netdev - [PATCH net-next 3/6] ice: Add ice_get_link_status

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Date: Wed, 25 Oct 2023 14:41:54 -0700
From: Jacob Keller <jacob.e.keller@...el.com>
To: netdev@...r.kernel.org,
	David Miller <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>
Cc: Paul Greenwalt <paul.greenwalt@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Pawel Chmielewski <pawel.chmielewski@...el.com>,
	Simon Horman <horms@...nel.org>,
	Tony Brelinski <tony.brelinski@...el.com>,
	Jacob Keller <jacob.e.keller@...el.com>
Subject: [PATCH net-next 3/6] ice: Add ice_get_link_status_datalen

From: Paul Greenwalt <paul.greenwalt@...el.com>

The Get Link Status data length can vary with different versions of
ice_aqc_get_link_status_data. Add ice_get_link_status_datalen() to return
datalen for the specific ice_aqc_get_link_status_data version.
Add new link partner fields to ice_aqc_get_link_status_data; PHY type,
FEC, and flow control.

Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
Co-developed-by: Pawel Chmielewski <pawel.chmielewski@...el.com>
Signed-off-by: Pawel Chmielewski <pawel.chmielewski@...el.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Signed-off-by: Paul Greenwalt <paul.greenwalt@...el.com>
Tested-by: Tony Brelinski <tony.brelinski@...el.com>
Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
---
 .../net/ethernet/intel/ice/ice_adminq_cmd.h   | 37 +++++++++++++++++--
 drivers/net/ethernet/intel/ice/ice_common.c   | 22 ++++++++++-
 2 files changed, 53 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index ee9acd19505d..d7fdb7ba7268 100644
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -1329,10 +1329,39 @@ struct ice_aqc_get_link_status_data {
 #define ICE_AQ_LINK_SPEED_100GB		BIT(10)
 #define ICE_AQ_LINK_SPEED_200GB		BIT(11)
 #define ICE_AQ_LINK_SPEED_UNKNOWN	BIT(15)
-	__le32 reserved3; /* Aligns next field to 8-byte boundary */
-	__le64 phy_type_low; /* Use values from ICE_PHY_TYPE_LOW_* */
-	__le64 phy_type_high; /* Use values from ICE_PHY_TYPE_HIGH_* */
-};
+	/* Aligns next field to 8-byte boundary */
+	__le16 reserved3;
+	u8 ext_fec_status;
+	/* RS 272 FEC enabled */
+#define ICE_AQ_LINK_RS_272_FEC_EN      BIT(0)
+	u8 reserved4;
+	/* Use values from ICE_PHY_TYPE_LOW_* */
+	__le64 phy_type_low;
+	/* Use values from ICE_PHY_TYPE_HIGH_* */
+	__le64 phy_type_high;
+#define ICE_AQC_LS_DATA_SIZE_V1 \
+	offsetofend(struct ice_aqc_get_link_status_data, phy_type_high)
+	/* Get link status v2 link partner data */
+	__le64 lp_phy_type_low;
+	__le64 lp_phy_type_high;
+	u8 lp_fec_adv;
+#define ICE_AQ_LINK_LP_10G_KR_FEC_CAP  BIT(0)
+#define ICE_AQ_LINK_LP_25G_KR_FEC_CAP  BIT(1)
+#define ICE_AQ_LINK_LP_RS_528_FEC_CAP  BIT(2)
+#define ICE_AQ_LINK_LP_50G_KR_272_FEC_CAP BIT(3)
+#define ICE_AQ_LINK_LP_100G_KR_272_FEC_CAP BIT(4)
+#define ICE_AQ_LINK_LP_200G_KR_272_FEC_CAP BIT(5)
+	u8 lp_fec_req;
+#define ICE_AQ_LINK_LP_10G_KR_FEC_REQ  BIT(0)
+#define ICE_AQ_LINK_LP_25G_KR_FEC_REQ  BIT(1)
+#define ICE_AQ_LINK_LP_RS_528_FEC_REQ  BIT(2)
+#define ICE_AQ_LINK_LP_KR_272_FEC_REQ  BIT(3)
+	u8 lp_flowcontrol;
+#define ICE_AQ_LINK_LP_PAUSE_ADV       BIT(0)
+#define ICE_AQ_LINK_LP_ASM_DIR_ADV     BIT(1)
+#define ICE_AQC_LS_DATA_SIZE_V2 \
+	offsetofend(struct ice_aqc_get_link_status_data, lp_flowcontrol)
+} __packed;
 
 /* Set event mask command (direct 0x0613) */
 struct ice_aqc_set_event_mask {
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 4875d59f27f2..9a6c25f98632 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -651,6 +651,24 @@ static enum ice_media_type ice_get_media_type(struct ice_port_info *pi)
 	return ICE_MEDIA_UNKNOWN;
 }
 
+/**
+ * ice_get_link_status_datalen
+ * @hw: pointer to the HW struct
+ *
+ * Returns datalength for the Get Link Status AQ command, which is bigger for
+ * newer adapter families handled by ice driver.
+ */
+static u16 ice_get_link_status_datalen(struct ice_hw *hw)
+{
+	switch (hw->mac_type) {
+	case ICE_MAC_E830:
+		return ICE_AQC_LS_DATA_SIZE_V2;
+	case ICE_MAC_E810:
+	default:
+		return ICE_AQC_LS_DATA_SIZE_V1;
+	}
+}
+
 /**
  * ice_aq_get_link_info
  * @pi: port information structure
@@ -689,8 +707,8 @@ ice_aq_get_link_info(struct ice_port_info *pi, bool ena_lse,
 	resp->cmd_flags = cpu_to_le16(cmd_flags);
 	resp->lport_num = pi->lport;
 
-	status = ice_aq_send_cmd(hw, &desc, &link_data, sizeof(link_data), cd);
-
+	status = ice_aq_send_cmd(hw, &desc, &link_data,
+				 ice_get_link_status_datalen(hw), cd);
 	if (status)
 		return status;
 
-- 
2.41.0