summaryrefslogtreecommitdiffstats
path: root/drivers/s390/net/qeth_core.h
AgeCommit message (Collapse)AuthorFilesLines
2016-09-16qeth: restore device features after recoveryHans Wippel1-0/+1
After device recovery, only a basic set of network device features is enabled on the device. If features like checksum offloading or TSO were enabled by the user before the recovery, this results in a mismatch between the network device features, that the kernel assumes to be enabled on the device, and the features actually enabled on the device. This patch tries to restore previously set features, that require changes on the device, after the recovery of a device. In case of an error, the network device's features are changed to contain only the features that are actually turned on. Signed-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16qeth layer 2 and layer 3 common feature handlingThomas Richter1-2/+3
This patch introduces a common set of fix_features and set_features functions for layer 2 and layer 3. The RX, TX and TSO offload functionality on the OSA card is enabled using ethtool at user's request and not at device initialization as done before. For layer 3 the RX checksum offloading is disabled at device initialization time. Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16qeth: optimize IP handling in rx_mode callbackLakhvich Dmitriy1-14/+6
In layer3 mode of the qeth driver, multicast IP addresses from struct net_device and other type of IP addresses from other sources require mapping to the OSA-card. This patch simplifies the IP address mapping logic, and changes imple- mentation of ndo_set_rx_mode callback and ip notifier events. Addresses are stored in private hashtables instead of lists now. It allows hardware registration/removal for new/deleted multicast addresses only. Signed-off-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Evgeny Cherkashin <Eugene.Crosser@ru.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16qeth: introduce linearization fail count to statsEugene Crosser1-0/+1
When skb data touches too many pages, skb_linearize() is called opportunistically in the hope that less pages will be required for a big linear buffer than for multiple fragments. This patch intoduces a separate counter in ethtool statistics structure representing _failed_ linearization attempts. Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com> Reviewed-by: Thomas Richter <tmricht@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16qeth: clean up condition when tso is usedEugene Crosser1-0/+6
Make conditions under which TSO is activated more stringent. Make calculation of SBALEs required for the skb more accurate. Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16qeth: refactor calculation of SBALE countEugene Crosser1-0/+13
Rewrite the functions that calculate the required number of buffer elements needed to represent SKB data, to make them hopefully more comprehensible. Plus a few cleanups. Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-14qeth use common function qeth_get_setassparms_cmdThomas Richter1-0/+4
There have been 2 identical versions of function qeth_get_setassparms_cmd() for layer 2 and layer 3. Remove the layer 3 function qeth_l3_get_setassparms_cmd() and call the common one named qeth_get_setassparms_cmd() located in qeth_core_main.c Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07s390/qeth: optimize MAC handling in rx_mode callbackLakhvich Dmitriy1-6/+13
In layer2 mode of the qeth driver, MAC address lists from struct net_device require mapping to the OSA-card. The existing implementation is inefficient for lists with more than several MAC addresses, since for every ndo_set_rx_mode callback it removes all MAC addresses first, and then registers the current MAC address list. This patch changes implementation of ndo_set_rx_mode callback in qeth, only performing hardware registration/removal for new/deleted addresses. To shorten lookup of MAC addresses registered addresses are kept in a hashtable instead of a linear list. Signed-off-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Reviewed-by: Thomas Richter <tmricht@de.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21qeth: add layer 2 RX/TX checksum offloadingThomas Richter1-0/+9
Checksum offloading for send and receive is already supported for layer 3 (IP layer). This patch adds support for RX and TX hardware checksum offloading for layer 2 (MAC layer). The hardware calculates the checksum for IP UDP and TCP packets. This patch moves the hardware checksum offloading setup to the set of common functions in qeth_core_main.c. Layer 2 and layer 3 now simply call the same common functions. Also note that TX checksum offloading is always enabled. The device driver relies on the TCP/IP stack to make use of this feature. Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21qeth: move OSA portname into deprecated statusUrsula Braun1-2/+0
An OSA-Express port name was required to identify a shared OSA port. All operating system instances that shared the port had to use the same port name. This requirement no longer applies. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-18qeth: IFF_PROMISC flag to BRIDGE PORT modeEugene Crosser1-0/+2
OSA and HiperSocket devices do not support promiscuous mode proper, but they support "BRIDGE PORT" mode that is functionally similar. This update introduces sysfs attribute that, when set, makes the driver try to "reflect" setting and resetting of the IFF_PROMISC flag on the interface into setting and resetting PRIMARY or SECONDARY bridge port role on the underlying OSA or HiperSocket device. Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-17qeth: Remove unneeded structure memberThomas Richter1-1/+0
The member irq_tasklet in the qeth_channel structure is not referenced anymore and is removed from the structure. Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26qeth: qeth_core_main make local functions staticThomas Richter1-16/+0
This patch makes some global functions static and removes the prototypes from the header file. Also function qeth_query_card_info is not exported anymore, there is no external user for it, this function should never have been exported in the first place. Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02qeth: don't query for info if hardware not ready.Eugene Crosser1-0/+1
When qeth device is queried for ethtool data, hardware operation is performed to extract the necessary information from the card. If the card is not online at the moment (e.g. it is undergoing recovery), this operation produces undesired effects like temporarily freezing the system. This patch prevents execution of the hardware query operation when the card is not online. In such case, ioctl() operation returns error with errno ENODEV. Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-07Merge branch 'for-linus' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "Mostly cleanups and bug-fixes, with two exceptions. The first is lazy flushing of I/O-TLBs for PCI to improve performance, the second is software dirty bits in the pmd for the madvise-free implementation" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (24 commits) s390/locking: Reenable optimistic spinning s390/mm: implement dirty bits for large segment table entries KVM: s390/mm: Fix page table locking vs. split pmd lock s390/dasd: fix camel case s390/3215: fix hanging console issue s390/irq: improve displayed interrupt order in /proc/interrupts s390/seccomp: fix error return for filtered system calls s390/pci: introduce lazy IOTLB flushing for DMA unmap dasd: fix error recovery for alias devices during format dasd: fix list_del corruption during format dasd: fix unresponsive device during format dasd: use aliases for formatted devices during format s390/pci: fix kmsg component s390/kdump: Return NOTIFY_OK for all actions other than MEM_GOING_OFFLINE s390/watchdog: Fix module name in Kconfig help text s390/dasd: replace seq_printf by seq_puts s390/dasd: replace pr_warning by pr_warn s390/dasd: Move EXPORT_SYMBOL after function/variable s390/dasd: remove unnecessary null test before debugfs_remove s390/zfcp: use qdio buffer helpers ...
2014-07-22s390/qeth: extract qdio buffers from output buffer structSebastian Ott1-2/+2
Because of the embedded qdio_buffer array struct qeth_qdio_out_q is quite large resulting in an order 4 allocation. This is likely to fail at runtime and wastes a lot of memory since the actual size is just about 34K. Since there is no need for this buffer to be contiguous split it up using qdio buffer helpers. Reported-by: Neale Ferguson <neale@sinenomine.net> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-22s390/qeth: extract qdio buffers from input buffer structSebastian Ott1-2/+2
Because of the embedded qdio_buffer array struct qeth_qdio_q is quite large resulting in an order 4 allocation. This is likely to fail at runtime and wastes a lot of memory since the actual size is just about 36K. Since there is no need for this buffer to be contiguous split it up using qdio buffer helpers. Reported-by: Neale Ferguson <neale@sinenomine.net> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-21qeth: Display adjacent switch attributesStefan Raspl1-0/+7
Add support to display the adjacent switch port's forwarding attributes. Currently supports info on forwarding modes '802.1' and 'rr' (reflective relay). Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-28qeth: Add new priority queueing optionsStefan Raspl1-0/+2
The existing options for priority queueing within OSA devices were based on the now partially defunct TOS field. This patch adds two new options as follows: - prio_queueing_skb: bases priority queueing on skb-priority - prio_queueing_vlan: uses the priority code point in the 802.1Q header Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-28qeth: Extend priority queueing to IPv6Stefan Raspl1-4/+0
Make the current priority queueing logic apply to IPv6 traffic. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-20qeth: Fix IP version detection for VLAN trafficStefan Raspl1-2/+5
The current code would always return 0 for VLAN-encapsulated IP traffic. One notable side effect was that VLAN traffic would never get prioritized on OSD and OSX devices when priority queueing modes prio_queueing_tos or prio_queueing_prec were enabled. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-29qeth: fix build of s390 allmodconfigEugene Crosser1-3/+2
commit 949efd1c "qeth: bridgeport support - basic control" broke s390 allmodconfig. This patch fixes this by eliminating one of the cross-module calls, and by making two other calls via function pointers in the qeth_discipline structure. Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15qeth: bridgeport support - address notificationsEugene Crosser1-0/+5
Introduce functions to enable and disable bridgeport address notification feature, sysfs attributes for access to these functions from userspace, and udev events emitted when a host joins or exits a bridgeport-enabled HiperSocket channel. Signed-off-by: Eugene Crosser <eugene.crosser@ru.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15qeth: bridgeport support - basic controlEugene Crosser1-0/+25
Introduce functions to assign roles and check state of bridgeport-capable HiperSocket devices, and sysfs attributes providing access to these functions from userspace. Introduce udev events emitted when the state of a bridgeport device changes. Signed-off-by: Eugene Crosser <eugene.crosser@ru.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17qeth: Accurate ethtool outputEugene Crosser1-0/+8
For OSA devices that support the QUERY_CARD_INFO command, supply accurate data based on the card type, port mode and link speed via the 'ethtool' interface. Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-25qeth: use default napi weightSebastian Ott1-1/+1
Since commit 82dc3c63c692b1e1d59378ecee948ac88e034aad "net: introduce NAPI_POLL_WEIGHT" network drivers receive a warning when they use napi weight higher than NAPI_POLL_WEIGHT. This patch reduces QETH_NAPI_WEIGHT from 128 to 64 (NAPI_POLL_WEIGHT). Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+3
Conflicts: drivers/net/ethernet/emulex/benet/be_main.c drivers/net/ethernet/intel/igb/igb_main.c drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c include/net/scm.h net/batman-adv/routing.c net/ipv4/tcp_input.c The e{uid,gid} --> {uid,gid} credentials fix conflicted with the cleanup in net-next to now pass cred structs around. The be2net driver had a bug fix in 'net' that overlapped with the VLAN interface changes by Patrick McHardy in net-next. An IGB conflict existed because in 'net' the build_skb() support was reverted, and in 'net-next' there was a comment style fix within that code. Several batman-adv conflicts were resolved by making sure that all calls to batadv_is_my_mac() are changed to have a new bat_priv first argument. Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO rewrite in 'net-next', mostly overlapping changes. Thanks to Stephen Rothwell and Antonio Quartulli for help with several of these merge resolutions. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-22qeth: Fix missing pointer updateStefan Raspl1-1/+1
qeth_hdr_chk_and_bounce() can possibly shift the skb->data pointer. However, the existing code didn't update the hdr pointer, which should point to skb->data, accordingly. Symptoms of this issue are sporadic recoveries. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-22qeth: remove unused variableStefan Raspl1-1/+1
remove unused variable Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08qeth: fix qeth_wait_for_threads() deadlock for OSN devicesStefan Raspl1-0/+3
Any recovery thread will deadlock when calling qeth_wait_for_threads(), most notably when triggering a recovery on an OSN device. This patch will store the recovery thread's task pointer on recovery invocation and check in qeth_wait_for_threads() respectively to avoid deadlocks. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19qeth: Fix scatter-gather regressionFrank Blaschka1-0/+1
This patch fixes a scatter-gather regression introduced with commit 5640f768 net: use a per task frag allocator Now the qeth driver can cope with bigger framents and split a fragment in sub framents if required. Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-21Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 update from Martin Schwidefsky: "The most prominent change in this patch set is the software dirty bit patch for s390. It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and the page_test_and_clear_dirty primitive which makes the common memory management code a bit less obscure. Heiko fixed most of the PCI related fallout, more often than not missing GENERIC_HARDIRQS dependencies. Notable is one of the 3270 patches which adds an export to tty_io to be able to resize a tty. The rest is the usual bunch of cleanups and bug fixes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits) s390/module: Add missing R_390_NONE relocation type drivers/gpio: add missing GENERIC_HARDIRQ dependency drivers/input: add couple of missing GENERIC_HARDIRQS dependencies s390/cleanup: rename SPP to LPP s390/mm: implement software dirty bits s390/mm: Fix crst upgrade of mmap with MAP_FIXED s390/linker skript: discard exit.data at runtime drivers/media: add missing GENERIC_HARDIRQS dependency s390/bpf,jit: add vlan tag support drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency iucv: fix kernel panic at reboot s390/Kconfig: sort list of arch selected config options phylib: remove !S390 dependeny from Kconfig uio: remove !S390 dependency from Kconfig dasd: fix sysfs cleanup in dasd_generic_remove s390/pci: fix hotplug module init s390/pci: cleanup clp page allocation s390/pci: cleanup clp inline assembly s390/perf: cpum_cf: fallback to software sampling events s390/mm: provide PAGE_SHARED define ...
2013-02-14s390/time: rename tod clock access functionsHeiko Carstens1-1/+1
Fix name clash with some common code device drivers and add "tod" to all tod clock access function names. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-01-21qeth: Support VEPA modeStefan Raspl1-1/+4
The existing port isolation mode 'forward' will now verify that the adjacent switch port supports the required reflective relay (RR) mode. This patch adds the required error handling for the cases where enabling port isolation mode 'forward' can now fail. Furthermore, once established, we never fall back from one of the port isolation modes to a non-isolated mode without further user-interaction. This includes cases where the isolation mode was enabled successfully, but ceases to work e.g. due to configuration changes at the switch port. Finally, configuring an isolation mode with the device being offline will make onlining the device fail permanently upon errors encountered until either errors are resolved or the isolation mode is changed by the user to a different mode. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-21qeth: Remove unused exportsStefan Raspl1-3/+0
Remove exports that are not used anywhere else. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-19qeth: Consolidate tracing of card featuresStefan Raspl1-0/+1
Trace all supported and enabled card features to s390dbf. Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-20s390/comments: unify copyright messages and remove file namesHeiko Carstens1-2/+0
Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds1-8/+16
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "Just a random collection of bug-fixes and cleanups, nothing new in this merge request." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits) s390/ap: Fix wrong or missing comments s390/ap: move receive callback to message struct s390/dasd: re-prioritize partition detection message s390/qeth: reshuffle initialization s390/qeth: cleanup drv attr usage s390/claw: cleanup drv attr usage s390/lcs: cleanup drv attr usage s390/ctc: cleanup drv attr usage s390/ccwgroup: remove ccwgroup_create_from_string s390/qeth: stop using struct ccwgroup driver for discipline callbacks s390/qeth: switch to ccwgroup_create_dev s390/claw: switch to ccwgroup_create_dev s390/lcs: switch to ccwgroup_create_dev s390/ctcm: switch to ccwgroup_create_dev s390/ccwgroup: exploit ccwdev_by_dev_id s390/ccwgroup: introduce ccwgroup_create_dev s390: fix race on TIF_MCCK_PENDING s390/barrier: make use of fast-bcr facility s390/barrier: cleanup barrier functions s390/claw: remove "eieio" calls ...
2012-05-16qeth: remove token ring part 2Frank Blaschka1-2/+0
Commit 1abd2296b4a1ee7b6a883541c3ede52042a09521 starts removing token ring from qeth_l3. This patch removes the rest of token ring related code from the driver. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-16s390/qeth: stop using struct ccwgroup driver for discipline callbacksSebastian Ott1-4/+13
The interface between qeth and its disciplines should not depend on struct ccwgroup_driver, as a qeth discipline is not a ccwgroup driver on its own. Instead provide the particular callbacks in struct qeth_discipline. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-16s390/qeth: switch to ccwgroup_create_devSebastian Ott1-4/+3
Switch to the new ccwgroup_create_dev interface. Also wrap device attributes in a struct device_type and let the driver core create these attributes automagically. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-15s390: delete any traces of token ring supportPaul Gortmaker1-2/+0
The token ring support is going away from the core kernel. Divorce the S390 drivers from it in advance. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-02-08qeth: add query OSA address table supportFrank Blaschka1-0/+1
Add qeth device private ioctl to query the OSA address table. This helps debugging hw related problems. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16qeth: Reduce CPU consumption through less SIGA-r callsEinar Lueck1-2/+1
Patch avoids SIGA-r calls in case of SIGA-r required. It only calls SIGA-r if a threshold of free buffer is reached. CPU consumption is reduced as a consequence. 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>
2011-08-13qeth: add support for af_iucv HiperSockets transportFrank Blaschka1-1/+18
This patch extends the HiperSockets device driver to send and receive af_iucv traffic over HiperSockets transport. TX: Driver uses new asynchronous delivery of storage blocks to pass flow control/congestion information from the HiperSockets microcode to the af_iucv socket. RX: Memory for incoming traffic is preallocated and passed to HiperSockets layer. If receiver is not capable to clean its buffers shared with HiperSockets and pass new memory to the HiperSockets layer this will cause flow control/congestion events on the sender. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Einar Lueck <elelueck@de.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13qeth: exploit asynchronous delivery of storage blocksEinar Lueck1-2/+26
This patch exploits the QDIO support for asynchronous delivery of storage blocks for Hipersockets. The exploitation is not configured per default and may be enabled via the function qeth_configure_cq. 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>
2011-08-13qeth: support forced signal adapter indicationsEinar Lueck1-1/+2
This patch ensures that signal adapter commands are issued if they are indicated to be required. 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>
2011-07-21qeth: do vlan cleanupJiri Pirko1-1/+1
- unify vlan and nonvlan rx path - kill card->vlangrp and qeth_l3_vlan_rx_register Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-06[S390] qdio: Split SBAL entry flagsJan Glauber1-1/+1
The qdio SBAL entry flag is made-up of four different values that are independent of one another. Some of the bits are reserved by the hardware and should not be changed by qdio. Currently all four values are overwritten since the SBAL entry flag is defined as an u32. Split the SBAL entry flag into four u8's as defined by the hardware and don't touch the reserved bits. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-05-13qeth: add OSA concurrent hardware trapFrank Blaschka1-0/+18
This patch improves FFDC (first failure data capture) by requesting a hardware trace in case the device driver, the hardware or a user detects an error. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-21 03:17:57 +0000