netdev - [PATCH net-next 1/8] net: stmmac: add IP-specific callbacks for auxiliary snapshot

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Date: Fri, 16 Jun 2023 12:04:02 +0200
From: alexis.lothore@...tlin.com
To: Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Richard Cochran <richardcochran@...il.com>
Cc: linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Nicolas Carrier <nicolas.carrier@...-timing.safrangroup.com>
Subject: [PATCH net-next 1/8] net: stmmac: add IP-specific callbacks for auxiliary snapshot

From: Alexis Lothoré <alexis.lothore@...tlin.com>

Since auxiliary snapshots configuration registers may be different
depending the DWMAC IP, we need a specific set of callbacks to
- configure timestamp snapshot triggers
- clear the snapshots FIFO

Signed-off-by: Alexis Lothoré <alexis.lothore@...tlin.com>
---
 drivers/net/ethernet/stmicro/stmmac/hwif.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index 6ee7cf07cfd7..d0b2f13510aa 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -419,6 +419,10 @@ struct stmmac_ops {
 	void (*fpe_send_mpacket)(void __iomem *ioaddr,
 				 enum stmmac_mpacket_type type);
 	int (*fpe_irq_status)(void __iomem *ioaddr, struct net_device *dev);
+	/* Auxiliary snapshots */
+	void (*extts_configure)(void __iomem *ioaddr, int ext_snapshot_num,
+				bool on, struct net_device *dev);
+	int (*clear_snapshot_fifo)(void __iomem *ioaddr);
 };
 
 #define stmmac_core_init(__priv, __args...) \
@@ -523,6 +527,10 @@ struct stmmac_ops {
 	stmmac_do_void_callback(__priv, mac, fpe_send_mpacket, __args)
 #define stmmac_fpe_irq_status(__priv, __args...) \
 	stmmac_do_callback(__priv, mac, fpe_irq_status, __args)
+#define stmmac_extts_configure(__priv, __args...) \
+	stmmac_do_void_callback(__priv, mac, extts_configure, __args)
+#define stmmac_clear_snapshot_fifo(__priv, __args...) \
+	stmmac_do_callback(__priv, mac, clear_snapshot_fifo, __args)
 
 /* PTP and HW Timer helpers */
 struct stmmac_hwtimestamp {
-- 
2.41.0