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Commit 92b54e09 authored by Jakub Kicinski's avatar Jakub Kicinski
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Merge branch 'net-dsa-qca8k-code-split-for-qca8k' 

Christian Marangi says:

====================
net: dsa: qca8k: code split for qca8k

This is needed ad ipq4019 SoC have an internal switch that is
based on qca8k with very minor changes. The general function is equal.

Because of this we split the driver to common and specific code.

As the common function needs to be moved to a different file to be
reused, we had to convert every remaining user of qca8k_read/write/rmw
to regmap variant.
We had also to generilized the special handling for the ethtool_stats
function that makes use of the autocast mib. (ipq4019 will have a
different tagger and use mmio so it could be quicker to use mmio instead
of automib feature)
And we had to convert the regmap read/write to bulk implementation to
drop the special function that makes use of it. This will be compatible
with ipq4019 and at the same time permits normal switch to use the eth
mgmt way to send the entire ATU table read/write in one go.
====================

Link: https://lore.kernel.org/r/20220727113523.19742-1-ansuelsmth@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parents 29192a17 9d1bcb1f
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drivers/net/dsa/qca/Makefile
View file @ 92b54e09
# SPDX-License-Identifier: GPL-2.0-only # SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_NET_DSA_AR9331) += ar9331.o obj-$(CONFIG_NET_DSA_AR9331) += ar9331.o
obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o
qca8k-y += qca8k-common.o qca8k-8xxx.o
drivers/net/dsa/qca/qca8k.c → drivers/net/dsa/qca/qca8k-8xxx.c
View file @ 92b54e09
...@@ -15,7 +15,6 @@ ...@@ -15,7 +15,6 @@
#include <linux/of_net.h> #include <linux/of_net.h>
#include <linux/of_mdio.h> #include <linux/of_mdio.h>
#include <linux/of_platform.h> #include <linux/of_platform.h>
#include <linux/if_bridge.h>
#include <linux/mdio.h> #include <linux/mdio.h>
#include <linux/phylink.h> #include <linux/phylink.h>
#include <linux/gpio/consumer.h> #include <linux/gpio/consumer.h>
...@@ -24,57 +23,6 @@ ...@@ -24,57 +23,6 @@
#include "qca8k.h" #include "qca8k.h"
#define MIB_DESC(_s, _o, _n) \
{ \
.size = (_s), \
.offset = (_o), \
.name = (_n), \
}
static const struct qca8k_mib_desc ar8327_mib[] = {
MIB_DESC(1, 0x00, "RxBroad"),
MIB_DESC(1, 0x04, "RxPause"),
MIB_DESC(1, 0x08, "RxMulti"),
MIB_DESC(1, 0x0c, "RxFcsErr"),
MIB_DESC(1, 0x10, "RxAlignErr"),
MIB_DESC(1, 0x14, "RxRunt"),
MIB_DESC(1, 0x18, "RxFragment"),
MIB_DESC(1, 0x1c, "Rx64Byte"),
MIB_DESC(1, 0x20, "Rx128Byte"),
MIB_DESC(1, 0x24, "Rx256Byte"),
MIB_DESC(1, 0x28, "Rx512Byte"),
MIB_DESC(1, 0x2c, "Rx1024Byte"),
MIB_DESC(1, 0x30, "Rx1518Byte"),
MIB_DESC(1, 0x34, "RxMaxByte"),
MIB_DESC(1, 0x38, "RxTooLong"),
MIB_DESC(2, 0x3c, "RxGoodByte"),
MIB_DESC(2, 0x44, "RxBadByte"),
MIB_DESC(1, 0x4c, "RxOverFlow"),
MIB_DESC(1, 0x50, "Filtered"),
MIB_DESC(1, 0x54, "TxBroad"),
MIB_DESC(1, 0x58, "TxPause"),
MIB_DESC(1, 0x5c, "TxMulti"),
MIB_DESC(1, 0x60, "TxUnderRun"),
MIB_DESC(1, 0x64, "Tx64Byte"),
MIB_DESC(1, 0x68, "Tx128Byte"),
MIB_DESC(1, 0x6c, "Tx256Byte"),
MIB_DESC(1, 0x70, "Tx512Byte"),
MIB_DESC(1, 0x74, "Tx1024Byte"),
MIB_DESC(1, 0x78, "Tx1518Byte"),
MIB_DESC(1, 0x7c, "TxMaxByte"),
MIB_DESC(1, 0x80, "TxOverSize"),
MIB_DESC(2, 0x84, "TxByte"),
MIB_DESC(1, 0x8c, "TxCollision"),
MIB_DESC(1, 0x90, "TxAbortCol"),
MIB_DESC(1, 0x94, "TxMultiCol"),
MIB_DESC(1, 0x98, "TxSingleCol"),
MIB_DESC(1, 0x9c, "TxExcDefer"),
MIB_DESC(1, 0xa0, "TxDefer"),
MIB_DESC(1, 0xa4, "TxLateCol"),
MIB_DESC(1, 0xa8, "RXUnicast"),
MIB_DESC(1, 0xac, "TXUnicast"),
};
static void static void
qca8k_split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page) qca8k_split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
{ {
...@@ -184,24 +132,6 @@ qca8k_set_page(struct qca8k_priv *priv, u16 page) ...@@ -184,24 +132,6 @@ qca8k_set_page(struct qca8k_priv *priv, u16 page)
return 0; return 0;
} }
static int
qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val)
{
return regmap_read(priv->regmap, reg, val);
}
static int
qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val)
{
return regmap_write(priv->regmap, reg, val);
}
static int
qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val)
{
return regmap_update_bits(priv->regmap, reg, mask, write_val);
}
static void qca8k_rw_reg_ack_handler(struct dsa_switch *ds, struct sk_buff *skb) static void qca8k_rw_reg_ack_handler(struct dsa_switch *ds, struct sk_buff *skb)
{ {
struct qca8k_mgmt_eth_data *mgmt_eth_data; struct qca8k_mgmt_eth_data *mgmt_eth_data;
...@@ -411,43 +341,6 @@ qca8k_regmap_update_bits_eth(struct qca8k_priv *priv, u32 reg, u32 mask, u32 wri ...@@ -411,43 +341,6 @@ qca8k_regmap_update_bits_eth(struct qca8k_priv *priv, u32 reg, u32 mask, u32 wri
return qca8k_write_eth(priv, reg, &val, sizeof(val)); return qca8k_write_eth(priv, reg, &val, sizeof(val));
} }
static int
qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
{
int i, count = len / sizeof(u32), ret;
if (priv->mgmt_master && !qca8k_read_eth(priv, reg, val, len))
return 0;
for (i = 0; i < count; i++) {
ret = regmap_read(priv->regmap, reg + (i * 4), val + i);
if (ret < 0)
return ret;
}
return 0;
}
static int
qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
{
int i, count = len / sizeof(u32), ret;
u32 tmp;
if (priv->mgmt_master && !qca8k_write_eth(priv, reg, val, len))
return 0;
for (i = 0; i < count; i++) {
tmp = val[i];
ret = regmap_write(priv->regmap, reg + (i * 4), tmp);
if (ret < 0)
return ret;
}
return 0;
}
static int static int
qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val) qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val)
{ {
...@@ -534,30 +427,6 @@ qca8k_regmap_update_bits(void *ctx, uint32_t reg, uint32_t mask, uint32_t write_ ...@@ -534,30 +427,6 @@ qca8k_regmap_update_bits(void *ctx, uint32_t reg, uint32_t mask, uint32_t write_
return ret; return ret;
} }
static const struct regmap_range qca8k_readable_ranges[] = {
regmap_reg_range(0x0000, 0x00e4), /* Global control */
regmap_reg_range(0x0100, 0x0168), /* EEE control */
regmap_reg_range(0x0200, 0x0270), /* Parser control */
regmap_reg_range(0x0400, 0x0454), /* ACL */
regmap_reg_range(0x0600, 0x0718), /* Lookup */
regmap_reg_range(0x0800, 0x0b70), /* QM */
regmap_reg_range(0x0c00, 0x0c80), /* PKT */
regmap_reg_range(0x0e00, 0x0e98), /* L3 */
regmap_reg_range(0x1000, 0x10ac), /* MIB - Port0 */
regmap_reg_range(0x1100, 0x11ac), /* MIB - Port1 */
regmap_reg_range(0x1200, 0x12ac), /* MIB - Port2 */
regmap_reg_range(0x1300, 0x13ac), /* MIB - Port3 */
regmap_reg_range(0x1400, 0x14ac), /* MIB - Port4 */
regmap_reg_range(0x1500, 0x15ac), /* MIB - Port5 */
regmap_reg_range(0x1600, 0x16ac), /* MIB - Port6 */
};
static const struct regmap_access_table qca8k_readable_table = {
.yes_ranges = qca8k_readable_ranges,
.n_yes_ranges = ARRAY_SIZE(qca8k_readable_ranges),
};
static struct regmap_config qca8k_regmap_config = { static struct regmap_config qca8k_regmap_config = {
.reg_bits = 16, .reg_bits = 16,
.val_bits = 32, .val_bits = 32,
...@@ -572,556 +441,177 @@ static struct regmap_config qca8k_regmap_config = { ...@@ -572,556 +441,177 @@ static struct regmap_config qca8k_regmap_config = {
}; };
static int static int
qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask) qca8k_phy_eth_busy_wait(struct qca8k_mgmt_eth_data *mgmt_eth_data,
{ struct sk_buff *read_skb, u32 *val)
u32 val;
return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
}
static int
qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
{ {
u32 reg[3]; struct sk_buff *skb = skb_copy(read_skb, GFP_KERNEL);
bool ack;
int ret; int ret;
/* load the ARL table into an array */ reinit_completion(&mgmt_eth_data->rw_done);
ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
if (ret)
return ret;
/* vid - 83:72 */
fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
/* aging - 67:64 */
fdb->aging = FIELD_GET(QCA8K_ATU_STATUS_MASK, reg[2]);
/* portmask - 54:48 */
fdb->port_mask = FIELD_GET(QCA8K_ATU_PORT_MASK, reg[1]);
/* mac - 47:0 */
fdb->mac[0] = FIELD_GET(QCA8K_ATU_ADDR0_MASK, reg[1]);
fdb->mac[1] = FIELD_GET(QCA8K_ATU_ADDR1_MASK, reg[1]);
fdb->mac[2] = FIELD_GET(QCA8K_ATU_ADDR2_MASK, reg[0]);
fdb->mac[3] = FIELD_GET(QCA8K_ATU_ADDR3_MASK, reg[0]);
fdb->mac[4] = FIELD_GET(QCA8K_ATU_ADDR4_MASK, reg[0]);
fdb->mac[5] = FIELD_GET(QCA8K_ATU_ADDR5_MASK, reg[0]);
return 0; /* Increment seq_num and set it in the copy pkt */
} mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(skb, mgmt_eth_data->seq);
mgmt_eth_data->ack = false;
static void dev_queue_xmit(skb);
qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask, const u8 *mac,
u8 aging)
{
u32 reg[3] = { 0 };
/* vid - 83:72 */
reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
/* aging - 67:64 */
reg[2] |= FIELD_PREP(QCA8K_ATU_STATUS_MASK, aging);
/* portmask - 54:48 */
reg[1] = FIELD_PREP(QCA8K_ATU_PORT_MASK, port_mask);
/* mac - 47:0 */
reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR0_MASK, mac[0]);
reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR1_MASK, mac[1]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR2_MASK, mac[2]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR3_MASK, mac[3]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR4_MASK, mac[4]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
/* load the array into the ARL table */
qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
}
static int ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd, int port) QCA8K_ETHERNET_TIMEOUT);
{
u32 reg;
int ret;
/* Set the command and FDB index */ ack = mgmt_eth_data->ack;
reg = QCA8K_ATU_FUNC_BUSY;
reg |= cmd;
if (port >= 0) {
reg |= QCA8K_ATU_FUNC_PORT_EN;
reg |= FIELD_PREP(QCA8K_ATU_FUNC_PORT_MASK, port);
}
/* Write the function register triggering the table access */ if (ret <= 0)
ret = qca8k_write(priv, QCA8K_REG_ATU_FUNC, reg); return -ETIMEDOUT;
if (ret)
return ret;
/* wait for completion */ if (!ack)
ret = qca8k_busy_wait(priv, QCA8K_REG_ATU_FUNC, QCA8K_ATU_FUNC_BUSY); return -EINVAL;
if (ret)
return ret;
/* Check for table full violation when adding an entry */ *val = mgmt_eth_data->data[0];
if (cmd == QCA8K_FDB_LOAD) {
ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, &reg);
if (ret < 0)
return ret;
if (reg & QCA8K_ATU_FUNC_FULL)
return -1;
}
return 0; return 0;
} }
static int static int
qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb, int port) qca8k_phy_eth_command(struct qca8k_priv *priv, bool read, int phy,
{ int regnum, u16 data)
int ret;
qca8k_fdb_write(priv, fdb->vid, fdb->port_mask, fdb->mac, fdb->aging);
ret = qca8k_fdb_access(priv, QCA8K_FDB_NEXT, port);
if (ret < 0)
return ret;
return qca8k_fdb_read(priv, fdb);
}
static int
qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac, u16 port_mask,
u16 vid, u8 aging)
{ {
int ret; struct sk_buff *write_skb, *clear_skb, *read_skb;
struct qca8k_mgmt_eth_data *mgmt_eth_data;
mutex_lock(&priv->reg_mutex); u32 write_val, clear_val = 0, val;
qca8k_fdb_write(priv, vid, port_mask, mac, aging); struct net_device *mgmt_master;
ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1); int ret, ret1;
mutex_unlock(&priv->reg_mutex); bool ack;
return ret;
}
static int if (regnum >= QCA8K_MDIO_MASTER_MAX_REG)
qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac, u16 port_mask, u16 vid) return -EINVAL;
{
int ret;
mutex_lock(&priv->reg_mutex); mgmt_eth_data = &priv->mgmt_eth_data;
qca8k_fdb_write(priv, vid, port_mask, mac, 0);
ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
mutex_unlock(&priv->reg_mutex);
return ret; write_val = QCA8K_MDIO_MASTER_BUSY | QCA8K_MDIO_MASTER_EN |
} QCA8K_MDIO_MASTER_PHY_ADDR(phy) |
QCA8K_MDIO_MASTER_REG_ADDR(regnum);
static void if (read) {
qca8k_fdb_flush(struct qca8k_priv *priv) write_val |= QCA8K_MDIO_MASTER_READ;
{ } else {
mutex_lock(&priv->reg_mutex); write_val |= QCA8K_MDIO_MASTER_WRITE;
qca8k_fdb_access(priv, QCA8K_FDB_FLUSH, -1); write_val |= QCA8K_MDIO_MASTER_DATA(data);
mutex_unlock(&priv->reg_mutex); }
}
static int /* Prealloc all the needed skb before the lock */
qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask, write_skb = qca8k_alloc_mdio_header(MDIO_WRITE, QCA8K_MDIO_MASTER_CTRL, &write_val,
const u8 *mac, u16 vid) QCA8K_ETHERNET_PHY_PRIORITY, sizeof(write_val));
{ if (!write_skb)
struct qca8k_fdb fdb = { 0 }; return -ENOMEM;
int ret;
mutex_lock(&priv->reg_mutex); clear_skb = qca8k_alloc_mdio_header(MDIO_WRITE, QCA8K_MDIO_MASTER_CTRL, &clear_val,
QCA8K_ETHERNET_PHY_PRIORITY, sizeof(clear_val));
if (!clear_skb) {
ret = -ENOMEM;
goto err_clear_skb;
}
qca8k_fdb_write(priv, vid, 0, mac, 0); read_skb = qca8k_alloc_mdio_header(MDIO_READ, QCA8K_MDIO_MASTER_CTRL, &clear_val,
ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1); QCA8K_ETHERNET_PHY_PRIORITY, sizeof(clear_val));
if (ret < 0) if (!read_skb) {
goto exit; ret = -ENOMEM;
goto err_read_skb;
}
ret = qca8k_fdb_read(priv, &fdb); /* Actually start the request:
if (ret < 0) * 1. Send mdio master packet
goto exit; * 2. Busy Wait for mdio master command
* 3. Get the data if we are reading
* 4. Reset the mdio master (even with error)
*/
mutex_lock(&mgmt_eth_data->mutex);
/* Rule exist. Delete first */ /* Check if mgmt_master is operational */
if (!fdb.aging) { mgmt_master = priv->mgmt_master;
ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1); if (!mgmt_master) {
if (ret) mutex_unlock(&mgmt_eth_data->mutex);
goto exit; ret = -EINVAL;
goto err_mgmt_master;
} }
/* Add port to fdb portmask */ read_skb->dev = mgmt_master;
fdb.port_mask |= port_mask; clear_skb->dev = mgmt_master;
write_skb->dev = mgmt_master;
qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging); reinit_completion(&mgmt_eth_data->rw_done);
ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
exit: /* Increment seq_num and set it in the write pkt */
mutex_unlock(&priv->reg_mutex); mgmt_eth_data->seq++;
return ret; qca8k_mdio_header_fill_seq_num(write_skb, mgmt_eth_data->seq);
} mgmt_eth_data->ack = false;
static int dev_queue_xmit(write_skb);
qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
const u8 *mac, u16 vid)
{
struct qca8k_fdb fdb = { 0 };
int ret;
mutex_lock(&priv->reg_mutex); ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
QCA8K_ETHERNET_TIMEOUT);
qca8k_fdb_write(priv, vid, 0, mac, 0); ack = mgmt_eth_data->ack;
ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
if (ret < 0) if (ret <= 0) {
ret = -ETIMEDOUT;
kfree_skb(read_skb);
goto exit; goto exit;
}
/* Rule doesn't exist. Why delete? */ if (!ack) {
if (!fdb.aging) {
ret = -EINVAL; ret = -EINVAL;
kfree_skb(read_skb);
goto exit; goto exit;
} }
ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1); ret = read_poll_timeout(qca8k_phy_eth_busy_wait, ret1,
if (ret) !(val & QCA8K_MDIO_MASTER_BUSY), 0,
goto exit; QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC, false,
mgmt_eth_data, read_skb, &val);
/* Only port in the rule is this port. Don't re insert */ if (ret < 0 && ret1 < 0) {
if (fdb.port_mask == port_mask) ret = ret1;
goto exit; goto exit;
}
/* Remove port from port mask */ if (read) {
fdb.port_mask &= ~port_mask; reinit_completion(&mgmt_eth_data->rw_done);
qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging); /* Increment seq_num and set it in the read pkt */
ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1); mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(read_skb, mgmt_eth_data->seq);
mgmt_eth_data->ack = false;
exit: dev_queue_xmit(read_skb);
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
qca8k_vlan_access(struct qca8k_priv *priv, enum qca8k_vlan_cmd cmd, u16 vid) QCA8K_ETHERNET_TIMEOUT);
{
u32 reg;
int ret;
/* Set the command and VLAN index */ ack = mgmt_eth_data->ack;
reg = QCA8K_VTU_FUNC1_BUSY;
reg |= cmd;
reg |= FIELD_PREP(QCA8K_VTU_FUNC1_VID_MASK, vid);
/* Write the function register triggering the table access */ if (ret <= 0) {
ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg); ret = -ETIMEDOUT;
if (ret) goto exit;
return ret; }
/* wait for completion */ if (!ack) {
ret = qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY); ret = -EINVAL;
if (ret) goto exit;
return ret; }
/* Check for table full violation when adding an entry */ ret = mgmt_eth_data->data[0] & QCA8K_MDIO_MASTER_DATA_MASK;
if (cmd == QCA8K_VLAN_LOAD) { } else {
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, &reg); kfree_skb(read_skb);
if (ret < 0)
return ret;
if (reg & QCA8K_VTU_FUNC1_FULL)
return -ENOMEM;
} }
exit:
reinit_completion(&mgmt_eth_data->rw_done);
return 0; /* Increment seq_num and set it in the clear pkt */
} mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(clear_skb, mgmt_eth_data->seq);
static int mgmt_eth_data->ack = false;
qca8k_vlan_add(struct qca8k_priv *priv, u8 port, u16 vid, bool untagged)
{
u32 reg;
int ret;
/*
We do the right thing with VLAN 0 and treat it as untagged while
preserving the tag on egress.
*/
if (vid == 0)
return 0;
mutex_lock(&priv->reg_mutex);
ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
if (ret < 0)
goto out;
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
if (ret < 0)
goto out;
reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
if (untagged)
reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_UNTAG(port);
else
reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_TAG(port);
ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
if (ret)
goto out;
ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
out:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int
qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
{
u32 reg, mask;
int ret, i;
bool del;
mutex_lock(&priv->reg_mutex);
ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
if (ret < 0)
goto out;
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
if (ret < 0)
goto out;
reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(port);
/* Check if we're the last member to be removed */
del = true;
for (i = 0; i < QCA8K_NUM_PORTS; i++) {
mask = QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(i);
if ((reg & mask) != mask) {
del = false;
break;
}
}
if (del) {
ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
} else {
ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
if (ret)
goto out;
ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
}
out:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int
qca8k_mib_init(struct qca8k_priv *priv)
{
int ret;
mutex_lock(&priv->reg_mutex);
ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
QCA8K_MIB_BUSY);
if (ret)
goto exit;
ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
if (ret)
goto exit;
ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
if (ret)
goto exit;
ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
exit:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static void
qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
{
u32 mask = QCA8K_PORT_STATUS_TXMAC | QCA8K_PORT_STATUS_RXMAC;
/* Port 0 and 6 have no internal PHY */
if (port > 0 && port < 6)
mask |= QCA8K_PORT_STATUS_LINK_AUTO;
if (enable)
regmap_set_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
else
regmap_clear_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
}
static int
qca8k_phy_eth_busy_wait(struct qca8k_mgmt_eth_data *mgmt_eth_data,
struct sk_buff *read_skb, u32 *val)
{
struct sk_buff *skb = skb_copy(read_skb, GFP_KERNEL);
bool ack;
int ret;
reinit_completion(&mgmt_eth_data->rw_done);
/* Increment seq_num and set it in the copy pkt */
mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(skb, mgmt_eth_data->seq);
mgmt_eth_data->ack = false;
dev_queue_xmit(skb);
ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
QCA8K_ETHERNET_TIMEOUT);
ack = mgmt_eth_data->ack;
if (ret <= 0)
return -ETIMEDOUT;
if (!ack)
return -EINVAL;
*val = mgmt_eth_data->data[0];
return 0;
}
static int
qca8k_phy_eth_command(struct qca8k_priv *priv, bool read, int phy,
int regnum, u16 data)
{
struct sk_buff *write_skb, *clear_skb, *read_skb;
struct qca8k_mgmt_eth_data *mgmt_eth_data;
u32 write_val, clear_val = 0, val;
struct net_device *mgmt_master;
int ret, ret1;
bool ack;
if (regnum >= QCA8K_MDIO_MASTER_MAX_REG)
return -EINVAL;
mgmt_eth_data = &priv->mgmt_eth_data;
write_val = QCA8K_MDIO_MASTER_BUSY | QCA8K_MDIO_MASTER_EN |
QCA8K_MDIO_MASTER_PHY_ADDR(phy) |
QCA8K_MDIO_MASTER_REG_ADDR(regnum);
if (read) {
write_val |= QCA8K_MDIO_MASTER_READ;
} else {
write_val |= QCA8K_MDIO_MASTER_WRITE;
write_val |= QCA8K_MDIO_MASTER_DATA(data);
}
/* Prealloc all the needed skb before the lock */
write_skb = qca8k_alloc_mdio_header(MDIO_WRITE, QCA8K_MDIO_MASTER_CTRL, &write_val,
QCA8K_ETHERNET_PHY_PRIORITY, sizeof(write_val));
if (!write_skb)
return -ENOMEM;
clear_skb = qca8k_alloc_mdio_header(MDIO_WRITE, QCA8K_MDIO_MASTER_CTRL, &clear_val,
QCA8K_ETHERNET_PHY_PRIORITY, sizeof(clear_val));
if (!clear_skb) {
ret = -ENOMEM;
goto err_clear_skb;
}
read_skb = qca8k_alloc_mdio_header(MDIO_READ, QCA8K_MDIO_MASTER_CTRL, &clear_val,
QCA8K_ETHERNET_PHY_PRIORITY, sizeof(clear_val));
if (!read_skb) {
ret = -ENOMEM;
goto err_read_skb;
}
/* Actually start the request:
* 1. Send mdio master packet
* 2. Busy Wait for mdio master command
* 3. Get the data if we are reading
* 4. Reset the mdio master (even with error)
*/
mutex_lock(&mgmt_eth_data->mutex);
/* Check if mgmt_master is operational */
mgmt_master = priv->mgmt_master;
if (!mgmt_master) {
mutex_unlock(&mgmt_eth_data->mutex);
ret = -EINVAL;
goto err_mgmt_master;
}
read_skb->dev = mgmt_master;
clear_skb->dev = mgmt_master;
write_skb->dev = mgmt_master;
reinit_completion(&mgmt_eth_data->rw_done);
/* Increment seq_num and set it in the write pkt */
mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(write_skb, mgmt_eth_data->seq);
mgmt_eth_data->ack = false;
dev_queue_xmit(write_skb);
ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
QCA8K_ETHERNET_TIMEOUT);
ack = mgmt_eth_data->ack;
if (ret <= 0) {
ret = -ETIMEDOUT;
kfree_skb(read_skb);
goto exit;
}
if (!ack) {
ret = -EINVAL;
kfree_skb(read_skb);
goto exit;
}
ret = read_poll_timeout(qca8k_phy_eth_busy_wait, ret1,
!(val & QCA8K_MDIO_MASTER_BUSY), 0,
QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC, false,
mgmt_eth_data, read_skb, &val);
if (ret < 0 && ret1 < 0) {
ret = ret1;
goto exit;
}
if (read) {
reinit_completion(&mgmt_eth_data->rw_done);
/* Increment seq_num and set it in the read pkt */
mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(read_skb, mgmt_eth_data->seq);
mgmt_eth_data->ack = false;
dev_queue_xmit(read_skb);
ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
QCA8K_ETHERNET_TIMEOUT);
ack = mgmt_eth_data->ack;
if (ret <= 0) {
ret = -ETIMEDOUT;
goto exit;
}
if (!ack) {
ret = -EINVAL;
goto exit;
}
ret = mgmt_eth_data->data[0] & QCA8K_MDIO_MASTER_DATA_MASK;
} else {
kfree_skb(read_skb);
}
exit:
reinit_completion(&mgmt_eth_data->rw_done);
/* Increment seq_num and set it in the clear pkt */
mgmt_eth_data->seq++;
qca8k_mdio_header_fill_seq_num(clear_skb, mgmt_eth_data->seq);
mgmt_eth_data->ack = false;
dev_queue_xmit(clear_skb); dev_queue_xmit(clear_skb);
...@@ -1462,8 +952,8 @@ static int qca8k_find_cpu_port(struct dsa_switch *ds) ...@@ -1462,8 +952,8 @@ static int qca8k_find_cpu_port(struct dsa_switch *ds)
static int static int
qca8k_setup_of_pws_reg(struct qca8k_priv *priv) qca8k_setup_of_pws_reg(struct qca8k_priv *priv)
{ {
const struct qca8k_match_data *data = priv->info;
struct device_node *node = priv->dev->of_node; struct device_node *node = priv->dev->of_node;
const struct qca8k_match_data *data;
u32 val = 0; u32 val = 0;
int ret; int ret;
...@@ -1472,8 +962,6 @@ qca8k_setup_of_pws_reg(struct qca8k_priv *priv) ...@@ -1472,8 +962,6 @@ qca8k_setup_of_pws_reg(struct qca8k_priv *priv)
* Should be applied by default but we set this just to make sure. * Should be applied by default but we set this just to make sure.
*/ */
if (priv->switch_id == QCA8K_ID_QCA8327) { if (priv->switch_id == QCA8K_ID_QCA8327) {
data = of_device_get_match_data(priv->dev);
/* Set the correct package of 148 pin for QCA8327 */ /* Set the correct package of 148 pin for QCA8327 */
if (data->reduced_package) if (data->reduced_package)
val |= QCA8327_PWS_PACKAGE148_EN; val |= QCA8327_PWS_PACKAGE148_EN;
...@@ -1926,693 +1414,158 @@ static int qca8k_pcs_config(struct phylink_pcs *pcs, unsigned int mode, ...@@ -1926,693 +1414,158 @@ static int qca8k_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
if (priv->ports_config.sgmii_enable_pll) if (priv->ports_config.sgmii_enable_pll)
val |= QCA8K_SGMII_EN_PLL | QCA8K_SGMII_EN_RX | val |= QCA8K_SGMII_EN_PLL | QCA8K_SGMII_EN_RX |
QCA8K_SGMII_EN_TX; QCA8K_SGMII_EN_TX;
if (dsa_is_cpu_port(priv->ds, port)) {
/* CPU port, we're talking to the CPU MAC, be a PHY */
val &= ~QCA8K_SGMII_MODE_CTRL_MASK;
val |= QCA8K_SGMII_MODE_CTRL_PHY;
} else if (interface == PHY_INTERFACE_MODE_SGMII) {
val &= ~QCA8K_SGMII_MODE_CTRL_MASK;
val |= QCA8K_SGMII_MODE_CTRL_MAC;
} else if (interface == PHY_INTERFACE_MODE_1000BASEX) {
val &= ~QCA8K_SGMII_MODE_CTRL_MASK;
val |= QCA8K_SGMII_MODE_CTRL_BASEX;
}
qca8k_write(priv, QCA8K_REG_SGMII_CTRL, val);
/* From original code is reported port instability as SGMII also
* require delay set. Apply advised values here or take them from DT.
*/
if (interface == PHY_INTERFACE_MODE_SGMII)
qca8k_mac_config_setup_internal_delay(priv, cpu_port_index, reg);
/* For qca8327/qca8328/qca8334/qca8338 sgmii is unique and
* falling edge is set writing in the PORT0 PAD reg
*/
if (priv->switch_id == QCA8K_ID_QCA8327 ||
priv->switch_id == QCA8K_ID_QCA8337)
reg = QCA8K_REG_PORT0_PAD_CTRL;
val = 0;
/* SGMII Clock phase configuration */
if (priv->ports_config.sgmii_rx_clk_falling_edge)
val |= QCA8K_PORT0_PAD_SGMII_RXCLK_FALLING_EDGE;
if (priv->ports_config.sgmii_tx_clk_falling_edge)
val |= QCA8K_PORT0_PAD_SGMII_TXCLK_FALLING_EDGE;
if (val)
ret = qca8k_rmw(priv, reg,
QCA8K_PORT0_PAD_SGMII_RXCLK_FALLING_EDGE |
QCA8K_PORT0_PAD_SGMII_TXCLK_FALLING_EDGE,
val);
return 0;
}
static void qca8k_pcs_an_restart(struct phylink_pcs *pcs)
{
}
static const struct phylink_pcs_ops qca8k_pcs_ops = {
.pcs_get_state = qca8k_pcs_get_state,
.pcs_config = qca8k_pcs_config,
.pcs_an_restart = qca8k_pcs_an_restart,
};
static void qca8k_setup_pcs(struct qca8k_priv *priv, struct qca8k_pcs *qpcs,
int port)
{
qpcs->pcs.ops = &qca8k_pcs_ops;
/* We don't have interrupts for link changes, so we need to poll */
qpcs->pcs.poll = true;
qpcs->priv = priv;
qpcs->port = port;
}
static void
qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data)
{
const struct qca8k_match_data *match_data;
struct qca8k_priv *priv = ds->priv;
int i;
if (stringset != ETH_SS_STATS)
return;
match_data = of_device_get_match_data(priv->dev);
for (i = 0; i < match_data->mib_count; i++)
strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
ETH_GSTRING_LEN);
}
static void qca8k_mib_autocast_handler(struct dsa_switch *ds, struct sk_buff *skb)
{
const struct qca8k_match_data *match_data;
struct qca8k_mib_eth_data *mib_eth_data;
struct qca8k_priv *priv = ds->priv;
const struct qca8k_mib_desc *mib;
struct mib_ethhdr *mib_ethhdr;
int i, mib_len, offset = 0;
u64 *data;
u8 port;
mib_ethhdr = (struct mib_ethhdr *)skb_mac_header(skb);
mib_eth_data = &priv->mib_eth_data;
/* The switch autocast every port. Ignore other packet and
* parse only the requested one.
*/
port = FIELD_GET(QCA_HDR_RECV_SOURCE_PORT, ntohs(mib_ethhdr->hdr));
if (port != mib_eth_data->req_port)
goto exit;
match_data = device_get_match_data(priv->dev);
data = mib_eth_data->data;
for (i = 0; i < match_data->mib_count; i++) {
mib = &ar8327_mib[i];
/* First 3 mib are present in the skb head */
if (i < 3) {
data[i] = mib_ethhdr->data[i];
continue;
}
mib_len = sizeof(uint32_t);
/* Some mib are 64 bit wide */
if (mib->size == 2)
mib_len = sizeof(uint64_t);
/* Copy the mib value from packet to the */
memcpy(data + i, skb->data + offset, mib_len);
/* Set the offset for the next mib */
offset += mib_len;
}
exit:
/* Complete on receiving all the mib packet */
if (refcount_dec_and_test(&mib_eth_data->port_parsed))
complete(&mib_eth_data->rw_done);
}
static int
qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
{
struct dsa_port *dp = dsa_to_port(ds, port);
struct qca8k_mib_eth_data *mib_eth_data;
struct qca8k_priv *priv = ds->priv;
int ret;
mib_eth_data = &priv->mib_eth_data;
mutex_lock(&mib_eth_data->mutex);
reinit_completion(&mib_eth_data->rw_done);
mib_eth_data->req_port = dp->index;
mib_eth_data->data = data;
refcount_set(&mib_eth_data->port_parsed, QCA8K_NUM_PORTS);
mutex_lock(&priv->reg_mutex);
/* Send mib autocast request */
ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_CAST) |
QCA8K_MIB_BUSY);
mutex_unlock(&priv->reg_mutex);
if (ret)
goto exit;
ret = wait_for_completion_timeout(&mib_eth_data->rw_done, QCA8K_ETHERNET_TIMEOUT);
exit:
mutex_unlock(&mib_eth_data->mutex);
return ret;
}
static void
qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
uint64_t *data)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
const struct qca8k_match_data *match_data;
const struct qca8k_mib_desc *mib;
u32 reg, i, val;
u32 hi = 0;
int ret;
if (priv->mgmt_master &&
qca8k_get_ethtool_stats_eth(ds, port, data) > 0)
return;
match_data = of_device_get_match_data(priv->dev);
for (i = 0; i < match_data->mib_count; i++) {
mib = &ar8327_mib[i];
reg = QCA8K_PORT_MIB_COUNTER(port) + mib->offset;
ret = qca8k_read(priv, reg, &val);
if (ret < 0)
continue;
if (mib->size == 2) {
ret = qca8k_read(priv, reg + 4, &hi);
if (ret < 0)
continue;
}
data[i] = val;
if (mib->size == 2)
data[i] |= (u64)hi << 32;
}
}
static int
qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
const struct qca8k_match_data *match_data;
struct qca8k_priv *priv = ds->priv;
if (sset != ETH_SS_STATS)
return 0;
match_data = of_device_get_match_data(priv->dev);
return match_data->mib_count;
}
static int
qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
u32 lpi_en = QCA8K_REG_EEE_CTRL_LPI_EN(port);
u32 reg;
int ret;
mutex_lock(&priv->reg_mutex);
ret = qca8k_read(priv, QCA8K_REG_EEE_CTRL, &reg);
if (ret < 0)
goto exit;
if (eee->eee_enabled)
reg |= lpi_en;
else
reg &= ~lpi_en;
ret = qca8k_write(priv, QCA8K_REG_EEE_CTRL, reg);
exit:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int
qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
{
/* Nothing to do on the port's MAC */
return 0;
}
static void
qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
u32 stp_state;
switch (state) {
case BR_STATE_DISABLED:
stp_state = QCA8K_PORT_LOOKUP_STATE_DISABLED;
break;
case BR_STATE_BLOCKING:
stp_state = QCA8K_PORT_LOOKUP_STATE_BLOCKING;
break;
case BR_STATE_LISTENING:
stp_state = QCA8K_PORT_LOOKUP_STATE_LISTENING;
break;
case BR_STATE_LEARNING:
stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
break;
case BR_STATE_FORWARDING:
default:
stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
break;
}
qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
}
static int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
struct dsa_bridge bridge,
bool *tx_fwd_offload,
struct netlink_ext_ack *extack)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
int port_mask, cpu_port;
int i, ret;
cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
port_mask = BIT(cpu_port);
for (i = 0; i < QCA8K_NUM_PORTS; i++) {
if (dsa_is_cpu_port(ds, i))
continue;
if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
continue;
/* Add this port to the portvlan mask of the other ports
* in the bridge
*/
ret = regmap_set_bits(priv->regmap,
QCA8K_PORT_LOOKUP_CTRL(i),
BIT(port));
if (ret)
return ret;
if (i != port)
port_mask |= BIT(i);
}
/* Add all other ports to this ports portvlan mask */
ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_MEMBER, port_mask);
return ret;
}
static void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
struct dsa_bridge bridge)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
int cpu_port, i;
cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
for (i = 0; i < QCA8K_NUM_PORTS; i++) {
if (dsa_is_cpu_port(ds, i))
continue;
if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
continue;
/* Remove this port to the portvlan mask of the other ports
* in the bridge
*/
regmap_clear_bits(priv->regmap,
QCA8K_PORT_LOOKUP_CTRL(i),
BIT(port));
}
/* Set the cpu port to be the only one in the portvlan mask of
* this port
*/
qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
}
static void
qca8k_port_fast_age(struct dsa_switch *ds, int port)
{
struct qca8k_priv *priv = ds->priv;
mutex_lock(&priv->reg_mutex);
qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
mutex_unlock(&priv->reg_mutex);
}
static int
qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
{
struct qca8k_priv *priv = ds->priv;
unsigned int secs = msecs / 1000;
u32 val;
/* AGE_TIME reg is set in 7s step */
val = secs / 7;
/* Handle case with 0 as val to NOT disable
* learning
*/
if (!val)
val = 1;
return regmap_update_bits(priv->regmap, QCA8K_REG_ATU_CTRL, QCA8K_ATU_AGE_TIME_MASK,
QCA8K_ATU_AGE_TIME(val));
}
static int
qca8k_port_enable(struct dsa_switch *ds, int port,
struct phy_device *phy)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
qca8k_port_set_status(priv, port, 1);
priv->port_enabled_map |= BIT(port);
if (dsa_is_user_port(ds, port))
phy_support_asym_pause(phy);
return 0;
}
static void
qca8k_port_disable(struct dsa_switch *ds, int port)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
qca8k_port_set_status(priv, port, 0);
priv->port_enabled_map &= ~BIT(port);
}
static int
qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
{
struct qca8k_priv *priv = ds->priv;
int ret;
/* We have only have a general MTU setting.
* DSA always set the CPU port's MTU to the largest MTU of the slave
* ports.
* Setting MTU just for the CPU port is sufficient to correctly set a
* value for every port.
*/
if (!dsa_is_cpu_port(ds, port))
return 0;
/* To change the MAX_FRAME_SIZE the cpu ports must be off or
* the switch panics.
* Turn off both cpu ports before applying the new value to prevent
* this.
*/
if (priv->port_enabled_map & BIT(0))
qca8k_port_set_status(priv, 0, 0);
if (priv->port_enabled_map & BIT(6))
qca8k_port_set_status(priv, 6, 0);
/* Include L2 header / FCS length */
ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu + ETH_HLEN + ETH_FCS_LEN);
if (priv->port_enabled_map & BIT(0))
qca8k_port_set_status(priv, 0, 1);
if (priv->port_enabled_map & BIT(6))
qca8k_port_set_status(priv, 6, 1);
return ret;
}
static int
qca8k_port_max_mtu(struct dsa_switch *ds, int port)
{
return QCA8K_MAX_MTU;
}
static int
qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
u16 port_mask, u16 vid)
{
/* Set the vid to the port vlan id if no vid is set */
if (!vid)
vid = QCA8K_PORT_VID_DEF;
return qca8k_fdb_add(priv, addr, port_mask, vid,
QCA8K_ATU_STATUS_STATIC);
}
static int if (dsa_is_cpu_port(priv->ds, port)) {
qca8k_port_fdb_add(struct dsa_switch *ds, int port, /* CPU port, we're talking to the CPU MAC, be a PHY */
const unsigned char *addr, u16 vid, val &= ~QCA8K_SGMII_MODE_CTRL_MASK;
struct dsa_db db) val |= QCA8K_SGMII_MODE_CTRL_PHY;
{ } else if (interface == PHY_INTERFACE_MODE_SGMII) {
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; val &= ~QCA8K_SGMII_MODE_CTRL_MASK;
u16 port_mask = BIT(port); val |= QCA8K_SGMII_MODE_CTRL_MAC;
} else if (interface == PHY_INTERFACE_MODE_1000BASEX) {
val &= ~QCA8K_SGMII_MODE_CTRL_MASK;
val |= QCA8K_SGMII_MODE_CTRL_BASEX;
}
return qca8k_port_fdb_insert(priv, addr, port_mask, vid); qca8k_write(priv, QCA8K_REG_SGMII_CTRL, val);
}
static int /* From original code is reported port instability as SGMII also
qca8k_port_fdb_del(struct dsa_switch *ds, int port, * require delay set. Apply advised values here or take them from DT.
const unsigned char *addr, u16 vid, */
struct dsa_db db) if (interface == PHY_INTERFACE_MODE_SGMII)
{ qca8k_mac_config_setup_internal_delay(priv, cpu_port_index, reg);
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; /* For qca8327/qca8328/qca8334/qca8338 sgmii is unique and
u16 port_mask = BIT(port); * falling edge is set writing in the PORT0 PAD reg
*/
if (priv->switch_id == QCA8K_ID_QCA8327 ||
priv->switch_id == QCA8K_ID_QCA8337)
reg = QCA8K_REG_PORT0_PAD_CTRL;
if (!vid) val = 0;
vid = QCA8K_PORT_VID_DEF;
return qca8k_fdb_del(priv, addr, port_mask, vid); /* SGMII Clock phase configuration */
} if (priv->ports_config.sgmii_rx_clk_falling_edge)
val |= QCA8K_PORT0_PAD_SGMII_RXCLK_FALLING_EDGE;
static int if (priv->ports_config.sgmii_tx_clk_falling_edge)
qca8k_port_fdb_dump(struct dsa_switch *ds, int port, val |= QCA8K_PORT0_PAD_SGMII_TXCLK_FALLING_EDGE;
dsa_fdb_dump_cb_t *cb, void *data)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
struct qca8k_fdb _fdb = { 0 };
int cnt = QCA8K_NUM_FDB_RECORDS;
bool is_static;
int ret = 0;
mutex_lock(&priv->reg_mutex); if (val)
while (cnt-- && !qca8k_fdb_next(priv, &_fdb, port)) { ret = qca8k_rmw(priv, reg,
if (!_fdb.aging) QCA8K_PORT0_PAD_SGMII_RXCLK_FALLING_EDGE |
break; QCA8K_PORT0_PAD_SGMII_TXCLK_FALLING_EDGE,
is_static = (_fdb.aging == QCA8K_ATU_STATUS_STATIC); val);
ret = cb(_fdb.mac, _fdb.vid, is_static, data);
if (ret)
break;
}
mutex_unlock(&priv->reg_mutex);
return 0; return 0;
} }
static int static void qca8k_pcs_an_restart(struct phylink_pcs *pcs)
qca8k_port_mdb_add(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_mdb *mdb,
struct dsa_db db)
{ {
struct qca8k_priv *priv = ds->priv;
const u8 *addr = mdb->addr;
u16 vid = mdb->vid;
return qca8k_fdb_search_and_insert(priv, BIT(port), addr, vid);
} }
static int static const struct phylink_pcs_ops qca8k_pcs_ops = {
qca8k_port_mdb_del(struct dsa_switch *ds, int port, .pcs_get_state = qca8k_pcs_get_state,
const struct switchdev_obj_port_mdb *mdb, .pcs_config = qca8k_pcs_config,
struct dsa_db db) .pcs_an_restart = qca8k_pcs_an_restart,
};
static void qca8k_setup_pcs(struct qca8k_priv *priv, struct qca8k_pcs *qpcs,
int port)
{ {
struct qca8k_priv *priv = ds->priv; qpcs->pcs.ops = &qca8k_pcs_ops;
const u8 *addr = mdb->addr;
u16 vid = mdb->vid;
return qca8k_fdb_search_and_del(priv, BIT(port), addr, vid); /* We don't have interrupts for link changes, so we need to poll */
qpcs->pcs.poll = true;
qpcs->priv = priv;
qpcs->port = port;
} }
static int static void qca8k_mib_autocast_handler(struct dsa_switch *ds, struct sk_buff *skb)
qca8k_port_mirror_add(struct dsa_switch *ds, int port,
struct dsa_mall_mirror_tc_entry *mirror,
bool ingress, struct netlink_ext_ack *extack)
{ {
struct qca8k_mib_eth_data *mib_eth_data;
struct qca8k_priv *priv = ds->priv; struct qca8k_priv *priv = ds->priv;
int monitor_port, ret; const struct qca8k_mib_desc *mib;
u32 reg, val; struct mib_ethhdr *mib_ethhdr;
int i, mib_len, offset = 0;
/* Check for existent entry */ u64 *data;
if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port)) u8 port;
return -EEXIST;
ret = regmap_read(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, &val); mib_ethhdr = (struct mib_ethhdr *)skb_mac_header(skb);
if (ret) mib_eth_data = &priv->mib_eth_data;
return ret;
/* QCA83xx can have only one port set to mirror mode. /* The switch autocast every port. Ignore other packet and
* Check that the correct port is requested and return error otherwise. * parse only the requested one.
* When no mirror port is set, the values is set to 0xF
*/ */
monitor_port = FIELD_GET(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val); port = FIELD_GET(QCA_HDR_RECV_SOURCE_PORT, ntohs(mib_ethhdr->hdr));
if (monitor_port != 0xF && monitor_port != mirror->to_local_port) if (port != mib_eth_data->req_port)
return -EEXIST; goto exit;
/* Set the monitor port */
val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM,
mirror->to_local_port);
ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
if (ret)
return ret;
if (ingress) {
reg = QCA8K_PORT_LOOKUP_CTRL(port);
val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
} else {
reg = QCA8K_REG_PORT_HOL_CTRL1(port);
val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
}
ret = regmap_update_bits(priv->regmap, reg, val, val);
if (ret)
return ret;
/* Track mirror port for tx and rx to decide when the data = mib_eth_data->data;
* mirror port has to be disabled.
*/
if (ingress)
priv->mirror_rx |= BIT(port);
else
priv->mirror_tx |= BIT(port);
return 0; for (i = 0; i < priv->info->mib_count; i++) {
} mib = &ar8327_mib[i];
static void /* First 3 mib are present in the skb head */
qca8k_port_mirror_del(struct dsa_switch *ds, int port, if (i < 3) {
struct dsa_mall_mirror_tc_entry *mirror) data[i] = mib_ethhdr->data[i];
{ continue;
struct qca8k_priv *priv = ds->priv; }
u32 reg, val;
int ret;
if (mirror->ingress) { mib_len = sizeof(uint32_t);
reg = QCA8K_PORT_LOOKUP_CTRL(port);
val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
} else {
reg = QCA8K_REG_PORT_HOL_CTRL1(port);
val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
}
ret = regmap_clear_bits(priv->regmap, reg, val); /* Some mib are 64 bit wide */
if (ret) if (mib->size == 2)
goto err; mib_len = sizeof(uint64_t);
if (mirror->ingress) /* Copy the mib value from packet to the */
priv->mirror_rx &= ~BIT(port); memcpy(data + i, skb->data + offset, mib_len);
else
priv->mirror_tx &= ~BIT(port);
/* No port set to send packet to mirror port. Disable mirror port */ /* Set the offset for the next mib */
if (!priv->mirror_rx && !priv->mirror_tx) { offset += mib_len;
val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, 0xF);
ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
if (ret)
goto err;
} }
err:
dev_err(priv->dev, "Failed to del mirror port from %d", port); exit:
/* Complete on receiving all the mib packet */
if (refcount_dec_and_test(&mib_eth_data->port_parsed))
complete(&mib_eth_data->rw_done);
} }
static int static int
qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
struct netlink_ext_ack *extack)
{ {
struct dsa_port *dp = dsa_to_port(ds, port);
struct qca8k_mib_eth_data *mib_eth_data;
struct qca8k_priv *priv = ds->priv; struct qca8k_priv *priv = ds->priv;
int ret; int ret;
if (vlan_filtering) { mib_eth_data = &priv->mib_eth_data;
ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
QCA8K_PORT_LOOKUP_VLAN_MODE_SECURE);
} else {
ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
QCA8K_PORT_LOOKUP_VLAN_MODE_NONE);
}
return ret;
}
static int mutex_lock(&mib_eth_data->mutex);
qca8k_port_vlan_add(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan,
struct netlink_ext_ack *extack)
{
bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
struct qca8k_priv *priv = ds->priv;
int ret;
ret = qca8k_vlan_add(priv, port, vlan->vid, untagged); reinit_completion(&mib_eth_data->rw_done);
if (ret) {
dev_err(priv->dev, "Failed to add VLAN to port %d (%d)", port, ret);
return ret;
}
if (pvid) { mib_eth_data->req_port = dp->index;
ret = qca8k_rmw(priv, QCA8K_EGRESS_VLAN(port), mib_eth_data->data = data;
QCA8K_EGREES_VLAN_PORT_MASK(port), refcount_set(&mib_eth_data->port_parsed, QCA8K_NUM_PORTS);
QCA8K_EGREES_VLAN_PORT(port, vlan->vid));
if (ret)
return ret;
ret = qca8k_write(priv, QCA8K_REG_PORT_VLAN_CTRL0(port), mutex_lock(&priv->reg_mutex);
QCA8K_PORT_VLAN_CVID(vlan->vid) |
QCA8K_PORT_VLAN_SVID(vlan->vid));
}
return ret; /* Send mib autocast request */
} ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_CAST) |
QCA8K_MIB_BUSY);
static int mutex_unlock(&priv->reg_mutex);
qca8k_port_vlan_del(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan)
{
struct qca8k_priv *priv = ds->priv;
int ret;
ret = qca8k_vlan_del(priv, port, vlan->vid);
if (ret) if (ret)
dev_err(priv->dev, "Failed to delete VLAN from port %d (%d)", port, ret); goto exit;
ret = wait_for_completion_timeout(&mib_eth_data->rw_done, QCA8K_ETHERNET_TIMEOUT);
exit:
mutex_unlock(&mib_eth_data->mutex);
return ret; return ret;
} }
...@@ -2640,174 +1593,6 @@ qca8k_get_tag_protocol(struct dsa_switch *ds, int port, ...@@ -2640,174 +1593,6 @@ qca8k_get_tag_protocol(struct dsa_switch *ds, int port,
return DSA_TAG_PROTO_QCA; return DSA_TAG_PROTO_QCA;
} }
static bool
qca8k_lag_can_offload(struct dsa_switch *ds, struct dsa_lag lag,
struct netdev_lag_upper_info *info)
{
struct dsa_port *dp;
int members = 0;
if (!lag.id)
return false;
dsa_lag_foreach_port(dp, ds->dst, &lag)
/* Includes the port joining the LAG */
members++;
if (members > QCA8K_NUM_PORTS_FOR_LAG)
return false;
if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
return false;
if (info->hash_type != NETDEV_LAG_HASH_L2 &&
info->hash_type != NETDEV_LAG_HASH_L23)
return false;
return true;
}
static int
qca8k_lag_setup_hash(struct dsa_switch *ds, struct dsa_lag lag,
struct netdev_lag_upper_info *info)
{
struct net_device *lag_dev = lag.dev;
struct qca8k_priv *priv = ds->priv;
bool unique_lag = true;
unsigned int i;
u32 hash = 0;
switch (info->hash_type) {
case NETDEV_LAG_HASH_L23:
hash |= QCA8K_TRUNK_HASH_SIP_EN;
hash |= QCA8K_TRUNK_HASH_DIP_EN;
fallthrough;
case NETDEV_LAG_HASH_L2:
hash |= QCA8K_TRUNK_HASH_SA_EN;
hash |= QCA8K_TRUNK_HASH_DA_EN;
break;
default: /* We should NEVER reach this */
return -EOPNOTSUPP;
}
/* Check if we are the unique configured LAG */
dsa_lags_foreach_id(i, ds->dst)
if (i != lag.id && dsa_lag_by_id(ds->dst, i)) {
unique_lag = false;
break;
}
/* Hash Mode is global. Make sure the same Hash Mode
* is set to all the 4 possible lag.
* If we are the unique LAG we can set whatever hash
* mode we want.
* To change hash mode it's needed to remove all LAG
* and change the mode with the latest.
*/
if (unique_lag) {
priv->lag_hash_mode = hash;
} else if (priv->lag_hash_mode != hash) {
netdev_err(lag_dev, "Error: Mismatched Hash Mode across different lag is not supported\n");
return -EOPNOTSUPP;
}
return regmap_update_bits(priv->regmap, QCA8K_TRUNK_HASH_EN_CTRL,
QCA8K_TRUNK_HASH_MASK, hash);
}
static int
qca8k_lag_refresh_portmap(struct dsa_switch *ds, int port,
struct dsa_lag lag, bool delete)
{
struct qca8k_priv *priv = ds->priv;
int ret, id, i;
u32 val;
/* DSA LAG IDs are one-based, hardware is zero-based */
id = lag.id - 1;
/* Read current port member */
ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0, &val);
if (ret)
return ret;
/* Shift val to the correct trunk */
val >>= QCA8K_REG_GOL_TRUNK_SHIFT(id);
val &= QCA8K_REG_GOL_TRUNK_MEMBER_MASK;
if (delete)
val &= ~BIT(port);
else
val |= BIT(port);
/* Update port member. With empty portmap disable trunk */
ret = regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0,
QCA8K_REG_GOL_TRUNK_MEMBER(id) |
QCA8K_REG_GOL_TRUNK_EN(id),
!val << QCA8K_REG_GOL_TRUNK_SHIFT(id) |
val << QCA8K_REG_GOL_TRUNK_SHIFT(id));
/* Search empty member if adding or port on deleting */
for (i = 0; i < QCA8K_NUM_PORTS_FOR_LAG; i++) {
ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id), &val);
if (ret)
return ret;
val >>= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i);
val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_MASK;
if (delete) {
/* If port flagged to be disabled assume this member is
* empty
*/
if (val != QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
continue;
val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK;
if (val != port)
continue;
} else {
/* If port flagged to be enabled assume this member is
* already set
*/
if (val == QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
continue;
}
/* We have found the member to add/remove */
break;
}
/* Set port in the correct port mask or disable port if in delete mode */
return regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id),
QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN(id, i) |
QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT(id, i),
!delete << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i) |
port << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i));
}
static int
qca8k_port_lag_join(struct dsa_switch *ds, int port, struct dsa_lag lag,
struct netdev_lag_upper_info *info)
{
int ret;
if (!qca8k_lag_can_offload(ds, lag, info))
return -EOPNOTSUPP;
ret = qca8k_lag_setup_hash(ds, lag, info);
if (ret)
return ret;
return qca8k_lag_refresh_portmap(ds, port, lag, false);
}
static int
qca8k_port_lag_leave(struct dsa_switch *ds, int port,
struct dsa_lag lag)
{
return qca8k_lag_refresh_portmap(ds, port, lag, true);
}
static void static void
qca8k_master_change(struct dsa_switch *ds, const struct net_device *master, qca8k_master_change(struct dsa_switch *ds, const struct net_device *master,
bool operational) bool operational)
...@@ -3091,36 +1876,6 @@ static const struct dsa_switch_ops qca8k_switch_ops = { ...@@ -3091,36 +1876,6 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
.connect_tag_protocol = qca8k_connect_tag_protocol, .connect_tag_protocol = qca8k_connect_tag_protocol,
}; };
static int qca8k_read_switch_id(struct qca8k_priv *priv)
{
const struct qca8k_match_data *data;
u32 val;
u8 id;
int ret;
/* get the switches ID from the compatible */
data = of_device_get_match_data(priv->dev);
if (!data)
return -ENODEV;
ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val);
if (ret < 0)
return -ENODEV;
id = QCA8K_MASK_CTRL_DEVICE_ID(val);
if (id != data->id) {
dev_err(priv->dev, "Switch id detected %x but expected %x", id, data->id);
return -ENODEV;
}
priv->switch_id = id;
/* Save revision to communicate to the internal PHY driver */
priv->switch_revision = QCA8K_MASK_CTRL_REV_ID(val);
return 0;
}
static int static int
qca8k_sw_probe(struct mdio_device *mdiodev) qca8k_sw_probe(struct mdio_device *mdiodev)
{ {
...@@ -3134,6 +1889,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev) ...@@ -3134,6 +1889,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
if (!priv) if (!priv)
return -ENOMEM; return -ENOMEM;
priv->info = of_device_get_match_data(priv->dev);
priv->bus = mdiodev->bus; priv->bus = mdiodev->bus;
priv->dev = &mdiodev->dev; priv->dev = &mdiodev->dev;
...@@ -3256,20 +2012,29 @@ static int qca8k_resume(struct device *dev) ...@@ -3256,20 +2012,29 @@ static int qca8k_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(qca8k_pm_ops, static SIMPLE_DEV_PM_OPS(qca8k_pm_ops,
qca8k_suspend, qca8k_resume); qca8k_suspend, qca8k_resume);
static const struct qca8k_info_ops qca8xxx_ops = {
.autocast_mib = qca8k_get_ethtool_stats_eth,
.read_eth = qca8k_read_eth,
.write_eth = qca8k_write_eth,
};
static const struct qca8k_match_data qca8327 = { static const struct qca8k_match_data qca8327 = {
.id = QCA8K_ID_QCA8327, .id = QCA8K_ID_QCA8327,
.reduced_package = true, .reduced_package = true,
.mib_count = QCA8K_QCA832X_MIB_COUNT, .mib_count = QCA8K_QCA832X_MIB_COUNT,
.ops = &qca8xxx_ops,
}; };
static const struct qca8k_match_data qca8328 = { static const struct qca8k_match_data qca8328 = {
.id = QCA8K_ID_QCA8327, .id = QCA8K_ID_QCA8327,
.mib_count = QCA8K_QCA832X_MIB_COUNT, .mib_count = QCA8K_QCA832X_MIB_COUNT,
.ops = &qca8xxx_ops,
}; };
static const struct qca8k_match_data qca833x = { static const struct qca8k_match_data qca833x = {
.id = QCA8K_ID_QCA8337, .id = QCA8K_ID_QCA8337,
.mib_count = QCA8K_QCA833X_MIB_COUNT, .mib_count = QCA8K_QCA833X_MIB_COUNT,
.ops = &qca8xxx_ops,
}; };
static const struct of_device_id qca8k_of_match[] = { static const struct of_device_id qca8k_of_match[] = {
......
drivers/net/dsa/qca/qca8k-common.c 0 → 100644
View file @ 92b54e09
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
* Copyright (c) 2015, 2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2016 John Crispin <john@phrozen.org>
*/
#include <linux/netdevice.h>
#include <net/dsa.h>
#include <linux/if_bridge.h>
#include "qca8k.h"
#define MIB_DESC(_s, _o, _n) \
{ \
.size = (_s), \
.offset = (_o), \
.name = (_n), \
}
const struct qca8k_mib_desc ar8327_mib[] = {
MIB_DESC(1, 0x00, "RxBroad"),
MIB_DESC(1, 0x04, "RxPause"),
MIB_DESC(1, 0x08, "RxMulti"),
MIB_DESC(1, 0x0c, "RxFcsErr"),
MIB_DESC(1, 0x10, "RxAlignErr"),
MIB_DESC(1, 0x14, "RxRunt"),
MIB_DESC(1, 0x18, "RxFragment"),
MIB_DESC(1, 0x1c, "Rx64Byte"),
MIB_DESC(1, 0x20, "Rx128Byte"),
MIB_DESC(1, 0x24, "Rx256Byte"),
MIB_DESC(1, 0x28, "Rx512Byte"),
MIB_DESC(1, 0x2c, "Rx1024Byte"),
MIB_DESC(1, 0x30, "Rx1518Byte"),
MIB_DESC(1, 0x34, "RxMaxByte"),
MIB_DESC(1, 0x38, "RxTooLong"),
MIB_DESC(2, 0x3c, "RxGoodByte"),
MIB_DESC(2, 0x44, "RxBadByte"),
MIB_DESC(1, 0x4c, "RxOverFlow"),
MIB_DESC(1, 0x50, "Filtered"),
MIB_DESC(1, 0x54, "TxBroad"),
MIB_DESC(1, 0x58, "TxPause"),
MIB_DESC(1, 0x5c, "TxMulti"),
MIB_DESC(1, 0x60, "TxUnderRun"),
MIB_DESC(1, 0x64, "Tx64Byte"),
MIB_DESC(1, 0x68, "Tx128Byte"),
MIB_DESC(1, 0x6c, "Tx256Byte"),
MIB_DESC(1, 0x70, "Tx512Byte"),
MIB_DESC(1, 0x74, "Tx1024Byte"),
MIB_DESC(1, 0x78, "Tx1518Byte"),
MIB_DESC(1, 0x7c, "TxMaxByte"),
MIB_DESC(1, 0x80, "TxOverSize"),
MIB_DESC(2, 0x84, "TxByte"),
MIB_DESC(1, 0x8c, "TxCollision"),
MIB_DESC(1, 0x90, "TxAbortCol"),
MIB_DESC(1, 0x94, "TxMultiCol"),
MIB_DESC(1, 0x98, "TxSingleCol"),
MIB_DESC(1, 0x9c, "TxExcDefer"),
MIB_DESC(1, 0xa0, "TxDefer"),
MIB_DESC(1, 0xa4, "TxLateCol"),
MIB_DESC(1, 0xa8, "RXUnicast"),
MIB_DESC(1, 0xac, "TXUnicast"),
};
int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val)
{
return regmap_read(priv->regmap, reg, val);
}
int qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val)
{
return regmap_write(priv->regmap, reg, val);
}
int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val)
{
return regmap_update_bits(priv->regmap, reg, mask, write_val);
}
static const struct regmap_range qca8k_readable_ranges[] = {
regmap_reg_range(0x0000, 0x00e4), /* Global control */
regmap_reg_range(0x0100, 0x0168), /* EEE control */
regmap_reg_range(0x0200, 0x0270), /* Parser control */
regmap_reg_range(0x0400, 0x0454), /* ACL */
regmap_reg_range(0x0600, 0x0718), /* Lookup */
regmap_reg_range(0x0800, 0x0b70), /* QM */
regmap_reg_range(0x0c00, 0x0c80), /* PKT */
regmap_reg_range(0x0e00, 0x0e98), /* L3 */
regmap_reg_range(0x1000, 0x10ac), /* MIB - Port0 */
regmap_reg_range(0x1100, 0x11ac), /* MIB - Port1 */
regmap_reg_range(0x1200, 0x12ac), /* MIB - Port2 */
regmap_reg_range(0x1300, 0x13ac), /* MIB - Port3 */
regmap_reg_range(0x1400, 0x14ac), /* MIB - Port4 */
regmap_reg_range(0x1500, 0x15ac), /* MIB - Port5 */
regmap_reg_range(0x1600, 0x16ac), /* MIB - Port6 */
};
const struct regmap_access_table qca8k_readable_table = {
.yes_ranges = qca8k_readable_ranges,
.n_yes_ranges = ARRAY_SIZE(qca8k_readable_ranges),
};
/* TODO: remove these extra ops when we can support regmap bulk read/write */
static int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
{
int i, count = len / sizeof(u32), ret;
if (priv->mgmt_master && priv->info->ops->read_eth &&
!priv->info->ops->read_eth(priv, reg, val, len))
return 0;
for (i = 0; i < count; i++) {
ret = regmap_read(priv->regmap, reg + (i * 4), val + i);
if (ret < 0)
return ret;
}
return 0;
}
/* TODO: remove these extra ops when we can support regmap bulk read/write */
static int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
{
int i, count = len / sizeof(u32), ret;
u32 tmp;
if (priv->mgmt_master && priv->info->ops->write_eth &&
!priv->info->ops->write_eth(priv, reg, val, len))
return 0;
for (i = 0; i < count; i++) {
tmp = val[i];
ret = regmap_write(priv->regmap, reg + (i * 4), tmp);
if (ret < 0)
return ret;
}
return 0;
}
static int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
{
u32 val;
return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
}
static int qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
{
u32 reg[3];
int ret;
/* load the ARL table into an array */
ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
if (ret)
return ret;
/* vid - 83:72 */
fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
/* aging - 67:64 */
fdb->aging = FIELD_GET(QCA8K_ATU_STATUS_MASK, reg[2]);
/* portmask - 54:48 */
fdb->port_mask = FIELD_GET(QCA8K_ATU_PORT_MASK, reg[1]);
/* mac - 47:0 */
fdb->mac[0] = FIELD_GET(QCA8K_ATU_ADDR0_MASK, reg[1]);
fdb->mac[1] = FIELD_GET(QCA8K_ATU_ADDR1_MASK, reg[1]);
fdb->mac[2] = FIELD_GET(QCA8K_ATU_ADDR2_MASK, reg[0]);
fdb->mac[3] = FIELD_GET(QCA8K_ATU_ADDR3_MASK, reg[0]);
fdb->mac[4] = FIELD_GET(QCA8K_ATU_ADDR4_MASK, reg[0]);
fdb->mac[5] = FIELD_GET(QCA8K_ATU_ADDR5_MASK, reg[0]);
return 0;
}
static void qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask,
const u8 *mac, u8 aging)
{
u32 reg[3] = { 0 };
/* vid - 83:72 */
reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
/* aging - 67:64 */
reg[2] |= FIELD_PREP(QCA8K_ATU_STATUS_MASK, aging);
/* portmask - 54:48 */
reg[1] = FIELD_PREP(QCA8K_ATU_PORT_MASK, port_mask);
/* mac - 47:0 */
reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR0_MASK, mac[0]);
reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR1_MASK, mac[1]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR2_MASK, mac[2]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR3_MASK, mac[3]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR4_MASK, mac[4]);
reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
/* load the array into the ARL table */
qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
}
static int qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd,
int port)
{
u32 reg;
int ret;
/* Set the command and FDB index */
reg = QCA8K_ATU_FUNC_BUSY;
reg |= cmd;
if (port >= 0) {
reg |= QCA8K_ATU_FUNC_PORT_EN;
reg |= FIELD_PREP(QCA8K_ATU_FUNC_PORT_MASK, port);
}
/* Write the function register triggering the table access */
ret = qca8k_write(priv, QCA8K_REG_ATU_FUNC, reg);
if (ret)
return ret;
/* wait for completion */
ret = qca8k_busy_wait(priv, QCA8K_REG_ATU_FUNC, QCA8K_ATU_FUNC_BUSY);
if (ret)
return ret;
/* Check for table full violation when adding an entry */
if (cmd == QCA8K_FDB_LOAD) {
ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, &reg);
if (ret < 0)
return ret;
if (reg & QCA8K_ATU_FUNC_FULL)
return -1;
}
return 0;
}
static int qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb,
int port)
{
int ret;
qca8k_fdb_write(priv, fdb->vid, fdb->port_mask, fdb->mac, fdb->aging);
ret = qca8k_fdb_access(priv, QCA8K_FDB_NEXT, port);
if (ret < 0)
return ret;
return qca8k_fdb_read(priv, fdb);
}
static int qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac,
u16 port_mask, u16 vid, u8 aging)
{
int ret;
mutex_lock(&priv->reg_mutex);
qca8k_fdb_write(priv, vid, port_mask, mac, aging);
ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac,
u16 port_mask, u16 vid)
{
int ret;
mutex_lock(&priv->reg_mutex);
qca8k_fdb_write(priv, vid, port_mask, mac, 0);
ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
mutex_unlock(&priv->reg_mutex);
return ret;
}
void qca8k_fdb_flush(struct qca8k_priv *priv)
{
mutex_lock(&priv->reg_mutex);
qca8k_fdb_access(priv, QCA8K_FDB_FLUSH, -1);
mutex_unlock(&priv->reg_mutex);
}
static int qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask,
const u8 *mac, u16 vid)
{
struct qca8k_fdb fdb = { 0 };
int ret;
mutex_lock(&priv->reg_mutex);
qca8k_fdb_write(priv, vid, 0, mac, 0);
ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
if (ret < 0)
goto exit;
ret = qca8k_fdb_read(priv, &fdb);
if (ret < 0)
goto exit;
/* Rule exist. Delete first */
if (!fdb.aging) {
ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
if (ret)
goto exit;
}
/* Add port to fdb portmask */
fdb.port_mask |= port_mask;
qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
exit:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
const u8 *mac, u16 vid)
{
struct qca8k_fdb fdb = { 0 };
int ret;
mutex_lock(&priv->reg_mutex);
qca8k_fdb_write(priv, vid, 0, mac, 0);
ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
if (ret < 0)
goto exit;
/* Rule doesn't exist. Why delete? */
if (!fdb.aging) {
ret = -EINVAL;
goto exit;
}
ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
if (ret)
goto exit;
/* Only port in the rule is this port. Don't re insert */
if (fdb.port_mask == port_mask)
goto exit;
/* Remove port from port mask */
fdb.port_mask &= ~port_mask;
qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
exit:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int qca8k_vlan_access(struct qca8k_priv *priv,
enum qca8k_vlan_cmd cmd, u16 vid)
{
u32 reg;
int ret;
/* Set the command and VLAN index */
reg = QCA8K_VTU_FUNC1_BUSY;
reg |= cmd;
reg |= FIELD_PREP(QCA8K_VTU_FUNC1_VID_MASK, vid);
/* Write the function register triggering the table access */
ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg);
if (ret)
return ret;
/* wait for completion */
ret = qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY);
if (ret)
return ret;
/* Check for table full violation when adding an entry */
if (cmd == QCA8K_VLAN_LOAD) {
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, &reg);
if (ret < 0)
return ret;
if (reg & QCA8K_VTU_FUNC1_FULL)
return -ENOMEM;
}
return 0;
}
static int qca8k_vlan_add(struct qca8k_priv *priv, u8 port, u16 vid,
bool untagged)
{
u32 reg;
int ret;
/* We do the right thing with VLAN 0 and treat it as untagged while
* preserving the tag on egress.
*/
if (vid == 0)
return 0;
mutex_lock(&priv->reg_mutex);
ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
if (ret < 0)
goto out;
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
if (ret < 0)
goto out;
reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
if (untagged)
reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_UNTAG(port);
else
reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_TAG(port);
ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
if (ret)
goto out;
ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
out:
mutex_unlock(&priv->reg_mutex);
return ret;
}
static int qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
{
u32 reg, mask;
int ret, i;
bool del;
mutex_lock(&priv->reg_mutex);
ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
if (ret < 0)
goto out;
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
if (ret < 0)
goto out;
reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(port);
/* Check if we're the last member to be removed */
del = true;
for (i = 0; i < QCA8K_NUM_PORTS; i++) {
mask = QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(i);
if ((reg & mask) != mask) {
del = false;
break;
}
}
if (del) {
ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
} else {
ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
if (ret)
goto out;
ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
}
out:
mutex_unlock(&priv->reg_mutex);
return ret;
}
int qca8k_mib_init(struct qca8k_priv *priv)
{
int ret;
mutex_lock(&priv->reg_mutex);
ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
QCA8K_MIB_BUSY);
if (ret)
goto exit;
ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
if (ret)
goto exit;
ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
if (ret)
goto exit;
ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
exit:
mutex_unlock(&priv->reg_mutex);
return ret;
}
void qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
{
u32 mask = QCA8K_PORT_STATUS_TXMAC | QCA8K_PORT_STATUS_RXMAC;
/* Port 0 and 6 have no internal PHY */
if (port > 0 && port < 6)
mask |= QCA8K_PORT_STATUS_LINK_AUTO;
if (enable)
regmap_set_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
else
regmap_clear_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
}
void qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset,
uint8_t *data)
{
struct qca8k_priv *priv = ds->priv;
int i;
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < priv->info->mib_count; i++)
strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
ETH_GSTRING_LEN);
}
void qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
uint64_t *data)
{
struct qca8k_priv *priv = ds->priv;
const struct qca8k_mib_desc *mib;
u32 reg, i, val;
u32 hi = 0;
int ret;
if (priv->mgmt_master && priv->info->ops->autocast_mib &&
priv->info->ops->autocast_mib(ds, port, data) > 0)
return;
for (i = 0; i < priv->info->mib_count; i++) {
mib = &ar8327_mib[i];
reg = QCA8K_PORT_MIB_COUNTER(port) + mib->offset;
ret = qca8k_read(priv, reg, &val);
if (ret < 0)
continue;
if (mib->size == 2) {
ret = qca8k_read(priv, reg + 4, &hi);
if (ret < 0)
continue;
}
data[i] = val;
if (mib->size == 2)
data[i] |= (u64)hi << 32;
}
}
int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
struct qca8k_priv *priv = ds->priv;
if (sset != ETH_SS_STATS)
return 0;
return priv->info->mib_count;
}
int qca8k_set_mac_eee(struct dsa_switch *ds, int port,
struct ethtool_eee *eee)
{
u32 lpi_en = QCA8K_REG_EEE_CTRL_LPI_EN(port);
struct qca8k_priv *priv = ds->priv;
u32 reg;
int ret;
mutex_lock(&priv->reg_mutex);
ret = qca8k_read(priv, QCA8K_REG_EEE_CTRL, &reg);
if (ret < 0)
goto exit;
if (eee->eee_enabled)
reg |= lpi_en;
else
reg &= ~lpi_en;
ret = qca8k_write(priv, QCA8K_REG_EEE_CTRL, reg);
exit:
mutex_unlock(&priv->reg_mutex);
return ret;
}
int qca8k_get_mac_eee(struct dsa_switch *ds, int port,
struct ethtool_eee *e)
{
/* Nothing to do on the port's MAC */
return 0;
}
void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
{
struct qca8k_priv *priv = ds->priv;
u32 stp_state;
switch (state) {
case BR_STATE_DISABLED:
stp_state = QCA8K_PORT_LOOKUP_STATE_DISABLED;
break;
case BR_STATE_BLOCKING:
stp_state = QCA8K_PORT_LOOKUP_STATE_BLOCKING;
break;
case BR_STATE_LISTENING:
stp_state = QCA8K_PORT_LOOKUP_STATE_LISTENING;
break;
case BR_STATE_LEARNING:
stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
break;
case BR_STATE_FORWARDING:
default:
stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
break;
}
qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
}
int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
struct dsa_bridge bridge,
bool *tx_fwd_offload,
struct netlink_ext_ack *extack)
{
struct qca8k_priv *priv = ds->priv;
int port_mask, cpu_port;
int i, ret;
cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
port_mask = BIT(cpu_port);
for (i = 0; i < QCA8K_NUM_PORTS; i++) {
if (dsa_is_cpu_port(ds, i))
continue;
if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
continue;
/* Add this port to the portvlan mask of the other ports
* in the bridge
*/
ret = regmap_set_bits(priv->regmap,
QCA8K_PORT_LOOKUP_CTRL(i),
BIT(port));
if (ret)
return ret;
if (i != port)
port_mask |= BIT(i);
}
/* Add all other ports to this ports portvlan mask */
ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_MEMBER, port_mask);
return ret;
}
void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
struct dsa_bridge bridge)
{
struct qca8k_priv *priv = ds->priv;
int cpu_port, i;
cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
for (i = 0; i < QCA8K_NUM_PORTS; i++) {
if (dsa_is_cpu_port(ds, i))
continue;
if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
continue;
/* Remove this port to the portvlan mask of the other ports
* in the bridge
*/
regmap_clear_bits(priv->regmap,
QCA8K_PORT_LOOKUP_CTRL(i),
BIT(port));
}
/* Set the cpu port to be the only one in the portvlan mask of
* this port
*/
qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
}
void qca8k_port_fast_age(struct dsa_switch *ds, int port)
{
struct qca8k_priv *priv = ds->priv;
mutex_lock(&priv->reg_mutex);
qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
mutex_unlock(&priv->reg_mutex);
}
int qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
{
struct qca8k_priv *priv = ds->priv;
unsigned int secs = msecs / 1000;
u32 val;
/* AGE_TIME reg is set in 7s step */
val = secs / 7;
/* Handle case with 0 as val to NOT disable
* learning
*/
if (!val)
val = 1;
return regmap_update_bits(priv->regmap, QCA8K_REG_ATU_CTRL,
QCA8K_ATU_AGE_TIME_MASK,
QCA8K_ATU_AGE_TIME(val));
}
int qca8k_port_enable(struct dsa_switch *ds, int port,
struct phy_device *phy)
{
struct qca8k_priv *priv = ds->priv;
qca8k_port_set_status(priv, port, 1);
priv->port_enabled_map |= BIT(port);
if (dsa_is_user_port(ds, port))
phy_support_asym_pause(phy);
return 0;
}
void qca8k_port_disable(struct dsa_switch *ds, int port)
{
struct qca8k_priv *priv = ds->priv;
qca8k_port_set_status(priv, port, 0);
priv->port_enabled_map &= ~BIT(port);
}
int qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
{
struct qca8k_priv *priv = ds->priv;
int ret;
/* We have only have a general MTU setting.
* DSA always set the CPU port's MTU to the largest MTU of the slave
* ports.
* Setting MTU just for the CPU port is sufficient to correctly set a
* value for every port.
*/
if (!dsa_is_cpu_port(ds, port))
return 0;
/* To change the MAX_FRAME_SIZE the cpu ports must be off or
* the switch panics.
* Turn off both cpu ports before applying the new value to prevent
* this.
*/
if (priv->port_enabled_map & BIT(0))
qca8k_port_set_status(priv, 0, 0);
if (priv->port_enabled_map & BIT(6))
qca8k_port_set_status(priv, 6, 0);
/* Include L2 header / FCS length */
ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu +
ETH_HLEN + ETH_FCS_LEN);
if (priv->port_enabled_map & BIT(0))
qca8k_port_set_status(priv, 0, 1);
if (priv->port_enabled_map & BIT(6))
qca8k_port_set_status(priv, 6, 1);
return ret;
}
int qca8k_port_max_mtu(struct dsa_switch *ds, int port)
{
return QCA8K_MAX_MTU;
}
int qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
u16 port_mask, u16 vid)
{
/* Set the vid to the port vlan id if no vid is set */
if (!vid)
vid = QCA8K_PORT_VID_DEF;
return qca8k_fdb_add(priv, addr, port_mask, vid,
QCA8K_ATU_STATUS_STATIC);
}
int qca8k_port_fdb_add(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid,
struct dsa_db db)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
u16 port_mask = BIT(port);
return qca8k_port_fdb_insert(priv, addr, port_mask, vid);
}
int qca8k_port_fdb_del(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid,
struct dsa_db db)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
u16 port_mask = BIT(port);
if (!vid)
vid = QCA8K_PORT_VID_DEF;
return qca8k_fdb_del(priv, addr, port_mask, vid);
}
int qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
dsa_fdb_dump_cb_t *cb, void *data)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
struct qca8k_fdb _fdb = { 0 };
int cnt = QCA8K_NUM_FDB_RECORDS;
bool is_static;
int ret = 0;
mutex_lock(&priv->reg_mutex);
while (cnt-- && !qca8k_fdb_next(priv, &_fdb, port)) {
if (!_fdb.aging)
break;
is_static = (_fdb.aging == QCA8K_ATU_STATUS_STATIC);
ret = cb(_fdb.mac, _fdb.vid, is_static, data);
if (ret)
break;
}
mutex_unlock(&priv->reg_mutex);
return 0;
}
int qca8k_port_mdb_add(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_mdb *mdb,
struct dsa_db db)
{
struct qca8k_priv *priv = ds->priv;
const u8 *addr = mdb->addr;
u16 vid = mdb->vid;
return qca8k_fdb_search_and_insert(priv, BIT(port), addr, vid);
}
int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_mdb *mdb,
struct dsa_db db)
{
struct qca8k_priv *priv = ds->priv;
const u8 *addr = mdb->addr;
u16 vid = mdb->vid;
return qca8k_fdb_search_and_del(priv, BIT(port), addr, vid);
}
int qca8k_port_mirror_add(struct dsa_switch *ds, int port,
struct dsa_mall_mirror_tc_entry *mirror,
bool ingress, struct netlink_ext_ack *extack)
{
struct qca8k_priv *priv = ds->priv;
int monitor_port, ret;
u32 reg, val;
/* Check for existent entry */
if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
return -EEXIST;
ret = regmap_read(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, &val);
if (ret)
return ret;
/* QCA83xx can have only one port set to mirror mode.
* Check that the correct port is requested and return error otherwise.
* When no mirror port is set, the values is set to 0xF
*/
monitor_port = FIELD_GET(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
if (monitor_port != 0xF && monitor_port != mirror->to_local_port)
return -EEXIST;
/* Set the monitor port */
val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM,
mirror->to_local_port);
ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
if (ret)
return ret;
if (ingress) {
reg = QCA8K_PORT_LOOKUP_CTRL(port);
val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
} else {
reg = QCA8K_REG_PORT_HOL_CTRL1(port);
val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
}
ret = regmap_update_bits(priv->regmap, reg, val, val);
if (ret)
return ret;
/* Track mirror port for tx and rx to decide when the
* mirror port has to be disabled.
*/
if (ingress)
priv->mirror_rx |= BIT(port);
else
priv->mirror_tx |= BIT(port);
return 0;
}
void qca8k_port_mirror_del(struct dsa_switch *ds, int port,
struct dsa_mall_mirror_tc_entry *mirror)
{
struct qca8k_priv *priv = ds->priv;
u32 reg, val;
int ret;
if (mirror->ingress) {
reg = QCA8K_PORT_LOOKUP_CTRL(port);
val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
} else {
reg = QCA8K_REG_PORT_HOL_CTRL1(port);
val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
}
ret = regmap_clear_bits(priv->regmap, reg, val);
if (ret)
goto err;
if (mirror->ingress)
priv->mirror_rx &= ~BIT(port);
else
priv->mirror_tx &= ~BIT(port);
/* No port set to send packet to mirror port. Disable mirror port */
if (!priv->mirror_rx && !priv->mirror_tx) {
val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, 0xF);
ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
if (ret)
goto err;
}
err:
dev_err(priv->dev, "Failed to del mirror port from %d", port);
}
int qca8k_port_vlan_filtering(struct dsa_switch *ds, int port,
bool vlan_filtering,
struct netlink_ext_ack *extack)
{
struct qca8k_priv *priv = ds->priv;
int ret;
if (vlan_filtering) {
ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
QCA8K_PORT_LOOKUP_VLAN_MODE_SECURE);
} else {
ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
QCA8K_PORT_LOOKUP_VLAN_MODE_NONE);
}
return ret;
}
int qca8k_port_vlan_add(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan,
struct netlink_ext_ack *extack)
{
bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
struct qca8k_priv *priv = ds->priv;
int ret;
ret = qca8k_vlan_add(priv, port, vlan->vid, untagged);
if (ret) {
dev_err(priv->dev, "Failed to add VLAN to port %d (%d)", port, ret);
return ret;
}
if (pvid) {
ret = qca8k_rmw(priv, QCA8K_EGRESS_VLAN(port),
QCA8K_EGREES_VLAN_PORT_MASK(port),
QCA8K_EGREES_VLAN_PORT(port, vlan->vid));
if (ret)
return ret;
ret = qca8k_write(priv, QCA8K_REG_PORT_VLAN_CTRL0(port),
QCA8K_PORT_VLAN_CVID(vlan->vid) |
QCA8K_PORT_VLAN_SVID(vlan->vid));
}
return ret;
}
int qca8k_port_vlan_del(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan)
{
struct qca8k_priv *priv = ds->priv;
int ret;
ret = qca8k_vlan_del(priv, port, vlan->vid);
if (ret)
dev_err(priv->dev, "Failed to delete VLAN from port %d (%d)", port, ret);
return ret;
}
static bool qca8k_lag_can_offload(struct dsa_switch *ds,
struct dsa_lag lag,
struct netdev_lag_upper_info *info)
{
struct dsa_port *dp;
int members = 0;
if (!lag.id)
return false;
dsa_lag_foreach_port(dp, ds->dst, &lag)
/* Includes the port joining the LAG */
members++;
if (members > QCA8K_NUM_PORTS_FOR_LAG)
return false;
if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
return false;
if (info->hash_type != NETDEV_LAG_HASH_L2 &&
info->hash_type != NETDEV_LAG_HASH_L23)
return false;
return true;
}
static int qca8k_lag_setup_hash(struct dsa_switch *ds,
struct dsa_lag lag,
struct netdev_lag_upper_info *info)
{
struct net_device *lag_dev = lag.dev;
struct qca8k_priv *priv = ds->priv;
bool unique_lag = true;
unsigned int i;
u32 hash = 0;
switch (info->hash_type) {
case NETDEV_LAG_HASH_L23:
hash |= QCA8K_TRUNK_HASH_SIP_EN;
hash |= QCA8K_TRUNK_HASH_DIP_EN;
fallthrough;
case NETDEV_LAG_HASH_L2:
hash |= QCA8K_TRUNK_HASH_SA_EN;
hash |= QCA8K_TRUNK_HASH_DA_EN;
break;
default: /* We should NEVER reach this */
return -EOPNOTSUPP;
}
/* Check if we are the unique configured LAG */
dsa_lags_foreach_id(i, ds->dst)
if (i != lag.id && dsa_lag_by_id(ds->dst, i)) {
unique_lag = false;
break;
}
/* Hash Mode is global. Make sure the same Hash Mode
* is set to all the 4 possible lag.
* If we are the unique LAG we can set whatever hash
* mode we want.
* To change hash mode it's needed to remove all LAG
* and change the mode with the latest.
*/
if (unique_lag) {
priv->lag_hash_mode = hash;
} else if (priv->lag_hash_mode != hash) {
netdev_err(lag_dev, "Error: Mismatched Hash Mode across different lag is not supported\n");
return -EOPNOTSUPP;
}
return regmap_update_bits(priv->regmap, QCA8K_TRUNK_HASH_EN_CTRL,
QCA8K_TRUNK_HASH_MASK, hash);
}
static int qca8k_lag_refresh_portmap(struct dsa_switch *ds, int port,
struct dsa_lag lag, bool delete)
{
struct qca8k_priv *priv = ds->priv;
int ret, id, i;
u32 val;
/* DSA LAG IDs are one-based, hardware is zero-based */
id = lag.id - 1;
/* Read current port member */
ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0, &val);
if (ret)
return ret;
/* Shift val to the correct trunk */
val >>= QCA8K_REG_GOL_TRUNK_SHIFT(id);
val &= QCA8K_REG_GOL_TRUNK_MEMBER_MASK;
if (delete)
val &= ~BIT(port);
else
val |= BIT(port);
/* Update port member. With empty portmap disable trunk */
ret = regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0,
QCA8K_REG_GOL_TRUNK_MEMBER(id) |
QCA8K_REG_GOL_TRUNK_EN(id),
!val << QCA8K_REG_GOL_TRUNK_SHIFT(id) |
val << QCA8K_REG_GOL_TRUNK_SHIFT(id));
/* Search empty member if adding or port on deleting */
for (i = 0; i < QCA8K_NUM_PORTS_FOR_LAG; i++) {
ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id), &val);
if (ret)
return ret;
val >>= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i);
val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_MASK;
if (delete) {
/* If port flagged to be disabled assume this member is
* empty
*/
if (val != QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
continue;
val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK;
if (val != port)
continue;
} else {
/* If port flagged to be enabled assume this member is
* already set
*/
if (val == QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
continue;
}
/* We have found the member to add/remove */
break;
}
/* Set port in the correct port mask or disable port if in delete mode */
return regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id),
QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN(id, i) |
QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT(id, i),
!delete << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i) |
port << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i));
}
int qca8k_port_lag_join(struct dsa_switch *ds, int port, struct dsa_lag lag,
struct netdev_lag_upper_info *info)
{
int ret;
if (!qca8k_lag_can_offload(ds, lag, info))
return -EOPNOTSUPP;
ret = qca8k_lag_setup_hash(ds, lag, info);
if (ret)
return ret;
return qca8k_lag_refresh_portmap(ds, port, lag, false);
}
int qca8k_port_lag_leave(struct dsa_switch *ds, int port,
struct dsa_lag lag)
{
return qca8k_lag_refresh_portmap(ds, port, lag, true);
}
int qca8k_read_switch_id(struct qca8k_priv *priv)
{
u32 val;
u8 id;
int ret;
if (!priv->info)
return -ENODEV;
ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val);
if (ret < 0)
return -ENODEV;
id = QCA8K_MASK_CTRL_DEVICE_ID(val);
if (id != priv->info->id) {
dev_err(priv->dev,
"Switch id detected %x but expected %x",
id, priv->info->id);
return -ENODEV;
}
priv->switch_id = id;
/* Save revision to communicate to the internal PHY driver */
priv->switch_revision = QCA8K_MASK_CTRL_REV_ID(val);
return 0;
}
drivers/net/dsa/qca/qca8k.h
View file @ 92b54e09
...@@ -324,10 +324,20 @@ enum qca8k_mid_cmd { ...@@ -324,10 +324,20 @@ enum qca8k_mid_cmd {
QCA8K_MIB_CAST = 3, QCA8K_MIB_CAST = 3,
}; };
struct qca8k_priv;
struct qca8k_info_ops {
int (*autocast_mib)(struct dsa_switch *ds, int port, u64 *data);
/* TODO: remove these extra ops when we can support regmap bulk read/write */
int (*read_eth)(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
int (*write_eth)(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
};
struct qca8k_match_data { struct qca8k_match_data {
u8 id; u8 id;
bool reduced_package; bool reduced_package;
u8 mib_count; u8 mib_count;
const struct qca8k_info_ops *ops;
}; };
enum { enum {
...@@ -401,6 +411,7 @@ struct qca8k_priv { ...@@ -401,6 +411,7 @@ struct qca8k_priv {
struct qca8k_mdio_cache mdio_cache; struct qca8k_mdio_cache mdio_cache;
struct qca8k_pcs pcs_port_0; struct qca8k_pcs pcs_port_0;
struct qca8k_pcs pcs_port_6; struct qca8k_pcs pcs_port_6;
const struct qca8k_match_data *info;
}; };
struct qca8k_mib_desc { struct qca8k_mib_desc {
...@@ -416,4 +427,93 @@ struct qca8k_fdb { ...@@ -416,4 +427,93 @@ struct qca8k_fdb {
u8 mac[6]; u8 mac[6];
}; };
/* Common setup function */
extern const struct qca8k_mib_desc ar8327_mib[];
extern const struct regmap_access_table qca8k_readable_table;
int qca8k_mib_init(struct qca8k_priv *priv);
void qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable);
int qca8k_read_switch_id(struct qca8k_priv *priv);
/* Common read/write/rmw function */
int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
int qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val);
int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val);
/* Common ops function */
void qca8k_fdb_flush(struct qca8k_priv *priv);
/* Common ethtool stats function */
void qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data);
void qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
uint64_t *data);
int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset);
/* Common eee function */
int qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee);
int qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
/* Common bridge function */
void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state);
int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
struct dsa_bridge bridge,
bool *tx_fwd_offload,
struct netlink_ext_ack *extack);
void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
struct dsa_bridge bridge);
/* Common port enable/disable function */
int qca8k_port_enable(struct dsa_switch *ds, int port,
struct phy_device *phy);
void qca8k_port_disable(struct dsa_switch *ds, int port);
/* Common MTU function */
int qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu);
int qca8k_port_max_mtu(struct dsa_switch *ds, int port);
/* Common fast age function */
void qca8k_port_fast_age(struct dsa_switch *ds, int port);
int qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs);
/* Common FDB function */
int qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
u16 port_mask, u16 vid);
int qca8k_port_fdb_add(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid,
struct dsa_db db);
int qca8k_port_fdb_del(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid,
struct dsa_db db);
int qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
dsa_fdb_dump_cb_t *cb, void *data);
/* Common MDB function */
int qca8k_port_mdb_add(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_mdb *mdb,
struct dsa_db db);
int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_mdb *mdb,
struct dsa_db db);
/* Common port mirror function */
int qca8k_port_mirror_add(struct dsa_switch *ds, int port,
struct dsa_mall_mirror_tc_entry *mirror,
bool ingress, struct netlink_ext_ack *extack);
void qca8k_port_mirror_del(struct dsa_switch *ds, int port,
struct dsa_mall_mirror_tc_entry *mirror);
/* Common port VLAN function */
int qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
struct netlink_ext_ack *extack);
int qca8k_port_vlan_add(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan,
struct netlink_ext_ack *extack);
int qca8k_port_vlan_del(struct dsa_switch *ds, int port,
const struct switchdev_obj_port_vlan *vlan);
/* Common port LAG function */
int qca8k_port_lag_join(struct dsa_switch *ds, int port, struct dsa_lag lag,
struct netdev_lag_upper_info *info);
int qca8k_port_lag_leave(struct dsa_switch *ds, int port,
struct dsa_lag lag);
#endif /* __QCA8K_H */ #endif /* __QCA8K_H */
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