110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik#define VERSION "0.23" 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* ns83820.c by Benjamin LaHaise with contributions. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Questions/comments/discussion to linux-ns83820@kvack.org. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * $Revision: 1.34.2.23 $ 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright 2001 Benjamin LaHaise. 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright 2001, 2002 Red Hat. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mmmm, chocolate vanilla mocha... 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ChangeLog 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ========= 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010414 0.1 - created 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010622 0.2 - basic rx and tx. 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010711 0.3 - added duplex and link state detection support. 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010713 0.4 - zero copy, no hangs. 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0.5 - 64 bit dma support (davem will hate me for this) 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - disable jumbo frames to avoid tx hangs 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - work around tx deadlocks on my 1.02 card via 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fiddling with TXCFG 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010810 0.6 - use pci dma api for ringbuffers, work on ia64 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010816 0.7 - misc cleanups 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010826 0.8 - fix critical zero copy bugs 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0.9 - internal experiment 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010827 0.10 - fix ia64 unaligned access. 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20010906 0.11 - accept all packets with checksum errors as 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * otherwise fragments get lost 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - fix >> 32 bugs 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0.12 - add statistics counters 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - add allmulti/promisc support 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20011009 0.13 - hotplug support, other smaller pci api cleanups 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20011204 0.13a - optical transceiver support added 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * by Michael Clark <michael@metaparadigm.com> 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20011205 0.13b - call register_netdev earlier in initialization 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * suppress duplicate link status messages 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20011117 0.14 - ethtool GDRVINFO, GLINK support from jgarzik 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20011204 0.15 get ppc (big endian) working 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20011218 0.16 various cleanups 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20020310 0.17 speedups 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20020610 0.18 - actually use the pci dma api for highmem 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - remove pci latency register fiddling 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0.19 - better bist support 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - add ihr and reset_phy parameters 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - gmii bus probing 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - fix missed txok introduced during performance 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * tuning 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0.20 - fix stupid RFEN thinko. i am such a smurf. 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20040828 0.21 - add hardware vlan accleration 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * by Neil Horman <nhorman@redhat.com> 686aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * 20050406 0.22 - improved DAC ifdefs from Andi Kleen 69c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise * - removal of dead code from Adrian Bunk 70c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise * - fix half duplex collision behaviour 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver Overview 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * =============== 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This driver was originally written for the National Semiconductor 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 83820 chip, a 10/100/1000 Mbps 64 bit PCI ethernet NIC. Hopefully 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this code will turn out to be a) clean, b) correct, and c) fast. 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * With that in mind, I'm aiming to split the code up as much as 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * reasonably possible. At present there are X major sections that 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * break down into a) packet receive, b) packet transmit, c) link 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * management, d) initialization and configuration. Where possible, 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * these code paths are designed to run in parallel. 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This driver has been tested and found to work with the following 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cards (in no particular order): 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cameo SOHO-GA2000T SOHO-GA2500T 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * D-Link DGE-500T 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PureData PDP8023Z-TG 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SMC SMC9452TX SMC9462TX 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Netgear GA621 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Special thanks to SMC for providing hardware to test this driver on. 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Reports of success or failure would be greatly appreciated. 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds//#define dprintk printk 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define dprintk(x...) do { } while (0) 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/moduleparam.h> 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 1031e7f0bd8c8f2d0496ad338be5e69ff4395d77da4Domen Puncer#include <linux/dma-mapping.h> 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/netdevice.h> 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/etherdevice.h> 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/workqueue.h> 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 109a6b7a407865aab9f849dd99a71072b7cd1175116Alexey Dobriyan#include <linux/interrupt.h> 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ip.h> /* for iph */ 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/in.h> /* for IPPROTO_... */ 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/compiler.h> 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/prefetch.h> 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ethtool.h> 115d43c36dc6b357fa1806800f18aa30123c747a6d1Alexey Dobriyan#include <linux/sched.h> 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/if_vlan.h> 11814c850212ed8f8cbb5972ad6b8812e08a0bc901cArnaldo Carvalho de Melo#include <linux/rtnetlink.h> 119ff5688ae1cedfb175b5ed0f319d03ad2e5ee005dMarcelo Feitoza Parisi#include <linux/jiffies.h> 1205a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRV_NAME "ns83820" 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Global parameters. See module_param near the bottom. */ 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ihr = 2; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int reset_phy = 0; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lnksts = 0; /* CFG_LNKSTS bit polarity */ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dprintk is used for more interesting debug events */ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#undef Dprintk 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Dprintk dprintk 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* tunables */ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_BUF_SIZE 1500 /* 8192 */ 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NS83820_VLAN_ACCEL_SUPPORT 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Must not exceed ~65000. */ 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NR_RX_DESC 64 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NR_TX_DESC 128 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* not tunable */ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define REAL_RX_BUF_SIZE (RX_BUF_SIZE + 14) /* rx/tx mac addr + type */ 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MIN_TX_DESC_FREE 8 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* register defines */ 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFGCS 0x04 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_TXE 0x00000001 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_TXD 0x00000002 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Ramit : Here's a tip, don't do a RXD immediately followed by an RXE 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The Receive engine skips one descriptor and moves 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * onto the next one!! */ 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_RXE 0x00000004 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_RXD 0x00000008 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_TXR 0x00000010 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_RXR 0x00000020 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_SWI 0x00000080 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR_RST 0x00000100 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_EEBIST_FAIL 0x00000001 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_EEBIST_EN 0x00000002 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_EELOAD_EN 0x00000004 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_RBIST_FAIL 0x000001b8 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_RBIST_DONE 0x00000200 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_RBIST_EN 0x00000400 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR_RBIST_RST 0x00002000 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_EEDI 0x00000001 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_EEDO 0x00000002 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_EECLK 0x00000004 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_EESEL 0x00000008 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_MDIO 0x00000010 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_MDDIR 0x00000020 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR_MDC 0x00000040 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXDESC3 0x40000000 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXDESC2 0x20000000 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXDESC1 0x10000000 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXDESC0 0x08000000 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXDESC3 0x04000000 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXDESC2 0x02000000 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXDESC1 0x01000000 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXDESC0 0x00800000 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXRCMP 0x00400000 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXRCMP 0x00200000 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_DPERR 0x00100000 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_SSERR 0x00080000 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RMABT 0x00040000 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RTABT 0x00020000 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXSOVR 0x00010000 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_HIBINT 0x00008000 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_PHY 0x00004000 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_PME 0x00002000 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_SWI 0x00001000 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_MIB 0x00000800 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXURN 0x00000400 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXIDLE 0x00000200 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXERR 0x00000100 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXDESC 0x00000080 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_TXOK 0x00000040 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXORN 0x00000020 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXIDLE 0x00000010 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXEARLY 0x00000008 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXERR 0x00000004 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXDESC 0x00000002 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR_RXOK 0x00000001 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_CSI 0x80000000 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_HBI 0x40000000 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MLB 0x20000000 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_ATP 0x10000000 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_ECRETRY 0x00800000 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_BRST_DIS 0x00080000 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA1024 0x00000000 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA512 0x00700000 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA256 0x00600000 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA128 0x00500000 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA64 0x00400000 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA32 0x00300000 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA16 0x00200000 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG_MXDMA8 0x00100000 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_LNKSTS 0x80000000 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_SPDSTS 0x60000000 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_SPDSTS1 0x40000000 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_SPDSTS0 0x20000000 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_DUPSTS 0x10000000 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_TBI_EN 0x01000000 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_MODE_1000 0x00400000 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Ramit : Dont' ever use AUTO_1000, it never works and is buggy. 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Read the Phy response and then configure the MAC accordingly */ 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_AUTO_1000 0x00200000 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PINT_CTL 0x001c0000 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PINT_DUPSTS 0x00100000 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PINT_LNKSTS 0x00080000 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PINT_SPDSTS 0x00040000 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_TMRTEST 0x00020000 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_MRM_DIS 0x00010000 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_MWI_DIS 0x00008000 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_T64ADDR 0x00004000 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PCI64_DET 0x00002000 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_DATA64_EN 0x00001000 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_M64ADDR 0x00000800 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PHY_RST 0x00000400 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PHY_DIS 0x00000200 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_EXTSTS_EN 0x00000100 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_REQALG 0x00000080 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_SB 0x00000040 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_POW 0x00000020 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_EXD 0x00000010 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_PESEL 0x00000008 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_BROM_DIS 0x00000004 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_EXT_125 0x00000002 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG_BEM 0x00000001 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EXTSTS_UDPPKT 0x00200000 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EXTSTS_TCPPKT 0x00080000 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EXTSTS_IPPKT 0x00020000 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EXTSTS_VPKT 0x00010000 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EXTSTS_VTG_MASK 0x0000ffff 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SPDSTS_POLARITY (CFG_SPDSTS1 | CFG_SPDSTS0 | CFG_DUPSTS | (lnksts ? CFG_LNKSTS : 0)) 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MIBC_MIBS 0x00000008 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MIBC_ACLR 0x00000004 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MIBC_FRZ 0x00000002 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MIBC_WRN 0x00000001 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_PSEN (1 << 31) 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_PS_MCAST (1 << 30) 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_PS_DA (1 << 29) 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_STHI_8 (3 << 23) 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_STLO_4 (1 << 23) 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_FFHI_8K (3 << 21) 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_FFLO_4K (1 << 21) 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR_PAUSE_CNT 0xFFFE 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_AEP 0x80000000 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_ARP 0x40000000 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_STRIPCRC 0x20000000 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_RX_FD 0x10000000 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_ALP 0x08000000 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_AIRL 0x04000000 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_MXDMA512 0x00700000 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_DRTH 0x0000003e 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG_DRTH0 0x00000002 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_RFEN 0x80000000 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_AAB 0x40000000 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_AAM 0x20000000 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_AAU 0x10000000 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_APM 0x08000000 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_APAT 0x07800000 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_APAT3 0x04000000 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_APAT2 0x02000000 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_APAT1 0x01000000 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_APAT0 0x00800000 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_AARP 0x00400000 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_MHEN 0x00200000 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_UHEN 0x00100000 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR_ULM 0x00080000 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_RUDPE 0x00000080 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_RTCPE 0x00000040 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_RIPE 0x00000020 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_IPEN 0x00000010 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_DUTF 0x00000008 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_DVTF 0x00000004 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_VTREN 0x00000002 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_VTDEN 0x00000001 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR_PPCHK 0x00000008 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR_GCHK 0x00000004 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR_VPPTI 0x00000002 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR_VGTI 0x00000001 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CR 0x00 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CFG 0x04 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MEAR 0x08 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PTSCR 0x0c 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ISR 0x10 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IMR 0x14 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IER 0x18 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IHR 0x1c 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXDP 0x20 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXDP_HI 0x24 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXCFG 0x28 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR 0x2c 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXDP 0x30 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXDP_HI 0x34 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXCFG 0x38 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PQCR 0x3c 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WCSR 0x40 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define PCR 0x44 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFCR 0x48 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RFDR 0x4c 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SRR 0x58 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR 0xbc 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR 0xc0 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VDR 0xc4 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CCSR 0xcc 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TBICR 0xe0 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TBISR 0xe4 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANAR 0xe8 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANLPAR 0xec 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANER 0xf0 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TESR 0xf4 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TBICR_MR_AN_ENABLE 0x00001000 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TBICR_MR_RESTART_AN 0x00000200 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TBISR_MR_LINK_STATUS 0x00000020 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TBISR_MR_AN_COMPLETE 0x00000004 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANAR_PS2 0x00000100 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANAR_PS1 0x00000080 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANAR_HALF_DUP 0x00000040 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TANAR_FULL_DUP 0x00000020 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP5_OE 0x00000200 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP4_OE 0x00000100 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP3_OE 0x00000080 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP2_OE 0x00000040 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP1_OE 0x00000020 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP3_OUT 0x00000004 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GPIOR_GP1_OUT 0x00000001 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LINK_AUTONEGOTIATE 0x01 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LINK_DOWN 0x02 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LINK_UP 0x04 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3816aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik#define HW_ADDR_LEN sizeof(dma_addr_t) 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define desc_addr_set(desc, addr) \ 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { \ 384c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise ((desc)[0] = cpu_to_le32(addr)); \ 385c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise if (HW_ADDR_LEN == 8) \ 386c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise (desc)[1] = cpu_to_le32(((u64)addr) >> 32); \ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while(0) 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define desc_addr_get(desc) \ 389c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise (le32_to_cpu((desc)[0]) | \ 390c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise (HW_ADDR_LEN == 8 ? ((dma_addr_t)le32_to_cpu((desc)[1]))<<32 : 0)) 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DESC_LINK 0 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DESC_BUFPTR (DESC_LINK + HW_ADDR_LEN/4) 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DESC_CMDSTS (DESC_BUFPTR + HW_ADDR_LEN/4) 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DESC_EXTSTS (DESC_CMDSTS + 4/4) 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_OWN 0x80000000 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_MORE 0x40000000 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_INTR 0x20000000 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_ERR 0x10000000 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_OK 0x08000000 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_RUNT 0x00200000 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_LEN_MASK 0x0000ffff 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_DEST_MASK 0x01800000 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_DEST_SELF 0x00800000 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CMDSTS_DEST_MULTI 0x01000000 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DESC_SIZE 8 /* Should be cache line sized */ 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct rx_info { 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t lock; 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int up; 4145d7dce76c51a590fdd7616285a96825aa517ede0Hannes Eder unsigned long idle; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skbs[NR_RX_DESC]; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 418c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *next_rx_desc; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 next_rx, next_empty; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *descs; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t phy_descs; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ns83820 { 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 __iomem *base; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *pci_dev; 430c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct net_device *ndev; 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rx_info rx_info; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tasklet_struct rx_tasklet; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned ihr; 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct work_struct tq_refill; 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* protects everything below. irqsave when using. */ 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t misc_lock; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 CFG_cache; 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 MEAR_cache; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 IMR_cache; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned linkstate; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t tx_lock; 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tx_done_idx; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tx_idx; 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 tx_free_idx; /* idx of free desc chain */ 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tx_intr_idx; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_t nr_tx_skbs; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *tx_skbs[NR_TX_DESC]; 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char pad[16] __attribute__((aligned(16))); 459c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *tx_descs; 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t tx_phy_descs; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct timer_list tx_watchdog; 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline struct ns83820 *PRIV(struct net_device *dev) 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return netdev_priv(dev); 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define __kick_rx(dev) writel(CR_RXE, dev->base + CR) 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void kick_rx(struct net_device *ndev) 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("kick_rx: maybe kicking\n"); 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_and_clear_bit(0, &dev->rx_info.idle)) { 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("actually kicking\n"); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->rx_info.phy_descs + 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (4 * DESC_SIZE * dev->rx_info.next_rx), 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + RXDP); 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->rx_info.next_rx == dev->rx_info.next_empty) 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_DEBUG "%s: uh-oh: next_rx == next_empty???\n", 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name); 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __kick_rx(dev); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds//free = (tx_done_idx + NR_TX_DESC-2 - free_idx) % NR_TX_DESC 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define start_tx_okay(dev) \ 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (((NR_TX_DESC-2 + dev->tx_done_idx - dev->tx_free_idx) % NR_TX_DESC) > MIN_TX_DESC_FREE) 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Packet Receiver 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The hardware supports linked lists of receive descriptors for 49525985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * which ownership is transferred back and forth by means of an 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ownership bit. While the hardware does support the use of a 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ring for receive descriptors, we only make use of a chain in 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * an attempt to reduce bus traffic under heavy load scenarios. 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This will also make bugs a bit more obvious. The current code 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * only makes use of a single rx chain; I hope to implement 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * priority based rx for version 1.0. Goal: even under overload 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * conditions, still route realtime traffic with as low jitter as 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * possible. 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 505c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Virostatic inline void build_rx_desc(struct ns83820 *dev, __le32 *desc, dma_addr_t link, dma_addr_t buf, u32 cmdsts, u32 extsts) 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc_addr_set(desc + DESC_LINK, link); 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc_addr_set(desc + DESC_BUFPTR, buf); 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc[DESC_EXTSTS] = cpu_to_le32(extsts); 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mb(); 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc[DESC_CMDSTS] = cpu_to_le32(cmdsts); 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define nr_rx_empty(dev) ((NR_RX_DESC-2 + dev->rx_info.next_rx - dev->rx_info.next_empty) % NR_RX_DESC) 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int ns83820_add_rx_skb(struct ns83820 *dev, struct sk_buff *skb) 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned next_empty; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 cmdsts; 519c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *sg; 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t buf; 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next_empty = dev->rx_info.next_empty; 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* don't overrun last rx marker */ 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(nr_rx_empty(dev) <= 2)) { 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree_skb(skb); 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if 0 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("next_empty[%d] nr_used[%d] next_rx[%d]\n", 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.next_empty, 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.nr_used, 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.next_rx 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ); 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sg = dev->rx_info.descs + (next_empty * DESC_SIZE); 5395d9428de1a9785f10a4339f80b717be665ba51c7Eric Sesterhenn BUG_ON(NULL != dev->rx_info.skbs[next_empty]); 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.skbs[next_empty] = skb; 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.next_empty = (next_empty + 1) % NR_RX_DESC; 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmdsts = REAL_RX_BUF_SIZE | CMDSTS_INTR; 544689be43945e9ca7dd704522e55af1b8a73a994d3David S. Miller buf = pci_map_single(dev->pci_dev, skb->data, 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds REAL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds build_rx_desc(dev, sg, 0, buf, cmdsts, 0); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* update link of previous rx */ 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (likely(next_empty != dev->rx_info.next_rx)) 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.descs[((NR_RX_DESC + next_empty - 1) % NR_RX_DESC) * DESC_SIZE] = cpu_to_le32(dev->rx_info.phy_descs + (next_empty * DESC_SIZE * 4)); 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 554dd0fc66fb33cd610bc1a5db8a5e232d34879b4d7Al Virostatic inline int rx_refill(struct net_device *ndev, gfp_t gfp) 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned i; 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags = 0; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(nr_rx_empty(dev) <= 2)) 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("rx_refill(%p)\n", ndev); 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (gfp == GFP_ATOMIC) 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&dev->rx_info.lock, flags); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<NR_RX_DESC; i++) { 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long res; 569e83728c7b0ce92e57aa90eb4fc271a29d7a393d5Stephen Hemminger 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* extra 16 bytes for alignment */ 571e83728c7b0ce92e57aa90eb4fc271a29d7a393d5Stephen Hemminger skb = __netdev_alloc_skb(ndev, REAL_RX_BUF_SIZE+16, gfp); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!skb)) 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 575e83728c7b0ce92e57aa90eb4fc271a29d7a393d5Stephen Hemminger skb_reserve(skb, skb->data - PTR_ALIGN(skb->data, 16)); 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (gfp != GFP_ATOMIC) 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&dev->rx_info.lock, flags); 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = ns83820_add_rx_skb(dev, skb); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (gfp != GFP_ATOMIC) 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&dev->rx_info.lock, flags); 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (res) { 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 1; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (gfp == GFP_ATOMIC) 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&dev->rx_info.lock, flags); 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i ? 0 : -ENOMEM; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5927eefb04eb0761ce220890975fe33b7c262612c0dDavid Millerstatic void rx_refill_atomic(struct net_device *ndev) 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_refill(ndev, GFP_ATOMIC); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* REFILL */ 598c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic inline void queue_refill(struct work_struct *work) 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 600c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct ns83820 *dev = container_of(work, struct ns83820, tq_refill); 601c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct net_device *ndev = dev->ndev; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_refill(ndev, GFP_KERNEL); 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->rx_info.up) 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kick_rx(ndev); 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void clear_rx_desc(struct ns83820 *dev, unsigned i) 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds build_rx_desc(dev, dev->rx_info.descs + (DESC_SIZE * i), 0, 0, CMDSTS_OWN, 0); 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6137eefb04eb0761ce220890975fe33b7c262612c0dDavid Millerstatic void phy_intr(struct net_device *ndev) 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 616f71e130966ba429dbd24be08ddbcdf263df9a5adArjan van de Ven static const char *speeds[] = { "10", "100", "1000", "1000(?)", "1000F" }; 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 cfg, new_cfg; 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 tbisr, tanar, tanlpar; 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int speed, fullduplex, newlinkstate; 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cfg = readl(dev->base + CFG) ^ SPDSTS_POLARITY; 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->CFG_cache & CFG_TBI_EN) { 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* we have an optical transceiver */ 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tbisr = readl(dev->base + TBISR); 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tanar = readl(dev->base + TANAR); 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tanlpar = readl(dev->base + TANLPAR); 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("phy_intr: tbisr=%08x, tanar=%08x, tanlpar=%08x\n", 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tbisr, tanar, tanlpar); 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6318e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches if ( (fullduplex = (tanlpar & TANAR_FULL_DUP) && 6328e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches (tanar & TANAR_FULL_DUP)) ) { 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* both of us are full duplex */ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + TXCFG) 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | TXCFG_CSI | TXCFG_HBI | TXCFG_ATP, 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + TXCFG); 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + RXCFG) | RXCFG_RX_FD, 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + RXCFG); 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Light up full duplex LED */ 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + GPIOR) | GPIOR_GP1_OUT, 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + GPIOR); 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6448e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches } else if (((tanlpar & TANAR_HALF_DUP) && 6458e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches (tanar & TANAR_HALF_DUP)) || 6468e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches ((tanlpar & TANAR_FULL_DUP) && 6478e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches (tanar & TANAR_HALF_DUP)) || 6488e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches ((tanlpar & TANAR_HALF_DUP) && 6498e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches (tanar & TANAR_FULL_DUP))) { 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* one or both of us are half duplex */ 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel((readl(dev->base + TXCFG) 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds & ~(TXCFG_CSI | TXCFG_HBI)) | TXCFG_ATP, 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + TXCFG); 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + RXCFG) & ~RXCFG_RX_FD, 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + RXCFG); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Turn off full duplex LED */ 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + GPIOR) & ~GPIOR_GP1_OUT, 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + GPIOR); 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds speed = 4; /* 1000F */ 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* we have a copper transceiver */ 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_cfg = dev->CFG_cache & ~(CFG_SB | CFG_MODE_1000 | CFG_SPDSTS); 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cfg & CFG_SPDSTS1) 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_cfg |= CFG_MODE_1000; 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_cfg &= ~CFG_MODE_1000; 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds speed = ((cfg / CFG_SPDSTS0) & 3); 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fullduplex = (cfg & CFG_DUPSTS); 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 676c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise if (fullduplex) { 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_cfg |= CFG_SB; 678c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise writel(readl(dev->base + TXCFG) 679c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise | TXCFG_CSI | TXCFG_HBI, 680c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise dev->base + TXCFG); 681c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise writel(readl(dev->base + RXCFG) | RXCFG_RX_FD, 682c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise dev->base + RXCFG); 683c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise } else { 684c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise writel(readl(dev->base + TXCFG) 685c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise & ~(TXCFG_CSI | TXCFG_HBI), 686c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise dev->base + TXCFG); 687c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise writel(readl(dev->base + RXCFG) & ~(RXCFG_RX_FD), 688c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise dev->base + RXCFG); 689c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise } 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((cfg & CFG_LNKSTS) && 692c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise ((new_cfg ^ dev->CFG_cache) != 0)) { 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(new_cfg, dev->base + CFG); 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache = new_cfg; 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache &= ~CFG_SPDSTS; 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= cfg & CFG_SPDSTS; 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds newlinkstate = (cfg & CFG_LNKSTS) ? LINK_UP : LINK_DOWN; 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7038e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches if (newlinkstate & LINK_UP && 7048e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches dev->linkstate != newlinkstate) { 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_start_queue(ndev); 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(ndev); 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: link now %s mbps, %s duplex and up.\n", 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds speeds[speed], 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fullduplex ? "full" : "half"); 7118e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches } else if (newlinkstate & LINK_DOWN && 7128e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches dev->linkstate != newlinkstate) { 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(ndev); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: link now down.\n", ndev->name); 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->linkstate = newlinkstate; 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ns83820_setup_rx(struct net_device *ndev) 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned i; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("ns83820_setup_rx(%p)\n", ndev); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.idle = 1; 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.next_rx = 0; 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.next_rx_desc = dev->rx_info.descs; 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.next_empty = 0; 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<NR_RX_DESC; i++) 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_rx_desc(dev, i); 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + RXDP_HI); 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->rx_info.phy_descs, dev->base + RXDP); 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = rx_refill(ndev, GFP_KERNEL); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) { 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("starting receiver\n"); 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* prevent the interrupt handler from stomping on us */ 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&dev->rx_info.lock); 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0x0001, dev->base + CCSR); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + RFCR); 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0x7fc00000, dev->base + RFCR); 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0xffc00000, dev->base + RFCR); 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.up = 1; 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds phy_intr(ndev); 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Okay, let it rip */ 755cdd861d68d27a0d0ebe4e641d20d8cfa5cef405fDan Carpenter spin_lock(&dev->misc_lock); 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_PHY; 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_RXRCMP; 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //dev->IMR_cache |= ISR_RXERR; 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //dev->IMR_cache |= ISR_RXOK; 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_RXORN; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_RXSOVR; 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_RXDESC; 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_RXIDLE; 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_TXDESC; 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_TXIDLE; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->IMR_cache, dev->base + IMR); 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(1, dev->base + IER); 7693a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock(&dev->misc_lock); 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kick_rx(ndev); 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&dev->rx_info.lock); 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_cleanup_rx(struct ns83820 *dev) 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned i; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("ns83820_cleanup_rx(%p)\n", dev); 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* disable receive interrupts */ 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&dev->misc_lock, flags); 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache &= ~(ISR_RXOK | ISR_RXDESC | ISR_RXERR | ISR_RXEARLY | ISR_RXIDLE); 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->IMR_cache, dev->base + IMR); 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&dev->misc_lock, flags); 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* synchronize with the interrupt handler and kill it */ 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.up = 0; 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds synchronize_irq(dev->pci_dev->irq); 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* touch the pci bus... */ 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds readl(dev->base + IMR); 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* assumes the transmitter is already disabled and reset */ 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + RXDP_HI); 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + RXDP); 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<NR_RX_DESC; i++) { 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb = dev->rx_info.skbs[i]; 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.skbs[i] = NULL; 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_rx_desc(dev, i); 806893d7de7c319b31626816e2095492003cc2df2a6Wei Yongjun kfree_skb(skb); 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8107eefb04eb0761ce220890975fe33b7c262612c0dDavid Millerstatic void ns83820_rx_kick(struct net_device *ndev) 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /*if (nr_rx_empty(dev) >= NR_RX_DESC/4)*/ { 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->rx_info.up) { 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_refill_atomic(ndev); 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kick_rx(ndev); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->rx_info.up && nr_rx_empty(dev) > NR_RX_DESC*3/4) 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule_work(&dev->tq_refill); 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kick_rx(ndev); 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->rx_info.idle) 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_DEBUG "%s: BAD\n", ndev->name); 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* rx_irq 8296aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8317eefb04eb0761ce220890975fe33b7c262612c0dDavid Millerstatic void rx_irq(struct net_device *ndev) 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rx_info *info = &dev->rx_info; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned next_rx; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_rc, len; 837c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro u32 cmdsts; 838c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *desc; 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int nr = 0; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("rx_irq(%p)\n", ndev); 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("rxdp: %08x, descs: %08lx next_rx[%d]: %p next_empty[%d]: %p\n", 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds readl(dev->base + RXDP), 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long)(dev->rx_info.phy_descs), 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (int)dev->rx_info.next_rx, 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (dev->rx_info.descs + (DESC_SIZE * dev->rx_info.next_rx)), 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (int)dev->rx_info.next_empty, 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (dev->rx_info.descs + (DESC_SIZE * dev->rx_info.next_empty)) 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ); 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&info->lock, flags); 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!info->up) 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("walking descs\n"); 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next_rx = info->next_rx; 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = info->next_rx_desc; 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((CMDSTS_OWN & (cmdsts = le32_to_cpu(desc[DESC_CMDSTS]))) && 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmdsts != CMDSTS_OWN)) { 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 extsts = le32_to_cpu(desc[DESC_EXTSTS]); 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t bufptr = desc_addr_get(desc + DESC_BUFPTR); 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("cmdsts: %08x\n", cmdsts); 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("link: %08x\n", cpu_to_le32(desc[DESC_LINK])); 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("extsts: %08x\n", extsts); 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb = info->skbs[next_rx]; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->skbs[next_rx] = NULL; 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->next_rx = (next_rx + 1) % NR_RX_DESC; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mb(); 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_rx_desc(dev, next_rx); 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_single(dev->pci_dev, bufptr, 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds RX_BUF_SIZE, PCI_DMA_FROMDEVICE); 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = cmdsts & CMDSTS_LEN_MASK; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef NS83820_VLAN_ACCEL_SUPPORT 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NH: As was mentioned below, this chip is kinda 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * brain dead about vlan tag stripping. Frames 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that are 64 bytes with a vlan header appended 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * like arp frames, or pings, are flagged as Runts 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * when the tag is stripped and hardware. This 8856aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * also means that the OK bit in the descriptor 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is cleared when the frame comes in so we have 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to do a specific length check here to make sure 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the frame would have been ok, had we not stripped 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the tag. 8906aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik */ 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (likely((CMDSTS_OK & cmdsts) || 8926aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik ((cmdsts & CMDSTS_RUNT) && len >= 56))) { 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (likely(CMDSTS_OK & cmdsts)) { 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb_put(skb, len); 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!skb)) 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto netdev_mangle_me_harder_failed; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmdsts & CMDSTS_DEST_MULTI) 900e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.multicast++; 901e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_packets++; 902e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_bytes += len; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((extsts & 0x002a0000) && !(extsts & 0x00540000)) { 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->ip_summed = CHECKSUM_UNNECESSARY; 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 906bc8acf2c8c3e43fcc192762a9f964b3e9a17748bEric Dumazet skb_checksum_none_assert(skb); 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = eth_type_trans(skb, ndev); 9096aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik#ifdef NS83820_VLAN_ACCEL_SUPPORT 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(extsts & EXTSTS_VPKT) { 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short tag; 912a4f676b80f9ca2a76cb27b8378343a5f4f972d3fJiri Pirko 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tag = ntohs(extsts & EXTSTS_VTG_MASK); 914a4f676b80f9ca2a76cb27b8378343a5f4f972d3fJiri Pirko __vlan_hwaccel_put_tag(skb, tag); 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 917a4f676b80f9ca2a76cb27b8378343a5f4f972d3fJiri Pirko rx_rc = netif_rx(skb); 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (NET_RX_DROP == rx_rc) { 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsnetdev_mangle_me_harder_failed: 920e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_dropped++; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree_skb(skb); 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nr++; 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next_rx = info->next_rx; 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = info->descs + (DESC_SIZE * next_rx); 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->next_rx = next_rx; 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->next_rx_desc = info->descs + (DESC_SIZE * next_rx); 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (0 && !nr) { 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Dprintk("dazed: cmdsts_f: %08x\n", cmdsts); 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&info->lock, flags); 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void rx_action(unsigned long _dev) 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *ndev = (void *)_dev; 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_irq(ndev); 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(ihr, dev->base + IHR); 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&dev->misc_lock); 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_RXDESC; 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->IMR_cache, dev->base + IMR); 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&dev->misc_lock); 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_irq(ndev); 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_rx_kick(ndev); 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Packet Transmit code 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void kick_tx(struct ns83820 *dev) 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("kick_tx(%p): tx_idx=%d free_idx=%d\n", 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev, dev->tx_idx, dev->tx_free_idx); 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(CR_TXE, dev->base + CR); 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* No spinlock needed on the transmit irq path as the interrupt handler is 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * serialized. 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void do_tx_done(struct net_device *ndev) 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 972c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro u32 cmdsts, tx_done_idx; 973c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *desc; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("do_tx_done(%p)\n", ndev); 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx = dev->tx_done_idx; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = dev->tx_descs + (tx_done_idx * DESC_SIZE); 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("tx_done_idx=%d free_idx=%d cmdsts=%08x\n", 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx, dev->tx_free_idx, le32_to_cpu(desc[DESC_CMDSTS])); 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((tx_done_idx != dev->tx_free_idx) && 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !(CMDSTS_OWN & (cmdsts = le32_to_cpu(desc[DESC_CMDSTS]))) ) { 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned len; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t addr; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmdsts & CMDSTS_ERR) 988e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.tx_errors++; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmdsts & CMDSTS_OK) 990e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.tx_packets++; 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmdsts & CMDSTS_OK) 992e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.tx_bytes += cmdsts & 0xffff; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("tx_done_idx=%d free_idx=%d cmdsts=%08x\n", 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx, dev->tx_free_idx, cmdsts); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb = dev->tx_skbs[tx_done_idx]; 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_skbs[tx_done_idx] = NULL; 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("done(%p)\n", skb); 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = cmdsts & CMDSTS_LEN_MASK; 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = desc_addr_get(desc + DESC_BUFPTR); 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (skb) { 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_single(dev->pci_dev, 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr, 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len, 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_DMA_TODEVICE); 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb_irq(skb); 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&dev->nr_tx_skbs); 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 10106aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik pci_unmap_page(dev->pci_dev, 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr, 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len, 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_DMA_TODEVICE); 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx = (tx_done_idx + 1) % NR_TX_DESC; 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_done_idx = tx_done_idx; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc[DESC_CMDSTS] = cpu_to_le32(0); 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mb(); 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = dev->tx_descs + (tx_done_idx * DESC_SIZE); 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Allow network stack to resume queueing packets after we've 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * finished transmitting at least 1/4 of the packets in the queue. 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (netif_queue_stopped(ndev) && start_tx_okay(dev)) { 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("start_queue(%p)\n", ndev); 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_start_queue(ndev); 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(ndev); 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_cleanup_tx(struct ns83820 *dev) 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned i; 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<NR_TX_DESC; i++) { 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb = dev->tx_skbs[i]; 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_skbs[i] = NULL; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (skb) { 1040c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *desc = dev->tx_descs + (i * DESC_SIZE); 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unmap_single(dev->pci_dev, 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc_addr_get(desc + DESC_BUFPTR), 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds le32_to_cpu(desc[DESC_CMDSTS]) & CMDSTS_LEN_MASK, 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_DMA_TODEVICE); 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb_irq(skb); 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&dev->nr_tx_skbs); 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(dev->tx_descs, 0, NR_TX_DESC * DESC_SIZE * 4); 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* transmit routine. This code relies on the network layer serializing 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * its calls in, but will run happily in parallel with the interrupt 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * handler. This code currently has provisions for fragmenting tx buffers 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * while trying to track down a bug in either the zero copy code or 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the tx fifo (hence the MAX_FRAG_LEN). 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 105961357325f377889a1daffa14962d705dc814dd0eStephen Hemmingerstatic netdev_tx_t ns83820_hard_start_xmit(struct sk_buff *skb, 106061357325f377889a1daffa14962d705dc814dd0eStephen Hemminger struct net_device *ndev) 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 free_idx, cmdsts, extsts; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int nr_free, nr_frags; 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned tx_done_idx, last_idx; 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t buf; 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned len; 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb_frag_t *frag; 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int stopped = 0; 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int do_intr = 0; 1071c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro volatile __le32 *first_desc; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("ns83820_hard_start_xmit\n"); 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nr_frags = skb_shinfo(skb)->nr_frags; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsagain: 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(dev->CFG_cache & CFG_LNKSTS)) { 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(ndev); 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(dev->CFG_cache & CFG_LNKSTS)) 10805b548140225c6bbbbd560551dd1048b2c0ce58bePatrick McHardy return NETDEV_TX_BUSY; 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_start_queue(ndev); 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds last_idx = free_idx = dev->tx_free_idx; 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx = dev->tx_done_idx; 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nr_free = (tx_done_idx + NR_TX_DESC-2 - free_idx) % NR_TX_DESC; 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nr_free -= 1; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nr_free <= nr_frags) { 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("stop_queue - not enough(%p)\n", ndev); 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(ndev); 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check again: we may have raced with a tx done irq */ 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->tx_done_idx != tx_done_idx) { 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("restart queue(%p)\n", ndev); 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_start_queue(ndev); 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto again; 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10985b548140225c6bbbbd560551dd1048b2c0ce58bePatrick McHardy return NETDEV_TX_BUSY; 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (free_idx == dev->tx_intr_idx) { 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_intr = 1; 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_intr_idx = (dev->tx_intr_idx + NR_TX_DESC/4) % NR_TX_DESC; 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nr_free -= nr_frags; 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nr_free < MIN_TX_DESC_FREE) { 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("stop_queue - last entry(%p)\n", ndev); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(ndev); 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stopped = 1; 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds frag = skb_shinfo(skb)->frags; 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!nr_frags) 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds frag = NULL; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extsts = 0; 111784fa7933a33f806bbbaae6775e87459b1ec584c0Patrick McHardy if (skb->ip_summed == CHECKSUM_PARTIAL) { 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extsts |= EXTSTS_IPPKT; 1119eddc9ec53be2ecdbf4efe0efd4a83052594f0ac0Arnaldo Carvalho de Melo if (IPPROTO_TCP == ip_hdr(skb)->protocol) 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extsts |= EXTSTS_TCPPKT; 1121eddc9ec53be2ecdbf4efe0efd4a83052594f0ac0Arnaldo Carvalho de Melo else if (IPPROTO_UDP == ip_hdr(skb)->protocol) 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extsts |= EXTSTS_UDPPKT; 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef NS83820_VLAN_ACCEL_SUPPORT 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(vlan_tx_tag_present(skb)) { 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fetch the vlan tag info out of the 112825985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * ancillary data if the vlan code 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is using hw vlan acceleration 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds short tag = vlan_tx_tag_get(skb); 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extsts |= (EXTSTS_VPKT | htons(tag)); 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = skb->len; 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nr_frags) 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len -= skb->data_len; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf = pci_map_single(dev->pci_dev, skb->data, len, PCI_DMA_TODEVICE); 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first_desc = dev->tx_descs + (free_idx * DESC_SIZE); 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (;;) { 1144c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro volatile __le32 *desc = dev->tx_descs + (free_idx * DESC_SIZE); 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("frag[%3u]: %4u @ 0x%08Lx\n", free_idx, len, 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long long)buf); 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds last_idx = free_idx; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_idx = (free_idx + 1) % NR_TX_DESC; 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc[DESC_LINK] = cpu_to_le32(dev->tx_phy_descs + (free_idx * DESC_SIZE * 4)); 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc_addr_set(desc + DESC_BUFPTR, buf); 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc[DESC_EXTSTS] = cpu_to_le32(extsts); 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1154c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise cmdsts = ((nr_frags) ? CMDSTS_MORE : do_intr ? CMDSTS_INTR : 0); 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmdsts |= (desc == first_desc) ? 0 : CMDSTS_OWN; 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmdsts |= len; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc[DESC_CMDSTS] = cpu_to_le32(cmdsts); 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!nr_frags) 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1162bc516c8f9d35e42dec463dc5c6e1f1202c730fd4Ian Campbell buf = skb_frag_dma_map(&dev->pci_dev->dev, frag, 0, 11639e903e085262ffbf1fc44a17ac06058aca03524aEric Dumazet skb_frag_size(frag), DMA_TO_DEVICE); 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("frag: buf=%08Lx page=%08lx offset=%08lx\n", 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long long)buf, (long) page_to_pfn(frag->page), 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds frag->page_offset); 11679e903e085262ffbf1fc44a17ac06058aca03524aEric Dumazet len = skb_frag_size(frag); 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds frag++; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nr_frags--; 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("done pkt\n"); 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&dev->tx_lock); 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_skbs[last_idx] = skb; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first_desc[DESC_CMDSTS] |= cpu_to_le32(CMDSTS_OWN); 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_free_idx = free_idx; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&dev->nr_tx_skbs); 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&dev->tx_lock); 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kick_tx(dev); 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check again: we may have raced with a tx done irq */ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (stopped && (dev->tx_done_idx != tx_done_idx) && start_tx_okay(dev)) 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_start_queue(ndev); 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1186cdd0db058d64f2619b08e7d098ee0014aa0a5bc1Eric Dumazet return NETDEV_TX_OK; 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_update_stats(struct ns83820 *dev) 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1191e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy struct net_device *ndev = dev->ndev; 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 __iomem *base = dev->base; 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* the DP83820 will freeze counters, so we need to read all of them */ 1195e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_errors += readl(base + 0x60) & 0xffff; 1196e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_crc_errors += readl(base + 0x64) & 0xffff; 1197e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_missed_errors += readl(base + 0x68) & 0xffff; 1198e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_frame_errors += readl(base + 0x6c) & 0xffff; 1199e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy /*ndev->stats.rx_symbol_errors +=*/ readl(base + 0x70); 1200e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_length_errors += readl(base + 0x74) & 0xffff; 1201e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_length_errors += readl(base + 0x78) & 0xffff; 1202e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy /*ndev->stats.rx_badopcode_errors += */ readl(base + 0x7c); 1203e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy /*ndev->stats.rx_pause_count += */ readl(base + 0x80); 1204e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy /*ndev->stats.tx_pause_count += */ readl(base + 0x84); 1205e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.tx_carrier_errors += readl(base + 0x88) & 0xff; 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct net_device_stats *ns83820_get_stats(struct net_device *ndev) 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* somewhat overkill */ 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&dev->misc_lock); 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_update_stats(dev); 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&dev->misc_lock); 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1217e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy return &ndev->stats; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 122010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik/* Let ethtool retrieve info */ 122110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzikstatic int ns83820_get_settings(struct net_device *ndev, 122210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik struct ethtool_cmd *cmd) 122310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik{ 122410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik struct ns83820 *dev = PRIV(ndev); 122510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik u32 cfg, tanar, tbicr; 122610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik int fullduplex = 0; 122710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 122810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* 122910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * Here's the list of available ethtool commands from other drivers: 123010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->advertising = 1231707394972093e2056e1e8cc39be19cf9bcb3e7b3David Decotigny * ethtool_cmd_speed_set(cmd, ...) 123210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->duplex = 123310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->port = 0; 123410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->phy_address = 123510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->transceiver = 0; 123610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->autoneg = 123710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->maxtxpkt = 0; 123810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik * cmd->maxrxpkt = 0; 123910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik */ 124010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 124110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* read current configuration */ 124210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cfg = readl(dev->base + CFG) ^ SPDSTS_POLARITY; 124310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik tanar = readl(dev->base + TANAR); 124410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik tbicr = readl(dev->base + TBICR); 124510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 12467457e911c72eb0041b007943b0a29aab5a1c4a39Denis Kirjanov fullduplex = (cfg & CFG_DUPSTS) ? 1 : 0; 124710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 124810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cmd->supported = SUPPORTED_Autoneg; 124910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 125010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (dev->CFG_cache & CFG_TBI_EN) { 12513c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov /* we have optical interface */ 125210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cmd->supported |= SUPPORTED_1000baseT_Half | 125310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik SUPPORTED_1000baseT_Full | 125410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik SUPPORTED_FIBRE; 125510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cmd->port = PORT_FIBRE; 12563c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov } else { 12573c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov /* we have copper */ 12583c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov cmd->supported |= SUPPORTED_10baseT_Half | 12593c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | 12603c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | 12613c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov SUPPORTED_1000baseT_Full | 12623c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov SUPPORTED_MII; 12633c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov cmd->port = PORT_MII; 12643c083edc6d0d53a050672b15e3594d07d81b42e5Denis Kirjanov } 126510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 126610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cmd->duplex = fullduplex ? DUPLEX_FULL : DUPLEX_HALF; 126710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik switch (cfg / CFG_SPDSTS0 & 3) { 126810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik case 2: 1269707394972093e2056e1e8cc39be19cf9bcb3e7b3David Decotigny ethtool_cmd_speed_set(cmd, SPEED_1000); 127010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik break; 127110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik case 1: 1272707394972093e2056e1e8cc39be19cf9bcb3e7b3David Decotigny ethtool_cmd_speed_set(cmd, SPEED_100); 127310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik break; 127410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik default: 1275707394972093e2056e1e8cc39be19cf9bcb3e7b3David Decotigny ethtool_cmd_speed_set(cmd, SPEED_10); 127610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik break; 127710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 1278a5d31e0faf025ca8f64b85fc6938b702105725b7Denis Kirjanov cmd->autoneg = (tbicr & TBICR_MR_AN_ENABLE) 1279a5d31e0faf025ca8f64b85fc6938b702105725b7Denis Kirjanov ? AUTONEG_ENABLE : AUTONEG_DISABLE; 128010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik return 0; 128110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik} 128210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 128310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik/* Let ethool change settings*/ 128410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzikstatic int ns83820_set_settings(struct net_device *ndev, 128510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik struct ethtool_cmd *cmd) 128610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik{ 128710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik struct ns83820 *dev = PRIV(ndev); 128810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik u32 cfg, tanar; 128910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik int have_optical = 0; 129010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik int fullduplex = 0; 129110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 129210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* read current configuration */ 129310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cfg = readl(dev->base + CFG) ^ SPDSTS_POLARITY; 129410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik tanar = readl(dev->base + TANAR); 129510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 129610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (dev->CFG_cache & CFG_TBI_EN) { 129710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* we have optical */ 129810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik have_optical = 1; 129910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik fullduplex = (tanar & TANAR_FULL_DUP); 130010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 130110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } else { 130210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* we have copper */ 130310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik fullduplex = cfg & CFG_DUPSTS; 130410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 130510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 130610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik spin_lock_irq(&dev->misc_lock); 130710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik spin_lock(&dev->tx_lock); 130810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 130910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* Set duplex */ 131010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (cmd->duplex != fullduplex) { 131110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (have_optical) { 131210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /*set full duplex*/ 131310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (cmd->duplex == DUPLEX_FULL) { 131410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* force full duplex */ 131510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik writel(readl(dev->base + TXCFG) 131610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik | TXCFG_CSI | TXCFG_HBI | TXCFG_ATP, 131710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik dev->base + TXCFG); 131810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik writel(readl(dev->base + RXCFG) | RXCFG_RX_FD, 131910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik dev->base + RXCFG); 132010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* Light up full duplex LED */ 132110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik writel(readl(dev->base + GPIOR) | GPIOR_GP1_OUT, 132210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik dev->base + GPIOR); 132310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } else { 132410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /*TODO: set half duplex */ 132510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 132610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 132710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } else { 132810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /*we have copper*/ 132910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* TODO: Set duplex for copper cards */ 133010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 133110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik printk(KERN_INFO "%s: Duplex set via ethtool\n", 133210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik ndev->name); 133310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 133410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 133510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* Set autonegotiation */ 133610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (1) { 133710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik if (cmd->autoneg == AUTONEG_ENABLE) { 133810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* restart auto negotiation */ 133910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik writel(TBICR_MR_AN_ENABLE | TBICR_MR_RESTART_AN, 134010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik dev->base + TBICR); 134110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik writel(TBICR_MR_AN_ENABLE, dev->base + TBICR); 134210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik dev->linkstate = LINK_AUTONEGOTIATE; 134310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 134410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik printk(KERN_INFO "%s: autoneg enabled via ethtool\n", 134510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik ndev->name); 134610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } else { 134710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik /* disable auto negotiation */ 134810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik writel(0x00000000, dev->base + TBICR); 134910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 135010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 135110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik printk(KERN_INFO "%s: autoneg %s via ethtool\n", ndev->name, 135210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik cmd->autoneg ? "ENABLED" : "DISABLED"); 135310096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik } 135410096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 135510096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik phy_intr(ndev); 135610096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik spin_unlock(&dev->tx_lock); 135710096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik spin_unlock_irq(&dev->misc_lock); 135810096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 135910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik return 0; 136010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik} 136110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik/* end ethtool get/set support -df */ 136210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_get_drvinfo(struct net_device *ndev, struct ethtool_drvinfo *info) 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 136668aad78c5023b8aa82da99b47f9d8cf40e8ca453Rick Jones strlcpy(info->driver, "ns83820", sizeof(info->driver)); 136768aad78c5023b8aa82da99b47f9d8cf40e8ca453Rick Jones strlcpy(info->version, VERSION, sizeof(info->version)); 136868aad78c5023b8aa82da99b47f9d8cf40e8ca453Rick Jones strlcpy(info->bus_info, pci_name(dev->pci_dev), sizeof(info->bus_info)); 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 ns83820_get_link(struct net_device *ndev) 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 cfg = readl(dev->base + CFG) ^ SPDSTS_POLARITY; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cfg & CFG_LNKSTS ? 1 : 0; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13787282d491ecaee9883233a0e27283c4c79486279aJeff Garzikstatic const struct ethtool_ops ops = { 137910096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik .get_settings = ns83820_get_settings, 138010096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik .set_settings = ns83820_set_settings, 138110096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik .get_drvinfo = ns83820_get_drvinfo, 138210096974adb6d62b9f8cf65c266632ea73040936Jeff Garzik .get_link = ns83820_get_link 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13851a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanovstatic inline void ns83820_disable_interrupts(struct ns83820 *dev) 13861a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov{ 13871a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov writel(0, dev->base + IMR); 13881a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov writel(0, dev->base + IER); 13891a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov readl(dev->base + IER); 13901a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov} 13911a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov 13923a10ccebe928691d16a001687552228d32ff7910Ingo Molnar/* this function is called in irq context from the ISR */ 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_mib_isr(struct ns83820 *dev) 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13953a10ccebe928691d16a001687552228d32ff7910Ingo Molnar unsigned long flags; 13963a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_lock_irqsave(&dev->misc_lock, flags); 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_update_stats(dev); 13983a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock_irqrestore(&dev->misc_lock, flags); 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_do_isr(struct net_device *ndev, u32 isr); 14027d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic irqreturn_t ns83820_irq(int foo, void *data) 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *ndev = data; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 isr; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("ns83820_irq(%p)\n", ndev); 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->ihr = 0; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds isr = readl(dev->base + ISR); 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("irq: %08x\n", isr); 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_do_isr(ndev, isr); 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_do_isr(struct net_device *ndev, u32 isr) 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 14203a10ccebe928691d16a001687552228d32ff7910Ingo Molnar unsigned long flags; 14213a10ccebe928691d16a001687552228d32ff7910Ingo Molnar 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef DEBUG 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (isr & ~(ISR_PHY | ISR_RXDESC | ISR_RXEARLY | ISR_RXOK | ISR_RXERR | ISR_TXIDLE | ISR_TXOK | ISR_TXDESC)) 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Dprintk("odd isr? 0x%08x\n", isr); 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ISR_RXIDLE & isr) { 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.idle = 1; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Dprintk("oh dear, we are idle\n"); 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_rx_kick(ndev); 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ISR_RXDESC | ISR_RXOK) & isr) { 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefetch(dev->rx_info.next_rx_desc); 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14363a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_lock_irqsave(&dev->misc_lock, flags); 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache &= ~(ISR_RXDESC | ISR_RXOK); 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->IMR_cache, dev->base + IMR); 14393a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock_irqrestore(&dev->misc_lock, flags); 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&dev->rx_tasklet); 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //rx_irq(ndev); 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //writel(4, dev->base + IHR); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ISR_RXIDLE | ISR_RXORN | ISR_RXDESC | ISR_RXOK | ISR_RXERR) & isr) 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_rx_kick(ndev); 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(ISR_RXSOVR & isr)) { 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //printk("overrun: rxsovr\n"); 1451e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_fifo_errors++; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(ISR_RXORN & isr)) { 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //printk("overrun: rxorn\n"); 1456e929bc330d4820559091a8ce32fea60848751297Kulikov Vasiliy ndev->stats.rx_fifo_errors++; 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ISR_RXRCMP & isr) && dev->rx_info.up) 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(CR_RXE, dev->base + CR); 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ISR_TXIDLE & isr) { 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 txdp; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txdp = readl(dev->base + TXDP); 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("txdp: %08x\n", txdp); 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txdp -= dev->tx_phy_descs; 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_idx = txdp / (DESC_SIZE * 4); 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->tx_idx >= NR_TX_DESC) { 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ALERT "%s: BUG -- txdp out of range\n", ndev->name); 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_idx = 0; 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* The may have been a race between a pci originated read 14736aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * and the descriptor update from the cpu. Just in case, 14746aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * kick the transmitter if the hardware thinks it is on a 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * different descriptor than we are. 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->tx_idx != dev->tx_free_idx) 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kick_tx(dev); 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Defer tx ring processing until more than a minimum amount of 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * work has accumulated 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ISR_TXDESC | ISR_TXIDLE | ISR_TXOK | ISR_TXERR) & isr) { 14853a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_lock_irqsave(&dev->tx_lock, flags); 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_tx_done(ndev); 14873a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock_irqrestore(&dev->tx_lock, flags); 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Disable TxOk if there are no outstanding tx packets. 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((dev->tx_done_idx == dev->tx_free_idx) && 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (dev->IMR_cache & ISR_TXOK)) { 14933a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_lock_irqsave(&dev->misc_lock, flags); 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache &= ~ISR_TXOK; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->IMR_cache, dev->base + IMR); 14963a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock_irqrestore(&dev->misc_lock, flags); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* The TxIdle interrupt can come in before the transmit has 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * completed. Normally we reap packets off of the combination 15026aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * of TxDesc and TxIdle and leave TxOk disabled (since it 15036aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * occurs on every packet), but when no further irqs of this 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * nature are expected, we must enable TxOk. 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ISR_TXIDLE & isr) && (dev->tx_done_idx != dev->tx_free_idx)) { 15073a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_lock_irqsave(&dev->misc_lock, flags); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache |= ISR_TXOK; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->IMR_cache, dev->base + IMR); 15103a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock_irqrestore(&dev->misc_lock, flags); 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* MIB interrupt: one of the statistics counters is about to overflow */ 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(ISR_MIB & isr)) 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mib_isr(dev); 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* PHY: Link up/down/negotiation state change */ 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(ISR_PHY & isr)) 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds phy_intr(ndev); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if 0 /* Still working on the interrupt mitigation strategy */ 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->ihr) 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->ihr, dev->base + IHR); 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_do_reset(struct ns83820 *dev, u32 which) 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Dprintk("resetting chip...\n"); 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(which, dev->base + CR); 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (readl(dev->base + CR) & which); 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Dprintk("okay!\n"); 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ns83820_stop(struct net_device *ndev) 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: protect against interrupt handler? */ 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer_sync(&dev->tx_watchdog); 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15441a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov ns83820_disable_interrupts(dev); 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.up = 0; 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds synchronize_irq(dev->pci_dev->irq); 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_do_reset(dev, CR_RST); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds synchronize_irq(dev->pci_dev->irq); 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&dev->misc_lock); 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache &= ~(ISR_TXURN | ISR_TXIDLE | ISR_TXERR | ISR_TXDESC | ISR_TXOK); 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&dev->misc_lock); 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_cleanup_rx(dev); 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_cleanup_tx(dev); 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_tx_timeout(struct net_device *ndev) 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 1566c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro u32 tx_done_idx; 1567c69fda4e181fe448c43c2e1cc7b3fa67263d88caAl Viro __le32 *desc; 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15703a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_lock_irqsave(&dev->tx_lock, flags); 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx = dev->tx_done_idx; 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = dev->tx_descs + (tx_done_idx * DESC_SIZE); 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: tx_timeout: tx_done_idx=%d free_idx=%d cmdsts=%08x\n", 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx, dev->tx_free_idx, le32_to_cpu(desc[DESC_CMDSTS])); 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(DEBUG) 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 isr; 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds isr = readl(dev->base + ISR); 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("irq: %08x imr: %08x\n", isr, dev->IMR_cache); 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_do_isr(ndev, isr); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_tx_done(ndev); 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx = dev->tx_done_idx; 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = dev->tx_descs + (tx_done_idx * DESC_SIZE); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: after: tx_done_idx=%d free_idx=%d cmdsts=%08x\n", 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_done_idx, dev->tx_free_idx, le32_to_cpu(desc[DESC_CMDSTS])); 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15973a10ccebe928691d16a001687552228d32ff7910Ingo Molnar spin_unlock_irqrestore(&dev->tx_lock, flags); 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_tx_watch(unsigned long data) 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *ndev = (void *)data; 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(DEBUG) 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("ns83820_tx_watch: %u %u %d\n", 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_done_idx, dev->tx_free_idx, atomic_read(&dev->nr_tx_skbs) 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ); 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611cdd0db058d64f2619b08e7d098ee0014aa0a5bc1Eric Dumazet if (time_after(jiffies, dev_trans_start(ndev) + 1*HZ) && 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_done_idx != dev->tx_free_idx) { 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_DEBUG "%s: ns83820_tx_watch: %u %u %d\n", 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_done_idx, dev->tx_free_idx, 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_read(&dev->nr_tx_skbs)); 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_tx_timeout(ndev); 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mod_timer(&dev->tx_watchdog, jiffies + 2*HZ); 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ns83820_open(struct net_device *ndev) 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned i; 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 desc; 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("ns83820_open\n"); 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + PQCR); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ns83820_setup_rx(ndev); 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret) 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed; 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(dev->tx_descs, 0, 4 * NR_TX_DESC * DESC_SIZE); 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<NR_TX_DESC; i++) { 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_descs[(i * DESC_SIZE) + DESC_LINK] 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds = cpu_to_le32( 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_phy_descs 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + ((i+1) % NR_TX_DESC) * DESC_SIZE * 4); 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_idx = 0; 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_done_idx = 0; 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = dev->tx_phy_descs; 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + TXDP_HI); 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(desc, dev->base + TXDP); 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_timer(&dev->tx_watchdog); 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_watchdog.data = (unsigned long)ndev; 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_watchdog.function = ns83820_tx_watch; 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mod_timer(&dev->tx_watchdog, jiffies + 2*HZ); 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_start_queue(ndev); /* FIXME: wait for phy to come up */ 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfailed: 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_stop(ndev); 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_getmac(struct ns83820 *dev, u8 *mac) 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned i; 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<3; i++) { 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 data; 167148888cc6120ff945675ef79a3ba2955afa0f5124Adrian Bunk 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Read from the perfect match memory: this is loaded by 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the chip from the EEPROM via the EELOAD self test. 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(i*2, dev->base + RFCR); 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data = readl(dev->base + RFDR); 167748888cc6120ff945675ef79a3ba2955afa0f5124Adrian Bunk 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *mac++ = data; 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *mac++ = data >> 8; 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ns83820_change_mtu(struct net_device *ndev, int new_mtu) 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (new_mtu > RX_BUF_SIZE) 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->mtu = new_mtu; 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_set_multicast(struct net_device *ndev) 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 __iomem *rfcr = dev->base + RFCR; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 and_mask = 0xffffffff; 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 or_mask = 0; 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 val; 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ndev->flags & IFF_PROMISC) 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds or_mask |= RFCR_AAU | RFCR_AAM; 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds and_mask &= ~(RFCR_AAU | RFCR_AAM); 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17044cd24eaf0c6ee7f0242e34ee77ec899f255e66b5Jiri Pirko if (ndev->flags & IFF_ALLMULTI || netdev_mc_count(ndev)) 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds or_mask |= RFCR_AAM; 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds and_mask &= ~RFCR_AAM; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&dev->misc_lock); 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = (readl(rfcr) & and_mask) | or_mask; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ramit : RFCR Write Fix doc says RFEN must be 0 modify other bits */ 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(val & ~RFCR_RFEN, rfcr); 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(val, rfcr); 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&dev->misc_lock); 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_run_bist(struct net_device *ndev, const char *name, u32 enable, u32 done, u32 fail) 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timed_out = 0; 1721ff5688ae1cedfb175b5ed0f319d03ad2e5ee005dMarcelo Feitoza Parisi unsigned long start; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 status; 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int loops = 0; 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("%s: start %s\n", ndev->name, name); 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds start = jiffies; 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(enable, dev->base + PTSCR); 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (;;) { 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds loops++; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = readl(dev->base + PTSCR); 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(status & enable)) 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & done) 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & fail) 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1739ff5688ae1cedfb175b5ed0f319d03ad2e5ee005dMarcelo Feitoza Parisi if (time_after_eq(jiffies, start + HZ)) { 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds timed_out = 1; 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17433173c8907ffb2c64456142da3df2bd0500bd59e0Nishanth Aravamudan schedule_timeout_uninterruptible(1); 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & fail) 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: %s failed! (0x%08x & 0x%08x)\n", 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, name, status, fail); 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (timed_out) 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: run_bist %s timed out! (%08x)\n", 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, name, status); 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("%s: done %s in %d loops\n", ndev->name, name, loops); 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef PHY_CODE_IS_FINISHED 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_mii_write_bit(struct ns83820 *dev, int bit) 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* drive MDC low */ 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache &= ~MEAR_MDC; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->MEAR_cache, dev->base + MEAR); 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds readl(dev->base + MEAR); 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* enable output, set bit */ 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache |= MEAR_MDDIR; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bit) 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache |= MEAR_MDIO; 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache &= ~MEAR_MDIO; 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* set the output bit */ 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->MEAR_cache, dev->base + MEAR); 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds readl(dev->base + MEAR); 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Wait. Max clock rate is 2.5MHz, this way we come in under 1MHz */ 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay(1); 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* drive MDC high causing the data bit to be latched */ 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache |= MEAR_MDC; 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->MEAR_cache, dev->base + MEAR); 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds readl(dev->base + MEAR); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Wait again... */ 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay(1); 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ns83820_mii_read_bit(struct ns83820 *dev) 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int bit; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* drive MDC low, disable output */ 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache &= ~MEAR_MDC; 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache &= ~MEAR_MDDIR; 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->MEAR_cache, dev->base + MEAR); 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds readl(dev->base + MEAR); 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Wait. Max clock rate is 2.5MHz, this way we come in under 1MHz */ 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay(1); 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* drive MDC high causing the data bit to be latched */ 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bit = (readl(dev->base + MEAR) & MEAR_MDIO) ? 1 : 0; 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->MEAR_cache |= MEAR_MDC; 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->MEAR_cache, dev->base + MEAR); 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Wait again... */ 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay(1); 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bit; 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned ns83820_mii_read_reg(struct ns83820 *dev, unsigned phy, unsigned reg) 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned data = 0; 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* read some garbage so that we eventually sync up */ 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<64; i++) 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_bit(dev); 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 0); /* start */ 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 1); 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 1); /* opcode read */ 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 0); 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* write out the phy address: 5 bits, msb first */ 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<5; i++) 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, phy & (0x10 >> i)); 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* write out the register address, 5 bits, msb first */ 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<5; i++) 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, reg & (0x10 >> i)); 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_bit(dev); /* turn around cycles */ 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_bit(dev); 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* read in the register data, 16 bits msb first */ 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<16; i++) { 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data <<= 1; 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data |= ns83820_mii_read_bit(dev); 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return data; 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned ns83820_mii_write_reg(struct ns83820 *dev, unsigned phy, unsigned reg, unsigned data) 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* read some garbage so that we eventually sync up */ 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<64; i++) 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_bit(dev); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 0); /* start */ 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 1); 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 0); /* opcode read */ 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, 1); 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* write out the phy address: 5 bits, msb first */ 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<5; i++) 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, phy & (0x10 >> i)); 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* write out the register address, 5 bits, msb first */ 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<5; i++) 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, reg & (0x10 >> i)); 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_bit(dev); /* turn around cycles */ 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_bit(dev); 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* read in the register data, 16 bits msb first */ 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; i<16; i++) 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_bit(dev, (data >> (15 - i)) & 1); 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return data; 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ns83820_probe_phy(struct net_device *ndev) 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static int first; 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MII_PHYIDR1 0x02 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MII_PHYIDR2 0x03 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if 0 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!first) { 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned tmp; 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_reg(dev, 1, 0x09); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_reg(dev, 1, 0x10, 0x0d3e); 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = ns83820_mii_read_reg(dev, 1, 0x00); 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_reg(dev, 1, 0x00, tmp | 0x8000); 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay(1300); 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_reg(dev, 1, 0x09); 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first = 1; 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=1; i<2; i++) { 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int j; 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned a, b; 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds a = ns83820_mii_read_reg(dev, i, MII_PHYIDR1); 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds b = ns83820_mii_read_reg(dev, i, MII_PHYIDR2); 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //printk("%s: phy %d: 0x%04x 0x%04x\n", 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // ndev->name, i, a, b); 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j=0; j<0x16; j+=4) { 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("%s: [0x%02x] %04x %04x %04x %04x\n", 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, j, 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_reg(dev, i, 0 + j), 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_reg(dev, i, 1 + j), 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_reg(dev, i, 2 + j), 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_read_reg(dev, i, 3 + j) 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ); 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned a, b; 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* read firmware version: memory addr is 0x8402 and 0x8403 */ 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_reg(dev, 1, 0x16, 0x000d); 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_reg(dev, 1, 0x1e, 0x810e); 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds a = ns83820_mii_read_reg(dev, 1, 0x1d); 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_reg(dev, 1, 0x16, 0x000d); 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_mii_write_reg(dev, 1, 0x1e, 0x810e); 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds b = ns83820_mii_read_reg(dev, 1, 0x1d); 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("version: 0x%04x 0x%04x\n", a, b); 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19326557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemmingerstatic const struct net_device_ops netdev_ops = { 19336557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_open = ns83820_open, 19346557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_stop = ns83820_stop, 19356557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_start_xmit = ns83820_hard_start_xmit, 19366557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_get_stats = ns83820_get_stats, 19376557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_change_mtu = ns83820_change_mtu, 1938afc4b13df143122f99a0eb10bfefb216c2806de0Jiri Pirko .ndo_set_rx_mode = ns83820_set_multicast, 19396557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_validate_addr = eth_validate_addr, 1940a4f676b80f9ca2a76cb27b8378343a5f4f972d3fJiri Pirko .ndo_set_mac_address = eth_mac_addr, 19416557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger .ndo_tx_timeout = ns83820_tx_timeout, 19426557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger}; 19436557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger 19446557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemmingerstatic int __devinit ns83820_init_one(struct pci_dev *pci_dev, 19456557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger const struct pci_device_id *id) 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *ndev; 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev; 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long addr; 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int using_dac = 0; 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* See if we can set the dma mask early on; failure is fatal. */ 1954910638ae7ed4be27d6af55f6c9b5bf54b838e78bMatthias Gehre if (sizeof(dma_addr_t) == 8 && 19556a35528a8346f6e6fd32ed7e51f04d1fa4ca2c01Yang Hongyang !pci_set_dma_mask(pci_dev, DMA_BIT_MASK(64))) { 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds using_dac = 1; 1957284901a90a9e0b812ca3f5f852cbbfb60d10249dYang Hongyang } else if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) { 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds using_dac = 0; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19609b91cf9daac41eeaaea57ecfe68dc13bb0305fa9Jeff Garzik dev_warn(&pci_dev->dev, "pci_set_dma_mask failed!\n"); 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev = alloc_etherdev(sizeof(struct ns83820)); 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENOMEM; 19661956cc52e73984a39252994f0beee458fc0d8909Jesper Juhl if (!ndev) 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19691956cc52e73984a39252994f0beee458fc0d8909Jesper Juhl dev = PRIV(ndev); 1970d14e37e12087e98b63907518dff83a90297605d6Adrian Bunk dev->ndev = ndev; 1971d14e37e12087e98b63907518dff83a90297605d6Adrian Bunk 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&dev->rx_info.lock); 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&dev->tx_lock); 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&dev->misc_lock); 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->pci_dev = pci_dev; 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SET_NETDEV_DEV(ndev, &pci_dev->dev); 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1979c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&dev->tq_refill, queue_refill); 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_init(&dev->rx_tasklet, rx_action, (unsigned long)ndev); 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = pci_enable_device(pci_dev); 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) { 19849b91cf9daac41eeaaea57ecfe68dc13bb0305fa9Jeff Garzik dev_info(&pci_dev->dev, "pci_enable_dev failed: %d\n", err); 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_free; 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_master(pci_dev); 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = pci_resource_start(pci_dev, 1); 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base = ioremap_nocache(addr, PAGE_SIZE); 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_descs = pci_alloc_consistent(pci_dev, 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4 * DESC_SIZE * NR_TX_DESC, &dev->tx_phy_descs); 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.descs = pci_alloc_consistent(pci_dev, 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4 * DESC_SIZE * NR_RX_DESC, &dev->rx_info.phy_descs); 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENOMEM; 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!dev->base || !dev->tx_descs || !dev->rx_info.descs) 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_disable; 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("%p: %08lx %p: %08lx\n", 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_descs, (long)dev->tx_phy_descs, 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.descs, (long)dev->rx_info.phy_descs); 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20031a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov ns83820_disable_interrupts(dev); 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->IMR_cache = 0; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20071fb9df5d3069064c037c81c0ab8bf783ffa5e373Thomas Gleixner err = request_irq(pci_dev->irq, ns83820_irq, IRQF_SHARED, 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DRV_NAME, ndev); 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) { 20109b91cf9daac41eeaaea57ecfe68dc13bb0305fa9Jeff Garzik dev_info(&pci_dev->dev, "unable to register irq %d, err %d\n", 20112e8a538d865de0eb9813c8a0f2284e920299c0ccJeff Garzik pci_dev->irq, err); 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_disable; 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: we are holding rtnl_lock() over obscenely long area only 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * because some of the setup code uses dev->name. It's Wrong(tm) - 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we should be using driver-specific names for all that stuff. 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For now that will do, but we really need to come back and kill 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * most of the dev_alloc_name() users later. 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rtnl_lock(); 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = dev_alloc_name(ndev, ndev->name); 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 20259b91cf9daac41eeaaea57ecfe68dc13bb0305fa9Jeff Garzik dev_info(&pci_dev->dev, "unable to get netdev name: %d\n", err); 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_free_irq; 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("%s: ns83820.c: 0x22c: %08x, subsystem: %04x:%04x\n", 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, le32_to_cpu(readl(dev->base + 0x22c)), 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_dev->subsystem_vendor, pci_dev->subsystem_device); 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20336557d7b8599c22819d16497ab6dcc33f2f3027a4Stephen Hemminger ndev->netdev_ops = &netdev_ops; 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SET_ETHTOOL_OPS(ndev, &ops); 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->watchdog_timeo = 5 * HZ; 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_drvdata(pci_dev, ndev); 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_do_reset(dev, CR_RST); 20391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Must reset the ram bist before running it */ 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(PTSCR_RBIST_RST, dev->base + PTSCR); 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_run_bist(ndev, "sram bist", PTSCR_RBIST_EN, 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PTSCR_RBIST_DONE, PTSCR_RBIST_FAIL); 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_run_bist(ndev, "eeprom bist", PTSCR_EEBIST_EN, 0, 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PTSCR_EEBIST_FAIL); 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_run_bist(ndev, "eeprom load", PTSCR_EELOAD_EN, 0, 0); 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* I love config registers */ 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache = readl(dev->base + CFG); 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((dev->CFG_cache & CFG_PCI64_DET)) { 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: detected 64 bit PCI data bus.\n", 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name); 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /*dev->CFG_cache |= CFG_DATA64_EN;*/ 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(dev->CFG_cache & CFG_DATA64_EN)) 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: EEPROM did not enable 64 bit bus. Disabled.\n", 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name); 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache &= ~(CFG_DATA64_EN); 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache &= (CFG_TBI_EN | CFG_MRM_DIS | CFG_MWI_DIS | 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CFG_T64ADDR | CFG_DATA64_EN | CFG_EXT_125 | 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CFG_M64ADDR); 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= CFG_PINT_DUPSTS | CFG_PINT_LNKSTS | CFG_PINT_SPDSTS | 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CFG_EXTSTS_EN | CFG_EXD | CFG_PESEL; 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= CFG_REQALG; 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= CFG_POW; 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= CFG_TMRTEST; 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* When compiled with 64 bit addressing, we must always enable 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the 64 bit descriptor format. 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20736aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik if (sizeof(dma_addr_t) == 8) 2074c16ef1ceedff27c1b452724ca7f89b729651098fBenjamin LaHaise dev->CFG_cache |= CFG_M64ADDR; 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (using_dac) 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= CFG_T64ADDR; 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Big endian mode does not seem to do what the docs suggest */ 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache &= ~CFG_BEM; 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* setup optical transceiver if we have one */ 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->CFG_cache & CFG_TBI_EN) { 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: enabling optical transceiver\n", 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name); 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + GPIOR) | 0x3e8, dev->base + GPIOR); 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* setup auto negotiation feature advertisement */ 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base + TANAR) 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | TANAR_HALF_DUP | TANAR_FULL_DUP, 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + TANAR); 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* start auto negotiation */ 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(TBICR_MR_AN_ENABLE | TBICR_MR_RESTART_AN, 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + TBICR); 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(TBICR_MR_AN_ENABLE, dev->base + TBICR); 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->linkstate = LINK_AUTONEGOTIATE; 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->CFG_cache |= CFG_MODE_1000; 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->CFG_cache, dev->base + CFG); 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dprintk("CFG: %08x\n", dev->CFG_cache); 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (reset_phy) { 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: resetting phy\n", ndev->name); 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->CFG_cache | CFG_PHY_RST, dev->base + CFG); 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds msleep(10); 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(dev->CFG_cache, dev->base + CFG); 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21116aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik#if 0 /* Huh? This sets the PCI latency register. Should be done via 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the PCI layer. FIXME. 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readl(dev->base + SRR)) 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(readl(dev->base+0x20c) | 0xfe00, dev->base + 0x20c); 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Note! The DMA burst size interacts with packet 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transmission, such that the largest packet that 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * can be transmitted is 8192 - FLTH - burst size. 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If only the transmit fifo was larger... 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21236aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik /* Ramit : 1024 DMA is not a good idea, it ends up banging 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * some DELL and COMPAQ SMP systems */ 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(TXCFG_CSI | TXCFG_HBI | TXCFG_ATP | TXCFG_MXDMA512 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | ((1600 / 32) * 0x100), 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + TXCFG); 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Flush the interrupt holdoff timer */ 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0x000, dev->base + IHR); 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0x100, dev->base + IHR); 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0x000, dev->base + IHR); 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Rx to full duplex, don't accept runt, errored, long or length 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * range errored packets. Use 512 byte DMA. 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21376aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik /* Ramit : 1024 DMA is not a good idea, it ends up banging 21386aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik * some DELL and COMPAQ SMP systems 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Turn on ALP, only we are accpeting Jumbo Packets */ 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(RXCFG_AEP | RXCFG_ARP | RXCFG_AIRL | RXCFG_RX_FD 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | RXCFG_STRIPCRC 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //| RXCFG_ALP 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | (RXCFG_MXDMA512) | 0, dev->base + RXCFG); 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Disable priority queueing */ 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + PQCR); 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Enable IP checksum validation and detetion of VLAN headers. 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: do not set the reject options as at least the 0x102 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * revision of the chip does not properly accept IP fragments 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * at least for UDP. 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ramit : Be sure to turn on RXCFG_ARP if VLAN's are enabled, since 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the MAC it calculates the packetsize AFTER stripping the VLAN 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * header, and if a VLAN Tagged packet of 64 bytes is received (like 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a ping with a VLAN header) then the card, strips the 4 byte VLAN 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * tag and then checks the packet size, so if RXCFG_ARP is not enabled, 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it discrards it!. These guys...... 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * also turn on tag stripping if hardware acceleration is enabled 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef NS83820_VLAN_ACCEL_SUPPORT 21626aa20a2235535605db6d6d2bd850298b2fe7f31eJeff Garzik#define VRCR_INIT_VALUE (VRCR_IPEN|VRCR_VTDEN|VRCR_VTREN) 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VRCR_INIT_VALUE (VRCR_IPEN|VRCR_VTDEN) 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(VRCR_INIT_VALUE, dev->base + VRCR); 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Enable per-packet TCP/UDP/IP checksumming 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and per packet vlan tag insertion if 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * vlan hardware acceleration is enabled 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef NS83820_VLAN_ACCEL_SUPPORT 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR_INIT_VALUE (VTCR_PPCHK|VTCR_VPPTI) 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VTCR_INIT_VALUE VTCR_PPCHK 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(VTCR_INIT_VALUE, dev->base + VTCR); 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ramit : Enable async and sync pause frames */ 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* writel(0, dev->base + PCR); */ 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel((PCR_PS_MCAST | PCR_PS_DA | PCR_PSEN | PCR_FFLO_4K | 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCR_FFHI_8K | PCR_STLO_4 | PCR_STHI_8 | PCR_PAUSE_CNT), 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base + PCR); 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Disable Wake On Lan */ 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writel(0, dev->base + WCSR); 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_getmac(dev, ndev->dev_addr); 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Yes, we support dumb IP checksum on transmit */ 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->features |= NETIF_F_SG; 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->features |= NETIF_F_IP_CSUM; 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef NS83820_VLAN_ACCEL_SUPPORT 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* We also support hardware vlan acceleration */ 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (using_dac) { 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: using 64 bit addressing.\n", 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name); 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->features |= NETIF_F_HIGHDMA; 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2205e174961ca1a0b28f7abf0be47973ad57cb74e5f0Johannes Berg printk(KERN_INFO "%s: ns83820 v" VERSION ": DP83820 v%u.%u: %pM io=0x%08lx irq=%d f=%s\n", 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ndev->name, 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned)readl(dev->base + SRR) >> 8, 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned)readl(dev->base + SRR) & 0xff, 2209e174961ca1a0b28f7abf0be47973ad57cb74e5f0Johannes Berg ndev->dev_addr, addr, pci_dev->irq, 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ndev->features & NETIF_F_HIGHDMA) ? "h,sg" : "sg" 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ); 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef PHY_CODE_IS_FINISHED 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ns83820_probe_phy(ndev); 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = register_netdevice(ndev); 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) { 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ns83820: unable to register netdev: %d\n", err); 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_cleanup; 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rtnl_unlock(); 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout_cleanup: 22271a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov ns83820_disable_interrupts(dev); /* paranoia */ 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout_free_irq: 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rtnl_unlock(); 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(pci_dev->irq, ndev); 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout_disable: 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->base) 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(dev->base); 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(pci_dev, 4 * DESC_SIZE * NR_TX_DESC, dev->tx_descs, dev->tx_phy_descs); 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(pci_dev, 4 * DESC_SIZE * NR_RX_DESC, dev->rx_info.descs, dev->rx_info.phy_descs); 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pci_dev); 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout_free: 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_netdev(ndev); 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_drvdata(pci_dev, NULL); 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 22411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __devexit ns83820_remove_one(struct pci_dev *pci_dev) 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *ndev = pci_get_drvdata(pci_dev); 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ns83820 *dev = PRIV(ndev); /* ok even if NULL */ 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ndev) /* paranoia */ 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 22511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22521a9f28c8f94659a70f34f0f2ab12371c0745518dDenis Kirjanov ns83820_disable_interrupts(dev); /* paranoia */ 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_netdev(ndev); 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(dev->pci_dev->irq, ndev); 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(dev->base); 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(dev->pci_dev, 4 * DESC_SIZE * NR_TX_DESC, 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_descs, dev->tx_phy_descs); 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(dev->pci_dev, 4 * DESC_SIZE * NR_RX_DESC, 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->rx_info.descs, dev->rx_info.phy_descs); 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(dev->pci_dev); 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_netdev(ndev); 22631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_drvdata(pci_dev, NULL); 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2266a3aa18842a5303fc28fcc4d57dbd16618bd830a0Alexey Dobriyanstatic DEFINE_PCI_DEVICE_TABLE(ns83820_pci_tbl) = { 22671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x100b, 0x0022, PCI_ANY_ID, PCI_ANY_ID, 0, .driver_data = 0, }, 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0, }, 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 22701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_driver driver = { 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ns83820", 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = ns83820_pci_tbl, 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = ns83820_init_one, 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .remove = __devexit_p(ns83820_remove_one), 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if 0 /* FIXME: implement */ 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = , 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = , 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ns83820_init(void) 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ns83820.c: National Semiconductor DP83820 10/100/1000 driver.\n"); 2286299176206b266f204be859adf9e66efd06628ab2Jeff Garzik return pci_register_driver(&driver); 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit ns83820_exit(void) 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unregister_driver(&driver); 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Benjamin LaHaise <bcrl@kvack.org>"); 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("National Semiconductor DP83820 10/100/1000 driver"); 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 22971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, ns83820_pci_tbl); 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(lnksts, int, 0); 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(lnksts, "Polarity of LNKSTS bit"); 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(ihr, int, 0); 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(ihr, "Time in 100 us increments to delay interrupts (range 0-127)"); 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(reset_phy, int, 0); 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(reset_phy, "Set to 1 to reset the PHY on startup"); 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ns83820_init); 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(ns83820_exit); 2311