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When mapping doorbell page from user-mode, the driver should use the system
page size as this memory is allocated via mmap() from user-mode.
Cc: [email protected]
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Long Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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MANA hardware uses 4k page size. When calculating the page table index,
it should use the hardware page size, not the system page size.
Cc: [email protected]
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Long Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Pull rdma updates from Jason Gunthorpe:
"Usual collection of small improvements and fixes:
- Bug fixes and minor improvments in efa, irdma, mlx4, mlx5, rxe,
hf1, qib, ocrdma
- bnxt_re support for MSN, which is a new retransmit logic
- Initial mana support for RC qps
- Use after free bug and cleanups in iwcm
- Reduce resource usage in mlx5 when RDMA verbs features are not used
- New verb to drain shared recieve queues, similar to normal recieve
queues. This is necessary to allow ULPs a clean shutdown. Used in
the iscsi rdma target
- mlx5 support for more than 16 bits of doorbell indexes
- Doorbell moderation support for bnxt_re
- IB multi-plane support for mlx5
- New EFA adaptor PCI IDs
- RDMA_NAME_ASSIGN_TYPE_USER to hint to userspace that it shouldn't
rename the device
- A collection of hns bugs
- Fix long standing bug in bnxt_re with incorrect endian handling of
immediate data"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (65 commits)
IB/hfi1: Constify struct flag_table
RDMA/mana_ib: Set correct device into ib
bnxt_re: Fix imm_data endianness
RDMA: Fix netdev tracker in ib_device_set_netdev
RDMA/hns: Fix mbx timing out before CMD execution is completed
RDMA/hns: Fix insufficient extend DB for VFs.
RDMA/hns: Fix undifined behavior caused by invalid max_sge
RDMA/hns: Fix shift-out-bounds when max_inline_data is 0
RDMA/hns: Fix missing pagesize and alignment check in FRMR
RDMA/hns: Fix unmatch exception handling when init eq table fails
RDMA/hns: Fix soft lockup under heavy CEQE load
RDMA/hns: Check atomic wr length
RDMA/ocrdma: Don't inline statistics functions
RDMA/core: Introduce "name_assign_type" for an IB device
RDMA/qib: Fix truncation compilation warnings in qib_verbs.c
RDMA/qib: Fix truncation compilation warnings in qib_init.c
RDMA/efa: Add EFA 0xefa3 PCI ID
RDMA/mlx5: Support per-plane port IB counters by querying PPCNT register
net/mlx5: mlx5_ifc update for accessing ppcnt register of plane ports
RDMA/mlx5: Add plane index support when querying PTYS registers
...
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Add mana_get_primary_netdev_rcu helper to get a primary
netdevice for a given port. When mana is used with
netvsc, the VF netdev is controlled by an upper netvsc
device. In a baremetal case, the VF netdev is the
primary device.
Use the mana_get_primary_netdev_rcu() helper in the mana_ib
to get the correct device for querying network states.
Fixes: 8b184e4f1c32 ("RDMA/mana_ib: Enable RoCE on port 1")
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Changes the create_cq verb signature by sending the entire uverbs attr
bundle as a parameter. This allows drivers to send driver specific attrs
through ioctl for the create_cq verb and access them in their driver
specific code.
Also adds a new enum value for driver specific ioctl attributes for
methods already supporting UHW.
Link: https://lore.kernel.org/r/ed147343987c0d43fd391c1b2f85e2f425747387.1719512393.git.leon@kernel.org
Signed-off-by: Akiva Goldberger <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
e3f02f32a050 ("ionic: fix kernel panic due to multi-buffer handling")
d9c04209990b ("ionic: Mark error paths in the data path as unlikely")
Signed-off-by: Jakub Kicinski <[email protected]>
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Ignore optional ib_access_flags when an MR is created.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Leon Romanovsky says:
====================
net: mana: Allow variable size indirection table
Like we talked, I created new shared branch for this patch:
https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/log/?h=mana-shared
* 'mana-shared' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
net: mana: Allow variable size indirection table
====================
Link: https://lore.kernel.org/all/20240612183051.GE4966@unreal
Signed-off-by: Leon Romanovsky <[email protected]>
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Allow variable size indirection table allocation in MANA instead
of using a constant value MANA_INDIRECT_TABLE_SIZE.
The size is now derived from the MANA_QUERY_VPORT_CONFIG and the
indirection table is allocated dynamically.
Signed-off-by: Shradha Gupta <[email protected]>
Link: https://lore.kernel.org/r/1718015319-9609-1-git-send-email-shradhagupta@linux.microsoft.com
Reviewed-by: Dexuan Cui <[email protected]>
Reviewed-by: Haiyang Zhang <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Process QP fatal events from the error event queue.
For that, find the QP, using QPN from the event, and then call its
event_handler. To find the QPs, store created RC QPs in an xarray.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Wei Hu <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Fill in properties of the ib device.
Order the assignment in the order of fields in the struct ib_device_attr.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Use the mac address for the node_guid of the IB device.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Implement modify QP state for RC QPs.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Implement user requests to create and destroy an RC QP.
As the user does not have an FMR queue, it is skipped and NO_FMR flag
is used.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Implement HW requests to create and destroy an RC QP.
An RC QP may have 5 queues.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Enable users to create RNIC CQs using a corresponding flag.
With the previous request size, an ethernet CQ is created.
As a response, return ID of the created CQ.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Add a boundary check inside mana_ib_install_cq_cb to prevent index overflow.
Fixes: 2a31c5a7e0d8 ("RDMA/mana_ib: Introduce mana_ib_install_cq_cb helper function")
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Intoduce the mana_ib_remove_cq_cb helper to remove cq callbacks.
The helper removes code duplicates.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Implement RNIC requests for creation and destruction of RNIC CQs.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Create EQs within mana_ib device. Such EQs are required
for creation of RNIC CQs.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Set ret to -ENODEV when netdev_master_upper_dev_get_rcu returns NULL.
Fixes: 8b184e4f1c32 ("RDMA/mana_ib: Enable RoCE on port 1")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Konstantin Taranov <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Set local mac address in RNIC, which is required by the HW.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Implement add_gid and del_gid for RNIC.
IPv4 and IPv6 addresses are supported.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Set netdev and RoCEv2 flag to enable GID population on port 1.
Use GIDs of the master netdev. As mc->ports[] stores slave devices,
use a helper to get the master netdev.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Implement port parameters for RNIC:
1) extend query_port() method
2) implement get_link_layer()
3) implement query_pkey()
Only port 1 can store GIDs.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Add functions for RNIC creation and destruction.
If creation fails, the ib_probe fails as well.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Create an error EQ for the RNIC adapter.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Use num_comp_vectors of struct ib_device instead of max_num_queues
from gdma_context.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Remove printing ret value on success as it was always 0.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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The "struct mana_cfg_rx_steer_req_v2" uses a dynamically sized set of
trailing elements. Specifically, it uses a "mana_handle_t" array. So,
use the preferred way in the kernel declaring a flexible array [1].
At the same time, prepare for the coming implementation by GCC and Clang
of the __counted_by attribute. Flexible array members annotated with
__counted_by can have their accesses bounds-checked at run-time via
CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for
strcpy/memcpy-family functions).
Also, avoid the open-coded arithmetic in the memory allocator functions
[2] using the "struct_size" macro.
Moreover, use the "offsetof" helper to get the indirect table offset
instead of the "sizeof" operator and avoid the open-coded arithmetic in
pointers using the new flex member. This new structure member also allow
us to remove the "req_indir_tab" variable since it is no longer needed.
Now, it is also possible to use the "flex_array_size" helper to compute
the size of these trailing elements in the "memcpy" function.
Specifically, the first commit adds the flex member and the patches 2
and 3 refactor the consumers of the "struct mana_cfg_rx_steer_req_v2".
This code was detected with the help of Coccinelle, and audited and
modified manually. The Coccinelle script used to detect this code
pattern is the following:
virtual report
@rule1@
type t1;
type t2;
identifier i0;
identifier i1;
identifier i2;
identifier ALLOC =~
"kmalloc|kzalloc|kmalloc_node|kzalloc_node|vmalloc|vzalloc|kvmalloc|kvzalloc";
position p1;
@@
i0 = sizeof(t1) + sizeof(t2) * i1;
...
i2 = ALLOC@p1(..., i0, ...);
@script:python depends on report@
p1 << rule1.p1;
@@
msg = "WARNING: verify allocation on line %s" % (p1[0].line)
coccilib.report.print_report(p1[0],msg)
[1] https://www.kernel.org/doc/html/next/process/deprecated.html#zero-length-and-one-element-arrays
[2] https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments
Link: https://lore.kernel.org/all/AS8PR02MB72374BD1B23728F2E3C3B1A18B022@AS8PR02MB7237.eurprd02.prod.outlook.com
Signed-off-by: Erick Archer <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
* mana-ib-flex:
net: mana: Avoid open coded arithmetic
RDMA/mana_ib: Prefer struct_size over open coded arithmetic
net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2
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This is an effort to get rid of all multiplications from allocation
functions in order to prevent integer overflows [1][2].
As the "req" variable is a pointer to "struct mana_cfg_rx_steer_req_v2"
and this structure ends in a flexible array:
struct mana_cfg_rx_steer_req_v2 {
[...]
mana_handle_t indir_tab[] __counted_by(num_indir_entries);
};
the preferred way in the kernel is to use the struct_size() helper to
do the arithmetic instead of the calculation "size + size * count" in
the kzalloc() function.
Moreover, use the "offsetof" helper to get the indirect table offset
instead of the "sizeof" operator and avoid the open-coded arithmetic in
pointers using the new flex member. This new structure member also allow
us to remove the "req_indir_tab" variable since it is no longer needed.
This way, the code is more readable and safer.
This code was detected with the help of Coccinelle, and audited and
modified manually.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [1]
Link: https://github.com/KSPP/linux/issues/160 [2]
Signed-off-by: Erick Archer <[email protected]>
Link: https://lore.kernel.org/r/AS8PR02MB72375EB06EE1A84A67BE722E8B022@AS8PR02MB7237.eurprd02.prod.outlook.com
Reviewed-by: Long Li <[email protected]>
Reviewed-by: Justin Stitt <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Use struct mana_ib_queue and its helpers for RAW QPs
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Use struct mana_ib_queue and its helpers for WQs
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Use struct mana_ib_queue and its helpers for CQs
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Intoduce helpers to work with mana ib queues (struct mana_ib_queue).
A queue always consists of umem, gdma_region, and id.
A queue can become a WQ or a CQ.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Introduce mana_ib_create_dma_region() to create dma regions with iova
for MRs. It allows creating MRs with any page offset. Previously,
only page-aligned addresses worked.
For dma regions that must have a zero dma offset (e.g., for queues),
mana_ib_create_zero_offset_dma_region() is added.
To get the zero offset, ib_umem_find_best_pgoff() is used with zero
pgoff_bitmask.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Use ib_umem_dma_offset() helper to calculate correct dma offset.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Use a helper function to install callbacks to CQs.
This patch removes code repetition.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Use a helper function to access netdevs using a port number.
This patch removes code repetitions as well as removes the need
to explicitly use gdma_dev, which was error-prone.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Use a helper function to access gdma_context from mana_ib_dev.
This patch removes code repetitions as well as removes the need
to explicitly use gdma_dev, which was error-prone.
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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At probing time, the MANA core code allocates EQs for supporting interrupts
on Ethernet queues. The same interrupt mechanisum is used by RAW QP.
Use the same EQs for delivering interrupts on the CQ for the RAW QP.
Signed-off-by: Long Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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With RDMA device registered, use it to query on hardware capabilities and
cache this information for future query requests to the driver.
Signed-off-by: Long Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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Software client needs to register with the RDMA management interface on
the SoC to access more features, including querying device capabilities
and RC queue pair.
Signed-off-by: Long Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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With RX coalescing, one CQE entry can be used to indicate multiple packets
on the receive queue. This saves processing time and PCI bandwidth over
the CQ.
The MANA Ethernet driver also uses the v2 version of the protocol. It
doesn't use RX coalescing and its behavior is not changed.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Long Li <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Pull rdma updates from Jason Gunthorpe:
"Quite a small cycle this time, even with the rc8. I suppose everyone
went to sleep over xmas.
- Minor driver updates for hfi1, cxgb4, erdma, hns, irdma, mlx5, siw,
mana
- inline CQE support for hns
- Have mlx5 display device error codes
- Pinned DMABUF support for irdma
- Continued rxe cleanups, particularly converting the MRs to use
xarray
- Improvements to what can be cached in the mlx5 mkey cache"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (61 commits)
IB/mlx5: Extend debug control for CC parameters
IB/hfi1: Fix sdma.h tx->num_descs off-by-one errors
IB/hfi1: Fix math bugs in hfi1_can_pin_pages()
RDMA/irdma: Add support for dmabuf pin memory regions
RDMA/mlx5: Use query_special_contexts for mkeys
net/mlx5e: Use query_special_contexts for mkeys
net/mlx5: Change define name for 0x100 lkey value
net/mlx5: Expose bits for querying special mkeys
RDMA/rxe: Fix missing memory barriers in rxe_queue.h
RDMA/mana_ib: Fix a bug when the PF indicates more entries for registering memory on first packet
RDMA/rxe: Remove rxe_alloc()
RDMA/cma: Distinguish between sockaddr_in and sockaddr_in6 by size
Subject: RDMA/rxe: Handle zero length rdma
iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()
RDMA/mlx5: Use rdma_umem_for_each_dma_block()
RDMA/umem: Remove unused 'work' member from struct ib_umem
RDMA/irdma: Cap MSIX used to online CPUs + 1
RDMA/mlx5: Check reg_create() create for errors
RDMA/restrack: Correct spelling
RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
...
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memory on first packet
When registering memory in a large chunk that doesn't fit into a single PF
message, the PF may return GDMA_STATUS_MORE_ENTRIES on the first message if
there are more messages needed for registering more chunks.
Fix the VF to make it process the correct return code.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Long Li <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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The "port" comes from the user and if it is zero then the:
ndev = mc->ports[port - 1];
assignment does an out of bounds read. I have changed the if
statement to fix this and to mirror how it is done in
mana_ib_create_qp_rss().
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/r/Y8/3Vn8qx00kE9Kk@kili
Acked-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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gdma_obj_handle_t is no more than redefinition of basic
u64 type. Remove such obfuscation.
Link: https://lore.kernel.org/r/3c1e821279e6a165d058655d2343722d6650e776.1668160486.git.leonro@nvidia.com
Acked-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
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Add a RDMA VF driver for Microsoft Azure Network Adapter (MANA).
Co-developed-by: Ajay Sharma <[email protected]>
Signed-off-by: Ajay Sharma <[email protected]>
Reviewed-by: Dexuan Cui <[email protected]>
Signed-off-by: Long Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
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