diff options
| author | Piotr Raczynski <piotr.raczynski@intel.com> | 2023-05-15 21:03:19 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-05-16 09:38:38 -0700 |
| commit | 011670cc340cbc1131677fe233b1a52acee969ee (patch) | |
| tree | 439b5731d00976d4f8395dd722a022db08260e1a /drivers/net/ethernet/intel/ice/ice.h | |
| parent | cfebc0a36ea5518d6b32a6999da5accf0a94fafa (diff) | |
ice: add dynamic interrupt allocation
Currently driver can only allocate interrupt vectors during init phase by
calling pci_alloc_irq_vectors. Change that and make use of new
pci_msix_alloc_irq_at/pci_msix_free_irq API and enable to allocate and free
more interrupts after MSIX has been enabled. Since not all platforms
supports dynamic allocation, check it with pci_msix_can_alloc_dyn.
Extend the tracker to keep track how many interrupts are allocated
initially so when all such vectors are already used, additional interrupts
are automatically allocated dynamically. Remember each interrupt allocation
method to then free appropriately. Since some features may require
interrupts allocated dynamically add appropriate VSI flag and take it into
account when allocating new interrupt.
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 8541d986ec7f..d637032c8139 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -338,6 +338,9 @@ struct ice_vsi { u32 rx_buf_failed; u32 rx_page_failed; u16 num_q_vectors; + /* tell if only dynamic irq allocation is allowed */ + bool irq_dyn_alloc; + enum ice_vsi_type type; u16 vsi_num; /* HW (absolute) index of this VSI */ u16 idx; /* software index in pf->vsi[] */ |