| Message ID | 1367119006-31280-4-git-send-email-linux@prisktech.co.nz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 28/04/13 15:16, Tony Prisk wrote: > Remove the pci_* dma functions and replace with the more generic > versions. > > In preparation of adding platform support, a new struct device *dev > is added to struct velocity_info which can be used by both the pci > and platform code. > > Signed-off-by: Tony Prisk <linux@prisktech.co.nz> > --- > drivers/net/ethernet/via/via-velocity.c | 51 +++++++++++++++---------------- > drivers/net/ethernet/via/via-velocity.h | 1 + > 2 files changed, 26 insertions(+), 26 deletions(-) > > diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c > index 1168666..a5fe892 100644 > --- a/drivers/net/ethernet/via/via-velocity.c > +++ b/drivers/net/ethernet/via/via-velocity.c > @@ -46,6 +46,7 @@ > #include <linux/crc-ccitt.h> > #include <linux/crc32.h> > #include <linux/delay.h> > +#include <linux/dma-mapping.h> > #include <linux/errno.h> > #include <linux/etherdevice.h> > #include <linux/ethtool.h> > @@ -1457,7 +1458,6 @@ static int velocity_init_dma_rings(struct velocity_info *vptr) > struct velocity_opt *opt = &vptr->options; > const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc); > const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc); > - struct pci_dev *pdev = vptr->pdev; > dma_addr_t pool_dma; > void *pool; > unsigned int i; > @@ -1465,13 +1465,13 @@ static int velocity_init_dma_rings(struct velocity_info *vptr) > /* > * Allocate all RD/TD rings a single pool. > * > - * pci_alloc_consistent() fulfills the requirement for 64 bytes > + * dma_alloc_coherent() fulfills the requirement for 64 bytes > * alignment > */ > - pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq + > - rx_ring_size, &pool_dma); > + pool = dma_alloc_coherent(vptr->dev, tx_ring_size * vptr->tx.numq + > + rx_ring_size, &pool_dma, GFP_ATOMIC); > if (!pool) { > - dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n", > + dev_err(vptr->dev, "%s : DMA memory allocation failed.\n", > vptr->netdev->name); > return -ENOMEM; > } > @@ -1522,8 +1522,8 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) > */ > skb_reserve(rd_info->skb, > 64 - ((unsigned long) rd_info->skb->data & 63)); > - rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, > - vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); > + rd_info->skb_dma = dma_map_single(vptr->dev, rd_info->skb->data, > + vptr->rx.buf_sz, DMA_FROM_DEVICE); > > /* > * Fill in the descriptor to match > @@ -1586,8 +1586,8 @@ static void velocity_free_rd_ring(struct velocity_info *vptr) > > if (!rd_info->skb) > continue; > - pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, > - PCI_DMA_FROMDEVICE); > + dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz, > + DMA_FROM_DEVICE); > rd_info->skb_dma = 0; > > dev_kfree_skb(rd_info->skb); > @@ -1668,7 +1668,7 @@ static void velocity_free_dma_rings(struct velocity_info *vptr) > const int size = vptr->options.numrx * sizeof(struct rx_desc) + > vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq; > > - pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma); > + dma_free_coherent(vptr->dev, size, vptr->rx.ring, vptr->rx.pool_dma); > } > > static int velocity_init_rings(struct velocity_info *vptr, int mtu) > @@ -1725,8 +1725,8 @@ static void velocity_free_tx_buf(struct velocity_info *vptr, > pktlen = max_t(size_t, pktlen, > td->td_buf[i].size & ~TD_QUEUE); > > - pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], > - le16_to_cpu(pktlen), PCI_DMA_TODEVICE); > + dma_unmap_single(vptr->dev, tdinfo->skb_dma[i], > + le16_to_cpu(pktlen), DMA_TO_DEVICE); > } > } > dev_kfree_skb_irq(skb); > @@ -1748,8 +1748,8 @@ static void velocity_free_td_ring_entry(struct velocity_info *vptr, > if (td_info->skb) { > for (i = 0; i < td_info->nskb_dma; i++) { > if (td_info->skb_dma[i]) { > - pci_unmap_single(vptr->pdev, td_info->skb_dma[i], > - td_info->skb->len, PCI_DMA_TODEVICE); > + dma_unmap_single(vptr->dev, td_info->skb_dma[i], > + td_info->skb->len, DMA_TO_DEVICE); > td_info->skb_dma[i] = 0; > } > } > @@ -2027,7 +2027,6 @@ static inline void velocity_iph_realign(struct velocity_info *vptr, > */ > static int velocity_receive_frame(struct velocity_info *vptr, int idx) > { > - void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); > struct net_device_stats *stats = &vptr->netdev->stats; > struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); > struct rx_desc *rd = &(vptr->rx.ring[idx]); > @@ -2045,8 +2044,8 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) > > skb = rd_info->skb; > > - pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, > - vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); > + dma_sync_single_for_cpu(vptr->dev, rd_info->skb_dma, > + vptr->rx.buf_sz, DMA_FROM_DEVICE); > > /* > * Drop frame not meeting IEEE 802.3 > @@ -2059,19 +2058,18 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) > } > } > > - pci_action = pci_dma_sync_single_for_device; > - > velocity_rx_csum(rd, skb); > > if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { > velocity_iph_realign(vptr, skb, pkt_len); > - pci_action = pci_unmap_single; > rd_info->skb = NULL; > + dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz, > + DMA_FROM_DEVICE); > + } else { > + dma_sync_single_for_device(vptr->dev, rd_info->skb_dma, > + vptr->rx.buf_sz, DMA_FROM_DEVICE); > } > > - pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, > - PCI_DMA_FROMDEVICE); > - > skb_put(skb, pkt_len - 4); > skb->protocol = eth_type_trans(skb, vptr->netdev); > > @@ -2548,7 +2546,8 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, > * add it to the transmit ring. > */ > tdinfo->skb = skb; > - tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); > + tdinfo->skb_dma[0] = dma_map_single(vptr->dev, skb->data, pktlen, > + DMA_TO_DEVICE); > td_ptr->tdesc0.len = cpu_to_le16(pktlen); > td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); > td_ptr->td_buf[0].pa_high = 0; > @@ -2558,7 +2557,7 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, > for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { > const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; > > - tdinfo->skb_dma[i + 1] = skb_frag_dma_map(&vptr->pdev->dev, > + tdinfo->skb_dma[i + 1] = skb_frag_dma_map(vptr->dev, > frag, 0, > skb_frag_size(frag), > DMA_TO_DEVICE); > @@ -2635,6 +2634,7 @@ static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, > { > memset(vptr, 0, sizeof(struct velocity_info)); > > + vptr->dev = &pdev->dev; > vptr->pdev = pdev; > vptr->chip_id = info->chip_id; > vptr->tx.numq = info->txqueue; > @@ -2742,7 +2742,6 @@ static int velocity_found1(struct pci_dev *pdev, > SET_NETDEV_DEV(dev, &pdev->dev); > vptr = netdev_priv(dev); > > - > if (first) { > printk(KERN_INFO "%s Ver. %s\n", > VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); > diff --git a/drivers/net/ethernet/via/via-velocity.h b/drivers/net/ethernet/via/via-velocity.h > index ff8d7828..c38bbae 100644 > --- a/drivers/net/ethernet/via/via-velocity.h > +++ b/drivers/net/ethernet/via/via-velocity.h > @@ -1434,6 +1434,7 @@ struct velocity_opt { > #define GET_RD_BY_IDX(vptr, idx) (vptr->rd_ring[idx]) > > struct velocity_info { > + struct device *dev; > struct pci_dev *pdev; > struct net_device *netdev; > I noticed I forgot to add the return value checking for the new functions - will do for v2. Regards Tony Prisk
diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c index 1168666..a5fe892 100644 --- a/drivers/net/ethernet/via/via-velocity.c +++ b/drivers/net/ethernet/via/via-velocity.c @@ -46,6 +46,7 @@ #include <linux/crc-ccitt.h> #include <linux/crc32.h> #include <linux/delay.h> +#include <linux/dma-mapping.h> #include <linux/errno.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> @@ -1457,7 +1458,6 @@ static int velocity_init_dma_rings(struct velocity_info *vptr) struct velocity_opt *opt = &vptr->options; const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc); const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc); - struct pci_dev *pdev = vptr->pdev; dma_addr_t pool_dma; void *pool; unsigned int i; @@ -1465,13 +1465,13 @@ static int velocity_init_dma_rings(struct velocity_info *vptr) /* * Allocate all RD/TD rings a single pool. * - * pci_alloc_consistent() fulfills the requirement for 64 bytes + * dma_alloc_coherent() fulfills the requirement for 64 bytes * alignment */ - pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq + - rx_ring_size, &pool_dma); + pool = dma_alloc_coherent(vptr->dev, tx_ring_size * vptr->tx.numq + + rx_ring_size, &pool_dma, GFP_ATOMIC); if (!pool) { - dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n", + dev_err(vptr->dev, "%s : DMA memory allocation failed.\n", vptr->netdev->name); return -ENOMEM; } @@ -1522,8 +1522,8 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) */ skb_reserve(rd_info->skb, 64 - ((unsigned long) rd_info->skb->data & 63)); - rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, - vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); + rd_info->skb_dma = dma_map_single(vptr->dev, rd_info->skb->data, + vptr->rx.buf_sz, DMA_FROM_DEVICE); /* * Fill in the descriptor to match @@ -1586,8 +1586,8 @@ static void velocity_free_rd_ring(struct velocity_info *vptr) if (!rd_info->skb) continue; - pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, - PCI_DMA_FROMDEVICE); + dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz, + DMA_FROM_DEVICE); rd_info->skb_dma = 0; dev_kfree_skb(rd_info->skb); @@ -1668,7 +1668,7 @@ static void velocity_free_dma_rings(struct velocity_info *vptr) const int size = vptr->options.numrx * sizeof(struct rx_desc) + vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq; - pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma); + dma_free_coherent(vptr->dev, size, vptr->rx.ring, vptr->rx.pool_dma); } static int velocity_init_rings(struct velocity_info *vptr, int mtu) @@ -1725,8 +1725,8 @@ static void velocity_free_tx_buf(struct velocity_info *vptr, pktlen = max_t(size_t, pktlen, td->td_buf[i].size & ~TD_QUEUE); - pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], - le16_to_cpu(pktlen), PCI_DMA_TODEVICE); + dma_unmap_single(vptr->dev, tdinfo->skb_dma[i], + le16_to_cpu(pktlen), DMA_TO_DEVICE); } } dev_kfree_skb_irq(skb); @@ -1748,8 +1748,8 @@ static void velocity_free_td_ring_entry(struct velocity_info *vptr, if (td_info->skb) { for (i = 0; i < td_info->nskb_dma; i++) { if (td_info->skb_dma[i]) { - pci_unmap_single(vptr->pdev, td_info->skb_dma[i], - td_info->skb->len, PCI_DMA_TODEVICE); + dma_unmap_single(vptr->dev, td_info->skb_dma[i], + td_info->skb->len, DMA_TO_DEVICE); td_info->skb_dma[i] = 0; } } @@ -2027,7 +2027,6 @@ static inline void velocity_iph_realign(struct velocity_info *vptr, */ static int velocity_receive_frame(struct velocity_info *vptr, int idx) { - void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); struct net_device_stats *stats = &vptr->netdev->stats; struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); struct rx_desc *rd = &(vptr->rx.ring[idx]); @@ -2045,8 +2044,8 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) skb = rd_info->skb; - pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, - vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); + dma_sync_single_for_cpu(vptr->dev, rd_info->skb_dma, + vptr->rx.buf_sz, DMA_FROM_DEVICE); /* * Drop frame not meeting IEEE 802.3 @@ -2059,19 +2058,18 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) } } - pci_action = pci_dma_sync_single_for_device; - velocity_rx_csum(rd, skb); if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { velocity_iph_realign(vptr, skb, pkt_len); - pci_action = pci_unmap_single; rd_info->skb = NULL; + dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz, + DMA_FROM_DEVICE); + } else { + dma_sync_single_for_device(vptr->dev, rd_info->skb_dma, + vptr->rx.buf_sz, DMA_FROM_DEVICE); } - pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, - PCI_DMA_FROMDEVICE); - skb_put(skb, pkt_len - 4); skb->protocol = eth_type_trans(skb, vptr->netdev); @@ -2548,7 +2546,8 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, * add it to the transmit ring. */ tdinfo->skb = skb; - tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); + tdinfo->skb_dma[0] = dma_map_single(vptr->dev, skb->data, pktlen, + DMA_TO_DEVICE); td_ptr->tdesc0.len = cpu_to_le16(pktlen); td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); td_ptr->td_buf[0].pa_high = 0; @@ -2558,7 +2557,7 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb, for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - tdinfo->skb_dma[i + 1] = skb_frag_dma_map(&vptr->pdev->dev, + tdinfo->skb_dma[i + 1] = skb_frag_dma_map(vptr->dev, frag, 0, skb_frag_size(frag), DMA_TO_DEVICE); @@ -2635,6 +2634,7 @@ static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, { memset(vptr, 0, sizeof(struct velocity_info)); + vptr->dev = &pdev->dev; vptr->pdev = pdev; vptr->chip_id = info->chip_id; vptr->tx.numq = info->txqueue; @@ -2742,7 +2742,6 @@ static int velocity_found1(struct pci_dev *pdev, SET_NETDEV_DEV(dev, &pdev->dev); vptr = netdev_priv(dev); - if (first) { printk(KERN_INFO "%s Ver. %s\n", VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); diff --git a/drivers/net/ethernet/via/via-velocity.h b/drivers/net/ethernet/via/via-velocity.h index ff8d7828..c38bbae 100644 --- a/drivers/net/ethernet/via/via-velocity.h +++ b/drivers/net/ethernet/via/via-velocity.h @@ -1434,6 +1434,7 @@ struct velocity_opt { #define GET_RD_BY_IDX(vptr, idx) (vptr->rd_ring[idx]) struct velocity_info { + struct device *dev; struct pci_dev *pdev; struct net_device *netdev;
Remove the pci_* dma functions and replace with the more generic versions. In preparation of adding platform support, a new struct device *dev is added to struct velocity_info which can be used by both the pci and platform code. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> --- drivers/net/ethernet/via/via-velocity.c | 51 +++++++++++++++---------------- drivers/net/ethernet/via/via-velocity.h | 1 + 2 files changed, 26 insertions(+), 26 deletions(-)