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Commit 95d161cb authored by Ayaz Abdulla's avatar Ayaz Abdulla Committed by Jeff Garzik
Browse files

[PATCH] forcedeth: watermark fixup 



This patch defines the watermark registers and fixes up the use of this
register.

Signed-Off-By: default avatarAyaz Abdulla <aabdulla@nvidia.com>

Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 9744e218

drivers/net/forcedeth.c

+19 −4
Original line number Diff line number Diff line
@@ -271,8 +271,10 @@ enum { 
#define NVREG_LINKSPEED_MASK	(0xFFF)

	NvRegUnknownSetupReg5 = 0x130,

#define NVREG_UNKSETUP5_BIT31	(1<<31)

	NvRegUnknownSetupReg3 = 0x13c,

#define NVREG_UNKSETUP3_VAL1	0x200010

	NvRegTxWatermark = 0x13c,

#define NVREG_TX_WM_DESC1_DEFAULT	0x0200010

#define NVREG_TX_WM_DESC2_3_DEFAULT	0x1e08000

#define NVREG_TX_WM_DESC2_3_1000	0xfe08000

	NvRegTxRxControl = 0x144,

#define NVREG_TXRXCTL_KICK	0x0001

#define NVREG_TXRXCTL_BIT1	0x0002
@@ -660,7 +662,7 @@ static const struct register_test nv_registers_test[] = { 
	{ NvRegMisc1, 0x03c },

	{ NvRegOffloadConfig, 0x03ff },

	{ NvRegMulticastAddrA, 0xffffffff },

	{ NvRegUnknownSetupReg3, 0x0ff },

	{ NvRegTxWatermark, 0x0ff },

	{ NvRegWakeUpFlags, 0x07777 },

	{ 0,0 }

};
@@ -2257,6 +2259,16 @@ static int nv_update_linkspeed(struct net_device *dev) 
	}

	writel(txreg, base + NvRegTxDeferral);



	if (np->desc_ver == DESC_VER_1) {

		txreg = NVREG_TX_WM_DESC1_DEFAULT;

	} else {

		if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)

			txreg = NVREG_TX_WM_DESC2_3_1000;

		else

			txreg = NVREG_TX_WM_DESC2_3_DEFAULT;

	}

	writel(txreg, base + NvRegTxWatermark);



	writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),

		base + NvRegMisc1);

	pci_push(base);
@@ -3922,7 +3934,10 @@ static int nv_open(struct net_device *dev) 


	/* 5) continue setup */

	writel(np->linkspeed, base + NvRegLinkSpeed);

	writel(NVREG_UNKSETUP3_VAL1, base + NvRegUnknownSetupReg3);

	if (np->desc_ver == DESC_VER_1)

		writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark);

	else

		writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark);

	writel(np->txrxctl_bits, base + NvRegTxRxControl);

	writel(np->vlanctl_bits, base + NvRegVlanControl);

	pci_push(base);