netxen: enable ip addr hashing

NX3031 hardware requires local IP addresses for packet
accumulation (LRO). IP address hashing is required to
distinguish a local TCP flow from others (forwarded or
guest).

This patch adds listener for IP and netdev events and
configures IP address in the firmware.

Signed-off-by: Amit Kumar Salecha <amit@netxen.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 3c614c3cc62b..088611bb5bdb 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -706,6 +706,30 @@ int netxen_config_rss(struct netxen_adapter *adapter, int enable)
         return rv;
 }
 
+int netxen_config_ipaddr(struct netxen_adapter *adapter, u32 ip, int cmd)
+{
+        nx_nic_req_t req;
+        u64 word;
+        int rv;
+
+        memset(&req, 0, sizeof(nx_nic_req_t));
+        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
+
+        word = NX_NIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
+        req.req_hdr = cpu_to_le64(word);
+
+        req.words[0] = cpu_to_le64(cmd);
+        req.words[1] = cpu_to_le64(ip);
+
+        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
+        if (rv != 0) {
+                printk(KERN_ERR "%s: could not notify %s IP 0x%x reuqest\n",
+                                adapter->netdev->name,
+                                (cmd == NX_IP_UP) ? "Add" : "Remove", ip);
+        }
+        return rv;
+}
+
 int netxen_linkevent_request(struct netxen_adapter *adapter, int enable)
 {
         nx_nic_req_t req;