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path: root/drivers/infiniband/hw/hfi1/ud.c
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2017-08-22IB/hfi1: Add 16B UD supportDon Hiatt1-105/+316
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: Add support to process 16B header errorsDon Hiatt1-1/+2
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 Hiatt1-12/+13
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 Hiatt1-3/+1
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>
2017-06-27IB/hfi1,qib: Do not send QKey trap for UD qpsDennis Dalessandro1-25/+12
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 Hiatt1-14/+9
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>
2017-06-27IB/hfi1: Add functions to parse BTH/IB headersDon Hiatt1-3/+3
Improve code readablity by adding inline functions to read specific BTH/IB fields without knowledge of byte offsets. 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>
2017-05-01IB/core: Use rdma_ah_attr accessor functionsDasaratharaman Chandramouli1-24/+27
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 Chandramouli1-2/+2
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: Use defines from common headersDon Hiatt1-1/+1
Move FECN and BECN related defines to common header files 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>
2017-04-28IB/hfi1: Add functions to parse 9B headersDon Hiatt1-8/+6
These inline functions improve code readability by enabling callers to read specific fields from the header without knowledge of byte offsets. 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>
2017-04-28IB/hfi1: Rename hdr2sc to hfi1_9B_get_sc5Dasaratharaman Chandramouli1-1/+1
The function really returned the 5-bit sc value from the header and rhf. hdr2sc didn't quite describe what it did. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-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>
2017-02-19IB/hfi1, rdmavt: Move SGE state helper routines into rdmavtBrian Welty1-2/+2
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 Welty1-6/+6
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, qib, rdmavt: Move two IB event functions into rdmavtBrian Welty1-2/+2
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>
2017-02-19IB/hfi1: Access hfi1_ibport through rcd pointerSebastian Sanchez1-1/+1
Receive code paths use the QP's device and port number to access the struct hfi1_ibport. When an instance of struct hfi1_ctxtdata is present, it can be used to access struct hfi1_ibport through a pointer. This makes struct hfi1_ibport lookup time faster as an array doesn't have to be indexed and access fields in other cache-lines. 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>
2016-12-11IB/hfi1: Remove usage of qp->s_cur_sgeMitko Haralanov1-1/+1
The s_cur_sge field in the qp structure holds a pointer to the SGE of the currently processed WQE. It assumes the protection of the RVT_S_BUSY flag to prevent the changing of this field while the send engine is using it. This scheme works as long as there is only one instance of the send engine running at a time. Scaling of the send engine to multiple cores would break this assumption as there could be multiple instances of the send engine running on different CPUs. This opens a window where the QP's RVT_S_BUSY flag is not set but the send engine is still running. To prevent accidental changing of the s_cur_sge pointer, the QP's dependence on it is removed. The SGE pointer is now stored in the verbs_txreq, which is a per-packet data structure. This ensures that each individual packet has it's own pointer, which is setup while the RVT_S_BUSY flag is set. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@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>
2016-12-11IB/hfi1: Remove dependence on qp->s_cur_sizeDon Hiatt1-1/+1
The qp->s_cur_size field assumes that the S_BUSY bit protects the field from modification after the slock is dropped. Scaling the send engine to multiple cores would break that assumption. Correct the issue by carrying the payload size in the txreq structure. Reviewed-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>
2016-10-02IB/hfi1: Update SMA ingress checks for response packetsJianxin Xiong1-25/+24
Fix "unsupported method" error by skipping ingress pkey checks on response SMA packets. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@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 Marciniszyn1-6/+6
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/qib, IB/hfi1: Fix grh creation in ud loopbackDasaratharaman Chandramouli1-2/+6
Instead of copying the actual GRH of type struct ib_grh, existing code copies the struct ib_global_route into the sge. This patch fixes that and constructs the actual GRH from ib_global_route and copies the GRH into the sge. 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>
2016-08-02IB/hfi1: Cleanup UD packet handler.Dasaratharaman Chandramouli1-30/+21
Cleanup hfi1_ud_rcv to not have to look at the packet header fields multiple times. The fields are looked up once and used throughout the function. Also fix sc computation when validating MAD packets. 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>
2016-08-02IB/hfi1: Rename struct ahg_ib_header to struct hfi1_ahg_infoDasaratharaman Chandramouli1-3/+3
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 Chandramouli1-1/+0
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>
2016-08-02IB/hfi1: Pull FECN/BECN processing to a common placeMitko Haralanov1-23/+1
There were multiple places where FECN/BECN processing was being done for the different types of QPs. All of that code was very similar, which meant that it could be pulled into a single function used by the different QP types. To retain the performance in the fastpath, the common code starts with an inline function, which only calls the slow path if the packet has any of the [FB]ECN bits set. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@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>
2016-07-12IB/hfi1: Correct issues with sc5 computationMike Marciniszyn1-20/+3
There are several computatations of the sc in the ud receive routine. Besides the code duplication, all are wrong when the sc is greater than 15. In that case the code incorrectly or's a 1 into the computed sc instead of 1 shifted left by 4. Fix precomputed sc5 by using an already implemented routine hdr2sc() and deleting flawed duplicated code. Cc: Stable <stable@vger.kernel.org> # 4.6+ 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>
2016-05-26IB/hfi1: Move driver out of stagingDennis Dalessandro1-0/+911
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>
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