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kernel: add mv88e61xx switch port-mirroring support

Compile & run tested on mvebu

Signed-off-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>
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dengqf6 authored and hauke committed Dec 14, 2018
1 parent b88ce25 commit 18501889f6e353334152b31517bc21094d672da7
@@ -454,6 +454,86 @@ static int mvsw61xx_set_enable_vlan(struct switch_dev *dev,
return 0;
}

static int mvsw61xx_get_mirror_rx_enable(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

val->value.i = state->mirror_rx;

return 0;
}

static int mvsw61xx_set_mirror_rx_enable(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

state->mirror_rx = val->value.i;

return 0;
}

static int mvsw61xx_get_mirror_tx_enable(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

val->value.i = state->mirror_tx;

return 0;
}

static int mvsw61xx_set_mirror_tx_enable(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

state->mirror_tx = val->value.i;

return 0;
}

static int mvsw61xx_get_mirror_monitor_port(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

val->value.i = state->monitor_port;

return 0;
}

static int mvsw61xx_set_mirror_monitor_port(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

state->monitor_port = val->value.i;

return 0;
}

static int mvsw61xx_get_mirror_source_port(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

val->value.i = state->source_port;

return 0;
}

static int mvsw61xx_set_mirror_source_port(struct switch_dev *dev,
const struct switch_attr *attr, struct switch_val *val)
{
struct mvsw61xx_state *state = get_state(dev);

state->source_port = val->value.i;

return 0;
}

static int mvsw61xx_vtu_program(struct switch_dev *dev)
{
struct mvsw61xx_state *state = get_state(dev);
@@ -604,6 +684,40 @@ static int mvsw61xx_update_state(struct switch_dev *dev)

mvsw61xx_vtu_program(dev);

/* port mirroring */
/* reset all mirror registers */
for (i = 0; i < dev->ports; i++) {
reg = sr16(dev, MV_PORTREG(CONTROL2, i));
reg &= ~(MV_MIRROR_RX_SRC_MASK | MV_MIRROR_TX_SRC_MASK);
sw16(dev, MV_PORTREG(CONTROL2, i), reg);
}
reg = sr16(dev, MV_GLOBALREG(MONITOR_CTRL));
reg |= MV_MIRROR_RX_DEST_MASK | MV_MIRROR_TX_DEST_MASK;
sw16(dev, MV_GLOBALREG(MONITOR_CTRL), reg);

/* now enable mirroring if necessary */
if (state->mirror_rx) {
/* set ingress monitor source */
reg = sr16(dev, MV_PORTREG(CONTROL2, state->source_port)) & ~MV_MIRROR_RX_SRC_MASK;
reg |= state->mirror_rx << MV_MIRROR_RX_SRC_SHIFT;
sw16(dev, MV_PORTREG(CONTROL2, state->source_port), reg);
/* set ingress monitor destination */
reg = sr16(dev, MV_GLOBALREG(MONITOR_CTRL)) & ~MV_MIRROR_RX_DEST_MASK;
reg |= state->monitor_port << MV_MIRROR_RX_DEST_SHIFT;
sw16(dev, MV_GLOBALREG(MONITOR_CTRL), reg);
}

if (state->mirror_tx) {
/* set egress monitor source */
reg = sr16(dev, MV_PORTREG(CONTROL2, state->source_port)) & ~MV_MIRROR_TX_SRC_MASK;
reg |= state->mirror_tx << MV_MIRROR_TX_SRC_SHIFT;
sw16(dev, MV_PORTREG(CONTROL2, state->source_port), reg);
/* set egress monitor destination */
reg = sr16(dev, MV_GLOBALREG(MONITOR_CTRL)) & ~MV_MIRROR_TX_DEST_MASK;
reg |= state->monitor_port << MV_MIRROR_TX_DEST_SHIFT;
sw16(dev, MV_GLOBALREG(MONITOR_CTRL), reg);
}

return 0;
}

@@ -693,6 +807,11 @@ static int _mvsw61xx_reset(struct switch_dev *dev, bool full)

state->vlan_enabled = 0;

state->mirror_rx = false;
state->mirror_tx = false;
state->source_port = 0;
state->monitor_port = 0;

mvsw61xx_update_state(dev);

/* Re-enable ports */
@@ -710,10 +829,6 @@ static int mvsw61xx_reset(struct switch_dev *dev)
return _mvsw61xx_reset(dev, false);
}

enum {
MVSW61XX_ENABLE_VLAN,
};

enum {
MVSW61XX_VLAN_PORT_BASED,
MVSW61XX_VLAN_ID,
@@ -725,14 +840,45 @@ enum {
};

static const struct switch_attr mvsw61xx_global[] = {
[MVSW61XX_ENABLE_VLAN] = {
.id = MVSW61XX_ENABLE_VLAN,
{
.type = SWITCH_TYPE_INT,
.name = "enable_vlan",
.description = "Enable 802.1q VLAN support",
.get = mvsw61xx_get_enable_vlan,
.set = mvsw61xx_set_enable_vlan,
},
{
.type = SWITCH_TYPE_INT,
.name = "enable_mirror_rx",
.description = "Enable mirroring of RX packets",
.set = mvsw61xx_set_mirror_rx_enable,
.get = mvsw61xx_get_mirror_rx_enable,
.max = 1
},
{
.type = SWITCH_TYPE_INT,
.name = "enable_mirror_tx",
.description = "Enable mirroring of TX packets",
.set = mvsw61xx_set_mirror_tx_enable,
.get = mvsw61xx_get_mirror_tx_enable,
.max = 1
},
{
.type = SWITCH_TYPE_INT,
.name = "mirror_monitor_port",
.description = "Mirror monitor port",
.set = mvsw61xx_set_mirror_monitor_port,
.get = mvsw61xx_get_mirror_monitor_port,
.max = MV_PORTS - 1
},
{
.type = SWITCH_TYPE_INT,
.name = "mirror_source_port",
.description = "Mirror source port",
.set = mvsw61xx_set_mirror_source_port,
.get = mvsw61xx_get_mirror_source_port,
.max = MV_PORTS - 1
},
};

static const struct switch_attr mvsw61xx_vlan[] = {
@@ -165,6 +165,7 @@ enum {
MV_GLOBAL_VTU_DATA1 = 0x07,
MV_GLOBAL_VTU_DATA2 = 0x08,
MV_GLOBAL_VTU_DATA3 = 0x09,
MV_GLOBAL_MONITOR_CTRL = 0x1a,
MV_GLOBAL_CONTROL2 = 0x1c,
};
#define MV_GLOBALREG(_type) MV_SWITCH_GLOBAL, MV_GLOBAL_##_type
@@ -242,6 +243,16 @@ enum {
#define MV_FDB_HI_SHIFT 4
#define MV_FDB_LO_SHIFT 12

#define MV_MIRROR_RX_DEST_MASK 0xf000
#define MV_MIRROR_TX_DEST_MASK 0x0f00
#define MV_MIRROR_RX_DEST_SHIFT 12
#define MV_MIRROR_TX_DEST_SHIFT 8

#define MV_MIRROR_RX_SRC_SHIFT 4
#define MV_MIRROR_RX_SRC_MASK (1 << MV_MIRROR_RX_SRC_SHIFT)
#define MV_MIRROR_TX_SRC_SHIFT 5
#define MV_MIRROR_TX_SRC_MASK (1 << MV_MIRROR_TX_SRC_SHIFT)

/* Marvell Specific PHY register */
#define MII_MV_SPEC_CTRL 16
enum {
@@ -284,6 +295,12 @@ struct mvsw61xx_state {
u32 port_sstate;
} vlans[MV_VLANS];

/* mirroring */
bool mirror_rx;
bool mirror_tx;
int source_port;
int monitor_port;

char buf[128];
};

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