diff mbox series

[net-next,4/6] ice: Re-enable timestamping correctly after reset

Message ID 20231201180845.219494-5-anthony.l.nguyen@intel.com (mailing list archive)
State Accepted
Commit 1cc5b6eaad92d69fe4d84bbee5c12ee297d56296
Delegated to: Netdev Maintainers
Headers show
Series Intel Wired LAN Driver Updates 2023-12-01 (ice) | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1115 this patch: 1115
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1142 this patch: 1142
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 53 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Tony Nguyen Dec. 1, 2023, 6:08 p.m. UTC 
From: Karol Kolacinski <karol.kolacinski@intel.com>

During reset, TX_TSYN interrupt should be processed as it may process
timestamps in brief moments before and after reset.
Timestamping should be enabled on VSIs at the end of reset procedure.
On ice_get_phy_tx_tstamp_ready error, interrupt should not be rearmed
because error only happens on resets.

Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_main.c |  2 +-
 drivers/net/ethernet/intel/ice/ice_ptp.c  | 19 ++++++++++---------
 2 files changed, 11 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index b8ad414dac47..84d5dec06252 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3151,7 +3151,7 @@  static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)
 
 	if (oicr & PFINT_OICR_TSYN_TX_M) {
 		ena_mask &= ~PFINT_OICR_TSYN_TX_M;
-		if (!hw->reset_ongoing && ice_ptp_pf_handles_tx_interrupt(pf))
+		if (ice_ptp_pf_handles_tx_interrupt(pf))
 			set_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread);
 	}
 
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 71f405f8a6fe..ac3f24693a50 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -705,7 +705,9 @@  static enum ice_tx_tstamp_work ice_ptp_tx_tstamp_owner(struct ice_pf *pf)
 
 		/* Read the Tx ready status first */
 		err = ice_get_phy_tx_tstamp_ready(&pf->hw, i, &tstamp_ready);
-		if (err || tstamp_ready)
+		if (err)
+			break;
+		else if (tstamp_ready)
 			return ICE_TX_TSTAMP_WORK_PENDING;
 	}
 
@@ -2468,12 +2470,10 @@  void ice_ptp_reset(struct ice_pf *pf)
 	int err, itr = 1;
 	u64 time_diff;
 
-	if (test_bit(ICE_PFR_REQ, pf->state))
+	if (test_bit(ICE_PFR_REQ, pf->state) ||
+	    !ice_pf_src_tmr_owned(pf))
 		goto pfr;
 
-	if (!ice_pf_src_tmr_owned(pf))
-		goto reset_ts;
-
 	err = ice_ptp_init_phc(hw);
 	if (err)
 		goto err;
@@ -2517,10 +2517,6 @@  void ice_ptp_reset(struct ice_pf *pf)
 			goto err;
 	}
 
-reset_ts:
-	/* Restart the PHY timestamping block */
-	ice_ptp_reset_phy_timestamping(pf);
-
 pfr:
 	/* Init Tx structures */
 	if (ice_is_e810(&pf->hw)) {
@@ -2536,6 +2532,11 @@  void ice_ptp_reset(struct ice_pf *pf)
 
 	set_bit(ICE_FLAG_PTP, pf->flags);
 
+	/* Restart the PHY timestamping block */
+	if (!test_bit(ICE_PFR_REQ, pf->state) &&
+	    ice_pf_src_tmr_owned(pf))
+		ice_ptp_restart_all_phy(pf);
+
 	/* Start periodic work going */
 	kthread_queue_delayed_work(ptp->kworker, &ptp->work, 0);