diff mbox series

[net-next,5/7] octeontx2-af: advertised link modes support on cgx

Message ID 1611215609-92301-6-git-send-email-hkelam@marvell.com
State Superseded
Headers show
Series ethtool support for fec and link configuration | expand

Commit Message

Hariprasad Kelam Jan. 21, 2021, 7:53 a.m. UTC 
From: Christina Jacob <cjacob@marvell.com>

CGX supports setting advertised link modes on physical link.
This patch adds support to derive cgx mode from ethtool
link mode and pass it to firmware to configure the same.

Signed-off-by: Christina Jacob <cjacob@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/cgx.c    | 110 ++++++++++++++++++++-
 .../net/ethernet/marvell/octeontx2/af/cgx_fw_if.h  |  32 +++++-
 drivers/net/ethernet/marvell/octeontx2/af/mbox.h   |   3 +-
 3 files changed, 142 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
index 42ee67e..cc90a0b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
@@ -14,6 +14,7 @@ 
 #include <linux/pci.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
+#include <linux/ethtool.h>
 #include <linux/phy.h>
 #include <linux/of.h>
 #include <linux/of_mdio.h>
@@ -644,6 +645,7 @@  static inline void cgx_link_usertable_init(void)
 	cgx_speed_mbps[CGX_LINK_25G] = 25000;
 	cgx_speed_mbps[CGX_LINK_40G] = 40000;
 	cgx_speed_mbps[CGX_LINK_50G] = 50000;
+	cgx_speed_mbps[CGX_LINK_80G] = 80000;
 	cgx_speed_mbps[CGX_LINK_100G] = 100000;
 
 	cgx_lmactype_string[LMAC_MODE_SGMII] = "SGMII";
@@ -691,6 +693,107 @@  static inline int cgx_link_usertable_index_map(int speed)
 	return CGX_LINK_NONE;
 }
 
+static void set_mod_args(struct cgx_set_link_mode_args *args,
+			 u32 speed, u8 duplex, u8 autoneg, u64 mode)
+{
+	if (args->duplex == DUPLEX_UNKNOWN)
+		args->duplex = duplex;
+	if (args->speed == SPEED_UNKNOWN)
+		args->speed = speed;
+	if (args->an == AUTONEG_UNKNOWN)
+		args->an = autoneg;
+	args->mode = mode;
+	args->ports = 0;
+}
+
+static void otx2_map_ethtool_link_modes(u64 bitmask,
+					struct cgx_set_link_mode_args *args)
+{
+	switch (bitmask) {
+	case BIT_ULL(ETHTOOL_LINK_MODE_10baseT_Half_BIT):
+		set_mod_args(args, 10, 1, 1, BIT_ULL(CGX_MODE_SGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_10baseT_Full_BIT):
+		set_mod_args(args, 10, 0, 1, BIT_ULL(CGX_MODE_SGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_100baseT_Half_BIT):
+		set_mod_args(args, 100, 1, 1, BIT_ULL(CGX_MODE_SGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_100baseT_Full_BIT):
+		set_mod_args(args, 100, 0, 1, BIT_ULL(CGX_MODE_SGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_1000baseT_Half_BIT):
+		set_mod_args(args, 1000, 1, 1, BIT_ULL(CGX_MODE_SGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_1000baseT_Full_BIT):
+		set_mod_args(args, 1000, 0, 1, BIT_ULL(CGX_MODE_SGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_1000baseX_Full_BIT):
+		set_mod_args(args, 1000, 0, 0, BIT_ULL(CGX_MODE_1000_BASEX));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_10000baseT_Full_BIT):
+		set_mod_args(args, 1000, 0, 1, BIT_ULL(CGX_MODE_QSGMII));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_10000baseSR_Full_BIT):
+		set_mod_args(args, 10000, 0, 0, BIT_ULL(CGX_MODE_10G_C2C));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_10000baseLR_Full_BIT):
+		set_mod_args(args, 10000, 0, 0, BIT_ULL(CGX_MODE_10G_C2M));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT):
+		set_mod_args(args, 10000, 0, 1, BIT_ULL(CGX_MODE_10G_KR));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_25000baseSR_Full_BIT):
+		set_mod_args(args, 25000, 0, 0, BIT_ULL(CGX_MODE_25G_C2C));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT):
+		set_mod_args(args, 25000, 0, 1, BIT_ULL(CGX_MODE_25G_CR));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT):
+		set_mod_args(args, 25000, 0, 1, BIT_ULL(CGX_MODE_25G_KR));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT):
+		set_mod_args(args, 40000, 0, 0, BIT_ULL(CGX_MODE_40G_C2C));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT):
+		set_mod_args(args, 40000, 0, 0, BIT_ULL(CGX_MODE_40G_C2M));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT):
+		set_mod_args(args, 40000, 0, 1, BIT_ULL(CGX_MODE_40G_CR4));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT):
+		set_mod_args(args, 40000, 0, 1, BIT_ULL(CGX_MODE_40G_KR4));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_50000baseSR_Full_BIT):
+		set_mod_args(args, 50000, 0, 0, BIT_ULL(CGX_MODE_50G_C2C));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT):
+		set_mod_args(args, 50000, 0, 0, BIT_ULL(CGX_MODE_50G_C2M));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_50000baseCR_Full_BIT):
+		set_mod_args(args, 50000, 0, 1, BIT_ULL(CGX_MODE_50G_CR));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_50000baseKR_Full_BIT):
+		set_mod_args(args, 50000, 0, 1, BIT_ULL(CGX_MODE_50G_KR));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT):
+		set_mod_args(args, 100000, 0, 0, BIT_ULL(CGX_MODE_100G_C2C));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT):
+		set_mod_args(args, 100000, 0, 0, BIT_ULL(CGX_MODE_100G_C2M));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT):
+		set_mod_args(args, 100000, 0, 1, BIT_ULL(CGX_MODE_100G_CR4));
+		break;
+	case  BIT_ULL(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT):
+		set_mod_args(args, 100000, 0, 1, BIT_ULL(CGX_MODE_100G_KR4));
+		break;
+	default:
+		set_mod_args(args, 0, 1, 0, BIT_ULL(CGX_MODE_MAX));
+		break;
+	}
+}
+
 static inline void link_status_user_format(u64 lstat,
 					   struct cgx_link_user_info *linfo,
 					   struct cgx *cgx, u8 lmac_id)
@@ -886,13 +989,18 @@  int cgx_set_link_mode(void *cgxd, struct cgx_set_link_mode_args args,
 	if (!cgx)
 		return -ENODEV;
 
+	if (args.mode)
+		otx2_map_ethtool_link_modes(args.mode, &args);
+	if (!args.speed && args.duplex && !args.an)
+		return -EINVAL;
+
 	req = FIELD_SET(CMDREG_ID, CGX_CMD_MODE_CHANGE, req);
 	req = FIELD_SET(CMDMODECHANGE_SPEED,
 			cgx_link_usertable_index_map(args.speed), req);
 	req = FIELD_SET(CMDMODECHANGE_DUPLEX, args.duplex, req);
 	req = FIELD_SET(CMDMODECHANGE_AN, args.an, req);
 	req = FIELD_SET(CMDMODECHANGE_PORT, args.ports, req);
-	req = FIELD_SET(CMDMODECHANGE_FLAGS, args.flags, req);
+	req = FIELD_SET(CMDMODECHANGE_FLAGS, args.mode, req);
 	err = cgx_fwi_cmd_generic(req, &resp, cgx, lmac_id);
 	return err;
 }
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h
index 70610e7..dde2bd0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h
@@ -70,6 +70,36 @@  enum cgx_link_speed {
 	CGX_LINK_SPEED_MAX,
 };
 
+enum CGX_MODE_ {
+	CGX_MODE_SGMII,
+	CGX_MODE_1000_BASEX,
+	CGX_MODE_QSGMII,
+	CGX_MODE_10G_C2C,
+	CGX_MODE_10G_C2M,
+	CGX_MODE_10G_KR,
+	CGX_MODE_20G_C2C,
+	CGX_MODE_25G_C2C,
+	CGX_MODE_25G_C2M,
+	CGX_MODE_25G_2_C2C,
+	CGX_MODE_25G_CR,
+	CGX_MODE_25G_KR,
+	CGX_MODE_40G_C2C,
+	CGX_MODE_40G_C2M,
+	CGX_MODE_40G_CR4,
+	CGX_MODE_40G_KR4,
+	CGX_MODE_40GAUI_C2C,
+	CGX_MODE_50G_C2C,
+	CGX_MODE_50G_C2M,
+	CGX_MODE_50G_4_C2C,
+	CGX_MODE_50G_CR,
+	CGX_MODE_50G_KR,
+	CGX_MODE_80GAUI_C2C,
+	CGX_MODE_100G_C2C,
+	CGX_MODE_100G_C2M,
+	CGX_MODE_100G_CR4,
+	CGX_MODE_100G_KR4,
+	CGX_MODE_MAX /* = 29 */
+};
 /* REQUEST ID types. Input to firmware */
 enum cgx_cmd_id {
 	CGX_CMD_NONE,
@@ -231,6 +261,6 @@  struct cgx_lnk_sts {
 #define CMDMODECHANGE_DUPLEX		GENMASK_ULL(12, 12)
 #define CMDMODECHANGE_AN		GENMASK_ULL(13, 13)
 #define CMDMODECHANGE_PORT		GENMASK_ULL(21, 14)
-#define CMDMODECHANGE_FLAGS		GENMASK_ULL(29, 22)
+#define CMDMODECHANGE_FLAGS		GENMASK_ULL(63, 22)
 
 #endif /* __CGX_FW_INTF_H__ */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 7a90989..aa76479 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -462,10 +462,11 @@  struct cgx_set_link_mode_args {
 	u8 duplex;
 	u8 an;
 	u8 ports;
-	u8 flags;
+	u64 mode;
 };
 
 struct cgx_set_link_mode_req {
+#define AUTONEG_UNKNOWN		0xff
 	struct mbox_msghdr hdr;
 	struct cgx_set_link_mode_args args;
 };