Commit Graph

5 Commits

Author SHA1 Message Date
Ioana Radulescu 685e39eaf4 dpaa2-eth: Add support for Rx traffic classes
The firmware reserves for each DPNI a number of RX frame queues
equal to the number of configured flows x number of configured
traffic classes.

Current driver configuration directs all incoming traffic to
FQs corresponding to TC0, leaving all other priority levels unused.

Start adding support for multiple ingress traffic classes, by
configuring the FQs associated with all priority levels, not just
TC0. All settings that are per-TC, such as those related to
hashing and flow steering, are also updated.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 12:04:32 -07:00
Nathan Chancellor 88fb831f77 dpaa2-eth: Use proper division helper in dpaa2_dbg_ch_show
When building arm32 allmodconfig:

ERROR: modpost: "__aeabi_uldivmod"
[drivers/net/ethernet/freescale/dpaa2/fsl-dpaa2-eth.ko] undefined!

frames and cdan are both of type __u64 (unsigned long long) so we need
to use div64_u64 to avoid this issues.

Fixes: 460fd830dd ("dpaa2-eth: add channel stat to debugfs")
Link: https://github.com/ClangBuiltLinux/linux/issues/1012
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reported-by: kernelci.org bot <bot@kernelci.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-28 14:31:43 -07:00
Ioana Ciornei 460fd830dd dpaa2-eth: add channel stat to debugfs
Compute the average number of frames processed for each CDAN (Channel
Data Availability Notification) and export it to debugfs detailed
channel stats.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:37:22 -07:00
Greg Kroah-Hartman 92aff5b467 dpaa2: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Because we don't care about the individual files, we can remove the
stored dentry for the files, as they are not needed to be kept track of
at all.

Cc: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-10 15:25:48 -07:00
Ioana Radulescu 091a19ea6e dpaa2-eth: add debugfs statistics
Export detailed driver counters through debugfs.

Statistics already available in ethtool are presented in a
structured manner. Includes per-core, per-FQ and per-channel statistics.

Also transition from module_fsl_mc_driver to explicit module_init/exit
in order to create the debugfs directory besides registering the driver.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-19 10:28:43 -08:00