[PATCH] PPC64: iSeries virtual ethernet driver

From: Stephen Rothwell <sfr@canb.auug.org.au>

This is the iSeries virtual ethernet driver.  David Gibson has taken you
previous comments and hopefully sitisfied most of them.  The driver has
also undergone some more testing which showed up some bugs which have been
addressed.

Unfortunately, Anton is about to submit some other patches of mine which
will sightly comflict with this.  I will send a patch shortly that will
(hopefully) fix that.

drivers/net/Kconfig

@@ -2104,7 +2104,7 @@ config IXGB_NAPI
 endmenu
 
 
-config VETH
+config ISERIES_VETH
 	tristate "iSeries Virtual Ethernet driver support"
 	depends on NETDEVICES && PPC_ISERIES
 

drivers/net/Makefile

@@ -45,6 +45,7 @@ obj-$(CONFIG_SIS190) += sis190.o
 obj-$(CONFIG_SIS900) += sis900.o
 obj-$(CONFIG_YELLOWFIN) += yellowfin.o
 obj-$(CONFIG_ACENIC) += acenic.o
+obj-$(CONFIG_ISERIES_VETH) += iseries_veth.o
 obj-$(CONFIG_NATSEMI) += natsemi.o
 obj-$(CONFIG_NS83820) += ns83820.o
 obj-$(CONFIG_STNIC) += stnic.o 8390.o

drivers/net/iseries_veth.h

+/* File veth.h created by Kyle A. Lucke on Mon Aug  7 2000. */
+
+#ifndef _ISERIES_VETH_H
+#define _ISERIES_VETH_H
+
+#define VethEventTypeCap	(0)
+#define VethEventTypeFrames	(1)
+#define VethEventTypeMonitor	(2)
+#define VethEventTypeFramesAck	(3)
+
+#define VETH_MAX_ACKS_PER_MSG	(20)
+#define VETH_MAX_FRAMES_PER_MSG	(6)
+
+struct VethFramesData {
+	u32 addr[VETH_MAX_FRAMES_PER_MSG];
+	u16 len[VETH_MAX_FRAMES_PER_MSG];
+	u32 eofmask;
+};
+#define VETH_EOF_SHIFT		(32-VETH_MAX_FRAMES_PER_MSG)
+
+struct VethFramesAckData {
+	u16 token[VETH_MAX_ACKS_PER_MSG];
+};
+
+struct VethCapData {
+	u8 caps_version;
+	u8 rsvd1;
+	u16 num_buffers;
+	u16 ack_threshold;
+	u16 rsvd2;
+	u32 ack_timeout;
+	u32 rsvd3;
+	u64 rsvd4[3];
+};
+
+struct VethLpEvent {
+	struct HvLpEvent base_event;
+	union {
+		struct VethCapData caps_data;
+		struct VethFramesData frames_data;
+		struct VethFramesAckData frames_ack_data;
+	} u;
+
+};
+
+#define HVMAXARCHITECTEDVIRTUALLANS (16)
+
+#endif	/* _ISERIES_VETH_H */