[PATCH v3 021/129] net/ice/base: add LL Tx timestamp interrupt read

[Anatoly Burakov]

From: Karol Kolacinski <karol.kolacinski at intel.com>

E810 products can support low latency Tx timestamp register read using the SW
interrupt from the FW. Add a check for the device capability and use the new
method if supported.

Signed-off-by: Karol Kolacinski <karol.kolacinski at intel.com>
Signed-off-by: Ian Stokes <ian.stokes at intel.com>
---
 drivers/net/ice/base/ice_common.c | 3 +++
 drivers/net/ice/base/ice_ptp_hw.h | 1 +
 drivers/net/ice/base/ice_type.h   | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/drivers/net/ice/base/ice_common.c b/drivers/net/ice/base/ice_common.c
index ef6696cddf..b68afdaa14 100644
--- a/drivers/net/ice/base/ice_common.c
+++ b/drivers/net/ice/base/ice_common.c
@@ -2781,6 +2781,7 @@ ice_parse_1588_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
 	info->tmr1_ena = ((number & ICE_TS_TMR1_ENA_M) != 0);
 
 	info->ts_ll_read = ((number & ICE_TS_LL_TX_TS_READ_M) != 0);
+	info->ts_ll_int_read = ((number & ICE_TS_LL_TX_TS_INT_READ_M) != 0);
 
 	info->tmr_own_map = phys_id;
 
@@ -2800,6 +2801,8 @@ ice_parse_1588_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
 		  info->tmr1_ena);
 	ice_debug(hw, ICE_DBG_INIT, "dev caps: ts_ll_read = %u\n",
 		  info->ts_ll_read);
+	ice_debug(hw, ICE_DBG_INIT, "dev caps: ts_ll_int_read = %u\n",
+		  info->ts_ll_int_read);
 	ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr_own_map = %u\n",
 		  info->tmr_own_map);
 }
diff --git a/drivers/net/ice/base/ice_ptp_hw.h b/drivers/net/ice/base/ice_ptp_hw.h
index 35ab9bb3e8..441ad0b77d 100644
--- a/drivers/net/ice/base/ice_ptp_hw.h
+++ b/drivers/net/ice/base/ice_ptp_hw.h
@@ -489,6 +489,7 @@ int ice_ptp_init_phy_cfg(struct ice_hw *hw);
 
 /* Tx timestamp low latency read definitions */
 #define TS_LL_READ_RETRIES		200
+#define TS_LL_READ_TS_INTR		BIT(30)
 #define TS_LL_READ_TS			BIT(31)
 #define TS_LL_READ_TS_IDX_S		24
 #define TS_LL_READ_TS_IDX_M		MAKEMASK(0x3F, 0)
diff --git a/drivers/net/ice/base/ice_type.h b/drivers/net/ice/base/ice_type.h
index 239b1a018e..7a1471e474 100644
--- a/drivers/net/ice/base/ice_type.h
+++ b/drivers/net/ice/base/ice_type.h
@@ -778,6 +778,7 @@ struct ice_ts_func_info {
 #define ICE_TS_TMR0_ENA_M		BIT(25)
 #define ICE_TS_TMR1_ENA_M		BIT(26)
 #define ICE_TS_LL_TX_TS_READ_M		BIT(28)
+#define ICE_TS_LL_TX_TS_INT_READ_M	BIT(29)
 
 struct ice_ts_dev_info {
 	/* Device specific info */
@@ -790,6 +791,7 @@ struct ice_ts_dev_info {
 	u8 tmr0_ena : 1;
 	u8 tmr1_ena : 1;
 	u8 ts_ll_read : 1;
+	u8 ts_ll_int_read : 1;
 };
 
 #define ICE_NAC_TOPO_PRIMARY_M	BIT(0)
-- 
2.43.0