linux-kernel - [PATCH net-next 3/9] net: lan966x: Add initial VCAP

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Message-ID: <20221125095010.124458-4-horatiu.vultur@microchip.com>
Date:   Fri, 25 Nov 2022 10:50:04 +0100
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <lars.povlsen@...rochip.com>,
        <Steen.Hegelund@...rochip.com>, <daniel.machon@...rochip.com>,
        <UNGLinuxDriver@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next 3/9] net: lan966x: Add initial VCAP

When lan966x driver is initialized, initialize also the VCAP module for
lan966x.

Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
---
 .../net/ethernet/microchip/lan966x/Kconfig    |  1 +
 .../net/ethernet/microchip/lan966x/Makefile   |  5 +++-
 .../ethernet/microchip/lan966x/lan966x_main.c |  8 ++++++
 .../ethernet/microchip/lan966x/lan966x_main.h |  6 ++++
 .../microchip/lan966x/lan966x_vcap_impl.c     | 28 +++++++++++++++++++
 5 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c

diff --git a/drivers/net/ethernet/microchip/lan966x/Kconfig b/drivers/net/ethernet/microchip/lan966x/Kconfig
index b7ae5ce7d3f7a..8bcd60f17d6d3 100644
--- a/drivers/net/ethernet/microchip/lan966x/Kconfig
+++ b/drivers/net/ethernet/microchip/lan966x/Kconfig
@@ -8,5 +8,6 @@ config LAN966X_SWITCH
 	select PHYLINK
 	select PACKING
 	select PAGE_POOL
+	select VCAP
 	help
 	  This driver supports the Lan966x network switch device.
diff --git a/drivers/net/ethernet/microchip/lan966x/Makefile b/drivers/net/ethernet/microchip/lan966x/Makefile
index 251a7d561d633..2c27784859014 100644
--- a/drivers/net/ethernet/microchip/lan966x/Makefile
+++ b/drivers/net/ethernet/microchip/lan966x/Makefile
@@ -12,4 +12,7 @@ lan966x-switch-objs  := lan966x_main.o lan966x_phylink.o lan966x_port.o \
 			lan966x_tc.o lan966x_mqprio.o lan966x_taprio.o \
 			lan966x_tbf.o lan966x_cbs.o lan966x_ets.o \
 			lan966x_tc_matchall.o lan966x_police.o lan966x_mirror.o \
-			lan966x_xdp.o
+			lan966x_xdp.o lan966x_vcap_impl.o
+
+# Provide include files
+ccflags-y += -I$(srctree)/drivers/net/ethernet/microchip/vcap
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 42be5d0f1f015..546f3ad9f2951 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -1156,8 +1156,15 @@ static int lan966x_probe(struct platform_device *pdev)
 	if (err)
 		goto cleanup_ptp;
 
+	err = lan966x_vcap_init(lan966x);
+	if (err)
+		goto cleanup_fdma;
+
 	return 0;
 
+cleanup_fdma:
+	lan966x_fdma_deinit(lan966x);
+
 cleanup_ptp:
 	lan966x_ptp_deinit(lan966x);
 
@@ -1181,6 +1188,7 @@ static int lan966x_remove(struct platform_device *pdev)
 	struct lan966x *lan966x = platform_get_drvdata(pdev);
 
 	lan966x_taprio_deinit(lan966x);
+	lan966x_vcap_deinit(lan966x);
 	lan966x_fdma_deinit(lan966x);
 	lan966x_cleanup_ports(lan966x);
 
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
index bc93051aa0798..eecb1a2bf9a72 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h
@@ -290,6 +290,9 @@ struct lan966x {
 	struct lan966x_port *mirror_monitor;
 	u32 mirror_mask[2];
 	u32 mirror_count;
+
+	/* vcap */
+	struct vcap_control *vcap_ctrl;
 };
 
 struct lan966x_port_config {
@@ -560,6 +563,9 @@ static inline bool lan966x_xdp_port_present(struct lan966x_port *port)
 	return !!port->xdp_prog;
 }
 
+int lan966x_vcap_init(struct lan966x *lan966x);
+void lan966x_vcap_deinit(struct lan966x *lan966x);
+
 static inline void __iomem *lan_addr(void __iomem *base[],
 				     int id, int tinst, int tcnt,
 				     int gbase, int ginst,
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c b/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c
new file mode 100644
index 0000000000000..8d89cfcb8502d
--- /dev/null
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include "lan966x_main.h"
+#include "vcap_api.h"
+
+int lan966x_vcap_init(struct lan966x *lan966x)
+{
+	struct vcap_control *ctrl;
+
+	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
+	if (!ctrl)
+		return -ENOMEM;
+
+	lan966x->vcap_ctrl = ctrl;
+
+	return 0;
+}
+
+void lan966x_vcap_deinit(struct lan966x *lan966x)
+{
+	struct vcap_control *ctrl;
+
+	ctrl = lan966x->vcap_ctrl;
+	if (!ctrl)
+		return;
+
+	kfree(ctrl);
+}
-- 
2.38.0