mirror of
https://github.com/SCST-project/scst.git
synced 2026-05-25 16:00:19 +00:00
543989b3a2
Running fio at the initiator side with buffer size 1 MiB and when using direct I/O triggers the following error with a ConnectX-3 and Linux kernel v4.19 or later or CentOS 7.7 or later at the target side: ib_srpt: RDMA t 4 for idx 20 failed with status 5. If this has not been triggered by a cable pull, please check the involved IB HCA's and cables. This was observed with firmware version 2.42.5000 but this is probably independent of the firmware version. Fix this by reducing the send SGE QP limit. This patch increases ch->max_recv_sge for older kernel versions. Reported-by: Chesnokov Gleb <Chesnokov.G@raidix.com> git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8938 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Overview ======== This is the SCST development repository. It contains not a single project SCST as one can think, but a number of them, which are divided as the following: 1. SCST core in scst/ subdirectory 2. Administration utility for SCST core scstadmin in scstadmin/ 3. Target drivers in own subdirectories qla2x00t/, iscsi-scst/, etc. 4. User space programs in usr/ subdirectory, like fileio_tgt. 5. Some various docs in doc/ subdirectory. Those subprojects are in most cases independent from each other, although some of them depend from the SCST core. They put in the single repository only to simplify their development, they are released independently. Thus, use "make all" only if you really need to build everything. Otherwise build only what you need, like for iSCSI-SCST: make scst scst_install iscsi iscsi_install For more information about each subproject see their README files. QLogic target driver ==================== The QLogic target driver qla2x00t is the old driver, forked from qla2xxx several years ago. It is very stable, well tested and actively used in many production setups. There is also a new driver that supports 32 Gb/s FC in the qla2x00t-32gbit directory. That driver has not yet reached the same maturity level as the old qla2x00t driver. Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net