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Date:   Wed,  8 May 2019 09:51:01 +0200
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Joao Pinto <Joao.Pinto@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>
Subject: [PATCH net-next 01/11] net: stmmac: Add MAC loopback callback to HWIF

In preparation for the addition of selftests support for stmmac we add a
new callback to HWIF that can be used to set the controller in loopback
mode.

Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: Joao Pinto <jpinto@...opsys.com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: Alexandre Torgue <alexandre.torgue@...com>
---
 drivers/net/ethernet/stmicro/stmmac/hwif.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index 5bb00234d961..9a000dc31d9e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -324,6 +324,8 @@ struct stmmac_ops {
 	int (*flex_pps_config)(void __iomem *ioaddr, int index,
 			       struct stmmac_pps_cfg *cfg, bool enable,
 			       u32 sub_second_inc, u32 systime_flags);
+	/* Loopback for selftests */
+	void (*set_mac_loopback)(void __iomem *ioaddr, bool enable);
 };
 
 #define stmmac_core_init(__priv, __args...) \
@@ -392,6 +394,8 @@ struct stmmac_ops {
 	stmmac_do_callback(__priv, mac, rxp_config, __args)
 #define stmmac_flex_pps_config(__priv, __args...) \
 	stmmac_do_callback(__priv, mac, flex_pps_config, __args)
+#define stmmac_set_mac_loopback(__priv, __args...) \
+	stmmac_do_void_callback(__priv, mac, set_mac_loopback, __args)
 
 /* PTP and HW Timer helpers */
 struct stmmac_hwtimestamp {
-- 
2.7.4

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