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path: root/drivers/scsi/libiscsi.c
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* [SCSI] libiscsi: fix cmd seqeunce number checkingMike Christie2007-07-27
| | | | | | | | | We should not be checking the cmd windown for just handling r2t responses. And if the window closes in on us, always have scsi-ml requeue the command from our queuecommand function. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: make sure session is not blocked when removing hostMike Christie2007-07-27
| | | | | | | | | | When we logout we block the session since we are not taking any more commands, but when we call remove host we want to make sure any IO that got queued up and blocked gets failed upwards quickly, so we unblock the session and fail it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi_tcp: convert to use the data buffer accessorsFUJITA Tomonori2007-06-17
| | | | | | | | | | | | | - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. TODO: use scsi_for_each_sg(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi class, iscsi_tcp, iser, qla4xxx: add netdevname sysfs attrMike Christie2007-06-02
| | | | | | | | | | | | | | | | | iSCSI must support software iscsi (iscsi_tcp, iser), hardware iscsi (qla4xxx), and partial offload (broadcom). To be able to allow each stack or driver or port (virtual or physical) to be able to log into the same target portal we use the initiator tuple [[HWADDRESS | NETDEVNAME], INITIATOR_NAME] and the target tuple [TARGETNAME, CONN_ADDRESS, CONN_PORT] to id a session. This patch adds the netdev name, which is used by software iscsi when it binds a session to a netdevice using the SO_BINDTODEVICE sock opt. It cannot use HWADDRESS because if someone did vlans then the same netdevice will have the same mac and the initiator,target id will not be unique. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Cc: David C Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: make can_queue configurableMike Christie2007-06-02
| | | | | | | | | | | | This patch allows us to set can_queue and cmds_per_lun from userspace when we create the session/host. From there we can set it on a per target basis. The patch fully converts iscsi_tcp, but only hooks up ib_iser for cmd_per_lun since it currently has a lots of preallocations based on can_queue. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: fix iscsi cmdsn allocationMike Christie2007-06-02
| | | | | | | | | | | | | | | | | | | | | The cmdsn allocation and pdu transmit code can race, and we can end up sending a pdu with cmdsn 10 before a pdu with 5. The target will then fail the connection/session. This patch fixes the problem by delaying the cmdsn allocation until we are about to send the pdu. This also removes the xmitmutex. We were using the connection xmitmutex during error handling to handle races with mtask and ctask cleanup and completion. For ctasks we now have nice refcounting and for the mtask, if we hit the case where the mtask timesout and it is floating around somewhere in the driver, we end up dropping the session. And to handle session level cleanup, we use the xmit suspend bit along with scsi_flush_queue and the session lock to make sure that the xmit thread is not possibly transmitting a task while we are trying to kill it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi tcp: fix iscsi xmit state machineMike Christie2007-06-01
| | | | | | | | | | If iscsi_tcp partially sends a header, it would recalculate the header size and readd the size of the digest (if header digests are used).This would cause us to send sizeof(digest) extra bytes when we sent the rest of the header. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi class, iscsi_tcp, ib_iser: add sysfs chap fileMike Christie2007-06-01
| | | | | | | | | | | | | | The attached patches add sysfs files for the chap settings to the iscsi transport class, iscsi_tcp and ib_iser. This is needed for software iscsi because there are times when iscsid can die and it will need to reread the values it was using. And it is needed by qla4xxx for basic management opertaions. This patch does not hook in qla4xxx yet, because I am not sure the mbx command to use. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: Some fixes in preparation for bidirectional support - total_lengthMike Christie2007-06-01
| | | | | | | | | | | | | - Remove shadow of request length from struct iscsi_cmd_task. - change all users to use scsi_cmnd->request_bufflen directly (With bidi we will use scsi-ml API to retrieve in/out length) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: Some fixes in preparation for bidirectional support - exp_datasnMike Christie2007-06-01
| | | | | | | | | | | | | | | | This patch fixes handling of expected datasn/r2tsn as received from target. It is done according to: T10 rfc3720 section 3.2.2.3. Data Sequencing. . unify expected datasn/r2tsn into one counter . calculate than check expected datasn/r2tsn. On error print a message and fail the request. (TODO use iscsi retransmits) . remove the FIXME ;) . avoid zero length memset Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi class, qla4xxx, iscsi_tcp, ib_iser: export/set initiator nameMike Christie2007-06-01
| | | | | | | | | | | | | | | For iscsi root boot, software iscsi needs to know what the BIOS/OF initiator used for the initiator name so this puts it in sysfs for userspace to be able to pick up. For hw iscsi, it is nice to see what the card is using. This patch adds the new param, and hooks in qla4xxx, iscsi_tcp, and ib_iser. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Cc: David C Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi, iscsi_tcp, ib_iser : add sw iscsi host get/set params helpersMike Christie2007-06-01
| | | | | | | | | | | iscsid and udev need to key off the hw address being used so add some helpers for iser and iscsi tcp. Also convert them Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: use get_unalignedMike Christie2007-03-11
| | | | | | | | | | | | | Dave Miller meantioned that the data buffer in a past sense fixup patch was not gauranteed to be aligned properly for ia64. This patch has libiscsi use get_unalinged to make sure. There are a couple more places in the digest handling we may need to do this, but we are in the middle of fixing that code for big endien systems so just the sense access is fixed here. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: rename DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTHMike Christie2007-03-11
| | | | | | | | | This patch renames DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH to avoid confusion with the drivers default values (DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH is the iscsi RFC specific default). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: clear mtaskMike Christie2007-03-11
| | | | | | | Consolidate the mtask clearing code. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: flush work before freeing connectionMike Christie2007-03-11
| | | | | | | | | It's possible that we call iscsi_xmitworker after iscsi_conn_release which causes a oops. This patch flushes the workqueue. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] iscsi endianness annotationsAl Viro2007-02-09
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SCSI] libiscsi: fix senselen calculationMike Christie2007-01-06
| | | | | | | | | | | | | | Yanling Qi, noted that when the sense data length of a check-condition is greater than 0x7f (127), senselen = (data[0] << 8) | data[1] will become negative. It causes different kinds of panics from GPF, spin_lock deadlock to spin_lock recursion. We were also swapping this value on big endien machines. This patch fixes both issues by using be16_to_cpu(). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* WorkStruct: make allyesconfigDavid Howells2006-11-22
| | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* [SCSI] iscsi: add newlines to debug messagesPete Wyckoff2006-11-09
| | | | | | | | | Some messages from debug_scsi do not have trailing newlines, making console messages difficult to read. Fix that. Signed-off-by: Pete Wyckoff <pw@osc.edu> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: fix logout pdu processingMike Christie2006-10-25
| | | | | | | | | | According to the iscsi RFC, we cannot send other requests if we have sent a logout pdu. This patch enforces this requirement by blocking the session and suspending the send thread. Userspace decides if we restart the connection or if we just free everything. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: fix aen supportMike Christie2006-10-25
| | | | | | | | We have been dropping the pdu. We should just send it to userspace and let it handle it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: fix missed iscsi_task_put in xmit error pathMike Christie2006-10-25
| | | | | | | | | | | | | | | | | | | | from bhalevy@gmail.com: It looks like change 652 to libiscsi.c added some dead code around line 670 if (rc) { spin_unlock_bh(&conn->session->lock); goto again; } since 5 lines above we goto again if (rc). It looks like the previous if (rc) should go away if we want to put the ctask before breaking out of the while loop with "goto again" (see following patch). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: fix oops in connection create failure pathMike Christie2006-10-25
| | | | | | | | | | | If connection creation fails we end up calling list_del on a invalid struct. This then causes an oops. We are not acutally using the lists (old MCS code we thought might be useful elsewhere) so this patch just removes that code. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: don't call into lld to cleanup taskMike Christie2006-09-02
| | | | | | | | | | | | In the normal IO path we should not be calling back into the LLD since the LLD will have cleaned up the task before or after calling complete pdu. For the fail_command path we still need to do this to force the cleanup. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: check that command ptr is set before accessing itMike Christie2006-09-02
| | | | | | | | | | If the scsi eh sends a TUR and the session is down we could return SCSI_ML_HOST_BUSY. scsi eh will ignore this and send ask us to abort the command and we blindly accesst the command ptr. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi: only check burst lengths when sending unsol dataMike Christie2006-09-02
| | | | | | | | The first burst length is only relevant if immedate data = Yes or if Initial R2T is No Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi_tcp: fix padding, data digests, and IO at weird offsetsMike Christie2006-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iscsi_tcp calculates padding by using the expected transfer length. This has the problem where if we have immediate data = no and initial R2T = yes, and the transfer length ended up needing padding then we send: 1. header 2. padding which should have gone after data 3. data Besides this bug, we also assume the target will always ask for nice transfer lengths and the first burst length will always be a nice value. As far as I can tell form the RFC this is not a requirement. It would be silly to do this, but if someone did it we will end doing bad things. Finally the last bug in that bit of code is in our handling of the recalculation of data digests when we do not send a whole iscsi_buf in one try. The bug here is that we call crypto_digest_final on a iscsi_sendpage error, then when we send the rest of the iscsi_buf, we doiscsi_data_digest_init and this causes the previous data digest to be lost. And to make matters worse, some of these bugs are replicated over and over and over again for immediate data, solicited data and unsolicited data. So the attached patch made over the iscsi git tree (see kernel.org/git for details) which I updated today to include the patches I said I merged, consolidates the sending of data, padding and digests and calculation of data digests and fixes the above bugs. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] add refcouting around ctask usage in main IO patchMike Christie2006-09-02
| | | | | | | | | | | | | | | | | It is possible that a ctask could be completing and getting cleaned up at the same time, we are finishing up the last data transfer. This could then result in the data transfer code using stale or invalid values. This patch adds a refcount to the ctask. When the count goes to zero then we know the transmit thread and recv thread or softirq are not touching it and we can safely release it. The eh should not need to grab a reference because it only cleans up a task if it has both the xmit mutex and recv lock (or recv side suspended). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] libiscsi, iscsi_tcp, iscsi_iser: check that burst lengths are valid.Mike Christie2006-09-02
| | | | | | | | | | | | iSCSI RFC states that the first burst length must be smaller than the max burst length. We currently assume targets will be good, but that may not be the case, so this patch adds a check. This patch also moves the unsol data out offset to the lib so the LLDs do not have to track it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi bugfixes: fix mem leaks in libiscsiMike Christie2006-07-28
| | | | | | | We were leaking some strings. This patch just frees them. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi bugfixes: pass errors from complete_pdu to callerMike Christie2006-07-28
| | | | | | | | Must pass ISCSI_ERR values from the recv path and propogate them upwards. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi bugfixes: reduce memory allocationsMike Christie2006-07-28
| | | | | | | | | | | | | | | | | We currently try to allocate a max_recv_data_segment_length which can be very large (default is 64K), and common uses are up to 1MB. It is very very difficult to allocte this much contiguous memory and it turns out we never even use it. We really only need a couple of pages, so this patch has us allocates just what we know what we need today. Later if vendors start adding vendor specific data and we need to handle large buffers we can do this, but for the last 4 years we have not seen anyone do this or request it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi bugfixes: fix oops when removing sessionMike Christie2006-07-28
| | | | | | | | | We are touching the cls_session after we have freed it. This causes a oops. 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 bugfixes: fix oops when iser is flushing ioMike Christie2006-07-28
| | | | | | | | | | | | | When we enter recovery and flush the running commands we cannot freee the connection before flushing the commands. Some commands may have a reference to the connection that needs to be released before. iscsi_stop was forcing the term and suspend too early and was causing a oops in iser, so this patch removes those callbacks all together and allows the LLD to handle that detail. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi bugfixes: fix abort handlingMike Christie2006-07-28
| | | | | | | | | | | | | | | Abort handler fixes. If a connection is dropped and reconnected while an abort is running then we should assume the recovery code will clean up the abort. Not doing so causes a oops. And if a command completes then we get the status for the abort, we do not need to call into the LLD to cleanup the resources. Doing this causes and oops in iser because it ends up freeing some resources twice. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi bugfixes: fix r2t handlingMike Christie2006-07-28
| | | | | | | | | | | | The iscsi tcp code can pluck multiple rt2s from the tasks's r2tqueue in the xmit code. This can result in the task being queued on the xmit queue but gettting completed at the same time. This patch fixes the above bug by making the fifo a list so we always remove the entry on the list del. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: pass target nr to session creationMike Christie2006-06-29
| | | | | | | | | | | | | | | | So the drivers do not use the channel numbers, but some do use the target numbers. We were just adding some goofy variable that just increases for the target nr. This is useless for software iscsi because it is always zero. And for qla4xxx the target nr is actually the index of the target/session in its FW or FLASH tables. We needed to expose this to userspace so apps could access those numbers so this patch just adds the target nr to the iscsi session creation functions. This way when qla4xxx's Hw thinks a session is at target nr 4 in its hw, it is exposed as that number in sysfs. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: rm channel usage from iscsiMike Christie2006-06-29
| | | | | | | | | | | | I do not remember what I was thinking when we added the channel as a argument to the session create function. It was probably due to too much cut and paste work from the FC transport class. The channel is meaningless for iscsi drivers so this patch drops its usage everywhere in the iscsi related code. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: fix session refcoutingMike Christie2006-06-29
| | | | | | | | | | | | | | | | iscsi_tcp and iser cannot be rmmod from the kernel when sessions are running because session removal is driven from userspace. For those modules we get a module reference when a session is created then drop it when the session is removed. For qla4xxx, they can jsut remove the sessions from the pci remove function like normal HW drivers, so this patch moves the module reference from the transport class functions shared by all drivers to the libiscsi functions only used be software iscsi modules. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] iscsi: fixup set/get param functionsMike Christie2006-06-29
| | | | | | | | | | | | | | Reduce duplication in the software iscsi_transport modules by adding a libiscsi function to handle the common grunt work. This also has the drivers return specifc -EXXX values for different errors so userspace can finally handle them in a sane way. Also just pass the sysfs buffers to the drivers so HW iscsi can get/set its string values, like targetname, and initiatorname. 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] 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: 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: 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>
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