11202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 21202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * ipg.c: Device Driver for the IP1000 Gigabit Ethernet Adapter 31202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 41202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Copyright (C) 2003, 2007 IC Plus Corp 51202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 61202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Original Author: 71202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 81202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Craig Rich 91202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Sundance Technology, Inc. 101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * www.sundanceti.com 111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * craig_rich@sundanceti.com 121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Current Maintainer: 141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Sorbica Shieh. 161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * http://www.icplus.com.tw 171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * sorbica@icplus.com.tw 181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Jesse Huang 201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * http://www.icplus.com.tw 211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * jesse@icplus.com.tw 221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 23c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 24c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 25c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#include <linux/crc32.h> 271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#include <linux/ethtool.h> 28a6b7a407865aab9f849dd99a71072b7cd1175116Alexey Dobriyan#include <linux/interrupt.h> 295a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/gfp.h> 301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#include <linux/mii.h> 311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#include <linux/mutex.h> 321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 331dad939ddbbd8d64e1edc7799df00a9e591b4197trem#include <asm/div64.h> 341dad939ddbbd8d64e1edc7799df00a9e591b4197trem 351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define IPG_RX_RING_BYTES (sizeof(struct ipg_rx) * IPG_RFDLIST_LENGTH) 361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define IPG_TX_RING_BYTES (sizeof(struct ipg_tx) * IPG_TFDLIST_LENGTH) 371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define IPG_RESET_MASK \ 381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (IPG_AC_GLOBAL_RESET | IPG_AC_RX_RESET | IPG_AC_TX_RESET | \ 391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_AC_DMA | IPG_AC_FIFO | IPG_AC_NETWORK | IPG_AC_HOST | \ 401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_AC_AUTO_INIT) 411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 428da5bb7a274559737defa400a42461e1366fc30aPekka Enberg#define ipg_w32(val32, reg) iowrite32((val32), ioaddr + (reg)) 438da5bb7a274559737defa400a42461e1366fc30aPekka Enberg#define ipg_w16(val16, reg) iowrite16((val16), ioaddr + (reg)) 448da5bb7a274559737defa400a42461e1366fc30aPekka Enberg#define ipg_w8(val8, reg) iowrite8((val8), ioaddr + (reg)) 451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define ipg_r32(reg) ioread32(ioaddr + (reg)) 471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define ipg_r16(reg) ioread16(ioaddr + (reg)) 481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define ipg_r8(reg) ioread8(ioaddr + (reg)) 491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuenum { 511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netdev_io_size = 128 521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#include "ipg.h" 551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define DRV_NAME "ipg" 561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois RomieuMODULE_AUTHOR("IC Plus Corp. 2003"); 581662e4b7af956979c6cb864bf23cf88f882cdaf8Pekka EnbergMODULE_DESCRIPTION("IC Plus IP1000 Gigabit Ethernet Adapter Linux Driver"); 591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois RomieuMODULE_LICENSE("GPL"); 601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 618da5bb7a274559737defa400a42461e1366fc30aPekka Enberg/* 62532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg * Defaults 63532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg */ 64532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg#define IPG_MAX_RXFRAME_SIZE 0x0600 65532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg#define IPG_RXFRAG_SIZE 0x0600 66532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg#define IPG_RXSUPPORT_SIZE 0x0600 67532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg#define IPG_IS_JUMBO false 68532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg 69532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg/* 708da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * Variable record -- index by leading revision/length 718da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * Revision/Length(=N*4), Address1, Data1, Address2, Data2,...,AddressN,DataN 728da5bb7a274559737defa400a42461e1366fc30aPekka Enberg */ 73fc502ba0086f142639208f879e577e1b5a4eeb8eJoe Perchesstatic const unsigned short DefaultPhyParam[] = { 748da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 11/12/03 IP1000A v1-3 rev=0x40 */ 7596fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk /*-------------------------------------------------------------------------- 7696fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk (0x4000|(15*4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 22, 0x85bd, 24, 0xfff2, 7796fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 27, 0x0c10, 28, 0x0c10, 29, 0x2c10, 31, 0x0003, 23, 0x92f6, 7896fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 31, 0x0000, 23, 0x003d, 30, 0x00de, 20, 0x20e7, 9, 0x0700, 7996fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk --------------------------------------------------------------------------*/ 808da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 12/17/03 IP1000A v1-4 rev=0x40 */ 8196fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk (0x4000 | (07 * 4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 27, 0xeb8e, 31, 8296fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 0x0000, 8396fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 30, 0x005e, 9, 0x0700, 848da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 01/09/04 IP1000A v1-5 rev=0x41 */ 8596fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk (0x4100 | (07 * 4)), 31, 0x0001, 27, 0x01e0, 31, 0x0002, 27, 0xeb8e, 31, 8696fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 0x0000, 8796fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 30, 0x005e, 9, 0x0700, 8896fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 0x0000 8996fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk}; 9096fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunk 91fc502ba0086f142639208f879e577e1b5a4eeb8eJoe Perchesstatic const char * const ipg_brand_name[] = { 921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu "IC PLUS IP1000 1000/100/10 based NIC", 931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu "Sundance Technology ST2021 based NIC", 941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu "Tamarack Microelectronics TC9020/9021 based NIC", 951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu "D-Link NIC IP1000A" 961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 98a3aa18842a5303fc28fcc4d57dbd16618bd830a0Alexey Dobriyanstatic DEFINE_PCI_DEVICE_TABLE(ipg_pci_tbl) = { 991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { PCI_VDEVICE(SUNDANCE, 0x1023), 0 }, 1001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { PCI_VDEVICE(SUNDANCE, 0x2021), 1 }, 1011aa46ec91cfd3cc4ab19780f664a3d089bb67173Ken Kawasaki { PCI_VDEVICE(DLINK, 0x9021), 2 }, 1021aa46ec91cfd3cc4ab19780f664a3d089bb67173Ken Kawasaki { PCI_VDEVICE(DLINK, 0x4020), 3 }, 1031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { 0, } 1041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 1051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois RomieuMODULE_DEVICE_TABLE(pci, ipg_pci_tbl); 1071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic inline void __iomem *ipg_ioaddr(struct net_device *dev) 1091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 1111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return sp->ioaddr; 1121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#ifdef IPG_DEBUG 1151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_dump_rfdlist(struct net_device *dev) 1161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 1181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 1191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 1201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 offset; 1211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_dump_rfdlist\n"); 1231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 124c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "rx_current = %02x\n", sp->rx_current); 125c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "rx_dirty = %02x\n", sp->rx_dirty); 126c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "RFDList start address = %016lx\n", 127c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches (unsigned long)sp->rxd_map); 128c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "RFDListPtr register = %08x%08x\n", 129c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches ipg_r32(IPG_RFDLISTPTR1), ipg_r32(IPG_RFDLISTPTR0)); 1301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_RFDLIST_LENGTH; i++) { 1321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu offset = (u32) &sp->rxd[i].next_desc - (u32) sp->rxd; 133c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "%02x %04x RFDNextPtr = %016lx\n", 134c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches i, offset, (unsigned long)sp->rxd[i].next_desc); 1351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu offset = (u32) &sp->rxd[i].rfs - (u32) sp->rxd; 136c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "%02x %04x RFS = %016lx\n", 137c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches i, offset, (unsigned long)sp->rxd[i].rfs); 1381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu offset = (u32) &sp->rxd[i].frag_info - (u32) sp->rxd; 139c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "%02x %04x frag_info = %016lx\n", 140c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches i, offset, (unsigned long)sp->rxd[i].frag_info); 1411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 1421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_dump_tfdlist(struct net_device *dev) 1451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 1471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 1481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 1491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 offset; 1501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_dump_tfdlist\n"); 1521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 153c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "tx_current = %02x\n", sp->tx_current); 154c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "tx_dirty = %02x\n", sp->tx_dirty); 155c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "TFDList start address = %016lx\n", 156c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches (unsigned long) sp->txd_map); 157c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "TFDListPtr register = %08x%08x\n", 158c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches ipg_r32(IPG_TFDLISTPTR1), ipg_r32(IPG_TFDLISTPTR0)); 1591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { 1611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu offset = (u32) &sp->txd[i].next_desc - (u32) sp->txd; 162c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "%02x %04x TFDNextPtr = %016lx\n", 163c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches i, offset, (unsigned long)sp->txd[i].next_desc); 1641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu offset = (u32) &sp->txd[i].tfc - (u32) sp->txd; 166c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "%02x %04x TFC = %016lx\n", 167c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches i, offset, (unsigned long) sp->txd[i].tfc); 1681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu offset = (u32) &sp->txd[i].frag_info - (u32) sp->txd; 169c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "%02x %04x frag_info = %016lx\n", 170c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches i, offset, (unsigned long) sp->txd[i].frag_info); 1711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 1721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#endif 1741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_write_phy_ctl(void __iomem *ioaddr, u8 data) 1761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_PC_RSVD_MASK & data, PHY_CTRL); 1781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ndelay(IPG_PC_PHYCTRLWAIT_NS); 1791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_drive_phy_ctl_low_high(void __iomem *ioaddr, u8 data) 1821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | data); 1841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | data); 1851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void send_three_state(void __iomem *ioaddr, u8 phyctrlpolarity) 1881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phyctrlpolarity |= (IPG_PC_MGMTDATA & 0) | IPG_PC_MGMTDIR; 1901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_drive_phy_ctl_low_high(ioaddr, phyctrlpolarity); 1921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void send_end(void __iomem *ioaddr, u8 phyctrlpolarity) 1951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 1961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8((IPG_PC_MGMTCLK_LO | (IPG_PC_MGMTDATA & 0) | IPG_PC_MGMTDIR | 1971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phyctrlpolarity) & IPG_PC_RSVD_MASK, PHY_CTRL); 1981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 1991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2008da5bb7a274559737defa400a42461e1366fc30aPekka Enbergstatic u16 read_phy_bit(void __iomem *ioaddr, u8 phyctrlpolarity) 2011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 2021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 bit_data; 2031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | phyctrlpolarity); 2051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu bit_data = ((ipg_r8(PHY_CTRL) & IPG_PC_MGMTDATA) >> 1) & 1; 2071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | phyctrlpolarity); 2091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return bit_data; 2111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 2121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 2141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Read a register from the Physical Layer device located 2151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * on the IPG NIC, using the IPG PHYCTRL register. 2161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 2178da5bb7a274559737defa400a42461e1366fc30aPekka Enbergstatic int mdio_read(struct net_device *dev, int phy_id, int phy_reg) 2181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 2191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = ipg_ioaddr(dev); 2201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 2211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * The GMII mangement frame structure for a read is as follows: 2221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 2231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * |Preamble|st|op|phyad|regad|ta| data |idle| 2241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * |< 32 1s>|01|10|AAAAA|RRRRR|z0|DDDDDDDDDDDDDDDD|z | 2251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 2261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * <32 1s> = 32 consecutive logic 1 values 2271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * A = bit of Physical Layer device address (MSB first) 2281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * R = bit of register address (MSB first) 2291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * z = High impedance state 2301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * D = bit of read data (MSB first) 2311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 2321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Transmission order is 'Preamble' field first, bits transmitted 2331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * left to right (first to last). 2341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 2351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct { 2361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 field; 2371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int len; 2381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } p[] = { 2391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { GMII_PREAMBLE, 32 }, /* Preamble */ 2401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { GMII_ST, 2 }, /* ST */ 2411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { GMII_READ, 2 }, /* OP */ 2421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { phy_id, 5 }, /* PHYAD */ 2431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { phy_reg, 5 }, /* REGAD */ 2441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { 0x0000, 2 }, /* TA */ 2451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { 0x0000, 16 }, /* DATA */ 2461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { 0x0000, 1 } /* IDLE */ 2471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu }; 2481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i, j; 2491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u8 polarity, data; 2501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu polarity = ipg_r8(PHY_CTRL); 2521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu polarity &= (IPG_PC_DUPLEX_POLARITY | IPG_PC_LINK_POLARITY); 2531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Create the Preamble, ST, OP, PHYAD, and REGAD field. */ 2551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (j = 0; j < 5; j++) { 2561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < p[j].len; i++) { 2571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* For each variable length field, the MSB must be 2581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * transmitted first. Rotate through the field bits, 2591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * starting with the MSB, and move each bit into the 2601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * the 1st (2^1) bit position (this is the bit position 2611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * corresponding to the MgmtData bit of the PhyCtrl 2621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * register for the IPG). 2631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 2641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Example: ST = 01; 2651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 2661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * First write a '0' to bit 1 of the PhyCtrl 2671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * register, then write a '1' to bit 1 of the 2681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * PhyCtrl register. 2691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 2701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * To do this, right shift the MSB of ST by the value: 2711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * [field length - 1 - #ST bits already written] 2721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * then left shift this result by 1. 2731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 2741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data = (p[j].field >> (p[j].len - 1 - i)) << 1; 2751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data &= IPG_PC_MGMTDATA; 2761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data |= polarity | IPG_PC_MGMTDIR; 2771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_drive_phy_ctl_low_high(ioaddr, data); 2791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 2801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 2811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu send_three_state(ioaddr, polarity); 2831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu read_phy_bit(ioaddr, polarity); 2851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 2871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * For a read cycle, the bits for the next two fields (TA and 2881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * DATA) are driven by the PHY (the IPG reads these bits). 2891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 2901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < p[6].len; i++) { 2911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu p[6].field |= 2921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (read_phy_bit(ioaddr, polarity) << (p[6].len - 1 - i)); 2931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 2941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu send_three_state(ioaddr, polarity); 2961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu send_three_state(ioaddr, polarity); 2971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu send_three_state(ioaddr, polarity); 2981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu send_end(ioaddr, polarity); 2991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Return the value of the DATA field. */ 3011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return p[6].field; 3021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 3031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 3051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Write to a register from the Physical Layer device located 3061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * on the IPG NIC, using the IPG PHYCTRL register. 3071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 3081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void mdio_write(struct net_device *dev, int phy_id, int phy_reg, int val) 3091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 3101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = ipg_ioaddr(dev); 3111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 3121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * The GMII mangement frame structure for a read is as follows: 3131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 3141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * |Preamble|st|op|phyad|regad|ta| data |idle| 3151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * |< 32 1s>|01|10|AAAAA|RRRRR|z0|DDDDDDDDDDDDDDDD|z | 3161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 3171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * <32 1s> = 32 consecutive logic 1 values 3181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * A = bit of Physical Layer device address (MSB first) 3191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * R = bit of register address (MSB first) 3201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * z = High impedance state 3211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * D = bit of write data (MSB first) 3221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 3231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Transmission order is 'Preamble' field first, bits transmitted 3241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * left to right (first to last). 3251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 3261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct { 3271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 field; 3281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int len; 3291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } p[] = { 3301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { GMII_PREAMBLE, 32 }, /* Preamble */ 3311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { GMII_ST, 2 }, /* ST */ 3321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { GMII_WRITE, 2 }, /* OP */ 3331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { phy_id, 5 }, /* PHYAD */ 3341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { phy_reg, 5 }, /* REGAD */ 3351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { 0x0002, 2 }, /* TA */ 3361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { val & 0xffff, 16 }, /* DATA */ 3371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu { 0x0000, 1 } /* IDLE */ 3381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu }; 3391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i, j; 3401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u8 polarity, data; 3411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu polarity = ipg_r8(PHY_CTRL); 3431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu polarity &= (IPG_PC_DUPLEX_POLARITY | IPG_PC_LINK_POLARITY); 3441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Create the Preamble, ST, OP, PHYAD, and REGAD field. */ 3461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (j = 0; j < 7; j++) { 3471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < p[j].len; i++) { 3481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* For each variable length field, the MSB must be 3491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * transmitted first. Rotate through the field bits, 3501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * starting with the MSB, and move each bit into the 3511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * the 1st (2^1) bit position (this is the bit position 3521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * corresponding to the MgmtData bit of the PhyCtrl 3531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * register for the IPG). 3541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 3551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Example: ST = 01; 3561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 3571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * First write a '0' to bit 1 of the PhyCtrl 3581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * register, then write a '1' to bit 1 of the 3591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * PhyCtrl register. 3601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 3611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * To do this, right shift the MSB of ST by the value: 3621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * [field length - 1 - #ST bits already written] 3631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * then left shift this result by 1. 3641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 3651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data = (p[j].field >> (p[j].len - 1 - i)) << 1; 3661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data &= IPG_PC_MGMTDATA; 3671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data |= polarity | IPG_PC_MGMTDIR; 3681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_drive_phy_ctl_low_high(ioaddr, data); 3701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 3711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 3721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* The last cycle is a tri-state, so read from the PHY. */ 374d7d75960ea74e524d75ba8b067523471f39a7bf3Patrick Kelle ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_LO | polarity); 375d7d75960ea74e524d75ba8b067523471f39a7bf3Patrick Kelle ipg_r8(PHY_CTRL); 376d7d75960ea74e524d75ba8b067523471f39a7bf3Patrick Kelle ipg_write_phy_ctl(ioaddr, IPG_PC_MGMTCLK_HI | polarity); 3771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 3781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_set_led_mode(struct net_device *dev) 3801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 3811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 3821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 3831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 mode; 3841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mode = ipg_r32(ASIC_CTRL); 3861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mode &= ~(IPG_AC_LED_MODE_BIT_1 | IPG_AC_LED_MODE | IPG_AC_LED_SPEED); 3871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3889893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if ((sp->led_mode & 0x03) > 1) 3891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mode |= IPG_AC_LED_MODE_BIT_1; /* Write Asic Control Bit 29 */ 3901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3919893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if ((sp->led_mode & 0x01) == 1) 3921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mode |= IPG_AC_LED_MODE; /* Write Asic Control Bit 14 */ 3931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3949893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if ((sp->led_mode & 0x08) == 8) 3951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mode |= IPG_AC_LED_SPEED; /* Write Asic Control Bit 27 */ 3961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 3971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(mode, ASIC_CTRL); 3981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 3991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_set_phy_set(struct net_device *dev) 4011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 4021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 4031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 4041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int physet; 4051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu physet = ipg_r8(PHY_SET); 4071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu physet &= ~(IPG_PS_MEM_LENB9B | IPG_PS_MEM_LEN9 | IPG_PS_NON_COMPDET); 4089893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg physet |= ((sp->led_mode & 0x70) >> 4); 4091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(physet, PHY_SET); 4101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 4111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_reset(struct net_device *dev, u32 resetflags) 4131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 4141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Assert functional resets via the IPG AsicCtrl 4151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * register as specified by the 'resetflags' input 4161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * parameter. 4171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 418dea4a87cabc4ba0c09123c6e8392aa68fe437b31Pekka Enberg void __iomem *ioaddr = ipg_ioaddr(dev); 4191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int timeout_count = 0; 4201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_reset\n"); 4221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(ipg_r32(ASIC_CTRL) | resetflags, ASIC_CTRL); 4241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Delay added to account for problem with 10Mbps reset. */ 4261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mdelay(IPG_AC_RESETWAIT); 4271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu while (IPG_AC_RESET_BUSY & ipg_r32(ASIC_CTRL)) { 4291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mdelay(IPG_AC_RESETWAIT); 4301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (++timeout_count > IPG_AC_RESET_TIMEOUT) 4311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return -ETIME; 4321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 433dea4a87cabc4ba0c09123c6e8392aa68fe437b31Pekka Enberg /* Set LED Mode in Asic Control */ 4341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_set_led_mode(dev); 4351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 436dea4a87cabc4ba0c09123c6e8392aa68fe437b31Pekka Enberg /* Set PHYSet Register Value */ 4371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_set_phy_set(dev); 4381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 4391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 4401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* Find the GMII PHY address. */ 4421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_find_phyaddr(struct net_device *dev) 4431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 4441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int phyaddr, i; 4451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < 32; i++) { 4471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 status; 4481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Search for the correct PHY address among 32 possible. */ 4501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phyaddr = (IPG_NIC_PHY_ADDRESS + i) % 32; 4511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 10/22/03 Grace change verify from GMII_PHY_STATUS to 4531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu GMII_PHY_ID1 4541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 4551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu status = mdio_read(dev, phyaddr, MII_BMSR); 4571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if ((status != 0xFFFF) && (status != 0)) 4591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return phyaddr; 4601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 4611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0x1f; 4631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 4641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 4661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Configure IPG based on result of IEEE 802.3 PHY 4671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * auto-negotiation. 4681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 4691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_config_autoneg(struct net_device *dev) 4701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 4711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 4721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 4731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int txflowcontrol; 4741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int rxflowcontrol; 4751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int fullduplex; 4761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 mac_ctrl_val; 4771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 asicctrl; 4781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u8 phyctrl; 479c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches const char *speed; 480c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches const char *duplex; 481c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches const char *tx_desc; 482c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches const char *rx_desc; 4831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_config_autoneg\n"); 4851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 4861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu asicctrl = ipg_r32(ASIC_CTRL); 4871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phyctrl = ipg_r8(PHY_CTRL); 4881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mac_ctrl_val = ipg_r32(MAC_CTRL); 4891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 49025985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* Set flags for use in resolving auto-negotiation, assuming 4911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * non-1000Mbps, half duplex, no flow control. 4921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 4931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu fullduplex = 0; 4941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txflowcontrol = 0; 4951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxflowcontrol = 0; 4961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 49725985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* To accommodate a problem in 10Mbps operation, 4981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * set a global flag if PHY running in 10Mbps mode. 4991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 5001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->tenmbpsmode = 0; 5011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Determine actual speed of operation. */ 5031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu switch (phyctrl & IPG_PC_LINK_SPEED) { 5041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu case IPG_PC_LINK_SPEED_10MBPS: 505c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches speed = "10Mbps"; 5061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->tenmbpsmode = 1; 5071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 5081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu case IPG_PC_LINK_SPEED_100MBPS: 509c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches speed = "100Mbps"; 5101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 5111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu case IPG_PC_LINK_SPEED_1000MBPS: 512c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches speed = "1000Mbps"; 5131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 5141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu default: 515c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches speed = "undefined!"; 5161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 5171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 5181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 519c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Link speed = %s\n", speed); 520c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches if (sp->tenmbpsmode == 1) 521c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "10Mbps operational mode enabled\n"); 522c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 5231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (phyctrl & IPG_PC_DUPLEX_STATUS) { 5241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu fullduplex = 1; 5251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txflowcontrol = 1; 5261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxflowcontrol = 1; 5271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 5281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Configure full duplex, and flow control. */ 5301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (fullduplex == 1) { 531c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 5321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Configure IPG for full duplex operation. */ 533c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 534c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches duplex = "full"; 5351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mac_ctrl_val |= IPG_MC_DUPLEX_SELECT_FD; 5371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (txflowcontrol == 1) { 539c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches tx_desc = ""; 5401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mac_ctrl_val |= IPG_MC_TX_FLOW_CONTROL_ENABLE; 5411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 542c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches tx_desc = "no "; 5431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mac_ctrl_val &= ~IPG_MC_TX_FLOW_CONTROL_ENABLE; 5441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 5451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rxflowcontrol == 1) { 547c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches rx_desc = ""; 5481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mac_ctrl_val |= IPG_MC_RX_FLOW_CONTROL_ENABLE; 5491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 550c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches rx_desc = "no "; 5511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mac_ctrl_val &= ~IPG_MC_RX_FLOW_CONTROL_ENABLE; 5521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 5531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 554c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches duplex = "half"; 555c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches tx_desc = "no "; 556c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches rx_desc = "no "; 557c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches mac_ctrl_val &= (~IPG_MC_DUPLEX_SELECT_FD & 558c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches ~IPG_MC_TX_FLOW_CONTROL_ENABLE & 559c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches ~IPG_MC_RX_FLOW_CONTROL_ENABLE); 5601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 561c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 562c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "setting %s duplex, %sTX, %sRX flow control\n", 563c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches duplex, tx_desc, rx_desc); 5641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(mac_ctrl_val, MAC_CTRL); 565c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches 5661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 5671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 5681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* Determine and configure multicast operation and set 5701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * receive mode for IPG. 5711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 5721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_set_multicast_list(struct net_device *dev) 5731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 5741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = ipg_ioaddr(dev); 57522bedad3ce112d5ca1eaf043d4990fa2ed698c87Jiri Pirko struct netdev_hw_addr *ha; 5761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int hashindex; 5771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 hashtable[2]; 5781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u8 receivemode; 5791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_set_multicast_list\n"); 5811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu receivemode = IPG_RM_RECEIVEUNICAST | IPG_RM_RECEIVEBROADCAST; 5831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (dev->flags & IFF_PROMISC) { 5851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* NIC to be configured in promiscuous mode. */ 5861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu receivemode = IPG_RM_RECEIVEALLFRAMES; 5871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else if ((dev->flags & IFF_ALLMULTI) || 5880761248f08ccd94ddceb5454eb1ad96626b10611Roel Kluin ((dev->flags & IFF_MULTICAST) && 5894cd24eaf0c6ee7f0242e34ee77ec899f255e66b5Jiri Pirko (netdev_mc_count(dev) > IPG_MULTICAST_HASHTABLE_SIZE))) { 5901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* NIC to be configured to receive all multicast 5911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * frames. */ 5921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu receivemode |= IPG_RM_RECEIVEMULTICAST; 5934cd24eaf0c6ee7f0242e34ee77ec899f255e66b5Jiri Pirko } else if ((dev->flags & IFF_MULTICAST) && !netdev_mc_empty(dev)) { 5941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* NIC to be configured to receive selected 5951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * multicast addresses. */ 5961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu receivemode |= IPG_RM_RECEIVEMULTICASTHASH; 5971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 5981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 5991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Calculate the bits to set for the 64 bit, IPG HASHTABLE. 6001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * The IPG applies a cyclic-redundancy-check (the same CRC 6011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * used to calculate the frame data FCS) to the destination 6021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * address all incoming multicast frames whose destination 6031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * address has the multicast bit set. The least significant 6041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 6 bits of the CRC result are used as an addressing index 6051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * into the hash table. If the value of the bit addressed by 6061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * this index is a 1, the frame is passed to the host system. 6071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Clear hashtable. */ 6101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu hashtable[0] = 0x00000000; 6111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu hashtable[1] = 0x00000000; 6121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Cycle through all multicast addresses to filter. */ 61422bedad3ce112d5ca1eaf043d4990fa2ed698c87Jiri Pirko netdev_for_each_mc_addr(ha, dev) { 6151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Calculate CRC result for each multicast address. */ 61622bedad3ce112d5ca1eaf043d4990fa2ed698c87Jiri Pirko hashindex = crc32_le(0xffffffff, ha->addr, 6171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ETH_ALEN); 6181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Use only the least significant 6 bits. */ 6201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu hashindex = hashindex & 0x3F; 6211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Within "hashtable", set bit number "hashindex" 6231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * to a logic 1. 6241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu set_bit(hashindex, (void *)hashtable); 6261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 6271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Write the value of the hashtable, to the 4, 16 bit 6291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * HASHTABLE IPG registers. 6301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(hashtable[0], HASHTABLE_0); 6321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(hashtable[1], HASHTABLE_1); 6331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_RM_RSVD_MASK & receivemode, RECEIVE_MODE); 6351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("ReceiveMode = %x\n", ipg_r8(RECEIVE_MODE)); 6371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 6381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_io_config(struct net_device *dev) 6401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 641da02b23192e8c1dc6830fc38840ea1c5e416a43cPekka Enberg struct ipg_nic_private *sp = netdev_priv(dev); 6421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = ipg_ioaddr(dev); 6431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 origmacctrl; 6441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 restoremacctrl; 6451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_io_config\n"); 6471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu origmacctrl = ipg_r32(MAC_CTRL); 6491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu restoremacctrl = origmacctrl | IPG_MC_STATISTICS_ENABLE; 6511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Based on compilation option, determine if FCS is to be 6531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * stripped on receive frames by IPG. 6541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!IPG_STRIP_FCS_ON_RX) 6561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu restoremacctrl |= IPG_MC_RCV_FCS; 6571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Determine if transmitter and/or receiver are 6591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * enabled so we may restore MACCTRL correctly. 6601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (origmacctrl & IPG_MC_TX_ENABLED) 6621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu restoremacctrl |= IPG_MC_TX_ENABLE; 6631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (origmacctrl & IPG_MC_RX_ENABLED) 6651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu restoremacctrl |= IPG_MC_RX_ENABLE; 6661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Transmitter and receiver must be disabled before setting 6681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IFSSelect. 6691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((origmacctrl & (IPG_MC_RX_DISABLE | IPG_MC_TX_DISABLE)) & 6711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_MC_RSVD_MASK, MAC_CTRL); 6721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Now that transmitter and receiver are disabled, write 6741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * to IFSSelect. 6751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((origmacctrl & IPG_MC_IFS_96BIT) & IPG_MC_RSVD_MASK, MAC_CTRL); 6771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Set RECEIVEMODE register. */ 6791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_set_multicast_list(dev); 6801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 681da02b23192e8c1dc6830fc38840ea1c5e416a43cPekka Enberg ipg_w16(sp->max_rxframe_size, MAX_FRAME_SIZE); 6821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_RXDMAPOLLPERIOD_VALUE, RX_DMA_POLL_PERIOD); 6841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_RXDMAURGENTTHRESH_VALUE, RX_DMA_URGENT_THRESH); 6851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_RXDMABURSTTHRESH_VALUE, RX_DMA_BURST_THRESH); 6861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_TXDMAPOLLPERIOD_VALUE, TX_DMA_POLL_PERIOD); 6871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_TXDMAURGENTTHRESH_VALUE, TX_DMA_URGENT_THRESH); 6881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w8(IPG_TXDMABURSTTHRESH_VALUE, TX_DMA_BURST_THRESH); 6891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16((IPG_IE_HOST_ERROR | IPG_IE_TX_DMA_COMPLETE | 6901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IE_TX_COMPLETE | IPG_IE_INT_REQUESTED | 6911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IE_UPDATE_STATS | IPG_IE_LINK_EVENT | 6921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IE_RX_DMA_COMPLETE | IPG_IE_RX_DMA_PRIORITY), INT_ENABLE); 6931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(IPG_FLOWONTHRESH_VALUE, FLOW_ON_THRESH); 6941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(IPG_FLOWOFFTHRESH_VALUE, FLOW_OFF_THRESH); 6951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 6961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* IPG multi-frag frame bug workaround. 6971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Per silicon revision B3 eratta. 6981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 6991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0200, DEBUG_CTRL); 7001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* IPG TX poll now bug workaround. 7021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Per silicon revision B3 eratta. 7031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 7041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0010, DEBUG_CTRL); 7051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* IPG RX poll now bug workaround. 7071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Per silicon revision B3 eratta. 7081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 7091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(ipg_r16(DEBUG_CTRL) | 0x0020, DEBUG_CTRL); 7101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Now restore MACCTRL to original setting. */ 7121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(IPG_MC_RSVD_MASK & restoremacctrl, MAC_CTRL); 7131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Disable unused RMON statistics. */ 7151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(IPG_RZ_ALL, RMON_STATISTICS_MASK); 7161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Disable unused MIB statistics. */ 7181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(IPG_SM_MACCONTROLFRAMESXMTD | IPG_SM_MACCONTROLFRAMESRCVD | 7191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_SM_BCSTOCTETXMTOK_BCSTFRAMESXMTDOK | IPG_SM_TXJUMBOFRAMES | 7201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_SM_MCSTOCTETXMTOK_MCSTFRAMESXMTDOK | IPG_SM_RXJUMBOFRAMES | 7211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_SM_BCSTOCTETRCVDOK_BCSTFRAMESRCVDOK | 7221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_SM_UDPCHECKSUMERRORS | IPG_SM_TCPCHECKSUMERRORS | 7231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_SM_IPCHECKSUMERRORS, STATISTICS_MASK); 7241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 7261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 7271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 7291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Create a receive buffer within system memory and update 7301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * NIC private structure appropriately. 7311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 7321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_get_rxbuff(struct net_device *dev, int entry) 7331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 7341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 7351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + entry; 7361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct sk_buff *skb; 7371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u64 rxfragsize; 7381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_get_rxbuff\n"); 7401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 74189d71a66c40d629e3b1285def543ab1425558cd5Eric Dumazet skb = netdev_alloc_skb_ip_align(dev, sp->rxsupport_size); 7421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!skb) { 7439893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 7441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return -ENOMEM; 7451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 7461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Save the address of the sk_buff structure. */ 7489893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = skb; 7491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxfd->frag_info = cpu_to_le64(pci_map_single(sp->pdev, skb->data, 7511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE)); 7521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Set the RFD fragment length. */ 75418a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg rxfragsize = sp->rxfrag_size; 7551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxfd->frag_info |= cpu_to_le64((rxfragsize << 48) & IPG_RFI_FRAGLEN); 7561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 7581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 7591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int init_rfdlist(struct net_device *dev) 7611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 7621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 7631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 7641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 7651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_init_rfdlist\n"); 7671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_RFDLIST_LENGTH; i++) { 7691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + i; 7701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7719893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->rx_buff[i]) { 7721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 773325a80715f6dba4b12479f8bb011d96093a47374Al Viro le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, 7741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 7759893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->rx_buff[i]); 7769893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[i] = NULL; 7771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 7781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Clear out the RFS field. */ 7801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxfd->rfs = 0x0000000000000000; 7811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (ipg_get_rxbuff(dev, i) < 0) { 7831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 7841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * A receive buffer was not ready, break the 7851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * RFD list here. 7861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 787c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Cannot allocate Rx buffer\n"); 7881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Just in case we cannot allocate a single RFD. 7901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Should not occur. 7911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 7921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (i == 0) { 793c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_err(dev, "No memory available for RFD list\n"); 7941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return -ENOMEM; 7951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 7961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 7971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 7981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxfd->next_desc = cpu_to_le64(sp->rxd_map + 7991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sizeof(struct ipg_rx)*(i + 1)); 8001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 8011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rxd[i - 1].next_desc = cpu_to_le64(sp->rxd_map); 8021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_current = 0; 8041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_dirty = 0; 8051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Write the location of the RFDList to the IPG. */ 8071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((u32) sp->rxd_map, RFD_LIST_PTR_0); 8081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(0x00000000, RFD_LIST_PTR_1); 8091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 8111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 8121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void init_tfdlist(struct net_device *dev) 8141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 8151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 8161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 8171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 8181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_init_tfdlist\n"); 8201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { 8221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_tx *txfd = sp->txd + i; 8231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc = cpu_to_le64(IPG_TFC_TFDDONE); 8251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8269893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->tx_buff[i]) { 8279893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->tx_buff[i]); 8289893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->tx_buff[i] = NULL; 8291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 8301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->next_desc = cpu_to_le64(sp->txd_map + 8321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sizeof(struct ipg_tx)*(i + 1)); 8331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 8341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->txd[i - 1].next_desc = cpu_to_le64(sp->txd_map); 8351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->tx_current = 0; 8371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->tx_dirty = 0; 8381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Write the location of the TFDList to the IPG. */ 840c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DDEBUG_MSG("Starting TFDListPtr = %08x\n", 8411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (u32) sp->txd_map); 8421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((u32) sp->txd_map, TFD_LIST_PTR_0); 8431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(0x00000000, TFD_LIST_PTR_1); 8441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8459893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->reset_current_tfd = 1; 8461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 8471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 84925985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * Free all transmit buffers which have already been transferred 8501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * via DMA to the IPG. 8511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 8521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_txfree(struct net_device *dev) 8531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 8541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 8550da1b995aee447656c0eb77e4e32468e37f868a3Francois Romieu unsigned int released, pending, dirty; 8561dad939ddbbd8d64e1edc7799df00a9e591b4197trem 8571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_txfree\n"); 8581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pending = sp->tx_current - sp->tx_dirty; 8600da1b995aee447656c0eb77e4e32468e37f868a3Francois Romieu dirty = sp->tx_dirty % IPG_TFDLIST_LENGTH; 8611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (released = 0; released < pending; released++) { 8639893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct sk_buff *skb = sp->tx_buff[dirty]; 8641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_tx *txfd = sp->txd + dirty; 8651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 866c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("TFC = %016lx\n", (unsigned long) txfd->tfc); 8671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Look at each TFD's TFC field beginning 8691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * at the last freed TFD up to the current TFD. 8701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * If the TFDDone bit is set, free the associated 8711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * buffer. 8721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 8730da1b995aee447656c0eb77e4e32468e37f868a3Francois Romieu if (!(txfd->tfc & cpu_to_le64(IPG_TFC_TFDDONE))) 8740da1b995aee447656c0eb77e4e32468e37f868a3Francois Romieu break; 8751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Free the transmit buffer. */ 8771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (skb) { 8781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 879325a80715f6dba4b12479f8bb011d96093a47374Al Viro le64_to_cpu(txfd->frag_info) & ~IPG_TFI_FRAGLEN, 8801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu skb->len, PCI_DMA_TODEVICE); 8811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 88285d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(skb); 8831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8849893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->tx_buff[dirty] = NULL; 8851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 8860da1b995aee447656c0eb77e4e32468e37f868a3Francois Romieu dirty = (dirty + 1) % IPG_TFDLIST_LENGTH; 8871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 8881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->tx_dirty += released; 8901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (netif_queue_stopped(dev) && 8921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (sp->tx_current != (sp->tx_dirty + IPG_TFDLIST_LENGTH))) { 8931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_wake_queue(dev); 8941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 8951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 8961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 8971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_tx_timeout(struct net_device *dev) 8981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 8991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 9001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 9011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_reset(dev, IPG_AC_TX_RESET | IPG_AC_DMA | IPG_AC_NETWORK | 9031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_AC_FIFO); 9041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu spin_lock_irq(&sp->lock); 9061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Re-configure after DMA reset. */ 908c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches if (ipg_io_config(dev) < 0) 909c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Error during re-configuration\n"); 9101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu init_tfdlist(dev); 9121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu spin_unlock_irq(&sp->lock); 9141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & IPG_MC_RSVD_MASK, 9161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu MAC_CTRL); 9171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 9181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* 9201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * For TxComplete interrupts, free all transmit 92125985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * buffers which have already been transferred via DMA 9221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * to the IPG. 9231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 9241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_txcleanup(struct net_device *dev) 9251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 9261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 9271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 9281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 9291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_txcleanup\n"); 9311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { 9331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Reading the TXSTATUS register clears the 9341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * TX_COMPLETE interrupt. 9351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 9361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u32 txstatusdword = ipg_r32(TX_STATUS); 9371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 938c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("TxStatus = %08x\n", txstatusdword); 9391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Check for Transmit errors. Error bits only valid if 9411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * TX_COMPLETE bit in the TXSTATUS register is a 1. 9421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 9431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!(txstatusdword & IPG_TS_TX_COMPLETE)) 9441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 9451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If in 10Mbps mode, indicate transmit is ready. */ 9471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (sp->tenmbpsmode) { 9481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_wake_queue(dev); 9491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Transmit error, increment stat counters. */ 9521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (txstatusdword & IPG_TS_TX_ERROR) { 953c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Transmit error\n"); 9541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_errors++; 9551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Late collision, re-enable transmitter. */ 9581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (txstatusdword & IPG_TS_LATE_COLLISION) { 959c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Late collision on transmit\n"); 9601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & 9611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_MC_RSVD_MASK, MAC_CTRL); 9621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Maximum collisions, re-enable transmitter. */ 9651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (txstatusdword & IPG_TS_TX_MAX_COLL) { 966c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Maximum collisions on transmit\n"); 9671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & 9681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_MC_RSVD_MASK, MAC_CTRL); 9691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Transmit underrun, reset and re-enable 9721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * transmitter. 9731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 9741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (txstatusdword & IPG_TS_TX_UNDERRUN) { 975c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Transmitter underrun\n"); 9761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_fifo_errors++; 9771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_reset(dev, IPG_AC_TX_RESET | IPG_AC_DMA | 9781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_AC_NETWORK | IPG_AC_FIFO); 9791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Re-configure after DMA reset. */ 9811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (ipg_io_config(dev) < 0) { 982c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Error during re-configuration\n"); 9831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu init_tfdlist(dev); 9851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_TX_ENABLE) & 9871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_MC_RSVD_MASK, MAC_CTRL); 9881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 9901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_txfree(dev); 9921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 9931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 9941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* Provides statistical information about the IPG NIC. */ 99596fd74b2d9b59edeed7ea1287d322b7661d549caAdrian Bunkstatic struct net_device_stats *ipg_nic_get_stats(struct net_device *dev) 9961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 9971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 9981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 9991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 temp1; 10001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 temp2; 10011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_get_stats\n"); 10031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Check to see if the NIC has been initialized via nic_open, 10051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * before trying to read statistic registers. 10061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 10071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!test_bit(__LINK_STATE_START, &dev->state)) 10081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return &sp->stats; 10091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_packets += ipg_r32(IPG_FRAMESRCVDOK); 10111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_packets += ipg_r32(IPG_FRAMESXMTDOK); 10121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_bytes += ipg_r32(IPG_OCTETRCVOK); 10131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_bytes += ipg_r32(IPG_OCTETXMTOK); 10141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu temp1 = ipg_r16(IPG_FRAMESLOSTRXERRORS); 10151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_errors += temp1; 10161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_missed_errors += temp1; 10171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu temp1 = ipg_r32(IPG_SINGLECOLFRAMES) + ipg_r32(IPG_MULTICOLFRAMES) + 10181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_r32(IPG_LATECOLLISIONS); 10191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu temp2 = ipg_r16(IPG_CARRIERSENSEERRORS); 10201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.collisions += temp1; 10211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_dropped += ipg_r16(IPG_FRAMESABORTXSCOLLS); 10221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_errors += ipg_r16(IPG_FRAMESWEXDEFERRAL) + 10231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_r32(IPG_FRAMESWDEFERREDXMT) + temp1 + temp2; 10241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.multicast += ipg_r32(IPG_MCSTOCTETRCVDOK); 10251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* detailed tx_errors */ 10271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.tx_carrier_errors += temp2; 10281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* detailed rx_errors */ 10301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_length_errors += ipg_r16(IPG_INRANGELENGTHERRORS) + 10311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_r16(IPG_FRAMETOOLONGERRRORS); 10321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_crc_errors += ipg_r16(IPG_FRAMECHECKSEQERRORS); 10331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Unutilized IPG statistic registers. */ 10351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_r32(IPG_MCSTFRAMESRCVDOK); 10361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return &sp->stats; 10381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 10391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* Restore used receive buffers. */ 10411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_nic_rxrestore(struct net_device *dev) 10421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 10431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 10441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu const unsigned int curr = sp->rx_current; 10451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int dirty = sp->rx_dirty; 10461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_rxrestore\n"); 10481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (dirty = sp->rx_dirty; curr - dirty > 0; dirty++) { 10501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = dirty % IPG_RFDLIST_LENGTH; 10511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* rx_copybreak may poke hole here and there. */ 10539893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->rx_buff[entry]) 10541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu continue; 10551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Generate a new receive buffer to replace the 10571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * current buffer (which will be released by the 10581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Linux system). 10591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 10601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (ipg_get_rxbuff(dev, entry) < 0) { 1061c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Cannot allocate new Rx buffer\n"); 10621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 10641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 10651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Reset the RFS field. */ 10671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rxd[entry].rfs = 0x0000000000000000; 10681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 10691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_dirty = dirty; 10701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 10721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 10731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu/* use jumboindex and jumbosize to control jumbo frame status 10758da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * initial status is jumboindex=-1 and jumbosize=0 10768da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * 1. jumboindex = -1 and jumbosize=0 : previous jumbo frame has been done. 10778da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * 2. jumboindex != -1 and jumbosize != 0 : jumbo frame is not over size and receiving 10788da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * 3. jumboindex = -1 and jumbosize != 0 : jumbo frame is over size, already dump 10798da5bb7a274559737defa400a42461e1366fc30aPekka Enberg * previous receiving and need to continue dumping the current one 10808da5bb7a274559737defa400a42461e1366fc30aPekka Enberg */ 10811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuenum { 10829893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg NORMAL_PACKET, 10839893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg ERROR_PACKET 10841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 10851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuenum { 10879893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg FRAME_NO_START_NO_END = 0, 10889893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg FRAME_WITH_START = 1, 10899893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg FRAME_WITH_END = 10, 10909893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg FRAME_WITH_START_WITH_END = 11 10911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 10921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1093024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enbergstatic void ipg_nic_rx_free_skb(struct net_device *dev) 10941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 10951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 10961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH; 10971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 10989893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->rx_buff[entry]) { 10991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + entry; 11001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 1102b88ed5cc884e4c28d787cf0912b8635376f16a87Harvey Harrison le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, 11031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 11049893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->rx_buff[entry]); 11059893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 11061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 11081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1109024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enbergstatic int ipg_nic_rx_check_frame_type(struct net_device *dev) 11101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 11111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 11121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + (sp->rx_current % IPG_RFDLIST_LENGTH); 11139893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg int type = FRAME_NO_START_NO_END; 11141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMESTART) 11169893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg type += FRAME_WITH_START; 11171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMEEND) 11189893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg type += FRAME_WITH_END; 11191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return type; 11201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 11211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1122024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enbergstatic int ipg_nic_rx_check_error(struct net_device *dev) 11231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 11241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 11251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH; 11261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + entry; 11271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs) & 11291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (IPG_RFS_RXFIFOOVERRUN | IPG_RFS_RXRUNTFRAME | 11301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_RFS_RXALIGNMENTERROR | IPG_RFS_RXFCSERROR | 11311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_RFS_RXOVERSIZEDFRAME | IPG_RFS_RXLENGTHERROR))) { 1132c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Rx error, RFS = %016lx\n", 11331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (unsigned long) rxfd->rfs); 11341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Increment general receive error statistic. */ 11361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_errors++; 11371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Increment detailed receive error statistics. */ 11391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) { 1140c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RX FIFO overrun occurred\n"); 11411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_fifo_errors++; 11431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) { 1146c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RX runt occurred\n"); 11471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_length_errors++; 11481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Do nothing for IPG_RFS_RXOVERSIZEDFRAME, 11511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * error count handled by a IPG statistic register. 11521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 11531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) { 1155c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RX alignment error occurred\n"); 11561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_frame_errors++; 11571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Do nothing for IPG_RFS_RXFCSERROR, error count 11601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * handled by a IPG statistic register. 11611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 11621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Free the memory associated with the RX 11641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * buffer since it is erroneous and we will 11651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * not pass it to higher layer processes. 11661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 11679893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->rx_buff[entry]) { 11681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 1169b88ed5cc884e4c28d787cf0912b8635376f16a87Harvey Harrison le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, 11701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 11711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11729893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->rx_buff[entry]); 11739893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 11741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11759893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg return ERROR_PACKET; 11761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11779893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg return NORMAL_PACKET; 11781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 11791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_rx_with_start_and_end(struct net_device *dev, 11811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp, 11821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd, unsigned entry) 11831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 11849893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct ipg_jumbo *jumbo = &sp->jumbo; 11851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct sk_buff *skb; 11861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int framelen; 11871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11889893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (jumbo->found_start) { 118985d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(jumbo->skb); 11909893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->found_start = 0; 11919893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->current_size = 0; 11921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu jumbo->skb = NULL; 11931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 11941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11958da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 1: found error, 0 no error */ 11969893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (ipg_nic_rx_check_error(dev) != NORMAL_PACKET) 11971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return; 11981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 11999893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg skb = sp->rx_buff[entry]; 12001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!skb) 12011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return; 12021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12038da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* accept this frame and send to upper layer */ 12041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; 120518a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg if (framelen > sp->rxfrag_size) 120618a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg framelen = sp->rxfrag_size; 12071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu skb_put(skb, framelen); 12091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu skb->protocol = eth_type_trans(skb, dev); 1210bc8acf2c8c3e43fcc192762a9f964b3e9a17748bEric Dumazet skb_checksum_none_assert(skb); 12111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_rx(skb); 12129893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 12131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 12141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_rx_with_start(struct net_device *dev, 12161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp, 12171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd, unsigned entry) 12181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 12199893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct ipg_jumbo *jumbo = &sp->jumbo; 12201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct pci_dev *pdev = sp->pdev; 12211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct sk_buff *skb; 12221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12238da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 1: found error, 0 no error */ 12249893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (ipg_nic_rx_check_error(dev) != NORMAL_PACKET) 12251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return; 12261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12278da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* accept this frame and send to upper layer */ 12289893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg skb = sp->rx_buff[entry]; 12291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!skb) 12301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return; 12311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12329893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (jumbo->found_start) 123385d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(jumbo->skb); 12341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1235b88ed5cc884e4c28d787cf0912b8635376f16a87Harvey Harrison pci_unmap_single(pdev, le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, 12361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 12371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 123818a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg skb_put(skb, sp->rxfrag_size); 12391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12409893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->found_start = 1; 124118a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg jumbo->current_size = sp->rxfrag_size; 12421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu jumbo->skb = skb; 12431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12449893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 12451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 12461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_rx_with_end(struct net_device *dev, 12481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp, 12491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd, unsigned entry) 12501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 12519893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct ipg_jumbo *jumbo = &sp->jumbo; 12521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12538da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 1: found error, 0 no error */ 12549893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (ipg_nic_rx_check_error(dev) == NORMAL_PACKET) { 12559893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct sk_buff *skb = sp->rx_buff[entry]; 12561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!skb) 12581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return; 12591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12609893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (jumbo->found_start) { 12611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int framelen, endframelen; 12621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; 12641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1265ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg endframelen = framelen - jumbo->current_size; 126639f205854c829294f9b4db65100d3abdf9c9c145Pekka Enberg if (framelen > sp->rxsupport_size) 126785d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(jumbo->skb); 12681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu else { 1269ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg memcpy(skb_put(jumbo->skb, endframelen), 1270ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg skb->data, endframelen); 12711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu jumbo->skb->protocol = 12731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu eth_type_trans(jumbo->skb, dev); 12741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1275bc8acf2c8c3e43fcc192762a9f964b3e9a17748bEric Dumazet skb_checksum_none_assert(jumbo->skb); 12761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_rx(jumbo->skb); 12771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 12781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 12791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12809893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->found_start = 0; 12819893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->current_size = 0; 12821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu jumbo->skb = NULL; 12831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_rx_free_skb(dev); 12851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 128685d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(jumbo->skb); 12879893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->found_start = 0; 12889893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->current_size = 0; 12891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu jumbo->skb = NULL; 12901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 12911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 12921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_nic_rx_no_start_no_end(struct net_device *dev, 12941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp, 12951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd, unsigned entry) 12961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 12979893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct ipg_jumbo *jumbo = &sp->jumbo; 12981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 12998da5bb7a274559737defa400a42461e1366fc30aPekka Enberg /* 1: found error, 0 no error */ 13009893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (ipg_nic_rx_check_error(dev) == NORMAL_PACKET) { 13019893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct sk_buff *skb = sp->rx_buff[entry]; 13021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (skb) { 13049893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (jumbo->found_start) { 130518a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg jumbo->current_size += sp->rxfrag_size; 130639f205854c829294f9b4db65100d3abdf9c9c145Pekka Enberg if (jumbo->current_size <= sp->rxsupport_size) { 13071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu memcpy(skb_put(jumbo->skb, 130818a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg sp->rxfrag_size), 130918a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg skb->data, sp->rxfrag_size); 13101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_rx_free_skb(dev); 13131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 131585d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(jumbo->skb); 13169893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->found_start = 0; 13179893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg jumbo->current_size = 0; 13181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu jumbo->skb = NULL; 13191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 13211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1322024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enbergstatic int ipg_nic_rx_jumbo(struct net_device *dev) 13231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 13241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 13251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int curr = sp->rx_current; 13261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 13271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 13281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_rx\n"); 13301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_MAXRFDPROCESS_COUNT; i++, curr++) { 13321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = curr % IPG_RFDLIST_LENGTH; 13331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + entry; 13341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1335b88ed5cc884e4c28d787cf0912b8635376f16a87Harvey Harrison if (!(rxfd->rfs & cpu_to_le64(IPG_RFS_RFDDONE))) 13361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 13371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu switch (ipg_nic_rx_check_frame_type(dev)) { 13399893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg case FRAME_WITH_START_WITH_END: 1340ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg ipg_nic_rx_with_start_and_end(dev, sp, rxfd, entry); 13411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 13429893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg case FRAME_WITH_START: 1343ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg ipg_nic_rx_with_start(dev, sp, rxfd, entry); 13441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 13459893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg case FRAME_WITH_END: 1346ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg ipg_nic_rx_with_end(dev, sp, rxfd, entry); 13471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 13489893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg case FRAME_NO_START_NO_END: 1349ecfecfb5e39165b3f7f6d93aacd268edfe7c3524Pekka Enberg ipg_nic_rx_no_start_no_end(dev, sp, rxfd, entry); 13501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 13511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_current = curr; 13551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (i == IPG_MAXRFDPROCESS_COUNT) { 13571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* There are more RFDs to process, however the 13581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * allocated amount of RFD processing time has 13591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * expired. Assert Interrupt Requested to make 13601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * sure we come back to process the remaining RFDs. 13611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 13621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(ipg_r32(ASIC_CTRL) | IPG_AC_INT_REQUEST, ASIC_CTRL); 13631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 13641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_rxrestore(dev); 13661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 13681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 13691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_nic_rx(struct net_device *dev) 13711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 13721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Transfer received Ethernet frames to higher network layers. */ 13731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 13741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int curr = sp->rx_current; 13751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 13761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd; 13771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 13781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_rx\n"); 13801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#define __RFS_MASK \ 13821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu cpu_to_le64(IPG_RFS_RFDDONE | IPG_RFS_FRAMESTART | IPG_RFS_FRAMEEND) 13831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_MAXRFDPROCESS_COUNT; i++, curr++) { 13851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = curr % IPG_RFDLIST_LENGTH; 13869893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg struct sk_buff *skb = sp->rx_buff[entry]; 13871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int framelen; 13881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxfd = sp->rxd + entry; 13901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (((rxfd->rfs & __RFS_MASK) != __RFS_MASK) || !skb) 13921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 13931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Get received frame length. */ 13951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; 13961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 13971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Check for jumbo frame arrival with too small 13981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * RXFRAG_SIZE. 13991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 140018a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg if (framelen > sp->rxfrag_size) { 14011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG 1402c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches ("RFS FrameLen > allocated fragment size\n"); 14031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 140418a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg framelen = sp->rxfrag_size; 14051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1407325a80715f6dba4b12479f8bb011d96093a47374Al Viro if ((IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs) & 14081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (IPG_RFS_RXFIFOOVERRUN | IPG_RFS_RXRUNTFRAME | 14091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_RFS_RXALIGNMENTERROR | IPG_RFS_RXFCSERROR | 1410325a80715f6dba4b12479f8bb011d96093a47374Al Viro IPG_RFS_RXOVERSIZEDFRAME | IPG_RFS_RXLENGTHERROR)))) { 14111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1412c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Rx error, RFS = %016lx\n", 14131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (unsigned long int) rxfd->rfs); 14141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Increment general receive error statistic. */ 14161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_errors++; 14171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Increment detailed receive error statistics. */ 1419325a80715f6dba4b12479f8bb011d96093a47374Al Viro if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFIFOOVERRUN) { 1420c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RX FIFO overrun occurred\n"); 14211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_fifo_errors++; 14221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1424325a80715f6dba4b12479f8bb011d96093a47374Al Viro if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXRUNTFRAME) { 1425c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RX runt occurred\n"); 14261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_length_errors++; 14271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1429325a80715f6dba4b12479f8bb011d96093a47374Al Viro if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXOVERSIZEDFRAME) ; 14301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Do nothing, error count handled by a IPG 14311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * statistic register. 14321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 14331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1434325a80715f6dba4b12479f8bb011d96093a47374Al Viro if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXALIGNMENTERROR) { 1435c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RX alignment error occurred\n"); 14361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->stats.rx_frame_errors++; 14371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1439325a80715f6dba4b12479f8bb011d96093a47374Al Viro if (le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFCSERROR) ; 14401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Do nothing, error count handled by a IPG 14411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * statistic register. 14421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 14431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Free the memory associated with the RX 14451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * buffer since it is erroneous and we will 14461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * not pass it to higher layer processes. 14471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 14481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (skb) { 1449325a80715f6dba4b12479f8bb011d96093a47374Al Viro __le64 info = rxfd->frag_info; 14501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 1452325a80715f6dba4b12479f8bb011d96093a47374Al Viro le64_to_cpu(info) & ~IPG_RFI_FRAGLEN, 14531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 14541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 145585d68a58833a9e361ecabd5e89d228301d346d94Pekka Enberg dev_kfree_skb_irq(skb); 14561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 14581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 145925985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* Adjust the new buffer length to accommodate the size 14601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * of the received frame. 14611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 14621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu skb_put(skb, framelen); 14631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Set the buffer's protocol field to Ethernet. */ 14651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu skb->protocol = eth_type_trans(skb, dev); 14661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14676d3b2cb92bee1cec43c716f4cd6554be1e6b36eaPekka Enberg /* The IPG encountered an error with (or 14686d3b2cb92bee1cec43c716f4cd6554be1e6b36eaPekka Enberg * there were no) IP/TCP/UDP checksums. 14696d3b2cb92bee1cec43c716f4cd6554be1e6b36eaPekka Enberg * This may or may not indicate an invalid 14706d3b2cb92bee1cec43c716f4cd6554be1e6b36eaPekka Enberg * IP/TCP/UDP frame was received. Let the 14716d3b2cb92bee1cec43c716f4cd6554be1e6b36eaPekka Enberg * upper layer decide. 14721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 1473bc8acf2c8c3e43fcc192762a9f964b3e9a17748bEric Dumazet skb_checksum_none_assert(skb); 14741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Hand off frame for higher layer processing. 14761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * The function netif_rx() releases the sk_buff 14771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * when processing completes. 14781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 14791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_rx(skb); 14801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Assure RX buffer is not reused by IPG. */ 14839893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 14841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 14851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 148725985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * If there are more RFDs to process and the allocated amount of RFD 14881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * processing time has expired, assert Interrupt Requested to make 14891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * sure we come back to process the remaining RFDs. 14901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 14911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (i == IPG_MAXRFDPROCESS_COUNT) 14921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(ipg_r32(ASIC_CTRL) | IPG_AC_INT_REQUEST, ASIC_CTRL); 14931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 14941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#ifdef IPG_DEBUG 14951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Check if the RFD list contained no receive frame data. */ 14961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!i) 14971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->EmptyRFDListCount++; 14981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#endif 1499325a80715f6dba4b12479f8bb011d96093a47374Al Viro while ((le64_to_cpu(rxfd->rfs) & IPG_RFS_RFDDONE) && 1500325a80715f6dba4b12479f8bb011d96093a47374Al Viro !((le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMESTART) && 1501325a80715f6dba4b12479f8bb011d96093a47374Al Viro (le64_to_cpu(rxfd->rfs) & IPG_RFS_FRAMEEND))) { 15021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = curr++ % IPG_RFDLIST_LENGTH; 15031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rxfd = sp->rxd + entry; 15051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1506c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("Frame requires multiple RFDs\n"); 15071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* An unexpected event, additional code needed to handle 15091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * properly. So for the time being, just disregard the 15101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * frame. 15111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 15121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Free the memory associated with the RX 15141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * buffer since it is erroneous and we will 15151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * not pass it to higher layer processes. 15161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 15179893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->rx_buff[entry]) { 15181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 1519325a80715f6dba4b12479f8bb011d96093a47374Al Viro le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, 15201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 15219893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->rx_buff[entry]); 15221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 15231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Assure RX buffer is not reused by IPG. */ 15259893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[entry] = NULL; 15261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 15271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_current = curr; 15291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Check to see if there are a minimum number of used 15311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * RFDs before restoring any (should improve performance.) 15321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 15331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if ((curr - sp->rx_dirty) >= IPG_MINUSEDRFDSTOFREE) 15341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_rxrestore(dev); 15351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 15371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 15381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_reset_after_host_error(struct work_struct *work) 15401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 15411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = 15421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu container_of(work, struct ipg_nic_private, task.work); 15431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct net_device *dev = sp->dev; 15441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 15461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Acknowledge HostError interrupt by resetting 15471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IPG DMA and HOST. 15481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 15491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_reset(dev, IPG_AC_GLOBAL_RESET | IPG_AC_HOST | IPG_AC_DMA); 15501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu init_rfdlist(dev); 15521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu init_tfdlist(dev); 15531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (ipg_io_config(dev) < 0) { 1555c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Cannot recover from PCI error\n"); 15561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu schedule_delayed_work(&sp->task, HZ); 15571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 15581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 15591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic irqreturn_t ipg_interrupt_handler(int irq, void *dev_inst) 15611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 15621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct net_device *dev = dev_inst; 15631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 15641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 15651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int handled = 0; 15661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 status; 15671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_interrupt_handler\n"); 15691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1570024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg if (sp->is_jumbo) 1571024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg ipg_nic_rxrestore(dev); 1572024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg 1573227bc24d675d80de1cfb3ab72891cc932dadbc3bFrancois Romieu spin_lock(&sp->lock); 1574227bc24d675d80de1cfb3ab72891cc932dadbc3bFrancois Romieu 15751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Get interrupt source information, and acknowledge 15761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * some (i.e. TxDMAComplete, RxDMAComplete, RxEarly, 15771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IntRequested, MacControlFrame, LinkEvent) interrupts 15781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * if issued. Also, all IPG interrupts are disabled by 15791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * reading IntStatusAck. 15801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 15811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu status = ipg_r16(INT_STATUS_ACK); 15821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1583c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("IntStatusAck = %04x\n", status); 15841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Shared IRQ of remove event. */ 15861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!(status & IPG_IS_RSVD_MASK)) 15871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto out_enable; 15881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu handled = 1; 15901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (unlikely(!netif_running(dev))) 1592227bc24d675d80de1cfb3ab72891cc932dadbc3bFrancois Romieu goto out_unlock; 15931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If RFDListEnd interrupt, restore all used RFDs. */ 15951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_RFD_LIST_END) { 1596c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RFDListEnd Interrupt\n"); 15971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 15981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* The RFD list end indicates an RFD was encountered 15991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * with a 0 NextPtr, or with an RFDDone bit set to 1 16001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * (indicating the RFD is not read for use by the 16011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IPG.) Try to restore all RFDs. 16021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 16031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_rxrestore(dev); 16041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#ifdef IPG_DEBUG 16061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Increment the RFDlistendCount counter. */ 16071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->RFDlistendCount++; 16081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#endif 16091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 16101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If RFDListEnd, RxDMAPriority, RxDMAComplete, or 16121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IntRequested interrupt, process received frames. */ 16131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if ((status & IPG_IS_RX_DMA_PRIORITY) || 16141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (status & IPG_IS_RFD_LIST_END) || 16151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (status & IPG_IS_RX_DMA_COMPLETE) || 16161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (status & IPG_IS_INT_REQUESTED)) { 16171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#ifdef IPG_DEBUG 16181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Increment the RFD list checked counter if interrupted 16191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * only to check the RFD list. */ 16201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & (~(IPG_IS_RX_DMA_PRIORITY | IPG_IS_RFD_LIST_END | 16211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IS_RX_DMA_COMPLETE | IPG_IS_INT_REQUESTED) & 16221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (IPG_IS_HOST_ERROR | IPG_IS_TX_DMA_COMPLETE | 16231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IS_LINK_EVENT | IPG_IS_TX_COMPLETE | 16241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IS_UPDATE_STATS))) 16251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->RFDListCheckedCount++; 16261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu#endif 16271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 1628024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg if (sp->is_jumbo) 1629024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg ipg_nic_rx_jumbo(dev); 1630024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg else 1631024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg ipg_nic_rx(dev); 16321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 16331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If TxDMAComplete interrupt, free used TFDs. */ 16351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_TX_DMA_COMPLETE) 16361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_txfree(dev); 16371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* TxComplete interrupts indicate one of numerous actions. 16391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Determine what action to take based on TXSTATUS register. 16401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 16411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_TX_COMPLETE) 16421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_txcleanup(dev); 16431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If UpdateStats interrupt, update Linux Ethernet statistics */ 16451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_UPDATE_STATS) 16461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_nic_get_stats(dev); 16471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If HostError interrupt, reset IPG. */ 16491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_HOST_ERROR) { 16501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DDEBUG_MSG("HostError Interrupt\n"); 16511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu schedule_delayed_work(&sp->task, 0); 16531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 16541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If LinkEvent interrupt, resolve autonegotiation. */ 16561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_LINK_EVENT) { 16571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (ipg_config_autoneg(dev) < 0) 1658c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Auto-negotiation error\n"); 16591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 16601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If MACCtrlFrame interrupt, do nothing. */ 16621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_MAC_CTRL_FRAME) 1663c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("MACCtrlFrame interrupt\n"); 16641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If RxComplete interrupt, do nothing. */ 16661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_RX_COMPLETE) 1667c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RxComplete interrupt\n"); 16681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If RxEarly interrupt, do nothing. */ 16701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (status & IPG_IS_RX_EARLY) 1671c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches IPG_DEBUG_MSG("RxEarly interrupt\n"); 16721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuout_enable: 16741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Re-enable IPG interrupts. */ 16751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(IPG_IE_TX_DMA_COMPLETE | IPG_IE_RX_DMA_COMPLETE | 16761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IE_HOST_ERROR | IPG_IE_INT_REQUESTED | IPG_IE_TX_COMPLETE | 16771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_IE_LINK_EVENT | IPG_IE_UPDATE_STATS, INT_ENABLE); 1678227bc24d675d80de1cfb3ab72891cc932dadbc3bFrancois Romieuout_unlock: 16791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu spin_unlock(&sp->lock); 1680227bc24d675d80de1cfb3ab72891cc932dadbc3bFrancois Romieu 16811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return IRQ_RETVAL(handled); 16821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 16831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_rx_clear(struct ipg_nic_private *sp) 16851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 16861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 16871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_RFDLIST_LENGTH; i++) { 16899893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->rx_buff[i]) { 16901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_rx *rxfd = sp->rxd + i; 16911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 16929893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->rx_buff[i]); 16939893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->rx_buff[i] = NULL; 16941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 1695325a80715f6dba4b12479f8bb011d96093a47374Al Viro le64_to_cpu(rxfd->frag_info) & ~IPG_RFI_FRAGLEN, 16961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rx_buf_sz, PCI_DMA_FROMDEVICE); 16971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 16981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 16991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 17001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_tx_clear(struct ipg_nic_private *sp) 17021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 17031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 17041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < IPG_TFDLIST_LENGTH; i++) { 17069893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->tx_buff[i]) { 17071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_tx *txfd = sp->txd + i; 17081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unmap_single(sp->pdev, 1710325a80715f6dba4b12479f8bb011d96093a47374Al Viro le64_to_cpu(txfd->frag_info) & ~IPG_TFI_FRAGLEN, 17119893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->tx_buff[i]->len, PCI_DMA_TODEVICE); 17121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17139893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg dev_kfree_skb_irq(sp->tx_buff[i]); 17141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17159893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->tx_buff[i] = NULL; 17161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 17171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 17181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 17191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_nic_open(struct net_device *dev) 17211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 17221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 17231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 17241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct pci_dev *pdev = sp->pdev; 17251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 17261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_open\n"); 17281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 172939f205854c829294f9b4db65100d3abdf9c9c145Pekka Enberg sp->rx_buf_sz = sp->rxsupport_size; 17301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Check for interrupt line conflicts, and request interrupt 17321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * line for IPG. 17331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * 17341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IMPORTANT: Disable IPG interrupts prior to registering 17351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * IRQ. 17361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 17371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(0x0000, INT_ENABLE); 17381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Register the interrupt line to be used by the IPG within 17401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * the Linux system. 17411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 174290145c9cae26002ebfb61f6566f6f15ca448f5d3Julia Lawall rc = request_irq(pdev->irq, ipg_interrupt_handler, IRQF_SHARED, 17431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->name, dev); 17441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) { 1745c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Error when requesting interrupt\n"); 17461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto out; 17471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 17481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->irq = pdev->irq; 17501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = -ENOMEM; 17521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->rxd = dma_alloc_coherent(&pdev->dev, IPG_RX_RING_BYTES, 17541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu &sp->rxd_map, GFP_KERNEL); 17551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!sp->rxd) 17561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_free_irq_0; 17571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->txd = dma_alloc_coherent(&pdev->dev, IPG_TX_RING_BYTES, 17591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu &sp->txd_map, GFP_KERNEL); 17601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!sp->txd) 17611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_free_rx_1; 17621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = init_rfdlist(dev); 17641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) { 1765c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Error during configuration\n"); 17661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_free_tx_2; 17671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 17681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu init_tfdlist(dev); 17701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = ipg_io_config(dev); 17721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) { 1773c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Error during configuration\n"); 17741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_release_tfdlist_3; 17751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 17761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Resolve autonegotiation. */ 17781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (ipg_config_autoneg(dev) < 0) 1779c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Auto-negotiation error\n"); 17801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* initialize JUMBO Frame control variable */ 17829893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->jumbo.found_start = 0; 17839893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->jumbo.current_size = 0; 1784e8399fed7e9f2e76eb65852612b16732129b9f3fPekka Enberg sp->jumbo.skb = NULL; 178583042955210aaee70b881240fe4f5e8409235308Pekka Enberg 17861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Enable transmit and receive operation of the IPG. */ 17871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_RX_ENABLE | IPG_MC_TX_ENABLE) & 17881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_MC_RSVD_MASK, MAC_CTRL); 17891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_start_queue(dev); 17911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuout: 17921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 17931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 17941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_release_tfdlist_3: 17951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_tx_clear(sp); 17961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_rx_clear(sp); 17971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_free_tx_2: 17981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dma_free_coherent(&pdev->dev, IPG_TX_RING_BYTES, sp->txd, sp->txd_map); 17991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_free_rx_1: 18001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dma_free_coherent(&pdev->dev, IPG_RX_RING_BYTES, sp->rxd, sp->rxd_map); 18011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_free_irq_0: 18021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu free_irq(pdev->irq, dev); 18031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto out; 18041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 18051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_nic_stop(struct net_device *dev) 18071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 18081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 18091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 18101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct pci_dev *pdev = sp->pdev; 18111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_stop\n"); 18131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_stop_queue(dev); 18151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DUMPTFDLIST(dev); 18171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu do { 18191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (void) ipg_r16(INT_STATUS_ACK); 18201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_reset(dev, IPG_AC_GLOBAL_RESET | IPG_AC_HOST | IPG_AC_DMA); 18221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu synchronize_irq(pdev->irq); 18241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } while (ipg_r16(INT_ENABLE) & IPG_IE_RSVD_MASK); 18251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_rx_clear(sp); 18271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_tx_clear(sp); 18291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_free_consistent(pdev, IPG_RX_RING_BYTES, sp->rxd, sp->rxd_map); 18311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_free_consistent(pdev, IPG_TX_RING_BYTES, sp->txd, sp->txd_map); 18321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu free_irq(pdev->irq, dev); 18341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return 0; 18361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 18371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 183861357325f377889a1daffa14962d705dc814dd0eStephen Hemmingerstatic netdev_tx_t ipg_nic_hard_start_xmit(struct sk_buff *skb, 183961357325f377889a1daffa14962d705dc814dd0eStephen Hemminger struct net_device *dev) 18401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 18411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 18421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 18431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int entry = sp->tx_current % IPG_TFDLIST_LENGTH; 18441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned long flags; 18451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_tx *txfd; 18461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DDEBUG_MSG("_nic_hard_start_xmit\n"); 18481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* If in 10Mbps mode, stop the transmit queue so 18501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * no more transmit frames are accepted. 18511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 18521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (sp->tenmbpsmode) 18531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu netif_stop_queue(dev); 18541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18559893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg if (sp->reset_current_tfd) { 18569893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->reset_current_tfd = 0; 18571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu entry = 0; 18581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 18591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd = sp->txd + entry; 18611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18629893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->tx_buff[entry] = skb; 18631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Clear all TFC fields, except TFDDONE. */ 18651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc = cpu_to_le64(IPG_TFC_TFDDONE); 18661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Specify the TFC field within the TFD. */ 18681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_WORDALIGNDISABLED | 186948f5fec5486286103c4423fc78fdf3a15530c3b9Al Viro (IPG_TFC_FRAMEID & sp->tx_current) | 18701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu (IPG_TFC_FRAGCOUNT & (1 << 24))); 187148f5fec5486286103c4423fc78fdf3a15530c3b9Al Viro /* 187248f5fec5486286103c4423fc78fdf3a15530c3b9Al Viro * 16--17 (WordAlign) <- 3 (disable), 187348f5fec5486286103c4423fc78fdf3a15530c3b9Al Viro * 0--15 (FrameId) <- sp->tx_current, 187448f5fec5486286103c4423fc78fdf3a15530c3b9Al Viro * 24--27 (FragCount) <- 1 187548f5fec5486286103c4423fc78fdf3a15530c3b9Al Viro */ 18761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Request TxComplete interrupts at an interval defined 18781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * by the constant IPG_FRAMESBETWEENTXCOMPLETES. 18791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Request TxComplete interrupt for every frame 188025985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * if in 10Mbps mode to accommodate problem with 10Mbps 18811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * processing. 18821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 18831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (sp->tenmbpsmode) 18841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_TXINDICATE); 188547cccd7d7cc1f2b6f34aadc9041fb991c6293cddFrancois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_TXDMAINDICATE); 18861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Based on compilation option, determine if FCS is to be 18871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * appended to transmit frame by IPG. 18881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 18891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!(IPG_APPEND_FCS_ON_TX)) 18901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_FCSAPPENDDISABLE); 18911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Based on compilation option, determine if IP, TCP and/or 18931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * UDP checksums are to be added to transmit frame by IPG. 18941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 18951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (IPG_ADD_IPCHECKSUM_ON_TX) 18961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_IPCHECKSUMENABLE); 18971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 18981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (IPG_ADD_TCPCHECKSUM_ON_TX) 18991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_TCPCHECKSUMENABLE); 19001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (IPG_ADD_UDPCHECKSUM_ON_TX) 19021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_UDPCHECKSUMENABLE); 19031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Based on compilation option, determine if VLAN tag info is to be 19051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * inserted into transmit frame by IPG. 19061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 19071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (IPG_INSERT_MANUAL_VLAN_TAG) { 19081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc |= cpu_to_le64(IPG_TFC_VLANTAGINSERT | 19091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ((u64) IPG_MANUAL_VLAN_VID << 32) | 19101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ((u64) IPG_MANUAL_VLAN_CFI << 44) | 19111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ((u64) IPG_MANUAL_VLAN_USERPRIORITY << 45)); 19121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 19131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* The fragment start location within system memory is defined 19151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * by the sk_buff structure's data field. The physical address 19161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * of this location within the system's virtual memory space 19171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * is determined using the IPG_HOST2BUS_MAP function. 19181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 19191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->frag_info = cpu_to_le64(pci_map_single(sp->pdev, skb->data, 19201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu skb->len, PCI_DMA_TODEVICE)); 19211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* The length of the fragment within system memory is defined by 19231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * the sk_buff structure's len field. 19241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 19251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->frag_info |= cpu_to_le64(IPG_TFI_FRAGLEN & 19261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ((u64) (skb->len & 0xffff) << 48)); 19271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Clear the TFDDone bit last to indicate the TFD is ready 19291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * for transfer to the IPG. 19301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 19311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu txfd->tfc &= cpu_to_le64(~IPG_TFC_TFDDONE); 19321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu spin_lock_irqsave(&sp->lock, flags); 19341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->tx_current++; 19361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mmiowb(); 19381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w32(IPG_DC_TX_DMA_POLL_NOW, DMA_CTRL); 19401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (sp->tx_current == (sp->tx_dirty + IPG_TFDLIST_LENGTH)) 1942dafdec746f8c468bebf6b99f32a392ee6c8d0212Francois Romieu netif_stop_queue(dev); 19431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu spin_unlock_irqrestore(&sp->lock, flags); 19451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return NETDEV_TX_OK; 19471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 19481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_set_phy_default_param(unsigned char rev, 19501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct net_device *dev, int phy_address) 19511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 19521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned short length; 19531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned char revision; 1954fc502ba0086f142639208f879e577e1b5a4eeb8eJoe Perches const unsigned short *phy_param; 19551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned short address, value; 19561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phy_param = &DefaultPhyParam[0]; 19581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu length = *phy_param & 0x00FF; 19591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu revision = (unsigned char)((*phy_param) >> 8); 19601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phy_param++; 19611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu while (length != 0) { 19621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rev == revision) { 19631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu while (length > 1) { 19641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu address = *phy_param; 19651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu value = *(phy_param + 1); 19661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phy_param += 2; 19671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mdio_write(dev, phy_address, address, value); 19681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu length -= 4; 19691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 19701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 19711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } else { 19721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phy_param += length / 2; 19731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu length = *phy_param & 0x00FF; 19741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu revision = (unsigned char)((*phy_param) >> 8); 19751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu phy_param++; 19761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 19771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 19781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 19791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int read_eeprom(struct net_device *dev, int eep_addr) 19811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 19821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = ipg_ioaddr(dev); 19831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 19841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int ret = 0; 19851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 value; 19861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu value = IPG_EC_EEPROM_READOPCODE | (eep_addr & 0xff); 19881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(value, EEPROM_CTRL); 19891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < 1000; i++) { 19911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 data; 19921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 19931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mdelay(10); 19941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu data = ipg_r16(EEPROM_CTRL); 19951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!(data & IPG_EC_EEPROM_BUSY)) { 19961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ret = ipg_r16(EEPROM_DATA); 19971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu break; 19981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 19991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 20001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return ret; 20011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 20021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void ipg_init_mii(struct net_device *dev) 20041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 20051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 20061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct mii_if_info *mii_if = &sp->mii_if; 20071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int phyaddr; 20081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_if->dev = dev; 20101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_if->mdio_read = mdio_read; 20111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_if->mdio_write = mdio_write; 20121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_if->phy_id_mask = 0x1f; 20131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_if->reg_num_mask = 0x1f; 20141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20151202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_if->phy_id = phyaddr = ipg_find_phyaddr(dev); 20161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (phyaddr != 0x1f) { 20181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu u16 mii_phyctrl, mii_1000cr; 20191202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_1000cr = mdio_read(dev, phyaddr, MII_CTRL1000); 20211202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_1000cr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF | 20221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu GMII_PHY_1000BASETCONTROL_PreferMaster; 20231202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mdio_write(dev, phyaddr, MII_CTRL1000, mii_1000cr); 20241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_phyctrl = mdio_read(dev, phyaddr, MII_BMCR); 20261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Set default phyparam */ 2028ff938e43d39e926de74b32a3656c190f979ab642Sergei Shtylyov ipg_set_phy_default_param(sp->pdev->revision, dev, phyaddr); 20291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Reset PHY */ 20311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mii_phyctrl |= BMCR_RESET | BMCR_ANRESTART; 20321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mdio_write(dev, phyaddr, MII_BMCR, mii_phyctrl); 20331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 20351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 20361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_hw_init(struct net_device *dev) 20381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 20391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 20401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr = sp->ioaddr; 20411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i; 20421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 20431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2044dea4a87cabc4ba0c09123c6e8392aa68fe437b31Pekka Enberg /* Read/Write and Reset EEPROM Value */ 20451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Read LED Mode Configuration from EEPROM */ 20469893ba16c8fb9c94729061a88bdee40ecf3a3899Pekka Enberg sp->led_mode = read_eeprom(dev, 6); 20471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Reset all functions within the IPG. Do not assert 20491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * RST_OUT as not compatible with some PHYs. 20501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 20511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = ipg_reset(dev, IPG_RESET_MASK); 20521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) 20531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto out; 20541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_init_mii(dev); 20561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Read MAC Address from EEPROM */ 20581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < 3; i++) 20591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->station_addr[i] = read_eeprom(dev, 16 + i); 20601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu for (i = 0; i < 3; i++) 20621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ipg_w16(sp->station_addr[i], STATION_ADDRESS_0 + 2*i); 20631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Set station address in ethernet_device structure. */ 20651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->dev_addr[0] = ipg_r16(STATION_ADDRESS_0) & 0x00ff; 20661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->dev_addr[1] = (ipg_r16(STATION_ADDRESS_0) & 0xff00) >> 8; 20671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->dev_addr[2] = ipg_r16(STATION_ADDRESS_1) & 0x00ff; 20681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->dev_addr[3] = (ipg_r16(STATION_ADDRESS_1) & 0xff00) >> 8; 20691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->dev_addr[4] = ipg_r16(STATION_ADDRESS_2) & 0x00ff; 20701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->dev_addr[5] = (ipg_r16(STATION_ADDRESS_2) & 0xff00) >> 8; 20711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuout: 20721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 20731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 20741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 20761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 20771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 20781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 20791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_lock(&sp->mii_mutex); 20811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = generic_mii_ioctl(&sp->mii_if, if_mii(ifr), cmd, NULL); 20821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_unlock(&sp->mii_mutex); 20831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 20851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 20861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_nic_change_mtu(struct net_device *dev, int new_mtu) 20881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 2089da02b23192e8c1dc6830fc38840ea1c5e416a43cPekka Enberg struct ipg_nic_private *sp = netdev_priv(dev); 2090532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg int err; 2091da02b23192e8c1dc6830fc38840ea1c5e416a43cPekka Enberg 209225985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* Function to accommodate changes to Maximum Transfer Unit 20931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * (or MTU) of IPG NIC. Cannot use default function since 20941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * the default will not allow for MTU > 1500 bytes. 20951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 20961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 20971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_nic_change_mtu\n"); 20981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2099532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg /* 2100532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg * Check that the new MTU value is between 68 (14 byte header, 46 byte 2101532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg * payload, 4 byte FCS) and 10 KB, which is the largest supported MTU. 21021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 2103532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg if (new_mtu < 68 || new_mtu > 10240) 21041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return -EINVAL; 21051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2106532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg err = ipg_nic_stop(dev); 2107532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg if (err) 2108532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg return err; 2109532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg 21101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev->mtu = new_mtu; 21111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2112532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->max_rxframe_size = new_mtu; 2113532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg 2114532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->rxfrag_size = new_mtu; 2115532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg if (sp->rxfrag_size > 4088) 2116532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->rxfrag_size = 4088; 2117532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg 2118532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->rxsupport_size = sp->max_rxframe_size; 2119532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg 2120532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg if (new_mtu > 0x0600) 2121532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->is_jumbo = true; 2122532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg else 2123532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->is_jumbo = false; 2124532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg 2125532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg return ipg_nic_open(dev); 21261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 21271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 21291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 21301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 21311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 21321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_lock(&sp->mii_mutex); 21341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = mii_ethtool_gset(&sp->mii_if, cmd); 21351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_unlock(&sp->mii_mutex); 21361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 21381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 21391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) 21411202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 21421202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 21431202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 21441202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21451202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_lock(&sp->mii_mutex); 21461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = mii_ethtool_sset(&sp->mii_if, cmd); 21471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_unlock(&sp->mii_mutex); 21481202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 21501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 21511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int ipg_nway_reset(struct net_device *dev) 21531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 21541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 21551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 21561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_lock(&sp->mii_mutex); 21581202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = mii_nway_restart(&sp->mii_if); 21591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_unlock(&sp->mii_mutex); 21601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 21621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 21631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21640fc0b732eaa38beb93a6fb62f77c7bd9622c76ecStephen Hemmingerstatic const struct ethtool_ops ipg_ethtool_ops = { 21651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .get_settings = ipg_get_settings, 21661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .set_settings = ipg_set_settings, 21671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .nway_reset = ipg_nway_reset, 21681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 21691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2170ef3122463d18c0a05b85654473b855a2af494221Adrian Bunkstatic void __devexit ipg_remove(struct pci_dev *pdev) 21711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 21721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct net_device *dev = pci_get_drvdata(pdev); 21731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp = netdev_priv(dev); 21741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu IPG_DEBUG_MSG("_remove\n"); 21761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Un-register Ethernet device. */ 21781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unregister_netdev(dev); 21791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21801202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_iounmap(pdev, sp->ioaddr); 21811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_release_regions(pdev); 21831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 21841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu free_netdev(dev); 21851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_disable_device(pdev); 21861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_set_drvdata(pdev, NULL); 21871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 21881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 218904fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemmingerstatic const struct net_device_ops ipg_netdev_ops = { 219004fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_open = ipg_nic_open, 219104fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_stop = ipg_nic_stop, 219204fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_start_xmit = ipg_nic_hard_start_xmit, 219304fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_get_stats = ipg_nic_get_stats, 2194afc4b13df143122f99a0eb10bfefb216c2806de0Jiri Pirko .ndo_set_rx_mode = ipg_nic_set_multicast_list, 219504fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_do_ioctl = ipg_ioctl, 219604fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_tx_timeout = ipg_tx_timeout, 219704fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_change_mtu = ipg_nic_change_mtu, 219804fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_set_mac_address = eth_mac_addr, 219904fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger .ndo_validate_addr = eth_validate_addr, 220004fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger}; 220104fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger 22021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int __devinit ipg_probe(struct pci_dev *pdev, 22031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu const struct pci_device_id *id) 22041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 22051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu unsigned int i = id->driver_data; 22061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct ipg_nic_private *sp; 22071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu struct net_device *dev; 22081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu void __iomem *ioaddr; 22091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu int rc; 22101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = pci_enable_device(pdev); 22121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) 22131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto out; 22141202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2215c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches pr_info("%s: %s\n", pci_name(pdev), ipg_brand_name[i]); 22161202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22171202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_set_master(pdev); 22181202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 221950cf156af7dc68a44409bef636585ef88ebbab34Yang Hongyang rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); 22201202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) { 2221284901a90a9e0b812ca3f5f852cbbfb60d10249dYang Hongyang rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 22221202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) { 2223c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches pr_err("%s: DMA config failed\n", pci_name(pdev)); 22241202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_disable_0; 22251202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 22261202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 22271202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22281202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* 22291202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu * Initialize net device. 22301202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 22311202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu dev = alloc_etherdev(sizeof(struct ipg_nic_private)); 22321202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!dev) { 22331202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = -ENOMEM; 22341202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_disable_0; 22351202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 22361202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22371202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp = netdev_priv(dev); 22381202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu spin_lock_init(&sp->lock); 22391202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu mutex_init(&sp->mii_mutex); 22401202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2241532f4aee934cf26f1905fae101ac9f0ba3087f21Pekka Enberg sp->is_jumbo = IPG_IS_JUMBO; 224218a9cdb9c7ec88f6e94cd8dcb03fb6cded067119Pekka Enberg sp->rxfrag_size = IPG_RXFRAG_SIZE; 224339f205854c829294f9b4db65100d3abdf9c9c145Pekka Enberg sp->rxsupport_size = IPG_RXSUPPORT_SIZE; 2244da02b23192e8c1dc6830fc38840ea1c5e416a43cPekka Enberg sp->max_rxframe_size = IPG_MAX_RXFRAME_SIZE; 2245024f4d88b45003710e8e2ee937b0c56aaf2dff2dPekka Enberg 22461202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Declare IPG NIC functions for Ethernet device methods. 22471202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu */ 224804fb5f735e70a27f7dd06a5e349c003fd5d4bfa2Stephen Hemminger dev->netdev_ops = &ipg_netdev_ops; 22491202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu SET_NETDEV_DEV(dev, &pdev->dev); 22501202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu SET_ETHTOOL_OPS(dev, &ipg_ethtool_ops); 22511202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22521202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = pci_request_regions(pdev, DRV_NAME); 22531202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc) 22541202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_free_dev_1; 22551202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22561202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu ioaddr = pci_iomap(pdev, 1, pci_resource_len(pdev, 1)); 22571202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (!ioaddr) { 2258c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches pr_err("%s: cannot map MMIO\n", pci_name(pdev)); 22591202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = -EIO; 22601202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_release_regions_2; 22611202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu } 22621202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22631202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu /* Save the pointer to the PCI device information. */ 22641202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->ioaddr = ioaddr; 22651202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->pdev = pdev; 22661202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu sp->dev = dev; 22671202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22681202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu INIT_DELAYED_WORK(&sp->task, ipg_reset_after_host_error); 22691202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22701202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_set_drvdata(pdev, dev); 22711202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22721202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = ipg_hw_init(dev); 22731202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) 22741202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_unmap_3; 22751202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22761202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu rc = register_netdev(dev); 22771202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu if (rc < 0) 22781202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto err_unmap_3; 22791202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 2280c9ea53d0e720ce4af774d7e5046819761eb54e0aJoe Perches netdev_info(dev, "Ethernet device registered\n"); 22811202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuout: 22821202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return rc; 22831202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22841202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_unmap_3: 22851202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_iounmap(pdev, ioaddr); 22861202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_release_regions_2: 22871202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_release_regions(pdev); 22881202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_free_dev_1: 22891202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu free_netdev(dev); 22901202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieuerr_disable_0: 22911202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_disable_device(pdev); 22921202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu goto out; 22931202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 22941202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 22951202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic struct pci_driver ipg_pci_driver = { 22961202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .name = IPG_DRIVER_NAME, 22971202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .id_table = ipg_pci_tbl, 22981202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .probe = ipg_probe, 22991202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu .remove = __devexit_p(ipg_remove), 23001202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu}; 23011202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 23021202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic int __init ipg_init_module(void) 23031202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 23041202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu return pci_register_driver(&ipg_pci_driver); 23051202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 23061202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 23071202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieustatic void __exit ipg_exit_module(void) 23081202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu{ 23091202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu pci_unregister_driver(&ipg_pci_driver); 23101202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu} 23111202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieu 23121202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieumodule_init(ipg_init_module); 23131202d6ff356cc66dc8d2b85546eb4f187f9e1f25Francois Romieumodule_exit(ipg_exit_module); 2314