From: Ard Biesheuvel <ard.biesheu...@linaro.org> Date: Sat, 14 May 2016 22:40:15 +0200
> The current logic around the 'use_dac' module parameter prevents the > r81969 driver from being loadable on 64-bit systems without any RAM > below 4 GB when the parameter is left at its default value. > > So introduce a new default value -1 which indicates that 64-bit DMA > should be enabled on sufficiently recent PCIe chips, i.e., versions > RTL_GIGA_MAC_VER_18 or later. Explicit param values of 0 or 1 retain > the existing behavior of unconditionally enabling/disabling 64-bit DMA > on 64-bit architectures (i.e., regardless of the type and version of the > chip) > > Since PCIe chips do not need to CPlusCmd Dual Address Cycle to be set, > make that conditional on the device type as well. > > Cc: Realtek linux nic maintainers <nic_s...@realtek.com> > Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> Applied, let's see what happens...
