Revision tags: v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43 |
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#
1cfef80d |
| 01-Aug-2023 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: Don't call dev_close/dev_open (DOWN/UP)
dev_close() and dev_open() are issued to change the interface state to DOWN or UP (dev->flags IFF_UP). When the netdev is set DOWN it loses e.g its
s390/qeth: Don't call dev_close/dev_open (DOWN/UP)
dev_close() and dev_open() are issued to change the interface state to DOWN or UP (dev->flags IFF_UP). When the netdev is set DOWN it loses e.g its Ipv6 addresses and routes. We don't want this in cases of device recovery (triggered by hardware or software) or when the qeth device is set offline.
Setting a qeth device offline or online and device recovery actions call netif_device_detach() and/or netif_device_attach(). That will reset or set the LOWER_UP indication i.e. change the dev->state Bit __LINK_STATE_PRESENT. That is enough to e.g. cause bond failovers, and still preserves the interface settings that are handled by the network stack.
Don't call dev_open() nor dev_close() from the qeth device driver. Let the network stack handle this.
Fixes: d4560150cb47 ("s390/qeth: call dev_close() during recovery") Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Revision tags: v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13, v6.2, v6.1.12 |
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74c05a38 |
| 09-Feb-2023 |
Thorsten Winkler <twinkler@linux.ibm.com> |
s390/qeth: Convert sprintf/snprintf to scnprintf
This LWN article explains the rationale for this change https: //lwn.net/Articles/69419/ Ie. snprintf() returns what *would* be the resulting length,
s390/qeth: Convert sprintf/snprintf to scnprintf
This LWN article explains the rationale for this change https: //lwn.net/Articles/69419/ Ie. snprintf() returns what *would* be the resulting length, while scnprintf() returns the actual length.
Reported-by: Jules Irenge <jbi.octave@gmail.com> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Thorsten Winkler <twinkler@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4, v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12 |
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ebaaadc3 |
| 07-Dec-2022 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: fix use-after-free in hsci
KASAN found that addr was dereferenced after br2dev_event_work was freed.
================================================================== BUG: KASAN: use-af
s390/qeth: fix use-after-free in hsci
KASAN found that addr was dereferenced after br2dev_event_work was freed.
================================================================== BUG: KASAN: use-after-free in qeth_l2_br2dev_worker+0x5ba/0x6b0 Read of size 1 at addr 00000000fdcea440 by task kworker/u760:4/540 CPU: 17 PID: 540 Comm: kworker/u760:4 Tainted: G E 6.1.0-20221128.rc7.git1.5aa3bed4ce83.300.fc36.s390x+kasan #1 Hardware name: IBM 8561 T01 703 (LPAR) Workqueue: 0.0.8000_event qeth_l2_br2dev_worker Call Trace: [<000000016944d4ce>] dump_stack_lvl+0xc6/0xf8 [<000000016942cd9c>] print_address_description.constprop.0+0x34/0x2a0 [<000000016942d118>] print_report+0x110/0x1f8 [<0000000167a7bd04>] kasan_report+0xfc/0x128 [<000000016938d79a>] qeth_l2_br2dev_worker+0x5ba/0x6b0 [<00000001673edd1e>] process_one_work+0x76e/0x1128 [<00000001673ee85c>] worker_thread+0x184/0x1098 [<000000016740718a>] kthread+0x26a/0x310 [<00000001672c606a>] __ret_from_fork+0x8a/0xe8 [<00000001694711da>] ret_from_fork+0xa/0x40 Allocated by task 108338: kasan_save_stack+0x40/0x68 kasan_set_track+0x36/0x48 __kasan_kmalloc+0xa0/0xc0 qeth_l2_switchdev_event+0x25a/0x738 atomic_notifier_call_chain+0x9c/0xf8 br_switchdev_fdb_notify+0xf4/0x110 fdb_notify+0x122/0x180 fdb_add_entry.constprop.0.isra.0+0x312/0x558 br_fdb_add+0x59e/0x858 rtnl_fdb_add+0x58a/0x928 rtnetlink_rcv_msg+0x5f8/0x8d8 netlink_rcv_skb+0x1f2/0x408 netlink_unicast+0x570/0x790 netlink_sendmsg+0x752/0xbe0 sock_sendmsg+0xca/0x110 ____sys_sendmsg+0x510/0x6a8 ___sys_sendmsg+0x12a/0x180 __sys_sendmsg+0xe6/0x168 __do_sys_socketcall+0x3c8/0x468 do_syscall+0x22c/0x328 __do_syscall+0x94/0xf0 system_call+0x82/0xb0 Freed by task 540: kasan_save_stack+0x40/0x68 kasan_set_track+0x36/0x48 kasan_save_free_info+0x4c/0x68 ____kasan_slab_free+0x14e/0x1a8 __kasan_slab_free+0x24/0x30 __kmem_cache_free+0x168/0x338 qeth_l2_br2dev_worker+0x154/0x6b0 process_one_work+0x76e/0x1128 worker_thread+0x184/0x1098 kthread+0x26a/0x310 __ret_from_fork+0x8a/0xe8 ret_from_fork+0xa/0x40 Last potentially related work creation: kasan_save_stack+0x40/0x68 __kasan_record_aux_stack+0xbe/0xd0 insert_work+0x56/0x2e8 __queue_work+0x4ce/0xd10 queue_work_on+0xf4/0x100 qeth_l2_switchdev_event+0x520/0x738 atomic_notifier_call_chain+0x9c/0xf8 br_switchdev_fdb_notify+0xf4/0x110 fdb_notify+0x122/0x180 fdb_add_entry.constprop.0.isra.0+0x312/0x558 br_fdb_add+0x59e/0x858 rtnl_fdb_add+0x58a/0x928 rtnetlink_rcv_msg+0x5f8/0x8d8 netlink_rcv_skb+0x1f2/0x408 netlink_unicast+0x570/0x790 netlink_sendmsg+0x752/0xbe0 sock_sendmsg+0xca/0x110 ____sys_sendmsg+0x510/0x6a8 ___sys_sendmsg+0x12a/0x180 __sys_sendmsg+0xe6/0x168 __do_sys_socketcall+0x3c8/0x468 do_syscall+0x22c/0x328 __do_syscall+0x94/0xf0 system_call+0x82/0xb0 Second to last potentially related work creation: kasan_save_stack+0x40/0x68 __kasan_record_aux_stack+0xbe/0xd0 kvfree_call_rcu+0xb2/0x760 kernfs_unlink_open_file+0x348/0x430 kernfs_fop_release+0xc2/0x320 __fput+0x1ae/0x768 task_work_run+0x1bc/0x298 exit_to_user_mode_prepare+0x1a0/0x1a8 __do_syscall+0x94/0xf0 system_call+0x82/0xb0 The buggy address belongs to the object at 00000000fdcea400 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 64 bytes inside of 96-byte region [00000000fdcea400, 00000000fdcea460) The buggy address belongs to the physical page: page:000000005a9c26e8 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xfdcea flags: 0x3ffff00000000200(slab|node=0|zone=1|lastcpupid=0x1ffff) raw: 3ffff00000000200 0000000000000000 0000000100000122 000000008008cc00 raw: 0000000000000000 0020004100000000 ffffffff00000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: 00000000fdcea300: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc 00000000fdcea380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >00000000fdcea400: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ 00000000fdcea480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc 00000000fdcea500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ==================================================================
Fixes: f7936b7b2663 ("s390/qeth: Update MACs of LEARNING_SYNC device") Reported-by: Thorsten Winkler <twinkler@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com> Link: https://lore.kernel.org/r/20221207105304.20494-1-wintera@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78, v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3, v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71 |
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b48b89f9 |
| 27-Sep-2022 |
Jakub Kicinski <kuba@kernel.org> |
net: drop the weight argument from netif_napi_add
We tell driver developers to always pass NAPI_POLL_WEIGHT as the weight to netif_napi_add(). This may be confusing to newcomers, drop the weight arg
net: drop the weight argument from netif_napi_add
We tell driver developers to always pass NAPI_POLL_WEIGHT as the weight to netif_napi_add(). This may be confusing to newcomers, drop the weight argument, those who really need to tweak the weight can use netif_napi_add_weight().
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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8f1e1658 |
| 26-Sep-2022 |
Kees Cook <keescook@chromium.org> |
s390/qeth: Split memcpy() of struct qeth_ipacmd_addr_change flexible array
To work around a misbehavior of the compiler's ability to see into composite flexible array structs (as detailed in the com
s390/qeth: Split memcpy() of struct qeth_ipacmd_addr_change flexible array
To work around a misbehavior of the compiler's ability to see into composite flexible array structs (as detailed in the coming memcpy() hardening series[1]), split the memcpy() of the header and the payload so no false positive run-time overflow warning will be generated.
[1] https://lore.kernel.org/linux-hardening/20220901065914.1417829-2-keescook@chromium.org/
Cc: Wenjia Zhang <wenjia@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Link: https://lore.kernel.org/r/20220927003953.1942442-1-keescook@chromium.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65, v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51, v5.15.50, v5.15.49, v5.15.48, v5.15.47, v5.15.46, v5.15.45, v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38 |
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ee8b7a11 |
| 05-May-2022 |
Jakub Kicinski <kuba@kernel.org> |
net: make drivers set the TSO limit not the GSO limit
Drivers should call the TSO setting helper, GSO is controllable by user space.
Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: D
net: make drivers set the TSO limit not the GSO limit
Drivers should call the TSO setting helper, GSO is controllable by user space.
Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Revision tags: v5.15.37 |
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4bb0c7f0 |
| 28-Apr-2022 |
Jakub Kicinski <kuba@kernel.org> |
qeth: remove a copy of the NAPI_POLL_WEIGHT define
Defining local versions of NAPI_POLL_WEIGHT with the same values in the drivers just makes refactoring harder.
Signed-off-by: Jakub Kicinski <kuba
qeth: remove a copy of the NAPI_POLL_WEIGHT define
Defining local versions of NAPI_POLL_WEIGHT with the same values in the drivers just makes refactoring harder.
Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Revision tags: v5.15.36, v5.15.35, v5.15.34, v5.15.33, v5.15.32, v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26, v5.15.25, v5.15.24, v5.15.23, v5.15.22, v5.15.21, v5.15.20, v5.15.19, v5.15.18, v5.15.17, v5.4.173, v5.15.16, v5.15.15, v5.16, v5.15.10, v5.15.9, v5.15.8, v5.15.7 |
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1b9e410f |
| 07-Dec-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: fine-tune .ndo_select_queue()
Avoid a conditional branch for L2 devices when selecting the TX queue, and have shared logic for OSA devices.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.
s390/qeth: fine-tune .ndo_select_queue()
Avoid a conditional branch for L2 devices when selecting the TX queue, and have shared logic for OSA devices.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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cdf8df5b |
| 07-Dec-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: don't offer .ndo_bridge_* ops for OSA devices
qeth_l2_detect_dev2br_support() will only set brport_hw_features for IQD devices. So qeth_l2_bridge_getlink() and qeth_l2_bridge_setlink() wi
s390/qeth: don't offer .ndo_bridge_* ops for OSA devices
qeth_l2_detect_dev2br_support() will only set brport_hw_features for IQD devices. So qeth_l2_bridge_getlink() and qeth_l2_bridge_setlink() will always return -EOPNOTSUPP on OSA devices. Just don't offer these callbacks instead.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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2dbc7a1d |
| 07-Dec-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: split up L2 netdev_ops
Splitting up the netdev_ops allows for fine-tuning some of the ndo's in subsequent patches.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Wenjia
s390/qeth: split up L2 netdev_ops
Splitting up the netdev_ops allows for fine-tuning some of the ndo's in subsequent patches.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15 |
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22e2b5cd |
| 25-Oct-2021 |
Heiko Carstens <hca@linux.ibm.com> |
s390/qeth: fix various format strings
Various format strings don't match with types of parameters. Fix all of them.
Acked-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@
s390/qeth: fix various format strings
Various format strings don't match with types of parameters. Fix all of them.
Acked-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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2decb0b7 |
| 25-Oct-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: remove .do_ioctl() callback from driver discipline
With commit 18787eeebd71 ("qeth: use ndo_siocdevprivate") this callback is now actually used to handle transport mode-specific _private_
s390/qeth: remove .do_ioctl() callback from driver discipline
With commit 18787eeebd71 ("qeth: use ndo_siocdevprivate") this callback is now actually used to handle transport mode-specific _private_ ioctls.
We only have such ioctls for L3 devices. So wire up a L3-specific .ndo_siocdevprivate() callback that handles those ioctls, and defers to the core qeth_siocdevprivate() for all other private ioctls.
This takes the discipline one step closer to its original purpose of providing an internal extension for the qeth_core_ccwgroup_driver.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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0969becb |
| 25-Oct-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: improve trace entries for MAC address (un)registration
Add the failed MAC address into the trace message. Also fix up one format string to use %x instead of %u for the CARD_DEVID.
Signed
s390/qeth: improve trace entries for MAC address (un)registration
Add the failed MAC address into the trace message. Also fix up one format string to use %x instead of %u for the CARD_DEVID.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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978bb0ae |
| 21-Oct-2021 |
Jakub Kicinski <kuba@kernel.org> |
net: s390: constify and use eth_hw_addr_set()
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain net
net: s390: constify and use eth_hw_addr_set()
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers.
Make sure local references to netdev->dev_addr are constant.
Acked-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10, v5.14.9, v5.14.8, v5.14.7 |
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ee909d0b |
| 21-Sep-2021 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: Fix deadlock in remove_discipline
Problem: qeth_close_dev_handler is a worker that tries to acquire card->discipline_mutex via drv->set_offline() in ccwgroup_set_offline(). Since commit b
s390/qeth: Fix deadlock in remove_discipline
Problem: qeth_close_dev_handler is a worker that tries to acquire card->discipline_mutex via drv->set_offline() in ccwgroup_set_offline(). Since commit b41b554c1ee7 ("s390/qeth: fix locking for discipline setup / removal") qeth_remove_discipline() is called under card->discipline_mutex and cancels the work and waits for it to finish.
STOPLAN reception with reason code IPA_RC_VEPA_TO_VEB_TRANSITION is the only situation that schedules close_dev_work. In that situation scheduling qeth recovery will also result in an offline interface, when resetting the isolation mode fails, if the external switch is still set to VEB. And since commit 0b9902c1fcc5 ("s390/qeth: fix deadlock during recovery") qeth recovery does not aquire card->discipline_mutex anymore.
So we accept the longer pathlength of qeth_schedule_recovery in this error situation and re-use the existing function.
As a side-benefit this changes the hwtrap to behave like during recovery instead of like during a user-triggered set_offline.
Fixes: b41b554c1ee7 ("s390/qeth: fix locking for discipline setup / removal") Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Acked-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v5.14.6, v5.10.67, v5.10.66, v5.14.5, v5.14.4, v5.10.65, v5.14.3, v5.10.64, v5.14.2, v5.10.63, v5.14.1, v5.10.62, v5.14, v5.10.61, v5.10.60 |
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c35b57ce |
| 10-Aug-2021 |
Vladimir Oltean <vladimir.oltean@nxp.com> |
net: switchdev: zero-initialize struct switchdev_notifier_fdb_info emitted by drivers towards the bridge
The blamed commit added a new field to struct switchdev_notifier_fdb_info, but did not make s
net: switchdev: zero-initialize struct switchdev_notifier_fdb_info emitted by drivers towards the bridge
The blamed commit added a new field to struct switchdev_notifier_fdb_info, but did not make sure that all call paths set it to something valid. For example, a switchdev driver may emit a SWITCHDEV_FDB_ADD_TO_BRIDGE notifier, and since the 'is_local' flag is not set, it contains junk from the stack, so the bridge might interpret those notifications as being for local FDB entries when that was not intended.
To avoid that now and in the future, zero-initialize all switchdev_notifier_fdb_info structures created by drivers such that all newly added fields to not need to touch drivers again.
Fixes: 2c4eca3ef716 ("net: bridge: switchdev: include local flag in FDB notifications") Reported-by: Ido Schimmel <idosch@idosch.org> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Karsten Graul <kgraul@linux.ibm.com> Link: https://lore.kernel.org/r/20210810115024.1629983-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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f7936b7b |
| 06-Aug-2021 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: Update MACs of LEARNING_SYNC device
Update the MAC addresses that are registered with a LEARNING_SYNC qeth device with the events announced by the attached software bridge.
Typically the
s390/qeth: Update MACs of LEARNING_SYNC device
Update the MAC addresses that are registered with a LEARNING_SYNC qeth device with the events announced by the attached software bridge.
Typically the LEARNING_SYNC qeth bridge port has an isolated sibling (the default interface of an 'HiperSockets Converged Interface' (HSCI)). Update the MACs of isolated siblings as well, to avoid unnecessary flooding in the attached virtualized switches.
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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4e20e73e |
| 06-Aug-2021 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: Switchdev event handler
QETH HiperSockets devices with LEARNING_SYNC capability can be used to construct a linux bridge with: 2 isolated southbound interfaces: a) a default network i
s390/qeth: Switchdev event handler
QETH HiperSockets devices with LEARNING_SYNC capability can be used to construct a linux bridge with: 2 isolated southbound interfaces: a) a default network interface b) a LEARNING-SYNC HiperSockets interface and 1 non-isolated northbound interface. This is called a 'HiperSockets Converged Interface' (HSCI). The existing LEARNING_SYNC functionality is used to update the bridge fdb with MAC addresses that should be sent-out via the HiperSockets interface, instead of the default network interface.
Add handling of switchdev events SWITCHDEV_FDB_ADD_TO_DEVICE and SWITCHDEV_FDB_DEL_TO_DEVICE to the qeth LEARNING_SYNC functionality. Thus if the northbound bridgeport of an HSCI doesn't only have a single static MAC address, but instead is a learning bridgeport, work is enqueued, so the HiperSockets virtual switch (that is external to this Linux instance) can update its fdb.
When BRIDGE is a loadable module, QETH_L2 mustn't be built-in:
drivers/s390/net/qeth_l2_main.o: in function 'qeth_l2_switchdev_event': drivers/s390/net/qeth_l2_main.c:927: undefined reference to 'br_port_flag_is_set'
Add Kconfig dependency to enforce usable configurations.
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
60bb1089 |
| 06-Aug-2021 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: Register switchdev event handler
Conditionally register a qeth_l2 switchdev_event handler to handle bridge to device switchdev events, when at least one qeth interface has the bridgeport
s390/qeth: Register switchdev event handler
Conditionally register a qeth_l2 switchdev_event handler to handle bridge to device switchdev events, when at least one qeth interface has the bridgeport attribute LEARNING_SYNC enabled.
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
a7605370 |
| 27-Jul-2021 |
Arnd Bergmann <arnd@arndb.de> |
dev_ioctl: split out ndo_eth_ioctl
Most users of ndo_do_ioctl are ethernet drivers that implement the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware timestamping with SIOCSHWTSTAMP/SI
dev_ioctl: split out ndo_eth_ioctl
Most users of ndo_do_ioctl are ethernet drivers that implement the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP.
Separate these from the few drivers that use ndo_do_ioctl to implement SIOCBOND, SIOCBR and SIOCWANDEV commands.
This is a purely cosmetic change intended to help readers find their way through the implementation.
Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Vladimir Oltean <olteanv@gmail.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: linux-rdma@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
18787eee |
| 27-Jul-2021 |
Arnd Bergmann <arnd@arndb.de> |
qeth: use ndo_siocdevprivate
qeth has both standard MII ioctls and custom SIOCDEVPRIVATE ones, all of which work correctly with compat user space.
Move the private ones over to the new ndo_siocdevp
qeth: use ndo_siocdevprivate
qeth has both standard MII ioctls and custom SIOCDEVPRIVATE ones, all of which work correctly with compat user space.
Move the private ones over to the new ndo_siocdevprivate callback.
Cc: Julian Wiedmann <jwi@linux.ibm.com> Cc: Karsten Graul <kgraul@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: linux-s390@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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Revision tags: v5.10.53, v5.10.52 |
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ae57ea7a |
| 20-Jul-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: clean up device_type management
qeth uses three device_type structs - a generic one, and one for each sub-driver (which is used for fixed-layer devices only). Instead of exporting these d
s390/qeth: clean up device_type management
qeth uses three device_type structs - a generic one, and one for each sub-driver (which is used for fixed-layer devices only). Instead of exporting these device_types back&forth between the driver's modules, make all the logic self-contained within the sub-drivers.
On disc->setup() they either install their own device_type, or add the sysfs attributes that are missing in the generic device_type. Later on disc->remove() these attributes are removed again from any device that has the generic device_type.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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a8c7629c |
| 20-Jul-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: remove OSN support
Commit fb64de1bc36c ("s390/qeth: phase out OSN support") spelled out why the OSN support in qeth is in a bad shape, and put any remaining interested parties on notice t
s390/qeth: remove OSN support
Commit fb64de1bc36c ("s390/qeth: phase out OSN support") spelled out why the OSN support in qeth is in a bad shape, and put any remaining interested parties on notice to speak up before it gets ripped out.
It's 2021 now, so make true on that promise and remove all the OSN-specific parts from qeth. This also means that we no longer need to export various parts of the cmd & data path internals to the L2 driver.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Revision tags: v5.10.51, v5.10.50, v5.10.49, v5.13, v5.10.46 |
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953fb4dc |
| 11-Jun-2021 |
Alexandra Winter <wintera@linux.ibm.com> |
s390/qeth: Consider dependency on SWITCHDEV module
Without the SWITCHDEV module, the bridgeport attribute LEARNING_SYNC of the physical device (self) does not provide any functionality. Instead of c
s390/qeth: Consider dependency on SWITCHDEV module
Without the SWITCHDEV module, the bridgeport attribute LEARNING_SYNC of the physical device (self) does not provide any functionality. Instead of calling the no-op stub version of the switchdev functions, fail the setting of the attribute with an appropriate message.
While at it, also add an error message for the 'not supported by HW' case.
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Revision tags: v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32, v5.10.31, v5.10.30, v5.10.27, v5.10.26, v5.10.25, v5.10.24, v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101, v5.10.18, v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14 |
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#
17f3a8b5 |
| 28-Jan-2021 |
Julian Wiedmann <jwi@linux.ibm.com> |
s390/qeth: remove qeth_get_ip_version()
Replace our home-grown helper with the more robust vlan_get_protocol(). This is pretty much a 1:1 replacement, we just need to pass around a proper ETH_P_* ev
s390/qeth: remove qeth_get_ip_version()
Replace our home-grown helper with the more robust vlan_get_protocol(). This is pretty much a 1:1 replacement, we just need to pass around a proper ETH_P_* everyhwere and convert the old value range.
For readability also convert the protocol checks in qeth_l3_hard_start_xmit() to a switch statement.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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