Commit Graph

247 Commits

Author SHA1 Message Date
Jason Gunthorpe
0a3173a5f0 Merge branch 'linus/master' into rdma.git for-next
rdma.git merge resolution for the 4.19 merge window

Conflicts:
 drivers/infiniband/core/rdma_core.c
   - Use the rdma code and revise with the new spelling for
     atomic_fetch_add_unless
 drivers/nvme/host/rdma.c
   - Replace max_sge with max_send_sge in new blk code
 drivers/nvme/target/rdma.c
   - Use the blk code and revise to use NULL for ib_post_recv when
     appropriate
   - Replace max_sge with max_recv_sge in new blk code
 net/rds/ib_send.c
   - Use the net code and revise to use NULL for ib_post_recv when
     appropriate

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-16 14:21:29 -06:00
Gal Pressman
a1ceeca679 RDMA/hns: Fix usage of bitmap allocation functions return values
hns bitmap allocation functions return 0 on success and -1 on failure.
Callers of these functions wrongly used their return value as an errno,
fix that by making a proper conversion.

Fixes: a598c6f4c5 ("IB/hns: Simplify function of pd alloc and qp alloc")
Signed-off-by: Gal Pressman <pressmangal@gmail.com>
Acked-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-15 15:08:35 -06:00
Yixian Liu
0425e3e6e0 RDMA/hns: Support flush cqe for hip08 in kernel space
According to IB protocol, there are some cases that work requests must
return the flush error completion status through the completion queue. Due
to hardware limitation, the driver needs to assist the flush process.

This patch adds the support of flush cqe for hip08 in the cases that
needed, such as poll cqe, post send, post recv and aeqe handle.

The patch also considered the compatibility between kernel and user space.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-02 20:03:25 -06:00
Lijun Ou
cdfa4ad5d6 RDMA/hns: Program the tclass and flow label into the hardware
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 <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:42:44 -06:00
Lijun Ou
426c414619 RDMA/hns: Use macro instead of magic number
This patch mainly uses CMD_CSQ_DESC_NUM instead of magic number in order
to improve readability.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:42:44 -06:00
Lijun Ou
ac7cbf96c2 RDMA/hns: Modify qp will return errno when qp type is illegal
Set for ret was missing in the error path here, resulting in incorrect
error code for modify_qp.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:42:44 -06:00
Lijun Ou
c8e46f8d63 RDMA/hns: Assign the value for vlan field of qp context
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 <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:42:44 -06:00
Lijun Ou
610b89677f RDMA/hns: Only assgin the fields of the av if IB_QP_AV bit is set
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 <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:42:44 -06:00
Bart Van Assche
d34ac5cd3a RDMA, core and ULPs: Declare ib_post_send() and ib_post_recv() arguments const
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 <bart.vanassche@wdc.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:09:34 -06:00
Bart Van Assche
f696bf6d64 RDMA: Constify the argument of the work request conversion functions
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 <bart.vanassche@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:00:20 -06:00
Lijun Ou
df06510793 RDMA/hns: Enable modify_cq for uverbs.
The driver implements the modify_cq callback, but did not set the bit to
expose it to userspace.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 20:12:35 -06:00
Lijun Ou
0c4a0e2987 RDMA/hns: Update the data type of immediate data
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 <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 20:10:37 -06:00
Lijun Ou
73b4e1f4c0 RDMA/hns: Use delay instead of usleep
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 <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 16:51:47 -06:00
Lijun Ou
26f63b9c33 RDMA/hns: Add illegal hop_num judgement
When hop_num is more than three, it need to return -EINVAL.  This patch
fixes it.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 16:51:34 -06:00
Lijun Ou
dedf63506a RDMA/hns: Return correct error code from hns_roce_v1_rsv_lp_qp()
When create loop qp fail, it will return the correct result when
modify_qp() fails.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 16:51:12 -06:00
Lijun Ou
aaa3156779 RDMA/hns: Add 50GE type of hnae3 device match
This patch adds PCI matching for the hns 50GE NIC.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 16:49:06 -06:00
Lijun Ou
3635ac0208 RDMA/hns: Do not overwrite the error code during error unwind in hns_roce_init
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 <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26 16:48:48 -06:00
Sakari Ailus
977d5ad39f ACPI: Convert ACPI reference args to generic fwnode reference args
Convert all users of struct acpi_reference_args to more generic
fwnode_reference_args. This will

 1) avoid an ACPI specific references to device nodes with integer
    arguments as well as

 2) allow making references to nodes other than device nodes in ACPI.

As a by-product, convert the fwnode interger arguments to u64. The
arguments were 64-bit integers on ACPI but the fwnode arguments were
just 32-bit.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-07-23 12:44:52 +02:00
Bart Van Assche
15039efadd hns: Remove a set-but-not-used variable
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11 14:21:52 -06:00
oulijun
e8e8b65224 RDMA/hns: Update the implementation of set_mac
This patch updates the implementation of set_mac by using
command queue instead of directly writing registers.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11 14:09:25 -06:00
oulijun
4db134a3dd RDMA/hns: Update the implementation of set_gid
This patch updates the implementation of set_gid by using
command queue instead of directly writing registers.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11 14:09:25 -06:00
oulijun
ded58ff987 RDMA/hns: Add TPQ link table support
In hip08, the TPQ(Timer Poll Queue) should be extended
to host memory. This patch adds the support of TPQ.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11 14:09:25 -06:00
oulijun
6b63597d35 RDMA/hns: Add TSQ link table support
In hip08, TSQ(Transport Service Queue) should be extended
to host memory to store the doorbells. This patch adds the
support of creating TSQ, and then configured to the hardware.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11 14:09:25 -06:00
oulijun
0576cbde14 RDMA/hns: Fix endian conversions and annotations
This patch removes the warnings reported by sparse.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-11 14:09:25 -06:00
Bart Van Assche
7496a511a0 IB/mlx5: Remove set-but-not-used variables
Avoid that the compiler complains about set-but-not-used variables when
building with W=1. This patch does not change any functionality.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-03 14:14:21 -06:00
Steve Wise
33023fb85a IB/core: add max_send_sge and max_recv_sge attributes
This patch replaces the ib_device_attr.max_sge with max_send_sge and
max_recv_sge. It allows ulps to take advantage of devices that have very
different send and recv sge depths.  For example cxgb4 has a max_recv_sge
of 4, yet a max_send_sge of 16.  Splitting out these attributes allows
much more efficient use of the SQ for cxgb4 with ulps that use the RDMA_RW
API. Consider a large RDMA WRITE that has 16 scattergather entries.
With max_sge of 4, the ulp would send 4 WRITE WRs, but with max_sge of
16, it can be done with 1 WRITE WR.

Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-18 13:17:28 -06:00
Parav Pandit
47ec386662 RDMA: Convert drivers to use sgid_attr instead of sgid_index
The core code now ensures that all driver callbacks that receive an
rdma_ah_attrs will have a sgid_attr's pointer if there is a GRH present.

Drivers can use this pointer instead of calling a query function with
sgid_index. This simplifies the drivers and also avoids races where a
gid_index lookup may return different data if it is changed.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-06-18 11:11:26 -06:00
Parav Pandit
f4df9a7c34 RDMA: Use GID from the ib_gid_attr during the add_gid() callback
Now that ib_gid_attr contains the GID, make use of that in the add_gid()
callback functions for the provider drivers to simplify the add_gid()
implementations.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-18 11:09:05 -06:00
Kees Cook
fad953ce0b treewide: Use array_size() in vzalloc()
The vzalloc() function has no 2-factor argument form, so multiplication
factors need to be wrapped in array_size(). This patch replaces cases of:

        vzalloc(a * b)

with:
        vzalloc(array_size(a, b))

as well as handling cases of:

        vzalloc(a * b * c)

with:

        vzalloc(array3_size(a, b, c))

This does, however, attempt to ignore constant size factors like:

        vzalloc(4 * 1024)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  vzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  vzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  vzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
  vzalloc(
-	sizeof(TYPE) * (COUNT_ID)
+	array_size(COUNT_ID, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT_ID
+	array_size(COUNT_ID, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * (COUNT_CONST)
+	array_size(COUNT_CONST, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT_CONST
+	array_size(COUNT_CONST, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT_ID)
+	array_size(COUNT_ID, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT_ID
+	array_size(COUNT_ID, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT_CONST)
+	array_size(COUNT_CONST, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT_CONST
+	array_size(COUNT_CONST, sizeof(THING))
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

  vzalloc(
-	SIZE * COUNT
+	array_size(COUNT, SIZE)
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  vzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  vzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  vzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  vzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  vzalloc(C1 * C2 * C3, ...)
|
  vzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants.
@@
expression E1, E2;
constant C1, C2;
@@

(
  vzalloc(C1 * C2, ...)
|
  vzalloc(
-	E1 * E2
+	array_size(E1, E2)
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Kees Cook
6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
YueHaibing
8c61b24585 IB/hns: Use zeroing memory allocator instead of allocator/memset
Use dma_zalloc_coherent for allocating zeroed memory and
remove unnecessary memset function.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-04 10:50:04 -06:00
Doug Ledford
008fba465d RDMA/hns_roce: Don't check return value of zap_vma_ptes()
There is no need to check return value of zap_vma_ptes()
because there is nothing to do with this knowledge.

Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-06-01 11:20:43 -04:00
Wei Hu(Xavier)
fedc3abe7b RDMA/hns: Implement the disassociate_ucontext API
This patch implemented the IB core disassociate_ucontext API.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-30 20:45:03 -04:00
Wei Hu(Xavier)
0b25c9cc53 RDMA/hns: Fix the illegal memory operation when cross page
This patch fixed the potential illegal operation when using the
extend sge buffer cross page in post send operation. The bug
will cause the calltrace as below.

[ 3302.922107] Unable to handle kernel paging request at virtual address ffff00003b3a0004
[ 3302.930009] Mem abort info:
[ 3302.932790]   Exception class = DABT (current EL), IL = 32 bits
[ 3302.938695]   SET = 0, FnV = 0
[ 3302.941735]   EA = 0, S1PTW = 0
[ 3302.944863] Data abort info:
[ 3302.947729]   ISV = 0, ISS = 0x00000047
[ 3302.951551]   CM = 0, WnR = 1
[ 3302.954506] swapper pgtable: 4k pages, 48-bit VAs, pgd = ffff000009ea5000
[ 3302.961279] [ffff00003b3a0004] *pgd=00000023dfffe003, *pud=00000023dfffd003, *pmd=00000022dc84c003, *pte=0000000000000000
[ 3302.972224] Internal error: Oops: 96000047 [#1] SMP
[ 3302.999509] CPU: 9 PID: 19628 Comm: roce_test_main Tainted: G           OE   4.14.10 #1
[ 3303.007498] task: ffff80234df78000 task.stack: ffff00000f640000
[ 3303.013412] PC is at hns_roce_v2_post_send+0x690/0xe20 [hns_roce_pci]
[ 3303.019843] LR is at hns_roce_v2_post_send+0x658/0xe20 [hns_roce_pci]
[ 3303.026269] pc : [<ffff0000020694f8>] lr : [<ffff0000020694c0>] pstate: 804001c9
[ 3303.033649] sp : ffff00000f643870
[ 3303.036951] x29: ffff00000f643870 x28: ffff80232bfa9c00
[ 3303.042250] x27: ffff80234d909380 x26: ffff00003b37f0c0
[ 3303.047549] x25: 0000000000000000 x24: 0000000000000003
[ 3303.052848] x23: 0000000000000000 x22: 0000000000000000
[ 3303.058148] x21: 0000000000000101 x20: 0000000000000001
[ 3303.063447] x19: ffff80236163f800 x18: 0000000000000000
[ 3303.068746] x17: 0000ffff86b76fc8 x16: ffff000008301600
[ 3303.074045] x15: 000020a51c000000 x14: 3128726464615f65
[ 3303.079344] x13: 746f6d6572202c29 x12: 303035312879656b
[ 3303.084643] x11: 723a6f666e692072 x10: 573a6f666e693a5d
[ 3303.089943] x9 : 0000000000000004 x8 : ffff8023ce38b000
[ 3303.095242] x7 : ffff8023ce38b320 x6 : 0000000000000418
[ 3303.100541] x5 : ffff80232bfa9cc8 x4 : 0000000000000030
[ 3303.105839] x3 : 0000000000000100 x2 : 0000000000000200
[ 3303.111138] x1 : 0000000000000320 x0 : ffff00003b3a0000
[ 3303.116438] Process roce_test_main (pid: 19628, stack limit = 0xffff00000f640000)
[ 3303.123906] Call trace:
[ 3303.126339] Exception stack(0xffff00000f643730 to 0xffff00000f643870)
[ 3303.215790] [<ffff0000020694f8>] hns_roce_v2_post_send+0x690/0xe20 [hns_roce_pci]
[ 3303.223293] [<ffff0000021c3750>] rt_ktest_post_send+0x5d0/0x8b8 [rdma_test]
[ 3303.230261] [<ffff0000021b3234>] exec_send_cmd+0x664/0x1350 [rdma_test]
[ 3303.236881] [<ffff0000021b8b30>] rt_ktest_dispatch_cmd_3+0x1510/0x3790 [rdma_test]
[ 3303.244455] [<ffff0000021bae54>] rt_ktest_dispatch_cmd_2+0xa4/0x118 [rdma_test]
[ 3303.251770] [<ffff0000021bafec>] rt_ktest_dispatch_cmd+0x124/0xaa8 [rdma_test]
[ 3303.258997] [<ffff0000021bbc3c>] rt_ktest_dev_write+0x2cc/0x568 [rdma_test]
[ 3303.265947] [<ffff0000082ad688>] __vfs_write+0x60/0x18c
[ 3303.271158] [<ffff0000082ad998>] vfs_write+0xa8/0x198
[ 3303.276196] [<ffff0000082adc7c>] SyS_write+0x6c/0xd4
[ 3303.281147] Exception stack(0xffff00000f643ec0 to 0xffff00000f644000)
[ 3303.287573] 3ec0: 0000000000000003 0000fffffc85faa8 0000000000004e60 0000000000000000
[ 3303.295388] 3ee0: 0000000021fb2000 000000000000ffff eff0e3efe4e58080 0000fffffcc724fe
[ 3303.303204] 3f00: 0000000000000040 1999999999999999 0101010101010101 0000000000000038
[ 3303.311019] 3f20: 0000000000000005 ffffffffffffffff 0d73757461747320 ffffffffffffffff
[ 3303.318835] 3f40: 0000000000000000 0000000000459b00 0000fffffc85e360 000000000043d788
[ 3303.326650] 3f60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 3303.334465] 3f80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 3303.342281] 3fa0: 0000000000000000 0000fffffc85e570 0000000000438804 0000fffffc85e570
[ 3303.350096] 3fc0: 0000ffff8553f618 0000000080000000 0000000000000003 0000000000000040
[ 3303.357911] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 3303.365729] [<ffff000008083808>] __sys_trace_return+0x0/0x4
[ 3303.371288] Code: b94008e9 34000129 b9400ce2 110006b5 (b9000402)
[ 3303.377377] ---[ end trace fd5ab98b3325cf9a ]---

Reported-by: Jie Chen <chenjie103@huawei.com>
Reported-by: Xiping Zhang (Francis) <zhangxiping3@huawei.com>
Fixes: b1c158350968("RDMA/hns: Get rid of virt_to_page and vmap calls after dma_alloc_coherent")
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-30 20:45:03 -04:00
Wei Hu(Xavier)
cb7a94c9c8 RDMA/hns: Add reset process for RoCE in hip08
This patch added reset process for RoCE in hip08.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-30 20:45:02 -04:00
Jason Gunthorpe
0394808d9e Merge branch 'mr_fix' into git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma for-next
Update mlx4 to support user MR creation against read-only memory, previously
it required the memory to be writable.

Based on rdma for-rc due to dependencies.

* mr_fix: (2 commits)
  IB/mlx4: Mark user MR as writable if actual virtual memory is writable
  IB/core: Make testing MR flags for writability a static inline function
2018-05-28 11:44:35 -06:00
Wei Hu(Xavier)
d59fcacc4b RDMA/hns: Increase checking CMQ status timeout value
This patch increases checking CMQ status timeout value and
uses the same value with NIC driver to avoid deficiency of
time.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-24 15:41:52 -06:00
Wei Hu(Xavier)
5b6eb54f58 RDMA/hns: Modify uar allocation algorithm to avoid bitmap exhaust
This patch modified uar allocation algorithm in hns_roce_uar_alloc
function to avoid bitmap exhaust.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-24 15:41:52 -06:00
oulijun
cc3391cb53 RDMA/hns: Rename the idx field of db
The lower 15 bit of paramter of db structure means different
meanings when db type is sq, rq and srq.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-24 09:39:25 -06:00
oulijun
55ba49cbce RDMA/hns: Move the location for initializing tmp_len
When posted work request, it need to compute the length of
all sges of every wr and fill it into the msg_len field of
send wqe. Thus, While posting multiple wr,
tmp_len should be reinitialized to zero.

Fixes: 8b9b8d143b ("RDMA/hns: Fix the endian problem for hns")
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-23 15:45:44 -06:00
oulijun
05d6a4ddb6 RDMA/hns: Bugfix for cq record db for kernel
When use cq record db for kernel, it needs to set the hr_cq->db_en
to 1 and configure the dma address of record cq db of qp context.

Fixes: 86188a8810 ("RDMA/hns: Support cq record doorbell for kernel space")
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-23 15:45:44 -06:00
Yixian Liu
5e6e78dbd3 RDMA/hns: Add 64KB page size support for hip08
This patch adds the support of 64KB page size for hip08
in kernel.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-16 21:44:05 -06:00
Doug Ledford
f5e27a203f Merge branch 'k.o/for-rc' into k.o/wip/dl-for-next
Several items of conflict have arisen between the RDMA stack's for-rc
branch and upcoming for-next work:

9fd4350ba8 ("IB/rxe: avoid double kfree_skb") directly conflicts with
2e47350789 ("IB/rxe: optimize the function duplicate_request")

Patches already submitted by Intel for the hfi1 driver will fail to
apply cleanly without this merge

Other people on the mailing list have notified that their upcoming
patches also fail to apply cleanly without this merge

Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 15:48:48 -04:00
Leon Romanovsky
ed3dd9b017 RDMA/hns: Drop local zgid in favor of core defined variable
The zgid is already provided by IB/core, so there is no need in locally
defined variable, let's drop it and reuse common one.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 12:08:21 -04:00
oulijun
a0403be8af RDMA/hns: Fix the bug with NULL pointer
When the last QP of eight QPs is not exist in
hns_roce_v1_mr_free_work_fn function, the
print for qpn of hr_qp may introduce a
calltrace for NULL pointer.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 10:45:18 -04:00
oulijun
79d442071a RDMA/hns: Set NULL for __internal_mr
This patch mainly configure value for __internal_mr of mr_free_pd.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 10:45:18 -04:00
oulijun
85e0274dc6 RDMA/hns: Enable inner_pa_vld filed of mpt
When enabled inner_pa_vld field of mpt, The pa0 and
pa1 will be valid and the hardware will use it
directly and not use base address of pbl. As a
result, it can reduce the delay.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 10:45:18 -04:00
oulijun
90e7a4d506 RDMA/hns: Set desc_dma_addr for zero when free cmq desc
In order to avoid illegal use for desc_dma_addr of ring,
it needs to set it zero when free cmq desc.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 10:45:18 -04:00
oulijun
778cc5a8b7 RDMA/hns: Fix the bug with rq sge
When received multiply rq sge, it should tag the
invalid lkey for the last non-zero length sge
when have some sges' length are zero. This patch
fixes it.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 10:45:18 -04:00
oulijun
391bd5fc7d RDMA/hns: Not support qp transition from reset to reset for hip06
Because hip06 hardware is not support for qp transition from
reset to reset state, it need to return errno when qp
transited from reset to reset. This patch fixes it.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09 10:45:18 -04:00