- 13 Jan, 2014 11 commits
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Johannes Berg authored
It's a bit strange to treat an array as a pointer, so use proper array indexing instead. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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Emmanuel Grumbach authored
If the length isn't set it means we want all the SRAM. Also - this is perfectly valid to partially dump starting at offset 0. Signed-off-by: -
Eyal Shapira authored
Discovered by klocwork Array 'iwl_rate_mcs' of size 15 may use index value(s) -1 * rs.c:2562: index = iwl_hwrate_to_plcp_idx(rate) * rs.c:2562: Result of function call 'iwl_hwrate_to_plcp_idx(rate)' is '[-1,14]' * rs.c:2565: Array 'iwl_rate_mcs' size is 15. * rs.c:2565: Possible attempt to access element -1 of array 'iwl_rate_mcs'. While at it stop using index = -1 and always use IWL_RATE_INVALID Signed-off-by:Eyal Shapira <eyalx.shapira@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
Some NIC comes with more than the 4 NVM (non volative memory) sections described in the nvm_to_read array. These NICs usually get their NVM from an external file fetched from userland during init. We already parsed the file, but sent to the NIC only 4 NVM sections whereas there could be more sections in the file. Fix this. Signed-off-by: -
Eliad Peller authored
Since seq_number is incremented right after using it, so printed seq_ctrl was actually the next one to be used. Fix it by incrementing the seq_number only later, before saving it. Additionally, use the IEEE80211_SEQ_TO_SN macro in order to print the actual sequence number. Signed-off-by:
Eliad Peller <eliadx.peller@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
Enabling the oscillator consumes slightly more power (100uA) but allows to make sure that we exit from L1 on time. Not doing so might lead to a PCIe specification violation since we might wake up from L1 at the wrong time. This issue has been identified on 3160 and 7260 only. On older NICs L1 off is not enabled, on newer NICs (7265), the issue is fixed. When the bug occurs the user sees that the NIC has disappeared from the PCI bridge, any access to the device returns 0xff. This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=64541 and has been extensively discussed here: http://markmail.org/thread/mfmpzqt3r333n4bo Cc: stable@vger.kernel.org [3.10+] Fixes: 99cd4714 ("iwlwifi: add 7000 series device configuration") Reported-and-tested-by:
wzyboy <wzyboy@wzyboy.org> Reviewed-by:
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Emmanuel Grumbach authored
When we disassociate in managed mode, we flush the queues after mac80211 has already removed the station. During that time, the pointer to ieee80211_sta to the fw_id_to_mac_id map is -EINVAL. In that case we should not set the station as being drained when the last Tx of this station has exited the shared Tx queue since we are flushing all the queues anyway. The draining logic is meant to be used in GO / AP mode only. In GO / AP mode, we set -EBUSY in the fw_id_to_mac_id map. This is why testing the ieee80211_sta pointer in the fw_id_to_mac_id map with IS_ERR isn't enough to set the station as draining, we need to check that it is -EBUSY. The only impact of the bug was a print: Drained sta 1, but it is internal? Signed-off-by:
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Eyal Shapira authored
If we can't switch to a column because no rates are supported in that column this led to a state where the search cycle got stuck and never ended. This in turn also led to aggregation not being turned on. Fix this by marking a column as visited if we can't switch to it. Reported-and-tested-by:
Karl Beldan <karl.beldan@gmail.com> Signed-off-by:
Eyal Shapira <eyal@wizery.com> Signed-off-by:
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Eliad Peller authored
Cleanup of iwl_mvm_leds was missing in case of error, resulting in the following warning: WARNING: at lib/kobject.c:196 kobject_add_internal+0x1f4/0x210() kobject_add_internal failed for phy0-led with -EEXIST, don't try to register things with the same name in the same directory. which prevents further reloads of the driver. Cc: stable@vger.kernel.org [3.10+] Signed-off-by:
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Ilan Peer authored
The power settings need to be updated after a binding flow is done and before quota calculations. This was missing in the start_ap_ibss() flow. Fix it. Signed-off-by:
Ilan Peer <ilan.peer@intel.com> Signed-off-by:
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Ilan Peer authored
The state variable was not set to false in case of a failure to complete the start_ap_ibss() flow. Signed-off-by:
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- 31 Dec, 2013 17 commits
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Fengguang Wu authored
drivers/net/wireless/iwlwifi/mvm/led.c:106:2-3: Unneeded semicolon Removes unneeded semicolon. Generated by: coccinelle/misc/semicolon.cocci CC: Johannes Berg <johannes.berg@intel.com> Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
Happy new year! Signed-off-by: -
Eyal Shapira authored
Found by klocwork analysis. mvm could be NULL which may cause a NULL dereference in a theoretical call flow rs_fill_lq_cmd(mvm = NULL, ...) rs_build_rates_table rs_fill_rates_for_column ucode_rate_from_rs_rate IWL_ERR(mvm,...) No real reason for passing NULL to rs_fill_lq_cmd so fix that. Reported-by:
Eytan Lifshitz <eytan.lifshitz@intel.com> Signed-off-by:
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Ilan Peer authored
Currently, the MAC context tsf_id assignment and the master/slave relations are determined only when a new vif is added, as part of the MAC context resource allocation. However, at this stage, the beacon interval is not known, and thus could not be taken into account in the master-slave algorithm. To fix this, recalculate the MAC context tsf_id assignment, just before the MAC context is activated, i.e., just before a station VMAC is configured to associated and before an AP VMAC is started. Signed-off-by:
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Ilan Peer authored
Change the parameters for calculating an AP TBTT to 64/36 instead of 80/20, to increase the interval between a station vif and an AP vif TBTT events. Signed-off-by:
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Eran Harary authored
The access to the CSR_RESET reg should be done as a complete DWORD and not by setting a bit. This is the right way to reset the device. Signed-off-by:
Eran Harary <eran.harary@intel.com> Signed-off-by:
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Ilan Peer authored
Instead of always calling ieee80211_beacon_loss() on every missed beacons notification, call this function only if the number of consecutive missed beacons from last rx is higher than a predefined threshold. Signed-off-by:
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Arik Nemtsov authored
If the channel min-width changes, we can update the PHY ctx, even if it has multiple references. Signed-off-by:
Arik Nemtsov <arik@wizery.com> Reviewed-by:
Eliad Peller <eliad@wizery.com> Signed-off-by:
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Emmanuel Grumbach authored
This allows to format it at will using external tools. Since different teams want it in different formats, dump the raw data and everyone can play with the data the way they want. While at it - make this code slightly more robust by making the required verification on the offsets / length in the write handler. Signed-off-by: -
Emmanuel Grumbach authored
This channel inhibition for channel 14 was wrong. Fix it. Signed-off-by: -
Emmanuel Grumbach authored
Don't check if mvm->fw->cs is NULL since it can't be. cs is an array member of iwl_fw, it can't be NULL. Use memset(ptr, 0, sizeof(*ptr)); instead of memset(ptr, 0, sizeof(struct ptr_type)); Signed-off-by: -
Emmanuel Grumbach authored
The firmware needs to be stopped quickly (100ms) after the RFKILL interrupt fired. Failing to do so would allow the firmware to access the radio registers which would lead to a hardware error. Before this change, we would kill the firmware only when mac80211 stops the device which can take a fair amount of time. Take a shortcut by stopping the device right away in the interrupt. This is not relevant if the current firmware is INIT firmware since that firmware can run while in RFKILL. Signed-off-by: -
Emmanuel Grumbach authored
Calling stop_device when start_fw wasn't called would issue: Stopping tx queues that aren't allocated... Also allow the op_mode to call stop_device and then to disable the Tx queues - in that case just silently ignore the disabling on the Tx queues, since the PRPH registers aren't reachable any more. Signed-off-by: -
Emmanuel Grumbach authored
This is useless and introduces a dependency between rfkill and stop_device - the op_mode can't call stop_device from the rfkill notification since it would lead to an endless recursion. Next patches will need to do so. Signed-off-by: -
Emmanuel Grumbach authored
Under very specific circumstances, the firmware might ignore a host command. This was debugged and we ended up seeing that the power management hardware was faulty. In order to workaround this issue, we keep the NIC awake as long as we have host commands in flight. This will avoid to put the hardware into buggy condition. Signed-off-by: -
Eytan Lifshitz authored
In case of invalid section_id, the function returns after it aleready allocated memory. Fixed by change the order of actions. Signed-off-by:
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Emmanuel Grumbach authored
The AC / fifo mapping was wrong - BE packets landed in VO FIFO. The iwl_mvm_tx_fifo enumeration isn't in the same order as ieee80211_ac_numbers enumeration. Since the firmware relies on fifo / ac mapping - this led to wrong behavior. E.g. the firmware sends beacon with the same QoS parameters as VO, and it actually took the parameters of BK. There are probably more severe issues. Reviewed-by:
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- 21 Dec, 2013 5 commits
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Emmanuel Grumbach authored
This lock was never acquired in the primary interrupt handler, but since it was acquired along with irq_lock which had to disable interrupts, rxq->lock had to disable interrupts too. Now that trans_pcie->irq_lock isn't acquired in the primary interrupt handler, rxq->lock can let interrupt enabled. Reviewed-by:
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Emmanuel Grumbach authored
Since we don't take this lock in the primary interrupt handler, there is no pointin disabling the interrupt in the critical section protected by trans_pcie->irq_lock. Reviewed-by:
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Emmanuel Grumbach authored
Handling interrupt with no cause and printing logs doesn't need to be ICT / non-ICT specific move this to the common code. Reviewed-by:
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Emmanuel Grumbach authored
This was useful when the handling was not in the same context as the interrupt cause retrieval: we could have several hard interrupts until the handler gets called. Since we retrieve the interrupt cause in the handler itself, there is no need to OR the interrupt causes. Reviewed-by:
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Emmanuel Grumbach authored
These functions are meant to return an interrupt cause and not an irqreturn_t. We still return IRQ_HANDLED if we had an error and IRQ_NONE if our device hasn't fired any interrupt. Reviewed-by:
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- 17 Dec, 2013 7 commits
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Emmanuel Grumbach authored
Instead of having: iwl_pcie_irq_handler iwl_pcie_isr_ict iwl_pcie_isr_non_ict we now have: iwl_pcie_irq_handler: if (use_ict)) iwl_pcie_int_cause_ict; else iwl_pcie_int_cause_non_ict; This is much clearer. Signed-off-by: -
Emmanuel Grumbach authored
We now disable the interrupts in the hardware from the upper half and all the rest (including reading the interrupt cause) is done in the handler. Reviewed-by:
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Emmanuel Grumbach authored
The purpose of this is to be able to call these functions from the interrupt handler and not from the primary interrupt handler. Reviewed-by:
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Emmanuel Grumbach authored
Separate the code that simply disables interrupt in the hardware and the code that checks what interrupt fired. This will be useful to move the second part in the threaded handler which will be done in a future patch. Reviewed-by:
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Emmanuel Grumbach authored
Track the interrupt mask in software, making it exactly what is configured in the interrupt mask register in the hardware. This allows not to access the register from the interrupt handler. This was the case for ICT interrupt already, but not for non-ICT interrupt. Reviewed-by:
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Emmanuel Grumbach authored
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:
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Johannes Berg authored
Signed-off-by:
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