Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband/rdma updates from Roland Dreier:
 "Main set of InfiniBand/RDMA updates for 3.17 merge window:

   - MR reregistration support
   - MAD support for RMPP in userspace
   - iSER and SRP initiator updates
   - ocrdma hardware driver updates
   - other fixes..."

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits)
  IB/srp: Fix return value check in srp_init_module()
  RDMA/ocrdma: report asic-id in query device
  RDMA/ocrdma: Update sli data structure for endianness
  RDMA/ocrdma: Obtain SL from device structure
  RDMA/uapi: Include socket.h in rdma_user_cm.h
  IB/srpt: Handle GID change events
  IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0]
  IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0]
  RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf()
  IPoIB: Remove unnecessary test for NULL before debugfs_remove()
  IB/mad: Add user space RMPP support
  IB/mad: add new ioctl to ABI to support new registration options
  IB/mad: Add dev_notice messages for various umad/mad registration failures
  IB/mad: Update module to [pr|dev]_* style print messages
  IB/ipoib: Avoid multicast join attempts with invalid P_key
  IB/umad: Update module to [pr|dev]_* style print messages
  IB/ipoib: Avoid flushing the workqueue from worker context
  IB/ipoib: Use P_Key change event instead of P_Key polling mechanism
  IB/ipath: Add P_Key change event support
  mlx4_core: Add support for secure-host and SMP firewall
  ...

7 files changed, 109 insertions, 2 deletions

diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index c8450366c130..379c02648ab3 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -116,6 +116,7 @@ enum {
         /* special QP and management commands */
         MLX4_CMD_CONF_SPECIAL_QP = 0x23,
         MLX4_CMD_MAD_IFC         = 0x24,
+        MLX4_CMD_MAD_DEMUX       = 0x203,
 
         /* multicast commands */
         MLX4_CMD_READ_MCG        = 0x25,
@@ -186,6 +187,12 @@ enum {
 };
 
 enum {
+        MLX4_CMD_MAD_DEMUX_CONFIG       = 0,
+        MLX4_CMD_MAD_DEMUX_QUERY_STATE  = 1,
+        MLX4_CMD_MAD_DEMUX_QUERY_RESTR  = 2, /* Query mad demux restrictions */
+};
+
+enum {
         MLX4_CMD_WRAPPED,
         MLX4_CMD_NATIVE
 };
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index e15b1544ea83..071f6b234604 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -183,6 +183,7 @@ enum {
         MLX4_DEV_CAP_FLAG2_UPDATE_QP            = 1LL <<  8,
         MLX4_DEV_CAP_FLAG2_DMFS_IPOIB           = 1LL <<  9,
         MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS       = 1LL <<  10,
+        MLX4_DEV_CAP_FLAG2_MAD_DEMUX            = 1LL <<  11,
 };
 
 enum {
@@ -273,6 +274,7 @@ enum {
         MLX4_PERM_REMOTE_WRITE  = 1 << 13,
         MLX4_PERM_ATOMIC        = 1 << 14,
         MLX4_PERM_BIND_MW       = 1 << 15,
+        MLX4_PERM_MASK          = 0xFC00
 };
 
 enum {
@@ -1254,6 +1256,21 @@ int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port);
 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port);
 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port,
                                  int enable);
+int mlx4_mr_hw_get_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
+                       struct mlx4_mpt_entry ***mpt_entry);
+int mlx4_mr_hw_write_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
+                         struct mlx4_mpt_entry **mpt_entry);
+int mlx4_mr_hw_change_pd(struct mlx4_dev *dev, struct mlx4_mpt_entry *mpt_entry,
+                         u32 pdn);
+int mlx4_mr_hw_change_access(struct mlx4_dev *dev,
+                             struct mlx4_mpt_entry *mpt_entry,
+                             u32 access);
+void mlx4_mr_hw_put_mpt(struct mlx4_dev *dev,
+                        struct mlx4_mpt_entry **mpt_entry);
+void mlx4_mr_rereg_mem_cleanup(struct mlx4_dev *dev, struct mlx4_mr *mr);
+int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr,
+                            u64 iova, u64 size, int npages,
+                            int page_shift, struct mlx4_mpt_entry *mpt_entry);
 
 /* Returns true if running in low memory profile (kdump kernel) */
 static inline bool mlx4_low_memory_profile(void)
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 3d81b90cc315..9bb99e983f58 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -40,6 +40,7 @@
 #include <linux/list.h>
 
 #include <rdma/ib_verbs.h>
+#include <uapi/rdma/ib_user_mad.h>
 
 /* Management base version */
 #define IB_MGMT_BASE_VERSION                    1
@@ -355,9 +356,13 @@ typedef void (*ib_mad_recv_handler)(struct ib_mad_agent *mad_agent,
  * @hi_tid: Access layer assigned transaction ID for this client.
  *   Unsolicited MADs sent by this client will have the upper 32-bits
  *   of their TID set to this value.
+ * @flags: registration flags
  * @port_num: Port number on which QP is registered
  * @rmpp_version: If set, indicates the RMPP version used by this agent.
  */
+enum {
+        IB_MAD_USER_RMPP = IB_USER_MAD_USER_RMPP,
+};
 struct ib_mad_agent {
         struct ib_device        *device;
         struct ib_qp            *qp;
@@ -367,6 +372,7 @@ struct ib_mad_agent {
         ib_mad_snoop_handler    snoop_handler;
         void                    *context;
         u32                     hi_tid;
+        u32                     flags;
         u8                      port_num;
         u8                      rmpp_version;
 };
@@ -426,6 +432,7 @@ struct ib_mad_recv_wc {
  *   in the range from 0x30 to 0x4f. Otherwise not used.
  * @method_mask: The caller will receive unsolicited MADs for any method
  *   where @method_mask = 1.
+ *
  */
 struct ib_mad_reg_req {
         u8      mgmt_class;
@@ -451,6 +458,7 @@ struct ib_mad_reg_req {
  * @recv_handler: The completion callback routine invoked for a received
  *   MAD.
  * @context: User specified context associated with the registration.
+ * @registration_flags: Registration flags to set for this agent
  */
 struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
                                            u8 port_num,
@@ -459,7 +467,8 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
                                            u8 rmpp_version,
                                            ib_mad_send_handler send_handler,
                                            ib_mad_recv_handler recv_handler,
-                                           void *context);
+                                           void *context,
+                                           u32 registration_flags);
 
 enum ib_mad_snoop_flags {
         /*IB_MAD_SNOOP_POSTED_SENDS        = 1,*/
@@ -661,4 +670,11 @@ void *ib_get_rmpp_segment(struct ib_mad_send_buf *send_buf, int seg_num);
  */
 void ib_free_send_mad(struct ib_mad_send_buf *send_buf);
 
+/**
+ * ib_mad_kernel_rmpp_agent - Returns if the agent is performing RMPP.
+ * @agent: the agent in question
+ * @return: true if agent is performing rmpp, false otherwise.
+ */
+int ib_mad_kernel_rmpp_agent(struct ib_mad_agent *agent);
+
 #endif /* IB_MAD_H */
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 7ccef342f724..ed44cc07a7b3 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1097,7 +1097,8 @@ struct ib_mr_attr {
 enum ib_mr_rereg_flags {
         IB_MR_REREG_TRANS       = 1,
         IB_MR_REREG_PD          = (1<<1),
-        IB_MR_REREG_ACCESS      = (1<<2)
+        IB_MR_REREG_ACCESS      = (1<<2),
+        IB_MR_REREG_SUPPORTED   = ((IB_MR_REREG_ACCESS << 1) - 1)
 };
 
 /**
@@ -1547,6 +1548,13 @@ struct ib_device {
                                                   u64 virt_addr,
                                                   int mr_access_flags,
                                                   struct ib_udata *udata);
+        int                        (*rereg_user_mr)(struct ib_mr *mr,
+                                                    int flags,
+                                                    u64 start, u64 length,
+                                                    u64 virt_addr,
+                                                    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);
diff --git a/include/uapi/rdma/ib_user_mad.h b/include/uapi/rdma/ib_user_mad.h
index d6fce1cbdb90..09f809f323ea 100644
--- a/include/uapi/rdma/ib_user_mad.h
+++ b/include/uapi/rdma/ib_user_mad.h
@@ -191,6 +191,45 @@ struct ib_user_mad_reg_req {
         __u8    rmpp_version;
 };
 
+/**
+ * ib_user_mad_reg_req2 - MAD registration request
+ *
+ * @id                 - Set by the _kernel_; used by userspace to identify the
+ *                       registered agent in future requests.
+ * @qpn                - Queue pair number; must be 0 or 1.
+ * @mgmt_class         - Indicates which management class of MADs should be
+ *                       receive by the caller.  This field is only required if
+ *                       the user wishes to receive unsolicited MADs, otherwise
+ *                       it should be 0.
+ * @mgmt_class_version - Indicates which version of MADs for the given
+ *                       management class to receive.
+ * @res                - Ignored.
+ * @flags              - additional registration flags; Must be in the set of
+ *                       flags defined in IB_USER_MAD_REG_FLAGS_CAP
+ * @method_mask        - The caller wishes to receive unsolicited MADs for the
+ *                       methods whose bit(s) is(are) set.
+ * @oui                - Indicates IEEE OUI to use when mgmt_class is a vendor
+ *                       class in the range from 0x30 to 0x4f. Otherwise not
+ *                       used.
+ * @rmpp_version       - If set, indicates the RMPP version to use.
+ */
+enum {
+        IB_USER_MAD_USER_RMPP = (1 << 0),
+};
+#define IB_USER_MAD_REG_FLAGS_CAP (IB_USER_MAD_USER_RMPP)
+struct ib_user_mad_reg_req2 {
+        __u32   id;
+        __u32   qpn;
+        __u8    mgmt_class;
+        __u8    mgmt_class_version;
+        __u16   res;
+        __u32   flags;
+        __u64   method_mask[2];
+        __u32   oui;
+        __u8    rmpp_version;
+        __u8    reserved[3];
+};
+
 #define IB_IOCTL_MAGIC          0x1b
 
 #define IB_USER_MAD_REGISTER_AGENT      _IOWR(IB_IOCTL_MAGIC, 1, \
@@ -200,4 +239,7 @@ struct ib_user_mad_reg_req {
 
 #define IB_USER_MAD_ENABLE_PKEY         _IO(IB_IOCTL_MAGIC, 3)
 
+#define IB_USER_MAD_REGISTER_AGENT2     _IOWR(IB_IOCTL_MAGIC, 4, \
+                                              struct ib_user_mad_reg_req2)
+
 #endif /* IB_USER_MAD_H */
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index cbfdd4ca9510..26daf55ff76e 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -276,6 +276,22 @@ struct ib_uverbs_reg_mr_resp {
         __u32 rkey;
 };
 
+struct ib_uverbs_rereg_mr {
+        __u64 response;
+        __u32 mr_handle;
+        __u32 flags;
+        __u64 start;
+        __u64 length;
+        __u64 hca_va;
+        __u32 pd_handle;
+        __u32 access_flags;
+};
+
+struct ib_uverbs_rereg_mr_resp {
+        __u32 lkey;
+        __u32 rkey;
+};
+
 struct ib_uverbs_dereg_mr {
         __u32 mr_handle;
 };
diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h
index 99b80abf360a..3066718eb120 100644
--- a/include/uapi/rdma/rdma_user_cm.h
+++ b/include/uapi/rdma/rdma_user_cm.h
@@ -34,6 +34,7 @@
 #define RDMA_USER_CM_H
 
 #include <linux/types.h>
+#include <linux/socket.h>
 #include <linux/in6.h>
 #include <rdma/ib_user_verbs.h>
 #include <rdma/ib_user_sa.h>