octeontx2-af: Add NPC MCAM entry allocation status to debugfs

Browse source

Added support to display current NPC MCAM entries and counter's allocation
status ín debugfs.

cat /sys/kernel/debug/octeontx2/npc/mcam_info' will dump following info
- MCAM Rx and Tx keysize
- Total MCAM entries and counters
- Current available count
- Count of number of MCAM entries and counters allocated
  by a RVU PF/VF device.

Also, one NPC MCAM counter (last one) is reserved and mapped to
NPC RX_INTF's MISS_ACTION to count dropped packets due to no MCAM
entry match. This pkt drop counter can be checked via debugfs.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Sunil Goutham 2019-11-14 10:56:22 +05:30 • committed by David S. Miller

parent f967488d09

commit e07fb507ae

3 changed files with 213 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

drivers/net/ethernet/marvell/octeontx2/af/rvu.h

View file

154

drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c

View file

52

drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c

View file