From 03e678ee968ae54b79c1580c2935895bd863ad95 Mon Sep 17 00:00:00 2001
From: Dhananjay Phadke <dhananjay@netxen.com>
Date: Wed, 14 Jan 2009 20:49:43 -0800
Subject: [PATCH] netxen: hold tx lock while sending firmware commands
Some firmware commands like mac address addition/deletion are sent
on the transmit ring. So need to hold the tx lock before touching
tx producer/consumer indices.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/netxen/netxen_nic_hw.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index e2d2a2fdbe19..821cff68b3f3 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -503,6 +503,8 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
i = 0;
+ netif_tx_lock_bh(adapter->netdev);
+
producer = adapter->cmd_producer;
do {
cmd_desc = &cmd_desc_arr[i];
@@ -527,6 +529,8 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
+ netif_tx_unlock_bh(adapter->netdev);
+
return 0;
}
--
GitLab