return 0;
}
+/**
+ * ice_get_link_speed_mbps - get link speed in Mbps
+ * @vsi: the VSI whose link speed is being queried
+ *
+ * Return current VSI link speed and 0 if the speed is unknown.
+ */
+int ice_get_link_speed_mbps(struct ice_vsi *vsi)
+{
+ switch (vsi->port_info->phy.link_info.link_speed) {
+ case ICE_AQ_LINK_SPEED_100GB:
+ return SPEED_100000;
+ case ICE_AQ_LINK_SPEED_50GB:
+ return SPEED_50000;
+ case ICE_AQ_LINK_SPEED_40GB:
+ return SPEED_40000;
+ case ICE_AQ_LINK_SPEED_25GB:
+ return SPEED_25000;
+ case ICE_AQ_LINK_SPEED_20GB:
+ return SPEED_20000;
+ case ICE_AQ_LINK_SPEED_10GB:
+ return SPEED_10000;
+ case ICE_AQ_LINK_SPEED_5GB:
+ return SPEED_5000;
+ case ICE_AQ_LINK_SPEED_2500MB:
+ return SPEED_2500;
+ case ICE_AQ_LINK_SPEED_1000MB:
+ return SPEED_1000;
+ case ICE_AQ_LINK_SPEED_100MB:
+ return SPEED_100;
+ case ICE_AQ_LINK_SPEED_10MB:
+ return SPEED_10;
+ case ICE_AQ_LINK_SPEED_UNKNOWN:
+ default:
+ return 0;
+ }
+}
+
+/**
+ * ice_get_link_speed_kbps - get link speed in Kbps
+ * @vsi: the VSI whose link speed is being queried
+ *
+ * Return current VSI link speed and 0 if the speed is unknown.
+ */
+static int ice_get_link_speed_kbps(struct ice_vsi *vsi)
+{
+ int speed_mbps;
+
+ speed_mbps = ice_get_link_speed_mbps(vsi);
+
+ return speed_mbps * 1000;
+}
+
+/**
+ * ice_set_min_bw_limit - setup minimum BW limit for Tx based on min_tx_rate
+ * @vsi: VSI to be configured
+ * @min_tx_rate: min Tx rate in Kbps to be configured as BW limit
+ *
+ * If the min_tx_rate is specified as 0 that means to clear the minimum BW limit
+ * profile, otherwise a non-zero value will force a minimum BW limit for the VSI
+ * on TC 0.
+ */
+int ice_set_min_bw_limit(struct ice_vsi *vsi, u64 min_tx_rate)
+{
+ struct ice_pf *pf = vsi->back;
+ enum ice_status status;
+ struct device *dev;
+ int speed;
+
+ dev = ice_pf_to_dev(pf);
+ if (!vsi->port_info) {
+ dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n",
+ vsi->idx, vsi->type);
+ return -EINVAL;
+ }
+
+ speed = ice_get_link_speed_kbps(vsi);
+ if (min_tx_rate > (u64)speed) {
+ dev_err(dev, "invalid min Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n",
+ min_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx,
+ speed);
+ return -EINVAL;
+ }
+
+ /* Configure min BW for VSI limit */
+ if (min_tx_rate) {
+ status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0,
+ ICE_MIN_BW, min_tx_rate);
+ if (status) {
+ dev_err(dev, "failed to set min Tx rate(%llu Kbps) for %s %d\n",
+ min_tx_rate, ice_vsi_type_str(vsi->type),
+ vsi->idx);
+ return -EIO;
+ }
+
+ dev_dbg(dev, "set min Tx rate(%llu Kbps) for %s\n",
+ min_tx_rate, ice_vsi_type_str(vsi->type));
+ } else {
+ status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info,
+ vsi->idx, 0,
+ ICE_MIN_BW);
+ if (status) {
+ dev_err(dev, "failed to clear min Tx rate configuration for %s %d\n",
+ ice_vsi_type_str(vsi->type), vsi->idx);
+ return -EIO;
+ }
+
+ dev_dbg(dev, "cleared min Tx rate configuration for %s %d\n",
+ ice_vsi_type_str(vsi->type), vsi->idx);
+ }
+
+ return 0;
+}
+
+/**
+ * ice_set_max_bw_limit - setup maximum BW limit for Tx based on max_tx_rate
+ * @vsi: VSI to be configured
+ * @max_tx_rate: max Tx rate in Kbps to be configured as BW limit
+ *
+ * If the max_tx_rate is specified as 0 that means to clear the maximum BW limit
+ * profile, otherwise a non-zero value will force a maximum BW limit for the VSI
+ * on TC 0.
+ */
+int ice_set_max_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate)
+{
+ struct ice_pf *pf = vsi->back;
+ enum ice_status status;
+ struct device *dev;
+ int speed;
+
+ dev = ice_pf_to_dev(pf);
+ if (!vsi->port_info) {
+ dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n",
+ vsi->idx, vsi->type);
+ return -EINVAL;
+ }
+
+ speed = ice_get_link_speed_kbps(vsi);
+ if (max_tx_rate > (u64)speed) {
+ dev_err(dev, "invalid max Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n",
+ max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx,
+ speed);
+ return -EINVAL;
+ }
+
+ /* Configure max BW for VSI limit */
+ if (max_tx_rate) {
+ status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0,
+ ICE_MAX_BW, max_tx_rate);
+ if (status) {
+ dev_err(dev, "failed setting max Tx rate(%llu Kbps) for %s %d\n",
+ max_tx_rate, ice_vsi_type_str(vsi->type),
+ vsi->idx);
+ return -EIO;
+ }
+
+ dev_dbg(dev, "set max Tx rate(%llu Kbps) for %s %d\n",
+ max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx);
+ } else {
+ status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info,
+ vsi->idx, 0,
+ ICE_MAX_BW);
+ if (status) {
+ dev_err(dev, "failed clearing max Tx rate configuration for %s %d\n",
+ ice_vsi_type_str(vsi->type), vsi->idx);
+ return -EIO;
+ }
+
+ dev_dbg(dev, "cleared max Tx rate configuration for %s %d\n",
+ ice_vsi_type_str(vsi->type), vsi->idx);
+ }
+
+ return 0;
+}
+
/**
* ice_set_link - turn on/off physical link
* @vsi: VSI to modify physical link on
int ice_set_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi);
int ice_clear_dflt_vsi(struct ice_sw *sw);
-
+int ice_set_min_bw_limit(struct ice_vsi *vsi, u64 min_tx_rate);
+int ice_set_max_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate);
+int ice_get_link_speed_mbps(struct ice_vsi *vsi);
int
ice_vsi_update_security(struct ice_vsi *vsi, void (*fill)(struct ice_vsi_ctx *));
.ndo_set_vf_vlan = ice_set_vf_port_vlan,
.ndo_set_vf_link_state = ice_set_vf_link_state,
.ndo_get_vf_stats = ice_get_vf_stats,
+ .ndo_set_vf_rate = ice_set_vf_bw,
.ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,
.ndo_setup_tc = ice_setup_tc,
ICE_SCHED_DFLT_BW);
}
+/**
+ * ice_sched_get_node_by_id_type - get node from ID type
+ * @pi: port information structure
+ * @id: identifier
+ * @agg_type: type of aggregator
+ * @tc: traffic class
+ *
+ * This function returns node identified by ID of type aggregator, and
+ * based on traffic class (TC). This function needs to be called with
+ * the scheduler lock held.
+ */
+static struct ice_sched_node *
+ice_sched_get_node_by_id_type(struct ice_port_info *pi, u32 id,
+ enum ice_agg_type agg_type, u8 tc)
+{
+ struct ice_sched_node *node = NULL;
+
+ switch (agg_type) {
+ case ICE_AGG_TYPE_VSI: {
+ struct ice_vsi_ctx *vsi_ctx;
+ u16 vsi_handle = (u16)id;
+
+ if (!ice_is_vsi_valid(pi->hw, vsi_handle))
+ break;
+ /* Get sched_vsi_info */
+ vsi_ctx = ice_get_vsi_ctx(pi->hw, vsi_handle);
+ if (!vsi_ctx)
+ break;
+ node = vsi_ctx->sched.vsi_node[tc];
+ break;
+ }
+
+ case ICE_AGG_TYPE_AGG: {
+ struct ice_sched_node *tc_node;
+
+ tc_node = ice_sched_get_tc_node(pi, tc);
+ if (tc_node)
+ node = ice_sched_get_agg_node(pi, tc_node, id);
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ return node;
+}
+
+/**
+ * ice_sched_set_node_bw_lmt_per_tc - set node BW limit per TC
+ * @pi: port information structure
+ * @id: ID (software VSI handle or AGG ID)
+ * @agg_type: aggregator type (VSI or AGG type node)
+ * @tc: traffic class
+ * @rl_type: min or max
+ * @bw: bandwidth in Kbps
+ *
+ * This function sets BW limit of VSI or Aggregator scheduling node
+ * based on TC information from passed in argument BW.
+ */
+static enum ice_status
+ice_sched_set_node_bw_lmt_per_tc(struct ice_port_info *pi, u32 id,
+ enum ice_agg_type agg_type, u8 tc,
+ enum ice_rl_type rl_type, u32 bw)
+{
+ enum ice_status status = ICE_ERR_PARAM;
+ struct ice_sched_node *node;
+
+ if (!pi)
+ return status;
+
+ if (rl_type == ICE_UNKNOWN_BW)
+ return status;
+
+ mutex_lock(&pi->sched_lock);
+ node = ice_sched_get_node_by_id_type(pi, id, agg_type, tc);
+ if (!node) {
+ ice_debug(pi->hw, ICE_DBG_SCHED, "Wrong id, agg type, or tc\n");
+ goto exit_set_node_bw_lmt_per_tc;
+ }
+ if (bw == ICE_SCHED_DFLT_BW)
+ status = ice_sched_set_node_bw_dflt_lmt(pi, node, rl_type);
+ else
+ status = ice_sched_set_node_bw_lmt(pi, node, rl_type, bw);
+
+exit_set_node_bw_lmt_per_tc:
+ mutex_unlock(&pi->sched_lock);
+ return status;
+}
+
+/**
+ * ice_cfg_vsi_bw_lmt_per_tc - configure VSI BW limit per TC
+ * @pi: port information structure
+ * @vsi_handle: software VSI handle
+ * @tc: traffic class
+ * @rl_type: min or max
+ * @bw: bandwidth in Kbps
+ *
+ * This function configures BW limit of VSI scheduling node based on TC
+ * information.
+ */
+enum ice_status
+ice_cfg_vsi_bw_lmt_per_tc(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+ enum ice_rl_type rl_type, u32 bw)
+{
+ return ice_sched_set_node_bw_lmt_per_tc(pi, vsi_handle,
+ ICE_AGG_TYPE_VSI,
+ tc, rl_type, bw);
+}
+
+/**
+ * ice_cfg_vsi_bw_dflt_lmt_per_tc - configure default VSI BW limit per TC
+ * @pi: port information structure
+ * @vsi_handle: software VSI handle
+ * @tc: traffic class
+ * @rl_type: min or max
+ *
+ * This function configures default BW limit of VSI scheduling node based on TC
+ * information.
+ */
+enum ice_status
+ice_cfg_vsi_bw_dflt_lmt_per_tc(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+ enum ice_rl_type rl_type)
+{
+ return ice_sched_set_node_bw_lmt_per_tc(pi, vsi_handle,
+ ICE_AGG_TYPE_VSI,
+ tc, rl_type,
+ ICE_SCHED_DFLT_BW);
+}
+
/**
* ice_cfg_rl_burst_size - Set burst size value
* @hw: pointer to the HW struct
enum ice_status
ice_cfg_q_bw_dflt_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
u16 q_handle, enum ice_rl_type rl_type);
+enum ice_status
+ice_cfg_vsi_bw_lmt_per_tc(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+ enum ice_rl_type rl_type, u32 bw);
+enum ice_status
+ice_cfg_vsi_bw_dflt_lmt_per_tc(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+ enum ice_rl_type rl_type);
enum ice_status ice_cfg_rl_burst_size(struct ice_hw *hw, u32 bytes);
void ice_sched_replay_agg_vsi_preinit(struct ice_hw *hw);
void ice_sched_replay_agg(struct ice_hw *hw);
#include "ice_base.h"
#include "ice_lib.h"
#include "ice_fltr.h"
+#include "ice_dcb_lib.h"
#include "ice_flow.h"
#include "ice_eswitch.h"
#include "ice_virtchnl_allowlist.h"
return pf->sriov_base_vector + vf->vf_id * pf->num_msix_per_vf;
}
+/**
+ * ice_vf_rebuild_host_tx_rate_cfg - re-apply the Tx rate limiting configuration
+ * @vf: VF to re-apply the configuration for
+ *
+ * Called after a VF VSI has been re-added/rebuild during reset. The PF driver
+ * needs to re-apply the host configured Tx rate limiting configuration.
+ */
+static int ice_vf_rebuild_host_tx_rate_cfg(struct ice_vf *vf)
+{
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ struct ice_vsi *vsi = ice_get_vf_vsi(vf);
+ int err;
+
+ if (vf->min_tx_rate) {
+ err = ice_set_min_bw_limit(vsi, (u64)vf->min_tx_rate * 1000);
+ if (err) {
+ dev_err(dev, "failed to set min Tx rate to %d Mbps for VF %u, error %d\n",
+ vf->min_tx_rate, vf->vf_id, err);
+ return err;
+ }
+ }
+
+ if (vf->max_tx_rate) {
+ err = ice_set_max_bw_limit(vsi, (u64)vf->max_tx_rate * 1000);
+ if (err) {
+ dev_err(dev, "failed to set max Tx rate to %d Mbps for VF %u, error %d\n",
+ vf->max_tx_rate, vf->vf_id, err);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
/**
* ice_vf_rebuild_host_vlan_cfg - add VLAN 0 filter or rebuild the Port VLAN
* @vf: VF to add MAC filters for
if (ice_vf_rebuild_host_vlan_cfg(vf))
dev_err(dev, "failed to rebuild VLAN configuration for VF %u\n",
vf->vf_id);
+
+ if (ice_vf_rebuild_host_tx_rate_cfg(vf))
+ dev_err(dev, "failed to rebuild Tx rate limiting configuration for VF %u\n",
+ vf->vf_id);
+
/* rebuild aggregator node config for main VF VSI */
ice_vf_rebuild_aggregator_node_cfg(vsi);
}
ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
else
ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
- ivi->max_tx_rate = vf->tx_rate;
- ivi->min_tx_rate = 0;
+ ivi->max_tx_rate = vf->max_tx_rate;
+ ivi->min_tx_rate = vf->min_tx_rate;
return 0;
}
return 0;
}
+/**
+ * ice_calc_all_vfs_min_tx_rate - calculate cumulative min Tx rate on all VFs
+ * @pf: PF associated with VFs
+ */
+static int ice_calc_all_vfs_min_tx_rate(struct ice_pf *pf)
+{
+ int rate = 0, i;
+
+ ice_for_each_vf(pf, i)
+ rate += pf->vf[i].min_tx_rate;
+
+ return rate;
+}
+
+/**
+ * ice_min_tx_rate_oversubscribed - check if min Tx rate causes oversubscription
+ * @vf: VF trying to configure min_tx_rate
+ * @min_tx_rate: min Tx rate in Mbps
+ *
+ * Check if the min_tx_rate being passed in will cause oversubscription of total
+ * min_tx_rate based on the current link speed and all other VFs configured
+ * min_tx_rate
+ *
+ * Return true if the passed min_tx_rate would cause oversubscription, else
+ * return false
+ */
+static bool
+ice_min_tx_rate_oversubscribed(struct ice_vf *vf, int min_tx_rate)
+{
+ int link_speed_mbps = ice_get_link_speed_mbps(ice_get_vf_vsi(vf));
+ int all_vfs_min_tx_rate = ice_calc_all_vfs_min_tx_rate(vf->pf);
+
+ /* this VF's previous rate is being overwritten */
+ all_vfs_min_tx_rate -= vf->min_tx_rate;
+
+ if (all_vfs_min_tx_rate + min_tx_rate > link_speed_mbps) {
+ dev_err(ice_pf_to_dev(vf->pf), "min_tx_rate of %d Mbps on VF %u would cause oversubscription of %d Mbps based on the current link speed %d Mbps\n",
+ min_tx_rate, vf->vf_id,
+ all_vfs_min_tx_rate + min_tx_rate - link_speed_mbps,
+ link_speed_mbps);
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * ice_set_vf_bw - set min/max VF bandwidth
+ * @netdev: network interface device structure
+ * @vf_id: VF identifier
+ * @min_tx_rate: Minimum Tx rate in Mbps
+ * @max_tx_rate: Maximum Tx rate in Mbps
+ */
+int
+ice_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
+ int max_tx_rate)
+{
+ struct ice_pf *pf = ice_netdev_to_pf(netdev);
+ struct ice_vsi *vsi;
+ struct device *dev;
+ struct ice_vf *vf;
+ int ret;
+
+ dev = ice_pf_to_dev(pf);
+ if (ice_validate_vf_id(pf, vf_id))
+ return -EINVAL;
+
+ vf = &pf->vf[vf_id];
+ ret = ice_check_vf_ready_for_cfg(vf);
+ if (ret)
+ return ret;
+
+ vsi = ice_get_vf_vsi(vf);
+
+ /* when max_tx_rate is zero that means no max Tx rate limiting, so only
+ * check if max_tx_rate is non-zero
+ */
+ if (max_tx_rate && min_tx_rate > max_tx_rate) {
+ dev_err(dev, "Cannot set min Tx rate %d Mbps greater than max Tx rate %d Mbps\n",
+ min_tx_rate, max_tx_rate);
+ return -EINVAL;
+ }
+
+ if (min_tx_rate && ice_is_dcb_active(pf)) {
+ dev_err(dev, "DCB on PF is currently enabled. VF min Tx rate limiting not allowed on this PF.\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (ice_min_tx_rate_oversubscribed(vf, min_tx_rate))
+ return -EINVAL;
+
+ if (vf->min_tx_rate != (unsigned int)min_tx_rate) {
+ ret = ice_set_min_bw_limit(vsi, (u64)min_tx_rate * 1000);
+ if (ret) {
+ dev_err(dev, "Unable to set min-tx-rate for VF %d\n",
+ vf->vf_id);
+ return ret;
+ }
+
+ vf->min_tx_rate = min_tx_rate;
+ }
+
+ if (vf->max_tx_rate != (unsigned int)max_tx_rate) {
+ ret = ice_set_max_bw_limit(vsi, (u64)max_tx_rate * 1000);
+ if (ret) {
+ dev_err(dev, "Unable to set max-tx-rate for VF %d\n",
+ vf->vf_id);
+ return ret;
+ }
+
+ vf->max_tx_rate = max_tx_rate;
+ }
+
+ return 0;
+}
+
/**
* ice_get_vf_stats - populate some stats for the VF
* @netdev: the netdev of the PF
* the main LAN VSI for the PF.
*/
u16 lan_vsi_num; /* ID as used by firmware */
- unsigned int tx_rate; /* Tx bandwidth limit in Mbps */
+ unsigned int min_tx_rate; /* Minimum Tx bandwidth limit in Mbps */
+ unsigned int max_tx_rate; /* Maximum Tx bandwidth limit in Mbps */
DECLARE_BITMAP(vf_states, ICE_VF_STATES_NBITS); /* VF runtime states */
u64 num_inval_msgs; /* number of continuous invalid msgs */
ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
__be16 vlan_proto);
+int
+ice_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
+ int max_tx_rate);
+
int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted);
int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state);
return -EOPNOTSUPP;
}
+static inline int
+ice_set_vf_bw(struct net_device __always_unused *netdev,
+ int __always_unused vf_id, int __always_unused min_tx_rate,
+ int __always_unused max_tx_rate)
+{
+ return -EOPNOTSUPP;
+}
+
static inline int
ice_calc_vf_reg_idx(struct ice_vf __always_unused *vf,
struct ice_q_vector __always_unused *q_vector)
projects / platform / kernel / linux-starfive.git / commitdiff