diff options
author | Daniel Machon <daniel.machon@microchip.com> | 2022-11-01 12:48:32 +0300 |
---|---|---|
committer | Paolo Abeni <pabeni@redhat.com> | 2022-11-03 17:16:50 +0300 |
commit | 23f8382cd95db36dc32ca81ce72d0936caa34f80 (patch) | |
tree | 689951e7462ad975848a9a992a6339cdeb025657 /drivers | |
parent | 92ef3d011e17238483a336bdb714309f597e05d2 (diff) | |
download | linux-23f8382cd95db36dc32ca81ce72d0936caa34f80.tar.xz |
net: microchip: sparx5: add support for apptrust
Make use of set/getapptrust() to implement per-selector trust and trust
order.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c | 122 | ||||
-rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_port.c | 4 | ||||
-rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_port.h | 2 |
3 files changed, 126 insertions, 2 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c index df96c17582ef..96100a063e13 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c @@ -8,6 +8,37 @@ #include "sparx5_port.h" +enum sparx5_dcb_apptrust_values { + SPARX5_DCB_APPTRUST_EMPTY, + SPARX5_DCB_APPTRUST_DSCP, + SPARX5_DCB_APPTRUST_PCP, + SPARX5_DCB_APPTRUST_DSCP_PCP, + __SPARX5_DCB_APPTRUST_MAX +}; + +static const struct sparx5_dcb_apptrust { + u8 selectors[IEEE_8021QAZ_APP_SEL_MAX + 1]; + int nselectors; +} *sparx5_port_apptrust[SPX5_PORTS]; + +static const char *sparx5_dcb_apptrust_names[__SPARX5_DCB_APPTRUST_MAX] = { + [SPARX5_DCB_APPTRUST_EMPTY] = "empty", + [SPARX5_DCB_APPTRUST_DSCP] = "dscp", + [SPARX5_DCB_APPTRUST_PCP] = "pcp", + [SPARX5_DCB_APPTRUST_DSCP_PCP] = "dscp pcp" +}; + +/* Sparx5 supported apptrust policies */ +static const struct sparx5_dcb_apptrust + sparx5_dcb_apptrust_policies[__SPARX5_DCB_APPTRUST_MAX] = { + /* Empty *must* be first */ + [SPARX5_DCB_APPTRUST_EMPTY] = { { 0 }, 0 }, + [SPARX5_DCB_APPTRUST_DSCP] = { { IEEE_8021QAZ_APP_SEL_DSCP }, 1 }, + [SPARX5_DCB_APPTRUST_PCP] = { { DCB_APP_SEL_PCP }, 1 }, + [SPARX5_DCB_APPTRUST_DSCP_PCP] = { { IEEE_8021QAZ_APP_SEL_DSCP, + DCB_APP_SEL_PCP }, 2 }, +}; + /* Validate app entry. * * Check for valid selectors and valid protocol and priority ranges. @@ -37,12 +68,62 @@ static int sparx5_dcb_app_validate(struct net_device *dev, return err; } +/* Validate apptrust configuration. + * + * Return index of supported apptrust configuration if valid, otherwise return + * error. + */ +static int sparx5_dcb_apptrust_validate(struct net_device *dev, u8 *selectors, + int nselectors, int *err) +{ + bool match; + int i, ii; + + for (i = 0; i < ARRAY_SIZE(sparx5_dcb_apptrust_policies); i++) { + if (sparx5_dcb_apptrust_policies[i].nselectors != nselectors) + continue; + match = true; + for (ii = 0; ii < nselectors; ii++) { + if (sparx5_dcb_apptrust_policies[i].selectors[ii] != + *(selectors + ii)) { + match = false; + break; + } + } + if (match) + break; + } + + /* Requested trust configuration is not supported */ + if (!match) { + netdev_err(dev, "Valid apptrust configurations are:\n"); + for (i = 0; i < ARRAY_SIZE(sparx5_dcb_apptrust_names); i++) + pr_info("order: %s\n", sparx5_dcb_apptrust_names[i]); + *err = -EOPNOTSUPP; + } + + return i; +} + +static bool sparx5_dcb_apptrust_contains(int portno, u8 selector) +{ + const struct sparx5_dcb_apptrust *conf = sparx5_port_apptrust[portno]; + int i; + + for (i = 0; i < conf->nselectors; i++) + if (conf->selectors[i] == selector) + return true; + + return false; +} + static int sparx5_dcb_app_update(struct net_device *dev) { struct dcb_app app_itr = { .selector = DCB_APP_SEL_PCP }; struct sparx5_port *port = netdev_priv(dev); struct sparx5_port_qos_pcp_map *pcp_map; struct sparx5_port_qos qos = {0}; + int portno = port->portno; int i; pcp_map = &qos.pcp.map; @@ -53,6 +134,12 @@ static int sparx5_dcb_app_update(struct net_device *dev) pcp_map->map[i] = dcb_getapp(dev, &app_itr); } + /* Enable use of pcp for queue classification ? */ + if (sparx5_dcb_apptrust_contains(portno, DCB_APP_SEL_PCP)) { + qos.pcp.qos_enable = true; + qos.pcp.dp_enable = qos.pcp.qos_enable; + } + return sparx5_port_qos_set(port, &qos); } @@ -95,9 +182,40 @@ static int sparx5_dcb_ieee_delapp(struct net_device *dev, struct dcb_app *app) return sparx5_dcb_app_update(dev); } +static int sparx5_dcb_setapptrust(struct net_device *dev, u8 *selectors, + int nselectors) +{ + struct sparx5_port *port = netdev_priv(dev); + int err = 0, idx; + + idx = sparx5_dcb_apptrust_validate(dev, selectors, nselectors, &err); + if (err < 0) + return err; + + sparx5_port_apptrust[port->portno] = &sparx5_dcb_apptrust_policies[idx]; + + return sparx5_dcb_app_update(dev); +} + +static int sparx5_dcb_getapptrust(struct net_device *dev, u8 *selectors, + int *nselectors) +{ + struct sparx5_port *port = netdev_priv(dev); + const struct sparx5_dcb_apptrust *trust; + + trust = sparx5_port_apptrust[port->portno]; + + memcpy(selectors, trust->selectors, trust->nselectors); + *nselectors = trust->nselectors; + + return 0; +} + const struct dcbnl_rtnl_ops sparx5_dcbnl_ops = { .ieee_setapp = sparx5_dcb_ieee_setapp, .ieee_delapp = sparx5_dcb_ieee_delapp, + .dcbnl_setapptrust = sparx5_dcb_setapptrust, + .dcbnl_getapptrust = sparx5_dcb_getapptrust, }; int sparx5_dcb_init(struct sparx5 *sparx5) @@ -110,6 +228,10 @@ int sparx5_dcb_init(struct sparx5 *sparx5) if (!port) continue; port->ndev->dcbnl_ops = &sparx5_dcbnl_ops; + /* Initialize [dscp, pcp] default trust */ + sparx5_port_apptrust[port->portno] = + &sparx5_dcb_apptrust_policies + [SPARX5_DCB_APPTRUST_DSCP_PCP]; } return 0; diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 9444ec4fff15..3cd310f5b9ee 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c @@ -1163,8 +1163,8 @@ int sparx5_port_qos_pcp_set(const struct sparx5_port *port, int i; /* Enable/disable pcp and dp for qos classification. */ - spx5_rmw(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_SET(1) | - ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_SET(1), + spx5_rmw(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_SET(qos->qos_enable) | + ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_SET(qos->dp_enable), ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA | ANA_CL_QOS_CFG_PCP_DEI_DP_ENA, sparx5, ANA_CL_QOS_CFG(port->portno)); diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h index 331d2ad0913a..ae9625cbca8e 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h @@ -101,6 +101,8 @@ struct sparx5_port_qos_pcp_map { struct sparx5_port_qos_pcp { struct sparx5_port_qos_pcp_map map; + bool qos_enable; + bool dp_enable; }; struct sparx5_port_qos { |