qeth: Use blkt defaults for OSA Express 4
authorStefan Raspl <raspl@linux.vnet.ibm.com>
Sun, 22 Apr 2012 21:21:42 +0000 (21:21 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 Apr 2012 04:33:17 +0000 (00:33 -0400)
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>
drivers/s390/net/qeth_core_main.c

index d78d0cedf637eca941b6bd2e81394d7a0ad3131a..8334dadc681de98eeb7ac78fed5755336ff58d63 100644 (file)
@@ -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;