- 26 Aug, 2013 12 commits
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Tomas Henzl authored
Signed-off-by:
Tomas Henzl <thenzl@redhat.com> Acked-by:
Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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Tomas Henzl authored
When the driver calls scsi_done and after that frees it's internal preallocated memory it can happen that a new job is enqueud before the memory is freed. The allocation fails and the message "cmd_alloc returned NULL" is shown. Patch below fixes it by moving cmd->scsi_done after cmd_free. Signed-off-by:
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Xinghai Yu authored
It seems the "phy_index++;" have been placed in wrong place, without it the while circle up will do a infinite loop. Signed-off-by:
Xinghai Yu <yuxinghai@cn.fujitsu.com> Acked-by:
Lukasz Dorau <lukasz.dorau@intel.com> Signed-off-by:
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Wolfram Sang authored
devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by:
Wolfram Sang <wsa@the-dreams.de> Signed-off-by:
Santosh Y <santoshsy@gmail.com> Signed-off-by:
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Wei Yongjun authored
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
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Akinobu Mita authored
scsi_remove_host() sends SYNCHRONIZE CACHE commands for write cache enabled scsi disk devices. So stopping controller working shouldn't be done before scsi_remove_host(). Signed-off-by:
Akinobu Mita <mita@fixstars.com> Signed-off-by:
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Akinobu Mita authored
When removing the UFS driver, disable_irq() is called and the IRQ is not enabled again. Unfortunately, the IRQ is requested with IRQF_SHARED and it can be shared among several devices. So disabling the IRQ in this way is just breaking other devices which are sharing the IRQ. Signed-off-by:
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Akinobu Mita authored
Before commit 2953f850 ("[SCSI] ufs: use devres functions for ufshcd"), UFSHCI register was ioremapped by each glue-driver (ufshcd-pltfrm and ufshcd-pci) during probing and it was iounmapped by core-driver during removing driver. The commit converted ufshcd-pltfrm to use devres functions, but it didn't convert ufshcd-pci. Therefore, the change causes ufshcd-pci driver not to iounmap UFSHCI register region during removing driver. This fixes it by converting ufshcd-pci to use devres functions. Signed-off-by:
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Sujit Reddy Thumma authored
Add runtime PM helpers to suspend/resume UFS controller at runtime. Enable runtime PM by default for pci and platform drivers as the initialized hardware can suspend if it is not used after bootup. Signed-off-by:
Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by:
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Sujit Reddy Thumma authored
Background operations in the UFS device can be disabled by the host to reduce the response latency of transfer requests. Add support for enabling/disabling the background operations during runtime suspend/resume of the device. If the device is in critical need of BKOPS it will raise an URGENT_BKOPS exception which should be handled by the host to make sure the device performs as expected. During bootup, the BKOPS is enabled in the device by default. The disable of BKOPS is supported only when the driver supports runtime suspend/resume operations as the runtime PM framework provides a way to determine the device idleness and hence BKOPS can be managed effectively. During runtime resume the BKOPS is disabled to reduce latency and during runtime suspend the BKOPS is enabled to allow device to carry out idle time BKOPS. In some cases where the BKOPS is disabled during runtime resume and due to continuous data transfers the runtime suspend is not triggered, the BKOPS is enabled when the device raises a level-2 exception (outstanding operations - performance impact). Signed-off-by:
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Dolev Raviv authored
Allow UFS device to complete its initialization and accept SCSI commands by setting fDeviceInit flag. The device may take time for this operation and hence the host should poll until fDeviceInit flag is toggled to zero. This step is mandated by UFS device specification for device initialization completion. Signed-off-by:
Dolev Raviv <draviv@codeaurora.org> Signed-off-by:
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Sujit Reddy Thumma authored
As part of device initialization sequence, sending NOP OUT UPIU and waiting for NOP IN UPIU response is mandatory. This confirms that the device UFS Transport (UTP) layer is functional and the host can configure the device with further commands. Add support for sending NOP OUT UPIU to check the device connection path and test whether the UTP layer on the device side is functional during initialization. A tag is acquired from the SCSI tag map space in order to send the device management command. When the tag is acquired by internal command the scsi command is rejected with host busy flag in order to requeue the request. To avoid frequent collisions between internal commands and scsi commands the device management command tag is allocated in the opposite direction w.r.t block layer tag allocation. Signed-off-by:
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- 23 Aug, 2013 28 commits
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Adheer Chandravanshi authored
Signed-off-by:
Adheer Chandravanshi <adheer.chandravanshi@qlogic.com> Signed-off-by:
Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
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Adheer Chandravanshi authored
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Saurav Kashyap authored
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Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by:
Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by:
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Adheer Chandravanshi authored
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Adheer Chandravanshi authored
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Adheer Chandravanshi authored
Flash target index 0 and 1 are reserved for boot target entries created with BIOS utility. Signed-off-by:
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Adheer Chandravanshi authored
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Adheer Chandravanshi authored
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Adheer Chandravanshi authored
While setting the values for DDB, discovery_parent_idx needs to be used instead of discovery_parent_type. Signed-off-by:
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Adheer Chandravanshi authored
If logout is performed on a failed session entry then that session should be gracefully removed. Signed-off-by:
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James Smart authored
Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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Vikas Chaudhary authored
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Adheer Chandravanshi authored
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Adheer Chandravanshi authored
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Adheer Chandravanshi authored
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Eddie Wai authored
Signed-off-by:
Eddie Wai <eddie.wai@broadcom.com> Signed-off-by:
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