tg3: Code cleanup.

This patch applies cleanups that would otherwise clutter later
patches.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -1002,43 +1002,38 @@ static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
 	return cap;
 }
 
-static void tg3_setup_flow_control(struct tg3 *tp, u32 local_adv, u32 remote_adv)
+static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
 {
-	u8 new_tg3_flags = 0;
+	u8 flowctrl = 0;
 	u32 old_rx_mode = tp->rx_mode;
 	u32 old_tx_mode = tp->tx_mode;
 
 	if (tp->link_config.autoneg == AUTONEG_ENABLE &&
 	    (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
 		if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
-			new_tg3_flags = tg3_resolve_flowctrl_1000X(local_adv,
-								   remote_adv);
+			flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
 		else
-			new_tg3_flags = tg3_resolve_flowctrl_1000T(local_adv,
-								   remote_adv);
-	} else {
-		new_tg3_flags = tp->link_config.flowctrl;
-	}
+			flowctrl = tg3_resolve_flowctrl_1000T(lcladv, rmtadv);
+	} else
+		flowctrl = tp->link_config.flowctrl;
 
-	tp->link_config.active_flowctrl = new_tg3_flags;
+	tp->link_config.active_flowctrl = flowctrl;
 
-	if (new_tg3_flags & TG3_FLOW_CTRL_RX)
+	if (flowctrl & TG3_FLOW_CTRL_RX)
 		tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
 	else
 		tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
 
-	if (old_rx_mode != tp->rx_mode) {
+	if (old_rx_mode != tp->rx_mode)
 		tw32_f(MAC_RX_MODE, tp->rx_mode);
-	}
 
-	if (new_tg3_flags & TG3_FLOW_CTRL_TX)
+	if (flowctrl & TG3_FLOW_CTRL_TX)
 		tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
 	else
 		tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
 
-	if (old_tx_mode != tp->tx_mode) {
+	if (old_tx_mode != tp->tx_mode)
 		tw32_f(MAC_TX_MODE, tp->tx_mode);
-	}
 }
 
 static void tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
@@ -7091,7 +7086,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787) ||
 	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784) ||
 	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761))
-		val |= (1 << 29);
+		val |= WDMAC_MODE_STATUS_TAG_FIX;
 
 	tw32_f(WDMAC_MODE, val);
 	udelay(40);
@@ -11542,14 +11537,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 		}
 	}
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5750 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5755 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5787 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761 &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906)
+	if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
+	     (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 		tp->tg3_flags2 |= TG3_FLG2_JUMBO_CAPABLE;
 
 	pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
@@ -11833,8 +11822,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 			tp->phy_otp = TG3_OTP_DEFAULT;
 	}
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
-	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
+	if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
 		tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
 	else
 		tp->mi_mode = MAC_MI_MODE_BASE;

drivers/net/tg3.h

@@ -1109,6 +1109,7 @@
 #define  WDMAC_MODE_FIFOOREAD_ENAB	 0x00000100
 #define  WDMAC_MODE_LNGREAD_ENAB	 0x00000200
 #define  WDMAC_MODE_RX_ACCEL	 	 0x00000400
+#define  WDMAC_MODE_STATUS_TAG_FIX	 0x20000000
 #define WDMAC_STATUS			0x00004c04
 #define  WDMAC_STATUS_TGTABORT		 0x00000004
 #define  WDMAC_STATUS_MSTABORT		 0x00000008