Hi Nic,
I'd like to check with you what would be the easiest way to enhance the
LIO iser code such that discovery can be carried out over iser
session/connection too, basically from the initiator we send TEXT PDU of
type sendtargets, and I hit this warning.
[ 2414.799129] i_buf: iqn.1994-05.com.redhat:e977fe6d73e, s_buf:
Discovery, t_buf: (null)
[ 2414.801701] Got unknown iSCSI OpCode: 0x04
[ 2414.823390] Pid: 10971, comm: kworker/0:0 Not tainted 3.9.0-rc3-perf+ #13
[ 2414.823394] Call Trace:
[ 2414.823403] [<ffffffffa03aecce>] ? isert_cq_rx_work+0x12e/0x820
[ib_isert]
[ 2414.823408] [<ffffffff810534d0>] ? process_one_work+0x140/0x3c0
[ 2414.823410] [<ffffffff81053b9b>] ? worker_thread+0x11b/0x440
[ 2414.823417] [<ffffffff81061dd0>] ? __wake_up_common+0x50/0x80
[ 2414.823419] [<ffffffff81053a80>] ? manage_workers+0x330/0x330
[ 2414.823421] [<ffffffff81053a80>] ? manage_workers+0x330/0x330
[ 2414.823424] [<ffffffff8105a1be>] ? kthread+0xce/0xe0
[ 2414.823430] [<ffffffff8105a0f0>] ? kthread_parkme+0x30/0x30
[ 2414.823433] [<ffffffff813e1c2c>] ? ret_from_fork+0x7c/0xb0
[ 2414.823436] [<ffffffff8105a0f0>] ? kthread_parkme+0x30/0x30
[ 2445.881684] i_buf: iqn.1994-05.com.redhat:e977fe6d73e, s_buf:
Discovery, t_buf: (null)
To test that from the initiator (thanks Mike!) all you need to do is the
following command and the patch below
$ iscsiadm -m discovery -t st -p ip:port -I iser -d 8
index f19b099..7d242c3 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -700,7 +700,7 @@ static struct scsi_host_template iscsi_iser_sht = {
static struct iscsi_transport iscsi_iser_transport = {
.owner = THIS_MODULE,
.name = "iser",
- .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T,
+ .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T |
CAP_TEXT_NEGO,
/* session management */
.create_session = iscsi_iser_session_create,
.destroy_session = iscsi_iser_session_destroy,
--
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