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Date: Fri, 13 Jan 2017 13:33:57 +0200
From: Yuval Shaia <yuval.shaia@...cle.com>
To: Bart Van Assche <bart.vanassche@...disk.com>
Cc: Doug Ledford <dledford@...hat.com>, linux-rdma@...r.kernel.org,
linux-kernel@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2 16/26] IB/IPoIB: Inline ib_dma_map_*() functions
On Thu, Jan 12, 2017 at 11:07:08AM -0800, Bart Van Assche wrote:
> Signed-off-by: Bart Van Assche <bart.vanassche@...disk.com>
> Reviewed-by: Christoph Hellwig <hch@....de>
> Reviewed-by: Sagi Grimberg <sagi@...mberg.me>
> ---
> drivers/infiniband/ulp/ipoib/ipoib_cm.c | 34 +++++++++++++++-----------
> drivers/infiniband/ulp/ipoib/ipoib_ib.c | 42 +++++++++++++++++----------------
> 2 files changed, 42 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
> index 096c4f6fbd65..6d91593852e9 100644
> --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
> +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
> @@ -83,10 +83,12 @@ static void ipoib_cm_dma_unmap_rx(struct ipoib_dev_priv *priv, int frags,
> {
> int i;
>
> - ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
> + dma_unmap_single(priv->ca->dma_device, mapping[0], IPOIB_CM_HEAD_SIZE,
> + DMA_FROM_DEVICE);
>
> for (i = 0; i < frags; ++i)
> - ib_dma_unmap_page(priv->ca, mapping[i + 1], PAGE_SIZE, DMA_FROM_DEVICE);
> + dma_unmap_page(priv->ca->dma_device, mapping[i + 1], PAGE_SIZE,
> + DMA_FROM_DEVICE);
> }
>
> static int ipoib_cm_post_receive_srq(struct net_device *dev, int id)
> @@ -158,9 +160,9 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
> */
> skb_reserve(skb, IPOIB_CM_RX_RESERVE);
>
> - mapping[0] = ib_dma_map_single(priv->ca, skb->data, IPOIB_CM_HEAD_SIZE,
> - DMA_FROM_DEVICE);
> - if (unlikely(ib_dma_mapping_error(priv->ca, mapping[0]))) {
> + mapping[0] = dma_map_single(priv->ca->dma_device, skb->data,
> + IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
> + if (unlikely(dma_mapping_error(priv->ca->dma_device, mapping[0]))) {
> dev_kfree_skb_any(skb);
> return NULL;
> }
> @@ -172,9 +174,9 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
> goto partial_error;
> skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
>
> - mapping[i + 1] = ib_dma_map_page(priv->ca, page,
> - 0, PAGE_SIZE, DMA_FROM_DEVICE);
> - if (unlikely(ib_dma_mapping_error(priv->ca, mapping[i + 1])))
> + mapping[i + 1] = dma_map_page(priv->ca->dma_device, page,
> + 0, PAGE_SIZE, DMA_FROM_DEVICE);
> + if (unlikely(dma_mapping_error(priv->ca->dma_device, mapping[i + 1])))
> goto partial_error;
> }
>
> @@ -183,10 +185,12 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
>
> partial_error:
>
> - ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
> + dma_unmap_single(priv->ca->dma_device, mapping[0], IPOIB_CM_HEAD_SIZE,
> + DMA_FROM_DEVICE);
>
> for (; i > 0; --i)
> - ib_dma_unmap_page(priv->ca, mapping[i], PAGE_SIZE, DMA_FROM_DEVICE);
> + dma_unmap_page(priv->ca->dma_device, mapping[i], PAGE_SIZE,
> + DMA_FROM_DEVICE);
>
> dev_kfree_skb_any(skb);
> return NULL;
> @@ -626,11 +630,13 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
> small_skb = dev_alloc_skb(dlen + IPOIB_CM_RX_RESERVE);
> if (small_skb) {
> skb_reserve(small_skb, IPOIB_CM_RX_RESERVE);
> - ib_dma_sync_single_for_cpu(priv->ca, rx_ring[wr_id].mapping[0],
> - dlen, DMA_FROM_DEVICE);
> + dma_sync_single_for_cpu(priv->ca->dma_device,
> + rx_ring[wr_id].mapping[0],
> + dlen, DMA_FROM_DEVICE);
> skb_copy_from_linear_data(skb, small_skb->data, dlen);
> - ib_dma_sync_single_for_device(priv->ca, rx_ring[wr_id].mapping[0],
> - dlen, DMA_FROM_DEVICE);
> + dma_sync_single_for_device(priv->ca->dma_device,
> + rx_ring[wr_id].mapping[0],
> + dlen, DMA_FROM_DEVICE);
> skb_put(small_skb, dlen);
> skb = small_skb;
> goto copied;
> diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
> index 5038f9d2d753..79204bd966bd 100644
> --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
> +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
> @@ -92,9 +92,8 @@ void ipoib_free_ah(struct kref *kref)
> static void ipoib_ud_dma_unmap_rx(struct ipoib_dev_priv *priv,
> u64 mapping[IPOIB_UD_RX_SG])
> {
> - ib_dma_unmap_single(priv->ca, mapping[0],
> - IPOIB_UD_BUF_SIZE(priv->max_ib_mtu),
> - DMA_FROM_DEVICE);
> + dma_unmap_single(priv->ca->dma_device, mapping[0],
> + IPOIB_UD_BUF_SIZE(priv->max_ib_mtu), DMA_FROM_DEVICE);
> }
>
> static int ipoib_ib_post_receive(struct net_device *dev, int id)
> @@ -139,9 +138,9 @@ static struct sk_buff *ipoib_alloc_rx_skb(struct net_device *dev, int id)
> skb_reserve(skb, sizeof(struct ipoib_pseudo_header));
>
> mapping = priv->rx_ring[id].mapping;
> - mapping[0] = ib_dma_map_single(priv->ca, skb->data, buf_size,
> - DMA_FROM_DEVICE);
> - if (unlikely(ib_dma_mapping_error(priv->ca, mapping[0])))
> + mapping[0] = dma_map_single(priv->ca->dma_device, skb->data, buf_size,
> + DMA_FROM_DEVICE);
> + if (unlikely(dma_mapping_error(priv->ca->dma_device, mapping[0])))
> goto error;
>
> priv->rx_ring[id].skb = skb;
> @@ -278,9 +277,9 @@ int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req)
> int off;
>
> if (skb_headlen(skb)) {
> - mapping[0] = ib_dma_map_single(ca, skb->data, skb_headlen(skb),
> - DMA_TO_DEVICE);
> - if (unlikely(ib_dma_mapping_error(ca, mapping[0])))
> + mapping[0] = dma_map_single(ca->dma_device, skb->data,
> + skb_headlen(skb), DMA_TO_DEVICE);
> + if (unlikely(dma_mapping_error(ca->dma_device, mapping[0])))
> return -EIO;
>
> off = 1;
> @@ -289,11 +288,12 @@ int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req)
>
> for (i = 0; i < skb_shinfo(skb)->nr_frags; ++i) {
> const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
> - mapping[i + off] = ib_dma_map_page(ca,
> - skb_frag_page(frag),
> - frag->page_offset, skb_frag_size(frag),
> - DMA_TO_DEVICE);
> - if (unlikely(ib_dma_mapping_error(ca, mapping[i + off])))
> + mapping[i + off] = dma_map_page(ca->dma_device,
> + skb_frag_page(frag),
> + frag->page_offset,
> + skb_frag_size(frag),
> + DMA_TO_DEVICE);
> + if (unlikely(dma_mapping_error(ca->dma_device, mapping[i + off])))
> goto partial_error;
> }
> return 0;
> @@ -302,11 +302,13 @@ int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req)
> for (; i > 0; --i) {
> const skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
>
> - ib_dma_unmap_page(ca, mapping[i - !off], skb_frag_size(frag), DMA_TO_DEVICE);
> + dma_unmap_page(ca->dma_device, mapping[i - !off],
> + skb_frag_size(frag), DMA_TO_DEVICE);
> }
>
> if (off)
> - ib_dma_unmap_single(ca, mapping[0], skb_headlen(skb), DMA_TO_DEVICE);
> + dma_unmap_single(ca->dma_device, mapping[0], skb_headlen(skb),
> + DMA_TO_DEVICE);
>
> return -EIO;
> }
> @@ -320,8 +322,8 @@ void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
> int off;
>
> if (skb_headlen(skb)) {
> - ib_dma_unmap_single(priv->ca, mapping[0], skb_headlen(skb),
> - DMA_TO_DEVICE);
> + dma_unmap_single(priv->ca->dma_device, mapping[0],
> + skb_headlen(skb), DMA_TO_DEVICE);
> off = 1;
> } else
> off = 0;
> @@ -329,8 +331,8 @@ void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
> for (i = 0; i < skb_shinfo(skb)->nr_frags; ++i) {
> const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
>
> - ib_dma_unmap_page(priv->ca, mapping[i + off],
> - skb_frag_size(frag), DMA_TO_DEVICE);
> + dma_unmap_page(priv->ca->dma_device, mapping[i + off],
> + skb_frag_size(frag), DMA_TO_DEVICE);
> }
> }
>
Reviewed-by: Yuval Shaia <yuval.shaia@...cle.com>
> --
> 2.11.0
>
> --
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