- 28 3月, 2014 1 次提交
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由 Michal Kazior 提交于
Definitions by which copy engine structure are allocated do not change so it doesn't make much sense to re-create those structures each time device is booted (e.g. due to firmware recovery). This should decrease chance of memory allocation failures. While at it remove per_transfer_context pointer indirection. The array has been trailing the copy engine ringbuffer structure anyway. This also saves pointer size worth of bytes for each copy engine ringbuffer. Reported-By: NAvery Pennarun <apenwarr@gmail.com> Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 28 2月, 2014 2 次提交
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由 Michal Kazior 提交于
Going through full htc tx path for htt tx is a waste of resources. By skipping it it's possible to easily submit scatter-gather to the pci hif for reduced host cpu load and improved performance. The new approach uses dma pool to store the following metadata for each tx request: * msdu fragment list * htc header * htt tx command The htt tx command contains a msdu prefetch. Instead of copying it original mapped msdu address is used to submit a second scatter-gather item to hif to make a complete htt tx command. The htt tx command itself hands over dma mapped pointers to msdus and completion of the command itself doesn't mean the frame has been sent and can be unmapped/freed. This is why htc tx completion is skipped for htt tx as all tx related resources are freed upon htt tx completion indication event (which also implicitly means htt tx command itself was completed). Since now each htt tx request effectively consists of 2 copy engine items CE_HTT_H2T_MSG_SRC_NENTRIES is updated to allow maximum of TARGET_10X_NUM_MSDU_DESC msdus being queued. This keeps the tx path resource management simple. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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由 Michal Kazior 提交于
PCI is capable of handling scatter-gather lists. This can be used to avoid copying memory. Change the name of the callback while at to reflect its purpose. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 27 11月, 2013 1 次提交
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由 Michal Kazior 提交于
It's impossible to rely on disable_irq() and/or CE interrupt masking with legacy shared interrupts. Other devices sharing the same irq line may assert it while ath10k is doing something that requires no interrupts. Irq handlers are now registered after all preparations are complete so spurious/foreign interrupts won't do any harm. The handlers are unregistered when no interrupts are required (i.e. during driver teardown). This also removes the ability to receive FW early indication (since interrupts are not registered until early boot is complete). This is not mission critical (it's more of a hint that early boot failed due to unexpected FW crash) and will be re-added in a follow up patch. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 13 11月, 2013 2 次提交
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由 Michal Kazior 提交于
This patch moves irq registering after necessary structures have been allocated and initialized. This should prevent interrupts from causing tasklet access invalid memory pointers. Reported-By: NBen Greear <greearb@candelatech.com> Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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由 Michal Kazior 提交于
This shouldn't be silenced. This will be necessary for PCI init code reordering. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 07 10月, 2013 2 次提交
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由 Michal Kazior 提交于
The value provided by num_sends_allowed is now derived from CE source ringbuffer state. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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由 Michal Kazior 提交于
It is completely pointless to keep this function around. It doesn't do anything different than ce_send except it introduces more overhead. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 13 9月, 2013 1 次提交
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由 Kalle Valo 提交于
struct ce_sendlist is useless as we always add just one buffer onto it. And most importantly, it's ugly as it doesn't use skb properly. Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 08 9月, 2013 1 次提交
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由 Michal Kazior 提交于
The double while() could end up running forever. Inner while() would complete very fast. However the completion processing could take enough time for more completions to flow in. In that case the outer while() would not terminate and run again, and again. This could happen especially on a slow host system. This could lead to a system freeze during heavy traffic. Note: this doesn't solve all known starvation issues yet. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 01 9月, 2013 4 次提交
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由 Michal Kazior 提交于
The new naming makes more sense. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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由 Michal Kazior 提交于
The new naming makes more sense. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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由 Michal Kazior 提交于
Some parameters were unused and are not required. They have no representation in firmware. Clean them up. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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由 Michal Kazior 提交于
It was only written to and never read back. No use to keep it around. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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- 13 6月, 2013 1 次提交
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由 Kalle Valo 提交于
Here's a new mac80211 driver for Qualcomm Atheros 802.11ac QCA98xx devices. A major difference from ath9k is that there's now a firmware and that's why we had to implement a new driver. The wiki page for the driver is: http://wireless.kernel.org/en/users/Drivers/ath10k The driver has had many authors, they are listed here alphabetically: Bartosz Markowski <bartosz.markowski@tieto.com> Janusz Dziedzic <janusz.dziedzic@tieto.com> Kalle Valo <kvalo@qca.qualcomm.com> Marek Kwaczynski <marek.kwaczynski@tieto.com> Marek Puzyniak <marek.puzyniak@tieto.com> Michal Kazior <michal.kazior@tieto.com> Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
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