Commit bd2db0cf authored May 09, 2008 by Brice Goglin Committed by Jeff Garzik May 13, 2008

myri10ge: add barrier in myri10ge_send_cmd



Add a barrier() in the usleep() loop in  myri10ge_send_cmd().
Without the barrier, some mips machine never notices that the
firmware has DMA'ed the response.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Andrew Gallatin <gallatin@myri.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

parent c0bf8801

drivers/net/myri10ge/myri10ge.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -361,8 +361,10 @@ myri10ge_send_cmd(struct myri10ge_priv *mgp, u32 cmd,
		for (sleep_total = 0;
		sleep_total < 1000
		&& response->result == htonl(MYRI10GE_NO_RESPONSE_RESULT);
		sleep_total += 10)
		sleep_total += 10) {
		udelay(10);
		mb();
		}
		} else {
		/* use msleep for most command */
		for (sleep_total = 0;