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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2013-12-09 09:47:46 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2013-12-17 22:32:58 +0200 |
| commit | eef31718ebfa6b56f9d32ff25110ede982abecdc (patch) | |
| tree | accbbfc7e84a291f7724ecb40ea09b191bd4a32d | |
| parent | cf4ef65446443eb485afe9419ea82b2efbe582a7 (diff) | |
| download | linux-eef31718ebfa6b56f9d32ff25110ede982abecdc.tar.gz linux-eef31718ebfa6b56f9d32ff25110ede982abecdc.tar.bz2 linux-eef31718ebfa6b56f9d32ff25110ede982abecdc.zip | |
iwlwifi: pcie: clean up ICT allocation code
Since iwl_trans_pcie_alloc_ict is called in the PCIe
allocation code, we always set CSR_INT_BIT_RX_PERIODIC.
Move that bit to the default list of interrupts we enable
and simplify the code.
Also use dma_zalloc_ and avoid to memset the memory
afterwards.
trans_pcie->ict_index is 0 since trans_pcie has just been
kzalloced, remove the redundant assignment.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-csr.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/rx.c | 15 |
2 files changed, 6 insertions, 12 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h index da4eca8b3007..bbab26e937c6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-csr.h +++ b/drivers/net/wireless/iwlwifi/iwl-csr.h @@ -198,7 +198,8 @@ CSR_INT_BIT_RF_KILL | \ CSR_INT_BIT_SW_RX | \ CSR_INT_BIT_WAKEUP | \ - CSR_INT_BIT_ALIVE) + CSR_INT_BIT_ALIVE | \ + CSR_INT_BIT_RX_PERIODIC) /* interrupt flags in FH (flow handler) (PCI busmaster DMA) */ #define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */ diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index 7aeec5ccefa5..b3e6564af537 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -1048,7 +1048,7 @@ int iwl_pcie_alloc_ict(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); trans_pcie->ict_tbl = - dma_alloc_coherent(trans->dev, ICT_SIZE, + dma_zalloc_coherent(trans->dev, ICT_SIZE, &trans_pcie->ict_tbl_dma, GFP_KERNEL); if (!trans_pcie->ict_tbl) @@ -1060,17 +1060,10 @@ int iwl_pcie_alloc_ict(struct iwl_trans *trans) return -EINVAL; } - IWL_DEBUG_ISR(trans, "ict dma addr %Lx\n", - (unsigned long long)trans_pcie->ict_tbl_dma); + IWL_DEBUG_ISR(trans, "ict dma addr %Lx ict vir addr %p\n", + (unsigned long long)trans_pcie->ict_tbl_dma, + trans_pcie->ict_tbl); - IWL_DEBUG_ISR(trans, "ict vir addr %p\n", trans_pcie->ict_tbl); - - /* reset table and index to all 0 */ - memset(trans_pcie->ict_tbl, 0, ICT_SIZE); - trans_pcie->ict_index = 0; - - /* add periodic RX interrupt */ - trans_pcie->inta_mask |= CSR_INT_BIT_RX_PERIODIC; return 0; } |