IB/mlx4: Add support for memory management extensions and local DMA L_Key

Add support for the following operations to mlx4 when device firmware
supports them:

 - Send with invalidate and local invalidate send queue work requests;
 - Allocate/free fast register MRs;
 - Allocate/free fast register MR page lists;
 - Fast register MR send queue work requests;
 - Local DMA L_Key.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 299f20832ab6..0b191a4842ce 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -637,6 +637,7 @@ repoll:
                 case MLX4_OPCODE_SEND_IMM:
                         wc->wc_flags |= IB_WC_WITH_IMM;
                 case MLX4_OPCODE_SEND:
+                case MLX4_OPCODE_SEND_INVAL:
                         wc->opcode    = IB_WC_SEND;
                         break;
                 case MLX4_OPCODE_RDMA_READ:
@@ -657,6 +658,12 @@ repoll:
                 case MLX4_OPCODE_LSO:
                         wc->opcode    = IB_WC_LSO;
                         break;
+                case MLX4_OPCODE_FMR:
+                        wc->opcode    = IB_WC_FAST_REG_MR;
+                        break;
+                case MLX4_OPCODE_LOCAL_INVAL:
+                        wc->opcode    = IB_WC_LOCAL_INV;
+                        break;
                 }
         } else {
                 wc->byte_len = be32_to_cpu(cqe->byte_cnt);
@@ -667,6 +674,11 @@ repoll:
                         wc->wc_flags    = IB_WC_WITH_IMM;
                         wc->ex.imm_data = cqe->immed_rss_invalid;
                         break;
+                case MLX4_RECV_OPCODE_SEND_INVAL:
+                        wc->opcode      = IB_WC_RECV;
+                        wc->wc_flags    = IB_WC_WITH_INVALIDATE;
+                        wc->ex.invalidate_rkey = be32_to_cpu(cqe->immed_rss_invalid);
+                        break;
                 case MLX4_RECV_OPCODE_SEND:
                         wc->opcode   = IB_WC_RECV;
                         wc->wc_flags = 0;