Commit 37ccf9df authored by Ralph Campbell's avatar Ralph Campbell Committed by Roland Dreier

IPoIB: Use the new verbs DMA mapping functions

Convert IPoIB to use the new DMA mapping functions
for kernel verbs consumers.
Signed-off-by: default avatarRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 1527106f
......@@ -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;
};
/*
......
......@@ -109,8 +109,7 @@ static int ipoib_ib_post_receive(struct net_device *dev, int id)
ret = ib_post_recv(priv->qp, &param, &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,
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,
addr = ib_dma_map_single(priv->ca, skb->data, IPOIB_BUF_SIZE,
DMA_FROM_DEVICE);
if (unlikely(dma_mapping_error(addr))) {
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);
......@@ -193,7 +191,7 @@ 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,
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;
......@@ -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,
addr = ib_dma_map_single(priv->ca, skb->data, skb->len,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(addr))) {
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;
......@@ -538,23 +532,26 @@ 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),
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),
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(priv->rx_ring[i].skb);
priv->rx_ring[i].skb = NULL;
dev_kfree_skb_any(rx_req->skb);
rx_req->skb = NULL;
}
goto timeout;
......
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