From: Ursula Braun <ubraun@linux.ibm.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org,
schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com,
raspl@linux.ibm.com, ubraun@linux.ibm.com
Subject: [PATCH net-next 3/7] net/smc: no delay for free tx buffer wait
Date: Tue, 12 Feb 2019 16:29:52 +0100 [thread overview]
Message-ID: <20190212152956.71041-4-ubraun@linux.ibm.com> (raw)
In-Reply-To: <20190212152956.71041-1-ubraun@linux.ibm.com>
From: Karsten Graul <kgraul@linux.ibm.com>
When no free transfer buffers are available then a work to call
smc_tx_work() is scheduled. Set the schedule delay to zero, because for
the out-of-buffers condition the work can start immediately and will
block in the called function smc_wr_tx_get_free_slot(), waiting for free
buffers.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
---
net/smc/smc_tx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c
index dd10a913b38e..a3bff08ff8c8 100644
--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -28,7 +28,7 @@
#include "smc_ism.h"
#include "smc_tx.h"
-#define SMC_TX_WORK_DELAY HZ
+#define SMC_TX_WORK_DELAY 0
#define SMC_TX_CORK_DELAY (HZ >> 2) /* 250 ms */
/***************************** sndbuf producer *******************************/
--
2.16.4
next prev parent reply other threads:[~2019-02-12 15:30 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-12 15:29 [PATCH net-next 0/7] net/smc: patches 2019-02-12 Ursula Braun
2019-02-12 15:29 ` [PATCH net-next 1/7] net/smc: reset cursor update required flag Ursula Braun
2019-02-12 15:29 ` [PATCH net-next 2/7] net/smc: move wake up of close waiter Ursula Braun
2019-02-12 15:29 ` Ursula Braun [this message]
2019-02-12 15:29 ` [PATCH net-next 4/7] net/smc: reduce amount of status updates to peer Ursula Braun
2019-02-12 15:29 ` [PATCH net-next 5/7] net/smc: check connections in smc_lgr_free_work Ursula Braun
2019-02-12 15:29 ` [PATCH net-next 6/7] net/smc: check port_idx of ib event Ursula Braun
2019-02-12 15:29 ` [PATCH net-next 7/7] MAINTAINERS: add Karsten as SMC maintainer Ursula Braun
2019-02-12 17:00 ` [PATCH net-next 0/7] net/smc: patches 2019-02-12 David Miller
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