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-rw-r--r--src/dpdk22/drivers/net/i40e/i40e_ethdev.c21
-rw-r--r--src/dpdk22/drivers/net/i40e/i40e_ethdev.h2
-rw-r--r--src/dpdk22/drivers/net/i40e/i40e_rxtx.c42
3 files changed, 35 insertions, 30 deletions
diff --git a/src/dpdk22/drivers/net/i40e/i40e_ethdev.c b/src/dpdk22/drivers/net/i40e/i40e_ethdev.c
index b73eedf1..5646eb53 100644
--- a/src/dpdk22/drivers/net/i40e/i40e_ethdev.c
+++ b/src/dpdk22/drivers/net/i40e/i40e_ethdev.c
@@ -3868,6 +3868,9 @@ i40e_update_default_filter_setting(struct i40e_vsi *vsi)
return i40e_vsi_add_mac(vsi, &filter);
}
+#ifdef TREX_PATCH
+#define LOW_LATENCY_WORKAROUND
+#ifdef LOW_LATENCY_WORKAROUND
static int
i40e_vsi_update_tc_max_bw(struct i40e_vsi *vsi, u16 credit){
struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
@@ -3885,7 +3888,8 @@ i40e_vsi_update_tc_max_bw(struct i40e_vsi *vsi, u16 credit){
}
return (0);
}
-
+#endif
+#endif
#define I40E_3_BIT_MASK 0x7
@@ -4447,18 +4451,16 @@ i40e_pf_setup(struct i40e_pf *pf)
pf->main_vsi = vsi;
-#define LOW_LATENCY_WORKAROUND
+#ifdef TREX_PATCH
#ifdef LOW_LATENCY_WORKAROUND
-
- /*
- Workaround for low latency issue.
- It seems RR does not work as expected both from same QSet and from different QSet
- Quanta could be very high and this creates very high latency, especially with long packet size (9K)
+ /*
+ Workaround for low latency issue.
+ It seems RR does not work as expected both from same QSet and from different QSet
+ Quanta could be very high and this creates very high latency, especially with long packet size (9K)
This is a workaround limit the main (bulk) VSI to 99% of the BW and by that support low latency (suggested by Intel)
ETS with with strict priority and 127 credit does not work .
-
*/
-
+
if (hw->phy.link_info.link_speed == I40E_LINK_SPEED_10GB) {
i40e_vsi_update_tc_max_bw(vsi,199);
}else{
@@ -4479,6 +4481,7 @@ i40e_pf_setup(struct i40e_pf *pf)
pf->ll_vsi = vsi;
#endif
+#endif
/* Configure filter control */
memset(&settings, 0, sizeof(settings));
diff --git a/src/dpdk22/drivers/net/i40e/i40e_ethdev.h b/src/dpdk22/drivers/net/i40e/i40e_ethdev.h
index 44082dfa..53d6afdd 100644
--- a/src/dpdk22/drivers/net/i40e/i40e_ethdev.h
+++ b/src/dpdk22/drivers/net/i40e/i40e_ethdev.h
@@ -396,7 +396,7 @@ TAILQ_HEAD(i40e_mirror_rule_list, i40e_mirror_rule);
struct i40e_pf {
struct i40e_adapter *adapter; /* The adapter this PF associate to */
struct i40e_vsi *main_vsi; /* pointer to main VSI structure */
- struct i40e_vsi * ll_vsi;
+ struct i40e_vsi * ll_vsi; // TREX_PATCH
uint16_t mac_seid; /* The seid of the MAC of this PF */
uint16_t main_vsi_seid; /* The seid of the main VSI */
uint16_t max_num_vsi;
diff --git a/src/dpdk22/drivers/net/i40e/i40e_rxtx.c b/src/dpdk22/drivers/net/i40e/i40e_rxtx.c
index d3ef00f8..ee3c3c1a 100644
--- a/src/dpdk22/drivers/net/i40e/i40e_rxtx.c
+++ b/src/dpdk22/drivers/net/i40e/i40e_rxtx.c
@@ -1923,30 +1923,34 @@ i40e_xmit_pkts_simple(void *tx_queue,
return nb_tx;
}
-
+// TREX_PATCH
+// Based on i40e_pf_get_vsi_by_qindex. Return low latency VSI one queue.
+#define LOW_LATENCY_WORKAROUND
+#ifdef LOW_LATENCY_WORKAROUND
static struct i40e_vsi*
i40e_pf_tx_get_vsi_by_qindex(struct i40e_pf *pf, uint16_t queue_idx)
{
- /* the queue in MAIN VSI range */
+ // For last queue index, return low latency VSI
if (queue_idx == pf->dev_data->nb_tx_queues-1) {
return pf->ll_vsi;
}
- if (queue_idx < pf->dev_data->nb_tx_queues)
- return pf->main_vsi;
+ /* the queue in MAIN VSI range */
+ if (queue_idx < pf->dev_data->nb_tx_queues)
+ return pf->main_vsi;
- queue_idx -= pf->main_vsi->nb_qps;
+ queue_idx -= pf->main_vsi->nb_qps;
- /* queue_idx is greater than VMDQ VSIs range */
- if (queue_idx > pf->nb_cfg_vmdq_vsi * pf->vmdq_nb_qps - 1) {
- PMD_INIT_LOG(ERR, "queue_idx out of range. VMDQ configured?");
- return NULL;
- }
+ /* queue_idx is greater than VMDQ VSIs range */
+ if (queue_idx > pf->nb_cfg_vmdq_vsi * pf->vmdq_nb_qps - 1) {
+ PMD_INIT_LOG(ERR, "queue_idx out of range. VMDQ configured?");
+ return NULL;
+ }
- return pf->vmdq[queue_idx / pf->vmdq_nb_qps].vsi;
+ return pf->vmdq[queue_idx / pf->vmdq_nb_qps].vsi;
}
-
+#endif
/*
* Find the VSI the queue belongs to. 'queue_idx' is the queue index
@@ -2339,8 +2343,6 @@ i40e_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
return ret;
}
-#define LOW_LATENCY_WORKAROUND
-
int
i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
@@ -2361,14 +2363,14 @@ i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
struct i40e_vf *vf =
I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
vsi = &vf->vsi;
- } else{
- #ifdef LOW_LATENCY_WORKAROUND
+ } else {
+// TREX_PATCH
+#ifdef LOW_LATENCY_WORKAROUND
vsi = i40e_pf_tx_get_vsi_by_qindex(pf, queue_idx);
- #else
- vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx);
- #endif
+#else
+ vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx);
+#endif
}
-
if (vsi == NULL) {
PMD_DRV_LOG(ERR, "VSI is NULL, or queue index (%u) "