Doug, please consider this patch set for 4.13.
Saeed, care to get this into your testing environment?
This patch set is aiming to automatically find the optimal
queue <-> irq multi-queue assignments in storage ULPs (demonstrated
on nvme-rdma) based on the underlying rdma device irq affinity
settings.
Changes from v5:
- updated change log for patch #2
- removed nit indentation changes
Changes from v4:
- removed mlx5e assumptions on device home node irq affinity mappings
- rebased to 4.12-rc5
Changes from v3:
- Renamed mlx5_disable_msix -> mlx5_free_pci_vectors for symmetry reasons
Changes from v2:
- rebased to 4.12
- added review tags
Changes from v1:
- Removed mlx5e_get_cpu as Christoph suggested
- Fixed up nvme-rdma queue comp_vector selection to get a better match
- Added a comment on why we limit on @dev->num_comp_vectors
- rebased to Jens's for-4.12/block
- Collected review tags
Sagi Grimberg (7):
mlx5: convert to generic pci_alloc_irq_vectors
mlx5e: don't assume anything on the irq affinity mappings of the
device
mlx5: move affinity hints assignments to generic code
RDMA/core: expose affinity mappings per completion vector
mlx5: support ->get_vector_affinity
block: Add rdma affinity based queue mapping helper
nvme-rdma: use intelligent affinity based queue mappings
block/Kconfig | 5 +
block/Makefile | 1 +
block/blk-mq-rdma.c | 54 +++++++++++
drivers/infiniband/hw/mlx5/main.c | 9 ++
drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 -
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 54 +++++------
drivers/net/ethernet/mellanox/mlx5/core/eq.c | 9 +-
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/health.c | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/main.c | 106 ++++-----------------
.../net/ethernet/mellanox/mlx5/core/mlx5_core.h | 1 -
drivers/nvme/host/rdma.c | 29 ++++--
include/linux/blk-mq-rdma.h | 10 ++
include/linux/mlx5/driver.h | 8 +-
include/rdma/ib_verbs.h | 25 ++++-
15 files changed, 174 insertions(+), 142 deletions(-)
create mode 100644 block/blk-mq-rdma.c
create mode 100644 include/linux/blk-mq-rdma.h
--
2.7.4
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