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net: dsa: mv88e6xxx: Keep ATU/VTU violation statistics
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Count the numbers of various ATU and VTU violation statistics and
return them as part of the ethtool -S statistics.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Andrew Lunn authored and David S. Miller committed Mar 29, 2018
1 parent 7ae665f commit 65f60e4
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Showing 6 changed files with 78 additions and 28 deletions.
50 changes: 43 additions & 7 deletions drivers/net/dsa/mv88e6xxx/chip.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -723,6 +723,24 @@ static int mv88e6320_stats_get_strings(struct mv88e6xxx_chip *chip,
STATS_TYPE_BANK0 | STATS_TYPE_BANK1);
}

static const uint8_t *mv88e6xxx_atu_vtu_stats_strings[] = {
"atu_member_violation",
"atu_miss_violation",
"atu_full_violation",
"vtu_member_violation",
"vtu_miss_violation",
};

static void mv88e6xxx_atu_vtu_get_strings(uint8_t *data)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(mv88e6xxx_atu_vtu_stats_strings); i++)
strlcpy(data + i * ETH_GSTRING_LEN,
mv88e6xxx_atu_vtu_stats_strings[i],
ETH_GSTRING_LEN);
}

static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,
uint8_t *data)
{
Expand All @@ -736,9 +754,12 @@ static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,

if (chip->info->ops->serdes_get_strings) {
data += count * ETH_GSTRING_LEN;
chip->info->ops->serdes_get_strings(chip, port, data);
count = chip->info->ops->serdes_get_strings(chip, port, data);
}

data += count * ETH_GSTRING_LEN;
mv88e6xxx_atu_vtu_get_strings(data);

mutex_unlock(&chip->reg_lock);
}

Expand Down Expand Up @@ -783,10 +804,13 @@ static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
if (chip->info->ops->serdes_get_sset_count)
serdes_count = chip->info->ops->serdes_get_sset_count(chip,
port);
if (serdes_count < 0)
if (serdes_count < 0) {
count = serdes_count;
else
count += serdes_count;
goto out;
}
count += serdes_count;
count += ARRAY_SIZE(mv88e6xxx_atu_vtu_stats_strings);

out:
mutex_unlock(&chip->reg_lock);

Expand Down Expand Up @@ -841,6 +865,16 @@ static int mv88e6390_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
0);
}

static void mv88e6xxx_atu_vtu_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data)
{
*data++ = chip->ports[port].atu_member_violation;
*data++ = chip->ports[port].atu_miss_violation;
*data++ = chip->ports[port].atu_full_violation;
*data++ = chip->ports[port].vtu_member_violation;
*data++ = chip->ports[port].vtu_miss_violation;
}

static void mv88e6xxx_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data)
{
Expand All @@ -849,12 +883,14 @@ static void mv88e6xxx_get_stats(struct mv88e6xxx_chip *chip, int port,
if (chip->info->ops->stats_get_stats)
count = chip->info->ops->stats_get_stats(chip, port, data);

mutex_lock(&chip->reg_lock);
if (chip->info->ops->serdes_get_stats) {
data += count;
mutex_lock(&chip->reg_lock);
chip->info->ops->serdes_get_stats(chip, port, data);
mutex_unlock(&chip->reg_lock);
count = chip->info->ops->serdes_get_stats(chip, port, data);
}
data += count;
mv88e6xxx_atu_vtu_get_stats(chip, port, data);
mutex_unlock(&chip->reg_lock);
}

static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port,
Expand Down
13 changes: 9 additions & 4 deletions drivers/net/dsa/mv88e6xxx/chip.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,11 @@ struct mv88e6xxx_port_hwtstamp {

struct mv88e6xxx_port {
u64 serdes_stats[2];
u64 atu_member_violation;
u64 atu_miss_violation;
u64 atu_full_violation;
u64 vtu_member_violation;
u64 vtu_miss_violation;
};

struct mv88e6xxx_chip {
Expand Down Expand Up @@ -409,10 +414,10 @@ struct mv88e6xxx_ops {

/* Statistics from the SERDES interface */
int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port);
void (*serdes_get_strings)(struct mv88e6xxx_chip *chip, int port,
uint8_t *data);
void (*serdes_get_stats)(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);
int (*serdes_get_strings)(struct mv88e6xxx_chip *chip, int port,
uint8_t *data);
int (*serdes_get_stats)(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);

/* VLAN Translation Unit operations */
int (*vtu_getnext)(struct mv88e6xxx_chip *chip,
Expand Down
12 changes: 8 additions & 4 deletions drivers/net/dsa/mv88e6xxx/global1_atu.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -336,8 +336,6 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
if (err)
goto out;

mutex_unlock(&chip->reg_lock);

if (val & MV88E6XXX_G1_ATU_OP_AGE_OUT_VIOLATION) {
dev_err_ratelimited(chip->dev,
"ATU age out violation for %pM\n",
Expand All @@ -348,17 +346,23 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
dev_err_ratelimited(chip->dev,
"ATU member violation for %pM portvec %x\n",
entry.mac, entry.portvec);
chip->ports[entry.portvec].atu_member_violation++;
}

if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION)
if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION) {
dev_err_ratelimited(chip->dev,
"ATU miss violation for %pM portvec %x\n",
entry.mac, entry.portvec);
chip->ports[entry.portvec].atu_miss_violation++;
}

if (val & MV88E6XXX_G1_ATU_OP_FULL_VIOLATION)
if (val & MV88E6XXX_G1_ATU_OP_FULL_VIOLATION) {
dev_err_ratelimited(chip->dev,
"ATU full violation for %pM portvec %x\n",
entry.mac, entry.portvec);
chip->ports[entry.portvec].atu_full_violation++;
}
mutex_unlock(&chip->reg_lock);

return IRQ_HANDLED;

Expand Down
8 changes: 5 additions & 3 deletions drivers/net/dsa/mv88e6xxx/global1_vtu.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -539,18 +539,20 @@ static irqreturn_t mv88e6xxx_g1_vtu_prob_irq_thread_fn(int irq, void *dev_id)
if (err)
goto out;

mutex_unlock(&chip->reg_lock);

spid = val & MV88E6XXX_G1_VTU_OP_SPID_MASK;

if (val & MV88E6XXX_G1_VTU_OP_MEMBER_VIOLATION) {
dev_err_ratelimited(chip->dev, "VTU member violation for vid %d, source port %d\n",
entry.vid, spid);
chip->ports[spid].vtu_member_violation++;
}

if (val & MV88E6XXX_G1_VTU_OP_MISS_VIOLATION)
if (val & MV88E6XXX_G1_VTU_OP_MISS_VIOLATION) {
dev_err_ratelimited(chip->dev, "VTU miss violation for vid %d, source port %d\n",
entry.vid, spid);
chip->ports[spid].vtu_miss_violation++;
}
mutex_unlock(&chip->reg_lock);

return IRQ_HANDLED;

Expand Down
15 changes: 9 additions & 6 deletions drivers/net/dsa/mv88e6xxx/serdes.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -106,20 +106,21 @@ int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port)
return 0;
}

void mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data)
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data)
{
struct mv88e6352_serdes_hw_stat *stat;
int i;

if (!mv88e6352_port_has_serdes(chip, port))
return;
return 0;

for (i = 0; i < ARRAY_SIZE(mv88e6352_serdes_hw_stats); i++) {
stat = &mv88e6352_serdes_hw_stats[i];
memcpy(data + i * ETH_GSTRING_LEN, stat->string,
ETH_GSTRING_LEN);
}
return ARRAY_SIZE(mv88e6352_serdes_hw_stats);
}

static uint64_t mv88e6352_serdes_get_stat(struct mv88e6xxx_chip *chip,
Expand Down Expand Up @@ -149,16 +150,16 @@ static uint64_t mv88e6352_serdes_get_stat(struct mv88e6xxx_chip *chip,
return val;
}

void mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data)
int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data)
{
struct mv88e6xxx_port *mv88e6xxx_port = &chip->ports[port];
struct mv88e6352_serdes_hw_stat *stat;
u64 value;
int i;

if (!mv88e6352_port_has_serdes(chip, port))
return;
return 0;

BUILD_BUG_ON(ARRAY_SIZE(mv88e6352_serdes_hw_stats) >
ARRAY_SIZE(mv88e6xxx_port->serdes_stats));
Expand All @@ -169,6 +170,8 @@ void mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
mv88e6xxx_port->serdes_stats[i] += value;
data[i] = mv88e6xxx_port->serdes_stats[i];
}

return ARRAY_SIZE(mv88e6352_serdes_hw_stats);
}

/* Set the power on/off for 10GBASE-R and 10GBASE-X4/X2 */
Expand Down
8 changes: 4 additions & 4 deletions drivers/net/dsa/mv88e6xxx/serdes.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -45,8 +45,8 @@
int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on);
int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on);
int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
void mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data);
void mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data);
int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);
#endif

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