Commit Graph

6 Commits

Author SHA1 Message Date
Sergey Matyukevich
c35c0d54a7 qtnfmac: modify full Tx queue recovery
Current recovery approach is to wake s/w Tx queues for skb->dev netdevice.
However this approach doesn't cover the case when h/w queue is full of
packets from a single wireless interface. Suppose xmit attempt from the
second wireless interface fails due to failed reclaim. Then the second
interface will not have a chance to recover even if subsequent reclaims
succeed. Possible solution is to attempt to wake all the s/w queues
belonging to driver interfaces.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-10-30 12:51:49 +02:00
Sergey Matyukevich
20da2ec06b qtnfmac: lock access to h/w in tx path
Fix tx path regression. Lock should be held when queuing packets
to h/w fifos in order to properly handle configurations with
multiple enabled interfaces.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:35:32 +03:00
Sergey Matyukevich
0593da274d qtnfmac: modify tx reclaim locking
Perform additional reclaim from qtnf_pcie_data_tx. Lock tx_lock serves only
reclaim synchronization purposes. Rename it accordingly and improve
granularity moving this lock to qtnf_pcie_data_tx_reclaim.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:05:07 +03:00
Sergey Matyukevich
cc75f9e5bc qtnfmac: introduce counter for Rx underflow events
Introduce counter for Rx underflow events. Export this counter via debugfs.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:05:05 +03:00
Sergey Matyukevich
3cbc3a0f19 qtnfmac: switch to kernel circ_buf implementation
Current code for both Rx and Tx queue management is a custom and incomplete
circular buffer implementation. It makes a lot of sense to switch to kernel
built-in circ_buf implementation.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:05:04 +03:00
Igor Mitsyanko
98f44cb065 qtnfmac: introduce new FullMAC driver for Quantenna chipsets
This patch adds support for new FullMAC WiFi driver for Quantenna
QSR10G chipsets.

QSR10G (aka Pearl) is Quantenna's 8x8, 160M, 11ac offering.
QSR10G supports 2 simultaneous WMACs - one 5G and one 2G.
5G WMAC supports 160M, 8x8 configuration. FW supports
up to 8 concurrent virtual interfaces on each WMAC.

Patch introduces 2 new drivers:
- qtnfmac.ko for interfacing with kernel wireless core
- qtnfmac_pearl_pcie.ko for interfacing with hardware over PCIe interface

Signed-off-by: Dmitrii Lebed <dlebed@quantenna.com>
Signed-off-by: Sergei Maksimenko <smaksimenko@quantenna.com>
Signed-off-by: Sergey Matyukevich <smatyukevich@quantenna.com>
Signed-off-by: Bindu Therthala <btherthala@quantenna.com>
Signed-off-by: Huizhao Wang <hwang@quantenna.com>
Signed-off-by: Kamlesh Rath <krath@quantenna.com>
Signed-off-by: Avinash Patil <avinashp@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24 17:04:13 +03:00