* 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);