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2015-07-31target: Remove cmd->se_ordered_id (unused except debug log lines)Roland Dreier
For every command, we set se_ordered_id by doing atomic_inc_return on dev->dev_ordered_id for the corresponding device. However, the only places this value gets used are in pr_debug() calls, which doesn't seem worth an extra atomic op per IO. Signed-off-by: Roland Dreier <roland@purestorage.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-30target: add support for START_STOP_UNIT SCSI opcodeBrian Bunker
AIX servers using VIOS servers that virtualize FC cards will have a problem booting without support for START_STOP_UNIT. Cite sbc3r36 exactly, clean up if conditions (rob + hch) Signed-off-by: Brian Bunker <brian@purestorage.com> Signed-off-by: Spencer Baugh <sbaugh@catern.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: "Robert Elliott (Server Storage)" <Elliott@hp.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-30target: improve unsupported opcode messageJoern Engel
Make the warning about unsupported SCSI opcode more useful: - Add in the initiator name so we know who's sending it. - Print the warning even for opcodes that spc_parse_cdb() knows about but that we don't handle. Signed-off-by: Joern Engel <joern@purestorage.com> Signed-off-by: Spencer Baugh <sbaugh@catern.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-30target: allow underflow/overflow for PR OUT etc. commandsRoland Dreier
It's not necessarily a fatal error if a command with a data-out phase has a data length that differs from the transport data length (e.g. PERSISTENT RESERVE OUT might have a parameter list length in the CDB that's smaller than the FC_DL field), so allow these commands. The Windows compliance test sends them. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-30target/iscsi: Use proper SGL accessors for digest computationAlexei Potashnik
Current implementation assumes that all the buffers of an IO are linked with a single SG list, which is OK because target-core is only allocating a contigious scatterlist region. However, this assumption is wrong for se_cmd descriptors that want to use chaining across multiple SGL regions. Fix this up by using proper SGL accessors for digest payload computation. Signed-off-by: Alexei Potashnik <alexei@purestorage.com> Cc: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-30target: remove initiatorname field in se_acl_lunChris Zankel
From: Chris Zankel <czankel@purestorage.com> The initiatorname field in se_acl_lun is only a copy of the same field in se_node_acl, so remove it and use the version in se_node_acl where needed (it's actually only used for pr_debug) Signed-off-by: Chris Zankel <czankel@purestorage.com> Signed-off-by: Spencer Baugh <spencer.baugh@purestorage.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23libiscsi: Use scsi helper to set information descriptorSagi Grimberg
In case encountered a PI error, use scsi_set_sense_information instead of open coding information descriptor format. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23target: Return descriptor format sense data in case the LU spans 64bit sectorsSagi Grimberg
In case a LU spans 64bit sectors, fixed size sense data information field is only 32 bits which means the sector information will be truncated. Thus, if the LU spans 64bit sectors, use descriptor format sense data to correctly report sector information. Reported-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23scsi: Protect against buffer possible overflow in scsi_set_sense_informationSagi Grimberg
Make sure that the input sense buffer has sufficient length to fit the information descriptor (12 additional bytes). Modify scsi_set_sense_information to receive the sense buffer length and adjust its callers scsi target and libata. (Fix patch fuzz in scsi_set_sense_information - nab) Reported-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: Tejun Heo <tj@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23scsi: Fix wrong additional sense length in descriptor formatSagi Grimberg
The sense header additional sense length should be the accumulated size of all the descriptors. Information descriptor size is 12 bytes. When setting the additional sense length we should add 0xc instead of 0xa. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23tcm_qla2xxx: Remove set-but-not-used variablesBart Van Assche
Detected these by building with W=1. This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23target: Return ABORTED_COMMAND sense key for PI errorsSagi Grimberg
PI errors were reported with ILLEGAL_REQUEST sense key but there was actually no problem with the request. Target detected PI errors should be reported with aborted command sense key. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23target: Use scsi helpers to build the sense data correctlySagi Grimberg
Instead of open coding the sense buffer construction, use scsi scsi_build_sense_buffer() and scsi_set_sense_information() helpers which moved to scsi_common. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23scsi: Move sense handling routines to scsi_commonSagi Grimberg
Sense data handling is also done in the target stack. Hence, move sense handling routines to scsi_common so the target will be able to use them as well. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23target: Split transport_send_check_condition_and_sense()Bart Van Assche
Move the code for translating a sense_reason_t code into a SCSI status ASC and ASCQ codes from transport_send_check_condition_and_sense() into the new function translate_sense_reason(). Convert the switch statement that performs the translation into table-driven code. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23target: Inline transport_get_sense_codes()Bart Van Assche
Inline this function in its call site since it performs a trivial task and since it is only called once. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23tcm_loop: Send I_T_NEXUS_LOSS_OCCURRED UAHannes Reinecke
If the virtual SAS link is set to 'offline' we should be queueing an I_T_NEXUS_LOSS_OCCURRED UA. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-23tcm_loop: Remove SAS vestigiesHannes Reinecke
tcm_loop is able to emulate several protocols, so remove last vestigies of the SAS protocol. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-06target: Use struct t10_pi_tupleSagi Grimberg
Its not a good idea to keep target specific definition of the same t10-pi tuple. (Fix v4.2-rc1 patch fuzz - nab) Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-05Merge tag 'platform-drivers-x86-v4.2-2' of ↵Linus Torvalds
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull late x86 platform driver updates from Darren Hart: "The following came in a bit later and I wanted them to bake in next a few more days before submitting, thus the second pull. A new intel_pmc_ipc driver, a symmetrical allocation and free fix in dell-laptop, a couple minor fixes, and some updated documentation in the dell-laptop comments. intel_pmc_ipc: - Add Intel Apollo Lake PMC IPC driver tc1100-wmi: - Delete an unnecessary check before the function call "kfree" dell-laptop: - Fix allocating & freeing SMI buffer page - Show info about WiGig and UWB in debugfs - Update information about wireless control" * tag 'platform-drivers-x86-v4.2-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: intel_pmc_ipc: Add Intel Apollo Lake PMC IPC driver tc1100-wmi: Delete an unnecessary check before the function call "kfree" dell-laptop: Fix allocating & freeing SMI buffer page dell-laptop: Show info about WiGig and UWB in debugfs dell-laptop: Update information about wireless control
2015-07-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: "Assorted VFS fixes and related cleanups (IMO the most interesting in that part are f_path-related things and Eric's descriptor-related stuff). UFS regression fixes (it got broken last cycle). 9P fixes. fs-cache series, DAX patches, Jan's file_remove_suid() work" [ I'd say this is much more than "fixes and related cleanups". The file_table locking rule change by Eric Dumazet is a rather big and fundamental update even if the patch isn't huge. - Linus ] * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (49 commits) 9p: cope with bogus responses from server in p9_client_{read,write} p9_client_write(): avoid double p9_free_req() 9p: forgetting to cancel request on interrupted zero-copy RPC dax: bdev_direct_access() may sleep block: Add support for DAX reads/writes to block devices dax: Use copy_from_iter_nocache dax: Add block size note to documentation fs/file.c: __fget() and dup2() atomicity rules fs/file.c: don't acquire files->file_lock in fd_install() fs:super:get_anon_bdev: fix race condition could cause dev exceed its upper limitation vfs: avoid creation of inode number 0 in get_next_ino namei: make set_root_rcu() return void make simple_positive() public ufs: use dir_pages instead of ufs_dir_pages() pagemap.h: move dir_pages() over there remove the pointless include of lglock.h fs: cleanup slight list_entry abuse xfs: Correctly lock inode when removing suid and file capabilities fs: Call security_ops->inode_killpriv on truncate fs: Provide function telling whether file_remove_privs() will do anything ...
2015-07-04Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "It's been a busy development cycle for target-core in a number of different areas. The fabric API usage for se_node_acl allocation is now within target-core code, dropping the external API callers for all fabric drivers tree-wide. There is a new conversion to RCU hlists for se_node_acl and se_portal_group LUN mappings, that turns fast-past LUN lookup into a completely lockless code-path. It also removes the original hard-coded limitation of 256 LUNs per fabric endpoint. The configfs attributes for backends can now be shared between core and driver code, allowing existing drivers to use common code while still allowing flexibility for new backend provided attributes. The highlights include: - Merge sbc_verify_dif_* into common code (sagi) - Remove iscsi-target support for obsolete IFMarker/OFMarker (Christophe Vu-Brugier) - Add bidi support in target/user backend (ilias + vangelis + agover) - Move se_node_acl allocation into target-core code (hch) - Add crc_t10dif_update common helper (akinobu + mkp) - Handle target-core odd SGL mapping for data transfer memory (akinobu) - Move transport ID handling into target-core (hch) - Move task tag into struct se_cmd + support 64-bit tags (bart) - Convert se_node_acl->device_list[] to RCU hlist (nab + hch + paulmck) - Convert se_portal_group->tpg_lun_list[] to RCU hlist (nab + hch + paulmck) - Simplify target backend driver registration (hch) - Consolidate + simplify target backend attribute implementations (hch + nab) - Subsume se_port + t10_alua_tg_pt_gp_member into se_lun (hch) - Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (hch + nab) - Drop unnecessary core_tpg_register TFO parameter (nab) - Use 64-bit LUNs tree-wide (hannes) - Drop left-over TARGET_MAX_LUNS_PER_TRANSPORT limit (hannes)" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (76 commits) target: Bump core version to v5.0 target: remove target_core_configfs.h target: remove unused TARGET_CORE_CONFIG_ROOT define target: consolidate version defines target: implement WRITE_SAME with UNMAP bit using ->execute_unmap target: simplify UNMAP handling target: replace se_cmd->execute_rw with a protocol_data field target/user: Fix inconsistent kmap_atomic/kunmap_atomic target: Send UA when changing LUN inventory target: Send UA upon LUN RESET tmr completion target: Send UA on ALUA target port group change target: Convert se_lun->lun_deve_lock to normal spinlock target: use 'se_dev_entry' when allocating UAs target: Remove 'ua_nacl' pointer from se_ua structure target_core_alua: Correct UA handling when switching states xen-scsiback: Fix compile warning for 64-bit LUN target: Remove TARGET_MAX_LUNS_PER_TRANSPORT target: use 64-bit LUNs target: Drop duplicate + unused se_dev_check_wce target: Drop unnecessary core_tpg_register TFO parameter ...
2015-07-04Merge tag 'ntb-4.2' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB updates from Jon Mason: "This includes a pretty significant reworking of the NTB core code, but has already produced some significant performance improvements. An abstraction layer was added to allow the hardware and clients to be easily added. This required rewriting the NTB transport layer for this abstraction layer. This modification will allow future "high performance" NTB clients. In addition to this change, a number of performance modifications were added. These changes include NUMA enablement, using CPU memcpy instead of asyncdma, and modification of NTB layer MTU size" * tag 'ntb-4.2' of git://github.com/jonmason/ntb: (22 commits) NTB: Add split BAR output for debugfs stats NTB: Change WARN_ON_ONCE to pr_warn_once on unsafe NTB: Print driver name and version in module init NTB: Increase transport MTU to 64k from 16k NTB: Rename Intel code names to platform names NTB: Default to CPU memcpy for performance NTB: Improve performance with write combining NTB: Use NUMA memory in Intel driver NTB: Use NUMA memory and DMA chan in transport NTB: Rate limit ntb_qp_link_work NTB: Add tool test client NTB: Add ping pong test client NTB: Add parameters for Intel SNB B2B addresses NTB: Reset transport QP link stats on down NTB: Do not advance transport RX on link down NTB: Differentiate transport link down messages NTB: Check the device ID to set errata flags NTB: Enable link for Intel root port mode in probe NTB: Read peer info from local SPAD in transport NTB: Split ntb_hw_intel and ntb_transport drivers ...
2015-07-04Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "Except for the preempt notifiers fix, these are all small bugfixes that could have been waited for -rc2. Sending them now since I was taking care of Peter's patch anyway" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: add hyper-v crash msrs values KVM: x86: remove data variable from kvm_get_msr_common KVM: s390: virtio-ccw: don't overwrite config space values KVM: x86: keep track of LVT0 changes under APICv KVM: x86: properly restore LVT0 KVM: x86: make vapics_in_nmi_mode atomic sched, preempt_notifier: separate notifier registration from static_key inc/dec
2015-07-04NTB: Add split BAR output for debugfs statsDave Jiang
When split BAR is enabled, the driver needs to dump out the split BAR registers rather than the original 64bit BAR registers. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Change WARN_ON_ONCE to pr_warn_once on unsafeDave Jiang
The unsafe doorbell and scratchpad access should display reason when WARN is called. Otherwise we get a stack dump without any explanation. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Print driver name and version in module initDave Jiang
Printouts driver name and version to indicate what is being loaded. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Increase transport MTU to 64k from 16kDave Jiang
Benchmarking showed a significant performance increase with the MTU size to 64k instead of 16k. Change the driver default to 64k. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Rename Intel code names to platform namesDave Jiang
Instead of using the platform code names, use the correct platform names to identify the respective Intel NTB hardware. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Default to CPU memcpy for performanceDave Jiang
Disable DMA usage by default, since the CPU provides much better performance with write combining. Provide a module parameter to enable DMA usage when offloading the memcpy is preferred. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Improve performance with write combiningDave Jiang
Changing the memory window BAR mappings to write combining significantly boosts the performance. We will also use memcpy that uses non-temporal store, which showed performance improvement when doing non-cached memcpys. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Use NUMA memory in Intel driverAllen Hubbe
Allocate memory for the NUMA node of the NTB device. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Use NUMA memory and DMA chan in transportAllen Hubbe
Allocate memory and request the DMA channel for the same NUMA node as the NTB device. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Rate limit ntb_qp_link_workAllen Hubbe
When the ntb transport is connecting and waiting for the peer, the debug console receives lots of debug level messages about the remote qp link status being down. Rate limit those messages. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Add tool test clientAllen Hubbe
This is a simple debugging driver that enables the doorbell and scratch pad registers to be read and written from the debugfs. This tool enables more complicated debugging to be scripted from user space. This driver may be used to test that your ntb hardware and drivers are functioning at a basic level. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Add ping pong test clientAllen Hubbe
This is a simple ping pong driver that exercises the scratch pads and doorbells of the ntb hardware. This driver may be used to test that your ntb hardware and drivers are functioning at a basic level. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Add parameters for Intel SNB B2B addressesAllen Hubbe
Add module parameters for the addresses to be used in B2B topology. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Reset transport QP link stats on downAllen Hubbe
Reset the link stats when the link goes down. In particular, the TX and RX index and count must be reset, or else the TX side will be sending packets to the RX side where the RX side is not expecting them. Reset all the stats, to be consistent. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Do not advance transport RX on link downAllen Hubbe
On link down, don't advance RX index to the next entry. The next entry should never be valid after receiving the link down flag. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Differentiate transport link down messagesAllen Hubbe
The same message "qp %d: Link Down\n" was printed at two locations in ntb_transport. Change the messages so they are distinct. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Check the device ID to set errata flagsDave Jiang
Set errata flags for the specific device IDs to which they apply, instead of the whole Xeon hardware class. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Enable link for Intel root port mode in probeDave Jiang
Link training should be enabled in the driver probe for root port mode. We should not have to wait for transport to be loaded for this to happen. Otherwise the ntb device will not show up on the transparent bridge side of the link. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Read peer info from local SPAD in transportDave Jiang
The transport was writing and then reading the peer scratch pad, essentially reading what it just wrote instead of exchanging any information with the peer. The transport expects the peer values to be the same as the local values, so this issue was not obvious. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Split ntb_hw_intel and ntb_transport driversAllen Hubbe
Change ntb_hw_intel to use the new NTB hardware abstraction layer. Split ntb_transport into its own driver. Change it to use the new NTB hardware abstraction layer. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04NTB: Add NTB hardware abstraction layerAllen Hubbe
Abstract the NTB device behind a programming interface, so that it can support different hardware and client drivers. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq update from Thomas Gleixner: "The last update for 4.2 is just moving a macro from a local header to the global one, so it can be used in architecture code as well. Cleanup of the now empty local header is 4.3 material" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: Move IRQCHIP_DECLARE macro to include/linux/irqchip.h
2015-07-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull second round of input updates from Dmitry Torokhov: "A new driver for Weida wdt87xx touch controllers, and a bunch of fixups for other drivers" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: wdt87xx_i2c - add a scaling factor for TOUCH_MAJOR event Input: wdt87xx_i2c - remove stray newline in diagnostic message Input: arc_ps2 - add HAS_IOMEM dependency Input: wdt87xx_i2c - fix format warning Input: improve parsing OF parameters for touchscreens Input: edt-ft5x06 - mark as direct input device Input: use for_each_set_bit() where appropriate Input: add a driver for wdt87xx touchscreen controller Input: axp20x-pek - fix reporting button state as inverted Input: xpad - re-send LED command on present event Input: xpad - set the LEDs properly on XBox Wireless controllers Input: imx_keypad - check for clk_prepare_enable() error
2015-07-03Merge branch 'next' into for-linusDmitry Torokhov
Prepare second round of input updates for 4.2 merge window.
2015-07-03Merge tag 'topic/drm-fixes-2015-07-04' of ↵Linus Torvalds
git://anongit.freedesktop.org/drm-intel Pull drm EDID fix from Daniel Vetter: "Since Dave is enjoying vacation I figured I'll send you this drm core fix directly" * tag 'topic/drm-fixes-2015-07-04' of git://anongit.freedesktop.org/drm-intel: drm/crtc: Fix edid length computation
2015-07-03Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio/vhost cross endian support from Michael Tsirkin: "I have just queued some more bugfix patches today but none fix regressions and none are related to these ones, so it looks like a good time for a merge for -rc1. The motivation for this is support for legacy BE guests on the new LE hosts. There are two redeeming properties that made me merge this: - It's a trivial amount of code: since we wrap host/guest accesses anyway, almost all of it is well hidden from drivers. - Sane platforms would never set flags like VHOST_CROSS_ENDIAN_LEGACY, and when it's clear, there's zero overhead (as some point it was tested by compiling with and without the patches, got the same stripped binary). Maybe we could create a Kconfig symbol to enforce the second point: prevent people from enabling it eg on x86. I will look into this" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio-pci: alloc only resources actually used. macvtap/tun: cross-endian support for little-endian hosts vhost: cross-endian support for legacy devices virtio: add explicit big-endian support to memory accessors vhost: introduce vhost_is_little_endian() helper vringh: introduce vringh_is_little_endian() helper macvtap: introduce macvtap_is_little_endian() helper tun: add tun_is_little_endian() helper virtio: introduce virtio_is_little_endian() helper
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