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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/ethernet/intel/ice/ice_virtchnl.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_virtchnl.c')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_virtchnl.c3826
1 files changed, 3826 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
new file mode 100644
index 000000000..2b4c791b6
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -0,0 +1,3826 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022, Intel Corporation. */
+
+#include "ice_virtchnl.h"
+#include "ice_vf_lib_private.h"
+#include "ice.h"
+#include "ice_base.h"
+#include "ice_lib.h"
+#include "ice_fltr.h"
+#include "ice_virtchnl_allowlist.h"
+#include "ice_vf_vsi_vlan_ops.h"
+#include "ice_vlan.h"
+#include "ice_flex_pipe.h"
+#include "ice_dcb_lib.h"
+
+#define FIELD_SELECTOR(proto_hdr_field) \
+ BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK)
+
+struct ice_vc_hdr_match_type {
+ u32 vc_hdr; /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */
+ u32 ice_hdr; /* ice headers (ICE_FLOW_SEG_HDR_XXX) */
+};
+
+static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = {
+ {VIRTCHNL_PROTO_HDR_NONE, ICE_FLOW_SEG_HDR_NONE},
+ {VIRTCHNL_PROTO_HDR_ETH, ICE_FLOW_SEG_HDR_ETH},
+ {VIRTCHNL_PROTO_HDR_S_VLAN, ICE_FLOW_SEG_HDR_VLAN},
+ {VIRTCHNL_PROTO_HDR_C_VLAN, ICE_FLOW_SEG_HDR_VLAN},
+ {VIRTCHNL_PROTO_HDR_IPV4, ICE_FLOW_SEG_HDR_IPV4 |
+ ICE_FLOW_SEG_HDR_IPV_OTHER},
+ {VIRTCHNL_PROTO_HDR_IPV6, ICE_FLOW_SEG_HDR_IPV6 |
+ ICE_FLOW_SEG_HDR_IPV_OTHER},
+ {VIRTCHNL_PROTO_HDR_TCP, ICE_FLOW_SEG_HDR_TCP},
+ {VIRTCHNL_PROTO_HDR_UDP, ICE_FLOW_SEG_HDR_UDP},
+ {VIRTCHNL_PROTO_HDR_SCTP, ICE_FLOW_SEG_HDR_SCTP},
+ {VIRTCHNL_PROTO_HDR_PPPOE, ICE_FLOW_SEG_HDR_PPPOE},
+ {VIRTCHNL_PROTO_HDR_GTPU_IP, ICE_FLOW_SEG_HDR_GTPU_IP},
+ {VIRTCHNL_PROTO_HDR_GTPU_EH, ICE_FLOW_SEG_HDR_GTPU_EH},
+ {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
+ ICE_FLOW_SEG_HDR_GTPU_DWN},
+ {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
+ ICE_FLOW_SEG_HDR_GTPU_UP},
+ {VIRTCHNL_PROTO_HDR_L2TPV3, ICE_FLOW_SEG_HDR_L2TPV3},
+ {VIRTCHNL_PROTO_HDR_ESP, ICE_FLOW_SEG_HDR_ESP},
+ {VIRTCHNL_PROTO_HDR_AH, ICE_FLOW_SEG_HDR_AH},
+ {VIRTCHNL_PROTO_HDR_PFCP, ICE_FLOW_SEG_HDR_PFCP_SESSION},
+};
+
+struct ice_vc_hash_field_match_type {
+ u32 vc_hdr; /* virtchnl headers
+ * (VIRTCHNL_PROTO_HDR_XXX)
+ */
+ u32 vc_hash_field; /* virtchnl hash fields selector
+ * FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX))
+ */
+ u64 ice_hash_field; /* ice hash fields
+ * (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX))
+ */
+};
+
+static const struct
+ice_vc_hash_field_match_type ice_vc_hash_field_list[] = {
+ {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)},
+ {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)},
+ {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
+ ICE_FLOW_HASH_ETH},
+ {VIRTCHNL_PROTO_HDR_ETH,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)},
+ {VIRTCHNL_PROTO_HDR_S_VLAN,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)},
+ {VIRTCHNL_PROTO_HDR_C_VLAN,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
+ ICE_FLOW_HASH_IPV4},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
+ ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
+ ICE_FLOW_HASH_IPV6},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) |
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) |
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
+ ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
+ {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
+ {VIRTCHNL_PROTO_HDR_TCP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+ {VIRTCHNL_PROTO_HDR_TCP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+ {VIRTCHNL_PROTO_HDR_TCP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
+ ICE_FLOW_HASH_TCP_PORT},
+ {VIRTCHNL_PROTO_HDR_UDP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+ {VIRTCHNL_PROTO_HDR_UDP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+ {VIRTCHNL_PROTO_HDR_UDP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
+ ICE_FLOW_HASH_UDP_PORT},
+ {VIRTCHNL_PROTO_HDR_SCTP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+ {VIRTCHNL_PROTO_HDR_SCTP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+ {VIRTCHNL_PROTO_HDR_SCTP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
+ ICE_FLOW_HASH_SCTP_PORT},
+ {VIRTCHNL_PROTO_HDR_PPPOE,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)},
+ {VIRTCHNL_PROTO_HDR_GTPU_IP,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)},
+ {VIRTCHNL_PROTO_HDR_L2TPV3,
+ FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)},
+ {VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)},
+ {VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)},
+ {VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID),
+ BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)},
+};
+
+/**
+ * ice_vc_vf_broadcast - Broadcast a message to all VFs on PF
+ * @pf: pointer to the PF structure
+ * @v_opcode: operation code
+ * @v_retval: return value
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ */
+static void
+ice_vc_vf_broadcast(struct ice_pf *pf, enum virtchnl_ops v_opcode,
+ enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
+{
+ struct ice_hw *hw = &pf->hw;
+ struct ice_vf *vf;
+ unsigned int bkt;
+
+ mutex_lock(&pf->vfs.table_lock);
+ ice_for_each_vf(pf, bkt, vf) {
+ /* Not all vfs are enabled so skip the ones that are not */
+ if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
+ !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
+ continue;
+
+ /* Ignore return value on purpose - a given VF may fail, but
+ * we need to keep going and send to all of them
+ */
+ ice_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval, msg,
+ msglen, NULL);
+ }
+ mutex_unlock(&pf->vfs.table_lock);
+}
+
+/**
+ * ice_set_pfe_link - Set the link speed/status of the virtchnl_pf_event
+ * @vf: pointer to the VF structure
+ * @pfe: pointer to the virtchnl_pf_event to set link speed/status for
+ * @ice_link_speed: link speed specified by ICE_AQ_LINK_SPEED_*
+ * @link_up: whether or not to set the link up/down
+ */
+static void
+ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe,
+ int ice_link_speed, bool link_up)
+{
+ if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
+ pfe->event_data.link_event_adv.link_status = link_up;
+ /* Speed in Mbps */
+ pfe->event_data.link_event_adv.link_speed =
+ ice_conv_link_speed_to_virtchnl(true, ice_link_speed);
+ } else {
+ pfe->event_data.link_event.link_status = link_up;
+ /* Legacy method for virtchnl link speeds */
+ pfe->event_data.link_event.link_speed =
+ (enum virtchnl_link_speed)
+ ice_conv_link_speed_to_virtchnl(false, ice_link_speed);
+ }
+}
+
+/**
+ * ice_vc_notify_vf_link_state - Inform a VF of link status
+ * @vf: pointer to the VF structure
+ *
+ * send a link status message to a single VF
+ */
+void ice_vc_notify_vf_link_state(struct ice_vf *vf)
+{
+ struct virtchnl_pf_event pfe = { 0 };
+ struct ice_hw *hw = &vf->pf->hw;
+
+ pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
+ pfe.severity = PF_EVENT_SEVERITY_INFO;
+
+ 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);
+
+ ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT,
+ VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe,
+ sizeof(pfe), NULL);
+}
+
+/**
+ * ice_vc_notify_link_state - Inform all VFs on a PF of link status
+ * @pf: pointer to the PF structure
+ */
+void ice_vc_notify_link_state(struct ice_pf *pf)
+{
+ struct ice_vf *vf;
+ unsigned int bkt;
+
+ mutex_lock(&pf->vfs.table_lock);
+ ice_for_each_vf(pf, bkt, vf)
+ ice_vc_notify_vf_link_state(vf);
+ mutex_unlock(&pf->vfs.table_lock);
+}
+
+/**
+ * ice_vc_notify_reset - Send pending reset message to all VFs
+ * @pf: pointer to the PF structure
+ *
+ * indicate a pending reset to all VFs on a given PF
+ */
+void ice_vc_notify_reset(struct ice_pf *pf)
+{
+ struct virtchnl_pf_event pfe;
+
+ if (!ice_has_vfs(pf))
+ return;
+
+ pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
+ pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
+ ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS,
+ (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
+}
+
+/**
+ * ice_vc_send_msg_to_vf - Send message to VF
+ * @vf: pointer to the VF info
+ * @v_opcode: virtual channel opcode
+ * @v_retval: virtual channel return value
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ *
+ * send msg to VF
+ */
+int
+ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
+ enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
+{
+ struct device *dev;
+ struct ice_pf *pf;
+ int aq_ret;
+
+ pf = vf->pf;
+ dev = ice_pf_to_dev(pf);
+
+ aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
+ msg, msglen, NULL);
+ if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
+ dev_info(dev, "Unable to send the message to VF %d ret %d aq_err %s\n",
+ vf->vf_id, aq_ret,
+ ice_aq_str(pf->hw.mailboxq.sq_last_status));
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vc_get_ver_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to request the API version used by the PF
+ */
+static int ice_vc_get_ver_msg(struct ice_vf *vf, u8 *msg)
+{
+ struct virtchnl_version_info info = {
+ VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
+ };
+
+ vf->vf_ver = *(struct virtchnl_version_info *)msg;
+ /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
+ if (VF_IS_V10(&vf->vf_ver))
+ info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
+
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
+ VIRTCHNL_STATUS_SUCCESS, (u8 *)&info,
+ sizeof(struct virtchnl_version_info));
+}
+
+/**
+ * ice_vc_get_max_frame_size - get max frame size allowed for VF
+ * @vf: VF used to determine max frame size
+ *
+ * Max frame size is determined based on the current port's max frame size and
+ * whether a port VLAN is configured on this VF. The VF is not aware whether
+ * it's in a port VLAN so the PF needs to account for this in max frame size
+ * checks and sending the max frame size to the VF.
+ */
+static u16 ice_vc_get_max_frame_size(struct ice_vf *vf)
+{
+ struct ice_port_info *pi = ice_vf_get_port_info(vf);
+ u16 max_frame_size;
+
+ max_frame_size = pi->phy.link_info.max_frame_size;
+
+ if (ice_vf_is_port_vlan_ena(vf))
+ max_frame_size -= VLAN_HLEN;
+
+ return max_frame_size;
+}
+
+/**
+ * ice_vc_get_vlan_caps
+ * @hw: pointer to the hw
+ * @vf: pointer to the VF info
+ * @vsi: pointer to the VSI
+ * @driver_caps: current driver caps
+ *
+ * Return 0 if there is no VLAN caps supported, or VLAN caps value
+ */
+static u32
+ice_vc_get_vlan_caps(struct ice_hw *hw, struct ice_vf *vf, struct ice_vsi *vsi,
+ u32 driver_caps)
+{
+ if (ice_is_eswitch_mode_switchdev(vf->pf))
+ /* In switchdev setting VLAN from VF isn't supported */
+ return 0;
+
+ if (driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN_V2) {
+ /* VLAN offloads based on current device configuration */
+ return VIRTCHNL_VF_OFFLOAD_VLAN_V2;
+ } else if (driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN) {
+ /* allow VF to negotiate VIRTCHNL_VF_OFFLOAD explicitly for
+ * these two conditions, which amounts to guest VLAN filtering
+ * and offloads being based on the inner VLAN or the
+ * inner/single VLAN respectively and don't allow VF to
+ * negotiate VIRTCHNL_VF_OFFLOAD in any other cases
+ */
+ if (ice_is_dvm_ena(hw) && ice_vf_is_port_vlan_ena(vf)) {
+ return VIRTCHNL_VF_OFFLOAD_VLAN;
+ } else if (!ice_is_dvm_ena(hw) &&
+ !ice_vf_is_port_vlan_ena(vf)) {
+ /* configure backward compatible support for VFs that
+ * only support VIRTCHNL_VF_OFFLOAD_VLAN, the PF is
+ * configured in SVM, and no port VLAN is configured
+ */
+ ice_vf_vsi_cfg_svm_legacy_vlan_mode(vsi);
+ return VIRTCHNL_VF_OFFLOAD_VLAN;
+ } else if (ice_is_dvm_ena(hw)) {
+ /* configure software offloaded VLAN support when DVM
+ * is enabled, but no port VLAN is enabled
+ */
+ ice_vf_vsi_cfg_dvm_legacy_vlan_mode(vsi);
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vc_get_vf_res_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to request its resources
+ */
+static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vf_resource *vfres = NULL;
+ struct ice_hw *hw = &vf->pf->hw;
+ struct ice_vsi *vsi;
+ int len = 0;
+ int ret;
+
+ if (ice_check_vf_init(vf)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto err;
+ }
+
+ len = sizeof(struct virtchnl_vf_resource);
+
+ vfres = kzalloc(len, GFP_KERNEL);
+ if (!vfres) {
+ v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
+ len = 0;
+ goto err;
+ }
+ if (VF_IS_V11(&vf->vf_ver))
+ vf->driver_caps = *(u32 *)msg;
+ else
+ vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
+ VIRTCHNL_VF_OFFLOAD_RSS_REG |
+ VIRTCHNL_VF_OFFLOAD_VLAN;
+
+ vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto err;
+ }
+
+ vfres->vf_cap_flags |= ice_vc_get_vlan_caps(hw, vf, vsi,
+ vf->driver_caps);
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
+ } else {
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
+ else
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
+ }
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_FDIR_PF;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
+
+ if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF;
+
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO;
+
+ vfres->num_vsis = 1;
+ /* Tx and Rx queue are equal for VF */
+ vfres->num_queue_pairs = vsi->num_txq;
+ vfres->max_vectors = vf->pf->vfs.num_msix_per;
+ vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
+ vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
+ vfres->max_mtu = ice_vc_get_max_frame_size(vf);
+
+ vfres->vsi_res[0].vsi_id = vf->lan_vsi_num;
+ vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
+ vfres->vsi_res[0].num_queue_pairs = vsi->num_txq;
+ ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
+ vf->hw_lan_addr.addr);
+
+ /* match guest capabilities */
+ vf->driver_caps = vfres->vf_cap_flags;
+
+ ice_vc_set_caps_allowlist(vf);
+ ice_vc_set_working_allowlist(vf);
+
+ set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
+
+err:
+ /* send the response back to the VF */
+ ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, v_ret,
+ (u8 *)vfres, len);
+
+ kfree(vfres);
+ return ret;
+}
+
+/**
+ * ice_vc_reset_vf_msg
+ * @vf: pointer to the VF info
+ *
+ * called from the VF to reset itself,
+ * unlike other virtchnl messages, PF driver
+ * doesn't send the response back to the VF
+ */
+static void ice_vc_reset_vf_msg(struct ice_vf *vf)
+{
+ if (test_bit(ICE_VF_STATE_INIT, vf->vf_states))
+ ice_reset_vf(vf, 0);
+}
+
+/**
+ * ice_vc_isvalid_vsi_id
+ * @vf: pointer to the VF info
+ * @vsi_id: VF relative VSI ID
+ *
+ * check for the valid VSI ID
+ */
+bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
+{
+ struct ice_pf *pf = vf->pf;
+ struct ice_vsi *vsi;
+
+ vsi = ice_find_vsi(pf, vsi_id);
+
+ return (vsi && (vsi->vf == vf));
+}
+
+/**
+ * ice_vc_isvalid_q_id
+ * @vf: pointer to the VF info
+ * @vsi_id: VSI ID
+ * @qid: VSI relative queue ID
+ *
+ * check for the valid queue ID
+ */
+static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
+{
+ struct ice_vsi *vsi = ice_find_vsi(vf->pf, vsi_id);
+ /* allocated Tx and Rx queues should be always equal for VF VSI */
+ return (vsi && (qid < vsi->alloc_txq));
+}
+
+/**
+ * ice_vc_isvalid_ring_len
+ * @ring_len: length of ring
+ *
+ * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE
+ * or zero
+ */
+static bool ice_vc_isvalid_ring_len(u16 ring_len)
+{
+ return ring_len == 0 ||
+ (ring_len >= ICE_MIN_NUM_DESC &&
+ ring_len <= ICE_MAX_NUM_DESC &&
+ !(ring_len % ICE_REQ_DESC_MULTIPLE));
+}
+
+/**
+ * ice_vc_validate_pattern
+ * @vf: pointer to the VF info
+ * @proto: virtchnl protocol headers
+ *
+ * validate the pattern is supported or not.
+ *
+ * Return: true on success, false on error.
+ */
+bool
+ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto)
+{
+ bool is_ipv4 = false;
+ bool is_ipv6 = false;
+ bool is_udp = false;
+ u16 ptype = -1;
+ int i = 0;
+
+ while (i < proto->count &&
+ proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) {
+ switch (proto->proto_hdr[i].type) {
+ case VIRTCHNL_PROTO_HDR_ETH:
+ ptype = ICE_PTYPE_MAC_PAY;
+ break;
+ case VIRTCHNL_PROTO_HDR_IPV4:
+ ptype = ICE_PTYPE_IPV4_PAY;
+ is_ipv4 = true;
+ break;
+ case VIRTCHNL_PROTO_HDR_IPV6:
+ ptype = ICE_PTYPE_IPV6_PAY;
+ is_ipv6 = true;
+ break;
+ case VIRTCHNL_PROTO_HDR_UDP:
+ if (is_ipv4)
+ ptype = ICE_PTYPE_IPV4_UDP_PAY;
+ else if (is_ipv6)
+ ptype = ICE_PTYPE_IPV6_UDP_PAY;
+ is_udp = true;
+ break;
+ case VIRTCHNL_PROTO_HDR_TCP:
+ if (is_ipv4)
+ ptype = ICE_PTYPE_IPV4_TCP_PAY;
+ else if (is_ipv6)
+ ptype = ICE_PTYPE_IPV6_TCP_PAY;
+ break;
+ case VIRTCHNL_PROTO_HDR_SCTP:
+ if (is_ipv4)
+ ptype = ICE_PTYPE_IPV4_SCTP_PAY;
+ else if (is_ipv6)
+ ptype = ICE_PTYPE_IPV6_SCTP_PAY;
+ break;
+ case VIRTCHNL_PROTO_HDR_GTPU_IP:
+ case VIRTCHNL_PROTO_HDR_GTPU_EH:
+ if (is_ipv4)
+ ptype = ICE_MAC_IPV4_GTPU;
+ else if (is_ipv6)
+ ptype = ICE_MAC_IPV6_GTPU;
+ goto out;
+ case VIRTCHNL_PROTO_HDR_L2TPV3:
+ if (is_ipv4)
+ ptype = ICE_MAC_IPV4_L2TPV3;
+ else if (is_ipv6)
+ ptype = ICE_MAC_IPV6_L2TPV3;
+ goto out;
+ case VIRTCHNL_PROTO_HDR_ESP:
+ if (is_ipv4)
+ ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP :
+ ICE_MAC_IPV4_ESP;
+ else if (is_ipv6)
+ ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP :
+ ICE_MAC_IPV6_ESP;
+ goto out;
+ case VIRTCHNL_PROTO_HDR_AH:
+ if (is_ipv4)
+ ptype = ICE_MAC_IPV4_AH;
+ else if (is_ipv6)
+ ptype = ICE_MAC_IPV6_AH;
+ goto out;
+ case VIRTCHNL_PROTO_HDR_PFCP:
+ if (is_ipv4)
+ ptype = ICE_MAC_IPV4_PFCP_SESSION;
+ else if (is_ipv6)
+ ptype = ICE_MAC_IPV6_PFCP_SESSION;
+ goto out;
+ default:
+ break;
+ }
+ i++;
+ }
+
+out:
+ return ice_hw_ptype_ena(&vf->pf->hw, ptype);
+}
+
+/**
+ * ice_vc_parse_rss_cfg - parses hash fields and headers from
+ * a specific virtchnl RSS cfg
+ * @hw: pointer to the hardware
+ * @rss_cfg: pointer to the virtchnl RSS cfg
+ * @addl_hdrs: pointer to the protocol header fields (ICE_FLOW_SEG_HDR_*)
+ * to configure
+ * @hash_flds: pointer to the hash bit fields (ICE_FLOW_HASH_*) to configure
+ *
+ * Return true if all the protocol header and hash fields in the RSS cfg could
+ * be parsed, else return false
+ *
+ * This function parses the virtchnl RSS cfg to be the intended
+ * hash fields and the intended header for RSS configuration
+ */
+static bool
+ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg,
+ u32 *addl_hdrs, u64 *hash_flds)
+{
+ const struct ice_vc_hash_field_match_type *hf_list;
+ const struct ice_vc_hdr_match_type *hdr_list;
+ int i, hf_list_len, hdr_list_len;
+
+ hf_list = ice_vc_hash_field_list;
+ hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list);
+ hdr_list = ice_vc_hdr_list;
+ hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list);
+
+ for (i = 0; i < rss_cfg->proto_hdrs.count; i++) {
+ struct virtchnl_proto_hdr *proto_hdr =
+ &rss_cfg->proto_hdrs.proto_hdr[i];
+ bool hdr_found = false;
+ int j;
+
+ /* Find matched ice headers according to virtchnl headers. */
+ for (j = 0; j < hdr_list_len; j++) {
+ struct ice_vc_hdr_match_type hdr_map = hdr_list[j];
+
+ if (proto_hdr->type == hdr_map.vc_hdr) {
+ *addl_hdrs |= hdr_map.ice_hdr;
+ hdr_found = true;
+ }
+ }
+
+ if (!hdr_found)
+ return false;
+
+ /* Find matched ice hash fields according to
+ * virtchnl hash fields.
+ */
+ for (j = 0; j < hf_list_len; j++) {
+ struct ice_vc_hash_field_match_type hf_map = hf_list[j];
+
+ if (proto_hdr->type == hf_map.vc_hdr &&
+ proto_hdr->field_selector == hf_map.vc_hash_field) {
+ *hash_flds |= hf_map.ice_hash_field;
+ break;
+ }
+ }
+ }
+
+ return true;
+}
+
+/**
+ * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced
+ * RSS offloads
+ * @caps: VF driver negotiated capabilities
+ *
+ * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set,
+ * else return false
+ */
+static bool ice_vf_adv_rss_offload_ena(u32 caps)
+{
+ return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
+}
+
+/**
+ * ice_vc_handle_rss_cfg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the message buffer
+ * @add: add a RSS config if true, otherwise delete a RSS config
+ *
+ * This function adds/deletes a RSS config
+ */
+static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add)
+{
+ u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
+ struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg;
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ struct ice_hw *hw = &vf->pf->hw;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+ dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n",
+ vf->vf_id);
+ v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
+ goto error_param;
+ }
+
+ if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) {
+ dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n",
+ vf->vf_id);
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS ||
+ rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC ||
+ rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) {
+ dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n",
+ vf->vf_id);
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) {
+ struct ice_vsi_ctx *ctx;
+ u8 lut_type, hash_type;
+ int status;
+
+ lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
+ hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_XOR :
+ ICE_AQ_VSI_Q_OPT_RSS_TPLZ;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx) {
+ v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
+ goto error_param;
+ }
+
+ ctx->info.q_opt_rss = ((lut_type <<
+ ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
+ ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
+ (hash_type &
+ ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
+
+ /* Preserve existing queueing option setting */
+ ctx->info.q_opt_rss |= (vsi->info.q_opt_rss &
+ ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M);
+ ctx->info.q_opt_tc = vsi->info.q_opt_tc;
+ ctx->info.q_opt_flags = vsi->info.q_opt_rss;
+
+ ctx->info.valid_sections =
+ cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
+
+ status = ice_update_vsi(hw, vsi->idx, ctx, NULL);
+ if (status) {
+ dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n",
+ status, ice_aq_str(hw->adminq.sq_last_status));
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ } else {
+ vsi->info.q_opt_rss = ctx->info.q_opt_rss;
+ }
+
+ kfree(ctx);
+ } else {
+ u32 addl_hdrs = ICE_FLOW_SEG_HDR_NONE;
+ u64 hash_flds = ICE_HASH_INVALID;
+
+ if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &addl_hdrs,
+ &hash_flds)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (add) {
+ if (ice_add_rss_cfg(hw, vsi->idx, hash_flds,
+ addl_hdrs)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n",
+ vsi->vsi_num, v_ret);
+ }
+ } else {
+ int status;
+
+ status = ice_rem_rss_cfg(hw, vsi->idx, hash_flds,
+ addl_hdrs);
+ /* We just ignore -ENOENT, because if two configurations
+ * share the same profile remove one of them actually
+ * removes both, since the profile is deleted.
+ */
+ if (status && status != -ENOENT) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n",
+ vf->vf_id, status);
+ }
+ }
+ }
+
+error_param:
+ return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_config_rss_key
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * Configure the VF's RSS key
+ */
+static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_rss_key *vrk =
+ (struct virtchnl_rss_key *)msg;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (ice_set_rss_key(vsi, vrk->key))
+ v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
+error_param:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret,
+ NULL, 0);
+}
+
+/**
+ * ice_vc_config_rss_lut
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * Configure the VF's RSS LUT
+ */
+static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
+{
+ struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (ice_set_rss_lut(vsi, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
+ v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
+error_param:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
+ NULL, 0);
+}
+
+/**
+ * ice_vc_cfg_promiscuous_mode_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to configure VF VSIs promiscuous mode
+ */
+static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ bool rm_promisc, alluni = false, allmulti = false;
+ struct virtchnl_promisc_info *info =
+ (struct virtchnl_promisc_info *)msg;
+ struct ice_vsi_vlan_ops *vlan_ops;
+ int mcast_err = 0, ucast_err = 0;
+ struct ice_pf *pf = vf->pf;
+ struct ice_vsi *vsi;
+ u8 mcast_m, ucast_m;
+ struct device *dev;
+ int ret = 0;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ dev = ice_pf_to_dev(pf);
+ if (!ice_is_vf_trusted(vf)) {
+ dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n",
+ vf->vf_id);
+ /* Leave v_ret alone, lie to the VF on purpose. */
+ goto error_param;
+ }
+
+ if (info->flags & FLAG_VF_UNICAST_PROMISC)
+ alluni = true;
+
+ if (info->flags & FLAG_VF_MULTICAST_PROMISC)
+ allmulti = true;
+
+ rm_promisc = !allmulti && !alluni;
+
+ vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
+ if (rm_promisc)
+ ret = vlan_ops->ena_rx_filtering(vsi);
+ else
+ ret = vlan_ops->dis_rx_filtering(vsi);
+ if (ret) {
+ dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n");
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ ice_vf_get_promisc_masks(vf, vsi, &ucast_m, &mcast_m);
+
+ if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) {
+ if (alluni) {
+ /* in this case we're turning on promiscuous mode */
+ ret = ice_set_dflt_vsi(vsi);
+ } else {
+ /* in this case we're turning off promiscuous mode */
+ if (ice_is_dflt_vsi_in_use(vsi->port_info))
+ ret = ice_clear_dflt_vsi(vsi);
+ }
+
+ /* in this case we're turning on/off only
+ * allmulticast
+ */
+ if (allmulti)
+ mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
+ else
+ mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
+
+ if (ret) {
+ dev_err(dev, "Turning on/off promiscuous mode for VF %d failed, error: %d\n",
+ vf->vf_id, ret);
+ v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
+ goto error_param;
+ }
+ } else {
+ if (alluni)
+ ucast_err = ice_vf_set_vsi_promisc(vf, vsi, ucast_m);
+ else
+ ucast_err = ice_vf_clear_vsi_promisc(vf, vsi, ucast_m);
+
+ if (allmulti)
+ mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
+ else
+ mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
+
+ if (ucast_err || mcast_err)
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ }
+
+ if (!mcast_err) {
+ if (allmulti &&
+ !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
+ dev_info(dev, "VF %u successfully set multicast promiscuous mode\n",
+ vf->vf_id);
+ else if (!allmulti &&
+ test_and_clear_bit(ICE_VF_STATE_MC_PROMISC,
+ vf->vf_states))
+ dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n",
+ vf->vf_id);
+ } else {
+ dev_err(dev, "Error while modifying multicast promiscuous mode for VF %u, error: %d\n",
+ vf->vf_id, mcast_err);
+ }
+
+ if (!ucast_err) {
+ if (alluni &&
+ !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
+ dev_info(dev, "VF %u successfully set unicast promiscuous mode\n",
+ vf->vf_id);
+ else if (!alluni &&
+ test_and_clear_bit(ICE_VF_STATE_UC_PROMISC,
+ vf->vf_states))
+ dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n",
+ vf->vf_id);
+ } else {
+ dev_err(dev, "Error while modifying unicast promiscuous mode for VF %u, error: %d\n",
+ vf->vf_id, ucast_err);
+ }
+
+error_param:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_get_stats_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to get VSI stats
+ */
+static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_queue_select *vqs =
+ (struct virtchnl_queue_select *)msg;
+ struct ice_eth_stats stats = { 0 };
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ ice_update_eth_stats(vsi);
+
+ stats = vsi->eth_stats;
+
+error_param:
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, v_ret,
+ (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_RSS_QS_PER_VF) ||
+ vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF))
+ return false;
+
+ return true;
+}
+
+/**
+ * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL
+ * @vsi: VSI of the VF to configure
+ * @q_idx: VF queue index used to determine the queue in the PF's space
+ */
+static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx)
+{
+ struct ice_hw *hw = &vsi->back->hw;
+ u32 pfq = vsi->txq_map[q_idx];
+ u32 reg;
+
+ reg = rd32(hw, QINT_TQCTL(pfq));
+
+ /* MSI-X index 0 in the VF's space is always for the OICR, which means
+ * this is most likely a poll mode VF driver, so don't enable an
+ * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
+ */
+ if (!(reg & QINT_TQCTL_MSIX_INDX_M))
+ return;
+
+ wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M);
+}
+
+/**
+ * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL
+ * @vsi: VSI of the VF to configure
+ * @q_idx: VF queue index used to determine the queue in the PF's space
+ */
+static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx)
+{
+ struct ice_hw *hw = &vsi->back->hw;
+ u32 pfq = vsi->rxq_map[q_idx];
+ u32 reg;
+
+ reg = rd32(hw, QINT_RQCTL(pfq));
+
+ /* MSI-X index 0 in the VF's space is always for the OICR, which means
+ * this is most likely a poll mode VF driver, so don't enable an
+ * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
+ */
+ if (!(reg & QINT_RQCTL_MSIX_INDX_M))
+ return;
+
+ wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M);
+}
+
+/**
+ * ice_vc_ena_qs_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to enable all or specific queue(s)
+ */
+static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_queue_select *vqs =
+ (struct virtchnl_queue_select *)msg;
+ struct ice_vsi *vsi;
+ unsigned long q_map;
+ u16 vf_q_id;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_validate_vqs_bitmaps(vqs)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* Enable only Rx rings, Tx rings were enabled by the FW when the
+ * Tx queue group list was configured and the context bits were
+ * programmed using ice_vsi_cfg_txqs
+ */
+ q_map = vqs->rx_queues;
+ for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
+ if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* Skip queue if enabled */
+ if (test_bit(vf_q_id, vf->rxq_ena))
+ continue;
+
+ 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;
+ goto error_param;
+ }
+
+ ice_vf_ena_rxq_interrupt(vsi, vf_q_id);
+ set_bit(vf_q_id, vf->rxq_ena);
+ }
+
+ q_map = vqs->tx_queues;
+ for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
+ if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* Skip queue if enabled */
+ if (test_bit(vf_q_id, vf->txq_ena))
+ continue;
+
+ ice_vf_ena_txq_interrupt(vsi, vf_q_id);
+ set_bit(vf_q_id, vf->txq_ena);
+ }
+
+ /* Set flag to indicate that queues are enabled */
+ if (v_ret == VIRTCHNL_STATUS_SUCCESS)
+ set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
+
+error_param:
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret,
+ NULL, 0);
+}
+
+/**
+ * ice_vf_vsi_dis_single_txq - disable a single Tx queue
+ * @vf: VF to disable queue for
+ * @vsi: VSI for the VF
+ * @q_id: VF relative (0-based) queue ID
+ *
+ * Attempt to disable the Tx queue passed in. If the Tx queue was successfully
+ * disabled then clear q_id bit in the enabled queues bitmap and return
+ * success. Otherwise return error.
+ */
+static int
+ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id)
+{
+ struct ice_txq_meta txq_meta = { 0 };
+ struct ice_tx_ring *ring;
+ int err;
+
+ if (!test_bit(q_id, vf->txq_ena))
+ dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n",
+ q_id, vsi->vsi_num);
+
+ ring = vsi->tx_rings[q_id];
+ if (!ring)
+ return -EINVAL;
+
+ ice_fill_txq_meta(vsi, ring, &txq_meta);
+
+ err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta);
+ if (err) {
+ dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
+ q_id, vsi->vsi_num);
+ return err;
+ }
+
+ /* Clear enabled queues flag */
+ clear_bit(q_id, vf->txq_ena);
+
+ return 0;
+}
+
+/**
+ * ice_vc_dis_qs_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to disable all or specific queue(s)
+ */
+static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_queue_select *vqs =
+ (struct virtchnl_queue_select *)msg;
+ struct ice_vsi *vsi;
+ unsigned long q_map;
+ u16 vf_q_id;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) &&
+ !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_validate_vqs_bitmaps(vqs)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (vqs->tx_queues) {
+ q_map = vqs->tx_queues;
+
+ for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
+ if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+ }
+ }
+
+ 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_RSS_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_RSS_QS_PER_VF);
+ } else if (q_map) {
+ for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
+ if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* Skip queue if not enabled */
+ if (!test_bit(vf_q_id, vf->rxq_ena))
+ continue;
+
+ 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;
+ goto error_param;
+ }
+
+ /* Clear enabled queues flag */
+ clear_bit(vf_q_id, vf->rxq_ena);
+ }
+ }
+
+ /* Clear enabled queues flag */
+ 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:
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret,
+ NULL, 0);
+}
+
+/**
+ * ice_cfg_interrupt
+ * @vf: pointer to the VF info
+ * @vsi: the VSI being configured
+ * @vector_id: vector ID
+ * @map: vector map for mapping vectors to queues
+ * @q_vector: structure for interrupt vector
+ * configure the IRQ to queue map
+ */
+static int
+ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
+ struct virtchnl_vector_map *map,
+ struct ice_q_vector *q_vector)
+{
+ u16 vsi_q_id, vsi_q_id_idx;
+ unsigned long qmap;
+
+ q_vector->num_ring_rx = 0;
+ q_vector->num_ring_tx = 0;
+
+ qmap = map->rxq_map;
+ for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
+ vsi_q_id = vsi_q_id_idx;
+
+ if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
+ return VIRTCHNL_STATUS_ERR_PARAM;
+
+ q_vector->num_ring_rx++;
+ q_vector->rx.itr_idx = map->rxitr_idx;
+ vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
+ ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
+ q_vector->rx.itr_idx);
+ }
+
+ qmap = map->txq_map;
+ for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
+ vsi_q_id = vsi_q_id_idx;
+
+ if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
+ return VIRTCHNL_STATUS_ERR_PARAM;
+
+ q_vector->num_ring_tx++;
+ q_vector->tx.itr_idx = map->txitr_idx;
+ vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
+ ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
+ q_vector->tx.itr_idx);
+ }
+
+ return VIRTCHNL_STATUS_SUCCESS;
+}
+
+/**
+ * ice_vc_cfg_irq_map_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to configure the IRQ to queue map
+ */
+static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ u16 num_q_vectors_mapped, vsi_id, vector_id;
+ struct virtchnl_irq_map_info *irqmap_info;
+ struct virtchnl_vector_map *map;
+ struct ice_pf *pf = vf->pf;
+ struct ice_vsi *vsi;
+ int i;
+
+ irqmap_info = (struct virtchnl_irq_map_info *)msg;
+ num_q_vectors_mapped = irqmap_info->num_vectors;
+
+ /* Check to make sure number of VF vectors mapped is not greater than
+ * number of VF vectors originally allocated, and check that
+ * there is actually at least a single VF queue vector mapped
+ */
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
+ pf->vfs.num_msix_per < num_q_vectors_mapped ||
+ !num_q_vectors_mapped) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ for (i = 0; i < num_q_vectors_mapped; i++) {
+ struct ice_q_vector *q_vector;
+
+ map = &irqmap_info->vecmap[i];
+
+ vector_id = map->vector_id;
+ vsi_id = map->vsi_id;
+ /* vector_id is always 0-based for each VF, and can never be
+ * larger than or equal to the max allowed interrupts per VF
+ */
+ if (!(vector_id < pf->vfs.num_msix_per) ||
+ !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
+ (!vector_id && (map->rxq_map || map->txq_map))) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* No need to map VF miscellaneous or rogue vector */
+ if (!vector_id)
+ continue;
+
+ /* Subtract non queue vector from vector_id passed by VF
+ * to get actual number of VSI queue vector array index
+ */
+ q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF];
+ if (!q_vector) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* lookout for the invalid queue index */
+ v_ret = (enum virtchnl_status_code)
+ ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
+ if (v_ret)
+ goto error_param;
+ }
+
+error_param:
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_ret,
+ NULL, 0);
+}
+
+/**
+ * ice_vc_cfg_qs_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * called from the VF to configure the Rx/Tx queues
+ */
+static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
+{
+ struct virtchnl_vsi_queue_config_info *qci =
+ (struct virtchnl_vsi_queue_config_info *)msg;
+ struct virtchnl_queue_pair_info *qpi;
+ struct ice_pf *pf = vf->pf;
+ struct ice_vsi *vsi;
+ int i = -1, q_idx;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
+ goto error_param;
+
+ if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id))
+ goto error_param;
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi)
+ goto error_param;
+
+ if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF ||
+ qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) {
+ dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n",
+ vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq));
+ goto error_param;
+ }
+
+ for (i = 0; i < qci->num_queue_pairs; i++) {
+ qpi = &qci->qpair[i];
+ if (qpi->txq.vsi_id != qci->vsi_id ||
+ qpi->rxq.vsi_id != qci->vsi_id ||
+ qpi->rxq.queue_id != qpi->txq.queue_id ||
+ qpi->txq.headwb_enabled ||
+ !ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
+ !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
+ !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
+ goto error_param;
+ }
+
+ q_idx = qpi->rxq.queue_id;
+
+ /* make sure selected "q_idx" is in valid range of queues
+ * for selected "vsi"
+ */
+ if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) {
+ goto error_param;
+ }
+
+ /* copy Tx queue info from VF into VSI */
+ if (qpi->txq.ring_len > 0) {
+ vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
+ vsi->tx_rings[i]->count = qpi->txq.ring_len;
+
+ /* Disable any existing queue first */
+ if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx))
+ goto error_param;
+
+ /* Configure a queue with the requested settings */
+ if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
+ dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure TX queue %d\n",
+ vf->vf_id, i);
+ goto error_param;
+ }
+ }
+
+ /* copy Rx queue info from VF into VSI */
+ if (qpi->rxq.ring_len > 0) {
+ u16 max_frame_size = ice_vc_get_max_frame_size(vf);
+
+ vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
+ vsi->rx_rings[i]->count = qpi->rxq.ring_len;
+
+ if (qpi->rxq.databuffer_size != 0 &&
+ (qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
+ qpi->rxq.databuffer_size < 1024))
+ goto error_param;
+ vsi->rx_buf_len = qpi->rxq.databuffer_size;
+ vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len;
+ if (qpi->rxq.max_pkt_size > max_frame_size ||
+ qpi->rxq.max_pkt_size < 64)
+ goto error_param;
+
+ vsi->max_frame = qpi->rxq.max_pkt_size;
+ /* add space for the port VLAN since the VF driver is
+ * not expected to account for it in the MTU
+ * calculation
+ */
+ if (ice_vf_is_port_vlan_ena(vf))
+ vsi->max_frame += VLAN_HLEN;
+
+ if (ice_vsi_cfg_single_rxq(vsi, q_idx)) {
+ dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure RX queue %d\n",
+ vf->vf_id, i);
+ goto error_param;
+ }
+ }
+ }
+
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
+ VIRTCHNL_STATUS_SUCCESS, NULL, 0);
+error_param:
+ /* disable whatever we can */
+ for (; i >= 0; i--) {
+ if (ice_vsi_ctrl_one_rx_ring(vsi, false, i, true))
+ dev_err(ice_pf_to_dev(pf), "VF-%d could not disable RX queue %d\n",
+ vf->vf_id, i);
+ if (ice_vf_vsi_dis_single_txq(vf, vsi, i))
+ dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n",
+ vf->vf_id, i);
+ }
+
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
+ VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);
+}
+
+/**
+ * ice_can_vf_change_mac
+ * @vf: pointer to the VF info
+ *
+ * Return true if the VF is allowed to change its MAC filters, false otherwise
+ */
+static bool ice_can_vf_change_mac(struct ice_vf *vf)
+{
+ /* If the VF MAC address has been set administratively (via the
+ * ndo_set_vf_mac command), then deny permission to the VF to
+ * add/delete unicast MAC addresses, unless the VF is trusted
+ */
+ if (vf->pf_set_mac && !ice_is_vf_trusted(vf))
+ return false;
+
+ return true;
+}
+
+/**
+ * ice_vc_ether_addr_type - get type of virtchnl_ether_addr
+ * @vc_ether_addr: used to extract the type
+ */
+static u8
+ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
+{
+ return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK);
+}
+
+/**
+ * ice_is_vc_addr_legacy - check if the MAC address is from an older VF
+ * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
+ */
+static bool
+ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
+{
+ u8 type = ice_vc_ether_addr_type(vc_ether_addr);
+
+ return (type == VIRTCHNL_ETHER_ADDR_LEGACY);
+}
+
+/**
+ * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC
+ * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
+ *
+ * This function should only be called when the MAC address in
+ * virtchnl_ether_addr is a valid unicast MAC
+ */
+static bool
+ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr)
+{
+ u8 type = ice_vc_ether_addr_type(vc_ether_addr);
+
+ return (type == VIRTCHNL_ETHER_ADDR_PRIMARY);
+}
+
+/**
+ * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed
+ * @vf: VF to update
+ * @vc_ether_addr: structure from VIRTCHNL with MAC to add
+ */
+static void
+ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
+{
+ u8 *mac_addr = vc_ether_addr->addr;
+
+ if (!is_valid_ether_addr(mac_addr))
+ return;
+
+ /* only allow legacy VF drivers to set the device and hardware MAC if it
+ * is zero and allow new VF drivers to set the hardware MAC if the type
+ * was correctly specified over VIRTCHNL
+ */
+ if ((ice_is_vc_addr_legacy(vc_ether_addr) &&
+ is_zero_ether_addr(vf->hw_lan_addr.addr)) ||
+ ice_is_vc_addr_primary(vc_ether_addr)) {
+ ether_addr_copy(vf->dev_lan_addr.addr, mac_addr);
+ ether_addr_copy(vf->hw_lan_addr.addr, mac_addr);
+ }
+
+ /* hardware and device MACs are already set, but its possible that the
+ * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the
+ * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it
+ * away for the legacy VF driver case as it will be updated in the
+ * delete flow for this case
+ */
+ if (ice_is_vc_addr_legacy(vc_ether_addr)) {
+ ether_addr_copy(vf->legacy_last_added_umac.addr,
+ mac_addr);
+ vf->legacy_last_added_umac.time_modified = jiffies;
+ }
+}
+
+/**
+ * ice_vc_add_mac_addr - attempt to add the MAC address passed in
+ * @vf: pointer to the VF info
+ * @vsi: pointer to the VF's VSI
+ * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC
+ */
+static int
+ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
+ struct virtchnl_ether_addr *vc_ether_addr)
+{
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ u8 *mac_addr = vc_ether_addr->addr;
+ int ret;
+
+ /* device MAC already added */
+ if (ether_addr_equal(mac_addr, vf->dev_lan_addr.addr))
+ return 0;
+
+ if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
+ dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
+ return -EPERM;
+ }
+
+ ret = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
+ if (ret == -EEXIST) {
+ dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr,
+ vf->vf_id);
+ /* don't return since we might need to update
+ * the primary MAC in ice_vfhw_mac_add() below
+ */
+ } else if (ret) {
+ dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %d\n",
+ mac_addr, vf->vf_id, ret);
+ return ret;
+ } else {
+ vf->num_mac++;
+ }
+
+ ice_vfhw_mac_add(vf, vc_ether_addr);
+
+ return ret;
+}
+
+/**
+ * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired
+ * @last_added_umac: structure used to check expiration
+ */
+static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac)
+{
+#define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME msecs_to_jiffies(3000)
+ return time_is_before_jiffies(last_added_umac->time_modified +
+ ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME);
+}
+
+/**
+ * ice_update_legacy_cached_mac - update cached hardware MAC for legacy VF
+ * @vf: VF to update
+ * @vc_ether_addr: structure from VIRTCHNL with MAC to check
+ *
+ * only update cached hardware MAC for legacy VF drivers on delete
+ * because we cannot guarantee order/type of MAC from the VF driver
+ */
+static void
+ice_update_legacy_cached_mac(struct ice_vf *vf,
+ struct virtchnl_ether_addr *vc_ether_addr)
+{
+ if (!ice_is_vc_addr_legacy(vc_ether_addr) ||
+ ice_is_legacy_umac_expired(&vf->legacy_last_added_umac))
+ return;
+
+ ether_addr_copy(vf->dev_lan_addr.addr, vf->legacy_last_added_umac.addr);
+ ether_addr_copy(vf->hw_lan_addr.addr, vf->legacy_last_added_umac.addr);
+}
+
+/**
+ * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed
+ * @vf: VF to update
+ * @vc_ether_addr: structure from VIRTCHNL with MAC to delete
+ */
+static void
+ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
+{
+ u8 *mac_addr = vc_ether_addr->addr;
+
+ if (!is_valid_ether_addr(mac_addr) ||
+ !ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
+ return;
+
+ /* allow the device MAC to be repopulated in the add flow and don't
+ * clear the hardware MAC (i.e. hw_lan_addr.addr) here as that is meant
+ * to be persistent on VM reboot and across driver unload/load, which
+ * won't work if we clear the hardware MAC here
+ */
+ eth_zero_addr(vf->dev_lan_addr.addr);
+
+ ice_update_legacy_cached_mac(vf, vc_ether_addr);
+}
+
+/**
+ * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
+ * @vf: pointer to the VF info
+ * @vsi: pointer to the VF's VSI
+ * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC
+ */
+static int
+ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
+ struct virtchnl_ether_addr *vc_ether_addr)
+{
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ u8 *mac_addr = vc_ether_addr->addr;
+ int status;
+
+ if (!ice_can_vf_change_mac(vf) &&
+ ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
+ return 0;
+
+ status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
+ if (status == -ENOENT) {
+ dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr,
+ vf->vf_id);
+ return -ENOENT;
+ } else if (status) {
+ dev_err(dev, "Failed to delete MAC %pM for VF %d, error %d\n",
+ mac_addr, vf->vf_id, status);
+ return -EIO;
+ }
+
+ ice_vfhw_mac_del(vf, vc_ether_addr);
+
+ vf->num_mac--;
+
+ return 0;
+}
+
+/**
+ * ice_vc_handle_mac_addr_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ * @set: true if MAC filters are being set, false otherwise
+ *
+ * add guest MAC address filter
+ */
+static int
+ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
+{
+ int (*ice_vc_cfg_mac)
+ (struct ice_vf *vf, struct ice_vsi *vsi,
+ struct virtchnl_ether_addr *virtchnl_ether_addr);
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_ether_addr_list *al =
+ (struct virtchnl_ether_addr_list *)msg;
+ struct ice_pf *pf = vf->pf;
+ enum virtchnl_ops vc_op;
+ struct ice_vsi *vsi;
+ int i;
+
+ if (set) {
+ vc_op = VIRTCHNL_OP_ADD_ETH_ADDR;
+ ice_vc_cfg_mac = ice_vc_add_mac_addr;
+ } else {
+ vc_op = VIRTCHNL_OP_DEL_ETH_ADDR;
+ ice_vc_cfg_mac = ice_vc_del_mac_addr;
+ }
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
+ !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto handle_mac_exit;
+ }
+
+ /* If this VF is not privileged, then we can't add more than a
+ * limited number of addresses. Check to make sure that the
+ * additions do not push us over the limit.
+ */
+ if (set && !ice_is_vf_trusted(vf) &&
+ (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) {
+ dev_err(ice_pf_to_dev(pf), "Can't add more MAC addresses, because VF-%d is not trusted, switch the VF to trusted mode in order to add more functionalities\n",
+ vf->vf_id);
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto handle_mac_exit;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto handle_mac_exit;
+ }
+
+ for (i = 0; i < al->num_elements; i++) {
+ u8 *mac_addr = al->list[i].addr;
+ int result;
+
+ if (is_broadcast_ether_addr(mac_addr) ||
+ is_zero_ether_addr(mac_addr))
+ continue;
+
+ result = ice_vc_cfg_mac(vf, vsi, &al->list[i]);
+ if (result == -EEXIST || result == -ENOENT) {
+ continue;
+ } else if (result) {
+ v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
+ goto handle_mac_exit;
+ }
+ }
+
+handle_mac_exit:
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_add_mac_addr_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * add guest MAC address filter
+ */
+static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg)
+{
+ return ice_vc_handle_mac_addr_msg(vf, msg, true);
+}
+
+/**
+ * ice_vc_del_mac_addr_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * remove guest MAC address filter
+ */
+static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg)
+{
+ return ice_vc_handle_mac_addr_msg(vf, msg, false);
+}
+
+/**
+ * ice_vc_request_qs_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * VFs get a default number of queues but can use this message to request a
+ * different number. If the request is successful, PF will reset the VF and
+ * return 0. If unsuccessful, PF will send message informing VF of number of
+ * available queue pairs via virtchnl message response to VF.
+ */
+static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vf_res_request *vfres =
+ (struct virtchnl_vf_res_request *)msg;
+ u16 req_queues = vfres->num_queue_pairs;
+ struct ice_pf *pf = vf->pf;
+ u16 max_allowed_vf_queues;
+ u16 tx_rx_queue_left;
+ struct device *dev;
+ u16 cur_queues;
+
+ dev = ice_pf_to_dev(pf);
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ cur_queues = vf->num_vf_qs;
+ tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf),
+ ice_get_avail_rxq_count(pf));
+ max_allowed_vf_queues = tx_rx_queue_left + cur_queues;
+ if (!req_queues) {
+ dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n",
+ vf->vf_id);
+ } else if (req_queues > ICE_MAX_RSS_QS_PER_VF) {
+ dev_err(dev, "VF %d tried to request more than %d queues.\n",
+ vf->vf_id, ICE_MAX_RSS_QS_PER_VF);
+ vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF;
+ } else if (req_queues > cur_queues &&
+ req_queues - cur_queues > tx_rx_queue_left) {
+ dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n",
+ vf->vf_id, req_queues - cur_queues, tx_rx_queue_left);
+ vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues,
+ ICE_MAX_RSS_QS_PER_VF);
+ } else {
+ /* request is successful, then reset VF */
+ vf->num_req_qs = req_queues;
+ ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
+ dev_info(dev, "VF %d granted request of %u queues.\n",
+ vf->vf_id, req_queues);
+ return 0;
+ }
+
+error_param:
+ /* send the response to the VF */
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES,
+ v_ret, (u8 *)vfres, sizeof(*vfres));
+}
+
+/**
+ * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
+ * @caps: VF driver negotiated capabilities
+ *
+ * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
+ */
+static bool ice_vf_vlan_offload_ena(u32 caps)
+{
+ return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
+}
+
+/**
+ * ice_is_vlan_promisc_allowed - check if VLAN promiscuous config is allowed
+ * @vf: VF used to determine if VLAN promiscuous config is allowed
+ */
+static bool ice_is_vlan_promisc_allowed(struct ice_vf *vf)
+{
+ if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
+ test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) &&
+ test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, vf->pf->flags))
+ return true;
+
+ return false;
+}
+
+/**
+ * ice_vf_ena_vlan_promisc - Enable Tx/Rx VLAN promiscuous for the VLAN
+ * @vsi: VF's VSI used to enable VLAN promiscuous mode
+ * @vlan: VLAN used to enable VLAN promiscuous
+ *
+ * This function should only be called if VLAN promiscuous mode is allowed,
+ * which can be determined via ice_is_vlan_promisc_allowed().
+ */
+static int ice_vf_ena_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
+{
+ u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
+ int status;
+
+ status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
+ vlan->vid);
+ if (status && status != -EEXIST)
+ return status;
+
+ return 0;
+}
+
+/**
+ * ice_vf_dis_vlan_promisc - Disable Tx/Rx VLAN promiscuous for the VLAN
+ * @vsi: VF's VSI used to disable VLAN promiscuous mode for
+ * @vlan: VLAN used to disable VLAN promiscuous
+ *
+ * This function should only be called if VLAN promiscuous mode is allowed,
+ * which can be determined via ice_is_vlan_promisc_allowed().
+ */
+static int ice_vf_dis_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
+{
+ u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
+ int status;
+
+ status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
+ vlan->vid);
+ if (status && status != -ENOENT)
+ return status;
+
+ return 0;
+}
+
+/**
+ * ice_vf_has_max_vlans - check if VF already has the max allowed VLAN filters
+ * @vf: VF to check against
+ * @vsi: VF's VSI
+ *
+ * If the VF is trusted then the VF is allowed to add as many VLANs as it
+ * wants to, so return false.
+ *
+ * When the VF is untrusted compare the number of non-zero VLANs + 1 to the max
+ * allowed VLANs for an untrusted VF. Return the result of this comparison.
+ */
+static bool ice_vf_has_max_vlans(struct ice_vf *vf, struct ice_vsi *vsi)
+{
+ if (ice_is_vf_trusted(vf))
+ return false;
+
+#define ICE_VF_ADDED_VLAN_ZERO_FLTRS 1
+ return ((ice_vsi_num_non_zero_vlans(vsi) +
+ ICE_VF_ADDED_VLAN_ZERO_FLTRS) >= ICE_MAX_VLAN_PER_VF);
+}
+
+/**
+ * ice_vc_process_vlan_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ * @add_v: Add VLAN if true, otherwise delete VLAN
+ *
+ * Process virtchnl op to add or remove programmed guest VLAN ID
+ */
+static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_filter_list *vfl =
+ (struct virtchnl_vlan_filter_list *)msg;
+ struct ice_pf *pf = vf->pf;
+ bool vlan_promisc = false;
+ struct ice_vsi *vsi;
+ struct device *dev;
+ int status = 0;
+ int i;
+
+ dev = ice_pf_to_dev(pf);
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ for (i = 0; i < vfl->num_elements; i++) {
+ 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]);
+ goto error_param;
+ }
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (add_v && ice_vf_has_max_vlans(vf, vsi)) {
+ dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
+ vf->vf_id);
+ /* There is no need to let VF know about being not trusted,
+ * so we can just return success message here
+ */
+ goto error_param;
+ }
+
+ /* in DVM a VF can add/delete inner VLAN filters when
+ * VIRTCHNL_VF_OFFLOAD_VLAN is negotiated, so only reject in SVM
+ */
+ if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&pf->hw)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* in DVM VLAN promiscuous is based on the outer VLAN, which would be
+ * the port VLAN if VIRTCHNL_VF_OFFLOAD_VLAN was negotiated, so only
+ * allow vlan_promisc = true in SVM and if no port VLAN is configured
+ */
+ vlan_promisc = ice_is_vlan_promisc_allowed(vf) &&
+ !ice_is_dvm_ena(&pf->hw) &&
+ !ice_vf_is_port_vlan_ena(vf);
+
+ if (add_v) {
+ for (i = 0; i < vfl->num_elements; i++) {
+ u16 vid = vfl->vlan_id[i];
+ struct ice_vlan vlan;
+
+ if (ice_vf_has_max_vlans(vf, vsi)) {
+ dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
+ vf->vf_id);
+ /* There is no need to let VF know about being
+ * not trusted, so we can just return success
+ * message here as well.
+ */
+ goto error_param;
+ }
+
+ /* we add VLAN 0 by default for each VF so we can enable
+ * Tx VLAN anti-spoof without triggering MDD events so
+ * we don't need to add it again here
+ */
+ if (!vid)
+ continue;
+
+ vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
+ status = vsi->inner_vlan_ops.add_vlan(vsi, &vlan);
+ if (status) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* Enable VLAN filtering on first non-zero VLAN */
+ if (!vlan_promisc && vid && !ice_is_dvm_ena(&pf->hw)) {
+ if (vf->spoofchk) {
+ status = vsi->inner_vlan_ops.ena_tx_filtering(vsi);
+ if (status) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ dev_err(dev, "Enable VLAN anti-spoofing on VLAN ID: %d failed error-%d\n",
+ vid, status);
+ goto error_param;
+ }
+ }
+ if (vsi->inner_vlan_ops.ena_rx_filtering(vsi)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n",
+ vid, status);
+ goto error_param;
+ }
+ } else if (vlan_promisc) {
+ status = ice_vf_ena_vlan_promisc(vsi, &vlan);
+ if (status) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n",
+ vid, status);
+ }
+ }
+ }
+ } else {
+ /* In case of non_trusted VF, number of VLAN elements passed
+ * to PF for removal might be greater than number of VLANs
+ * filter programmed for that VF - So, use actual number of
+ * VLANS added earlier with add VLAN opcode. In order to avoid
+ * removing VLAN that doesn't exist, which result to sending
+ * erroneous failed message back to the VF
+ */
+ int num_vf_vlan;
+
+ num_vf_vlan = vsi->num_vlan;
+ for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) {
+ u16 vid = vfl->vlan_id[i];
+ struct ice_vlan vlan;
+
+ /* we add VLAN 0 by default for each VF so we can enable
+ * Tx VLAN anti-spoof without triggering MDD events so
+ * we don't want a VIRTCHNL request to remove it
+ */
+ if (!vid)
+ continue;
+
+ vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
+ status = vsi->inner_vlan_ops.del_vlan(vsi, &vlan);
+ if (status) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ /* Disable VLAN filtering when only VLAN 0 is left */
+ if (!ice_vsi_has_non_zero_vlans(vsi)) {
+ vsi->inner_vlan_ops.dis_tx_filtering(vsi);
+ vsi->inner_vlan_ops.dis_rx_filtering(vsi);
+ }
+
+ if (vlan_promisc)
+ ice_vf_dis_vlan_promisc(vsi, &vlan);
+ }
+ }
+
+error_param:
+ /* send the response to the VF */
+ if (add_v)
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret,
+ NULL, 0);
+ else
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_ret,
+ NULL, 0);
+}
+
+/**
+ * ice_vc_add_vlan_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * Add and program guest VLAN ID
+ */
+static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg)
+{
+ return ice_vc_process_vlan_msg(vf, msg, true);
+}
+
+/**
+ * ice_vc_remove_vlan_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ *
+ * remove programmed guest VLAN ID
+ */
+static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg)
+{
+ return ice_vc_process_vlan_msg(vf, msg, false);
+}
+
+/**
+ * ice_vc_ena_vlan_stripping
+ * @vf: pointer to the VF info
+ *
+ * Enable VLAN header stripping for a given VF
+ */
+static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q))
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+
+error_param:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_dis_vlan_stripping
+ * @vf: pointer to the VF info
+ *
+ * Disable VLAN header stripping for a given VF
+ */
+static int ice_vc_dis_vlan_stripping(struct ice_vf *vf)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto error_param;
+ }
+
+ if (vsi->inner_vlan_ops.dis_stripping(vsi))
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+
+error_param:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization
+ * @vf: VF to enable/disable VLAN stripping for on initialization
+ *
+ * Set the default for VLAN stripping based on whether a port VLAN is configured
+ * and the current VLAN mode of the device.
+ */
+static int ice_vf_init_vlan_stripping(struct ice_vf *vf)
+{
+ struct ice_vsi *vsi = ice_get_vf_vsi(vf);
+
+ if (!vsi)
+ return -EINVAL;
+
+ /* don't modify stripping if port VLAN is configured in SVM since the
+ * port VLAN is based on the inner/single VLAN in SVM
+ */
+ if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&vsi->back->hw))
+ return 0;
+
+ if (ice_vf_vlan_offload_ena(vf->driver_caps))
+ return vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q);
+ else
+ return vsi->inner_vlan_ops.dis_stripping(vsi);
+}
+
+static u16 ice_vc_get_max_vlan_fltrs(struct ice_vf *vf)
+{
+ if (vf->trusted)
+ return VLAN_N_VID;
+ else
+ return ICE_MAX_VLAN_PER_VF;
+}
+
+/**
+ * ice_vf_outer_vlan_not_allowed - check if outer VLAN can be used
+ * @vf: VF that being checked for
+ *
+ * When the device is in double VLAN mode, check whether or not the outer VLAN
+ * is allowed.
+ */
+static bool ice_vf_outer_vlan_not_allowed(struct ice_vf *vf)
+{
+ if (ice_vf_is_port_vlan_ena(vf))
+ return true;
+
+ return false;
+}
+
+/**
+ * ice_vc_set_dvm_caps - set VLAN capabilities when the device is in DVM
+ * @vf: VF that capabilities are being set for
+ * @caps: VLAN capabilities to populate
+ *
+ * Determine VLAN capabilities support based on whether a port VLAN is
+ * configured. If a port VLAN is configured then the VF should use the inner
+ * filtering/offload capabilities since the port VLAN is using the outer VLAN
+ * capabilies.
+ */
+static void
+ice_vc_set_dvm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
+{
+ struct virtchnl_vlan_supported_caps *supported_caps;
+
+ if (ice_vf_outer_vlan_not_allowed(vf)) {
+ /* until support for inner VLAN filtering is added when a port
+ * VLAN is configured, only support software offloaded inner
+ * VLANs when a port VLAN is confgured in DVM
+ */
+ supported_caps = &caps->filtering.filtering_support;
+ supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ supported_caps = &caps->offloads.stripping_support;
+ supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ supported_caps = &caps->offloads.insertion_support;
+ supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
+ caps->offloads.ethertype_match =
+ VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
+ } else {
+ supported_caps = &caps->filtering.filtering_support;
+ supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
+ supported_caps->outer = VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_ETHERTYPE_88A8 |
+ VIRTCHNL_VLAN_ETHERTYPE_9100 |
+ VIRTCHNL_VLAN_ETHERTYPE_AND;
+ caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_ETHERTYPE_88A8 |
+ VIRTCHNL_VLAN_ETHERTYPE_9100;
+
+ supported_caps = &caps->offloads.stripping_support;
+ supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
+ supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_ETHERTYPE_88A8 |
+ VIRTCHNL_VLAN_ETHERTYPE_9100 |
+ VIRTCHNL_VLAN_ETHERTYPE_XOR |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2;
+
+ supported_caps = &caps->offloads.insertion_support;
+ supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
+ supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_ETHERTYPE_88A8 |
+ VIRTCHNL_VLAN_ETHERTYPE_9100 |
+ VIRTCHNL_VLAN_ETHERTYPE_XOR |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2;
+
+ caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
+
+ caps->offloads.ethertype_match =
+ VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
+ }
+
+ caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
+}
+
+/**
+ * ice_vc_set_svm_caps - set VLAN capabilities when the device is in SVM
+ * @vf: VF that capabilities are being set for
+ * @caps: VLAN capabilities to populate
+ *
+ * Determine VLAN capabilities support based on whether a port VLAN is
+ * configured. If a port VLAN is configured then the VF does not have any VLAN
+ * filtering or offload capabilities since the port VLAN is using the inner VLAN
+ * capabilities in single VLAN mode (SVM). Otherwise allow the VF to use inner
+ * VLAN fitlering and offload capabilities.
+ */
+static void
+ice_vc_set_svm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
+{
+ struct virtchnl_vlan_supported_caps *supported_caps;
+
+ if (ice_vf_is_port_vlan_ena(vf)) {
+ supported_caps = &caps->filtering.filtering_support;
+ supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ supported_caps = &caps->offloads.stripping_support;
+ supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ supported_caps = &caps->offloads.insertion_support;
+ supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ caps->offloads.ethertype_init = VIRTCHNL_VLAN_UNSUPPORTED;
+ caps->offloads.ethertype_match = VIRTCHNL_VLAN_UNSUPPORTED;
+ caps->filtering.max_filters = 0;
+ } else {
+ supported_caps = &caps->filtering.filtering_support;
+ supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+ caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
+
+ supported_caps = &caps->offloads.stripping_support;
+ supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ supported_caps = &caps->offloads.insertion_support;
+ supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
+ VIRTCHNL_VLAN_TOGGLE |
+ VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
+ supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
+ caps->offloads.ethertype_match =
+ VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
+ caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
+ }
+}
+
+/**
+ * ice_vc_get_offload_vlan_v2_caps - determine VF's VLAN capabilities
+ * @vf: VF to determine VLAN capabilities for
+ *
+ * This will only be called if the VF and PF successfully negotiated
+ * VIRTCHNL_VF_OFFLOAD_VLAN_V2.
+ *
+ * Set VLAN capabilities based on the current VLAN mode and whether a port VLAN
+ * is configured or not.
+ */
+static int ice_vc_get_offload_vlan_v2_caps(struct ice_vf *vf)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_caps *caps = NULL;
+ int err, len = 0;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ caps = kzalloc(sizeof(*caps), GFP_KERNEL);
+ if (!caps) {
+ v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
+ goto out;
+ }
+ len = sizeof(*caps);
+
+ if (ice_is_dvm_ena(&vf->pf->hw))
+ ice_vc_set_dvm_caps(vf, caps);
+ else
+ ice_vc_set_svm_caps(vf, caps);
+
+ /* store negotiated caps to prevent invalid VF messages */
+ memcpy(&vf->vlan_v2_caps, caps, sizeof(*caps));
+
+out:
+ err = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS,
+ v_ret, (u8 *)caps, len);
+ kfree(caps);
+ return err;
+}
+
+/**
+ * ice_vc_validate_vlan_tpid - validate VLAN TPID
+ * @filtering_caps: negotiated/supported VLAN filtering capabilities
+ * @tpid: VLAN TPID used for validation
+ *
+ * Convert the VLAN TPID to a VIRTCHNL_VLAN_ETHERTYPE_* and then compare against
+ * the negotiated/supported filtering caps to see if the VLAN TPID is valid.
+ */
+static bool ice_vc_validate_vlan_tpid(u16 filtering_caps, u16 tpid)
+{
+ enum virtchnl_vlan_support vlan_ethertype = VIRTCHNL_VLAN_UNSUPPORTED;
+
+ switch (tpid) {
+ case ETH_P_8021Q:
+ vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_8100;
+ break;
+ case ETH_P_8021AD:
+ vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_88A8;
+ break;
+ case ETH_P_QINQ1:
+ vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_9100;
+ break;
+ }
+
+ if (!(filtering_caps & vlan_ethertype))
+ return false;
+
+ return true;
+}
+
+/**
+ * ice_vc_is_valid_vlan - validate the virtchnl_vlan
+ * @vc_vlan: virtchnl_vlan to validate
+ *
+ * If the VLAN TCI and VLAN TPID are 0, then this filter is invalid, so return
+ * false. Otherwise return true.
+ */
+static bool ice_vc_is_valid_vlan(struct virtchnl_vlan *vc_vlan)
+{
+ if (!vc_vlan->tci || !vc_vlan->tpid)
+ return false;
+
+ return true;
+}
+
+/**
+ * ice_vc_validate_vlan_filter_list - validate the filter list from the VF
+ * @vfc: negotiated/supported VLAN filtering capabilities
+ * @vfl: VLAN filter list from VF to validate
+ *
+ * Validate all of the filters in the VLAN filter list from the VF. If any of
+ * the checks fail then return false. Otherwise return true.
+ */
+static bool
+ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps *vfc,
+ struct virtchnl_vlan_filter_list_v2 *vfl)
+{
+ u16 i;
+
+ if (!vfl->num_elements)
+ return false;
+
+ for (i = 0; i < vfl->num_elements; i++) {
+ struct virtchnl_vlan_supported_caps *filtering_support =
+ &vfc->filtering_support;
+ struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
+ struct virtchnl_vlan *outer = &vlan_fltr->outer;
+ struct virtchnl_vlan *inner = &vlan_fltr->inner;
+
+ if ((ice_vc_is_valid_vlan(outer) &&
+ filtering_support->outer == VIRTCHNL_VLAN_UNSUPPORTED) ||
+ (ice_vc_is_valid_vlan(inner) &&
+ filtering_support->inner == VIRTCHNL_VLAN_UNSUPPORTED))
+ return false;
+
+ if ((outer->tci_mask &&
+ !(filtering_support->outer & VIRTCHNL_VLAN_FILTER_MASK)) ||
+ (inner->tci_mask &&
+ !(filtering_support->inner & VIRTCHNL_VLAN_FILTER_MASK)))
+ return false;
+
+ if (((outer->tci & VLAN_PRIO_MASK) &&
+ !(filtering_support->outer & VIRTCHNL_VLAN_PRIO)) ||
+ ((inner->tci & VLAN_PRIO_MASK) &&
+ !(filtering_support->inner & VIRTCHNL_VLAN_PRIO)))
+ return false;
+
+ if ((ice_vc_is_valid_vlan(outer) &&
+ !ice_vc_validate_vlan_tpid(filtering_support->outer,
+ outer->tpid)) ||
+ (ice_vc_is_valid_vlan(inner) &&
+ !ice_vc_validate_vlan_tpid(filtering_support->inner,
+ inner->tpid)))
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * ice_vc_to_vlan - transform from struct virtchnl_vlan to struct ice_vlan
+ * @vc_vlan: struct virtchnl_vlan to transform
+ */
+static struct ice_vlan ice_vc_to_vlan(struct virtchnl_vlan *vc_vlan)
+{
+ struct ice_vlan vlan = { 0 };
+
+ vlan.prio = (vc_vlan->tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
+ vlan.vid = vc_vlan->tci & VLAN_VID_MASK;
+ vlan.tpid = vc_vlan->tpid;
+
+ return vlan;
+}
+
+/**
+ * ice_vc_vlan_action - action to perform on the virthcnl_vlan
+ * @vsi: VF's VSI used to perform the action
+ * @vlan_action: function to perform the action with (i.e. add/del)
+ * @vlan: VLAN filter to perform the action with
+ */
+static int
+ice_vc_vlan_action(struct ice_vsi *vsi,
+ int (*vlan_action)(struct ice_vsi *, struct ice_vlan *),
+ struct ice_vlan *vlan)
+{
+ int err;
+
+ err = vlan_action(vsi, vlan);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/**
+ * ice_vc_del_vlans - delete VLAN(s) from the virtchnl filter list
+ * @vf: VF used to delete the VLAN(s)
+ * @vsi: VF's VSI used to delete the VLAN(s)
+ * @vfl: virthchnl filter list used to delete the filters
+ */
+static int
+ice_vc_del_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
+ struct virtchnl_vlan_filter_list_v2 *vfl)
+{
+ bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
+ int err;
+ u16 i;
+
+ for (i = 0; i < vfl->num_elements; i++) {
+ struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
+ struct virtchnl_vlan *vc_vlan;
+
+ vc_vlan = &vlan_fltr->outer;
+ if (ice_vc_is_valid_vlan(vc_vlan)) {
+ struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
+
+ err = ice_vc_vlan_action(vsi,
+ vsi->outer_vlan_ops.del_vlan,
+ &vlan);
+ if (err)
+ return err;
+
+ if (vlan_promisc)
+ ice_vf_dis_vlan_promisc(vsi, &vlan);
+
+ /* Disable VLAN filtering when only VLAN 0 is left */
+ if (!ice_vsi_has_non_zero_vlans(vsi) && ice_is_dvm_ena(&vsi->back->hw)) {
+ err = vsi->outer_vlan_ops.dis_tx_filtering(vsi);
+ if (err)
+ return err;
+ }
+ }
+
+ vc_vlan = &vlan_fltr->inner;
+ if (ice_vc_is_valid_vlan(vc_vlan)) {
+ struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
+
+ err = ice_vc_vlan_action(vsi,
+ vsi->inner_vlan_ops.del_vlan,
+ &vlan);
+ if (err)
+ return err;
+
+ /* no support for VLAN promiscuous on inner VLAN unless
+ * we are in Single VLAN Mode (SVM)
+ */
+ if (!ice_is_dvm_ena(&vsi->back->hw)) {
+ if (vlan_promisc)
+ ice_vf_dis_vlan_promisc(vsi, &vlan);
+
+ /* Disable VLAN filtering when only VLAN 0 is left */
+ if (!ice_vsi_has_non_zero_vlans(vsi)) {
+ err = vsi->inner_vlan_ops.dis_tx_filtering(vsi);
+ if (err)
+ return err;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vc_remove_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_DEL_VLAN_V2
+ * @vf: VF the message was received from
+ * @msg: message received from the VF
+ */
+static int ice_vc_remove_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
+{
+ struct virtchnl_vlan_filter_list_v2 *vfl =
+ (struct virtchnl_vlan_filter_list_v2 *)msg;
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct ice_vsi *vsi;
+
+ if (!ice_vc_validate_vlan_filter_list(&vf->vlan_v2_caps.filtering,
+ vfl)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (ice_vc_del_vlans(vf, vsi, vfl))
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+
+out:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN_V2, v_ret, NULL,
+ 0);
+}
+
+/**
+ * ice_vc_add_vlans - add VLAN(s) from the virtchnl filter list
+ * @vf: VF used to add the VLAN(s)
+ * @vsi: VF's VSI used to add the VLAN(s)
+ * @vfl: virthchnl filter list used to add the filters
+ */
+static int
+ice_vc_add_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
+ struct virtchnl_vlan_filter_list_v2 *vfl)
+{
+ bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
+ int err;
+ u16 i;
+
+ for (i = 0; i < vfl->num_elements; i++) {
+ struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
+ struct virtchnl_vlan *vc_vlan;
+
+ vc_vlan = &vlan_fltr->outer;
+ if (ice_vc_is_valid_vlan(vc_vlan)) {
+ struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
+
+ err = ice_vc_vlan_action(vsi,
+ vsi->outer_vlan_ops.add_vlan,
+ &vlan);
+ if (err)
+ return err;
+
+ if (vlan_promisc) {
+ err = ice_vf_ena_vlan_promisc(vsi, &vlan);
+ if (err)
+ return err;
+ }
+
+ /* Enable VLAN filtering on first non-zero VLAN */
+ if (vf->spoofchk && vlan.vid && ice_is_dvm_ena(&vsi->back->hw)) {
+ err = vsi->outer_vlan_ops.ena_tx_filtering(vsi);
+ if (err)
+ return err;
+ }
+ }
+
+ vc_vlan = &vlan_fltr->inner;
+ if (ice_vc_is_valid_vlan(vc_vlan)) {
+ struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
+
+ err = ice_vc_vlan_action(vsi,
+ vsi->inner_vlan_ops.add_vlan,
+ &vlan);
+ if (err)
+ return err;
+
+ /* no support for VLAN promiscuous on inner VLAN unless
+ * we are in Single VLAN Mode (SVM)
+ */
+ if (!ice_is_dvm_ena(&vsi->back->hw)) {
+ if (vlan_promisc) {
+ err = ice_vf_ena_vlan_promisc(vsi, &vlan);
+ if (err)
+ return err;
+ }
+
+ /* Enable VLAN filtering on first non-zero VLAN */
+ if (vf->spoofchk && vlan.vid) {
+ err = vsi->inner_vlan_ops.ena_tx_filtering(vsi);
+ if (err)
+ return err;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vc_validate_add_vlan_filter_list - validate add filter list from the VF
+ * @vsi: VF VSI used to get number of existing VLAN filters
+ * @vfc: negotiated/supported VLAN filtering capabilities
+ * @vfl: VLAN filter list from VF to validate
+ *
+ * Validate all of the filters in the VLAN filter list from the VF during the
+ * VIRTCHNL_OP_ADD_VLAN_V2 opcode. If any of the checks fail then return false.
+ * Otherwise return true.
+ */
+static bool
+ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi,
+ struct virtchnl_vlan_filtering_caps *vfc,
+ struct virtchnl_vlan_filter_list_v2 *vfl)
+{
+ u16 num_requested_filters = ice_vsi_num_non_zero_vlans(vsi) +
+ vfl->num_elements;
+
+ if (num_requested_filters > vfc->max_filters)
+ return false;
+
+ return ice_vc_validate_vlan_filter_list(vfc, vfl);
+}
+
+/**
+ * ice_vc_add_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_ADD_VLAN_V2
+ * @vf: VF the message was received from
+ * @msg: message received from the VF
+ */
+static int ice_vc_add_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_filter_list_v2 *vfl =
+ (struct virtchnl_vlan_filter_list_v2 *)msg;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_validate_add_vlan_filter_list(vsi,
+ &vf->vlan_v2_caps.filtering,
+ vfl)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (ice_vc_add_vlans(vf, vsi, vfl))
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+
+out:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN_V2, v_ret, NULL,
+ 0);
+}
+
+/**
+ * ice_vc_valid_vlan_setting - validate VLAN setting
+ * @negotiated_settings: negotiated VLAN settings during VF init
+ * @ethertype_setting: ethertype(s) requested for the VLAN setting
+ */
+static bool
+ice_vc_valid_vlan_setting(u32 negotiated_settings, u32 ethertype_setting)
+{
+ if (ethertype_setting && !(negotiated_settings & ethertype_setting))
+ return false;
+
+ /* only allow a single VIRTCHNL_VLAN_ETHERTYPE if
+ * VIRTHCNL_VLAN_ETHERTYPE_AND is not negotiated/supported
+ */
+ if (!(negotiated_settings & VIRTCHNL_VLAN_ETHERTYPE_AND) &&
+ hweight32(ethertype_setting) > 1)
+ return false;
+
+ /* ability to modify the VLAN setting was not negotiated */
+ if (!(negotiated_settings & VIRTCHNL_VLAN_TOGGLE))
+ return false;
+
+ return true;
+}
+
+/**
+ * ice_vc_valid_vlan_setting_msg - validate the VLAN setting message
+ * @caps: negotiated VLAN settings during VF init
+ * @msg: message to validate
+ *
+ * Used to validate any VLAN virtchnl message sent as a
+ * virtchnl_vlan_setting structure. Validates the message against the
+ * negotiated/supported caps during VF driver init.
+ */
+static bool
+ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps *caps,
+ struct virtchnl_vlan_setting *msg)
+{
+ if ((!msg->outer_ethertype_setting &&
+ !msg->inner_ethertype_setting) ||
+ (!caps->outer && !caps->inner))
+ return false;
+
+ if (msg->outer_ethertype_setting &&
+ !ice_vc_valid_vlan_setting(caps->outer,
+ msg->outer_ethertype_setting))
+ return false;
+
+ if (msg->inner_ethertype_setting &&
+ !ice_vc_valid_vlan_setting(caps->inner,
+ msg->inner_ethertype_setting))
+ return false;
+
+ return true;
+}
+
+/**
+ * ice_vc_get_tpid - transform from VIRTCHNL_VLAN_ETHERTYPE_* to VLAN TPID
+ * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* used to get VLAN TPID
+ * @tpid: VLAN TPID to populate
+ */
+static int ice_vc_get_tpid(u32 ethertype_setting, u16 *tpid)
+{
+ switch (ethertype_setting) {
+ case VIRTCHNL_VLAN_ETHERTYPE_8100:
+ *tpid = ETH_P_8021Q;
+ break;
+ case VIRTCHNL_VLAN_ETHERTYPE_88A8:
+ *tpid = ETH_P_8021AD;
+ break;
+ case VIRTCHNL_VLAN_ETHERTYPE_9100:
+ *tpid = ETH_P_QINQ1;
+ break;
+ default:
+ *tpid = 0;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vc_ena_vlan_offload - enable VLAN offload based on the ethertype_setting
+ * @vsi: VF's VSI used to enable the VLAN offload
+ * @ena_offload: function used to enable the VLAN offload
+ * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* to enable offloads for
+ */
+static int
+ice_vc_ena_vlan_offload(struct ice_vsi *vsi,
+ int (*ena_offload)(struct ice_vsi *vsi, u16 tpid),
+ u32 ethertype_setting)
+{
+ u16 tpid;
+ int err;
+
+ err = ice_vc_get_tpid(ethertype_setting, &tpid);
+ if (err)
+ return err;
+
+ err = ena_offload(vsi, tpid);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+#define ICE_L2TSEL_QRX_CONTEXT_REG_IDX 3
+#define ICE_L2TSEL_BIT_OFFSET 23
+enum ice_l2tsel {
+ ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND,
+ ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1,
+};
+
+/**
+ * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI
+ * @vsi: VSI used to update l2tsel on
+ * @l2tsel: l2tsel setting requested
+ *
+ * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel.
+ * This will modify which descriptor field the first offloaded VLAN will be
+ * stripped into.
+ */
+static void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel)
+{
+ struct ice_hw *hw = &vsi->back->hw;
+ u32 l2tsel_bit;
+ int i;
+
+ if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND)
+ l2tsel_bit = 0;
+ else
+ l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET);
+
+ for (i = 0; i < vsi->alloc_rxq; i++) {
+ u16 pfq = vsi->rxq_map[i];
+ u32 qrx_context_offset;
+ u32 regval;
+
+ qrx_context_offset =
+ QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq);
+
+ regval = rd32(hw, qrx_context_offset);
+ regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET);
+ regval |= l2tsel_bit;
+ wr32(hw, qrx_context_offset, regval);
+ }
+}
+
+/**
+ * ice_vc_ena_vlan_stripping_v2_msg
+ * @vf: VF the message was received from
+ * @msg: message received from the VF
+ *
+ * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
+ */
+static int ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_supported_caps *stripping_support;
+ struct virtchnl_vlan_setting *strip_msg =
+ (struct virtchnl_vlan_setting *)msg;
+ u32 ethertype_setting;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
+ if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ ethertype_setting = strip_msg->outer_ethertype_setting;
+ if (ethertype_setting) {
+ if (ice_vc_ena_vlan_offload(vsi,
+ vsi->outer_vlan_ops.ena_stripping,
+ ethertype_setting)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ } else {
+ enum ice_l2tsel l2tsel =
+ ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND;
+
+ /* PF tells the VF that the outer VLAN tag is always
+ * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
+ * inner is always extracted to
+ * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
+ * support outer stripping so the first tag always ends
+ * up in L2TAG2_2ND and the second/inner tag, if
+ * enabled, is extracted in L2TAG1.
+ */
+ ice_vsi_update_l2tsel(vsi, l2tsel);
+ }
+ }
+
+ ethertype_setting = strip_msg->inner_ethertype_setting;
+ if (ethertype_setting &&
+ ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_stripping,
+ ethertype_setting)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+out:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_dis_vlan_stripping_v2_msg
+ * @vf: VF the message was received from
+ * @msg: message received from the VF
+ *
+ * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
+ */
+static int ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_supported_caps *stripping_support;
+ struct virtchnl_vlan_setting *strip_msg =
+ (struct virtchnl_vlan_setting *)msg;
+ u32 ethertype_setting;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
+ if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ ethertype_setting = strip_msg->outer_ethertype_setting;
+ if (ethertype_setting) {
+ if (vsi->outer_vlan_ops.dis_stripping(vsi)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ } else {
+ enum ice_l2tsel l2tsel =
+ ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1;
+
+ /* PF tells the VF that the outer VLAN tag is always
+ * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
+ * inner is always extracted to
+ * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
+ * support inner stripping while outer stripping is
+ * disabled so that the first and only tag is extracted
+ * in L2TAG1.
+ */
+ ice_vsi_update_l2tsel(vsi, l2tsel);
+ }
+ }
+
+ ethertype_setting = strip_msg->inner_ethertype_setting;
+ if (ethertype_setting && vsi->inner_vlan_ops.dis_stripping(vsi)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+out:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_ena_vlan_insertion_v2_msg
+ * @vf: VF the message was received from
+ * @msg: message received from the VF
+ *
+ * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
+ */
+static int ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_supported_caps *insertion_support;
+ struct virtchnl_vlan_setting *insertion_msg =
+ (struct virtchnl_vlan_setting *)msg;
+ u32 ethertype_setting;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
+ if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ ethertype_setting = insertion_msg->outer_ethertype_setting;
+ if (ethertype_setting &&
+ ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_insertion,
+ ethertype_setting)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ ethertype_setting = insertion_msg->inner_ethertype_setting;
+ if (ethertype_setting &&
+ ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_insertion,
+ ethertype_setting)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+out:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_dis_vlan_insertion_v2_msg
+ * @vf: VF the message was received from
+ * @msg: message received from the VF
+ *
+ * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
+ */
+static int ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_vlan_supported_caps *insertion_support;
+ struct virtchnl_vlan_setting *insertion_msg =
+ (struct virtchnl_vlan_setting *)msg;
+ u32 ethertype_setting;
+ struct ice_vsi *vsi;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
+ if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ ethertype_setting = insertion_msg->outer_ethertype_setting;
+ if (ethertype_setting && vsi->outer_vlan_ops.dis_insertion(vsi)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+ ethertype_setting = insertion_msg->inner_ethertype_setting;
+ if (ethertype_setting && vsi->inner_vlan_ops.dis_insertion(vsi)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto out;
+ }
+
+out:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2,
+ v_ret, NULL, 0);
+}
+
+static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = {
+ .get_ver_msg = ice_vc_get_ver_msg,
+ .get_vf_res_msg = ice_vc_get_vf_res_msg,
+ .reset_vf = ice_vc_reset_vf_msg,
+ .add_mac_addr_msg = ice_vc_add_mac_addr_msg,
+ .del_mac_addr_msg = ice_vc_del_mac_addr_msg,
+ .cfg_qs_msg = ice_vc_cfg_qs_msg,
+ .ena_qs_msg = ice_vc_ena_qs_msg,
+ .dis_qs_msg = ice_vc_dis_qs_msg,
+ .request_qs_msg = ice_vc_request_qs_msg,
+ .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
+ .config_rss_key = ice_vc_config_rss_key,
+ .config_rss_lut = ice_vc_config_rss_lut,
+ .get_stats_msg = ice_vc_get_stats_msg,
+ .cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg,
+ .add_vlan_msg = ice_vc_add_vlan_msg,
+ .remove_vlan_msg = ice_vc_remove_vlan_msg,
+ .ena_vlan_stripping = ice_vc_ena_vlan_stripping,
+ .dis_vlan_stripping = ice_vc_dis_vlan_stripping,
+ .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
+ .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
+ .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
+ .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
+ .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
+ .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
+ .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
+ .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
+ .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
+ .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
+};
+
+/**
+ * ice_virtchnl_set_dflt_ops - Switch to default virtchnl ops
+ * @vf: the VF to switch ops
+ */
+void ice_virtchnl_set_dflt_ops(struct ice_vf *vf)
+{
+ vf->virtchnl_ops = &ice_virtchnl_dflt_ops;
+}
+
+/**
+ * ice_vc_repr_add_mac
+ * @vf: pointer to VF
+ * @msg: virtchannel message
+ *
+ * When port representors are created, we do not add MAC rule
+ * to firmware, we store it so that PF could report same
+ * MAC as VF.
+ */
+static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg)
+{
+ enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
+ struct virtchnl_ether_addr_list *al =
+ (struct virtchnl_ether_addr_list *)msg;
+ struct ice_vsi *vsi;
+ struct ice_pf *pf;
+ int i;
+
+ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
+ !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto handle_mac_exit;
+ }
+
+ pf = vf->pf;
+
+ vsi = ice_get_vf_vsi(vf);
+ if (!vsi) {
+ v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+ goto handle_mac_exit;
+ }
+
+ for (i = 0; i < al->num_elements; i++) {
+ u8 *mac_addr = al->list[i].addr;
+ int result;
+
+ if (!is_unicast_ether_addr(mac_addr) ||
+ ether_addr_equal(mac_addr, vf->hw_lan_addr.addr))
+ continue;
+
+ if (vf->pf_set_mac) {
+ dev_err(ice_pf_to_dev(pf), "VF attempting to override administratively set MAC address\n");
+ v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
+ goto handle_mac_exit;
+ }
+
+ result = ice_eswitch_add_vf_mac_rule(pf, vf, mac_addr);
+ if (result) {
+ dev_err(ice_pf_to_dev(pf), "Failed to add MAC %pM for VF %d\n, error %d\n",
+ mac_addr, vf->vf_id, result);
+ goto handle_mac_exit;
+ }
+
+ ice_vfhw_mac_add(vf, &al->list[i]);
+ vf->num_mac++;
+ break;
+ }
+
+handle_mac_exit:
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
+ v_ret, NULL, 0);
+}
+
+/**
+ * ice_vc_repr_del_mac - response with success for deleting MAC
+ * @vf: pointer to VF
+ * @msg: virtchannel message
+ *
+ * Respond with success to not break normal VF flow.
+ * For legacy VF driver try to update cached MAC address.
+ */
+static int
+ice_vc_repr_del_mac(struct ice_vf __always_unused *vf, u8 __always_unused *msg)
+{
+ struct virtchnl_ether_addr_list *al =
+ (struct virtchnl_ether_addr_list *)msg;
+
+ ice_update_legacy_cached_mac(vf, &al->list[0]);
+
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
+ VIRTCHNL_STATUS_SUCCESS, NULL, 0);
+}
+
+static int
+ice_vc_repr_cfg_promiscuous_mode(struct ice_vf *vf, u8 __always_unused *msg)
+{
+ dev_dbg(ice_pf_to_dev(vf->pf),
+ "Can't config promiscuous mode in switchdev mode for VF %d\n",
+ vf->vf_id);
+ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
+ VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
+ NULL, 0);
+}
+
+static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = {
+ .get_ver_msg = ice_vc_get_ver_msg,
+ .get_vf_res_msg = ice_vc_get_vf_res_msg,
+ .reset_vf = ice_vc_reset_vf_msg,
+ .add_mac_addr_msg = ice_vc_repr_add_mac,
+ .del_mac_addr_msg = ice_vc_repr_del_mac,
+ .cfg_qs_msg = ice_vc_cfg_qs_msg,
+ .ena_qs_msg = ice_vc_ena_qs_msg,
+ .dis_qs_msg = ice_vc_dis_qs_msg,
+ .request_qs_msg = ice_vc_request_qs_msg,
+ .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
+ .config_rss_key = ice_vc_config_rss_key,
+ .config_rss_lut = ice_vc_config_rss_lut,
+ .get_stats_msg = ice_vc_get_stats_msg,
+ .cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode,
+ .add_vlan_msg = ice_vc_add_vlan_msg,
+ .remove_vlan_msg = ice_vc_remove_vlan_msg,
+ .ena_vlan_stripping = ice_vc_ena_vlan_stripping,
+ .dis_vlan_stripping = ice_vc_dis_vlan_stripping,
+ .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
+ .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
+ .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
+ .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
+ .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
+ .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
+ .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
+ .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
+ .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
+ .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
+};
+
+/**
+ * ice_virtchnl_set_repr_ops - Switch to representor virtchnl ops
+ * @vf: the VF to switch ops
+ */
+void ice_virtchnl_set_repr_ops(struct ice_vf *vf)
+{
+ vf->virtchnl_ops = &ice_virtchnl_repr_ops;
+}
+
+/**
+ * ice_vc_process_vf_msg - Process request from VF
+ * @pf: pointer to the PF structure
+ * @event: pointer to the AQ event
+ *
+ * called from the common asq/arq handler to
+ * process request from VF
+ */
+void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
+{
+ u32 v_opcode = le32_to_cpu(event->desc.cookie_high);
+ s16 vf_id = le16_to_cpu(event->desc.retval);
+ const struct ice_virtchnl_ops *ops;
+ u16 msglen = event->msg_len;
+ u8 *msg = event->msg_buf;
+ struct ice_vf *vf = NULL;
+ struct device *dev;
+ int err = 0;
+
+ dev = ice_pf_to_dev(pf);
+
+ vf = ice_get_vf_by_id(pf, vf_id);
+ if (!vf) {
+ dev_err(dev, "Unable to locate VF for message from VF ID %d, opcode %d, len %d\n",
+ vf_id, v_opcode, msglen);
+ return;
+ }
+
+ mutex_lock(&vf->cfg_lock);
+
+ /* Check if VF is disabled. */
+ if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
+ err = -EPERM;
+ goto error_handler;
+ }
+
+ ops = vf->virtchnl_ops;
+
+ /* Perform basic checks on the msg */
+ err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
+ if (err) {
+ if (err == VIRTCHNL_STATUS_ERR_PARAM)
+ err = -EPERM;
+ else
+ err = -EINVAL;
+ }
+
+error_handler:
+ if (err) {
+ ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
+ NULL, 0);
+ dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
+ vf_id, v_opcode, msglen, err);
+ goto finish;
+ }
+
+ if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
+ ice_vc_send_msg_to_vf(vf, v_opcode,
+ VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
+ 0);
+ goto finish;
+ }
+
+ switch (v_opcode) {
+ case VIRTCHNL_OP_VERSION:
+ err = ops->get_ver_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_GET_VF_RESOURCES:
+ err = ops->get_vf_res_msg(vf, msg);
+ if (ice_vf_init_vlan_stripping(vf))
+ dev_dbg(dev, "Failed to initialize VLAN stripping for VF %d\n",
+ vf->vf_id);
+ ice_vc_notify_vf_link_state(vf);
+ break;
+ case VIRTCHNL_OP_RESET_VF:
+ ops->reset_vf(vf);
+ break;
+ case VIRTCHNL_OP_ADD_ETH_ADDR:
+ err = ops->add_mac_addr_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_DEL_ETH_ADDR:
+ err = ops->del_mac_addr_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
+ err = ops->cfg_qs_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_ENABLE_QUEUES:
+ err = ops->ena_qs_msg(vf, msg);
+ ice_vc_notify_vf_link_state(vf);
+ break;
+ case VIRTCHNL_OP_DISABLE_QUEUES:
+ err = ops->dis_qs_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_REQUEST_QUEUES:
+ err = ops->request_qs_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_CONFIG_IRQ_MAP:
+ err = ops->cfg_irq_map_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_CONFIG_RSS_KEY:
+ err = ops->config_rss_key(vf, msg);
+ break;
+ case VIRTCHNL_OP_CONFIG_RSS_LUT:
+ err = ops->config_rss_lut(vf, msg);
+ break;
+ case VIRTCHNL_OP_GET_STATS:
+ err = ops->get_stats_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
+ err = ops->cfg_promiscuous_mode_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_ADD_VLAN:
+ err = ops->add_vlan_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_DEL_VLAN:
+ err = ops->remove_vlan_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
+ err = ops->ena_vlan_stripping(vf);
+ break;
+ case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
+ err = ops->dis_vlan_stripping(vf);
+ break;
+ case VIRTCHNL_OP_ADD_FDIR_FILTER:
+ err = ops->add_fdir_fltr_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_DEL_FDIR_FILTER:
+ err = ops->del_fdir_fltr_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_ADD_RSS_CFG:
+ err = ops->handle_rss_cfg_msg(vf, msg, true);
+ break;
+ case VIRTCHNL_OP_DEL_RSS_CFG:
+ err = ops->handle_rss_cfg_msg(vf, msg, false);
+ break;
+ case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
+ err = ops->get_offload_vlan_v2_caps(vf);
+ break;
+ case VIRTCHNL_OP_ADD_VLAN_V2:
+ err = ops->add_vlan_v2_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_DEL_VLAN_V2:
+ err = ops->remove_vlan_v2_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
+ err = ops->ena_vlan_stripping_v2_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
+ err = ops->dis_vlan_stripping_v2_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
+ err = ops->ena_vlan_insertion_v2_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
+ err = ops->dis_vlan_insertion_v2_msg(vf, msg);
+ break;
+ case VIRTCHNL_OP_UNKNOWN:
+ default:
+ dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode,
+ vf_id);
+ err = ice_vc_send_msg_to_vf(vf, v_opcode,
+ VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
+ NULL, 0);
+ break;
+ }
+ if (err) {
+ /* Helper function cares less about error return values here
+ * as it is busy with pending work.
+ */
+ dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
+ vf_id, v_opcode, err);
+ }
+
+finish:
+ mutex_unlock(&vf->cfg_lock);
+ ice_put_vf(vf);
+}