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Commit e6e056ba authored by Stefan Raspl's avatar Stefan Raspl Committed by David S. Miller
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qeth: Use blkt defaults for OSA Express 4 



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: default avatarStefan Raspl <raspl@linux.vnet.ibm.com>
Reviewed-by: default avatarUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7e665afb

drivers/s390/net/qeth_core_main.c

+2 −1
Original line number Diff line number Diff line
@@ -1672,7 +1672,8 @@ static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) 
{

	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;