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Message-ID: <20241210142333.320515-3-anton.nadezhdin@intel.com>
Date: Tue, 10 Dec 2024 09:22:06 -0500
From: Anton Nadezhdin <anton.nadezhdin@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
anthony.l.nguyen@...el.com,
przemyslaw.kitszel@...el.com,
richardcochran@...il.com,
Jacob Keller <jacob.e.keller@...el.com>,
Karol Kolacinski <karol.kolacinski@...el.com>,
Milena Olech <milena.olech@...el.com>,
Anton Nadezhdin <anton.nadezhdin@...el.com>
Subject: [PATCH iwl-next v2 2/5] ice: rename TS_LL_READ* macros to REG_LL_PROXY_H_*
From: Jacob Keller <jacob.e.keller@...el.com>
The TS_LL_READ macros are used as part of the low latency Tx timestamp
interface. A future firmware extension will add support for performing PHY
timer updates over this interface. Using TS_LL_READ as the prefix for these
macros will be confusing once the interface is used for other purposes.
Rename the macros, using the prefix REG_LL_PROXY_H, to better clarify that
this is for the low latency interface.
Additionally add macroses for PF_SB_ATQBAH and PF_SB_ATQBAL registers to
better clarify content of this registers as PF_SB_ATQBAH contain low
part of Tx timestamp
Co-developed-by: Karol Kolacinski <karol.kolacinski@...el.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@...el.com>
Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
Reviewed-by: Milena Olech <milena.olech@...el.com>
Signed-off-by: Anton Nadezhdin <anton.nadezhdin@...el.com>
---
drivers/net/ethernet/intel/ice/ice_ptp.c | 14 +++++++-------
drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 14 +++++++-------
drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 13 ++++++++-----
3 files changed, 22 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index d8ed4240f225..3c81d98883c0 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -499,9 +499,9 @@ void ice_ptp_req_tx_single_tstamp(struct ice_ptp_tx *tx, u8 idx)
ice_trace(tx_tstamp_fw_req, tx->tstamps[idx].skb, idx);
/* Write TS index to read to the PF register so the FW can read it */
- wr32(&pf->hw, PF_SB_ATQBAL,
- TS_LL_READ_TS_INTR | FIELD_PREP(TS_LL_READ_TS_IDX, idx) |
- TS_LL_READ_TS);
+ wr32(&pf->hw, REG_LL_PROXY_H,
+ REG_LL_PROXY_H_TS_INTR_ENA | FIELD_PREP(REG_LL_PROXY_H_TS_IDX, idx) |
+ REG_LL_PROXY_H_EXEC);
tx->last_ll_ts_idx_read = idx;
}
@@ -528,20 +528,20 @@ void ice_ptp_complete_tx_single_tstamp(struct ice_ptp_tx *tx)
ice_trace(tx_tstamp_fw_done, tx->tstamps[idx].skb, idx);
- val = rd32(&pf->hw, PF_SB_ATQBAL);
+ val = rd32(&pf->hw, REG_LL_PROXY_H);
/* When the bit is cleared, the TS is ready in the register */
- if (val & TS_LL_READ_TS) {
+ if (val & REG_LL_PROXY_H_EXEC) {
dev_err(ice_pf_to_dev(pf), "Failed to get the Tx tstamp - FW not ready");
return;
}
/* High 8 bit value of the TS is on the bits 16:23 */
- raw_tstamp = FIELD_GET(TS_LL_READ_TS_HIGH, val);
+ raw_tstamp = FIELD_GET(REG_LL_PROXY_H_TS_HIGH, val);
raw_tstamp <<= 32;
/* Read the low 32 bit value */
- raw_tstamp |= (u64)rd32(&pf->hw, PF_SB_ATQBAH);
+ raw_tstamp |= (u64)rd32(&pf->hw, REG_LL_PROXY_L);
/* Devices using this interface always verify the timestamp differs
* relative to the last cached timestamp value.
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index 8e11a97601fe..136213aed47c 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -4871,23 +4871,23 @@ ice_read_phy_tstamp_ll_e810(struct ice_hw *hw, u8 idx, u8 *hi, u32 *lo)
int err;
/* Write TS index to read to the PF register so the FW can read it */
- val = FIELD_PREP(TS_LL_READ_TS_IDX, idx) | TS_LL_READ_TS;
- wr32(hw, PF_SB_ATQBAL, val);
+ val = FIELD_PREP(REG_LL_PROXY_H_TS_IDX, idx) | REG_LL_PROXY_H_EXEC;
+ wr32(hw, REG_LL_PROXY_H, val);
/* Read the register repeatedly until the FW provides us the TS */
- err = rd32_poll_timeout_atomic(hw, PF_SB_ATQBAL, val,
- !FIELD_GET(TS_LL_READ_TS, val),
- 10, TS_LL_READ_TIMEOUT);
+ err = rd32_poll_timeout_atomic(hw, REG_LL_PROXY_H, val,
+ !FIELD_GET(REG_LL_PROXY_H_EXEC, val),
+ 10, REG_LL_PROXY_H_TIMEOUT_US);
if (err) {
ice_debug(hw, ICE_DBG_PTP, "Failed to read PTP timestamp using low latency read\n");
return err;
}
/* High 8 bit value of the TS is on the bits 16:23 */
- *hi = FIELD_GET(TS_LL_READ_TS_HIGH, val);
+ *hi = FIELD_GET(REG_LL_PROXY_H_TS_HIGH, val);
/* Read the low 32 bit value and set the TS valid bit */
- *lo = rd32(hw, PF_SB_ATQBAH) | TS_VALID;
+ *lo = rd32(hw, REG_LL_PROXY_L) | TS_VALID;
return 0;
}
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
index 4c059e2f4d96..71097eb67d54 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
@@ -694,11 +694,14 @@ static inline bool ice_is_dual(struct ice_hw *hw)
#define BYTES_PER_IDX_ADDR_L 4
/* Tx timestamp low latency read definitions */
-#define TS_LL_READ_TIMEOUT 2000
-#define TS_LL_READ_TS_HIGH GENMASK(23, 16)
-#define TS_LL_READ_TS_IDX GENMASK(29, 24)
-#define TS_LL_READ_TS_INTR BIT(30)
-#define TS_LL_READ_TS BIT(31)
+#define REG_LL_PROXY_H_TIMEOUT_US 2000
+#define REG_LL_PROXY_H_TS_HIGH GENMASK(23, 16)
+#define REG_LL_PROXY_H_TS_IDX GENMASK(29, 24)
+#define REG_LL_PROXY_H_TS_INTR_ENA BIT(30)
+#define REG_LL_PROXY_H_EXEC BIT(31)
+
+#define REG_LL_PROXY_L PF_SB_ATQBAH
+#define REG_LL_PROXY_H PF_SB_ATQBAL
/* Internal PHY timestamp address */
#define TS_L(a, idx) ((a) + ((idx) * BYTES_PER_IDX_ADDR_L_U))
--
2.42.0
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