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authorFrank Blaschka <frank.blaschka@de.ibm.com>2011-01-12 20:42:25 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-15 20:45:57 -0800
commit16c0f9362433a76f01d174bb8b9c87b9a96198ee (patch)
tree5ec06583df449099cbfed4794cdecccb60e1483c /drivers/s390/net
parent394234406c7a8a6b947d230b115c918c0a1def68 (diff)
downloadlinux-linaro-android-16c0f9362433a76f01d174bb8b9c87b9a96198ee.tar.gz
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>
Diffstat (limited to 'drivers/s390/net')
-rw-r--r--drivers/s390/net/qeth_l3_main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 988255b443e..d09b0c44fc3 100644
--- 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++;
}