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 <helin.zhang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
Helin Zhang 2015-10-13 15:19:49 +08:00 committed by Thomas Monjalon
parent 92fbf2cbdf
commit d0a349409b
2 changed files with 175 additions and 62 deletions

View File

@ -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) {
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);
}
lut = rte_zmalloc("i40e_rss_lut", reta_size, 0);
if (!lut) {
PMD_DRV_LOG(ERR, "No memory can be allocated");
return -ENOMEM;
}
return 0;
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;
if (reta_conf[idx].mask & (1ULL << shift))
reta_conf[idx].reta[shift] = lut[i];
}
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

View File

@ -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 | \