Due to the loop complexicity in nes_nic.c, I'm using char* to copy mc addresses
to it.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch replaces dev->mc_count in all drivers (hopefully I didn't miss
anything). Used spatch and did small tweaks and conding style changes when
it was suitable.
Jirka
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the remote node's ethernet address changes, the connection keeps
trying to connect using the old address. The connection wil continue
failing until the driver is unloaded and loaded again (eiter reboot or
rmmod). Fix this by checking that the NIC has the correct address
before starting a connection.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
A FIN that is received during an MPA start up sequence causes a
timeout in iwcm.c. The connection has not been completely closed so
the iwcm code is waiting for resources to be cleaned up. This closes
the connection so everything cleans up correctly.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
We fail when creating many qps as kmap() fails for sq_vbase.
Fix this by doing kunmap() as soon as we are done with sq_vbase.
We do kunmap() in one of the locations below:
(1) nes_destroy_qp()
(2) nes_accept()
(3) nes_connect_event
We keep a flag to avoid multiple calls to kunmap().
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
STags are generated randomly but the driver does not correctly prevent
a zero STag. Using STag zero is privileged and causes a user space
application to fail. This change prevents the driver from trying to
allocate a zero STag.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
While running a Xansation test, an active side node crashed. The
problem started on the passive side, which generated an STtag that was
0. The passive side sent a TERMINATE instead of an MPA REJECT msg.
The active side, receives TERMINATE and sends connect_err() and set
the cm_node state to CLOSED. The passive side sends FIN + ACK after
TERMINATE. Active side ends up in handle_ack_pkt() and send_reset().
send_reset() consumes 1 cm_node's ref_count. Because the cm_node is
in CLOSED state, which means that cm_node will be destroyed after
completion of the connect_err() indication, CM will crash after
send_reset().
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When the listener is destroyed for a loopback connection, the listener
node gets a reset event. This causes a crash as the listener is not
expecting a reset event. Code review of cm_event_reset() during
debugging showed the cm_id ref count is incremented after calling its
event handler and not before.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
While running IMP_EXT's window test, we saw a crash in nes_accept().
Here is the sequence of what happened:
(1) In MVAPICH2, connect request is received for port #0.
FIX: Add a nes_connect() check to make sure local or remote tcp port
is not 0.
(2) Remote node's (passive) TCP stack sends a reset when it gets a
connect request because of port = 0. Active side set the connect
error to IW_CM_EVENT_STATUS_REJECTED when it received the RST from
remote node.
FIX: The corect error code is -ECONNRESET.
(3) Wrong error code of IW_CM_EVENT_STATUS_REJECTED causes the core to
destroy its listener ports. Here there are connections that may
have sent an MPA request up and waiting for accept or reject. But
the listener and its cm_nodes have been freed already causing the
crash noticed.
FIX: The cm_node is freed only if its state is not
NES_CM_STATE_MPAREQ_RCVD. If cm_node's state is
NES_CM_STATE_MPAREQ_RCVD then its new state is set to
NES_CM_STATE_LISTENER_DESTROYED and it is not freed. When
nes_accept() or nes_reject() is received, its state is checked
for NES_CM_STATE_LISTENER_DESTROYED and in this case the cm_node
is freed and error is returned.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
During testing of REJECT connection error handling, we saw that the
cm_id resources are not released. When the retransmit timer expires,
we need to send a reset message to remote node before issuing the
ABORTED event.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
During Xansation testing, we saw that error handling of MPA frame
msg/response is not handled properly.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The ORD size needs updating as we are supporting more inbound READ
resources per connection.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Change MAX_CM_BUFFER for MPA frames to be conformant to RFC 5044:
we need 512 + 20 instead of 512.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The size argument to ioremap_nocache should be the size of desired
information, not the pointer to it.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@expression@
expression *x;
@@
x =
<+...
*sizeof(x)
...+>// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Update copyright from Intel-NE, Inc. to Intel Corporation. Use proper
branding string in Kconfig and simplify description.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add a check to nes_create_cq() to return -EINVAL if creating a CQ with
depth > max_cqe (32766).
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add IB_SINGAL_ALL_WR support as an iWARP extension. If set, make sure
all WR for the QP are signalled. Consolidate flags used in nesqp
structure.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add additional PHY uC status check in case PHY firmware is not running
properly with heartbeat. Add a hard PHY reset if uC status is 0x0
after initial reset.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add support for IB_WR_SEND_WITH_INV, IB_WR_RDMA_READ_WITH_INV
and IB_WR_LOCAL_INV.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
On error, set bad_wr in nes_post_recv(). Stop processing ib_wr queue
when an error is detected.
Signed-off-by: Frank Zago <fzago@systemfabricworks.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
On error, set bad_wr in nes_post_send(). Stop processing ib_wr queue
when an error is detected.
Signed-off-by: Frank Zago <fzago@systemfabricworks.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
These string query operations were supposed to be replaced by the
generic get_sset_count() starting in 2007. Convert the remaining
implementations.
Also remove calls to these operations to initialise drvinfo->n_stats.
The ethtool core code already does that.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The definition of nes_netdev_ops has initializations of a local function
and eth_mac_addr for its ndo_set_mac_address field. This change uses only
the local function.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
identifier I, s, fld;
position p0,p;
expression E;
@@
struct I s =@p0 { ... .fld@p = E, ...};
@s@
identifier I, s, r.fld;
position r.p0,p;
expression E;
@@
struct I s =@p0 { ... .fld@p = E, ...};
@script:python@
p0 << r.p0;
fld << r.fld;
ps << s.p;
pr << r.p;
@@
if int(ps[0].line)!=int(pr[0].line) or int(ps[0].column)!=int(pr[0].column):
cocci.print_main(fld,p0)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Old query_port code reports static MTU and link state values.
Instead, map actual MTU to next largest IB_MTU_* constant and
correctly report link state.
Cc: Steve Wise <swise@opengridcomputing.com>
Reported-by: Jeff Squyres <jsquyres@cisco.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The disconn routine has been reworked to acoomodate the terminate and
flushing changes. The routine has been reorganized to make all the
decisions at the start then it performs all the required operations.
This simplified the lock handling and is easier to follow.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Use the flush status to fill in cqe status when a specific error has
been identified. Subsequent flushed completions still use the flushed
value.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When a flush request is given to the hw, it will place one cqe marked
as flushed (unless there is nothing to flush). An application that is
waiting for all wqe's to complete will be left hanging. This modifies
poll_cq to return the correct number of flushes for the pending
elements on the wq.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When an asynchronous event occurs that requires a terminate, it is
sometimes possible to identify the wqe in error. This change uses
flush to get this information to the poll routine. The flush
operation puts the status into the cqe. If this information is not
available, it continues to use the more generic flush code as before.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Implement the sending and receiving of Terminate packets.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
CQ errors are not being handled correctly. Put in the the upcall for
CQ errors.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When a QP is destroyed, unprocessed CQ entries could still reference
the QP. This change zeroes the context value at QP destroy time. By
skipping over cqe's with a zero context, poll_cq no longer processes a
cqe for a destroyed QP.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The routine to allocate a cqp request is not called from process
context code. Since it is not OK to sleep, it needs to use GFP_ATOMIC
not GFP_KERNEL.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The code currently has a work structure in the QP. This requires a
lock and a pending flag to ensure there is never more than one request
active. When two events happen quickly (such as FIN and LLP CLOSE),
it causes unnecessary timeouts since the second one is dropped.
This fix allocates memory for the work request so the second one can
be queued. A lock is removed since it is no longer needed.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
During termination, it is possible for the refcnt to go to zero while
the worker thread is posting events upward. This fix increments the
refcnt before the request is passed to the worker thread. The thread
decrements the refcnt when the request is completed.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Neil Horman <nhorman@txudriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
No need to put ethtool_ops in data, they should be const.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
During cluster testing, one QP was not closed, as FIN is not handled
properly when its rexmit count expires or in some cases when RST is is
received after sending FIN. The reason is that the cm_id does not get
decremented under these conditions.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
In nes_query_device(), max_qp_init_rd_atom is incorrectly set to
max_qp_wr. This was found when a test application had a dapl async
event error.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
With a postfix increment, i is incremented one past 10K/5K before the
loop ends, so the error messages will be displayed too soon if the
test succeeds on the last iteration. Fix the comparisons to be >
instead of >=.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
If reg_phys_mem() fails, we need to free memory allocated for MPA
frame with private data before returning the error. Also move
nes_add_ref() after the reg_phys_mem() is successful.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Running large cluster setup, we are hanging after many hours of
testing. Fixing this required going over the code and making sure the
rexmit entry was properly removed based on the cm_node's state and
packet received. Also when receiving a FIN packet, check seq# and
make sure there were no errors before calling handle_fin().
Following are the changes done in nes_cm.c:
* handle_ack_pkt() needs to return error value, so in case of error,
handle_fin() is not called. Some cleanup done while going over the code.
* handle_rst_pkt(), handling of cm_node's NES_CM_STATE_LAST_ACK is missing.
* process_packet(), in case of FIN only packet is received, call
check_seq() before processing.
* in handle_fin_pkt(), we are calling cleanup_retrans_entry() for all
conditions, even if the packets need to be dropped.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Under heavy load with large cluster testing, it may take longer to
receive a response to MPA requests. Change the driver to wait longer
after each rexmit to max time value.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
check_seq() was not checking if the seq#s have wrapped. Fix it.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When a connect request comes, apbvt should only be set for
non-loopback connections.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Remove the NES_DEBUG that is causing the compile warning about an
unused variable when INFINIBAND_NES_DEBUG is not enabled.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
/sys/class/infiniband/nes?/fw_ver is not displaying firmware version
properly (it shows 0.0.0 with the current code). Fill in the correct
firmware version number.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
With updated PHY firmware for SFP_D, setting the trace length to 1
inch for SFP_D provides a more stable link.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jiri Pirko