- 14 Dec, 2016 1 commit
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Arnd Bergmann authored
We get a false-positive warning in linux-next for the mlx5 driver: infiniband/hw/mlx5/mr.c: In function ‘mlx5_ib_reg_user_mr’: infiniband/hw/mlx5/mr.c:1172:5: error: ‘order’ may be used uninitialized in this function [-Werror=maybe-uninitialized] infiniband/hw/mlx5/mr.c:1161:6: note: ‘order’ was declared here infiniband/hw/mlx5/mr.c:1173:6: error: ‘ncont’ may be used uninitialized in this function [-Werror=maybe-uninitialized] infiniband/hw/mlx5/mr.c:1160:6: note: ‘ncont’ was declared here infiniband/hw/mlx5/mr.c:1173:6: error: ‘page_shift’ may be used uninitialized in this function [-Werror=maybe-uninitialized] infiniband/hw/mlx5/mr.c:1158:6: note: ‘page_shift’ was declared here infiniband/hw/mlx5/mr.c:1143:13: error: ‘npages’ may be used uninitialized in this function [-Werror=maybe-uninitialized] infiniband/hw/mlx5/mr.c:1159:6: note: ‘npages’ was declared here I had a trivial workaround for gcc-5 or higher, but that didn't work on gcc-4.9 unfortunately. The only way I found to avoid the warnings for gcc-4.9, short of initializing each of the arguments first was to change the calling conventions to separate the error code from the umem pointer. This avoids casting the error codes from one pointer to another incompatible pointer, and lets gcc figure out when that the data is actually valid whenever we return successfully. Acked-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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- 13 Dec, 2016 29 commits
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Bodong Wang authored
- Add MODIFY_QP_EX CMD to extend modify_qp. - Rate limit will be updated in the following state transactions: RTR2RTS, RTS2RTS. The limit will be removed when SQ is in RST and ERR state. Signed-off-by:
Bodong Wang <bodong@mellanox.com> Reviewed-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Bodong Wang authored
An new uverbs command ib_uverbs_ex_modify_qp is added to support more QP attributes. User driver should choose to call the legacy/extended API based on input mask. IB_USER_LAST_QP_ATTR_MASK is added to indicated the maximum bit position which supports legacy ib_uverbs_modify_qp. IB_USER_LEGACY_LAST_QP_ATTR_MASK indicates the maximum bit position which supports ib_uverbs_ex_modify_qp, the value of this mask should be updated if new mask is added later. Along with this change, rate_limit is supported by the extended command, user driver could use it to control packet packing. Signed-off-by:
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Bodong Wang authored
Add new member rate_limit to ib_qp_attr which holds the packet pacing rate in kbps, 0 means unlimited. IB_QP_RATE_LIMIT is added to ib_attr_mask and could be used by RAW QPs when changing QP state from RTR to RTS, RTS to RTS. Signed-off-by:
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Bodong Wang authored
Enable mlx5 based hardware to report packet pacing capabilities from kernel to user space. Packet pacing allows to limit the rate to any number between the maximum and minimum, based on user settings. The capabilities are exposed to user space through query_device by uhw. The following capabilities are reported: 1. The maximum and minimum rate limit in kbps supported by packet pacing. 2. Bitmap showing which QP types are supported by packet pacing operation. Signed-off-by:
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Or Gerlitz authored
On some environments, such as certain SRIOV VF configurations, RoCE is not supported for mlx5 Ethernet ports. Currently, the driver will not open IB device on that port. This is problematic, since we do want user-space RAW Ethernet (RAW_PACKET QPs) functionality to remain in place. For that end, enhance the relevant driver flows such that we do create a device instance in that case. Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by:
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Or Gerlitz authored
This is a pre-step towards having mlx5 IB device also over Eth ports where RoCE is not supported. We change the roce enable/disable and roce_lag init/fini function names to have _eth instead of _roce. This patch doesn't change any functionality. Signed-off-by:
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Or Gerlitz authored
Refactor the netdev notifier registration into a small helper function. This is a pre-step towards having mlx5 IB device over an Ethernet port which doesn't support RoCE. Also, renamed the de-registration helper and the new helper as netdev notifier and not roce, to make it clear this is not only used with roce. This patch doesn't change any functionality. Signed-off-by:
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Maor Gottlieb authored
The fast_registration length is used to convey length for memory registrations through UMR which can be of any size up to 2^64. Change the length type to be u64. Fixes: 968e78dd ('IB/mlx5: Enhance UMR support to allow partial page table update') Signed-off-by:
Maor Gottlieb <maorg@mellanox.com> Signed-off-by:
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Eli Cohen authored
When enabling many VFs, the total amount of DMA mappings increase significantly. This causes DMA allocations to take a lot of time since they are serialized in the kernel. As a result the driver enters into fatal condition due to timeout and the system hangs. To recover from this we disable MR cache for VFs. PFs will still have a full cache and VFs cache can be manipulated as usual after driver load. Fixes: e126ba97 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
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Maor Gottlieb authored
Move the SRQ type assignment to be before actually using it in create_srq_user() and in create_srq_kernel() functions. Fixes: af1ba291 ('{net, IB}/mlx5: Refactor internal SRQ API') Signed-off-by:
Majd Dibbiny <majd@mellanox.com> Signed-off-by:
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Jack Morgenstein authored
For non-special QPs, the port value becomes non-zero only at the RESET-to-INIT transition. If the QP has not undergone that transition, its port number value is still zero. If such a QP is destroyed before being moved out of the RESET state, subtracting one from the qp port number results in a negative value. Using that negative value as an index into the qp1_proxy array results in an out-of-bounds array reference. Fix this by testing that the QP type is one that uses qp1_proxy before using the port number. For special QPs of all types, the port number is specified at QP creation time. Fixes: 9433c188 ("IB/mlx4: Invoke UPDATE_QP for proxy QP1 on MAC changes") Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
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Moni Shoua authored
Advertise that create_ah and destroy_ah verbs are accessible from uverbs interface. Signed-off-by:
Moni Shoua <monis@mellanox.com> Reviewed-by:
Yishai Hadas <yishaih@mellanox.com> Signed-off-by:
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Moni Shoua authored
Resolving a MAC address for a given IP address in userspace is inefficient. This patch lets mlx5 user driver using the kernel driver to resolve the mac and get the answer in the private section of the response. Signed-off-by:
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Moni Shoua authored
Add struct ib_udata to the signature of create_ah callback that is implemented by IB device drivers. This allows HW drivers to return extra data to the userspace library. This patch prepares the ground for mlx5 driver to resolve destination mac address for a given GID and return it to userspace. This patch was previously submitted by Knut Omang as a part of the patch set to support Oracle's Infiniband HCA (SIF). Signed-off-by:
Knut Omang <knut.omang@oracle.com> Signed-off-by:
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Moni Shoua authored
To make mlx5 user driver aware of whether kernel driver returns dmac in user data response add a new flag that will be returned back to user-space through alloc_ucontext. Signed-off-by:
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Moni Shoua authored
The function ib_resolve_eth_dmac() requires struct qp_attr * and qp_attr_mask as parameters while the function might be useful to resolve dmac for address handles. This patch changes the signature of the function so it can be used in the flow of creating an address handle. Signed-off-by:
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Moses Reuben authored
Add support to match packet fields which are tunneled, i.e. support matching the header of the inner packet which is the result of or bit operation of the original header and the IB_FLOW_SPEC_INNER type. The combination of IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL is not needed to be checked, because the IB core has this check already. Signed-off-by:
Moses Reuben <mosesr@mellanox.com> Reviewed-by:
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Moses Reuben authored
For a tunneled packet which contains external and internal headers, we refer to the external headers as "outer fields" and the internal headers as "inner fields". Example of a tunneled packet: { L2 | L3 | L4 | tunnel header | L2 | L3 | l4 | data } | | | | | | | { outer fields }{ inner fields } This patch introduces a new flag for flow steering rules - IB_FLOW_SPEC_INNER - which specifies that the rule applies to the inner fields, rather than to the outer fields of the packet. Signed-off-by: -
Moses Reuben authored
Add support to receive specific Vxlan packet in ConnectX-4. Signed-off-by:
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Moses Reuben authored
Add ib_uverbs_flow_spec_tunnel to define the rule to match Vxlan, the type, size, reserved fields are identical to rest of the protocols, and are used to identify the spec. The tunnel id is the vni value of the Vxlan protocol, and it is used as part of the steering rule, it is limited by the mask. The steering rule configured on the hardware does a match according to vni and other protocols. In the same way as rest of the protocols that we match, the uniq field's of each protocol are represented on the val and the mask. Signed-off-by:
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Moses Reuben authored
Aligned the structure ib_flow_spec_type indentation, after adding a new definition. Signed-off-by:
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Moses Reuben authored
In order to support tunneling, that can be used by the QP, both struct ib_flow_spec_tunnel and struct ib_flow_tunnel_filter can be used to more IP or UDP based tunneling protocols (e.g NVGRE, GRE, etc). IB_FLOW_SPEC_VXLAN_TUNNEL type flow specification is added to use this functionality and match specific Vxlan packets. In similar to IPv6, we check overflow of the vni value by comparing with the maximum size. Signed-off-by:
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Bodong Wang authored
CQE compressing reduces PCI overhead by coalescing and compressing multiple CQEs into a single merged CQE. Successful compressing improves message rate especially for small packet traffic. CQE compressing is supported for all 64B CQE formats (with certain limitations) generated by RQ/Responder or by SQ/Requestor. Signed-off-by:
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Bodong Wang authored
The capabilities include: - Max number of compressed and aggregated CQEs in a single session, while zero means unsupported. - For Responder, there are two formats of mini CQE: mini CQE with Rx hash and mini CQE with checksum. They're mutual exclusive. Signed-off-by:
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Bodong Wang authored
The capabilities whether hardware support multi packet WQE or not is exposed to user space through query_device by uhw. Signed-off-by:
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Leon Romanovsky authored
Multi packet WQE enables sending multiple fix sized packets using a single WQE. The exposed field reports such HW support. Signed-off-by:
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Yonatan Cohen authored
Increase limit of max CQE from 8K to 32K to allow demanding applications to work over SoftRoCE with same configuration as most RoCEv2 HW vendors have. Fixes: 8700e3e7 ("Soft RoCE driver") Signed-off-by:
Yonatan Cohen <yonatanc@mellanox.com> Reviewed-by:
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Eran Ben Elisha authored
Before reading GRH attributes, need to make sure AH contains GRH, and in addition, initialize GID type. Fixes: dbf727de ('IB/core: Use GID table in AH creation and dmac resolution') Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
Daniel Jurgens <danielj@mellanox.com> Reviewed-by:
Mark Bloch <markb@mellanox.com> Signed-off-by:
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Eran Ben Elisha authored
According to the firmware spec, FLOW_STEERING_IB_UC_QP_RANGE command is supported only if dmfs_ipoib bit is set. If it isn't set we want to ensure allocating NET_IF QPs fail. We do so by filling out the allocation bitmap. By thus, the NET_IF QPs allocating function won't find any free QP and will fail. Fixes: c1c98501 ('IB/mlx4: Add support for steerable IB UD QPs') Signed-off-by:
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- 17 Nov, 2016 10 commits
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Saeed Mahameed authored
Report the correct speed in the port attributes when using a 56Gbps ethernet link. Without this change the field is incorrectly set to 10. Fixes: a9c766bb ('IB/mlx4: Fix info returned when querying IBoE ports') Fixes: 2e96691c ('IB: Use central enum for speed instead of hard-coded values') Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
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Maor Gottlieb authored
Use INT_MAX since this is the max value the attribute can hold, though hardware capability is unlimited. Fixes: 225c7b1f ('IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters') Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
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Jack Morgenstein authored
If OpenSM runs over a ConnectX-3, and there are ConnectX-4 or Connect-IB VFs active on the network, the OpenSM will receive QP1 packets containing a GRH where the destination GID is the "Well-Known GID" -- which is not a GID in the HCA Port's GID Table. This GID must be tested-for separately -- and packets which contain this destination GID should be routed to slave 0 (the PF). Fixes: 37bfc7c1 ('IB/mlx4: SR-IOV multiplex and demultiplex MADs') Signed-off-by:
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Moni Shoua authored
When MAD arrives to the hypervisor, we need to identify which slave it should be sent by destination GID. When L3 protocol is IPv4 the GRH is replaced by an IPv4 header. This patch detects when IPv4 header needs to be parsed instead of GRH. Fixes: b6ffaeff ('mlx4: In RoCE allow guests to have multiple GIDS') Signed-off-by:
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Maor Gottlieb authored
Set traffic class within sl_tclass_flowlabel when create iboe AH. Without this the TOS value will be empty when running VLAN tagged traffic, because the TOS value is taken from the traffic class in the address handle attributes. Fixes: 9106c410 ('IB/mlx4: Fix SL to 802.1Q priority-bits mapping for IBoE') Signed-off-by:
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Kamal Heib authored
Remove the warning print of "can't use of GFP_NOIO" to avoid prints in each QP creation when devices aren't supporting IB_QP_CREATE_USE_GFP_NOIO. This print become more annoying when the IPoIB interface is configured to work in connected mode. Fixes: 09b93088 ('IB: Add a QP creation flag to use GFP_NOIO allocations') Signed-off-by:
Kamal Heib <kamalh@mellanox.com> Signed-off-by:
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Majd Dibbiny authored
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: e126ba97 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by:
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Eli Cohen authored
Add the 512 bytes limit of RDMA READ and the size of remote address to the max SGE calculation. Fixes: e126ba97 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by:
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Eli Cohen authored
Wait before continuing unload till all pending mkey async creation requests are done. Fixes: e126ba97 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by:
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Maor Gottlieb authored
We put INT_MAX since this is the max value that can be held. Though there is no hardware limitation, this is practically a large enough number so we can use it. Fixes: e126ba97 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by:
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