| Age | Commit message (Collapse) | Author | Files | Lines |
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The ridiculous dance with uobj_remove_commit() is not needed, the write
path can follow the same flow as ioctl - lock and destroy the HW object
then use the data left over in the uobject to form the response to
userspace.
Two helpers are introduced to make this flow straightforward for the
caller.
Signed-off-by: Jason Gunthorpe <[email protected]>
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The core code will destroy the HW object on behalf of the method, if the
method provides an implementation it must simply copy data from the stub
uobj into the response. Destroy methods cannot touch the HW object.
Signed-off-by: Jason Gunthorpe <[email protected]>
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The proper return code is "-EOPNOTSUPP" when the modify_cq() callback is
not supported, all drivers should generate this and all users should check
for it when detecting not supported functionality.
Signed-off-by: Kamal Heib <[email protected]>
Acked-by: Leon Romanovsky <[email protected]> (for mlx5)
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch avoids that sparse reports the following warning:
drivers/infiniband/hw/cxgb4/qp.c:2269:34: warning: Using plain integer as NULL pointer
Signed-off-by: Bart Van Assche <[email protected]>
Acked-by: Steve Wise <[email protected]>
Acked-by: Raju Rangoju <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch avoids that sparse complains about casts to restricted __be32.
Fixes: a3cdaa69e4ae ("cxgb4: Adds CPL support for Shared Receive Queues")
Signed-off-by: Bart Van Assche <[email protected]>
Acked-by: Steve Wise <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch avoids that the following warning is reported when building with
W=1:
drivers/infiniband/hw/cxgb4/cm.c:1860:5: warning: variable 'status' set but not used [-Wunused-but-set-variable]
u8 status;
^~~~~~
Fixes: 6a0b6174d35a ("rdma/cxgb4: Add support for kernel mode SRQ's")
Signed-off-by: Bart Van Assche <[email protected]>
Acked-by: Steve Wise <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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In rdma cm module, functions which are common between IB and iWarp
are named with cma_.
iWarp specific functions are prefixed with cma_iw.
IB specific functions are perfixed with cma_ib.
However some functions in request processing path didn't follow
cma_ib notion. Prefix them with _ib for better code clarity.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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cma_add_one() initializes the default GID regardless of device type.
listen_id is bound to a device and an IP address, its GID type is
initialized by cma_acquire_dev().
Therefore a valid default GID type is always available, it is not needed
to check port type during cma_acquire_dev().
Initialize gid type of a cm id when the cm_id is created instead of
doing conditional checks during cma_acquire_dev() and trying to
initialize to 0 during _cma_attach_to_dev().
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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In various functions rdma_cm_event is zero initialized on stack using
memset() while holding lock which is not necessary.
Therefore, don't hold the lock while initializing on stack.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Return bool for following internal and inline functions as their
underlying APIs return bool too.
1. cma_zero_addr()
2. cma_loopback_addr()
3. cma_any_addr()
4. ib_addr_any()
5. ib_addr_loopback()
While we are touching cma_loopback_addr(), remove extra white spaces
in it.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Arrange fields of cma_req_info structure for efficiency on
stack and get rid of one bit boolean field.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Constify several pointers such as path_rec, ib_cm_event and listen_id
pointers in several functions.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Following APIs are not supposed to modify addr or dest_addr contents.
Therefore make those function argument const for better code
readability.
1. rdma_resolve_ip()
2. rdma_addr_size()
3. rdma_resolve_addr()
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Currently dst address is first set and later on cleared on either of the
3 error conditions are met.
However none of the APIs or checks are supposed to refer to the
destination address of the cm_id.
Therefore, set the destination address after necessary checks pass which
simplifies the error flow.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Currently rdma_cm_id's resource tracking fields such as owner task and
kern_name and other non resource tracking fields are initialized in
in single function __rdma_create_id().
Therefore, initialize rdma_cm_id's resource type also in same init
function.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This was missed in a few places, and was just using 0.
Also correct the spelling of HNS_ROCE_FLOW_LABEL_MASK
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch mainly uses CMD_CSQ_DESC_NUM instead of magic number in order
to improve readability.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Set for ret was missing in the error path here, resulting in incorrect
error code for modify_qp.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch mainly fills the correct value into the vlan id field of qp
context as well as update the vlan field name according to the latest
hardware user manual.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Only when the IB_QP_AV flag of attr_mask is set is it valid to assign the
related fields of the av into the qp context.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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The rdma core is taking care of return the right error code when the
rdma device callbacks aren't supported.
Signed-off-by: Kamal Heib <[email protected]>
Acked-by: Shiraz Saleem <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Make sure the providers implement the verbs callbacks before calling
them, otherwise return -EOPNOTSUPP.
Signed-off-by: Kamal Heib <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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{create,destroy}_ah aren't mandatory verbs, because not all providers
are implementing them.
Signed-off-by: Kamal Heib <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Make sure to check for "-EOPNOTSUPP" instead of "-ENOSYS" which is the
return code from ib_create_srq() in case that it not supported.
Signed-off-by: Kamal Heib <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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The proper return code is "-EOPNOTSUPP" when the create_srq() callback
is not supported.
Signed-off-by: Kamal Heib <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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In the current implementation, the driver tries to allocate contiguous
memory, and if it fails, it falls back to 4K fragmented allocation.
Once the memory is fragmented, the first allocation might take a lot
of time, and even fail, which can cause connection failures.
This patch changes the logic to always allocate with 4K granularity,
since it's more robust and more likely to succeed.
This patch was tested with Lustre and no performance degradation
was observed.
Note: This commit eliminates the "shrinking WQE" feature. This feature
depended on using vmap to create a virtually contiguous send WQ.
vmap use was abandoned due to problems with several processors (see the
commit cited below). As a result, shrinking WQE was available only with
physically contiguous send WQs. Allocating such send WQs caused the
problems described above.
Therefore, as a side effect of eliminating the use of large physically
contiguous send WQs, the shrinking WQE feature became unavailable.
Warning example:
worker/20:1: page allocation failure: order:8, mode:0x80d0
CPU: 20 PID: 513 Comm: kworker/20:1 Tainted: G OE ------------
Workqueue: ib_cm cm_work_handler [ib_cm]
Call Trace:
[<ffffffff81686d81>] dump_stack+0x19/0x1b
[<ffffffff81186160>] warn_alloc_failed+0x110/0x180
[<ffffffff8118a954>] __alloc_pages_nodemask+0x9b4/0xba0
[<ffffffff811ce868>] alloc_pages_current+0x98/0x110
[<ffffffff81184fae>] __get_free_pages+0xe/0x50
[<ffffffff8133f6fe>] swiotlb_alloc_coherent+0x5e/0x150
[<ffffffff81062551>] x86_swiotlb_alloc_coherent+0x41/0x50
[<ffffffffa056b4c4>] mlx4_buf_direct_alloc.isra.7+0xc4/0x180 [mlx4_core]
[<ffffffffa056b73b>] mlx4_buf_alloc+0x1bb/0x260 [mlx4_core]
[<ffffffffa0b15496>] create_qp_common+0x536/0x1000 [mlx4_ib]
[<ffffffff811c6ef7>] ? dma_pool_free+0xa7/0xd0
[<ffffffffa0b163c1>] mlx4_ib_create_qp+0x3b1/0xdc0 [mlx4_ib]
[<ffffffffa0b01bc2>] ? mlx4_ib_create_cq+0x2d2/0x430 [mlx4_ib]
[<ffffffffa0b21f20>] mlx4_ib_create_qp_wrp+0x10/0x20 [mlx4_ib]
[<ffffffffa08f152a>] ib_create_qp+0x7a/0x2f0 [ib_core]
[<ffffffffa06205d4>] rdma_create_qp+0x34/0xb0 [rdma_cm]
[<ffffffffa08275c9>] kiblnd_create_conn+0xbf9/0x1950 [ko2iblnd]
[<ffffffffa074077a>] ? cfs_percpt_unlock+0x1a/0xb0 [libcfs]
[<ffffffffa0835519>] kiblnd_passive_connect+0xa99/0x18c0 [ko2iblnd]
Fixes: 73898db04301 ("net/mlx4: Avoid wrong virtual mappings")
Signed-off-by: Jack Morgenstein <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This clearly indicates that the input is a bitwise combination of values
in an enum, and identifies which enum contains the definition of the bits.
Special accessors are provided that handle the mandatory validation of the
allowed bits and enforce the correct type for bitwise flags.
If we had introduced this at the start then the kabi would have uniformly
used u64 data to pass flags, however today there is a mixture of u64 and
u32 flags. All places are converted to accept both sizes and the accessor
fixes it. This allows all existing flags to grow to u64 in future without
any hassle.
Finally all flags are, by definition, optional. If flags are not passed
the accessor does not fail, but provides a value of zero.
Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
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Since neither ib_post_send() nor ib_post_recv() modify the data structure
their second argument points at, declare that argument const. This change
makes it necessary to declare the 'bad_wr' argument const too and also to
modify all ULPs that call ib_post_send(), ib_post_recv() or
ib_post_srq_recv(). This patch does not change any functionality but makes
it possible for the compiler to verify whether the
ib_post_(send|recv|srq_recv) really do not modify the posted work request.
To make this possible, only one cast had to be introduce that casts away
constness, namely in rpcrdma_post_recvs(). The only way I can think of to
avoid that cast is to introduce an additional loop in that function or to
change the data type of bad_wr from struct ib_recv_wr ** into int
(an index that refers to an element in the work request list). However,
both approaches would require even more extensive changes than this
patch.
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Chuck Lever <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Since the next patch will constify the wr pointer, do not modify the data
that pointer points at.
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Cc: Saeed Mahameed <[email protected]>
Acked-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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When posting a send work request, the work request that is posted is not
modified by any of the RDMA drivers. Make this explicit by constifying
most ib_send_wr pointers in RDMA transport drivers.
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Reviewed-by: Steve Wise <[email protected]>
Reviewed-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Since the next patch will change the return type of these functions into a
const pointer and since the iSER driver modifies the work request these
functions return a pointer two, inline two work request conversion
function calls. This patch does not change any functionality.
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Reviewed-by: Max Gurtovoy <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Code changes in smc have become so complicated this cycle that the RDMA
patches to remove ib_query_gid in smc create too complex merge conflicts.
Allow those conflicts to be resolved by using the net/smc hunks by
providing a compatibility wrapper. During the second phase of the merge
window this wrapper will be deleted and smc updated to use the new API.
Reported-by: Stephen Rothwell <[email protected]>
Reviewed-by: Parav Pandit <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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The driver implements the modify_cq callback, but did not set the bit to
expose it to userspace.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Because the data structure of hip08 is little endian, it needs to fix the
immediate field of wqe and cqe into __le32.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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In order to avoid using usleep function in lock function, we use delay
function instead of it. Besides, it also use brackets for standardized
the computed order.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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When hop_num is more than three, it need to return -EINVAL. This patch
fixes it.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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When create loop qp fail, it will return the correct result when
modify_qp() fails.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch adds PCI matching for the hns 50GE NIC.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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When init cmq fail in initial flow of RoCE, it should return the errno of
cmq_init function, not of the rest call.
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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When a CX5 device is configured in dual-port RoCE mode, after creating
many VFs against port 1, creating the same number of VFs against port 2
will flood kernel/syslog with something like
"mlx5_*:mlx5_ib_bind_slave_port:4266:(pid 5269): port 2 already
affiliated."
So basically, when traversing mlx5_ib_dev_list, mlx5_ib_add_slave_port()
repeatedly attempts to bind the new mpi structure to every device on the
list until it finds an unbound device.
Change the log level from warn to dbg to avoid log flooding as the warning
should be harmless.
Signed-off-by: Qing Huang <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch avoids that the following compiler warning is reported when
building with gcc 8 and W=1:
drivers/infiniband/hw/usnic/usnic_fwd.c:95:2: warning: 'strncpy' output may be truncated copying 16 bytes from a string of length 20 [-Wstringop-truncation]
strncpy(ufdev->name, netdev_name(ufdev->netdev),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sizeof(ufdev->name) - 1);
~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Bart Van Assche <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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The call in svc_rdma_post_chunk_ctxt() does actually use bad_wr.
Fixes: ed288d74a9e5 ("net/xprtrdma: Simplify ib_post_(send|recv|srq_recv)() calls")
Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Currently if the cm_id is not bound to any netdevice, than for such cm_id,
net namespace is ignored; which is incorrect.
Regardless of cm_id bound to a netdevice or not, net namespace must
match. When a cm_id is bound to a netdevice, in such case net namespace
and netdevice both must match.
Fixes: 4c21b5bcef73 ("IB/cma: Add net_dev and private data checks to RDMA CM")
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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When netdevice is not found for a request, and if it for RoCE port,
currently it allows matching the listener as long as port number matches
by ignoring the netdevice.
Now that we always prefer to have netdevice associated with RoCE, when
netdevice is not found, don't consider RoCE ports.
In other words, a NULL netdevice with RoCE is not acceptable. Therefore,
remove this confusing RoCE port ignorance check.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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For RoCE, when CM requests are received for RC and UD connections,
netdevice of the incoming request is unavailable. Because of that CM
requests are always forwarded to init_net namespace.
Now that we have the GID attribute available, introduce SGID attribute in
incoming CM requests and refer to the netdevice of it. This is similar to
existing SGID attribute field in outgoing CM requests for RC and UD
transports.
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This driver doesn't provide any kernel services, it only provides
an interface via uverbs, so it should depend on, not select, uverbs
support.
Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch implements the srq specific verbs such as create/destroy/modify
and post_srq_recv. And adds srq specific structures and defines to t4.h
and uapi.
Also updates the cq poll logic to deal with completions that are
associated with the SRQ's.
This patch also handles kernel mode SRQ_LIMIT events as well as flushed
SRQ buffers
Signed-off-by: Raju Rangoju <[email protected]>
Reviewed-by: Steve Wise <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch adds kernel mode t4_srq structures and support functions,
uapi structures and defines, as well as firmware work request structures.
Signed-off-by: Raju Rangoju <[email protected]>
Reviewed-by: Steve Wise <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Remove unnecessary parentheses to fix the clang warning of extraneous
parentheses.
Signed-off-by: Varsha Rao <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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This patch avoids that the following compiler warning is reported when
building with gcc 8 and W=1:
In function 'ocrdma_mbx_get_ctrl_attribs',
inlined from 'ocrdma_init_hw' at drivers/infiniband/hw/ocrdma/ocrdma_hw.c:3224:11:
drivers/infiniband/hw/ocrdma/ocrdma_hw.c:1368:3: warning: 'strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation]
strncpy(dev->model_number,
^~~~~~~~~~~~~~~~~~~~~~~~~~
hba_attribs->controller_model_number, 31);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Bart Van Assche <[email protected]>
Acked-by: Selvin Xavier <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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