kernel/linux.git/net/mac802154/main.c, branch v6.2

mac802154: Allow the creation of coordinator interfaces

2022-11-01T10:23:38+00:00

As a first strep in introducing proper PAN management and association, we need to be able to create coordinator interfaces which might act as coordinator or PAN coordinator. Hence, let's add the minimum support to allow the creation of these interfaces. Even though the necessary logic to handle several interfaces on the same device is added to make this future move easier, in practice only several interfaces of type MONITOR are allowed at the same time. The other combinations are not allowed (interface creation is possible but only one can be opened at a time) because, with a single PHY featuring a single set of address filters, we cannot afford handling two distinct interfaces (with different address filters or filtering requirements): * Having 2 NODEs, 2 COORDs or 1 NODE + 1 COORD -> cannot work because the address filters would be different * Having 1 MONITOR + either 1 NODE or 1 COORD -> cannot work because the filtering levels are incompatible Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20221026093502.602734-4-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt

net: mac802154: Rename the main tx_work struct

2022-06-10T07:48:40+00:00

This entry is dedicated to synchronous transmissions done by drivers without async hook. Make this clearer that this is not a work that any driver can use by at least prefixing it with "sync_". While at it, let's enhance the comment explaining why we choose one or the other. Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20220519150516.443078-3-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt

net: mac802154: Rename the synchronous xmit worker

2022-06-10T07:48:40+00:00

There are currently two driver hooks: one is synchronous, the other is not. We cannot rely on driver implementations to provide a synchronous API (which is related to the bus medium more than a wish to have a synchronized implementation) so we are going to introduce a sync API above any kind of driver transmit function. In order to clarify what this worker is for (synchronous driver implementation), let's rename it so that people don't get bothered by the fact that their driver does not make use of the "xmit worker" which is a too generic name. Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20220519150516.443078-2-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt

net: mac802154: Fix symbol durations

2022-04-30T18:29:47+00:00

There are two major issues in the logic calculating the symbol durations based on the page/channel: - The page number is used in place of the channel value. - The BIT() macro is missing because we want to check the channel value against a bitmask. Fix these two errors and apologize loudly for this mistake. Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20220428164140.251965-1-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt

net: mac802154: Set durations automatically

2022-02-10T14:41:58+00:00

As depicted in the IEEE 802.15.4 specification, modulation/bands are tight to a number of page/channels so we can for most of them derive the durations automatically. The two locations that must call this new helper to set the variou symbol durations are: - when manually requesting a channel change though the netlink interface - at PHY creation, once the device driver has set the default page/channel If an information is missing, the symbol duration is not touched, a debug message is eventually printed. This keeps the compatibility with the unconverted drivers for which it was too complicated for me to find their precise information. If they initially provided a symbol duration, it would be kept. If they don't, the symbol duration value is left untouched. Once the symbol duration derived, the lifs and sifs durations are updated as well. Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20220201180629.93410-4-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt

net: mac802154: Convert the symbol duration into nanoseconds

2022-02-10T14:41:58+00:00

Tdsym is often given in the spec as pretty small numbers in microseconds and hence was reflected in the code as symbol_duration and was stored as a u8. Actually, for UWB PHYs, the symbol duration is given in nanoseconds and are as precise as picoseconds. In order to handle better these PHYs, change the type of symbol_duration to u32 and store this value in nanoseconds. All the users of this variable are updated in a mechanical way. Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20220201180629.93410-3-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt

net: mac802154: convert tasklets to use new tasklet_setup() API

2020-11-07T18:40:56+00:00

In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Acked-by: Stefan Schmidt Signed-off-by: Romain Perier Signed-off-by: Allen Pais Signed-off-by: Jakub Kicinski

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30T18:26:41+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman

mac802154: Fixes kernel oops when unloading a radio driver

2016-02-23T19:29:40+00:00

Destroying the workqueue before unregistering the net device caused a kernel oops Signed-off-by: Koen Zandberg Acked-by: Alexander Aring Signed-off-by: Marcel Holtmann

mac802154: change frame_retries behaviour

2015-08-10T18:43:06+00:00

This patch changes the default minimum value of frame_retries to 0 and changes the frame_retries default value to 3 which is also 802.15.4 default. We don't use the frame_retries "-1" value as indicator for no-aret mode anymore, instead we checking on the ack request bit inside the 802.15.4 frame control field. This allows a acknowledge handling per frame. This checking is done by transceiver or inside xmit callback of driver layer. If a transceiver doesn't support ARET handling the transmit functionality ignores ack frames then, which isn't well but should not effect anything of current functionality. Reviewed-by: Stefan Schmidt Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann