diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/Kconfig | 15 | ||||
| -rw-r--r-- | drivers/net/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/dgrs.c | 1593 | ||||
| -rw-r--r-- | drivers/net/dgrs.h | 38 | ||||
| -rw-r--r-- | drivers/net/dgrs_asstruct.h | 37 | ||||
| -rw-r--r-- | drivers/net/dgrs_bcomm.h | 148 | ||||
| -rw-r--r-- | drivers/net/dgrs_es4h.h | 183 | ||||
| -rw-r--r-- | drivers/net/dgrs_ether.h | 135 | ||||
| -rw-r--r-- | drivers/net/dgrs_firmware.c | 9966 | ||||
| -rw-r--r-- | drivers/net/dgrs_i82596.h | 473 | ||||
| -rw-r--r-- | drivers/net/dgrs_plx9060.h | 175 |
11 files changed, 0 insertions, 12764 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 467532c7975..764325917f6 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1459,21 +1459,6 @@ config TC35815 depends on NET_PCI && PCI && MIPS select MII -config DGRS - tristate "Digi Intl. RightSwitch SE-X support" - depends on NET_PCI && (PCI || EISA) - ---help--- - This is support for the Digi International RightSwitch series of - PCI/EISA Ethernet switch cards. These include the SE-4 and the SE-6 - models. If you have a network card of this type, say Y and read the - Ethernet-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. More specific - information is contained in <file:Documentation/networking/dgrs.txt>. - - To compile this driver as a module, choose M here and read - <file:Documentation/networking/net-modules.txt>. The module - will be called dgrs. - config EEPRO100 tristate "EtherExpressPro/100 support (eepro100, original Becker driver)" depends on NET_PCI && PCI diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 6220c50596e..eb5c655e26d 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -44,7 +44,6 @@ obj-$(CONFIG_SUNVNET) += sunvnet.o obj-$(CONFIG_MACE) += mace.o obj-$(CONFIG_BMAC) += bmac.o -obj-$(CONFIG_DGRS) += dgrs.o obj-$(CONFIG_VORTEX) += 3c59x.o obj-$(CONFIG_TYPHOON) += typhoon.o obj-$(CONFIG_NE2K_PCI) += ne2k-pci.o 8390.o diff --git a/drivers/net/dgrs.c b/drivers/net/dgrs.c deleted file mode 100644 index 054f2ba5f69..00000000000 --- a/drivers/net/dgrs.c +++ /dev/null @@ -1,1593 +0,0 @@ -/* - * Digi RightSwitch SE-X loadable device driver for Linux - * - * The RightSwitch is a 4 (EISA) or 6 (PCI) port etherswitch and - * a NIC on an internal board. - * - * Author: Rick Richardson, rick@remotepoint.com - * Derived from the SVR4.2 (UnixWare) driver for the same card. - * - * Copyright 1995-1996 Digi International Inc. - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - * For information on purchasing a RightSwitch SE-4 or SE-6 - * board, please contact Digi's sales department at 1-612-912-3444 - * or 1-800-DIGIBRD. Outside the U.S., please check our Web page - * at http://www.dgii.com for sales offices worldwide. - * - * OPERATION: - * When compiled as a loadable module, this driver can operate - * the board as either a 4/6 port switch with a 5th or 7th port - * that is a conventional NIC interface as far as the host is - * concerned, OR as 4/6 independent NICs. To select multi-NIC - * mode, add "nicmode=1" on the insmod load line for the driver. - * - * This driver uses the "dev" common ethernet device structure - * and a private "priv" (dev->priv) structure that contains - * mostly DGRS-specific information and statistics. To keep - * the code for both the switch mode and the multi-NIC mode - * as similar as possible, I have introduced the concept of - * "dev0"/"priv0" and "devN"/"privN" pointer pairs in subroutines - * where needed. The first pair of pointers points to the - * "dev" and "priv" structures of the zeroth (0th) device - * interface associated with a board. The second pair of - * pointers points to the current (Nth) device interface - * for the board: the one for which we are processing data. - * - * In switch mode, the pairs of pointers are always the same, - * that is, dev0 == devN and priv0 == privN. This is just - * like previous releases of this driver which did not support - * NIC mode. - * - * In multi-NIC mode, the pairs of pointers may be different. - * We use the devN and privN pointers to reference just the - * name, port number, and statistics for the current interface. - * We use the dev0 and priv0 pointers to access the variables - * that control access to the board, such as board address - * and simulated 82596 variables. This is because there is - * only one "fake" 82596 that serves as the interface to - * the board. We do not want to try to keep the variables - * associated with this 82596 in sync across all devices. - * - * This scheme works well. As you will see, except for - * initialization, there is very little difference between - * the two modes as far as this driver is concerned. On the - * receive side in NIC mode, the interrupt *always* comes in on - * the 0th interface (dev0/priv0). We then figure out which - * real 82596 port it came in on from looking at the "chan" - * member that the board firmware adds at the end of each - * RBD (a.k.a. TBD). We get the channel number like this: - * int chan = ((I596_RBD *) S2H(cbp->xmit.tbdp))->chan; - * - * On the transmit side in multi-NIC mode, we specify the - * output 82596 port by setting the new "dstchan" structure - * member that is at the end of the RFD, like this: - * priv0->rfdp->dstchan = privN->chan; - * - * TODO: - * - Multi-NIC mode is not yet supported when the driver is linked - * into the kernel. - * - Better handling of multicast addresses. - * - * Fixes: - * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 11/01/2001 - * - fix dgrs_found_device wrt checking kmalloc return and - * rollbacking the partial steps of the whole process when - * one of the devices can't be allocated. Fix SET_MODULE_OWNER - * on the loop to use devN instead of repeated calls to dev. - * - * davej <davej@suse.de> - 9/2/2001 - * - Enable PCI device before reading ioaddr/irq - * - */ - -#include <linux/module.h> -#include <linux/eisa.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/byteorder.h> -#include <asm/uaccess.h> - -static char version[] __initdata = - "$Id: dgrs.c,v 1.13 2000/06/06 04:07:00 rick Exp $"; - -/* - * DGRS include files - */ -typedef unsigned char uchar; -#define vol volatile - -#include "dgrs.h" -#include "dgrs_es4h.h" -#include "dgrs_plx9060.h" -#include "dgrs_i82596.h" -#include "dgrs_ether.h" -#include "dgrs_asstruct.h" -#include "dgrs_bcomm.h" - -#ifdef CONFIG_PCI -static struct pci_device_id dgrs_pci_tbl[] = { - { SE6_PCI_VENDOR_ID, SE6_PCI_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, }, - { } /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(pci, dgrs_pci_tbl); -#endif - -#ifdef CONFIG_EISA -static struct eisa_device_id dgrs_eisa_tbl[] = { - { "DBI0A01" }, - { } -}; -MODULE_DEVICE_TABLE(eisa, dgrs_eisa_tbl); -#endif - -MODULE_LICENSE("GPL"); - - -/* - * Firmware. Compiled separately for local compilation, - * but #included for Linux distribution. - */ -#ifndef NOFW - #include "dgrs_firmware.c" -#else - extern int dgrs_firmnum; - extern char dgrs_firmver[]; - extern char dgrs_firmdate[]; - extern uchar dgrs_code[]; - extern int dgrs_ncode; -#endif - -/* - * Linux out*() is backwards from all other operating systems - */ -#define OUTB(ADDR, VAL) outb(VAL, ADDR) -#define OUTW(ADDR, VAL) outw(VAL, ADDR) -#define OUTL(ADDR, VAL) outl(VAL, ADDR) - -/* - * Macros to convert switch to host and host to switch addresses - * (assumes a local variable priv points to board dependent struct) - */ -#define S2H(A) ( ((unsigned long)(A)&0x00ffffff) + priv0->vmem ) -#define S2HN(A) ( ((unsigned long)(A)&0x00ffffff) + privN->vmem ) -#define H2S(A) ( ((char *) (A) - priv0->vmem) + 0xA3000000 ) - -/* - * Convert a switch address to a "safe" address for use with the - * PLX 9060 DMA registers and the associated HW kludge that allows - * for host access of the DMA registers. - */ -#define S2DMA(A) ( (unsigned long)(A) & 0x00ffffff) - -/* - * "Space.c" variables, now settable from module interface - * Use the name below, minus the "dgrs_" prefix. See init_module(). - */ -static int dgrs_debug = 1; -static int dgrs_dma = 1; -static int dgrs_spantree = -1; -static int dgrs_hashexpire = -1; -static uchar dgrs_ipaddr[4] = { 0xff, 0xff, 0xff, 0xff}; -static uchar dgrs_iptrap[4] = { 0xff, 0xff, 0xff, 0xff}; -static __u32 dgrs_ipxnet = -1; -static int dgrs_nicmode; - -/* - * Private per-board data structure (dev->priv) - */ -typedef struct -{ - /* - * DGRS specific data - */ - char *vmem; - - struct bios_comm *bcomm; /* Firmware BIOS comm structure */ - PORT *port; /* Ptr to PORT[0] struct in VM */ - I596_SCB *scbp; /* Ptr to SCB struct in VM */ - I596_RFD *rfdp; /* Current RFD list */ - I596_RBD *rbdp; /* Current RBD list */ - - volatile int intrcnt; /* Count of interrupts */ - - /* - * SE-4 (EISA) board variables - */ - uchar is_reg; /* EISA: Value for ES4H_IS reg */ - - /* - * SE-6 (PCI) board variables - * - * The PLX "expansion rom" space is used for DMA register - * access from the host on the SE-6. These are the physical - * and virtual addresses of that space. - */ - ulong plxreg; /* Phys address of PLX chip */ - char *vplxreg; /* Virtual address of PLX chip */ - ulong plxdma; /* Phys addr of PLX "expansion rom" */ - ulong volatile *vplxdma; /* Virtual addr of "expansion rom" */ - int use_dma; /* Flag: use DMA */ - DMACHAIN *dmadesc_s; /* area for DMA chains (SW addr.) */ - DMACHAIN *dmadesc_h; /* area for DMA chains (Host Virtual) */ - - /* - * Multi-NIC mode variables - * - * All entries of the devtbl[] array are valid for the 0th - * device (i.e. eth0, but not eth1...eth5). devtbl[0] is - * valid for all devices (i.e. eth0, eth1, ..., eth5). - */ - int nports; /* Number of physical ports (4 or 6) */ - int chan; /* Channel # (1-6) for this device */ - struct net_device *devtbl[6]; /* Ptrs to N device structs */ - -} DGRS_PRIV; - - -/* - * reset or un-reset the IDT processor - */ -static void -proc_reset(struct net_device *dev0, int reset) -{ - DGRS_PRIV *priv0 = (DGRS_PRIV *) dev0->priv; - - if (priv0->plxreg) - { - ulong val; - val = inl(dev0->base_addr + PLX_MISC_CSR); - if (reset) - val |= SE6_RESET; - else - val &= ~SE6_RESET; - OUTL(dev0->base_addr + PLX_MISC_CSR, val); - } - else - { - OUTB(dev0->base_addr + ES4H_PC, reset ? ES4H_PC_RESET : 0); - } -} - -/* - * See if the board supports bus master DMA - */ -static int -check_board_dma(struct net_device *dev0) -{ - DGRS_PRIV *priv0 = (DGRS_PRIV *) dev0->priv; - ulong x; - - /* - * If Space.c says not to use DMA, or if it's not a PLX based - * PCI board, or if the expansion ROM space is not PCI - * configured, then return false. - */ - if (!dgrs_dma || !priv0->plxreg || !priv0->plxdma) - return (0); - - /* - * Set the local address remap register of the "expansion rom" - * area to 0x80000000 so that we can use it to access the DMA - * registers from the host side. - */ - OUTL(dev0->base_addr + PLX_ROM_BASE_ADDR, 0x80000000); - - /* - * Set the PCI region descriptor to: - * Space 0: - * disable read-prefetch - * enable READY - * enable BURST - * 0 internal wait states - * Expansion ROM: (used for host DMA register access) - * disable read-prefetch - * enable READY - * disable BURST - * 0 internal wait states - */ - OUTL(dev0->base_addr + PLX_BUS_REGION, 0x49430343); - - /* - * Now map the DMA registers into our virtual space - */ - priv0->vplxdma = (ulong *) ioremap (priv0->plxdma, 256); - if (!priv0->vplxdma) - { - printk("%s: can't *remap() the DMA regs\n", dev0->name); - return (0); - } - - /* - * Now test to see if we can access the DMA registers - * If we write -1 and get back 1FFF, then we accessed the - * DMA register. Otherwise, we probably have an old board - * and wrote into regular RAM. - */ - priv0->vplxdma[PLX_DMA0_MODE/4] = 0xFFFFFFFF; - x = priv0->vplxdma[PLX_DMA0_MODE/4]; - if (x != 0x00001FFF) { - iounmap((void *)priv0->vplxdma); - return (0); - } - - return (1); -} - -/* - * Initiate DMA using PLX part on PCI board. Spin the - * processor until completed. All addresses are physical! - * - * If pciaddr is NULL, then it's a chaining DMA, and lcladdr is - * the address of the first DMA descriptor in the chain. - * - * If pciaddr is not NULL, then it's a single DMA. - * - * In either case, "lcladdr" must have been fixed up to make - * sure the MSB isn't set using the S2DMA macro before passing - * the address to this routine. - */ -static int -do_plx_dma( - struct net_device *dev, - ulong pciaddr, - ulong lcladdr, - int len, - int to_host -) -{ - int i; - ulong csr = 0; - DGRS_PRIV *priv = (DGRS_PRIV *) dev->priv; - - if (pciaddr) - { - /* - * Do a single, non-chain DMA - */ - priv->vplxdma[PLX_DMA0_PCI_ADDR/4] = pciaddr; - priv->vplxdma[PLX_DMA0_LCL_ADDR/4] = lcladdr; - priv->vplxdma[PLX_DMA0_SIZE/4] = len; - priv->vplxdma[PLX_DMA0_DESCRIPTOR/4] = to_host - ? PLX_DMA_DESC_TO_HOST - : PLX_DMA_DESC_TO_BOARD; - priv->vplxdma[PLX_DMA0_MODE/4] = - PLX_DMA_MODE_WIDTH32 - | PLX_DMA_MODE_WAITSTATES(0) - | PLX_DMA_MODE_READY - | PLX_DMA_MODE_NOBTERM - | PLX_DMA_MODE_BURST - | PLX_DMA_MODE_NOCHAIN; - } - else - { - /* - * Do a chaining DMA - */ - priv->vplxdma[PLX_DMA0_MODE/4] = - PLX_DMA_MODE_WIDTH32 - | PLX_DMA_MODE_WAITSTATES(0) - | PLX_DMA_MODE_READY - | PLX_DMA_MODE_NOBTERM - | PLX_DMA_MODE_BURST - | PLX_DMA_MODE_CHAIN; - priv->vplxdma[PLX_DMA0_DESCRIPTOR/4] = lcladdr; - } - - priv->vplxdma[PLX_DMA_CSR/4] = - PLX_DMA_CSR_0_ENABLE | PLX_DMA_CSR_0_START; - - /* - * Wait for DMA to complete - */ - for (i = 0; i < 1000000; ++i) - { - /* - * Spin the host CPU for 1 usec, so we don't thrash - * the PCI bus while the PLX 9060 is doing DMA. - */ - udelay(1); - - csr = (volatile unsigned long) priv->vplxdma[PLX_DMA_CSR/4]; - - if (csr & PLX_DMA_CSR_0_DONE) - break; - } - - if ( ! (csr & PLX_DMA_CSR_0_DONE) ) - { - printk("%s: DMA done never occurred. DMA disabled.\n", - dev->name); - priv->use_dma = 0; - return 1; - } - return 0; -} - -/* - * dgrs_rcv_frame() - * - * Process a received frame. This is called from the interrupt - * routine, and works for both switch mode and multi-NIC mode. - * - * Note that when in multi-NIC mode, we want to always access the - * hardware using the dev and priv structures of the first port, - * so that we are using only one set of variables to maintain - * the board interface status, but we want to use the Nth port - * dev and priv structures to maintain statistics and to pass - * the packet up. - * - * Only the first device structure is attached to the interrupt. - * We use the special "chan" variable at the end of the first RBD - * to select the Nth device in multi-NIC mode. - * - * We currently do chained DMA on a per-packet basis when the - * packet is "long", and we spin the CPU a short time polling - * for DMA completion. This avoids a second interrupt overhead, - * and gives the best performance for light traffic to the host. - * - * However, a better scheme that could be implemented would be - * to see how many packets are outstanding for the host, and if - * the number is "large", create a long chain to DMA several - * packets into the host in one go. In this case, we would set - * up some state variables to let the host CPU continue doing - * other things until a DMA completion interrupt comes along. - */ -static void -dgrs_rcv_frame( - struct net_device *dev0, - DGRS_PRIV *priv0, - I596_CB *cbp -) -{ - int len; - I596_TBD *tbdp; - struct sk_buff *skb; - uchar *putp; - uchar *p; - struct net_device *devN; - DGRS_PRIV *privN; - - /* - * Determine Nth priv and dev structure pointers - */ - if (dgrs_nicmode) - { /* Multi-NIC mode */ - int chan = ((I596_RBD *) S2H(cbp->xmit.tbdp))->chan; - - devN = priv0->devtbl[chan-1]; - /* - * If devN is null, we got an interrupt before the I/F - * has been initialized. Pitch the packet. - */ - if (devN == NULL) - goto out; - privN = (DGRS_PRIV *) devN->priv; - } - else - { /* Switch mode */ - devN = dev0; - privN = priv0; - } - - if (0) printk("%s: rcv len=%ld\n", devN->name, cbp->xmit.count); - - /* - * Allocate a message block big enough to hold the whole frame - */ - len = cbp->xmit.count; - if ((skb = dev_alloc_skb(len+5)) == NULL) - { - printk("%s: dev_alloc_skb failed for rcv buffer\n", devN->name); - ++dev0->stats.rx_dropped; - /* discarding the frame */ - goto out; - } - skb_reserve(skb, 2); /* Align IP header */ - -again: - putp = p = skb_put(skb, len); - - /* - * There are three modes here for doing the packet copy. - * If we have DMA, and the packet is "long", we use the - * chaining mode of DMA. If it's shorter, we use single - * DMA's. Otherwise, we use memcpy(). - */ - if (priv0->use_dma && priv0->dmadesc_h && len > 64) - { - /* - * If we can use DMA and it's a long frame, copy it using - * DMA chaining. - */ - DMACHAIN *ddp_h; /* Host virtual DMA desc. pointer */ - DMACHAIN *ddp_s; /* Switch physical DMA desc. pointer */ - uchar *phys_p; - - /* - * Get the physical address of the STREAMS buffer. - * NOTE: allocb() guarantees that the whole buffer - * is in a single page if the length < 4096. - */ - phys_p = (uchar *) virt_to_phys(putp); - - ddp_h = priv0->dmadesc_h; - ddp_s = priv0->dmadesc_s; - tbdp = (I596_TBD *) S2H(cbp->xmit.tbdp); - for (;;) - { - int count; - int amt; - - count = tbdp->count; - amt = count & 0x3fff; - if (amt == 0) - break; /* For safety */ - if ( (p-putp) >= len) - { - printk("%s: cbp = %lx\n", devN->name, (long) H2S(cbp)); - proc_reset(dev0, 1); /* Freeze IDT */ - break; /* For Safety */ - } - - ddp_h->pciaddr = (ulong) phys_p; - ddp_h->lcladdr = S2DMA(tbdp->buf); - ddp_h->len = amt; - - phys_p += amt; - p += amt; - - if (count & I596_TBD_EOF) - { - ddp_h->next = PLX_DMA_DESC_TO_HOST - | PLX_DMA_DESC_EOC; - ++ddp_h; - break; - } - else - { - ++ddp_s; - ddp_h->next = PLX_DMA_DESC_TO_HOST - | (ulong) ddp_s; - tbdp = (I596_TBD *) S2H(tbdp->next); - ++ddp_h; - } - } - if (ddp_h - priv0->dmadesc_h) - { - int rc; - - rc = do_plx_dma(dev0, - 0, (ulong) priv0->dmadesc_s, len, 0); - if (rc) - { - printk("%s: Chained DMA failure\n", devN->name); - goto again; - } - } - } - else if (priv0->use_dma) - { - /* - * If we can use DMA and it's a shorter frame, copy it - * using single DMA transfers. - */ - uchar *phys_p; - - /* - * Get the physical address of the STREAMS buffer. - * NOTE: allocb() guarantees that the whole buffer - * is in a single page if the length < 4096. - */ - phys_p = (uchar *) virt_to_phys(putp); - - tbdp = (I596_TBD *) S2H(cbp->xmit.tbdp); - for (;;) - { - int count; - int amt; - int rc; - - count = tbdp->count; - amt = count & 0x3fff; - if (amt == 0) - break; /* For safety */ - if ( (p-putp) >= len) - { - printk("%s: cbp = %lx\n", devN->name, (long) H2S(cbp)); - proc_reset(dev0, 1); /* Freeze IDT */ - break; /* For Safety */ - } - rc = do_plx_dma(dev0, (ulong) phys_p, - S2DMA(tbdp->buf), amt, 1); - if (rc) - { - memcpy(p, S2H(tbdp->buf), amt); - printk("%s: Single DMA failed\n", devN->name); - } - phys_p += amt; - p += amt; - if (count & I596_TBD_EOF) - break; - tbdp = (I596_TBD *) S2H(tbdp->next); - } - } - else - { - /* - * Otherwise, copy it piece by piece using memcpy() - */ - tbdp = (I596_TBD *) S2H(cbp->xmit.tbdp); - for (;;) - { - int count; - int amt; - - count = tbdp->count; - amt = count & 0x3fff; - if (amt == 0) - break; /* For safety */ - if ( (p-putp) >= len) - { - printk("%s: cbp = %lx\n", devN->name, (long) H2S(cbp)); - proc_reset(dev0, 1); /* Freeze IDT */ - break; /* For Safety */ - } - memcpy(p, S2H(tbdp->buf), amt); - p += amt; - if (count & I596_TBD_EOF) - break; - tbdp = (I596_TBD *) S2H(tbdp->next); - } - } - - /* - * Pass the frame to upper half - */ - skb->protocol = eth_type_trans(skb, devN); - netif_rx(skb); - devN->last_rx = jiffies; - ++devN->stats.rx_packets; - devN->stats.rx_bytes += len; - -out: - cbp->xmit.status = I596_CB_STATUS_C | I596_CB_STATUS_OK; -} - -/* - * Start transmission of a frame - * - * The interface to the board is simple: we pretend that we are - * a fifth 82596 ethernet controller 'receiving' data, and copy the - * data into the same structures that a real 82596 would. This way, - * the board firmware handles the host 'port' the same as any other. - * - * NOTE: we do not use Bus master DMA for this routine. Turns out - * that it is not needed. Slave writes over the PCI bus are about - * as fast as DMA, due to the fact that the PLX part can do burst - * writes. The same is not true for data being read from the board. - * - * For multi-NIC mode, we tell the firmware the desired 82596 - * output port by setting the special "dstchan" member at the - * end of the traditional 82596 RFD structure. - */ - -static int dgrs_start_xmit(struct sk_buff *skb, struct net_device *devN) -{ - DGRS_PRIV *privN = (DGRS_PRIV *) devN->priv; - struct net_device *dev0; - DGRS_PRIV *priv0; - I596_RBD *rbdp; - int count; - int i, len, amt; - - /* - * Determine 0th priv and dev structure pointers - */ - if (dgrs_nicmode) - { - dev0 = privN->devtbl[0]; - priv0 = (DGRS_PRIV *) dev0->priv; - } - else - { - dev0 = devN; - priv0 = privN; - } - - if (dgrs_debug > 1) - printk("%s: xmit len=%d\n", devN->name, (int) skb->len); - - devN->trans_start = jiffies; - netif_start_queue(devN); - - if (priv0->rfdp->cmd & I596_RFD_EL) - { /* Out of RFD's */ - if (0) printk("%s: NO RFD's\n", devN->name); - goto no_resources; - } - - rbdp = priv0->rbdp; - count = 0; - priv0->rfdp->rbdp = (I596_RBD *) H2S(rbdp); - - i = 0; len = skb->len; - for (;;) - { - if (rbdp->size & I596_RBD_EL) - { /* Out of RBD's */ - if (0) printk("%s: NO RBD's\n", devN->name); - goto no_resources; - } - - amt = min_t(unsigned int, len, rbdp->size - count); - skb_copy_from_linear_data_offset(skb, i, S2H(rbdp->buf) + count, amt); - i += amt; - count += amt; - len -= amt; - if (len == 0) - { - if (skb->len < 60) - rbdp->count = 60 | I596_RBD_EOF; - else - rbdp->count = count | I596_RBD_EOF; - rbdp = (I596_RBD *) S2H(rbdp->next); - goto frame_done; - } - else if (count < 32) - { - /* More data to come, but we used less than 32 - * bytes of this RBD. Keep filling this RBD. - */ - {} /* Yes, we do nothing here */ - } - else - { - rbdp->count = count; - rbdp = (I596_RBD *) S2H(rbdp->next); - count = 0; - } - } - -frame_done: - priv0->rbdp = rbdp; - if (dgrs_nicmode) - priv0->rfdp->dstchan = privN->chan; - priv0->rfdp->status = I596_RFD_C | I596_RFD_OK; - priv0->rfdp = (I596_RFD *) S2H(priv0->rfdp->next); - - ++devN->stats.tx_packets; - - dev_kfree_skb (skb); - return (0); - -no_resources: - priv0->scbp->status |= I596_SCB_RNR; /* simulate I82596 */ - return (-EAGAIN); -} - -/* - * Open the interface - */ -static int -dgrs_open( struct net_device *dev ) -{ - netif_start_queue(dev); - return (0); -} - -/* - * Close the interface - */ -static int dgrs_close( struct net_device *dev ) -{ - netif_stop_queue(dev); - return (0); -} - -/* - * Set multicast list and/or promiscuous mode - */ - -static void dgrs_set_multicast_list( struct net_device *dev) -{ - DGRS_PRIV *priv = (DGRS_PRIV *) dev->priv; - - priv->port->is_promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; -} - -/* - * Unique ioctl's - */ -static int dgrs_ioctl(struct net_device *devN, struct ifreq *ifr, int cmd) -{ - DGRS_PRIV *privN = (DGRS_PRIV *) devN->priv; - DGRS_IOCTL ioc; - int i; - - if (cmd != DGRSIOCTL) - return -EINVAL; - - if(copy_from_user(&ioc, ifr->ifr_data, sizeof(DGRS_IOCTL))) - return -EFAULT; - - switch (ioc.cmd) - { - case DGRS_GETMEM: - if (ioc.len != sizeof(ulong)) - return -EINVAL; - if(copy_to_user(ioc.data, &devN->mem_start, ioc.len)) - return -EFAULT; - return (0); - case DGRS_SETFILTER: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (ioc.port > privN->bcomm->bc_nports) - return -EINVAL; - if (ioc.filter >= NFILTERS) - return -EINVAL; - if (ioc.len > privN->bcomm->bc_filter_area_len) - return -EINVAL; - - /* Wait for old command to finish */ - for (i = 0; i < 1000; ++i) - { - if ( (volatile long) privN->bcomm->bc_filter_cmd <= 0 ) - break; - udelay(1); - } - if (i >= 1000) - return -EIO; - - privN->bcomm->bc_filter_port = ioc.port; - privN->bcomm->bc_filter_num = ioc.filter; - privN->bcomm->bc_filter_len = ioc.len; - - if (ioc.len) - { - if(copy_from_user(S2HN(privN->bcomm->bc_filter_area), - ioc.data, ioc.len)) - return -EFAULT; - privN->bcomm->bc_filter_cmd = BC_FILTER_SET; - } - else - privN->bcomm->bc_filter_cmd = BC_FILTER_CLR; - return(0); - default: - return -EOPNOTSUPP; - } -} - -/* - * Process interrupts - * - * dev, priv will always refer to the 0th device in Multi-NIC mode. - */ - -static irqreturn_t dgrs_intr(int irq, void *dev_id) -{ - struct net_device *dev0 = dev_id; - DGRS_PRIV *priv0 = dev0->priv; - I596_CB *cbp; - int cmd; - int i; - - ++priv0->intrcnt; - if (1) ++priv0->bcomm->bc_cnt[4]; - if (0) - { - static int cnt = 100; - if (--cnt > 0) - printk("%s: interrupt: irq %d\n", dev0->name, irq); - } - - /* - * Get 596 command - */ - cmd = priv0->scbp->cmd; - - /* - * See if RU has been restarted - */ - if ( (cmd & I596_SCB_RUC) == I596_SCB_RUC_START) - { - if (0) printk("%s: RUC start\n", dev0->name); - priv0->rfdp = (I596_RFD *) S2H(priv0->scbp->rfdp); - priv0->rbdp = (I596_RBD *) S2H(priv0->rfdp->rbdp); - priv0->scbp->status &= ~(I596_SCB_RNR|I596_SCB_RUS); - /* - * Tell upper half (halves) - */ - if (dgrs_nicmode) - { - for (i = 0; i < priv0->nports; ++i) - netif_wake_queue (priv0->devtbl[i]); - } - else - netif_wake_queue (dev0); - /* if (bd->flags & TX_QUEUED) - DL_sched(bd, bdd); */ - } - - /* - * See if any CU commands to process - */ - if ( (cmd & I596_SCB_CUC) != I596_SCB_CUC_START) - { - priv0->scbp->cmd = 0; /* Ignore all other commands */ - goto ack_intr; - } - priv0->scbp->status &= ~(I596_SCB_CNA|I596_SCB_CUS); - - /* - * Process a command - */ - cbp = (I596_CB *) S2H(priv0->scbp->cbp); - priv0->scbp->cmd = 0; /* Safe to clear the command */ - for (;;) - { - switch (cbp->nop.cmd & I596_CB_CMD) - { - case I596_CB_CMD_XMIT: - dgrs_rcv_frame(dev0, priv0, cbp); - break; - default: - cbp->nop.status = I596_CB_STATUS_C | I596_CB_STATUS_OK; - break; - } - if (cbp->nop.cmd & I596_CB_CMD_EL) - break; - cbp = (I596_CB *) S2H(cbp->nop.next); - } - priv0->scbp->status |= I596_SCB_CNA; - - /* - * Ack the interrupt - */ -ack_intr: - if (priv0->plxreg) - OUTL(dev0->base_addr + PLX_LCL2PCI_DOORBELL, 1); - - return IRQ_HANDLED; -} - -/* - * Download the board firmware - */ -static int __init -dgrs_download(struct net_device *dev0) -{ - DGRS_PRIV *priv0 = (DGRS_PRIV *) dev0->priv; - int is; - unsigned long i; - - static const int iv2is[16] = { - 0, 0, 0, ES4H_IS_INT3, - 0, ES4H_IS_INT5, 0, ES4H_IS_INT7, - 0, 0, ES4H_IS_INT10, ES4H_IS_INT11, - ES4H_IS_INT12, 0, 0, ES4H_IS_INT15 }; - - /* - * Map in the dual port memory - */ - priv0->vmem = ioremap(dev0->mem_start, 2048*1024); - if (!priv0->vmem) - { - printk("%s: cannot map in board memory\n", dev0->name); - return -ENXIO; - } - - /* - * Hold the processor and configure the board addresses - */ - if (priv0->plxreg) - { /* PCI bus */ - proc_reset(dev0, 1); - } - else - { /* EISA bus */ - is = iv2is[dev0->irq & 0x0f]; - if (!is) - { - printk("%s: Illegal IRQ %d\n", dev0->name, dev0->irq); - iounmap(priv0->vmem); - priv0->vmem = NULL; - return -ENXIO; - } - OUTB(dev0->base_addr + ES4H_AS_31_24, - (uchar) (dev0->mem_start >> 24) ); - OUTB(dev0->base_addr + ES4H_AS_23_16, - (uchar) (dev0->mem_start >> 16) ); - priv0->is_reg = ES4H_IS_LINEAR | is | - ((uchar) (dev0->mem_start >> 8) & ES4H_IS_AS15); - OUTB(dev0->base_addr + ES4H_IS, priv0->is_reg); - OUTB(dev0->base_addr + ES4H_EC, ES4H_EC_ENABLE); - OUTB(dev0->base_addr + ES4H_PC, ES4H_PC_RESET); - OUTB(dev0->base_addr + ES4H_MW, ES4H_MW_ENABLE | 0x00); - } - - /* - * See if we can do DMA on the SE-6 - */ - priv0->use_dma = check_board_dma(dev0); - if (priv0->use_dma) - printk("%s: Bus Master DMA is enabled.\n", dev0->name); - - /* - * Load and verify the code at the desired address - */ - memcpy(priv0->vmem, dgrs_code, dgrs_ncode); /* Load code */ - if (memcmp(priv0->vmem, dgrs_code, dgrs_ncode)) - { - iounmap(priv0->vmem); - priv0->vmem = NULL; - printk("%s: download compare failed\n", dev0->name); - return -ENXIO; - } - - /* - * Configurables - */ - priv0->bcomm = (struct bios_comm *) (priv0->vmem + 0x0100); - priv0->bcomm->bc_nowait = 1; /* Tell board to make printf not wait */ - priv0->bcomm->bc_squelch = 0; /* Flag from Space.c */ - priv0->bcomm->bc_150ohm = 0; /* Flag from Space.c */ - - priv0->bcomm->bc_spew = 0; /* Debug flag from Space.c */ - priv0->bcomm->bc_maxrfd = 0; /* Debug flag from Space.c */ - priv0->bcomm->bc_maxrbd = 0; /* Debug flag from Space.c */ - - /* - * Tell board we are operating in switch mode (1) or in - * multi-NIC mode (2). |