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path: root/drivers/scsi/ipr.c
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2005-12-13[SCSI] ipr: Driver initialization fix for kexec/kdumpbrking@us.ibm.com
When kexec booting a kernel when the previous kernel did not call ipr's shutdown method, the ipr adapter does not get properly initialized, which can result in the ipr adapter completing commands issued by the previous kernel. Fix ipr to detect this scenario by reading the adapter's interrupt mask register and the microprocessor interrupt register. If the interrupt mask register indicates that interrupts are enabled or the reset alert bit is set when the card is probed, this means the card is in an unknown state and we hard reset the card. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Better handle failure of adapter bringup commandsbrking@us.ibm.com
Some new ipr adapters do not support some of the initialization commands currently sent to it from the driver. Handle these commands failing and continue on with the adapter initialization. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: New PCI Idsbrking@us.ibm.com
Adds support for some new ipr adapters Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Support device reset to RAID disksbrking@us.ibm.com
Support now exists in some ipr adapters to issue a device reset to an Advanced Function disk. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Support new device queueing modelbrking@us.ibm.com
New ipr adapters support a new device queueing model in the adapter firmware. The queueing model is the NACA queueing model, but it does not mean use of NACA is required. The new model removes some of the adapter firmware queue state that made handling QERR=0 almost impossible. The queueing model on older adapters included the concept of a queue frozen state, which would freeze the response queue in the adapter when a check condition occurred, requiring a a primitive to resume the queue. The new queueing model removes this complexity. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: New adapter error typesbrking@us.ibm.com
Handle some new types of ipr errors that can be returned by the adapter. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Module parm to disable RAID 0 auto createbrking@us.ibm.com
Some ipr adapters will automatically create single device RAID 0 arrays for all unconfigured RAID capable devices found at adapter initialization time. This patch adds a module parameter to disable this behavior. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Runtime resetbrking@us.ibm.com
Some IPR RAID adapter will automatically create single device RAID arrays for all attached devices when the card is initialized. Setting the RUNTIME_RESET doorbell bit will prevent this from occurring, since we only want this behavior the first time the card is initialized and not each time the card happens to get reset. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: handle new adapter errorsbrking@us.ibm.com
Add support for handling some new errors that may be returned by ipr adapters. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Provide reset_adapter retry method for offlined adaptersbrking@us.ibm.com
If an ipr adapter repeatedly fails its initialization the ipr driver will take the adapter offline and never talk to it again. This provides a method for the user to manually try the initialization again through sysfs. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Runtime debugging optionsbrking@us.ibm.com
Make some compile time debugging options runtime module options. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Fix adapter microcode update DMA mapping leakbrking@us.ibm.com
If the write buffer command that is issued to the ipr adapter to update its microcode fails for some reason, the DMA buffer will never get unmapped. Move the pci_map/unmap out of the IOA reset job so that the buffer is always clearly mapped and unmapped. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Convert to use kzallocbrking@us.ibm.com
Convert appropriate kmalloc/memset calls to use kzalloc. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Write caching state host attributebrking@us.ibm.com
Adds a scsi_host sysfs attribute and module parm to enable/disable the write cache on an ipr adapter. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: slave_alloc optimizationbrking@us.ibm.com
Optimize ipr's slave_alloc to return -ENXIO for devices that do not exist. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Prevent upper layer driver bindingbrking@us.ibm.com
Set the no_uld_attach for devices ipr does not want upper layer drivers to attach to. These devices are only reported for RAID management and only sg should be used to talk to them. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Include all disks in supported listbrking@us.ibm.com
Fix ipr to include all disks in the supported device list, not just disks formatted to advanced function format. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Error logging cleanupbrking@us.ibm.com
Simplify error logging path, sanitize error length returned by the adapter. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Handle unknown errorsbrking@us.ibm.com
Better handle errors received which are not known to the device driver. Just dump the hex data so that we have a hope of figuring out what went wrong. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Generic adapter error cleaupbrking@us.ibm.com
The generic ipr adapter error log currently logs 2 lines of useless data. Delete these lines. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Physical resource error logging macrobrking@us.ibm.com
Adds a macro in the ipr driver for logging a physical device location. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Cleanup error structuresbrking@us.ibm.com
Simplify the ipr error structures a bit by removing some duplication. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06[SCSI] ipr: Disk array rescanning fixbrking@us.ibm.com
IPR RAID arrays show up on a virtual scsi bus, with a scsi bus number of 255, which is generated by the adapter microcode. For the initial scan of the host, we manually scan this bus since it does not obey SAM in regards to sparse LUNs and the disk array devices do not have a consistent product id to use scsi core's blacklist. If /proc/scsi/scsi or sysfs is used to delete one of these devices, the device will not be able to get added back by rescanning the host since scsi core will see ipr's max_channel as 4, rather than 255. Update max_channel after the initial scan so that ipr raid arrays can get re-added if they get deleted. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28[PATCH] PCI: ipr: Block config access during BISTBrian King
IPR scsi adapter have an exposure today in that they issue BIST to the adapter to reset the card. If, during the time it takes to complete BIST, userspace attempts to access PCI config space, the host bus bridge will master abort the access since the ipr adapter does not respond on the PCI bus for a brief period of time when running BIST. On PPC64 hardware, this master abort results in the host PCI bridge isolating that PCI device from the rest of the system, making the device unusable until Linux is rebooted. This patch makes use of some newly added PCI layer APIs that allow for protection from userspace accessing config space of a device in scenarios such as this. Signed-off-by: Brian King <brking@us.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/scsi/ipr.c | 2 ++ 1 file changed, 2 insertions(+)
2005-06-27[PATCH] PCI: make drivers use the pci shutdown callback instead of the ↵Greg Kroah-Hartman
driver core callback. Now we can change the pci core to always set this pointer, as pci drivers should use it, not the driver core callback. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20[PATCH] Driver Core: drivers/s390/net/qeth_sys.c - ↵Yani Ioannou
drivers/usb/gadget/pxa2xx_udc.c: update device attribute callbacks Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-17[SCSI] allow sleeping in ->eh_host_reset_handler()Jeff Garzik
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17[SCSI] allow sleeping in ->eh_device_reset_handler()Jeff Garzik
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17[SCSI] allow sleeping in ->eh_abort_handler()Jeff Garzik
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20[SCSI] ipr: Fix ipr PCI hotplug hang with CDROM attachbrking@us.ibm.com
Currently, during PCI hotplug remove, if the upper layer drivers of the attached devices send commands down as part of the remove action, like a CDROM, the hotplug action will hang forever due to the ipr driver returning SCSI_MLQUEUE_HOST_BUSY. Patch fixes this. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20[SCSI] ipr: Array error logging fixbrking@us.ibm.com
Bugme 4547. The following patch fixes a bug in ipr's error logging. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!