Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / drivers / net / ethernet / mellanox / mlx4 / qp.c

diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index 7b6cc80..15f870c 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -281,6 +281,9 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
         * We reserve 2 extra QPs per port for the special QPs.  The
         * block of special QPs must be aligned to a multiple of 8, so
         * round up.
+        *
+        * We also reserve the MSB of the 24-bit QP number to indicate
+        * that a QP is an XRC QP.
         */
        dev->caps.sqp_start =
                ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);