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path: root/drivers/infiniband/hw/hfi1/verbs.h
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2018-05-24IB/hfi1: Define 16B Management PacketsDon Hiatt
Add 16B Management Packet definition. This optimized packet format replaces the ib_other_headers and BTH with a source and destination QP number. To support these packets we introduce struct opa_16b_mgmt into the struct hfi1_16b_header. This packet format is only used for MAD packets using the IB_OPCODE_UD_SEND_ONLY opcode on QP0/1. The original 16B implementation failed to use 16B management packets so now we add their definition. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09IB/{hfi1, qib, rdmavt}: Move logic to allocate receive WQE into rdmavtBrian Welty
Moving receive-side WQE allocation logic into rdmavt will allow further code reuse between qib and hfi1 drivers. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-05-09IB/hfi1: Rework fault injection machineryMitko Haralanov
The packet fault injection code present in the HFI1 driver had some issues which not only fragment the code but also created user confusion. Furthermore, it suffered from the following issues: 1. The fault_packet method only worked for received packets. This meant that the only fault injection mode available for sent packets is fault_opcode, which did not allow for random packet drops on all egressing packets. 2. The mask available for the fault_opcode mode did not really work due to the fact that the opcode values are not bits in a bitmask but rather sequential integer values. Creating a opcode/mask pair that would successfully capture a set of packets was nearly impossible. 3. The code was fragmented and used too many debugfs entries to operate and control. This was confusing to users. 4. It did not allow filtering fault injection on a per direction basis - egress vs. ingress. In order to improve or fix the above issues, the following changes have been made: 1. The fault injection methods have been combined into a single fault injection facility. As such, the fault injection has been plugged into both the send and receive code paths. Regardless of method used the fault injection will operate on both egress and ingress packets. 2. The type of fault injection - by packet or by opcode - is now controlled by changing the boolean value of the file "opcode_mode". When the value is set to True, fault injection is done by opcode. Otherwise, by packet. 2. The masking ability has been removed in favor of a bitmap that holds opcodes of interest (one bit per opcode, a total of 256 bits). This works in tandem with the "opcode_mode" value. When the value of "opcode_mode" is False, this bitmap is ignored. When the value is True, the bitmap lists all opcodes to be considered for fault injection. By default, the bitmap is empty. When the user wants to filter by opcode, the user sets the corresponding bit in the bitmap by echo'ing the bit position into the 'opcodes' file. This gets around the issue that the set of opcodes does not lend itself to effective masks and allow for extremely fine-grained filtering by opcode. 4. fault_packet and fault_opcode methods have been combined. Hence, there is only one debugfs directory controlling the entire operation of the fault injection machinery. This reduces the number of debugfs entries and provides a more unified user experience. 5. A new control files - "direction" - is provided to allow the user to control the direction of packets, which are subject to fault injection. 6. A new control file - "skip_usec" - is added that would allow the user to specify a "timeout" during which no fault injection will occur. In addition, the following bug fixes have been applied: 1. The fault injection code has been split into its own header and source files. This was done to better organize the code and support conditional compilation without littering the code with #ifdef's. 2. The method by which the TX PIO packets were being marked for drop conflicted with the way send contexts were being setup. As a result, the send context was repeatedly being reset. 3. The fault injection only makes sense when the user can control it through the debugfs entries. However, a kernel configuration can enable fault injection but keep fault injection debugfs entries disabled. Therefore, it makes sense that the HFI fault injection code depends on both. 4. Error suppression did not take into account the method by which PIO packets were being dropped. Therefore, even with error suppression turned on, errors would still be displayed to the screen. A larger enough packet drop percentage would case the kernel to crash because the driver would be stuck printing errors. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-02-01IB/hfi1: Remove blind constants from 16B updateMike Marciniszyn
These values were introduced as part of the 16B code to account for the varying size of the LRH between the differing packet formats. Replace the blind constants with defines based on FIELD_SIZEOF() calls. Fixes: 5b6cabb0db77 ("IB/hfi1: Add 16B RC/UC support") Reviewed-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-02-01IB/hfi1: Look up ibport using a pointer in receive pathSebastian Sanchez
In the receive path, hfi1_ibport is looked up by indexing into an array. A profile shows this to be expensive. The receive context data has a pointer to the ibport data, use that pointer instead. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-02-01IB/hfi1: Optimize packet type comparison using 9B and bypass code pathsSebastian Sanchez
The packet type comparison used to find out if a packet is a bypass packet in the hot path is an expensive operation as seen in a profile. Determine packet's pkey and migration bit through the bypass and 9B code paths instead. Reviewed-by: Don Hiatt <don.hiatt@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-02-01IB/hfi1: Remove dependence on qp->s_hdrwordsMitko Haralanov
The s_hdrwords variable was used to indicate whether a packet was already built on a previous iteration of the send engine. This variable assumed the protection of the QP's RVT_S_BUSY flag, which was required since the the QP's s_lock was dropped just prior to the packet being queued on the one of the egress mechanisms. Support for multiple send engine instantiations require that the field not be used due to concurency issues. The ps.txreq signals the "already built" without the potential concurency issues. Fix by getting rid of all s_hdrword usage. A wrapper is added to test for the already built case that used to use s_hdrwords. What used to be stored in s_hdrwords is now in the txreq. The PBC is not counted, but is added in the pio/sdma code paths prior to posting the packet. Reviewed-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-08-22IB/hfi1: Remove HFI1_VERBS_31BIT_PSN optionGrzegorz Morys
Remove HFI1_VERBS_31BIT_PSN Kconfig option leaving only 31-bit PSNs available. The option was implemented in the early days of the driver and is no longer needed. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Grzegorz Morys <grzegorz.morys@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Enhance PIO/SDMA send for 16BDon Hiatt
PIO/SDMA send logic now uses the hdr_type field to determine the type of packet that has been constructed. Based on the hdr_type, certain things such as PBC flags, padding count and the LT extra trailing bytes are determined. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add 16B RC/UC supportDon Hiatt
Add 16B bypass packet support for RC/UC traffic types. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/rdmavt, hfi1, qib: Enhance rdmavt and hfi1 to use 32 bit lidsDasaratharaman Chandramouli
Increase lid used in hfi1 driver to 32 bits. qib continues to use 16 bit lids. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add 16B UD supportDon Hiatt
Add 16B bypass packet support for UD traffic types. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Determine 9B/16B L2 header type based on Address handleDon Hiatt
When address handle attributes are initialized, the LIDs are transformed to be in the 32 bit LID space. When constructing the header, hfi1 driver will look at the LID to determine the packet header to be created. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add support to process 16B header errorsDon Hiatt
Enhance hdr_rcverr() to also handle errors during 16B bypass packet receive. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add support to send 16B bypass packetsDon Hiatt
We introduce struct hfi1_opa_header as a union of ib (9B) and 16B headers. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add support to receive 16B bypass packetsDon Hiatt
We introduce a struct hfi1_16b_header to support 16B headers. 16B bypass packets are received by the driver and processed similar to 9B packets. Add basic support to handle 16B packets. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-07-31IB/hfi1: Serve the most starved iowait entry firstKaike Wan
When an egress resource(SDMA descriptors, pio credits) is not available, a sending thread will be put on the resource's wait queue. When the resource becomes available again, up to a fixed number of sending threads can be awakened sequentially and removed from the wait queue, depending on the number of waiting threads and the number of free resources. Since each awakened sending thread will send as many packets as possible, it is highly likely that the first sending thread will consume all the egress resources. Subsequently, it will be put back to the end of the wait queue. Depending on the timing when the later sending threads wake up, they may not be able to send any packet and be again put back to the end of the wait queue sequentially, right behind the first sending thread. This starvation cycle continues until some sending threads exceed their retry limit and consequently fail. This patch fixes the issue by two simple approaches: (1) Any starved sending thread will be put to the head of the wait queue while a served sending thread will be put to the tail; (2) The most starved sending thread will be served first. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-27IB/hfi1,qib: Do not send QKey trap for UD qpsDennis Dalessandro
According to IBTA spec a QKey violation should not result in a bad qkey trap being triggered for UD queue pairs. Also since it is a silent error we do not increment the q_key violation or the dropped packet counters. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-27IB/hfi1: Setup common IB fields in hfi1_packet structDon Hiatt
We move many common IB fields into the hfi1_packet structure and set them up in a single function. This allows us to set the fields in a single place and not deal with them throughout the driver. Reviewed-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-04IB/hfi1: Fix yield logic in send engineMike Marciniszyn
When there are many RC QPs and an RDMA READ request is sent, timeouts occur on the requester side because of fairness among RC QPs on their relative SDMA engine on the responder side. This also hits write and send, but to a lesser extent. Complicating the issue is that the current code checks if workqueue is congested before scheduling other QPs, however, this check is based on the number of active entries in the workqueue, which was found to be too big to for workqueue_congested() to be effective. Fix by reducing the number of active entries as revealed by experimentation from the default of num_sdma to HFI1_MAX_ACTIVE_WORKQUEUE_ENTRIES. Retry counts were monitored to determine the correct value. Tracing to investigate any future issues is also added. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-04IB/hfi1, IB/rdmavt: Move r_adefered to r_lock cache lineMike Marciniszyn
This field is causing excessive cache line bouncing. There are spare bytes in the r_lock cache line so the best approach is to make an rvt QP field and remove from the hfi1 priv field. Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-01IB/core: Use rdma_ah_attr accessor functionsDasaratharaman Chandramouli
Modify core and driver components to use accessor functions introduced to access individual fields of rdma_ah_attr Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-01IB/core: Rename struct ib_ah_attr to rdma_ah_attrDasaratharaman Chandramouli
This patch simply renames struct ib_ah_attr to rdma_ah_attr as these fields specify attributes that are not necessarily specific to IB. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-28IB/hfi1: Prevent kernel QP post send hard lockupsMike Marciniszyn
The driver progress routines can call cond_resched() when a timeslice is exhausted and irqs are enabled. If the ULP had been holding a spin lock without disabling irqs and the post send directly called the progress routine, the cond_resched() could yield allowing another thread from the same ULP to deadlock on that same lock. Correct by replacing the current hfi1_do_send() calldown with a unique one for post send and adding an argument to hfi1_do_send() to indicate that the send engine is running in a thread. If the routine is not running in a thread, avoid calling cond_resched(). CC: <stable@vger.kernel.org> # 4.7.x- Fixes: Commit 831464ce4b74 ("IB/hfi1: Don't call cond_resched in atomic mode when sending packets") Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-05IB/hfi1: Add transmit fault injection featureDon Hiatt
Add ability to fault packets on transmit by opcode. Dropping by packet can be achieved by setting the mask to 0. In order to drop non-verbs traffic we set PbcInsertHrc to NONE (0x2). The packet will still be delivered to the receiving node but a KHdrHCRCErr (KDETH packet with a bad HCRC) will be triggered and the packet will not be delivered to the correct context. In order to drop regular verbs traffic we set the PbcTestEbp flag. The packet will still be delivered to the receiving node but a 'late ebp error' will be triggered and will be dropped. A global toggle (/sys/kernel/debug/hfi1/hfi1_X/fault_suppress_err) has been added to suppress the error messages on the receive node when a packet was faulted on the sending node. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-05IB/hfi1: Add receive fault injection featureDon Hiatt
Add fault injection capability: - Drop packets unconditionally (fault_by_packet) - Drop packets based on opcode (fault_by_opcode) This feature reacts to the global FAULT_INJECTION config flag. The faulting traces have been added: - misc/fault_opcode - misc/fault_packet See 'Documentation/fault-injection/fault-injection.txt' for details. Examples: - Dropping packets by opcode: /sys/kernel/debug/hfi1/hfi1_X/fault_opcode # Enable fault echo Y > fault_by_opcode # Setprobability of dropping (0-100%) # echo 25 > probability # Set opcode echo 0x64 > opcode # Number of times to fault echo 3 > times # An optional mask allows you to fault # a range of opcodes echo 0xf0 > mask /sys/kernel/debug/hfi1/hfi1_X/fault_stats contains a value in parentheses to indicate number of each opcode dropped. - Dropping packets unconditionally /sys/kernel/debug/hfi1/hfi1_X/fault_packet # Enable fault echo Y > fault_by_packet /sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats contains the number of packets dropped. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, rdmavt: Move SGE state helper routines into rdmavtBrian Welty
To improve code reuse, add small SGE state helper routines to rdmavt_mr.h. Leverage these in hfi1, including refactoring of hfi1_copy_sge. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, rdmavt: Update copy_sge to use boolean argumentsBrian Welty
Convert copy_sge and related SGE state functions to use boolean. For determining if QP is in user mode, add helper function in rdmavt_qp.h. This is used to determine if QP needs the last byte ordering. While here, change rvt_pd.user to a boolean. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1: Use new rdmavt timersVenkata Sandeep Dhanalakota
Reduce hfi1 code footprint by using the rdmavt timers. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, qib, rdmavt: Move AETH credit functions into rdmavtBrian Welty
Add rvt_compute_aeth() and rvt_get_credit() as shared functions in rdmavt, moved from hfi1/qib logic. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, qib, rdmavt: Move two IB event functions into rdmavtBrian Welty
Add rvt_rc_error() and rvt_comm_est() as shared functions in rdmavt, moved from hfi1/qib logic. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-11-15IB/hfi1: Unify access to GUID entriesJakub Pawlak
This patch consolidates the node GUIDs and the port GUID handling and unifies access to these items. The knowledge of hfi1 GUIDs' design and their location are kept in accessors to centralize access. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-11-15IB/hfi1: Add unique txwait_lock for txreq eventsMike Marciniszyn
Profiling suggests that the read_seqbegin() in the txreq put logic is colliding with other uses of the iowait lock. The packet at a time use of this lock dictates a unique lock to avoid reader/writer collisions when the number of vTxWait events is low. In order to support a unique lock the iowait struct embedded in the QP is extended to remember the lock that protects the queue head. The QP destroy removes that QP from any wait list. It doesn't need to know the head because of the linked list API, but it does need to know the lock required to protect the head. This also opens up the wait logic to have unique per resources locks which needs to be in future refinement. Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-02IB/hfi1: Consolidate pio control masks into single definitionMike Marciniszyn
This allows for adding additional pages of adaptive pio opcode control including manufacturer specific ones. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-02IB/qib,IB/hfi: Use core common header fileMike Marciniszyn
Use common header file structs, defines, and accessors in the drivers. The old declarations are removed. The repositioning of the includes allows for the removal of hfi1_message_header and replaces its use with ib_header. Also corrected are two issues with set_armed_to_active(): - The "packet" parameter is now a pointer as it should have been - The etype is validated to insure that the header is correct Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-02IB/hfi1: Rename hfi1_pio_header to hfi1_sdma_header.Don Hiatt
hfi1_pio_header should really be called hfi1_sdma_header as it is only used for sdma transmits. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-02IB/hfi1: Rename struct ahg_ib_header to struct hfi1_ahg_infoDasaratharaman Chandramouli
struct ahg_ib_header has no header specific information. Rename it to struct hfi1_ahg_info Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-02IB/hfi1: Remove unused elements from struct ahg_ib_headerDasaratharaman Chandramouli
sde and hfi1_ib_header are not used anymore. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-26IB/hfi1, qib: Add ieth to the packet header definitionsJianxin Xiong
A new union member "ieth" (Invalidate Extended Transport Header) is added to the packet header definition in preparation of supporting the send with invalidate opcode. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-26IB/hfi1: Move driver out of stagingDennis Dalessandro
The TODO list for the hfi1 driver was completed during 4.6. In addition other objections raised (which are far beyond what was in the TODO list) have been addressed as well. It is now time to remove the driver from staging and into the drivers/infiniband sub-tree. Reviewed-by: Jubin John <jubin.john@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>