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path: root/drivers/infiniband/hw/bnxt_re/qplib_res.h
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Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_res.h')
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_res.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h
index 6277d802ca4b..4103e602b058 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h
@@ -48,6 +48,11 @@ extern const struct bnxt_qplib_gid bnxt_qplib_gid_zero;
#define HWQ_CMP(idx, hwq) ((idx) & ((hwq)->max_elements - 1))
+#define HWQ_FREE_SLOTS(hwq) (hwq->max_elements - \
+ ((HWQ_CMP(hwq->prod, hwq)\
+ - HWQ_CMP(hwq->cons, hwq))\
+ & (hwq->max_elements - 1)))
+
enum bnxt_qplib_hwq_type {
HWQ_TYPE_CTX,
HWQ_TYPE_QUEUE,