qeth: l3 hw tx csum circumvent hw bug

Some OSA level have a bug in the hw tx csum logic. We can circumvent this bug by turning on IP hw csum also. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Jan 16, 2011 · 16c0f93 · 16c0f93
1 parent 3942344
commit 16c0f93
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
@@ -2998,7 +2998,9 @@ static inline void qeth_l3_hdr_csum(struct qeth_card *card,
 	 */
 	if (iph->protocol == IPPROTO_UDP)
 		hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
-	hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
+	hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
+		QETH_HDR_EXT_CSUM_HDR_REQ;
+	iph->check = 0;
 	if (card->options.performance_stats)
 		card->perf_stats.tx_csum++;
 }