Commit Graph

7474 Commits

Author SHA1 Message Date
Maxime Coquelin
816a565bf3 vhost: merge sync and async mbuf to descriptor filling
This patches merges copy_mbuf_to_desc() used by the sync
path with async_mbuf_to_desc() used by the async path.

Most of these complex functions are identical, so merging
them will make the maintenance easier.

In order not to degrade performance, the patch introduces
a boolean function parameter to specify whether it is called
in async context. This boolean is statically passed to this
always-inlined function, so the compiler will optimize this
out.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
b84e85e3b1 vhost: prepare sync for mbuf to descriptor refactoring
This patch extracts the descriptors buffers filling
from copy_mbuf_to_desc() into a dedicated function as a
preliminary step of merging copy_mubf_to_desc() and
async_mbuf_to_desc().

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
dbfa4c0bbd vhost: prepare async for mbuf to descriptor refactoring
This patch extracts the IO vectors filling from
async_mbuf_to_desc() into a dedicated function as a
preliminary step of merging copy_mubf_to_desc() and
async_mbuf_to_desc().

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
c75987487d vhost: simplify getting first in-flight index
This patch reworks the function getting the index
for the first packet in-flight.

When this index turns out to be zero, let's use the simple
path. Doing that avoid having to do a modulo with the
virtqueue size.

The patch also rename the function for better clarification,
and only pass the virtqueue metadata pointer, as all the
needed information are stored there.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
a3cfa8081f vhost: simplify async enqueue completion
vhost_poll_enqueue_completed() assumes some inflight
packets could have been completed in a previous call but
not returned to the application. But this is not the case,
since check_completed_copies callback is never called with
more than the current count as argument.

In other words, async->last_pkts_n is always 0. Removing it
greatly simplifies the function.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
2cbe826e26 vhost: remove notion of async descriptor
Now that IO vectors iterator have been simplified, the
rte_vhost_async_desc struct only contains a pointer on
the iterator array stored in the async metadata.

This patch removes it, and pass directly the iterators
array pointer to the transfer_data callback. Doing that,
we avoid declaring the descriptor array in the stack, and
also avoid the cost of filling it.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
d5d25cfd85 vhost: improve IO vector logic
IO vectors and their iterators arrays were part of the
async metadata but not their indexes.

In order to makes this more consistent, the patch adds the
indexes to the async metadata. Doing that, we can avoid
triggering DMA transfer within the loop as it IO vector
index overflow is now prevented in the async_mbuf_to_desc()
function.

Note that previous detection mechanism was broken
since the overflow already happened when detected, so OOB
memory access would already have happened.

With this changes done, virtio_dev_rx_async_submit_split()
and virtio_dev_rx_async_submit_packed() can be further
simplified.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
0af9f99221 vhost: remove useless fields in async iterator struct
Offset and count fields are unused and so can be removed.
The offset field was actually in the Vhost example, but
in a way that does not make sense.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
6171bfbfb2 vhost: introduce specific iovec structure
This patch introduces rte_vhost_iovec struct that contains
both source and destination addresses since we always have
a 1:1 mapping between source and destination. While using
the standard iovec struct might have seemed better, having
to duplicate IO vectors and its iterators is memory
inefficient and make the implementation more complex.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
8b3fc5a213 vhost: remove async batch threshold
Reaching the async batch threshold was one of the condition
to trigger the DMA transfer. However, this condition was
never met since the threshold value is 32, same as the
MAX_PKT_BURST value.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
3fe629547e vhost: simplify async IO vectors iterators
This patch splits the iterator arrays in two, one for
source and one for destination. The goal is make the code
easier to understand.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
97064162d4 vhost: simplify async IO vectors
IO vectors implementation is unnecessarily complex, mixing
source and destinations vectors in the same array.

This patch declares two arrays, one for the source and one
for the destination. It also gets rid of seg_awaits variable
in both packed and split implementation, which is the same
as iovec_idx.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
5f89c5e1e9 vhost: hide in-flight async structure
This patch moves async_inflight_info struct to internal
header since it should not be part of the API.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Maxime Coquelin
ee8024b3d4 vhost: move async data in dedicated structure
This patch moves async-related metadata from vhost_virtqueue
to a dedicated struct. It makes it clear which fields are
async related, and also saves some memory when async feature
is not in use.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
2021-10-29 12:32:30 +02:00
Miao Li
c6e305141a power: support missing Rx queue info
Since some vdevs like virtio and vhost do not support rxq_info_get and
queue state inquiry, the error return value -ENOTSUP need to be ignored
when queue_stopped cannot get rx queue information and rx queue state.
This patch changes the return value of queue_stopped when
rte_eth_rx_queue_info_get return -ENOTSUP to support vdevs which cannot
provide rx queue information and rx queue state enable power management.

Fixes: 209fd58545 ("power: make ethdev power management thread unsafe")
Cc: stable@dpdk.org

Signed-off-by: Miao Li <miao.li@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
2021-10-29 12:32:29 +02:00
Miao Li
34fd4373ce vhost: add power monitor API
This commit defines rte_vhost_power_monitor_cond which is used to pass
some information to vhost driver. The information is including the
address to monitor, the expected value, the mask to extract value read
from 'addr', the value size of monitor address, the match flag used to
distinguish the value used to match something or not match something.

Vhost driver can use these information to fill rte_power_monitor_cond.

Signed-off-by: Miao Li <miao.li@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>
2021-10-29 12:32:29 +02:00
Xuan Ding
5fd6e93b7e vhost: remove async DMA map status
Async DMA map status flag was added to prevent the unnecessary unmap
when DMA devices bound to kernel driver. This brings maintenance cost
for a lot of code. This patch removes the DMA map status by using
rte_errno instead.

This patch relies on the following patch to fix a partial
unmap check in vfio unmapping API.
[1] https://www.mail-archive.com/dev@dpdk.org/msg226464.html

Signed-off-by: Xuan Ding <xuan.ding@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-10-29 12:32:22 +02:00
David Marchand
e7c727c307 net: fix build with sparse on L2TPv2 bitfields
An external project that wants to do additional checks on fields
endianness can remap rte_beXX types to instrumented types and use
sparse.

The current code breaks OVS build with sparse:
../../lib/ofp-packet.c: note: in included file (through
  .../ovs/dpdk-dir/build/include/rte_flow.h, ../../lib/netdev-dpdk.h,
  ../../lib/dp-packet.h):
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:92:37:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:93:37:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:94:40:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:95:37:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:96:40:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:97:37:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:98:37:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h:99:40:
  error: invalid bitfield specifier for type restricted ovs_be16.
.../ovs/dpdk-dir/build/include/rte_l2tpv2.h💯39:
  error: invalid bitfield specifier for type restricted ovs_be16.
make[3]: *** [lib/ofp-packet.lo] Error 1

Use simple uint16_t types for bitfields in L2TPv2 struct.

Fixes: 3a929df1f2 ("ethdev: support L2TPv2 and PPP procotol")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2021-10-28 20:28:01 +02:00
David Marchand
41f2f05574 ethdev: warn once when using port not ready
Warning continuously is a pain when developping or if a unit test
is/gets broken.

It could also be a problem if application behaves badly only in some
corner cases and a DoS results of those logs being continuously displayed.

Let's warn once per port and per rx/tx.

Getting such a log is scary, but let's make it more eye catching by
dumping a backtrace with it.

Tested by introducing a bug in testpmd:
 static int
 eth_dev_start_mp(uint16_t port_id)
 {
-       if (is_proc_primary())
+       if (!is_proc_primary())
                return rte_eth_dev_start(port_id);

        return 0;

Then, running a basic null test:
$ ./devtools/test-null.sh
...
Start automatic packet forwarding
io packet forwarding - ports=2 - cores=1 - streams=2 - NUMA support
  enabled, MP allocation mode: native
Logical Core 1 (socket 0) forwards packets on 2 streams:
  RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01
  RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00

lcore 0 called rx_pkt_burst for not ready port 0
8: [build/app/dpdk-testpmd() [0x59e839]]
7: [/lib64/libc.so.6(__libc_start_main+0xf5) [0x7ff481b69555]]
6: [build/app/dpdk-testpmd(main+0x54b) [0x662d24]]
5: [build/app/dpdk-testpmd(start_packet_forwarding+0x263) [0x65e795]]
4: [build/app/dpdk-testpmd() [0x65e1be]]
3: [build/app/dpdk-testpmd() [0x65a996]]
2: [build/app/dpdk-testpmd() [0xa6cbc7]]
1: [build/app/dpdk-testpmd(rte_dump_stack+0x27) [0xaee796]]
lcore 0 called rx_pkt_burst for not ready port 1
8: [build/app/dpdk-testpmd() [0x59e839]]
7: [/lib64/libc.so.6(__libc_start_main+0xf5) [0x7ff481b69555]]
6: [build/app/dpdk-testpmd(main+0x54b) [0x662d24]]
5: [build/app/dpdk-testpmd(start_packet_forwarding+0x263) [0x65e795]]
4: [build/app/dpdk-testpmd() [0x65e1be]]
3: [build/app/dpdk-testpmd() [0x65a996]]
2: [build/app/dpdk-testpmd() [0xa6cbc7]]
1: [build/app/dpdk-testpmd(rte_dump_stack+0x27) [0xaee796]]
  io packet forwarding packets/burst=32
  nb forwarding cores=1 - nb forwarding ports=2
  port 0: RX queue number: 1 Tx queue number: 1
    Rx offloads=0x0 Tx offloads=0x0

Fixes: c87d435a4d ("ethdev: copy fast-path API into separate structure")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Tested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2021-10-27 19:28:45 +02:00
Olivier Matz
9bffc92850 mem: fix dynamic hugepage mapping in container
Since its introduction in 2018, the SIGBUS handler was never registered,
and all related functions were unused.

A SIGBUS can be received by the application when accessing to hugepages
even if mmap() was successful, This happens especially when running
inside containers when there is not enough hugepages. In this case, we
need to recover. A similar scheme can be found in eal_memory.c.

Fixes: 582bed1e1d ("mem: support mapping hugepages at runtime")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-11-05 15:28:55 +01:00
Ilyes Ben Hamouda
770d41bf33 malloc: fix allocation with unknown socket ID
When using rte_malloc() from a thread which is not bound to a numa
socket (the typical case is a control thread, but it can also happen
on a dataplane thread if its cpu affinity is on cores attached to
several sockets), the used heap is the one from numa socket 0, which
may not have available memory.

Fix this by selecting the first socket which has available memory.

Note: malloc_get_numa_socket() is only used from one .c file, so move
it there, and remove the inline keyword.

Fixes: b94580d688 ("malloc: avoid unknown socket id")
Cc: stable@dpdk.org

Signed-off-by: Ilyes Ben Hamouda <ilyes.ben_hamouda@6wind.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-11-05 15:28:49 +01:00
David Hunt
bb0bd346d5 eal: suggest using --lcores option
If the user requests to use an lcore above 128 using -l,
the eal will exit with "EAL: invalid core list syntax" and
very little else useful information.

This patch adds some extra information suggesting to use --lcores
so that physical cores above RTE_MAX_LCORE (default 128) can be
used. This is achieved by using the --lcores option by mapping
the logical cores in the application to physical cores.

For example, if "-l 12-16,130,132" is used, we see the following
additional output on the command line:

EAL: lcore 132 >= RTE_MAX_LCORE (128)
EAL: lcore 133 >= RTE_MAX_LCORE (128)
EAL: To use high physical core ids, please use --lcores to map them
to lcore ids below RTE_MAX_LCORE,
EAL: e.g. --lcores 0@12,1@13,2@14,3@15,4@16,5@132,6@133

The same is added to -c option parsing.

For example, if "-c 0x300000000000000000000000000000000" is
used, we see the following additional output on the command line:

EAL: lcore 128 >= RTE_MAX_LCORE (128)
EAL: lcore 129 >= RTE_MAX_LCORE (128)
EAL: To use high physical core ids, please use --lcores to map them
to lcore ids below RTE_MAX_LCORE,
EAL: e.g. --lcores 0@128,1@129

Signed-off-by: David Hunt <david.hunt@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2021-11-05 14:39:37 +01:00
David Marchand
f5fa0e110f eal: promote non-EAL lcore API as stable
This API has been around for more than a year (and is in LTS 20.11).
It did not receive negative feedback and will be used in a next OVS
release.
Mark it stable.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2021-11-04 22:57:58 +01:00
Konstantin Ananyev
65d9b7c664 bpf: fix convert API when libpcap missing
rte_bpf_convert() implementation depends on libpcap.
Right now it is defined only when this library is installed and
RTE_PORT_PCAP is defined.
Fix that by providing for such case stub rte_bpf_convert()
implementation that will always return an error.
To draw user attention, if proper implementation is disabled,
warning will be thrown at meson configure stage.
Also move stub for another function (rte_bpf_elf_load) into
the same place (bpf_stub.c).

Fixes: 2eccf6afbe ("bpf: add function to convert classic BPF to DPDK BPF")

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 19:56:20 +01:00
Konstantin Ananyev
7b0a120157 bpf: fix doxygen comment
Fix typo in doxygen comments for rte_bpf_convert().

Fixes: 2eccf6afbe ("bpf: add function to convert classic BPF to DPDK BPF")

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 19:56:14 +01:00
David Marchand
54abd300d5 pipeline: remove unreachable branch
A previous change blamed it on compiler/ASan, while this is a real
(yet minor) issue.

This return -EINVAL is never reached since we test all combinations of
fidx and fcin booleans.
All branches end up with a return 0, factorize them.

Fixes: 84f5ac9418 ("pipeline: fix build with ASan")
Fixes: f38913b7fb ("pipeline: add meter array to SWX")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-11-04 18:11:08 +01:00
Yogesh Jangra
2ce3ccbe44 pipeline: fix dead code
Fix minor dead code issue reported by Coverity.

Coverity issue: 373653
Fixes: e9d870 ("pipeline: add SWX pipeline tables")

Signed-off-by: Yogesh Jangra <yogesh.jangra@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-11-04 16:43:27 +01:00
Wojciech Liguzinski
44c730b0e3 sched: add PIE based congestion management
Implement PIE based congestion management based on rfc8033.

The Proportional Integral Controller Enhanced (PIE) algorithm works
by proactively dropping packets randomly.
PIE is implemented as more advanced queue management is required to
address the bufferbloat problem and provide desirable quality of
service to users.

Tests for PIE code added to test application.
Added PIE related information to documentation.

Signed-off-by: Wojciech Liguzinski <wojciechx.liguzinski@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Acked-by: Jasvinder Singh <jasvinder.singh@intel.com>
2021-11-04 15:41:49 +01:00
David Marchand
5633173341 eal/linux: fix device hotplug
The device event interrupt handler was always freed.

Bugzilla ID: 845
Fixes: c2bd9367e1 ("lib: remove direct access to interrupt handle")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Tested-by: Yan Xia <yanx.xia@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-11-04 15:13:41 +01:00
David Marchand
4847122aab eal/linux: fix uevent message parsing
Caught with ASan:
==9727==ERROR: AddressSanitizer: stack-buffer-overflow on address
  0x7f0daa2fc0d0 at pc 0x7f0daeefacb2 bp 0x7f0daa2fadd0 sp 0x7f0daa2fa578
READ of size 1 at 0x7f0daa2fc0d0 thread T1
    #0 0x7f0daeefacb1  (/lib64/libasan.so.5+0xbacb1)
    #1 0x115eba1 in dev_uev_parse ../lib/eal/linux/eal_dev.c:167
    #2 0x115f281 in dev_uev_handler ../lib/eal/linux/eal_dev.c:248
    #3 0x1169b91 in eal_intr_process_interrupts
  ../lib/eal/linux/eal_interrupts.c:1026
    #4 0x116a3a2 in eal_intr_handle_interrupts
  ../lib/eal/linux/eal_interrupts.c:1100
    #5 0x116a7f0 in eal_intr_thread_main
  ../lib/eal/linux/eal_interrupts.c:1172
    #6 0x112640a in ctrl_thread_init
  ../lib/eal/common/eal_common_thread.c:202
    #7 0x7f0dade27159 in start_thread (/lib64/libpthread.so.0+0x8159)
    #8 0x7f0dadb58f72 in clone (/lib64/libc.so.6+0xfcf72)

Address 0x7f0daa2fc0d0 is located in stack of thread T1 at offset 4192
  in frame
    #0 0x115f0c9 in dev_uev_handler ../lib/eal/linux/eal_dev.c:226

  This frame has 2 object(s):
    [32, 48) 'uevent'
    [96, 4192) 'buf' <== Memory access at offset 4192 overflows this
  variable
HINT: this may be a false positive if your program uses some custom
  stack unwind mechanism or swapcontext
      (longjmp and C++ exceptions *are* supported)
Thread T1 created by T0 here:
    #0 0x7f0daee92ea3 in __interceptor_pthread_create
  (/lib64/libasan.so.5+0x52ea3)
    #1 0x1126542 in rte_ctrl_thread_create
  ../lib/eal/common/eal_common_thread.c:228
    #2 0x116a8b5 in rte_eal_intr_init
  ../lib/eal/linux/eal_interrupts.c:1200
    #3 0x1159dd1 in rte_eal_init ../lib/eal/linux/eal.c:1044
    #4 0x7a22f8 in main ../app/test-pmd/testpmd.c:4105
    #5 0x7f0dada7f802 in __libc_start_main (/lib64/libc.so.6+0x23802)

Bugzilla ID: 792
Fixes: 0d0f478d04 ("eal/linux: add uevent parse and process")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Tested-by: Yan Xia <yanx.xia@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-11-04 15:13:41 +01:00
Jim Harris
628bac7df1 eal/linux: remove unused variable for socket memory
clang-13 rightfully complains that the total_mem variable in
eal_parse_socket_arg is set but not used, since the final
accumulated total_mem result isn't used anywhere.
So just remove the total_mem variable.

Fixes: 0a703f0f36 ("eal/linux: fix parsing zero socket memory and limits")

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-11-04 13:27:18 +01:00
Vladimir Medvedkin
11c5b9b51a fib: add RIB extension size parameter
This patch adds a new parameter to the FIB configuration to specify
the size of the extension for internal RIB structure.

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Tested-by: Conor Walsh <conor.walsh@intel.com>
2021-11-04 12:38:03 +01:00
Xueming Li
fc382022c6 eal: fix device iterator when no bus is selected
Devargs used in device iterator initialization wasn't set to zero, random
data like bus string lead to invalid address access.

This patch initializes devargs.

Bugzilla ID: 862
Fixes: c99a2d4c6b ("eal: implement device iteration initialization")
Cc: stable@dpdk.org

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
2021-11-04 11:44:49 +01:00
Vladimir Medvedkin
adeca6685f hash: fix use after free in Toeplitz hash
This patch fixes use after free in thash library, reported by ASAN.

Bugzilla ID: 868
Fixes: 28ebff11c2 ("hash: add predictable RSS")
Cc: stable@dpdk.org

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-11-04 11:43:20 +01:00
Vladimir Medvedkin
d27e2b7e9c hash: enable GFNI Toeplitz hash implementation
This patch enables new GFNI Toeplitz hash in
predictable RSS library.

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 11:19:10 +01:00
Vladimir Medvedkin
31d7c06947 hash: add bulk Toeplitz hash implementation
This patch adds a bulk version for the Toeplitz hash implemented
with Galios Fields New Instructions (GFNI).

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 11:19:10 +01:00
Vladimir Medvedkin
4fd8c4cb0d hash: add new Toeplitz hash implementation
This patch add a new Toeplitz hash implementation using
Galios Fields New Instructions (GFNI).

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 11:19:10 +01:00
Dmitry Kozlyuk
9790fc2149 eal/freebsd: fix IOVA mode selection
FreeBSD EAL selected IOVA mode PA even in --no-huge mode
where PA are not available. Memory zones were created with IOVA
equal to RTE_BAD_IOVA with no indication this field is not usable.

Change IOVA mode detection:
1. Always allow to force --iova-mode=va.
2. In --no-huge mode, disallow forcing --iova-mode=pa, and select VA.
3. Otherwise select IOVA mode according to bus requests, default to PA.
In case contigmem is inaccessible, memory initialization will fail
with a message indicating the cause.

Fixes: c2361bab70 ("eal: compute IOVA mode based on PA availability")
Cc: stable@dpdk.org

Signed-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2021-11-03 18:32:19 +01:00
Feifei Wang
6b70c6b31f distributor: use wait until scheme
Instead of polling for bufptr64 to be updated, use
wait until scheme for this case.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2021-11-03 15:50:14 +01:00
Feifei Wang
388bee69a5 bpf: use wait until scheme for Rx/Tx iteration
Instead of polling for cbi->use to be updated, use wait until scheme.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-03 15:50:14 +01:00
Feifei Wang
4ed4e554ac mcslock: use wait until scheme for unlock
Instead of polling for mcslock to be updated, use wait until scheme
for this case.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2021-11-03 15:50:14 +01:00
Feifei Wang
41902d2468 pflock: use wait until scheme for read lock
Instead of polling for read pflock update, use wait until scheme for
this case.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2021-11-03 15:50:14 +01:00
Feifei Wang
875f350924 eal: add a new helper for wait until scheme
Add a new generic helper which is a macro for wait until scheme.

Furthermore, to prevent compilation warning in arm:
----------------------------------------------
'warning: implicit declaration of function ...'
----------------------------------------------
Delete 'undef' constructions for '__LOAD_EXC_xx', '__SEVL' and '__WFE'.
And add ‘__RTE_ARM’ for these macros to fix the namespace.
This is because original macros are undefine at the end of the file.
If the new macro calls them in other files, they will be seen as
'not defined'.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2021-11-03 15:50:14 +01:00
Konstantin Ananyev
53caecb844 pdump: fix freeing statistics memzone
rte_pdump_init() always allocates new memzone for pdump_stats.
Though rte_pdump_uninit() never frees it.
So the following combination will always fail:
rte_pdump_init(); rte_pdump_uninit(); rte_pdump_init();
The issue was caught by pdump_autotest UT.
While first test run successful, any consecutive runs
of this test-case will fail.
Fix the issue by calling rte_memzone_free() for statistics memzone.

Fixes: 10f726efe2 ("pdump: support pcapng and filtering")

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
2021-11-03 12:53:03 +01:00
Stephen Hemminger
b2be63b55a pdump: fix packet snapshot length initialization
If packet dump was enabled via pdump_enable_by_deviceid
the packet snapshot length was not being set.

Bugzilla ID: 840
Fixes: 10f726efe2 ("pdump: support pcapng and filtering")

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-11-01 00:36:29 +01:00
Stephen Hemminger
ae1702fffe pcapng: use new ethdev namespace
RTE_ prefix was added by
commit 295968d174 ("ethdev: add namespace")

Fixes: 8d23ce8f5e ("pcapng: add new library for writing pcapng files")

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-10-31 23:25:02 +01:00
Zhihong Peng
6cc51b1293 mem: instrument allocator for ASan
This patch adds necessary hooks in the memory allocator for ASan.

This feature is currently available in DPDK only on Linux x86_64.
If other OS/architectures want to support it, ASAN_SHADOW_OFFSET must be
defined and RTE_MALLOC_ASAN must be set accordingly in meson.

Signed-off-by: Xueqin Lin <xueqin.lin@intel.com>
Signed-off-by: Zhihong Peng <zhihongx.peng@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2021-10-29 16:25:03 +02:00
Zhihong Peng
84f5ac9418 pipeline: fix build with ASan
Code changes to avoid the following build error:
"Control reaches end of non-void function".

Signed-off-by: Xueqin Lin <xueqin.lin@intel.com>
Signed-off-by: Zhihong Peng <zhihongx.peng@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-10-29 15:25:34 +02:00
Anatoly Burakov
ab910a8068 vfio: fix partial unmap
Partial unmap support was introduced in commit c13ca4e81c
("vfio: fix DMA mapping granularity for IOVA as VA"), and with it
was added a check that dereferenced the IOMMU type to determine whether
partial ummapping is supported for currently configured IOMMU type. In
certain circumstances (such as when VFIO is supported, but no devices
were bound to the VFIO driver), the IOMMU type pointer can be NULL.

However, dereferencing of IOMMU type was guarded by access to the user
maps list - that is, we were always checking the user map list first,
and then, if we found a memory region that encloses the one we're trying
to unmap, we would have performed the IOMMU type check.

This ensured that the IOMMU type check will not cause any NULL pointer
dereferences, because in order for an IOMMU type check to have been
performed, there necessarily must have been at least one memory region
that was previously mapped successfully, and that implies having a
defined IOMMU type.

When commit 56259f7fc0 ("vfio: allow partially unmapping adjacent
memory") was introduced, the IOMMU type check was moved to
before we were traversing the user mem maps list, thereby introducing a
potential NULL dereference, because the IOMMU type access was no longer
guarded by the user mem maps list traversal.

Fix the issue by moving the IOMMU type check to after the user mem maps
traversal, thereby ensuring that by the time the check happens, the
IOMMU type is always valid.

Fixes: 56259f7fc0 ("vfio: allow partially unmapping adjacent memory")

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Tested-by: Xuan Ding <xuan.ding@intel.com>
2021-10-28 09:51:55 +02:00
Honnappa Nagarahalli
705356f081 eal: simplify control thread creation
Remove the usage of pthread barrier and replace it with
synchronization using atomic variable.
This also removes the use of reference count required to synchronize
freeing the memory.

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Olivier Matz <olivier.matz@6wind.com>
2021-10-25 21:43:10 +02:00