The following patches were made over Martin's 5.14 branch. They focus on iscsi and scsi error handler bugs. This set combines the 2 patchsets I've been posting to hopefully make it easier to backport just the in-kernel fixes. in-kernel conn failure handling fixes ------------------------------------- V4: - Fix case where we get multiple events for the same root issue, and userspace and the kernel get out of sync due to multiple stops/cleanups V3: - Rebase over https://urldefense.com/v3/__https://lore.kernel.org/linux-scsi/20210424220603.123703-1-michael.christie@xxxxxxxxxx/T/*t__;Iw!!GqivPVa7Brio!NdLMhOLAuEkbeyD-V8vbq1PDCQp51g1-HKalQU_YRA2dNB9qsEP4DAN8HvS0Dkwpflw-$ - Add fix for if we are doing offload boot and hit a conn failure at the same time userspace is syncing up it's state and doing a relogin. - Drop RFC as google has tested. V2: - Handle second part of #4 above and fix missing locking - Include iscsi_tcp kernel sock shutdown patch libiscsi and qedi TMF fixes --------------------------- V5: - Reduce number of error events sent for the same issue and handle when libiscsi sends error events before we evern have a valid conn binding. - Drop tmf state check patch because we already were checking that and qedi's session blocking was just plain not needed - Drop cmd wait patch and replace with conn refcount patch - Fix case where session reset could access a freed conn by grabbing a ref to conn - Have libiscsi handle iscsi_task refcounts during aborts for the drivers V4: - Rm unused rtid variable in qedi - Added a default case in TMF switch just in case people do not like not having it. V3: - Fix u16 initialization and test. - Fix bool return value use. - Added patches for cases where EH is running then userspace terminates the connection without removing the target first. - Made patch that stops IO during ep_disconnect more driver friendly by handling if the ep is bound or not. V2: - Dropped patch that reverted the in-kernel conn failure handling. I posted a full patchset to fix that separately. - Modfied the tmf vs cmd queueing patch. The RFC patch only supported qedi and offload drivers. iscsi_tcp/cxgbgi do not need it. - Added patch for another issue found where cmds can still be queued to the driver while it does ep_disconnect.
