| Message ID | 19fb6da036b04a465398f5b053b029ea04179aba.1606929734.git.baruch@tkos.co.il |
|---|---|
| State | New |
| Headers | show |
| Series | [ethtool,v2] Improve error message when SFP module is missing | expand |
On Wed, Dec 02, 2020 at 07:22:14PM +0200, Baruch Siach wrote: > ETHTOOL_GMODULEINFO request success indicates that SFP cage is present. > Failure of ETHTOOL_GMODULEEEPROM is most likely because SFP module is > not plugged in. Add an indication to the user as to what might be the > reason for the failure. > > Signed-off-by: Baruch Siach <baruch@tkos.co.il> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Andrew
On Wed, Dec 02, 2020 at 07:22:14PM +0200, Baruch Siach wrote: > ETHTOOL_GMODULEINFO request success indicates that SFP cage is present. > Failure of ETHTOOL_GMODULEEEPROM is most likely because SFP module is > not plugged in. Add an indication to the user as to what might be the > reason for the failure. > > Signed-off-by: Baruch Siach <baruch@tkos.co.il> Applied (with minor whitespace formatting cleanup), thank you. Michal > --- > v2: Limit message to likely errno values (Andrew Lunn) > --- > ethtool.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/ethtool.c b/ethtool.c > index 1d9067e774af..63b3a095eded 100644 > --- a/ethtool.c > +++ b/ethtool.c > @@ -4855,7 +4855,11 @@ static int do_getmodule(struct cmd_context *ctx) > eeprom->offset = geeprom_offset; > err = send_ioctl(ctx, eeprom); > if (err < 0) { > + int saved_errno = errno; > perror("Cannot get Module EEPROM data"); > + if (saved_errno == ENODEV || saved_errno == EIO || > + saved_errno == ENXIO) > + fprintf(stderr, "SFP module not in cage?\n"); > free(eeprom); > return 1; > } > -- > 2.29.2 >
diff --git a/ethtool.c b/ethtool.c index 1d9067e774af..63b3a095eded 100644 --- a/ethtool.c +++ b/ethtool.c @@ -4855,7 +4855,11 @@ static int do_getmodule(struct cmd_context *ctx) eeprom->offset = geeprom_offset; err = send_ioctl(ctx, eeprom); if (err < 0) { + int saved_errno = errno; perror("Cannot get Module EEPROM data"); + if (saved_errno == ENODEV || saved_errno == EIO || + saved_errno == ENXIO) + fprintf(stderr, "SFP module not in cage?\n"); free(eeprom); return 1; }
ETHTOOL_GMODULEINFO request success indicates that SFP cage is present. Failure of ETHTOOL_GMODULEEEPROM is most likely because SFP module is not plugged in. Add an indication to the user as to what might be the reason for the failure. Signed-off-by: Baruch Siach <baruch@tkos.co.il> --- v2: Limit message to likely errno values (Andrew Lunn) --- ethtool.c | 4 ++++ 1 file changed, 4 insertions(+)