tree 6a715622e4a794be1721942b9dff84942d5bd186
parent 8978cc921fc7fad3f4d6f91f1da01352aeeeff25
author Saeed Mahameed <saeedm@mellanox.com> 1515033351 +0200
committer Saeed Mahameed <saeedm@mellanox.com> 1515715300 +0200

net/mlx5: Fix get vector affinity helper function

mlx5_get_vector_affinity used to call pci_irq_get_affinity and after
reverting the patch that sets the device affinity via PCI_IRQ_AFFINITY
API, calling pci_irq_get_affinity becomes useless and it breaks RDMA
mlx5 users.  To fix this, this patch provides an alternative way to
retrieve IRQ vector affinity using legacy IRQ API, following
smp_affinity read procfs implementation.

Fixes: 231243c82793 ("Revert mlx5: move affinity hints assignments to generic code")
Fixes: a435393acafb ("mlx5: move affinity hints assignments to generic code")
Cc: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>