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authorErni Sri Satya Vennela <ernis@linux.microsoft.com>2025-06-17 00:17:35 -0700
committerPaolo Abeni <pabeni@redhat.com>2025-06-19 15:13:49 +0200
commita6d5edf11e0cf5a4650f1d353d20ec29de093813 (patch)
tree9151b201a67541a301fea8b0ecbafb99f53dba96
parent75cabb46935b6de8e2bdfde563e460ac41cfff12 (diff)
net: mana: Add speed support in mana_get_link_ksettings
Allow mana ethtool get_link_ksettings operation to report the maximum speed supported by the SKU in mbps. The driver retrieves this information by issuing a HWC command to the hardware via mana_query_link_cfg(), which retrieves the SKU's maximum supported speed. These APIs when invoked on hardware that are older/do not support these APIs, the speed would be reported as UNKNOWN. Before: $ethtool enP30832s1 > Settings for enP30832s1: Supported ports: [ ] Supported link modes: Not reported Supported pause frame use: No Supports auto-negotiation: No Supported FEC modes: Not reported Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Advertised FEC modes: Not reported Speed: Unknown! Duplex: Full Auto-negotiation: off Port: Other PHYAD: 0 Transceiver: internal Link detected: yes After: $ethtool enP30832s1 > Settings for enP30832s1: Supported ports: [ ] Supported link modes: Not reported Supported pause frame use: No Supports auto-negotiation: No Supported FEC modes: Not reported Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Advertised FEC modes: Not reported Speed: 16000Mb/s Duplex: Full Auto-negotiation: off Port: Other PHYAD: 0 Transceiver: internal Link detected: yes Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Saurabh Singh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Link: https://patch.msgid.link/1750144656-2021-4-git-send-email-ernis@linux.microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-rw-r--r--drivers/net/ethernet/microsoft/mana/mana_en.c1
-rw-r--r--drivers/net/ethernet/microsoft/mana/mana_ethtool.c6
-rw-r--r--include/net/mana/mana.h2
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 547dff450b6d..d7079e05dfb8 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
@@ -1272,6 +1272,7 @@ int mana_query_link_cfg(struct mana_port_context *apc)
return err;
}
apc->speed = resp.link_speed_mbps;
+ apc->max_speed = resp.qos_speed_mbps;
return 0;
}
diff --git a/drivers/net/ethernet/microsoft/mana/mana_ethtool.c b/drivers/net/ethernet/microsoft/mana/mana_ethtool.c
index 4fb3a04994a2..a1afa75a9463 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_ethtool.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_ethtool.c
@@ -495,6 +495,12 @@ out:
static int mana_get_link_ksettings(struct net_device *ndev,
struct ethtool_link_ksettings *cmd)
{
+ struct mana_port_context *apc = netdev_priv(ndev);
+ int err;
+
+ err = mana_query_link_cfg(apc);
+ cmd->base.speed = (err) ? SPEED_UNKNOWN : apc->max_speed;
+
cmd->base.duplex = DUPLEX_FULL;
cmd->base.port = PORT_OTHER;
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
index 038b18340e51..e1030a7d2daa 100644
--- a/include/net/mana/mana.h
+++ b/include/net/mana/mana.h
@@ -533,6 +533,8 @@ struct mana_port_context {
u16 port_idx;
/* Currently configured speed (mbps) */
u32 speed;
+ /* Maximum speed supported by the SKU (mbps) */
+ u32 max_speed;
bool port_is_up;
bool port_st_save; /* Saved port state */