Add support of updating/querying redirection table in VF.
v2 changes:
* Add support of updating/querying i40e reta of VF.
Signed-off-by: Helin Zhang <helin.zhang at intel.com>
Reviewed-by: Jijiang Liu <jijiang.liu at intel.com>
Reviewed-by: Cunming Liang <cunming.liang at intel.com>
Reviewed-by: Jingjing Wu <jingjing.wu at intel.com>
---
lib/librte_pmd_i40e/i40e_ethdev_vf.c | 89 ++++++++++++++++++++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/lib/librte_pmd_i40e/i40e_ethdev_vf.c
b/lib/librte_pmd_i40e/i40e_ethdev_vf.c
index 8e41667..f2be639 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev_vf.c
+++ b/lib/librte_pmd_i40e/i40e_ethdev_vf.c
@@ -133,6 +133,12 @@ static int i40evf_dev_tx_queue_start(struct rte_eth_dev
*dev,
uint16_t tx_queue_id);
static int i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev,
uint16_t tx_queue_id);
+static int i40evf_dev_rss_reta_update(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size);
+static int i40evf_dev_rss_reta_query(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size);
static struct eth_dev_ops i40evf_eth_dev_ops = {
.dev_configure = i40evf_dev_configure,
@@ -157,6 +163,8 @@ static struct eth_dev_ops i40evf_eth_dev_ops = {
.rx_queue_release = i40e_dev_rx_queue_release,
.tx_queue_setup = i40e_dev_tx_queue_setup,
.tx_queue_release = i40e_dev_tx_queue_release,
+ .reta_update = i40evf_dev_rss_reta_update,
+ .reta_query = i40evf_dev_rss_reta_query,
};
static int
@@ -1573,3 +1581,84 @@ i40evf_dev_close(struct rte_eth_dev *dev)
i40evf_reset_vf(hw);
i40e_shutdown_adminq(hw);
}
+
+static int
+i40evf_dev_rss_reta_update(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size)
+{
+ struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t lut, l;
+ uint16_t i, j;
+ uint16_t idx, shift;
+ uint8_t mask;
+
+ if (reta_size != ETH_RSS_RETA_SIZE_64) {
+ PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
+ "(%d) doesn't match the number of hardware can"
+ "support (%d)\n", reta_size, ETH_RSS_RETA_SIZE_64);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < reta_size; i += I40E_4_BIT_WIDTH) {
+ idx = i / RTE_BIT_WIDTH_64;
+ shift = i % RTE_BIT_WIDTH_64;
+ 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_VFQF_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_VFQF_HLUT(i >> 2), lut);
+ }
+
+ return 0;
+}
+
+static int
+i40evf_dev_rss_reta_query(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size)
+{
+ struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t lut;
+ uint16_t i, j;
+ uint16_t idx, shift;
+ uint8_t mask;
+
+ if (reta_size != ETH_RSS_RETA_SIZE_64) {
+ PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
+ "(%d) doesn't match the number of hardware can"
+ "support (%d)\n", reta_size, ETH_RSS_RETA_SIZE_64);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < reta_size; i += I40E_4_BIT_WIDTH) {
+ idx = i / RTE_BIT_WIDTH_64;
+ shift = i % RTE_BIT_WIDTH_64;
+ mask = (uint8_t)((reta_conf[idx].mask >> shift) &
+ I40E_4_BIT_MASK);
+ if (!mask)
+ continue;
+
+ lut = I40E_READ_REG(hw, I40E_VFQF_HLUT(i >> 2));
+ for (j = 0; j < I40E_4_BIT_WIDTH; j++) {
+ if (mask & (0x1 << j))
+ reta_conf[idx].reta[shift] =
+ ((lut >> (CHAR_BIT * j)) &
+ I40E_8_BIT_MASK);
+ }
+ }
+
+ return 0;
+}
--
1.8.1.4
