1 files changed, 18 insertions, 19 deletions

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 67d63eecc9cb..8416962cc9ac 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -501,45 +501,44 @@ static int nx_p3_nic_add_mac(struct netxen_adapter *adapter,
 
 static int
 netxen_send_cmd_descs(struct netxen_adapter *adapter,
-                struct cmd_desc_type0 *cmd_desc_arr, int nr_elements)
+                struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 {
-        uint32_t i, producer;
+        u32 i, producer, consumer;
         struct netxen_cmd_buffer *pbuf;
         struct cmd_desc_type0 *cmd_desc;
-
-        if (nr_elements > MAX_PENDING_DESC_BLOCK_SIZE || nr_elements == 0) {
-                printk(KERN_WARNING "%s: Too many command descriptors in a "
-                              "request\n", __func__);
-                return -EINVAL;
-        }
+        struct nx_host_tx_ring *tx_ring;
 
         i = 0;
 
+        tx_ring = &adapter->tx_ring;
         netif_tx_lock_bh(adapter->netdev);
 
-        producer = adapter->cmd_producer;
+        producer = tx_ring->producer;
+        consumer = tx_ring->sw_consumer;
+
+        if (nr_desc > find_diff_among(producer, consumer, tx_ring->num_desc)) {
+                netif_tx_unlock_bh(adapter->netdev);
+                return -EBUSY;
+        }
+
         do {
                 cmd_desc = &cmd_desc_arr[i];
 
-                pbuf = &adapter->cmd_buf_arr[producer];
+                pbuf = &tx_ring->cmd_buf_arr[producer];
                 pbuf->skb = NULL;
                 pbuf->frag_count = 0;
 
-                /* adapter->ahw.cmd_desc_head[producer] = *cmd_desc; */
-                memcpy(&adapter->ahw.cmd_desc_head[producer],
+                memcpy(&tx_ring->desc_head[producer],
                         &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 
-                producer = get_next_index(producer,
-                                adapter->num_txd);
+                producer = get_next_index(producer, tx_ring->num_desc);
                 i++;
 
-        } while (i != nr_elements);
-
-        adapter->cmd_producer = producer;
+        } while (i != nr_desc);
 
-        /* write producer index to start the xmit */
+        tx_ring->producer = producer;
 
-        netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
+        netxen_nic_update_cmd_producer(adapter, tx_ring, producer);
 
         netif_tx_unlock_bh(adapter->netdev);