diff options
| author | Nick Child <nnac123@linux.ibm.com> | 2022-11-11 00:32:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-11-14 13:47:07 +0300 |
| commit | 44fbc1b6e0e291df1d31f5080777ce66a72ef37a (patch) | |
| tree | c1e1e81d86557a159e0449e6eff230b5566b8c01 /drivers/net/ethernet/ibm/ibmvnic.h | |
| parent | e384cf35bf0c83284eb37785d21d39bbe2568adf (diff) | |
| download | linux-44fbc1b6e0e291df1d31f5080777ce66a72ef37a.tar.xz | |
ibmvnic: Assign IRQ affinity hints to device queues
Assign affinity hints to ibmvnic device queue interrupts.
Affinity hints are assigned and removed during sub-crq init and
teardown, respectively. This update should improve latency if
utilized as interrupt lines and processing are more equally
distributed among CPU's. This implementation is based on the
virtio_net driver.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Reviewed-by: Rick Lindsley <ricklind@linux.ibm.com>
Reviewed-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ibm/ibmvnic.h')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h index e5c6ff3d0c47..6720fec1ae67 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.h +++ b/drivers/net/ethernet/ibm/ibmvnic.h @@ -825,6 +825,7 @@ struct ibmvnic_sub_crq_queue { atomic_t used; char name[32]; u64 handle; + cpumask_var_t affinity_mask; } ____cacheline_aligned; struct ibmvnic_long_term_buff { |