diff --git a/sys/dev/e1000/e1000_80003es2lan.c b/sys/dev/e1000/e1000_80003es2lan.c
index db6f1aeb65fb..ac35b4eabf28 100644
--- a/sys/dev/e1000/e1000_80003es2lan.c
+++ b/sys/dev/e1000/e1000_80003es2lan.c
@@ -219,14 +219,14 @@ static s32 e1000_init_mac_params_80003es2lan(struct e1000_hw *hw)
 	/* Set rar entry count */
 	mac->rar_entry_count = E1000_RAR_ENTRIES;
 	/* Set if part includes ASF firmware */
-	mac->asf_firmware_present = TRUE;
+	mac->asf_firmware_present = true;
 	/* FWSM register */
-	mac->has_fwsm = TRUE;
+	mac->has_fwsm = true;
 	/* ARC supported; valid only if manageability features are enabled. */
 	mac->arc_subsystem_valid = !!(E1000_READ_REG(hw, E1000_FWSM) &
 				      E1000_FWSM_MODE_MASK);
 	/* Adaptive IFS not supported */
-	mac->adaptive_ifs = FALSE;
+	mac->adaptive_ifs = false;
 
 	/* Function pointers */
 
@@ -891,8 +891,8 @@ static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
 	reg_data &= ~0x00100000;
 	E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
 
-	/* default to TRUE to enable the MDIC W/A */
-	hw->dev_spec._80003es2lan.mdic_wa_enable = TRUE;
+	/* default to true to enable the MDIC W/A */
+	hw->dev_spec._80003es2lan.mdic_wa_enable = true;
 
 	ret_val =
 	    e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_OFFSET >>
@@ -900,7 +900,7 @@ static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
 	if (!ret_val) {
 		if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
 		     E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
-			hw->dev_spec._80003es2lan.mdic_wa_enable = FALSE;
+			hw->dev_spec._80003es2lan.mdic_wa_enable = false;
 	}
 
 	/* Clear all of the statistics registers (clear on read).  It is
diff --git a/sys/dev/e1000/e1000_82541.c b/sys/dev/e1000/e1000_82541.c
index aaa3de7f02ce..7bb2e8ea9449 100644
--- a/sys/dev/e1000/e1000_82541.c
+++ b/sys/dev/e1000/e1000_82541.c
@@ -230,7 +230,7 @@ static s32 e1000_init_mac_params_82541(struct e1000_hw *hw)
 	/* Set rar entry count */
 	mac->rar_entry_count = E1000_RAR_ENTRIES;
 	/* Set if part includes ASF firmware */
-	mac->asf_firmware_present = TRUE;
+	mac->asf_firmware_present = true;
 
 	/* Function Pointers */
 
@@ -611,11 +611,11 @@ static s32 e1000_check_for_link_82541(struct e1000_hw *hw)
 		goto out;
 
 	if (!link) {
-		ret_val = e1000_config_dsp_after_link_change_82541(hw, FALSE);
+		ret_val = e1000_config_dsp_after_link_change_82541(hw, false);
 		goto out; /* No link detected */
 	}
 
-	mac->get_link_status = FALSE;
+	mac->get_link_status = false;
 
 	/*
 	 * Check if there was DownShift, must be checked
@@ -632,7 +632,7 @@ static s32 e1000_check_for_link_82541(struct e1000_hw *hw)
 		goto out;
 	}
 
-	ret_val = e1000_config_dsp_after_link_change_82541(hw, TRUE);
+	ret_val = e1000_config_dsp_after_link_change_82541(hw, true);
 
 	/*
 	 * Auto-Neg is enabled.  Auto Speed Detection takes care
@@ -937,7 +937,7 @@ static s32 e1000_get_cable_length_igp_82541(struct e1000_hw *hw)
  *  Success returns 0, Failure returns 1
  *
  *  The low power link up (lplu) state is set to the power management level D3
- *  and SmartSpeed is disabled when active is TRUE, else clear lplu for D3
+ *  and SmartSpeed is disabled when active is true, else clear lplu for D3
  *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
  *  is used during Dx states where the power conservation is most important.
  *  During driver activity, SmartSpeed should be enabled so performance is
diff --git a/sys/dev/e1000/e1000_82543.c b/sys/dev/e1000/e1000_82543.c
index 49049b8646cd..9a93090c2d33 100644
--- a/sys/dev/e1000/e1000_82543.c
+++ b/sys/dev/e1000/e1000_82543.c
@@ -256,7 +256,7 @@ static s32 e1000_init_mac_params_82543(struct e1000_hw *hw)
 	/* Set tbi compatibility */
 	if ((hw->mac.type != e1000_82543) ||
 	    (hw->phy.media_type == e1000_media_type_fiber))
-		e1000_set_tbi_compatibility_82543(hw, FALSE);
+		e1000_set_tbi_compatibility_82543(hw, false);
 
 	return E1000_SUCCESS;
 }
@@ -286,7 +286,7 @@ void e1000_init_function_pointers_82543(struct e1000_hw *hw)
 static bool e1000_tbi_compatibility_enabled_82543(struct e1000_hw *hw)
 {
 	struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
-	bool state = FALSE;
+	bool state = false;
 
 	DEBUGFUNC("e1000_tbi_compatibility_enabled_82543");
 
@@ -338,7 +338,7 @@ void e1000_set_tbi_compatibility_82543(struct e1000_hw *hw, bool state)
 bool e1000_tbi_sbp_enabled_82543(struct e1000_hw *hw)
 {
 	struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
-	bool state = FALSE;
+	bool state = false;
 
 	DEBUGFUNC("e1000_tbi_sbp_enabled_82543");
 
@@ -379,7 +379,7 @@ static void e1000_set_tbi_sbp_82543(struct e1000_hw *hw, bool state)
  *  @hw: pointer to the HW structure
  *
  *  Returns the current status of whether PHY initialization is disabled.
- *  True if PHY initialization is disabled else FALSE.
+ *  True if PHY initialization is disabled else false.
  **/
 static bool e1000_init_phy_disabled_82543(struct e1000_hw *hw)
 {
@@ -389,7 +389,7 @@ static bool e1000_init_phy_disabled_82543(struct e1000_hw *hw)
 	DEBUGFUNC("e1000_init_phy_disabled_82543");
 
 	if (hw->mac.type != e1000_82543) {
-		ret_val = FALSE;
+		ret_val = false;
 		goto out;
 	}
 
@@ -913,7 +913,7 @@ static s32 e1000_reset_hw_82543(struct e1000_hw *hw)
 	E1000_WRITE_REG(hw, E1000_TCTL, E1000_TCTL_PSP);
 	E1000_WRITE_FLUSH(hw);
 
-	e1000_set_tbi_sbp_82543(hw, FALSE);
+	e1000_set_tbi_sbp_82543(hw, false);
 
 	/*
 	 * Delay to allow any outstanding PCI transactions to complete before
@@ -1217,7 +1217,7 @@ static s32 e1000_check_for_copper_link_82543(struct e1000_hw *hw)
 	if (!link)
 		goto out; /* No link detected */
 
-	mac->get_link_status = FALSE;
+	mac->get_link_status = false;
 
 	e1000_check_downshift_generic(hw);
 
@@ -1299,7 +1299,7 @@ static s32 e1000_check_for_copper_link_82543(struct e1000_hw *hw)
 				 * If we previously were in the mode,
 				 * turn it off.
 				 */
-				e1000_set_tbi_sbp_82543(hw, FALSE);
+				e1000_set_tbi_sbp_82543(hw, false);
 				rctl = E1000_READ_REG(hw, E1000_RCTL);
 				rctl &= ~E1000_RCTL_SBP;
 				E1000_WRITE_REG(hw, E1000_RCTL, rctl);
@@ -1313,7 +1313,7 @@ static s32 e1000_check_for_copper_link_82543(struct e1000_hw *hw)
 			 * will look like CRC errors to the hardware.
 			 */
 			if (!e1000_tbi_sbp_enabled_82543(hw)) {
-				e1000_set_tbi_sbp_82543(hw, TRUE);
+				e1000_set_tbi_sbp_82543(hw, true);
 				rctl = E1000_READ_REG(hw, E1000_RCTL);
 				rctl |= E1000_RCTL_SBP;
 				E1000_WRITE_REG(hw, E1000_RCTL, rctl);
@@ -1356,7 +1356,7 @@ static s32 e1000_check_for_fiber_link_82543(struct e1000_hw *hw)
 	    (!(status & E1000_STATUS_LU)) &&
 	    (!(rxcw & E1000_RXCW_C))) {
 		if (!mac->autoneg_failed) {
-			mac->autoneg_failed = TRUE;
+			mac->autoneg_failed = true;
 			ret_val = 0;
 			goto out;
 		}
@@ -1387,7 +1387,7 @@ static s32 e1000_check_for_fiber_link_82543(struct e1000_hw *hw)
 		E1000_WRITE_REG(hw, E1000_TXCW, mac->txcw);
 		E1000_WRITE_REG(hw, E1000_CTRL, (ctrl & ~E1000_CTRL_SLU));
 
-		mac->serdes_has_link = TRUE;
+		mac->serdes_has_link = true;
 	}
 
 out:
diff --git a/sys/dev/e1000/e1000_82571.c b/sys/dev/e1000/e1000_82571.c
index 8db1fcb921a9..cae9afcb2d78 100644
--- a/sys/dev/e1000/e1000_82571.c
+++ b/sys/dev/e1000/e1000_82571.c
@@ -285,7 +285,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 	struct e1000_mac_info *mac = &hw->mac;
 	u32 swsm = 0;
 	u32 swsm2 = 0;
-	bool force_clear_smbi = FALSE;
+	bool force_clear_smbi = false;
 
 	DEBUGFUNC("e1000_init_mac_params_82571");
 
@@ -327,9 +327,9 @@ static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 	/* Set rar entry count */
 	mac->rar_entry_count = E1000_RAR_ENTRIES;
 	/* Set if part includes ASF firmware */
-	mac->asf_firmware_present = TRUE;
+	mac->asf_firmware_present = true;
 	/* Adaptive IFS supported */
-	mac->adaptive_ifs = TRUE;
+	mac->adaptive_ifs = true;
 
 	/* Function pointers */
 
@@ -369,7 +369,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 		mac->ops.blink_led = e1000_blink_led_generic;
 
 		/* FWSM register */
-		mac->has_fwsm = TRUE;
+		mac->has_fwsm = true;
 		/* ARC supported; valid only if manageability features are
 		 * enabled.
 		 */
@@ -388,7 +388,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 		mac->ops.blink_led = e1000_blink_led_generic;
 
 		/* FWSM register */
-		mac->has_fwsm = TRUE;
+		mac->has_fwsm = true;
 		break;
 	}
 
@@ -407,13 +407,13 @@ static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 			/* Only do this for the first interface on this card */
 			E1000_WRITE_REG(hw, E1000_SWSM2, swsm2 |
 					E1000_SWSM2_LOCK);
-			force_clear_smbi = TRUE;
+			force_clear_smbi = true;
 		} else {
-			force_clear_smbi = FALSE;
+			force_clear_smbi = false;
 		}
 		break;
 	default:
-		force_clear_smbi = TRUE;
+		force_clear_smbi = true;
 		break;
 	}
 
@@ -563,7 +563,7 @@ e1000_put_hw_semaphore_82574(struct e1000_hw *hw)
 /**
  *  e1000_set_d0_lplu_state_82574 - Set Low Power Linkup D0 state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU D0 state according to the active flag.
  *  LPLU will not be activated unless the
@@ -593,7 +593,7 @@ static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active)
  *  @active: boolean used to enable/disable lplu
  *
  *  The low power link up (lplu) state is set to the power management level D3
- *  when active is TRUE, else clear lplu for D3. LPLU
+ *  when active is true, else clear lplu for D3. LPLU
  *  is used during Dx states where the power conservation is most important.
  *  During driver activity, SmartSpeed should be enabled so performance is
  *  maintained.
@@ -860,7 +860,7 @@ static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw)
 /**
  *  e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU D0 state according to the active flag.  When activating LPLU
  *  this function also disables smart speed and vice versa.  LPLU will not be
@@ -1051,7 +1051,7 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 		if (ret_val)
 			return ret_val;
 
-		e1000_set_laa_state_82571(hw, TRUE);
+		e1000_set_laa_state_82571(hw, true);
 	}
 
 	/* Reinitialize the 82571 serdes link state machine */
@@ -1327,8 +1327,8 @@ static void e1000_clear_vfta_82571(struct e1000_hw *hw)
  *  e1000_check_mng_mode_82574 - Check manageability is enabled
  *  @hw: pointer to the HW structure
  *
- *  Reads the NVM Initialization Control Word 2 and returns TRUE
- *  (>0) if any manageability is enabled, else FALSE (0).
+ *  Reads the NVM Initialization Control Word 2 and returns true
+ *  (>0) if any manageability is enabled, else false (0).
  **/
 static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
 {
@@ -1339,7 +1339,7 @@ static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
 
 	ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, 1, &data);
 	if (ret_val)
-		return FALSE;
+		return false;
 
 	return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
 }
@@ -1392,18 +1392,18 @@ bool e1000_check_phy_82574(struct e1000_hw *hw)
 	ret_val = hw->phy.ops.read_reg(hw, E1000_RECEIVE_ERROR_COUNTER,
 				       &receive_errors);
 	if (ret_val)
-		return FALSE;
+		return false;
 	if (receive_errors == E1000_RECEIVE_ERROR_MAX) {
 		ret_val = hw->phy.ops.read_reg(hw, E1000_BASE1000T_STATUS,
 					       &status_1kbt);
 		if (ret_val)
-			return FALSE;
+			return false;
 		if ((status_1kbt & E1000_IDLE_ERROR_COUNT_MASK) ==
 		    E1000_IDLE_ERROR_COUNT_MASK)
-			return TRUE;
+			return true;
 	}
 
-	return FALSE;
+	return false;
 }
 
 
@@ -1556,10 +1556,10 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 				 */
 				mac->serdes_link_state =
 				    e1000_serdes_link_autoneg_progress;
-				mac->serdes_has_link = FALSE;
+				mac->serdes_has_link = false;
 				DEBUGOUT("AN_UP     -> AN_PROG\n");
 			} else {
-				mac->serdes_has_link = TRUE;
+				mac->serdes_has_link = true;
 			}
 			break;
 
@@ -1576,10 +1576,10 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 				    (ctrl & ~E1000_CTRL_SLU));
 				mac->serdes_link_state =
 				    e1000_serdes_link_autoneg_progress;
-				mac->serdes_has_link = FALSE;
+				mac->serdes_has_link = false;
 				DEBUGOUT("FORCED_UP -> AN_PROG\n");
 			} else {
-				mac->serdes_has_link = TRUE;
+				mac->serdes_has_link = true;
 			}
 			break;
 
@@ -1593,7 +1593,7 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 					mac->serdes_link_state =
 					    e1000_serdes_link_autoneg_complete;
 					DEBUGOUT("AN_PROG   -> AN_UP\n");
-					mac->serdes_has_link = TRUE;
+					mac->serdes_has_link = true;
 				} else {
 					/* Autoneg completed, but failed. */
 					mac->serdes_link_state =
@@ -1619,7 +1619,7 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 				}
 				mac->serdes_link_state =
 						e1000_serdes_link_forced_up;
-				mac->serdes_has_link = TRUE;
+				mac->serdes_has_link = true;
 				DEBUGOUT("AN_PROG   -> FORCED_UP\n");
 			}
 			break;
@@ -1635,13 +1635,13 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 					~E1000_CTRL_SLU));
 			mac->serdes_link_state =
 					e1000_serdes_link_autoneg_progress;
-			mac->serdes_has_link = FALSE;
+			mac->serdes_has_link = false;
 			DEBUGOUT("DOWN      -> AN_PROG\n");
 			break;
 		}
 	} else {
 		if (!(rxcw & E1000_RXCW_SYNCH)) {
-			mac->serdes_has_link = FALSE;
+			mac->serdes_has_link = false;
 			mac->serdes_link_state = e1000_serdes_link_down;
 			DEBUGOUT("ANYSTATE  -> DOWN\n");
 		} else {
@@ -1657,7 +1657,7 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 					continue;
 
 				if (rxcw & E1000_RXCW_IV) {
-					mac->serdes_has_link = FALSE;
+					mac->serdes_has_link = false;
 					mac->serdes_link_state =
 							e1000_serdes_link_down;
 					DEBUGOUT("ANYSTATE  -> DOWN\n");
@@ -1671,7 +1671,7 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 				E1000_WRITE_REG(hw, E1000_TXCW, txcw);
 				mac->serdes_link_state =
 					e1000_serdes_link_autoneg_progress;
-				mac->serdes_has_link = FALSE;
+				mac->serdes_has_link = false;
 				DEBUGOUT("ANYSTATE  -> AN_PROG\n");
 			}
 		}
@@ -1728,7 +1728,7 @@ bool e1000_get_laa_state_82571(struct e1000_hw *hw)
 	DEBUGFUNC("e1000_get_laa_state_82571");
 
 	if (hw->mac.type != e1000_82571)
-		return FALSE;
+		return false;
 
 	return hw->dev_spec._82571.laa_is_present;
 }
diff --git a/sys/dev/e1000/e1000_82575.c b/sys/dev/e1000/e1000_82575.c
index 29805270f8dc..59d8b9c85dc3 100644
--- a/sys/dev/e1000/e1000_82575.c
+++ b/sys/dev/e1000/e1000_82575.c
@@ -128,7 +128,7 @@ static const u16 e1000_82580_rxpbs_table[] = {
 static bool e1000_sgmii_uses_mdio_82575(struct e1000_hw *hw)
 {
 	u32 reg = 0;
-	bool ext_mdio = FALSE;
+	bool ext_mdio = false;
 
 	DEBUGFUNC("e1000_sgmii_uses_mdio_82575");
 
@@ -348,16 +348,16 @@ static s32 e1000_init_mac_params_82575(struct e1000_hw *hw)
 
 	/* Enable EEE default settings for EEE supported devices */
 	if (mac->type >= e1000_i350)
-		dev_spec->eee_disable = FALSE;
+		dev_spec->eee_disable = false;
 
 	/* Allow a single clear of the SW semaphore on I210 and newer */
 	if (mac->type >= e1000_i210)
-		dev_spec->clear_semaphore_once = TRUE;
+		dev_spec->clear_semaphore_once = true;
 
 	/* Set if part includes ASF firmware */
-	mac->asf_firmware_present = TRUE;
+	mac->asf_firmware_present = true;
 	/* FWSM register */
-	mac->has_fwsm = TRUE;
+	mac->has_fwsm = true;
 	/* ARC supported; valid only if manageability features are enabled. */
 	mac->arc_subsystem_valid =
 		!!(E1000_READ_REG(hw, E1000_FWSM) & E1000_FWSM_MODE_MASK);
@@ -716,7 +716,7 @@ static s32 e1000_phy_hw_reset_sgmii_82575(struct e1000_hw *hw)
 	DEBUGFUNC("e1000_phy_hw_reset_sgmii_82575");
 
 	/*
-	 * This isn't a TRUE "hard" reset, but is the only reset
+	 * This isn't a true "hard" reset, but is the only reset
 	 * available to us at this time.
 	 */
 
@@ -746,7 +746,7 @@ static s32 e1000_phy_hw_reset_sgmii_82575(struct e1000_hw *hw)
 /**
  *  e1000_set_d0_lplu_state_82575 - Set Low Power Linkup D0 state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU D0 state according to the active flag.  When
  *  activating LPLU this function also disables smart speed
@@ -832,7 +832,7 @@ static s32 e1000_set_d0_lplu_state_82575(struct e1000_hw *hw, bool active)
 /**
  *  e1000_set_d0_lplu_state_82580 - Set Low Power Linkup D0 state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU D0 state according to the active flag.  When
  *  activating LPLU this function also disables smart speed
@@ -883,7 +883,7 @@ static s32 e1000_set_d0_lplu_state_82580(struct e1000_hw *hw, bool active)
  *  Success returns 0, Failure returns 1
  *
  *  The low power link up (lplu) state is set to the power management level D3
- *  and SmartSpeed is disabled when active is TRUE, else clear lplu for D3
+ *  and SmartSpeed is disabled when active is true, else clear lplu for D3
  *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
  *  is used during Dx states where the power conservation is most important.
  *  During driver activity, SmartSpeed should be enabled so performance is
@@ -1139,7 +1139,7 @@ static s32 e1000_check_for_link_media_swap(struct e1000_hw *hw)
 	/* Determine if a swap needs to happen. */
 	if (port && (hw->dev_spec._82575.media_port != port)) {
 		hw->dev_spec._82575.media_port = port;
-		hw->dev_spec._82575.media_changed = TRUE;
+		hw->dev_spec._82575.media_changed = true;
 	}
 
 	if (port == E1000_MEDIA_PORT_COPPER) {
@@ -1217,7 +1217,7 @@ static s32 e1000_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw,
 	 * The link up bit determines when link is up on autoneg.
 	 */
 	if (pcs & E1000_PCS_LSTS_LINK_OK) {
-		mac->serdes_has_link = TRUE;
+		mac->serdes_has_link = true;
 
 		/* Detect and store PCS speed */
 		if (pcs & E1000_PCS_LSTS_SPEED_1000)
@@ -1246,7 +1246,7 @@ static s32 e1000_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw,
 		}
 
 	} else {
-		mac->serdes_has_link = FALSE;
+		mac->serdes_has_link = false;
 		*speed = 0;
 		*duplex = 0;
 	}
@@ -1527,13 +1527,13 @@ static s32 e1000_setup_serdes_link_82575(struct e1000_hw *hw)
 	switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) {
 	case E1000_CTRL_EXT_LINK_MODE_SGMII:
 		/* sgmii mode lets the phy handle forcing speed/duplex */
-		pcs_autoneg = TRUE;
+		pcs_autoneg = true;
 		/* autoneg time out should be disabled for SGMII mode */
 		reg &= ~(E1000_PCS_LCTL_AN_TIMEOUT);
 		break;
 	case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
 		/* disable PCS autoneg and support parallel detect only */
-		pcs_autoneg = FALSE;
+		pcs_autoneg = false;
 		/* FALLTHROUGH */
 	default:
 		if (hw->mac.type == e1000_82575 ||
@@ -1545,7 +1545,7 @@ static s32 e1000_setup_serdes_link_82575(struct e1000_hw *hw)
 			}
 
 			if (data & E1000_EEPROM_PCS_AUTONEG_DISABLE_BIT)
-				pcs_autoneg = FALSE;
+				pcs_autoneg = false;
 		}
 
 		/*
@@ -1637,8 +1637,8 @@ static s32 e1000_get_media_type_82575(struct e1000_hw *hw)
 	u32 link_mode = 0;
 
 	/* Set internal phy as default */
-	dev_spec->sgmii_active = FALSE;
-	dev_spec->module_plugged = FALSE;
+	dev_spec->sgmii_active = false;
+	dev_spec->module_plugged = false;
 
 	/* Get CSR setting */
 	ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
@@ -1657,7 +1657,7 @@ static s32 e1000_get_media_type_82575(struct e1000_hw *hw)
 		/* Get phy control interface type set (MDIO vs. I2C)*/
 		if (e1000_sgmii_uses_mdio_82575(hw)) {
 			hw->phy.media_type = e1000_media_type_copper;
-			dev_spec->sgmii_active = TRUE;
+			dev_spec->sgmii_active = true;
 			break;
 		}
 		/* fall through for I2C based SGMII */
@@ -1675,7 +1675,7 @@ static s32 e1000_get_media_type_82575(struct e1000_hw *hw)
 
 			if (link_mode == E1000_CTRL_EXT_LINK_MODE_SGMII) {
 				hw->phy.media_type = e1000_media_type_copper;
-				dev_spec->sgmii_active = TRUE;
+				dev_spec->sgmii_active = true;
 			}
 
 			break;
@@ -1746,14 +1746,14 @@ static s32 e1000_set_sfp_media_type_82575(struct e1000_hw *hw)
 	/* Check if there is some SFP module plugged and powered */
 	if ((tranceiver_type == E1000_SFF_IDENTIFIER_SFP) ||
 	    (tranceiver_type == E1000_SFF_IDENTIFIER_SFF)) {
-		dev_spec->module_plugged = TRUE;
+		dev_spec->module_plugged = true;
 		if (eth_flags->e1000_base_lx || eth_flags->e1000_base_sx) {
 			hw->phy.media_type = e1000_media_type_internal_serdes;
 		} else if (eth_flags->e100_base_fx) {
-			dev_spec->sgmii_active = TRUE;
+			dev_spec->sgmii_active = true;
 			hw->phy.media_type = e1000_media_type_internal_serdes;
 		} else if (eth_flags->e1000_base_t) {
-			dev_spec->sgmii_active = TRUE;
+			dev_spec->sgmii_active = true;
 			hw->phy.media_type = e1000_media_type_copper;
 		} else {
 			hw->phy.media_type = e1000_media_type_unknown;
@@ -2224,11 +2224,11 @@ static s32 e1000_reset_hw_82580(struct e1000_hw *hw)
 
 	DEBUGFUNC("e1000_reset_hw_82580");
 
-	hw->dev_spec._82575.global_device_reset = FALSE;
+	hw->dev_spec._82575.global_device_reset = false;
 
 	/* 82580 does not reliably do global_device_reset due to hw errata */
 	if (hw->mac.type == e1000_82580)
-		global_device_reset = FALSE;
+		global_device_reset = false;
 
 	/* Get current control state. */
 	ctrl = E1000_READ_REG(hw, E1000_CTRL);
@@ -2252,7 +2252,7 @@ static s32 e1000_reset_hw_82580(struct e1000_hw *hw)
 	/* Determine whether or not a global dev reset is requested */
 	if (global_device_reset && hw->mac.ops.acquire_swfw_sync(hw,
 	    swmbsw_mask))
-			global_device_reset = FALSE;
+			global_device_reset = false;
 
 	if (global_device_reset && !(E1000_READ_REG(hw, E1000_STATUS) &
 	    E1000_STAT_DEV_RST_SET))
@@ -2572,7 +2572,7 @@ s32 e1000_read_emi_reg(struct e1000_hw *hw, u16 addr, u16 *data)
 {
 	DEBUGFUNC("e1000_read_emi_reg");
 
-	return __e1000_access_emi_reg(hw, addr, data, TRUE);
+	return __e1000_access_emi_reg(hw, addr, data, true);
 }
 
 /**
@@ -2930,7 +2930,7 @@ s32 e1000_get_eee_status_i354(struct e1000_hw *hw, bool *status)
 		goto out;
 
 	*status = phy_data & (E1000_PCS_STATUS_TX_LPI_RCVD |
-			      E1000_PCS_STATUS_RX_LPI_RCVD) ? TRUE : FALSE;
+			      E1000_PCS_STATUS_RX_LPI_RCVD) ? true : false;
 
 out:
 	return ret_val;
@@ -3032,7 +3032,7 @@ s32 e1000_read_i2c_byte_generic(struct e1000_hw *hw, u8 byte_offset,
 	u32 retry = 1;
 	u16 swfw_mask = 0;
 
-	bool nack = TRUE;
+	bool nack = true;
 
 	DEBUGFUNC("e1000_read_i2c_byte_generic");
 
@@ -3299,7 +3299,7 @@ static s32 e1000_get_i2c_ack(struct e1000_hw *hw)
 	u32 i = 0;
 	u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
 	u32 timeout = 10;
-	bool ack = TRUE;
+	bool ack = true;
 
 	DEBUGFUNC("e1000_get_i2c_ack");
 
diff --git a/sys/dev/e1000/e1000_api.c b/sys/dev/e1000/e1000_api.c
index b28ab77f3794..5c778a48bba0 100644
--- a/sys/dev/e1000/e1000_api.c
+++ b/sys/dev/e1000/e1000_api.c
@@ -421,10 +421,10 @@ s32 e1000_set_mac_type(struct e1000_hw *hw)
 /**
  *  e1000_setup_init_funcs - Initializes function pointers
  *  @hw: pointer to the HW structure
- *  @init_device: TRUE will initialize the rest of the function pointers
- *		  getting the device ready for use.  FALSE will only set
+ *  @init_device: true will initialize the rest of the function pointers
+ *		  getting the device ready for use.  false will only set
  *		  MAC type and the function pointers for the other init
- *		  functions.  Passing FALSE will not generate any hardware
+ *		  functions.  Passing false will not generate any hardware
  *		  reads or writes.
  *
  *  This function must be called by a driver in order to use the rest
@@ -656,7 +656,7 @@ bool e1000_check_mng_mode(struct e1000_hw *hw)
 	if (hw->mac.ops.check_mng_mode)
 		return hw->mac.ops.check_mng_mode(hw);
 
-	return FALSE;
+	return false;
 }
 
 /**
@@ -1186,7 +1186,7 @@ s32 e1000_phy_commit(struct e1000_hw *hw)
  *  Success returns 0, Failure returns 1
  *
  *  The low power link up (lplu) state is set to the power management level D0
- *  and SmartSpeed is disabled when active is TRUE, else clear lplu for D0
+ *  and SmartSpeed is disabled when active is true, else clear lplu for D0
  *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
  *  is used during Dx states where the power conservation is most important.
  *  During driver activity, SmartSpeed should be enabled so performance is
@@ -1208,7 +1208,7 @@ s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active)
  *  Success returns 0, Failure returns 1
  *
  *  The low power link up (lplu) state is set to the power management level D3
- *  and SmartSpeed is disabled when active is TRUE, else clear lplu for D3
+ *  and SmartSpeed is disabled when active is true, else clear lplu for D3
  *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
  *  is used during Dx states where the power conservation is most important.
  *  During driver activity, SmartSpeed should be enabled so performance is
diff --git a/sys/dev/e1000/e1000_api.h b/sys/dev/e1000/e1000_api.h
index c96030b567db..48cf33213043 100644
--- a/sys/dev/e1000/e1000_api.h
+++ b/sys/dev/e1000/e1000_api.h
@@ -140,11 +140,11 @@ u32  e1000_translate_register_82542(u32 reg);
  * Typical use:
  *  ...
  *  if (TBI_ACCEPT) {
- *      accept_frame = TRUE;
+ *      accept_frame = true;
  *      e1000_tbi_adjust_stats(adapter, MacAddress);
  *      frame_length--;
  *  } else {
- *      accept_frame = FALSE;
+ *      accept_frame = false;
  *  }
  *  ...
  */
diff --git a/sys/dev/e1000/e1000_hw.h b/sys/dev/e1000/e1000_hw.h
index 90bc652861b5..6ee252e147a4 100644
--- a/sys/dev/e1000/e1000_hw.h
+++ b/sys/dev/e1000/e1000_hw.h
@@ -275,7 +275,7 @@ enum e1000_mac_type {
 	e1000_i211,
 	e1000_vfadapt,
 	e1000_vfadapt_i350,
-	e1000_num_macs  /* List is 1-based, so subtract 1 for TRUE count. */
+	e1000_num_macs  /* List is 1-based, so subtract 1 for true count. */
 };
 
 enum e1000_media_type {
diff --git a/sys/dev/e1000/e1000_i210.c b/sys/dev/e1000/e1000_i210.c
index 0d810fecf3bd..da2e786130c8 100644
--- a/sys/dev/e1000/e1000_i210.c
+++ b/sys/dev/e1000/e1000_i210.c
@@ -552,14 +552,14 @@ s32 e1000_update_nvm_checksum_i210(struct e1000_hw *hw)
 bool e1000_get_flash_presence_i210(struct e1000_hw *hw)
 {
 	u32 eec = 0;
-	bool ret_val = FALSE;
+	bool ret_val = false;
 
 	DEBUGFUNC("e1000_get_flash_presence_i210");
 
 	eec = E1000_READ_REG(hw, E1000_EECD);
 
 	if (eec & E1000_EECD_FLASH_DETECTED_I210)
-		ret_val = TRUE;
+		ret_val = true;
 
 	return ret_val;
 }
diff --git a/sys/dev/e1000/e1000_ich8lan.c b/sys/dev/e1000/e1000_ich8lan.c
index dd4e85d64aff..5cd13579d50c 100644
--- a/sys/dev/e1000/e1000_ich8lan.c
+++ b/sys/dev/e1000/e1000_ich8lan.c
@@ -242,7 +242,7 @@ static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw)
 	}
 
 	if (ret_val)
-		return FALSE;
+		return false;
 out:
 	if (hw->mac.type >= e1000_pch_lpt) {
 		/* Only unforce SMBus if ME is not active */
@@ -260,7 +260,7 @@ static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw)
 		}
 	}
 
-	return TRUE;
+	return true;
 }
 
 /**
@@ -324,7 +324,7 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
 	/* Gate automatic PHY configuration by hardware on managed and
 	 * non-managed 82579 and newer adapters.
 	 */
-	e1000_gate_hw_phy_config_ich8lan(hw, TRUE);
+	e1000_gate_hw_phy_config_ich8lan(hw, true);
 
 	/* It is not possible to be certain of the current state of ULP
 	 * so forcibly disable it.
@@ -439,7 +439,7 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
 	if ((hw->mac.type == e1000_pch2lan) &&
 	    !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
 		msec_delay(10);
-		e1000_gate_hw_phy_config_ich8lan(hw, FALSE);
+		e1000_gate_hw_phy_config_ich8lan(hw, false);
 	}
 
 	return ret_val;
@@ -699,7 +699,7 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
 
 	/* Clear shadow ram */
 	for (i = 0; i < nvm->word_size; i++) {
-		dev_spec->shadow_ram[i].modified = FALSE;
+		dev_spec->shadow_ram[i].modified = false;
 		dev_spec->shadow_ram[i].value    = 0xFFFF;
 	}
 
@@ -743,13 +743,13 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
 	if (mac->type == e1000_ich8lan)
 		mac->rar_entry_count--;
 	/* Set if part includes ASF firmware */
-	mac->asf_firmware_present = TRUE;
+	mac->asf_firmware_present = true;
 	/* FWSM register */
-	mac->has_fwsm = TRUE;
+	mac->has_fwsm = true;
 	/* ARC subsystem not supported */
-	mac->arc_subsystem_valid = FALSE;
+	mac->arc_subsystem_valid = false;
 	/* Adaptive IFS supported */
-	mac->adaptive_ifs = TRUE;
+	mac->adaptive_ifs = true;
 
 	/* Function pointers */
 
@@ -833,7 +833,7 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
 
 	/* Enable PCS Lock-loss workaround for ICH8 */
 	if (mac->type == e1000_ich8lan)
-		e1000_set_kmrn_lock_loss_workaround_ich8lan(hw, TRUE);
+		e1000_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
 
 	return E1000_SUCCESS;
 }
@@ -880,7 +880,7 @@ s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data)
 {
 	DEBUGFUNC("e1000_read_emi_reg_locked");
 
-	return __e1000_access_emi_reg_locked(hw, addr, data, TRUE);
+	return __e1000_access_emi_reg_locked(hw, addr, data, true);
 }
 
 /**
@@ -895,7 +895,7 @@ s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data)
 {
 	DEBUGFUNC("e1000_read_emi_reg_locked");
 
-	return __e1000_access_emi_reg_locked(hw, addr, &data, FALSE);
+	return __e1000_access_emi_reg_locked(hw, addr, &data, false);
 }
 
 /**
@@ -1112,7 +1112,7 @@ static u64 e1000_ltr2ns(u16 ltr)
  *  GbE MAC in the Lynx Point PCH based on Rx buffer size and link speed
  *  when link is up (which must not exceed the maximum latency supported
  *  by the platform), otherwise specify there is no LTR requirement.
- *  Unlike TRUE-PCIe devices which set the LTR maximum snoop/no-snoop
+ *  Unlike true-PCIe devices which set the LTR maximum snoop/no-snoop
  *  latencies in the LTR Extended Capability Structure in the PCIe Extended
  *  Capability register set, on this device LTR is set by writing the
  *  equivalent snoop/no-snoop latencies in the LTRV register in the MAC and
@@ -1410,8 +1410,8 @@ s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx)
  *  If not on an ME enabled system, un-configure the ULP mode by software.
  *
  *  During nominal operation, this function is called when link is acquired
- *  to disable ULP mode (force=FALSE); otherwise, for example when unloading
- *  the driver or during Sx->S0 transitions, this is called with force=TRUE
+ *  to disable ULP mode (force=false); otherwise, for example when unloading
+ *  the driver or during Sx->S0 transitions, this is called with force=true
  *  to forcibly disable ULP.
  */
 s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
@@ -1745,7 +1745,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 				fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE;
 		}
 
-		if (hw->dev_spec.ich8lan.disable_k1_off == TRUE)
+		if (hw->dev_spec.ich8lan.disable_k1_off == true)
 			fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE;
 
 		E1000_WRITE_REG(hw, E1000_FEXTNVM6, fextnvm6);
@@ -1754,7 +1754,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 	if (!link)
 		return E1000_SUCCESS; /* No link detected */
 
-	mac->get_link_status = FALSE;
+	mac->get_link_status = false;
 
 	switch (hw->mac.type) {
 	case e1000_pch2lan:
@@ -2209,7 +2209,7 @@ static void e1000_update_mc_addr_list_pch2lan(struct e1000_hw *hw,
 static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
 {
 	u32 fwsm;
-	bool blocked = FALSE;
+	bool blocked = false;
 	int i = 0;
 
 	DEBUGFUNC("e1000_check_reset_block_ich8lan");
@@ -2217,11 +2217,11 @@ static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
 	do {
 		fwsm = E1000_READ_REG(hw, E1000_FWSM);
 		if (!(fwsm & E1000_ICH_FWSM_RSPCIPHY)) {
-			blocked = TRUE;
+			blocked = true;
 			msec_delay(10);
 			continue;
 		}
-		blocked = FALSE;
+		blocked = false;
 	} while (blocked && (i++ < 30));
 	return blocked ? E1000_BLK_PHY_RESET : E1000_SUCCESS;
 }
@@ -2435,7 +2435,7 @@ static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
 			if (status_reg == (BM_CS_STATUS_LINK_UP |
 					   BM_CS_STATUS_RESOLVED |
 					   BM_CS_STATUS_SPEED_1000))
-				k1_enable = FALSE;
+				k1_enable = false;
 		}
 
 		if (hw->phy.type == e1000_phy_82577) {
@@ -2451,7 +2451,7 @@ static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
 			if (status_reg == (HV_M_STATUS_LINK_UP |
 					   HV_M_STATUS_AUTONEG_COMPLETE |
 					   HV_M_STATUS_SPEED_1000))
-				k1_enable = FALSE;
+				k1_enable = false;
 		}
 
 		/* Link stall fix for link up */
@@ -2688,7 +2688,7 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
 	/* Configure the K1 Si workaround during phy reset assuming there is
 	 * link so that it disables K1 if link is in 1Gbps.
 	 */
-	ret_val = e1000_k1_gig_workaround_hv(hw, TRUE);
+	ret_val = e1000_k1_gig_workaround_hv(hw, true);
 	if (ret_val)
 		return ret_val;
 
@@ -3033,7 +3033,7 @@ static s32 e1000_k1_workaround_lv(struct e1000_hw *hw)
 /**
  *  e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware
  *  @hw:   pointer to the HW structure
- *  @gate: boolean set to TRUE to gate, FALSE to ungate
+ *  @gate: boolean set to true to gate, false to ungate
  *
  *  Gate/ungate the automatic PHY configuration via hardware; perform
  *  the configuration via software instead.
@@ -3136,14 +3136,14 @@ static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
 		return ret_val;
 
 	/* Configure the LCD with the OEM bits in NVM */
-	ret_val = e1000_oem_bits_config_ich8lan(hw, TRUE);
+	ret_val = e1000_oem_bits_config_ich8lan(hw, true);
 
 	if (hw->mac.type == e1000_pch2lan) {
 		/* Ungate automatic PHY configuration on non-managed 82579 */
 		if (!(E1000_READ_REG(hw, E1000_FWSM) &
 		    E1000_ICH_FWSM_FW_VALID)) {
 			msec_delay(10);
-			e1000_gate_hw_phy_config_ich8lan(hw, FALSE);
+			e1000_gate_hw_phy_config_ich8lan(hw, false);
 		}
 
 		/* Set EEE LPI Update Timer to 200usec */
@@ -3176,7 +3176,7 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
 	/* Gate automatic PHY configuration by hardware on non-managed 82579 */
 	if ((hw->mac.type == e1000_pch2lan) &&
 	    !(E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID))
-		e1000_gate_hw_phy_config_ich8lan(hw, TRUE);
+		e1000_gate_hw_phy_config_ich8lan(hw, true);
 
 	ret_val = e1000_phy_hw_reset_generic(hw);
 	if (ret_val)
@@ -3188,7 +3188,7 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
 /**
  *  e1000_set_lplu_state_pchlan - Set Low Power Link Up state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU state according to the active flag.  For PCH, if OEM write
  *  bit are disabled in the NVM, writing the LPLU bits in the MAC will not set
@@ -3220,7 +3220,7 @@ static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
 /**
  *  e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU D0 state according to the active flag.  When
  *  activating LPLU this function also disables smart speed
@@ -3316,7 +3316,7 @@ static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
 /**
  *  e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state
  *  @hw: pointer to the HW structure
- *  @active: TRUE to enable LPLU, FALSE to disable
+ *  @active: true to enable LPLU, false to disable
  *
  *  Sets the LPLU D3 state according to the active flag.  When
  *  activating LPLU this function also disables smart speed
@@ -4054,7 +4054,7 @@ static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
 	nvm->ops.acquire(hw);
 
 	for (i = 0; i < words; i++) {
-		dev_spec->shadow_ram[offset + i].modified = TRUE;
+		dev_spec->shadow_ram[offset + i].modified = true;
 		dev_spec->shadow_ram[offset + i].value = data[i];
 	}
 
@@ -4203,7 +4203,7 @@ static s32 e1000_update_nvm_checksum_spt(struct e1000_hw *hw)
 
 	/* Great!  Everything worked, we can now clear the cached entries. */
 	for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
-		dev_spec->shadow_ram[i].modified = FALSE;
+		dev_spec->shadow_ram[i].modified = false;
 		dev_spec->shadow_ram[i].value = 0xFFFF;
 	}
 
@@ -4356,7 +4356,7 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
 
 	/* Great!  Everything worked, we can now clear the cached entries. */
 	for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
-		dev_spec->shadow_ram[i].modified = FALSE;
+		dev_spec->shadow_ram[i].modified = false;
 		dev_spec->shadow_ram[i].value = 0xFFFF;
 	}
 
@@ -5009,9 +5009,9 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
 			return ret_val;
 
 		if (kum_cfg & E1000_NVM_K1_ENABLE)
-			dev_spec->nvm_k1_enabled = TRUE;
+			dev_spec->nvm_k1_enabled = true;
 		else
-			dev_spec->nvm_k1_enabled = FALSE;
+			dev_spec->nvm_k1_enabled = false;
 	}
 
 	ctrl = E1000_READ_REG(hw, E1000_CTRL);
@@ -5028,7 +5028,7 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
 		 */
 		if ((hw->mac.type == e1000_pch2lan) &&
 		    !(E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID))
-			e1000_gate_hw_phy_config_ich8lan(hw, TRUE);
+			e1000_gate_hw_phy_config_ich8lan(hw, true);
 	}
 	ret_val = e1000_acquire_swflag_ich8lan(hw);
 
@@ -5537,8 +5537,8 @@ static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw)
  *  @hw: pointer to the HW structure
  *  @state: boolean value used to set the current Kumeran workaround state
  *
- *  If ICH8, set the current Kumeran workaround state (enabled - TRUE
- *  /disabled - FALSE).
+ *  If ICH8, set the current Kumeran workaround state (enabled - true
+ *  /disabled - false).
  **/
 void e1000_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
 						 bool state)
@@ -5769,7 +5769,7 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
 		e1000_gig_downshift_workaround_ich8lan(hw);
 
 	if (hw->mac.type >= e1000_pchlan) {
-		e1000_oem_bits_config_ich8lan(hw, FALSE);
+		e1000_oem_bits_config_ich8lan(hw, false);
 
 		/* Reset PHY to activate OEM bits on 82577/8 */
 		if (hw->mac.type == e1000_pchlan)
diff --git a/sys/dev/e1000/e1000_mac.c b/sys/dev/e1000/e1000_mac.c
index a13572d8dc18..b8b8a4919517 100644
--- a/sys/dev/e1000/e1000_mac.c
+++ b/sys/dev/e1000/e1000_mac.c
@@ -115,13 +115,13 @@ s32 e1000_null_link_info(struct e1000_hw E1000_UNUSEDARG *hw,
 }
 
 /**
- *  e1000_null_mng_mode - No-op function, return FALSE
+ *  e1000_null_mng_mode - No-op function, return false
  *  @hw: pointer to the HW structure
  **/
 bool e1000_null_mng_mode(struct e1000_hw E1000_UNUSEDARG *hw)
 {
 	DEBUGFUNC("e1000_null_mng_mode");
-	return FALSE;
+	return false;
 }
 
 /**
@@ -741,7 +741,7 @@ s32 e1000_check_for_copper_link_generic(struct e1000_hw *hw)
 	if (!link)
 		return E1000_SUCCESS; /* No link detected */
 
-	mac->get_link_status = FALSE;
+	mac->get_link_status = false;
 
 	/* Check if there was DownShift, must be checked
 	 * immediately after link-up
@@ -804,7 +804,7 @@ s32 e1000_check_for_fiber_link_generic(struct e1000_hw *hw)
 	if ((ctrl & E1000_CTRL_SWDPIN1) && !(status & E1000_STATUS_LU) &&
 	    !(rxcw & E1000_RXCW_C)) {
 		if (!mac->autoneg_failed) {
-			mac->autoneg_failed = TRUE;
+			mac->autoneg_failed = true;
 			return E1000_SUCCESS;
 		}
 		DEBUGOUT("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
@@ -833,7 +833,7 @@ s32 e1000_check_for_fiber_link_generic(struct e1000_hw *hw)
 		E1000_WRITE_REG(hw, E1000_TXCW, mac->txcw);
 		E1000_WRITE_REG(hw, E1000_CTRL, (ctrl & ~E1000_CTRL_SLU));
 
-		mac->serdes_has_link = TRUE;
+		mac->serdes_has_link = true;
 	}
 
 	return E1000_SUCCESS;
@@ -869,7 +869,7 @@ s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
 	/* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
 	if (!(status & E1000_STATUS_LU) && !(rxcw & E1000_RXCW_C)) {
 		if (!mac->autoneg_failed) {
-			mac->autoneg_failed = TRUE;
+			mac->autoneg_failed = true;
 			return E1000_SUCCESS;
 		}
 		DEBUGOUT("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
@@ -898,7 +898,7 @@ s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
 		E1000_WRITE_REG(hw, E1000_TXCW, mac->txcw);
 		E1000_WRITE_REG(hw, E1000_CTRL, (ctrl & ~E1000_CTRL_SLU));
 
-		mac->serdes_has_link = TRUE;
+		mac->serdes_has_link = true;
 	} else if (!(E1000_TXCW_ANE & E1000_READ_REG(hw, E1000_TXCW))) {
 		/* If we force link for non-auto-negotiation switch, check
 		 * link status based on MAC synchronization for internal
@@ -909,11 +909,11 @@ s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
 		rxcw = E1000_READ_REG(hw, E1000_RXCW);
 		if (rxcw & E1000_RXCW_SYNCH) {
 			if (!(rxcw & E1000_RXCW_IV)) {
-				mac->serdes_has_link = TRUE;
+				mac->serdes_has_link = true;
 				DEBUGOUT("SERDES: Link up - forced.\n");
 			}
 		} else {
-			mac->serdes_has_link = FALSE;
+			mac->serdes_has_link = false;
 			DEBUGOUT("SERDES: Link down - force failed.\n");
 		}
 	}
@@ -926,18 +926,18 @@ s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
 			rxcw = E1000_READ_REG(hw, E1000_RXCW);
 			if (rxcw & E1000_RXCW_SYNCH) {
 				if (!(rxcw & E1000_RXCW_IV)) {
-					mac->serdes_has_link = TRUE;
+					mac->serdes_has_link = true;
 					DEBUGOUT("SERDES: Link up - autoneg completed successfully.\n");
 				} else {
-					mac->serdes_has_link = FALSE;
+					mac->serdes_has_link = false;
 					DEBUGOUT("SERDES: Link down - invalid codewords detected in autoneg.\n");
 				}
 			} else {
-				mac->serdes_has_link = FALSE;
+				mac->serdes_has_link = false;
 				DEBUGOUT("SERDES: Link down - no sync.\n");
 			}
 		} else {
-			mac->serdes_has_link = FALSE;
+			mac->serdes_has_link = false;
 			DEBUGOUT("SERDES: Link down - autoneg failed\n");
 		}
 	}
@@ -1140,7 +1140,7 @@ s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
 
 	DEBUGFUNC("e1000_poll_fiber_serdes_link_generic");
 
-	/* If we have a signal (the cable is plugged in, or assumed TRUE for
+	/* If we have a signal (the cable is plugged in, or assumed true for
 	 * serdes media) then poll for a "Link-Up" indication in the Device
 	 * Status Register.  Time-out if a link isn't seen in 500 milliseconds
 	 * seconds (Auto-negotiation should complete in less than 500
@@ -1154,7 +1154,7 @@ s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
 	}
 	if (i == FIBER_LINK_UP_LIMIT) {
 		DEBUGOUT("Never got a valid link from auto-neg!!!\n");
-		mac->autoneg_failed = TRUE;
+		mac->autoneg_failed = true;
 		/* AutoNeg failed to achieve a link, so we'll call
 		 * mac->check_for_link. This routine will force the
 		 * link up if we detect a signal. This will allow us to
@@ -1165,9 +1165,9 @@ s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
 			DEBUGOUT("Error while checking for link\n");
 			return ret_val;
 		}
-		mac->autoneg_failed = FALSE;
+		mac->autoneg_failed = false;
 	} else {
-		mac->autoneg_failed = FALSE;
+		mac->autoneg_failed = false;
 		DEBUGOUT("Valid Link Found\n");
 	}
 
@@ -2074,7 +2074,7 @@ void e1000_reset_adaptive_generic(struct e1000_hw *hw)
 	mac->ifs_step_size = IFS_STEP;
 	mac->ifs_ratio = IFS_RATIO;
 
-	mac->in_ifs_mode = FALSE;
+	mac->in_ifs_mode = false;
 	E1000_WRITE_REG(hw, E1000_AIT, 0);
 }
 
@@ -2098,7 +2098,7 @@ void e1000_update_adaptive_generic(struct e1000_hw *hw)
 
 	if ((mac->collision_delta * mac->ifs_ratio) > mac->tx_packet_delta) {
 		if (mac->tx_packet_delta > MIN_NUM_XMITS) {
-			mac->in_ifs_mode = TRUE;
+			mac->in_ifs_mode = true;
 			if (mac->current_ifs_val < mac->ifs_max_val) {
 				if (!mac->current_ifs_val)
 					mac->current_ifs_val = mac->ifs_min_val;
@@ -2113,7 +2113,7 @@ void e1000_update_adaptive_generic(struct e1000_hw *hw)
 		if (mac->in_ifs_mode &&
 		    (mac->tx_packet_delta <= MIN_NUM_XMITS)) {
 			mac->current_ifs_val = 0;
-			mac->in_ifs_mode = FALSE;
+			mac->in_ifs_mode = false;
 			E1000_WRITE_REG(hw, E1000_AIT, 0);
 		}
 	}
@@ -2235,17 +2235,17 @@ s32 e1000_get_hw_semaphore(struct e1000_hw *hw)
 	/* In rare circumstances, the SW semaphore may already be held
 	 * unintentionally. Clear the semaphore once before giving up.
 	 */
-         if (hw->dev_spec._82575.clear_semaphore_once) {
-         	hw->dev_spec._82575.clear_semaphore_once = FALSE;
-         	e1000_put_hw_semaphore(hw);
-         	for (i = 0; i < fw_timeout; i++) {
-         		swsm = E1000_READ_REG(hw, E1000_SWSM);
-         		if (!(swsm & E1000_SWSM_SMBI))
-         			break;
+	if (hw->dev_spec._82575.clear_semaphore_once) {
+	 	hw->dev_spec._82575.clear_semaphore_once = false;
+		e1000_put_hw_semaphore(hw);
+		for (i = 0; i < fw_timeout; i++) {
+			swsm = E1000_READ_REG(hw, E1000_SWSM);
+	 		if (!(swsm & E1000_SWSM_SMBI))
+	 			break;
 
-         		usec_delay(50);
-         	}
-         }
+	 		usec_delay(50);
+	 	}
+	 }
 
 	/* Get the FW semaphore. */
 	for (i = 0; i < fw_timeout; i++) {
diff --git a/sys/dev/e1000/e1000_manage.c b/sys/dev/e1000/e1000_manage.c
index b5ad5815d5ee..08edf1b65606 100644
--- a/sys/dev/e1000/e1000_manage.c
+++ b/sys/dev/e1000/e1000_manage.c
@@ -108,8 +108,8 @@ s32 e1000_mng_enable_host_if_generic(struct e1000_hw *hw)
  *  e1000_check_mng_mode_generic - Generic check management mode
  *  @hw: pointer to the HW structure
  *
- *  Reads the firmware semaphore register and returns TRUE (>0) if
- *  manageability is enabled, else FALSE (0).
+ *  Reads the firmware semaphore register and returns true (>0) if
+ *  manageability is enabled, else false (0).
  **/
 bool e1000_check_mng_mode_generic(struct e1000_hw *hw)
 {
@@ -139,11 +139,11 @@ bool e1000_enable_tx_pkt_filtering_generic(struct e1000_hw *hw)
 
 	DEBUGFUNC("e1000_enable_tx_pkt_filtering_generic");
 
-	hw->mac.tx_pkt_filtering = TRUE;
+	hw->mac.tx_pkt_filtering = true;
 
 	/* No manageability, no filtering */
 	if (!hw->mac.ops.check_mng_mode(hw)) {
-		hw->mac.tx_pkt_filtering = FALSE;
+		hw->mac.tx_pkt_filtering = false;
 		return hw->mac.tx_pkt_filtering;
 	}
 
@@ -152,7 +152,7 @@ bool e1000_enable_tx_pkt_filtering_generic(struct e1000_hw *hw)
 	 */
 	ret_val = e1000_mng_enable_host_if_generic(hw);
 	if (ret_val != E1000_SUCCESS) {
-		hw->mac.tx_pkt_filtering = FALSE;
+		hw->mac.tx_pkt_filtering = false;
 		return hw->mac.tx_pkt_filtering;
 	}
 
@@ -171,13 +171,13 @@ bool e1000_enable_tx_pkt_filtering_generic(struct e1000_hw *hw)
 	 * take the safe route of assuming Tx filtering is enabled.
 	 */
 	if ((hdr_csum != csum) || (hdr->signature != E1000_IAMT_SIGNATURE)) {
-		hw->mac.tx_pkt_filtering = TRUE;
+		hw->mac.tx_pkt_filtering = true;
 		return hw->mac.tx_pkt_filtering;
 	}
 
 	/* Cookie area is valid, make the final check for filtering. */
 	if (!(hdr->status & E1000_MNG_DHCP_COOKIE_STATUS_PARSING))
-		hw->mac.tx_pkt_filtering = FALSE;
+		hw->mac.tx_pkt_filtering = false;
 
 	return hw->mac.tx_pkt_filtering;
 }
@@ -348,12 +348,12 @@ bool e1000_enable_mng_pass_thru(struct e1000_hw *hw)
 	DEBUGFUNC("e1000_enable_mng_pass_thru");
 
 	if (!hw->mac.asf_firmware_present)
-		return FALSE;
+		return false;
 
 	manc = E1000_READ_REG(hw, E1000_MANC);
 
 	if (!(manc & E1000_MANC_RCV_TCO_EN))
-		return FALSE;
+		return false;
 
 	if (hw->mac.has_fwsm) {
 		fwsm = E1000_READ_REG(hw, E1000_FWSM);
@@ -362,7 +362,7 @@ bool e1000_enable_mng_pass_thru(struct e1000_hw *hw)
 		if (!(factps & E1000_FACTPS_MNGCG) &&
 		    ((fwsm & E1000_FWSM_MODE_MASK) ==
 		     (e1000_mng_mode_pt << E1000_FWSM_MODE_SHIFT)))
-			return TRUE;
+			return true;
 	} else if ((hw->mac.type == e1000_82574) ||
 		   (hw->mac.type == e1000_82583)) {
 		u16 data;
@@ -371,18 +371,18 @@ bool e1000_enable_mng_pass_thru(struct e1000_hw *hw)
 		factps = E1000_READ_REG(hw, E1000_FACTPS);
 		ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
 		if (ret_val)
-			return FALSE;
+			return false;
 
 		if (!(factps & E1000_FACTPS_MNGCG) &&
 		    ((data & E1000_NVM_INIT_CTRL2_MNGM) ==
 		     (e1000_mng_mode_pt << 13)))
-			return TRUE;
+			return true;
 	} else if ((manc & E1000_MANC_SMBUS_EN) &&
 		   !(manc & E1000_MANC_ASF_EN)) {
-		return TRUE;
+		return true;
 	}
 
-	return FALSE;
+	return false;
 }
 
 /**
diff --git a/sys/dev/e1000/e1000_mbx.c b/sys/dev/e1000/e1000_mbx.c
index 3fc3811757f7..970b9ae0e01a 100644
--- a/sys/dev/e1000/e1000_mbx.c
+++ b/sys/dev/e1000/e1000_mbx.c
@@ -404,7 +404,7 @@ static s32 e1000_check_for_ack_vf(struct e1000_hw *hw,
  *  @hw: pointer to the HW structure
  *  @mbx_id: id of mailbox to check
  *
- *  returns TRUE if the PF has set the reset done bit or else FALSE
+ *  returns true if the PF has set the reset done bit or else false
  **/
 static s32 e1000_check_for_rst_vf(struct e1000_hw *hw,
 				  u16 E1000_UNUSEDARG mbx_id)
diff --git a/sys/dev/e1000/e1000_mbx.h b/sys/dev/e1000/e1000_mbx.h
index bdfc14bf8038..c038001abe08 100644
--- a/sys/dev/e1000/e1000_mbx.h
+++ b/sys/dev/e1000/e1000_mbx.h
@@ -63,7 +63,7 @@
 #define E1000_VFMAILBOX_SIZE	16 /* 16 32 bit words - 64 bytes */
 
 /* If it's a E1000_VF_* msg then it originates in the VF and is sent to the
- * PF.  The reverse is TRUE if it is E1000_PF_*.
+ * PF.  The reverse is true if it is E1000_PF_*.
  * Message ACK's are the value or'd with 0xF0000000
  */
 /* Msgs below or'd with this are the ACK */
diff --git a/sys/dev/e1000/e1000_osdep.h b/sys/dev/e1000/e1000_osdep.h
index ec0858d3ad84..5e19ebb0aeee 100644
--- a/sys/dev/e1000/e1000_osdep.h
+++ b/sys/dev/e1000/e1000_osdep.h
@@ -115,8 +115,6 @@ safe_pause_ms(int x) {
 #define DEBUGFUNC(F)			DEBUGOUT(F "\n")
 
 #define STATIC			static
-#define FALSE			0
-#define TRUE			1
 #define CMD_MEM_WRT_INVALIDATE	0x0010  /* BIT_4 */
 #define PCI_COMMAND_REGISTER	PCIR_COMMAND
 
diff --git a/sys/dev/e1000/e1000_phy.c b/sys/dev/e1000/e1000_phy.c
index 2eae3acbe500..e5fd942464b6 100644
--- a/sys/dev/e1000/e1000_phy.c
+++ b/sys/dev/e1000/e1000_phy.c
@@ -776,7 +776,7 @@ static s32 __e1000_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data,
  **/
 s32 e1000_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_phy_reg_igp(hw, offset, data, FALSE);
+	return __e1000_read_phy_reg_igp(hw, offset, data, false);
 }
 
 /**
@@ -790,7 +790,7 @@ s32 e1000_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
  **/
 s32 e1000_read_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_phy_reg_igp(hw, offset, data, TRUE);
+	return __e1000_read_phy_reg_igp(hw, offset, data, true);
 }
 
 /**
@@ -844,7 +844,7 @@ static s32 __e1000_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data,
  **/
 s32 e1000_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_phy_reg_igp(hw, offset, data, FALSE);
+	return __e1000_write_phy_reg_igp(hw, offset, data, false);
 }
 
 /**
@@ -858,7 +858,7 @@ s32 e1000_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
  **/
 s32 e1000_write_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_phy_reg_igp(hw, offset, data, TRUE);
+	return __e1000_write_phy_reg_igp(hw, offset, data, true);
 }
 
 /**
@@ -918,7 +918,7 @@ static s32 __e1000_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data,
  **/
 s32 e1000_read_kmrn_reg_generic(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_kmrn_reg(hw, offset, data, FALSE);
+	return __e1000_read_kmrn_reg(hw, offset, data, false);
 }
 
 /**
@@ -933,7 +933,7 @@ s32 e1000_read_kmrn_reg_generic(struct e1000_hw *hw, u32 offset, u16 *data)
  **/
 s32 e1000_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_kmrn_reg(hw, offset, data, TRUE);
+	return __e1000_read_kmrn_reg(hw, offset, data, true);
 }
 
 /**
@@ -989,7 +989,7 @@ static s32 __e1000_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data,
  **/
 s32 e1000_write_kmrn_reg_generic(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_kmrn_reg(hw, offset, data, FALSE);
+	return __e1000_write_kmrn_reg(hw, offset, data, false);
 }
 
 /**
@@ -1003,7 +1003,7 @@ s32 e1000_write_kmrn_reg_generic(struct e1000_hw *hw, u32 offset, u16 data)
  **/
 s32 e1000_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_kmrn_reg(hw, offset, data, TRUE);
+	return __e1000_write_kmrn_reg(hw, offset, data, true);
 }
 
 /**
@@ -1390,7 +1390,7 @@ s32 e1000_copper_link_setup_igp(struct e1000_hw *hw)
 	 */
 	if (phy->type == e1000_phy_igp) {
 		/* disable lplu d3 during driver init */
-		ret_val = hw->phy.ops.set_d3_lplu_state(hw, FALSE);
+		ret_val = hw->phy.ops.set_d3_lplu_state(hw, false);
 		if (ret_val) {
 			DEBUGOUT("Error Disabling LPLU D3\n");
 			return ret_val;
@@ -1399,7 +1399,7 @@ s32 e1000_copper_link_setup_igp(struct e1000_hw *hw)
 
 	/* disable lplu d0 during driver init */
 	if (hw->phy.ops.set_d0_lplu_state) {
-		ret_val = hw->phy.ops.set_d0_lplu_state(hw, FALSE);
+		ret_val = hw->phy.ops.set_d0_lplu_state(hw, false);
 		if (ret_val) {
 			DEBUGOUT("Error Disabling LPLU D0\n");
 			return ret_val;
@@ -1678,7 +1678,7 @@ s32 e1000_copper_link_autoneg(struct e1000_hw *hw)
 		}
 	}
 
-	hw->mac.get_link_status = TRUE;
+	hw->mac.get_link_status = true;
 
 	return ret_val;
 }
@@ -1863,7 +1863,7 @@ s32 e1000_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 			return ret_val;
 
 		if (!link) {
-			bool reset_dsp = TRUE;
+			bool reset_dsp = true;
 
 			switch (hw->phy.id) {
 			case I347AT4_E_PHY_ID:
@@ -1872,11 +1872,11 @@ s32 e1000_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 			case M88E1543_E_PHY_ID:
 			case M88E1512_E_PHY_ID:
 			case I210_I_PHY_ID:
-				reset_dsp = FALSE;
+				reset_dsp = false;
 				break;
 			default:
 				if (hw->phy.type != e1000_phy_m88)
-					reset_dsp = FALSE;
+					reset_dsp = false;
 				break;
 			}
 
@@ -2075,7 +2075,7 @@ void e1000_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl)
  *  Success returns 0, Failure returns 1
  *
  *  The low power link up (lplu) state is set to the power management level D3
- *  and SmartSpeed is disabled when active is TRUE, else clear lplu for D3
+ *  and SmartSpeed is disabled when active is true, else clear lplu for D3
  *  and enable Smartspeed.  LPLU and Smartspeed are mutually exclusive.  LPLU
  *  is used during Dx states where the power conservation is most important.
  *  During driver activity, SmartSpeed should be enabled so performance is
@@ -2190,7 +2190,7 @@ s32 e1000_check_downshift_generic(struct e1000_hw *hw)
 		break;
 	default:
 		/* speed downshift not supported */
-		phy->speed_downgraded = FALSE;
+		phy->speed_downgraded = false;
 		return E1000_SUCCESS;
 	}
 
@@ -2723,7 +2723,7 @@ s32 e1000_get_phy_info_igp(struct e1000_hw *hw)
 		return -E1000_ERR_CONFIG;
 	}
 
-	phy->polarity_correction = TRUE;
+	phy->polarity_correction = true;
 
 	ret_val = e1000_check_polarity_igp(hw);
 	if (ret_val)
@@ -3131,7 +3131,7 @@ s32 e1000_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data)
 	/* Page 800 works differently than the rest so it has its own func */
 	if (page == BM_WUC_PAGE) {
 		ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
-							 FALSE, false);
+							 false, false);
 		goto release;
 	}
 
@@ -3191,7 +3191,7 @@ s32 e1000_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data)
 	/* Page 800 works differently than the rest so it has its own func */
 	if (page == BM_WUC_PAGE) {
 		ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
-							 TRUE, FALSE);
+							 true, false);
 		goto release;
 	}
 
@@ -3250,7 +3250,7 @@ s32 e1000_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data)
 	/* Page 800 works differently than the rest so it has its own func */
 	if (page == BM_WUC_PAGE) {
 		ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
-							 TRUE, FALSE);
+							 true, false);
 		goto release;
 	}
 
@@ -3295,7 +3295,7 @@ s32 e1000_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data)
 	/* Page 800 works differently than the rest so it has its own func */
 	if (page == BM_WUC_PAGE) {
 		ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
-							 FALSE, false);
+							 false, false);
 		goto release;
 	}
 
@@ -3430,7 +3430,7 @@ s32 e1000_disable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg)
  *  Steps 1 and 2 are done by e1000_enable_phy_wakeup_reg_access_bm() and
  *  step 5 is done by e1000_disable_phy_wakeup_reg_access_bm().
  *
- *  Assumes semaphore is already acquired.  When page_set==TRUE, assumes
+ *  Assumes semaphore is already acquired.  When page_set==true, assumes
  *  the PHY page is set to BM_WUC_PAGE (i.e. a function in the call stack
  *  is responsible for calls to e1000_[enable|disable]_phy_wakeup_reg_bm()).
  **/
@@ -3556,13 +3556,13 @@ static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data,
 	/* Page 800 works differently than the rest so it has its own func */
 	if (page == BM_WUC_PAGE) {
 		ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
-							 TRUE, page_set);
+							 true, page_set);
 		goto out;
 	}
 
 	if (page > 0 && page < HV_INTC_FC_PAGE_START) {
 		ret_val = e1000_access_phy_debug_regs_hv(hw, offset,
-							 data, TRUE);
+							 data, true);
 		goto out;
 	}
 
@@ -3606,7 +3606,7 @@ static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data,
  **/
 s32 e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_phy_reg_hv(hw, offset, data, FALSE, false);
+	return __e1000_read_phy_reg_hv(hw, offset, data, false, false);
 }
 
 /**
@@ -3620,7 +3620,7 @@ s32 e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data)
  **/
 s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_phy_reg_hv(hw, offset, data, TRUE, FALSE);
+	return __e1000_read_phy_reg_hv(hw, offset, data, true, false);
 }
 
 /**
@@ -3634,7 +3634,7 @@ s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 *data)
  **/
 s32 e1000_read_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	return __e1000_read_phy_reg_hv(hw, offset, data, TRUE, true);
+	return __e1000_read_phy_reg_hv(hw, offset, data, true, true);
 }
 
 /**
@@ -3666,13 +3666,13 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data,
 	/* Page 800 works differently than the rest so it has its own func */
 	if (page == BM_WUC_PAGE) {
 		ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
-							 FALSE, page_set);
+							 false, page_set);
 		goto out;
 	}
 
 	if (page > 0 && page < HV_INTC_FC_PAGE_START) {
 		ret_val = e1000_access_phy_debug_regs_hv(hw, offset,
-							 &data, FALSE);
+							 &data, false);
 		goto out;
 	}
 
@@ -3691,7 +3691,7 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data,
 			u16 data2 = 0x7EFF;
 			ret_val = e1000_access_phy_debug_regs_hv(hw,
 								 (1 << 6) | 0x3,
-								 &data2, FALSE);
+								 &data2, false);
 			if (ret_val)
 				goto out;
 		}
@@ -3732,7 +3732,7 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data,
  **/
 s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_phy_reg_hv(hw, offset, data, FALSE, false);
+	return __e1000_write_phy_reg_hv(hw, offset, data, false, false);
 }
 
 /**
@@ -3746,7 +3746,7 @@ s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data)
  **/
 s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_phy_reg_hv(hw, offset, data, TRUE, FALSE);
+	return __e1000_write_phy_reg_hv(hw, offset, data, true, false);
 }
 
 /**
@@ -3760,7 +3760,7 @@ s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 data)
  **/
 s32 e1000_write_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	return __e1000_write_phy_reg_hv(hw, offset, data, TRUE, true);
+	return __e1000_write_phy_reg_hv(hw, offset, data, true, true);
 }
 
 /**
@@ -3975,7 +3975,7 @@ s32 e1000_get_phy_info_82577(struct e1000_hw *hw)
 		return -E1000_ERR_CONFIG;
 	}
 
-	phy->polarity_correction = TRUE;
+	phy->polarity_correction = true;
 
 	ret_val = e1000_check_polarity_82577(hw);
 	if (ret_val)
@@ -4118,7 +4118,7 @@ s32 e1000_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data)
 s32 e1000_read_phy_reg_mphy(struct e1000_hw *hw, u32 address, u32 *data)
 {
 	u32 mphy_ctrl = 0;
-	bool locked = FALSE;
+	bool locked = false;
 	bool ready;
 
 	DEBUGFUNC("e1000_read_phy_reg_mphy");
@@ -4131,7 +4131,7 @@ s32 e1000_read_phy_reg_mphy(struct e1000_hw *hw, u32 address, u32 *data)
 	/* Check if mPHY access is disabled and enable it if so */
 	mphy_ctrl = E1000_READ_REG(hw, E1000_MPHY_ADDR_CTRL);
 	if (mphy_ctrl & E1000_MPHY_DIS_ACCESS) {
-		locked = TRUE;
+		locked = true;
 		ready = e1000_is_mphy_ready(hw);
 		if (!ready)
 			return -E1000_ERR_PHY;
@@ -4180,7 +4180,7 @@ s32 e1000_write_phy_reg_mphy(struct e1000_hw *hw, u32 address, u32 data,
 			     bool line_override)
 {
 	u32 mphy_ctrl = 0;
-	bool locked = FALSE;
+	bool locked = false;
 	bool ready;
 
 	DEBUGFUNC("e1000_write_phy_reg_mphy");
@@ -4193,7 +4193,7 @@ s32 e1000_write_phy_reg_mphy(struct e1000_hw *hw, u32 address, u32 data,
 	/* Check if mPHY access is disabled and enable it if so */
 	mphy_ctrl = E1000_READ_REG(hw, E1000_MPHY_ADDR_CTRL);
 	if (mphy_ctrl & E1000_MPHY_DIS_ACCESS) {
-		locked = TRUE;
+		locked = true;
 		ready = e1000_is_mphy_ready(hw);
 		if (!ready)
 			return -E1000_ERR_PHY;
@@ -4242,7 +4242,7 @@ bool e1000_is_mphy_ready(struct e1000_hw *hw)
 {
 	u16 retry_count = 0;
 	u32 mphy_ctrl = 0;
-	bool ready = FALSE;
+	bool ready = false;
 
 	while (retry_count < 2) {
 		mphy_ctrl = E1000_READ_REG(hw, E1000_MPHY_ADDR_CTRL);
@@ -4251,7 +4251,7 @@ bool e1000_is_mphy_ready(struct e1000_hw *hw)
 			retry_count++;
 			continue;
 		}
-		ready = TRUE;
+		ready = true;
 		break;
 	}
 
diff --git a/sys/dev/e1000/e1000_vf.c b/sys/dev/e1000/e1000_vf.c
index 4b73bb9709c1..12c89a089735 100644
--- a/sys/dev/e1000/e1000_vf.c
+++ b/sys/dev/e1000/e1000_vf.c
@@ -104,11 +104,11 @@ static s32 e1000_init_mac_params_vf(struct e1000_hw *hw)
 	hw->phy.media_type = e1000_media_type_unknown;
 
 	/* No ASF features for the VF driver */
-	mac->asf_firmware_present = FALSE;
+	mac->asf_firmware_present = false;
 	/* ARC subsystem not supported */
-	mac->arc_subsystem_valid = FALSE;
+	mac->arc_subsystem_valid = false;
 	/* Disable adaptive IFS mode so the generic funcs don't do anything */
-	mac->adaptive_ifs = FALSE;
+	mac->adaptive_ifs = false;
 	/* VF's have no MTA Registers - PF feature only */
 	mac->mta_reg_count = 128;
 	/* VF's have no access to RAR entries  */
@@ -442,7 +442,7 @@ void e1000_update_mc_addr_list_vf(struct e1000_hw *hw,
  *  e1000_vfta_set_vf - Set/Unset vlan filter table address
  *  @hw: pointer to the HW structure
  *  @vid: determines the vfta register and bit to set/unset
- *  @set: if TRUE then set bit, else clear bit
+ *  @set: if true then set bit, else clear bit
  **/
 void e1000_vfta_set_vf(struct e1000_hw *hw, u16 vid, bool set)
 {
@@ -450,7 +450,7 @@ void e1000_vfta_set_vf(struct e1000_hw *hw, u16 vid, bool set)
 
 	msgbuf[0] = E1000_VF_SET_VLAN;
 	msgbuf[1] = vid;
-	/* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
+	/* Setting the 8 bit field MSG INFO to true indicates "add" */
 	if (set)
 		msgbuf[0] |= E1000_VF_SET_VLAN_ADD;
 
@@ -549,7 +549,7 @@ static s32 e1000_check_for_link_vf(struct e1000_hw *hw)
 
 	/* If we were hit with a reset or timeout drop the link */
 	if (!mbx->ops.check_for_rst(hw, 0) || !mbx->timeout)
-		mac->get_link_status = TRUE;
+		mac->get_link_status = true;
 
 	if (!mac->get_link_status)
 		goto out;
@@ -581,7 +581,7 @@ static s32 e1000_check_for_link_vf(struct e1000_hw *hw)
 
 	/* if we passed all the tests above then the link is up and we no
 	 * longer need to check for link */
-	mac->get_link_status = FALSE;
+	mac->get_link_status = false;
 
 out:
 	return ret_val;
diff --git a/sys/dev/e1000/e1000_vf.h b/sys/dev/e1000/e1000_vf.h
index 5dfcdb4ee659..abf62f676a6f 100644
--- a/sys/dev/e1000/e1000_vf.h
+++ b/sys/dev/e1000/e1000_vf.h
@@ -160,7 +160,7 @@ enum e1000_mac_type {
 	e1000_undefined = 0,
 	e1000_vfadapt,
 	e1000_vfadapt_i350,
-	e1000_num_macs  /* List is 1-based, so subtract 1 for TRUE count. */
+	e1000_num_macs  /* List is 1-based, so subtract 1 for true count. */
 };
 
 struct e1000_vf_stats {
diff --git a/sys/dev/e1000/em_txrx.c b/sys/dev/e1000/em_txrx.c
index 11f6662c5b79..cc5313a749bd 100644
--- a/sys/dev/e1000/em_txrx.c
+++ b/sys/dev/e1000/em_txrx.c
@@ -184,7 +184,7 @@ em_tso_setup(struct adapter *adapter, if_pkt_info_t pi, u32 *txd_upper, u32 *txd
 				E1000_TXD_CMD_IP |	/* Do IP csum */
 				E1000_TXD_CMD_TCP |	/* Do TCP checksum */
 				      (pi->ipi_len - hdr_len)); /* Total len */
-	txr->tx_tso = TRUE;
+	txr->tx_tso = true;
 
 	if (++cur == scctx->isc_ntxd[0]) {
 		cur = 0;
@@ -318,7 +318,7 @@ em_isc_txd_encap(void *arg, if_pkt_info_t pi)
 	txd_flags = pi->ipi_flags & IPI_TX_INTR ? E1000_TXD_CMD_RS : 0;
 	i = first = pi->ipi_pidx;
 	do_tso = (csum_flags & CSUM_TSO);
-	tso_desc = FALSE;
+	tso_desc = false;
 	ntxd = scctx->isc_ntxd[0];
 	/*
 	 * TSO Hardware workaround, if this packet is not
@@ -326,16 +326,16 @@ em_isc_txd_encap(void *arg, if_pkt_info_t pi)
 	 * it follows a TSO burst, then we need to add a
 	 * sentinel descriptor to prevent premature writeback.
 	 */
-	if ((!do_tso) && (txr->tx_tso == TRUE)) {
+	if ((!do_tso) && (txr->tx_tso == true)) {
 		if (nsegs == 1)
-			tso_desc = TRUE;
-		txr->tx_tso = FALSE;
+			tso_desc = true;
+		txr->tx_tso = false;
 	}
 
 	/* Do hardware assists */
 	if (do_tso) {
 		i = em_tso_setup(sc, pi, &txd_upper, &txd_lower);
-		tso_desc = TRUE;
+		tso_desc = true;
 	} else if (csum_flags & EM_CSUM_OFFLOAD) {
 		i = em_transmit_checksum_setup(sc, pi, &txd_upper, &txd_lower);
 	}
diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c
index 6942fd47b471..89ccb30ce922 100644
--- a/sys/dev/e1000/if_em.c
+++ b/sys/dev/e1000/if_em.c
@@ -509,12 +509,12 @@ SYSCTL_INT(_hw_em, OID_AUTO, rx_abs_int_delay, CTLFLAG_RDTUN,
     &em_rx_abs_int_delay_dflt, 0,
     "Default receive interrupt delay limit in usecs");
 
-static int em_smart_pwr_down = FALSE;
+static int em_smart_pwr_down = false;
 SYSCTL_INT(_hw_em, OID_AUTO, smart_pwr_down, CTLFLAG_RDTUN, &em_smart_pwr_down,
     0, "Set to true to leave smart power down enabled on newer adapters");
 
 /* Controls whether promiscuous also shows bad packets */
-static int em_debug_sbp = FALSE;
+static int em_debug_sbp = false;
 SYSCTL_INT(_hw_em, OID_AUTO, sbp, CTLFLAG_RDTUN, &em_debug_sbp, 0,
     "Show bad packets in promiscuous mode");
 
@@ -967,7 +967,7 @@ em_if_attach_pre(if_ctx_t ctx)
 	}
 
 	/* Do Shared Code initialization */
-	error = e1000_setup_init_funcs(hw, TRUE);
+	error = e1000_setup_init_funcs(hw, true);
 	if (error) {
 		device_printf(dev, "Setup of Shared code failed, error %d\n",
 		    error);
@@ -1002,17 +1002,17 @@ em_if_attach_pre(if_ctx_t ctx)
 	    DEFAULT_ITR);
 
 	hw->mac.autoneg = DO_AUTO_NEG;
-	hw->phy.autoneg_wait_to_complete = FALSE;
+	hw->phy.autoneg_wait_to_complete = false;
 	hw->phy.autoneg_advertised = AUTONEG_ADV_DEFAULT;
 
 	if (hw->mac.type < em_mac_min) {
-		e1000_init_script_state_82541(hw, TRUE);
-		e1000_set_tbi_compatibility_82543(hw, TRUE);
+		e1000_init_script_state_82541(hw, true);
+		e1000_set_tbi_compatibility_82543(hw, true);
 	}
 	/* Copper options */
 	if (hw->phy.media_type == e1000_media_type_copper) {
 		hw->phy.mdix = AUTO_ALL_MODES;
-		hw->phy.disable_polarity_correction = FALSE;
+		hw->phy.disable_polarity_correction = false;
 		hw->phy.ms_type = EM_MASTER_SLAVE;
 	}
 
@@ -1094,7 +1094,7 @@ em_if_attach_pre(if_ctx_t ctx)
 	}
 
 	/* Disable ULP support */
-	e1000_disable_ulp_lpt_lp(hw, TRUE);
+	e1000_disable_ulp_lpt_lp(hw, true);
 
 	/*
 	 * Get Wake-on-Lan and Management info for later use
@@ -1304,7 +1304,7 @@ em_if_init(if_ctx_t ctx)
 	 * the interface continues to function.
 	 */
 	if (adapter->hw.mac.type == e1000_82571) {
-		e1000_set_laa_state_82571(&adapter->hw, TRUE);
+		e1000_set_laa_state_82571(&adapter->hw, true);
 		e1000_rar_set(&adapter->hw, adapter->hw.mac.addr,
 		    E1000_RAR_ENTRIES - 1);
 	}
@@ -1376,9 +1376,9 @@ em_if_init(if_ctx_t ctx)
 	if (adapter->hw.mac.type >= igb_mac_min &&
 	    adapter->hw.phy.media_type == e1000_media_type_copper) {
 		if (adapter->hw.mac.type == e1000_i354)
-			e1000_set_eee_i354(&adapter->hw, TRUE, TRUE);
+			e1000_set_eee_i354(&adapter->hw, true, true);
 		else
-			e1000_set_eee_i350(&adapter->hw, TRUE, TRUE);
+			e1000_set_eee_i350(&adapter->hw, true, true);
 	}
 }
 
@@ -1621,7 +1621,7 @@ em_if_media_change(if_ctx_t ctx)
 		adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 		break;
 	case IFM_100_TX:
-		adapter->hw.mac.autoneg = FALSE;
+		adapter->hw.mac.autoneg = false;
 		adapter->hw.phy.autoneg_advertised = 0;
 		if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
 			adapter->hw.mac.forced_speed_duplex = ADVERTISE_100_FULL;
@@ -1629,7 +1629,7 @@ em_if_media_change(if_ctx_t ctx)
 			adapter->hw.mac.forced_speed_duplex = ADVERTISE_100_HALF;
 		break;
 	case IFM_10_T:
-		adapter->hw.mac.autoneg = FALSE;
+		adapter->hw.mac.autoneg = false;
 		adapter->hw.phy.autoneg_advertised = 0;
 		if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
 			adapter->hw.mac.forced_speed_duplex = ADVERTISE_10_FULL;
@@ -1794,7 +1794,7 @@ em_if_update_admin_status(if_ctx_t ctx)
 			if (link_check) /* ESB2 fix */
 				e1000_cfg_on_link_up(hw);
 		} else {
-			link_check = TRUE;
+			link_check = true;
 		}
 		break;
 	case e1000_media_type_fiber:
@@ -2629,7 +2629,7 @@ em_reset(if_ctx_t ctx)
 	else
 		hw->fc.pause_time = EM_FC_PAUSE_TIME;
 
-	hw->fc.send_xon = TRUE;
+	hw->fc.send_xon = true;
 
 	/* Device specific overrides/settings */
 	switch (hw->mac.type) {
@@ -2701,7 +2701,7 @@ em_reset(if_ctx_t ctx)
 		em_disable_aspm(adapter);
 	}
 	if (adapter->flags & IGB_MEDIA_RESET) {
-		e1000_setup_init_funcs(hw, TRUE);
+		e1000_setup_init_funcs(hw, true);
 		e1000_get_bus_info(hw);
 		adapter->flags &= ~IGB_MEDIA_RESET;
 	}
@@ -3377,9 +3377,9 @@ em_initialize_receive_unit(if_ctx_t ctx)
 		}		
 	} else if (hw->mac.type >= e1000_pch2lan) {
 		if (if_getmtu(ifp) > ETHERMTU)
-			e1000_lv_jumbo_workaround_ich8lan(hw, TRUE);
+			e1000_lv_jumbo_workaround_ich8lan(hw, true);
 		else
-			e1000_lv_jumbo_workaround_ich8lan(hw, FALSE);
+			e1000_lv_jumbo_workaround_ich8lan(hw, false);
 	}
 
 	/* Make sure VLAN Filters are off */
@@ -3505,7 +3505,7 @@ em_if_vlan_filter_write(struct adapter *adapter)
 		if (adapter->shadow_vfta[i] != 0) {
 			/* XXXKB: incomplete VF support, we return early above */
 			if (adapter->vf_ifp)
-				e1000_vfta_set_vf(hw, adapter->shadow_vfta[i], TRUE);
+				e1000_vfta_set_vf(hw, adapter->shadow_vfta[i], true);
 			else
 				e1000_write_vfta(hw, i, adapter->shadow_vfta[i]);
 		}
@@ -3719,10 +3719,10 @@ em_is_valid_ether_addr(u8 *addr)
 	char zero_addr[6] = { 0, 0, 0, 0, 0, 0 };
 
 	if ((addr[0] & 1) || (!bcmp(addr, zero_addr, ETHER_ADDR_LEN))) {
-		return (FALSE);
+		return (false);
 	}
 
-	return (TRUE);
+	return (true);
 }
 
 /*
@@ -3761,7 +3761,7 @@ em_get_wakeup(if_ctx_t ctx)
 		break;
 	case e1000_82573:
 	case e1000_82583:
-		adapter->has_amt = TRUE;
+		adapter->has_amt = true;
 		/* FALLTHROUGH */
 	case e1000_82571:
 	case e1000_82572:
@@ -3791,7 +3791,7 @@ em_get_wakeup(if_ctx_t ctx)
 	case e1000_vfadapt:
 	case e1000_vfadapt_i350:
 		apme_mask = E1000_WUC_APME;
-		adapter->has_amt = TRUE;
+		adapter->has_amt = true;
 		eeprom_data = E1000_READ_REG(&adapter->hw, E1000_WUC);
 		break;
 	default:
diff --git a/sys/dev/e1000/igb_txrx.c b/sys/dev/e1000/igb_txrx.c
index f7c55137d1f8..9854d1bb3cef 100644
--- a/sys/dev/e1000/igb_txrx.c
+++ b/sys/dev/e1000/igb_txrx.c
@@ -480,7 +480,7 @@ igb_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri)
 		if (++cidx == scctx->isc_nrxd[0])
 			cidx = 0;
 #ifdef notyet
-		if (rxr->hdr_split == TRUE) {
+		if (rxr->hdr_split == true) {
 			ri->iri_frags[i].irf_flid = 1;
 			ri->iri_frags[i].irf_idx = cidx;
 			if (++cidx == scctx->isc_nrxd[0])