mlx5 interrupts

[Slawa Olhovchenkov]

Can anybody explain what purpose of unnamed interrupts of Mellanox
ConnectX-5 cards?

I am see 19 interrupts per card. I am mean last 16 is RX queue.
What about first 3?
Also I am see very high rate for irq287/irq306 -- is this good?

# vmstat -i | grep -e ^int -e mlx
interrupt                          total       rate
irq286: mlx5_core0                     1          0
irq287: mlx5_core0               5135992         20
irq288: mlx5_core0                     1          0
irq289: mlx5_core0                 76408          0
irq290: mlx5_core0                 43054          0
irq291: mlx5_core0                 93826          0
irq292: mlx5_core0                 39457          0
irq293: mlx5_core0                 36141          0
irq294: mlx5_core0                 65526          0
irq295: mlx5_core0                 53399          0
irq296: mlx5_core0                120885          0
irq297: mlx5_core0                140690          1
irq298: mlx5_core0                193578          1
irq299: mlx5_core0                178332          1
irq300: mlx5_core0                 75334          0
irq301: mlx5_core0                207118          1
irq302: mlx5_core0                108803          0
irq303: mlx5_core0                 24356          0
irq304: mlx5_core0                 26713          0
irq305: mlx5_core1                     1          0
irq306: mlx5_core1               5136296         20
irq307: mlx5_core1                     1          0
irq308: mlx5_core1               3634544         14
irq309: mlx5_core1                 22860          0
irq310: mlx5_core1                564441          2
irq311: mlx5_core1                 30503          0
irq312: mlx5_core1                115549          0
irq313: mlx5_core1                 49815          0
irq314: mlx5_core1                 10272          0
irq315: mlx5_core1                 85875          0
irq316: mlx5_core1                134251          1
irq317: mlx5_core1                 25151          0
irq318: mlx5_core1                 73376          0
irq319: mlx5_core1                  5879          0
irq320: mlx5_core1                 39515          0
irq321: mlx5_core1                  5390          0
irq322: mlx5_core1                 22726          0
irq323: mlx5_core1                 60408          0