From mboxrd@z Thu Jan 1 00:00:00 1970 From: frank.blaschka@de.ibm.com Subject: [patch 2/2] [PATCH] qeth: Use blkt defaults for OSA Express 4 Date: Mon, 23 Apr 2012 09:21:42 +0200 Message-ID: <20120423072158.645482656@de.ibm.com> References: <20120423072140.297458261@de.ibm.com> Return-path: Content-Disposition: inline; filename=601-qeth-blkt-defaults.diff Sender: netdev-owner@vger.kernel.org List-Archive: List-Post: To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org, Stefan Raspl List-ID: From: Stefan Raspl The previous blkt defaults for OSA Express 4 cards produced inadequate performance for streaming workloads. The present patch will apply a set of more appropriate defaults. Signed-off-by: Stefan Raspl Reviewed-by: Ursula Braun Signed-off-by: Frank Blaschka --- drivers/s390/net/qeth_core_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1672,7 +1672,8 @@ static void qeth_configure_blkt_default( { QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); - if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) { + if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && + (prcd[76] == 0xF5 || prcd[76] == 0xF6)) { card->info.blkt.time_total = 250; card->info.blkt.inter_packet = 5; card->info.blkt.inter_packet_jumbo = 15;