- 16 8月, 2008 2 次提交
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由 Brian King 提交于
If an ELS is received while the virtual fibre channel adapter is going through its discovery, a flag is set which causes discovery to get re-driven. However, the hosts's state does not get set back to IBMVFC_INITIALIZING and scsi_block_requests does not get called again, which can result in queuecommand ops getting sent during discovery. This should not occur and may cause problems. One example is that we may no longer be logged into the target we send the command to, resulting in a failure which should not have occurred. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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由 Brian King 提交于
This fixes a hang on module removal. The module removal code was setting the hosts's state to IBMVFC_HOST_OFFLINE before tearing down the kernel thread, but, due to a bug in ibmvfc_wait_while_resetting, was not waiting for the kernel thread's offlining work to be done prior to destroying the kernel thread, which left the scsi host in a blocked state which we never got out of. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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- 27 7月, 2008 6 次提交
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由 Brian King 提交于
Add an ADISC to the target discovery job in order to sanity check whether or not we need to re-login to the target. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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由 Brian King 提交于
Properly setup the size of the async event queue. This fixes a bug where async events were not getting processed by the driver. Setup target_id field in the driver's target struct so that target sysfs attributes work for multiple targets. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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由 Brian King 提交于
If certain ELS events are received during module removal, after the kthread is stopped, the rmmod can hang. This fixes the ibmvfc driver so that ELS events during rmmod are ignored by stopping all device activity prior to killing the kthread and also changes reinitialization to not attempt a reinit if the adapter has been taken offline. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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由 Brian King 提交于
Fix up some refcounting on the ibmvfc drivers internal target struct when accessed through some sysfs attributes. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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由 Brian King 提交于
Reduces some unnecessary log noise by removing a printk during host port state query and increasing the log level required to log received async events. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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由 FUJITA Tomonori 提交于
Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 7月, 2008 1 次提交
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由 Brian King 提交于
Adds support to the ibmvfc driver for collaborative memory overcommit. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NRobert Jennings <rcj@linux.vnet.ibm.com> Acked-by: NPaul Mackerras <paulus@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 12 7月, 2008 1 次提交
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由 Brian King 提交于
This patch adds a new device driver to support the Virtual Fibre Channel interface on IBM Power based servers. The Virtual I/O Server on IBM Power servers utilizes N-Port ID Virtualization to export a Virtual Fibre Channel adapter to the client. This driver is the client device driver. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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