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* xen/arm64: Don't compile cpu hotplugJulien Grall2013-07-291-1/+1
| | | | | | | | | On ARM64, when CONFIG_XEN=y, the compilation will fail because CPU hotplug is not yet supported with XEN. For now, disable it. Signed-off-by: Julien Grall <julien.grall@linaro.org> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Mark Rutland <mark.rutland@arm.com>
* xenbus: frontend resume cleanupAurelien Chartier2013-07-291-3/+16
| | | | | | | | | | | Only create the delayed resume workqueue if we are running in the same domain as xenstored and issue a warning if the workqueue creation fails. Move the work initialization to the device probe so it is done only once. Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: David Vrabel <david.vrabel@citrix.com>
* xen: Convert printks to pr_<level>Joe Perches2013-06-2833-194/+213
| | | | | | | | | | | | | | | | | Convert printks to pr_<level> (excludes printk(KERN_DEBUG...) to be more consistent throughout the xen subsystem. Add pr_fmt with KBUILD_MODNAME or "xen:" KBUILD_MODNAME Coalesce formats and add missing word spaces Add missing newlines Align arguments and reflow to 80 columns Remove DRV_NAME from formats as pr_fmt adds the same content This does change some of the prefixes of these messages but it also does make them more consistent. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: ifdef CONFIG_HIBERNATE_CALLBACKS xen_*_suspendStefano Stabellini2013-06-281-1/+1
| | | | | | | | | | | | | | | | xen_hvm_post_suspend, xen_pre_suspend, xen_post_suspend are only used if CONFIG_HIBERNATE_CALLBACKS is defined, resulting in: drivers/xen/manage.c:46:13: warning: ‘xen_hvm_post_suspend’ defined but not used [-Wunused-function] drivers/xen/manage.c:52:13: warning: ‘xen_pre_suspend’ defined but not used [-Wunused-function] drivers/xen/manage.c:59:13: warning: ‘xen_post_suspend’ defined but not used [-Wunused-function] If the kernel config is missing CONFIG_HIBERNATE_CALLBACKS. Simply ifdef CONFIG_HIBERNATE_CALLBACKS the three functions. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/pcifront: Deal with toolstack missing 'XenbusStateClosing' state.Konrad Rzeszutek Wilk2013-06-141-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two tool-stack that can instruct the Xen PCI frontend and backend to change states: 'xm' (Python code with a daemon), and 'xl' (C library - does not keep state changes). With the 'xm', the path to disconnect a single PCI device (xm pci-detach <guest> <BDF>) is: 4(Connected)->7(Reconfiguring*)-> 8(Reconfigured)-> 4(Connected)->5(Closing*). The * is for states that the tool-stack sets. For 'xl', it is similar: 4(Connected)->7(Reconfiguring*)-> 8(Reconfigured)-> 4(Connected) Both of them also tear down the XenBus structure, so the backend state ends up going in the 3(Initialised) and calls pcifront_xenbus_remove. When a PCI device is plugged back in (xm pci-attach <guest> <BDF>) both of them follow the same pattern: 2(InitWait*), 3(Initialized*), 4(Connected*)->4(Connected). [xen-pcifront ignores the 2,3 state changes and only acts when 4 (Connected) has been reached] Note that this is for a _single_ PCI device. If there were two PCI devices and only one was disconnected 'xm' would show the same state changes. The problem is that git commit 3d925320e9e2de162bd138bf97816bda8c3f71be ("xen/pcifront: Use Xen-SWIOTLB when initting if required") introduced a mechanism to initialize the SWIOTLB when the Xen PCI front moves to Connected state. It also had some aggressive seatbelt code check that would warn the user if one tried to change to Connected state without hitting first the Closing state: pcifront pci-0: PCI frontend already installed! However, that code can be relaxed and we can continue on working even if the frontend is instructed to be the 'Connected' state with no devices and then gets tickled to be in 'Connected' state again. In other words, this 4(Connected)->5(Closing)->4(Connected) state was expected, while 4(Connected)->.... anything but 5(Closing)->4(Connected) was not. This patch removes that aggressive check and allows Xen pcifront to work with the 'xl' toolstack (for one or more PCI devices) and with 'xm' toolstack (for more than two PCI devices). Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: linux-pci@vger.kernel.org Cc: stable@vger.kernel.org [v2: Added in the description about two PCI devices] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen-pciback: fix error return code in pcistub_irq_handler_switch()Wei Yongjun2013-06-101-3/+7
| | | | | | | | | | Fix to return -ENOENT in the pcistub_device_find() and pci_get_drvdata() error handling case instead of 0(overwrite to 0 by str_to_slot()), as done elsewhere in this function. Acked-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xenbus_client.c: correct exit path for xenbus_map_ring_valloc_hvmWei Liu2013-05-291-2/+3
| | | | | | | | | Apparently we should not free page that has not been allocated. This is b/c alloc_xenballooned_pages will take care of freeing the page on its own. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen-pciback: more uses of cached MSI-X capability offsetJan Beulich2013-05-291-2/+2
| | | | | Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xenbus: save xenstore local status for later useAurelien Chartier2013-05-293-15/+20
| | | | | | | | | | | Save the xenstore local status computed in xenbus_init. It can then be used later to check if xenstored is running in this domain. Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com> [Changes in v4: - Change variable name to xen_store_domain_type] Reviewed-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xenbus: delay xenbus frontend resume if xenstored is not runningAurelien Chartier2013-05-291-1/+36
| | | | | | | | | | | | | | | | | | | | If the xenbus frontend is located in a domain running xenstored, the device resume is hanging because it is happening before the process resume. This patch adds extra logic to the resume code to check if we are the domain running xenstored and delay the resume if needed. Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com> [Changes in v2: - Instead of bypassing the resume, process it in a workqueue] [Changes in v3: - Add a struct work in xenbus_device to avoid dynamic allocation - Several small code fixes] [Changes in v4: - Use a dedicated workqueue] [Changes in v5: - Move create_workqueue error handling to xenbus_frontend_dev_resume] Acked-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xmem/tmem: fix 'undefined variable' build error.Frederico Cadete2013-05-281-0/+2
| | | | | | | | | | | | In the (not so useful) kernel configuration where CONFIG_SWAP is undefined and CONFIG_XEN_SELFBALLOONING is defined, xen_tmem_init would use undefined variable 'static bool frontswap'. Added #else to have #define frontswap (0) in the case where CONFIG_FRONTSWAP is not defined. Signed-off-by: Frederico Cadete <frederico@cadete.eu> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: Fixed assignment error in if statementLisa Nguyen2013-05-201-1/+2
| | | | | | | Fixed assignment error in if statement in balloon.c Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/xenbus: Fixed over 80 character limit issueLisa Nguyen2013-05-201-1/+2
| | | | | | | | | Fixed the format length of the xenbus_backend_ioctl() function to meet the 80 character limit in xenbus_dev_backend.c Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/xenbus: Fixed indentation error in switch caseLisa Nguyen2013-05-201-10/+8
| | | | | | | | Fixed the indentation error in the switch case in xenbus_dev_backend.c Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.Konrad Rzeszutek Wilk2013-05-152-9/+14
| | | | | | | | | | There is no point. We would just squeeze the guest to put more and more pages in the swap disk without any purpose. The only time it makes sense to use the selfballooning and shrinking is when frontswap is being utilized. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Remove the usage of '[no|]selfballoon' and use ↵Konrad Rzeszutek Wilk2013-05-152-26/+4
| | | | | | | | | | 'tmem.selfballooning' bool instead. As the 'tmem' driver is the one that actually sets whether it will use it (or not) so might as well make tmem responsible for this knob. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool ↵Konrad Rzeszutek Wilk2013-05-152-14/+3
| | | | | | | | | | instead. As the 'tmem' driver is the one that actually sets whether it will use it or not so might as well make tmem responsible for this knob. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Remove the boot options and fold them in the tmem.X parameters.Konrad Rzeszutek Wilk2013-05-151-24/+4
| | | | | | | | | | | | | | | | | | If tmem is built-in or a module, the user has the option on the command line to influence it by doing: tmem.<some option> instead of having a variety of "nocleancache", and "nofrontswap". The others: "noselfballooning" and "selfballooning"; and "noselfshrink" are in a different driver xen-selfballoon.c and the patches: xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool instead. xen/tmem: Remove the usage of 'noselfballoon','selfballoon' and use 'tmem.selfballon' bool instead. remove them. Also add documentation. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: s/disable_// and change the logic.Konrad Rzeszutek Wilk2013-05-151-14/+13
| | | | | | | | | The variety of disable_[cleancache|frontswap|selfshrinking] are making this a bit complex. Just remove the "disable_" part and change the logic around for the "nofrontswap" and "nocleancache" parameters. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Fix compile warning.Konrad Rzeszutek Wilk2013-05-151-4/+2
| | | | | | | | | | | | We keep on getting: drivers/xen/tmem.c:65:13: warning: ‘disable_frontswap_selfshrinking’ defined but not used [-Wunused-variable] if CONFIG_FRONTSWAP=y and # CONFIG_CLEANCACHE is not set Found by 0 day test project Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Split out the different module/boot options.Konrad Rzeszutek Wilk2013-05-151-3/+8
| | | | | | | | | There are three options - depending on what combination of CONFIG_FRONTSWAP, CONFIG_CLEANCACHE and CONFIG_XEN_SELFBALLOONING is used. Lets split them out nicely out in three groups to make it easier to clean up. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Move all of the boot and module parameters to the top of the file.Konrad Rzeszutek Wilk2013-05-151-40/+45
| | | | | | Just code movement to see the different boot or module parameters. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/tmem: Cleanup. Remove the parts that say temporary.Konrad Rzeszutek Wilk2013-05-151-4/+0
| | | | | | Frontswap is upstream, no need to having this #ifdef. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Merge tag 'v3.10-rc1' into stable/for-linus-3.10Konrad Rzeszutek Wilk2013-05-154799-206188/+364361
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 3.10-rc1 * tag 'v3.10-rc1': (12273 commits) Linux 3.10-rc1 [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd dm cache: set config value dm cache: move config fns dm thin: generate event when metadata threshold passed ...
| * Merge tag 'stable/for-linus-3.10-rc0-tag-two' of ↵Linus Torvalds2013-05-122-2/+3
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen bug-fixes from Konrad Rzeszutek Wilk: - More fixes in the vCPU PVHVM hotplug path. - Add more documentation. - Fix various ARM related issues in the Xen generic drivers. - Updates in the xen-pciback driver per Bjorn's updates. - Mask the x2APIC feature for PV guests. * tag 'stable/for-linus-3.10-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pci: Used cached MSI-X capability offset xen/pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST xen: mask x2APIC feature in PV xen: SWIOTLB is only used on x86 xen/spinlock: Fix check from greater than to be also be greater or equal to. xen/smp/pvhvm: Don't point per_cpu(xen_vpcu, 33 and larger) to shared_info xen/vcpu: Document the xen_vcpu_info and xen_vcpu xen/vcpu/pvhvm: Fix vcpu hotplugging hanging.
| * \ Merge tag 'scsi-for-linus' of ↵Linus Torvalds2013-05-1293-1448/+10533
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull second SCSI update from James "Jaj B" Bottomley: "This is the final round of SCSI patches for the merge window. It consists mostly of driver updates (bnx2fc, ibmfc, fnic, lpfc, be2iscsi, pm80xx, qla4x and ipr). There's also the power management updates that complete the patches in Jens' tree, an iscsi refcounting problem fix from the last pull, some dif handling in scsi_debug fixes, a few nice code cleanups and an error handling busy bug fix." * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (92 commits) [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd [SCSI] sd: change to auto suspend mode [SCSI] sd: use REQ_PM in sd's runtime suspend operation [SCSI] qla4xxx: Fix iocb_cnt calculation in qla4xxx_send_mbox_iocb() [SCSI] ufs: Correct the expected data transfersize ...
| | * \ Merge branch 'postmerge' into for-linusJames Bottomley2013-05-103-34/+81
| | |\ \ | | | | | | | | | | | | | | | Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | [SCSI] sd: change to auto suspend modeLin Ming2013-05-062-25/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Uses block layer runtime pm helper functions in scsi_runtime_suspend/resume for devices that take advantage of it. Remove scsi_autopm_* from sd open/release path and check_events path. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | [SCSI] sd: use REQ_PM in sd's runtime suspend operationLin Ming2013-05-062-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the introduction of REQ_PM, modify sd's runtime suspend operation functions to use that flag so that the operations to put the device into runtime suspended state(i.e. sync cache and stop device) will not affect its runtime PM status. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | * | | Merge branch 'misc' into for-linusJames Bottomley2013-05-1091-1414/+10452
| | |\ \ \ | | | | | | | | | | | | | | | | | | Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] qla2xxx: Update firmware link in Kconfig file.Chad Dupuis2013-05-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are usedMike Christie2013-05-102-49/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a bug where the iscsi class/driver did not do a put_device when a sess/conn device was found. This also simplifies the interface by not having to pass in some arguments that were duplicated and did not need to be exported. Reported-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] sas: unify the pointlessly separated enums sas_dev_type and ↵James Bottomley2013-05-1020-144/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sas_device_type These enums have been separate since the dawn of SAS, mainly because the latter is a procotol only enum and the former includes additional state for libsas. The dichotomy causes endless confusion about which one you should use where and leads to pointless warnings like this: drivers/scsi/mvsas/mv_sas.c: In function 'mvs_update_phyinfo': drivers/scsi/mvsas/mv_sas.c:1162:34: warning: comparison between 'enum sas_device_type' and 'enum sas_dev_type' [-Wenum-compare] Fix by eliminating one of them. The one kept is effectively the sas.h one, but call it sas_device_type and make sure the enums are all properly namespaced with the SAS_ prefix. Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: thermal, sas controller config and error handling updateSakthivel K2013-05-106-17/+249
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modified thermal configuration to happen after interrupt registration Added SAS controller configuration during initialization Added error handling logic to handle I_T_Nexus errors and variants [jejb: fix up tabs and spaces issues] Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: NCQ error handling changesSakthivel K2013-05-105-28/+544
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Handled NCQ errors in the low level driver as the FW is not providing the faulty tag for NCQ errors for libsas to recover. [jejb: fix checkpatch issues] Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllersSakthivel K2013-05-101-7/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Individual WWN read operations based on controller. PM8081 - Read WWN from Flash VPD. PM8088/89 - Read WWN from EEPROM. PM8001 - Read WWN from NVM. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: Changed module name and debug messages updateSakthivel K2013-05-103-13/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changed name in driver to pm80xx. Updated debug messages. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory ↵Sakthivel K2013-05-104-27/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | region for it Performing pci_free_consistent in tasklet had result in a core dump. So allocated a new memory region for it. Fix for passing proper address and operation in firmware flash update. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 aloneSakthivel K2013-05-102-3/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Additional bar shift for new SPC firmware, applicable to device id 0x8081 only. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant ↵Sakthivel K2013-05-108-18/+5287
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | changes in common files Implementation of SPCv/ve specific hardware functionality and macros. Changing common functionalities wrt SPCv/ve operations. Conditional checks for SPC specific operations. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: MSI-X implementation for using 64 interruptsSakthivel K2013-05-102-30/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implementation of interrupt handlers and tasklets to support upto 64 interrupt for the device. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: Updated common functions common for SPC and SPCv/veSakthivel K2013-05-103-105/+168
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update of function prototype for common function to SPC and SPCv/ve. Multiple queues implementation for IO. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: Multiple inbound/outbound queue configurationSakthivel K2013-05-103-60/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Memory allocation and configuration of multiple inbound and outbound queues. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPCSakthivel K2013-05-105-121/+320
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Updated pci id table with device, vendor, subdevice and subvendor ids for 8081, 8088, 8089 SAS/SATA controllers. Added SPCv/ve related macros. Updated macros, hba info structure and other structures for SPCv/ve. Update of structure and variable names for SPC hardware functionalities. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] lpfc: fix up Kconfig dependenciesJames Bottomley2013-05-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lpfc uses the generic checksum as well as the T10DIF one from the lib/ directory, so make sure they're selected. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmndHannes Reinecke2013-05-101-10/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | scsi_send_eh_cmnd() is calling queuecommand() directly, so it needs to check the return value here. The only valid return codes for queuecommand() are 'busy' states, so we need to wait for a bit to allow the LLDD to recover. Based on an earlier patch from Wen Xiong. [jejb: fix confusion between msec and jiffies values and other issues] [bvanassche: correct stall_for interval] Cc: Wen Xiong <wenxiong@linux.vnet.ibm.com> Cc: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] qla4xxx: Fix iocb_cnt calculation in qla4xxx_send_mbox_iocb()Vikas Chaudhary2013-05-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increment 'ha->iocb_cnt' before adding mbox_iocb to iocb queue. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] ufs: Correct the expected data transfersizeVinayak Holikatti2013-05-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects the expected data transfer size of the command UPIU. The current implementation of cmd->transfersize is wrong as it probably equal to sector size. With this implementation the transfer size is updated correctly Reported-by: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Tested-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com> Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] ufs: Add Platform glue driver for ufshcdVinayak Holikatti2013-05-033-0/+229
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds Platform glue driver for ufshcd. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Reviewed-by: Sujit Reddy Thumma <sthumma@codeaurora.org> Tested-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com> Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | | * | | [SCSI] sd: fix array cache flushing bug causing performance problemsJames Bottomley2013-05-032-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some arrays synchronize their full non volatile cache when the sd driver sends a SYNCHRONIZE CACHE command. Unfortunately, they can have Terrabytes of this and we send a SYNCHRONIZE CACHE for every barrier if an array reports it has a writeback cache. This leads to massive slowdowns on journalled filesystems. The fix is to allow userspace to turn off the writeback cache setting as a temporary measure (i.e. without doing the MODE SELECT to write it back to the device), so even though the device reported it has a writeback cache, the user, knowing that the cache is non volatile and all they care about is filesystem correctness, can turn that bit off in the kernel and avoid the performance ruinous (and safety irrelevant) SYNCHRONIZE CACHE commands. The way you do this is add a 'temporary' prefix when performing the usual cache setting operations, so echo temporary write through > /sys/class/scsi_disk/<disk>/cache_type Reported-by: Ric Wheeler <rwheeler@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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