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116 Commits

Author SHA1 Message Date
Masayuki Ishikawa
dc454765fb Revert "add holder for mutex" 
This reverts commit fc176addeb.
 2023-01-19 06:04:48 +09:00
lilei19
fc176addeb add holder for mutex 
Signed-off-by: lilei19 <lilei19@xiaomi.com>
 2023-01-18 17:40:58 +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
chengkai
f864e5f657 wireless/bluetooth: add interrupt_context hander for netsnoop 
Signed-off-by: chengkai <chengkai@xiaomi.com>
 2023-01-10 18:08:22 +08:00
wangjunfeng0
b2b014df0b Remove redundant length checking 
Signed-off-by: wangjunfeng0 <wangjunfeng3@xiaomi.com>
 2022-12-14 21:20:14 +08:00
chao an
62004a28a6 net/d_buf: remove d_buf reference from l3/l4 
l3/l4 stack will decouple the reference of d_buf gradually, Only legacy
devices still retain d_buf support, new net devices will use d_iob

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-12-04 20:37:14 +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
4281acdb83 net/chksum: move all chksum api declarations to common header 
The following APIs need to be overriden by the arch after enabling
CONFIG_NET_ARCH_CHKSUM, move these functions to the common header
file to avoid prototype conflicts

uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len);
uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
uint16_t ipv4_upperlayer_chksum(FAR struct net_driver_s *dev, uint8_t proto);
uint16_t ipv6_upperlayer_chksum(FAR struct net_driver_s *dev,
                                uint8_t proto, unsigned int iplen);
uint16_t ipv4_chksum(FAR struct ipv4_hdr_s *ipv4);

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-30 15:08:14 +08:00
liyi
391b501639 net: extract l3 header build code into new functions 
Signed-off-by: liyi <liyi25@xiaomi.com>
 2022-11-29 18:36:15 +08:00
chao an
6898409d04 net/icmp[v6]: ICMP[v6]_NO_STACK should not depends on NET_IPv4/6 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-20 08:16:20 -03:00
zhanghongyu
ab15887a0b tcp: find bound device when laddr is ANY 
icmp: find bound device when s_boundto is not zero

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
 2022-11-12 18:36:09 +08:00
Zhe Weng
66bc2ffbe6 net/utils: add net_chksum_adjust defined by RFC3022 
net_chksum_adjust is used for fast checksum adjustment after modifying some fields in a network packet. Will be used in NAT.

Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
 2022-11-02 21:25:01 +01:00
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
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
chengkai
841d8f5b37 net:add btsnoop and snoop 
Signed-off-by: chengkai <chengkai@xiaomi.com>
 2022-08-24 21:42:30 +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
Xiang Xiao
1fb8c13e5e Replace nxsem_timedwait_uninterruptible with nxsem_tickwait_uninterruptible 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-05-15 13:55:58 +03:00
Petro Karashchenko
e88a357fa7 net/utils: fix IPv4 checksum calculation 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-04-04 07:40:28 +09:00
hejianliang3
e9648d8a73 net:fix coverity warning 
Signed-off-by: hejianliang3 <hejianliang3@xiaomi.com>
 2022-04-03 14:37:53 +03:00
Petro Karashchenko
68902d8732 pid_t: unify usage of special task IDs 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-03-22 21:22:32 +08:00
Xiang Xiao
9c1fc8da4e net: Remove net_lockinitialize 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-03-12 19:24:17 +02:00
chao.an
a92d5f622e net/ioballoc: add support of alloc with timeout net_iobtimedalloc() 
Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-02-17 21:27:39 +01:00
Petro Karashchenko
08043fb5bc net: unify FAR keyword usage for all net buffer memory mapped buffers 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-01-20 01:42:56 +08:00
Petro Karashchenko
9551de7115 net: use HTONS, NTOHS, HTONL, NTOHL macro in kernel code 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-01-18 10:59:47 +01:00
chao.an
3b69d09c80 net/udp/icmp: correct the unreadchable handling 
Reference RFC1122:
https://datatracker.ietf.org/doc/html/rfc1122
----------------------------------------------

4.1.3  SPECIFIC ISSUES

  4.1.3.1  Ports

    If a datagram arrives addressed to a UDP port for which
    there is no pending LISTEN call, UDP SHOULD send an ICMP
    Port Unreachable message.

Signed-off-by: chao.an <anchao@xiaomi.com>
 2021-11-26 08:47:54 -06:00
Masayuki Ishikawa
3330543fe6 net: utils: Remove critical section for SMP in net_lock.c 
Summary:
- The critical section was added in Mar 2018 to improve
  stability in SMP mode
- However, I noticed that this critical section is no longer
  needed

Impact:
- None

Testing:
- Tested with spresense:wifi_smp and spresense:rndis_smp

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
 2021-09-06 14:57:08 +08:00
YAMAMOTO Takashi
0272a16010 net_ioballoc: remove redundant critical section 2021-08-05 23:50:46 -07:00
Alin Jerpelea
08e5378b11 NuttX: Gregory Nutt: update licenses to Apache 
Several licenses were missed in the initial work

David Sidrane has submitted the ICLA and we can migrate the 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>
 2021-04-03 04:20:31 -07:00
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
Xiang Xiao
2956b8516b Fix nxstyle warning 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-10-20 01:45:06 -07:00
Xiang Xiao
eb4121ce38 Change all 'Nuttx' to 'NuttX' 
Unify the naming convention

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-10-20 01:45:06 -07:00
Peter van der Perk
55d9e5f7af net: Add SocketCAN support 2020-06-15 08:07:19 -06:00
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
c1b0aa118c Remove psock_send and sockfd_socket from net/socket/socket.h 
Since both is already declared in include/nuttx/net/net.h and fix other minor issue in network socket layer.
 2020-01-31 13:45:15 -06:00
Xiang Xiao
68951e8d72 Remove exra whitespace from files (#189) 
* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines
 2020-01-31 09:24:49 -06:00
Xiang Xiao
b80fb6befc net/utils: Fix the wrong mask calculation in net_ipv6_pref2mask 2020-01-30 07:47:07 -06:00
Xiang Xiao
174df6b793 net/utils/net_dsec2tick.c: Rturn type should unsigned int 2020-01-30 07:45:14 -06:00
Xiang Xiao
affc32c9d1 net/: Fix net checksum related issue 
1. Remove the unused and unimplemented ipv6_chksum declaration
2. Update NET_ARCH_CHKSUM description to align with the implementation
3. Declare all checksum function prototype regardless CONFIG_NET_ARCH_CHKSUM
4. Remove the CONFIG_NET_ARCH_CHKSUM guard for tcp_ipv[4|6]_chksum
 2020-01-30 07:44:36 -06:00
Xiang Xiao
5c5c08efcd network: simplify the timeout process logic 
1.Consolidate absolute to relative timeout conversion into one place(_net_timedwait)
2.Drive the wait timeout logic by net_timedwait instead of devif_timer
This patch help us remove devif_timer(period tick) to save the power in the future.

Change-Id: I534748a5d767ca6da8a7843c3c2f993ed9ea77d4
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-01-11 08:24:49 -06:00
Xiang Xiao
6a3c2aded6 Fix wait loop and void cast (#24) 
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
 2020-01-02 10:54:43 -06:00
Gregory Nutt
a52ceac13e net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options. 2019-08-31 12:25:30 -06:00
Anthony Merlino
70404ed0dc Merged in antmerlino/nuttx/iobinstrumentation (pull request #1001) 
Iobinstrumentation

* mm/iob: Introduces producer/consumer id to every iob call. This is so that the calls can be instrumented to monitor the IOB resources.

* iob instrumentation - Merges producer/consumer enumeration for simpler IOB user.

* fs/procfs: Starts adding support for /proc/iobinfo

* fs/procfs: Finishes first pass of simple IOB user stastics and /proc/iobinfo entry

Approved-by: Gregory Nutt <gnutt@nuttx.org>
 2019-08-16 22:42:25 +00:00
Gregory Nutt
1346f29151 net/: Fix alignment and spacing problems found by tools/nxstyle. 2019-07-02 18:02:23 -06:00
Gregory Nutt
c999d12bba net/utils: net_lock() and net_restorelock() not return a value. That values is the standard zero on success; negated errno value on failure. This return value is only needed for -ECANCELED. That cancellation indication needs to ripple all the way back to the highest levels where the cancellation can be acted on. This commit only adds the return value; it does not add checking for the return values of net_lock() and net_restorelock() at higher levels. That is required too. 2019-04-14 09:37:25 -06:00
Gregory Nutt
f6b00e1966 tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle. 2019-03-11 12:48:39 -06:00
Gregory Nutt
22de66d553 arch/arm/src/max326xx/max32660/max32660_wdt.c: Fix alarm delay calculation. 2018-11-21 17:54:36 -06:00
Gregory Nutt
33ed27ae65 Squashed commit of the following: 
net/mld: Checksum calculation needs to know the full size of the IPv6 header, including the size of the extension headers.  The payload size in the IPv64 header must include the extension headers (not considered part of the header in this case).  Fixes a few additional errors in size, endian-ness and checksum calculations.  Wireshark now reports the the outgoing Report has a good checksum.

    net/mld/mld_query.c:  Add a cast to assure that the left shift does not overflow.
 2018-11-05 08:56:07 -06:00
Gregory Nutt
88130a996a net/: Fixes for more coding standard issues detected by nxstyle. 2018-10-29 18:00:30 -06:00
Gregory Nutt
6571d4fa37 Update some comments. 2018-07-07 15:23:46 -06:00