From: Russell King <rmk+ker...@armlinux.org.uk> Date: Sun, 02 Jun 2019 15:13:00 +0100
> Some SFP modules do not like reads longer than 16 bytes, so read the > EEPROM in chunks of 16 bytes at a time. This behaviour is not specified > in the SFP MSAs, which specifies: > > "The serial interface uses the 2-wire serial CMOS E2PROM protocol > defined for the ATMEL AT24C01A/02/04 family of components." > > and > > "As long as the SFP+ receives an acknowledge, it shall serially clock > out sequential data words. The sequence is terminated when the host > responds with a NACK and a STOP instead of an acknowledge." > > We must avoid breaking a read across a 16-bit quantity in the diagnostic > page, thankfully all 16-bit quantities in that page are naturally > aligned. > > Signed-off-by: Russell King <rmk+ker...@armlinux.org.uk> Applied and queued up for -stable.
