* [PATCH net-next v2] net: dsa: Mock-up driver
@ 2017-03-31 1:43 Florian Fainelli
2017-03-31 16:06 ` Andrew Lunn
2017-04-01 19:40 ` David Miller
0 siblings, 2 replies; 5+ messages in thread
From: Florian Fainelli @ 2017-03-31 1:43 UTC (permalink / raw)
To: netdev; +Cc: davem, andrew, vivien.didelot, Florian Fainelli
This patch adds support for a DSA mock-up driver which essentially does
the following:
- registers/unregisters 4 fixed PHYs to the slave network devices
- uses eth0 (configurable) as the master netdev
- registers the switch as a fixed MDIO device against the fixed MDIO bus
at address 31
- includes dynamic debug prints for dsa_switch_ops functions that can be
enabled to get call traces
This is a good way to test modular builds as well as exercise the DSA
APIs without requiring access to real hardware. This does not test the
data-path, although this could be added later on.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
Changes in v2;
- removed an unnecessary change to include/linux/fixed_phy.h
drivers/net/dsa/Kconfig | 8 +
drivers/net/dsa/Makefile | 2 +-
drivers/net/dsa/dsa_loop.c | 329 ++++++++++++++++++++++++++++++++++++++
drivers/net/dsa/dsa_loop.h | 19 +++
drivers/net/dsa/dsa_loop_bdinfo.c | 34 ++++
5 files changed, 391 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/dsa/dsa_loop.c
create mode 100644 drivers/net/dsa/dsa_loop.h
create mode 100644 drivers/net/dsa/dsa_loop_bdinfo.c
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 564b267c8428..ba2e655eec19 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -34,4 +34,12 @@ config NET_DSA_QCA8K
This enables support for the Qualcomm Atheros QCA8K Ethernet
switch chips.
+config NET_DSA_LOOP
+ tristate "DSA mock-up Ethernet switch chip support"
+ depends on NET_DSA
+ select FIXED_PHY
+ ---help---
+ This enables support for a fake mock-up switch chip which
+ exercises the DSA APIs.
+
endmenu
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index a3c941632217..5c8830991041 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -2,6 +2,6 @@ obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o
obj-$(CONFIG_NET_DSA_BCM_SF2) += bcm-sf2.o
bcm-sf2-objs := bcm_sf2.o bcm_sf2_cfp.o
obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o
-
obj-y += b53/
obj-y += mv88e6xxx/
+obj-$(CONFIG_NET_DSA_LOOP) += dsa_loop.o dsa_loop_bdinfo.o
diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c
new file mode 100644
index 000000000000..0a9a2f846efd
--- /dev/null
+++ b/drivers/net/dsa/dsa_loop.c
@@ -0,0 +1,329 @@
+/*
+ * Distributed Switch Architecture loopback driver
+ *
+ * Copyright (C) 2016, Florian Fainelli <f.fainelli@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <linux/export.h>
+#include <linux/workqueue.h>
+#include <linux/module.h>
+#include <linux/if_bridge.h>
+#include <net/switchdev.h>
+#include <net/dsa.h>
+
+#include "dsa_loop.h"
+
+struct dsa_loop_vlan {
+ u16 members;
+ u16 untagged;
+};
+
+#define DSA_LOOP_VLANS 5
+
+struct dsa_loop_priv {
+ struct mii_bus *bus;
+ unsigned int port_base;
+ struct dsa_loop_vlan vlans[DSA_LOOP_VLANS];
+ struct net_device *netdev;
+ u16 pvid;
+};
+
+static struct phy_device *phydevs[PHY_MAX_ADDR];
+
+static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return DSA_TAG_PROTO_NONE;
+}
+
+static int dsa_loop_setup(struct dsa_switch *ds)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+static int dsa_loop_set_addr(struct dsa_switch *ds, u8 *addr)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+static int dsa_loop_phy_read(struct dsa_switch *ds, int port, int regnum)
+{
+ struct dsa_loop_priv *ps = ds->priv;
+ struct mii_bus *bus = ps->bus;
+
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return mdiobus_read_nested(bus, ps->port_base + port, regnum);
+}
+
+static int dsa_loop_phy_write(struct dsa_switch *ds, int port,
+ int regnum, u16 value)
+{
+ struct dsa_loop_priv *ps = ds->priv;
+ struct mii_bus *bus = ps->bus;
+
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return mdiobus_write_nested(bus, ps->port_base + port, regnum, value);
+}
+
+static int dsa_loop_port_bridge_join(struct dsa_switch *ds, int port,
+ struct net_device *bridge)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+static void dsa_loop_port_bridge_leave(struct dsa_switch *ds, int port,
+ struct net_device *bridge)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+}
+
+static void dsa_loop_port_stp_state_set(struct dsa_switch *ds, int port,
+ u8 state)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+}
+
+static int dsa_loop_port_vlan_filtering(struct dsa_switch *ds, int port,
+ bool vlan_filtering)
+{
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+static int dsa_loop_port_vlan_prepare(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans)
+{
+ struct dsa_loop_priv *ps = ds->priv;
+ struct mii_bus *bus = ps->bus;
+
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ /* Just do a sleeping operation to make lockdep checks effective */
+ mdiobus_read(bus, ps->port_base + port, MII_BMSR);
+
+ if (vlan->vid_end > DSA_LOOP_VLANS)
+ return -ERANGE;
+
+ return 0;
+}
+
+static void dsa_loop_port_vlan_add(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct switchdev_trans *trans)
+{
+ bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ struct dsa_loop_priv *ps = ds->priv;
+ struct mii_bus *bus = ps->bus;
+ struct dsa_loop_vlan *vl;
+ u16 vid;
+
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ /* Just do a sleeping operation to make lockdep checks effective */
+ mdiobus_read(bus, ps->port_base + port, MII_BMSR);
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
+ vl = &ps->vlans[vid];
+
+ vl->members |= BIT(port);
+ if (untagged)
+ vl->untagged |= BIT(port);
+ else
+ vl->untagged &= ~BIT(port);
+ }
+
+ if (pvid)
+ ps->pvid = vid;
+}
+
+static int dsa_loop_port_vlan_del(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ struct dsa_loop_priv *ps = ds->priv;
+ struct mii_bus *bus = ps->bus;
+ struct dsa_loop_vlan *vl;
+ u16 vid, pvid;
+
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ /* Just do a sleeping operation to make lockdep checks effective */
+ mdiobus_read(bus, ps->port_base + port, MII_BMSR);
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
+ vl = &ps->vlans[vid];
+
+ vl->members &= ~BIT(port);
+ if (untagged)
+ vl->untagged &= ~BIT(port);
+
+ if (pvid == vid)
+ pvid = 1;
+ }
+ ps->pvid = pvid;
+
+ return 0;
+}
+
+static int dsa_loop_port_vlan_dump(struct dsa_switch *ds, int port,
+ struct switchdev_obj_port_vlan *vlan,
+ int (*cb)(struct switchdev_obj *obj))
+{
+ struct dsa_loop_priv *ps = ds->priv;
+ struct mii_bus *bus = ps->bus;
+ struct dsa_loop_vlan *vl;
+ u16 vid, vid_start = 0;
+ int err;
+
+ dev_dbg(ds->dev, "%s\n", __func__);
+
+ /* Just do a sleeping operation to make lockdep checks effective */
+ mdiobus_read(bus, ps->port_base + port, MII_BMSR);
+
+ for (vid = vid_start; vid < DSA_LOOP_VLANS; vid++) {
+ vl = &ps->vlans[vid];
+
+ if (!(vl->members & BIT(port)))
+ continue;
+
+ vlan->vid_begin = vlan->vid_end = vid;
+ vlan->flags = 0;
+
+ if (vl->untagged & BIT(port))
+ vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
+ if (ps->pvid == vid)
+ vlan->flags |= BRIDGE_VLAN_INFO_PVID;
+
+ err = cb(&vlan->obj);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+static struct dsa_switch_ops dsa_loop_driver = {
+ .get_tag_protocol = dsa_loop_get_protocol,
+ .setup = dsa_loop_setup,
+ .set_addr = dsa_loop_set_addr,
+ .phy_read = dsa_loop_phy_read,
+ .phy_write = dsa_loop_phy_write,
+ .port_bridge_join = dsa_loop_port_bridge_join,
+ .port_bridge_leave = dsa_loop_port_bridge_leave,
+ .port_stp_state_set = dsa_loop_port_stp_state_set,
+ .port_vlan_filtering = dsa_loop_port_vlan_filtering,
+ .port_vlan_prepare = dsa_loop_port_vlan_prepare,
+ .port_vlan_add = dsa_loop_port_vlan_add,
+ .port_vlan_del = dsa_loop_port_vlan_del,
+ .port_vlan_dump = dsa_loop_port_vlan_dump,
+};
+
+static int dsa_loop_drv_probe(struct mdio_device *mdiodev)
+{
+ struct dsa_loop_pdata *pdata = mdiodev->dev.platform_data;
+ struct dsa_loop_priv *ps;
+ struct dsa_switch *ds;
+
+ if (!pdata)
+ return -ENODEV;
+
+ dev_info(&mdiodev->dev, "%s: 0x%0x\n",
+ pdata->name, pdata->enabled_ports);
+
+ ds = dsa_switch_alloc(&mdiodev->dev, DSA_MAX_PORTS);
+ if (!ds)
+ return -ENOMEM;
+
+ ps = devm_kzalloc(&mdiodev->dev, sizeof(*ps), GFP_KERNEL);
+ ps->netdev = dev_get_by_name(&init_net, pdata->netdev);
+ if (!ps->netdev)
+ return -EPROBE_DEFER;
+
+ pdata->cd.netdev[DSA_LOOP_CPU_PORT] = &ps->netdev->dev;
+
+ ds->dev = &mdiodev->dev;
+ ds->ops = &dsa_loop_driver;
+ ds->priv = ps;
+ ps->bus = mdiodev->bus;
+
+ dev_set_drvdata(&mdiodev->dev, ds);
+
+ return dsa_register_switch(ds, ds->dev);
+}
+
+static void dsa_loop_drv_remove(struct mdio_device *mdiodev)
+{
+ struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
+ struct dsa_loop_priv *ps = ds->priv;
+
+ dsa_unregister_switch(ds);
+ dev_put(ps->netdev);
+}
+
+static struct mdio_driver dsa_loop_drv = {
+ .mdiodrv.driver = {
+ .name = "dsa-loop",
+ },
+ .probe = dsa_loop_drv_probe,
+ .remove = dsa_loop_drv_remove,
+};
+
+#define NUM_FIXED_PHYS (DSA_LOOP_NUM_PORTS - 2)
+
+static void unregister_fixed_phys(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < NUM_FIXED_PHYS; i++)
+ if (phydevs[i])
+ fixed_phy_unregister(phydevs[i]);
+}
+
+static int __init dsa_loop_init(void)
+{
+ struct fixed_phy_status status = {
+ .link = 1,
+ .speed = SPEED_100,
+ .duplex = DUPLEX_FULL,
+ };
+ unsigned int i;
+
+ for (i = 0; i < NUM_FIXED_PHYS; i++)
+ phydevs[i] = fixed_phy_register(PHY_POLL, &status, -1, NULL);
+
+ return mdio_driver_register(&dsa_loop_drv);
+}
+module_init(dsa_loop_init);
+
+static void __exit dsa_loop_exit(void)
+{
+ mdio_driver_unregister(&dsa_loop_drv);
+ unregister_fixed_phys();
+}
+module_exit(dsa_loop_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Florian Fainelli");
+MODULE_DESCRIPTION("DSA loopback driver");
+
diff --git a/drivers/net/dsa/dsa_loop.h b/drivers/net/dsa/dsa_loop.h
new file mode 100644
index 000000000000..dc396877fc95
--- /dev/null
+++ b/drivers/net/dsa/dsa_loop.h
@@ -0,0 +1,19 @@
+#ifndef __DSA_LOOP_H
+#define __DSA_LOOP_H
+
+struct dsa_chip_data;
+
+struct dsa_loop_pdata {
+ /* Must be first, such that dsa_register_switch() can access this
+ * without gory pointer manipulations
+ */
+ struct dsa_chip_data cd;
+ const char *name;
+ unsigned int enabled_ports;
+ const char *netdev;
+};
+
+#define DSA_LOOP_NUM_PORTS 6
+#define DSA_LOOP_CPU_PORT (DSA_LOOP_NUM_PORTS - 1)
+
+#endif /* __DSA_LOOP_H */
diff --git a/drivers/net/dsa/dsa_loop_bdinfo.c b/drivers/net/dsa/dsa_loop_bdinfo.c
new file mode 100644
index 000000000000..b4a54cd7c178
--- /dev/null
+++ b/drivers/net/dsa/dsa_loop_bdinfo.c
@@ -0,0 +1,34 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/phy.h>
+#include <net/dsa.h>
+
+#include "dsa_loop.h"
+
+static struct dsa_loop_pdata dsa_loop_pdata = {
+ .cd = {
+ .port_names[0] = "lan1",
+ .port_names[1] = "lan2",
+ .port_names[2] = "lan3",
+ .port_names[3] = "lan4",
+ .port_names[DSA_LOOP_CPU_PORT] = "cpu",
+ },
+ .name = "DSA mockup driver",
+ .enabled_ports = 0x1f,
+ .netdev = "eth0",
+};
+
+static const struct mdio_board_info bdinfo = {
+ .bus_id = "fixed-0",
+ .modalias = "dsa-loop",
+ .mdio_addr = 31,
+ .platform_data = &dsa_loop_pdata,
+};
+
+static int __init dsa_loop_bdinfo_init(void)
+{
+ return mdiobus_register_board_info(&bdinfo, 1);
+}
+arch_initcall(dsa_loop_bdinfo_init)
+
+MODULE_LICENSE("GPL");
--
2.9.3
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH net-next v2] net: dsa: Mock-up driver
2017-03-31 1:43 [PATCH net-next v2] net: dsa: Mock-up driver Florian Fainelli
@ 2017-03-31 16:06 ` Andrew Lunn
2017-03-31 16:40 ` Florian Fainelli
2017-04-01 19:40 ` David Miller
1 sibling, 1 reply; 5+ messages in thread
From: Andrew Lunn @ 2017-03-31 16:06 UTC (permalink / raw)
To: Florian Fainelli; +Cc: netdev, davem, vivien.didelot
Hi Florian
> +static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds)
> +{
> + dev_dbg(ds->dev, "%s\n", __func__);
> +
> + return DSA_TAG_PROTO_NONE;
> +}
I'm wondering how safe this is:
static const struct dsa_device_ops none_ops = {
.xmit = dsa_slave_notag_xmit,
.rcv = NULL,
};
/*
* If the CPU connects to this switch, set the switch tree
* tagging protocol to the preferred tagging format of this
* switch.
*/
if (dst->cpu_switch == ds) {
enum dsa_tag_protocol tag_protocol;
tag_protocol = ops->get_tag_protocol(ds);
dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
if (IS_ERR(dst->tag_ops))
return PTR_ERR(dst->tag_ops);
dst->rcv = dst->tag_ops->rcv;
}
static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev)
{
struct dsa_switch_tree *dst = dev->dsa_ptr;
if (unlikely(dst == NULL)) {
kfree_skb(skb);
return 0;
}
return dst->rcv(skb, dev, pt, orig_dev);
}
static struct packet_type dsa_pack_type __read_mostly = {
.type = cpu_to_be16(ETH_P_XDSA),
.func = dsa_switch_rcv,
};
It looks like when a frame is received, we are going to dereference a
NULL pointer.
Either we need a NOP rcv function, or we don't register dsa_pack_type
if rcv is NULL.
Andrew
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH net-next v2] net: dsa: Mock-up driver
2017-03-31 16:06 ` Andrew Lunn
@ 2017-03-31 16:40 ` Florian Fainelli
2017-03-31 16:56 ` Andrew Lunn
0 siblings, 1 reply; 5+ messages in thread
From: Florian Fainelli @ 2017-03-31 16:40 UTC (permalink / raw)
To: Andrew Lunn; +Cc: netdev, davem, vivien.didelot
Hi Andrew,
On 03/31/2017 09:06 AM, Andrew Lunn wrote:
> Hi Florian
>
>> +static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds)
>> +{
>> + dev_dbg(ds->dev, "%s\n", __func__);
>> +
>> + return DSA_TAG_PROTO_NONE;
>> +}
>
> I'm wondering how safe this is:
>
> static const struct dsa_device_ops none_ops = {
> .xmit = dsa_slave_notag_xmit,
> .rcv = NULL,
> };
>
> /*
> * If the CPU connects to this switch, set the switch tree
> * tagging protocol to the preferred tagging format of this
> * switch.
> */
> if (dst->cpu_switch == ds) {
> enum dsa_tag_protocol tag_protocol;
>
> tag_protocol = ops->get_tag_protocol(ds);
> dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
> if (IS_ERR(dst->tag_ops))
> return PTR_ERR(dst->tag_ops);
>
> dst->rcv = dst->tag_ops->rcv;
> }
>
>
> static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
> struct packet_type *pt, struct net_device *orig_dev)
> {
> struct dsa_switch_tree *dst = dev->dsa_ptr;
>
> if (unlikely(dst == NULL)) {
> kfree_skb(skb);
> return 0;
> }
>
> return dst->rcv(skb, dev, pt, orig_dev);
> }
>
> static struct packet_type dsa_pack_type __read_mostly = {
> .type = cpu_to_be16(ETH_P_XDSA),
> .func = dsa_switch_rcv,
> };
>
> It looks like when a frame is received, we are going to dereference a
> NULL pointer.
Actually we do not, because netdev_uses_dsa() returns true only when
dst->rcv is different from NULL. When dst->rcv is NULL we completely
bypass the DSA hook in eth_type_trans() and everything is well, the
master network device is the one receiving packets.
This is actually the intended behavior for netdev_uses_dsa() because it
really tells whether there is a DSA tagging protocol set-up and that is
what NIC drivers (e.g: bcmsysport) would care about.
Thanks!
--
Florian
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH net-next v2] net: dsa: Mock-up driver
2017-03-31 16:40 ` Florian Fainelli
@ 2017-03-31 16:56 ` Andrew Lunn
0 siblings, 0 replies; 5+ messages in thread
From: Andrew Lunn @ 2017-03-31 16:56 UTC (permalink / raw)
To: Florian Fainelli; +Cc: netdev, davem, vivien.didelot
> Actually we do not, because netdev_uses_dsa() returns true only when
> dst->rcv is different from NULL. When dst->rcv is NULL we completely
> bypass the DSA hook in eth_type_trans() and everything is well, the
> master network device is the one receiving packets.
static inline bool netdev_uses_dsa(struct net_device *dev)
{
#if IS_ENABLED(CONFIG_NET_DSA)
if (dev->dsa_ptr != NULL)
return dsa_uses_tagged_protocol(dev->dsa_ptr);
#endif
return false;
}
and
static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
{
return dst->rcv != NULL;
}
Yep, i just needed to dig further...
Thanks
Andrew
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH net-next v2] net: dsa: Mock-up driver
2017-03-31 1:43 [PATCH net-next v2] net: dsa: Mock-up driver Florian Fainelli
2017-03-31 16:06 ` Andrew Lunn
@ 2017-04-01 19:40 ` David Miller
1 sibling, 0 replies; 5+ messages in thread
From: David Miller @ 2017-04-01 19:40 UTC (permalink / raw)
To: f.fainelli; +Cc: netdev, andrew, vivien.didelot
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 30 Mar 2017 18:43:21 -0700
> This patch adds support for a DSA mock-up driver which essentially does
> the following:
>
> - registers/unregisters 4 fixed PHYs to the slave network devices
> - uses eth0 (configurable) as the master netdev
> - registers the switch as a fixed MDIO device against the fixed MDIO bus
> at address 31
> - includes dynamic debug prints for dsa_switch_ops functions that can be
> enabled to get call traces
>
> This is a good way to test modular builds as well as exercise the DSA
> APIs without requiring access to real hardware. This does not test the
> data-path, although this could be added later on.
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
> Changes in v2;
>
> - removed an unnecessary change to include/linux/fixed_phy.h
This looks extremely useful, applied, thanks!
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-04-01 19:40 UTC | newest]
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2017-03-31 1:43 [PATCH net-next v2] net: dsa: Mock-up driver Florian Fainelli
2017-03-31 16:06 ` Andrew Lunn
2017-03-31 16:40 ` Florian Fainelli
2017-03-31 16:56 ` Andrew Lunn
2017-04-01 19:40 ` David Miller
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