redonkable/freescale-linux-fslc
redonkable/freescale-linux-fslc
1
0
Fork 0
Code Releases Activity

IB/rdmavt: Fix send scheduling

Browse source 
call_send is used to determine whether to send immediately or schedule
a send for later. The current logic in rdmavt is inverted and has a
negative impact on the latency of the hfi1 and qib drivers. Fix this
regression by correctly calling send immediately when call_send is set.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jubin John 2016-04-12 10:47:00 -07:00 committed by Doug Ledford
parent 849e3e9398
commit e6d2e0176e
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/infiniband/sw/rdmavt/qp.c
View file

@ -1637,9 +1637,9 @@ bail:
spin_unlock_irqrestore(&qp->s_hlock, flags);
if (nreq) {
if (call_send)
rdi->driver_f.schedule_send_no_lock(qp);
else
rdi->driver_f.do_send(qp);
else
rdi->driver_f.schedule_send_no_lock(qp);
}
return err;
}