diff mbox series

[net-next,v2,04/10] net: freescale: ucc_geth: Fix WOL configuration

Message ID 20241114153603.307872-5-maxime.chevallier@bootlin.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series net: freescale: ucc_geth: Phylink conversion | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 2 maintainers not CCed: andrew+netdev@lunn.ch rosenp@gmail.com
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 3 this patch: 3
netdev/checkpatch warning WARNING: else is not generally useful after a break or return
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest fail net-next-2024-11-14--21-00 (tests: 787)

Commit Message

Maxime Chevallier Nov. 14, 2024, 3:35 p.m. UTC
The get/set_wol ethtool ops rely on querying the PHY for its WoL
capabilities, checking for the presence of a PHY and a PHY interrupts
isn't enough. Address that by cleaning up the WoL configuration
sequence.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
---
V2: Reworked the whole configuration sequence, and introduced an
internal attribute to store the PHY wol capabilities

 drivers/net/ethernet/freescale/ucc_geth.c     |  4 +--
 drivers/net/ethernet/freescale/ucc_geth.h     |  1 +
 .../net/ethernet/freescale/ucc_geth_ethtool.c | 36 +++++++++++++++----
 3 files changed, 32 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 13b8f8401c81..42254ee64a35 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3413,11 +3413,11 @@  static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
 	 */
 	ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
 
-	if (ugeth->wol_en & WAKE_MAGIC) {
+	if (ugeth->wol_en & WAKE_MAGIC && !ugeth->phy_wol_en) {
 		setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
 		setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
 		ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
-	} else if (!(ugeth->wol_en & WAKE_PHY)) {
+	} else if (!ugeth->phy_wol_en) {
 		phy_stop(ndev->phydev);
 	}
 
diff --git a/drivers/net/ethernet/freescale/ucc_geth.h b/drivers/net/ethernet/freescale/ucc_geth.h
index c08a56b7c9fe..e08cfc8d8904 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.h
+++ b/drivers/net/ethernet/freescale/ucc_geth.h
@@ -1217,6 +1217,7 @@  struct ucc_geth_private {
 	int oldduplex;
 	int oldlink;
 	int wol_en;
+	u32 phy_wol_en;
 
 	struct device_node *node;
 };
diff --git a/drivers/net/ethernet/freescale/ucc_geth_ethtool.c b/drivers/net/ethernet/freescale/ucc_geth_ethtool.c
index fb5254d7d1ba..89b323ef8145 100644
--- a/drivers/net/ethernet/freescale/ucc_geth_ethtool.c
+++ b/drivers/net/ethernet/freescale/ucc_geth_ethtool.c
@@ -346,26 +346,48 @@  static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	struct ucc_geth_private *ugeth = netdev_priv(netdev);
 	struct phy_device *phydev = netdev->phydev;
 
-	if (phydev && phydev->irq)
-		wol->supported |= WAKE_PHY;
+	wol->supported = 0;
+	wol->wolopts = 0;
+
+	if (phydev)
+		phy_ethtool_get_wol(phydev, wol);
+
 	if (qe_alive_during_sleep())
 		wol->supported |= WAKE_MAGIC;
 
-	wol->wolopts = ugeth->wol_en;
+	wol->wolopts |= ugeth->wol_en;
 }
 
 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct ucc_geth_private *ugeth = netdev_priv(netdev);
 	struct phy_device *phydev = netdev->phydev;
+	int ret = 0;
 
-	if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
-		return -EINVAL;
-	else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq))
+	if (phydev) {
+		ret = phy_ethtool_set_wol(phydev, wol);
+		if (ret == -EOPNOTSUPP) {
+			ugeth->phy_wol_en = 0;
+		} else if (ret) {
+			return ret;
+		} else {
+			ugeth->phy_wol_en = wol->wolopts;
+			goto out;
+		}
+	}
+
+	/* If the PHY isn't handling the WoL and the MAC is asked to more than
+	 * WAKE_MAGIC, error-out
+	 */
+	if (!ugeth->phy_wol_en &&
+	    wol->wolopts & ~WAKE_MAGIC)
 		return -EINVAL;
-	else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep())
+
+	if (wol->wolopts & WAKE_MAGIC &&
+	    !qe_alive_during_sleep())
 		return -EINVAL;
 
+out:
 	ugeth->wol_en = wol->wolopts;
 	device_set_wakeup_enable(&netdev->dev, ugeth->wol_en);