• Zhu Yanjun's avatar
    net: rds: exchange of 8K and 1M pool · 4b9fc714
    Zhu Yanjun authored
    Before the commit 490ea596 ("RDS: IB: move FMR code to its own file"),
    when the dirty_count is greater than 9/10 of max_items of 8K pool,
    1M pool is used, Vice versa. After the commit 490ea596 ("RDS: IB: move
    FMR code to its own file"), the above is removed. When we make the
    following tests.
    
    Server:
      rds-stress -r 1.1.1.16 -D 1M
    
    Client:
      rds-stress -r 1.1.1.14 -s 1.1.1.16 -D 1M
    
    The following will appear.
    "
    connecting to 1.1.1.16:4000
    negotiated options, tasks will start in 2 seconds
    Starting up..header from 1.1.1.166:4001 to id 4001 bogus
    ..
    tsks  tx/s  rx/s tx+rx K/s  mbi K/s  mbo K/s tx us/c  rtt us
    cpu %
       1    0    0     0.00     0.00     0.00    0.00 0.00 -1.00
       1    0    0     0.00     0.00     0.00    0.00 0.00 -1.00
       1    0    0     0.00     0.00     0.00    0.00 0.00 -1.00
       1    0    0     0.00     0.00     0.00    0.00 0.00 -1.00
       1    0    0     0.00     0.00     0.00    0.00 0.00 -1.00
    ...
    "
    So this exchange between 8K and 1M pool is added back.
    
    Fixes: commit 490ea596 ("RDS: IB: move FMR code to its own file")
    Signed-off-by: default avatarZhu Yanjun <yanjun.zhu@oracle.com>
    Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@oracle.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    4b9fc714
ib_rdma.c 16.6 KB