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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