From 42f3efef3554ea141f14234bf80d287ccb9f5a5e Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:24 -0800 Subject: [PATCH 01/15] ice: Add initial support for QinQ Allow support for S-Tag + C-Tag VLAN traffic by disabling pruning when there are no 0x8100 VLAN interfaces currently created on top of the PF. When an 0x8100 VLAN interface is configured, enable pruning and only support single and double C-Tag VLAN traffic. If all of the 0x8100 interfaces that were created on top of the PF are removed via ethtool -K rx-vlan-filter off or via ip tools, then disable pruning and allow S-Tag + C-Tag traffic again. Add VLAN 0 filter by default for the PF. This is because a bridge sets the default_pvid to 1, sends the request down to ice_vlan_rx_add_vid(), and we never get the request to add VLAN 0 via the 8021q module which causes all untagged traffic to be dropped. Signed-off-by: Brett Creeley Signed-off-by: Tony Nguyen Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_lib.c | 43 +++++++++++++++++-- drivers/net/ethernet/intel/ice/ice_lib.h | 2 + drivers/net/ethernet/intel/ice/ice_main.c | 21 ++++++--- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 14 +++--- 4 files changed, 63 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index d974e2fa3e63..263d25630072 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1348,7 +1348,9 @@ int ice_vsi_add_vlan(struct ice_vsi *vsi, u16 vid) list_add(&tmp->list_entry, &tmp_add_list); status = ice_add_vlan(&pf->hw, &tmp_add_list); - if (status) { + if (!status) { + vsi->num_vlan++; + } else { err = -ENODEV; dev_err(dev, "Failure Adding VLAN %d on VSI %i\n", vid, vsi->vsi_num); @@ -1390,10 +1392,12 @@ int ice_vsi_kill_vlan(struct ice_vsi *vsi, u16 vid) list_add(&list->list_entry, &tmp_add_list); status = ice_remove_vlan(&pf->hw, &tmp_add_list); - if (status == ICE_ERR_DOES_NOT_EXIST) { + if (!status) { + vsi->num_vlan--; + } else if (status == ICE_ERR_DOES_NOT_EXIST) { dev_dbg(dev, "Failed to remove VLAN %d on VSI %i, it does not exist, status: %d\n", vid, vsi->vsi_num, status); - } else if (status) { + } else { dev_err(dev, "Error removing VLAN %d on vsi %i error: %d\n", vid, vsi->vsi_num, status); err = -EIO; @@ -1755,6 +1759,26 @@ int ice_vsi_stop_xdp_tx_rings(struct ice_vsi *vsi) return ice_vsi_stop_tx_rings(vsi, ICE_NO_RESET, 0, vsi->xdp_rings); } +/** + * ice_vsi_is_vlan_pruning_ena - check if VLAN pruning is enabled or not + * @vsi: VSI to check whether or not VLAN pruning is enabled. + * + * returns true if Rx VLAN pruning and Tx VLAN anti-spoof is enabled and false + * otherwise. + */ +bool ice_vsi_is_vlan_pruning_ena(struct ice_vsi *vsi) +{ + u8 rx_pruning = ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; + u8 tx_pruning = ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << + ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S; + + if (!vsi) + return false; + + return ((vsi->info.sw_flags2 & rx_pruning) && + (vsi->info.sec_flags & tx_pruning)); +} + /** * ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI * @vsi: VSI to enable or disable VLAN pruning on @@ -2025,6 +2049,17 @@ ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, if (ret) goto unroll_vector_base; + /* Always add VLAN ID 0 switch rule by default. This is needed + * in order to allow all untagged and 0 tagged priority traffic + * if Rx VLAN pruning is enabled. Also there are cases where we + * don't get the call to add VLAN 0 via ice_vlan_rx_add_vid() + * so this handles those cases (i.e. adding the PF to a bridge + * without the 8021q module loaded). + */ + ret = ice_vsi_add_vlan(vsi, 0); + if (ret) + goto unroll_clear_rings; + ice_vsi_map_rings_to_vectors(vsi); /* Do not exit if configuring RSS had an issue, at least @@ -2104,6 +2139,8 @@ ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, return vsi; +unroll_clear_rings: + ice_vsi_clear_rings(vsi); unroll_vector_base: /* reclaim SW interrupts back to the common pool */ ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx); diff --git a/drivers/net/ethernet/intel/ice/ice_lib.h b/drivers/net/ethernet/intel/ice/ice_lib.h index e2c0dadce920..3c87e6b509ed 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_lib.h @@ -42,6 +42,8 @@ int ice_vsi_cfg_xdp_txqs(struct ice_vsi *vsi); int ice_vsi_stop_xdp_tx_rings(struct ice_vsi *vsi); +bool ice_vsi_is_vlan_pruning_ena(struct ice_vsi *vsi); + int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena, bool vlan_promisc); void ice_cfg_sw_lldp(struct ice_vsi *vsi, bool tx, bool create); diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 5ef28052c0f8..bd6e84f51fd4 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2461,16 +2461,19 @@ ice_vlan_rx_add_vid(struct net_device *netdev, __always_unused __be16 proto, if (vsi->info.pvid) return -EINVAL; - /* Enable VLAN pruning when VLAN 0 is added */ - if (unlikely(!vid)) { + /* VLAN 0 is added by default during load/reset */ + if (!vid) + return 0; + + /* Enable VLAN pruning when a VLAN other than 0 is added */ + if (!ice_vsi_is_vlan_pruning_ena(vsi)) { ret = ice_cfg_vlan_pruning(vsi, true, false); if (ret) return ret; } - /* Add all VLAN IDs including 0 to the switch filter. VLAN ID 0 is - * needed to continue allowing all untagged packets since VLAN prune - * list is applied to all packets by the switch + /* Add a switch rule for this VLAN ID so its corresponding VLAN tagged + * packets aren't pruned by the device's internal switch on Rx */ ret = ice_vsi_add_vlan(vsi, vid); if (!ret) { @@ -2500,6 +2503,10 @@ ice_vlan_rx_kill_vid(struct net_device *netdev, __always_unused __be16 proto, if (vsi->info.pvid) return -EINVAL; + /* don't allow removal of VLAN 0 */ + if (!vid) + return 0; + /* Make sure ice_vsi_kill_vlan is successful before updating VLAN * information */ @@ -2507,8 +2514,8 @@ ice_vlan_rx_kill_vid(struct net_device *netdev, __always_unused __be16 proto, if (ret) return ret; - /* Disable VLAN pruning when VLAN 0 is removed */ - if (unlikely(!vid)) + /* Disable pruning when VLAN 0 is the only VLAN rule */ + if (vsi->num_vlan == 1 && ice_vsi_is_vlan_pruning_ena(vsi)) ret = ice_cfg_vlan_pruning(vsi, false, false); vsi->vlan_ena = false; diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 262714d5f54a..a8178a73ccd1 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -2868,9 +2868,9 @@ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v) goto error_param; } - vsi->num_vlan++; - /* Enable VLAN pruning when VLAN is added */ - if (!vlan_promisc) { + /* Enable VLAN pruning when non-zero VLAN is added */ + if (!vlan_promisc && vid && + !ice_vsi_is_vlan_pruning_ena(vsi)) { status = ice_cfg_vlan_pruning(vsi, true, false); if (status) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; @@ -2878,7 +2878,7 @@ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v) vid, status); goto error_param; } - } else { + } else if (vlan_promisc) { /* Enable Ucast/Mcast VLAN promiscuous mode */ promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX; @@ -2922,9 +2922,9 @@ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v) goto error_param; } - vsi->num_vlan--; - /* Disable VLAN pruning when the last VLAN is removed */ - if (!vsi->num_vlan) + /* Disable VLAN pruning when only VLAN 0 is left */ + if (vsi->num_vlan == 1 && + ice_vsi_is_vlan_pruning_ena(vsi)) ice_cfg_vlan_pruning(vsi, false, false); /* Disable Unicast/Multicast VLAN promiscuous mode */ From b093841f9ac916ce233cb59c74bf4a70a2febb2c Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:25 -0800 Subject: [PATCH 02/15] ice: Refactor port vlan configuration for the VF Currently ice_vsi_manage_pvid() calls ice_vsi_[set|kill]_pvid_fill_ctxt() when enabling/disabling a port VLAN on a VSI respectively. These two functions have some duplication so just move their unique pieces inline in ice_vsi_manage_pvid() and then the duplicate code can be reused for both the enabling/disabling paths. Before this patch the info.pvid field was not being written correctly via ice_vsi_kill_pvid_fill_ctxt() so it was being hard coded to 0 in ice_set_vf_port_vlan(). Fix this by setting the info.pvid field to 0 before calling ice_vsi_update() in ice_vsi_manage_pvid(). We currently use vf->port_vlan_id to keep track of the port VLAN ID and QoS, which is a bit misleading. Fix this by renaming it to vf->port_vlan_info. Also change the name of the argument for ice_vsi_manage_pvid() from vid to pvid_info. In ice_vsi_manage_pvid() only save the fields that were modified in the VSI properties structure on success instead of the entire thing. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 86 ++++++++----------- .../net/ethernet/intel/ice/ice_virtchnl_pf.h | 2 +- 2 files changed, 37 insertions(+), 51 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index a8178a73ccd1..82319597c48c 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -406,44 +406,16 @@ static void ice_trigger_vf_reset(struct ice_vf *vf, bool is_vflr, bool is_pfr) } } -/** - * ice_vsi_set_pvid_fill_ctxt - Set VSI ctxt for add PVID - * @ctxt: the VSI ctxt to fill - * @vid: the VLAN ID to set as a PVID - */ -static void ice_vsi_set_pvid_fill_ctxt(struct ice_vsi_ctx *ctxt, u16 vid) -{ - ctxt->info.vlan_flags = (ICE_AQ_VSI_VLAN_MODE_UNTAGGED | - ICE_AQ_VSI_PVLAN_INSERT_PVID | - ICE_AQ_VSI_VLAN_EMOD_STR); - ctxt->info.pvid = cpu_to_le16(vid); - ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; - ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID | - ICE_AQ_VSI_PROP_SW_VALID); -} - -/** - * ice_vsi_kill_pvid_fill_ctxt - Set VSI ctx for remove PVID - * @ctxt: the VSI ctxt to fill - */ -static void ice_vsi_kill_pvid_fill_ctxt(struct ice_vsi_ctx *ctxt) -{ - ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING; - ctxt->info.vlan_flags |= ICE_AQ_VSI_VLAN_MODE_ALL; - ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; - ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID | - ICE_AQ_VSI_PROP_SW_VALID); -} - /** * ice_vsi_manage_pvid - Enable or disable port VLAN for VSI * @vsi: the VSI to update - * @vid: the VLAN ID to set as a PVID + * @pvid_info: VLAN ID and QoS used to set the PVID VSI context field * @enable: true for enable PVID false for disable */ -static int ice_vsi_manage_pvid(struct ice_vsi *vsi, u16 vid, bool enable) +static int ice_vsi_manage_pvid(struct ice_vsi *vsi, u16 pvid_info, bool enable) { struct ice_hw *hw = &vsi->back->hw; + struct ice_aqc_vsi_props *info; struct ice_vsi_ctx *ctxt; enum ice_status status; int ret = 0; @@ -453,20 +425,33 @@ static int ice_vsi_manage_pvid(struct ice_vsi *vsi, u16 vid, bool enable) return -ENOMEM; ctxt->info = vsi->info; - if (enable) - ice_vsi_set_pvid_fill_ctxt(ctxt, vid); - else - ice_vsi_kill_pvid_fill_ctxt(ctxt); + info = &ctxt->info; + if (enable) { + info->vlan_flags = ICE_AQ_VSI_VLAN_MODE_UNTAGGED | + ICE_AQ_VSI_PVLAN_INSERT_PVID | + ICE_AQ_VSI_VLAN_EMOD_STR; + info->sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; + } else { + info->vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING | + ICE_AQ_VSI_VLAN_MODE_ALL; + info->sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; + } + + info->pvid = cpu_to_le16(pvid_info); + info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID | + ICE_AQ_VSI_PROP_SW_VALID); status = ice_update_vsi(hw, vsi->idx, ctxt, NULL); if (status) { - dev_info(ice_pf_to_dev(vsi->back), "update VSI for port VLAN failed, err %d aq_err %d\n", + dev_info(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %d\n", status, hw->adminq.sq_last_status); ret = -EIO; goto out; } - vsi->info = ctxt->info; + vsi->info.vlan_flags = info->vlan_flags; + vsi->info.sw_flags2 = info->sw_flags2; + vsi->info.pvid = info->pvid; out: kfree(ctxt); return ret; @@ -533,9 +518,9 @@ static int ice_alloc_vsi_res(struct ice_vf *vf) vf->lan_vsi_num = vsi->vsi_num; /* Check if port VLAN exist before, and restore it accordingly */ - if (vf->port_vlan_id) { - ice_vsi_manage_pvid(vsi, vf->port_vlan_id, true); - ice_vsi_add_vlan(vsi, vf->port_vlan_id & ICE_VLAN_M); + if (vf->port_vlan_info) { + ice_vsi_manage_pvid(vsi, vf->port_vlan_info, true); + ice_vsi_add_vlan(vsi, vf->port_vlan_info & ICE_VLAN_M); } eth_broadcast_addr(broadcast); @@ -985,13 +970,13 @@ ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m, if (vsi->num_vlan) { status = ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_m, rm_promisc); - } else if (vf->port_vlan_id) { + } else if (vf->port_vlan_info) { if (rm_promisc) status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m, - vf->port_vlan_id); + vf->port_vlan_info); else status = ice_set_vsi_promisc(hw, vsi->idx, promisc_m, - vf->port_vlan_id); + vf->port_vlan_info); } else { if (rm_promisc) status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m, @@ -1231,7 +1216,7 @@ static bool ice_reset_vf(struct ice_vf *vf, bool is_vflr) */ if (test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) || test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) { - if (vf->port_vlan_id || vsi->num_vlan) + if (vf->port_vlan_info || vsi->num_vlan) promisc_m = ICE_UCAST_VLAN_PROMISC_BITS; else promisc_m = ICE_UCAST_PROMISC_BITS; @@ -2731,10 +2716,11 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, if (vlan_id || qos) { ret = ice_vsi_manage_pvid(vsi, vlanprio, true); if (ret) - goto error_set_pvid; + goto error_manage_pvid; } else { - ice_vsi_manage_pvid(vsi, 0, false); - vsi->info.pvid = 0; + ret = ice_vsi_manage_pvid(vsi, 0, false); + if (ret) + goto error_manage_pvid; } if (vlan_id) { @@ -2744,15 +2730,15 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, /* add new VLAN filter for each MAC */ ret = ice_vsi_add_vlan(vsi, vlan_id); if (ret) - goto error_set_pvid; + goto error_manage_pvid; } /* The Port VLAN needs to be saved across resets the same as the * default LAN MAC address. */ - vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); + vf->port_vlan_info = le16_to_cpu(vsi->info.pvid); -error_set_pvid: +error_manage_pvid: return ret; } diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h index 4647d636ed36..80bb1acc7c28 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h @@ -74,7 +74,7 @@ struct ice_vf { struct virtchnl_ether_addr dflt_lan_addr; DECLARE_BITMAP(txq_ena, ICE_MAX_BASE_QS_PER_VF); DECLARE_BITMAP(rxq_ena, ICE_MAX_BASE_QS_PER_VF); - u16 port_vlan_id; + u16 port_vlan_info; /* Port VLAN ID and QoS */ u8 pf_set_mac:1; /* VF MAC address set by VMM admin */ u8 trusted:1; u8 spoofchk:1; From 0b6c6a8bb6d541aad9e0f3bb2307316707aec723 Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:26 -0800 Subject: [PATCH 03/15] ice: Add helper to determine if VF link is up The check for vf->link_up is incorrect because this field is only valid if vf->link_forced is true. Fix this by adding the helper ice_is_vf_link_up() to determine if the VF's link is up. Signed-off-by: Brett Creeley Signed-off-by: Tony Nguyen Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 42 +++++++++++-------- 1 file changed, 25 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 82319597c48c..62ef3be4b184 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -90,6 +90,26 @@ ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe, } } +/** + * ice_is_vf_link_up - check if the VF's link is up + * @vf: VF to check if link is up + */ +static bool ice_is_vf_link_up(struct ice_vf *vf) +{ + struct ice_pf *pf = vf->pf; + + if (ice_check_vf_init(pf, vf)) + return false; + + if (!vf->num_qs_ena) + return false; + else if (vf->link_forced) + return vf->link_up; + else + return pf->hw.port_info->phy.link_info.link_info & + ICE_AQ_LINK_UP; +} + /** * ice_vc_notify_vf_link_state - Inform a VF of link status * @vf: pointer to the VF structure @@ -99,28 +119,16 @@ ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe, static void ice_vc_notify_vf_link_state(struct ice_vf *vf) { struct virtchnl_pf_event pfe = { 0 }; - struct ice_link_status *ls; - struct ice_pf *pf = vf->pf; - struct ice_hw *hw; - - hw = &pf->hw; - ls = &hw->port_info->phy.link_info; + struct ice_hw *hw = &vf->pf->hw; pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = PF_EVENT_SEVERITY_INFO; - /* Always report link is down if the VF queues aren't enabled */ - if (!vf->num_qs_ena) { + if (ice_is_vf_link_up(vf)) + ice_set_pfe_link(vf, &pfe, + hw->port_info->phy.link_info.link_speed, true); + else ice_set_pfe_link(vf, &pfe, ICE_AQ_LINK_SPEED_UNKNOWN, false); - } else if (vf->link_forced) { - u16 link_speed = vf->link_up ? - ls->link_speed : ICE_AQ_LINK_SPEED_UNKNOWN; - - ice_set_pfe_link(vf, &pfe, link_speed, vf->link_up); - } else { - ice_set_pfe_link(vf, &pfe, ls->link_speed, - ls->link_info & ICE_AQ_LINK_UP); - } ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe, From 61c9ce86a6f5c3c2eb1dad89da0c758f586ffc3f Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:27 -0800 Subject: [PATCH 04/15] ice: Fix Port VLAN priority bits Currently when configuring a port VLAN for a VF we are only shifting the QoS bits by 12. This is incorrect. Fix this by getting rid of the ICE specific VLAN defines and use the kernel VLAN defines instead. Also, don't assign a value to vlanprio until the VLAN ID and QoS parameters have been validated. Also, there are many places we do (le16_to_cpu(vsi->info.pvid) & VLAN_VID_MASK). Instead do (vf->port_vlan_info & VLAN_VID_MASK) because we always save what's stored in vsi->info.pvid to vf->port_vlan_info in the CPU's endianness. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 27 +++++++++---------- .../net/ethernet/intel/ice/ice_virtchnl_pf.h | 5 ---- 2 files changed, 13 insertions(+), 19 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 62ef3be4b184..17bb79f0a30b 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -528,7 +528,7 @@ static int ice_alloc_vsi_res(struct ice_vf *vf) /* Check if port VLAN exist before, and restore it accordingly */ if (vf->port_vlan_info) { ice_vsi_manage_pvid(vsi, vf->port_vlan_info, true); - ice_vsi_add_vlan(vsi, vf->port_vlan_info & ICE_VLAN_M); + ice_vsi_add_vlan(vsi, vf->port_vlan_info & VLAN_VID_MASK); } eth_broadcast_addr(broadcast); @@ -2684,19 +2684,20 @@ int ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, __be16 vlan_proto) { - u16 vlanprio = vlan_id | (qos << ICE_VLAN_PRIORITY_S); struct ice_pf *pf = ice_netdev_to_pf(netdev); struct ice_vsi *vsi; struct device *dev; struct ice_vf *vf; + u16 vlanprio; int ret = 0; dev = ice_pf_to_dev(pf); if (ice_validate_vf_id(pf, vf_id)) return -EINVAL; - if (vlan_id > ICE_MAX_VLANID || qos > 7) { - dev_err(dev, "Invalid VF Parameters\n"); + if (vlan_id >= VLAN_N_VID || qos > 7) { + dev_err(dev, "Invalid Port VLAN parameters for VF %d, ID %d, QoS %d\n", + vf_id, vlan_id, qos); return -EINVAL; } @@ -2710,16 +2711,17 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, if (ice_check_vf_init(pf, vf)) return -EBUSY; - if (le16_to_cpu(vsi->info.pvid) == vlanprio) { + vlanprio = vlan_id | (qos << VLAN_PRIO_SHIFT); + + if (vf->port_vlan_info == vlanprio) { /* duplicate request, so just return success */ dev_dbg(dev, "Duplicate pvid %d request\n", vlanprio); return ret; } /* If PVID, then remove all filters on the old VLAN */ - if (vsi->info.pvid) - ice_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) & - VLAN_VID_MASK)); + if (vf->port_vlan_info) + ice_vsi_kill_vlan(vsi, vf->port_vlan_info & VLAN_VID_MASK); if (vlan_id || qos) { ret = ice_vsi_manage_pvid(vsi, vlanprio, true); @@ -2800,7 +2802,7 @@ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v) } for (i = 0; i < vfl->num_elements; i++) { - if (vfl->vlan_id[i] > ICE_MAX_VLANID) { + if (vfl->vlan_id[i] >= VLAN_N_VID) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "invalid VF VLAN id %d\n", vfl->vlan_id[i]); @@ -3197,14 +3199,12 @@ int ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi) { struct ice_pf *pf = ice_netdev_to_pf(netdev); - struct ice_vsi *vsi; struct ice_vf *vf; if (ice_validate_vf_id(pf, vf_id)) return -EINVAL; vf = &pf->vf[vf_id]; - vsi = pf->vsi[vf->lan_vsi_idx]; if (ice_check_vf_init(pf, vf)) return -EBUSY; @@ -3213,9 +3213,8 @@ ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi) ether_addr_copy(ivi->mac, vf->dflt_lan_addr.addr); /* VF configuration for VLAN and applicable QoS */ - ivi->vlan = le16_to_cpu(vsi->info.pvid) & ICE_VLAN_M; - ivi->qos = (le16_to_cpu(vsi->info.pvid) & ICE_PRIORITY_M) >> - ICE_VLAN_PRIORITY_S; + ivi->vlan = vf->port_vlan_info & VLAN_VID_MASK; + ivi->qos = (vf->port_vlan_info & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; ivi->trusted = vf->trusted; ivi->spoofchk = vf->spoofchk; diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h index 80bb1acc7c28..a1bb196d417a 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h @@ -5,11 +5,6 @@ #define _ICE_VIRTCHNL_PF_H_ #include "ice.h" -#define ICE_MAX_VLANID 4095 -#define ICE_VLAN_PRIORITY_S 12 -#define ICE_VLAN_M 0xFFF -#define ICE_PRIORITY_M 0x7000 - /* Restrict number of MAC Addr and VLAN that non-trusted VF can programmed */ #define ICE_MAX_VLAN_PER_VF 8 #define ICE_MAX_MACADDR_PER_VF 12 From 72634bc228cb0a66f2b11c2f7addac5018fd27a1 Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:28 -0800 Subject: [PATCH 05/15] ice: Only allow tagged bcast/mcast traffic for VF in port VLAN Currently the VF can see other's broadcast and multicast traffic because it always has a VLAN filter for VLAN 0. Fix this by removing/adding the VF's VLAN 0 filter when a port VLAN is added/removed respectively. This required a few changes. 1. Move where we add VLAN 0 by default for the VF into ice_alloc_vsi_res() because this is when we determine if a port VLAN is present for load and reset. 2. Moved where we kill the old port VLAN filter in ice_set_vf_port_vlan() to the very end of the function because it allows us to save the old port VLAN configuration upon any failure case. 3. During adding/removing of a port VLAN via ice_set_vf_port_vlan() we also need to remove/add the VLAN 0 filter rule respectively. 4. Improve log messages. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 49 ++++++++++++------- 1 file changed, 31 insertions(+), 18 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 17bb79f0a30b..19c576625762 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -528,7 +528,18 @@ static int ice_alloc_vsi_res(struct ice_vf *vf) /* Check if port VLAN exist before, and restore it accordingly */ if (vf->port_vlan_info) { ice_vsi_manage_pvid(vsi, vf->port_vlan_info, true); - ice_vsi_add_vlan(vsi, vf->port_vlan_info & VLAN_VID_MASK); + if (ice_vsi_add_vlan(vsi, vf->port_vlan_info & VLAN_VID_MASK)) + dev_warn(ice_pf_to_dev(pf), "Failed to add Port VLAN %d filter for VF %d\n", + vf->port_vlan_info & VLAN_VID_MASK, vf->vf_id); + } else { + /* set VLAN 0 filter by default when no port VLAN is + * enabled. If a port VLAN is enabled we don't want + * untagged broadcast/multicast traffic seen on the VF + * interface. + */ + if (ice_vsi_add_vlan(vsi, 0)) + dev_warn(ice_pf_to_dev(pf), "Failed to add VLAN 0 filter for VF %d, MDD events will trigger. Reset the VF, disable spoofchk, or enable 8021q module on the guest\n", + vf->vf_id); } eth_broadcast_addr(broadcast); @@ -936,17 +947,9 @@ static void ice_cleanup_and_realloc_vf(struct ice_vf *vf) /* reallocate VF resources to finish resetting the VSI state */ if (!ice_alloc_vf_res(vf)) { - struct ice_vsi *vsi; - ice_ena_vf_mappings(vf); set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states); clear_bit(ICE_VF_STATE_DIS, vf->vf_states); - - vsi = pf->vsi[vf->lan_vsi_idx]; - if (ice_vsi_add_vlan(vsi, 0)) - dev_warn(ice_pf_to_dev(pf), - "Failed to add VLAN 0 filter for VF %d, MDD events will trigger. Reset the VF, disable spoofchk, or enable 8021q module on the guest", - vf->vf_id); } /* Tell the VF driver the reset is done. This needs to be done only @@ -2719,15 +2722,24 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, return ret; } - /* If PVID, then remove all filters on the old VLAN */ - if (vf->port_vlan_info) - ice_vsi_kill_vlan(vsi, vf->port_vlan_info & VLAN_VID_MASK); - if (vlan_id || qos) { + /* remove VLAN 0 filter set by default when transitioning from + * no port VLAN to a port VLAN. No change to old port VLAN on + * failure. + */ + ret = ice_vsi_kill_vlan(vsi, 0); + if (ret) + return ret; ret = ice_vsi_manage_pvid(vsi, vlanprio, true); if (ret) - goto error_manage_pvid; + return ret; } else { + /* add VLAN 0 filter back when transitioning from port VLAN to + * no port VLAN. No change to old port VLAN on failure. + */ + ret = ice_vsi_add_vlan(vsi, 0); + if (ret) + return ret; ret = ice_vsi_manage_pvid(vsi, 0, false); if (ret) goto error_manage_pvid; @@ -2737,15 +2749,16 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, dev_info(dev, "Setting VLAN %d, QoS 0x%x on VF %d\n", vlan_id, qos, vf_id); - /* add new VLAN filter for each MAC */ + /* add VLAN filter for the port VLAN */ ret = ice_vsi_add_vlan(vsi, vlan_id); if (ret) goto error_manage_pvid; } + /* remove old port VLAN filter with valid VLAN ID or QoS fields */ + if (vf->port_vlan_info) + ice_vsi_kill_vlan(vsi, vf->port_vlan_info & VLAN_VID_MASK); - /* The Port VLAN needs to be saved across resets the same as the - * default LAN MAC address. - */ + /* keep port VLAN information persistent on resets */ vf->port_vlan_info = le16_to_cpu(vsi->info.pvid); error_manage_pvid: From 13a6233b033f8816a3643f1f47d44e4cfd6c5384 Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:29 -0800 Subject: [PATCH 06/15] ice: Add support to enable/disable all Rx queues before waiting Currently when we enable/disable all Rx queues we do the following sequence for each Rx queue and then move to the next queue. 1. Enable/Disable the Rx queue via register write. 2. Read the configuration register to determine if the Rx queue was enabled/disabled successfully. In some cases enabling/disabling queue 0 fails because of step 2 above. Fix this by doing step 1 for all of the Rx queues and then step 2 for all of the Rx queues. Also, there are cases where we enable/disable a single queue (i.e. SR-IOV and XDP) so add a new function that does step 1 and 2 above with a read flush in between. This change also required a single Rx queue to be enabled/disabled with and without waiting for the change to propagate through hardware. Fix this by adding a boolean wait flag to the necessary functions. Also, add the keywords "one" and "all" to distinguish between enabling/disabling a single Rx queue and all Rx queues respectively. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_base.c | 42 ++++++++++++++----- drivers/net/ethernet/intel/ice/ice_base.h | 4 +- drivers/net/ethernet/intel/ice/ice_ethtool.c | 4 +- drivers/net/ethernet/intel/ice/ice_lib.c | 32 +++++++++----- drivers/net/ethernet/intel/ice/ice_lib.h | 4 +- drivers/net/ethernet/intel/ice/ice_main.c | 4 +- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 7 ++-- drivers/net/ethernet/intel/ice/ice_xsk.c | 4 +- 8 files changed, 67 insertions(+), 34 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c index 81885efadc7a..1c41e7e6d548 100644 --- a/drivers/net/ethernet/intel/ice/ice_base.c +++ b/drivers/net/ethernet/intel/ice/ice_base.c @@ -459,17 +459,20 @@ int __ice_vsi_get_qs(struct ice_qs_cfg *qs_cfg) } /** - * ice_vsi_ctrl_rx_ring - Start or stop a VSI's Rx ring + * ice_vsi_ctrl_one_rx_ring - start/stop VSI's Rx ring with no busy wait * @vsi: the VSI being configured - * @ena: start or stop the Rx rings - * @rxq_idx: Rx queue index + * @ena: start or stop the Rx ring + * @rxq_idx: 0-based Rx queue index for the VSI passed in + * @wait: wait or don't wait for configuration to finish in hardware + * + * Return 0 on success and negative on error. */ -int ice_vsi_ctrl_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx) +int +ice_vsi_ctrl_one_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx, bool wait) { int pf_q = vsi->rxq_map[rxq_idx]; struct ice_pf *pf = vsi->back; struct ice_hw *hw = &pf->hw; - int ret = 0; u32 rx_reg; rx_reg = rd32(hw, QRX_CTRL(pf_q)); @@ -485,13 +488,30 @@ int ice_vsi_ctrl_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx) rx_reg &= ~QRX_CTRL_QENA_REQ_M; wr32(hw, QRX_CTRL(pf_q), rx_reg); - /* wait for the change to finish */ - ret = ice_pf_rxq_wait(pf, pf_q, ena); - if (ret) - dev_err(ice_pf_to_dev(pf), "VSI idx %d Rx ring %d %sable timeout\n", - vsi->idx, pf_q, (ena ? "en" : "dis")); + if (!wait) + return 0; - return ret; + ice_flush(hw); + return ice_pf_rxq_wait(pf, pf_q, ena); +} + +/** + * ice_vsi_wait_one_rx_ring - wait for a VSI's Rx ring to be stopped/started + * @vsi: the VSI being configured + * @ena: true/false to verify Rx ring has been enabled/disabled respectively + * @rxq_idx: 0-based Rx queue index for the VSI passed in + * + * This routine will wait for the given Rx queue of the VSI to reach the + * enabled or disabled state. Returns -ETIMEDOUT in case of failing to reach + * the requested state after multiple retries; else will return 0 in case of + * success. + */ +int ice_vsi_wait_one_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx) +{ + int pf_q = vsi->rxq_map[rxq_idx]; + struct ice_pf *pf = vsi->back; + + return ice_pf_rxq_wait(pf, pf_q, ena); } /** diff --git a/drivers/net/ethernet/intel/ice/ice_base.h b/drivers/net/ethernet/intel/ice/ice_base.h index 407995e8e944..44efdb627043 100644 --- a/drivers/net/ethernet/intel/ice/ice_base.h +++ b/drivers/net/ethernet/intel/ice/ice_base.h @@ -8,7 +8,9 @@ int ice_setup_rx_ctx(struct ice_ring *ring); int __ice_vsi_get_qs(struct ice_qs_cfg *qs_cfg); -int ice_vsi_ctrl_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx); +int +ice_vsi_ctrl_one_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx, bool wait); +int ice_vsi_wait_one_rx_ring(struct ice_vsi *vsi, bool ena, u16 rxq_idx); int ice_vsi_alloc_q_vectors(struct ice_vsi *vsi); void ice_vsi_map_rings_to_vectors(struct ice_vsi *vsi); void ice_vsi_free_q_vectors(struct ice_vsi *vsi); diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index b002ab4e5838..c02af503764e 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -462,7 +462,7 @@ static int ice_lbtest_prepare_rings(struct ice_vsi *vsi) if (status) goto err_setup_rx_ring; - status = ice_vsi_start_rx_rings(vsi); + status = ice_vsi_start_all_rx_rings(vsi); if (status) goto err_start_rx_ring; @@ -494,7 +494,7 @@ static int ice_lbtest_disable_rings(struct ice_vsi *vsi) netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n", vsi->vsi_num, status); - status = ice_vsi_stop_rx_rings(vsi); + status = ice_vsi_stop_all_rx_rings(vsi); if (status) netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n", vsi->vsi_num, status); diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 263d25630072..8bb8f8c73f3d 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -26,16 +26,26 @@ const char *ice_vsi_type_str(enum ice_vsi_type type) } /** - * ice_vsi_ctrl_rx_rings - Start or stop a VSI's Rx rings + * ice_vsi_ctrl_all_rx_rings - Start or stop a VSI's Rx rings * @vsi: the VSI being configured * @ena: start or stop the Rx rings + * + * First enable/disable all of the Rx rings, flush any remaining writes, and + * then verify that they have all been enabled/disabled successfully. This will + * let all of the register writes complete when enabling/disabling the Rx rings + * before waiting for the change in hardware to complete. */ -static int ice_vsi_ctrl_rx_rings(struct ice_vsi *vsi, bool ena) +static int ice_vsi_ctrl_all_rx_rings(struct ice_vsi *vsi, bool ena) { int i, ret = 0; + for (i = 0; i < vsi->num_rxq; i++) + ice_vsi_ctrl_one_rx_ring(vsi, ena, i, false); + + ice_flush(&vsi->back->hw); + for (i = 0; i < vsi->num_rxq; i++) { - ret = ice_vsi_ctrl_rx_ring(vsi, ena, i); + ret = ice_vsi_wait_one_rx_ring(vsi, ena, i); if (ret) break; } @@ -1682,25 +1692,25 @@ int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena) } /** - * ice_vsi_start_rx_rings - start VSI's Rx rings - * @vsi: the VSI whose rings are to be started + * ice_vsi_start_all_rx_rings - start/enable all of a VSI's Rx rings + * @vsi: the VSI whose rings are to be enabled * * Returns 0 on success and a negative value on error */ -int ice_vsi_start_rx_rings(struct ice_vsi *vsi) +int ice_vsi_start_all_rx_rings(struct ice_vsi *vsi) { - return ice_vsi_ctrl_rx_rings(vsi, true); + return ice_vsi_ctrl_all_rx_rings(vsi, true); } /** - * ice_vsi_stop_rx_rings - stop VSI's Rx rings - * @vsi: the VSI + * ice_vsi_stop_all_rx_rings - stop/disable all of a VSI's Rx rings + * @vsi: the VSI whose rings are to be disabled * * Returns 0 on success and a negative value on error */ -int ice_vsi_stop_rx_rings(struct ice_vsi *vsi) +int ice_vsi_stop_all_rx_rings(struct ice_vsi *vsi) { - return ice_vsi_ctrl_rx_rings(vsi, false); + return ice_vsi_ctrl_all_rx_rings(vsi, false); } /** diff --git a/drivers/net/ethernet/intel/ice/ice_lib.h b/drivers/net/ethernet/intel/ice/ice_lib.h index 3c87e6b509ed..585f1350403f 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_lib.h @@ -30,9 +30,9 @@ int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi); int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena); -int ice_vsi_start_rx_rings(struct ice_vsi *vsi); +int ice_vsi_start_all_rx_rings(struct ice_vsi *vsi); -int ice_vsi_stop_rx_rings(struct ice_vsi *vsi); +int ice_vsi_stop_all_rx_rings(struct ice_vsi *vsi); int ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index bd6e84f51fd4..ced070427fd7 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -3968,7 +3968,7 @@ static int ice_up_complete(struct ice_vsi *vsi) * Tx queue group list was configured and the context bits were * programmed using ice_vsi_cfg_txqs */ - err = ice_vsi_start_rx_rings(vsi); + err = ice_vsi_start_all_rx_rings(vsi); if (err) return err; @@ -4347,7 +4347,7 @@ int ice_down(struct ice_vsi *vsi) vsi->vsi_num, tx_err); } - rx_err = ice_vsi_stop_rx_rings(vsi); + rx_err = ice_vsi_stop_all_rx_rings(vsi); if (rx_err) netdev_err(vsi->netdev, "Failed stop Rx rings, VSI %d error %d\n", vsi->vsi_num, rx_err); diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 19c576625762..3666647da096 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -271,7 +271,7 @@ static void ice_dis_vf_qs(struct ice_vf *vf) vsi = pf->vsi[vf->lan_vsi_idx]; ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, vf->vf_id); - ice_vsi_stop_rx_rings(vsi); + ice_vsi_stop_all_rx_rings(vsi); ice_set_vf_state_qs_dis(vf); } @@ -2051,7 +2051,7 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg) if (test_bit(vf_q_id, vf->rxq_ena)) continue; - if (ice_vsi_ctrl_rx_ring(vsi, true, vf_q_id)) { + if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) { dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n", vf_q_id, vsi->vsi_num); v_ret = VIRTCHNL_STATUS_ERR_PARAM; @@ -2179,7 +2179,8 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg) if (!test_bit(vf_q_id, vf->rxq_ena)) continue; - if (ice_vsi_ctrl_rx_ring(vsi, false, vf_q_id)) { + if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id, + true)) { dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n", vf_q_id, vsi->vsi_num); v_ret = VIRTCHNL_STATUS_ERR_PARAM; diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 4d3407bbd4c4..fd96301e59bb 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -183,7 +183,7 @@ static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx) if (err) return err; } - err = ice_vsi_ctrl_rx_ring(vsi, false, q_idx); + err = ice_vsi_ctrl_one_rx_ring(vsi, false, q_idx, true); if (err) return err; @@ -243,7 +243,7 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx) ice_qvec_cfg_msix(vsi, q_vector); - err = ice_vsi_ctrl_rx_ring(vsi, true, q_idx); + err = ice_vsi_ctrl_one_rx_ring(vsi, true, q_idx, true); if (err) goto free_buf; From 39066dc549cf8a688f6e105a4e9f2a8abefbcebe Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:30 -0800 Subject: [PATCH 07/15] ice: Fix implicit queue mapping mode in ice_vsi_get_qs Currently in ice_vsi_get_qs() we set the mapping_mode for Tx and Rx to vsi->[tx|rx]_mapping_mode, but the problem is vsi->[tx|rx]_mapping_mode have not been set yet. This was working because ICE_VSI_MAP_CONTIG is defined to 0. Fix this by being explicit with our mapping mode by initializing the Tx and Rx structure's mapping_mode to ICE_VSI_MAP_CONTIG and then setting the vsi->[tx|rx]_mapping_mode to the [tx|rx]_qs_cfg.mapping_mode values. Also, only assign the vsi->[tx|rx]_mapping_mode when the queues are successfully mapped to the VSI. With this change there was no longer a need to initialize the ret variable to 0 so remove that. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_lib.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 8bb8f8c73f3d..fe7748518e41 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -443,7 +443,7 @@ static int ice_vsi_get_qs(struct ice_vsi *vsi) .scatter_count = ICE_MAX_SCATTER_TXQS, .vsi_map = vsi->txq_map, .vsi_map_offset = 0, - .mapping_mode = vsi->tx_mapping_mode + .mapping_mode = ICE_VSI_MAP_CONTIG }; struct ice_qs_cfg rx_qs_cfg = { .qs_mutex = &pf->avail_q_mutex, @@ -453,18 +453,21 @@ static int ice_vsi_get_qs(struct ice_vsi *vsi) .scatter_count = ICE_MAX_SCATTER_RXQS, .vsi_map = vsi->rxq_map, .vsi_map_offset = 0, - .mapping_mode = vsi->rx_mapping_mode + .mapping_mode = ICE_VSI_MAP_CONTIG }; - int ret = 0; - - vsi->tx_mapping_mode = ICE_VSI_MAP_CONTIG; - vsi->rx_mapping_mode = ICE_VSI_MAP_CONTIG; + int ret; ret = __ice_vsi_get_qs(&tx_qs_cfg); - if (!ret) - ret = __ice_vsi_get_qs(&rx_qs_cfg); + if (ret) + return ret; + vsi->tx_mapping_mode = tx_qs_cfg.mapping_mode; - return ret; + ret = __ice_vsi_get_qs(&rx_qs_cfg); + if (ret) + return ret; + vsi->rx_mapping_mode = rx_qs_cfg.mapping_mode; + + return 0; } /** From 2309ae385a42c927be537b25ea89be9a0e64fc4a Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:31 -0800 Subject: [PATCH 08/15] ice: Handle LAN overflow event for VF queues Currently we are not handling LAN overflow events. There can be cases where LAN overflow events occur on VF queues, especially with Link Flow Control (LFC) enabled on the controlling PF. In order to recover from the LAN overflow event caused by a VF we need to determine if the queue belongs to a VF and reset that VF accordingly. The struct ice_aqc_event_lan_overflow returns a copy of the GLDCB_RTCTQ register, which tells us what the queue index is in the global/device space. The global queue index needs to first be converted to a PF space queue index and then it can be used to find if a VF owns it. Signed-off-by: Brett Creeley Signed-off-by: Tony Nguyen Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_adminq_cmd.h | 11 ++++ .../net/ethernet/intel/ice/ice_hw_autogen.h | 2 + drivers/net/ethernet/intel/ice/ice_main.c | 3 + .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 66 +++++++++++++++++++ .../net/ethernet/intel/ice/ice_virtchnl_pf.h | 4 ++ 5 files changed, 86 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h index 6873998cf145..38b6ffb6ad2e 100644 --- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h +++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h @@ -1661,6 +1661,13 @@ struct ice_aqc_get_pkg_info_resp { struct ice_aqc_get_pkg_info pkg_info[1]; }; +/* Lan Queue Overflow Event (direct, 0x1001) */ +struct ice_aqc_event_lan_overflow { + __le32 prtdcb_ruptq; + __le32 qtx_ctl; + u8 reserved[8]; +}; + /** * struct ice_aq_desc - Admin Queue (AQ) descriptor * @flags: ICE_AQ_FLAG_* flags @@ -1730,6 +1737,7 @@ struct ice_aq_desc { struct ice_aqc_alloc_free_res_cmd sw_res_ctrl; struct ice_aqc_set_event_mask set_event_mask; struct ice_aqc_get_link_status get_link_status; + struct ice_aqc_event_lan_overflow lan_overflow; } params; }; @@ -1860,6 +1868,9 @@ enum ice_adminq_opc { ice_aqc_opc_update_pkg = 0x0C42, ice_aqc_opc_get_pkg_info_list = 0x0C43, + /* Standalone Commands/Events */ + ice_aqc_opc_event_lan_overflow = 0x1001, + /* debug commands */ ice_aqc_opc_fw_logging = 0xFF09, ice_aqc_opc_fw_logging_info = 0xFF10, diff --git a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h index 6db3d0494127..b99ebfefe06b 100644 --- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h +++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h @@ -286,6 +286,8 @@ #define GL_PWR_MODE_CTL 0x000B820C #define GL_PWR_MODE_CTL_CAR_MAX_BW_S 30 #define GL_PWR_MODE_CTL_CAR_MAX_BW_M ICE_M(0x3, 30) +#define GLDCB_RTCTQ_RXQNUM_S 0 +#define GLDCB_RTCTQ_RXQNUM_M ICE_M(0x7FF, 0) #define GLPRT_BPRCL(_i) (0x00381380 + ((_i) * 8)) #define GLPRT_BPTCL(_i) (0x00381240 + ((_i) * 8)) #define GLPRT_CRCERRS(_i) (0x00380100 + ((_i) * 8)) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index ced070427fd7..9bbe9d1fc9a8 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1029,6 +1029,9 @@ static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type) if (ice_handle_link_event(pf, &event)) dev_err(dev, "Could not handle link event\n"); break; + case ice_aqc_opc_event_lan_overflow: + ice_vf_lan_overflow_event(pf, &event); + break; case ice_mbx_opc_send_msg_to_pf: ice_vc_process_vf_msg(pf, &event); break; diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 3666647da096..53a9e09c8f21 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -1513,6 +1513,72 @@ static void ice_vc_reset_vf(struct ice_vf *vf) ice_reset_vf(vf, false); } +/** + * ice_get_vf_from_pfq - get the VF who owns the PF space queue passed in + * @pf: PF used to index all VFs + * @pfq: queue index relative to the PF's function space + * + * If no VF is found who owns the pfq then return NULL, otherwise return a + * pointer to the VF who owns the pfq + */ +static struct ice_vf *ice_get_vf_from_pfq(struct ice_pf *pf, u16 pfq) +{ + int vf_id; + + ice_for_each_vf(pf, vf_id) { + struct ice_vf *vf = &pf->vf[vf_id]; + struct ice_vsi *vsi; + u16 rxq_idx; + + vsi = pf->vsi[vf->lan_vsi_idx]; + + ice_for_each_rxq(vsi, rxq_idx) + if (vsi->rxq_map[rxq_idx] == pfq) + return vf; + } + + return NULL; +} + +/** + * ice_globalq_to_pfq - convert from global queue index to PF space queue index + * @pf: PF used for conversion + * @globalq: global queue index used to convert to PF space queue index + */ +static u32 ice_globalq_to_pfq(struct ice_pf *pf, u32 globalq) +{ + return globalq - pf->hw.func_caps.common_cap.rxq_first_id; +} + +/** + * ice_vf_lan_overflow_event - handle LAN overflow event for a VF + * @pf: PF that the LAN overflow event happened on + * @event: structure holding the event information for the LAN overflow event + * + * Determine if the LAN overflow event was caused by a VF queue. If it was not + * caused by a VF, do nothing. If a VF caused this LAN overflow event trigger a + * reset on the offending VF. + */ +void +ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event) +{ + u32 gldcb_rtctq, queue; + struct ice_vf *vf; + + gldcb_rtctq = le32_to_cpu(event->desc.params.lan_overflow.prtdcb_ruptq); + dev_dbg(ice_pf_to_dev(pf), "GLDCB_RTCTQ: 0x%08x\n", gldcb_rtctq); + + /* event returns device global Rx queue number */ + queue = (gldcb_rtctq & GLDCB_RTCTQ_RXQNUM_M) >> + GLDCB_RTCTQ_RXQNUM_S; + + vf = ice_get_vf_from_pfq(pf, ice_globalq_to_pfq(pf, queue)); + if (!vf) + return; + + ice_vc_reset_vf(vf); +} + /** * ice_vc_send_msg_to_vf - Send message to VF * @vf: pointer to the VF info diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h index a1bb196d417a..c65269c15dfc 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h @@ -122,6 +122,9 @@ void ice_set_vf_state_qs_dis(struct ice_vf *vf); int ice_get_vf_stats(struct net_device *netdev, int vf_id, struct ifla_vf_stats *vf_stats); +void +ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event); + #else /* CONFIG_PCI_IOV */ #define ice_process_vflr_event(pf) do {} while (0) #define ice_free_vfs(pf) do {} while (0) @@ -129,6 +132,7 @@ ice_get_vf_stats(struct net_device *netdev, int vf_id, #define ice_vc_notify_link_state(pf) do {} while (0) #define ice_vc_notify_reset(pf) do {} while (0) #define ice_set_vf_state_qs_dis(vf) do {} while (0) +#define ice_vf_lan_overflow_event(pf, event) do {} while (0) static inline bool ice_reset_all_vfs(struct ice_pf __always_unused *pf, From e1fe6926800fc3d498db6ec85c6dea31ab151d8b Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:32 -0800 Subject: [PATCH 09/15] ice: Fix and refactor Rx queue disable for VFs Currently when a VF driver sends the PF a request to disable Rx queues we will disable them one at a time, even if the VF driver sent us a batch of queues to disable. This is causing issues where the Rx queue disable times out with LFC enabled. This can be improved by detecting when the VF is trying to disable all of its queues. Also remove the variable num_qs_ena from the ice_vf structure as it was only used to see if there were no Rx and no Tx queues active. Instead add a function that checks if both the vf->rxq_ena and vf->txq_ena bitmaps are empty. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 36 ++++++++++++++----- .../net/ethernet/intel/ice/ice_virtchnl_pf.h | 1 - 2 files changed, 27 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 53a9e09c8f21..7c8ec4fee25b 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -90,6 +90,19 @@ ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe, } } +/** + * ice_vf_has_no_qs_ena - check if the VF has any Rx or Tx queues enabled + * @vf: the VF to check + * + * Returns true if the VF has no Rx and no Tx queues enabled and returns false + * otherwise + */ +static bool ice_vf_has_no_qs_ena(struct ice_vf *vf) +{ + return (!bitmap_weight(vf->rxq_ena, ICE_MAX_BASE_QS_PER_VF) && + !bitmap_weight(vf->txq_ena, ICE_MAX_BASE_QS_PER_VF)); +} + /** * ice_is_vf_link_up - check if the VF's link is up * @vf: VF to check if link is up @@ -101,7 +114,7 @@ static bool ice_is_vf_link_up(struct ice_vf *vf) if (ice_check_vf_init(pf, vf)) return false; - if (!vf->num_qs_ena) + if (ice_vf_has_no_qs_ena(vf)) return false; else if (vf->link_forced) return vf->link_up; @@ -255,7 +268,6 @@ void ice_set_vf_state_qs_dis(struct ice_vf *vf) /* Clear Rx/Tx enabled queues flag */ bitmap_zero(vf->txq_ena, ICE_MAX_BASE_QS_PER_VF); bitmap_zero(vf->rxq_ena, ICE_MAX_BASE_QS_PER_VF); - vf->num_qs_ena = 0; clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states); } @@ -2125,7 +2137,6 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg) } set_bit(vf_q_id, vf->rxq_ena); - vf->num_qs_ena++; } vsi = pf->vsi[vf->lan_vsi_idx]; @@ -2141,7 +2152,6 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg) continue; set_bit(vf_q_id, vf->txq_ena); - vf->num_qs_ena++; } /* Set flag to indicate that queues are enabled */ @@ -2228,13 +2238,22 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg) /* Clear enabled queues flag */ clear_bit(vf_q_id, vf->txq_ena); - vf->num_qs_ena--; } } - if (vqs->rx_queues) { - q_map = vqs->rx_queues; + q_map = vqs->rx_queues; + /* speed up Rx queue disable by batching them if possible */ + if (q_map && + bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_BASE_QS_PER_VF)) { + if (ice_vsi_stop_all_rx_rings(vsi)) { + dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n", + vsi->vsi_num); + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + bitmap_zero(vf->rxq_ena, ICE_MAX_BASE_QS_PER_VF); + } else if (q_map) { for_each_set_bit(vf_q_id, &q_map, ICE_MAX_BASE_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; @@ -2255,12 +2274,11 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg) /* Clear enabled queues flag */ clear_bit(vf_q_id, vf->rxq_ena); - vf->num_qs_ena--; } } /* Clear enabled queues flag */ - if (v_ret == VIRTCHNL_STATUS_SUCCESS && !vf->num_qs_ena) + if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf)) clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states); error_param: diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h index c65269c15dfc..474b2613f09c 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h @@ -90,7 +90,6 @@ struct ice_vf { u8 num_req_qs; /* num of queue pairs requested by VF */ u16 num_mac; u16 num_vf_qs; /* num of queue configured per VF */ - u16 num_qs_ena; /* total num of Tx/Rx queue enabled */ }; #ifdef CONFIG_PCI_IOV From 24e2e2a0b8d3223ba58d996ed1bc82b660a375ad Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Wed, 22 Jan 2020 07:21:33 -0800 Subject: [PATCH 10/15] ice: Fix virtchnl_queue_select bitmap validation Currently in ice_vc_ena_qs_msg() we are incorrectly validating the virtchnl queue select bitmaps. The virtchnl_queue_select rx_queues and tx_queue bitmap is being compared against ICE_MAX_BASE_QS_PER_VF, but the problem is that these bitmaps can have a value greater than ICE_MAX_BASE_QS_PER_VF. Fix this by comparing the bitmaps against BIT(ICE_MAX_BASE_QS_PER_VF). Also, add the function ice_vc_validate_vqs_bitmaps() that checks to see if both virtchnl_queue_select bitmaps are empty along with checking that the bitmaps only have valid bits set. This function can then be used in both the queue enable and disable flows. Arkady Gilinksky's patch on the intel-wired-lan mailing list ("i40e/iavf: Fix msg interface between VF and PF") made me aware of this issue. Signed-off-by: Brett Creeley Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_virtchnl_pf.c | 26 +++++++++++++------ 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 7c8ec4fee25b..a21f9d2edbbb 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -2070,6 +2070,22 @@ static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg) (u8 *)&stats, sizeof(stats)); } +/** + * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL + * @vqs: virtchnl_queue_select structure containing bitmaps to validate + * + * Return true on successful validation, else false + */ +static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) +{ + if ((!vqs->rx_queues && !vqs->tx_queues) || + vqs->rx_queues >= BIT(ICE_MAX_BASE_QS_PER_VF) || + vqs->tx_queues >= BIT(ICE_MAX_BASE_QS_PER_VF)) + return false; + + return true; +} + /** * ice_vc_ena_qs_msg * @vf: pointer to the VF info @@ -2097,13 +2113,7 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg) goto error_param; } - if (!vqs->rx_queues && !vqs->tx_queues) { - v_ret = VIRTCHNL_STATUS_ERR_PARAM; - goto error_param; - } - - if (vqs->rx_queues > ICE_MAX_BASE_QS_PER_VF || - vqs->tx_queues > ICE_MAX_BASE_QS_PER_VF) { + if (!ice_vc_validate_vqs_bitmaps(vqs)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } @@ -2193,7 +2203,7 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg) goto error_param; } - if (!vqs->rx_queues && !vqs->tx_queues) { + if (!ice_vc_validate_vqs_bitmaps(vqs)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } From 752eee067843c7cb396b353cf087591451547c4f Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 22 Jan 2020 07:21:34 -0800 Subject: [PATCH 11/15] ice: remove unnecessary fallthrough comments Fallthrough comments are used to explicitly indicate the code is intended to flow from one case statement to the next in a switch statement rather than break out of the switch statement. They are only needed when a case has one or more statements to execute before falling through to the next case, not when there is a list of cases for which the same statement(s) should be executed. Signed-off-by: Bruce Allan Signed-off-by: Tony Nguyen Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_base.c | 1 - drivers/net/ethernet/intel/ice/ice_ethtool.c | 2 -- drivers/net/ethernet/intel/ice/ice_lib.c | 2 -- drivers/net/ethernet/intel/ice/ice_main.c | 2 -- drivers/net/ethernet/intel/ice/ice_sriov.c | 2 -- drivers/net/ethernet/intel/ice/ice_txrx.c | 1 - 6 files changed, 10 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c index 1c41e7e6d548..75cc5a366b26 100644 --- a/drivers/net/ethernet/intel/ice/ice_base.c +++ b/drivers/net/ethernet/intel/ice/ice_base.c @@ -247,7 +247,6 @@ ice_setup_tx_ctx(struct ice_ring *ring, struct ice_tlan_ctx *tlan_ctx, u16 pf_q) */ switch (vsi->type) { case ICE_VSI_LB: - /* fall through */ case ICE_VSI_PF: tlan_ctx->vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_PF; break; diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index c02af503764e..583e07fffd5f 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -1091,7 +1091,6 @@ ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) fecparam->active_fec = ETHTOOL_FEC_BASER; break; case ICE_AQ_LINK_25G_RS_528_FEC_EN: - /* fall through */ case ICE_AQ_LINK_25G_RS_544_FEC_EN: fecparam->active_fec = ETHTOOL_FEC_RS; break; @@ -1781,7 +1780,6 @@ ice_get_settings_link_up(struct ethtool_link_ksettings *ks, Asym_Pause); break; case ICE_FC_PFC: - /* fall through */ default: ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause); ethtool_link_ksettings_del_link_mode(ks, lp_advertising, diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index fe7748518e41..ff72a6d1c978 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -121,7 +121,6 @@ static void ice_vsi_set_num_desc(struct ice_vsi *vsi) { switch (vsi->type) { case ICE_VSI_PF: - /* fall through */ case ICE_VSI_LB: vsi->num_rx_desc = ICE_DFLT_NUM_RX_DESC; vsi->num_tx_desc = ICE_DFLT_NUM_TX_DESC; @@ -817,7 +816,6 @@ static int ice_vsi_init(struct ice_vsi *vsi, bool init_vsi) ctxt->info = vsi->info; switch (vsi->type) { case ICE_VSI_LB: - /* fall through */ case ICE_VSI_PF: ctxt->flags = ICE_AQ_VSI_TYPE_PF; break; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 9bbe9d1fc9a8..ce5397d18219 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -706,7 +706,6 @@ void ice_print_link_msg(struct ice_vsi *vsi, bool isup) /* Get FEC mode based on negotiated link info */ switch (vsi->port_info->phy.link_info.fec_info) { case ICE_AQ_LINK_25G_RS_528_FEC_EN: - /* fall through */ case ICE_AQ_LINK_25G_RS_544_FEC_EN: fec = "RS-FEC"; break; @@ -2955,7 +2954,6 @@ ice_log_pkg_init(struct ice_hw *hw, enum ice_status *status) } break; case ICE_ERR_BUF_TOO_SHORT: - /* fall-through */ case ICE_ERR_CFG: dev_err(dev, "The DDP package file is invalid. Entering Safe Mode.\n"); break; diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c index d2db0d04e117..554f567476f3 100644 --- a/drivers/net/ethernet/intel/ice/ice_sriov.c +++ b/drivers/net/ethernet/intel/ice/ice_sriov.c @@ -121,9 +121,7 @@ u32 ice_conv_link_speed_to_virtchnl(bool adv_link_support, u16 link_speed) speed = (u32)VIRTCHNL_LINK_SPEED_25GB; break; case ICE_AQ_LINK_SPEED_40GB: - /* fall through */ case ICE_AQ_LINK_SPEED_50GB: - /* fall through */ case ICE_AQ_LINK_SPEED_100GB: speed = (u32)VIRTCHNL_LINK_SPEED_40GB; break; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 4de61dbedd36..0c08ab0462df 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -1188,7 +1188,6 @@ ice_adjust_itr_by_size_and_speed(struct ice_port_info *port_info, avg_pkt_size + 640); break; case ICE_AQ_LINK_SPEED_10GB: - /* fall through */ default: itr += DIV_ROUND_UP(170 * (avg_pkt_size + 24), avg_pkt_size + 640); From 4e83fc934e3a0436acf26b7d40a6c8a8c40663dc Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 22 Jan 2020 07:21:35 -0800 Subject: [PATCH 12/15] ice: replace "fallthrough" comments with fallthrough reserved word "fallthrough" comments are used in switch case statements to explicitly indicate the code is intended to fall through to the following statement. Different variants of "fallthough" are acceptable, e.g. "fall through", "fallthrough", "Fall-through". The GCC compiler has an optional warning (-Wimplicit-fallthrough[=n]) to warn when such a comment is not present; the default version of which is enabled when compiling the Linux kernel. There have been recent discussions in kernel mailing lists regarding replacing non-standardized "fallthrough" comments with the pseudo-reserved word 'fallthrough' which will be defined as __attribute__ ((fallthrough)) for versions of gcc that support it (i.e. gcc 7 and newer) or as a nop for versions that do not. Replace "fallthrough" comments with fallthrough reserved word. Signed-off-by: Bruce Allan Signed-off-by: Tony Nguyen Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_common.c | 4 ++-- drivers/net/ethernet/intel/ice/ice_main.c | 2 +- drivers/net/ethernet/intel/ice/ice_switch.c | 4 ++-- drivers/net/ethernet/intel/ice/ice_txrx.c | 4 ++-- drivers/net/ethernet/intel/ice/ice_xsk.c | 4 ++-- 5 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 04d5db0a25bf..5587e9eb4cd0 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -1181,7 +1181,7 @@ ice_aq_send_cmd(struct ice_hw *hw, struct ice_aq_desc *desc, void *buf, case ice_aqc_opc_release_res: if (le16_to_cpu(cmd->res_id) == ICE_AQC_RES_ID_GLBL_LOCK) break; - /* fall-through */ + fallthrough; default: mutex_lock(&ice_global_cfg_lock_sw); lock_acquired = true; @@ -2703,7 +2703,7 @@ __ice_aq_get_set_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut, ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; break; } - /* fall-through */ + fallthrough; default: status = ICE_ERR_PARAM; goto ice_aq_get_set_rss_lut_exit; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index ce5397d18219..160328cd0d7e 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2985,7 +2985,7 @@ ice_log_pkg_init(struct ice_hw *hw, enum ice_status *status) default: break; } - /* fall-through */ + fallthrough; default: dev_err(dev, "An unknown error (%d) occurred when loading the DDP package. Entering Safe Mode.\n", *status); diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c index 431266081a80..4d96abfd05d6 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.c +++ b/drivers/net/ethernet/intel/ice/ice_switch.c @@ -760,7 +760,7 @@ ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info, break; case ICE_SW_LKUP_ETHERTYPE_MAC: daddr = f_info->l_data.ethertype_mac.mac_addr; - /* fall-through */ + fallthrough; case ICE_SW_LKUP_ETHERTYPE: off = (__force __be16 *)(eth_hdr + ICE_ETH_ETHTYPE_OFFSET); *off = cpu_to_be16(f_info->l_data.ethertype_mac.ethertype); @@ -771,7 +771,7 @@ ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info, break; case ICE_SW_LKUP_PROMISC_VLAN: vlan_id = f_info->l_data.mac_vlan.vlan_id; - /* fall-through */ + fallthrough; case ICE_SW_LKUP_PROMISC: daddr = f_info->l_data.mac_vlan.mac_addr; break; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 0c08ab0462df..f67e8362958c 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -453,10 +453,10 @@ ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp, break; default: bpf_warn_invalid_xdp_action(act); - /* fallthrough -- not supported action */ + fallthrough; case XDP_ABORTED: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); - /* fallthrough -- handle aborts by dropping frame */ + fallthrough; case XDP_DROP: result = ICE_XDP_CONSUMED; break; diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index fd96301e59bb..4adb8a3ba06e 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -816,10 +816,10 @@ ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp) break; default: bpf_warn_invalid_xdp_action(act); - /* fallthrough -- not supported action */ + fallthrough; case XDP_ABORTED: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); - /* fallthrough -- handle aborts by dropping frame */ + fallthrough; case XDP_DROP: result = ICE_XDP_CONSUMED; break; From e0708aa8a5c4cc428f2b1d602e73143ce43ec758 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 22 Jan 2020 07:21:36 -0800 Subject: [PATCH 13/15] ice: use proper format for function pointer as a function parameter Compiling with gcc-9.2.1 with W=1 points out warnings about the improper function parameter list. Fix it. Signed-off-by: Bruce Allan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_xsk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 4adb8a3ba06e..b6b0f1180b13 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -609,7 +609,7 @@ ice_alloc_buf_slow_zc(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf) */ static bool ice_alloc_rx_bufs_zc(struct ice_ring *rx_ring, int count, - bool alloc(struct ice_ring *, struct ice_rx_buf *)) + bool (*alloc)(struct ice_ring *, struct ice_rx_buf *)) { union ice_32b_rx_flex_desc *rx_desc; u16 ntu = rx_ring->next_to_use; From 644f40ea0c08942f088fbcaf2f43d999fc64fce4 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 22 Jan 2020 07:21:37 -0800 Subject: [PATCH 14/15] ice: add function argument description to function header comment Commit 0290bd291cc0 ("netdev: pass the stuck queue to the timeout handler") introduced a new argument to the function but missed adding the description of the argument to the function header comment. Add it now. Signed-off-by: Bruce Allan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 160328cd0d7e..255317e4b1f3 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -5035,6 +5035,7 @@ ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, /** * ice_tx_timeout - Respond to a Tx Hang * @netdev: network interface device structure + * @txqueue: Tx queue */ static void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue) { From fb0c5b05c1d4ca512c0ba13053da002ee89d388b Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 22 Jan 2020 07:21:38 -0800 Subject: [PATCH 15/15] ice: use true/false for bool types Subject says it all. Signed-off-by: Bruce Allan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_xsk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index b6b0f1180b13..55d994f2d71e 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -841,8 +841,8 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget) unsigned int total_rx_bytes = 0, total_rx_packets = 0; u16 cleaned_count = ICE_DESC_UNUSED(rx_ring); unsigned int xdp_xmit = 0; + bool failure = false; struct xdp_buff xdp; - bool failure = 0; xdp.rxq = &rx_ring->xdp_rxq;