pyverbs: Update MW rkey after type 2 bind - #1777
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Please add description of what is the problem that you are fixing into the commit message. Thanks |
set_bind_wr() assigns the incremented rkey to the bind WR but leaves MW.rkey unchanged. After the bind succeeds, applications that publish MW.rkey to the peer send the old rkey, while the NIC has already bound the MW with the new rkey. Remote access using the stale rkey consequently fails with a remote access error. Synchronize MW.rkey with the rkey of successfully posted IBV_WR_BIND_MW requests. When posting a WR list partially fails, only Bind WRs before bad_wr are updated, since those are the requests accepted by ibv_post_send(). Signed-off-by: Zhiwei Zhang <zhangzhiwei@bitintelligence.io>
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Synchronize MW.rkey with the rkey assigned by a successfully posted The type 2 MW test now verifies the synchronized MW rkey and uses it |
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Synchronize MW.rkey with the rkey assigned by a successfully posted
type 2 bind WR.
The type 2 MW test now verifies the synchronized MW rkey and uses it
for subsequent remote access.