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author | Andrii Staikov <andrii.staikov@intel.com> | 2023-11-29 17:24:12 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-05 23:14:25 +0300 |
commit | d973bf8ec3e861bd4e0b1bbe6a23c9e63a63a369 (patch) | |
tree | 53864d59312a35fd303125bd0e323832efc749ec /drivers/net/ethernet/intel | |
parent | e54c52ee07b9020c7d6f9a12a2f769bb7a84ad47 (diff) | |
download | linux-d973bf8ec3e861bd4e0b1bbe6a23c9e63a63a369.tar.xz |
i40e: Fix VF disable behavior to block all traffic
[ Upstream commit 31deb12e85c35ddd2c037f0107d05d8674cab2c0 ]
Currently, if a VF is disabled using the
'ip link set dev $ETHX vf $VF_NUM state disable' command, the VF is still
able to receive traffic.
Fix the behavior of the 'ip link set dev $ETHX vf $VF_NUM state disable'
to completely shutdown the VF's queues making it entirely disabled and
not able to receive or send any traffic.
Modify the behavior of the 'ip link set $ETHX vf $VF_NUM state enable'
command to make a VF do reinitialization bringing the queues back up.
Co-developed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Jan Sokolowski <jan.sokolowski@intel.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Andrii Staikov <andrii.staikov@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 32 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 1 |
2 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index a97ca2224da0..cc4c53470db2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -2605,6 +2605,14 @@ static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) int aq_ret = 0; int i; + if (vf->is_disabled_from_host) { + aq_ret = -EPERM; + dev_info(&pf->pdev->dev, + "Admin has disabled VF %d, will not enable queues\n", + vf->vf_id); + goto error_param; + } + if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { aq_ret = -EINVAL; goto error_param; @@ -4732,9 +4740,12 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) struct i40e_link_status *ls = &pf->hw.phy.link_info; struct virtchnl_pf_event pfe; struct i40e_hw *hw = &pf->hw; + struct i40e_vsi *vsi; + unsigned long q_map; struct i40e_vf *vf; int abs_vf_id; int ret = 0; + int tmp; if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); @@ -4757,17 +4768,38 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) switch (link) { case IFLA_VF_LINK_STATE_AUTO: vf->link_forced = false; + vf->is_disabled_from_host = false; + /* reset needed to reinit VF resources */ + i40e_vc_reset_vf(vf, true); i40e_set_vf_link_state(vf, &pfe, ls); break; case IFLA_VF_LINK_STATE_ENABLE: vf->link_forced = true; vf->link_up = true; + vf->is_disabled_from_host = false; + /* reset needed to reinit VF resources */ + i40e_vc_reset_vf(vf, true); i40e_set_vf_link_state(vf, &pfe, ls); break; case IFLA_VF_LINK_STATE_DISABLE: vf->link_forced = true; vf->link_up = false; i40e_set_vf_link_state(vf, &pfe, ls); + + vsi = pf->vsi[vf->lan_vsi_idx]; + q_map = BIT(vsi->num_queue_pairs) - 1; + + vf->is_disabled_from_host = true; + + /* Try to stop both Tx&Rx rings even if one of the calls fails + * to ensure we stop the rings even in case of errors. + * If any of them returns with an error then the first + * error that occurred will be returned. + */ + tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false); + ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false); + + ret = tmp ? tmp : ret; break; default: ret = -EINVAL; diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h index bda9ba668c41..cf190762421c 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h @@ -98,6 +98,7 @@ struct i40e_vf { bool link_forced; bool link_up; /* only valid if VF link is forced */ bool spoofchk; + bool is_disabled_from_host; /* PF ctrl of VF enable/disable */ u16 num_vlan; /* ADq related variables */ |