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authorYi Zou <yi.zou@intel.com>2011-01-06 14:29:56 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-09 23:44:10 -0800
commit2d39d576fad0fd4bb79a0de26fca50a4be1ffdc1 (patch)
tree12d38ef31a7d6c2a2b1e73e6564091eb9c85ce98 /drivers/net/ucc_geth.c
parent5377a4160bb65ee4dd11b4b1d081d86d56d92bff (diff)
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ixgbe: make sure per Rx queue is disabled before unmapping the receive buffer
When disable the Rx logic globally, we would also want to disable the per Rx queue receive logic by per queue Rx control register RXDCTL so no more DMA is happening from the packet buffer to the receive buffer associated with the Rx ring, before we start unmapping Rx ring receive buffer. The hardware may take max of 100us before the corresponding Rx queue is really disabled. Added ixgbe_disable_rx_queue() for this purpose. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ucc_geth.c')
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