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-rw-r--r--include/rdma/rdma_vt.h9
-rw-r--r--include/rdma/rdmavt_qp.h5
2 files changed, 10 insertions, 4 deletions
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 3f12da9384a1..16274e2133cd 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -426,6 +426,15 @@ static inline unsigned rvt_get_npkeys(struct rvt_dev_info *rdi)
 }
 
 /*
+ * Return the max atomic suitable for determining
+ * the size of the ack ring buffer in a QP.
+ */
+static inline unsigned int rvt_max_atomic(struct rvt_dev_info *rdi)
+{
+	return rdi->dparms.max_rdma_atomic + 1;
+}
+
+/*
  * Return the indexed PKEY from the port PKEY table.
  */
 static inline u16 rvt_get_pkey(struct rvt_dev_info *rdi,
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 0e1ff2abfe92..6d23b879416a 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -211,8 +211,6 @@ struct rvt_mmap_info {
 	unsigned size;
 };
 
-#define RVT_MAX_RDMA_ATOMIC	16
-
 /*
  * This structure holds the information that the send tasklet needs
  * to send a RDMA read response or atomic operation.
@@ -282,8 +280,7 @@ struct rvt_qp {
 	atomic_t refcount ____cacheline_aligned_in_smp;
 	wait_queue_head_t wait;
 
-	struct rvt_ack_entry s_ack_queue[RVT_MAX_RDMA_ATOMIC + 1]
-		____cacheline_aligned_in_smp;
+	struct rvt_ack_entry *s_ack_queue;
 	struct rvt_sge_state s_rdma_read_sge;
 
 	spinlock_t r_lock ____cacheline_aligned_in_smp;      /* used for APM */