** Tags removed: verification-needed-jammy ** Tags added: verification-done-jammy
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-bluefield in Ubuntu. https://bugs.launchpad.net/bugs/1995296 Title: mlx-bootctl: support icm carveout eeprom region read/write Status in linux-bluefield package in Ubuntu: Invalid Status in linux-bluefield source package in Jammy: Fix Committed Bug description: SRU Justification: [Impact] The BlueField-3 ICM carveout feature will enable NIC FW to bypass the SMMU block to access DRAM memory. The amount of memory accessible by FW will be controlled by ARM. This patch enables setting the size of the large ICM carveout from userspace. The max size is 1TB, has a granularity of 128MB and will be passed and printed in hex. The size unit is MB. [Fix] * Support SMC calls to control the large ICM carveout size. [Test Case] * Only valid testing on BlueField-3 real hardware. * set the region size from sysfs and NIC FW will test that it has access to the entire region requested. [Regression Potential] * This code doesn't really have a negative impact on the functionality of the mlxbf-bootctl driver itself but could be a risk for the overall boot if not used/tested properly. * memory region requested is too large, adn linux cannot boot as a result. The memory allocated for the ICM carveout cannot be accessed by linux. * the icmc size is not passed properly to NIC FW To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/1995296/+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
