Regression: SIW_MAX_INLINE decreased from 72 to 64

[patrickmacarthur]

openmpi fails to run against softiwarp with default parameters, as commit f1a754b decreased the max inline limit from 72 to 64, because 8 bytes were removed from struct siw_sge. openmpi has the inline limit for softiwarp set to 72 in its configuration file, so unless the user specifically overrides this, openmpi will always fail trying to create a QP since the max_inline_data it passes is greater than the limit.

The easiest solution that I can see would be to increase SIW_MAX_SGE from 5 to 6, which would allow for 80 bytes of inline data.

[BernardMetzler]

...interesting side effect! right - will do so, even if it increases the stack size for the siw_tx_hdt() function. maybe i should consider better changing the array allocations in that function to dynamic kmalloc or keep the memory at the QP. Thanks! Bernard. From: Patrick MacArthur <[email protected]> To: zrlio/softiwarp <[email protected]> Cc: Subscribed <[email protected]> Date: 05/04/2017 05:33 PM Subject: [zrlio/softiwarp] Regression: SIW_MAX_INLINE decreased from 72 to 64 (#13) openmpi fails to run against softiwarp with default parameters, as commit f1a754b decreased the max inline limit from 72 to 64, because 8 bytes were removed from struct siw_sge. openmpi has the inline limit for softiwarp set to 72 in its configuration file, so unless the user specifically overrides this, openmpi will always fail trying to create a QP since the max_inline_data it passes is greater than the limit. The easiest solution that I can see would be to increase SIW_MAX_SGE from 5 to 6, which would allow for 80 bytes of inline data. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.