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50 Commits

Author SHA1 Message Date
chao an
8a63d29c6e net/devif_poll: optimize device buffer alloc in txpoll 
Allocate the device buffer only if the protocol really need to send data.
not all protocols require the driver to prepare additional iob before
sending, especially UDP, each iob reserves l2/l3 header in advance
after prepare write buffer, net device could reuse this entry to send directly

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-01-13 16:41:10 +08:00
chao an
0cbbbb9215 net/devif: reuse devif_send() for can/pkt/icmp stack 
Signed-off-by: chao an <anchao@xiaomi.com>
 2023-01-13 16:41:10 +08:00
chao an
11de08de27 net/devif_send: replace all block send to nonblock mode 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-08 09:53:15 +01:00
chao an
6950b67b46 net/can: device buffer must be clear after enqueue to readahead 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-08 03:16:42 +08:00
chao an
fc1b71b9a6 net/can: add support of iob input 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-08 03:16:42 +08:00
chao an
34d2cde8a8 net/l2/l3/l4: add support of iob offload 
1. Add new config CONFIG_NET_LL_GUARDSIZE to isolation of l2 stack,
   which will benefit l3(IP) layer for multi-MAC(l2) implementation,
   especially in some NICs such as celluler net driver.

new configuration options: CONFIG_NET_LL_GUARDSIZE

CONFIG_NET_LL_GUARDSIZE will reserved l2 buffer header size of
network buffer to isolate the L2/L3 (MAC/IP) data on network layer,
which will be beneficial to L3 network layer protocol transparent
transmission and forwarding

------------------------------------------------------------
Layout of frist iob entry:

        iob_data (aligned by CONFIG_IOB_ALIGNMENT)
            |
            |                  io_offset(CONFIG_NET_LL_GUARDSIZE)
            |                                |
            -------------------------------------------------
      iob   |            Reserved            |    io_len    |
            -------------------------------------------------

-------------------------------------------------------------
Layout of different NICs implementation:

        iob_data (aligned by CONFIG_IOB_ALIGNMENT)
            |
            |                 io_offset(CONFIG_NET_LL_GUARDSIZE)
            |                                |
            -------------------------------------------------
 Ethernet   |       Reserved    | ETH_HDRLEN |    io_len    |
            ---------------------------------|---------------
 8021Q      |   Reserved  | ETH_8021Q_HDRLEN |    io_len    |
            ---------------------------------|---------------
 ipforward  |            Reserved            |    io_len    |
            -------------------------------------------------

--------------------------------------------------------------------

2. Support iob offload to l2 driver to avoid unnecessary memory copy

Support send/receive iob vectors directly between the NICs and l3/l4
stack to avoid unnecessary memory copies, especially on hardware that
supports Scatter/gather, which can greatly improve performance.

new interface to support iob offload:

  ------------------------------------------
  |    IOB version     |     original      |
  |----------------------------------------|
  |  devif_iob_poll()  |   devif_poll()    |
  |       ...          |       ...         |
  ------------------------------------------

--------------------------------------------------------------------

1> NIC hardware support Scatter/gather transfer

TX:

                tcp_poll()/udp_poll()/pkt_poll()/...(l3|l4)
                           /              \
                          /                \
devif_poll_[l3|l4]_connections()     devif_iob_send() (nocopy:udp/icmp/...)
           /                                   \      (copy:tcp)
          /                                     \
  devif_iob_poll("NIC"_txpoll)                callback() // "NIC"_txpoll
                                                  |
                            dev->d_iob:           |
                                                ---------------         ---------------
                             io_data       iob1 |  |          |    iob3 |  |          |
                                    \           ---------------         ---------------
                                  ---------------  |       --------------- |
                             iob0 |  |          |  |  iob2 |  |          | |
                                  ---------------  |       --------------- |
                                     \             |          /           /
                                        \          |       /           /
                                   ----------------------------------------------
                    NICs io vector |    |    |    |    |    |    |    |    |    |
                                   ----------------------------------------------

RX:

  [tcp|udp|icmp|...]ipv[4|6]_data_handler()(iob_concat/append to readahead)
                    |
                    |
      [tcp|udp|icmp|...]_ipv[4|6]_in()/...
                    |
                    |
          pkt/ipv[4/6]_input()/...
                    |
                    |
     NICs io vector receive(iov_base to each iobs)

--------------------------------------------------------------------

2> CONFIG_IOB_BUFSIZE is greater than MTU:

TX:

"(CONFIG_IOB_BUFSIZE) > (MAX_NETDEV_PKTSIZE + CONFIG_NET_GUARDSIZE + CONFIG_NET_LL_GUARDSIZE)"

                tcp_poll()/udp_poll()/pkt_poll()/...(l3|l4)
                           /              \
                          /                \
devif_poll_[l3|l4]_connections()     devif_iob_send() (nocopy:udp/icmp/...)
           /                                   \      (copy:tcp)
          /                                     \
  devif_iob_poll("NIC"_txpoll)                callback() // "NIC"_txpoll
                                                  |
                                             "NIC"_send()
                          (dev->d_iob->io_data[CONFIG_NET_LL_GUARDSIZE - NET_LL_HDRLEN(dev)])

RX:

  [tcp|udp|icmp|...]ipv[4|6]_data_handler()(iob_concat/append to readahead)
                    |
                    |
      [tcp|udp|icmp|...]_ipv[4|6]_in()/...
                    |
                    |
          pkt/ipv[4/6]_input()/...
                    |
                    |
     NICs io vector receive(iov_base to io_data)

--------------------------------------------------------------------

3> Compatible with all old flat buffer NICs

TX:
                tcp_poll()/udp_poll()/pkt_poll()/...(l3|l4)
                           /              \
                          /                \
devif_poll_[l3|l4]_connections()     devif_iob_send() (nocopy:udp/icmp/...)
           /                                   \      (copy:tcp)
          /                                     \
  devif_iob_poll(devif_poll_callback())  devif_poll_callback() /* new interface, gather iobs to flat buffer */
       /                                           \
      /                                             \
 devif_poll("NIC"_txpoll)                     "NIC"_send()(dev->d_buf)

RX:

  [tcp|udp|icmp|...]ipv[4|6]_data_handler()(iob_concat/append to readahead)
                    |
                    |
      [tcp|udp|icmp|...]_ipv[4|6]_in()/...
                    |
                    |
               netdev_input()  /* new interface, Scatter/gather flat/iob buffer */
                    |
                    |
          pkt/ipv[4|6]_input()/...
                    |
                    |
    NICs io vector receive(Orignal flat buffer)

3. Iperf passthrough on NuttX simulator:

  -------------------------------------------------
  |  Protocol      | Server | Client |            |
  |-----------------------------------------------|
  |  TCP           |  813   |   834  |  Mbits/sec |
  |  TCP(Offload)  | 1720   |  1100  |  Mbits/sec |
  |  UDP           |   22   |   757  |  Mbits/sec |
  |  UDP(Offload)  |   25   |  1250  |  Mbits/sec |
  -------------------------------------------------

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-03 11:47:04 +08:00
chao an
3caa551ff4 net: remove psock reference from connect 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-24 22:57:42 +08:00
dongjiuzhu1
e6f8ccda4a net/get/setsockopt: add si_get/setsockopt interface to simply get/setsockopt 
move private option to protocol sockif

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2022-11-23 15:01:54 +08:00
chao an
a8d3286258 net: move device buffer define to common header 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-10-28 00:32:16 -04:00
anjiahao
5724c6b2e4 sem:remove sem default protocl 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2022-10-22 14:50:48 +08:00
raiden00pl
2b0ce033d7 net/can/can_xxxsockopt.c: correct the code alignment 2022-10-21 16:24:13 -03:00
anjiahao
d1d46335df Replace nxsem API when used as a lock with nxmutex API 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-10-17 15:59:46 +09:00
raiden00pl
d8e329231f let NET_CAN_RAW_FILTER_MAX depends on NET_CANPROTO_OPTIONS to prevent compiler errors 2022-10-05 07:56:54 +08:00
Xiang Xiao
40ef5bc6db libc: Move queue.h from include to include/nuttx 
to avoid the conflict with libuv's queue.h

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-09-26 08:04:58 +02:00
wangbowen6
344c8be049 poll: add poll_notify() api and call it in all drivers 
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2022-09-26 12:06:32 +08:00
chao.an
162fcd10ca net: cleanup pvconn reference to avoid confuse 
More reference:
https://github.com/apache/incubator-nuttx/pull/5252
https://github.com/apache/incubator-nuttx/pull/5434

Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-08-26 20:58:11 +08:00
Xiang Xiao
ba9486de4a iob: Remove iob_user_e enum and related code 
since it is impossible to track producer and consumer
correctly if TCP/IP stack pass IOB directly to netdev

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-08-15 08:41:20 +03:00
Peter van der Perk
b3590f00b3 NXStyle and preprocessor fixes 
Co-authored-by: Jari van Ewijk <jari.vanewijk@nxp.com>
 2022-07-25 23:47:05 +08:00
Jari van Ewijk
51a845ce54 SocketCAN: add non-blocking write 
Co-authored-by: Peter van der Perk <peter.vanderperk@nxp.com>
 2022-07-25 23:47:05 +08:00
JacobCrabill
3ddc019f8e net: Fix typos, update comments in Kconfigs 2022-05-06 08:54:58 +02:00
JacobCrabill
0a6181f4d7 net/can: Fix CONFIG errors in can_recvmsg 2022-05-06 08:54:58 +02:00
JacobCrabill
4610aee973 net/netdev: Add CONFIG_NETDEV_CAN_FILTER_IOCTL 2022-05-06 08:54:58 +02:00
Xiang Xiao
7598070508 net: Remove the unnecessary initialization code 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-03-12 19:24:17 +02:00
raiden00pl
cbbe1c661e net/can/can_recvmsg.c: fix unused variable 'conn' error 2022-02-14 10:42:01 +08:00
raiden00pl
5b678ab12e net/can/can_setsockopt.c: fix assertion, value can be NULL 2022-02-13 23:16:00 +08:00
chao.an
98833affd0 net/can: remove psock reference from can connect 
remove the psock back reference since timestamp
has been migrated to can_conn_s

Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-02-11 21:22:55 +08:00
chao.an
0d19a3a248 net/inet: move socket timestamp into socket_conn_s 
Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-02-10 15:04:33 -03:00
chao.an
99cde13a11 net/inet: move socket flags into socket_conn_s 
Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-02-10 15:04:33 -03:00
chao.an
43ca28da36 net/can: replace the common connect prologue 
Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-02-10 15:04:33 -03:00
raiden00pl
bc178344a9 net/can: add an option to control CAN EXTID support 2022-02-06 17:09:11 +08:00
raiden00pl
a8ca1ec026 SocketCAN: add CAN error definitions 2022-01-05 18:32:46 +08:00
chao.an
504f1d1b5f net/misc: add support for CONFIG_NET_ALLOC_CONNS 
Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-01-04 14:36:07 +08:00
raiden00pl
649619b8f8 net/can/can_recvmsg.c: fix warning 2022-01-03 08:52:49 -03:00
Petro Karashchenko
51a2db6ffc Kconfig: improve uniformity 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2021-12-14 07:32:48 -06:00
Alexander Lunev
1e25602678 net/can,icmp,icmpv6,tcp,tcp_timer,udp: device should poll only those connections that are bound to the device. 
tcp_timer: eliminated false decrements of conn->timer in case of multiple network adapters.
The false timer decrements sometimes provoked TCP spurious retransmissions due to premature timeouts.
 2021-10-11 23:09:00 -07:00
Alexander Lunev
36fbedcbfc net/devif/devif_callback.c: corrected the connection event list to work as FIFO instead of LIFO. 
In case of enabled packet forwarding mode, packets were forwarded in a reverse order
because of LIFO behavior of the connection event list.
The issue exposed only during high network traffic. Thus the event list started to grow
that resulted in changing the order of packets inside of groups of several packets
like the following: 3, 2, 1, 6, 5, 4, 8, 7 etc.

Remarks concerning the connection event list implementation:
* Now the queue (list) is FIFO as it should be.
* The list is singly linked.
* The list has a head pointer (inside of outer net_driver_s structure),
  and a tail pointer is added into outer net_driver_s structure.
* The list item is devif_callback_s structure.
  It still has two pointers to two different list chains (*nxtconn and *nxtdev).
* As before the first argument (*dev) of the list functions can be NULL,
  while the other argument (*list) is effective (not NULL).
* An extra (*tail) argument is added to devif_callback_alloc()
  and devif_conn_callback_free() functions.
* devif_callback_alloc() time complexity is O(1) (i.e. O(n) to fill the whole list).
* devif_callback_free() time complexity is O(n) (i.e. O(n^2) to empty the whole list).
* devif_conn_event() time complexity is O(n).
 2021-09-18 21:01:39 -05:00
Gustavo Henrique Nihei
330eff36d7 sourcefiles: Fix relative path in file header 2021-03-09 23:18:28 +08:00
Peter Bee
e223f60c09 net/socket: move si_send/recv into sendmsg/recvmsg 
Implement si_send/sendto/recvfrom with si_sendmsg/recvmsg, instead of
the other way round.

Change-Id: I7b858556996e0862df22807a6edf6d7cfe6518fc
Signed-off-by: Peter Bee <bijunda1@xiaomi.com>
 2021-03-05 04:46:13 -08:00
Jiuzhu Dong
4d5a964f29 net: unify socket into file descriptor 
Change-Id: I9bcd21564e6c97d3edbb38aed1748c114160ea36
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2021-03-03 19:01:41 -08:00
Alin Jerpelea
37d5c1b0d9 net: Author Gregory Nutt: update licenses to Apache 
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-02-20 00:38:18 -08:00
Abdelatif Guettouche
6385408483 net/: Correct some comments. 
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
 2021-01-15 16:23:12 -05:00
Juha Niskanen
de1ad1fdb3 net: fix typos, incorrect comments, nxstyle 
Signed-off-by: Juha Niskanen <juha.niskanen@haltian.com>
 2020-12-13 09:06:28 -06:00
John Bampton
ba12c6c0cf Fix spelling 2020-12-12 19:18:08 +01:00
chao.an
049c991d28 style/Kconfig: remove unnecessary trailing whitespace 
N/A

Signed-off-by: chao.an <anchao@xiaomi.com>
 2020-11-28 12:20:30 +01:00
YAMAMOTO Takashi
26e1e4c74c net/can/can_getsockopt.c: Fix type mismatches 2020-11-16 08:29:00 -08:00
Peter van der Perk
ba5fe5cee3 SocketCAN: Fixed dropping timestamped frames when running in CAN2.0B 2020-06-17 15:17:38 -07:00
Peter van der Perk
4eecf8561f FlexCAN interrupt fixes, old compiler fixes 
SocketCAN old compiler fix
 2020-06-16 15:35:43 -03:00
Ouss4
c8d83e0a88 net/can/can_setsockopt&can_getsockopt.c: Initialiaze ret variable to 
eliminate any warning.
 2020-06-15 12:20:32 -06:00
Ouss4
155903fc54 net/can/can.h: Add can_setsockopt and can_getsockopt prototypes. 2020-06-15 12:20:32 -06:00
Peter van der Perk
55d9e5f7af net: Add SocketCAN support 2020-06-15 08:07:19 -06:00