myri10ge: fix stop/go mmio ordering
Use mmiowb() to ensure "stop" and "go" commands are sent in order on ia64.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index b1556b2..a5f428b 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -75,7 +75,7 @@
#include "myri10ge_mcp.h"
#include "myri10ge_mcp_gen_header.h"
-#define MYRI10GE_VERSION_STR "1.4.3-1.371"
+#define MYRI10GE_VERSION_STR "1.4.3-1.375"
MODULE_DESCRIPTION("Myricom 10G driver (10GbE)");
MODULE_AUTHOR("Maintainer: help@myri.com");
@@ -1393,6 +1393,7 @@
if (tx->req == tx->done) {
tx->queue_active = 0;
put_be32(htonl(1), tx->send_stop);
+ mmiowb();
}
__netif_tx_unlock(dev_queue);
}
@@ -2864,6 +2865,7 @@
if ((mgp->dev->real_num_tx_queues > 1) && tx->queue_active == 0) {
tx->queue_active = 1;
put_be32(htonl(1), tx->send_go);
+ mmiowb();
}
tx->pkt_start++;
if ((avail - count) < MXGEFW_MAX_SEND_DESC) {