drivers: net: Modifications for RMC PegaPCI.

* As submitted by RMC for modem support *

Bug 1054808

Change-Id: Ia25f0d6aaea899cb327cb2141d6896a508238c0c
Signed-off-by: Raj Jayaraman <rjayaraman@nvidia.com>
Reviewed-on: http://git-master/r/160032
(cherry picked from commit a81627cafe577dc5f640feb11596d485200c4c0d)
Reviewed-on: http://git-master/r/162292
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: WK Tsai <wtsai@nvidia.com>
Reviewed-by: Steve Lin <stlin@nvidia.com>

7 files changed, 275 insertions, 0 deletions

diff --git a/include/net/af_mhi.h b/include/net/af_mhi.h
new file mode 100644
index 000000000000..be571b7c28a8
--- /dev/null
+++ b/include/net/af_mhi.h
@@ -0,0 +1,38 @@
+/*
+ * File: net/af_mhi.h
+ *
+ * MHI Protocol Family kernel definitions
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __LINUX_NET_AFMHI_H
+#define __LINUX_NET_AFMHI_H
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+#include <net/sock.h>
+
+
+extern int mhi_register_protocol(int protocol);
+extern int mhi_unregister_protocol(int protocol);
+extern int mhi_protocol_registered(int protocol);
+
+extern int mhi_skb_send(struct sk_buff *skb, struct net_device *dev, u8 proto);
+
+
+#endif /* __LINUX_NET_AFMHI_H */
diff --git a/include/net/mhdp.h b/include/net/mhdp.h
new file mode 100644
index 000000000000..1b8558e74ab9
--- /dev/null
+++ b/include/net/mhdp.h
@@ -0,0 +1,43 @@
+/*
+ * File: mhdp.h
+ *
+ * Modem-Host Interface (MHI) - MHDP kernel interface
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __NET_MHDP_H
+#define __NET_MHDP_H
+
+struct mhdp_tunnel_parm {
+	char name[IFNAMSIZ];
+	int  pdn_id;
+	char master_interface[IFNAMSIZ];
+};
+
+struct mhdp_tunnel {
+	struct mhdp_tunnel	*next;
+	struct net_device	*dev;
+	struct mhdp_tunnel_parm	parms;
+	struct net_device *master_dev;
+	struct sk_buff *skb;
+};
+
+#define SIOCADDPDNID     (SIOCDEVPRIVATE + 1)
+#define SIOCDELPDNID     (SIOCDEVPRIVATE + 2)
+#define SIOCRESETMHDP    (SIOCDEVPRIVATE + 3)
+
+#endif /* __NET_MHDP_H */
diff --git a/include/net/mhi/dgram.h b/include/net/mhi/dgram.h
new file mode 100644
index 000000000000..ceb34d58f5ae
--- /dev/null
+++ b/include/net/mhi/dgram.h
@@ -0,0 +1,41 @@
+/*
+ * File: mhi/dgram.h
+ *
+ * MHI DGRAM socket definitions
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef MHI_DGRAM_H
+#define MHI_DGRAM_H
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+#include <net/sock.h>
+
+
+extern int mhi_dgram_sock_create(
+	struct net *net,
+	struct socket *sock,
+	int proto,
+	int kern);
+
+extern int  mhi_dgram_proto_init(void);
+extern void mhi_dgram_proto_exit(void);
+
+
+#endif /* MHI_DGRAM_H */
diff --git a/include/net/mhi/mhdp.h b/include/net/mhi/mhdp.h
new file mode 100644
index 000000000000..7ec1591cb8d3
--- /dev/null
+++ b/include/net/mhi/mhdp.h
@@ -0,0 +1,35 @@
+/*
+ * File: mhdp.h
+ *
+ * Modem-Host Interface (MHI) - MHDP kernel interface
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __NET_MHI_MHDP_H
+#define __NET_MHI_MHDP_H
+
+struct mhdp_tunnel_parm {
+	char name[IFNAMSIZ];
+	char master[IFNAMSIZ];
+	int  pdn_id;
+};
+
+#define SIOCADDPDNID     (SIOCDEVPRIVATE + 1)
+#define SIOCDELPDNID     (SIOCDEVPRIVATE + 2)
+#define SIOCRESETMHDP    (SIOCDEVPRIVATE + 3)
+
+#endif /* __NET_MHI_MHDP_H */
diff --git a/include/net/mhi/raw.h b/include/net/mhi/raw.h
new file mode 100644
index 000000000000..7c2edba4f111
--- /dev/null
+++ b/include/net/mhi/raw.h
@@ -0,0 +1,41 @@
+/*
+ * File: mhi/raw.h
+ *
+ * MHI RAW socket definitions
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef MHI_RAW_H
+#define MHI_RAW_H
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+#include <net/sock.h>
+
+
+extern int mhi_raw_sock_create(
+	struct net *net,
+	struct socket *sock,
+	int proto,
+	int kern);
+
+extern int  mhi_raw_proto_init(void);
+extern void mhi_raw_proto_exit(void);
+
+
+#endif /* MHI_RAW_H */
diff --git a/include/net/mhi/sched.h b/include/net/mhi/sched.h
new file mode 100644
index 000000000000..8ff4b420c70a
--- /dev/null
+++ b/include/net/mhi/sched.h
@@ -0,0 +1,35 @@
+/*
+ * File: mhi/sock.h
+ *
+ * MHI socket definitions
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef MHI_SCHED_H
+#define MHI_SCHED_H
+
+#define MHI_NOTIFY_QUEUE_LOW     19
+#define MHI_NOTIFY_QUEUE_HIGH    20
+
+extern int mhi_register_queue_notifier(struct Qdisc *sch,
+			struct notifier_block *nb, unsigned long cl);
+
+extern int mhi_unregister_queue_notifier(struct Qdisc *sch,
+			struct notifier_block *nb, unsigned long cl);
+
+
+#endif /* MHI_SCHED_H */
diff --git a/include/net/mhi/sock.h b/include/net/mhi/sock.h
new file mode 100644
index 000000000000..170c892ec171
--- /dev/null
+++ b/include/net/mhi/sock.h
@@ -0,0 +1,42 @@
+/*
+ * File: mhi/sock.h
+ *
+ * MHI socket definitions
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef MHI_SOCK_H
+#define MHI_SOCK_H
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+#include <net/sock.h>
+
+extern const struct proto_ops mhi_socket_ops;
+
+extern int  mhi_sock_rcv_unicast(struct sk_buff *skb, u8 l3prot, u32 l3len);
+extern int  mhi_sock_rcv_multicast(struct sk_buff *skb, u8 l3prot, u32 l3len);
+
+extern void mhi_sock_hash(struct sock *sk);
+extern void mhi_sock_unhash(struct sock *sk);
+
+extern int  mhi_sock_init(void);
+extern void mhi_sock_exit(void);
+
+
+#endif /* MHI_SOCK_H */