From 4a3de3fb0eb6897488dd510006abd9673f1fb34c Mon Sep 17 00:00:00 2001 From: Ahmed Zaki Date: Tue, 12 Dec 2023 17:33:21 -0700 Subject: iavf: enable symmetric-xor RSS for Toeplitz hash function Allow the user to set the symmetric Toeplitz hash function via: # ethtool -X eth0 hfunc toeplitz symmetric-xor The driver will reject any new RSS configuration if a field other than (IP src/dst and L4 src/dst ports) is requested for hashing. The symmetric RSS will not be supported on PFs not advertising the ADV RSS Offload flag (ADV_RSS_SUPPORT()), for example the E700 series (i40e). Reviewed-by: Madhu Chittim Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-9-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/intel/ice/ice_virtchnl.c | 50 ++++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_virtchnl.h | 1 + .../ethernet/intel/ice/ice_virtchnl_allowlist.c | 1 + 3 files changed, 52 insertions(+) (limited to 'drivers/net/ethernet/intel/ice') diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index 482f8e8b1951..d4ad0739b57b 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -999,6 +999,51 @@ error_param: NULL, 0); } +/** + * ice_vc_config_rss_hfunc + * @vf: pointer to the VF info + * @msg: pointer to the msg buffer + * + * Configure the VF's RSS Hash function + */ +static int ice_vc_config_rss_hfunc(struct ice_vf *vf, u8 *msg) +{ + struct virtchnl_rss_hfunc *vrh = (struct virtchnl_rss_hfunc *)msg; + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + u8 hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; + 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, vrh->vsi_id)) { + 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 (vrh->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ; + + if (ice_set_rss_hfunc(vsi, hfunc)) + v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; +error_param: + return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_HFUNC, v_ret, + NULL, 0); +} + /** * ice_vc_cfg_promiscuous_mode_msg * @vf: pointer to the VF info @@ -3766,6 +3811,7 @@ static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = { .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, + .config_rss_hfunc = ice_vc_config_rss_hfunc, .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, @@ -3895,6 +3941,7 @@ static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = { .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, + .config_rss_hfunc = ice_vc_config_rss_hfunc, .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, @@ -4077,6 +4124,9 @@ error_handler: case VIRTCHNL_OP_CONFIG_RSS_LUT: err = ops->config_rss_lut(vf, msg); break; + case VIRTCHNL_OP_CONFIG_RSS_HFUNC: + err = ops->config_rss_hfunc(vf, msg); + break; case VIRTCHNL_OP_GET_STATS: err = ops->get_stats_msg(vf, msg); break; diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.h b/drivers/net/ethernet/intel/ice/ice_virtchnl.h index cd747718de73..60dfbe05980a 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.h @@ -32,6 +32,7 @@ struct ice_virtchnl_ops { int (*cfg_irq_map_msg)(struct ice_vf *vf, u8 *msg); int (*config_rss_key)(struct ice_vf *vf, u8 *msg); int (*config_rss_lut)(struct ice_vf *vf, u8 *msg); + int (*config_rss_hfunc)(struct ice_vf *vf, u8 *msg); int (*get_stats_msg)(struct ice_vf *vf, u8 *msg); int (*cfg_promiscuous_mode_msg)(struct ice_vf *vf, u8 *msg); int (*add_vlan_msg)(struct ice_vf *vf, u8 *msg); diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c index 7d547fa616fa..5e19d48a05b4 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c @@ -68,6 +68,7 @@ static const u32 vlan_v2_allowlist_opcodes[] = { static const u32 rss_pf_allowlist_opcodes[] = { VIRTCHNL_OP_CONFIG_RSS_KEY, VIRTCHNL_OP_CONFIG_RSS_LUT, VIRTCHNL_OP_GET_RSS_HENA_CAPS, VIRTCHNL_OP_SET_RSS_HENA, + VIRTCHNL_OP_CONFIG_RSS_HFUNC, }; /* VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC */ -- cgit v1.2.3