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authorSagi Grimberg <sagig@mellanox.com>2014-02-19 19:50:17 +0400
committerNicholas Bellinger <nab@linux-iscsi.org>2014-04-07 12:48:42 +0400
commitb5b8e2989e3406798dbb88fbb4eaafbbf1a56f6a (patch)
treecd301ec29007c124aaa71ac6ce4fb60231761719 /include/target
parent80dcd0c10482719bd9250b7d11bd5c360a02403a (diff)
downloadlinux-b5b8e2989e3406798dbb88fbb4eaafbbf1a56f6a.tar.xz
Target/dif: Introduce protection-passthough-only mode
Some transports (iSCSI/iSER/SRP/FC) support hardware INSERT/STRIP capabilities while other transports like loopback/vhost-scsi need perform this is software. This patch allows fabrics using SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC to signal the early LUN scan handling case where PROTECT CDB bits are set, but no fabric buffer has been provided. For transports which use generic new command these buffers have yet to be allocated. Also this way, target may support protection information against legacy initiators (writes are inserted and reads are stripped). (Only set prot_pto for loopback during early special case - nab) Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
-rw-r--r--include/target/target_core_base.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5ae92492d1ee..82cb4ed06f71 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -570,6 +570,7 @@ struct se_cmd {
enum target_prot_ho prot_handover;
sense_reason_t pi_err;
sector_t bad_sector;
+ bool prot_pto;
};
struct se_ua {