Hi,
We are using a customized boards base on B4860, the SDK we're using is SDK1.6.
Now,we have a question about the usage of usdpaa-macless. In order to get the Ethernet frame form CPRI, we use usdpaa-macless to communicate between DSP and linux-user-space!
We have achieved the communication between DSP and linux-user-space, but it is not stable. Sometimes it come aross bpool count decrease and connections to disconnect.
We use three macless-ethernet at most(sometimes only use one), the device tree we use about macless is shown below:
bp16: buffer-pool@16 {
compatible = "fsl,b4860-bpool", "fsl,bpool";
fsl,bpid = <16>;
fsl,bpool-ethernet-cfg = <0 2048 0 1728 0 0>;
fsl,bpool-thresholds = <0x100 0x300 0x0 0x0>;
};
bp18: buffer-pool@18 {
compatible = "fsl,b4860-bpool", "fsl,bpool";
fsl,bpid = <18>;
fsl,bpool-ethernet-cfg = <0 2048 0 1728 0 0>;
fsl,bpool-thresholds = <0x100 0x300 0x0 0x0>;
};
bp19: buffer-pool@19 {
compatible = "fsl,b4860-bpool", "fsl,bpool";
fsl,bpid = <19>;
fsl,bpool-ethernet-cfg = <0 2048 0 1728 0 0>;
fsl,bpool-thresholds = <0x100 0x300 0x0 0x0>;
};
ethernet@16 {
compatible = "fsl,b4860-dpa-ethernet-macless", "fsl,dpa-ethernet-macless";
fsl,bman-buffer-pools = <&bp16>;
fsl,qman-frame-queues-rx = <4000 8>;
fsl,qman-frame-queues-tx = <4008 8>;
local-mac-address = [00 11 22 33 44 55];
};
ethernet@18 {
compatible = "fsl,b4860-dpa-ethernet-macless", "fsl,dpa-ethernet-macless";
fsl,bman-buffer-pools = <&bp18>;
fsl,qman-frame-queues-rx = <4016 8>;
fsl,qman-frame-queues-tx = <4024 8>;
local-mac-address = [00 11 22 33 44 56];
};
ethernet@19 {
compatible = "fsl,b4860-dpa-ethernet-macless", "fsl,dpa-ethernet-macless";
fsl,bman-buffer-pools = <&bp19>;
fsl,qman-frame-queues-rx = <4032 8>;
fsl,qman-frame-queues-tx = <4040 8>;
local-mac-address = [00 11 22 33 44 57];
};
Is there anything wrong when we use usdpaa-macless? Thanks!
