This makes the user interface a little hostile. People thing of an MTU of 1500 bytes, but the corresponding packet is really 1514 bytes (including the 14 byte Ethernet header). A more friendly solution would configure the MTU (as before), but then derive the packet buffer size by adding the MAC header length. Instead, we define the packet buffer size then derive the MTU.
The MTU is not common currency in networking. On the wire, the only real issue is the MSS which is derived from MTU by subtracting the IP header and TCP header sizes (for the case of TCP). Now it is derived for the PKTSIZE by subtracting the IP header, the TCP header, and the MAC header sizes. So we should be all good and without the recurring 14 byte error in MTU's and MSS's.
Squashed commit of the following:
Trivial update to fix some spacing issues.
net/: Rename several macros containing _MTU to _PKTSIZE.
net/: Rename CONFIG_NET_SLIP_MTU to CONFIG_NET_SLIP_PKTSIZE and similarly for CONFIG_NET_TUN_MTU. These are not the MTU which does not include the size of the link layer header. These are the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename CONFIG_NET_6LOWPAN_MTU to CONFIG_NET_6LOWPAN_PKTSIZE and similarly for CONFIG_NET_TUN_MTU. These are not the MTU which does not include the size of the link layer header. These are the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename CONFIG_NET_ETH_MTU to CONFIG_NET_ETH_PKTSIZE. This is not the MTU which does not include the size of the link layer header. This is the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename the file d_mtu in the network driver structure to d_pktsize. That value saved there is not the MTU. The packetsize is the memory large enough to hold the maximum packet PLUS the size of the link layer header. The MTU does not include the link layer header.
RNDIS support on STM32F4Discovery
* stm32f4discovery: Add stm32_netinit.c to avoid a compilation error
* stm32f4discovery: Add rndis initialization in stm32_bringup.c
NOTE: MAC address for the host side starts 0xaa. This assignment
scheme should be fixed later.
* stm32f4discovery: Add rndis configuration
NOTE: STM32F4Discovery + DM-STF4BB
* drivers/usbdev/rndis.c: Fix some issues in rndis.c
Introduce rndis_transmit() and change rndis_rxdispatch() to avoid
packet corruption. Introduce max packet size for dual speed which
is mainly used for high speed mode. Fix adjusting MTU warning
on Linux host. Fix data corruption if a packet size excceds MTU.
NOTE: Max packet size is not configured dynamically. This should
be fixed in the future version.
* stm32f4discovery: Modify #ifdef condition for rndis in stm32_bringup()
* drivers/usbdev/rndis.c: Change HPWORK to ETHWORK
* drivers/usbdev/rndis.c: Merge the commit 07b98ccbb5
Previous commit b09365784a was based on old rndis.c thus resulted
in reverting the commit 07b98ccbb5. This change merges the commit.
NOTE: In the commit 07b98ccbb5, max packet size of bulkout was
assumed to be 64. In this commit, priv->epbulkout->maxpacket is
used instead.
Approved-by: Gregory Nutt <gnutt@nuttx.org>
This commit backs out most of commit b4747286b1. That change was added because sem_wait() would sometimes cause cancellation points inappropriated. But with these recent changes, nxsem_wait() is used instead and it is not a cancellation point.
In the OS, all calls to sem_wait() changed to nxsem_wait(). nxsem_wait() does not return errors via errno so each place where nxsem_wait() is now called must not examine the errno variable.
In all OS functions (not libraries), change sem_wait() to nxsem_wait(). This will prevent the OS from creating bogus cancellation points and from modifying the per-task errno variable.
sched/semaphore: Add the function nxsem_wait(). This is a new internal OS interface. It is functionally equivalent to sem_wait() except that (1) it is not a cancellation point, and (2) it does not set the per-thread errno value on return.
sched/semaphore: Add nxsem_post() which is identical to sem_post() except that it never modifies the errno variable. Changed all references to sem_post in the OS to nxsem_post().
sched/semaphore: Add nxsem_destroy() which is identical to sem_destroy() except that it never modifies the errno variable. Changed all references to sem_destroy() in the OS to nxsem_destroy().
libc/semaphore and sched/semaphore: Add nxsem_getprotocol() and nxsem_setprotocola which are identical to sem_getprotocol() and set_setprotocol() except that they never modifies the errno variable. Changed all references to sem_setprotocol in the OS to nxsem_setprotocol(). sem_getprotocol() was not used in the OS
libc/semaphore: Add nxsem_getvalue() which is identical to sem_getvalue() except that it never modifies the errno variable. Changed all references to sem_getvalue in the OS to nxsem_getvalue().
sched/semaphore: Rename all internal private functions from sem_xyz to nxsem_xyz. The sem_ prefix is (will be) reserved only for the application semaphore interfaces.
libc/semaphore: Add nxsem_init() which is identical to sem_init() except that it never modifies the errno variable. Changed all references to sem_init in the OS to nxsem_init().
sched/semaphore: Rename sem_tickwait() to nxsem_tickwait() so that it is clear this is an internal OS function.
sched/semaphoate: Rename sem_reset() to nxsem_reset() so that it is clear this is an internal OS function.
drivers/usbdev/cdcacm.c: Change design for queuing RX packets that cannot be processed. Previous design had a logic problem that could cause data loss.
drivers/usbdev/cdcacm: Fixes one of two know design issues.
drivers/usbdev/cdcacm: First attempt to plug data leak in input flow control design. Still missing a few things.
commit 69fcf3e849
Author: Alan Carvalho de Assis <acassis@gmail.com>
Date: Sun Jul 16 08:39:33 2017 -0600
Fix spark/stm32_composite.c: board_composite_connect cannot be static
commit 28eb253401
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sun Jul 16 08:36:01 2017 -0600
Composite: Final review for coding style before merge
commit e6af1b9994
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sun Jul 16 07:41:38 2017 -0600
Composite: Simplify some intiialization of data structures.
commit 771c367411
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sun Jul 16 07:15:08 2017 -0600
Cosmetic changes to alignment.
commit 5d67ddda4e
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sun Jul 16 07:00:48 2017 -0600
USBMSC: Add missing logic to saved device description.
commit 0729151d29
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 17:11:41 2017 -0600
Trivial, costmetic
commit 74b916ff84
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 14:50:29 2017 -0600
Composite: Private functions need to be marked static. Move static functions out of 'Public Functions' to 'Private Functions' where they belong. Disable composite configuration 1 in all STM32 F1 configurations.
commit cfaa4ece13
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 13:20:34 2017 -0600
Add some comments.
commit 8143563be6
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 12:33:10 2017 -0600
Spark: Need to condition out MSC logic in composite setup if there is no MSC in the composite.
commit 69d3a91ef1
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 11:03:33 2017 -0600
Composite: Remove all dependencies on CONFIG_SYSTEM_COMPOSITE_* configuration settings. Nothing in the OS can depend on external application settings.
commit 55a4388bbd
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 09:59:31 2017 -0600
All composite configurations now also support a dual CDC/ACM configuration.
commit 428f2147af
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 09:24:32 2017 -0600
Composite: Move board_msc* interfaces from apps/system/composite to the board specific OS logic where they belong.
commit f1cc168a5c
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 08:56:33 2017 -0600
Refresh all composite configurations.
commit 246afcaa10
Merge: 919877191d02c6672868
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 08:22:26 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 919877191d
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jul 15 08:20:02 2017 -0600
Composite setup: Remove useless board_cdc* wrapper.
commit 82129cf8c6
Merge: f2cb8b252a6537e4ea20
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jul 14 16:23:57 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit f2cb8b252a
Author: Alan Carvalho de Assis <acassis@gmail.com>
Date: Fri Jul 14 10:19:35 2017 -0600
Composite: Fix for another cloned typo.
commit 676cfd526a
Author: Alan Carvalho de Assis <acassis@gmail.com>
Date: Fri Jul 14 09:11:37 2017 -0600
Composite: Fix some typos
commit 1ea0368c18
Author: Alan Carvalho de Assis <acassis@gmail.com>
Date: Fri Jul 14 09:10:18 2017 -0600
Composite: ./stm3210e-eval/src/stm32_composite.c
commit e485caced9
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jul 14 09:08:17 2017 -0600
Composite: I don't think the original code should have forced minor=0.
commit 6443c29621
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jul 14 07:15:38 2017 -0600
Composite: Flesh out support for all of other configurations that support composite.
commit 23cbc28b05
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jul 14 06:59:45 2017 -0600
Detangle use of board_xyzclassobject() and board_xyzuninitialize()
commit 1674cb8c8e
Merge: 6bc881a1925033a6def7
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jul 13 13:57:40 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 6bc881a192
Merge: fe3af4941d85b8d16d8c
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Tue Jul 11 12:24:07 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit fe3af4941d
Merge: 0f9ad16e181bc0eea143
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Mon Jul 10 11:07:36 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 0f9ad16e18
Merge: a4cd90d4efaa2e9c15a5
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jul 7 20:26:53 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit a4cd90d4ef
Merge: 8a4be7175e31f832d8c5
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Wed Jul 5 11:12:52 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 8a4be7175e
Merge: 18a32ed2caae1771454a
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jun 30 16:14:04 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 18a32ed2ca
Merge: aaa81ce4976d8df90b79
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 29 10:18:16 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit aaa81ce497
Merge: 4eb548226b8cb4636bb1
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Mon Jun 26 11:56:11 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 4eb548226b
Merge: 2327f5a1b4dc8eec0b61
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Mon Jun 19 17:27:00 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 2327f5a1b4
Merge: 49cd279fc699bf0b522b
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jun 16 17:30:03 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 49cd279fc6
Merge: bb6a13f30a46f86982ee
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Wed Jun 14 09:17:49 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit bb6a13f30a
Merge: 918480047aac93d4bda9
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Mon Jun 5 17:40:06 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 918480047a
Merge: e4d262436c4526cd665e
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Jun 3 08:52:31 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit e4d262436c
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jun 2 07:19:27 2017 -0600
SAMV71-Xult Composite: Now can switch between two different composite configurations dynamically.
commit 815257743d
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Jun 2 07:11:57 2017 -0600
usbdev composite and SAMV7-Xult: Move board-specific USB composite configuration out of boardctl.c and into board-specific logic where it belongs. Add a configuration option to the boardctl() calls to support multiple composite device configurations dynamically.
commit ac13619dc5
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 17:03:58 2017 -0600
Cosmetic
commit 9dd41bdd2f
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 17:02:43 2017 -0600
Composite: More compile-related fixes
commit fc1438c95d
Merge: 049ccbfcbeff2b54a5e0
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 16:35:41 2017 -0600
Merge remote-tracking branch 'origin/master' into composite
commit 049ccbfcbe
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 16:35:16 2017 -0600
Composite: Add some structure definitions missed in first application of the patch.
commit ef33329e3a
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 16:14:46 2017 -0600
Add a warning
commit 89f77cd91a
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 16:11:27 2017 -0600
Fix some incomplete name changes
commit 0bb7af549a
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 15:09:50 2017 -0600
It is unnecessary to pack a structure that consists only of uint8_t data fields.
commit bd9b548914
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Thu Jun 1 15:05:41 2017 -0600
Remove COMPILE_TIME_ASSERTION
commit 7e6f481581
Author: Frank Benkert <Frank.Benkert@avat.de>
Date: Thu Jun 1 14:58:04 2017 -0600
Part II of the same big commit
commit dcc9b07715
Author: Frank Benkert <Frank.Benkert@avat.de>
Date: Thu Jun 1 14:08:22 2017 -0600
[[This is part 1 or several commits]]
We developed a huge Changeset over a year ago to make USB Composite configuration dynamical and be able to instanciate the CDCACM multiple times inside this device. We use this feature to switch between one in normal and up to three CDCACMs in maintenance boot.
The control path starts in “boardctl.c” where the configuration for the device is constructed. There are still a few issues which I’ll ask you to have a look at before this beast can be merged.
1. To be able to construct the data dynamically I have changed some USB-Structs to be packed. Maybe there are additional structs to change (just for completeness – not for current functionality).
2. I’ve added the Macro “COMPILE_TIME_ASSERTION” two times (in usbmsc_desc.c and in cdcacm_desc.c) to stay private. Maybe you’ll find a better place. It’s used to check the size of the structs against the assumptions.
3. I’ve changed the interface for some USB-Functions to receive also the dynamic configuration. Maybe this can be done more elegant.
4. The original NuttX (without the patch) seems to have problems with a Composite device holding a CDCACM and an MSC. The “USB SET CONFIGURATION” request does not to work at all. This makes the test fail under Windows and under Linux. Applying this patch doesn’t change anything – because it only changes the configuration – not the behavior. Maybe you’ll have a look at this problem before applying the patch.
