New port: FreeBSD driver for ATA over Ethernet (AoE)

Port author is Stacey D. Son. Two additional patches are added:
- a patch to fix build on FreeBSD 7 and later [1]
- a patch to fix device detection >2TB [2]

Submitted by:	pluknet [1], fjoe [2]
Tested by:	George Mamalakis

3 files changed, 147 insertions, 0 deletions

diff --git a/net/aoe/files/aoe.in b/net/aoe/files/aoe.in
new file mode 100644
index 000000000000..714a9dc71a98
--- /dev/null
+++ b/net/aoe/files/aoe.in
@@ -0,0 +1,65 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+# PROVIDE: netdisks
+# REQUIRE: NETWORKING sysctl
+# KEYWORD: nojail
+
+. /etc/rc.subr
+
+name="aoe"
+rcvar="`set_rcvar`"
+start_cmd="aoe_start"
+stop_cmd=":"
+
+# discover the AoE devices on requested interfaces and tell vinum
+# about the disks requested
+aoe_start()
+{
+	echo -n 1>&2 "Starting AoE:"
+	if [ -z "${aoe_iflist}" ]; then
+		echo 2>&1 " aoe_start: unset aoe_iflist."
+		return
+	fi
+	sysctl net.aoe > /dev/null 2>&1
+	if [ $? -eq 1 ]; then   
+		kldconfig -mf %%PREFIX%%/lib/aoe
+		kldload aoe > /dev/null 2>&1
+	fi
+	if [ $? -eq 0 ]; then
+		# Make sure the net interfaces are "up"
+		for i in ${aoe_iflist}; do
+			echo -n  1>&2 " $i"
+			ifconfig $i up
+		done
+		echo 1>&2 "."
+
+		# give the interfaces a chance to come up
+		sleep 3 
+		sysctl net.aoe.wc=${aoe_wc} > /dev/null 2>&1
+		sysctl net.aoe.iflist="${aoe_iflist}" > /dev/null 2>&1
+		sleep 1 
+		sysctl net.aoe.devices
+
+		# Needs to be updated for gvinum
+		#if checkyesno start_vinum; then
+		#if [ -n "${aoe_vinum_drives}" ]; then
+		#	vinum read "${aoe_vinum_drives}"
+		#fi
+                #fi
+		echo -n 1>&2 "Mounting AoE blades:"
+
+		for i in ${aoe_mounts}; do
+			echo -n  1>&2 " $i"
+			mount $i
+		done
+		echo 1>&2 "."
+	else
+		echo 1>&2 Failure initializing AoE
+	fi
+}
+
+load_rc_config $name
+run_rc_command "$1"
diff --git a/net/aoe/files/patch-aoecmd.c b/net/aoe/files/patch-aoecmd.c
new file mode 100644
index 000000000000..6868561e5ffb
--- /dev/null
+++ b/net/aoe/files/patch-aoecmd.c
@@ -0,0 +1,57 @@
+--- aoecmd.c.orig	2006-05-26 00:13:09.000000000 +0700
++++ aoecmd.c	2010-09-13 20:15:55.000000000 +0700
+@@ -44,6 +44,7 @@
+ #include <sys/mutex.h>
+ #include <sys/mbuf.h>
+ #include <sys/sysctl.h>
++#include <sys/endian.h>
+ 
+ #include <dev/aoe/aoe.h>
+ 
+@@ -427,29 +428,6 @@
+ 	goto loop;
+ }
+ 
+-static u_short
+-lhget16(u_char *p)
+-{
+-        u_short n;
+-
+-        n = p[1];
+-        n <<= 8;
+-	n |= p[0];
+-        return (n);
+-}
+-
+-static u_long
+-lhget32(u_char *p)
+-{
+-        u_long n;
+-
+-        n = lhget16(p+2);
+-        n <<= 16;
+-        n |= lhget16(p);
+-        return (n);
+-}
+-
+-
+ static void
+ ataid_complete(struct aoedev *d, char *id)
+ {
+@@ -457,13 +435,13 @@
+ 
+ 	memcpy(d->ad_ident, id, sizeof d->ad_ident);
+ 
+-	n = lhget16(id + (83<<1));		/* Command set supported. */
++	n = le16toh(*(uint16_t *) (id + (83<<1)));		/* Command set supported. */
+ 	if (n & (1<<10)) {			/* Lba48 */
+ 		atomic_set_32(&d->ad_flags, DEVFL_EXT);
+-		d->ad_nsectors = lhget32(id + (100<<1));	/* n lba48 sectors. */
++		d->ad_nsectors = le64toh(*(uint64_t *) (id + (100<<1)));	/* n lba48 sectors. */
+ 	} else {
+ 		atomic_clear_32(&d->ad_flags, DEVFL_EXT);
+-		d->ad_nsectors = lhget32(id + (60<<1));	/* n lba28 sectors. */
++		d->ad_nsectors = le32toh(*(uint32_t *) (id + (60<<1)));	/* n lba28 sectors. */
+ 	}
+ 	if (aoeblk_register(d) != 0)
+ 		IPRINTK("could not register disk\n");
diff --git a/net/aoe/files/patch-aoenet.c b/net/aoe/files/patch-aoenet.c
new file mode 100644
index 000000000000..91c6f12262da
--- /dev/null
+++ b/net/aoe/files/patch-aoenet.c
@@ -0,0 +1,25 @@
+--- aoenet.c.orig	2010-09-13 12:24:34.000000000 +0700
++++ aoenet.c	2010-09-13 12:26:12.000000000 +0700
+@@ -77,8 +77,11 @@
+ #define NECODES (sizeof(aoe_errlist) /  sizeof(char *) - 1)
+ #if (__FreeBSD_version < 600000)
+ #define IFPADDR(ifp) (((struct arpcom *) (ifp))->ac_enaddr)
+-#else
++#elif (__FreeBSD_version < 700000)
+ #define IFPADDR(ifp) IFP2ENADDR(ifp) 
++#else
++#include <net/if_dl.h>
++#define IFPADDR(ifp) IF_LLADDR(ifp)
+ #endif
+ #define IFLISTSZ 1024
+ 
+@@ -223,6 +226,9 @@
+ 
+ 		m1->m_ext.ref_cnt = NULL;
+ 		MEXTADD(m1, f->f_data, len, nilfn, 
++#if (__FreeBSD_version >= 800000)
++			f->f_data,
++#endif
+ 			NULL, 0, EXT_NET_DRV);
+ 		m1->m_len = len;
+ 		m1->m_next = NULL;