11da177e4SLinus Torvalds /* $Id: he.c,v 1.18 2003/05/06 22:57:15 chas Exp $ */ 21da177e4SLinus Torvalds 31da177e4SLinus Torvalds /* 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds he.c 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds ForeRunnerHE ATM Adapter driver for ATM on Linux 81da177e4SLinus Torvalds Copyright (C) 1999-2001 Naval Research Laboratory 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds This library is free software; you can redistribute it and/or 111da177e4SLinus Torvalds modify it under the terms of the GNU Lesser General Public 121da177e4SLinus Torvalds License as published by the Free Software Foundation; either 131da177e4SLinus Torvalds version 2.1 of the License, or (at your option) any later version. 141da177e4SLinus Torvalds 151da177e4SLinus Torvalds This library is distributed in the hope that it will be useful, 161da177e4SLinus Torvalds but WITHOUT ANY WARRANTY; without even the implied warranty of 171da177e4SLinus Torvalds MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 181da177e4SLinus Torvalds Lesser General Public License for more details. 191da177e4SLinus Torvalds 201da177e4SLinus Torvalds You should have received a copy of the GNU Lesser General Public 211da177e4SLinus Torvalds License along with this library; if not, write to the Free Software 221da177e4SLinus Torvalds Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds */ 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds /* 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds he.c 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds ForeRunnerHE ATM Adapter driver for ATM on Linux 311da177e4SLinus Torvalds Copyright (C) 1999-2001 Naval Research Laboratory 321da177e4SLinus Torvalds 331da177e4SLinus Torvalds Permission to use, copy, modify and distribute this software and its 341da177e4SLinus Torvalds documentation is hereby granted, provided that both the copyright 351da177e4SLinus Torvalds notice and this permission notice appear in all copies of the software, 361da177e4SLinus Torvalds derivative works or modified versions, and any portions thereof, and 371da177e4SLinus Torvalds that both notices appear in supporting documentation. 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds NRL ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION AND 401da177e4SLinus Torvalds DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER 411da177e4SLinus Torvalds RESULTING FROM THE USE OF THIS SOFTWARE. 421da177e4SLinus Torvalds 431da177e4SLinus Torvalds This driver was written using the "Programmer's Reference Manual for 441da177e4SLinus Torvalds ForeRunnerHE(tm)", MANU0361-01 - Rev. A, 08/21/98. 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds AUTHORS: 471da177e4SLinus Torvalds chas williams <chas@cmf.nrl.navy.mil> 481da177e4SLinus Torvalds eric kinzie <ekinzie@cmf.nrl.navy.mil> 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds NOTES: 511da177e4SLinus Torvalds 4096 supported 'connections' 521da177e4SLinus Torvalds group 0 is used for all traffic 531da177e4SLinus Torvalds interrupt queue 0 is used for all interrupts 541da177e4SLinus Torvalds aal0 support (based on work from ulrich.u.muller@nokia.com) 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds */ 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds #include <linux/module.h> 591da177e4SLinus Torvalds #include <linux/kernel.h> 601da177e4SLinus Torvalds #include <linux/skbuff.h> 611da177e4SLinus Torvalds #include <linux/pci.h> 621da177e4SLinus Torvalds #include <linux/errno.h> 631da177e4SLinus Torvalds #include <linux/types.h> 641da177e4SLinus Torvalds #include <linux/string.h> 651da177e4SLinus Torvalds #include <linux/delay.h> 661da177e4SLinus Torvalds #include <linux/init.h> 671da177e4SLinus Torvalds #include <linux/mm.h> 681da177e4SLinus Torvalds #include <linux/sched.h> 691da177e4SLinus Torvalds #include <linux/timer.h> 701da177e4SLinus Torvalds #include <linux/interrupt.h> 71e5695f08Schas williams #include <linux/dma-mapping.h> 721da177e4SLinus Torvalds #include <asm/io.h> 731da177e4SLinus Torvalds #include <asm/byteorder.h> 741da177e4SLinus Torvalds #include <asm/uaccess.h> 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds #include <linux/atmdev.h> 771da177e4SLinus Torvalds #include <linux/atm.h> 781da177e4SLinus Torvalds #include <linux/sonet.h> 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds #define USE_TASKLET 811da177e4SLinus Torvalds #undef USE_SCATTERGATHER 821da177e4SLinus Torvalds #undef USE_CHECKSUM_HW /* still confused about this */ 831da177e4SLinus Torvalds #define USE_RBPS 841da177e4SLinus Torvalds #undef USE_RBPS_POOL /* if memory is tight try this */ 851da177e4SLinus Torvalds #undef USE_RBPL_POOL /* if memory is tight try this */ 861da177e4SLinus Torvalds #define USE_TPD_POOL 871da177e4SLinus Torvalds /* #undef CONFIG_ATM_HE_USE_SUNI */ 881da177e4SLinus Torvalds /* #undef HE_DEBUG */ 891da177e4SLinus Torvalds 901da177e4SLinus Torvalds #include "he.h" 911da177e4SLinus Torvalds #include "suni.h" 921da177e4SLinus Torvalds #include <linux/atm_he.h> 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds #define hprintk(fmt,args...) printk(KERN_ERR DEV_LABEL "%d: " fmt, he_dev->number , ##args) 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds #ifdef HE_DEBUG 971da177e4SLinus Torvalds #define HPRINTK(fmt,args...) printk(KERN_DEBUG DEV_LABEL "%d: " fmt, he_dev->number , ##args) 981da177e4SLinus Torvalds #else /* !HE_DEBUG */ 991da177e4SLinus Torvalds #define HPRINTK(fmt,args...) do { } while (0) 1001da177e4SLinus Torvalds #endif /* HE_DEBUG */ 1011da177e4SLinus Torvalds 1021da177e4SLinus Torvalds /* version definition */ 1031da177e4SLinus Torvalds 1041da177e4SLinus Torvalds static char *version = "$Id: he.c,v 1.18 2003/05/06 22:57:15 chas Exp $"; 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds /* declarations */ 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds static int he_open(struct atm_vcc *vcc); 1091da177e4SLinus Torvalds static void he_close(struct atm_vcc *vcc); 1101da177e4SLinus Torvalds static int he_send(struct atm_vcc *vcc, struct sk_buff *skb); 1111da177e4SLinus Torvalds static int he_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg); 1121da177e4SLinus Torvalds static irqreturn_t he_irq_handler(int irq, void *dev_id, struct pt_regs *regs); 1131da177e4SLinus Torvalds static void he_tasklet(unsigned long data); 1141da177e4SLinus Torvalds static int he_proc_read(struct atm_dev *dev,loff_t *pos,char *page); 1151da177e4SLinus Torvalds static int he_start(struct atm_dev *dev); 1161da177e4SLinus Torvalds static void he_stop(struct he_dev *dev); 1171da177e4SLinus Torvalds static void he_phy_put(struct atm_dev *, unsigned char, unsigned long); 1181da177e4SLinus Torvalds static unsigned char he_phy_get(struct atm_dev *, unsigned long); 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds static u8 read_prom_byte(struct he_dev *he_dev, int addr); 1211da177e4SLinus Torvalds 1221da177e4SLinus Torvalds /* globals */ 1231da177e4SLinus Torvalds 1241da177e4SLinus Torvalds static struct he_dev *he_devs; 1251da177e4SLinus Torvalds static int disable64; 1261da177e4SLinus Torvalds static short nvpibits = -1; 1271da177e4SLinus Torvalds static short nvcibits = -1; 1281da177e4SLinus Torvalds static short rx_skb_reserve = 16; 1291da177e4SLinus Torvalds static int irq_coalesce = 1; 1301da177e4SLinus Torvalds static int sdh = 0; 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds /* Read from EEPROM = 0000 0011b */ 1331da177e4SLinus Torvalds static unsigned int readtab[] = { 1341da177e4SLinus Torvalds CS_HIGH | CLK_HIGH, 1351da177e4SLinus Torvalds CS_LOW | CLK_LOW, 1361da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1371da177e4SLinus Torvalds CLK_LOW, 1381da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1391da177e4SLinus Torvalds CLK_LOW, 1401da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1411da177e4SLinus Torvalds CLK_LOW, 1421da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1431da177e4SLinus Torvalds CLK_LOW, 1441da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1451da177e4SLinus Torvalds CLK_LOW, 1461da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1471da177e4SLinus Torvalds CLK_LOW | SI_HIGH, 1481da177e4SLinus Torvalds CLK_HIGH | SI_HIGH, /* 1 */ 1491da177e4SLinus Torvalds CLK_LOW | SI_HIGH, 1501da177e4SLinus Torvalds CLK_HIGH | SI_HIGH /* 1 */ 1511da177e4SLinus Torvalds }; 1521da177e4SLinus Torvalds 1531da177e4SLinus Torvalds /* Clock to read from/write to the EEPROM */ 1541da177e4SLinus Torvalds static unsigned int clocktab[] = { 1551da177e4SLinus Torvalds CLK_LOW, 1561da177e4SLinus Torvalds CLK_HIGH, 1571da177e4SLinus Torvalds CLK_LOW, 1581da177e4SLinus Torvalds CLK_HIGH, 1591da177e4SLinus Torvalds CLK_LOW, 1601da177e4SLinus Torvalds CLK_HIGH, 1611da177e4SLinus Torvalds CLK_LOW, 1621da177e4SLinus Torvalds CLK_HIGH, 1631da177e4SLinus Torvalds CLK_LOW, 1641da177e4SLinus Torvalds CLK_HIGH, 1651da177e4SLinus Torvalds CLK_LOW, 1661da177e4SLinus Torvalds CLK_HIGH, 1671da177e4SLinus Torvalds CLK_LOW, 1681da177e4SLinus Torvalds CLK_HIGH, 1691da177e4SLinus Torvalds CLK_LOW, 1701da177e4SLinus Torvalds CLK_HIGH, 1711da177e4SLinus Torvalds CLK_LOW 1721da177e4SLinus Torvalds }; 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds static struct atmdev_ops he_ops = 1751da177e4SLinus Torvalds { 1761da177e4SLinus Torvalds .open = he_open, 1771da177e4SLinus Torvalds .close = he_close, 1781da177e4SLinus Torvalds .ioctl = he_ioctl, 1791da177e4SLinus Torvalds .send = he_send, 1801da177e4SLinus Torvalds .phy_put = he_phy_put, 1811da177e4SLinus Torvalds .phy_get = he_phy_get, 1821da177e4SLinus Torvalds .proc_read = he_proc_read, 1831da177e4SLinus Torvalds .owner = THIS_MODULE 1841da177e4SLinus Torvalds }; 1851da177e4SLinus Torvalds 1861da177e4SLinus Torvalds #define he_writel(dev, val, reg) do { writel(val, (dev)->membase + (reg)); wmb(); } while (0) 1871da177e4SLinus Torvalds #define he_readl(dev, reg) readl((dev)->membase + (reg)) 1881da177e4SLinus Torvalds 1891da177e4SLinus Torvalds /* section 2.12 connection memory access */ 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds static __inline__ void 1921da177e4SLinus Torvalds he_writel_internal(struct he_dev *he_dev, unsigned val, unsigned addr, 1931da177e4SLinus Torvalds unsigned flags) 1941da177e4SLinus Torvalds { 1951da177e4SLinus Torvalds he_writel(he_dev, val, CON_DAT); 1961da177e4SLinus Torvalds (void) he_readl(he_dev, CON_DAT); /* flush posted writes */ 1971da177e4SLinus Torvalds he_writel(he_dev, flags | CON_CTL_WRITE | CON_CTL_ADDR(addr), CON_CTL); 1981da177e4SLinus Torvalds while (he_readl(he_dev, CON_CTL) & CON_CTL_BUSY); 1991da177e4SLinus Torvalds } 2001da177e4SLinus Torvalds 2011da177e4SLinus Torvalds #define he_writel_rcm(dev, val, reg) \ 2021da177e4SLinus Torvalds he_writel_internal(dev, val, reg, CON_CTL_RCM) 2031da177e4SLinus Torvalds 2041da177e4SLinus Torvalds #define he_writel_tcm(dev, val, reg) \ 2051da177e4SLinus Torvalds he_writel_internal(dev, val, reg, CON_CTL_TCM) 2061da177e4SLinus Torvalds 2071da177e4SLinus Torvalds #define he_writel_mbox(dev, val, reg) \ 2081da177e4SLinus Torvalds he_writel_internal(dev, val, reg, CON_CTL_MBOX) 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds static unsigned 2111da177e4SLinus Torvalds he_readl_internal(struct he_dev *he_dev, unsigned addr, unsigned flags) 2121da177e4SLinus Torvalds { 2131da177e4SLinus Torvalds he_writel(he_dev, flags | CON_CTL_READ | CON_CTL_ADDR(addr), CON_CTL); 2141da177e4SLinus Torvalds while (he_readl(he_dev, CON_CTL) & CON_CTL_BUSY); 2151da177e4SLinus Torvalds return he_readl(he_dev, CON_DAT); 2161da177e4SLinus Torvalds } 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds #define he_readl_rcm(dev, reg) \ 2191da177e4SLinus Torvalds he_readl_internal(dev, reg, CON_CTL_RCM) 2201da177e4SLinus Torvalds 2211da177e4SLinus Torvalds #define he_readl_tcm(dev, reg) \ 2221da177e4SLinus Torvalds he_readl_internal(dev, reg, CON_CTL_TCM) 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds #define he_readl_mbox(dev, reg) \ 2251da177e4SLinus Torvalds he_readl_internal(dev, reg, CON_CTL_MBOX) 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds 2281da177e4SLinus Torvalds /* figure 2.2 connection id */ 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds #define he_mkcid(dev, vpi, vci) (((vpi << (dev)->vcibits) | vci) & 0x1fff) 2311da177e4SLinus Torvalds 2321da177e4SLinus Torvalds /* 2.5.1 per connection transmit state registers */ 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds #define he_writel_tsr0(dev, val, cid) \ 2351da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 0) 2361da177e4SLinus Torvalds #define he_readl_tsr0(dev, cid) \ 2371da177e4SLinus Torvalds he_readl_tcm(dev, CONFIG_TSRA | (cid << 3) | 0) 2381da177e4SLinus Torvalds 2391da177e4SLinus Torvalds #define he_writel_tsr1(dev, val, cid) \ 2401da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 1) 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds #define he_writel_tsr2(dev, val, cid) \ 2431da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 2) 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds #define he_writel_tsr3(dev, val, cid) \ 2461da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 3) 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds #define he_writel_tsr4(dev, val, cid) \ 2491da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 4) 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds /* from page 2-20 2521da177e4SLinus Torvalds * 2531da177e4SLinus Torvalds * NOTE While the transmit connection is active, bits 23 through 0 2541da177e4SLinus Torvalds * of this register must not be written by the host. Byte 2551da177e4SLinus Torvalds * enables should be used during normal operation when writing 2561da177e4SLinus Torvalds * the most significant byte. 2571da177e4SLinus Torvalds */ 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds #define he_writel_tsr4_upper(dev, val, cid) \ 2601da177e4SLinus Torvalds he_writel_internal(dev, val, CONFIG_TSRA | (cid << 3) | 4, \ 2611da177e4SLinus Torvalds CON_CTL_TCM \ 2621da177e4SLinus Torvalds | CON_BYTE_DISABLE_2 \ 2631da177e4SLinus Torvalds | CON_BYTE_DISABLE_1 \ 2641da177e4SLinus Torvalds | CON_BYTE_DISABLE_0) 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvalds #define he_readl_tsr4(dev, cid) \ 2671da177e4SLinus Torvalds he_readl_tcm(dev, CONFIG_TSRA | (cid << 3) | 4) 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds #define he_writel_tsr5(dev, val, cid) \ 2701da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 5) 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds #define he_writel_tsr6(dev, val, cid) \ 2731da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 6) 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds #define he_writel_tsr7(dev, val, cid) \ 2761da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 7) 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds #define he_writel_tsr8(dev, val, cid) \ 2801da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 0) 2811da177e4SLinus Torvalds 2821da177e4SLinus Torvalds #define he_writel_tsr9(dev, val, cid) \ 2831da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 1) 2841da177e4SLinus Torvalds 2851da177e4SLinus Torvalds #define he_writel_tsr10(dev, val, cid) \ 2861da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 2) 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds #define he_writel_tsr11(dev, val, cid) \ 2891da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 3) 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds 2921da177e4SLinus Torvalds #define he_writel_tsr12(dev, val, cid) \ 2931da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRC | (cid << 1) | 0) 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds #define he_writel_tsr13(dev, val, cid) \ 2961da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRC | (cid << 1) | 1) 2971da177e4SLinus Torvalds 2981da177e4SLinus Torvalds 2991da177e4SLinus Torvalds #define he_writel_tsr14(dev, val, cid) \ 3001da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRD | cid) 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds #define he_writel_tsr14_upper(dev, val, cid) \ 3031da177e4SLinus Torvalds he_writel_internal(dev, val, CONFIG_TSRD | cid, \ 3041da177e4SLinus Torvalds CON_CTL_TCM \ 3051da177e4SLinus Torvalds | CON_BYTE_DISABLE_2 \ 3061da177e4SLinus Torvalds | CON_BYTE_DISABLE_1 \ 3071da177e4SLinus Torvalds | CON_BYTE_DISABLE_0) 3081da177e4SLinus Torvalds 3091da177e4SLinus Torvalds /* 2.7.1 per connection receive state registers */ 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds #define he_writel_rsr0(dev, val, cid) \ 3121da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 0) 3131da177e4SLinus Torvalds #define he_readl_rsr0(dev, cid) \ 3141da177e4SLinus Torvalds he_readl_rcm(dev, 0x00000 | (cid << 3) | 0) 3151da177e4SLinus Torvalds 3161da177e4SLinus Torvalds #define he_writel_rsr1(dev, val, cid) \ 3171da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 1) 3181da177e4SLinus Torvalds 3191da177e4SLinus Torvalds #define he_writel_rsr2(dev, val, cid) \ 3201da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 2) 3211da177e4SLinus Torvalds 3221da177e4SLinus Torvalds #define he_writel_rsr3(dev, val, cid) \ 3231da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 3) 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds #define he_writel_rsr4(dev, val, cid) \ 3261da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 4) 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds #define he_writel_rsr5(dev, val, cid) \ 3291da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 5) 3301da177e4SLinus Torvalds 3311da177e4SLinus Torvalds #define he_writel_rsr6(dev, val, cid) \ 3321da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 6) 3331da177e4SLinus Torvalds 3341da177e4SLinus Torvalds #define he_writel_rsr7(dev, val, cid) \ 3351da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 7) 3361da177e4SLinus Torvalds 3371da177e4SLinus Torvalds static __inline__ struct atm_vcc* 3381da177e4SLinus Torvalds __find_vcc(struct he_dev *he_dev, unsigned cid) 3391da177e4SLinus Torvalds { 3401da177e4SLinus Torvalds struct hlist_head *head; 3411da177e4SLinus Torvalds struct atm_vcc *vcc; 3421da177e4SLinus Torvalds struct hlist_node *node; 3431da177e4SLinus Torvalds struct sock *s; 3441da177e4SLinus Torvalds short vpi; 3451da177e4SLinus Torvalds int vci; 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds vpi = cid >> he_dev->vcibits; 3481da177e4SLinus Torvalds vci = cid & ((1 << he_dev->vcibits) - 1); 3491da177e4SLinus Torvalds head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds sk_for_each(s, node, head) { 3521da177e4SLinus Torvalds vcc = atm_sk(s); 3531da177e4SLinus Torvalds if (vcc->dev == he_dev->atm_dev && 3541da177e4SLinus Torvalds vcc->vci == vci && vcc->vpi == vpi && 3551da177e4SLinus Torvalds vcc->qos.rxtp.traffic_class != ATM_NONE) { 3561da177e4SLinus Torvalds return vcc; 3571da177e4SLinus Torvalds } 3581da177e4SLinus Torvalds } 3591da177e4SLinus Torvalds return NULL; 3601da177e4SLinus Torvalds } 3611da177e4SLinus Torvalds 3621da177e4SLinus Torvalds static int __devinit 3631da177e4SLinus Torvalds he_init_one(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent) 3641da177e4SLinus Torvalds { 3651da177e4SLinus Torvalds struct atm_dev *atm_dev = NULL; 3661da177e4SLinus Torvalds struct he_dev *he_dev = NULL; 3671da177e4SLinus Torvalds int err = 0; 3681da177e4SLinus Torvalds 3691da177e4SLinus Torvalds printk(KERN_INFO "he: %s\n", version); 3701da177e4SLinus Torvalds 3711da177e4SLinus Torvalds if (pci_enable_device(pci_dev)) 3721da177e4SLinus Torvalds return -EIO; 373e5695f08Schas williams if (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK) != 0) { 3741da177e4SLinus Torvalds printk(KERN_WARNING "he: no suitable dma available\n"); 3751da177e4SLinus Torvalds err = -EIO; 3761da177e4SLinus Torvalds goto init_one_failure; 3771da177e4SLinus Torvalds } 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds atm_dev = atm_dev_register(DEV_LABEL, &he_ops, -1, NULL); 3801da177e4SLinus Torvalds if (!atm_dev) { 3811da177e4SLinus Torvalds err = -ENODEV; 3821da177e4SLinus Torvalds goto init_one_failure; 3831da177e4SLinus Torvalds } 3841da177e4SLinus Torvalds pci_set_drvdata(pci_dev, atm_dev); 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds he_dev = (struct he_dev *) kmalloc(sizeof(struct he_dev), 3871da177e4SLinus Torvalds GFP_KERNEL); 3881da177e4SLinus Torvalds if (!he_dev) { 3891da177e4SLinus Torvalds err = -ENOMEM; 3901da177e4SLinus Torvalds goto init_one_failure; 3911da177e4SLinus Torvalds } 3921da177e4SLinus Torvalds memset(he_dev, 0, sizeof(struct he_dev)); 3931da177e4SLinus Torvalds 3941da177e4SLinus Torvalds he_dev->pci_dev = pci_dev; 3951da177e4SLinus Torvalds he_dev->atm_dev = atm_dev; 3961da177e4SLinus Torvalds he_dev->atm_dev->dev_data = he_dev; 3971da177e4SLinus Torvalds atm_dev->dev_data = he_dev; 3981da177e4SLinus Torvalds he_dev->number = atm_dev->number; 3991da177e4SLinus Torvalds if (he_start(atm_dev)) { 4001da177e4SLinus Torvalds he_stop(he_dev); 4011da177e4SLinus Torvalds err = -ENODEV; 4021da177e4SLinus Torvalds goto init_one_failure; 4031da177e4SLinus Torvalds } 4041da177e4SLinus Torvalds he_dev->next = NULL; 4051da177e4SLinus Torvalds if (he_devs) 4061da177e4SLinus Torvalds he_dev->next = he_devs; 4071da177e4SLinus Torvalds he_devs = he_dev; 4081da177e4SLinus Torvalds return 0; 4091da177e4SLinus Torvalds 4101da177e4SLinus Torvalds init_one_failure: 4111da177e4SLinus Torvalds if (atm_dev) 4121da177e4SLinus Torvalds atm_dev_deregister(atm_dev); 4131da177e4SLinus Torvalds kfree(he_dev); 4141da177e4SLinus Torvalds pci_disable_device(pci_dev); 4151da177e4SLinus Torvalds return err; 4161da177e4SLinus Torvalds } 4171da177e4SLinus Torvalds 4181da177e4SLinus Torvalds static void __devexit 4191da177e4SLinus Torvalds he_remove_one (struct pci_dev *pci_dev) 4201da177e4SLinus Torvalds { 4211da177e4SLinus Torvalds struct atm_dev *atm_dev; 4221da177e4SLinus Torvalds struct he_dev *he_dev; 4231da177e4SLinus Torvalds 4241da177e4SLinus Torvalds atm_dev = pci_get_drvdata(pci_dev); 4251da177e4SLinus Torvalds he_dev = HE_DEV(atm_dev); 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds /* need to remove from he_devs */ 4281da177e4SLinus Torvalds 4291da177e4SLinus Torvalds he_stop(he_dev); 4301da177e4SLinus Torvalds atm_dev_deregister(atm_dev); 4311da177e4SLinus Torvalds kfree(he_dev); 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds pci_set_drvdata(pci_dev, NULL); 4341da177e4SLinus Torvalds pci_disable_device(pci_dev); 4351da177e4SLinus Torvalds } 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds 4381da177e4SLinus Torvalds static unsigned 4391da177e4SLinus Torvalds rate_to_atmf(unsigned rate) /* cps to atm forum format */ 4401da177e4SLinus Torvalds { 4411da177e4SLinus Torvalds #define NONZERO (1 << 14) 4421da177e4SLinus Torvalds 4431da177e4SLinus Torvalds unsigned exp = 0; 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds if (rate == 0) 4461da177e4SLinus Torvalds return 0; 4471da177e4SLinus Torvalds 4481da177e4SLinus Torvalds rate <<= 9; 4491da177e4SLinus Torvalds while (rate > 0x3ff) { 4501da177e4SLinus Torvalds ++exp; 4511da177e4SLinus Torvalds rate >>= 1; 4521da177e4SLinus Torvalds } 4531da177e4SLinus Torvalds 4541da177e4SLinus Torvalds return (NONZERO | (exp << 9) | (rate & 0x1ff)); 4551da177e4SLinus Torvalds } 4561da177e4SLinus Torvalds 4571da177e4SLinus Torvalds static void __init 4581da177e4SLinus Torvalds he_init_rx_lbfp0(struct he_dev *he_dev) 4591da177e4SLinus Torvalds { 4601da177e4SLinus Torvalds unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; 4611da177e4SLinus Torvalds unsigned lbufs_per_row = he_dev->cells_per_row / he_dev->cells_per_lbuf; 4621da177e4SLinus Torvalds unsigned lbuf_bufsize = he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD; 4631da177e4SLinus Torvalds unsigned row_offset = he_dev->r0_startrow * he_dev->bytes_per_row; 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds lbufd_index = 0; 4661da177e4SLinus Torvalds lbm_offset = he_readl(he_dev, RCMLBM_BA); 4671da177e4SLinus Torvalds 4681da177e4SLinus Torvalds he_writel(he_dev, lbufd_index, RLBF0_H); 4691da177e4SLinus Torvalds 4701da177e4SLinus Torvalds for (i = 0, lbuf_count = 0; i < he_dev->r0_numbuffs; ++i) { 4711da177e4SLinus Torvalds lbufd_index += 2; 4721da177e4SLinus Torvalds lbuf_addr = (row_offset + (lbuf_count * lbuf_bufsize)) / 32; 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds he_writel_rcm(he_dev, lbuf_addr, lbm_offset); 4751da177e4SLinus Torvalds he_writel_rcm(he_dev, lbufd_index, lbm_offset + 1); 4761da177e4SLinus Torvalds 4771da177e4SLinus Torvalds if (++lbuf_count == lbufs_per_row) { 4781da177e4SLinus Torvalds lbuf_count = 0; 4791da177e4SLinus Torvalds row_offset += he_dev->bytes_per_row; 4801da177e4SLinus Torvalds } 4811da177e4SLinus Torvalds lbm_offset += 4; 4821da177e4SLinus Torvalds } 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds he_writel(he_dev, lbufd_index - 2, RLBF0_T); 4851da177e4SLinus Torvalds he_writel(he_dev, he_dev->r0_numbuffs, RLBF0_C); 4861da177e4SLinus Torvalds } 4871da177e4SLinus Torvalds 4881da177e4SLinus Torvalds static void __init 4891da177e4SLinus Torvalds he_init_rx_lbfp1(struct he_dev *he_dev) 4901da177e4SLinus Torvalds { 4911da177e4SLinus Torvalds unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; 4921da177e4SLinus Torvalds unsigned lbufs_per_row = he_dev->cells_per_row / he_dev->cells_per_lbuf; 4931da177e4SLinus Torvalds unsigned lbuf_bufsize = he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD; 4941da177e4SLinus Torvalds unsigned row_offset = he_dev->r1_startrow * he_dev->bytes_per_row; 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds lbufd_index = 1; 4971da177e4SLinus Torvalds lbm_offset = he_readl(he_dev, RCMLBM_BA) + (2 * lbufd_index); 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds he_writel(he_dev, lbufd_index, RLBF1_H); 5001da177e4SLinus Torvalds 5011da177e4SLinus Torvalds for (i = 0, lbuf_count = 0; i < he_dev->r1_numbuffs; ++i) { 5021da177e4SLinus Torvalds lbufd_index += 2; 5031da177e4SLinus Torvalds lbuf_addr = (row_offset + (lbuf_count * lbuf_bufsize)) / 32; 5041da177e4SLinus Torvalds 5051da177e4SLinus Torvalds he_writel_rcm(he_dev, lbuf_addr, lbm_offset); 5061da177e4SLinus Torvalds he_writel_rcm(he_dev, lbufd_index, lbm_offset + 1); 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds if (++lbuf_count == lbufs_per_row) { 5091da177e4SLinus Torvalds lbuf_count = 0; 5101da177e4SLinus Torvalds row_offset += he_dev->bytes_per_row; 5111da177e4SLinus Torvalds } 5121da177e4SLinus Torvalds lbm_offset += 4; 5131da177e4SLinus Torvalds } 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds he_writel(he_dev, lbufd_index - 2, RLBF1_T); 5161da177e4SLinus Torvalds he_writel(he_dev, he_dev->r1_numbuffs, RLBF1_C); 5171da177e4SLinus Torvalds } 5181da177e4SLinus Torvalds 5191da177e4SLinus Torvalds static void __init 5201da177e4SLinus Torvalds he_init_tx_lbfp(struct he_dev *he_dev) 5211da177e4SLinus Torvalds { 5221da177e4SLinus Torvalds unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; 5231da177e4SLinus Torvalds unsigned lbufs_per_row = he_dev->cells_per_row / he_dev->cells_per_lbuf; 5241da177e4SLinus Torvalds unsigned lbuf_bufsize = he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD; 5251da177e4SLinus Torvalds unsigned row_offset = he_dev->tx_startrow * he_dev->bytes_per_row; 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds lbufd_index = he_dev->r0_numbuffs + he_dev->r1_numbuffs; 5281da177e4SLinus Torvalds lbm_offset = he_readl(he_dev, RCMLBM_BA) + (2 * lbufd_index); 5291da177e4SLinus Torvalds 5301da177e4SLinus Torvalds he_writel(he_dev, lbufd_index, TLBF_H); 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds for (i = 0, lbuf_count = 0; i < he_dev->tx_numbuffs; ++i) { 5331da177e4SLinus Torvalds lbufd_index += 1; 5341da177e4SLinus Torvalds lbuf_addr = (row_offset + (lbuf_count * lbuf_bufsize)) / 32; 5351da177e4SLinus Torvalds 5361da177e4SLinus Torvalds he_writel_rcm(he_dev, lbuf_addr, lbm_offset); 5371da177e4SLinus Torvalds he_writel_rcm(he_dev, lbufd_index, lbm_offset + 1); 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds if (++lbuf_count == lbufs_per_row) { 5401da177e4SLinus Torvalds lbuf_count = 0; 5411da177e4SLinus Torvalds row_offset += he_dev->bytes_per_row; 5421da177e4SLinus Torvalds } 5431da177e4SLinus Torvalds lbm_offset += 2; 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds he_writel(he_dev, lbufd_index - 1, TLBF_T); 5471da177e4SLinus Torvalds } 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds static int __init 5501da177e4SLinus Torvalds he_init_tpdrq(struct he_dev *he_dev) 5511da177e4SLinus Torvalds { 5521da177e4SLinus Torvalds he_dev->tpdrq_base = pci_alloc_consistent(he_dev->pci_dev, 5531da177e4SLinus Torvalds CONFIG_TPDRQ_SIZE * sizeof(struct he_tpdrq), &he_dev->tpdrq_phys); 5541da177e4SLinus Torvalds if (he_dev->tpdrq_base == NULL) { 5551da177e4SLinus Torvalds hprintk("failed to alloc tpdrq\n"); 5561da177e4SLinus Torvalds return -ENOMEM; 5571da177e4SLinus Torvalds } 5581da177e4SLinus Torvalds memset(he_dev->tpdrq_base, 0, 5591da177e4SLinus Torvalds CONFIG_TPDRQ_SIZE * sizeof(struct he_tpdrq)); 5601da177e4SLinus Torvalds 5611da177e4SLinus Torvalds he_dev->tpdrq_tail = he_dev->tpdrq_base; 5621da177e4SLinus Torvalds he_dev->tpdrq_head = he_dev->tpdrq_base; 5631da177e4SLinus Torvalds 5641da177e4SLinus Torvalds he_writel(he_dev, he_dev->tpdrq_phys, TPDRQ_B_H); 5651da177e4SLinus Torvalds he_writel(he_dev, 0, TPDRQ_T); 5661da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TPDRQ_SIZE - 1, TPDRQ_S); 5671da177e4SLinus Torvalds 5681da177e4SLinus Torvalds return 0; 5691da177e4SLinus Torvalds } 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds static void __init 5721da177e4SLinus Torvalds he_init_cs_block(struct he_dev *he_dev) 5731da177e4SLinus Torvalds { 5741da177e4SLinus Torvalds unsigned clock, rate, delta; 5751da177e4SLinus Torvalds int reg; 5761da177e4SLinus Torvalds 5771da177e4SLinus Torvalds /* 5.1.7 cs block initialization */ 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds for (reg = 0; reg < 0x20; ++reg) 5801da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0, CS_STTIM0 + reg); 5811da177e4SLinus Torvalds 5821da177e4SLinus Torvalds /* rate grid timer reload values */ 5831da177e4SLinus Torvalds 5841da177e4SLinus Torvalds clock = he_is622(he_dev) ? 66667000 : 50000000; 5851da177e4SLinus Torvalds rate = he_dev->atm_dev->link_rate; 5861da177e4SLinus Torvalds delta = rate / 16 / 2; 5871da177e4SLinus Torvalds 5881da177e4SLinus Torvalds for (reg = 0; reg < 0x10; ++reg) { 5891da177e4SLinus Torvalds /* 2.4 internal transmit function 5901da177e4SLinus Torvalds * 5911da177e4SLinus Torvalds * we initialize the first row in the rate grid. 5921da177e4SLinus Torvalds * values are period (in clock cycles) of timer 5931da177e4SLinus Torvalds */ 5941da177e4SLinus Torvalds unsigned period = clock / rate; 5951da177e4SLinus Torvalds 5961da177e4SLinus Torvalds he_writel_mbox(he_dev, period, CS_TGRLD0 + reg); 5971da177e4SLinus Torvalds rate -= delta; 5981da177e4SLinus Torvalds } 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds if (he_is622(he_dev)) { 6011da177e4SLinus Torvalds /* table 5.2 (4 cells per lbuf) */ 6021da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000800fa, CS_ERTHR0); 6031da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000c33cb, CS_ERTHR1); 6041da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0010101b, CS_ERTHR2); 6051da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00181dac, CS_ERTHR3); 6061da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00280600, CS_ERTHR4); 6071da177e4SLinus Torvalds 6081da177e4SLinus Torvalds /* table 5.3, 5.4, 5.5, 5.6, 5.7 */ 6091da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x023de8b3, CS_ERCTL0); 6101da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1801, CS_ERCTL1); 6111da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_ERCTL2); 6121da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1280, CS_ERSTAT0); 6131da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_ERSTAT1); 6141da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x14585, CS_RTFWR); 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x4680, CS_RTATR); 6171da177e4SLinus Torvalds 6181da177e4SLinus Torvalds /* table 5.8 */ 6191da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00159ece, CS_TFBSET); 6201da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_WCRMAX); 6211da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x5eb3, CS_WCRMIN); 6221da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xe8b3, CS_WCRINC); 6231da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xdeb3, CS_WCRDEC); 6241da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_WCRCEIL); 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds /* table 5.9 */ 6271da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x5, CS_OTPPER); 6281da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x14, CS_OTWPER); 6291da177e4SLinus Torvalds } else { 6301da177e4SLinus Torvalds /* table 5.1 (4 cells per lbuf) */ 6311da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000400ea, CS_ERTHR0); 6321da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00063388, CS_ERTHR1); 6331da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00081018, CS_ERTHR2); 6341da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000c1dac, CS_ERTHR3); 6351da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0014051a, CS_ERTHR4); 6361da177e4SLinus Torvalds 6371da177e4SLinus Torvalds /* table 5.3, 5.4, 5.5, 5.6, 5.7 */ 6381da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0235e4b1, CS_ERCTL0); 6391da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x4701, CS_ERCTL1); 6401da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_ERCTL2); 6411da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1280, CS_ERSTAT0); 6421da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_ERSTAT1); 6431da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xf424, CS_RTFWR); 6441da177e4SLinus Torvalds 6451da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x4680, CS_RTATR); 6461da177e4SLinus Torvalds 6471da177e4SLinus Torvalds /* table 5.8 */ 6481da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000563b7, CS_TFBSET); 6491da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_WCRMAX); 6501da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x5ab1, CS_WCRMIN); 6511da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xe4b1, CS_WCRINC); 6521da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xdab1, CS_WCRDEC); 6531da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_WCRCEIL); 6541da177e4SLinus Torvalds 6551da177e4SLinus Torvalds /* table 5.9 */ 6561da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x6, CS_OTPPER); 6571da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1e, CS_OTWPER); 6581da177e4SLinus Torvalds } 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x8, CS_OTTLIM); 6611da177e4SLinus Torvalds 6621da177e4SLinus Torvalds for (reg = 0; reg < 0x8; ++reg) 6631da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0, CS_HGRRT0 + reg); 6641da177e4SLinus Torvalds 6651da177e4SLinus Torvalds } 6661da177e4SLinus Torvalds 6671da177e4SLinus Torvalds static int __init 6681da177e4SLinus Torvalds he_init_cs_block_rcm(struct he_dev *he_dev) 6691da177e4SLinus Torvalds { 6701da177e4SLinus Torvalds unsigned (*rategrid)[16][16]; 6711da177e4SLinus Torvalds unsigned rate, delta; 6721da177e4SLinus Torvalds int i, j, reg; 6731da177e4SLinus Torvalds 6741da177e4SLinus Torvalds unsigned rate_atmf, exp, man; 6751da177e4SLinus Torvalds unsigned long long rate_cps; 6761da177e4SLinus Torvalds int mult, buf, buf_limit = 4; 6771da177e4SLinus Torvalds 6781da177e4SLinus Torvalds rategrid = kmalloc( sizeof(unsigned) * 16 * 16, GFP_KERNEL); 6791da177e4SLinus Torvalds if (!rategrid) 6801da177e4SLinus Torvalds return -ENOMEM; 6811da177e4SLinus Torvalds 6821da177e4SLinus Torvalds /* initialize rate grid group table */ 6831da177e4SLinus Torvalds 6841da177e4SLinus Torvalds for (reg = 0x0; reg < 0xff; ++reg) 6851da177e4SLinus Torvalds he_writel_rcm(he_dev, 0x0, CONFIG_RCMABR + reg); 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds /* initialize rate controller groups */ 6881da177e4SLinus Torvalds 6891da177e4SLinus Torvalds for (reg = 0x100; reg < 0x1ff; ++reg) 6901da177e4SLinus Torvalds he_writel_rcm(he_dev, 0x0, CONFIG_RCMABR + reg); 6911da177e4SLinus Torvalds 6921da177e4SLinus Torvalds /* initialize tNrm lookup table */ 6931da177e4SLinus Torvalds 6941da177e4SLinus Torvalds /* the manual makes reference to a routine in a sample driver 6951da177e4SLinus Torvalds for proper configuration; fortunately, we only need this 6961da177e4SLinus Torvalds in order to support abr connection */ 6971da177e4SLinus Torvalds 6981da177e4SLinus Torvalds /* initialize rate to group table */ 6991da177e4SLinus Torvalds 7001da177e4SLinus Torvalds rate = he_dev->atm_dev->link_rate; 7011da177e4SLinus Torvalds delta = rate / 32; 7021da177e4SLinus Torvalds 7031da177e4SLinus Torvalds /* 7041da177e4SLinus Torvalds * 2.4 transmit internal functions 7051da177e4SLinus Torvalds * 7061da177e4SLinus Torvalds * we construct a copy of the rate grid used by the scheduler 7071da177e4SLinus Torvalds * in order to construct the rate to group table below 7081da177e4SLinus Torvalds */ 7091da177e4SLinus Torvalds 7101da177e4SLinus Torvalds for (j = 0; j < 16; j++) { 7111da177e4SLinus Torvalds (*rategrid)[0][j] = rate; 7121da177e4SLinus Torvalds rate -= delta; 7131da177e4SLinus Torvalds } 7141da177e4SLinus Torvalds 7151da177e4SLinus Torvalds for (i = 1; i < 16; i++) 7161da177e4SLinus Torvalds for (j = 0; j < 16; j++) 7171da177e4SLinus Torvalds if (i > 14) 7181da177e4SLinus Torvalds (*rategrid)[i][j] = (*rategrid)[i - 1][j] / 4; 7191da177e4SLinus Torvalds else 7201da177e4SLinus Torvalds (*rategrid)[i][j] = (*rategrid)[i - 1][j] / 2; 7211da177e4SLinus Torvalds 7221da177e4SLinus Torvalds /* 7231da177e4SLinus Torvalds * 2.4 transmit internal function 7241da177e4SLinus Torvalds * 7251da177e4SLinus Torvalds * this table maps the upper 5 bits of exponent and mantissa 7261da177e4SLinus Torvalds * of the atm forum representation of the rate into an index 7271da177e4SLinus Torvalds * on rate grid 7281da177e4SLinus Torvalds */ 7291da177e4SLinus Torvalds 7301da177e4SLinus Torvalds rate_atmf = 0; 7311da177e4SLinus Torvalds while (rate_atmf < 0x400) { 7321da177e4SLinus Torvalds man = (rate_atmf & 0x1f) << 4; 7331da177e4SLinus Torvalds exp = rate_atmf >> 5; 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds /* 7361da177e4SLinus Torvalds instead of '/ 512', use '>> 9' to prevent a call 7371da177e4SLinus Torvalds to divdu3 on x86 platforms 7381da177e4SLinus Torvalds */ 7391da177e4SLinus Torvalds rate_cps = (unsigned long long) (1 << exp) * (man + 512) >> 9; 7401da177e4SLinus Torvalds 7411da177e4SLinus Torvalds if (rate_cps < 10) 7421da177e4SLinus Torvalds rate_cps = 10; /* 2.2.1 minimum payload rate is 10 cps */ 7431da177e4SLinus Torvalds 7441da177e4SLinus Torvalds for (i = 255; i > 0; i--) 7451da177e4SLinus Torvalds if ((*rategrid)[i/16][i%16] >= rate_cps) 7461da177e4SLinus Torvalds break; /* pick nearest rate instead? */ 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds /* 7491da177e4SLinus Torvalds * each table entry is 16 bits: (rate grid index (8 bits) 7501da177e4SLinus Torvalds * and a buffer limit (8 bits) 7511da177e4SLinus Torvalds * there are two table entries in each 32-bit register 7521da177e4SLinus Torvalds */ 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds #ifdef notdef 7551da177e4SLinus Torvalds buf = rate_cps * he_dev->tx_numbuffs / 7561da177e4SLinus Torvalds (he_dev->atm_dev->link_rate * 2); 7571da177e4SLinus Torvalds #else 7581da177e4SLinus Torvalds /* this is pretty, but avoids _divdu3 and is mostly correct */ 7591da177e4SLinus Torvalds mult = he_dev->atm_dev->link_rate / ATM_OC3_PCR; 7601da177e4SLinus Torvalds if (rate_cps > (272 * mult)) 7611da177e4SLinus Torvalds buf = 4; 7621da177e4SLinus Torvalds else if (rate_cps > (204 * mult)) 7631da177e4SLinus Torvalds buf = 3; 7641da177e4SLinus Torvalds else if (rate_cps > (136 * mult)) 7651da177e4SLinus Torvalds buf = 2; 7661da177e4SLinus Torvalds else if (rate_cps > (68 * mult)) 7671da177e4SLinus Torvalds buf = 1; 7681da177e4SLinus Torvalds else 7691da177e4SLinus Torvalds buf = 0; 7701da177e4SLinus Torvalds #endif 7711da177e4SLinus Torvalds if (buf > buf_limit) 7721da177e4SLinus Torvalds buf = buf_limit; 7731da177e4SLinus Torvalds reg = (reg << 16) | ((i << 8) | buf); 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds #define RTGTBL_OFFSET 0x400 7761da177e4SLinus Torvalds 7771da177e4SLinus Torvalds if (rate_atmf & 0x1) 7781da177e4SLinus Torvalds he_writel_rcm(he_dev, reg, 7791da177e4SLinus Torvalds CONFIG_RCMABR + RTGTBL_OFFSET + (rate_atmf >> 1)); 7801da177e4SLinus Torvalds 7811da177e4SLinus Torvalds ++rate_atmf; 7821da177e4SLinus Torvalds } 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds kfree(rategrid); 7851da177e4SLinus Torvalds return 0; 7861da177e4SLinus Torvalds } 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds static int __init 7891da177e4SLinus Torvalds he_init_group(struct he_dev *he_dev, int group) 7901da177e4SLinus Torvalds { 7911da177e4SLinus Torvalds int i; 7921da177e4SLinus Torvalds 7931da177e4SLinus Torvalds #ifdef USE_RBPS 7941da177e4SLinus Torvalds /* small buffer pool */ 7951da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 7961da177e4SLinus Torvalds he_dev->rbps_pool = pci_pool_create("rbps", he_dev->pci_dev, 7971da177e4SLinus Torvalds CONFIG_RBPS_BUFSIZE, 8, 0); 7981da177e4SLinus Torvalds if (he_dev->rbps_pool == NULL) { 7991da177e4SLinus Torvalds hprintk("unable to create rbps pages\n"); 8001da177e4SLinus Torvalds return -ENOMEM; 8011da177e4SLinus Torvalds } 8021da177e4SLinus Torvalds #else /* !USE_RBPS_POOL */ 8031da177e4SLinus Torvalds he_dev->rbps_pages = pci_alloc_consistent(he_dev->pci_dev, 8041da177e4SLinus Torvalds CONFIG_RBPS_SIZE * CONFIG_RBPS_BUFSIZE, &he_dev->rbps_pages_phys); 8051da177e4SLinus Torvalds if (he_dev->rbps_pages == NULL) { 8061da177e4SLinus Torvalds hprintk("unable to create rbps page pool\n"); 8071da177e4SLinus Torvalds return -ENOMEM; 8081da177e4SLinus Torvalds } 8091da177e4SLinus Torvalds #endif /* USE_RBPS_POOL */ 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds he_dev->rbps_base = pci_alloc_consistent(he_dev->pci_dev, 8121da177e4SLinus Torvalds CONFIG_RBPS_SIZE * sizeof(struct he_rbp), &he_dev->rbps_phys); 8131da177e4SLinus Torvalds if (he_dev->rbps_base == NULL) { 8141da177e4SLinus Torvalds hprintk("failed to alloc rbps\n"); 8151da177e4SLinus Torvalds return -ENOMEM; 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds memset(he_dev->rbps_base, 0, CONFIG_RBPS_SIZE * sizeof(struct he_rbp)); 8181da177e4SLinus Torvalds he_dev->rbps_virt = kmalloc(CONFIG_RBPS_SIZE * sizeof(struct he_virt), GFP_KERNEL); 8191da177e4SLinus Torvalds 8201da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPS_SIZE; ++i) { 8211da177e4SLinus Torvalds dma_addr_t dma_handle; 8221da177e4SLinus Torvalds void *cpuaddr; 8231da177e4SLinus Torvalds 8241da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 8251da177e4SLinus Torvalds cpuaddr = pci_pool_alloc(he_dev->rbps_pool, SLAB_KERNEL|SLAB_DMA, &dma_handle); 8261da177e4SLinus Torvalds if (cpuaddr == NULL) 8271da177e4SLinus Torvalds return -ENOMEM; 8281da177e4SLinus Torvalds #else 8291da177e4SLinus Torvalds cpuaddr = he_dev->rbps_pages + (i * CONFIG_RBPS_BUFSIZE); 8301da177e4SLinus Torvalds dma_handle = he_dev->rbps_pages_phys + (i * CONFIG_RBPS_BUFSIZE); 8311da177e4SLinus Torvalds #endif 8321da177e4SLinus Torvalds 8331da177e4SLinus Torvalds he_dev->rbps_virt[i].virt = cpuaddr; 8341da177e4SLinus Torvalds he_dev->rbps_base[i].status = RBP_LOANED | RBP_SMALLBUF | (i << RBP_INDEX_OFF); 8351da177e4SLinus Torvalds he_dev->rbps_base[i].phys = dma_handle; 8361da177e4SLinus Torvalds 8371da177e4SLinus Torvalds } 8381da177e4SLinus Torvalds he_dev->rbps_tail = &he_dev->rbps_base[CONFIG_RBPS_SIZE - 1]; 8391da177e4SLinus Torvalds 8401da177e4SLinus Torvalds he_writel(he_dev, he_dev->rbps_phys, G0_RBPS_S + (group * 32)); 8411da177e4SLinus Torvalds he_writel(he_dev, RBPS_MASK(he_dev->rbps_tail), 8421da177e4SLinus Torvalds G0_RBPS_T + (group * 32)); 8431da177e4SLinus Torvalds he_writel(he_dev, CONFIG_RBPS_BUFSIZE/4, 8441da177e4SLinus Torvalds G0_RBPS_BS + (group * 32)); 8451da177e4SLinus Torvalds he_writel(he_dev, 8461da177e4SLinus Torvalds RBP_THRESH(CONFIG_RBPS_THRESH) | 8471da177e4SLinus Torvalds RBP_QSIZE(CONFIG_RBPS_SIZE - 1) | 8481da177e4SLinus Torvalds RBP_INT_ENB, 8491da177e4SLinus Torvalds G0_RBPS_QI + (group * 32)); 8501da177e4SLinus Torvalds #else /* !USE_RBPS */ 8511da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_S + (group * 32)); 8521da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_T + (group * 32)); 8531da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_QI + (group * 32)); 8541da177e4SLinus Torvalds he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0), 8551da177e4SLinus Torvalds G0_RBPS_BS + (group * 32)); 8561da177e4SLinus Torvalds #endif /* USE_RBPS */ 8571da177e4SLinus Torvalds 8581da177e4SLinus Torvalds /* large buffer pool */ 8591da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 8601da177e4SLinus Torvalds he_dev->rbpl_pool = pci_pool_create("rbpl", he_dev->pci_dev, 8611da177e4SLinus Torvalds CONFIG_RBPL_BUFSIZE, 8, 0); 8621da177e4SLinus Torvalds if (he_dev->rbpl_pool == NULL) { 8631da177e4SLinus Torvalds hprintk("unable to create rbpl pool\n"); 8641da177e4SLinus Torvalds return -ENOMEM; 8651da177e4SLinus Torvalds } 8661da177e4SLinus Torvalds #else /* !USE_RBPL_POOL */ 8671da177e4SLinus Torvalds he_dev->rbpl_pages = (void *) pci_alloc_consistent(he_dev->pci_dev, 8681da177e4SLinus Torvalds CONFIG_RBPL_SIZE * CONFIG_RBPL_BUFSIZE, &he_dev->rbpl_pages_phys); 8691da177e4SLinus Torvalds if (he_dev->rbpl_pages == NULL) { 8701da177e4SLinus Torvalds hprintk("unable to create rbpl pages\n"); 8711da177e4SLinus Torvalds return -ENOMEM; 8721da177e4SLinus Torvalds } 8731da177e4SLinus Torvalds #endif /* USE_RBPL_POOL */ 8741da177e4SLinus Torvalds 8751da177e4SLinus Torvalds he_dev->rbpl_base = pci_alloc_consistent(he_dev->pci_dev, 8761da177e4SLinus Torvalds CONFIG_RBPL_SIZE * sizeof(struct he_rbp), &he_dev->rbpl_phys); 8771da177e4SLinus Torvalds if (he_dev->rbpl_base == NULL) { 8781da177e4SLinus Torvalds hprintk("failed to alloc rbpl\n"); 8791da177e4SLinus Torvalds return -ENOMEM; 8801da177e4SLinus Torvalds } 8811da177e4SLinus Torvalds memset(he_dev->rbpl_base, 0, CONFIG_RBPL_SIZE * sizeof(struct he_rbp)); 8821da177e4SLinus Torvalds he_dev->rbpl_virt = kmalloc(CONFIG_RBPL_SIZE * sizeof(struct he_virt), GFP_KERNEL); 8831da177e4SLinus Torvalds 8841da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPL_SIZE; ++i) { 8851da177e4SLinus Torvalds dma_addr_t dma_handle; 8861da177e4SLinus Torvalds void *cpuaddr; 8871da177e4SLinus Torvalds 8881da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 8891da177e4SLinus Torvalds cpuaddr = pci_pool_alloc(he_dev->rbpl_pool, SLAB_KERNEL|SLAB_DMA, &dma_handle); 8901da177e4SLinus Torvalds if (cpuaddr == NULL) 8911da177e4SLinus Torvalds return -ENOMEM; 8921da177e4SLinus Torvalds #else 8931da177e4SLinus Torvalds cpuaddr = he_dev->rbpl_pages + (i * CONFIG_RBPL_BUFSIZE); 8941da177e4SLinus Torvalds dma_handle = he_dev->rbpl_pages_phys + (i * CONFIG_RBPL_BUFSIZE); 8951da177e4SLinus Torvalds #endif 8961da177e4SLinus Torvalds 8971da177e4SLinus Torvalds he_dev->rbpl_virt[i].virt = cpuaddr; 8981da177e4SLinus Torvalds he_dev->rbpl_base[i].status = RBP_LOANED | (i << RBP_INDEX_OFF); 8991da177e4SLinus Torvalds he_dev->rbpl_base[i].phys = dma_handle; 9001da177e4SLinus Torvalds } 9011da177e4SLinus Torvalds he_dev->rbpl_tail = &he_dev->rbpl_base[CONFIG_RBPL_SIZE - 1]; 9021da177e4SLinus Torvalds 9031da177e4SLinus Torvalds he_writel(he_dev, he_dev->rbpl_phys, G0_RBPL_S + (group * 32)); 9041da177e4SLinus Torvalds he_writel(he_dev, RBPL_MASK(he_dev->rbpl_tail), 9051da177e4SLinus Torvalds G0_RBPL_T + (group * 32)); 9061da177e4SLinus Torvalds he_writel(he_dev, CONFIG_RBPL_BUFSIZE/4, 9071da177e4SLinus Torvalds G0_RBPL_BS + (group * 32)); 9081da177e4SLinus Torvalds he_writel(he_dev, 9091da177e4SLinus Torvalds RBP_THRESH(CONFIG_RBPL_THRESH) | 9101da177e4SLinus Torvalds RBP_QSIZE(CONFIG_RBPL_SIZE - 1) | 9111da177e4SLinus Torvalds RBP_INT_ENB, 9121da177e4SLinus Torvalds G0_RBPL_QI + (group * 32)); 9131da177e4SLinus Torvalds 9141da177e4SLinus Torvalds /* rx buffer ready queue */ 9151da177e4SLinus Torvalds 9161da177e4SLinus Torvalds he_dev->rbrq_base = pci_alloc_consistent(he_dev->pci_dev, 9171da177e4SLinus Torvalds CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq), &he_dev->rbrq_phys); 9181da177e4SLinus Torvalds if (he_dev->rbrq_base == NULL) { 9191da177e4SLinus Torvalds hprintk("failed to allocate rbrq\n"); 9201da177e4SLinus Torvalds return -ENOMEM; 9211da177e4SLinus Torvalds } 9221da177e4SLinus Torvalds memset(he_dev->rbrq_base, 0, CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq)); 9231da177e4SLinus Torvalds 9241da177e4SLinus Torvalds he_dev->rbrq_head = he_dev->rbrq_base; 9251da177e4SLinus Torvalds he_writel(he_dev, he_dev->rbrq_phys, G0_RBRQ_ST + (group * 16)); 9261da177e4SLinus Torvalds he_writel(he_dev, 0, G0_RBRQ_H + (group * 16)); 9271da177e4SLinus Torvalds he_writel(he_dev, 9281da177e4SLinus Torvalds RBRQ_THRESH(CONFIG_RBRQ_THRESH) | RBRQ_SIZE(CONFIG_RBRQ_SIZE - 1), 9291da177e4SLinus Torvalds G0_RBRQ_Q + (group * 16)); 9301da177e4SLinus Torvalds if (irq_coalesce) { 9311da177e4SLinus Torvalds hprintk("coalescing interrupts\n"); 9321da177e4SLinus Torvalds he_writel(he_dev, RBRQ_TIME(768) | RBRQ_COUNT(7), 9331da177e4SLinus Torvalds G0_RBRQ_I + (group * 16)); 9341da177e4SLinus Torvalds } else 9351da177e4SLinus Torvalds he_writel(he_dev, RBRQ_TIME(0) | RBRQ_COUNT(1), 9361da177e4SLinus Torvalds G0_RBRQ_I + (group * 16)); 9371da177e4SLinus Torvalds 9381da177e4SLinus Torvalds /* tx buffer ready queue */ 9391da177e4SLinus Torvalds 9401da177e4SLinus Torvalds he_dev->tbrq_base = pci_alloc_consistent(he_dev->pci_dev, 9411da177e4SLinus Torvalds CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq), &he_dev->tbrq_phys); 9421da177e4SLinus Torvalds if (he_dev->tbrq_base == NULL) { 9431da177e4SLinus Torvalds hprintk("failed to allocate tbrq\n"); 9441da177e4SLinus Torvalds return -ENOMEM; 9451da177e4SLinus Torvalds } 9461da177e4SLinus Torvalds memset(he_dev->tbrq_base, 0, CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq)); 9471da177e4SLinus Torvalds 9481da177e4SLinus Torvalds he_dev->tbrq_head = he_dev->tbrq_base; 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds he_writel(he_dev, he_dev->tbrq_phys, G0_TBRQ_B_T + (group * 16)); 9511da177e4SLinus Torvalds he_writel(he_dev, 0, G0_TBRQ_H + (group * 16)); 9521da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TBRQ_SIZE - 1, G0_TBRQ_S + (group * 16)); 9531da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TBRQ_THRESH, G0_TBRQ_THRESH + (group * 16)); 9541da177e4SLinus Torvalds 9551da177e4SLinus Torvalds return 0; 9561da177e4SLinus Torvalds } 9571da177e4SLinus Torvalds 9581da177e4SLinus Torvalds static int __init 9591da177e4SLinus Torvalds he_init_irq(struct he_dev *he_dev) 9601da177e4SLinus Torvalds { 9611da177e4SLinus Torvalds int i; 9621da177e4SLinus Torvalds 9631da177e4SLinus Torvalds /* 2.9.3.5 tail offset for each interrupt queue is located after the 9641da177e4SLinus Torvalds end of the interrupt queue */ 9651da177e4SLinus Torvalds 9661da177e4SLinus Torvalds he_dev->irq_base = pci_alloc_consistent(he_dev->pci_dev, 9671da177e4SLinus Torvalds (CONFIG_IRQ_SIZE+1) * sizeof(struct he_irq), &he_dev->irq_phys); 9681da177e4SLinus Torvalds if (he_dev->irq_base == NULL) { 9691da177e4SLinus Torvalds hprintk("failed to allocate irq\n"); 9701da177e4SLinus Torvalds return -ENOMEM; 9711da177e4SLinus Torvalds } 9721da177e4SLinus Torvalds he_dev->irq_tailoffset = (unsigned *) 9731da177e4SLinus Torvalds &he_dev->irq_base[CONFIG_IRQ_SIZE]; 9741da177e4SLinus Torvalds *he_dev->irq_tailoffset = 0; 9751da177e4SLinus Torvalds he_dev->irq_head = he_dev->irq_base; 9761da177e4SLinus Torvalds he_dev->irq_tail = he_dev->irq_base; 9771da177e4SLinus Torvalds 9781da177e4SLinus Torvalds for (i = 0; i < CONFIG_IRQ_SIZE; ++i) 9791da177e4SLinus Torvalds he_dev->irq_base[i].isw = ITYPE_INVALID; 9801da177e4SLinus Torvalds 9811da177e4SLinus Torvalds he_writel(he_dev, he_dev->irq_phys, IRQ0_BASE); 9821da177e4SLinus Torvalds he_writel(he_dev, 9831da177e4SLinus Torvalds IRQ_SIZE(CONFIG_IRQ_SIZE) | IRQ_THRESH(CONFIG_IRQ_THRESH), 9841da177e4SLinus Torvalds IRQ0_HEAD); 9851da177e4SLinus Torvalds he_writel(he_dev, IRQ_INT_A | IRQ_TYPE_LINE, IRQ0_CNTL); 9861da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ0_DATA); 9871da177e4SLinus Torvalds 9881da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_BASE); 9891da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_HEAD); 9901da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_CNTL); 9911da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_DATA); 9921da177e4SLinus Torvalds 9931da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_BASE); 9941da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_HEAD); 9951da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_CNTL); 9961da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_DATA); 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_BASE); 9991da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_HEAD); 10001da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_CNTL); 10011da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_DATA); 10021da177e4SLinus Torvalds 10031da177e4SLinus Torvalds /* 2.9.3.2 interrupt queue mapping registers */ 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_10_MAP); 10061da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_32_MAP); 10071da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_54_MAP); 10081da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_76_MAP); 10091da177e4SLinus Torvalds 1010dace1453SThomas Gleixner if (request_irq(he_dev->pci_dev->irq, he_irq_handler, IRQF_DISABLED|IRQF_SHARED, DEV_LABEL, he_dev)) { 10111da177e4SLinus Torvalds hprintk("irq %d already in use\n", he_dev->pci_dev->irq); 10121da177e4SLinus Torvalds return -EINVAL; 10131da177e4SLinus Torvalds } 10141da177e4SLinus Torvalds 10151da177e4SLinus Torvalds he_dev->irq = he_dev->pci_dev->irq; 10161da177e4SLinus Torvalds 10171da177e4SLinus Torvalds return 0; 10181da177e4SLinus Torvalds } 10191da177e4SLinus Torvalds 1020d17f0865SChas Williams static int __devinit 10211da177e4SLinus Torvalds he_start(struct atm_dev *dev) 10221da177e4SLinus Torvalds { 10231da177e4SLinus Torvalds struct he_dev *he_dev; 10241da177e4SLinus Torvalds struct pci_dev *pci_dev; 10251da177e4SLinus Torvalds unsigned long membase; 10261da177e4SLinus Torvalds 10271da177e4SLinus Torvalds u16 command; 10281da177e4SLinus Torvalds u32 gen_cntl_0, host_cntl, lb_swap; 10291da177e4SLinus Torvalds u8 cache_size, timer; 10301da177e4SLinus Torvalds 10311da177e4SLinus Torvalds unsigned err; 10321da177e4SLinus Torvalds unsigned int status, reg; 10331da177e4SLinus Torvalds int i, group; 10341da177e4SLinus Torvalds 10351da177e4SLinus Torvalds he_dev = HE_DEV(dev); 10361da177e4SLinus Torvalds pci_dev = he_dev->pci_dev; 10371da177e4SLinus Torvalds 10381da177e4SLinus Torvalds membase = pci_resource_start(pci_dev, 0); 10391da177e4SLinus Torvalds HPRINTK("membase = 0x%lx irq = %d.\n", membase, pci_dev->irq); 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds /* 10421da177e4SLinus Torvalds * pci bus controller initialization 10431da177e4SLinus Torvalds */ 10441da177e4SLinus Torvalds 10451da177e4SLinus Torvalds /* 4.3 pci bus controller-specific initialization */ 10461da177e4SLinus Torvalds if (pci_read_config_dword(pci_dev, GEN_CNTL_0, &gen_cntl_0) != 0) { 10471da177e4SLinus Torvalds hprintk("can't read GEN_CNTL_0\n"); 10481da177e4SLinus Torvalds return -EINVAL; 10491da177e4SLinus Torvalds } 10501da177e4SLinus Torvalds gen_cntl_0 |= (MRL_ENB | MRM_ENB | IGNORE_TIMEOUT); 10511da177e4SLinus Torvalds if (pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0) != 0) { 10521da177e4SLinus Torvalds hprintk("can't write GEN_CNTL_0.\n"); 10531da177e4SLinus Torvalds return -EINVAL; 10541da177e4SLinus Torvalds } 10551da177e4SLinus Torvalds 10561da177e4SLinus Torvalds if (pci_read_config_word(pci_dev, PCI_COMMAND, &command) != 0) { 10571da177e4SLinus Torvalds hprintk("can't read PCI_COMMAND.\n"); 10581da177e4SLinus Torvalds return -EINVAL; 10591da177e4SLinus Torvalds } 10601da177e4SLinus Torvalds 10611da177e4SLinus Torvalds command |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE); 10621da177e4SLinus Torvalds if (pci_write_config_word(pci_dev, PCI_COMMAND, command) != 0) { 10631da177e4SLinus Torvalds hprintk("can't enable memory.\n"); 10641da177e4SLinus Torvalds return -EINVAL; 10651da177e4SLinus Torvalds } 10661da177e4SLinus Torvalds 10671da177e4SLinus Torvalds if (pci_read_config_byte(pci_dev, PCI_CACHE_LINE_SIZE, &cache_size)) { 10681da177e4SLinus Torvalds hprintk("can't read cache line size?\n"); 10691da177e4SLinus Torvalds return -EINVAL; 10701da177e4SLinus Torvalds } 10711da177e4SLinus Torvalds 10721da177e4SLinus Torvalds if (cache_size < 16) { 10731da177e4SLinus Torvalds cache_size = 16; 10741da177e4SLinus Torvalds if (pci_write_config_byte(pci_dev, PCI_CACHE_LINE_SIZE, cache_size)) 10751da177e4SLinus Torvalds hprintk("can't set cache line size to %d\n", cache_size); 10761da177e4SLinus Torvalds } 10771da177e4SLinus Torvalds 10781da177e4SLinus Torvalds if (pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &timer)) { 10791da177e4SLinus Torvalds hprintk("can't read latency timer?\n"); 10801da177e4SLinus Torvalds return -EINVAL; 10811da177e4SLinus Torvalds } 10821da177e4SLinus Torvalds 10831da177e4SLinus Torvalds /* from table 3.9 10841da177e4SLinus Torvalds * 10851da177e4SLinus Torvalds * LAT_TIMER = 1 + AVG_LAT + BURST_SIZE/BUS_SIZE 10861da177e4SLinus Torvalds * 10871da177e4SLinus Torvalds * AVG_LAT: The average first data read/write latency [maximum 16 clock cycles] 10881da177e4SLinus Torvalds * BURST_SIZE: 1536 bytes (read) for 622, 768 bytes (read) for 155 [192 clock cycles] 10891da177e4SLinus Torvalds * 10901da177e4SLinus Torvalds */ 10911da177e4SLinus Torvalds #define LAT_TIMER 209 10921da177e4SLinus Torvalds if (timer < LAT_TIMER) { 10931da177e4SLinus Torvalds HPRINTK("latency timer was %d, setting to %d\n", timer, LAT_TIMER); 10941da177e4SLinus Torvalds timer = LAT_TIMER; 10951da177e4SLinus Torvalds if (pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, timer)) 10961da177e4SLinus Torvalds hprintk("can't set latency timer to %d\n", timer); 10971da177e4SLinus Torvalds } 10981da177e4SLinus Torvalds 10991da177e4SLinus Torvalds if (!(he_dev->membase = ioremap(membase, HE_REGMAP_SIZE))) { 11001da177e4SLinus Torvalds hprintk("can't set up page mapping\n"); 11011da177e4SLinus Torvalds return -EINVAL; 11021da177e4SLinus Torvalds } 11031da177e4SLinus Torvalds 11041da177e4SLinus Torvalds /* 4.4 card reset */ 11051da177e4SLinus Torvalds he_writel(he_dev, 0x0, RESET_CNTL); 11061da177e4SLinus Torvalds he_writel(he_dev, 0xff, RESET_CNTL); 11071da177e4SLinus Torvalds 11081da177e4SLinus Torvalds udelay(16*1000); /* 16 ms */ 11091da177e4SLinus Torvalds status = he_readl(he_dev, RESET_CNTL); 11101da177e4SLinus Torvalds if ((status & BOARD_RST_STATUS) == 0) { 11111da177e4SLinus Torvalds hprintk("reset failed\n"); 11121da177e4SLinus Torvalds return -EINVAL; 11131da177e4SLinus Torvalds } 11141da177e4SLinus Torvalds 11151da177e4SLinus Torvalds /* 4.5 set bus width */ 11161da177e4SLinus Torvalds host_cntl = he_readl(he_dev, HOST_CNTL); 11171da177e4SLinus Torvalds if (host_cntl & PCI_BUS_SIZE64) 11181da177e4SLinus Torvalds gen_cntl_0 |= ENBL_64; 11191da177e4SLinus Torvalds else 11201da177e4SLinus Torvalds gen_cntl_0 &= ~ENBL_64; 11211da177e4SLinus Torvalds 11221da177e4SLinus Torvalds if (disable64 == 1) { 11231da177e4SLinus Torvalds hprintk("disabling 64-bit pci bus transfers\n"); 11241da177e4SLinus Torvalds gen_cntl_0 &= ~ENBL_64; 11251da177e4SLinus Torvalds } 11261da177e4SLinus Torvalds 11271da177e4SLinus Torvalds if (gen_cntl_0 & ENBL_64) 11281da177e4SLinus Torvalds hprintk("64-bit transfers enabled\n"); 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0); 11311da177e4SLinus Torvalds 11321da177e4SLinus Torvalds /* 4.7 read prom contents */ 11331da177e4SLinus Torvalds for (i = 0; i < PROD_ID_LEN; ++i) 11341da177e4SLinus Torvalds he_dev->prod_id[i] = read_prom_byte(he_dev, PROD_ID + i); 11351da177e4SLinus Torvalds 11361da177e4SLinus Torvalds he_dev->media = read_prom_byte(he_dev, MEDIA); 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds for (i = 0; i < 6; ++i) 11391da177e4SLinus Torvalds dev->esi[i] = read_prom_byte(he_dev, MAC_ADDR + i); 11401da177e4SLinus Torvalds 11411da177e4SLinus Torvalds hprintk("%s%s, %x:%x:%x:%x:%x:%x\n", 11421da177e4SLinus Torvalds he_dev->prod_id, 11431da177e4SLinus Torvalds he_dev->media & 0x40 ? "SM" : "MM", 11441da177e4SLinus Torvalds dev->esi[0], 11451da177e4SLinus Torvalds dev->esi[1], 11461da177e4SLinus Torvalds dev->esi[2], 11471da177e4SLinus Torvalds dev->esi[3], 11481da177e4SLinus Torvalds dev->esi[4], 11491da177e4SLinus Torvalds dev->esi[5]); 11501da177e4SLinus Torvalds he_dev->atm_dev->link_rate = he_is622(he_dev) ? 11511da177e4SLinus Torvalds ATM_OC12_PCR : ATM_OC3_PCR; 11521da177e4SLinus Torvalds 11531da177e4SLinus Torvalds /* 4.6 set host endianess */ 11541da177e4SLinus Torvalds lb_swap = he_readl(he_dev, LB_SWAP); 11551da177e4SLinus Torvalds if (he_is622(he_dev)) 11561da177e4SLinus Torvalds lb_swap &= ~XFER_SIZE; /* 4 cells */ 11571da177e4SLinus Torvalds else 11581da177e4SLinus Torvalds lb_swap |= XFER_SIZE; /* 8 cells */ 11591da177e4SLinus Torvalds #ifdef __BIG_ENDIAN 11601da177e4SLinus Torvalds lb_swap |= DESC_WR_SWAP | INTR_SWAP | BIG_ENDIAN_HOST; 11611da177e4SLinus Torvalds #else 11621da177e4SLinus Torvalds lb_swap &= ~(DESC_WR_SWAP | INTR_SWAP | BIG_ENDIAN_HOST | 11631da177e4SLinus Torvalds DATA_WR_SWAP | DATA_RD_SWAP | DESC_RD_SWAP); 11641da177e4SLinus Torvalds #endif /* __BIG_ENDIAN */ 11651da177e4SLinus Torvalds he_writel(he_dev, lb_swap, LB_SWAP); 11661da177e4SLinus Torvalds 11671da177e4SLinus Torvalds /* 4.8 sdram controller initialization */ 11681da177e4SLinus Torvalds he_writel(he_dev, he_is622(he_dev) ? LB_64_ENB : 0x0, SDRAM_CTL); 11691da177e4SLinus Torvalds 11701da177e4SLinus Torvalds /* 4.9 initialize rnum value */ 11711da177e4SLinus Torvalds lb_swap |= SWAP_RNUM_MAX(0xf); 11721da177e4SLinus Torvalds he_writel(he_dev, lb_swap, LB_SWAP); 11731da177e4SLinus Torvalds 11741da177e4SLinus Torvalds /* 4.10 initialize the interrupt queues */ 11751da177e4SLinus Torvalds if ((err = he_init_irq(he_dev)) != 0) 11761da177e4SLinus Torvalds return err; 11771da177e4SLinus Torvalds 11781da177e4SLinus Torvalds #ifdef USE_TASKLET 11791da177e4SLinus Torvalds tasklet_init(&he_dev->tasklet, he_tasklet, (unsigned long) he_dev); 11801da177e4SLinus Torvalds #endif 11811da177e4SLinus Torvalds spin_lock_init(&he_dev->global_lock); 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds /* 4.11 enable pci bus controller state machines */ 11841da177e4SLinus Torvalds host_cntl |= (OUTFF_ENB | CMDFF_ENB | 11851da177e4SLinus Torvalds QUICK_RD_RETRY | QUICK_WR_RETRY | PERR_INT_ENB); 11861da177e4SLinus Torvalds he_writel(he_dev, host_cntl, HOST_CNTL); 11871da177e4SLinus Torvalds 11881da177e4SLinus Torvalds gen_cntl_0 |= INT_PROC_ENBL|INIT_ENB; 11891da177e4SLinus Torvalds pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0); 11901da177e4SLinus Torvalds 11911da177e4SLinus Torvalds /* 11921da177e4SLinus Torvalds * atm network controller initialization 11931da177e4SLinus Torvalds */ 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds /* 5.1.1 generic configuration state */ 11961da177e4SLinus Torvalds 11971da177e4SLinus Torvalds /* 11981da177e4SLinus Torvalds * local (cell) buffer memory map 11991da177e4SLinus Torvalds * 12001da177e4SLinus Torvalds * HE155 HE622 12011da177e4SLinus Torvalds * 12021da177e4SLinus Torvalds * 0 ____________1023 bytes 0 _______________________2047 bytes 12031da177e4SLinus Torvalds * | | | | | 12041da177e4SLinus Torvalds * | utility | | rx0 | | 12051da177e4SLinus Torvalds * 5|____________| 255|___________________| u | 12061da177e4SLinus Torvalds * 6| | 256| | t | 12071da177e4SLinus Torvalds * | | | | i | 12081da177e4SLinus Torvalds * | rx0 | row | tx | l | 12091da177e4SLinus Torvalds * | | | | i | 12101da177e4SLinus Torvalds * | | 767|___________________| t | 12111da177e4SLinus Torvalds * 517|____________| 768| | y | 12121da177e4SLinus Torvalds * row 518| | | rx1 | | 12131da177e4SLinus Torvalds * | | 1023|___________________|___| 12141da177e4SLinus Torvalds * | | 12151da177e4SLinus Torvalds * | tx | 12161da177e4SLinus Torvalds * | | 12171da177e4SLinus Torvalds * | | 12181da177e4SLinus Torvalds * 1535|____________| 12191da177e4SLinus Torvalds * 1536| | 12201da177e4SLinus Torvalds * | rx1 | 12211da177e4SLinus Torvalds * 2047|____________| 12221da177e4SLinus Torvalds * 12231da177e4SLinus Torvalds */ 12241da177e4SLinus Torvalds 12251da177e4SLinus Torvalds /* total 4096 connections */ 12261da177e4SLinus Torvalds he_dev->vcibits = CONFIG_DEFAULT_VCIBITS; 12271da177e4SLinus Torvalds he_dev->vpibits = CONFIG_DEFAULT_VPIBITS; 12281da177e4SLinus Torvalds 12291da177e4SLinus Torvalds if (nvpibits != -1 && nvcibits != -1 && nvpibits+nvcibits != HE_MAXCIDBITS) { 12301da177e4SLinus Torvalds hprintk("nvpibits + nvcibits != %d\n", HE_MAXCIDBITS); 12311da177e4SLinus Torvalds return -ENODEV; 12321da177e4SLinus Torvalds } 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds if (nvpibits != -1) { 12351da177e4SLinus Torvalds he_dev->vpibits = nvpibits; 12361da177e4SLinus Torvalds he_dev->vcibits = HE_MAXCIDBITS - nvpibits; 12371da177e4SLinus Torvalds } 12381da177e4SLinus Torvalds 12391da177e4SLinus Torvalds if (nvcibits != -1) { 12401da177e4SLinus Torvalds he_dev->vcibits = nvcibits; 12411da177e4SLinus Torvalds he_dev->vpibits = HE_MAXCIDBITS - nvcibits; 12421da177e4SLinus Torvalds } 12431da177e4SLinus Torvalds 12441da177e4SLinus Torvalds 12451da177e4SLinus Torvalds if (he_is622(he_dev)) { 12461da177e4SLinus Torvalds he_dev->cells_per_row = 40; 12471da177e4SLinus Torvalds he_dev->bytes_per_row = 2048; 12481da177e4SLinus Torvalds he_dev->r0_numrows = 256; 12491da177e4SLinus Torvalds he_dev->tx_numrows = 512; 12501da177e4SLinus Torvalds he_dev->r1_numrows = 256; 12511da177e4SLinus Torvalds he_dev->r0_startrow = 0; 12521da177e4SLinus Torvalds he_dev->tx_startrow = 256; 12531da177e4SLinus Torvalds he_dev->r1_startrow = 768; 12541da177e4SLinus Torvalds } else { 12551da177e4SLinus Torvalds he_dev->cells_per_row = 20; 12561da177e4SLinus Torvalds he_dev->bytes_per_row = 1024; 12571da177e4SLinus Torvalds he_dev->r0_numrows = 512; 12581da177e4SLinus Torvalds he_dev->tx_numrows = 1018; 12591da177e4SLinus Torvalds he_dev->r1_numrows = 512; 12601da177e4SLinus Torvalds he_dev->r0_startrow = 6; 12611da177e4SLinus Torvalds he_dev->tx_startrow = 518; 12621da177e4SLinus Torvalds he_dev->r1_startrow = 1536; 12631da177e4SLinus Torvalds } 12641da177e4SLinus Torvalds 12651da177e4SLinus Torvalds he_dev->cells_per_lbuf = 4; 12661da177e4SLinus Torvalds he_dev->buffer_limit = 4; 12671da177e4SLinus Torvalds he_dev->r0_numbuffs = he_dev->r0_numrows * 12681da177e4SLinus Torvalds he_dev->cells_per_row / he_dev->cells_per_lbuf; 12691da177e4SLinus Torvalds if (he_dev->r0_numbuffs > 2560) 12701da177e4SLinus Torvalds he_dev->r0_numbuffs = 2560; 12711da177e4SLinus Torvalds 12721da177e4SLinus Torvalds he_dev->r1_numbuffs = he_dev->r1_numrows * 12731da177e4SLinus Torvalds he_dev->cells_per_row / he_dev->cells_per_lbuf; 12741da177e4SLinus Torvalds if (he_dev->r1_numbuffs > 2560) 12751da177e4SLinus Torvalds he_dev->r1_numbuffs = 2560; 12761da177e4SLinus Torvalds 12771da177e4SLinus Torvalds he_dev->tx_numbuffs = he_dev->tx_numrows * 12781da177e4SLinus Torvalds he_dev->cells_per_row / he_dev->cells_per_lbuf; 12791da177e4SLinus Torvalds if (he_dev->tx_numbuffs > 5120) 12801da177e4SLinus Torvalds he_dev->tx_numbuffs = 5120; 12811da177e4SLinus Torvalds 12821da177e4SLinus Torvalds /* 5.1.2 configure hardware dependent registers */ 12831da177e4SLinus Torvalds 12841da177e4SLinus Torvalds he_writel(he_dev, 12851da177e4SLinus Torvalds SLICE_X(0x2) | ARB_RNUM_MAX(0xf) | TH_PRTY(0x3) | 12861da177e4SLinus Torvalds RH_PRTY(0x3) | TL_PRTY(0x2) | RL_PRTY(0x1) | 12871da177e4SLinus Torvalds (he_is622(he_dev) ? BUS_MULTI(0x28) : BUS_MULTI(0x46)) | 12881da177e4SLinus Torvalds (he_is622(he_dev) ? NET_PREF(0x50) : NET_PREF(0x8c)), 12891da177e4SLinus Torvalds LBARB); 12901da177e4SLinus Torvalds 12911da177e4SLinus Torvalds he_writel(he_dev, BANK_ON | 12921da177e4SLinus Torvalds (he_is622(he_dev) ? (REF_RATE(0x384) | WIDE_DATA) : REF_RATE(0x150)), 12931da177e4SLinus Torvalds SDRAMCON); 12941da177e4SLinus Torvalds 12951da177e4SLinus Torvalds he_writel(he_dev, 12961da177e4SLinus Torvalds (he_is622(he_dev) ? RM_BANK_WAIT(1) : RM_BANK_WAIT(0)) | 12971da177e4SLinus Torvalds RM_RW_WAIT(1), RCMCONFIG); 12981da177e4SLinus Torvalds he_writel(he_dev, 12991da177e4SLinus Torvalds (he_is622(he_dev) ? TM_BANK_WAIT(2) : TM_BANK_WAIT(1)) | 13001da177e4SLinus Torvalds TM_RW_WAIT(1), TCMCONFIG); 13011da177e4SLinus Torvalds 13021da177e4SLinus Torvalds he_writel(he_dev, he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD, LB_CONFIG); 13031da177e4SLinus Torvalds 13041da177e4SLinus Torvalds he_writel(he_dev, 13051da177e4SLinus Torvalds (he_is622(he_dev) ? UT_RD_DELAY(8) : UT_RD_DELAY(0)) | 13061da177e4SLinus Torvalds (he_is622(he_dev) ? RC_UT_MODE(0) : RC_UT_MODE(1)) | 13071da177e4SLinus Torvalds RX_VALVP(he_dev->vpibits) | 13081da177e4SLinus Torvalds RX_VALVC(he_dev->vcibits), RC_CONFIG); 13091da177e4SLinus Torvalds 13101da177e4SLinus Torvalds he_writel(he_dev, DRF_THRESH(0x20) | 13111da177e4SLinus Torvalds (he_is622(he_dev) ? TX_UT_MODE(0) : TX_UT_MODE(1)) | 13121da177e4SLinus Torvalds TX_VCI_MASK(he_dev->vcibits) | 13131da177e4SLinus Torvalds LBFREE_CNT(he_dev->tx_numbuffs), TX_CONFIG); 13141da177e4SLinus Torvalds 13151da177e4SLinus Torvalds he_writel(he_dev, 0x0, TXAAL5_PROTO); 13161da177e4SLinus Torvalds 13171da177e4SLinus Torvalds he_writel(he_dev, PHY_INT_ENB | 13181da177e4SLinus Torvalds (he_is622(he_dev) ? PTMR_PRE(67 - 1) : PTMR_PRE(50 - 1)), 13191da177e4SLinus Torvalds RH_CONFIG); 13201da177e4SLinus Torvalds 13211da177e4SLinus Torvalds /* 5.1.3 initialize connection memory */ 13221da177e4SLinus Torvalds 13231da177e4SLinus Torvalds for (i = 0; i < TCM_MEM_SIZE; ++i) 13241da177e4SLinus Torvalds he_writel_tcm(he_dev, 0, i); 13251da177e4SLinus Torvalds 13261da177e4SLinus Torvalds for (i = 0; i < RCM_MEM_SIZE; ++i) 13271da177e4SLinus Torvalds he_writel_rcm(he_dev, 0, i); 13281da177e4SLinus Torvalds 13291da177e4SLinus Torvalds /* 13301da177e4SLinus Torvalds * transmit connection memory map 13311da177e4SLinus Torvalds * 13321da177e4SLinus Torvalds * tx memory 13331da177e4SLinus Torvalds * 0x0 ___________________ 13341da177e4SLinus Torvalds * | | 13351da177e4SLinus Torvalds * | | 13361da177e4SLinus Torvalds * | TSRa | 13371da177e4SLinus Torvalds * | | 13381da177e4SLinus Torvalds * | | 13391da177e4SLinus Torvalds * 0x8000|___________________| 13401da177e4SLinus Torvalds * | | 13411da177e4SLinus Torvalds * | TSRb | 13421da177e4SLinus Torvalds * 0xc000|___________________| 13431da177e4SLinus Torvalds * | | 13441da177e4SLinus Torvalds * | TSRc | 13451da177e4SLinus Torvalds * 0xe000|___________________| 13461da177e4SLinus Torvalds * | TSRd | 13471da177e4SLinus Torvalds * 0xf000|___________________| 13481da177e4SLinus Torvalds * | tmABR | 13491da177e4SLinus Torvalds * 0x10000|___________________| 13501da177e4SLinus Torvalds * | | 13511da177e4SLinus Torvalds * | tmTPD | 13521da177e4SLinus Torvalds * |___________________| 13531da177e4SLinus Torvalds * | | 13541da177e4SLinus Torvalds * .... 13551da177e4SLinus Torvalds * 0x1ffff|___________________| 13561da177e4SLinus Torvalds * 13571da177e4SLinus Torvalds * 13581da177e4SLinus Torvalds */ 13591da177e4SLinus Torvalds 13601da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TSRB, TSRB_BA); 13611da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TSRC, TSRC_BA); 13621da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TSRD, TSRD_BA); 13631da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TMABR, TMABR_BA); 13641da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TPDBA, TPD_BA); 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds 13671da177e4SLinus Torvalds /* 13681da177e4SLinus Torvalds * receive connection memory map 13691da177e4SLinus Torvalds * 13701da177e4SLinus Torvalds * 0x0 ___________________ 13711da177e4SLinus Torvalds * | | 13721da177e4SLinus Torvalds * | | 13731da177e4SLinus Torvalds * | RSRa | 13741da177e4SLinus Torvalds * | | 13751da177e4SLinus Torvalds * | | 13761da177e4SLinus Torvalds * 0x8000|___________________| 13771da177e4SLinus Torvalds * | | 13781da177e4SLinus Torvalds * | rx0/1 | 13791da177e4SLinus Torvalds * | LBM | link lists of local 13801da177e4SLinus Torvalds * | tx | buffer memory 13811da177e4SLinus Torvalds * | | 13821da177e4SLinus Torvalds * 0xd000|___________________| 13831da177e4SLinus Torvalds * | | 13841da177e4SLinus Torvalds * | rmABR | 13851da177e4SLinus Torvalds * 0xe000|___________________| 13861da177e4SLinus Torvalds * | | 13871da177e4SLinus Torvalds * | RSRb | 13881da177e4SLinus Torvalds * |___________________| 13891da177e4SLinus Torvalds * | | 13901da177e4SLinus Torvalds * .... 13911da177e4SLinus Torvalds * 0xffff|___________________| 13921da177e4SLinus Torvalds */ 13931da177e4SLinus Torvalds 13941da177e4SLinus Torvalds he_writel(he_dev, 0x08000, RCMLBM_BA); 13951da177e4SLinus Torvalds he_writel(he_dev, 0x0e000, RCMRSRB_BA); 13961da177e4SLinus Torvalds he_writel(he_dev, 0x0d800, RCMABR_BA); 13971da177e4SLinus Torvalds 13981da177e4SLinus Torvalds /* 5.1.4 initialize local buffer free pools linked lists */ 13991da177e4SLinus Torvalds 14001da177e4SLinus Torvalds he_init_rx_lbfp0(he_dev); 14011da177e4SLinus Torvalds he_init_rx_lbfp1(he_dev); 14021da177e4SLinus Torvalds 14031da177e4SLinus Torvalds he_writel(he_dev, 0x0, RLBC_H); 14041da177e4SLinus Torvalds he_writel(he_dev, 0x0, RLBC_T); 14051da177e4SLinus Torvalds he_writel(he_dev, 0x0, RLBC_H2); 14061da177e4SLinus Torvalds 14071da177e4SLinus Torvalds he_writel(he_dev, 512, RXTHRSH); /* 10% of r0+r1 buffers */ 14081da177e4SLinus Torvalds he_writel(he_dev, 256, LITHRSH); /* 5% of r0+r1 buffers */ 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds he_init_tx_lbfp(he_dev); 14111da177e4SLinus Torvalds 14121da177e4SLinus Torvalds he_writel(he_dev, he_is622(he_dev) ? 0x104780 : 0x800, UBUFF_BA); 14131da177e4SLinus Torvalds 14141da177e4SLinus Torvalds /* 5.1.5 initialize intermediate receive queues */ 14151da177e4SLinus Torvalds 14161da177e4SLinus Torvalds if (he_is622(he_dev)) { 14171da177e4SLinus Torvalds he_writel(he_dev, 0x000f, G0_INMQ_S); 14181da177e4SLinus Torvalds he_writel(he_dev, 0x200f, G0_INMQ_L); 14191da177e4SLinus Torvalds 14201da177e4SLinus Torvalds he_writel(he_dev, 0x001f, G1_INMQ_S); 14211da177e4SLinus Torvalds he_writel(he_dev, 0x201f, G1_INMQ_L); 14221da177e4SLinus Torvalds 14231da177e4SLinus Torvalds he_writel(he_dev, 0x002f, G2_INMQ_S); 14241da177e4SLinus Torvalds he_writel(he_dev, 0x202f, G2_INMQ_L); 14251da177e4SLinus Torvalds 14261da177e4SLinus Torvalds he_writel(he_dev, 0x003f, G3_INMQ_S); 14271da177e4SLinus Torvalds he_writel(he_dev, 0x203f, G3_INMQ_L); 14281da177e4SLinus Torvalds 14291da177e4SLinus Torvalds he_writel(he_dev, 0x004f, G4_INMQ_S); 14301da177e4SLinus Torvalds he_writel(he_dev, 0x204f, G4_INMQ_L); 14311da177e4SLinus Torvalds 14321da177e4SLinus Torvalds he_writel(he_dev, 0x005f, G5_INMQ_S); 14331da177e4SLinus Torvalds he_writel(he_dev, 0x205f, G5_INMQ_L); 14341da177e4SLinus Torvalds 14351da177e4SLinus Torvalds he_writel(he_dev, 0x006f, G6_INMQ_S); 14361da177e4SLinus Torvalds he_writel(he_dev, 0x206f, G6_INMQ_L); 14371da177e4SLinus Torvalds 14381da177e4SLinus Torvalds he_writel(he_dev, 0x007f, G7_INMQ_S); 14391da177e4SLinus Torvalds he_writel(he_dev, 0x207f, G7_INMQ_L); 14401da177e4SLinus Torvalds } else { 14411da177e4SLinus Torvalds he_writel(he_dev, 0x0000, G0_INMQ_S); 14421da177e4SLinus Torvalds he_writel(he_dev, 0x0008, G0_INMQ_L); 14431da177e4SLinus Torvalds 14441da177e4SLinus Torvalds he_writel(he_dev, 0x0001, G1_INMQ_S); 14451da177e4SLinus Torvalds he_writel(he_dev, 0x0009, G1_INMQ_L); 14461da177e4SLinus Torvalds 14471da177e4SLinus Torvalds he_writel(he_dev, 0x0002, G2_INMQ_S); 14481da177e4SLinus Torvalds he_writel(he_dev, 0x000a, G2_INMQ_L); 14491da177e4SLinus Torvalds 14501da177e4SLinus Torvalds he_writel(he_dev, 0x0003, G3_INMQ_S); 14511da177e4SLinus Torvalds he_writel(he_dev, 0x000b, G3_INMQ_L); 14521da177e4SLinus Torvalds 14531da177e4SLinus Torvalds he_writel(he_dev, 0x0004, G4_INMQ_S); 14541da177e4SLinus Torvalds he_writel(he_dev, 0x000c, G4_INMQ_L); 14551da177e4SLinus Torvalds 14561da177e4SLinus Torvalds he_writel(he_dev, 0x0005, G5_INMQ_S); 14571da177e4SLinus Torvalds he_writel(he_dev, 0x000d, G5_INMQ_L); 14581da177e4SLinus Torvalds 14591da177e4SLinus Torvalds he_writel(he_dev, 0x0006, G6_INMQ_S); 14601da177e4SLinus Torvalds he_writel(he_dev, 0x000e, G6_INMQ_L); 14611da177e4SLinus Torvalds 14621da177e4SLinus Torvalds he_writel(he_dev, 0x0007, G7_INMQ_S); 14631da177e4SLinus Torvalds he_writel(he_dev, 0x000f, G7_INMQ_L); 14641da177e4SLinus Torvalds } 14651da177e4SLinus Torvalds 14661da177e4SLinus Torvalds /* 5.1.6 application tunable parameters */ 14671da177e4SLinus Torvalds 14681da177e4SLinus Torvalds he_writel(he_dev, 0x0, MCC); 14691da177e4SLinus Torvalds he_writel(he_dev, 0x0, OEC); 14701da177e4SLinus Torvalds he_writel(he_dev, 0x0, DCC); 14711da177e4SLinus Torvalds he_writel(he_dev, 0x0, CEC); 14721da177e4SLinus Torvalds 14731da177e4SLinus Torvalds /* 5.1.7 cs block initialization */ 14741da177e4SLinus Torvalds 14751da177e4SLinus Torvalds he_init_cs_block(he_dev); 14761da177e4SLinus Torvalds 14771da177e4SLinus Torvalds /* 5.1.8 cs block connection memory initialization */ 14781da177e4SLinus Torvalds 14791da177e4SLinus Torvalds if (he_init_cs_block_rcm(he_dev) < 0) 14801da177e4SLinus Torvalds return -ENOMEM; 14811da177e4SLinus Torvalds 14821da177e4SLinus Torvalds /* 5.1.10 initialize host structures */ 14831da177e4SLinus Torvalds 14841da177e4SLinus Torvalds he_init_tpdrq(he_dev); 14851da177e4SLinus Torvalds 14861da177e4SLinus Torvalds #ifdef USE_TPD_POOL 14871da177e4SLinus Torvalds he_dev->tpd_pool = pci_pool_create("tpd", he_dev->pci_dev, 14881da177e4SLinus Torvalds sizeof(struct he_tpd), TPD_ALIGNMENT, 0); 14891da177e4SLinus Torvalds if (he_dev->tpd_pool == NULL) { 14901da177e4SLinus Torvalds hprintk("unable to create tpd pci_pool\n"); 14911da177e4SLinus Torvalds return -ENOMEM; 14921da177e4SLinus Torvalds } 14931da177e4SLinus Torvalds 14941da177e4SLinus Torvalds INIT_LIST_HEAD(&he_dev->outstanding_tpds); 14951da177e4SLinus Torvalds #else 14961da177e4SLinus Torvalds he_dev->tpd_base = (void *) pci_alloc_consistent(he_dev->pci_dev, 14971da177e4SLinus Torvalds CONFIG_NUMTPDS * sizeof(struct he_tpd), &he_dev->tpd_base_phys); 14981da177e4SLinus Torvalds if (!he_dev->tpd_base) 14991da177e4SLinus Torvalds return -ENOMEM; 15001da177e4SLinus Torvalds 15011da177e4SLinus Torvalds for (i = 0; i < CONFIG_NUMTPDS; ++i) { 15021da177e4SLinus Torvalds he_dev->tpd_base[i].status = (i << TPD_ADDR_SHIFT); 15031da177e4SLinus Torvalds he_dev->tpd_base[i].inuse = 0; 15041da177e4SLinus Torvalds } 15051da177e4SLinus Torvalds 15061da177e4SLinus Torvalds he_dev->tpd_head = he_dev->tpd_base; 15071da177e4SLinus Torvalds he_dev->tpd_end = &he_dev->tpd_base[CONFIG_NUMTPDS - 1]; 15081da177e4SLinus Torvalds #endif 15091da177e4SLinus Torvalds 15101da177e4SLinus Torvalds if (he_init_group(he_dev, 0) != 0) 15111da177e4SLinus Torvalds return -ENOMEM; 15121da177e4SLinus Torvalds 15131da177e4SLinus Torvalds for (group = 1; group < HE_NUM_GROUPS; ++group) { 15141da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_S + (group * 32)); 15151da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_T + (group * 32)); 15161da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_QI + (group * 32)); 15171da177e4SLinus Torvalds he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0), 15181da177e4SLinus Torvalds G0_RBPS_BS + (group * 32)); 15191da177e4SLinus Torvalds 15201da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPL_S + (group * 32)); 15211da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPL_T + (group * 32)); 15221da177e4SLinus Torvalds he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0), 15231da177e4SLinus Torvalds G0_RBPL_QI + (group * 32)); 15241da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPL_BS + (group * 32)); 15251da177e4SLinus Torvalds 15261da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBRQ_ST + (group * 16)); 15271da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBRQ_H + (group * 16)); 15281da177e4SLinus Torvalds he_writel(he_dev, RBRQ_THRESH(0x1) | RBRQ_SIZE(0x0), 15291da177e4SLinus Torvalds G0_RBRQ_Q + (group * 16)); 15301da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBRQ_I + (group * 16)); 15311da177e4SLinus Torvalds 15321da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_TBRQ_B_T + (group * 16)); 15331da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_TBRQ_H + (group * 16)); 15341da177e4SLinus Torvalds he_writel(he_dev, TBRQ_THRESH(0x1), 15351da177e4SLinus Torvalds G0_TBRQ_THRESH + (group * 16)); 15361da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_TBRQ_S + (group * 16)); 15371da177e4SLinus Torvalds } 15381da177e4SLinus Torvalds 15391da177e4SLinus Torvalds /* host status page */ 15401da177e4SLinus Torvalds 15411da177e4SLinus Torvalds he_dev->hsp = pci_alloc_consistent(he_dev->pci_dev, 15421da177e4SLinus Torvalds sizeof(struct he_hsp), &he_dev->hsp_phys); 15431da177e4SLinus Torvalds if (he_dev->hsp == NULL) { 15441da177e4SLinus Torvalds hprintk("failed to allocate host status page\n"); 15451da177e4SLinus Torvalds return -ENOMEM; 15461da177e4SLinus Torvalds } 15471da177e4SLinus Torvalds memset(he_dev->hsp, 0, sizeof(struct he_hsp)); 15481da177e4SLinus Torvalds he_writel(he_dev, he_dev->hsp_phys, HSP_BA); 15491da177e4SLinus Torvalds 15501da177e4SLinus Torvalds /* initialize framer */ 15511da177e4SLinus Torvalds 15521da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 15531da177e4SLinus Torvalds suni_init(he_dev->atm_dev); 15541da177e4SLinus Torvalds if (he_dev->atm_dev->phy && he_dev->atm_dev->phy->start) 15551da177e4SLinus Torvalds he_dev->atm_dev->phy->start(he_dev->atm_dev); 15561da177e4SLinus Torvalds #endif /* CONFIG_ATM_HE_USE_SUNI */ 15571da177e4SLinus Torvalds 15581da177e4SLinus Torvalds if (sdh) { 15591da177e4SLinus Torvalds /* this really should be in suni.c but for now... */ 15601da177e4SLinus Torvalds int val; 15611da177e4SLinus Torvalds 15621da177e4SLinus Torvalds val = he_phy_get(he_dev->atm_dev, SUNI_TPOP_APM); 15631da177e4SLinus Torvalds val = (val & ~SUNI_TPOP_APM_S) | (SUNI_TPOP_S_SDH << SUNI_TPOP_APM_S_SHIFT); 15641da177e4SLinus Torvalds he_phy_put(he_dev->atm_dev, val, SUNI_TPOP_APM); 15651da177e4SLinus Torvalds } 15661da177e4SLinus Torvalds 15671da177e4SLinus Torvalds /* 5.1.12 enable transmit and receive */ 15681da177e4SLinus Torvalds 15691da177e4SLinus Torvalds reg = he_readl_mbox(he_dev, CS_ERCTL0); 15701da177e4SLinus Torvalds reg |= TX_ENABLE|ER_ENABLE; 15711da177e4SLinus Torvalds he_writel_mbox(he_dev, reg, CS_ERCTL0); 15721da177e4SLinus Torvalds 15731da177e4SLinus Torvalds reg = he_readl(he_dev, RC_CONFIG); 15741da177e4SLinus Torvalds reg |= RX_ENABLE; 15751da177e4SLinus Torvalds he_writel(he_dev, reg, RC_CONFIG); 15761da177e4SLinus Torvalds 15771da177e4SLinus Torvalds for (i = 0; i < HE_NUM_CS_STPER; ++i) { 15781da177e4SLinus Torvalds he_dev->cs_stper[i].inuse = 0; 15791da177e4SLinus Torvalds he_dev->cs_stper[i].pcr = -1; 15801da177e4SLinus Torvalds } 15811da177e4SLinus Torvalds he_dev->total_bw = 0; 15821da177e4SLinus Torvalds 15831da177e4SLinus Torvalds 15841da177e4SLinus Torvalds /* atm linux initialization */ 15851da177e4SLinus Torvalds 15861da177e4SLinus Torvalds he_dev->atm_dev->ci_range.vpi_bits = he_dev->vpibits; 15871da177e4SLinus Torvalds he_dev->atm_dev->ci_range.vci_bits = he_dev->vcibits; 15881da177e4SLinus Torvalds 15891da177e4SLinus Torvalds he_dev->irq_peak = 0; 15901da177e4SLinus Torvalds he_dev->rbrq_peak = 0; 15911da177e4SLinus Torvalds he_dev->rbpl_peak = 0; 15921da177e4SLinus Torvalds he_dev->tbrq_peak = 0; 15931da177e4SLinus Torvalds 15941da177e4SLinus Torvalds HPRINTK("hell bent for leather!\n"); 15951da177e4SLinus Torvalds 15961da177e4SLinus Torvalds return 0; 15971da177e4SLinus Torvalds } 15981da177e4SLinus Torvalds 15991da177e4SLinus Torvalds static void 16001da177e4SLinus Torvalds he_stop(struct he_dev *he_dev) 16011da177e4SLinus Torvalds { 16021da177e4SLinus Torvalds u16 command; 16031da177e4SLinus Torvalds u32 gen_cntl_0, reg; 16041da177e4SLinus Torvalds struct pci_dev *pci_dev; 16051da177e4SLinus Torvalds 16061da177e4SLinus Torvalds pci_dev = he_dev->pci_dev; 16071da177e4SLinus Torvalds 16081da177e4SLinus Torvalds /* disable interrupts */ 16091da177e4SLinus Torvalds 16101da177e4SLinus Torvalds if (he_dev->membase) { 16111da177e4SLinus Torvalds pci_read_config_dword(pci_dev, GEN_CNTL_0, &gen_cntl_0); 16121da177e4SLinus Torvalds gen_cntl_0 &= ~(INT_PROC_ENBL | INIT_ENB); 16131da177e4SLinus Torvalds pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0); 16141da177e4SLinus Torvalds 16151da177e4SLinus Torvalds #ifdef USE_TASKLET 16161da177e4SLinus Torvalds tasklet_disable(&he_dev->tasklet); 16171da177e4SLinus Torvalds #endif 16181da177e4SLinus Torvalds 16191da177e4SLinus Torvalds /* disable recv and transmit */ 16201da177e4SLinus Torvalds 16211da177e4SLinus Torvalds reg = he_readl_mbox(he_dev, CS_ERCTL0); 16221da177e4SLinus Torvalds reg &= ~(TX_ENABLE|ER_ENABLE); 16231da177e4SLinus Torvalds he_writel_mbox(he_dev, reg, CS_ERCTL0); 16241da177e4SLinus Torvalds 16251da177e4SLinus Torvalds reg = he_readl(he_dev, RC_CONFIG); 16261da177e4SLinus Torvalds reg &= ~(RX_ENABLE); 16271da177e4SLinus Torvalds he_writel(he_dev, reg, RC_CONFIG); 16281da177e4SLinus Torvalds } 16291da177e4SLinus Torvalds 16301da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 16311da177e4SLinus Torvalds if (he_dev->atm_dev->phy && he_dev->atm_dev->phy->stop) 16321da177e4SLinus Torvalds he_dev->atm_dev->phy->stop(he_dev->atm_dev); 16331da177e4SLinus Torvalds #endif /* CONFIG_ATM_HE_USE_SUNI */ 16341da177e4SLinus Torvalds 16351da177e4SLinus Torvalds if (he_dev->irq) 16361da177e4SLinus Torvalds free_irq(he_dev->irq, he_dev); 16371da177e4SLinus Torvalds 16381da177e4SLinus Torvalds if (he_dev->irq_base) 16391da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, (CONFIG_IRQ_SIZE+1) 16401da177e4SLinus Torvalds * sizeof(struct he_irq), he_dev->irq_base, he_dev->irq_phys); 16411da177e4SLinus Torvalds 16421da177e4SLinus Torvalds if (he_dev->hsp) 16431da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, sizeof(struct he_hsp), 16441da177e4SLinus Torvalds he_dev->hsp, he_dev->hsp_phys); 16451da177e4SLinus Torvalds 16461da177e4SLinus Torvalds if (he_dev->rbpl_base) { 16471da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 16481da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPL_SIZE; ++i) { 16491da177e4SLinus Torvalds void *cpuaddr = he_dev->rbpl_virt[i].virt; 16501da177e4SLinus Torvalds dma_addr_t dma_handle = he_dev->rbpl_base[i].phys; 16511da177e4SLinus Torvalds 16521da177e4SLinus Torvalds pci_pool_free(he_dev->rbpl_pool, cpuaddr, dma_handle); 16531da177e4SLinus Torvalds } 16541da177e4SLinus Torvalds #else 16551da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPL_SIZE 16561da177e4SLinus Torvalds * CONFIG_RBPL_BUFSIZE, he_dev->rbpl_pages, he_dev->rbpl_pages_phys); 16571da177e4SLinus Torvalds #endif 16581da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPL_SIZE 16591da177e4SLinus Torvalds * sizeof(struct he_rbp), he_dev->rbpl_base, he_dev->rbpl_phys); 16601da177e4SLinus Torvalds } 16611da177e4SLinus Torvalds 16621da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 16631da177e4SLinus Torvalds if (he_dev->rbpl_pool) 16641da177e4SLinus Torvalds pci_pool_destroy(he_dev->rbpl_pool); 16651da177e4SLinus Torvalds #endif 16661da177e4SLinus Torvalds 16671da177e4SLinus Torvalds #ifdef USE_RBPS 16681da177e4SLinus Torvalds if (he_dev->rbps_base) { 16691da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 16701da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPS_SIZE; ++i) { 16711da177e4SLinus Torvalds void *cpuaddr = he_dev->rbps_virt[i].virt; 16721da177e4SLinus Torvalds dma_addr_t dma_handle = he_dev->rbps_base[i].phys; 16731da177e4SLinus Torvalds 16741da177e4SLinus Torvalds pci_pool_free(he_dev->rbps_pool, cpuaddr, dma_handle); 16751da177e4SLinus Torvalds } 16761da177e4SLinus Torvalds #else 16771da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPS_SIZE 16781da177e4SLinus Torvalds * CONFIG_RBPS_BUFSIZE, he_dev->rbps_pages, he_dev->rbps_pages_phys); 16791da177e4SLinus Torvalds #endif 16801da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPS_SIZE 16811da177e4SLinus Torvalds * sizeof(struct he_rbp), he_dev->rbps_base, he_dev->rbps_phys); 16821da177e4SLinus Torvalds } 16831da177e4SLinus Torvalds 16841da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 16851da177e4SLinus Torvalds if (he_dev->rbps_pool) 16861da177e4SLinus Torvalds pci_pool_destroy(he_dev->rbps_pool); 16871da177e4SLinus Torvalds #endif 16881da177e4SLinus Torvalds 16891da177e4SLinus Torvalds #endif /* USE_RBPS */ 16901da177e4SLinus Torvalds 16911da177e4SLinus Torvalds if (he_dev->rbrq_base) 16921da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq), 16931da177e4SLinus Torvalds he_dev->rbrq_base, he_dev->rbrq_phys); 16941da177e4SLinus Torvalds 16951da177e4SLinus Torvalds if (he_dev->tbrq_base) 16961da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq), 16971da177e4SLinus Torvalds he_dev->tbrq_base, he_dev->tbrq_phys); 16981da177e4SLinus Torvalds 16991da177e4SLinus Torvalds if (he_dev->tpdrq_base) 17001da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq), 17011da177e4SLinus Torvalds he_dev->tpdrq_base, he_dev->tpdrq_phys); 17021da177e4SLinus Torvalds 17031da177e4SLinus Torvalds #ifdef USE_TPD_POOL 17041da177e4SLinus Torvalds if (he_dev->tpd_pool) 17051da177e4SLinus Torvalds pci_pool_destroy(he_dev->tpd_pool); 17061da177e4SLinus Torvalds #else 17071da177e4SLinus Torvalds if (he_dev->tpd_base) 17081da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_NUMTPDS * sizeof(struct he_tpd), 17091da177e4SLinus Torvalds he_dev->tpd_base, he_dev->tpd_base_phys); 17101da177e4SLinus Torvalds #endif 17111da177e4SLinus Torvalds 17121da177e4SLinus Torvalds if (he_dev->pci_dev) { 17131da177e4SLinus Torvalds pci_read_config_word(he_dev->pci_dev, PCI_COMMAND, &command); 17141da177e4SLinus Torvalds command &= ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); 17151da177e4SLinus Torvalds pci_write_config_word(he_dev->pci_dev, PCI_COMMAND, command); 17161da177e4SLinus Torvalds } 17171da177e4SLinus Torvalds 17181da177e4SLinus Torvalds if (he_dev->membase) 17191da177e4SLinus Torvalds iounmap(he_dev->membase); 17201da177e4SLinus Torvalds } 17211da177e4SLinus Torvalds 17221da177e4SLinus Torvalds static struct he_tpd * 17231da177e4SLinus Torvalds __alloc_tpd(struct he_dev *he_dev) 17241da177e4SLinus Torvalds { 17251da177e4SLinus Torvalds #ifdef USE_TPD_POOL 17261da177e4SLinus Torvalds struct he_tpd *tpd; 17271da177e4SLinus Torvalds dma_addr_t dma_handle; 17281da177e4SLinus Torvalds 17291da177e4SLinus Torvalds tpd = pci_pool_alloc(he_dev->tpd_pool, SLAB_ATOMIC|SLAB_DMA, &dma_handle); 17301da177e4SLinus Torvalds if (tpd == NULL) 17311da177e4SLinus Torvalds return NULL; 17321da177e4SLinus Torvalds 17331da177e4SLinus Torvalds tpd->status = TPD_ADDR(dma_handle); 17341da177e4SLinus Torvalds tpd->reserved = 0; 17351da177e4SLinus Torvalds tpd->iovec[0].addr = 0; tpd->iovec[0].len = 0; 17361da177e4SLinus Torvalds tpd->iovec[1].addr = 0; tpd->iovec[1].len = 0; 17371da177e4SLinus Torvalds tpd->iovec[2].addr = 0; tpd->iovec[2].len = 0; 17381da177e4SLinus Torvalds 17391da177e4SLinus Torvalds return tpd; 17401da177e4SLinus Torvalds #else 17411da177e4SLinus Torvalds int i; 17421da177e4SLinus Torvalds 17431da177e4SLinus Torvalds for (i = 0; i < CONFIG_NUMTPDS; ++i) { 17441da177e4SLinus Torvalds ++he_dev->tpd_head; 17451da177e4SLinus Torvalds if (he_dev->tpd_head > he_dev->tpd_end) { 17461da177e4SLinus Torvalds he_dev->tpd_head = he_dev->tpd_base; 17471da177e4SLinus Torvalds } 17481da177e4SLinus Torvalds 17491da177e4SLinus Torvalds if (!he_dev->tpd_head->inuse) { 17501da177e4SLinus Torvalds he_dev->tpd_head->inuse = 1; 17511da177e4SLinus Torvalds he_dev->tpd_head->status &= TPD_MASK; 17521da177e4SLinus Torvalds he_dev->tpd_head->iovec[0].addr = 0; he_dev->tpd_head->iovec[0].len = 0; 17531da177e4SLinus Torvalds he_dev->tpd_head->iovec[1].addr = 0; he_dev->tpd_head->iovec[1].len = 0; 17541da177e4SLinus Torvalds he_dev->tpd_head->iovec[2].addr = 0; he_dev->tpd_head->iovec[2].len = 0; 17551da177e4SLinus Torvalds return he_dev->tpd_head; 17561da177e4SLinus Torvalds } 17571da177e4SLinus Torvalds } 17581da177e4SLinus Torvalds hprintk("out of tpds -- increase CONFIG_NUMTPDS (%d)\n", CONFIG_NUMTPDS); 17591da177e4SLinus Torvalds return NULL; 17601da177e4SLinus Torvalds #endif 17611da177e4SLinus Torvalds } 17621da177e4SLinus Torvalds 17631da177e4SLinus Torvalds #define AAL5_LEN(buf,len) \ 17641da177e4SLinus Torvalds ((((unsigned char *)(buf))[(len)-6] << 8) | \ 17651da177e4SLinus Torvalds (((unsigned char *)(buf))[(len)-5])) 17661da177e4SLinus Torvalds 17671da177e4SLinus Torvalds /* 2.10.1.2 receive 17681da177e4SLinus Torvalds * 17691da177e4SLinus Torvalds * aal5 packets can optionally return the tcp checksum in the lower 17701da177e4SLinus Torvalds * 16 bits of the crc (RSR0_TCP_CKSUM) 17711da177e4SLinus Torvalds */ 17721da177e4SLinus Torvalds 17731da177e4SLinus Torvalds #define TCP_CKSUM(buf,len) \ 17741da177e4SLinus Torvalds ((((unsigned char *)(buf))[(len)-2] << 8) | \ 17751da177e4SLinus Torvalds (((unsigned char *)(buf))[(len-1)])) 17761da177e4SLinus Torvalds 17771da177e4SLinus Torvalds static int 17781da177e4SLinus Torvalds he_service_rbrq(struct he_dev *he_dev, int group) 17791da177e4SLinus Torvalds { 17801da177e4SLinus Torvalds struct he_rbrq *rbrq_tail = (struct he_rbrq *) 17811da177e4SLinus Torvalds ((unsigned long)he_dev->rbrq_base | 17821da177e4SLinus Torvalds he_dev->hsp->group[group].rbrq_tail); 17831da177e4SLinus Torvalds struct he_rbp *rbp = NULL; 17841da177e4SLinus Torvalds unsigned cid, lastcid = -1; 17851da177e4SLinus Torvalds unsigned buf_len = 0; 17861da177e4SLinus Torvalds struct sk_buff *skb; 17871da177e4SLinus Torvalds struct atm_vcc *vcc = NULL; 17881da177e4SLinus Torvalds struct he_vcc *he_vcc; 17891da177e4SLinus Torvalds struct he_iovec *iov; 17901da177e4SLinus Torvalds int pdus_assembled = 0; 17911da177e4SLinus Torvalds int updated = 0; 17921da177e4SLinus Torvalds 17931da177e4SLinus Torvalds read_lock(&vcc_sklist_lock); 17941da177e4SLinus Torvalds while (he_dev->rbrq_head != rbrq_tail) { 17951da177e4SLinus Torvalds ++updated; 17961da177e4SLinus Torvalds 17971da177e4SLinus Torvalds HPRINTK("%p rbrq%d 0x%x len=%d cid=0x%x %s%s%s%s%s%s\n", 17981da177e4SLinus Torvalds he_dev->rbrq_head, group, 17991da177e4SLinus Torvalds RBRQ_ADDR(he_dev->rbrq_head), 18001da177e4SLinus Torvalds RBRQ_BUFLEN(he_dev->rbrq_head), 18011da177e4SLinus Torvalds RBRQ_CID(he_dev->rbrq_head), 18021da177e4SLinus Torvalds RBRQ_CRC_ERR(he_dev->rbrq_head) ? " CRC_ERR" : "", 18031da177e4SLinus Torvalds RBRQ_LEN_ERR(he_dev->rbrq_head) ? " LEN_ERR" : "", 18041da177e4SLinus Torvalds RBRQ_END_PDU(he_dev->rbrq_head) ? " END_PDU" : "", 18051da177e4SLinus Torvalds RBRQ_AAL5_PROT(he_dev->rbrq_head) ? " AAL5_PROT" : "", 18061da177e4SLinus Torvalds RBRQ_CON_CLOSED(he_dev->rbrq_head) ? " CON_CLOSED" : "", 18071da177e4SLinus Torvalds RBRQ_HBUF_ERR(he_dev->rbrq_head) ? " HBUF_ERR" : ""); 18081da177e4SLinus Torvalds 18091da177e4SLinus Torvalds #ifdef USE_RBPS 18101da177e4SLinus Torvalds if (RBRQ_ADDR(he_dev->rbrq_head) & RBP_SMALLBUF) 18111da177e4SLinus Torvalds rbp = &he_dev->rbps_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))]; 18121da177e4SLinus Torvalds else 18131da177e4SLinus Torvalds #endif 18141da177e4SLinus Torvalds rbp = &he_dev->rbpl_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))]; 18151da177e4SLinus Torvalds 18161da177e4SLinus Torvalds buf_len = RBRQ_BUFLEN(he_dev->rbrq_head) * 4; 18171da177e4SLinus Torvalds cid = RBRQ_CID(he_dev->rbrq_head); 18181da177e4SLinus Torvalds 18191da177e4SLinus Torvalds if (cid != lastcid) 18201da177e4SLinus Torvalds vcc = __find_vcc(he_dev, cid); 18211da177e4SLinus Torvalds lastcid = cid; 18221da177e4SLinus Torvalds 18231da177e4SLinus Torvalds if (vcc == NULL) { 18241da177e4SLinus Torvalds hprintk("vcc == NULL (cid 0x%x)\n", cid); 18251da177e4SLinus Torvalds if (!RBRQ_HBUF_ERR(he_dev->rbrq_head)) 18261da177e4SLinus Torvalds rbp->status &= ~RBP_LOANED; 18271da177e4SLinus Torvalds 18281da177e4SLinus Torvalds goto next_rbrq_entry; 18291da177e4SLinus Torvalds } 18301da177e4SLinus Torvalds 18311da177e4SLinus Torvalds he_vcc = HE_VCC(vcc); 18321da177e4SLinus Torvalds if (he_vcc == NULL) { 18331da177e4SLinus Torvalds hprintk("he_vcc == NULL (cid 0x%x)\n", cid); 18341da177e4SLinus Torvalds if (!RBRQ_HBUF_ERR(he_dev->rbrq_head)) 18351da177e4SLinus Torvalds rbp->status &= ~RBP_LOANED; 18361da177e4SLinus Torvalds goto next_rbrq_entry; 18371da177e4SLinus Torvalds } 18381da177e4SLinus Torvalds 18391da177e4SLinus Torvalds if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) { 18401da177e4SLinus Torvalds hprintk("HBUF_ERR! (cid 0x%x)\n", cid); 18411da177e4SLinus Torvalds atomic_inc(&vcc->stats->rx_drop); 18421da177e4SLinus Torvalds goto return_host_buffers; 18431da177e4SLinus Torvalds } 18441da177e4SLinus Torvalds 18451da177e4SLinus Torvalds he_vcc->iov_tail->iov_base = RBRQ_ADDR(he_dev->rbrq_head); 18461da177e4SLinus Torvalds he_vcc->iov_tail->iov_len = buf_len; 18471da177e4SLinus Torvalds he_vcc->pdu_len += buf_len; 18481da177e4SLinus Torvalds ++he_vcc->iov_tail; 18491da177e4SLinus Torvalds 18501da177e4SLinus Torvalds if (RBRQ_CON_CLOSED(he_dev->rbrq_head)) { 18511da177e4SLinus Torvalds lastcid = -1; 18521da177e4SLinus Torvalds HPRINTK("wake_up rx_waitq (cid 0x%x)\n", cid); 18531da177e4SLinus Torvalds wake_up(&he_vcc->rx_waitq); 18541da177e4SLinus Torvalds goto return_host_buffers; 18551da177e4SLinus Torvalds } 18561da177e4SLinus Torvalds 18571da177e4SLinus Torvalds #ifdef notdef 18581da177e4SLinus Torvalds if ((he_vcc->iov_tail - he_vcc->iov_head) > HE_MAXIOV) { 18591da177e4SLinus Torvalds hprintk("iovec full! cid 0x%x\n", cid); 18601da177e4SLinus Torvalds goto return_host_buffers; 18611da177e4SLinus Torvalds } 18621da177e4SLinus Torvalds #endif 18631da177e4SLinus Torvalds if (!RBRQ_END_PDU(he_dev->rbrq_head)) 18641da177e4SLinus Torvalds goto next_rbrq_entry; 18651da177e4SLinus Torvalds 18661da177e4SLinus Torvalds if (RBRQ_LEN_ERR(he_dev->rbrq_head) 18671da177e4SLinus Torvalds || RBRQ_CRC_ERR(he_dev->rbrq_head)) { 18681da177e4SLinus Torvalds HPRINTK("%s%s (%d.%d)\n", 18691da177e4SLinus Torvalds RBRQ_CRC_ERR(he_dev->rbrq_head) 18701da177e4SLinus Torvalds ? "CRC_ERR " : "", 18711da177e4SLinus Torvalds RBRQ_LEN_ERR(he_dev->rbrq_head) 18721da177e4SLinus Torvalds ? "LEN_ERR" : "", 18731da177e4SLinus Torvalds vcc->vpi, vcc->vci); 18741da177e4SLinus Torvalds atomic_inc(&vcc->stats->rx_err); 18751da177e4SLinus Torvalds goto return_host_buffers; 18761da177e4SLinus Torvalds } 18771da177e4SLinus Torvalds 18781da177e4SLinus Torvalds skb = atm_alloc_charge(vcc, he_vcc->pdu_len + rx_skb_reserve, 18791da177e4SLinus Torvalds GFP_ATOMIC); 18801da177e4SLinus Torvalds if (!skb) { 18811da177e4SLinus Torvalds HPRINTK("charge failed (%d.%d)\n", vcc->vpi, vcc->vci); 18821da177e4SLinus Torvalds goto return_host_buffers; 18831da177e4SLinus Torvalds } 18841da177e4SLinus Torvalds 18851da177e4SLinus Torvalds if (rx_skb_reserve > 0) 18861da177e4SLinus Torvalds skb_reserve(skb, rx_skb_reserve); 18871da177e4SLinus Torvalds 1888a61bbcf2SPatrick McHardy __net_timestamp(skb); 18891da177e4SLinus Torvalds 18901da177e4SLinus Torvalds for (iov = he_vcc->iov_head; 18911da177e4SLinus Torvalds iov < he_vcc->iov_tail; ++iov) { 18921da177e4SLinus Torvalds #ifdef USE_RBPS 18931da177e4SLinus Torvalds if (iov->iov_base & RBP_SMALLBUF) 18941da177e4SLinus Torvalds memcpy(skb_put(skb, iov->iov_len), 18951da177e4SLinus Torvalds he_dev->rbps_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len); 18961da177e4SLinus Torvalds else 18971da177e4SLinus Torvalds #endif 18981da177e4SLinus Torvalds memcpy(skb_put(skb, iov->iov_len), 18991da177e4SLinus Torvalds he_dev->rbpl_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len); 19001da177e4SLinus Torvalds } 19011da177e4SLinus Torvalds 19021da177e4SLinus Torvalds switch (vcc->qos.aal) { 19031da177e4SLinus Torvalds case ATM_AAL0: 19041da177e4SLinus Torvalds /* 2.10.1.5 raw cell receive */ 19051da177e4SLinus Torvalds skb->len = ATM_AAL0_SDU; 19061da177e4SLinus Torvalds skb->tail = skb->data + skb->len; 19071da177e4SLinus Torvalds break; 19081da177e4SLinus Torvalds case ATM_AAL5: 19091da177e4SLinus Torvalds /* 2.10.1.2 aal5 receive */ 19101da177e4SLinus Torvalds 19111da177e4SLinus Torvalds skb->len = AAL5_LEN(skb->data, he_vcc->pdu_len); 19121da177e4SLinus Torvalds skb->tail = skb->data + skb->len; 19131da177e4SLinus Torvalds #ifdef USE_CHECKSUM_HW 19141da177e4SLinus Torvalds if (vcc->vpi == 0 && vcc->vci >= ATM_NOT_RSV_VCI) { 191584fa7933SPatrick McHardy skb->ip_summed = CHECKSUM_COMPLETE; 19161da177e4SLinus Torvalds skb->csum = TCP_CKSUM(skb->data, 19171da177e4SLinus Torvalds he_vcc->pdu_len); 19181da177e4SLinus Torvalds } 19191da177e4SLinus Torvalds #endif 19201da177e4SLinus Torvalds break; 19211da177e4SLinus Torvalds } 19221da177e4SLinus Torvalds 19231da177e4SLinus Torvalds #ifdef should_never_happen 19241da177e4SLinus Torvalds if (skb->len > vcc->qos.rxtp.max_sdu) 19251da177e4SLinus Torvalds hprintk("pdu_len (%d) > vcc->qos.rxtp.max_sdu (%d)! cid 0x%x\n", skb->len, vcc->qos.rxtp.max_sdu, cid); 19261da177e4SLinus Torvalds #endif 19271da177e4SLinus Torvalds 19281da177e4SLinus Torvalds #ifdef notdef 19291da177e4SLinus Torvalds ATM_SKB(skb)->vcc = vcc; 19301da177e4SLinus Torvalds #endif 19317f81dc00SChas Williams spin_unlock(&he_dev->global_lock); 19321da177e4SLinus Torvalds vcc->push(vcc, skb); 19337f81dc00SChas Williams spin_lock(&he_dev->global_lock); 19341da177e4SLinus Torvalds 19351da177e4SLinus Torvalds atomic_inc(&vcc->stats->rx); 19361da177e4SLinus Torvalds 19371da177e4SLinus Torvalds return_host_buffers: 19381da177e4SLinus Torvalds ++pdus_assembled; 19391da177e4SLinus Torvalds 19401da177e4SLinus Torvalds for (iov = he_vcc->iov_head; 19411da177e4SLinus Torvalds iov < he_vcc->iov_tail; ++iov) { 19421da177e4SLinus Torvalds #ifdef USE_RBPS 19431da177e4SLinus Torvalds if (iov->iov_base & RBP_SMALLBUF) 19441da177e4SLinus Torvalds rbp = &he_dev->rbps_base[RBP_INDEX(iov->iov_base)]; 19451da177e4SLinus Torvalds else 19461da177e4SLinus Torvalds #endif 19471da177e4SLinus Torvalds rbp = &he_dev->rbpl_base[RBP_INDEX(iov->iov_base)]; 19481da177e4SLinus Torvalds 19491da177e4SLinus Torvalds rbp->status &= ~RBP_LOANED; 19501da177e4SLinus Torvalds } 19511da177e4SLinus Torvalds 19521da177e4SLinus Torvalds he_vcc->iov_tail = he_vcc->iov_head; 19531da177e4SLinus Torvalds he_vcc->pdu_len = 0; 19541da177e4SLinus Torvalds 19551da177e4SLinus Torvalds next_rbrq_entry: 19561da177e4SLinus Torvalds he_dev->rbrq_head = (struct he_rbrq *) 19571da177e4SLinus Torvalds ((unsigned long) he_dev->rbrq_base | 19581da177e4SLinus Torvalds RBRQ_MASK(++he_dev->rbrq_head)); 19591da177e4SLinus Torvalds 19601da177e4SLinus Torvalds } 19611da177e4SLinus Torvalds read_unlock(&vcc_sklist_lock); 19621da177e4SLinus Torvalds 19631da177e4SLinus Torvalds if (updated) { 19641da177e4SLinus Torvalds if (updated > he_dev->rbrq_peak) 19651da177e4SLinus Torvalds he_dev->rbrq_peak = updated; 19661da177e4SLinus Torvalds 19671da177e4SLinus Torvalds he_writel(he_dev, RBRQ_MASK(he_dev->rbrq_head), 19681da177e4SLinus Torvalds G0_RBRQ_H + (group * 16)); 19691da177e4SLinus Torvalds } 19701da177e4SLinus Torvalds 19711da177e4SLinus Torvalds return pdus_assembled; 19721da177e4SLinus Torvalds } 19731da177e4SLinus Torvalds 19741da177e4SLinus Torvalds static void 19751da177e4SLinus Torvalds he_service_tbrq(struct he_dev *he_dev, int group) 19761da177e4SLinus Torvalds { 19771da177e4SLinus Torvalds struct he_tbrq *tbrq_tail = (struct he_tbrq *) 19781da177e4SLinus Torvalds ((unsigned long)he_dev->tbrq_base | 19791da177e4SLinus Torvalds he_dev->hsp->group[group].tbrq_tail); 19801da177e4SLinus Torvalds struct he_tpd *tpd; 19811da177e4SLinus Torvalds int slot, updated = 0; 19821da177e4SLinus Torvalds #ifdef USE_TPD_POOL 19831da177e4SLinus Torvalds struct he_tpd *__tpd; 19841da177e4SLinus Torvalds #endif 19851da177e4SLinus Torvalds 19861da177e4SLinus Torvalds /* 2.1.6 transmit buffer return queue */ 19871da177e4SLinus Torvalds 19881da177e4SLinus Torvalds while (he_dev->tbrq_head != tbrq_tail) { 19891da177e4SLinus Torvalds ++updated; 19901da177e4SLinus Torvalds 19911da177e4SLinus Torvalds HPRINTK("tbrq%d 0x%x%s%s\n", 19921da177e4SLinus Torvalds group, 19931da177e4SLinus Torvalds TBRQ_TPD(he_dev->tbrq_head), 19941da177e4SLinus Torvalds TBRQ_EOS(he_dev->tbrq_head) ? " EOS" : "", 19951da177e4SLinus Torvalds TBRQ_MULTIPLE(he_dev->tbrq_head) ? " MULTIPLE" : ""); 19961da177e4SLinus Torvalds #ifdef USE_TPD_POOL 19971da177e4SLinus Torvalds tpd = NULL; 19981da177e4SLinus Torvalds list_for_each_entry(__tpd, &he_dev->outstanding_tpds, entry) { 19991da177e4SLinus Torvalds if (TPD_ADDR(__tpd->status) == TBRQ_TPD(he_dev->tbrq_head)) { 20001da177e4SLinus Torvalds tpd = __tpd; 20011da177e4SLinus Torvalds list_del(&__tpd->entry); 20021da177e4SLinus Torvalds break; 20031da177e4SLinus Torvalds } 20041da177e4SLinus Torvalds } 20051da177e4SLinus Torvalds 20061da177e4SLinus Torvalds if (tpd == NULL) { 20071da177e4SLinus Torvalds hprintk("unable to locate tpd for dma buffer %x\n", 20081da177e4SLinus Torvalds TBRQ_TPD(he_dev->tbrq_head)); 20091da177e4SLinus Torvalds goto next_tbrq_entry; 20101da177e4SLinus Torvalds } 20111da177e4SLinus Torvalds #else 20121da177e4SLinus Torvalds tpd = &he_dev->tpd_base[ TPD_INDEX(TBRQ_TPD(he_dev->tbrq_head)) ]; 20131da177e4SLinus Torvalds #endif 20141da177e4SLinus Torvalds 20151da177e4SLinus Torvalds if (TBRQ_EOS(he_dev->tbrq_head)) { 20161da177e4SLinus Torvalds HPRINTK("wake_up(tx_waitq) cid 0x%x\n", 20171da177e4SLinus Torvalds he_mkcid(he_dev, tpd->vcc->vpi, tpd->vcc->vci)); 20181da177e4SLinus Torvalds if (tpd->vcc) 20191da177e4SLinus Torvalds wake_up(&HE_VCC(tpd->vcc)->tx_waitq); 20201da177e4SLinus Torvalds 20211da177e4SLinus Torvalds goto next_tbrq_entry; 20221da177e4SLinus Torvalds } 20231da177e4SLinus Torvalds 20241da177e4SLinus Torvalds for (slot = 0; slot < TPD_MAXIOV; ++slot) { 20251da177e4SLinus Torvalds if (tpd->iovec[slot].addr) 20261da177e4SLinus Torvalds pci_unmap_single(he_dev->pci_dev, 20271da177e4SLinus Torvalds tpd->iovec[slot].addr, 20281da177e4SLinus Torvalds tpd->iovec[slot].len & TPD_LEN_MASK, 20291da177e4SLinus Torvalds PCI_DMA_TODEVICE); 20301da177e4SLinus Torvalds if (tpd->iovec[slot].len & TPD_LST) 20311da177e4SLinus Torvalds break; 20321da177e4SLinus Torvalds 20331da177e4SLinus Torvalds } 20341da177e4SLinus Torvalds 20351da177e4SLinus Torvalds if (tpd->skb) { /* && !TBRQ_MULTIPLE(he_dev->tbrq_head) */ 20361da177e4SLinus Torvalds if (tpd->vcc && tpd->vcc->pop) 20371da177e4SLinus Torvalds tpd->vcc->pop(tpd->vcc, tpd->skb); 20381da177e4SLinus Torvalds else 20391da177e4SLinus Torvalds dev_kfree_skb_any(tpd->skb); 20401da177e4SLinus Torvalds } 20411da177e4SLinus Torvalds 20421da177e4SLinus Torvalds next_tbrq_entry: 20431da177e4SLinus Torvalds #ifdef USE_TPD_POOL 20441da177e4SLinus Torvalds if (tpd) 20451da177e4SLinus Torvalds pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); 20461da177e4SLinus Torvalds #else 20471da177e4SLinus Torvalds tpd->inuse = 0; 20481da177e4SLinus Torvalds #endif 20491da177e4SLinus Torvalds he_dev->tbrq_head = (struct he_tbrq *) 20501da177e4SLinus Torvalds ((unsigned long) he_dev->tbrq_base | 20511da177e4SLinus Torvalds TBRQ_MASK(++he_dev->tbrq_head)); 20521da177e4SLinus Torvalds } 20531da177e4SLinus Torvalds 20541da177e4SLinus Torvalds if (updated) { 20551da177e4SLinus Torvalds if (updated > he_dev->tbrq_peak) 20561da177e4SLinus Torvalds he_dev->tbrq_peak = updated; 20571da177e4SLinus Torvalds 20581da177e4SLinus Torvalds he_writel(he_dev, TBRQ_MASK(he_dev->tbrq_head), 20591da177e4SLinus Torvalds G0_TBRQ_H + (group * 16)); 20601da177e4SLinus Torvalds } 20611da177e4SLinus Torvalds } 20621da177e4SLinus Torvalds 20631da177e4SLinus Torvalds 20641da177e4SLinus Torvalds static void 20651da177e4SLinus Torvalds he_service_rbpl(struct he_dev *he_dev, int group) 20661da177e4SLinus Torvalds { 20671da177e4SLinus Torvalds struct he_rbp *newtail; 20681da177e4SLinus Torvalds struct he_rbp *rbpl_head; 20691da177e4SLinus Torvalds int moved = 0; 20701da177e4SLinus Torvalds 20711da177e4SLinus Torvalds rbpl_head = (struct he_rbp *) ((unsigned long)he_dev->rbpl_base | 20721da177e4SLinus Torvalds RBPL_MASK(he_readl(he_dev, G0_RBPL_S))); 20731da177e4SLinus Torvalds 20741da177e4SLinus Torvalds for (;;) { 20751da177e4SLinus Torvalds newtail = (struct he_rbp *) ((unsigned long)he_dev->rbpl_base | 20761da177e4SLinus Torvalds RBPL_MASK(he_dev->rbpl_tail+1)); 20771da177e4SLinus Torvalds 20781da177e4SLinus Torvalds /* table 3.42 -- rbpl_tail should never be set to rbpl_head */ 20791da177e4SLinus Torvalds if ((newtail == rbpl_head) || (newtail->status & RBP_LOANED)) 20801da177e4SLinus Torvalds break; 20811da177e4SLinus Torvalds 20821da177e4SLinus Torvalds newtail->status |= RBP_LOANED; 20831da177e4SLinus Torvalds he_dev->rbpl_tail = newtail; 20841da177e4SLinus Torvalds ++moved; 20851da177e4SLinus Torvalds } 20861da177e4SLinus Torvalds 20871da177e4SLinus Torvalds if (moved) 20881da177e4SLinus Torvalds he_writel(he_dev, RBPL_MASK(he_dev->rbpl_tail), G0_RBPL_T); 20891da177e4SLinus Torvalds } 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds #ifdef USE_RBPS 20921da177e4SLinus Torvalds static void 20931da177e4SLinus Torvalds he_service_rbps(struct he_dev *he_dev, int group) 20941da177e4SLinus Torvalds { 20951da177e4SLinus Torvalds struct he_rbp *newtail; 20961da177e4SLinus Torvalds struct he_rbp *rbps_head; 20971da177e4SLinus Torvalds int moved = 0; 20981da177e4SLinus Torvalds 20991da177e4SLinus Torvalds rbps_head = (struct he_rbp *) ((unsigned long)he_dev->rbps_base | 21001da177e4SLinus Torvalds RBPS_MASK(he_readl(he_dev, G0_RBPS_S))); 21011da177e4SLinus Torvalds 21021da177e4SLinus Torvalds for (;;) { 21031da177e4SLinus Torvalds newtail = (struct he_rbp *) ((unsigned long)he_dev->rbps_base | 21041da177e4SLinus Torvalds RBPS_MASK(he_dev->rbps_tail+1)); 21051da177e4SLinus Torvalds 21061da177e4SLinus Torvalds /* table 3.42 -- rbps_tail should never be set to rbps_head */ 21071da177e4SLinus Torvalds if ((newtail == rbps_head) || (newtail->status & RBP_LOANED)) 21081da177e4SLinus Torvalds break; 21091da177e4SLinus Torvalds 21101da177e4SLinus Torvalds newtail->status |= RBP_LOANED; 21111da177e4SLinus Torvalds he_dev->rbps_tail = newtail; 21121da177e4SLinus Torvalds ++moved; 21131da177e4SLinus Torvalds } 21141da177e4SLinus Torvalds 21151da177e4SLinus Torvalds if (moved) 21161da177e4SLinus Torvalds he_writel(he_dev, RBPS_MASK(he_dev->rbps_tail), G0_RBPS_T); 21171da177e4SLinus Torvalds } 21181da177e4SLinus Torvalds #endif /* USE_RBPS */ 21191da177e4SLinus Torvalds 21201da177e4SLinus Torvalds static void 21211da177e4SLinus Torvalds he_tasklet(unsigned long data) 21221da177e4SLinus Torvalds { 21231da177e4SLinus Torvalds unsigned long flags; 21241da177e4SLinus Torvalds struct he_dev *he_dev = (struct he_dev *) data; 21251da177e4SLinus Torvalds int group, type; 21261da177e4SLinus Torvalds int updated = 0; 21271da177e4SLinus Torvalds 21281da177e4SLinus Torvalds HPRINTK("tasklet (0x%lx)\n", data); 21291da177e4SLinus Torvalds #ifdef USE_TASKLET 21301da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 21311da177e4SLinus Torvalds #endif 21321da177e4SLinus Torvalds 21331da177e4SLinus Torvalds while (he_dev->irq_head != he_dev->irq_tail) { 21341da177e4SLinus Torvalds ++updated; 21351da177e4SLinus Torvalds 21361da177e4SLinus Torvalds type = ITYPE_TYPE(he_dev->irq_head->isw); 21371da177e4SLinus Torvalds group = ITYPE_GROUP(he_dev->irq_head->isw); 21381da177e4SLinus Torvalds 21391da177e4SLinus Torvalds switch (type) { 21401da177e4SLinus Torvalds case ITYPE_RBRQ_THRESH: 21411da177e4SLinus Torvalds HPRINTK("rbrq%d threshold\n", group); 21421da177e4SLinus Torvalds /* fall through */ 21431da177e4SLinus Torvalds case ITYPE_RBRQ_TIMER: 21441da177e4SLinus Torvalds if (he_service_rbrq(he_dev, group)) { 21451da177e4SLinus Torvalds he_service_rbpl(he_dev, group); 21461da177e4SLinus Torvalds #ifdef USE_RBPS 21471da177e4SLinus Torvalds he_service_rbps(he_dev, group); 21481da177e4SLinus Torvalds #endif /* USE_RBPS */ 21491da177e4SLinus Torvalds } 21501da177e4SLinus Torvalds break; 21511da177e4SLinus Torvalds case ITYPE_TBRQ_THRESH: 21521da177e4SLinus Torvalds HPRINTK("tbrq%d threshold\n", group); 21531da177e4SLinus Torvalds /* fall through */ 21541da177e4SLinus Torvalds case ITYPE_TPD_COMPLETE: 21551da177e4SLinus Torvalds he_service_tbrq(he_dev, group); 21561da177e4SLinus Torvalds break; 21571da177e4SLinus Torvalds case ITYPE_RBPL_THRESH: 21581da177e4SLinus Torvalds he_service_rbpl(he_dev, group); 21591da177e4SLinus Torvalds break; 21601da177e4SLinus Torvalds case ITYPE_RBPS_THRESH: 21611da177e4SLinus Torvalds #ifdef USE_RBPS 21621da177e4SLinus Torvalds he_service_rbps(he_dev, group); 21631da177e4SLinus Torvalds #endif /* USE_RBPS */ 21641da177e4SLinus Torvalds break; 21651da177e4SLinus Torvalds case ITYPE_PHY: 21661da177e4SLinus Torvalds HPRINTK("phy interrupt\n"); 21671da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 21681da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 21691da177e4SLinus Torvalds if (he_dev->atm_dev->phy && he_dev->atm_dev->phy->interrupt) 21701da177e4SLinus Torvalds he_dev->atm_dev->phy->interrupt(he_dev->atm_dev); 21711da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 21721da177e4SLinus Torvalds #endif 21731da177e4SLinus Torvalds break; 21741da177e4SLinus Torvalds case ITYPE_OTHER: 21751da177e4SLinus Torvalds switch (type|group) { 21761da177e4SLinus Torvalds case ITYPE_PARITY: 21771da177e4SLinus Torvalds hprintk("parity error\n"); 21781da177e4SLinus Torvalds break; 21791da177e4SLinus Torvalds case ITYPE_ABORT: 21801da177e4SLinus Torvalds hprintk("abort 0x%x\n", he_readl(he_dev, ABORT_ADDR)); 21811da177e4SLinus Torvalds break; 21821da177e4SLinus Torvalds } 21831da177e4SLinus Torvalds break; 21841da177e4SLinus Torvalds case ITYPE_TYPE(ITYPE_INVALID): 21851da177e4SLinus Torvalds /* see 8.1.1 -- check all queues */ 21861da177e4SLinus Torvalds 21871da177e4SLinus Torvalds HPRINTK("isw not updated 0x%x\n", he_dev->irq_head->isw); 21881da177e4SLinus Torvalds 21891da177e4SLinus Torvalds he_service_rbrq(he_dev, 0); 21901da177e4SLinus Torvalds he_service_rbpl(he_dev, 0); 21911da177e4SLinus Torvalds #ifdef USE_RBPS 21921da177e4SLinus Torvalds he_service_rbps(he_dev, 0); 21931da177e4SLinus Torvalds #endif /* USE_RBPS */ 21941da177e4SLinus Torvalds he_service_tbrq(he_dev, 0); 21951da177e4SLinus Torvalds break; 21961da177e4SLinus Torvalds default: 21971da177e4SLinus Torvalds hprintk("bad isw 0x%x?\n", he_dev->irq_head->isw); 21981da177e4SLinus Torvalds } 21991da177e4SLinus Torvalds 22001da177e4SLinus Torvalds he_dev->irq_head->isw = ITYPE_INVALID; 22011da177e4SLinus Torvalds 22021da177e4SLinus Torvalds he_dev->irq_head = (struct he_irq *) NEXT_ENTRY(he_dev->irq_base, he_dev->irq_head, IRQ_MASK); 22031da177e4SLinus Torvalds } 22041da177e4SLinus Torvalds 22051da177e4SLinus Torvalds if (updated) { 22061da177e4SLinus Torvalds if (updated > he_dev->irq_peak) 22071da177e4SLinus Torvalds he_dev->irq_peak = updated; 22081da177e4SLinus Torvalds 22091da177e4SLinus Torvalds he_writel(he_dev, 22101da177e4SLinus Torvalds IRQ_SIZE(CONFIG_IRQ_SIZE) | 22111da177e4SLinus Torvalds IRQ_THRESH(CONFIG_IRQ_THRESH) | 22121da177e4SLinus Torvalds IRQ_TAIL(he_dev->irq_tail), IRQ0_HEAD); 22131da177e4SLinus Torvalds (void) he_readl(he_dev, INT_FIFO); /* 8.1.2 controller errata; flush posted writes */ 22141da177e4SLinus Torvalds } 22151da177e4SLinus Torvalds #ifdef USE_TASKLET 22161da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 22171da177e4SLinus Torvalds #endif 22181da177e4SLinus Torvalds } 22191da177e4SLinus Torvalds 22201da177e4SLinus Torvalds static irqreturn_t 22211da177e4SLinus Torvalds he_irq_handler(int irq, void *dev_id, struct pt_regs *regs) 22221da177e4SLinus Torvalds { 22231da177e4SLinus Torvalds unsigned long flags; 22241da177e4SLinus Torvalds struct he_dev *he_dev = (struct he_dev * )dev_id; 22251da177e4SLinus Torvalds int handled = 0; 22261da177e4SLinus Torvalds 22271da177e4SLinus Torvalds if (he_dev == NULL) 22281da177e4SLinus Torvalds return IRQ_NONE; 22291da177e4SLinus Torvalds 22301da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds he_dev->irq_tail = (struct he_irq *) (((unsigned long)he_dev->irq_base) | 22331da177e4SLinus Torvalds (*he_dev->irq_tailoffset << 2)); 22341da177e4SLinus Torvalds 22351da177e4SLinus Torvalds if (he_dev->irq_tail == he_dev->irq_head) { 22361da177e4SLinus Torvalds HPRINTK("tailoffset not updated?\n"); 22371da177e4SLinus Torvalds he_dev->irq_tail = (struct he_irq *) ((unsigned long)he_dev->irq_base | 22381da177e4SLinus Torvalds ((he_readl(he_dev, IRQ0_BASE) & IRQ_MASK) << 2)); 22391da177e4SLinus Torvalds (void) he_readl(he_dev, INT_FIFO); /* 8.1.2 controller errata */ 22401da177e4SLinus Torvalds } 22411da177e4SLinus Torvalds 22421da177e4SLinus Torvalds #ifdef DEBUG 22431da177e4SLinus Torvalds if (he_dev->irq_head == he_dev->irq_tail /* && !IRQ_PENDING */) 22441da177e4SLinus Torvalds hprintk("spurious (or shared) interrupt?\n"); 22451da177e4SLinus Torvalds #endif 22461da177e4SLinus Torvalds 22471da177e4SLinus Torvalds if (he_dev->irq_head != he_dev->irq_tail) { 22481da177e4SLinus Torvalds handled = 1; 22491da177e4SLinus Torvalds #ifdef USE_TASKLET 22501da177e4SLinus Torvalds tasklet_schedule(&he_dev->tasklet); 22511da177e4SLinus Torvalds #else 22521da177e4SLinus Torvalds he_tasklet((unsigned long) he_dev); 22531da177e4SLinus Torvalds #endif 22541da177e4SLinus Torvalds he_writel(he_dev, INT_CLEAR_A, INT_FIFO); /* clear interrupt */ 22551da177e4SLinus Torvalds (void) he_readl(he_dev, INT_FIFO); /* flush posted writes */ 22561da177e4SLinus Torvalds } 22571da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 22581da177e4SLinus Torvalds return IRQ_RETVAL(handled); 22591da177e4SLinus Torvalds 22601da177e4SLinus Torvalds } 22611da177e4SLinus Torvalds 22621da177e4SLinus Torvalds static __inline__ void 22631da177e4SLinus Torvalds __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) 22641da177e4SLinus Torvalds { 22651da177e4SLinus Torvalds struct he_tpdrq *new_tail; 22661da177e4SLinus Torvalds 22671da177e4SLinus Torvalds HPRINTK("tpdrq %p cid 0x%x -> tpdrq_tail %p\n", 22681da177e4SLinus Torvalds tpd, cid, he_dev->tpdrq_tail); 22691da177e4SLinus Torvalds 22701da177e4SLinus Torvalds /* new_tail = he_dev->tpdrq_tail; */ 22711da177e4SLinus Torvalds new_tail = (struct he_tpdrq *) ((unsigned long) he_dev->tpdrq_base | 22721da177e4SLinus Torvalds TPDRQ_MASK(he_dev->tpdrq_tail+1)); 22731da177e4SLinus Torvalds 22741da177e4SLinus Torvalds /* 22751da177e4SLinus Torvalds * check to see if we are about to set the tail == head 22761da177e4SLinus Torvalds * if true, update the head pointer from the adapter 22771da177e4SLinus Torvalds * to see if this is really the case (reading the queue 22781da177e4SLinus Torvalds * head for every enqueue would be unnecessarily slow) 22791da177e4SLinus Torvalds */ 22801da177e4SLinus Torvalds 22811da177e4SLinus Torvalds if (new_tail == he_dev->tpdrq_head) { 22821da177e4SLinus Torvalds he_dev->tpdrq_head = (struct he_tpdrq *) 22831da177e4SLinus Torvalds (((unsigned long)he_dev->tpdrq_base) | 22841da177e4SLinus Torvalds TPDRQ_MASK(he_readl(he_dev, TPDRQ_B_H))); 22851da177e4SLinus Torvalds 22861da177e4SLinus Torvalds if (new_tail == he_dev->tpdrq_head) { 2287d730e103SChas Williams int slot; 2288d730e103SChas Williams 22891da177e4SLinus Torvalds hprintk("tpdrq full (cid 0x%x)\n", cid); 22901da177e4SLinus Torvalds /* 22911da177e4SLinus Torvalds * FIXME 22921da177e4SLinus Torvalds * push tpd onto a transmit backlog queue 22931da177e4SLinus Torvalds * after service_tbrq, service the backlog 22941da177e4SLinus Torvalds * for now, we just drop the pdu 22951da177e4SLinus Torvalds */ 2296d730e103SChas Williams for (slot = 0; slot < TPD_MAXIOV; ++slot) { 2297d730e103SChas Williams if (tpd->iovec[slot].addr) 2298d730e103SChas Williams pci_unmap_single(he_dev->pci_dev, 2299d730e103SChas Williams tpd->iovec[slot].addr, 2300d730e103SChas Williams tpd->iovec[slot].len & TPD_LEN_MASK, 2301d730e103SChas Williams PCI_DMA_TODEVICE); 2302d730e103SChas Williams } 23031da177e4SLinus Torvalds if (tpd->skb) { 23041da177e4SLinus Torvalds if (tpd->vcc->pop) 23051da177e4SLinus Torvalds tpd->vcc->pop(tpd->vcc, tpd->skb); 23061da177e4SLinus Torvalds else 23071da177e4SLinus Torvalds dev_kfree_skb_any(tpd->skb); 23081da177e4SLinus Torvalds atomic_inc(&tpd->vcc->stats->tx_err); 23091da177e4SLinus Torvalds } 23101da177e4SLinus Torvalds #ifdef USE_TPD_POOL 23111da177e4SLinus Torvalds pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); 23121da177e4SLinus Torvalds #else 23131da177e4SLinus Torvalds tpd->inuse = 0; 23141da177e4SLinus Torvalds #endif 23151da177e4SLinus Torvalds return; 23161da177e4SLinus Torvalds } 23171da177e4SLinus Torvalds } 23181da177e4SLinus Torvalds 23191da177e4SLinus Torvalds /* 2.1.5 transmit packet descriptor ready queue */ 23201da177e4SLinus Torvalds #ifdef USE_TPD_POOL 23211da177e4SLinus Torvalds list_add_tail(&tpd->entry, &he_dev->outstanding_tpds); 23221da177e4SLinus Torvalds he_dev->tpdrq_tail->tpd = TPD_ADDR(tpd->status); 23231da177e4SLinus Torvalds #else 23241da177e4SLinus Torvalds he_dev->tpdrq_tail->tpd = he_dev->tpd_base_phys + 23251da177e4SLinus Torvalds (TPD_INDEX(tpd->status) * sizeof(struct he_tpd)); 23261da177e4SLinus Torvalds #endif 23271da177e4SLinus Torvalds he_dev->tpdrq_tail->cid = cid; 23281da177e4SLinus Torvalds wmb(); 23291da177e4SLinus Torvalds 23301da177e4SLinus Torvalds he_dev->tpdrq_tail = new_tail; 23311da177e4SLinus Torvalds 23321da177e4SLinus Torvalds he_writel(he_dev, TPDRQ_MASK(he_dev->tpdrq_tail), TPDRQ_T); 23331da177e4SLinus Torvalds (void) he_readl(he_dev, TPDRQ_T); /* flush posted writes */ 23341da177e4SLinus Torvalds } 23351da177e4SLinus Torvalds 23361da177e4SLinus Torvalds static int 23371da177e4SLinus Torvalds he_open(struct atm_vcc *vcc) 23381da177e4SLinus Torvalds { 23391da177e4SLinus Torvalds unsigned long flags; 23401da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(vcc->dev); 23411da177e4SLinus Torvalds struct he_vcc *he_vcc; 23421da177e4SLinus Torvalds int err = 0; 23431da177e4SLinus Torvalds unsigned cid, rsr0, rsr1, rsr4, tsr0, tsr0_aal, tsr4, period, reg, clock; 23441da177e4SLinus Torvalds short vpi = vcc->vpi; 23451da177e4SLinus Torvalds int vci = vcc->vci; 23461da177e4SLinus Torvalds 23471da177e4SLinus Torvalds if (vci == ATM_VCI_UNSPEC || vpi == ATM_VPI_UNSPEC) 23481da177e4SLinus Torvalds return 0; 23491da177e4SLinus Torvalds 23501da177e4SLinus Torvalds HPRINTK("open vcc %p %d.%d\n", vcc, vpi, vci); 23511da177e4SLinus Torvalds 23521da177e4SLinus Torvalds set_bit(ATM_VF_ADDR, &vcc->flags); 23531da177e4SLinus Torvalds 23541da177e4SLinus Torvalds cid = he_mkcid(he_dev, vpi, vci); 23551da177e4SLinus Torvalds 23561da177e4SLinus Torvalds he_vcc = (struct he_vcc *) kmalloc(sizeof(struct he_vcc), GFP_ATOMIC); 23571da177e4SLinus Torvalds if (he_vcc == NULL) { 23581da177e4SLinus Torvalds hprintk("unable to allocate he_vcc during open\n"); 23591da177e4SLinus Torvalds return -ENOMEM; 23601da177e4SLinus Torvalds } 23611da177e4SLinus Torvalds 23621da177e4SLinus Torvalds he_vcc->iov_tail = he_vcc->iov_head; 23631da177e4SLinus Torvalds he_vcc->pdu_len = 0; 23641da177e4SLinus Torvalds he_vcc->rc_index = -1; 23651da177e4SLinus Torvalds 23661da177e4SLinus Torvalds init_waitqueue_head(&he_vcc->rx_waitq); 23671da177e4SLinus Torvalds init_waitqueue_head(&he_vcc->tx_waitq); 23681da177e4SLinus Torvalds 23691da177e4SLinus Torvalds vcc->dev_data = he_vcc; 23701da177e4SLinus Torvalds 23711da177e4SLinus Torvalds if (vcc->qos.txtp.traffic_class != ATM_NONE) { 23721da177e4SLinus Torvalds int pcr_goal; 23731da177e4SLinus Torvalds 23741da177e4SLinus Torvalds pcr_goal = atm_pcr_goal(&vcc->qos.txtp); 23751da177e4SLinus Torvalds if (pcr_goal == 0) 23761da177e4SLinus Torvalds pcr_goal = he_dev->atm_dev->link_rate; 23771da177e4SLinus Torvalds if (pcr_goal < 0) /* means round down, technically */ 23781da177e4SLinus Torvalds pcr_goal = -pcr_goal; 23791da177e4SLinus Torvalds 23801da177e4SLinus Torvalds HPRINTK("open tx cid 0x%x pcr_goal %d\n", cid, pcr_goal); 23811da177e4SLinus Torvalds 23821da177e4SLinus Torvalds switch (vcc->qos.aal) { 23831da177e4SLinus Torvalds case ATM_AAL5: 23841da177e4SLinus Torvalds tsr0_aal = TSR0_AAL5; 23851da177e4SLinus Torvalds tsr4 = TSR4_AAL5; 23861da177e4SLinus Torvalds break; 23871da177e4SLinus Torvalds case ATM_AAL0: 23881da177e4SLinus Torvalds tsr0_aal = TSR0_AAL0_SDU; 23891da177e4SLinus Torvalds tsr4 = TSR4_AAL0_SDU; 23901da177e4SLinus Torvalds break; 23911da177e4SLinus Torvalds default: 23921da177e4SLinus Torvalds err = -EINVAL; 23931da177e4SLinus Torvalds goto open_failed; 23941da177e4SLinus Torvalds } 23951da177e4SLinus Torvalds 23961da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 23971da177e4SLinus Torvalds tsr0 = he_readl_tsr0(he_dev, cid); 23981da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 23991da177e4SLinus Torvalds 24001da177e4SLinus Torvalds if (TSR0_CONN_STATE(tsr0) != 0) { 24011da177e4SLinus Torvalds hprintk("cid 0x%x not idle (tsr0 = 0x%x)\n", cid, tsr0); 24021da177e4SLinus Torvalds err = -EBUSY; 24031da177e4SLinus Torvalds goto open_failed; 24041da177e4SLinus Torvalds } 24051da177e4SLinus Torvalds 24061da177e4SLinus Torvalds switch (vcc->qos.txtp.traffic_class) { 24071da177e4SLinus Torvalds case ATM_UBR: 24081da177e4SLinus Torvalds /* 2.3.3.1 open connection ubr */ 24091da177e4SLinus Torvalds 24101da177e4SLinus Torvalds tsr0 = TSR0_UBR | TSR0_GROUP(0) | tsr0_aal | 24111da177e4SLinus Torvalds TSR0_USE_WMIN | TSR0_UPDATE_GER; 24121da177e4SLinus Torvalds break; 24131da177e4SLinus Torvalds 24141da177e4SLinus Torvalds case ATM_CBR: 24151da177e4SLinus Torvalds /* 2.3.3.2 open connection cbr */ 24161da177e4SLinus Torvalds 24171da177e4SLinus Torvalds /* 8.2.3 cbr scheduler wrap problem -- limit to 90% total link rate */ 24181da177e4SLinus Torvalds if ((he_dev->total_bw + pcr_goal) 24191da177e4SLinus Torvalds > (he_dev->atm_dev->link_rate * 9 / 10)) 24201da177e4SLinus Torvalds { 24211da177e4SLinus Torvalds err = -EBUSY; 24221da177e4SLinus Torvalds goto open_failed; 24231da177e4SLinus Torvalds } 24241da177e4SLinus Torvalds 24251da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); /* also protects he_dev->cs_stper[] */ 24261da177e4SLinus Torvalds 24271da177e4SLinus Torvalds /* find an unused cs_stper register */ 24281da177e4SLinus Torvalds for (reg = 0; reg < HE_NUM_CS_STPER; ++reg) 24291da177e4SLinus Torvalds if (he_dev->cs_stper[reg].inuse == 0 || 24301da177e4SLinus Torvalds he_dev->cs_stper[reg].pcr == pcr_goal) 24311da177e4SLinus Torvalds break; 24321da177e4SLinus Torvalds 24331da177e4SLinus Torvalds if (reg == HE_NUM_CS_STPER) { 24341da177e4SLinus Torvalds err = -EBUSY; 24351da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 24361da177e4SLinus Torvalds goto open_failed; 24371da177e4SLinus Torvalds } 24381da177e4SLinus Torvalds 24391da177e4SLinus Torvalds he_dev->total_bw += pcr_goal; 24401da177e4SLinus Torvalds 24411da177e4SLinus Torvalds he_vcc->rc_index = reg; 24421da177e4SLinus Torvalds ++he_dev->cs_stper[reg].inuse; 24431da177e4SLinus Torvalds he_dev->cs_stper[reg].pcr = pcr_goal; 24441da177e4SLinus Torvalds 24451da177e4SLinus Torvalds clock = he_is622(he_dev) ? 66667000 : 50000000; 24461da177e4SLinus Torvalds period = clock / pcr_goal; 24471da177e4SLinus Torvalds 24481da177e4SLinus Torvalds HPRINTK("rc_index = %d period = %d\n", 24491da177e4SLinus Torvalds reg, period); 24501da177e4SLinus Torvalds 24511da177e4SLinus Torvalds he_writel_mbox(he_dev, rate_to_atmf(period/2), 24521da177e4SLinus Torvalds CS_STPER0 + reg); 24531da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 24541da177e4SLinus Torvalds 24551da177e4SLinus Torvalds tsr0 = TSR0_CBR | TSR0_GROUP(0) | tsr0_aal | 24561da177e4SLinus Torvalds TSR0_RC_INDEX(reg); 24571da177e4SLinus Torvalds 24581da177e4SLinus Torvalds break; 24591da177e4SLinus Torvalds default: 24601da177e4SLinus Torvalds err = -EINVAL; 24611da177e4SLinus Torvalds goto open_failed; 24621da177e4SLinus Torvalds } 24631da177e4SLinus Torvalds 24641da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 24651da177e4SLinus Torvalds 24661da177e4SLinus Torvalds he_writel_tsr0(he_dev, tsr0, cid); 24671da177e4SLinus Torvalds he_writel_tsr4(he_dev, tsr4 | 1, cid); 24681da177e4SLinus Torvalds he_writel_tsr1(he_dev, TSR1_MCR(rate_to_atmf(0)) | 24691da177e4SLinus Torvalds TSR1_PCR(rate_to_atmf(pcr_goal)), cid); 24701da177e4SLinus Torvalds he_writel_tsr2(he_dev, TSR2_ACR(rate_to_atmf(pcr_goal)), cid); 24711da177e4SLinus Torvalds he_writel_tsr9(he_dev, TSR9_OPEN_CONN, cid); 24721da177e4SLinus Torvalds 24731da177e4SLinus Torvalds he_writel_tsr3(he_dev, 0x0, cid); 24741da177e4SLinus Torvalds he_writel_tsr5(he_dev, 0x0, cid); 24751da177e4SLinus Torvalds he_writel_tsr6(he_dev, 0x0, cid); 24761da177e4SLinus Torvalds he_writel_tsr7(he_dev, 0x0, cid); 24771da177e4SLinus Torvalds he_writel_tsr8(he_dev, 0x0, cid); 24781da177e4SLinus Torvalds he_writel_tsr10(he_dev, 0x0, cid); 24791da177e4SLinus Torvalds he_writel_tsr11(he_dev, 0x0, cid); 24801da177e4SLinus Torvalds he_writel_tsr12(he_dev, 0x0, cid); 24811da177e4SLinus Torvalds he_writel_tsr13(he_dev, 0x0, cid); 24821da177e4SLinus Torvalds he_writel_tsr14(he_dev, 0x0, cid); 24831da177e4SLinus Torvalds (void) he_readl_tsr0(he_dev, cid); /* flush posted writes */ 24841da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 24851da177e4SLinus Torvalds } 24861da177e4SLinus Torvalds 24871da177e4SLinus Torvalds if (vcc->qos.rxtp.traffic_class != ATM_NONE) { 24881da177e4SLinus Torvalds unsigned aal; 24891da177e4SLinus Torvalds 24901da177e4SLinus Torvalds HPRINTK("open rx cid 0x%x (rx_waitq %p)\n", cid, 24911da177e4SLinus Torvalds &HE_VCC(vcc)->rx_waitq); 24921da177e4SLinus Torvalds 24931da177e4SLinus Torvalds switch (vcc->qos.aal) { 24941da177e4SLinus Torvalds case ATM_AAL5: 24951da177e4SLinus Torvalds aal = RSR0_AAL5; 24961da177e4SLinus Torvalds break; 24971da177e4SLinus Torvalds case ATM_AAL0: 24981da177e4SLinus Torvalds aal = RSR0_RAWCELL; 24991da177e4SLinus Torvalds break; 25001da177e4SLinus Torvalds default: 25011da177e4SLinus Torvalds err = -EINVAL; 25021da177e4SLinus Torvalds goto open_failed; 25031da177e4SLinus Torvalds } 25041da177e4SLinus Torvalds 25051da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds rsr0 = he_readl_rsr0(he_dev, cid); 25081da177e4SLinus Torvalds if (rsr0 & RSR0_OPEN_CONN) { 25091da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 25101da177e4SLinus Torvalds 25111da177e4SLinus Torvalds hprintk("cid 0x%x not idle (rsr0 = 0x%x)\n", cid, rsr0); 25121da177e4SLinus Torvalds err = -EBUSY; 25131da177e4SLinus Torvalds goto open_failed; 25141da177e4SLinus Torvalds } 25151da177e4SLinus Torvalds 25161da177e4SLinus Torvalds #ifdef USE_RBPS 25171da177e4SLinus Torvalds rsr1 = RSR1_GROUP(0); 25181da177e4SLinus Torvalds rsr4 = RSR4_GROUP(0); 25191da177e4SLinus Torvalds #else /* !USE_RBPS */ 25201da177e4SLinus Torvalds rsr1 = RSR1_GROUP(0)|RSR1_RBPL_ONLY; 25211da177e4SLinus Torvalds rsr4 = RSR4_GROUP(0)|RSR4_RBPL_ONLY; 25221da177e4SLinus Torvalds #endif /* USE_RBPS */ 25231da177e4SLinus Torvalds rsr0 = vcc->qos.rxtp.traffic_class == ATM_UBR ? 25241da177e4SLinus Torvalds (RSR0_EPD_ENABLE|RSR0_PPD_ENABLE) : 0; 25251da177e4SLinus Torvalds 25261da177e4SLinus Torvalds #ifdef USE_CHECKSUM_HW 25271da177e4SLinus Torvalds if (vpi == 0 && vci >= ATM_NOT_RSV_VCI) 25281da177e4SLinus Torvalds rsr0 |= RSR0_TCP_CKSUM; 25291da177e4SLinus Torvalds #endif 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds he_writel_rsr4(he_dev, rsr4, cid); 25321da177e4SLinus Torvalds he_writel_rsr1(he_dev, rsr1, cid); 25331da177e4SLinus Torvalds /* 5.1.11 last parameter initialized should be 25341da177e4SLinus Torvalds the open/closed indication in rsr0 */ 25351da177e4SLinus Torvalds he_writel_rsr0(he_dev, 25361da177e4SLinus Torvalds rsr0 | RSR0_START_PDU | RSR0_OPEN_CONN | aal, cid); 25371da177e4SLinus Torvalds (void) he_readl_rsr0(he_dev, cid); /* flush posted writes */ 25381da177e4SLinus Torvalds 25391da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 25401da177e4SLinus Torvalds } 25411da177e4SLinus Torvalds 25421da177e4SLinus Torvalds open_failed: 25431da177e4SLinus Torvalds 25441da177e4SLinus Torvalds if (err) { 25451da177e4SLinus Torvalds kfree(he_vcc); 25461da177e4SLinus Torvalds clear_bit(ATM_VF_ADDR, &vcc->flags); 25471da177e4SLinus Torvalds } 25481da177e4SLinus Torvalds else 25491da177e4SLinus Torvalds set_bit(ATM_VF_READY, &vcc->flags); 25501da177e4SLinus Torvalds 25511da177e4SLinus Torvalds return err; 25521da177e4SLinus Torvalds } 25531da177e4SLinus Torvalds 25541da177e4SLinus Torvalds static void 25551da177e4SLinus Torvalds he_close(struct atm_vcc *vcc) 25561da177e4SLinus Torvalds { 25571da177e4SLinus Torvalds unsigned long flags; 25581da177e4SLinus Torvalds DECLARE_WAITQUEUE(wait, current); 25591da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(vcc->dev); 25601da177e4SLinus Torvalds struct he_tpd *tpd; 25611da177e4SLinus Torvalds unsigned cid; 25621da177e4SLinus Torvalds struct he_vcc *he_vcc = HE_VCC(vcc); 25631da177e4SLinus Torvalds #define MAX_RETRY 30 25641da177e4SLinus Torvalds int retry = 0, sleep = 1, tx_inuse; 25651da177e4SLinus Torvalds 25661da177e4SLinus Torvalds HPRINTK("close vcc %p %d.%d\n", vcc, vcc->vpi, vcc->vci); 25671da177e4SLinus Torvalds 25681da177e4SLinus Torvalds clear_bit(ATM_VF_READY, &vcc->flags); 25691da177e4SLinus Torvalds cid = he_mkcid(he_dev, vcc->vpi, vcc->vci); 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds if (vcc->qos.rxtp.traffic_class != ATM_NONE) { 25721da177e4SLinus Torvalds int timeout; 25731da177e4SLinus Torvalds 25741da177e4SLinus Torvalds HPRINTK("close rx cid 0x%x\n", cid); 25751da177e4SLinus Torvalds 25761da177e4SLinus Torvalds /* 2.7.2.2 close receive operation */ 25771da177e4SLinus Torvalds 25781da177e4SLinus Torvalds /* wait for previous close (if any) to finish */ 25791da177e4SLinus Torvalds 25801da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 25811da177e4SLinus Torvalds while (he_readl(he_dev, RCC_STAT) & RCC_BUSY) { 25821da177e4SLinus Torvalds HPRINTK("close cid 0x%x RCC_BUSY\n", cid); 25831da177e4SLinus Torvalds udelay(250); 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds set_current_state(TASK_UNINTERRUPTIBLE); 25871da177e4SLinus Torvalds add_wait_queue(&he_vcc->rx_waitq, &wait); 25881da177e4SLinus Torvalds 25891da177e4SLinus Torvalds he_writel_rsr0(he_dev, RSR0_CLOSE_CONN, cid); 25901da177e4SLinus Torvalds (void) he_readl_rsr0(he_dev, cid); /* flush posted writes */ 25911da177e4SLinus Torvalds he_writel_mbox(he_dev, cid, RXCON_CLOSE); 25921da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 25931da177e4SLinus Torvalds 25941da177e4SLinus Torvalds timeout = schedule_timeout(30*HZ); 25951da177e4SLinus Torvalds 25961da177e4SLinus Torvalds remove_wait_queue(&he_vcc->rx_waitq, &wait); 25971da177e4SLinus Torvalds set_current_state(TASK_RUNNING); 25981da177e4SLinus Torvalds 25991da177e4SLinus Torvalds if (timeout == 0) 26001da177e4SLinus Torvalds hprintk("close rx timeout cid 0x%x\n", cid); 26011da177e4SLinus Torvalds 26021da177e4SLinus Torvalds HPRINTK("close rx cid 0x%x complete\n", cid); 26031da177e4SLinus Torvalds 26041da177e4SLinus Torvalds } 26051da177e4SLinus Torvalds 26061da177e4SLinus Torvalds if (vcc->qos.txtp.traffic_class != ATM_NONE) { 26071da177e4SLinus Torvalds volatile unsigned tsr4, tsr0; 26081da177e4SLinus Torvalds int timeout; 26091da177e4SLinus Torvalds 26101da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x\n", cid); 26111da177e4SLinus Torvalds 26121da177e4SLinus Torvalds /* 2.1.2 26131da177e4SLinus Torvalds * 26141da177e4SLinus Torvalds * ... the host must first stop queueing packets to the TPDRQ 26151da177e4SLinus Torvalds * on the connection to be closed, then wait for all outstanding 26161da177e4SLinus Torvalds * packets to be transmitted and their buffers returned to the 26171da177e4SLinus Torvalds * TBRQ. When the last packet on the connection arrives in the 26181da177e4SLinus Torvalds * TBRQ, the host issues the close command to the adapter. 26191da177e4SLinus Torvalds */ 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds while (((tx_inuse = atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) > 0) && 26221da177e4SLinus Torvalds (retry < MAX_RETRY)) { 26231da177e4SLinus Torvalds msleep(sleep); 26241da177e4SLinus Torvalds if (sleep < 250) 26251da177e4SLinus Torvalds sleep = sleep * 2; 26261da177e4SLinus Torvalds 26271da177e4SLinus Torvalds ++retry; 26281da177e4SLinus Torvalds } 26291da177e4SLinus Torvalds 26301da177e4SLinus Torvalds if (tx_inuse) 26311da177e4SLinus Torvalds hprintk("close tx cid 0x%x tx_inuse = %d\n", cid, tx_inuse); 26321da177e4SLinus Torvalds 26331da177e4SLinus Torvalds /* 2.3.1.1 generic close operations with flush */ 26341da177e4SLinus Torvalds 26351da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 26361da177e4SLinus Torvalds he_writel_tsr4_upper(he_dev, TSR4_FLUSH_CONN, cid); 26371da177e4SLinus Torvalds /* also clears TSR4_SESSION_ENDED */ 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds switch (vcc->qos.txtp.traffic_class) { 26401da177e4SLinus Torvalds case ATM_UBR: 26411da177e4SLinus Torvalds he_writel_tsr1(he_dev, 26421da177e4SLinus Torvalds TSR1_MCR(rate_to_atmf(200000)) 26431da177e4SLinus Torvalds | TSR1_PCR(0), cid); 26441da177e4SLinus Torvalds break; 26451da177e4SLinus Torvalds case ATM_CBR: 26461da177e4SLinus Torvalds he_writel_tsr14_upper(he_dev, TSR14_DELETE, cid); 26471da177e4SLinus Torvalds break; 26481da177e4SLinus Torvalds } 26491da177e4SLinus Torvalds (void) he_readl_tsr4(he_dev, cid); /* flush posted writes */ 26501da177e4SLinus Torvalds 26511da177e4SLinus Torvalds tpd = __alloc_tpd(he_dev); 26521da177e4SLinus Torvalds if (tpd == NULL) { 26531da177e4SLinus Torvalds hprintk("close tx he_alloc_tpd failed cid 0x%x\n", cid); 26541da177e4SLinus Torvalds goto close_tx_incomplete; 26551da177e4SLinus Torvalds } 26561da177e4SLinus Torvalds tpd->status |= TPD_EOS | TPD_INT; 26571da177e4SLinus Torvalds tpd->skb = NULL; 26581da177e4SLinus Torvalds tpd->vcc = vcc; 26591da177e4SLinus Torvalds wmb(); 26601da177e4SLinus Torvalds 26611da177e4SLinus Torvalds set_current_state(TASK_UNINTERRUPTIBLE); 26621da177e4SLinus Torvalds add_wait_queue(&he_vcc->tx_waitq, &wait); 26631da177e4SLinus Torvalds __enqueue_tpd(he_dev, tpd, cid); 26641da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 26651da177e4SLinus Torvalds 26661da177e4SLinus Torvalds timeout = schedule_timeout(30*HZ); 26671da177e4SLinus Torvalds 26681da177e4SLinus Torvalds remove_wait_queue(&he_vcc->tx_waitq, &wait); 26691da177e4SLinus Torvalds set_current_state(TASK_RUNNING); 26701da177e4SLinus Torvalds 26711da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 26721da177e4SLinus Torvalds 26731da177e4SLinus Torvalds if (timeout == 0) { 26741da177e4SLinus Torvalds hprintk("close tx timeout cid 0x%x\n", cid); 26751da177e4SLinus Torvalds goto close_tx_incomplete; 26761da177e4SLinus Torvalds } 26771da177e4SLinus Torvalds 26781da177e4SLinus Torvalds while (!((tsr4 = he_readl_tsr4(he_dev, cid)) & TSR4_SESSION_ENDED)) { 26791da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x !TSR4_SESSION_ENDED (tsr4 = 0x%x)\n", cid, tsr4); 26801da177e4SLinus Torvalds udelay(250); 26811da177e4SLinus Torvalds } 26821da177e4SLinus Torvalds 26831da177e4SLinus Torvalds while (TSR0_CONN_STATE(tsr0 = he_readl_tsr0(he_dev, cid)) != 0) { 26841da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x TSR0_CONN_STATE != 0 (tsr0 = 0x%x)\n", cid, tsr0); 26851da177e4SLinus Torvalds udelay(250); 26861da177e4SLinus Torvalds } 26871da177e4SLinus Torvalds 26881da177e4SLinus Torvalds close_tx_incomplete: 26891da177e4SLinus Torvalds 26901da177e4SLinus Torvalds if (vcc->qos.txtp.traffic_class == ATM_CBR) { 26911da177e4SLinus Torvalds int reg = he_vcc->rc_index; 26921da177e4SLinus Torvalds 26931da177e4SLinus Torvalds HPRINTK("cs_stper reg = %d\n", reg); 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds if (he_dev->cs_stper[reg].inuse == 0) 26961da177e4SLinus Torvalds hprintk("cs_stper[%d].inuse = 0!\n", reg); 26971da177e4SLinus Torvalds else 26981da177e4SLinus Torvalds --he_dev->cs_stper[reg].inuse; 26991da177e4SLinus Torvalds 27001da177e4SLinus Torvalds he_dev->total_bw -= he_dev->cs_stper[reg].pcr; 27011da177e4SLinus Torvalds } 27021da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 27031da177e4SLinus Torvalds 27041da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x complete\n", cid); 27051da177e4SLinus Torvalds } 27061da177e4SLinus Torvalds 27071da177e4SLinus Torvalds kfree(he_vcc); 27081da177e4SLinus Torvalds 27091da177e4SLinus Torvalds clear_bit(ATM_VF_ADDR, &vcc->flags); 27101da177e4SLinus Torvalds } 27111da177e4SLinus Torvalds 27121da177e4SLinus Torvalds static int 27131da177e4SLinus Torvalds he_send(struct atm_vcc *vcc, struct sk_buff *skb) 27141da177e4SLinus Torvalds { 27151da177e4SLinus Torvalds unsigned long flags; 27161da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(vcc->dev); 27171da177e4SLinus Torvalds unsigned cid = he_mkcid(he_dev, vcc->vpi, vcc->vci); 27181da177e4SLinus Torvalds struct he_tpd *tpd; 27191da177e4SLinus Torvalds #ifdef USE_SCATTERGATHER 27201da177e4SLinus Torvalds int i, slot = 0; 27211da177e4SLinus Torvalds #endif 27221da177e4SLinus Torvalds 27231da177e4SLinus Torvalds #define HE_TPD_BUFSIZE 0xffff 27241da177e4SLinus Torvalds 27251da177e4SLinus Torvalds HPRINTK("send %d.%d\n", vcc->vpi, vcc->vci); 27261da177e4SLinus Torvalds 27271da177e4SLinus Torvalds if ((skb->len > HE_TPD_BUFSIZE) || 27281da177e4SLinus Torvalds ((vcc->qos.aal == ATM_AAL0) && (skb->len != ATM_AAL0_SDU))) { 27291da177e4SLinus Torvalds hprintk("buffer too large (or small) -- %d bytes\n", skb->len ); 27301da177e4SLinus Torvalds if (vcc->pop) 27311da177e4SLinus Torvalds vcc->pop(vcc, skb); 27321da177e4SLinus Torvalds else 27331da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27341da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27351da177e4SLinus Torvalds return -EINVAL; 27361da177e4SLinus Torvalds } 27371da177e4SLinus Torvalds 27381da177e4SLinus Torvalds #ifndef USE_SCATTERGATHER 27391da177e4SLinus Torvalds if (skb_shinfo(skb)->nr_frags) { 27401da177e4SLinus Torvalds hprintk("no scatter/gather support\n"); 27411da177e4SLinus Torvalds if (vcc->pop) 27421da177e4SLinus Torvalds vcc->pop(vcc, skb); 27431da177e4SLinus Torvalds else 27441da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27451da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27461da177e4SLinus Torvalds return -EINVAL; 27471da177e4SLinus Torvalds } 27481da177e4SLinus Torvalds #endif 27491da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 27501da177e4SLinus Torvalds 27511da177e4SLinus Torvalds tpd = __alloc_tpd(he_dev); 27521da177e4SLinus Torvalds if (tpd == NULL) { 27531da177e4SLinus Torvalds if (vcc->pop) 27541da177e4SLinus Torvalds vcc->pop(vcc, skb); 27551da177e4SLinus Torvalds else 27561da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27571da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27581da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 27591da177e4SLinus Torvalds return -ENOMEM; 27601da177e4SLinus Torvalds } 27611da177e4SLinus Torvalds 27621da177e4SLinus Torvalds if (vcc->qos.aal == ATM_AAL5) 27631da177e4SLinus Torvalds tpd->status |= TPD_CELLTYPE(TPD_USERCELL); 27641da177e4SLinus Torvalds else { 27651da177e4SLinus Torvalds char *pti_clp = (void *) (skb->data + 3); 27661da177e4SLinus Torvalds int clp, pti; 27671da177e4SLinus Torvalds 27681da177e4SLinus Torvalds pti = (*pti_clp & ATM_HDR_PTI_MASK) >> ATM_HDR_PTI_SHIFT; 27691da177e4SLinus Torvalds clp = (*pti_clp & ATM_HDR_CLP); 27701da177e4SLinus Torvalds tpd->status |= TPD_CELLTYPE(pti); 27711da177e4SLinus Torvalds if (clp) 27721da177e4SLinus Torvalds tpd->status |= TPD_CLP; 27731da177e4SLinus Torvalds 27741da177e4SLinus Torvalds skb_pull(skb, ATM_AAL0_SDU - ATM_CELL_PAYLOAD); 27751da177e4SLinus Torvalds } 27761da177e4SLinus Torvalds 27771da177e4SLinus Torvalds #ifdef USE_SCATTERGATHER 27781da177e4SLinus Torvalds tpd->iovec[slot].addr = pci_map_single(he_dev->pci_dev, skb->data, 27791da177e4SLinus Torvalds skb->len - skb->data_len, PCI_DMA_TODEVICE); 27801da177e4SLinus Torvalds tpd->iovec[slot].len = skb->len - skb->data_len; 27811da177e4SLinus Torvalds ++slot; 27821da177e4SLinus Torvalds 27831da177e4SLinus Torvalds for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 27841da177e4SLinus Torvalds skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 27851da177e4SLinus Torvalds 27861da177e4SLinus Torvalds if (slot == TPD_MAXIOV) { /* queue tpd; start new tpd */ 27871da177e4SLinus Torvalds tpd->vcc = vcc; 27881da177e4SLinus Torvalds tpd->skb = NULL; /* not the last fragment 27891da177e4SLinus Torvalds so dont ->push() yet */ 27901da177e4SLinus Torvalds wmb(); 27911da177e4SLinus Torvalds 27921da177e4SLinus Torvalds __enqueue_tpd(he_dev, tpd, cid); 27931da177e4SLinus Torvalds tpd = __alloc_tpd(he_dev); 27941da177e4SLinus Torvalds if (tpd == NULL) { 27951da177e4SLinus Torvalds if (vcc->pop) 27961da177e4SLinus Torvalds vcc->pop(vcc, skb); 27971da177e4SLinus Torvalds else 27981da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27991da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 28001da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 28011da177e4SLinus Torvalds return -ENOMEM; 28021da177e4SLinus Torvalds } 28031da177e4SLinus Torvalds tpd->status |= TPD_USERCELL; 28041da177e4SLinus Torvalds slot = 0; 28051da177e4SLinus Torvalds } 28061da177e4SLinus Torvalds 28071da177e4SLinus Torvalds tpd->iovec[slot].addr = pci_map_single(he_dev->pci_dev, 28081da177e4SLinus Torvalds (void *) page_address(frag->page) + frag->page_offset, 28091da177e4SLinus Torvalds frag->size, PCI_DMA_TODEVICE); 28101da177e4SLinus Torvalds tpd->iovec[slot].len = frag->size; 28111da177e4SLinus Torvalds ++slot; 28121da177e4SLinus Torvalds 28131da177e4SLinus Torvalds } 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds tpd->iovec[slot - 1].len |= TPD_LST; 28161da177e4SLinus Torvalds #else 28171da177e4SLinus Torvalds tpd->address0 = pci_map_single(he_dev->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); 28181da177e4SLinus Torvalds tpd->length0 = skb->len | TPD_LST; 28191da177e4SLinus Torvalds #endif 28201da177e4SLinus Torvalds tpd->status |= TPD_INT; 28211da177e4SLinus Torvalds 28221da177e4SLinus Torvalds tpd->vcc = vcc; 28231da177e4SLinus Torvalds tpd->skb = skb; 28241da177e4SLinus Torvalds wmb(); 28251da177e4SLinus Torvalds ATM_SKB(skb)->vcc = vcc; 28261da177e4SLinus Torvalds 28271da177e4SLinus Torvalds __enqueue_tpd(he_dev, tpd, cid); 28281da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 28291da177e4SLinus Torvalds 28301da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx); 28311da177e4SLinus Torvalds 28321da177e4SLinus Torvalds return 0; 28331da177e4SLinus Torvalds } 28341da177e4SLinus Torvalds 28351da177e4SLinus Torvalds static int 28361da177e4SLinus Torvalds he_ioctl(struct atm_dev *atm_dev, unsigned int cmd, void __user *arg) 28371da177e4SLinus Torvalds { 28381da177e4SLinus Torvalds unsigned long flags; 28391da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(atm_dev); 28401da177e4SLinus Torvalds struct he_ioctl_reg reg; 28411da177e4SLinus Torvalds int err = 0; 28421da177e4SLinus Torvalds 28431da177e4SLinus Torvalds switch (cmd) { 28441da177e4SLinus Torvalds case HE_GET_REG: 28451da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 28461da177e4SLinus Torvalds return -EPERM; 28471da177e4SLinus Torvalds 28481da177e4SLinus Torvalds if (copy_from_user(®, arg, 28491da177e4SLinus Torvalds sizeof(struct he_ioctl_reg))) 28501da177e4SLinus Torvalds return -EFAULT; 28511da177e4SLinus Torvalds 28521da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 28531da177e4SLinus Torvalds switch (reg.type) { 28541da177e4SLinus Torvalds case HE_REGTYPE_PCI: 28551da177e4SLinus Torvalds reg.val = he_readl(he_dev, reg.addr); 28561da177e4SLinus Torvalds break; 28571da177e4SLinus Torvalds case HE_REGTYPE_RCM: 28581da177e4SLinus Torvalds reg.val = 28591da177e4SLinus Torvalds he_readl_rcm(he_dev, reg.addr); 28601da177e4SLinus Torvalds break; 28611da177e4SLinus Torvalds case HE_REGTYPE_TCM: 28621da177e4SLinus Torvalds reg.val = 28631da177e4SLinus Torvalds he_readl_tcm(he_dev, reg.addr); 28641da177e4SLinus Torvalds break; 28651da177e4SLinus Torvalds case HE_REGTYPE_MBOX: 28661da177e4SLinus Torvalds reg.val = 28671da177e4SLinus Torvalds he_readl_mbox(he_dev, reg.addr); 28681da177e4SLinus Torvalds break; 28691da177e4SLinus Torvalds default: 28701da177e4SLinus Torvalds err = -EINVAL; 28711da177e4SLinus Torvalds break; 28721da177e4SLinus Torvalds } 28731da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 28741da177e4SLinus Torvalds if (err == 0) 28751da177e4SLinus Torvalds if (copy_to_user(arg, ®, 28761da177e4SLinus Torvalds sizeof(struct he_ioctl_reg))) 28771da177e4SLinus Torvalds return -EFAULT; 28781da177e4SLinus Torvalds break; 28791da177e4SLinus Torvalds default: 28801da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 28811da177e4SLinus Torvalds if (atm_dev->phy && atm_dev->phy->ioctl) 28821da177e4SLinus Torvalds err = atm_dev->phy->ioctl(atm_dev, cmd, arg); 28831da177e4SLinus Torvalds #else /* CONFIG_ATM_HE_USE_SUNI */ 28841da177e4SLinus Torvalds err = -EINVAL; 28851da177e4SLinus Torvalds #endif /* CONFIG_ATM_HE_USE_SUNI */ 28861da177e4SLinus Torvalds break; 28871da177e4SLinus Torvalds } 28881da177e4SLinus Torvalds 28891da177e4SLinus Torvalds return err; 28901da177e4SLinus Torvalds } 28911da177e4SLinus Torvalds 28921da177e4SLinus Torvalds static void 28931da177e4SLinus Torvalds he_phy_put(struct atm_dev *atm_dev, unsigned char val, unsigned long addr) 28941da177e4SLinus Torvalds { 28951da177e4SLinus Torvalds unsigned long flags; 28961da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(atm_dev); 28971da177e4SLinus Torvalds 28981da177e4SLinus Torvalds HPRINTK("phy_put(val 0x%x, addr 0x%lx)\n", val, addr); 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 29011da177e4SLinus Torvalds he_writel(he_dev, val, FRAMER + (addr*4)); 29021da177e4SLinus Torvalds (void) he_readl(he_dev, FRAMER + (addr*4)); /* flush posted writes */ 29031da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 29041da177e4SLinus Torvalds } 29051da177e4SLinus Torvalds 29061da177e4SLinus Torvalds 29071da177e4SLinus Torvalds static unsigned char 29081da177e4SLinus Torvalds he_phy_get(struct atm_dev *atm_dev, unsigned long addr) 29091da177e4SLinus Torvalds { 29101da177e4SLinus Torvalds unsigned long flags; 29111da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(atm_dev); 29121da177e4SLinus Torvalds unsigned reg; 29131da177e4SLinus Torvalds 29141da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 29151da177e4SLinus Torvalds reg = he_readl(he_dev, FRAMER + (addr*4)); 29161da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 29171da177e4SLinus Torvalds 29181da177e4SLinus Torvalds HPRINTK("phy_get(addr 0x%lx) =0x%x\n", addr, reg); 29191da177e4SLinus Torvalds return reg; 29201da177e4SLinus Torvalds } 29211da177e4SLinus Torvalds 29221da177e4SLinus Torvalds static int 29231da177e4SLinus Torvalds he_proc_read(struct atm_dev *dev, loff_t *pos, char *page) 29241da177e4SLinus Torvalds { 29251da177e4SLinus Torvalds unsigned long flags; 29261da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(dev); 29271da177e4SLinus Torvalds int left, i; 29281da177e4SLinus Torvalds #ifdef notdef 29291da177e4SLinus Torvalds struct he_rbrq *rbrq_tail; 29301da177e4SLinus Torvalds struct he_tpdrq *tpdrq_head; 29311da177e4SLinus Torvalds int rbpl_head, rbpl_tail; 29321da177e4SLinus Torvalds #endif 29331da177e4SLinus Torvalds static long mcc = 0, oec = 0, dcc = 0, cec = 0; 29341da177e4SLinus Torvalds 29351da177e4SLinus Torvalds 29361da177e4SLinus Torvalds left = *pos; 29371da177e4SLinus Torvalds if (!left--) 29381da177e4SLinus Torvalds return sprintf(page, "%s\n", version); 29391da177e4SLinus Torvalds 29401da177e4SLinus Torvalds if (!left--) 29411da177e4SLinus Torvalds return sprintf(page, "%s%s\n\n", 29421da177e4SLinus Torvalds he_dev->prod_id, he_dev->media & 0x40 ? "SM" : "MM"); 29431da177e4SLinus Torvalds 29441da177e4SLinus Torvalds if (!left--) 29451da177e4SLinus Torvalds return sprintf(page, "Mismatched Cells VPI/VCI Not Open Dropped Cells RCM Dropped Cells\n"); 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 29481da177e4SLinus Torvalds mcc += he_readl(he_dev, MCC); 29491da177e4SLinus Torvalds oec += he_readl(he_dev, OEC); 29501da177e4SLinus Torvalds dcc += he_readl(he_dev, DCC); 29511da177e4SLinus Torvalds cec += he_readl(he_dev, CEC); 29521da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 29531da177e4SLinus Torvalds 29541da177e4SLinus Torvalds if (!left--) 29551da177e4SLinus Torvalds return sprintf(page, "%16ld %16ld %13ld %17ld\n\n", 29561da177e4SLinus Torvalds mcc, oec, dcc, cec); 29571da177e4SLinus Torvalds 29581da177e4SLinus Torvalds if (!left--) 29591da177e4SLinus Torvalds return sprintf(page, "irq_size = %d inuse = ? peak = %d\n", 29601da177e4SLinus Torvalds CONFIG_IRQ_SIZE, he_dev->irq_peak); 29611da177e4SLinus Torvalds 29621da177e4SLinus Torvalds if (!left--) 29631da177e4SLinus Torvalds return sprintf(page, "tpdrq_size = %d inuse = ?\n", 29641da177e4SLinus Torvalds CONFIG_TPDRQ_SIZE); 29651da177e4SLinus Torvalds 29661da177e4SLinus Torvalds if (!left--) 29671da177e4SLinus Torvalds return sprintf(page, "rbrq_size = %d inuse = ? peak = %d\n", 29681da177e4SLinus Torvalds CONFIG_RBRQ_SIZE, he_dev->rbrq_peak); 29691da177e4SLinus Torvalds 29701da177e4SLinus Torvalds if (!left--) 29711da177e4SLinus Torvalds return sprintf(page, "tbrq_size = %d peak = %d\n", 29721da177e4SLinus Torvalds CONFIG_TBRQ_SIZE, he_dev->tbrq_peak); 29731da177e4SLinus Torvalds 29741da177e4SLinus Torvalds 29751da177e4SLinus Torvalds #ifdef notdef 29761da177e4SLinus Torvalds rbpl_head = RBPL_MASK(he_readl(he_dev, G0_RBPL_S)); 29771da177e4SLinus Torvalds rbpl_tail = RBPL_MASK(he_readl(he_dev, G0_RBPL_T)); 29781da177e4SLinus Torvalds 29791da177e4SLinus Torvalds inuse = rbpl_head - rbpl_tail; 29801da177e4SLinus Torvalds if (inuse < 0) 29811da177e4SLinus Torvalds inuse += CONFIG_RBPL_SIZE * sizeof(struct he_rbp); 29821da177e4SLinus Torvalds inuse /= sizeof(struct he_rbp); 29831da177e4SLinus Torvalds 29841da177e4SLinus Torvalds if (!left--) 29851da177e4SLinus Torvalds return sprintf(page, "rbpl_size = %d inuse = %d\n\n", 29861da177e4SLinus Torvalds CONFIG_RBPL_SIZE, inuse); 29871da177e4SLinus Torvalds #endif 29881da177e4SLinus Torvalds 29891da177e4SLinus Torvalds if (!left--) 29901da177e4SLinus Torvalds return sprintf(page, "rate controller periods (cbr)\n pcr #vc\n"); 29911da177e4SLinus Torvalds 29921da177e4SLinus Torvalds for (i = 0; i < HE_NUM_CS_STPER; ++i) 29931da177e4SLinus Torvalds if (!left--) 29941da177e4SLinus Torvalds return sprintf(page, "cs_stper%-2d %8ld %3d\n", i, 29951da177e4SLinus Torvalds he_dev->cs_stper[i].pcr, 29961da177e4SLinus Torvalds he_dev->cs_stper[i].inuse); 29971da177e4SLinus Torvalds 29981da177e4SLinus Torvalds if (!left--) 29991da177e4SLinus Torvalds return sprintf(page, "total bw (cbr): %d (limit %d)\n", 30001da177e4SLinus Torvalds he_dev->total_bw, he_dev->atm_dev->link_rate * 10 / 9); 30011da177e4SLinus Torvalds 30021da177e4SLinus Torvalds return 0; 30031da177e4SLinus Torvalds } 30041da177e4SLinus Torvalds 30051da177e4SLinus Torvalds /* eeprom routines -- see 4.7 */ 30061da177e4SLinus Torvalds 30071da177e4SLinus Torvalds u8 30081da177e4SLinus Torvalds read_prom_byte(struct he_dev *he_dev, int addr) 30091da177e4SLinus Torvalds { 30101da177e4SLinus Torvalds u32 val = 0, tmp_read = 0; 30111da177e4SLinus Torvalds int i, j = 0; 30121da177e4SLinus Torvalds u8 byte_read = 0; 30131da177e4SLinus Torvalds 30141da177e4SLinus Torvalds val = readl(he_dev->membase + HOST_CNTL); 30151da177e4SLinus Torvalds val &= 0xFFFFE0FF; 30161da177e4SLinus Torvalds 30171da177e4SLinus Torvalds /* Turn on write enable */ 30181da177e4SLinus Torvalds val |= 0x800; 30191da177e4SLinus Torvalds he_writel(he_dev, val, HOST_CNTL); 30201da177e4SLinus Torvalds 30211da177e4SLinus Torvalds /* Send READ instruction */ 30221da177e4SLinus Torvalds for (i = 0; i < sizeof(readtab)/sizeof(readtab[0]); i++) { 30231da177e4SLinus Torvalds he_writel(he_dev, val | readtab[i], HOST_CNTL); 30241da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30251da177e4SLinus Torvalds } 30261da177e4SLinus Torvalds 30271da177e4SLinus Torvalds /* Next, we need to send the byte address to read from */ 30281da177e4SLinus Torvalds for (i = 7; i >= 0; i--) { 30291da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++] | (((addr >> i) & 1) << 9), HOST_CNTL); 30301da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30311da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++] | (((addr >> i) & 1) << 9), HOST_CNTL); 30321da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30331da177e4SLinus Torvalds } 30341da177e4SLinus Torvalds 30351da177e4SLinus Torvalds j = 0; 30361da177e4SLinus Torvalds 30371da177e4SLinus Torvalds val &= 0xFFFFF7FF; /* Turn off write enable */ 30381da177e4SLinus Torvalds he_writel(he_dev, val, HOST_CNTL); 30391da177e4SLinus Torvalds 30401da177e4SLinus Torvalds /* Now, we can read data from the EEPROM by clocking it in */ 30411da177e4SLinus Torvalds for (i = 7; i >= 0; i--) { 30421da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++], HOST_CNTL); 30431da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30441da177e4SLinus Torvalds tmp_read = he_readl(he_dev, HOST_CNTL); 30451da177e4SLinus Torvalds byte_read |= (unsigned char) 30461da177e4SLinus Torvalds ((tmp_read & ID_DOUT) >> ID_DOFFSET << i); 30471da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++], HOST_CNTL); 30481da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30491da177e4SLinus Torvalds } 30501da177e4SLinus Torvalds 30511da177e4SLinus Torvalds he_writel(he_dev, val | ID_CS, HOST_CNTL); 30521da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30531da177e4SLinus Torvalds 30541da177e4SLinus Torvalds return byte_read; 30551da177e4SLinus Torvalds } 30561da177e4SLinus Torvalds 30571da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 30581da177e4SLinus Torvalds MODULE_AUTHOR("chas williams <chas@cmf.nrl.navy.mil>"); 30591da177e4SLinus Torvalds MODULE_DESCRIPTION("ForeRunnerHE ATM Adapter driver"); 30601da177e4SLinus Torvalds module_param(disable64, bool, 0); 30611da177e4SLinus Torvalds MODULE_PARM_DESC(disable64, "disable 64-bit pci bus transfers"); 30621da177e4SLinus Torvalds module_param(nvpibits, short, 0); 30631da177e4SLinus Torvalds MODULE_PARM_DESC(nvpibits, "numbers of bits for vpi (default 0)"); 30641da177e4SLinus Torvalds module_param(nvcibits, short, 0); 30651da177e4SLinus Torvalds MODULE_PARM_DESC(nvcibits, "numbers of bits for vci (default 12)"); 30661da177e4SLinus Torvalds module_param(rx_skb_reserve, short, 0); 30671da177e4SLinus Torvalds MODULE_PARM_DESC(rx_skb_reserve, "padding for receive skb (default 16)"); 30681da177e4SLinus Torvalds module_param(irq_coalesce, bool, 0); 30691da177e4SLinus Torvalds MODULE_PARM_DESC(irq_coalesce, "use interrupt coalescing (default 1)"); 30701da177e4SLinus Torvalds module_param(sdh, bool, 0); 30711da177e4SLinus Torvalds MODULE_PARM_DESC(sdh, "use SDH framing (default 0)"); 30721da177e4SLinus Torvalds 30731da177e4SLinus Torvalds static struct pci_device_id he_pci_tbl[] = { 30741da177e4SLinus Torvalds { PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_HE, PCI_ANY_ID, PCI_ANY_ID, 30751da177e4SLinus Torvalds 0, 0, 0 }, 30761da177e4SLinus Torvalds { 0, } 30771da177e4SLinus Torvalds }; 30781da177e4SLinus Torvalds 30791da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, he_pci_tbl); 30801da177e4SLinus Torvalds 30811da177e4SLinus Torvalds static struct pci_driver he_driver = { 30821da177e4SLinus Torvalds .name = "he", 30831da177e4SLinus Torvalds .probe = he_init_one, 30841da177e4SLinus Torvalds .remove = __devexit_p(he_remove_one), 30851da177e4SLinus Torvalds .id_table = he_pci_tbl, 30861da177e4SLinus Torvalds }; 30871da177e4SLinus Torvalds 30881da177e4SLinus Torvalds static int __init he_init(void) 30891da177e4SLinus Torvalds { 30901da177e4SLinus Torvalds return pci_register_driver(&he_driver); 30911da177e4SLinus Torvalds } 30921da177e4SLinus Torvalds 30931da177e4SLinus Torvalds static void __exit he_cleanup(void) 30941da177e4SLinus Torvalds { 30951da177e4SLinus Torvalds pci_unregister_driver(&he_driver); 30961da177e4SLinus Torvalds } 30971da177e4SLinus Torvalds 30981da177e4SLinus Torvalds module_init(he_init); 30991da177e4SLinus Torvalds module_exit(he_cleanup); 3100