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| author | Ioana Ciornei <ioana.ciornei@nxp.com> | 2021-07-29 20:18:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-29 21:34:45 +0100 |
| commit | e0ead825a1f1c9ea4b3a0bf7f2a7e0e10fb71074 (patch) | |
| tree | 65b6a60e526a06b7f1b948b2eaf905533ae97cb5 /drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | |
| parent | cbc2a8893b599dad7308e647d68e388bc175070e (diff) | |
| download | lwn-e0ead825a1f1c9ea4b3a0bf7f2a7e0e10fb71074.tar.gz lwn-e0ead825a1f1c9ea4b3a0bf7f2a7e0e10fb71074.zip | |
dpaa2-switch: add support for port mirroring
Add support for per port mirroring for the DPAA2 switch. We support
only single mirror port, therefore we allow mirroring rules only as long
as the destination port is always the same.
Unlike all the actions (drop, redirect, trap) already supported by the
dpaa2-switch driver, adding mirroring filters in shared blocks is not
achieved by a singular ACL entry added in a table shared by the ports.
This is why, when a new mirror filter is added in a block we have to got
through all the switch ports sharing it and configure the filter
individually on all.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c index 1806012f41d2..3857d9093623 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -3067,6 +3067,7 @@ static int dpaa2_switch_port_init(struct ethsw_port_priv *port_priv, u16 port) filter_block->in_use = true; filter_block->num_acl_rules = 0; INIT_LIST_HEAD(&filter_block->acl_entries); + INIT_LIST_HEAD(&filter_block->mirror_entries); err = dpaa2_switch_port_acl_tbl_bind(port_priv, filter_block); if (err) @@ -3284,6 +3285,11 @@ static int dpaa2_switch_probe(struct fsl_mc_device *sw_dev) if (err) goto err_stop; + /* By convention, if the mirror port is equal to the number of switch + * interfaces, then mirroring of any kind is disabled. + */ + ethsw->mirror_port = ethsw->sw_attr.num_ifs; + /* Register the netdev only when the entire setup is done and the * switch port interfaces are ready to receive traffic */ |