fore200e.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:82k
- /*
- $Id: fore200e.c,v 1.5 2000/04/14 10:10:34 davem Exp $
- A FORE Systems 200E-series driver for ATM on Linux.
- Christophe Lizzi (lizzi@cnam.fr), October 1999-March 2000.
- Based on the PCA-200E driver from Uwe Dannowski (Uwe.Dannowski@inf.tu-dresden.de).
- This driver simultaneously supports PCA-200E and SBA-200E adapters
- on i386, alpha (untested), powerpc, sparc and sparc64 architectures.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include <linux/version.h>
- #include <linux/config.h>
- #include <linux/kernel.h>
- #include <linux/slab.h>
- #include <linux/init.h>
- #include <linux/capability.h>
- #include <linux/sched.h>
- #include <linux/interrupt.h>
- #include <linux/bitops.h>
- #include <linux/atmdev.h>
- #include <linux/sonet.h>
- #include <linux/atm_suni.h>
- #include <asm/io.h>
- #include <asm/string.h>
- #include <asm/segment.h>
- #include <asm/page.h>
- #include <asm/irq.h>
- #include <asm/dma.h>
- #include <asm/byteorder.h>
- #include <asm/uaccess.h>
- #include <asm/atomic.h>
- #include <linux/pci.h>
- #ifdef CONFIG_ATM_FORE200E_SBA
- #include <asm/idprom.h>
- #include <asm/sbus.h>
- #include <asm/openprom.h>
- #include <asm/oplib.h>
- #include <asm/pgtable.h>
- #endif
- #include <linux/module.h>
- #include "fore200e.h"
- #include "suni.h"
- #if 1 /* ensure correct handling of 52-byte AAL0 SDUs used by atmdump-like apps */
- #define FORE200E_52BYTE_AAL0_SDU
- #endif
- #define FORE200E_VERSION "0.2d"
- #define FORE200E "fore200e: "
- #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0)
- #define DPRINTK(level, format, args...) do { if (CONFIG_ATM_FORE200E_DEBUG >= (level))
- printk(FORE200E format, ##args); } while(0)
- #else
- #define DPRINTK(level, format, args...) while(0)
- #endif
- #define FORE200E_ALIGN(addr, alignment)
- ((((unsigned long)(addr) + (alignment - 1)) & ~(alignment - 1)) - (unsigned long)(addr))
- #define FORE200E_DMA_INDEX(dma_addr, type, index) ((dma_addr) + (index) * sizeof(type))
- #define FORE200E_INDEX(virt_addr, type, index) (&((type *)(virt_addr))[ index ])
- #define FORE200E_NEXT_ENTRY(index, modulo) (index = ++(index) % (modulo))
- #define MSECS(ms) (((ms)*HZ/1000)+1)
- extern const struct atmdev_ops fore200e_ops;
- extern const struct fore200e_bus fore200e_bus[];
- static struct fore200e* fore200e_boards = NULL;
- #ifdef MODULE
- MODULE_AUTHOR("Christophe Lizzi - credits to Uwe Dannowski and Heikki Vatiainen");
- MODULE_DESCRIPTION("FORE Systems 200E-series ATM driver - version " FORE200E_VERSION);
- MODULE_SUPPORTED_DEVICE("PCA-200E, SBA-200E");
- #endif
- static const int fore200e_rx_buf_nbr[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = {
- { BUFFER_S1_NBR, BUFFER_L1_NBR },
- { BUFFER_S2_NBR, BUFFER_L2_NBR }
- };
- static const int fore200e_rx_buf_size[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = {
- { BUFFER_S1_SIZE, BUFFER_L1_SIZE },
- { BUFFER_S2_SIZE, BUFFER_L2_SIZE }
- };
- #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0)
- static const char* fore200e_traffic_class[] = { "NONE", "UBR", "CBR", "VBR", "ABR", "ANY" };
- #endif
- #if 0 /* currently unused */
- static int
- fore200e_fore2atm_aal(enum fore200e_aal aal)
- {
- switch(aal) {
- case FORE200E_AAL0: return ATM_AAL0;
- case FORE200E_AAL34: return ATM_AAL34;
- case FORE200E_AAL5: return ATM_AAL5;
- }
- return -EINVAL;
- }
- #endif
- static enum fore200e_aal
- fore200e_atm2fore_aal(int aal)
- {
- switch(aal) {
- case ATM_AAL0: return FORE200E_AAL0;
- case ATM_AAL34: return FORE200E_AAL34;
- case ATM_AAL1:
- case ATM_AAL2:
- case ATM_AAL5: return FORE200E_AAL5;
- }
- return -EINVAL;
- }
- static char*
- fore200e_irq_itoa(int irq)
- {
- #if defined(__sparc_v9__)
- return __irq_itoa(irq);
- #else
- static char str[8];
- sprintf(str, "%d", irq);
- return str;
- #endif
- }
- static void*
- fore200e_kmalloc(int size, int flags)
- {
- void* chunk = kmalloc(size, flags);
- if (chunk)
- memset(chunk, 0x00, size);
- else
- printk(FORE200E "kmalloc() failed, requested size = %d, flags = 0x%xn", size, flags);
-
- return chunk;
- }
- static void
- fore200e_kfree(void* chunk)
- {
- kfree(chunk);
- }
- /* allocate and align a chunk of memory intended to hold the data behing exchanged
- between the driver and the adapter (using streaming DVMA) */
- static int
- fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, int alignment, int direction)
- {
- unsigned long offset = 0;
- if (alignment <= sizeof(int))
- alignment = 0;
- chunk->alloc_size = size + alignment;
- chunk->align_size = size;
- chunk->direction = direction;
- chunk->alloc_addr = fore200e_kmalloc(chunk->alloc_size, GFP_KERNEL | GFP_DMA);
- if (chunk->alloc_addr == NULL)
- return -ENOMEM;
- if (alignment > 0)
- offset = FORE200E_ALIGN(chunk->alloc_addr, alignment);
-
- chunk->align_addr = chunk->alloc_addr + offset;
- chunk->dma_addr = fore200e->bus->dma_map(fore200e, chunk->align_addr, chunk->align_size, direction);
-
- return 0;
- }
- /* free a chunk of memory */
- static void
- fore200e_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
- {
- fore200e->bus->dma_unmap(fore200e, chunk->dma_addr, chunk->dma_size, chunk->direction);
- fore200e_kfree(chunk->alloc_addr);
- }
- #if 0 /* currently unused */
- static int
- fore200e_checkup(struct fore200e* fore200e)
- {
- u32 hb1, hb2;
- hb1 = fore200e->bus->read(&fore200e->cp_queues->heartbeat);
- fore200e_spin(10);
- hb2 = fore200e->bus->read(&fore200e->cp_queues->heartbeat);
-
- if (hb2 <= hb1) {
- printk(FORE200E "device %s heartbeat is not counting upwards, hb1 = %x; hb2 = %xn",
- fore200e->name, hb1, hb2);
- return -EIO;
- }
- printk(FORE200E "device %s heartbeat is okn", fore200e->name);
-
- return 0;
- }
- #endif
- static void
- fore200e_spin(int msecs)
- {
- unsigned long timeout = jiffies + MSECS(msecs);
- while (time_before(jiffies, timeout));
- }
- static int
- fore200e_poll(struct fore200e* fore200e, volatile u32* addr, u32 val, int msecs)
- {
- unsigned long timeout = jiffies + MSECS(msecs);
- int ok;
- mb();
- do {
- if ((ok = (*addr == val)) || (*addr & STATUS_ERROR))
- break;
- } while (time_before(jiffies, timeout));
- #if 1
- if (!ok) {
- printk(FORE200E "cmd polling failed, got status 0x%08x, expected 0x%08xn",
- *addr, val);
- }
- #endif
- return ok;
- }
- static int
- fore200e_io_poll(struct fore200e* fore200e, volatile u32* addr, u32 val, int msecs)
- {
- unsigned long timeout = jiffies + MSECS(msecs);
- int ok;
- do {
- if ((ok = (fore200e->bus->read(addr) == val)))
- break;
- } while (time_before(jiffies, timeout));
- #if 1
- if (!ok) {
- printk(FORE200E "I/O polling failed, got status 0x%08x, expected 0x%08xn",
- fore200e->bus->read(addr), val);
- }
- #endif
- return ok;
- }
- static void
- fore200e_free_rx_buf(struct fore200e* fore200e)
- {
- int scheme, magn, nbr;
- struct buffer* buffer;
- for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) {
- for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) {
- if ((buffer = fore200e->host_bsq[ scheme ][ magn ].buffer) != NULL) {
- for (nbr = 0; nbr < fore200e_rx_buf_nbr[ scheme ][ magn ]; nbr++) {
- struct chunk* data = &buffer[ nbr ].data;
- if (data->alloc_addr != NULL)
- fore200e_chunk_free(fore200e, data);
- }
- }
- }
- }
- }
- static void
- fore200e_uninit_bs_queue(struct fore200e* fore200e)
- {
- int scheme, magn;
-
- for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) {
- for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) {
- struct chunk* status = &fore200e->host_bsq[ scheme ][ magn ].status;
- struct chunk* rbd_block = &fore200e->host_bsq[ scheme ][ magn ].rbd_block;
-
- if (status->alloc_addr)
- fore200e->bus->dma_chunk_free(fore200e, status);
-
- if (rbd_block->alloc_addr)
- fore200e->bus->dma_chunk_free(fore200e, rbd_block);
- }
- }
- }
- static int
- fore200e_reset(struct fore200e* fore200e, int diag)
- {
- int ok;
- fore200e->cp_monitor = (struct cp_monitor*)(fore200e->virt_base + FORE200E_CP_MONITOR_OFFSET);
-
- fore200e->bus->write(BSTAT_COLD_START, &fore200e->cp_monitor->bstat);
- fore200e->bus->reset(fore200e);
- if (diag) {
- ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_SELFTEST_OK, 1000);
- if (ok == 0) {
-
- printk(FORE200E "device %s self-test failedn", fore200e->name);
- return -ENODEV;
- }
- printk(FORE200E "device %s self-test passedn", fore200e->name);
-
- fore200e->state = FORE200E_STATE_RESET;
- }
- return 0;
- }
- static void
- fore200e_shutdown(struct fore200e* fore200e)
- {
- printk(FORE200E "removing device %s at 0x%lx, IRQ %sn",
- fore200e->name, fore200e->phys_base,
- fore200e_irq_itoa(fore200e->irq));
-
- if (fore200e->state > FORE200E_STATE_RESET) {
- /* first, reset the board to prevent further interrupts or data transfers */
- fore200e_reset(fore200e, 0);
- }
-
- /* then, release all allocated resources */
- switch(fore200e->state) {
- case FORE200E_STATE_COMPLETE:
- if (fore200e->stats)
- kfree(fore200e->stats);
- case FORE200E_STATE_IRQ:
- free_irq(fore200e->irq, fore200e->atm_dev);
- case FORE200E_STATE_ALLOC_BUF:
- fore200e_free_rx_buf(fore200e);
- case FORE200E_STATE_INIT_BSQ:
- fore200e_uninit_bs_queue(fore200e);
- case FORE200E_STATE_INIT_RXQ:
- fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.status);
- fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.rpd);
- case FORE200E_STATE_INIT_TXQ:
- fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.status);
- fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.tpd);
- case FORE200E_STATE_INIT_CMDQ:
- fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_cmdq.status);
- case FORE200E_STATE_INITIALIZE:
- /* nothing to do for that state */
- case FORE200E_STATE_START_FW:
- /* nothing to do for that state */
- case FORE200E_STATE_LOAD_FW:
- /* nothing to do for that state */
- case FORE200E_STATE_RESET:
- /* nothing to do for that state */
- case FORE200E_STATE_MAP:
- fore200e->bus->unmap(fore200e);
- case FORE200E_STATE_CONFIGURE:
- /* nothing to do for that state */
- case FORE200E_STATE_REGISTER:
- /* XXX shouldn't we *start* by deregistering the device? */
- atm_dev_deregister(fore200e->atm_dev);
- case FORE200E_STATE_BLANK:
- /* nothing to do for that state */
- break;
- }
- }
- #ifdef CONFIG_ATM_FORE200E_PCA
- static u32 fore200e_pca_read(volatile u32* addr)
- {
- /* on big-endian hosts, the board is configured to convert
- the endianess of slave RAM accesses */
- return le32_to_cpu(readl(addr));
- }
- static void fore200e_pca_write(u32 val, volatile u32* addr)
- {
- /* on big-endian hosts, the board is configured to convert
- the endianess of slave RAM accesses */
- writel(cpu_to_le32(val), addr);
- }
- static u32
- fore200e_pca_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction)
- {
- u32 dma_addr = pci_map_single((struct pci_dev*)fore200e->bus_dev, virt_addr, size, direction);
- DPRINTK(3, "PCI DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d, --> dma_addr = 0x%08xn",
- virt_addr, size, direction, dma_addr);
-
- return dma_addr;
- }
- static void
- fore200e_pca_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
- {
- DPRINTK(3, "PCI DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %dn",
- dma_addr, size, direction);
- pci_unmap_single((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction);
- }
- static void
- fore200e_pca_dma_sync(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
- {
- DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %dn", dma_addr, size, direction);
- pci_dma_sync_single((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction);
- }
- /* allocate a DMA consistent chunk of memory intended to act as a communication mechanism
- (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */
- static int
- fore200e_pca_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk,
- int size, int nbr, int alignment)
- {
- #if defined(__sparc_v9__)
- /* returned chunks are page-aligned */
- chunk->alloc_addr = pci_alloc_consistent((struct pci_dev*)fore200e->bus_dev,
- chunk->alloc_size,
- &chunk->dma_addr);
-
- if (chunk->alloc_addr == NULL || chunk->dma_addr == 0)
- return -ENOMEM;
- chunk->align_addr = chunk->alloc_addr;
- #else
- if (fore200e_chunk_alloc(fore200e, chunk, size * nbr, alignment, FORE200E_DMA_BIDIRECTIONAL) < 0)
- return -ENOMEM;
- #endif
-
- return 0;
- }
- /* free a DMA consistent chunk of memory */
- static void
- fore200e_pca_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
- {
- #if defined(__sparc_v9__)
- pci_free_consistent((struct pci_dev*)fore200e->bus_dev,
- chunk->alloc_size,
- chunk->alloc_addr,
- chunk->dma_addr);
- #else
- fore200e_chunk_free(fore200e, chunk);
- #endif
- }
- static int
- fore200e_pca_irq_check(struct fore200e* fore200e)
- {
- /* this is a 1 bit register */
- return readl(fore200e->regs.pca.psr);
- }
- static void
- fore200e_pca_irq_ack(struct fore200e* fore200e)
- {
- writel(PCA200E_HCR_CLRINTR, fore200e->regs.pca.hcr);
- }
- static void
- fore200e_pca_reset(struct fore200e* fore200e)
- {
- writel(PCA200E_HCR_RESET, fore200e->regs.pca.hcr);
- fore200e_spin(10);
- writel(0, fore200e->regs.pca.hcr);
- }
- static int __init
- fore200e_pca_map(struct fore200e* fore200e)
- {
- DPRINTK(2, "device %s being mapped in memoryn", fore200e->name);
- fore200e->virt_base = ioremap(fore200e->phys_base, PCA200E_IOSPACE_LENGTH);
-
- if (fore200e->virt_base == NULL) {
- printk(FORE200E "can't map device %sn", fore200e->name);
- return -EFAULT;
- }
- DPRINTK(1, "device %s mapped to 0x%pn", fore200e->name, fore200e->virt_base);
- /* gain access to the PCA-200E specific registers */
- fore200e->regs.pca.hcr = (u32*)(fore200e->virt_base + PCA200E_HCR_OFFSET);
- fore200e->regs.pca.imr = (u32*)(fore200e->virt_base + PCA200E_IMR_OFFSET);
- fore200e->regs.pca.psr = (u32*)(fore200e->virt_base + PCA200E_PSR_OFFSET);
- fore200e->state = FORE200E_STATE_MAP;
- return 0;
- }
- static void
- fore200e_pca_unmap(struct fore200e* fore200e)
- {
- DPRINTK(2, "device %s being unmapped from memoryn", fore200e->name);
- /* XXX iounmap() does nothing on PowerPC (at least in 2.2.12 and 2.3.41),
- this leads to a kernel panic if the module is loaded and unloaded several times */
- if (fore200e->virt_base != NULL)
- iounmap(fore200e->virt_base);
- }
- static int __init
- fore200e_pca_configure(struct fore200e* fore200e)
- {
- struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev;
- u8 master_ctrl;
- DPRINTK(2, "device %s being configuredn", fore200e->name);
- if ((pci_dev->irq == 0) || (pci_dev->irq == 0xFF)) {
- printk(FORE200E "incorrect IRQ setting - misconfigured PCI-PCI bridge?n");
- return -EIO;
- }
- pci_read_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, &master_ctrl);
- master_ctrl = master_ctrl
- #if 0
- | PCA200E_CTRL_DIS_CACHE_RD
- | PCA200E_CTRL_DIS_WRT_INVAL
- #endif
- #if defined(__BIG_ENDIAN)
- /* request the PCA board to convert the endianess of slave RAM accesses */
- | PCA200E_CTRL_CONVERT_ENDIAN
- #endif
- | PCA200E_CTRL_LARGE_PCI_BURSTS;
-
- pci_write_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, master_ctrl);
- fore200e->state = FORE200E_STATE_CONFIGURE;
- return 0;
- }
- static struct fore200e* __init
- fore200e_pca_detect(const struct fore200e_bus* bus, int index)
- {
- struct fore200e* fore200e;
- struct pci_dev* pci_dev = NULL;
- int count = index;
-
- if (pci_present() == 0) {
- printk(FORE200E "no PCI subsystemn");
- return NULL;
- }
- do {
- pci_dev = pci_find_device(PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, pci_dev);
- if (pci_dev == NULL)
- return NULL;
- } while (count--);
- if (pci_enable_device(pci_dev))
- return NULL;
-
- fore200e = fore200e_kmalloc(sizeof(struct fore200e), GFP_KERNEL);
- if (fore200e == NULL)
- return NULL;
- fore200e->bus = bus;
- fore200e->bus_dev = pci_dev;
- fore200e->irq = pci_dev->irq;
- fore200e->phys_base = pci_resource_start (pci_dev, 0);
- #if defined(__powerpc__)
- fore200e->phys_base += KERNELBASE;
- #endif
- sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1);
- pci_set_master(pci_dev);
- return fore200e;
- }
- static int __init
- fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom)
- {
- struct host_cmdq* cmdq = &fore200e->host_cmdq;
- struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ];
- struct prom_opcode opcode;
- int ok;
- u32 prom_dma;
- FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);
- opcode.opcode = OPCODE_GET_PROM;
- opcode.pad = 0;
- prom_dma = fore200e->bus->dma_map(fore200e, prom, sizeof(struct prom_data), FORE200E_DMA_FROMDEVICE);
- fore200e->bus->write(prom_dma, &entry->cp_entry->cmd.prom_block.prom_haddr);
-
- *entry->status = STATUS_PENDING;
- fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.prom_block.opcode);
- ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400);
- *entry->status = STATUS_FREE;
- fore200e->bus->dma_unmap(fore200e, prom_dma, sizeof(struct prom_data), FORE200E_DMA_FROMDEVICE);
- if (ok == 0) {
- printk(FORE200E "unable to get PROM data from device %sn", fore200e->name);
- return -EIO;
- }
- #if defined(__BIG_ENDIAN)
-
- #define swap_here(addr) (*((u32*)(addr)) = swab32( *((u32*)(addr)) ))
- /* MAC address is stored as little-endian */
- swap_here(&prom->mac_addr[0]);
- swap_here(&prom->mac_addr[4]);
- #endif
-
- return 0;
- }
- static int
- fore200e_pca_proc_read(struct fore200e* fore200e, char *page)
- {
- struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev;
- return sprintf(page, " PCI bus/slot/function:t%d/%d/%dn",
- pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
- }
- #endif /* CONFIG_ATM_FORE200E_PCA */
- #ifdef CONFIG_ATM_FORE200E_SBA
- static u32
- fore200e_sba_read(volatile u32* addr)
- {
- return sbus_readl(addr);
- }
- static void
- fore200e_sba_write(u32 val, volatile u32* addr)
- {
- sbus_writel(val, addr);
- }
- static u32
- fore200e_sba_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction)
- {
- u32 dma_addr = sbus_map_single((struct sbus_dev*)fore200e->bus_dev, virt_addr, size, direction);
- DPRINTK(3, "SBUS DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d --> dma_addr = 0x%08xn",
- virt_addr, size, direction, dma_addr);
-
- return dma_addr;
- }
- static void
- fore200e_sba_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
- {
- DPRINTK(3, "SBUS DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d,n",
- dma_addr, size, direction);
- sbus_unmap_single((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction);
- }
- static void
- fore200e_sba_dma_sync(struct fore200e* fore200e, u32 dma_addr, int size, int direction)
- {
- DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %dn", dma_addr, size, direction);
-
- sbus_dma_sync_single((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction);
- }
- /* allocate a DVMA consistent chunk of memory intended to act as a communication mechanism
- (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */
- static int
- fore200e_sba_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk,
- int size, int nbr, int alignment)
- {
- chunk->alloc_size = chunk->align_size = size * nbr;
- /* returned chunks are page-aligned */
- chunk->alloc_addr = sbus_alloc_consistent((struct sbus_dev*)fore200e->bus_dev,
- chunk->alloc_size,
- &chunk->dma_addr);
- if (chunk->alloc_addr == NULL || chunk->dma_addr == 0)
- return -ENOMEM;
- chunk->align_addr = chunk->alloc_addr;
-
- return 0;
- }
- /* free a DVMA consistent chunk of memory */
- static void
- fore200e_sba_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk)
- {
- sbus_free_consistent((struct sbus_dev*)fore200e->bus_dev,
- chunk->alloc_size,
- chunk->alloc_addr,
- chunk->dma_addr);
- }
- static void
- fore200e_sba_irq_enable(struct fore200e* fore200e)
- {
- u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY;
- fore200e->bus->write(hcr | SBA200E_HCR_INTR_ENA, fore200e->regs.sba.hcr);
- }
- static int
- fore200e_sba_irq_check(struct fore200e* fore200e)
- {
- return fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_INTR_REQ;
- }
- static void
- fore200e_sba_irq_ack(struct fore200e* fore200e)
- {
- u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY;
- fore200e->bus->write(hcr | SBA200E_HCR_INTR_CLR, fore200e->regs.sba.hcr);
- }
- static void
- fore200e_sba_reset(struct fore200e* fore200e)
- {
- fore200e->bus->write(SBA200E_HCR_RESET, fore200e->regs.sba.hcr);
- fore200e_spin(10);
- fore200e->bus->write(0, fore200e->regs.sba.hcr);
- }
- static int __init
- fore200e_sba_map(struct fore200e* fore200e)
- {
- struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev;
- unsigned int bursts;
- /* gain access to the SBA-200E specific registers */
-
- fore200e->regs.sba.hcr = (u32*)sbus_ioremap(&sbus_dev->resource[0], 0, SBA200E_HCR_LENGTH, "SBA HCR");
- fore200e->regs.sba.bsr = (u32*)sbus_ioremap(&sbus_dev->resource[1], 0, SBA200E_BSR_LENGTH, "SBA BSR");
- fore200e->regs.sba.isr = (u32*)sbus_ioremap(&sbus_dev->resource[2], 0, SBA200E_ISR_LENGTH, "SBA ISR");
- fore200e->virt_base = (u32*)sbus_ioremap(&sbus_dev->resource[3], 0, SBA200E_RAM_LENGTH, "SBA RAM");
- if (fore200e->virt_base == NULL) {
- printk(FORE200E "unable to map RAM of device %sn", fore200e->name);
- return -EFAULT;
- }
- DPRINTK(1, "device %s mapped to 0x%pn", fore200e->name, fore200e->virt_base);
-
- fore200e->bus->write(0x02, fore200e->regs.sba.isr); /* XXX hardwired interrupt level */
- /* get the supported DVMA burst sizes */
- bursts = prom_getintdefault(sbus_dev->bus->prom_node, "burst-sizes", 0x00);
- if (sbus_can_dma_64bit(sbus_dev))
- sbus_set_sbus64(sbus_dev, bursts);
- #if 0
- if (bursts & DMA_BURST16)
- fore200e->bus->write(SBA200E_BSR_BURST16, fore200e->regs.sba.bsr);
- else
- if (bursts & DMA_BURST8)
- fore200e->bus->write(SBA200E_BSR_BURST8, fore200e->regs.sba.bsr);
- else
- if (bursts & DMA_BURST4)
- fore200e->bus->write(SBA200E_BSR_BURST4, fore200e->regs.sba.bsr);
- #endif
- fore200e->state = FORE200E_STATE_MAP;
- return 0;
- }
- static void
- fore200e_sba_unmap(struct fore200e* fore200e)
- {
- sbus_iounmap((ulong)fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH);
- sbus_iounmap((ulong)fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH);
- sbus_iounmap((ulong)fore200e->regs.sba.isr, SBA200E_ISR_LENGTH);
- sbus_iounmap((ulong)fore200e->virt_base, SBA200E_RAM_LENGTH);
- }
- static int __init
- fore200e_sba_configure(struct fore200e* fore200e)
- {
- fore200e->state = FORE200E_STATE_CONFIGURE;
- return 0;
- }
- static struct fore200e* __init
- fore200e_sba_detect(const struct fore200e_bus* bus, int index)
- {
- struct fore200e* fore200e;
- struct sbus_bus* sbus_bus;
- struct sbus_dev* sbus_dev = NULL;
-
- unsigned int count = 0;
-
- for_each_sbus (sbus_bus) {
- for_each_sbusdev (sbus_dev, sbus_bus) {
- if (strcmp(sbus_dev->prom_name, SBA200E_PROM_NAME) == 0) {
- if (count >= index)
- goto found;
- count++;
- }
- }
- }
- return NULL;
-
- found:
- #if 1
- if (sbus_dev->num_registers != 4) {
- printk(FORE200E "this %s device has %d instead of 4 registersn",
- bus->model_name, sbus_dev->num_registers);
- return NULL;
- }
- #endif
- fore200e = fore200e_kmalloc(sizeof(struct fore200e), GFP_KERNEL);
- if (fore200e == NULL)
- return NULL;
- fore200e->bus = bus;
- fore200e->bus_dev = sbus_dev;
- fore200e->irq = sbus_dev->irqs[ 0 ];
- fore200e->phys_base = (unsigned long)sbus_dev;
- sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1);
-
- return fore200e;
- }
- static int __init
- fore200e_sba_prom_read(struct fore200e* fore200e, struct prom_data* prom)
- {
- struct sbus_dev* sbus_dev = (struct sbus_dev*) fore200e->bus_dev;
- int len;
- len = prom_getproperty(sbus_dev->prom_node, "macaddrlo2", &prom->mac_addr[ 4 ], 4);
- if (len < 0)
- return -EBUSY;
- len = prom_getproperty(sbus_dev->prom_node, "macaddrhi4", &prom->mac_addr[ 2 ], 4);
- if (len < 0)
- return -EBUSY;
-
- prom_getproperty(sbus_dev->prom_node, "serialnumber",
- (char*)&prom->serial_number, sizeof(prom->serial_number));
-
- prom_getproperty(sbus_dev->prom_node, "promversion",
- (char*)&prom->hw_revision, sizeof(prom->hw_revision));
-
- return 0;
- }
- static int
- fore200e_sba_proc_read(struct fore200e* fore200e, char *page)
- {
- struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev;
- return sprintf(page, " SBUS slot/device:tt%d/'%s'n", sbus_dev->slot, sbus_dev->prom_name);
- }
- #endif /* CONFIG_ATM_FORE200E_SBA */
- static void
- fore200e_irq_tx(struct fore200e* fore200e)
- {
- struct host_txq_entry* entry;
- int i;
-
- entry = fore200e->host_txq.host_entry;
- for (i = 0; i < QUEUE_SIZE_TX; i++) {
- if (*entry->status & STATUS_COMPLETE) {
- DPRINTK(3, "TX COMPLETED: entry = %p, vcc = %p, skb = %pn", entry, entry->vcc, entry->skb);
- /* free copy of misaligned data */
- if (entry->data)
- kfree(entry->data);
- /* remove DMA mapping */
- fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length,
- FORE200E_DMA_TODEVICE);
- /* notify tx completion */
- if (entry->vcc->pop)
- entry->vcc->pop(entry->vcc, entry->skb);
- else
- dev_kfree_skb_irq(entry->skb);
- /* check error condition */
- if (*entry->status & STATUS_ERROR)
- atomic_inc(&entry->vcc->stats->tx_err);
- else
- atomic_inc(&entry->vcc->stats->tx);
- *entry->status = STATUS_FREE;
-
- fore200e->host_txq.txing--;
- }
- entry++;
- }
- }
- static void
- fore200e_supply(struct fore200e* fore200e)
- {
- int scheme, magn, i;
- struct host_bsq* bsq;
- struct host_bsq_entry* entry;
- struct buffer* buffer;
- for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) {
- for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) {
- bsq = &fore200e->host_bsq[ scheme ][ magn ];
- if (fore200e_rx_buf_nbr[ scheme ][ magn ] - bsq->count > RBD_BLK_SIZE) {
- DPRINTK(2, "supplying rx buffers to queue %d / %d, count = %dn",
- scheme, magn, bsq->count);
- entry = &bsq->host_entry[ bsq->head ];
-
- FORE200E_NEXT_ENTRY(bsq->head, QUEUE_SIZE_BS);
- for (i = 0; i < RBD_BLK_SIZE; i++) {
- buffer = &bsq->buffer[ bsq->free ];
-
- FORE200E_NEXT_ENTRY(bsq->free, fore200e_rx_buf_nbr[ scheme ][ magn ]);
-
- entry->rbd_block->rbd[ i ].buffer_haddr = buffer->data.dma_addr;
- entry->rbd_block->rbd[ i ].handle = FORE200E_BUF2HDL(buffer);
- }
- /* increase the number of supplied rx buffers */
- bsq->count += RBD_BLK_SIZE;
-
- *entry->status = STATUS_PENDING;
- fore200e->bus->write(entry->rbd_block_dma, &entry->cp_entry->rbd_block_haddr);
- }
- }
- }
- }
- static struct atm_vcc*
- fore200e_find_vcc(struct fore200e* fore200e, struct rpd* rpd)
- {
- struct atm_vcc* vcc;
- for (vcc = fore200e->atm_dev->vccs; vcc; vcc = vcc->next) {
- if (vcc->vpi == rpd->atm_header.vpi && vcc->vci == rpd->atm_header.vci)
- break;
- }
-
- return vcc;
- }
- static void
- fore200e_push_rpd(struct fore200e* fore200e, struct rpd* rpd)
- {
- struct atm_vcc* vcc;
- struct sk_buff* skb;
- struct buffer* buffer;
- struct fore200e_vcc* fore200e_vcc;
- int i, pdu_len = 0;
- #ifdef FORE200E_52BYTE_AAL0_SDU
- u32 cell_header = 0;
- #endif
- vcc = fore200e_find_vcc(fore200e, rpd);
- if (vcc == NULL) {
-
- printk(FORE200E "no vcc found for PDU received on %d.%d.%dn",
- fore200e->atm_dev->number, rpd->atm_header.vpi, rpd->atm_header.vci);
- return;
- }
- fore200e_vcc = FORE200E_VCC(vcc);
- #ifdef FORE200E_52BYTE_AAL0_SDU
- if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.rxtp.max_sdu == ATM_AAL0_SDU)) {
- cell_header = (rpd->atm_header.gfc << ATM_HDR_GFC_SHIFT) |
- (rpd->atm_header.vpi << ATM_HDR_VPI_SHIFT) |
- (rpd->atm_header.vci << ATM_HDR_VCI_SHIFT) |
- (rpd->atm_header.plt << ATM_HDR_PTI_SHIFT) |
- rpd->atm_header.clp;
- pdu_len = 4;
- }
- #endif
-
- /* compute total PDU length */
- for (i = 0; i < rpd->nseg; i++)
- pdu_len += rpd->rsd[ i ].length;
-
- skb = alloc_skb(pdu_len, GFP_ATOMIC);
- if (skb == NULL) {
-
- printk(FORE200E "unable to alloc new skb, rx PDU length = %dn", pdu_len);
- atomic_inc(&vcc->stats->rx_drop);
- return;
- }
- skb->stamp = vcc->timestamp = xtime;
-
- #ifdef FORE200E_52BYTE_AAL0_SDU
- if (cell_header) {
- *((u32*)skb_put(skb, 4)) = cell_header;
- }
- #endif
- /* reassemble segments */
- for (i = 0; i < rpd->nseg; i++) {
-
- /* rebuild rx buffer address from rsd handle */
- buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle);
-
- /* ensure DMA synchronisation */
- fore200e->bus->dma_sync(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, FORE200E_DMA_FROMDEVICE);
-
- memcpy(skb_put(skb, rpd->rsd[ i ].length), buffer->data.align_addr, rpd->rsd[ i ].length);
- }
-
- DPRINTK(3, "rx skb: len = %d, truesize = %dn", skb->len, skb->truesize);
-
- if (pdu_len < fore200e_vcc->rx_min_pdu)
- fore200e_vcc->rx_min_pdu = pdu_len;
- if (pdu_len > fore200e_vcc->rx_max_pdu)
- fore200e_vcc->rx_max_pdu = pdu_len;
- /* push PDU */
- if (atm_charge(vcc, skb->truesize) == 0) {
- DPRINTK(2, "receive buffers saturated for %d.%d.%d - PDU droppedn",
- vcc->itf, vcc->vpi, vcc->vci);
- dev_kfree_skb_irq(skb);
- return;
- }
- vcc->push(vcc, skb);
- atomic_inc(&vcc->stats->rx);
- }
- static void
- fore200e_collect_rpd(struct fore200e* fore200e, struct rpd* rpd)
- {
- struct buffer* buffer;
- int i;
-
- for (i = 0; i < rpd->nseg; i++) {
- /* rebuild rx buffer address from rsd handle */
- buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle);
- /* decrease the number of supplied rx buffers */
- fore200e->host_bsq[ buffer->scheme ][ buffer->magn ].count--;
- }
- }
- static void
- fore200e_irq_rx(struct fore200e* fore200e)
- {
- struct host_rxq* rxq = &fore200e->host_rxq;
- struct host_rxq_entry* entry;
- for (;;) {
-
- entry = &rxq->host_entry[ rxq->head ];
- /* no more received PDUs */
- if ((*entry->status & STATUS_COMPLETE) == 0)
- break;
- FORE200E_NEXT_ENTRY(rxq->head, QUEUE_SIZE_RX);
- if ((*entry->status & STATUS_ERROR) == 0) {
- fore200e_push_rpd(fore200e, entry->rpd);
- }
- else {
- printk(FORE200E "damaged PDU on %d.%d.%dn",
- fore200e->atm_dev->number, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
- }
- fore200e_collect_rpd(fore200e, entry->rpd);
- fore200e_supply(fore200e);
- /* rewrite the rpd address to ack the received PDU */
- fore200e->bus->write(entry->rpd_dma, &entry->cp_entry->rpd_haddr);
- *entry->status = STATUS_FREE;
- }
- }
- static void
- fore200e_interrupt(int irq, void* dev, struct pt_regs* regs)
- {
- struct fore200e* fore200e = FORE200E_DEV((struct atm_dev*)dev);
- if (fore200e->bus->irq_check(fore200e) == 0) {
-
- DPRINTK(3, "unexpected interrupt on device %cn", fore200e->name[9]);
- return;
- }
- DPRINTK(3, "valid interrupt on device %cn", fore200e->name[9]);
- tasklet_schedule(&fore200e->tasklet);
-
- fore200e->bus->irq_ack(fore200e);
- }
- static void
- fore200e_tasklet(unsigned long data)
- {
- struct fore200e* fore200e = (struct fore200e*) data;
- fore200e_irq_rx(fore200e);
-
- if (fore200e->host_txq.txing)
- fore200e_irq_tx(fore200e);
- }
- static int
- fore200e_select_scheme(struct atm_vcc* vcc)
- {
- int scheme;
- #if 1
- /* fairly balance VCs over (identical) buffer schemes */
- scheme = vcc->vci % 2 ? BUFFER_SCHEME_ONE : BUFFER_SCHEME_TWO;
- #else
- /* bit 7 of VPI magically selects the second buffer scheme */
- if (vcc->vpi & (1<<7)) {
- vcc->vpi &= ((1<<7) - 1); /* reset the magic bit */
- scheme = BUFFER_SCHEME_TWO;
- }
- else {
- scheme = BUFFER_SCHEME_ONE;
- }
- #endif
-
- DPRINTK(1, "vpvc %d.%d.%d uses the %s buffer schemen",
- vcc->itf, vcc->vpi, vcc->vci, scheme == BUFFER_SCHEME_ONE ? "first" : "second");
- return scheme;
- }
- static int
- fore200e_activate_vcin(struct fore200e* fore200e, int activate, struct atm_vcc* vcc, int mtu)
- {
- struct host_cmdq* cmdq = &fore200e->host_cmdq;
- struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ];
- struct activate_opcode activ_opcode;
- struct deactivate_opcode deactiv_opcode;
- struct vpvc vpvc;
- int ok;
- enum fore200e_aal aal = fore200e_atm2fore_aal(vcc->qos.aal);
- FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);
-
- if (activate) {
- FORE200E_VCC(vcc)->scheme = fore200e_select_scheme(vcc);
-
- activ_opcode.opcode = OPCODE_ACTIVATE_VCIN;
- activ_opcode.aal = aal;
- activ_opcode.scheme = FORE200E_VCC(vcc)->scheme;
- activ_opcode.pad = 0;
- }
- else {
- deactiv_opcode.opcode = OPCODE_DEACTIVATE_VCIN;
- deactiv_opcode.pad = 0;
- }
- vpvc.vci = vcc->vci;
- vpvc.vpi = vcc->vpi;
- *entry->status = STATUS_PENDING;
- if (activate) {
- #ifdef FORE200E_52BYTE_AAL0_SDU
- mtu = 48;
- #endif
- /* the MTU is unused by the cp, except in the case of AAL0 */
- fore200e->bus->write(mtu, &entry->cp_entry->cmd.activate_block.mtu);
- fore200e->bus->write(*(u32*)&vpvc, (u32*)&entry->cp_entry->cmd.activate_block.vpvc);
- fore200e->bus->write(*(u32*)&activ_opcode, (u32*)&entry->cp_entry->cmd.activate_block.opcode);
- }
- else {
- fore200e->bus->write(*(u32*)&vpvc, (u32*)&entry->cp_entry->cmd.deactivate_block.vpvc);
- fore200e->bus->write(*(u32*)&deactiv_opcode, (u32*)&entry->cp_entry->cmd.deactivate_block.opcode);
- }
- ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400);
- *entry->status = STATUS_FREE;
- if (ok == 0) {
- printk(FORE200E "unable to %s vpvc %d.%d on device %sn",
- activate ? "open" : "close", vcc->vpi, vcc->vci, fore200e->name);
- return -EIO;
- }
- DPRINTK(1, "vpvc %d.%d %sed on device %sn", vcc->vpi, vcc->vci,
- activate ? "open" : "clos", fore200e->name);
- return 0;
- }
- static int
- fore200e_walk_vccs(struct atm_vcc *vcc, short *vpi, int *vci)
- {
- struct atm_vcc* walk;
- /* find a free VPI */
- if (*vpi == ATM_VPI_ANY) {
- for (*vpi = 0, walk = vcc->dev->vccs; walk; walk = walk->next) {
- if ((walk->vci == *vci) && (walk->vpi == *vpi)) {
- (*vpi)++;
- walk = vcc->dev->vccs;
- }
- }
- }
- /* find a free VCI */
- if (*vci == ATM_VCI_ANY) {
-
- for (*vci = ATM_NOT_RSV_VCI, walk = vcc->dev->vccs; walk; walk = walk->next) {
- if ((walk->vpi = *vpi) && (walk->vci == *vci)) {
- *vci = walk->vci + 1;
- walk = vcc->dev->vccs;
- }
- }
- }
- return 0;
- }
- #define FORE200E_MAX_BACK2BACK_CELLS 255 /* XXX depends on CDVT */
- static void
- fore200e_rate_ctrl(struct atm_qos* qos, struct tpd_rate* rate)
- {
- if (qos->txtp.max_pcr < ATM_OC3_PCR) {
-
- /* compute the data cells to idle cells ratio from the PCR */
- rate->data_cells = qos->txtp.max_pcr * FORE200E_MAX_BACK2BACK_CELLS / ATM_OC3_PCR;
- rate->idle_cells = FORE200E_MAX_BACK2BACK_CELLS - rate->data_cells;
- }
- else {
- /* disable rate control */
- rate->data_cells = rate->idle_cells = 0;
- }
- }
- static int
- fore200e_open(struct atm_vcc *vcc, short vpi, int vci)
- {
- struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
- struct fore200e_vcc* fore200e_vcc;
-
- /* find a free VPI/VCI */
- fore200e_walk_vccs(vcc, &vpi, &vci);
- vcc->vpi = vpi;
- vcc->vci = vci;
- /* ressource checking only? */
- if (vci == ATM_VCI_UNSPEC || vpi == ATM_VPI_UNSPEC)
- return 0;
- set_bit(ATM_VF_ADDR, &vcc->flags);
- vcc->itf = vcc->dev->number;
- DPRINTK(2, "opening %d.%d.%d:%d QoS = (tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; "
- "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d)n",
- vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal),
- fore200e_traffic_class[ vcc->qos.txtp.traffic_class ],
- vcc->qos.txtp.min_pcr, vcc->qos.txtp.max_pcr, vcc->qos.txtp.max_cdv, vcc->qos.txtp.max_sdu,
- fore200e_traffic_class[ vcc->qos.rxtp.traffic_class ],
- vcc->qos.rxtp.min_pcr, vcc->qos.rxtp.max_pcr, vcc->qos.rxtp.max_cdv, vcc->qos.rxtp.max_sdu);
-
- if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) {
-
- down(&fore200e->rate_sf);
- if (fore200e->available_cell_rate < vcc->qos.txtp.max_pcr) {
- up(&fore200e->rate_sf);
- return -EAGAIN;
- }
- /* reserving the pseudo-CBR bandwidth at this point grants us
- to reduce the length of the critical section protected
- by 'rate_sf'. in counterpart, we have to reset the available
- bandwidth if we later encounter an error */
- fore200e->available_cell_rate -= vcc->qos.txtp.max_pcr;
- up(&fore200e->rate_sf);
- }
-
- fore200e_vcc = fore200e_kmalloc(sizeof(struct fore200e_vcc), GFP_KERNEL);
- if (fore200e_vcc == NULL) {
- down(&fore200e->rate_sf);
- fore200e->available_cell_rate += vcc->qos.txtp.max_pcr;
- up(&fore200e->rate_sf);
- return -ENOMEM;
- }
- FORE200E_VCC(vcc) = fore200e_vcc;
-
- if (fore200e_activate_vcin(fore200e, 1, vcc, vcc->qos.rxtp.max_sdu) < 0) {
- kfree(fore200e_vcc);
- down(&fore200e->rate_sf);
- fore200e->available_cell_rate += vcc->qos.txtp.max_pcr;
- up(&fore200e->rate_sf);
- return -EBUSY;
- }
-
- /* compute rate control parameters */
- if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) {
-
- fore200e_rate_ctrl(&vcc->qos, &fore200e_vcc->rate);
- DPRINTK(3, "tx on %d.%d.%d:%d, tx PCR = %d, rx PCR = %d, data_cells = %u, idle_cells = %un",
- vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal),
- vcc->qos.txtp.max_pcr, vcc->qos.rxtp.max_pcr,
- fore200e_vcc->rate.data_cells, fore200e_vcc->rate.idle_cells);
- }
-
- fore200e_vcc->tx_min_pdu = fore200e_vcc->rx_min_pdu = 65536;
- fore200e_vcc->tx_max_pdu = fore200e_vcc->rx_max_pdu = 0;
-
- set_bit(ATM_VF_READY, &vcc->flags);
- return 0;
- }
- static void
- fore200e_close(struct atm_vcc* vcc)
- {
- struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
-
- DPRINTK(2, "closing %d.%d.%d:%dn", vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal));
-
- fore200e_activate_vcin(fore200e, 0, vcc, 0);
-
- kfree(FORE200E_VCC(vcc));
-
- if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) {
- down(&fore200e->rate_sf);
- fore200e->available_cell_rate += vcc->qos.txtp.max_pcr;
- up(&fore200e->rate_sf);
- }
- clear_bit(ATM_VF_READY, &vcc->flags);
- }
- #if 0
- #define FORE200E_SYNC_SEND /* wait tx completion before returning */
- #endif
- static int
- fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
- {
- struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
- struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc);
- struct host_txq* txq = &fore200e->host_txq;
- struct host_txq_entry* entry;
- struct tpd* tpd;
- struct tpd_haddr tpd_haddr;
- //unsigned long flags;
- int retry = CONFIG_ATM_FORE200E_TX_RETRY;
- int tx_copy = 0;
- int tx_len = skb->len;
- u32* cell_header = NULL;
- unsigned char* skb_data;
- int skb_len;
- #ifdef FORE200E_52BYTE_AAL0_SDU
- if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.txtp.max_sdu == ATM_AAL0_SDU)) {
- cell_header = (u32*) skb->data;
- skb_data = skb->data + 4; /* skip 4-byte cell header */
- skb_len = tx_len = skb->len - 4;
- DPRINTK(3, "skipping user-supplied cell header 0x%08x", *cell_header);
- }
- else
- #endif
- {
- skb_data = skb->data;
- skb_len = skb->len;
- }
-
- retry_here:
-
- tasklet_disable(&fore200e->tasklet);
- entry = &txq->host_entry[ txq->head ];
-
- if (*entry->status != STATUS_FREE) {
-
- /* try to free completed tx queue entries */
- fore200e_irq_tx(fore200e);
-
- if (*entry->status != STATUS_FREE) {
-
- tasklet_enable(&fore200e->tasklet);
- /* retry once again? */
- if(--retry > 0)
- goto retry_here;
-
- atomic_inc(&vcc->stats->tx_err);
-
- printk(FORE200E "tx queue of device %s is saturated, PDU dropped - heartbeat is %08xn",
- fore200e->name, fore200e->cp_queues->heartbeat);
- if (vcc->pop)
- vcc->pop(vcc, skb);
- else
- dev_kfree_skb(skb);
- return -EIO;
- }
- }
- tpd = entry->tpd;
- if (((unsigned long)skb_data) & 0x3) {
- DPRINTK(2, "misaligned tx PDU on device %sn", fore200e->name);
- tx_copy = 1;
- tx_len = skb_len;
- }
- if ((vcc->qos.aal == ATM_AAL0) && (skb_len % ATM_CELL_PAYLOAD)) {
- /* this simply NUKES the PCA-200E board */
- DPRINTK(2, "incomplete tx AAL0 PDU on device %sn", fore200e->name);
- tx_copy = 1;
- tx_len = ((skb_len / ATM_CELL_PAYLOAD) + 1) * ATM_CELL_PAYLOAD;
- }
-
- if (tx_copy) {
-
- entry->data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA);
- if (entry->data == NULL) {
-
- tasklet_enable(&fore200e->tasklet);
- if (vcc->pop)
- vcc->pop(vcc, skb);
- else
- dev_kfree_skb(skb);
- return -ENOMEM;
- }
- memcpy(entry->data, skb_data, skb_len);
- if (skb_len < tx_len)
- memset(entry->data + skb_len, 0x00, tx_len - skb_len);
-
- tpd->tsd[ 0 ].buffer = fore200e->bus->dma_map(fore200e, entry->data, tx_len, FORE200E_DMA_TODEVICE);
- }
- else {
- entry->data = NULL;
- tpd->tsd[ 0 ].buffer = fore200e->bus->dma_map(fore200e, skb_data, tx_len, FORE200E_DMA_TODEVICE);
- }
- tpd->tsd[ 0 ].length = tx_len;
- FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX);
- txq->txing++;
- tasklet_enable(&fore200e->tasklet);
- /* ensure DMA synchronisation */
- fore200e->bus->dma_sync(fore200e, tpd->tsd[ 0 ].buffer, tpd->tsd[ 0 ].length, FORE200E_DMA_TODEVICE);
-
- DPRINTK(3, "tx on %d.%d.%d:%d, len = %u (%u)n",
- vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal),
- tpd->tsd[0].length, skb_len);
- if (skb_len < fore200e_vcc->tx_min_pdu)
- fore200e_vcc->tx_min_pdu = skb_len;
- if (skb_len > fore200e_vcc->tx_max_pdu)
- fore200e_vcc->tx_max_pdu = skb_len;
-
- entry->vcc = vcc;
- entry->skb = skb;
- /* set tx rate control information */
- tpd->rate.data_cells = fore200e_vcc->rate.data_cells;
- tpd->rate.idle_cells = fore200e_vcc->rate.idle_cells;
- if (cell_header) {
- tpd->atm_header.clp = (*cell_header & ATM_HDR_CLP);
- tpd->atm_header.plt = (*cell_header & ATM_HDR_PTI_MASK) >> ATM_HDR_PTI_SHIFT;
- tpd->atm_header.vci = (*cell_header & ATM_HDR_VCI_MASK) >> ATM_HDR_VCI_SHIFT;
- tpd->atm_header.vpi = (*cell_header & ATM_HDR_VPI_MASK) >> ATM_HDR_VPI_SHIFT;
- tpd->atm_header.gfc = (*cell_header & ATM_HDR_GFC_MASK) >> ATM_HDR_GFC_SHIFT;
- }
- else {
- /* set the ATM header, common to all cells conveying the PDU */
- tpd->atm_header.clp = 0;
- tpd->atm_header.plt = 0;
- tpd->atm_header.vci = vcc->vci;
- tpd->atm_header.vpi = vcc->vpi;
- tpd->atm_header.gfc = 0;
- }
- tpd->spec.length = tx_len;
- tpd->spec.nseg = 1;
- tpd->spec.aal = fore200e_atm2fore_aal(vcc->qos.aal);
- #ifdef FORE200E_SYNC_SEND
- tpd->spec.intr = 0;
- #else
- tpd->spec.intr = 1;
- #endif
- tpd_haddr.size = sizeof(struct tpd) / 32; /* size is expressed in 32 byte blocks */
- tpd_haddr.pad = 0;
- tpd_haddr.haddr = entry->tpd_dma >> 5; /* shift the address, as we are in a bitfield */
- *entry->status = STATUS_PENDING;
- fore200e->bus->write(*(u32*)&tpd_haddr, (u32*)&entry->cp_entry->tpd_haddr);
- #ifdef FORE200E_SYNC_SEND
- {
- int ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 10);
- fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length,
- FORE200E_DMA_TODEVICE);
-
- /* free tmp copy of misaligned data */
- if (entry->data)
- kfree(entry->data);
- /* notify tx completion */
- if (vcc->pop)
- vcc->pop(vcc, skb);
- else
- dev_kfree_skb(skb);
- if (ok == 0) {
- printk(FORE200E "synchronous tx on %d:%d:%d failedn", vcc->itf, vcc->vpi, vcc->vci);
- atomic_inc(&entry->vcc->stats->tx_err);
- return -EIO;
- }
- atomic_inc(&entry->vcc->stats->tx);
- DPRINTK(3, "synchronous tx on %d:%d:%d succeededn", vcc->itf, vcc->vpi, vcc->vci);
- }
- #endif
- return 0;
- }
- static int
- fore200e_getstats(struct fore200e* fore200e)
- {
- struct host_cmdq* cmdq = &fore200e->host_cmdq;
- struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ];
- struct stats_opcode opcode;
- int ok;
- u32 stats_dma_addr;
- if (fore200e->stats == NULL) {
- fore200e->stats = fore200e_kmalloc(sizeof(struct stats), GFP_KERNEL | GFP_DMA);
- if (fore200e->stats == NULL)
- return -ENOMEM;
- }
-
- stats_dma_addr = fore200e->bus->dma_map(fore200e, fore200e->stats, sizeof(struct stats), FORE200E_DMA_FROMDEVICE);
-
- FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);
- opcode.opcode = OPCODE_GET_STATS;
- opcode.pad = 0;
- fore200e->bus->write(stats_dma_addr, &entry->cp_entry->cmd.stats_block.stats_haddr);
-
- *entry->status = STATUS_PENDING;
- fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.stats_block.opcode);
- ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400);
- *entry->status = STATUS_FREE;
- fore200e->bus->dma_unmap(fore200e, stats_dma_addr, sizeof(struct stats), FORE200E_DMA_FROMDEVICE);
-
- if (ok == 0) {
- printk(FORE200E "unable to get statistics from device %sn", fore200e->name);
- return -EIO;
- }
- return 0;
- }
- static int
- fore200e_getsockopt (struct atm_vcc* vcc, int level, int optname, void* optval, int optlen)
- {
- // struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
- DPRINTK(2, "getsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %dn",
- vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen);
- return -EINVAL;
- }
- static int
- fore200e_setsockopt(struct atm_vcc* vcc, int level, int optname, void* optval, int optlen)
- {
- // struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
-
- DPRINTK(2, "setsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %dn",
- vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen);
-
- return -EINVAL;
- }
- #if 0 /* currently unused */
- static int
- fore200e_get_oc3(struct fore200e* fore200e, struct oc3_regs* regs)
- {
- struct host_cmdq* cmdq = &fore200e->host_cmdq;
- struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ];
- struct oc3_opcode opcode;
- int ok;
- u32 oc3_regs_dma_addr;
- oc3_regs_dma_addr = fore200e->bus->dma_map(fore200e, regs, sizeof(struct oc3_regs), FORE200E_DMA_FROMDEVICE);
- FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);
- opcode.opcode = OPCODE_GET_OC3;
- opcode.reg = 0;
- opcode.value = 0;
- opcode.mask = 0;
- fore200e->bus->write(oc3_regs_dma_addr, &entry->cp_entry->cmd.oc3_block.regs_haddr);
-
- *entry->status = STATUS_PENDING;
- fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.oc3_block.opcode);
- ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400);
- *entry->status = STATUS_FREE;
- fore200e->bus->dma_unmap(fore200e, oc3_regs_dma_addr, sizeof(struct oc3_regs), FORE200E_DMA_FROMDEVICE);
-
- if (ok == 0) {
- printk(FORE200E "unable to get OC-3 regs of device %sn", fore200e->name);
- return -EIO;
- }
- return 0;
- }
- #endif
- static int
- fore200e_set_oc3(struct fore200e* fore200e, u32 reg, u32 value, u32 mask)
- {
- struct host_cmdq* cmdq = &fore200e->host_cmdq;
- struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ];
- struct oc3_opcode opcode;
- int ok;
- FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD);
- opcode.opcode = OPCODE_SET_OC3;
- opcode.reg = reg;
- opcode.value = value;
- opcode.mask = mask;
- fore200e->bus->write(0, &entry->cp_entry->cmd.oc3_block.regs_haddr);
-
- *entry->status = STATUS_PENDING;
- fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.oc3_block.opcode);
- ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400);
- *entry->status = STATUS_FREE;
- if (ok == 0) {
- printk(FORE200E "unable to set OC-3 reg 0x%02x of device %sn", reg, fore200e->name);
- return -EIO;
- }
- return 0;
- }
- static int
- fore200e_setloop(struct fore200e* fore200e, int loop_mode)
- {
- u32 mct_value, mct_mask;
- int error;
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- switch (loop_mode) {
- case ATM_LM_NONE:
- mct_value = 0;
- mct_mask = SUNI_MCT_DLE | SUNI_MCT_LLE;
- break;
-
- case ATM_LM_LOC_PHY:
- mct_value = mct_mask = SUNI_MCT_DLE;
- break;
- case ATM_LM_RMT_PHY:
- mct_value = mct_mask = SUNI_MCT_LLE;
- break;
- default:
- return -EINVAL;
- }
- error = fore200e_set_oc3(fore200e, SUNI_MCT, mct_value, mct_mask);
- if ( error == 0)
- fore200e->loop_mode = loop_mode;
- return error;
- }
- static inline unsigned int
- fore200e_swap(unsigned int in)
- {
- #if defined(__LITTLE_ENDIAN)
- return swab32(in);
- #else
- return in;
- #endif
- }
- static int
- fore200e_fetch_stats(struct fore200e* fore200e, struct sonet_stats* arg)
- {
- struct sonet_stats tmp;
- if (fore200e_getstats(fore200e) < 0)
- return -EIO;
- tmp.section_bip = fore200e_swap(fore200e->stats->oc3.section_bip8_errors);
- tmp.line_bip = fore200e_swap(fore200e->stats->oc3.line_bip24_errors);
- tmp.path_bip = fore200e_swap(fore200e->stats->oc3.path_bip8_errors);
- tmp.line_febe = fore200e_swap(fore200e->stats->oc3.line_febe_errors);
- tmp.path_febe = fore200e_swap(fore200e->stats->oc3.path_febe_errors);
- tmp.corr_hcs = fore200e_swap(fore200e->stats->oc3.corr_hcs_errors);
- tmp.uncorr_hcs = fore200e_swap(fore200e->stats->oc3.ucorr_hcs_errors);
- tmp.tx_cells = fore200e_swap(fore200e->stats->aal0.cells_transmitted) +
- fore200e_swap(fore200e->stats->aal34.cells_transmitted) +
- fore200e_swap(fore200e->stats->aal5.cells_transmitted);
- tmp.rx_cells = fore200e_swap(fore200e->stats->aal0.cells_received) +
- fore200e_swap(fore200e->stats->aal34.cells_received) +
- fore200e_swap(fore200e->stats->aal5.cells_received);
- if (arg)
- return copy_to_user(arg, &tmp, sizeof(struct sonet_stats)) ? -EFAULT : 0;
-
- return 0;
- }
- static int
- fore200e_ioctl(struct atm_dev* dev, unsigned int cmd, void* arg)
- {
- struct fore200e* fore200e = FORE200E_DEV(dev);
-
- DPRINTK(2, "ioctl cmd = 0x%x (%u), arg = 0x%p (%lu)n", cmd, cmd, arg, (unsigned long)arg);
- switch (cmd) {
- case SONET_GETSTAT:
- return fore200e_fetch_stats(fore200e, (struct sonet_stats*)arg);
- case SONET_GETDIAG:
- return put_user(0, (int*)arg) ? -EFAULT : 0;
- case ATM_SETLOOP:
- return fore200e_setloop(fore200e, (int)(unsigned long)arg);
- case ATM_GETLOOP:
- return put_user(fore200e->loop_mode, (int*)arg) ? -EFAULT : 0;
- case ATM_QUERYLOOP:
- return put_user(ATM_LM_LOC_PHY | ATM_LM_RMT_PHY, (int*)arg) ? -EFAULT : 0;
- }
- return -ENOSYS; /* not implemented */
- }
- static int
- fore200e_change_qos(struct atm_vcc* vcc,struct atm_qos* qos, int flags)
- {
- struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc);
- struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
- DPRINTK(2, "change_qos %d.%d.%d, "
- "(tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; "
- "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d), flags = 0x%xn"
- "available_cell_rate = %u",
- vcc->itf, vcc->vpi, vcc->vci,
- fore200e_traffic_class[ qos->txtp.traffic_class ],
- qos->txtp.min_pcr, qos->txtp.max_pcr, qos->txtp.max_cdv, qos->txtp.max_sdu,
- fore200e_traffic_class[ qos->rxtp.traffic_class ],
- qos->rxtp.min_pcr, qos->rxtp.max_pcr, qos->rxtp.max_cdv, qos->rxtp.max_sdu,
- flags, fore200e->available_cell_rate);
- if ((qos->txtp.traffic_class == ATM_CBR) && (qos->txtp.max_pcr > 0)) {
- down(&fore200e->rate_sf);
- if (fore200e->available_cell_rate + vcc->qos.txtp.max_pcr < qos->txtp.max_pcr) {
- up(&fore200e->rate_sf);
- return -EAGAIN;
- }
- fore200e->available_cell_rate += vcc->qos.txtp.max_pcr;
- fore200e->available_cell_rate -= qos->txtp.max_pcr;
- up(&fore200e->rate_sf);
-
- memcpy(&vcc->qos, qos, sizeof(struct atm_qos));
-
- /* update rate control parameters */
- fore200e_rate_ctrl(qos, &fore200e_vcc->rate);
- set_bit(ATM_VF_HASQOS, &vcc->flags);
- return 0;
- }
-
- return -EINVAL;
- }
-
- static int __init
- fore200e_irq_request(struct fore200e* fore200e)
- {
- if (request_irq(fore200e->irq, fore200e_interrupt, SA_SHIRQ, fore200e->name, fore200e->atm_dev) < 0) {
- printk(FORE200E "unable to reserve IRQ %s for device %sn",
- fore200e_irq_itoa(fore200e->irq), fore200e->name);
- return -EBUSY;
- }
- printk(FORE200E "IRQ %s reserved for device %sn",
- fore200e_irq_itoa(fore200e->irq), fore200e->name);
- tasklet_init(&fore200e->tasklet, fore200e_tasklet, (unsigned long)fore200e);
- fore200e->state = FORE200E_STATE_IRQ;
- return 0;
- }
- static int __init
- fore200e_get_esi(struct fore200e* fore200e)
- {
- struct prom_data* prom = fore200e_kmalloc(sizeof(struct prom_data), GFP_KERNEL | GFP_DMA);
- int ok, i;
- if (!prom)
- return -ENOMEM;
- ok = fore200e->bus->prom_read(fore200e, prom);
- if (ok < 0) {
- fore200e_kfree(prom);
- return -EBUSY;
- }
-
- printk(FORE200E "device %s, rev. %c, S/N: %d, ESI: %02x:%02x:%02x:%02x:%02x:%02xn",
- fore200e->name,
- (prom->hw_revision & 0xFF) + '@', /* probably meaningless with SBA boards */
- prom->serial_number & 0xFFFF,
- prom->mac_addr[ 2 ], prom->mac_addr[ 3 ], prom->mac_addr[ 4 ],
- prom->mac_addr[ 5 ], prom->mac_addr[ 6 ], prom->mac_addr[ 7 ]);
-
- for (i = 0; i < ESI_LEN; i++) {
- fore200e->esi[ i ] = fore200e->atm_dev->esi[ i ] = prom->mac_addr[ i + 2 ];
- }
-
- fore200e_kfree(prom);
- return 0;
- }
- static int __init
- fore200e_alloc_rx_buf(struct fore200e* fore200e)
- {
- int scheme, magn, nbr, size, i;
- struct host_bsq* bsq;
- struct buffer* buffer;
- for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) {
- for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) {
- bsq = &fore200e->host_bsq[ scheme ][ magn ];
- nbr = fore200e_rx_buf_nbr[ scheme ][ magn ];
- size = fore200e_rx_buf_size[ scheme ][ magn ];
- DPRINTK(2, "rx buffers %d / %d are being allocatedn", scheme, magn);
- /* allocate the array of receive buffers */
- buffer = bsq->buffer = fore200e_kmalloc(nbr * sizeof(struct buffer), GFP_KERNEL);
- if (buffer == NULL)
- return -ENOMEM;
- for (i = 0; i < nbr; i++) {
- buffer[ i ].scheme = scheme;
- buffer[ i ].magn = magn;
- /* allocate the receive buffer body */
- if (fore200e_chunk_alloc(fore200e,
- &buffer[ i ].data, size, fore200e->bus->buffer_alignment,
- FORE200E_DMA_FROMDEVICE) < 0) {
-
- while (i > 0)
- fore200e_chunk_free(fore200e, &buffer[ --i ].data);
- fore200e_kfree(buffer);
-
- return -ENOMEM;
- }
- }
- /* set next free buffer index */
- bsq->free = 0;
- }
- }
- fore200e->state = FORE200E_STATE_ALLOC_BUF;
- return 0;
- }
- static int __init
- fore200e_init_bs_queue(struct fore200e* fore200e)
- {
- int scheme, magn, i;
- struct host_bsq* bsq;
- struct cp_bsq_entry* cp_entry;
- for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) {
- for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) {
- DPRINTK(2, "buffer supply queue %d / %d is being initializedn", scheme, magn);
- bsq = &fore200e->host_bsq[ scheme ][ magn ];
- /* allocate and align the array of status words */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &bsq->status,
- sizeof(enum status),
- QUEUE_SIZE_BS,
- fore200e->bus->status_alignment) < 0) {
- return -ENOMEM;
- }
- /* allocate and align the array of receive buffer descriptors */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &bsq->rbd_block,
- sizeof(struct rbd_block),
- QUEUE_SIZE_BS,
- fore200e->bus->descr_alignment) < 0) {
-
- fore200e->bus->dma_chunk_free(fore200e, &bsq->status);
- return -ENOMEM;
- }
-
- /* get the base address of the cp resident buffer supply queue entries */
- cp_entry = (struct cp_bsq_entry*)(fore200e->virt_base +
- fore200e->bus->read(&fore200e->cp_queues->cp_bsq[ scheme ][ magn ]));
-
- /* fill the host resident and cp resident buffer supply queue entries */
- for (i = 0; i < QUEUE_SIZE_BS; i++) {
-
- bsq->host_entry[ i ].status =
- FORE200E_INDEX(bsq->status.align_addr, enum status, i);
- bsq->host_entry[ i ].rbd_block =
- FORE200E_INDEX(bsq->rbd_block.align_addr, struct rbd_block, i);
- bsq->host_entry[ i ].rbd_block_dma =
- FORE200E_DMA_INDEX(bsq->rbd_block.dma_addr, struct rbd_block, i);
- bsq->host_entry[ i ].cp_entry = &cp_entry[ i ];
-
- *bsq->host_entry[ i ].status = STATUS_FREE;
-
- fore200e->bus->write(FORE200E_DMA_INDEX(bsq->status.dma_addr, enum status, i),
- &cp_entry[ i ].status_haddr);
- }
- }
- }
- fore200e->state = FORE200E_STATE_INIT_BSQ;
- return 0;
- }
- static int __init
- fore200e_init_rx_queue(struct fore200e* fore200e)
- {
- struct host_rxq* rxq = &fore200e->host_rxq;
- struct cp_rxq_entry* cp_entry;
- int i;
- DPRINTK(2, "receive queue is being initializedn");
- /* allocate and align the array of status words */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &rxq->status,
- sizeof(enum status),
- QUEUE_SIZE_RX,
- fore200e->bus->status_alignment) < 0) {
- return -ENOMEM;
- }
- /* allocate and align the array of receive PDU descriptors */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &rxq->rpd,
- sizeof(struct rpd),
- QUEUE_SIZE_RX,
- fore200e->bus->descr_alignment) < 0) {
-
- fore200e->bus->dma_chunk_free(fore200e, &rxq->status);
- return -ENOMEM;
- }
- /* get the base address of the cp resident rx queue entries */
- cp_entry = (struct cp_rxq_entry*)(fore200e->virt_base +
- fore200e->bus->read(&fore200e->cp_queues->cp_rxq));
- /* fill the host resident and cp resident rx entries */
- for (i=0; i < QUEUE_SIZE_RX; i++) {
-
- rxq->host_entry[ i ].status =
- FORE200E_INDEX(rxq->status.align_addr, enum status, i);
- rxq->host_entry[ i ].rpd =
- FORE200E_INDEX(rxq->rpd.align_addr, struct rpd, i);
- rxq->host_entry[ i ].rpd_dma =
- FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i);
- rxq->host_entry[ i ].cp_entry = &cp_entry[ i ];
- *rxq->host_entry[ i ].status = STATUS_FREE;
- fore200e->bus->write(FORE200E_DMA_INDEX(rxq->status.dma_addr, enum status, i),
- &cp_entry[ i ].status_haddr);
- fore200e->bus->write(FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i),
- &cp_entry[ i ].rpd_haddr);
- }
- /* set the head entry of the queue */
- rxq->head = 0;
- fore200e->state = FORE200E_STATE_INIT_RXQ;
- return 0;
- }
- static int __init
- fore200e_init_tx_queue(struct fore200e* fore200e)
- {
- struct host_txq* txq = &fore200e->host_txq;
- struct cp_txq_entry* cp_entry;
- int i;
- DPRINTK(2, "transmit queue is being initializedn");
- /* allocate and align the array of status words */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &txq->status,
- sizeof(enum status),
- QUEUE_SIZE_TX,
- fore200e->bus->status_alignment) < 0) {
- return -ENOMEM;
- }
- /* allocate and align the array of transmit PDU descriptors */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &txq->tpd,
- sizeof(struct tpd),
- QUEUE_SIZE_TX,
- fore200e->bus->descr_alignment) < 0) {
-
- fore200e->bus->dma_chunk_free(fore200e, &txq->status);
- return -ENOMEM;
- }
- /* get the base address of the cp resident tx queue entries */
- cp_entry = (struct cp_txq_entry*)(fore200e->virt_base +
- fore200e->bus->read(&fore200e->cp_queues->cp_txq));
- /* fill the host resident and cp resident tx entries */
- for (i=0; i < QUEUE_SIZE_TX; i++) {
-
- txq->host_entry[ i ].status =
- FORE200E_INDEX(txq->status.align_addr, enum status, i);
- txq->host_entry[ i ].tpd =
- FORE200E_INDEX(txq->tpd.align_addr, struct tpd, i);
- txq->host_entry[ i ].tpd_dma =
- FORE200E_DMA_INDEX(txq->tpd.dma_addr, struct tpd, i);
- txq->host_entry[ i ].cp_entry = &cp_entry[ i ];
- *txq->host_entry[ i ].status = STATUS_FREE;
-
- fore200e->bus->write(FORE200E_DMA_INDEX(txq->status.dma_addr, enum status, i),
- &cp_entry[ i ].status_haddr);
-
- /* although there is a one-to-one mapping of tx queue entries and tpds,
- we do not write here the DMA (physical) base address of each tpd into
- the related cp resident entry, because the cp relies on this write
- operation to detect that a new pdu has been submitted for tx */
- }
- /* set the head entry of the queue */
- txq->head = 0;
- fore200e->state = FORE200E_STATE_INIT_TXQ;
- return 0;
- }
- static int __init
- fore200e_init_cmd_queue(struct fore200e* fore200e)
- {
- struct host_cmdq* cmdq = &fore200e->host_cmdq;
- struct cp_cmdq_entry* cp_entry;
- int i;
- DPRINTK(2, "command queue is being initializedn");
- /* allocate and align the array of status words */
- if (fore200e->bus->dma_chunk_alloc(fore200e,
- &cmdq->status,
- sizeof(enum status),
- QUEUE_SIZE_CMD,
- fore200e->bus->status_alignment) < 0) {
- return -ENOMEM;
- }
-
- /* get the base address of the cp resident cmd queue entries */
- cp_entry = (struct cp_cmdq_entry*)(fore200e->virt_base +
- fore200e->bus->read(&fore200e->cp_queues->cp_cmdq));
- /* fill the host resident and cp resident cmd entries */
- for (i=0; i < QUEUE_SIZE_CMD; i++) {
-
- cmdq->host_entry[ i ].status =
- FORE200E_INDEX(cmdq->status.align_addr, enum status, i);
- cmdq->host_entry[ i ].cp_entry = &cp_entry[ i ];
- *cmdq->host_entry[ i ].status = STATUS_FREE;
- fore200e->bus->write(FORE200E_DMA_INDEX(cmdq->status.dma_addr, enum status, i),
- &cp_entry[ i ].status_haddr);
- }
- /* set the head entry of the queue */
- cmdq->head = 0;
- fore200e->state = FORE200E_STATE_INIT_CMDQ;
- return 0;
- }
- static void __init
- fore200e_param_bs_queue(struct fore200e* fore200e,
- enum buffer_scheme scheme, enum buffer_magn magn,
- int queue_length, int pool_size, int supply_blksize)
- {
- struct bs_spec* bs_spec = &fore200e->cp_queues->init.bs_spec[ scheme ][ magn ];
- /* dumb value; the firmware doesn't allow us to activate a VC while
- selecting a buffer scheme with zero-sized rbd pools */
- if (pool_size == 0)
- pool_size = 64;
- fore200e->bus->write(queue_length, &bs_spec->queue_length);
- fore200e->bus->write(fore200e_rx_buf_size[ scheme ][ magn ], &bs_spec->buffer_size);
- fore200e->bus->write(pool_size, &bs_spec->pool_size);
- fore200e->bus->write(supply_blksize, &bs_spec->supply_blksize);
- }
- static int __init
- fore200e_initialize(struct fore200e* fore200e)
- {
- struct cp_queues* cpq;
- int ok, scheme, magn;
- DPRINTK(2, "device %s being initializedn", fore200e->name);
- init_MUTEX(&fore200e->rate_sf);
-
- cpq = fore200e->cp_queues = (struct cp_queues*) (fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET);
- /* enable cp to host interrupts */
- fore200e->bus->write(1, &cpq->imask);
- if (fore200e->bus->irq_enable)
- fore200e->bus->irq_enable(fore200e);
-
- fore200e->bus->write(NBR_CONNECT, &cpq->init.num_connect);
- fore200e->bus->write(QUEUE_SIZE_CMD, &cpq->init.cmd_queue_len);
- fore200e->bus->write(QUEUE_SIZE_RX, &cpq->init.rx_queue_len);
- fore200e->bus->write(QUEUE_SIZE_TX, &cpq->init.tx_queue_len);
- fore200e->bus->write(RSD_EXTENSION, &cpq->init.rsd_extension);
- fore200e->bus->write(TSD_EXTENSION, &cpq->init.tsd_extension);
- for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++)
- for (magn = 0; magn < BUFFER_MAGN_NBR; magn++)
- fore200e_param_bs_queue(fore200e, scheme, magn,
- QUEUE_SIZE_BS,
- fore200e_rx_buf_nbr[ scheme ][ magn ],
- RBD_BLK_SIZE);
- /* issue the initialize command */
- fore200e->bus->write(STATUS_PENDING, &cpq->init.status);
- fore200e->bus->write(OPCODE_INITIALIZE, &cpq->init.opcode);
- ok = fore200e_io_poll(fore200e, &cpq->init.status, STATUS_COMPLETE, 3000);
- if (ok == 0) {
- printk(FORE200E "device %s initialization failedn", fore200e->name);
- return -ENODEV;
- }
- printk(FORE200E "device %s initializedn", fore200e->name);
- fore200e->state = FORE200E_STATE_INITIALIZE;
- return 0;
- }
- static void __init
- fore200e_monitor_putc(struct fore200e* fore200e, char c)
- {
- struct cp_monitor* monitor = fore200e->cp_monitor;
- #if 0
- printk("%c", c);
- #endif
- fore200e->bus->write(((u32) c) | FORE200E_CP_MONITOR_UART_AVAIL, &monitor->soft_uart.send);
- }
- static int __init
- fore200e_monitor_getc(struct fore200e* fore200e)
- {
- struct cp_monitor* monitor = fore200e->cp_monitor;
- unsigned long timeout = jiffies + MSECS(50);
- int c;
- while (time_before(jiffies, timeout)) {
- c = (int) fore200e->bus->read(&monitor->soft_uart.recv);
- if (c & FORE200E_CP_MONITOR_UART_AVAIL) {
- fore200e->bus->write(FORE200E_CP_MONITOR_UART_FREE, &monitor->soft_uart.recv);
- #if 0
- printk("%c", c & 0xFF);
- #endif
- return c & 0xFF;
- }
- }
- return -1;
- }
- static void __init
- fore200e_monitor_puts(struct fore200e* fore200e, char* str)
- {
- while(*str) {
- /* the i960 monitor doesn't accept any new character if it has something to say */
- while (fore200e_monitor_getc(fore200e) >= 0);
-
- fore200e_monitor_putc(fore200e, *str++);
- }
- while (fore200e_monitor_getc(fore200e) >= 0);
- }
- static int __init
- fore200e_start_fw(struct fore200e* fore200e)
- {
- int ok;
- char cmd[ 48 ];
- struct fw_header* fw_header = (struct fw_header*) fore200e->bus->fw_data;
- DPRINTK(2, "device %s firmware being startedn", fore200e->name);
- sprintf(cmd, "rgo %xr", le32_to_cpu(fw_header->start_offset));
- fore200e_monitor_puts(fore200e, cmd);
- ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_CP_RUNNING, 1000);
- if (ok == 0) {
- printk(FORE200E "device %s firmware didn't startn", fore200e->name);
- return -ENODEV;
- }
- printk(FORE200E "device %s firmware startedn", fore200e->name);
- fore200e->state = FORE200E_STATE_START_FW;
- return 0;
- }
- static int __init
- fore200e_load_fw(struct fore200e* fore200e)
- {
- u32* fw_data = (u32*) fore200e->bus->fw_data;
- u32 fw_size = (u32) *fore200e->bus->fw_size / sizeof(u32);
- struct fw_header* fw_header = (struct fw_header*) fw_data;
- u32* load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset);
- DPRINTK(2, "device %s firmware being loaded at 0x%p (%d words)n",
- fore200e->name, load_addr, fw_size);
- #if 1
- if (le32_to_cpu(fw_header->magic) != FW_HEADER_MAGIC) {
- printk(FORE200E "corrupted %s firmware imagen", fore200e->bus->model_name);
- return -ENODEV;
- }
- #endif
- for (; fw_size--; fw_data++, load_addr++)
- fore200e->bus->write(le32_to_cpu(*fw_data), load_addr);
- fore200e->state = FORE200E_STATE_LOAD_FW;
- return 0;
- }
- static int __init
- fore200e_register(struct fore200e* fore200e)
- {
- struct atm_dev* atm_dev;
- DPRINTK(2, "device %s being registeredn", fore200e->name);
- atm_dev = atm_dev_register(fore200e->bus->proc_name, &fore200e_ops, -1,
- NULL);
- if (atm_dev == NULL) {
- printk(FORE200E "unable to register device %sn", fore200e->name);
- return -ENODEV;
- }
- FORE200E_DEV(atm_dev) = fore200e;
- fore200e->atm_dev = atm_dev;
- atm_dev->ci_range.vpi_bits = 8;
- atm_dev->ci_range.vci_bits = 10;
- fore200e->available_cell_rate = ATM_OC3_PCR;
- fore200e->state = FORE200E_STATE_REGISTER;
- return 0;
- }
- static int __init
- fore200e_init(struct fore200e* fore200e)
- {
- if (fore200e_register(fore200e) < 0)
- return -ENODEV;
-
- if (fore200e->bus->configure(fore200e) < 0)
- return -ENODEV;
- if (fore200e->bus->map(fore200e) < 0)
- return -ENODEV;
- if (fore200e_reset(fore200e, 1) < 0)
- return -ENODEV;
- if (fore200e_load_fw(fore200e) < 0)
- return -ENODEV;
- if (fore200e_start_fw(fore200e) < 0)
- return -ENODEV;
- if (fore200e_initialize(fore200e) < 0)
- return -ENODEV;
- if (fore200e_init_cmd_queue(fore200e) < 0)
- return -ENOMEM;
- if (fore200e_init_tx_queue(fore200e) < 0)
- return -ENOMEM;
- if (fore200e_init_rx_queue(fore200e) < 0)
- return -ENOMEM;
- if (fore200e_init_bs_queue(fore200e) < 0)
- return -ENOMEM;
- if (fore200e_alloc_rx_buf(fore200e) < 0)
- return -ENOMEM;
- if (fore200e_get_esi(fore200e) < 0)
- return -EIO;
- if (fore200e_irq_request(fore200e) < 0)
- return -EBUSY;
- fore200e_supply(fore200e);
-
- /* all done, board initialization is now complete */
- fore200e->state = FORE200E_STATE_COMPLETE;
- return 0;
- }
- int __init
- fore200e_detect(void)
- {
- const struct fore200e_bus* bus;
- struct fore200e* fore200e;
- int index, link;
- printk(FORE200E "FORE Systems 200E-series driver - version " FORE200E_VERSION "n");
- /* for each configured bus interface */
- for (link = 0, bus = fore200e_bus; bus->model_name; bus++) {
- /* detect all boards present on that bus */
- for (index = 0; (fore200e = bus->detect(bus, index)); index++) {
-
- printk(FORE200E "device %s found at 0x%lx, IRQ %sn",
- fore200e->bus->model_name,
- fore200e->phys_base, fore200e_irq_itoa(fore200e->irq));
- sprintf(fore200e->name, "%s-%d", bus->model_name, index);
- if (fore200e_init(fore200e) < 0) {
- fore200e_shutdown(fore200e);
- break;
- }
- link++;
- fore200e->next = fore200e_boards;
- fore200e_boards = fore200e;
- }
- }
- return link;
- }
- #ifdef MODULE
- static void
- fore200e_cleanup(struct fore200e** head)
- {
- struct fore200e* fore200e = *head;
- fore200e_shutdown(fore200e);
- *head = fore200e->next;
- kfree(fore200e);
- }
- #endif
- static int
- fore200e_proc_read(struct atm_dev *dev,loff_t* pos,char* page)
- {
- struct fore200e* fore200e = FORE200E_DEV(dev);
- int len, left = *pos;
- if (!left--) {
- if (fore200e_getstats(fore200e) < 0)
- return -EIO;
- len = sprintf(page,"n"
- " device:n"
- " internal name:tt%sn", fore200e->name);
- /* print bus-specific information */
- if (fore200e->bus->proc_read)
- len += fore200e->bus->proc_read(fore200e, page + len);
-
- len += sprintf(page + len,
- " interrupt line:tt%sn"
- " physical base address:t0x%pn"
- " virtual base address:t0x%pn"
- " factory address (ESI):t%02x:%02x:%02x:%02x:%02x:%02xn"
- " board serial number:tt%dnn",
- fore200e_irq_itoa(fore200e->irq),
- (void*)fore200e->phys_base,
- (void*)fore200e->virt_base,
- fore200e->esi[0], fore200e->esi[1], fore200e->esi[2],
- fore200e->esi[3], fore200e->esi[4], fore200e->esi[5],
- fore200e->esi[4] * 256 + fore200e->esi[5]);
- return len;
- }
- if (!left--)
- return sprintf(page,
- " supplied small bufs (1):t%dn"
- " supplied large bufs (1):t%dn"
- " supplied small bufs (2):t%dn"
- " supplied large bufs (2):t%dn",
- fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_SMALL ].count,
- fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_LARGE ].count,
- fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_SMALL ].count,
- fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_LARGE ].count);
- if (!left--) {
- u32 hb = fore200e->bus->read(&fore200e->cp_queues->heartbeat);
- len = sprintf(page,"nn"
- " cell processor:n"
- " heartbeat state:tt");
-
- if (hb >> 16 != 0xDEAD)
- len += sprintf(page + len, "0x%08xn", hb);
- else
- len += sprintf(page + len, "*** FATAL ERROR %04x ***n", hb & 0xFFFF);
- return len;
- }
- if (!left--) {
- static const char* media_name[] = {
- "unshielded twisted pair",
- "multimode optical fiber ST",
- "multimode optical fiber SC",
- "single-mode optical fiber ST",
- "single-mode optical fiber SC",
- "unknown"
- };
- static const char* oc3_mode[] = {
- "normal operation",
- "diagnostic loopback",
- "line loopback",
- "unknown"
- };
- u32 fw_release = fore200e->bus->read(&fore200e->cp_queues->fw_release);
- u32 mon960_release = fore200e->bus->read(&fore200e->cp_queues->mon960_release);
- u32 oc3_revision = fore200e->bus->read(&fore200e->cp_queues->oc3_revision);
- u32 media_index = FORE200E_MEDIA_INDEX(fore200e->bus->read(&fore200e->cp_queues->media_type));
- u32 oc3_index;
- if (media_index < 0 || media_index > 4)
- media_index = 5;
-
- switch (fore200e->loop_mode) {
- case ATM_LM_NONE: oc3_index = 0;
- break;
- case ATM_LM_LOC_PHY: oc3_index = 1;
- break;
- case ATM_LM_RMT_PHY: oc3_index = 2;
- break;
- default: oc3_index = 3;
- }
- return sprintf(page,
- " firmware release:tt%d.%d.%dn"
- " monitor release:tt%d.%dn"
- " media type:ttt%sn"
- " OC-3 revision:tt0x%xn"
- " OC-3 mode:ttt%s",
- fw_release >> 16, fw_release << 16 >> 24, fw_release << 24 >> 24,
- mon960_release >> 16, mon960_release << 16 >> 16,
- media_name[ media_index ],
- oc3_revision,
- oc3_mode[ oc3_index ]);
- }
- if (!left--) {
- struct cp_monitor* cp_monitor = fore200e->cp_monitor;
- return sprintf(page,
- "nn"
- " monitor:n"
- " version number:tt%dn"
- " boot status word:tt0x%08xn",
- fore200e->bus->read(&cp_monitor->mon_version),
- fore200e->bus->read(&cp_monitor->bstat));
- }
- if (!left--)
- return sprintf(page,
- "n"
- " device statistics:n"
- " 4b5b:n"
- " crc_header_errors:tt%10un"
- " framing_errors:tt%10un",
- fore200e_swap(fore200e->stats->phy.crc_header_errors),
- fore200e_swap(fore200e->stats->phy.framing_errors));
-
- if (!left--)
- return sprintf(page, "n"
- " OC-3:n"
- " section_bip8_errors:t%10un"
- " path_bip8_errors:tt%10un"
- " line_bip24_errors:tt%10un"
- " line_febe_errors:tt%10un"
- " path_febe_errors:tt%10un"
- " corr_hcs_errors:tt%10un"
- " ucorr_hcs_errors:tt%10un",
- fore200e_swap(fore200e->stats->oc3.section_bip8_errors),
- fore200e_swap(fore200e->stats->oc3.path_bip8_errors),
- fore200e_swap(fore200e->stats->oc3.line_bip24_errors),
- fore200e_swap(fore200e->stats->oc3.line_febe_errors),
- fore200e_swap(fore200e->stats->oc3.path_febe_errors),
- fore200e_swap(fore200e->stats->oc3.corr_hcs_errors),
- fore200e_swap(fore200e->stats->oc3.ucorr_hcs_errors));
- if (!left--)
- return sprintf(page,"n"
- " ATM:tttt cellsn"
- " TX:ttt%10un"
- " RX:ttt%10un"
- " vpi out of range:tt%10un"
- " vpi no conn:tt%10un"
- " vci out of range:tt%10un"
- " vci no conn:tt%10un",
- fore200e_swap(fore200e->stats->atm.cells_transmitted),
- fore200e_swap(fore200e->stats->atm.cells_received),
- fore200e_swap(fore200e->stats->atm.vpi_bad_range),
- fore200e_swap(fore200e->stats->atm.vpi_no_conn),
- fore200e_swap(fore200e->stats->atm.vci_bad_range),
- fore200e_swap(fore200e->stats->atm.vci_no_conn));
-
- if (!left--)
- return sprintf(page,"n"
- " AAL0:ttt cellsn"
- " TX:ttt%10un"
- " RX:ttt%10un"
- " dropped:ttt%10un",
- fore200e_swap(fore200e->stats->aal0.cells_transmitted),
- fore200e_swap(fore200e->stats->aal0.cells_received),
- fore200e_swap(fore200e->stats->aal0.cells_dropped));
-
- if (!left--)
- return sprintf(page,"n"
- " AAL3/4:n"
- " SAR sublayer:tt cellsn"
- " TX:ttt%10un"
- " RX:ttt%10un"
- " dropped:ttt%10un"
- " CRC errors:tt%10un"
- " protocol errors:tt%10unn"
- " CS sublayer:tt PDUsn"
- " TX:ttt%10un"
- " RX:ttt%10un"
- " dropped:ttt%10un"
- " protocol errors:tt%10un",
- fore200e_swap(fore200e->stats->aal34.cells_transmitted),
- fore200e_swap(fore200e->stats->aal34.cells_received),
- fore200e_swap(fore200e->stats->aal34.cells_dropped),
- fore200e_swap(fore200e->stats->aal34.cells_crc_errors),
- fore200e_swap(fore200e->stats->aal34.cells_protocol_errors),
- fore200e_swap(fore200e->stats->aal34.cspdus_transmitted),
- fore200e_swap(fore200e->stats->aal34.cspdus_received),
- fore200e_swap(fore200e->stats->aal34.cspdus_dropped),
- fore200e_swap(fore200e->stats->aal34.cspdus_protocol_errors));
-
- if (!left--)
- return sprintf(page,"n"
- " AAL5:n"
- " SAR sublayer:tt cellsn"
- " TX:ttt%10un"
- " RX:ttt%10un"
- " dropped:ttt%10un"
- " congestions:tt%10unn"
- " CS sublayer:tt PDUsn"
- " TX:ttt%10un"
- " RX:ttt%10un"
- " dropped:ttt%10un"
- " CRC errors:tt%10un"
- " protocol errors:tt%10un",
- fore200e_swap(fore200e->stats->aal5.cells_transmitted),
- fore200e_swap(fore200e->stats->aal5.cells_received),
- fore200e_swap(fore200e->stats->aal5.cells_dropped),
- fore200e_swap(fore200e->stats->aal5.congestion_experienced),
- fore200e_swap(fore200e->stats->aal5.cspdus_transmitted),
- fore200e_swap(fore200e->stats->aal5.cspdus_received),
- fore200e_swap(fore200e->stats->aal5.cspdus_dropped),
- fore200e_swap(fore200e->stats->aal5.cspdus_crc_errors),
- fore200e_swap(fore200e->stats->aal5.cspdus_protocol_errors));
-
- if (!left--)
- return sprintf(page,"n"
- " AUX:tt allocation failuresn"
- " small b1:ttt%10un"
- " large b1:ttt%10un"
- " small b2:ttt%10un"
- " large b2:ttt%10un"
- " RX PDUs:ttt%10un",
- fore200e_swap(fore200e->stats->aux.small_b1_failed),
- fore200e_swap(fore200e->stats->aux.large_b1_failed),
- fore200e_swap(fore200e->stats->aux.small_b2_failed),
- fore200e_swap(fore200e->stats->aux.large_b2_failed),
- fore200e_swap(fore200e->stats->aux.rpd_alloc_failed));
-
- if (!left--)
- return sprintf(page,"n"
- " receive carrier:ttt%sn",
- fore200e->stats->aux.receive_carrier ? "ON" : "OFF!");
-
- if (!left--) {
- struct atm_vcc *vcc;
- struct fore200e_vcc* fore200e_vcc;
-
- len = sprintf(page,"n"
- " VCCs:n addresstVPI.VCI:AALt(min/max tx PDU size) (min/max rx PDU size)n");
-
- for (vcc = fore200e->atm_dev->vccs; vcc; vcc = vcc->next) {
- fore200e_vcc = FORE200E_VCC(vcc);
-
- len += sprintf(page + len,
- " %xt%d.%d:%dtt(%d/%d)t(%d/%d)n",
- (u32)(unsigned long)vcc,
- vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal),
- fore200e_vcc->tx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->tx_min_pdu,
- fore200e_vcc->tx_max_pdu,
- fore200e_vcc->rx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->rx_min_pdu,
- fore200e_vcc->rx_max_pdu
- );
- }
- return len;
- }
-
- return 0;
- }
- #ifdef MODULE
- static int __init
- fore200e_module_init(void)
- {
- DPRINTK(1, "module loadedn");
- return fore200e_detect() == 0;
- }
- static void __exit
- fore200e_module_cleanup(void)
- {
- while (fore200e_boards) {
- fore200e_cleanup(&fore200e_boards);
- }
- DPRINTK(1, "module being removedn");
- }
- module_init(fore200e_module_init);
- module_exit(fore200e_module_cleanup);
- #endif
- static const struct atmdev_ops fore200e_ops =
- {
- open: fore200e_open,
- close: fore200e_close,
- ioctl: fore200e_ioctl,
- getsockopt: fore200e_getsockopt,
- setsockopt: fore200e_setsockopt,
- send: fore200e_send,
- change_qos: fore200e_change_qos,
- proc_read: fore200e_proc_read,
- owner: THIS_MODULE,
- };
- #ifdef CONFIG_ATM_FORE200E_PCA
- extern const unsigned char _fore200e_pca_fw_data[];
- extern const unsigned int _fore200e_pca_fw_size;
- #endif
- #ifdef CONFIG_ATM_FORE200E_SBA
- extern const unsigned char _fore200e_sba_fw_data[];
- extern const unsigned int _fore200e_sba_fw_size;
- #endif
- static const struct fore200e_bus fore200e_bus[] = {
- #ifdef CONFIG_ATM_FORE200E_PCA
- { "PCA-200E", "pca200e", 32, 4, 32,
- _fore200e_pca_fw_data, &_fore200e_pca_fw_size,
- fore200e_pca_read,
- fore200e_pca_write,
- fore200e_pca_dma_map,
- fore200e_pca_dma_unmap,
- fore200e_pca_dma_sync,
- fore200e_pca_dma_chunk_alloc,
- fore200e_pca_dma_chunk_free,
- fore200e_pca_detect,
- fore200e_pca_configure,
- fore200e_pca_map,
- fore200e_pca_reset,
- fore200e_pca_prom_read,
- fore200e_pca_unmap,
- NULL,
- fore200e_pca_irq_check,
- fore200e_pca_irq_ack,
- fore200e_pca_proc_read,
- },
- #endif
- #ifdef CONFIG_ATM_FORE200E_SBA
- { "SBA-200E", "sba200e", 32, 64, 32,
- _fore200e_sba_fw_data, &_fore200e_sba_fw_size,
- fore200e_sba_read,
- fore200e_sba_write,
- fore200e_sba_dma_map,
- fore200e_sba_dma_unmap,
- fore200e_sba_dma_sync,
- fore200e_sba_dma_chunk_alloc,
- fore200e_sba_dma_chunk_free,
- fore200e_sba_detect,
- fore200e_sba_configure,
- fore200e_sba_map,
- fore200e_sba_reset,
- fore200e_sba_prom_read,
- fore200e_sba_unmap,
- fore200e_sba_irq_enable,
- fore200e_sba_irq_check,
- fore200e_sba_irq_ack,
- fore200e_sba_proc_read,
- },
- #endif
- {}
- };
- MODULE_LICENSE("GPL");