ptp: Enable clock drivers along with associated net/PHY drivers

Where a PTP clock driver is associated with a net or PHY driver, it
should be enabled automatically whenever that driver is enabled.
Therefore:

- Make PTP clock drivers select rather than depending on PTP_1588_CLOCK
- Remove separate boolean options for PTP clock drivers that are built
  as part of net driver modules.  (This also fixes cases where the PTP
  subsystem is wrongly forced to be built-in.)
- Set 'default y' for PTP clock drivers that depend on specific net
  drivers but are built separately

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 1 insertions, 39 deletions

diff --git a/drivers/net/ethernet/intel/igb/Makefile b/drivers/net/ethernet/intel/igb/Makefile
index 97c197fd4a8e..624476cfa727 100644
--- a/drivers/net/ethernet/intel/igb/Makefile
+++ b/drivers/net/ethernet/intel/igb/Makefile
@@ -34,6 +34,4 @@ obj-$(CONFIG_IGB) += igb.o
 
 igb-objs := igb_main.o igb_ethtool.o e1000_82575.o \
 	    e1000_mac.o e1000_nvm.o e1000_phy.o e1000_mbx.o \
-	    e1000_i210.o
-
-igb-$(CONFIG_IGB_PTP) += igb_ptp.o
+	    e1000_i210.o igb_ptp.o
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index be1971b18297..796db53954d9 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -34,11 +34,9 @@
 #include "e1000_mac.h"
 #include "e1000_82575.h"
 
-#ifdef CONFIG_IGB_PTP
 #include <linux/clocksource.h>
 #include <linux/net_tstamp.h>
 #include <linux/ptp_clock_kernel.h>
-#endif /* CONFIG_IGB_PTP */
 #include <linux/bitops.h>
 #include <linux/if_vlan.h>
 
@@ -376,7 +374,6 @@ struct igb_adapter {
 	u32 wvbr;
 	u32 *shadow_vfta;
 
-#ifdef CONFIG_IGB_PTP
 	struct ptp_clock *ptp_clock;
 	struct ptp_clock_info ptp_caps;
 	struct delayed_work ptp_overflow_work;
@@ -385,7 +382,6 @@ struct igb_adapter {
 	spinlock_t tmreg_lock;
 	struct cyclecounter cc;
 	struct timecounter tc;
-#endif /* CONFIG_IGB_PTP */
 
 	char fw_version[32];
 };
@@ -439,7 +435,6 @@ extern bool igb_has_link(struct igb_adapter *adapter);
 extern void igb_set_ethtool_ops(struct net_device *);
 extern void igb_power_up_link(struct igb_adapter *);
 extern void igb_set_fw_version(struct igb_adapter *);
-#ifdef CONFIG_IGB_PTP
 extern void igb_ptp_init(struct igb_adapter *adapter);
 extern void igb_ptp_stop(struct igb_adapter *adapter);
 extern void igb_ptp_reset(struct igb_adapter *adapter);
@@ -461,7 +456,6 @@ static inline void igb_ptp_rx_hwtstamp(struct igb_q_vector *q_vector,
 
 extern int igb_ptp_hwtstamp_ioctl(struct net_device *netdev,
 				  struct ifreq *ifr, int cmd);
-#endif /* CONFIG_IGB_PTP */
 
 static inline s32 igb_reset_phy(struct e1000_hw *hw)
 {
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 375c0dad8d29..d8b1bee606c0 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2310,7 +2310,6 @@ static int igb_get_ts_info(struct net_device *dev,
 	struct igb_adapter *adapter = netdev_priv(dev);
 
 	switch (adapter->hw.mac.type) {
-#ifdef CONFIG_IGB_PTP
 	case e1000_82576:
 	case e1000_82580:
 	case e1000_i350:
@@ -2346,7 +2345,6 @@ static int igb_get_ts_info(struct net_device *dev,
 				(1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
 
 		return 0;
-#endif /* CONFIG_IGB_PTP */
 	default:
 		return -EOPNOTSUPP;
 	}
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index df1e7907bbaf..082ce73dc627 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1708,10 +1708,8 @@ void igb_reset(struct igb_adapter *adapter)
 	/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
 	wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE);
 
-#ifdef CONFIG_IGB_PTP
 	/* Re-enable PTP, where applicable. */
 	igb_ptp_reset(adapter);
-#endif /* CONFIG_IGB_PTP */
 
 	igb_get_phy_info(hw);
 }
@@ -2119,10 +2117,8 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 #endif
 
-#ifdef CONFIG_IGB_PTP
 	/* do hw tstamp init after resetting */
 	igb_ptp_init(adapter);
-#endif /* CONFIG_IGB_PTP */
 
 	dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
 	/* print bus type/speed/width info */
@@ -2197,9 +2193,7 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 	struct e1000_hw *hw = &adapter->hw;
 
 	pm_runtime_get_noresume(&pdev->dev);
-#ifdef CONFIG_IGB_PTP
 	igb_ptp_stop(adapter);
-#endif /* CONFIG_IGB_PTP */
 
 	/*
 	 * The watchdog timer may be rescheduled, so explicitly
@@ -3095,10 +3089,8 @@ void igb_configure_rx_ring(struct igb_adapter *adapter,
 	srrctl = IGB_RX_HDR_LEN << E1000_SRRCTL_BSIZEHDRSIZE_SHIFT;
 	srrctl |= IGB_RX_BUFSZ >> E1000_SRRCTL_BSIZEPKT_SHIFT;
 	srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
-#ifdef CONFIG_IGB_PTP
 	if (hw->mac.type >= e1000_82580)
 		srrctl |= E1000_SRRCTL_TIMESTAMP;
-#endif /* CONFIG_IGB_PTP */
 	/* Only set Drop Enable if we are supporting multiple queues */
 	if (adapter->vfs_allocated_count || adapter->num_rx_queues > 1)
 		srrctl |= E1000_SRRCTL_DROP_EN;
@@ -4134,11 +4126,9 @@ static __le32 igb_tx_cmd_type(u32 tx_flags)
 	if (tx_flags & IGB_TX_FLAGS_VLAN)
 		cmd_type |= cpu_to_le32(E1000_ADVTXD_DCMD_VLE);
 
-#ifdef CONFIG_IGB_PTP
 	/* set timestamp bit if present */
 	if (unlikely(tx_flags & IGB_TX_FLAGS_TSTAMP))
 		cmd_type |= cpu_to_le32(E1000_ADVTXD_MAC_TSTAMP);
-#endif /* CONFIG_IGB_PTP */
 
 	/* set segmentation bits for TSO */
 	if (tx_flags & IGB_TX_FLAGS_TSO)
@@ -4347,9 +4337,7 @@ static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size)
 netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
 				struct igb_ring *tx_ring)
 {
-#ifdef CONFIG_IGB_PTP
 	struct igb_adapter *adapter = netdev_priv(tx_ring->netdev);
-#endif /* CONFIG_IGB_PTP */
 	struct igb_tx_buffer *first;
 	int tso;
 	u32 tx_flags = 0;
@@ -4372,7 +4360,6 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
 	first->bytecount = skb->len;
 	first->gso_segs = 1;
 
-#ifdef CONFIG_IGB_PTP
 	if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
 		     !(adapter->ptp_tx_skb))) {
 		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
@@ -4382,7 +4369,6 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
 		if (adapter->hw.mac.type == e1000_82576)
 			schedule_work(&adapter->ptp_tx_work);
 	}
-#endif /* CONFIG_IGB_PTP */
 
 	if (vlan_tx_tag_present(skb)) {
 		tx_flags |= IGB_TX_FLAGS_VLAN;
@@ -4776,7 +4762,6 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-#ifdef CONFIG_IGB_PTP
 	if (icr & E1000_ICR_TS) {
 		u32 tsicr = rd32(E1000_TSICR);
 
@@ -4787,7 +4772,6 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 			schedule_work(&adapter->ptp_tx_work);
 		}
 	}
-#endif /* CONFIG_IGB_PTP */
 
 	wr32(E1000_EIMS, adapter->eims_other);
 
@@ -5539,7 +5523,6 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-#ifdef CONFIG_IGB_PTP
 	if (icr & E1000_ICR_TS) {
 		u32 tsicr = rd32(E1000_TSICR);
 
@@ -5550,7 +5533,6 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 			schedule_work(&adapter->ptp_tx_work);
 		}
 	}
-#endif /* CONFIG_IGB_PTP */
 
 	napi_schedule(&q_vector->napi);
 
@@ -5593,7 +5575,6 @@ static irqreturn_t igb_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-#ifdef CONFIG_IGB_PTP
 	if (icr & E1000_ICR_TS) {
 		u32 tsicr = rd32(E1000_TSICR);
 
@@ -5604,7 +5585,6 @@ static irqreturn_t igb_intr(int irq, void *data)
 			schedule_work(&adapter->ptp_tx_work);
 		}
 	}
-#endif /* CONFIG_IGB_PTP */
 
 	napi_schedule(&q_vector->napi);
 
@@ -5889,14 +5869,12 @@ static bool igb_add_rx_frag(struct igb_ring *rx_ring,
 	if ((size <= IGB_RX_HDR_LEN) && !skb_is_nonlinear(skb)) {
 		unsigned char *va = page_address(page) + rx_buffer->page_offset;
 
-#ifdef CONFIG_IGB_PTP
 		if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
 			igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb);
 			va += IGB_TS_HDR_LEN;
 			size -= IGB_TS_HDR_LEN;
 		}
 
-#endif
 		memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long)));
 
 		/* we can reuse buffer as-is, just make sure it is local */
@@ -6221,7 +6199,6 @@ static void igb_pull_tail(struct igb_ring *rx_ring,
 	 */
 	va = skb_frag_address(frag);
 
-#ifdef CONFIG_IGB_PTP
 	if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
 		/* retrieve timestamp from buffer */
 		igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb);
@@ -6236,7 +6213,6 @@ static void igb_pull_tail(struct igb_ring *rx_ring,
 		va += IGB_TS_HDR_LEN;
 	}
 
-#endif
 	/*
 	 * we need the header to contain the greater of either ETH_HLEN or
 	 * 60 bytes if the skb->len is less than 60 for skb_pad.
@@ -6317,9 +6293,7 @@ static void igb_process_skb_fields(struct igb_ring *rx_ring,
 
 	igb_rx_checksum(rx_ring, rx_desc, skb);
 
-#ifdef CONFIG_IGB_PTP
 	igb_ptp_rx_hwtstamp(rx_ring->q_vector, rx_desc, skb);
-#endif /* CONFIG_IGB_PTP */
 
 	if ((dev->features & NETIF_F_HW_VLAN_RX) &&
 	    igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) {
@@ -6553,10 +6527,8 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	case SIOCGMIIREG:
 	case SIOCSMIIREG:
 		return igb_mii_ioctl(netdev, ifr, cmd);
-#ifdef CONFIG_IGB_PTP
 	case SIOCSHWTSTAMP:
 		return igb_ptp_hwtstamp_ioctl(netdev, ifr, cmd);
-#endif /* CONFIG_IGB_PTP */
 	default:
 		return -EOPNOTSUPP;
 	}