netdev - [PATCH net 4/5] be2net: wait longer to reap TX compls in be

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Message-ID: <57bc5399-f8f6-4c65-8cae-131c83d548ad@CMEXHTCAS1.ad.emulex.com>
Date:	Mon, 24 Feb 2014 12:20:52 +0530
From:	Somnath Kotur <somnath.kotur@...lex.com>
To:	<netdev@...r.kernel.org>
CC:	<davem@...emloft.net>,
	Vasundhara Volam <vasundhara.volam@...lex.com>,
	Sathya Perla <sathya.perla@...lex.com>,
	Somnath Kotur <somnath.kotur@...lex.com>
Subject: [PATCH net 4/5] be2net: wait longer to reap TX compls in be_close()

From: Vasundhara Volam <vasundhara.volam@...lex.com>

be_close() currently waits for a max of 200ms to receive all pending
TX compls. This timeout value was roughly calcuated based on 10G
transmission speeds and the TX queue depth. This timeout may not be
enough when the link is operating at lower speeds or in
multi-channel/SR-IOV configs with TX-rate limiting setting.
Increase the timeout to 2000ms and also bail-out if there is
a HW-error.

Signed-off-by: Vasundhara Volam <vasundhara.volam@...lex.com>
Signed-off-by: Sathya Perla <sathya.perla@...lex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@...lex.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index a9da6f9..f6a4481 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1985,7 +1985,7 @@ static void be_tx_compl_clean(struct be_adapter *adapter)
 				pending_txqs--;
 		}
 
-		if (pending_txqs == 0 || ++timeo > 200)
+		if (pending_txqs == 0 || ++timeo > 2000 || be_hw_error(adapter))
 			break;
 
 		mdelay(1);
-- 
1.5.6.1

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