Commit Graph

68 Commits

Author SHA1 Message Date
Kalesh AP
7788278ff2 RDMA/bnxt_re: Use macro instead of hard coded value
1. Defined a macro for the hard coded value.
2. "access" field in the request structure is of type "u8".
   Updated the mask accordingly.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Shravya KN <shravya.k-n@broadcom.com>
Link: https://patch.msgid.link/20250704043857.19158-4-kalesh-anakkur.purayil@broadcom.com
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-07-07 01:37:35 -04:00
Ajit Khaparde
260ce16e57 RDMA/bnxt_re: Support extended stats for Thor2 VF
The driver currently checks if the user is querying VF RoCE statistics.
It will not send the query_roce_stats_ext HWRM command if it is for a
VF. But Thor2 VF can support extended statistics.
Allow query of extended stats for Thor2 VFs.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Shravya KN <shravya.k-n@broadcom.com>
Link: https://patch.msgid.link/20250523075952.1267827-1-kalesh-anakkur.purayil@broadcom.com
Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-05-25 06:24:21 -04:00
Preethi G
e8e6087c2f RDMA/bnxt_re: Fix reporting maximum SRQs on P7 chips
Firmware reports support for additional SRQs in the max_srq_ext field.
In CREQ_QUERY_FUNC response, if MAX_SRQ_EXTENDED flag is set, driver
should derive the total number of max SRQs by the summation of
"max_srq" and "max_srq_ext" fields.

Fixes: b1b66ae094 ("bnxt_en: Use FW defined resource limits for RoCE")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Preethi G <preethi.gurusiddalingeswaraswamy@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1741021178-2569-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-03-03 14:18:04 -05:00
Linus Torvalds
0afd22092d RDMA v6.14 merge window pull request
Lighter that normal, but the now usual collection of driver fixes and
 small improvements:
 
 - Small fixes and minor improvements to cxgb4, bnxt_re, rxe, srp, efa,
   cxgb4
 
 - Update mlx4 to use the new umem APIs, avoiding direct use of scatterlist
 
 - Support ROCEv2 in erdma
 
 - Remove various uncalled functions, constify bin_attribute
 
 - Provide core infrastructure to catch netdev events and route them to
   drivers, consolidating duplicated driver code
 
 - Fix rare race condition crashes in mlx5 ODP flows
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Lighter that normal, but the now usual collection of driver fixes and
  small improvements:

   - Small fixes and minor improvements to cxgb4, bnxt_re, rxe, srp,
     efa, cxgb4

   - Update mlx4 to use the new umem APIs, avoiding direct use of
     scatterlist

   - Support ROCEv2 in erdma

   - Remove various uncalled functions, constify bin_attribute

   - Provide core infrastructure to catch netdev events and route them
     to drivers, consolidating duplicated driver code

   - Fix rare race condition crashes in mlx5 ODP flows"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (63 commits)
  RDMA/mlx5: Fix implicit ODP use after free
  RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error
  RDMA/qib: Constify 'struct bin_attribute'
  RDMA/hfi1: Constify 'struct bin_attribute'
  RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
  RDMA/cxgb4: Notify rdma stack for IB_EVENT_QP_LAST_WQE_REACHED event
  RDMA/bnxt_re: Allocate dev_attr information dynamically
  RDMA/bnxt_re: Pass the context for ulp_irq_stop
  RDMA/bnxt_re: Add support to handle DCB_CONFIG_CHANGE event
  RDMA/bnxt_re: Query firmware defaults of CC params during probe
  RDMA/bnxt_re: Add Async event handling support
  bnxt_en: Add ULP call to notify async events
  RDMA/mlx5: Fix indirect mkey ODP page count
  MAINTAINERS: Update the bnxt_re maintainers
  RDMA/hns: Clean up the legacy CONFIG_INFINIBAND_HNS
  RDMA/rtrs: Add missing deinit() call
  RDMA/efa: Align interrupt related fields to same type
  RDMA/bnxt_re: Fix to drop reference to the mmap entry in case of error
  RDMA/mlx5: Fix link status down event for MPV
  RDMA/erdma: Support create_ah/destroy_ah in non-sleepable contexts
  ...
2025-01-24 12:21:28 -08:00
Kalesh AP
9264cd6aa8 RDMA/bnxt_re: Allocate dev_attr information dynamically
In order to optimize the size of driver private structure,
the memory for dev_attr is allocated dynamically during the
chip context initialization. In order to make certain runtime
decisions, store dev_attr in the qplib_res structure.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1736446693-6692-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-01-14 06:22:10 -05:00
Kalesh AP
c0ad30eddc RDMA/bnxt_re: Query firmware defaults of CC params during probe
Added function to query firmware default values of CC parameters
during driver init. These values will be stored in driver local
structure and used in subsequent patch.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-4-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-01-14 04:08:14 -05:00
Damodharam Ammepalli
d13be54dc1 RDMA/bnxt_re: Add send queue size check for variable wqe
For the fixed WQE case, HW supports 0xFFFF WQEs.
For variable Size WQEs, HW treats this number as
the 16 bytes slots. The maximum supported WQEs
needs to be adjusted based on the number of slots.
Set a maximum WQE limit for variable WQE scenario.

Fixes: de1d364c38 ("RDMA/bnxt_re: Add support for Variable WQE in Genp7 adapters")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241217102649.1377704-4-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-12-19 06:57:19 -05:00
Kalesh AP
d5a38bf2f3 RDMA/bnxt_re: Disable use of reserved wqes
Disabling the reserved wqes logic for Gen P5/P7 devices
because this workaround is required only for legacy devices.

Fixes: ecb53febfc ("RDMA/bnxt_en: Enable RDMA driver support for 57500 chip")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241217102649.1377704-3-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-12-19 06:57:19 -05:00
Selvin Xavier
40be32303e RDMA/bnxt_re: Fix max_qp_wrs reported
While creating qps, driver adds one extra entry to the sq size
passed by the ULPs in order to avoid queue full condition.
When ULPs creates QPs with max_qp_wr reported, driver creates
QP with 1 more than the max_wqes supported by HW. Create QP fails
in this case. To avoid this error, reduce 1 entry in max_qp_wqes
and report it to the stack.

Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241217102649.1377704-2-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-12-19 06:57:19 -05:00
Linus Torvalds
2a163a4cea RDMA v6.13 merge window pull request
Seveal fixes scattered across the drivers and a few new features:
 
 - Minor updates and bug fixes to hfi1, efa, iopob, bnxt, hns
 
 - Force disassociate the userspace FD when hns does an async reset
 
 - bnxt new features for optimized modify QP to skip certain stayes, CQ
   coalescing, better debug dumping
 
 - mlx5 new data placement ordering feature
 
 - Faster destruction of mlx5 devx HW objects
 
 - Improvements to RDMA CM mad handling
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Seveal fixes scattered across the drivers and a few new features:

   - Minor updates and bug fixes to hfi1, efa, iopob, bnxt, hns

   - Force disassociate the userspace FD when hns does an async reset

   - bnxt new features for optimized modify QP to skip certain stayes,
     CQ coalescing, better debug dumping

   - mlx5 new data placement ordering feature

   - Faster destruction of mlx5 devx HW objects

   - Improvements to RDMA CM mad handling"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (51 commits)
  RDMA/bnxt_re: Correct the sequence of device suspend
  RDMA/bnxt_re: Use the default mode of congestion control
  RDMA/bnxt_re: Support different traffic class
  IB/cm: Rework sending DREQ when destroying a cm_id
  IB/cm: Do not hold reference on cm_id unless needed
  IB/cm: Explicitly mark if a response MAD is a retransmission
  RDMA/mlx5: Move events notifier registration to be after device registration
  RDMA/bnxt_re: Cache MSIx info to a local structure
  RDMA/bnxt_re: Refurbish CQ to NQ hash calculation
  RDMA/bnxt_re: Refactor NQ allocation
  RDMA/bnxt_re: Fail probe early when not enough MSI-x vectors are reserved
  RDMA/hns: Fix different dgids mapping to the same dip_idx
  RDMA/bnxt_re: Add set_func_resources support for P5/P7 adapters
  RDMA/bnxt_re: Enhance RoCE SRIOV resource configuration design
  bnxt_en: Add support for RoCE sriov configuration
  RDMA/hns: Fix NULL pointer derefernce in hns_roce_map_mr_sg()
  RDMA/hns: Fix out-of-order issue of requester when setting FENCE
  RDMA/nldev: Add IB device and net device rename events
  RDMA/mlx5: Add implementation for ufile_hw_cleanup device operation
  RDMA/core: Move ib_uverbs_file struct to uverbs_types.h
  ...
2024-11-22 20:03:57 -08:00
Kashyap Desai
3b72946bdf RDMA/bnxt_re: Add support for querying HW contexts
Implements support for querying the hardware resource
contexts. This raw data can be used for the debugging
of the field issues.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1730428483-17841-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-11-04 06:53:06 -05:00
Kalesh AP
dc5006cfcf RDMA/bnxt_re: Fix the GID table length
GID table length is reported by FW. The gid index which is passed to the
driver during modify_qp/create_ah is restricted by the sgid_index field of
struct ib_global_route.  sgid_index is u8 and the max sgid possible is
256.

Each GID entry in HW will have 2 GID entries in the kernel gid table.  So
we can support twice the gid table size reported by FW. Also, restrict the
max GID to 256 also.

Fixes: 847b97887e ("RDMA/bnxt_re: Restrict the max_gids to 256")
Link: https://patch.msgid.link/r/1728373302-19530-11-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2024-10-11 20:49:02 -03:00
Abhishek Mohapatra
ac6df53738 RDMA/bnxt_re: Fix the max CQ WQEs for older adapters
Older adapters doesn't support the MAX CQ WQEs reported by older FW. So
restrict the value reported to 1M always for older adapters.

Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://patch.msgid.link/r/1728373302-19530-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Abhishek Mohapatra<abhishek.mohapatra@broadcom.com>
Reviewed-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2024-10-11 20:49:00 -03:00
Kalesh AP
f786eebbbe RDMA/bnxt_re: Avoid an extra hwrm per MR creation
Firmware now have a new mr registration command where
both MR allocation and registration can be done in a
single hwrm command. Driver has to issue this new hwrm
command whenever the support flag is set. This reduces
the number of hwrm issued per MR creation and speed up
the MR creation.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1725256351-12751-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-09-02 12:33:47 +03:00
Kalesh AP
b98d969719 RDMA/bnxt_re: Rename a variable
Renaming flags to access_flags for clarity.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1725256351-12751-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-09-02 12:33:47 +03:00
Selvin Xavier
de1d364c38 RDMA/bnxt_re: Add support for Variable WQE in Genp7 adapters
Variable size WQE means that each send Work Queue Entry to HW can use
different WQE sizes as opposed to the static WQE size on the current
devices. Set variable WQE mode for Gen P7 devices. Depth of the Queue will
be a multiple of slot which is 16 bytes. The number of slots should be a
multiple of 256 as per the HW requirement.

Initialize the Software shadow queue to hold requests equal to the number
of slots. Also, do not expose the variable size WQE capability until the
last patch in the series.

Link: https://patch.msgid.link/r/1724042847-1481-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2024-08-27 10:15:57 -03:00
Selvin Xavier
8d310ba845 RDMA/bnxt_re: Allow MSN table capability check
FW reports the HW capability to use PSN table or MSN table and
driver/library need to select it based on this capability.
Use the new capability instead of the older capability check for HW
retransmission while handling the MSN/PSN table. FW report
zero (PSN table) for older adapters to maintain backward compatibility.

Also, Updated the FW interface structures to handle the new fields.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1716876697-25970-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2024-05-30 13:28:02 +03:00
Selvin Xavier
a62d685814 RDMA/bnxt_re: Update the BAR offsets
Update the BAR offsets for handling GenP7 adapters.
Use the values populated by L2 driver for getting the
Doorbell offsets.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1701946060-13931-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-12-11 09:56:28 +02:00
Selvin Xavier
1801d87b35 RDMA/bnxt_re: Support new 5760X P7 devices
Add basic support for 5760X P7 devices. Add new chip
revisions. The first version support is similar to
the existing P5 adapters. Extend the current support
for P5 adapters to P7 also.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1701946060-13931-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-12-11 09:56:28 +02:00
Kalesh AP
14611b9b98 RDMA/bnxt_re: Remove unnecessary variable initializations
Remove unnecessary variable initializations.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1691052326-32143-7-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-08-07 16:39:42 +03:00
Selvin Xavier
c9f3e4e1d8 RDMA/bnxt_re: Fix the sideband buffer size handling for FW commands
bnxt_qplib_rcfw_alloc_sbuf allocates 24 bytes and it is better to fit
on stack variables. This way we can avoid unwanted kmalloc call.
Call dma_alloc_coherent directly instead of wrapper
bnxt_qplib_rcfw_alloc_sbuf.

Also, FW expects the side buffer  needs to be aligned to
BNXT_QPLIB_CMDQE_UNITS(16B). So align the size to have the
extra padding bytes.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1691052326-32143-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-08-07 16:39:42 +03:00
Kalesh AP
f19fba1f79 RDMA/bnxt_re: Fix max_qp count for virtual functions
Driver has not accounted QP1 for virtual functions
when fetching device attributes and hence max_qp
count is one less than active_qp count. Fixed driver
so that it counts QP1 for virtual functions as well
while fetching device attributes

Fixes: ccd9d0d3df ("RDMA/bnxt_re: Enable RoCE on virtual functions")
Signed-off-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1691052326-32143-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-08-07 16:39:42 +03:00
Chandramohan Akula
4405baf85a bnxt_re: Expose the missing hw counters
Add code to expose some of the HW counters related
to tx/rx data and Congestion control.

Signed-off-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1690383081-15033-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-07-30 14:37:04 +03:00
Jason Gunthorpe
5f004bcaee Linux 6.4
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Merge tag 'v6.4' into rdma.git for-next

Linux 6.4

Resolve conflicts between rdma rc and next in rxe_cq matching linux-next:

drivers/infiniband/sw/rxe/rxe_cq.c:
  https://lore.kernel.org/r/20230622115246.365d30ad@canb.auug.org.au

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-06-27 14:06:29 -03:00
Selvin Xavier
0ac20faf5d RDMA/bnxt_re: Reorg the bar mapping
Reorganize the code for allocation and mapping of Doorbell
pages. Implements new HW command to get the BAR length used by L2
driver. These changes are used by the future patch which maps the WC
Doorbell pages.

Also, introduced a new lock dpi_tbl_lock for synchronize the DB page
allocation from users.

Link: https://lore.kernel.org/r/1686679943-17117-7-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-06-21 14:13:17 -03:00
Kashyap Desai
bb8c93618f RDMA/bnxt_re: consider timeout of destroy ah as success.
If destroy_ah is timed out, it is likely to be destroyed by firmware
but it is taking longer time due to temporary slowness
in processing the rcfw command. In worst case, there might be
AH resource leak in firmware.

Sending timeout return value can dump warning message from ib_core
which can be avoided if we map timeout of destroy_ah as success.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1686308514-11996-14-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-06-12 10:10:17 +03:00
Kalesh AP
8c1ee346da RDMA/bnxt_re: Remove unnecessary checks
The NULL check inside bnxt_qplib_del_sgid() and bnxt_qplib_add_sgid()
always return false as the "sgid_tbl" inside "rdev->qplib_res" is a static
memory.

Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/1684478897-12247-8-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-05-19 13:26:19 -03:00
Selvin Xavier
08c7f09356 RDMA/bnxt_re: Fix the page_size used during the MR creation
Driver populates the list of pages used for Memory region wrongly when
page size is more than system page size. This is causing a failure when
some of the applications that creates MR with page size as 2M.  Since HW
can support multiple page sizes, pass the correct page size while creating
the MR.

Also, driver need not adjust the number of pages when HW Queues are
created with user memory. It should work with the number of dma blocks
returned by ib_umem_num_dma_blocks. Fix this calculation also.

Fixes: 0c4dcd6028 ("RDMA/bnxt_re: Refactor hardware queue memory allocation")
Fixes: f6919d5638 ("RDMA/bnxt_re: Code refactor while populating user MRs")
Link: https://lore.kernel.org/r/1683484169-9539-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-05-12 18:30:30 -03:00
Selvin Xavier
f13bcef04b RDMA/bnxt_re: Enable congestion control by default
Enable Congesion control by default. Issue FW command
enable the CC during driver load and disable it during
unload.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1680169540-10029-8-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-04-04 09:17:21 +03:00
Selvin Xavier
ff015bcd21 RDMA/bnxt_re: Reduce number of argumets to control path command APIs
Reducing the number of arguments to bnxt_qplib_rcfw_send_message
by enclosing all its arguments into a command message structure.
Use the same struct while passing the command information to
send_message.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1680169540-10029-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-04-04 09:17:21 +03:00
Selvin Xavier
e576adf583 RDMA/bnxt_re: Convert RCFW_CMD_PREP macro to static inline function
Convert RCFW_CMD_PREP macro to static inline function.
Also, remove the cmd_flags passed as none of the functions
are using it.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1680169540-10029-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-04-04 09:17:21 +03:00
Selvin Xavier
b400acee06 RDMA/bnxt_re: Remove HW queue mapping from RoCE Driver
bnxt_en driver does the queue mapping for RoCE traffic. Removing the
queue mapping from RoCE driver.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1680169540-10029-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-04-04 09:17:21 +03:00
Kamal Heib
0e938533d9 RDMA/bnxt_re: Remove dynamic pkey table
The RoCE spec requires RoCE devices to support only the default pkey.
However the bnxt_re driver maintains a 0xFFFF entry pkey table and uses
only the first entry. Remove the pkey table and hard code a table of
length one hard wired with the default pkey.

Link: https://lore.kernel.org/r/20211125033615.483750-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Devesh Sharma <devesh.s.sharma@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-11-25 13:35:51 -04:00
Jakub Kicinski
fd92213e9a RDMA: Constify netdev->dev_addr accesses
netdev->dev_addr will become const soon, make sure drivers propagate the
qualifier.

Link: https://lore.kernel.org/r/20211019182604.1441387-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-10-25 14:33:09 -03:00
Selvin Xavier
9a381f7e5a RDMA/bnxt_re: Add extended statistics counters
Implement extended statistics counters for newer adapters. Check if the FW
support for this command and issue the FW command only if is
supported. Includes code re-organization to handle extended stats. Also,
add AH and PD software counters.

Link: https://lore.kernel.org/r/1631709163-2287-2-git-send-email-selvin.xavier@broadcom.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-09-20 13:37:00 -03:00
Devesh Sharma
35f5ace5de RDMA/bnxt_re: Enable global atomic ops if platform supports
Enabling Atomic operations for Gen P5 devices if the underlying platform
supports global atomic ops.

Link: https://lore.kernel.org/r/20210603131534.982257-2-devesh.sharma@broadcom.com
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-06-03 16:59:11 -03:00
Selvin Xavier
c930af5ab4 RDMA/bnxt_re: Allow bigger MR creation
Allow users to create bigger MRs. Remove the check that prevented creating
MRs with number of pages more than 512.

Link: https://lore.kernel.org/r/1610012608-14528-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-01-18 16:56:09 -04:00
Selvin Xavier
f6919d5638 RDMA/bnxt_re: Code refactor while populating user MRs
Refactor code that populates MR page buffer list. Instead of allocating a
pbl_tbl to hold the buffer list, pass the struct ib_umem directly to
bnxt_qplib_alloc_init_hwq() as done for other user space memories.  Fix
the PBL level to handle the above mentioned change.

Also, remove an unwanted flag from the input to bnxt_qplib_reg_mr()
function.

Link: https://lore.kernel.org/r/1610012608-14528-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-01-18 16:56:08 -04:00
Selvin Xavier
c63e1c4dfc RDMA/bnxt_re: Fix max_qp_wrs reported
While creating qps, the driver adds one extra entry to the sq size passed
by the ULPs in order to avoid queue full condition.  When ULPs creates QPs
with max_qp_wr reported, driver creates QP with 1 more than the max_wqes
supported by HW. Create QP fails in this case. To avoid this error, reduce
1 entry in max_qp_wqes and report it to the stack.

Link: https://lore.kernel.org/r/1606741986-16477-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-12-07 15:43:42 -04:00
Naresh Kumar PBS
847b97887e RDMA/bnxt_re: Restrict the max_gids to 256
Some adapters report more than 256 gid entries. Restrict it to 256 for
now.

Fixes: 1ac5a4047975("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/1598292876-26529-6-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Naresh Kumar PBS <nareshkumar.pbs@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-08-27 09:30:44 -03:00
Jason Gunthorpe
7c08bc1956 RDMA/bnxt_re: Remove FMR leftovers
The bnxt_re_fmr struct is never referenced and the max_fmr items
in bnxt_qplib_dev_attr are never read.

Link: https://lore.kernel.org/r/6-v3-f58e6669d5d3+2cf-fmr_removal_jgg@mellanox.com
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-06-02 20:32:53 -03:00
Devesh Sharma
0c4dcd6028 RDMA/bnxt_re: Refactor hardware queue memory allocation
At top level there are three major data structure addition.  viz
bnxt_qplib_hwq_attr, bnxt_qplib_sg_info and bnxt_qplib_tqm_ctx

Intorduction of first data structure reduces the arguments list to
bnxt_re_alloc_init_hwq() function. There are changes all over the driver
code to incorporate this new structure. The caller needs to fill the
attribute data structure and pass to this function.

The second data structure is to pass memory region description
viz. sghead, page_size and page_shift. There are changes all over the
driver code to initialize bnxt_re_sg_info data structure. The new data
structure helps to reduce the argument list of __alloc_pbl() function
call.

Till now the TQM rings related members were not collected under any
specific data-structure making it hard to manage. The third data
sctructure bnxt_qplib_tqm_ctx is added to refactor the TQM queue
allocation and initialization.

Link: https://lore.kernel.org/r/1581786665-23705-4-git-send-email-devesh.sharma@broadcom.com
Signed-off-by: Naresh Kumar PBS <nareshkumar.pbs@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-21 20:21:43 -04:00
Selvin Xavier
c56b593d2a RDMA/bnxt_re: Honor vlan_id in GID entry comparison
A GID entry consists of GID, vlan, netdev and smac.  Extend GID duplicate
check comparisons to consider vlan_id as well to support IPv6 VLAN based
link local addresses. Introduce a new structure (bnxt_qplib_gid_info) to
hold gid and vlan_id information.

The issue is discussed in the following thread
https://lore.kernel.org/r/AM0PR05MB4866CFEDCDF3CDA1D7D18AA5D1F20@AM0PR05MB4866.eurprd05.prod.outlook.com

Fixes: 823b23da71 ("IB/core: Allow vlan link local address based RoCE GIDs")
Cc: <stable@vger.kernel.org> # v5.2+
Link: https://lore.kernel.org/r/20190715091913.15726-1-selvin.xavier@broadcom.com
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Co-developed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-22 15:04:04 -03:00
Leon Romanovsky
d345691471 RDMA: Handle AH allocations by IB/core
Simplify drivers by ensuring lifetime of ib_ah object. The changes
in .create_ah() go hand in hand with relevant update in .destroy_ah().

We will use this opportunity and convert .destroy_ah() to don't fail, as
it was suggested a long time ago, because there is nothing to do in case
of failure during destroy.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-08 13:05:25 -03:00
Selvin Xavier
5aa8484080 RDMA/bnxt_re: Use correct sizing on buffers holding page DMA addresses
umem->nmap is used while allocating internal buffer for storing
page DMA addresses. This causes out of bounds array access while iterating
the umem DMA-mapped SGL with umem page combining as umem->nmap can be
less than number of system pages in umem.

Use ib_umem_num_pages() instead of umem->nmap to size the page array.
Add a new structure (bnxt_qplib_sg_info) to pass sglist, npages and nmap.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-28 14:13:27 -03:00
Devesh Sharma
37f91cff2d RDMA/bnxt_re: Add extended psn structure for 57500 adapters
The new 57500 series of adapter has bigger psn search structure.  The size
of new structure is 16B. Changing the control path memory allocation and
fast path code to accommodate the new psn structure while maintaining the
backward compatibility.

There are few additional changes listed below:
 - For 57500 chip max-sge are limited to 6 for now.
 - For 57500 chip max-receive-sge should be set to 6 for now.
 - Add driver/hardware interface structure for new chip.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-07 13:24:48 -07:00
Aditya Pakki
94edd87a1c infiniband: bnxt_re: qplib: Check the return value of send_message
In bnxt_qplib_map_tc2cos(), bnxt_qplib_rcfw_send_message() can return an
error value but it is lost. Propagate this error to the callers.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Acked-By: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-02 16:04:24 -07:00
Gal Pressman
50c582de1d RDMA/bnxt_re: Make use of destroy AH sleepable flag
When in a sleepable (non-atomic) context, wait for firmware completion
instead of polling for it.

Signed-off-by: Gal Pressman <galpress@amazon.com>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-19 16:28:04 -07:00
Gal Pressman
90e3edd8cc RDMA/bnxt_re: Make use of create AH sleepable flag
When in a sleepable (non-atomic) context, wait for firmware completion
instead of polling for it.

Signed-off-by: Gal Pressman <galpress@amazon.com>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-19 16:28:03 -07:00
Devesh Sharma
854a202001 RDMA/bnxt_re: Limit max_pkey to 16 bit value
Some FW versios return pkey values more than 0xFFFF. pkey_tbl_len of
ib_port_attr is 16bit value. So restricting max_pkeys to 0xFFFF.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-16 00:03:51 -06:00