Patchwork [2/2] qeth: Use blkt defaults for OSA Express 4

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Submitter frank.blaschka@de.ibm.com
Date April 23, 2012, 7:21 a.m.
Message ID <20120423072158.645482656@de.ibm.com>
Download mbox | patch
Permalink /patch/154335/
State Accepted
Delegated to: David Miller
Headers show

Comments

frank.blaschka@de.ibm.com - April 23, 2012, 7:21 a.m.
From: Stefan Raspl <raspl@linux.vnet.ibm.com>

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>
---

 drivers/s390/net/qeth_core_main.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


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Patch

--- 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;