diff options
Diffstat (limited to 'drivers/net/cxgb3/sge.c')
| -rw-r--r-- | drivers/net/cxgb3/sge.c | 47 |
1 files changed, 36 insertions, 11 deletions
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c index db586870c5f4..796eb305cdc3 100644 --- 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 @@ -557,9 +582,9 @@ static void t3_free_qset(struct adapter *adapter, struct sge_qset *q) for (i = 0; i < SGE_RXQ_PER_SET; ++i) if (q->fl[i].desc) { - spin_lock(&adapter->sge.reg_lock); + spin_lock_irq(&adapter->sge.reg_lock); t3_sge_disable_fl(adapter, q->fl[i].cntxt_id); - spin_unlock(&adapter->sge.reg_lock); + spin_unlock_irq(&adapter->sge.reg_lock); free_rx_bufs(pdev, &q->fl[i]); kfree(q->fl[i].sdesc); dma_free_coherent(&pdev->dev, @@ -570,9 +595,9 @@ static void t3_free_qset(struct adapter *adapter, struct sge_qset *q) for (i = 0; i < SGE_TXQ_PER_SET; ++i) if (q->txq[i].desc) { - spin_lock(&adapter->sge.reg_lock); + spin_lock_irq(&adapter->sge.reg_lock); t3_sge_enable_ecntxt(adapter, q->txq[i].cntxt_id, 0); - spin_unlock(&adapter->sge.reg_lock); + spin_unlock_irq(&adapter->sge.reg_lock); if (q->txq[i].sdesc) { free_tx_desc(adapter, &q->txq[i], q->txq[i].in_use); @@ -586,15 +611,15 @@ static void t3_free_qset(struct adapter *adapter, struct sge_qset *q) } if (q->rspq.desc) { - spin_lock(&adapter->sge.reg_lock); + spin_lock_irq(&adapter->sge.reg_lock); t3_sge_disable_rspcntxt(adapter, q->rspq.cntxt_id); - spin_unlock(&adapter->sge.reg_lock); + spin_unlock_irq(&adapter->sge.reg_lock); dma_free_coherent(&pdev->dev, q->rspq.size * sizeof(struct rsp_desc), 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(); @@ -2667,7 +2692,7 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports, (16 * 1024) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) : MAX_FRAME_SIZE + 2 + sizeof(struct cpl_rx_pkt); - spin_lock(&adapter->sge.reg_lock); + spin_lock_irq(&adapter->sge.reg_lock); /* FL threshold comparison uses < */ ret = t3_sge_init_rspcntxt(adapter, q->rspq.cntxt_id, irq_vec_idx, @@ -2711,7 +2736,7 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports, goto err_unlock; } - spin_unlock(&adapter->sge.reg_lock); + spin_unlock_irq(&adapter->sge.reg_lock); q->adap = adapter; q->netdev = dev; @@ -2728,7 +2753,7 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports, return 0; err_unlock: - spin_unlock(&adapter->sge.reg_lock); + spin_unlock_irq(&adapter->sge.reg_lock); err: t3_free_qset(adapter, q); return ret; |