diff options
| author | Claudiu Manoil <claudiu.manoil@nxp.com> | 2021-01-25 14:23:53 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-02-16 11:48:20 -0500 |
| commit | fc054d563bfb676f808f26204dfe17c690eed1ba (patch) | |
| tree | 8ce6b59c99c0821434c7eda2d4add41f1d46493a /include/net.h | |
| parent | d0781c95bc448a211546404c779e78b29ada1214 (diff) | |
net: Introduce DSA class for Ethernet switches
DSA stands for Distributed Switch Architecture and it covers switches that
are connected to the CPU through an Ethernet link and generally use frame
tags to pass information about the source/destination ports to/from CPU.
Front panel ports are presented as regular ethernet devices in U-Boot and
they are expected to support the typical networking commands.
DSA switches may be cascaded, DSA class code does not currently support
this.
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Diffstat (limited to 'include/net.h')
| -rw-r--r-- | include/net.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net.h b/include/net.h index 13da69b7c1..b95d6a6f60 100644 --- a/include/net.h +++ b/include/net.h @@ -499,7 +499,13 @@ struct icmp_hdr { * maximum packet size and multiple of 32 bytes = 1536 */ #define PKTSIZE 1522 +#ifndef CONFIG_DM_DSA #define PKTSIZE_ALIGN 1536 +#else +/* Maximum DSA tagging overhead (headroom and/or tailroom) */ +#define DSA_MAX_OVR 256 +#define PKTSIZE_ALIGN (1536 + DSA_MAX_OVR) +#endif /* * Maximum receive ring size; that is, the number of packets |