[PATCH net v3 8/9] ibmvnic: no reset timeout for 5 seconds after reset
From: Dany Madden <hidden>
Date: 2020-11-26 00:22:45
Also in:
netdev
Subsystem:
ibm power sriov virtual nic device driver, linux for powerpc (32-bit and 64-bit), networking drivers, the rest · Maintainers:
Haren Myneni, Rick Lindsley, Madhavan Srinivasan, Michael Ellerman, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Reset timeout is going off right after adapter reset. This patch ensures
that timeout is scheduled if it has been 5 seconds since the last reset.
5 seconds is the default watchdog timeout.
Fixes: ed651a10875f1 ("ibmvnic: Updated reset handling")
Signed-off-by: Dany Madden <redacted>
---
drivers/net/ethernet/ibm/ibmvnic.c | 11 +++++++++--
drivers/net/ethernet/ibm/ibmvnic.h | 2 ++
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 9005fab09e15..a17856be2828 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c@@ -2253,6 +2253,7 @@ static void __ibmvnic_reset(struct work_struct *work) rc = do_reset(adapter, rwi, reset_state); } kfree(rwi); + adapter->last_reset_time = jiffies; if (rc) netdev_dbg(adapter->netdev, "Reset failed, rc=%d\n", rc);
@@ -2356,7 +2357,13 @@ static void ibmvnic_tx_timeout(struct net_device *dev, unsigned int txqueue) "Adapter is resetting, skip timeout reset\n"); return; } - + /* No queuing up reset until at least 5 seconds (default watchdog val) + * after last reset + */ + if (time_before(jiffies, (adapter->last_reset_time + dev->watchdog_timeo))) { + netdev_dbg(dev, "Not yet time to tx timeout.\n"); + return; + } ibmvnic_reset(adapter, VNIC_RESET_TIMEOUT); }
@@ -5277,7 +5284,7 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) adapter->state = VNIC_PROBED; adapter->wait_for_reset = false; - + adapter->last_reset_time = jiffies; return 0; ibmvnic_register_fail:
diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 6f0a701c4a38..b21092f5f9c1 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h@@ -1088,6 +1088,8 @@ struct ibmvnic_adapter { unsigned long resetting; bool napi_enabled, from_passive_init; bool login_pending; + /* last device reset time */ + unsigned long last_reset_time; bool failover_pending; bool force_reset_recovery;
--
2.26.2