Commit 7deedd9f authored by Shyam Sundar S K's avatar Shyam Sundar S K Committed by David S. Miller
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amd-xgbe: Add support for new port mode 



Add support for a new port mode that is a backplane connection without
support for auto negotiation.

Signed-off-by: default avatarShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a609d025

drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c

+13 −0
Original line number Diff line number Diff line
@@ -166,6 +166,7 @@ enum xgbe_port_mode { 
	XGBE_PORT_MODE_10GBASE_T,

	XGBE_PORT_MODE_10GBASE_R,

	XGBE_PORT_MODE_SFP,

	XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG,

	XGBE_PORT_MODE_MAX,

};
@@ -1634,6 +1635,7 @@ static enum xgbe_mode xgbe_phy_an73_redrv_outcome(struct xgbe_prv_data *pdata) 
	if (ad_reg & 0x80) {

		switch (phy_data->port_mode) {

		case XGBE_PORT_MODE_BACKPLANE:

		case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

			mode = XGBE_MODE_KR;

			break;

		default:
@@ -1643,6 +1645,7 @@ static enum xgbe_mode xgbe_phy_an73_redrv_outcome(struct xgbe_prv_data *pdata) 
	} else if (ad_reg & 0x20) {

		switch (phy_data->port_mode) {

		case XGBE_PORT_MODE_BACKPLANE:

		case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

			mode = XGBE_MODE_KX_1000;

			break;

		case XGBE_PORT_MODE_1000BASE_X:
@@ -1782,6 +1785,7 @@ static void xgbe_phy_an_advertising(struct xgbe_prv_data *pdata, 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		XGBE_SET_ADV(dlks, 10000baseKR_Full);

		break;

	case XGBE_PORT_MODE_BACKPLANE_2500:
@@ -1874,6 +1878,7 @@ static enum xgbe_an_mode xgbe_phy_an_mode(struct xgbe_prv_data *pdata) 
	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

		return XGBE_AN_MODE_CL73;

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

	case XGBE_PORT_MODE_BACKPLANE_2500:

		return XGBE_AN_MODE_NONE;

	case XGBE_PORT_MODE_1000BASE_T:
@@ -2156,6 +2161,7 @@ static enum xgbe_mode xgbe_phy_switch_mode(struct xgbe_prv_data *pdata) 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		return xgbe_phy_switch_bp_mode(pdata);

	case XGBE_PORT_MODE_BACKPLANE_2500:

		return xgbe_phy_switch_bp_2500_mode(pdata);
@@ -2251,6 +2257,7 @@ static enum xgbe_mode xgbe_phy_get_mode(struct xgbe_prv_data *pdata, 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		return xgbe_phy_get_bp_mode(speed);

	case XGBE_PORT_MODE_BACKPLANE_2500:

		return xgbe_phy_get_bp_2500_mode(speed);
@@ -2426,6 +2433,7 @@ static bool xgbe_phy_use_mode(struct xgbe_prv_data *pdata, enum xgbe_mode mode) 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		return xgbe_phy_use_bp_mode(pdata, mode);

	case XGBE_PORT_MODE_BACKPLANE_2500:

		return xgbe_phy_use_bp_2500_mode(pdata, mode);
@@ -2515,6 +2523,7 @@ static bool xgbe_phy_valid_speed(struct xgbe_prv_data *pdata, int speed) 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		return xgbe_phy_valid_speed_bp_mode(speed);

	case XGBE_PORT_MODE_BACKPLANE_2500:

		return xgbe_phy_valid_speed_bp_2500_mode(speed);
@@ -2792,6 +2801,7 @@ static bool xgbe_phy_port_mode_mismatch(struct xgbe_prv_data *pdata) 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		if ((phy_data->port_speeds & XGBE_PHY_PORT_SPEED_1000) ||

		    (phy_data->port_speeds & XGBE_PHY_PORT_SPEED_10000))

			return false;
@@ -2844,6 +2854,7 @@ static bool xgbe_phy_conn_type_mismatch(struct xgbe_prv_data *pdata) 


	switch (phy_data->port_mode) {

	case XGBE_PORT_MODE_BACKPLANE:

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

	case XGBE_PORT_MODE_BACKPLANE_2500:

		if (phy_data->conn_type == XGBE_CONN_TYPE_BACKPLANE)

			return false;
@@ -3160,6 +3171,8 @@ static int xgbe_phy_init(struct xgbe_prv_data *pdata) 
	/* Backplane support */

	case XGBE_PORT_MODE_BACKPLANE:

		XGBE_SET_SUP(lks, Autoneg);

		fallthrough;

	case XGBE_PORT_MODE_BACKPLANE_NO_AUTONEG:

		XGBE_SET_SUP(lks, Pause);

		XGBE_SET_SUP(lks, Asym_Pause);

		XGBE_SET_SUP(lks, Backplane);