[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		256
RX Mini:	0
RX Jumbo:	0
TX:		128

[root@tsm tsm]# ethtool -G ib0 rx 8192
[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		1024
RX Mini:	0
RX Jumbo:	0
TX:		16

[root@tsm tsm]# ethtool -G ib0 tx 8192
[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		512
RX Mini:	0
RX Jumbo:	0
TX:		4096

[root@tsm tsm]# ethtool -G ib0 rx 8192
[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		2048
RX Mini:	0
RX Jumbo:	0
TX:		1024

[root@tsm tsm]# ethtool -G ib0 rx 8192
[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		4096
RX Mini:	0
RX Jumbo:	0
TX:		512

[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		4096
RX Mini:	0
RX Jumbo:	0
TX:		512

[root@tsm tsm]# ethtool -G ib0 tx 8192
[root@tsm tsm]# ethtool -g ib0
Ring parameters for ib0:
Pre-set maximums:
RX:		8192
RX Mini:	0
RX Jumbo:	0
TX:		8192
Current hardware settings:
RX:		2048
RX Mini:	0
RX Jumbo:	0
TX:		4096