[PATCH 3/3] ibmvnic: Do not disable device during failover or partition migration
flat view
STALE3152d
From: Thomas Falcon <hidden>
Date: 2018-03-07 23:41:23
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, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- resend [diff vs current]
During a device failover or partition migration reset, it is not necessary to disable the backing adapter since it should not be running yet and its Command-Response Queue is closed. Sending device commands during this time could result in an error or timeout disrupting the reset process. In these cases, just halt transmissions, clean up resources, and continue with reset. Signed-off-by: Thomas Falcon <redacted> --- drivers/net/ethernet/ibm/ibmvnic.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index d93f286..7be4b06 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c@@ -1653,12 +1653,15 @@ static int do_reset(struct ibmvnic_adapter *adapter, rc = ibmvnic_reenable_crq_queue(adapter); if (rc) return 0; + ibmvnic_cleanup(netdev); + } else if (rwi->reset_reason == VNIC_RESET_FAILOVER) { + ibmvnic_cleanup(netdev); + } else { + rc = __ibmvnic_close(netdev); + if (rc) + return rc; } - rc = __ibmvnic_close(netdev); - if (rc) - return rc; - if (adapter->reset_reason == VNIC_RESET_CHANGE_PARAM || adapter->wait_for_reset) { release_resources(adapter);
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1.8.3.1