Certain storage configurations, e.g. a sufficiently large array of hard disks in a RAID configuration, need a queue depth above 64 to achieve optimal performance. Hence make the queue depth configurable. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Tested-by: Jack Wang <xjtuwjp@gmail.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
On an initiator system with multiple IB ports it is not yet possible to figure out what the originating port of an SRP connection is. Hence make the source GID available in sysfs. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
Add support for periodically reconnecting to an SRP target until the dev_loss timer expires. After the tenth reconnection attempt, gradually slow down subsequent reconnect attempts. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
Add the necessary functions in the SRP transport module to allow an SRP initiator driver to implement transport layer error handling similar to the functionality already provided by the FC transport layer. This includes: - Support for implementing fast_io_fail_tmo, the time that should elapse after having detected a transport layer problem and before failing I/O. - Support for implementing dev_loss_tmo, the time that should elapse after having detected a transport layer problem and before removing a remote port. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
Allow the InfiniBand RC retry count to be configured by the user as an option in the target login string. Reducing this retry count allows to reduce the path failover time. Signed-off-by: Vu Pham <vu@mellanox.com> [ bvanassche: Rewrote patch description / changed default retry count ] Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
Some links to projects web pages and e-mail addresses in ACPI/PM documentation and Kconfig are outdated, so update them. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull InfiniBand/RDMA changes from Roland Dreier: - AF_IB (native IB addressing) for CMA from Sean Hefty - new mlx5 driver for Mellanox Connect-IB adapters (including post merge request fixes) - SRP fixes from Bart Van Assche (including fix to first merge request) - qib HW driver updates - resurrection of ocrdma HW driver development - uverbs conversion to create fds with O_CLOEXEC set - other small changes and fixes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (66 commits) mlx5: Return -EFAULT instead of -EPERM IB/qib: Log all SDMA errors unconditionally IB/qib: Fix module-level leak mlx5_core: Adjust hca_cap.uar_page_sz to conform to Connect-IB spec IB/srp: Let srp_abort() return FAST_IO_FAIL if TL offline IB/uverbs: Use get_unused_fd_flags(O_CLOEXEC) instead of get_unused_fd() mlx5_core: Fixes for sparse warnings IB/mlx5: Make profile[] static in main.c mlx5: Fix parameter type of health_handler_t mlx5: Add driver for Mellanox Connect-IB adapters IB/core: Add reserved values to enums for low-level driver use IB/srp: Bump driver version and release date IB/srp: Make HCA completion vector configurable IB/srp: Maintain a single connection per I_T nexus IB/srp: Fail I/O fast if target offline IB/srp: Skip host settle delay IB/srp: Avoid skipping srp_reset_host() after a transport error IB/srp: Fix remove_one crash due to resource exhaustion IB/qib: New transmitter tunning settings for Dell 1.1 backplane IB/core: Fix error return code in add_port() ...