
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_lo);
- } else {
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_hi =
- putPaddrHigh(ext_dmabuf->phys);
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_lo =
- putPaddrLow(ext_dmabuf->phys);
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3008 SLI_CONFIG(hbd)[%d], "
- "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
- index,
- bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
- &sli_cfg_mbx->un.
- sli_config_emb1_subsys.hbd[index]),
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_hi,
- sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[index].pa_lo);
- }
- }
- return;
- }
- /**
- * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a BSG mailbox object.
- * @nemb_tp: Enumerate of non-embedded mailbox command type.
- * @dmabuff: Pointer to a DMA buffer descriptor.
- *
- * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with
- * non-embedded external bufffers.
- **/
- static int
- lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
- enum nemb_type nemb_tp,
- struct lpfc_dmabuf *dmabuf)
- {
- struct lpfc_sli_config_mbox *sli_cfg_mbx;
- struct dfc_mbox_req *mbox_req;
- struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf;
- uint32_t ext_buf_cnt, ext_buf_index;
- struct lpfc_dmabuf *ext_dmabuf = NULL;
- struct bsg_job_data *dd_data = NULL;
- LPFC_MBOXQ_t *pmboxq = NULL;
- MAILBOX_t *pmb;
- uint8_t *pmbx;
- int rc, i;
- mbox_req =
- (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
- /* pointer to the start of mailbox command */
- sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
- if (nemb_tp == nemb_mse) {
- ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
- &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
- if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2945 Handled SLI_CONFIG(mse) rd, "
- "ext_buf_cnt(%d) out of range(%d)\n",
- ext_buf_cnt,
- LPFC_MBX_SLI_CONFIG_MAX_MSE);
- rc = -ERANGE;
- goto job_error;
- }
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2941 Handled SLI_CONFIG(mse) rd, "
- "ext_buf_cnt:%d\n", ext_buf_cnt);
- } else {
- /* sanity check on interface type for support */
- if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
- LPFC_SLI_INTF_IF_TYPE_2) {
- rc = -ENODEV;
- goto job_error;
- }
- /* nemb_tp == nemb_hbd */
- ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
- if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2946 Handled SLI_CONFIG(hbd) rd, "
- "ext_buf_cnt(%d) out of range(%d)\n",
- ext_buf_cnt,
- LPFC_MBX_SLI_CONFIG_MAX_HBD);
- rc = -ERANGE;
- goto job_error;
- }
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2942 Handled SLI_CONFIG(hbd) rd, "
- "ext_buf_cnt:%d\n", ext_buf_cnt);
- }
- /* before dma descriptor setup */
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
- sta_pre_addr, dmabuf, ext_buf_cnt);
- /* reject non-embedded mailbox command with none external buffer */
- if (ext_buf_cnt == 0) {
- rc = -EPERM;
- goto job_error;
- } else if (ext_buf_cnt > 1) {
- /* additional external read buffers */
- for (i = 1; i < ext_buf_cnt; i++) {
- ext_dmabuf = lpfc_bsg_dma_page_alloc(phba);
- if (!ext_dmabuf) {
- rc = -ENOMEM;
- goto job_error;
- }
- list_add_tail(&ext_dmabuf->list,
- &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
- }
- }
- /* bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- rc = -ENOMEM;
- goto job_error;
- }
- /* mailbox command structure for base driver */
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq) {
- rc = -ENOMEM;
- goto job_error;
- }
- memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
- /* for the first external buffer */
- lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
- /* for the rest of external buffer descriptors if any */
- if (ext_buf_cnt > 1) {
- ext_buf_index = 1;
- list_for_each_entry_safe(curr_dmabuf, next_dmabuf,
- &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) {
- lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp,
- ext_buf_index, dmabuf,
- curr_dmabuf);
- ext_buf_index++;
- }
- }
- /* after dma descriptor setup */
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
- sta_pos_addr, dmabuf, ext_buf_cnt);
- /* construct base driver mbox command */
- pmb = &pmboxq->u.mb;
- pmbx = (uint8_t *)dmabuf->virt;
- memcpy(pmb, pmbx, sizeof(*pmb));
- pmb->mbxOwner = OWN_HOST;
- pmboxq->vport = phba->pport;
- /* multi-buffer handling context */
- phba->mbox_ext_buf_ctx.nembType = nemb_tp;
- phba->mbox_ext_buf_ctx.mboxType = mbox_rd;
- phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
- phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
- phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
- phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
- /* callback for multi-buffer read mailbox command */
- pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl;
- /* context fields to callback function */
- pmboxq->context1 = dd_data;
- dd_data->type = TYPE_MBOX;
- dd_data->set_job = job;
- dd_data->context_un.mbox.pmboxq = pmboxq;
- dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
- job->dd_data = dd_data;
- /* state change */
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
- /*
- * Non-embedded mailbox subcommand data gets byte swapped here because
- * the lower level driver code only does the first 64 mailbox words.
- */
- if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
- &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
- (nemb_tp == nemb_mse))
- lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
- &pmbx[sizeof(MAILBOX_t)],
- sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[0].buf_len);
- rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
- if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2947 Issued SLI_CONFIG ext-buffer "
- "maibox command, rc:x%x\n", rc);
- return SLI_CONFIG_HANDLED;
- }
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2948 Failed to issue SLI_CONFIG ext-buffer "
- "maibox command, rc:x%x\n", rc);
- rc = -EPIPE;
- job_error:
- if (pmboxq)
- mempool_free(pmboxq, phba->mbox_mem_pool);
- lpfc_bsg_dma_page_list_free(phba,
- &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
- kfree(dd_data);
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
- return rc;
- }
- /**
- * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a BSG mailbox object.
- * @dmabuff: Pointer to a DMA buffer descriptor.
- *
- * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with
- * non-embedded external bufffers.
- **/
- static int
- lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
- enum nemb_type nemb_tp,
- struct lpfc_dmabuf *dmabuf)
- {
- struct dfc_mbox_req *mbox_req;
- struct lpfc_sli_config_mbox *sli_cfg_mbx;
- uint32_t ext_buf_cnt;
- struct bsg_job_data *dd_data = NULL;
- LPFC_MBOXQ_t *pmboxq = NULL;
- MAILBOX_t *pmb;
- uint8_t *mbx;
- int rc = SLI_CONFIG_NOT_HANDLED, i;
- mbox_req =
- (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
- /* pointer to the start of mailbox command */
- sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
- if (nemb_tp == nemb_mse) {
- ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
- &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
- if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2953 Failed SLI_CONFIG(mse) wr, "
- "ext_buf_cnt(%d) out of range(%d)\n",
- ext_buf_cnt,
- LPFC_MBX_SLI_CONFIG_MAX_MSE);
- return -ERANGE;
- }
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2949 Handled SLI_CONFIG(mse) wr, "
- "ext_buf_cnt:%d\n", ext_buf_cnt);
- } else {
- /* sanity check on interface type for support */
- if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
- LPFC_SLI_INTF_IF_TYPE_2)
- return -ENODEV;
- /* nemb_tp == nemb_hbd */
- ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
- if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2954 Failed SLI_CONFIG(hbd) wr, "
- "ext_buf_cnt(%d) out of range(%d)\n",
- ext_buf_cnt,
- LPFC_MBX_SLI_CONFIG_MAX_HBD);
- return -ERANGE;
- }
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2950 Handled SLI_CONFIG(hbd) wr, "
- "ext_buf_cnt:%d\n", ext_buf_cnt);
- }
- /* before dma buffer descriptor setup */
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
- sta_pre_addr, dmabuf, ext_buf_cnt);
- if (ext_buf_cnt == 0)
- return -EPERM;
- /* for the first external buffer */
- lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
- /* after dma descriptor setup */
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
- sta_pos_addr, dmabuf, ext_buf_cnt);
- /* log for looking forward */
- for (i = 1; i < ext_buf_cnt; i++) {
- if (nemb_tp == nemb_mse)
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n",
- i, sli_cfg_mbx->un.sli_config_emb0_subsys.
- mse[i].buf_len);
- else
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n",
- i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
- &sli_cfg_mbx->un.sli_config_emb1_subsys.
- hbd[i]));
- }
- /* multi-buffer handling context */
- phba->mbox_ext_buf_ctx.nembType = nemb_tp;
- phba->mbox_ext_buf_ctx.mboxType = mbox_wr;
- phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
- phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
- phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
- phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
- if (ext_buf_cnt == 1) {
- /* bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- rc = -ENOMEM;
- goto job_error;
- }
- /* mailbox command structure for base driver */
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq) {
- rc = -ENOMEM;
- goto job_error;
- }
- memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
- pmb = &pmboxq->u.mb;
- mbx = (uint8_t *)dmabuf->virt;
- memcpy(pmb, mbx, sizeof(*pmb));
- pmb->mbxOwner = OWN_HOST;
- pmboxq->vport = phba->pport;
- /* callback for multi-buffer read mailbox command */
- pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
- /* context fields to callback function */
- pmboxq->context1 = dd_data;
- dd_data->type = TYPE_MBOX;
- dd_data->set_job = job;
- dd_data->context_un.mbox.pmboxq = pmboxq;
- dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx;
- job->dd_data = dd_data;
- /* state change */
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
- rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
- if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2955 Issued SLI_CONFIG ext-buffer "
- "maibox command, rc:x%x\n", rc);
- return SLI_CONFIG_HANDLED;
- }
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2956 Failed to issue SLI_CONFIG ext-buffer "
- "maibox command, rc:x%x\n", rc);
- rc = -EPIPE;
- goto job_error;
- }
- /* wait for additoinal external buffers */
- job->reply->result = 0;
- job->job_done(job);
- return SLI_CONFIG_HANDLED;
- job_error:
- if (pmboxq)
- mempool_free(pmboxq, phba->mbox_mem_pool);
- kfree(dd_data);
- return rc;
- }
- /**
- * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a BSG mailbox object.
- * @dmabuff: Pointer to a DMA buffer descriptor.
- *
- * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded
- * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B
- * with embedded sussystem 0x1 and opcodes with external HBDs.
- **/
- static int
- lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
- struct lpfc_dmabuf *dmabuf)
- {
- struct lpfc_sli_config_mbox *sli_cfg_mbx;
- uint32_t subsys;
- uint32_t opcode;
- int rc = SLI_CONFIG_NOT_HANDLED;
- /* state change on new multi-buffer pass-through mailbox command */
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
- sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
- if (!bsg_bf_get(lpfc_mbox_hdr_emb,
- &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
- subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys,
- &sli_cfg_mbx->un.sli_config_emb0_subsys);
- opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode,
- &sli_cfg_mbx->un.sli_config_emb0_subsys);
- if (subsys == SLI_CONFIG_SUBSYS_FCOE) {
- switch (opcode) {
- case FCOE_OPCODE_READ_FCF:
- case FCOE_OPCODE_GET_DPORT_RESULTS:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2957 Handled SLI_CONFIG "
- "subsys_fcoe, opcode:x%x\n",
- opcode);
- rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
- nemb_mse, dmabuf);
- break;
- case FCOE_OPCODE_ADD_FCF:
- case FCOE_OPCODE_SET_DPORT_MODE:
- case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2958 Handled SLI_CONFIG "
- "subsys_fcoe, opcode:x%x\n",
- opcode);
- rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
- nemb_mse, dmabuf);
- break;
- default:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2959 Reject SLI_CONFIG "
- "subsys_fcoe, opcode:x%x\n",
- opcode);
- rc = -EPERM;
- break;
- }
- } else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
- switch (opcode) {
- case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
- case COMN_OPCODE_GET_CNTL_ATTRIBUTES:
- case COMN_OPCODE_GET_PROFILE_CONFIG:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3106 Handled SLI_CONFIG "
- "subsys_comn, opcode:x%x\n",
- opcode);
- rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
- nemb_mse, dmabuf);
- break;
- default:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "3107 Reject SLI_CONFIG "
- "subsys_comn, opcode:x%x\n",
- opcode);
- rc = -EPERM;
- break;
- }
- } else {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2977 Reject SLI_CONFIG "
- "subsys:x%d, opcode:x%x\n",
- subsys, opcode);
- rc = -EPERM;
- }
- } else {
- subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
- &sli_cfg_mbx->un.sli_config_emb1_subsys);
- opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode,
- &sli_cfg_mbx->un.sli_config_emb1_subsys);
- if (subsys == SLI_CONFIG_SUBSYS_COMN) {
- switch (opcode) {
- case COMN_OPCODE_READ_OBJECT:
- case COMN_OPCODE_READ_OBJECT_LIST:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2960 Handled SLI_CONFIG "
- "subsys_comn, opcode:x%x\n",
- opcode);
- rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
- nemb_hbd, dmabuf);
- break;
- case COMN_OPCODE_WRITE_OBJECT:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2961 Handled SLI_CONFIG "
- "subsys_comn, opcode:x%x\n",
- opcode);
- rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
- nemb_hbd, dmabuf);
- break;
- default:
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2962 Not handled SLI_CONFIG "
- "subsys_comn, opcode:x%x\n",
- opcode);
- rc = SLI_CONFIG_NOT_HANDLED;
- break;
- }
- } else {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2978 Not handled SLI_CONFIG "
- "subsys:x%d, opcode:x%x\n",
- subsys, opcode);
- rc = SLI_CONFIG_NOT_HANDLED;
- }
- }
- /* state reset on not handled new multi-buffer mailbox command */
- if (rc != SLI_CONFIG_HANDLED)
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
- return rc;
- }
- /**
- * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers
- * @phba: Pointer to HBA context object.
- *
- * This routine is for requesting to abort a pass-through mailbox command with
- * multiple external buffers due to error condition.
- **/
- static void
- lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba)
- {
- if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
- else
- lpfc_bsg_mbox_ext_session_reset(phba);
- return;
- }
- /**
- * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer
- * @phba: Pointer to HBA context object.
- * @dmabuf: Pointer to a DMA buffer descriptor.
- *
- * This routine extracts the next mailbox read external buffer back to
- * user space through BSG.
- **/
- static int
- lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job)
- {
- struct lpfc_sli_config_mbox *sli_cfg_mbx;
- struct lpfc_dmabuf *dmabuf;
- uint8_t *pbuf;
- uint32_t size;
- uint32_t index;
- index = phba->mbox_ext_buf_ctx.seqNum;
- phba->mbox_ext_buf_ctx.seqNum++;
- sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
- phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
- if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
- size = bsg_bf_get(lpfc_mbox_sli_config_mse_len,
- &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]);
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2963 SLI_CONFIG (mse) ext-buffer rd get "
- "buffer[%d], size:%d\n", index, size);
- } else {
- size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
- &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]);
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2964 SLI_CONFIG (hbd) ext-buffer rd get "
- "buffer[%d], size:%d\n", index, size);
- }
- if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list))
- return -EPIPE;
- dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list,
- struct lpfc_dmabuf, list);
- list_del_init(&dmabuf->list);
- /* after dma buffer descriptor setup */
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
- mbox_rd, dma_ebuf, sta_pos_addr,
- dmabuf, index);
- pbuf = (uint8_t *)dmabuf->virt;
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- pbuf, size);
- lpfc_bsg_dma_page_free(phba, dmabuf);
- if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2965 SLI_CONFIG (hbd) ext-buffer rd mbox "
- "command session done\n");
- lpfc_bsg_mbox_ext_session_reset(phba);
- }
- job->reply->result = 0;
- job->job_done(job);
- return SLI_CONFIG_HANDLED;
- }
- /**
- * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer
- * @phba: Pointer to HBA context object.
- * @dmabuf: Pointer to a DMA buffer descriptor.
- *
- * This routine sets up the next mailbox read external buffer obtained
- * from user space through BSG.
- **/
- static int
- lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job,
- struct lpfc_dmabuf *dmabuf)
- {
- struct bsg_job_data *dd_data = NULL;
- LPFC_MBOXQ_t *pmboxq = NULL;
- MAILBOX_t *pmb;
- enum nemb_type nemb_tp;
- uint8_t *pbuf;
- uint32_t size;
- uint32_t index;
- int rc;
- index = phba->mbox_ext_buf_ctx.seqNum;
- phba->mbox_ext_buf_ctx.seqNum++;
- nemb_tp = phba->mbox_ext_buf_ctx.nembType;
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- rc = -ENOMEM;
- goto job_error;
- }
- pbuf = (uint8_t *)dmabuf->virt;
- size = job->request_payload.payload_len;
- sg_copy_to_buffer(job->request_payload.sg_list,
- job->request_payload.sg_cnt,
- pbuf, size);
- if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2966 SLI_CONFIG (mse) ext-buffer wr set "
- "buffer[%d], size:%d\n",
- phba->mbox_ext_buf_ctx.seqNum, size);
- } else {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2967 SLI_CONFIG (hbd) ext-buffer wr set "
- "buffer[%d], size:%d\n",
- phba->mbox_ext_buf_ctx.seqNum, size);
- }
- /* set up external buffer descriptor and add to external buffer list */
- lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index,
- phba->mbox_ext_buf_ctx.mbx_dmabuf,
- dmabuf);
- list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
- /* after write dma buffer */
- lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
- mbox_wr, dma_ebuf, sta_pos_addr,
- dmabuf, index);
- if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2968 SLI_CONFIG ext-buffer wr all %d "
- "ebuffers received\n",
- phba->mbox_ext_buf_ctx.numBuf);
- /* mailbox command structure for base driver */
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq) {
- rc = -ENOMEM;
- goto job_error;
- }
- memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
- pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
- pmb = &pmboxq->u.mb;
- memcpy(pmb, pbuf, sizeof(*pmb));
- pmb->mbxOwner = OWN_HOST;
- pmboxq->vport = phba->pport;
- /* callback for multi-buffer write mailbox command */
- pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
- /* context fields to callback function */
- pmboxq->context1 = dd_data;
- dd_data->type = TYPE_MBOX;
- dd_data->set_job = job;
- dd_data->context_un.mbox.pmboxq = pmboxq;
- dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf;
- job->dd_data = dd_data;
- /* state change */
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
- rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
- if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2969 Issued SLI_CONFIG ext-buffer "
- "maibox command, rc:x%x\n", rc);
- return SLI_CONFIG_HANDLED;
- }
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2970 Failed to issue SLI_CONFIG ext-buffer "
- "maibox command, rc:x%x\n", rc);
- rc = -EPIPE;
- goto job_error;
- }
- /* wait for additoinal external buffers */
- job->reply->result = 0;
- job->job_done(job);
- return SLI_CONFIG_HANDLED;
- job_error:
- lpfc_bsg_dma_page_free(phba, dmabuf);
- kfree(dd_data);
- return rc;
- }
- /**
- * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a BSG mailbox object.
- * @dmabuff: Pointer to a DMA buffer descriptor.
- *
- * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox
- * command with multiple non-embedded external buffers.
- **/
- static int
- lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job,
- struct lpfc_dmabuf *dmabuf)
- {
- int rc;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2971 SLI_CONFIG buffer (type:x%x)\n",
- phba->mbox_ext_buf_ctx.mboxType);
- if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) {
- if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2972 SLI_CONFIG rd buffer state "
- "mismatch:x%x\n",
- phba->mbox_ext_buf_ctx.state);
- lpfc_bsg_mbox_ext_abort(phba);
- return -EPIPE;
- }
- rc = lpfc_bsg_read_ebuf_get(phba, job);
- if (rc == SLI_CONFIG_HANDLED)
- lpfc_bsg_dma_page_free(phba, dmabuf);
- } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */
- if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) {
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2973 SLI_CONFIG wr buffer state "
- "mismatch:x%x\n",
- phba->mbox_ext_buf_ctx.state);
- lpfc_bsg_mbox_ext_abort(phba);
- return -EPIPE;
- }
- rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf);
- }
- return rc;
- }
- /**
- * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a BSG mailbox object.
- * @dmabuff: Pointer to a DMA buffer descriptor.
- *
- * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG
- * (0x9B) mailbox commands and external buffers.
- **/
- static int
- lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
- struct lpfc_dmabuf *dmabuf)
- {
- struct dfc_mbox_req *mbox_req;
- int rc = SLI_CONFIG_NOT_HANDLED;
- mbox_req =
- (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
- /* mbox command with/without single external buffer */
- if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0)
- return rc;
- /* mbox command and first external buffer */
- if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) {
- if (mbox_req->extSeqNum == 1) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2974 SLI_CONFIG mailbox: tag:%d, "
- "seq:%d\n", mbox_req->extMboxTag,
- mbox_req->extSeqNum);
- rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf);
- return rc;
- } else
- goto sli_cfg_ext_error;
- }
- /*
- * handle additional external buffers
- */
- /* check broken pipe conditions */
- if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag)
- goto sli_cfg_ext_error;
- if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf)
- goto sli_cfg_ext_error;
- if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1)
- goto sli_cfg_ext_error;
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2975 SLI_CONFIG mailbox external buffer: "
- "extSta:x%x, tag:%d, seq:%d\n",
- phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag,
- mbox_req->extSeqNum);
- rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf);
- return rc;
- sli_cfg_ext_error:
- /* all other cases, broken pipe */
- lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
- "2976 SLI_CONFIG mailbox broken pipe: "
- "ctxSta:x%x, ctxNumBuf:%d "
- "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n",
- phba->mbox_ext_buf_ctx.state,
- phba->mbox_ext_buf_ctx.numBuf,
- phba->mbox_ext_buf_ctx.mbxTag,
- phba->mbox_ext_buf_ctx.seqNum,
- mbox_req->extMboxTag, mbox_req->extSeqNum);
- lpfc_bsg_mbox_ext_session_reset(phba);
- return -EPIPE;
- }
- /**
- * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
- * @phba: Pointer to HBA context object.
- * @mb: Pointer to a mailbox object.
- * @vport: Pointer to a vport object.
- *
- * Allocate a tracking object, mailbox command memory, get a mailbox
- * from the mailbox pool, copy the caller mailbox command.
- *
- * If offline and the sli is active we need to poll for the command (port is
- * being reset) and com-plete the job, otherwise issue the mailbox command and
- * let our completion handler finish the command.
- **/
- static int
- lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
- struct lpfc_vport *vport)
- {
- LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */
- MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */
- /* a 4k buffer to hold the mb and extended data from/to the bsg */
- uint8_t *pmbx = NULL;
- struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */
- struct lpfc_dmabuf *dmabuf = NULL;
- struct dfc_mbox_req *mbox_req;
- struct READ_EVENT_LOG_VAR *rdEventLog;
- uint32_t transmit_length, receive_length, mode;
- struct lpfc_mbx_sli4_config *sli4_config;
- struct lpfc_mbx_nembed_cmd *nembed_sge;
- struct ulp_bde64 *bde;
- uint8_t *ext = NULL;
- int rc = 0;
- uint8_t *from;
- uint32_t size;
- /* in case no data is transferred */
- job->reply->reply_payload_rcv_len = 0;
- /* sanity check to protect driver */
- if (job->reply_payload.payload_len > BSG_MBOX_SIZE ||
- job->request_payload.payload_len > BSG_MBOX_SIZE) {
- rc = -ERANGE;
- goto job_done;
- }
- /*
- * Don't allow mailbox commands to be sent when blocked or when in
- * the middle of discovery
- */
- if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
- rc = -EAGAIN;
- goto job_done;
- }
- mbox_req =
- (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
- /* check if requested extended data lengths are valid */
- if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) ||
- (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) {
- rc = -ERANGE;
- goto job_done;
- }
- dmabuf = lpfc_bsg_dma_page_alloc(phba);
- if (!dmabuf || !dmabuf->virt) {
- rc = -ENOMEM;
- goto job_done;
- }
- /* Get the mailbox command or external buffer from BSG */
- pmbx = (uint8_t *)dmabuf->virt;
- size = job->request_payload.payload_len;
- sg_copy_to_buffer(job->request_payload.sg_list,
- job->request_payload.sg_cnt, pmbx, size);
- /* Handle possible SLI_CONFIG with non-embedded payloads */
- if (phba->sli_rev == LPFC_SLI_REV4) {
- rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf);
- if (rc == SLI_CONFIG_HANDLED)
- goto job_cont;
- if (rc)
- goto job_done;
- /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */
- }
- rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport);
- if (rc != 0)
- goto job_done; /* must be negative */
- /* allocate our bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2727 Failed allocation of dd_data\n");
- rc = -ENOMEM;
- goto job_done;
- }
- pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmboxq) {
- rc = -ENOMEM;
- goto job_done;
- }
- memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
- pmb = &pmboxq->u.mb;
- memcpy(pmb, pmbx, sizeof(*pmb));
- pmb->mbxOwner = OWN_HOST;
- pmboxq->vport = vport;
- /* If HBA encountered an error attention, allow only DUMP
- * or RESTART mailbox commands until the HBA is restarted.
- */
- if (phba->pport->stopped &&
- pmb->mbxCommand != MBX_DUMP_MEMORY &&
- pmb->mbxCommand != MBX_RESTART &&
- pmb->mbxCommand != MBX_WRITE_VPARMS &&
- pmb->mbxCommand != MBX_WRITE_WWN)
- lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
- "2797 mbox: Issued mailbox cmd "
- "0x%x while in stopped state.\n",
- pmb->mbxCommand);
- /* extended mailbox commands will need an extended buffer */
- if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
- from = pmbx;
- ext = from + sizeof(MAILBOX_t);
- pmboxq->context2 = ext;
- pmboxq->in_ext_byte_len =
- mbox_req->inExtWLen * sizeof(uint32_t);
- pmboxq->out_ext_byte_len =
- mbox_req->outExtWLen * sizeof(uint32_t);
- pmboxq->mbox_offset_word = mbox_req->mbOffset;
- }
- /* biu diag will need a kernel buffer to transfer the data
- * allocate our own buffer and setup the mailbox command to
- * use ours
- */
- if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) {
- transmit_length = pmb->un.varWords[1];
- receive_length = pmb->un.varWords[4];
- /* transmit length cannot be greater than receive length or
- * mailbox extension size
- */
- if ((transmit_length > receive_length) ||
- (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
- rc = -ERANGE;
- goto job_done;
- }
- pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh =
- putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t));
- pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow =
- putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t));
- pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh =
- putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)
- + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
- pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow =
- putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)
- + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
- } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) {
- rdEventLog = &pmb->un.varRdEventLog;
- receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize;
- mode = bf_get(lpfc_event_log, rdEventLog);
- /* receive length cannot be greater than mailbox
- * extension size
- */
- if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
- rc = -ERANGE;
- goto job_done;
- }
- /* mode zero uses a bde like biu diags command */
- if (mode == 0) {
- pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
- + sizeof(MAILBOX_t));
- pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
- + sizeof(MAILBOX_t));
- }
- } else if (phba->sli_rev == LPFC_SLI_REV4) {
- /* Let type 4 (well known data) through because the data is
- * returned in varwords[4-8]
- * otherwise check the recieve length and fetch the buffer addr
- */
- if ((pmb->mbxCommand == MBX_DUMP_MEMORY) &&
- (pmb->un.varDmp.type != DMP_WELL_KNOWN)) {
- /* rebuild the command for sli4 using our own buffers
- * like we do for biu diags
- */
- receive_length = pmb->un.varWords[2];
- /* receive length cannot be greater than mailbox
- * extension size
- */
- if (receive_length == 0) {
- rc = -ERANGE;
- goto job_done;
- }
- pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
- + sizeof(MAILBOX_t));
- pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
- + sizeof(MAILBOX_t));
- } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) &&
- pmb->un.varUpdateCfg.co) {
- bde = (struct ulp_bde64 *)&pmb->un.varWords[4];
- /* bde size cannot be greater than mailbox ext size */
- if (bde->tus.f.bdeSize >
- BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
- rc = -ERANGE;
- goto job_done;
- }
- bde->addrHigh = putPaddrHigh(dmabuf->phys
- + sizeof(MAILBOX_t));
- bde->addrLow = putPaddrLow(dmabuf->phys
- + sizeof(MAILBOX_t));
- } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) {
- /* Handling non-embedded SLI_CONFIG mailbox command */
- sli4_config = &pmboxq->u.mqe.un.sli4_config;
- if (!bf_get(lpfc_mbox_hdr_emb,
- &sli4_config->header.cfg_mhdr)) {
- /* rebuild the command for sli4 using our
- * own buffers like we do for biu diags
- */
- nembed_sge = (struct lpfc_mbx_nembed_cmd *)
- &pmb->un.varWords[0];
- receive_length = nembed_sge->sge[0].length;
- /* receive length cannot be greater than
- * mailbox extension size
- */
- if ((receive_length == 0) ||
- (receive_length >
- BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
- rc = -ERANGE;
- goto job_done;
- }
- nembed_sge->sge[0].pa_hi =
- putPaddrHigh(dmabuf->phys
- + sizeof(MAILBOX_t));
- nembed_sge->sge[0].pa_lo =
- putPaddrLow(dmabuf->phys
- + sizeof(MAILBOX_t));
- }
- }
- }
- dd_data->context_un.mbox.dmabuffers = dmabuf;
- /* setup wake call as IOCB callback */
- pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl;
- /* setup context field to pass wait_queue pointer to wake function */
- pmboxq->context1 = dd_data;
- dd_data->type = TYPE_MBOX;
- dd_data->set_job = job;
- dd_data->context_un.mbox.pmboxq = pmboxq;
- dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
- dd_data->context_un.mbox.ext = ext;
- dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset;
- dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen;
- dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen;
- job->dd_data = dd_data;
- if ((vport->fc_flag & FC_OFFLINE_MODE) ||
- (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
- rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
- if (rc != MBX_SUCCESS) {
- rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
- goto job_done;
- }
- /* job finished, copy the data */
- memcpy(pmbx, pmb, sizeof(*pmb));
- job->reply->reply_payload_rcv_len =
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- pmbx, size);
- /* not waiting mbox already done */
- rc = 0;
- goto job_done;
- }
- rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
- if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY))
- return 1; /* job started */
- job_done:
- /* common exit for error or job completed inline */
- if (pmboxq)
- mempool_free(pmboxq, phba->mbox_mem_pool);
- lpfc_bsg_dma_page_free(phba, dmabuf);
- kfree(dd_data);
- job_cont:
- return rc;
- }
- /**
- * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
- * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
- **/
- static int
- lpfc_bsg_mbox_cmd(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct dfc_mbox_req *mbox_req;
- int rc = 0;
- /* mix-and-match backward compatibility */
- job->reply->reply_payload_rcv_len = 0;
- if (job->request_len <
- sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
- lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
- "2737 Mix-and-match backward compatibility "
- "between MBOX_REQ old size:%d and "
- "new request size:%d\n",
- (int)(job->request_len -
- sizeof(struct fc_bsg_request)),
- (int)sizeof(struct dfc_mbox_req));
- mbox_req = (struct dfc_mbox_req *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- mbox_req->extMboxTag = 0;
- mbox_req->extSeqNum = 0;
- }
- rc = lpfc_bsg_issue_mbox(phba, job, vport);
- if (rc == 0) {
- /* job done */
- job->reply->result = 0;
- job->dd_data = NULL;
- job->job_done(job);
- } else if (rc == 1)
- /* job submitted, will complete later*/
- rc = 0; /* return zero, no error */
- else {
- /* some error occurred */
- job->reply->result = rc;
- job->dd_data = NULL;
- }
- return rc;
- }
- /**
- * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler
- * @phba: Pointer to HBA context object.
- * @cmdiocbq: Pointer to command iocb.
- * @rspiocbq: Pointer to response iocb.
- *
- * This function is the completion handler for iocbs issued using
- * lpfc_menlo_cmd function. This function is called by the
- * ring event handler function without any lock held. This function
- * can be called from both worker thread context and interrupt
- * context. This function also can be called from another thread which
- * cleans up the SLI layer objects.
- * This function copies the contents of the response iocb to the
- * response iocb memory object provided by the caller of
- * lpfc_sli_issue_iocb_wait and then wakes up the thread which
- * sleeps for the iocb completion.
- **/
- static void
- lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
- struct lpfc_iocbq *cmdiocbq,
- struct lpfc_iocbq *rspiocbq)
- {
- struct bsg_job_data *dd_data;
- struct fc_bsg_job *job;
- IOCB_t *rsp;
- struct lpfc_dmabuf *bmp, *cmp, *rmp;
- struct lpfc_bsg_menlo *menlo;
- unsigned long flags;
- struct menlo_response *menlo_resp;
- unsigned int rsp_size;
- int rc = 0;
- dd_data = cmdiocbq->context1;
- cmp = cmdiocbq->context2;
- bmp = cmdiocbq->context3;
- menlo = &dd_data->context_un.menlo;
- rmp = menlo->rmp;
- rsp = &rspiocbq->iocb;
- /* Determine if job has been aborted */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- job = dd_data->set_job;
- if (job) {
- /* Prevent timeout handling from trying to abort job */
- job->dd_data = NULL;
- }
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- /* Copy the job data or set the failing status for the job */
- if (job) {
- /* always return the xri, this would be used in the case
- * of a menlo download to allow the data to be sent as a
- * continuation of the exchange.
- */
- menlo_resp = (struct menlo_response *)
- job->reply->reply_data.vendor_reply.vendor_rsp;
- menlo_resp->xri = rsp->ulpContext;
- if (rsp->ulpStatus) {
- if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
- switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
- case IOERR_SEQUENCE_TIMEOUT:
- rc = -ETIMEDOUT;
- break;
- case IOERR_INVALID_RPI:
- rc = -EFAULT;
- break;
- default:
- rc = -EACCES;
- break;
- }
- } else {
- rc = -EACCES;
- }
- } else {
- rsp_size = rsp->un.genreq64.bdl.bdeSize;
- job->reply->reply_payload_rcv_len =
- lpfc_bsg_copy_data(rmp, &job->reply_payload,
- rsp_size, 0);
- }
- }
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- lpfc_free_bsg_buffers(phba, cmp);
- lpfc_free_bsg_buffers(phba, rmp);
- lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
- kfree(bmp);
- kfree(dd_data);
- /* Complete the job if active */
- if (job) {
- job->reply->result = rc;
- job->job_done(job);
- }
- return;
- }
- /**
- * lpfc_menlo_cmd - send an ioctl for menlo hardware
- * @job: fc_bsg_job to handle
- *
- * This function issues a gen request 64 CR ioctl for all menlo cmd requests,
- * all the command completions will return the xri for the command.
- * For menlo data requests a gen request 64 CX is used to continue the exchange
- * supplied in the menlo request header xri field.
- **/
- static int
- lpfc_menlo_cmd(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct lpfc_iocbq *cmdiocbq;
- IOCB_t *cmd;
- int rc = 0;
- struct menlo_command *menlo_cmd;
- struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
- int request_nseg;
- int reply_nseg;
- struct bsg_job_data *dd_data;
- struct ulp_bde64 *bpl = NULL;
- /* in case no data is returned return just the return code */
- job->reply->reply_payload_rcv_len = 0;
- if (job->request_len <
- sizeof(struct fc_bsg_request) +
- sizeof(struct menlo_command)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2784 Received MENLO_CMD request below "
- "minimum size\n");
- rc = -ERANGE;
- goto no_dd_data;
- }
- if (job->reply_len <
- sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2785 Received MENLO_CMD reply below "
- "minimum size\n");
- rc = -ERANGE;
- goto no_dd_data;
- }
- if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2786 Adapter does not support menlo "
- "commands\n");
- rc = -EPERM;
- goto no_dd_data;
- }
- menlo_cmd = (struct menlo_command *)
- job->request->rqst_data.h_vendor.vendor_cmd;
- /* allocate our bsg tracking structure */
- dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
- if (!dd_data) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
- "2787 Failed allocation of dd_data\n");
- rc = -ENOMEM;
- goto no_dd_data;
- }
- bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (!bmp) {
- rc = -ENOMEM;
- goto free_dd;
- }
- bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
- if (!bmp->virt) {
- rc = -ENOMEM;
- goto free_bmp;
- }
- INIT_LIST_HEAD(&bmp->list);
- bpl = (struct ulp_bde64 *)bmp->virt;
- request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
- cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
- 1, bpl, &request_nseg);
- if (!cmp) {
- rc = -ENOMEM;
- goto free_bmp;
- }
- lpfc_bsg_copy_data(cmp, &job->request_payload,
- job->request_payload.payload_len, 1);
- bpl += request_nseg;
- reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
- rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
- bpl, &reply_nseg);
- if (!rmp) {
- rc = -ENOMEM;
- goto free_cmp;
- }
- cmdiocbq = lpfc_sli_get_iocbq(phba);
- if (!cmdiocbq) {
- rc = -ENOMEM;
- goto free_rmp;
- }
- cmd = &cmdiocbq->iocb;
- cmd->un.genreq64.bdl.ulpIoTag32 = 0;
- cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
- cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
- cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
- cmd->un.genreq64.bdl.bdeSize =
- (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
- cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
- cmd->un.genreq64.w5.hcsw.Dfctl = 0;
- cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD;
- cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */
- cmd->ulpBdeCount = 1;
- cmd->ulpClass = CLASS3;
- cmd->ulpOwner = OWN_CHIP;
- cmd->ulpLe = 1; /* Limited Edition */
- cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
- cmdiocbq->vport = phba->pport;
- /* We want the firmware to timeout before we do */
- cmd->ulpTimeout = MENLO_TIMEOUT - 5;
- cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp;
- cmdiocbq->context1 = dd_data;
- cmdiocbq->context2 = cmp;
- cmdiocbq->context3 = bmp;
- if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) {
- cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
- cmd->ulpPU = MENLO_PU; /* 3 */
- cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */
- cmd->ulpContext = MENLO_CONTEXT; /* 0 */
- } else {
- cmd->ulpCommand = CMD_GEN_REQUEST64_CX;
- cmd->ulpPU = 1;
- cmd->un.ulpWord[4] = 0;
- cmd->ulpContext = menlo_cmd->xri;
- }
- dd_data->type = TYPE_MENLO;
- dd_data->set_job = job;
- dd_data->context_un.menlo.cmdiocbq = cmdiocbq;
- dd_data->context_un.menlo.rmp = rmp;
- job->dd_data = dd_data;
- rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
- MENLO_TIMEOUT - 5);
- if (rc == IOCB_SUCCESS)
- return 0; /* done for now */
- lpfc_sli_release_iocbq(phba, cmdiocbq);
- free_rmp:
- lpfc_free_bsg_buffers(phba, rmp);
- free_cmp:
- lpfc_free_bsg_buffers(phba, cmp);
- free_bmp:
- if (bmp->virt)
- lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
- kfree(bmp);
- free_dd:
- kfree(dd_data);
- no_dd_data:
- /* make error code available to userspace */
- job->reply->result = rc;
- job->dd_data = NULL;
- return rc;
- }
- /**
- * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
- * @job: fc_bsg_job to handle
- **/
- static int
- lpfc_bsg_hst_vendor(struct fc_bsg_job *job)
- {
- int command = job->request->rqst_data.h_vendor.vendor_cmd[0];
- int rc;
- switch (command) {
- case LPFC_BSG_VENDOR_SET_CT_EVENT:
- rc = lpfc_bsg_hba_set_event(job);
- break;
- case LPFC_BSG_VENDOR_GET_CT_EVENT:
- rc = lpfc_bsg_hba_get_event(job);
- break;
- case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
- rc = lpfc_bsg_send_mgmt_rsp(job);
- break;
- case LPFC_BSG_VENDOR_DIAG_MODE:
- rc = lpfc_bsg_diag_loopback_mode(job);
- break;
- case LPFC_BSG_VENDOR_DIAG_MODE_END:
- rc = lpfc_sli4_bsg_diag_mode_end(job);
- break;
- case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK:
- rc = lpfc_bsg_diag_loopback_run(job);
- break;
- case LPFC_BSG_VENDOR_LINK_DIAG_TEST:
- rc = lpfc_sli4_bsg_link_diag_test(job);
- break;
- case LPFC_BSG_VENDOR_GET_MGMT_REV:
- rc = lpfc_bsg_get_dfc_rev(job);
- break;
- case LPFC_BSG_VENDOR_MBOX:
- rc = lpfc_bsg_mbox_cmd(job);
- break;
- case LPFC_BSG_VENDOR_MENLO_CMD:
- case LPFC_BSG_VENDOR_MENLO_DATA:
- rc = lpfc_menlo_cmd(job);
- break;
- default:
- rc = -EINVAL;
- job->reply->reply_payload_rcv_len = 0;
- /* make error code available to userspace */
- job->reply->result = rc;
- break;
- }
- return rc;
- }
- /**
- * lpfc_bsg_request - handle a bsg request from the FC transport
- * @job: fc_bsg_job to handle
- **/
- int
- lpfc_bsg_request(struct fc_bsg_job *job)
- {
- uint32_t msgcode;
- int rc;
- msgcode = job->request->msgcode;
- switch (msgcode) {
- case FC_BSG_HST_VENDOR:
- rc = lpfc_bsg_hst_vendor(job);
- break;
- case FC_BSG_RPT_ELS:
- rc = lpfc_bsg_rport_els(job);
- break;
- case FC_BSG_RPT_CT:
- rc = lpfc_bsg_send_mgmt_cmd(job);
- break;
- default:
- rc = -EINVAL;
- job->reply->reply_payload_rcv_len = 0;
- /* make error code available to userspace */
- job->reply->result = rc;
- break;
- }
- return rc;
- }
- /**
- * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
- * @job: fc_bsg_job that has timed out
- *
- * This function just aborts the job's IOCB. The aborted IOCB will return to
- * the waiting function which will handle passing the error back to userspace
- **/
- int
- lpfc_bsg_timeout(struct fc_bsg_job *job)
- {
- struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct lpfc_iocbq *cmdiocb;
- struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
- struct bsg_job_data *dd_data;
- unsigned long flags;
- int rc = 0;
- LIST_HEAD(completions);
- struct lpfc_iocbq *check_iocb, *next_iocb;
- /* if job's driver data is NULL, the command completed or is in the
- * the process of completing. In this case, return status to request
- * so the timeout is retried. This avoids double completion issues
- * and the request will be pulled off the timer queue when the
- * command's completion handler executes. Otherwise, prevent the
- * command's completion handler from executing the job done callback
- * and continue processing to abort the outstanding the command.
- */
- spin_lock_irqsave(&phba->ct_ev_lock, flags);
- dd_data = (struct bsg_job_data *)job->dd_data;
- if (dd_data) {
- dd_data->set_job = NULL;
- job->dd_data = NULL;
- } else {
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- return -EAGAIN;
- }
- switch (dd_data->type) {
- case TYPE_IOCB:
- /* Check to see if IOCB was issued to the port or not. If not,
- * remove it from the txq queue and call cancel iocbs.
- * Otherwise, call abort iotag
- */
- cmdiocb = dd_data->context_un.iocb.cmdiocbq;
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- spin_lock_irqsave(&phba->hbalock, flags);
- /* make sure the I/O abort window is still open */
- if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) {
- spin_unlock_irqrestore(&phba->hbalock, flags);
- return -EAGAIN;
- }
- list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
- list) {
- if (check_iocb == cmdiocb) {
- list_move_tail(&check_iocb->list, &completions);
- break;
- }
- }
- if (list_empty(&completions))
- lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
- spin_unlock_irqrestore(&phba->hbalock, flags);
- if (!list_empty(&completions)) {
- lpfc_sli_cancel_iocbs(phba, &completions,
- IOSTAT_LOCAL_REJECT,
- IOERR_SLI_ABORTED);
- }
- break;
- case TYPE_EVT:
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- break;
- case TYPE_MBOX:
- /* Update the ext buf ctx state if needed */
- if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
- phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- break;
- case TYPE_MENLO:
- /* Check to see if IOCB was issued to the port or not. If not,
- * remove it from the txq queue and call cancel iocbs.
- * Otherwise, call abort iotag.
- */
- cmdiocb = dd_data->context_un.menlo.cmdiocbq;
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- spin_lock_irqsave(&phba->hbalock, flags);
- list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
- list) {
- if (check_iocb == cmdiocb) {
- list_move_tail(&check_iocb->list, &completions);
- break;
- }
- }
- if (list_empty(&completions))
- lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
- spin_unlock_irqrestore(&phba->hbalock, flags);
- if (!list_empty(&completions)) {
- lpfc_sli_cancel_iocbs(phba, &completions,
- IOSTAT_LOCAL_REJECT,
- IOERR_SLI_ABORTED);
- }
- break;
- default:
- spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
- break;
- }
- /* scsi transport fc fc_bsg_job_timeout expects a zero return code,
- * otherwise an error message will be displayed on the console
- * so always return success (zero)
- */
- return rc;
- }
|