[PATCH net-next 01/10] bnxt_en: report signal mode in link up messages
From: Michael Chan <michael.chan@broadcom.com>
Date: 2021-04-24 20:14:45
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Edwin Peer <redacted> Firmware reports link signalling mode for certain speeds. In these cases, print the signalling modes in kernel log link up messages. Reviewed-by: Andy Gospodarek <redacted> Signed-off-by: Edwin Peer <redacted> Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index e15d454e33f0..573c039e6046 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -9075,8 +9075,9 @@ static char *bnxt_report_fec(struct bnxt_link_info *link_info) static void bnxt_report_link(struct bnxt *bp) { if (bp->link_info.link_up) { - const char *duplex; + const char *signal = ""; const char *flow_ctrl; + const char *duplex; u32 speed; u16 fec;
@@ -9098,8 +9099,23 @@ static void bnxt_report_link(struct bnxt *bp) flow_ctrl = "ON - receive"; else flow_ctrl = "none"; - netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s duplex, Flow control: %s\n", - speed, duplex, flow_ctrl); + if (bp->link_info.phy_qcfg_resp.option_flags & + PORT_PHY_QCFG_RESP_OPTION_FLAGS_SIGNAL_MODE_KNOWN) { + u8 sig_mode = bp->link_info.active_fec_sig_mode & + PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK; + switch (sig_mode) { + case PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ: + signal = "(NRZ) "; + break; + case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4: + signal = "(PAM4) "; + break; + default: + break; + } + } + netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s%s duplex, Flow control: %s\n", + speed, signal, duplex, flow_ctrl); if (bp->flags & BNXT_FLAG_EEE_CAP) netdev_info(bp->dev, "EEE is %s\n", bp->eee.eee_active ? "active" :
--
2.18.1
Attachments
- smime.p7s [application/pkcs7-signature] 4209 bytes