fs: tftp: print message when stack can't keep us with TFTP windowsize

When the NIC driver doesn't configure enough buffers to keep up
with a big TFTP windowsize, error reporting is less than optimal,
e.g. on AX88x72A

  T BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBT T BBBBBBBBBBBBT
  BBBBBBBBBBBBBBBBBBBBBBBBBT

or on older DWMAC1000 (non-EQOS):

  WARNING: eth0: Rx error status (8800)
  T BBBBBBWARNING: eth0: Rx error status (8800)

While we probably want to:

  - decrease rate limit in __net_poll()
  - increase ring buffer depth for affected drivers

For now, at least print a helpful warning.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20230202133415.319020-2-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

0 files changed, 0 insertions, 0 deletions