diff options
Diffstat (limited to 'drivers/net/pcnet32.c')
-rw-r--r-- | drivers/net/pcnet32.c | 323 |
1 files changed, 259 insertions, 64 deletions
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index 113b6809921..be319229f54 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -22,8 +22,8 @@ *************************************************************************/ #define DRV_NAME "pcnet32" -#define DRV_VERSION "1.30j" -#define DRV_RELDATE "29.04.2005" +#define DRV_VERSION "1.31c" +#define DRV_RELDATE "01.Nov.2005" #define PFX DRV_NAME ": " static const char *version = @@ -257,6 +257,14 @@ static int homepna[MAX_UNITS]; * v1.30h 24 Jun 2004 Don Fry correctly select auto, speed, duplex in bcr32. * v1.30i 28 Jun 2004 Don Fry change to use module_param. * v1.30j 29 Apr 2005 Don Fry fix skb/map leak with loopback test. + * v1.31 02 Sep 2005 Hubert WS Lin <wslin@tw.ibm.c0m> added set_ringparam(). + * v1.31a 12 Sep 2005 Hubert WS Lin <wslin@tw.ibm.c0m> set min ring size to 4 + * to allow loopback test to work unchanged. + * v1.31b 06 Oct 2005 Don Fry changed alloc_ring to show name of device + * if allocation fails + * v1.31c 01 Nov 2005 Don Fry Allied Telesyn 2700/2701 FX are 100Mbit only. + * Force 100Mbit FD if Auto (ASEL) is selected. + * See Bugzilla 2669 and 4551. */ @@ -266,17 +274,17 @@ static int homepna[MAX_UNITS]; * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4). */ #ifndef PCNET32_LOG_TX_BUFFERS -#define PCNET32_LOG_TX_BUFFERS 4 -#define PCNET32_LOG_RX_BUFFERS 5 +#define PCNET32_LOG_TX_BUFFERS 4 +#define PCNET32_LOG_RX_BUFFERS 5 +#define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */ +#define PCNET32_LOG_MAX_RX_BUFFERS 9 #endif #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS)) -#define TX_RING_MOD_MASK (TX_RING_SIZE - 1) -#define TX_RING_LEN_BITS ((PCNET32_LOG_TX_BUFFERS) << 12) +#define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS)) #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS)) -#define RX_RING_MOD_MASK (RX_RING_SIZE - 1) -#define RX_RING_LEN_BITS ((PCNET32_LOG_RX_BUFFERS) << 4) +#define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS)) #define PKT_BUF_SZ 1544 @@ -334,14 +342,14 @@ struct pcnet32_access { }; /* - * The first three fields of pcnet32_private are read by the ethernet device - * so we allocate the structure should be allocated by pci_alloc_consistent(). + * The first field of pcnet32_private is read by the ethernet device + * so the structure should be allocated using pci_alloc_consistent(). */ struct pcnet32_private { - /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */ - struct pcnet32_rx_head rx_ring[RX_RING_SIZE]; - struct pcnet32_tx_head tx_ring[TX_RING_SIZE]; struct pcnet32_init_block init_block; + /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */ + struct pcnet32_rx_head *rx_ring; + struct pcnet32_tx_head *tx_ring; dma_addr_t dma_addr; /* DMA address of beginning of this object, returned by pci_alloc_consistent */ @@ -349,13 +357,21 @@ struct pcnet32_private { structure */ const char *name; /* The saved address of a sent-in-place packet/buffer, for skfree(). */ - struct sk_buff *tx_skbuff[TX_RING_SIZE]; - struct sk_buff *rx_skbuff[RX_RING_SIZE]; - dma_addr_t tx_dma_addr[TX_RING_SIZE]; - dma_addr_t rx_dma_addr[RX_RING_SIZE]; + struct sk_buff **tx_skbuff; + struct sk_buff **rx_skbuff; + dma_addr_t *tx_dma_addr; + dma_addr_t *rx_dma_addr; struct pcnet32_access a; spinlock_t lock; /* Guard lock */ unsigned int cur_rx, cur_tx; /* The next free ring entry */ + unsigned int rx_ring_size; /* current rx ring size */ + unsigned int tx_ring_size; /* current tx ring size */ + unsigned int rx_mod_mask; /* rx ring modular mask */ + unsigned int tx_mod_mask; /* tx ring modular mask */ + unsigned short rx_len_bits; + unsigned short tx_len_bits; + dma_addr_t rx_ring_dma_addr; + dma_addr_t tx_ring_dma_addr; unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */ struct net_device_stats stats; char tx_full; @@ -397,6 +413,9 @@ static int pcnet32_get_regs_len(struct net_device *dev); static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *ptr); static void pcnet32_purge_tx_ring(struct net_device *dev); +static int pcnet32_alloc_ring(struct net_device *dev, char *name); +static void pcnet32_free_ring(struct net_device *dev); + enum pci_flags_bit { PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4, @@ -613,10 +632,64 @@ static void pcnet32_get_ringparam(struct net_device *dev, struct ethtool_ringpar { struct pcnet32_private *lp = dev->priv; - ering->tx_max_pending = TX_RING_SIZE - 1; - ering->tx_pending = lp->cur_tx - lp->dirty_tx; - ering->rx_max_pending = RX_RING_SIZE - 1; - ering->rx_pending = lp->cur_rx & RX_RING_MOD_MASK; + ering->tx_max_pending = TX_MAX_RING_SIZE - 1; + ering->tx_pending = lp->tx_ring_size - 1; + ering->rx_max_pending = RX_MAX_RING_SIZE - 1; + ering->rx_pending = lp->rx_ring_size - 1; +} + +static int pcnet32_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering) +{ + struct pcnet32_private *lp = dev->priv; + unsigned long flags; + int i; + + if (ering->rx_mini_pending || ering->rx_jumbo_pending) + return -EINVAL; + + if (netif_running(dev)) + pcnet32_close(dev); + + spin_lock_irqsave(&lp->lock, flags); + pcnet32_free_ring(dev); + lp->tx_ring_size = min(ering->tx_pending, (unsigned int) TX_MAX_RING_SIZE); + lp->rx_ring_size = min(ering->rx_pending, (unsigned int) RX_MAX_RING_SIZE); + + /* set the minimum ring size to 4, to allow the loopback test to work + * unchanged. + */ + for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) { + if (lp->tx_ring_size <= (1 << i)) + break; + } + lp->tx_ring_size = (1 << i); + lp->tx_mod_mask = lp->tx_ring_size - 1; + lp->tx_len_bits = (i << 12); + + for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) { + if (lp->rx_ring_size <= (1 << i)) + break; + } + lp->rx_ring_size = (1 << i); + lp->rx_mod_mask = lp->rx_ring_size - 1; + lp->rx_len_bits = (i << 4); + + if (pcnet32_alloc_ring(dev, dev->name)) { + pcnet32_free_ring(dev); + spin_unlock_irqrestore(&lp->lock, flags); + return -ENOMEM; + } + + spin_unlock_irqrestore(&lp->lock, flags); + + if (pcnet32_debug & NETIF_MSG_DRV) + printk(KERN_INFO PFX "%s: Ring Param Settings: RX: %d, TX: %d\n", + dev->name, lp->rx_ring_size, lp->tx_ring_size); + + if (netif_running(dev)) + pcnet32_open(dev); + + return 0; } static void pcnet32_get_strings(struct net_device *dev, u32 stringset, u8 *data) @@ -915,7 +988,11 @@ static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, *buff++ = a->read_csr(ioaddr, 114); /* read bus configuration registers */ - for (i=0; i<36; i++) { + for (i=0; i<30; i++) { + *buff++ = a->read_bcr(ioaddr, i); + } + *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ + for (i=31; i<36; i++) { *buff++ = a->read_bcr(ioaddr, i); } @@ -948,6 +1025,7 @@ static struct ethtool_ops pcnet32_ethtool_ops = { .nway_reset = pcnet32_nway_reset, .get_link = pcnet32_get_link, .get_ringparam = pcnet32_get_ringparam, + .set_ringparam = pcnet32_set_ringparam, .get_tx_csum = ethtool_op_get_tx_csum, .get_sg = ethtool_op_get_sg, .get_tso = ethtool_op_get_tso, @@ -957,6 +1035,7 @@ static struct ethtool_ops pcnet32_ethtool_ops = { .phys_id = pcnet32_phys_id, .get_regs_len = pcnet32_get_regs_len, .get_regs = pcnet32_get_regs, + .get_perm_addr = ethtool_op_get_perm_addr, }; /* only probes for non-PCI devices, the rest are handled by @@ -1185,9 +1264,10 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) memcpy(dev->dev_addr, promaddr, 6); } } + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */ - if (!is_valid_ether_addr(dev->dev_addr)) + if (!is_valid_ether_addr(dev->perm_addr)) memset(dev->dev_addr, 0, sizeof(dev->dev_addr)); if (pcnet32_debug & NETIF_MSG_PROBE) { @@ -1239,6 +1319,12 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) dev->priv = lp; lp->name = chipname; lp->shared_irq = shared; + lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */ + lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */ + lp->tx_mod_mask = lp->tx_ring_size - 1; + lp->rx_mod_mask = lp->rx_ring_size - 1; + lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12); + lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4); lp->mii_if.full_duplex = fdx; lp->mii_if.phy_id_mask = 0x1f; lp->mii_if.reg_num_mask = 0x1f; @@ -1265,21 +1351,24 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) } lp->a = *a; + /* prior to register_netdev, dev->name is not yet correct */ + if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { + ret = -ENOMEM; + goto err_free_ring; + } /* detect special T1/E1 WAN card by checking for MAC address */ if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 && dev->dev_addr[2] == 0x75) lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI; lp->init_block.mode = le16_to_cpu(0x0003); /* Disable Rx and Tx. */ - lp->init_block.tlen_rlen = le16_to_cpu(TX_RING_LEN_BITS | RX_RING_LEN_BITS); + lp->init_block.tlen_rlen = le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits); for (i = 0; i < 6; i++) lp->init_block.phys_addr[i] = dev->dev_addr[i]; lp->init_block.filter[0] = 0x00000000; lp->init_block.filter[1] = 0x00000000; - lp->init_block.rx_ring = (u32)le32_to_cpu(lp->dma_addr + - offsetof(struct pcnet32_private, rx_ring)); - lp->init_block.tx_ring = (u32)le32_to_cpu(lp->dma_addr + - offsetof(struct pcnet32_private, tx_ring)); + lp->init_block.rx_ring = (u32)le32_to_cpu(lp->rx_ring_dma_addr); + lp->init_block.tx_ring = (u32)le32_to_cpu(lp->tx_ring_dma_addr); /* switch pcnet32 to 32bit mode */ a->write_bcr(ioaddr, 20, 2); @@ -1310,7 +1399,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) if (pcnet32_debug & NETIF_MSG_PROBE) printk(", failed to detect IRQ line.\n"); ret = -ENODEV; - goto err_free_consistent; + goto err_free_ring; } if (pcnet32_debug & NETIF_MSG_PROBE) printk(", probed IRQ %d.\n", dev->irq); @@ -1341,7 +1430,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) /* Fill in the generic fields of the device structure. */ if (register_netdev(dev)) - goto err_free_consistent; + goto err_free_ring; if (pdev) { pci_set_drvdata(pdev, dev); @@ -1359,6 +1448,8 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) return 0; +err_free_ring: + pcnet32_free_ring(dev); err_free_consistent: pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); err_free_netdev: @@ -1369,6 +1460,101 @@ err_release_region: } +/* if any allocation fails, caller must also call pcnet32_free_ring */ +static int pcnet32_alloc_ring(struct net_device *dev, char *name) +{ + struct pcnet32_private *lp = dev->priv; + + lp->tx_ring = pci_alloc_consistent(lp->pci_dev, + sizeof(struct pcnet32_tx_head) * lp->tx_ring_size, + &lp->tx_ring_dma_addr); + if (lp->tx_ring == NULL) { + if (pcnet32_debug & NETIF_MSG_DRV) + printk("\n" KERN_ERR PFX "%s: Consistent memory allocation failed.\n", + name); + return -ENOMEM; + } + + lp->rx_ring = pci_alloc_consistent(lp->pci_dev, + sizeof(struct pcnet32_rx_head) * lp->rx_ring_size, + &lp->rx_ring_dma_addr); + if (lp->rx_ring == NULL) { + if (pcnet32_debug & NETIF_MSG_DRV) + printk("\n" KERN_ERR PFX "%s: Consistent memory allocation failed.\n", + name); + return -ENOMEM; + } + + lp->tx_dma_addr = kmalloc(sizeof(dma_addr_t) * lp->tx_ring_size, + GFP_ATOMIC); + if (!lp->tx_dma_addr) { + if (pcnet32_debug & NETIF_MSG_DRV) + printk("\n" KERN_ERR PFX "%s: Memory allocation failed.\n", name); + return -ENOMEM; + } + memset(lp->tx_dma_addr, 0, sizeof(dma_addr_t) * lp->tx_ring_size); + + lp->rx_dma_addr = kmalloc(sizeof(dma_addr_t) * lp->rx_ring_size, + GFP_ATOMIC); + if (!lp->rx_dma_addr) { + if (pcnet32_debug & NETIF_MSG_DRV) + printk("\n" KERN_ERR PFX "%s: Memory allocation failed.\n", name); + return -ENOMEM; + } + memset(lp->rx_dma_addr, 0, sizeof(dma_addr_t) * lp->rx_ring_size); + + lp->tx_skbuff = kmalloc(sizeof(struct sk_buff *) * lp->tx_ring_size, + GFP_ATOMIC); + if (!lp->tx_skbuff) { + if (pcnet32_debug & NETIF_MSG_DRV) + printk("\n" KERN_ERR PFX "%s: Memory allocation failed.\n", name); + return -ENOMEM; + } + memset(lp->tx_skbuff, 0, sizeof(struct sk_buff *) * lp->tx_ring_size); + + lp->rx_skbuff = kmalloc(sizeof(struct sk_buff *) * lp->rx_ring_size, + GFP_ATOMIC); + if (!lp->rx_skbuff) { + if (pcnet32_debug & NETIF_MSG_DRV) + printk("\n" KERN_ERR PFX "%s: Memory allocation failed.\n", name); + return -ENOMEM; + } + memset(lp->rx_skbuff, 0, sizeof(struct sk_buff *) * lp->rx_ring_size); + + return 0; +} + + +static void pcnet32_free_ring(struct net_device *dev) +{ + struct pcnet32_private *lp = dev->priv; + + kfree(lp->tx_skbuff); + lp->tx_skbuff = NULL; + + kfree(lp->rx_skbuff); + lp->rx_skbuff = NULL; + + kfree(lp->tx_dma_addr); + lp->tx_dma_addr = NULL; + + kfree(lp->rx_dma_addr); + lp->rx_dma_addr = NULL; + + if (lp->tx_ring) { + pci_free_consistent(lp->pci_dev, sizeof(struct pcnet32_tx_head) * lp->tx_ring_size, + lp->tx_ring, lp->tx_ring_dma_addr); + lp->tx_ring = NULL; + } + + if (lp->rx_ring) { + pci_free_consistent(lp->pci_dev, sizeof(struct pcnet32_rx_head) * lp->rx_ring_size, + lp->rx_ring, lp->rx_ring_dma_addr); + lp->rx_ring = NULL; + } +} + + static int pcnet32_open(struct net_device *dev) { @@ -1400,8 +1586,8 @@ pcnet32_open(struct net_device *dev) if (netif_msg_ifup(lp)) printk(KERN_DEBUG "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n", dev->name, dev->irq, - (u32) (lp->dma_addr + offsetof(struct pcnet32_private, tx_ring)), - (u32) (lp->dma_addr + offsetof(struct pcnet32_private, rx_ring)), + (u32) (lp->tx_ring_dma_addr), + (u32) (lp->rx_ring_dma_addr), (u32) (lp->dma_addr + offsetof(struct pcnet32_private, init_block))); /* set/reset autoselect bit */ @@ -1433,12 +1619,18 @@ pcnet32_open(struct net_device *dev) val |= 0x10; lp->a.write_csr (ioaddr, 124, val); - /* Allied Telesyn AT 2700/2701 FX looses the link, so skip that */ + /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT && - (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || - lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { - printk(KERN_DEBUG "%s: Skipping PHY selection.\n", dev->name); - } else { + (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || + lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { + if (lp->options & PCNET32_PORT_ASEL) { + lp->options = PCNET32_PORT_FD | PCNET32_PORT_100; + if (netif_msg_link(lp)) + printk(KERN_DEBUG "%s: Setting 100Mb-Full Duplex.\n", + dev->name); + } + } + { /* * 24 Jun 2004 according AMD, in order to change the PHY, * DANAS (or DISPM for 79C976) must be set; then select the speed, @@ -1521,7 +1713,7 @@ pcnet32_open(struct net_device *dev) err_free_ring: /* free any allocated skbuffs */ - for (i = 0; i < RX_RING_SIZE; i++) { + for (i = 0; i < lp->rx_ring_size; i++) { lp->rx_ring[i].status = 0; if (lp->rx_skbuff[i]) { pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], PKT_BUF_SZ-2, @@ -1531,6 +1723,9 @@ err_free_ring: lp->rx_skbuff[i] = NULL; lp->rx_dma_addr[i] = 0; } + + pcnet32_free_ring(dev); + /* * Switch back to 16bit mode to avoid problems with dumb * DOS packet driver after a warm reboot @@ -1562,7 +1757,7 @@ pcnet32_purge_tx_ring(struct net_device *dev) struct pcnet32_private *lp = dev->priv; int i; - for (i = 0; i < TX_RING_SIZE; i++) { + for (i = 0; i < lp->tx_ring_size; i++) { lp->tx_ring[i].status = 0; /* CPU owns buffer */ wmb(); /* Make sure adapter sees owner change */ if (lp->tx_skbuff[i]) { @@ -1587,7 +1782,7 @@ pcnet32_init_ring(struct net_device *dev) lp->cur_rx = lp->cur_tx = 0; lp->dirty_rx = lp->dirty_tx = 0; - for (i = 0; i < RX_RING_SIZE; i++) { + for (i = 0; i < lp->rx_ring_size; i++) { struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; if (rx_skbuff == NULL) { if (!(rx_skbuff = lp->rx_skbuff[i] = dev_alloc_skb (PKT_BUF_SZ))) { @@ -1611,20 +1806,18 @@ pcnet32_init_ring(struct net_device *dev) } /* The Tx buffer address is filled in as needed, but we do need to clear * the upper ownership bit. */ - for (i = 0; i < TX_RING_SIZE; i++) { + for (i = 0; i < lp->tx_ring_size; i++) { lp->tx_ring[i].status = 0; /* CPU owns buffer */ wmb(); /* Make sure adapter sees owner change */ lp->tx_ring[i].base = 0; lp->tx_dma_addr[i] = 0; } - lp->init_block.tlen_rlen = le16_to_cpu(TX_RING_LEN_BITS | RX_RING_LEN_BITS); + lp->init_block.tlen_rlen = le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits); for (i = 0; i < 6; i++) lp->init_block.phys_addr[i] = dev->dev_addr[i]; - lp->init_block.rx_ring = (u32)le32_to_cpu(lp->dma_addr + - offsetof(struct pcnet32_private, rx_ring)); - lp->init_block.tx_ring = (u32)le32_to_cpu(lp->dma_addr + - offsetof(struct pcnet32_private, tx_ring)); + lp->init_block.rx_ring = (u32)le32_to_cpu(lp->rx_ring_dma_addr); + lp->init_block.tx_ring = (u32)le32_to_cpu(lp->tx_ring_dma_addr); wmb(); /* Make sure all changes are visible */ return 0; } @@ -1682,13 +1875,13 @@ pcnet32_tx_timeout (struct net_device *dev) printk(KERN_DEBUG " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.", lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "", lp->cur_rx); - for (i = 0 ; i < RX_RING_SIZE; i++) + for (i = 0 ; i < lp->rx_ring_size; i++) printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", le32_to_cpu(lp->rx_ring[i].base), (-le16_to_cpu(lp->rx_ring[i].buf_length)) & 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length), le16_to_cpu(lp->rx_ring[i].status)); - for (i = 0 ; i < TX_RING_SIZE; i++) + for (i = 0 ; i < lp->tx_ring_size; i++) printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", le32_to_cpu(lp->tx_ring[i].base), (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff, @@ -1729,7 +1922,7 @@ pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Fill in a Tx ring entry */ /* Mask to ring buffer boundary. */ - entry = lp->cur_tx & TX_RING_MOD_MASK; + entry = lp->cur_tx & lp->tx_mod_mask; /* Caution: the write order is important here, set the status * with the "ownership" bits last. */ @@ -1753,7 +1946,7 @@ pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; - if (lp->tx_ring[(entry+1) & TX_RING_MOD_MASK].base != 0) { + if (lp->tx_ring[(entry+1) & lp->tx_mod_mask].base != 0) { lp->tx_full = 1; netif_stop_queue(dev); } @@ -1806,7 +1999,7 @@ pcnet32_interrupt(int irq, void *dev_id, struct pt_regs * regs) int delta; while (dirty_tx != lp->cur_tx) { - int entry = dirty_tx & TX_RING_MOD_MASK; + int entry = dirty_tx & lp->tx_mod_mask; int status = (short)le16_to_cpu(lp->tx_ring[entry].status); if (status < 0) @@ -1864,18 +2057,18 @@ pcnet32_interrupt(int irq, void *dev_id, struct pt_regs * regs) dirty_tx++; } - delta = (lp->cur_tx - dirty_tx) & (TX_RING_MOD_MASK + TX_RING_SIZE); - if (delta > TX_RING_SIZE) { + delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size); + if (delta > lp->tx_ring_size) { if (netif_msg_drv(lp)) printk(KERN_ERR "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n", dev->name, dirty_tx, lp->cur_tx, lp->tx_full); - dirty_tx += TX_RING_SIZE; - delta -= TX_RING_SIZE; + dirty_tx += lp->tx_ring_size; + delta -= lp->tx_ring_size; } if (lp->tx_full && netif_queue_stopped(dev) && - delta < TX_RING_SIZE - 2) { + delta < lp->tx_ring_size - 2) { /* The ring is no longer full, clear tbusy. */ lp->tx_full = 0; netif_wake_queue (dev); @@ -1932,8 +2125,8 @@ static int pcnet32_rx(struct net_device *dev) { struct pcnet32_private *lp = dev->priv; - int entry = lp->cur_rx & RX_RING_MOD_MASK; - int boguscnt = RX_RING_SIZE / 2; + int entry = lp->cur_rx & lp->rx_mod_mask; + int boguscnt = lp->rx_ring_size / 2; /* If we own the next entry, it's a new packet. Send it up. */ while ((short)le16_to_cpu(lp->rx_ring[entry].status) >= 0) { @@ -1998,12 +2191,12 @@ pcnet32_rx(struct net_device *dev) if (netif_msg_drv(lp)) printk(KERN_ERR "%s: Memory squeeze, deferring packet.\n", dev->name); - for (i = 0; i < RX_RING_SIZE; i++) + for (i = 0; i < lp->rx_ring_size; i++) if ((short)le16_to_cpu(lp->rx_ring[(entry+i) - & RX_RING_MOD_MASK].status) < 0) + & lp->rx_mod_mask].status) < 0) break; - if (i > RX_RING_SIZE -2) { + if (i > lp->rx_ring_size -2) { lp->stats.rx_dropped++; lp->rx_ring[entry].status |= le16_to_cpu(0x8000); wmb(); /* Make sure adapter sees owner change */ @@ -2041,7 +2234,7 @@ pcnet32_rx(struct net_device *dev) lp->rx_ring[entry].buf_length = le16_to_cpu(2-PKT_BUF_SZ); wmb(); /* Make sure owner changes after all others are visible */ lp->rx_ring[entry].status |= le16_to_cpu(0x8000); - entry = (++lp->cur_rx) & RX_RING_MOD_MASK; + entry = (++lp->cur_rx) & lp->rx_mod_mask; if (--boguscnt <= 0) break; /* don't stay in loop forever */ } @@ -2084,7 +2277,7 @@ pcnet32_close(struct net_device *dev) spin_lock_irqsave(&lp->lock, flags); /* free all allocated skbuffs */ - for (i = 0; i < RX_RING_SIZE; i++) { + for (i = 0; i < lp->rx_ring_size; i++) { lp->rx_ring[i].status = 0; wmb(); /* Make sure adapter sees owner change */ if (lp->rx_skbuff[i]) { @@ -2096,7 +2289,7 @@ pcnet32_close(struct net_device *dev) lp->rx_dma_addr[i] = 0; } - for (i = 0; i < TX_RING_SIZE; i++) { + for (i = 0; i < lp->tx_ring_size; i++) { lp->tx_ring[i].status = 0; /* CPU owns buffer */ wmb(); /* Make sure adapter sees owner change */ if (lp->tx_skbuff[i]) { @@ -2265,6 +2458,7 @@ static void __devexit pcnet32_remove_one(struct pci_dev *pdev) struct pcnet32_private *lp = dev->priv; unregister_netdev(dev); + pcnet32_free_ring(dev); release_region(dev->base_addr, PCNET32_TOTAL_SIZE); pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); free_netdev(dev); @@ -2340,6 +2534,7 @@ static void __exit pcnet32_cleanup_module(void) struct pcnet32_private *lp = pcnet32_dev->priv; next_dev = lp->next; unregister_netdev(pcnet32_dev); + pcnet32_free_ring(pcnet32_dev); release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE); pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); free_netdev(pcnet32_dev); |