[Patch net-next 1/7] net: dsa: microchip: move ksz8->regs to ksz_common

From: Arun Ramadoss
Date: Tue Jun 28 2022 - 13:14:20 EST

This patch moves the ksz8->regs from ksz8795.c to the ksz_common.c. And
the regs is dereferrenced using dev->info->regs.

Signed-off-by: Arun Ramadoss <arun.ramadoss@xxxxxxxxxxxxx>
---
drivers/net/dsa/microchip/ksz8.h | 18 ------
drivers/net/dsa/microchip/ksz8795.c | 76 ++++++++-----------------
drivers/net/dsa/microchip/ksz9477_reg.h | 3 -
drivers/net/dsa/microchip/ksz_common.c | 37 ++++++++++++
drivers/net/dsa/microchip/ksz_common.h | 18 ++++++
5 files changed, 79 insertions(+), 73 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8.h b/drivers/net/dsa/microchip/ksz8.h
index de246989c81b..465b91496ea0 100644
--- a/drivers/net/dsa/microchip/ksz8.h
+++ b/drivers/net/dsa/microchip/ksz8.h
@@ -12,23 +12,6 @@
#include <net/dsa.h>
#include "ksz_common.h"

-enum ksz_regs {
- REG_IND_CTRL_0,
- REG_IND_DATA_8,
- REG_IND_DATA_CHECK,
- REG_IND_DATA_HI,
- REG_IND_DATA_LO,
- REG_IND_MIB_CHECK,
- REG_IND_BYTE,
- P_FORCE_CTRL,
- P_LINK_STATUS,
- P_LOCAL_CTRL,
- P_NEG_RESTART_CTRL,
- P_REMOTE_STATUS,
- P_SPEED_STATUS,
- S_TAIL_TAG_CTRL,
-};
-
enum ksz_masks {
PORT_802_1P_REMAPPING,
SW_TAIL_TAG_ENABLE,
@@ -64,7 +47,6 @@ enum ksz_shifts {
};

struct ksz8 {
- const u8 *regs;
const u32 *masks;
const u8 *shifts;
void *priv;
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index df7d782e3fcd..deac3a40381e 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -26,23 +26,6 @@
#include "ksz8795_reg.h"
#include "ksz8.h"

-static const u8 ksz8795_regs[] = {
- [REG_IND_CTRL_0] = 0x6E,
- [REG_IND_DATA_8] = 0x70,
- [REG_IND_DATA_CHECK] = 0x72,
- [REG_IND_DATA_HI] = 0x71,
- [REG_IND_DATA_LO] = 0x75,
- [REG_IND_MIB_CHECK] = 0x74,
- [REG_IND_BYTE] = 0xA0,
- [P_FORCE_CTRL] = 0x0C,
- [P_LINK_STATUS] = 0x0E,
- [P_LOCAL_CTRL] = 0x07,
- [P_NEG_RESTART_CTRL] = 0x0D,
- [P_REMOTE_STATUS] = 0x08,
- [P_SPEED_STATUS] = 0x09,
- [S_TAIL_TAG_CTRL] = 0x0C,
-};
-
static const u32 ksz8795_masks[] = {
[PORT_802_1P_REMAPPING] = BIT(7),
[SW_TAIL_TAG_ENABLE] = BIT(1),
@@ -77,22 +60,6 @@ static const u8 ksz8795_shifts[] = {
[DYNAMIC_MAC_SRC_PORT] = 24,
};

-static const u8 ksz8863_regs[] = {
- [REG_IND_CTRL_0] = 0x79,
- [REG_IND_DATA_8] = 0x7B,
- [REG_IND_DATA_CHECK] = 0x7B,
- [REG_IND_DATA_HI] = 0x7C,
- [REG_IND_DATA_LO] = 0x80,
- [REG_IND_MIB_CHECK] = 0x80,
- [P_FORCE_CTRL] = 0x0C,
- [P_LINK_STATUS] = 0x0E,
- [P_LOCAL_CTRL] = 0x0C,
- [P_NEG_RESTART_CTRL] = 0x0D,
- [P_REMOTE_STATUS] = 0x0E,
- [P_SPEED_STATUS] = 0x0F,
- [S_TAIL_TAG_CTRL] = 0x03,
-};
-
static const u32 ksz8863_masks[] = {
[PORT_802_1P_REMAPPING] = BIT(3),
[SW_TAIL_TAG_ENABLE] = BIT(6),
@@ -145,11 +112,12 @@ static void ksz_port_cfg(struct ksz_device *dev, int port, int offset, u8 bits,

static int ksz8_ind_write8(struct ksz_device *dev, u8 table, u16 addr, u8 data)
{
- struct ksz8 *ksz8 = dev->priv;
- const u8 *regs = ksz8->regs;
+ const u8 *regs;
u16 ctrl_addr;
int ret = 0;

+ regs = dev->info->regs;
+
mutex_lock(&dev->alu_mutex);

ctrl_addr = IND_ACC_TABLE(table) | addr;
@@ -224,7 +192,7 @@ void ksz8_r_mib_cnt(struct ksz_device *dev, int port, u16 addr, u64 *cnt)
int loop;

masks = ksz8->masks;
- regs = ksz8->regs;
+ regs = dev->info->regs;

ctrl_addr = addr + dev->info->reg_mib_cnt * port;
ctrl_addr |= IND_ACC_TABLE(TABLE_MIB | TABLE_READ);
@@ -261,7 +229,7 @@ static void ksz8795_r_mib_pkt(struct ksz_device *dev, int port, u16 addr,
int loop;

masks = ksz8->masks;
- regs = ksz8->regs;
+ regs = dev->info->regs;

addr -= dev->info->reg_mib_cnt;
ctrl_addr = (KSZ8795_MIB_TOTAL_RX_1 - KSZ8795_MIB_TOTAL_RX_0) * port;
@@ -305,13 +273,14 @@ static void ksz8795_r_mib_pkt(struct ksz_device *dev, int port, u16 addr,
static void ksz8863_r_mib_pkt(struct ksz_device *dev, int port, u16 addr,
u64 *dropped, u64 *cnt)
{
- struct ksz8 *ksz8 = dev->priv;
- const u8 *regs = ksz8->regs;
u32 *last = (u32 *)dropped;
+ const u8 *regs;
u16 ctrl_addr;
u32 data;
u32 cur;

+ regs = dev->info->regs;
+
addr -= dev->info->reg_mib_cnt;
ctrl_addr = addr ? KSZ8863_MIB_PACKET_DROPPED_TX_0 :
KSZ8863_MIB_PACKET_DROPPED_RX_0;
@@ -392,10 +361,11 @@ void ksz8_port_init_cnt(struct ksz_device *dev, int port)

static void ksz8_r_table(struct ksz_device *dev, int table, u16 addr, u64 *data)
{
- struct ksz8 *ksz8 = dev->priv;
- const u8 *regs = ksz8->regs;
+ const u8 *regs;
u16 ctrl_addr;

+ regs = dev->info->regs;
+
ctrl_addr = IND_ACC_TABLE(table | TABLE_READ) | addr;

mutex_lock(&dev->alu_mutex);
@@ -406,10 +376,11 @@ static void ksz8_r_table(struct ksz_device *dev, int table, u16 addr, u64 *data)

static void ksz8_w_table(struct ksz_device *dev, int table, u16 addr, u64 data)
{
- struct ksz8 *ksz8 = dev->priv;
- const u8 *regs = ksz8->regs;
+ const u8 *regs;
u16 ctrl_addr;

+ regs = dev->info->regs;
+
ctrl_addr = IND_ACC_TABLE(table) | addr;

mutex_lock(&dev->alu_mutex);
@@ -426,7 +397,7 @@ static int ksz8_valid_dyn_entry(struct ksz_device *dev, u8 *data)
const u8 *regs;

masks = ksz8->masks;
- regs = ksz8->regs;
+ regs = dev->info->regs;

do {
ksz_read8(dev, regs[REG_IND_DATA_CHECK], data);
@@ -461,7 +432,7 @@ int ksz8_r_dyn_mac_table(struct ksz_device *dev, u16 addr, u8 *mac_addr,

shifts = ksz8->shifts;
masks = ksz8->masks;
- regs = ksz8->regs;
+ regs = dev->info->regs;

ctrl_addr = IND_ACC_TABLE(TABLE_DYNAMIC_MAC | TABLE_READ) | addr;

@@ -664,14 +635,15 @@ static void ksz8_w_vlan_table(struct ksz_device *dev, u16 vid, u16 vlan)

void ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)
{
- struct ksz8 *ksz8 = dev->priv;
u8 restart, speed, ctrl, link;
- const u8 *regs = ksz8->regs;
int processed = true;
+ const u8 *regs;
u8 val1, val2;
u16 data = 0;
u8 p = phy;

+ regs = dev->info->regs;
+
switch (reg) {
case MII_BMCR:
ksz_pread8(dev, p, regs[P_NEG_RESTART_CTRL], &restart);
@@ -787,11 +759,12 @@ void ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val)

void ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
{
- struct ksz8 *ksz8 = dev->priv;
u8 restart, speed, ctrl, data;
- const u8 *regs = ksz8->regs;
+ const u8 *regs;
u8 p = phy;

+ regs = dev->info->regs;
+
switch (reg) {
case MII_BMCR:

@@ -1302,13 +1275,14 @@ void ksz8_config_cpu_port(struct dsa_switch *ds)
{
struct ksz_device *dev = ds->priv;
struct ksz8 *ksz8 = dev->priv;
- const u8 *regs = ksz8->regs;
struct ksz_port *p;
const u32 *masks;
+ const u8 *regs;
u8 remote;
int i;

masks = ksz8->masks;
+ regs = dev->info->regs;

/* Switch marks the maximum frame with extra byte as oversize. */
ksz_cfg(dev, REG_SW_CTRL_2, SW_LEGAL_PACKET_DISABLE, true);
@@ -1448,11 +1422,9 @@ int ksz8_switch_init(struct ksz_device *dev)
dev->port_mask = (BIT(dev->phy_port_cnt) - 1) | dev->info->cpu_ports;

if (ksz_is_ksz88x3(dev)) {
- ksz8->regs = ksz8863_regs;
ksz8->masks = ksz8863_masks;
ksz8->shifts = ksz8863_shifts;
} else {
- ksz8->regs = ksz8795_regs;
ksz8->masks = ksz8795_masks;
ksz8->shifts = ksz8795_shifts;
}
diff --git a/drivers/net/dsa/microchip/ksz9477_reg.h b/drivers/net/dsa/microchip/ksz9477_reg.h
index c0ad83753b13..2cbbfda22c67 100644
--- a/drivers/net/dsa/microchip/ksz9477_reg.h
+++ b/drivers/net/dsa/microchip/ksz9477_reg.h
@@ -1624,9 +1624,6 @@
#define P_MIRROR_CTRL REG_PORT_MRI_MIRROR_CTRL
#define P_STP_CTRL REG_PORT_LUE_MSTP_STATE
#define P_PHY_CTRL REG_PORT_PHY_CTRL
-#define P_NEG_RESTART_CTRL REG_PORT_PHY_CTRL
-#define P_LINK_STATUS REG_PORT_PHY_STATUS
-#define P_SPEED_STATUS REG_PORT_PHY_PHY_CTRL
#define P_RATE_LIMIT_CTRL REG_PORT_MAC_IN_RATE_LIMIT

#define S_LINK_AGING_CTRL REG_SW_LUE_CTRL_1
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 59582eb3bcaf..acaa0e96f5ff 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -201,6 +201,39 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
.exit = ksz9477_switch_exit,
};

+static const u8 ksz8795_regs[] = {
+ [REG_IND_CTRL_0] = 0x6E,
+ [REG_IND_DATA_8] = 0x70,
+ [REG_IND_DATA_CHECK] = 0x72,
+ [REG_IND_DATA_HI] = 0x71,
+ [REG_IND_DATA_LO] = 0x75,
+ [REG_IND_MIB_CHECK] = 0x74,
+ [REG_IND_BYTE] = 0xA0,
+ [P_FORCE_CTRL] = 0x0C,
+ [P_LINK_STATUS] = 0x0E,
+ [P_LOCAL_CTRL] = 0x07,
+ [P_NEG_RESTART_CTRL] = 0x0D,
+ [P_REMOTE_STATUS] = 0x08,
+ [P_SPEED_STATUS] = 0x09,
+ [S_TAIL_TAG_CTRL] = 0x0C,
+};
+
+static const u8 ksz8863_regs[] = {
+ [REG_IND_CTRL_0] = 0x79,
+ [REG_IND_DATA_8] = 0x7B,
+ [REG_IND_DATA_CHECK] = 0x7B,
+ [REG_IND_DATA_HI] = 0x7C,
+ [REG_IND_DATA_LO] = 0x80,
+ [REG_IND_MIB_CHECK] = 0x80,
+ [P_FORCE_CTRL] = 0x0C,
+ [P_LINK_STATUS] = 0x0E,
+ [P_LOCAL_CTRL] = 0x0C,
+ [P_NEG_RESTART_CTRL] = 0x0D,
+ [P_REMOTE_STATUS] = 0x0E,
+ [P_SPEED_STATUS] = 0x0F,
+ [S_TAIL_TAG_CTRL] = 0x03,
+};
+
const struct ksz_chip_data ksz_switch_chips[] = {
[KSZ8795] = {
.chip_id = KSZ8795_CHIP_ID,
@@ -215,6 +248,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.mib_names = ksz9477_mib_names,
.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
.reg_mib_cnt = MIB_COUNTER_NUM,
+ .regs = ksz8795_regs,
.stp_ctrl_reg = 0x02,
.broadcast_ctrl_reg = 0x06,
.multicast_ctrl_reg = 0x04,
@@ -252,6 +286,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.mib_names = ksz9477_mib_names,
.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
.reg_mib_cnt = MIB_COUNTER_NUM,
+ .regs = ksz8795_regs,
.stp_ctrl_reg = 0x02,
.broadcast_ctrl_reg = 0x06,
.multicast_ctrl_reg = 0x04,
@@ -275,6 +310,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.mib_names = ksz9477_mib_names,
.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
.reg_mib_cnt = MIB_COUNTER_NUM,
+ .regs = ksz8795_regs,
.stp_ctrl_reg = 0x02,
.broadcast_ctrl_reg = 0x06,
.multicast_ctrl_reg = 0x04,
@@ -297,6 +333,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.mib_names = ksz88xx_mib_names,
.mib_cnt = ARRAY_SIZE(ksz88xx_mib_names),
.reg_mib_cnt = MIB_COUNTER_NUM,
+ .regs = ksz8863_regs,
.stp_ctrl_reg = 0x02,
.broadcast_ctrl_reg = 0x06,
.multicast_ctrl_reg = 0x04,
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 0e7f15efbb79..d3cd29ef7885 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -47,6 +47,7 @@ struct ksz_chip_data {
const struct ksz_mib_names *mib_names;
int mib_cnt;
u8 reg_mib_cnt;
+ const u8 *regs;
int stp_ctrl_reg;
int broadcast_ctrl_reg;
int multicast_ctrl_reg;
@@ -146,6 +147,23 @@ enum ksz_chip_id {
LAN9374_CHIP_ID = 0x00937400,
};

+enum ksz_regs {
+ REG_IND_CTRL_0,
+ REG_IND_DATA_8,
+ REG_IND_DATA_CHECK,
+ REG_IND_DATA_HI,
+ REG_IND_DATA_LO,
+ REG_IND_MIB_CHECK,
+ REG_IND_BYTE,
+ P_FORCE_CTRL,
+ P_LINK_STATUS,
+ P_LOCAL_CTRL,
+ P_NEG_RESTART_CTRL,
+ P_REMOTE_STATUS,
+ P_SPEED_STATUS,
+ S_TAIL_TAG_CTRL,
+};
+
struct alu_struct {
/* entry 1 */
u8 is_static:1;
--
2.36.1