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dpaa2-eth: Use new API for Rx flow hashing

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The Management Complex (MC) firmware initially allowed the
configuration of a single key to be used both for Rx flow hashing
and flow classification. This prevented us from supporting
Rx flow classification through ethtool.

Starting with version 10.7.0, the Management Complex(MC) offers
a new set of APIs for separate configuration of Rx hashing and
classification keys.

Update the Rx flow hashing support to use the new API, if available.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ioana Radulescu
2018-10-01 13:44:55 +03:00
committed by David S. Miller
parent f3edc2dbe0
commit df85aeb9b6
5 changed files with 142 additions and 19 deletions
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32
drivers/net/ethernet/freescale/dpaa2/dpni.c
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@@ -1598,3 +1598,35 @@ int dpni_get_api_version(struct fsl_mc_io *mc_io,
return 0;
}
/**
* 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_'
* @token: Token of DPNI object
* @cfg: Distribution configuration
* If cfg.enable is set to 1 the packets will be classified using a hash
* function based on the key received in cfg.key_cfg_iova parameter.
* If cfg.enable is set to 0 the packets will be sent to the default queue
*/
int dpni_set_rx_hash_dist(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
const struct dpni_rx_dist_cfg *cfg)
{
struct dpni_cmd_set_rx_hash_dist *cmd_params;
struct fsl_mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_HASH_DIST,
cmd_flags,
token);
cmd_params = (struct dpni_cmd_set_rx_hash_dist *)cmd.params;
cmd_params->dist_size = cpu_to_le16(cfg->dist_size);
dpni_set_field(cmd_params->enable, RX_HASH_DIST_ENABLE, cfg->enable);
cmd_params->tc = cfg->tc;
cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}