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* [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
@ 2021-10-20  9:32 Volodymyr Mytnyk
  2021-10-20 12:47 ` Andrew Lunn
                   ` (2 more replies)
  0 siblings, 3 replies; 9+ messages in thread
From: Volodymyr Mytnyk @ 2021-10-20  9:32 UTC (permalink / raw)
  To: kuba, andrew
  Cc: mickeyr, serhiy.pshyk, taras.chornyi, Volodymyr Mytnyk,
	Vadym Kochan, Yevhen Orlov, Taras Chornyi, David S. Miller,
	netdev, linux-kernel

From: Volodymyr Mytnyk <vmytnyk@marvell.com>

Add firmware (FW) version 4.0 support for Marvell Prestera
driver.

Major changes have been made to new v4.0 FW ABI to add support
of new features, introduce the stability of the FW ABI and ensure
better forward compatibility for the future driver vesrions.

Current v4.0 FW feature set support does not expect any changes
to ABI, as it was defined and tested through long period of time.
The ABI may be extended in case of new features, but it will not
break the backward compatibility.

ABI major changes done in v4.0:
- L1 ABI, where MAC and PHY API configuration are split.
- ACL has been split to low-level TCAM and Counters ABI
  to provide more HW ACL capabilities for future driver
  versions.

To support backward support, the addition compatibility layer is
required in the driver which will have two different codebase under
"if FW-VER elif FW-VER else" conditions that will be removed
in the future anyway, So, the idea was to break backward support
and focus on more stable FW instead of supporting old version
with very minimal and limited set of features/capabilities.

Co-developed-by: Vadym Kochan <vkochan@marvell.com>
Signed-off-by: Vadym Kochan <vkochan@marvell.com>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Signed-off-by: Taras Chornyi <tchornyi@marvell.com>
Signed-off-by: Volodymyr Mytnyk <vmytnyk@marvell.com>
---

Changes in V2:

 * Fix sparse errors:
   warning: no previous prototype for function 'prestera_hw_port_state_set' [-Wmissing-prototypes]
   int prestera_hw_port_state_set(const struct prestera_port *port,
       ^

Changes in V3:

 * Clarify commit message description according
   to discussion with Andrew.

 drivers/net/ethernet/marvell/prestera/prestera.h   |  70 ++-
 .../ethernet/marvell/prestera/prestera_ethtool.c   | 219 ++++++----
 .../ethernet/marvell/prestera/prestera_ethtool.h   |   6 +
 .../net/ethernet/marvell/prestera/prestera_hw.c    | 483 +++++++++------------
 .../net/ethernet/marvell/prestera/prestera_hw.h    |  47 +-
 .../net/ethernet/marvell/prestera/prestera_main.c  | 144 ++++--
 .../net/ethernet/marvell/prestera/prestera_pci.c   | 114 +++--
 .../net/ethernet/marvell/prestera/prestera_rxtx.c  |   7 -
 8 files changed, 628 insertions(+), 462 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
index f18fe664b373..bc187ccdd8d3 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -53,6 +53,8 @@ struct prestera_port_stats {
 	u64 good_octets_sent;
 };
 
+#define PRESTERA_AP_PORT_MAX   (10)
+
 struct prestera_port_caps {
 	u64 supp_link_modes;
 	u8 supp_fec;
@@ -69,6 +71,40 @@ struct prestera_lag {
 
 struct prestera_flow_block;
 
+struct prestera_port_mac_state {
+	bool oper;
+	u32 mode;
+	u32 speed;
+	u8 duplex;
+	u8 fc;
+	u8 fec;
+};
+
+struct prestera_port_phy_state {
+	u64 lmode_bmap;
+	struct {
+		bool pause;
+		bool asym_pause;
+	} remote_fc;
+	u8 mdix;
+};
+
+struct prestera_port_mac_config {
+	bool admin;
+	u32 mode;
+	u8 inband;
+	u32 speed;
+	u8 duplex;
+	u8 fec;
+};
+
+/* TODO: add another parameters here: modes, etc... */
+struct prestera_port_phy_config {
+	bool admin;
+	u32 mode;
+	u8 mdix;
+};
+
 struct prestera_port {
 	struct net_device *dev;
 	struct prestera_switch *sw;
@@ -91,6 +127,10 @@ struct prestera_port {
 		struct prestera_port_stats stats;
 		struct delayed_work caching_dw;
 	} cached_hw_stats;
+	struct prestera_port_mac_config cfg_mac;
+	struct prestera_port_phy_config cfg_phy;
+	struct prestera_port_mac_state state_mac;
+	struct prestera_port_phy_state state_phy;
 };
 
 struct prestera_device {
@@ -107,7 +147,7 @@ struct prestera_device {
 	int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size);
 
 	/* called by higher layer to send request to the firmware */
-	int (*send_req)(struct prestera_device *dev, void *in_msg,
+	int (*send_req)(struct prestera_device *dev, int qid, void *in_msg,
 			size_t in_size, void *out_msg, size_t out_size,
 			unsigned int wait);
 };
@@ -129,13 +169,28 @@ enum prestera_rxtx_event_id {
 
 enum prestera_port_event_id {
 	PRESTERA_PORT_EVENT_UNSPEC,
-	PRESTERA_PORT_EVENT_STATE_CHANGED,
+	PRESTERA_PORT_EVENT_MAC_STATE_CHANGED,
 };
 
 struct prestera_port_event {
 	u32 port_id;
 	union {
-		u32 oper_state;
+		struct {
+			u8 oper;
+			u32 mode;
+			u32 speed;
+			u8 duplex;
+			u8 fc;
+			u8 fec;
+		} mac;
+		struct {
+			u8 mdix;
+			u64 lmode_bmap;
+			struct {
+				bool pause;
+				bool asym_pause;
+			} remote_fc;
+		} phy;
 	} data;
 };
 
@@ -223,11 +278,16 @@ void prestera_device_unregister(struct prestera_device *dev);
 struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
 						 u32 dev_id, u32 hw_id);
 
-int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
-			      u64 adver_link_modes, u8 adver_fec);
+int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes);
 
 struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id);
 
+int prestera_port_cfg_mac_read(struct prestera_port *port,
+			       struct prestera_port_mac_config *cfg);
+
+int prestera_port_cfg_mac_write(struct prestera_port *port,
+				struct prestera_port_mac_config *cfg);
+
 struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev);
 
 int prestera_port_pvid_set(struct prestera_port *port, u16 vid);
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
index 93a5e2baf808..6011454dba71 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
@@ -323,7 +323,6 @@ static int prestera_port_type_set(const struct ethtool_link_ksettings *ecmd,
 {
 	u32 new_mode = PRESTERA_LINK_MODE_MAX;
 	u32 type, mode;
-	int err;
 
 	for (type = 0; type < PRESTERA_PORT_TYPE_MAX; type++) {
 		if (port_types[type].eth_type == ecmd->base.port &&
@@ -348,13 +347,8 @@ static int prestera_port_type_set(const struct ethtool_link_ksettings *ecmd,
 		}
 	}
 
-	if (new_mode < PRESTERA_LINK_MODE_MAX)
-		err = prestera_hw_port_link_mode_set(port, new_mode);
-	else
-		err = -EINVAL;
-
-	if (err)
-		return err;
+	if (new_mode >= PRESTERA_LINK_MODE_MAX)
+		return -EINVAL;
 
 	port->caps.type = type;
 	port->autoneg = false;
@@ -434,27 +428,33 @@ static void prestera_port_supp_types_get(struct ethtool_link_ksettings *ecmd,
 static void prestera_port_remote_cap_get(struct ethtool_link_ksettings *ecmd,
 					 struct prestera_port *port)
 {
+	struct prestera_port_phy_state *state = &port->state_phy;
 	bool asym_pause;
 	bool pause;
 	u64 bitmap;
 	int err;
 
-	err = prestera_hw_port_remote_cap_get(port, &bitmap);
-	if (!err) {
-		prestera_modes_to_eth(ecmd->link_modes.lp_advertising,
-				      bitmap, 0, PRESTERA_PORT_TYPE_NONE);
+	err = prestera_hw_port_phy_mode_get(port, NULL, &state->lmode_bmap,
+					    &state->remote_fc.pause,
+					    &state->remote_fc.asym_pause);
+	if (err)
+		netdev_warn(port->dev, "Remote link caps get failed %d",
+			    port->caps.transceiver);
 
-		if (!bitmap_empty(ecmd->link_modes.lp_advertising,
-				  __ETHTOOL_LINK_MODE_MASK_NBITS)) {
-			ethtool_link_ksettings_add_link_mode(ecmd,
-							     lp_advertising,
-							     Autoneg);
-		}
+	bitmap = state->lmode_bmap;
+
+	prestera_modes_to_eth(ecmd->link_modes.lp_advertising,
+			      bitmap, 0, PRESTERA_PORT_TYPE_NONE);
+
+	if (!bitmap_empty(ecmd->link_modes.lp_advertising,
+			  __ETHTOOL_LINK_MODE_MASK_NBITS)) {
+		ethtool_link_ksettings_add_link_mode(ecmd,
+						     lp_advertising,
+						     Autoneg);
 	}
 
-	err = prestera_hw_port_remote_fc_get(port, &pause, &asym_pause);
-	if (err)
-		return;
+	pause = state->remote_fc.pause;
+	asym_pause = state->remote_fc.asym_pause;
 
 	if (pause)
 		ethtool_link_ksettings_add_link_mode(ecmd,
@@ -466,30 +466,46 @@ static void prestera_port_remote_cap_get(struct ethtool_link_ksettings *ecmd,
 						     Asym_Pause);
 }
 
-static void prestera_port_speed_get(struct ethtool_link_ksettings *ecmd,
-				    struct prestera_port *port)
+static void prestera_port_link_mode_get(struct ethtool_link_ksettings *ecmd,
+					struct prestera_port *port)
 {
+	struct prestera_port_mac_state *state = &port->state_mac;
 	u32 speed;
+	u8 duplex;
 	int err;
 
-	err = prestera_hw_port_speed_get(port, &speed);
-	ecmd->base.speed = err ? SPEED_UNKNOWN : speed;
+	if (!port->state_mac.oper)
+		return;
+
+	if (state->speed == SPEED_UNKNOWN || state->duplex == DUPLEX_UNKNOWN) {
+		err = prestera_hw_port_mac_mode_get(port, NULL, &speed,
+						    &duplex, NULL);
+		if (err) {
+			state->speed = SPEED_UNKNOWN;
+			state->duplex = DUPLEX_UNKNOWN;
+		} else {
+			state->speed = speed;
+			state->duplex = duplex == PRESTERA_PORT_DUPLEX_FULL ?
+					  DUPLEX_FULL : DUPLEX_HALF;
+		}
+	}
+
+	ecmd->base.speed = port->state_mac.speed;
+	ecmd->base.duplex = port->state_mac.duplex;
 }
 
-static void prestera_port_duplex_get(struct ethtool_link_ksettings *ecmd,
-				     struct prestera_port *port)
+static void prestera_port_mdix_get(struct ethtool_link_ksettings *ecmd,
+				   struct prestera_port *port)
 {
-	u8 duplex;
-	int err;
+	struct prestera_port_phy_state *state = &port->state_phy;
 
-	err = prestera_hw_port_duplex_get(port, &duplex);
-	if (err) {
-		ecmd->base.duplex = DUPLEX_UNKNOWN;
-		return;
+	if (prestera_hw_port_phy_mode_get(port, &state->mdix, NULL, NULL, NULL)) {
+		netdev_warn(port->dev, "MDIX params get failed");
+		state->mdix = ETH_TP_MDI_INVALID;
 	}
 
-	ecmd->base.duplex = duplex == PRESTERA_PORT_DUPLEX_FULL ?
-			    DUPLEX_FULL : DUPLEX_HALF;
+	ecmd->base.eth_tp_mdix = port->state_phy.mdix;
+	ecmd->base.eth_tp_mdix_ctrl = port->cfg_phy.mdix;
 }
 
 static int
@@ -501,6 +517,8 @@ prestera_ethtool_get_link_ksettings(struct net_device *dev,
 	ethtool_link_ksettings_zero_link_mode(ecmd, supported);
 	ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
 	ethtool_link_ksettings_zero_link_mode(ecmd, lp_advertising);
+	ecmd->base.speed = SPEED_UNKNOWN;
+	ecmd->base.duplex = DUPLEX_UNKNOWN;
 
 	ecmd->base.autoneg = port->autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 
@@ -521,13 +539,8 @@ prestera_ethtool_get_link_ksettings(struct net_device *dev,
 
 	prestera_port_supp_types_get(ecmd, port);
 
-	if (netif_carrier_ok(dev)) {
-		prestera_port_speed_get(ecmd, port);
-		prestera_port_duplex_get(ecmd, port);
-	} else {
-		ecmd->base.speed = SPEED_UNKNOWN;
-		ecmd->base.duplex = DUPLEX_UNKNOWN;
-	}
+	if (netif_carrier_ok(dev))
+		prestera_port_link_mode_get(ecmd, port);
 
 	ecmd->base.port = prestera_port_type_get(port);
 
@@ -545,8 +558,7 @@ prestera_ethtool_get_link_ksettings(struct net_device *dev,
 
 	if (port->caps.type == PRESTERA_PORT_TYPE_TP &&
 	    port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER)
-		prestera_hw_port_mdix_get(port, &ecmd->base.eth_tp_mdix,
-					  &ecmd->base.eth_tp_mdix_ctrl);
+		prestera_port_mdix_get(ecmd, port);
 
 	return 0;
 }
@@ -555,12 +567,17 @@ static int prestera_port_mdix_set(const struct ethtool_link_ksettings *ecmd,
 				  struct prestera_port *port)
 {
 	if (ecmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_INVALID &&
-	    port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER &&
-	    port->caps.type == PRESTERA_PORT_TYPE_TP)
-		return prestera_hw_port_mdix_set(port,
-						 ecmd->base.eth_tp_mdix_ctrl);
-
+	    port->caps.transceiver ==  PRESTERA_PORT_TCVR_COPPER &&
+	    port->caps.type == PRESTERA_PORT_TYPE_TP) {
+		port->cfg_phy.mdix = ecmd->base.eth_tp_mdix_ctrl;
+		return prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin,
+						     port->autoneg,
+						     port->cfg_phy.mode,
+						     port->adver_link_modes,
+						     port->cfg_phy.mdix);
+	}
 	return 0;
+
 }
 
 static int prestera_port_link_mode_set(struct prestera_port *port,
@@ -568,12 +585,15 @@ static int prestera_port_link_mode_set(struct prestera_port *port,
 {
 	u32 new_mode = PRESTERA_LINK_MODE_MAX;
 	u32 mode;
+	int err;
 
 	for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
-		if (speed != port_link_modes[mode].speed)
+		if (speed != SPEED_UNKNOWN &&
+		    speed != port_link_modes[mode].speed)
 			continue;
 
-		if (duplex != port_link_modes[mode].duplex)
+		if (duplex != DUPLEX_UNKNOWN &&
+		    duplex != port_link_modes[mode].duplex)
 			continue;
 
 		if (!(port_link_modes[mode].pr_mask &
@@ -590,36 +610,31 @@ static int prestera_port_link_mode_set(struct prestera_port *port,
 	if (new_mode == PRESTERA_LINK_MODE_MAX)
 		return -EOPNOTSUPP;
 
-	return prestera_hw_port_link_mode_set(port, new_mode);
+	err = prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin,
+					    false, new_mode, 0,
+					    port->cfg_phy.mdix);
+	if (err)
+		return err;
+
+	port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF);
+	port->adver_link_modes = 0;
+	port->cfg_phy.mode = new_mode;
+	port->autoneg = false;
+
+	return 0;
 }
 
 static int
 prestera_port_speed_duplex_set(const struct ethtool_link_ksettings *ecmd,
 			       struct prestera_port *port)
 {
-	u32 curr_mode;
-	u8 duplex;
-	u32 speed;
-	int err;
-
-	err = prestera_hw_port_link_mode_get(port, &curr_mode);
-	if (err)
-		return err;
-	if (curr_mode >= PRESTERA_LINK_MODE_MAX)
-		return -EINVAL;
+	u8 duplex = DUPLEX_UNKNOWN;
 
 	if (ecmd->base.duplex != DUPLEX_UNKNOWN)
 		duplex = ecmd->base.duplex == DUPLEX_FULL ?
 			 PRESTERA_PORT_DUPLEX_FULL : PRESTERA_PORT_DUPLEX_HALF;
-	else
-		duplex = port_link_modes[curr_mode].duplex;
 
-	if (ecmd->base.speed != SPEED_UNKNOWN)
-		speed = ecmd->base.speed;
-	else
-		speed = port_link_modes[curr_mode].speed;
-
-	return prestera_port_link_mode_set(port, speed, duplex,
+	return prestera_port_link_mode_set(port, ecmd->base.speed, duplex,
 					   port->caps.type);
 }
 
@@ -645,19 +660,12 @@ prestera_ethtool_set_link_ksettings(struct net_device *dev,
 	prestera_modes_from_eth(ecmd->link_modes.advertising, &adver_modes,
 				&adver_fec, port->caps.type);
 
-	err = prestera_port_autoneg_set(port,
-					ecmd->base.autoneg == AUTONEG_ENABLE,
-					adver_modes, adver_fec);
-	if (err)
-		return err;
-
-	if (ecmd->base.autoneg == AUTONEG_DISABLE) {
+	if (ecmd->base.autoneg == AUTONEG_ENABLE)
+		err = prestera_port_autoneg_set(port, adver_modes);
+	else
 		err = prestera_port_speed_duplex_set(ecmd, port);
-		if (err)
-			return err;
-	}
 
-	return 0;
+	return err;
 }
 
 static int prestera_ethtool_get_fecparam(struct net_device *dev,
@@ -668,7 +676,7 @@ static int prestera_ethtool_get_fecparam(struct net_device *dev,
 	u32 mode;
 	int err;
 
-	err = prestera_hw_port_fec_get(port, &active);
+	err = prestera_hw_port_mac_mode_get(port, NULL, NULL, NULL, &active);
 	if (err)
 		return err;
 
@@ -693,18 +701,19 @@ static int prestera_ethtool_set_fecparam(struct net_device *dev,
 					 struct ethtool_fecparam *fecparam)
 {
 	struct prestera_port *port = netdev_priv(dev);
-	u8 fec, active;
+	struct prestera_port_mac_config cfg_mac;
 	u32 mode;
-	int err;
+	u8 fec;
 
 	if (port->autoneg) {
 		netdev_err(dev, "FEC set is not allowed while autoneg is on\n");
 		return -EINVAL;
 	}
 
-	err = prestera_hw_port_fec_get(port, &active);
-	if (err)
-		return err;
+	if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) {
+		netdev_err(dev, "FEC set is not allowed on non-SFP ports\n");
+		return -EINVAL;
+	}
 
 	fec = PRESTERA_PORT_FEC_MAX;
 	for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) {
@@ -715,13 +724,19 @@ static int prestera_ethtool_set_fecparam(struct net_device *dev,
 		}
 	}
 
-	if (fec == active)
+	prestera_port_cfg_mac_read(port, &cfg_mac);
+
+	if (fec == cfg_mac.fec)
 		return 0;
 
-	if (fec == PRESTERA_PORT_FEC_MAX)
-		return -EOPNOTSUPP;
+	if (fec == PRESTERA_PORT_FEC_MAX) {
+		netdev_err(dev, "Unsupported FEC requested");
+		return -EINVAL;
+	}
+
+	cfg_mac.fec = fec;
 
-	return prestera_hw_port_fec_set(port, fec);
+	return prestera_port_cfg_mac_write(port, &cfg_mac);
 }
 
 static int prestera_ethtool_get_sset_count(struct net_device *dev, int sset)
@@ -766,6 +781,28 @@ static int prestera_ethtool_nway_reset(struct net_device *dev)
 	return -EINVAL;
 }
 
+void prestera_ethtool_port_state_changed(struct prestera_port *port,
+					 struct prestera_port_event *evt)
+{
+	struct prestera_port_mac_state *smac = &port->state_mac;
+
+	smac->oper = evt->data.mac.oper;
+
+	if (smac->oper) {
+		smac->mode = evt->data.mac.mode;
+		smac->speed = evt->data.mac.speed;
+		smac->duplex = evt->data.mac.duplex;
+		smac->fc = evt->data.mac.fc;
+		smac->fec = evt->data.mac.fec;
+	} else {
+		smac->mode = PRESTERA_MAC_MODE_MAX;
+		smac->speed = SPEED_UNKNOWN;
+		smac->duplex = DUPLEX_UNKNOWN;
+		smac->fc = 0;
+		smac->fec = 0;
+	}
+}
+
 const struct ethtool_ops prestera_ethtool_ops = {
 	.get_drvinfo = prestera_ethtool_get_drvinfo,
 	.get_link_ksettings = prestera_ethtool_get_link_ksettings,
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h
index 523ef1f592ce..9eb18e99dea6 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h
@@ -6,6 +6,12 @@
 
 #include <linux/ethtool.h>
 
+struct prestera_port_event;
+struct prestera_port;
+
 extern const struct ethtool_ops prestera_ethtool_ops;
 
+void prestera_ethtool_port_state_changed(struct prestera_port *port,
+					 struct prestera_port_event *evt);
+
 #endif /* _PRESTERA_ETHTOOL_H_ */
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_hw.c
index c1297859e471..a7330097c18d 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_hw.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.c
@@ -47,7 +47,6 @@ enum prestera_cmd_type_t {
 	PRESTERA_CMD_TYPE_ACL_PORT_UNBIND = 0x531,
 
 	PRESTERA_CMD_TYPE_RXTX_INIT = 0x800,
-	PRESTERA_CMD_TYPE_RXTX_PORT_INIT = 0x801,
 
 	PRESTERA_CMD_TYPE_LAG_MEMBER_ADD = 0x900,
 	PRESTERA_CMD_TYPE_LAG_MEMBER_DELETE = 0x901,
@@ -76,16 +75,12 @@ enum {
 	PRESTERA_CMD_PORT_ATTR_LEARNING = 7,
 	PRESTERA_CMD_PORT_ATTR_FLOOD = 8,
 	PRESTERA_CMD_PORT_ATTR_CAPABILITY = 9,
-	PRESTERA_CMD_PORT_ATTR_REMOTE_CAPABILITY = 10,
-	PRESTERA_CMD_PORT_ATTR_REMOTE_FC = 11,
-	PRESTERA_CMD_PORT_ATTR_LINK_MODE = 12,
+	PRESTERA_CMD_PORT_ATTR_PHY_MODE = 12,
 	PRESTERA_CMD_PORT_ATTR_TYPE = 13,
-	PRESTERA_CMD_PORT_ATTR_FEC = 14,
-	PRESTERA_CMD_PORT_ATTR_AUTONEG = 15,
-	PRESTERA_CMD_PORT_ATTR_DUPLEX = 16,
 	PRESTERA_CMD_PORT_ATTR_STATS = 17,
-	PRESTERA_CMD_PORT_ATTR_MDIX = 18,
-	PRESTERA_CMD_PORT_ATTR_AUTONEG_RESTART = 19,
+	PRESTERA_CMD_PORT_ATTR_MAC_AUTONEG_RESTART = 18,
+	PRESTERA_CMD_PORT_ATTR_PHY_AUTONEG_RESTART = 19,
+	PRESTERA_CMD_PORT_ATTR_MAC_MODE = 22,
 };
 
 enum {
@@ -203,26 +198,35 @@ struct prestera_msg_switch_init_resp {
 	u8  switch_id;
 	u8  lag_max;
 	u8  lag_member_max;
-};
+	u32 size_tbl_router_nexthop;
+} __packed __aligned(4);
 
-struct prestera_msg_port_autoneg_param {
-	u64 link_mode;
-	u8  enable;
-	u8  fec;
-};
+struct prestera_msg_event_port_param {
+	union {
+		struct {
+			u8 oper;
+			u32 mode;
+			u32 speed;
+			u8 duplex;
+			u8 fc;
+			u8 fec;
+		} mac;
+		struct {
+			u8 mdix;
+			u64 lmode_bmap;
+			u8 fc;
+		} phy;
+	};
+} __packed __aligned(4);
 
 struct prestera_msg_port_cap_param {
 	u64 link_mode;
 	u8  type;
 	u8  fec;
+	u8  fc;
 	u8  transceiver;
 };
 
-struct prestera_msg_port_mdix_param {
-	u8 status;
-	u8 admin_mode;
-};
-
 struct prestera_msg_port_flood_param {
 	u8 type;
 	u8 enable;
@@ -242,10 +246,44 @@ union prestera_msg_port_param {
 	u8  duplex;
 	u8  fec;
 	u8  fc;
-	struct prestera_msg_port_mdix_param mdix;
-	struct prestera_msg_port_autoneg_param autoneg;
+
+	union {
+		struct {
+			/* TODO: merge it with "mode" */
+			u8 admin:1;
+			u8  fc;
+			u8 ap_enable;
+			union {
+				struct {
+					u32 mode;
+					u8  inband:1;
+					u32 speed;
+					u8  duplex;
+					u8  fec;
+					u8  fec_supp;
+				} reg_mode;
+				struct {
+					u32 mode;
+					u32 speed;
+					u8  fec;
+					u8  fec_supp;
+				} ap_modes[PRESTERA_AP_PORT_MAX];
+			};
+		} mac;
+		struct {
+			/* TODO: merge it with "mode" */
+			u8 admin:1;
+			u8 adv_enable;
+			u64 modes;
+			/* TODO: merge it with modes */
+			u32 mode;
+			u8 mdix;
+		} phy;
+	} link;
+
 	struct prestera_msg_port_cap_param cap;
 	struct prestera_msg_port_flood_param flood_ext;
+	struct prestera_msg_event_port_param link_evt;
 };
 
 struct prestera_msg_port_attr_req {
@@ -254,12 +292,14 @@ struct prestera_msg_port_attr_req {
 	u32 port;
 	u32 dev;
 	union prestera_msg_port_param param;
-};
+} __packed __aligned(4);
+
 
 struct prestera_msg_port_attr_resp {
 	struct prestera_msg_ret ret;
 	union prestera_msg_port_param param;
-};
+} __packed __aligned(4);
+
 
 struct prestera_msg_port_stats_resp {
 	struct prestera_msg_ret ret;
@@ -412,12 +452,6 @@ struct prestera_msg_rxtx_resp {
 	u32 map_addr;
 };
 
-struct prestera_msg_rxtx_port_req {
-	struct prestera_msg_cmd cmd;
-	u32 port;
-	u32 dev;
-};
-
 struct prestera_msg_lag_req {
 	struct prestera_msg_cmd cmd;
 	u32 port;
@@ -441,14 +475,10 @@ struct prestera_msg_event {
 	u16 id;
 };
 
-union prestera_msg_event_port_param {
-	u32 oper_state;
-};
-
 struct prestera_msg_event_port {
 	struct prestera_msg_event id;
 	u32 port_id;
-	union prestera_msg_event_port_param param;
+	struct prestera_msg_event_port_param param;
 };
 
 union prestera_msg_event_fdb_param {
@@ -466,6 +496,9 @@ struct prestera_msg_event_fdb {
 	union prestera_msg_event_fdb_param param;
 };
 
+static u8 prestera_hw_mdix_to_eth(u8 mode);
+static void prestera_hw_remote_fc_to_eth(u8 fc, bool *pause, bool *asym_pause);
+
 static int __prestera_cmd_ret(struct prestera_switch *sw,
 			      enum prestera_cmd_type_t type,
 			      struct prestera_msg_cmd *cmd, size_t clen,
@@ -477,7 +510,7 @@ static int __prestera_cmd_ret(struct prestera_switch *sw,
 
 	cmd->type = type;
 
-	err = dev->send_req(dev, cmd, clen, ret, rlen, waitms);
+	err = dev->send_req(dev, 0, cmd, clen, ret, rlen, waitms);
 	if (err)
 		return err;
 
@@ -517,14 +550,23 @@ static int prestera_cmd(struct prestera_switch *sw,
 
 static int prestera_fw_parse_port_evt(void *msg, struct prestera_event *evt)
 {
-	struct prestera_msg_event_port *hw_evt = msg;
+	struct prestera_msg_event_port *hw_evt;
 
-	if (evt->id != PRESTERA_PORT_EVENT_STATE_CHANGED)
-		return -EINVAL;
+	hw_evt = (struct prestera_msg_event_port *)msg;
 
-	evt->port_evt.data.oper_state = hw_evt->param.oper_state;
 	evt->port_evt.port_id = hw_evt->port_id;
 
+	if (evt->id == PRESTERA_PORT_EVENT_MAC_STATE_CHANGED) {
+		evt->port_evt.data.mac.oper = hw_evt->param.mac.oper;
+		evt->port_evt.data.mac.mode = hw_evt->param.mac.mode;
+		evt->port_evt.data.mac.speed = hw_evt->param.mac.speed;
+		evt->port_evt.data.mac.duplex = hw_evt->param.mac.duplex;
+		evt->port_evt.data.mac.fc = hw_evt->param.mac.fc;
+		evt->port_evt.data.mac.fec = hw_evt->param.mac.fec;
+	} else {
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
@@ -635,6 +677,34 @@ static void prestera_pkt_recv(struct prestera_device *dev)
 	eh.func(sw, &ev, eh.arg);
 }
 
+static u8 prestera_hw_mdix_to_eth(u8 mode)
+{
+	switch (mode) {
+	case PRESTERA_PORT_TP_MDI:
+		return ETH_TP_MDI;
+	case PRESTERA_PORT_TP_MDIX:
+		return ETH_TP_MDI_X;
+	case PRESTERA_PORT_TP_AUTO:
+		return ETH_TP_MDI_AUTO;
+	default:
+		return ETH_TP_MDI_INVALID;
+	}
+}
+
+static u8 prestera_hw_mdix_from_eth(u8 mode)
+{
+	switch (mode) {
+	case ETH_TP_MDI:
+		return PRESTERA_PORT_TP_MDI;
+	case ETH_TP_MDI_X:
+		return PRESTERA_PORT_TP_MDIX;
+	case ETH_TP_MDI_AUTO:
+		return PRESTERA_PORT_TP_AUTO;
+	default:
+		return PRESTERA_PORT_TP_NA;
+	}
+}
+
 int prestera_hw_port_info_get(const struct prestera_port *port,
 			      u32 *dev_id, u32 *hw_id, u16 *fp_id)
 {
@@ -713,15 +783,56 @@ int prestera_hw_switch_ageing_set(struct prestera_switch *sw, u32 ageing_ms)
 			    &req.cmd, sizeof(req));
 }
 
-int prestera_hw_port_state_set(const struct prestera_port *port,
-			       bool admin_state)
+int prestera_hw_port_mac_mode_get(const struct prestera_port *port,
+				  u32 *mode, u32 *speed, u8 *duplex, u8 *fec)
 {
+	struct prestera_msg_port_attr_resp resp;
 	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_ADMIN_STATE,
+		.attr = PRESTERA_CMD_PORT_ATTR_MAC_MODE,
+		.port = port->hw_id,
+		.dev = port->dev_id
+	};
+	int err;
+
+	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+	if (err)
+		return err;
+
+	if (mode)
+		*mode = resp.param.link_evt.mac.mode;
+
+	if (speed)
+		*speed = resp.param.link_evt.mac.speed;
+
+	if (duplex)
+		*duplex = resp.param.link_evt.mac.duplex;
+
+	if (fec)
+		*fec = resp.param.link_evt.mac.fec;
+
+	return err;
+}
+
+int prestera_hw_port_mac_mode_set(const struct prestera_port *port,
+				  bool admin, u32 mode, u8 inband,
+				  u32 speed, u8 duplex, u8 fec)
+{
+	struct prestera_msg_port_attr_req req = {
+		.attr = PRESTERA_CMD_PORT_ATTR_MAC_MODE,
 		.port = port->hw_id,
 		.dev = port->dev_id,
 		.param = {
-			.admin_state = admin_state,
+			.link = {
+				.mac = {
+					.admin = admin,
+					.reg_mode.mode = mode,
+					.reg_mode.inband = inband,
+					.reg_mode.speed = speed,
+					.reg_mode.duplex = duplex,
+					.reg_mode.fec = fec
+				}
+			}
 		}
 	};
 
@@ -729,6 +840,62 @@ int prestera_hw_port_state_set(const struct prestera_port *port,
 			    &req.cmd, sizeof(req));
 }
 
+int prestera_hw_port_phy_mode_get(const struct prestera_port *port,
+				  u8 *mdix, u64 *lmode_bmap,
+				  bool *fc_pause, bool *fc_asym)
+{
+	struct prestera_msg_port_attr_resp resp;
+	struct prestera_msg_port_attr_req req = {
+		.attr = PRESTERA_CMD_PORT_ATTR_PHY_MODE,
+		.port = port->hw_id,
+		.dev = port->dev_id
+	};
+	int err;
+
+	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+	if (err)
+		return err;
+
+	if (mdix)
+		*mdix = prestera_hw_mdix_to_eth(resp.param.link_evt.phy.mdix);
+
+	if (lmode_bmap)
+		*lmode_bmap = resp.param.link_evt.phy.lmode_bmap;
+
+	if (fc_pause && fc_asym)
+		prestera_hw_remote_fc_to_eth(resp.param.link_evt.phy.fc,
+					     fc_pause, fc_asym);
+
+	return err;
+}
+
+int prestera_hw_port_phy_mode_set(const struct prestera_port *port,
+				  bool admin, bool adv, u32 mode, u64 modes,
+				  u8 mdix)
+{
+	struct prestera_msg_port_attr_req req = {
+		.attr = PRESTERA_CMD_PORT_ATTR_PHY_MODE,
+		.port = port->hw_id,
+		.dev = port->dev_id,
+		.param = {
+			.link = {
+				.phy = {
+					.admin = admin,
+					.adv_enable = adv ? 1 : 0,
+					.mode = mode,
+					.modes = modes,
+				}
+			}
+		}
+	};
+
+	req.param.link.phy.mdix = prestera_hw_mdix_from_eth(mdix);
+
+	return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
+			    &req.cmd, sizeof(req));
+}
+
 int prestera_hw_port_mtu_set(const struct prestera_port *port, u32 mtu)
 {
 	struct prestera_msg_port_attr_req req = {
@@ -798,44 +965,9 @@ int prestera_hw_port_cap_get(const struct prestera_port *port,
 	return err;
 }
 
-int prestera_hw_port_remote_cap_get(const struct prestera_port *port,
-				    u64 *link_mode_bitmap)
+static void prestera_hw_remote_fc_to_eth(u8 fc, bool *pause, bool *asym_pause)
 {
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_REMOTE_CAPABILITY,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-	struct prestera_msg_port_attr_resp resp;
-	int err;
-
-	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
-			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
-	if (err)
-		return err;
-
-	*link_mode_bitmap = resp.param.cap.link_mode;
-
-	return 0;
-}
-
-int prestera_hw_port_remote_fc_get(const struct prestera_port *port,
-				   bool *pause, bool *asym_pause)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_REMOTE_FC,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-	struct prestera_msg_port_attr_resp resp;
-	int err;
-
-	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
-			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
-	if (err)
-		return err;
-
-	switch (resp.param.fc) {
+	switch (fc) {
 	case PRESTERA_FC_SYMMETRIC:
 		*pause = true;
 		*asym_pause = false;
@@ -852,8 +984,6 @@ int prestera_hw_port_remote_fc_get(const struct prestera_port *port,
 		*pause = false;
 		*asym_pause = false;
 	}
-
-	return 0;
 }
 
 int prestera_hw_acl_ruleset_create(struct prestera_switch *sw, u16 *ruleset_id)
@@ -1144,140 +1274,6 @@ int prestera_hw_port_type_get(const struct prestera_port *port, u8 *type)
 	return 0;
 }
 
-int prestera_hw_port_fec_get(const struct prestera_port *port, u8 *fec)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_FEC,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-	struct prestera_msg_port_attr_resp resp;
-	int err;
-
-	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
-			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
-	if (err)
-		return err;
-
-	*fec = resp.param.fec;
-
-	return 0;
-}
-
-int prestera_hw_port_fec_set(const struct prestera_port *port, u8 fec)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_FEC,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-		.param = {
-			.fec = fec,
-		}
-	};
-
-	return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
-			    &req.cmd, sizeof(req));
-}
-
-static u8 prestera_hw_mdix_to_eth(u8 mode)
-{
-	switch (mode) {
-	case PRESTERA_PORT_TP_MDI:
-		return ETH_TP_MDI;
-	case PRESTERA_PORT_TP_MDIX:
-		return ETH_TP_MDI_X;
-	case PRESTERA_PORT_TP_AUTO:
-		return ETH_TP_MDI_AUTO;
-	default:
-		return ETH_TP_MDI_INVALID;
-	}
-}
-
-static u8 prestera_hw_mdix_from_eth(u8 mode)
-{
-	switch (mode) {
-	case ETH_TP_MDI:
-		return PRESTERA_PORT_TP_MDI;
-	case ETH_TP_MDI_X:
-		return PRESTERA_PORT_TP_MDIX;
-	case ETH_TP_MDI_AUTO:
-		return PRESTERA_PORT_TP_AUTO;
-	default:
-		return PRESTERA_PORT_TP_NA;
-	}
-}
-
-int prestera_hw_port_mdix_get(const struct prestera_port *port, u8 *status,
-			      u8 *admin_mode)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_MDIX,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-	struct prestera_msg_port_attr_resp resp;
-	int err;
-
-	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
-			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
-	if (err)
-		return err;
-
-	*status = prestera_hw_mdix_to_eth(resp.param.mdix.status);
-	*admin_mode = prestera_hw_mdix_to_eth(resp.param.mdix.admin_mode);
-
-	return 0;
-}
-
-int prestera_hw_port_mdix_set(const struct prestera_port *port, u8 mode)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_MDIX,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-
-	req.param.mdix.admin_mode = prestera_hw_mdix_from_eth(mode);
-
-	return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
-			    &req.cmd, sizeof(req));
-}
-
-int prestera_hw_port_link_mode_set(const struct prestera_port *port, u32 mode)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_LINK_MODE,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-		.param = {
-			.link_mode = mode,
-		}
-	};
-
-	return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
-			    &req.cmd, sizeof(req));
-}
-
-int prestera_hw_port_link_mode_get(const struct prestera_port *port, u32 *mode)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_LINK_MODE,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-	struct prestera_msg_port_attr_resp resp;
-	int err;
-
-	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
-			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
-	if (err)
-		return err;
-
-	*mode = resp.param.link_mode;
-
-	return 0;
-}
-
 int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed)
 {
 	struct prestera_msg_port_attr_req req = {
@@ -1298,30 +1294,10 @@ int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed)
 	return 0;
 }
 
-int prestera_hw_port_autoneg_set(const struct prestera_port *port,
-				 bool autoneg, u64 link_modes, u8 fec)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_AUTONEG,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-		.param = {
-			.autoneg = {
-				.link_mode = link_modes,
-				.enable = autoneg,
-				.fec = fec,
-			}
-		}
-	};
-
-	return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
-			    &req.cmd, sizeof(req));
-}
-
 int prestera_hw_port_autoneg_restart(struct prestera_port *port)
 {
 	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_AUTONEG_RESTART,
+		.attr = PRESTERA_CMD_PORT_ATTR_PHY_AUTONEG_RESTART,
 		.port = port->hw_id,
 		.dev = port->dev_id,
 	};
@@ -1330,26 +1306,6 @@ int prestera_hw_port_autoneg_restart(struct prestera_port *port)
 			    &req.cmd, sizeof(req));
 }
 
-int prestera_hw_port_duplex_get(const struct prestera_port *port, u8 *duplex)
-{
-	struct prestera_msg_port_attr_req req = {
-		.attr = PRESTERA_CMD_PORT_ATTR_DUPLEX,
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-	struct prestera_msg_port_attr_resp resp;
-	int err;
-
-	err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
-			       &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
-	if (err)
-		return err;
-
-	*duplex = resp.param.duplex;
-
-	return 0;
-}
-
 int prestera_hw_port_stats_get(const struct prestera_port *port,
 			       struct prestera_port_stats *st)
 {
@@ -1774,17 +1730,6 @@ int prestera_hw_rxtx_init(struct prestera_switch *sw,
 	return 0;
 }
 
-int prestera_hw_rxtx_port_init(struct prestera_port *port)
-{
-	struct prestera_msg_rxtx_port_req req = {
-		.port = port->hw_id,
-		.dev = port->dev_id,
-	};
-
-	return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_RXTX_PORT_INIT,
-			    &req.cmd, sizeof(req));
-}
-
 int prestera_hw_lag_member_add(struct prestera_port *port, u16 lag_id)
 {
 	struct prestera_msg_lag_req req = {
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.h b/drivers/net/ethernet/marvell/prestera/prestera_hw.h
index 546d5fd8240d..57a3c2e5b112 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_hw.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.h
@@ -20,6 +20,23 @@ enum prestera_fdb_flush_mode {
 };
 
 enum {
+	PRESTERA_MAC_MODE_INTERNAL,
+	PRESTERA_MAC_MODE_SGMII,
+	PRESTERA_MAC_MODE_1000BASE_X,
+	PRESTERA_MAC_MODE_KR,
+	PRESTERA_MAC_MODE_KR2,
+	PRESTERA_MAC_MODE_KR4,
+	PRESTERA_MAC_MODE_CR,
+	PRESTERA_MAC_MODE_CR2,
+	PRESTERA_MAC_MODE_CR4,
+	PRESTERA_MAC_MODE_SR_LR,
+	PRESTERA_MAC_MODE_SR_LR2,
+	PRESTERA_MAC_MODE_SR_LR4,
+
+	PRESTERA_MAC_MODE_MAX
+};
+
+enum {
 	PRESTERA_LINK_MODE_10baseT_Half,
 	PRESTERA_LINK_MODE_10baseT_Full,
 	PRESTERA_LINK_MODE_100baseT_Half,
@@ -116,32 +133,29 @@ int prestera_hw_switch_mac_set(struct prestera_switch *sw, const char *mac);
 /* Port API */
 int prestera_hw_port_info_get(const struct prestera_port *port,
 			      u32 *dev_id, u32 *hw_id, u16 *fp_id);
-int prestera_hw_port_state_set(const struct prestera_port *port,
-			       bool admin_state);
+
+int prestera_hw_port_mac_mode_get(const struct prestera_port *port,
+				  u32 *mode, u32 *speed, u8 *duplex, u8 *fec);
+int prestera_hw_port_mac_mode_set(const struct prestera_port *port,
+				  bool admin, u32 mode, u8 inband,
+				  u32 speed, u8 duplex, u8 fec);
+int prestera_hw_port_phy_mode_get(const struct prestera_port *port,
+				  u8 *mdix, u64 *lmode_bmap,
+				  bool *fc_pause, bool *fc_asym);
+int prestera_hw_port_phy_mode_set(const struct prestera_port *port,
+				  bool admin, bool adv, u32 mode, u64 modes,
+				  u8 mdix);
+
 int prestera_hw_port_mtu_set(const struct prestera_port *port, u32 mtu);
 int prestera_hw_port_mtu_get(const struct prestera_port *port, u32 *mtu);
 int prestera_hw_port_mac_set(const struct prestera_port *port, const char *mac);
 int prestera_hw_port_mac_get(const struct prestera_port *port, char *mac);
 int prestera_hw_port_cap_get(const struct prestera_port *port,
 			     struct prestera_port_caps *caps);
-int prestera_hw_port_remote_cap_get(const struct prestera_port *port,
-				    u64 *link_mode_bitmap);
-int prestera_hw_port_remote_fc_get(const struct prestera_port *port,
-				   bool *pause, bool *asym_pause);
 int prestera_hw_port_type_get(const struct prestera_port *port, u8 *type);
-int prestera_hw_port_fec_get(const struct prestera_port *port, u8 *fec);
-int prestera_hw_port_fec_set(const struct prestera_port *port, u8 fec);
-int prestera_hw_port_autoneg_set(const struct prestera_port *port,
-				 bool autoneg, u64 link_modes, u8 fec);
 int prestera_hw_port_autoneg_restart(struct prestera_port *port);
-int prestera_hw_port_duplex_get(const struct prestera_port *port, u8 *duplex);
 int prestera_hw_port_stats_get(const struct prestera_port *port,
 			       struct prestera_port_stats *stats);
-int prestera_hw_port_link_mode_set(const struct prestera_port *port, u32 mode);
-int prestera_hw_port_link_mode_get(const struct prestera_port *port, u32 *mode);
-int prestera_hw_port_mdix_get(const struct prestera_port *port, u8 *status,
-			      u8 *admin_mode);
-int prestera_hw_port_mdix_set(const struct prestera_port *port, u8 mode);
 int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed);
 int prestera_hw_port_learning_set(struct prestera_port *port, bool enable);
 int prestera_hw_port_flood_set(struct prestera_port *port, unsigned long mask,
@@ -206,7 +220,6 @@ void prestera_hw_event_handler_unregister(struct prestera_switch *sw,
 /* RX/TX */
 int prestera_hw_rxtx_init(struct prestera_switch *sw,
 			  struct prestera_rxtx_params *params);
-int prestera_hw_rxtx_port_init(struct prestera_port *port);
 
 /* LAG API */
 int prestera_hw_lag_member_add(struct prestera_port *port, u16 lag_id);
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index b667f560b931..5924924e8f13 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -80,27 +80,76 @@ struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id)
 	return port;
 }
 
-static int prestera_port_open(struct net_device *dev)
+int prestera_port_cfg_mac_read(struct prestera_port *port,
+			       struct prestera_port_mac_config *cfg)
+{
+	*cfg = port->cfg_mac;
+	return 0;
+}
+
+int prestera_port_cfg_mac_write(struct prestera_port *port,
+				struct prestera_port_mac_config *cfg)
 {
-	struct prestera_port *port = netdev_priv(dev);
 	int err;
 
-	err = prestera_hw_port_state_set(port, true);
+	err = prestera_hw_port_mac_mode_set(port, cfg->admin,
+					    cfg->mode, cfg->inband, cfg->speed,
+					    cfg->duplex, cfg->fec);
 	if (err)
 		return err;
 
+	port->cfg_mac = *cfg;
+	return 0;
+}
+
+static int prestera_port_open(struct net_device *dev)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_mac_config cfg_mac;
+	int err = 0;
+
+	if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) {
+		err = prestera_port_cfg_mac_read(port, &cfg_mac);
+		if (!err) {
+			cfg_mac.admin = true;
+			err = prestera_port_cfg_mac_write(port, &cfg_mac);
+		}
+	} else {
+		port->cfg_phy.admin = true;
+		err = prestera_hw_port_phy_mode_set(port, true, port->autoneg,
+						    port->cfg_phy.mode,
+						    port->adver_link_modes,
+						    port->cfg_phy.mdix);
+	}
+
 	netif_start_queue(dev);
 
-	return 0;
+	return err;
 }
 
 static int prestera_port_close(struct net_device *dev)
 {
 	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_mac_config cfg_mac;
+	int err = 0;
 
 	netif_stop_queue(dev);
 
-	return prestera_hw_port_state_set(port, false);
+	if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) {
+		err = prestera_port_cfg_mac_read(port, &cfg_mac);
+		if (!err) {
+			cfg_mac.admin = false;
+			prestera_port_cfg_mac_write(port, &cfg_mac);
+		}
+	} else {
+		port->cfg_phy.admin = false;
+		err = prestera_hw_port_phy_mode_set(port, false, port->autoneg,
+						    port->cfg_phy.mode,
+						    port->adver_link_modes,
+						    port->cfg_phy.mdix);
+	}
+
+	return err;
 }
 
 static netdev_tx_t prestera_port_xmit(struct sk_buff *skb,
@@ -228,46 +277,23 @@ static const struct net_device_ops prestera_netdev_ops = {
 	.ndo_get_devlink_port = prestera_devlink_get_port,
 };
 
-int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
-			      u64 adver_link_modes, u8 adver_fec)
+int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes)
 {
-	bool refresh = false;
-	u64 link_modes;
 	int err;
-	u8 fec;
-
-	if (port->caps.type != PRESTERA_PORT_TYPE_TP)
-		return enable ? -EINVAL : 0;
-
-	if (!enable)
-		goto set_autoneg;
-
-	link_modes = port->caps.supp_link_modes & adver_link_modes;
-	fec = port->caps.supp_fec & adver_fec;
-
-	if (!link_modes && !fec)
-		return -EOPNOTSUPP;
-
-	if (link_modes && port->adver_link_modes != link_modes) {
-		port->adver_link_modes = link_modes;
-		refresh = true;
-	}
-
-	if (fec && port->adver_fec != fec) {
-		port->adver_fec = fec;
-		refresh = true;
-	}
 
-set_autoneg:
-	if (port->autoneg == enable && !refresh)
+	if (port->autoneg && port->adver_link_modes == link_modes)
 		return 0;
 
-	err = prestera_hw_port_autoneg_set(port, enable, port->adver_link_modes,
-					   port->adver_fec);
+	err = prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin,
+					    true, 0, link_modes,
+					    port->cfg_phy.mdix);
 	if (err)
 		return err;
 
-	port->autoneg = enable;
+	port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF);
+	port->adver_link_modes = link_modes;
+	port->cfg_phy.mode = 0;
+	port->autoneg = true;
 
 	return 0;
 }
@@ -288,6 +314,7 @@ static void prestera_port_list_del(struct prestera_port *port)
 
 static int prestera_port_create(struct prestera_switch *sw, u32 id)
 {
+	struct prestera_port_mac_config cfg_mac;
 	struct prestera_port *port;
 	struct net_device *dev;
 	int err;
@@ -356,16 +383,43 @@ static int prestera_port_create(struct prestera_switch *sw, u32 id)
 		goto err_port_init;
 	}
 
-	port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF);
-	prestera_port_autoneg_set(port, true, port->caps.supp_link_modes,
-				  port->caps.supp_fec);
+	port->adver_link_modes = port->caps.supp_link_modes;
+	port->adver_fec = 0;
+	port->autoneg = true;
+
+	/* initialize config mac */
+	if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) {
+		cfg_mac.admin = true;
+		cfg_mac.mode = PRESTERA_MAC_MODE_INTERNAL;
+	} else {
+		cfg_mac.admin = false;
+		cfg_mac.mode = PRESTERA_MAC_MODE_MAX;
+	}
+	cfg_mac.inband = false;
+	cfg_mac.speed = 0;
+	cfg_mac.duplex = DUPLEX_UNKNOWN;
+	cfg_mac.fec = PRESTERA_PORT_FEC_OFF;
 
-	err = prestera_hw_port_state_set(port, false);
+	err = prestera_port_cfg_mac_write(port, &cfg_mac);
 	if (err) {
-		dev_err(prestera_dev(sw), "Failed to set port(%u) down\n", id);
+		dev_err(prestera_dev(sw), "Failed to set port(%u) mac mode\n", id);
 		goto err_port_init;
 	}
 
+	/* initialize config phy (if this is inegral) */
+	if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) {
+		port->cfg_phy.mdix = ETH_TP_MDI_AUTO;
+		port->cfg_phy.admin = false;
+		err = prestera_hw_port_phy_mode_set(port,
+						    port->cfg_phy.admin,
+						    false, 0, 0,
+						    port->cfg_phy.mdix);
+		if (err) {
+			dev_err(prestera_dev(sw), "Failed to set port(%u) phy mode\n", id);
+			goto err_port_init;
+		}
+	}
+
 	err = prestera_rxtx_port_init(port);
 	if (err)
 		goto err_port_init;
@@ -446,8 +500,10 @@ static void prestera_port_handle_event(struct prestera_switch *sw,
 
 	caching_dw = &port->cached_hw_stats.caching_dw;
 
-	if (evt->id == PRESTERA_PORT_EVENT_STATE_CHANGED) {
-		if (evt->port_evt.data.oper_state) {
+	prestera_ethtool_port_state_changed(port, &evt->port_evt);
+
+	if (evt->id == PRESTERA_PORT_EVENT_MAC_STATE_CHANGED) {
+		if (port->state_mac.oper) {
 			netif_carrier_on(port->dev);
 			if (!delayed_work_pending(caching_dw))
 				queue_delayed_work(prestera_wq, caching_dw, 0);
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
index a250d394da38..5d4d410b07c8 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
@@ -14,10 +14,10 @@
 
 #define PRESTERA_MSG_MAX_SIZE 1500
 
-#define PRESTERA_SUPP_FW_MAJ_VER	3
+#define PRESTERA_SUPP_FW_MAJ_VER	4
 #define PRESTERA_SUPP_FW_MIN_VER	0
 
-#define PRESTERA_PREV_FW_MAJ_VER	2
+#define PRESTERA_PREV_FW_MAJ_VER	4
 #define PRESTERA_PREV_FW_MIN_VER	0
 
 #define PRESTERA_FW_PATH_FMT	"mrvl/prestera/mvsw_prestera_fw-v%u.%u.img"
@@ -102,23 +102,30 @@ struct prestera_fw_evtq_regs {
 	u32 len;
 };
 
+#define PRESTERA_CMD_QNUM_MAX	4
+
+struct prestera_fw_cmdq_regs {
+	u32 req_ctl;
+	u32 req_len;
+	u32 rcv_ctl;
+	u32 rcv_len;
+	u32 offs;
+	u32 len;
+};
+
 struct prestera_fw_regs {
 	u32 fw_ready;
-	u32 pad;
 	u32 cmd_offs;
 	u32 cmd_len;
+	u32 cmd_qnum;
 	u32 evt_offs;
 	u32 evt_qnum;
 
-	u32 cmd_req_ctl;
-	u32 cmd_req_len;
-	u32 cmd_rcv_ctl;
-	u32 cmd_rcv_len;
-
 	u32 fw_status;
 	u32 rx_status;
 
-	struct prestera_fw_evtq_regs evtq_list[PRESTERA_EVT_QNUM_MAX];
+	struct prestera_fw_cmdq_regs cmdq_list[PRESTERA_EVT_QNUM_MAX];
+	struct prestera_fw_evtq_regs evtq_list[PRESTERA_CMD_QNUM_MAX];
 };
 
 #define PRESTERA_FW_REG_OFFSET(f)	offsetof(struct prestera_fw_regs, f)
@@ -130,14 +137,22 @@ struct prestera_fw_regs {
 
 #define PRESTERA_CMD_BUF_OFFS_REG	PRESTERA_FW_REG_OFFSET(cmd_offs)
 #define PRESTERA_CMD_BUF_LEN_REG	PRESTERA_FW_REG_OFFSET(cmd_len)
+#define PRESTERA_CMD_QNUM_REG		PRESTERA_FW_REG_OFFSET(cmd_qnum)
 #define PRESTERA_EVT_BUF_OFFS_REG	PRESTERA_FW_REG_OFFSET(evt_offs)
 #define PRESTERA_EVT_QNUM_REG		PRESTERA_FW_REG_OFFSET(evt_qnum)
 
-#define PRESTERA_CMD_REQ_CTL_REG	PRESTERA_FW_REG_OFFSET(cmd_req_ctl)
-#define PRESTERA_CMD_REQ_LEN_REG	PRESTERA_FW_REG_OFFSET(cmd_req_len)
+#define PRESTERA_CMDQ_REG_OFFSET(q, f)			\
+	(PRESTERA_FW_REG_OFFSET(cmdq_list) +		\
+	 (q) * sizeof(struct prestera_fw_cmdq_regs) +	\
+	 offsetof(struct prestera_fw_cmdq_regs, f))
+
+#define PRESTERA_CMDQ_REQ_CTL_REG(q)	PRESTERA_CMDQ_REG_OFFSET(q, req_ctl)
+#define PRESTERA_CMDQ_REQ_LEN_REG(q)	PRESTERA_CMDQ_REG_OFFSET(q, req_len)
+#define PRESTERA_CMDQ_RCV_CTL_REG(q)	PRESTERA_CMDQ_REG_OFFSET(q, rcv_ctl)
+#define PRESTERA_CMDQ_RCV_LEN_REG(q)	PRESTERA_CMDQ_REG_OFFSET(q, rcv_len)
+#define PRESTERA_CMDQ_OFFS_REG(q)	PRESTERA_CMDQ_REG_OFFSET(q, offs)
+#define PRESTERA_CMDQ_LEN_REG(q)	PRESTERA_CMDQ_REG_OFFSET(q, len)
 
-#define PRESTERA_CMD_RCV_CTL_REG	PRESTERA_FW_REG_OFFSET(cmd_rcv_ctl)
-#define PRESTERA_CMD_RCV_LEN_REG	PRESTERA_FW_REG_OFFSET(cmd_rcv_len)
 #define PRESTERA_FW_STATUS_REG		PRESTERA_FW_REG_OFFSET(fw_status)
 #define PRESTERA_RX_STATUS_REG		PRESTERA_FW_REG_OFFSET(rx_status)
 
@@ -174,6 +189,13 @@ struct prestera_fw_evtq {
 	size_t len;
 };
 
+struct prestera_fw_cmdq {
+	/* serialize access to dev->send_req */
+	struct mutex cmd_mtx;
+	u8 __iomem *addr;
+	size_t len;
+};
+
 struct prestera_fw {
 	struct prestera_fw_rev rev_supp;
 	const struct firmware *bin;
@@ -183,9 +205,10 @@ struct prestera_fw {
 	u8 __iomem *ldr_ring_buf;
 	u32 ldr_buf_len;
 	u32 ldr_wr_idx;
-	struct mutex cmd_mtx; /* serialize access to dev->send_req */
 	size_t cmd_mbox_len;
 	u8 __iomem *cmd_mbox;
+	struct prestera_fw_cmdq cmd_queue[PRESTERA_CMD_QNUM_MAX];
+	u8 cmd_qnum;
 	struct prestera_fw_evtq evt_queue[PRESTERA_EVT_QNUM_MAX];
 	u8 evt_qnum;
 	struct work_struct evt_work;
@@ -324,7 +347,27 @@ static int prestera_fw_wait_reg32(struct prestera_fw *fw, u32 reg, u32 cmp,
 				  1 * USEC_PER_MSEC, waitms * USEC_PER_MSEC);
 }
 
-static int prestera_fw_cmd_send(struct prestera_fw *fw,
+static void prestera_fw_cmdq_lock(struct prestera_fw *fw, u8 qid)
+{
+	mutex_lock(&fw->cmd_queue[qid].cmd_mtx);
+}
+
+static void prestera_fw_cmdq_unlock(struct prestera_fw *fw, u8 qid)
+{
+	mutex_unlock(&fw->cmd_queue[qid].cmd_mtx);
+}
+
+static u32 prestera_fw_cmdq_len(struct prestera_fw *fw, u8 qid)
+{
+	return fw->cmd_queue[qid].len;
+}
+
+static u8 __iomem *prestera_fw_cmdq_buf(struct prestera_fw *fw, u8 qid)
+{
+	return fw->cmd_queue[qid].addr;
+}
+
+static int prestera_fw_cmd_send(struct prestera_fw *fw, int qid,
 				void *in_msg, size_t in_size,
 				void *out_msg, size_t out_size,
 				unsigned int waitms)
@@ -335,30 +378,32 @@ static int prestera_fw_cmd_send(struct prestera_fw *fw,
 	if (!waitms)
 		waitms = PRESTERA_FW_CMD_DEFAULT_WAIT_MS;
 
-	if (ALIGN(in_size, 4) > fw->cmd_mbox_len)
+	if (ALIGN(in_size, 4) > prestera_fw_cmdq_len(fw, qid))
 		return -EMSGSIZE;
 
 	/* wait for finish previous reply from FW */
-	err = prestera_fw_wait_reg32(fw, PRESTERA_CMD_RCV_CTL_REG, 0, 30);
+	err = prestera_fw_wait_reg32(fw, PRESTERA_CMDQ_RCV_CTL_REG(qid), 0, 30);
 	if (err) {
 		dev_err(fw->dev.dev, "finish reply from FW is timed out\n");
 		return err;
 	}
 
-	prestera_fw_write(fw, PRESTERA_CMD_REQ_LEN_REG, in_size);
-	memcpy_toio(fw->cmd_mbox, in_msg, in_size);
+	prestera_fw_write(fw, PRESTERA_CMDQ_REQ_LEN_REG(qid), in_size);
+
+	memcpy_toio(prestera_fw_cmdq_buf(fw, qid), in_msg, in_size);
 
-	prestera_fw_write(fw, PRESTERA_CMD_REQ_CTL_REG, PRESTERA_CMD_F_REQ_SENT);
+	prestera_fw_write(fw, PRESTERA_CMDQ_REQ_CTL_REG(qid),
+			  PRESTERA_CMD_F_REQ_SENT);
 
 	/* wait for reply from FW */
-	err = prestera_fw_wait_reg32(fw, PRESTERA_CMD_RCV_CTL_REG,
+	err = prestera_fw_wait_reg32(fw, PRESTERA_CMDQ_RCV_CTL_REG(qid),
 				     PRESTERA_CMD_F_REPL_SENT, waitms);
 	if (err) {
 		dev_err(fw->dev.dev, "reply from FW is timed out\n");
 		goto cmd_exit;
 	}
 
-	ret_size = prestera_fw_read(fw, PRESTERA_CMD_RCV_LEN_REG);
+	ret_size = prestera_fw_read(fw, PRESTERA_CMDQ_RCV_LEN_REG(qid));
 	if (ret_size > out_size) {
 		dev_err(fw->dev.dev, "ret_size (%u) > out_len(%zu)\n",
 			ret_size, out_size);
@@ -366,14 +411,15 @@ static int prestera_fw_cmd_send(struct prestera_fw *fw,
 		goto cmd_exit;
 	}
 
-	memcpy_fromio(out_msg, fw->cmd_mbox + in_size, ret_size);
+	memcpy_fromio(out_msg, prestera_fw_cmdq_buf(fw, qid) + in_size, ret_size);
 
 cmd_exit:
-	prestera_fw_write(fw, PRESTERA_CMD_REQ_CTL_REG, PRESTERA_CMD_F_REPL_RCVD);
+	prestera_fw_write(fw, PRESTERA_CMDQ_REQ_CTL_REG(qid),
+			  PRESTERA_CMD_F_REPL_RCVD);
 	return err;
 }
 
-static int prestera_fw_send_req(struct prestera_device *dev,
+static int prestera_fw_send_req(struct prestera_device *dev, int qid,
 				void *in_msg, size_t in_size, void *out_msg,
 				size_t out_size, unsigned int waitms)
 {
@@ -382,9 +428,10 @@ static int prestera_fw_send_req(struct prestera_device *dev,
 
 	fw = container_of(dev, struct prestera_fw, dev);
 
-	mutex_lock(&fw->cmd_mtx);
-	ret = prestera_fw_cmd_send(fw, in_msg, in_size, out_msg, out_size, waitms);
-	mutex_unlock(&fw->cmd_mtx);
+	prestera_fw_cmdq_lock(fw, qid);
+	ret = prestera_fw_cmd_send(fw, qid, in_msg, in_size, out_msg, out_size,
+				   waitms);
+	prestera_fw_cmdq_unlock(fw, qid);
 
 	return ret;
 }
@@ -414,7 +461,16 @@ static int prestera_fw_init(struct prestera_fw *fw)
 
 	fw->cmd_mbox = base + prestera_fw_read(fw, PRESTERA_CMD_BUF_OFFS_REG);
 	fw->cmd_mbox_len = prestera_fw_read(fw, PRESTERA_CMD_BUF_LEN_REG);
-	mutex_init(&fw->cmd_mtx);
+	fw->cmd_qnum = prestera_fw_read(fw, PRESTERA_CMD_QNUM_REG);
+
+	for (qid = 0; qid < fw->cmd_qnum; qid++) {
+		u32 offs = prestera_fw_read(fw, PRESTERA_CMDQ_OFFS_REG(qid));
+		struct prestera_fw_cmdq *cmdq = &fw->cmd_queue[qid];
+
+		cmdq->len = prestera_fw_read(fw, PRESTERA_CMDQ_LEN_REG(qid));
+		cmdq->addr = fw->cmd_mbox + offs;
+		mutex_init(&cmdq->cmd_mtx);
+	}
 
 	fw->evt_buf = base + prestera_fw_read(fw, PRESTERA_EVT_BUF_OFFS_REG);
 	fw->evt_qnum = prestera_fw_read(fw, PRESTERA_EVT_QNUM_REG);
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c
index 73d2eba5262f..e452cdeaf703 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c
@@ -794,14 +794,7 @@ void prestera_rxtx_switch_fini(struct prestera_switch *sw)
 
 int prestera_rxtx_port_init(struct prestera_port *port)
 {
-	int err;
-
-	err = prestera_hw_rxtx_port_init(port);
-	if (err)
-		return err;
-
 	port->dev->needed_headroom = PRESTERA_DSA_HLEN;
-
 	return 0;
 }
 
-- 
2.7.4


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-20  9:32 [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support Volodymyr Mytnyk
@ 2021-10-20 12:47 ` Andrew Lunn
  2021-10-21  7:40   ` Volodymyr Mytnyk [C]
  2021-10-21 23:13 ` Jakub Kicinski
  2021-10-22 12:27 ` Andrew Lunn
  2 siblings, 1 reply; 9+ messages in thread
From: Andrew Lunn @ 2021-10-20 12:47 UTC (permalink / raw)
  To: Volodymyr Mytnyk
  Cc: kuba, mickeyr, serhiy.pshyk, taras.chornyi, Volodymyr Mytnyk,
	Vadym Kochan, Yevhen Orlov, Taras Chornyi, David S. Miller,
	netdev, linux-kernel

On Wed, Oct 20, 2021 at 12:32:28PM +0300, Volodymyr Mytnyk wrote:
> From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> 
> Add firmware (FW) version 4.0 support for Marvell Prestera
> driver.
> 
> Major changes have been made to new v4.0 FW ABI to add support
> of new features, introduce the stability of the FW ABI and ensure
> better forward compatibility for the future driver vesrions.
> 
> Current v4.0 FW feature set support does not expect any changes
> to ABI, as it was defined and tested through long period of time.
> The ABI may be extended in case of new features, but it will not
> break the backward compatibility.

So if we decide to merge this, we will hold you to this statement. You
can never again break the ABI. The driver will always support v4.0
firmware.

Are you really sure you have it correct this time?

    Andrew

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-20 12:47 ` Andrew Lunn
@ 2021-10-21  7:40   ` Volodymyr Mytnyk [C]
  0 siblings, 0 replies; 9+ messages in thread
From: Volodymyr Mytnyk [C] @ 2021-10-21  7:40 UTC (permalink / raw)
  To: Andrew Lunn
  Cc: kuba, Mickey Rachamim, Serhiy Pshyk, Taras Chornyi,
	Vadym Kochan [C], Yevhen Orlov, Taras Chornyi [C],
	David S. Miller, netdev, linux-kernel

Hi Andrew

> On Wed, Oct 20, 2021 at 12:32:28PM +0300, Volodymyr Mytnyk wrote:
> > From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> > 
> > Add firmware (FW) version 4.0 support for Marvell Prestera driver.
> > 
> > Major changes have been made to new v4.0 FW ABI to add support of new 
> > features, introduce the stability of the FW ABI and ensure better 
> > forward compatibility for the future driver vesrions.
> > 
> > Current v4.0 FW feature set support does not expect any changes to 
> > ABI, as it was defined and tested through long period of time.
> > The ABI may be extended in case of new features, but it will not break 
> > the backward compatibility.
> 
> So if we decide to merge this, we will hold you to this statement. You can never again break the ABI. The driver will always support v4.0 firmware.
> 
> Are you really sure you have it correct this time?
> 
>     Andrew
> 

So, the v4.0 FW supports stable ABI for the following set of features:

  - L1 port management
  - lag, vlans
  - routing, ecmp
  - tc templates, chains, conntrack, policer
  - bridge port insolation
  - HW counters
  - storm control

Some of those features are not fully supported yet by the driver. So, while we support these in the driver, the ABI is not expected to be changed.
Of course, with new features to come, the FW will be extended, while the backward compatibility will remain stable with the previous FW version. 
Bottom line, for this set of features, the ABI is expected to remain as is.

  Volodymyr

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-20  9:32 [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support Volodymyr Mytnyk
  2021-10-20 12:47 ` Andrew Lunn
@ 2021-10-21 23:13 ` Jakub Kicinski
  2021-10-22 22:07   ` Volodymyr Mytnyk [C]
  2021-10-22 12:27 ` Andrew Lunn
  2 siblings, 1 reply; 9+ messages in thread
From: Jakub Kicinski @ 2021-10-21 23:13 UTC (permalink / raw)
  To: Volodymyr Mytnyk
  Cc: andrew, mickeyr, serhiy.pshyk, taras.chornyi, Volodymyr Mytnyk,
	Vadym Kochan, Yevhen Orlov, Taras Chornyi, David S. Miller,
	netdev

On Wed, 20 Oct 2021 12:32:28 +0300 Volodymyr Mytnyk wrote:
> +struct prestera_port_mac_state {
> +	bool oper;
> +	u32 mode;
> +	u32 speed;
> +	u8 duplex;
> +	u8 fc;
> +	u8 fec;
> +};
> +
> +struct prestera_port_phy_state {
> +	u64 lmode_bmap;
> +	struct {
> +		bool pause;
> +		bool asym_pause;
> +	} remote_fc;
> +	u8 mdix;
> +};
> +
> +struct prestera_port_mac_config {
> +	bool admin;
> +	u32 mode;
> +	u8 inband;
> +	u32 speed;
> +	u8 duplex;
> +	u8 fec;

Is it just me or these structures are offensively badly laid out?

pahole is your friend.

> +};
> +
> +/* TODO: add another parameters here: modes, etc... */
> +struct prestera_port_phy_config {
> +	bool admin;
> +	u32 mode;
> +	u8 mdix;
> +};

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-20  9:32 [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support Volodymyr Mytnyk
  2021-10-20 12:47 ` Andrew Lunn
  2021-10-21 23:13 ` Jakub Kicinski
@ 2021-10-22 12:27 ` Andrew Lunn
  2021-10-22 12:51   ` Andrew Lunn
  2021-10-22 22:27   ` Volodymyr Mytnyk [C]
  2 siblings, 2 replies; 9+ messages in thread
From: Andrew Lunn @ 2021-10-22 12:27 UTC (permalink / raw)
  To: Volodymyr Mytnyk
  Cc: kuba, mickeyr, serhiy.pshyk, taras.chornyi, Volodymyr Mytnyk,
	Vadym Kochan, Yevhen Orlov, Taras Chornyi, David S. Miller,
	netdev, linux-kernel

On Wed, Oct 20, 2021 at 12:32:28PM +0300, Volodymyr Mytnyk wrote:
> From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> 
> Add firmware (FW) version 4.0 support for Marvell Prestera
> driver.
> 
> Major changes have been made to new v4.0 FW ABI to add support
> of new features, introduce the stability of the FW ABI and ensure
> better forward compatibility for the future driver vesrions.
> 
> Current v4.0 FW feature set support does not expect any changes
> to ABI, as it was defined and tested through long period of time.
> The ABI may be extended in case of new features, but it will not
> break the backward compatibility.
> 
> ABI major changes done in v4.0:
> - L1 ABI, where MAC and PHY API configuration are split.
> - ACL has been split to low-level TCAM and Counters ABI
>   to provide more HW ACL capabilities for future driver
>   versions.
> 
> To support backward support, the addition compatibility layer is
> required in the driver which will have two different codebase under
> "if FW-VER elif FW-VER else" conditions that will be removed
> in the future anyway, So, the idea was to break backward support
> and focus on more stable FW instead of supporting old version
> with very minimal and limited set of features/capabilities.
 
> +/* TODO: add another parameters here: modes, etc... */
> +struct prestera_port_phy_config {
> +	bool admin;
> +	u32 mode;
> +	u8 mdix;
> +};

> @@ -242,10 +246,44 @@ union prestera_msg_port_param {
>  	u8  duplex;
>  	u8  fec;
>  	u8  fc;
> -	struct prestera_msg_port_mdix_param mdix;
> -	struct prestera_msg_port_autoneg_param autoneg;
> +
> +	union {
> +		struct {
> +			/* TODO: merge it with "mode" */

> +		struct {
> +			/* TODO: merge it with "mode" */
> +			u8 admin:1;
> +			u8 adv_enable;
> +			u64 modes;
> +			/* TODO: merge it with modes */
> +			u32 mode;
> +			u8 mdix;
> +		} phy;

You claim this is stable, yet there are four TODOs. Please could you
convince us you can actually do these TODO without breaking the
ABI. Can you add more members to the end of these structures, and the
firmware/driver can know they are there? Since these are often unions,
you might not be able to tell from the length of the message
exchanged.

As Jakub pointed out, your structures have horrible alignment. Have
you run this on both 32 and 64 bit systems? It would be good to add

BUILD_BUG_ON(sizeof(*foo) != 42)

for all the structures that get passed to/from the firmware.

    Andrew

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-22 12:27 ` Andrew Lunn
@ 2021-10-22 12:51   ` Andrew Lunn
  2021-10-22 22:10     ` Volodymyr Mytnyk [C]
  2021-10-22 22:27   ` Volodymyr Mytnyk [C]
  1 sibling, 1 reply; 9+ messages in thread
From: Andrew Lunn @ 2021-10-22 12:51 UTC (permalink / raw)
  To: Volodymyr Mytnyk
  Cc: kuba, mickeyr, serhiy.pshyk, taras.chornyi, Volodymyr Mytnyk,
	Vadym Kochan, Yevhen Orlov, Taras Chornyi, David S. Miller,
	netdev, linux-kernel

On Fri, Oct 22, 2021 at 02:27:37PM +0200, Andrew Lunn wrote:
> On Wed, Oct 20, 2021 at 12:32:28PM +0300, Volodymyr Mytnyk wrote:
> > From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> > 
> > Add firmware (FW) version 4.0 support for Marvell Prestera
> > driver.
> > 
> > Major changes have been made to new v4.0 FW ABI to add support
> > of new features, introduce the stability of the FW ABI and ensure
> > better forward compatibility for the future driver vesrions.
> > 
> > Current v4.0 FW feature set support does not expect any changes
> > to ABI, as it was defined and tested through long period of time.
> > The ABI may be extended in case of new features, but it will not
> > break the backward compatibility.
> > 
> > ABI major changes done in v4.0:
> > - L1 ABI, where MAC and PHY API configuration are split.
> > - ACL has been split to low-level TCAM and Counters ABI
> >   to provide more HW ACL capabilities for future driver
> >   versions.
> > 
> > To support backward support, the addition compatibility layer is
> > required in the driver which will have two different codebase under
> > "if FW-VER elif FW-VER else" conditions that will be removed
> > in the future anyway, So, the idea was to break backward support
> > and focus on more stable FW instead of supporting old version
> > with very minimal and limited set of features/capabilities.
>  
> > +/* TODO: add another parameters here: modes, etc... */
> > +struct prestera_port_phy_config {
> > +	bool admin;
> > +	u32 mode;
> > +	u8 mdix;
> > +};
> 
> > @@ -242,10 +246,44 @@ union prestera_msg_port_param {
> >  	u8  duplex;
> >  	u8  fec;
> >  	u8  fc;
> > -	struct prestera_msg_port_mdix_param mdix;
> > -	struct prestera_msg_port_autoneg_param autoneg;
> > +
> > +	union {
> > +		struct {
> > +			/* TODO: merge it with "mode" */
> 
> > +		struct {
> > +			/* TODO: merge it with "mode" */
> > +			u8 admin:1;
> > +			u8 adv_enable;
> > +			u64 modes;
> > +			/* TODO: merge it with modes */
> > +			u32 mode;
> > +			u8 mdix;
> > +		} phy;

Please can you also make use of __le64, __le32, __le16 in messages
to/from the firmware, so sparse etc can help you catch were you are
missing htonl(), htons() etc.

    Andrew

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-21 23:13 ` Jakub Kicinski
@ 2021-10-22 22:07   ` Volodymyr Mytnyk [C]
  0 siblings, 0 replies; 9+ messages in thread
From: Volodymyr Mytnyk [C] @ 2021-10-22 22:07 UTC (permalink / raw)
  To: Jakub Kicinski
  Cc: andrew, Mickey Rachamim, Serhiy Pshyk, Taras Chornyi,
	Vadym Kochan [C], Yevhen Orlov, Taras Chornyi [C],
	David S. Miller, netdev

>
> > +struct prestera_port_mac_state {
> > +     bool oper;
> > +     u32 mode;
> > +     u32 speed;
> > +     u8 duplex;
> > +     u8 fc;
> > +     u8 fec;
> > +};
> > +
> > +struct prestera_port_phy_state {
> > +     u64 lmode_bmap;
> > +     struct {
> > +             bool pause;
> > +             bool asym_pause;
> > +     } remote_fc;
> > +     u8 mdix;
> > +};
> > +
> > +struct prestera_port_mac_config {
> > +     bool admin;
> > +     u32 mode;
> > +     u8 inband;
> > +     u32 speed;
> > +     u8 duplex;
> > +     u8 fec;
> 
> Is it just me or these structures are offensively badly laid out?
> 
> pahole is your friend.

Thanks! will fix it in next patch set.

> 
> > +};
> > +
> > +/* TODO: add another parameters here: modes, etc... */
> > +struct prestera_port_phy_config {
> > +     bool admin;
> > +     u32 mode;
> > +     u8 mdix;
> > +};

  Volodymyr

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-22 12:51   ` Andrew Lunn
@ 2021-10-22 22:10     ` Volodymyr Mytnyk [C]
  0 siblings, 0 replies; 9+ messages in thread
From: Volodymyr Mytnyk [C] @ 2021-10-22 22:10 UTC (permalink / raw)
  To: Andrew Lunn, Volodymyr Mytnyk
  Cc: kuba, Mickey Rachamim, Serhiy Pshyk, Taras Chornyi,
	Vadym Kochan [C], Yevhen Orlov, Taras Chornyi [C],
	David S. Miller, netdev, linux-kernel

> On Fri, Oct 22, 2021 at 02:27:37PM +0200, Andrew Lunn wrote:
> > On Wed, Oct 20, 2021 at 12:32:28PM +0300, Volodymyr Mytnyk wrote:
> > > From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> > > 
> > > Add firmware (FW) version 4.0 support for Marvell Prestera
> > > driver.
> > > 
> > > Major changes have been made to new v4.0 FW ABI to add support
> > > of new features, introduce the stability of the FW ABI and ensure
> > > better forward compatibility for the future driver vesrions.
> > > 
> > > Current v4.0 FW feature set support does not expect any changes
> > > to ABI, as it was defined and tested through long period of time.
> > > The ABI may be extended in case of new features, but it will not
> > > break the backward compatibility.
> > > 
> > > ABI major changes done in v4.0:
> > > - L1 ABI, where MAC and PHY API configuration are split.
> > > - ACL has been split to low-level TCAM and Counters ABI
> > >   to provide more HW ACL capabilities for future driver
> > >   versions.
> > > 
> > > To support backward support, the addition compatibility layer is
> > > required in the driver which will have two different codebase under
> > > "if FW-VER elif FW-VER else" conditions that will be removed
> > > in the future anyway, So, the idea was to break backward support
> > > and focus on more stable FW instead of supporting old version
> > > with very minimal and limited set of features/capabilities.
> >  
> > > +/* TODO: add another parameters here: modes, etc... */
> > > +struct prestera_port_phy_config {
> > > +   bool admin;
> > > +   u32 mode;
> > > +   u8 mdix;
> > > +};
> > 
> > > @@ -242,10 +246,44 @@ union prestera_msg_port_param {
> > >      u8  duplex;
> > >      u8  fec;
> > >      u8  fc;
> > > -   struct prestera_msg_port_mdix_param mdix;
> > > -   struct prestera_msg_port_autoneg_param autoneg;
> > > +
> > > +   union {
> > > +           struct {
> > > +                   /* TODO: merge it with "mode" */
> > 
> > > +           struct {
> > > +                   /* TODO: merge it with "mode" */
> > > +                   u8 admin:1;
> > > +                   u8 adv_enable;
> > > +                   u64 modes;
> > > +                   /* TODO: merge it with modes */
> > > +                   u32 mode;
> > > +                   u8 mdix;
> > > +           } phy;
> 
> Please can you also make use of __le64, __le32, __le16 in messages
> to/from the firmware, so sparse etc can help you catch were you are
> missing htonl(), htons() etc.
> 
>    Andrew
>

Makes sense, will fix in next patch set.

  Volodymyr

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support
  2021-10-22 12:27 ` Andrew Lunn
  2021-10-22 12:51   ` Andrew Lunn
@ 2021-10-22 22:27   ` Volodymyr Mytnyk [C]
  1 sibling, 0 replies; 9+ messages in thread
From: Volodymyr Mytnyk [C] @ 2021-10-22 22:27 UTC (permalink / raw)
  To: Andrew Lunn
  Cc: kuba, Mickey Rachamim, Serhiy Pshyk, Taras Chornyi,
	Vadym Kochan [C], Yevhen Orlov, Taras Chornyi [C],
	David S. Miller, netdev, linux-kernel

> On Wed, Oct 20, 2021 at 12:32:28PM +0300, Volodymyr Mytnyk wrote:
> > From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> > 
> > Add firmware (FW) version 4.0 support for Marvell Prestera
> > driver.
> > 
> > Major changes have been made to new v4.0 FW ABI to add support
> > of new features, introduce the stability of the FW ABI and ensure
> > better forward compatibility for the future driver vesrions.
> > 
> > Current v4.0 FW feature set support does not expect any changes
> > to ABI, as it was defined and tested through long period of time.
> > The ABI may be extended in case of new features, but it will not
> > break the backward compatibility.
> > 
> > ABI major changes done in v4.0:
> > - L1 ABI, where MAC and PHY API configuration are split.
> > - ACL has been split to low-level TCAM and Counters ABI
> >   to provide more HW ACL capabilities for future driver
> >   versions.
> > 
> > To support backward support, the addition compatibility layer is
> > required in the driver which will have two different codebase under
> > "if FW-VER elif FW-VER else" conditions that will be removed
> > in the future anyway, So, the idea was to break backward support
> > and focus on more stable FW instead of supporting old version
> > with very minimal and limited set of features/capabilities.
>  
> > +/* TODO: add another parameters here: modes, etc... */
> > +struct prestera_port_phy_config {
> > +     bool admin;
> > +     u32 mode;
> > +     u8 mdix;
> > +};
> 
> > @@ -242,10 +246,44 @@ union prestera_msg_port_param {
> >        u8  duplex;
> >        u8  fec;
> >        u8  fc;
> > -     struct prestera_msg_port_mdix_param mdix;
> > -     struct prestera_msg_port_autoneg_param autoneg;
> > +
> > +     union {
> > +             struct {
> > +                     /* TODO: merge it with "mode" */
> 
> > +             struct {
> > +                     /* TODO: merge it with "mode" */
> > +                     u8 admin:1;
> > +                     u8 adv_enable;
> > +                     u64 modes;
> > +                     /* TODO: merge it with modes */
> > +                     u32 mode;
> > +                     u8 mdix;
> > +             } phy;
> 
> You claim this is stable, yet there are four TODOs. Please could you
> convince us you can actually do these TODO without breaking the
> ABI. Can you add more members to the end of these structures, and the
> firmware/driver can know they are there? Since these are often unions,
> you might not be able to tell from the length of the message
> exchanged.

Those TODOs are not valid anymore, will just remove the comments. No merge
is needed :) Adding new members to the end will be fine for the firmware
& driver.

> 
> As Jakub pointed out, your structures have horrible alignment. Have
> you run this on both 32 and 64 bit systems? It would be good to add
> 
> BUILD_BUG_ON(sizeof(*foo) != 42)
> 
> for all the structures that get passed to/from the firmware.
> 
>     Andrew

Most of the testing is done on 64 bit system. On 32 should be fine also, as
the structure is packed & aligned. Anyway, I think to add build checking is
good idea to make sure the size is fine on both systems. Thanks.

  Volodymyr

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2021-10-22 22:27 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-10-20  9:32 [PATCH net-next v3] net: marvell: prestera: add firmware v4.0 support Volodymyr Mytnyk
2021-10-20 12:47 ` Andrew Lunn
2021-10-21  7:40   ` Volodymyr Mytnyk [C]
2021-10-21 23:13 ` Jakub Kicinski
2021-10-22 22:07   ` Volodymyr Mytnyk [C]
2021-10-22 12:27 ` Andrew Lunn
2021-10-22 12:51   ` Andrew Lunn
2021-10-22 22:10     ` Volodymyr Mytnyk [C]
2021-10-22 22:27   ` Volodymyr Mytnyk [C]

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