- 12 Jan, 2008 40 commits
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vignesh babu authored
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n) Signed-off-by:
vignesh babu <vignesh.babu@wipro.com> Signed-off-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
James Bottomley <James.Bottomley@HansenPartnership.com>
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Mike Christie authored
iscsi_data_rsp needs to hold the sesison lock when it calls iscsi_update_cmdsn. Signed-off-by:
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Mike Christie authored
The previous patches converted iscsi_tcp to support sg chaining. This patch sets the proper flags and sets sg_table size to 4096. This allows fs io to be capped at max_sectors, but passthrough IO to be limited by some other part of the kernel. Signed-off-by:
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Mike Christie authored
Older tools will not be setting the tmf time outs since they did not exists, so set them to a safe default. And export abort and lu reset timeout values in sysfs. Signed-off-by:
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Mike Christie authored
A target should never send us a itt that does not match a running task. If it does we do not really know what is coming down after the header, unless we evaluate the hdr and do some guessing sometimes. However, even if we know what is coming we probably do not have buffers for it or we cannot respond (if it is a r2t for example), so just drop the session. Signed-off-by:
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Olaf Kirch authored
iscsi_r2t_rsp checks the incoming R2T for sanity, and if it thinks it's fishy, it will drop it silently. In this case, we leaked an r2t_info object. If we do this often enough, we run into a BUG_ON some time later. Removed r2t wrappers and update patch by Mike Christie Signed-off-by:
Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by:
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Olaf Kirch authored
Convert xmit to iscsi chunks. from michaelc@cs.wisc.edu: Bug fixes, more digest integration, sg chaining conversion and other sg wrapper changes, coding style sync up, and removal of io fields, like pdu_sent, that are not needed. Signed-off-by:
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Mike Christie authored
The driver does not need the host lock in queuecommand so drop it. Signed-off-by:
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Mike Christie authored
If the current ctask is failed early, we legt the conn->ctask pointer pointing to a invalid task. When the xmit thread would send data for it, we would then oops. Signed-off-by:
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Mike Christie authored
If the target requests a logout, then we do not want to fail commands to scsi-ml right away. This patch just fails in pending commands for a requeue immediately, and then lets iscsid handle running commands like normal recovery. Signed-off-by:
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FUJITA Tomonori authored
Use open-iscsi.org instead of linux-iscsi.sf.net, which hasn't been updated for ages. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by:
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Mike Christie authored
During root boot and shutdown the target could send us nops. At this time iscsid cannot be running, so the target will drop the session and the boot or shutdown will hang. To handle this and allow us to better control when to check the network this patch moves the nop handling to the kernel. Signed-off-by:
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Mike Christie authored
We were using the device delete sysfs file to remove each device then logout. Now in 2.6.21 this will not work because the sysfs delete file returns immediately and does not wait for the device removal to complete. This causes a hang if a cache sync is needed during shutdown. Before .21, that approach had other problems, so this patch fixes the shutdown code so that we remove the target and unbind the session before logging out and shut down the session Signed-off-by:
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Mike Christie authored
I thought we may not need the eh mutex during host reset, but that is wrong with the new shutdown code. When start_session_recovery sets the state to terminate then drops the session lock. The scsi eh thread could then grab the session lock see that we are terminating and then return failed to scsi-ml. scsi-ml's eh then owns the command and will do whatever it wants with it. But then the iscsi eh thread could grab the session lock and want to complete the scsi commands that we in the LLD, but it no longer owns them and kaboom. Signed-off-by:
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Mike Christie authored
There is just too much going on through the common workq and something like a scsi device removal through sysfs affects how long it will take to recover the transport, mark it as failed, or shut it down gracefully. Signed-off-by:
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Mike Christie authored
There is not need to block the session during logout. Since we are going to fail the commands that were blocked just fail them immediately instead. Signed-off-by:
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Olaf Kirch authored
iscsi_pool_init simplified iscsi_pool_init currently has a lot of duplicate kfree() calls it does when some allocation fails. This patch simplifies the code a little by using iscsi_pool_free to tear down the pool in case of an error. iscsi_pool_init also returns a copy of the item array to the caller. Not all callers use this array, so we make it optional. Instead of allocating a second array and return that, allocate just one array, of twice the size. Update users of iscsi_pool_{init,free} This patch drops the (now useless) second argument to iscsi_pool_free, and updates all callers. It also removes the ctask->r2ts array, which was never used anyway. Since the items argument to iscsi_pool_init is now optional, we can pass NULL instead. Signed-off-by: -
Boaz Harrosh authored
- The default initialization of hdr_max is the minimum - sizeof(struct iscsi_cmd) - Once this patch goes into iser the default initialization at libiscsi can be removed. - This is not yet full support for AHSs at iser end. But it should be easy. Just allocate more space at iser_desc right after iscsi_hdr. Than at transmission time use ctask->hdr_len to retrieve the total size of all iscsi pdu headers. See previous patch at iscsi_tcp.[ch] Signed-off-by:Boaz Harrosh <bharrosh@panasas.com> Signed-off-by:
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Boaz Harrosh authored
at libiscsi generic code - currently code assumes a storage space of pdu header is allocated at llds ctask and is pointed to by iscsi_cmd_task->hdr. Here I add a hdr_max field pertaining to that storage, and an hdr_len that accumulates the current use of the pdu-header. - Add an iscsi_next_hdr() inline which returns the next free space to write new Header at. Also iscsi_next_hdr() is used to retrieve the address at which to write the header-digest. - Add iscsi_add_hdr(length). What the user do is calls iscsi_next_hdr() for address of the new header, than calls iscsi_add_hdr(length) with the size of the new header. iscsi_add_hdr() will check if space is available and update to the new size. length must be padded according to standard. - Add 2 padding inline helpers thanks to Olaf. Current patch does not use them but Following patches will. Also moved definition of ISCSI_PAD_LEN to iscsi_proto.h which had PAD_WORD_LEN that was never used anywhere. - Let iscsi_prep_scsi_cmd_pdu() signal an Error return since now it is possible that it will fail. - I was tired of yet again writing a "this is a digest" comment next to sizeof(__u32) so I defined a new ISCSI_DIGEST_SIZE. Now I don't need any comments. Changed all places that used sizeof(__u32) or "4" in connection to a digest. iscsi_tcp specific code - At struct iscsi_tcp_cmd_task allocate maximum space allowed in standard for all headers following the iscsi_cmd header. and mark it so in iscsi_tcp_session_create() - At iscsi_send_cmd_hdr() retrieve the correct headers size and write header digest at iscsi_next_hdr(). Signed-off-by: -
Boaz Harrosh authored
- Check to see that OVERFLOW is not negative indicating a bug. - Unify handling of UNDERFLOW and OVERFLOW to the same code. - Also handle BIDI_OVERFLOW. Signed-off-by: -
Olaf Kirch authored
Rewrite recv path. Fixes: - data digest processing and error handling. - ahs support. Some fixups by Mike Christie Signed-off-by:
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Mike Christie authored
This patch adds logical unit reset support. This should work for ib_iser, but I have not finished testing that driver so it is not hooked in yet. This patch also temporarily reverts the iscsi_tcp r2t write out patch. That code is completely rewritten in this patchset. Signed-off-by:
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Tejun Heo authored
subdir-y|m isn't supposed to contain modules or built-in components. Change subdir-$(CONFIG_PCMCIA) to obj-$(CONFIG_PCMCIA). Signed-off-by:
Tejun Heo <htejun@gmail.com> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Denis Cheng authored
Signed-off-by:
Denis Cheng <crquan@gmail.com> Acked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Jeff Garzik authored
Neither gdth_get_status() nor __gdth_interrupt() need their 'irq' argument, so remove it. [akpm@linux-foundation.org: coding style fixes] Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Acked-by:
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Jeff Garzik authored
- kill pointless irq handler loop to find base address, it is already passed to irq handler via Scsi_Host. - kill now-pointless !base test. Signed-off-by:
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Jeff Garzik authored
* remove unnecessary cast * remove unnecessary use of 'irq' function arg Signed-off-by:
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Andrew Morton authored
mips allmodconfig: ERROR: "sgiwd93_reset" [drivers/scsi/wd33c93.ko] undefined! Signed-off-by:
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Salyzyn, Mark authored
As reported in http://bugzilla.kernel.org/show_bug.cgi?id=3D9133 it was discovered that the PERC line of controllers lacked a key 64 bit ScatterGather capable SCSI pass-through function. The adapters are still capable of 64 bit ScatterGather I/O commands, but these two can not be mixed. This problem was exacerbated by the introduction of the SCSI Generic access to the DASD physical devices. The fix for users before this patch is applied is aacraid.dacmode=3D0 on the kernel command line to disable 64 bit I/O. The enclosed patch introduces a new adapter quirk and tries to limp along by enabling pass-through in situations where memory is 32 bit addressable on 64 bit machines, or disable the pass-through functions altogether. I expect that the check for 32 bit addressable memory to be controversial in that it can be incorrect in non-Dell non-Intel systems that PERC would never be installed under, the alternative is to disable pass-through in all cases which could be reported as another regression. Pass-through is used for SCSI Generic access to the physical devices, or for the management applications to properly function. In systems where this patch has disabled pass-through because it is unsupportable in combination with I/O performance, the user can choose to enable pass-through by turning off dacmode (aacraid.dacmode=3D0) or limiting the discovered kernel memory (mem=3D4G) with an associated loss in runtime performance. If we chose instead to turn off 64 bit dacmode for the adapters with this quirk, then this would be reported as another regression. Signed-off-by:
Mark Salyzyn <aacraid@adaptec.com> Signed-off-by:
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HighPoint Linux Team authored
Most code changes were made to support adapters based on Marvell IOP, plus some other fixes. - add more PCI device IDs - support for adapters based on Marvell IOP - fix a result code translation error on big-endian systems - fix resource releasing bug when scsi_host_alloc() fail in hptiop_probe() - update scsi_cmnd.resid when finishing a request - correct some coding style issues [akpm@linux-foundation.org: type fixes] Signed-off-by:
HighPoint Linux Team <linux@highpoint-tech.com> Signed-off-by:
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Randy Dunlap authored
Fix section mismatch warning: WARNING: vmlinux.o(.init.text+0x23be6): Section mismatch: reference to .exit.text:asd_unmap_ha (between 'asd_pci_probe' and 'qla4xxx_module_init') + WARNING: vmlinux.o(.text+0x1ec8a8): Section mismatch: reference to .exit.text:as d_unmap_ioport (between 'asd_unmap_ha' and 'asd_remove_dev_attrs') WARNING: vmlinux.o(.text+0x1ec8b1): Section mismatch: reference to .exit.text:as d_unmap_memio (between 'asd_unmap_ha' and 'asd_remove_dev_attrs') Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Jeff Garzik authored
Signed-off-by:
"Salyzyn, Mark" <mark_salyzyn@adaptec.com> Signed-off-by:
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Jeff Garzik authored
* pass Scsi_Host to ips_remove_device() via pci_set_drvdata(), allowing us to eliminate the ips_ha[] search loop and call ips_release() directly. * call pci_{request,release}_regions() and eliminate individual request/release_[mem_]region() calls * call pci_disable_device(), paired with pci_enable_device() * s/0/NULL/ in a few places * check ioremap() return value Signed-off-by: -
Jeff Garzik authored
[akpm@linux-foundation.org: coding style fixes] Signed-off-by:
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Jeff Garzik authored
Signed-off-by:
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Randy Dunlap authored
Fix section mismatch warning: WARNING: vmlinux.o(.text+0x1ff3a2): Section mismatch: reference to .exit.text:sym2_remove (between 'sym2_io_error_detected' and 'sym_xpt_done') Signed-off-by:
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Adrian Bunk authored
This patch contains the following minor cleanups: - make the following needlessly global functions static: - lpfc_els.c: lpfc_register_new_vport() - lpfc_els.c: lpfc_issue_els_fdisc() - lpfc_els.c: lpfc_issue_fabric_iocb() - lpfc_els.c: lpfc_fabric_abort_vport() - lpfc_hbadisc.c: lpfc_dev_loss_tmo_handler() - lpfc_hbadisc.c: lpfc_mbx_cmpl_clear_la() - lpfc_hbadisc.c: lpfc_disc_flush_list() - lpfc_hbadisc.c: __lpfc_find_node() - lpfc_init.c: lpfc_hb_timeout() - lpfc_init.c: lpfc_block_mgmt_io() - lpfc_sli.c: __lpfc_sli_release_iocbq() - lpfc_sli.c: lpfc_sli_next_hbq_slot() - lpfc_sli.c: lpfc_sli_hbqbuf_init_hbqs() - lpfc_sli.c: lpfc_sli_hbqbuf_find() - lpfc_sli.c: __lpfc_sli_issue_iocb() - #if 0 the following unused global functions: - lpfc_els.c: lpfc_fabric_abort_flogi() - lpfc_hbadisc.c: lpfc_find_node() - lpfc_hbadisc.c: lpfc_findnode_rpi() - remove the unused exports Signed-off-by:
Adrian Bunk <bunk@kernel.org> Acked-by:
James Smart <James.Smart@Emulex.Com> Signed-off-by:
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James Bottomley authored
The current scsi_test_unit_ready() is updated to return sense code information (in struct scsi_sense_hdr). The sd and sr drivers are changed to interpret the sense code return asc 0x3a as no media and adjust the device status accordingly. Signed-off-by: -
Rusty Russell authored
If blk_rq_map_sg wrote more than was allocated in the scatterlist, BUG_ON() is probably the right thing to do. [jejb: rejections fixed up] Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au> Acked-by:
Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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Randy Dunlap authored
Fix scsi_tgt_lib build when dprintk is defined: Also fix accessors problem when dprintk is defined drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_cmd_destroy': drivers/scsi/scsi_tgt_lib.c:183: warning: format '%lu' expects type 'long unsigned int', but argument 6 has type 'unsigned int' drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_cmd_done': drivers/scsi/scsi_tgt_lib.c:330: warning: format '%lu' expects type 'long unsigned int', but argument 5 has type 'unsigned int' drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_transfer_response': drivers/scsi/scsi_tgt_lib.c:345: warning: format '%lu' expects type 'long unsigned int', but argument 5 has type 'unsigned int' drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_init_cmd': drivers/scsi/scsi_tgt_lib.c:368: warning: format '%lu' expects type 'long unsigned int', but argument 6 has type 'unsigned int' drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_kspace_exec': drivers/scsi/scsi_tgt_lib.c:499: warning: format '%lu' expects type 'long unsigned int', but argument 9 has type 'unsigned int' drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_kspace_it_nexus_rsp': drivers/scsi/scsi_tgt_lib.c:620: error: 'mid' undeclared (first use in this function) drivers/scsi/scsi_tgt_lib.c:620: error: (Each undeclared identifier is reported only once drivers/scsi/scsi_tgt_lib.c:620: error: for each function it appears in.) make[2]: *** [drivers/scsi/scsi_tgt_lib.o] Error 1 [tomo: > - dprintk("%d %d %llx\n", host_no, result, (unsigned long long) mid); > + dprintk("%d %d\n", host_no, result); 'mid' is a typo. I wanted to do: dprintk("%d %d %llx\n", host_no, result, (unsigned long long)itn_id); The rest looks ok. Thanks, ] Signed-off-by:Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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