]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
iscsi-target: Disable Immediate + Unsolicited Data with ISER Protection
authorNicholas Bellinger <nab@linux-iscsi.org>
Wed, 14 May 2014 20:54:26 +0000 (20:54 +0000)
committerNicholas Bellinger <nab@linux-iscsi.org>
Fri, 16 May 2014 00:09:12 +0000 (17:09 -0700)
commit52d0aa7980cfee85c831b2969e659055395386d4
tree0d322479c93b9484e37d6db04a6c2da296e4d499
parented8ec8f707ed4760c124d47b27c93df8ec5b1eba
iscsi-target: Disable Immediate + Unsolicited Data with ISER Protection

This patch explicitly disables Immediate + Unsolicited Data for ISER
connections during login in iscsi_login_zero_tsih_s2() when protection
has been enabled for the session by the underlying hardware.

This is currently required because protection / signature memory regions
(MRs) expect T10 PI to occur on RDMA READs + RDMA WRITEs transfers, and
not on a immediate data payload associated with ISCSI_OP_SCSI_CMD, or
unsolicited data-out associated with a ISCSI_OP_SCSI_DATA_OUT.

v2 changes:
  - Add TARGET_PROT_DOUT_INSERT check (Sagi)
  - Add pr_debug noisemaker (Sagi)
  - Add goto to avoid early return from MRDSL check (nab)

Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
drivers/target/iscsi/iscsi_target_login.c