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myri10ge: fix stop/go mmio ordering

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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>
This commit is contained in:
Brice Goglin 2008-10-30 08:59:33 +01:00 committed by Jeff Garzik
parent ce39a800ea
commit 6824a105d4
1 changed files with 3 additions and 1 deletions
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4
drivers/net/myri10ge/myri10ge.c
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@ -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 @@ myri10ge_tx_done(struct myri10ge_slice_state *ss, int mcp_index)
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 @@ static int myri10ge_xmit(struct sk_buff *skb, struct net_device *dev)
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) {