From fba58d37691063848beaf5dfa99b009c0148933b Mon Sep 17 00:00:00 2001 From: Matti Gottlieb Date: Fri, 4 Feb 2022 12:25:05 +0200 Subject: [PATCH] iwlwifi: pcie: Adapt rx queue write pointer for Bz family Adapt rx queue write pointer for Bz family. The register has moved to the same one as Tx. Signed-off-by: Matti Gottlieb Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220204122220.57bd62a4365c.I873aa9b3d13abf5633a4963c55c3a09a833254f0@changeid Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/iwl-csr.h | 3 +++ drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 9 ++++++--- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-csr.h b/drivers/net/wireless/intel/iwlwifi/iwl-csr.h index f90d466..c0a18e8 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-csr.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-csr.h @@ -533,6 +533,9 @@ enum { * 11-8: queue selector */ #define HBUS_TARG_WRPTR (HBUS_BASE+0x060) +/* This register is common for Tx and Rx, Rx queues start from 512 */ +#define HBUS_TARG_WRPTR_Q_SHIFT (16) +#define HBUS_TARG_WRPTR_RX_Q(q) (((q) + 512) << HBUS_TARG_WRPTR_Q_SHIFT) /********************************************************** * CSR values diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 331c1a0..71db571 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -190,11 +190,14 @@ static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans, } rxq->write_actual = round_down(rxq->write, 8); - if (trans->trans_cfg->mq_rx_supported) + if (!trans->trans_cfg->mq_rx_supported) + iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, rxq->write_actual); + else if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) + iwl_write32(trans, HBUS_TARG_WRPTR, rxq->write_actual | + HBUS_TARG_WRPTR_RX_Q(rxq->id)); + else iwl_write32(trans, RFH_Q_FRBDCB_WIDX_TRG(rxq->id), rxq->write_actual); - else - iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, rxq->write_actual); } static void iwl_pcie_rxq_check_wrptr(struct iwl_trans *trans) -- 2.7.4