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net: dsa: microchip: add IPV information support 

Most of Microchip KSZ switches use Internal Priority Value associated
with every frame. For example, it is possible to map any VLAN PCP or
DSCP value to IPV and at the end, map IPV to a queue.

Since amount of IPVs is not equal to amount of queues, add this
information and make use of it in some functions.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oleksij Rempel 2024-05-03 15:13:41 +02:00 committed by David S. Miller
parent 96c6f33795
commit 97278f8f10
2 changed files with 20 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/net/dsa/microchip/ksz_common.c
View File

@ -1225,6 +1225,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 3, /* total port count */
.port_nirqs = 3,
.num_tx_queues = 4,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &ksz9477_dev_ops,
@ -1255,6 +1256,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.cpu_ports = 0x10, /* can be configured as cpu port */
.port_cnt = 5, /* total cpu and user ports */
.num_tx_queues = 4,
.num_ipvs = 4,
.ops = &ksz8_dev_ops,
.phylink_mac_ops = &ksz8_phylink_mac_ops,
.ksz87xx_eee_link_erratum = true,
@ -1295,6 +1297,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.cpu_ports = 0x10, /* can be configured as cpu port */
.port_cnt = 5, /* total cpu and user ports */
.num_tx_queues = 4,
.num_ipvs = 4,
.ops = &ksz8_dev_ops,
.phylink_mac_ops = &ksz8_phylink_mac_ops,
.ksz87xx_eee_link_erratum = true,
@ -1321,6 +1324,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.cpu_ports = 0x10, /* can be configured as cpu port */
.port_cnt = 5, /* total cpu and user ports */
.num_tx_queues = 4,
.num_ipvs = 4,
.ops = &ksz8_dev_ops,
.phylink_mac_ops = &ksz8_phylink_mac_ops,
.ksz87xx_eee_link_erratum = true,
@ -1347,6 +1351,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.cpu_ports = 0x4, /* can be configured as cpu port */
.port_cnt = 3,
.num_tx_queues = 4,
.num_ipvs = 4,
.ops = &ksz8_dev_ops,
.phylink_mac_ops = &ksz8830_phylink_mac_ops,
.mib_names = ksz88xx_mib_names,
@ -1372,6 +1377,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 7, /* total physical port count */
.port_nirqs = 4,
.num_tx_queues = 4,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &ksz9477_dev_ops,
@ -1407,6 +1413,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 6, /* total physical port count */
.port_nirqs = 2,
.num_tx_queues = 4,
.num_ipvs = 8,
.ops = &ksz9477_dev_ops,
.phylink_mac_ops = &ksz9477_phylink_mac_ops,
.mib_names = ksz9477_mib_names,
@ -1440,6 +1447,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 7, /* total physical port count */
.port_nirqs = 2,
.num_tx_queues = 4,
.num_ipvs = 8,
.ops = &ksz9477_dev_ops,
.phylink_mac_ops = &ksz9477_phylink_mac_ops,
.mib_names = ksz9477_mib_names,
@ -1471,6 +1479,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 3, /* total port count */
.port_nirqs = 2,
.num_tx_queues = 4,
.num_ipvs = 8,
.ops = &ksz9477_dev_ops,
.phylink_mac_ops = &ksz9477_phylink_mac_ops,
.mib_names = ksz9477_mib_names,
@ -1498,6 +1507,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 3, /* total port count */
.port_nirqs = 3,
.num_tx_queues = 4,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &ksz9477_dev_ops,
@ -1527,6 +1537,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 7, /* total port count */
.port_nirqs = 3,
.num_tx_queues = 4,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &ksz9477_dev_ops,
@ -1561,6 +1572,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 7, /* total physical port count */
.port_nirqs = 3,
.num_tx_queues = 4,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &ksz9477_dev_ops,
@ -1593,6 +1605,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 5, /* total physical port count */
.port_nirqs = 6,
.num_tx_queues = 8,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &lan937x_dev_ops,
@ -1621,6 +1634,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 6, /* total physical port count */
.port_nirqs = 6,
.num_tx_queues = 8,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &lan937x_dev_ops,
@ -1649,6 +1663,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 8, /* total physical port count */
.port_nirqs = 6,
.num_tx_queues = 8,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &lan937x_dev_ops,
@ -1681,6 +1696,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 5, /* total physical port count */
.port_nirqs = 6,
.num_tx_queues = 8,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &lan937x_dev_ops,
@ -1713,6 +1729,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 8, /* total physical port count */
.port_nirqs = 6,
.num_tx_queues = 8,
.num_ipvs = 8,
.tc_cbs_supported = true,
.tc_ets_supported = true,
.ops = &lan937x_dev_ops,
@ -3565,7 +3582,7 @@ static int ksz_tc_ets_add(struct ksz_device *dev, int port,
for (tc_prio = 0; tc_prio < ARRAY_SIZE(p->priomap); tc_prio++) {
int queue;
if (tc_prio > KSZ9477_MAX_TC_PRIO)
if (tc_prio >= dev->info->num_ipvs)
break;
queue = ksz_ets_band_to_queue(p, p->priomap[tc_prio]);
@ -3607,7 +3624,7 @@ static int ksz_tc_ets_del(struct ksz_device *dev, int port)
/* Revert the queue mapping for TC-priority to its default setting on
* the chip.
*/
for (tc_prio = 0; tc_prio <= KSZ9477_MAX_TC_PRIO; tc_prio++) {
for (tc_prio = 0; tc_prio < dev->info->num_ipvs; tc_prio++) {
int queue;
queue = tc_prio >> s;

2
drivers/net/dsa/microchip/ksz_common.h
View File

@ -59,6 +59,7 @@ struct ksz_chip_data {
int port_cnt;
u8 port_nirqs;
u8 num_tx_queues;
u8 num_ipvs; /* number of Internal Priority Values */
bool tc_cbs_supported;
bool tc_ets_supported;
const struct ksz_dev_ops *ops;
@ -721,7 +722,6 @@ static inline int is_lan937x(struct ksz_device *dev)
#define KSZ9477_PORT_MRI_TC_MAP__4 0x0808
#define KSZ9477_PORT_TC_MAP_S 4
#define KSZ9477_MAX_TC_PRIO 7
/* CBS related registers */
#define REG_PORT_MTI_QUEUE_INDEX__4 0x0900