From: asomalap@amd.com
To: dev@dpdk.org
Cc: Ravi1.Kumar@amd.com
Subject: [dpdk-dev] [PATCH v4 2/2] net/axgbe: support priority flow control API
Date: Tue, 3 Mar 2020 13:49:58 +0530 [thread overview]
Message-ID: <20200303081958.71437-2-asomalap@amd.com> (raw)
In-Reply-To: <20200303081958.71437-1-asomalap@amd.com>
From: Amaranath Somalapuram <asomalap@amd.com>
Adding API for priority_flow_ctrl_set.
Priority flow control to set water high and low,
pause_time and priority.
Signed-off-by: Amaranath Somalapuram <asomalap@amd.com>
---
drivers/net/axgbe/axgbe_common.h | 16 ++++++
drivers/net/axgbe/axgbe_ethdev.c | 94 ++++++++++++++++++++++++++++++++
drivers/net/axgbe/axgbe_ethdev.h | 1 +
3 files changed, 111 insertions(+)
diff --git a/drivers/net/axgbe/axgbe_common.h b/drivers/net/axgbe/axgbe_common.h
index 2ac4d8946..bdd85a341 100644
--- a/drivers/net/axgbe/axgbe_common.h
+++ b/drivers/net/axgbe/axgbe_common.h
@@ -835,6 +835,22 @@
#define MTL_TC_ETSCR_TSA_WIDTH 2
#define MTL_TC_QWR_QW_INDEX 0
#define MTL_TC_QWR_QW_WIDTH 21
+#define MTL_TCPM0R_PSTC0_INDEX 0
+#define MTL_TCPM0R_PSTC0_WIDTH 8
+#define MTL_TCPM0R_PSTC1_INDEX 8
+#define MTL_TCPM0R_PSTC1_WIDTH 8
+#define MTL_TCPM0R_PSTC2_INDEX 16
+#define MTL_TCPM0R_PSTC2_WIDTH 8
+#define MTL_TCPM0R_PSTC3_INDEX 24
+#define MTL_TCPM0R_PSTC3_WIDTH 8
+#define MTL_TCPM1R_PSTC4_INDEX 0
+#define MTL_TCPM1R_PSTC4_WIDTH 8
+#define MTL_TCPM1R_PSTC5_INDEX 8
+#define MTL_TCPM1R_PSTC5_WIDTH 8
+#define MTL_TCPM1R_PSTC6_INDEX 16
+#define MTL_TCPM1R_PSTC6_WIDTH 8
+#define MTL_TCPM1R_PSTC7_INDEX 24
+#define MTL_TCPM1R_PSTC7_WIDTH 8
/* MTL traffic class register value */
#define MTL_TSA_SP 0x00
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 867c4744f..e7b731b2e 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -51,6 +51,8 @@ static int axgbe_flow_ctrl_get(struct rte_eth_dev *dev,
struct rte_eth_fc_conf *fc_conf);
static int axgbe_flow_ctrl_set(struct rte_eth_dev *dev,
struct rte_eth_fc_conf *fc_conf);
+static int axgbe_priority_flow_ctrl_set(struct rte_eth_dev *dev,
+ struct rte_eth_pfc_conf *pfc_conf);
struct axgbe_xstats {
char name[RTE_ETH_XSTATS_NAME_SIZE];
@@ -180,6 +182,7 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
.tx_queue_release = axgbe_dev_tx_queue_release,
.flow_ctrl_get = axgbe_flow_ctrl_get,
.flow_ctrl_set = axgbe_flow_ctrl_set,
+ .priority_flow_ctrl_set = axgbe_priority_flow_ctrl_set,
};
static int axgbe_phy_reset(struct axgbe_port *pdata)
@@ -927,6 +930,97 @@ axgbe_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
return 0;
}
+static int
+axgbe_priority_flow_ctrl_set(struct rte_eth_dev *dev,
+ struct rte_eth_pfc_conf *pfc_conf)
+{
+ struct axgbe_port *pdata = dev->data->dev_private;
+ struct xgbe_fc_info fc = pdata->fc;
+ uint8_t tc_num;
+
+ tc_num = pdata->pfc_map[pfc_conf->priority];
+
+ if (pfc_conf->priority >= pdata->hw_feat.tc_cnt) {
+ PMD_INIT_LOG(ERR, "Max supported traffic class: %d\n",
+ pdata->hw_feat.tc_cnt);
+ return -EINVAL;
+ }
+
+ pdata->pause_autoneg = pfc_conf->fc.autoneg;
+ pdata->phy.pause_autoneg = pdata->pause_autoneg;
+ fc.send_xon = pfc_conf->fc.send_xon;
+ AXGMAC_MTL_IOWRITE_BITS(pdata, tc_num, MTL_Q_RQFCR, RFA,
+ AXGMAC_FLOW_CONTROL_VALUE(1024 * pfc_conf->fc.high_water));
+ AXGMAC_MTL_IOWRITE_BITS(pdata, tc_num, MTL_Q_RQFCR, RFD,
+ AXGMAC_FLOW_CONTROL_VALUE(1024 * pfc_conf->fc.low_water));
+
+ switch (tc_num) {
+ case 0:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM0R,
+ PSTC0, pfc_conf->fc.pause_time);
+ break;
+ case 1:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM0R,
+ PSTC1, pfc_conf->fc.pause_time);
+ break;
+ case 2:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM0R,
+ PSTC2, pfc_conf->fc.pause_time);
+ break;
+ case 3:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM0R,
+ PSTC3, pfc_conf->fc.pause_time);
+ break;
+ case 4:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM1R,
+ PSTC4, pfc_conf->fc.pause_time);
+ break;
+ case 5:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM1R,
+ PSTC5, pfc_conf->fc.pause_time);
+ break;
+ case 7:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM1R,
+ PSTC6, pfc_conf->fc.pause_time);
+ break;
+ case 6:
+ AXGMAC_IOWRITE_BITS(pdata, MTL_TCPM1R,
+ PSTC7, pfc_conf->fc.pause_time);
+ break;
+ }
+
+ fc.mode = pfc_conf->fc.mode;
+
+ if (fc.mode == RTE_FC_FULL) {
+ pdata->tx_pause = 1;
+ pdata->rx_pause = 1;
+ AXGMAC_IOWRITE_BITS(pdata, MAC_RFCR, PFCE, 1);
+ } else if (fc.mode == RTE_FC_RX_PAUSE) {
+ pdata->tx_pause = 0;
+ pdata->rx_pause = 1;
+ AXGMAC_IOWRITE_BITS(pdata, MAC_RFCR, PFCE, 1);
+ } else if (fc.mode == RTE_FC_TX_PAUSE) {
+ pdata->tx_pause = 1;
+ pdata->rx_pause = 0;
+ AXGMAC_IOWRITE_BITS(pdata, MAC_RFCR, PFCE, 0);
+ } else {
+ pdata->tx_pause = 0;
+ pdata->rx_pause = 0;
+ AXGMAC_IOWRITE_BITS(pdata, MAC_RFCR, PFCE, 0);
+ }
+
+ if (pdata->tx_pause != (unsigned int)pdata->phy.tx_pause)
+ pdata->hw_if.config_tx_flow_control(pdata);
+
+ if (pdata->rx_pause != (unsigned int)pdata->phy.rx_pause)
+ pdata->hw_if.config_rx_flow_control(pdata);
+ pdata->hw_if.config_flow_control(pdata);
+ pdata->phy.tx_pause = pdata->tx_pause;
+ pdata->phy.rx_pause = pdata->rx_pause;
+
+ return 0;
+}
+
static void axgbe_get_all_hw_features(struct axgbe_port *pdata)
{
unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index 436d780c9..1d70559bf 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -586,6 +586,7 @@ struct axgbe_port {
unsigned int rx_rfa[AXGBE_MAX_QUEUES];
unsigned int rx_rfd[AXGBE_MAX_QUEUES];
unsigned int fifo;
+ unsigned int pfc_map[AXGBE_MAX_QUEUES];
/* Receive Side Scaling settings */
u8 rss_key[AXGBE_RSS_HASH_KEY_SIZE];
--
2.17.1
next prev parent reply other threads:[~2020-03-03 8:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-03 8:19 [dpdk-dev] [PATCH v4 1/2] net/axgbe: support flow control API asomalap
2020-03-03 8:19 ` asomalap [this message]
2020-03-16 3:53 ` Kumar, Ravi1
2020-03-16 12:52 ` Ferruh Yigit
-- strict thread matches above, loose matches on Subject: below --
2020-03-02 8:15 asomalap
2020-03-02 8:15 ` [dpdk-dev] [PATCH v4 2/2] net/axgbe: support priority " asomalap
2020-03-02 7:46 [dpdk-dev] [PATCH v4 1/2] net/axgbe: support " asomalap
2020-03-02 7:46 ` [dpdk-dev] [PATCH v4 2/2] net/axgbe: support priority " asomalap
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