[PATCH] IB/mthca: Factor out common queue alloc code

Clean up the allocation of memory for queues by factoring out the
common code into mthca_buf_alloc() and mthca_buf_free().  Now CQs and
QPs share the same queue allocation code, which we'll also use for SRQs.

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

1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 624651edf577..b95249ee46cf 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -51,6 +51,11 @@ struct mthca_buf_list {
         DECLARE_PCI_UNMAP_ADDR(mapping)
 };
 
+union mthca_buf {
+        struct mthca_buf_list direct;
+        struct mthca_buf_list *page_list;
+};
+
 struct mthca_uar {
         unsigned long pfn;
         int           index;
@@ -187,10 +192,7 @@ struct mthca_cq {
         __be32                *arm_db;
         int                    arm_sn;
 
-        union {
-                struct mthca_buf_list direct;
-                struct mthca_buf_list *page_list;
-        }                      queue;
+        union mthca_buf        queue;
         struct mthca_mr        mr;
         wait_queue_head_t      wait;
 };
@@ -228,10 +230,7 @@ struct mthca_qp {
         int                    send_wqe_offset;
 
         u64                   *wrid;
-        union {
-                struct mthca_buf_list direct;
-                struct mthca_buf_list *page_list;
-        }                      queue;
+        union mthca_buf        queue;
 
         wait_queue_head_t      wait;
 };