Wen Gong <quic_wgong@xxxxxxxxxxx> wrote: > Command "iw wls1 station dump" does not show each chain's rssi currently. > > If the rssi of each chain from mon status which parsed in function > ath11k_hal_rx_parse_mon_status_tlv() is invalid, then ath11k send > wmi cmd WMI_REQUEST_STATS_CMDID with flag WMI_REQUEST_RSSI_PER_CHAIN_STAT > to firmware, and parse the rssi of chain in wmi WMI_UPDATE_STATS_EVENTID, > then report them to mac80211. > > WMI_REQUEST_STATS_CMDID is only sent when CONFIG_ATH11K_DEBUGFS is set, > it is only called by ath11k_mac_op_sta_statistics(). It does not effect > performance and power consumption. Because after STATION connected to > AP, it is only called every 6 seconds by NetworkManager in below stack. > > [ 797.005587] CPU: 0 PID: 701 Comm: NetworkManager Tainted: G W OE 5.13.0-rc6-wt-ath+ #2 > [ 797.005596] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011 > [ 797.005600] RIP: 0010:ath11k_mac_op_sta_statistics+0x2f/0x1b0 [ath11k] > [ 797.005644] Code: 41 56 41 55 4c 8d aa 58 01 00 00 41 54 55 48 89 d5 53 48 8b 82 58 01 00 00 48 89 cb 4c 8b 70 20 49 8b 06 4c 8b a0 90 08 00 00 <0f> 0b 48 8b 82 b8 01 00 00 48 ba 00 00 00 00 01 00 00 00 48 89 81 > [ 797.005651] RSP: 0018:ffffb1fc80a4b890 EFLAGS: 00010282 > [ 797.005658] RAX: ffff8a5726200000 RBX: ffffb1fc80a4b958 RCX: ffffb1fc80a4b958 > [ 797.005664] RDX: ffff8a5726a609f0 RSI: ffff8a581247f598 RDI: ffff8a5702878800 > [ 797.005668] RBP: ffff8a5726a609f0 R08: 0000000000000000 R09: 0000000000000000 > [ 797.005672] R10: 0000000000000000 R11: 0000000000000007 R12: 02dd68024f75f480 > [ 797.005676] R13: ffff8a5726a60b48 R14: ffff8a5702879f40 R15: ffff8a5726a60000 > [ 797.005681] FS: 00007f632c52a380(0000) GS:ffff8a583a200000(0000) knlGS:0000000000000000 > [ 797.005687] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 797.005692] CR2: 00007fb025d69000 CR3: 00000001124f6005 CR4: 00000000000606f0 > [ 797.005698] Call Trace: > [ 797.005710] sta_set_sinfo+0xa7/0xb80 [mac80211] > [ 797.005820] ieee80211_get_station+0x50/0x70 [mac80211] > [ 797.005925] nl80211_get_station+0xd1/0x200 [cfg80211] > [ 797.006045] genl_family_rcv_msg_doit.isra.15+0x111/0x140 > [ 797.006059] genl_rcv_msg+0xe6/0x1e0 > [ 797.006065] ? nl80211_dump_station+0x220/0x220 [cfg80211] > [ 797.006223] ? nl80211_send_station.isra.72+0xf50/0xf50 [cfg80211] > [ 797.006348] ? genl_family_rcv_msg_doit.isra.15+0x140/0x140 > [ 797.006355] netlink_rcv_skb+0xb9/0xf0 > [ 797.006363] genl_rcv+0x24/0x40 > [ 797.006369] netlink_unicast+0x18e/0x290 > [ 797.006375] netlink_sendmsg+0x30f/0x450 > [ 797.006382] sock_sendmsg+0x5b/0x60 > [ 797.006393] ____sys_sendmsg+0x219/0x240 > [ 797.006403] ? copy_msghdr_from_user+0x5c/0x90 > [ 797.006413] ? ____sys_recvmsg+0xf5/0x190 > [ 797.006422] ___sys_sendmsg+0x88/0xd0 > [ 797.006432] ? copy_msghdr_from_user+0x5c/0x90 > [ 797.006443] ? ___sys_recvmsg+0x9e/0xd0 > [ 797.006454] ? __fget_files+0x58/0x90 > [ 797.006461] ? __fget_light+0x2d/0x70 > [ 797.006466] ? do_epoll_wait+0xce/0x720 > [ 797.006476] ? __sys_sendmsg+0x63/0xa0 > [ 797.006485] __sys_sendmsg+0x63/0xa0 > [ 797.006497] do_syscall_64+0x3c/0xb0 > [ 797.006509] entry_SYSCALL_64_after_hwframe+0x44/0xae > [ 797.006519] RIP: 0033:0x7f632d99912d > [ 797.006526] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 ca ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2f 44 89 c7 48 89 44 24 08 e8 fe ee ff ff 48 > [ 797.006533] RSP: 002b:00007ffd80808c00 EFLAGS: 00000293 ORIG_RAX: 000000000000002e > [ 797.006540] RAX: ffffffffffffffda RBX: 0000563dab99d840 RCX: 00007f632d99912d > [ 797.006545] RDX: 0000000000000000 RSI: 00007ffd80808c50 RDI: 000000000000000b > [ 797.006549] RBP: 00007ffd80808c50 R08: 0000000000000000 R09: 0000000000001000 > [ 797.006552] R10: 0000563dab96f010 R11: 0000000000000293 R12: 0000563dab99d840 > [ 797.006556] R13: 0000563dabbb28c0 R14: 00007f632dad4280 R15: 0000563dabab11c0 > [ 797.006563] ---[ end trace c9dcf08920c9945c ]--- > > Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01230-QCAHSTSWPLZ_V2_TO_X86-1 > Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-02892.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 > > Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx> > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. b488c766442f ath11k: report rssi of each chain to mac80211 for QCA6390/WCN6855 -- https://patchwork.kernel.org/project/linux-wireless/patch/20211215090944.19729-1-quic_wgong@xxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
