linux_dsm_epyc7002/drivers/infiniband
Max Gurtovoy c313e91b97 IB/isert: add module param to set sg_tablesize for IO cmd
[ Upstream commit dae7a75f1f19bffb579daf148f8d8addd2726772 ]

Currently, iser target support max IO size of 16MiB by default. For some
adapters, allocating this amount of resources might reduce the total
number of possible connections that can be created. For those adapters,
it's preferred to reduce the max IO size to be able to create more
connections. Since there is no handshake procedure for max IO size in iser
protocol, set the default max IO size to 1MiB and add a module parameter
for enabling the option to control it for suitable adapters.

Fixes: 317000b926 ("IB/isert: allocate RW ctxs according to max IO size")
Link: https://lore.kernel.org/r/20201019094628.17202-1-mgurtovoy@nvidia.com
Reported-by: Krishnamraju Eraparaju <krishna2@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-23 15:53:23 +01:00
..
core RDMA/cma: Fix error flow in default_roce_mode_store 2021-01-27 11:55:08 +01:00
hw RDMA/cxgb4: Fix the reported max_recv_sge value 2021-02-03 23:28:46 +01:00
sw RDMA/siw,rxe: Make emulated devices virtual in the device tree 2021-01-09 13:46:24 +01:00
ulp IB/isert: add module param to set sg_tablesize for IO cmd 2021-02-23 15:53:23 +01:00
Kconfig RMDA/sw: Don't allow drivers using dma_virt_ops on highmem configs 2020-11-12 13:27:41 -04:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00