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/config.h> 591da177e4SLinus Torvalds #include <linux/module.h> 601da177e4SLinus Torvalds #include <linux/version.h> 611da177e4SLinus Torvalds #include <linux/kernel.h> 621da177e4SLinus Torvalds #include <linux/skbuff.h> 631da177e4SLinus Torvalds #include <linux/pci.h> 641da177e4SLinus Torvalds #include <linux/errno.h> 651da177e4SLinus Torvalds #include <linux/types.h> 661da177e4SLinus Torvalds #include <linux/string.h> 671da177e4SLinus Torvalds #include <linux/delay.h> 681da177e4SLinus Torvalds #include <linux/init.h> 691da177e4SLinus Torvalds #include <linux/mm.h> 701da177e4SLinus Torvalds #include <linux/sched.h> 711da177e4SLinus Torvalds #include <linux/timer.h> 721da177e4SLinus Torvalds #include <linux/interrupt.h> 73e5695f08Schas williams #include <linux/dma-mapping.h> 741da177e4SLinus Torvalds #include <asm/io.h> 751da177e4SLinus Torvalds #include <asm/byteorder.h> 761da177e4SLinus Torvalds #include <asm/uaccess.h> 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds #include <linux/atmdev.h> 791da177e4SLinus Torvalds #include <linux/atm.h> 801da177e4SLinus Torvalds #include <linux/sonet.h> 811da177e4SLinus Torvalds 821da177e4SLinus Torvalds #define USE_TASKLET 831da177e4SLinus Torvalds #undef USE_SCATTERGATHER 841da177e4SLinus Torvalds #undef USE_CHECKSUM_HW /* still confused about this */ 851da177e4SLinus Torvalds #define USE_RBPS 861da177e4SLinus Torvalds #undef USE_RBPS_POOL /* if memory is tight try this */ 871da177e4SLinus Torvalds #undef USE_RBPL_POOL /* if memory is tight try this */ 881da177e4SLinus Torvalds #define USE_TPD_POOL 891da177e4SLinus Torvalds /* #undef CONFIG_ATM_HE_USE_SUNI */ 901da177e4SLinus Torvalds /* #undef HE_DEBUG */ 911da177e4SLinus Torvalds 921da177e4SLinus Torvalds #include "he.h" 931da177e4SLinus Torvalds #include "suni.h" 941da177e4SLinus Torvalds #include <linux/atm_he.h> 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds #define hprintk(fmt,args...) printk(KERN_ERR DEV_LABEL "%d: " fmt, he_dev->number , ##args) 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds #ifdef HE_DEBUG 991da177e4SLinus Torvalds #define HPRINTK(fmt,args...) printk(KERN_DEBUG DEV_LABEL "%d: " fmt, he_dev->number , ##args) 1001da177e4SLinus Torvalds #else /* !HE_DEBUG */ 1011da177e4SLinus Torvalds #define HPRINTK(fmt,args...) do { } while (0) 1021da177e4SLinus Torvalds #endif /* HE_DEBUG */ 1031da177e4SLinus Torvalds 1041da177e4SLinus Torvalds /* version definition */ 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds static char *version = "$Id: he.c,v 1.18 2003/05/06 22:57:15 chas Exp $"; 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds /* declarations */ 1091da177e4SLinus Torvalds 1101da177e4SLinus Torvalds static int he_open(struct atm_vcc *vcc); 1111da177e4SLinus Torvalds static void he_close(struct atm_vcc *vcc); 1121da177e4SLinus Torvalds static int he_send(struct atm_vcc *vcc, struct sk_buff *skb); 1131da177e4SLinus Torvalds static int he_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg); 1141da177e4SLinus Torvalds static irqreturn_t he_irq_handler(int irq, void *dev_id, struct pt_regs *regs); 1151da177e4SLinus Torvalds static void he_tasklet(unsigned long data); 1161da177e4SLinus Torvalds static int he_proc_read(struct atm_dev *dev,loff_t *pos,char *page); 1171da177e4SLinus Torvalds static int he_start(struct atm_dev *dev); 1181da177e4SLinus Torvalds static void he_stop(struct he_dev *dev); 1191da177e4SLinus Torvalds static void he_phy_put(struct atm_dev *, unsigned char, unsigned long); 1201da177e4SLinus Torvalds static unsigned char he_phy_get(struct atm_dev *, unsigned long); 1211da177e4SLinus Torvalds 1221da177e4SLinus Torvalds static u8 read_prom_byte(struct he_dev *he_dev, int addr); 1231da177e4SLinus Torvalds 1241da177e4SLinus Torvalds /* globals */ 1251da177e4SLinus Torvalds 1261da177e4SLinus Torvalds static struct he_dev *he_devs; 1271da177e4SLinus Torvalds static int disable64; 1281da177e4SLinus Torvalds static short nvpibits = -1; 1291da177e4SLinus Torvalds static short nvcibits = -1; 1301da177e4SLinus Torvalds static short rx_skb_reserve = 16; 1311da177e4SLinus Torvalds static int irq_coalesce = 1; 1321da177e4SLinus Torvalds static int sdh = 0; 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvalds /* Read from EEPROM = 0000 0011b */ 1351da177e4SLinus Torvalds static unsigned int readtab[] = { 1361da177e4SLinus Torvalds CS_HIGH | CLK_HIGH, 1371da177e4SLinus Torvalds CS_LOW | 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, 1481da177e4SLinus Torvalds CLK_HIGH, /* 0 */ 1491da177e4SLinus Torvalds CLK_LOW | SI_HIGH, 1501da177e4SLinus Torvalds CLK_HIGH | SI_HIGH, /* 1 */ 1511da177e4SLinus Torvalds CLK_LOW | SI_HIGH, 1521da177e4SLinus Torvalds CLK_HIGH | SI_HIGH /* 1 */ 1531da177e4SLinus Torvalds }; 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds /* Clock to read from/write to the EEPROM */ 1561da177e4SLinus Torvalds static unsigned int clocktab[] = { 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 CLK_HIGH, 1731da177e4SLinus Torvalds CLK_LOW 1741da177e4SLinus Torvalds }; 1751da177e4SLinus Torvalds 1761da177e4SLinus Torvalds static struct atmdev_ops he_ops = 1771da177e4SLinus Torvalds { 1781da177e4SLinus Torvalds .open = he_open, 1791da177e4SLinus Torvalds .close = he_close, 1801da177e4SLinus Torvalds .ioctl = he_ioctl, 1811da177e4SLinus Torvalds .send = he_send, 1821da177e4SLinus Torvalds .phy_put = he_phy_put, 1831da177e4SLinus Torvalds .phy_get = he_phy_get, 1841da177e4SLinus Torvalds .proc_read = he_proc_read, 1851da177e4SLinus Torvalds .owner = THIS_MODULE 1861da177e4SLinus Torvalds }; 1871da177e4SLinus Torvalds 1881da177e4SLinus Torvalds #define he_writel(dev, val, reg) do { writel(val, (dev)->membase + (reg)); wmb(); } while (0) 1891da177e4SLinus Torvalds #define he_readl(dev, reg) readl((dev)->membase + (reg)) 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds /* section 2.12 connection memory access */ 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds static __inline__ void 1941da177e4SLinus Torvalds he_writel_internal(struct he_dev *he_dev, unsigned val, unsigned addr, 1951da177e4SLinus Torvalds unsigned flags) 1961da177e4SLinus Torvalds { 1971da177e4SLinus Torvalds he_writel(he_dev, val, CON_DAT); 1981da177e4SLinus Torvalds (void) he_readl(he_dev, CON_DAT); /* flush posted writes */ 1991da177e4SLinus Torvalds he_writel(he_dev, flags | CON_CTL_WRITE | CON_CTL_ADDR(addr), CON_CTL); 2001da177e4SLinus Torvalds while (he_readl(he_dev, CON_CTL) & CON_CTL_BUSY); 2011da177e4SLinus Torvalds } 2021da177e4SLinus Torvalds 2031da177e4SLinus Torvalds #define he_writel_rcm(dev, val, reg) \ 2041da177e4SLinus Torvalds he_writel_internal(dev, val, reg, CON_CTL_RCM) 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds #define he_writel_tcm(dev, val, reg) \ 2071da177e4SLinus Torvalds he_writel_internal(dev, val, reg, CON_CTL_TCM) 2081da177e4SLinus Torvalds 2091da177e4SLinus Torvalds #define he_writel_mbox(dev, val, reg) \ 2101da177e4SLinus Torvalds he_writel_internal(dev, val, reg, CON_CTL_MBOX) 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds static unsigned 2131da177e4SLinus Torvalds he_readl_internal(struct he_dev *he_dev, unsigned addr, unsigned flags) 2141da177e4SLinus Torvalds { 2151da177e4SLinus Torvalds he_writel(he_dev, flags | CON_CTL_READ | CON_CTL_ADDR(addr), CON_CTL); 2161da177e4SLinus Torvalds while (he_readl(he_dev, CON_CTL) & CON_CTL_BUSY); 2171da177e4SLinus Torvalds return he_readl(he_dev, CON_DAT); 2181da177e4SLinus Torvalds } 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds #define he_readl_rcm(dev, reg) \ 2211da177e4SLinus Torvalds he_readl_internal(dev, reg, CON_CTL_RCM) 2221da177e4SLinus Torvalds 2231da177e4SLinus Torvalds #define he_readl_tcm(dev, reg) \ 2241da177e4SLinus Torvalds he_readl_internal(dev, reg, CON_CTL_TCM) 2251da177e4SLinus Torvalds 2261da177e4SLinus Torvalds #define he_readl_mbox(dev, reg) \ 2271da177e4SLinus Torvalds he_readl_internal(dev, reg, CON_CTL_MBOX) 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds /* figure 2.2 connection id */ 2311da177e4SLinus Torvalds 2321da177e4SLinus Torvalds #define he_mkcid(dev, vpi, vci) (((vpi << (dev)->vcibits) | vci) & 0x1fff) 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds /* 2.5.1 per connection transmit state registers */ 2351da177e4SLinus Torvalds 2361da177e4SLinus Torvalds #define he_writel_tsr0(dev, val, cid) \ 2371da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 0) 2381da177e4SLinus Torvalds #define he_readl_tsr0(dev, cid) \ 2391da177e4SLinus Torvalds he_readl_tcm(dev, CONFIG_TSRA | (cid << 3) | 0) 2401da177e4SLinus Torvalds 2411da177e4SLinus Torvalds #define he_writel_tsr1(dev, val, cid) \ 2421da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 1) 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvalds #define he_writel_tsr2(dev, val, cid) \ 2451da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 2) 2461da177e4SLinus Torvalds 2471da177e4SLinus Torvalds #define he_writel_tsr3(dev, val, cid) \ 2481da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 3) 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds #define he_writel_tsr4(dev, val, cid) \ 2511da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 4) 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds /* from page 2-20 2541da177e4SLinus Torvalds * 2551da177e4SLinus Torvalds * NOTE While the transmit connection is active, bits 23 through 0 2561da177e4SLinus Torvalds * of this register must not be written by the host. Byte 2571da177e4SLinus Torvalds * enables should be used during normal operation when writing 2581da177e4SLinus Torvalds * the most significant byte. 2591da177e4SLinus Torvalds */ 2601da177e4SLinus Torvalds 2611da177e4SLinus Torvalds #define he_writel_tsr4_upper(dev, val, cid) \ 2621da177e4SLinus Torvalds he_writel_internal(dev, val, CONFIG_TSRA | (cid << 3) | 4, \ 2631da177e4SLinus Torvalds CON_CTL_TCM \ 2641da177e4SLinus Torvalds | CON_BYTE_DISABLE_2 \ 2651da177e4SLinus Torvalds | CON_BYTE_DISABLE_1 \ 2661da177e4SLinus Torvalds | CON_BYTE_DISABLE_0) 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds #define he_readl_tsr4(dev, cid) \ 2691da177e4SLinus Torvalds he_readl_tcm(dev, CONFIG_TSRA | (cid << 3) | 4) 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds #define he_writel_tsr5(dev, val, cid) \ 2721da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 5) 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds #define he_writel_tsr6(dev, val, cid) \ 2751da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 6) 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds #define he_writel_tsr7(dev, val, cid) \ 2781da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRA | (cid << 3) | 7) 2791da177e4SLinus Torvalds 2801da177e4SLinus Torvalds 2811da177e4SLinus Torvalds #define he_writel_tsr8(dev, val, cid) \ 2821da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 0) 2831da177e4SLinus Torvalds 2841da177e4SLinus Torvalds #define he_writel_tsr9(dev, val, cid) \ 2851da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 1) 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds #define he_writel_tsr10(dev, val, cid) \ 2881da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 2) 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds #define he_writel_tsr11(dev, val, cid) \ 2911da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRB | (cid << 2) | 3) 2921da177e4SLinus Torvalds 2931da177e4SLinus Torvalds 2941da177e4SLinus Torvalds #define he_writel_tsr12(dev, val, cid) \ 2951da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRC | (cid << 1) | 0) 2961da177e4SLinus Torvalds 2971da177e4SLinus Torvalds #define he_writel_tsr13(dev, val, cid) \ 2981da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRC | (cid << 1) | 1) 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds #define he_writel_tsr14(dev, val, cid) \ 3021da177e4SLinus Torvalds he_writel_tcm(dev, val, CONFIG_TSRD | cid) 3031da177e4SLinus Torvalds 3041da177e4SLinus Torvalds #define he_writel_tsr14_upper(dev, val, cid) \ 3051da177e4SLinus Torvalds he_writel_internal(dev, val, CONFIG_TSRD | cid, \ 3061da177e4SLinus Torvalds CON_CTL_TCM \ 3071da177e4SLinus Torvalds | CON_BYTE_DISABLE_2 \ 3081da177e4SLinus Torvalds | CON_BYTE_DISABLE_1 \ 3091da177e4SLinus Torvalds | CON_BYTE_DISABLE_0) 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds /* 2.7.1 per connection receive state registers */ 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds #define he_writel_rsr0(dev, val, cid) \ 3141da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 0) 3151da177e4SLinus Torvalds #define he_readl_rsr0(dev, cid) \ 3161da177e4SLinus Torvalds he_readl_rcm(dev, 0x00000 | (cid << 3) | 0) 3171da177e4SLinus Torvalds 3181da177e4SLinus Torvalds #define he_writel_rsr1(dev, val, cid) \ 3191da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 1) 3201da177e4SLinus Torvalds 3211da177e4SLinus Torvalds #define he_writel_rsr2(dev, val, cid) \ 3221da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 2) 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvalds #define he_writel_rsr3(dev, val, cid) \ 3251da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 3) 3261da177e4SLinus Torvalds 3271da177e4SLinus Torvalds #define he_writel_rsr4(dev, val, cid) \ 3281da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 4) 3291da177e4SLinus Torvalds 3301da177e4SLinus Torvalds #define he_writel_rsr5(dev, val, cid) \ 3311da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 5) 3321da177e4SLinus Torvalds 3331da177e4SLinus Torvalds #define he_writel_rsr6(dev, val, cid) \ 3341da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 6) 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds #define he_writel_rsr7(dev, val, cid) \ 3371da177e4SLinus Torvalds he_writel_rcm(dev, val, 0x00000 | (cid << 3) | 7) 3381da177e4SLinus Torvalds 3391da177e4SLinus Torvalds static __inline__ struct atm_vcc* 3401da177e4SLinus Torvalds __find_vcc(struct he_dev *he_dev, unsigned cid) 3411da177e4SLinus Torvalds { 3421da177e4SLinus Torvalds struct hlist_head *head; 3431da177e4SLinus Torvalds struct atm_vcc *vcc; 3441da177e4SLinus Torvalds struct hlist_node *node; 3451da177e4SLinus Torvalds struct sock *s; 3461da177e4SLinus Torvalds short vpi; 3471da177e4SLinus Torvalds int vci; 3481da177e4SLinus Torvalds 3491da177e4SLinus Torvalds vpi = cid >> he_dev->vcibits; 3501da177e4SLinus Torvalds vci = cid & ((1 << he_dev->vcibits) - 1); 3511da177e4SLinus Torvalds head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds sk_for_each(s, node, head) { 3541da177e4SLinus Torvalds vcc = atm_sk(s); 3551da177e4SLinus Torvalds if (vcc->dev == he_dev->atm_dev && 3561da177e4SLinus Torvalds vcc->vci == vci && vcc->vpi == vpi && 3571da177e4SLinus Torvalds vcc->qos.rxtp.traffic_class != ATM_NONE) { 3581da177e4SLinus Torvalds return vcc; 3591da177e4SLinus Torvalds } 3601da177e4SLinus Torvalds } 3611da177e4SLinus Torvalds return NULL; 3621da177e4SLinus Torvalds } 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds static int __devinit 3651da177e4SLinus Torvalds he_init_one(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent) 3661da177e4SLinus Torvalds { 3671da177e4SLinus Torvalds struct atm_dev *atm_dev = NULL; 3681da177e4SLinus Torvalds struct he_dev *he_dev = NULL; 3691da177e4SLinus Torvalds int err = 0; 3701da177e4SLinus Torvalds 3711da177e4SLinus Torvalds printk(KERN_INFO "he: %s\n", version); 3721da177e4SLinus Torvalds 3731da177e4SLinus Torvalds if (pci_enable_device(pci_dev)) 3741da177e4SLinus Torvalds return -EIO; 375e5695f08Schas williams if (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK) != 0) { 3761da177e4SLinus Torvalds printk(KERN_WARNING "he: no suitable dma available\n"); 3771da177e4SLinus Torvalds err = -EIO; 3781da177e4SLinus Torvalds goto init_one_failure; 3791da177e4SLinus Torvalds } 3801da177e4SLinus Torvalds 3811da177e4SLinus Torvalds atm_dev = atm_dev_register(DEV_LABEL, &he_ops, -1, NULL); 3821da177e4SLinus Torvalds if (!atm_dev) { 3831da177e4SLinus Torvalds err = -ENODEV; 3841da177e4SLinus Torvalds goto init_one_failure; 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds pci_set_drvdata(pci_dev, atm_dev); 3871da177e4SLinus Torvalds 3881da177e4SLinus Torvalds he_dev = (struct he_dev *) kmalloc(sizeof(struct he_dev), 3891da177e4SLinus Torvalds GFP_KERNEL); 3901da177e4SLinus Torvalds if (!he_dev) { 3911da177e4SLinus Torvalds err = -ENOMEM; 3921da177e4SLinus Torvalds goto init_one_failure; 3931da177e4SLinus Torvalds } 3941da177e4SLinus Torvalds memset(he_dev, 0, sizeof(struct he_dev)); 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds he_dev->pci_dev = pci_dev; 3971da177e4SLinus Torvalds he_dev->atm_dev = atm_dev; 3981da177e4SLinus Torvalds he_dev->atm_dev->dev_data = he_dev; 3991da177e4SLinus Torvalds atm_dev->dev_data = he_dev; 4001da177e4SLinus Torvalds he_dev->number = atm_dev->number; 4011da177e4SLinus Torvalds if (he_start(atm_dev)) { 4021da177e4SLinus Torvalds he_stop(he_dev); 4031da177e4SLinus Torvalds err = -ENODEV; 4041da177e4SLinus Torvalds goto init_one_failure; 4051da177e4SLinus Torvalds } 4061da177e4SLinus Torvalds he_dev->next = NULL; 4071da177e4SLinus Torvalds if (he_devs) 4081da177e4SLinus Torvalds he_dev->next = he_devs; 4091da177e4SLinus Torvalds he_devs = he_dev; 4101da177e4SLinus Torvalds return 0; 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds init_one_failure: 4131da177e4SLinus Torvalds if (atm_dev) 4141da177e4SLinus Torvalds atm_dev_deregister(atm_dev); 4151da177e4SLinus Torvalds if (he_dev) 4161da177e4SLinus Torvalds kfree(he_dev); 4171da177e4SLinus Torvalds pci_disable_device(pci_dev); 4181da177e4SLinus Torvalds return err; 4191da177e4SLinus Torvalds } 4201da177e4SLinus Torvalds 4211da177e4SLinus Torvalds static void __devexit 4221da177e4SLinus Torvalds he_remove_one (struct pci_dev *pci_dev) 4231da177e4SLinus Torvalds { 4241da177e4SLinus Torvalds struct atm_dev *atm_dev; 4251da177e4SLinus Torvalds struct he_dev *he_dev; 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds atm_dev = pci_get_drvdata(pci_dev); 4281da177e4SLinus Torvalds he_dev = HE_DEV(atm_dev); 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds /* need to remove from he_devs */ 4311da177e4SLinus Torvalds 4321da177e4SLinus Torvalds he_stop(he_dev); 4331da177e4SLinus Torvalds atm_dev_deregister(atm_dev); 4341da177e4SLinus Torvalds kfree(he_dev); 4351da177e4SLinus Torvalds 4361da177e4SLinus Torvalds pci_set_drvdata(pci_dev, NULL); 4371da177e4SLinus Torvalds pci_disable_device(pci_dev); 4381da177e4SLinus Torvalds } 4391da177e4SLinus Torvalds 4401da177e4SLinus Torvalds 4411da177e4SLinus Torvalds static unsigned 4421da177e4SLinus Torvalds rate_to_atmf(unsigned rate) /* cps to atm forum format */ 4431da177e4SLinus Torvalds { 4441da177e4SLinus Torvalds #define NONZERO (1 << 14) 4451da177e4SLinus Torvalds 4461da177e4SLinus Torvalds unsigned exp = 0; 4471da177e4SLinus Torvalds 4481da177e4SLinus Torvalds if (rate == 0) 4491da177e4SLinus Torvalds return 0; 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds rate <<= 9; 4521da177e4SLinus Torvalds while (rate > 0x3ff) { 4531da177e4SLinus Torvalds ++exp; 4541da177e4SLinus Torvalds rate >>= 1; 4551da177e4SLinus Torvalds } 4561da177e4SLinus Torvalds 4571da177e4SLinus Torvalds return (NONZERO | (exp << 9) | (rate & 0x1ff)); 4581da177e4SLinus Torvalds } 4591da177e4SLinus Torvalds 4601da177e4SLinus Torvalds static void __init 4611da177e4SLinus Torvalds he_init_rx_lbfp0(struct he_dev *he_dev) 4621da177e4SLinus Torvalds { 4631da177e4SLinus Torvalds unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; 4641da177e4SLinus Torvalds unsigned lbufs_per_row = he_dev->cells_per_row / he_dev->cells_per_lbuf; 4651da177e4SLinus Torvalds unsigned lbuf_bufsize = he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD; 4661da177e4SLinus Torvalds unsigned row_offset = he_dev->r0_startrow * he_dev->bytes_per_row; 4671da177e4SLinus Torvalds 4681da177e4SLinus Torvalds lbufd_index = 0; 4691da177e4SLinus Torvalds lbm_offset = he_readl(he_dev, RCMLBM_BA); 4701da177e4SLinus Torvalds 4711da177e4SLinus Torvalds he_writel(he_dev, lbufd_index, RLBF0_H); 4721da177e4SLinus Torvalds 4731da177e4SLinus Torvalds for (i = 0, lbuf_count = 0; i < he_dev->r0_numbuffs; ++i) { 4741da177e4SLinus Torvalds lbufd_index += 2; 4751da177e4SLinus Torvalds lbuf_addr = (row_offset + (lbuf_count * lbuf_bufsize)) / 32; 4761da177e4SLinus Torvalds 4771da177e4SLinus Torvalds he_writel_rcm(he_dev, lbuf_addr, lbm_offset); 4781da177e4SLinus Torvalds he_writel_rcm(he_dev, lbufd_index, lbm_offset + 1); 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds if (++lbuf_count == lbufs_per_row) { 4811da177e4SLinus Torvalds lbuf_count = 0; 4821da177e4SLinus Torvalds row_offset += he_dev->bytes_per_row; 4831da177e4SLinus Torvalds } 4841da177e4SLinus Torvalds lbm_offset += 4; 4851da177e4SLinus Torvalds } 4861da177e4SLinus Torvalds 4871da177e4SLinus Torvalds he_writel(he_dev, lbufd_index - 2, RLBF0_T); 4881da177e4SLinus Torvalds he_writel(he_dev, he_dev->r0_numbuffs, RLBF0_C); 4891da177e4SLinus Torvalds } 4901da177e4SLinus Torvalds 4911da177e4SLinus Torvalds static void __init 4921da177e4SLinus Torvalds he_init_rx_lbfp1(struct he_dev *he_dev) 4931da177e4SLinus Torvalds { 4941da177e4SLinus Torvalds unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; 4951da177e4SLinus Torvalds unsigned lbufs_per_row = he_dev->cells_per_row / he_dev->cells_per_lbuf; 4961da177e4SLinus Torvalds unsigned lbuf_bufsize = he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD; 4971da177e4SLinus Torvalds unsigned row_offset = he_dev->r1_startrow * he_dev->bytes_per_row; 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds lbufd_index = 1; 5001da177e4SLinus Torvalds lbm_offset = he_readl(he_dev, RCMLBM_BA) + (2 * lbufd_index); 5011da177e4SLinus Torvalds 5021da177e4SLinus Torvalds he_writel(he_dev, lbufd_index, RLBF1_H); 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds for (i = 0, lbuf_count = 0; i < he_dev->r1_numbuffs; ++i) { 5051da177e4SLinus Torvalds lbufd_index += 2; 5061da177e4SLinus Torvalds lbuf_addr = (row_offset + (lbuf_count * lbuf_bufsize)) / 32; 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds he_writel_rcm(he_dev, lbuf_addr, lbm_offset); 5091da177e4SLinus Torvalds he_writel_rcm(he_dev, lbufd_index, lbm_offset + 1); 5101da177e4SLinus Torvalds 5111da177e4SLinus Torvalds if (++lbuf_count == lbufs_per_row) { 5121da177e4SLinus Torvalds lbuf_count = 0; 5131da177e4SLinus Torvalds row_offset += he_dev->bytes_per_row; 5141da177e4SLinus Torvalds } 5151da177e4SLinus Torvalds lbm_offset += 4; 5161da177e4SLinus Torvalds } 5171da177e4SLinus Torvalds 5181da177e4SLinus Torvalds he_writel(he_dev, lbufd_index - 2, RLBF1_T); 5191da177e4SLinus Torvalds he_writel(he_dev, he_dev->r1_numbuffs, RLBF1_C); 5201da177e4SLinus Torvalds } 5211da177e4SLinus Torvalds 5221da177e4SLinus Torvalds static void __init 5231da177e4SLinus Torvalds he_init_tx_lbfp(struct he_dev *he_dev) 5241da177e4SLinus Torvalds { 5251da177e4SLinus Torvalds unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; 5261da177e4SLinus Torvalds unsigned lbufs_per_row = he_dev->cells_per_row / he_dev->cells_per_lbuf; 5271da177e4SLinus Torvalds unsigned lbuf_bufsize = he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD; 5281da177e4SLinus Torvalds unsigned row_offset = he_dev->tx_startrow * he_dev->bytes_per_row; 5291da177e4SLinus Torvalds 5301da177e4SLinus Torvalds lbufd_index = he_dev->r0_numbuffs + he_dev->r1_numbuffs; 5311da177e4SLinus Torvalds lbm_offset = he_readl(he_dev, RCMLBM_BA) + (2 * lbufd_index); 5321da177e4SLinus Torvalds 5331da177e4SLinus Torvalds he_writel(he_dev, lbufd_index, TLBF_H); 5341da177e4SLinus Torvalds 5351da177e4SLinus Torvalds for (i = 0, lbuf_count = 0; i < he_dev->tx_numbuffs; ++i) { 5361da177e4SLinus Torvalds lbufd_index += 1; 5371da177e4SLinus Torvalds lbuf_addr = (row_offset + (lbuf_count * lbuf_bufsize)) / 32; 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds he_writel_rcm(he_dev, lbuf_addr, lbm_offset); 5401da177e4SLinus Torvalds he_writel_rcm(he_dev, lbufd_index, lbm_offset + 1); 5411da177e4SLinus Torvalds 5421da177e4SLinus Torvalds if (++lbuf_count == lbufs_per_row) { 5431da177e4SLinus Torvalds lbuf_count = 0; 5441da177e4SLinus Torvalds row_offset += he_dev->bytes_per_row; 5451da177e4SLinus Torvalds } 5461da177e4SLinus Torvalds lbm_offset += 2; 5471da177e4SLinus Torvalds } 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds he_writel(he_dev, lbufd_index - 1, TLBF_T); 5501da177e4SLinus Torvalds } 5511da177e4SLinus Torvalds 5521da177e4SLinus Torvalds static int __init 5531da177e4SLinus Torvalds he_init_tpdrq(struct he_dev *he_dev) 5541da177e4SLinus Torvalds { 5551da177e4SLinus Torvalds he_dev->tpdrq_base = pci_alloc_consistent(he_dev->pci_dev, 5561da177e4SLinus Torvalds CONFIG_TPDRQ_SIZE * sizeof(struct he_tpdrq), &he_dev->tpdrq_phys); 5571da177e4SLinus Torvalds if (he_dev->tpdrq_base == NULL) { 5581da177e4SLinus Torvalds hprintk("failed to alloc tpdrq\n"); 5591da177e4SLinus Torvalds return -ENOMEM; 5601da177e4SLinus Torvalds } 5611da177e4SLinus Torvalds memset(he_dev->tpdrq_base, 0, 5621da177e4SLinus Torvalds CONFIG_TPDRQ_SIZE * sizeof(struct he_tpdrq)); 5631da177e4SLinus Torvalds 5641da177e4SLinus Torvalds he_dev->tpdrq_tail = he_dev->tpdrq_base; 5651da177e4SLinus Torvalds he_dev->tpdrq_head = he_dev->tpdrq_base; 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds he_writel(he_dev, he_dev->tpdrq_phys, TPDRQ_B_H); 5681da177e4SLinus Torvalds he_writel(he_dev, 0, TPDRQ_T); 5691da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TPDRQ_SIZE - 1, TPDRQ_S); 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds return 0; 5721da177e4SLinus Torvalds } 5731da177e4SLinus Torvalds 5741da177e4SLinus Torvalds static void __init 5751da177e4SLinus Torvalds he_init_cs_block(struct he_dev *he_dev) 5761da177e4SLinus Torvalds { 5771da177e4SLinus Torvalds unsigned clock, rate, delta; 5781da177e4SLinus Torvalds int reg; 5791da177e4SLinus Torvalds 5801da177e4SLinus Torvalds /* 5.1.7 cs block initialization */ 5811da177e4SLinus Torvalds 5821da177e4SLinus Torvalds for (reg = 0; reg < 0x20; ++reg) 5831da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0, CS_STTIM0 + reg); 5841da177e4SLinus Torvalds 5851da177e4SLinus Torvalds /* rate grid timer reload values */ 5861da177e4SLinus Torvalds 5871da177e4SLinus Torvalds clock = he_is622(he_dev) ? 66667000 : 50000000; 5881da177e4SLinus Torvalds rate = he_dev->atm_dev->link_rate; 5891da177e4SLinus Torvalds delta = rate / 16 / 2; 5901da177e4SLinus Torvalds 5911da177e4SLinus Torvalds for (reg = 0; reg < 0x10; ++reg) { 5921da177e4SLinus Torvalds /* 2.4 internal transmit function 5931da177e4SLinus Torvalds * 5941da177e4SLinus Torvalds * we initialize the first row in the rate grid. 5951da177e4SLinus Torvalds * values are period (in clock cycles) of timer 5961da177e4SLinus Torvalds */ 5971da177e4SLinus Torvalds unsigned period = clock / rate; 5981da177e4SLinus Torvalds 5991da177e4SLinus Torvalds he_writel_mbox(he_dev, period, CS_TGRLD0 + reg); 6001da177e4SLinus Torvalds rate -= delta; 6011da177e4SLinus Torvalds } 6021da177e4SLinus Torvalds 6031da177e4SLinus Torvalds if (he_is622(he_dev)) { 6041da177e4SLinus Torvalds /* table 5.2 (4 cells per lbuf) */ 6051da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000800fa, CS_ERTHR0); 6061da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000c33cb, CS_ERTHR1); 6071da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0010101b, CS_ERTHR2); 6081da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00181dac, CS_ERTHR3); 6091da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00280600, CS_ERTHR4); 6101da177e4SLinus Torvalds 6111da177e4SLinus Torvalds /* table 5.3, 5.4, 5.5, 5.6, 5.7 */ 6121da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x023de8b3, CS_ERCTL0); 6131da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1801, CS_ERCTL1); 6141da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_ERCTL2); 6151da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1280, CS_ERSTAT0); 6161da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_ERSTAT1); 6171da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x14585, CS_RTFWR); 6181da177e4SLinus Torvalds 6191da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x4680, CS_RTATR); 6201da177e4SLinus Torvalds 6211da177e4SLinus Torvalds /* table 5.8 */ 6221da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00159ece, CS_TFBSET); 6231da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_WCRMAX); 6241da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x5eb3, CS_WCRMIN); 6251da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xe8b3, CS_WCRINC); 6261da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xdeb3, CS_WCRDEC); 6271da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x68b3, CS_WCRCEIL); 6281da177e4SLinus Torvalds 6291da177e4SLinus Torvalds /* table 5.9 */ 6301da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x5, CS_OTPPER); 6311da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x14, CS_OTWPER); 6321da177e4SLinus Torvalds } else { 6331da177e4SLinus Torvalds /* table 5.1 (4 cells per lbuf) */ 6341da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000400ea, CS_ERTHR0); 6351da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00063388, CS_ERTHR1); 6361da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x00081018, CS_ERTHR2); 6371da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000c1dac, CS_ERTHR3); 6381da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0014051a, CS_ERTHR4); 6391da177e4SLinus Torvalds 6401da177e4SLinus Torvalds /* table 5.3, 5.4, 5.5, 5.6, 5.7 */ 6411da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0235e4b1, CS_ERCTL0); 6421da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x4701, CS_ERCTL1); 6431da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_ERCTL2); 6441da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1280, CS_ERSTAT0); 6451da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_ERSTAT1); 6461da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xf424, CS_RTFWR); 6471da177e4SLinus Torvalds 6481da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x4680, CS_RTATR); 6491da177e4SLinus Torvalds 6501da177e4SLinus Torvalds /* table 5.8 */ 6511da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x000563b7, CS_TFBSET); 6521da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_WCRMAX); 6531da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x5ab1, CS_WCRMIN); 6541da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xe4b1, CS_WCRINC); 6551da177e4SLinus Torvalds he_writel_mbox(he_dev, 0xdab1, CS_WCRDEC); 6561da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x64b1, CS_WCRCEIL); 6571da177e4SLinus Torvalds 6581da177e4SLinus Torvalds /* table 5.9 */ 6591da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x6, CS_OTPPER); 6601da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x1e, CS_OTWPER); 6611da177e4SLinus Torvalds } 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x8, CS_OTTLIM); 6641da177e4SLinus Torvalds 6651da177e4SLinus Torvalds for (reg = 0; reg < 0x8; ++reg) 6661da177e4SLinus Torvalds he_writel_mbox(he_dev, 0x0, CS_HGRRT0 + reg); 6671da177e4SLinus Torvalds 6681da177e4SLinus Torvalds } 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds static int __init 6711da177e4SLinus Torvalds he_init_cs_block_rcm(struct he_dev *he_dev) 6721da177e4SLinus Torvalds { 6731da177e4SLinus Torvalds unsigned (*rategrid)[16][16]; 6741da177e4SLinus Torvalds unsigned rate, delta; 6751da177e4SLinus Torvalds int i, j, reg; 6761da177e4SLinus Torvalds 6771da177e4SLinus Torvalds unsigned rate_atmf, exp, man; 6781da177e4SLinus Torvalds unsigned long long rate_cps; 6791da177e4SLinus Torvalds int mult, buf, buf_limit = 4; 6801da177e4SLinus Torvalds 6811da177e4SLinus Torvalds rategrid = kmalloc( sizeof(unsigned) * 16 * 16, GFP_KERNEL); 6821da177e4SLinus Torvalds if (!rategrid) 6831da177e4SLinus Torvalds return -ENOMEM; 6841da177e4SLinus Torvalds 6851da177e4SLinus Torvalds /* initialize rate grid group table */ 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds for (reg = 0x0; reg < 0xff; ++reg) 6881da177e4SLinus Torvalds he_writel_rcm(he_dev, 0x0, CONFIG_RCMABR + reg); 6891da177e4SLinus Torvalds 6901da177e4SLinus Torvalds /* initialize rate controller groups */ 6911da177e4SLinus Torvalds 6921da177e4SLinus Torvalds for (reg = 0x100; reg < 0x1ff; ++reg) 6931da177e4SLinus Torvalds he_writel_rcm(he_dev, 0x0, CONFIG_RCMABR + reg); 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds /* initialize tNrm lookup table */ 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds /* the manual makes reference to a routine in a sample driver 6981da177e4SLinus Torvalds for proper configuration; fortunately, we only need this 6991da177e4SLinus Torvalds in order to support abr connection */ 7001da177e4SLinus Torvalds 7011da177e4SLinus Torvalds /* initialize rate to group table */ 7021da177e4SLinus Torvalds 7031da177e4SLinus Torvalds rate = he_dev->atm_dev->link_rate; 7041da177e4SLinus Torvalds delta = rate / 32; 7051da177e4SLinus Torvalds 7061da177e4SLinus Torvalds /* 7071da177e4SLinus Torvalds * 2.4 transmit internal functions 7081da177e4SLinus Torvalds * 7091da177e4SLinus Torvalds * we construct a copy of the rate grid used by the scheduler 7101da177e4SLinus Torvalds * in order to construct the rate to group table below 7111da177e4SLinus Torvalds */ 7121da177e4SLinus Torvalds 7131da177e4SLinus Torvalds for (j = 0; j < 16; j++) { 7141da177e4SLinus Torvalds (*rategrid)[0][j] = rate; 7151da177e4SLinus Torvalds rate -= delta; 7161da177e4SLinus Torvalds } 7171da177e4SLinus Torvalds 7181da177e4SLinus Torvalds for (i = 1; i < 16; i++) 7191da177e4SLinus Torvalds for (j = 0; j < 16; j++) 7201da177e4SLinus Torvalds if (i > 14) 7211da177e4SLinus Torvalds (*rategrid)[i][j] = (*rategrid)[i - 1][j] / 4; 7221da177e4SLinus Torvalds else 7231da177e4SLinus Torvalds (*rategrid)[i][j] = (*rategrid)[i - 1][j] / 2; 7241da177e4SLinus Torvalds 7251da177e4SLinus Torvalds /* 7261da177e4SLinus Torvalds * 2.4 transmit internal function 7271da177e4SLinus Torvalds * 7281da177e4SLinus Torvalds * this table maps the upper 5 bits of exponent and mantissa 7291da177e4SLinus Torvalds * of the atm forum representation of the rate into an index 7301da177e4SLinus Torvalds * on rate grid 7311da177e4SLinus Torvalds */ 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds rate_atmf = 0; 7341da177e4SLinus Torvalds while (rate_atmf < 0x400) { 7351da177e4SLinus Torvalds man = (rate_atmf & 0x1f) << 4; 7361da177e4SLinus Torvalds exp = rate_atmf >> 5; 7371da177e4SLinus Torvalds 7381da177e4SLinus Torvalds /* 7391da177e4SLinus Torvalds instead of '/ 512', use '>> 9' to prevent a call 7401da177e4SLinus Torvalds to divdu3 on x86 platforms 7411da177e4SLinus Torvalds */ 7421da177e4SLinus Torvalds rate_cps = (unsigned long long) (1 << exp) * (man + 512) >> 9; 7431da177e4SLinus Torvalds 7441da177e4SLinus Torvalds if (rate_cps < 10) 7451da177e4SLinus Torvalds rate_cps = 10; /* 2.2.1 minimum payload rate is 10 cps */ 7461da177e4SLinus Torvalds 7471da177e4SLinus Torvalds for (i = 255; i > 0; i--) 7481da177e4SLinus Torvalds if ((*rategrid)[i/16][i%16] >= rate_cps) 7491da177e4SLinus Torvalds break; /* pick nearest rate instead? */ 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds /* 7521da177e4SLinus Torvalds * each table entry is 16 bits: (rate grid index (8 bits) 7531da177e4SLinus Torvalds * and a buffer limit (8 bits) 7541da177e4SLinus Torvalds * there are two table entries in each 32-bit register 7551da177e4SLinus Torvalds */ 7561da177e4SLinus Torvalds 7571da177e4SLinus Torvalds #ifdef notdef 7581da177e4SLinus Torvalds buf = rate_cps * he_dev->tx_numbuffs / 7591da177e4SLinus Torvalds (he_dev->atm_dev->link_rate * 2); 7601da177e4SLinus Torvalds #else 7611da177e4SLinus Torvalds /* this is pretty, but avoids _divdu3 and is mostly correct */ 7621da177e4SLinus Torvalds mult = he_dev->atm_dev->link_rate / ATM_OC3_PCR; 7631da177e4SLinus Torvalds if (rate_cps > (272 * mult)) 7641da177e4SLinus Torvalds buf = 4; 7651da177e4SLinus Torvalds else if (rate_cps > (204 * mult)) 7661da177e4SLinus Torvalds buf = 3; 7671da177e4SLinus Torvalds else if (rate_cps > (136 * mult)) 7681da177e4SLinus Torvalds buf = 2; 7691da177e4SLinus Torvalds else if (rate_cps > (68 * mult)) 7701da177e4SLinus Torvalds buf = 1; 7711da177e4SLinus Torvalds else 7721da177e4SLinus Torvalds buf = 0; 7731da177e4SLinus Torvalds #endif 7741da177e4SLinus Torvalds if (buf > buf_limit) 7751da177e4SLinus Torvalds buf = buf_limit; 7761da177e4SLinus Torvalds reg = (reg << 16) | ((i << 8) | buf); 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds #define RTGTBL_OFFSET 0x400 7791da177e4SLinus Torvalds 7801da177e4SLinus Torvalds if (rate_atmf & 0x1) 7811da177e4SLinus Torvalds he_writel_rcm(he_dev, reg, 7821da177e4SLinus Torvalds CONFIG_RCMABR + RTGTBL_OFFSET + (rate_atmf >> 1)); 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds ++rate_atmf; 7851da177e4SLinus Torvalds } 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds kfree(rategrid); 7881da177e4SLinus Torvalds return 0; 7891da177e4SLinus Torvalds } 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds static int __init 7921da177e4SLinus Torvalds he_init_group(struct he_dev *he_dev, int group) 7931da177e4SLinus Torvalds { 7941da177e4SLinus Torvalds int i; 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds #ifdef USE_RBPS 7971da177e4SLinus Torvalds /* small buffer pool */ 7981da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 7991da177e4SLinus Torvalds he_dev->rbps_pool = pci_pool_create("rbps", he_dev->pci_dev, 8001da177e4SLinus Torvalds CONFIG_RBPS_BUFSIZE, 8, 0); 8011da177e4SLinus Torvalds if (he_dev->rbps_pool == NULL) { 8021da177e4SLinus Torvalds hprintk("unable to create rbps pages\n"); 8031da177e4SLinus Torvalds return -ENOMEM; 8041da177e4SLinus Torvalds } 8051da177e4SLinus Torvalds #else /* !USE_RBPS_POOL */ 8061da177e4SLinus Torvalds he_dev->rbps_pages = pci_alloc_consistent(he_dev->pci_dev, 8071da177e4SLinus Torvalds CONFIG_RBPS_SIZE * CONFIG_RBPS_BUFSIZE, &he_dev->rbps_pages_phys); 8081da177e4SLinus Torvalds if (he_dev->rbps_pages == NULL) { 8091da177e4SLinus Torvalds hprintk("unable to create rbps page pool\n"); 8101da177e4SLinus Torvalds return -ENOMEM; 8111da177e4SLinus Torvalds } 8121da177e4SLinus Torvalds #endif /* USE_RBPS_POOL */ 8131da177e4SLinus Torvalds 8141da177e4SLinus Torvalds he_dev->rbps_base = pci_alloc_consistent(he_dev->pci_dev, 8151da177e4SLinus Torvalds CONFIG_RBPS_SIZE * sizeof(struct he_rbp), &he_dev->rbps_phys); 8161da177e4SLinus Torvalds if (he_dev->rbps_base == NULL) { 8171da177e4SLinus Torvalds hprintk("failed to alloc rbps\n"); 8181da177e4SLinus Torvalds return -ENOMEM; 8191da177e4SLinus Torvalds } 8201da177e4SLinus Torvalds memset(he_dev->rbps_base, 0, CONFIG_RBPS_SIZE * sizeof(struct he_rbp)); 8211da177e4SLinus Torvalds he_dev->rbps_virt = kmalloc(CONFIG_RBPS_SIZE * sizeof(struct he_virt), GFP_KERNEL); 8221da177e4SLinus Torvalds 8231da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPS_SIZE; ++i) { 8241da177e4SLinus Torvalds dma_addr_t dma_handle; 8251da177e4SLinus Torvalds void *cpuaddr; 8261da177e4SLinus Torvalds 8271da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 8281da177e4SLinus Torvalds cpuaddr = pci_pool_alloc(he_dev->rbps_pool, SLAB_KERNEL|SLAB_DMA, &dma_handle); 8291da177e4SLinus Torvalds if (cpuaddr == NULL) 8301da177e4SLinus Torvalds return -ENOMEM; 8311da177e4SLinus Torvalds #else 8321da177e4SLinus Torvalds cpuaddr = he_dev->rbps_pages + (i * CONFIG_RBPS_BUFSIZE); 8331da177e4SLinus Torvalds dma_handle = he_dev->rbps_pages_phys + (i * CONFIG_RBPS_BUFSIZE); 8341da177e4SLinus Torvalds #endif 8351da177e4SLinus Torvalds 8361da177e4SLinus Torvalds he_dev->rbps_virt[i].virt = cpuaddr; 8371da177e4SLinus Torvalds he_dev->rbps_base[i].status = RBP_LOANED | RBP_SMALLBUF | (i << RBP_INDEX_OFF); 8381da177e4SLinus Torvalds he_dev->rbps_base[i].phys = dma_handle; 8391da177e4SLinus Torvalds 8401da177e4SLinus Torvalds } 8411da177e4SLinus Torvalds he_dev->rbps_tail = &he_dev->rbps_base[CONFIG_RBPS_SIZE - 1]; 8421da177e4SLinus Torvalds 8431da177e4SLinus Torvalds he_writel(he_dev, he_dev->rbps_phys, G0_RBPS_S + (group * 32)); 8441da177e4SLinus Torvalds he_writel(he_dev, RBPS_MASK(he_dev->rbps_tail), 8451da177e4SLinus Torvalds G0_RBPS_T + (group * 32)); 8461da177e4SLinus Torvalds he_writel(he_dev, CONFIG_RBPS_BUFSIZE/4, 8471da177e4SLinus Torvalds G0_RBPS_BS + (group * 32)); 8481da177e4SLinus Torvalds he_writel(he_dev, 8491da177e4SLinus Torvalds RBP_THRESH(CONFIG_RBPS_THRESH) | 8501da177e4SLinus Torvalds RBP_QSIZE(CONFIG_RBPS_SIZE - 1) | 8511da177e4SLinus Torvalds RBP_INT_ENB, 8521da177e4SLinus Torvalds G0_RBPS_QI + (group * 32)); 8531da177e4SLinus Torvalds #else /* !USE_RBPS */ 8541da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_S + (group * 32)); 8551da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_T + (group * 32)); 8561da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_QI + (group * 32)); 8571da177e4SLinus Torvalds he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0), 8581da177e4SLinus Torvalds G0_RBPS_BS + (group * 32)); 8591da177e4SLinus Torvalds #endif /* USE_RBPS */ 8601da177e4SLinus Torvalds 8611da177e4SLinus Torvalds /* large buffer pool */ 8621da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 8631da177e4SLinus Torvalds he_dev->rbpl_pool = pci_pool_create("rbpl", he_dev->pci_dev, 8641da177e4SLinus Torvalds CONFIG_RBPL_BUFSIZE, 8, 0); 8651da177e4SLinus Torvalds if (he_dev->rbpl_pool == NULL) { 8661da177e4SLinus Torvalds hprintk("unable to create rbpl pool\n"); 8671da177e4SLinus Torvalds return -ENOMEM; 8681da177e4SLinus Torvalds } 8691da177e4SLinus Torvalds #else /* !USE_RBPL_POOL */ 8701da177e4SLinus Torvalds he_dev->rbpl_pages = (void *) pci_alloc_consistent(he_dev->pci_dev, 8711da177e4SLinus Torvalds CONFIG_RBPL_SIZE * CONFIG_RBPL_BUFSIZE, &he_dev->rbpl_pages_phys); 8721da177e4SLinus Torvalds if (he_dev->rbpl_pages == NULL) { 8731da177e4SLinus Torvalds hprintk("unable to create rbpl pages\n"); 8741da177e4SLinus Torvalds return -ENOMEM; 8751da177e4SLinus Torvalds } 8761da177e4SLinus Torvalds #endif /* USE_RBPL_POOL */ 8771da177e4SLinus Torvalds 8781da177e4SLinus Torvalds he_dev->rbpl_base = pci_alloc_consistent(he_dev->pci_dev, 8791da177e4SLinus Torvalds CONFIG_RBPL_SIZE * sizeof(struct he_rbp), &he_dev->rbpl_phys); 8801da177e4SLinus Torvalds if (he_dev->rbpl_base == NULL) { 8811da177e4SLinus Torvalds hprintk("failed to alloc rbpl\n"); 8821da177e4SLinus Torvalds return -ENOMEM; 8831da177e4SLinus Torvalds } 8841da177e4SLinus Torvalds memset(he_dev->rbpl_base, 0, CONFIG_RBPL_SIZE * sizeof(struct he_rbp)); 8851da177e4SLinus Torvalds he_dev->rbpl_virt = kmalloc(CONFIG_RBPL_SIZE * sizeof(struct he_virt), GFP_KERNEL); 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPL_SIZE; ++i) { 8881da177e4SLinus Torvalds dma_addr_t dma_handle; 8891da177e4SLinus Torvalds void *cpuaddr; 8901da177e4SLinus Torvalds 8911da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 8921da177e4SLinus Torvalds cpuaddr = pci_pool_alloc(he_dev->rbpl_pool, SLAB_KERNEL|SLAB_DMA, &dma_handle); 8931da177e4SLinus Torvalds if (cpuaddr == NULL) 8941da177e4SLinus Torvalds return -ENOMEM; 8951da177e4SLinus Torvalds #else 8961da177e4SLinus Torvalds cpuaddr = he_dev->rbpl_pages + (i * CONFIG_RBPL_BUFSIZE); 8971da177e4SLinus Torvalds dma_handle = he_dev->rbpl_pages_phys + (i * CONFIG_RBPL_BUFSIZE); 8981da177e4SLinus Torvalds #endif 8991da177e4SLinus Torvalds 9001da177e4SLinus Torvalds he_dev->rbpl_virt[i].virt = cpuaddr; 9011da177e4SLinus Torvalds he_dev->rbpl_base[i].status = RBP_LOANED | (i << RBP_INDEX_OFF); 9021da177e4SLinus Torvalds he_dev->rbpl_base[i].phys = dma_handle; 9031da177e4SLinus Torvalds } 9041da177e4SLinus Torvalds he_dev->rbpl_tail = &he_dev->rbpl_base[CONFIG_RBPL_SIZE - 1]; 9051da177e4SLinus Torvalds 9061da177e4SLinus Torvalds he_writel(he_dev, he_dev->rbpl_phys, G0_RBPL_S + (group * 32)); 9071da177e4SLinus Torvalds he_writel(he_dev, RBPL_MASK(he_dev->rbpl_tail), 9081da177e4SLinus Torvalds G0_RBPL_T + (group * 32)); 9091da177e4SLinus Torvalds he_writel(he_dev, CONFIG_RBPL_BUFSIZE/4, 9101da177e4SLinus Torvalds G0_RBPL_BS + (group * 32)); 9111da177e4SLinus Torvalds he_writel(he_dev, 9121da177e4SLinus Torvalds RBP_THRESH(CONFIG_RBPL_THRESH) | 9131da177e4SLinus Torvalds RBP_QSIZE(CONFIG_RBPL_SIZE - 1) | 9141da177e4SLinus Torvalds RBP_INT_ENB, 9151da177e4SLinus Torvalds G0_RBPL_QI + (group * 32)); 9161da177e4SLinus Torvalds 9171da177e4SLinus Torvalds /* rx buffer ready queue */ 9181da177e4SLinus Torvalds 9191da177e4SLinus Torvalds he_dev->rbrq_base = pci_alloc_consistent(he_dev->pci_dev, 9201da177e4SLinus Torvalds CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq), &he_dev->rbrq_phys); 9211da177e4SLinus Torvalds if (he_dev->rbrq_base == NULL) { 9221da177e4SLinus Torvalds hprintk("failed to allocate rbrq\n"); 9231da177e4SLinus Torvalds return -ENOMEM; 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds memset(he_dev->rbrq_base, 0, CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq)); 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvalds he_dev->rbrq_head = he_dev->rbrq_base; 9281da177e4SLinus Torvalds he_writel(he_dev, he_dev->rbrq_phys, G0_RBRQ_ST + (group * 16)); 9291da177e4SLinus Torvalds he_writel(he_dev, 0, G0_RBRQ_H + (group * 16)); 9301da177e4SLinus Torvalds he_writel(he_dev, 9311da177e4SLinus Torvalds RBRQ_THRESH(CONFIG_RBRQ_THRESH) | RBRQ_SIZE(CONFIG_RBRQ_SIZE - 1), 9321da177e4SLinus Torvalds G0_RBRQ_Q + (group * 16)); 9331da177e4SLinus Torvalds if (irq_coalesce) { 9341da177e4SLinus Torvalds hprintk("coalescing interrupts\n"); 9351da177e4SLinus Torvalds he_writel(he_dev, RBRQ_TIME(768) | RBRQ_COUNT(7), 9361da177e4SLinus Torvalds G0_RBRQ_I + (group * 16)); 9371da177e4SLinus Torvalds } else 9381da177e4SLinus Torvalds he_writel(he_dev, RBRQ_TIME(0) | RBRQ_COUNT(1), 9391da177e4SLinus Torvalds G0_RBRQ_I + (group * 16)); 9401da177e4SLinus Torvalds 9411da177e4SLinus Torvalds /* tx buffer ready queue */ 9421da177e4SLinus Torvalds 9431da177e4SLinus Torvalds he_dev->tbrq_base = pci_alloc_consistent(he_dev->pci_dev, 9441da177e4SLinus Torvalds CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq), &he_dev->tbrq_phys); 9451da177e4SLinus Torvalds if (he_dev->tbrq_base == NULL) { 9461da177e4SLinus Torvalds hprintk("failed to allocate tbrq\n"); 9471da177e4SLinus Torvalds return -ENOMEM; 9481da177e4SLinus Torvalds } 9491da177e4SLinus Torvalds memset(he_dev->tbrq_base, 0, CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq)); 9501da177e4SLinus Torvalds 9511da177e4SLinus Torvalds he_dev->tbrq_head = he_dev->tbrq_base; 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds he_writel(he_dev, he_dev->tbrq_phys, G0_TBRQ_B_T + (group * 16)); 9541da177e4SLinus Torvalds he_writel(he_dev, 0, G0_TBRQ_H + (group * 16)); 9551da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TBRQ_SIZE - 1, G0_TBRQ_S + (group * 16)); 9561da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TBRQ_THRESH, G0_TBRQ_THRESH + (group * 16)); 9571da177e4SLinus Torvalds 9581da177e4SLinus Torvalds return 0; 9591da177e4SLinus Torvalds } 9601da177e4SLinus Torvalds 9611da177e4SLinus Torvalds static int __init 9621da177e4SLinus Torvalds he_init_irq(struct he_dev *he_dev) 9631da177e4SLinus Torvalds { 9641da177e4SLinus Torvalds int i; 9651da177e4SLinus Torvalds 9661da177e4SLinus Torvalds /* 2.9.3.5 tail offset for each interrupt queue is located after the 9671da177e4SLinus Torvalds end of the interrupt queue */ 9681da177e4SLinus Torvalds 9691da177e4SLinus Torvalds he_dev->irq_base = pci_alloc_consistent(he_dev->pci_dev, 9701da177e4SLinus Torvalds (CONFIG_IRQ_SIZE+1) * sizeof(struct he_irq), &he_dev->irq_phys); 9711da177e4SLinus Torvalds if (he_dev->irq_base == NULL) { 9721da177e4SLinus Torvalds hprintk("failed to allocate irq\n"); 9731da177e4SLinus Torvalds return -ENOMEM; 9741da177e4SLinus Torvalds } 9751da177e4SLinus Torvalds he_dev->irq_tailoffset = (unsigned *) 9761da177e4SLinus Torvalds &he_dev->irq_base[CONFIG_IRQ_SIZE]; 9771da177e4SLinus Torvalds *he_dev->irq_tailoffset = 0; 9781da177e4SLinus Torvalds he_dev->irq_head = he_dev->irq_base; 9791da177e4SLinus Torvalds he_dev->irq_tail = he_dev->irq_base; 9801da177e4SLinus Torvalds 9811da177e4SLinus Torvalds for (i = 0; i < CONFIG_IRQ_SIZE; ++i) 9821da177e4SLinus Torvalds he_dev->irq_base[i].isw = ITYPE_INVALID; 9831da177e4SLinus Torvalds 9841da177e4SLinus Torvalds he_writel(he_dev, he_dev->irq_phys, IRQ0_BASE); 9851da177e4SLinus Torvalds he_writel(he_dev, 9861da177e4SLinus Torvalds IRQ_SIZE(CONFIG_IRQ_SIZE) | IRQ_THRESH(CONFIG_IRQ_THRESH), 9871da177e4SLinus Torvalds IRQ0_HEAD); 9881da177e4SLinus Torvalds he_writel(he_dev, IRQ_INT_A | IRQ_TYPE_LINE, IRQ0_CNTL); 9891da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ0_DATA); 9901da177e4SLinus Torvalds 9911da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_BASE); 9921da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_HEAD); 9931da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_CNTL); 9941da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ1_DATA); 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_BASE); 9971da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_HEAD); 9981da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_CNTL); 9991da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ2_DATA); 10001da177e4SLinus Torvalds 10011da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_BASE); 10021da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_HEAD); 10031da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_CNTL); 10041da177e4SLinus Torvalds he_writel(he_dev, 0x0, IRQ3_DATA); 10051da177e4SLinus Torvalds 10061da177e4SLinus Torvalds /* 2.9.3.2 interrupt queue mapping registers */ 10071da177e4SLinus Torvalds 10081da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_10_MAP); 10091da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_32_MAP); 10101da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_54_MAP); 10111da177e4SLinus Torvalds he_writel(he_dev, 0x0, GRP_76_MAP); 10121da177e4SLinus Torvalds 10131da177e4SLinus Torvalds if (request_irq(he_dev->pci_dev->irq, he_irq_handler, SA_INTERRUPT|SA_SHIRQ, DEV_LABEL, he_dev)) { 10141da177e4SLinus Torvalds hprintk("irq %d already in use\n", he_dev->pci_dev->irq); 10151da177e4SLinus Torvalds return -EINVAL; 10161da177e4SLinus Torvalds } 10171da177e4SLinus Torvalds 10181da177e4SLinus Torvalds he_dev->irq = he_dev->pci_dev->irq; 10191da177e4SLinus Torvalds 10201da177e4SLinus Torvalds return 0; 10211da177e4SLinus Torvalds } 10221da177e4SLinus Torvalds 10231da177e4SLinus Torvalds static int __init 10241da177e4SLinus Torvalds he_start(struct atm_dev *dev) 10251da177e4SLinus Torvalds { 10261da177e4SLinus Torvalds struct he_dev *he_dev; 10271da177e4SLinus Torvalds struct pci_dev *pci_dev; 10281da177e4SLinus Torvalds unsigned long membase; 10291da177e4SLinus Torvalds 10301da177e4SLinus Torvalds u16 command; 10311da177e4SLinus Torvalds u32 gen_cntl_0, host_cntl, lb_swap; 10321da177e4SLinus Torvalds u8 cache_size, timer; 10331da177e4SLinus Torvalds 10341da177e4SLinus Torvalds unsigned err; 10351da177e4SLinus Torvalds unsigned int status, reg; 10361da177e4SLinus Torvalds int i, group; 10371da177e4SLinus Torvalds 10381da177e4SLinus Torvalds he_dev = HE_DEV(dev); 10391da177e4SLinus Torvalds pci_dev = he_dev->pci_dev; 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds membase = pci_resource_start(pci_dev, 0); 10421da177e4SLinus Torvalds HPRINTK("membase = 0x%lx irq = %d.\n", membase, pci_dev->irq); 10431da177e4SLinus Torvalds 10441da177e4SLinus Torvalds /* 10451da177e4SLinus Torvalds * pci bus controller initialization 10461da177e4SLinus Torvalds */ 10471da177e4SLinus Torvalds 10481da177e4SLinus Torvalds /* 4.3 pci bus controller-specific initialization */ 10491da177e4SLinus Torvalds if (pci_read_config_dword(pci_dev, GEN_CNTL_0, &gen_cntl_0) != 0) { 10501da177e4SLinus Torvalds hprintk("can't read GEN_CNTL_0\n"); 10511da177e4SLinus Torvalds return -EINVAL; 10521da177e4SLinus Torvalds } 10531da177e4SLinus Torvalds gen_cntl_0 |= (MRL_ENB | MRM_ENB | IGNORE_TIMEOUT); 10541da177e4SLinus Torvalds if (pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0) != 0) { 10551da177e4SLinus Torvalds hprintk("can't write GEN_CNTL_0.\n"); 10561da177e4SLinus Torvalds return -EINVAL; 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds 10591da177e4SLinus Torvalds if (pci_read_config_word(pci_dev, PCI_COMMAND, &command) != 0) { 10601da177e4SLinus Torvalds hprintk("can't read PCI_COMMAND.\n"); 10611da177e4SLinus Torvalds return -EINVAL; 10621da177e4SLinus Torvalds } 10631da177e4SLinus Torvalds 10641da177e4SLinus Torvalds command |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE); 10651da177e4SLinus Torvalds if (pci_write_config_word(pci_dev, PCI_COMMAND, command) != 0) { 10661da177e4SLinus Torvalds hprintk("can't enable memory.\n"); 10671da177e4SLinus Torvalds return -EINVAL; 10681da177e4SLinus Torvalds } 10691da177e4SLinus Torvalds 10701da177e4SLinus Torvalds if (pci_read_config_byte(pci_dev, PCI_CACHE_LINE_SIZE, &cache_size)) { 10711da177e4SLinus Torvalds hprintk("can't read cache line size?\n"); 10721da177e4SLinus Torvalds return -EINVAL; 10731da177e4SLinus Torvalds } 10741da177e4SLinus Torvalds 10751da177e4SLinus Torvalds if (cache_size < 16) { 10761da177e4SLinus Torvalds cache_size = 16; 10771da177e4SLinus Torvalds if (pci_write_config_byte(pci_dev, PCI_CACHE_LINE_SIZE, cache_size)) 10781da177e4SLinus Torvalds hprintk("can't set cache line size to %d\n", cache_size); 10791da177e4SLinus Torvalds } 10801da177e4SLinus Torvalds 10811da177e4SLinus Torvalds if (pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &timer)) { 10821da177e4SLinus Torvalds hprintk("can't read latency timer?\n"); 10831da177e4SLinus Torvalds return -EINVAL; 10841da177e4SLinus Torvalds } 10851da177e4SLinus Torvalds 10861da177e4SLinus Torvalds /* from table 3.9 10871da177e4SLinus Torvalds * 10881da177e4SLinus Torvalds * LAT_TIMER = 1 + AVG_LAT + BURST_SIZE/BUS_SIZE 10891da177e4SLinus Torvalds * 10901da177e4SLinus Torvalds * AVG_LAT: The average first data read/write latency [maximum 16 clock cycles] 10911da177e4SLinus Torvalds * BURST_SIZE: 1536 bytes (read) for 622, 768 bytes (read) for 155 [192 clock cycles] 10921da177e4SLinus Torvalds * 10931da177e4SLinus Torvalds */ 10941da177e4SLinus Torvalds #define LAT_TIMER 209 10951da177e4SLinus Torvalds if (timer < LAT_TIMER) { 10961da177e4SLinus Torvalds HPRINTK("latency timer was %d, setting to %d\n", timer, LAT_TIMER); 10971da177e4SLinus Torvalds timer = LAT_TIMER; 10981da177e4SLinus Torvalds if (pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, timer)) 10991da177e4SLinus Torvalds hprintk("can't set latency timer to %d\n", timer); 11001da177e4SLinus Torvalds } 11011da177e4SLinus Torvalds 11021da177e4SLinus Torvalds if (!(he_dev->membase = ioremap(membase, HE_REGMAP_SIZE))) { 11031da177e4SLinus Torvalds hprintk("can't set up page mapping\n"); 11041da177e4SLinus Torvalds return -EINVAL; 11051da177e4SLinus Torvalds } 11061da177e4SLinus Torvalds 11071da177e4SLinus Torvalds /* 4.4 card reset */ 11081da177e4SLinus Torvalds he_writel(he_dev, 0x0, RESET_CNTL); 11091da177e4SLinus Torvalds he_writel(he_dev, 0xff, RESET_CNTL); 11101da177e4SLinus Torvalds 11111da177e4SLinus Torvalds udelay(16*1000); /* 16 ms */ 11121da177e4SLinus Torvalds status = he_readl(he_dev, RESET_CNTL); 11131da177e4SLinus Torvalds if ((status & BOARD_RST_STATUS) == 0) { 11141da177e4SLinus Torvalds hprintk("reset failed\n"); 11151da177e4SLinus Torvalds return -EINVAL; 11161da177e4SLinus Torvalds } 11171da177e4SLinus Torvalds 11181da177e4SLinus Torvalds /* 4.5 set bus width */ 11191da177e4SLinus Torvalds host_cntl = he_readl(he_dev, HOST_CNTL); 11201da177e4SLinus Torvalds if (host_cntl & PCI_BUS_SIZE64) 11211da177e4SLinus Torvalds gen_cntl_0 |= ENBL_64; 11221da177e4SLinus Torvalds else 11231da177e4SLinus Torvalds gen_cntl_0 &= ~ENBL_64; 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds if (disable64 == 1) { 11261da177e4SLinus Torvalds hprintk("disabling 64-bit pci bus transfers\n"); 11271da177e4SLinus Torvalds gen_cntl_0 &= ~ENBL_64; 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds if (gen_cntl_0 & ENBL_64) 11311da177e4SLinus Torvalds hprintk("64-bit transfers enabled\n"); 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0); 11341da177e4SLinus Torvalds 11351da177e4SLinus Torvalds /* 4.7 read prom contents */ 11361da177e4SLinus Torvalds for (i = 0; i < PROD_ID_LEN; ++i) 11371da177e4SLinus Torvalds he_dev->prod_id[i] = read_prom_byte(he_dev, PROD_ID + i); 11381da177e4SLinus Torvalds 11391da177e4SLinus Torvalds he_dev->media = read_prom_byte(he_dev, MEDIA); 11401da177e4SLinus Torvalds 11411da177e4SLinus Torvalds for (i = 0; i < 6; ++i) 11421da177e4SLinus Torvalds dev->esi[i] = read_prom_byte(he_dev, MAC_ADDR + i); 11431da177e4SLinus Torvalds 11441da177e4SLinus Torvalds hprintk("%s%s, %x:%x:%x:%x:%x:%x\n", 11451da177e4SLinus Torvalds he_dev->prod_id, 11461da177e4SLinus Torvalds he_dev->media & 0x40 ? "SM" : "MM", 11471da177e4SLinus Torvalds dev->esi[0], 11481da177e4SLinus Torvalds dev->esi[1], 11491da177e4SLinus Torvalds dev->esi[2], 11501da177e4SLinus Torvalds dev->esi[3], 11511da177e4SLinus Torvalds dev->esi[4], 11521da177e4SLinus Torvalds dev->esi[5]); 11531da177e4SLinus Torvalds he_dev->atm_dev->link_rate = he_is622(he_dev) ? 11541da177e4SLinus Torvalds ATM_OC12_PCR : ATM_OC3_PCR; 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds /* 4.6 set host endianess */ 11571da177e4SLinus Torvalds lb_swap = he_readl(he_dev, LB_SWAP); 11581da177e4SLinus Torvalds if (he_is622(he_dev)) 11591da177e4SLinus Torvalds lb_swap &= ~XFER_SIZE; /* 4 cells */ 11601da177e4SLinus Torvalds else 11611da177e4SLinus Torvalds lb_swap |= XFER_SIZE; /* 8 cells */ 11621da177e4SLinus Torvalds #ifdef __BIG_ENDIAN 11631da177e4SLinus Torvalds lb_swap |= DESC_WR_SWAP | INTR_SWAP | BIG_ENDIAN_HOST; 11641da177e4SLinus Torvalds #else 11651da177e4SLinus Torvalds lb_swap &= ~(DESC_WR_SWAP | INTR_SWAP | BIG_ENDIAN_HOST | 11661da177e4SLinus Torvalds DATA_WR_SWAP | DATA_RD_SWAP | DESC_RD_SWAP); 11671da177e4SLinus Torvalds #endif /* __BIG_ENDIAN */ 11681da177e4SLinus Torvalds he_writel(he_dev, lb_swap, LB_SWAP); 11691da177e4SLinus Torvalds 11701da177e4SLinus Torvalds /* 4.8 sdram controller initialization */ 11711da177e4SLinus Torvalds he_writel(he_dev, he_is622(he_dev) ? LB_64_ENB : 0x0, SDRAM_CTL); 11721da177e4SLinus Torvalds 11731da177e4SLinus Torvalds /* 4.9 initialize rnum value */ 11741da177e4SLinus Torvalds lb_swap |= SWAP_RNUM_MAX(0xf); 11751da177e4SLinus Torvalds he_writel(he_dev, lb_swap, LB_SWAP); 11761da177e4SLinus Torvalds 11771da177e4SLinus Torvalds /* 4.10 initialize the interrupt queues */ 11781da177e4SLinus Torvalds if ((err = he_init_irq(he_dev)) != 0) 11791da177e4SLinus Torvalds return err; 11801da177e4SLinus Torvalds 11811da177e4SLinus Torvalds #ifdef USE_TASKLET 11821da177e4SLinus Torvalds tasklet_init(&he_dev->tasklet, he_tasklet, (unsigned long) he_dev); 11831da177e4SLinus Torvalds #endif 11841da177e4SLinus Torvalds spin_lock_init(&he_dev->global_lock); 11851da177e4SLinus Torvalds 11861da177e4SLinus Torvalds /* 4.11 enable pci bus controller state machines */ 11871da177e4SLinus Torvalds host_cntl |= (OUTFF_ENB | CMDFF_ENB | 11881da177e4SLinus Torvalds QUICK_RD_RETRY | QUICK_WR_RETRY | PERR_INT_ENB); 11891da177e4SLinus Torvalds he_writel(he_dev, host_cntl, HOST_CNTL); 11901da177e4SLinus Torvalds 11911da177e4SLinus Torvalds gen_cntl_0 |= INT_PROC_ENBL|INIT_ENB; 11921da177e4SLinus Torvalds pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0); 11931da177e4SLinus Torvalds 11941da177e4SLinus Torvalds /* 11951da177e4SLinus Torvalds * atm network controller initialization 11961da177e4SLinus Torvalds */ 11971da177e4SLinus Torvalds 11981da177e4SLinus Torvalds /* 5.1.1 generic configuration state */ 11991da177e4SLinus Torvalds 12001da177e4SLinus Torvalds /* 12011da177e4SLinus Torvalds * local (cell) buffer memory map 12021da177e4SLinus Torvalds * 12031da177e4SLinus Torvalds * HE155 HE622 12041da177e4SLinus Torvalds * 12051da177e4SLinus Torvalds * 0 ____________1023 bytes 0 _______________________2047 bytes 12061da177e4SLinus Torvalds * | | | | | 12071da177e4SLinus Torvalds * | utility | | rx0 | | 12081da177e4SLinus Torvalds * 5|____________| 255|___________________| u | 12091da177e4SLinus Torvalds * 6| | 256| | t | 12101da177e4SLinus Torvalds * | | | | i | 12111da177e4SLinus Torvalds * | rx0 | row | tx | l | 12121da177e4SLinus Torvalds * | | | | i | 12131da177e4SLinus Torvalds * | | 767|___________________| t | 12141da177e4SLinus Torvalds * 517|____________| 768| | y | 12151da177e4SLinus Torvalds * row 518| | | rx1 | | 12161da177e4SLinus Torvalds * | | 1023|___________________|___| 12171da177e4SLinus Torvalds * | | 12181da177e4SLinus Torvalds * | tx | 12191da177e4SLinus Torvalds * | | 12201da177e4SLinus Torvalds * | | 12211da177e4SLinus Torvalds * 1535|____________| 12221da177e4SLinus Torvalds * 1536| | 12231da177e4SLinus Torvalds * | rx1 | 12241da177e4SLinus Torvalds * 2047|____________| 12251da177e4SLinus Torvalds * 12261da177e4SLinus Torvalds */ 12271da177e4SLinus Torvalds 12281da177e4SLinus Torvalds /* total 4096 connections */ 12291da177e4SLinus Torvalds he_dev->vcibits = CONFIG_DEFAULT_VCIBITS; 12301da177e4SLinus Torvalds he_dev->vpibits = CONFIG_DEFAULT_VPIBITS; 12311da177e4SLinus Torvalds 12321da177e4SLinus Torvalds if (nvpibits != -1 && nvcibits != -1 && nvpibits+nvcibits != HE_MAXCIDBITS) { 12331da177e4SLinus Torvalds hprintk("nvpibits + nvcibits != %d\n", HE_MAXCIDBITS); 12341da177e4SLinus Torvalds return -ENODEV; 12351da177e4SLinus Torvalds } 12361da177e4SLinus Torvalds 12371da177e4SLinus Torvalds if (nvpibits != -1) { 12381da177e4SLinus Torvalds he_dev->vpibits = nvpibits; 12391da177e4SLinus Torvalds he_dev->vcibits = HE_MAXCIDBITS - nvpibits; 12401da177e4SLinus Torvalds } 12411da177e4SLinus Torvalds 12421da177e4SLinus Torvalds if (nvcibits != -1) { 12431da177e4SLinus Torvalds he_dev->vcibits = nvcibits; 12441da177e4SLinus Torvalds he_dev->vpibits = HE_MAXCIDBITS - nvcibits; 12451da177e4SLinus Torvalds } 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds 12481da177e4SLinus Torvalds if (he_is622(he_dev)) { 12491da177e4SLinus Torvalds he_dev->cells_per_row = 40; 12501da177e4SLinus Torvalds he_dev->bytes_per_row = 2048; 12511da177e4SLinus Torvalds he_dev->r0_numrows = 256; 12521da177e4SLinus Torvalds he_dev->tx_numrows = 512; 12531da177e4SLinus Torvalds he_dev->r1_numrows = 256; 12541da177e4SLinus Torvalds he_dev->r0_startrow = 0; 12551da177e4SLinus Torvalds he_dev->tx_startrow = 256; 12561da177e4SLinus Torvalds he_dev->r1_startrow = 768; 12571da177e4SLinus Torvalds } else { 12581da177e4SLinus Torvalds he_dev->cells_per_row = 20; 12591da177e4SLinus Torvalds he_dev->bytes_per_row = 1024; 12601da177e4SLinus Torvalds he_dev->r0_numrows = 512; 12611da177e4SLinus Torvalds he_dev->tx_numrows = 1018; 12621da177e4SLinus Torvalds he_dev->r1_numrows = 512; 12631da177e4SLinus Torvalds he_dev->r0_startrow = 6; 12641da177e4SLinus Torvalds he_dev->tx_startrow = 518; 12651da177e4SLinus Torvalds he_dev->r1_startrow = 1536; 12661da177e4SLinus Torvalds } 12671da177e4SLinus Torvalds 12681da177e4SLinus Torvalds he_dev->cells_per_lbuf = 4; 12691da177e4SLinus Torvalds he_dev->buffer_limit = 4; 12701da177e4SLinus Torvalds he_dev->r0_numbuffs = he_dev->r0_numrows * 12711da177e4SLinus Torvalds he_dev->cells_per_row / he_dev->cells_per_lbuf; 12721da177e4SLinus Torvalds if (he_dev->r0_numbuffs > 2560) 12731da177e4SLinus Torvalds he_dev->r0_numbuffs = 2560; 12741da177e4SLinus Torvalds 12751da177e4SLinus Torvalds he_dev->r1_numbuffs = he_dev->r1_numrows * 12761da177e4SLinus Torvalds he_dev->cells_per_row / he_dev->cells_per_lbuf; 12771da177e4SLinus Torvalds if (he_dev->r1_numbuffs > 2560) 12781da177e4SLinus Torvalds he_dev->r1_numbuffs = 2560; 12791da177e4SLinus Torvalds 12801da177e4SLinus Torvalds he_dev->tx_numbuffs = he_dev->tx_numrows * 12811da177e4SLinus Torvalds he_dev->cells_per_row / he_dev->cells_per_lbuf; 12821da177e4SLinus Torvalds if (he_dev->tx_numbuffs > 5120) 12831da177e4SLinus Torvalds he_dev->tx_numbuffs = 5120; 12841da177e4SLinus Torvalds 12851da177e4SLinus Torvalds /* 5.1.2 configure hardware dependent registers */ 12861da177e4SLinus Torvalds 12871da177e4SLinus Torvalds he_writel(he_dev, 12881da177e4SLinus Torvalds SLICE_X(0x2) | ARB_RNUM_MAX(0xf) | TH_PRTY(0x3) | 12891da177e4SLinus Torvalds RH_PRTY(0x3) | TL_PRTY(0x2) | RL_PRTY(0x1) | 12901da177e4SLinus Torvalds (he_is622(he_dev) ? BUS_MULTI(0x28) : BUS_MULTI(0x46)) | 12911da177e4SLinus Torvalds (he_is622(he_dev) ? NET_PREF(0x50) : NET_PREF(0x8c)), 12921da177e4SLinus Torvalds LBARB); 12931da177e4SLinus Torvalds 12941da177e4SLinus Torvalds he_writel(he_dev, BANK_ON | 12951da177e4SLinus Torvalds (he_is622(he_dev) ? (REF_RATE(0x384) | WIDE_DATA) : REF_RATE(0x150)), 12961da177e4SLinus Torvalds SDRAMCON); 12971da177e4SLinus Torvalds 12981da177e4SLinus Torvalds he_writel(he_dev, 12991da177e4SLinus Torvalds (he_is622(he_dev) ? RM_BANK_WAIT(1) : RM_BANK_WAIT(0)) | 13001da177e4SLinus Torvalds RM_RW_WAIT(1), RCMCONFIG); 13011da177e4SLinus Torvalds he_writel(he_dev, 13021da177e4SLinus Torvalds (he_is622(he_dev) ? TM_BANK_WAIT(2) : TM_BANK_WAIT(1)) | 13031da177e4SLinus Torvalds TM_RW_WAIT(1), TCMCONFIG); 13041da177e4SLinus Torvalds 13051da177e4SLinus Torvalds he_writel(he_dev, he_dev->cells_per_lbuf * ATM_CELL_PAYLOAD, LB_CONFIG); 13061da177e4SLinus Torvalds 13071da177e4SLinus Torvalds he_writel(he_dev, 13081da177e4SLinus Torvalds (he_is622(he_dev) ? UT_RD_DELAY(8) : UT_RD_DELAY(0)) | 13091da177e4SLinus Torvalds (he_is622(he_dev) ? RC_UT_MODE(0) : RC_UT_MODE(1)) | 13101da177e4SLinus Torvalds RX_VALVP(he_dev->vpibits) | 13111da177e4SLinus Torvalds RX_VALVC(he_dev->vcibits), RC_CONFIG); 13121da177e4SLinus Torvalds 13131da177e4SLinus Torvalds he_writel(he_dev, DRF_THRESH(0x20) | 13141da177e4SLinus Torvalds (he_is622(he_dev) ? TX_UT_MODE(0) : TX_UT_MODE(1)) | 13151da177e4SLinus Torvalds TX_VCI_MASK(he_dev->vcibits) | 13161da177e4SLinus Torvalds LBFREE_CNT(he_dev->tx_numbuffs), TX_CONFIG); 13171da177e4SLinus Torvalds 13181da177e4SLinus Torvalds he_writel(he_dev, 0x0, TXAAL5_PROTO); 13191da177e4SLinus Torvalds 13201da177e4SLinus Torvalds he_writel(he_dev, PHY_INT_ENB | 13211da177e4SLinus Torvalds (he_is622(he_dev) ? PTMR_PRE(67 - 1) : PTMR_PRE(50 - 1)), 13221da177e4SLinus Torvalds RH_CONFIG); 13231da177e4SLinus Torvalds 13241da177e4SLinus Torvalds /* 5.1.3 initialize connection memory */ 13251da177e4SLinus Torvalds 13261da177e4SLinus Torvalds for (i = 0; i < TCM_MEM_SIZE; ++i) 13271da177e4SLinus Torvalds he_writel_tcm(he_dev, 0, i); 13281da177e4SLinus Torvalds 13291da177e4SLinus Torvalds for (i = 0; i < RCM_MEM_SIZE; ++i) 13301da177e4SLinus Torvalds he_writel_rcm(he_dev, 0, i); 13311da177e4SLinus Torvalds 13321da177e4SLinus Torvalds /* 13331da177e4SLinus Torvalds * transmit connection memory map 13341da177e4SLinus Torvalds * 13351da177e4SLinus Torvalds * tx memory 13361da177e4SLinus Torvalds * 0x0 ___________________ 13371da177e4SLinus Torvalds * | | 13381da177e4SLinus Torvalds * | | 13391da177e4SLinus Torvalds * | TSRa | 13401da177e4SLinus Torvalds * | | 13411da177e4SLinus Torvalds * | | 13421da177e4SLinus Torvalds * 0x8000|___________________| 13431da177e4SLinus Torvalds * | | 13441da177e4SLinus Torvalds * | TSRb | 13451da177e4SLinus Torvalds * 0xc000|___________________| 13461da177e4SLinus Torvalds * | | 13471da177e4SLinus Torvalds * | TSRc | 13481da177e4SLinus Torvalds * 0xe000|___________________| 13491da177e4SLinus Torvalds * | TSRd | 13501da177e4SLinus Torvalds * 0xf000|___________________| 13511da177e4SLinus Torvalds * | tmABR | 13521da177e4SLinus Torvalds * 0x10000|___________________| 13531da177e4SLinus Torvalds * | | 13541da177e4SLinus Torvalds * | tmTPD | 13551da177e4SLinus Torvalds * |___________________| 13561da177e4SLinus Torvalds * | | 13571da177e4SLinus Torvalds * .... 13581da177e4SLinus Torvalds * 0x1ffff|___________________| 13591da177e4SLinus Torvalds * 13601da177e4SLinus Torvalds * 13611da177e4SLinus Torvalds */ 13621da177e4SLinus Torvalds 13631da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TSRB, TSRB_BA); 13641da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TSRC, TSRC_BA); 13651da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TSRD, TSRD_BA); 13661da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TMABR, TMABR_BA); 13671da177e4SLinus Torvalds he_writel(he_dev, CONFIG_TPDBA, TPD_BA); 13681da177e4SLinus Torvalds 13691da177e4SLinus Torvalds 13701da177e4SLinus Torvalds /* 13711da177e4SLinus Torvalds * receive connection memory map 13721da177e4SLinus Torvalds * 13731da177e4SLinus Torvalds * 0x0 ___________________ 13741da177e4SLinus Torvalds * | | 13751da177e4SLinus Torvalds * | | 13761da177e4SLinus Torvalds * | RSRa | 13771da177e4SLinus Torvalds * | | 13781da177e4SLinus Torvalds * | | 13791da177e4SLinus Torvalds * 0x8000|___________________| 13801da177e4SLinus Torvalds * | | 13811da177e4SLinus Torvalds * | rx0/1 | 13821da177e4SLinus Torvalds * | LBM | link lists of local 13831da177e4SLinus Torvalds * | tx | buffer memory 13841da177e4SLinus Torvalds * | | 13851da177e4SLinus Torvalds * 0xd000|___________________| 13861da177e4SLinus Torvalds * | | 13871da177e4SLinus Torvalds * | rmABR | 13881da177e4SLinus Torvalds * 0xe000|___________________| 13891da177e4SLinus Torvalds * | | 13901da177e4SLinus Torvalds * | RSRb | 13911da177e4SLinus Torvalds * |___________________| 13921da177e4SLinus Torvalds * | | 13931da177e4SLinus Torvalds * .... 13941da177e4SLinus Torvalds * 0xffff|___________________| 13951da177e4SLinus Torvalds */ 13961da177e4SLinus Torvalds 13971da177e4SLinus Torvalds he_writel(he_dev, 0x08000, RCMLBM_BA); 13981da177e4SLinus Torvalds he_writel(he_dev, 0x0e000, RCMRSRB_BA); 13991da177e4SLinus Torvalds he_writel(he_dev, 0x0d800, RCMABR_BA); 14001da177e4SLinus Torvalds 14011da177e4SLinus Torvalds /* 5.1.4 initialize local buffer free pools linked lists */ 14021da177e4SLinus Torvalds 14031da177e4SLinus Torvalds he_init_rx_lbfp0(he_dev); 14041da177e4SLinus Torvalds he_init_rx_lbfp1(he_dev); 14051da177e4SLinus Torvalds 14061da177e4SLinus Torvalds he_writel(he_dev, 0x0, RLBC_H); 14071da177e4SLinus Torvalds he_writel(he_dev, 0x0, RLBC_T); 14081da177e4SLinus Torvalds he_writel(he_dev, 0x0, RLBC_H2); 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds he_writel(he_dev, 512, RXTHRSH); /* 10% of r0+r1 buffers */ 14111da177e4SLinus Torvalds he_writel(he_dev, 256, LITHRSH); /* 5% of r0+r1 buffers */ 14121da177e4SLinus Torvalds 14131da177e4SLinus Torvalds he_init_tx_lbfp(he_dev); 14141da177e4SLinus Torvalds 14151da177e4SLinus Torvalds he_writel(he_dev, he_is622(he_dev) ? 0x104780 : 0x800, UBUFF_BA); 14161da177e4SLinus Torvalds 14171da177e4SLinus Torvalds /* 5.1.5 initialize intermediate receive queues */ 14181da177e4SLinus Torvalds 14191da177e4SLinus Torvalds if (he_is622(he_dev)) { 14201da177e4SLinus Torvalds he_writel(he_dev, 0x000f, G0_INMQ_S); 14211da177e4SLinus Torvalds he_writel(he_dev, 0x200f, G0_INMQ_L); 14221da177e4SLinus Torvalds 14231da177e4SLinus Torvalds he_writel(he_dev, 0x001f, G1_INMQ_S); 14241da177e4SLinus Torvalds he_writel(he_dev, 0x201f, G1_INMQ_L); 14251da177e4SLinus Torvalds 14261da177e4SLinus Torvalds he_writel(he_dev, 0x002f, G2_INMQ_S); 14271da177e4SLinus Torvalds he_writel(he_dev, 0x202f, G2_INMQ_L); 14281da177e4SLinus Torvalds 14291da177e4SLinus Torvalds he_writel(he_dev, 0x003f, G3_INMQ_S); 14301da177e4SLinus Torvalds he_writel(he_dev, 0x203f, G3_INMQ_L); 14311da177e4SLinus Torvalds 14321da177e4SLinus Torvalds he_writel(he_dev, 0x004f, G4_INMQ_S); 14331da177e4SLinus Torvalds he_writel(he_dev, 0x204f, G4_INMQ_L); 14341da177e4SLinus Torvalds 14351da177e4SLinus Torvalds he_writel(he_dev, 0x005f, G5_INMQ_S); 14361da177e4SLinus Torvalds he_writel(he_dev, 0x205f, G5_INMQ_L); 14371da177e4SLinus Torvalds 14381da177e4SLinus Torvalds he_writel(he_dev, 0x006f, G6_INMQ_S); 14391da177e4SLinus Torvalds he_writel(he_dev, 0x206f, G6_INMQ_L); 14401da177e4SLinus Torvalds 14411da177e4SLinus Torvalds he_writel(he_dev, 0x007f, G7_INMQ_S); 14421da177e4SLinus Torvalds he_writel(he_dev, 0x207f, G7_INMQ_L); 14431da177e4SLinus Torvalds } else { 14441da177e4SLinus Torvalds he_writel(he_dev, 0x0000, G0_INMQ_S); 14451da177e4SLinus Torvalds he_writel(he_dev, 0x0008, G0_INMQ_L); 14461da177e4SLinus Torvalds 14471da177e4SLinus Torvalds he_writel(he_dev, 0x0001, G1_INMQ_S); 14481da177e4SLinus Torvalds he_writel(he_dev, 0x0009, G1_INMQ_L); 14491da177e4SLinus Torvalds 14501da177e4SLinus Torvalds he_writel(he_dev, 0x0002, G2_INMQ_S); 14511da177e4SLinus Torvalds he_writel(he_dev, 0x000a, G2_INMQ_L); 14521da177e4SLinus Torvalds 14531da177e4SLinus Torvalds he_writel(he_dev, 0x0003, G3_INMQ_S); 14541da177e4SLinus Torvalds he_writel(he_dev, 0x000b, G3_INMQ_L); 14551da177e4SLinus Torvalds 14561da177e4SLinus Torvalds he_writel(he_dev, 0x0004, G4_INMQ_S); 14571da177e4SLinus Torvalds he_writel(he_dev, 0x000c, G4_INMQ_L); 14581da177e4SLinus Torvalds 14591da177e4SLinus Torvalds he_writel(he_dev, 0x0005, G5_INMQ_S); 14601da177e4SLinus Torvalds he_writel(he_dev, 0x000d, G5_INMQ_L); 14611da177e4SLinus Torvalds 14621da177e4SLinus Torvalds he_writel(he_dev, 0x0006, G6_INMQ_S); 14631da177e4SLinus Torvalds he_writel(he_dev, 0x000e, G6_INMQ_L); 14641da177e4SLinus Torvalds 14651da177e4SLinus Torvalds he_writel(he_dev, 0x0007, G7_INMQ_S); 14661da177e4SLinus Torvalds he_writel(he_dev, 0x000f, G7_INMQ_L); 14671da177e4SLinus Torvalds } 14681da177e4SLinus Torvalds 14691da177e4SLinus Torvalds /* 5.1.6 application tunable parameters */ 14701da177e4SLinus Torvalds 14711da177e4SLinus Torvalds he_writel(he_dev, 0x0, MCC); 14721da177e4SLinus Torvalds he_writel(he_dev, 0x0, OEC); 14731da177e4SLinus Torvalds he_writel(he_dev, 0x0, DCC); 14741da177e4SLinus Torvalds he_writel(he_dev, 0x0, CEC); 14751da177e4SLinus Torvalds 14761da177e4SLinus Torvalds /* 5.1.7 cs block initialization */ 14771da177e4SLinus Torvalds 14781da177e4SLinus Torvalds he_init_cs_block(he_dev); 14791da177e4SLinus Torvalds 14801da177e4SLinus Torvalds /* 5.1.8 cs block connection memory initialization */ 14811da177e4SLinus Torvalds 14821da177e4SLinus Torvalds if (he_init_cs_block_rcm(he_dev) < 0) 14831da177e4SLinus Torvalds return -ENOMEM; 14841da177e4SLinus Torvalds 14851da177e4SLinus Torvalds /* 5.1.10 initialize host structures */ 14861da177e4SLinus Torvalds 14871da177e4SLinus Torvalds he_init_tpdrq(he_dev); 14881da177e4SLinus Torvalds 14891da177e4SLinus Torvalds #ifdef USE_TPD_POOL 14901da177e4SLinus Torvalds he_dev->tpd_pool = pci_pool_create("tpd", he_dev->pci_dev, 14911da177e4SLinus Torvalds sizeof(struct he_tpd), TPD_ALIGNMENT, 0); 14921da177e4SLinus Torvalds if (he_dev->tpd_pool == NULL) { 14931da177e4SLinus Torvalds hprintk("unable to create tpd pci_pool\n"); 14941da177e4SLinus Torvalds return -ENOMEM; 14951da177e4SLinus Torvalds } 14961da177e4SLinus Torvalds 14971da177e4SLinus Torvalds INIT_LIST_HEAD(&he_dev->outstanding_tpds); 14981da177e4SLinus Torvalds #else 14991da177e4SLinus Torvalds he_dev->tpd_base = (void *) pci_alloc_consistent(he_dev->pci_dev, 15001da177e4SLinus Torvalds CONFIG_NUMTPDS * sizeof(struct he_tpd), &he_dev->tpd_base_phys); 15011da177e4SLinus Torvalds if (!he_dev->tpd_base) 15021da177e4SLinus Torvalds return -ENOMEM; 15031da177e4SLinus Torvalds 15041da177e4SLinus Torvalds for (i = 0; i < CONFIG_NUMTPDS; ++i) { 15051da177e4SLinus Torvalds he_dev->tpd_base[i].status = (i << TPD_ADDR_SHIFT); 15061da177e4SLinus Torvalds he_dev->tpd_base[i].inuse = 0; 15071da177e4SLinus Torvalds } 15081da177e4SLinus Torvalds 15091da177e4SLinus Torvalds he_dev->tpd_head = he_dev->tpd_base; 15101da177e4SLinus Torvalds he_dev->tpd_end = &he_dev->tpd_base[CONFIG_NUMTPDS - 1]; 15111da177e4SLinus Torvalds #endif 15121da177e4SLinus Torvalds 15131da177e4SLinus Torvalds if (he_init_group(he_dev, 0) != 0) 15141da177e4SLinus Torvalds return -ENOMEM; 15151da177e4SLinus Torvalds 15161da177e4SLinus Torvalds for (group = 1; group < HE_NUM_GROUPS; ++group) { 15171da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_S + (group * 32)); 15181da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_T + (group * 32)); 15191da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPS_QI + (group * 32)); 15201da177e4SLinus Torvalds he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0), 15211da177e4SLinus Torvalds G0_RBPS_BS + (group * 32)); 15221da177e4SLinus Torvalds 15231da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPL_S + (group * 32)); 15241da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPL_T + (group * 32)); 15251da177e4SLinus Torvalds he_writel(he_dev, RBP_THRESH(0x1) | RBP_QSIZE(0x0), 15261da177e4SLinus Torvalds G0_RBPL_QI + (group * 32)); 15271da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBPL_BS + (group * 32)); 15281da177e4SLinus Torvalds 15291da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBRQ_ST + (group * 16)); 15301da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBRQ_H + (group * 16)); 15311da177e4SLinus Torvalds he_writel(he_dev, RBRQ_THRESH(0x1) | RBRQ_SIZE(0x0), 15321da177e4SLinus Torvalds G0_RBRQ_Q + (group * 16)); 15331da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_RBRQ_I + (group * 16)); 15341da177e4SLinus Torvalds 15351da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_TBRQ_B_T + (group * 16)); 15361da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_TBRQ_H + (group * 16)); 15371da177e4SLinus Torvalds he_writel(he_dev, TBRQ_THRESH(0x1), 15381da177e4SLinus Torvalds G0_TBRQ_THRESH + (group * 16)); 15391da177e4SLinus Torvalds he_writel(he_dev, 0x0, G0_TBRQ_S + (group * 16)); 15401da177e4SLinus Torvalds } 15411da177e4SLinus Torvalds 15421da177e4SLinus Torvalds /* host status page */ 15431da177e4SLinus Torvalds 15441da177e4SLinus Torvalds he_dev->hsp = pci_alloc_consistent(he_dev->pci_dev, 15451da177e4SLinus Torvalds sizeof(struct he_hsp), &he_dev->hsp_phys); 15461da177e4SLinus Torvalds if (he_dev->hsp == NULL) { 15471da177e4SLinus Torvalds hprintk("failed to allocate host status page\n"); 15481da177e4SLinus Torvalds return -ENOMEM; 15491da177e4SLinus Torvalds } 15501da177e4SLinus Torvalds memset(he_dev->hsp, 0, sizeof(struct he_hsp)); 15511da177e4SLinus Torvalds he_writel(he_dev, he_dev->hsp_phys, HSP_BA); 15521da177e4SLinus Torvalds 15531da177e4SLinus Torvalds /* initialize framer */ 15541da177e4SLinus Torvalds 15551da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 15561da177e4SLinus Torvalds suni_init(he_dev->atm_dev); 15571da177e4SLinus Torvalds if (he_dev->atm_dev->phy && he_dev->atm_dev->phy->start) 15581da177e4SLinus Torvalds he_dev->atm_dev->phy->start(he_dev->atm_dev); 15591da177e4SLinus Torvalds #endif /* CONFIG_ATM_HE_USE_SUNI */ 15601da177e4SLinus Torvalds 15611da177e4SLinus Torvalds if (sdh) { 15621da177e4SLinus Torvalds /* this really should be in suni.c but for now... */ 15631da177e4SLinus Torvalds int val; 15641da177e4SLinus Torvalds 15651da177e4SLinus Torvalds val = he_phy_get(he_dev->atm_dev, SUNI_TPOP_APM); 15661da177e4SLinus Torvalds val = (val & ~SUNI_TPOP_APM_S) | (SUNI_TPOP_S_SDH << SUNI_TPOP_APM_S_SHIFT); 15671da177e4SLinus Torvalds he_phy_put(he_dev->atm_dev, val, SUNI_TPOP_APM); 15681da177e4SLinus Torvalds } 15691da177e4SLinus Torvalds 15701da177e4SLinus Torvalds /* 5.1.12 enable transmit and receive */ 15711da177e4SLinus Torvalds 15721da177e4SLinus Torvalds reg = he_readl_mbox(he_dev, CS_ERCTL0); 15731da177e4SLinus Torvalds reg |= TX_ENABLE|ER_ENABLE; 15741da177e4SLinus Torvalds he_writel_mbox(he_dev, reg, CS_ERCTL0); 15751da177e4SLinus Torvalds 15761da177e4SLinus Torvalds reg = he_readl(he_dev, RC_CONFIG); 15771da177e4SLinus Torvalds reg |= RX_ENABLE; 15781da177e4SLinus Torvalds he_writel(he_dev, reg, RC_CONFIG); 15791da177e4SLinus Torvalds 15801da177e4SLinus Torvalds for (i = 0; i < HE_NUM_CS_STPER; ++i) { 15811da177e4SLinus Torvalds he_dev->cs_stper[i].inuse = 0; 15821da177e4SLinus Torvalds he_dev->cs_stper[i].pcr = -1; 15831da177e4SLinus Torvalds } 15841da177e4SLinus Torvalds he_dev->total_bw = 0; 15851da177e4SLinus Torvalds 15861da177e4SLinus Torvalds 15871da177e4SLinus Torvalds /* atm linux initialization */ 15881da177e4SLinus Torvalds 15891da177e4SLinus Torvalds he_dev->atm_dev->ci_range.vpi_bits = he_dev->vpibits; 15901da177e4SLinus Torvalds he_dev->atm_dev->ci_range.vci_bits = he_dev->vcibits; 15911da177e4SLinus Torvalds 15921da177e4SLinus Torvalds he_dev->irq_peak = 0; 15931da177e4SLinus Torvalds he_dev->rbrq_peak = 0; 15941da177e4SLinus Torvalds he_dev->rbpl_peak = 0; 15951da177e4SLinus Torvalds he_dev->tbrq_peak = 0; 15961da177e4SLinus Torvalds 15971da177e4SLinus Torvalds HPRINTK("hell bent for leather!\n"); 15981da177e4SLinus Torvalds 15991da177e4SLinus Torvalds return 0; 16001da177e4SLinus Torvalds } 16011da177e4SLinus Torvalds 16021da177e4SLinus Torvalds static void 16031da177e4SLinus Torvalds he_stop(struct he_dev *he_dev) 16041da177e4SLinus Torvalds { 16051da177e4SLinus Torvalds u16 command; 16061da177e4SLinus Torvalds u32 gen_cntl_0, reg; 16071da177e4SLinus Torvalds struct pci_dev *pci_dev; 16081da177e4SLinus Torvalds 16091da177e4SLinus Torvalds pci_dev = he_dev->pci_dev; 16101da177e4SLinus Torvalds 16111da177e4SLinus Torvalds /* disable interrupts */ 16121da177e4SLinus Torvalds 16131da177e4SLinus Torvalds if (he_dev->membase) { 16141da177e4SLinus Torvalds pci_read_config_dword(pci_dev, GEN_CNTL_0, &gen_cntl_0); 16151da177e4SLinus Torvalds gen_cntl_0 &= ~(INT_PROC_ENBL | INIT_ENB); 16161da177e4SLinus Torvalds pci_write_config_dword(pci_dev, GEN_CNTL_0, gen_cntl_0); 16171da177e4SLinus Torvalds 16181da177e4SLinus Torvalds #ifdef USE_TASKLET 16191da177e4SLinus Torvalds tasklet_disable(&he_dev->tasklet); 16201da177e4SLinus Torvalds #endif 16211da177e4SLinus Torvalds 16221da177e4SLinus Torvalds /* disable recv and transmit */ 16231da177e4SLinus Torvalds 16241da177e4SLinus Torvalds reg = he_readl_mbox(he_dev, CS_ERCTL0); 16251da177e4SLinus Torvalds reg &= ~(TX_ENABLE|ER_ENABLE); 16261da177e4SLinus Torvalds he_writel_mbox(he_dev, reg, CS_ERCTL0); 16271da177e4SLinus Torvalds 16281da177e4SLinus Torvalds reg = he_readl(he_dev, RC_CONFIG); 16291da177e4SLinus Torvalds reg &= ~(RX_ENABLE); 16301da177e4SLinus Torvalds he_writel(he_dev, reg, RC_CONFIG); 16311da177e4SLinus Torvalds } 16321da177e4SLinus Torvalds 16331da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 16341da177e4SLinus Torvalds if (he_dev->atm_dev->phy && he_dev->atm_dev->phy->stop) 16351da177e4SLinus Torvalds he_dev->atm_dev->phy->stop(he_dev->atm_dev); 16361da177e4SLinus Torvalds #endif /* CONFIG_ATM_HE_USE_SUNI */ 16371da177e4SLinus Torvalds 16381da177e4SLinus Torvalds if (he_dev->irq) 16391da177e4SLinus Torvalds free_irq(he_dev->irq, he_dev); 16401da177e4SLinus Torvalds 16411da177e4SLinus Torvalds if (he_dev->irq_base) 16421da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, (CONFIG_IRQ_SIZE+1) 16431da177e4SLinus Torvalds * sizeof(struct he_irq), he_dev->irq_base, he_dev->irq_phys); 16441da177e4SLinus Torvalds 16451da177e4SLinus Torvalds if (he_dev->hsp) 16461da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, sizeof(struct he_hsp), 16471da177e4SLinus Torvalds he_dev->hsp, he_dev->hsp_phys); 16481da177e4SLinus Torvalds 16491da177e4SLinus Torvalds if (he_dev->rbpl_base) { 16501da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 16511da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPL_SIZE; ++i) { 16521da177e4SLinus Torvalds void *cpuaddr = he_dev->rbpl_virt[i].virt; 16531da177e4SLinus Torvalds dma_addr_t dma_handle = he_dev->rbpl_base[i].phys; 16541da177e4SLinus Torvalds 16551da177e4SLinus Torvalds pci_pool_free(he_dev->rbpl_pool, cpuaddr, dma_handle); 16561da177e4SLinus Torvalds } 16571da177e4SLinus Torvalds #else 16581da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPL_SIZE 16591da177e4SLinus Torvalds * CONFIG_RBPL_BUFSIZE, he_dev->rbpl_pages, he_dev->rbpl_pages_phys); 16601da177e4SLinus Torvalds #endif 16611da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPL_SIZE 16621da177e4SLinus Torvalds * sizeof(struct he_rbp), he_dev->rbpl_base, he_dev->rbpl_phys); 16631da177e4SLinus Torvalds } 16641da177e4SLinus Torvalds 16651da177e4SLinus Torvalds #ifdef USE_RBPL_POOL 16661da177e4SLinus Torvalds if (he_dev->rbpl_pool) 16671da177e4SLinus Torvalds pci_pool_destroy(he_dev->rbpl_pool); 16681da177e4SLinus Torvalds #endif 16691da177e4SLinus Torvalds 16701da177e4SLinus Torvalds #ifdef USE_RBPS 16711da177e4SLinus Torvalds if (he_dev->rbps_base) { 16721da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 16731da177e4SLinus Torvalds for (i = 0; i < CONFIG_RBPS_SIZE; ++i) { 16741da177e4SLinus Torvalds void *cpuaddr = he_dev->rbps_virt[i].virt; 16751da177e4SLinus Torvalds dma_addr_t dma_handle = he_dev->rbps_base[i].phys; 16761da177e4SLinus Torvalds 16771da177e4SLinus Torvalds pci_pool_free(he_dev->rbps_pool, cpuaddr, dma_handle); 16781da177e4SLinus Torvalds } 16791da177e4SLinus Torvalds #else 16801da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPS_SIZE 16811da177e4SLinus Torvalds * CONFIG_RBPS_BUFSIZE, he_dev->rbps_pages, he_dev->rbps_pages_phys); 16821da177e4SLinus Torvalds #endif 16831da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBPS_SIZE 16841da177e4SLinus Torvalds * sizeof(struct he_rbp), he_dev->rbps_base, he_dev->rbps_phys); 16851da177e4SLinus Torvalds } 16861da177e4SLinus Torvalds 16871da177e4SLinus Torvalds #ifdef USE_RBPS_POOL 16881da177e4SLinus Torvalds if (he_dev->rbps_pool) 16891da177e4SLinus Torvalds pci_pool_destroy(he_dev->rbps_pool); 16901da177e4SLinus Torvalds #endif 16911da177e4SLinus Torvalds 16921da177e4SLinus Torvalds #endif /* USE_RBPS */ 16931da177e4SLinus Torvalds 16941da177e4SLinus Torvalds if (he_dev->rbrq_base) 16951da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_RBRQ_SIZE * sizeof(struct he_rbrq), 16961da177e4SLinus Torvalds he_dev->rbrq_base, he_dev->rbrq_phys); 16971da177e4SLinus Torvalds 16981da177e4SLinus Torvalds if (he_dev->tbrq_base) 16991da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq), 17001da177e4SLinus Torvalds he_dev->tbrq_base, he_dev->tbrq_phys); 17011da177e4SLinus Torvalds 17021da177e4SLinus Torvalds if (he_dev->tpdrq_base) 17031da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_TBRQ_SIZE * sizeof(struct he_tbrq), 17041da177e4SLinus Torvalds he_dev->tpdrq_base, he_dev->tpdrq_phys); 17051da177e4SLinus Torvalds 17061da177e4SLinus Torvalds #ifdef USE_TPD_POOL 17071da177e4SLinus Torvalds if (he_dev->tpd_pool) 17081da177e4SLinus Torvalds pci_pool_destroy(he_dev->tpd_pool); 17091da177e4SLinus Torvalds #else 17101da177e4SLinus Torvalds if (he_dev->tpd_base) 17111da177e4SLinus Torvalds pci_free_consistent(he_dev->pci_dev, CONFIG_NUMTPDS * sizeof(struct he_tpd), 17121da177e4SLinus Torvalds he_dev->tpd_base, he_dev->tpd_base_phys); 17131da177e4SLinus Torvalds #endif 17141da177e4SLinus Torvalds 17151da177e4SLinus Torvalds if (he_dev->pci_dev) { 17161da177e4SLinus Torvalds pci_read_config_word(he_dev->pci_dev, PCI_COMMAND, &command); 17171da177e4SLinus Torvalds command &= ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); 17181da177e4SLinus Torvalds pci_write_config_word(he_dev->pci_dev, PCI_COMMAND, command); 17191da177e4SLinus Torvalds } 17201da177e4SLinus Torvalds 17211da177e4SLinus Torvalds if (he_dev->membase) 17221da177e4SLinus Torvalds iounmap(he_dev->membase); 17231da177e4SLinus Torvalds } 17241da177e4SLinus Torvalds 17251da177e4SLinus Torvalds static struct he_tpd * 17261da177e4SLinus Torvalds __alloc_tpd(struct he_dev *he_dev) 17271da177e4SLinus Torvalds { 17281da177e4SLinus Torvalds #ifdef USE_TPD_POOL 17291da177e4SLinus Torvalds struct he_tpd *tpd; 17301da177e4SLinus Torvalds dma_addr_t dma_handle; 17311da177e4SLinus Torvalds 17321da177e4SLinus Torvalds tpd = pci_pool_alloc(he_dev->tpd_pool, SLAB_ATOMIC|SLAB_DMA, &dma_handle); 17331da177e4SLinus Torvalds if (tpd == NULL) 17341da177e4SLinus Torvalds return NULL; 17351da177e4SLinus Torvalds 17361da177e4SLinus Torvalds tpd->status = TPD_ADDR(dma_handle); 17371da177e4SLinus Torvalds tpd->reserved = 0; 17381da177e4SLinus Torvalds tpd->iovec[0].addr = 0; tpd->iovec[0].len = 0; 17391da177e4SLinus Torvalds tpd->iovec[1].addr = 0; tpd->iovec[1].len = 0; 17401da177e4SLinus Torvalds tpd->iovec[2].addr = 0; tpd->iovec[2].len = 0; 17411da177e4SLinus Torvalds 17421da177e4SLinus Torvalds return tpd; 17431da177e4SLinus Torvalds #else 17441da177e4SLinus Torvalds int i; 17451da177e4SLinus Torvalds 17461da177e4SLinus Torvalds for (i = 0; i < CONFIG_NUMTPDS; ++i) { 17471da177e4SLinus Torvalds ++he_dev->tpd_head; 17481da177e4SLinus Torvalds if (he_dev->tpd_head > he_dev->tpd_end) { 17491da177e4SLinus Torvalds he_dev->tpd_head = he_dev->tpd_base; 17501da177e4SLinus Torvalds } 17511da177e4SLinus Torvalds 17521da177e4SLinus Torvalds if (!he_dev->tpd_head->inuse) { 17531da177e4SLinus Torvalds he_dev->tpd_head->inuse = 1; 17541da177e4SLinus Torvalds he_dev->tpd_head->status &= TPD_MASK; 17551da177e4SLinus Torvalds he_dev->tpd_head->iovec[0].addr = 0; he_dev->tpd_head->iovec[0].len = 0; 17561da177e4SLinus Torvalds he_dev->tpd_head->iovec[1].addr = 0; he_dev->tpd_head->iovec[1].len = 0; 17571da177e4SLinus Torvalds he_dev->tpd_head->iovec[2].addr = 0; he_dev->tpd_head->iovec[2].len = 0; 17581da177e4SLinus Torvalds return he_dev->tpd_head; 17591da177e4SLinus Torvalds } 17601da177e4SLinus Torvalds } 17611da177e4SLinus Torvalds hprintk("out of tpds -- increase CONFIG_NUMTPDS (%d)\n", CONFIG_NUMTPDS); 17621da177e4SLinus Torvalds return NULL; 17631da177e4SLinus Torvalds #endif 17641da177e4SLinus Torvalds } 17651da177e4SLinus Torvalds 17661da177e4SLinus Torvalds #define AAL5_LEN(buf,len) \ 17671da177e4SLinus Torvalds ((((unsigned char *)(buf))[(len)-6] << 8) | \ 17681da177e4SLinus Torvalds (((unsigned char *)(buf))[(len)-5])) 17691da177e4SLinus Torvalds 17701da177e4SLinus Torvalds /* 2.10.1.2 receive 17711da177e4SLinus Torvalds * 17721da177e4SLinus Torvalds * aal5 packets can optionally return the tcp checksum in the lower 17731da177e4SLinus Torvalds * 16 bits of the crc (RSR0_TCP_CKSUM) 17741da177e4SLinus Torvalds */ 17751da177e4SLinus Torvalds 17761da177e4SLinus Torvalds #define TCP_CKSUM(buf,len) \ 17771da177e4SLinus Torvalds ((((unsigned char *)(buf))[(len)-2] << 8) | \ 17781da177e4SLinus Torvalds (((unsigned char *)(buf))[(len-1)])) 17791da177e4SLinus Torvalds 17801da177e4SLinus Torvalds static int 17811da177e4SLinus Torvalds he_service_rbrq(struct he_dev *he_dev, int group) 17821da177e4SLinus Torvalds { 17831da177e4SLinus Torvalds struct he_rbrq *rbrq_tail = (struct he_rbrq *) 17841da177e4SLinus Torvalds ((unsigned long)he_dev->rbrq_base | 17851da177e4SLinus Torvalds he_dev->hsp->group[group].rbrq_tail); 17861da177e4SLinus Torvalds struct he_rbp *rbp = NULL; 17871da177e4SLinus Torvalds unsigned cid, lastcid = -1; 17881da177e4SLinus Torvalds unsigned buf_len = 0; 17891da177e4SLinus Torvalds struct sk_buff *skb; 17901da177e4SLinus Torvalds struct atm_vcc *vcc = NULL; 17911da177e4SLinus Torvalds struct he_vcc *he_vcc; 17921da177e4SLinus Torvalds struct he_iovec *iov; 17931da177e4SLinus Torvalds int pdus_assembled = 0; 17941da177e4SLinus Torvalds int updated = 0; 17951da177e4SLinus Torvalds 17961da177e4SLinus Torvalds read_lock(&vcc_sklist_lock); 17971da177e4SLinus Torvalds while (he_dev->rbrq_head != rbrq_tail) { 17981da177e4SLinus Torvalds ++updated; 17991da177e4SLinus Torvalds 18001da177e4SLinus Torvalds HPRINTK("%p rbrq%d 0x%x len=%d cid=0x%x %s%s%s%s%s%s\n", 18011da177e4SLinus Torvalds he_dev->rbrq_head, group, 18021da177e4SLinus Torvalds RBRQ_ADDR(he_dev->rbrq_head), 18031da177e4SLinus Torvalds RBRQ_BUFLEN(he_dev->rbrq_head), 18041da177e4SLinus Torvalds RBRQ_CID(he_dev->rbrq_head), 18051da177e4SLinus Torvalds RBRQ_CRC_ERR(he_dev->rbrq_head) ? " CRC_ERR" : "", 18061da177e4SLinus Torvalds RBRQ_LEN_ERR(he_dev->rbrq_head) ? " LEN_ERR" : "", 18071da177e4SLinus Torvalds RBRQ_END_PDU(he_dev->rbrq_head) ? " END_PDU" : "", 18081da177e4SLinus Torvalds RBRQ_AAL5_PROT(he_dev->rbrq_head) ? " AAL5_PROT" : "", 18091da177e4SLinus Torvalds RBRQ_CON_CLOSED(he_dev->rbrq_head) ? " CON_CLOSED" : "", 18101da177e4SLinus Torvalds RBRQ_HBUF_ERR(he_dev->rbrq_head) ? " HBUF_ERR" : ""); 18111da177e4SLinus Torvalds 18121da177e4SLinus Torvalds #ifdef USE_RBPS 18131da177e4SLinus Torvalds if (RBRQ_ADDR(he_dev->rbrq_head) & RBP_SMALLBUF) 18141da177e4SLinus Torvalds rbp = &he_dev->rbps_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))]; 18151da177e4SLinus Torvalds else 18161da177e4SLinus Torvalds #endif 18171da177e4SLinus Torvalds rbp = &he_dev->rbpl_base[RBP_INDEX(RBRQ_ADDR(he_dev->rbrq_head))]; 18181da177e4SLinus Torvalds 18191da177e4SLinus Torvalds buf_len = RBRQ_BUFLEN(he_dev->rbrq_head) * 4; 18201da177e4SLinus Torvalds cid = RBRQ_CID(he_dev->rbrq_head); 18211da177e4SLinus Torvalds 18221da177e4SLinus Torvalds if (cid != lastcid) 18231da177e4SLinus Torvalds vcc = __find_vcc(he_dev, cid); 18241da177e4SLinus Torvalds lastcid = cid; 18251da177e4SLinus Torvalds 18261da177e4SLinus Torvalds if (vcc == NULL) { 18271da177e4SLinus Torvalds hprintk("vcc == NULL (cid 0x%x)\n", cid); 18281da177e4SLinus Torvalds if (!RBRQ_HBUF_ERR(he_dev->rbrq_head)) 18291da177e4SLinus Torvalds rbp->status &= ~RBP_LOANED; 18301da177e4SLinus Torvalds 18311da177e4SLinus Torvalds goto next_rbrq_entry; 18321da177e4SLinus Torvalds } 18331da177e4SLinus Torvalds 18341da177e4SLinus Torvalds he_vcc = HE_VCC(vcc); 18351da177e4SLinus Torvalds if (he_vcc == NULL) { 18361da177e4SLinus Torvalds hprintk("he_vcc == NULL (cid 0x%x)\n", cid); 18371da177e4SLinus Torvalds if (!RBRQ_HBUF_ERR(he_dev->rbrq_head)) 18381da177e4SLinus Torvalds rbp->status &= ~RBP_LOANED; 18391da177e4SLinus Torvalds goto next_rbrq_entry; 18401da177e4SLinus Torvalds } 18411da177e4SLinus Torvalds 18421da177e4SLinus Torvalds if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) { 18431da177e4SLinus Torvalds hprintk("HBUF_ERR! (cid 0x%x)\n", cid); 18441da177e4SLinus Torvalds atomic_inc(&vcc->stats->rx_drop); 18451da177e4SLinus Torvalds goto return_host_buffers; 18461da177e4SLinus Torvalds } 18471da177e4SLinus Torvalds 18481da177e4SLinus Torvalds he_vcc->iov_tail->iov_base = RBRQ_ADDR(he_dev->rbrq_head); 18491da177e4SLinus Torvalds he_vcc->iov_tail->iov_len = buf_len; 18501da177e4SLinus Torvalds he_vcc->pdu_len += buf_len; 18511da177e4SLinus Torvalds ++he_vcc->iov_tail; 18521da177e4SLinus Torvalds 18531da177e4SLinus Torvalds if (RBRQ_CON_CLOSED(he_dev->rbrq_head)) { 18541da177e4SLinus Torvalds lastcid = -1; 18551da177e4SLinus Torvalds HPRINTK("wake_up rx_waitq (cid 0x%x)\n", cid); 18561da177e4SLinus Torvalds wake_up(&he_vcc->rx_waitq); 18571da177e4SLinus Torvalds goto return_host_buffers; 18581da177e4SLinus Torvalds } 18591da177e4SLinus Torvalds 18601da177e4SLinus Torvalds #ifdef notdef 18611da177e4SLinus Torvalds if ((he_vcc->iov_tail - he_vcc->iov_head) > HE_MAXIOV) { 18621da177e4SLinus Torvalds hprintk("iovec full! cid 0x%x\n", cid); 18631da177e4SLinus Torvalds goto return_host_buffers; 18641da177e4SLinus Torvalds } 18651da177e4SLinus Torvalds #endif 18661da177e4SLinus Torvalds if (!RBRQ_END_PDU(he_dev->rbrq_head)) 18671da177e4SLinus Torvalds goto next_rbrq_entry; 18681da177e4SLinus Torvalds 18691da177e4SLinus Torvalds if (RBRQ_LEN_ERR(he_dev->rbrq_head) 18701da177e4SLinus Torvalds || RBRQ_CRC_ERR(he_dev->rbrq_head)) { 18711da177e4SLinus Torvalds HPRINTK("%s%s (%d.%d)\n", 18721da177e4SLinus Torvalds RBRQ_CRC_ERR(he_dev->rbrq_head) 18731da177e4SLinus Torvalds ? "CRC_ERR " : "", 18741da177e4SLinus Torvalds RBRQ_LEN_ERR(he_dev->rbrq_head) 18751da177e4SLinus Torvalds ? "LEN_ERR" : "", 18761da177e4SLinus Torvalds vcc->vpi, vcc->vci); 18771da177e4SLinus Torvalds atomic_inc(&vcc->stats->rx_err); 18781da177e4SLinus Torvalds goto return_host_buffers; 18791da177e4SLinus Torvalds } 18801da177e4SLinus Torvalds 18811da177e4SLinus Torvalds skb = atm_alloc_charge(vcc, he_vcc->pdu_len + rx_skb_reserve, 18821da177e4SLinus Torvalds GFP_ATOMIC); 18831da177e4SLinus Torvalds if (!skb) { 18841da177e4SLinus Torvalds HPRINTK("charge failed (%d.%d)\n", vcc->vpi, vcc->vci); 18851da177e4SLinus Torvalds goto return_host_buffers; 18861da177e4SLinus Torvalds } 18871da177e4SLinus Torvalds 18881da177e4SLinus Torvalds if (rx_skb_reserve > 0) 18891da177e4SLinus Torvalds skb_reserve(skb, rx_skb_reserve); 18901da177e4SLinus Torvalds 18911da177e4SLinus Torvalds do_gettimeofday(&skb->stamp); 18921da177e4SLinus Torvalds 18931da177e4SLinus Torvalds for (iov = he_vcc->iov_head; 18941da177e4SLinus Torvalds iov < he_vcc->iov_tail; ++iov) { 18951da177e4SLinus Torvalds #ifdef USE_RBPS 18961da177e4SLinus Torvalds if (iov->iov_base & RBP_SMALLBUF) 18971da177e4SLinus Torvalds memcpy(skb_put(skb, iov->iov_len), 18981da177e4SLinus Torvalds he_dev->rbps_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len); 18991da177e4SLinus Torvalds else 19001da177e4SLinus Torvalds #endif 19011da177e4SLinus Torvalds memcpy(skb_put(skb, iov->iov_len), 19021da177e4SLinus Torvalds he_dev->rbpl_virt[RBP_INDEX(iov->iov_base)].virt, iov->iov_len); 19031da177e4SLinus Torvalds } 19041da177e4SLinus Torvalds 19051da177e4SLinus Torvalds switch (vcc->qos.aal) { 19061da177e4SLinus Torvalds case ATM_AAL0: 19071da177e4SLinus Torvalds /* 2.10.1.5 raw cell receive */ 19081da177e4SLinus Torvalds skb->len = ATM_AAL0_SDU; 19091da177e4SLinus Torvalds skb->tail = skb->data + skb->len; 19101da177e4SLinus Torvalds break; 19111da177e4SLinus Torvalds case ATM_AAL5: 19121da177e4SLinus Torvalds /* 2.10.1.2 aal5 receive */ 19131da177e4SLinus Torvalds 19141da177e4SLinus Torvalds skb->len = AAL5_LEN(skb->data, he_vcc->pdu_len); 19151da177e4SLinus Torvalds skb->tail = skb->data + skb->len; 19161da177e4SLinus Torvalds #ifdef USE_CHECKSUM_HW 19171da177e4SLinus Torvalds if (vcc->vpi == 0 && vcc->vci >= ATM_NOT_RSV_VCI) { 19181da177e4SLinus Torvalds skb->ip_summed = CHECKSUM_HW; 19191da177e4SLinus Torvalds skb->csum = TCP_CKSUM(skb->data, 19201da177e4SLinus Torvalds he_vcc->pdu_len); 19211da177e4SLinus Torvalds } 19221da177e4SLinus Torvalds #endif 19231da177e4SLinus Torvalds break; 19241da177e4SLinus Torvalds } 19251da177e4SLinus Torvalds 19261da177e4SLinus Torvalds #ifdef should_never_happen 19271da177e4SLinus Torvalds if (skb->len > vcc->qos.rxtp.max_sdu) 19281da177e4SLinus Torvalds hprintk("pdu_len (%d) > vcc->qos.rxtp.max_sdu (%d)! cid 0x%x\n", skb->len, vcc->qos.rxtp.max_sdu, cid); 19291da177e4SLinus Torvalds #endif 19301da177e4SLinus Torvalds 19311da177e4SLinus Torvalds #ifdef notdef 19321da177e4SLinus Torvalds ATM_SKB(skb)->vcc = vcc; 19331da177e4SLinus Torvalds #endif 19341da177e4SLinus Torvalds vcc->push(vcc, skb); 19351da177e4SLinus Torvalds 19361da177e4SLinus Torvalds atomic_inc(&vcc->stats->rx); 19371da177e4SLinus Torvalds 19381da177e4SLinus Torvalds return_host_buffers: 19391da177e4SLinus Torvalds ++pdus_assembled; 19401da177e4SLinus Torvalds 19411da177e4SLinus Torvalds for (iov = he_vcc->iov_head; 19421da177e4SLinus Torvalds iov < he_vcc->iov_tail; ++iov) { 19431da177e4SLinus Torvalds #ifdef USE_RBPS 19441da177e4SLinus Torvalds if (iov->iov_base & RBP_SMALLBUF) 19451da177e4SLinus Torvalds rbp = &he_dev->rbps_base[RBP_INDEX(iov->iov_base)]; 19461da177e4SLinus Torvalds else 19471da177e4SLinus Torvalds #endif 19481da177e4SLinus Torvalds rbp = &he_dev->rbpl_base[RBP_INDEX(iov->iov_base)]; 19491da177e4SLinus Torvalds 19501da177e4SLinus Torvalds rbp->status &= ~RBP_LOANED; 19511da177e4SLinus Torvalds } 19521da177e4SLinus Torvalds 19531da177e4SLinus Torvalds he_vcc->iov_tail = he_vcc->iov_head; 19541da177e4SLinus Torvalds he_vcc->pdu_len = 0; 19551da177e4SLinus Torvalds 19561da177e4SLinus Torvalds next_rbrq_entry: 19571da177e4SLinus Torvalds he_dev->rbrq_head = (struct he_rbrq *) 19581da177e4SLinus Torvalds ((unsigned long) he_dev->rbrq_base | 19591da177e4SLinus Torvalds RBRQ_MASK(++he_dev->rbrq_head)); 19601da177e4SLinus Torvalds 19611da177e4SLinus Torvalds } 19621da177e4SLinus Torvalds read_unlock(&vcc_sklist_lock); 19631da177e4SLinus Torvalds 19641da177e4SLinus Torvalds if (updated) { 19651da177e4SLinus Torvalds if (updated > he_dev->rbrq_peak) 19661da177e4SLinus Torvalds he_dev->rbrq_peak = updated; 19671da177e4SLinus Torvalds 19681da177e4SLinus Torvalds he_writel(he_dev, RBRQ_MASK(he_dev->rbrq_head), 19691da177e4SLinus Torvalds G0_RBRQ_H + (group * 16)); 19701da177e4SLinus Torvalds } 19711da177e4SLinus Torvalds 19721da177e4SLinus Torvalds return pdus_assembled; 19731da177e4SLinus Torvalds } 19741da177e4SLinus Torvalds 19751da177e4SLinus Torvalds static void 19761da177e4SLinus Torvalds he_service_tbrq(struct he_dev *he_dev, int group) 19771da177e4SLinus Torvalds { 19781da177e4SLinus Torvalds struct he_tbrq *tbrq_tail = (struct he_tbrq *) 19791da177e4SLinus Torvalds ((unsigned long)he_dev->tbrq_base | 19801da177e4SLinus Torvalds he_dev->hsp->group[group].tbrq_tail); 19811da177e4SLinus Torvalds struct he_tpd *tpd; 19821da177e4SLinus Torvalds int slot, updated = 0; 19831da177e4SLinus Torvalds #ifdef USE_TPD_POOL 19841da177e4SLinus Torvalds struct he_tpd *__tpd; 19851da177e4SLinus Torvalds #endif 19861da177e4SLinus Torvalds 19871da177e4SLinus Torvalds /* 2.1.6 transmit buffer return queue */ 19881da177e4SLinus Torvalds 19891da177e4SLinus Torvalds while (he_dev->tbrq_head != tbrq_tail) { 19901da177e4SLinus Torvalds ++updated; 19911da177e4SLinus Torvalds 19921da177e4SLinus Torvalds HPRINTK("tbrq%d 0x%x%s%s\n", 19931da177e4SLinus Torvalds group, 19941da177e4SLinus Torvalds TBRQ_TPD(he_dev->tbrq_head), 19951da177e4SLinus Torvalds TBRQ_EOS(he_dev->tbrq_head) ? " EOS" : "", 19961da177e4SLinus Torvalds TBRQ_MULTIPLE(he_dev->tbrq_head) ? " MULTIPLE" : ""); 19971da177e4SLinus Torvalds #ifdef USE_TPD_POOL 19981da177e4SLinus Torvalds tpd = NULL; 19991da177e4SLinus Torvalds list_for_each_entry(__tpd, &he_dev->outstanding_tpds, entry) { 20001da177e4SLinus Torvalds if (TPD_ADDR(__tpd->status) == TBRQ_TPD(he_dev->tbrq_head)) { 20011da177e4SLinus Torvalds tpd = __tpd; 20021da177e4SLinus Torvalds list_del(&__tpd->entry); 20031da177e4SLinus Torvalds break; 20041da177e4SLinus Torvalds } 20051da177e4SLinus Torvalds } 20061da177e4SLinus Torvalds 20071da177e4SLinus Torvalds if (tpd == NULL) { 20081da177e4SLinus Torvalds hprintk("unable to locate tpd for dma buffer %x\n", 20091da177e4SLinus Torvalds TBRQ_TPD(he_dev->tbrq_head)); 20101da177e4SLinus Torvalds goto next_tbrq_entry; 20111da177e4SLinus Torvalds } 20121da177e4SLinus Torvalds #else 20131da177e4SLinus Torvalds tpd = &he_dev->tpd_base[ TPD_INDEX(TBRQ_TPD(he_dev->tbrq_head)) ]; 20141da177e4SLinus Torvalds #endif 20151da177e4SLinus Torvalds 20161da177e4SLinus Torvalds if (TBRQ_EOS(he_dev->tbrq_head)) { 20171da177e4SLinus Torvalds HPRINTK("wake_up(tx_waitq) cid 0x%x\n", 20181da177e4SLinus Torvalds he_mkcid(he_dev, tpd->vcc->vpi, tpd->vcc->vci)); 20191da177e4SLinus Torvalds if (tpd->vcc) 20201da177e4SLinus Torvalds wake_up(&HE_VCC(tpd->vcc)->tx_waitq); 20211da177e4SLinus Torvalds 20221da177e4SLinus Torvalds goto next_tbrq_entry; 20231da177e4SLinus Torvalds } 20241da177e4SLinus Torvalds 20251da177e4SLinus Torvalds for (slot = 0; slot < TPD_MAXIOV; ++slot) { 20261da177e4SLinus Torvalds if (tpd->iovec[slot].addr) 20271da177e4SLinus Torvalds pci_unmap_single(he_dev->pci_dev, 20281da177e4SLinus Torvalds tpd->iovec[slot].addr, 20291da177e4SLinus Torvalds tpd->iovec[slot].len & TPD_LEN_MASK, 20301da177e4SLinus Torvalds PCI_DMA_TODEVICE); 20311da177e4SLinus Torvalds if (tpd->iovec[slot].len & TPD_LST) 20321da177e4SLinus Torvalds break; 20331da177e4SLinus Torvalds 20341da177e4SLinus Torvalds } 20351da177e4SLinus Torvalds 20361da177e4SLinus Torvalds if (tpd->skb) { /* && !TBRQ_MULTIPLE(he_dev->tbrq_head) */ 20371da177e4SLinus Torvalds if (tpd->vcc && tpd->vcc->pop) 20381da177e4SLinus Torvalds tpd->vcc->pop(tpd->vcc, tpd->skb); 20391da177e4SLinus Torvalds else 20401da177e4SLinus Torvalds dev_kfree_skb_any(tpd->skb); 20411da177e4SLinus Torvalds } 20421da177e4SLinus Torvalds 20431da177e4SLinus Torvalds next_tbrq_entry: 20441da177e4SLinus Torvalds #ifdef USE_TPD_POOL 20451da177e4SLinus Torvalds if (tpd) 20461da177e4SLinus Torvalds pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); 20471da177e4SLinus Torvalds #else 20481da177e4SLinus Torvalds tpd->inuse = 0; 20491da177e4SLinus Torvalds #endif 20501da177e4SLinus Torvalds he_dev->tbrq_head = (struct he_tbrq *) 20511da177e4SLinus Torvalds ((unsigned long) he_dev->tbrq_base | 20521da177e4SLinus Torvalds TBRQ_MASK(++he_dev->tbrq_head)); 20531da177e4SLinus Torvalds } 20541da177e4SLinus Torvalds 20551da177e4SLinus Torvalds if (updated) { 20561da177e4SLinus Torvalds if (updated > he_dev->tbrq_peak) 20571da177e4SLinus Torvalds he_dev->tbrq_peak = updated; 20581da177e4SLinus Torvalds 20591da177e4SLinus Torvalds he_writel(he_dev, TBRQ_MASK(he_dev->tbrq_head), 20601da177e4SLinus Torvalds G0_TBRQ_H + (group * 16)); 20611da177e4SLinus Torvalds } 20621da177e4SLinus Torvalds } 20631da177e4SLinus Torvalds 20641da177e4SLinus Torvalds 20651da177e4SLinus Torvalds static void 20661da177e4SLinus Torvalds he_service_rbpl(struct he_dev *he_dev, int group) 20671da177e4SLinus Torvalds { 20681da177e4SLinus Torvalds struct he_rbp *newtail; 20691da177e4SLinus Torvalds struct he_rbp *rbpl_head; 20701da177e4SLinus Torvalds int moved = 0; 20711da177e4SLinus Torvalds 20721da177e4SLinus Torvalds rbpl_head = (struct he_rbp *) ((unsigned long)he_dev->rbpl_base | 20731da177e4SLinus Torvalds RBPL_MASK(he_readl(he_dev, G0_RBPL_S))); 20741da177e4SLinus Torvalds 20751da177e4SLinus Torvalds for (;;) { 20761da177e4SLinus Torvalds newtail = (struct he_rbp *) ((unsigned long)he_dev->rbpl_base | 20771da177e4SLinus Torvalds RBPL_MASK(he_dev->rbpl_tail+1)); 20781da177e4SLinus Torvalds 20791da177e4SLinus Torvalds /* table 3.42 -- rbpl_tail should never be set to rbpl_head */ 20801da177e4SLinus Torvalds if ((newtail == rbpl_head) || (newtail->status & RBP_LOANED)) 20811da177e4SLinus Torvalds break; 20821da177e4SLinus Torvalds 20831da177e4SLinus Torvalds newtail->status |= RBP_LOANED; 20841da177e4SLinus Torvalds he_dev->rbpl_tail = newtail; 20851da177e4SLinus Torvalds ++moved; 20861da177e4SLinus Torvalds } 20871da177e4SLinus Torvalds 20881da177e4SLinus Torvalds if (moved) 20891da177e4SLinus Torvalds he_writel(he_dev, RBPL_MASK(he_dev->rbpl_tail), G0_RBPL_T); 20901da177e4SLinus Torvalds } 20911da177e4SLinus Torvalds 20921da177e4SLinus Torvalds #ifdef USE_RBPS 20931da177e4SLinus Torvalds static void 20941da177e4SLinus Torvalds he_service_rbps(struct he_dev *he_dev, int group) 20951da177e4SLinus Torvalds { 20961da177e4SLinus Torvalds struct he_rbp *newtail; 20971da177e4SLinus Torvalds struct he_rbp *rbps_head; 20981da177e4SLinus Torvalds int moved = 0; 20991da177e4SLinus Torvalds 21001da177e4SLinus Torvalds rbps_head = (struct he_rbp *) ((unsigned long)he_dev->rbps_base | 21011da177e4SLinus Torvalds RBPS_MASK(he_readl(he_dev, G0_RBPS_S))); 21021da177e4SLinus Torvalds 21031da177e4SLinus Torvalds for (;;) { 21041da177e4SLinus Torvalds newtail = (struct he_rbp *) ((unsigned long)he_dev->rbps_base | 21051da177e4SLinus Torvalds RBPS_MASK(he_dev->rbps_tail+1)); 21061da177e4SLinus Torvalds 21071da177e4SLinus Torvalds /* table 3.42 -- rbps_tail should never be set to rbps_head */ 21081da177e4SLinus Torvalds if ((newtail == rbps_head) || (newtail->status & RBP_LOANED)) 21091da177e4SLinus Torvalds break; 21101da177e4SLinus Torvalds 21111da177e4SLinus Torvalds newtail->status |= RBP_LOANED; 21121da177e4SLinus Torvalds he_dev->rbps_tail = newtail; 21131da177e4SLinus Torvalds ++moved; 21141da177e4SLinus Torvalds } 21151da177e4SLinus Torvalds 21161da177e4SLinus Torvalds if (moved) 21171da177e4SLinus Torvalds he_writel(he_dev, RBPS_MASK(he_dev->rbps_tail), G0_RBPS_T); 21181da177e4SLinus Torvalds } 21191da177e4SLinus Torvalds #endif /* USE_RBPS */ 21201da177e4SLinus Torvalds 21211da177e4SLinus Torvalds static void 21221da177e4SLinus Torvalds he_tasklet(unsigned long data) 21231da177e4SLinus Torvalds { 21241da177e4SLinus Torvalds unsigned long flags; 21251da177e4SLinus Torvalds struct he_dev *he_dev = (struct he_dev *) data; 21261da177e4SLinus Torvalds int group, type; 21271da177e4SLinus Torvalds int updated = 0; 21281da177e4SLinus Torvalds 21291da177e4SLinus Torvalds HPRINTK("tasklet (0x%lx)\n", data); 21301da177e4SLinus Torvalds #ifdef USE_TASKLET 21311da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 21321da177e4SLinus Torvalds #endif 21331da177e4SLinus Torvalds 21341da177e4SLinus Torvalds while (he_dev->irq_head != he_dev->irq_tail) { 21351da177e4SLinus Torvalds ++updated; 21361da177e4SLinus Torvalds 21371da177e4SLinus Torvalds type = ITYPE_TYPE(he_dev->irq_head->isw); 21381da177e4SLinus Torvalds group = ITYPE_GROUP(he_dev->irq_head->isw); 21391da177e4SLinus Torvalds 21401da177e4SLinus Torvalds switch (type) { 21411da177e4SLinus Torvalds case ITYPE_RBRQ_THRESH: 21421da177e4SLinus Torvalds HPRINTK("rbrq%d threshold\n", group); 21431da177e4SLinus Torvalds /* fall through */ 21441da177e4SLinus Torvalds case ITYPE_RBRQ_TIMER: 21451da177e4SLinus Torvalds if (he_service_rbrq(he_dev, group)) { 21461da177e4SLinus Torvalds he_service_rbpl(he_dev, group); 21471da177e4SLinus Torvalds #ifdef USE_RBPS 21481da177e4SLinus Torvalds he_service_rbps(he_dev, group); 21491da177e4SLinus Torvalds #endif /* USE_RBPS */ 21501da177e4SLinus Torvalds } 21511da177e4SLinus Torvalds break; 21521da177e4SLinus Torvalds case ITYPE_TBRQ_THRESH: 21531da177e4SLinus Torvalds HPRINTK("tbrq%d threshold\n", group); 21541da177e4SLinus Torvalds /* fall through */ 21551da177e4SLinus Torvalds case ITYPE_TPD_COMPLETE: 21561da177e4SLinus Torvalds he_service_tbrq(he_dev, group); 21571da177e4SLinus Torvalds break; 21581da177e4SLinus Torvalds case ITYPE_RBPL_THRESH: 21591da177e4SLinus Torvalds he_service_rbpl(he_dev, group); 21601da177e4SLinus Torvalds break; 21611da177e4SLinus Torvalds case ITYPE_RBPS_THRESH: 21621da177e4SLinus Torvalds #ifdef USE_RBPS 21631da177e4SLinus Torvalds he_service_rbps(he_dev, group); 21641da177e4SLinus Torvalds #endif /* USE_RBPS */ 21651da177e4SLinus Torvalds break; 21661da177e4SLinus Torvalds case ITYPE_PHY: 21671da177e4SLinus Torvalds HPRINTK("phy interrupt\n"); 21681da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 21691da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 21701da177e4SLinus Torvalds if (he_dev->atm_dev->phy && he_dev->atm_dev->phy->interrupt) 21711da177e4SLinus Torvalds he_dev->atm_dev->phy->interrupt(he_dev->atm_dev); 21721da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 21731da177e4SLinus Torvalds #endif 21741da177e4SLinus Torvalds break; 21751da177e4SLinus Torvalds case ITYPE_OTHER: 21761da177e4SLinus Torvalds switch (type|group) { 21771da177e4SLinus Torvalds case ITYPE_PARITY: 21781da177e4SLinus Torvalds hprintk("parity error\n"); 21791da177e4SLinus Torvalds break; 21801da177e4SLinus Torvalds case ITYPE_ABORT: 21811da177e4SLinus Torvalds hprintk("abort 0x%x\n", he_readl(he_dev, ABORT_ADDR)); 21821da177e4SLinus Torvalds break; 21831da177e4SLinus Torvalds } 21841da177e4SLinus Torvalds break; 21851da177e4SLinus Torvalds case ITYPE_TYPE(ITYPE_INVALID): 21861da177e4SLinus Torvalds /* see 8.1.1 -- check all queues */ 21871da177e4SLinus Torvalds 21881da177e4SLinus Torvalds HPRINTK("isw not updated 0x%x\n", he_dev->irq_head->isw); 21891da177e4SLinus Torvalds 21901da177e4SLinus Torvalds he_service_rbrq(he_dev, 0); 21911da177e4SLinus Torvalds he_service_rbpl(he_dev, 0); 21921da177e4SLinus Torvalds #ifdef USE_RBPS 21931da177e4SLinus Torvalds he_service_rbps(he_dev, 0); 21941da177e4SLinus Torvalds #endif /* USE_RBPS */ 21951da177e4SLinus Torvalds he_service_tbrq(he_dev, 0); 21961da177e4SLinus Torvalds break; 21971da177e4SLinus Torvalds default: 21981da177e4SLinus Torvalds hprintk("bad isw 0x%x?\n", he_dev->irq_head->isw); 21991da177e4SLinus Torvalds } 22001da177e4SLinus Torvalds 22011da177e4SLinus Torvalds he_dev->irq_head->isw = ITYPE_INVALID; 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds he_dev->irq_head = (struct he_irq *) NEXT_ENTRY(he_dev->irq_base, he_dev->irq_head, IRQ_MASK); 22041da177e4SLinus Torvalds } 22051da177e4SLinus Torvalds 22061da177e4SLinus Torvalds if (updated) { 22071da177e4SLinus Torvalds if (updated > he_dev->irq_peak) 22081da177e4SLinus Torvalds he_dev->irq_peak = updated; 22091da177e4SLinus Torvalds 22101da177e4SLinus Torvalds he_writel(he_dev, 22111da177e4SLinus Torvalds IRQ_SIZE(CONFIG_IRQ_SIZE) | 22121da177e4SLinus Torvalds IRQ_THRESH(CONFIG_IRQ_THRESH) | 22131da177e4SLinus Torvalds IRQ_TAIL(he_dev->irq_tail), IRQ0_HEAD); 22141da177e4SLinus Torvalds (void) he_readl(he_dev, INT_FIFO); /* 8.1.2 controller errata; flush posted writes */ 22151da177e4SLinus Torvalds } 22161da177e4SLinus Torvalds #ifdef USE_TASKLET 22171da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 22181da177e4SLinus Torvalds #endif 22191da177e4SLinus Torvalds } 22201da177e4SLinus Torvalds 22211da177e4SLinus Torvalds static irqreturn_t 22221da177e4SLinus Torvalds he_irq_handler(int irq, void *dev_id, struct pt_regs *regs) 22231da177e4SLinus Torvalds { 22241da177e4SLinus Torvalds unsigned long flags; 22251da177e4SLinus Torvalds struct he_dev *he_dev = (struct he_dev * )dev_id; 22261da177e4SLinus Torvalds int handled = 0; 22271da177e4SLinus Torvalds 22281da177e4SLinus Torvalds if (he_dev == NULL) 22291da177e4SLinus Torvalds return IRQ_NONE; 22301da177e4SLinus Torvalds 22311da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds he_dev->irq_tail = (struct he_irq *) (((unsigned long)he_dev->irq_base) | 22341da177e4SLinus Torvalds (*he_dev->irq_tailoffset << 2)); 22351da177e4SLinus Torvalds 22361da177e4SLinus Torvalds if (he_dev->irq_tail == he_dev->irq_head) { 22371da177e4SLinus Torvalds HPRINTK("tailoffset not updated?\n"); 22381da177e4SLinus Torvalds he_dev->irq_tail = (struct he_irq *) ((unsigned long)he_dev->irq_base | 22391da177e4SLinus Torvalds ((he_readl(he_dev, IRQ0_BASE) & IRQ_MASK) << 2)); 22401da177e4SLinus Torvalds (void) he_readl(he_dev, INT_FIFO); /* 8.1.2 controller errata */ 22411da177e4SLinus Torvalds } 22421da177e4SLinus Torvalds 22431da177e4SLinus Torvalds #ifdef DEBUG 22441da177e4SLinus Torvalds if (he_dev->irq_head == he_dev->irq_tail /* && !IRQ_PENDING */) 22451da177e4SLinus Torvalds hprintk("spurious (or shared) interrupt?\n"); 22461da177e4SLinus Torvalds #endif 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds if (he_dev->irq_head != he_dev->irq_tail) { 22491da177e4SLinus Torvalds handled = 1; 22501da177e4SLinus Torvalds #ifdef USE_TASKLET 22511da177e4SLinus Torvalds tasklet_schedule(&he_dev->tasklet); 22521da177e4SLinus Torvalds #else 22531da177e4SLinus Torvalds he_tasklet((unsigned long) he_dev); 22541da177e4SLinus Torvalds #endif 22551da177e4SLinus Torvalds he_writel(he_dev, INT_CLEAR_A, INT_FIFO); /* clear interrupt */ 22561da177e4SLinus Torvalds (void) he_readl(he_dev, INT_FIFO); /* flush posted writes */ 22571da177e4SLinus Torvalds } 22581da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 22591da177e4SLinus Torvalds return IRQ_RETVAL(handled); 22601da177e4SLinus Torvalds 22611da177e4SLinus Torvalds } 22621da177e4SLinus Torvalds 22631da177e4SLinus Torvalds static __inline__ void 22641da177e4SLinus Torvalds __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) 22651da177e4SLinus Torvalds { 22661da177e4SLinus Torvalds struct he_tpdrq *new_tail; 22671da177e4SLinus Torvalds 22681da177e4SLinus Torvalds HPRINTK("tpdrq %p cid 0x%x -> tpdrq_tail %p\n", 22691da177e4SLinus Torvalds tpd, cid, he_dev->tpdrq_tail); 22701da177e4SLinus Torvalds 22711da177e4SLinus Torvalds /* new_tail = he_dev->tpdrq_tail; */ 22721da177e4SLinus Torvalds new_tail = (struct he_tpdrq *) ((unsigned long) he_dev->tpdrq_base | 22731da177e4SLinus Torvalds TPDRQ_MASK(he_dev->tpdrq_tail+1)); 22741da177e4SLinus Torvalds 22751da177e4SLinus Torvalds /* 22761da177e4SLinus Torvalds * check to see if we are about to set the tail == head 22771da177e4SLinus Torvalds * if true, update the head pointer from the adapter 22781da177e4SLinus Torvalds * to see if this is really the case (reading the queue 22791da177e4SLinus Torvalds * head for every enqueue would be unnecessarily slow) 22801da177e4SLinus Torvalds */ 22811da177e4SLinus Torvalds 22821da177e4SLinus Torvalds if (new_tail == he_dev->tpdrq_head) { 22831da177e4SLinus Torvalds he_dev->tpdrq_head = (struct he_tpdrq *) 22841da177e4SLinus Torvalds (((unsigned long)he_dev->tpdrq_base) | 22851da177e4SLinus Torvalds TPDRQ_MASK(he_readl(he_dev, TPDRQ_B_H))); 22861da177e4SLinus Torvalds 22871da177e4SLinus Torvalds if (new_tail == he_dev->tpdrq_head) { 22881da177e4SLinus Torvalds hprintk("tpdrq full (cid 0x%x)\n", cid); 22891da177e4SLinus Torvalds /* 22901da177e4SLinus Torvalds * FIXME 22911da177e4SLinus Torvalds * push tpd onto a transmit backlog queue 22921da177e4SLinus Torvalds * after service_tbrq, service the backlog 22931da177e4SLinus Torvalds * for now, we just drop the pdu 22941da177e4SLinus Torvalds */ 22951da177e4SLinus Torvalds if (tpd->skb) { 22961da177e4SLinus Torvalds if (tpd->vcc->pop) 22971da177e4SLinus Torvalds tpd->vcc->pop(tpd->vcc, tpd->skb); 22981da177e4SLinus Torvalds else 22991da177e4SLinus Torvalds dev_kfree_skb_any(tpd->skb); 23001da177e4SLinus Torvalds atomic_inc(&tpd->vcc->stats->tx_err); 23011da177e4SLinus Torvalds } 23021da177e4SLinus Torvalds #ifdef USE_TPD_POOL 23031da177e4SLinus Torvalds pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); 23041da177e4SLinus Torvalds #else 23051da177e4SLinus Torvalds tpd->inuse = 0; 23061da177e4SLinus Torvalds #endif 23071da177e4SLinus Torvalds return; 23081da177e4SLinus Torvalds } 23091da177e4SLinus Torvalds } 23101da177e4SLinus Torvalds 23111da177e4SLinus Torvalds /* 2.1.5 transmit packet descriptor ready queue */ 23121da177e4SLinus Torvalds #ifdef USE_TPD_POOL 23131da177e4SLinus Torvalds list_add_tail(&tpd->entry, &he_dev->outstanding_tpds); 23141da177e4SLinus Torvalds he_dev->tpdrq_tail->tpd = TPD_ADDR(tpd->status); 23151da177e4SLinus Torvalds #else 23161da177e4SLinus Torvalds he_dev->tpdrq_tail->tpd = he_dev->tpd_base_phys + 23171da177e4SLinus Torvalds (TPD_INDEX(tpd->status) * sizeof(struct he_tpd)); 23181da177e4SLinus Torvalds #endif 23191da177e4SLinus Torvalds he_dev->tpdrq_tail->cid = cid; 23201da177e4SLinus Torvalds wmb(); 23211da177e4SLinus Torvalds 23221da177e4SLinus Torvalds he_dev->tpdrq_tail = new_tail; 23231da177e4SLinus Torvalds 23241da177e4SLinus Torvalds he_writel(he_dev, TPDRQ_MASK(he_dev->tpdrq_tail), TPDRQ_T); 23251da177e4SLinus Torvalds (void) he_readl(he_dev, TPDRQ_T); /* flush posted writes */ 23261da177e4SLinus Torvalds } 23271da177e4SLinus Torvalds 23281da177e4SLinus Torvalds static int 23291da177e4SLinus Torvalds he_open(struct atm_vcc *vcc) 23301da177e4SLinus Torvalds { 23311da177e4SLinus Torvalds unsigned long flags; 23321da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(vcc->dev); 23331da177e4SLinus Torvalds struct he_vcc *he_vcc; 23341da177e4SLinus Torvalds int err = 0; 23351da177e4SLinus Torvalds unsigned cid, rsr0, rsr1, rsr4, tsr0, tsr0_aal, tsr4, period, reg, clock; 23361da177e4SLinus Torvalds short vpi = vcc->vpi; 23371da177e4SLinus Torvalds int vci = vcc->vci; 23381da177e4SLinus Torvalds 23391da177e4SLinus Torvalds if (vci == ATM_VCI_UNSPEC || vpi == ATM_VPI_UNSPEC) 23401da177e4SLinus Torvalds return 0; 23411da177e4SLinus Torvalds 23421da177e4SLinus Torvalds HPRINTK("open vcc %p %d.%d\n", vcc, vpi, vci); 23431da177e4SLinus Torvalds 23441da177e4SLinus Torvalds set_bit(ATM_VF_ADDR, &vcc->flags); 23451da177e4SLinus Torvalds 23461da177e4SLinus Torvalds cid = he_mkcid(he_dev, vpi, vci); 23471da177e4SLinus Torvalds 23481da177e4SLinus Torvalds he_vcc = (struct he_vcc *) kmalloc(sizeof(struct he_vcc), GFP_ATOMIC); 23491da177e4SLinus Torvalds if (he_vcc == NULL) { 23501da177e4SLinus Torvalds hprintk("unable to allocate he_vcc during open\n"); 23511da177e4SLinus Torvalds return -ENOMEM; 23521da177e4SLinus Torvalds } 23531da177e4SLinus Torvalds 23541da177e4SLinus Torvalds he_vcc->iov_tail = he_vcc->iov_head; 23551da177e4SLinus Torvalds he_vcc->pdu_len = 0; 23561da177e4SLinus Torvalds he_vcc->rc_index = -1; 23571da177e4SLinus Torvalds 23581da177e4SLinus Torvalds init_waitqueue_head(&he_vcc->rx_waitq); 23591da177e4SLinus Torvalds init_waitqueue_head(&he_vcc->tx_waitq); 23601da177e4SLinus Torvalds 23611da177e4SLinus Torvalds vcc->dev_data = he_vcc; 23621da177e4SLinus Torvalds 23631da177e4SLinus Torvalds if (vcc->qos.txtp.traffic_class != ATM_NONE) { 23641da177e4SLinus Torvalds int pcr_goal; 23651da177e4SLinus Torvalds 23661da177e4SLinus Torvalds pcr_goal = atm_pcr_goal(&vcc->qos.txtp); 23671da177e4SLinus Torvalds if (pcr_goal == 0) 23681da177e4SLinus Torvalds pcr_goal = he_dev->atm_dev->link_rate; 23691da177e4SLinus Torvalds if (pcr_goal < 0) /* means round down, technically */ 23701da177e4SLinus Torvalds pcr_goal = -pcr_goal; 23711da177e4SLinus Torvalds 23721da177e4SLinus Torvalds HPRINTK("open tx cid 0x%x pcr_goal %d\n", cid, pcr_goal); 23731da177e4SLinus Torvalds 23741da177e4SLinus Torvalds switch (vcc->qos.aal) { 23751da177e4SLinus Torvalds case ATM_AAL5: 23761da177e4SLinus Torvalds tsr0_aal = TSR0_AAL5; 23771da177e4SLinus Torvalds tsr4 = TSR4_AAL5; 23781da177e4SLinus Torvalds break; 23791da177e4SLinus Torvalds case ATM_AAL0: 23801da177e4SLinus Torvalds tsr0_aal = TSR0_AAL0_SDU; 23811da177e4SLinus Torvalds tsr4 = TSR4_AAL0_SDU; 23821da177e4SLinus Torvalds break; 23831da177e4SLinus Torvalds default: 23841da177e4SLinus Torvalds err = -EINVAL; 23851da177e4SLinus Torvalds goto open_failed; 23861da177e4SLinus Torvalds } 23871da177e4SLinus Torvalds 23881da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 23891da177e4SLinus Torvalds tsr0 = he_readl_tsr0(he_dev, cid); 23901da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 23911da177e4SLinus Torvalds 23921da177e4SLinus Torvalds if (TSR0_CONN_STATE(tsr0) != 0) { 23931da177e4SLinus Torvalds hprintk("cid 0x%x not idle (tsr0 = 0x%x)\n", cid, tsr0); 23941da177e4SLinus Torvalds err = -EBUSY; 23951da177e4SLinus Torvalds goto open_failed; 23961da177e4SLinus Torvalds } 23971da177e4SLinus Torvalds 23981da177e4SLinus Torvalds switch (vcc->qos.txtp.traffic_class) { 23991da177e4SLinus Torvalds case ATM_UBR: 24001da177e4SLinus Torvalds /* 2.3.3.1 open connection ubr */ 24011da177e4SLinus Torvalds 24021da177e4SLinus Torvalds tsr0 = TSR0_UBR | TSR0_GROUP(0) | tsr0_aal | 24031da177e4SLinus Torvalds TSR0_USE_WMIN | TSR0_UPDATE_GER; 24041da177e4SLinus Torvalds break; 24051da177e4SLinus Torvalds 24061da177e4SLinus Torvalds case ATM_CBR: 24071da177e4SLinus Torvalds /* 2.3.3.2 open connection cbr */ 24081da177e4SLinus Torvalds 24091da177e4SLinus Torvalds /* 8.2.3 cbr scheduler wrap problem -- limit to 90% total link rate */ 24101da177e4SLinus Torvalds if ((he_dev->total_bw + pcr_goal) 24111da177e4SLinus Torvalds > (he_dev->atm_dev->link_rate * 9 / 10)) 24121da177e4SLinus Torvalds { 24131da177e4SLinus Torvalds err = -EBUSY; 24141da177e4SLinus Torvalds goto open_failed; 24151da177e4SLinus Torvalds } 24161da177e4SLinus Torvalds 24171da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); /* also protects he_dev->cs_stper[] */ 24181da177e4SLinus Torvalds 24191da177e4SLinus Torvalds /* find an unused cs_stper register */ 24201da177e4SLinus Torvalds for (reg = 0; reg < HE_NUM_CS_STPER; ++reg) 24211da177e4SLinus Torvalds if (he_dev->cs_stper[reg].inuse == 0 || 24221da177e4SLinus Torvalds he_dev->cs_stper[reg].pcr == pcr_goal) 24231da177e4SLinus Torvalds break; 24241da177e4SLinus Torvalds 24251da177e4SLinus Torvalds if (reg == HE_NUM_CS_STPER) { 24261da177e4SLinus Torvalds err = -EBUSY; 24271da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 24281da177e4SLinus Torvalds goto open_failed; 24291da177e4SLinus Torvalds } 24301da177e4SLinus Torvalds 24311da177e4SLinus Torvalds he_dev->total_bw += pcr_goal; 24321da177e4SLinus Torvalds 24331da177e4SLinus Torvalds he_vcc->rc_index = reg; 24341da177e4SLinus Torvalds ++he_dev->cs_stper[reg].inuse; 24351da177e4SLinus Torvalds he_dev->cs_stper[reg].pcr = pcr_goal; 24361da177e4SLinus Torvalds 24371da177e4SLinus Torvalds clock = he_is622(he_dev) ? 66667000 : 50000000; 24381da177e4SLinus Torvalds period = clock / pcr_goal; 24391da177e4SLinus Torvalds 24401da177e4SLinus Torvalds HPRINTK("rc_index = %d period = %d\n", 24411da177e4SLinus Torvalds reg, period); 24421da177e4SLinus Torvalds 24431da177e4SLinus Torvalds he_writel_mbox(he_dev, rate_to_atmf(period/2), 24441da177e4SLinus Torvalds CS_STPER0 + reg); 24451da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 24461da177e4SLinus Torvalds 24471da177e4SLinus Torvalds tsr0 = TSR0_CBR | TSR0_GROUP(0) | tsr0_aal | 24481da177e4SLinus Torvalds TSR0_RC_INDEX(reg); 24491da177e4SLinus Torvalds 24501da177e4SLinus Torvalds break; 24511da177e4SLinus Torvalds default: 24521da177e4SLinus Torvalds err = -EINVAL; 24531da177e4SLinus Torvalds goto open_failed; 24541da177e4SLinus Torvalds } 24551da177e4SLinus Torvalds 24561da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 24571da177e4SLinus Torvalds 24581da177e4SLinus Torvalds he_writel_tsr0(he_dev, tsr0, cid); 24591da177e4SLinus Torvalds he_writel_tsr4(he_dev, tsr4 | 1, cid); 24601da177e4SLinus Torvalds he_writel_tsr1(he_dev, TSR1_MCR(rate_to_atmf(0)) | 24611da177e4SLinus Torvalds TSR1_PCR(rate_to_atmf(pcr_goal)), cid); 24621da177e4SLinus Torvalds he_writel_tsr2(he_dev, TSR2_ACR(rate_to_atmf(pcr_goal)), cid); 24631da177e4SLinus Torvalds he_writel_tsr9(he_dev, TSR9_OPEN_CONN, cid); 24641da177e4SLinus Torvalds 24651da177e4SLinus Torvalds he_writel_tsr3(he_dev, 0x0, cid); 24661da177e4SLinus Torvalds he_writel_tsr5(he_dev, 0x0, cid); 24671da177e4SLinus Torvalds he_writel_tsr6(he_dev, 0x0, cid); 24681da177e4SLinus Torvalds he_writel_tsr7(he_dev, 0x0, cid); 24691da177e4SLinus Torvalds he_writel_tsr8(he_dev, 0x0, cid); 24701da177e4SLinus Torvalds he_writel_tsr10(he_dev, 0x0, cid); 24711da177e4SLinus Torvalds he_writel_tsr11(he_dev, 0x0, cid); 24721da177e4SLinus Torvalds he_writel_tsr12(he_dev, 0x0, cid); 24731da177e4SLinus Torvalds he_writel_tsr13(he_dev, 0x0, cid); 24741da177e4SLinus Torvalds he_writel_tsr14(he_dev, 0x0, cid); 24751da177e4SLinus Torvalds (void) he_readl_tsr0(he_dev, cid); /* flush posted writes */ 24761da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 24771da177e4SLinus Torvalds } 24781da177e4SLinus Torvalds 24791da177e4SLinus Torvalds if (vcc->qos.rxtp.traffic_class != ATM_NONE) { 24801da177e4SLinus Torvalds unsigned aal; 24811da177e4SLinus Torvalds 24821da177e4SLinus Torvalds HPRINTK("open rx cid 0x%x (rx_waitq %p)\n", cid, 24831da177e4SLinus Torvalds &HE_VCC(vcc)->rx_waitq); 24841da177e4SLinus Torvalds 24851da177e4SLinus Torvalds switch (vcc->qos.aal) { 24861da177e4SLinus Torvalds case ATM_AAL5: 24871da177e4SLinus Torvalds aal = RSR0_AAL5; 24881da177e4SLinus Torvalds break; 24891da177e4SLinus Torvalds case ATM_AAL0: 24901da177e4SLinus Torvalds aal = RSR0_RAWCELL; 24911da177e4SLinus Torvalds break; 24921da177e4SLinus Torvalds default: 24931da177e4SLinus Torvalds err = -EINVAL; 24941da177e4SLinus Torvalds goto open_failed; 24951da177e4SLinus Torvalds } 24961da177e4SLinus Torvalds 24971da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 24981da177e4SLinus Torvalds 24991da177e4SLinus Torvalds rsr0 = he_readl_rsr0(he_dev, cid); 25001da177e4SLinus Torvalds if (rsr0 & RSR0_OPEN_CONN) { 25011da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 25021da177e4SLinus Torvalds 25031da177e4SLinus Torvalds hprintk("cid 0x%x not idle (rsr0 = 0x%x)\n", cid, rsr0); 25041da177e4SLinus Torvalds err = -EBUSY; 25051da177e4SLinus Torvalds goto open_failed; 25061da177e4SLinus Torvalds } 25071da177e4SLinus Torvalds 25081da177e4SLinus Torvalds #ifdef USE_RBPS 25091da177e4SLinus Torvalds rsr1 = RSR1_GROUP(0); 25101da177e4SLinus Torvalds rsr4 = RSR4_GROUP(0); 25111da177e4SLinus Torvalds #else /* !USE_RBPS */ 25121da177e4SLinus Torvalds rsr1 = RSR1_GROUP(0)|RSR1_RBPL_ONLY; 25131da177e4SLinus Torvalds rsr4 = RSR4_GROUP(0)|RSR4_RBPL_ONLY; 25141da177e4SLinus Torvalds #endif /* USE_RBPS */ 25151da177e4SLinus Torvalds rsr0 = vcc->qos.rxtp.traffic_class == ATM_UBR ? 25161da177e4SLinus Torvalds (RSR0_EPD_ENABLE|RSR0_PPD_ENABLE) : 0; 25171da177e4SLinus Torvalds 25181da177e4SLinus Torvalds #ifdef USE_CHECKSUM_HW 25191da177e4SLinus Torvalds if (vpi == 0 && vci >= ATM_NOT_RSV_VCI) 25201da177e4SLinus Torvalds rsr0 |= RSR0_TCP_CKSUM; 25211da177e4SLinus Torvalds #endif 25221da177e4SLinus Torvalds 25231da177e4SLinus Torvalds he_writel_rsr4(he_dev, rsr4, cid); 25241da177e4SLinus Torvalds he_writel_rsr1(he_dev, rsr1, cid); 25251da177e4SLinus Torvalds /* 5.1.11 last parameter initialized should be 25261da177e4SLinus Torvalds the open/closed indication in rsr0 */ 25271da177e4SLinus Torvalds he_writel_rsr0(he_dev, 25281da177e4SLinus Torvalds rsr0 | RSR0_START_PDU | RSR0_OPEN_CONN | aal, cid); 25291da177e4SLinus Torvalds (void) he_readl_rsr0(he_dev, cid); /* flush posted writes */ 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 25321da177e4SLinus Torvalds } 25331da177e4SLinus Torvalds 25341da177e4SLinus Torvalds open_failed: 25351da177e4SLinus Torvalds 25361da177e4SLinus Torvalds if (err) { 25371da177e4SLinus Torvalds if (he_vcc) 25381da177e4SLinus Torvalds kfree(he_vcc); 25391da177e4SLinus Torvalds clear_bit(ATM_VF_ADDR, &vcc->flags); 25401da177e4SLinus Torvalds } 25411da177e4SLinus Torvalds else 25421da177e4SLinus Torvalds set_bit(ATM_VF_READY, &vcc->flags); 25431da177e4SLinus Torvalds 25441da177e4SLinus Torvalds return err; 25451da177e4SLinus Torvalds } 25461da177e4SLinus Torvalds 25471da177e4SLinus Torvalds static void 25481da177e4SLinus Torvalds he_close(struct atm_vcc *vcc) 25491da177e4SLinus Torvalds { 25501da177e4SLinus Torvalds unsigned long flags; 25511da177e4SLinus Torvalds DECLARE_WAITQUEUE(wait, current); 25521da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(vcc->dev); 25531da177e4SLinus Torvalds struct he_tpd *tpd; 25541da177e4SLinus Torvalds unsigned cid; 25551da177e4SLinus Torvalds struct he_vcc *he_vcc = HE_VCC(vcc); 25561da177e4SLinus Torvalds #define MAX_RETRY 30 25571da177e4SLinus Torvalds int retry = 0, sleep = 1, tx_inuse; 25581da177e4SLinus Torvalds 25591da177e4SLinus Torvalds HPRINTK("close vcc %p %d.%d\n", vcc, vcc->vpi, vcc->vci); 25601da177e4SLinus Torvalds 25611da177e4SLinus Torvalds clear_bit(ATM_VF_READY, &vcc->flags); 25621da177e4SLinus Torvalds cid = he_mkcid(he_dev, vcc->vpi, vcc->vci); 25631da177e4SLinus Torvalds 25641da177e4SLinus Torvalds if (vcc->qos.rxtp.traffic_class != ATM_NONE) { 25651da177e4SLinus Torvalds int timeout; 25661da177e4SLinus Torvalds 25671da177e4SLinus Torvalds HPRINTK("close rx cid 0x%x\n", cid); 25681da177e4SLinus Torvalds 25691da177e4SLinus Torvalds /* 2.7.2.2 close receive operation */ 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds /* wait for previous close (if any) to finish */ 25721da177e4SLinus Torvalds 25731da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 25741da177e4SLinus Torvalds while (he_readl(he_dev, RCC_STAT) & RCC_BUSY) { 25751da177e4SLinus Torvalds HPRINTK("close cid 0x%x RCC_BUSY\n", cid); 25761da177e4SLinus Torvalds udelay(250); 25771da177e4SLinus Torvalds } 25781da177e4SLinus Torvalds 25791da177e4SLinus Torvalds set_current_state(TASK_UNINTERRUPTIBLE); 25801da177e4SLinus Torvalds add_wait_queue(&he_vcc->rx_waitq, &wait); 25811da177e4SLinus Torvalds 25821da177e4SLinus Torvalds he_writel_rsr0(he_dev, RSR0_CLOSE_CONN, cid); 25831da177e4SLinus Torvalds (void) he_readl_rsr0(he_dev, cid); /* flush posted writes */ 25841da177e4SLinus Torvalds he_writel_mbox(he_dev, cid, RXCON_CLOSE); 25851da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 25861da177e4SLinus Torvalds 25871da177e4SLinus Torvalds timeout = schedule_timeout(30*HZ); 25881da177e4SLinus Torvalds 25891da177e4SLinus Torvalds remove_wait_queue(&he_vcc->rx_waitq, &wait); 25901da177e4SLinus Torvalds set_current_state(TASK_RUNNING); 25911da177e4SLinus Torvalds 25921da177e4SLinus Torvalds if (timeout == 0) 25931da177e4SLinus Torvalds hprintk("close rx timeout cid 0x%x\n", cid); 25941da177e4SLinus Torvalds 25951da177e4SLinus Torvalds HPRINTK("close rx cid 0x%x complete\n", cid); 25961da177e4SLinus Torvalds 25971da177e4SLinus Torvalds } 25981da177e4SLinus Torvalds 25991da177e4SLinus Torvalds if (vcc->qos.txtp.traffic_class != ATM_NONE) { 26001da177e4SLinus Torvalds volatile unsigned tsr4, tsr0; 26011da177e4SLinus Torvalds int timeout; 26021da177e4SLinus Torvalds 26031da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x\n", cid); 26041da177e4SLinus Torvalds 26051da177e4SLinus Torvalds /* 2.1.2 26061da177e4SLinus Torvalds * 26071da177e4SLinus Torvalds * ... the host must first stop queueing packets to the TPDRQ 26081da177e4SLinus Torvalds * on the connection to be closed, then wait for all outstanding 26091da177e4SLinus Torvalds * packets to be transmitted and their buffers returned to the 26101da177e4SLinus Torvalds * TBRQ. When the last packet on the connection arrives in the 26111da177e4SLinus Torvalds * TBRQ, the host issues the close command to the adapter. 26121da177e4SLinus Torvalds */ 26131da177e4SLinus Torvalds 26141da177e4SLinus Torvalds while (((tx_inuse = atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) > 0) && 26151da177e4SLinus Torvalds (retry < MAX_RETRY)) { 26161da177e4SLinus Torvalds msleep(sleep); 26171da177e4SLinus Torvalds if (sleep < 250) 26181da177e4SLinus Torvalds sleep = sleep * 2; 26191da177e4SLinus Torvalds 26201da177e4SLinus Torvalds ++retry; 26211da177e4SLinus Torvalds } 26221da177e4SLinus Torvalds 26231da177e4SLinus Torvalds if (tx_inuse) 26241da177e4SLinus Torvalds hprintk("close tx cid 0x%x tx_inuse = %d\n", cid, tx_inuse); 26251da177e4SLinus Torvalds 26261da177e4SLinus Torvalds /* 2.3.1.1 generic close operations with flush */ 26271da177e4SLinus Torvalds 26281da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 26291da177e4SLinus Torvalds he_writel_tsr4_upper(he_dev, TSR4_FLUSH_CONN, cid); 26301da177e4SLinus Torvalds /* also clears TSR4_SESSION_ENDED */ 26311da177e4SLinus Torvalds 26321da177e4SLinus Torvalds switch (vcc->qos.txtp.traffic_class) { 26331da177e4SLinus Torvalds case ATM_UBR: 26341da177e4SLinus Torvalds he_writel_tsr1(he_dev, 26351da177e4SLinus Torvalds TSR1_MCR(rate_to_atmf(200000)) 26361da177e4SLinus Torvalds | TSR1_PCR(0), cid); 26371da177e4SLinus Torvalds break; 26381da177e4SLinus Torvalds case ATM_CBR: 26391da177e4SLinus Torvalds he_writel_tsr14_upper(he_dev, TSR14_DELETE, cid); 26401da177e4SLinus Torvalds break; 26411da177e4SLinus Torvalds } 26421da177e4SLinus Torvalds (void) he_readl_tsr4(he_dev, cid); /* flush posted writes */ 26431da177e4SLinus Torvalds 26441da177e4SLinus Torvalds tpd = __alloc_tpd(he_dev); 26451da177e4SLinus Torvalds if (tpd == NULL) { 26461da177e4SLinus Torvalds hprintk("close tx he_alloc_tpd failed cid 0x%x\n", cid); 26471da177e4SLinus Torvalds goto close_tx_incomplete; 26481da177e4SLinus Torvalds } 26491da177e4SLinus Torvalds tpd->status |= TPD_EOS | TPD_INT; 26501da177e4SLinus Torvalds tpd->skb = NULL; 26511da177e4SLinus Torvalds tpd->vcc = vcc; 26521da177e4SLinus Torvalds wmb(); 26531da177e4SLinus Torvalds 26541da177e4SLinus Torvalds set_current_state(TASK_UNINTERRUPTIBLE); 26551da177e4SLinus Torvalds add_wait_queue(&he_vcc->tx_waitq, &wait); 26561da177e4SLinus Torvalds __enqueue_tpd(he_dev, tpd, cid); 26571da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 26581da177e4SLinus Torvalds 26591da177e4SLinus Torvalds timeout = schedule_timeout(30*HZ); 26601da177e4SLinus Torvalds 26611da177e4SLinus Torvalds remove_wait_queue(&he_vcc->tx_waitq, &wait); 26621da177e4SLinus Torvalds set_current_state(TASK_RUNNING); 26631da177e4SLinus Torvalds 26641da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 26651da177e4SLinus Torvalds 26661da177e4SLinus Torvalds if (timeout == 0) { 26671da177e4SLinus Torvalds hprintk("close tx timeout cid 0x%x\n", cid); 26681da177e4SLinus Torvalds goto close_tx_incomplete; 26691da177e4SLinus Torvalds } 26701da177e4SLinus Torvalds 26711da177e4SLinus Torvalds while (!((tsr4 = he_readl_tsr4(he_dev, cid)) & TSR4_SESSION_ENDED)) { 26721da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x !TSR4_SESSION_ENDED (tsr4 = 0x%x)\n", cid, tsr4); 26731da177e4SLinus Torvalds udelay(250); 26741da177e4SLinus Torvalds } 26751da177e4SLinus Torvalds 26761da177e4SLinus Torvalds while (TSR0_CONN_STATE(tsr0 = he_readl_tsr0(he_dev, cid)) != 0) { 26771da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x TSR0_CONN_STATE != 0 (tsr0 = 0x%x)\n", cid, tsr0); 26781da177e4SLinus Torvalds udelay(250); 26791da177e4SLinus Torvalds } 26801da177e4SLinus Torvalds 26811da177e4SLinus Torvalds close_tx_incomplete: 26821da177e4SLinus Torvalds 26831da177e4SLinus Torvalds if (vcc->qos.txtp.traffic_class == ATM_CBR) { 26841da177e4SLinus Torvalds int reg = he_vcc->rc_index; 26851da177e4SLinus Torvalds 26861da177e4SLinus Torvalds HPRINTK("cs_stper reg = %d\n", reg); 26871da177e4SLinus Torvalds 26881da177e4SLinus Torvalds if (he_dev->cs_stper[reg].inuse == 0) 26891da177e4SLinus Torvalds hprintk("cs_stper[%d].inuse = 0!\n", reg); 26901da177e4SLinus Torvalds else 26911da177e4SLinus Torvalds --he_dev->cs_stper[reg].inuse; 26921da177e4SLinus Torvalds 26931da177e4SLinus Torvalds he_dev->total_bw -= he_dev->cs_stper[reg].pcr; 26941da177e4SLinus Torvalds } 26951da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 26961da177e4SLinus Torvalds 26971da177e4SLinus Torvalds HPRINTK("close tx cid 0x%x complete\n", cid); 26981da177e4SLinus Torvalds } 26991da177e4SLinus Torvalds 27001da177e4SLinus Torvalds kfree(he_vcc); 27011da177e4SLinus Torvalds 27021da177e4SLinus Torvalds clear_bit(ATM_VF_ADDR, &vcc->flags); 27031da177e4SLinus Torvalds } 27041da177e4SLinus Torvalds 27051da177e4SLinus Torvalds static int 27061da177e4SLinus Torvalds he_send(struct atm_vcc *vcc, struct sk_buff *skb) 27071da177e4SLinus Torvalds { 27081da177e4SLinus Torvalds unsigned long flags; 27091da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(vcc->dev); 27101da177e4SLinus Torvalds unsigned cid = he_mkcid(he_dev, vcc->vpi, vcc->vci); 27111da177e4SLinus Torvalds struct he_tpd *tpd; 27121da177e4SLinus Torvalds #ifdef USE_SCATTERGATHER 27131da177e4SLinus Torvalds int i, slot = 0; 27141da177e4SLinus Torvalds #endif 27151da177e4SLinus Torvalds 27161da177e4SLinus Torvalds #define HE_TPD_BUFSIZE 0xffff 27171da177e4SLinus Torvalds 27181da177e4SLinus Torvalds HPRINTK("send %d.%d\n", vcc->vpi, vcc->vci); 27191da177e4SLinus Torvalds 27201da177e4SLinus Torvalds if ((skb->len > HE_TPD_BUFSIZE) || 27211da177e4SLinus Torvalds ((vcc->qos.aal == ATM_AAL0) && (skb->len != ATM_AAL0_SDU))) { 27221da177e4SLinus Torvalds hprintk("buffer too large (or small) -- %d bytes\n", skb->len ); 27231da177e4SLinus Torvalds if (vcc->pop) 27241da177e4SLinus Torvalds vcc->pop(vcc, skb); 27251da177e4SLinus Torvalds else 27261da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27271da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27281da177e4SLinus Torvalds return -EINVAL; 27291da177e4SLinus Torvalds } 27301da177e4SLinus Torvalds 27311da177e4SLinus Torvalds #ifndef USE_SCATTERGATHER 27321da177e4SLinus Torvalds if (skb_shinfo(skb)->nr_frags) { 27331da177e4SLinus Torvalds hprintk("no scatter/gather support\n"); 27341da177e4SLinus Torvalds if (vcc->pop) 27351da177e4SLinus Torvalds vcc->pop(vcc, skb); 27361da177e4SLinus Torvalds else 27371da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27381da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27391da177e4SLinus Torvalds return -EINVAL; 27401da177e4SLinus Torvalds } 27411da177e4SLinus Torvalds #endif 27421da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 27431da177e4SLinus Torvalds 27441da177e4SLinus Torvalds tpd = __alloc_tpd(he_dev); 27451da177e4SLinus Torvalds if (tpd == NULL) { 27461da177e4SLinus Torvalds if (vcc->pop) 27471da177e4SLinus Torvalds vcc->pop(vcc, skb); 27481da177e4SLinus Torvalds else 27491da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27501da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27511da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 27521da177e4SLinus Torvalds return -ENOMEM; 27531da177e4SLinus Torvalds } 27541da177e4SLinus Torvalds 27551da177e4SLinus Torvalds if (vcc->qos.aal == ATM_AAL5) 27561da177e4SLinus Torvalds tpd->status |= TPD_CELLTYPE(TPD_USERCELL); 27571da177e4SLinus Torvalds else { 27581da177e4SLinus Torvalds char *pti_clp = (void *) (skb->data + 3); 27591da177e4SLinus Torvalds int clp, pti; 27601da177e4SLinus Torvalds 27611da177e4SLinus Torvalds pti = (*pti_clp & ATM_HDR_PTI_MASK) >> ATM_HDR_PTI_SHIFT; 27621da177e4SLinus Torvalds clp = (*pti_clp & ATM_HDR_CLP); 27631da177e4SLinus Torvalds tpd->status |= TPD_CELLTYPE(pti); 27641da177e4SLinus Torvalds if (clp) 27651da177e4SLinus Torvalds tpd->status |= TPD_CLP; 27661da177e4SLinus Torvalds 27671da177e4SLinus Torvalds skb_pull(skb, ATM_AAL0_SDU - ATM_CELL_PAYLOAD); 27681da177e4SLinus Torvalds } 27691da177e4SLinus Torvalds 27701da177e4SLinus Torvalds #ifdef USE_SCATTERGATHER 27711da177e4SLinus Torvalds tpd->iovec[slot].addr = pci_map_single(he_dev->pci_dev, skb->data, 27721da177e4SLinus Torvalds skb->len - skb->data_len, PCI_DMA_TODEVICE); 27731da177e4SLinus Torvalds tpd->iovec[slot].len = skb->len - skb->data_len; 27741da177e4SLinus Torvalds ++slot; 27751da177e4SLinus Torvalds 27761da177e4SLinus Torvalds for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 27771da177e4SLinus Torvalds skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 27781da177e4SLinus Torvalds 27791da177e4SLinus Torvalds if (slot == TPD_MAXIOV) { /* queue tpd; start new tpd */ 27801da177e4SLinus Torvalds tpd->vcc = vcc; 27811da177e4SLinus Torvalds tpd->skb = NULL; /* not the last fragment 27821da177e4SLinus Torvalds so dont ->push() yet */ 27831da177e4SLinus Torvalds wmb(); 27841da177e4SLinus Torvalds 27851da177e4SLinus Torvalds __enqueue_tpd(he_dev, tpd, cid); 27861da177e4SLinus Torvalds tpd = __alloc_tpd(he_dev); 27871da177e4SLinus Torvalds if (tpd == NULL) { 27881da177e4SLinus Torvalds if (vcc->pop) 27891da177e4SLinus Torvalds vcc->pop(vcc, skb); 27901da177e4SLinus Torvalds else 27911da177e4SLinus Torvalds dev_kfree_skb_any(skb); 27921da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx_err); 27931da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 27941da177e4SLinus Torvalds return -ENOMEM; 27951da177e4SLinus Torvalds } 27961da177e4SLinus Torvalds tpd->status |= TPD_USERCELL; 27971da177e4SLinus Torvalds slot = 0; 27981da177e4SLinus Torvalds } 27991da177e4SLinus Torvalds 28001da177e4SLinus Torvalds tpd->iovec[slot].addr = pci_map_single(he_dev->pci_dev, 28011da177e4SLinus Torvalds (void *) page_address(frag->page) + frag->page_offset, 28021da177e4SLinus Torvalds frag->size, PCI_DMA_TODEVICE); 28031da177e4SLinus Torvalds tpd->iovec[slot].len = frag->size; 28041da177e4SLinus Torvalds ++slot; 28051da177e4SLinus Torvalds 28061da177e4SLinus Torvalds } 28071da177e4SLinus Torvalds 28081da177e4SLinus Torvalds tpd->iovec[slot - 1].len |= TPD_LST; 28091da177e4SLinus Torvalds #else 28101da177e4SLinus Torvalds tpd->address0 = pci_map_single(he_dev->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); 28111da177e4SLinus Torvalds tpd->length0 = skb->len | TPD_LST; 28121da177e4SLinus Torvalds #endif 28131da177e4SLinus Torvalds tpd->status |= TPD_INT; 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds tpd->vcc = vcc; 28161da177e4SLinus Torvalds tpd->skb = skb; 28171da177e4SLinus Torvalds wmb(); 28181da177e4SLinus Torvalds ATM_SKB(skb)->vcc = vcc; 28191da177e4SLinus Torvalds 28201da177e4SLinus Torvalds __enqueue_tpd(he_dev, tpd, cid); 28211da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 28221da177e4SLinus Torvalds 28231da177e4SLinus Torvalds atomic_inc(&vcc->stats->tx); 28241da177e4SLinus Torvalds 28251da177e4SLinus Torvalds return 0; 28261da177e4SLinus Torvalds } 28271da177e4SLinus Torvalds 28281da177e4SLinus Torvalds static int 28291da177e4SLinus Torvalds he_ioctl(struct atm_dev *atm_dev, unsigned int cmd, void __user *arg) 28301da177e4SLinus Torvalds { 28311da177e4SLinus Torvalds unsigned long flags; 28321da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(atm_dev); 28331da177e4SLinus Torvalds struct he_ioctl_reg reg; 28341da177e4SLinus Torvalds int err = 0; 28351da177e4SLinus Torvalds 28361da177e4SLinus Torvalds switch (cmd) { 28371da177e4SLinus Torvalds case HE_GET_REG: 28381da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 28391da177e4SLinus Torvalds return -EPERM; 28401da177e4SLinus Torvalds 28411da177e4SLinus Torvalds if (copy_from_user(®, arg, 28421da177e4SLinus Torvalds sizeof(struct he_ioctl_reg))) 28431da177e4SLinus Torvalds return -EFAULT; 28441da177e4SLinus Torvalds 28451da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 28461da177e4SLinus Torvalds switch (reg.type) { 28471da177e4SLinus Torvalds case HE_REGTYPE_PCI: 28481da177e4SLinus Torvalds reg.val = he_readl(he_dev, reg.addr); 28491da177e4SLinus Torvalds break; 28501da177e4SLinus Torvalds case HE_REGTYPE_RCM: 28511da177e4SLinus Torvalds reg.val = 28521da177e4SLinus Torvalds he_readl_rcm(he_dev, reg.addr); 28531da177e4SLinus Torvalds break; 28541da177e4SLinus Torvalds case HE_REGTYPE_TCM: 28551da177e4SLinus Torvalds reg.val = 28561da177e4SLinus Torvalds he_readl_tcm(he_dev, reg.addr); 28571da177e4SLinus Torvalds break; 28581da177e4SLinus Torvalds case HE_REGTYPE_MBOX: 28591da177e4SLinus Torvalds reg.val = 28601da177e4SLinus Torvalds he_readl_mbox(he_dev, reg.addr); 28611da177e4SLinus Torvalds break; 28621da177e4SLinus Torvalds default: 28631da177e4SLinus Torvalds err = -EINVAL; 28641da177e4SLinus Torvalds break; 28651da177e4SLinus Torvalds } 28661da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 28671da177e4SLinus Torvalds if (err == 0) 28681da177e4SLinus Torvalds if (copy_to_user(arg, ®, 28691da177e4SLinus Torvalds sizeof(struct he_ioctl_reg))) 28701da177e4SLinus Torvalds return -EFAULT; 28711da177e4SLinus Torvalds break; 28721da177e4SLinus Torvalds default: 28731da177e4SLinus Torvalds #ifdef CONFIG_ATM_HE_USE_SUNI 28741da177e4SLinus Torvalds if (atm_dev->phy && atm_dev->phy->ioctl) 28751da177e4SLinus Torvalds err = atm_dev->phy->ioctl(atm_dev, cmd, arg); 28761da177e4SLinus Torvalds #else /* CONFIG_ATM_HE_USE_SUNI */ 28771da177e4SLinus Torvalds err = -EINVAL; 28781da177e4SLinus Torvalds #endif /* CONFIG_ATM_HE_USE_SUNI */ 28791da177e4SLinus Torvalds break; 28801da177e4SLinus Torvalds } 28811da177e4SLinus Torvalds 28821da177e4SLinus Torvalds return err; 28831da177e4SLinus Torvalds } 28841da177e4SLinus Torvalds 28851da177e4SLinus Torvalds static void 28861da177e4SLinus Torvalds he_phy_put(struct atm_dev *atm_dev, unsigned char val, unsigned long addr) 28871da177e4SLinus Torvalds { 28881da177e4SLinus Torvalds unsigned long flags; 28891da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(atm_dev); 28901da177e4SLinus Torvalds 28911da177e4SLinus Torvalds HPRINTK("phy_put(val 0x%x, addr 0x%lx)\n", val, addr); 28921da177e4SLinus Torvalds 28931da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 28941da177e4SLinus Torvalds he_writel(he_dev, val, FRAMER + (addr*4)); 28951da177e4SLinus Torvalds (void) he_readl(he_dev, FRAMER + (addr*4)); /* flush posted writes */ 28961da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 28971da177e4SLinus Torvalds } 28981da177e4SLinus Torvalds 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds static unsigned char 29011da177e4SLinus Torvalds he_phy_get(struct atm_dev *atm_dev, unsigned long addr) 29021da177e4SLinus Torvalds { 29031da177e4SLinus Torvalds unsigned long flags; 29041da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(atm_dev); 29051da177e4SLinus Torvalds unsigned reg; 29061da177e4SLinus Torvalds 29071da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 29081da177e4SLinus Torvalds reg = he_readl(he_dev, FRAMER + (addr*4)); 29091da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 29101da177e4SLinus Torvalds 29111da177e4SLinus Torvalds HPRINTK("phy_get(addr 0x%lx) =0x%x\n", addr, reg); 29121da177e4SLinus Torvalds return reg; 29131da177e4SLinus Torvalds } 29141da177e4SLinus Torvalds 29151da177e4SLinus Torvalds static int 29161da177e4SLinus Torvalds he_proc_read(struct atm_dev *dev, loff_t *pos, char *page) 29171da177e4SLinus Torvalds { 29181da177e4SLinus Torvalds unsigned long flags; 29191da177e4SLinus Torvalds struct he_dev *he_dev = HE_DEV(dev); 29201da177e4SLinus Torvalds int left, i; 29211da177e4SLinus Torvalds #ifdef notdef 29221da177e4SLinus Torvalds struct he_rbrq *rbrq_tail; 29231da177e4SLinus Torvalds struct he_tpdrq *tpdrq_head; 29241da177e4SLinus Torvalds int rbpl_head, rbpl_tail; 29251da177e4SLinus Torvalds #endif 29261da177e4SLinus Torvalds static long mcc = 0, oec = 0, dcc = 0, cec = 0; 29271da177e4SLinus Torvalds 29281da177e4SLinus Torvalds 29291da177e4SLinus Torvalds left = *pos; 29301da177e4SLinus Torvalds if (!left--) 29311da177e4SLinus Torvalds return sprintf(page, "%s\n", version); 29321da177e4SLinus Torvalds 29331da177e4SLinus Torvalds if (!left--) 29341da177e4SLinus Torvalds return sprintf(page, "%s%s\n\n", 29351da177e4SLinus Torvalds he_dev->prod_id, he_dev->media & 0x40 ? "SM" : "MM"); 29361da177e4SLinus Torvalds 29371da177e4SLinus Torvalds if (!left--) 29381da177e4SLinus Torvalds return sprintf(page, "Mismatched Cells VPI/VCI Not Open Dropped Cells RCM Dropped Cells\n"); 29391da177e4SLinus Torvalds 29401da177e4SLinus Torvalds spin_lock_irqsave(&he_dev->global_lock, flags); 29411da177e4SLinus Torvalds mcc += he_readl(he_dev, MCC); 29421da177e4SLinus Torvalds oec += he_readl(he_dev, OEC); 29431da177e4SLinus Torvalds dcc += he_readl(he_dev, DCC); 29441da177e4SLinus Torvalds cec += he_readl(he_dev, CEC); 29451da177e4SLinus Torvalds spin_unlock_irqrestore(&he_dev->global_lock, flags); 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds if (!left--) 29481da177e4SLinus Torvalds return sprintf(page, "%16ld %16ld %13ld %17ld\n\n", 29491da177e4SLinus Torvalds mcc, oec, dcc, cec); 29501da177e4SLinus Torvalds 29511da177e4SLinus Torvalds if (!left--) 29521da177e4SLinus Torvalds return sprintf(page, "irq_size = %d inuse = ? peak = %d\n", 29531da177e4SLinus Torvalds CONFIG_IRQ_SIZE, he_dev->irq_peak); 29541da177e4SLinus Torvalds 29551da177e4SLinus Torvalds if (!left--) 29561da177e4SLinus Torvalds return sprintf(page, "tpdrq_size = %d inuse = ?\n", 29571da177e4SLinus Torvalds CONFIG_TPDRQ_SIZE); 29581da177e4SLinus Torvalds 29591da177e4SLinus Torvalds if (!left--) 29601da177e4SLinus Torvalds return sprintf(page, "rbrq_size = %d inuse = ? peak = %d\n", 29611da177e4SLinus Torvalds CONFIG_RBRQ_SIZE, he_dev->rbrq_peak); 29621da177e4SLinus Torvalds 29631da177e4SLinus Torvalds if (!left--) 29641da177e4SLinus Torvalds return sprintf(page, "tbrq_size = %d peak = %d\n", 29651da177e4SLinus Torvalds CONFIG_TBRQ_SIZE, he_dev->tbrq_peak); 29661da177e4SLinus Torvalds 29671da177e4SLinus Torvalds 29681da177e4SLinus Torvalds #ifdef notdef 29691da177e4SLinus Torvalds rbpl_head = RBPL_MASK(he_readl(he_dev, G0_RBPL_S)); 29701da177e4SLinus Torvalds rbpl_tail = RBPL_MASK(he_readl(he_dev, G0_RBPL_T)); 29711da177e4SLinus Torvalds 29721da177e4SLinus Torvalds inuse = rbpl_head - rbpl_tail; 29731da177e4SLinus Torvalds if (inuse < 0) 29741da177e4SLinus Torvalds inuse += CONFIG_RBPL_SIZE * sizeof(struct he_rbp); 29751da177e4SLinus Torvalds inuse /= sizeof(struct he_rbp); 29761da177e4SLinus Torvalds 29771da177e4SLinus Torvalds if (!left--) 29781da177e4SLinus Torvalds return sprintf(page, "rbpl_size = %d inuse = %d\n\n", 29791da177e4SLinus Torvalds CONFIG_RBPL_SIZE, inuse); 29801da177e4SLinus Torvalds #endif 29811da177e4SLinus Torvalds 29821da177e4SLinus Torvalds if (!left--) 29831da177e4SLinus Torvalds return sprintf(page, "rate controller periods (cbr)\n pcr #vc\n"); 29841da177e4SLinus Torvalds 29851da177e4SLinus Torvalds for (i = 0; i < HE_NUM_CS_STPER; ++i) 29861da177e4SLinus Torvalds if (!left--) 29871da177e4SLinus Torvalds return sprintf(page, "cs_stper%-2d %8ld %3d\n", i, 29881da177e4SLinus Torvalds he_dev->cs_stper[i].pcr, 29891da177e4SLinus Torvalds he_dev->cs_stper[i].inuse); 29901da177e4SLinus Torvalds 29911da177e4SLinus Torvalds if (!left--) 29921da177e4SLinus Torvalds return sprintf(page, "total bw (cbr): %d (limit %d)\n", 29931da177e4SLinus Torvalds he_dev->total_bw, he_dev->atm_dev->link_rate * 10 / 9); 29941da177e4SLinus Torvalds 29951da177e4SLinus Torvalds return 0; 29961da177e4SLinus Torvalds } 29971da177e4SLinus Torvalds 29981da177e4SLinus Torvalds /* eeprom routines -- see 4.7 */ 29991da177e4SLinus Torvalds 30001da177e4SLinus Torvalds u8 30011da177e4SLinus Torvalds read_prom_byte(struct he_dev *he_dev, int addr) 30021da177e4SLinus Torvalds { 30031da177e4SLinus Torvalds u32 val = 0, tmp_read = 0; 30041da177e4SLinus Torvalds int i, j = 0; 30051da177e4SLinus Torvalds u8 byte_read = 0; 30061da177e4SLinus Torvalds 30071da177e4SLinus Torvalds val = readl(he_dev->membase + HOST_CNTL); 30081da177e4SLinus Torvalds val &= 0xFFFFE0FF; 30091da177e4SLinus Torvalds 30101da177e4SLinus Torvalds /* Turn on write enable */ 30111da177e4SLinus Torvalds val |= 0x800; 30121da177e4SLinus Torvalds he_writel(he_dev, val, HOST_CNTL); 30131da177e4SLinus Torvalds 30141da177e4SLinus Torvalds /* Send READ instruction */ 30151da177e4SLinus Torvalds for (i = 0; i < sizeof(readtab)/sizeof(readtab[0]); i++) { 30161da177e4SLinus Torvalds he_writel(he_dev, val | readtab[i], HOST_CNTL); 30171da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30181da177e4SLinus Torvalds } 30191da177e4SLinus Torvalds 30201da177e4SLinus Torvalds /* Next, we need to send the byte address to read from */ 30211da177e4SLinus Torvalds for (i = 7; i >= 0; i--) { 30221da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++] | (((addr >> i) & 1) << 9), HOST_CNTL); 30231da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30241da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++] | (((addr >> i) & 1) << 9), HOST_CNTL); 30251da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30261da177e4SLinus Torvalds } 30271da177e4SLinus Torvalds 30281da177e4SLinus Torvalds j = 0; 30291da177e4SLinus Torvalds 30301da177e4SLinus Torvalds val &= 0xFFFFF7FF; /* Turn off write enable */ 30311da177e4SLinus Torvalds he_writel(he_dev, val, HOST_CNTL); 30321da177e4SLinus Torvalds 30331da177e4SLinus Torvalds /* Now, we can read data from the EEPROM by clocking it in */ 30341da177e4SLinus Torvalds for (i = 7; i >= 0; i--) { 30351da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++], HOST_CNTL); 30361da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30371da177e4SLinus Torvalds tmp_read = he_readl(he_dev, HOST_CNTL); 30381da177e4SLinus Torvalds byte_read |= (unsigned char) 30391da177e4SLinus Torvalds ((tmp_read & ID_DOUT) >> ID_DOFFSET << i); 30401da177e4SLinus Torvalds he_writel(he_dev, val | clocktab[j++], HOST_CNTL); 30411da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30421da177e4SLinus Torvalds } 30431da177e4SLinus Torvalds 30441da177e4SLinus Torvalds he_writel(he_dev, val | ID_CS, HOST_CNTL); 30451da177e4SLinus Torvalds udelay(EEPROM_DELAY); 30461da177e4SLinus Torvalds 30471da177e4SLinus Torvalds return byte_read; 30481da177e4SLinus Torvalds } 30491da177e4SLinus Torvalds 30501da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 30511da177e4SLinus Torvalds MODULE_AUTHOR("chas williams <chas@cmf.nrl.navy.mil>"); 30521da177e4SLinus Torvalds MODULE_DESCRIPTION("ForeRunnerHE ATM Adapter driver"); 30531da177e4SLinus Torvalds module_param(disable64, bool, 0); 30541da177e4SLinus Torvalds MODULE_PARM_DESC(disable64, "disable 64-bit pci bus transfers"); 30551da177e4SLinus Torvalds module_param(nvpibits, short, 0); 30561da177e4SLinus Torvalds MODULE_PARM_DESC(nvpibits, "numbers of bits for vpi (default 0)"); 30571da177e4SLinus Torvalds module_param(nvcibits, short, 0); 30581da177e4SLinus Torvalds MODULE_PARM_DESC(nvcibits, "numbers of bits for vci (default 12)"); 30591da177e4SLinus Torvalds module_param(rx_skb_reserve, short, 0); 30601da177e4SLinus Torvalds MODULE_PARM_DESC(rx_skb_reserve, "padding for receive skb (default 16)"); 30611da177e4SLinus Torvalds module_param(irq_coalesce, bool, 0); 30621da177e4SLinus Torvalds MODULE_PARM_DESC(irq_coalesce, "use interrupt coalescing (default 1)"); 30631da177e4SLinus Torvalds module_param(sdh, bool, 0); 30641da177e4SLinus Torvalds MODULE_PARM_DESC(sdh, "use SDH framing (default 0)"); 30651da177e4SLinus Torvalds 30661da177e4SLinus Torvalds static struct pci_device_id he_pci_tbl[] = { 30671da177e4SLinus Torvalds { PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_HE, PCI_ANY_ID, PCI_ANY_ID, 30681da177e4SLinus Torvalds 0, 0, 0 }, 30691da177e4SLinus Torvalds { 0, } 30701da177e4SLinus Torvalds }; 30711da177e4SLinus Torvalds 30721da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, he_pci_tbl); 30731da177e4SLinus Torvalds 30741da177e4SLinus Torvalds static struct pci_driver he_driver = { 30751da177e4SLinus Torvalds .name = "he", 30761da177e4SLinus Torvalds .probe = he_init_one, 30771da177e4SLinus Torvalds .remove = __devexit_p(he_remove_one), 30781da177e4SLinus Torvalds .id_table = he_pci_tbl, 30791da177e4SLinus Torvalds }; 30801da177e4SLinus Torvalds 30811da177e4SLinus Torvalds static int __init he_init(void) 30821da177e4SLinus Torvalds { 30831da177e4SLinus Torvalds return pci_register_driver(&he_driver); 30841da177e4SLinus Torvalds } 30851da177e4SLinus Torvalds 30861da177e4SLinus Torvalds static void __exit he_cleanup(void) 30871da177e4SLinus Torvalds { 30881da177e4SLinus Torvalds pci_unregister_driver(&he_driver); 30891da177e4SLinus Torvalds } 30901da177e4SLinus Torvalds 30911da177e4SLinus Torvalds module_init(he_init); 30921da177e4SLinus Torvalds module_exit(he_cleanup); 3093