kernel/linux.git/drivers/net/wireless/intel, branch v4.19.39

iwlwifi: mvm: fix RFH config command with >=10 CPUs

2019-04-05T20:33:11+00:00

[ Upstream commit dbf592f3d14fb7d532cb7c820b1065cf33e02aaa ] If we have >=10 (logical) CPUs, our command size exceeds the internal buffer size and the command fails; fix that by using IWL_HCMD_DFL_NOCOPY for the command that's allocated anyway. While at it, also fix the leak of cmd, and use struct_size() to calculate its size. Signed-off-by: Johannes Berg Fixes: 8edbfaa19835 ("iwlwifi: mvm: configure multi RX queue") Signed-off-by: Luca Coelho Signed-off-by: Sasha Levin

iwlwifi: pcie: fix emergency path

2019-04-05T20:33:07+00:00

[ Upstream commit c6ac9f9fb98851f47b978a9476594fc3c477a34d ] Allocator swaps the pending requests with 0 when it starts working. This means that relying on it n RX path to decide if to move to emergency is not always a good idea, since it may be zero, but there are still a lot of unallocated RBs in the system. Change allocator to decrement the pending requests on real time. It is more expensive since it accesses the atomic variable more times, but it gives the RX path a better idea of the system's status. Reported-by: Ilan Peer Signed-off-by: Sara Sharon Fixes: 868a1e863f95 ("iwlwifi: pcie: avoid empty free RB queue") Signed-off-by: Luca Coelho Signed-off-by: Sasha Levin

iwlwifi: mvm: fix setting HE ppe FW config

2019-02-12T18:47:14+00:00

[ Upstream commit 189b8d441b0f7825f0b4278851c52afaa0515ed2 ] The FW expects to get the ppe value for each NSS-BW pair in the same format as in the he phy capabilities IE, which means that a value of 0 implies ppe should be used for BPSK (mcs 0). If there are no PPE thresholds in the IE, or if for some NSS-RU pair there's no threshold set for it (this could happen because it's a variable-sized field), it means no PPE should not be used for that pair, so the value sent to FW should be 7 which corresponds to "none". Fixes: 514c30696fbc ("iwlwifi: add support for IEEE802.11ax") Signed-off-by: Naftali Goldstein Signed-off-by: Luca Coelho Signed-off-by: Kalle Valo Signed-off-by: Sasha Levin

iwlwifi: fw: do not set sgi bits for HE connection

2019-02-12T18:46:59+00:00

[ Upstream commit 5c2dbebb446539eb9640bf59a02756d6e7f1fc53 ] If the association supports HE, HT/VHT rates will never be used for Tx and therefore there's no need to set the sgi-per-channel-width-support bits, so don't set them in this case. Fixes: 110b32f065f3 ("iwlwifi: mvm: rs: add basic implementation of the new RS API handlers") Signed-off-by: Naftali Goldstein Signed-off-by: Luca Coelho Signed-off-by: Sasha Levin

iwlwifi: mvm: Send LQ command as async when necessary

2019-01-26T08:32:44+00:00

commit 3baf7528d6f832b28622d1ddadd2e47f6c2b5e08 upstream. The parameter that indicated whether the LQ command should be sent as sync or async was removed, causing the LQ command to be sent as sync from interrupt context (e.g. from the RX path). This resulted in a kernel warning: "scheduling while atomic" and failing to send the LQ command, which ultimately leads to a queue hang. Fix it by adding back the required parameter to send the command as sync only when it is allowed. Fixes: d94c5a820d10 ("iwlwifi: mvm: open BA session only when sta is authorized") Signed-off-by: Avraham Stern Signed-off-by: Luca Coelho Signed-off-by: Emmanuel Grumbach Signed-off-by: Greg Kroah-Hartman

iwlwifi: add new cards for 9560, 9462, 9461 and killer series

2018-12-29T12:37:58+00:00

commit f108703cb5f199d0fc98517ac29a997c4c646c94 upstream. add few PCI ID'S for 9560, 9462, 9461 and killer series. Cc: stable@vger.kernel.org Signed-off-by: Ihab Zhaika Signed-off-by: Luca Coelho Signed-off-by: Greg Kroah-Hartman

iwlwifi: mvm: don't send GEO_TX_POWER_LIMIT to old firmwares

2018-12-29T12:37:58+00:00

commit eca1e56ceedd9cc185eb18baf307d3ff2e4af376 upstream. Old firmware versions don't support this command. Sending it to any firmware before -41.ucode will crash the firmware. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=201975 Fixes: 66e839030fd6 ("iwlwifi: fix wrong WGDS_WIFI_DATA_SIZE") CC: #4.19+ Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman

iwlwifi: mvm: don't use SAR Geo if basic SAR is not used

2018-12-01T08:37:26+00:00

commit 5d041c46ccb9b48acc110e214beff5e2789311df upstream. We can't use SAR Geo if basic SAR is not enabled, since the SAR Geo tables define offsets in relation to the basic SAR table in use. To fix this, make iwl_mvm_sar_init() return one in case WRDS is not available, so we can skip reading WGDS entirely. Fixes: a6bff3cb19b7 ("iwlwifi: mvm: add GEO_TX_POWER_LIMIT cmd for geographic tx power table") Cc: stable@vger.kernel.org # 4.12+ Signed-off-by: Luca Coelho Signed-off-by: Greg Kroah-Hartman

iwlwifi: mvm: fix regulatory domain update when the firmware starts

2018-12-01T08:37:26+00:00

commit 82715ac71e6b94a2c2136e31f3a8e6748e33aa8c upstream. When the firmware starts, it doesn't have any regulatory information, hence it uses the world wide limitations. The driver can feed the firmware with previous knowledge that was kept in the driver, but the firmware may still not update its internal tables. This happens when we start a BSS interface, and then the firmware can change the regulatory tables based on our location and it'll use more lenient, location specific rules. Then, if the firmware is shut down (when the interface is brought down), and then an AP interface is created, the firmware will forget the country specific rules. The host will think that we are in a certain country that may allow channels and will try to teach the firmware about our location, but the firmware may still not allow to drop the world wide limitations and apply country specific rules because it was just re-started. In this case, the firmware will reply with MCC_RESP_ILLEGAL to the MCC_UPDATE_CMD. In that case, iwlwifi needs to let the upper layers (cfg80211 / hostapd) know that the channel list they know about has been updated. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=201105 Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Greg Kroah-Hartman

iwlwifi: mvm: support sta_statistics() even on older firmware

2018-12-01T08:37:26+00:00

commit ec484d03ef0df8d34086b95710e355a259cbe1f2 upstream. The oldest firmware supported by iwlmvm do support getting the average beacon RSSI. Enable the sta_statistics() call from mac80211 even on older firmware versions. Fixes: 33cef9256342 ("iwlwifi: mvm: support beacon statistics for BSS client") Cc: stable@vger.kernel.org # 4.2+ Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Greg Kroah-Hartman