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| author | Jakub Kicinski <kuba@kernel.org> | 2025-06-17 14:43:58 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-06-17 14:44:41 -0700 |
| commit | 0f0decc777d7ed4d7ba316a5f92495e38c6fc6b1 (patch) | |
| tree | aa60ef15b2398b4796b652e54d54846f554ba82e /include/net/mana | |
| parent | 170e4e3944aa39accf64d869b27c187f8c08abc7 (diff) | |
| parent | 755391121038c06cb653241aa94dcabd87179f62 (diff) | |
| download | linux-0f0decc777d7ed4d7ba316a5f92495e38c6fc6b1.tar.gz linux-0f0decc777d7ed4d7ba316a5f92495e38c6fc6b1.tar.bz2 linux-0f0decc777d7ed4d7ba316a5f92495e38c6fc6b1.zip | |
Merge branch 'shradha_v6.16-rc1' of https://github.com/shradhagupta6/linux
Shradha Gupta says:
====================
Allow dyn MSI-X vector allocation of MANA
In this patchset we want to enable the MANA driver to be able to
allocate MSI-X vectors in PCI dynamically.
The first patch exports pci_msix_prepare_desc() in PCI to be able to
correctly prepare descriptors for dynamically added MSI-X vectors.
The second patch adds the support of dynamic vector allocation in
pci-hyperv PCI controller by enabling the MSI_FLAG_PCI_MSIX_ALLOC_DYN
flag and using the pci_msix_prepare_desc() exported in first patch.
The third patch adds a detailed description of the irq_setup(), to
help understand the function design better.
The fourth patch is a preparation patch for mana changes to support
dynamic IRQ allocation. It contains changes in irq_setup() to allow
skipping first sibling CPU sets, in case certain IRQs are already
affinitized to them.
The fifth patch has the changes in MANA driver to be able to allocate
MSI-X vectors dynamically. If the support does not exist it defaults to
older behavior.
* 'shradha_v6.16-rc1' of https://github.com/shradhagupta6/linux:
net: mana: Allocate MSI-X vectors dynamically
net: mana: Allow irq_setup() to skip cpus for affinity
net: mana: explain irq_setup() algorithm
PCI: hv: Allow dynamic MSI-X vector allocation
PCI/MSI: Export pci_msix_prepare_desc() for dynamic MSI-X allocations
====================
Link: https://patch.msgid.link/1749650984-9193-1-git-send-email-shradhagupta@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/mana')
| -rw-r--r-- | include/net/mana/gdma.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index bfae59202669..6fe6cbcd512d 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -388,7 +388,7 @@ struct gdma_context { unsigned int max_num_queues; unsigned int max_num_msix; unsigned int num_msix_usable; - struct gdma_irq_context *irq_contexts; + struct xarray irq_contexts; /* L2 MTU */ u16 adapter_mtu; @@ -580,6 +580,9 @@ enum { /* Driver can handle holes (zeros) in the device list */ #define GDMA_DRV_CAP_FLAG_1_DEV_LIST_HOLES_SUP BIT(11) +/* Driver supports dynamic MSI-X vector allocation */ +#define GDMA_DRV_CAP_FLAG_1_DYNAMIC_IRQ_ALLOC_SUPPORT BIT(13) + /* Driver can self reset on FPGA Reconfig EQE notification */ #define GDMA_DRV_CAP_FLAG_1_HANDLE_RECONFIG_EQE BIT(17) @@ -589,6 +592,7 @@ enum { GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG | \ GDMA_DRV_CAP_FLAG_1_VARIABLE_INDIRECTION_TABLE_SUPPORT | \ GDMA_DRV_CAP_FLAG_1_DEV_LIST_HOLES_SUP | \ + GDMA_DRV_CAP_FLAG_1_DYNAMIC_IRQ_ALLOC_SUPPORT | \ GDMA_DRV_CAP_FLAG_1_HANDLE_RECONFIG_EQE) #define GDMA_DRV_CAP_FLAGS2 0 |