Using the NAPI or netdev frag cache along with other drivers can lead to
32 KiB pages being held for a long time, despite only being used for
very few page fragments.
This can happen if the driver grabs one or two fragments for rx ring
refill, while other drivers use (and free up) the remaining fragments.
The 32 KiB higher-order page can only be freed once all users have freed
their fragments.
Depending on the traffic patterns, this can waste a lot of memory and
look a lot like a memory leak.
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76u_skb_dma_info routine in mt76x02-usb module and rename it in
mt76x02u_skb_dma_info. Moreover move mt76x02u_set_txinfo in
mt76x02_usb_core.c. This is a preliminary patch to move MT_TXD_INFO,
MT_MCU_MSG and MT_RX_FCE_INFO defs in mt76x02-lib module since other
chipsets (e.g. mt7603) use different dma definitions
Acked-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Introduce mt76x02_usb_mcu.c in order to contain mt76x02u mcu related
code. Add mt76x02-usb module as a container for mt76x02 usb code.
This is a preliminary patch to move MT_TXD_INFO, MT_MCU_MSG and
MT_RX_FCE_INFO defs in mt76x02-lib module since other chipsets (e.g.
mt7603) use different dma definitions
Acked-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Use mcu common helpers instead of usb specific routines.
Add static qualifier to the following functions:
- mt76u_mcu_msg_alloc
- __mt76u_mcu_send_msg
- mt76u_mcu_send_msg
- mt76u_mcu_wr_rp
- mt76u_mcu_rd_rp
- mt76u_wr_rp
- mt76u_rd_rp
This is a preliminary patch to move mt76x02 usb mcu code in
mt76x02-usb module
Acked-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Add USB implementation for read and write reg pair routines.
The actual implementation can use mcu related routines according to
MCU state
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Introduce mt76_mcu_ops data structure to contain mcu related function
pointers. This is a preliminary patch to move mt76x02 usb mcu code in
mt76x02-usb module
Acked-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Use the same AC to hardware queue mappings for all subdrivers.
Note: this change BK and BE mappings for USB drivers.
Signed-off-by: Stanislaw Gruszka <[email protected]>
Felix Fietkau