| Message ID | 1613762559-30398-1-git-send-email-mahantesh@nvidia.com |
|---|---|
| Headers | show |
| Series | UBUNTU: SAUCE: pka: Use memory addresses defined in ACPI table | expand |
On 19.02.21 20:22, Mahantesh Salimath wrote: > Buglink: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/1916274 > > SRU Justification: > > [Impact] > * ACPI definitions are updated for PKA (public key accelerator) HW on Bluefield platforms (by Mellnox/Nvidia). > * ACPI update requires PKA driver update, else kernel traces will be seen on startup. > * PKA driver won't be loaded and PKA HW will be inaccessible. > > [Fix] > * "pka: Use memory addresses defined in ACPI table" > > [Testcase] > * On bluefield system startup check if PKA driver is loaded without any errors. Ex:#dmesg | grep -i pka > > [Regression Potential] > * For systems where the ACPI update is not applied but PKA driver update is > applied, will see kernel traces as driver will try to read definitions from > ACPI which are not present. This will lead to failure in loading of PKA driver > and PKA HW will be inaccessible. Solution to this is to update ACPI. All new > bluefield images will have updated ACPI definitions. > * Example kernel trace: [ 9.970155] Call trace: > [ 9.972625] pka_drv_probe+0x41c/0x5f0 [mlxbf_pka] > Applied to focal:linux-bluefield/master-next. Thanks. -Stefan
Buglink: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/1916274 SRU Justification: [Impact] * ACPI definitions are updated for PKA (public key accelerator) HW on Bluefield platforms (by Mellnox/Nvidia). * ACPI update requires PKA driver update, else kernel traces will be seen on startup. * PKA driver won't be loaded and PKA HW will be inaccessible. [Fix] * "pka: Use memory addresses defined in ACPI table" [Testcase] * On bluefield system startup check if PKA driver is loaded without any errors. Ex:#dmesg | grep -i pka [Regression Potential] * For systems where the ACPI update is not applied but PKA driver update is applied, will see kernel traces as driver will try to read definitions from ACPI which are not present. This will lead to failure in loading of PKA driver and PKA HW will be inaccessible. Solution to this is to update ACPI. All new bluefield images will have updated ACPI definitions. * Example kernel trace: [ 9.970155] Call trace: [ 9.972625] pka_drv_probe+0x41c/0x5f0 [mlxbf_pka]