APPLIED: [SRU][P/N/J:linux-azure][PULL] Additional MANA patch support
John Cabaj
john.cabaj at canonical.com
Fri Jul 25 21:33:53 UTC 2025
On 7/14/25 2:36 PM, John Cabaj wrote:
> BugLink: https://bugs.launchpad.net/bugs/2115309
> BugLink: https://bugs.launchpad.net/ubuntu/bugs/2115356
>
> SRU Justification
>
> [Impact]
>
> * Microsoft requested MANA patches for the following:
> * Better spread IRQs per cpu
> * Allocate MSI-X vectors in PCI dynamically
> * Represent packets transmitted after GSO processing
> * Support holes in device list reply msg
> * Support multi vports on bare-metal
> * Action on receiving the special EQE notification
>
> [Fix]
>
> * Plucky:
> * 1 clean cherry-pick from upstream
> * 290e5d3c49f6: "net: mana: Add support for Multi Vports on Bare
> metal"
> * 5 clean cherry-picks from linux-next
> * 5da8a8b8090b: "PCI/MSI: Export pci_msix_prepare_desc() for
> dynamic MSI-X allocations"
> * ad518f2557b9: "PCI: hv: Allow dynamic MSI-X vector allocation"
> * 4607617af1b4: "net: mana: explain irq_setup() algorithm"
> * 845c62c543d6: "net: mana: Allow irq_setup() to skip cpus for
> affinity"
> * 7399ef984022: "net: mana: Set tx_packets to post gso processing
> packet count"
> * 2 backports from linux-next
> * 755391121038: "net: mana: Allocate MSI-X vectors dynamically"
> * 7768c5f41733: "net: mana: Add handler for hardware servicing events"
>
> * Noble:
> * 6 clean cherry-picks from upstream
> * c1f5204efcbc: "cpumask: add cpumask_weight_andnot()"
> * dcee228078c3: "cpumask: define cleanup function for cpumasks"
> * 91bfe210e196: "net: mana: add a function to spread IRQs per CPUs"
> * 8afefc361209: "net: mana: Assigning IRQ affinity on HT cores"
> * 2fc8a346625e: "net: mana: Support holes in device list reply msg"
> * 290e5d3c49f6: "net: mana: Add support for Multi Vports on Bare
> metal"
> * 5 clean cherry-picks from linux-next
> * 5da8a8b8090b: "PCI/MSI: Export pci_msix_prepare_desc() for
> dynamic MSI-X allocations"
> * ad518f2557b9: "PCI: hv: Allow dynamic MSI-X vector allocation"
> * 845c62c543d6: "net: mana: explain irq_setup() algorithm"
> * 845c62c543d6: "net: mana: Allow irq_setup() to skip cpus for
> affinity"
> * 7399ef984022: "net: mana: Set tx_packets to post gso processing
> packet count"
> * 2 backports from linux-next
> * 755391121038: "net: mana: Allocate MSI-X vectors dynamically"
> * 7768c5f41733: "net: mana: Add handler for hardware servicing events"
>
> * Jammy:
> * 2 clean cherry-picks from upstream
> * 2fc8a346625e: "net: mana: Support holes in device list reply msg"
> * 290e5d3c49f6: "net: mana: Add support for Multi Vports on Bare
> metal"
> * 2 clean cherry-picks from linux-next
> * 7399ef984022: "net: mana: Set tx_packets to post gso processing
> packet count"
> * 7768c5f41733: "net: mana: Add handler for hardware servicing events"
>
> [Test Plan]
>
> * Compile tested
> * Microsoft tested
>
> [Regression potential]
>
> * Changes are largely localized to MANA and Hyper-V, and either already
> upstream or queued for upstream in the next merge window. Possible
> regressions could result in unexpected behavior of MANA driver.
>
> [Other info]
>
> * SF#00413058
> * SF#00413050
> * SF#00413245
> * SF#00413047
> * SF#00411917
> * SF#00413476
Applied to Plucky/Noble/Jammy linux-azure master-next branches.
Thanks,
John
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