An error occurred fetching the project authors.
- 12 Oct, 2007 1 commit
-
-
Heiko Carstens authored
Also removes a bunch of ^L in drivers/s390/cio/cmf.c Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
-
- 18 Jul, 2007 1 commit
-
-
Swen Schillig authored
Memory allocated with kmalloc is always initialzed to 0 with memset. Replace the two calls with kzalloc, that already does both steps. Signed-off-by:
Swen Schillig <swen@vnet.ibm.com> Signed-off-by:
James Bottomley <James.Bottomley@SteelEye.com>
-
- 19 Jun, 2007 1 commit
-
-
Volker Sameske authored
In some cases we did not reset some adapter status flags properly. This patch clears these flags during FCP adapter shutdown. Signed-off-by:
Volker Sameske <sameske@de.ibm.com> Signed-off-by:
-
- 08 May, 2007 4 commits
-
-
Heiko Carstens authored
Must clear adapter failed flag if an fsf request times out. This is necessary because on link down situations the failed flags gets set but the QDIO queues are still up. Since an adapter reopen will be skipped if the failed flag is set an adapter_reopen that is issued on fsf request timeout has no effect if the local link is down. Might lead to locked up system if the SCSI stack is waiting for abort completion. Signed-off-by:
-
Heiko Carstens authored
Simplify request ID management and make sure that frequently used functions are inlined. Also fix a memory leak in zfcp_adapter_enqueue() which only gets hit in error handling. Signed-off-by:
-
Christof Schmitt authored
The SCSI stack requires low level drivers to register and unregister devices. For zfcp this leads to the situation where zfcp calls the SCSI stack, the SCSI tries to scan the new device and the scan SCSI command fails. This would require the zfcp erp, but the erp thread is already blocked in the register call. The fix is to make sure that the calls from the ERP thread to the SCSI stack do not block the ERP thread. In detail: 1) Use a workqueue to avoid blocking of the scsi_scan_target calls. 2) When removing a unit make sure that no scsi_scan_target call is pending. 3) Replace scsi_flush_work with scsi_target_unblock. This avoids blocking and has the same result. Signed-off-by:
Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by:
-
Christof Schmitt authored
S_ID and D_ID are defined in the FCP spec as 3 byte fields. Change the output in zfcp print statements accordingly to print them with only 3 bytes. Signed-off-by:
-
- 01 Apr, 2007 1 commit
-
-
Christof Schmitt authored
Correctly initialize the timer for FSF requests with jiffies + timeout. Cc: Swen Schillig <swen@vnet.ibm.com> Acked-by:
-
- 10 Feb, 2007 2 commits
-
-
Swen Schillig authored
commit 07a105136f07f0cf1b476383e43033b8a65e13ff Author: Swen Schillig <swen@vnet.ibm.com> Date: Fri Feb 9 09:58:09 2007 +0100 removed wrong comment Signed-off-by:
-
Swen Schillig authored
commit 988d955c3314336d716a9208f3d565b06f262e07 Author: Swen Schillig <swen@vnet.ibm.com> Date: Fri Feb 9 09:40:11 2007 +0100 Use of uninitialized variable. ERP action might not be finished accordingly. Signed-off-by:
-
- 05 Feb, 2007 1 commit
-
-
Heiko Carstens authored
Signed-off-by:
-
- 10 Oct, 2006 1 commit
-
-
Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
-
- 23 Sep, 2006 2 commits
-
-
Andreas Herrmann authored
Fix the fix ... One of my previous fixes introduced removal of all fsf requests in zfcp's eh_host_reset_handler. But this must not happen before qdio queues are shut down. So, I revert the changes of zfcp_scsi_eh_host_reset_handler. Signed-off-by:
Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by:
-
Andreas Herrmann authored
This instance will be used whenever a timer is needed for a request by zfcp. Signed-off-by:
-
- 06 Aug, 2006 2 commits
-
-
Andreas Herrmann authored
Bug fixes for zfcp's erp: - trigger adapter reopen if do_QDIO fails - avoid erp deadlock if registration of scsi target or remote port hang - do not treat as error if exchange port data fails - decrease timeout for target reset and aborts - mark unit failed if slave_destroy is called Additionally some code cleanup was done: - made some functions void when retval is not of interest - shortened initialization of zfcp's host_template - corrected some comments Signed-off-by:
-
Volker Sameske authored
Improve request handling. Use hash table to manage request IDs. Signed-off-by:
-
- 04 Jul, 2006 1 commit
-
-
Heiko Carstens authored
================================= [ INFO: inconsistent lock state ] --------------------------------- inconsistent {hardirq-on-W} -> {in-hardirq-W} usage. swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes: (&adapter->erp_lock){+-..}, at: [<000000000026c7f8>] zfcp_erp_async_handler+0x3c/0x70 {hardirq-on-W} state was registered at: [<000000000005f33e>] __lock_acquire+0x30a/0xed0 [<00000000000604ae>] lock_acquire+0x9a/0xc8 [<000000000035a7ae>] _write_lock+0x4e/0x68 [<000000000026d822>] zfcp_erp_adapter_strategy_generic+0x286/0xd94 [<000000000026fd72>] zfcp_erp_strategy_do_action+0x91e/0x1a94 [<0000000000271a3a>] zfcp_erp_thread+0x21a/0x1568 [<0000000000019096>] kernel_thread_starter+0x6/0xc [<0000000000019090>] kernel_thread_starter+0x0/0xc irq event stamp: 12078 hardirqs last enabled at (12077): [<0000000000019416>] cpu_idle+0x206/0x250 hardirqs last disabled at (12078): [<0000000000020458>] io_no_vtime+0xc/0x1c softirqs last enabled at (12072): [<0000000000040b62>] __do_softirq+0x13a/0x180 softirqs last disabled at (12059): [<000000000001fd58>] do_softirq+0xec/0xf0 other info that might help us debug this: no locks held by swapper/0. stack backtrace: 00000000012bb648 0000000000000002 0000000000000000 00000000012bb758 00000000012bb6c0 0000000000399122 0000000000399122 0000000000016b0a 0000000000000000 0000000000000001 0000000000000000 00000000004660e8 0000000000000000 000000000000000d 00000000012bb6b8 00000000012bb730 0000000000368b90 0000000000016b0a 00000000012bb6b8 00000000012bb708 Call Trace: ([<0000000000016a26>] show_trace+0x76/0xdc) [<0000000000016b2c>] show_stack+0xa0/0xd0 [<0000000000016b8a>] dump_stack+0x2e/0x3c [<000000000005e3da>] print_usage_bug+0x27e/0x290 [<000000000005e934>] mark_lock+0x548/0x6c0 [<000000000005fb0c>] __lock_acquire+0xad8/0xed0 [<00000000000604ae>] lock_acquire+0x9a/0xc8 [<000000000035a662>] _write_lock_irqsave+0x62/0x80 [<000000000026c7f8>] zfcp_erp_async_handler+0x3c/0x70 [<0000000000279178>] zfcp_fsf_req_dispatch+0xd8/0x1fa8 [<000000000027e538>] zfcp_fsf_req_complete+0x104/0xe4c [<0000000000274534>] zfcp_qdio_reqid_check+0xf4/0x178 [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430 [<0000000000219dd4>] tiqdio_thinint_handler+0xd20/0x213c [<000000000020229a>] do_adapter_IO+0xb2/0xc0 [<0000000000206f32>] do_IRQ+0x136/0x16c [<0000000000020462>] io_no_vtime+0x16/0x1c [<0000000000019432>] cpu_idle+0x222/0x250 ([<0000000000019416>] cpu_idle+0x206/0x250) [<000000000001405a>] rest_init+0x5a/0x68 [<0000000000536998>] start_kernel+0x39c/0x3dc [<0000000000013046>] _stext+0x46/0x1000 Fix incorrect usage of erp_lock. Using the write_lock() variant is wrong, since this might lead to deadlocks. Acked-by:Andrew Morton <akpm@osdl.org> Signed-off-by:
-
- 26 Jun, 2006 1 commit
-
-
Andreas Mohr authored
acquired (aquired) contiguous (contigious) successful (succesful, succesfull) surprise (suprise) whether (weather) some other misspellings Signed-off-by:
Andreas Mohr <andi@lisas.de> Signed-off-by:
Adrian Bunk <bunk@stusta.de>
-
- 28 May, 2006 6 commits
-
-
Andreas Herrmann authored
If zfcp's port erp fails we now call fc_remote_port_delete. This helps to avoid offlined scsi devices if scsi commands time out due to path failures. When an adapter erp fails we call fc_remote_port_delete for all ports on that adapter. Signed-off-by:
-
Ralph Wuerthner authored
Signed-off-by:
Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by:
-
Andreas Herrmann authored
Removed some macros, struct members and typedefs which were unused or not necessary. Signed-off-by:
-
Andreas Herrmann authored
Replace kmalloc/memset by kzalloc or kcalloc. Signed-off-by:
-
Andreas Herrmann authored
Removed some useless comments. Signed-off-by:
-
Andreas Herrmann authored
Copyright update, shortened file headers, shortened author information. Signed-off-by:
-
- 10 Mar, 2006 1 commit
-
-
Andreas Herrmann authored
The patch fixes following issues: (1) Replace scsi_add_device with scsi_scan_target. (Thus the rport instead of the scsi_host becomes parent of a scsi_target again.) (2) Avoid scsi_device allocation during registration of an remote port. (Would be done during fc_scsi_scan_rport.) (3) Fix queuecommand behaviour when an zfcp unit is blocked. (Call scsi_done with DID_NO_CONNECT instead of returning SCSI_MLQUEUE_DEVICE_BUSY otherwise we might end up waiting for completion in blk_execute_rq for ever.) Signed-off-by:
-
- 12 Feb, 2006 2 commits
-
-
Andreas Herrmann authored
Flush workqueue of a scsi host after a remote port for that host is registered at the fc transport class. Otherwise immediate registration of a scsi device on that host is racy. Signed-off-by:
-
Andreas Herrmann authored
Remove endless polling for replug of the local link. Just wait for link up notification. Signed-off-by:
-
- 01 Feb, 2006 1 commit
-
-
Heiko Carstens authored
- Remove all CVS generated information like e.g. revision IDs from drivers/s390 and include/asm-s390 (none present in arch/s390). - Add newline at end of arch/s390/lib/Makefile to avoid diff message. Acked-by:
Frank Pavlic <pavlic@de.ibm.com> Signed-off-by:
-
- 15 Jan, 2006 1 commit
-
-
Adrian Bunk authored
Signed-off-by:
-
- 14 Jan, 2006 1 commit
-
-
Andreas Herrmann authored
Replaced zfcp adapter attributes with fc_host attributes: fc_topology by port_type, physical_wwpn by permanent_port_name. Make use of fc_host attribute supported_speeds. Removed zfcp adapter attribute physical_s_id. Signed-off-by:
-
- 01 Dec, 2005 2 commits
-
-
Andreas Herrmann authored
Fixed various problems in opening sequence of adapters which was previously changed with NPIV support: o corrected handling when exchange port data function is not supported, otherwise adapters on z900 cannot be opened anymore o corrected setup of timer for exchange port data if called from error recovery o corrected check of return code of exchange config data Signed-off-by:
-
Heiko Carstens authored
Move initialization of locks and lists to adapter allocation function. Otherwise we might end up with some uninitialized locks, like e.g. the erp locks which only will be inititialized if an error recovery thread for an adapter will be started. Signed-off-by:
-
- 19 Sep, 2005 3 commits
-
-
Andreas Herrmann authored
this patch adds some fc host attributes and removes its equivalents from the zfcp_adapter structure and zfcp specific sysfs subtree. Furthermore it removes superfluous calls to fc_remort_port_delete when an adapter is set offline because rports will be removed by fc_remove_host anyway. Signed-off-by:
-
Maxim Shchetynin authored
N_Port ID Virtualization (NPIV) allows a single FCP port to appear as multiple, distinct ports providing separate port identification. NPIV is supported by FC HBAs on System z9. zfcp was adapted to support this new feature. Signed-off-by:
-
Andreas Herrmann authored
o always use locking when changing erp_action lists, o avoid escalation to ERP_ACTION_REOPEN_PORT_FORCED if erp_action is still in use for ERP_ACTION_REOPEN_PORT Signed-off-by:
-
- 27 Aug, 2005 1 commit
-
-
Andreas Herrmann authored
This patch fixes a severe problem with 2.6.13-rc7. Due to recent SCSI changes it is not possible to add any LUNs to the zfcp device driver anymore. With registration of remote ports this is fixed. Signed-off-by:
James Bottomley <jejb@steeleye.com> Signed-off-by:
-
- 14 Jun, 2005 4 commits
-
-
Andreas Herrmann authored
From: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by:
-
Andreas Herrmann authored
Fixes a race between zfcp_fsf_req_dismiss_all and zfcp_qdio_reqid_check. During adapter shutdown it occurred that a request was cleaned up twice. First during its normal completion. Second when dismiss_all was called. The fix is to serialize access to fsf request list between zfcp_fsf_req_dismiss_all and zfcp_qdio_reqid_check and delete a fsf request from the list if its completion is triggered. (Additionally a rwlock was replaced by a spinlock and fsf_req_cleanup was eliminated.) Signed-off-by:
-
Andreas Herrmann authored
From: Maxim Shchetynin <maxim@de.ibm.com> Fixes a bug in zfcp_send_els_handler. If D_ID assignments for ports are changing between initiation of one ELS request and its completion the wrong port might be accessed in the completion for that ELS request. Thus a pointer to the port has to be passed for ELS requests to identify the port structure if required. Signed-off-by:
-
Andreas Herrmann authored
From: Maxim Shchetynin <maxim@de.ibm.com> Extend the time for adapter initialization: In case of protocol status HOST_CONNECTION_INITIALIZING for the exchange config data command do a first retry in 1 second, then double the sleep time for each following retry until recovery exceeds 2 minutes. The old behaviour of allowing 6 retries with .5 seconds delay between retries was insufficient and qdio queues were shut down too erarly. Signed-off-by:
-
