s390/qeth: process local address events

In configurations where specific HW offloads are in use, OSA adapters
will raise notifications to their virtual devices about the IP addresses
that currently reside on the same adapter.
Cache these addresses in two RCU-enabled hash tables, and flush the
tables once the relevant HW offload(s) get disabled.

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

1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index d89a04bfd8b0..9d6f39d8f9ab 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -772,6 +772,29 @@ struct qeth_ipacmd_addr_change {
 	struct qeth_ipacmd_addr_change_entry entry[];
 } __packed;
 
+/* [UN]REGISTER_LOCAL_ADDRESS notifications */
+struct qeth_ipacmd_local_addr4 {
+	__be32 addr;
+	u32 flags;
+};
+
+struct qeth_ipacmd_local_addrs4 {
+	u32 count;
+	u32 addr_length;
+	struct qeth_ipacmd_local_addr4 addrs[];
+};
+
+struct qeth_ipacmd_local_addr6 {
+	struct in6_addr addr;
+	u32 flags;
+};
+
+struct qeth_ipacmd_local_addrs6 {
+	u32 count;
+	u32 addr_length;
+	struct qeth_ipacmd_local_addr6 addrs[];
+};
+
 /* Header for each IPA command */
 struct qeth_ipacmd_hdr {
 	__u8   command;
@@ -803,6 +826,8 @@ struct qeth_ipa_cmd {
 		struct qeth_ipacmd_setbridgeport	sbp;
 		struct qeth_ipacmd_addr_change		addrchange;
 		struct qeth_ipacmd_vnicc		vnicc;
+		struct qeth_ipacmd_local_addrs4		local_addrs4;
+		struct qeth_ipacmd_local_addrs6		local_addrs6;
 	} data;
 } __attribute__ ((packed));