Cross Reference: /drivers/infiniband/ulp/iser/iscsi

History log of /drivers/infiniband/ulp/iser/iscsi_iser.c
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89e984e2c2cd14f77ccb26c47726ac7f13b70ae8	05-Mar-2012	Or Gerlitz <ogerlitz@mellanox.com>	IB/iser: Post initial receive buffers before sending the final login request An iser target may send iscsi NO-OP PDUs as soon as it marks the iSER iSCSI session as fully operative. This means that there is window where there are no posted receive buffers on the initiator side, so it's possible for the iSER RC connection to break because of RNR NAK / retry errors. To fix this, rely on the flags bits in the login request to have FFP (0x3) in the lower nibble as a marker for the final login request, and post an initial chunk of receive buffers before sending that login request instead of after getting the login response. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Cc: <stable@vger.kernel.org> Signed-off-by: Roland Dreier <roland@purestorage.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
587a1f1659e8b330b8738ef4901832a2b63f0bed	24-Jul-2011	Al Viro <viro@zeniv.linux.org.uk>	switch ->is_visible() to returning umode_t Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> /drivers/infiniband/ulp/iser/iscsi_iser.c
32aaeffbd4a7457bf2f7448b33b5946ff2a960eb	07-Nov-2011	Linus Torvalds <torvalds@linux-foundation.org>	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
52439540ea30396982b69662dd21aede6b336288	03-Nov-2011	Or Gerlitz <ogerlitz@mellanox.com>	IB/iser: DMA unmap TX bufs used for iSCSI/iSER headers The current driver never does DMA unmapping on these buffers. Fix that by adding DMA unmapping to the task cleanup callback, and DMA mapping to the task init function (drop the headers_initialized micro-optimization). Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
e4dd23d753c3cb0d8533d353069e8b2e8a666360	27-May-2011	Paul Gortmaker <paul.gortmaker@windriver.com>	infiniband: Fix up module files that need to include module.h They had been getting it implicitly via device.h but we can't rely on that for the future, due to a pending cleanup so fix it now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
f27fb2ef7bd88c9c5f67befe4d85e2155aa0e1a8	25-Jul-2011	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi class: sysfs group is_visible callout for iscsi host attrs The iscsi class currently does not support writable sysfs attrs for LLD sysfs settings. This patch converts the iscsi class and driver's host attrs to use the attribute container sysfs group and the sysfs group's is_visible callout to be able to support readable or writable sysfs attrs. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
1d063c17298d7cd26cfe350f1e93e1727b4aa53f	25-Jul-2011	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi class: sysfs group is_visible callout for session attrs The iscsi class currently does not support writable sysfs attrs for LLD sysfs settings. This patch converts the iscsi class and driver's session attrs to use the attribute container sysfs group and the sysfs group's is_visible callout to be able to support readable or writable sysfs attrs. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
3128c6c73cdf3df92c3165bfb785ae50114d18bf	25-Jul-2011	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi cls: sysfs group is_visible callout for conn attrs The iscsi class currently does not support writable sysfs attrs for LLD sysfs settings. This patch converts the iscsi class and drivers to use the attribute container sysfs group and the sysfs group's is_visible callout to be able to support readable or writable sysfs attrs. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
200ae1a08bec8f3fedfcfe94c892d9a024db4e46	01-Aug-2011	Or Gerlitz <ogerlitz@mellanox.com>	IB/iser: Support iSCSI PDU padding RFC3270 mandates that iSCSI PDUs are padded to the closest integer number of four byte words. Fix the iser code to support that on both the TX/RX flows. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
7c53c6f89d7a6487986c51cd73ae9a9be338a8f4	16-Feb-2011	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: export addr and port This pactch has iser export the address and port of the endpoint. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> /drivers/infiniband/ulp/iser/iscsi_iser.c
39ff05dbbbdb082bbabf06206c56b3cd4ef73904	05-May-2010	Or Gerlitz <ogerlitz@voltaire.com>	IB/iser: Enhance disconnection logic for multi-pathing The iser connection teardown flow isn't over until the underlying Connection Manager (e.g the IB CM) delivers a disconnected or timeout event through the RDMA-CM. When the remote (target) side isn't reachable, e.g when some HW e.g port/hca/switch isn't functioning or taken down administratively, the CM timeout flow is used and the event may be generated only after relatively long time -- on the order of tens of seconds. The current iser code exposes this possibly long delay to higher layers, specifically to the iscsid daemon and iscsi kernel stack. As a result, the iscsi stack doesn't respond well: this low-level CM delay is added to the fail-over time under HA schemes such as the one provided by DM multipath through the multipathd(8) service. This patch enhances the reference counting scheme on iser's IB connections so that the disconnect flow initiated by iscsid from user space (ep_disconnect) doesn't wait for the CM to deliver the disconnect/timeout event. (The connection teardown isn't done from iser's view point until the event is delivered) The iser ib (rdma) connection object is destroyed when its reference count reaches zero. When this happens on the RDMA-CM callback context, extra care is taken so that the RDMA-CM does the actual destroying of the associated ID, since doing it in the callback is prohibited. The reference count of iser ib connection normally reaches three, where the <ref, deref> relations are 1. conn <init, terminate> 2. conn <bind, stop/destroy> 3. cma id <create, disconnect/error/timeout callbacks> With this patch, multipath fail-over time is about 30 seconds, while without this patch, multipath fail-over time is about 130 seconds. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
5a0e3ad6af8660be21ca98a971cd00f331318c05	24-Mar-2010	Tejun Heo <tj@kernel.org>	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
961cde93dee2658000ead32abffb8ddf0727abe0	19-Mar-2010	Linus Torvalds <torvalds@linux-foundation.org>	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (69 commits) [SCSI] scsi_transport_fc: Fix synchronization issue while deleting vport [SCSI] bfa: Update the driver version to 2.1.2.1. [SCSI] bfa: Remove unused header files and did some cleanup. [SCSI] bfa: Handle SCSI IO underrun case. [SCSI] bfa: FCS and include file changes. [SCSI] bfa: Modified the portstats get/clear logic [SCSI] bfa: Replace bfa_get_attr() with specific APIs [SCSI] bfa: New portlog entries for events (FIP/FLOGI/FDISC/LOGO). [SCSI] bfa: Rename pport to fcport in BFA FCS. [SCSI] bfa: IOC fixes, check for IOC down condition. [SCSI] bfa: In MSIX mode, ignore spurious RME interrupts when FCoE ports are in FW mismatch state. [SCSI] bfa: Fix Command Queue (CPE) full condition check and ack CPE interrupt. [SCSI] bfa: IOC recovery fix in fcmode. [SCSI] bfa: AEN and byte alignment fixes. [SCSI] bfa: Introduce a link notification state machine. [SCSI] bfa: Added firmware save clear feature for BFA driver. [SCSI] bfa: FCS authentication related changes. [SCSI] bfa: PCI VPD, FIP and include file changes. [SCSI] bfa: Fix to copy fpma MAC when requested by user space application. [SCSI] bfa: RPORT state machine: direct attach mode fix. ...
309ce156aa27f29338438011d292a8d6496623d3	20-Feb-2010	Jayamohan Kallickal <jayamohank@serverengines.com>	[SCSI] libiscsi: Make iscsi_eh_target_reset start with session reset The iscsi_eh_target_reset has been modified to attempt target reset only. If it fails, then iscsi_eh_session_reset will be called. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> /drivers/infiniband/ulp/iser/iscsi_iser.c
962b4b528ba87c8d837bb04794a1918c7de631cd	08-Feb-2010	Or Gerlitz <ogerlitz@voltaire.com>	IB/iser: Use libiscsi passthrough mode libiscsi passthrough mode invokes the transport xmit calls directly without first going through an internal queue, unlike the other mode, which uses a queue and a xmitworker thread. Now that the "cant_sleep" prerequisite of iscsi_host_alloc is met, move to use it. Handling xmit errors is now done by the passthrough flow of libiscsi. Since the queue/worker aren't used in this mode, the code that schedules the xmitworker is removed. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Roland Dreier <rolandd@cisco.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
f19624aa92003969ba822cd3c552800965aa530b	08-Feb-2010	Or Gerlitz <ogerlitz@voltaire.com>	IB/iser: Simplify send flow/descriptors Simplify and shrink the logic/code used for the send descriptors. Changes include removing struct iser_dto (an unnecessary abstraction), using struct iser_regd_buf only for handling SCSI commands, using dma_sync instead of dma_map/unmap, etc. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
bcc60c381d857ced653e912cbe6121294773e147	08-Feb-2010	Or Gerlitz <ogerlitz@voltaire.com>	IB/iser: New receive buffer posting logic Currently, the recv buffer posting logic is based on the transactional nature of iSER which allows for posting a buffer before sending a PDU. Change this to post only when the number of outstanding recv buffers is below a water mark and in a batched manner, thus simplifying and optimizing the data path. Use a pre-allocated ring of recv buffers instead of allocating from kmem cache. A special treatment is given to the login response buffer whose size must be 8K unlike the size of buffers used for any other purpose which is 128 bytes. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
b20d038dff877566694181578c49c31616d622cd	11-Nov-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: set tgt and lu reset timeout When iser enabled lu reset support it did not set the bit to allow userspace to get/set the timeout. This sets the tgt and lu reset timeout bits. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> /drivers/infiniband/ulp/iser/iscsi_iser.c
b8b9e1b8128d8854cf55740f9ceba3010143520d	22-Sep-2009	Jayamohan Kallickal <jayamohank@serverengines.com>	[SCSI] libiscsi: iscsi_session_setup to allow for private space This patch contains changes that allow iscsi_session_setup to allocate private space for LLD's Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> /drivers/infiniband/ulp/iser/iscsi_iser.c
b3cd5050bf8eb32ceecee129cac7c59e6f1668c4	14-May-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi: add task aborted state If a task did not complete normally due to a TMF, libiscsi will now complete the task with the state ISCSI_TASK_ABRT_TMF. Drivers like bnx2i that need to free resources if a command did not complete normally can then check the task state. If a driver does not need to send a special command if we have dropped the session then they can check for ISCSI_TASK_ABRT_SESS_RECOV. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
10eb0f013c63c71c82ede77945a5f390c10cfda6	14-May-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi: pass ep connect shost When we create the tcp/ip connection by calling ep_connect, we currently just go by the routing table info. I think there are two problems with this. 1. Some drivers do not have access to a routing table. Some drivers like qla4xxx do not even know about other ports. 2. If you have two initiator ports on the same subnet, the user may have set things up so that session1 was supposed to be run through port1. and session2 was supposed to be run through port2. It looks like we could end with both sessions going through one of the ports. Fixes for cxgb3i from Karen Xie. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
6b5d6c443a9b4fd71b633cef66b5db4de8a85787	21-Apr-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] cxgb3i, iser, iscsi_tcp: set target can queue Set target can queue limit to the number of preallocated session tasks we have. This along with the cxgb3i can_queue patch will fix a throughput problem where it could only queue one LU worth of data at a time. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
5e7facb77ff4b6961d936773fb1f175f7abf76b7	05-Mar-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi class: remove host no argument from session creation callout We do not need to have llds set the host no for the session's parent, because we know the session's parent is going to be the host. This removes it from the session creation callback and converts the drivers. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
4d1083509a69a36cc1394f188b7b8956e5526a16	05-Mar-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi lib: remove qdepth param from iscsi host allocation The qdepth setting was useful when we needed libiscsi to verify the setting. Now we just need to make sure if older tools passed in zero then we need to set some default. So this patch just has us use the sht->cmd_per_lun or if for LLD does a host per session then we can set it on per host basis. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
32ae763e3fce4192cd008956a340353a2e5c3192	05-Mar-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi lib: have lib create work queue for transmitting IO We were using the shost work queue which ended up being a little akward since all iscsi hosts need a thread for scanning, but only drivers hooked into libiscsi need a workqueue for transmitting. So this patch moves the xmit workqueue to the lib. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
e28f3d5b51ed07d822f135cd941b01e2d485270e	05-Mar-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi: don't cap queue depth in iscsi modules There is no need to cap the queue depth in the modules. We set this in userspace and can do that there. For performance testing with ram based targets, this is helpful since we can have very high queue depths. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
48a237a26db0a31404c83a88e984b37a30ddcf5a	05-Mar-2009	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: have iser use its own logging iser has its own logging inrfastrucutre. Convert it to use it instead of libiscsi. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
2ff79d52d56eebcffd83e9327b89d7daedf1e897	02-Dec-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi: pass opcode into alloc_pdu callout We do not need to allocate a itt for data_out, so this passes the opcode to the alloc_pdu callout. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
0f9c7449ce050759d10424048b96d1bd0d59dcc1	02-Dec-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: convert iser to new alloc_pdu api This just converts iser to new alloc_pdu api. It still preallocates the pdu, so there is no difference. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
8e12452549ba2dfa17db97bc495172fac221a7ab	24-Sep-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi: rename host reset to target reset I had this in my patchset to add target reset support, but it got dropped due to patching conflicts. This initial patch just renames the function and users. We are actually just dropping the session, and so this does not have anything to do with the host exactly. It does for software iscsi because we allocate a host per session, but for cxgb3i this makes no sense. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
e5bd7b54e93ef7151469a12b8c28d863b9f8a088	24-Sep-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi: Support drivers initiating session removal If the driver knows when hardware is removed like with cxgb3i, bnx2i, qla4xxx and iser then we will want to remove the sessions/devices that are bound to that device before removing the host. cxgb3i and in the future bnx2i will remove the host and that will remove all the sessions on the hba. iser can call iscsi_kill_session when it gets an event that indicates that a hca is removed. And when qla4xxx is hooked in to the lib (it is only hooked into the class right now) it can call iscsi remove host like the partial offload card drivers. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
89a93f2f4834f8c126e8d9dd6b368d0b9e21ec3d	16-Jul-2008	Linus Torvalds <torvalds@linux-foundation.org>	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (102 commits) [SCSI] scsi_dh: fix kconfig related build errors [SCSI] sym53c8xx: Fix bogus sym_que_entry re-implementation of container_of [SCSI] scsi_cmnd.h: remove double inclusion of linux/blkdev.h [SCSI] make struct scsi_{host,target}_type static [SCSI] fix locking in host use of blk_plug_device() [SCSI] zfcp: Cleanup external header file [SCSI] zfcp: Cleanup code in zfcp_erp.c [SCSI] zfcp: zfcp_fsf cleanup. [SCSI] zfcp: consolidate sysfs things into one file. [SCSI] zfcp: Cleanup of code in zfcp_aux.c [SCSI] zfcp: Cleanup of code in zfcp_scsi.c [SCSI] zfcp: Move status accessors from zfcp to SCSI include file. [SCSI] zfcp: Small QDIO cleanups [SCSI] zfcp: Adapter reopen for large number of unsolicited status [SCSI] zfcp: Fix error checking for ELS ADISC requests [SCSI] zfcp: wait until adapter is finished with ERP during auto-port [SCSI] ibmvfc: IBM Power Virtual Fibre Channel Adapter Client Driver [SCSI] sg: Add target reset support [SCSI] lib: Add support for the T10 (SCSI) Data Integrity Field CRC [SCSI] sd: Move scsi_disk() accessor function to sd.h ...
f3781d2e89f12dd5afa046dc56032af6e39bd116	15-Jul-2008	Roland Dreier <rolandd@cisco.com>	RDMA: Remove subversion $Id tags They don't get updated by git and so they're worse than useless. Signed-off-by: Roland Dreier <rolandd@cisco.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
8e9a20cee4511be4560f9c858d9994eb6913731e	16-Jun-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi, iscsi_tcp, ib_iser: fix setting of can_queue with old tools. This patch fixes two bugs that are related. 1. Old tools did not set can_queue/cmds_max. This patch modifies libiscsi so that when we add the host we catch this and set it to the default. 2. iscsi_tcp thought that the scsi command that was passed to the eh functions needed a iscsi_cmd_task allocated for it. It only needed a mgmt task, and now it does not matter since it all comes from the same pool and libiscsi handles this for the drivers. ib_iser had copied iscsi_tcp's code and set can_queue to its max - 1 to handle this. So this patch removes the max -1, and just sets it to the max. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
913e5bf435617aa529919a4f7567f849f9f35f9f	21-May-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] libiscsi, iser, tcp: remove recv_lock The recv lock was defined so the iscsi layer could block the recv path from processing IO during recovery. It turns out iser just set a lock to that pointer which was pointless. We now disconnect the transport connection before doing recovery so we do not need the recv lock. For iscsi_tcp we still stop the recv path incase older tools are being used. This patch also has iscsi_itt_to_ctask user grab the session lock and has the caller access the task with the lock or get a ref to it in case the target is broken and sends a tmf success response then sends data or a response for the command that was supposed to be affected bty the tmf. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
88dfd340b9dece8fcaa1a2d4c782338926c017f7	21-May-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi class: Add session initiatorname and ifacename sysfs attrs. This adds two new attrs used for creating initiator ports and binding sessions to hardware. The session level initiatorname: Since bnx2i does a scsi_host per host device, we need to add the iface initiator port settings on the session, so we can create multiple initiator ports (each with different inames) per device/scsi_host. The current iname reflects that qla4xxx can have one iname per hba, and we are allocating a host per session for software. The iname on the host will remain so we can export and set the hba level qla4xxx setting. The ifacename attr: To bind a session to a some peice of hardware in userspace we maintain some mappings, but during boot or iscsid restart (iscsid contains the user space part of the driver) we need to be able to figure out which of those host mappings abstractions maps to certain sessions. This patch adds a ifacename attr, which userspace can set to id the host side of the endpoint across pivot_roots and iscsid restarts. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
412eeafa0a51a8d86545d0be637bf84e4374fccf	21-May-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: Modify iser to take a iscsi_endpoint struct in ep callouts and session setup This hooks iser into the iscsi endpoint code. Previously it handled the lookup and allocation. This has been made generic so bnx2i and iser can share it. It also allows us to pass iser the leading conn's ep, so we know the ib_deivce being used and can set it as the scsi_host's parent. And that allows scsi-ml to set the dma_mask based on those values. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
7970634b81a6e3561954517bca42615542c4535b	21-May-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iscsi class: user device_for_each_child instead of duplicating session list Currently we duplicate the list of sessions, because we were using the test for if a session was on the host list to indicate if the session was bound or unbound. We can instead use the target_id and fix up the class so that drivers like bnx2i do not have to manage the target id space. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
2261ec3d686e35c1a6088ab7f00a1d02b528b994	21-May-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: handle iscsi_cmd_task rename This handles the iscsi_cmd_task rename and renames the iser cmd task to iser task. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c
2747fdb25726caa1a89229f43d99ca50af72576a	21-May-2008	Mike Christie <michaelc@cs.wisc.edu>	[SCSI] iser: convert ib_iser to support merged tasks Convert ib_iser to support merged tasks. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> /drivers/infiniband/ulp/iser/iscsi_iser.c