From: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Date: Sun, 18 Jul 2021 00:12:22 +0800
Subject: igc: Increase timeout value for Speed 100/1000/2500
Patch-mainline: v5.15-rc1
Git-commit: b27b8dc77b5e9030b2babb2728f61f9bf6260922
References: jsc#SLE-18377
As the cycle time is set to maximum of 1s, the TX Hang timeout need to
be increase to avoid possible TX Hang.
There is no dedicated number specific in data sheet for the timeout factor.
Timeout factor was determined during the debugging to solve the "Tx Hang"
issues that happen in some cases mainly during ETF(Earliest TxTime First).
This can be test by using TSN Schedule Tx Tools udp_tai sample application.
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/igc/igc_main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -5318,7 +5318,9 @@ static void igc_watchdog_task(struct wor
adapter->tx_timeout_factor = 14;
break;
case SPEED_100:
- /* maybe add some timeout factor ? */
+ case SPEED_1000:
+ case SPEED_2500:
+ adapter->tx_timeout_factor = 7;
break;
}