tg3 PXE-related fix

PATCH New Jeff Garzik 1 participant 1 message Nov 26, 2002

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Jeff Garzik

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2002-11-26 23:58 UTC #0 lore raw

PATCH 1/1 tg3 PXE-related fix

Thanks to Manish Lachwani for isolating the area for this fix, which will get checked in soon after some more testing. Fix originated from the Broadcom driver, via Manish's kind help.

Posted mainly in case other netdev'izens with BCM5704 A0 chips are running into this.

Patch against 2.4.20-rc[34]'s tg3.c, a.k.a. version 1.2.

drivers/net/tg3.c +7 -0

diff -Nru a/drivers/net/tg3.c b/drivers/net/tg3.c
@@ -6182,6 +6182,13 @@
 	if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
 		tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
 
+	/* Chip-specific fixup from Broadcom driver */
+	if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
+	    (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
+		pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
+		pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
+	}
+
 	/* Force the chip into D0. */
 	err = tg3_set_power_state(tp, 0);
 	if (err)