kernel/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c, branch linux-6.18.y

eth: fbnic: Create fw_log file in DebugFS

2025-07-09T00:05:46Z

Allow reading the firmware log in DebugFS by accessing the fw_log file. Buffer is read while a spinlock is acquired. Signed-off-by: Lee Trager Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20250702192207.697368-7-lee@trager.us Signed-off-by: Jakub Kicinski

eth: fbnic: support listing tcam content via debugfs

2025-02-10T16:26:51Z

The device has a handful of relatively small TCAM tables, support dumping the driver state via debugfs. # ethtool -N eth0 flow-type tcp6 \ dst-ip 1111::2222 dst-port $((0x1122)) \ src-ip 3333::4444 src-port $((0x3344)) \ action 2 Added rule with ID 47 # cd $dbgfs # cat ip_src Idx S TCAM Bitmap V Addr/Mask ------------------------------------ 00 1 00020000,00000000 6 33330000000000000000000000004444 00000000000000000000000000000000 ... # cat ip_dst Idx S TCAM Bitmap V Addr/Mask ------------------------------------ 00 1 00020000,00000000 6 11110000000000000000000000002222 00000000000000000000000000000000 ... # cat act_tcam Idx S Value/Mask RSS Dest ------------------------------------------------------------------------ ... 49 1 0000 0000 0000 0000 0000 0000 1122 3344 0000 9c00 0088 000f 00000212 ffff ffff ffff ffff ffff ffff 0000 0000 ffff 23ff ff00 ... The ipo_* tables are for outer IP addresses. The tce_* table is for directing/stealing traffic to NC-SI. Signed-off-by: Alexander Duyck Link: https://patch.msgid.link/20250206235334.1425329-8-kuba@kernel.org Signed-off-by: Jakub Kicinski

eth: fbnic: add MAC address TCAM to debugfs

2025-02-06T10:44:20Z

Add read only access to the 32-entry MAC address TCAM via debugfs. BMC filtering shares the same table so this is quite useful to access during debug. See next commit for an example output. Signed-off-by: Alexander Duyck Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250204010038.1404268-1-kuba@kernel.org Signed-off-by: Paolo Abeni

eth: fbnic: add PCIe hardware statistics

2024-11-19T02:43:41Z

Add PCIe hardware statistics support to the fbnic driver. These stats provide insight into PCIe transaction performance and error conditions. Which includes, read/write and completion TLP counts and DWORD counts and debug counters for tag, completion credit and NP credit exhaustion The stats are exposed via debugfs and can be used to monitor PCIe performance and debug PCIe issues. Signed-off-by: Sanman Pradhan Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20241115015344.757567-5-kuba@kernel.org Signed-off-by: Jakub Kicinski

eth: fbnic: add basic debugfs structure

2024-11-19T02:43:41Z

Add the usual debugfs structure: fbnic/ $pci-id/ device-fileA device-fileB This patch only adds the directories, subsequent changes will add files. Reviewed-by: Andrew Lunn Reviewed-by: Kalesh AP Link: https://patch.msgid.link/20241115015344.757567-4-kuba@kernel.org Signed-off-by: Jakub Kicinski