netdev - [PATCH net 2/2] igc: Fix TX timestamp support for non-MSI-X platforms

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Message-Id: <20211228182421.340354-3-anthony.l.nguyen@intel.com>
Date:   Tue, 28 Dec 2021 10:24:21 -0800
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     James McLaughlin <james.mclaughlin@....com>,
        netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
        sasha.neftin@...el.com, vitaly.lifshits@...el.com,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Nechama Kraus <nechamax.kraus@...ux.intel.com>
Subject: [PATCH net 2/2] igc: Fix TX timestamp support for non-MSI-X platforms

From: James McLaughlin <james.mclaughlin@....com>

Time synchronization was not properly enabled on non-MSI-X platforms.

Fixes: 2c344ae24501 ("igc: Add support for TX timestamping")
Signed-off-by: James McLaughlin <james.mclaughlin@....com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Tested-by: Nechama Kraus <nechamax.kraus@...ux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 8e448288ee26..d28a80a00953 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -5467,6 +5467,9 @@ static irqreturn_t igc_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+	if (icr & IGC_ICR_TS)
+		igc_tsync_interrupt(adapter);
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
@@ -5510,6 +5513,9 @@ static irqreturn_t igc_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+	if (icr & IGC_ICR_TS)
+		igc_tsync_interrupt(adapter);
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
-- 
2.31.1