aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/mlx5/cq.c
Commit message (Collapse)AuthorAge
* net/mlx5_core: Modify arm CQ in preparation for upcoming Ethernet driverSaeed Mahameed2015-04-02
| | | | | | | | Pass consumer index as a parameter to arm CQ 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>
* net/mlx5_core: Move completion eqs from mlx5_ib to mlx5_coreSaeed Mahameed2015-04-02
| | | | | | | | | | Preparation for ethernet driver. These functions will be used in drivers other than mlx5_ib. 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>
* IB/mlx5: Fix Mellanox copyright noteSaeed Mahameed2015-04-02
| | | | | | | 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>
* net/mlx5_core: Clear doorbell record inside mlx5_db_alloc()Saeed Mahameed2015-04-02
| | | | | | | | | 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>
* mlx5: don't duplicate kvfree()Al Viro2014-11-21
| | | | | | 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>
* net/mlx5_core: Update device capabilities handlingEli Cohen2014-10-03
| | | | | | | | | | 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>
* mlx5: minor fixes (mainly avoidance of hidden casts)Jack Morgenstein2014-07-30
| | | | | | | | | | | | There were many places where parameters which should be u8/u16 were integer type. Additionally, in 2 places, a check for a non-null pointer was added before dereferencing the pointer (this is actually a bug fix). 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>
* mlx5: Move pci device handling from mlx5_ib to mlx5_coreJack Morgenstein2014-07-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* IB/mlx5: add missing padding at end of struct mlx5_ib_create_cqYann Droneaud2014-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ABI struct mlx5_ib_create_cq get padded to be aligned on a 8 bytes multiple, while for i386, such padding is not added. The tool pahole can be used to find such implicit padding: $ pahole --anon_include \ --nested_anon_include \ --recursive \ --class_name mlx5_ib_create_cq \ 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 @@ -34,9 +34,8 @@ struct mlx5_ib_create_cq { __u64 db_addr; /* 8 8 */ __u32 cqe_size; /* 16 4 */ - /* size: 20, cachelines: 1, members: 3 */ - /* last cacheline: 20 bytes */ + /* size: 24, cachelines: 1, members: 3 */ + /* padding: 4 */ + /* last cacheline: 24 bytes */ }; This 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, a x86_64 kernel will refuse to read past the i386 userspace provided buffer and the uverb will fail. Anyway, if the structure lies in memory on a page boundary and next page is not mapped, ib_copy_from_udata() will fail when trying to read the 4 bytes of padding and the uverb will fail. This patch makes create_cq_user() takes care of the input data size to handle the case where no padding is provided. This way, x86_64 kernel will be able to handle struct mlx5_ib_create_cq 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>
* IB/mlx5: Collect signature error completionSagi Grimberg2014-03-07
| | | | | | | | | | | | | | | | | | | This commit takes care of the generated signature error CQE generated by the HW (if happened). The underlying mlx5 driver will handle signature error completions and will mark the relevant memory region as dirty. Once the consumer gets the completion for the transaction, it must check for signature errors on signature memory region using a new lightweight verb ib_check_mr_status(). In case the user doesn't check for signature error (i.e. doesn't call ib_check_mr_status() with status check IB_MR_CHECK_SIG_STATUS), the memory region cannot be used for another signature operation (REG_SIG_MR work request will fail). Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Verify reserved fields are clearedEli Cohen2014-01-23
| | | | | | | | | | Verify that reserved fields in struct mlx5_ib_resize_cq are cleared before continuing execution of the verb. This is required to allow making use of this area in future revisions. Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Add support for resize CQEli Cohen2014-01-23
| | | | | | | Implement resize CQ which is a mandatory verb in mlx5. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Implement modify CQEli Cohen2014-01-23
| | | | | | | | Modify CQ is used by ULPs like IPoIB to change moderation parameters. This patch adds support in mlx5. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix page shift in create CQ for userspaceEli Cohen2013-11-15
| | | | | | | When creating a CQ, we must use mlx5 adapter page shift. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Use enum to indicate adapter page sizeEli Cohen2013-11-08
| | | | | | | | | 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>
* mlx5: Support communicating arbitrary host page size to firmwareEli Cohen2013-11-08
| | | | | | | | | | | 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>
* IB/mlx5: Fix srq free in destroy qpMoshe Lazer2013-11-08
| | | | | | | | | | | | | On destroy QP the driver walks over the relevant CQ and removes CQEs reported for the destroyed QP. It also frees the related SRQ entry without checking that this is actually an SRQ-related CQE. In case of a CQ used for both send and receive QP, we could free SRQ entries for send CQEs. This patch resolves this issue by verifying that this is a SRQ related CQE by checking the SRQ number in the CQE is not zero. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix check of number of entries in create CQEli Cohen2013-11-08
| | | | | | | Verify that the value is non negative before rounding up to power of 2. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Add driver for Mellanox Connect-IB adaptersEli Cohen2013-07-08
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>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-11 06:30:23 -0400