[Kernel-packages] [Bug 1921104] Comment bridged from LTC Bugzilla
--- Comment From heinz-werner_se...@de.ibm.com 2021-05-19 02:18 EDT--- IBM Bugzilla status->closed, Fix Released with all requested distros. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1921104 Title: net/mlx5e: Add missing capability check for uplink follow Status in Ubuntu on IBM z Systems: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Focal: Fix Released Status in linux source package in Groovy: Fix Released Status in linux source package in Hirsute: Fix Released Bug description: SRU Justification: == [Impact] * Since older firmware may not support the uplink state setting, this can lead to problems. * Now expose firmware indication that it supports setting eswitch uplink state to follow the physical link. * If a kernel without the backport is used on an adapter which does not have the latest adapter firmware, the adapter silently drops outgoing traffic. * This is a regression which was introduced with kernel 5.4.0-48. [Fix] * upstream fix (as in 5.11): 9c9be85f6b59d80efe4705109c0396df18d4e11d 9c9be85f6b59 "net/mlx5e: Add missing capability check for uplink follow" * backport for focal: https://launchpadlibrarian.net/529543695/0001 -Backport-net-mlx5e-Add-missing-capability-check-for-.patch * backport for groovy: https://launchpadlibrarian.net/529775887/0001 -Backport-groovy-net-mlx5e-Add-missing-capability-che.patch [Test Case] * Two IBM Z or LinuxONE systems, installed with Ubuntu Server 20.04 or 20.10 on LPAR, are needed. * Each with RoCE Express 2.x adapters (Mellanox ConnectX4/5) attached and firmware 16.29.1006 or earlier. * Assign an IP address to the adapters on both systems and try to ping one node from the other. * The ping will just fail with the stock Ubuntu kernels (not having the patch), but will succeed with kernels that incl. the patches (like the test builds from the PPA mentioned below). * Due to the lack of hardware this needs to be verified by IBM. [Regression Potential] * Undesired / erroneous behavior in case the modified if condition is assembled in a wrong way. * Again wrong behavior in case the modification of the capability bits in mlx5_ifc_cmd_hca_cap_bits are wrong. * All modification are limited to the mlx5 driver only. * The changes are relatively limited with effectively two lines removed and 4 added (three of them adjustments of the capability bits only). * The modifications were done and tested by IBM and reviewed by Mellanox (see LP comments), based on a PPA test build. [Other] * The above patch/commit was upstream accepted with kernel 5.11. * Hence the patch is not needed for hirsute, just needs to be SRUed for groovy and focal. * The commit couldn't be cleanly cherry-picked, mainly due to changed context, hence the backport(s). __ Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Available fix with kernel 5.11. https://github.com/torvalds/linux/commit/9c9be85f6b59d80efe4705109c0396df18d4e11d Now required for Ubuntu 20.04 via backport patch. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1921104/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1921104] Comment bridged from LTC Bugzilla
--- Comment From alexs...@de.ibm.com 2021-04-21 08:50 EDT--- I verified the fix successfully on 5.4.0-73. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1921104 Title: net/mlx5e: Add missing capability check for uplink follow Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Released Status in linux source package in Focal: Fix Committed Status in linux source package in Groovy: Fix Committed Status in linux source package in Hirsute: Fix Released Bug description: SRU Justification: == [Impact] * Since older firmware may not support the uplink state setting, this can lead to problems. * Now expose firmware indication that it supports setting eswitch uplink state to follow the physical link. * If a kernel without the backport is used on an adapter which does not have the latest adapter firmware, the adapter silently drops outgoing traffic. * This is a regression which was introduced with kernel 5.4.0-48. [Fix] * upstream fix (as in 5.11): 9c9be85f6b59d80efe4705109c0396df18d4e11d 9c9be85f6b59 "net/mlx5e: Add missing capability check for uplink follow" * backport for focal: https://launchpadlibrarian.net/529543695/0001 -Backport-net-mlx5e-Add-missing-capability-check-for-.patch * backport for groovy: https://launchpadlibrarian.net/529775887/0001 -Backport-groovy-net-mlx5e-Add-missing-capability-che.patch [Test Case] * Two IBM Z or LinuxONE systems, installed with Ubuntu Server 20.04 or 20.10 on LPAR, are needed. * Each with RoCE Express 2.x adapters (Mellanox ConnectX4/5) attached and firmware 16.29.1006 or earlier. * Assign an IP address to the adapters on both systems and try to ping one node from the other. * The ping will just fail with the stock Ubuntu kernels (not having the patch), but will succeed with kernels that incl. the patches (like the test builds from the PPA mentioned below). * Due to the lack of hardware this needs to be verified by IBM. [Regression Potential] * Undesired / erroneous behavior in case the modified if condition is assembled in a wrong way. * Again wrong behavior in case the modification of the capability bits in mlx5_ifc_cmd_hca_cap_bits are wrong. * All modification are limited to the mlx5 driver only. * The changes are relatively limited with effectively two lines removed and 4 added (three of them adjustments of the capability bits only). * The modifications were done and tested by IBM and reviewed by Mellanox (see LP comments), based on a PPA test build. [Other] * The above patch/commit was upstream accepted with kernel 5.11. * Hence the patch is not needed for hirsute, just needs to be SRUed for groovy and focal. * The commit couldn't be cleanly cherry-picked, mainly due to changed context, hence the backport(s). __ Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Available fix with kernel 5.11. https://github.com/torvalds/linux/commit/9c9be85f6b59d80efe4705109c0396df18d4e11d Now required for Ubuntu 20.04 via backport patch. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1921104/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1921104] Comment bridged from LTC Bugzilla
--- Comment From alexs...@de.ibm.com 2021-03-26 06:23 EDT--- Additions for the Impact statement: [Impact] * Since older firmware may not support the uplink state setting, this can lead to problems. * Now expose firmware indication that it supports setting eswitch uplink state to follow the physical link. * If a kernel without the backport is used on an adapter which does not have the latest adapter firmware, the adapter silently drops outgoing traffic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1921104 Title: net/mlx5e: Add missing capability check for uplink follow for Ubuntu 20.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Fix Released Status in linux source package in Focal: Triaged Status in linux source package in Groovy: Triaged Status in linux source package in Hirsute: Fix Released Bug description: Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Available fix with kernel 5.11. https://github.com/torvalds/linux/commit/9c9be85f6b59d80efe4705109c0396df18d4e11d Now required for Ubuntu 20.04 via backport patch. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1921104/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1921104] Comment bridged from LTC Bugzilla
--- Comment From heinz-werner_se...@de.ibm.com 2021-03-26 05:16 EDT--- SRU Justification: [Impact] * Since older firmware may not support the uplink state setting, this can lead to problems. * Now expose firmware indication that it supports setting eswitch uplink state to follow the physical link. * <... some more details are needed on how things fail today, w/o the patch> [Fix] * upstream fix (as in 5.11): 9c9be85f6b59d80efe4705109c0396df18d4e11d 9c9be85f6b59 "net/mlx5e: Add missing capability check for uplink follow" https://launchpadlibrarian.net/529543695/0001-Backport-net-mlx5e-Add- missing-capability-check-for-.patch * backport for groovy: https://launchpadlibrarian.net/529775887/0001-Backport-groovy-net-mlx5e-Add-missing-capability-che.patch [Test Case] * It requires an IBM Z or LinuxONE system, with groovy/focal installed in LPAR and RoCE Express 2.x adapters attached. * Due to the lack of hardware this needs to be verifid by IBM. [Regression Potential] * This backport fixes a regression which was introduced with the kernel 5.4.0-48 update for Ubuntu 20.04. [Other] * The above patch/commit was upstream accepted with kernel 5.11. * Hence the patch is not needed for hirsute, just SRUs for groovy and focal are needed. * But the commit couldn't be cleanly cherry-picked, due to changed context, hence the backport(s). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1921104 Title: net/mlx5e: Add missing capability check for uplink follow for Ubuntu 20.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Fix Released Status in linux source package in Focal: Triaged Status in linux source package in Groovy: Triaged Status in linux source package in Hirsute: Fix Released Bug description: Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Available fix with kernel 5.11. https://github.com/torvalds/linux/commit/9c9be85f6b59d80efe4705109c0396df18d4e11d Now required for Ubuntu 20.04 via backport patch. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1921104/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1921104] Comment bridged from LTC Bugzilla
--- Comment From alexs...@de.ibm.com 2021-03-25 04:24 EDT--- I tested Frank's build successfully. Using adapter firmware 16.27.2008. BAD TEST = root@pok1-qz1-sr1-rk011-s01:~# uname -a Linux pok1-qz1-sr1-rk011-s01 5.4.0-67-generic #75-Ubuntu SMP Fri Feb 19 18:00:48 UTC 2021 s390x s390x s390x GNU/Linux root@pok1-qz1-sr1-rk011-s01:~# ifconfig p0 172.31.22.3/31 mtu 9100 up root@pok1-qz1-sr1-rk011-s01:~# ping 172.31.22.2 PING 172.31.22.2 (172.31.22.2) 56(84) bytes of data. ^C --- 172.31.22.2 ping statistics --- 13 packets transmitted, 0 received, 100% packet loss, time 12445ms GOOD TEST = root@pok1-qz1-sr1-rk011-s01:~# uname -a Linux pok1-qz1-sr1-rk011-s01 5.4.0-68-generic #76~lp1921104-Ubuntu SMP Wed Mar 24 11:39:26 UTC 2021 s390x s390x s390x GNU/Linux root@pok1-qz1-sr1-rk011-s01:~# ifconfig p0 172.31.22.3/31 mtu 9100 up root@pok1-qz1-sr1-rk011-s01:~# ping 172.31.22.2 PING 172.31.22.2 (172.31.22.2) 56(84) bytes of data. 64 bytes from 172.31.22.2: icmp_seq=1 ttl=0 time=122 ms 64 bytes from 172.31.22.2: icmp_seq=2 ttl=0 time=0.089 ms 64 bytes from 172.31.22.2: icmp_seq=3 ttl=0 time=0.075 ms --- Comment From alexs...@de.ibm.com 2021-03-25 04:26 EDT--- We also got positive reviews from the Mellanox team: Idan Werpoler 18:47 it is ok,they told me Idan Werpoler 19:02 @Aya Levin reviewed the fix also and it?s looks fine. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1921104 Title: net/mlx5e: Add missing capability check for uplink follow for Ubuntu 20.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Fix Released Status in linux source package in Focal: Triaged Status in linux source package in Groovy: New Status in linux source package in Hirsute: Fix Released Bug description: Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Available fix with kernel 5.11. https://github.com/torvalds/linux/commit/9c9be85f6b59d80efe4705109c0396df18d4e11d Now required for Ubuntu 20.04 via backport patch. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1921104/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1921104] Comment bridged from LTC Bugzilla
--- Comment From heinz-werner_se...@de.ibm.com 2021-03-24 07:23 EDT--- Expose firmware indication that it supports setting eswitch uplink state to follow (follow the physical link). Condition setting the eswitch uplink admin-state with this capability bit. Older FW may not support the uplink state setting. Available fix with kernel 5.11. https://github.com/torvalds/linux/commit/9c9be85f6b59d80efe4705109c0396df18d4e11d Now required for Ubuntu 20.04 via backport patch. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1921104 Title: net/mlx5e: Add missing capability check for uplink follow for Ubuntu 20.04 Status in linux package in Ubuntu: New Bug description: x To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1921104/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
