From: Felix Fietkau Date: Wed, 26 Nov 2014 18:00:52 +0000 (+0000) Subject: cns3xxx: fix passing the device to dma mapping ops X-Git-Tag: reboot~5230 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=365cf9d10c5f4c0707a952e508445c114f801d12;p=openwrt%2Fstaging%2Fpepe2k.git cns3xxx: fix passing the device to dma mapping ops Signed-off-by: Felix Fietkau SVN-Revision: 43394 --- diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c index b7e3758ba6..b17af7f4c7 100644 --- a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c +++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c @@ -288,6 +288,7 @@ struct sw { struct _rx_ring rx_ring; struct sk_buff *frag_first; struct sk_buff *frag_last; + struct device *dev; int rx_irq; int stat_irq; }; @@ -524,9 +525,9 @@ static void cns3xxx_alloc_rx_buf(struct sw *sw, int received) if (!buf) break; - phys = dma_map_single(NULL, buf + SKB_HEAD_ALIGN, + phys = dma_map_single(sw->dev, buf + SKB_HEAD_ALIGN, RX_SEGMENT_MRU, DMA_FROM_DEVICE); - if (dma_mapping_error(NULL, phys)) { + if (dma_mapping_error(sw->dev, phys)) { kfree(buf); break; } @@ -600,7 +601,7 @@ static void eth_complete_tx(struct sw *sw) tx_ring->buff_tab[index] = 0; if (skb) dev_kfree_skb_any(skb); - dma_unmap_single(NULL, tx_ring->phys_tab[index], + dma_unmap_single(sw->dev, tx_ring->phys_tab[index], desc->sdl, DMA_TO_DEVICE); if (++index == TX_DESCS) { index = 0; @@ -635,7 +636,7 @@ static int eth_poll(struct napi_struct *napi, int budget) break; /* process received frame */ - dma_unmap_single(NULL, rx_ring->phys_tab[i], + dma_unmap_single(sw->dev, rx_ring->phys_tab[i], RX_SEGMENT_MRU, DMA_FROM_DEVICE); skb = build_skb(rx_ring->buff_tab[i], 0); @@ -735,13 +736,14 @@ static int eth_poll(struct napi_struct *napi, int budget) return received; } -static void eth_set_desc(struct _tx_ring *tx_ring, int index, int index_last, - void *data, int len, u32 config0, u32 pmap) +static void eth_set_desc(struct sw *sw, struct _tx_ring *tx_ring, int index, + int index_last, void *data, int len, u32 config0, + u32 pmap) { struct tx_desc *tx_desc = &(tx_ring)->desc[index]; unsigned int phys; - phys = dma_map_single(NULL, data, len, DMA_TO_DEVICE); + phys = dma_map_single(sw->dev, data, len, DMA_TO_DEVICE); tx_desc->sdp = phys; tx_desc->pmap = pmap; tx_ring->phys_tab[index] = phys; @@ -805,7 +807,7 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev) frag = &skb_shinfo(skb)->frags[i]; addr = page_address(skb_frag_page(frag)) + frag->page_offset; - eth_set_desc(tx_ring, index, index_last, addr, frag->size, + eth_set_desc(sw, tx_ring, index, index_last, addr, frag->size, config0, pmap); } @@ -816,12 +818,12 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev) index = (index + 1) % TX_DESCS; len0 -= skb1->len; - eth_set_desc(tx_ring, index, index_last, skb1->data, skb1->len, - config0, pmap); + eth_set_desc(sw, tx_ring, index, index_last, skb1->data, + skb1->len, config0, pmap); } tx_ring->buff_tab[index0] = skb; - eth_set_desc(tx_ring, index0, index_last, skb->data, len0, + eth_set_desc(sw, tx_ring, index0, index_last, skb->data, len0, config0 | FIRST_SEGMENT, pmap); wmb(); @@ -896,7 +898,7 @@ static int init_rings(struct sw *sw) __raw_writel(QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); - if (!(rx_dma_pool = dma_pool_create(DRV_NAME, NULL, + if (!(rx_dma_pool = dma_pool_create(DRV_NAME, sw->dev, RX_POOL_ALLOC_SIZE, 32, 0))) return -ENOMEM; @@ -920,9 +922,9 @@ static int init_rings(struct sw *sw) desc->fsd = 1; desc->lsd = 1; - desc->sdp = dma_map_single(NULL, buf + SKB_HEAD_ALIGN, + desc->sdp = dma_map_single(sw->dev, buf + SKB_HEAD_ALIGN, RX_SEGMENT_MRU, DMA_FROM_DEVICE); - if (dma_mapping_error(NULL, desc->sdp)) + if (dma_mapping_error(sw->dev, desc->sdp)) return -EIO; rx_ring->buff_tab[i] = buf; @@ -932,7 +934,7 @@ static int init_rings(struct sw *sw) __raw_writel(rx_ring->phys_addr, &sw->regs->fs_desc_ptr0); __raw_writel(rx_ring->phys_addr, &sw->regs->fs_desc_base_addr0); - if (!(tx_dma_pool = dma_pool_create(DRV_NAME, NULL, + if (!(tx_dma_pool = dma_pool_create(DRV_NAME, sw->dev, TX_POOL_ALLOC_SIZE, 32, 0))) return -ENOMEM; @@ -968,7 +970,7 @@ static void destroy_rings(struct sw *sw) if (!skb) continue; - dma_unmap_single(NULL, desc->sdp, RX_SEGMENT_MRU, + dma_unmap_single(sw->dev, desc->sdp, RX_SEGMENT_MRU, DMA_FROM_DEVICE); dev_kfree_skb(skb); } @@ -983,7 +985,7 @@ static void destroy_rings(struct sw *sw) struct tx_desc *desc = &(tx_ring)->desc[i]; struct sk_buff *skb = sw->tx_ring.buff_tab[i]; if (skb) { - dma_unmap_single(NULL, desc->sdp, + dma_unmap_single(sw->dev, desc->sdp, skb->len, DMA_TO_DEVICE); dev_kfree_skb(skb); } @@ -1199,6 +1201,7 @@ static int eth_init_one(struct platform_device *pdev) sw = netdev_priv(napi_dev); memset(sw, 0, sizeof(struct sw)); sw->regs = regs; + sw->dev = &pdev->dev; sw->rx_irq = platform_get_irq_byname(pdev, "eth_rx"); sw->stat_irq = platform_get_irq_byname(pdev, "eth_stat");