This patch series makes the ib_srp driver better suited for use in a H.A. setup because: - Switchover without triggering read or write errors become possible. Such errors are bad because these can make a filesystem switch to read-only mode. - A ping mechanism has been added that allows to reduce the switch-over time greatly. - Disconnecting from a target without unloading ib_srp becomes possible. - Switchover can be triggered explicitly by deleting an initiator device.
Where possible these mechanisms have been modelled after similar functionality in the open-iscsi kernel code. According to the measurements I ran these patches do not affect ib_srp performance. The individual patches are: 0001-ib_srp-Introduce-pr_fmt.patch 0002-ib_srp-Consolidate-repetitive-sysfs-code.patch 0003-ib_srp-Disallow-duplicate-logins.patch 0004-ib_srp-Set-block-layer-timeout.patch 0005-ib_srp-Avoid-that-late-SRP-replies-cause-trouble.patch 0006-ib_srp-Micro-optimize-completion-handlers.patch 0007-ib_srp-Introduce-srp_handle_qp_err.patch 0008-srp_transport-Document-sysfs-attributes.patch 0009-srp_transport-Fix-atttribute-registration-race.patch 0010-srp_transport-Simplify-attribute-initialization-code.patch 0011-ib_srp-Document-sysfs-attributes.patch 0012-ib_srp-Rework-error-handling.patch 0013-ib_srp-Implement-transport-layer-ping.patch 0014-ib_srp-Allow-SRP-disconnect-through-sysfs.patch -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
