• Thadeu Lima de Souza Cascardo's avatar
    cxgb4: allow large buffer size to have page size · 940d9d34
    Thadeu Lima de Souza Cascardo authored
    Since commit 52367a76
    ("cxgb4/cxgb4vf: Code cleanup to enable T4 Configuration File support"),
    we have failures like this during cxgb4 probe:
    
    cxgb4 0000:01:00.4: bad SGE FL page buffer sizes [65536, 65536]
    cxgb4: probe of 0000:01:00.4 failed with error -22
    
    This happens whenever software parameters are used, without a
    configuration file. That happens when the hardware was already
    initialized (after kexec, or after csiostor is loaded).
    
    It happens that these values are acceptable, rendering fl_pg_order equal
    to 0, which is the case of a hard init when the page size is equal or
    larger than 65536.
    
    Accepting fl_large_pg equal to fl_small_pg solves the issue, and
    shouldn't cause any trouble besides a possible performance reduction
    when smaller pages are used. And that can be fixed by a configuration
    file.
    Signed-off-by: default avatarThadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    940d9d34
sge.c 75.5 KB