[PATCH net] ibmvnic: continue to init in CRQ reset returns H_CLOSED

Subsystems: ibm power sriov virtual nic device driver, linux for powerpc (32-bit and 64-bit), networking drivers, the rest

STALE2237d

2 messages, 2 authors, 2020-06-21 · open the first message on its own page

[PATCH net] ibmvnic: continue to init in CRQ reset returns H_CLOSED

From: Dany Madden <hidden>
Date: 2020-06-18 21:07:22

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>
---
 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 2baf7b3ff4cb..4b7cb483c47f 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1971,13 +1971,18 @@ 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;
 		}
 
-- 
2.18.2

Re: [PATCH net] ibmvnic: continue to init in CRQ reset returns H_CLOSED

From: David Miller <davem@davemloft.net>
Date: 2020-06-21 00:30:30

From: Dany Madden <redacted>
Date: Thu, 18 Jun 2020 15:24:13 -0400
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>
Applied, thanks.
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