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dpaa2-eth: install a single steering rule when SHARED_FS is enabled

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When SHARED_FS is enabled on a DPNI object the flow steering tables are
shared between all the traffic classes. Modify the driver so that we
only add a new flow steering entry on the TC#0 when this new option is
enabled.

Signed-off-by: Ionut-robert Aron <ionut-robert.aron@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ionut-robert Aron 2020-09-25 17:44:21 +03:00 committed by David S. Miller
parent 4c33a5bd06
commit 5e29c16f3a
3 changed files with 17 additions and 1 deletions
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12
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
View file

@ -3454,6 +3454,12 @@ static int dpaa2_eth_config_hash_key(struct dpaa2_eth_priv *priv, dma_addr_t key
dev_err(dev, "dpni_set_rx_hash_dist failed\n");
break;
}
/* If the flow steering / hashing key is shared between all
* traffic classes, install it just once
*/
if (priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
break;
}
return err;
@ -3480,6 +3486,12 @@ static int dpaa2_eth_config_cls_key(struct dpaa2_eth_priv *priv, dma_addr_t key)
dev_err(dev, "dpni_set_rx_fs_dist failed\n");
break;
}
/* If the flow steering / hashing key is shared between all
* traffic classes, install it just once
*/
if (priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
break;
}
return err;

2
drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
View file

@ -618,7 +618,7 @@ static int dpaa2_eth_do_cls_rule(struct net_device *net_dev,
err = dpni_remove_fs_entry(priv->mc_io, 0,
priv->mc_token, i,
&rule_cfg);
if (err)
if (err || priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
break;
}

4
drivers/net/ethernet/freescale/dpaa2/dpni.h
View file

@ -75,6 +75,10 @@ struct fsl_mc_io;
* Disables the flow steering table.
*/
#define DPNI_OPT_NO_FS 0x000020
/**
* Flow steering table is shared between all traffic classes
*/
#define DPNI_OPT_SHARED_FS 0x001000
int dpni_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,