-#define VERSION "0.22"
+#define VERSION "0.23"
/* ns83820.c by Benjamin LaHaise with contributions.
*
* Questions/comments/discussion to linux-ns83820@kvack.org.
* 0.20 - fix stupid RFEN thinko. i am such a smurf.
* 20040828 0.21 - add hardware vlan accleration
* by Neil Horman <nhorman@redhat.com>
- * 20050406 0.22 - improved DAC ifdefs from Andi Kleen
+ * 20050406 0.22 - improved DAC ifdefs from Andi Kleen
* - removal of dead code from Adrian Bunk
* - fix half duplex collision behaviour
* Driver Overview
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
-#include <linux/smp_lock.h>
#include <linux/workqueue.h>
#include <linux/init.h>
#include <linux/ip.h> /* for iph */
#define LINK_DOWN 0x02
#define LINK_UP 0x04
-#define HW_ADDR_LEN sizeof(dma_addr_t)
+#define HW_ADDR_LEN sizeof(dma_addr_t)
#define desc_addr_set(desc, addr) \
do { \
((desc)[0] = cpu_to_le32(addr)); \
struct sk_buff *skbs[NR_RX_DESC];
- u32 *next_rx_desc;
+ __le32 *next_rx_desc;
u16 next_rx, next_empty;
- u32 *descs;
+ __le32 *descs;
dma_addr_t phy_descs;
};
u8 __iomem *base;
struct pci_dev *pci_dev;
+ struct net_device *ndev;
#ifdef NS83820_VLAN_ACCEL_SUPPORT
struct vlan_group *vlgrp;
struct sk_buff *tx_skbs[NR_TX_DESC];
char pad[16] __attribute__((aligned(16)));
- u32 *tx_descs;
+ __le32 *tx_descs;
dma_addr_t tx_phy_descs;
struct timer_list tx_watchdog;
(((NR_TX_DESC-2 + dev->tx_done_idx - dev->tx_free_idx) % NR_TX_DESC) > MIN_TX_DESC_FREE)
-#ifdef NS83820_VLAN_ACCEL_SUPPORT
+#ifdef NS83820_VLAN_ACCEL_SUPPORT
static void ns83820_vlan_rx_register(struct net_device *ndev, struct vlan_group *grp)
{
struct ns83820 *dev = PRIV(ndev);
spin_unlock(&dev->tx_lock);
spin_unlock_irq(&dev->misc_lock);
}
-
-static void ns83820_vlan_rx_kill_vid(struct net_device *ndev, unsigned short vid)
-{
- struct ns83820 *dev = PRIV(ndev);
-
- spin_lock_irq(&dev->misc_lock);
- spin_lock(&dev->tx_lock);
- if (dev->vlgrp)
- dev->vlgrp->vlan_devices[vid] = NULL;
- spin_unlock(&dev->tx_lock);
- spin_unlock_irq(&dev->misc_lock);
-}
#endif
/* Packet Receiver
* conditions, still route realtime traffic with as low jitter as
* possible.
*/
-static inline void build_rx_desc(struct ns83820 *dev, u32 *desc, dma_addr_t link, dma_addr_t buf, u32 cmdsts, u32 extsts)
+static inline void build_rx_desc(struct ns83820 *dev, __le32 *desc, dma_addr_t link, dma_addr_t buf, u32 cmdsts, u32 extsts)
{
desc_addr_set(desc + DESC_LINK, link);
desc_addr_set(desc + DESC_BUFPTR, buf);
{
unsigned next_empty;
u32 cmdsts;
- u32 *sg;
+ __le32 *sg;
dma_addr_t buf;
next_empty = dev->rx_info.next_empty;
res &= 0xf;
skb_reserve(skb, res);
- skb->dev = ndev;
if (gfp != GFP_ATOMIC)
spin_lock_irqsave(&dev->rx_info.lock, flags);
res = ns83820_add_rx_skb(dev, skb);
}
/* REFILL */
-static inline void queue_refill(void *_dev)
+static inline void queue_refill(struct work_struct *work)
{
- struct net_device *ndev = _dev;
- struct ns83820 *dev = PRIV(ndev);
+ struct ns83820 *dev = container_of(work, struct ns83820, tq_refill);
+ struct net_device *ndev = dev->ndev;
rx_refill(ndev, GFP_KERNEL);
if (dev->rx_info.up)
}
/* rx_irq
- *
+ *
*/
static void FASTCALL(rx_irq(struct net_device *ndev));
static void fastcall rx_irq(struct net_device *ndev)
struct rx_info *info = &dev->rx_info;
unsigned next_rx;
int rx_rc, len;
- u32 cmdsts, *desc;
+ u32 cmdsts;
+ __le32 *desc;
unsigned long flags;
int nr = 0;
* that are 64 bytes with a vlan header appended
* like arp frames, or pings, are flagged as Runts
* when the tag is stripped and hardware. This
- * also means that the OK bit in the descriptor
+ * also means that the OK bit in the descriptor
* is cleared when the frame comes in so we have
* to do a specific length check here to make sure
* the frame would have been ok, had we not stripped
* the tag.
- */
+ */
if (likely((CMDSTS_OK & cmdsts) ||
- ((cmdsts & CMDSTS_RUNT) && len >= 56))) {
+ ((cmdsts & CMDSTS_RUNT) && len >= 56))) {
#else
if (likely(CMDSTS_OK & cmdsts)) {
#endif
skb->ip_summed = CHECKSUM_NONE;
}
skb->protocol = eth_type_trans(skb, ndev);
-#ifdef NS83820_VLAN_ACCEL_SUPPORT
+#ifdef NS83820_VLAN_ACCEL_SUPPORT
if(extsts & EXTSTS_VPKT) {
unsigned short tag;
tag = ntohs(extsts & EXTSTS_VTG_MASK);
static void do_tx_done(struct net_device *ndev)
{
struct ns83820 *dev = PRIV(ndev);
- u32 cmdsts, tx_done_idx, *desc;
+ u32 cmdsts, tx_done_idx;
+ __le32 *desc;
dprintk("do_tx_done(%p)\n", ndev);
tx_done_idx = dev->tx_done_idx;
dev_kfree_skb_irq(skb);
atomic_dec(&dev->nr_tx_skbs);
} else
- pci_unmap_page(dev->pci_dev,
+ pci_unmap_page(dev->pci_dev,
addr,
len,
PCI_DMA_TODEVICE);
struct sk_buff *skb = dev->tx_skbs[i];
dev->tx_skbs[i] = NULL;
if (skb) {
- u32 *desc = dev->tx_descs + (i * DESC_SIZE);
+ __le32 *desc = dev->tx_descs + (i * DESC_SIZE);
pci_unmap_single(dev->pci_dev,
desc_addr_get(desc + DESC_BUFPTR),
le32_to_cpu(desc[DESC_CMDSTS]) & CMDSTS_LEN_MASK,
skb_frag_t *frag;
int stopped = 0;
int do_intr = 0;
- volatile u32 *first_desc;
+ volatile __le32 *first_desc;
dprintk("ns83820_hard_start_xmit\n");
extsts = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
extsts |= EXTSTS_IPPKT;
- if (IPPROTO_TCP == skb->nh.iph->protocol)
+ if (IPPROTO_TCP == ip_hdr(skb)->protocol)
extsts |= EXTSTS_TCPPKT;
- else if (IPPROTO_UDP == skb->nh.iph->protocol)
+ else if (IPPROTO_UDP == ip_hdr(skb)->protocol)
extsts |= EXTSTS_UDPPKT;
}
first_desc = dev->tx_descs + (free_idx * DESC_SIZE);
for (;;) {
- volatile u32 *desc = dev->tx_descs + (free_idx * DESC_SIZE);
+ volatile __le32 *desc = dev->tx_descs + (free_idx * DESC_SIZE);
dprintk("frag[%3u]: %4u @ 0x%08Lx\n", free_idx, len,
(unsigned long long)buf);
return &dev->stats;
}
+/* Let ethtool retrieve info */
+static int ns83820_get_settings(struct net_device *ndev,
+ struct ethtool_cmd *cmd)
+{
+ struct ns83820 *dev = PRIV(ndev);
+ u32 cfg, tanar, tbicr;
+ int have_optical = 0;
+ int fullduplex = 0;
+
+ /*
+ * Here's the list of available ethtool commands from other drivers:
+ * cmd->advertising =
+ * cmd->speed =
+ * cmd->duplex =
+ * cmd->port = 0;
+ * cmd->phy_address =
+ * cmd->transceiver = 0;
+ * cmd->autoneg =
+ * cmd->maxtxpkt = 0;
+ * cmd->maxrxpkt = 0;
+ */
+
+ /* read current configuration */
+ cfg = readl(dev->base + CFG) ^ SPDSTS_POLARITY;
+ tanar = readl(dev->base + TANAR);
+ tbicr = readl(dev->base + TBICR);
+
+ if (dev->CFG_cache & CFG_TBI_EN) {
+ /* we have an optical interface */
+ have_optical = 1;
+ fullduplex = (cfg & CFG_DUPSTS) ? 1 : 0;
+
+ } else {
+ /* We have copper */
+ fullduplex = (cfg & CFG_DUPSTS) ? 1 : 0;
+ }
+
+ cmd->supported = SUPPORTED_Autoneg;
+
+ /* we have optical interface */
+ if (dev->CFG_cache & CFG_TBI_EN) {
+ cmd->supported |= SUPPORTED_1000baseT_Half |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_FIBRE;
+ cmd->port = PORT_FIBRE;
+ } /* TODO: else copper related support */
+
+ cmd->duplex = fullduplex ? DUPLEX_FULL : DUPLEX_HALF;
+ switch (cfg / CFG_SPDSTS0 & 3) {
+ case 2:
+ cmd->speed = SPEED_1000;
+ break;
+ case 1:
+ cmd->speed = SPEED_100;
+ break;
+ default:
+ cmd->speed = SPEED_10;
+ break;
+ }
+ cmd->autoneg = (tbicr & TBICR_MR_AN_ENABLE) ? 1: 0;
+ return 0;
+}
+
+/* Let ethool change settings*/
+static int ns83820_set_settings(struct net_device *ndev,
+ struct ethtool_cmd *cmd)
+{
+ struct ns83820 *dev = PRIV(ndev);
+ u32 cfg, tanar;
+ int have_optical = 0;
+ int fullduplex = 0;
+
+ /* read current configuration */
+ cfg = readl(dev->base + CFG) ^ SPDSTS_POLARITY;
+ tanar = readl(dev->base + TANAR);
+
+ if (dev->CFG_cache & CFG_TBI_EN) {
+ /* we have optical */
+ have_optical = 1;
+ fullduplex = (tanar & TANAR_FULL_DUP);
+
+ } else {
+ /* we have copper */
+ fullduplex = cfg & CFG_DUPSTS;
+ }
+
+ spin_lock_irq(&dev->misc_lock);
+ spin_lock(&dev->tx_lock);
+
+ /* Set duplex */
+ if (cmd->duplex != fullduplex) {
+ if (have_optical) {
+ /*set full duplex*/
+ if (cmd->duplex == DUPLEX_FULL) {
+ /* force full duplex */
+ writel(readl(dev->base + TXCFG)
+ | TXCFG_CSI | TXCFG_HBI | TXCFG_ATP,
+ dev->base + TXCFG);
+ writel(readl(dev->base + RXCFG) | RXCFG_RX_FD,
+ dev->base + RXCFG);
+ /* Light up full duplex LED */
+ writel(readl(dev->base + GPIOR) | GPIOR_GP1_OUT,
+ dev->base + GPIOR);
+ } else {
+ /*TODO: set half duplex */
+ }
+
+ } else {
+ /*we have copper*/
+ /* TODO: Set duplex for copper cards */
+ }
+ printk(KERN_INFO "%s: Duplex set via ethtool\n",
+ ndev->name);
+ }
+
+ /* Set autonegotiation */
+ if (1) {
+ if (cmd->autoneg == AUTONEG_ENABLE) {
+ /* restart auto negotiation */
+ writel(TBICR_MR_AN_ENABLE | TBICR_MR_RESTART_AN,
+ dev->base + TBICR);
+ writel(TBICR_MR_AN_ENABLE, dev->base + TBICR);
+ dev->linkstate = LINK_AUTONEGOTIATE;
+
+ printk(KERN_INFO "%s: autoneg enabled via ethtool\n",
+ ndev->name);
+ } else {
+ /* disable auto negotiation */
+ writel(0x00000000, dev->base + TBICR);
+ }
+
+ printk(KERN_INFO "%s: autoneg %s via ethtool\n", ndev->name,
+ cmd->autoneg ? "ENABLED" : "DISABLED");
+ }
+
+ phy_intr(ndev);
+ spin_unlock(&dev->tx_lock);
+ spin_unlock_irq(&dev->misc_lock);
+
+ return 0;
+}
+/* end ethtool get/set support -df */
+
static void ns83820_get_drvinfo(struct net_device *ndev, struct ethtool_drvinfo *info)
{
struct ns83820 *dev = PRIV(ndev);
return cfg & CFG_LNKSTS ? 1 : 0;
}
-static struct ethtool_ops ops = {
- .get_drvinfo = ns83820_get_drvinfo,
- .get_link = ns83820_get_link
+static const struct ethtool_ops ops = {
+ .get_settings = ns83820_get_settings,
+ .set_settings = ns83820_set_settings,
+ .get_drvinfo = ns83820_get_drvinfo,
+ .get_link = ns83820_get_link
};
/* this function is called in irq context from the ISR */
}
static void ns83820_do_isr(struct net_device *ndev, u32 isr);
-static irqreturn_t ns83820_irq(int foo, void *data, struct pt_regs *regs)
+static irqreturn_t ns83820_irq(int foo, void *data)
{
struct net_device *ndev = data;
struct ns83820 *dev = PRIV(ndev);
dev->tx_idx = 0;
}
/* The may have been a race between a pci originated read
- * and the descriptor update from the cpu. Just in case,
- * kick the transmitter if the hardware thinks it is on a
+ * and the descriptor update from the cpu. Just in case,
+ * kick the transmitter if the hardware thinks it is on a
* different descriptor than we are.
*/
if (dev->tx_idx != dev->tx_free_idx)
/* The TxIdle interrupt can come in before the transmit has
* completed. Normally we reap packets off of the combination
- * of TxDesc and TxIdle and leave TxOk disabled (since it
- * occurs on every packet), but when no further irqs of this
+ * of TxDesc and TxIdle and leave TxOk disabled (since it
+ * occurs on every packet), but when no further irqs of this
* nature are expected, we must enable TxOk.
*/
if ((ISR_TXIDLE & isr) && (dev->tx_done_idx != dev->tx_free_idx)) {
static void ns83820_tx_timeout(struct net_device *ndev)
{
struct ns83820 *dev = PRIV(ndev);
- u32 tx_done_idx, *desc;
+ u32 tx_done_idx;
+ __le32 *desc;
unsigned long flags;
spin_lock_irqsave(&dev->tx_lock, flags);
else
and_mask &= ~(RFCR_AAU | RFCR_AAM);
- if (ndev->flags & IFF_ALLMULTI)
+ if (ndev->flags & IFF_ALLMULTI || ndev->mc_count)
or_mask |= RFCR_AAM;
else
and_mask &= ~RFCR_AAM;
long addr;
int err;
int using_dac = 0;
+ DECLARE_MAC_BUF(mac);
/* See if we can set the dma mask early on; failure is fatal. */
if (sizeof(dma_addr_t) == 8 &&
ndev = alloc_etherdev(sizeof(struct ns83820));
dev = PRIV(ndev);
+
err = -ENOMEM;
if (!dev)
goto out;
+ dev->ndev = ndev;
+
spin_lock_init(&dev->rx_info.lock);
spin_lock_init(&dev->tx_lock);
spin_lock_init(&dev->misc_lock);
dev->pci_dev = pci_dev;
- SET_MODULE_OWNER(ndev);
SET_NETDEV_DEV(ndev, &pci_dev->dev);
- INIT_WORK(&dev->tq_refill, queue_refill, ndev);
+ INIT_WORK(&dev->tq_refill, queue_refill);
tasklet_init(&dev->rx_tasklet, rx_action, (unsigned long)ndev);
err = pci_enable_device(pci_dev);
/* When compiled with 64 bit addressing, we must always enable
* the 64 bit descriptor format.
*/
- if (sizeof(dma_addr_t) == 8)
+ if (sizeof(dma_addr_t) == 8)
dev->CFG_cache |= CFG_M64ADDR;
if (using_dac)
dev->CFG_cache |= CFG_T64ADDR;
writel(dev->CFG_cache, dev->base + CFG);
}
-#if 0 /* Huh? This sets the PCI latency register. Should be done via
+#if 0 /* Huh? This sets the PCI latency register. Should be done via
* the PCI layer. FIXME.
*/
if (readl(dev->base + SRR))
* can be transmitted is 8192 - FLTH - burst size.
* If only the transmit fifo was larger...
*/
- /* Ramit : 1024 DMA is not a good idea, it ends up banging
+ /* Ramit : 1024 DMA is not a good idea, it ends up banging
* some DELL and COMPAQ SMP systems */
writel(TXCFG_CSI | TXCFG_HBI | TXCFG_ATP | TXCFG_MXDMA512
| ((1600 / 32) * 0x100),
/* Set Rx to full duplex, don't accept runt, errored, long or length
* range errored packets. Use 512 byte DMA.
*/
- /* Ramit : 1024 DMA is not a good idea, it ends up banging
- * some DELL and COMPAQ SMP systems
+ /* Ramit : 1024 DMA is not a good idea, it ends up banging
+ * some DELL and COMPAQ SMP systems
* Turn on ALP, only we are accpeting Jumbo Packets */
writel(RXCFG_AEP | RXCFG_ARP | RXCFG_AIRL | RXCFG_RX_FD
| RXCFG_STRIPCRC
* also turn on tag stripping if hardware acceleration is enabled
*/
#ifdef NS83820_VLAN_ACCEL_SUPPORT
-#define VRCR_INIT_VALUE (VRCR_IPEN|VRCR_VTDEN|VRCR_VTREN)
+#define VRCR_INIT_VALUE (VRCR_IPEN|VRCR_VTDEN|VRCR_VTREN)
#else
#define VRCR_INIT_VALUE (VRCR_IPEN|VRCR_VTDEN)
#endif
/* We also support hardware vlan acceleration */
ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
ndev->vlan_rx_register = ns83820_vlan_rx_register;
- ndev->vlan_rx_kill_vid = ns83820_vlan_rx_kill_vid;
#endif
if (using_dac) {
ndev->features |= NETIF_F_HIGHDMA;
}
- printk(KERN_INFO "%s: ns83820 v" VERSION ": DP83820 v%u.%u: %02x:%02x:%02x:%02x:%02x:%02x io=0x%08lx irq=%d f=%s\n",
+ printk(KERN_INFO "%s: ns83820 v" VERSION ": DP83820 v%u.%u: %s io=0x%08lx irq=%d f=%s\n",
ndev->name,
(unsigned)readl(dev->base + SRR) >> 8,
(unsigned)readl(dev->base + SRR) & 0xff,
- ndev->dev_addr[0], ndev->dev_addr[1],
- ndev->dev_addr[2], ndev->dev_addr[3],
- ndev->dev_addr[4], ndev->dev_addr[5],
+ print_mac(mac, ndev->dev_addr),
addr, pci_dev->irq,
(ndev->features & NETIF_F_HIGHDMA) ? "h,sg" : "sg"
);
static int __init ns83820_init(void)
{
printk(KERN_INFO "ns83820.c: National Semiconductor DP83820 10/100/1000 driver.\n");
- return pci_module_init(&driver);
+ return pci_register_driver(&driver);
}
static void __exit ns83820_exit(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff