Fix panic on shutdown due to iscsi event priority

iscsi's shutdown_pre_sync prio was SHUTDOWN_PRI_FIRST which caused it to
run before other high priority handlers such as filesystems e.g. ZFS.

This

Fix panic on shutdown due to iscsi event priority

iscsi's shutdown_pre_sync prio was SHUTDOWN_PRI_FIRST which caused it to
run before other high priority handlers such as filesystems e.g. ZFS.

This meant the iscsi sessions where removed before the ZFS geom consumer
was closed, resulting in a panic from g_access calls on debug kernels
due to negative acr.

Instead use the same as the old iscsi_initiator SHUTDOWN_PRI_DEFAULT-1
which allows it to run before dashutdown etc but after filesystems.

MFC after: 2 weeks
Sponsored by: Multiplay

show more ...

Do not generate PDUs with payload greater than max_data_segment_length.

It is perhaps preferable to have a separate limit for send instead of
reusing the receive limit. I'll discuss with trasz@ and

Do not generate PDUs with payload greater than max_data_segment_length.

It is perhaps preferable to have a separate limit for send instead of
reusing the receive limit. I'll discuss with trasz@ and mav@ before
pulling this into head.

show more ...

s/is->is_conn/ic to shorten things a bit.

Merge from head

Sponsored by: Gandi.net

Finish merging from head, messed up in previous attempt

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285924 through r286421.

Rework the way iSCSI initiator handles system shutdown. This fixes
hangs on shutdown with LUNs with mounted filesystems over a disconnected
iSCSI session.

MFC after: 1 month
Sponsored by: The FreeBS

Rework the way iSCSI initiator handles system shutdown. This fixes
hangs on shutdown with LUNs with mounted filesystems over a disconnected
iSCSI session.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3052

show more ...

Merge sync of head

Merge from HEAD

MFH: r278202,r278205-r278590

Sponsored by: The FreeBSD Foundation

Merge ^/head r278351 through r278498.

Extend ICL to add receive offload methods. For software ICL backend
they are no-ops.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Merge from HEAD

Merging ^/head r278224 through r278297.

Don't call callout_drain() with iscsi mutex held; this fixes a warning
that was introduced recently. While here, don't try to access is_terminating
without lock.

MFC after: 1 month
Sponsored by: Th

Don't call callout_drain() with iscsi mutex held; this fixes a warning
that was introduced recently. While here, don't try to access is_terminating
without lock.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

show more ...

Fix error handling.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Make it possible to set (via iscsi.conf(5)) and query (via iscsictl -v)
initiator iSCSI offload. Pass maximum data segment size supported by
chosen offload module to iscsid(8), and make iscsid(8) no

Make it possible to set (via iscsi.conf(5)) and query (via iscsictl -v)
initiator iSCSI offload. Pass maximum data segment size supported by
chosen offload module to iscsid(8), and make iscsid(8) not try to negotiate
anything larger than that.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

show more ...

Merge ^/head r277956 through r277974.

Add kobj interface between ICL and the rest of the iSCSI stack.
Review note - icl.c was moved to icl_soft.c.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Reintegrate head: r274132-r277384

Sponsored by: The FreeBSD Foundation

Reintegrate head revisions r273096-r277147

Sponsored by: The FreeBSD Foundation

MFhead @ r276594

Merge ^/head r274961 through r276301.

Slightly polish iSCSI parameters negotiation.

MFC after: 1 week