diff options
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/if_nge.c | 69 |
1 files changed, 53 insertions, 16 deletions
diff --git a/sys/dev/pci/if_nge.c b/sys/dev/pci/if_nge.c index ad521935d14..25598f3aeaf 100644 --- a/sys/dev/pci/if_nge.c +++ b/sys/dev/pci/if_nge.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_nge.c,v 1.4 2001/07/02 06:53:43 nate Exp $ */ +/* $OpenBSD: if_nge.c,v 1.5 2001/07/06 01:55:25 angelos Exp $ */ /* * Copyright (c) 2001 Wind River Systems * Copyright (c) 1997, 1998, 1999, 2000, 2001 @@ -124,8 +124,6 @@ #include <dev/pci/if_ngereg.h> -#define NGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) - int nge_probe __P((struct device *, void *, void *)); void nge_attach __P((struct device *, struct device *, void *)); @@ -905,6 +903,7 @@ void nge_attach(parent, self, aux) ifp->if_watchdog = nge_watchdog; ifp->if_baudrate = 1000000000; ifp->if_snd.ifq_maxlen = NGE_TX_LIST_CNT - 1; + ifp->if_capabilities = IFCAP_CSUM_IPv4 | IFCAP_CSUM_TCPv4 | IFCAP_CSUM_UDPv4; DPRINTFN(5, ("bcopy\n")); bcopy(sc->sc_dv.dv_xname, ifp->if_xname, IFNAMSIZ); @@ -1279,13 +1278,22 @@ void nge_rxeof(sc) bpf_mtap(ifp->if_bpf, m); #endif -#ifdef NGE_CSUM_OFFLOAD /* Do IP checksum checking. */ - if (extsts & NGE_RXEXTSTS_IPPKT) - m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; - if (!(extsts & NGE_RXEXTSTS_IPCSUMERR)) - m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; -#endif + if (extsts & NGE_RXEXTSTS_IPPKT && + !(extsts & NGE_RXEXTSTS_IPCSUMERR)) + m->m_pkthdr.csum |= M_IPV4_CSUM_IN_OK; + else if (extsts & NGE_RXEXTSTS_IPCSUMERR) + m->m_pkthdr.csum |= M_IPV4_CSUM_IN_BAD; + if (extsts & NGE_RXEXTSTS_TCPPKT && + !(extsts & NGE_RXEXTSTS_TCPCSUMERR)) + m->m_pkthdr.csum |= M_TCP_CSUM_IN_OK; + else if (extsts & NGE_RXEXTSTS_TCPCSUMERR) + m->m_pkthdr.csum |= M_TCP_CSUM_IN_BAD; + if (extsts & NGE_RXEXTSTS_UDPPKT && + !(extsts & NGE_RXEXTSTS_UDPCSUMERR)) + m->m_pkthdr.csum |= M_UDP_CSUM_IN_OK; + else if (extsts & NGE_RXEXTSTS_UDPCSUMERR) + m->m_pkthdr.csum |= M_UDP_CSUM_IN_BAD; #if NVLAN > 0 /* @@ -1541,7 +1549,21 @@ int nge_encap(sc, m_head, txidx) if (m != NULL) return(ENOBUFS); - sc->nge_ldata->nge_tx_list[cur].nge_extsts = 0; + /* + * Card handles checksumming on a packet by packet + * basis. + */ + if (m_head->m_pkthdr.csum) { + if (m_head->m_pkthdr.csum & M_IPV4_CSUM_OUT) + sc->nge_ldata->nge_tx_list[*txidx].nge_extsts |= + NGE_TXEXTSTS_IPCSUM; + if (m_head->m_pkthdr.csum & M_TCPV4_CSUM_OUT) + sc->nge_ldata->nge_tx_list[*txidx].nge_extsts |= + NGE_TXEXTSTS_TCPCSUM; + if (m_head->m_pkthdr.csum & M_UDPV4_CSUM_OUT) + sc->nge_ldata->nge_tx_list[*txidx].nge_extsts |= + NGE_TXEXTSTS_UDPCSUM; + } #if NVLAN > 0 if (ifv != NULL) { @@ -1712,9 +1734,7 @@ void nge_init(xsc) * Enable hardware checksum validation for all IPv4 * packets, do not reject packets with bad checksums. */ -#ifdef NGE_CSUM_OFFLOAD CSR_WRITE_4(sc, NGE_VLAN_IP_RXCTL, NGE_VIPRXCTL_IPCSUM_ENB); -#endif #if NVLAN > 0 /* @@ -1733,9 +1753,7 @@ void nge_init(xsc) /* * Enable TX IPv4 checksumming on a per-packet basis. */ -#ifdef NGE_CSUM_OFFLOAD CSR_WRITE_4(sc, NGE_VLAN_IP_TXCTL, NGE_VIPTXCTL_CSUM_PER_PKT); -#endif #if NVLAN > 0 /* @@ -1759,10 +1777,12 @@ void nge_init(xsc) /* * Enable the delivery of PHY interrupts based on - * link/speed/duplex status changes. + * link/speed/duplex status changes and enable return + * of extended status information in the DMA descriptors, + * required for checksum offloading. */ NGE_SETBIT(sc, NGE_CFG, NGE_CFG_PHYINTR_SPD|NGE_CFG_PHYINTR_LNK| - NGE_CFG_PHYINTR_DUP); + NGE_CFG_PHYINTR_DUP|NGE_CFG_EXTSTS_ENB); DPRINTFN("NGE_CFG: 0x%08X\n", CSR_READ_4(sc, NGE_CFG)); @@ -1839,6 +1859,23 @@ int nge_ioctl(ifp, command, data) } switch(command) { + case SIOCSIFMTU: + if (ifr->ifr_mtu > NGE_JUMBO_MTU || ifr->ifr_mtu < ETHERMIN) + error = EINVAL; + else { + ifp->if_mtu = ifr->ifr_mtu; + /* + * If requested MTU is larger than the + * size of the TX buffer, turn off TX + * checksumming. + */ + if (ifr->ifr_mtu >= 8152) + ifp->if_capabilities = 0; + else + ifp->if_capabilities = IFCAP_CSUM_IPv4 | + IFCAP_CSUM_TCPv4 | IFCAP_CSUM_UDPv4; + } + break; case SIOCSIFADDR: ifp->if_flags |= IFF_UP; switch (ifa->ifa_addr->sa_family) { |