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igb: RSS RETA configuration

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Signed-off-by: Intel
This commit is contained in:
Intel 2013-06-03 00:00:00 +00:00 committed by Thomas Monjalon
parent 01a638e15d
commit 9236f43284
1 changed files with 77 additions and 0 deletions
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77
lib/librte_pmd_e1000/igb_ethdev.c
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@ -119,6 +119,10 @@ static int igbvf_vlan_filter_set(struct rte_eth_dev *dev,
uint16_t vlan_id, int on);
static int igbvf_set_vfta(struct e1000_hw *hw, uint16_t vid, bool on);
static void igbvf_set_vfta_all(struct rte_eth_dev *dev, bool on);
static int eth_igb_rss_reta_update(struct rte_eth_dev *dev,
struct rte_eth_rss_reta *reta_conf);
static int eth_igb_rss_reta_query(struct rte_eth_dev *dev,
struct rte_eth_rss_reta *reta_conf);
/*
* Define VF Stats MACRO for Non "cleared on read" register
@ -184,6 +188,8 @@ static struct eth_dev_ops eth_igb_ops = {
.flow_ctrl_set = eth_igb_flow_ctrl_set,
.mac_addr_add = eth_igb_rar_set,
.mac_addr_remove = eth_igb_rar_clear,
.reta_update = eth_igb_rss_reta_update,
.reta_query = eth_igb_rss_reta_query,
};
/*
@ -1895,3 +1901,74 @@ igbvf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
return 0;
}
static int
eth_igb_rss_reta_update(struct rte_eth_dev *dev,
struct rte_eth_rss_reta *reta_conf)
{
uint8_t i,j,mask;
uint32_t reta;
struct e1000_hw *hw =
E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
/*
* Update Redirection Table RETA[n],n=0...31,The redirection table has
* 128-entries in 32 registers
*/
for(i = 0; i < ETH_RSS_RETA_NUM_ENTRIES; i += 4) {
if (i < ETH_RSS_RETA_NUM_ENTRIES/2)
mask = (uint8_t)((reta_conf->mask_lo >> i) & 0xF);
else
mask = (uint8_t)((reta_conf->mask_hi >>
(i - ETH_RSS_RETA_NUM_ENTRIES/2)) & 0xF);
if (mask != 0) {
reta = 0;
/* If all 4 entries were set,don't need read RETA register */
if (mask != 0xF)
reta = E1000_READ_REG(hw,E1000_RETA(i >> 2));
for (j = 0; j < 4; j++) {
if (mask & (0x1 << j)) {
if (mask != 0xF)
reta &= ~(0xFF << 8 * j);
reta |= reta_conf->reta[i + j] << 8 * j;
}
}
E1000_WRITE_REG(hw, E1000_RETA(i >> 2),reta);
}
}
return 0;
}
static int
eth_igb_rss_reta_query(struct rte_eth_dev *dev,
struct rte_eth_rss_reta *reta_conf)
{
uint8_t i,j,mask;
uint32_t reta;
struct e1000_hw *hw =
E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
/*
* Read Redirection Table RETA[n],n=0...31,The redirection table has
* 128-entries in 32 registers
*/
for(i = 0; i < ETH_RSS_RETA_NUM_ENTRIES; i += 4) {
if (i < ETH_RSS_RETA_NUM_ENTRIES/2)
mask = (uint8_t)((reta_conf->mask_lo >> i) & 0xF);
else
mask = (uint8_t)((reta_conf->mask_hi >>
(i - ETH_RSS_RETA_NUM_ENTRIES/2)) & 0xF);
if (mask != 0) {
reta = E1000_READ_REG(hw,E1000_RETA(i >> 2));
for (j = 0; j < 4; j++) {
if (mask & (0x1 << j))
reta_conf->reta[i + j] =
(uint8_t)((reta >> 8 * j) & 0xFF);
}
}
}
return 0;
}