[PATCH AUTOSEL 5.4 22/40] ibmvnic: continue to init in CRQ reset returns H_CLOSED
From: Sasha Levin <sashal@kernel.org>
Date: 2020-07-02 01:32:55
Also in:
lkml, netdev, stable
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
From: Dany Madden <redacted> [ Upstream commit 8b40eb73509f5704a0e8cd25de0163876299f1a7 ] Continue the reset path when partner adapter is not ready or H_CLOSED is returned from reset crq. This patch allows the CRQ init to proceed to establish a valid CRQ for traffic to flow after reset. Signed-off-by: Dany Madden <redacted> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/ibm/ibmvnic.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 5a42ddeecfe50..143a9722ad11a 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c@@ -1865,13 +1865,18 @@ static int do_reset(struct ibmvnic_adapter *adapter, release_sub_crqs(adapter, 1); } else { rc = ibmvnic_reset_crq(adapter); - if (!rc) + if (rc == H_CLOSED || rc == H_SUCCESS) { rc = vio_enable_interrupts(adapter->vdev); + if (rc) + netdev_err(adapter->netdev, + "Reset failed to enable interrupts. rc=%d\n", + rc); + } } if (rc) { netdev_err(adapter->netdev, - "Couldn't initialize crq. rc=%d\n", rc); + "Reset couldn't initialize crq. rc=%d\n", rc); goto out; }
--
2.25.1