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* [SCSI] Remove last page_address from dc395x.cGuennadi Liakhovetski2006-06-10
| | | | | | | Dynamically map scattergather buffer instead of using page_address(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] hptiop: HighPoint RocketRAID 3xxx controller driverHighPoint Linux Team2006-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HighPoint RocketRAID 3220/3320 series 8 channel PCI-X SATA RAID Host Adapters. Fixes from original submission: Merge Andrew Morton's patches: - Provide locking for global list - Fix debug printks - uninline function with multiple callsites - coding style fixups - remove unneeded casts of void* - kfree(NULL) is legal - Don't "succeed" if register_chrdev() failed - otherwise we'll later unregister a not-registered chrdev. - Don't return from hptiop_do_ioctl() with the spinlock held. - uninline __hpt_do_ioctl() Update for Arjan van de Ven's comments: - put all asm/ includes after the linux/ ones - replace mdelay with msleep - add pci posting flush - do not set pci command reqister in map_pci_bar - do not try merging sg elements in hptiop_buildsgl() - remove unused outstandingcommands member from hba structure - remove unimplemented hptiop_abort() handler - remove typedef u32 hpt_id_t Other updates: - fix endianess Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] remove the scsi_request interface from the gdth driverLeubner, Achim2006-06-10
| | | | | | | | | | Initial pass at converting the gdth driver away from the scsi_request interface so that the request interface can be removed post 2.6.18 without breaking gdth. Based on changes from Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] fix up request buffer reference in various scsi driversChristoph Hellwig2006-06-06
| | | | | | | | | | | | Various scsi drivers use scsi_cmnd.buffer and scsi_cmnd.bufflen in their queuecommand functions. Those fields are internal storage for the midlayer only and are used to restore the original payload after request_buffer and request_bufflen have been overwritten for EH. Using the buffer and bufflen fields means they do very broken things in error handling. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] megaraid_sas: switch fw_outstanding to an atomic_tSumant Patro2006-06-06
| | | | | | | | | This patch( originally submitted by Christoph Hellwig) removes instance_lock and changes fw_outstanding variable data type to atomic_t. Signed-off-by: Sumant Patro <Sumant.Patro@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: update version to 1.0-595Mike Christie2006-06-05
| | | | | Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: fix writepsace raceMike Christie2006-06-05
| | | | | | | | | | | | | | | We can race and misset the suspend bit if iscsi_write_space is called then iscsi_send returns with a failure indicating there is no space. To handle this this patch returns a error upwards allowing xmitworker to decide if we need to try and transmit again. For the no write space case xmitworker will not retry, and instead let iscsi_write_space queue it back up if needed (this relies on the work queue code to properly requeue us if needed). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: return task found during searchMike Christie2006-06-05
| | | | | | | | | from davidw@netapp.com: remove task type should return a task on success. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: fix run list corruptionMike Christie2006-06-05
| | | | | | | | | from davidw@netapp.com: We must grab the session lock when modifying the running lists. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: don't switch states when just cleaning upMike Christie2006-06-05
| | | | | | | | | | | | If recovery failed or we are in recovery only overwrite the state if we are going to terminate the session or if we logged back in. STOP_CONN_SUSPEND and conn_cnt are not used. We only support a single connection session ATM, so cleanup that code while we are working around it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] audit drivers for incorrect max_id useHannes Reinecke2006-05-28
| | | | | | | max_id now means the maximum number of ids on the bus, which means it is one greater than the largest possible id number. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] Return -EINVAL when "id == max_id" in scsi_scan_host_selected()Amit Arora2006-05-28
| | | | | | | | | | | | The scsi_scan_host_selected() should return -EINVAL when the id is equal to the max_id. Currently it uses ">" when comparing with max_id, and hence leaves the border case when "id==max_id". The channel and lun have values valid from 0 up to, and including, max_channel or max_lun. But, the valid values for id range from 0 to max_id-1. This patch fixes the problem. Signed-off-by: Amit Arora <aarora@in.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] imm: no need for unchecked_isa_dmaRandy Dunlap2006-05-20
| | | | | | | | | Relax the lowmem bounce buffer requirement for imm so that any low memory page will do -- they don't need to be below the ISA 16 MB limit, just need to be mapped in low memory. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Update version number to 8.01.05-k2.Andrew Vasquez2006-05-20
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Correct issue where driver improperly issued SNS commands in ↵Andrew Vasquez2006-05-20
| | | | | | | | | | | N2N topologies. Semantic changes in ISP24xx firmware behaviour inadvertently caused the driver to believe an F-port topology was present in an N_port-to-N_port configuration. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Consolidate firmware-dump handling across ISPs.Andrew Vasquez2006-05-20
| | | | | | | | Simplify and centralise buffer allocation/deallocation, as there's no point in having two memory request methods. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Consolidate "qla2xxx" string usage to a #define.Andrew Vasquez2006-05-20
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Use PCI_DEVICE() for pci_device_id definition.Andrew Vasquez2006-05-20
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Remove obsolete firmware-loader-module support.Andrew Vasquez2006-05-20
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Remove unused port-type RSCN handling code.Andrew Vasquez2006-05-20
| | | | | | | | | | | | | | | | | | | | | | Expandind on the previous commit: commit 79f89a4296ff22f09baf538d4ff2a6d0c3097a73 Author: andrew.vasquez@qlogic.com <andrew.vasquez@qlogic.com> Date: Fri Jan 13 17:05:58 2006 -0800 [SCSI] qla2xxx: Disable port-type RSCN handling via driver state-machine. and given: - the process-context requirements of the FC transport rport-APIs. - lack of port-type RSCN processing logic for ISP24xx and newer chips. it's time now to remove the state-machine logic from mainline. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Drop unused driver cruft.Andrew Vasquez2006-05-20
| | | | | | | | | - structure definitions. - structure members. - #define's. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Add support for alternate WWN NVRAM setting.Andrew Vasquez2006-05-20
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Correct endianess comparisons during ISP24xx NVRAM ↵Andrew Vasquez2006-05-20
| | | | | | | configuration. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: ABBA lock ordering fix.Andrew Vasquez2006-05-20
| | | | | | | | | | | | | | | In qla2x00_reset_chip the driver first takes the hardware lock, and then later on takes the mbx lock. In the mailbox_command code.. it goes the other way around. Discovered with the lock validator. Cc: Ingo Molnar <mingo@elte.hu> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Update ISP24xx firwmare loading heuristics.Andrew Vasquez2006-05-20
| | | | | | | | | If firmware image is unavailable via request_firwmare(), then attempt to load the image (likely out-of-date) stored in flash memory. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Use FW calculated residual count for underrun handling.Ravi Anand2006-05-20
| | | | | | | With ISP24XX and ISP54XX parts. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Add support for new flash part.Ravi Anand2006-05-20
| | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] qla2xxx: Don't wait for loop transition to complete if LOOP_DEAD ↵Ravi Anand2006-05-20
| | | | | | | state is attained. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: update versionMike Christie2006-05-20
| | | | | | | update version Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: fix command requeues during iscsi recoveryMike Christie2006-05-20
| | | | | | | | | | | | | | Do not flush queues then block session. This will cause commands to needlessly swing around on us and remove goofy recovery_failed field and replace with state value. And do not start recovery from within the host reset function. This causeis too many problems becuase open-iscsi was desinged to call out to userspace then have userpscae decide if we should go into recovery or kill the session. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: support mutiple daemonsMike Christie2006-05-20
| | | | | | | | | | Patch from david.somayajulu@qlogic.com and cleaned up by Tomo. qla4xxx is going to have a different daemon so this patch just routes the events to the right daemon. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: kill dtask mempoolsMike Christie2006-05-20
| | | | | | | | | | | | Discovered by steven@hayter.me.uk and patch by michaelc@cs.wisc.edu The dtask mempool is reserving 261120 items per session! Since we are now sending headers with sendmsg there is no reason for the mempool and that was causing us to us carzy amounts of mem. We can preallicate a header in the r2t and task struct and reuse them Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: only preallocate login bufferMike Christie2006-05-20
| | | | | | | | | We only use the mtask data buffer for login tasks so we do not need to preallocate a buffer for every mtask. This saves 8 * 31 KB. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: dont use sendpage for iscsi headersMike Christie2006-05-20
| | | | | | | | | | | | From Zhen and ported by Mike: Don't use sendpage for the headers. sendpage for the pdu headers does not seem to have a performance impact, makes life harder for mutiple data pdus to be in flight and still trips up some network cards when it is from slab mem. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] aacraid: remove unneeded listMark Haverkamp2006-05-20
| | | | | | | | | | Received From Mark Salyzyn The queue tracking is just not being used, not even for debugging. Information about outstanding commands can be acquired from the scsi structures. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] aacraid: sa race condition fixMark Haverkamp2006-05-20
| | | | | | | | | | Received From Mark Salyzyn A race condition existed that could result in a lost completion of a command to the ppc based cards. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] aacraid: adjustable timeoutsMark Haverkamp2006-05-20
| | | | | | | | | | | | | | | | | | | | | | | | Received From Mark Salyzyn Add the ability to adjust for unusual corner case failures. Both of these additional module parameters deal with embedded, non-intel or complicated system scenarios. Aif_timeout can be increased past the default 2 minute timeout to drop application registrations when a system has an unusually high event load resulting from continuing management requests, or simultaneous builds, or sluggish user space as a result of system load. Startup_timeout can be increased past the default 3 minute timeout to drop an adapter initialization for systems that have a very large number of targets, or slow to spin-up targets, or a complicated set of array configurations that extend the time for the firmware to declare that it is operational. This timeout would only have an affect on non-intel based systems, as the (more patient) BIOS would generally be where the startup delay would be dealt with. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] aacraid: optimize sg allocMark Haverkamp2006-05-20
| | | | | | | | | Received From Mark Salyzyn Slight space and speed efficiency improvement. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] aacraid: remove unneeded lockingMark Haverkamp2006-05-20
| | | | | | | | | | | Received From Mark Salyzyn Since new commands to the card are quiesced, respect the changes in the SCSI error path which dropped locking around the hba reset handler and similarly drop the lock requirement in the driver's path. Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] fix proc_scsi_write to return "length" on success with ↵James Bottomley2006-05-10
| | | | | | | | | | | | | | | | | | remove-single-device case Problem spotted by: Suzuki K P <suzuki@in.ibm.com> A zero return on success isn't correct for filesystem write functions. They should either return negative error or the length of bytes consumed. Add code to convert our zero on success error return to return the length of bytes passed in. This fixes the following: $ echo "scsi remove-single-device 0 0 3 0" > /proc/scsi/scsi bash: echo: write error: No such device or address" Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: dequeue all buffers from queueMike Christie2006-05-10
| | | | | | | | | | | | | | | | | | | | | | | | debugged by wrwhitehead@novell.com patch and analysis by fujita.tomonori@lab.ntt.co.jp Only tcp_read_sock and recv_actor (iscsi_tcp_data_recv for us) see desc.count. It is is used just for permitting tcp_read_sock to read the portion of data in the socket. When iscsi_tcp_data_recv sees a partial header, it sets desc.count. However, it is possible that the next skb (containing the rest of the header) still does not come. So I'm not sure that this scheme is completely correct. Ideally, we should use the exact length of the data in the socket for desc.count. However, it is not so simple (see SIOCINQ in tcp_ioctl). So I think that iscsi_tcp_data_recv can just stop playing with desc.count and tell tcp_read_sock to read the all skbs. As proposed already, if iscsi_tcp_data_ready sets desc.count to non-zero, tcp_read_sock does that. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: increment expstatsn during loginMike Christie2006-05-10
| | | | | | | | | | | | | | | debugged by Ming and Rohan: The problem Ming and Rohan debugged was that during a normal session login, open-iscsi is not incrementing the exp_statsn counter. It was stuck at zero. From the RFC, it looks like if the login response PDU has a successful status then we should be incrementing that value. Also from the RFC, it looks like if when we drop a connection then reconnect, we should be using the exp_statsn from the old connection in the next relogin attempt. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: align printksOr Gerlitz2006-05-10
| | | | | | | | align printk output Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: fix manamgement task oopsMike Christie2006-05-10
| | | | | | | | | | | | from patmans@us.ibm.com and michaelc@cs.wisc.edu Fix bugs when forcing a mgmt task to fail and allow session recovery to cleanup the session/connection of any running mgmt tasks. When called during the in login state. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: add transport end point callbacksOr Gerlitz2006-05-10
| | | | | | | | | | add transport end point callbacks so iscsi drivers that cannot connect from userspace, like iscsi tcp, using sockets do not have to implement their own socket infrastructure. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] scsi_lib.c: fix warning in scsi_kmap_atomic_sgAndrew Morton2006-04-19
| | | | | | | | | drivers/scsi/scsi_lib.c: In function `scsi_kmap_atomic_sg': drivers/scsi/scsi_lib.c:2394: warning: unsigned int format, different type arg (arg 3) drivers/scsi/scsi_lib.c:2394: warning: unsigned int format, different type arg (arg 4) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] scsi_scan.c: fix compile warningsakpm@osdl.org2006-04-15
| | | | | | | | | | | | | | drivers/scsi/scsi_scan.c: In function `scsi_probe_and_add_lun': drivers/scsi/scsi_scan.c:926: warning: unused variable `vend' drivers/scsi/scsi_scan.c:926: warning: unused variable `mod' drivers/scsi/scsi_scan.c: At top level: drivers/scsi/scsi_scan.c:829: warning: `scsi_inq_str' defined but not used Fix those, tighten up the (somewhat poorly-designed) logging macro and fix some coding-style warts. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] dc395x: dynamically map scatter-gather for PIOGuennadi Liakhovetski2006-04-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current dc395x driver uses PIO to transfer up to 4 bytes which do not get transferred by DMA (under unclear circumstances). For this the driver uses page_address() which is broken on highmem. Apart from this the actual calculation of the virtual address is wrong (even without highmem). So, e.g., for reading it reads bytes from the driver to a wrong address and returns wrong data, I guess, for writing it would just output random data to the device. The proper fix, as suggested by many, is to dynamically map data using kmap_atomic(page, KM_BIO_SRC_IRQ) / kunmap_atomic(virt). The reason why it has not been done until now, although I've done some preliminary patches more than a year ago was that nobody interested in fixing this problem was able to reliably reproduce it. Now it changed - with the help from Sebastian Frei (CC'ed) I was able to trigger the PIO path. Thus, I was also able to test and debug it. There are 4 cases when PIO is used in dc395x - data-in / -out with and without scatter-gather. I was able to reproduce and test only data-in with and without SG. So, the data-out path is still untested, but it is also somewhat simpler than the data-in. Fredrik Roubert (also CC'ed) also had PIO triggering on his system, and in his case it was data-out without SG. It would be great if he could test the attached patch on his system, but even if he cannot, I would still request to apply the patch and just wait if anybody cries... Implementation: I put 2 new functions in scsi_lib.c and their declarations in scsi_cmnd.h. I exported them without _GPL, although, I don't feel strongly about that - not many drivers are likely to use them. But there is at least one more - I want to use them in tmscsim.c. Whether these are the right files for the functions and their declarations - not sure either. Actually, they are not scsi-specific, so, might go somewhere around other scattergather magic? They are not platform specific either, and most SG functions are defined under arch/*/... As these issues were discussed previously there were some more routines suggested to manipulate scattergather buffers, I think, some of them were needed around crypto code... So, might be a common place reasonable, like lib/scattergather.c? I am open here. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] ibmvscsi: convert kmalloc + memset to kcallocFUJITA Tomonori2006-04-14
| | | | | | | | Convert kmalloc + memset to kcalloc in ibmvscsi Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge ../scsi-rc-fixes-2.6James Bottomley2006-04-14
|\ | | | | | | | | | | | | | | | | | | Conflicts: include/scsi/scsi_devinfo.h Same number for two BLIST flags: BLIST_MAX_512 and BLIST_ATTACH_PQ3 Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>