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AgeCommit message (Collapse)Author
2014-12-15convert bcopy to memcpy. ok dlg krwTed Unangst
2014-09-20Fix bug in taskq conversion that would lead to a null pointer dereference.Mark Kettenis
ok krw@, jsg@
2014-09-18Some disks, such as the Seagate Cheetah 73LP FC with Sun firmwareMark Kettenis
(ST373405FSUN72G) respond to a START STOP UNIT command that spins down the disk with a "Logical Unit Not Ready, Initialization Command Required". Besides causing some dmesg spam, our sd(4) driver responds to such a response by spinning the disk back up. Prevent this from happening by respecting the SCSI_IGNORE_NOT_READY flag and using that flag when spinning down the disk. ok miod@
2014-09-14remove uneeded proc.h includesJonathan Gray
ok mpi@ kspillner@
2014-09-13Replace all queue *_END macro calls except CIRCLEQ_END with NULL.Doug Hogan
CIRCLEQ_* is deprecated and not called in the tree. The other queue types have *_END macros which were added for symmetry with CIRCLEQ_END. They are defined as NULL. There's no reason to keep the other *_END macro calls. ok millert@
2014-09-09remove the scsi_task() wrapper around workq_add_task now that nothingDavid Gwynne
uses it. dont need to include workq.h anymore here either now.
2014-09-09rework the hotplug requests to use tasks rather than workqs.David Gwynne
tested on mpi(4) sas.
2014-07-13use mallocarray where arguments are multiplied; ok teduTheo de Raadt
2014-07-12add a size argument to free. will be used soon, but for now default to 0.Ted Unangst
after discussions with beck deraadt kettenis.
2014-07-10Now that sd(4) drives under softraid0 have their cache flushed whenMartin Pieuchot
DVACT_POWERDOWN is propagated in this subtree, there is no need for this shutdown hook anymore. RIP. ok kettenis@
2014-07-01take the biglock before calling the xs completion handler.David Gwynne
should be safe to call the midlayer io path without the biglock now.
2014-07-01take the biglock when calling an adapters scsi_cmd handler.David Gwynne
2014-07-01start on being able to safely run io through the midlayer withoutDavid Gwynne
the kernel biglock. the plan is to have the midlayer assume its running without the biglock, but that it cant call adapters or devices without taking the biglock first. this diff just wraps the calls to the adapter iopool get and put handlers up in the biglock. this is safe now because of kettenis' commit to src/sys/kern/init_main.c r1.120. ive been running this in various places since early 2011.
2014-05-01move pointer use to after a NULL pointer checkJonathan Gray
ok dlg@
2014-04-22factor out the code that figures out whether you're probing or detachingDavid Gwynne
a whole bus, a target, or a specific lun on a target from the bioctl and scsi_req paths. i want to reuse this factored code for something claudio wants.
2014-04-20make the status handler more like rdac and emc. the big functional changeDavid Gwynne
is to check xs->status on completion to make sure it worked.
2014-04-19move scsi_xs_put after checks that use fields in the xsJonathan Matthew
ok dlg@
2014-04-19implement emc_mpath_checksense() according to what my cx500 throws.David Gwynne
tested by jmatthew@
2014-04-17rework this to implement the active path checks when mpath asks forDavid Gwynne
it rather than on attach. just need to implement a sense handler to detect failover and this is done. thanks to jmatthew@ for plugging this together again for me.
2014-04-03massage the preferred path detection to happen when mpath asks forDavid Gwynne
a paths status, rather than on attach. the status it returns depends on the type of device you have. hds provides two types of arrays, symmetric and asymmetric. on a symmetric device you can shove io down any path to any port on any controller and it will work. on symmetric devices we say all paths are part of the same group, and unconditionally return active path status to any check request. on asymmetric devices we group paths by which controller in teh array they connect to. the controllers return whether theyre providing a preferred path via a couple of status bits in a hds specific vpd page, so we query that and return the state of the bits. unfortunately hds arrays dont report change of lun ownership in any way, so we dont currently have any way of failing over at the moment. ill have to think about the least worst way to handle that. tested by deraadt@ on hppa
2014-04-02whitespace fix, no functional changeDavid Gwynne
2014-04-02skey == SKEY_ILLEGAL_REQUEST && ASC_ASCQ(sense) == 0x9401 meansDavid Gwynne
invalid request due to current lu ownership
2014-02-19If a disk returns a size of 0, treat it as an error to let theMartin Pieuchot
driver re-probe for its capacity. Allow to fully recognized Lexar JumpDrive S33 USB 3.0 sticks. ok krw@, dlg@
2014-02-13if an attached sd(4) is readonly, make sure it's noticable in theAlexander Hall
dmesg, or write operations just fail with EACCES for no obvious reason ok krw@ tedu@
2014-01-31SUNW SUNWGS INT FCBPL can be considered an asym device now we can uniquelyDavid Gwynne
identify them over multiple paths using their wwnn.
2014-01-31if a device doesnt have device ids or serial numbers, try using node_wwn toDavid Gwynne
generate a devid. if its an fc device this is good enough.
2014-01-30SGI branded seagate disks work fineDavid Gwynne
2014-01-27poison the io "allocated" by the default pool allocator so any attempt toDavid Gwynne
use it should cause a fault. based on discussion with miod@
2014-01-18rename scsi_ioh_runqueue to scsi_iopool_run, and make it availableDavid Gwynne
outside scsi_base.c. this will allow adapters to restrict access to iopool resources based on some state, and then kick the pending requests on the pool when the state comes good again. ive been avoiding this for a long time, but it is the least worst way to deal with some uses of XS_NO_CCB. discussion with kettenis@ helped me decide this was right.
2013-12-06Add a DVACT_WAKEUP op to the *_activate() API. This is called after theTheo de Raadt
kernel resumes normal (non-cold, able to run processes, etc) operation. Previously we were relying on specific DVACT_RESUME op's in drivers creating callback/threads themselves, but that has become too common, indicating the need for a built-in mechanism. ok dlg kettenis, tested by a sufficient amount of people
2013-11-261 << 31 cleanup. Eitan Adler pointed out that there has been aTheo de Raadt
resurrection of the bad idiom in the tree. sufficient review by miod, kettenis, tedu
2013-11-23fix format string; OK deraadt@Gleydson Soares
2013-11-01Sprinkle (long long) casts where %lld is being used to print daddr_tKenneth R Westerback
variables. Some random whitespace/knf repairs encountered on the way. ok miod@ on inspection, feedback & more suggestions from millert@
2013-10-07typoMiod Vallat
2013-10-03Print daddr_t variables with %lld, u_int64_t variables with %llu.Kenneth R Westerback
2013-10-02Use u_int64_t instead of daddr_t parameters to sd_cmd_rw*() functions.Kenneth R Westerback
Ditto disksize field of sd_softc and a couple of local calculation variables. scsi/* now daddr_t clean except where they really are 512-byte blocks.
2013-09-27scsi_size() is now used only by cd(4). So move it from scsi_base.cKenneth R Westerback
to cd.c and call it cd_size(), like sd_size() lives in sd.c. Tweak some daddr_t variables to u_int64_t on the way, when they are for disk sector numbers, not 512-byte block numbers.
2013-09-19Tweak types to keep daddr_t address and sector address separate.Kenneth R Westerback
Prefer DL_ macros over handrolling. Fix the loop to allow for bigger (highly unlikely) bunches of bits to be broken up into rw_10 sized (<= UINT32_MAX sectors) chunks. Add check to make sure i/o request starts at a sector address.
2013-09-15cddump() takes a daddr_t parameter. Call that parameter 'blkno' and notKenneth R Westerback
'secno'. This is what sddump() already does and consistant is good. No function change.
2013-09-15Use DL_SECTOBLK() and DL_BLKTOSEC() to clarify code and removeKenneth R Westerback
repeated handrolling of same code. Use daddr_t variable to calculate daddr_t return values, and u_int64_t variables to calculate disk sector values. No functional change.
2013-09-08fix next path selection so if the current path is NULL (which can occur ifDavid Gwynne
paths are lost and groups become empty) we dont try and do stuff with it that causes null derefs and awesome panics.
2013-09-03DELL MD3060e worksDavid Gwynne
2013-08-29rename scsi_sem_{enter,leave} to scsi_pending_{start,finish}. these areDavid Gwynne
the wrappers around handling of pending work, theyre not semaphores. names from tedu@ ok krw@ guenther@
2013-08-27make path driver match routes return 8 so they will definitely be higherDavid Gwynne
than the real device drivers. ses returns 3 on some dells, which could be confusing for autoconf if it has to decide between that and a path driver.
2013-08-27get rid of the different path scheduler types, which simplifies theDavid Gwynne
code that picks the next path. we assume roundrobin within a group of paths now. the asym sym(4) devices work around this by putting every path in its own group.
2013-08-27these were forgotten in the change from pointing paths to groups insteadDavid Gwynne
of devices. fixes compilation when theyre enabled. how embarrassment.
2013-08-27make scsi_sem_leave only run again once, no matter how many timesDavid Gwynne
other things scsi_sem_enter. the things protected by this do as much work as they can, so they only need to be told to try again once. this isnt a semaphore anymore (and probably never was) so there's a name change coming too.
2013-08-26implement handling of group failover.David Gwynne
if a controller sends sense data back, the path driver can tell mpath that its indicating failover which kicks off an iteration over all the groups until one says its active. if no groups claim to be active, a timeout fires the process off again after a second. you can start controller handover on rdac (well, an md3200i is all i had to test with, others might need more work) and everything keeps going. ill try to get to emc and hds working when i can poke hardware again.
2013-08-26feng shuiDavid Gwynne
2013-08-26all paths are considered active, not in some unknown state.David Gwynne
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