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authorYi Zou <yi.zou@intel.com>2010-11-17 04:27:14 +0100
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2010-11-17 04:27:14 +0100
commit9b55bb038468a7b504ccdc1d956952598ae1b85b (patch)
tree7fbff617fa4868012f0d1240a90e7e06c4d5158d /lib
parentixgbe: invalidate FCoE DDP context when no error status is available (diff)
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ixgbe: make sure FCoE DDP user buffers are really released by the HW
When invalidating the DDP context is invalidated, the HW may not be done with the user buffer right away. In which case, we poll the FCBUFF register to check if the buffer valid bit is cleared or not, if not, we wait for max 100us that is guaranteed by the HW. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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