diff options
Diffstat (limited to 'sys/cam/cam.h')
| -rw-r--r-- | sys/cam/cam.h | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/sys/cam/cam.h b/sys/cam/cam.h index 3d85264..2b3b98c 100644 --- a/sys/cam/cam.h +++ b/sys/cam/cam.h @@ -60,16 +60,29 @@ typedef u_int lun_id_t; struct cam_periph; /* - * Priority information for a CAM structure. The generation number is - * incremented everytime a new entry is entered into the queue giving round - * robin per priority level scheduling. + * Priority information for a CAM structure. + */ +typedef enum { + CAM_RL_HOST, + CAM_RL_BUS, + CAM_RL_XPT, + CAM_RL_DEV, + CAM_RL_NORMAL, + CAM_RL_VALUES +} cam_rl; +/* + * The generation number is incremented everytime a new entry is entered into + * the queue giving round robin per priority level scheduling. */ typedef struct { u_int32_t priority; -#define CAM_PRIORITY_BUS 0 -#define CAM_PRIORITY_DEV 0 -#define CAM_PRIORITY_NORMAL 1 +#define CAM_PRIORITY_HOST ((CAM_RL_HOST << 8) + 0x80) +#define CAM_PRIORITY_BUS ((CAM_RL_BUS << 8) + 0x80) +#define CAM_PRIORITY_XPT ((CAM_RL_XPT << 8) + 0x80) +#define CAM_PRIORITY_DEV ((CAM_RL_DEV << 8) + 0x80) +#define CAM_PRIORITY_NORMAL ((CAM_RL_NORMAL << 8) + 0x80) #define CAM_PRIORITY_NONE (u_int32_t)-1 +#define CAM_PRIORITY_TO_RL(x) ((x) >> 8) u_int32_t generation; int index; #define CAM_UNQUEUED_INDEX -1 |
