netdev - [PATCH net] ibmvnic: Fix rx queue cleanup for non-fatal resets

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Message-Id: <c09c98a7-6e93-b391-c764-cdf1a54515fb@linux.vnet.ibm.com>
Date:   Tue, 6 Feb 2018 16:21:49 -0600
From:   John Allen <jallen@...ux.vnet.ibm.com>
To:     netdev@...r.kernel.org
Cc:     Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>
Subject: [PATCH net] ibmvnic: Fix rx queue cleanup for non-fatal resets

At some point, a check was added to exit the polling routine during resets.
This makes sense for most reset conditions, but for a non-fatal error, we
expect the polling routine to continue running to properly clean up the rx
queues. This patch checks if we are performing a non-fatal reset and if we
are, continues normal polling operation.

Signed-off-by: John Allen <jallen@...ux.vnet.ibm.com>
---
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 8c3058d5d191..2a26b2ece7fe 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1831,7 +1831,8 @@ static int ibmvnic_poll(struct napi_struct *napi, int budget)
 		u16 offset;
 		u8 flags = 0;

-		if (unlikely(adapter->resetting)) {
+		if (unlikely(adapter->resetting &&
+			     adapter->reset_reason != VNIC_RESET_NON_FATAL)) {
 			enable_scrq_irq(adapter, adapter->rx_scrq[scrq_num]);
 			napi_complete_done(napi, frames_processed);
 			return frames_processed;