On Fri, May 01, 2026 at 10:54:13AM -0500, Alex Elder wrote:

From: Daniel Thompson <redacted>

Currently there are no XGMAC platforms integrated using the multi MSI
interrupt mode. In other words no existing driver sets both
DWMAC_CORE_XGMAC and STMMAC_FLAG_MULTI_MSI_EN.

In order to support systems that do enable both options (such as the
Toshiba TC9564 whose driver is currently being developed) we need to
add logic to the XGMAC DMA callbacks. Happily we can simply
replicate similar code from GMAC4. Let's do that!

The word replicate made me think it has been cut/paste, rather than
being refactored into a helper. However,

+#define XGMAC_INTM_MASK			GENMASK(13, 12)

#define DMA_BUS_MODE_INTM_MASK		GENMASK(17, 16)

Different bits in the register, so the code structure is the same, but
the code cannot be shared in a meaningful way. So this is O.K.

    Andrew