s390/qeth: make TSO controls protocol-agnostic

In preparation for IPv6 TSO, turn the protocol version into a parameter
for the TSO control code.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 20 deletions

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 1771d0073c0c..92e539d1fbd3 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -6396,27 +6396,27 @@ static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype,
         return rc ? -EIO : 0;
 }
 
-static int qeth_set_ipa_tso(struct qeth_card *card, int on)
+static int qeth_set_tso_off(struct qeth_card *card,
+                            enum qeth_prot_versions prot)
 {
-        int rc;
+        return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO,
+                                                 IPA_CMD_ASS_STOP, 0, prot);
+}
 
-        QETH_CARD_TEXT(card, 3, "sttso");
+static int qeth_set_tso_on(struct qeth_card *card,
+                           enum qeth_prot_versions prot)
+{
+        return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO,
+                                                 IPA_CMD_ASS_START, 0, prot);
+}
 
-        if (on) {
-                rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
-                                                  IPA_CMD_ASS_START, 0);
-                if (rc) {
-                        dev_warn(&card->gdev->dev,
-                                 "Starting outbound TCP segmentation offload for %s failed\n",
-                                 QETH_CARD_IFNAME(card));
-                        return -EIO;
-                }
-                dev_info(&card->gdev->dev, "Outbound TSO enabled\n");
-        } else {
-                rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
-                                                  IPA_CMD_ASS_STOP, 0);
-        }
-        return rc;
+static int qeth_set_ipa_tso(struct qeth_card *card, bool on,
+                            enum qeth_prot_versions prot)
+{
+        int rc = on ? qeth_set_tso_on(card, prot) :
+                      qeth_set_tso_off(card, prot);
+
+        return rc ? -EIO : 0;
 }
 
 static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on)
@@ -6493,8 +6493,9 @@ int qeth_set_features(struct net_device *dev, netdev_features_t features)
                 if (rc)
                         changed ^= NETIF_F_RXCSUM;
         }
-        if ((changed & NETIF_F_TSO)) {
-                rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO ? 1 : 0);
+        if (changed & NETIF_F_TSO) {
+                rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO,
+                                      QETH_PROT_IPV4);
                 if (rc)
                         changed ^= NETIF_F_TSO;
         }