xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: mscc: ocelot: automatically detect VCAP constants

Browse Source 
The numbers in struct vcap_props are not intuitive to derive, because
they are not a straightforward copy-and-paste from the reference manual
but instead rely on a fairly detailed level of understanding of the
layout of an entry in the TCAM and in the action RAM. For this reason,
bugs are very easy to introduce here.

Ease the work of hardware porters and read from hardware the constants
that were exported for this particular purpose. Note that this implies
that struct vcap_props can no longer be const.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean
2020-09-30 01:27:26 +03:00
committed by David S. Miller
parent e3aea296d8
commit 2096805497
9 changed files with 131 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/dsa/ocelot/felix.h
View File

@@ -21,7 +21,7 @@ struct felix_info {
unsigned int num_stats;
int num_ports;
int num_tx_queues;
const struct vcap_props *vcap;
struct vcap_props *vcap;
int switch_pci_bar;
int imdio_pci_bar;
const struct ptp_clock_info *ptp_caps;