On 06/05, Ting Xu wrote: >From: Qi Zhang <qi.z.zh...@intel.com> > >Enable RSS initialization during DCF start. Add RSS LUT and >RSS key configuration functions. > >Signed-off-by: Qi Zhang <qi.z.zh...@intel.com> >--- > drivers/net/ice/ice_dcf.c | 123 +++++++++++++++++++++++++++++++ > drivers/net/ice/ice_dcf.h | 1 + > drivers/net/ice/ice_dcf_ethdev.c | 14 +++- > 3 files changed, 135 insertions(+), 3 deletions(-) > >diff --git a/drivers/net/ice/ice_dcf.c b/drivers/net/ice/ice_dcf.c >index 93fabd5f7..8d078163e 100644 >--- a/drivers/net/ice/ice_dcf.c >+++ b/drivers/net/ice/ice_dcf.c >@@ -708,3 +708,126 @@ ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct >ice_dcf_hw *hw) > rte_free(hw->rss_lut); > rte_free(hw->rss_key); > } >+ >+static int >+ice_dcf_configure_rss_key(struct ice_dcf_hw *hw) >+{ >+ struct virtchnl_rss_key *rss_key; >+ struct dcf_virtchnl_cmd args; >+ int len, err; >+ >+ len = sizeof(*rss_key) + hw->vf_res->rss_key_size - 1; >+ rss_key = rte_zmalloc("rss_key", len, 0); >+ if (!rss_key) >+ return -ENOMEM; >+ >+ rss_key->vsi_id = hw->vsi_res->vsi_id; >+ rss_key->key_len = hw->vf_res->rss_key_size; >+ rte_memcpy(rss_key->key, hw->rss_key, hw->vf_res->rss_key_size); >+ >+ args.v_op = VIRTCHNL_OP_CONFIG_RSS_KEY; >+ args.req_msglen = len; >+ args.req_msg = (uint8_t *)rss_key; >+ args.rsp_msglen = 0; >+ args.rsp_buflen = 0; >+ args.rsp_msgbuf = NULL; >+ args.pending = 0; >+ >+ err = ice_dcf_execute_virtchnl_cmd(hw, &args); >+ if (err) { >+ PMD_INIT_LOG(ERR, "Failed to execute OP_CONFIG_RSS_KEY");
Need to free rss_key in error handling as well. >+ return err; >+ } >+ >+ rte_free(rss_key); >+ return 0; >+} >+ >+static int >+ice_dcf_configure_rss_lut(struct ice_dcf_hw *hw) >+{ >+ struct virtchnl_rss_lut *rss_lut; >+ struct dcf_virtchnl_cmd args; >+ int len, err; >+ >+ len = sizeof(*rss_lut) + hw->vf_res->rss_lut_size - 1; >+ rss_lut = rte_zmalloc("rss_lut", len, 0); >+ if (!rss_lut) >+ return -ENOMEM; >+ >+ rss_lut->vsi_id = hw->vsi_res->vsi_id; >+ rss_lut->lut_entries = hw->vf_res->rss_lut_size; >+ rte_memcpy(rss_lut->lut, hw->rss_lut, hw->vf_res->rss_lut_size); >+ >+ args.v_op = VIRTCHNL_OP_CONFIG_RSS_LUT; >+ args.req_msglen = len; >+ args.req_msg = (uint8_t *)rss_lut; >+ args.rsp_msglen = 0; >+ args.rsp_buflen = 0; >+ args.rsp_msgbuf = NULL; >+ args.pending = 0; >+ >+ err = ice_dcf_execute_virtchnl_cmd(hw, &args); >+ if (err) { >+ PMD_INIT_LOG(ERR, "Failed to execute OP_CONFIG_RSS_LUT"); Need to free rss_lut here. >+ return err; >+ } >+ >+ rte_free(rss_lut); >+ return 0; >+} >+ >+int >+ice_dcf_init_rss(struct ice_dcf_hw *hw) >+{ >+ struct rte_eth_dev *dev = hw->eth_dev; >+ struct rte_eth_rss_conf *rss_conf; >+ uint8_t i, j, nb_q; >+ int ret; >+ >+ rss_conf = &dev->data->dev_conf.rx_adv_conf.rss_conf; >+ nb_q = dev->data->nb_rx_queues; >+ >+ if (!(hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF)) { >+ PMD_DRV_LOG(DEBUG, "RSS is not supported"); >+ return -ENOTSUP; >+ } >+ if (dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_RSS) { >+ PMD_DRV_LOG(WARNING, "RSS is enabled by PF by default"); >+ /* set all lut items to default queue */ >+ for (i = 0; i < hw->vf_res->rss_lut_size; i++) >+ hw->rss_lut[i] = 0; How about memset(hw->rss_lut, 0, hw->vf_res->rss_lut_size); >+ ret = ice_dcf_configure_rss_lut(hw); >+ return ret; return ice_dcf_configure_rss_lut(hw); >+ } >+ >+ /* In IAVF, RSS enablement is set by PF driver. It is not supported >+ * to set based on rss_conf->rss_hf. >+ */ >+ >+ /* configure RSS key */ >+ if (!rss_conf->rss_key) >+ /* Calculate the default hash key */ >+ for (i = 0; i <= hw->vf_res->rss_key_size; i++) >+ hw->rss_key[i] = (uint8_t)rte_rand(); Why use <=, will it cause out-of-bounds access? >+ else >+ rte_memcpy(hw->rss_key, rss_conf->rss_key, >+ RTE_MIN(rss_conf->rss_key_len, >+ hw->vf_res->rss_key_size)); >+ >+ /* init RSS LUT table */ >+ for (i = 0, j = 0; i < hw->vf_res->rss_lut_size; i++, j++) { >+ if (j >= nb_q) >+ j = 0; >+ hw->rss_lut[i] = j; >+ } >+ /* send virtchnnl ops to configure rss*/ >+ ret = ice_dcf_configure_rss_lut(hw); >+ if (ret) >+ return ret; >+ ret = ice_dcf_configure_rss_key(hw); >+ if (ret) >+ return ret; >+ >+ return 0; >+} >diff --git a/drivers/net/ice/ice_dcf.h b/drivers/net/ice/ice_dcf.h >index dcb2a0283..eea4b286b 100644 >--- a/drivers/net/ice/ice_dcf.h >+++ b/drivers/net/ice/ice_dcf.h >@@ -63,5 +63,6 @@ int ice_dcf_send_aq_cmd(void *dcf_hw, struct ice_aq_desc >*desc, > int ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw); > int ice_dcf_init_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw); > void ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw); >+int ice_dcf_init_rss(struct ice_dcf_hw *hw); > > #endif /* _ICE_DCF_H_ */ >diff --git a/drivers/net/ice/ice_dcf_ethdev.c >b/drivers/net/ice/ice_dcf_ethdev.c >index 1f7474dc3..5fbf70803 100644 >--- a/drivers/net/ice/ice_dcf_ethdev.c >+++ b/drivers/net/ice/ice_dcf_ethdev.c >@@ -51,9 +51,9 @@ ice_dcf_init_rxq(struct rte_eth_dev *dev, struct >ice_rx_queue *rxq) > uint16_t buf_size, max_pkt_len, len; > > buf_size = rte_pktmbuf_data_room_size(rxq->mp) - RTE_PKTMBUF_HEADROOM; >- >- /* Calculate the maximum packet length allowed */ >- len = rxq->rx_buf_len * IAVF_MAX_CHAINED_RX_BUFFERS; >+ rxq->rx_hdr_len = 0; >+ rxq->rx_buf_len = RTE_ALIGN(buf_size, (1 << ICE_RLAN_CTX_DBUF_S)); >+ len = ICE_SUPPORT_CHAIN_NUM * rxq->rx_buf_len; Above change seems unrelated to this patch, what about squashing it to patch 6? Thanks, Xiaolong > max_pkt_len = RTE_MIN(len, dev->data->dev_conf.rxmode.max_rx_pkt_len); > > /* Check if the jumbo frame and maximum packet length are set >@@ -133,6 +133,14 @@ ice_dcf_dev_start(struct rte_eth_dev *dev) > return ret; > } > >+ if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) { >+ ret = ice_dcf_init_rss(hw); >+ if (ret) { >+ PMD_DRV_LOG(ERR, "Failed to configure RSS"); >+ return ret; >+ } >+ } >+ > dev->data->dev_link.link_status = ETH_LINK_UP; > > return 0; >-- >2.17.1 >