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* [SCSI] iscsi class: fix gfp use in ping compl and host eventMike Christie2012-03-271-4/+4
| | | | | | | | | | | If a ping or host event were to occur when memory is low we do not want to use GFP_KERNEL, because the paths sending them cannot block for data to be written. These paths might be needed to recover write paths. Use GFP_NOIO instead. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport: Export CHAP index as sysfs attributeMike Christie2012-02-291-0/+8
| | | | | | | Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi_transport: Add support to display CHAP list and delete CHAP entryNilesh Javali2012-02-291-1/+100
| | | | | | | | | | | For offload iSCSI like qla4xxx CHAP entries are stored in FLASH. This patch adds support to list CHAP entries stored in FLASH and delete specified CHAP entry from FLASH using iscsi tools. Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi_transport: Added Ping supportVikas Chaudhary2012-02-191-0/+59
| | | | | | | | | Added ping support for iscsi adapter, application can use this interface for diagnostic network connection. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport_iscsi: added support for host eventVikas Chaudhary2012-02-191-0/+31
| | | | | | | | | Added support to post kernel host event to application using netlink interface. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi: fix setting of pid from netlink skbMike Christie2012-02-191-2/+2
| | | | | | | | | | | NETLINK_CREDS's pid now returns 0, so I guess we are supposed to be using NETLINK_CB. This changed while the patch to export the pid was getting merged upstream, so it was not noticed until both the network and iscsi changes were in the same tree. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi: don't hang in endless loop if no targets presentSasha Levin2012-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iscsi_if_send_reply() may return -ESRCH if there were no targets to send data to. Currently we're ignoring this value and looping in attempt to do it over and over, which will usually lead in a hung task like this one: [ 4920.817298] INFO: task trinity:9074 blocked for more than 120 seconds. [ 4920.818527] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4920.819982] trinity D 0000000000000000 5504 9074 2756 0x00000004 [ 4920.825374] ffff880003961a98 0000000000000086 ffff8800001aa000 ffff8800001aa000 [ 4920.826791] 00000000001d4340 ffff880003961fd8 ffff880003960000 00000000001d4340 [ 4920.828241] 00000000001d4340 00000000001d4340 ffff880003961fd8 00000000001d4340 [ 4920.833231] [ 4920.833519] Call Trace: [ 4920.834010] [<ffffffff826363fa>] schedule+0x3a/0x50 [ 4920.834953] [<ffffffff82634ac9>] __mutex_lock_common+0x209/0x5b0 [ 4920.836226] [<ffffffff81af805d>] ? iscsi_if_rx+0x2d/0x990 [ 4920.837281] [<ffffffff81053943>] ? sched_clock+0x13/0x20 [ 4920.838305] [<ffffffff81af805d>] ? iscsi_if_rx+0x2d/0x990 [ 4920.839336] [<ffffffff82634eb0>] mutex_lock_nested+0x40/0x50 [ 4920.840423] [<ffffffff81af805d>] iscsi_if_rx+0x2d/0x990 [ 4920.841434] [<ffffffff810dffed>] ? sub_preempt_count+0x9d/0xd0 [ 4920.842548] [<ffffffff82637bb0>] ? _raw_read_unlock+0x30/0x60 [ 4920.843666] [<ffffffff821f71de>] netlink_unicast+0x1ae/0x1f0 [ 4920.844751] [<ffffffff821f7997>] netlink_sendmsg+0x227/0x350 [ 4920.845850] [<ffffffff821857bd>] ? sock_update_netprioidx+0xdd/0x1b0 [ 4920.847060] [<ffffffff82185732>] ? sock_update_netprioidx+0x52/0x1b0 [ 4920.848276] [<ffffffff8217f226>] sock_aio_write+0x166/0x180 [ 4920.849348] [<ffffffff810dfe41>] ? get_parent_ip+0x11/0x50 [ 4920.850428] [<ffffffff811d0d9a>] do_sync_write+0xda/0x120 [ 4920.851465] [<ffffffff810dffed>] ? sub_preempt_count+0x9d/0xd0 [ 4920.852579] [<ffffffff810dfe41>] ? get_parent_ip+0x11/0x50 [ 4920.853608] [<ffffffff81791887>] ? security_file_permission+0x27/0xb0 [ 4920.854821] [<ffffffff811d0f4c>] vfs_write+0x16c/0x180 [ 4920.855781] [<ffffffff811d104f>] sys_write+0x4f/0xa0 [ 4920.856798] [<ffffffff82638e79>] system_call_fastpath+0x16/0x1b [ 4920.877487] 1 lock held by trinity/9074: [ 4920.878239] #0: (rx_queue_mutex){+.+...}, at: [<ffffffff81af805d>] iscsi_if_rx+0x2d/0x990 [ 4920.880005] Kernel panic - not syncing: hung_task: blocked tasks Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport_iscsi: Added support to show port_state and port_speed ↵Vikas Chaudhary2012-02-191-0/+63
| | | | | | | | | | | | | | in sysfs sysfs patch to view port_state: /sys/class/iscsi_host/host*/port_state sysfs patch to view port_speed: /sys/class/iscsi_host/host*/port_speed Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* Merge tag 'scsi-misc' of ↵Linus Torvalds2012-01-101-2/+19
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 SCSI updates for post 3.2 merge window * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (67 commits) [SCSI] lpfc 8.3.28: Update driver version to 8.3.28 [SCSI] lpfc 8.3.28: Add Loopback support for SLI4 adapters [SCSI] lpfc 8.3.28: Critical Miscellaneous fixes [SCSI] Lpfc 8.3.28: FC and SCSI Discovery Fixes [SCSI] lpfc 8.3.28: Add support for ABTS failure handling [SCSI] lpfc 8.3.28: SLI fixes and added SLI4 support [SCSI] lpfc 8.3.28: Miscellaneous fixes in sysfs and mgmt interfaces [SCSI] mpt2sas: Removed redundant calling of _scsih_probe_devices() from _scsih_probe [SCSI] mac_scsi: Remove obsolete IRQ_FLG_* users [SCSI] qla4xxx: Update driver version to 5.02.00-k10 [SCSI] qla4xxx: check for FW alive before calling chip_reset [SCSI] qla4xxx: Fix qla4xxx_dump_buffer to dump buffer correctly [SCSI] qla4xxx: Fix the IDC locking mechanism [SCSI] qla4xxx: Wait for disable_acb before doing set_acb [SCSI] qla4xxx: Don't recover adapter if device state is FAILED [SCSI] qla4xxx: fix call trace on rmmod with ql4xdontresethba=1 [SCSI] qla4xxx: Fix CPU lockups when ql4xdontresethba set [SCSI] qla4xxx: Perform context resets in case of context failures. [SCSI] iscsi class: export pid of process that created [SCSI] mpt2sas: Remove unused duplicate diag_buffer_enable param ...
| * [SCSI] iscsi class: export pid of process that createdMike Christie2011-12-151-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There could be multiple userspace entities creating/destroying/ recoverying sessions and also the kernel's iscsi drivers could be doing this too. If the userspace apps do try to manage the kernel ones it can get the driver/fw out of sync and cause the user to loose the root disk, oopses or ping ponging becasue userspace wants to do one thing but the kernel manager thought we are trying to do another. This patch fixes the problem by just exporting the pid of the entity that created the session. Userspace programs like iscsid, iscsiadm, iscsistart, qlogic's tools, etc, can then figure out which sessions they own and only manage them. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* | switch ->is_visible() to returning umode_tAl Viro2012-01-031-4/+4
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [SCSI] scsi_transport_iscsi: Fix documentation os parameterMarcos Paulo de Souza2011-11-031-1/+1
| | | | | | | | | Fixes documentation of a parameter of iscsi_bsg_host_add function to silence to make htmldocs Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: fix vlan configurationMike Christie2011-10-201-3/+3
| | | | | | | | | | | | | Userspace was sending the priority/id part of the vlan tag and sysfs was displaying the id in the vlan file. This renames the vlan sysfs file to vlan_id to reflect that it was showing the id and to match the vlan_priority file. This also adds a ISCSI_NET_PARAM_VLAN_TAG iscsi nl command to relfect that we are sending down the vlan/priority part of the tag. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] qla4xxx: fix data alignment and use nl helpersMike Christie2011-10-201-4/+4
| | | | | | | | | | This has the driver use helpers for a common operation and fixes a issue where if multiple iscsi params are sent they could be sent at offsets that cause unaligned accesses. The nla helpers account for the padding needed to align properly for the driver. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: fix link local mispellingMike Christie2011-10-201-3/+3
| | | | | | | | Use the same format for link local variables. Instead of linklocal do link_local. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: Replace iscsi_get_next_target_id with IDAMike Christie2011-10-201-36/+23
| | | | | | | | | | | | Replaced the iscsi_get_next_target_id with IDA to make target-id allocation efficient for iscsi offload drivers This patch should be applied after Jonathen Cameron Patch "ida : simplified functions for id allocation" Signed-off-by: John Soni Jose <jose0here@gmail.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport_iscsi: Added support to update initiator iscsi portVikas Chaudhary2011-08-271-0/+4
| | | | | | Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport_iscsi: Added support to update mtuVikas Chaudhary2011-08-271-0/+4
| | | | | | Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport_iscsi: Add conn login, kernel to user, event to ↵Manish Rangankar2011-08-271-0/+47
| | | | | | | | | | | | | | | | | support offload session login. Offload drivers like qla4xxx will offload the sending of the login/logout pdus still, so this patch adds iscsi_conn_login_event which is used by these types of drivers to notify userspace that the connection has changed state. It also adds a iscsi_is_session_online helper so the lld can query the sessions state field. Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com> Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: add bsg support to iscsi classMike Christie2011-08-271-1/+113
| | | | | | | | | | | | This patch adds bsg support to the iscsi class. There is only 1 request, the host vendor one, supported. It is expected that this would be used for things like flash updates. This patch is made over this one http://marc.info/?l=linux-scsi&m=131149780020992&w=2 Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: expand vlan supportMike Christie2011-08-271-0/+8
| | | | | | | | | Add support to set vlan priority and enable/disble a vlan. Patch based on code from Vikas Chaudhary. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: sysfs group is_visible callout for iscsi host attrsMike Christie2011-08-271-20/+38
| | | | | | | | | | | 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>
* [SCSI] iscsi class: remove iface param maskMike Christie2011-08-271-24/+21
| | | | | | | | We can replace the iface param mask with the attr_is_visible callback. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi class: sysfs group is_visible callout for session attrsMike Christie2011-08-271-53/+95
| | | | | | | | | | | 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>
* [SCSI] iscsi cls: sysfs group is_visible callout for conn attrsMike Christie2011-08-271-28/+65
| | | | | | | | | | | 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>
* [SCSI] iscsi class: add iface representationMike Christie2011-08-271-1/+188
| | | | | | | | | | | | | | A iscsi host can have multiple interfaces. This patch adds a new iface iscsi class for this. It exports the network settings now, and will be extended to also export iscsi initiator port settings like the isid and initiator name for drivers that can support multiple initiator ports. Based on patch from Lalit Chandivade. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] iscsi_transport: add support for net settingsMike Christie2011-08-271-0/+27
| | | | | | | | | | | Allows user space (iscsiadm) to send down network configuration parameters for LLD to set private network configuration on the iSCSI adapters. Based on patch from Lalit Chandivade. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] scsi_transport_iscsi: make priv_sess file writeable only by rootVasiliy Kulikov2011-03-231-1/+1
| | | | | | Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi class: add callout to get iscsi_endpoint valuesMike Christie2011-02-241-2/+37
| | | | | | | | | | | | | | | | For drivers using the ep callbacks the addr and port are attached to the endpoint instead of the conn. This adds a callout to the iscsi_transport to get ep values. It also adds locking around the get param call to make sure that ep_disconnect does not free the LLD's ep interconnect structs from under us (the ep has a refcount so it will not go away but the LLD may have structs from other subsystems that are not allocated in the ep so we need to protect them from getting freed). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi class: remove unused active variableMike Christie2011-02-241-2/+0
| | | | | | | | The active variable on the iscsi_cls_conn is not used so this patch removes it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi: fix iscsi_endpoint leakMike Christie2011-02-241-13/+50
| | | | | | | | | | When iscsid restarts it does not know the connection's endpoint, so it is getting leaked. This fixes the problem by having the iscsi class force a disconnect before a new connection is bound. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi: add module aliasStephen Hemminger2010-12-211-0/+1
| | | | | | | | | | Since iscsi transport can be built as a module and uses netlink socket to communicate. The module should have an alias to autoload when socket of NETLINK_ISCSI type is requested. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi transport: fix kernel-doc notationRandy Dunlap2010-09-091-1/+1
| | | | | | | | | | Fix typo in scsi_transport_iscsi.c kernel-doc notation: Warning(drivers/scsi/scsi_transport_iscsi.c:548): No description found for parameter 'cmd' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi_transport: wait on session in error handler pathMike Christie2010-07-281-0/+32
| | | | | | | | | | wait for session to come online in eh_device_reset_handler and eh_target_reset_handler Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi_transport: Modidify recovery_tmo from sysfsVikas Chaudhary2010-07-281-5/+38
| | | | | | | | | Added support to modify session->recovery_tmo from sysfs Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi_transport: added new iscsi_param to display target alias in sysfsVikas Chaudhary2010-07-281-2/+4
| | | | | | | Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [SCSI] iscsi class: modify handling of replacement timeoutMike Christie2009-12-041-4/+5
| | | | | | | | | | | | | | This patch modifies the replacement/recovery_timeout so it works more like the fc fast io fail tmo. If userspace tries to set the replacement/recovery_timeout to less than zero, we will turn off the forced recovery cleanup. If userspace sets the value to 0 then we will force the recovery cleanup immediately. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] libiscsi: add warm target reset tmf supportMike Christie2009-12-041-1/+3
| | | | | | | | | | This implements warm target reset tmf support for the scsi-ml target reset callback. Previously we would just drop the session in that callback. This patch will now try a target reset and if that fails drop the session. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] iscsi class: Add logging to scsi_transport_iscsi.cMike Christie2009-09-051-2/+71
| | | | | | | | | | Logging for connections and sessions in the scsi_transport_iscsi module is now controlled by module parameters. Signed-off-by: Erez Zilber <erezzi.list@gmail.com> [Mike Christie: newline fixups and modification of some dbg statements] Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* iscsi: Use GFP_ATOMIC in iscsi_offload_mesg().Michael Chan2009-07-301-2/+2
| | | | | | | | | | | Changing to GFP_ATOMIC because the only caller in cnic/bnx2i may be calling this function while holding spin_lock. This problem was discovered by Mike Christie. Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
* scsi_transport_iscsi: return -EOVERFLOW for Too many iscsi targetsJaswinder Singh Rajput2009-06-211-0/+1
| | | | | | | | | | | | | | setting err as -EOVERFLOW for Too many iscsi targets. Also fixes a spurious compiler warning for gcc 4.3.3 and gcc 4.4 : CC drivers/scsi/scsi_transport_iscsi.o drivers/scsi/scsi_transport_iscsi.c: In function ‘iscsi_add_session’: drivers/scsi/scsi_transport_iscsi.c:678: warning: ‘err’ may be used uninitialized in this function Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi class: Add new NETLINK_ISCSI messages for cnic/bnx2i driver.Michael Chan2009-06-091-36/+86
| | | | | | | | | | | | | Add ISCSI_NETLINK messages for iSCSI NICs to get information such as path from userspace. Original iscsid messages are now always sent as multicast to group 1. The new messages are sent to group 2. The multicast changes were made by Mike Christie. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi: pass ep connect shostMike Christie2009-05-231-11/+40
| | | | | | | | | | | | | | | | | | | | 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>
* [SCSI] fc-transport: Close state transition-window during rport deletion.Andrew Vasquez2009-05-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Andrew Vasquez wrote: > fc-transport: Close state transition-window during rport deletion. > > After an rport's state has transitioned to FC_PORTSTATE_BLOCKED, > but, prior to making the upcall to 'block' the scsi-target > associated with an rport, queued commands can recycle and > ultimately run out of retries causing failures to propagate to > upper-level drivers. Close this transition-window by returning > the non-'retries' modifying DID_IMM_RETRY status for submitted > I/Os. The same can happen for iscsi when transitioning from logged in to failed and blocking the sdevs. This patch converts iscsi and fc's transitions back to use DID_IMM_RETRY instead of DID_TRANSPORT_DISRUPTED which has a limited number of retries that we do not want to use for handling this race. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> [Addition of iscsi and fc port online devloss case conversion by Mike Christie] Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2009-03-281-35/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (119 commits) [SCSI] scsi_dh_rdac: Retry for NOT_READY check condition [SCSI] mpt2sas: make global symbols unique [SCSI] sd: Make revalidate less chatty [SCSI] sd: Try READ CAPACITY 16 first for SBC-2 devices [SCSI] sd: Refactor sd_read_capacity() [SCSI] mpt2sas v00.100.11.15 [SCSI] mpt2sas: add MPT2SAS_MINOR(221) to miscdevice.h [SCSI] ch: Add scsi type modalias [SCSI] 3w-9xxx: add power management support [SCSI] bsg: add linux/types.h include to bsg.h [SCSI] cxgb3i: fix function descriptions [SCSI] libiscsi: fix possbile null ptr session command cleanup [SCSI] iscsi class: remove host no argument from session creation callout [SCSI] libiscsi: pass session failure a session struct [SCSI] iscsi lib: remove qdepth param from iscsi host allocation [SCSI] iscsi lib: have lib create work queue for transmitting IO [SCSI] iscsi class: fix lock dep warning on logout [SCSI] libiscsi: don't cap queue depth in iscsi modules [SCSI] iscsi_tcp: replace scsi_debug/tcp_debug logging with iscsi conn logging [SCSI] libiscsi_tcp: replace tcp_debug/scsi_debug logging with session/conn logging ...
| * [SCSI] iscsi class: remove host no argument from session creation calloutMike Christie2009-03-131-3/+4
| | | | | | | | | | | | | | | | | | | | 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>
| * [SCSI] iscsi class: fix lock dep warning on logoutMike Christie2009-03-131-32/+6
| | | | | | | | | | | | | | | | | | | | | | We never should hit the lock up that is spit out when lock dep is on and we logout. But we have been using the shost work queue in a odd way. This patch has us use the work queue for scanning instead of creating our own, and this ends up also killing the lock dep warnings. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* | netlink: change return-value logic of netlink_broadcast()Pablo Neira Ayuso2009-02-051-10/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, netlink_broadcast() reports errors to the caller if no messages at all were delivered: 1) If, at least, one message has been delivered correctly, returns 0. 2) Otherwise, if no messages at all were delivered due to skb_clone() failure, return -ENOBUFS. 3) Otherwise, if there are no listeners, return -ESRCH. With this patch, the caller knows if the delivery of any of the messages to the listeners have failed: 1) If it fails to deliver any message (for whatever reason), return -ENOBUFS. 2) Otherwise, if all messages were delivered OK, returns 0. 3) Otherwise, if no listeners, return -ESRCH. In the current ctnetlink code and in Netfilter in general, we can add reliable logging and connection tracking event delivery by dropping the packets whose events were not successfully delivered over Netlink. Of course, this option would be settable via /proc as this approach reduces performance (in terms of filtered connections per seconds by a stateful firewall) but providing reliable logging and event delivery (for conntrackd) in return. This patch also changes some clients of netlink_broadcast() that may report ENOBUFS errors via printk. This error handling is not of any help. Instead, the userspace daemons that are listening to those netlink messages should resync themselves with the kernel-side if they hit ENOBUFS. BTW, netlink_broadcast() clients include those that call cn_netlink_send(), nlmsg_multicast() and genlmsg_multicast() since they internally call netlink_broadcast() and return its error value. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCSI] struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-01-021-7/+4
| | | | | | | | [jejb: limit ioctl to returning 20 characters to avoid overrun on long device names and add a few more conversions] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
generated by cgit (git 2.34.1) at 2024-06-20 17:07:30 +0000