unsigned long flags;
- if ((int) priv->tx_tail - (int) ah->last_send >= 0) {
- ipoib_dbg(priv, "Freeing ah %p\n", ah->ah);
- ib_destroy_ah(ah->ah);
- kfree(ah);
- } else {
- spin_lock_irqsave(&priv->lock, flags);
- list_add_tail(&ah->list, &priv->dead_ahs);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
+ spin_lock_irqsave(&priv->lock, flags);
+ list_add_tail(&ah->list, &priv->dead_ahs);
+ spin_unlock_irqrestore(&priv->lock, flags);
}
static int ipoib_ib_post_receive(struct net_device *dev, int id)
ret = ib_post_recv(priv->qp, ¶m, &bad_wr);
if (unlikely(ret)) {
ipoib_warn(priv, "receive failed for buf %d (%d)\n", id, ret);
- dma_unmap_single(priv->ca->dma_device,
- priv->rx_ring[id].mapping,
- IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
+ ib_dma_unmap_single(priv->ca, priv->rx_ring[id].mapping,
+ IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(priv->rx_ring[id].skb);
priv->rx_ring[id].skb = NULL;
}
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct sk_buff *skb;
- dma_addr_t addr;
+ u64 addr;
skb = dev_alloc_skb(IPOIB_BUF_SIZE + 4);
if (!skb)
*/
skb_reserve(skb, 4);
- addr = dma_map_single(priv->ca->dma_device,
- skb->data, IPOIB_BUF_SIZE,
- DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(addr))) {
+ addr = ib_dma_map_single(priv->ca, skb->data, IPOIB_BUF_SIZE,
+ DMA_FROM_DEVICE);
+ if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
dev_kfree_skb_any(skb);
return -EIO;
}
struct ipoib_dev_priv *priv = netdev_priv(dev);
int i;
- for (i = 0; i < IPOIB_RX_RING_SIZE; ++i) {
+ for (i = 0; i < ipoib_recvq_size; ++i) {
if (ipoib_alloc_rx_skb(dev, i)) {
ipoib_warn(priv, "failed to allocate receive buffer %d\n", i);
return -ENOMEM;
return 0;
}
-static void ipoib_ib_handle_wc(struct net_device *dev,
- struct ib_wc *wc)
+static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
- unsigned int wr_id = wc->wr_id;
+ unsigned int wr_id = wc->wr_id & ~IPOIB_OP_RECV;
+ struct sk_buff *skb;
+ u64 addr;
- ipoib_dbg_data(priv, "called: id %d, op %d, status: %d\n",
+ ipoib_dbg_data(priv, "recv completion: id %d, op %d, status: %d\n",
wr_id, wc->opcode, wc->status);
- if (wr_id & IPOIB_OP_RECV) {
- wr_id &= ~IPOIB_OP_RECV;
-
- if (wr_id < IPOIB_RX_RING_SIZE) {
- struct sk_buff *skb = priv->rx_ring[wr_id].skb;
- dma_addr_t addr = priv->rx_ring[wr_id].mapping;
-
- if (unlikely(wc->status != IB_WC_SUCCESS)) {
- if (wc->status != IB_WC_WR_FLUSH_ERR)
- ipoib_warn(priv, "failed recv event "
- "(status=%d, wrid=%d vend_err %x)\n",
- wc->status, wr_id, wc->vendor_err);
- dma_unmap_single(priv->ca->dma_device, addr,
- IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
- dev_kfree_skb_any(skb);
- priv->rx_ring[wr_id].skb = NULL;
- return;
- }
+ if (unlikely(wr_id >= ipoib_recvq_size)) {
+ ipoib_warn(priv, "recv completion event with wrid %d (> %d)\n",
+ wr_id, ipoib_recvq_size);
+ return;
+ }
- /*
- * If we can't allocate a new RX buffer, dump
- * this packet and reuse the old buffer.
- */
- if (unlikely(ipoib_alloc_rx_skb(dev, wr_id))) {
- ++priv->stats.rx_dropped;
- goto repost;
- }
+ skb = priv->rx_ring[wr_id].skb;
+ addr = priv->rx_ring[wr_id].mapping;
- ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n",
- wc->byte_len, wc->slid);
+ if (unlikely(wc->status != IB_WC_SUCCESS)) {
+ if (wc->status != IB_WC_WR_FLUSH_ERR)
+ ipoib_warn(priv, "failed recv event "
+ "(status=%d, wrid=%d vend_err %x)\n",
+ wc->status, wr_id, wc->vendor_err);
+ ib_dma_unmap_single(priv->ca, addr,
+ IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
+ dev_kfree_skb_any(skb);
+ priv->rx_ring[wr_id].skb = NULL;
+ return;
+ }
- dma_unmap_single(priv->ca->dma_device, addr,
- IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
+ /*
+ * If we can't allocate a new RX buffer, dump
+ * this packet and reuse the old buffer.
+ */
+ if (unlikely(ipoib_alloc_rx_skb(dev, wr_id))) {
+ ++priv->stats.rx_dropped;
+ goto repost;
+ }
- skb_put(skb, wc->byte_len);
- skb_pull(skb, IB_GRH_BYTES);
+ ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n",
+ wc->byte_len, wc->slid);
- if (wc->slid != priv->local_lid ||
- wc->src_qp != priv->qp->qp_num) {
- skb->protocol = ((struct ipoib_header *) skb->data)->proto;
- skb->mac.raw = skb->data;
- skb_pull(skb, IPOIB_ENCAP_LEN);
+ ib_dma_unmap_single(priv->ca, addr, IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
- dev->last_rx = jiffies;
- ++priv->stats.rx_packets;
- priv->stats.rx_bytes += skb->len;
+ skb_put(skb, wc->byte_len);
+ skb_pull(skb, IB_GRH_BYTES);
- skb->dev = dev;
- /* XXX get correct PACKET_ type here */
- skb->pkt_type = PACKET_HOST;
- netif_rx_ni(skb);
- } else {
- ipoib_dbg_data(priv, "dropping loopback packet\n");
- dev_kfree_skb_any(skb);
- }
+ if (wc->slid != priv->local_lid ||
+ wc->src_qp != priv->qp->qp_num) {
+ skb->protocol = ((struct ipoib_header *) skb->data)->proto;
+ skb->mac.raw = skb->data;
+ skb_pull(skb, IPOIB_ENCAP_LEN);
- repost:
- if (unlikely(ipoib_ib_post_receive(dev, wr_id)))
- ipoib_warn(priv, "ipoib_ib_post_receive failed "
- "for buf %d\n", wr_id);
- } else
- ipoib_warn(priv, "completion event with wrid %d\n",
- wr_id);
+ dev->last_rx = jiffies;
+ ++priv->stats.rx_packets;
+ priv->stats.rx_bytes += skb->len;
+ skb->dev = dev;
+ /* XXX get correct PACKET_ type here */
+ skb->pkt_type = PACKET_HOST;
+ netif_rx_ni(skb);
} else {
- struct ipoib_tx_buf *tx_req;
- unsigned long flags;
+ ipoib_dbg_data(priv, "dropping loopback packet\n");
+ dev_kfree_skb_any(skb);
+ }
- if (wr_id >= IPOIB_TX_RING_SIZE) {
- ipoib_warn(priv, "completion event with wrid %d (> %d)\n",
- wr_id, IPOIB_TX_RING_SIZE);
- return;
- }
+repost:
+ if (unlikely(ipoib_ib_post_receive(dev, wr_id)))
+ ipoib_warn(priv, "ipoib_ib_post_receive failed "
+ "for buf %d\n", wr_id);
+}
- ipoib_dbg_data(priv, "send complete, wrid %d\n", wr_id);
+static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
+{
+ struct ipoib_dev_priv *priv = netdev_priv(dev);
+ unsigned int wr_id = wc->wr_id;
+ struct ipoib_tx_buf *tx_req;
+ unsigned long flags;
- tx_req = &priv->tx_ring[wr_id];
+ ipoib_dbg_data(priv, "send completion: id %d, op %d, status: %d\n",
+ wr_id, wc->opcode, wc->status);
- dma_unmap_single(priv->ca->dma_device,
- pci_unmap_addr(tx_req, mapping),
- tx_req->skb->len,
- DMA_TO_DEVICE);
+ if (unlikely(wr_id >= ipoib_sendq_size)) {
+ ipoib_warn(priv, "send completion event with wrid %d (> %d)\n",
+ wr_id, ipoib_sendq_size);
+ return;
+ }
- ++priv->stats.tx_packets;
- priv->stats.tx_bytes += tx_req->skb->len;
+ tx_req = &priv->tx_ring[wr_id];
- dev_kfree_skb_any(tx_req->skb);
+ ib_dma_unmap_single(priv->ca, tx_req->mapping,
+ tx_req->skb->len, DMA_TO_DEVICE);
- spin_lock_irqsave(&priv->tx_lock, flags);
- ++priv->tx_tail;
- if (netif_queue_stopped(dev) &&
- priv->tx_head - priv->tx_tail <= IPOIB_TX_RING_SIZE / 2)
- netif_wake_queue(dev);
- spin_unlock_irqrestore(&priv->tx_lock, flags);
+ ++priv->stats.tx_packets;
+ priv->stats.tx_bytes += tx_req->skb->len;
- if (wc->status != IB_WC_SUCCESS &&
- wc->status != IB_WC_WR_FLUSH_ERR)
- ipoib_warn(priv, "failed send event "
- "(status=%d, wrid=%d vend_err %x)\n",
- wc->status, wr_id, wc->vendor_err);
- }
+ dev_kfree_skb_any(tx_req->skb);
+
+ spin_lock_irqsave(&priv->tx_lock, flags);
+ ++priv->tx_tail;
+ if (netif_queue_stopped(dev) &&
+ test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags) &&
+ priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1)
+ netif_wake_queue(dev);
+ spin_unlock_irqrestore(&priv->tx_lock, flags);
+
+ if (wc->status != IB_WC_SUCCESS &&
+ wc->status != IB_WC_WR_FLUSH_ERR)
+ ipoib_warn(priv, "failed send event "
+ "(status=%d, wrid=%d vend_err %x)\n",
+ wc->status, wr_id, wc->vendor_err);
+}
+
+static void ipoib_ib_handle_wc(struct net_device *dev, struct ib_wc *wc)
+{
+ if (wc->wr_id & IPOIB_OP_RECV)
+ ipoib_ib_handle_rx_wc(dev, wc);
+ else
+ ipoib_ib_handle_tx_wc(dev, wc);
}
void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr)
static inline int post_send(struct ipoib_dev_priv *priv,
unsigned int wr_id,
struct ib_ah *address, u32 qpn,
- dma_addr_t addr, int len)
+ u64 addr, int len)
{
struct ib_send_wr *bad_wr;
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ipoib_tx_buf *tx_req;
- dma_addr_t addr;
+ u64 addr;
- if (skb->len > dev->mtu + INFINIBAND_ALEN) {
+ if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) {
ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n",
skb->len, dev->mtu + INFINIBAND_ALEN);
++priv->stats.tx_dropped;
* means we have to make sure everything is properly recorded and
* our state is consistent before we call post_send().
*/
- tx_req = &priv->tx_ring[priv->tx_head & (IPOIB_TX_RING_SIZE - 1)];
+ tx_req = &priv->tx_ring[priv->tx_head & (ipoib_sendq_size - 1)];
tx_req->skb = skb;
- addr = dma_map_single(priv->ca->dma_device, skb->data, skb->len,
- DMA_TO_DEVICE);
- pci_unmap_addr_set(tx_req, mapping, addr);
+ addr = ib_dma_map_single(priv->ca, skb->data, skb->len,
+ DMA_TO_DEVICE);
+ if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
+ ++priv->stats.tx_errors;
+ dev_kfree_skb_any(skb);
+ return;
+ }
+ tx_req->mapping = addr;
- if (unlikely(post_send(priv, priv->tx_head & (IPOIB_TX_RING_SIZE - 1),
+ if (unlikely(post_send(priv, priv->tx_head & (ipoib_sendq_size - 1),
address->ah, qpn, addr, skb->len))) {
ipoib_warn(priv, "post_send failed\n");
++priv->stats.tx_errors;
- dma_unmap_single(priv->ca->dma_device, addr, skb->len,
- DMA_TO_DEVICE);
+ ib_dma_unmap_single(priv->ca, addr, skb->len, DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
} else {
dev->trans_start = jiffies;
address->last_send = priv->tx_head;
++priv->tx_head;
- if (priv->tx_head - priv->tx_tail == IPOIB_TX_RING_SIZE) {
+ if (priv->tx_head - priv->tx_tail == ipoib_sendq_size) {
ipoib_dbg(priv, "TX ring full, stopping kernel net queue\n");
netif_stop_queue(dev);
}
struct ipoib_ah *ah, *tah;
LIST_HEAD(remove_list);
- spin_lock_irq(&priv->lock);
+ spin_lock_irq(&priv->tx_lock);
+ spin_lock(&priv->lock);
list_for_each_entry_safe(ah, tah, &priv->dead_ahs, list)
if ((int) priv->tx_tail - (int) ah->last_send >= 0) {
list_del(&ah->list);
- list_add_tail(&ah->list, &remove_list);
+ ib_destroy_ah(ah->ah);
+ kfree(ah);
}
- spin_unlock_irq(&priv->lock);
-
- list_for_each_entry_safe(ah, tah, &remove_list, list) {
- ipoib_dbg(priv, "Reaping ah %p\n", ah->ah);
- ib_destroy_ah(ah->ah);
- kfree(ah);
- }
+ spin_unlock(&priv->lock);
+ spin_unlock_irq(&priv->tx_lock);
}
-void ipoib_reap_ah(void *dev_ptr)
+void ipoib_reap_ah(struct work_struct *work)
{
- struct net_device *dev = dev_ptr;
- struct ipoib_dev_priv *priv = netdev_priv(dev);
+ struct ipoib_dev_priv *priv =
+ container_of(work, struct ipoib_dev_priv, ah_reap_task.work);
+ struct net_device *dev = priv->dev;
__ipoib_reap_ah(dev);
ret = ipoib_ib_post_receives(dev);
if (ret) {
ipoib_warn(priv, "ipoib_ib_post_receives returned %d\n", ret);
+ ipoib_ib_dev_stop(dev);
return -1;
}
clear_bit(IPOIB_STOP_REAPER, &priv->flags);
queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task, HZ);
+ set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
+
return 0;
}
+static void ipoib_pkey_dev_check_presence(struct net_device *dev)
+{
+ struct ipoib_dev_priv *priv = netdev_priv(dev);
+ u16 pkey_index = 0;
+
+ if (ib_find_cached_pkey(priv->ca, priv->port, priv->pkey, &pkey_index))
+ clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
+ else
+ set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
+}
+
int ipoib_ib_dev_up(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
+ ipoib_pkey_dev_check_presence(dev);
+
+ if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) {
+ ipoib_dbg(priv, "PKEY is not assigned.\n");
+ return 0;
+ }
+
set_bit(IPOIB_FLAG_OPER_UP, &priv->flags);
return ipoib_mcast_start_thread(dev);
}
-int ipoib_ib_dev_down(struct net_device *dev)
+int ipoib_ib_dev_down(struct net_device *dev, int flush)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
set_bit(IPOIB_PKEY_STOP, &priv->flags);
cancel_delayed_work(&priv->pkey_task);
mutex_unlock(&pkey_mutex);
- flush_workqueue(ipoib_workqueue);
+ if (flush)
+ flush_workqueue(ipoib_workqueue);
}
- ipoib_mcast_stop_thread(dev, 1);
+ ipoib_mcast_stop_thread(dev, flush);
ipoib_mcast_dev_flush(dev);
ipoib_flush_paths(dev);
int pending = 0;
int i;
- for (i = 0; i < IPOIB_RX_RING_SIZE; ++i)
+ for (i = 0; i < ipoib_recvq_size; ++i)
if (priv->rx_ring[i].skb)
++pending;
struct ipoib_tx_buf *tx_req;
int i;
+ clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
+
/*
* Move our QP to the error state and then reinitialize in
* when all work requests have completed or have been flushed.
*/
while ((int) priv->tx_tail - (int) priv->tx_head < 0) {
tx_req = &priv->tx_ring[priv->tx_tail &
- (IPOIB_TX_RING_SIZE - 1)];
- dma_unmap_single(priv->ca->dma_device,
- pci_unmap_addr(tx_req, mapping),
- tx_req->skb->len,
- DMA_TO_DEVICE);
+ (ipoib_sendq_size - 1)];
+ ib_dma_unmap_single(priv->ca,
+ tx_req->mapping,
+ tx_req->skb->len,
+ DMA_TO_DEVICE);
dev_kfree_skb_any(tx_req->skb);
++priv->tx_tail;
}
- for (i = 0; i < IPOIB_RX_RING_SIZE; ++i)
- if (priv->rx_ring[i].skb) {
- dma_unmap_single(priv->ca->dma_device,
- pci_unmap_addr(&priv->rx_ring[i],
- mapping),
- IPOIB_BUF_SIZE,
- DMA_FROM_DEVICE);
- dev_kfree_skb_any(priv->rx_ring[i].skb);
- priv->rx_ring[i].skb = NULL;
- }
+ for (i = 0; i < ipoib_recvq_size; ++i) {
+ struct ipoib_rx_buf *rx_req;
+
+ rx_req = &priv->rx_ring[i];
+ if (!rx_req->skb)
+ continue;
+ ib_dma_unmap_single(priv->ca,
+ rx_req->mapping,
+ IPOIB_BUF_SIZE,
+ DMA_FROM_DEVICE);
+ dev_kfree_skb_any(rx_req->skb);
+ rx_req->skb = NULL;
+ }
goto timeout;
}
return 0;
}
-void ipoib_ib_dev_flush(void *_dev)
+void ipoib_ib_dev_flush(struct work_struct *work)
{
- struct net_device *dev = (struct net_device *)_dev;
- struct ipoib_dev_priv *priv = netdev_priv(dev), *cpriv;
+ struct ipoib_dev_priv *cpriv, *priv =
+ container_of(work, struct ipoib_dev_priv, flush_task);
+ struct net_device *dev = priv->dev;
- if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
+ if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags) ) {
+ ipoib_dbg(priv, "Not flushing - IPOIB_FLAG_INITIALIZED not set.\n");
return;
+ }
+
+ if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) {
+ ipoib_dbg(priv, "Not flushing - IPOIB_FLAG_ADMIN_UP not set.\n");
+ return;
+ }
ipoib_dbg(priv, "flushing\n");
- ipoib_ib_dev_down(dev);
+ ipoib_ib_dev_down(dev, 0);
/*
* The device could have been brought down between the start and when
* we get here, don't bring it back up if it's not configured up
*/
- if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
+ if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) {
ipoib_ib_dev_up(dev);
+ ipoib_mcast_restart_task(&priv->restart_task);
+ }
mutex_lock(&priv->vlan_mutex);
/* Flush any child interfaces too */
list_for_each_entry(cpriv, &priv->child_intfs, list)
- ipoib_ib_dev_flush(&cpriv->dev);
+ ipoib_ib_dev_flush(&cpriv->flush_task);
mutex_unlock(&priv->vlan_mutex);
}
* change async notification is available.
*/
-static void ipoib_pkey_dev_check_presence(struct net_device *dev)
-{
- struct ipoib_dev_priv *priv = netdev_priv(dev);
- u16 pkey_index = 0;
-
- if (ib_find_cached_pkey(priv->ca, priv->port, priv->pkey, &pkey_index))
- clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
- else
- set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
-}
-
-void ipoib_pkey_poll(void *dev_ptr)
+void ipoib_pkey_poll(struct work_struct *work)
{
- struct net_device *dev = dev_ptr;
- struct ipoib_dev_priv *priv = netdev_priv(dev);
+ struct ipoib_dev_priv *priv =
+ container_of(work, struct ipoib_dev_priv, pkey_task.work);
+ struct net_device *dev = priv->dev;
ipoib_pkey_dev_check_presence(dev);
git://git.onelab.eu / linux-2.6.git / blobdiff