After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Pull trivial tree from Jiri Kosina:
"The usual trivial updates all over the tree -- mostly typo fixes and
documentation updates"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
doc: Documentation/cputopology.txt fix typo
treewide: Convert retrun typos to return
Fix comment typo for init_cma_reserved_pageblock
Documentation/trace: Correcting and extending tracepoint documentation
mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
power: Documentation: Update s2ram link
doc: fix a typo in Documentation/00-INDEX
Documentation/printk-formats.txt: No casts needed for u64/s64
doc: Fix typo "is is" in Documentations
treewide: Fix printks with 0x%#
zram: doc fixes
Documentation/kmemcheck: update kmemcheck documentation
doc: documentation/hwspinlock.txt fix typo
PM / Hibernate: add section for resume options
doc: filesystems : Fix typo in Documentations/filesystems
scsi/megaraid fixed several typos in comments
ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
page_isolation: Fix a comment typo in test_pages_isolated()
doc: fix a typo about irq affinity
...
Fix:
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c: In function 'ocrdma_build_fr':
>> drivers/infiniband/hw/ocrdma/ocrdma_verbs.c:1832:7: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
mr = (struct ocrdma_mr *)qp->dev->stag_arr[(hdr->lkey >> 8) &
^
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c: In function 'ocrdma_alloc_frmr':
>> drivers/infiniband/hw/ocrdma/ocrdma_verbs.c:2661:64: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = (u64) mr;
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Commit 36a8f01cd2 ("IB/qib: Add congestion control agent
implementation") caused statements to leak pass the header guard.
Fix this.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
In UMC case, driver needs to fill PVID in the address vector
template for UD traffic.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add ABI versioning support between driver and userspace library.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
While posting inline DPP data, we are not considering multiple sges.
Fix this.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1) Increase STAG Array size.
2) Max inline data size should be set to the same value
used during QP creation
3) Set max_sge_rd to zero since we dont support RD transport in our adapters.
4) Max cqes reported in ibv_devinfo should be from QUERY_CONFIG.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Create_CQ verb doesn't provide a PD pointer. So, until now we are
creating all (both userspace and kernel) CQ DB regions from PD0. This
will result in mmapping PD0 to applications. A rogue userspace
application can mess things up.
Also more serious issues is even the be2net NIC uses PD0.
This patch addresses this problem by:
1) Create a PD page for every userspace application when the
alloc_ucontext is called. This will be destroyed in
dealloc_ucontext.
2) All CQs for that context will use the PD allocated in ucontext.
3) The first create_PD call from application will result in returning
the PD address from its ucontext (no new PD will be created).
4) For subsecquent create_pd calls from application, we create new PDs for
the application.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1) Fixed setting FR_MR bit for FRWR stag allocation
2) Access rights are passsed during FRWR stage and not during STAT allocation stage
3) FRWR WQE structure cleanup
4) Add QP level signaled bit.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1) All RQ doorbells are handled by ERX2 and doorbell->num_posted
offset is constant to bit offset 24 for ERX2 irrspective of Q id.
2) Fixed RESET to INIT state change (from ERR->RST->INIT->RTR case).
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
There are cases like SRIOV where can get only one MSI-X vector
allocated for RoCE. In that case we need to use the vector for both
data plane and control plane. We need to use EQ create version V2.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Also get the max_srq value from query_config mailbox response.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1) Fix ocrdma_get_num_posted_shift for upto 128 QPs.
2) Create for min of dev->max_wqe and requested wqe in create_qp.
3) As part of creating ird queue, populate with basic header templates.
4) Make sure all the DB memory allocated to userspace are page aligned.
5) Fix issue in checking the mmap local cache.
6) Some code cleanup.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Implement ib_create_flow() and ib_destroy_flow().
Translate the verbs structures provided by the user to HW structures
and call the MLX4_QP_FLOW_STEERING_ATTACH/DETACH firmware commands.
On the ATTACH command completion, the firmware provides a 64-bit
registration ID, which is placed into struct mlx4_ib_flow that wraps
the instance of struct ib_flow which is retuned to caller. Later,
this reg ID is used for detaching that flow from the firmware.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Don't emit OOM warnings when k.alloc calls fail when
there there is a v.alloc immediately afterwards.
Converted a kmalloc/vmalloc with memset to kzalloc/vzalloc.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Lustre uses a advertised max MR size of ~0ULL to indicate it should
use a dma_mr. Hence advertise max MR size as ~0ULL.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When polling, we do a GTS update if the accumulated cidx_inc == the CQ
depth / 16. However, if the CQ is large enough, Cq depth / 16 exceeds
the size of the field in the GTS word. So we also need to update if
cidx_inc hits CIDXINC_MASK to avoid overflowing the field.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
accept_cr() failed to set the arp error handler on a reused skb. This
results in a kernel crash if the arp does indeed time out.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When determining how many WRs are completed with a signaled CQE,
correctly deal with queue wraps.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This patch makes following fixes in QP flush logic:
- correctly flushes unsignaled WRs followed by a signaled WR
- supports for flushing a CQ bound to multiple QPs
- resets cidx_flush if a active queue starts getting HW CQEs again
- marks WQ in error when we leave RTS. This was only being done for
user queues, but we need it for kernel queues too so that
post_send/post_recv will start returning the appropriate error
synchronously
- eats unsignaled read resp CQEs. HW always inserts CQEs so we must
silently discard them if the read work request was unsignaled.
- handles QP flushes with pending SW CQEs. The flush and out of order
completion logic has a bug where if out of order completions are
flushed but not yet polled by the consumer and the qp is then
flushed then we end up inserting duplicate completions.
- c4iw_flush_sq() should only flush wrs that have not already been
flushed. Since we already track where in the SQ we've flushed via
sq.cidx_flush, just start at that point and flush any remaining.
This bug only caused a problem in the presence of unsignaled work
requests.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
[ Fixed sparse warning due to htonl/ntohl confusion. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
Move QP to TERMINATE instead to allow the peer to get the TERM
message. This bug wasn't detectable until newer FW that moves
connections out of RDMA mode as soon as an error is detected.
QP can exit RTS before the last AE arrives. This was introduced by
changes in the FW to kick connections out of RDMA mode as soon as an
error is detected. A side effect of this is that the driver can move
the QP out of RTS before the AE causing the connection to get kicked
out of RDMA mode is processed. Fix for this is to always post async
errors even if the QP is out of RTS.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add new cpl messages, cpl_act_open_req6 and cpl_t5_act_open_req6, for
initiating active open connections.
Use LLD api cxgb4_create_server and cxgb4_create_server6 for
initiating passive open connections. Similarly use cxgb4_remove_server
to remove the passive open connections in place of listen_stop.
Add support for iWARP over VLAN device and enable IPv6 support on VLAN device.
Make use of import_ep in c4iw_reconnect.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
[ Fix build when IPv6 is disabled and make sure iw_cxgb4 is not built-in
when ipv6 is a module. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device drivers should use
pci_dev->msi_cap/msix_cap to determine whether a device supports
MSI/MSI-X instead of using pci_find_capability(pci_dev,
PCI_CAP_ID_MSI/MSIX). Access to PCIe device config space again will
consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
struct pci_driver qib_driver is only used in qib_init.c. Remove it
from qib.h and make it static in qib_init.c.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1. The code accepts chunks of messages, and splits the chunk into
packets when converting packets into sdma queue entries. Adjacent
packets will use user buffer pages smartly to avoid pinning the
same page multiple times.
2. Instead of discarding all the work when SDMA queue is full, the
work is saved in a pending queue. Whenever there are enough SDMA
queue free entries, pending queue is directly put onto SDMA queue.
3. An interrupt handler is used to progress this pending queue.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
[ Fixed up sparse warnings. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
Modify the type of local_addr and remote_addr fields in struct
iw_cm_id from struct sockaddr_in to struct sockaddr_storage to hold
IPv6 and IPv4 addresses uniformly.
Change the references of local_addr and remote_addr in cxgb4, cxgb3,
nes and amso drivers to match this. However to be able to actully run
traffic over IPv6, low-level drivers have to add code to support this.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
[ Fix unused variable warnings when INFINIBAND_NES_DEBUG not set.
- Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
1) In post recv, don't ring the DB doorbell if the QP is in RTR state.
Cache the DB calls, until the QP is moved to RTS state.
2) Add max_rd_sge support to dev->attr.
3) Code cleanup in alloc_pd path.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1) Remove __packed for structures.
2) Align and pad all ABI structure to 64 bit boundaries
instead of using __packed.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Remove QP state machine in ocrdma low-level driver and use on the core
IB stack's instead.
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
In the sq_overhead() function, if qp_typ is equal to IB_QPT_RC, size
will be used uninitialized.
Signed-off-by: Andi Shyti <andi@etezian.org>
Acked-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
We don't set "resp.reserved". Since it's at the end of the struct
that means we don't have to copy it to the user.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Fix to return a negative error code from the error handling case
instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Roland Dreier <roland@purestorage.com>
When creating tunnel QPs for special QP tunneling, look for the
default pkey in the slave's virtual pkey table. If it is present, use
the real pkey index where the default pkey is located.
If the default pkey is not found in the pkey table, use the real pkey
index which is stored at index 0 in the slave's virtual pkey table
(this is the current behavior).
This change is required to support cloud computing, where the
paravirtualized index of the default pkey is moved to index 1 or
higher. The pkey at paravirtualized index 0 is used for the default
IPoIB interface created by the VF.
Its possible for the pkey value at paravirtualized index 0 to be
invalid (zero) at VF probe time (pkey index 0 is mapped to real pkey
index 127, which contains pkey = 0).
At some point after the VF probe, the cloud computing interface at the
hypervisor maps virtual index 0 for the VF to the pkey index
containing the pkey that IPoIB will use in its operation. However,
when the tunnel QP is created, the pkey at the slave's virtual index 0
is still mapped to the invalid pkey index, so tunnel QP creation
fails.
This commit causes the hypervisor to search for the default pkey in
the slave's pkey table -- and this pkey is present in the table (at
index > 0) at tunnel QP creation time, so that the tunnel QP creation
will succeed.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This reverts commit bca1935ccd, which removes variables
nes_tcp_state_str and nes_iwarp_state_str, assuming that they aren't
defined. However, they are defined within a #ifdef NES_DEBUG statement,
which if enabled causes "defined but not used" compiler warning, when
the variables are removed.
Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Commit 0b3ddf380c ("Log all SDMA errors unconditionally") missed
part of the patch.
This also corrects a format warning when dma_addr_t is 32 bits
on a 64 bit system.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
The "uresp.reserved" field isn't initialized on this path so it could
leak uninitialized stack information to the user.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
We pass a few bytes of uninitialized stack memory to the user here.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
A grab bag of places which don't properly initialize stack data. I
removed one place which cleared ".rsvd" because it's not needed now
that I have added a memset() earlier in the function.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
"uresp.ma_sync_key" doesn't get set on this path so we leak 8 bytes of data.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
