diff options
| author | Sukadev Bhattiprolu <sukadev@linux.ibm.com> | 2021-02-02 21:08:02 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-02-06 10:36:22 -0800 |
| commit | ef66a1eace968ff22a35f45e6e8ec36b668b6116 (patch) | |
| tree | 450f9dd80e6b28e452d194666e95112b3464291e /drivers | |
| parent | 2da4b24b1dfbf06c7dc7fd45de258e007e1c5ef5 (diff) | |
| download | linux-ef66a1eace968ff22a35f45e6e8ec36b668b6116.tar.bz2 | |
ibmvnic: Clear failover_pending if unable to schedule
Normally we clear the failover_pending flag when processing the reset.
But if we are unable to schedule a failover reset we must clear the
flag ourselves. We could fail to schedule the reset if we are in PROBING
state (eg: when booting via kexec) or because we could not allocate memory.
Thanks to Cris Forno for helping isolate the problem and for testing.
Fixes: 1d8504937478 ("powerpc/vnic: Extend "failover pending" window")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Tested-by: Cristobal Forno <cforno12@linux.ibm.com>
Link: https://lore.kernel.org/r/20210203050802.680772-1-sukadev@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index f79034c786c8..a536fdbf05e1 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -4918,7 +4918,22 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq, complete(&adapter->init_done); adapter->init_done_rc = -EIO; } - ibmvnic_reset(adapter, VNIC_RESET_FAILOVER); + rc = ibmvnic_reset(adapter, VNIC_RESET_FAILOVER); + if (rc && rc != -EBUSY) { + /* We were unable to schedule the failover + * reset either because the adapter was still + * probing (eg: during kexec) or we could not + * allocate memory. Clear the failover_pending + * flag since no one else will. We ignore + * EBUSY because it means either FAILOVER reset + * is already scheduled or the adapter is + * being removed. + */ + netdev_err(netdev, + "Error %ld scheduling failover reset\n", + rc); + adapter->failover_pending = false; + } break; case IBMVNIC_CRQ_INIT_COMPLETE: dev_info(dev, "Partner initialization complete\n"); |