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The PGID (Port Group ID) table holds port masks
for different purposes. The first 72 are reserved
for port destination masks, flood masks, and CPU
forwarding. The rest are shared between multicast,
link aggregation, and virtualization profiles. The
GLAG area is reserved to not be used by anything
else, since it is a subset of the MCAST area.
The arbiter keeps track of which entries are in
use. You can ask for a free ID or give back one
you are done using.
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simon Horman says:
====================
nfp: support for NFP-3800
Yinjun Zhan says:
This is the second of a two part series to support the NFP-3800 device.
To utilize the new hardware features of the NFP-3800, driver adds support
of a new data path NFDK. This series mainly does some refactor work to the
data path related implementations. The data path specific implementations
are now separated into nfd3 and nfdk directories respectively, and the
common part is also moved into a new file.
* The series starts with a small refinement in Patch 1/10. Patches 2/10 and
3/10 are the main refactoring of data path implementation, which prepares
for the adding the NFDK data path.
* Before the introduction of NFDK, there's some more preparation work
for NFP-3800 features, such as multi-descriptor per-packet and write-back
mechanism of TX pointer, which is done in patches 4/10, 5/10, 6/10, 7/10.
* Patch 8/10 allows the driver to select data path according
to firmware version. Finally, patches 9/10 and 10/10 introduce the new
NFDK data path.
Changes between v1 and v2
* Correct kdoc for nfp_nfdk_tx()
* Correct build warnings on 32-bit
Thanks to everyone who contributed to this work.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Due to the different definition of txbuf in NFDK comparing to NFD3,
there're no pre-allocated txbufs for xdp use in NFDK's implementation,
we just use the existed rxbuf and recycle it when xdp tx is completed.
For each packet to transmit in xdp path, we cannot use more than
`NFDK_TX_DESC_PER_SIMPLE_PKT` txbufs, one is to stash virtual address,
and another is for dma address, so currently the amount of transmitted
bytes is not accumulated. Also we borrow the last bit of virtual addr
to indicate a new transmitted packet due to address's alignment
attribution.
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add new data path. The TX is completely different, each packet
has multiple descriptor entries (between 2 and 32). TX ring is
divided into blocks 32 descriptor, and descritors of one packet
can't cross block bounds. The RX side is the same for now.
ABI version 5 or later is required. There is no support for
VLAN insertion on TX. XDP_TX action and AF_XDP zero-copy is not
implemented in NFDK path.
Changes to Jakub's work:
* Move statistics of hw_csum_tx after jumbo packet's segmentation.
* Set L3_CSUM flag to enable recaculating of L3 header checksum
in ipv4 case.
* Mark the case of TSO a packet with metadata prepended as
unsupported.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Xingfeng Hu <xingfeng.hu@corigine.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Dianchao Wang <dianchao.wang@corigine.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prepare for choosing data path based on the firmware version field.
Exploit one bit from the reserved byte in the firmware version field
as the data path type. We need the firmware version right after
vNIC is allocated, so it has to be read inside nfp_net_alloc(),
callers don't have to set it afterwards.
Following patches will bring the implementation of the second data
path.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure that features supported only by some of the data paths
are not enabled for all. Add a mask of supported features into
the data path op structure.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Newer versions of the PCIe microcode support writing back the
position of the TX pointer back into host memory. This speeds
up TX completions, because we avoid a read from device memory
(replacing PCIe read with DMA coherent read).
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
QCidx is not used on fast path, move it to the lower cacheline.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
New datapaths may use multiple descriptor units to describe
a single packet. Prepare for that by adding a descriptors
per simple frame constant into ring size calculations.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To reduce the coupling of slow path ring implementations and their
callers, use callbacks instead.
Changes to Jakub's work:
* Also use callbacks for xmit functions
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation for support for a new datapath format move all
ring and fast path logic into separate files. It is basically
a verbatim move with some wrapping functions, no new structures
and functions added.
The current data path is called NFD3 from the initial version
of the driver ABI it used. The non-fast path, but ring related
functions are moved to nfp_net_dp.c file.
Changes to Jakub's work:
* Rebase on xsk related code.
* Split the patch, move the callback changes to next commit.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next.
This patchset contains updates for the nf_tables register tracking
infrastructure, disable bogus warning when attaching ct helpers,
one namespace pollution fix and few cleanups for the flowtable.
1) Revisit conntrack gc routine to reduce chances of overruning
the netlink buffer from the event path. From Florian Westphal.
2) Disable warning on explicit ct helper assignment, from Phil Sutter.
3) Read-only expressions do not update registers, mark them as
NFT_REDUCE_READONLY. Add helper functions to update the register
tracking information. This patch re-enables the register tracking
infrastructure.
4) Cancel register tracking in case an expression fully/partially
clobbers existing data.
5) Add register tracking support for remaining expressions: ct,
lookup, meta, numgen, osf, hash, immediate, socket, xfrm, tunnel,
fib, exthdr.
6) Rename init and exit functions for the conntrack h323 helper,
from Randy Dunlap.
7) Remove redundant field in struct flow_offload_work.
8) Update nf_flow_table_iterate() to pass flowtable to callback.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Standalone ports use vid 0. Let the bridge use vid 1 when
"vlan_default_pvid 0" is set to avoid collisions. Since no
VLAN is created when default pvid is 0 this is set
at "PORT_ATTR_SET" and handled in the Switchdev fdb handler.
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
allocated_mem is allocated by kcalloc(). The memory is set to zero.
It is unnecessary to call memset again.
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In calipso_map_cat_ntoh(), in the for loop, if the return value of
netlbl_bitmap_walk() is equal to (net_clen_bits - 1), when
netlbl_bitmap_walk() is called next time, out-of-bounds memory accesses
of bitmap[byte_offset] occurs.
The bug was found during fuzzing. The following is the fuzzing report
BUG: KASAN: slab-out-of-bounds in netlbl_bitmap_walk+0x3c/0xd0
Read of size 1 at addr ffffff8107bf6f70 by task err_OH/252
CPU: 7 PID: 252 Comm: err_OH Not tainted 5.17.0-rc7+ #17
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x21c/0x230
show_stack+0x1c/0x60
dump_stack_lvl+0x64/0x7c
print_address_description.constprop.0+0x70/0x2d0
__kasan_report+0x158/0x16c
kasan_report+0x74/0x120
__asan_load1+0x80/0xa0
netlbl_bitmap_walk+0x3c/0xd0
calipso_opt_getattr+0x1a8/0x230
calipso_sock_getattr+0x218/0x340
calipso_sock_getattr+0x44/0x60
netlbl_sock_getattr+0x44/0x80
selinux_netlbl_socket_setsockopt+0x138/0x170
selinux_socket_setsockopt+0x4c/0x60
security_socket_setsockopt+0x4c/0x90
__sys_setsockopt+0xbc/0x2b0
__arm64_sys_setsockopt+0x6c/0x84
invoke_syscall+0x64/0x190
el0_svc_common.constprop.0+0x88/0x200
do_el0_svc+0x88/0xa0
el0_svc+0x128/0x1b0
el0t_64_sync_handler+0x9c/0x120
el0t_64_sync+0x16c/0x170
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The flowtable object is already passed as argument to
nf_flow_table_iterate(), do use not data pointer to pass flowtable.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Eliminate anonymous module_init() and module_exit(), which can lead to
confusion or ambiguity when reading System.map, crashes/oops/bugs,
or an initcall_debug log.
Give each of these init and exit functions unique driver-specific
names to eliminate the anonymous names.
Example 1: (System.map)
ffffffff832fc78c t init
ffffffff832fc79e t init
ffffffff832fc8f8 t init
Example 2: (initcall_debug log)
calling init+0x0/0x12 @ 1
initcall init+0x0/0x12 returned 0 after 15 usecs
calling init+0x0/0x60 @ 1
initcall init+0x0/0x60 returned 0 after 2 usecs
calling init+0x0/0x9a @ 1
initcall init+0x0/0x9a returned 0 after 74 usecs
Fixes: f587de0e2feb ("[NETFILTER]: nf_conntrack/nf_nat: add H.323 helper port")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check if we can elide the load. Cancel if the new candidate
isn't identical to previous store.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The fib expression stores to a register, so we can't add empty stub.
Check that the register that is being written is in fact redundant.
In most cases, this is expected to cancel tracking as re-use is
unlikely.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check if the destination register already contains the data that this
tunnel expression performs. This allows to skip this redundant operation.
If the destination contains a different selector, update the register
tracking information. This patch does not perform bitwise tracking.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check if the destination register already contains the data that this
xfrm expression performs. This allows to skip this redundant operation.
If the destination contains a different selector, update the register
tracking information.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check if the destination register already contains the data that this
socket expression performs. This allows to skip this redundant
operation. If the destination contains a different selector, update the
register tracking information.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The immediate expression might clobber existing data on the registers,
cancel register tracking for the destination register.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check if the destination register already contains the data that this
osf expression performs. Always cancel register tracking for jhash since
this requires tracking multiple source registers in case of
concatenations. Perform register tracking (without bitwise) for symhash
since input does not come from source register.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Allow to recycle the previous output of the OS fingerprint expression
if flags and ttl are the same.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Random and increment are stateful, each invocation results in fresh output.
Cancel register tracking for these two expressions.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
its enough to export the meta get reduce helper and then call it
from nft_meta_bridge too.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
In most cases, nft_lookup will be read-only, i.e. won't clobber
registers. In case of map, we need to cancel the registers that will
see stores.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check if the destination register already contains the data that this ct
expression performs. This allows to skip this redundant operation. If
the destination contains a different selector, update the register
tracking information.
Export nft_expr_reduce_bitwise as a symbol since nft_ct might be
compiled as a module.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Output of expressions might be larger than one single register, this might
clobber existing data. Reset tracking for all destination registers that
required to store the expression output.
This patch adds three new helper functions:
- nft_reg_track_update: cancel previous register tracking and update it.
- nft_reg_track_cancel: cancel any previous register tracking info.
- __nft_reg_track_cancel: cancel only one single register tracking info.
Partial register clobbering detection is also supported by checking the
.num_reg field which describes the number of register that are used.
This patch updates the following expressions:
- meta_bridge
- bitwise
- byteorder
- meta
- payload
to use these helper functions.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Skip register tracking for expressions that perform read-only operations
on the registers. Define and use a cookie pointer NFT_REDUCE_READONLY to
avoid defining stubs for these expressions.
This patch re-enables register tracking which was disabled in ed5f85d42290
("netfilter: nf_tables: disable register tracking"). Follow up patches
add remaining register tracking for existing expressions.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The function sets the pernet boolean to avoid the spurious warning from
nf_ct_lookup_helper() when assigning conntrack helpers via nftables.
Fixes: 1a64edf54f55 ("netfilter: nft_ct: add helper set support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
as of commit 4608fdfc07e1
("netfilter: conntrack: collect all entries in one cycle")
conntrack gc was changed to run every 2 minutes.
On systems where conntrack hash table is set to large value, most evictions
happen from gc worker rather than the packet path due to hash table
distribution.
This causes netlink event overflows when events are collected.
This change collects average expiry of scanned entries and
reschedules to the average remaining value, within 1 to 60 second interval.
To avoid event overflows, reschedule after each bucket and add a
limit for both run time and number of evictions per run.
If more entries have to be evicted, reschedule and restart 1 jiffy
into the future.
Reported-by: Karel Rericha <karel@maxtel.cz>
Cc: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Cc: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1) XDP multi buffer support
This series enables XDP on non-linear legacy RQ in multi buffer mode.
When XDP is enabled, fragmentation scheme on non-linear legacy RQ is
adjusted to comply to limitations of XDP multi buffer (fragments of the
same size). DMA addresses of fragments are stored in struct page for the
completion handler to be able to unmap them. XDP_TX is supported.
XDP_REDIRECT is not yet supported, the XDP core blocks it for multi
buffer packets at the moment.
2) Trivial cleanups
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Merge tag 'mlx5-updates-2022-03-18' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2022-03-18
1) XDP multi buffer support
This series enables XDP on non-linear legacy RQ in multi buffer mode.
When XDP is enabled, fragmentation scheme on non-linear legacy RQ is
adjusted to comply to limitations of XDP multi buffer (fragments of the
same size). DMA addresses of fragments are stored in struct page for the
completion handler to be able to unmap them. XDP_TX is supported.
XDP_REDIRECT is not yet supported, the XDP core blocks it for multi
buffer packets at the moment.
2) Trivial cleanups
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2022-03-19
1) Delete duplicated functions that calls same xfrm_api_check.
From Leon Romanovsky.
2) Align userland API of the default policy structure to the
internal structures. From Nicolas Dichtel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This code is fine, but it's easier to review if we use snprintf()
instead of sprintf().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Link: https://lore.kernel.org/r/20220318074723.GA6617@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The skb will be checked in kfree_skb(), so remove the outside check.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20220318072728.2659578-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
40GbE Intel Wired LAN Driver Updates 2022-03-17
This series contains updates to i40e and igb drivers.
Tom Rix moves a conversion to little endian to occur only when the
value is used for i40e. He also zeros out a structure to resolve
possible use of garbage value for igb as reported by clang.
* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
igb: zero hwtstamp by default
i40e: little endian only valid checksums
====================
Link: https://lore.kernel.org/r/20220317160236.3534321-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Add support for Asus TF103C
- Add support for Realtek RTL8852B
- Add support for Realtek RTL8723BE
- Add WBS support to mt7921s
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Merge tag 'for-net-next-2022-03-18' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Luiz Augusto von Dentz says:
====================
bluetooth-next pull request for net-next:
- Add support for Asus TF103C
- Add support for Realtek RTL8852B
- Add support for Realtek RTL8723BE
- Add WBS support to mt7921s
* tag 'for-net-next-2022-03-18' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next: (24 commits)
Bluetooth: ath3k: remove superfluous header files
Bluetooth: bcm203x: remove superfluous header files
Bluetooth: hci_bcm: Add the Asus TF103C to the bcm_broken_irq_dmi_table
Bluetooth: mt7921s: Add WBS support
Bluetooth: mt7921s: Add .btmtk_get_codec_config_data
Bluetooth: mt7921s: Add .get_data_path_id
Bluetooth: mt7921s: Set HCI_QUIRK_VALID_LE_STATES
Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt
Bluetooth: btmtkuart: fix error handling in mtk_hci_wmt_sync()
Bluetooth: call hci_le_conn_failed with hdev lock in hci_le_conn_failed
Bluetooth: Send AdvMonitor Dev Found for all matched devices
Bluetooth: msft: Clear tracked devices on resume
Bluetooth: fix incorrect nonblock bitmask in bt_sock_wait_ready()
Bluetooth: Don't assign twice the same value
Bluetooth: btrtl: Add support for RTL8852B
Bluetooth: hci_uart: add missing NULL check in h5_enqueue
Bluetooth: Fix use after free in hci_send_acl
Bluetooth: btusb: Use quirk to skip HCI_FLT_CLEAR_ALL on fake CSR controllers
Bluetooth: hci_sync: Add a new quirk to skip HCI_FLT_CLEAR_ALL
Bluetooth: btmtkuart: fix the conflict between mtk and msft vendor event
...
====================
Link: https://lore.kernel.org/r/20220318224752.1477292-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Variable index is being assigned a value that is never read, it is being
re-assigned later in a following for-loop. The assignment is redundant
and can be removed.
Cleans up clang scan build warning:
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c:1358:17: warning:
Although the value stored to 'index' is used in the enclosing expression,
the value is never actually read from 'index' [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220318012035.89482-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Variable sie is being assigned a value that is never read. The
The assignment is redundant and can be removed.
Cleans up clang scan build warning:
drivers/net/ethernet/atheros/atl1c/atl1c_main.c:1054:22: warning:
Although the value stored to 'size' is used in the enclosing
expression, the value is never actually read from 'size'
[deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220318005021.82073-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In some corner cases, the peer handing an incoming ADD_ADDR option, can
receive a retransmitted ADD_ADDR for the same address before the subflow
creation completes.
We can avoid the above issue by generating and sending the ADD_ADDR echo
before starting the MPJ subflow connection.
This slightly changes the behaviour of the packetdrill tests as the
ADD_ADDR echo packet is sent earlier.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Yonglong Li <liyonglong@chinatelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Link: https://lore.kernel.org/r/20220317221444.426335-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There is no function mlx5e_get_sq(), remove the declaration.
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Starting from commit
4cab346bcf74 ("net/mlx5: No command allowed when command interface is not ready"),
no calls to mlx5_cmd_trigger_completions() are external to cmd.c anymore.
Make it a static function.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
After introducing multi-buffer XDP_TX, the MLX5E_XDP_TX_DS_COUNT define
became misleading. It's no longer the DS count of an XDP_TX WQE, this
WQE can be longer because of fragments.
As this define is only used at one place in mlx5e_open_xdpsq(), it's
also not very useful anymore. This commit removes the define and puts
the calculation of ds_count for prefilled single-fragment WQEs inline.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit enables passing multi buffer XDP frames to the TX handlers
on XDP_TX. Fragments are DMA synchronized to the device and queued to
the xdpi_fifo for a subsequent unmapping.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
