diff options
| author |   Mordechay Goodstein <mordechay.goodstein@intel.com> | 2021-04-11 12:46:26 +0300 |
|---|---|---|
| committer |   Luca Coelho <luciano.coelho@intel.com> | 2021-04-14 12:07:19 +0300 |
| commit | 2b6166664d2b5553953a8a5dee0843f3b1ca18e2 (patch) | |
| tree | 696389a4c38f09349387f689e8317abe9830fd5b /drivers/net/wireless/intel/iwlwifi/pcie/rx.c | |
| parent | iwlwifi: mvm: don't lock mutex in RCU critical section (diff) | |
| download | linux-dev-2b6166664d2b5553953a8a5dee0843f3b1ca18e2.tar.xz linux-dev-2b6166664d2b5553953a8a5dee0843f3b1ca18e2.zip | |
iwlwifi: pcie: merge napi_poll_msix functions
The only difference between iwl_pcie_napi_poll_msix_shared() and
iwl_pcie_napi_poll_msix() is when we have a shared queue and nothing
in the rx queue. This case doesn't affect CPU performance, so we can
merge the two functions.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210411124417.9d1b61ef53a5.I60b33d5379cf7c12f1de30fc3fd4cefc38220141@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/rx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 43 |
1 files changed, 10 insertions, 33 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 0cbc79949982..e4607f943ac3 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2003-2014, 2018-2020 Intel Corporation + * Copyright (C) 2003-2014, 2018-2021 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -1046,33 +1046,19 @@ static int iwl_pcie_napi_poll_msix(struct napi_struct *napi, int budget) trans = trans_pcie->trans; ret = iwl_pcie_rx_handle(trans, rxq->id, budget); + IWL_DEBUG_ISR(trans, "[%d] handled %d, budget %d\n", rxq->id, ret, + budget); if (ret < budget) { - spin_lock(&trans_pcie->irq_lock); - iwl_pcie_clear_irq(trans, rxq->id); - spin_unlock(&trans_pcie->irq_lock); - - napi_complete_done(&rxq->napi, ret); - } - - return ret; -} - -static int iwl_pcie_napi_poll_msix_shared(struct napi_struct *napi, int budget) -{ - struct iwl_rxq *rxq = container_of(napi, struct iwl_rxq, napi); - struct iwl_trans_pcie *trans_pcie; - struct iwl_trans *trans; - int ret; + int irq_line = rxq->id; - trans_pcie = container_of(napi->dev, struct iwl_trans_pcie, napi_dev); - trans = trans_pcie->trans; + /* FIRST_RSS is shared with line 0 */ + if (trans_pcie->shared_vec_mask & IWL_SHARED_IRQ_FIRST_RSS && + rxq->id == 1) + irq_line = 0; - ret = iwl_pcie_rx_handle(trans, rxq->id, budget); - - if (ret < budget) { spin_lock(&trans_pcie->irq_lock); - iwl_pcie_clear_irq(trans, 0); + iwl_pcie_clear_irq(trans, irq_line); spin_unlock(&trans_pcie->irq_lock); napi_complete_done(&rxq->napi, ret); @@ -1134,18 +1120,9 @@ static int _iwl_pcie_rx_init(struct iwl_trans *trans) if (!rxq->napi.poll) { int (*poll)(struct napi_struct *, int) = iwl_pcie_napi_poll; - if (trans_pcie->msix_enabled) { + if (trans_pcie->msix_enabled) poll = iwl_pcie_napi_poll_msix; - if (trans_pcie->shared_vec_mask & IWL_SHARED_IRQ_NON_RX && - i == 0) - poll = iwl_pcie_napi_poll_msix_shared; - - if (trans_pcie->shared_vec_mask & IWL_SHARED_IRQ_FIRST_RSS && - i == 1) - poll = iwl_pcie_napi_poll_msix_shared; - } - netif_napi_add(&trans_pcie->napi_dev, &rxq->napi, poll, NAPI_POLL_WEIGHT); napi_enable(&rxq->napi); |