From: Helin Zhang Date: Tue, 13 Oct 2015 07:19:49 +0000 (+0800) Subject: i40e: support AQ based RSS config X-Git-Tag: spdx-start~8175 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=d0a349409bd734a3d2b143f17ad4c65fff8257fc;p=dpdk.git i40e: support AQ based RSS config It supports both Admin queue based and directly writing registers based RSS hash key and lookup table configuration, as X722 supports AQ based configuration. Signed-off-by: Helin Zhang Acked-by: Wenzhuo Lu --- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 74411c8ce8..5a9f11d548 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -2441,17 +2441,73 @@ i40e_mac_filter_handle(struct rte_eth_dev *dev, enum rte_filter_op filter_op, return ret; } +static int +i40e_get_rss_lut(struct i40e_vsi *vsi, uint8_t *lut, uint16_t lut_size) +{ + struct i40e_pf *pf = I40E_VSI_TO_PF(vsi); + struct i40e_hw *hw = I40E_VSI_TO_HW(vsi); + int ret; + + if (!lut) + return -EINVAL; + + if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) { + ret = i40e_aq_get_rss_lut(hw, vsi->vsi_id, TRUE, + lut, lut_size); + if (ret) { + PMD_DRV_LOG(ERR, "Failed to get RSS lookup table"); + return ret; + } + } else { + uint32_t *lut_dw = (uint32_t *)lut; + uint16_t i, lut_size_dw = lut_size / 4; + + for (i = 0; i < lut_size_dw; i++) + lut_dw[i] = I40E_READ_REG(hw, I40E_PFQF_HLUT(i)); + } + + return 0; +} + +static int +i40e_set_rss_lut(struct i40e_vsi *vsi, uint8_t *lut, uint16_t lut_size) +{ + struct i40e_pf *pf = I40E_VSI_TO_PF(vsi); + struct i40e_hw *hw = I40E_VSI_TO_HW(vsi); + int ret; + + if (!vsi || !lut) + return -EINVAL; + + if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) { + ret = i40e_aq_set_rss_lut(hw, vsi->vsi_id, TRUE, + lut, lut_size); + if (ret) { + PMD_DRV_LOG(ERR, "Failed to set RSS lookup table"); + return ret; + } + } else { + uint32_t *lut_dw = (uint32_t *)lut; + uint16_t i, lut_size_dw = lut_size / 4; + + for (i = 0; i < lut_size_dw; i++) + I40E_WRITE_REG(hw, I40E_PFQF_HLUT(i), lut_dw[i]); + I40E_WRITE_FLUSH(hw); + } + + return 0; +} + static int i40e_dev_rss_reta_update(struct rte_eth_dev *dev, struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size) { struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); - struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); - uint32_t lut, l; - uint16_t i, j, lut_size = pf->hash_lut_size; + uint16_t i, lut_size = pf->hash_lut_size; uint16_t idx, shift; - uint8_t mask; + uint8_t *lut; + int ret; if (reta_size != lut_size || reta_size > ETH_RSS_RETA_SIZE_512) { @@ -2461,28 +2517,26 @@ i40e_dev_rss_reta_update(struct rte_eth_dev *dev, return -EINVAL; } - for (i = 0; i < reta_size; i += I40E_4_BIT_WIDTH) { + lut = rte_zmalloc("i40e_rss_lut", reta_size, 0); + if (!lut) { + PMD_DRV_LOG(ERR, "No memory can be allocated"); + return -ENOMEM; + } + ret = i40e_get_rss_lut(pf->main_vsi, lut, reta_size); + if (ret) + goto out; + for (i = 0; i < reta_size; i++) { idx = i / RTE_RETA_GROUP_SIZE; shift = i % RTE_RETA_GROUP_SIZE; - mask = (uint8_t)((reta_conf[idx].mask >> shift) & - I40E_4_BIT_MASK); - if (!mask) - continue; - if (mask == I40E_4_BIT_MASK) - l = 0; - else - l = I40E_READ_REG(hw, I40E_PFQF_HLUT(i >> 2)); - for (j = 0, lut = 0; j < I40E_4_BIT_WIDTH; j++) { - if (mask & (0x1 << j)) - lut |= reta_conf[idx].reta[shift + j] << - (CHAR_BIT * j); - else - lut |= l & (I40E_8_BIT_MASK << (CHAR_BIT * j)); - } - I40E_WRITE_REG(hw, I40E_PFQF_HLUT(i >> 2), lut); + if (reta_conf[idx].mask & (1ULL << shift)) + lut[i] = reta_conf[idx].reta[shift]; } + ret = i40e_set_rss_lut(pf->main_vsi, lut, reta_size); - return 0; +out: + rte_free(lut); + + return ret; } static int @@ -2491,11 +2545,10 @@ i40e_dev_rss_reta_query(struct rte_eth_dev *dev, uint16_t reta_size) { struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); - struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); - uint32_t lut; - uint16_t i, j, lut_size = pf->hash_lut_size; + uint16_t i, lut_size = pf->hash_lut_size; uint16_t idx, shift; - uint8_t mask; + uint8_t *lut; + int ret; if (reta_size != lut_size || reta_size > ETH_RSS_RETA_SIZE_512) { @@ -2505,23 +2558,26 @@ i40e_dev_rss_reta_query(struct rte_eth_dev *dev, return -EINVAL; } - for (i = 0; i < reta_size; i += I40E_4_BIT_WIDTH) { + lut = rte_zmalloc("i40e_rss_lut", reta_size, 0); + if (!lut) { + PMD_DRV_LOG(ERR, "No memory can be allocated"); + return -ENOMEM; + } + + ret = i40e_get_rss_lut(pf->main_vsi, lut, reta_size); + if (ret) + goto out; + for (i = 0; i < reta_size; i++) { idx = i / RTE_RETA_GROUP_SIZE; shift = i % RTE_RETA_GROUP_SIZE; - mask = (uint8_t)((reta_conf[idx].mask >> shift) & - I40E_4_BIT_MASK); - if (!mask) - continue; - - lut = I40E_READ_REG(hw, I40E_PFQF_HLUT(i >> 2)); - for (j = 0; j < I40E_4_BIT_WIDTH; j++) { - if (mask & (0x1 << j)) - reta_conf[idx].reta[shift + j] = ((lut >> - (CHAR_BIT * j)) & I40E_8_BIT_MASK); - } + if (reta_conf[idx].mask & (1ULL << shift)) + reta_conf[idx].reta[shift] = lut[i]; } - return 0; +out: + rte_free(lut); + + return ret; } /** @@ -2706,6 +2762,8 @@ i40e_pf_parameter_init(struct rte_eth_dev *dev) /* Allocate queues for pf */ if (hw->func_caps.rss) { pf->flags |= I40E_FLAG_RSS; + if (hw->mac.type == I40E_MAC_X722) + pf->flags |= I40E_FLAG_RSS_AQ_CAPABLE; pf->lan_nb_qps = RTE_MIN(hw->func_caps.num_tx_qp, (uint32_t)(1 << hw->func_caps.rss_table_entry_width)); pf->lan_nb_qps = i40e_align_floor(pf->lan_nb_qps); @@ -5253,23 +5311,78 @@ i40e_pf_disable_rss(struct i40e_pf *pf) } static int -i40e_hw_rss_hash_set(struct i40e_hw *hw, struct rte_eth_rss_conf *rss_conf) +i40e_set_rss_key(struct i40e_vsi *vsi, uint8_t *key, uint8_t key_len) { - uint32_t *hash_key; - uint8_t hash_key_len; - uint64_t rss_hf; - uint16_t i; - uint64_t hena; + struct i40e_pf *pf = I40E_VSI_TO_PF(vsi); + struct i40e_hw *hw = I40E_VSI_TO_HW(vsi); + int ret = 0; + + if (!key || key_len != ((I40E_PFQF_HKEY_MAX_INDEX + 1) * + sizeof(uint32_t))) + return -EINVAL; + + if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) { + struct i40e_aqc_get_set_rss_key_data *key_dw = + (struct i40e_aqc_get_set_rss_key_data *)key; + + ret = i40e_aq_set_rss_key(hw, vsi->vsi_id, key_dw); + if (ret) + PMD_INIT_LOG(ERR, "Failed to configure RSS key " + "via AQ"); + } else { + uint32_t *hash_key = (uint32_t *)key; + uint16_t i; - hash_key = (uint32_t *)(rss_conf->rss_key); - hash_key_len = rss_conf->rss_key_len; - if (hash_key != NULL && hash_key_len >= - (I40E_PFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t)) { - /* Fill in RSS hash key */ for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) I40E_WRITE_REG(hw, I40E_PFQF_HKEY(i), hash_key[i]); + I40E_WRITE_FLUSH(hw); } + return ret; +} + +static int +i40e_get_rss_key(struct i40e_vsi *vsi, uint8_t *key, uint8_t *key_len) +{ + struct i40e_pf *pf = I40E_VSI_TO_PF(vsi); + struct i40e_hw *hw = I40E_VSI_TO_HW(vsi); + int ret; + + if (!key || !key_len) + return -EINVAL; + + if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) { + ret = i40e_aq_get_rss_key(hw, vsi->vsi_id, + (struct i40e_aqc_get_set_rss_key_data *)key); + if (ret) { + PMD_INIT_LOG(ERR, "Failed to get RSS key via AQ"); + return ret; + } + } else { + uint32_t *key_dw = (uint32_t *)key; + uint16_t i; + + for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) + key_dw[i] = I40E_READ_REG(hw, I40E_PFQF_HKEY(i)); + } + *key_len = (I40E_PFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t); + + return 0; +} + +static int +i40e_hw_rss_hash_set(struct i40e_pf *pf, struct rte_eth_rss_conf *rss_conf) +{ + struct i40e_hw *hw = I40E_PF_TO_HW(pf); + uint64_t rss_hf; + uint64_t hena; + int ret; + + ret = i40e_set_rss_key(pf->main_vsi, rss_conf->rss_key, + rss_conf->rss_key_len); + if (ret) + return ret; + rss_hf = rss_conf->rss_hf; hena = (uint64_t)I40E_READ_REG(hw, I40E_PFQF_HENA(0)); hena |= ((uint64_t)I40E_READ_REG(hw, I40E_PFQF_HENA(1))) << 32; @@ -5286,6 +5399,7 @@ static int i40e_dev_rss_hash_update(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf) { + struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); uint64_t rss_hf = rss_conf->rss_hf & I40E_RSS_OFFLOAD_ALL; uint64_t hena; @@ -5301,23 +5415,20 @@ i40e_dev_rss_hash_update(struct rte_eth_dev *dev, if (rss_hf == 0) /* Disable RSS */ return -EINVAL; - return i40e_hw_rss_hash_set(hw, rss_conf); + return i40e_hw_rss_hash_set(pf, rss_conf); } static int i40e_dev_rss_hash_conf_get(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf) { + struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); - uint32_t *hash_key = (uint32_t *)(rss_conf->rss_key); uint64_t hena; - uint16_t i; - if (hash_key != NULL) { - for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) - hash_key[i] = I40E_READ_REG(hw, I40E_PFQF_HKEY(i)); - rss_conf->rss_key_len = i * sizeof(uint32_t); - } + i40e_get_rss_key(pf->main_vsi, rss_conf->rss_key, + &rss_conf->rss_key_len); + hena = (uint64_t)I40E_READ_REG(hw, I40E_PFQF_HENA(0)); hena |= ((uint64_t)I40E_READ_REG(hw, I40E_PFQF_HENA(1))) << 32; rss_conf->rss_hf = i40e_parse_hena(hena); @@ -5655,7 +5766,7 @@ i40e_pf_config_rss(struct i40e_pf *pf) sizeof(uint32_t); } - return i40e_hw_rss_hash_set(hw, &rss_conf); + return i40e_hw_rss_hash_set(pf, &rss_conf); } static int diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index 062878b01f..e0e9e6734d 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -117,6 +117,7 @@ enum i40e_flxpld_layer_idx { #define I40E_FLAG_HEADER_SPLIT_ENABLED (1ULL << 5) #define I40E_FLAG_FDIR (1ULL << 6) #define I40E_FLAG_VXLAN (1ULL << 7) +#define I40E_FLAG_RSS_AQ_CAPABLE (1ULL << 8) #define I40E_FLAG_ALL (I40E_FLAG_RSS | \ I40E_FLAG_DCB | \ I40E_FLAG_VMDQ | \ @@ -124,7 +125,8 @@ enum i40e_flxpld_layer_idx { I40E_FLAG_HEADER_SPLIT_DISABLED | \ I40E_FLAG_HEADER_SPLIT_ENABLED | \ I40E_FLAG_FDIR | \ - I40E_FLAG_VXLAN) + I40E_FLAG_VXLAN | \ + I40E_FLAG_RSS_AQ_CAPABLE) #define I40E_RSS_OFFLOAD_ALL ( \ ETH_RSS_FRAG_IPV4 | \