Linux-libre 4.5-gnu

7 files changed, 260 insertions, 167 deletions

diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index 11528591d..c34c90024 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -83,6 +83,8 @@ struct rdma_dev_addr {
 	int bound_dev_if;
 	enum rdma_transport_type transport;
 	struct net *net;
+	enum rdma_network_type network;
+	int hoplimit;
 };
 
 /**
@@ -91,8 +93,8 @@ struct rdma_dev_addr {
  *
  * The dev_addr->net field must be initialized.
  */
-int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr,
-		      u16 *vlan_id);
+int rdma_translate_ip(const struct sockaddr *addr,
+		      struct rdma_dev_addr *dev_addr, u16 *vlan_id);
 
 /**
  * rdma_resolve_ip - Resolve source and destination IP addresses to
@@ -117,6 +119,10 @@ int rdma_resolve_ip(struct rdma_addr_client *client,
 				     struct rdma_dev_addr *addr, void *context),
 		    void *context);
 
+int rdma_resolve_ip_route(struct sockaddr *src_addr,
+			  const struct sockaddr *dst_addr,
+			  struct rdma_dev_addr *addr);
+
 void rdma_addr_cancel(struct rdma_dev_addr *addr);
 
 int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev,
@@ -125,8 +131,10 @@ int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev,
 int rdma_addr_size(struct sockaddr *addr);
 
 int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id);
-int rdma_addr_find_dmac_by_grh(const union ib_gid *sgid, const union ib_gid *dgid,
-			       u8 *smac, u16 *vlan_id, int if_index);
+int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
+				 const union ib_gid *dgid,
+				 u8 *smac, u16 *vlan_id, int *if_index,
+				 int *hoplimit);
 
 static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr)
 {
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index 269a27cf0..e30f19bd4 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -60,6 +60,7 @@ int ib_get_cached_gid(struct ib_device    *device,
  *   a specified GID value occurs.
  * @device: The device to query.
  * @gid: The GID value to search for.
+ * @gid_type: The GID type to search for.
  * @ndev: In RoCE, the net device of the device. NULL means ignore.
  * @port_num: The port number of the device where the GID value was found.
  * @index: The index into the cached GID table where the GID was found.  This
@@ -70,6 +71,7 @@ int ib_get_cached_gid(struct ib_device    *device,
  */
 int ib_find_cached_gid(struct ib_device *device,
 		       const union ib_gid *gid,
+		       enum ib_gid_type gid_type,
 		       struct net_device *ndev,
 		       u8               *port_num,
 		       u16              *index);
@@ -79,6 +81,7 @@ int ib_find_cached_gid(struct ib_device *device,
  * GID value occurs
  * @device: The device to query.
  * @gid: The GID value to search for.
+ * @gid_type: The GID type to search for.
  * @port_num: The port number of the device where the GID value sould be
  *   searched.
  * @ndev: In RoCE, the net device of the device. Null means ignore.
@@ -90,6 +93,7 @@ int ib_find_cached_gid(struct ib_device *device,
  */
 int ib_find_cached_gid_by_port(struct ib_device *device,
 			       const union ib_gid *gid,
+			       enum ib_gid_type gid_type,
 			       u8               port_num,
 			       struct net_device *ndev,
 			       u16              *index);
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index ec9b44dd3..0ff049bd9 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -438,6 +438,7 @@ typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent,
 /**
  * ib_mad_recv_handler - callback handler for a received MAD.
  * @mad_agent: MAD agent requesting the received MAD.
+ * @send_buf: Send buffer if found, else NULL
  * @mad_recv_wc: Received work completion information on the received MAD.
  *
  * MADs received in response to a send request operation will be handed to
@@ -447,6 +448,7 @@ typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent,
  * modify the data referenced by @mad_recv_wc.
  */
 typedef void (*ib_mad_recv_handler)(struct ib_mad_agent *mad_agent,
+				    struct ib_mad_send_buf *send_buf,
 				    struct ib_mad_recv_wc *mad_recv_wc);
 
 /**
diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h
index e99d8f9a4..0f3daae44 100644
--- a/include/rdma/ib_pack.h
+++ b/include/rdma/ib_pack.h
@@ -41,6 +41,8 @@ enum {
 	IB_ETH_BYTES  = 14,
 	IB_VLAN_BYTES = 4,
 	IB_GRH_BYTES  = 40,
+	IB_IP4_BYTES  = 20,
+	IB_UDP_BYTES  = 8,
 	IB_BTH_BYTES  = 12,
 	IB_DETH_BYTES = 8
 };
@@ -223,6 +225,27 @@ struct ib_unpacked_eth {
 	__be16	type;
 };
 
+struct ib_unpacked_ip4 {
+	u8	ver;
+	u8	hdr_len;
+	u8	tos;
+	__be16	tot_len;
+	__be16	id;
+	__be16	frag_off;
+	u8	ttl;
+	u8	protocol;
+	__sum16	check;
+	__be32	saddr;
+	__be32	daddr;
+};
+
+struct ib_unpacked_udp {
+	__be16	sport;
+	__be16	dport;
+	__be16	length;
+	__be16	csum;
+};
+
 struct ib_unpacked_vlan {
 	__be16  tag;
 	__be16  type;
@@ -237,6 +260,10 @@ struct ib_ud_header {
 	struct ib_unpacked_vlan vlan;
 	int			grh_present;
 	struct ib_unpacked_grh	grh;
+	int			ipv4_present;
+	struct ib_unpacked_ip4	ip4;
+	int			udp_present;
+	struct ib_unpacked_udp	udp;
 	struct ib_unpacked_bth	bth;
 	struct ib_unpacked_deth deth;
 	int			immediate_present;
@@ -253,13 +280,17 @@ void ib_unpack(const struct ib_field        *desc,
 	       void                         *buf,
 	       void                         *structure);
 
-void ib_ud_header_init(int		    payload_bytes,
-		       int		    lrh_present,
-		       int		    eth_present,
-		       int		    vlan_present,
-		       int		    grh_present,
-		       int		    immediate_present,
-		       struct ib_ud_header *header);
+__sum16 ib_ud_ip4_csum(struct ib_ud_header *header);
+
+int ib_ud_header_init(int		    payload_bytes,
+		      int		    lrh_present,
+		      int		    eth_present,
+		      int		    vlan_present,
+		      int		    grh_present,
+		      int		    ip_version,
+		      int		    udp_present,
+		      int		    immediate_present,
+		      struct ib_ud_header *header);
 
 int ib_ud_header_pack(struct ib_ud_header *header,
 		      void                *buf);
diff --git a/include/rdma/ib_pma.h b/include/rdma/ib_pma.h
index a5889f188..2f8a65c1f 100644
--- a/include/rdma/ib_pma.h
+++ b/include/rdma/ib_pma.h
@@ -42,6 +42,7 @@
  */
 #define IB_PMA_CLASS_CAP_ALLPORTSELECT  cpu_to_be16(1 << 8)
 #define IB_PMA_CLASS_CAP_EXT_WIDTH      cpu_to_be16(1 << 9)
+#define IB_PMA_CLASS_CAP_EXT_WIDTH_NOIETF cpu_to_be16(1 << 10)
 #define IB_PMA_CLASS_CAP_XMIT_WAIT      cpu_to_be16(1 << 12)
 
 #define IB_PMA_CLASS_PORT_INFO          cpu_to_be16(0x0001)
diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
index 301969552..cdc1c81aa 100644
--- a/include/rdma/ib_sa.h
+++ b/include/rdma/ib_sa.h
@@ -160,6 +160,7 @@ struct ib_sa_path_rec {
 	int	     ifindex;
 	/* ignored in IB */
 	struct net  *net;
+	enum ib_gid_type gid_type;
 };
 
 static inline struct net_device *ib_get_ndev_from_path(struct ib_sa_path_rec *rec)
@@ -402,6 +403,8 @@ int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
  */
 int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
 			     struct ib_sa_mcmember_rec *rec,
+			     struct net_device *ndev,
+			     enum ib_gid_type gid_type,
 			     struct ib_ah_attr *ah_attr);
 
 /**
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 120da1d7f..284b00c8f 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -49,13 +49,19 @@
 #include <linux/scatterlist.h>
 #include <linux/workqueue.h>
 #include <linux/socket.h>
+#include <linux/irq_poll.h>
 #include <uapi/linux/if_ether.h>
+#include <net/ipv6.h>
+#include <net/ip.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <linux/atomic.h>
 #include <linux/mmu_notifier.h>
 #include <asm/uaccess.h>
 
 extern struct workqueue_struct *ib_wq;
+extern struct workqueue_struct *ib_comp_wq;
 
 union ib_gid {
 	u8	raw[16];
@@ -67,7 +73,17 @@ union ib_gid {
 
 extern union ib_gid zgid;
 
+enum ib_gid_type {
+	/* If link layer is Ethernet, this is RoCE V1 */
+	IB_GID_TYPE_IB        = 0,
+	IB_GID_TYPE_ROCE      = 0,
+	IB_GID_TYPE_ROCE_UDP_ENCAP = 1,
+	IB_GID_TYPE_SIZE
+};
+
+#define ROCE_V2_UDP_DPORT      4791
 struct ib_gid_attr {
+	enum ib_gid_type	gid_type;
 	struct net_device	*ndev;
 };
 
@@ -98,6 +114,35 @@ enum rdma_protocol_type {
 __attribute_const__ enum rdma_transport_type
 rdma_node_get_transport(enum rdma_node_type node_type);
 
+enum rdma_network_type {
+	RDMA_NETWORK_IB,
+	RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB,
+	RDMA_NETWORK_IPV4,
+	RDMA_NETWORK_IPV6
+};
+
+static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type)
+{
+	if (network_type == RDMA_NETWORK_IPV4 ||
+	    network_type == RDMA_NETWORK_IPV6)
+		return IB_GID_TYPE_ROCE_UDP_ENCAP;
+
+	/* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */
+	return IB_GID_TYPE_IB;
+}
+
+static inline enum rdma_network_type ib_gid_to_network_type(enum ib_gid_type gid_type,
+							    union ib_gid *gid)
+{
+	if (gid_type == IB_GID_TYPE_IB)
+		return RDMA_NETWORK_IB;
+
+	if (ipv6_addr_v4mapped((struct in6_addr *)gid))
+		return RDMA_NETWORK_IPV4;
+	else
+		return RDMA_NETWORK_IPV6;
+}
+
 enum rdma_link_layer {
 	IB_LINK_LAYER_UNSPECIFIED,
 	IB_LINK_LAYER_INFINIBAND,
@@ -105,24 +150,32 @@ enum rdma_link_layer {
 };
 
 enum ib_device_cap_flags {
-	IB_DEVICE_RESIZE_MAX_WR		= 1,
-	IB_DEVICE_BAD_PKEY_CNTR		= (1<<1),
-	IB_DEVICE_BAD_QKEY_CNTR		= (1<<2),
-	IB_DEVICE_RAW_MULTI		= (1<<3),
-	IB_DEVICE_AUTO_PATH_MIG		= (1<<4),
-	IB_DEVICE_CHANGE_PHY_PORT	= (1<<5),
-	IB_DEVICE_UD_AV_PORT_ENFORCE	= (1<<6),
-	IB_DEVICE_CURR_QP_STATE_MOD	= (1<<7),
-	IB_DEVICE_SHUTDOWN_PORT		= (1<<8),
-	IB_DEVICE_INIT_TYPE		= (1<<9),
-	IB_DEVICE_PORT_ACTIVE_EVENT	= (1<<10),
-	IB_DEVICE_SYS_IMAGE_GUID	= (1<<11),
-	IB_DEVICE_RC_RNR_NAK_GEN	= (1<<12),
-	IB_DEVICE_SRQ_RESIZE		= (1<<13),
-	IB_DEVICE_N_NOTIFY_CQ		= (1<<14),
-	IB_DEVICE_LOCAL_DMA_LKEY	= (1<<15),
-	IB_DEVICE_RESERVED		= (1<<16), /* old SEND_W_INV */
-	IB_DEVICE_MEM_WINDOW		= (1<<17),
+	IB_DEVICE_RESIZE_MAX_WR			= (1 << 0),
+	IB_DEVICE_BAD_PKEY_CNTR			= (1 << 1),
+	IB_DEVICE_BAD_QKEY_CNTR			= (1 << 2),
+	IB_DEVICE_RAW_MULTI			= (1 << 3),
+	IB_DEVICE_AUTO_PATH_MIG			= (1 << 4),
+	IB_DEVICE_CHANGE_PHY_PORT		= (1 << 5),
+	IB_DEVICE_UD_AV_PORT_ENFORCE		= (1 << 6),
+	IB_DEVICE_CURR_QP_STATE_MOD		= (1 << 7),
+	IB_DEVICE_SHUTDOWN_PORT			= (1 << 8),
+	IB_DEVICE_INIT_TYPE			= (1 << 9),
+	IB_DEVICE_PORT_ACTIVE_EVENT		= (1 << 10),
+	IB_DEVICE_SYS_IMAGE_GUID		= (1 << 11),
+	IB_DEVICE_RC_RNR_NAK_GEN		= (1 << 12),
+	IB_DEVICE_SRQ_RESIZE			= (1 << 13),
+	IB_DEVICE_N_NOTIFY_CQ			= (1 << 14),
+
+	/*
+	 * This device supports a per-device lkey or stag that can be
+	 * used without performing a memory registration for the local
+	 * memory.  Note that ULPs should never check this flag, but
+	 * instead of use the local_dma_lkey flag in the ib_pd structure,
+	 * which will always contain a usable lkey.
+	 */
+	IB_DEVICE_LOCAL_DMA_LKEY		= (1 << 15),
+	IB_DEVICE_RESERVED /* old SEND_W_INV */	= (1 << 16),
+	IB_DEVICE_MEM_WINDOW			= (1 << 17),
 	/*
 	 * Devices should set IB_DEVICE_UD_IP_SUM if they support
 	 * insertion of UDP and TCP checksum on outgoing UD IPoIB
@@ -130,18 +183,35 @@ enum ib_device_cap_flags {
 	 * incoming messages.  Setting this flag implies that the
 	 * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
 	 */
-	IB_DEVICE_UD_IP_CSUM		= (1<<18),
-	IB_DEVICE_UD_TSO		= (1<<19),
-	IB_DEVICE_XRC			= (1<<20),
-	IB_DEVICE_MEM_MGT_EXTENSIONS	= (1<<21),
-	IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22),
-	IB_DEVICE_MEM_WINDOW_TYPE_2A	= (1<<23),
-	IB_DEVICE_MEM_WINDOW_TYPE_2B	= (1<<24),
-	IB_DEVICE_RC_IP_CSUM		= (1<<25),
-	IB_DEVICE_RAW_IP_CSUM		= (1<<26),
-	IB_DEVICE_MANAGED_FLOW_STEERING = (1<<29),
-	IB_DEVICE_SIGNATURE_HANDOVER	= (1<<30),
-	IB_DEVICE_ON_DEMAND_PAGING	= (1<<31),
+	IB_DEVICE_UD_IP_CSUM			= (1 << 18),
+	IB_DEVICE_UD_TSO			= (1 << 19),
+	IB_DEVICE_XRC				= (1 << 20),
+
+	/*
+	 * This device supports the IB "base memory management extension",
+	 * which includes support for fast registrations (IB_WR_REG_MR,
+	 * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs).  This flag should
+	 * also be set by any iWarp device which must support FRs to comply
+	 * to the iWarp verbs spec.  iWarp devices also support the
+	 * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the
+	 * stag.
+	 */
+	IB_DEVICE_MEM_MGT_EXTENSIONS		= (1 << 21),
+	IB_DEVICE_BLOCK_MULTICAST_LOOPBACK	= (1 << 22),
+	IB_DEVICE_MEM_WINDOW_TYPE_2A		= (1 << 23),
+	IB_DEVICE_MEM_WINDOW_TYPE_2B		= (1 << 24),
+	IB_DEVICE_RC_IP_CSUM			= (1 << 25),
+	IB_DEVICE_RAW_IP_CSUM			= (1 << 26),
+	/*
+	 * Devices should set IB_DEVICE_CROSS_CHANNEL if they
+	 * support execution of WQEs that involve synchronization
+	 * of I/O operations with single completion queue managed
+	 * by hardware.
+	 */
+	IB_DEVICE_CROSS_CHANNEL		= (1 << 27),
+	IB_DEVICE_MANAGED_FLOW_STEERING		= (1 << 29),
+	IB_DEVICE_SIGNATURE_HANDOVER		= (1 << 30),
+	IB_DEVICE_ON_DEMAND_PAGING		= (1 << 31),
 };
 
 enum ib_signature_prot_cap {
@@ -184,6 +254,7 @@ struct ib_odp_caps {
 
 enum ib_cq_creation_flags {
 	IB_CQ_FLAGS_TIMESTAMP_COMPLETION   = 1 << 0,
+	IB_CQ_FLAGS_IGNORE_OVERRUN	   = 1 << 1,
 };
 
 struct ib_cq_init_attr {
@@ -393,6 +464,7 @@ union rdma_protocol_stats {
 #define RDMA_CORE_CAP_PROT_IB           0x00100000
 #define RDMA_CORE_CAP_PROT_ROCE         0x00200000
 #define RDMA_CORE_CAP_PROT_IWARP        0x00400000
+#define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000
 
 #define RDMA_CORE_PORT_IBA_IB          (RDMA_CORE_CAP_PROT_IB  \
 					| RDMA_CORE_CAP_IB_MAD \
@@ -405,6 +477,12 @@ union rdma_protocol_stats {
 					| RDMA_CORE_CAP_IB_CM   \
 					| RDMA_CORE_CAP_AF_IB   \
 					| RDMA_CORE_CAP_ETH_AH)
+#define RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP			\
+					(RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP \
+					| RDMA_CORE_CAP_IB_MAD  \
+					| RDMA_CORE_CAP_IB_CM   \
+					| RDMA_CORE_CAP_AF_IB   \
+					| RDMA_CORE_CAP_ETH_AH)
 #define RDMA_CORE_PORT_IWARP           (RDMA_CORE_CAP_PROT_IWARP \
 					| RDMA_CORE_CAP_IW_CM)
 #define RDMA_CORE_PORT_INTEL_OPA       (RDMA_CORE_PORT_IBA_IB  \
@@ -519,6 +597,17 @@ struct ib_grh {
 	union ib_gid	dgid;
 };
 
+union rdma_network_hdr {
+	struct ib_grh ibgrh;
+	struct {
+		/* The IB spec states that if it's IPv4, the header
+		 * is located in the last 20 bytes of the header.
+		 */
+		u8		reserved[20];
+		struct iphdr	roce4grh;
+	};
+};
+
 enum {
 	IB_MULTICAST_QPN = 0xffffff
 };
@@ -734,7 +823,6 @@ enum ib_wc_opcode {
 	IB_WC_RDMA_READ,
 	IB_WC_COMP_SWAP,
 	IB_WC_FETCH_ADD,
-	IB_WC_BIND_MW,
 	IB_WC_LSO,
 	IB_WC_LOCAL_INV,
 	IB_WC_REG_MR,
@@ -755,10 +843,14 @@ enum ib_wc_flags {
 	IB_WC_IP_CSUM_OK	= (1<<3),
 	IB_WC_WITH_SMAC		= (1<<4),
 	IB_WC_WITH_VLAN		= (1<<5),
+	IB_WC_WITH_NETWORK_HDR_TYPE	= (1<<6),
 };
 
 struct ib_wc {
-	u64			wr_id;
+	union {
+		u64		wr_id;
+		struct ib_cqe	*wr_cqe;
+	};
 	enum ib_wc_status	status;
 	enum ib_wc_opcode	opcode;
 	u32			vendor_err;
@@ -777,6 +869,7 @@ struct ib_wc {
 	u8			port_num;	/* valid only for DR SMPs on switches */
 	u8			smac[ETH_ALEN];
 	u16			vlan_id;
+	u8			network_hdr_type;
 };
 
 enum ib_cq_notify_flags {
@@ -866,6 +959,9 @@ enum ib_qp_type {
 enum ib_qp_create_flags {
 	IB_QP_CREATE_IPOIB_UD_LSO		= 1 << 0,
 	IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK	= 1 << 1,
+	IB_QP_CREATE_CROSS_CHANNEL              = 1 << 2,
+	IB_QP_CREATE_MANAGED_SEND               = 1 << 3,
+	IB_QP_CREATE_MANAGED_RECV               = 1 << 4,
 	IB_QP_CREATE_NETIF_QP			= 1 << 5,
 	IB_QP_CREATE_SIGNATURE_EN		= 1 << 6,
 	IB_QP_CREATE_USE_GFP_NOIO		= 1 << 7,
@@ -1027,7 +1123,6 @@ enum ib_wr_opcode {
 	IB_WR_REG_MR,
 	IB_WR_MASKED_ATOMIC_CMP_AND_SWP,
 	IB_WR_MASKED_ATOMIC_FETCH_AND_ADD,
-	IB_WR_BIND_MW,
 	IB_WR_REG_SIG_MR,
 	/* reserve values for low level drivers' internal use.
 	 * These values will not be used at all in the ib core layer.
@@ -1062,26 +1157,16 @@ struct ib_sge {
 	u32	lkey;
 };
 
-/**
- * struct ib_mw_bind_info - Parameters for a memory window bind operation.
- * @mr: A memory region to bind the memory window to.
- * @addr: The address where the memory window should begin.
- * @length: The length of the memory window, in bytes.
- * @mw_access_flags: Access flags from enum ib_access_flags for the window.
- *
- * This struct contains the shared parameters for type 1 and type 2
- * memory window bind operations.
- */
-struct ib_mw_bind_info {
-	struct ib_mr   *mr;
-	u64		addr;
-	u64		length;
-	int		mw_access_flags;
+struct ib_cqe {
+	void (*done)(struct ib_cq *cq, struct ib_wc *wc);
 };
 
 struct ib_send_wr {
 	struct ib_send_wr      *next;
-	u64			wr_id;
+	union {
+		u64		wr_id;
+		struct ib_cqe	*wr_cqe;
+	};
 	struct ib_sge	       *sg_list;
 	int			num_sge;
 	enum ib_wr_opcode	opcode;
@@ -1147,19 +1232,6 @@ static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr)
 	return container_of(wr, struct ib_reg_wr, wr);
 }
 
-struct ib_bind_mw_wr {
-	struct ib_send_wr	wr;
-	struct ib_mw		*mw;
-	/* The new rkey for the memory window. */
-	u32			rkey;
-	struct ib_mw_bind_info	bind_info;
-};
-
-static inline struct ib_bind_mw_wr *bind_mw_wr(struct ib_send_wr *wr)
-{
-	return container_of(wr, struct ib_bind_mw_wr, wr);
-}
-
 struct ib_sig_handover_wr {
 	struct ib_send_wr	wr;
 	struct ib_sig_attrs    *sig_attrs;
@@ -1175,7 +1247,10 @@ static inline struct ib_sig_handover_wr *sig_handover_wr(struct ib_send_wr *wr)
 
 struct ib_recv_wr {
 	struct ib_recv_wr      *next;
-	u64			wr_id;
+	union {
+		u64		wr_id;
+		struct ib_cqe	*wr_cqe;
+	};
 	struct ib_sge	       *sg_list;
 	int			num_sge;
 };
@@ -1190,20 +1265,10 @@ enum ib_access_flags {
 	IB_ACCESS_ON_DEMAND     = (1<<6),
 };
 
-struct ib_phys_buf {
-	u64      addr;
-	u64      size;
-};
-
-struct ib_mr_attr {
-	struct ib_pd	*pd;
-	u64		device_virt_addr;
-	u64		size;
-	int		mr_access_flags;
-	u32		lkey;
-	u32		rkey;
-};
-
+/*
+ * XXX: these are apparently used for ->rereg_user_mr, no idea why they
+ * are hidden here instead of a uapi header!
+ */
 enum ib_mr_rereg_flags {
 	IB_MR_REREG_TRANS	= 1,
 	IB_MR_REREG_PD		= (1<<1),
@@ -1211,18 +1276,6 @@ enum ib_mr_rereg_flags {
 	IB_MR_REREG_SUPPORTED	= ((IB_MR_REREG_ACCESS << 1) - 1)
 };
 
-/**
- * struct ib_mw_bind - Parameters for a type 1 memory window bind operation.
- * @wr_id:      Work request id.
- * @send_flags: Flags from ib_send_flags enum.
- * @bind_info:  More parameters of the bind operation.
- */
-struct ib_mw_bind {
-	u64                    wr_id;
-	int                    send_flags;
-	struct ib_mw_bind_info bind_info;
-};
-
 struct ib_fmr_attr {
 	int	max_pages;
 	int	max_maps;
@@ -1307,6 +1360,12 @@ struct ib_ah {
 
 typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context);
 
+enum ib_poll_context {
+	IB_POLL_DIRECT,		/* caller context, no hw completions */
+	IB_POLL_SOFTIRQ,	/* poll from softirq context */
+	IB_POLL_WORKQUEUE,	/* poll from workqueue */
+};
+
 struct ib_cq {
 	struct ib_device       *device;
 	struct ib_uobject      *uobject;
@@ -1315,6 +1374,12 @@ struct ib_cq {
 	void                   *cq_context;
 	int               	cqe;
 	atomic_t          	usecnt; /* count number of work queues */
+	enum ib_poll_context	poll_ctx;
+	struct ib_wc		*wc;
+	union {
+		struct irq_poll		iop;
+		struct work_struct	work;
+	};
 };
 
 struct ib_srq {
@@ -1363,7 +1428,6 @@ struct ib_mr {
 	u64		   iova;
 	u32		   length;
 	unsigned int	   page_size;
-	atomic_t	   usecnt; /* count number of MWs */
 };
 
 struct ib_mw {
@@ -1724,11 +1788,6 @@ struct ib_device {
 						      int wc_cnt);
 	struct ib_mr *             (*get_dma_mr)(struct ib_pd *pd,
 						 int mr_access_flags);
-	struct ib_mr *             (*reg_phys_mr)(struct ib_pd *pd,
-						  struct ib_phys_buf *phys_buf_array,
-						  int num_phys_buf,
-						  int mr_access_flags,
-						  u64 *iova_start);
 	struct ib_mr *             (*reg_user_mr)(struct ib_pd *pd,
 						  u64 start, u64 length,
 						  u64 virt_addr,
@@ -1741,8 +1800,6 @@ struct ib_device {
 						    int mr_access_flags,
 						    struct ib_pd *pd,
 						    struct ib_udata *udata);
-	int                        (*query_mr)(struct ib_mr *mr,
-					       struct ib_mr_attr *mr_attr);
 	int                        (*dereg_mr)(struct ib_mr *mr);
 	struct ib_mr *		   (*alloc_mr)(struct ib_pd *pd,
 					       enum ib_mr_type mr_type,
@@ -1750,18 +1807,8 @@ struct ib_device {
 	int                        (*map_mr_sg)(struct ib_mr *mr,
 						struct scatterlist *sg,
 						int sg_nents);
-	int                        (*rereg_phys_mr)(struct ib_mr *mr,
-						    int mr_rereg_mask,
-						    struct ib_pd *pd,
-						    struct ib_phys_buf *phys_buf_array,
-						    int num_phys_buf,
-						    int mr_access_flags,
-						    u64 *iova_start);
 	struct ib_mw *             (*alloc_mw)(struct ib_pd *pd,
 					       enum ib_mw_type type);
-	int                        (*bind_mw)(struct ib_qp *qp,
-					      struct ib_mw *mw,
-					      struct ib_mw_bind *mw_bind);
 	int                        (*dealloc_mw)(struct ib_mw *mw);
 	struct ib_fmr *	           (*alloc_fmr)(struct ib_pd *pd,
 						int mr_access_flags,
@@ -1823,6 +1870,7 @@ struct ib_device {
 	u16                          is_switch:1;
 	u8                           node_type;
 	u8                           phys_port_cnt;
+	struct ib_device_attr        attrs;
 
 	/**
 	 * The following mandatory functions are used only at device
@@ -1888,6 +1936,31 @@ static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len
 	return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0;
 }
 
+static inline bool ib_is_udata_cleared(struct ib_udata *udata,
+				       size_t offset,
+				       size_t len)
+{
+	const void __user *p = udata->inbuf + offset;
+	bool ret = false;
+	u8 *buf;
+
+	if (len > USHRT_MAX)
+		return false;
+
+	buf = kmalloc(len, GFP_KERNEL);
+	if (!buf)
+		return false;
+
+	if (copy_from_user(buf, p, len))
+		goto free;
+
+	ret = !memchr_inv(buf, 0, len);
+
+free:
+	kfree(buf);
+	return ret;
+}
+
 /**
  * ib_modify_qp_is_ok - Check that the supplied attribute mask
  * contains all required attributes and no attributes not allowed for
@@ -1912,9 +1985,6 @@ int ib_register_event_handler  (struct ib_event_handler *event_handler);
 int ib_unregister_event_handler(struct ib_event_handler *event_handler);
 void ib_dispatch_event(struct ib_event *event);
 
-int ib_query_device(struct ib_device *device,
-		    struct ib_device_attr *device_attr);
-
 int ib_query_port(struct ib_device *device,
 		  u8 port_num, struct ib_port_attr *port_attr);
 
@@ -1968,6 +2038,17 @@ static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num)
 
 static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num)
 {
+	return device->port_immutable[port_num].core_cap_flags &
+		(RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP);
+}
+
+static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num)
+{
+	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP;
+}
+
+static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num)
+{
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE;
 }
 
@@ -1978,8 +2059,8 @@ static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_n
 
 static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num)
 {
-	return device->port_immutable[port_num].core_cap_flags &
-		(RDMA_CORE_CAP_PROT_IB | RDMA_CORE_CAP_PROT_ROCE);
+	return rdma_protocol_ib(device, port_num) ||
+		rdma_protocol_roce(device, port_num);
 }
 
 /**
@@ -2220,7 +2301,8 @@ int ib_modify_port(struct ib_device *device,
 		   struct ib_port_modify *port_modify);
 
 int ib_find_gid(struct ib_device *device, union ib_gid *gid,
-		struct net_device *ndev, u8 *port_num, u16 *index);
+		enum ib_gid_type gid_type, struct net_device *ndev,
+		u8 *port_num, u16 *index);
 
 int ib_find_pkey(struct ib_device *device,
 		 u8 port_num, u16 pkey, u16 *index);
@@ -2454,6 +2536,11 @@ static inline int ib_post_recv(struct ib_qp *qp,
 	return qp->device->post_recv(qp, recv_wr, bad_recv_wr);
 }
 
+struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
+		int nr_cqe, int comp_vector, enum ib_poll_context poll_ctx);
+void ib_free_cq(struct ib_cq *cq);
+int ib_process_cq_direct(struct ib_cq *cq, int budget);
+
 /**
  * ib_create_cq - Creates a CQ on the specified device.
  * @device: The device on which to create the CQ.
@@ -2839,13 +2926,6 @@ static inline void ib_dma_free_coherent(struct ib_device *dev,
 }
 
 /**
- * ib_query_mr - Retrieves information about a specific memory region.
- * @mr: The memory region to retrieve information about.
- * @mr_attr: The attributes of the specified memory region.
- */
-int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr);
-
-/**
  * ib_dereg_mr - Deregisters a memory region and removes it from the
  *   HCA translation table.
  * @mr: The memory region to deregister.
@@ -2882,42 +2962,6 @@ static inline u32 ib_inc_rkey(u32 rkey)
 }
 
 /**
- * ib_alloc_mw - Allocates a memory window.
- * @pd: The protection domain associated with the memory window.
- * @type: The type of the memory window (1 or 2).
- */
-struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
-
-/**
- * ib_bind_mw - Posts a work request to the send queue of the specified
- *   QP, which binds the memory window to the given address range and
- *   remote access attributes.
- * @qp: QP to post the bind work request on.
- * @mw: The memory window to bind.
- * @mw_bind: Specifies information about the memory window, including
- *   its address range, remote access rights, and associated memory region.
- *
- * If there is no immediate error, the function will update the rkey member
- * of the mw parameter to its new value. The bind operation can still fail
- * asynchronously.
- */
-static inline int ib_bind_mw(struct ib_qp *qp,
-			     struct ib_mw *mw,
-			     struct ib_mw_bind *mw_bind)
-{
-	/* XXX reference counting in corresponding MR? */
-	return mw->device->bind_mw ?
-		mw->device->bind_mw(qp, mw, mw_bind) :
-		-ENOSYS;
-}
-
-/**
- * ib_dealloc_mw - Deallocates a memory window.
- * @mw: The memory window to deallocate.
- */
-int ib_dealloc_mw(struct ib_mw *mw);
-
-/**
  * ib_alloc_fmr - Allocates a unmapped fast memory region.
  * @pd: The protection domain associated with the unmapped region.
  * @mr_access_flags: Specifies the memory access rights.