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| author |   Pablo Cascón <pablo.cascon@netronome.com> | 2019-04-19 17:20:09 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-04-19 21:00:31 -0700 |
| commit | 4ef6cbe80d71058dfd53f11a2801be4b6d227a4a (patch) | |
| tree | c9380fcd47cf9717d325449d8e9dfc3447653b64 /drivers/net/ethernet/netronome | |
| parent | Merge branch 'hns3-next' (diff) | |
| download | linux-dev-4ef6cbe80d71058dfd53f11a2801be4b6d227a4a.tar.xz linux-dev-4ef6cbe80d71058dfd53f11a2801be4b6d227a4a.zip | |
nfp: add SR-IOV trusted VF support
By default VFs are not trusted. Add ndo_set_vf_trust support to toggle
a new per-VF bit. Coupled with FW with this capability allows a
trusted VF to change its MAC even after being administratively set by
the PF. Also populate the trusted field on ndo_get_vf_config. Add the
same ndo to the representors.
Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome')
4 files changed, 33 insertions, 2 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 58657fe504d7..b82b684f52ce 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -3590,6 +3590,7 @@ const struct net_device_ops nfp_net_netdev_ops = { .ndo_set_vf_mac = nfp_app_set_vf_mac, .ndo_set_vf_vlan = nfp_app_set_vf_vlan, .ndo_set_vf_spoofchk = nfp_app_set_vf_spoofchk, + .ndo_set_vf_trust = nfp_app_set_vf_trust, .ndo_get_vf_config = nfp_app_get_vf_config, .ndo_set_vf_link_state = nfp_app_set_vf_link_state, .ndo_setup_tc = nfp_port_setup_tc, diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c index 08e9bfa95f9b..036edcc1fa18 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c @@ -267,6 +267,7 @@ const struct net_device_ops nfp_repr_netdev_ops = { .ndo_set_vf_mac = nfp_app_set_vf_mac, .ndo_set_vf_vlan = nfp_app_set_vf_vlan, .ndo_set_vf_spoofchk = nfp_app_set_vf_spoofchk, + .ndo_set_vf_trust = nfp_app_set_vf_trust, .ndo_get_vf_config = nfp_app_get_vf_config, .ndo_set_vf_link_state = nfp_app_set_vf_link_state, .ndo_fix_features = nfp_repr_fix_features, diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c index b6ec46ed0540..3fdaaf8ed2ba 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) -/* Copyright (C) 2017 Netronome Systems, Inc. */ +/* Copyright (C) 2017-2019 Netronome Systems, Inc. */ #include <linux/bitfield.h> #include <linux/errno.h> @@ -146,6 +146,30 @@ int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable) "spoofchk"); } +int nfp_app_set_vf_trust(struct net_device *netdev, int vf, bool enable) +{ + struct nfp_app *app = nfp_app_from_netdev(netdev); + unsigned int vf_offset; + u8 vf_ctrl; + int err; + + err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_TRUST, + "trust"); + if (err) + return err; + + /* Write trust control bit to VF entry in VF config symbol */ + vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ + + NFP_NET_VF_CFG_CTRL; + vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset); + vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_TRUST; + vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_TRUST, enable); + writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset); + + return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_TRUST, + "trust"); +} + int nfp_app_set_vf_link_state(struct net_device *netdev, int vf, int link_state) { @@ -213,6 +237,7 @@ int nfp_app_get_vf_config(struct net_device *netdev, int vf, ivi->qos = FIELD_GET(NFP_NET_VF_CFG_VLAN_QOS, vlan_tci); ivi->spoofchk = FIELD_GET(NFP_NET_VF_CFG_CTRL_SPOOF, flags); + ivi->trusted = FIELD_GET(NFP_NET_VF_CFG_CTRL_TRUST, flags); ivi->linkstate = FIELD_GET(NFP_NET_VF_CFG_CTRL_LINK_STATE, flags); return 0; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.h b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.h index c9f09c5bb5ee..a3db0cbf6425 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ -/* Copyright (C) 2017 Netronome Systems, Inc. */ +/* Copyright (C) 2017-2019 Netronome Systems, Inc. */ #ifndef _NFP_NET_SRIOV_H_ #define _NFP_NET_SRIOV_H_ @@ -19,12 +19,14 @@ #define NFP_NET_VF_CFG_MB_CAP_VLAN (0x1 << 1) #define NFP_NET_VF_CFG_MB_CAP_SPOOF (0x1 << 2) #define NFP_NET_VF_CFG_MB_CAP_LINK_STATE (0x1 << 3) +#define NFP_NET_VF_CFG_MB_CAP_TRUST (0x1 << 4) #define NFP_NET_VF_CFG_MB_RET 0x2 #define NFP_NET_VF_CFG_MB_UPD 0x4 #define NFP_NET_VF_CFG_MB_UPD_MAC (0x1 << 0) #define NFP_NET_VF_CFG_MB_UPD_VLAN (0x1 << 1) #define NFP_NET_VF_CFG_MB_UPD_SPOOF (0x1 << 2) #define NFP_NET_VF_CFG_MB_UPD_LINK_STATE (0x1 << 3) +#define NFP_NET_VF_CFG_MB_UPD_TRUST (0x1 << 4) #define NFP_NET_VF_CFG_MB_VF_NUM 0x7 /* VF config entry @@ -35,6 +37,7 @@ #define NFP_NET_VF_CFG_MAC_HI 0x0 #define NFP_NET_VF_CFG_MAC_LO 0x6 #define NFP_NET_VF_CFG_CTRL 0x4 +#define NFP_NET_VF_CFG_CTRL_TRUST 0x8 #define NFP_NET_VF_CFG_CTRL_SPOOF 0x4 #define NFP_NET_VF_CFG_CTRL_LINK_STATE 0x3 #define NFP_NET_VF_CFG_LS_MODE_AUTO 0 @@ -48,6 +51,7 @@ int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac); int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos, __be16 vlan_proto); int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting); +int nfp_app_set_vf_trust(struct net_device *netdev, int vf, bool setting); int nfp_app_set_vf_link_state(struct net_device *netdev, int vf, int link_state); int nfp_app_get_vf_config(struct net_device *netdev, int vf, |