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The opcode written by HW, in the RQ CQE, is the
RoCEv2/iWARP protocol opcode from the received
packet and not the SW opcode as currently assumed.
Fix this by returning the raw operation type and
queue type in the CQE to irdma_process_cqe and add
2 helpers set_ib_wc_op_sq set_ib_wc_op_rq to map
IRDMA HW op types to IB op types.
Note that for iWARP, only Write with Immediate is
supported so the opcode can only be IB_WC_RECV_RDMA_WITH_IMM
when there is immediate data present.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20221115011701.1379-3-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
HW flushes after QP in error state is not reliable. This can lead to
application hang waiting on a completion for outstanding WRs. Implement a
SW mechanism to generate completions for any outstanding WR's after the QP
is modified to error.
This is accomplished by starting a delayed worker after the QP is modified
to error and the HW flush is performed. The worker will generate
completions that will be returned to the application when it polls the
CQ. This mechanism only applies to Kernel applications.
Link: https://lore.kernel.org/r/20220425181624.1617-1-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Address handles (AH) are a limited HW resource and some user applications
may create large numbers of identical AH's. Avoid running out of AH's by
reusing existing identical ones.
Link: https://lore.kernel.org/r/20220228183650.290-1-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Firstly the variable saddr was to check the type of a network. Now the
variable net_type is used to do the same work. So it is removed.
Link: https://lore.kernel.org/r/20220223024252.3873736-3-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Completion events (CEs) are lost if the application is allowed to arm the
CQ more than two times when no new CE for this CQ has been generated by
the HW.
Check if arming has been done for the CQ and if not, arm the CQ for any
event otherwise promote to arm the CQ for any event only when the last arm
event was solicited.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Link: https://lore.kernel.org/r/20211201231509.1930-2-shiraz.saleem@intel.com
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Implement device supported verb APIs. The supported APIs
vary based on the underlying transport the ibdev is
registered as (i.e. iWARP or RoCEv2).
Link: https://lore.kernel.org/r/20210602205138.889-10-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
