[PATCH v2] net/ice: fix incorrect Rx timestamp

[Simei Su]

For E822, the time value in Rx Flex Descriptors is 0 due to the
missing PHY clock timer setup. Also, the source clock index in use
is based on device capabilities instead of always being zero.

Fixes: 953e74e6b73a ("net/ice: enable Rx timestamp on flex descriptor")
Fixes: 646dcbe6c701 ("net/ice: support IEEE 1588 PTP")
Fixes: fb800fde66f4 ("net/ice/base: work around missing PTP capabilities")
Cc: stable at dpdk.org

Signed-off-by: Simei Su <simei.su at intel.com>
---
v2:
* Refine commit title and commit log.
* Remove duplicate code.
* Rework share code for "SIMICS_SUPPORT".

 drivers/net/ice/base/ice_common.c |  4 +---
 drivers/net/ice/ice_ethdev.c      | 36 ++++++++++++++++++++++--------------
 drivers/net/ice/ice_rxtx.h        | 11 ++++++-----
 3 files changed, 29 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ice/base/ice_common.c b/drivers/net/ice/base/ice_common.c
index 5391bd6..1a02aad 100644
--- a/drivers/net/ice/base/ice_common.c
+++ b/drivers/net/ice/base/ice_common.c
@@ -2554,9 +2554,7 @@ ice_parse_1588_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p,
 			 struct ice_aqc_list_caps_elem *cap)
 {
 	struct ice_ts_func_info *info = &func_p->ts_func_info;
-	u32 number = ICE_TS_FUNC_ENA_M | ICE_TS_SRC_TMR_OWND_M |
-		     ICE_TS_TMR_ENA_M | ICE_TS_TMR_IDX_OWND_M |
-		     ICE_TS_TMR_IDX_ASSOC_M;
+	u32 number = LE32_TO_CPU(cap->number);
 	u8 clk_freq;
 
 	ice_debug(hw, ICE_DBG_INIT, "1588 func caps: raw value %x\n", number);
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 0d011bb..9a88cf9 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2413,6 +2413,17 @@ ice_dev_init(struct rte_eth_dev *dev)
 	/* Initialize TM configuration */
 	ice_tm_conf_init(dev);
 
+	if (ice_is_e810(hw))
+		hw->phy_cfg = ICE_PHY_E810;
+	else
+		hw->phy_cfg = ICE_PHY_E822;
+
+	if (hw->phy_cfg == ICE_PHY_E822) {
+		ret = ice_start_phy_timer_e822(hw, hw->pf_id, true);
+		if (ret)
+			PMD_INIT_LOG(ERR, "Failed to start phy timer\n");
+	}
+
 	if (!ad->is_safe_mode) {
 		ret = ice_flow_init(ad);
 		if (ret) {
@@ -5814,11 +5825,6 @@ ice_timesync_enable(struct rte_eth_dev *dev)
 		return -1;
 	}
 
-	if (ice_is_e810(hw))
-		hw->phy_cfg = ICE_PHY_E810;
-	else
-		hw->phy_cfg = ICE_PHY_E822;
-
 	if (hw->func_caps.ts_func_info.src_tmr_owned) {
 		ret = ice_ptp_init_phc(hw);
 		if (ret) {
@@ -5939,16 +5945,17 @@ ice_timesync_read_time(struct rte_eth_dev *dev, struct timespec *ts)
 	struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ice_adapter *ad =
 			ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	uint8_t tmr_idx = hw->func_caps.ts_func_info.tmr_index_assoc;
 	uint32_t hi, lo, lo2;
 	uint64_t time, ns;
 
-	lo = ICE_READ_REG(hw, GLTSYN_TIME_L(0));
-	hi = ICE_READ_REG(hw, GLTSYN_TIME_H(0));
-	lo2 = ICE_READ_REG(hw, GLTSYN_TIME_L(0));
+	lo = ICE_READ_REG(hw, GLTSYN_TIME_L(tmr_idx));
+	hi = ICE_READ_REG(hw, GLTSYN_TIME_H(tmr_idx));
+	lo2 = ICE_READ_REG(hw, GLTSYN_TIME_L(tmr_idx));
 
 	if (lo2 < lo) {
-		lo = ICE_READ_REG(hw, GLTSYN_TIME_L(0));
-		hi = ICE_READ_REG(hw, GLTSYN_TIME_H(0));
+		lo = ICE_READ_REG(hw, GLTSYN_TIME_L(tmr_idx));
+		hi = ICE_READ_REG(hw, GLTSYN_TIME_H(tmr_idx));
 	}
 
 	time = ((uint64_t)hi << 32) | lo;
@@ -5964,6 +5971,7 @@ ice_timesync_disable(struct rte_eth_dev *dev)
 	struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ice_adapter *ad =
 			ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	uint8_t tmr_idx = hw->func_caps.ts_func_info.tmr_index_assoc;
 	uint64_t val;
 	uint8_t lport;
 
@@ -5971,12 +5979,12 @@ ice_timesync_disable(struct rte_eth_dev *dev)
 
 	ice_clear_phy_tstamp(hw, lport, 0);
 
-	val = ICE_READ_REG(hw, GLTSYN_ENA(0));
+	val = ICE_READ_REG(hw, GLTSYN_ENA(tmr_idx));
 	val &= ~GLTSYN_ENA_TSYN_ENA_M;
-	ICE_WRITE_REG(hw, GLTSYN_ENA(0), val);
+	ICE_WRITE_REG(hw, GLTSYN_ENA(tmr_idx), val);
 
-	ICE_WRITE_REG(hw, GLTSYN_INCVAL_L(0), 0);
-	ICE_WRITE_REG(hw, GLTSYN_INCVAL_H(0), 0);
+	ICE_WRITE_REG(hw, GLTSYN_INCVAL_L(tmr_idx), 0);
+	ICE_WRITE_REG(hw, GLTSYN_INCVAL_H(tmr_idx), 0);
 
 	ad->ptp_ena = 0;
 
diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h
index 4947d5c..94f6bcf 100644
--- a/drivers/net/ice/ice_rxtx.h
+++ b/drivers/net/ice/ice_rxtx.h
@@ -349,26 +349,27 @@ static inline
 uint64_t ice_tstamp_convert_32b_64b(struct ice_hw *hw, struct ice_adapter *ad,
 				    uint32_t flag, uint32_t in_timestamp)
 {
+	uint8_t tmr_idx = hw->func_caps.ts_func_info.tmr_index_assoc;
 	const uint64_t mask = 0xFFFFFFFF;
 	uint32_t hi, lo, lo2, delta;
 	uint64_t ns;
 
 	if (flag) {
-		lo = ICE_READ_REG(hw, GLTSYN_TIME_L(0));
-		hi = ICE_READ_REG(hw, GLTSYN_TIME_H(0));
+		lo = ICE_READ_REG(hw, GLTSYN_TIME_L(tmr_idx));
+		hi = ICE_READ_REG(hw, GLTSYN_TIME_H(tmr_idx));
 
 		/*
 		 * On typical system, the delta between lo and lo2 is ~1000ns,
 		 * so 10000 seems a large-enough but not overly-big guard band.
 		 */
 		if (lo > (UINT32_MAX - ICE_TIMESYNC_REG_WRAP_GUARD_BAND))
-			lo2 = ICE_READ_REG(hw, GLTSYN_TIME_L(0));
+			lo2 = ICE_READ_REG(hw, GLTSYN_TIME_L(tmr_idx));
 		else
 			lo2 = lo;
 
 		if (lo2 < lo) {
-			lo = ICE_READ_REG(hw, GLTSYN_TIME_L(0));
-			hi = ICE_READ_REG(hw, GLTSYN_TIME_H(0));
+			lo = ICE_READ_REG(hw, GLTSYN_TIME_L(tmr_idx));
+			hi = ICE_READ_REG(hw, GLTSYN_TIME_H(tmr_idx));
 		}
 
 		ad->time_hw = ((uint64_t)hi << 32) | lo;
-- 
2.9.5