Le 05/28/15 19:23, Andrew Lunn a écrit : > On Thu, May 28, 2015 at 06:58:14PM -0700, Florian Fainelli wrote: >> Le 05/28/15 18:42, Mathieu Olivari a écrit : >>> All switch registers can now be dumped using regmap/debugfs. >>> >>> \# cat /sys/kernel/debug/regmap/<mdiobus>/registers >>> 0000: 00001302 >>> 0004: ... >>> ... >> >> ethtool has a register dump command, which should already be supported >> by the current code in net/dsa/slave.c, is there a particular reason why >> you use debugfs here instead? > > Hi Florian > > ethtool -d allows you to dump the registers for a port which has a > slave device. It is sometimes useful to dump the cpu ports registers, > or DSA ports, i.e. inter switch ports. Marvell devices also have two > sets of global registers, not specific to any port. > > For my debugging, i have code which allows you to read the registers > via debugfs. Fair enough, are there other global "things" besides counters that could deserve adding maybe some sort of global/master net_device to help query switch-wide information? -- Florian -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
