From 49898852e6aa8a6de9a5bc0bab2cf305b3583bbf Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Tue, 2 Sep 2008 15:07:18 -0400 Subject: iwlwifi: do not use GFP_DMA in iwl_tx_queue_init GFP_DMA is not necessary for the iwlwifi hardware and it can cause allocation failures and/or invoke the OOM killer on lots of systems. For reference: https://bugzilla.redhat.com/show_bug.cgi?id=459709 Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index d82823b5c8a..ff879d46624 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -426,7 +426,7 @@ static int iwl_tx_queue_init(struct iwl_priv *priv, continue; } - txq->cmd[i] = kmalloc(len, GFP_KERNEL | GFP_DMA); + txq->cmd[i] = kmalloc(len, GFP_KERNEL); if (!txq->cmd[i]) return -ENOMEM; } -- cgit v1.2.3 From cf88c433bf64b6f7395a39f840bec88a8c58b58b Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Thu, 28 Aug 2008 17:25:04 +0800 Subject: iwlwifi: workaround interrupt handling no some platforms This patch adds workaround for an interrupt related hardware bug on some platforms. (Apparently these platforms boot-up w/ INTX_DISABLED set. -- JWL) Signed-off-by: Tomas Winkler Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 061ffba9c88..c0b73c4d6f4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2602,6 +2602,7 @@ static int iwl4965_mac_start(struct ieee80211_hw *hw) { struct iwl_priv *priv = hw->priv; int ret; + u16 pci_cmd; IWL_DEBUG_MAC80211("enter\n"); @@ -2612,6 +2613,13 @@ static int iwl4965_mac_start(struct ieee80211_hw *hw) pci_restore_state(priv->pci_dev); pci_enable_msi(priv->pci_dev); + /* enable interrupts if needed: hw bug w/a */ + pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); + if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { + pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; + pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); + } + ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED, DRV_NAME, priv); if (ret) { -- cgit v1.2.3 From 1d3e6c61342292140dfe1b921991ee793ec1e0ae Mon Sep 17 00:00:00 2001 From: Mohamed Abbas Date: Thu, 28 Aug 2008 17:25:05 +0800 Subject: iwlwifi: fix apm_stop (wrong bit polarity for FLAG_INIT_DONE) The patch fixes CSR_GP_CNTRL_REG_FLAG_INIT_DONE was set instead of cleared which disabled moving device to D0U state. Signed-off-by: Mohamed Abbas Signed-off-by: Tomas Winkler Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 4 ++-- drivers/net/wireless/iwlwifi/iwl-5000.c | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index e2581229d8b..23fed329896 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -474,8 +474,8 @@ static void iwl4965_apm_stop(struct iwl_priv *priv) iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); udelay(10); - - iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + /* clear "init complete" move adapter D0A* --> D0U state */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); spin_unlock_irqrestore(&priv->lock, flags); } diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index cbc01a00eaf..d95fb42b2bd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -145,7 +145,8 @@ static void iwl5000_apm_stop(struct iwl_priv *priv) udelay(10); - iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + /* clear "init complete" move adapter D0A* --> D0U state */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); spin_unlock_irqrestore(&priv->lock, flags); } -- cgit v1.2.3 From f0b9f5cb4adcec9424142592ca7bf024fe6c91a9 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Thu, 28 Aug 2008 17:25:10 +0800 Subject: iwlwifi: fix 64bit platform firmware loading This patch fixes loading firmware from memory above 32bit. Signed-off-by: Tomas Winkler Signed-off-by: Emmanuel Grumbach Signed-off-by: Zhu Yi Acked-by: Marcel Holtmann Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-5000.c | 11 ++++------- drivers/net/wireless/iwlwifi/iwl-fh.h | 1 + 2 files changed, 5 insertions(+), 7 deletions(-) (limited to 'drivers/net/wireless/iwlwifi') diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index d95fb42b2bd..b08036a9d89 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -578,14 +578,11 @@ static int iwl5000_load_section(struct iwl_priv *priv, FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL), phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK); - /* FIME: write the MSB of the phy_addr in CTRL1 - * iwl_write_direct32(priv, - IWL_FH_TFDIB_CTRL1_REG(IWL_FH_SRVC_CHNL), - ((phy_addr & MSB_MSK) - << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_count); - */ iwl_write_direct32(priv, - FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), byte_cnt); + FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), + (iwl_get_dma_hi_address(phy_addr) + << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt); + iwl_write_direct32(priv, FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL), 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM | diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h index 944642450d3..cd11c0ca299 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fh.h +++ b/drivers/net/wireless/iwlwifi/iwl-fh.h @@ -287,6 +287,7 @@ #define FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000) +#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT 28 /** * Transmit DMA Channel Control/Status Registers (TCSR) -- cgit v1.2.3