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Commit b4d390d8 authored by Dave Olson's avatar Dave Olson Committed by Roland Dreier
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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: default avatarDave Olson <dave.olson@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 6e87d150

drivers/infiniband/hw/ipath/ipath_intr.c

+6 −2
Original line number Diff line number Diff line
@@ -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);



	/*