diff options
| author | Ioana Radulescu <ruxandra.radulescu@nxp.com> | 2018-10-01 13:44:57 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-02 22:24:08 -0700 |
| commit | 4aaaf9b95abad9cfcd2ac9b07797bccdd4ec01c1 (patch) | |
| tree | f5079bee2586c0a5a37519da6f306ff2cbbd0134 /drivers/net/ethernet/freescale/dpaa2/dpni.c | |
| parent | f76c483a0b373fdfaedafefe8e4da8beb614e1e9 (diff) | |
dpaa2-eth: Configure Rx flow classification key
For firmware versions that support it, configure an Rx flow
classification key at probe time.
Hardware expects all rules in the classification table to share
the same key. So we setup a key containing all supported fields
at driver init and when a user adds classification rules through
ethtool, we will just mask out the unused header fields.
Since the key composition process is the same for flow
classification and hashing, reuse existing code where possible.
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/dpni.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpni.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni.c b/drivers/net/ethernet/freescale/dpaa2/dpni.c index a5c71fade554..be7fd2b6dda5 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpni.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c @@ -1600,6 +1600,48 @@ int dpni_get_api_version(struct fsl_mc_io *mc_io, } /** + * dpni_set_rx_fs_dist() - Set Rx flow steering distribution + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPNI object + * @cfg: Distribution configuration + * + * If the FS is already enabled with a previous call the classification + * key will be changed but all the table rules are kept. If the + * existing rules do not match the key the results will not be + * predictable. It is the user responsibility to keep key integrity. + * If cfg.enable is set to 1 the command will create a flow steering table + * and will classify packets according to this table. The packets that + * miss all the table rules will be classified according to settings + * made in dpni_set_rx_hash_dist() + * If cfg.enable is set to 0 the command will clear flow steering table. + * The packets will be classified according to settings made in + * dpni_set_rx_hash_dist() + */ +int dpni_set_rx_fs_dist(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + const struct dpni_rx_dist_cfg *cfg) +{ + struct dpni_cmd_set_rx_fs_dist *cmd_params; + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_FS_DIST, + cmd_flags, + token); + cmd_params = (struct dpni_cmd_set_rx_fs_dist *)cmd.params; + cmd_params->dist_size = cpu_to_le16(cfg->dist_size); + dpni_set_field(cmd_params->enable, RX_FS_DIST_ENABLE, cfg->enable); + cmd_params->tc = cfg->tc; + cmd_params->miss_flow_id = cpu_to_le16(cfg->fs_miss_flow_id); + cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** * dpni_set_rx_hash_dist() - Set Rx hash distribution * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |