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authorMax Gurtovoy <mgurtovoy@nvidia.com>2024-01-23 16:40:32 +0200
committerKeith Busch <kbusch@kernel.org>2024-03-02 15:18:08 -0800
commitf096ba3286f5e773c496cf81667d01f2e8a2a37b (patch)
treeabbd2d89598d1ec6ea9d510a4c1dc25d74d95cfd /drivers/nvme
parentca2b221d89a81849a2f4a25d024a3d527a210ab6 (diff)
downloadlinux-f096ba3286f5e773c496cf81667d01f2e8a2a37b.tar.gz
nvmet-rdma: set max_queue_size for RDMA transport
A new port configuration was added to set max_queue_size. Clamp user configuration to RDMA transport limits. Increase the maximal queue size of RDMA controllers from 128 to 256 (the default size stays 128 same as before). Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Israel Rukshin <israelr@nvidia.com> Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/target/rdma.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index b3f8416ec8030..f2bb9d95ecf4b 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -1956,6 +1956,14 @@ static int nvmet_rdma_add_port(struct nvmet_port *nport)
nport->inline_data_size = NVMET_RDMA_MAX_INLINE_DATA_SIZE;
}
+ if (nport->max_queue_size < 0) {
+ nport->max_queue_size = NVME_RDMA_DEFAULT_QUEUE_SIZE;
+ } else if (nport->max_queue_size > NVME_RDMA_MAX_QUEUE_SIZE) {
+ pr_warn("max_queue_size %u is too large, reducing to %u\n",
+ nport->max_queue_size, NVME_RDMA_MAX_QUEUE_SIZE);
+ nport->max_queue_size = NVME_RDMA_MAX_QUEUE_SIZE;
+ }
+
ret = inet_pton_with_scope(&init_net, af, nport->disc_addr.traddr,
nport->disc_addr.trsvcid, &port->addr);
if (ret) {