From: Ralph Campbell Date: Tue, 12 Dec 2006 22:30:48 +0000 (-0800) Subject: IPoIB: Use the new verbs DMA mapping functions X-Git-Tag: v2.6.20-rc1~143^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=37ccf9df974f55e99bf21278133b065cbbcf3f79;p=profile%2Fivi%2Fkernel-x86-ivi.git IPoIB: Use the new verbs DMA mapping functions Convert IPoIB to use the new DMA mapping functions for kernel verbs consumers. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 9954799..07deee8 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -105,12 +105,12 @@ struct ipoib_mcast; struct ipoib_rx_buf { struct sk_buff *skb; - dma_addr_t mapping; + u64 mapping; }; struct ipoib_tx_buf { struct sk_buff *skb; - DECLARE_PCI_UNMAP_ADDR(mapping) + u64 mapping; }; /* diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index f10fba5d..59d9594 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -109,9 +109,8 @@ 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; } @@ -123,7 +122,7 @@ static int ipoib_alloc_rx_skb(struct net_device *dev, int id) { 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) @@ -136,10 +135,9 @@ static int ipoib_alloc_rx_skb(struct net_device *dev, int id) */ 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; } @@ -174,7 +172,7 @@ 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 & ~IPOIB_OP_RECV; struct sk_buff *skb; - dma_addr_t addr; + u64 addr; ipoib_dbg_data(priv, "recv completion: id %d, op %d, status: %d\n", wr_id, wc->opcode, wc->status); @@ -193,8 +191,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 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); + 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; @@ -212,8 +210,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n", wc->byte_len, wc->slid); - dma_unmap_single(priv->ca->dma_device, addr, - IPOIB_BUF_SIZE, DMA_FROM_DEVICE); + ib_dma_unmap_single(priv->ca, addr, IPOIB_BUF_SIZE, DMA_FROM_DEVICE); skb_put(skb, wc->byte_len); skb_pull(skb, IB_GRH_BYTES); @@ -261,10 +258,8 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) tx_req = &priv->tx_ring[wr_id]; - dma_unmap_single(priv->ca->dma_device, - pci_unmap_addr(tx_req, mapping), - tx_req->skb->len, - DMA_TO_DEVICE); + ib_dma_unmap_single(priv->ca, tx_req->mapping, + tx_req->skb->len, DMA_TO_DEVICE); ++priv->stats.tx_packets; priv->stats.tx_bytes += tx_req->skb->len; @@ -311,7 +306,7 @@ 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; @@ -330,7 +325,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_tx_buf *tx_req; - dma_addr_t addr; + u64 addr; if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) { ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n", @@ -353,21 +348,20 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, */ 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); - if (unlikely(dma_mapping_error(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; } - pci_unmap_addr_set(tx_req, mapping, addr); + tx_req->mapping = addr; 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; @@ -538,24 +532,27 @@ int ipoib_ib_dev_stop(struct net_device *dev) while ((int) priv->tx_tail - (int) priv->tx_head < 0) { tx_req = &priv->tx_ring[priv->tx_tail & (ipoib_sendq_size - 1)]; - dma_unmap_single(priv->ca->dma_device, - pci_unmap_addr(tx_req, mapping), - tx_req->skb->len, - DMA_TO_DEVICE); + 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_recvq_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; }