ice: add link lenient and default override support

Adds functions to check for link override firmware support and get
the override settings for a port. The previously supported/default link
mode was strict mode.

In strict mode link is configured based on get PHY capabilities PHY types
with media.

Lenient mode is now the default link mode. In lenient mode the link is
configured based on get PHY capabilities PHY types without media. This
allows the user to configure link that the media does not report. Limit the
minimum supported link mode to 25G for devices that support 100G, and 1G
for devices that support less than 100G.

Default override is only supported in lenient mode. If default override
is supported and enabled, then default override values are used for
configuring speed and FEC. Default override provide persistent link
settings in the NVM.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Evan Swanson <evan.swanson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index f08913611ed9..08c616d9fffd 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -118,6 +118,7 @@ enum ice_set_fc_aq_failures {
 /* Various MAC types */
 enum ice_mac_type {
 	ICE_MAC_UNKNOWN = 0,
+	ICE_MAC_E810,
 	ICE_MAC_GENERIC,
 };
 
@@ -314,6 +315,28 @@ struct ice_nvm_info {
 	u8 blank_nvm_mode;        /* is NVM empty (no FW present) */
 };
 
+struct ice_link_default_override_tlv {
+	u8 options;
+#define ICE_LINK_OVERRIDE_OPT_M		0x3F
+#define ICE_LINK_OVERRIDE_STRICT_MODE	BIT(0)
+#define ICE_LINK_OVERRIDE_EPCT_DIS	BIT(1)
+#define ICE_LINK_OVERRIDE_PORT_DIS	BIT(2)
+#define ICE_LINK_OVERRIDE_EN		BIT(3)
+#define ICE_LINK_OVERRIDE_AUTO_LINK_DIS	BIT(4)
+#define ICE_LINK_OVERRIDE_EEE_EN	BIT(5)
+	u8 phy_config;
+#define ICE_LINK_OVERRIDE_PHY_CFG_S	8
+#define ICE_LINK_OVERRIDE_PHY_CFG_M	(0xC3 << ICE_LINK_OVERRIDE_PHY_CFG_S)
+#define ICE_LINK_OVERRIDE_PAUSE_M	0x3
+#define ICE_LINK_OVERRIDE_LESM_EN	BIT(6)
+#define ICE_LINK_OVERRIDE_AUTO_FEC_EN	BIT(7)
+	u8 fec_options;
+#define ICE_LINK_OVERRIDE_FEC_OPT_M	0xFF
+	u8 rsvd1;
+	u64 phy_type_low;
+	u64 phy_type_high;
+};
+
 #define ICE_NVM_VER_LEN	32
 
 /* netlist version information */
@@ -465,6 +488,7 @@ struct ice_dcb_app_priority_table {
 #define ICE_APP_SEL_ETHTYPE	0x1
 #define ICE_APP_SEL_TCPIP	0x2
 #define ICE_CEE_APP_SEL_ETHTYPE	0x0
+#define ICE_SR_LINK_DEFAULT_OVERRIDE_PTR	0x134
 #define ICE_CEE_APP_SEL_TCPIP	0x1
 
 struct ice_dcbx_cfg {
@@ -748,6 +772,17 @@ struct ice_hw_port_stats {
 #define ICE_OROM_VER_MASK		(0xff << ICE_OROM_VER_SHIFT)
 #define ICE_SR_PFA_PTR			0x40
 #define ICE_SR_SECTOR_SIZE_IN_WORDS	0x800
+
+/* Link override related */
+#define ICE_SR_PFA_LINK_OVERRIDE_WORDS		10
+#define ICE_SR_PFA_LINK_OVERRIDE_PHY_WORDS	4
+#define ICE_SR_PFA_LINK_OVERRIDE_OFFSET		2
+#define ICE_SR_PFA_LINK_OVERRIDE_FEC_OFFSET	1
+#define ICE_SR_PFA_LINK_OVERRIDE_PHY_OFFSET	2
+#define ICE_FW_API_LINK_OVERRIDE_MAJ		1
+#define ICE_FW_API_LINK_OVERRIDE_MIN		5
+#define ICE_FW_API_LINK_OVERRIDE_PATCH		2
+
 #define ICE_SR_WORDS_IN_1KB		512
 
 /* Hash redirection LUT for VSI - maximum array size */