aboutsummaryrefslogtreecommitdiffstats
BranchCommit messageAuthorAge
archive/unc-master-3.0P-FP: fix BUG_ON releated to priority inheritanceBjoern Brandenburg13 years
archived-2013.1uncachedev: mmap memory that is not cached by CPUsGlenn Elliott12 years
archived-private-masterMerge branch 'wip-2.6.34' into old-private-masterAndrea Bastoni15 years
archived-semi-partMerge branch 'wip-semi-part' of ssh://cvs/cvs/proj/litmus/repo/litmus2010 int...Andrea Bastoni15 years
demoFurther refinementsJonathan Herman14 years
ecrts-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
ecrts14-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
gpusync-rtss12Final GPUSync implementation.Glenn Elliott12 years
gpusync/stagingRename IKGLP R2DGLP.Glenn Elliott12 years
linux-tipMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/p...Linus Torvalds15 years
litmus2008-patch-seriesadd i386 feather-trace implementationBjoern B. Brandenburg16 years
masterPSN-EDF: use inferred_sporadic_job_release_atBjoern Brandenburg9 years
pgmmake it compileGlenn Elliott12 years
prop/litmus-signalsInfrastructure for Litmus signals.Glenn Elliott13 years
prop/robust-tie-breakFixed bug in edf_higher_prio().Glenn Elliott13 years
stagingFix tracepoint compilation errorFelipe Cerqueira13 years
test9/23/2016Namhoon Kim9 years
tracing-develTest kernel tracing events capabilitiesAndrea Bastoni16 years
v2.6.34-with-arm-patchessmsc911x: Add spinlocks around registers accessCatalin Marinas15 years
v2015.1Add ARM syscall def for get_current_budgetBjoern Brandenburg10 years
wip-2011.2-bbbLitmus core: simplify np-section protocolBjoern B. Brandenburg14 years
wip-2011.2-bbb-traceRefactor sched_trace_log_message() -> debug_trace_log_message()Andrea Bastoni14 years
wip-2012.3-gpuSOBLIV draining support for C-EDF.Glenn Elliott12 years
wip-2012.3-gpu-preportpick up last C-RM fileGlenn Elliott12 years
wip-2012.3-gpu-rtss13Fix critical bug in GPU tracker.Glenn Elliott12 years
wip-2012.3-gpu-sobliv-budget-w-ksharkProper sobliv draining and many bug fixes.Glenn Elliott12 years
wip-aedzl-finalMake it easier to compile AEDZL interfaces in liblitmus.Glenn Elliott15 years
wip-aedzl-revisedAdd sched_trace data for Apative EDZLGlenn Elliott15 years
wip-arbit-deadlineFix compilation bug.Glenn Elliott13 years
wip-aux-tasksDescription of refined aux task inheritance.Glenn Elliott13 years
wip-bbbGSN-EDF & Core: improve debug TRACE'ing for NP sectionsBjoern B. Brandenburg14 years
wip-bbb-prio-donuse correct timestampBjoern B. Brandenburg14 years
wip-better-breakImplement hash-based EDF tie-breaking.Glenn Elliott13 years
wip-binary-heapMake C-EDF work with simplified binheap_deleteGlenn Elliott13 years
wip-budgetAdded support for choices in budget policy enforcement.Glenn Elliott15 years
wip-colorSummarize schedulability with final recordJonathan Herman13 years
wip-color-jlhsched_color: Fixed two bugs causing crashing on experiment restart and a rare...Jonathan Herman13 years
wip-d10-hz1000Enable HZ=1000 on District 10Bjoern B. Brandenburg15 years
wip-default-clusteringFeature: Make default C-EDF clustering compile-time configurable.Glenn Elliott15 years
wip-dissipation-jericksoUpdate from 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-dissipation2-jericksoUpdate 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-ecrts14-pgmMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
wip-edf-hsblast tested versionJonathan Herman14 years
wip-edf-osLookup table EDF-osJeremy Erickson12 years
wip-edf-tie-breakMerge branch 'wip-edf-tie-break' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus...Glenn Elliott13 years
wip-edzl-critiqueUse hr_timer's active checks instead of having own flag.Glenn Elliott15 years
wip-edzl-finalImplementation of the EDZL scheduler.Glenn Elliott15 years
wip-edzl-revisedClean up comments.Glenn Elliott15 years
wip-eventsAdded support for tracing arbitrary actions.Jonathan Herman15 years
wip-extra-debugDBG: add additional tracingBjoern B. Brandenburg15 years
wip-fix-switch-jericksoAttempt to fix race condition with plugin switchingJeremy Erickson15 years
wip-fix3sched: show length of runqueue clock deactivation in /proc/sched_debugBjoern B. Brandenburg15 years
wip-fmlp-dequeueImprove FMLP queue management.Glenn Elliott14 years
wip-ft-irq-flagFeather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-gpu-cleanupEnable sched_trace log injection from userspaceGlenn Elliott13 years
wip-gpu-interruptsRemove option for threading of all softirqs.Glenn Elliott14 years
wip-gpu-rtas12Generalized GPU cost predictors + EWMA. (untested)Glenn Elliott13 years
wip-gpu-rtss12Final GPUSync implementation.Glenn Elliott13 years
wip-gpu-rtss12-srpexperimental changes to support GPUs under SRPGlenn Elliott13 years
wip-gpusync-mergeCleanup priority tracking for budget enforcement.Glenn Elliott11 years
wip-ikglpMove RSM and IKGLP imp. to own .c filesGlenn Elliott13 years
wip-k-fmlpMerge branch 'mpi-master' into wip-k-fmlpGlenn Elliott14 years
wip-kernel-coloringAdded recolor syscallNamhoon Kim7 years
wip-kernthreadsKludge work-queue processing into klitirqd.Glenn Elliott15 years
wip-klmirqd-to-auxAllow klmirqd threads to be given names.Glenn Elliott13 years
wip-ksharkMerge branch 'mpi-staging' into wip-ksharkJonathan Herman13 years
wip-litmus-3.2Merge commit 'v3.2' into litmus-stagingAndrea Bastoni13 years
wip-litmus2011.2Cleanup: Coding conformance for affinity stuff.Glenn Elliott14 years
wip-litmus3.0-2011.2Feather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-master-2.6.33-rtAvoid deadlock when switching task policy to BACKGROUND (ugly)Andrea Bastoni15 years
wip-mcRemoved ARM-specific hacks which disabled less common mixed-criticality featu...Jonathan Herman12 years
wip-mc-bipasaMC-EDF addedbipasa chattopadhyay13 years
wip-mc-jericksoSplit C/D queuesJeremy Erickson15 years
wip-mc2-cache-slackManually patched mc^2 related codeMing Yang10 years
wip-mcrit-maccosmeticMac Mollison15 years
wip-merge-3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-merge-v3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-migration-affinityNULL affinity dereference in C-EDF.Glenn Elliott14 years
wip-mmap-uncacheshare branch with othersGlenn Elliott13 years
wip-modechangeRTSS 2017 submissionNamhoon Kim8 years
wip-nested-lockingAppears to be working.Bryan Ward12 years
wip-omlp-gedfFirst implementation of G-OMLP.Glenn Elliott15 years
wip-paiSome cleanup of PAIGlenn Elliott14 years
wip-percore-lib9/21/2016Namhoon Kim9 years
wip-performanceCONFIG_DONT_PREEMPT_ON_TIE: Don't preeempt a scheduled task on priority tie.Glenn Elliott14 years
wip-pgmAdd PGM support to C-FLGlenn Elliott12 years
wip-pgm-splitFirst draft of C-FL-splitNamhoon Kim12 years
wip-pm-ovdAdd preemption-and-migration overhead tracing supportAndrea Bastoni15 years
wip-prio-inhP-EDF updated to use the generic pi framework.Glenn Elliott15 years
wip-prioq-dglBUG FIX: Support DGLs with PRIOQ_MUTEXGlenn Elliott13 years
wip-refactored-gedfGeneralizd architecture for GEDF-style scheduelrs to reduce code redundancy.Glenn Elliott15 years
wip-release-master-fixbugfix: release master CPU must signal task was pickedBjoern B. Brandenburg14 years
wip-robust-tie-breakEDF priority tie-breaks.Glenn Elliott13 years
wip-rt-ksharkMove task time accounting into the complete_job method.Jonathan Herman13 years
wip-rtas12-pgmScheduling of PGM jobs.Glenn Elliott13 years
wip-semi-partFix compile error with newer GCCJeremy Erickson12 years
wip-semi-part-edfos-jericksoUse initial CPU set by clientJeremy Erickson12 years
wip-shared-libTODO: Fix condition checks in replicate_page_move_mapping()Namhoon Kim9 years
wip-shared-lib2RTAS 2017 Submission ver.Namhoon Kim9 years
wip-shared-memInitial commit for shared libraryNamhoon Kim9 years
wip-splitting-jericksoFix release behaviorJeremy Erickson13 years
wip-splitting-omlp-jericksoBjoern's Dissertation Code with Priority DonationJeremy Erickson13 years
wip-stage-binheapAn efficient binary heap implementation.Glenn Elliott13 years
wip-sun-portDynamic memory allocation and clean exit for FeatherTraceChristopher Kenna15 years
wip-timer-tracebugfix: C-EDF, clear scheduled field of the correct CPU upon task_exitAndrea Bastoni15 years
wip-tracepointsAdd kernel-style events for sched_trace_XXX() functionsAndrea Bastoni14 years
 
TagDownloadAuthorAge
2015.1commit 8e51b37822...Bjoern Brandenburg10 years
2013.1commit bcaacec1ca...Glenn Elliott12 years
2012.3commit c158b5fbe4...Jonathan Herman13 years
2012.2commit b53c479a0f...Glenn Elliott13 years
2012.1commit 83b11ea1c6...Bjoern B. Brandenburg14 years
rtas12-mc-beta-expcommit 8e236ee20f...Christopher Kenna14 years
2011.1commit d11808b5c6...Christopher Kenna15 years
v2.6.37-rc4commit e8a7e48bb2...Linus Torvalds15 years
v2.6.37-rc3commit 3561d43fd2...Linus Torvalds15 years
v2.6.37-rc2commit e53beacd23...Linus Torvalds15 years
v2.6.37-rc1commit c8ddb2713c...Linus Torvalds15 years
v2.6.36commit f6f94e2ab1...Linus Torvalds15 years
2010.2commit 5c5456402d...Bjoern B. Brandenburg15 years
v2.6.36-rc8commit cd07202cc8...Linus Torvalds15 years
v2.6.36-rc7commit cb655d0f3d...Linus Torvalds15 years
v2.6.36-rc6commit 899611ee7d...Linus Torvalds15 years
v2.6.36-rc5commit b30a3f6257...Linus Torvalds15 years
v2.6.36-rc4commit 49553c2ef8...Linus Torvalds15 years
v2.6.36-rc3commit 2bfc96a127...Linus Torvalds15 years
v2.6.36-rc2commit 76be97c1fc...Linus Torvalds15 years
v2.6.36-rc1commit da5cabf80e...Linus Torvalds15 years
v2.6.35commit 9fe6206f40...Linus Torvalds15 years
v2.6.35-rc6commit b37fa16e78...Linus Torvalds15 years
v2.6.35-rc5commit 1c5474a65b...Linus Torvalds15 years
v2.6.35-rc4commit 815c4163b6...Linus Torvalds15 years
v2.6.35-rc3commit 7e27d6e778...Linus Torvalds15 years
v2.6.35-rc2commit e44a21b726...Linus Torvalds15 years
v2.6.35-rc1commit 67a3e12b05...Linus Torvalds15 years
2010.1commit 7c1ff4c544...Andrea Bastoni15 years
v2.6.34commit e40152ee1e...Linus Torvalds15 years
v2.6.33.4commit 4640b4e7d9...Greg Kroah-Hartman15 years
v2.6.34-rc7commit b57f95a382...Linus Torvalds15 years
v2.6.34-rc6commit 66f41d4c5c...Linus Torvalds15 years
v2.6.33.3commit 3e7ad8ed97...Greg Kroah-Hartman15 years
v2.6.34-rc5commit 01bf0b6457...Linus Torvalds15 years
v2.6.34-rc4commit 0d0fb0f9c5...Linus Torvalds15 years
v2.6.33.2commit 19f00f070c...Greg Kroah-Hartman15 years
v2.6.34-rc3commit 2eaa9cfdf3...Linus Torvalds15 years
v2.6.34-rc2commit 220bf991b0...Linus Torvalds15 years
v2.6.33.1commit dbdafe5ccf...Greg Kroah-Hartman15 years
v2.6.34-rc1commit 57d54889cd...Linus Torvalds16 years
v2.6.33commit 60b341b778...Linus Torvalds16 years
v2.6.33-rc8commit 724e6d3fe8...Linus Torvalds16 years
v2.6.33-rc7commit 29275254ca...Linus Torvalds16 years
v2.6.33-rc6commit abe94c756c...Linus Torvalds16 years
v2.6.33-rc5commit 92dcffb916...Linus Torvalds16 years
v2.6.33-rc4commit 7284ce6c9f...Linus Torvalds16 years
v2.6.33-rc3commit 74d2e4f8d7...Linus Torvalds16 years
v2.6.33-rc2commit 6b7b284958...Linus Torvalds16 years
v2.6.33-rc1commit 55639353a0...Linus Torvalds16 years
v2.6.32commit 22763c5cf3...Linus Torvalds16 years
v2.6.32-rc8commit 648f4e3e50...Linus Torvalds16 years
v2.6.32-rc7commit 156171c71a...Linus Torvalds16 years
v2.6.32-rc6commit b419148e56...Linus Torvalds16 years
v2.6.32-rc5commit 012abeea66...Linus Torvalds16 years
v2.6.32-rc4commit 161291396e...Linus Torvalds16 years
v2.6.32-rc3commit 374576a8b6...Linus Torvalds16 years
v2.6.32-rc1commit 17d857be64...Linus Torvalds16 years
v2.6.32-rc2commit 17d857be64...Linus Torvalds16 years
v2.6.31commit 74fca6a428...Linus Torvalds16 years
v2.6.31-rc9commit e07cccf404...Linus Torvalds16 years
v2.6.31-rc8commit 326ba5010a...Linus Torvalds16 years
v2.6.31-rc7commit 422bef879e...Linus Torvalds16 years
v2.6.31-rc6commit 64f1607ffb...Linus Torvalds16 years
v2.6.31-rc5commit ed680c4ad4...Linus Torvalds16 years
v2.6.31-rc4commit 4be3bd7849...Linus Torvalds16 years
v2.6.31-rc3commit 6847e154e3...Linus Torvalds16 years
v2.6.31-rc2commit 8e4a718ff3...Linus Torvalds16 years
v2.6.31-rc1commit 28d0325ce6...Linus Torvalds16 years
v2.6.30commit 07a2039b8e...Linus Torvalds16 years
v2.6.30-rc8commit 9fa7eb283c...Linus Torvalds16 years
v2.6.30-rc7commit 59a3759d0f...Linus Torvalds16 years
v2.6.30-rc6commit 1406de8e11...Linus Torvalds16 years
v2.6.30-rc5commit 091bf7624d...Linus Torvalds16 years
v2.6.30-rc4commit 091438dd56...Linus Torvalds16 years
v2.6.30-rc3commit 0910697403...Linus Torvalds16 years
v2.6.30-rc2commit 0882e8dd3a...Linus Torvalds16 years
v2.6.30-rc1commit 577c9c456f...Linus Torvalds16 years
v2.6.29commit 8e0ee43bc2...Linus Torvalds16 years
v2.6.29-rc8commit 041b62374c...Linus Torvalds16 years
v2.6.29-rc7commit fec6c6fec3...Linus Torvalds17 years
v2.6.29-rc6commit 20f4d6c3a2...Linus Torvalds17 years
v2.6.29-rc5commit d2f8d7ee1a...Linus Torvalds17 years
v2.6.29-rc4commit 8e4921515c...Linus Torvalds17 years
v2.6.29-rc3commit 18e352e4a7...Linus Torvalds17 years
v2.6.29-rc2commit 1de9e8e70f...Linus Torvalds17 years
v2.6.29-rc1commit c59765042f...Linus Torvalds17 years
v2.6.28commit 4a6908a3a0...Linus Torvalds17 years
v2.6.28-rc9commit 929096fe9f...Linus Torvalds17 years
v2.6.28-rc8commit 8b1fae4e42...Linus Torvalds17 years
v2.6.28-rc7commit 061e41fdb5...Linus Torvalds17 years
v2.6.28-rc6commit 13d428afc0...Linus Torvalds17 years
v2.6.28-rc5commit 9bf1a2445f...Linus Torvalds17 years
v2.6.28-rc4commit f7160c7573...Linus Torvalds17 years
v2.6.28-rc3commit 45beca08dd...Linus Torvalds17 years
v2.6.28-rc2commit 0173a3265b...Linus Torvalds17 years
v2.6.28-rc1commit 57f8f7b60d...Linus Torvalds17 years
v2.6.27commit 3fa8749e58...Linus Torvalds17 years
v2.6.27-rc9commit 4330ed8ed4...Linus Torvalds17 years
v2.6.27-rc8commit 94aca1dac6...Linus Torvalds17 years
v2.6.27-rc7commit 72d31053f6...Linus Torvalds17 years
v2.6.27-rc6commit adee14b2e1...Linus Torvalds17 years
v2.6.27-rc5commit 24342c34a0...Linus Torvalds17 years
v2.6.27-rc4commit 6a55617ed5...Linus Torvalds17 years
v2.6.27-rc3commit 30a2f3c60a...Linus Torvalds17 years
v2.6.27-rc2commit 0967d61ea0...Linus Torvalds17 years
v2.6.27-rc1commit 6e86841d05...Linus Torvalds17 years
v2.6.26commit bce7f793da...Linus Torvalds17 years
v2.6.26-rc9commit b7279469d6...Linus Torvalds17 years
v2.6.26-rc8commit 543cf4cb3f...Linus Torvalds17 years
v2.6.26-rc7commit d70ac829b7...Linus Torvalds17 years
v2.6.26-rc6commit 5dd34572ad...Linus Torvalds17 years
v2.6.26-rc5commit 53c8ba9540...Linus Torvalds17 years
v2.6.26-rc4commit e490517a03...Linus Torvalds17 years
v2.6.26-rc3commit b8291ad07a...Linus Torvalds17 years
v2.6.26-rc2commit 492c2e476e...Linus Torvalds17 years
v2.6.26-rc1commit 2ddcca36c8...Linus Torvalds17 years
v2.6.25commit 4b119e21d0...Linus Torvalds17 years
v2.6.25-rc9commit 120dd64cac...Linus Torvalds17 years
v2.6.25-rc8commit 0e81a8ae37...Linus Torvalds17 years
v2.6.25-rc7commit 05dda977f2...Linus Torvalds17 years
v2.6.25-rc6commit a978b30af3...Linus Torvalds17 years
v2.6.25-rc5commit cdeeeae056...Linus Torvalds18 years
v2.6.25-rc4commit 29e8c3c304...Linus Torvalds18 years
v2.6.25-rc3commit bfa274e243...Linus Torvalds18 years
v2.6.25-rc2commit 101142c37b...Linus Torvalds18 years
v2.6.25-rc1commit 19af35546d...Linus Torvalds18 years
v2.6.24commit 49914084e7...Linus Torvalds18 years
v2.6.24-rc8commit cbd9c88369...Linus Torvalds18 years
v2.6.24-rc7commit 3ce5445046...Linus Torvalds18 years
v2.6.24-rc6commit ea67db4cdb...Linus Torvalds18 years
v2.6.24-rc5commit 82d29bf6dc...Linus Torvalds18 years
v2.6.24-rc4commit 09b56adc98...Linus Torvalds18 years
v2.6.24-rc3commit d9f8bcbf67...Linus Torvalds18 years
v2.6.24-rc2commit dbeeb816e8...Linus Torvalds18 years
v2.6.24-rc1commit c9927c2bf4...Linus Torvalds18 years
v2.6.23commit bbf25010f1...Linus Torvalds18 years
v2.6.23-rc9commit 3146b39c18...Linus Torvalds18 years
v2.6.23-rc8commit 4942de4a0e...Linus Torvalds18 years
v2.6.23-rc7commit 81cfe79b9c...Linus Torvalds18 years
v2.6.23-rc6commit 0d4cbb5e7f...Linus Torvalds18 years
v2.6.23-rc5commit 40ffbfad6b...Linus Torvalds18 years
v2.6.23-rc4commit b07d68b5ca...Linus Torvalds18 years
v2.6.23-rc3commit 39d3520c92...Linus Torvalds18 years
v2.6.23-rc2commit d4ac2477fa...Linus Torvalds18 years
v2.6.23-rc1commit f695baf2df...Linus Torvalds18 years
v2.6.22commit 7dcca30a32...Linus Torvalds18 years
v2.6.22-rc7commit a38d6181ff...Linus Torvalds18 years
v2.6.22-rc6commit 189548642c...Linus Torvalds18 years
v2.6.22-rc5commit 188e1f81ba...Linus Torvalds18 years
v2.6.22-rc4commit 5ecd3100e6...Linus Torvalds18 years
v2.6.22-rc3commit c420bc9f09...Linus Torvalds18 years
v2.6.22-rc2commit 55b637c6a0...Linus Torvalds18 years
v2.6.22-rc1commit 39403865d2...Linus Torvalds18 years
v2.6.21commit de46c33745...Linus Torvalds18 years
v2.6.21-rc7commit 94a05509a9...Linus Torvalds18 years
v2.6.21-rc6commit a21bd69e15...Linus Torvalds18 years
v2.6.21-rc5commit e0f2e3a06b...Linus Torvalds18 years
v2.6.21-rc4commit db98e0b434...Linus Torvalds18 years
v2.6.21-rc3commit 08e15e81a4...Linus Torvalds19 years
v2.6.21-rc2commit 606135a308...Linus Torvalds19 years
v2.6.21-rc1commit c8f71b01a5...Linus Torvalds19 years
v2.6.20commit 62d0cfcb27...Linus Torvalds19 years
v2.6.20-rc7commit f56df2f4db...Linus Torvalds19 years
v2.6.20-rc6commit 99abfeafb5...Linus Torvalds19 years
v2.6.20-rc5commit a8b3485287...Linus Torvalds19 years
v2.6.20-rc4commit bf81b46482...Linus Torvalds19 years
v2.6.20-rc3commit 669df1b478...Linus Torvalds19 years
v2.6.20-rc2commit 3bf8ba38f3...Linus Torvalds19 years
v2.6.20-rc1commit cc016448b0...Linus Torvalds19 years
v2.6.19commit 0215ffb08c...Linus Torvalds19 years
v2.6.19-rc6commit 44597f65f6...Linus Torvalds19 years
v2.6.19-rc5commit 80c2188127...Linus Torvalds19 years
v2.6.19-rc4commit ae99a78af3...Linus Torvalds19 years
v2.6.19-rc3commit 7059abedd2...Linus Torvalds19 years
v2.6.19-rc2commit b4bd8c6643...Linus Torvalds19 years
v2.6.19-rc1commit d223a60106...Linus Torvalds19 years
v2.6.18commit e478bec0ba...Linus Torvalds19 years
v2.6.18-rc7commit 95064a75eb...Linus Torvalds19 years
v2.6.18-rc6commit c336923b66...Linus Torvalds19 years
v2.6.18-rc5commit 60d4684068...Linus Torvalds19 years
v2.6.18-rc4commit 9f737633e6...Linus Torvalds19 years
v2.6.18-rc3commit b6ff50833a...Linus Torvalds19 years
v2.6.18-rc2commit 82d6897fef...Linus Torvalds19 years
v2.6.18-rc1commit 120bda20c6...Linus Torvalds19 years
v2.6.17commit 427abfa28a...Linus Torvalds19 years
v2.6.17-rc6commit 1def630a6a...Linus Torvalds19 years
v2.6.17-rc5commit a8bd60705a...Linus Torvalds19 years
v2.6.17-rc4commit d8c3291c73...Linus Torvalds19 years
v2.6.17-rc3commit 2be4d50295...Linus Torvalds19 years
v2.6.17-rc2commit 8bbde0e6d5...Linus Torvalds19 years
v2.6.17-rc1commit 6246b6128b...Linus Torvalds19 years
v2.6.16commit 7705a8792b...Linus Torvalds19 years
v2.6.16-rc6commit 535744878e...Linus Torvalds20 years
v2.6.16-rc5commit b9a33cebac...Linus Torvalds20 years
v2.6.16-rc4commit bd71c2b174...Linus Torvalds20 years
v2.6.16-rc3commit e9bb4c9929...Linus Torvalds20 years
v2.6.16-rc2commit 826eeb53a6...Linus Torvalds20 years
v2.6.16-rc1commit 2664b25051...Linus Torvalds20 years
v2.6.15commit 88026842b0...Linus Torvalds20 years
v2.6.15-rc7commit f89f5948fc...Linus Torvalds20 years
v2.6.15-rc6commit df7addbb45...Linus Torvalds20 years
v2.6.15-rc5commit 436b0f76f2...Linus Torvalds20 years
v2.6.15-rc4commit 5666c0947e...Linus Torvalds20 years
v2.6.15-rc3commit 624f54be20...Linus Torvalds20 years
v2.6.15-rc2commit 3bedff1d73...Linus Torvalds20 years
v2.6.15-rc1commit cd52d1ee9a...Linus Torvalds20 years
v2.6.14commit 741b2252a5...Linus Torvalds20 years
v2.6.14-rc5commit 93918e9afc...Linus Torvalds20 years
v2.6.14-rc4commit 907a426179...Linus Torvalds20 years
v2.6.14-rc3commit 1c9426e8a5...Linus Torvalds20 years
v2.6.14-rc2commit 676d55ae30...Linus Torvalds20 years
v2.6.14-rc1commit 2f4ba45a75...Linus Torvalds20 years
v2.6.13commit 02b3e4e2d7...Linus Torvalds20 years
v2.6.13-rc7commit 0572e3da3f...Linus Torvalds20 years
v2.6.13-rc6commit 6fc32179de...Linus Torvalds20 years
v2.6.13-rc5commit 9a351e30d7...Linus Torvalds20 years
v2.6.13-rc4commit 6395352334...Linus Torvalds20 years
v2.6.11tree c39ae07f39...
v2.6.11-treetree c39ae07f39...
v2.6.12commit 9ee1c939d1...
v2.6.12-rc2commit 1da177e4c3...
v2.6.12-rc3commit a2755a80f4...
v2.6.12-rc4commit 88d7bd8cb9...
v2.6.12-rc5commit 2a24ab628a...
v2.6.12-rc6commit 7cef5677ef...
v2.6.13-rc1commit 4c91aedb75...
v2.6.13-rc2commit a18bcb7450...
v2.6.13-rc3commit c32511e271...
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-06 14:30:30 -0400
n> unsigned int avail, posted, got = 0, advertise; long oldval, newval; *adv_credits = 0; if (!ic->i_flowctl) return wanted; try_again: advertise = 0; oldval = newval = atomic_read(&ic->i_credits); posted = IB_GET_POST_CREDITS(oldval); avail = IB_GET_SEND_CREDITS(oldval); rdsdebug("rds_iw_send_grab_credits(%u): credits=%u posted=%u\n", wanted, avail, posted); /* The last credit must be used to send a credit update. */ if (avail && !posted) avail--; if (avail < wanted) { struct rds_connection *conn = ic->i_cm_id->context; /* Oops, there aren't that many credits left! */ set_bit(RDS_LL_SEND_FULL, &conn->c_flags); got = avail; } else { /* Sometimes you get what you want, lalala. */ got = wanted; } newval -= IB_SET_SEND_CREDITS(got); /* * If need_posted is non-zero, then the caller wants * the posted regardless of whether any send credits are * available. */ if (posted && (got || need_posted)) { advertise = min_t(unsigned int, posted, max_posted); newval -= IB_SET_POST_CREDITS(advertise); } /* Finally bill everything */ if (atomic_cmpxchg(&ic->i_credits, oldval, newval) != oldval) goto try_again; *adv_credits = advertise; return got; } void rds_iw_send_add_credits(struct rds_connection *conn, unsigned int credits) { struct rds_iw_connection *ic = conn->c_transport_data; if (credits == 0) return; rdsdebug("rds_iw_send_add_credits(%u): current=%u%s\n", credits, IB_GET_SEND_CREDITS(atomic_read(&ic->i_credits)), test_bit(RDS_LL_SEND_FULL, &conn->c_flags) ? ", ll_send_full" : ""); atomic_add(IB_SET_SEND_CREDITS(credits), &ic->i_credits); if (test_and_clear_bit(RDS_LL_SEND_FULL, &conn->c_flags)) queue_delayed_work(rds_wq, &conn->c_send_w, 0); WARN_ON(IB_GET_SEND_CREDITS(credits) >= 16384); rds_iw_stats_inc(s_iw_rx_credit_updates); } void rds_iw_advertise_credits(struct rds_connection *conn, unsigned int posted) { struct rds_iw_connection *ic = conn->c_transport_data; if (posted == 0) return; atomic_add(IB_SET_POST_CREDITS(posted), &ic->i_credits); /* Decide whether to send an update to the peer now. * If we would send a credit update for every single buffer we * post, we would end up with an ACK storm (ACK arrives, * consumes buffer, we refill the ring, send ACK to remote * advertising the newly posted buffer... ad inf) * * Performance pretty much depends on how often we send * credit updates - too frequent updates mean lots of ACKs. * Too infrequent updates, and the peer will run out of * credits and has to throttle. * For the time being, 16 seems to be a good compromise. */ if (IB_GET_POST_CREDITS(atomic_read(&ic->i_credits)) >= 16) set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); } static inline void rds_iw_xmit_populate_wr(struct rds_iw_connection *ic, struct rds_iw_send_work *send, unsigned int pos, unsigned long buffer, unsigned int length, int send_flags) { struct ib_sge *sge; WARN_ON(pos != send - ic->i_sends); send->s_wr.send_flags = send_flags; send->s_wr.opcode = IB_WR_SEND; send->s_wr.num_sge = 2; send->s_wr.next = NULL; send->s_queued = jiffies; send->s_op = NULL; if (length != 0) { sge = rds_iw_data_sge(ic, send->s_sge); sge->addr = buffer; sge->length = length; sge->lkey = rds_iw_local_dma_lkey(ic); sge = rds_iw_header_sge(ic, send->s_sge); } else { /* We're sending a packet with no payload. There is only * one SGE */ send->s_wr.num_sge = 1; sge = &send->s_sge[0]; } sge->addr = ic->i_send_hdrs_dma + (pos * sizeof(struct rds_header)); sge->length = sizeof(struct rds_header); sge->lkey = rds_iw_local_dma_lkey(ic); } /* * This can be called multiple times for a given message. The first time * we see a message we map its scatterlist into the IB device so that * we can provide that mapped address to the IB scatter gather entries * in the IB work requests. We translate the scatterlist into a series * of work requests that fragment the message. These work requests complete * in order so we pass ownership of the message to the completion handler * once we send the final fragment. * * The RDS core uses the c_send_lock to only enter this function once * per connection. This makes sure that the tx ring alloc/unalloc pairs * don't get out of sync and confuse the ring. */ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm, unsigned int hdr_off, unsigned int sg, unsigned int off) { struct rds_iw_connection *ic = conn->c_transport_data; struct ib_device *dev = ic->i_cm_id->device; struct rds_iw_send_work *send = NULL; struct rds_iw_send_work *first; struct rds_iw_send_work *prev; struct ib_send_wr *failed_wr; struct scatterlist *scat; u32 pos; u32 i; u32 work_alloc; u32 credit_alloc; u32 posted; u32 adv_credits = 0; int send_flags = 0; int sent; int ret; int flow_controlled = 0; BUG_ON(off % RDS_FRAG_SIZE); BUG_ON(hdr_off != 0 && hdr_off != sizeof(struct rds_header)); /* Fastreg support */ if (rds_rdma_cookie_key(rm->m_rdma_cookie) && !ic->i_fastreg_posted) { ret = -EAGAIN; goto out; } /* FIXME we may overallocate here */ if (be32_to_cpu(rm->m_inc.i_hdr.h_len) == 0) i = 1; else i = ceil(be32_to_cpu(rm->m_inc.i_hdr.h_len), RDS_FRAG_SIZE); work_alloc = rds_iw_ring_alloc(&ic->i_send_ring, i, &pos); if (work_alloc == 0) { set_bit(RDS_LL_SEND_FULL, &conn->c_flags); rds_iw_stats_inc(s_iw_tx_ring_full); ret = -ENOMEM; goto out; } credit_alloc = work_alloc; if (ic->i_flowctl) { credit_alloc = rds_iw_send_grab_credits(ic, work_alloc, &posted, 0, RDS_MAX_ADV_CREDIT); adv_credits += posted; if (credit_alloc < work_alloc) { rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc - credit_alloc); work_alloc = credit_alloc; flow_controlled++; } if (work_alloc == 0) { set_bit(RDS_LL_SEND_FULL, &conn->c_flags); rds_iw_stats_inc(s_iw_tx_throttle); ret = -ENOMEM; goto out; } } /* map the message the first time we see it */ if (!ic->i_rm) { /* printk(KERN_NOTICE "rds_iw_xmit prep msg dport=%u flags=0x%x len=%d\n", be16_to_cpu(rm->m_inc.i_hdr.h_dport), rm->m_inc.i_hdr.h_flags, be32_to_cpu(rm->m_inc.i_hdr.h_len)); */ if (rm->data.op_nents) { rm->data.op_count = ib_dma_map_sg(dev, rm->data.op_sg, rm->data.op_nents, DMA_TO_DEVICE); rdsdebug("ic %p mapping rm %p: %d\n", ic, rm, rm->data.op_count); if (rm->data.op_count == 0) { rds_iw_stats_inc(s_iw_tx_sg_mapping_failure); rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc); ret = -ENOMEM; /* XXX ? */ goto out; } } else { rm->data.op_count = 0; } ic->i_unsignaled_wrs = rds_iw_sysctl_max_unsig_wrs; ic->i_unsignaled_bytes = rds_iw_sysctl_max_unsig_bytes; rds_message_addref(rm); ic->i_rm = rm; /* Finalize the header */ if (test_bit(RDS_MSG_ACK_REQUIRED, &rm->m_flags)) rm->m_inc.i_hdr.h_flags |= RDS_FLAG_ACK_REQUIRED; if (test_bit(RDS_MSG_RETRANSMITTED, &rm->m_flags)) rm->m_inc.i_hdr.h_flags |= RDS_FLAG_RETRANSMITTED; /* If it has a RDMA op, tell the peer we did it. This is * used by the peer to release use-once RDMA MRs. */ if (rm->rdma.op_active) { struct rds_ext_header_rdma ext_hdr; ext_hdr.h_rdma_rkey = cpu_to_be32(rm->rdma.op_rkey); rds_message_add_extension(&rm->m_inc.i_hdr, RDS_EXTHDR_RDMA, &ext_hdr, sizeof(ext_hdr)); } if (rm->m_rdma_cookie) { rds_message_add_rdma_dest_extension(&rm->m_inc.i_hdr, rds_rdma_cookie_key(rm->m_rdma_cookie), rds_rdma_cookie_offset(rm->m_rdma_cookie)); } /* Note - rds_iw_piggyb_ack clears the ACK_REQUIRED bit, so * we should not do this unless we have a chance of at least * sticking the header into the send ring. Which is why we * should call rds_iw_ring_alloc first. */ rm->m_inc.i_hdr.h_ack = cpu_to_be64(rds_iw_piggyb_ack(ic)); rds_message_make_checksum(&rm->m_inc.i_hdr); /* * Update adv_credits since we reset the ACK_REQUIRED bit. */ rds_iw_send_grab_credits(ic, 0, &posted, 1, RDS_MAX_ADV_CREDIT - adv_credits); adv_credits += posted; BUG_ON(adv_credits > 255); } send = &ic->i_sends[pos]; first = send; prev = NULL; scat = &rm->data.op_sg[sg]; sent = 0; i = 0; /* Sometimes you want to put a fence between an RDMA * READ and the following SEND. * We could either do this all the time * or when requested by the user. Right now, we let * the application choose. */ if (rm->rdma.op_active && rm->rdma.op_fence) send_flags = IB_SEND_FENCE; /* * We could be copying the header into the unused tail of the page. * That would need to be changed in the future when those pages might * be mapped userspace pages or page cache pages. So instead we always * use a second sge and our long-lived ring of mapped headers. We send * the header after the data so that the data payload can be aligned on * the receiver. */ /* handle a 0-len message */ if (be32_to_cpu(rm->m_inc.i_hdr.h_len) == 0) { rds_iw_xmit_populate_wr(ic, send, pos, 0, 0, send_flags); goto add_header; } /* if there's data reference it with a chain of work reqs */ for (; i < work_alloc && scat != &rm->data.op_sg[rm->data.op_count]; i++) { unsigned int len; send = &ic->i_sends[pos]; len = min(RDS_FRAG_SIZE, ib_sg_dma_len(dev, scat) - off); rds_iw_xmit_populate_wr(ic, send, pos, ib_sg_dma_address(dev, scat) + off, len, send_flags); /* * We want to delay signaling completions just enough to get * the batching benefits but not so much that we create dead time * on the wire. */ if (ic->i_unsignaled_wrs-- == 0) { ic->i_unsignaled_wrs = rds_iw_sysctl_max_unsig_wrs; send->s_wr.send_flags |= IB_SEND_SIGNALED | IB_SEND_SOLICITED; } ic->i_unsignaled_bytes -= len; if (ic->i_unsignaled_bytes <= 0) { ic->i_unsignaled_bytes = rds_iw_sysctl_max_unsig_bytes; send->s_wr.send_flags |= IB_SEND_SIGNALED | IB_SEND_SOLICITED; } /* * Always signal the last one if we're stopping due to flow control. */ if (flow_controlled && i == (work_alloc-1)) send->s_wr.send_flags |= IB_SEND_SIGNALED | IB_SEND_SOLICITED; rdsdebug("send %p wr %p num_sge %u next %p\n", send, &send->s_wr, send->s_wr.num_sge, send->s_wr.next); sent += len; off += len; if (off == ib_sg_dma_len(dev, scat)) { scat++; off = 0; } add_header: /* Tack on the header after the data. The header SGE should already * have been set up to point to the right header buffer. */ memcpy(&ic->i_send_hdrs[pos], &rm->m_inc.i_hdr, sizeof(struct rds_header)); if (0) { struct rds_header *hdr = &ic->i_send_hdrs[pos]; printk(KERN_NOTICE "send WR dport=%u flags=0x%x len=%d\n", be16_to_cpu(hdr->h_dport), hdr->h_flags, be32_to_cpu(hdr->h_len)); } if (adv_credits) { struct rds_header *hdr = &ic->i_send_hdrs[pos]; /* add credit and redo the header checksum */ hdr->h_credit = adv_credits; rds_message_make_checksum(hdr); adv_credits = 0; rds_iw_stats_inc(s_iw_tx_credit_updates); } if (prev) prev->s_wr.next = &send->s_wr; prev = send; pos = (pos + 1) % ic->i_send_ring.w_nr; } /* Account the RDS header in the number of bytes we sent, but just once. * The caller has no concept of fragmentation. */ if (hdr_off == 0) sent += sizeof(struct rds_header); /* if we finished the message then send completion owns it */ if (scat == &rm->data.op_sg[rm->data.op_count]) { prev->s_rm = ic->i_rm; prev->s_wr.send_flags |= IB_SEND_SIGNALED | IB_SEND_SOLICITED; ic->i_rm = NULL; } if (i < work_alloc) { rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc - i); work_alloc = i; } if (ic->i_flowctl && i < credit_alloc) rds_iw_send_add_credits(conn, credit_alloc - i); /* XXX need to worry about failed_wr and partial sends. */ failed_wr = &first->s_wr; ret = ib_post_send(ic->i_cm_id->qp, &first->s_wr, &failed_wr); rdsdebug("ic %p first %p (wr %p) ret %d wr %p\n", ic, first, &first->s_wr, ret, failed_wr); BUG_ON(failed_wr != &first->s_wr); if (ret) { printk(KERN_WARNING "RDS/IW: ib_post_send to %pI4 " "returned %d\n", &conn->c_faddr, ret); rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc); if (prev->s_rm) { ic->i_rm = prev->s_rm; prev->s_rm = NULL; } goto out; } ret = sent; out: BUG_ON(adv_credits); return ret; } static void rds_iw_build_send_fastreg(struct rds_iw_device *rds_iwdev, struct rds_iw_connection *ic, struct rds_iw_send_work *send, int nent, int len, u64 sg_addr) { BUG_ON(nent > send->s_page_list->max_page_list_len); /* * Perform a WR for the fast_reg_mr. Each individual page * in the sg list is added to the fast reg page list and placed * inside the fast_reg_mr WR. */ send->s_wr.opcode = IB_WR_FAST_REG_MR; send->s_wr.wr.fast_reg.length = len; send->s_wr.wr.fast_reg.rkey = send->s_mr->rkey; send->s_wr.wr.fast_reg.page_list = send->s_page_list; send->s_wr.wr.fast_reg.page_list_len = nent; send->s_wr.wr.fast_reg.page_shift = PAGE_SHIFT; send->s_wr.wr.fast_reg.access_flags = IB_ACCESS_REMOTE_WRITE; send->s_wr.wr.fast_reg.iova_start = sg_addr; ib_update_fast_reg_key(send->s_mr, send->s_remap_count++); } int rds_iw_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op) { struct rds_iw_connection *ic = conn->c_transport_data; struct rds_iw_send_work *send = NULL; struct rds_iw_send_work *first; struct rds_iw_send_work *prev; struct ib_send_wr *failed_wr; struct rds_iw_device *rds_iwdev; struct scatterlist *scat; unsigned long len; u64 remote_addr = op->op_remote_addr; u32 pos, fr_pos; u32 work_alloc; u32 i; u32 j; int sent; int ret; int num_sge; rds_iwdev = ib_get_client_data(ic->i_cm_id->device, &rds_iw_client); /* map the message the first time we see it */ if (!op->op_mapped) { op->op_count = ib_dma_map_sg(ic->i_cm_id->device, op->op_sg, op->op_nents, (op->op_write) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); rdsdebug("ic %p mapping op %p: %d\n", ic, op, op->op_count); if (op->op_count == 0) { rds_iw_stats_inc(s_iw_tx_sg_mapping_failure); ret = -ENOMEM; /* XXX ? */ goto out; } op->op_mapped = 1; } if (!op->op_write) { /* Alloc space on the send queue for the fastreg */ work_alloc = rds_iw_ring_alloc(&ic->i_send_ring, 1, &fr_pos); if (work_alloc != 1) { rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc); rds_iw_stats_inc(s_iw_tx_ring_full); ret = -ENOMEM; goto out; } } /* * Instead of knowing how to return a partial rdma read/write we insist that there * be enough work requests to send the entire message. */ i = ceil(op->op_count, rds_iwdev->max_sge); work_alloc = rds_iw_ring_alloc(&ic->i_send_ring, i, &pos); if (work_alloc != i) { rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc); rds_iw_stats_inc(s_iw_tx_ring_full); ret = -ENOMEM; goto out; } send = &ic->i_sends[pos]; if (!op->op_write) { first = prev = &ic->i_sends[fr_pos]; } else { first = send; prev = NULL; } scat = &op->op_sg[0]; sent = 0; num_sge = op->op_count; for (i = 0; i < work_alloc && scat != &op->op_sg[op->op_count]; i++) { send->s_wr.send_flags = 0; send->s_queued = jiffies; /* * We want to delay signaling completions just enough to get * the batching benefits but not so much that we create dead time on the wire. */ if (ic->i_unsignaled_wrs-- == 0) { ic->i_unsignaled_wrs = rds_iw_sysctl_max_unsig_wrs; send->s_wr.send_flags = IB_SEND_SIGNALED; } /* To avoid the need to have the plumbing to invalidate the fastreg_mr used * for local access after RDS is finished with it, using * IB_WR_RDMA_READ_WITH_INV will invalidate it after the read has completed. */ if (op->op_write) send->s_wr.opcode = IB_WR_RDMA_WRITE; else send->s_wr.opcode = IB_WR_RDMA_READ_WITH_INV; send->s_wr.wr.rdma.remote_addr = remote_addr; send->s_wr.wr.rdma.rkey = op->op_rkey; send->s_op = op; if (num_sge > rds_iwdev->max_sge) { send->s_wr.num_sge = rds_iwdev->max_sge; num_sge -= rds_iwdev->max_sge; } else send->s_wr.num_sge = num_sge; send->s_wr.next = NULL; if (prev) prev->s_wr.next = &send->s_wr; for (j = 0; j < send->s_wr.num_sge && scat != &op->op_sg[op->op_count]; j++) { len = ib_sg_dma_len(ic->i_cm_id->device, scat); if (send->s_wr.opcode == IB_WR_RDMA_READ_WITH_INV) send->s_page_list->page_list[j] = ib_sg_dma_address(ic->i_cm_id->device, scat); else { send->s_sge[j].addr = ib_sg_dma_address(ic->i_cm_id->device, scat); send->s_sge[j].length = len; send->s_sge[j].lkey = rds_iw_local_dma_lkey(ic); } sent += len; rdsdebug("ic %p sent %d remote_addr %llu\n", ic, sent, remote_addr); remote_addr += len; scat++; } if (send->s_wr.opcode == IB_WR_RDMA_READ_WITH_INV) { send->s_wr.num_sge = 1; send->s_sge[0].addr = conn->c_xmit_rm->m_rs->rs_user_addr; send->s_sge[0].length = conn->c_xmit_rm->m_rs->rs_user_bytes; send->s_sge[0].lkey = ic->i_sends[fr_pos].s_mr->lkey; } rdsdebug("send %p wr %p num_sge %u next %p\n", send, &send->s_wr, send->s_wr.num_sge, send->s_wr.next); prev = send; if (++send == &ic->i_sends[ic->i_send_ring.w_nr]) send = ic->i_sends; } /* if we finished the message then send completion owns it */ if (scat == &op->op_sg[op->op_count]) first->s_wr.send_flags = IB_SEND_SIGNALED; if (i < work_alloc) { rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc - i); work_alloc = i; } /* On iWARP, local memory access by a remote system (ie, RDMA Read) is not * recommended. Putting the lkey on the wire is a security hole, as it can * allow for memory access to all of memory on the remote system. Some * adapters do not allow using the lkey for this at all. To bypass this use a * fastreg_mr (or possibly a dma_mr) */ if (!op->op_write) { rds_iw_build_send_fastreg(rds_iwdev, ic, &ic->i_sends[fr_pos], op->op_count, sent, conn->c_xmit_rm->m_rs->rs_user_addr); work_alloc++; } failed_wr = &first->s_wr; ret = ib_post_send(ic->i_cm_id->qp, &first->s_wr, &failed_wr); rdsdebug("ic %p first %p (wr %p) ret %d wr %p\n", ic, first, &first->s_wr, ret, failed_wr); BUG_ON(failed_wr != &first->s_wr); if (ret) { printk(KERN_WARNING "RDS/IW: rdma ib_post_send to %pI4 " "returned %d\n", &conn->c_faddr, ret); rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc); goto out; } out: return ret; } void rds_iw_xmit_complete(struct rds_connection *conn) { struct rds_iw_connection *ic = conn->c_transport_data; /* We may have a pending ACK or window update we were unable * to send previously (due to flow control). Try again. */ rds_iw_attempt_ack(ic); }
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-06 14:30:30 -0400