These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / infiniband / ulp / ipoib / ipoib_cm.c

diff --git a/kernel/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/kernel/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index cf32a77..3ae9726 100644 (file)
--- a/kernel/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/kernel/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -332,7 +332,7 @@ static void ipoib_cm_init_rx_wr(struct net_device *dev,
        int i;
 
        for (i = 0; i < priv->cm.num_frags; ++i)
-               sge[i].lkey = priv->mr->lkey;
+               sge[i].lkey = priv->pd->local_dma_lkey;
 
        sge[0].length = IPOIB_CM_HEAD_SIZE;
        for (i = 1; i < priv->cm.num_frags; ++i)
@@ -694,24 +694,21 @@ repost:
 static inline int post_send(struct ipoib_dev_priv *priv,
                            struct ipoib_cm_tx *tx,
                            unsigned int wr_id,
-                           u64 addr, int len)
+                           struct ipoib_tx_buf *tx_req)
 {
        struct ib_send_wr *bad_wr;
 
-       priv->tx_sge[0].addr          = addr;
-       priv->tx_sge[0].length        = len;
+       ipoib_build_sge(priv, tx_req);
 
-       priv->tx_wr.num_sge     = 1;
-       priv->tx_wr.wr_id       = wr_id | IPOIB_OP_CM;
+       priv->tx_wr.wr.wr_id    = wr_id | IPOIB_OP_CM;
 
-       return ib_post_send(tx->qp, &priv->tx_wr, &bad_wr);
+       return ib_post_send(tx->qp, &priv->tx_wr.wr, &bad_wr);
 }
 
 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
 {
        struct ipoib_dev_priv *priv = netdev_priv(dev);
-       struct ipoib_cm_tx_buf *tx_req;
-       u64 addr;
+       struct ipoib_tx_buf *tx_req;
        int rc;
 
        if (unlikely(skb->len > tx->mtu)) {
@@ -735,24 +732,21 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
         */
        tx_req = &tx->tx_ring[tx->tx_head & (ipoib_sendq_size - 1)];
        tx_req->skb = skb;
-       addr = ib_dma_map_single(priv->ca, skb->data, skb->len, DMA_TO_DEVICE);
-       if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
+
+       if (unlikely(ipoib_dma_map_tx(priv->ca, tx_req))) {
                ++dev->stats.tx_errors;
                dev_kfree_skb_any(skb);
                return;
        }
 
-       tx_req->mapping = addr;
-
        skb_orphan(skb);
        skb_dst_drop(skb);
 
-       rc = post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1),
-                      addr, skb->len);
+       rc = post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1), tx_req);
        if (unlikely(rc)) {
                ipoib_warn(priv, "post_send failed, error %d\n", rc);
                ++dev->stats.tx_errors;
-               ib_dma_unmap_single(priv->ca, addr, skb->len, DMA_TO_DEVICE);
+               ipoib_dma_unmap_tx(priv, tx_req);
                dev_kfree_skb_any(skb);
        } else {
                dev->trans_start = jiffies;
@@ -777,7 +771,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
        struct ipoib_dev_priv *priv = netdev_priv(dev);
        struct ipoib_cm_tx *tx = wc->qp->qp_context;
        unsigned int wr_id = wc->wr_id & ~IPOIB_OP_CM;
-       struct ipoib_cm_tx_buf *tx_req;
+       struct ipoib_tx_buf *tx_req;
        unsigned long flags;
 
        ipoib_dbg_data(priv, "cm send completion: id %d, status: %d\n",
@@ -791,7 +785,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
 
        tx_req = &tx->tx_ring[wr_id];
 
-       ib_dma_unmap_single(priv->ca, tx_req->mapping, tx_req->skb->len, DMA_TO_DEVICE);
+       ipoib_dma_unmap_tx(priv, tx_req);
 
        /* FIXME: is this right? Shouldn't we only increment on success? */
        ++dev->stats.tx_packets;
@@ -854,7 +848,7 @@ int ipoib_cm_dev_open(struct net_device *dev)
        }
 
        ret = ib_cm_listen(priv->cm.id, cpu_to_be64(IPOIB_CM_IETF_ID | priv->qp->qp_num),
-                          0, NULL);
+                          0);
        if (ret) {
                printk(KERN_WARNING "%s: failed to listen on ID 0x%llx\n", priv->ca->name,
                       IPOIB_CM_IETF_ID | priv->qp->qp_num);
@@ -1036,6 +1030,9 @@ static struct ib_qp *ipoib_cm_create_tx_qp(struct net_device *dev, struct ipoib_
 
        struct ib_qp *tx_qp;
 
+       if (dev->features & NETIF_F_SG)
+               attr.cap.max_send_sge = MAX_SKB_FRAGS + 1;
+
        tx_qp = ib_create_qp(priv->pd, &attr);
        if (PTR_ERR(tx_qp) == -EINVAL) {
                ipoib_warn(priv, "can't use GFP_NOIO for QPs on device %s, using GFP_KERNEL\n",
@@ -1170,7 +1167,7 @@ err_tx:
 static void ipoib_cm_tx_destroy(struct ipoib_cm_tx *p)
 {
        struct ipoib_dev_priv *priv = netdev_priv(p->dev);
-       struct ipoib_cm_tx_buf *tx_req;
+       struct ipoib_tx_buf *tx_req;
        unsigned long begin;
 
        ipoib_dbg(priv, "Destroy active connection 0x%x head 0x%x tail 0x%x\n",
@@ -1197,8 +1194,7 @@ timeout:
 
        while ((int) p->tx_tail - (int) p->tx_head < 0) {
                tx_req = &p->tx_ring[p->tx_tail & (ipoib_sendq_size - 1)];
-               ib_dma_unmap_single(priv->ca, tx_req->mapping, tx_req->skb->len,
-                                   DMA_TO_DEVICE);
+               ipoib_dma_unmap_tx(priv, tx_req);
                dev_kfree_skb_any(tx_req->skb);
                ++p->tx_tail;
                netif_tx_lock_bh(p->dev);
@@ -1455,7 +1451,6 @@ static void ipoib_cm_stale_task(struct work_struct *work)
        spin_unlock_irq(&priv->lock);
 }
 
-
 static ssize_t show_mode(struct device *d, struct device_attribute *attr,
                         char *buf)
 {