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2006-08-29[SCSI] aic94xx: new driverJames Bottomley
This is the end point of the separate aic94xx driver based on the original driver and transport class from Luben Tuikov <ltuikov@yahoo.com> The log of the separate development is: Alexis Bruemmer: o aic94xx: fix hotplug/unplug for expanderless systems o aic94xx: disable split completion timer/setting by default o aic94xx: wide port off expander support o aic94xx: remove various inline functions o aic94xx: use bitops o aic94xx: remove queue comment o aic94xx: remove sas_common.c o aic94xx: sas remove depot's o aic94xx: use available list_for_each_entry_safe_reverse() o aic94xx: sas header file merge James Bottomley: o aic94xx: fix TF_TMF_NO_CTX processing o aic94xx: convert to request_firmware interface o aic94xx: fix hotplug/unplug o aic94xx: add link error counts to the expander phys o aic94xx: add transport class phy reset capability o aic94xx: remove local_attached flag o Remove README o Fixup Makefile variable for libsas rename o Rename sas->libsas o aic94xx: correct return code for sas_discover_event o aic94xx: use parent backlink port o aic94xx: remove channel abstraction o aic94xx: fix routing algorithms o aic94xx: add backlink port o aic94xx: fix cascaded expander properties o aic94xx: fix sleep under lock o aic94xx: fix panic on module removal in complex topology o aic94xx: make use of the new sas_port o rename sas_port to asd_sas_port o Fix for eh_strategy_handler move o aic94xx: move entirely over to correct transport class formulation o remove last vestages of sas_rphy_alloc() o update for eh_timed_out move o Preliminary expander support for aic94xx o sas: remove event thread o minor warning cleanups o remove last vestiges of id mapping arrays o Further updates o Convert aic94xx over entirely to the transport class end device and o update aic94xx/sas to use the new sas transport class end device o [PATCH] aic94xx: attaching to the sas transport class o Add missing completion removal from prior patch o [PATCH] aic94xx: attaching to the sas transport class o Build fixes from akpm Jeff Garzik: o [scsi aic94xx] Remove ->owner from PCI info table Luben Tuikov: o initial aic94xx driver Mike Anderson: o aic94xx: fix panic on module insertion o aic94xx: stub out SATA_DEV case o aic94xx: compile warning cleanups o aic94xx: sas_alloc_task o aic94xx: ref count update o aic94xx nexus loss time value o [PATCH] aic94xx: driver assertion in non-x86 BIOS env Randy Dunlap: o libsas: externs not needed Robert Tarte: o aic94xx: sequence patch - fixes SATA support Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06[SCSI] Improve inquiry printingMatthew Wilcox
- Replace scsi_device_types array API with scsi_device_type function API. Gets rid of a lot of common code, as well as being easier to use. - Add the new device types in SPC4 r05a, and rename some of the older ones. - Reformat the printing of inquiry data; now fits on one line and includes PQ. I think I've addressed all the feedback from the previous versions. My current test box prints: scsi 2:0:1:0: Direct access HP 18.2G ATLAS10K3_18_SCA HP05 PQ: 0 ANSI: 2 Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28[SCSI] fix scsi process problems and clean up the target reap issuesJames Bottomley
In order to use the new execute_in_process_context() API, you have to provide it with the work storage, which I do in SCSI in scsi_device and scsi_target, but which also means that we can no longer queue up the target reaps, so instead I moved the target to a state model which allows target_alloc to detect if we've received a dying target and wait for it to be gone. Hopefully, this should also solve the target namespace race. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-14[PATCH] add scsi_execute_in_process_context() APIJames Bottomley
We have several points in the SCSI stack (primarily for our device functions) where we need to guarantee process context, but (given the place where the last reference was released) we cannot guarantee this. This API gets around the issue by executing the function directly if the caller has process context, but scheduling a workqueue to execute in process context if the caller doesn't have it. Unfortunately, it requires memory allocation in interrupt context, but it's better than what we have previously. The true solution will require a bit of re-engineering, so isn't appropriate for 2.6.16. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-01-14[SCSI] remove target parent limitiationChristoph Hellwig
When James Smart fixed the issue of the userspace scan atributes crashing the system with the FC transport class he added a patch to let the transport class check if the parent is valid for a given transport class. When adding support for the integrated raid of fusion sas devices we ran into a problem with that, as it didn't allow adding virtual raid volumes without the transport class knowing about it. So this patch adds a user_scan attribute instead, that takes over from scsi_scan_host_selected if the transport class sets it and thus lets the transport class control the user-initiated scanning. As this plugs the hole about user-initiated scanning the target_parent hook goes away and we rely on callers of the scanning routines to do something sensible. For SAS this meant I had to switch from a spinlock to a mutex to synchronize the topology linked lists, in FC they were completely unsynchronized which seems wrong. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-10Merge /spare/repo/linux-2.6/Jeff Garzik
2005-07-11[SCSI] add TYPE_RBC to our type tableJames Bottomley
Here's a tiny update that means we print the correct ASCII type information Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-22Merge /spare/repo/linux-2.6/Jeff Garzik
2005-05-26[SCSI] TYPE_RBC cache fixes (sbp2.c affected)Al Viro
a) TYPE_SDAD renamed to TYPE_RBC and taken to scsi.h b) in sbp2.c remapping of TYPE_RPB to TYPE_DISK turned off c) relevant places in midlayer and sd.c taught to accept TYPE_RBC d) sd.c::sd_read_cache_type() looks into page 6 when dealing with TYPE_RBC - these guys have writeback cache flag there and are not guaranteed to have page 8 at all. e) sd_read_cache_type() got an extra sanity check - it checks that it got the page it asked for before using its contents. And screams if mismatch had happened. Rationale: there are broken devices out there that are "helpful" enough to go for "I don't have a page you've asked for, here, have another one". For example, PL3507 had been caught doing just that... f) sbp2 sets sdev->use_10_for_rw and sdev->use_10_for_ms instead of bothering to remap READ6/WRITE6/MOD_SENSE, so most of the conversions in there are gone now. Incidentally, I wonder if USB storage devices that have no mode page 8 are simply RBC ones. I haven't touched that, but it might be interesting to check... Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20[SCSI] add scsi changer driverGerd Knorr
This patch adds a device driver for scsi media changer devices. Signed-off-by: Gerd Knorr <kraxel@bytesex.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-12[libata] ATA passthru (arbitrary ATA command execution)Jeff Garzik
Authors: Brett Russ <russb@emc.com> John W. Linville <linville@tuxdriver.com> Andy Warner <andyw@pobox.com>
2005-04-18scsi: add DID_REQUEUE to the error handling
We have a DID_IMM_RETRY to require a retry at once, but we could do with a DID_REQUEUE to instruct the mid-layer to treat this command in the same manner as QUEUE_FULL or BUSY (i.e. halt the submission until another command returns ... or the queue pressure builds if there are no outstanding commands). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18[PATCH] consolidate timeout defintions in scsi.h
Adapted from a patch in SuSE's kernel SRPM. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!