netdev - [PATCH net-next v2 1/2] ice: Add EXTTS feature to the feature bitmap

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Date:   Fri, 15 Jul 2022 14:46:41 -0700
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com
Cc:     Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
        netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
        Maciej Machnikowski <maciej.machnikowski@...el.com>,
        Anatolii Gerasymenko <anatolii.gerasymenko@...el.com>,
        Gurucharan <gurucharanx.g@...el.com>
Subject: [PATCH net-next v2 1/2] ice: Add EXTTS feature to the feature bitmap

From: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>

External time stamp sources are supported only on certain devices. Enforce
the right support matrix by adding the ICE_F_PTP_EXTTS bit to the feature
bitmap set.

Co-developed-by: Maciej Machnikowski <maciej.machnikowski@...el.com>
Signed-off-by: Maciej Machnikowski <maciej.machnikowski@...el.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@...el.com>
Tested-by: Gurucharan <gurucharanx.g@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice.h     |  1 +
 drivers/net/ethernet/intel/ice/ice_lib.c |  1 +
 drivers/net/ethernet/intel/ice/ice_ptp.c | 18 +++++++++++++-----
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index 60453b3b8d23..f72c5cc4e035 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -181,6 +181,7 @@
 
 enum ice_feature {
 	ICE_F_DSCP,
+	ICE_F_PTP_EXTTS,
 	ICE_F_SMA_CTRL,
 	ICE_F_GNSS,
 	ICE_F_MAX
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index a6c4be5e5566..bc357dfae306 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -4182,6 +4182,7 @@ void ice_init_feature_support(struct ice_pf *pf)
 	case ICE_DEV_ID_E810C_QSFP:
 	case ICE_DEV_ID_E810C_SFP:
 		ice_set_feature_support(pf, ICE_F_DSCP);
+		ice_set_feature_support(pf, ICE_F_PTP_EXTTS);
 		if (ice_is_e810t(&pf->hw)) {
 			ice_set_feature_support(pf, ICE_F_SMA_CTRL);
 			if (ice_gnss_is_gps_present(&pf->hw))
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index ef9344ef0d8e..29c7a0ccb3c4 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -1900,9 +1900,12 @@ ice_ptp_setup_pins_e810t(struct ice_pf *pf, struct ptp_clock_info *info)
 	}
 
 	info->n_per_out = N_PER_OUT_E810T;
-	info->n_ext_ts = N_EXT_TS_E810;
-	info->n_pins = NUM_PTP_PINS_E810T;
-	info->verify = ice_verify_pin_e810t;
+
+	if (ice_is_feature_supported(pf, ICE_F_PTP_EXTTS)) {
+		info->n_ext_ts = N_EXT_TS_E810;
+		info->n_pins = NUM_PTP_PINS_E810T;
+		info->verify = ice_verify_pin_e810t;
+	}
 
 	/* Complete setup of the SMA pins */
 	ice_ptp_setup_sma_pins_e810t(pf, info);
@@ -1910,11 +1913,16 @@ ice_ptp_setup_pins_e810t(struct ice_pf *pf, struct ptp_clock_info *info)
 
 /**
  * ice_ptp_setup_pins_e810 - Setup PTP pins in sysfs
+ * @pf: pointer to the PF instance
  * @info: PTP clock capabilities
  */
-static void ice_ptp_setup_pins_e810(struct ptp_clock_info *info)
+static void ice_ptp_setup_pins_e810(struct ice_pf *pf, struct ptp_clock_info *info)
 {
 	info->n_per_out = N_PER_OUT_E810;
+
+	if (!ice_is_feature_supported(pf, ICE_F_PTP_EXTTS))
+		return;
+
 	info->n_ext_ts = N_EXT_TS_E810;
 }
 
@@ -1956,7 +1964,7 @@ ice_ptp_set_funcs_e810(struct ice_pf *pf, struct ptp_clock_info *info)
 	if (ice_is_e810t(&pf->hw))
 		ice_ptp_setup_pins_e810t(pf, info);
 	else
-		ice_ptp_setup_pins_e810(info);
+		ice_ptp_setup_pins_e810(pf, info);
 }
 
 /**
-- 
2.35.1