Commit graph

49 commits

Author SHA1 Message Date
Roland Dreier
1d6e658e8e RDMA/cxgb3: Endianness annotation for irs field
t3_rdma_init_wr.irs is a big-endian field, so declare it as __be32.
This fixes one sparse warning.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25 14:15:42 -08:00
Joe Perches
94545e8c51 IB: Spelling fixes in comments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25 14:15:29 -08:00
Steve Wise
457fe7b8a6 RDMA/cxgb3: Support version 5.0 firmware
The 5.0 firmware now supports translating sgls in recv work requests,
so remove the host driver logic currently doing the translation.

Note: this change requires 5.0 firmware.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25 14:15:26 -08:00
Steve Wise
7f049f2f42 RDMA/cxgb3: Hold rtnl_lock() around ethtool get_drvinfo call
Currently the call into cxgb3 to get the driver info is not serialized.
The iw_cxgb3 module needs to hold the rtnl_lock around the ethtool ops
call like dev_ioctl() does.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25 14:15:26 -08:00
Steve Wise
9a7666494b RDMA/cxgb3: Set the max_qp_init_rd_atom attribute in query_device
The device attribute max_qp_init_rd_atom is not getting set in cxgb3's
query_device method.  Version 1.0.4 of librdmacm now validates the
user's requested initiator and responder resources against the max
supported by the device.  Since iw_cxgb3 wasn't setting this attribute
(and it defaulted to 0), all rdma_connect()s fail if there are
initiator resources requested by the app.  Fix this by setting the
correct value in iwch_query_device().

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-11-13 15:27:00 -08:00
Linus Torvalds
ce9d3c9a6a 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: (87 commits)
  mlx4_core: Fix section mismatches
  IPoIB: Allow setting policy to ignore multicast groups
  IB/mthca: Mark error paths as unlikely() in post_srq_recv functions
  IB/ipath: Minor fix to ordering of freeing and zeroing of tid pages.
  IB/ipath: Remove redundant link state checks
  IB/ipath: Fix IB_EVENT_PORT_ERR event
  IB/ipath: Better handling of unexpected GPIO interrupts
  IB/ipath: Maintain active time on all chips
  IB/ipath: Fix QHT7040 serial number check
  IB/ipath: Indicate a couple of chip bugs to userspace
  IB/ipath: iba6110 rev4 no longer needs recv header overrun workaround
  IB/ipath: Use counters in ipath_poll and cleanup interrupts in ipath_close
  IB/ipath: Remove duplicate copy of LMC
  IB/ipath: Add ability to set the LMC via the sysfs debugging interface
  IB/ipath: Optimize completion queue entry insertion and polling
  IB/ipath: Implement IB_EVENT_QP_LAST_WQE_REACHED
  IB/ipath: Generate flush CQE when QP is in error state
  IB/ipath: Remove redundant code
  IB/ipath: Future proof eeprom checksum code (contents reading)
  IB/ipath: UC RDMA WRITE with IMMEDIATE doesn't send the immediate
  ...
2007-10-11 19:43:13 -07:00
Eric W. Biederman
881d966b48 [NET]: Make the device list and device lookups per namespace.
This patch makes most of the generic device layer network
namespace safe.  This patch makes dev_base_head a
network namespace variable, and then it picks up
a few associated variables.  The functions:
dev_getbyhwaddr
dev_getfirsthwbytype
dev_get_by_flags
dev_get_by_name
__dev_get_by_name
dev_get_by_index
__dev_get_by_index
dev_ioctl
dev_ethtool
dev_load
wireless_process_ioctl

were modified to take a network namespace argument, and
deal with it.

vlan_ioctl_set and brioctl_set were modified so their
hooks will receive a network namespace argument.

So basically anthing in the core of the network stack that was
affected to by the change of dev_base was modified to handle
multiple network namespaces.  The rest of the network stack was
simply modified to explicitly use &init_net the initial network
namespace.  This can be fixed when those components of the network
stack are modified to handle multiple network namespaces.

For now the ifindex generator is left global.

Fundametally ifindex numbers are per namespace, or else
we will have corner case problems with migration when
we get that far.

At the same time there are assumptions in the network stack
that the ifindex of a network device won't change.  Making
the ifindex number global seems a good compromise until
the network stack can cope with ifindex changes when
you change namespaces, and the like.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:10 -07:00
Steve Wise
e54664c095 RDMA/cxgb3: Make the iw_cxgb3 module parameters writable
Allow changing parameter values without having to reload the module.
This is safe because these parameters are only looked at when a new
connection is established.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09 19:59:04 -07:00
Divy Le Ray
5fbf816fe7 cxgb3 - Fix dev->priv usage
cxgb3 used netdev_priv() and dev->priv for different purposes.
In 2.6.23, netdev_priv() == dev->priv, cxgb3 needs a fix.
This patch is a partial backport of Dave Miller's changes in the
net-2.6.24 git branch.

Without this fix, cxgb3 crashes on 2.6.23.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-31 07:29:08 -04:00
Steve Wise
699924b1e1 RDMA/cxgb3: Always call low level send function via cxgb3_ofld_send()
This avoids deadlocks.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-08-03 10:45:18 -07:00
Yoann Padioleau
dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
Steve Wise
1b07db7079 RDMA/cxgb3: Remove cm_id reference on listen failures
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-17 18:37:38 -07:00
Jan Engelhardt
06cc85086e IB: Use menuconfig for InfiniBand menu
Change Kconfig objects from "menu, config" into "menuconfig" so
that the user can disable the whole feature without having to
enter the menu first.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
WANG Cong
6abb6ea80b RDMA/cxgb3: Check return of kmalloc() in iwch_register_device()
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
[ Also remove cast from void * return of kmalloc() as suggested by  
  Jesper Juhl <jesper.juhl@gmail.com>. ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Steve Wise
ecc2f0060f RDMA/cxgb3: Don't abort after failures sending the mpa reply
This bug results in an abort request being sent down _after_ the tid
has been released.  If the tid happens to have been reused, then the
subsequent generation of the tid gets incorrectly aborted.

The thread running iwch_accecpt_cr() must not abort a connection if an
error is returned after being awakened.  If any errors did occur while
iwch_accept_cr() is blocked, then the connection has already been
aborted on the thread processing the error.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Steve Wise
96d0e4931e RDMA/cxgb3: Don't post TID_RELEASE message
The LLD does this for us in cxgb3_remove_tid().

Also fixed active open failure cases where we also shouldn't be
releasing the TID.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Steve Wise
6eda48d1e8 RDMA/cxgb3: ctrl-qp init/clear shouldn't set the gen bit
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Steve Wise
1580367e7b RDMA/cxgb3: Don't count neg_adv abort_req_rss messages as real aborts
Negative advice messages should _not_ count toward the 2 abort
requests needed to indicate an abort request.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Steve Wise
fb497d7266 RDMA/cxgb3: TERMINATE WRs can hang the tx ofld queue
Don't set the gen bits nor length bits in the terminate WR.  This is
done by the LLD driver.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Steve Wise
de3d353072 RDMA/cxgb3: Streaming -> RDMA mode transition fixes
Due to a HW issue, our current scheme to transition the connection from
streaming to rdma mode is broken on the passive side.  The firmware
and driver now support a new transition scheme for the passive side:

 - driver posts rdma_init_wr (now including the initial receive seqno)
 - driver posts last streaming message via TX_DATA message (MPA start
   response)
 - uP atomically sends the last streaming message and transitions the
   tcb to rdma mode.
 - driver waits for wr_ack indicating the last streaming message was ACKed.

NOTE: This change also bumps the required firmware version to 4.3.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09 20:12:26 -07:00
Roland Dreier
f7c6a7b5d5 IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules
Export ib_umem_get()/ib_umem_release() and put low-level drivers in
control of when to call ib_umem_get() to pin and DMA map userspace,
rather than always calling it in ib_uverbs_reg_mr() before calling the
low-level driver's reg_user_mr method.

Also move these functions to be in the ib_core module instead of
ib_uverbs, so that driver modules using them do not depend on
ib_uverbs.

This has a number of advantages:
 - It is better design from the standpoint of making generic code a
   library that can be used or overridden by device-specific code as
   the details of specific devices dictate.
 - Drivers that do not need to pin userspace memory regions do not
   need to take the performance hit of calling ib_mem_get().  For
   example, although I have not tried to implement it in this patch,
   the ipath driver should be able to avoid pinning memory and just
   use copy_{to,from}_user() to access userspace memory regions.
 - Buffers that need special mapping treatment can be identified by
   the low-level driver.  For example, it may be possible to solve
   some Altix-specific memory ordering issues with mthca CQs in
   userspace by mapping CQ buffers with extra flags.
 - Drivers that need to pin and DMA map userspace memory for things
   other than memory regions can use ib_umem_get() directly, instead
   of hacks using extra parameters to their reg_phys_mr method.  For
   example, the mlx4 driver that is pending being merged needs to pin
   and DMA map QP and CQ buffers, but it does not need to create a
   memory key for these buffers.  So the cleanest solution is for mlx4
   to call ib_umem_get() in the create_qp and create_cq methods.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-08 18:00:37 -07:00
Roland Dreier
ed23a72778 IB: Return "maybe missed event" hint from ib_req_notify_cq()
The semantics defined by the InfiniBand specification say that
completion events are only generated when a completions is added to a
completion queue (CQ) after completion notification is requested.  In
other words, this means that the following race is possible:

	while (CQ is not empty)
		ib_poll_cq(CQ);
	// new completion is added after while loop is exited
	ib_req_notify_cq(CQ);
	// no event is generated for the existing completion

To close this race, the IB spec recommends doing another poll of the
CQ after requesting notification.

However, it is not always possible to arrange code this way (for
example, we have found that NAPI for IPoIB cannot poll after
requesting notification).  Also, some hardware (eg Mellanox HCAs)
actually will generate an event for completions added before the call
to ib_req_notify_cq() -- which is allowed by the spec, since there's
no way for any upper-layer consumer to know exactly when a completion
was really added -- so the extra poll of the CQ is just a waste.

Motivated by this, we add a new flag "IB_CQ_REPORT_MISSED_EVENTS" for
ib_req_notify_cq() so that it can return a hint about whether the a
completion may have been added before the request for notification.
The return value of ib_req_notify_cq() is extended so:

	 < 0	means an error occurred while requesting notification
	== 0	means notification was requested successfully, and if
		IB_CQ_REPORT_MISSED_EVENTS was passed in, then no
		events were missed and it is safe to wait for another
		event.
	 > 0	is only returned if IB_CQ_REPORT_MISSED_EVENTS was
		passed in.  It means that the consumer must poll the
		CQ again to make sure it is empty to avoid the race
		described above.

We add a flag to enable this behavior rather than turning it on
unconditionally, because checking for missed events may incur
significant overhead for some low-level drivers, and consumers that
don't care about the results of this test shouldn't be forced to pay
for the test.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-06 21:18:11 -07:00
Michael S. Tsirkin
f4fd0b224d IB: Add CQ comp_vector support
Add a num_comp_vectors member to struct ib_device and extend
ib_create_cq() to pass in a comp_vector parameter -- this parallels
the userspace libibverbs API.  Update all hardware drivers to set
num_comp_vectors to 1 and have all ULPs pass 0 for the comp_vector
value.  Pass the value of num_comp_vectors to userspace rather than
hard-coding a value of 1.

We want multiple CQ event vector support (via MSI-X or similar for
adapters that can generate multiple interrupts), but it's not clear
how many vectors we want, or how we want to deal with policy issues
such as how to decide which vector to use or how to set up interrupt
affinity.  This patch is useful for experimenting, since no core
changes will be necessary when updating a driver to support multiple
vectors, and we know that we want to make at least these changes
anyway.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-06 21:18:11 -07:00
Steve Wise
aff9e39d97 RDMA/cxgb3: Support for new abort logic
The HW now posts 2 ABORT_RPL and/or PEER_ABORT_REQ messages.  We need
to handle them by silenty dropping the 1st but mark that we're ready
for the final message.  This plugs some close races between the uP and
HW.  Also update the minimum required firmware version.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-06 21:18:08 -07:00
Steve Wise
60be4b5966 RDMA/cxgb3: Initialize cpu_idx field in cpl_close_listserv_req message
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-30 17:30:28 -07:00
Steve Wise
1860cdf802 RDMA/cxgb3: Fail qp creation if the requested max_inline is too large
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-30 17:30:28 -07:00
Steve Wise
4a97d47ef7 RDMA/cxgb3: Fix TERM codes
Fix TERMINATE layer, type, and ecode values based on
conformance testing.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-30 17:30:28 -07:00
Linus Torvalds
afc2e82c08 Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: (49 commits)
  IB: Set class_dev->dev in core for nice device symlink
  IB/ehca: Implement modify_port
  IB/umad: Clarify documentation of transaction ID
  IPoIB/cm: spin_lock_irqsave() -> spin_lock_irq() replacements
  IB/mad: Change SMI to use enums rather than magic return codes
  IB/umad: Implement GRH handling for sent/received MADs
  IB/ipoib: Use ib_init_ah_from_path to initialize ah_attr
  IB/sa: Set src_path_bits correctly in ib_init_ah_from_path()
  IB/ucm: Simplify ib_ucm_event()
  RDMA/ucma: Simplify ucma_get_event()
  IB/mthca: Simplify CQ cleaning in mthca_free_qp()
  IB/mthca: Fix mthca_write_mtt() on HCAs with hidden memory
  IB/mthca: Update HCA firmware revisions
  IB/ipath: Fix WC format drift between user and kernel space
  IB/ipath: Check that a UD work request's address handle is valid
  IB/ipath: Remove duplicate stuff from ipath_verbs.h
  IB/ipath: Check reserved memory keys
  IB/ipath: Fix unit selection when all CPU affinity bits set
  IB/ipath: Don't allow QPs 0 and 1 to be opened multiple times
  IB/ipath: Disable IB link earlier in shutdown sequence
  ...
2007-04-27 09:39:27 -07:00
Arnaldo Carvalho de Melo
d626f62b11 [SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}
To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-04-25 22:28:23 -07:00
Arnaldo Carvalho de Melo
4305b54135 [SK_BUFF]: Convert skb->end to sk_buff_data_t
Now to convert the last one, skb->data, that will allow many simplifications
and removal of some of the offset helpers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:26:29 -07:00
Arnaldo Carvalho de Melo
badff6d01a [SK_BUFF]: Introduce skb_reset_transport_header(skb)
For the common, open coded 'skb->h.raw = skb->data' operation, so that we can
later turn skb->h.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple cases:

skb->h.raw = skb->data;
skb->h.raw = {skb_push|[__]skb_pull}()

The next ones will handle the slightly more "complex" cases.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:15 -07:00
Joachim Fenkes
1912ffbb88 IB: Set class_dev->dev in core for nice device symlink
All RDMA drivers except ehca set class_dev->dev to their dma_device
value (ehca leaves this unset).  dma_device is the only value that
makes any sense, so move this assignment to core/sysfs.c.  This reduce
the duplicated code in the rest of the drivers and gives ehca a nice
/sys/class/infiniband/ehcaX/device symlink.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-24 21:30:38 -07:00
Steve Wise
1ca19770c5 RDMA/cxgb3: Add set_tcb_rpl_handler
As of commit 6cdbd77e ("cxgb3 - missing CPL hanler and register
setting."), the cxgb3 ethernet NIC driver no longer handles SET_TCB
replies, so we need to do it in the iWARP driver.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-12 10:37:11 -07:00
Steve Wise
ed6ee5178e RDMA/cxgb3: Fix resource leak in cxio_hal_init_ctrl_qp()
This was spotted by the Coverity checker (CID 1554).

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-26 15:54:40 -07:00
Steve Wise
d601347188 RDMA/cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys_mem()
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22 14:40:16 -07:00
Steve Wise
e64518f373 RDMA/cxgb3: Fix MR permission problems
Fix memory region permission problems:

- remove useless and redundant iwch_mem_perms enum.

- create ib_to_tpt_access_rights() for mapping ib access rights
  to T3 TPT permissions.

- create ib_to_mwbind_access_rights() for mapping ib access rights
  to T3 MWBIND WR permissions.

- fix up the mem reg code to utilize the new functions.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:51:02 -08:00
Steve Wise
1f6a849b7c RDMA/cxgb3: Don't reuse skbs that are non-linear or cloned
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:50:57 -08:00
Steve Wise
8cfccf02bb RDMA/cxgb3: Squelch logging AE errors
Only print one AE error for a given connection in the kernel log.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:50:53 -08:00
Steve Wise
adf376b370 RDMA/cxgb3: Stop EP timer when MPA exchange is aborted by peer
Stop the endpoint timer when the MPA exchange is aborted by the peer.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:50:49 -08:00
Steve Wise
2df50da00e RDMA/cxgb3: Move QP to error on destroy if the state is IDLE
Change iwch_destroy_qp() to always move the QP to ERROR and let
iwch_modify_qp() decide what to do.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:50:45 -08:00
Steve Wise
42e3175354 RDMA/cxgb3: Fixes for "normal close" failures
Fixes for "normal close" failures:

- Start normal close timer when moving to CLOSING state.
- Handle ABORTING state in close_con_rpl().
- Stop timer correctly on abort during a normal close.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:50:37 -08:00
David Miller
c3bb1092c8 RDMA/cxgb3: Fix build on sparc64
cxgb3 uses dma_alloc_coherent() et al. thus needs linux/dma-mapping.h
include in order to build reliably.

Noticed on sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 12:45:57 -08:00
Steve Wise
aeb100e246 RDMA/cxgb3: Don't use mm after it's freed in iwch_mmap()
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 11:48:17 -08:00
Steve Wise
7d526e6b2c RDMA/cxgb3: Start ep timer on a MPA reject
If the consumer rejects the connection we end up under-referencing the
endpoint structure.  The fix is to call iwch_ep_disconnect() instead
of the low level disconnect functions so that the endpoint close timer
is started correctly.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06 11:47:05 -08:00
Steve Wise
2f236735fd RDMA/cxgb3: Stop the EP Timer on BAD CLOSE
Stop the ep timer in ec_status() if the status indicates a
bad close.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-23 13:12:48 -08:00
Adrian Bunk
2b540355cd RDMA/cxgb3: cleanups
- don't mark static functions in C files as inline - gcc should know
  best whether inlining makes sense
- never compile the unused cxio_dbg.c
- make the following needlessly global functions static:
  - cxio_hal.c: cxio_hal_clear_qp_ctx()
  - iwch_provider.c: iwch_get_qp()
- remove the following unused global functions:
  - cxio_hal.c: cxio_allocate_stag()
  - cxio_resource.: cxio_hal_get_rhdl()
  - cxio_resource.: cxio_hal_put_rhdl()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-23 13:10:43 -08:00
Steve Wise
c52daa2976 RDMA/cxgb3: Remove Open Grid Computing copyrights in iw_cxgb3 driver
Remove the Open Grid Computing copyright.  It shouldn't be there.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16 13:57:35 -08:00
Steve Wise
a1a750523b RDMA/cxgb3: Fail posts synchronously when in TERMINATE state
For T3B devices, mark user QP in error once we transition
to TERMINATE.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16 13:57:35 -08:00
Steve Wise
b038ced7b3 RDMA/cxgb3: Add driver for Chelsio T3 RNIC
Add an RDMA/iWARP driver for the Chelsio T3 1GbE and 10GbE adapters.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-12 16:16:18 -08:00