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Commit 98fbebcb authored by Giuseppe CAVALLARO's avatar Giuseppe CAVALLARO Committed by David S. Miller
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stmmac: remove BUS_MODE_DA 



This is a very old and often unused option to configure
a bit in a register inside the DMA. This support should
not stay under Koption and should be extended for new chips too.
This will be do later maybe via device-tree parameters.
Also no performance impact when remove this setting on STi platforms.

Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 50fb4f74

drivers/net/ethernet/stmicro/stmmac/Kconfig

+0 −10
Original line number Diff line number Diff line
@@ -37,14 +37,4 @@ config STMMAC_PCI 
	  D1215994A VIRTEX FPGA board.



	  If unsure, say N.



config STMMAC_DA

	bool "STMMAC DMA arbitration scheme"

	default n

	---help---

	  Selecting this option, rx has priority over Tx (only for Giga

	  Ethernet device).

	  By default, the DMA arbitration scheme is based on Round-robin

	  (rx:tx priority is 1:1).



endif

drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c

+0 −4
Original line number Diff line number Diff line
@@ -70,10 +70,6 @@ static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb, 
	if (mb)

		value |= DMA_BUS_MODE_MB;



#ifdef CONFIG_STMMAC_DA

	value |= DMA_BUS_MODE_DA;	/* Rx has priority over tx */

#endif



	if (atds)

		value |= DMA_BUS_MODE_ATDS;