[PATCH] net: sfp: reset fault retry counter on successful reinitialisation

[Stefan Mahr]

This patch resets the fault retry counter to the default value, if the
module reinitialisation was successful. Otherwise without resetting
the counter, five (N_FAULT/N_FAULT_INIT) single TX_FAULT events will
deactivate the module persistently.

In case the reinitialisation was not successful after five retries,
the module is still being deactivated.

Signed-off-by: Stefan Mahr <dac922@xxxxxx>
---
 drivers/net/phy/sfp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 63f90fe9a4d2..a8d7a713222a 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -2263,6 +2263,9 @@ static void sfp_sm_main(struct sfp *sfp, unsigned int event)
 		} else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR) {
 			dev_info(sfp->dev, "module transmit fault recovered\n");
 			sfp_sm_link_check_los(sfp);
+
+			/* Reset the fault retry count */
+			sfp->sm_fault_retries = N_FAULT;
 		}
 		break;

--
2.25.1