Cheng Xu
54d8fffc2a
RDMA/erdma: Implement the lifecycle of reflushing work for each QP
...
Each QP has a work for reflushing purpose. In the work, driver will report
the latest pi to hardware.
Link: https://lore.kernel.org/r/20221116023107.82835-3-chengyou@linux.alibaba.com
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com >
2022-11-24 14:58:52 -04:00
Cheng Xu
0ca9c2e284
RDMA/erdma: Implement atomic operations support
...
Add atomic operations support in post_send and poll_cq implementation.
Also, rename 'laddr' and 'lkey' in struct erdma_sge to 'addr' and 'key',
because this structure is used for both local and remote SGEs.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Link: https://lore.kernel.org/r/20221107021845.44598-4-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org >
2022-11-07 09:55:04 +02:00
Cheng Xu
71c6925f28
RDMA/erdma: Report atomic capacity when hardware supports atomic feature
...
Introduce "capacity flags" field at where hardware put all zeros originally
in "query device" response. Using this field, hardware can report atomic
feature if supports.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Link: https://lore.kernel.org/r/20221107021845.44598-3-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org >
2022-11-07 09:55:04 +02:00
Cheng Xu
ece43fad22
RDMA/erdma: Extend access right field of FRMR and REG MR to support atomic
...
To support atomic operations, IB_ACCESS_REMOTE_ATOMIC right should be
passed to hardware for permission check. Since "access mode" field in FRMR
SQE and RegMr command is never used by hw, we remove the "access mode"
field, so that we can then have enough space to extend access fields.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Link: https://lore.kernel.org/r/20221107021845.44598-2-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org >
2022-11-07 09:55:04 +02:00
Cheng Xu
9bdb9350f3
RDMA/erdma: Support dynamic mtu
...
Hardware now support jumbo frame for RDMA. So we introduce a new CMDQ
message to support mtu change notification.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Link: https://lore.kernel.org/r/20220909093822.33868-5-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org >
2022-09-21 10:31:24 +03:00
Cheng Xu
13f42e5166
RDMA/erdma: Make hardware internal opcodes invisible to driver
...
Some opcodes are used in hardware internally, and driver does not care
about them. So, we change them to reserved opcodes in driver.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Link: https://lore.kernel.org/r/20220909093822.33868-4-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org >
2022-09-20 14:27:51 +03:00
Cheng Xu
be3cff0f24
RDMA/erdma: Add the hardware related definitions
...
ERDMA is a PCIe device, and this file provides ERDMA hardware related
definitions, mainly including PCIe device capabilities and restrictions,
device registers definitions, doorbell space, doorbell structure
definitions and WQE definitions.
Link: https://lore.kernel.org/r/20220727014927.76564-3-chengyou@linux.alibaba.com
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com >
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com >
2022-07-27 15:54:38 -03:00
