- 07 Apr, 2008 40 commits
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Martin Peschke authored
This patch allows any recovery event to be traced back to an exact cause, e.g. a particular request identified by an id (address). Signed-off-by:
Martin Peschke <mp3@de.ibm.com> Signed-off-by:
Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by:
James Bottomley <James.Bottomley@HansenPartnership.com>
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Martin Peschke authored
This patch writes a trace record which provides information about state changes for adapters, ports and units, e.g. target failure, targets becoming online, targets being temporarily blocked due to pending recovery, targets which have been recovered successfully etc. Signed-off-by:
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Martin Peschke authored
This patch writes trace records which provide information about the operation of the zfcp error recovery thread and the queues it works on. Signed-off-by:
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Martin Peschke authored
This patch registers the new recovery trace with the s390 debug feature. Signed-off-by:
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Martin Peschke authored
Introducing helper functions that allow for code simpfifications. Signed-off-by:
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Martin Peschke authored
This patch adds per request hardware debugging data to the trace record which is written per request. It's a replacement for some sad kernel message based debugging code. Considering the amount of trace data, printk() is not suitable for this stuff. Writing binary traces is more efficient. In addition we got all information in one place. The QTCB trace data is only dumped for requests other than SCSI requests. Otherwise we would flood the trace ring buffer. We are mostly interested in non-SCSI, recovery related requests here anyway. This patch also works around a known hardware bug. It truncates QTCB traces so that we do not save unused areas of the hardware trace. Signed-off-by:
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Martin Peschke authored
Is not appropriate to printk() tons of hardware trace data. Signed-off-by:
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Martin Peschke authored
Clean up _zfcp_san_dbf_event_common_els using zfcp_dbf_hexdump() helper. Signed-off-by:
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Martin Peschke authored
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FUJITA Tomonori authored
For example, `modprobe scsi_debug virtual_gb=1100` gives: scsi7 : scsi_debug, version 1.81 [20070104], dev_size_mb=8, opts=0x0 scsi 7:0:0:0: Direct-Access Linux scsi_debug 0004 PQ: 0 ANSI: 5 sd 7:0:0:0: [sdc] 2306867200 512-byte hardware sectors (1181116 MB) sd 7:0:0:0: [sdc] Write Protect is off sd 7:0:0:0: [sdc] Mode Sense: 73 00 10 08 sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA sd 7:0:0:0: [sdc] 2306867200 512-byte hardware sectors (1181116 MB) sd 7:0:0:0: [sdc] Write Protect is off sd 7:0:0:0: [sdc] Mode Sense: 73 00 10 08 sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA sdc: unknown partition table sd 7:0:0:0: [sdc] Attached SCSI disk sd 7:0:0:0: Attached scsi generic sg6 type 0 end_request: I/O error, dev sdc, sector 2306867072 Buffer I/O error on device sdc, logical block 288358384 end_request: I/O error, dev sdc, sector 2306867072 Buffer I/O error on device sdc, logical block 288358384 end_request: I/O error, dev sdc, sector 2306867192 (snip) Note that this converts all the calculations (including the correct calculations) for unification. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by:
Douglas Gilbert <dougg@torque.net> Signed-off-by:
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James Bottomley authored
There's a problem with the combination of the upstream power management fixes and the enabling of MSI by default in that the suspend path still uses the global variable. Convert it to check ioc->msi_enable. Cc: "Moore, Eric" <Eric.Moore@lsi.com> Cc: "Prakash, Sathya" <sathya.prakash@lsi.com> Signed-off-by: -
FUJITA Tomonori authored
Signed-off-by:
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by:
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FUJITA Tomonori authored
Signed-off-by:
Ed Lin <ed.lin@promise.com> Signed-off-by:
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FUJITA Tomonori authored
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FUJITA Tomonori authored
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FUJITA Tomonori authored
This adds scsi_build_sense_buffer, a simple helper function to build sense data in a buffer. Signed-off-by:
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Thomas Bogendoerfer authored
SGI machines with WD33C93 allow usage of burst mode DMA, which increases performance noticable. To make this selectable by the sgiwd93 stub, setting the values for no_sync, fast and dma_mode has been moved to the individual platform stubs. Signed-off-by:
Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Michael Reed authored
While performing hardware raid reset testing via the raid's client, I noticed that sometimes, following the reset, that there would be more raid targets in the lsscsi output than there actually were raid targets. I tracked this down to the following issue. Fusion cannot always find the mptsas_portinfo structure for the hba because it uses the handle stored in ioc->handle to locate it. The problem is that the firmware can change the handle associated with the hba when h/w raid is reset (via the raid client). When this happens, the driver will allocate another mptsas_portinfo structure and link it into the chain of said structures. This ultimately causes confusion within the driver resulting in targets not being removed when they should be. Eric Moore pointed out that the hba's portinfo structure is always the first structure on the sas_topology list. This patch modifies mptsas.c to access the hba's portinfo structure by taking the first structure on said list. Signed-off-by:
Michael Reed <mdr@sgi.com> Acked-by:
"Moore, Eric" <Eric.Moore@lsi.com> Signed-off-by:
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David C Somayajulu authored
This patch contains the following: 1. when hba completion status is good, check for iscsi transport errors (underflow/overflow) prior to checking the scsi status 2. New firmware requires that one marker iocb be issued for each task management command. The patch issues marker iocb immediately following a LUN or Target reset. Signed-off-by:
David C Somayajulu <david.somayajulu@qlogic.com> Signed-off-by:
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bo yang authored
Add the new Controller (ID: 007C) support to driver. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: -
bo yang authored
When Driver sent wrong frame count to firmware. As this particular command is sent to drive, FW is seeing continuous chip resets and so the command will timeout. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: -
bo yang authored
Sense buffer ptr data type in the ioctl path is reverted back to u32 * as in previous versions of driver. Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: -
Denis Cheng authored
The memory return from scsi_host_alloc is alloced by kzalloc, which is already zero initilized, so memset not needed. Signed-off-by:
Denis Cheng <crquan@gmail.com> Cc: Adam Radford <linuxraid@amcc.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Roel Kluin authored
This fixes a bug that we treat all sequencer operations as ands and never do the additional invalid bit checks non-and operations require because the if () to determine this has an operand which is always true at the end of the or statement. Signed-off-by:
Roel Kluin <12o3l@tiscali.nl> Acked-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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FUJITA Tomonori authored
This patch removes lots of function declarations with moving scsi_debug_queuecommand. This cleans up scsi_debug_queuecommand a bit to silence checkpatch.pl Signed-off-by:
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FUJITA Tomonori authored
This replaces list_for_each_safe and list_entry with list_for_each_entry_safe. Signed-off-by:
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FUJITA Tomonori authored
open_devip is always non NULL. Signed-off-by:
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FUJITA Tomonori authored
Two functions, sdebug_add_adapter and devInfoReg, creates new scsi_debug devices. To simplify the code, this patch adds a new helper function to create new scsi_debug devices (sdebug_device_create) and converts both functions to use it. I plan to add more to scsi_debug devices (e.g. using a thread for a scsi_debug device for scalability testings). This patch enable me to add such to just the new helper function instead of touching two functions, sdebug_add_adapter and devInfoReg. Signed-off-by:
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FUJITA Tomonori authored
sscanf can handle negative values. Signed-off-by:
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James Bottomley authored
This is needed by things like USB storage that want to set up static commands for later use at start of day. Signed-off-by: -
James Bottomley authored
Since the way we allocate commands with a separate sense buffer is getting complicated, we should isolate setup and teardown to a single routine so that if it gets even more complex, there's only one place in the code that needs to be altered. Signed-off-by: -
FUJITA Tomonori authored
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FUJITA Tomonori authored
This rewrites tw_transfer_internal with scsi_sg_copy_from/to_buffer. Signed-off-by:
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FUJITA Tomonori authored
This replaces stex_internal_copy with scsi_sg_copy_to/from_buffer. Signed-off-by:
James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by:
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FUJITA Tomonori authored
This replaces aac_internal_transfer with scsi_sg_copy_to/from_buffer. Signed-off-by:
Mark Salyzyn <Mark_Salyzyn@adaptec.com> Signed-off-by:
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FUJITA Tomonori authored
This rewrites ips_scmd_buf_write/read with scsi_sg_copy_from/to_buffer respectively. Signed-off-by:
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FUJITA Tomonori authored
This replaces simscsi_fillresult with scsi_sg_copy_from_buffer. Signed-off-by:
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FUJITA Tomonori authored
Note that if scsi_bufflen(cmd) is not zero, the command always has an sg list. So this patch doesn't do the error checking in fill_from_dev_buffer and fetch_to_dev_buffer did. Signed-off-by:
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FUJITA Tomonori authored
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FUJITA Tomonori authored
LLDs need to copies data between the SG table in struct scsi_cmnd and liner buffer. So they use the helper functions like sg_copy_from_buffer(scsi_sglist(sc), scsi_sg_count(sc), buf, buflen) sg_copy_to_buffer(scsi_sglist(sc), scsi_sg_count(sc), buf, buflen) This patch just adds wrapper functions: scsi_sg_copy_from_buffer(sc, buf, buflen) scsi_sg_copy_to_buffer(sc, buf, buflen) Signed-off-by:
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