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path: root/drivers/infiniband/hw/mlx5/srq.c
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2018-06-13treewide: kvzalloc() -> kvcalloc()Kees Cook1-2/+2
The kvzalloc() function has a 2-factor argument form, kvcalloc(). This patch replaces cases of: kvzalloc(a * b, gfp) with: kvcalloc(a * b, gfp) as well as handling cases of: kvzalloc(a * b * c, gfp) with: kvzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kvcalloc(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kvzalloc(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; @@ ( kvzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kvzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kvzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kvzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kvzalloc( - sizeof(char) * COUNT + COUNT , ...) | kvzalloc( - 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; @@ ( - kvzalloc + kvcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kvzalloc + kvcalloc ( - 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; @@ ( kvzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kvzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kvzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kvzalloc( - 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; @@ ( kvzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kvzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kvzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kvzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kvzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kvzalloc( - 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; @@ ( kvzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - 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; @@ ( kvzalloc(C1 * C2 * C3, ...) | kvzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kvzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kvzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kvzalloc( - 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; @@ ( kvzalloc(sizeof(THING) * C2, ...) | kvzalloc(sizeof(TYPE) * C2, ...) | kvzalloc(C1 * C2 * C3, ...) | kvzalloc(C1 * C2, ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - (E1) * E2 + E1, E2 , ...) | - kvzalloc + kvcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kvzalloc + kvcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-03-13IB/mlx5: Fix integer overflows in mlx5_ib_create_srqBoris Pismenny1-6/+9
This patch validates user provided input to prevent integer overflow due to integer manipulation in the mlx5_ib_create_srq function. Cc: syzkaller <syzkaller@googlegroups.com> Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Signed-off-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-29IB/mlx5: Support IB_SRQT_TMArtemy Kovalyov1-3/+15
Pass to mlx5_core flag to enable rendezvous offload, list_size and CQ when SRQ created with IB_SRQT_TM. Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Reviewed-by: Yossi Itigin <yosefe@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-29IB/core: Separate CQ handle in SRQ contextArtemy Kovalyov1-4/+7
Before this change CQ attached to SRQ was part of XRC specific extension. Moving CQ handle out makes it available to other types extending SRQ functionality. Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Reviewed-by: Yossi Itigin <yosefe@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/mlx5: use kvmalloc_array for mlx5_ib_wqLi Dongyang1-2/+2
We observed multiple times on our Lustre OSS servers that when the system memory is fragmented, kmalloc() in create_kernel_qp() could fail order 4/5 allocations while we still have many free pages. Switch to kvmalloc_array() to allow the operation to contine. Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-14{net, IB}/mlx5: Replace mlx5_vzalloc with kvzallocLeon Romanovsky1-2/+2
Commit a7c3e901a46f ("mm: introduce kv[mz]alloc helpers") added proper implementation of mlx5_vzalloc function to the MM core. This made the mlx5_vzalloc function useless, so let's remove it. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-02-14IB/mlx5: Fix out-of-bound accessLeon Romanovsky1-8/+3
When we initialize buffer to create SRQ in kernel, the number of pages was less than actually used in following mlx5_fill_page_array(). Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Cc: <stable@vger.kernel.org> # v3.10+ Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-14Merge branch 'mlx' into merge-testDoug Ledford1-2/+2
2016-12-13IB/mlx5: Assign SRQ type earlierMaor Gottlieb1-1/+1
Move the SRQ type assignment to be before actually using it in create_srq_user() and in create_srq_kernel() functions. Fixes: af1ba291c5e4 ('{net, IB}/mlx5: Refactor internal SRQ API') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03IB/mlx5: Remove debug prints after allocation failureLeon Romanovsky1-2/+0
The prints after [k|v][m|z|c]alloc() functions are not needed, because in case of failure, allocator will print their internal error prints anyway. Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-11-17IB/mlx5: Limit mkey page size to 2GBMajd Dibbiny1-1/+1
The maximum page size in the mkey context is 2GB. Until today, we didn't enforce this requirement in the code, and therefore, if we got a page size larger than 2GB, we have passed zeros in the log_page_shift instead of the actual value and the registration failed. This patch limits the driver to use compound pages of 2GB for mkeys. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07IB/mlx5: Move and decouple user vendor structuresLeon Romanovsky1-1/+0
This patch decouples and moves vendors specific structures to common UAPI folder which will be visible to all consumers. These structures are used by user-space library driver (libmlx5) and currently manually copied to that library. This move will allow cross-compile against these files and simplify introduction of vendor specific data. Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23{net, IB}/mlx5: Refactor internal SRQ APIArtemy Kovalyov1-62/+40
Currently, the SRQ API uses the obsolete mlx5_*_srq_mbox_{in,out} structs which limit the ability to pass the SRQ attributes between net and IB parts of the driver. This patch changes the SRQ API so as to use auto-generated structs and provides a better way to pass attributes which will be in use by coming features. Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx5: Reset flow support for IB kernel ULPsMaor Gottlieb1-1/+9
The driver exposes interfaces that directly relate to HW state. Upon fatal error, consumers of these interfaces (ULPs) that rely on completion of all their posted work-request could hang, thereby introducing dependencies in shutdown order. To prevent this from happening, we manage the relevant resources (CQs, QPs) that are used by the device. Upon a fatal error, we now generate simulated completions for outstanding WQEs that were not completed at the time the HW was reset. It includes invoking the completion event handler for all involved CQs so that the ULPs will poll those CQs. When polled we return simulated CQEs with IB_WC_WR_FLUSH_ERR return code enabling ULPs to clean up their resources and not wait forever for completions upon receiving remove_one. The above change requires an extra check in the data path to make sure that when device is in error state, the simulated CQEs will be returned and no further WQEs will be posted. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03IB/{core, mlx5}: Fix input len in vendor part of create_qp/srqMajd Dibbiny1-8/+3
Currently, the inlen field of the vendor's part of the command doesn't match the command buffer. This happens because the inlen accommodates ib_uverbs_cmd_hdr which is deducted from the in buffer. This is problematic since the vendor function could be called either from the legacy verb (where the input length mismatches the actual length) or by the extended verb (where the length matches). The vendor has no idea which function calls it and therefore has no way to know how the length variable should be treated. Fixing this by aligning the inlen to the correct length. All vendor drivers either assumed that inlen >= sizeof(vendor_uhw_cmd) or just failed wrongly (mlx5) and fixed in this patch. Fixes: cfb5e088e26a ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs') Signed-off-by: Majd Dibbiny <majd@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03IB/mlx5: Avoid using user-index for SRQsMajd Dibbiny1-11/+19
Normal SRQs, unlike XRC SRQs, don't have user-index, therefore avoid verifying it and using it. Fixes: cfb5e088e26a ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs') Signed-off-by: Majd Dibbiny <majd@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-21IB/mlx5: Add CQE version 1 support to user QPs and SRQsHaggai Abramovsky1-7/+34
Enforce working with CQE version 1 when the user supports CQE version 1 and asked to work this way. If the user still works with CQE version 0, then use the default CQE version to tell the Firmware that the user still works in the older mode. After this patch, the kernel still reports CQE version 0. Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-05net/mlx5_core: Enable XRCs and SRQs when using ISSI > 0Haggai Abramonvsky1-1/+1
When working in ISSI > 0 mode, the model exposed by the device for XRCs and SRQs is different. XRCs use XRC SRQs and plain SRQs are based on RPM (Receive Memory Pool). Add helper functions to create, modify, query, and arm XRC SRQs and RMPs. Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-31net/mlx5_core: New device capabilities handlingSaeed Mahameed1-4/+3
- Query all supported types of dev caps on driver load. - Store the Cap data outbox per cap type into driver private data. - Introduce new Macros to access/dump stored caps (using the auto generated data types). - Obsolete SW representation of dev caps (no need for SW copy for each cap). - Modify IB driver to use new macros for checking caps. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-31net/mlx5_core,mlx5_ib: Do not use vmap() on coherent memoryAmir Vadai1-1/+1
As David Daney pointed in mlx4_core driver [1], mlx5_core is also misusing the DMA-API. This patch is removing the code that vmap() memory allocated by dma_alloc_coherent(). After this patch, users of this drivers might fail allocating resources on memory fragmeneted systems. This will be fixed later on. [1] - https://patchwork.ozlabs.org/patch/458531/ CC: David Daney <david.daney@cavium.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-02IB/mlx5: Fix Mellanox copyright noteSaeed Mahameed1-1/+1
Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-02net/mlx5_core: Clear doorbell record inside mlx5_db_alloc()Saeed Mahameed1-2/+0
Do it in one place instead of every where the function is invoked Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21mlx5: don't duplicate kvfree()Al Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04net/mlx5_core: Update device capabilities handlingEli Cohen1-2/+4
Rearrange struct mlx5_caps so it has a "gen" field to represent the current capabilities configured for the device. Max capabilities can also be queried from the device. Also update capabilities struct to contain more fields as per the latest revision if firmware specification. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-31mlx5: Move pci device handling from mlx5_ib to mlx5_coreJack Morgenstein1-13/+13
In preparation for a new mlx5 device which is VPI (i.e., ports can be either IB or ETH), move the pci device functionality from mlx5_ib to mlx5_core. This involves the following changes: 1. Move mlx5_core_dev struct out of mlx5_ib_dev. mlx5_core_dev is now an independent structure maintained by mlx5_core. mlx5_ib_dev now has a pointer to that struct. This requires changing a lot of places where the core_dev struct was accessed via mlx5_ib_dev (now, this needs to be a pointer dereference). 2. All PCI initializations are now done in mlx5_core. Thus, it is now mlx5_core which does pci_register_device (and not mlx5_ib, as was previously). 3. mlx5_ib now registers itself with mlx5_core as an "interface" driver. This is very similar to the mechanism employed for the mlx4 (ConnectX) driver. Once the HCA is initialized (by mlx5_core), it invokes the interface drivers to do their initializations. 4. There is a new event handler which the core registers: mlx5_core_event(). This event handler invokes the event handlers registered by the interfaces. Based on a patch by Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-27IB/mlx5: add missing padding at end of struct mlx5_ib_create_srqYann Droneaud1-1/+13
The i386 ABI disagrees with most other ABIs regarding alignment of data type larger than 4 bytes: on most ABIs a padding must be added at end of the structures, while it is not required on i386. So for most ABIs struct mlx5_ib_create_srq gets implicitly padded to be aligned on a 8 bytes multiple, while for i386, such padding is not added. Tool pahole could be used to find such implicit padding: $ pahole --anon_include \ --nested_anon_include \ --recursive \ --class_name mlx5_ib_create_srq \ drivers/infiniband/hw/mlx5/mlx5_ib.o Then, structure layout can be compared between i386 and x86_64: +++ obj-i386/drivers/infiniband/hw/mlx5/mlx5_ib.o.pahole.txt 2014-03-28 11:43:07.386413682 +0100 --- obj-x86_64/drivers/infiniband/hw/mlx5/mlx5_ib.o.pahole.txt 2014-03-27 13:06:17.788472721 +0100 @@ -69,7 +68,6 @@ struct mlx5_ib_create_srq { __u64 db_addr; /* 8 8 */ __u32 flags; /* 16 4 */ - /* size: 20, cachelines: 1, members: 3 */ - /* last cacheline: 20 bytes */ + /* size: 24, cachelines: 1, members: 3 */ + /* padding: 4 */ + /* last cacheline: 24 bytes */ }; ABI disagreement will make an x86_64 kernel try to read past the buffer provided by an i386 binary. When boundary check will be implemented, the x86_64 kernel will refuse to read past the i386 userspace provided buffer and the uverb will fail. Anyway, if the structure lay in memory on a page boundary and next page is not mapped, ib_copy_from_udata() will fail and the uverb will fail. This patch makes create_srq_user() takes care of the input data size to handle the case where no padding was provided. This way, x86_64 kernel will be able to handle struct mlx5_ib_create_srq as sent by unpatched and patched i386 libmlx5. Link: http://marc.info/?i=cover.1399309513.git.ydroneaud@opteya.com Cc: <stable@vger.kernel.org> Fixes: e126ba97dba9e ("mlx5: Add driver for Mellanox Connect-IB adapter") Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-09mlx5: Use enum to indicate adapter page sizeEli Cohen1-2/+2
The Connect-IB adapter has an inherent page size which equals 4K. Define an new enum that equals the page shift and use it instead of using the value 12 throughout the code. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-09mlx5: Support communicating arbitrary host page size to firmwareEli Cohen1-2/+2
Connect-IB firmware requires 4K pages to be communicated with the driver. This patch breaks larger pages to 4K units to enable support for architectures utilizing larger page size, such as PowerPC. This patch also fixes several places that referred to PAGE_SHIFT instead of explicit 12 which is the inherent page shift on Connect-IB. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-09IB/mlx5: Simplify mlx5_ib_destroy_srqEli Cohen1-3/+1
Make use of destroy_srq_kernel() to clear SRQ resouces. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-10-10IB/mlx5: Fix memory leak in mlx5_ib_create_srqMoshe Lazer1-1/+3
The patch fixes the rollback in case of failure in creating SRQ. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-07-08mlx5: Add driver for Mellanox Connect-IB adaptersEli Cohen1-0/+473
The driver is comprised of two kernel modules: mlx5_ib and mlx5_core. This partitioning resembles what we have for mlx4, except that mlx5_ib is the pci device driver and not mlx5_core. mlx5_core is essentially a library that provides general functionality that is intended to be used by other Mellanox devices that will be introduced in the future. mlx5_ib has a similar role as any hardware device under drivers/infiniband/hw. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> [ Merge in coccinelle fixes from Fengguang Wu <fengguang.wu@intel.com>. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
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