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168 Commits

Author SHA1 Message Date
Fotis Panagiotopoulos
3c54d82d81 net: Fix task block when devif_send fails. 
When a task needs to send data, a callback is allocated and the
transmission is happening in a worker task through devif_send.
Synchronization between the two tasks (sender & worker) is
achieved by a semaphore.

If devif_send fails, this semaphore was never posted, leaving
the sending task blocked indefinitely. This commit fixes this
by checking the return code of netif_send, and posting this
semaphore in case of failure.

Polling then stops, and execution is resumed on the sending
task.
 2023-06-01 17:05:54 +08:00
zhanghongyu
91e13c47ae net: remove conn-related casts 
remove redundant casts associated with psock

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2023-05-10 19:32:09 -03:00
Zhe Weng
0e018308a3 net/pkt: Add readahead queue for pkt, call input for tx on sim 
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
 2023-03-08 23:09:25 +02:00
Xiang Xiao
3c3dea5d7a net: Make si_poll callback optional 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-03-06 20:58:27 +02:00
Xiang Xiao
c39be172da net: Make si_accept callback optional 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-03-06 20:58:27 +02:00
Xiang Xiao
5dd037c599 net: Make si_connect callback optional 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-03-06 20:58:27 +02:00
Xiang Xiao
a97e2523a4 net: Make si_listen callback optional 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-03-06 20:58:27 +02:00
Xiang Xiao
2553b7701c net: Remove the empty si_getpeername implementation 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-03-06 20:58:27 +02:00
Xiang Xiao
9b3715050b net: Make si_getsockname callback optional 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-03-06 20:58:27 +02:00
Fotis Panagiotopoulos
5e625b9cdb Performance optimizations in connection allocations. 2023-02-28 14:23:16 +01:00
Xiang Xiao
2c5f653bfd Remove the tail spaces from all files except Documentation 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-02-26 13:24:24 -08:00
Fotis Panagiotopoulos
74bb921a19 Improvements in packet connections allocation. 2023-02-20 09:06:46 +08:00
SPRESENSE
277e0b941a include/sys/socket.h: Add SOCK_CTRL to socket type 
SOCK_CTRL is added to provide special control over network drivers
and daemons. Currently, SOCK_DGRAM and SOCK_STREAM perform this control,
but these use socket resources. In the case of usersocket in particular,
this is a waste of the device's limited socket resources.
 2023-02-16 12:13:01 +09:00
Xiang Xiao
0ef073573a net: Remove protocol argument from si_setup callback 
since the implementor could get the same value from socket::s_proto

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-02-13 22:41:19 +08:00
Masayuki Ishikawa
3f3e090716 Revert "include/sys/socket.h: Add SOCK_CTRL to socket type" 
This reverts commit abba05a934.
 2023-02-09 09:13:14 +01:00
SPRESENSE
abba05a934 include/sys/socket.h: Add SOCK_CTRL to socket type 
SOCK_CTRL is added to provide special control over network drivers
and daemons. Currently, SOCK_DGRAM and SOCK_STREAM perform this control,
but these use socket resources. In the case of usersocket in particular,
this is a waste of the device's limited socket resources.
 2023-02-08 20:43:33 +08:00
Zhe Weng
1cf3147626 net/netdev: Avoid hardcoded guardsize when using d_iob 
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
 2023-01-18 14:41:07 +08:00
Xiang Xiao
a851ad84c3 net: consistent the net sem wait naming conversion 
to prepare the new mutex wait function

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-15 12:31:30 -03:00
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
82d67b201a net/offload: add offload support for pkt/arp 
1. add offload support for pkt/arp
2. Reset the d_buf to NULL if d_iob has released

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-04 01:34:30 +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
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
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
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
Xiang Xiao
8a265e274d Kconfig: Remove EXPERIMENTAL for features which is been around a long time 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-09-19 11:39:22 -03:00
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
Petro Karashchenko
b3cd9090d1 drivers/net: make sure that net driver d_buf is 16-bit aligned 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-08-05 22:21:37 +08:00
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
chao.an
63173dadbb net/pkt: replace the common connect prologue 
Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-02-10 15:04:33 -03:00
Petro Karashchenko
8d3bf05fd2 include: fix double include pre-processor guards 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-01-16 11:11:14 -03:00
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
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
Gregory Nutt
04c9079954 Back in 2007, an early network implementation was developed for NuttX. This early development was inspired largely by uIP 1.0 and recognition of that was noted in the then BSD license headers. Over the next 14 years, a new, much more advanced, original network was developed for NuttX. However, some references to Adam Dunkels were still present in the file headers. 
Because of this, it will take some time to detangle the licensing under net/.  Many new features, original features were added to the NuttX network.  Clearly, any references to Adam Dunkels in the files that implement these new features that have no counterpart in uIP 1.0 are errors.

This PR removes the references and converts the license headers to Apache 2.0 where possible.  The affected files include only (1) the implementation of IPv6 (including neighbor support under ICMPv6) and (2) Raw sockets.  Neither of these features are present in uIP 1.0 and the licenses can be freely updated.
 2021-09-17 21:49:44 -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
7e3d4a5f29 net: Remove duplicate forward references. 
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
 2021-01-16 07:39:04 -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
Peter van der Perk
55d9e5f7af net: Add SocketCAN support 2020-06-15 08:07:19 -06:00
Gregory Nutt
a569006fd8 sched/: Make more naming consistent 
Rename various functions per the quidelines of https://cwiki.apache.org/confluence/display/NUTTX/Naming+of+OS+Internal+Functions

    nxsem_setprotocol -> nxsem_set_protocol
    nxsem_getprotocol -> nxsem_get_protocol
    nxsem_getvalue -> nxsem_get_value
 2020-05-17 14:01:00 -03:00
Xiang Xiao
cde88cabcc Run codespell -w with the latest dictonary again 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-02-23 22:27:46 +01:00
Xiang Xiao
bd4e8e19d3 Run codespell -w against all files 
and fix the wrong correction
 2020-02-22 14:45:07 -06:00
Gregory Nutt
7409f57d40 net/pkt: Fix inconsistent use of FAR 
Also run all .c and .h files through nxstyle (with -m 0)
 2020-02-13 15:10:34 +08:00
Xiang Xiao
6e6c670190 Move _SF_BOUND and _SF_CONNECTED modification to common place 2020-01-31 13:45:14 -06:00
patacongo
3a3539f2be net/: Fix some new problems found by the current nxstyle with .c files in the net/ directory. (#92) 2020-01-13 21:26:04 +01:00