Commit Graph

384 Commits

Author SHA1 Message Date
Linus Torvalds
3d1f337b3e Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (235 commits)
  [NETFILTER]: Add H.323 conntrack/NAT helper
  [TG3]: Don't mark tg3_test_registers() as returning const.
  [IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2
  [IPV6]: Nearly complete kzalloc cleanup for net/ipv6
  [IPV6]: Cleanup of net/ipv6/reassambly.c
  [BRIDGE]: Remove duplicate const from is_link_local() argument type.
  [DECNET]: net/decnet/dn_route.c: fix inconsequent NULL checking
  [TG3]: make drivers/net/tg3.c:tg3_request_irq() static
  [BRIDGE]: use LLC to send STP
  [LLC]: llc_mac_hdr_init const arguments
  [BRIDGE]: allow show/store of group multicast address
  [BRIDGE]: use llc for receiving STP packets
  [BRIDGE]: stp timer to jiffies cleanup
  [BRIDGE]: forwarding remove unneeded preempt and bh diasables
  [BRIDGE]: netfilter inline cleanup
  [BRIDGE]: netfilter VLAN macro cleanup
  [BRIDGE]: netfilter dont use __constant_htons
  [BRIDGE]: netfilter whitespace
  [BRIDGE]: optimize frame pass up
  [BRIDGE]: use kzalloc
  ...
2006-03-21 09:31:48 -08:00
Arnaldo Carvalho de Melo
e35fc38565 [INFINIBAND] ipoib: Remove leftover use of neigh_ops->destructor
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:46:40 -08:00
Michael S. Tsirkin
c5ecd62c25 [NET]: Move destructor from neigh->ops to neigh_params
struct neigh_ops currently has a destructor field, which no in-kernel
drivers outside of infiniband use.  The infiniband/ulp/ipoib in-tree
driver stashes some info in the neighbour structure (the results of
the second-stage lookup from ARP results to real link-level path), and
it uses neigh->ops->destructor to get a callback so it can clean up
this extra info when a neighbour is freed.  We've run into problems
with this: since the destructor is in an ops field that is shared
between neighbours that may belong to different net devices, there's
no way to set/clear it safely.

The following patch moves this field to neigh_parms where it can be
safely set, together with its twin neigh_setup.  Two additional
patches in the patch series update ipoib to use this new interface.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 22:25:41 -08:00
Eli Cohen
fd02e8038e IB/mthca: Query SRQ srq_limit fixes
Fix endianness handling of srq_limit: it is big-endian in the context
structure, so we need to swab it before returning it.

Also add support for srq_limit query for Tavor (non-MemFree) HCAs.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:26 -08:00
Roland Dreier
bfef73fa78 IPoIB: Get rid of useless test of queue length
In neigh_add_path(), the queue of delayed packets can never be full,
because the queue is always freshly created and cannot be found by any
other code path.  In fact, the test of the queue length is worse than
useless: if somehow the test ever triggered and path_rec_start() also
failed, then dev_kfree_skb_any() will be called twice on the same skb.
Fix this by deleting the useless test.  Pointed out by Michael
S. Tsirkin <mst@mellanox.co.il>.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:26 -08:00
Dotan Barak
e10e271bfd IB/mthca: Correct reported SRQ size in MemFree case.
MemFree devices need to reserve one shared receive queue (SRQ) work
request for internal use, so the capacity returned from the create_srq
and query_srq methods should be srq->max - 1.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:26 -08:00
Michael S. Tsirkin
dc05980dd7 IB/mad: Fix oopsable race on device removal
Fix an oopsable race debugged by Eli Cohen <eli@mellanox.co.il>:
After removing the port from port_list, ib_mad_port_close flushes
port_priv->wq before destroying the special QPs. This means that a
completion event could arrive, and queue a new work in this work queue
after flush.

This patch also removes an unnecessary flush_workqueue():
destroy_workqueue() already includes a flush.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:25 -08:00
Roland Dreier
bf17c1c7cc IB/srp: Coverity fix to srp_parse_options()
Fix leak found by Coverity: in the SRP_OPT_DGID case,
srp_parse_options() didn't free the result of match_strdup().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:25 -08:00
Roland Dreier
6b63e3015a IB/mthca: Coverity fix to mthca_init_eq_table()
Fix bug found by coverity: the loop body never executed, because it
was doing for (i = 0; i < MTHCA_EQ_CMD; ++i), but MTHCA_EQ_CMD is 0.
The correct loop bound is MTHCA_NUM_EQ, to loop over all EQs.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:25 -08:00
Roland Dreier
048975ac58 IB: Coverity fixes to sysfs.c
Fix two bugs found by coverity:
 - Memory leak in error path of alloc_group_attrs()
 - Fencepost error in state_show(): the test should be < ARRAY_SIZE(),
   not <= ARRAY_SIZE().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:25 -08:00
Jack Morgenstein
0b3ea0829c IPoIB: Move ipoib_ib_dev_flush() to ipoib workqueue
Move ipoib_ib_dev_flush() to ipoib's workqueue.  This keeps it ordered
with respect to other work scheduled by the ipoib driver.  This fixes
problems with races, for example:
 - ipoib_ib_dev_flush() has started running because of an IB event
 - user does ifconfig ib0 down
 - ipoib_mcast_stop_thread() gets called twice and waits for the same
   completion twice

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:24 -08:00
Roland Dreier
8b9ab02b69 IPoIB: Fix build now that neighbour destructor is in neigh_params
Fix the IPoIB build (which is broken in net-2.6.17 because of my
screw-up, which left out this chunk in ipoib_multicast.c). 
The neighbour destructor is now in neigh_params, so we don't
need to clear it in the ops structure.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:24 -08:00
Ami Perlmutter
702b2aaccf IB/uverbs: Use correct alt_pkey_index in modify QP
The old code incorrectly used the primary P_Key index as the alternate
index too.

Signed-off-by: Ami Perlmutter <amip@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:24 -08:00
Jack Morgenstein
f36e1793e2 IB/umad: Add support for large RMPP transfers
Add support for sending and receiving large RMPP transfers.  The old
code supports transfers only as large as a single contiguous kernel
memory allocation.  This patch uses linked list of memory buffers when
sending and receiving data to avoid needing contiguous pages for
larger transfers.

  Receive side: copy the arriving MADs in chunks instead of coalescing
  to one large buffer in kernel space.

  Send side: split a multipacket MAD buffer to a list of segments,
  (multipacket_list) and send these using a gather list of size 2.
  Also, save pointer to last sent segment, and retrieve requested
  segments by walking list starting at last sent segment. Finally,
  save pointer to last-acked segment.  When retrying, retrieve
  segments for resending relative to this pointer.  When updating last
  ack, start at this pointer.

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:23 -08:00
Roland Dreier
6ecb0c8496 IB/srp: Add SCSI host attributes to show target port
Add SCSI host attributes in sysfs that show the ID extension, IOC
GUID, service ID, P_Key and destination GID for each target port that
the SRP initiator connects to.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:23 -08:00
Sean Hefty
87fd1a11ae IB/cm: Check cm_id state before handling a REP
Move checking the state of a cm_id before modifying it when handling a
REP.  This fixes a bug seen under MPI scale-up testing, where a NULL
timewait_info pointer is dereferenced if a request times out before a
REP is received.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:23 -08:00
Roland Dreier
6226bb5701 IB/mthca: Update firmware versions
Update known firmware versions in driver's table to the latest releases.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:22 -08:00
Eli Cohen
651eaac928 IB/mthca: Optimize large messages on Sinai HCAs
Sinai (one-port PCI Express) HCAs get improved throughput for messages
bigger than 80 KB in DDR mode if memory keys are formatted in a
specific way.  The enhancement only works if the memory key table is
smaller than 2^24 entries.  For larger tables, the enhancement is off
and a warning is printed (to avoid silent performance loss).

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Michael Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:22 -08:00
Dotan Barak
27d5630064 IB/uverbs: Fix query QP return of sq_sig_all
The old code didn't convert from the kernel's enum correctly.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:21 -08:00
Dotan Barak
4546d31d84 IB: Fix modify QP checking of "current QP state" attribute
According to the IB spec version 1.2, section 11.2.4.2, the current
table has a couple of mistakes where it allows the current QP state
(IB_QP_CUR_STATE) attribute.  For the transitions:

  RTS -> RTS: IB_QP_CUR_STATE should be allowed for all transports
  SQD -> SQD: IB_QP_CUR_STATE should never be allowed

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:20 -08:00
Michael S. Tsirkin
9acf6a8570 IPoIB: Fix multicast race between canceling and completing
ipoib_mcast_stop_thread currently tests mcast->query and if it is
NULL, does not perform wait_for_completion on the mcast and frees the
mcast object directly.

However, since both operations are done without locking, it is
possible that ipoib_mcast_join_complete is in progress on this mcast
object and has set mcast->query to NULL already.

Solve this by:
- taking priv->lock before we change mcast->query in ipoib_mcast_join_complete,
  and keeping it until we no longer need the mcast object
- taking priv->lock around mcast->query test in ipoib_mcast_stop_thread

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:20 -08:00
Eli Cohen
54d07e2a1e IPoIB: Clean up if posting receives fails
If posting receives in ipoib_ib_dev_open() fails, call
ipoib_ib_dev_stop() to move the device's QP back to the RESET state so
that we can try again later.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:19 -08:00
Ishai Rabinovitz
8d3ef29d6b IB/mthca: Use an enum for HCA page size
Use a named enum for the HCA's internal page size, rather than having
magic values of 4096 and shifts by 12 all over the code.  Also, fix
one minor bug in EQ handling: only one HCA page is mapped to the HCA
during initialization, but a full kernel page is unmapped during
cleanup.  This might cause problems when PAGE_SIZE != 4096.

Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:19 -08:00
Dotan Barak
67e7377661 IB/mthca: Check alternate P_Key index when setting alternate path
Check that the alternate P_Key index is in range when setting the
alternate path for a QP.  Also make a cosmetic touch up to the debug
message printed when the main P_Key index is out of range.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:18 -08:00
Dotan Barak
7667abd152 IB/mthca: Add support for send work request fence flag
Add support for IB_SEND_FENCE flag in post_send methods.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:18 -08:00
Eli Cohen
7343b231f2 IPoIB: Close race in setting mcast->ah
ipoib_mcast_send() tests mcast->ah twice.  If this value is changed
between these two points, we leak an skb.  However,
ipoib_mcast_join_finish() sets mcast->ah with no locking, so it could
race against ipoib_mcast_send().

As a solution, take priv->lock around assignment to mcast->ah thus
making sure ipoib_mcast_send() (which also takes priv->lock) is not in
flight.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:18 -08:00
Jack Morgenstein
1d89b1ae6c IB/mthca: Implement query_ah method
Implement query_ah (except for AVs which are in HCA memory).  This is
needed to implement RMPP duplicate session detection on sending side
(extraction of DGID/DLID and GRH flag from address handle).

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:17 -08:00
Eli Cohen
14abdffcc0 IB/mthca: Write FW commands through doorbell page
This patch is checks whether the HCA supports posting FW commands
through a doorbell page (user access region 0, or "UAR0").  If this is
supported, the driver maps UAR0 and uses it for FW commands. This can
be controlled by the value of a writable module parameter
fw_cmd_doorbell.  When the parameter is 0, the commands are posted
through HCR using the old method; otherwise if HCA is capable commands
go through UAR0.

This use of UAR0 to post commands eliminates the need for polling the
"go" bit prior to posting a new command. Since reading from a PCI
device is much more expensive then issuing a posted write, it is
expected that issuing FW commands this way will provide better CPU
utilization.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:17 -08:00
Dotan Barak
ea88fd16d6 IB/uverbs: Return actual capacity from create SRQ operation
Pass actual capacity of created SRQ back to userspace, so that
userspace can report accurate capacities.  This requires an ABI bump,
to change struct ib_uverbs_create_srq_resp.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:16 -08:00
Dotan Barak
abb6e9ba17 IB/mthca: Return actual capacity from create_srq
Have mthca's create_srq method return the actual capacity of the SRQ
that gets created.  Also update comments in <rdma/ib_verbs.h> to
clarify that this is what is expected from ib_create_srq().

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:16 -08:00
Michael S. Tsirkin
44af79f952 IPoIB: clarify to_ipoib_neigh()
Cosmetic change: make alignment explicit in to_ipoib_neigh.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:16 -08:00
Roland Dreier
00df1b2c8b IB/mthca: Bump driver version and release date
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:15 -08:00
Eli Cohen
8ebe5077e3 IB/mthca: Support for query QP and SRQ
Implement the query_qp and query_srq methods in mthca.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:15 -08:00
Dotan Barak
8bdb0e8632 IB/uverbs: Support for query SRQ from userspace
Add support to uverbs to handle querying userspace SRQs (shared
receive queues), including adding an ABI for marshalling requests and
responses.  The kernel midlayer already has the underlying
ib_query_srq() function.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:14 -08:00
Dotan Barak
7ccc9a24e0 IB/uverbs: Support for query QP from userspace
Add support to uverbs to handle querying userspace QPs (queue pairs),
including adding an ABI for marshalling requests and responses.  The
kernel midlayer already has the underlying ib_query_qp() function.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:14 -08:00
Roland Dreier
a74cd4af0b IB: Whitespace cleanups
Remove trailing whitespace and fix indentation that with spaces
instead of tabs.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:13 -08:00
Roland Dreier
d844183d9c IB/mthca: Convert to use ib_modify_qp_is_ok()
Use ib_modify_qp_is_ok() in mthca, and delete the big table of
attributes for queue pair state transitions.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:13 -08:00
Roland Dreier
8a51866f08 IB: Add ib_modify_qp_is_ok() library function
The in-kernel mthca driver contains a table of which attributes are
valid for each queue pair state transition.  It turns out that both
other IB drivers -- ipath and ehca -- which are being prepared for
merging have copied this table, errors and all.

To forestall this code duplication, move this table and the code to
check parameters against it into a midlayer library function,
ib_modify_qp_is_ok().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:12 -08:00
Roland Dreier
3fa1fa3e80 IB/mthca: Generate SQ drained events when requested
Add low-level driver support to ib_mthca so that consumers can request
a "send queue drained" event be generated when a transiton to the SQD
state completes.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:12 -08:00
Ralph Campbell
5e9f71a16c IB/mad: Simplify SMI by eliminating smi_check_local_dr_smp()
The call to ib_get_agent_port() shouldn't be possible to fail when
smi_check_local_dr_smp() is called from ib_mad_recv_done_handler().
When it is called from handle_outgoing_dr_smp(), the device and
port_num come from mad_agent_priv so I assume the call to
ib_get_agent_port() shouldn't fail either.  In either case,
smi_check_local_smp() only uses the mad_agent pointer to check that
mad_agent->device->process_mad is not NULL.  The device pointer would
have to be the same as the one passed to smi_check_local_dr_smp()
since that pointer is used later instead of the one checked in
smi_check_local_smp().

Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:11 -08:00
Ralph Campbell
5f0b67e0d5 IB/mad: Remove redundant check from smi_check_local_dr_smp()
smi_check_local_dr_smp() is called only from two places in core/mad.c
It returns 0 or 1.  In smi_check_local_dr_smp(), it checks for
a directed route SMP but this function is only called when the SMP
is a directed route so this is a NOP.

Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:11 -08:00
Or Gerlitz
d36f34aadf IB: Enable FMR pool user to set page size
This patch allows the consumer to set the page size of "pages" mapped
by the pool FMRs, which is a feature already existing in the base
verbs API.  On the cosmetic side it changes ib_fmr_attr.page_size field
to be named page_shift.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:10 -08:00
Roland Dreier
6dfc3901b0 IB/mthca: Add modify_device method to set node description
Add a modify_device method to mthca, which implements setting the node
description.  This makes the writable "node_desc" sysfs attribute work
for Mellanox HCAs.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:10 -08:00
Roland Dreier
c5bcbbb9fe IB: Allow userspace to set node description
Expose a writable "node_desc" sysfs attribute for InfiniBand devices.
This allows userspace to update the node description with information
such as the node's hostname, so that IB network management software
can tie its view to the real world.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:09 -08:00
Roland Dreier
2fa5e2ebbe IB/mthca: Whitespace cleanups
Remove trailing whitespace and fix indentation that with spaces
instead of tabs.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:09 -08:00
Roland Dreier
4885bf64bc IB/mthca: Add device-specific support for resizing CQs
Add low-level driver support for resizing CQs (both kernel and
userspace) to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:08 -08:00
Roland Dreier
33b9b3ee97 IB: Add userspace support for resizing CQs
Add support to uverbs to handle resizing userspace CQs (completion
queues), including adding an ABI for marshalling requests and
responses.  The kernel midlayer already has ib_resize_cq().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:07 -08:00
Roland Dreier
399d792129 IB/mthca: Get rid of might_sleep() annotations
The might_sleep() annotations in mthca are silly -- they all occur
shortly before calls that will end up in core functions like kmalloc()
that will print the same warning in an unsafe context anyway.  In
fact, beyond cluttering the source, we're actually bloating text with
CONFIG_DEBUG_SPINLOCK_SLEEP and/or CONFIG_PREEMPT_VOLUNTARY set.

With both options set, getting rid of the might_sleep()s saves a lot:
add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-171 (-171)
function                                     old     new   delta
mthca_pd_alloc                               132     109     -23
mthca_init_cq                                969     946     -23
mthca_mr_alloc                               592     568     -24
mthca_pd_free                                 67      42     -25
mthca_free_mr                                219     194     -25
mthca_free_cq                                570     545     -25
mthca_fmr_alloc                              742     716     -26

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:07 -08:00
Roland Dreier
d9b98b0f11 IB/mthca: Make functions that never fail return void
The function mthca_free_err_wqe() can never fail, so get rid of its
return value.  That means handle_error_cqe() doesn't have to check
what mthca_free_err_wqe() returns, which means it can't fail either
and doesn't have to return anything either.  All this results in
simpler source code and a slight object code improvement:

add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10 (-10)
function                                     old     new   delta
mthca_free_err_wqe                            83      81      -2
mthca_poll_cq                               1758    1750      -8

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20 10:08:07 -08:00
Roland Dreier
1285b3a0b0 IB/srp: Don't send task management commands after target removal
Just fail abort and reset requests that come in after we've already
decided to remove a target.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-03 17:50:16 -08:00