- 23 May, 2012 3 commits
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Robert Love authored
Currently the fcoe_ctlr associated with an interface is allocated as a member of struct fcoe_interface. This causes problems when attempting to use the new fcoe_sysfs APIs which allow us to allocate the fcoe_interface as private data to the fcoe_ctlr_device instance. The problem is that libfcoe wants to be able use pointer math to find a fcoe_ctlr's fcoe_ctlr_device as well as finding a fcoe_ctlr_device's assocated fcoe_ctlr. To do this we need to allocate the fcoe_ctlr_device, with private data for the LLD. The private data contains the fcoe_ctlr and its private data is the fcoe_interface. This patch only allocates the fcoe_interface with the fcoe_ctlr, the fcoe_ctlr_device will be added in a later patch, which will complete the below diagram- +------------------+ | fcoe_ctlr_device | +------------------+ | fcoe_ctlr | +------------------+ | fcoe_interface | +------------------+ This prep work will allow us to go from a fcoe_ctlr_device instance to its fcoe_ctlr as well as from a fcoe_ctlr to its fcoe_ctlr_device once the fcoe_sysfs API is in use (later patches in this series). Signed-off-by:
Robert Love <robert.w.love@intel.com> Tested-by:
Ross Brattain <ross.b.brattain@intel.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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Jun'ichi Nomura authored
block congestion control doesn't have any concept of fairness across multiple queues. This means that if SCSI reports the host as busy in the queue congestion control it can result in an unfair starvation situation in dm-mp if there are multiple multipath devices on the same host. For example: http://www.redhat.com/archives/dm-devel/2012-May/msg00123.html The fix for this is to report only the sdev busy state (and ignore the host busy state) in the block congestion control call back. The host is still congested, but the SCSI subsystem will sort out the congestion in a fair way because it knows the relation between the queues and the host. [jejb: fixed up trailing whitespace] Reported-by:
Bernd Schubert <bernd.schubert@itwm.fraunhofer.de> Tested-by:
Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Namjae Jeon authored
Avoid dereferencing a NULL pointer if scsi_host_alloc is failed. Signed-off-by:
Namjae Jeon <linkinjeon@gmail.com> Signed-off-by:
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- 22 May, 2012 37 commits
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Dan Carpenter authored
In the original code, if dma_pool_alloc() fails then we call dma_pool_free(). It causes an error, possibly a NULL dereference. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Dan Carpenter authored
We introduced a new return here and forgot to unlock the mutex. Signed-off-by:
Dan Carpenter <error27@gmail.com> Acked-by:
"Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com> Signed-off-by:
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Nicholas Bellinger authored
This patch adds support for tcm_qla2xxx fabric module for target-core using the new qla_target.c LLD logic. This includes support for explict NodeACLs via configfs using tcm_qla2xxx_setup_nacl_from_rport() from libfc struct fc_host->rports, and demo-mode support for virtual LUN=0 access. This patch also adds support for using tcm_qla2xxx_lport->lport_fcport_map and ->lport_loopid_map of btree_head32 to track struct se_node_acl pointers for individual 24-bit Port ID and 16-bit Loop ID values w/ qla_target_template ->find_sess_by_s_id() and ->find_sess_by_loop_id() used in a number of locations into the primary I/O dispatch logic in qla_target.c LLD code. The main piece for FC Nexus setup is in tcm_qla2xxx_check_initiator_node_acl(), which calls tcm_qla2xxx_set_sess_by_[s_id,loop_id]() to setup our lport->lport_fcport_map and lport_loopid_map pointers respectively, and register the new nexus with TCM via __transport_register_session(). (nab: Add qla_tgt_mgmt_cmd usage with TARGET_SCF_ACK_KREF during TMRs + change tcm_qla2xxx_nacl->nport_id to u32 (DanC)) (danc: tcm_qla2xxx: checking for NULL instead of IS_ERR()) (roland: Fix up v3.5 breakage for removal of transport_do_task_sg_chain + Add hook so qla_target code can shutdown sessions) (steveh: Convert FC address map from flat array to btree) (randy: fix qla2xxx printk format warnings for size_t) (joern: Make most of tcm_qla2xxx static + remove unnecessary workqueue_struct prototypes + use WWN_SIZE instead of hard-coded constants) Signed-off-by:Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by:
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Nicholas Bellinger authored
Add LLD target mode for >= 24xx series HW. This code was originally based on external qla2x00t module based on 8.02.01-k4, and has been refactored to push the bulk of code into mainline qla2xxx.ko LLD -> qla_target.c. The implementation uses internal workqueues for I/O context submission into tcm_qla2xxx code, and includes the struct qla_tgt_func_tmpl API for external interaction to allow qla2xxx LDD to function without direct target-core dependencies: It also enables qla_target.c usage within existing qla2xxx LLD code. This includes: *) Addition of target mode specific members to existing data structures in qla_def.h and struct qla_hw_data->tgt_ops using qla_target.h:struct qla_tgt_func_tmpl *) Addition of struct qla_tgt_func_tmpl and direct calls into qla_target.c logic w/ qlt_* prefixed functions. *) Addition of qla_iocb.c:qla2x00_req_pkt() for ring processing, and qla2x00_issue_marker() for handling request/response queue processing for target mode operation *) Addition of various qla_tgt_mode_enabled() logic checks in qla24xx_nvram_config(), qla2x00_initialize_adapter(), qla2x00_rff_id(), qla2x00_abort_isp(), qla24xx_modify_vp_config(), and qla2x00_vp_abort_isp(). By default the new qlini_mode module parameter is setting initiator-mode to 'enabled' in order for 'modprobe qla2xxx' to continue to function as expected in initiator only mode. Enabling target-mode operation will currently require a: modprobe qla2xxx qlini_mode="disabled" in order to explictly disabled initiator mode and allow target-mode to be enabled via tcm_qla2xxx configfs fabric callers. (nab: Convert to qlini_mode='enabled' by default in qla_target.c) (joern: Remove loop_id from qla_tgt_make_local_sess() arguments + Remove unused s_id + fix s_id endianness bug + simplify qla_tgt_abort_work) (gerard: fix section __exit mismatch in qla_tgt_exit) (arun: Capture ATIO queue during firmware dump + Send SCR in target mode + Target mode review comments) (roland: Don't create duplicate target sessions to address tearing down ACLs with IO in flight + Add missing call to qlt_fc_port_deleted call during qla2x00_schedule_rport_del timeout) Signed-off-by: -
Chad Dupuis authored
commit 491118df Author: Saurav Kashyap <saurav.kashyap@qlogic.com> Date: Tue Aug 16 11:31:50 2011 -0700 [SCSI] qla2xxx: During loopdown perform Diagnostic loopback. The LOOP_DOWN test is not needed. Signed-off-by:
Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by:
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Giridhar Malavali authored
Signed-off-by:
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Giridhar Malavali authored
Signed-off-by:
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Joe Carnuccio authored
Signed-off-by:
Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Saurav Kashyap authored
Signed-off-by:
Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by:
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Joe Carnuccio authored
Signed-off-by:
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Joe Carnuccio authored
The field vp_idx in struct fc_port is a redundant/mirror copy of the same field in struct scsi_qla_host; struct fc_port has a pointer vha to scsi_qla_host which allows the original copy of vp_idx to be readily accessed. Signed-off-by:
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Nigel Kirkland authored
Signed-off-by:
Nigel Kirkland <nigel.kirkland@qlogic.com> Signed-off-by:
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Giridhar Malavali authored
Signed-off-by:
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Andrew Vasquez authored
Both the target-id and LUN are munged in the original printk(). Signed-off-by:
Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by:
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Saurav Kashyap authored
Currently stats is part of ha data structure, common for physical and virtual ports. Moved the stats to vha, each port will have its own stat. Signed-off-by:
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Saurav Kashyap authored
Add an extra layer of logging granularity for messages that are necessary in some circumstances but may flood the kernel log buffer with too many messages otherwise. Signed-off-by:
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Chad Dupuis authored
If interrupt registration failed we could crash the machine as we were trying to deference some pointers which weren't allocated yet. Move the allocation a little earlier and make some checks to the free resource code to make sure that we don't try to free a resource that was never allocated. Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Giridhar Malavali authored
Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Masanari Iida authored
Correct spelling "occured" to "occurred" in drivers/scsi/qla2xxx/qla_mbx.c Signed-off-by:
Masanari Iida <standby24x7@gmail.com> Signed-off-by:
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Chetan Loke authored
Optimized queuecommand handler's to eliminate double head-room checks. The checks are moved inside the 1st if-loop otherwise you would end up checking twice when there is enough head room. Signed-off-by:
Chetan Loke <loke.chetan@gmail.com> Reviewed-by:
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Raul Porcel authored
Replace "Inconisistent" with "Inconsistent" in drivers/scsi/qla2xxx/qla_init.c Signed-off-by:
Raul Porcel <armin76@gentoo.org> Signed-off-by:
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Aaron Lu authored
For scsi devices which use scsi bus runtime callback, runtime suspend will call scsi_dev_type_suspend, and if the drv->suspend failed, the device will still be in active state. But since scsi_device_quiesce is called, the device will not be able to respond any more commands. So add a check here to see if err occured, if so, bring the device back to normal state with scsi_device_resume. Signed-off-by:
Aaron Lu <aaron.lu@amd.com> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Krishna Gudipati authored
Made changes to set the fc_host sysfs entries supported_speeds, supported_classes etc., during the vport creation from the FC transport template. Signed-off-by:
Krishna Gudipati <kgudipat@brocade.com> Signed-off-by:
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Bhanu Prakash Gollapudi authored
Signed-off-by:
Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by:
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Bhanu Prakash Gollapudi authored
When the task management IO times out, or a flush operation is performed while task management IO is pending, driver is not cleaning up the IO. This patch cleans up the IO for the above cases. Signed-off-by:
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Bhanu Prakash Gollapudi authored
When IO abort times out during eh_abort or a flush operation is performed while abort is pending, the driver is not cleaning up the IO and thus not reducing the IO reference count. With this change, as part of explicit logout, the IO is cleaned up. Signed-off-by:
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Bhanu Prakash Gollapudi authored
Commit 907c07d4 added more cases to do FLOGI retry on receiving bad response. Remove the code that drops the packet and allow the stack to handle bad FLOGI response. Signed-off-by:
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Laurent Pinchart authored
When using the MERAM the LCDC line size needs to be programmed with a MERAM-specific value different than the real frame buffer pitch. Fix it. Reported-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: stable@vger.kernel.org # for 3.4 Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core irq changes from Ingo Molnar: "A collection of small fixes." By Thomas Gleixner * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: hexagon: Remove select of not longer existing Kconfig switches arm: Select core options instead of redefining them genirq: Do not consider disabled wakeup irqs genirq: Allow check_wakeup_irqs to notice level-triggered interrupts genirq: Be more informative on irq type mismatch genirq: Reject bogus threaded irq requests genirq: Streamline irq_action
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull security subsystem updates from James Morris: "New notable features: - The seccomp work from Will Drewry - PR_{GET,SET}_NO_NEW_PRIVS from Andy Lutomirski - Longer security labels for Smack from Casey Schaufler - Additional ptrace restriction modes for Yama by Kees Cook" Fix up trivial context conflicts in arch/x86/Kconfig and include/linux/filter.h * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (65 commits) apparmor: fix long path failure due to disconnected path apparmor: fix profile lookup for unconfined ima: fix filename hint to reflect script interpreter name KEYS: Don't check for NULL key pointer in key_validate() Smack: allow for significantly longer Smack labels v4 gfp flags for security_inode_alloc()? Smack: recursive tramsmute Yama: replace capable() with ns_capable() TOMOYO: Accept manager programs which do not start with / . KEYS: Add invalidation support KEYS: Do LRU discard in full keyrings KEYS: Permit in-place link replacement in keyring list KEYS: Perform RCU synchronisation on keys prior to key destruction KEYS: Announce key type (un)registration KEYS: Reorganise keys Makefile KEYS: Move the key config into security/keys/Kconfig KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32 compat Yama: remove an unused variable samples/seccomp: fix dependencies on arch macros Yama: add additional ptrace scopes ... -
Linus Torvalds authored
Merge tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus Pull virtio updates from Rusty Russell. * tag 'virtio-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: virtio: fix typo in comment virtio-mmio: Devices parameter parsing virtio_blk: Drop unused request tracking list virtio-blk: Fix hot-unplug race in remove method virtio: Use ida to allocate virtio index virtio: balloon: separate out common code between remove and freeze functions virtio: balloon: drop restore_common() 9p: disconnect channel when PCI device is removed virtio: update documentation to v0.9.5 of spec
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Chen Baozi authored
- Delete "@request_vqs" and "@free_vqs" comments, since they are no longer in struct virtio_config_ops. - According to the macro below, "@val" should be "@v". Signed-off-by:
Chen Baozi <chenbaozi@gmail.com> Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au>
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Pawel Moll authored
This patch adds an option to instantiate guest virtio-mmio devices basing on a kernel command line (or module) parameter, for example: virtio_mmio.devices=0x100@0x100b0000:48 Signed-off-by:
Pawel Moll <pawel.moll@arm.com> Signed-off-by:
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Asias He authored
Benchmark shows small performance improvement on fusion io device. Before: seq-read : io=1,024MB, bw=19,982KB/s, iops=39,964, runt= 52475msec seq-write: io=1,024MB, bw=20,321KB/s, iops=40,641, runt= 51601msec rnd-read : io=1,024MB, bw=15,404KB/s, iops=30,808, runt= 68070msec rnd-write: io=1,024MB, bw=14,776KB/s, iops=29,552, runt= 70963msec After: seq-read : io=1,024MB, bw=20,343KB/s, iops=40,685, runt= 51546msec seq-write: io=1,024MB, bw=20,803KB/s, iops=41,606, runt= 50404msec rnd-read : io=1,024MB, bw=16,221KB/s, iops=32,442, runt= 64642msec rnd-write: io=1,024MB, bw=15,199KB/s, iops=30,397, runt= 68991msec Signed-off-by:
Asias He <asias@redhat.com> Signed-off-by:
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