Commit Graph

1980 Commits

Author SHA1 Message Date
Stephen Rothwell
3750f60557 IB/ehca: Fix printk format warnings from u64 type change
Commit fe333321 ("powerpc: Change u64/s64 to a long long integer
type") changed u64 from unsigned long to unsigned long long, which
means that printk formats for printing u64 values should use "ll"
instead of "l" to avoid warnings.  Fix all the places affected by this
in ehca.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-16 14:55:28 -08:00
Linus Torvalds
ccbf04f24c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/iser: Add dependency on INFINIBAND_ADDR_TRANS
  IPoIB: Do not join broadcast group if interface is brought down
  RDMA/nes: Fix for NIPQUAD removal
  IPoIB: Fix loss of connectivity after bonding failover on both sides
  IB/mlx4: Don't register IB device for adapters with no IB ports
  mlx4_core: Fix warning from min()
  IB/ehca: spin_lock_irqsave() takes an unsigned long
2009-01-13 08:19:42 -08:00
Roland Dreier
8c9ea7fe96 Merge branches 'ehca', 'ipoib', 'iser', 'mlx4' and 'nes' into for-next 2009-01-12 19:37:31 -08:00
Randy Dunlap
f5eb3b7600 IB/iser: Add dependency on INFINIBAND_ADDR_TRANS
Fix ib_iser build to depend on INFINIBAND_ADDR_TRANS; if INET=y but
IPV6=n, then the RDMA CM is not built but INFINIBAND_ISER can be
enabled, leading to:

    ERROR: "rdma_destroy_id" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_connect" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_destroy_qp" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_create_id" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_create_qp" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_resolve_route" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_disconnect" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
    ERROR: "rdma_resolve_addr" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
2009-01-12 19:30:41 -08:00
Yossi Etigin
50df48f59d IPoIB: Do not join broadcast group if interface is brought down
Because the ipoib_workqueue is not flushed when ipoib interface is
brought down, ipoib_mcast_join() may trigger a join to the broadcast
group after priv->broadcast was set to NULL (during cleanup).  This
will cause the system to be a member of the broadcast group when
interface is down.  As a side effect, this breaks the optimization of
setting the Q_key only when joining the broadcast group.

Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-12 19:28:42 -08:00
Harvey Harrison
03080e5cbe RDMA/nes: Fix for NIPQUAD removal
Commit 63779436 ("drivers: replace NIPQUAD()") accidentally replaced
some HIPQUAD()s, causing IP addresses to be printed in reverse order.
Add temporary local vars until the byteswapping can be pushed further
up the stack.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-10 21:45:42 -08:00
Yossi Etigin
a50df398cd IPoIB: Fix loss of connectivity after bonding failover on both sides
Fix bonding failover in the case both peers failover and the
gratuitous ARP is lost.  In that case, the sender side will create an
ipoib_neigh and issue a path request with the old GID first.  When
skb->dst->neighbour->ha changes due to ARP refresh, this ipoib_neigh
will not be added to the path->list of the path of the new GID,
because the ipoib_neigh already exists.  It will not have an AH
either, because of sender-side failover.  Therefore, it will not get
an AH when the path is resolved.

The solution here is to compare GIDs in ipoib_start_xmit() even if
neigh->ah is invalid.  Comparing with an uninitialized value of
neigh->dgid should be fine, since a spurious match is harmless (and
astronomically unlikely too).

Signed-off-by: Moni Shoua <monis@voltaire.com>
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-09 14:05:11 -08:00
Roland Dreier
22e7ef9c08 IB/mlx4: Don't register IB device for adapters with no IB ports
If the mlx4_ib driver finds an adapter that has only ethernet ports, the
current code will register an IB device with 0 ports.  Nothing useful or
sensible can be done with such a device, so just skip registering it.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-09 13:22:29 -08:00
Coly Li
73ac36ea14 fix similar typos to successfull
When I review ocfs2 code, find there are 2 typos to "successfull".  After
doing grep "successfull " in kernel tree, 22 typos found totally -- great
minds always think alike :)

This patch fixes all the similar typos. Thanks for Randy's ack and comments.

Signed-off-by: Coly Li <coyli@suse.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:15 -08:00
Linus Torvalds
57c44c5f6f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits)
  trivial: chack -> check typo fix in main Makefile
  trivial: Add a space (and a comma) to a printk in 8250 driver
  trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx
  trivial: Fix misspelling of "firmware" in powerpc Makefile
  trivial: Fix misspelling of "firmware" in usb.c
  trivial: Fix misspelling of "firmware" in qla1280.c
  trivial: Fix misspelling of "firmware" in a100u2w.c
  trivial: Fix misspelling of "firmware" in megaraid.c
  trivial: Fix misspelling of "firmware" in ql4_mbx.c
  trivial: Fix misspelling of "firmware" in acpi_memhotplug.c
  trivial: Fix misspelling of "firmware" in ipw2100.c
  trivial: Fix misspelling of "firmware" in atmel.c
  trivial: Fix misspelled firmware in Kconfig
  trivial: fix an -> a typos in documentation and comments
  trivial: fix then -> than typos in comments and documentation
  trivial: update Jesper Juhl CREDITS entry with new email
  trivial: fix singal -> signal typo
  trivial: Fix incorrect use of "loose" in event.c
  trivial: printk: fix indentation of new_text_line declaration
  trivial: rtc-stk17ta8: fix sparse warning
  ...
2009-01-07 11:31:52 -08:00
Stephen Rothwell
7ddccb234c IB/ehca: spin_lock_irqsave() takes an unsigned long
The flags argument to spin_lock_irqsave() should really be unsigned
long.  This will also help prevent some warnings when we change u64 to
unsigned long long.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-07 11:24:36 -08:00
Kay Sievers
d927e38c6c infiniband: struct device - replace bus_id with dev_name(), dev_set_name()
Acked-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06 10:44:39 -08:00
Frederik Schwarzer
025dfdafe7 trivial: fix then -> than typos in comments and documentation
- (better, more, bigger ...) then -> (...) than

Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-06 11:28:06 +01:00
Al Viro
56ff5efad9 zero i_uid/i_gid on inode allocation
... and don't bother in callers.  Don't bother with zeroing i_blocks,
while we are at it - it's already been zeroed.

i_mode is not worth the effort; it has no common default value.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05 11:54:28 -05:00
Rusty Russell
2ca1a61583 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	arch/x86/kernel/io_apic.c
2008-12-31 23:05:57 +10:30
Linus Torvalds
6094c85a93 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mlx4: Fix reading SL field out of cqe->sl_vid
  RDMA/addr: Fix build breakage when IPv6 is disabled
2008-12-30 17:45:28 -08:00
Roland Dreier
ee48c3d7d3 Merge branches 'cma' and 'mlx4' into for-linus 2008-12-30 15:36:58 -08:00
Roland Dreier
f781a22fa2 IB/mlx4: Fix reading SL field out of cqe->sl_vid
Commit f780a9f1 ("mlx4_core: Add ethernet fields to CQE struct")
introduced a bug in how wc->sl is set in mlx4_ib_poll_one() -- since
cqe->sl_vid is a big-endian value, the shift must be done after
converting to host endianness.

This bug was found using sparse endianness checking.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-30 15:30:26 -08:00
Roland Dreier
2c4ab6243f RDMA/addr: Fix build breakage when IPv6 is disabled
Commit 38617c64 ("RDMA/addr: Add support for translating IPv6
addresses") broke the build when CONFIG_IPV6=n, because the ib_addr
module unconditionally attempted to call ipv6_chk_addr() and other
IPv6 functions that are not defined when IPv6 is disabled.  Fix this
by only building IPv6 support if CONFIG_IPV6 is turned on, and
add a Kconfig dependency to prevent the ib_addr code from being built
in when IPv6 is built modular.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-29 23:37:14 -08:00
Rusty Russell
cbe31f02f5 cpumask: use new cpumask API in drivers/infiniband/hw/ipath
Impact: cleanup

We're moving from handing around cpumask_t's to handing around struct
cpumask *'s.  cpus_*, cpumask_t and cpu_*_map are deprecated: convert
to cpumask_*, cpu_*_mask.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ralph Campbell <infinipath@qlogic.com>
2008-12-30 09:05:18 +10:30
Rusty Russell
b29179c3d3 cpumask: use new cpumask API in drivers/infiniband/hw/ehca
Impact: cleanup

We're moving from handing around cpumask_t's to handing around struct
cpumask *'s.  cpus_*, cpumask_t and cpu_*_map are deprecated: convert
to cpumask_*, cpu_*_mask.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Cc: Christoph Raisch <raisch@de.ibm.com>
2008-12-30 09:05:18 +10:30
Rusty Russell
259c4ddd00 cpumask: use for_each_online_cpu() in drivers/infiniband/hw/ehca/ehca_irq.c
Impact: cleanup

In future, accessing cpu numbers beyond nr_cpu_ids (the runtime limit)
will be undefined.  We can avoid future problems by using
for_each_online_cpu() here.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Cc: Christoph Raisch <raisch@de.ibm.com>
2008-12-30 09:05:17 +10:30
Mike Christie
2ff79d52d5 [SCSI] libiscsi: pass opcode into alloc_pdu callout
We do not need to allocate a itt for data_out, so this
passes the opcode to the alloc_pdu callout.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29 11:24:23 -06:00
Mike Christie
0f9c7449ce [SCSI] iser: convert iser to new alloc_pdu api
This just converts iser to new alloc_pdu api. It still
preallocates the pdu, so there is no difference.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29 11:24:20 -06:00
Linus Torvalds
0191b625ca Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
  net: Allow dependancies of FDDI & Tokenring to be modular.
  igb: Fix build warning when DCA is disabled.
  net: Fix warning fallout from recent NAPI interface changes.
  gro: Fix potential use after free
  sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
  sfc: When disabling the NIC, close the device rather than unregistering it
  sfc: SFT9001: Add cable diagnostics
  sfc: Add support for multiple PHY self-tests
  sfc: Merge top-level functions for self-tests
  sfc: Clean up PHY mode management in loopback self-test
  sfc: Fix unreliable link detection in some loopback modes
  sfc: Generate unique names for per-NIC workqueues
  802.3ad: use standard ethhdr instead of ad_header
  802.3ad: generalize out mac address initializer
  802.3ad: initialize ports LACPDU from const initializer
  802.3ad: remove typedef around ad_system
  802.3ad: turn ports is_individual into a bool
  802.3ad: turn ports is_enabled into a bool
  802.3ad: make ntt bool
  ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
  ...

Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).
2008-12-28 12:49:40 -08:00
David S. Miller
2d5451d261 net: Fix warning fallout from recent NAPI interface changes.
When we removed the network device argument from several
NAPI interfaces in 908a7a16b8
("net: Remove unused netdev arg from some NAPI interfaces.")
several drivers now started getting unused variable warnings.

This fixes those up.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 15:10:00 -08:00
Roland Dreier
2a0d8366dd Merge branches 'cma', 'ehca', 'ipath', 'iser', 'mlx4' and 'nes' into for-next 2008-12-24 20:35:42 -08:00
Jack Morgenstein
7798dbf40a IB/mlx4: Set ownership bit correctly when copying CQEs during CQ resize
When resizing a CQ, when copying over unpolled CQEs from the old CQE
buffer to the new buffer, the ownership bit must be set appropriately
for the new buffer, or the ownership bit in the new buffer gets
corrupted.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24 20:32:42 -08:00
Faisal Latif
e189062a8c RDMA/nes: Remove tx_free_list
There is no lock protecting tx_free_list thus causing a system crash
when skb_dequeue() is called and the list is empty.  Since it did not give
any performance boost under heavy load, remove it to simplify the code.
Replace get_free_pkt() with dev_alloc_skb() to allocate MAX_CM_BUFFER skb
for connection establishment/teardown as well as MPA request/response.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24 20:30:04 -08:00
Aleksey Senin
1f5175adea RDMA/cma: Add IPv6 support
Handle AF_INET6 cases where required, and use struct sockaddr_storage
wherever an IPv6 address might be stored.

Signed-off-by: Aleksey Senin <aleksey@alst60.(none)>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24 10:16:45 -08:00
Aleksey Senin
38617c64bf RDMA/addr: Add support for translating IPv6 addresses
Add support for translating AF_INET6 addresses to the IB address
translation service.  This requires using struct sockaddr_storage
instead of struct sockaddr wherever an IPv6 address might be stored,
and adding cases to handle IPv6 in addition to IPv4 to the various
translation functions.

Signed-off-by: Aleksey Senin <aleksey@alst60.(none)>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-24 10:16:37 -08:00
Neil Horman
908a7a16b8 net: Remove unused netdev arg from some NAPI interfaces.
When the napi api was changed to separate its 1:1 binding to the net_device
struct, the netif_rx_[prep|schedule|complete] api failed to remove the now
vestigual net_device structure parameter.  This patch cleans up that api by
properly removing it..

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-22 20:43:12 -08:00
Yevgeny Petrilin
b8dd786f94 mlx4_core: Add support for multiple completion event vectors
When using MSI-X mode, create a completion event queue for each CPU.
Report the number of completion EQs in a new struct mlx4_caps member,
num_comp_vectors, and extend the mlx4_cq_alloc() interface with a
vector parameter so that consumers can specify which completion EQ
should be used to report events for the CQ being created.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-22 07:15:03 -08:00
David Disseldorp
bba7ebba3b IB/iser: Avoid recv buffer exhaustion caused by unexpected PDUs
iSCSI/iSER targets may send PDUs without a prior request from the
initiator.  RFC 5046 refers to these PDUs as "unexpected".  NOP-In PDUs
with itt=RESERVED and Asynchronous Message PDUs occupy this category.

The amount of active "unexpected" PDU's an iSER target may have at any
time is governed by the MaxOutstandingUnexpectedPDUs key, which is not
yet supported.

Currently when an iSER target sends an "unexpected" PDU, the
initiators recv buffer consumed by the PDU is not replaced.  If over
initial_post_recv_bufs_num "unexpected" PDUs are received then the
receive queue will run out of receive work requests entirely.

This patch ensures recv buffers consumed by "unexpected" PDUs are
replaced in the next iser_post_receive_control() call.

Signed-off-by: David Disseldorp <ddiss@sgi.com>
Signed-off-by: Ken Sandars <ksandars@sgi.com>
Acked-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-21 13:56:50 -08:00
Julia Lawall
139cdab0a2 IB/ehca: Remove redundant test of vpage
vpage is checked not to be NULL just after it is initialized at the
beginning of each loop iteration.

A simplified version of the semantic patch that makes this change is
as follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
expression E;
position p1,p2;
@@

if (x@p1 == NULL || ...) { ... when forall
   return ...; }
... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
(
x@p2 == NULL
|
x@p2 != NULL
)

// another path to the test that is not through p1?
@s exists@
local idexpression r.x;
position r.p1,r.p2;
@@

... when != x@p1
(
x@p2 == NULL
|
x@p2 != NULL
)

@fix depends on !s@
position r.p1,r.p2;
expression x,E;
statement S1,S2;
@@

(
- if ((x@p2 != NULL) || ...)
  S1
|
- if ((x@p2 == NULL) && ...) S1
|
- BUG_ON(x@p2 == NULL);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-21 13:29:13 -08:00
Stefan Roscher
1c721940dd IB/ehca: Replace modulus operations in flush error completion path
With the latest flush error completion patch we introduced modulus
operation to calculate the next index within a qmap.  Based on
comments from other mailing lists we decided to optimize this
operation by using an addition and an if-statement instead of modulus,
even though this is on the error path.

Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:25:38 -08:00
Dave Olson
3d0890985a IB/ipath: Add locking for interrupt use of ipath_pd contexts vs free
Fixes timing race resulting in panic.  Not a performance sensitive path.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:14:38 -08:00
Dave Olson
1bf7724e09 IB/ipath: Fix spi_pioindex value
ipath_piobufbase was a single value offset, but is multiple values on
newer chips, so use only the 32 bits for the 2K buffers (4K buffers
are currently used only by the driver).

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:13:19 -08:00
Dave Olson
6114d4cd31 IB/ipath: Only do 1X workaround on rev1 chips
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:13:19 -08:00
Dave Olson
60e845035a IB/ipath: Don't count IB symbol and link errors unless link is UP
Implement the ignoring of ibsymbol errors and linkrecover errors while
the link is at less than INIT (long needed), to get accurate counts.
Particularly an issue when doing non-IBTA DDR negotiation with chips
from vendors that do not support IBTA mode negotiation.  If the driver
is unloaded, and there is a delta, the adjusted counters are written
back to the chip, so they stay adjusted across driver reload.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:13:19 -08:00
Ralph Campbell
890fccb242 IB/ipath: Check return value of dma_map_single()
This fixes an obvious oversight where the return value is not checked
for error.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:13:18 -08:00
Ralph Campbell
fab01fc560 IB/ipath: Fix PSN of send WQEs after an RDMA read resend
The PSN of the first packet after an RDMA read is based on the size of
the RDMA read request. This is calculated correctly for the WQE sent
after the first request message but not on subsequent requests if the
RDMA read is resent.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:13:18 -08:00
Chien Tung
6098d10749 RDMA/nes: Cleanup warnings
Wrap NES_DEBUG and assert macros with do while (0) to avoid ambiguous
else.  No one is using sk_buff * returned from form_cm_frame(), so
drop the return.  drop_packet() should not be incrementing reset
counter on receiving a FIN.

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:41 -08:00
Chien Tung
1ee86555b2 RDMA/nes: Add loopback check to make_cm_node()
Check for loopback connection in make_cm_node().

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:29 -08:00
Faisal Latif
f3181a10e1 RDMA/nes: Check cqp_avail_reqs is empty after locking the list
Between the first empty list check and locking the list, the list can
change.  Check it again after it is locked to make sure the list is
still not empty.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:24 -08:00
Faisal Latif
abb7725676 RDMA/nes: Fix TCP compliance test failures
ANVL testing showed we are not handling all cm_node states during
connection establishment.  Add missing state handlers and fix sequence
number send reset in handle_tcp_options().

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:19 -08:00
Faisal Latif
4a14f6a79f RDMA/nes: Forward packets for a new connection with stale APBVT entry
Under heavy traffic, there is a small windows when an APBVT entry is
not yet removed and a new connection is established.  Packets for the
new connection are dropped until APBVT entry is removed.  This patch
will forward the packets instead of dropping them.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:13 -08:00
Faisal Latif
183ecfa309 RDMA/nes: Avoid race between MPA request and reset event to rdma_cm
In passive open, after indicating MPA request to rdma_cm, an incoming
RST would fire a reset event to rdma_cm causing it to crash, since the
current state is not connected.  The solution is to wait for
nes_accept() or nes_reject() before firing the reset event.  If
nes_accept() or nes_reject() is already done, then the reset event
will be fired when RST is processed.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:08 -08:00
Faisal Latif
879e5bd5a1 RDMA/nes: Lock down connected_nodes list while processing it
While processing connected_nodes list, we would release the lock when
we need to send reset to remote partner.  That created a window where
the list can be modified.  Change this into a two step process: place
nodes that need processing on a local list then process the local list.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 11:00:02 -08:00
Faisal Latif
c5d321e5c9 RDMA/nes: Cleanup cqp_request list usage
Use nes_free_cqp_request() instead of open coding.  Change some
continue to break in nes_cm_timer_tick, because send_entry used to be
a list processed in a loop (so continue went to the next item).  Now
it is a single item, so using break is correct.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05 10:59:53 -08:00