arm/keystone/knav-qmss.rst

9 The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
10 the main hardware sub system which forms the backbone of the Keystone
11 multi-core Navigator. QMSS consist of queue managers, packed-data structure
15 management of the packet queues. Packets are queued/de-queued by writing or
29 Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt
31 Accumulator QMSS queues using PDSP firmware
33 The QMSS PDSP firmware support accumulator channel that can monitor a single
37 1 or 32 queues per channel. More description on the firmware is available in
40 	git://git.ti.com/keystone-rtos/qmss-lld.git
42 k2_qmss_pdsp_acc48_k2_le_1_0_0_9.bin firmware supports upto 48 accumulator
43 channels. This firmware is available under ti-keystone folder of
44 firmware.git at
46    git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
48 To use copy the firmware image to lib/firmware folder of the initramfs or
49 ubifs file system and provide a sym link to k2_qmss_pdsp_acc48_k2_le_1_0_0_9.bin
50 in the file system and boot up the kernel. User would see
52  "firmware file ks2_qmss_pdsp_acc48.bin downloaded for PDSP"
54 in the boot up log if loading of firmware to PDSP is successful.
56 Use of accumulated queues requires the firmware image to be present in the
57 file system. The driver doesn't acc queues to the supported queue range if
59 request to an acc queue and PDSP is not running. So make sure to copy firmware
60 to file system before using these queue types.