cxgb3 - fix EEH

[safe/jmp/linux-2.6] / drivers / net / cxgb3 / sge.c

diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 98a6bbd..796eb30 100644 (file)
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -539,6 +539,31 @@ static void *alloc_ring(struct pci_dev *pdev, size_t nelem, size_t elem_size,
 }
 
 /**
+ *     t3_reset_qset - reset a sge qset
+ *     @q: the queue set
+ *
+ *     Reset the qset structure.
+ *     the NAPI structure is preserved in the event of
+ *     the qset's reincarnation, for example during EEH recovery.
+ */
+static void t3_reset_qset(struct sge_qset *q)
+{
+       if (q->adap &&
+           !(q->adap->flags & NAPI_INIT)) {
+               memset(q, 0, sizeof(*q));
+               return;
+       }
+
+       q->adap = NULL;
+       memset(&q->rspq, 0, sizeof(q->rspq));
+       memset(q->fl, 0, sizeof(struct sge_fl) * SGE_RXQ_PER_SET);
+       memset(q->txq, 0, sizeof(struct sge_txq) * SGE_TXQ_PER_SET);
+       q->txq_stopped = 0;
+       memset(&q->tx_reclaim_timer, 0, sizeof(q->tx_reclaim_timer));
+}
+
+
+/**
  *     free_qset - free the resources of an SGE queue set
  *     @adapter: the adapter owning the queue set
  *     @q: the queue set
@@ -594,7 +619,7 @@ static void t3_free_qset(struct adapter *adapter, struct sge_qset *q)
                                  q->rspq.desc, q->rspq.phys_addr);
        }
 
-       memset(q, 0, sizeof(*q));
+       t3_reset_qset(q);
 }
 
 /**
@@ -1365,7 +1390,7 @@ static void restart_ctrlq(unsigned long data)
  */
 int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb)
 {
-       int ret; 
+       int ret;
        local_bh_disable();
        ret = ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
        local_bh_enable();