cxgb4: Add HMA support
HMA(Host Memory Access) maps a part of host memory for T6-SO memfree cards. This commit does the following: - Query FW to check if we have HMA support. If yes, the params will return HMA size configured in FW. We will dma map memory based on this size. - Also contains changes to get HMA memory information via debugfs. Signed-off-by: NArjun Vynipadath <arjun@chelsio.com> Signed-off-by: NSantosh Rastapur <santosh@chelsio.com> Signed-off-by: NMichael Werner <werner@chelsio.com> Signed-off-by: NGanesh GR <ganeshgr@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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