[PATCH v2 0/8] Introduce new max-queue-size configuration

Max Gurtovoy
2024-01-04T09:26:18Z

Hi Christoph/Sagi/Keith,
This patch series is mainly for adding an interface for a user to
configure the maximal queue size for fabrics via port configfs. Using
this interface a user will be able to better control the system and HW
resources.

Also, I've increased the maximal queue depth for RDMA controllers to be
256 after request from Guixin Liu. This new value will be valid only for
controllers that don't support PI.

While developing this feature I've made some minor cleanups as well.

Changes from v1:
- collected Reviewed-by signatures (Sagi and Guixin Liu)
- removed the patches that unify fabric host and target max/min/default
queue size definitions (Sagi)
- align MQES and SQ size according to the NVMe Spec (patch 2/8)

Max Gurtovoy (8):
nvme-rdma: move NVME_RDMA_IP_PORT from common file
nvmet: compare mqes and sqsize only for IO SQ
nvmet: set maxcmd to be per controller
nvmet: set ctrl pi_support cap before initializing cap reg
nvme-rdma: introduce NVME_RDMA_MAX_METADATA_QUEUE_SIZE definition
nvme-rdma: clamp queue size according to ctrl cap
nvmet: introduce new max queue size configuration entry
nvmet-rdma: set max_queue_size for RDMA transport

drivers/nvme/host/rdma.c | 19 ++++++++++++++-----
drivers/nvme/target/admin-cmd.c | 2 +-
drivers/nvme/target/configfs.c | 28 ++++++++++++++++++++++++++++
drivers/nvme/target/core.c | 18 ++++++++++++++++--
drivers/nvme/target/discovery.c | 2 +-
drivers/nvme/target/fabrics-cmd.c | 5 ++---
drivers/nvme/target/nvmet.h | 6 ++++--
drivers/nvme/target/passthru.c | 2 +-
drivers/nvme/target/rdma.c | 10 ++++++++++
include/linux/nvme-rdma.h | 6 +++++-
include/linux/nvme.h | 2 --
11 files changed, 82 insertions(+), 18 deletions(-)

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2.18.1