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: Stefan Raspl <raspl@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index d78d0ce..8334dad 100644 (file)
--- 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(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;