svn commit: r273868 - in stable/9/sys: contrib/rdma/krping ofed/drivers/infiniband/core ofed/drivers/infiniband/hw/mlx4 ofed/drivers/infiniband/hw/mthca ofed/drivers/infiniband/ulp/ipoib ofed/drive...

Hans Petter Selasky hselasky at FreeBSD.org
Thu Oct 30 17:05:40 UTC 2014


Author: hselasky
Date: Thu Oct 30 17:05:32 2014
New Revision: 273868
URL: https://svnweb.freebsd.org/changeset/base/273868

Log:
  MFC r273135 and r273867:
  Update the OFED Linux compatibility layer and
  Mellanox hardware driver(s):
  
  - Properly name an inclusion guard.
  - Fix compile warnings regarding unsigned enums.
  - Fix compile warning regarding unused variable.
  - Add two new sysctl nodes.
  - Remove all empty linux header files.
  - Make an error printout more verbose.
  - Use "mod_delayed_work()" instead of
    cancelling and starting a timeout.
  - Implement more Linux scatterlist
    functions.
  - Don't forget to add "options OFED" to
    the kernel configuration file before
    using infiniband.
  
  Sponsored by:	Mellanox Technologies

Deleted:
  stable/9/sys/ofed/drivers/net/mlx4/en_params.c
  stable/9/sys/ofed/drivers/net/mlx4/xrcd.c
  stable/9/sys/ofed/include/asm/page.h
  stable/9/sys/ofed/include/linux/ethtool.h
  stable/9/sys/ofed/include/linux/inet.h
  stable/9/sys/ofed/include/linux/mount.h
Modified:
  stable/9/sys/contrib/rdma/krping/krping.c
  stable/9/sys/ofed/drivers/infiniband/core/addr.c
  stable/9/sys/ofed/drivers/infiniband/core/agent.c
  stable/9/sys/ofed/drivers/infiniband/core/ucm.c
  stable/9/sys/ofed/drivers/infiniband/core/uverbs_main.c
  stable/9/sys/ofed/drivers/infiniband/hw/mlx4/ah.c
  stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_config_reg.h
  stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_memfree.c
  stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_uar.c
  stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
  stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
  stable/9/sys/ofed/drivers/net/mlx4/Makefile
  stable/9/sys/ofed/drivers/net/mlx4/en_ethtool.c
  stable/9/sys/ofed/drivers/net/mlx4/en_netdev.c
  stable/9/sys/ofed/drivers/net/mlx4/en_selftest.c
  stable/9/sys/ofed/drivers/net/mlx4/en_tx.c
  stable/9/sys/ofed/drivers/net/mlx4/mcg.c
  stable/9/sys/ofed/drivers/net/mlx4/pd.c
  stable/9/sys/ofed/include/linux/completion.h
  stable/9/sys/ofed/include/linux/etherdevice.h
  stable/9/sys/ofed/include/linux/mlx4/device.h
  stable/9/sys/ofed/include/linux/mlx4/driver.h
  stable/9/sys/ofed/include/linux/netdevice.h
  stable/9/sys/ofed/include/linux/scatterlist.h
  stable/9/sys/ofed/include/linux/vmalloc.h
  stable/9/sys/ofed/include/rdma/ib_addr.h
  stable/9/sys/ofed/include/rdma/ib_smi.h
  stable/9/sys/ofed/include/rdma/ib_user_cm.h
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/dev/   (props changed)

Modified: stable/9/sys/contrib/rdma/krping/krping.c
==============================================================================
--- stable/9/sys/contrib/rdma/krping/krping.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/contrib/rdma/krping/krping.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -39,7 +39,6 @@ __FBSDID("$FreeBSD$");
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/string.h>
-#include <linux/inet.h>
 #include <linux/list.h>
 #include <linux/in.h>
 #include <linux/device.h>

Modified: stable/9/sys/ofed/drivers/infiniband/core/addr.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/core/addr.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/core/addr.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -35,10 +35,15 @@
 
 #include <linux/mutex.h>
 #include <linux/inetdevice.h>
+#include <linux/slab.h>
 #include <linux/workqueue.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
 #include <net/route.h>
 #include <net/netevent.h>
 #include <rdma/ib_addr.h>
+#include <netinet/if_ether.h>
+
 
 MODULE_AUTHOR("Sean Hefty");
 MODULE_DESCRIPTION("IB Address Translation");
@@ -189,13 +194,11 @@ static void set_timeout(unsigned long ti
 {
 	unsigned long delay;
 
-	cancel_delayed_work(&work);
-
 	delay = time - jiffies;
 	if ((long)delay <= 0)
 		delay = 1;
 
-	queue_delayed_work(addr_wq, &work, delay);
+	mod_delayed_work(addr_wq, &work, delay);
 }
 
 static void queue_req(struct addr_req *req)
@@ -620,7 +623,7 @@ static struct notifier_block nb = {
 	.notifier_call = netevent_callback
 };
 
-static int addr_init(void)
+static int __init addr_init(void)
 {
 	INIT_DELAYED_WORK(&work, process_req);
 	addr_wq = create_singlethread_workqueue("ib_addr");
@@ -631,7 +634,7 @@ static int addr_init(void)
 	return 0;
 }
 
-static void addr_cleanup(void)
+static void __exit addr_cleanup(void)
 {
 	unregister_netevent_notifier(&nb);
 	destroy_workqueue(addr_wq);

Modified: stable/9/sys/ofed/drivers/infiniband/core/agent.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/core/agent.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/core/agent.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -101,7 +101,8 @@ void agent_send_response(struct ib_mad *
 	agent = port_priv->agent[qpn];
 	ah = ib_create_ah_from_wc(agent->qp->pd, wc, grh, port_num);
 	if (IS_ERR(ah)) {
-		printk(KERN_ERR SPFX "ib_create_ah_from_wc error\n");
+		printk(KERN_ERR SPFX "ib_create_ah_from_wc error %ld\n",
+			PTR_ERR(ah));
 		return;
 	}
 

Modified: stable/9/sys/ofed/drivers/infiniband/core/ucm.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/core/ucm.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/core/ucm.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -38,7 +38,6 @@
 #include <linux/err.h>
 #include <linux/poll.h>
 #include <linux/file.h>
-#include <linux/mount.h>
 #include <linux/cdev.h>
 #include <linux/idr.h>
 #include <linux/mutex.h>

Modified: stable/9/sys/ofed/drivers/infiniband/core/uverbs_main.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/core/uverbs_main.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/core/uverbs_main.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -40,7 +40,6 @@
 #include <linux/fs.h>
 #include <linux/poll.h>
 #include <linux/file.h>
-#include <linux/mount.h>
 #include <linux/cdev.h>
 
 #include <asm/uaccess.h>

Modified: stable/9/sys/ofed/drivers/infiniband/hw/mlx4/ah.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/hw/mlx4/ah.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/hw/mlx4/ah.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -38,7 +38,6 @@
 #include <rdma/ib_cache.h>
 
 #include <linux/slab.h>
-#include <linux/inet.h>
 #include <linux/string.h>
 
 #include "mlx4_ib.h"

Modified: stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_config_reg.h
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_config_reg.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_config_reg.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -34,7 +34,7 @@
 #ifndef MTHCA_CONFIG_REG_H
 #define MTHCA_CONFIG_REG_H
 
-#include <asm/page.h>
+#include <linux/page.h>
 
 #define MTHCA_HCR_BASE         0x80680
 #define MTHCA_HCR_SIZE         0x0001c

Modified: stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_memfree.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_memfree.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_memfree.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -36,7 +36,7 @@
 #include <linux/scatterlist.h>
 #include <linux/sched.h>
 
-#include <asm/page.h>
+#include <linux/page.h>
 
 #include "mthca_memfree.h"
 #include "mthca_dev.h"

Modified: stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_uar.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_uar.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/hw/mthca/mthca_uar.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -30,7 +30,7 @@
  * SOFTWARE.
  */
 
-#include <asm/page.h>		/* PAGE_SHIFT */
+#include <linux/page.h>
 
 #include "mthca_dev.h"
 #include "mthca_memfree.h"

Modified: stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -31,7 +31,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/ethtool.h>
 #include <linux/netdevice.h>
 
 #include "ipoib.h"

Modified: stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
==============================================================================
--- stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_verbs.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_verbs.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -32,7 +32,6 @@
  */
 
 #include "ipoib.h"
-#include <linux/ethtool.h>
 
 int ipoib_mcast_attach(struct ipoib_dev_priv *priv, u16 mlid, union ib_gid *mgid, int set_qkey)
 {

Modified: stable/9/sys/ofed/drivers/net/mlx4/Makefile
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/Makefile	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/Makefile	Thu Oct 30 17:05:32 2014	(r273868)
@@ -31,4 +31,3 @@ opt_inet6.h:
 .include <bsd.kmod.mk>
 
 CFLAGS+= -Wno-cast-qual -Wno-pointer-arith -fms-extensions
-

Modified: stable/9/sys/ofed/drivers/net/mlx4/en_ethtool.c
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/en_ethtool.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/en_ethtool.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -32,7 +32,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/ethtool.h>
 #include <linux/netdevice.h>
 #include <linux/mlx4/driver.h>
 #include <linux/in.h>

Modified: stable/9/sys/ofed/drivers/net/mlx4/en_netdev.c
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/en_netdev.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/en_netdev.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -2335,9 +2335,11 @@ static void mlx4_en_sysctl_conf(struct m
         struct sysctl_oid_list *node_list;
         struct sysctl_oid *coal;
         struct sysctl_oid_list *coal_list;
+	const char *pnameunit;
 
         dev = priv->dev;
         ctx = &priv->conf_ctx;
+	pnameunit = device_get_nameunit(priv->mdev->pdev->dev.bsddev);
 
         sysctl_ctx_init(ctx);
         priv->sysctl = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
@@ -2350,10 +2352,10 @@ static void mlx4_en_sysctl_conf(struct m
             CTLFLAG_RW, &priv->msg_enable, 0,
             "Driver message enable bitfield");
         SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "rx_rings",
-            CTLTYPE_INT | CTLFLAG_RD, &priv->rx_ring_num, 0,
+            CTLFLAG_RD, &priv->rx_ring_num, 0,
             "Number of receive rings");
         SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "tx_rings",
-            CTLTYPE_INT | CTLFLAG_RD, &priv->tx_ring_num, 0,
+            CTLFLAG_RD, &priv->tx_ring_num, 0,
             "Number of transmit rings");
         SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "rx_size",
             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0,
@@ -2367,6 +2369,12 @@ static void mlx4_en_sysctl_conf(struct m
         SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "rx_ppp",
             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0,
             mlx4_en_set_rx_ppp, "I", "RX Per-priority pause");
+        SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "port_num",
+            CTLFLAG_RD, &priv->port, 0,
+            "Port Number");
+        SYSCTL_ADD_STRING(ctx, node_list, OID_AUTO, "device_name",
+	    CTLFLAG_RD, __DECONST(void *, pnameunit), 0,
+	    "PCI device name");
 
         /* Add coalescer configuration. */
         coal = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO,

Modified: stable/9/sys/ofed/drivers/net/mlx4/en_selftest.c
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/en_selftest.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/en_selftest.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -32,7 +32,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/ethtool.h>
 #include <linux/netdevice.h>
 #include <linux/delay.h>
 #include <linux/mlx4/driver.h>

Modified: stable/9/sys/ofed/drivers/net/mlx4/en_tx.c
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/en_tx.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/en_tx.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -31,7 +31,7 @@
  *
  */
 
-#include <asm/page.h>
+#include <linux/page.h>
 #include <linux/mlx4/cq.h>
 #include <linux/slab.h>
 #include <linux/mlx4/qp.h>

Modified: stable/9/sys/ofed/drivers/net/mlx4/mcg.c
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/mcg.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/mcg.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -39,9 +39,6 @@
 
 #include "mlx4.h"
 
-
-static const u8 zero_gid[16];	/* automatically initialized to 0 */
-
 int mlx4_get_mgm_entry_size(struct mlx4_dev *dev)
 {
 	return 1 << dev->oper_log_mgm_entry_size;

Modified: stable/9/sys/ofed/drivers/net/mlx4/pd.c
==============================================================================
--- stable/9/sys/ofed/drivers/net/mlx4/pd.c	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/drivers/net/mlx4/pd.c	Thu Oct 30 17:05:32 2014	(r273868)
@@ -35,7 +35,7 @@
 #include <linux/module.h>
 #include <linux/io-mapping.h>
 
-#include <asm/page.h>
+#include <linux/page.h>
 
 #include "mlx4.h"
 #include "icm.h"

Modified: stable/9/sys/ofed/include/linux/completion.h
==============================================================================
--- stable/9/sys/ofed/include/linux/completion.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/completion.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -27,8 +27,8 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef	_FBSD_COMPLETION_H_
-#define	_FBSD_COMPLETION_H_
+#ifndef	_LINUX_COMPLETION_H_
+#define	_LINUX_COMPLETION_H_
 
 #include <linux/errno.h>
 

Modified: stable/9/sys/ofed/include/linux/etherdevice.h
==============================================================================
--- stable/9/sys/ofed/include/linux/etherdevice.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/etherdevice.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -1,4 +1,4 @@
-/*
+/*-
  * Copyright (c) 2007 Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2014 Mellanox Technologies, Ltd. All rights reserved.
  *

Modified: stable/9/sys/ofed/include/linux/mlx4/device.h
==============================================================================
--- stable/9/sys/ofed/include/linux/mlx4/device.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/mlx4/device.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -1036,6 +1036,7 @@ enum mlx4_net_trans_rule_id {
 	MLX4_NET_TRANS_RULE_ID_TCP,
 	MLX4_NET_TRANS_RULE_ID_UDP,
 	MLX4_NET_TRANS_RULE_NUM, /* should be last */
+	MLX4_NET_TRANS_RULE_DUMMY = -1,	/* force enum to be signed */
 };
 
 extern const u16 __sw_id_hw[];
@@ -1058,6 +1059,7 @@ enum mlx4_net_trans_promisc_mode {
 	MLX4_FS_UC_SNIFFER,
 	MLX4_FS_MC_SNIFFER,
 	MLX4_FS_MODE_NUM, /* should be last */
+	MLX4_FS_MODE_DUMMY = -1,	/* force enum to be signed */
 };
 
 struct mlx4_spec_eth {

Modified: stable/9/sys/ofed/include/linux/mlx4/driver.h
==============================================================================
--- stable/9/sys/ofed/include/linux/mlx4/driver.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/mlx4/driver.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -121,7 +121,7 @@ void *mlx4_get_protocol_dev(struct mlx4_
 #ifndef ETH_ALEN
 #define ETH_ALEN	6
 #endif
-static inline u64 mlx4_mac_to_u64(u8 *addr)
+static inline u64 mlx4_mac_to_u64(const u8 *addr)
 {
 	u64 mac = 0;
 	int i;

Modified: stable/9/sys/ofed/include/linux/netdevice.h
==============================================================================
--- stable/9/sys/ofed/include/linux/netdevice.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/netdevice.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -40,7 +40,6 @@
 
 #include <linux/completion.h>
 #include <linux/device.h>
-#include <linux/ethtool.h>
 #include <linux/workqueue.h>
 #include <linux/net.h>
 #include <linux/notifier.h>

Modified: stable/9/sys/ofed/include/linux/scatterlist.h
==============================================================================
--- stable/9/sys/ofed/include/linux/scatterlist.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/scatterlist.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -31,6 +31,21 @@
 #define	_LINUX_SCATTERLIST_H_
 
 #include <linux/page.h>
+#include <linux/slab.h>
+
+/*
+ * SG table design.
+ *
+ * If flags bit 0 is set, then the sg field contains a pointer to the next sg
+ * table list. Otherwise the next entry is at sg + 1, can be determined using
+ * the sg_is_chain() function.
+ *
+ * If flags bit 1 is set, then this sg entry is the last element in a list,
+ * can be determined using the sg_is_last() function.
+ *
+ * See sg_next().
+ *
+ */
 
 struct scatterlist {
 	union {
@@ -49,6 +64,12 @@ struct sg_table {
 	unsigned int orig_nents;        /* original size of list */
 };
 
+/*
+ * Maximum number of entries that will be allocated in one piece, if
+ * a list larger than this is required then chaining will be utilized.
+ */
+#define SG_MAX_SINGLE_ALLOC             (PAGE_SIZE / sizeof(struct scatterlist))
+
 #define	sg_dma_address(sg)	(sg)->address
 #define	sg_dma_len(sg)		(sg)->length
 #define	sg_page(sg)		(sg)->sl_un.page
@@ -99,6 +120,212 @@ sg_phys(struct scatterlist *sg)
 	return sg_page(sg)->phys_addr + sg->offset;
 }
 
+/**
+ * sg_chain - Chain two sglists together
+ * @prv:        First scatterlist
+ * @prv_nents:  Number of entries in prv
+ * @sgl:        Second scatterlist
+ *
+ * Description:
+ *   Links @prv@ and @sgl@ together, to form a longer scatterlist.
+ *
+ **/
+static inline void
+sg_chain(struct scatterlist *prv, unsigned int prv_nents,
+					struct scatterlist *sgl)
+{
+/*
+ * offset and length are unused for chain entry.  Clear them.
+ */
+	struct scatterlist *sg = &prv[prv_nents - 1];
+
+	sg->offset = 0;
+	sg->length = 0;
+
+	/*
+	 * Indicate a link pointer, and set the link to the second list.
+	 */
+	sg->flags = SG_CHAIN;
+	sg->sl_un.sg = sgl;
+}
+
+/**
+ * sg_mark_end - Mark the end of the scatterlist
+ * @sg:          SG entryScatterlist
+ *
+ * Description:
+ *   Marks the passed in sg entry as the termination point for the sg
+ *   table. A call to sg_next() on this entry will return NULL.
+ *
+ **/
+static inline void sg_mark_end(struct scatterlist *sg)
+{
+        sg->flags = SG_END;
+}
+
+/**
+ * __sg_free_table - Free a previously mapped sg table
+ * @table:      The sg table header to use
+ * @max_ents:   The maximum number of entries per single scatterlist
+ *
+ *  Description:
+ *    Free an sg table previously allocated and setup with
+ *    __sg_alloc_table().  The @max_ents value must be identical to
+ *    that previously used with __sg_alloc_table().
+ *
+ **/
+static inline void
+__sg_free_table(struct sg_table *table, unsigned int max_ents)
+{
+	struct scatterlist *sgl, *next;
+
+	if (unlikely(!table->sgl))
+		return;
+
+	sgl = table->sgl;
+	while (table->orig_nents) {
+		unsigned int alloc_size = table->orig_nents;
+		unsigned int sg_size;
+
+		/*
+		 * If we have more than max_ents segments left,
+		 * then assign 'next' to the sg table after the current one.
+		 * sg_size is then one less than alloc size, since the last
+		 * element is the chain pointer.
+		 */
+		if (alloc_size > max_ents) {
+			next = sgl[max_ents - 1].sl_un.sg;
+			alloc_size = max_ents;
+			sg_size = alloc_size - 1;
+		} else {
+			sg_size = alloc_size;
+			next = NULL;
+		}
+
+		table->orig_nents -= sg_size;
+		kfree(sgl);
+		sgl = next;
+	}
+
+	table->sgl = NULL;
+}
+
+/**
+ * sg_free_table - Free a previously allocated sg table
+ * @table:      The mapped sg table header
+ *
+ **/
+static inline void
+sg_free_table(struct sg_table *table)
+{
+	__sg_free_table(table, SG_MAX_SINGLE_ALLOC);
+}
+
+/**
+ * __sg_alloc_table - Allocate and initialize an sg table with given allocator
+ * @table:      The sg table header to use
+ * @nents:      Number of entries in sg list
+ * @max_ents:   The maximum number of entries the allocator returns per call
+ * @gfp_mask:   GFP allocation mask
+ *
+ * Description:
+ *   This function returns a @table @nents long. The allocator is
+ *   defined to return scatterlist chunks of maximum size @max_ents.
+ *   Thus if @nents is bigger than @max_ents, the scatterlists will be
+ *   chained in units of @max_ents.
+ *
+ * Notes:
+ *   If this function returns non-0 (eg failure), the caller must call
+ *   __sg_free_table() to cleanup any leftover allocations.
+ *
+ **/
+static inline int
+__sg_alloc_table(struct sg_table *table, unsigned int nents,
+		unsigned int max_ents, gfp_t gfp_mask)
+{
+	struct scatterlist *sg, *prv;
+	unsigned int left;
+
+	memset(table, 0, sizeof(*table));
+
+	if (nents == 0)
+		return -EINVAL;
+	left = nents;
+	prv = NULL;
+	do {
+		unsigned int sg_size, alloc_size = left;
+
+		if (alloc_size > max_ents) {
+			alloc_size = max_ents;
+			sg_size = alloc_size - 1;
+		} else
+			sg_size = alloc_size;
+
+		left -= sg_size;
+
+		sg = kmalloc(alloc_size * sizeof(struct scatterlist), gfp_mask);
+		if (unlikely(!sg)) {
+		/*
+		 * Adjust entry count to reflect that the last
+		 * entry of the previous table won't be used for
+		 * linkage.  Without this, sg_kfree() may get
+		 * confused.
+		 */
+			if (prv)
+				table->nents = ++table->orig_nents;
+
+			return -ENOMEM;
+		}
+
+		sg_init_table(sg, alloc_size);
+		table->nents = table->orig_nents += sg_size;
+
+		/*
+		 * If this is the first mapping, assign the sg table header.
+		 * If this is not the first mapping, chain previous part.
+		 */
+		if (prv)
+			sg_chain(prv, max_ents, sg);
+		else
+			table->sgl = sg;
+
+		/*
+		* If no more entries after this one, mark the end
+		*/
+		if (!left)
+			sg_mark_end(&sg[sg_size - 1]);
+
+		prv = sg;
+	} while (left);
+
+	return 0;
+}
+
+/**
+ * sg_alloc_table - Allocate and initialize an sg table
+ * @table:      The sg table header to use
+ * @nents:      Number of entries in sg list
+ * @gfp_mask:   GFP allocation mask
+ *
+ *  Description:
+ *    Allocate and initialize an sg table. If @nents@ is larger than
+ *    SG_MAX_SINGLE_ALLOC a chained sg table will be setup.
+ *
+ **/
+
+static inline int
+sg_alloc_table(struct sg_table *table, unsigned int nents, gfp_t gfp_mask)
+{
+	int ret;
+
+	ret = __sg_alloc_table(table, nents, SG_MAX_SINGLE_ALLOC,
+		gfp_mask);
+	if (unlikely(ret))
+		__sg_free_table(table, SG_MAX_SINGLE_ALLOC);
+
+	return ret;
+}
+
 #define	for_each_sg(sglist, sg, sgmax, _itr)				\
 	for (_itr = 0, sg = (sglist); _itr < (sgmax); _itr++, sg = sg_next(sg))
 

Modified: stable/9/sys/ofed/include/linux/vmalloc.h
==============================================================================
--- stable/9/sys/ofed/include/linux/vmalloc.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/linux/vmalloc.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -30,7 +30,7 @@
 #ifndef _LINUX_VMALLOC_H_
 #define	_LINUX_VMALLOC_H_
 
-#include <asm/page.h>
+#include <linux/page.h>
 
 #define	VM_MAP		0x0000
 #define	PAGE_KERNEL	0x0000

Modified: stable/9/sys/ofed/include/rdma/ib_addr.h
==============================================================================
--- stable/9/sys/ofed/include/rdma/ib_addr.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/rdma/ib_addr.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -41,7 +41,6 @@
 #include <linux/socket.h>
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_pack.h>
-#include <linux/ethtool.h>
 #include <linux/if_vlan.h>
 
 struct rdma_addr_client {

Modified: stable/9/sys/ofed/include/rdma/ib_smi.h
==============================================================================
--- stable/9/sys/ofed/include/rdma/ib_smi.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/rdma/ib_smi.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -38,6 +38,7 @@
 #define IB_SMI_H
 
 #include <rdma/ib_mad.h>
+#include <asm/byteorder.h>
 
 #define IB_SMP_DATA_SIZE			64
 #define IB_SMP_MAX_PATH_HOPS			64

Modified: stable/9/sys/ofed/include/rdma/ib_user_cm.h
==============================================================================
--- stable/9/sys/ofed/include/rdma/ib_user_cm.h	Thu Oct 30 16:57:56 2014	(r273867)
+++ stable/9/sys/ofed/include/rdma/ib_user_cm.h	Thu Oct 30 17:05:32 2014	(r273868)
@@ -34,6 +34,7 @@
 #ifndef IB_USER_CM_H
 #define IB_USER_CM_H
 
+#include <linux/types.h>
 #include <rdma/ib_user_sa.h>
 
 #define IB_USER_CM_ABI_VERSION 5


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