diff options
| author | Linu Cherian <lcherian@marvell.com> | 2024-11-05 18:26:20 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-11-11 14:15:58 -0800 |
| commit | 46799a41d292bf9970a847ce2392cf6afb845014 (patch) | |
| tree | ac39ee303d09059b7ec93a3926cfa0a89472fc31 | |
| parent | 70a7434bdb13b2da6888e8f75f2d2950573c4095 (diff) | |
devlink: Add documentation for OcteonTx2 AF
Add documentation for the following devlink params
- npc_mcam_high_zone_percent
- npc_def_rule_cntr
- nix_maxlf
Signed-off-by: Linu Cherian <lcherian@marvell.com>
Link: https://patch.msgid.link/20241105125620.2114301-4-lcherian@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | Documentation/networking/devlink/octeontx2.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/octeontx2.rst b/Documentation/networking/devlink/octeontx2.rst index d33a90dd44bf..84206537aedb 100644 --- a/Documentation/networking/devlink/octeontx2.rst +++ b/Documentation/networking/devlink/octeontx2.rst @@ -40,6 +40,27 @@ The ``octeontx2 AF`` driver implements the following driver-specific parameters. - runtime - Use to set the quantum which hardware uses for scheduling among transmit queues. Hardware uses weighted DWRR algorithm to schedule among all transmit queues. + * - ``npc_mcam_high_zone_percent`` + - u8 + - runtime + - Use to set the number of high priority zone entries in NPC MCAM that can be allocated + by a user, out of the three priority zone categories high, mid and low. + * - ``npc_def_rule_cntr`` + - bool + - runtime + - Use to enable or disable hit counters for the default rules in NPC MCAM. + Its not guaranteed that counters gets enabled and mapped to all the default rules, + since the counters are scarce and driver follows a best effort approach. + The default rule serves as the primary packet steering rule for a specific PF or VF, + based on its DMAC address which is installed by AF driver as part of its initialization. + Sample command to read hit counters for default rule from debugfs is as follows, + cat /sys/kernel/debug/cn10k/npc/mcam_rules + * - ``nix_maxlf`` + - u16 + - runtime + - Use to set the maximum number of LFs in NIX hardware block. This would be useful + to increase the availability of default resources allocated to enabled LFs like + MCAM entries for example. The ``octeontx2 PF`` driver implements the following driver-specific parameters. |