[PATCH net-next 00/12] net: dsa: mv88e6xxx: cleanup capabilities

[PATCH net-next 00/12] net: dsa: mv88e6xxx: cleanup capabilities

[Vivien Didelot]

This patch series removes the remaining capabilities as well as the
flags bitmap in the info structures. Most of them are turned into ops,
or new info members.

There is no mv88e6xxx_cap enum or bitmap flags anymore, only
mv88e6xxx_info and mv88e6xxx_ops structures.

While reviewing and documenting the related G2 registers, fix a few
inconsistencies: 88E6185 has no interrupt in G2 and 88E6390 has a POT.

Except these two adjustments, there is no functional changes.

Vivien Didelot (12):
  net: dsa: mv88e6xxx: remove unneeded dsa header
  net: dsa: mv88e6xxx: remove LED control register
  net: dsa: mv88e6xxx: fix 88E6321 family comment
  net: dsa: mv88e6xxx: remove unused capabilities
  net: dsa: mv88e6xxx: remove 88E6185 G2 interrupt
  net: dsa: mv88e6xxx: add number of Global 2 IRQs
  net: dsa: mv88e6xxx: distinguish Global 2 Rsvd2CPU
  net: dsa: mv88e6xxx: add POT flag to 88E6390
  net: dsa: mv88e6xxx: add POT operation
  net: dsa: mv88e6xxx: add a global2_addr info flag
  net: dsa: mv88e6xxx: add Energy Detect ops
  net: dsa: mv88e6xxx: add a multi_chip info flag

 drivers/net/dsa/mv88e6xxx/chip.c    | 291 ++++++++++++++++++++++++------------
 drivers/net/dsa/mv88e6xxx/chip.h    | 152 +++----------------
 drivers/net/dsa/mv88e6xxx/global2.c | 104 +++++++++----
 drivers/net/dsa/mv88e6xxx/global2.h |  41 ++++-
 drivers/net/dsa/mv88e6xxx/phy.c     |  97 +++++++++++-
 drivers/net/dsa/mv88e6xxx/phy.h     |  22 +++
 drivers/net/dsa/mv88e6xxx/port.c    |  17 +++
 drivers/net/dsa/mv88e6xxx/port.h    |   6 +-
 8 files changed, 460 insertions(+), 270 deletions(-)

-- 
2.13.2

[PATCH net-next 01/12] net: dsa: mv88e6xxx: remove unneeded dsa header

[Vivien Didelot]

phy.c does not need to include the DSA public header. Remove it.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/phy.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/phy.c b/drivers/net/dsa/mv88e6xxx/phy.c
index 3500ac0ea848..436668bd50dc 100644
--- a/drivers/net/dsa/mv88e6xxx/phy.c
+++ b/drivers/net/dsa/mv88e6xxx/phy.c
@@ -13,7 +13,6 @@
 
 #include <linux/mdio.h>
 #include <linux/module.h>
-#include <net/dsa.h>
 
 #include "chip.h"
 #include "phy.h"
-- 
2.13.2

[PATCH net-next 02/12] net: dsa: mv88e6xxx: remove LED control register

[Vivien Didelot]

We don't support LED control yet, remove its register definition.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/port.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index 8f3991bf1851..b16d5f0e6e9c 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -216,9 +216,6 @@
 /* Offset 0x13: OutFiltered Counter */
 #define MV88E6XXX_PORT_OUT_FILTERED	0x13
 
-/* Offset 0x16: LED Control */
-#define MV88E6XXX_PORT_LED_CONTROL	0x16
-
 /* Offset 0x18: IEEE Priority Mapping Table */
 #define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE			0x18
 #define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_UPDATE		0x8000
-- 
2.13.2

[PATCH net-next 03/12] net: dsa: mv88e6xxx: fix 88E6321 family comment

[Vivien Didelot]

MV88E6XXX_FAMILY_6321 is undefined, 88E6321's family is 88E6320,
fix this.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 53b088166c28..51f2797ecb52 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2959,7 +2959,7 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
 };
 
 static const struct mv88e6xxx_ops mv88e6321_ops = {
-	/* MV88E6XXX_FAMILY_6321 */
+	/* MV88E6XXX_FAMILY_6320 */
 	.irl_init_all = mv88e6352_g2_irl_init_all,
 	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
 	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
-- 
2.13.2

[PATCH net-next 04/12] net: dsa: mv88e6xxx: remove unused capabilities

[Vivien Didelot]

Remove the forgotten capabilities and related flags from previous
cleanups.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.h | 29 +++--------------------------
 1 file changed, 3 insertions(+), 26 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 086444016352..9ccf5d03346a 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -109,11 +109,6 @@ enum mv88e6xxx_cap {
 	MV88E6XXX_CAP_SMI_CMD,		/* (0x00) SMI Command */
 	MV88E6XXX_CAP_SMI_DATA,		/* (0x01) SMI Data */
 
-	/* Switch Global (1) Registers.
-	 */
-	MV88E6XXX_CAP_G1_ATU_FID,	/* (0x01) ATU FID Register */
-	MV88E6XXX_CAP_G1_VTU_FID,	/* (0x02) VTU FID Register */
-
 	/* Switch Global 2 Registers.
 	 * The device contains a second set of global 16-bit registers.
 	 */
@@ -122,17 +117,6 @@ enum mv88e6xxx_cap {
 	MV88E6XXX_CAP_G2_MGMT_EN_2X,	/* (0x02) MGMT Enable Register 2x */
 	MV88E6XXX_CAP_G2_MGMT_EN_0X,	/* (0x03) MGMT Enable Register 0x */
 	MV88E6XXX_CAP_G2_POT,		/* (0x0f) Priority Override Table */
-
-	/* Per VLAN Spanning Tree Unit (STU).
-	 * The Port State database, if present, is accessed through VTU
-	 * operations and dedicated SID registers. See MV88E6352_G1_VTU_SID.
-	 */
-	MV88E6XXX_CAP_STU,
-
-	/* VLAN Table Unit.
-	 * The VTU is used to program 802.1Q VLANs. See MV88E6XXX_G1_VTU_OP.
-	 */
-	MV88E6XXX_CAP_VTU,
 };
 
 /* Bitmask of capabilities */
@@ -141,8 +125,6 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAG_SMI_CMD		BIT_ULL(MV88E6XXX_CAP_SMI_CMD)
 #define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
 
-#define MV88E6XXX_FLAG_G1_VTU_FID	BIT_ULL(MV88E6XXX_CAP_G1_VTU_FID)
-
 #define MV88E6XXX_FLAG_GLOBAL2		BIT_ULL(MV88E6XXX_CAP_GLOBAL2)
 #define MV88E6XXX_FLAG_G2_INT		BIT_ULL(MV88E6XXX_CAP_G2_INT)
 #define MV88E6XXX_FLAG_G2_MGMT_EN_2X	BIT_ULL(MV88E6XXX_CAP_G2_MGMT_EN_2X)
@@ -160,8 +142,7 @@ enum mv88e6xxx_cap {
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6097	\
-	(MV88E6XXX_FLAG_G1_VTU_FID |	\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
+	(MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAG_G2_INT |        \
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
@@ -169,8 +150,7 @@ enum mv88e6xxx_cap {
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6165	\
-	(MV88E6XXX_FLAG_G1_VTU_FID |	\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
+	(MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
@@ -193,15 +173,13 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6341	\
 	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAG_G1_VTU_FID |	\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6351	\
-	(MV88E6XXX_FLAG_G1_VTU_FID |	\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
+	(MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
@@ -210,7 +188,6 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6352	\
 	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAG_G1_VTU_FID |	\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
-- 
2.13.2

[PATCH net-next 05/12] net: dsa: mv88e6xxx: remove 88E6185 G2 interrupt

[Vivien Didelot]

The 88E6185 family has no Global 2 Interrupt Source or Mask registers.
Remove the MV88E6XXX_FLAG_G2_INT from MV88E6XXX_FLAGS_FAMILY_6185.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 9ccf5d03346a..8eab123f0fed 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -159,7 +159,6 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6185	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
-- 
2.13.2

[PATCH net-next 06/12] net: dsa: mv88e6xxx: add number of Global 2 IRQs

[Vivien Didelot]

Similarly to g1_irqs, add a g2_irqs member to the info structure to
indicates the presence of the Global 2 Interrupt Source and Mask
registers.

At the same time, provide helpers and document the registers since they
differ a bit between 88E6352 and 88E6390 families.

This allows us to get rid of the MV88E6XXX_FLAG_G2_INT flag.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c    | 27 ++++++++++++++++++++++++---
 drivers/net/dsa/mv88e6xxx/chip.h    |  9 +--------
 drivers/net/dsa/mv88e6xxx/global2.c | 22 ++++++++++++++++++++--
 drivers/net/dsa/mv88e6xxx/global2.h | 19 +++++++++++++++++--
 4 files changed, 62 insertions(+), 15 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 51f2797ecb52..1be0bc5e7c3f 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3207,6 +3207,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3242,6 +3243,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3260,6 +3262,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3295,6 +3298,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.atu_move_port_mask = 0x1f,
+		.g2_irqs = 10,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
 		.flags = MV88E6XXX_FLAGS_FAMILY_6341,
@@ -3312,6 +3316,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3330,6 +3335,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3348,6 +3354,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3366,6 +3373,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3384,6 +3392,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3402,6 +3411,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3438,6 +3448,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.tag_protocol = DSA_TAG_PROTO_DSA,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
+		.g2_irqs = 14,
 		.pvt = true,
 		.atu_move_port_mask = 0x1f,
 		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
@@ -3455,6 +3466,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
+		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3473,6 +3485,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
+		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3491,6 +3504,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3509,6 +3523,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
+		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3562,6 +3577,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.atu_move_port_mask = 0x1f,
+		.g2_irqs = 10,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
 		.flags = MV88E6XXX_FLAGS_FAMILY_6341,
@@ -3579,6 +3595,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3597,6 +3614,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3615,6 +3633,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
+		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
@@ -3632,6 +3651,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
+		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3649,6 +3669,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.global1_addr = 0x1b,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
+		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
@@ -3970,7 +3991,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
 		if (err)
 			goto out;
 
-		if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT)) {
+		if (chip->info->g2_irqs > 0) {
 			err = mv88e6xxx_g2_irq_setup(chip);
 			if (err)
 				goto out_g1_irq;
@@ -3990,7 +4011,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
 out_mdio:
 	mv88e6xxx_mdios_unregister(chip);
 out_g2_irq:
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT) && chip->irq > 0)
+	if (chip->info->g2_irqs > 0 && chip->irq > 0)
 		mv88e6xxx_g2_irq_free(chip);
 out_g1_irq:
 	if (chip->irq > 0) {
@@ -4012,7 +4033,7 @@ static void mv88e6xxx_remove(struct mdio_device *mdiodev)
 	mv88e6xxx_mdios_unregister(chip);
 
 	if (chip->irq > 0) {
-		if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT))
+		if (chip->info->g2_irqs > 0)
 			mv88e6xxx_g2_irq_free(chip);
 		mv88e6xxx_g1_irq_free(chip);
 	}
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 8eab123f0fed..2e760fd0ad24 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -113,7 +113,6 @@ enum mv88e6xxx_cap {
 	 * The device contains a second set of global 16-bit registers.
 	 */
 	MV88E6XXX_CAP_GLOBAL2,
-	MV88E6XXX_CAP_G2_INT,		/* (0x00) Interrupt Status */
 	MV88E6XXX_CAP_G2_MGMT_EN_2X,	/* (0x02) MGMT Enable Register 2x */
 	MV88E6XXX_CAP_G2_MGMT_EN_0X,	/* (0x03) MGMT Enable Register 0x */
 	MV88E6XXX_CAP_G2_POT,		/* (0x0f) Priority Override Table */
@@ -126,7 +125,6 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
 
 #define MV88E6XXX_FLAG_GLOBAL2		BIT_ULL(MV88E6XXX_CAP_GLOBAL2)
-#define MV88E6XXX_FLAG_G2_INT		BIT_ULL(MV88E6XXX_CAP_G2_INT)
 #define MV88E6XXX_FLAG_G2_MGMT_EN_2X	BIT_ULL(MV88E6XXX_CAP_G2_MGMT_EN_2X)
 #define MV88E6XXX_FLAG_G2_MGMT_EN_0X	BIT_ULL(MV88E6XXX_CAP_G2_MGMT_EN_0X)
 #define MV88E6XXX_FLAG_G2_POT		BIT_ULL(MV88E6XXX_CAP_G2_POT)
@@ -143,7 +141,6 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6097	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |        \
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
@@ -151,7 +148,6 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6165	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
@@ -173,13 +169,11 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAGS_FAMILY_6341	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6351	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
@@ -188,7 +182,6 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAGS_FAMILY_6352	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
 	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
@@ -197,7 +190,6 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAGS_FAMILY_6390	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_INT |        \
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 struct mv88e6xxx_ops;
@@ -213,6 +205,7 @@ struct mv88e6xxx_info {
 	unsigned int global1_addr;
 	unsigned int age_time_coeff;
 	unsigned int g1_irqs;
+	unsigned int g2_irqs;
 	bool pvt;
 	enum dsa_tag_protocol tag_protocol;
 	unsigned long long flags;
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index 158d0f499874..be704c98dcbb 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -40,6 +40,21 @@ static int mv88e6xxx_g2_wait(struct mv88e6xxx_chip *chip, int reg, u16 mask)
 	return mv88e6xxx_wait(chip, MV88E6XXX_G2, reg, mask);
 }
 
+/* Offset 0x00: Interrupt Source Register */
+
+static int mv88e6xxx_g2_int_source(struct mv88e6xxx_chip *chip, u16 *src)
+{
+	/* Read (and clear most of) the Interrupt Source bits */
+	return mv88e6xxx_g2_read(chip, MV88E6XXX_G2_INT_SRC, src);
+}
+
+/* Offset 0x01: Interrupt Mask Register */
+
+static int mv88e6xxx_g2_int_mask(struct mv88e6xxx_chip *chip, u16 mask)
+{
+	return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_INT_MASK, mask);
+}
+
 /* Offset 0x02: Management Enable 2x */
 /* Offset 0x03: Management Enable 0x */
 
@@ -933,7 +948,7 @@ static irqreturn_t mv88e6xxx_g2_irq_thread_fn(int irq, void *dev_id)
 	u16 reg;
 
 	mutex_lock(&chip->reg_lock);
-	err = mv88e6xxx_g2_read(chip, MV88E6XXX_G2_INT_SOURCE, &reg);
+	err = mv88e6xxx_g2_int_source(chip, &reg);
 	mutex_unlock(&chip->reg_lock);
 	if (err)
 		goto out;
@@ -959,8 +974,11 @@ static void mv88e6xxx_g2_irq_bus_lock(struct irq_data *d)
 static void mv88e6xxx_g2_irq_bus_sync_unlock(struct irq_data *d)
 {
 	struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d);
+	int err;
 
-	mv88e6xxx_g2_write(chip, MV88E6XXX_G2_INT_MASK, ~chip->g2_irq.masked);
+	err = mv88e6xxx_g2_int_mask(chip, ~chip->g2_irq.masked);
+	if (err)
+		dev_err(chip->dev, "failed to mask interrupts\n");
 
 	mutex_unlock(&chip->reg_lock);
 }
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index 317ffd8f323d..7b21b2556af2 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -20,11 +20,26 @@
 #define MV88E6XXX_G2	0x1c
 
 /* Offset 0x00: Interrupt Source Register */
-#define MV88E6XXX_G2_INT_SOURCE			0x00
+#define MV88E6XXX_G2_INT_SRC			0x00
+#define MV88E6XXX_G2_INT_SRC_WDOG		0x8000
+#define MV88E6XXX_G2_INT_SRC_JAM_LIMIT		0x4000
+#define MV88E6XXX_G2_INT_SRC_DUPLEX_MISMATCH	0x2000
+#define MV88E6XXX_G2_INT_SRC_WAKE_EVENT		0x1000
+#define MV88E6352_G2_INT_SRC_SERDES		0x0800
+#define MV88E6352_G2_INT_SRC_PHY		0x001f
+#define MV88E6390_G2_INT_SRC_PHY		0x07fe
+
 #define MV88E6XXX_G2_INT_SOURCE_WATCHDOG	15
 
 /* Offset 0x01: Interrupt Mask Register */
-#define MV88E6XXX_G2_INT_MASK	0x01
+#define MV88E6XXX_G2_INT_MASK			0x01
+#define MV88E6XXX_G2_INT_MASK_WDOG		0x8000
+#define MV88E6XXX_G2_INT_MASK_JAM_LIMIT		0x4000
+#define MV88E6XXX_G2_INT_MASK_DUPLEX_MISMATCH	0x2000
+#define MV88E6XXX_G2_INT_MASK_WAKE_EVENT	0x1000
+#define MV88E6352_G2_INT_MASK_SERDES		0x0800
+#define MV88E6352_G2_INT_MASK_PHY		0x001f
+#define MV88E6390_G2_INT_MASK_PHY		0x07fe
 
 /* Offset 0x02: MGMT Enable Register 2x */
 #define MV88E6XXX_G2_MGMT_EN_2X		0x02
-- 
2.13.2

[PATCH net-next 07/12] net: dsa: mv88e6xxx: distinguish Global 2 Rsvd2CPU

[Vivien Didelot]

The 88E6185 family only has one 16-bit register to mark the 16 802.1D
reserved multicast addresses in the range of 01:80:C2:00:00:0x as MGMT.

The 88E6352 family also has one 16-bit register to mark the 16 GARP
reserved multicast addresses in the range of 01:80:C2:00:00:2x as MGMT.

Split the existing mv88e6095 prefixed mgmt_rsvd2cpu operation into two
distinct mv88e6185 and mv88e6352 prefixed operations, and wrap its call
into a mv88e6xxx_rsvd2cpu_setup helper.

This allows us to also get rid of the MV88E6XXX_CAP_G2_MGMT_EN_* flags.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c    | 55 ++++++++++++++++---------------
 drivers/net/dsa/mv88e6xxx/chip.h    | 17 ----------
 drivers/net/dsa/mv88e6xxx/global2.c | 65 ++++++++++++++++++++++++++++---------
 drivers/net/dsa/mv88e6xxx/global2.h | 11 +++++--
 4 files changed, 86 insertions(+), 62 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 1be0bc5e7c3f..874e2a154834 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -926,6 +926,14 @@ static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port,
 		dev_err(ds->dev, "p%d: failed to update state\n", port);
 }
 
+static int mv88e6xxx_rsvd2cpu_setup(struct mv88e6xxx_chip *chip)
+{
+	if (chip->info->ops->mgmt_rsvd2cpu)
+		return chip->info->ops->mgmt_rsvd2cpu(chip);
+
+	return 0;
+}
+
 static int mv88e6xxx_atu_setup(struct mv88e6xxx_chip *chip)
 {
 	int err;
@@ -2142,16 +2150,9 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
 	if (err)
 		goto unlock;
 
-	/* Some generations have the configuration of sending reserved
-	 * management frames to the CPU in global2, others in
-	 * global1. Hence it does not fit the two setup functions
-	 * above.
-	 */
-	if (chip->info->ops->mgmt_rsvd2cpu) {
-		err = chip->info->ops->mgmt_rsvd2cpu(chip);
-		if (err)
-			goto unlock;
-	}
+	err = mv88e6xxx_rsvd2cpu_setup(chip);
+	if (err)
+		goto unlock;
 
 unlock:
 	mutex_unlock(&chip->reg_lock);
@@ -2385,7 +2386,7 @@ static const struct mv88e6xxx_ops mv88e6085_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.ppu_enable = mv88e6185_g1_ppu_enable,
 	.ppu_disable = mv88e6185_g1_ppu_disable,
 	.reset = mv88e6185_g1_reset,
@@ -2408,7 +2409,7 @@ static const struct mv88e6xxx_ops mv88e6095_ops = {
 	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
 	.stats_get_strings = mv88e6095_stats_get_strings,
 	.stats_get_stats = mv88e6095_stats_get_stats,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6185_g2_mgmt_rsvd2cpu,
 	.ppu_enable = mv88e6185_g1_ppu_enable,
 	.ppu_disable = mv88e6185_g1_ppu_disable,
 	.reset = mv88e6185_g1_reset,
@@ -2441,7 +2442,7 @@ static const struct mv88e6xxx_ops mv88e6097_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2467,7 +2468,7 @@ static const struct mv88e6xxx_ops mv88e6123_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2496,7 +2497,7 @@ static const struct mv88e6xxx_ops mv88e6131_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6185_g2_mgmt_rsvd2cpu,
 	.ppu_enable = mv88e6185_g1_ppu_enable,
 	.ppu_disable = mv88e6185_g1_ppu_disable,
 	.reset = mv88e6185_g1_reset,
@@ -2563,7 +2564,7 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2587,7 +2588,7 @@ static const struct mv88e6xxx_ops mv88e6165_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2619,7 +2620,7 @@ static const struct mv88e6xxx_ops mv88e6171_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2653,7 +2654,7 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2686,7 +2687,7 @@ static const struct mv88e6xxx_ops mv88e6175_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2720,7 +2721,7 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2746,7 +2747,7 @@ static const struct mv88e6xxx_ops mv88e6185_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6185_g2_mgmt_rsvd2cpu,
 	.ppu_enable = mv88e6185_g1_ppu_enable,
 	.ppu_disable = mv88e6185_g1_ppu_disable,
 	.reset = mv88e6185_g1_reset,
@@ -2884,7 +2885,7 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2952,7 +2953,7 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
 	.stats_get_stats = mv88e6320_stats_get_stats,
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6185_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
@@ -3049,7 +3050,7 @@ static const struct mv88e6xxx_ops mv88e6350_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -3081,7 +3082,7 @@ static const struct mv88e6xxx_ops mv88e6351_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -3115,7 +3116,7 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
-	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
+	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 2e760fd0ad24..48233971759e 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -113,8 +113,6 @@ enum mv88e6xxx_cap {
 	 * The device contains a second set of global 16-bit registers.
 	 */
 	MV88E6XXX_CAP_GLOBAL2,
-	MV88E6XXX_CAP_G2_MGMT_EN_2X,	/* (0x02) MGMT Enable Register 2x */
-	MV88E6XXX_CAP_G2_MGMT_EN_0X,	/* (0x03) MGMT Enable Register 0x */
 	MV88E6XXX_CAP_G2_POT,		/* (0x0f) Priority Override Table */
 };
 
@@ -125,8 +123,6 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
 
 #define MV88E6XXX_FLAG_GLOBAL2		BIT_ULL(MV88E6XXX_CAP_GLOBAL2)
-#define MV88E6XXX_FLAG_G2_MGMT_EN_2X	BIT_ULL(MV88E6XXX_CAP_G2_MGMT_EN_2X)
-#define MV88E6XXX_FLAG_G2_MGMT_EN_0X	BIT_ULL(MV88E6XXX_CAP_G2_MGMT_EN_0X)
 #define MV88E6XXX_FLAG_G2_POT		BIT_ULL(MV88E6XXX_CAP_G2_POT)
 
 /* Multi-chip Addressing Mode */
@@ -136,33 +132,25 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6095	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6097	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6165	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6185	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6320	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
@@ -174,16 +162,12 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6351	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6352	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_2X |	\
-	 MV88E6XXX_FLAG_G2_MGMT_EN_0X |	\
 	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
@@ -418,7 +402,6 @@ struct mv88e6xxx_ops {
 	int (*set_egress_port)(struct mv88e6xxx_chip *chip, int port);
 	const struct mv88e6xxx_irq_ops *watchdog_ops;
 
-	/* Can be either in g1 or g2, so don't use a prefix */
 	int (*mgmt_rsvd2cpu)(struct mv88e6xxx_chip *chip);
 
 	/* Power on/off a SERDES interface */
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index be704c98dcbb..6b6ebbd6d322 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -56,29 +56,65 @@ static int mv88e6xxx_g2_int_mask(struct mv88e6xxx_chip *chip, u16 mask)
 }
 
 /* Offset 0x02: Management Enable 2x */
+
+static int mv88e6xxx_g2_mgmt_enable_2x(struct mv88e6xxx_chip *chip, u16 en2x)
+{
+	return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_MGMT_EN_2X, en2x);
+}
+
 /* Offset 0x03: Management Enable 0x */
 
-int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
+static int mv88e6xxx_g2_mgmt_enable_0x(struct mv88e6xxx_chip *chip, u16 en0x)
 {
+	return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_MGMT_EN_0X, en0x);
+}
+
+/* Offset 0x05: Switch Management Register */
+
+static int mv88e6xxx_g2_switch_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip,
+					     bool enable)
+{
+	u16 val;
 	int err;
 
-	/* Consider the frames with reserved multicast destination
-	 * addresses matching 01:80:c2:00:00:2x as MGMT.
-	 */
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_MGMT_EN_2X)) {
-		err = mv88e6xxx_g2_write(chip, MV88E6XXX_G2_MGMT_EN_2X, 0xffff);
-		if (err)
-			return err;
-	}
+	err = mv88e6xxx_g2_read(chip, MV88E6XXX_G2_SWITCH_MGMT, &val);
+	if (err)
+		return err;
+
+	if (enable)
+		val |= MV88E6XXX_G2_SWITCH_MGMT_RSVD2CPU;
+	else
+		val &= ~MV88E6XXX_G2_SWITCH_MGMT_RSVD2CPU;
+
+	return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_SWITCH_MGMT, val);
+}
+
+int mv88e6185_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
+{
+	int err;
 
 	/* Consider the frames with reserved multicast destination
 	 * addresses matching 01:80:c2:00:00:0x as MGMT.
 	 */
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_MGMT_EN_0X))
-		return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_MGMT_EN_0X,
-					  0xffff);
+	err = mv88e6xxx_g2_mgmt_enable_0x(chip, 0xffff);
+	if (err)
+		return err;
 
-	return 0;
+	return mv88e6xxx_g2_switch_mgmt_rsvd2cpu(chip, true);
+}
+
+int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
+{
+	int err;
+
+	/* Consider the frames with reserved multicast destination
+	 * addresses matching 01:80:c2:00:00:2x as MGMT.
+	 */
+	err = mv88e6xxx_g2_mgmt_enable_2x(chip, 0xffff);
+	if (err)
+		return err;
+
+	return mv88e6185_g2_mgmt_rsvd2cpu(chip);
 }
 
 /* Offset 0x06: Device Mapping Table register */
@@ -1081,9 +1117,6 @@ int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
 	 * port at the highest priority.
 	 */
 	reg = MV88E6XXX_G2_SWITCH_MGMT_FORCE_FLOW_CTL_PRI | (0x7 << 4);
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_MGMT_EN_0X) ||
-	    mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_MGMT_EN_2X))
-		reg |= MV88E6XXX_G2_SWITCH_MGMT_RSVD2CPU | 0x7;
 	err = mv88e6xxx_g2_write(chip, MV88E6XXX_G2_SWITCH_MGMT, reg);
 	if (err)
 		return err;
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index 7b21b2556af2..487a81146c31 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -260,7 +260,9 @@ int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip);
 int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip);
 int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip);
 void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip);
-int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
+
+int mv88e6185_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
+int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
 
 extern const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops;
 extern const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops;
@@ -362,7 +364,12 @@ static inline void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip)
 {
 }
 
-static inline int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
+static inline int mv88e6185_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
 {
 	return -EOPNOTSUPP;
 }
-- 
2.13.2

[PATCH net-next 08/12] net: dsa: mv88e6xxx: add POT flag to 88E6390

[Vivien Didelot]

The 88E6390 family clear the Priority Override Table the same way as
88E6352, thus add MV88E6XXX_FLAG_G2_POT to MV88E6XXX_FLAGS_FAMILY_6390.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 48233971759e..52b52423df1f 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -174,6 +174,7 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAGS_FAMILY_6390	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
+	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 struct mv88e6xxx_ops;
-- 
2.13.2

[PATCH net-next 09/12] net: dsa: mv88e6xxx: add POT operation

[Vivien Didelot]

Add a pot_clear operation to clear the Priority Override Table and wrap
its call into a mv88e6xxx_pot_setup helper.

This allows us to get rid of the MV88E6XXX_FLAG_G2_POT flag.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c    | 34 ++++++++++++++++++++++++++++++++++
 drivers/net/dsa/mv88e6xxx/chip.h    | 12 +++---------
 drivers/net/dsa/mv88e6xxx/global2.c |  9 +--------
 drivers/net/dsa/mv88e6xxx/global2.h |  7 +++++++
 4 files changed, 45 insertions(+), 17 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 874e2a154834..6351230f82ad 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -926,6 +926,14 @@ static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port,
 		dev_err(ds->dev, "p%d: failed to update state\n", port);
 }
 
+static int mv88e6xxx_pot_setup(struct mv88e6xxx_chip *chip)
+{
+	if (chip->info->ops->pot_clear)
+		return chip->info->ops->pot_clear(chip);
+
+	return 0;
+}
+
 static int mv88e6xxx_rsvd2cpu_setup(struct mv88e6xxx_chip *chip)
 {
 	if (chip->info->ops->mgmt_rsvd2cpu)
@@ -2150,6 +2158,10 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
 	if (err)
 		goto unlock;
 
+	err = mv88e6xxx_pot_setup(chip);
+	if (err)
+		goto unlock;
+
 	err = mv88e6xxx_rsvd2cpu_setup(chip);
 	if (err)
 		goto unlock;
@@ -2387,6 +2399,7 @@ static const struct mv88e6xxx_ops mv88e6085_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.ppu_enable = mv88e6185_g1_ppu_enable,
 	.ppu_disable = mv88e6185_g1_ppu_disable,
 	.reset = mv88e6185_g1_reset,
@@ -2443,6 +2456,7 @@ static const struct mv88e6xxx_ops mv88e6097_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2469,6 +2483,7 @@ static const struct mv88e6xxx_ops mv88e6123_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2534,6 +2549,7 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu =  mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2565,6 +2581,7 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2589,6 +2606,7 @@ static const struct mv88e6xxx_ops mv88e6165_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2621,6 +2639,7 @@ static const struct mv88e6xxx_ops mv88e6171_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2655,6 +2674,7 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2688,6 +2708,7 @@ static const struct mv88e6xxx_ops mv88e6175_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2722,6 +2743,7 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2783,6 +2805,7 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
@@ -2817,6 +2840,7 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
@@ -2851,6 +2875,7 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
@@ -2886,6 +2911,7 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -2921,6 +2947,7 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
@@ -2954,6 +2981,7 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
 	.set_cpu_port = mv88e6095_g1_set_cpu_port,
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6185_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
@@ -3019,6 +3047,7 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu =  mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -3051,6 +3080,7 @@ static const struct mv88e6xxx_ops mv88e6350_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -3083,6 +3113,7 @@ static const struct mv88e6xxx_ops mv88e6351_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -3117,6 +3148,7 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
 	.set_egress_port = mv88e6095_g1_set_egress_port,
 	.watchdog_ops = &mv88e6097_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
@@ -3154,6 +3186,7 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
@@ -3190,6 +3223,7 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
 	.set_egress_port = mv88e6390_g1_set_egress_port,
 	.watchdog_ops = &mv88e6390_watchdog_ops,
 	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
+	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 52b52423df1f..822286250aff 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -113,7 +113,6 @@ enum mv88e6xxx_cap {
 	 * The device contains a second set of global 16-bit registers.
 	 */
 	MV88E6XXX_CAP_GLOBAL2,
-	MV88E6XXX_CAP_G2_POT,		/* (0x0f) Priority Override Table */
 };
 
 /* Bitmask of capabilities */
@@ -123,7 +122,6 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
 
 #define MV88E6XXX_FLAG_GLOBAL2		BIT_ULL(MV88E6XXX_CAP_GLOBAL2)
-#define MV88E6XXX_FLAG_G2_POT		BIT_ULL(MV88E6XXX_CAP_G2_POT)
 
 /* Multi-chip Addressing Mode */
 #define MV88E6XXX_FLAGS_MULTI_CHIP	\
@@ -136,12 +134,10 @@ enum mv88e6xxx_cap {
 
 #define MV88E6XXX_FLAGS_FAMILY_6097	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6165	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6185	\
@@ -151,30 +147,25 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAGS_FAMILY_6320	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6341	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6351	\
 	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6352	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6390	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 struct mv88e6xxx_ops;
@@ -313,6 +304,9 @@ struct mv88e6xxx_ops {
 			 struct mii_bus *bus,
 			 int addr, int reg, u16 val);
 
+	/* Priority Override Table operations */
+	int (*pot_clear)(struct mv88e6xxx_chip *chip);
+
 	/* PHY Polling Unit (PPU) operations */
 	int (*ppu_enable)(struct mv88e6xxx_chip *chip);
 	int (*ppu_disable)(struct mv88e6xxx_chip *chip);
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index 6b6ebbd6d322..aaf98e818d0d 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -311,7 +311,7 @@ static int mv88e6xxx_g2_pot_write(struct mv88e6xxx_chip *chip, int pointer,
 	return mv88e6xxx_g2_update(chip, MV88E6XXX_G2_PRIO_OVERRIDE, val);
 }
 
-static int mv88e6xxx_g2_clear_pot(struct mv88e6xxx_chip *chip)
+int mv88e6xxx_g2_pot_clear(struct mv88e6xxx_chip *chip)
 {
 	int i, err;
 
@@ -1131,12 +1131,5 @@ int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
 	if (err)
 		return err;
 
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_POT)) {
-		/* Clear the priority override table. */
-		err = mv88e6xxx_g2_clear_pot(chip);
-		if (err)
-			return err;
-	}
-
 	return 0;
 }
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index 487a81146c31..d89d7b810a45 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -264,6 +264,8 @@ void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip);
 int mv88e6185_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
 int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
 
+int mv88e6xxx_g2_pot_clear(struct mv88e6xxx_chip *chip);
+
 extern const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops;
 extern const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops;
 
@@ -374,6 +376,11 @@ static inline int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
 	return -EOPNOTSUPP;
 }
 
+static inline int mv88e6xxx_g2_pot_clear(struct mv88e6xxx_chip *chip)
+{
+	return -EOPNOTSUPP;
+}
+
 static const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops = {};
 static const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops = {};
 
-- 
2.13.2

[PATCH net-next 10/12] net: dsa: mv88e6xxx: add a global2_addr info flag

[Vivien Didelot]

Similarly to global1_addr, add a global2_addr member in the info
structure to describe the presence of the Global 2 Registers.

This allows us to get rid of the MV88E6XXX_FLAG_GLOBAL2 flag.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c    | 28 +++++++++++++++++++++++++++-
 drivers/net/dsa/mv88e6xxx/chip.h    | 27 ++++++---------------------
 drivers/net/dsa/mv88e6xxx/global2.c |  8 ++++----
 drivers/net/dsa/mv88e6xxx/global2.h |  4 +---
 4 files changed, 38 insertions(+), 29 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 6351230f82ad..eb4871a66076 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2132,7 +2132,7 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
 		goto unlock;
 
 	/* Setup Switch Global 2 Registers */
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) {
+	if (chip->info->global2_addr) {
 		err = mv88e6xxx_g2_setup(chip);
 		if (err)
 			goto unlock;
@@ -3240,6 +3240,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.g2_irqs = 10,
@@ -3259,6 +3260,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
@@ -3276,6 +3278,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.g2_irqs = 10,
@@ -3295,6 +3298,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3314,6 +3318,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.atu_move_port_mask = 0xf,
@@ -3331,6 +3336,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.atu_move_port_mask = 0x1f,
 		.g2_irqs = 10,
@@ -3349,6 +3355,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3368,6 +3375,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3387,6 +3395,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3406,6 +3415,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3425,6 +3435,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3444,6 +3455,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3463,6 +3475,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
@@ -3480,6 +3493,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 8191,
 		.port_base_addr = 0x0,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
@@ -3499,6 +3513,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 8191,
 		.port_base_addr = 0x0,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
 		.g2_irqs = 14,
@@ -3518,6 +3533,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 8191,
 		.port_base_addr = 0x0,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
 		.g2_irqs = 14,
@@ -3537,6 +3553,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3556,6 +3573,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 8191,
 		.port_base_addr = 0x0,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
 		.g2_irqs = 14,
@@ -3575,6 +3593,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
@@ -3593,6 +3612,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
@@ -3610,6 +3630,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.atu_move_port_mask = 0x1f,
 		.g2_irqs = 10,
@@ -3628,6 +3649,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3647,6 +3669,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3666,6 +3689,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 4095,
 		.port_base_addr = 0x10,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.g2_irqs = 10,
@@ -3684,6 +3708,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 8191,
 		.port_base_addr = 0x0,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
 		.g2_irqs = 14,
@@ -3702,6 +3727,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.max_vid = 8191,
 		.port_base_addr = 0x0,
 		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
 		.age_time_coeff = 3750,
 		.g1_irqs = 9,
 		.g2_irqs = 14,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 822286250aff..15b793446400 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -108,11 +108,6 @@ enum mv88e6xxx_cap {
 	 */
 	MV88E6XXX_CAP_SMI_CMD,		/* (0x00) SMI Command */
 	MV88E6XXX_CAP_SMI_DATA,		/* (0x01) SMI Data */
-
-	/* Switch Global 2 Registers.
-	 * The device contains a second set of global 16-bit registers.
-	 */
-	MV88E6XXX_CAP_GLOBAL2,
 };
 
 /* Bitmask of capabilities */
@@ -121,51 +116,40 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAG_SMI_CMD		BIT_ULL(MV88E6XXX_CAP_SMI_CMD)
 #define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
 
-#define MV88E6XXX_FLAG_GLOBAL2		BIT_ULL(MV88E6XXX_CAP_GLOBAL2)
-
 /* Multi-chip Addressing Mode */
 #define MV88E6XXX_FLAGS_MULTI_CHIP	\
 	(MV88E6XXX_FLAG_SMI_CMD |	\
 	 MV88E6XXX_FLAG_SMI_DATA)
 
 #define MV88E6XXX_FLAGS_FAMILY_6095	\
-	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6097	\
-	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6165	\
-	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6185	\
-	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6320	\
 	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6341	\
 	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6351	\
-	(MV88E6XXX_FLAG_GLOBAL2 |	\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6352	\
 	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6390	\
 	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAG_GLOBAL2 |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 struct mv88e6xxx_ops;
@@ -179,6 +163,7 @@ struct mv88e6xxx_info {
 	unsigned int max_vid;
 	unsigned int port_base_addr;
 	unsigned int global1_addr;
+	unsigned int global2_addr;
 	unsigned int age_time_coeff;
 	unsigned int g1_irqs;
 	unsigned int g2_irqs;
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index aaf98e818d0d..16f556261022 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -22,22 +22,22 @@
 
 static int mv88e6xxx_g2_read(struct mv88e6xxx_chip *chip, int reg, u16 *val)
 {
-	return mv88e6xxx_read(chip, MV88E6XXX_G2, reg, val);
+	return mv88e6xxx_read(chip, chip->info->global2_addr, reg, val);
 }
 
 static int mv88e6xxx_g2_write(struct mv88e6xxx_chip *chip, int reg, u16 val)
 {
-	return mv88e6xxx_write(chip, MV88E6XXX_G2, reg, val);
+	return mv88e6xxx_write(chip, chip->info->global2_addr, reg, val);
 }
 
 static int mv88e6xxx_g2_update(struct mv88e6xxx_chip *chip, int reg, u16 update)
 {
-	return mv88e6xxx_update(chip, MV88E6XXX_G2, reg, update);
+	return mv88e6xxx_update(chip, chip->info->global2_addr, reg, update);
 }
 
 static int mv88e6xxx_g2_wait(struct mv88e6xxx_chip *chip, int reg, u16 mask)
 {
-	return mv88e6xxx_wait(chip, MV88E6XXX_G2, reg, mask);
+	return mv88e6xxx_wait(chip, chip->info->global2_addr, reg, mask);
 }
 
 /* Offset 0x00: Interrupt Source Register */
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index d89d7b810a45..669f59017b12 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -17,8 +17,6 @@
 
 #include "chip.h"
 
-#define MV88E6XXX_G2	0x1c
-
 /* Offset 0x00: Interrupt Source Register */
 #define MV88E6XXX_G2_INT_SRC			0x00
 #define MV88E6XXX_G2_INT_SRC_WDOG		0x8000
@@ -273,7 +271,7 @@ extern const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops;
 
 static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
 {
-	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) {
+	if (chip->info->global2_addr) {
 		dev_err(chip->dev, "this chip requires CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 enabled\n");
 		return -EOPNOTSUPP;
 	}
-- 
2.13.2

[PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Vivien Didelot]

The 88E6352 family supports Energy Detect and has one bit for Sense and
one bit for periodically transmit NLP (Energy Detect+TM). The 88E6390
family adds another bit to distinguish Auto or SW wake-up. Chips
supporting EEE all have an EEE Enabled bit in the Port Status Register.

This patch adds new ops for the PHY Energy Detect accesses.

This also allows us to get rid of the MV88E6XXX_FLAG_EEE flag.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 91 ++++++++++++++++++++++---------------
 drivers/net/dsa/mv88e6xxx/chip.h | 24 +++++-----
 drivers/net/dsa/mv88e6xxx/phy.c  | 96 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/dsa/mv88e6xxx/phy.h  | 22 +++++++++
 drivers/net/dsa/mv88e6xxx/port.c | 17 +++++++
 drivers/net/dsa/mv88e6xxx/port.h |  3 ++
 6 files changed, 204 insertions(+), 49 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index eb4871a66076..be61983dfed4 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -810,31 +810,40 @@ static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
 	mutex_unlock(&chip->reg_lock);
 }
 
+static int mv88e6xxx_energy_detect_read(struct mv88e6xxx_chip *chip, int port,
+					struct ethtool_eee *eee)
+{
+	int err;
+
+	if (!chip->info->ops->phy_energy_detect_read)
+		return -EOPNOTSUPP;
+
+	/* assign eee->eee_enabled and eee->tx_lpi_enabled */
+	err = chip->info->ops->phy_energy_detect_read(chip, port, eee);
+	if (err)
+		return err;
+
+	/* assign eee->eee_active */
+	return mv88e6xxx_port_status_eee(chip, port, eee);
+}
+
+static int mv88e6xxx_energy_detect_write(struct mv88e6xxx_chip *chip, int port,
+					 struct ethtool_eee *eee)
+{
+	if (!chip->info->ops->phy_energy_detect_write)
+		return -EOPNOTSUPP;
+
+	return chip->info->ops->phy_energy_detect_write(chip, port, eee);
+}
+
 static int mv88e6xxx_get_eee(struct dsa_switch *ds, int port,
 			     struct ethtool_eee *e)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
-	u16 reg;
 	int err;
 
-	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE))
-		return -EOPNOTSUPP;
-
 	mutex_lock(&chip->reg_lock);
-
-	err = mv88e6xxx_phy_read(chip, port, 16, &reg);
-	if (err)
-		goto out;
-
-	e->eee_enabled = !!(reg & 0x0200);
-	e->tx_lpi_enabled = !!(reg & 0x0100);
-
-	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &reg);
-	if (err)
-		goto out;
-
-	e->eee_active = !!(reg & MV88E6352_PORT_STS_EEE);
-out:
+	err = mv88e6xxx_energy_detect_read(chip, port, e);
 	mutex_unlock(&chip->reg_lock);
 
 	return err;
@@ -844,26 +853,10 @@ static int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
 			     struct phy_device *phydev, struct ethtool_eee *e)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
-	u16 reg;
 	int err;
 
-	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE))
-		return -EOPNOTSUPP;
-
 	mutex_lock(&chip->reg_lock);
-
-	err = mv88e6xxx_phy_read(chip, port, 16, &reg);
-	if (err)
-		goto out;
-
-	reg &= ~0x0300;
-	if (e->eee_enabled)
-		reg |= 0x0200;
-	if (e->tx_lpi_enabled)
-		reg |= 0x0100;
-
-	err = mv88e6xxx_phy_write(chip, port, 16, reg);
-out:
+	err = mv88e6xxx_energy_detect_write(chip, port, e);
 	mutex_unlock(&chip->reg_lock);
 
 	return err;
@@ -2528,6 +2521,8 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -2653,6 +2648,8 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
@@ -2722,6 +2719,8 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
@@ -2785,6 +2784,8 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -2820,6 +2821,8 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -2855,6 +2858,8 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -2890,6 +2895,8 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
@@ -2926,6 +2933,8 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -2962,6 +2971,8 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_speed = mv88e6185_port_set_speed,
@@ -2995,6 +3006,8 @@ static const struct mv88e6xxx_ops mv88e6321_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_speed = mv88e6185_port_set_speed,
@@ -3026,6 +3039,8 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -3127,6 +3142,8 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
@@ -3163,6 +3180,8 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
@@ -3201,6 +3220,8 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
 	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
 	.phy_read = mv88e6xxx_g2_smi_phy_read,
 	.phy_write = mv88e6xxx_g2_smi_phy_write,
+	.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
+	.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
 	.port_set_link = mv88e6xxx_port_set_link,
 	.port_set_duplex = mv88e6xxx_port_set_duplex,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 15b793446400..3fbee01d2d84 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -98,10 +98,6 @@ enum mv88e6xxx_family {
 };
 
 enum mv88e6xxx_cap {
-	/* Energy Efficient Ethernet.
-	 */
-	MV88E6XXX_CAP_EEE,
-
 	/* Multi-chip Addressing Mode.
 	 * Some chips respond to only 2 registers of its own SMI device address
 	 * when it is non-zero, and use indirect access to internal registers.
@@ -111,8 +107,6 @@ enum mv88e6xxx_cap {
 };
 
 /* Bitmask of capabilities */
-#define MV88E6XXX_FLAG_EEE		BIT_ULL(MV88E6XXX_CAP_EEE)
-
 #define MV88E6XXX_FLAG_SMI_CMD		BIT_ULL(MV88E6XXX_CAP_SMI_CMD)
 #define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
 
@@ -134,23 +128,19 @@ enum mv88e6xxx_cap {
 	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6320	\
-	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6341	\
-	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6351	\
 	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6352	\
-	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 #define MV88E6XXX_FLAGS_FAMILY_6390	\
-	(MV88E6XXX_FLAG_EEE |		\
-	 MV88E6XXX_FLAGS_MULTI_CHIP)
+	(MV88E6XXX_FLAGS_MULTI_CHIP)
 
 struct mv88e6xxx_ops;
 
@@ -289,6 +279,12 @@ struct mv88e6xxx_ops {
 			 struct mii_bus *bus,
 			 int addr, int reg, u16 val);
 
+	/* Copper Energy Detect operations */
+	int (*phy_energy_detect_read)(struct mv88e6xxx_chip *chip, int phy,
+				      struct ethtool_eee *eee);
+	int (*phy_energy_detect_write)(struct mv88e6xxx_chip *chip, int phy,
+				       struct ethtool_eee *eee);
+
 	/* Priority Override Table operations */
 	int (*pot_clear)(struct mv88e6xxx_chip *chip);
 
diff --git a/drivers/net/dsa/mv88e6xxx/phy.c b/drivers/net/dsa/mv88e6xxx/phy.c
index 436668bd50dc..317ae89cfa68 100644
--- a/drivers/net/dsa/mv88e6xxx/phy.c
+++ b/drivers/net/dsa/mv88e6xxx/phy.c
@@ -246,3 +246,99 @@ int mv88e6xxx_phy_setup(struct mv88e6xxx_chip *chip)
 {
 	return mv88e6xxx_phy_ppu_enable(chip);
 }
+
+/* Page 0, Register 16: Copper Specific Control Register 1 */
+
+int mv88e6352_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
+				     struct ethtool_eee *eee)
+{
+	u16 val;
+	int err;
+
+	err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
+	if (err)
+		return err;
+
+	val &= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK;
+
+	eee->eee_enabled = false;
+	eee->tx_lpi_enabled = false;
+
+	switch (val) {
+	case MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP:
+		eee->tx_lpi_enabled = true;
+		/* fall through... */
+	case MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV:
+		eee->eee_enabled = true;
+	}
+
+	return 0;
+}
+
+int mv88e6352_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
+				      struct ethtool_eee *eee)
+{
+	u16 val;
+	int err;
+
+	err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
+	if (err)
+		return err;
+
+	val &= ~MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK;
+
+	if (eee->eee_enabled)
+		val |= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV;
+	if (eee->tx_lpi_enabled)
+		val |= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP;
+
+	return mv88e6xxx_phy_write(chip, phy, MV88E6XXX_PHY_CSCTL1, val);
+}
+
+int mv88e6390_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
+				     struct ethtool_eee *eee)
+{
+	u16 val;
+	int err;
+
+	err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
+	if (err)
+		return err;
+
+	val &= MV88E6390_PHY_CSCTL1_ENERGY_DETECT_MASK;
+
+	eee->eee_enabled = false;
+	eee->tx_lpi_enabled = false;
+
+	switch (val) {
+	case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_AUTO:
+	case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_SW:
+		eee->tx_lpi_enabled = true;
+		/* fall through... */
+	case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_AUTO:
+	case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_SW:
+		eee->eee_enabled = true;
+	}
+
+	return 0;
+}
+
+int mv88e6390_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
+				      struct ethtool_eee *eee)
+{
+	u16 val;
+	int err;
+
+	err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
+	if (err)
+		return err;
+
+	val &= ~MV88E6390_PHY_CSCTL1_ENERGY_DETECT_MASK;
+
+	if (eee->eee_enabled)
+		val |= MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_AUTO;
+	if (eee->tx_lpi_enabled)
+		val |= MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_AUTO;
+
+	return mv88e6xxx_phy_write(chip, phy, MV88E6XXX_PHY_CSCTL1, val);
+}
diff --git a/drivers/net/dsa/mv88e6xxx/phy.h b/drivers/net/dsa/mv88e6xxx/phy.h
index 556b74a0502a..988802799ad6 100644
--- a/drivers/net/dsa/mv88e6xxx/phy.h
+++ b/drivers/net/dsa/mv88e6xxx/phy.h
@@ -17,6 +17,19 @@
 #define MV88E6XXX_PHY_PAGE		0x16
 #define MV88E6XXX_PHY_PAGE_COPPER	0x00
 
+/* Page 0, Register 16: Copper Specific Control Register 1 */
+#define MV88E6XXX_PHY_CSCTL1					16
+#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK			0x0300
+#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_OFF_MASK		0x0100 /* 0x */
+#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV		0x0200
+#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP		0x0300
+#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_MASK			0x0380
+#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_OFF_MASK		0x0180 /* 0xx */
+#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_AUTO	0x0200
+#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_SW		0x0280
+#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_AUTO	0x0300
+#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_SW		0x0380
+
 /* PHY Registers accesses implementations */
 int mv88e6165_phy_read(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
 		       int addr, int reg, u16 *val);
@@ -40,4 +53,13 @@ void mv88e6xxx_phy_init(struct mv88e6xxx_chip *chip);
 void mv88e6xxx_phy_destroy(struct mv88e6xxx_chip *chip);
 int mv88e6xxx_phy_setup(struct mv88e6xxx_chip *chip);
 
+int mv88e6352_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
+				     struct ethtool_eee *eee);
+int mv88e6352_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
+				      struct ethtool_eee *eee);
+int mv88e6390_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
+				     struct ethtool_eee *eee);
+int mv88e6390_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
+				      struct ethtool_eee *eee);
+
 #endif /*_MV88E6XXX_PHY_H */
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index a7801f6668a5..2837a9128557 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -35,6 +35,23 @@ int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
 	return mv88e6xxx_write(chip, addr, reg, val);
 }
 
+/* Offset 0x00: Port Status Register */
+
+int mv88e6xxx_port_status_eee(struct mv88e6xxx_chip *chip, int port,
+			      struct ethtool_eee *eee)
+{
+	u16 val;
+	int err;
+
+	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &val);
+	if (err)
+		return err;
+
+	eee->eee_active = !!(val & MV88E6352_PORT_STS_EEE);
+
+	return 0;
+}
+
 /* Offset 0x01: MAC (or PCS or Physical) Control Register
  *
  * Link, Duplex and Flow Control have one force bit, one value bit.
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index b16d5f0e6e9c..6fcab309cd85 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -241,6 +241,9 @@ int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
 int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
 			 u16 val);
 
+int mv88e6xxx_port_status_eee(struct mv88e6xxx_chip *chip, int port,
+			      struct ethtool_eee *eee);
+
 int mv88e6352_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
 				   phy_interface_t mode);
 int mv88e6390_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
-- 
2.13.2

[PATCH net-next 12/12] net: dsa: mv88e6xxx: add a multi_chip info flag

[Vivien Didelot]

Instead of relying on a bitmap flag, add a new multi_chip info flag to
describe the presence of the indirect SMI access though the two device
registers 0x0 and 0x1.

All remaining capabilities and flags are now unused. Remove the
mv88e6xxx_cap enum and the info flags bitmaps.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 54 ++++++++++++++++++-------------------
 drivers/net/dsa/mv88e6xxx/chip.h | 58 +++++-----------------------------------
 2 files changed, 33 insertions(+), 79 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index be61983dfed4..947ea352a57a 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3267,8 +3267,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6097,
 		.ops = &mv88e6085_ops,
 	},
 
@@ -3285,8 +3285,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6095,
 		.ops = &mv88e6095_ops,
 	},
 
@@ -3305,8 +3305,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6097,
 		.ops = &mv88e6097_ops,
 	},
 
@@ -3325,8 +3325,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6165,
 		.ops = &mv88e6123_ops,
 	},
 
@@ -3343,8 +3343,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.age_time_coeff = 15000,
 		.g1_irqs = 9,
 		.atu_move_port_mask = 0xf,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6185,
 		.ops = &mv88e6131_ops,
 	},
 
@@ -3362,8 +3362,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.atu_move_port_mask = 0x1f,
 		.g2_irqs = 10,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6341,
 		.ops = &mv88e6141_ops,
 	},
 
@@ -3382,8 +3382,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6165,
 		.ops = &mv88e6161_ops,
 	},
 
@@ -3402,8 +3402,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6165,
 		.ops = &mv88e6165_ops,
 	},
 
@@ -3422,8 +3422,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
 		.ops = &mv88e6171_ops,
 	},
 
@@ -3442,8 +3442,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
 		.ops = &mv88e6172_ops,
 	},
 
@@ -3462,8 +3462,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
 		.ops = &mv88e6175_ops,
 	},
 
@@ -3482,8 +3482,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
 		.ops = &mv88e6176_ops,
 	},
 
@@ -3500,8 +3500,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6185,
 		.ops = &mv88e6185_ops,
 	},
 
@@ -3520,8 +3520,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g1_irqs = 9,
 		.g2_irqs = 14,
 		.pvt = true,
+		.multi_chip = true,
 		.atu_move_port_mask = 0x1f,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
 		.ops = &mv88e6190_ops,
 	},
 
@@ -3540,8 +3540,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
 		.ops = &mv88e6190x_ops,
 	},
 
@@ -3560,8 +3560,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
 		.ops = &mv88e6191_ops,
 	},
 
@@ -3580,8 +3580,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
 		.ops = &mv88e6240_ops,
 	},
 
@@ -3600,8 +3600,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
 		.ops = &mv88e6290_ops,
 	},
 
@@ -3619,8 +3619,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6320,
 		.ops = &mv88e6320_ops,
 	},
 
@@ -3637,8 +3637,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.age_time_coeff = 15000,
 		.g1_irqs = 8,
 		.atu_move_port_mask = 0xf,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6320,
 		.ops = &mv88e6321_ops,
 	},
 
@@ -3656,8 +3656,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.atu_move_port_mask = 0x1f,
 		.g2_irqs = 10,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6341,
 		.ops = &mv88e6341_ops,
 	},
 
@@ -3676,8 +3676,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
 		.ops = &mv88e6350_ops,
 	},
 
@@ -3696,8 +3696,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
 		.ops = &mv88e6351_ops,
 	},
 
@@ -3716,8 +3716,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 10,
 		.atu_move_port_mask = 0xf,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_EDSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
 		.ops = &mv88e6352_ops,
 	},
 	[MV88E6390] = {
@@ -3735,8 +3735,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
 		.ops = &mv88e6390_ops,
 	},
 	[MV88E6390X] = {
@@ -3754,8 +3754,8 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.g2_irqs = 14,
 		.atu_move_port_mask = 0x1f,
 		.pvt = true,
+		.multi_chip = true,
 		.tag_protocol = DSA_TAG_PROTO_DSA,
-		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
 		.ops = &mv88e6390x_ops,
 	},
 };
@@ -3825,7 +3825,7 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
 {
 	if (sw_addr == 0)
 		chip->smi_ops = &mv88e6xxx_smi_single_chip_ops;
-	else if (mv88e6xxx_has(chip, MV88E6XXX_FLAGS_MULTI_CHIP))
+	else if (chip->info->multi_chip)
 		chip->smi_ops = &mv88e6xxx_smi_multi_chip_ops;
 	else
 		return -EINVAL;
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 3fbee01d2d84..9111e1316250 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -97,51 +97,6 @@ enum mv88e6xxx_family {
 	MV88E6XXX_FAMILY_6390,  /* 6190 6190X 6191 6290 6390 6390X */
 };
 
-enum mv88e6xxx_cap {
-	/* Multi-chip Addressing Mode.
-	 * Some chips respond to only 2 registers of its own SMI device address
-	 * when it is non-zero, and use indirect access to internal registers.
-	 */
-	MV88E6XXX_CAP_SMI_CMD,		/* (0x00) SMI Command */
-	MV88E6XXX_CAP_SMI_DATA,		/* (0x01) SMI Data */
-};
-
-/* Bitmask of capabilities */
-#define MV88E6XXX_FLAG_SMI_CMD		BIT_ULL(MV88E6XXX_CAP_SMI_CMD)
-#define MV88E6XXX_FLAG_SMI_DATA		BIT_ULL(MV88E6XXX_CAP_SMI_DATA)
-
-/* Multi-chip Addressing Mode */
-#define MV88E6XXX_FLAGS_MULTI_CHIP	\
-	(MV88E6XXX_FLAG_SMI_CMD |	\
-	 MV88E6XXX_FLAG_SMI_DATA)
-
-#define MV88E6XXX_FLAGS_FAMILY_6095	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6097	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6165	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6185	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6320	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6341	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6351	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6352	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
-#define MV88E6XXX_FLAGS_FAMILY_6390	\
-	(MV88E6XXX_FLAGS_MULTI_CHIP)
-
 struct mv88e6xxx_ops;
 
 struct mv88e6xxx_info {
@@ -158,8 +113,13 @@ struct mv88e6xxx_info {
 	unsigned int g1_irqs;
 	unsigned int g2_irqs;
 	bool pvt;
+
+	/* Multi-chip Addressing Mode.
+	 * Some chips respond to only 2 registers of its own SMI device address
+	 * when it is non-zero, and use indirect access to internal registers.
+	 */
+	bool multi_chip;
 	enum dsa_tag_protocol tag_protocol;
-	unsigned long long flags;
 
 	/* Mask for FromPort and ToPort value of PortVec used in ATU Move
 	 * operation. 0 means that the ATU Move operation is not supported.
@@ -410,12 +370,6 @@ struct mv88e6xxx_hw_stat {
 	int type;
 };
 
-static inline bool mv88e6xxx_has(struct mv88e6xxx_chip *chip,
-				 unsigned long flags)
-{
-	return (chip->info->flags & flags) == flags;
-}
-
 static inline bool mv88e6xxx_has_pvt(struct mv88e6xxx_chip *chip)
 {
 	return chip->info->pvt;
-- 
2.13.2

Re: [PATCH net-next 06/12] net: dsa: mv88e6xxx: add number of Global 2 IRQs

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:40PM -0400, Vivien Didelot wrote:
> Similarly to g1_irqs, add a g2_irqs member to the info structure to
> indicates the presence of the Global 2 Interrupt Source and Mask
> registers.
> 
> At the same time, provide helpers and document the registers since they
> differ a bit between 88E6352 and 88E6390 families.
> 
> This allows us to get rid of the MV88E6XXX_FLAG_G2_INT flag.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 05/12] net: dsa: mv88e6xxx: remove 88E6185 G2 interrupt

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:39PM -0400, Vivien Didelot wrote:
> The 88E6185 family has no Global 2 Interrupt Source or Mask registers.
> Remove the MV88E6XXX_FLAG_G2_INT from MV88E6XXX_FLAGS_FAMILY_6185.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 04/12] net: dsa: mv88e6xxx: remove unused capabilities

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:38PM -0400, Vivien Didelot wrote:
> Remove the forgotten capabilities and related flags from previous
> cleanups.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 03/12] net: dsa: mv88e6xxx: fix 88E6321 family comment

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:37PM -0400, Vivien Didelot wrote:
> MV88E6XXX_FAMILY_6321 is undefined, 88E6321's family is 88E6320,
> fix this.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 02/12] net: dsa: mv88e6xxx: remove LED control register

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:36PM -0400, Vivien Didelot wrote:
> We don't support LED control yet, remove its register definition.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 01/12] net: dsa: mv88e6xxx: remove unneeded dsa header

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:35PM -0400, Vivien Didelot wrote:
> phy.c does not need to include the DSA public header. Remove it.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Signed-off-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 08/12] net: dsa: mv88e6xxx: add POT flag to 88E6390

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:42PM -0400, Vivien Didelot wrote:
> The 88E6390 family clear the Priority Override Table the same way as
> 88E6352, thus add MV88E6XXX_FLAG_G2_POT to MV88E6XXX_FLAGS_FAMILY_6390.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 09/12] net: dsa: mv88e6xxx: add POT operation

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:43PM -0400, Vivien Didelot wrote:
> Add a pot_clear operation to clear the Priority Override Table and wrap
> its call into a mv88e6xxx_pot_setup helper.
> 
> This allows us to get rid of the MV88E6XXX_FLAG_G2_POT flag.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 10/12] net: dsa: mv88e6xxx: add a global2_addr info flag

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:44PM -0400, Vivien Didelot wrote:
> Similarly to global1_addr, add a global2_addr member in the info
> structure to describe the presence of the Global 2 Registers.
> 
> This allows us to get rid of the MV88E6XXX_FLAG_GLOBAL2 flag.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Andrew Lunn]

> diff --git a/drivers/net/dsa/mv88e6xxx/phy.c b/drivers/net/dsa/mv88e6xxx/phy.c
> index 436668bd50dc..317ae89cfa68 100644
> --- a/drivers/net/dsa/mv88e6xxx/phy.c
> +++ b/drivers/net/dsa/mv88e6xxx/phy.c
> @@ -246,3 +246,99 @@ int mv88e6xxx_phy_setup(struct mv88e6xxx_chip *chip)
>  {
>  	return mv88e6xxx_phy_ppu_enable(chip);
>  }
> +
> +/* Page 0, Register 16: Copper Specific Control Register 1 */
> +
> +int mv88e6352_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
> +				     struct ethtool_eee *eee)
> +{
> +	u16 val;
> +	int err;
> +
> +	err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
> +	if (err)
> +		return err;
> +
> +	val &= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK;
> +
> +	eee->eee_enabled = false;
> +	eee->tx_lpi_enabled = false;
> +
> +	switch (val) {
> +	case MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP:
> +		eee->tx_lpi_enabled = true;
> +		/* fall through... */
> +	case MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV:
> +		eee->eee_enabled = true;
> +	}
> +
> +	return 0;
> +}

Hi Vivien

I never liked this. I think it is architecturally wrong for the switch
to be poking around in the PHY. It should ask the PHY driver. This is
especially true for external PHYs which might not be a Marvell PHY.

   Andrew

Re: [PATCH net-next 12/12] net: dsa: mv88e6xxx: add a multi_chip info flag

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:03:46PM -0400, Vivien Didelot wrote:
> Instead of relying on a bitmap flag, add a new multi_chip info flag to
> describe the presence of the indirect SMI access though the two device
> registers 0x0 and 0x1.
> 
> All remaining capabilities and flags are now unused. Remove the
> mv88e6xxx_cap enum and the info flags bitmaps.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Vivien Didelot]

Hi Andrew,

Andrew Lunn <andrew@lunn.ch> writes:

> I never liked this. I think it is architecturally wrong for the switch
> to be poking around in the PHY. It should ask the PHY driver. This is
> especially true for external PHYs which might not be a Marvell PHY.

I share the same concern. However this patch is just isolating the
existing code so that we get rid of the last caps and flags and stop
writing (without reading them first) arbitrary registers.

Once this portion is moved to the PHY driver, one can remove it from
mv88e6xxx.

Thanks,

        Vivien

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[David Miller]

From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Mon, 17 Jul 2017 15:32:52 -0400

> Hi Andrew,
> 
> Andrew Lunn <andrew@lunn.ch> writes:
> 
>> I never liked this. I think it is architecturally wrong for the switch
>> to be poking around in the PHY. It should ask the PHY driver. This is
>> especially true for external PHYs which might not be a Marvell PHY.
> 
> I share the same concern. However this patch is just isolating the
> existing code so that we get rid of the last caps and flags and stop
> writing (without reading them first) arbitrary registers.
> 
> Once this portion is moved to the PHY driver, one can remove it from
> mv88e6xxx.

Seems a reasonable plan of action.

Andrew, do you agree?

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Andrew Lunn]

On Mon, Jul 17, 2017 at 01:45:49PM -0700, David Miller wrote:
> From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
> Date: Mon, 17 Jul 2017 15:32:52 -0400
> 
> > Hi Andrew,
> > 
> > Andrew Lunn <andrew@lunn.ch> writes:
> > 
> >> I never liked this. I think it is architecturally wrong for the switch
> >> to be poking around in the PHY. It should ask the PHY driver. This is
> >> especially true for external PHYs which might not be a Marvell PHY.
> > 
> > I share the same concern. However this patch is just isolating the
> > existing code so that we get rid of the last caps and flags and stop
> > writing (without reading them first) arbitrary registers.
> > 
> > Once this portion is moved to the PHY driver, one can remove it from
> > mv88e6xxx.
> 
> Seems a reasonable plan of action.
> 
> Andrew, do you agree?

Hi David

I just fear it will not get fixed, just put into a corner to
fester. Having to fix it properly before these patches are merged
provides some incentive.

	 Andrew

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[David Miller]

From: Andrew Lunn <andrew@lunn.ch>
Date: Mon, 17 Jul 2017 23:04:05 +0200

> On Mon, Jul 17, 2017 at 01:45:49PM -0700, David Miller wrote:
>> From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
>> Date: Mon, 17 Jul 2017 15:32:52 -0400
>> 
>> > Hi Andrew,
>> > 
>> > Andrew Lunn <andrew@lunn.ch> writes:
>> > 
>> >> I never liked this. I think it is architecturally wrong for the switch
>> >> to be poking around in the PHY. It should ask the PHY driver. This is
>> >> especially true for external PHYs which might not be a Marvell PHY.
>> > 
>> > I share the same concern. However this patch is just isolating the
>> > existing code so that we get rid of the last caps and flags and stop
>> > writing (without reading them first) arbitrary registers.
>> > 
>> > Once this portion is moved to the PHY driver, one can remove it from
>> > mv88e6xxx.
>> 
>> Seems a reasonable plan of action.
>> 
>> Andrew, do you agree?
> 
> Hi David
> 
> I just fear it will not get fixed, just put into a corner to
> fester. Having to fix it properly before these patches are merged
> provides some incentive.

If Vivien doesn't make good on his promises to do so, tell me and
I will revert all of these changes.

Ok?

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Florian Fainelli]

On 07/17/2017 02:10 PM, David Miller wrote:
> From: Andrew Lunn <andrew@lunn.ch>
> Date: Mon, 17 Jul 2017 23:04:05 +0200
> 
>> On Mon, Jul 17, 2017 at 01:45:49PM -0700, David Miller wrote:
>>> From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
>>> Date: Mon, 17 Jul 2017 15:32:52 -0400
>>>
>>>> Hi Andrew,
>>>>
>>>> Andrew Lunn <andrew@lunn.ch> writes:
>>>>
>>>>> I never liked this. I think it is architecturally wrong for the switch
>>>>> to be poking around in the PHY. It should ask the PHY driver. This is
>>>>> especially true for external PHYs which might not be a Marvell PHY.
>>>>
>>>> I share the same concern. However this patch is just isolating the
>>>> existing code so that we get rid of the last caps and flags and stop
>>>> writing (without reading them first) arbitrary registers.
>>>>
>>>> Once this portion is moved to the PHY driver, one can remove it from
>>>> mv88e6xxx.
>>>
>>> Seems a reasonable plan of action.
>>>
>>> Andrew, do you agree?
>>
>> Hi David
>>
>> I just fear it will not get fixed, just put into a corner to
>> fester. Having to fix it properly before these patches are merged
>> provides some incentive.
> 
> If Vivien doesn't make good on his promises to do so, tell me and
> I will revert all of these changes.
> 
> Ok?

This seems to be completely unfair to Vivien, there is nothing wrong
with his patch series per-se other than he was unfortunate enough he
highlighted something that needs fixing. This was not a serious enough
problem before and it cannot possibly be one now either with just a code
move.

On a general note, we cannot have whoever was the last one to touch a
piece of code that makes us see that this or that said piece of code is
less than ideal be selected as the random victim for doing that cleanup,
this just does not work. I know this is standard practice in Linux and
other open source software (been there before with the USB maintainers),
but this creates only one thing: making you want to runaway and scream
lalalalala.

So let's be pragmatic and maintain a public TODO list for this driver
that people can pick items to fix/cleanup/change that have been
identified as candidates for patches.
-- 
Florian

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[David Miller]

From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 18 Jul 2017 09:01:01 -0700

> On 07/17/2017 02:10 PM, David Miller wrote:
>> From: Andrew Lunn <andrew@lunn.ch>
>> Date: Mon, 17 Jul 2017 23:04:05 +0200
>> 
>>> On Mon, Jul 17, 2017 at 01:45:49PM -0700, David Miller wrote:
>>>> From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
>>>> Date: Mon, 17 Jul 2017 15:32:52 -0400
>>>>
>>>>> Hi Andrew,
>>>>>
>>>>> Andrew Lunn <andrew@lunn.ch> writes:
>>>>>
>>>>>> I never liked this. I think it is architecturally wrong for the switch
>>>>>> to be poking around in the PHY. It should ask the PHY driver. This is
>>>>>> especially true for external PHYs which might not be a Marvell PHY.
>>>>>
>>>>> I share the same concern. However this patch is just isolating the
>>>>> existing code so that we get rid of the last caps and flags and stop
>>>>> writing (without reading them first) arbitrary registers.
>>>>>
>>>>> Once this portion is moved to the PHY driver, one can remove it from
>>>>> mv88e6xxx.
>>>>
>>>> Seems a reasonable plan of action.
>>>>
>>>> Andrew, do you agree?
>>>
>>> Hi David
>>>
>>> I just fear it will not get fixed, just put into a corner to
>>> fester. Having to fix it properly before these patches are merged
>>> provides some incentive.
>> 
>> If Vivien doesn't make good on his promises to do so, tell me and
>> I will revert all of these changes.
>> 
>> Ok?
> 
> This seems to be completely unfair to Vivien, there is nothing wrong
> with his patch series per-se other than he was unfortunate enough he
> highlighted something that needs fixing. This was not a serious enough
> problem before and it cannot possibly be one now either with just a code
> move.
> 
> On a general note, we cannot have whoever was the last one to touch a
> piece of code that makes us see that this or that said piece of code is
> less than ideal be selected as the random victim for doing that cleanup,
> this just does not work. I know this is standard practice in Linux and
> other open source software (been there before with the USB maintainers),
> but this creates only one thing: making you want to runaway and scream
> lalalalala.
> 
> So let's be pragmatic and maintain a public TODO list for this driver
> that people can pick items to fix/cleanup/change that have been
> identified as candidates for patches.

However, in this particular case, this issue was brought to Vivien's
attention multiple times in the past.

And I think the direct PHY poking issue is much more important than
these seemingly endless reorganizations of the driver that Vivien is
doing.

So I personally share Andrew's serious frustration that we are doing
constant reorgs but not addressing directly the specific issues that
one has been made clearly aware of.

Thanks.

Re: [PATCH net-next 00/12] net: dsa: mv88e6xxx: cleanup capabilities

[David Miller]

From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Mon, 17 Jul 2017 13:03:34 -0400

> This patch series removes the remaining capabilities as well as the
> flags bitmap in the info structures. Most of them are turned into ops,
> or new info members.
> 
> There is no mv88e6xxx_cap enum or bitmap flags anymore, only
> mv88e6xxx_info and mv88e6xxx_ops structures.
> 
> While reviewing and documenting the related G2 registers, fix a few
> inconsistencies: 88E6185 has no interrupt in G2 and 88E6390 has a POT.
> 
> Except these two adjustments, there is no functional changes.

Series applied, thanks Vivien.

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Vivien Didelot]

Hi David,

David Miller <davem@davemloft.net> writes:

> However, in this particular case, this issue was brought to Vivien's
> attention multiple times in the past.
>
> And I think the direct PHY poking issue is much more important than
> these seemingly endless reorganizations of the driver that Vivien is
> doing.
>
> So I personally share Andrew's serious frustration that we are doing
> constant reorgs but not addressing directly the specific issues that
> one has been made clearly aware of.

We support 26 Marvell Ethernet switch chips, so I am often comparing the
documentation of many of them to make sure the driver stops writing
arbitrary registers, ending up with many inconsistencies (like Remote
Management being currently enabled on all chips with an RMU, fix coming)
mainly due to poor documentation and device setup.

I know this looks boring, I do not particularly enjoy it myself, but I
think this is also important. I don't mind fixing the poking function as
well in the near future.


Thanks,

        Vivien

Re: [PATCH net-next 11/12] net: dsa: mv88e6xxx: add Energy Detect ops

[Andrew Lunn]

> I know this looks boring, I do not particularly enjoy it myself, but I
> think this is also important. I don't mind fixing the poking function as
> well in the near future.

It would be great if you do. It could be as simple as using
phy_ethtool_get_eee() and phy_ethtool_set_eee().

      Andrew

[PATCH net-next 08/12] net: dsa: mv88e6xxx: add POT flag to 88E6390

[Vivien Didelot]

The 88E6390 family clear the Priority Override Table the same way as
88E6352, thus add MV88E6XXX_FLAG_G2_POT to MV88E6XXX_FLAGS_FAMILY_6390.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 48233971759e..52b52423df1f 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -174,6 +174,7 @@ enum mv88e6xxx_cap {
 #define MV88E6XXX_FLAGS_FAMILY_6390	\
 	(MV88E6XXX_FLAG_EEE |		\
 	 MV88E6XXX_FLAG_GLOBAL2 |	\
+	 MV88E6XXX_FLAG_G2_POT |	\
 	 MV88E6XXX_FLAGS_MULTI_CHIP)
 
 struct mv88e6xxx_ops;
-- 
2.13.2