Davis, Arlin R wrote:
The DAPL dat_ia_attr->max_lmr_block_size is a u32, yet the dapl code
maps this to the linux ib_device_attr->max_mr_size which is u64.
This causes dapltest to fail in some cases when running over chelsio
which sets max_mr_size to 0x100000000 (4GB). The dapl code truncates
the value to 0. See dapl/openib_cma/dapl_ib_util.c.
I'm not sure what the fix should be, but maybe the dapl code
should set
anything over 32 bits to 0xffffffff?
This attribute changed with DAT 2.0 to match the 32-bit ibv_sge
length field. Since there are no direct max lmr segments mappings
I will need add some checks when setting max_lmr_block_size from
max_mr_size. Thanks.
-arlin
I'll test your fix when its ready. Lemme know.
Steve.
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