BMC/Intel-BMC/linux.git/drivers/infiniband/ulp/isert, branch dev-4.6

iser-target: Use ib_drain_qp

2016-03-31T03:05:15+00:00

Now the rdma core offers a QP draining service in v4.6-rc1, use it instead of our own. Signed-off-by: Sagi Grimberg Reported-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger

iser-target: Kill the ->isert_cmd back pointer in struct iser_tx_desc

2016-03-11T05:48:51+00:00

We only use the pointer when processing regular iSER commands, and it then always points to the struct iser_cmd that contains the TX descriptor. Remove it and rely on container_of to save a little space and avoid a pointer that is updated multiple times per processed command. Signed-off-by: Christoph Hellwig Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Kill struct isert_rdma_wr

2016-03-11T05:48:49+00:00

There is exactly one instance per struct isert_cmd, so merge the two to simplify everyones life. Signed-off-by: Christoph Hellwig Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Convert to new CQ API

2016-03-11T05:48:47+00:00

Use the workqueue based CQ type similar to what isert was using previously, and properly split up the completion handlers. Note that this also takes special care to handle the magic login WRs separately, and also renames the submission functions so that it's clear that they are only to be used for the login buffers. (Fix up isert_print_wc usage in isert_beacon_done - nab) Signed-off-by: Christoph Hellwig [sagig: added iscsi conn reinstatement in non-flush error completions and added error completion type print] Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Split and properly type the login buffer

2016-03-11T05:48:44+00:00

The login receive buffer is used as a iser_rx_desc, so type it as such in struct isert_conn and allocate the exactly right space for it. The TX buffer is moved to a separate variable and properly sized as well. Signed-off-by: Christoph Hellwig Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Remove ISER_RECV_DATA_SEG_LEN

2016-03-11T05:48:42+00:00

This is the same as ISCSI_DEF_MAX_RECV_SEG_LEN (and must be the same given the structure layouts), so just use that constant instead. This also allows removing ISER_RX_LOGIN_SIZE in favor of ISER_RX_PAYLOAD_SIZE. Signed-off-by: Christoph Hellwig Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Remove impossible condition from isert_wait_conn

2016-03-11T05:48:40+00:00

We can never get to isert_wait_conn in INIT state anymore, so get rid of this condition. Signed-off-by: Jenny Derzhavetz Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Remove redundant wait in release_conn

2016-03-11T05:48:38+00:00

With current termination flow we call release_conn after completion. Signed-off-by: Jenny Derzhavetz Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iser-target: Rework connection termination

2016-03-11T05:48:36+00:00

When we receive an event that triggers connection termination, we have a a couple of things we may want to do: 1. In case we are already terminating, bailout early 2. In case we are connected but not bound, disconnect and schedule a connection cleanup silently (don't reinstate) 3. In case we are connected and bound, disconnect and reinstate the connection This rework fixes a bug that was detected against a mis-behaved initiator which rejected our rdma_cm accept, in this stage the isert_conn is no bound and reinstate caused a bogus dereference. What's great about this is that we don't need the post_recv_buf_count anymore, so get rid of it. Signed-off-by: Jenny Derzhavetz Signed-off-by: Sagi Grimberg Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Nicholas Bellinger

iser-target: Separate flows for np listeners and connections cma events

2016-03-11T05:48:33+00:00

No need to restrict this check to specific events. Signed-off-by: Jenny Derzhavetz Signed-off-by: Sagi Grimberg Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Nicholas Bellinger