The purpose of this InfiniBand SRP initiator patch series is as follows: - Make the SRP initiator driver better suited for use in a H.A. setup. Add fast_io_fail_tmo, dev_loss_tmo and reconnect_delay parameters. With the default values of these parameters failover happens significantly faster. The dev_loss mechanism can be disabled which makes it possible to avoid device removal which is necessary when e.g. using initiator side mirroring. - Improve performance by making the queue size configurable. - Make it possible to figure out which SCSI host corresponds to which SRP initiator port by making the SGID (source GID) available in sysfs.
The changes since the previous version of this patch series are as follows (see also http://thread.gmane.org/gmane.linux.drivers.rdma/17058/):
- Split the scsi_transport_srp changes in two patches to make review easier. - Added a patch for exporting the SGID via sysfs. - Included a few fixes for the rport state transition algorithm for issues discovered while testing this patch series on a larger setup (initiator with 4 IB ports and target with 8 IB ports or 32 SRP paths between initiator and target in total). The individual patches in this series are: 0001-IB-srp-Make-transport-layer-retry-count-configurable.patch 0002-IB-srp-Keep-rport-as-long-as-the-IB-transport-layer.patch 0003-scsi_transport_srp-Add-transport-layer-error-handlin.patch 0004-IB-srp-Use-SRP-transport-layer-error-recovery.patch 0005-IB-srp-Start-timers-if-a-transport-layer-error-occur.patch 0006-scsi_transport_srp-Add-periodic-reconnect-support.patch 0007-IB-srp-Add-periodic-reconnect-functionality.patch 0008-IB-srp-Export-sgid-to-sysfs.patch 0009-IB-srp-Introduce-srp_alloc_req_data.patch 0010-IB-srp-Make-queue-size-configurable.patch -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
