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Subject[PATCH net-next 6/8] net: dsa: mv88e6xxx: prefix Global Monitor Control macros
Date
Prefix and document the Global Monitor Control Register macros
(which became the Global Monitor & MGMT Control Register with 88E6390)
and give a clear 16-bit registers representation.

Use __bf_shf to get the shift value at compile time instead of adding
new defined macros for it.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
drivers/net/dsa/mv88e6xxx/global1.c | 65 ++++++++++++++++++++++---------------
drivers/net/dsa/mv88e6xxx/global1.h | 38 ++++++++++++----------
2 files changed, 60 insertions(+), 43 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/global1.c b/drivers/net/dsa/mv88e6xxx/global1.c
index 63e3ad1ba52a..ee77840d5271 100644
--- a/drivers/net/dsa/mv88e6xxx/global1.c
+++ b/drivers/net/dsa/mv88e6xxx/global1.c
@@ -12,6 +12,8 @@
* (at your option) any later version.
*/

+#include <linux/bitfield.h>
+
#include "chip.h"
#include "global1.h"

@@ -247,17 +249,17 @@ int mv88e6095_g1_set_egress_port(struct mv88e6xxx_chip *chip, int port)
u16 reg;
int err;

- err = mv88e6xxx_g1_read(chip, GLOBAL_MONITOR_CONTROL, &reg);
+ err = mv88e6xxx_g1_read(chip, MV88E6185_G1_MONITOR_CTL, &reg);
if (err)
return err;

- reg &= ~(GLOBAL_MONITOR_CONTROL_INGRESS_MASK |
- GLOBAL_MONITOR_CONTROL_EGRESS_MASK);
+ reg &= ~(MV88E6185_G1_MONITOR_CTL_INGRESS_DEST_MASK |
+ MV88E6185_G1_MONITOR_CTL_EGRESS_DEST_MASK);

- reg |= port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
- port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT;
+ reg |= port << __bf_shf(MV88E6185_G1_MONITOR_CTL_INGRESS_DEST_MASK) |
+ port << __bf_shf(MV88E6185_G1_MONITOR_CTL_EGRESS_DEST_MASK);

- return mv88e6xxx_g1_write(chip, GLOBAL_MONITOR_CONTROL, reg);
+ return mv88e6xxx_g1_write(chip, MV88E6185_G1_MONITOR_CTL, reg);
}

/* Older generations also call this the ARP destination. It has been
@@ -269,14 +271,14 @@ int mv88e6095_g1_set_cpu_port(struct mv88e6xxx_chip *chip, int port)
u16 reg;
int err;

- err = mv88e6xxx_g1_read(chip, GLOBAL_MONITOR_CONTROL, &reg);
+ err = mv88e6xxx_g1_read(chip, MV88E6185_G1_MONITOR_CTL, &reg);
if (err)
return err;

- reg &= ~GLOBAL_MONITOR_CONTROL_ARP_MASK;
- reg |= port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
+ reg &= ~MV88E6185_G1_MONITOR_CTL_ARP_DEST_MASK;
+ reg |= port << __bf_shf(MV88E6185_G1_MONITOR_CTL_ARP_DEST_MASK);

- return mv88e6xxx_g1_write(chip, GLOBAL_MONITOR_CONTROL, reg);
+ return mv88e6xxx_g1_write(chip, MV88E6185_G1_MONITOR_CTL, reg);
}

static int mv88e6390_g1_monitor_write(struct mv88e6xxx_chip *chip,
@@ -284,55 +286,66 @@ static int mv88e6390_g1_monitor_write(struct mv88e6xxx_chip *chip,
{
u16 reg;

- reg = GLOBAL_MONITOR_CONTROL_UPDATE | pointer | data;
+ reg = MV88E6390_G1_MONITOR_MGMT_CTL_UPDATE | pointer | data;

- return mv88e6xxx_g1_write(chip, GLOBAL_MONITOR_CONTROL, reg);
+ return mv88e6xxx_g1_write(chip, MV88E6390_G1_MONITOR_MGMT_CTL, reg);
}

int mv88e6390_g1_set_egress_port(struct mv88e6xxx_chip *chip, int port)
{
+ u16 ptr;
int err;

- err = mv88e6390_g1_monitor_write(chip, GLOBAL_MONITOR_CONTROL_INGRESS,
- port);
+ ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_INGRESS_DEST;
+ err = mv88e6390_g1_monitor_write(chip, ptr, port);
if (err)
return err;

- return mv88e6390_g1_monitor_write(chip, GLOBAL_MONITOR_CONTROL_EGRESS,
- port);
+ ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_EGRESS_DEST;
+ err = mv88e6390_g1_monitor_write(chip, ptr, port);
+ if (err)
+ return err;
+
+ return 0;
}

int mv88e6390_g1_set_cpu_port(struct mv88e6xxx_chip *chip, int port)
{
- return mv88e6390_g1_monitor_write(chip, GLOBAL_MONITOR_CONTROL_CPU_DEST,
- port);
+ u16 ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_CPU_DEST;
+
+ return mv88e6390_g1_monitor_write(chip, ptr, port);
}

int mv88e6390_g1_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
{
+ u16 ptr;
int err;

/* 01:c2:80:00:00:00:00-01:c2:80:00:00:00:07 are Management */
- err = mv88e6390_g1_monitor_write(
- chip, GLOBAL_MONITOR_CONTROL_0180C280000000XLO, 0xff);
+ ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000000XLO;
+ err = mv88e6390_g1_monitor_write(chip, ptr, 0xff);
if (err)
return err;

/* 01:c2:80:00:00:00:08-01:c2:80:00:00:00:0f are Management */
- err = mv88e6390_g1_monitor_write(
- chip, GLOBAL_MONITOR_CONTROL_0180C280000000XHI, 0xff);
+ ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000000XHI;
+ err = mv88e6390_g1_monitor_write(chip, ptr, 0xff);
if (err)
return err;

/* 01:c2:80:00:00:00:20-01:c2:80:00:00:00:27 are Management */
- err = mv88e6390_g1_monitor_write(
- chip, GLOBAL_MONITOR_CONTROL_0180C280000002XLO, 0xff);
+ ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000002XLO;
+ err = mv88e6390_g1_monitor_write(chip, ptr, 0xff);
if (err)
return err;

/* 01:c2:80:00:00:00:28-01:c2:80:00:00:00:2f are Management */
- return mv88e6390_g1_monitor_write(
- chip, GLOBAL_MONITOR_CONTROL_0180C280000002XHI, 0xff);
+ ptr = MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000002XHI;
+ err = mv88e6390_g1_monitor_write(chip, ptr, 0xff);
+ if (err)
+ return err;
+
+ return 0;
}

/* Offset 0x1c: Global Control 2 */
diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h
index af1a510f7a45..020b21c0c9c3 100644
--- a/drivers/net/dsa/mv88e6xxx/global1.h
+++ b/drivers/net/dsa/mv88e6xxx/global1.h
@@ -156,23 +156,27 @@
#define GLOBAL_IP_PRI_7 0x17
#define GLOBAL_IEEE_PRI 0x18
#define GLOBAL_CORE_TAG_TYPE 0x19
-#define GLOBAL_MONITOR_CONTROL 0x1a
-#define GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT 12
-#define GLOBAL_MONITOR_CONTROL_INGRESS_MASK (0xf << 12)
-#define GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT 8
-#define GLOBAL_MONITOR_CONTROL_EGRESS_MASK (0xf << 8)
-#define GLOBAL_MONITOR_CONTROL_ARP_SHIFT 4
-#define GLOBAL_MONITOR_CONTROL_ARP_MASK (0xf << 4)
-#define GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT 0
-#define GLOBAL_MONITOR_CONTROL_ARP_DISABLED (0xf0)
-#define GLOBAL_MONITOR_CONTROL_UPDATE BIT(15)
-#define GLOBAL_MONITOR_CONTROL_0180C280000000XLO (0x00 << 8)
-#define GLOBAL_MONITOR_CONTROL_0180C280000000XHI (0x01 << 8)
-#define GLOBAL_MONITOR_CONTROL_0180C280000002XLO (0x02 << 8)
-#define GLOBAL_MONITOR_CONTROL_0180C280000002XHI (0x03 << 8)
-#define GLOBAL_MONITOR_CONTROL_INGRESS (0x20 << 8)
-#define GLOBAL_MONITOR_CONTROL_EGRESS (0x21 << 8)
-#define GLOBAL_MONITOR_CONTROL_CPU_DEST (0x30 << 8)
+
+/* Offset 0x1A: Monitor Control */
+#define MV88E6185_G1_MONITOR_CTL 0x1a
+#define MV88E6185_G1_MONITOR_CTL_INGRESS_DEST_MASK 0xf000
+#define MV88E6185_G1_MONITOR_CTL_EGRESS_DEST_MASK 0x0f00
+#define MV88E6185_G1_MONITOR_CTL_ARP_DEST_MASK 0x00f0
+#define MV88E6352_G1_MONITOR_CTL_CPU_DEST_MASK 0x00f0
+#define MV88E6352_G1_MONITOR_CTL_MIRROR_DEST_MASK 0x000f
+
+/* Offset 0x1A: Monitor & MGMT Control Register */
+#define MV88E6390_G1_MONITOR_MGMT_CTL 0x1a
+#define MV88E6390_G1_MONITOR_MGMT_CTL_UPDATE 0x8000
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_MASK 0x3f00
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000000XLO 0x0000
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000000XHI 0x0100
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000002XLO 0x0200
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_0180C280000002XHI 0x0300
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_INGRESS_DEST 0x2000
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_EGRESS_DEST 0x2100
+#define MV88E6390_G1_MONITOR_MGMT_CTL_PTR_CPU_DEST 0x3000
+#define MV88E6390_G1_MONITOR_MGMT_CTL_DATA_MASK 0x00ff

/* Offset 0x1C: Global Control 2 */
#define MV88E6XXX_G1_CTL2 0x1c
--
2.13.1
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