s390/qeth: enhance TSO control sequence

TSO6 requires the full programming sequence, and not just a simple
START command. This implements the additional ENABLE command, and adds
some sanity checks that were missing for the START command.

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

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index aa5de1fe01e1..e85090467afe 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -56,6 +56,21 @@ static inline bool qeth_intparm_is_iob(unsigned long intparm)
 #define IPA_CMD_INITIATOR_OSA_REPLY   0x81
 #define IPA_CMD_PRIM_VERSION_NO 0x01
 
+struct qeth_ipa_caps {
+	u32 supported;
+	u32 enabled;
+};
+
+static inline bool qeth_ipa_caps_supported(struct qeth_ipa_caps *caps, u32 mask)
+{
+	return (caps->supported & mask) == mask;
+}
+
+static inline bool qeth_ipa_caps_enabled(struct qeth_ipa_caps *caps, u32 mask)
+{
+	return (caps->enabled & mask) == mask;
+}
+
 enum qeth_card_types {
 	QETH_CARD_TYPE_OSD     = 1,
 	QETH_CARD_TYPE_IQD     = 5,
@@ -405,14 +420,25 @@ struct qeth_checksum_cmd {
 	__u32 enabled;
 } __packed;
 
+enum qeth_ipa_large_send_caps {
+	QETH_IPA_LARGE_SEND_TCP		= 0x00000001,
+};
+
+struct qeth_tso_start_data {
+	u32 mss;
+	u32 supported;
+};
+
 /* SETASSPARMS IPA Command: */
 struct qeth_ipacmd_setassparms {
 	struct qeth_ipacmd_setassparms_hdr hdr;
 	union {
 		__u32 flags_32bit;
+		struct qeth_ipa_caps caps;
 		struct qeth_checksum_cmd chksum;
 		struct qeth_arp_cache_entry add_arp_entry;
 		struct qeth_arp_query_data query_arp;
+		struct qeth_tso_start_data tso;
 		__u8 ip[16];
 	} data;
 } __attribute__ ((packed));