net: via-rhine: reduce usage of the PCI-specific struct

Use more generic data structures instead of struct pci_dev wherever
possible in preparation for OF bus binding

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 0674d0f..20b83f1 100644 (file)
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -446,7 +446,8 @@ struct rhine_private {
        unsigned char *tx_bufs;
        dma_addr_t tx_bufs_dma;
 
-       struct pci_dev *pdev;
+       int revision;
+       int irq;
        long pioaddr;
        struct net_device *dev;
        struct napi_struct napi;
@@ -701,7 +702,7 @@ static void rhine_reload_eeprom(long pioaddr, struct net_device *dev)
 static void rhine_poll(struct net_device *dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
-       const int irq = rp->pdev->irq;
+       const int irq = rp->irq;
 
        disable_irq(irq);
        rhine_interrupt(irq, dev);
@@ -871,6 +872,8 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
        struct net_device *dev;
        struct rhine_private *rp;
+       struct device *hwdev = &pdev->dev;
+       int revision = pdev->revision;
        int i, rc;
        u32 quirks;
        long pioaddr;
@@ -893,21 +896,19 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        phy_id = 0;
        quirks = 0;
        name = "Rhine";
-       if (pdev->revision < VTunknown0) {
+       if (revision < VTunknown0) {
                quirks = rqRhineI;
                io_size = 128;
-       }
-       else if (pdev->revision >= VT6102) {
+       } else if (revision >= VT6102) {
                quirks = rqWOL | rqForceReset;
-               if (pdev->revision < VT6105) {
+               if (revision < VT6105) {
                        name = "Rhine II";
                        quirks |= rqStatusWBRace;       /* Rhine-II exclusive */
-               }
-               else {
+               } else {
                        phy_id = 1;     /* Integrated PHY, phy_id fixed to 1 */
-                       if (pdev->revision >= VT6105_B0)
+                       if (revision >= VT6105_B0)
                                quirks |= rq6patterns;
-                       if (pdev->revision < VT6105M)
+                       if (revision < VT6105M)
                                name = "Rhine III";
                        else
                                name = "Rhine III (Management Adapter)";
@@ -919,10 +920,9 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                goto err_out;
 
        /* this should always be supported */
-       rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+       rc = dma_set_mask(hwdev, DMA_BIT_MASK(32));
        if (rc) {
-               dev_err(&pdev->dev,
-                       "32-bit DMA addresses not supported by the card!?\n");
+               dev_err(hwdev, "32-bit DMA addresses not supported by the card!?\n");
                goto err_out_pci_disable;
        }
 
@@ -930,7 +930,7 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        if ((pci_resource_len(pdev, 0) < io_size) ||
            (pci_resource_len(pdev, 1) < io_size)) {
                rc = -EIO;
-               dev_err(&pdev->dev, "Insufficient PCI resources, aborting\n");
+               dev_err(hwdev, "Insufficient PCI resources, aborting\n");
                goto err_out_pci_disable;
        }
 
@@ -944,13 +944,13 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                rc = -ENOMEM;
                goto err_out_pci_disable;
        }
-       SET_NETDEV_DEV(dev, &pdev->dev);
+       SET_NETDEV_DEV(dev, hwdev);
 
        rp = netdev_priv(dev);
        rp->dev = dev;
+       rp->revision = revision;
        rp->quirks = quirks;
        rp->pioaddr = pioaddr;
-       rp->pdev = pdev;
        rp->msg_enable = netif_msg_init(debug, RHINE_MSG_DEFAULT);
 
        rc = pci_request_regions(pdev, DRV_NAME);
@@ -960,9 +960,9 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        ioaddr = pci_iomap(pdev, bar, io_size);
        if (!ioaddr) {
                rc = -EIO;
-               dev_err(&pdev->dev,
+               dev_err(hwdev,
                        "ioremap failed for device %s, region 0x%X @ 0x%lX\n",
-                       pci_name(pdev), io_size, memaddr);
+                       dev_name(hwdev), io_size, memaddr);
                goto err_out_free_res;
        }
 
@@ -977,7 +977,7 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                unsigned char b = readb(ioaddr+reg);
                if (a != b) {
                        rc = -EIO;
-                       dev_err(&pdev->dev,
+                       dev_err(hwdev,
                                "MMIO do not match PIO [%02x] (%02x != %02x)\n",
                                reg, a, b);
                        goto err_out_unmap;
@@ -986,6 +986,7 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 #endif /* USE_MMIO */
 
        rp->base = ioaddr;
+       rp->irq = pdev->irq;
 
        u64_stats_init(&rp->tx_stats.syncp);
        u64_stats_init(&rp->rx_stats.syncp);
@@ -1030,7 +1031,7 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        if (rp->quirks & rqRhineI)
                dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM;
 
-       if (pdev->revision >= VT6105M)
+       if (rp->revision >= VT6105M)
                dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
                                 NETIF_F_HW_VLAN_CTAG_RX |
                                 NETIF_F_HW_VLAN_CTAG_FILTER;
@@ -1047,9 +1048,9 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 #else
                    (long)ioaddr,
 #endif
-                   dev->dev_addr, pdev->irq);
+                   dev->dev_addr, rp->irq);
 
-       pci_set_drvdata(pdev, dev);
+       dev_set_drvdata(hwdev, dev);
 
        {
                u16 mii_cmd;
@@ -1093,10 +1094,11 @@ err_out:
 static int alloc_ring(struct net_device* dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        void *ring;
        dma_addr_t ring_dma;
 
-       ring = dma_alloc_coherent(&rp->pdev->dev,
+       ring = dma_alloc_coherent(hwdev,
                                  RX_RING_SIZE * sizeof(struct rx_desc) +
                                  TX_RING_SIZE * sizeof(struct tx_desc),
                                  &ring_dma,
@@ -1106,12 +1108,12 @@ static int alloc_ring(struct net_device* dev)
                return -ENOMEM;
        }
        if (rp->quirks & rqRhineI) {
-               rp->tx_bufs = dma_alloc_coherent(&rp->pdev->dev,
+               rp->tx_bufs = dma_alloc_coherent(hwdev,
                                                 PKT_BUF_SZ * TX_RING_SIZE,
                                                 &rp->tx_bufs_dma,
                                                 GFP_ATOMIC);
                if (rp->tx_bufs == NULL) {
-                       dma_free_coherent(&rp->pdev->dev,
+                       dma_free_coherent(hwdev,
                                          RX_RING_SIZE * sizeof(struct rx_desc) +
                                          TX_RING_SIZE * sizeof(struct tx_desc),
                                          ring, ring_dma);
@@ -1130,15 +1132,16 @@ static int alloc_ring(struct net_device* dev)
 static void free_ring(struct net_device* dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
 
-       dma_free_coherent(&rp->pdev->dev,
+       dma_free_coherent(hwdev,
                          RX_RING_SIZE * sizeof(struct rx_desc) +
                          TX_RING_SIZE * sizeof(struct tx_desc),
                          rp->rx_ring, rp->rx_ring_dma);
        rp->tx_ring = NULL;
 
        if (rp->tx_bufs)
-               dma_free_coherent(&rp->pdev->dev, PKT_BUF_SZ * TX_RING_SIZE,
+               dma_free_coherent(hwdev, PKT_BUF_SZ * TX_RING_SIZE,
                                  rp->tx_bufs, rp->tx_bufs_dma);
 
        rp->tx_bufs = NULL;
@@ -1148,6 +1151,7 @@ static void free_ring(struct net_device* dev)
 static void alloc_rbufs(struct net_device *dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        dma_addr_t next;
        int i;
 
@@ -1176,9 +1180,9 @@ static void alloc_rbufs(struct net_device *dev)
                        break;
 
                rp->rx_skbuff_dma[i] =
-                       dma_map_single(&rp->pdev->dev, skb->data, rp->rx_buf_sz,
+                       dma_map_single(hwdev, skb->data, rp->rx_buf_sz,
                                       DMA_FROM_DEVICE);
-               if (dma_mapping_error(&rp->pdev->dev, rp->rx_skbuff_dma[i])) {
+               if (dma_mapping_error(hwdev, rp->rx_skbuff_dma[i])) {
                        rp->rx_skbuff_dma[i] = 0;
                        dev_kfree_skb(skb);
                        break;
@@ -1192,6 +1196,7 @@ static void alloc_rbufs(struct net_device *dev)
 static void free_rbufs(struct net_device* dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        int i;
 
        /* Free all the skbuffs in the Rx queue. */
@@ -1199,7 +1204,7 @@ static void free_rbufs(struct net_device* dev)
                rp->rx_ring[i].rx_status = 0;
                rp->rx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */
                if (rp->rx_skbuff[i]) {
-                       dma_unmap_single(&rp->pdev->dev,
+                       dma_unmap_single(hwdev,
                                         rp->rx_skbuff_dma[i],
                                         rp->rx_buf_sz, DMA_FROM_DEVICE);
                        dev_kfree_skb(rp->rx_skbuff[i]);
@@ -1232,6 +1237,7 @@ static void alloc_tbufs(struct net_device* dev)
 static void free_tbufs(struct net_device* dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        int i;
 
        for (i = 0; i < TX_RING_SIZE; i++) {
@@ -1240,7 +1246,7 @@ static void free_tbufs(struct net_device* dev)
                rp->tx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */
                if (rp->tx_skbuff[i]) {
                        if (rp->tx_skbuff_dma[i]) {
-                               dma_unmap_single(&rp->pdev->dev,
+                               dma_unmap_single(hwdev,
                                                 rp->tx_skbuff_dma[i],
                                                 rp->tx_skbuff[i]->len,
                                                 DMA_TO_DEVICE);
@@ -1471,7 +1477,7 @@ static void init_registers(struct net_device *dev)
 
        rhine_set_rx_mode(dev);
 
-       if (rp->pdev->revision >= VT6105M)
+       if (rp->revision >= VT6105M)
                rhine_init_cam_filter(dev);
 
        napi_enable(&rp->napi);
@@ -1583,16 +1589,15 @@ static int rhine_open(struct net_device *dev)
        void __iomem *ioaddr = rp->base;
        int rc;
 
-       rc = request_irq(rp->pdev->irq, rhine_interrupt, IRQF_SHARED, dev->name,
-                       dev);
+       rc = request_irq(rp->irq, rhine_interrupt, IRQF_SHARED, dev->name, dev);
        if (rc)
                return rc;
 
-       netif_dbg(rp, ifup, dev, "%s() irq %d\n", __func__, rp->pdev->irq);
+       netif_dbg(rp, ifup, dev, "%s() irq %d\n", __func__, rp->irq);
 
        rc = alloc_ring(dev);
        if (rc) {
-               free_irq(rp->pdev->irq, dev);
+               free_irq(rp->irq, dev);
                return rc;
        }
        alloc_rbufs(dev);
@@ -1661,6 +1666,7 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
                                  struct net_device *dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        void __iomem *ioaddr = rp->base;
        unsigned entry;
 
@@ -1697,9 +1703,9 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
                                                       rp->tx_bufs));
        } else {
                rp->tx_skbuff_dma[entry] =
-                       dma_map_single(&rp->pdev->dev, skb->data, skb->len,
+                       dma_map_single(hwdev, skb->data, skb->len,
                                       DMA_TO_DEVICE);
-               if (dma_mapping_error(&rp->pdev->dev, rp->tx_skbuff_dma[entry])) {
+               if (dma_mapping_error(hwdev, rp->tx_skbuff_dma[entry])) {
                        dev_kfree_skb_any(skb);
                        rp->tx_skbuff_dma[entry] = 0;
                        dev->stats.tx_dropped++;
@@ -1790,6 +1796,7 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance)
 static void rhine_tx(struct net_device *dev)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        int txstatus = 0, entry = rp->dirty_tx % TX_RING_SIZE;
 
        /* find and cleanup dirty tx descriptors */
@@ -1833,7 +1840,7 @@ static void rhine_tx(struct net_device *dev)
                }
                /* Free the original skb. */
                if (rp->tx_skbuff_dma[entry]) {
-                       dma_unmap_single(&rp->pdev->dev,
+                       dma_unmap_single(hwdev,
                                         rp->tx_skbuff_dma[entry],
                                         rp->tx_skbuff[entry]->len,
                                         DMA_TO_DEVICE);
@@ -1865,6 +1872,7 @@ static inline u16 rhine_get_vlan_tci(struct sk_buff *skb, int data_size)
 static int rhine_rx(struct net_device *dev, int limit)
 {
        struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
        int count;
        int entry = rp->cur_rx % RX_RING_SIZE;
 
@@ -1926,7 +1934,7 @@ static int rhine_rx(struct net_device *dev, int limit)
                        if (pkt_len < rx_copybreak)
                                skb = netdev_alloc_skb_ip_align(dev, pkt_len);
                        if (skb) {
-                               dma_sync_single_for_cpu(&rp->pdev->dev,
+                               dma_sync_single_for_cpu(hwdev,
                                                        rp->rx_skbuff_dma[entry],
                                                        rp->rx_buf_sz,
                                                        DMA_FROM_DEVICE);
@@ -1935,7 +1943,7 @@ static int rhine_rx(struct net_device *dev, int limit)
                                                 rp->rx_skbuff[entry]->data,
                                                 pkt_len);
                                skb_put(skb, pkt_len);
-                               dma_sync_single_for_device(&rp->pdev->dev,
+                               dma_sync_single_for_device(hwdev,
                                                           rp->rx_skbuff_dma[entry],
                                                           rp->rx_buf_sz,
                                                           DMA_FROM_DEVICE);
@@ -1947,7 +1955,7 @@ static int rhine_rx(struct net_device *dev, int limit)
                                }
                                rp->rx_skbuff[entry] = NULL;
                                skb_put(skb, pkt_len);
-                               dma_unmap_single(&rp->pdev->dev,
+                               dma_unmap_single(hwdev,
                                                 rp->rx_skbuff_dma[entry],
                                                 rp->rx_buf_sz,
                                                 DMA_FROM_DEVICE);
@@ -1981,10 +1989,11 @@ static int rhine_rx(struct net_device *dev, int limit)
                        if (skb == NULL)
                                break;  /* Better luck next round. */
                        rp->rx_skbuff_dma[entry] =
-                               dma_map_single(&rp->pdev->dev, skb->data,
+                               dma_map_single(hwdev, skb->data,
                                               rp->rx_buf_sz,
                                               DMA_FROM_DEVICE);
-                       if (dma_mapping_error(&rp->pdev->dev, rp->rx_skbuff_dma[entry])) {
+                       if (dma_mapping_error(hwdev,
+                                             rp->rx_skbuff_dma[entry])) {
                                dev_kfree_skb(skb);
                                rp->rx_skbuff_dma[entry] = 0;
                                break;
@@ -2105,7 +2114,7 @@ static void rhine_set_rx_mode(struct net_device *dev)
                /* Too many to match, or accept all multicasts. */
                iowrite32(0xffffffff, ioaddr + MulticastFilter0);
                iowrite32(0xffffffff, ioaddr + MulticastFilter1);
-       } else if (rp->pdev->revision >= VT6105M) {
+       } else if (rp->revision >= VT6105M) {
                int i = 0;
                u32 mCAMmask = 0;       /* 32 mCAMs (6105M and better) */
                netdev_for_each_mc_addr(ha, dev) {
@@ -2127,7 +2136,7 @@ static void rhine_set_rx_mode(struct net_device *dev)
                iowrite32(mc_filter[1], ioaddr + MulticastFilter1);
        }
        /* enable/disable VLAN receive filtering */
-       if (rp->pdev->revision >= VT6105M) {
+       if (rp->revision >= VT6105M) {
                if (dev->flags & IFF_PROMISC)
                        BYTE_REG_BITS_OFF(BCR1_VIDFR, ioaddr + PCIBusConfig1);
                else
@@ -2138,11 +2147,11 @@ static void rhine_set_rx_mode(struct net_device *dev)
 
 static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
-       struct rhine_private *rp = netdev_priv(dev);
+       struct device *hwdev = dev->dev.parent;
 
        strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
        strlcpy(info->version, DRV_VERSION, sizeof(info->version));
-       strlcpy(info->bus_info, pci_name(rp->pdev), sizeof(info->bus_info));
+       strlcpy(info->bus_info, dev_name(hwdev), sizeof(info->bus_info));
 }
 
 static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
@@ -2279,7 +2288,7 @@ static int rhine_close(struct net_device *dev)
        /* Stop the chip's Tx and Rx processes. */
        iowrite16(CmdStop, ioaddr + ChipCmd);
 
-       free_irq(rp->pdev->irq, dev);
+       free_irq(rp->irq, dev);
        free_rbufs(dev);
        free_tbufs(dev);
        free_ring(dev);
@@ -2356,8 +2365,7 @@ static void rhine_shutdown (struct pci_dev *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int rhine_suspend(struct device *device)
 {
-       struct pci_dev *pdev = to_pci_dev(device);
-       struct net_device *dev = pci_get_drvdata(pdev);
+       struct net_device *dev = dev_get_drvdata(device);
        struct rhine_private *rp = netdev_priv(dev);
 
        if (!netif_running(dev))
@@ -2369,15 +2377,15 @@ static int rhine_suspend(struct device *device)
 
        netif_device_detach(dev);
 
-       rhine_shutdown(pdev);
+       if (dev_is_pci(device))
+               rhine_shutdown(to_pci_dev(device));
 
        return 0;
 }
 
 static int rhine_resume(struct device *device)
 {
-       struct pci_dev *pdev = to_pci_dev(device);
-       struct net_device *dev = pci_get_drvdata(pdev);
+       struct net_device *dev = dev_get_drvdata(device);
        struct rhine_private *rp = netdev_priv(dev);
 
        if (!netif_running(dev))