kernel/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c, branch linux-6.2.y

net: dpaa2-eth: export buffer pool info into a new debugfs file

2022-10-24T08:22:11Z

Export the allocated buffer pools, the number of buffers that they have currently and which channels are using which BP. The output looks like below: Buffer pool info for eth2: IDX BPID Buf count CH#0 CH#1 CH#2 CH#3 BP#0 1 5124 x x x x Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller

net: dpaa2-eth: export the CH# in the 'ch_stats' debug file

2022-10-24T08:22:11Z

Just give out an index for each channel that we export into the debug file in the form of CH#. This is purely to help corelate each channel information from one debugfs file to another one. Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller

dpaa2-eth: name the debugfs directory after the DPNI object

2021-05-21T21:05:04Z

Name the debugfs directory after the DPNI object instead of the netdev name since this can be changed after probe by udev rules. Signed-off-by: Ioana Ciornei Reviewed-by: Vladimir Oltean Signed-off-by: David S. Miller

dpaa2-eth: Convert to DEFINE_SHOW_ATTRIBUTE

2020-09-18T00:05:29Z

Signed-off-by: Qinglang Miao Reviewed-by: Ioana Ciornei Signed-off-by: David S. Miller

dpaa2-eth: add software counter for Tx frames converted to S/G

2020-06-30T00:42:48Z

With the previous commit, in case of insufficient SKB headroom on the Tx path instead of reallocing the SKB we now send a S/G frame descriptor. Export the number of occurences of this case as a per CPU counter (in debugfs) and a total number in the ethtool statistics - "tx converted sg frames'. Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller

dpaa2-eth: send a scatter-gather FD instead of realloc-ing

2020-06-30T00:42:48Z

Instead of realloc-ing the skb on the Tx path when the provided headroom is smaller than the HW requirements, create a Scatter/Gather frame descriptor with only one entry. Remove the '[drv] tx realloc frames' counter exposed previously through ethtool since it is no longer used. Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller

dpaa2-eth: trim debugfs FQ stats

2020-06-25T23:03:39Z

With the addition of multiple traffic classes support, the number of available frame queues grew significantly, overly inflating the debugfs FQ statistics entry. Update it to only show the queues which are actually in use (i.e. have a non-zero frame counter). Signed-off-by: Ioana Radulescu Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller

dpaa2-eth: Add support for Rx traffic classes

2020-06-01T19:04:32Z

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 Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller

dpaa2-eth: Use proper division helper in dpaa2_dbg_ch_show

2020-04-28T21:31:43Z

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: 460fd830dd9d ("dpaa2-eth: add channel stat to debugfs") Link: https://github.com/ClangBuiltLinux/linux/issues/1012 Signed-off-by: Nathan Chancellor Reported-by: kernelci.org bot Reviewed-by: Nick Desaulniers Signed-off-by: David S. Miller

dpaa2-eth: add channel stat to debugfs

2020-04-26T03:37:22Z

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 Signed-off-by: David S. Miller