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2009-12-05nfs41: check SEQUENCE status flagAlexandros Batsakis
the server can indicate a number of error conditions by setting the appropriate bits in the SEQUENCE operation. The client re-establishes state with the server when it receives one of those, with the action depending on the specific case. Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-05Merge branch 'tracing-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (40 commits) tracing: Separate raw syscall from syscall tracer ring-buffer-benchmark: Add parameters to set produce/consumer priorities tracing, function tracer: Clean up strstrip() usage ring-buffer benchmark: Run producer/consumer threads at nice +19 tracing: Remove the stale include/trace/power.h tracing: Only print objcopy version warning once from recordmcount tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used ring-buffer: Move access to commit_page up into function used tracing: do not disable interrupts for trace_clock_local ring-buffer: Add multiple iterations between benchmark timestamps kprobes: Sanitize struct kretprobe_instance allocations tracing: Fix to use __always_unused attribute compiler: Introduce __always_unused tracing: Exit with error if a weak function is used in recordmcount.pl tracing: Move conditional into update_funcs() in recordmcount.pl tracing: Add regex for weak functions in recordmcount.pl tracing: Move mcount section search to front of loop in recordmcount.pl tracing: Fix objcopy revision check in recordmcount.pl tracing: Check absolute path of input file in recordmcount.pl tracing: Correct the check for number of arguments in recordmcount.pl ...
2009-12-05Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Fix trace_marker output tracing: Fix event format export tracing: Fix return value of tracing_stats_read()
2009-12-05Merge branch 'irq-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Fix spurious irq seqfile conversion genirq: switch /proc/irq/*/spurious to seq_file irq: Do not attempt to create subdirectories if /proc/irq/<irq> failed irq: Remove unused debug_poll_all_shared_irqs() irq: Fix docbook comments irq: trivial: Fix typo in comment for #endif
2009-12-05Merge branch 'core-signal-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: signal: Print warning message when dropping signals signal: Fix alternate signal stack check
2009-12-05Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits) rcu: Make RCU's CPU-stall detector be default rcu: Add expedited grace-period support for preemptible RCU rcu: Enable fourth level of TREE_RCU hierarchy rcu: Rename "quiet" functions rcu: Re-arrange code to reduce #ifdef pain rcu: Eliminate unneeded function wrapping rcu: Fix grace-period-stall bug on large systems with CPU hotplug rcu: Eliminate __rcu_pending() false positives rcu: Further cleanups of use of lastcomp rcu: Simplify association of forced quiescent states with grace periods rcu: Accelerate callback processing on CPUs not detecting GP end rcu: Mark init-time-only rcu_bootup_announce() as __init rcu: Simplify association of quiescent states with grace periods rcu: Rename dynticks_completed to completed_fqs rcu: Enable synchronize_sched_expedited() fastpath rcu: Remove inline from forward-referenced functions rcu: Fix note_new_gpnum() uses of ->gpnum rcu: Fix synchronization for rcu_process_gp_end() uses of ->completed counter rcu: Prepare for synchronization fixes: clean up for non-NO_HZ handling of ->completed counter rcu: Cleanup: balance rcu_irq_enter()/rcu_irq_exit() calls ...
2009-12-05Merge branch 'core-printk-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: ratelimit: Make suppressed output messages more useful printk: Remove ratelimit.h from kernel.h ratelimit: Fix/allow use in atomic contexts ratelimit: Use per ratelimit context locking
2009-12-05Merge branch 'core-locking-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: mutex: Fix missing conditions to build mutex_spin_on_owner() mutex: Better control mutex adaptive spinning config locking, task_struct: Reduce size on TRACE_IRQFLAGS and 64bit locking: Use __[SPIN|RW]_LOCK_UNLOCKED in [spin|rw]_lock_init() locking: Remove unused prototype locking: Reduce ifdefs in kernel/spinlock.c locking: Make inlining decision Kconfig based
2009-12-05Merge branch 'core-ipi-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: generic-ipi: Add smp_call_function_any() generic-ipi: Fix misleading smp_call_function*() description
2009-12-05Merge branch 'core-iommu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits) x86, Calgary IOMMU quirk: Find nearest matching Calgary while walking up the PCI tree x86/amd-iommu: Remove amd_iommu_pd_table x86/amd-iommu: Move reset_iommu_command_buffer out of locked code x86/amd-iommu: Cleanup DTE flushing code x86/amd-iommu: Introduce iommu_flush_device() function x86/amd-iommu: Cleanup attach/detach_device code x86/amd-iommu: Keep devices per domain in a list x86/amd-iommu: Add device bind reference counting x86/amd-iommu: Use dev->arch->iommu to store iommu related information x86/amd-iommu: Remove support for domain sharing x86/amd-iommu: Rearrange dma_ops related functions x86/amd-iommu: Move some pte allocation functions in the right section x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc x86/amd-iommu: Use get_device_id and check_device where appropriate x86/amd-iommu: Move find_protection_domain to helper functions x86/amd-iommu: Simplify get_device_resources() x86/amd-iommu: Let domain_for_device handle aliases x86/amd-iommu: Remove iommu specific handling from dma_ops path x86/amd-iommu: Remove iommu parameter from __(un)map_single x86/amd-iommu: Make alloc_new_range aware of multiple IOMMUs ...
2009-12-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (31 commits) GFS2: Fix glock refcount issues writeback: remove unused nonblocking and congestion checks (gfs2) GFS2: drop rindex glock to refresh rindex list GFS2: Tag all metadata with jid GFS2: Locking order fix in gfs2_check_blk_state GFS2: Remove dirent_first() function GFS2: Display nobarrier option in /proc/mounts GFS2: add barrier/nobarrier mount options GFS2: remove division from new statfs code GFS2: Improve statfs and quota usability GFS2: Use dquot_send_warning() VFS: Export dquot_send_warning GFS2: Add set_xquota support GFS2: Add get_xquota support GFS2: Clean up gfs2_adjust_quota() and do_glock() GFS2: Remove constant argument from qd_get() GFS2: Remove constant argument from qdsb_get() GFS2: Add proper error reporting to quota sync via sysfs GFS2: Add get_xstate quota function GFS2: Remove obsolete code in quota.c ...
2009-12-05Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (30 commits) TOMOYO: Add recursive directory matching operator support. remove CONFIG_SECURITY_FILE_CAPABILITIES compile option SELinux: print denials for buggy kernel with unknown perms Silence the existing API for capability version compatibility check. LSM: Move security_path_chmod()/security_path_chown() to after mutex_lock(). SELinux: header generation may hit infinite loop selinux: Fix warnings security: report the module name to security_module_request Config option to set a default LSM sysctl: require CAP_SYS_RAWIO to set mmap_min_addr tpm: autoload tpm_tis based on system PnP IDs tpm_tis: TPM_STS_DATA_EXPECT workaround define convenient securebits masks for prctl users (v2) tpm: fix header for modular build tomoyo: improve hash bucket dispersion tpm add default function definitions LSM: imbed ima calls in the security hooks SELinux: add .gitignore files for dynamic classes security: remove root_plug SELinux: fix locking issue introduced with c6d3aaa4e35c71a3 ...
2009-12-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (50 commits) pcmcia: rework the irq_req_t typedef pcmcia: remove deprecated handle_to_dev() macro pcmcia: pcmcia_request_window() doesn't need a pointer to a pointer pcmcia: remove unused "window_t" typedef pcmcia: move some window-related code to pcmcia_ioctl.c pcmcia: Change window_handle_t logic to unsigned long pcmcia: Pass struct pcmcia_socket to pcmcia_get_mem_page() pcmcia: Pass struct pcmcia_device to pcmcia_map_mem_page() pcmcia: Pass struct pcmcia_device to pcmcia_release_window() drivers/pcmcia: remove unnecessary kzalloc pcmcia: correct handling for Zoomed Video registers in topic.h pcmcia: fix printk formats pcmcia: autoload module pcmcia pcmcia/staging: update comedi drivers PCMCIA: stop duplicating pci_irq in soc_pcmcia_socket PCMCIA: ss: allow PCI IRQs > 255 PCMCIA: soc_common: remove 'dev' member from soc_pcmcia_socket PCMCIA: soc_common: constify soc_pcmcia_socket ops member PCMCIA: sa1111: remove duplicated initializers PCMCIA: sa1111: wrap soc_pcmcia_socket to contain sa1111 specific data ...
2009-12-05Add support for GCC-4.5's __builtin_unreachable() to compiler.h (v2)David Daney
Starting with version 4.5, GCC has a new built-in function __builtin_unreachable() that can be used in places like the kernel's BUG() where inline assembly is used to transfer control flow. This eliminated the need for an endless loop in these places. The patch adds a new macro 'unreachable()' that will expand to either __builtin_unreachable() or an endless loop depending on the compiler version. Change from v1: Simplify unreachable() for non-GCC 4.5 case. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05Merge branch 'devel-stable' into develRussell King
2009-12-04PCI: add pci_request_acsChris Wright
Commit ae21ee65e8bc228416bbcc8a1da01c56a847a60c "PCI: acs p2p upsteram forwarding enabling" doesn't actually enable ACS. Add a function to pci core to allow an IOMMU to request that ACS be enabled. The existing mechanism of using iommu_found() in the pci core to know when ACS should be enabled doesn't actually work due to initialization order; iommu has only been detected not initialized. Have Intel and AMD IOMMUs request ACS, and Xen does as well during early init of dom0. Cc: Allen Kay <allen.m.kay@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-12-04PCI: portdrv: remove unnecessary struct pcie_port_dataKenji Kaneshige
Remove 'port_type' field in struct pcie_port_data(), because we can get port type information from struct pci_dev. With this change, this patch also does followings: - Remove struct pcie_port_data because it no longer has any field. - Remove portdrv private definitions about port type (PCIE_RC_PORT, PCIE_SW_UPSTREAM_PORT and PCIE_SW_DOWNSTREAM_PORT), and use generic definitions instead. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-12-04PCI: portdrv: cleanup service irqs initializationKenji Kaneshige
This patch cleans up the service irqs initialization as follows: - Remove 'irq_mode' field in pcie_port_data and related definitions, which is not needed because we can get the same information from 'is_msix', 'is_msi' and 'pin' fields in struct pci_dev. - Change the name of 'vectors' argument of assign_interrupt_mode() to 'irqs' because it holds irq numbers actually. People might confuse it with CPU vector or MSI/MSI-X vector. - Change function name assign_interrupt_mode() to init_service_irqs() becasuse we no longer have 'irq_mode' data structure, and new name is more straightforward (IMO). Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-12-04tree-wide: fix misspelling of "definition" in commentsAdam Buchbinder
"Definition" is misspelled "defintion" in several comments; this patch fixes them. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2009-12-04nfs41: nfs41: fix state manager deadlock in session resetAndy Adamson
If the session is reset during state recovery, the state manager thread can sleep on the slot_tbl_waitq causing a deadlock. Add a completion framework to the session. Have the state manager thread set a new session state (NFS4CLNT_SESSION_DRAINING) and wait for the session slot table to drain. Signal the state manager thread in nfs41_sequence_free_slot when the NFS4CLNT_SESSION_DRAINING bit is set and the session is drained. Reported-by: Trond Myklebust <trond@netapp.com> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-04[SCSI] libfc: Add target reset flag to FCP header fileChristof Schmitt
While the target reset task management function has been deprecated in newer specs, it is still in use by SCSI FC drivers and there is no real replacement. Add the target reset flag to the FCP header file to allow usage of this definition in SCSI FC drivers. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] fcoe, libfc: add get_lesb() to allow LLD to fill the link error ↵Yi Zou
status block (LESB) Add a member function pointer as get_lesb to libfc_function_template so LLD can fill the LESB based on its own statistics. For fcoe, it fills the LESB as a fcoe_fc_els_lesb struct according to FC-BB-5. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: add fcoe_fc_els_lesb to fc_fcoe.h for FC-BB-5 LESB definitionsYi Zou
Add struct fcoe_fc_els_lesb as described in FC-BB-5 LESB for FCoE. It has the same size as LESB defined in FC-FS-3 (struct fc_els_lesb) but members have different meanings according to FC-BB-5. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfcoe: add checking disable flag in FIP_FKA_ADVYi Zou
When the D bit is set if the FKA_ADV_Period of the FIP Discovery Advertisement, the ENode should not transmit period ENode FIP Keep Alive and VN_Port FIP Keep Alive (FC-BB-5 Rev2, 7.8.3.13). Note that fcf->flags is taken directly from the fip_header, I am claiming one bit for the purpose of the FIP_FKA_Period D bit as FIP_FL_FK_ADV_B, and use FIP_HEADER_FLAGS as bitmask for bits used in fip_header. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: add FC-BB-5 LESB counters to fcoe_dev_statsYi Zou
FC-BB-5 Rev2.0, Clause 7.10 extends the FC-LS-3 LESB for FC-BB_E. We are already tracking Link Failure Count so add the rest in this patch. For VLinkFailureCount and MissDiscAdvCount, they are part of the per-cpu fcoe_dev_stats. For SymbolErrorCount, ErroredBlockCount, and FCSErrorCount, they are defined in IEEE 802.3-2008 and are per LLD. They are expected to come from LLD. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] osd_protocol.h: Add missing #includeMartin Michlmayr
include/scsi/osd_protocol.h uses ALIGN() without an #include <linux/kernel.h>, leading to: | include/scsi/osd_protocol.h:362: error: implicit declaration of function 'ALIGN' Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libosd: Error handling revampedBoaz Harrosh
Administer some love to the osd_req_decode_sense function * Fix a bad bug with osd_req_decode_sense(). If there was no scsi residual, .i.e the request never reached the target, then all the osd_sense_info members where garbage. * Add grossly missing in/out_resid to osd_sense_info and fill them in properly. * Define an osd_err_priority enum which divides the possible errors into 7 categories in ascending severity. Each category is also assigned a Linux return code translation. Analyze the different osd/scsi/block returned errors and set the proper osd_err_priority and Linux return code accordingly. * extra check a few situations so not to get stuck with inconsistent error view. Example an empty residual with an error code, and other places ... Lots of libosd's osd_req_decode_sense clients had this logic in some form or another. Consolidate all these into one place that should actually know about osd returns. Thous translating it to a more abstract error. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libosd: osd_dev_info: Unique Identification of an OSD deviceBoaz Harrosh
Define an osd_dev_info structure that Uniquely identifies an OSD device lun on the network. The identification is built from unique target attributes and is the same for all network/SAN machines. osduld_info_lookup() - NEW New API that will lookup an osd_dev by its osd_dev_info. This is used by pNFS-objects for cross network global device identification. And by exofs multy-device support, the device info is specified in the on-disk exofs device table. osduld_device_info() - NEW Given an osd_dev handle returns its associated osd_dev_info. The ULD fetches this information at startup and hangs it on each OSD device. (This is a fast operation that can be called at any condition) osduld_device_same() - NEW With a given osd_dev at one hand and an osd_dev_info at another, we would like to know if they are the same device. Two osd_dev handles can be checked by: osduld_device_same(od1, osduld_device_info(od2)); osd_auto_detect_ver() - REVISED Now returns an osd_dev_info structure. Is only called once by ULD as before. See added comments for how to use. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] osduld: Use device->release instead of internal krefBoaz Harrosh
The true logic of this patch will be clear in the next patch where we use the class_find_device() API. When doing so the use of an internal kref leaves us a narrow window where a find is started while the actual object can go away. Using the device's kobj reference solves this problem because now the same kref is used for both operations. (Remove and find) Core changes * Embed a struct device in uld_ structure and use device_register instead of devie_create. Set __remove to be the device release function. * __uld_get/put is just get_/put_device. Now every thing is accounted for on the device object. Internal kref is removed. * At __remove() we can safely de-allocate the uld_ structure. (The function has moved to avoid forward declaration) Some cleanups * Use class register/unregister is cleaner for this driver now. * cdev ref-counting games are no longer necessary I have incremented the device version string in case of new bugs. Note: Previous bugfix of taking the reference around fput() still applies. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libosd: osd_sense: OSD_CFO_PERMISSIONSBoaz Harrosh
Add one more important cdb_field_offset that can be returned with scsi_invalid_field_in_cdb. It is the offset of the permissions_bit_mask field in the capabilities structure. Interestingly, the offset is the same for V1/V2 Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libosd: osd_dev_is_ver1 - Minor API cleanupBoaz Harrosh
define a new osd_dev_is_ver1 that operates on devices and the old osd_req_is_ver1 uses that new API. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libiscsi: add warm target reset tmf supportMike Christie
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>
2009-12-04[SCSI] libiscsi: Check TMF state before sending PDUMike Christie
Patch and mail from both MikeC and HannesR: Before we're trying to send a PDU we have to check whether a TMF is active. If so and if the PDU will be affected by the TMF we should allow only Data-out PDUs to be sent. If fast_abort is set, no Data-out PDUs will be sent while a LUN reset is being processed for a affected LUN. fast_abort is now ingored during a ABORT TASK tmf. We will not send any Data-outs for a task if the task is being aborted. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] scsi_lib_dma: fix bug with dma maps on nested scsi objectsJames Bottomley
Some of our virtual SCSI hosts don't have a proper bus parent at the top, which can be a problem for doing DMA on them This patch makes the host device cache a pointer to the physical bus device and provides an extra API for setting it (the normal API picks it up from the parent). This patch also modifies the qla2xxx and lpfc vport logic to use the new DMA host setting API. Acked-By: James Smart <james.smart@emulex.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: register FC4 features with the FC switchJoe Eykholt
Customers and certification tests have pointed out that we don't show up on the switch management software as an initiator. On some MDS switches 'show fcns database' command shows libfc initiators as 'fcp' not 'fcp:init' like other initiators. On others switches, I think the switch gets the features by doing a PRLI, but it may be only certain models or under certain configurations. Fix this by registering our FC4 features with the RFF_ID CT request after local port login and after the RFT_ID. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfcoe: fcoe: simplify receive FLOGI responseJoe Eykholt
There was a locking problem where the fip->lock was held during the call to update_mac(). The rtnl_lock() must be taken before the fip->lock, not the other way around. This fixes that. Now that fcoe_ctlr_recv_flog() is called only from the response handler to a FLOGI request, some checking can be eliminated. Instead of calling update_mac(), just fill in the granted_mac address for the passed-in frame (skb). Eliminate the passed-in source MAC address since it is also in the skb. Also, in fcoe, call fcoe_set_src_mac() directly instead of going thru the fip function pointer. This will generate less code. Then, since fip isn't needed for LOGO response, use lport as the arg. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: add set_fid function to libfc templateJoe Eykholt
This is to notify the LLD when an FC_ID is assigned to the local port. The fnic driver needs to push the assigned FC_ID to firmware. It currently does this by intercepting the FLOGI responses, and in order to make that code more common with FIP and NPIV, it makes more sense to wait until the local port has completely handled the FLOGI or FDISC response. Also, when we fix point-to-point FC_ID assignment, we'll need this callback as well. Add a call to the libfc template, which is called whenever the local port FC_ID is being assigned. It defaults to fc_lport_set_fid(), supplied by libfc. As additional benefit of this function, the LLD may determine the MAC address that caused the change by looking at the received frame. We also print the assigned port ID as long as it isn't 0. Setting port ID to 0 happens often in reset while retrying FLOGI, and would be uninteresting. This replaces the previous message which didn't identify the host adapter instance. patch v2 note: changed one word in a comment. "intercepted" -> "provided". Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: fix symbolic name registrations smashing skb dataJoe Eykholt
The strncpy for RSPN_ID and RSNN_NN requests was padding past the allocated frame size. Get the string length before filling in the ct header. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: fix RNN_ID smashing skb payloadJoe Eykholt
The code that filled in the name server RNN_ID (register node name) request had somehow gotten a line in it from the RFT_ID code which copies 32 bytes of data over the relatively short payload. This caused some corruption and hangs. Simply deleted the extraneous line. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfcoe: FIP should report link to libfc whether selected or notJoe Eykholt
The fnic driver with FIP is reporting link up, even though it's down. When the interface is shut down by the switch, we receive a clear virtual link, and set the state reported to libfc as down, although we still report it up. Clearly wrong. That causes the subsequent link down event not to be reported, and /sys shows the host "Online". Currently, in FIP mode, if an FCF times out, then link to libfc is reported as down, to stop FLOGIs. That interferes with the LLD link down being reported. Users really need to know the physical link information, to diagnose cabling issues, so physical link status should be reported to libfc. If the selected FCF needs to be reported, that should be done separately, in a later patch. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfcoe: Allow FIP to be disabled by the driverJoe Eykholt
Allow FIP to be disabled by the driver for devices that want to use libfcoe in non-FIP mode. The driver merely sets the fcoe_ctlr mode to the state which should be entered when the link comes up. The default is auto. No change is needed for fcoe.c which uses auto mode. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] fcoe, libfc: use single frame allocation APIVasu Dev
Cleans up frame allocation APIs to have just single fc_frame_alloc API. Removes _fc_frame_alloc, renames __fc_frame_alloc to _fc_frame_alloc. Modifies fc_fcp_send_data for removed _fc_frame_alloc, fc_fcp_send_data was the only user of removed _fc_frame_alloc. Also Adds check in fc_frame_alloc to do mod by 4 for only non-zero len value. This patch is prep work to fix can_queue reducing in next patch. Single fc_frame_alloc API helps in fixing can_queue reducing in next patch. Signed-off-by: Vasu Dev <vasu.dev@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfcoe: formatting and comment cleanupsRobert Love
Ensures that there are kernel-doc style comments for all routines and structures. There were also a few instances of fc_lport's named 'lp' which were switched to 'lport' as per the libfc/libfcoe/fcoe naming convention. Also, emacs 'indent-region' and 'tabify' were ran on libfcoe.c. Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: Formatting cleanups across libfcRobert Love
This patch makes a variety of cleanup changes to all libfc files. This patch adds kernel-doc headers to all functions lacking them and attempts to better format existing headers. It also add kernel-doc headers to structures. This patch ensures that the current naming conventions for local ports, remote ports and remote port private data is upheld in the following manner. struct instance (i.e. variable name) -------------------------------------------------- fc_lport lport fc_rport rport fc_rport_libfc_priv rpriv fc_rport_priv rdata I also renamed dns_rp and ptp_rp to dns_rdata and ptp_rdata respectively. I used emacs 'indent-region' and 'tabify' on all libfc files to correct spacing alignments. I feel sorry for anyone attempting to review this patch. Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc, fcoe: Add FC passthrough supportSteve Ma
This is the Open-FCoE implementation of the FC passthrough support via bsg interface. Passthrough support is added to both N_Ports and VN_Ports. Signed-off-by: Steve Ma <steve.ma@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: Export FC headersRobert Love
Export fc_els.h, fc_fs.h, fc_gs.h and fc_ns.h so that they may be used by applications. This will be needed for FC Passthrough applications like fcping, but could be used by other applications. Fix to include <linux/types.h> to exported files provided by Chris Leech <christopher.leech@intel.com>. Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: Register Symbolic Port Name (RSPN_ID)Chris Leech
Register the fc_host symbolic name as the symbolic port name with the fabric name server. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: Register Symbolic Node Name (RSNN_NN)Chris Leech
Register the fc_host symbolic name as the symbolic node name with the fabric name server. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04[SCSI] libfc: RNN_ID may be required before RSNN_NN with some switchesChris Leech
One could interpret FC-GS-5 to say that an explicit RNN_ID is required before RSNN_NN is allowed to succeed, which is why RNN_ID was not obsoleted along with RPN_ID acording to this document: ftp://ftp.t11.org/t11/member/fc/gs-5/05-546v2.pdf Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>