On Thu, 2020-10-01 at 09:25 -0400, Jason Andryuk wrote: > On Wed, Aug 19, 2020 at 9:28 PM Connor Davis <connojd@xxxxxxxxxxxxxx> wrote: > > If iwl_configure_rxq is called when mvm->trans->num_rx_queues == 1, > > an RFH_QUEUE_CONFIG_CMD is sent with cmd->num_queues == 0. This results > > in an error when the interface is brought up: > > > > [ 10.073760] iwlwifi 0000:3b:00.0: Applying debug destination EXTERNAL_DRAM > > [ 10.239723] iwlwifi 0000:3b:00.0: FW already configured (0) - re-configuring > > [ 10.441592] iwlwifi 0000:3b:00.0: Microcode SW error detected. Restarting 0x2000000. > > [ 10.442812] iwlwifi 0000:3b:00.0: Start IWL Error Log Dump: > > [ 10.442815] iwlwifi 0000:3b:00.0: Status: 0x00000040, count: 6 > > [ 10.442817] iwlwifi 0000:3b:00.0: Loaded firmware version: 48.4fa0041f.0 cc-a0-48.ucode > > [ 10.442818] iwlwifi 0000:3b:00.0: 0x00000071 | NMI_INTERRUPT_UMAC_FATAL > > [ 10.442820] iwlwifi 0000:3b:00.0: 0x000022F0 | trm_hw_status0 > > [ 10.442821] iwlwifi 0000:3b:00.0: 0x00000000 | trm_hw_status1 > > [ 10.442822] iwlwifi 0000:3b:00.0: 0x004F8E3C | branchlink2 > > [ 10.442823] iwlwifi 0000:3b:00.0: 0x004E4FF4 | interruptlink1 > > [ 10.442825] iwlwifi 0000:3b:00.0: 0x004E4FF4 | interruptlink2 > > [ 10.442826] iwlwifi 0000:3b:00.0: 0x00016FF4 | data1 > > [ 10.442827] iwlwifi 0000:3b:00.0: 0x00001000 | data2 > > [ 10.442828] iwlwifi 0000:3b:00.0: 0xF0000008 | data3 > > [ 10.442829] iwlwifi 0000:3b:00.0: 0x00000000 | beacon time > > [ 10.442831] iwlwifi 0000:3b:00.0: 0x00053105 | tsf low > > [ 10.442832] iwlwifi 0000:3b:00.0: 0x00000000 | tsf hi > > [ 10.442833] iwlwifi 0000:3b:00.0: 0x00000000 | time gp1 > > [ 10.442834] iwlwifi 0000:3b:00.0: 0x00059A51 | time gp2 > > [ 10.442835] iwlwifi 0000:3b:00.0: 0x00000001 | uCode revision type > > [ 10.442836] iwlwifi 0000:3b:00.0: 0x00000030 | uCode version major > > [ 10.442838] iwlwifi 0000:3b:00.0: 0x4FA0041F | uCode version minor > > [ 10.442839] iwlwifi 0000:3b:00.0: 0x00000340 | hw version > > [ 10.442840] iwlwifi 0000:3b:00.0: 0x18C89000 | board version > > [ 10.442841] iwlwifi 0000:3b:00.0: 0x801FF500 | hcmd > > [ 10.442842] iwlwifi 0000:3b:00.0: 0x00020000 | isr0 > > [ 10.442843] iwlwifi 0000:3b:00.0: 0x00000000 | isr1 > > [ 10.442845] iwlwifi 0000:3b:00.0: 0x08F00002 | isr2 > > [ 10.442846] iwlwifi 0000:3b:00.0: 0x00C00008 | isr3 > > [ 10.442847] iwlwifi 0000:3b:00.0: 0x00000000 | isr4 > > [ 10.442848] iwlwifi 0000:3b:00.0: 0x000301D1 | last cmd Id > > [ 10.442849] iwlwifi 0000:3b:00.0: 0x00016FF4 | wait_event > > [ 10.442850] iwlwifi 0000:3b:00.0: 0x00000000 | l2p_control > > [ 10.442851] iwlwifi 0000:3b:00.0: 0x00000000 | l2p_duration > > [ 10.442852] iwlwifi 0000:3b:00.0: 0x00000000 | l2p_mhvalid > > [ 10.442853] iwlwifi 0000:3b:00.0: 0x00000000 | l2p_addr_match > > [ 10.442855] iwlwifi 0000:3b:00.0: 0x00000009 | lmpm_pmg_sel > > [ 10.442856] iwlwifi 0000:3b:00.0: 0x00000000 | timestamp > > [ 10.442857] iwlwifi 0000:3b:00.0: 0x00000828 | flow_handler > > [ 10.443452] iwlwifi 0000:3b:00.0: Start IWL Error Log Dump: > > [ 10.443453] iwlwifi 0000:3b:00.0: Status: 0x00000040, count: 7 > > [ 10.443454] iwlwifi 0000:3b:00.0: 0x20000034 | NMI_INTERRUPT_WDG > > [ 10.443456] iwlwifi 0000:3b:00.0: 0x00000000 | umac branchlink1 > > [ 10.443456] iwlwifi 0000:3b:00.0: 0xC008CC3C | umac branchlink2 > > [ 10.443458] iwlwifi 0000:3b:00.0: 0x8048E6D8 | umac interruptlink1 > > [ 10.443459] iwlwifi 0000:3b:00.0: 0x8048E6D8 | umac interruptlink2 > > [ 10.443460] iwlwifi 0000:3b:00.0: 0x00000004 | umac data1 > > [ 10.443461] iwlwifi 0000:3b:00.0: 0x8048E6D8 | umac data2 > > [ 10.443462] iwlwifi 0000:3b:00.0: 0x00000000 | umac data3 > > [ 10.443463] iwlwifi 0000:3b:00.0: 0x00000030 | umac major > > [ 10.443464] iwlwifi 0000:3b:00.0: 0x4FA0041F | umac minor > > [ 10.443465] iwlwifi 0000:3b:00.0: 0x00059A43 | frame pointer > > [ 10.443466] iwlwifi 0000:3b:00.0: 0xC0886A48 | stack pointer > > [ 10.443468] iwlwifi 0000:3b:00.0: 0x000B050D | last host cmd > > [ 10.443469] iwlwifi 0000:3b:00.0: 0x00000000 | isr status reg > > [ 10.443553] iwlwifi 0000:3b:00.0: Fseq Registers: > > [ 10.443605] iwlwifi 0000:3b:00.0: 0xE0000101 | FSEQ_ERROR_CODE > > [ 10.443657] iwlwifi 0000:3b:00.0: 0x00290011 | FSEQ_TOP_INIT_VERSION > > [ 10.443709] iwlwifi 0000:3b:00.0: 0x80050008 | FSEQ_CNVIO_INIT_VERSION > > [ 10.443775] iwlwifi 0000:3b:00.0: 0x0000A503 | FSEQ_OTP_VERSION > > [ 10.443912] iwlwifi 0000:3b:00.0: 0x80000003 | FSEQ_TOP_CONTENT_VERSION > > [ 10.443958] iwlwifi 0000:3b:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN > > [ 10.444011] iwlwifi 0000:3b:00.0: 0x00100530 | FSEQ_CNVI_ID > > [ 10.444062] iwlwifi 0000:3b:00.0: 0x00000532 | FSEQ_CNVR_ID > > [ 10.444113] iwlwifi 0000:3b:00.0: 0x00100530 | CNVI_AUX_MISC_CHIP > > [ 10.444166] iwlwifi 0000:3b:00.0: 0x00000532 | CNVR_AUX_MISC_CHIP > > [ 10.444220] iwlwifi 0000:3b:00.0: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM > > [ 10.444275] iwlwifi 0000:3b:00.0: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR > > [ 10.445696] iwlwifi 0000:3b:00.0: Collecting data: trigger 2 fired. > > [ 10.445710] iwlwifi 0000:3b:00.0: FW error in SYNC CMD RFH_QUEUE_CONFIG_CMD > > [ 10.445873] iwlwifi 0000:3b:00.0: Failed to configure RX queues: -5 > > > > that has been seen on several AX200/9462 devices running in a Xen HVM domain > > with PCI passthrough [0][1]. It can also be seen natively with a Killer AX1650x > > by coaxing the value of num_rx_queues to 1 in iwl_pcie_set_interrupt_capa. > > > > Fix this by returning early from iwl_configure_rxq whenever num_rx_queues is 1. > > > > [0] https://github.com/QubesOS/qubes-issues/issues/5616 > > [1] https://lore.kernel.org/linux-wireless/3cab5072-17a2-4d9a-2077-93788971c6c4@xxxxxxxxxxxxxxxxxxxxxx/T/ > > > > Signed-off-by: Connor Davis <connojd@xxxxxxxxxxxxxx> > > Tested-by: Jason Andryuk <jandryuk@xxxxxxxxx> > > This should be CC Stable as well. > > Thanks for fixing, Connor. Thanks for the patch! Sorry for the delay in replying. We have a similar patch in our internal tree that is queued for upstreaming. It's probably too late to have it in v5.9, but we will apply it as soon as possible. -- Cheers, Luca.
