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') diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index d82823b5c8ab..ff879d46624a 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 v1.2.2 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') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 061ffba9c884..c0b73c4d6f44 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 v1.2.2 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') diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index e2581229d8b2..23fed3298962 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 cbc01a00eaf4..d95fb42b2bdf 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 v1.2.2 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') diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index d95fb42b2bdf..b08036a9d894 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 944642450d3d..cd11c0ca2991 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 v1.2.2 From 667d41008eb8a0e1d495d6c0a6143b43fe587c98 Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Sat, 23 Aug 2008 19:03:34 +0100 Subject: orinoco: Multicast to the specified addresses When multicasting the driver sets the number of group addresses using the count from the previous set multicast command. In general this means you have to set the multicast addresses twice to get the behaviour you want. If we were multicasting, and reduce the number of addresses we are multicasting to, then the driver would write uninitialised data from the stack into the group addresses to multicast to. Only write the multicast addresses we have specifically set. Signed-off-by: David Kilroy Signed-off-by: John W. Linville --- drivers/net/wireless/orinoco.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c index 1ebcafe7ca5f..36c004e15602 100644 --- a/drivers/net/wireless/orinoco.c +++ b/drivers/net/wireless/orinoco.c @@ -1970,6 +1970,9 @@ __orinoco_set_multicast_list(struct net_device *dev) priv->promiscuous = promisc; } + /* If we're not in promiscuous mode, then we need to set the + * group address if either we want to multicast, or if we were + * multicasting and want to stop */ if (! promisc && (mc_count || priv->mc_count) ) { struct dev_mc_list *p = dev->mc_list; struct hermes_multicast mclist; @@ -1989,9 +1992,10 @@ __orinoco_set_multicast_list(struct net_device *dev) printk(KERN_WARNING "%s: Multicast list is " "longer than mc_count\n", dev->name); - err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES, - HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN), - &mclist); + err = hermes_write_ltv(hw, USER_BAP, + HERMES_RID_CNFGROUPADDRESSES, + HERMES_BYTES_TO_RECLEN(mc_count * ETH_ALEN), + &mclist); if (err) printk(KERN_ERR "%s: Error %d setting multicast list.\n", dev->name, err); -- cgit v1.2.2 From 9a52028e534b0567913a4144060e774891c00a37 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 28 Aug 2008 01:05:08 +0300 Subject: wireless/libertas/if_cs.c: fix memory leaks The leak in if_cs_prog_helper() is obvious. It looks a bit as if not freeing "fw" in if_cs_prog_real() was done intentionally, but I'm not seeing why it shouldn't be freed. Reported-by: Adrian Bunk Signed-off-by: Adrian Bunk Acked-by: Holger Schurig Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_cs.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 04d7a251e3f0..8941919001bb 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -595,7 +595,7 @@ static int if_cs_prog_helper(struct if_cs_card *card) if (ret < 0) { lbs_pr_err("can't download helper at 0x%x, ret %d\n", sent, ret); - goto done; + goto err_release; } if (count == 0) @@ -604,9 +604,8 @@ static int if_cs_prog_helper(struct if_cs_card *card) sent += count; } +err_release: release_firmware(fw); - ret = 0; - done: lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); return ret; @@ -676,14 +675,8 @@ static int if_cs_prog_real(struct if_cs_card *card) } ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a); - if (ret < 0) { + if (ret < 0) lbs_pr_err("firmware download failed\n"); - goto err_release; - } - - ret = 0; - goto done; - err_release: release_firmware(fw); -- cgit v1.2.2 From 445df54fec7c1924f44018c4db2a9613b877f10e Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 1 Sep 2008 14:47:19 +0300 Subject: rt2x00: Compiler warning unmasked by fix of BUILD_BUG_ON A "Set" to a sign-bit in an "&" operation causes a compiler warning. Make calculations unsigned. [ The warning was masked by the old definition of BUILD_BUG_ON() ] Also remove __builtin_constant_p from FIELD_CHECK since BUILD_BUG_ON no longer permits non-const values. Signed-off-by: Boaz Harrosh CC: Ingo Molnar CC: Rusty Russell Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00reg.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/rt2x00/rt2x00reg.h b/drivers/net/wireless/rt2x00/rt2x00reg.h index 7e88ce5651b9..2ea7866abd5d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00reg.h +++ b/drivers/net/wireless/rt2x00/rt2x00reg.h @@ -136,7 +136,7 @@ struct rt2x00_field32 { */ #define is_power_of_two(x) ( !((x) & ((x)-1)) ) #define low_bit_mask(x) ( ((x)-1) & ~(x) ) -#define is_valid_mask(x) is_power_of_two(1 + (x) + low_bit_mask(x)) +#define is_valid_mask(x) is_power_of_two(1LU + (x) + low_bit_mask(x)) /* * Macro's to find first set bit in a variable. @@ -173,8 +173,7 @@ struct rt2x00_field32 { * does not exceed the given typelimit. */ #define FIELD_CHECK(__mask, __type) \ - BUILD_BUG_ON(!__builtin_constant_p(__mask) || \ - !(__mask) || \ + BUILD_BUG_ON(!(__mask) || \ !is_valid_mask(__mask) || \ (__mask) != (__type)(__mask)) \ -- cgit v1.2.2 From 1b96175b7e5801a908718d8b5270a4f7d94fed28 Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian Date: Mon, 1 Sep 2008 19:45:21 +0530 Subject: ath9k: Incorrect key used when group and pairwise ciphers are different. Updating sc_keytype multiple times when groupwise and pairwise ciphers are different results in incorrect pairwise key type assumed for TX control and normal ping fails. This works fine for cases where both groupwise and pairwise ciphers are same. Also use mac80211 provided enums for key length calculation. Signed-off-by: Senthil Balasubramanian Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/hw.c | 8 ++++---- drivers/net/wireless/ath9k/main.c | 6 ++++-- 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c index a17eb130f574..6dbfed0b4149 100644 --- a/drivers/net/wireless/ath9k/hw.c +++ b/drivers/net/wireless/ath9k/hw.c @@ -7285,15 +7285,15 @@ ath9k_hw_set_keycache_entry(struct ath_hal *ah, u16 entry, } break; case ATH9K_CIPHER_WEP: - if (k->kv_len < 40 / NBBY) { + if (k->kv_len < LEN_WEP40) { DPRINTF(ah->ah_sc, ATH_DBG_KEYCACHE, "%s: WEP key length %u too small\n", __func__, k->kv_len); return false; } - if (k->kv_len <= 40 / NBBY) + if (k->kv_len <= LEN_WEP40) keyType = AR_KEYTABLE_TYPE_40; - else if (k->kv_len <= 104 / NBBY) + else if (k->kv_len <= LEN_WEP104) keyType = AR_KEYTABLE_TYPE_104; else keyType = AR_KEYTABLE_TYPE_128; @@ -7313,7 +7313,7 @@ ath9k_hw_set_keycache_entry(struct ath_hal *ah, u16 entry, key2 = get_unaligned_le32(k->kv_val + 6) ^ xorMask; key3 = (get_unaligned_le16(k->kv_val + 10) ^ xorMask) & 0xffff; key4 = get_unaligned_le32(k->kv_val + 12) ^ xorMask; - if (k->kv_len <= 104 / NBBY) + if (k->kv_len <= LEN_WEP104) key4 &= 0xff; if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) { diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 2888778040e4..95b337149484 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -206,7 +206,8 @@ static int ath_key_config(struct ath_softc *sc, if (!ret) return -EIO; - sc->sc_keytype = hk.kv_type; + if (mac) + sc->sc_keytype = hk.kv_type; return 0; } @@ -756,7 +757,8 @@ static int ath9k_set_key(struct ieee80211_hw *hw, key->hw_key_idx = key->keyidx; /* push IV and Michael MIC generation to stack */ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + if (key->alg == ALG_TKIP) + key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; } break; case DISABLE_KEY: -- cgit v1.2.2 From 773b4e02be28220e9ead80a5fdb180031361439a Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian Date: Mon, 1 Sep 2008 19:58:20 +0530 Subject: ath9: Fix ath_rx_flush_tid() for IRQs disabled kernel warning message. This patch addresses an issue with the locking order. ath_rx_flush_tid() uses spin_lock/unlock_bh when IRQs are disabled in sta_notify by mac80211. As node clean up is still pending with ath9k and this problematic portion of the code is expected to change anyway, thinking of a proper fix may not be worthwhile. So having this interim fix helps the users to get rid of the kernel warning message. Pasted the kernel warning message for reference. kernel: ath0: No ProbeResp from current AP 00:1b:11:60:7a:3d - assume out of range kernel: ------------[ cut here ]------------ kernel: WARNING: at kernel/softirq.c:136 local_bh_enable+0x3c/0xab() kernel: Pid: 1029, comm: ath9k Not tainted 2.6.27-rc4-wt-w1fi-wl kernel: kernel: Call Trace: kernel: [] warn_on_slowpath+0x51/0x77 kernel: [] check_preempt_wakeup+0xf3/0x123 kernel: [] autoremove_wake_function+0x9/0x2e kernel: [] local_bh_enable+0x3c/0xab kernel: [] ath_rx_node_cleanup+0x38/0x6e [ath9k] kernel: [] ath_node_detach+0x3b/0xb6 [ath9k] kernel: [] ath9k_sta_notify+0x12b/0x165 [ath9k] kernel: [] queue_work+0x1d/0x49 kernel: [] add_todo+0x70/0x99 [mac80211] kernel: [] __sta_info_unlink+0x16b/0x19e [mac80211] kernel: [] sta_info_unlink+0x18/0x43 [mac80211] kernel: [] ieee80211_associated+0xaa/0x16d [mac80211] kernel: [] ieee80211_sta_work+0x4fb/0x6b4 [mac80211] kernel: [] thread_return+0x30/0xa9 kernel: [] ieee80211_sta_work+0x0/0x6b4 [mac80211] kernel: [] run_workqueue+0xb1/0x17a kernel: [] worker_thread+0xd0/0xdb kernel: [] autoremove_wake_function+0x0/0x2e kernel: [] worker_thread+0x0/0xdb kernel: [] kthread+0x47/0x75 kernel: [] schedule_tail+0x18/0x50 kernel: [] child_rip+0xa/0x11 kernel: [] kthread+0x0/0x75 kernel: [] child_rip+0x0/0x11 kernel: kernel: ---[ end trace e9bb5da661055827 ]--- Signed-off-by: Senthil Balasubramanian Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/recv.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c index 2fe806175c01..20ddb7acdb94 100644 --- a/drivers/net/wireless/ath9k/recv.c +++ b/drivers/net/wireless/ath9k/recv.c @@ -360,8 +360,9 @@ static void ath_rx_flush_tid(struct ath_softc *sc, struct ath_arx_tid *rxtid, int drop) { struct ath_rxbuf *rxbuf; + unsigned long flag; - spin_lock_bh(&rxtid->tidlock); + spin_lock_irqsave(&rxtid->tidlock, flag); while (rxtid->baw_head != rxtid->baw_tail) { rxbuf = rxtid->rxbuf + rxtid->baw_head; if (!rxbuf->rx_wbuf) { @@ -382,7 +383,7 @@ static void ath_rx_flush_tid(struct ath_softc *sc, INCR(rxtid->baw_head, ATH_TID_MAX_BUFS); INCR(rxtid->seq_next, IEEE80211_SEQ_MAX); } - spin_unlock_bh(&rxtid->tidlock); + spin_unlock_irqrestore(&rxtid->tidlock, flag); } static struct sk_buff *ath_rxbuf_alloc(struct ath_softc *sc, -- cgit v1.2.2