driver/net: enic: Try DMA 64 first, then failover to DMA
In servers with more than 1.1 TB of RAM, the existing 40/32 bit DMA could cause failure as the DMA-able address could go outside the range addressable using 40/32 bits. The following patch first tried 64 bit DMA if possible, failover to 32 bit. Signed-off-by: NSujith Sankar <ssujith@cisco.com> Signed-off-by: NChristian Benvenuti <benve@cisco.com> Signed-off-by: NGovindarajulu Varadarajan <govindarajulu90@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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