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net: dsa: mv88e6xxx: add VTU support for 88E6390 

The 6390 family of chips use only 2 of the 3 VTU Data registers to pack
the MemberTag and PortState VLAN data. This means that they must be
written or read before or after each VTU/STU operations.

Implement this variant to add support for VTU with such chips. These
chips have a 13th bit for the VID thus set their max_vid to 8191.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-05-01 14:05:27 -04:00 committed by David S. Miller
parent 1ac758648b
commit 931d182239
3 changed files with 146 additions and 0 deletions
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18
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -2998,6 +2998,8 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
.watchdog_ops = &mv88e6390_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
.reset = mv88e6352_g1_reset,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};
static const struct mv88e6xxx_ops mv88e6190x_ops = {
@ -3028,6 +3030,8 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
.watchdog_ops = &mv88e6390_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
.reset = mv88e6352_g1_reset,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};
static const struct mv88e6xxx_ops mv88e6191_ops = {
@ -3058,6 +3062,8 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
.watchdog_ops = &mv88e6390_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
.reset = mv88e6352_g1_reset,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};
static const struct mv88e6xxx_ops mv88e6240_ops = {
@ -3122,6 +3128,8 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
.watchdog_ops = &mv88e6390_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
.reset = mv88e6352_g1_reset,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};
static const struct mv88e6xxx_ops mv88e6320_ops = {
@ -3344,6 +3352,8 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
.watchdog_ops = &mv88e6390_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
.reset = mv88e6352_g1_reset,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};
static const struct mv88e6xxx_ops mv88e6390x_ops = {
@ -3376,6 +3386,8 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
.watchdog_ops = &mv88e6390_watchdog_ops,
.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
.reset = mv88e6352_g1_reset,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};
static const struct mv88e6xxx_info mv88e6xxx_table[] = {
@ -3615,6 +3627,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6190",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
.max_vid = 8191,
.port_base_addr = 0x0,
.global1_addr = 0x1b,
.tag_protocol = DSA_TAG_PROTO_DSA,
@ -3632,6 +3645,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6190X",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
.max_vid = 8191,
.port_base_addr = 0x0,
.global1_addr = 0x1b,
.age_time_coeff = 3750,
@ -3649,6 +3663,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6191",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
.max_vid = 8191,
.port_base_addr = 0x0,
.global1_addr = 0x1b,
.age_time_coeff = 3750,
@ -3684,6 +3699,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6290",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
.max_vid = 8191,
.port_base_addr = 0x0,
.global1_addr = 0x1b,
.age_time_coeff = 3750,
@ -3806,6 +3822,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6390",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
.max_vid = 8191,
.port_base_addr = 0x0,
.global1_addr = 0x1b,
.age_time_coeff = 3750,
@ -3822,6 +3839,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6390X",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
.max_vid = 8191,
.port_base_addr = 0x0,
.global1_addr = 0x1b,
.age_time_coeff = 3750,

4
drivers/net/dsa/mv88e6xxx/global1.h
View File

@ -58,6 +58,10 @@ int mv88e6352_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry);
int mv88e6352_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry);
int mv88e6390_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry);
int mv88e6390_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry);
int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip);
#endif /* _MV88E6XXX_GLOBAL1_H */

124
drivers/net/dsa/mv88e6xxx/global1_vtu.c
View File

@ -179,6 +179,56 @@ static int mv88e6185_g1_vtu_data_write(struct mv88e6xxx_chip *chip,
return 0;
}
static int mv88e6390_g1_vtu_data_read(struct mv88e6xxx_chip *chip, u8 *data)
{
u16 regs[2];
int i;
/* Read the 2 VTU/STU Data registers */
for (i = 0; i < 2; ++i) {
u16 *reg = &regs[i];
int err;
err = mv88e6xxx_g1_read(chip, GLOBAL_VTU_DATA_0_3 + i, reg);
if (err)
return err;
}
/* Extract data */
for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
unsigned int offset = (i % 8) * 2;
data[i] = (regs[i / 8] >> offset) & 0x3;
}
return 0;
}
static int mv88e6390_g1_vtu_data_write(struct mv88e6xxx_chip *chip, u8 *data)
{
u16 regs[2] = { 0 };
int i;
/* Insert data */
for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
unsigned int offset = (i % 8) * 2;
regs[i / 8] |= (data[i] & 0x3) << offset;
}
/* Write the 2 VTU/STU Data registers */
for (i = 0; i < 2; ++i) {
u16 reg = regs[i];
int err;
err = mv88e6xxx_g1_write(chip, GLOBAL_VTU_DATA_0_3 + i, reg);
if (err)
return err;
}
return 0;
}
/* VLAN Translation Unit Operations */
static int mv88e6xxx_g1_vtu_stu_getnext(struct mv88e6xxx_chip *chip,
@ -309,6 +359,38 @@ int mv88e6352_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
return 0;
}
int mv88e6390_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
int err;
/* Fetch VLAN MemberTag data from the VTU */
err = mv88e6xxx_g1_vtu_getnext(chip, entry);
if (err)
return err;
if (entry->valid) {
err = mv88e6390_g1_vtu_data_read(chip, entry->member);
if (err)
return err;
/* Fetch VLAN PortState data from the STU */
err = mv88e6xxx_g1_vtu_stu_get(chip, entry);
if (err)
return err;
err = mv88e6390_g1_vtu_data_read(chip, entry->state);
if (err)
return err;
err = mv88e6xxx_g1_vtu_fid_read(chip, entry);
if (err)
return err;
}
return 0;
}
int mv88e6185_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
@ -375,6 +457,48 @@ int mv88e6352_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip,
return mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_VTU_LOAD_PURGE);
}
int mv88e6390_g1_vtu_loadpurge(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
int err;
err = mv88e6xxx_g1_vtu_op_wait(chip);
if (err)
return err;
err = mv88e6xxx_g1_vtu_vid_write(chip, entry);
if (err)
return err;
if (entry->valid) {
/* Write PortState data */
err = mv88e6390_g1_vtu_data_write(chip, entry->state);
if (err)
return err;
err = mv88e6xxx_g1_vtu_sid_write(chip, entry);
if (err)
return err;
/* Load STU entry */
err = mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_STU_LOAD_PURGE);
if (err)
return err;
/* Write MemberTag data */
err = mv88e6390_g1_vtu_data_write(chip, entry->member);
if (err)
return err;
err = mv88e6xxx_g1_vtu_fid_write(chip, entry);
if (err)
return err;
}
/* Load/Purge VTU entry */
return mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_VTU_LOAD_PURGE);
}
int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip)
{
int err;