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IB/ipath: Fix bug that can leave sends disabled after freeze recovery 

The semantics of cancel_sends changed, but the code using it was missed.
Don't leave sends and pioavail updates disabled, and add a comment as to
why the force update is needed.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
hifive-unleashed-5.1
Dave Olson 2008-05-07 10:57:48 -07:00 committed by Roland Dreier
parent 6e87d15007
commit b4d390d8d2
1 changed files with 6 additions and 2 deletions
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8
drivers/infiniband/hw/ipath/ipath_intr.c
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@ -933,11 +933,15 @@ void ipath_clear_freeze(struct ipath_devdata *dd)
* therefore would not be sent, and eventually
* might cause the process to run out of bufs
*/
ipath_cancel_sends(dd, 0);
ipath_cancel_sends(dd, 1);
ipath_write_kreg(dd, dd->ipath_kregs->kr_control,
dd->ipath_control);
/* ensure pio avail updates continue */
/*
* ensure pio avail updates continue (because the update
* won't have happened from cancel_sends because we were
* still in freeze
*/
ipath_force_pio_avail_update(dd);
/*