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

Pull infiniband updates from Roland Dreier:
 "First batch of InfiniBand/RDMA changes for the 3.7 merge window:
   - mlx4 IB support for SR-IOV
   - A couple of SRP initiator fixes
   - Batch of nes hardware driver fixes
   - Fix for long-standing use-after-free crash in IPoIB
   - Other miscellaneous fixes"

This merge also removes a new use of __cancel_delayed_work(), and
replaces it with the regular cancel_delayed_work() that is now irq-safe
thanks to the workqueue updates.

That said, I suspect the sequence in question should probably use
"mod_delayed_work()".  I just did the minimal "don't use deprecated
functions" fixup, though.

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (45 commits)
  IB/qib: Fix local access validation for user MRs
  mlx4_core: Disable SENSE_PORT for multifunction devices
  mlx4_core: Clean up enabling of SENSE_PORT for older (ConnectX-1/-2) HCAs
  mlx4_core: Stash PCI ID driver_data in mlx4_priv structure
  IB/srp: Avoid having aborted requests hang
  IB/srp: Fix use-after-free in srp_reset_req()
  IB/qib: Add a qib driver version
  RDMA/nes: Fix compilation error when nes_debug is enabled
  RDMA/nes: Print hardware resource type
  RDMA/nes: Fix for crash when TX checksum offload is off
  RDMA/nes: Cosmetic changes
  RDMA/nes: Fix for incorrect MSS when TSO is on
  RDMA/nes: Fix incorrect resolving of the loopback MAC address
  mlx4_core: Fix crash on uninitialized priv->cmd.slave_sem
  mlx4_core: Trivial cleanups to driver log messages
  mlx4_core: Trivial readability fix: "0X30" -> "0x30"
  IB/mlx4: Create paravirt contexts for VFs when master IB driver initializes
  mlx4: Modify proxy/tunnel QP mechanism so that guests do no calculations
  mlx4: Paravirtualize Node Guids for slaves
  mlx4: Activate SR-IOV mode for IB
  ...

3 files changed, 68 insertions, 6 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 6e1b0f973a03..6d1acb04cd17 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -54,7 +54,13 @@ enum {
 };
 
 enum {
-        MLX4_MAX_PORTS          = 2
+        MLX4_PORT_CAP_IS_SM     = 1 << 1,
+        MLX4_PORT_CAP_DEV_MGMT_SUP = 1 << 19,
+};
+
+enum {
+        MLX4_MAX_PORTS          = 2,
+        MLX4_MAX_PORT_PKEYS     = 128
 };
 
 /* base qkey for use in sriov tunnel-qp/proxy-qp communication.
@@ -191,6 +197,25 @@ enum {
         MLX4_FATAL_WARNING_SUBTYPE_WARMING = 0,
 };
 
+enum slave_port_state {
+        SLAVE_PORT_DOWN = 0,
+        SLAVE_PENDING_UP,
+        SLAVE_PORT_UP,
+};
+
+enum slave_port_gen_event {
+        SLAVE_PORT_GEN_EVENT_DOWN = 0,
+        SLAVE_PORT_GEN_EVENT_UP,
+        SLAVE_PORT_GEN_EVENT_NONE,
+};
+
+enum slave_port_state_event {
+        MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
+        MLX4_PORT_STATE_DEV_EVENT_PORT_UP,
+        MLX4_PORT_STATE_IB_PORT_STATE_EVENT_GID_VALID,
+        MLX4_PORT_STATE_IB_EVENT_GID_INVALID,
+};
+
 enum {
         MLX4_PERM_LOCAL_READ    = 1 << 10,
         MLX4_PERM_LOCAL_WRITE   = 1 << 11,
@@ -303,6 +328,9 @@ struct mlx4_phys_caps {
         u32                     gid_phys_table_len[MLX4_MAX_PORTS + 1];
         u32                     pkey_phys_table_len[MLX4_MAX_PORTS + 1];
         u32                     num_phys_eqs;
+        u32                     base_sqpn;
+        u32                     base_proxy_sqpn;
+        u32                     base_tunnel_sqpn;
 };
 
 struct mlx4_caps {
@@ -333,9 +361,10 @@ struct mlx4_caps {
         int                     max_rq_desc_sz;
         int                     max_qp_init_rdma;
         int                     max_qp_dest_rdma;
-        int                     sqp_start;
-        u32                     base_sqpn;
-        u32                     base_tunnel_sqpn;
+        u32                     *qp0_proxy;
+        u32                     *qp1_proxy;
+        u32                     *qp0_tunnel;
+        u32                     *qp1_tunnel;
         int                     num_srqs;
         int                     max_srq_wqes;
         int                     max_srq_sge;
@@ -389,6 +418,7 @@ struct mlx4_caps {
         enum mlx4_port_type     possible_type[MLX4_MAX_PORTS + 1];
         u32                     max_counters;
         u8                      port_ib_mtu[MLX4_MAX_PORTS + 1];
+        u16                     sqp_demux;
 };
 
 struct mlx4_buf_list {
@@ -671,6 +701,10 @@ struct mlx4_init_port_param {
         for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)     \
                 if ((type) == (dev)->caps.port_mask[(port)])
 
+#define mlx4_foreach_non_ib_transport_port(port, dev)                     \
+        for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)       \
+                if (((dev)->caps.port_mask[port] != MLX4_PORT_TYPE_IB))
+
 #define mlx4_foreach_ib_transport_port(port, dev)                         \
         for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)       \
                 if (((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_IB) || \
@@ -692,7 +726,18 @@ static inline int mlx4_is_master(struct mlx4_dev *dev)
 
 static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
 {
-        return (qpn < dev->caps.sqp_start + 8);
+        return (qpn < dev->phys_caps.base_sqpn + 8 +
+                16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev));
+}
+
+static inline int mlx4_is_guest_proxy(struct mlx4_dev *dev, int slave, u32 qpn)
+{
+        int guest_proxy_base = dev->phys_caps.base_proxy_sqpn + slave * 8;
+
+        if (qpn >= guest_proxy_base && qpn < guest_proxy_base + 8)
+                return 1;
+
+        return 0;
 }
 
 static inline int mlx4_is_mfunc(struct mlx4_dev *dev)
@@ -927,6 +972,20 @@ int mlx4_flow_attach(struct mlx4_dev *dev,
                      struct mlx4_net_trans_rule *rule, u64 *reg_id);
 int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id);
 
+void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port,
+                          int i, int val);
+
 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey);
 
+int mlx4_is_slave_active(struct mlx4_dev *dev, int slave);
+int mlx4_gen_pkey_eqe(struct mlx4_dev *dev, int slave, u8 port);
+int mlx4_gen_guid_change_eqe(struct mlx4_dev *dev, int slave, u8 port);
+int mlx4_gen_slaves_port_mgt_ev(struct mlx4_dev *dev, u8 port, int attr);
+int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port, u8 port_subtype_change);
+enum slave_port_state mlx4_get_slave_port_state(struct mlx4_dev *dev, int slave, u8 port);
+int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave, u8 port, int event, enum slave_port_gen_event *gen_event);
+
+void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid);
+__be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave);
+
 #endif /* MLX4_DEVICE_H */
diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
index d813704b963b..c257e1b211be 100644
--- a/include/linux/mlx4/driver.h
+++ b/include/linux/mlx4/driver.h
@@ -45,6 +45,8 @@ enum mlx4_dev_event {
         MLX4_DEV_EVENT_PORT_DOWN,
         MLX4_DEV_EVENT_PORT_REINIT,
         MLX4_DEV_EVENT_PORT_MGMT_CHANGE,
+        MLX4_DEV_EVENT_SLAVE_INIT,
+        MLX4_DEV_EVENT_SLAVE_SHUTDOWN,
 };
 
 struct mlx4_interface {
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 338388ba260a..4b4ad6ffef92 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -126,7 +126,8 @@ struct mlx4_rss_context {
 
 struct mlx4_qp_path {
         u8                      fl;
-        u8                      reserved1[2];
+        u8                      reserved1[1];
+        u8                      disable_pkey_check;
         u8                      pkey_index;
         u8                      counter_index;
         u8                      grh_mylmc;