ioc3-eth.c (6469933605a3ecdfa66b98160cde98ecd256cb3f) ioc3-eth.c (ce7240e445303de3ca66e6d08f17a2ec278a5bf6)
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Driver for SGI's IOC3 based Ethernet cards as found in the PCI card.
7 *
8 * Copyright (C) 1999, 2000, 01, 03, 06 Ralf Baechle

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578 struct ioc3_private *ip = netdev_priv(dev);
579 struct sk_buff *skb, *new_skb;
580 struct ioc3 *ioc3 = ip->regs;
581 int rx_entry, n_entry, len;
582 struct ioc3_erxbuf *rxb;
583 unsigned long *rxr;
584 u32 w0, err;
585
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Driver for SGI's IOC3 based Ethernet cards as found in the PCI card.
7 *
8 * Copyright (C) 1999, 2000, 01, 03, 06 Ralf Baechle

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578 struct ioc3_private *ip = netdev_priv(dev);
579 struct sk_buff *skb, *new_skb;
580 struct ioc3 *ioc3 = ip->regs;
581 int rx_entry, n_entry, len;
582 struct ioc3_erxbuf *rxb;
583 unsigned long *rxr;
584 u32 w0, err;
585
586 rxr = ip->rxr; /* Ring base */
586 rxr = (unsigned long *) ip->rxr; /* Ring base */
587 rx_entry = ip->rx_ci; /* RX consume index */
588 n_entry = ip->rx_pi;
589
590 skb = ip->rx_skbs[rx_entry];
591 rxb = (struct ioc3_erxbuf *) (skb->data - RX_OFFSET);
592 w0 = be32_to_cpu(rxb->w0);
593
594 while (w0 & ERXBUF_V) {

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898 struct ioc3_private *ip = netdev_priv(dev);
899 struct ioc3_erxbuf *rxb;
900 unsigned long *rxr;
901 int i;
902
903 if (ip->rxr == NULL) {
904 /* Allocate and initialize rx ring. 4kb = 512 entries */
905 ip->rxr = (unsigned long *) get_zeroed_page(GFP_ATOMIC);
587 rx_entry = ip->rx_ci; /* RX consume index */
588 n_entry = ip->rx_pi;
589
590 skb = ip->rx_skbs[rx_entry];
591 rxb = (struct ioc3_erxbuf *) (skb->data - RX_OFFSET);
592 w0 = be32_to_cpu(rxb->w0);
593
594 while (w0 & ERXBUF_V) {

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898 struct ioc3_private *ip = netdev_priv(dev);
899 struct ioc3_erxbuf *rxb;
900 unsigned long *rxr;
901 int i;
902
903 if (ip->rxr == NULL) {
904 /* Allocate and initialize rx ring. 4kb = 512 entries */
905 ip->rxr = (unsigned long *) get_zeroed_page(GFP_ATOMIC);
906 rxr = ip->rxr;
906 rxr = (unsigned long *) ip->rxr;
907 if (!rxr)
908 printk("ioc3_alloc_rings(): get_zeroed_page() failed!\n");
909
910 /* Now the rx buffers. The RX ring may be larger but
911 we only allocate 16 buffers for now. Need to tune
912 this for performance and memory later. */
913 for (i = 0; i < RX_BUFFS; i++) {
914 struct sk_buff *skb;

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1142 *
1143 * Can't use UPF_IOREMAP as the whole of IOC3 resources have already been
1144 * registered.
1145 */
1146static void __devinit ioc3_8250_register(struct ioc3_uartregs __iomem *uart)
1147{
1148#define COSMISC_CONSTANT 6
1149
907 if (!rxr)
908 printk("ioc3_alloc_rings(): get_zeroed_page() failed!\n");
909
910 /* Now the rx buffers. The RX ring may be larger but
911 we only allocate 16 buffers for now. Need to tune
912 this for performance and memory later. */
913 for (i = 0; i < RX_BUFFS; i++) {
914 struct sk_buff *skb;

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1142 *
1143 * Can't use UPF_IOREMAP as the whole of IOC3 resources have already been
1144 * registered.
1145 */
1146static void __devinit ioc3_8250_register(struct ioc3_uartregs __iomem *uart)
1147{
1148#define COSMISC_CONSTANT 6
1149
1150 struct uart_port port = {
1151 .irq = 0,
1152 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
1153 .iotype = UPIO_MEM,
1154 .regshift = 0,
1155 .uartclk = (22000000 << 1) / COSMISC_CONSTANT,
1150 struct uart_8250_port port = {
1151 .port = {
1152 .irq = 0,
1153 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
1154 .iotype = UPIO_MEM,
1155 .regshift = 0,
1156 .uartclk = (22000000 << 1) / COSMISC_CONSTANT,
1156
1157
1157 .membase = (unsigned char __iomem *) uart,
1158 .mapbase = (unsigned long) uart,
1158 .membase = (unsigned char __iomem *) uart,
1159 .mapbase = (unsigned long) uart,
1160 }
1159 };
1160 unsigned char lcr;
1161
1162 lcr = uart->iu_lcr;
1163 uart->iu_lcr = lcr | UART_LCR_DLAB;
1164 uart->iu_scr = COSMISC_CONSTANT,
1165 uart->iu_lcr = lcr;
1166 uart->iu_lcr;
1161 };
1162 unsigned char lcr;
1163
1164 lcr = uart->iu_lcr;
1165 uart->iu_lcr = lcr | UART_LCR_DLAB;
1166 uart->iu_scr = COSMISC_CONSTANT,
1167 uart->iu_lcr = lcr;
1168 uart->iu_lcr;
1167 serial8250_register_port(&port);
1169 serial8250_register_8250_port(&port);
1168}
1169
1170static void __devinit ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3)
1171{
1172 /*
1173 * We need to recognice and treat the fourth MENET serial as it
1174 * does not have an SuperIO chip attached to it, therefore attempting
1175 * to access it will result in bus errors. We call something an

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1171
1172static void __devinit ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3)
1173{
1174 /*
1175 * We need to recognice and treat the fourth MENET serial as it
1176 * does not have an SuperIO chip attached to it, therefore attempting
1177 * to access it will result in bus errors. We call something an

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