IB/srp: Prevent mapping failures
If both max_sectors and the queue_depth are high enough it can happen that the MR pool is depleted temporarily. This causes the SRP initiator to report mapping failures. Although the SRP initiator recovers from such mapping failures, prevent that this can happen by allocating more memory regions. Additionally, only enable memory registration if at least two pages can be registered per memory region. Reported-by: NLaurence Oberman <loberman@redhat.com> Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com> Tested-by: NLaurence Oberman <loberman@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: NDoug Ledford <dledford@redhat.com>
Showing
想要评论请 注册 或 登录