diff options
| author | Ioana Radulescu <ruxandra.radulescu@nxp.com> | 2018-10-01 13:44:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-02 22:24:08 -0700 |
| commit | afb90dbb5f7813ead3324ddf056b8937f78c8bd2 (patch) | |
| tree | c623a6f765d3d0b1474ee7b1e32b4455b2e0ae02 /drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | |
| parent | 4aaaf9b95abad9cfcd2ac9b07797bccdd4ec01c1 (diff) | |
dpaa2-eth: Add ethtool support for flow classification
Add support for inserting and deleting Rx flow classification
rules through ethtool.
We support classification based on some header fields for
flow-types ether, ip4, tcp4, udp4 and sctp4.
Rx queues are core affine, so the action argument effectively
selects on which cpu the matching frame will be processed.
Discarding the frame is also supported.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 953d29f5481c..108c137ea593 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -1897,6 +1897,11 @@ static int setup_dpni(struct fsl_mc_device *ls_dev) if (err) goto close; + priv->cls_rules = devm_kzalloc(dev, sizeof(struct dpaa2_eth_cls_rule) * + dpaa2_eth_fs_count(priv), GFP_KERNEL); + if (!priv->cls_rules) + goto close; + return 0; close: @@ -2012,6 +2017,18 @@ static const struct dpaa2_eth_dist_fields dist_fields[] = { .cls_field = NH_FLD_ETH_DA, .size = 6, }, { + .cls_prot = NET_PROT_ETH, + .cls_field = NH_FLD_ETH_SA, + .size = 6, + }, { + /* This is the last ethertype field parsed: + * depending on frame format, it can be the MAC ethertype + * or the VLAN etype. + */ + .cls_prot = NET_PROT_ETH, + .cls_field = NH_FLD_ETH_TYPE, + .size = 2, + }, { /* VLAN header */ .rxnfc_field = RXH_VLAN, .cls_prot = NET_PROT_VLAN, @@ -2109,6 +2126,33 @@ static int config_cls_key(struct dpaa2_eth_priv *priv, dma_addr_t key) return err; } +/* Size of the Rx flow classification key */ +int dpaa2_eth_cls_key_size(void) +{ + int i, size = 0; + + for (i = 0; i < ARRAY_SIZE(dist_fields); i++) + size += dist_fields[i].size; + + return size; +} + +/* Offset of header field in Rx classification key */ +int dpaa2_eth_cls_fld_off(int prot, int field) +{ + int i, off = 0; + + for (i = 0; i < ARRAY_SIZE(dist_fields); i++) { + if (dist_fields[i].cls_prot == prot && + dist_fields[i].cls_field == field) + return off; + off += dist_fields[i].size; + } + + WARN_ONCE(1, "Unsupported header field used for Rx flow cls\n"); + return 0; +} + /* Set Rx distribution (hash or flow classification) key * flags is a combination of RXH_ bits */ |