Hi Jose,
On 5/25/2018 7:35 PM, Jose Abreu wrote:
Hi Bhadram,
On 25-05-2018 05:41, Bhadram Varka wrote:
Hi Jose,
On 5/24/2018 3:01 PM, Jose Abreu wrote:
Hi Bhadram,
On 24-05-2018 06:58, Bhadram Varka wrote:
After some time if check Tx descriptor status - then I see only
below
[..]
[85788.286730] 027 [0x827951b0]: 0xf854f000 0x0 0x16d8
0x90000000
index 025 and 026 descriptors processed but not index 027.
At this stage Tx DMA is always in below state -
■ 3'b011: Running (Reading Data from system memory
buffer and queuing it to the Tx buffer (Tx FIFO))
Thats strange, I think the descriptors look okay though. I will
need the registers values (before the lock) and, if possible, the
git bisect output.
Attaching the register dump file after the issue observed.
Please check once.
----->8-----
0x112c = 0x0000003F
0x11ac = 0x0000003F
0x122c = 0x0000003F
0x12ac = 0x0000003F
0x1130 = 0x0000003F
0x11b0 = 0x0000003F
0x1230 = 0x0000003F
0x12b0 = 0x0000003F
----->8-----
This can't be right, it should be DMA_{RX/TX}_SIZE - 1 = 511. Did
you change these values in the code?
Yes. I have changed the descriptor length to 64 - so that searching for
the current descriptor status would be easy.
--
Thanks,
Bhadram.
