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path: root/drivers/s390/net/qeth_l3_main.c
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* qeth: allow dynamic change of rx checksummingFrank Blaschka2009-11-161-14/+30
| | | | | | | | Technically there is no need to set the card offline to change RX checksumming. Get rid of this stupid limitation. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: rework TSO functionsFrank Blaschka2009-11-161-13/+58
| | | | | | | | | | | The maximum TSO size OSA can handle is 15 * PAGE_SIZE. This patch reduces gso_max_size to this value and adds some sanity checks and statistics to the TSO implementation. Since only layer 3 is able to do TSO move all TSO related functions to the qeth_l3 module. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: Recognize return codes of ccw_device_set_onlineUrsula Braun2009-11-161-18/+7
| | | | | | | | | | | | | | Setting a qeth device online requires to call function ccw_device_set_online() for read-, write-, and data-subchannel. Failures should be detected immediately without an attempt to invoke follow-on activity qeth_qdio_clear_card()., In addition, ccw_device_set_online calls are consolidated in qeth_core_main.c only. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: Exploit Connection IsolationEinar Lueck2009-11-161-0/+2
| | | | | | | | | | | Isolate data connection to a shared OSA card against other data connections to the same OSA card. Connectivity between isolated data connections sharing the same OSA card is therefore possible only through external network gear (e.g. a router). Signed-off-by: Einar Lueck <elelueck@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: Convert ethtool get_stats_count() ops to get_sset_count()Ben Hutchings2009-10-051-1/+1
| | | | | | | | | This string query operation was supposed to be replaced by the generic get_sset_count() starting in 2007. Convert qeth's implementation. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers: Kill now superfluous ->last_rx storesEric Dumazet2009-09-021-1/+0
| | | | | | | | | | The generic packet receive code takes care of setting netdev->last_rx when necessary, for the sake of the bonding ARP monitor. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Neil Horman <nhorman@txudriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: drivers should make ethtool_ops constStephen Hemminger2009-09-021-1/+1
| | | | | | | No need to put ethtool_ops in data, they should be const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: Cleanup for cast-type determination.Klaus-Dieter Wacker2009-08-261-1/+46
| | | | | | | | | Clear separation of cast-type determination (send path) for layer-2 resp. layer-3. Allowing to have inline functions for qeth layer- discipline. Signed-off-by: Klaus-Dieter Wacker <kdwacker@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: scheduling while atomic during ifconfig online sequenceFrank Blaschka2009-08-261-0/+1
| | | | | | | | | | | In case the IP address list contains entries (not removed when the device was set offline) this entries should be registered next time the device is brought online. In the past this was done implicitly with the device open call but since we wait in the set IPv4 IPA and the device open common code holds various locks this does not work any longer. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert remaining non-symbolic return values in ndo_start_xmit() functionsPatrick McHardy2009-07-051-0/+1
| | | | | | | | | | | | This patch converts the remaining occurences of raw return values to their symbolic counterparts in ndo_start_xmit() functions that were missed by the previous automatic conversion. Additionally code that assumed the symbolic value of NETDEV_TX_OK to be zero is changed to explicitly use NETDEV_TX_OK. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [S390] pm: qeth driver power management callbacksFrank Blaschka2009-06-161-1/+51
| | | | | Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* net: skb->dst accessorsEric Dumazet2009-06-031-4/+4
| | | | | | | | | | | | | | | | | | Define three accessors to get/set dst attached to a skb struct dst_entry *skb_dst(const struct sk_buff *skb) void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst) void skb_dst_drop(struct sk_buff *skb) This one should replace occurrences of : dst_release(skb->dst) skb->dst = NULL; Delete skb->dst field Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: unset IFF_XMIT_DST_RELEASE for qeth and ipoibEric Dumazet2009-05-301-0/+1
| | | | | | | | | Last two drivers that need skb->dst in their start_xmit() function Tell dev_hard_start_xmit() to no release it by unsetting IFF_XMIT_DST_RELEASE Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: omit upstream checksumming for HiperSocketsUrsula Braun2009-05-201-7/+13
| | | | | | | | | | | For HiperSocket devices receive-path checksumming is not required. Thus NO_CHECKSUMMING is used as default for HiperSocket interfaces. For layer3 devices configured with NO_CHECKSUMMING received skbs should have set their ip_summed field to CHECKSUM_UNNECESSARY. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: avoid crash after detach of replugged deviceUrsula Braun2009-05-201-1/+3
| | | | | | | | | | | | | | | | | | | If a qeth device is plugged off, setting the device online stops in state HARDSETUP and a failure is reported to the base cio-layer causing halt/clear to be invoked. Replugging the device again triggers a qeth recovery without notification of the cio-layer. If a device is ungrouped in this state, the qeth set_offline function is not invoked, because the corresponding ccwgroup device is not in state ONLINE. Then incoming traffic is still handled by the qdio layer resulting in a crash in qeth_l<x>_qdio_input_handler, because (part of) the qeth data structures for this device are already removed. Solution: After replugging the device qeth recovery should lead to a working net device. Thus a "LAN offline" result when setting a qeth device online must not report a failure to the base cio-layer. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: check for completion of a running recoveryUrsula Braun2009-03-251-0/+7
| | | | | | | | | | | When a recovery is started for a qeth device, additional invocations to change a mac address, to configure a VLAN interface on top, or to add multicast addresses should wait till recovery is finished, otherwise recovery might fail. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: remove EDDPFrank Blaschka2009-03-251-46/+77
| | | | | | | | Performance measurements showed EDDP does not lower CPU costs but increase them. So we dump out EDDP code from qeth driver. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: add statistics for tx csumFrank Blaschka2009-03-251-1/+4
| | | | | | | Add statistics counter for software tx checksumming. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-03-251-1/+1
| | | | | | | | | Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: fix usage of netdev_opsFrank Blaschka2009-01-111-4/+20
| | | | | | | Have separate netdev_ops for OSA and HiperSocket/TR. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-01-081-2/+0
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * s390: remove s390_root_dev_*()Mark McLoughlin2009-01-061-2/+0
| | | | | | | | | | | | | | | | | | | | | | Replace s390_root_dev_register() with root_device_register() etc. [Includes fix from Cornelia Huck] Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | qeth: convert to net_device_opsFrank Blaschka2009-01-081-35/+18
|/ | | | | | | | | qeth_l2, qeth_l3 convert to net_device_ops. qeth_l3 remove vlan neigh_setup hack since it does not work any longer with the new net_device_ops. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: get rid of extra argument after printk to dev_* conversionHeiko Carstens2009-01-041-1/+1
| | | | | | | | | drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_setadapter_parms': drivers/s390/net/qeth_l3_main.c:1049: warning: too many arguments for format Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: avoid crash in case of layer mismatch for VSWITCHUrsula Braun2009-01-041-3/+5
| | | | | | | | | | | | | | For z/VM GuestLAN or VSWITCH devices the transport layer is configured in z/VM. The layer2 attribute of a participating Linux device has to match the z/VM definition. In case of a mismatch Linux currently crashes in qeth recovery due to a reference to the not yet existing net_device. Solution: add a check for existence of net_device and add a message pointing to the mismatch of layer definitions in Linux and z/VM. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: exploit source MAC address for inbound layer3 packetsUrsula Braun2009-01-041-7/+9
| | | | | | | | | | | OSA-devices operating in layer3 mode offer adding of the source MAC address to the QDIO header of inbound packets. The qeth driver can exploit this functionality to replace FAKELL-entries in the ethernet header of received packets. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [S390] convert qeth printks to dev_xxx and pr_xxx macros.Frank Blaschka2008-12-251-101/+110
| | | | | Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* qeth: remove non-recover-thread checkingsUrsula Braun2008-10-271-12/+1
| | | | | | | | | | IP-threads have been removed from the qeth driver. Only the recover-thread is left over. This makes checkings for non-recover threads superfluous. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: avoid qeth recovery problemsUrsula Braun2008-09-241-3/+5
| | | | | | | | | | | | | Do not touch IFF_UP flag during qeth recovery, but invoke dev_close() in case of failing recovery. Cancel outstanding control commands in case of Data Checks or Channel Checks. Do not invoke qeth_l2_del_all_mc() in case of a hard stop to speed up removal of qeth devices. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [S390] qeth: preallocated qeth header for hiper socketFrank Blaschka2008-08-011-13/+38
| | | | | | | | | For hiper socket devices this patch will economize the reallocation of the tx skb data segment by allocating separate memory for the qdio transport information (qeth header). Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* qeth: use dev->ml_priv instead of dev->privHeiko Carstens2008-07-261-15/+15
| | | | | | | | | | | From: Heiko Carstens <heiko.carstens@de.ibm.com> This makes qeth working again after git commit e3c50d5d25ac09efd9acbe2b2a3e365466de84ed "netdev: netdev_priv() can now be sane again.". Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: fix build error caused by VLAN changesfrank.blaschka@de.ibm.com2008-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | Adrian Bunk reports this build error: CC drivers/s390/net/qeth_l3_main.o /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_hard_start_xmit': /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/s390/net/qeth_l3_main.c: 2654: error: implicit declaration of function 'VLAN_TX_SKB_CB' /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/s390/net/qeth_l3_main.c: 2654: error: invalid type argument of '->' (have 'int') make[3]: *** [drivers/s390/net/qeth_l3_main.o] Error 1 The intention of the driver appears to be to invalidate the VLAN tag. Change it to set skb->vlan_tci to zero, which has the same effect. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Merge branch 'master' of ↵David S. Miller2008-07-181-22/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
| * [S390] qdio: new qdio driver.Jan Glauber2008-07-171-14/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | List of major changes: - split qdio driver into several files - seperation of thin interrupt code - improved handling for multiple thin interrupt devices - inbound and outbound processing now always runs in tasklet context - significant less tasklet schedules per interrupt needed - merged qebsm with non-qebsm handling - cleanup qdio interface and added kerneldoc - coding style Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com> Reviewed-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * [S390] Cleanup qeth print messages.Frank Blaschka2008-07-141-8/+1
| | | | | | | | | | | | | | Cc: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
* | vlan: move struct vlan_dev_info to private headerPatrick McHardy2008-07-081-2/+2
|/ | | | | | | | | Hide struct vlan_dev_info from drivers to prevent them from growing more creative ways to use it. Provide accessors for the two drivers that currently use it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: start dev queue after tx drop errorFrank Blaschka2008-06-101-0/+1
| | | | | | | | | In case the xmit function drop out with an error, we have to wake the netdevice queue to start another xmit. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: reduce number of kernel messagesFrank Blaschka2008-06-101-50/+22
| | | | | | | | Remove unnecessary messages. Write important debug information to s390dbf. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: layer 3 Oops in ip event handlerFrank Blaschka2008-06-101-1/+1
| | | | | | | | The ip event handler may present us non qeth network interfaces. Add qeth card pointer check. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: layer 3 add missing dev_open/close to ccwgroup handlerFrank Blaschka2008-04-291-2/+13
| | | | | | | | In case the ccwgroup device is set online/offline we have to run the corresponding dev_open/close for the netdevice. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: rework fast pathFrank Blaschka2008-04-291-5/+0
| | | | | | | | Remove unnecessary traces. Remove unnecessary wrappers for skb functions. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: provide get ethtool settingsFrank Blaschka2008-04-291-0/+1
| | | | | | | | | Load balancing bonding queries the speed of the slave interfaces. To support a bond consisting of different slave speeds we have to report the speed by ethtool settings. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: layer 3 support vlan IPv6 on hiper socketFrank Blaschka2008-04-291-3/+4
| | | | | | | | hiper socket require the QETH_HDR_EXT_VLAN_FRAME flag in the qdio header to handle vlan tagged frames. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth module size reduction.Peter Tiedemann2008-04-291-2/+0
| | | | | | | | | Replace complex macro for s390dbf calls by equivalent function. This reduces module size about 10% without visible performance impact. Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: keep ip-address after LAN_OFFLINE failureUrsula Braun2008-04-161-1/+1
| | | | | | | | | | | | | | Problem: If setting of an ip-address fails with LAN_OFFLINE, qeth does not save the ip-address in its internal list of set ip-addresses. qeth recovers after a following STARTLAN event, but cannot set the unsaved ip-address. Solution: save the ip-address in the qeth-maintained list of ip-addresses after a LAN_OFFLINE failure for SETIP. Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: improving debug message handlingPeter Tiedemann2008-04-161-141/+141
| | | | | | | | | Improving debug message handling, moving ipa into messages from kernel to dbf, some cleanups and typo fixes. Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: layer 3 do not allow to change mac addressFrank Blaschka2008-04-161-0/+1
| | | | | | | hw does not allow to change the mac address. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* qeth: improve ip_list administration after deregister failuresUrsula Braun2008-04-161-5/+9
| | | | | | | | | | | | | | | | | 1. ip_list handling after deregister failure of multicast address: If error code "MC Address not found" is returned do not re-add multicast address to ip_list. For other error codes readd multicast address at the end of function qeth_delete_all_mc. 2. ip_list handling after deregister failure or normal ip address: If error code "IP Address not found" is returned do not re-add multicast address to ip list. This is especially important in IP address takeover scenarios, to enable re-takeover of a taken over IP address. Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.YOSHIFUJI Hideaki2008-03-261-1/+1
| | | | | | | | Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* Merge branch 'upstream-net26' of ↵David S. Miller2008-03-221-2/+5
| | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 Conflicts: drivers/s390/net/qeth_main.c
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