lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 29 Sep 2022 14:03:40 +0200 From: Daniel Machon <daniel.machon@...rochip.com> To: <netdev@...r.kernel.org> CC: <davem@...emloft.net>, <petrm@...dia.com>, <maxime.chevallier@...tlin.com>, <thomas.petazzoni@...tlin.com>, <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>, <lars.povlsen@...rochip.com>, <Steen.Hegelund@...rochip.com>, <daniel.machon@...rochip.com>, <UNGLinuxDriver@...rochip.com>, <joe@...ches.com>, <linux@...linux.org.uk>, <horatiu.vultur@...rochip.com>, <Julia.Lawall@...ia.fr>, <vladimir.oltean@....com>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org> Subject: [PATCH net-next 4/6] 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@...rochip.com> --- .../ethernet/microchip/sparx5/sparx5_dcb.c | 116 ++++++++++++++++++ .../ethernet/microchip/sparx5/sparx5_port.c | 4 +- .../ethernet/microchip/sparx5/sparx5_port.h | 2 + .../ethernet/microchip/sparx5/sparx5_qos.c | 4 + .../ethernet/microchip/sparx5/sparx5_qos.h | 3 + 5 files changed, 127 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c index db17c124dac8..10aeb422b1ae 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c @@ -8,6 +8,22 @@ #include "sparx5_port.h" +static const struct sparx5_dcb_apptrust { + u8 selectors[256]; + int nselectors; + char *names; +} *apptrust[SPX5_PORTS]; + +/* Sparx5 supported apptrust configurations */ +static const struct sparx5_dcb_apptrust apptrust_conf[4] = { + /* Empty *must* be first */ + { { 0 }, 0, "empty" }, + { { IEEE_8021QAZ_APP_SEL_DSCP }, 1, "dscp" }, + { { DCB_APP_SEL_PCP }, 1, "pcp" }, + { { IEEE_8021QAZ_APP_SEL_DSCP, + DCB_APP_SEL_PCP }, 2, "dscp pcp" }, +}; + /* Validate app entry. * * Check for valid selectors and valid protocol and priority ranges. @@ -37,12 +53,59 @@ 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(apptrust_conf); i++) { + match = true; + for (ii = 0; ii < nselectors; ii++) { + if (apptrust_conf[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(apptrust_conf); i++) + pr_info("order: %s\n", apptrust_conf[i].names); + *err = -EOPNOTSUPP; + } + + return i; +} + +static bool sparx5_dcb_apptrust_contains(int portno, u8 selector) +{ + int i; + + for (i = 0; i < IEEE_8021QAZ_APP_SEL_MAX + 1; i++) + if (apptrust[portno]->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 +116,12 @@ 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); } @@ -95,7 +164,54 @@ 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; + + apptrust[port->portno] = &apptrust_conf[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 = apptrust[port->portno]; + + memcpy(selectors, trust->selectors, trust->nselectors); + *nselectors = trust->nselectors; + + return 0; +} + +int sparx5_dcb_init(struct sparx5 *sparx5) +{ + struct sparx5_port *port; + int i; + + for (i = 0; i < SPX5_PORTS; i++) { + port = sparx5->ports[i]; + if (!port) + continue; + /* Initialize [dscp, pcp] default trust */ + apptrust[port->portno] = &apptrust_conf[3]; + } + + return sparx5_dcb_app_update(port->ndev); +} + 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, }; diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 9ffaaf34d196..99e86e87aa16 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 9c5fb6b651db..fae9f5464548 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h @@ -97,6 +97,8 @@ 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 { diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_qos.c b/drivers/net/ethernet/microchip/sparx5/sparx5_qos.c index 1e79d0ef0cb8..379e540e5e6a 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_qos.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_qos.c @@ -389,6 +389,10 @@ int sparx5_qos_init(struct sparx5 *sparx5) if (ret < 0) return ret; + ret = sparx5_dcb_init(sparx5); + if (ret < 0) + return ret; + return 0; } diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_qos.h b/drivers/net/ethernet/microchip/sparx5/sparx5_qos.h index ced35033a6c5..6d248cbd485b 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_qos.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_qos.h @@ -61,6 +61,9 @@ struct sparx5_dwrr { int sparx5_qos_init(struct sparx5 *sparx5); +/* sparx5_dcb.c */ +int sparx5_dcb_init(struct sparx5 *sparx5); + /* Multi-Queue Priority */ int sparx5_tc_mqprio_add(struct net_device *ndev, u8 num_tc); int sparx5_tc_mqprio_del(struct net_device *ndev); -- 2.34.1
Powered by blists - more mailing lists