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qeth: Use blkt defaults for OSA Express 4

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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>
This commit is contained in:
Stefan Raspl
2012-04-22 21:21:42 +00:00
committed by David S. Miller
parent 7e665afbb5
commit e6e056baa2
1 changed files with 2 additions and 1 deletions
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drivers/s390/net/qeth_core_main.c
+2 -1
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@@ -1672,7 +1672,8 @@ static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
{ {
QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); 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.time_total = 250;
card->info.blkt.inter_packet = 5; card->info.blkt.inter_packet = 5;
card->info.blkt.inter_packet_jumbo = 15; card->info.blkt.inter_packet_jumbo = 15;