netdev - [PATCH net-next 09/11] bnxt_en: Report Active FEC encoding during link up.

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Date:   Sun, 27 Sep 2020 13:42:18 -0400
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, kuba@...nel.org
Subject: [PATCH net-next 09/11] bnxt_en: Report Active FEC encoding during link up.

The current code is reporting the FEC configured settings during link up.
Change it to report the more useful active FEC encoding that may be
negotiated or auto detected.

Reviewed-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 29 ++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index ab3b36deaf66..834f64f5f4d6 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8737,6 +8737,30 @@ void bnxt_tx_enable(struct bnxt *bp)
 		netif_carrier_on(bp->dev);
 }
 
+static char *bnxt_report_fec(struct bnxt_link_info *link_info)
+{
+	u8 active_fec = link_info->active_fec_sig_mode &
+			PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK;
+
+	switch (active_fec) {
+	default:
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE:
+		return "None";
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE:
+		return "Clause 74 BaseR";
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE:
+		return "Clause 91 RS(528,514)";
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE:
+		return "Clause 91 RS544_1XN";
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE:
+		return "Clause 91 RS(544,514)";
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE:
+		return "Clause 91 RS272_1XN";
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE:
+		return "Clause 91 RS(272,257)";
+	}
+}
+
 static void bnxt_report_link(struct bnxt *bp)
 {
 	if (bp->link_info.link_up) {
@@ -8767,10 +8791,9 @@ static void bnxt_report_link(struct bnxt *bp)
 							 "not active");
 		fec = bp->link_info.fec_cfg;
 		if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED))
-			netdev_info(bp->dev, "FEC autoneg %s encodings: %s\n",
+			netdev_info(bp->dev, "FEC autoneg %s encoding: %s\n",
 				    (fec & BNXT_FEC_AUTONEG) ? "on" : "off",
-				    (fec & BNXT_FEC_ENC_BASE_R) ? "BaseR" :
-				     (fec & BNXT_FEC_ENC_RS) ? "RS" : "None");
+				    bnxt_report_fec(&bp->link_info));
 	} else {
 		netif_carrier_off(bp->dev);
 		netdev_err(bp->dev, "NIC Link is Down\n");
-- 
2.18.1


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