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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/core: Remove unused struct ib_device.flags member
  IB/core: Add IP checksum offload support
  IPoIB: Add send gather support
  IPoIB: Add high DMA feature flag
  IB/mlx4: Use multiple WQ blocks to post smaller send WQEs
  mlx4_core: Clean up struct mlx4_buf
  mlx4_core: For 64-bit systems, vmap() kernel queue buffers
  IB/mlx4: Consolidate code to get an entry from a struct mlx4_buf

3 files changed, 31 insertions, 8 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 222815d91c40..6cdf813cd478 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -133,6 +133,11 @@ enum {
         MLX4_STAT_RATE_OFFSET   = 5
 };
 
+static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
+{
+        return (major << 32) | (minor << 16) | subminor;
+}
+
 struct mlx4_caps {
         u64                     fw_ver;
         int                     num_ports;
@@ -189,10 +194,8 @@ struct mlx4_buf_list {
 };
 
 struct mlx4_buf {
-        union {
-                struct mlx4_buf_list    direct;
-                struct mlx4_buf_list   *page_list;
-        } u;
+        struct mlx4_buf_list    direct;
+        struct mlx4_buf_list   *page_list;
         int                     nbufs;
         int                     npages;
         int                     page_shift;
@@ -308,6 +311,14 @@ struct mlx4_init_port_param {
 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
                    struct mlx4_buf *buf);
 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
+static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
+{
+        if (BITS_PER_LONG == 64 || buf->nbufs == 1)
+                return buf->direct.buf + offset;
+        else
+                return buf->page_list[offset >> PAGE_SHIFT].buf +
+                        (offset & (PAGE_SIZE - 1));
+}
 
 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 3968b943259a..09a2230923f2 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -154,7 +154,11 @@ struct mlx4_qp_context {
         u32                     reserved5[10];
 };
 
+/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
+#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)
+
 enum {
+        MLX4_WQE_CTRL_NEC       = 1 << 29,
         MLX4_WQE_CTRL_FENCE     = 1 << 6,
         MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
         MLX4_WQE_CTRL_SOLICITED = 1 << 1,
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index cfbd38fe2998..701e7b40560a 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -95,7 +95,15 @@ enum ib_device_cap_flags {
         IB_DEVICE_N_NOTIFY_CQ           = (1<<14),
         IB_DEVICE_ZERO_STAG             = (1<<15),
         IB_DEVICE_SEND_W_INV            = (1<<16),
-        IB_DEVICE_MEM_WINDOW            = (1<<17)
+        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
+         * messages and can verify the validity of checksum for
+         * 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),
 };
 
 enum ib_atomic_cap {
@@ -431,6 +439,7 @@ struct ib_wc {
         u8                      sl;
         u8                      dlid_path_bits;
         u8                      port_num;       /* valid only for DR SMPs on switches */
+        int                     csum_ok;
 };
 
 enum ib_cq_notify_flags {
@@ -615,7 +624,8 @@ enum ib_send_flags {
         IB_SEND_FENCE           = 1,
         IB_SEND_SIGNALED        = (1<<1),
         IB_SEND_SOLICITED       = (1<<2),
-        IB_SEND_INLINE          = (1<<3)
+        IB_SEND_INLINE          = (1<<3),
+        IB_SEND_IP_CSUM         = (1<<4)
 };
 
 struct ib_sge {
@@ -890,8 +900,6 @@ struct ib_device {
         int                          *pkey_tbl_len;
         int                          *gid_tbl_len;
 
-        u32                           flags;
-
         int                           num_comp_vectors;
 
         struct iw_cm_verbs           *iwcm;