IB/hfi1: Reduce printing of errors during driver shut down

The driver prints unnecessary prints for error conditions on shutdown
remove them to quiet it down.

Signed-off-by: Douglas Miller <doug.mi

IB/hfi1: Reduce printing of errors during driver shut down

The driver prints unnecessary prints for error conditions on shutdown
remove them to quiet it down.

Signed-off-by: Douglas Miller <doug.miller@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/169271327832.1855761.3756156924805531643.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

show more ...

IB/hfi1: Fix possible panic during hotplug remove

During hotplug remove it is possible that the update counters work
might be pending, and may run after memory has been freed.
Cancel the update coun

IB/hfi1: Fix possible panic during hotplug remove

During hotplug remove it is possible that the update counters work
might be pending, and may run after memory has been freed.
Cancel the update counters work before freeing memory.

Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Signed-off-by: Douglas Miller <doug.miller@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/169099756100.3927190.15284930454106475280.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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IB/hfi1: Remove trace newlines

The hfi1_cdbg trace mechanism appends a newline. Remove trailing
newlines from all format strings.

Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed

IB/hfi1: Remove trace newlines

The hfi1_cdbg trace mechanism appends a newline. Remove trailing
newlines from all format strings.

Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/168088634897.3027109.10401662436950683555.stgit@252.162.96.66.static.eigbox.net
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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IB/hfi1: Update RMT size calculation

Fix possible RMT overflow: Use the correct netdev size.
Don't allow adjusted user contexts to go negative.

Fix QOS calculation: Send kernel context count as an

IB/hfi1: Update RMT size calculation

Fix possible RMT overflow: Use the correct netdev size.
Don't allow adjusted user contexts to go negative.

Fix QOS calculation: Send kernel context count as an argument since
dd->n_krcv_queues is not yet set up in earliest call. Do not include
the control context in the QOS calculation. Use the same sized
variable to find the max of krcvq[] entries.

Update the RMT count explanation to make more sense.

Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167329106946.1472990.18385495251650939054.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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RDMA/hfi1: fix repeated words in comments

Delete the redundant word 'to'.

Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20220908131824.41106-1-wangjianli@cdjrlc.

RDMA/hfi1: fix repeated words in comments

Delete the redundant word 'to'.

Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20220908131824.41106-1-wangjianli@cdjrlc.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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IB/hfi1: Fix early init panic

The following trace can be observed with an init failure such as firmware
load failures:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000000

IB/hfi1: Fix early init panic

The following trace can be observed with an init failure such as firmware
load failures:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 0 P4D 0
Oops: 0010 [#1] SMP PTI
CPU: 0 PID: 537 Comm: kworker/0:3 Tainted: G OE --------- - - 4.18.0-240.el8.x86_64 #1
Workqueue: events work_for_cpu_fn
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0000:ffffae5f878a3c98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff95e48e025c00 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff95e48e025c00
RBP: ffff95e4bf3660a4 R08: 0000000000000000 R09: ffffffff86d5e100
R10: ffff95e49e1de600 R11: 0000000000000001 R12: ffff95e4bf366180
R13: ffff95e48e025c00 R14: ffff95e4bf366028 R15: ffff95e4bf366000
FS: 0000000000000000(0000) GS:ffff95e4df200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000f86a0a003 CR4: 00000000001606f0
Call Trace:
receive_context_interrupt+0x1f/0x40 [hfi1]
__free_irq+0x201/0x300
free_irq+0x2e/0x60
pci_free_irq+0x18/0x30
msix_free_irq.part.2+0x46/0x80 [hfi1]
msix_clean_up_interrupts+0x2b/0x70 [hfi1]
hfi1_init_dd+0x640/0x1a90 [hfi1]
do_init_one.isra.19+0x34d/0x680 [hfi1]
local_pci_probe+0x41/0x90
work_for_cpu_fn+0x16/0x20
process_one_work+0x1a7/0x360
worker_thread+0x1cf/0x390
? create_worker+0x1a0/0x1a0
kthread+0x112/0x130
? kthread_flush_work_fn+0x10/0x10
ret_from_fork+0x35/0x40

The free_irq() results in a callback to the registered interrupt handler,
and rcd->do_interrupt is NULL because the receive context data structures
are not fully initialized.

Fix by ensuring that the do_interrupt is always assigned and adding a
guards in the slow path handler to detect and handle a partially
initialized receive context and noop the receive.

Link: https://lore.kernel.org/r/20211129192003.101968.33612.stgit@awfm-01.cornelisnetworks.com
Cc: stable@vger.kernel.org
Fixes: b0ba3c18d6bf ("IB/hfi1: Move normal functions from hfi1_devdata to const array")
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

show more ...

IB/hfi1: Rebranding of hfi1 driver to Cornelis Networks

Changes instances of Intel to Cornelis in identifying strings

Link: https://lore.kernel.org/r/20211028124601.26694.35662.stgit@awfm-01.cornel

IB/hfi1: Rebranding of hfi1 driver to Cornelis Networks

Changes instances of Intel to Cornelis in identifying strings

Link: https://lore.kernel.org/r/20211028124601.26694.35662.stgit@awfm-01.cornelisnetworks.com
Signed-off-by: Scott Breyer <scott.breyer@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

show more ...

IB/hfi1: Fix early init panic

commit f6a3cfec3c01f9983e961c3327cef0db129a3c43 upstream.

The following trace can be observed with an init failure such as firmware
load failures:

BUG: unable to ha

IB/hfi1: Fix early init panic

commit f6a3cfec3c01f9983e961c3327cef0db129a3c43 upstream.

The following trace can be observed with an init failure such as firmware
load failures:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 0 P4D 0
Oops: 0010 [#1] SMP PTI
CPU: 0 PID: 537 Comm: kworker/0:3 Tainted: G OE --------- - - 4.18.0-240.el8.x86_64 #1
Workqueue: events work_for_cpu_fn
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0000:ffffae5f878a3c98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff95e48e025c00 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff95e48e025c00
RBP: ffff95e4bf3660a4 R08: 0000000000000000 R09: ffffffff86d5e100
R10: ffff95e49e1de600 R11: 0000000000000001 R12: ffff95e4bf366180
R13: ffff95e48e025c00 R14: ffff95e4bf366028 R15: ffff95e4bf366000
FS: 0000000000000000(0000) GS:ffff95e4df200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000f86a0a003 CR4: 00000000001606f0
Call Trace:
receive_context_interrupt+0x1f/0x40 [hfi1]
__free_irq+0x201/0x300
free_irq+0x2e/0x60
pci_free_irq+0x18/0x30
msix_free_irq.part.2+0x46/0x80 [hfi1]
msix_clean_up_interrupts+0x2b/0x70 [hfi1]
hfi1_init_dd+0x640/0x1a90 [hfi1]
do_init_one.isra.19+0x34d/0x680 [hfi1]
local_pci_probe+0x41/0x90
work_for_cpu_fn+0x16/0x20
process_one_work+0x1a7/0x360
worker_thread+0x1cf/0x390
? create_worker+0x1a0/0x1a0
kthread+0x112/0x130
? kthread_flush_work_fn+0x10/0x10
ret_from_fork+0x35/0x40

The free_irq() results in a callback to the registered interrupt handler,
and rcd->do_interrupt is NULL because the receive context data structures
are not fully initialized.

Fix by ensuring that the do_interrupt is always assigned and adding a
guards in the slow path handler to detect and handle a partially
initialized receive context and noop the receive.

Link: https://lore.kernel.org/r/20211129192003.101968.33612.stgit@awfm-01.cornelisnetworks.com
Cc: stable@vger.kernel.org
Fixes: b0ba3c18d6bf ("IB/hfi1: Move normal functions from hfi1_devdata to const array")
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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RDMA/hfi1: Convert to SPDX identifier

use SPDX-License-Identifier instead of a verbose license text

Link: https://lore.kernel.org/r/20210823042622.109-1-caihuoqing@baidu.com
Signed-off-by: Cai Huoq

RDMA/hfi1: Convert to SPDX identifier

use SPDX-License-Identifier instead of a verbose license text

Link: https://lore.kernel.org/r/20210823042622.109-1-caihuoqing@baidu.com
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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RDMA/hfi1: Fix typo in comments

Remove the repeated word 'the' from comments

Link: https://lore.kernel.org/r/20210729082346.1882-1-caihuoqing@baidu.com
Signed-off-by: Cai Huoqing <caihuoqing@baidu.

RDMA/hfi1: Fix typo in comments

Remove the repeated word 'the' from comments

Link: https://lore.kernel.org/r/20210729082346.1882-1-caihuoqing@baidu.com
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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RDMA/hfi1: Convert from atomic_t to refcount_t on hfi1_devdata->user_refcount

refcount_t type and corresponding API can protect refcounters from
accidental underflow and overflow and further use-aft

RDMA/hfi1: Convert from atomic_t to refcount_t on hfi1_devdata->user_refcount

refcount_t type and corresponding API can protect refcounters from
accidental underflow and overflow and further use-after-free situations.

Link: https://lore.kernel.org/r/1626674454-56075-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Tested-by: Josh Fisher <josh.fisher@cornelisnetworks.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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RDMA: Fix kernel-doc warnings about wrong comment

Compilation with W=1 produces warnings similar to the below.

drivers/infiniband/ulp/ipoib/ipoib_main.c:320: warning: This comment
starts with '/

RDMA: Fix kernel-doc warnings about wrong comment

Compilation with W=1 produces warnings similar to the below.

drivers/infiniband/ulp/ipoib/ipoib_main.c:320: warning: This comment
starts with '/**', but isn't a kernel-doc comment. Refer
Documentation/doc-guide/kernel-doc.rst

All such occurrences were found with the following one line
git grep -A 1 "\/\*\*" drivers/infiniband/

Link: https://lore.kernel.org/r/e57d5f4ddd08b7a19934635b44d6d632841b9ba7.1623823612.git.leonro@nvidia.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com> #rtrs
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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IB/hfi1: Rework AIP and VNIC dummy netdev usage

All other users of the dummy netdevice embed the netdev in other
structures:

init_dummy_netdev(&mal->dummy_dev);
init_dummy_netdev(&eth->dummy_dev);

IB/hfi1: Rework AIP and VNIC dummy netdev usage

All other users of the dummy netdevice embed the netdev in other
structures:

init_dummy_netdev(&mal->dummy_dev);
init_dummy_netdev(&eth->dummy_dev);
init_dummy_netdev(&ar->napi_dev);
init_dummy_netdev(&irq_grp->napi_ndev);
init_dummy_netdev(&wil->napi_ndev);
init_dummy_netdev(&trans_pcie->napi_dev);
init_dummy_netdev(&dev->napi_dev);
init_dummy_netdev(&bus->mux_dev);

The AIP and VNIC implementation turns that model inside out and used a
kfree() to free what appears to be a netdev struct when in reality, it is
a struct that enbodies the rx state as well as the dummy netdev used to
support napi_poll across disparate receive contexts. The relationship is
infered by the odd allocation:

const int netdev_size = sizeof(*dd->dummy_netdev) +
sizeof(struct hfi1_netdev_priv);
<snip>
dd->dummy_netdev = kcalloc_node(1, netdev_size, GFP_KERNEL, dd->node);

Correct the issue by:
- Correctly naming the alloc and free functions
- Renaming hfi1_netdev_priv to hfi1_netdev_rx
- Replacing dd dummy_netdev with a netdev_rx pointer
- Embedding the net_device in hfi1_netdev_rx
- Moving the init_dummy_netdev to the alloc routine
- Adjusting wrappers to fit the new model

Fixes: 6991abcb993c ("IB/hfi1: Add functions to receive accelerated ipoib packets")
Link: https://lore.kernel.org/r/1617026056-50483-11-git-send-email-dennis.dalessandro@cornelisnetworks.com
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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RDMA: Fix kernel-doc compilation warnings

This patch fixes bunch of kernel-doc compilation warnings like below:

drivers/infiniband/hw/i40iw/i40iw_cm.c:4372: warning: expecting prototype for i40iw_

RDMA: Fix kernel-doc compilation warnings

This patch fixes bunch of kernel-doc compilation warnings like below:

drivers/infiniband/hw/i40iw/i40iw_cm.c:4372: warning: expecting prototype for i40iw_ifdown_notify(). Prototype was for i40iw_if_notify() instead

Link: https://lore.kernel.org/r/20210314133908.291945-2-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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RDMA/hw/hfi1/chip: Fix a bunch of kernel-doc formatting and spelling issues

Fixes the following W=1 kernel build warning(s):

drivers/infiniband/hw/hfi1/chip.c:1335: warning: Function parameter or

RDMA/hw/hfi1/chip: Fix a bunch of kernel-doc formatting and spelling issues

Fixes the following W=1 kernel build warning(s):

drivers/infiniband/hw/hfi1/chip.c:1335: warning: Function parameter or member 'dd' not described in 'hfi1_addr_from_offset'
drivers/infiniband/hw/hfi1/chip.c:1335: warning: Function parameter or member 'offset' not described in 'hfi1_addr_from_offset'
drivers/infiniband/hw/hfi1/chip.c:1350: warning: Function parameter or member 'dd' not described in 'read_csr'
drivers/infiniband/hw/hfi1/chip.c:1350: warning: Function parameter or member 'offset' not described in 'read_csr'
drivers/infiniband/hw/hfi1/chip.c:1363: warning: Function parameter or member 'dd' not described in 'write_csr'
drivers/infiniband/hw/hfi1/chip.c:1363: warning: Function parameter or member 'offset' not described in 'write_csr'
drivers/infiniband/hw/hfi1/chip.c:1363: warning: Function parameter or member 'value' not described in 'write_csr'
drivers/infiniband/hw/hfi1/chip.c:1385: warning: Function parameter or member 'dd' not described in 'get_csr_addr'
drivers/infiniband/hw/hfi1/chip.c:1385: warning: Function parameter or member 'offset' not described in 'get_csr_addr'
drivers/infiniband/hw/hfi1/chip.c:8442: warning: Function parameter or member 'rcd' not described in 'receive_interrupt_common'
drivers/infiniband/hw/hfi1/chip.c:8491: warning: Function parameter or member 'napi' not described in 'hfi1_netdev_rx_napi'
drivers/infiniband/hw/hfi1/chip.c:8491: warning: Function parameter or member 'budget' not described in 'hfi1_netdev_rx_napi'
drivers/infiniband/hw/hfi1/chip.c:14221: warning: Function parameter or member 'dd' not described in 'init_qpmap_table'
drivers/infiniband/hw/hfi1/chip.c:14221: warning: Function parameter or member 'first_ctxt' not described in 'init_qpmap_table'
drivers/infiniband/hw/hfi1/chip.c:14221: warning: Function parameter or member 'last_ctxt' not described in 'init_qpmap_table'
drivers/infiniband/hw/hfi1/chip.c:14399: warning: Function parameter or member 'dd' not described in 'init_qos'
drivers/infiniband/hw/hfi1/chip.c:14399: warning: Function parameter or member 'rmt' not described in 'init_qos'
drivers/infiniband/hw/hfi1/chip.c:15032: warning: Function parameter or member 'dd' not described in 'hfi1_init_dd'
drivers/infiniband/hw/hfi1/chip.c:15032: warning: Excess function parameter 'dev' description in 'hfi1_init_dd'
drivers/infiniband/hw/hfi1/chip.c:15032: warning: Excess function parameter 'ent' description in 'hfi1_init_dd'
drivers/infiniband/hw/hfi1/chip.c:15395: warning: Function parameter or member 'ppd' not described in 'create_pbc'
drivers/infiniband/hw/hfi1/chip.c:15395: warning: Function parameter or member 'srate_mbs' not described in 'create_pbc'
drivers/infiniband/hw/hfi1/chip.c:15395: warning: Function parameter or member 'dw_len' not described in 'create_pbc'
drivers/infiniband/hw/hfi1/chip.c:15395: warning: Excess function parameter 'srate' description in 'create_pbc'
drivers/infiniband/hw/hfi1/chip.c:15395: warning: Excess function parameter 'dwlen' description in 'create_pbc'

Link: https://lore.kernel.org/r/20210121094519.2044049-16-lee.jones@linaro.org
Cc: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

show more ...

IB/hfi1: Fix error return code in hfi1_init_dd()

Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.

Fixes: 4730f4a6c6b2 ("IB/hfi1: Ac

IB/hfi1: Fix error return code in hfi1_init_dd()

Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.

Fixes: 4730f4a6c6b2 ("IB/hfi1: Activate the dummy netdev")
Link: https://lore.kernel.org/r/1605249747-17942-1-git-send-email-zhangchangzhong@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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IB/hfi1: Remove unnecessary fall-through markings

Reorganize the code a bit in a more standard way[1] and remove
unnecessary fall-through markings.

[1] https://lore.kernel.org/lkml/20200708054703.G

IB/hfi1: Remove unnecessary fall-through markings

Reorganize the code a bit in a more standard way[1] and remove
unnecessary fall-through markings.

[1] https://lore.kernel.org/lkml/20200708054703.GR207186@unreal/

Link: https://lore.kernel.org/r/20200709235250.GA26678@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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IB/hfi1: Fix spelling mistake "enought" -> "enough"

There is a spelling mistake in an error message. Fix it.

Link: https://lore.kernel.org/r/20200528110709.400935-1-colin.king@canonical.com
Signed-

IB/hfi1: Fix spelling mistake "enought" -> "enough"

There is a spelling mistake in an error message. Fix it.

Link: https://lore.kernel.org/r/20200528110709.400935-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: Activate the dummy netdev

As described in earlier patches, ipoib netdev will share receive
contexts with existing VNIC netdev through a dummy netdev. The
following changes are made to achie

IB/hfi1: Activate the dummy netdev

As described in earlier patches, ipoib netdev will share receive
contexts with existing VNIC netdev through a dummy netdev. The
following changes are made to achieve that:
- Set up netdev receive contexts after user contexts. A function is
added to count the available netdev receive contexts.
- Add functions to set/get receive map table free index.
- Rename NUM_VNIC_MAP_ENTRIES as NUM_NETDEV_MAP_ENTRIES.
- Let the dummy netdev own the receive contexts instead of VNIC.
- Allocate the dummy netdev when the hfi1 device is added and free it
when the device is removed.
- Initialize AIP RSM rules when the IpoIb rxq is initialized and
remove the rules when it is de-initialized.
- Convert VNIC to use the dummy netdev.

Link: https://lore.kernel.org/r/20200511160649.173205.4626.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: Add interrupt handler functions for accelerated ipoib

This patch adds the interrupt handler function, the NAPI poll
function, and its associated helper functions for receiving
accelerated i

IB/hfi1: Add interrupt handler functions for accelerated ipoib

This patch adds the interrupt handler function, the NAPI poll
function, and its associated helper functions for receiving
accelerated ipoib packets. While we are here, fix the formats
of two error printouts.

Link: https://lore.kernel.org/r/20200511160637.173205.64890.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: Rename num_vnic_contexts as num_netdev_contexts

Rename num_vnic_contexts as num_ndetdev_contexts since VNIC and ipoib
will share the same set of receive contexts.

Link: https://lore.kernel

IB/hfi1: Rename num_vnic_contexts as num_netdev_contexts

Rename num_vnic_contexts as num_ndetdev_contexts since VNIC and ipoib
will share the same set of receive contexts.

Link: https://lore.kernel.org/r/20200511160625.173205.53306.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: RSM rules for AIP

This is implementation of RSM rule for AIP packets.
AIP rule will use rule RSM2 and will match standard
Infiniband packet containg BTH (LNH==BTH) and
having Dest QPN prefi

IB/hfi1: RSM rules for AIP

This is implementation of RSM rule for AIP packets.
AIP rule will use rule RSM2 and will match standard
Infiniband packet containg BTH (LNH==BTH) and
having Dest QPN prefixed with value 0x81. Spread between
receive contexts will be done using source QPN bits.

VNIC and AIP will share receive contexts, so their rules
will point to the same RMT entries and their shared
code is moved to separate functions.
If any of the rules is active RMT mapping will be skipped
for latter.

Changed function hfi1_vnic_is_rsm_full to be more general
and moved it from main header to chip.c.

Changed the order of RSM rules because AIP rule as
more specific one is needed to be placed before more
general QOS rule. Rules are occupying two last RSM
registers.

Link: https://lore.kernel.org/r/20200511160612.173205.73002.stgit@awfm-01.aw.intel.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: Remove module parameter for KDETH qpns

The module parameter for KDETH qpns is being removed in favor
of always using the default value of 0x80 as the qpn prefix.
Defines have been added for

IB/hfi1: Remove module parameter for KDETH qpns

The module parameter for KDETH qpns is being removed in favor
of always using the default value of 0x80 as the qpn prefix.
Defines have been added for various KDETH values including
the prefix of 0x80.
The reserved range now starts at the base value for KDETH
qpns (0x80) and extends up to and including the last qpn for
other reserved QP prefixed types.
Adjust other QP prefixed define names to match KDETH defined
names.

Link: https://lore.kernel.org/r/20200511160600.173205.27508.stgit@awfm-01.aw.intel.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Gary Leshner <Gary.S.Leshner@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: Add RcvShortLengthErrCnt to hfi1stats

This counter, RxShrErr, is required for error analysis and debug.

Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Link: https://lore.kernel.org/r/20

IB/hfi1: Add RcvShortLengthErrCnt to hfi1stats

This counter, RxShrErr, is required for error analysis and debug.

Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Link: https://lore.kernel.org/r/20200106134235.119356.29123.stgit@awfm-01.aw.intel.com
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/hfi1: Add software counter for ctxt0 seq drop

All other code paths increment some form of drop counter.

This was missed in the original implementation.

Fixes: 82c2611daaf0 ("staging/rdma/hfi1:

IB/hfi1: Add software counter for ctxt0 seq drop

All other code paths increment some form of drop counter.

This was missed in the original implementation.

Fixes: 82c2611daaf0 ("staging/rdma/hfi1: Handle packets with invalid RHF on context 0")
Link: https://lore.kernel.org/r/20200106134228.119356.96828.stgit@awfm-01.aw.intel.com
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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