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Commit c11986b9 authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller
Browse files

net: stmmac: xgmac: Detect Hash Table size dinamically 



Since commit b8ef7020 ("net: stmmac: add support for hash table size
128/256 in dwmac4"), we can detect the Hash Table dinamically.

Let's implement this feature in XGMAC cores and fix possible setups that
don't support the maximum size for Hash Table.

Signed-off-by: default avatarJose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9a2ae7b3

drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h

+1 −0
Original line number Diff line number Diff line
@@ -122,6 +122,7 @@ 
#define XGMAC_HWFEAT_GMIISEL		BIT(1)

#define XGMAC_HW_FEATURE1		0x00000120

#define XGMAC_HWFEAT_L3L4FNUM		GENMASK(30, 27)

#define XGMAC_HWFEAT_HASHTBLSZ		GENMASK(25, 24)

#define XGMAC_HWFEAT_RSSEN		BIT(20)

#define XGMAC_HWFEAT_TSOEN		BIT(18)

#define XGMAC_HWFEAT_SPHEN		BIT(17)

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c

+1 −0
Original line number Diff line number Diff line
@@ -380,6 +380,7 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr, 
	/* MAC HW feature 1 */

	hw_cap = readl(ioaddr + XGMAC_HW_FEATURE1);

	dma_cap->l3l4fnum = (hw_cap & XGMAC_HWFEAT_L3L4FNUM) >> 27;

	dma_cap->hash_tb_sz = (hw_cap & XGMAC_HWFEAT_HASHTBLSZ) >> 24;

	dma_cap->rssen = (hw_cap & XGMAC_HWFEAT_RSSEN) >> 20;

	dma_cap->tsoen = (hw_cap & XGMAC_HWFEAT_TSOEN) >> 18;

	dma_cap->sphen = (hw_cap & XGMAC_HWFEAT_SPHEN) >> 17;