qeth: No large send using EDDP for HiperSockets.

From: Klaus-Dieter Wacker <kdwacker@de.ibm.com>

The device driver qeth dos not support large send using EDDP for 
HiperSockets.

Signed-off-by: Klaus-Dieter Wacker <kdwacker@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 4a2ac0c8cef9..6811dd529f48 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -287,8 +287,15 @@ int qeth_set_large_send(struct qeth_card *card,
         card->options.large_send = type;
         switch (card->options.large_send) {
         case QETH_LARGE_SEND_EDDP:
-                card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
+                if (card->info.type != QETH_CARD_TYPE_IQD) {
+                        card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
                                         NETIF_F_HW_CSUM;
+                } else {
+                        card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
+                                                NETIF_F_HW_CSUM);
+                        card->options.large_send = QETH_LARGE_SEND_NO;
+                        rc = -EOPNOTSUPP;
+                }
                 break;
         case QETH_LARGE_SEND_TSO:
                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {