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781830c800
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 <miquel.raynal@bootlin.com> Acked-by: Alexander Aring <aahringo@redhat.com> Link: https://lore.kernel.org/r/20220201180629.93410-4-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
487 lines
11 KiB
C
487 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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*
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* Authors:
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* Alexander Aring <aar@pengutronix.de>
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*
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* Based on: net/mac80211/cfg.c
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*/
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#include <net/rtnetlink.h>
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#include <net/cfg802154.h>
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#include "ieee802154_i.h"
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#include "driver-ops.h"
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#include "cfg.h"
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static struct net_device *
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ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy,
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const char *name,
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unsigned char name_assign_type, int type)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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struct net_device *dev;
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rtnl_lock();
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dev = ieee802154_if_add(local, name, name_assign_type, type,
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cpu_to_le64(0x0000000000000000ULL));
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rtnl_unlock();
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return dev;
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}
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static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy,
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struct net_device *dev)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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ieee802154_if_remove(sdata);
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}
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#ifdef CONFIG_PM
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static int ieee802154_suspend(struct wpan_phy *wpan_phy)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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if (!local->open_count)
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goto suspend;
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ieee802154_stop_queue(&local->hw);
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synchronize_net();
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/* stop hardware - this must stop RX */
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ieee802154_stop_device(local);
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suspend:
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local->suspended = true;
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return 0;
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}
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static int ieee802154_resume(struct wpan_phy *wpan_phy)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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/* nothing to do if HW shouldn't run */
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if (!local->open_count)
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goto wake_up;
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/* restart hardware */
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ret = drv_start(local);
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if (ret)
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return ret;
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wake_up:
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ieee802154_wake_queue(&local->hw);
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local->suspended = false;
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return 0;
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}
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#else
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#define ieee802154_suspend NULL
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#define ieee802154_resume NULL
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#endif
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static int
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ieee802154_add_iface(struct wpan_phy *phy, const char *name,
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unsigned char name_assign_type,
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enum nl802154_iftype type, __le64 extended_addr)
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{
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struct ieee802154_local *local = wpan_phy_priv(phy);
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struct net_device *err;
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err = ieee802154_if_add(local, name, name_assign_type, type,
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extended_addr);
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return PTR_ERR_OR_ZERO(err);
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}
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static int
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ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
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{
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ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
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return 0;
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}
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static int
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ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy->current_page == page &&
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wpan_phy->current_channel == channel)
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return 0;
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ret = drv_set_channel(local, page, channel);
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if (!ret) {
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wpan_phy->current_page = page;
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wpan_phy->current_channel = channel;
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ieee802154_configure_durations(wpan_phy);
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}
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return ret;
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}
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static int
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ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
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const struct wpan_phy_cca *cca)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy_cca_cmp(&wpan_phy->cca, cca))
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return 0;
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ret = drv_set_cca_mode(local, cca);
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if (!ret)
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wpan_phy->cca = *cca;
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return ret;
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}
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static int
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ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy->cca_ed_level == ed_level)
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return 0;
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ret = drv_set_cca_ed_level(local, ed_level);
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if (!ret)
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wpan_phy->cca_ed_level = ed_level;
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return ret;
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}
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static int
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ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy->transmit_power == power)
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return 0;
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ret = drv_set_tx_power(local, power);
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if (!ret)
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wpan_phy->transmit_power = power;
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return ret;
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}
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static int
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ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le16 pan_id)
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{
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int ret;
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ASSERT_RTNL();
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if (wpan_dev->pan_id == pan_id)
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return 0;
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ret = mac802154_wpan_update_llsec(wpan_dev->netdev);
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if (!ret)
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wpan_dev->pan_id = pan_id;
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return ret;
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}
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static int
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ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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u8 min_be, u8 max_be)
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{
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ASSERT_RTNL();
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wpan_dev->min_be = min_be;
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wpan_dev->max_be = max_be;
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return 0;
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}
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static int
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ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le16 short_addr)
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{
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ASSERT_RTNL();
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wpan_dev->short_addr = short_addr;
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return 0;
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}
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static int
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ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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u8 max_csma_backoffs)
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{
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ASSERT_RTNL();
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wpan_dev->csma_retries = max_csma_backoffs;
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return 0;
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}
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static int
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ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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s8 max_frame_retries)
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{
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ASSERT_RTNL();
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wpan_dev->frame_retries = max_frame_retries;
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return 0;
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}
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static int
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ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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bool mode)
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{
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ASSERT_RTNL();
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wpan_dev->lbt = mode;
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return 0;
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}
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static int
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ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, bool ackreq)
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{
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ASSERT_RTNL();
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wpan_dev->ackreq = ackreq;
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return 0;
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}
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#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
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static void
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ieee802154_get_llsec_table(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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struct ieee802154_llsec_table **table)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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*table = &sdata->sec.table;
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}
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static void
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ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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mutex_lock(&sdata->sec_mtx);
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}
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static void
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ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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mutex_unlock(&sdata->sec_mtx);
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}
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static int
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ieee802154_set_llsec_params(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_params *params,
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int changed)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_set_params(&sdata->sec, params, changed);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_get_llsec_params(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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struct ieee802154_llsec_params *params)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_get_params(&sdata->sec, params);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_key_id *id,
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const struct ieee802154_llsec_key *key)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_key_add(&sdata->sec, id, key);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_key_id *id)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_key_del(&sdata->sec, id);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_seclevel *sl)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_seclevel *sl)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_device *dev_desc)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_dev_add(&sdata->sec, dev_desc);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le64 extended_addr)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_dev_del(&sdata->sec, extended_addr);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le64 extended_addr,
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const struct ieee802154_llsec_device_key *key)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le64 extended_addr,
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const struct ieee802154_llsec_device_key *key)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
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const struct cfg802154_ops mac802154_config_ops = {
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.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
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.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
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.suspend = ieee802154_suspend,
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.resume = ieee802154_resume,
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.add_virtual_intf = ieee802154_add_iface,
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.del_virtual_intf = ieee802154_del_iface,
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.set_channel = ieee802154_set_channel,
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.set_cca_mode = ieee802154_set_cca_mode,
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.set_cca_ed_level = ieee802154_set_cca_ed_level,
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.set_tx_power = ieee802154_set_tx_power,
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.set_pan_id = ieee802154_set_pan_id,
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.set_short_addr = ieee802154_set_short_addr,
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.set_backoff_exponent = ieee802154_set_backoff_exponent,
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.set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
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.set_max_frame_retries = ieee802154_set_max_frame_retries,
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.set_lbt_mode = ieee802154_set_lbt_mode,
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.set_ackreq_default = ieee802154_set_ackreq_default,
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#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
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.get_llsec_table = ieee802154_get_llsec_table,
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.lock_llsec_table = ieee802154_lock_llsec_table,
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.unlock_llsec_table = ieee802154_unlock_llsec_table,
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/* TODO above */
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.set_llsec_params = ieee802154_set_llsec_params,
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.get_llsec_params = ieee802154_get_llsec_params,
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.add_llsec_key = ieee802154_add_llsec_key,
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.del_llsec_key = ieee802154_del_llsec_key,
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.add_seclevel = ieee802154_add_seclevel,
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.del_seclevel = ieee802154_del_seclevel,
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.add_device = ieee802154_add_device,
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.del_device = ieee802154_del_device,
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.add_devkey = ieee802154_add_devkey,
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.del_devkey = ieee802154_del_devkey,
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#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
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};
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