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Switch from the legacy PCI DMA API to the generic DMA API.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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- On posting an IO to the firmware, adapter generates an interrupt.
Due to hardware issues, sometimes the adapter fails to generate
the interrupt. This behavior skips updating transmit queue-
counters, which in turn causes the queue full condition. The fix
addresses the queue full condition.
- The fix also reserves a slot in transmit queue for hba reset.
when queue full is observed during IO, there will always be room
to post hba reset command.
Signed-off-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Cisco has developed a new PCI HBA interface called sNIC, which stands for
SCSI NIC. This is a new storage feature supported on specialized network
adapter. The new PCI function provides a uniform host interface and abstracts
backend storage.
[jejb: fix up checkpatch errors]
Signed-off-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Christoph Hellwig
Narsimhulu Musini