- 12 Jun, 2015 12 commits
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Ira Weiny authored
IB and OPA SMPs share the same processing algorithm but have different header formats and permissive LID detection. Add a helper function which is generic to processing DR SMP Send messages which can be used by both IB and OPA SMP code. Use this function in the current IB function smi_handle_dr_smp_send. Signed-off-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Ira Weiny authored
Make a helper function to process Directed Route SMPs to be called by the IB MAD Recv Handler, ib_mad_recv_done_handler. This cleans up the MAD receive handler code a bit and allows for us to better share the SMP processing code between IB and OPA SMPs. IB and OPA SMPs share the same processing algorithm but have different header formats and permissive LID detection. Therefore this and subsequent patches split the common processing code from the IB specific code in anticipation of sharing those algorithms with the OPA code. Signed-off-by:
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Ira Weiny authored
ib_find_send_mad only needs access to the MAD header not the full IB MAD. Change the local variable to ib_mad_hdr and change the corresponding cast. This allows for clean usage of this function with both IB and OPA MADs because OPA MADs carry the same header as IB MADs. Signed-off-by:
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Ira Weiny authored
find_mad_agent only needs read only access to the MAD header. Update the ib_mad pointer to be const ib_mad_hdr. Adjust call tree. Signed-off-by:
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Matan Barak authored
This includes: * support allocation of CQ with the TIMESTAMP_COMPLETION creation flag. * add timestamp_mask and hca_core_clock to query_device, reporting the number of supported timestamp bits (mask) and the hca_core_clock frequency. * return hca core clock's offset in query_device vendor's data, this is needed in order to read the HCA's core clock. Signed-off-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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Matan Barak authored
In order to read the HCA's cycle counter efficiently in user space, we need to map the HCA's register. This is done through mmap call. Signed-off-by:
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Matan Barak authored
Vendors should be able to pass vendor specific data to/from user-space via query_device uverb. In order to do this, we need to pass the vendors' specific udata. Signed-off-by:
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Matan Barak authored
In order to expose timestamp we need to expose two new attributes in query_device to be used for CQ completion time-stamping: timestamp_mask - how many bits are valid in the timestamp, where timestamp values could be 64bits the most. hca_core_clock - timestamp is given in HW cycles, the frequency in KHZ units of the HCA, necessary in order to convert cycles to seconds. This is added both to ib_query_device and its respective uverbs counterpart. Signed-off-by:
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Matan Barak authored
ib_uverbs_ex_create_cq follows the extension verbs mechanism. New features (for example, CQ creation flags field which is added in a downstream patch) could used via user-space libraries without breaking the ABI. Signed-off-by:
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Matan Barak authored
Add CQ creation flag which dictates that the created CQ will report completion time-stamp value in the WC. Signed-off-by:
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Matan Barak authored
Currently, ib_create_cq uses cqe and comp_vecotr instead of the extendible ib_cq_init_attr struct. Earlier patches already changed the vendors to work with ib_cq_init_attr. This patch changes the consumers too. Signed-off-by:
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Matan Barak authored
Add a new ib_cq_init_attr structure which contains the previous cqe (minimum number of CQ entries) and comp_vector (completion vector) in addition to a new flags field. All vendors' create_cq callbacks are changed in order to work with the new API. This commit does not change any functionality. Signed-off-by:
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- 11 Jun, 2015 8 commits
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Hariprasad S authored
Handle this configuration: Queues Per Page * SGE BAR2 Queue Register Area Size > Page Size Use cxgb4_bar2_sge_qregs() to obtain the proper location within the bar2 region for a given qid. Rework the DB and GTS write functions to make use of this bar2 info. Signed-off-by:Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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Hariprasad S authored
Enhance cxgb4_t4_bar2_sge_qregs() and cxgb4_bar2_sge_qregs() to support T4 user mode mappings. Update all the current users as well. Signed-off-by:
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Doug Ledford authored
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Colin Ian King authored
A reorganisation of the PD allocation and deallocation in commit 9ba1377d ("RDMA/ocrdma: Move PD resource management to driver.") introduced a double free on pd, as detected by static analysis by smatch: drivers/infiniband/hw/ocrdma/ocrdma_verbs.c:682 ocrdma_alloc_pd() error: double free of 'pd'^ The original call to ocrdma_mbx_dealloc_pd() (which does not kfree pd) was replaced with a call to _ocrdma_dealloc_pd() (which does kfree pd). The kfree following this call causes the double free, so just remove it to fix the problem. Fixes: 9ba1377d ("RDMA/ocrdma: Move PD resource management to driver.") Signed-off-by:
Colin Ian King <colin.king@canonical.com> Acked-By:
Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by:
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Dan Carpenter authored
This code causes a static checker warning: drivers/infiniband/hw/usnic/usnic_uiom.c:476 usnic_uiom_alloc_pd() warn: passing zero to 'PTR_ERR' This code isn't buggy, but iommu_domain_alloc() doesn't return an error pointer so we can simplify the error handling and silence the static checker warning. The static checker warning is to catch place which do: if (!ptr) return ERR_PTR(ptr); Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Dave Goodell <dgoodell@cisco.com> Signed-off-by:
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Fabian Frederick authored
Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Moni Shoua authored
Registering an event handler is done for a device. This device may have one RoCE port (no SA cap) and one InfiniBand port (has SA cap). Therefore, warning from the event handler about a specific port that doesn't have SA cap is correct but pollutes the kernel log without a need. Signed-off-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
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Moni Shoua authored
The Subnet Administrator (SA) is not a component of the RoCE spec. Therefore, it should not be a capability of a RoCE port. Signed-off-by:
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- 02 Jun, 2015 10 commits
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Doug Ledford authored
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Ira Weiny authored
In order to support constant callers of agent_send_response we add const specifiers to the its pointer arguments. Adjust the call tree accordingly. Signed-off-by:
Hal Rosenstock <hal@mellanox.com> Reviewed-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by:
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Ira Weiny authored
The process_mad device function declares some parameters as "in". Make those parameters const and adjust the call tree under process_mad in the various drivers accordingly. Signed-off-by:
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Ira Weiny authored
The ib_device passed to the new RDMA helpers is constant. Declare the ib_device as const in the following functions. rdma_protocol_ib rdma_protocol_roce rdma_protocol_iwarp rdma_ib_or_roce rdma_cap_ib_mad rdma_cap_ib_smi rdma_cap_ib_cm rdma_cap_iw_cm rdma_cap_ib_sa rdma_cap_ib_mcast rdma_cap_af_ib rdma_cap_eth_ah Signed-off-by:
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Roland Dreier authored
The unwinding clean up code are err_create_flow starts at the current index i. That means we shouldn't increment i until we're really sure we won't have to destroy the current flow; otherwise we might increment the index, fail inside an is_bonded block, and end up accessing off the end of the reg_id[] array. This was detected by Coverity (CID 1271229). Signed-off-by:
Roland Dreier <roland@purestorage.com> Signed-off-by:
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Roland Dreier authored
If ocrdma_get_pd_num() fails, then we need to free the pd struct we allocated. This was detected by Coverity (CID 1271245). Signed-off-by:
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Wengang Wang authored
The BUG_ON at line 452/453 is triggered in function rds_send_xmit. 441 while (ret) { 442 tmp = min_t(int, ret, sg->length - 443 conn->c_xmit_data_off); 444 conn->c_xmit_data_off += tmp; 445 ret -= tmp; 446 if (conn->c_xmit_data_off == sg->length) { 447 conn->c_xmit_data_off = 0; 448 sg++; 449 conn->c_xmit_sg++; 450 if (ret != 0 && conn->c_xmit_sg == rm->data.op_nents) 451 printk(KERN_ERR "conn %p rm %p sg %p ret %d\n", conn, rm, sg, ret); 452 BUG_ON(ret != 0 && 453 conn->c_xmit_sg == rm->data.op_nents); 454 } 455 } it is complaining the total sent length is bigger that we want to send. rds_ib_xmit() is wrong for the second entry for the same rds_message returning wrong value. the sg and off passed by rds_send_xmit to rds_ib_xmit is based on scatterlist.offset/length, but the rds_ib_xmit action is based on scatterlist.dma_address/dma_length. in case dma_length is larger than length there is problem. for the 2nd and later entries of rds_ib_xmit for same rds_message, at least one of the following two is wrong: 1) the scatterlist to start with, the choosen one can far beyond the correct one. 2) the offset to start with within the scatterlist. fix: add op_dmasg and op_dmaoff to rm_data_op structure indicating the scatterlist and offset within the it to start with for rds_ib_xmit respectively. op_dmasg and op_dmaoff are initialized to zero when doing dma mapping for the first see of the message and are changed when filling send slots. the same applies to rds_iw_xmit too. Signed-off-by:Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by:
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Bart Van Assche authored
Avoid that sparse complains about ipoib_neigh_hash_init(). This patch does not change any functionality. See also patch "IPoIB: Fix memory leak in the neigh table deletion flow" (commit ID 66172c09). Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by:
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Faisal Latif authored
RDMA/nes: Enable the use of the tos field in the nes driver Signed-off-by:
Faisal Latif <Faisal.Latif@intel.com> Signed-off-by:
Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by:
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Steve Wise authored
rdma-cma/iw_cm: Export tos field to iwarp providers Signed-off-by:
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- 20 May, 2015 10 commits
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Doug Ledford authored
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Ira Weiny authored
After discussion upstream, it was agreed to transition the usage of iboe in the kernel to roce. This keeps our terminology consistent with what was finalized in the IBTA Annex 16 and IBTA Annex 17 publications. Signed-off-by:
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Ira Weiny authored
Remove query_protocol callback Use the new Core Capability bits for: rdma_protocol_* rdma_cap_ib_mad rdma_cap_ib_smi rdma_cap_ib_cm rdma_cap_iw_cm rdma_cap_ib_sa rdma_cap_ib_mcast rdma_cap_af_ib rdma_cap_eth_ah Signed-off-by:
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Ira Weiny authored
As of commit 5eb620c8 "IB/core: Add helpers for uncached GID and P_Key searches"; pkey_tbl_len and gid_tbl_len are immutable data which are stored in the ib_device. The per port core capability flags to be added later are also immutable data to be stored in the ib_device object. In preparation for this create a structure for per port immutable data and place the pkey and gid table lengths within this structure. "get_port_immutable" is added as a mandatory device function to allow the drivers to fill in this data. Signed-off-by:
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Ira Weiny authored
The addition of the rdma_cap_ib_mad is technically broken in ib_umad_remove_one because the loop "i" value is not a port value. This bug resulted in the ib_umad failing to properly remove its resources when the core capability functions were converted to bit fields. NOTE: e17371d73908 did not result in broken behavior on its own. It was only an issue when the implementation of rdma_cap_ib_mad was changed. Pass the port value to rdma_cap_ib_mad. Fixes: e17371d73908 ("IB/Verbs: Use management helper rdma_cap_ib_mad()") Signed-off-by: -
Ira Weiny authored
Use the new common rdma_[start|end]_port functions instead of using local variables and figuring it out on the fly. Signed-off-by:
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Ira Weiny authored
The following functions only need read access to the data passed to them. ib_mad_kernel_rmpp_agent is_rmpp_data_mad rcv_has_same_gid ib_find_send_mad Clarify with const specifiers Signed-off-by:
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Ira Weiny authored
rcv_has_same_class only needs access to the MAD header specify WR and Receive WC as const Reviewed-By:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
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Ira Weiny authored
ib_response_mad only needs read access to the MAD header, not write access to the entire mad struct, so replace struct ib_mad with const struct ib_mad_hdr Reviewed-By:
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Ira Weiny authored
validate_mad only needs read access to the MAD header, not write access to the entire mad struct, so replace struct ib_mad with const struct ib_mad_hdr Reviewed-By:
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